Supporting and fixing assembly, battery module structure and battery pack

Abstract

The utility model relates to the technical field of batteries, and discloses a supporting and fixing assembly, a battery module structure and a battery pack. The supporting and fixing assembly is suitable for fixing a plurality of battery modules, the supporting and fixing assembly comprises a supporting bracket, the supporting bracket comprises a first bracket, the first bracket comprises a first supporting surface and a second supporting surface which are opposite in a first direction, and a first mounting structure is arranged on the first supporting surface; the first supporting surface is provided with a first mounting structure, the first mounting structure is used for fixing the first battery module on the first supporting surface, the second supporting surface is provided with a second mounting structure, the second mounting structure is used for fixing the second battery module on the second supporting surface, and the first mounting structure and the second mounting structure are arranged in a staggered manner in the first direction. When the battery module structure is placed in the shell of the battery pack, the first bracket can be connected with the battery pack, so that the overall strength of the battery pack can be ensured, and the battery module structure is simple in structure and convenient to mount.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a support and fixing component, a module structure and a battery pack. Background Technique

[0002] The space utilization rate of a battery pack with a single-layer module structure is low, and the space utilization rate in the vertical direction of a battery pack with a double-layer module structure can be effectively improved. The existing double-layer module design schemes mainly include the following: 1. Make a large bracket, install the double-layer module on the first and second layers of a cabinet-type bracket, and then install the cabinet-type bracket inside the box body. This scheme has a complex structure and a high weight, which is not conducive to controlling the cost and energy density of the battery pack. 2. The upper-layer module is directly installed on the box wall through a bracket. The overall strength of this scheme is low because the box wall is the main stress-bearing component and is prone to cause deformation of the box body during impact and vibration. 3. Use long screws to pass through the first and second layers of modules to fix the double-layer module to the bottom of the box body at the same time. The disadvantage of this scheme is that the main stress-bearing component is the long screw, which is prone to cause the screw to break during impact and vibration.

[0003] Therefore, there is an urgent need for a support and fixing component, a battery module structure and a battery pack to solve the above problems. Summary of the Utility Model

[0004] An object of the utility model is to provide a double-layer module structure, which can not only ensure the overall strength of the battery pack, but also has a simple structure and is convenient to install.

[0005] With the above concept, the technical solution adopted by the utility model is as follows:

[0006] Provide a support and fixing component suitable for fixing multiple battery modules. The support and fixing component includes a support bracket, the support bracket includes a first bracket, the first bracket includes a first support surface and a second support surface opposite to each other in a first direction, a first installation structure is arranged on the first support surface, the first installation structure is used to fix a first battery module on the first support surface, a second installation structure is arranged on the second support surface, the second installation structure is used to fix a second battery module on the second support surface, and the first installation structure and the second installation structure are arranged in a staggered manner in the first direction.

[0007] Optionally, the support and fixing component further includes a first fixing member and a second fixing member. The first installation structure includes a first hole, the first hole is arranged on the first support surface and penetrates through the first bracket, and the first bracket can be connected with the first battery module through the first fixing member penetrating through the first hole;

[0008] The second mounting structure includes a second hole which is provided on the second support surface. The first bracket can be connected to the second battery module through a second fixing member passing through the second hole. The first hole and the second hole are arranged offset in the first direction.

[0009] Optionally, a part of the second support surface is recessed toward the first support surface in the first direction to form a first platform. One end of the first hole penetrates the first support surface, and the other end penetrates the first platform. The second hole is provided on the second support surface.

[0010] Optionally, there are multiple first platforms, and the multiple first platforms are arranged at intervals in the second direction, and the first direction is perpendicular to the second direction.

[0011] Optionally, the support bracket further includes at least one second bracket, and at least one second bracket is stacked on the first bracket along the first direction;

[0012] Each second bracket includes a third support surface and a fourth support surface opposite to each other in the first direction. The third support surface is close to the second support surface, and the fourth support surface is away from the second support surface;

[0013] In the adjacent stacked first bracket and second bracket, a third mounting structure is provided on the third support surface of the second bracket, and the third mounting structure is used to fix the second bracket and the second battery module on the first bracket;

[0014] When there are two adjacent stacked second brackets in at least one second bracket, a fourth mounting structure capable of being fixedly connected is provided on the third support surface and the fourth support surface close to each other of the two second brackets, and the fourth mounting structure is used to fix the third battery module between the close third support surface and the fourth support surface;

[0015] Among all the second brackets, a fifth mounting structure is provided on the fourth support surface of the second bracket located at the farthest end of the first bracket, and the fifth mounting structure is used to fix the third battery module on the fourth support surface.

