Storage Box and Protective Pad for Hazardous Materials

Description

BACKGROUND OF THE INVENTION

The present invention relates to a protective pad for a storage box for hazardous materials, such as energy stores or energy converters, in particular batteries, accumulators or fuel cells, and to such a storage box.

SUMMARY OF THE INVENTION

Generic storage boxes, also referred to as transport containers or boxes, for storing, stocking and transporting hazardous materials are known in principle in the prior art and can be constructed, for example, in accordance with the transport box according to DE 20 2022 105 878 U1.

Such storage boxes must protect against the packaged hazardous materials being released in an uncontrolled manner and/or being damaged by external influences, such as UV radiation, temperature or mechanical action. When transporting high-power batteries, there is the risk of uncontrolled escape of hazardous materials in the event of damage, on the one hand, and, on the other hand, spontaneous release of the stored energy can occur with the consequence of a development of fire and/or temperature. In principle, the box must have the capability that no sparks and/or flames and/or parts potentially injuring humans get from the inside to the outside.

For example, it is known from DE 10 2020 101 243 B3 to line transport boxes for hazardous materials with thermal insulation. DE 10 2020 101 243 B3 discloses a transport box made of plastic for defective batteries, into which insulating cushions made of glass fiber fabric filled with rock wool are inserted. In this case, individual L-shaped, U-shaped or, in principle, rectangular cushions are combined in order to cover all six walls of the transport box. The individual cushions are fixedly attached to the respective wall and can be combined with loosely inserted insertion cushions made of glass fiber fabric in addition to securing the charge against slipping and for separating individual batteries.

Some disadvantages have become apparent with the known transport boxes, in particular according to DE 10 2010 048 051 A1. On the one hand, the lining of the transport box with the cushions is associated with a high outlay on assembly and handling. Furthermore, potentials for improvement have been established with regard to the protective and/or insulating properties to be provided by the cushions.

It is an object of the present invention to overcome the disadvantages from the prior art, in particular to improve a protective pad for such a storage box and such a storage box to the effect that assembly is facilitated and/or the effectiveness of the protective and/or insulating functions and/or the robustness with respect to external mechanical actions is increased.

The object is achieved by the subject matter of the independent claims.

Accordingly, a protective pad for a storage box, in particular made of metal, such as aluminium, for hazardous materials, such as energy stores or energy converters, in particular a battery, an accumulator or a fuel cell, is provided. The storage box can be configured to receive a plurality of individual hazardous material elements, and comprises a body with four surrounding walls as well as a bottom wall and a top or lid wall, which can be pivotably mounted on the body in order to open and close the storage box. The storage box can be designed, for example, in accordance with the transport box according to DE 20 2022 105 878 U1, the contents of which are fully incorporated herein by reference. The body can delimit a receiving space or interior space into which the hazardous material is inserted for storage, for transport and for protection. As is known, dampening and/or damping protective pads are arranged in the body.

The protective pad according to the invention comprises a cuboid grid of six contiguous pad sections, each facing a wall of the storage box. An insulating material is accommodated in these pad sections, which is electrically insulating and/or thermally insulating, in particular fire-retardant, and/or moisture-absorbing and/or acid-resistant and/or intumescent. Due to the fact that the individual pad sections each face a wall of the body, it is possible to line the body completely on the inside with the protective pad. The fire-retardant material contributes to preventing the spread of flames in the event of a fire. By means of electrically insulating material, short circuits and electrical hazards can be minimized. The moisture-absorbing material protects the hazardous materials from corrosion and other moisture-related damage, while the acid-resistant material protects the hazardous material from chemical attacks. By means of thermally insulating material, the temperature in the direction of the outer surfaces of the body is reduced as far as possible, so that the walls and/or outer surfaces of the container are heated as little as possible. As a result, the risk of injury and the risk of fire of surrounding objects or persons can be reduced. For example, the thermally insulating material can have a coefficient of thermal conductivity in the range of 0.5 to 1.5 W/(m*K), in particular in the range of 0.85 to 1.0 W/(m*K). The intumescent insulating material expands at high temperatures and forms an insulating layer, which controls the temperature development inside the storage box and thus increases safety. One of the advantages of the protective pad according to the invention is that, due to its structural unity, it can be inserted into the transport box in a single assembly step. According to an exemplary further development, the individual pad sections are dimensioned to match the respective wall to which the respective pad section is to be faced. As a result, when the protective pad is inserted into the storage box, it is ensured that the storage box can be lined as completely as possible without impairing the handling of the storage box, for example because the storage box can no longer be closed. As a result of the cuboid net structure, the fitter can insert the protective pad as a structural unit into the storage box, wherein, due to the particularly dimensional adaptation of the protective pad to the storage box, an implicit assembly instruction is given, namely via the orientation of the protective pad when inserted into the storage box. A further advantage of this protective pad lies in the modular design, which allows simple adaptation, in particular to different sizes.

