DEVICE FOR STORING ELECTRICAL POWER

Abstract

An electrical power storage device comprises an electrical power storage module, a lower housing configured to accommodate the electrical power storage module, and a positioning element configured to rest against both a side face of the electrical power storage module and an inner wall of the lower housing, thereby limiting the relative movement of the electrical power storage module within the lower housing. The positioning element is located in a gap where the side face and the inner wall are opposite each other. The positioning element contains a thermally conductive material. The material is deformable according to the gap.

Description

BACKGROUND OF THE INVENTION 1. Field of the invention

[0001] The present disclosure relates to a device for storing electrical power. 2. Description of the related prior art

[0002] For example, Japanese patent no. 4858660 (JP 4858660 B) describes a mounting structure for a secondary battery. The mounting structure includes positioning pins. BRIEF SUMMARY OF THE INVENTION

[0003] If the gap between parts is small, or if the parts move slightly before fastening, positioning pins are sometimes used to assemble the parts, or positioning structures are installed to prevent contact between the fastened parts or abnormal noise caused by such contact. However, using positioning pins in a production step sometimes increases the production costs of fully automated processes because additional steps are required, such as a step to attach the positioning pins, a step to remove them, and a step to reuse them. Using positioning structures solely for positioning purposes can also sometimes increase production costs.

[0004] The present disclosure was developed to solve the problem described above. One objective of the present disclosure is to provide a device for storing electrical power that prevents the positional accuracy of a part from deteriorating, while simultaneously preventing an increase in production costs.

[0005] An electrical power storage device according to one aspect of the present disclosure comprises an electrical power storage module, a housing configured to accommodate the electrical power storage module, and a positioning element configured to bear against both a side face of the electrical power storage module and an inner wall of the housing, thereby limiting the relative movement of the electrical power storage module within the housing. The positioning element is provided in a gap in which the side face and the inner wall are opposite each other. The positioning element contains a thermally conductive material. The material is deformable according to the gap.

[0006] This allows the electrical power storage module to be positioned in the housing without a positioning pin. Furthermore, the positioning component allows the module's heat to be dissipated to the housing. Therefore, the positioning component can be given a cooling function in addition to its positioning function. This prevents a deterioration in the part's positioning accuracy and thus avoids increased production costs.

[0007] In the present embodiment, the module for storing electrical power can be clamped in the positioning component in a predefined direction, and the relative movement can be limited in the predefined direction.

[0008] In this way, it is possible to dissipate the heat of the electrical power storage module to the housing via the positioning components and at the same time limit the relative movement of the electrical power storage module.

[0009] Furthermore, in the present embodiment, the side surface of the electrical power storage module and a surface of the positioning component that is in contact with the electrical power storage module can each be provided with a projection and a recess that can be joined together.

[0010] In this way, it is possible to integrate the electrical power storage module and the positioning component into the housing, thus increasing assembly capability.

[0011] Furthermore, in the present embodiment, the housing can comprise an upper cover and a lower housing. The positioning component can be designed such that its upper end rests against the upper cover.

[0012] In this way, the heat from the electrical power storage module can be dissipated to the upper cover of the housing via the positioning component, in addition to the inner wall of the lower housing.

[0013] In the present embodiment, the positioning component can also have a projection that rests against the upper surface of the module for storing electrical power.

[0014] In this way, the positioning component's projection also limits the upward relative movement of the electrical power storage module. This prevents abnormal noises or similar issues from occurring.

