Module fixing structure and battery pack

Abstract

The utility model provides a module fixing structure and a battery pack, and belongs to the technical field of batteries. The module fixing structure comprises a fixing part, a supporting frame and at least two supporting columns. Wherein the supporting frame and the fixing part are arranged in a stacked mode, and the supporting frame is located below the fixing part. At least one end of the supporting column penetrates through the fixing part, the supporting column is inserted into the supporting frame, through holes allowing the supporting column to be inserted and rotate are formed in the two ends of the supporting frame, a first groove and a second groove are formed in the inner side wall, provided with the through holes, of the supporting frame, and the supporting column rotates in the through holes and abuts against the first groove or the second groove. Therefore, the supporting columns are matched with the fixing parts with different numbers or different positions. According to the battery pack, the module fixing structures are arranged, so that the battery modules in the battery pack can be conveniently connected and fixed, and a wire or cable connection mode between the battery modules is replaced, so that the battery modules are more compact, the internal space of the battery pack is saved, and the overall performance of the battery pack is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a module fixing structure and a battery pack. BACKGROUND

[0002] With the advancement of technology and the increasing demand for renewable energy, battery modules have been widely used in many fields such as electric vehicles, renewable energy storage, consumer electronics and industrial equipment. Among them, the battery module is a system composed of multiple battery units, which is used to provide higher voltage or capacity to meet the needs of various applications.

[0003] In the battery management system (BMS), there are usually multiple sockets in the system for connecting each battery module in the battery pack. Through these sockets, the battery management system can monitor the voltage, current and temperature of each battery module. In the current battery management system, wires or cables are usually used to connect the battery modules. These wires may be single or multi-wire harnesses. However, wires occupy a large space in the battery pack, and the flexibility of wires is insufficient, and the durability is also limited, which affects the overall performance of the battery pack to some extent. UTILITY MODEL CONTENT

[0004] The present application provides a module fixing structure and a battery pack. By setting the module fixing structure, the connection and fixation between multiple battery modules in the battery pack are facilitated, and the connection mode of wires or cables between battery modules is replaced, so that the battery modules are more compact, the internal space of the battery pack is saved, and the overall performance of the battery pack is improved.

[0005] In order to achieve the above purpose, the present application provides the following technical solutions:

[0006] The first aspect of the present application provides a module fixing structure, comprising:

[0007] a fixing part;

[0008] a support frame, the support frame and the fixing part are stacked, and the support frame is located below the fixing part;

[0009] at least two support columns, at least one end of the support column is provided in the fixing part, and the support column is inserted in the support frame;

[0010] Both ends of the support frame are provided with through holes for the insertion and rotation of the support column, and the inner side wall of the through hole of the support frame is provided with a first groove and a second groove, the support column rotates in the through hole and abuts with the first groove or the second groove, so that the support column and the fixing part of different number or different position are adapted.

[0011] On the basis of the above technical solutions, the application can be further improved as follows.

[0012] In a possible implementation, a first height distance between an inner side wall formed after the first groove is opened in the support frame and a surface of the support frame towards the fixing part is H, and a second height distance between an inner side wall formed after the second groove is opened in the support frame and the surface of the support frame towards the fixing part is L.

[0013] H is greater than L.

[0014] In a possible implementation, each support column has two oppositely arranged protruding parts, which are used for being clamped in the first groove and / or the second groove during rotation of the support column.

[0015] In a possible implementation, the support frame has two oppositely arranged recessed parts on the inner side wall of the through hole, and the recessed parts correspond to the protruding parts, so that the protruding parts are inserted into the through hole through the recessed parts.

[0016] In a possible implementation, the fixing part includes a first fixing plate, and the first fixing plate and the support frame are stacked.

[0017] One end of the support column is arranged through and fixed to the first fixing plate, the other end of the support column is inserted into the through hole and clamped in the first groove, and the support column and the support frame are arranged in abutment.

[0018] In a possible implementation, the fixing part further includes a second fixing plate, and the first fixing plate, the second fixing plate and the support frame are sequentially stacked.

[0019] One end of the support column is arranged through and fixed to the first fixing plate, the other end of the support column is arranged through the second fixing plate and inserted into the through hole, so that the support column is clamped in the second groove.