According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a protective pad for a storage box, in particular made of metal, such as aluminium, for hazardous materials, such as energy stores or energy converters, in particular a battery, an accumulator or a fuel cell, is provided. The storage box can be configured to receive a plurality of individual hazardous material elements, and comprises a body with four surrounding walls as well as a bottom wall and a top or lid wall, which can be pivotably mounted on the body in order to open and close the storage box. The storage box can be designed, for example, in accordance with the transport box according to DE 20 2022 105 878 U1, the contents of which are fully incorporated herein by reference. The body can delimit a receiving space or interior space into which the hazardous material is inserted for storage, for transport and for protection. As is known, dampening and/or damping protective pads are arranged in the body.

The protective pad according to the invention comprises a plurality of at least partially contiguous pad sections, each facing a wall of the storage box. An insulating material is accommodated in these pad sections, which is electrically insulating and/or thermally insulating, in particular fire-retardant, and/or moisture-absorbing and/or acid-resistant and/or intumescent. Due to the fact that the individual pad sections each face a wall of the body, it is possible to line the body completely on the inside with the protective pad. The fire-retardant material contributes to preventing the spread of flames in the event of a fire. By means of electrically insulating material, short circuits and electrical hazards can be minimized. The moisture-absorbing material protects the hazardous materials from corrosion and other moisture-related damage, while the acid-resistant material protects the hazardous material from chemical attacks. By means of thermally insulating material, the temperature in the direction of the outer surfaces of the body is reduced as far as possible, so that the walls and/or outer surfaces of the container are heated as little as possible. As a result, the risk of injury and the risk of fire of surrounding objects or persons can be reduced. For example, the thermally insulating material can have a coefficient of thermal conductivity in the range of 0.5 to 1.5 W/(m*K), in particular in the range of 0.85 to 1.0 W/(m*K). The intumescent insulating material expands at high temperatures and forms an insulating layer, which controls the temperature development inside the storage box and thus increases safety.

According to this aspect of the invention, the pad sections have a cover made of plastic, in particular PU, coated fire-retardant fabric, such as glass fiber fabric. The cover made of plastic, in particular PU, coated fire-retardant fabric ensures increased mechanical stability and protection against external influences. The use of glass fiber fabric as a coating offers additional advantages such as high tensile strength and temperature resistance, which increases the durability and reliability of the protective pad. In this respect, a particularly effective protective pad for the safe storage and transport of hazardous materials is created, which integrates various protective mechanisms into a single protective pad.

According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a protective pad for a storage box, in particular made of metal, such as aluminium, for hazardous materials, such as energy stores or energy converters, in particular a battery, an accumulator or a fuel cell, is provided. The storage box can be configured to receive a plurality of individual hazardous material elements, and comprises a body with four surrounding walls as well as a bottom wall and a top or lid wall, which can be pivotably mounted on the body in order to open and close the storage box. The storage box can be designed, for example, in accordance with the transport box according to DE 20 2022 105 878 U1, the contents of which are fully incorporated herein by reference. The body can delimit a receiving space or interior space into which the hazardous material is inserted for storage, for transport and for protection. As is known, dampening and/or damping protective pads are arranged in the body.

