Power battery pack

Abstract

The invention relates to the technical field of power batteries, in particular to a power battery pack. The power battery pack comprises a battery module, a mounting mechanism and a plurality of bearing mechanisms, the battery module comprises a plurality of battery monomers arranged in sequence, each battery monomer is provided with an electrode end, the mounting mechanism comprises a base and a plurality of electric sheet connecting pieces, the plurality of electric sheet connecting pieces are arranged on the base at intervals, the plurality of bearing mechanisms are arranged on the base at intervals, and the plurality of bearing mechanisms are arranged on the base at intervals. Each bearing mechanism comprises a mounting assembly, a driving assembly and a bearing frame, the mounting assemblies are arranged on the base, the driving assemblies are arranged on the mounting assemblies, and the driving assemblies can drive the bearing frames to move relative to the mounting assemblies, so that the electrode ends of the battery monomers supported by the bearing frames are in contact conduction with or separated from the corresponding electric sheet connecting pieces; and the driving assembly can also drive the bearing frame to support the battery monomers to turn upwards relative to the mounting assembly. The power battery pack is simple in structure, complex steps such as wiring and winding are avoided, and the working efficiency of mounting and dismounting is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power batteries, and in particular to a power battery pack. Background Art

[0002] The power battery pack is a key component of the car. The current power battery pack is installed by modularizing the battery group into battery modules. The battery box is formed by bending, welding, splicing or stamping of sheet metal. The sheet metal box carries multiple battery modules to form a power battery pack. When using a sheet metal box to carry multiple battery modules, the following problems will occur:

[0003] (1) When a battery cell in a battery module is abnormal and needs to be repaired and replaced, the entire battery module needs to be taken out. Since the entire battery module is bonded to the bottom of the box with structural adhesive, the entire power battery pack needs to be replaced, which greatly reduces the efficiency of the replacement work;

[0004] (2) The internal circuit of the box is complex, which makes the wiring harness inside the power battery pack messy. It is necessary to perform corresponding wiring and winding steps inside the power battery pack, which makes the operation complicated and increases the difficulty of installation.

[0005] Therefore, there is an urgent need for a power battery pack to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a power battery pack, so as to avoid complicated steps such as wiring and winding, improve the work efficiency of installing and disassembling the power battery pack, and have a simple structure.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A power battery pack, comprising:

[0009] A battery module, wherein the battery module comprises a plurality of battery cells arranged in sequence, and each of the battery cells is provided with an electrode terminal;

[0010] A mounting mechanism, the mounting mechanism comprising a base and a plurality of electrical chip connectors, the plurality of electrical chip connectors being arranged at intervals on the base, the electrode terminal on each battery cell being able to contact and conduct with the corresponding electrical chip connector; and

[0011] A plurality of supporting mechanisms are provided at intervals on the base, each of the supporting mechanisms comprises a mounting assembly, a driving assembly and a supporting frame, the mounting assembly is provided on the base, the driving assembly is provided on the mounting assembly, the supporting frame supports the battery cell, the output end of the driving assembly is transmission-connected with the supporting frame, the driving assembly can drive the supporting frame to move relative to the mounting assembly so that the electrode end of the battery cell supported by the supporting frame is in contact with or separated from the corresponding electrical connector, and the driving assembly can also drive the supporting frame to support the battery cell to flip upward relative to the mounting assembly.

[0012] As an optional solution, the driving assembly includes a first linear driving member, a second linear driving member and a transmission member, the first linear driving member and the second linear driving member are both arranged on the mounting assembly, the first linear driving member and the second linear driving member are arranged relatively spaced apart along the moving direction of the carrier, and the first linear driving member and the second linear driving member are both transmission-connected to the carrier through the transmission member;

[0013] The driving assembly has a first driving mode and a second driving mode. When the driving assembly is in the first driving mode, the first linear driving member and the second linear driving member drive the transmission member to move in the same direction so that the transmission member drives the carrier to move; when the driving assembly is in the second driving mode, one of the first linear driving member and the second linear driving member stops driving, and the other drives the transmission member to move toward the one that stops driving, so that the transmission member drives the carrier to flip upward.

