A simple tooling for assisting in the disassembly of battery modules

Abstract

This utility model discloses a simple tooling for assisting in the disassembly of a battery module, comprising: a base, a top seat, a push rod, and a push rod drive component; both the base and the top seat are provided with threaded holes; the push rod includes a push rod drive part and threaded rods at both ends of the push rod drive part, with the threaded rods at both ends rotating in opposite directions; the push rod is threadedly connected to the threaded holes of the base and the top seat respectively through the threaded rods at both ends; the push rod drive component is mounted on the push rod drive part and drives the push rod to rotate relative to the base and the top seat, so that the base and the top seat can move closer or further apart when the push rod rotates relative to the base and the top seat. The simple tooling for assisting in the disassembly of a battery module disclosed in this utility model has the advantages of simple structure, small size, and convenient portability and operation.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for battery module disassembly and assembly, and in particular to a simple tooling for assisting in the disassembly of battery modules. Background Technology

[0002] A thermally conductive sheet or silicone sealant is placed between the bottom surface of the battery module and the surface of the water-cooled heat sink to reduce contact thermal resistance. Due to the inherent properties of the thermally conductive sheet and silicone sealant, after the battery module screws are tightened, the bottom surface of the module, the surface of the water-cooled heat sink, and the thermally conductive material are in close contact. Disassembling the module for inspection and maintenance is extremely difficult and cannot be accomplished by hand. Therefore, a simple tool is needed to assist in the disassembly process. However, existing ordinary tools exert excessive stress on the working surface, damaging components, cannot control the force applied, and result in significant displacement during separation, easily causing component impact. Utility Model Content

[0003] This utility model addresses the problems existing in the prior art by proposing a simple tooling for assisting in the disassembly of battery modules.

[0004] The technical means adopted in this utility model are as follows:

[0005] A simple tooling for assisting in the disassembly of a battery module includes: a base, a top seat, a top rod, and a top rod drive component;

[0006] Both the base and the top seat are provided with threaded holes;

[0007] The push rod includes a push rod drive part and threaded rods disposed at both ends of the push rod drive part, wherein the threaded rods at both ends rotate in opposite directions;

[0008] The top rod is threadedly connected to the threaded holes of the base and the top seat through the threaded rods at both ends, respectively;

[0009] The push rod drive is mounted on the push rod drive unit and drives the push rod to rotate relative to the base and the top seat. When the push rod rotates relative to the base and the top seat, the base and the top seat can move closer to or further away from each other.

[0010] The push rod drive includes a drive handle and multiple ball bearings;

[0011] The drive handle includes a handle and an annular sleeve fixed to one end of the handle. The inner wall of the annular sleeve is provided with corrugated grooves evenly distributed in the circumferential direction.

[0012] The outer wall of the push rod drive unit is machined with two rows of wedge-shaped grooves facing opposite directions. Each group of wedge-shaped grooves has multiple circumferentially distributed wedge-shaped grooves, and the ball is disposed in the wedge-shaped grooves. The center line of the wedge-shaped groove is inclined at an angle to the horizontal plane passing through the center point of the push rod drive unit, and the shallower end of the wedge-shaped groove is lower than the deeper end of the wedge-shaped groove.

[0013] The annular sleeve is fitted on the push rod drive part and can move a set distance along the axial direction on the push rod drive part, so that the corrugated groove in the annular sleeve can interact with the balls in the two rows of wedge groove groups respectively.

[0014] When the corrugated groove interacts with the balls in one of the rows of wedge grooves, the drive handle can rotate around the axis of the push rod drive part in a set direction. The annular sleeve is locked to the push rod drive part through the balls and drives the push rod to rotate. When the drive handle rotates around the axis of the push rod drive part in the opposite direction, the annular sleeve is unlocked from the push rod drive part and rotates independently.

[0015] Furthermore, the top seat is provided with a stepped surface structure, the tread of the stepped surface structure is a bearing surface for supporting the battery module, and the kick surface of the stepped surface structure is a limiting surface for preventing the top seat from rotating.

[0016] Furthermore, an anti-slip pad is fixed to the bottom of the base.