The protective pad according to the invention comprises a plurality of at least partially contiguous pad sections, each facing a wall of the storage box. An insulating material is accommodated in these pad sections, which is electrically insulating and/or thermally insulating, in particular fire-retardant, and/or moisture-absorbing and/or acid-resistant and/or intumescent. Due to the fact that the individual pad sections each face a wall of the body, it is possible to line the body completely on the inside with the protective pad. The fire-retardant material contributes to preventing the spread of flames in the event of a fire. By means of electrically insulating material, short circuits and electrical hazards can be minimized. The moisture-absorbing material protects the hazardous materials from corrosion and other moisture-related damage, while the acid-resistant material protects the hazardous material from chemical attacks. By means of thermally insulating material, the temperature in the direction of the outer surfaces of the body is reduced as far as possible, so that the walls and/or outer surfaces of the container are heated as little as possible. As a result, the risk of injury and the risk of fire of surrounding objects or persons can be reduced. For example, the thermally insulating material can have a coefficient of thermal conductivity in the range of 0.5 to 1.5 W/(m*K), in particular in the range of 0.85 to 1.0 W/(m*K). The intumescent insulating material expands at high temperatures and forms an insulating layer, which controls the temperature development inside the storage box and thus increases safety.

According to this aspect of the invention, the insulating material of at least one pad section differs from the insulating material of at least one other pad section. This means that the pad sections can be individually adapted in order to meet specific protection requirements. For example, one pad section could contain a particularly moisture-absorbing material in order to prevent condensation, while another section contains a fire-retardant material in order to prevent the spread of flames. This differentiation of the materials within the pad sections enables an optimized protective effect, which is tailored to the specific risks and requirements of the stored or transported hazardous materials. A further advantage of this embodiment lies in the increased flexibility and adaptability of the protective pad. Due to the use of different insulating materials in the pad sections, the protective pad can react specifically to these hazards and thus offer comprehensive protection. This not only contributes to the safety of the stored or transported objects, but also protects the environment and the persons who handle these hazardous materials. For example, it is possible to fill the pad sections with the corresponding insulating material depending on the position of the respective pad section in the body of the storage box.

According to an exemplary embodiment, the pad sections facing the surrounding walls each contain a smoke- and/or gas-permeable, fire-retardant insulating material, such as hollow glass spheres or glass fiber flakes, and the pad sections facing the bottom wall and the top wall each contain a porous fire-retardant insulating material, such as vermiculite, perlite, foam glass or expanded glass. The insulating materials can thus each be tailored to the different walls of the box. The pad sections facing the surrounding walls of the storage box contain a smoke- and/or gas-permeable, fire-retardant insulating material, such as hollow glass spheres or glass fiber flakes, so that they allow smoke and gases to pass through, which allows controlled degassing, while at the same time having a fire-retardant effect in order to inhibit the spread of flames and the temperature development. The pad sections facing the bottom wall and the top wall of the storage box, on the other hand, contain a porous fire-retardant insulating material, such as vermiculite, perlite, foam glass or expanded glass, which have excellent fire-retardant properties and the capability of withstanding high temperatures.

According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a protective pad for a storage box, in particular made of metal, such as aluminium, for hazardous materials, such as energy stores or energy converters, in particular a battery, an accumulator or a fuel cell, is provided. The storage box can be configured to receive a plurality of individual hazardous material elements, and comprises a body with four surrounding walls as well as a bottom wall and a top or lid wall, which can be pivotably mounted on the body in order to open and close the storage box. The storage box can be designed, for example, in accordance with the transport box according to DE 20 2022 105 878 U1, the contents of which are fully incorporated herein by reference. The body can delimit a receiving space or interior space into which the hazardous material is inserted for storage, for transport and for protection. As is known, dampening and/or damping protective pads are arranged in the body.