[0014] As an optional solution, the transmission member includes:

[0015] A first connecting block connected to an output end of the first linear driving member;

[0016] a second connecting block connected to an output end of the second linear driving member;

[0017] a transmission connecting rod, a first end of which is rotatably connected to the first connecting block; and

[0018] A transmission block, wherein the first end of the transmission block is fixedly connected to the bottom of the support frame, the second end of the transmission block is rotatably connected to the second end of the transmission connecting rod, and the third end of the transmission block is rotatably connected to the second connecting block.

[0019] As an optional solution, the drive assembly further includes:

[0020] A guide rod, wherein the guide rod is fixedly connected to the mounting assembly, the guide rod extends along the moving direction of the supporting frame, and the first connecting block and the second connecting block are both slidably sleeved on the guide rod.

[0021] As an optional solution, the support frame includes a vertically connected support base plate and an abutment side plate, the support base plate supports the battery cell, the support base plate is transmission-connected to the output end of the drive assembly, and the abutment side plate abuts against the side wall of the battery cell.

[0022] As an optional solution, the power battery pack further includes a buffer mechanism, and the buffer mechanism includes:

[0023] a buffer substrate, the buffer substrate being detachably mounted on the base; and

[0024] A plurality of buffer protection frames are arranged at intervals on the buffer substrate, and a buffer protection frame is arranged around the periphery of each battery cell.

[0025] As an optional solution, the electric chip connector includes an electric chip mounting plate, an electric chip carrier plate and an elastic member, the electric chip mounting plate is elastically connected to the base through the elastic member, the electric chip mounting plate is provided with the electric chip carrier plate, the electric chip carrier plate is provided with a conductive electric chip, and the conductive electric chip is in contact and conductive with the electrode terminal on the corresponding battery cell;

[0026] The buffer protection frame includes a support bar and a buffer frame, the support bar is arranged on the buffer substrate, the buffer frame is slidably arranged on the support bar, the buffer frame is arranged around the outer periphery of the battery cell, and the buffer frame can move relative to the support bar in a direction close to the electric chip connector and abut against the electric chip carrier plate under the action of external force to push the electric chip mounting plate to move in a direction away from the battery cell.

[0027] As an optional solution, the buffer frame includes:

[0028] A buffer frame, the buffer frame is slidably connected to the support bar;

[0029] A protection bar is fixedly connected to the buffer frame, the protection bar is arranged around the periphery of the battery cell, and the protection bar can abut against the electric sheet carrier plate.

[0030] As an optional solution, the buffer frame further includes:

[0031] A buffer bar is connected to the buffer frame.

[0032] As an optional solution, the buffer protection frame also includes:

[0033] A limit member is provided on the support bar, and the limit member can abut against the buffer frame to limit the limit position of the buffer frame moving relative to the support bar in a direction close to the electrical chip connector.

[0034] Beneficial effects of the present invention:

[0035] The present invention provides a power battery pack, which arranges a plurality of electric sheet connectors at intervals on a base, so that the electrode end on each battery cell in a battery module can be in contact with the corresponding electric sheet connector to achieve conduction, thereby achieving conduction operation of each battery cell, avoiding complex steps such as wiring and winding, making the structure simple and convenient to operate. In addition, when it is necessary to replace the battery cell in the battery module, the driving component drives the carrier to move relative to the mounting component, so that the electrode end of the battery cell supported by the carrier is separated from the corresponding electric sheet connector, thereby achieving the power-off operation of replacing the battery cell, and then the driving component drives the carrier to support the battery cell to flip upward relative to the mounting component, so that the power-off battery cell is flipped out of the battery module, so as to facilitate the removal of the power-off battery cell; when it is necessary to install the battery cell, the driving component first drives the carrier to support the battery cell to flip and reset relative to the mounting component, and then the driving component drives the carrier to move and reset relative to the mounting component, so that the electrode end of the battery cell supported by the carrier is in contact with the corresponding electric sheet connector, which greatly improves the work efficiency of installing and removing the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a first structural exploded view of a power battery pack provided by an embodiment of the present invention;

