CN221080231U - Battery pack - Google Patents

Abstract

The present utility model provides a battery pack, comprising: the box body is provided with a containing cavity which is used for containing the battery module; the cover body is covered on the box body and is detachably connected with the box body; the first limit structure comprises a limit block, wherein the limit block is positioned on one side, close to the accommodating cavity, of the cover body and protrudes out of the end face of the cover body, the limit block extends along the length direction of the box body, and when the cover body is connected with the box body, one side, far away from the cover body, of the limit block is abutted against the top of the battery module so as to limit the displacement, along the vertical direction, of the battery module relative to the accommodating cavity. By applying the technical scheme of the utility model, the technical problem of low safety of the battery pack in the related technology can be solved.

Description

Battery pack

Technical Field

The utility model relates to the technical field of battery packs, in particular to a battery pack.

Background

With the development of scientific technology, new energy vehicles are increasingly appearing in the lives of people, and the battery pack is used as a power source of the new energy vehicles, so that the reliability of the structure is very critical.

In the related art, the battery module inside the battery pack is generally connected with the box body by adopting the end plates, when the number of the modules is large, the end plates are easily stressed too much to cause the phenomenon of fracture, so that the device is caused to produce the condition of relative sliding in the operation process, the safety of the module in operation cannot be ensured, and the use experience of a user is reduced.

Disclosure of utility model

The embodiment of the utility model provides a battery pack, which can improve the technical problem of low safety of the battery pack in the related art.

An embodiment of the present utility model provides a battery pack including: the box body is provided with a containing cavity which is used for containing the battery module; the cover body is covered on the box body and is detachably connected with the box body; the first limit structure comprises a limit block, wherein the limit block is positioned on one side, close to the accommodating cavity, of the cover body and protrudes out of the end face of the cover body, the limit block extends along the length direction of the box body, and when the cover body is connected with the box body, one side, far away from the cover body, of the limit block is abutted against the top of the battery module so as to limit the displacement, along the vertical direction, of the battery module relative to the accommodating cavity.

In an embodiment, the battery pack further comprises a fixing piece, the fixing piece is arranged on the periphery of the battery module in a surrounding mode along the length and the height direction of the box body in a fixed connection mode with the battery module, and the limiting block is abutted to one side, close to the cover body, of the fixing piece.

In an embodiment, the first limiting structure comprises a plurality of limiting blocks, the battery pack comprises a plurality of fixing pieces, the limiting blocks and the fixing pieces are distributed at intervals along the width direction of the box body, and the limiting blocks and the fixing pieces are arranged in one-to-one correspondence.

In an embodiment, the battery pack further comprises a second limiting structure, the second limiting structure is arranged between the battery module and the bottom wall of the accommodating cavity, and the second limiting structure can limit the displacement of the battery module along the width direction of the box body relative to the accommodating cavity.

In an embodiment, the second limit structure comprises a limit groove, the limit groove is arranged on the bottom wall of the accommodating cavity and extends along the length direction of the box body, the height of the bottom of the limit groove in the vertical direction is lower than that of the bottom wall of the accommodating cavity in the vertical direction, and the part of the fixing piece extending along the length direction of the box body is positioned in the limit groove.

In an embodiment, the second limiting structure comprises a plurality of limiting grooves, the battery pack comprises a plurality of fixing pieces, the limiting grooves and the fixing pieces are distributed at intervals along the width direction of the box body, and the limiting grooves and the fixing pieces are arranged in one-to-one correspondence.

In an embodiment, the battery pack further comprises an air inlet and an air outlet, the air inlet and the air outlet are respectively located on the side walls of the two sides of the box body extending along the length direction, and the air inlet and the air outlet are respectively communicated with the accommodating cavity.

In an embodiment, the battery pack further includes a heat dissipation assembly disposed at the air outlet for dissipating heat from the accommodating cavity.

In an embodiment, the battery pack comprises a plurality of air outlets, the air outlets are arranged at intervals along the length direction of the box body, and the heat dissipation assembly comprises a plurality of fans which are arranged in one-to-one correspondence with the air outlets.

In an embodiment, a plurality of first connecting holes are formed in the periphery of the cover body, a plurality of second connecting holes are formed in the periphery of the box body, the first connecting holes and the second connecting holes are arranged in one-to-one correspondence, and the fasteners penetrate through the first connecting holes and the second connecting holes to fix the cover body and the box body.

