Battery cell positioning jig

Abstract

The utility model relates to the technical field of battery production equipment, in particular to a battery cell positioning jig. The battery cell positioning jig comprises a base, a first positioning unit and a second positioning unit, the base is used for supporting a battery cell, the first positioning unit can press the battery cell on the base so as to position the battery cell on the base, and the second positioning unit can position and clamp the preset position of a BMU at the end of the battery cell. Positioning and clamping the position of the BMU, which is provided with the soft board; the mounting positions of the first positioning unit and the second positioning unit on the base can be adjusted so as to adapt to battery cell products with different models and different sizes; therefore, the battery cell positioning jig can be compatible with battery cell products of different models and different sizes, positioning of the battery cell products of different models and different sizes is achieved, the product remodeling cost is reduced, and the product remodeling efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of battery production equipment technology, and in particular to a cell positioning fixture. Background Technology

[0002] In the lithium battery production process, it is usually necessary to use jigs to position the battery cells, and at the same time, it is necessary to position the flexible circuit board on the hard board of the BMU (Battery Management Unit) at the end of the battery cell to prevent the flexible circuit board from wrinkling, deforming or tearing due to stretching during processing.

[0003] However, current cell fixtures are not compatible with different product models. When switching products, due to differences in product structure and size, it is often necessary to replace the fixture and readjust the product, resulting in high product changeover costs. Utility Model Content

[0004] The purpose of this utility model is to provide a battery cell positioning fixture that is compatible with different models of products.

[0005] This utility model provides a battery cell positioning fixture, including a base, a first positioning unit, and a second positioning unit;

[0006] The base is used to place the battery cell. The first positioning unit and the second positioning unit are located on both sides of the base, and the side of the battery cell with the BMU faces the second positioning unit.

[0007] Both the first positioning unit and the second positioning unit are movable relative to the base, so that the first positioning unit presses the battery cell onto the base, and the second positioning unit clamps the BMU at a predetermined position.

[0008] Furthermore, the first positioning unit includes a first support, a first clamping member, and a first driving assembly;

[0009] The first support is movably placed on the base along a first direction, the first direction being the width direction of the battery cell on the base; the first clamping member is located on the side of the base for placing the battery cell; the first clamping member is slidably connected to the first support along a second direction, the second direction being the thickness direction of the battery cell on the base.

[0010] The first drive assembly is mounted on the first support, and the first clamping member is connected to the first drive assembly. The first clamping member can move under the drive of the first drive assembly to press the battery cell onto the base.

[0011] Furthermore, the first drive assembly includes a drive rod and a first elastic element;

[0012] The base is provided with a first mounting hole, the drive rod is arranged along the second direction, and one end of the drive rod is movably inserted into the first mounting hole along the first direction and the second direction;

[0013] The other end of the drive rod is connected to the first clamping member. The first elastic member is sleeved on the drive rod. One end of the first elastic member is connected to the first clamping member, and the other end of the first elastic member is connected to the first support. The elastic force of the first elastic member causes the first clamping member to have a tendency to move closer to the base.

[0014] Furthermore, the base is provided with a second mounting hole;

[0015] The first support is placed on the base, and the first support is provided with a limiting protrusion, which is movably inserted into the second mounting hole along the first direction.

[0016] Furthermore, the first support is provided with a first locking component, the first locking component including a locking member, the locking member being slidably disposed on the first support via a slide block;

[0017] The base is provided with a plurality of locking holes spaced apart along the first direction. The movement of the first support can make the locking member face any of the locking holes. The movement of the slide can make the locking member insert into or retract from the locking hole.

[0018] The first locking assembly further includes a second elastic element, one end of which abuts against the slide block and the other end of which abuts against the first support. The elastic force of the second elastic element causes the locking member to have a tendency to insert into the locking hole.

[0019] Furthermore, the second positioning unit includes a second support, a support member, a second clamping member, and a second drive assembly;

[0020] The second support is slidably disposed on the base along the first direction, which is the width direction of the battery cell on the base. The support member is fixed on the second support member, and one side of the support member in the second direction forms a support surface for supporting the BMU. The second direction is the thickness direction of the battery cell on the base.