[0015] According to the present disclosure, it is possible to provide a device for storing electrical power that prevents the positioning accuracy of a part from deteriorating while preventing production costs from increasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Features, advantages and technical and industrial significance of embodiments of the invention are described below with reference to the accompanying drawings, in which the same symbols denote the same elements and in which: Fig. Figure 1 is a diagram showing an example of the configuration of a device for storing electrical power according to the present embodiment; Fig. Figure 2 is a sectional view to describe an example in which a module for storing electrical power is arranged; Fig. Figure 3 is a sectional view of an embodiment of the device for storing electrical power according to the present embodiment; Fig. Figure 4 is a sectional view of an example configuration of an electrical power storage device according to a modification example; and Fig. Figure 5 is a sectional view of another example of a configuration of a device for storing electrical power according to a modification example. DETAILED DESCRIPTION OF THE EXECUTION EXAMPLES

[0017] An embodiment of the present disclosure is described in detail below with reference to the drawings. It should be noted that identical or corresponding parts in the drawings are identified by the same reference numerals and are not described repeatedly.

[0018] Fig. Figure 1 is a diagram showing an example of the configuration of a device for storing electrical power 10 according to the present embodiment. Fig. Figure 1 is a top view of the electrical power storage device 10. The electrical power storage device 10 is, for example, mounted on an electrified vehicle, such as a hybrid electric vehicle or a battery-powered electric vehicle, which uses an electric motor as its drive source. The electrical power storage device 10 has, for example, a rectangular shape and is mounted on a vehicle such that its longitudinal direction coincides with the vehicle's width or front-to-back direction. The electrical power storage device 10 supplies electrical power to the vehicle's electric motor and is recharged when it receives regenerated electrical power from the electric motor.

[0019] As in Fig. As shown in Figure 1, the electrical power storage device 10 comprises an electrical power storage module 14, a lower housing 12 and positioning components 30, 32, 34, 36.

[0020] The electrical power storage module 14, for example, comprises a plurality of battery cells arranged in a predetermined direction and connected in series. It should be noted that the electrical power storage module 14 can, for example, comprise a plurality of battery cell groups connected in series. In each of the battery cell groups, two or more battery cells are connected in parallel.

[0021] Each of the battery cells is, for example, a secondary battery, such as a nickel-hydride battery or a lithium-ion battery. The battery cell can contain a liquid or a solid electrolyte. Furthermore, the battery cell can have a polygonal column shape or a cylindrical shape. Additionally, the device for storing electrical power can contain one or more rechargeable and dischargeable capacitors instead of battery cells.

[0022] The electrical power storage module 14 is housed in the lower enclosure 12. An enclosure comprises the lower enclosure 12 and an upper cover (not shown), which will be described later. The electrical power storage module 14 is attached to an upper opening of the lower enclosure 12 and is positioned on a bottom surface of the lower enclosure 12. The electrical power storage module 14 has a bolt hole 16 oriented in the up-down direction (foreground-background direction). Fig. 1) is formed. The bolt hole 16 can be provided, for example, on an end plate or similar part of the electrical power storage module 14. A bolt is inserted into the bolt hole 16 and fastened to a nut attached to the bottom surface of the lower housing 12 to secure the electrical power storage module 14 to the bottom surface of the lower housing 12. The bolt hole 16 is provided at several locations on the electrical power storage module 14. Fig. Figure 1 shows an example in which six bolt holes 16, 18, 20, 22, 24, 26 are formed on the electrical power storage module 14, and nuts are attached to the lower housing 12 at six corresponding positions. It is sufficient if the nuts are attached at multiple locations. In particular, the nuts do not need to be attached at six positions. The upper cover is provided for closing the opening of the lower housing 12 to which the electrical power storage module 14 is attached.

[0023] In this case, where the distance between the lower housing 12 and the electrical power storage module 14 is short, the deteriorated positional accuracy of the parts sometimes causes them to come into contact with each other and produce abnormal noises when the vehicle vibrates. Furthermore, in a case where a thermally conductive material, including a silicone-based adhesive or the like, is provided between the lower housing 12 and the electrical power storage module 14, the electrical power storage module 14 and the lower housing 12 sometimes exhibit a positional misalignment before the electrical power storage module 14 is attached to the lower housing 12, and also after the electrical power storage module 14 has been mounted to the lower housing 12. To counteract such deteriorated positional accuracy, orTo avoid such positional deviation, it is conceivable to mount the electrical power storage module 14 in the lower housing part 12, e.g. using positioning pins.