The protective pad according to the invention comprises a plurality of at least partially contiguous pad sections, each facing a wall of the storage box. An insulating material is accommodated in these pad sections, which is electrically insulating and/or thermally insulating, in particular fire-retardant, and/or moisture-absorbing and/or acid-resistant and/or intumescent. Due to the fact that the individual pad sections each face a wall of the body, it is possible to line the body completely on the inside with the protective pad. The fire-retardant material contributes to preventing the spread of flames in the event of a fire. By means of electrically insulating material, short circuits and electrical hazards can be minimized. The moisture-absorbing material protects the hazardous materials from corrosion and other moisture-related damage, while the acid-resistant material protects the hazardous material from chemical attacks. By means of thermally insulating material, the temperature in the direction of the outer surfaces of the body is reduced as far as possible, so that the walls and/or outer surfaces of the container are heated as little as possible. As a result, the risk of injury and the risk of fire of surrounding objects or persons can be reduced. For example, the thermally insulating material can have a coefficient of thermal conductivity in the range of 0.5 to 1.5 W/(m*K), in particular in the range of 0.85 to 1.0 W/(m*K). The intumescent insulating material expands at high temperatures and forms an insulating layer, which controls the temperature development inside the storage box and thus increases safety.

According to this aspect of the invention, at least one pad section is divided into at least two contiguous chambers, in which different insulating materials are arranged. The division of a pad section into two or more contiguous chambers enables the targeted placement of different insulating materials, which each meet specific protective functions. For example, one chamber can contain an electrically insulating material in order to prevent short circuits, while another chamber contains a fire-retardant material in order to prevent the spread of flames. This combination of materials within a pad section maximizes the protective effect and increases the safety of the stored hazardous materials. An advantage of this design is the modular design, which allows simple adaptation and exchangeability of the pad sections. In addition, the use of different insulating materials in the chambers allows flexible adaptation to different hazard potentials, as a result of which the storage box is suitable for a wide range of hazardous materials. The possibility of dividing the pad sections into contiguous chambers also offers the advantage that the materials do not slip or mix during transport or storage, which further increases the reliability and effectiveness of the protective pad.

According to an exemplary embodiment, the at least one pad section, which in particular faces the bottom wall and/or the top wall, comprises a chamber on the interior side, which can be filled with expanded glass, and a chamber on the wall side, which contains glass fiber flakes. Expanded glass is a light, non-combustible material, which has excellent insulating properties and forms a barrier against heat and flames in the event of a fire. It can expand at high temperatures, as a result of which it forms an additional protective layer, which further inhibits the spread of fire and heat. The use of expanded glass in the chamber on the interior side thus contributes to increasing safety by controlling the temperature development inside the storage box and minimizing the risk of an explosion or an uncontrolled fire. The chamber on the wall side, which is filled with glass fiber flakes, offers additional structural integrity and protection. Glass fiber flakes have a high tensile strength and a capability of absorbing mechanical shocks. They act as a damping material, which protects the storage box from external influences and at the same time increases the stability of the box. In addition, glass fiber flakes are non-combustible and contribute to fire retardation by preventing the spread of flames. The combination of these two materials in separate chambers within a pad section allows effective utilization of their respective properties in order to offer comprehensive protection against various hazards associated with the storage and transport of hazardous materials, such as energy stores. The specific arrangement of the chambers within the pad sections enables targeted placement of the materials where they are most effective. The chamber on the interior side with expanded glass is positioned closer to the potential fire source in order to ensure an immediate reaction to high temperatures, while the chamber on the wall side with glass fiber flakes forms an additional protective layer, which absorbs mechanical and thermal loads. It can also be advantageous not to fill the chambers on the interior side, which face a surrounding wall of the storage box, with expanded glass.

According to an exemplary embodiment, the chambers are separated from one another by a common separating layer. This separating layer consists in particular of a plastic or PU-coated fire-retardant fabric, such as, for example, glass fiber fabric. The separating layer can be produced from one piece with the chambers, sewn and/or welded and/or adhesively bonded. The separating layer serves as a barrier between the chambers, which can contain different insulating materials in order to meet the specific requirements for the protection of the hazardous materials. The separating layer allows a modular design of the protective pad, in which various materials can be combined in the chambers in order to achieve an optimal protective effect. This is particularly important for the safe storage and transport of energy stores, such as batteries or accumulators, which can cause dangerous reactions in the event of damage or a defect. As a result of the separation of the chambers, the protective pad can be flexibly adapted to different requirements, which increases the versatility and applicability of the invention.