[0021] The second drive assembly is disposed on the second support and is connected to the second clamping member. The second clamping member can press against the support surface of the support member for supporting the BMU under the drive of the second drive assembly.

[0022] Furthermore, the second drive component includes a third elastic element;

[0023] The second clamping member is disposed on one side of the third direction of the support member. The second support is provided with a mounting seat. One end of the second clamping member in the second direction is rotatably connected to the mounting seat through a rotating shaft. The rotating shaft is arranged along the first direction. The other end of the second clamping member in the second direction forms a pressure head. The pressure head is opposite to the support surface of the support member.

[0024] One end of the third elastic element is connected to the second clamping element, and the other end of the third elastic element is connected to the mounting base. Under the action of the elastic force of the third elastic element, the second clamping element can be flipped towards the support member, so that the pressure head presses against the support surface of the support member.

[0025] The second clamping member has a toggle part at one end away from the pressure head. By pushing the toggle part, the second clamping member can be flipped away from the support member, so that the pressure head is lifted away from the support surface of the support member.

[0026] Furthermore, the second drive component also includes a fourth elastic element;

[0027] The mounting base is slidably disposed on the second support along the second direction. One end of the fourth elastic member is connected to the mounting base, and the other end of the fourth elastic member is connected to the second support. The fourth elastic member causes the mounting base to have a tendency to move away from the support member.

[0028] Furthermore, the second positioning unit also includes a second locking component, which includes a first retaining member and a second retaining member;

[0029] The first and second holding members are arranged opposite each other along a third direction, which is perpendicular to the plane containing the first and second directions. The first holding member is slidably disposed on the base along the third direction, and the second holding member is fixed on the second support.

[0030] The first retaining member has a plurality of slots on the side facing the second retaining member, and the plurality of slots are spaced apart along the first direction. The second retaining member has a snap-fit ​​protrusion on the side facing the first retaining member.

[0031] The second holding member can move along the first direction with the second support, so that the locking protrusion is opposite to any of the card slots, and the movement of the first holding member along the third direction can make the locking protrusion fit into or exit the card slot.

[0032] Furthermore, the second locking component also includes a fifth elastic element, one end of which is connected to the first retaining element, and the other end of which is connected to the base. The elastic force of the fifth elastic element causes the first retaining element to have a tendency to move closer to the second retaining element.

[0033] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0034] The battery cell positioning fixture provided by this utility model includes a base, a first positioning unit, and a second positioning unit. The base is used to place the battery cell, and the first and second positioning units are located on both sides of the base. When the battery cell is placed on the base, the side of the battery cell with the BMU faces the second positioning unit. The first positioning unit can press the battery cell onto the base to position it, while the second positioning unit can position and clamp the BMU at a predetermined position, specifically at the position where the flexible board is located on the BMU, to achieve positioning of the BMU and simultaneously position the flexible board on the BMU to prevent the flexible board from being stretched and wrinkled or torn.

[0035] The mounting positions of the first and second positioning units on the base are adjustable. When positioning different types of battery cells, the position of the first positioning unit can be adjusted according to the cell size, allowing it to press the central area of ​​the cell and ensuring stable positioning. Simultaneously, the position of the second positioning unit can be adjusted according to the location of the flexible circuit board on the BMU, positioning and clamping the area of ​​the BMU with the flexible circuit board, or removing the second positioning unit from the end of the cell when there is no flexible circuit board on the BMU. Therefore, the battery cell positioning fixture of this application is compatible with different types and sizes of battery cell products, enabling positioning of different types and sizes of battery cell products, reducing product changeover costs, and improving product changeover efficiency. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 A schematic diagram of the overall structure of the battery cell positioning fixture provided in this embodiment of the utility model;

[0038] Figure 2 A schematic diagram of the structure of the first positioning unit provided in an embodiment of this utility model from a first perspective;

[0039] Figure 3 A schematic diagram of the structure of the first positioning unit provided in an embodiment of this utility model from a second perspective;

[0040] Figure 4 This is a schematic diagram of the structure of the second positioning unit provided in an embodiment of the present invention from a first perspective;

[0041] Figure 5 A schematic diagram of the structure of the second positioning unit provided in an embodiment of this utility model from a second perspective.