[0020] In a possible implementation, a plurality of structural cavities are opened in the support frame, and the structural cavities are used for enhancing the structural strength of the support column.

[0021] The second aspect of the application provides a battery pack, which includes:

[0022] At least one first battery module and at least one second battery module are arranged side by side, one end of each first battery module and one end of each second battery module are electrically connected.

[0023] At least one end plate is arranged at both ends of the first battery module and both ends of the second battery module.

[0024] At least one module fixing structure is arranged on the end plate.

[0025] In a possible implementation, the top of the first battery module has a first flexible circuit board, and the top of the second battery module has the first flexible circuit board and a second flexible circuit board stacked.

[0026] One end of the first flexible circuit board is fixedly connected to a first fixed plate of the module fixing structure, and the other end of the first flexible circuit board has a plug-in part, and one end of the second flexible circuit board is fixedly connected to a second fixed plate of the module fixing structure.

[0027] The first fixed plate and / or the second fixed plate of the module fixing structure has a plug-in end for the plug-in part.

[0028] In a possible implementation, the plug-in part of the second battery module is plugged into the plug-in end of the first battery module, so that the first battery module and the second battery module are electrically connected.

[0029] The application provides a module fixing structure and a battery pack. The module fixing structure comprises a fixed part, a support frame and at least two support columns. The support frame and the fixed part are stacked, and the support frame is below the fixed part. At least one end of the support column penetrates the fixed part, the support column is plugged into the support frame, both ends of the support frame are provided with through holes for the support column to be plugged into and rotated, the inner side wall of the support frame is provided with a first groove and a second groove, and the support column rotates in the through hole and abuts against the first groove or the second groove, so that the support column is adapted to different numbers or different positions of the fixed part. The battery pack comprises at least one first battery module and at least one second battery module arranged side by side, at least one end plate and at least one module fixing structure. One end of each first battery module and one end of each second battery module are electrically connected, the end plate is located at both ends of the first battery module and both ends of the second battery module, and the module fixing structure is fixed to the end plate. In this way, the module fixing structure is provided, the connection and fixation between the plurality of battery modules in the battery pack are facilitated, and the connection mode of the wires or cables between the battery modules is replaced, so that the battery modules are more compact, the internal space of the battery pack is saved, and the overall performance of the battery pack is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the application or the prior art. Obviously, the drawings in the following description are only some of the embodiments of the application, and these drawings and the description are not intended to limit the scope of the concept of the application in any way, but to illustrate the concept of the application to those skilled in the art by referring to specific embodiments. Those skilled in the art can also obtain other drawings without creative labor on the basis of these drawings.

[0031] Figure 1 A structural schematic diagram of a first battery module in a battery pack according to an embodiment of the present application is provided.

[0032] Figure 2 A structural schematic diagram of a second battery module in a battery pack according to an embodiment of the present application is provided.

[0033] Figure 3 A structural schematic diagram of a support column and a support frame connected in a module fixing structure according to an embodiment of the present application is provided.

[0034] Figure 4 A structural schematic diagram of a support frame in a module fixing structure according to an embodiment of the present application is provided.

[0035] Figure 5 A structural schematic diagram of a support frame in a module fixing structure according to an embodiment of the present application is provided.

[0036] Figure 6 A structural schematic diagram of a support frame in a module fixing structure according to an embodiment of the present application is provided.

[0037] Figure 7 A structural schematic diagram of a support column in a module fixing structure according to an embodiment of the present application is provided.

[0038] Explanation of Reference Signs:

[0039] 100 - module fixing structure

[0040] 200 - fixing part; 210 - first fixing plate; 220 - second fixing plate; 230 - plug-in end

[0041] 300 - support frame; 310 - through hole; 320 - first recess; 330 - second recess; 340 - recessed part; 350 - structural cavity; 360 - platform part; 370 - limiting part

[0042] 400 - support column; 410 - protruding part; 420 - first support part; 430 - second support part

[0043] 500 - battery pack

[0044] 600 - first battery module; 610 - first flexible circuit board; 620 - plug-in part

[0045] 700 - second battery module; 710 - second flexible circuit board

[0046] 800 - end plate DETAILED DESCRIPTION

[0047] As described in the background, in a battery management system, generally, a plurality of sockets are provided in the system for connecting each battery module in a battery pack. Through these sockets, the battery management system can monitor the voltage, current and temperature of each battery module. In the current battery management system, wires or cables are usually used to connect the battery modules, and these wires can be single or multi-wire harnesses. However, the wires occupy a large space in the battery pack, and the flexibility of the wires is insufficient, and the durability is also limited, thereby affecting the integrity of the battery pack to some extent.