[0037] Figure 2 is a first structural schematic diagram of a power battery pack provided by an embodiment of the present invention;

[0038] Figure 3 is a structural schematic diagram of a bearing mechanism provided by an embodiment of the present invention;

[0039] Figure 4 is a second structural schematic diagram of a power battery pack provided by an embodiment of the present invention;

[0040] Figure 5 is a second structural exploded view of a power battery pack provided by an embodiment of the present invention;

[0041] Figure 6 yes Figure 5 A magnified view of the structure at center;

[0042] Figure 7 It is a schematic structural diagram of a buffer protection frame provided in an embodiment of the present invention.

[0043] In the figure:

[0044] 1. Battery module; 11. Battery cell; 111. Electrode end;

[0045] 2. Installation mechanism; 21. Base; 211. Base body; 212. Front seat for wiring; 2121. Wiring notch; 213. Rear seat for wiring; 22. Electrical chip connector; 221. Electrical chip mounting plate; 222. Electrical chip carrier plate; 2221. Conductive electrical chip; 223. Elastic member;

[0046] 3. Carrying mechanism; 31. Mounting assembly; 32. Driving assembly; 321. First linear driving member; 322. Second linear driving member; 323. Transmission member; 3231. First connecting block; 3232. Second connecting block; 3233. Transmission connecting rod; 3234. Transmission block; 324. Guide rod; 33. Carrying frame; 331. Carrying bottom plate; 332. Abutting side plate;

[0047] 4. Buffer mechanism; 41. Buffer substrate; 42. Buffer protection frame; 421. Support bar; 422. Buffer frame; 4221. Buffer frame; 4222. Protection bar; 4223. Buffer bar; 423. Limiting member; 43. Connecting bolt. DETAILED DESCRIPTION

[0048] In order to make the technical problem solved by the present invention, the technical solution adopted and the technical effect achieved more clearly, the technical solution of the present invention is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0049] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0052] like Figure 1 to Figure 3 As shown, this embodiment provides a power battery pack, which includes a battery module 1, a mounting mechanism 2 and a plurality of supporting mechanisms 3, wherein the battery module 1 includes a plurality of battery cells 11 arranged in sequence, each battery cell 11 is provided with an electrode terminal 111, the mounting mechanism 2 includes a base 21 and a plurality of electric sheet connectors 22, the plurality of electric sheet connectors 22 are arranged at intervals on the base 21, the electrode terminal 111 on each battery cell 11 can be in contact with and conduct with the corresponding electric sheet connector 22, the plurality of supporting mechanisms 3 are arranged at intervals on the base 21, and each supporting mechanism 3 is It includes an installation component 31, a driving component 32 and a supporting frame 33. The installation component 31 is arranged on the base 21, the driving component 32 is arranged on the installation component 31, the supporting frame 33 supports the battery cell 11, and the output end of the driving component 32 is transmission-connected with the supporting frame 33. The driving component 32 can drive the supporting frame 33 to move relative to the installation component 31 so that the electrode end 111 of the battery cell 11 supported by the supporting frame 33 is in contact with or separated from the corresponding electrode connector 22. The driving component 32 can also drive the supporting frame 33 to support the battery cell 11 to flip upward relative to the installation component 31.