[0024] The following is an example in which the electrical power storage module 14 is positioned relative to the lower housing 12 using positioning pins. Fig. Figure 2 is a sectional view to describe an example in which the electrical power storage module 14 is positioned. Fig. Figure 2 shows a diagram representing a section along an AA plane in Fig. 1 corresponds to.

[0025] As in Fig. As shown in Figure 2, a thermally conductive material 50 is provided between the bottom surface of the lower housing 12 and the electrical power storage module 14. Furthermore, a cooling device 60 is provided below the lower housing 12. The cooling device 60 is configured, for example, to allow a refrigerant to flow through it. The cooling device 60 is configured to enable heat exchange with the electrical power storage module 14 through the lower housing 12 and the thermally conductive material 50.

[0026] A nut 46 is attached to a stand component 13 by welding or the like. The stand component 13 is attached to the bottom surface of the lower housing 12 by welding or the like. A positioning pin 48 is attached to the nut 46. The shape of the stand component 13 is not related to the one shown in Fig. The form shown in Figure 2 is limited, in particular as long as the shape of the stand component 13 allows the nut 46 to be fastened with a bolt inserted from above when the stand component 13 is attached to the bottom surface of the lower housing 12. The nut 46 can also be attached directly to the lower housing 12 by welding or similar means.

[0027] It should be noted that the positioning pins 48 can be attached to nuts at the positions corresponding to the respective bolt holes 16, 18, 20, 22, 24, and 26. The positioning pins 48 can be attached to nuts at a minimum of two positions. The thermally conductive material 50 is then applied to the base of the lower housing 12. The electrical power storage module 14 is then attached to the lower housing 12 such that the positioning pin 48 is inserted into the bolt hole 16 on the electrical power storage module 14. The positioning pin 48 is then loosened, and bolts are inserted into the bolt holes 16, 18, 20, 22, 24, and 26. The bolt is secured to the nut 46 to fix the electrical power storage module 14 to the lower housing 12.

[0028] However, using the positioning pin 48 in a single step of the manufacturing process for the electrical power storage device 10 sometimes increases the manufacturing costs of full automation, as steps are required such as a step to attach the positioning pin 48, a step to remove the positioning pin 48, and a step to reuse the positioning pin 48. Furthermore, it is also conceivable to attach positioning structures to the lower housing part 12 and the electrical power storage module 14 instead of the positioning pins 48. However, simply installing the positioning structures for positioning purposes sometimes increases production costs.

[0029] Accordingly, the present embodiment assumes that positioning components are included, each of which is provided in a gap in which a side surface of the electrical power storage module 14 and an inner wall of the lower housing 12, which is contained in the housing, are opposite each other, bear against both the side surface of the electrical power storage module 14 and the inner wall of the lower housing 12 and limit the relative movement of the electrical power storage module 14 in the housing, and the positioning components each contain a material with thermal conductivity that is deformable according to the gap between the side surface of the electrical power storage module 14 and the inner wall of the housing.

[0030] In this way, it is possible to position the electrical power storage module 14 in the housing without positioning pins. Furthermore, it is possible to dissipate the heat from the electrical power storage module 14 to the housing via the positioning components. Therefore, in addition to their positioning function, the positioning components can also be given a cooling function. This prevents a deterioration in the positioning accuracy of a part and simultaneously avoids an increase in production costs.

[0031] Fig. Figure 3 is a sectional view of an embodiment of the device for storing electrical power 10 according to the present embodiment. Fig. 3 is a cross-sectional view along an AA plane in Fig. 1. As in Fig. As shown in Figure 3, the device for storing electrical power 10 according to the present embodiment comprises the components shown in Figure 3. Fig. 1 positioning components 30, 32, 34, 36 shown.