According to an exemplary embodiment, the at least partially contiguous pad sections can be inserted as a structural unit into the storage box and/or are connected to one another non-detachably, for example by sewing, adhesively bonding or the like, or in particular detachably without tools, for example by means of a Velcro and/or zip fastener. The possibility of inserting the pad sections as a structural unit into the storage box considerably facilitates the handling and assembly of the protective pad. This reduces the time and effort that would normally be required for inserting and positioning individual pad sections. The non-detachable connection of the pad sections by sewing ensures a durable and stable structure, which retains its shape and function even in the case of intensive utilization and loading. The detachable connection without tools by means of Velcro and/or zip fastener offers additional flexibility and user-friendliness. This type of connection allows the user to remove or exchange the pad sections quickly and easily if necessary, without the need for special tools.

According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a storage box, in particular made of metal, such as aluminium, for hazardous materials, such as energy stores or energy converters, in particular a battery, an accumulator or a fuel cell, is provided. The storage box can be configured to receive a plurality of individual hazardous material elements. The storage box can be designed, for example, in accordance with the transport box according to DE 20 2022 105 878 U1, the contents of which are fully incorporated herein by reference.

The storage box according to the invention comprises a body delimiting a storage space for the hazardous material with four surrounding walls as well as a bottom wall and a top or lid wall, which is pivotably mounted on the body in order to open the storage box into an open position and close it into a closed position.

According to this aspect of the present invention, the storage box further comprises an insulating protective pad, in particular configured according to one of the preceding aspects and/or exemplary embodiments, completely enclosing the hazardous material in the closed state, which is attached detachably, in particular without tools, to the body and/or the lid. The detachable attachment of the protective pad to the body and/or the lid allows simple assembly and disassembly of the pad. Furthermore, the protective pad can be flexibly adapted to different sizes and shapes of the storage box, which increases the modularity and versatility of the box.

According to an exemplary embodiment, the protective pad is configured such that it can be inserted as a structural unit and/or in a single assembly step into the storage space of the storage box. This means that the protective pad does not consist of a plurality of separate parts, which have to be individually inserted into the box, but is manufactured as a contiguous unit. This unit comprises all six pad sections facing the walls of the box and can be inserted as a whole into the box. The advantage of this design lies in the considerably simplified handling and assembly. In addition, a uniform and complete covering of the inner walls of the box is ensured by the uniform structure of the protective pad. The protective pad can be manufactured and/or tailored to an internal dimension of the storage box such that it fits exactly into the interior space of the box, as a result of which it bears tightly against the walls and no gaps or unprotected regions arise.

According to an exemplary embodiment, the protective pad is attached in particular detachably without tools at least to the body and/or the lid, for example by means of a Velcro and/or zip fastener. This specific configuration allows particularly simple and rapid assembly and disassembly of the protective pad. The use of Velcro and/or zip fasteners as fastening means offers a flexible and user-friendly solution which does not require special tools or specialist knowledge.

According to an exemplary embodiment, the storage box additionally comprises at least one separating cushion, which can be attached to the protective pad in particular detachably without tools, for example by means of a Velcro and/or zip fastener, and serves for dividing the storage space into compartments for one hazardous material each. In other words, a plurality of hazardous materials accommodated in the storage box can thus be separated from one another, in particular in order to minimize, in particular avoid, the risk of a chain reaction. The separating cushion allows flexible and adaptable division of the interior of the storage box, which is particularly advantageous when different hazardous materials, such as energy stores or energy converters, have to be stored or transported securely and separately from one another. The attachment without tools by means of Velcro and/or zip fastener offers a simple and rapid possibility of installing or removing the separating cushion, which facilitates the handling and adaptation of the storage box. By dividing the storage space, the hazardous materials can be securely insulated from one another, which minimizes the risk of cross-contamination or uncontrolled subsequent chemical reactions.