[0053] The power battery pack provided in this embodiment arranges a plurality of electrical connectors 22 at intervals on the base 21 so that the electrode ends 111 on each battery cell 11 in the battery module 1 can be in contact with and conducted with the corresponding electrical connectors 22, thereby achieving conduction operation of each battery cell 11 and avoiding complex steps such as wiring and winding, making the structure simple and easy to operate. In addition, when it is necessary to replace the battery cell 11 in the battery module 1, the driving component 32 drives the supporting frame 33 to move relative to the mounting component 31, so that the electrode end 111 of the battery cell 11 supported by the supporting frame 33 is separated from the corresponding electrical sheet connector 22, thereby realizing the power-off operation of replacing the battery cell 11, and then the driving component 32 drives the supporting frame 33 to support the battery cell 11 to flip upward relative to the mounting component 31, thereby flipping the powered-off battery cell 11 out of the battery module 1, so as to facilitate the removal of the powered-off battery cell 11; when it is necessary to install the battery cell 11, the driving component 32 first drives the supporting frame 33 to support the battery cell 11 to flip and reset relative to the mounting component 31, and then the driving component 32 drives the supporting frame 33 to move and reset relative to the mounting component 31, so that the electrode end 111 of the battery cell 11 supported by the supporting frame 33 is in contact and conductive with the corresponding electrical sheet connector 22, thereby greatly improving the work efficiency of installing and removing the battery cell 11.

[0054] It should be noted that in this embodiment, the multiple battery cells 11 in the battery module 1 are arranged in sequence along the left-right direction in the figure. In this embodiment, the driving component 32 can drive the carrier 33 to move relative to the mounting component 31 along the front-back direction in the figure.

[0055] In this embodiment, if Figure 1 and Figure 2 As shown, the base 21 includes a base body 211, a wiring front seat 212 and a wiring rear seat 213, wherein the wiring front seat 212 and the wiring rear seat 213 are arranged at intervals along the front-to-back direction, the wiring front seat 212 and the wiring rear seat 213 are both fixedly arranged on the base body 211, and the wiring front seat 212 is located at the front side of the wiring rear seat 213, and a plurality of electrical sheet connectors 22 arranged at intervals along the left-to-right direction are arranged on the wiring front seat 212, and a plurality of supporting mechanisms 3 are arranged in sequence along the left-to-right direction, and each supporting mechanism 3 is arranged between the wiring front seat 212 and the wiring rear seat 213. Specifically, in this embodiment, the mounting assembly 31 is fixedly connected between the front wiring seat 212 and the rear wiring seat 213. When the driving assembly 32 drives the supporting frame 33 to support the battery cell 11 to move backward relative to the mounting assembly 31, the electrode end 111 of the battery cell 11 supported by the supporting frame 33 is separated from the corresponding electrical sheet connector 22. When the driving assembly 32 drives the supporting frame 33 to support the battery cell 11 to move forward relative to the mounting assembly 31, the electrode end 111 of the battery cell 11 supported by the supporting frame 33 is in contact and conductive with the corresponding electrical sheet connector 22.

[0056] Optionally, in this embodiment, if Figure 1 and Figure 2 As shown, a plurality of wiring slots 2121 are arranged at intervals along the left-right direction on the wiring front seat 212. The wiring slots 2121 serve as external connection ports of the circuit and can be assembled with the circuits on the vehicle body.

[0057] In this embodiment, if Figure 3 As shown, the driving component 32 includes a first linear driving member 321, a second linear driving member 322 and a transmission member 323, wherein the first linear driving member 321 and the second linear driving member 322 are both arranged on the mounting component 31, and the first linear driving member 321 and the second linear driving member 322 are arranged relatively spaced apart along the moving direction of the supporting frame 33 (the front-to-back direction in the figure), and both the first linear driving member 321 and the second linear driving member 322 are connected to the supporting frame 33 through the transmission member 323; the driving component 32 has a first driving mode and a second driving mode, when the driving component 32 is in the first driving mode, the first linear driving member 321 and the second linear driving member 322 drive the transmission member 323 to move in the same direction, so that the transmission member 323 drives the supporting frame 33 to move; when the driving component 32 is in the second driving mode, one of the first linear driving member 321 and the second linear driving member 322 stops driving, and the other of the two drives the transmission member 323 to move toward the one close to the stopped driving, so that the transmission member 323 drives the supporting frame 33 to flip upward. The structural design of the driving assembly 32 ensures that the driving assembly 32 has two different driving modes, thereby meeting the driving requirements of the carrier 33. Optionally, in this embodiment, the first linear driving member 321 and the second linear driving member 322 are both electric telescopic rods, and in other embodiments, the first linear driving member 321 and the second linear driving member 322 may also be linear cylinders.