By applying the technical scheme of the utility model, the first limiting structure is arranged between the cover body and the battery module, and after the cover body is fixedly connected with the box body, the first limiting structure can prevent the battery module from being displaced along the vertical direction, so that the safety of the battery module when the battery pack is operated can be ensured, the battery pack can be stably operated, and meanwhile, the use requirement of a user can be met, so that the use experience of the user is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a battery pack according to an embodiment of the present utility model;

Fig. 2 is a perspective view illustrating another view of a battery pack according to an embodiment of the present utility model;

Fig. 3 is a schematic structural view of a battery pack according to another embodiment of the present utility model;

Fig. 4 is a schematic structural view of a cover according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the inside of the case according to the embodiment of the present utility model;

FIG. 6 is a schematic view of another view of the interior of the case provided by an embodiment of the present utility model;

figure 7 shows a schematic cross-sectional view at A-A in figure 3.

Wherein the above figures include the following reference numerals:

10. a case; 11. a receiving chamber; 12. a second connection hole;

20. A cover body; 21. a first connection hole;

31. a limiting block; 32. a limit groove;

40. a fixing member;

50. An air inlet; 60. an air outlet; 70. a fan; 80. a fastener.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

As shown in fig. 1 to 6, an embodiment of the present utility model provides a battery pack including: a case 10 having a receiving chamber 11, the receiving chamber 11 for receiving the battery module; the cover body 20 is covered on the box body 10 and is detachably connected with the box body 10; the first limit structure comprises a limit block 31, wherein the limit block 31 is located on one side, close to the accommodating cavity 11, of the cover body 20 and protrudes out of the end face of the cover body 20, the limit block 31 extends along the length direction of the box body 10, and when the cover body 20 is connected with the box body 10, one side, far away from the cover body 20, of the limit block 31 is abutted against the top of the battery module so as to limit the displacement of the battery module relative to the accommodating cavity 11 along the vertical direction.

By applying the technical scheme of the utility model, the first limit structure is arranged between the cover body 20 and the battery module, and after the cover body 20 is fixedly connected with the box body 10, the first limit structure can prevent the battery module from sliding, so that the safety of the battery module when the battery pack is operated can be ensured, the battery pack can stably operate, and meanwhile, the use requirement of a user can be met, so that the use experience of the user is improved.

As shown in fig. 4, the first limiting structure includes a limiting block 31, where the limiting block 31 is located on one side of the cover 20 close to the accommodating cavity 11 and protrudes out of the end surface of the cover 20, the limiting block 31 extends along the length direction of the box 10, and when the cover 20 is connected with the box 10, one side of the limiting block 31 far away from the cover 20 abuts against the top of the battery module to limit the battery module. The setting like this, after lid 20 and box 10 fixed connection, stopper 31 can realize the spacing to battery module, so can prevent at the operation in-process of device that battery module from appearing gliding risk. Therefore, the stable operation of the battery module can be ensured, and the device is favorable for the stability in operation.

Alternatively, the stopper 31 may be further provided to extend in the width direction of the case 10 as long as the stopper requirement of the device can be satisfied.

In the application, the limiting block 31 and the cover body 20 are integrally formed, so that the processing difficulty of the assembly is reduced, the production efficiency of the assembly is improved conveniently, and the integral structure has the advantages of high strength, compact structure and the like, so that the volume required by the cover body 20 during installation can be reduced, the stability of the integral structure of the battery pack can be ensured, and the service life of the device is prolonged.

As shown in fig. 5, the battery pack further includes a fixing member 40, the fixing member 40 is circumferentially disposed on the outer periphery of the battery module along the length and height directions of the case 10 and is fixedly connected with the battery module, and the stopper 31 abuts against one side of the fixing member 40, which is close to the cover 20. In the present application, the battery module includes a plurality of battery units, and the plurality of battery units are arranged side by side along the length direction of the case 10, and the fixing member 40 can fix the plurality of battery units, so as to prevent the problem of loosening of the battery units during the operation of the device, and meanwhile, the limiting block 31 is abutted to the fixing member 40, so that the structure of the battery module is not damaged, and the structure of the battery module can be protected, so that the service life of the battery module is prolonged.

Specifically, the first limiting structure includes a plurality of limiting blocks 31, the battery pack includes a plurality of fixing members 40, the plurality of limiting blocks 31 and the plurality of fixing members 40 are all arranged along the width direction interval of the case 10, and the limiting blocks 31 and the fixing members 40 are arranged in one-to-one correspondence. By such arrangement, the stability of the stopper 31 in limiting the battery module can be ensured, and the possibility of displacement of the battery module in the vertical direction can be prevented as much as possible.