[0032] As in Fig. As shown in Figure 3, the positioning component 30 is provided in a gap in which a side surface of the electrical power storage module 14 and an inner wall of the lower housing 12, which is contained within the housing, are opposite each other. The positioning component 30 is shaped such that it fills the gap and bears against both the side surface of the electrical power storage module 14 and the inner wall of the lower housing 12. The positioning component 30 limits the relative movement of the electrical power storage module 14 in the lower housing 12 by the opposing positioning component 32. In the present embodiment, the positioning component 30 corresponds to a "first component" and the positioning component 32 corresponds to a "second component".The positioning component 30 consists of a thermally conductive material that is deformable according to the gap between the side surface and the inner wall. The material contained in the positioning component 30 can be, for example, a resin component or an elastic component such as rubber. Furthermore, the positioning component 30 is, as shown in . Fig. 1 shown, continuously shaped along the side surface of the module for storing electrical power 14, so that its length can be predetermined.

[0033] The thermally conductive material 50 is positioned between the electrical power storage module 14 and the lower housing 12. The thermally conductive material 50 is applied, for example, before the electrical power storage module 14 is attached to the lower housing 12. The thermally conductive material 50 comprises, for example, a silicone-based adhesive with high thermal conductivity. The cooling device 60 is located below the lower housing 12. The heat generated in the electrical power storage module 14 is transferred to the cooling device 60 via the lower housing 12 and the thermally conductive material 50. This cools the electrical power storage module 14.

[0034] The positioning components 32, 34, 36 are designed in the same way as the positioning component 30. Therefore, the electrical power storage module 14 is designed to be positioned between the positioning components 30, 32 in a predetermined first direction (the transverse direction of the blade). Fig. 1) is clamped. That is, the positioning components 30, 32 limit the relative movement of the electrical power storage module 14 with respect to the lower housing 12 in the first direction. Similarly, the electrical power storage module 14 is designed to be clamped between the positioning components 34, 36 in a second direction (the vertical direction of the arc of Fig. 1), which is predefined, is clamped. That is, the positioning components 34, 36 limit the relative movement of the electrical power storage module 14 with respect to the lower housing 12 in the second direction.

[0035] Furthermore, as in Fig. Figure 3 shows the side surface of the electrical power storage module 14 and a surface of the positioning component 30, which is in contact with the electrical power storage module 14, each provided with a projection and a recess that can be joined together. More precisely, as shown in Fig. As shown in Figure 3, a projection 15 is formed on the side surface of the electrical power storage module 14, projecting towards an inner wall of the lower housing 12. Furthermore, a recess 31 is formed on the surface of the positioning component 30, which is in contact with the electrical power storage module 14, into which the projection 15 can be fitted. The projection 15 on the side surface of the electrical power storage module 14 fits into the recess 31 of the positioning component to enable the integrated movement of the electrical power storage module 14 and the positioning component 30. The positioning components 32, 34, and 36 are each attached to the electrical power storage module 14 by a similar structure to enable integrated movement.The electrical power storage module 14 is housed in the lower housing 12, with the positioning components 30, 32, 34, 36 attached to the electrical power storage module 14. This configuration limits the relative movement of the electrical power storage module 14 with respect to the lower housing 12 by means of the positioning components 30, 32, 34, 36. A bolt 44 is inserted into each of the bolt holes 16, 18, 20, 22, 24, 26 and fastened to the nut 46, thereby limiting the relative movement of the electrical power storage module 14 with respect to the lower housing 12 and securing the electrical power storage module 14 to the lower housing 12.

