Shell and battery assembly

Abstract

The utility model discloses a shell and a battery assembly, and belongs to the technical field of batteries, the shell comprises a shell assembly and a first elastic piece, the shell assembly comprises a first shell and a second shell, the first shell comprises a first inner shell and a first outer shell, and the first inner shell and the first outer shell are connected and define a first slot; the second shell is partially embedded in the first slot, and the second shell and the first inner shell are movably connected and enclose to form an accommodating cavity for accommodating a battery; the first elastic piece is arranged in the first slot and connected with the first shell and the second shell, and the first elastic piece is arranged to drive the first elastic piece to generate elastic deformation when the second shell moves relative to the first inner shell. The first shell and the second shell adopt a split type plug-in structure and are matched with the elastic deformation capability of the first elastic piece, so that the battery pack can adapt to batteries with different sizes, higher flexibility is provided, the assembly requirements of the batteries with different sizes are met, and the universality is realized.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and specifically relates to a housing and a battery assembly. Background Art

[0002] The existing battery shell is made of injection molding, each battery has its own corresponding size, and the existing shell cannot accommodate and assemble batteries of different sizes. Utility Model Content

[0003] Purpose of the utility model: An embodiment of the present application provides a housing, aiming to solve the technical problem of poor versatility of current battery housings; another purpose of an embodiment of the present application is to provide a battery assembly.

[0004] Technical solution: The present application provides a housing, comprising:

[0005] A shell assembly, the shell assembly comprising a first shell and a second shell, the first shell comprising a first inner shell and a first outer shell, the first inner shell is connected to the first outer shell and forms a first slot, the second shell is partially embedded in the first slot, the second shell is movably connected to the first inner shell and forms a receiving cavity for receiving a battery;

[0006] The first elastic member is arranged in the first slot and connected to the first shell and the second shell. The first elastic member is arranged to drive the first elastic member to generate elastic deformation when the second shell moves relative to the first inner shell.

[0007] In some embodiments, the moving direction of the second shell relative to the first shell is a first direction, and the housing further comprises:

[0008] A support member, the support member is movably disposed in the accommodating cavity;

[0009] A driving assembly is disposed in the accommodating cavity, the driving assembly connects the supporting member and the shell assembly, and is used to drive the supporting member to move along a second direction, wherein the second direction intersects with the first direction.

[0010] In some embodiments, the drive assembly comprises:

[0011] a driving member, the driving member being rotatably connected to the shell assembly,

[0012] A transmission member, the transmission member connecting the support member and the driving member;

[0013] The driving member rotates relative to the shell assembly to drive the transmission member and drive the supporting member to move along the second direction.

[0014] In some embodiments, the driving member comprises:

[0015] A lead screw, the lead screw being rotatably connected to the shell assembly;

[0016] The transmission member comprises:

[0017] A slider connected to the lead screw,

[0018] A first connecting rod, the first connecting rod is rotatably connected to the slider, and the first connecting rod is also rotatably connected to the support member;

[0019] The lead screw rotates relative to the housing assembly to drive the slider to slide relative to the lead screw, and the slider can drive the first connecting rod to rotate to drive the support member to move along the second direction.

[0020] In some embodiments, the housing assembly includes a connected side wall and a bottom wall, and the drive assembly is disposed between the side wall and the support member;

[0021] The lead screw is rotatably connected to the bottom wall;

[0022] The transmission member also includes:

[0023] a second connecting rod, the second connecting rod is rotatably connected to the side wall, and a sliding groove is provided on the second connecting rod;

[0024] A sliding part is inserted into the sliding groove and slidingly cooperates with the second connecting rod. The sliding part is rotationally connected to the first connecting rod.

[0025] In some embodiments, the bottom wall of the shell assembly is further provided with a guide groove communicating with the accommodating cavity;

[0026] The housing further includes a second elastic member, the second elastic member is inserted into the guide groove and connected to the bottom wall of the accommodating cavity, and a portion of the second elastic member protrudes into the accommodating cavity.

[0027] In some embodiments, the first inner shell includes a first plate and a second plate, the first outer shell includes a third plate and a fourth plate, the second plate is disposed on a side of the first plate away from the accommodating cavity, the second plate is connected to the third plate and surrounds the first slot, and the fourth plate is disposed on a side of the third plate away from the second plate;

[0028] There is a gap between the first plate and the second plate, and between the fourth plate and the third plate.

[0029] In some embodiments, the shell component further includes a filler filled in the gap.