[0048] To solve the above technical problems, the embodiment of the present application provides a module fixing structure and a battery pack. The module fixing structure comprises a fixing part, a support frame and at least two support columns. The support frame and the fixing part are stacked, and the support frame is below the fixing part. At least one end of the support column is provided in the fixing part, and the support column is inserted into the support frame. The support frame has two ends with through holes for the support column to be inserted and rotated. The inner side wall of the through hole of the support frame is provided with a first groove and a second groove. The support column rotates in the through hole and abuts against the first groove or the second groove, so that the support column and the fixing part with different numbers or different positions are matched. The battery pack comprises at least one first battery module and at least one second battery module arranged side by side, at least one end plate and at least one module fixing structure. One end of each first battery module and one end of each second battery module are electrically connected. The end plate is located at both ends of the first battery module and both ends of the second battery module. The module fixing structure is fixed to the end plate. In this way, the module fixing structure is provided to facilitate the connection and fixation between the plurality of battery modules in the battery pack, and replaces the connection mode of wires or cables between the battery modules, so that the battery modules are more compact, the internal space of the battery pack is saved, and the overall performance of the battery pack is improved.

[0049] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0050] The embodiment of the present application provides a module fixing structure and a battery pack. The module fixing structure is arranged, the connection and fixation between a plurality of battery modules in the battery pack are facilitated, and the connection mode of wires or cables between the battery modules is replaced, so that the battery modules are more compact, the internal space of the battery pack is saved, and the overall performance of the battery pack is improved. The specific structure of the module fixing structure and the battery pack provided by the embodiment of the present application will be introduced below with reference to the drawings.

[0051] Reference Figure 1 And Figure 2 The first aspect of the embodiment of the present application provides a module fixing structure 100. The module fixing structure 100 can include a fixing part 200, a support frame 300 and a support column 400. The support frame 300 and the fixing part 200 can be stacked in the height direction, and the support frame 300 can be located below the fixing part 200. In a possible implementation, the number of support columns 400 can be at least two, and the number of support columns 400 is not limited herein. In the embodiment of the present application, the number of support columns 400 is taken as two for example, and the two support columns 400 can be located at the two ends of the support frame 300 in the length direction. In a possible implementation, one end of the support column 400 can be provided through and fixed to the fixing part 200, and the other end of the support column 400 can be inserted into the support frame 300, so that the fixing part 200 and the support frame 300 can be fixedly connected through the support column 400. In another possible implementation, one end of the support column 400 can be provided through the fixing part 200, and the one end of the support column 400 provided through the fixing part 200 can be further inserted into the support frame 300, so that the fixing part 200 and the support frame 300 can be fixedly connected through the support column 400. The fixing mode between the support column 400 and the support frame 300 is not limited herein.

[0052] In the specific implementation of the embodiment, as shown in Figure 3 And Figure 4 The two ends of the support frame 300 can be provided with through holes 310 corresponding to the support columns 400, and the number of through holes 310 can also be two. It can be understood that the through holes 310 can be inserted and rotated by the support columns 400. In a possible implementation, referring to Figure 5 And Figure 6, the inner side wall of the through hole 310 of the support frame 300 can be provided with a first recess 320 and a second recess 330 respectively. In this way, when the support column 400 is inserted into the through hole 310, the support column 400 can rotate in the through hole 310 until it abuts against the first recess 320 or the second recess 330, so that the support column 400 can be adapted to different numbers of fixing parts 200, or the support column 400 can be adapted to fixing parts 200 at different positions, so that the module fixing structure 100 can be compatible with different forms of fixing.

[0053] With reference to Figure 7 On the basis of the above embodiments, in a possible implementation, the support column 400 can be a cylindrical structure. The support column 400 can include a first support part 420 at both ends and a second support part 430 at the middle part. It can be understood that the diameter of the first support part 420 is smaller than the diameter of the second support part 430, so as to facilitate the insertion of the first support part 420 into the fixing part 200 and the insertion of the support frame 300.