[0036] The operating effect of the electrical power storage device 10 with the configuration described above is described. The projections on the side surfaces of the electrical power storage module 14 are fitted into the recesses of the positioning components 30, 32, 34, 36. The electrical power storage module 14 and the positioning components 30, 32, 34, 36 are thus integrally movable. The bottom surface of the lower housing 12 is pre-coated with the thermally conductive material 50.When the electrical power storage module 14 and the positioning components 30, 32, 34, 36 are attached from the opening of the lower housing 12, the positioning components 30, 32, 34, 36 each rest against both the side surface of the electrical power storage module 14 and the inner wall of the lower housing 12, thus limiting the relative movement of the electrical power storage module 14 with respect to the lower housing 12. Therefore, the position of the electrical power storage module 14 cannot be changed after it has been installed in the lower housing 12.The bolts 44 are inserted into the respective bolt holes 16, 18, 20, 22, 24, 26 and fastened to the corresponding nuts 46, limiting the relative movement of the electrical power storage module 14 relative to the lower housing 12, thereby fixing the electrical power storage module 14 to the lower housing 12.

[0037] Such a configuration eliminates the need for devices such as positioning pins. Therefore, a step to attach a positioning pin to the nut 46 and a step to detach the positioning pin from the nut 46 are not required. One production step is simplified.

[0038] Furthermore, electrical power is exchanged, for example, with an electric motor that propels a vehicle to transfer the heat generated in the electrical power storage module 14 to the lower housing 12 via the thermally conductive material 50 and the positioning components 30, 32, 34, 36. The heat transferred to the lower housing 12 is dissipated by the cooling device 60, thereby cooling the electrical power storage module 14. As described above, the positioning components 30, 32, 34, 36 assist the electrical power storage module 14 in heat dissipation. This makes it possible to increase the battery's power output.

[0039] As described above, the electrical power storage device 10, according to the present embodiment, allows the electrical power storage module 14 to be positioned within the lower housing 12 without the use of positioning pins. Furthermore, the heat from the electrical power storage module 14 can be dissipated to the housing via the positioning components 30, 32, 34, 36. Therefore, each of the positioning components 30, 32, 34, 36 can be assigned a cooling function in addition to its positioning function. The positioning components 30, 32, 34, 36 each have several of the functions described above in order to prevent an increase in production costs.In this way, it is possible to provide a device for storing electrical power that prevents a deterioration in the positioning accuracy of a part while simultaneously preventing an increase in production costs.

[0040] Furthermore, the positioning components 30, 32, 34, 36 are located on the respective side surfaces of the electrical power storage module 14 and the respective inner walls of the lower housing 12. It is therefore possible to avoid noise caused by repeated contact and separation of parts, which is generated by vibrations or similar forces during vehicle operation.

[0041] Positioning pins are unnecessary, thus eliminating the need for a step to attach the positioning pins, a step to remove the positioning pins, a step to reuse the positioning pins, and so on. It is therefore possible to prevent an increase in production costs.

[0042] Furthermore, the relative movement of the electrical power storage module 14 within the housing, including the lower housing, is prevented. Therefore, even in a case where a vehicle experiences a collision or similar event while driving, the positioning components 30, 32, 34, 36 can reduce the impact and decrease the inertia generated in the electrical power storage module 14.

[0043] Examples of changes are described below.

[0044] In the embodiment described above, the configuration in which the positioning components 30, 32, 34, 36 abut the lower housing 12 was described as an example. However, such a configuration is not particularly restrictive. For example, the positioning components 30, 32, 34, 36 can also be configured so that they abut the upper cover in addition to the lower housing 12. Furthermore, thermally conductive material can be provided between a lower section of each of the positioning components 30, 32, 34, 36 and the lower housing 12.

[0045] Fig. Figure 4 is a sectional view of an example of the configuration of the electrical power storage device 10 according to a modification example. Fig. Figure 4 shows a diagram representing a cross-section of the electrical power storage device 10 along the AA plane in Fig. 1 corresponds to this. Fig. The device shown in Figure 4 for storing electrical power differs from the one in Figure 10. Fig. 3 device for storing electrical power 10 shown by the fact that an upper cover 70 is shown which is in Fig. 4 The device for storing electrical power 10 shown contains a positioning component 38 instead of the positioning component 30 and a thermally conductive material 52 is provided in addition to the thermally conductive material 50 provided on the lower housing 12. The in Fig. The device for storing electrical power 10 shown in Figure 4 is, with the exception of one case described below, constructed in the same way as the one shown in Figure 4. Fig. 3. Device for storing electrical power shown. 10. A detailed description is therefore not repeated.