[0016] Optionally, the support fixing component further includes a reinforcing member, and the reinforcing member includes a fixed part and a connecting part connected to each other. The fixed part is provided on the first bracket, and the connecting part is used to connect with the housing of the battery pack.

[0017] Optionally, a part of the second support surface is recessed toward the first support surface in the first direction to form a first platform, and the reinforcing member is provided on the first platform.

[0018] Optionally, a first positioning pin is provided on the first bracket, and the first positioning pin is used for positioning and mating with a first positioning hole provided on the first battery module; and / or,

[0019] A second positioning hole is provided on the first bracket, and the second positioning hole is used for positioning and mating with a second positioning pin provided on the first battery module.

[0020] Another object of the present invention is to provide a battery module structure, which can not only ensure the overall strength of the battery pack, but also has a simple structure and convenient installation.

[0021] Based on the above concept, the technical solution adopted by the present invention is:

[0022] Provide a battery module structure, including a first battery module, a second battery module and the above-mentioned support and fixing components. The first mounting structure fixes the first battery module on the first support surface, and the second mounting structure fixes the second battery module on the second support surface.

[0023] Another object of the present invention is to provide a battery pack, which can not only ensure the overall strength of the battery pack, but also has a simple structure and convenient installation.

[0024] Based on the above concept, the technical solution adopted by the present invention is:

[0025] Provide a battery pack, including a housing and the above-mentioned battery module structure. The battery module structure is located inside the housing, and the battery module structure is connected to the bottom wall of the housing through the first bracket.

[0026] The beneficial effects of the present invention are:

[0027] The support and fixation assembly proposed by the present utility model is applicable to the fixation of multiple battery modules. The support and fixation assembly includes a support bracket, and the support bracket includes a first bracket. The first bracket includes a first support surface and a second support surface that are opposite in a first direction. A first installation structure is provided on the first support surface, and a second installation structure is provided on the second support surface. The first installation structure and the second installation structure are arranged in a staggered manner in the first direction. The first bracket is located between two battery modules in the first direction. The first installation structure is used to fix the first battery module located below the first bracket on the first support surface, and the second installation structure is used to fix the second battery module located above the first bracket on the second support surface. Moreover, the connection positions of the first installation structure and the first battery module and the connection positions of the second installation structure and the second battery module are staggered in the first direction. In this way, a battery module structure with a double-layer module can be formed. When this battery module structure is placed in the housing of the battery pack, the first bracket can also be connected to the first module installation beam of the battery pack. The first module installation beam is located at the bottom of the battery pack. That is, the force exerted by this battery module structure on the side wall of the battery pack is relatively small, and it is not easy to cause the deformation of the housing of the battery pack during impact and vibration. Moreover, there is no need to configure long screws, which can avoid the problem that long screws are easily broken during impact and vibration. In addition, the structure of the support bracket is simple, the cost is low, and the installation is more convenient.

[0028] The battery module structure proposed by the present utility model includes a first battery module, a second battery module, and a support and fixation assembly. The first installation structure of the support and fixation assembly fixes the first battery module on the first support surface, and the second installation structure of the support and fixation assembly fixes the second battery module on the second support surface. The support and fixation assembly of this battery module structure can not only ensure the overall strength of the battery pack, but also has a simple structure and convenient installation.

[0029] The battery pack proposed by the present utility model includes a housing and the above-mentioned battery module structure. The battery module structure is located in the housing, and the battery module structure is connected to the bottom wall of the housing through the first bracket. The support and fixation assembly of this battery pack can not only ensure the overall strength of the battery pack, but also has a simple structure and convenient installation. Description of the Drawings

[0030] Figure 1 is the assembly schematic diagram of the support and fixation assembly provided in Embodiment 1 of the present utility model, two battery modules, the first module installation beam, and the second module installation beam Figure One ;

[0031] Figure 2 is the assembly schematic diagram of the support and fixation assembly provided in Embodiment 1 of the present utility model, two battery modules, the first module installation beam, and the second module installation beam Figure Two ;

[0032] Figure 3It is a schematic exploded view of the support and fixing assembly provided in the first embodiment of the present utility model, two battery modules, the first module mounting beam, and the second module mounting beam;

[0033] Figure 4 It is a schematic structural view of the first side plate provided in the first embodiment of the present utility model;

[0034] Figure 5 It is a schematic structural view of the first type of reinforcing member provided in the first embodiment of the present utility model;

[0035] Figure 6 It is an assembly schematic view of the support and fixing assembly provided in the first embodiment of the present utility model, three battery modules, and the first module mounting beam;

[0036] Figure 7 It is a schematic structural view of the second type of reinforcing member provided in the second embodiment of the present utility model;

[0037] Figure 8 It is an assembly schematic view (including the second type of reinforcing member) of the support and fixing assembly provided in the second embodiment of the present utility model, two battery modules, and the first module mounting beam;

[0038] Figure 9 It is a partial structural schematic view of the battery pack provided in the fourth embodiment of the present utility model.