[0058] Optionally, in the present embodiment, when it is necessary to replace the battery cell 11 in the battery module 1, the driving component 32 is first placed in the first driving mode, so that the first linear driving member 321 extends backward and the second linear driving member 322 retracts backward. At this time, the first linear driving member 321 and the second linear driving member 322 simultaneously drive the transmission member 323 to move backward, so that the transmission member 323 drives the supporting frame 33 to support the electrode end 111 of the battery cell 11 to separate from the corresponding electrode connector 22, thereby realizing the power-off operation for replacing the battery cell 11. Then the driving component 32 is placed in the second driving mode, so that the first linear driving member 321 stops driving and the second linear driving member 322 extends forward, so that the second linear driving member 322 drives the transmission member 323 forward. At this time, the front end of the transmission member 323 cannot move, and the transmission member 323 can drive the supporting frame 33 to support the battery cell 11 to flip upward toward the rear side. When the support frame 33 needs to flip and reset the supported battery cell 11, the first linear drive member 321 extends backwards and the second linear drive member 322 stops. When the flipped and reset battery cell 11 needs to be moved and reset, the first linear drive member 321 retracts forwards and the second linear drive member 322 extends forwards synchronously.

[0059] Optionally, in this embodiment, if Figure 3 As shown, the transmission member 323 includes a first connecting block 3231, a second connecting block 3232, a transmission connecting rod 3233 and a transmission block 3234, wherein the first connecting block 3231 is connected to the output end of the first linear driving member 321, the second connecting block 3232 is connected to the output end of the second linear driving member 322, the first end of the transmission connecting rod 3233 is rotatably connected to the first connecting block 3231, the first end of the transmission block 3234 is fixedly connected to the bottom of the support frame 33, the second end of the transmission block 3234 is rotatably connected to the second end of the transmission connecting rod 3233, and the third end of the transmission block 3234 is rotatably connected to the second connecting block 3232. When the first linear driving member 321 stops driving and the second linear driving member 322 extends forward, the first connecting block 3231 stops moving and the second connecting block 3232 moves forward, so that the transmission connecting rod 3233 and the transmission block 3234 rotate accordingly, so that the transmission connecting rod 3233 and the transmission block 3234 pull the carrier 33 upward and flip toward the rear side. The structural design of the transmission member 323 makes the structure of the transmission member 323 simple and also ensures the reliability of the transmission work of the transmission member 323.

[0060] Optionally, in this embodiment, if Figure 3As shown, the driving assembly 32 further includes a guide rod 324, which is fixedly connected to the mounting assembly 31, and extends along the moving direction of the carrier 33 (the front-to-back direction in the figure), and both the first connecting block 3231 and the second connecting block 3232 are slidably sleeved on the guide rod 324. By providing the guide rod 324, it is possible to provide guidance for the movement of the first connecting block 3231 and the second connecting block 3232 along the front-to-back direction, thereby ensuring the reliability of the transmission member 323 in transmission. In addition, by providing the guide rod 324 for guidance, the structure is simple.

[0061] In this embodiment, if Figure 3 As shown, the support frame 33 includes a vertically connected support base plate 331 and abutment side plates 332, wherein the support base plate 331 supports the battery cell 11, the bottom of the support base plate 331 is fixedly connected to the first end of the transmission block 3234, and the abutment side plates 332 abut against the side walls of the battery cell 11. The structural design of the support frame 33 effectively ensures the stability and reliability of supporting the battery cell 11. Specifically, in this embodiment, the abutment side plates 332 abut against the rear side walls of the battery cell 11.