[0046] As in Fig. As shown in Figure 4, the positioning component 38 differs from the positioning component 30 in that the positioning component 38 has a shape that projects beyond an upper surface of the electrical power storage module 14 and reaches a position where the upper cover 70 abuts. An upper surface of the positioning component 38 is shaped such that its entire upper surface matches the shape of the upper cover 70. Furthermore, the thermally conductive material 52 is provided between a lower section of the positioning component 38 and the lower housing 12. Like the thermally conductive material 50, the thermally conductive material 52 contains a silicone-based adhesive.

[0047] It should be noted that the other positioning components, corresponding to positioning components 32, 34, and 36, which are located higher than the upper surface of the electrical power storage module 14, each have a shape in which the entire upper surface rests against the upper cover 70, as with positioning component 38. A detailed description is therefore not repeated. Furthermore, a thermally conductive material similar to thermally conductive material 52 is also provided under each of the other positioning components corresponding to positioning components 32, 34, and 36.

[0048] According to such a configuration, when the electrical power storage module 14, to which the four positioning components including positioning component 38 are attached, is housed in the lower casing 12 and the upper cover 70 is fitted to close the upper opening of the lower casing 12, the entire upper surface sections of the four positioning components are in contact with the upper cover 70. Furthermore, the lower sections of the four positioning components each are in contact with a thermally conductive material, which includes the thermally conductive material 52 applied to the lower casing 12. Therefore, the heat generated in the electrical power storage module 14 is also transferred by the four positioning components to the upper cover 70 and the thermally conductive material 52.In this way, the heat is transferred in several ways, and it is possible to further increase the cooling capacity of the module for storing electrical power 14.

[0049] The positioning component 38 can further be configured to limit the relative movement of the electrical power storage module 14 in the up-down direction.

[0050] Fig. Figure 5 is a sectional view of another example of the configuration of the electrical power storage device 10 according to a modification example. Fig. Figure 5 shows a diagram representing a cross-section through the electrical power storage device 10 along the AA plane in Fig. 1 corresponds to this. Fig. The device shown in Figure 5 for storing electrical power differs from the one in Figure 10. Fig. 4 device for storing electrical power 10 shown by the fact that the in Fig. The device for storing electrical power 10 shown in Figure 5 has a positioning component 40 instead of the positioning component 38. The device shown in Figure 5 has a positioning component 40 instead of the positioning component 38. Fig. The device shown in Figure 5 for storing electrical power is configured in the same way as the one shown in Figure 10 in other respects. Fig. 4. Device for storing electrical power 10 shown, with the exception of one case described below. A detailed description is therefore not repeated.

[0051] As in Fig. As shown in Figure 5, the positioning component 40 is provided with a projection 42 which rests against the top of the electrical power storage module 14 from above, relative to the positioning component 38. The projection 42 is, for example, designed to extend in the direction (left direction of the leaf from Fig. 5) projects perpendicularly to the surface of the positioning component 40 in contact with the electrical power storage module 14. The projection 42 can be continuous along an end section of the upper surface of the electrical power storage module 14. Alternatively, a plurality of projections 42, each having a predefined length, can be spaced apart from one another at predetermined intervals. Furthermore, the projection 42 can, for example, be shown as by a dashed line in Fig.Figure 5 illustrates that the positioning element extends to a position where a lower surface of the upper cover 70 abuts. It should be noted that the other positioning elements, corresponding to positioning elements 32, 34, and 36, which are located higher than the upper surface of the electrical power storage module 14, each have a similar shape to positioning element 40. A detailed description of these elements is therefore not repeated.

[0052] In this way it is possible to limit the relative movement of the module for storing electrical power 14 relative to the housing (upper cover 70 and lower housing 12) by means of the four positioning components in addition to the horizontal direction also in the up-down direction.