[0030] In some embodiments, the housing further comprises a cover assembly connected to the shell assembly, the cover assembly comprising:

[0031] A first cover plate, the first cover plate comprising a first inner cover body and a first outer cover body, the first inner cover body and the first outer cover body are spaced apart and surround a second slot;

[0032] a second cover plate, wherein the second cover plate is partially embedded in the second slot and movably connected to the first cover plate;

[0033] The first cover plate and the second cover plate jointly cover the accommodating cavity.

[0034] The present application also discloses a battery assembly, comprising a housing as described in the above embodiment, and a battery, wherein the battery is disposed in a receiving cavity of the housing.

[0035] Beneficial effect: A shell of the embodiment of the present application includes: a shell assembly, the shell assembly includes a first shell and a second shell, the first shell includes a first inner shell and a first outer shell, the first inner shell is connected to the first outer shell and encloses a first slot, the second shell is partially embedded in the first slot, the second shell is movably connected to the first inner shell and encloses to form a receiving cavity for accommodating a battery; a first elastic member, the first elastic member is arranged in the first slot and connected to the first shell and the second shell, the first elastic member is arranged to drive the first elastic member to produce elastic deformation when the second shell moves relative to the first inner shell. The first inner shell is connected to the first outer shell and encloses to form a first slot for accommodating the first elastic member, which can reduce the occupation of the internal space of the shell, and the first slot can guide the relative movement direction of the first shell and the second shell; the first shell and the second shell adopt a split plug-in structure, and cooperate with the elastic deformation ability of the first elastic member to form a receiving cavity of different space sizes to adapt to batteries of different sizes, providing greater flexibility for accommodating batteries, meeting the assembly requirements of batteries of different sizes, and achieving versatility.

[0036] The battery assembly of the embodiment of the present application includes the housing in the above embodiment, and thus can have all the technical features and technical effects of the above housing, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1This is a schematic diagram of a three-dimensional structure of a housing according to an embodiment of the present application;

[0039] Figure 2 This is a schematic diagram of the main structure of a housing according to an embodiment of the present application;

[0040] Figure 3 for Figure 2 Schematic cross-sectional view along the AA direction;

[0041] Figure 4 for Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0042] Figure 5 This is a left-side structural schematic diagram of a housing according to an embodiment of the present application;

[0043] Figure 6 for Figure 5 Schematic cross-sectional view in the CC direction;

[0044] Figure 7 This is a schematic diagram of the positional relationship between a driving component and a supporting member in a housing according to an embodiment of the present application;

[0045] 1. The shell assembly includes: 1. a first shell body; 12. a second shell body; 111. a first inner shell body; 112. a first outer shell body; 110. a first slot; 10. a receiving chamber; 2. a first elastic member; X; a first direction; 3. a supporting member; 4. a driving assembly; Y; a second direction; 41. a driving member; 42. a transmission member; 411. a lead screw; 421. a slider; 422. a first connecting rod; 13. a side wall; 14. a bottom wall; 423. a second connecting rod; 4230. a slide groove; 424. a sliding portion; 140. a guide groove; 5. a second elastic member; 1111. a first plate member; 1112. a second plate member; 1121. a third plate member; 1122. a fourth plate member; 1110. a gap; 6. a cover assembly; 61. a first cover plate; 62. a second cover plate; 611. a first inner cover body; 612. a first outer cover body; 610. a second slot. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0047] In the description of the present application, it should be understood that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically limited. The terms "first", "second", "third", etc. are only used to name the parts or embodiments with numbers for the convenience of description, and do not imply that there is an order of importance between the parts or embodiments.

[0048] It should also be noted that in the drawings of the present application specification, the arrow marked X indicates the first direction, and the arrow marked Y indicates the second direction. In the description of the present application, the first direction and the second direction are introduced to more clearly define the structure and relative position relationship of each component in the housing.

[0049] As a preface to the embodiments of the present application, the existing battery shell is made of injection molding, and shells of different sizes are made according to the size of the battery to accommodate the battery; considering that the existing battery shell has a single applicability and cannot be universal. In addition, the battery shell of the existing product is made of aluminum or magnesium alloy die-casting, which is costly and not lightweight enough.

[0050] In view of this, an embodiment of the present application provides a housing, aiming to solve at least one of the above technical problems.