[0054] With reference to Figure 5 On the basis of the above embodiments, the height of the inner side wall of the support frame 300 provided with the first recess 320 can be lower than the height of the inner side wall of the support frame 300 provided with the second recess 330. It can be understood that the first height distance H between the inner side wall formed after the support frame 300 is provided with the first recess 320 and the surface of the support frame 300 facing the fixing part 200 is greater than the second height distance L between the inner side wall formed after the support frame 300 is provided with the second recess 330 and the surface of the support frame 300 facing the fixing part 200, so that the first recess 320 and the second recess 330 have a certain height difference, so as to form a stepped structure. In a possible implementation, as shown in FIG. 4, the height of the inner side wall of the support frame 300 provided with the first recess 320 is lower than the height of the inner side wall of the support frame 300 provided with the second recess 330. Figure 1 and Figure 2As shown, when the support column 400 is rotated to the first groove 320 so that the support column 400 and the support frame 300 are clamped, the support column 400 and the support frame 300 are in close contact at this time, and the support column 400 and the support frame 300 are arranged without gaps in the height direction, that is, the fixing portion 200 at this time can be a single-layer structure. In another possible implementation, when the support column 400 is rotated to the second groove 330 so that the support column 400 and the support frame 300 are clamped, the support column 400 at this time is away from the plane between the first support portion 420 and the second support portion 430 at one end of the support frame 300 and the side of the support frame 300 facing the support column 400 has a certain gap in the height direction, and another layer of the fixing portion 200 can be arranged at the gap, that is, the fixing portion 200 at this time can be a double-layer structure. In this way, the support column 400 is clamped between the first groove 320 or the second groove 330, so that the support column 400 can be adapted to the fixing portion 200 of the single-layer structure or the fixing portion 200 of the multi-layer structure, and has good universal performance.

[0055] With reference to the foregoing Figure 7 On the basis of the foregoing embodiment, the outer surface of each support column 400 can have a protruding portion 410. In one possible implementation, the number of protruding portions 410 can be at least two, and the number of protruding portions 410 is not limited herein. In the embodiment of the present application, the number of protruding portions 410 is taken as two for example, and the two protruding portions 410 can be oppositely arranged. It can be understood that the protruding portion 410 can correspond to the recessed portion 340, so that the protruding portion 410 can be inserted into the through hole 310 through the recessed portion 340. Figure 4 As shown, the protruding portion 410 can be located on the first support portion 420 at one end facing the support frame 300, and the protruding portion 410 can be used to clamp the first groove 320 or the second groove 330 during rotation of the support column 400, thereby facilitating installation and fixation of the support column 400.

[0056] With reference to the foregoing Figure 4 On the basis of the foregoing embodiment, further, the inner side wall of the support frame 300 having the through hole 310 is further provided with a recessed portion 340. In one possible implementation, the number of recessed portions 340 can be at least two, and the number of recessed portions 340 is not limited herein. In the embodiment of the present application, the number of recessed portions 340 is taken as two for example, and the two recessed portions 340 can be oppositely arranged. It can be understood that the recessed portion 340 can correspond to the protruding portion 410, so that the protruding portion 410 can be inserted into the through hole 310 through the recessed portion 340. In this way, the protruding portion 410 on the support column 400 can be inserted into the through hole 310 along the recessed portion 340 on the inner side wall of the support frame 300, so that the support column 400 is clamped with the first groove 320 or the second groove 330 by rotating the support column 400.

[0057] Continue to refer to Figure 5 as well as Figure 6 Furthermore, based on the above embodiments, both the first groove 320 and the second groove 330 may include a platform portion 360 and a limiting portion 370 protruding from the platform portion 360. The limiting portion 370 may be located at both ends of the platform portion 360 in the first groove 320, or at one end of the platform portion 360 in the second groove 330. Thus, when the protrusion 410 engages with the first groove 320, the side of the protrusion 410 facing the first groove 320 can contact the platform portion 360 of the first groove 320, while the limiting portion 370 can be located on both sides of the protrusion 410. This prevents the supporting column 400 from rotating circumferentially and disengaging from the first groove 320 while the protrusion 410 and the first groove 320 are engaged. Correspondingly, when the protrusion 410 and the second groove 330 are engaged, the side of the protrusion 410 facing the second groove 330 can contact the platform portion 360 of the second groove 330, and the stepped surface and the limiting portion 370 between the first groove 320 and the second groove 330 can be located on both sides of the protrusion 410, so that the limiting portion 370 can prevent the support column 400 from rotating circumferentially and thus disengaging from the second groove 330 when the protrusion 410 and the second groove 330 are engaged.