[0062] In this embodiment, if Figure 4 and Figure 5 As shown, the power battery pack also includes a buffer mechanism 4, which includes a buffer substrate 41 and a plurality of buffer protection frames 42, wherein the buffer substrate 41 is detachably mounted on the base 21, and a plurality of buffer protection frames 42 are arranged at intervals on the buffer substrate 41, and a buffer protection frame 42 is arranged around the periphery of each battery cell 11. By providing the buffer mechanism 4, a buffer protection frame 42 is arranged around the periphery of each battery cell 11, thereby avoiding extrusion damage to the battery cell 11 under the action of external force impact, providing an effective buffer protection effect for the battery cell 11 when it is impacted, and improving the safety of the battery module 1. It should be noted that in this embodiment, a plurality of buffer protection frames 42 are arranged at intervals on the buffer substrate 41 along the left-right direction.

[0063] In addition, it should be noted that when the battery cell 11 in the battery module 1 needs to be replaced, the buffer substrate 41 is removed from the base 21 , and then the support frame 33 supports the replaced battery cell 11 to perform corresponding movement and flipping motion.

[0064] In this embodiment, if Figure 4 and Figure 5 As shown, the buffer mechanism 4 further includes a connecting bolt 43, and the buffer base plate 41 is detachably fixed to the wiring rear seat 213 on the base 21 through the connecting bolt 43. The above arrangement makes the installation and removal of the buffer mechanism 4 on the wiring rear seat 213 more convenient and has a simple structure.

[0065] Optionally, in this embodiment, if Figure 6 and Figure 7 As shown, the electric chip connector 22 includes an electric chip mounting plate 221, an electric chip carrier plate 222 and an elastic member 223. The electric chip mounting plate 221 is elastically connected to the base 21 through the elastic member 223. The electric chip mounting plate 221 is provided with an electric chip carrier plate 222. The electric chip carrier plate 222 is provided with a conductive electric chip 2221. The conductive electric chip 2221 is in contact with and conductive to the electrode terminal 111 on the corresponding battery cell 11. The buffer protection frame 42 includes a support bar 421 and a buffer frame 422. The support bar 421 is provided on the buffer substrate 41. The buffer frame 422 is slidably provided on the support bar 421. The buffer frame 422 is arranged around the periphery of the battery cell 11, and the buffer frame 422 can move relative to the support bar 421 in a direction close to the electric chip connector 22 (i.e. forward) under the action of external force and abut against the electric chip carrier plate 222 to push the electric chip mounting plate 221 to move in a direction away from the battery cell 11. The above arrangement enables the buffer frame 422 to move forward relative to the support bar 421 when the buffer frame 422 is impacted by an external force, so as to push the electric sheet mounting plate 221 to move away from the battery cell 11, so that the conductive electric sheet 2221 is separated from the electrode terminal 111 on the corresponding battery cell 11, thereby realizing the power-off operation of the battery cell 11, avoiding the explosion and fire accidents caused by the battery cell 11 being still in the conductive state during the impact, and improving the safety of the battery module 1. When the impact force of the external force disappears, under the elastic force of the elastic member 223, the electric sheet mounting plate 221 can be reset, and the electric sheet carrier plate 222 can push the buffer frame 422 to slide relative to the support bar 421 to reset, so as to ensure that the conductive electric sheet 2221 is in contact with the electrode terminal 111 on the corresponding battery cell 11 again. Optionally, in this embodiment, the elastic member 223 can be a spring, the first end of the spring is connected to the electric sheet mounting plate 221, and the second end of the spring is connected to the wiring front seat 212 of the base 21.