[0039] In the figure:

[0040] 1. Support bracket; 11. First bracket; 110. First side plate; 1100. First support surface; 111. First hole; 112. Connection hole; 113. First positioning pin; 1200. Second support surface; 12001. First platform; 121. Second hole; 12. Second bracket; 13. First fixing member; 14. Second fixing member;

[0041] 2. Reinforcing member; 21. First side plate; 211. First through hole; 212. Second through hole; 22. Second side plate; 23. Rib plate; 24. Installation groove; 25. Avoidance notch;

[0042] 3. First connecting member;

[0043] 10. Battery module structure; 100. Battery module end plate; 1001. Installation hole; 101. First battery module; 102. Second battery module; 103. Third battery module;

[0044] 200. Housing; 201. First module mounting beam; 202. Second module mounting beam. Detailed implementation manners

[0045] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present utility model clearer, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model are shown in the drawings rather than all of them.

[0046] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above and over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below and under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is at a lower horizontal height than the second feature.

[0048] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0049] The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

[0050] Embodiment 1

[0051] As Figures 1 to 6As shown in the figure, this embodiment provides a support and fixing component, which is applicable to the fixing of multiple battery modules. The support and fixing component includes a support bracket 1, and the support bracket 1 includes a first bracket 11. The first bracket 11 includes a first support surface 1100 and a second support surface 1200 that are opposite in the first direction. A first mounting structure is provided on the first support surface 1100, and a second mounting structure is provided on the second support surface 1200. The first mounting structure and the second mounting structure are arranged in a staggered manner in the first direction. Specifically, during implementation, the first bracket 11 is located between two battery modules in the first direction. The first mounting structure is used to fix the first battery module 101 located below the first bracket 11 on the first support surface 1100, and the second mounting structure is used to fix the second battery module 102 located above the first bracket 11 on the second support surface 1200. Moreover, the connection positions of the first mounting structure and the first battery module 101 and the connection positions of the second mounting structure and the second battery module 102 are staggered in the first direction. In this way, a battery module structure 10 with a double-layer module can be formed. When the battery module structure 10 is placed in the housing 200 of the battery pack, the first bracket 11 can also be connected to the first module mounting beam 201 of the battery pack. The first module mounting beam 201 is located at the bottom of the battery pack. That is, the battery module structure 10 exerts less force on the side wall of the battery pack, and it is not easy to cause deformation of the housing 200 of the battery pack during impact and vibration. Moreover, there is no need to configure long screws, which can avoid the problem that long screws are easily broken during impact and vibration. In addition, the structure of the support bracket 1 is simple, the cost is low, and the installation is also more convenient.

[0052] In this embodiment, the first bracket 11 includes two first side plates 110 that are arranged parallel to each other at intervals in the third direction. Each first side plate 110 includes two opposite sides in the first direction. The sides of all the first side plates facing the same direction in the first direction are located in the same plane and form the second support surface 1200, and the sides of all the first side plates facing the other direction in the first direction are located in the same plane and form the first support surface 1100. The third direction is perpendicular to the first direction.

[0053] In other embodiments, the first bracket 11 includes two first side plates 110 that are arranged parallel to each other at intervals in the third direction, and also includes two first side plates 110 that are arranged parallel to each other at intervals in the second direction. The increase in the number of first side plates 110 can further improve the connection strength between the first bracket 11 and the first battery module 101 and the second battery module 102. The second direction is perpendicular to both the first direction and the third direction.

[0054] Optionally, the support and fixing component further includes a first fixing member 13 and a second fixing member 14. The first mounting structure includes a first hole 111. The first hole 111 is provided on the first support surface 1100 and penetrates through the first bracket 11. The first bracket 11 can be connected to the first battery module 101 through the first fixing member 13 passing through the first hole 111. Since the first hole 111 penetrates through the first bracket 11, by selecting a first fixing member 13 with a predetermined length, the first fixing member 13 can pass through the first bracket 11 and the first battery module 101 to be connected to the first module mounting beam 201, thereby realizing the connection of the first bracket 11, the first battery module 101 and the housing 200 by using the first mounting structure. The second mounting structure includes a second hole 121. The second hole 121 is provided on the second support surface 1200. The first bracket 11 can be connected to the second battery module 102 through the second fixing member 14 passing through the second hole 121. The first hole 111 and the second hole 121 are arranged in a staggered manner in the first direction. The second hole 121 can be set as a threaded hole that does not penetrate through the first bracket 11, so that after the second fixing member 14 passes through the second battery module 102, it can be threadedly connected to the second hole 121 to realize the connection between the first bracket 11 and the second battery module 102.