[0058] Continue to refer to Figure 1 Based on the above embodiments, the fixing part 200 may include a first fixing plate 210. The first fixing plate 210 and the support frame 300 may be stacked in the height direction. In one possible implementation, combined with... Figure 6 as well as Figure 7 As can be seen, one of the first support portions 420 of the support column 400 can be inserted and fixed to the first fixing plate 210, while the other first support portion 420 of the support column 400 can be inserted into the through hole 310. By rotating the support column 400, the protrusion 410 of the support column 400 and the two limiting portions 370 of the first groove 320 are engaged. At this time, the support column 400 and the support frame 300 are closely fitted, and the support column 400 and the support frame 300 are set without gaps in the height direction, which facilitates a more stable connection and fixation of the support column 400.

[0059] Continue to refer to Figure 2 In another possible implementation, the fixing part 200 may further include a second fixing plate 220. The first fixing plate 210, the second fixing plate 220, and the support frame 300 may be stacked sequentially in the height direction. In one possible implementation, combined with... Figure 6 as well as Figure 7As shown in FIG. 4, the first support portion 420 at both ends of the support column 400 can be respectively penetrated and fixed to the first fixing plate 210 and the second fixing plate 220, and the first support portion 420 penetrated in the second fixing plate 220 is further inserted into the through hole 310, and the convex portion 410 of the support column 400 is clamped with the limiting portion 370 of the second groove 330 and the stepped surface between the first groove 320 and the second groove 330 by rotating the support column 400. At this time, the support column 400 and the support frame 300 have a certain gap in the height direction, and it can be understood that the second fixing plate 220 can be located at the gap, so that the first fixing plate 210, the second fixing plate 220 and the support frame 300 are sequentially stacked in the height direction. It can be understood that in the embodiment of the application, two recesses (not shown in the figure) can be provided on the second fixing plate 220 for the convex portion 410 to penetrate. The recesses on the second fixing plate 220 correspond to the recessed portions 340 on the support frame 300, so that the support column 400 is penetrated in the second fixing plate 220 and further inserted into the support frame 300.

[0060] With reference to the above Figure 3 and Figure 4 On the basis of the above-mentioned embodiment, a structure cavity 350 can be provided on the side of the support frame 300 facing the fixing portion 200. The number of structure cavities 350 can be several, and the number of structure cavities 350 is not limited in the application. In the embodiment of the application, the structure cavity 350 can be used to enhance the structural strength of the support frame 300. In addition, by providing the structure cavity 350 on the support frame 300, the amount of material used can be reduced, thereby reducing the overall weight of the battery module.

[0061] With reference to the above Figure 1 and Figure 2 The second aspect of the embodiment of the application provides a battery pack 500. In some embodiments of the application, the battery pack 500 can include a plurality of stacked battery modules formed by grouping a plurality of battery cell units, or the battery pack 500 can include a plurality of battery packs directly formed by grouping a plurality of battery cell units. It can be understood that the battery pack 500 can be applied to the fields of energy storage, battery replacement, power and the like.

[0062] With reference to the above Figure 1 and Figure 2On the basis of the above-mentioned embodiments, the battery pack 500 provided by the embodiments of the present application can include the first battery module 600, the second battery module 700, the end plate 800, and at least one module fixing structure 100. In one possible implementation, the number of the first battery module 600 and the second battery module 700 can be at least one, and the number of the first battery module 600 and the second battery module 700 is not limited herein. In the embodiments of the present application, the number of the first battery module 600 and the second battery module 700 is taken as two for example, and the two first battery modules 600 and the two second battery modules 700 are arranged side by side in the battery pack 500, and one end of each first battery module 600 can be electrically connected to one end of the second battery module 700.