[0017] Furthermore, an anti-slip pad is fixed on the tread surface of the stepped surface structure.

[0018] Furthermore, the outer walls of the push rod drive unit are fixed with retaining ring structures at both ends for axial positioning of the annular sleeve.

[0019] Furthermore, the retaining ring structure at one end is an integral part of the push rod drive unit, and the retaining ring structure at the other end is fixed to the outer wall end of the push rod drive unit by welding or threaded connection.

[0020] Furthermore, the tread surface of the stepped surface structure is an inclined surface.

[0021] Compared with the prior art, the simplified tooling for assisting in the disassembly of battery modules disclosed in this utility model has the following beneficial effects: The simplified tooling for assisting in the disassembly of battery modules disclosed in this utility model is equipped with a base, a top seat, a top rod, and a top rod drive component. The top rod includes threaded rods with opposite directions of rotation at both ends. The top rod drive component can drive the top rod to rotate, thereby increasing or decreasing the distance between the top seat and the base. The tooling disclosed in this application, due to the use of a threaded structure for driving, can effectively ensure the lifting distance. At the same time, the use of a double stud structure with opposite directions of rotation can improve the lifting efficiency. Furthermore, when the tooling is not in use, the threaded rods at both ends of the base, top seat, and top rod can be completely screwed together, reducing the volume of the tooling and making it convenient for storage and carrying. It also has the advantages of simple structure and small size. Attached Figure Description

[0022] Figure 1 This is a top view of a battery module using the tooling disclosed in this application;

[0023] Figure 2 This is a front view of a battery module using the tooling disclosed in this application;

[0024] Figure 3 This is a structural diagram of the simplified tooling for assisting in the disassembly of the battery module disclosed in this application;

[0025] Figure 4 for Figure 3 Sectional view at point BB;

[0026] Figure 5 This is a structural diagram of the push rod of the simple tooling for assisting in the disassembly of the battery module disclosed in this application;

[0027] Figure 6 This is a structural diagram of the drive handle of the simple tooling for assisting in the disassembly of the battery module disclosed in this application;

[0028] Figure 7 This is a cross-sectional view of the drive handle of the simple tooling for assisting in the disassembly of the battery module disclosed in this application;

[0029] Figure 8 This is a schematic diagram illustrating the function of the annular sleeve and the upper row of wedge-shaped grooves in the simple tooling for disassembling the auxiliary battery module disclosed in this application.

[0030] Figure 9 This is a structural diagram of the top mount of the simple tooling for disassembling the auxiliary battery module disclosed in this application.

[0031] In the diagram: 1. Base; 10. Threaded hole; 2. Top seat; 20. Stepped surface structure; 201. Bearing surface; 202. Limiting surface; 3. Top rod; 30. Top rod drive part; 300. Wedge groove; 301. Retaining ring structure; 31. Threaded rod; 4. Top rod drive part; 40. Drive handle; 401. Handle; 402. Annular sleeve; 403. Corrugated groove; 41. Ball bearing; 5. Anti-slip pad; 6. Battery module; 60. Water-cooled heat sink; 61. Module shell; 7. Simple tooling. Detailed Implementation

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the simple tooling 7 for disassembling the auxiliary battery module disclosed in this application includes: a base 1, a top seat 2, a top rod 3, and a top rod drive component 4;

[0033] Both the base 1 and the top seat 2 are provided with threaded holes 10;

[0034] The push rod 3 includes a push rod drive part 30 and threaded rods 31 disposed at both ends of the push rod drive part 30, with the threaded rods 31 at both ends rotating in opposite directions;

[0035] The top rod 3 is threadedly connected to the threaded holes 10 of the base 1 and the top seat 2 respectively through the threaded rods 31 at both ends;

[0036] The push rod drive 4 is mounted on the push rod drive part 30 and drives the push rod 3 to rotate relative to the base 1 and the top seat 2. When the push rod 3 rotates relative to the base 1 and the top seat 2, the base 1 and the top seat 2 can move closer to or further away from each other.