[0055] Optionally, mounting holes 1001 are provided on both the first battery module 101 and the second battery module 102. The first fixing member 13 passes through the mounting hole 1001 on the first battery module 101, the first hole 111 on the first bracket 11 and is connected to the housing 200, while the second fixing member 14 passes through the mounting hole 1001 on the second battery module 102 and is threadedly connected into the second hole 121 on the first bracket 11. In this embodiment, the structures of the first battery module 101 and the second battery module 102 are the same. When either one of the first battery module 101 and the second battery module 102 is flipped 180°, the mounting holes 1001 on the first battery module 101 and the mounting holes 1001 on the second battery module 102 are misaligned in the first direction, that is, the structure of the battery module provided in this embodiment is such that the mounting holes 1001 are eccentrically provided on the battery module. Specifically, when implementing, if both the first battery module 101 and the second battery module 102 are square battery modules, since the square battery module includes a top surface, a bottom surface and four side surfaces, when stacking one first battery module 101 and one second battery module 102 in the first direction, the stacked state of the first battery module 101 and the second battery module 102 is that the top surface of the first battery module 101 is opposite to the bottom surface of the second battery module 102. At this time, the mounting holes 1001 of the first battery module 101 and the mounting holes 1001 of the second battery module 102 are coaxially arranged in the first direction, that is, the axes of the mounting holes 1001 of the first battery module 101 and the axes of the mounting holes 1001 of the second battery module 102 are parallel and collinear in the first direction. If the second battery module 102 is flipped 180° so that the top surface of the first battery module 101 is opposite to the top surface of the second battery module 102, then the mounting holes 1001 of the first battery module 101 and the mounting holes 1001 of the second battery module 102 are misaligned in the first direction at this time, that is, the axes of the mounting holes 1001 of the first battery module 101 and the axes of the mounting holes 1001 of the second battery module 102 are parallel and non-collinear in the first direction.

[0056] In other embodiments, it is not limited that the structures of the first battery module 101 and the second battery module 102 are the same, and it is only necessary that the mounting holes 1001 of the first battery module 101 and the mounting holes 1001 of the second battery module 102 are misaligned in the first direction.

[0057] In this embodiment, the box body of the battery module has two battery module end plates 100 oppositely arranged in the third direction, and the mounting holes 1001 of the battery module are provided on the battery module end plates 100. In other embodiments, the mounting holes 1001 can also be provided at other positions on the box body of the battery module, and the setting of the mounting holes 1001 is only used to ensure the fixation of the battery module and the support bracket 1.

[0058] Further, the second support surface 1200 is partially recessed toward the first support surface 1100 in the first direction to form a first platform 12001. One end of the first hole 111 penetrates the first support surface 1100, and the other end penetrates the first platform 12001, while the second hole 121 is provided on the second support surface 1200. In specific implementation, the first bracket 11 is located between the first battery module 101 and the second battery module 102 in the first direction. The first platform 12001 is recessed toward the first support surface 1100 relative to the second support surface 1200, which creates a gap between the first platform 12001 and the second battery module 102. During assembly, this gap can be utilized to facilitate the first fixing member 13 to pass through the first hole 111 from the first platform 12001.

[0059] Optionally, there are multiple first platforms 12001, and the multiple first platforms 12001 are spaced apart in the second direction. Preferably, at least one first hole 111 penetrates each first platform 12001, and at least one second hole 121 is provided on each second support surface 1200. Increasing the number of the first platforms 12001 and the second support surfaces 1200 can make the distribution of the connection points between the first bracket 11 and the first battery module 101 and the second battery module 102 more uniform, and can improve the connection stability between the first bracket 11 and the first battery module 101 and the second battery module 102.

[0060] In specific implementation, the interval between the second support surface 1200 and the first support surface 1100 in the first direction can be determined according to the structural dimensions of the first battery module 101 and the second battery module 102. By adjusting the interval between the second support surface 1200 and the first support surface 1100 in the first direction, a gap is created between the first battery module 101 and the second battery module 102 in the first direction, and this gap can be used to place a cold plate or a heating film.

[0061] Furthermore, as Figure 6 shown, the support bracket 1 further includes at least one second bracket 12, and the at least one second bracket 12 is stacked on the first bracket 11 in the first direction. Each second bracket 12 includes a third support surface and a fourth support surface that are opposite in the first direction. The third support surface is close to the second support surface 1200, and the fourth support surface is away from the second support surface 1200.