According to an exemplary embodiment, the separating cushion is configured to be connected to the protective pad on at least two, preferably three or four, surrounding sides. The separating cushion can have an approximately cuboidal shape. The compartments inside the box can thus be effectively insulated from one another.

BRIEF DESCRIPTION OF THE DRAWINGS

Further properties, features and advantages of the invention will become clear below by means of a description of preferred embodiments of the invention with reference to the accompanying exemplary drawings, in which:

FIG. 1 shows a schematic, perspective view of an exemplary embodiment of a folded protective pad;

FIG. 2 shows the protective pad from FIG. 1 in unfolded form;

FIG. 3 shows a front view of the unfolded protective pad from FIG. 2;

FIG. 4 shows a side view of the unfolded protective pad from FIG. 2 or 3;

FIG. 5 shows an exemplary embodiment of a storage box according to the invention in the closed state;

FIG. 6 shows an exemplary embodiment of a storage box according to the invention in the open state with an inserted protective pad according to the invention.

DEAILED DESCRIPTION

In the following description of exemplary embodiments of the present invention, a storage box according to the invention, which is produced from aluminium according to the exemplary embodiments, is generally provided with the reference sign 1, and a pad according to the invention, which is designed for insertion into an interior of the storage box 1, is provided with the reference sign 3. In the exemplary embodiments according to the figures, the protective pad 3 has a cuboid net structure 13 and is configured as a structural unit, which can be inserted into the storage box 1 in a single assembly step.

FIGS. 1 and 2 show the cuboid grid 13 of the protective pad 1, wherein, in FIG. 1, the protective pad is brought into a form in which it is arranged in the storage box 1. In FIG. 2, the cuboid grid 13 is still unfolded. The cuboid grid 13 has six contiguous pad sections 15 in order to be able to delimit a closed, in particular cuboid, space. According to FIG. 1, these pad sections 15 are arranged such that they each face a wall of the storage box 1. Furthermore, the pad sections 15 are connected to one another by means of a connecting seam 23 in order to form the structural unit. The connecting seams 23 furthermore function as a type of hinge joint in order to allow flexible adaptation of the protective pad 3 to a desired shape.

The storage box 1, as shown in FIG. 5, comprises a body 5, which consists of four surrounding walls 7.1, 7.2, 7.3 and 7.4 and a bottom wall 9. The storage box 1 further comprises a lid 21 pivotably mounted on the body 5. The lid 21, or the lid wall 11 thereof, is covered by the pad section 15 extending upwards away in FIG. 1. In order to allow opening and closing of the lid 21 of the storage box 1, the connecting seam 23 here also supports the flexible pivoting of the pad sections 15 relative to one another.

Each pad section 15 contains an insulating material, which can be electrically insulating, thermally insulating, in particular fire-retardant, moisture-absorbing, acid-resistant and/or intumescent. These materials are accommodated in a cover made of plastic, in particular PU, coated fire-retardant fabric, such as glass fiber fabric.

The pad sections 15 are admittedly inserted as a structural unit into the storage box 1, but can be attached individually, preferably detachably without tools, for example by means of a Velcro and/or zip fastener, to the body 5 on the wall 7.1, 7.2, 7.3, 7.4, 9, 11 facing the respective pad section 15.

FIG. 2 shows in particular the adaptation to the dimensions of the storage box 1, in particular the adaptation to the walls of the storage box 1 to be covered. The individual pad sections 15 are, in principle, rectangular, wherein the exact dimensions thereof vary among one another in order thus to reflect the different sizes of bottom wall and top wall 9, 11 with respect to the surrounding walls 7.1 to 7.4.