[0051] See also Figures 1 to 7The present application provides a shell, comprising: a shell assembly 1 and a first elastic member 2; wherein the shell assembly 1 comprises a first shell body 11 and a second shell body 12, the first shell body 11 comprises a first inner shell body 111 and a first outer shell body 112, the first inner shell body 111 and the first outer shell body 112 are connected to form a first slot 110, the second shell body 12 is partially embedded in the first slot 110, the second shell body 12 is movably connected to the first inner shell body 111 and encloses a receiving cavity 10 for accommodating a battery; the first elastic member 2 is arranged in the first slot 110 and is connected to the first shell body 11 and the second shell body 12, the first elastic member 2 is arranged to drive the first elastic member 2 to produce elastic deformation when the second shell body 12 moves relative to the first inner shell body 111. The first shell 11 and the second shell 12 adopt a split plug-in structure, which can adapt to batteries of different sizes, providing greater flexibility to meet the assembly requirements of batteries of different sizes and realize the versatility of the shell; the first inner shell 111 is connected to the first outer shell 112 and surrounds the structure of the first slot 110. By arranging the first elastic member 2 in the first slot 110 and utilizing the elastic deformation ability of the first elastic member 2, on the one hand, the first shell 11 and the second shell 12 can be more stably connected to ensure that the shells will not slide relative to each other after the battery is assembled; on the other hand, the stretched first elastic member 2 can provide stable pressure for the battery to limit the battery in the accommodating cavity 10 to ensure the stability of the battery after assembly.

[0052] In some embodiments, see Figure 3 , Figure 6 As shown, the moving direction of the second shell 12 relative to the first shell 11 is the first direction X, and the shell further includes: a support member 3 and a driving assembly 4; wherein the support member 3 is movably arranged in the accommodating cavity 10; the driving assembly 4 is arranged in the accommodating cavity 10, the driving assembly 4 connects the support member 3 and the shell assembly 1, and the driving assembly 4 is used to drive the support member 3 to move along the second direction Y, and the second direction Y intersects with the first direction X. It should be understood that the support member 3 can be a plate or block structure, and the driving assembly 4 can adopt a telescopic cylinder or a telescopic oil cylinder. At the same time, the telescopic assembly can also adopt an electric drive mode, which will not be repeated here. The driving assembly 4 drives the support member 3 to move along the second direction Y to cooperate with the shell assembly 1 to clamp and position the battery along the second direction Y, so that the shell can adapt to batteries of different sizes, providing greater flexibility to meet the assembly requirements of batteries of different sizes and realize the versatility of the shell. The cooperation between the driving component 4 and the support member 3 can, on the one hand, maintain the stability of the battery after assembly; on the other hand, the driving component 4 drives the support member 3 to provide pressure in the second direction Y of the battery, so that the battery is clamped between the shell component 1 and the support member 3. The pressure generated by the driving component 4 on the first shell 11 and the second shell 12 can limit the relative movement of the first shell 11 and the second shell 12, further ensuring the tightness of the shell.

[0053] In some embodiments, the driving assembly 4 includes: a driving member 41 and a transmission member 42; wherein the driving member 41 is rotatably connected to the shell assembly 1, and the transmission member 42 connects the support member 3 and the driving member 41; the driving member 41 rotates relative to the shell assembly 1 to drive the transmission member 42 and drive the support member 3 to move along the second direction Y. The driving member 41 rotates relative to the shell assembly 1 to drive the transmission member 42 to drive the support member 3 to move along the second direction Y, and adopts a reversing drive method, which has a short driving path and reduces the space occupied in the accommodating cavity 10; at the same time, the rotation direction of the driving member 41 is different from the force direction of the transmission member 42, so that the driving assembly 4 drives the support member 3 more reliably; in addition, the driving member 41 adopts a rotating drive method, which can provide high-precision position control and positioning capabilities. At the same time, compared with other transmission methods (such as gear transmission), it has higher reliability, a relatively simple mechanical structure, is not prone to failure, and has relatively low maintenance costs.

[0054] It is important to understand that see Figure 7 As shown, in some embodiments, the driving member 41 includes a lead screw 411, which is rotatably connected to the housing assembly 1; the transmission member 42 includes a slider 421 and a first connecting rod 422; wherein the slider 421 is connected to the lead screw 411, the first connecting rod 422 is rotatably connected to the slider 421, and the first connecting rod 422 is also rotatably connected to the support member 3; the lead screw 411 rotates relative to the housing assembly 1 to drive the slider 421 to slide relative to the lead screw 411, and the slider 421 can drive the first connecting rod 422 to rotate to drive the support member 3 to move along the second direction Y. The slider 421 is driven to move along the path of the lead screw 411 by rotating, and the first connecting rod 422 is driven to rotate by the movement of the slider 421, so as to realize the control of the position of the support member 3 to adapt to the assembly of batteries of different sizes.