[0062] Among the first bracket 11 and the second bracket 12 stacked adjacent to each other, a third mounting structure is provided on the third support surface of the second bracket 12. The third mounting structure is used to fix the second bracket 12 and the second battery module 102 on the first bracket 11. In this embodiment, the support and fixation assembly further includes a third fixing member. The third mounting structure includes a third hole which is provided on the third support surface and penetrates through the second bracket 12. The third fixing member can sequentially pass through the third hole on the second bracket 12 and the mounting hole 1001 on the second battery module 102, and then be threadedly connected to the second hole 121 of the first bracket 11.

[0063] When there are two adjacent and stacked second brackets 12 in at least one second bracket 12, fourth mounting structures capable of being fixedly connected are provided on the third support surface and the fourth support surface where the two second brackets 12 are close to each other. The fourth mounting structure is used to fix the third battery module 103 on the fourth support surface. In this embodiment, the support and fixation assembly further includes a fourth fixing member. The fourth mounting structure includes a fourth through hole provided on the third support surface where the two second brackets 12 are close to each other and a fourth threaded hole on the fourth support surface. The fourth through hole penetrates through the second bracket 12 in the first direction, while the fourth threaded hole does not penetrate through the second bracket 12 in the first direction. During specific assembly, the second fixing member 14 can be sequentially passed through the fourth through hole and the mounting hole 1001 on the third battery module 103, and then be threadedly connected to the fourth threaded hole to realize the connection between the two second brackets 12 and the third battery module 103 located between the two second brackets 12.

[0064] Among all the second brackets 12, a fifth mounting structure is provided on the fourth support surface of the second bracket 12 at the outermost end of the first bracket 11. The fifth mounting structure is used to fix the third battery module 103 on the fourth support surface. In this embodiment, the support and fixation assembly further includes a fifth fixing member. The fifth mounting structure includes a fifth hole. The fifth fixing member can be passed through the mounting hole 1001 on the third battery module 103 to be connected to the fifth hole. The fifth hole can be set as a threaded hole that does not penetrate through the second bracket 12, so that after the fifth fixing member passes through the third battery module 103, it can be threadedly connected to the fifth hole to realize the connection between the outermost second bracket 12 and the topmost third battery module 103.

[0065] During specific implementation, if there are A second brackets 12, the battery module structure 10 includes A third battery modules 103, and the first battery module 101, the second battery module 102, and A third battery modules 103 are stacked in sequence from bottom to top in the first direction, while the A second brackets 12 are stacked on the first bracket 11 in the aforementioned arrangement order. A is a positive integer greater than or equal to 1.

[0066] In specific implementation, if A = 1, that is, there is one second bracket 12, then there is one third battery module 103. The first battery module 101, the first bracket 11, the second battery module 102, the second bracket 12, and the third battery module 103 are stacked in sequence from bottom to top in the first direction. In addition to using the first fixing member 13 to cooperate with the first installation structure to fix the first battery module 101 on the first support surface, the third fixing member can also be used to cooperate with the third installation structure to fix the second battery module 102 between the second support surface and the third support surface, and the fifth fixing member can also be used to cooperate with the fifth installation structure to fix the third battery module 103 on the fourth support surface.

[0067] If A = 2, that is, there are two second brackets 12, then there are two third battery modules 103. The first battery module 101, the first bracket 11, the second battery module 102, one second bracket 12, the first third battery module 103, the other second bracket 12, and the second third battery module 103 are stacked in sequence from bottom to top in the first direction. In addition to using the first fixing member 13 to cooperate with the first installation structure to fix the first battery module 101 on the first support surface, the third fixing member can also be used to cooperate with the third installation structure of one second bracket 12 to fix the second battery module 102 between the second support surface and the third support surface, the fourth fixing member can be used to cooperate with the fourth installation structure to fix the first third battery module 103 between the fourth support surface of one second bracket 12 and the third support surface of the other second bracket 12, and the fifth fixing member can also be used to cooperate with the fifth installation structure to fix the third battery module 103 on the fourth support surface of the other second bracket 12.

[0068] In this embodiment, the structure of the second bracket 12 is the same as that of the first bracket 11. The specific lengths of the first fixing member 13, the second fixing member 14, the third fixing member, the fourth fixing member, and the fifth fixing member are adaptively adjusted according to the thickness of the components they pass through in the first direction.

[0069] In this embodiment, the second bracket 12 includes two second side plates arranged at intervals and in parallel along the third direction. Each second side plate includes two opposite sides along the first direction. The sides of all the side plates facing the same direction along the first direction are located in the same plane and form the fourth support surface, and the sides of all the side plates facing the other direction along the first direction are located in the same plane and form the third support surface.