[0042] Figure label:

[0043] 1-Base, 11-First mounting hole, 12-Second mounting hole;

[0044] 2-First positioning unit, 21-First support, 22-First clamping member, 23-First elastic member, 24-Limiting protrusion, 25-Drive rod, 26-First locking assembly;

[0045] 3-Second positioning unit, 31-First holding member, 32-Slot, 33-Second support, 34-Support member, 35-Mounting base, 36-Second clamping member, 37-Pressure head, 38-Actuating part, 39-Rotating shaft, 310-Third elastic member, 311-Fourth elastic member, 312-Second holding member, 313-Fifth elastic member, 314-Snap-fit ​​protrusion;

[0046] a - First direction, b - Second direction, c - Third direction. Detailed Implementation

[0047] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0048] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0049] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0050] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] The following reference Figures 1 to 5 This application describes a cell positioning fixture according to some embodiments.

[0053] This application provides a battery cell positioning fixture, such as Figure 1 As shown, the battery cell positioning fixture includes a base 1, a first positioning unit 2, and a second positioning unit 3.

[0054] The base 1 has three mutually perpendicular directions: a first direction, b second direction, and c third direction. When the base 1 is placed horizontally, the second direction b is vertical, allowing the battery cell to be placed above the base 1 for support. When the battery cell is placed on the base, its thickness is along the second direction, its width is along the first direction, and its length is along the third direction. A first positioning unit 2 is located on one side of the third direction c of the base 1, and a second positioning unit 3 is located on the other side of the third direction c of the base 1. When the battery cell is placed on the base 1, the side of the battery cell with the BMU faces the second positioning unit 3. The first positioning unit 2 presses the battery cell onto the base 1 to position it, while the second positioning unit 3 positions and clamps the BMU at a predetermined location, specifically at the location where the flexible circuit board is located, thus positioning the BMU and the flexible circuit board to prevent it from being stretched, wrinkled, or torn.

[0055] The mounting positions of the first positioning unit 2 and the second positioning unit 3 on the base 1 are adjustable along the first direction a. When positioning different types of battery cells, the position of the first positioning unit 2 can be adjusted according to the different sizes of the battery cells, so that the first positioning unit 2 can press the central area of ​​the battery cell, ensuring the stability of the battery cell positioning. At the same time, the position of the second positioning unit 3 can also be adjusted according to the different positions of the flexible circuit board on the BMU, so as to position and clamp the position of the BMU where the flexible circuit board is located, or when there is no flexible circuit board on the BMU, the second positioning unit 3 can be moved away from the end of the battery cell. Thus, the battery cell positioning fixture of this application can be compatible with battery cell products of different models and sizes, realize the positioning of battery cell products of different models and sizes, reduce product changeover costs, and improve product changeover efficiency.

[0056] Regarding the first positioning unit 2, in one embodiment of this application, preferably, as shown in... Figure 2 As shown, the first positioning unit 2 includes a first support 21, a first clamping member 22, and a first driving assembly.

[0057] The first support 21 is mounted on the base 1, and the first clamping member 22 is suspended above the base 1. When the battery cell is placed on the base 1, the first clamping member 22 is suspended above the battery cell. One end of the first clamping member 22 is slidably disposed on the first support 21 along the second direction b, and the first clamping member 22 is connected to the driving end of the first driving assembly. The first driving assembly can drive the first clamping member 22 to move closer to the base 1 along the second direction b to press the battery cell onto the base 1, or the first driving assembly can drive the first clamping member 22 to move away from the base 1 along the second direction b to release the battery cell, making it easier to pick up and put down the battery cell.