As shown in fig. 4 and 5, in the embodiment of the present application, the number of the limiting blocks 31 and the fixing members 40 is two, so that not only the limiting and fixing requirements of the device can be met, but also the cost required for the production of the device can be correspondingly reduced, which is beneficial to realizing the mass production of the device.

Optionally, the number of the limiting blocks 31 and the fixing members 40 may not be limited, and the specific setting condition should be selected according to the usage environment of the device, so that the device can be used in different scenes, so as to improve the applicability and the application range of the device.

Further, the battery pack further comprises a second limiting structure, the second limiting structure is arranged between the battery module and the bottom wall of the accommodating cavity 11, and the second limiting structure can limit the displacement of the battery module along the width direction of the box body 10 relative to the accommodating cavity 11. The second limiting structure is arranged between the battery module and the bottom wall of the accommodating cavity 11, so that the battery module can be prevented from being displaced along the width direction of the box body 10, and the stability of the battery module can be further ensured.

As shown in fig. 6 and 7, the second limiting structure includes a limiting groove 32, the limiting groove 32 is disposed on the bottom wall of the accommodating cavity 11 and extends along the length direction of the box 10, the height of the bottom of the limiting groove 32 in the vertical direction is lower than the height of the bottom wall of the accommodating cavity 11 in the vertical direction, and the part of the fixing member 40 extending along the length direction of the box 10 is located in the limiting groove 32. Through setting up above-mentioned structure, because mounting 40 can set up in spacing groove 32, consequently at the operation in-process of device, spacing groove 32 can provide the spacing effort along box 10 width direction to mounting 40 to can avoid battery module to produce the displacement along box 10 width direction, so can further protect battery module, in order to maintain battery module's steady operation.

Specifically, the second limiting structure includes a plurality of limiting grooves 32, the battery pack includes a plurality of fixing members 40, the plurality of limiting grooves 32 and the plurality of fixing members 40 are all arranged along the width direction of the case 10 at intervals, and the limiting grooves 32 are arranged in one-to-one correspondence with the fixing members 40. This arrangement ensures the stability of the limit groove 32 in limiting the battery module, and thus prevents the possibility of displacement of the battery module in the width direction of the case 10 as much as possible.

In the embodiment of the application, the number of the limiting grooves 32 and the fixing pieces 40 is two, so that the limiting and fixing requirements of the device can be met, and the cost required by the production of the device can be correspondingly reduced, thereby being beneficial to realizing the mass production of the device.

Further, the battery pack further comprises an air inlet 50 and an air outlet 60, the air inlet 50 and the air outlet 60 are respectively located on two opposite side walls of the box 10, and the air inlet 50 and the air outlet 60 are respectively communicated with the accommodating cavity 11. So can make the direction of wind channel in holding the cavity 11 the same with the width direction of the box 10, in the application, the battery module is laid for lying on one's side, the bottom of the battery module corresponds to the air intake 50 to set up, can dispel the heat to it through the wind channel while being run in this way, in order to guarantee the battery module to run under the normal temperature.

Specifically, the battery pack further includes a heat dissipation assembly disposed at the air outlet 60 to dissipate heat from the accommodating chamber 11. Through setting up above-mentioned structure, can further improve the flow that holds the inside air of chamber 11 to improve the radiating effect of device, thereby guarantee the stability when battery module operates as far as possible.

Further, the battery pack includes a plurality of air outlets 60, the plurality of air outlets 60 are arranged at intervals along the length direction of the case 10, the heat dissipation assembly includes a plurality of fans 70, and the fans 70 are arranged in one-to-one correspondence with the air outlets 60. The structure is simple, the installation is easy, the assembly efficiency of the device can be improved, and the heat dissipation requirement of the device can be met.

Specifically, a plurality of first connection holes 21 are formed at the periphery of the cover 20, a plurality of second connection holes 12 are formed at the periphery of the case 10, the first connection holes 21 and the second connection holes 12 are arranged in one-to-one correspondence, and fasteners 80 are connected with the first connection holes 21 and the second connection holes 12 in a penetrating manner to fix the cover 20 with the case 10. In the present application, the fastening member 80 is specifically a fastening screw, and the first connecting hole 21 and the second connecting hole 12 are threaded holes, which has a simple structure and is easy to process, so that the production cost of the device can be reduced, and the cover 20 and the box 10 can be conveniently fixed, so as to ensure the tight connection between the cover 20 and the box 10.