[0070] In other embodiments, the second bracket 12 includes two second side plates arranged at intervals and in parallel along the third direction, and also includes two second side plates arranged at intervals and in parallel along the second direction. The increase in the number of second side plates can further improve the connection strength between the second bracket 12 and the second battery module 102 and the third battery module 103.

[0071] Optionally, the support and fixing assembly further includes a reinforcement member 2, and the reinforcement member 2 includes a fixed portion and a connecting portion connected to each other, the fixed portion is arranged on the first bracket 11, and the connecting portion is used to connect with the battery pack housing 200. In specific implementation, the connecting portion of the reinforcement member 2 is connected to the second module mounting beam 202 on the side wall of the battery pack housing 200, that is, the battery module structure 10 formed by connecting the support and fixing assembly with multiple battery modules can be connected not only to the bottom wall of the housing 200 through the first bracket 11, but also to the side wall of the housing 200 through the reinforcement member 2, which can increase the overall structural strength of the battery module structure 10.

[0072] Alternatively, if Figure 5 As shown, the reinforcement 2 includes a reinforcement body, the reinforcement body is an L-shaped structure, the first side plate 21 of the L-shaped structure is a fixing part, the second side plate 22 of the L-shaped structure is a connecting part, the first side plate 21 is connected to the first bracket 11 through the first connecting member 3, and the second side plate 22 is connected to the second module mounting beam 202 through the second connecting member. In specific implementation, a connecting hole 112 is also provided on the first bracket 11, and a first through hole 211 corresponding to the connecting hole 112 is provided on the first side plate 21, and the first connecting member 3 is passed through the first through hole 211 and is threadedly connected to the connecting hole 112. A second through hole 212 corresponding to the first hole 111 is also provided on the first side plate 21, and the first fixing member 13 passes through the second through hole 212, the mounting hole 1001 of the first battery module 101, and the first hole 111 to connect with the first module mounting beam 201.

[0073] Optionally, a mounting groove 24 is provided on the reinforcement body, a part of the mounting groove 24 is provided on the second side plate 22, and another part of the mounting groove 24 is provided on the first side plate 21. The reinforcement body is connected to the second module mounting beam 202 through a second connecting member, and the second connecting member includes a screw and a nut, one end of the screw is provided on the second module mounting beam 202, and the other end of the screw passes through the mounting groove 24 and is connected to the nut. And because the other end of the screw needs to extend to the side of the second side plate 22 away from the second module mounting beam 202, in order to avoid interference between the screw and the reinforcement 2 when the battery module structure 10 is placed in the shell 200, the second connecting member is passed through the mounting groove 24, and the projection of the other end of the second connecting member in the first direction does not exceed the mounting groove 24.

[0074] In other embodiments, if a threaded hole is provided on the second module mounting beam 202, a through hole may be provided on the reinforcement body, and the second connecting member may be a bolt, which passes through the through hole and is connected to the threaded hole on the second module mounting beam 202, and the head of the bolt abuts against the side of the second side plate 22 away from the second module mounting beam 202. This structure can also realize the connection between the reinforcement 2 and the second module mounting beam 202.

[0075] Optionally, the reinforcement member 2 is disposed on the first platform 12001. In this embodiment, there are multiple first platforms 12001. To improve the connection strength between the reinforcement member 2 and the side wall of the housing of the battery pack, the reinforcement member 2 extends in the second direction and covers multiple first platforms 12001. Preferably, an avoidance notch 25 is provided on the reinforcement member 2, and the avoidance notch 25 is used to avoid the second support surface 1200. The avoidance notch 25 is provided on the first side plate 21.

[0076] Optionally, the reinforcement member 2 further includes rib plates 23. The rib plates 23 are disposed at both ends of the reinforcement member body along the second direction. One end of the rib plate 23 is connected to the second side plate 22, and the other end abuts against the second side plate 22. The rib plates 23 are used to enhance the strength of the reinforcement member body.

[0077] Optionally, a first positioning pin 113 is provided on the first bracket 11. The first positioning pin 113 is used for positioning and mating with a first positioning hole provided on the first battery module 101; and / or, a second positioning hole is provided on the first bracket 11. The second positioning hole is used for positioning and mating with a second positioning pin provided on the first battery module 101. That is, in specific implementation, the two mutually mating structures of the positioning hole and the positioning pin can be provided on the first bracket 11 and the first battery module 101 as required. In this embodiment, the first positioning pin 113 is provided on the first support surface 1100, and the first positioning hole is provided on the first battery module 101. Before connecting the first battery module 101 to the first bracket 11, when the first bracket 11 is placed on the first battery module 101, the first positioning pin 113 is inserted into the first positioning hole to ensure the relative position of the first bracket 11 and the first battery module 101 is fixed. In this embodiment, multiple first positioning pins 113 are provided, and the multiple first positioning pins 113 are spaced along the second direction. The structure of the first positioning pin 113 is not limited. In other embodiments, one first positioning pin 113 can also be provided, and the first positioning pin 113 is a non-cylindrical structure.