[0058] In this embodiment, the first support 21 is movable relative to the base 1 along a first direction a; specifically, in conjunction with Figure 3 As shown, the first support 21 is placed directly on the base 1. The base 1 has a second mounting hole 12 with a length direction along the first direction a. A limiting protrusion 24 is provided below the base 1. The limiting protrusion 24 is adapted to be inserted into the second mounting hole 12. The length of the limiting protrusion 24 in the first direction a is less than the length of the second mounting hole 12. At the same time, the limiting protrusion 24 and the second mounting hole 12 are clearance-fitted in the third direction c, so that the limiting protrusion 24 can slide in the second mounting hole 12 along the first direction a. Thus, through the cooperation of the second mounting hole 12 and the limiting protrusion 24, the first support 21 is locked onto the base 1, and the first support 21 can move relative to the base 1 along the first direction a. The first support 21 drives the first pressing member 22 to move along the first direction a, thereby adjusting the pressing position of the first pressing member 22 on the battery cell according to the position of the battery cell.

[0059] In this embodiment, preferably, as follows: Figure 2 and Figure 3 As shown, the first driving assembly includes a driving rod 25 and a first elastic member 23. The driving rod 25 is slidably disposed on the first support 21 along the second direction b. The base 1 is provided with a first mounting hole 11 at a position opposite to the driving rod 25. One end of the driving rod 25 passes through the first mounting hole 11 and passes through the base 1. The other end of the driving rod 25 is connected to the first clamping member 22. The length direction of the first mounting hole 11 is set along the first direction a. Through the first mounting hole 11, the driving rod 25 can rise and fall relative to the base 1 along the second direction b. At the same time, the driving rod 25 can also move along the first direction a with the first support 21.

[0060] The end of the drive rod 25 away from the first clamping member 22 can be connected to an external drive device. Under the drive of the external drive device, the drive rod 25 can push the first clamping member 22 away from the base 1. The first elastic member 23 is sleeved on the drive rod 25. The two ends of the first elastic member 23 abut against the first clamping member 22 and the first support 21 respectively. The elastic force of the first elastic member 23 makes the first clamping member 22 have a tendency to move closer to the base 1. So when the battery cell is placed on the base 1 and the external drive device is removed, the first clamping member 22 can move towards the base 1 under the action of the elastic force of the first elastic member 23, and finally press on the battery cell with a predetermined clamping force to achieve positioning of the battery cell.

[0061] In this embodiment, preferably, as follows: Figure 3 As shown, the first positioning unit 2 further includes a first locking component 26 disposed on the first support 21; the first locking component 26 includes a locking member, which is slidably disposed on the first support 21 via a slide block, so that the locking member can move closer to or further away from the base 1; the base 1 is provided with a plurality of locking holes, which are spaced apart along the first direction a; moving the first support 21 along the first direction a can make the locking member face any of the locking holes, and then sliding the slide block, the locking member can be fitted into the locking hole to lock the first support 21 onto the base 1; at the same time, pulling the locking member out of the locking hole can adjust the position of the first support 21 again.

[0062] Preferably, the first locking component 26 further includes a second elastic element. The slide abuts against the first support 21 through the second elastic element. The elastic force of the second elastic element causes the slide to have a tendency to move closer to the base 1. Thus, the locking element can be stably inserted into the locking hole by relying on the second elastic element to achieve stable locking of the first support 21.

[0063] In this embodiment, preferably, the base 1 is further provided with a rubber-coated base 1 on the side for supporting the battery cell. The rubber-coated base 1 is used to support and position the battery cell, preventing the battery cell from short-circuiting due to contact with metal.

[0064] Preferably, the first clamping member 22 is made of S45C (carbon steel), and PU (polyurethane) is inlaid on the side of the first clamping member 22 facing the battery cell, so that the first clamping member 22 has sufficient rigidity and can also prevent the battery cell from contacting metal and short-circuiting.

[0065] Regarding the second positioning unit 3, in one embodiment of this application, preferably, as shown below... Figure 4 As shown, the second positioning unit 3 includes a second support 33, a support member 34, a second clamping member 36, and a second driving assembly.