[0055] In some embodiments, the shell assembly 1 includes a connected side wall 13 and a bottom wall 14, and the driving assembly 4 is arranged between the side wall 13 and the support member 3; the screw 411 is rotatably connected to the bottom wall 14; the transmission member 42 also includes: a second connecting rod 423 and a sliding portion 424; wherein, the second connecting rod 423 is rotatably connected to the side wall 13, and a sliding groove 4230 is provided on the second connecting rod 423; the sliding portion 424 is penetrated into the sliding groove 4230, and slidably cooperates with the second connecting rod 423, and the sliding portion 424 is rotatably connected to the first connecting rod 422. By setting the second connecting rod 423 and the sliding part 424, when the slider 421 drives the first connecting rod 422 to rotate, the first connecting rod 422 forms a sliding fit with the sliding groove 4230 on the second connecting rod 423 through the sliding part 424, and the first connecting rod 422 and the sliding part 424 are rotatably connected to achieve the adjustment of the connection angle between the first connecting rod 422 and the second connecting rod 423, and finally achieve support for the support member 3, thereby improving the reliability of the battery support positioning.

[0056] In some embodiments, see Figure 6 As shown, the bottom wall 14 of the shell assembly 1 is also provided with a guide groove 140 connected to the accommodating cavity 10; the shell also includes a second elastic member 5, which is inserted into the guide groove 140 and connected to the bottom wall 14 of the accommodating cavity 10, and the second elastic member 5 partially protrudes into the accommodating cavity 10. By setting the second elastic member 5, it can play a role in buffering and absorbing impact, and reduce the impact and vibration of external forces on the battery. At the same time, the second elastic member 5 can compensate for the size difference of the battery. Through the elastic deformation of the second elastic member 5, batteries of different sizes can adapt to the shell. By setting the second elastic member 5, a good connection between the battery and the shell is ensured.

[0057] In some embodiments, see Figure 4 As shown, the first inner shell 111 includes a first plate 1111 and a second plate 1112, the first outer shell 112 includes a third plate 1121 and a fourth plate 1122, the second plate 1112 is arranged on the side of the first plate 1111 away from the accommodating cavity 10, the second plate 1112 and the third plate 1121 are connected and surround the first slot 110, and the fourth plate 1122 is arranged on the side of the third plate 1121 away from the second plate 1112; there is a gap 1110 between the first plate 1111 and the second plate 1112, and between the fourth plate 1122 and the third plate 1121. By setting the gap 1110, on the one hand, a certain expansion space can be provided to compensate for the dimensional change caused by thermal expansion. It helps to reduce the stress of the battery shell caused by temperature changes and prevent stress concentration caused by thermal expansion, thereby extending the life of the battery and improving reliability; on the other hand, the gap 1110 can prevent the shell from deforming due to external or internal pressure and avoid pressure accumulation. The gap 1110 can allow the shell to deform slightly to effectively disperse the pressure, avoid pressure accumulation in a single area, and reduce the risk of shell deformation and rupture. In addition, the gap 1110 can also play a role in sound insulation and vibration reduction to provide a quieter and smoother battery operating environment.

[0058] In some embodiments, the shell assembly 1 further includes a filler (not shown in the figure), which is filled in the gap 1110. The filler includes high-strength rubber, and the first inner shell 111 and the first outer shell 112 are made of steel plates. The high-strength rubber and the steel plates are matched to ensure that the shell has sufficient strength, and the weight is lighter than that of a simple aluminum or magnesium alloy die-cast shell, reducing the burden on electronic products.

[0059] In some embodiments, see Figure 1 And cooperate Figure 2 , Figure 3As shown, the housing further includes a cover assembly 6 connected to the shell assembly 1, and the cover assembly 6 includes: a first cover plate 61 and a second cover plate 62; wherein the first cover plate 61 includes a first inner cover body 611 and a first outer cover body 612, the first inner cover body 611 and the first outer cover body 612 are arranged at intervals and surround a second slot 610; the second cover plate 62 is partially embedded in the second slot 610 and is movably connected to the first cover plate 61; the first cover plate 61 and the second cover plate 62 jointly cover the accommodating cavity 10. The split cover assembly 6 can be changed in accordance with the size change of the shell assembly 1 to effectively cover the accommodating cavity 10.

[0060] The present application also discloses a battery assembly, including a housing as in the above embodiment, and a battery, wherein the battery is disposed in the housing cavity 10 of the housing. It is understandable that the battery assembly includes the housing in the above embodiment, and thus can have all the technical features and technical effects of the above housing, which will not be described in detail here.