[0037] Specifically, such as Figure 1 and Figure 2As shown, the battery module 6 includes a water-cooled heat sink 60, a module housing 61, and multiple battery packs. The multiple battery packs are placed inside the module housing 61. The module housing 61 is mounted on the water-cooled heat sink 60 and secured by fastening bolts. A heat-conducting sheet or thermally conductive silicone is provided between the module housing 61 and the water-cooled heat sink 60 to facilitate the transfer of heat generated by the battery to the water-cooled heat sink 60 for heat dissipation. The module housing 61 has a recessed area. When using the tooling disclosed in this application to inspect, maintain, and disassemble the battery module 6, first disconnect the battery module wiring, then remove the fastening bolts of the battery module. After that, place the base 1 of the tooling on the water-cooled heat sink 60 and insert the top seat 2 into the recessed area of ​​the module housing 61. Drive the top rod 3 to rotate through the top rod drive component 4. The rotation of the top rod 3 can adjust the distance between the top seat 2 and the base 1, so that the top seat 2 contacts the bottom surface of the recessed area of ​​the module housing 61. Continue to drive the top rod 3 to rotate through the top rod drive component 4. The rotation of the top rod 3 can drive the top seat 2 to rise so that the top seat 2 lifts the module housing 61 (including the battery inside the module housing 61), thereby separating the module housing 61 from the water-cooled heat sink 60, so that it can be further maintained or repaired. The tooling disclosed in this application, due to its threaded drive structure, effectively ensures the lifting distance. Simultaneously, the use of a double-stud structure with opposite screw directions improves lifting efficiency. Furthermore, when not in use, the threaded rods 31 at both ends of the base 1, top seat 2, and top rod 3 can be fully screwed together, reducing the tooling's size and facilitating storage and transport. The tooling disclosed in this application can be used to lift different parts of the battery module 6 sequentially to achieve disassembly, maintenance, or repair of the battery module 6; alternatively, multiple toolings can be used simultaneously to lift the battery module 6 as a whole to achieve disassembly, maintenance, or repair of the battery module 6.

[0038] Specifically, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in this embodiment, the push rod drive 4 includes a drive handle 40 and a plurality of balls 41;

[0039] The drive handle 40 includes a handle 401 and an annular sleeve 402 fixed to one end of the handle 401. The inner wall of the annular sleeve 402 is provided with corrugated grooves 403 evenly distributed in the circumferential direction.

[0040] Two rows of wedge-shaped grooves in opposite directions are machined on the outer wall of the push rod drive unit 30. Each set of wedge-shaped grooves has multiple circumferentially distributed wedge-shaped grooves 300, and the ball bearing 41 is disposed in the wedge-shaped groove 300. The center line of the wedge-shaped groove 300 is inclined at an angle to the horizontal plane passing through the center point of the push rod drive unit 30 (the radial section of the push rod drive unit 30), and the height of the shallower end of the wedge-shaped groove 300 is lower than that of the deeper end of the wedge-shaped groove 300.

[0041] The annular sleeve 402 is fitted on the push rod drive unit 30 and can move a set distance (the set distance is greater than or equal to the distance between the upper and lower rows of wedge grooves) along the axial direction (up and down direction) on the push rod drive unit 30, so that the corrugated groove 403 in the annular sleeve 402 can interact with the balls 41 in the two rows of wedge grooves respectively.

[0042] When the corrugated groove 403 interacts with the balls 41 in one of the rows of wedge grooves, the drive handle 40 can rotate around the axis of the push rod drive part 30 in a set direction. The annular sleeve 402 is locked with the push rod drive part 30 through the balls 41 and drives the push rod 3 to rotate. When the drive handle 40 rotates around the axis of the push rod drive part 30 in the opposite direction, the annular sleeve 402 is unlocked from the push rod drive part 30 and rotates independently.