[0066] The second support 33 is slidably disposed on the base 1 along the first direction a; for example, the second support 33 is mounted on the base 1 via a slide rail disposed along the first direction a, so that the second support 33 can be pushed to slide back and forth on the base 1 along the first direction a. The support member 34 is fixed to the second support 33, and one side of the support member 34 in the second direction b forms a support surface for supporting the BMU. For example, when the second direction b extends in the vertical direction, the upper surface of the support member 34 is the support surface; when the battery cell is placed on the base 1, the BMU at the end of the battery cell can extend above the support member 34 so that the support member 34 can provide support for the BMU. The second clamping member 36 is movably mounted on the second support 33 via the second drive assembly. Under the drive of the second drive assembly, the second clamping member 36 can press against the support surface of the support member 34. Thus, when the position of the BMU with the flexible plate is supported on the support surface of the support member 34, the second clamping member 36 and the support member 34 can be used to clamp the position of the BMU with the flexible plate, thereby positioning the flexible plate on the BMU and preventing the flexible plate from being pulled and damaged.

[0067] Simultaneously, when positioning the location of the flexible circuit board on the BMU, the second support 33 can be moved along the first direction a according to the specific location of the flexible circuit board on different products, so as to adjust the position of the second positioning unit 3, so that the location of the flexible circuit board on the BMU is precisely clamped between the support member 34 and the second clamping member 36. For battery cell products that do not have a flexible circuit board on the BMU that needs to be positioned, the second positioning unit 3 can also be moved away from the end of the battery cell by moving the second support 33.

[0068] In this embodiment, preferably, the second clamping member 36 is disposed on one side of the support member 34 in the third direction c. One end of the second clamping member 36 in the second direction b is mounted on the second support 33 via a mounting base 35, and the second clamping member 36 and the mounting base 35 are rotatably connected via a rotating shaft 39. The rotating shaft 39 is arranged along the first direction a, so that the second clamping member 36 can rotate under the action of external force to move closer to or away from the support member 34. The other end of the second clamping member 36 in the second direction b forms a pressure head 37, which extends to face the support surface of the support member 34.

[0069] The second clamping member 36 is provided with a toggle part 38. Specifically, the toggle part 38 is located at the end of the second clamping member 36 away from the pressure head 37. An external device can act on the toggle part 38 to make the second clamping member 36 flip away from the support member 34. At this time, the pressure head 37 can flip and lift away from the support surface of the support member 34 so that the BMU can be supported on the support member 34.

[0070] The second drive assembly includes a third elastic element 310, which is connected between the second clamping member 36 and the mounting base 35. The elastic force of the third elastic element 310 causes the second clamping member 36 to have a tendency to flip towards the support member 34. When the external force acting on the actuating part 38 is removed, the second clamping member 36 can flip towards the support member 34 under the action of the elastic force of the third elastic element 310, and the pressure head 37 presses against the support surface of the support member 34. Thus, when the BMU is supported on the support member 34 at the position where the flexible plate is located, the second clamping member 36 can use the pressure head 37 to cooperate with the support member 34 to position and clamp the position where the flexible plate is located on the BMU.

[0071] In this embodiment, preferably, on the second support 33, the mounting seat 35 and the support member 34 are spaced apart along the second direction b. The mounting seat 35 is located on the side of the support member 34 opposite to its supporting surface. The mounting seat 35 is slidably disposed on the second support 33 along the second direction b, so that the mounting seat 35 can move closer to or further away from the support member 34. The second drive assembly also includes a fourth elastic member 311. The mounting seat 35 abuts against the second support 33 through the fourth elastic member 311. The elastic force of the fourth elastic member 311 causes the mounting seat 35 to have a tendency to move away from the support member 34.

[0072] When the second direction b extends vertically and the BMU is supported above the support member 34, a driving force can be provided to the actuating part 38 of the second clamping member 36 by an external device, causing the second clamping member 36 and the slide to slide upward, and at the same time causing the second clamping member 36 to flip away from the support member 34. At this time, the pressure head 37 at the upper end of the second clamping member 36 rises and flips away from the support surface of the support member 34. When the driving force of the external device is removed, the second clamping member 36 will flip towards the support member 34 under the action of the third elastic member 310, and at the same time move downward under the action of the fourth elastic member 311, so that the pressure head 37 of the second clamping member 36 flips and elastically presses against the BMU on the support member 34, so as to achieve positioning and clamping of the BMU as a flexible board and avoid damaging the flexible board.