[0063] With reference to the above Figure 1 And Figure 2 On the basis of the above-mentioned embodiments, in one possible implementation, the number of the end plate 800 can be at least one, and the number of the end plate 800 is not limited herein. In the embodiments of the present application, two end plates 800 can be respectively located at two ends of the first battery module 600, and correspondingly, the other two end plates 800 can be located at two ends of the second battery module 700. In one possible implementation, the module fixing structure 100 can be fixed to one side of the end plate 800 in the height direction, so that the module fixing structure 100 is also located at one end of the first battery module 600 and one end of the second battery module 700. It can be understood that the module fixing structure 100 can be fixed in different forms according to different requirements of the battery pack 500.

[0064] With reference to the above Figure 1 On the basis of the above-mentioned embodiments, the top of the first battery module 600 can have a first flexible circuit board 610. The first flexible circuit board 610 can be laid in the length direction of the entire first battery module 600. In one possible implementation, one end of the first flexible circuit board 610 is fixedly connected to the first fixed plate 210 of the module fixing structure 100, the first fixed plate 210 of the module fixing structure 100 has a plug-in end 230, the plug-in end 230 can be electrically connected to the first flexible circuit board 610, and the other end of the first flexible circuit board 610 can have a plug-in portion 620. It can be understood that the plug-in portion 620 can be inserted into the plug-in end 230, thereby facilitating the electrical connection between the battery modules.

[0065] With reference to the above Figure 2On the basis of the above embodiment, the top of the second battery module 700 can have the first flexible circuit board 610 and the second flexible circuit board 710 arranged in a stack. The first flexible circuit board 610 and the second flexible circuit board 710 can both be laid in the length direction of the entire second battery module 700, and the first flexible circuit board 610 is located above the second flexible circuit board 710. In a possible implementation, one end of the first flexible circuit board 610 is fixedly connected to the first fixed plate 210 of the module fixed structure 100, the first fixed plate 210 of the module fixed structure 100 has a plug-in end 230, the plug-in end 230 can be electrically connected to the first flexible circuit board 610, and the other end of the first flexible circuit board 610 can have a plug-in part 620. It can be understood that the plug-in part 620 can be inserted into the plug-in end 230, thereby facilitating the electrical connection between the battery modules. One end of the second flexible circuit board 710 is fixedly connected to the second fixed plate 220 of the module fixed structure 100, and the second fixed plate 220 of the module fixed structure 100 has a plug-in end 230, which can be electrically connected to the second flexible circuit board 710.

[0066] With reference to the above embodiment, the plug-in part 620 of the first flexible circuit board 610 in the second battery module 700 can be inserted into the plug-in end 230 on the first fixed plate 210 in the module fixed structure 100 of the first battery module 600, thereby electrically connecting the first battery module 600 and the second battery module 700. In this way, the first flexible circuit board 610 in the first battery module 600 can be electrically connected to the first flexible circuit board 610 in the second battery module 700 through plug-in connection, thereby facilitating the connection of the first battery module 600 and the socket in the battery management system. Figure 1 Figure 2 It can be understood that in the embodiment of the present application, the fixed part 200 in the module connection structure of the first battery module 600 can be a single-layer structure, and the fixed part 200 in the module connection structure of the second battery module 700 can be a double-layer structure. In this way, the first flexible circuit board 610 in the first battery module 600 can transmit electrical signals through the first flexible circuit board 610 in the second battery module 700, thereby replacing the connection mode of the wire or cable in the related art. The flexible circuit board occupies a small space in the battery pack 500, has high flexibility, and has high durability.

[0067] It can be understood that in the embodiment of the present application, the fixed part 200 in the module connection structure of the first battery module 600 can be a single-layer structure, and the fixed part 200 in the module connection structure of the second battery module 700 can be a double-layer structure. In this way, the first flexible circuit board 610 in the first battery module 600 can transmit electrical signals through the first flexible circuit board 610 in the second battery module 700, thereby replacing the connection mode of the wire or cable in the related art. The flexible circuit board occupies a small space in the battery pack 500, has high flexibility, and has high durability.

[0068] ​In the embodiment of the present application, the module fixing structure 100 is arranged, so as to facilitate the connection and fixing between the plurality of battery modules in the battery pack 500, and replace the connection mode of the wires or cables between the battery modules, thereby making the battery modules more compact, saving the internal space of the battery pack 500, and improving the overall performance of the battery pack 500.

[0069] The embodiments or implementations in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be mutually referred to.

[0070] It should be noted that the terms such as "in a specific implementation", "in some embodiments", "in the present embodiment", "exemplarily" and the like in the specification mean that the described embodiments can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in combination with other embodiments which are explicitly or implicitly described.