[0078] Optionally, positioning holes and positioning pins are also used for positioning and mating between the second bracket 12 and the second battery module 102 or between the second bracket 12 and the third battery module 103. That is, positioning pins and / or positioning holes are provided on the second bracket 12, and positioning holes and / or positioning pins for mating therewith are provided on the third battery module 103 and the second battery module 102.

[0079] Embodiment Two

[0080] Such as Figure 7 and Figure 8As shown in the figure, the difference between the support and fixation component provided in this embodiment and the support and fixation component in Embodiment 1 is that: the reinforcing member 2 is arranged on the first platform 12001, and a plurality of reinforcing members 2 are arranged. The plurality of reinforcing members 2 are arranged at intervals to avoid the second support surface 1200. That is, by increasing the number of the reinforcing members 2 and adaptively reducing the length of the reinforcing members 2 in the second direction, the connection strength between the reinforcing members 2 and the side wall of the housing of the battery pack can also be improved.

[0081] In addition, the rest of the structure of the support and fixation component provided in this embodiment is the same as that of the support and fixation component in Embodiment 1, and will not be described in detail here.

[0082] Embodiment 3

[0083] The battery module structure 10 provided in this embodiment includes a first battery module 101, a second battery module 102, and the support and fixation component in Embodiment 1 or Embodiment 2. The first installation structure of the support and fixation component fixes the first battery module 101 on the first support surface 1100, and the second installation structure of the support and fixation component fixes the second battery module 102 on the second support surface 1200. The battery module structure 10 can also be connected to the first module installation beam 201 at the bottom of the housing 200 of the battery pack through the first bracket 11, which can reduce the force on the side wall of the battery pack, and is not easy to cause deformation of the housing 200 of the battery pack during impact and vibration. Moreover, there is no need to configure long screws, which can avoid the problem that long screws are easy to break during impact and vibration. In addition, the structure of the support and fixation component is simple, the cost is low, and the installation is more convenient.

[0084] Optionally, the battery module structure 10 further includes A third battery modules 103, and the support and fixation component includes one first bracket 11 and A second brackets 12.

[0085] Specifically, when A = 1, that is, the third battery module 103 has one, then the second bracket 12 has one. The first battery module 101, the first bracket 11, the second battery module 102, the second bracket 12, and the third battery module 103 are stacked in sequence from bottom to top in the first direction. In addition to using the first fixing member 13 to cooperate with the first installation structure to fix the first battery module 101 on the first support surface, the third fixing member can also be used to cooperate with the third installation structure to fix the second battery module 102 between the second support surface and the third support surface, and the fifth fixing member can also be used to cooperate with the fifth installation structure to fix the third battery module 103 on the fourth support surface.

[0086] If A = 2, that is, if the third battery module 103 has two, then there are two second brackets 12. The first battery module 101, the first bracket 11, the second battery module 102, one second bracket 12, the first third battery module 103, another second bracket 12, and the second third battery module 103 are stacked in sequence from bottom to top in the first direction. In addition to using the first fixing member 13 to cooperate with the first mounting structure to fix the first battery module 101 on the first support surface, the third fixing member can also be used to cooperate with the third mounting structure of one second bracket 12 to fix the second battery module 102 between the second support surface and the third support surface. The fourth fixing member can also be used to cooperate with the fourth mounting structure to fix the first third battery module 103 between the fourth support surface of one second bracket 12 and the third support surface of another second bracket 12. The fifth fixing member can also be used to cooperate with the fifth mounting structure to fix the third battery module 103 on the fourth support surface of another second bracket 12.

[0087] Embodiment 4

[0088] As Figure 9 shown, the battery pack provided in this embodiment includes a housing 200 and the battery module structure 10 in Embodiment 3. The battery module structure 10 is located inside the housing 200, and the battery module structure 10 is connected to the bottom wall of the housing 200 through the first bracket 11 of the support fixing component.

[0089] Optionally, a first module mounting beam 201 is provided on the bottom wall of the housing 200, and the first bracket 11 of the support fixing component is connected to the first module mounting beam 201. A second module mounting beam 202 is provided on the side wall of the housing 200, and the reinforcing member 2 of the support fixing component is connected to the second module mounting beam 202, which can further enhance the overall structural strength of the battery pack.

[0090] Optionally, there are multiple battery module structures 10, and the multiple battery module structures 10 are arranged in sequence in the second direction.