[0073] In this embodiment, preferably, the support member 34 is made of PEEK (polyetheretherketone) material to avoid short circuit of the battery cell; the second clamping member 36 is made of S136 (chromium nickel molybdenum vanadium alloy steel), and the side of the clamping head 37 facing the support member 34 is inlaid with PU (polyurethane) to give the second clamping member 36 sufficient rigidity and also to prevent the battery cell from contacting metal and short circuit.

[0074] In one embodiment of this application, preferably, as shown below, Figure 4 and Figure 5 As shown, the second positioning unit 3 also includes a second locking component, which includes a first holding member 31 and a second holding member 312. The first holding member 31 and the second holding member 312 are arranged opposite each other along a third direction c. The first holding member 31 is slidably disposed on the base 1 along the third direction c, so that the first holding member 31 can move closer to or away from the holding member. The second holding member 312 is fixed on the second support 33, so that the second holding member 312 can slide along the first direction a with the second support 33.

[0075] The first retaining member 31 has multiple slots 32 on the side facing the second retaining member 312. The multiple first slots 32 are spaced apart along the first direction a. The second retaining member 312 has a snap-fit ​​protrusion 314 on the side facing the first retaining member 31. When the second retaining member 312 moves with the second support 33, the snap-fit ​​protrusion 314 on the second retaining member 312 can be opposite to any slot 32 on the first retaining member 31. Then, by moving the first retaining member 31, the snap-fit ​​protrusion 314 can be adapted to be inserted into the opposite slot 32. Thus, by using the cooperation of the first retaining member 31 and the second retaining member 312, the second support 33 and the base 1 are locked, so that the support member 34 and the second clamping member 36 on the second support 33 can stay at the required position to position and clamp the BMU. When it is necessary to adjust the position of the second support 33, the first retaining member 31 can be moved to make the snap-fit ​​protrusion 314 exit from the slot 32.

[0076] In this embodiment, preferably, the second locking component further includes a fifth elastic member 313, and the first holding member 31 is connected to the base 1 through the fifth elastic member 313. The fifth elastic member 313 causes the first holding member 31 to have a tendency to move closer to the second holding member 312.

[0077] In actual operation, when it is necessary to adjust the position of the second support 33, the external driving device is used to push the first holding member 31 away from the second holding member 312, so that the locking protrusion 314 exits the slot 32; after the position adjustment of the second support 33 is completed, the locking protrusion 314 is opposite to a slot 32. At this time, the external device is removed, and the first holding member 31 will approach the second holding member 312 under the action of the fifth elastic member 313, so that the locking protrusion 314 is inserted into the slot 32, thereby locking the position of the second support 33.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electrode positioning jig, characterized by comprising: The base, the first positioning unit and the second positioning unit are provided; The base is used for placing the battery cell, the first positioning unit and the second positioning unit are arranged on two sides of the base, and the side of the battery cell provided with the BMU faces the second positioning unit; The first positioning unit and the second positioning unit are both movable relative to the base, so as to press the battery cell on the base by the first positioning unit and clamp the predetermined position of the BMU by the second positioning unit.

2. The cell positioning jig of claim 1, wherein, The first positioning unit comprises a first support, a first pressing member and a first driving assembly; The first support is movably arranged on the base along a first direction, the first direction is the width direction of the battery cell on the base, the first pressing member is located on the side of the base used for placing the battery cell, and the first pressing member is slidingly connected to the first support along a second direction, the second direction is the thickness direction of the battery cell on the base; The first driving assembly is arranged on the first support, the first pressing member is connected to the first driving assembly, and the first pressing member is movable under the driving of the first driving assembly, so as to press the battery cell on the base.

3. The cell positioning jig of claim 2, wherein, The first driving assembly comprises a driving rod and a first elastic member; A first mounting hole is arranged on the base, the driving rod is arranged along the second direction, one end of the driving rod is movably inserted into the first mounting hole along the first direction and the second direction; The other end of the driving rod is connected to the first pressing member, the first elastic member is sleeved on the driving rod, one end of the first elastic member is connected to the first pressing member, the other end of the first elastic member is connected to the first support, and the elastic force of the first elastic member makes the first pressing member have a movement trend close to the base.