In other embodiments of the present application, the number of the first connecting holes 21 and the second connecting holes 12 is not limited, as long as the connection requirement of the cover 20 and the case 10 can be satisfied.

By applying the technical scheme of the utility model, the first limit structure is arranged between the cover body 20 and the battery module, the second limit structure is arranged between the battery module and the bottom wall of the accommodating cavity 11, and after the cover body 20 is fixedly connected with the box body 10, the first limit structure and the second limit structure can be matched together to prevent the battery module from sliding, so that the safety of the battery module when the battery pack is operated can be ensured, the battery pack can be stably operated, and meanwhile, the use requirement of a user can be met, so that the use experience of the user is improved. Meanwhile, the battery pack further comprises a heat dissipation assembly arranged at the air outlet 60 to dissipate heat of the accommodating cavity 11. Through setting up above-mentioned structure, can further improve the flow that holds the inside air of chamber 11 to improve the radiating effect of device, thereby guarantee the stability when battery module operates as far as possible.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. A battery pack, the battery pack comprising:

A case (10) having a housing chamber (11), the housing chamber (11) being configured to house a battery module;

the cover body (20) is covered on the box body (10) and is detachably connected with the box body (10);

The first limiting structure comprises a limiting block (31), wherein the limiting block (31) is positioned on one side, close to the accommodating cavity (11), of the cover body (20) and protrudes out of the end face of the cover body (20), the limiting block (31) extends along the length direction of the box body (10), and when the cover body (20) is connected with the box body (10), one side, far away from the cover body (20), of the limiting block (31) is abutted to the top of the battery module so as to limit the displacement of the battery module relative to the accommodating cavity (11) along the vertical direction;

The battery pack further comprises a fixing piece (40), the fixing piece (40) is arranged on the periphery of the battery module in a surrounding mode along the length and height direction of the box body (10) and fixedly connected with the battery module, and the limiting block (31) is abutted to one side, close to the cover body (20), of the fixing piece (40).

2. The battery pack according to claim 1, wherein the first limiting structure comprises a plurality of limiting blocks (31), the battery pack comprises a plurality of fixing pieces (40), the limiting blocks (31) and the fixing pieces (40) are arranged at intervals along the width direction of the box body (10), and the limiting blocks (31) and the fixing pieces (40) are arranged in one-to-one correspondence.

3. The battery pack according to claim 1, further comprising a second limit structure provided between the battery module and the bottom wall of the housing chamber (11), the second limit structure being capable of restricting displacement of the battery module with respect to the housing chamber (11) in the width direction of the case (10).

4. A battery pack according to claim 3, wherein the second limit structure comprises a limit groove (32), the limit groove (32) is formed in the bottom wall of the accommodating cavity (11) and extends along the length direction of the case (10), the height of the groove bottom of the limit groove (32) in the vertical direction is lower than the height of the bottom wall of the accommodating cavity (11) in the vertical direction, and the part of the fixing member (40) extending along the length direction of the case (10) is located in the limit groove (32).

5. The battery pack according to claim 4, wherein the second limiting structure comprises a plurality of limiting grooves (32), the battery pack comprises a plurality of fixing members (40), the plurality of limiting grooves (32) and the plurality of fixing members (40) are arranged at intervals along the width direction of the case (10), and the limiting grooves (32) are arranged in one-to-one correspondence with the fixing members (40).

6. The battery pack according to any one of claims 1-5, further comprising an air inlet (50) and an air outlet (60), the air inlet (50) and the air outlet (60) being located on two opposite side walls of the case (10), respectively, the air inlet (50) and the air outlet (60) being in communication with the receiving chamber (11), respectively.

7. The battery pack according to claim 6, further comprising a heat dissipation assembly provided at the air outlet (60) to dissipate heat from the accommodating chamber (11).

8. The battery pack according to claim 7, wherein the battery pack comprises a plurality of air outlets (60), the air outlets (60) are arranged at intervals along the length direction of the box body (10), the heat dissipation assembly comprises a plurality of fans (70), and the fans (70) are arranged in one-to-one correspondence with the air outlets (60).

9. The battery pack according to claim 8, wherein a plurality of first connecting holes (21) are formed in the periphery of the cover body (20), a plurality of second connecting holes (12) are formed in the periphery of the case body (10), the first connecting holes (21) and the second connecting holes (12) are arranged in one-to-one correspondence, and fasteners (80) are connected with the first connecting holes (21) and the second connecting holes (12) in a penetrating manner so as to fix the cover body (20) with the case body (10).