FIGS. 3 and 4 show further preferred properties of a protective pad 3 according to the invention in order to further improve the effectiveness and the flexibility with respect to the use of the protective pad 3. The pad sections 15 are each divided into two contiguous chambers 17 and 19, which can be filled with different insulating materials. As can be seen in FIG. 3, the chambers 17 and 19 are separated from one another by a common separating layer 25. This separating layer 25 consists of plastic, in particular PU, coated fire-retardant fabric, such as glass fiber fabric. [0055] Furthermore, it is possible that, as can be seen in FIG. 4 in the upper pad section 15, the chambers 17, 19 each have a separate separating layer 27, 29. As a result, the two chambers 17, 19 can be moved at least partially independently of one another. Furthermore, it has proven advantageous to divide the chamber 19, which is to be arranged on the top wall 11 and faces the interior of the storage box 1, into two chamber compartments 19. 1, 19. 2 divided by means of a separating seam 31. Due to the flowability of the insulating material arranged in the chamber 19, the subdivision into chamber compartments prevents the insulating material from completely shifting downwards or settling downwards as a result of the force of gravity when the lid 21 is open.

The chambers 19, which are located on the interior side, can contain an insulating material, which can be expanded glass, for example. This material serves for direct fire retardation and contour sealing. As indicated in FIGS. 3 and 4, it can also be advantageous not to fill the chambers 19′ on the interior side, which face a surrounding wall of the storage box, with expanded glass. The chambers 17 on the wall side contain another insulating material, such as glass fiber flakes, which is smoke- and gas-permeable as well as fire-retardant. It can be provided that the pad sections 15 to be covered by the surrounding walls 7.1-7.4 are not divided and are covered with the same insulating material, for example a glass fiber filling.

FIG. 5 shows a storage box 1, which is designed specifically for the storage and the transport of hazardous materials, such as energy stores or energy converters, in particular batteries, accumulators or fuel cells. The box consists of a body 5 with four surrounding walls 7.1, 7.2, 7.3, 7.4, a bottom wall 9 and a top or lid wall 11. The storage box 1 is located in the closed state, i.e. with the lid 21 closed.

The body 5 is equipped with hinges and closures, which ensure a safe and tight closure. The closures are visible on the front side of the box and allow simple opening and closing. The storage box 1 is furthermore equipped with handles, which are attached to the side walls 7.2 and 7.4 in order to facilitate transport.

The storage box 1 is manufactured from metal, preferably aluminium, which gives it high stability and resistance. The surrounding walls 7.1, 7.2, 7.3, 7.4 are configured such that they form a robust structure, which protects the contents of the box. The bottom wall 9 and the top wall 11 are likewise made of the same material.

In addition, the storage box 1 is equipped with a protective pad, which is inserted into the body 5 (not visible in FIG. 5). The storage box 1 thus offers a safe and efficient solution for the storage and transport of hazardous materials, in that it combines a robust structure with a special protective pad 3, which protects the contents from various hazards.

FIG. 6 shows the storage box 1 from FIG. 5 in the open state with an inserted protective pad 1 according to the invention, which is attached to the body on the inside detachably without tools, in particular by means of a Velcro and/or zip fastener. It is particularly advantageous here, as can be seen in FIG. 6, that the pad section 15 facing the lid 21 moves together with the open lid 21, in order to expose the interior of the body 5 and allow insertion of the hazardous material (not shown). Due to the cuboid net structure of the protective pad 1, the pad sections 15 rest on one another or abut one another in the closed state in order to form a protective space which is as sealed as possible and which accommodates the hazardous material. The pad section 15 facing the lid 21 is dimensioned smaller with respect thereto, since the lid 21 in the closed state (FIG. 5) projects beyond the dimensions of the body 5 on the outside and thus the pad section 15 remains inside the body and is not clamped between body 5 and lid 21.

The features disclosed in the preceding description, the figures and the claims can be significant both individually and in any combination for the realization of the invention in the various configurations.

REFERENCE SIGNS

• • 1 Storage box
  • 3 Protective pad
  • 5 Body
  • 7 surrounding wall
  • 9 Bottom wall
  • 11 lid wall
  • 13 Cuboid grid
  • 15 Pad section
  • 17, 19, 19′ Chamber
  • 21 Lid
  • 23 Connecting seam
  • 25, 27, 29 Separating layer
  • 31 Separating seam