4. The cell positioning fixture of claim 2, wherein, A second mounting hole is arranged on the base; The first support is arranged on the base, a limiting protrusion is arranged on the first support, and the limiting protrusion is movably inserted into the second mounting hole along the first direction.

5. The cell positioning fixture of claim 2, wherein, A first locking assembly is arranged on the first support, the first locking assembly comprises a locking member, and the locking member is slidingly arranged on the first support through a sliding seat; A plurality of locking holes are arranged on the base along the first direction, the movement of the first support can make the locking member opposite to any one of the locking holes, and the movement of the sliding seat can make the locking member inserted into or withdrawn from the locking hole; The first locking assembly further comprises a second elastic member, one end of the second elastic member abuts against the sliding seat, the other end of the second elastic member abuts against the first support, and the elastic force of the second elastic member makes the locking member have a movement trend of being inserted into the locking hole.

6. The cell positioning fixture of claim 1, wherein, The second positioning unit comprises a second support, a supporting member, a second pressing member and a second driving assembly; The second support is arranged on the base in a sliding manner along a first direction, the first direction being a width direction of the battery cell on the base, the support member is fixed on the second support, and a side of the support member in a second direction forms a support surface for supporting the BMU, the second direction being a thickness direction of the battery cell on the base; The second driving assembly is arranged on the second support, and the second driving assembly is connected with the second pressing member, the second pressing member being capable of being pressed against the support surface of the support member for supporting the BMU under the driving of the second driving assembly.

7. The cell positioning fixture of claim 6, wherein, The second driving assembly comprises a third elastic member; The second pressing member is arranged on a side of the support member in a third direction, the second support is provided with a mounting seat, one end of the second pressing member in the second direction is rotatably connected to the mounting seat through a rotating shaft, the rotating shaft is arranged along the first direction, and the other end of the second pressing member in the second direction forms a pressing head, the pressing head being opposite to the support surface of the support member; One end of the third elastic member is connected with the second pressing member, the other end of the third elastic member is connected with the mounting seat, and the second pressing member is capable of being flipped towards the support member under the elastic force of the third elastic member, so that the pressing head is pressed against the support surface of the support member; The second pressing member is provided with a pushing part at an end away from the pressing head, the second pressing member is capable of being flipped away from the support member by pushing the pushing part, so that the pressing head is lifted away from the support surface of the support member.

8. The cell positioning fixture of claim 7, wherein, The second driving assembly further comprises a fourth elastic member; The mounting seat is arranged on the second support in a sliding manner along the second direction, one end of the fourth elastic member is connected with the mounting seat, the other end of the fourth elastic member is connected with the second support, and the fourth elastic member causes the mounting seat to have a movement trend away from the support member.

9. The cell positioning fixture of claim 6, wherein, The second positioning unit further comprises a second locking assembly, the second locking assembly comprising a first clamping member and a second clamping member; The first clamping member and the second clamping member are oppositely arranged along a third direction, the third direction being perpendicular to a plane in which the first direction and the second direction lie, the first clamping member being arranged on the base in a sliding manner along the third direction, and the second clamping member being fixed on the second support; A side of the first clamping member facing the second clamping member is formed with a plurality of clamping grooves, the plurality of clamping grooves being arranged in a spaced manner along the first direction, and a side of the second clamping member facing the first clamping member is formed with a clamping protrusion; The second clamping member is capable of moving along the first direction with the second support, so that the clamping protrusion is opposite to any one of the clamping grooves, and the movement of the first clamping member along the third direction is capable of causing the clamping protrusion to be adapted to be inserted into or withdrawn from the clamping groove.

10. The cell positioning fixture of claim 9, wherein, The second locking assembly further comprises a fifth elastic member, one end of the fifth elastic member is connected with the first clamping member, the other end of the fifth elastic member is connected with the base, and the elastic force of the fifth elastic member makes the first clamping member have a movement tendency close to the second clamping member.

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