[0066] Alternatively, if Figure 7 As shown, the buffer frame 422 includes a buffer frame 4221 and a protective bar 4222, wherein the buffer frame 4221 is slidably connected to the support bar 421, the protective bar 4222 is fixedly connected to the buffer frame 4221, the protective bar 4222 is arranged around the periphery of the battery cell 11, and the protective bar 4222 can abut against the electric sheet carrier plate 222. By designing the buffer frame 422 into the structure of the buffer frame 4221 and the protective bar 4222, not only the protection effect on the battery cell 11 is guaranteed, but also the buffering effect of the entire buffer frame 422 is guaranteed.

[0067] Optionally, in this embodiment, the protective bar 4222 is L-shaped, and the protective bar 4222 is arranged on the top of the corresponding battery cell 11 and the front side of the battery cell 11. The buffer frame 4221 is located at the rear side of the battery cell 11, effectively ensuring the protection effect on the battery cell 11 in all directions.

[0068] Optionally, in this embodiment, if Figure 7 As shown, the buffer frame 422 also includes a buffer strip 4223, and the buffer strip 4223 is connected to the buffer frame 4221. By connecting the buffer strip 4223 in the inner cavity of the buffer frame 4221, the buffer protection effect of the buffer frame 422 is further guaranteed. Optionally, in this embodiment, the buffer strip 4223 can be made of rubber material to ensure the buffer effect of the entire buffer frame 422.

[0069] In this embodiment, if Figure 7 As shown, the buffer protection frame 42 also includes a limiter 423, which is arranged on the support bar 421. The limiter 423 can abut against the buffer frame 422 to limit the limit position of the buffer frame 422 moving relative to the support bar 421 in the direction close to the electric chip connector 22. By providing the limiter 423, it is prevented that the protective bar 4222 in the buffer frame 422 excessively squeezes the electric chip connector 22 forward. Optionally, in this embodiment, the limiter 423 can be designed as an elastic limiter, which not only ensures the buffering effect of the buffer protection frame 42, but also facilitates the sliding reset of the buffer frame 422. Specifically, in this embodiment, the limiter 423 can abut against the front side of the buffer frame 4221.

[0070] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A power battery pack, characterized in that: include: A battery module (1), the battery module (1) comprising a plurality of battery cells (11) arranged in sequence, each of the battery cells (11) being provided with an electrode terminal (111); A mounting mechanism (2), the mounting mechanism (2) comprising a base (21) and a plurality of electrical chip connectors (22), the plurality of electrical chip connectors (22) being arranged at intervals on the base (21), and the electrode end (111) on each battery cell (11) being able to contact and conduct with a corresponding electrical chip connector (22); as well as A plurality of bearing mechanisms (3) are arranged at intervals on the base (21); each of the bearing mechanisms (3) comprises a mounting assembly (31), a driving assembly (32) and a bearing frame (33); the mounting assembly (31) is arranged on the base (21); the driving assembly (32) is arranged on the mounting assembly (31); the bearing frame (33) supports the battery monomer (11); the output end of the driving assembly (32) is transmission-connected to the bearing frame (33); the driving assembly (32) can drive the bearing frame (33) to move relative to the mounting assembly (31) so that the electrode end (111) of the battery monomer (11) supported by the bearing frame (33) is in contact with or separated from the corresponding electrical sheet connector (22); the driving assembly (32) can also drive the bearing frame (33) to support the battery monomer (11) to flip upward relative to the mounting assembly (31).

2. The power battery pack according to claim 1, characterized in that: The driving assembly (32) comprises a first linear driving member (321), a second linear driving member (322) and a transmission member (323); the first linear driving member (321) and the second linear driving member (322) are both arranged on the mounting assembly (31); the first linear driving member (321) and the second linear driving member (322) are arranged relatively spaced apart along the moving direction of the supporting frame (33); and the first linear driving member (321) and the second linear driving member (322) are both connected to the supporting frame (33) through the transmission member (323); The driving assembly (32) has a first driving mode and a second driving mode. When the driving assembly (32) is in the first driving mode, the first linear driving member (321) and the second linear driving member (322) drive the transmission member (323) to move in the same direction, so that the transmission member (323) drives the support frame (33) to move; when the driving assembly (32) is in the second driving mode, one of the first linear driving member (321) and the second linear driving member (322) stops driving, and the other drives the transmission member (323) to move toward the one that stops driving, so that the transmission member (323) drives the support frame (33) to flip upward.