[0053] Furthermore, the embodiment described above describes a case in which the electrical power storage module 14 has a rectangular shape, and the electrical power storage module 14 is not limited to a rectangular shape. In particular, the electrical power storage module 14 is not limited to a three-dimensional object whose opposing end faces are parallel to each other. Moreover, the end faces forming the electrical power storage module 14 are not limited to flat surfaces, but can also be curved surfaces.

[0054] Furthermore, in the embodiment described above, the configuration was described in which the electrical power storage module 14 is provided with the projection 15 and the positioning component 30 with the recess 31, but the electrical power storage module 14 can be provided with a recess and the positioning component 30 can be provided with a projection that can be fitted into the recess.

[0055] Furthermore, in the embodiment described above, the configuration was described in which the positioning components are formed continuously along the respective side faces of the module for storing electrical power 14, but the positioning components can be provided at a plurality of positions (e.g. two positions) along a side face that are separated by a predefined distance.

[0056] Furthermore, the embodiment described above illustrates the case in which the positioning components are formed by using, for example, resin, rubber, or similar materials. However, the positioning components can also be formed by attaching an insulating component to metal or similar materials, such as aluminum.

[0057] Furthermore, the embodiment described above describes a configuration in which the positioning components 30, 32, 34, 36 are in contact with both the lower housing 12 and the electrical power storage module 14. However, a thermally conductive material can also be applied between at least one of the positioning components 30, 32, 34, 36 and the lower housing 12. Alternatively, a thermally conductive material can be applied between at least one of the positioning components 30, 32, 34, 36 and the electrical power storage module 14.

[0058] Furthermore, the embodiment described above describes a configuration in which the side surface of the electrical power storage module 14 and the surface of the positioning component 30, which is in contact with the electrical power storage module 14, are each provided with a projection and a recess that can be joined together. However, the side surface of the electrical power storage module 14 can be provided with a plurality of projections, and the surface of the positioning component 30 in contact with the electrical power storage module 14 can be provided with a plurality of recesses into which the projections can be fitted.Alternatively, the side surface of the electrical power storage module 14 can be provided with a projection and a recess, and the surface of the positioning component 30, which is in contact with the electrical power storage module 14, can be provided with a recess into which the projection of the electrical power storage module 14 can be fitted, and with a projection that can be fitted into the recess of the electrical power storage module 14.

[0059] It should be noted that all or some of the modification examples described above can be combined as needed.

[0060] The embodiment disclosed herein is to be understood in every respect as an example and must not be construed as limiting. The scope of the present invention is shown by the claims instead of the description. The scope of the present invention is intended to include all modifications within the meaning and scope that correspond to the claims. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 4858660

[0002] JP 4858660 B

[0002]

Claims

[1] Device for storing electrical power with: a module for storing electrical power; a housing designed to contain the electrical power storage module; and a positioning component designed to abut both a side surface of the electrical power storage module and an inner wall of the housing and to limit relative movement of the electrical power storage module in the housing, wherein the positioning component is provided in a gap through which the side surface and the inner wall face each other, wherein The positioning component comprises a material with a thermal conductivity, wherein the material is deformable according to the gap. [2] Device for storing electrical power according to claim 1, wherein the positioning component comprises a first component and a second component which are provided to sandwich-like surround the electrical power storage module in a direction which is predefined and to limit the relative movement in the direction which is predefined. [3] Device for storing electrical power according to claim 1, wherein the side surface of the electrical power storage module and a surface of the positioning component which is in contact with the electrical power storage module are accordingly provided with a projection and a recess which are interchangeable. [4] Device for storing electrical power according to claim 1, wherein the housing includes a top cover and a bottom cover, and The positioning component is designed such that an upper end of the positioning component rests against the upper cover. [5] Device for storing electrical power according to claim 4, wherein the positioning component further comprises a projection which abuts an upper surface of the module for storing electrical power.

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