[0043] like Figure 4As shown, the corrugated groove 403 inside the annular sleeve 402 corresponds to the position of the lower row of wedge grooves. Since the centerline of the wedge groove 300 is inclined at an angle to the horizontal plane of the center point of the push rod drive unit 30, and the shallower end of the wedge groove 300 is lower than the deeper end, that is, a wedge groove 300 is machined at an angle on the outside of the push rod drive unit 30. The opening end of the wedge groove 300 is shallower and located on the lower side, while the internal depth of the wedge groove 300 gradually increases. Located on the upper side, the ball bearing 41 is placed in the wedge-shaped groove 300. When the drive handle 40 rotates around the axis of the push rod drive part 30 in a set direction (the direction in which the groove depth of the wedge-shaped groove 300 gradually decreases), the ball bearing 41 rolls to the opening end of the wedge-shaped groove 300 under the action of gravity, and part of the ball bearing 41 enters the corrugated groove 403 of the annular sleeve 402, thereby making effective contact between the ball bearing 41 and the inner wall of the annular sleeve 402 and the outer wall of the push rod drive part 30, thereby making the annular sleeve 402 and the ball bearing 41... The ball 41 is locked between the corrugated groove 403 and the wedge groove 300 (i.e., the ball 41 is locked between the annular sleeve 402 and the push rod drive part 30), thereby driving the handle 40 to drive the push rod 3 to rotate; when the drive handle 40 rotates in the opposite direction around the axis of the push rod drive part 30 (in the direction where the depth of the wedge groove 300 gradually increases), the ball 41 moves towards the deeper part of the wedge groove 300 under the action of the corrugated groove 403 of the annular sleeve 402. At this time, the ball 41 is in the annular... Under the action of the corrugated groove 403 of the sleeve 402, the ball 41 rolls towards the deeper direction of the wedge groove 300 until it separates from the corrugated groove 403. This unlocks the annular sleeve 402, the ball 41, and the push rod drive part 30, preventing the drive handle from driving the push rod 3 to rotate synchronously. This structure allows the operator to easily drive the push rod 3 to rotate repeatedly in a confined space using the push rod drive part 4, thereby achieving the required height between the base 1 and the top seat 2 to disassemble the battery module. When the drive handle 40 rotates in the opposite direction (in the direction where the depth of the wedge groove 300 decreases), the ball 41 rolls to the open end of the wedge groove 300 under the action of gravity, and some of the ball 41 enters the corrugated groove 403 of the annular sleeve 402. This locks the annular sleeve 402, the ball 41, and the push rod drive part 30 together, thus achieving the locking and unlocking of the annular sleeve 402 and the push rod drive part 30.

[0044] Figure 4 The corrugated groove 403 inside the annular sleeve 402 corresponds to the position of the lower row of wedge grooves, thereby enabling the push rod 3 to rotate in a first direction relative to the base 1 and the top seat 2 by the push rod drive member 4, thereby achieving the mutual separation (or proximity) between the base 1 and the top seat 2. Figure 8The diagram shows the corrugated groove 403 within the annular sleeve 402 corresponding to the upper row of wedge-shaped grooves. This allows the push rod 3 to rotate in a second direction (opposite to the first direction) relative to the base 1 and the top seat 2 via the push rod drive member 4, thereby bringing the base 1 and the top seat 2 closer together (or further apart). The operator can move the drive handle 40 along the axial direction of the push rod drive part 30 to align the annular sleeve 402 with the two rows of wedge-shaped grooves, thus bringing the base 1 and the top seat 2 closer together or further apart.

[0045] Furthermore, the top seat 2 is provided with a stepped surface structure 20, the tread of the stepped surface structure 20 is a bearing surface 201 for supporting the battery module 6, and the kick surface of the stepped surface structure 20 is a limiting surface 202 for preventing the top seat 2 from rotating.

[0046] Specifically, such as Figure 9 As shown, in this embodiment, the upper surface of the top seat 2 is a stepped surface structure 20. The step surface of the stepped surface structure 20 is a bearing surface 201 for supporting the battery module 6, and the kick surface of the stepped surface structure 20 is a limiting surface 202 for preventing the top seat 2 from rotating. That is, when the battery module 6 is disassembled using the tooling disclosed in this application, the base 1 is placed on the water-cooled heat sink 60 of the battery module 6. The bearing surface 201 of the top seat 2 contacts the bottom surface of the recessed area of ​​the module shell 61 of the battery module 6, and the limiting surface 202 of the top seat 2 contacts the outer side surface of the recessed area of ​​the module shell 61 of the battery module 6. The outer side surface of the recessed area of ​​the module shell 61 and the limiting surface 202 of the top seat 2 can restrict the rotation of the top seat 2, so that when the push rod 3 rotates under the drive of the push rod drive member 4, the top seat 2 and the base 1 cannot rotate and thus move closer or further apart under the action of the thread.