[0091] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Support and fixation assembly, suitable for fixing multiple battery modules, characterized in that: The support and fixing assembly comprises a support bracket (1), wherein the support bracket (1) comprises a first bracket (11), wherein the first bracket (11) comprises a first support surface (1100) and a second support surface (1200) which are opposite to each other in a first direction, wherein a first mounting structure is arranged on the first support surface (1100), wherein the first mounting structure is used to fix a first battery module (101) on the first support surface (1100), and wherein a second mounting structure is arranged on the second support surface (1200), wherein the second mounting structure is used to fix a second battery module (102) on the second support surface (1200), wherein the first mounting structure and the second mounting structure are staggered in the first direction.

2. The supporting and fixing assembly according to claim 1, characterized in that: The supporting and fixing assembly further comprises a first fixing member (13) and a second fixing member (14); the first mounting structure comprises a first hole (111); the first hole (111) is arranged on the first supporting surface (1100) and passes through the first bracket (11); the first bracket (11) can be connected to the first battery module (101) via the first fixing member (13) passing through the first hole (111); The second mounting structure comprises a second hole (121), the second hole (121) being arranged on the second supporting surface (1200), the first bracket (11) being capable of being connected to the second battery module (102) via the second fixing member (14) penetrating through the second hole (121), and the first hole (111) and the second hole (121) being staggered in the first direction.

3. The supporting and fixing assembly according to claim 2, characterized in that: The second supporting surface (1200) is partially recessed in the first direction toward one side of the first supporting surface (1100) to form a first platform (12001); one end of the first hole (111) passes through the first supporting surface (1100), and the other end passes through the first platform (12001); the second hole (121) is arranged on the second supporting surface (1200).

4. The supporting and fixing assembly according to claim 3, characterized in that: There are multiple first platforms (12001), and the multiple first platforms (12001) are arranged at intervals in the second direction, and the first direction is perpendicular to the second direction.

5. The supporting and fixing assembly according to claim 1, characterized in that: The supporting bracket (1) further comprises at least one second bracket (12), wherein the at least one second bracket (12) is stacked on the first bracket (11) along the first direction; Each of the second brackets (12) comprises a third supporting surface and a fourth supporting surface which are opposite to each other in the first direction, the third supporting surface being close to the second supporting surface (1200) and the fourth supporting surface being far away from the second supporting surface (1200); In the first bracket (11) and the second bracket (12) which are stacked adjacently, a third mounting structure is provided on the third supporting surface of the second bracket (12), and the third mounting structure is used to fix the second bracket (12) and the second battery module (102) on the first bracket (11); When at least one of the second brackets (12) comprises two second brackets (12) stacked adjacently, a fourth mounting structure capable of being fixedly connected is provided on the third supporting surface and the fourth supporting surface adjacent to the two second brackets (12), and the fourth mounting structure is used to fix the third battery module (103) between the third supporting surface and the fourth supporting surface adjacent to each other; Among all the second brackets (12), a fifth mounting structure is provided on the fourth supporting surface of the second bracket (12) located at the farthest end of the first bracket (11), and the fifth mounting structure is used to fix the third battery module (103) on the fourth supporting surface.

6. The supporting and fixing assembly according to claim 1, characterized in that: The supporting and fixing assembly also includes a reinforcing member (2), the reinforcing member (2) including a fixing portion and a connecting portion connected to each other, the fixing portion being arranged on the first bracket (11), and the connecting portion being used to be connected to a shell (200) of the battery pack.

7. The supporting and fixing assembly according to claim 6, characterized in that: The second supporting surface (1200) is partially recessed in the first direction toward one side of the first supporting surface (1100) to form a first platform (12001), and the reinforcing member (2) is arranged on the first platform (12001).

8. The supporting and fixing assembly according to claim 1, characterized in that: A first positioning pin (113) is provided on the first bracket (11), and the first positioning pin (113) is used to be positioned and matched with a first positioning hole provided on the first battery module (101); and / or, A second positioning hole is provided on the first bracket (11), and the second positioning hole is used for positioning and cooperating with a second positioning pin provided on the first battery module (101).

9. A battery module structure, characterized in that: It comprises a first battery module (101), a second battery module (102) and a support and fixing assembly as described in any one of claims 1 to 8, wherein the first mounting structure fixes the first battery module (101) on the first supporting surface (1100), and the second mounting structure fixes the second battery module (102) on the second supporting surface (1200).

10. A battery pack, characterized in that: It comprises a shell (200) and the battery module structure (10) according to claim 9, wherein the battery module structure (10) is located inside the shell (200), and the battery module structure (10) is connected to the bottom wall of the shell (200) via the first bracket (11).

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