3. The power battery pack according to claim 2, characterized in that: The transmission member (323) comprises: A first connecting block (3231) connected to an output end of the first linear driving member (321); A second connecting block (3232) connected to an output end of the second linear driving member (322); a transmission connecting rod (3233), a first end of the transmission connecting rod (3233) being rotatably connected to the first connecting block (3231); and A transmission block (3234), wherein a first end of the transmission block (3234) is fixedly connected to the bottom of the support frame (33), a second end of the transmission block (3234) is rotatably connected to the second end of the transmission connecting rod (3233), and a third end of the transmission block (3234) is rotatably connected to the second connecting block (3232).

4. The power battery pack according to claim 3, characterized in that: The drive assembly (32) further comprises: A guide rod (324), wherein the guide rod (324) is fixedly connected to the mounting assembly (31), the guide rod (324) extends along the moving direction of the supporting frame (33), and the first connecting block (3231) and the second connecting block (3232) are both slidably mounted on the guide rod (324).

5. The power battery pack according to any one of claims 1 to 4, characterized in that: The carrier frame (33) comprises a vertically connected carrier base plate (331) and an abutting side plate (332); the carrier base plate (331) supports the battery cell (11); the carrier base plate (331) is transmission-connected to the output end of the driving assembly (32); and the abutting side plate (332) abuts against the side wall of the battery cell (11).

6. The power battery pack according to any one of claims 1 to 4, characterized in that: The power battery pack further comprises a buffer mechanism (4), wherein the buffer mechanism (4) comprises: a buffer substrate (41), the buffer substrate (41) being detachably mounted on the base (21); and A plurality of buffer protection frames (42) are arranged at intervals on the buffer substrate (41), and a buffer protection frame (42) is arranged around the periphery of each battery cell (11).

7. The power battery pack according to claim 6, characterized in that: The electric chip connector (22) comprises an electric chip mounting plate (221), an electric chip carrier plate (222) and an elastic member (223); the electric chip mounting plate (221) is elastically connected to the base (21) via the elastic member (223); the electric chip mounting plate (221) is provided with the electric chip carrier plate (222); the electric chip carrier plate (222) is provided with a conductive electric chip (2221); the conductive electric chip (2221) is in contact and conduction with the electrode terminal (111) on the corresponding battery cell (11); The buffer protection frame (42) comprises a support bar (421) and a buffer frame (422), wherein the support bar (421) is arranged on the buffer substrate (41), and the buffer frame (422) is slidably arranged on the support bar (421). The buffer frame (422) is arranged around the periphery of the battery cell (11), and the buffer frame (422) can move relative to the support bar (421) in a direction close to the electric chip connector (22) and abut against the electric chip carrier plate (222) under the action of an external force, so as to push the electric chip mounting plate (221) to move in a direction away from the battery cell (11).

8. The power battery pack according to claim 7, characterized in that: The buffer frame (422) comprises: A buffer frame (4221), wherein the buffer frame (4221) is slidably connected to the support bar (421); A protective bar (4222) is fixedly connected to the buffer frame (4221); the protective bar (4222) is arranged around the periphery of the battery cell (11); and the protective bar (4222) can abut against the electric sheet carrier plate (222).

9. The power battery pack according to claim 8, characterized in that: The buffer frame (422) further includes: A buffer bar (4223), wherein the buffer bar (4223) is connected to the buffer frame (4221).

10. The power battery pack according to claim 7, characterized in that: The buffer protection frame (42) also includes: A limit member (423), wherein the limit member (423) is arranged on the support bar (421), and the limit member (423) can abut against the buffer frame (422) to limit the limit position of the buffer frame (422) moving relative to the support bar (421) in a direction close to the electrical chip connector (22).

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