[0071] Generally, the terms should be understood at least partly by the use in the context. For example, at least partly according to the context, the term "one or more" used in the specification can be used to describe any feature, structure or characteristic in the singular sense, or can be used to describe a combination of features, structures or characteristics in the plural sense. Similarly, at least partly according to the context, the terms such as "a" or "said" can be understood to convey the singular usage or the plural usage.

[0072] It should be easily understood that "on", "above" and "over" in the present disclosure should be interpreted in the broadest way, so that "on" not only means "directly on", but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over", but also can include the meaning of "above" or "over" without intermediate features or layers therebetween (i.e., directly on).

[0073] In addition, spatial relative terms such as "below", "under", "below", "above", "over" and the like can be used in the specification for the purpose of description, to describe the relationship of one element or feature to other elements or features as shown in the drawings. The spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device can have other orientations (rotated 90 degrees or in other orientations), and the spatial relative terms used in the specification can also be interpreted accordingly.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by 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 module fixing structure characterized by comprising: The application relates to a module fixing structure. The module fixing structure comprises at least one fixing part, a support frame, at least two support columns, and a first height distance and a second height distance. The support frame and the fixing part are arranged in layers, and the support frame is located below the fixing part. At least one end of the support column penetrates the fixing part, and the support column is inserted into the support frame. Two ends of the support frame are provided with through holes for allowing the support column to be inserted and rotated, and the inner side wall of the through hole is provided with a first groove and a second groove.

2. The module fixing structure according to claim 1, characterized by The support column is rotated in the through hole and abuts against the first groove or the second groove, so that the support column is matched with different numbers or different positions of the fixing part. The first height distance between the inner side wall formed after the first groove is arranged in the support frame and the surface of the support frame towards the fixing part is H, and the second height distance between the inner side wall formed after the second groove is arranged in the support frame and the surface of the support frame towards the fixing part is L.

3. The module fixing structure according to claim 2, characterized by The first height distance H is greater than the second height distance L.

4. The module fixing structure according to claim 3, characterized in that, Each support column is provided with two oppositely arranged convex parts which are used for clamping the first groove or the second groove during rotation of the support column.

5. The module fixing structure according to claim 4, wherein The inner side wall of the through hole of the support frame is further provided with two oppositely arranged recesses which correspond to the convex parts, so that the convex parts are inserted into the through hole through the recesses. The fixing part comprises a first fixing plate which is arranged in layers with the support frame.

6. The module fixing structure according to claim 5, wherein One end of the support column penetrates and is fixed to the first fixing plate, and the other end of the support column is inserted into the through hole and clamped with the first groove, and the support column is arranged in close contact with the support frame. The fixing part further comprises a second fixing plate, and the first fixing plate, the second fixing plate and the support frame are arranged in layers in sequence.

7. The module fixing structure according to claim 6, wherein One end of the support column penetrates and is fixed to the first fixing plate, and the other end of the support column penetrates the second fixing plate and is inserted into the through hole, so that the support column is clamped with the second groove.

8. A battery pack, characterized by, A plurality of structure cavities are arranged on the support frame, and the structure cavities are used for enhancing the structural strength of the support column. The application relates to a module fixing structure. The module fixing structure comprises at least one first battery module and at least one second battery module which are arranged in parallel, one end of each first battery module and one end of each second battery module are electrically connected, at least one end plate is arranged at two ends of the first battery module and two ends of the second battery module, and at least one module fixing structure is arranged on the end plate. The top of the first battery module is provided with a first flexible circuit board, and the top of the second battery module is provided with a first flexible circuit board and a second flexible circuit board which are arranged in layers.

9. The battery pack of claim 8, wherein, One end of the first flexible circuit board is fixedly connected to a first fixing plate of the module fixing structure, the other end of the first flexible circuit board is provided with a plug-in part, and one end of the second flexible circuit board is fixedly connected to a second fixing plate of the module fixing structure. ​ The first fixed plate and / or the second fixed plate of the module fixed structure has a plug-in end for the plug-in part.

10. The battery pack of claim 9, wherein, The plug-in part of the second battery module is plugged into the plug-in end of the first battery module, so that the first battery module and the second battery module are electrically connected.

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