[0061] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0062] The housing and battery assembly provided in the embodiments of the present application are introduced in detail above, and the principles and implementation methods of the present application are explained by using specific examples. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A housing, characterized in that: include: A shell assembly (1), the shell assembly (1) comprising a first shell (11) and a second shell (12), the first shell (11) comprising a first inner shell (111) and a first outer shell (112), the first inner shell (111) and the first outer shell (112) being connected to form a first slot (110), the second shell (12) being partially embedded in the first slot (110), the second shell (12) and the first inner shell (111) being movably connected to form a receiving cavity (10) for receiving a battery; A first elastic member (2), wherein the first elastic member (2) is arranged in the first slot (110) and is connected to the first shell (11) and the second shell (12), and the first elastic member (2) is arranged to drive the first elastic member (2) to generate elastic deformation when the second shell (12) moves relative to the first inner shell (111).

2. The housing according to claim 1, characterized in that The moving direction of the second shell (12) relative to the first shell (11) is a first direction (X), and the housing further comprises: A support member (3), the support member (3) being movably disposed in the accommodating cavity (10); A drive assembly (4) is disposed in the accommodating cavity (10), the drive assembly (4) is connected to the support member (3) and the shell assembly (1), and the drive assembly (4) is used to drive the support member (3) to move along a second direction (Y), wherein the second direction (Y) intersects with the first direction (X).

3. The housing according to claim 2, characterized in that The driving assembly (4) comprises: a driving member (41), the driving member (41) being rotatably connected to the shell assembly (1), A transmission member (42), wherein the transmission member (42) connects the support member (3) and the driving member (41); The driving member (41) rotates relative to the shell assembly (1) to drive the transmission member (42) and drive the support member (3) to move along the second direction (Y).

4. The housing according to claim 3, characterized in that The driving member (41) comprises: A lead screw (411), the lead screw (411) being rotatably connected to the shell assembly (1); The transmission member (42) comprises: A slider (421), wherein the slider (421) is connected to the lead screw (411), A first connecting rod (422), the first connecting rod (422) being rotatably connected to the sliding block (421), and the first connecting rod (422) being also rotatably connected to the supporting member (3); The lead screw (411) rotates relative to the shell assembly (1) to drive the slider (421) to slide relative to the lead screw (411), and the slider (421) can drive the first connecting rod (422) to rotate to drive the support member (3) to move along the second direction (Y).

5. The housing according to claim 4, characterized in that The shell assembly (1) comprises a side wall (13) and a bottom wall (14) connected to each other, and the drive assembly (4) is arranged between the side wall (13) and the support member (3); The lead screw (411) is rotatably connected to the bottom wall (14); The transmission member (42) further comprises: A second connecting rod (423), the second connecting rod (423) is rotatably connected to the side wall (13), and a sliding groove (4230) is provided on the second connecting rod (423); A sliding portion (424), wherein the sliding portion (424) is inserted into the sliding groove (4230) and slidingly cooperates with the second connecting rod (423), and the sliding portion (424) is rotationally connected to the first connecting rod (422).

6. The housing according to claim 1, characterized in that The bottom wall (14) of the shell assembly (1) is also provided with a guide groove (140) communicating with the accommodating cavity (10); The housing further comprises a second elastic member (5), the second elastic member (5) being inserted into the guide groove (140) and connected to the bottom wall (14) of the accommodating cavity (10), and a portion of the second elastic member (5) protrudes into the accommodating cavity (10).

7. The housing according to claim 1, characterized in that The first inner shell (111) comprises a first plate (1111) and a second plate (1112); the first outer shell (112) comprises a third plate (1121) and a fourth plate (1122); the second plate (1112) is arranged on a side of the first plate (1111) away from the accommodating cavity (10); the second plate (1112) and the third plate (1121) are connected to form the first slot (110); and the fourth plate (1122) is arranged on a side of the third plate (1121) away from the second plate (1112); There is a gap (1110) between the first plate (1111) and the second plate (1112), and between the fourth plate (1122) and the third plate (1121).

8. The housing according to claim 7, characterized in that The shell component (1) further comprises a filler, wherein the filler is filled in the gap (1110).

9. The housing according to claim 1, characterized in that The housing further comprises a cover assembly (6) connected to the shell assembly (1), wherein the cover assembly (6) comprises: A first cover plate (61), wherein the first cover plate (61) comprises a first inner cover body (611) and a first outer cover body (612), wherein the first inner cover body (611) and the first outer cover body (612) are spaced apart and surround a second slot (610); A second cover plate (62), wherein the second cover plate (62) is partially embedded in the second slot (610) and movably connected to the first cover plate (61); The first cover plate (61) and the second cover plate (62) jointly cover the accommodating cavity (10).

10. A battery assembly, characterized in that: It comprises a housing as claimed in any one of claims 1 to 9, and a battery, wherein the battery is arranged in a receiving cavity (10) of the housing.

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