[0047] Furthermore, an anti-slip pad 5 is fixed to the bottom of the base 1.

[0048] Specifically, such as Figure 3 As shown, an anti-slip pad 5 is fixed to the bottom of the base 1 by means of adhesive or other methods. Preferably, the anti-slip pad 5 is a rubber pad. By setting the anti-slip pad 5, the friction between the base 1 and the water-cooled heat sink 60 of the battery module 6 can be increased, thereby reducing or preventing the base 1 from rotating when the drive handle 40 drives the top rod 3 to rotate.

[0049] Furthermore, an anti-slip pad 5 is fixed on the tread surface of the stepped surface structure 20.

[0050] Specifically, in this embodiment, such as Figure 9As shown, an anti-slip pad 5 is fixed on the tread surface of the stepped surface structure 20. Preferably, the anti-slip pad 5 is a rubber pad and is fixed to the tread surface of the stepped surface structure 20 by adhesive. By setting the anti-slip pad 5, the frictional force between the top seat 2 and the module shell 61 of the battery module 6 can be effectively increased, and the relative movement between the top seat 2 and the battery module 6 can be avoided. At the same time, setting the anti-slip pad 5 can reduce the hard contact between it and the battery module 6, and avoid damage to the battery module 6.

[0051] Furthermore, the outer walls of the push rod drive part 30 are fixed with retaining ring structures 301 for axial positioning of the annular sleeve 402.

[0052] Specifically, such as Figure 4 , Figure 5 and Figure 8 As shown, the outer walls of the push rod drive unit 30 are provided with outwardly protruding annular protrusions at both ends to form retaining ring structures 301. The outer diameter of the retaining ring structure 301 is larger than the diameter of the top of the corrugated groove 403, but smaller than the inner wall diameter of the annular sleeve 402 where the corrugated groove 403 is not provided. This allows the two retaining ring structures 301 to effectively restrict the movement of the annular sleeve 402 along the axis of the push rod 30 after the annular sleeve 402 is fitted onto the push rod drive unit 30, preventing the annular sleeve 402 from disengaging from the push rod drive unit 30. This effectively ensures the interaction between the drive handle 40, the ball bearing 41, and the push rod drive unit 30. Specifically, as... Figure 4 As shown, when the corrugated groove 403 corresponds to the position of the lower row of wedge-shaped grooves, the portion of the lower side of the annular sleeve 402 without the corrugated groove 403 can be fitted onto the lower retaining ring structure 301, and the inner surface of the lower retaining rod structure 301 can contact the lower end face of the corrugated groove 403, thereby restricting the downward movement of the annular sleeve 402; Figure 8 As shown, when the corrugated groove 403 corresponds to the position of the upper row of wedge grooves, the part of the annular sleeve 402 without the corrugated groove 403 can be fitted onto the upper retaining ring structure 301, and the inner surface of the upper retaining rod structure 301 can contact the upper end face of the corrugated groove 403, thereby restricting the upward movement of the annular sleeve 402. By setting the retaining ring structure 301, not only can the axial movement distance of the annular sleeve 402 along the push rod drive part 30 be effectively restricted, but the retaining ring structure 301 can also play a certain guiding role when the annular sleeve 402 rotates, thereby ensuring smooth and convenient operation.

[0053] Furthermore, the retaining ring structure 301 at one end is an integral structure with the push rod drive part 30, and the retaining ring structure 301 at the other end is fixed to the outer wall end of the push rod drive part 30 by welding or threaded connection.

[0054] Specifically, in this embodiment, the outer wall of one end of the push rod drive part 30 is machined with an outwardly protruding annular protrusion to form a retaining ring structure 301. The outer wall of the other end of the push rod drive part 30 is machined with an external thread or a smooth cylindrical structure. The inner wall of the other retaining ring structure is machined with an internal thread or a smooth inner ring. The retaining ring structure 301 at this end can be threadedly connected to or welded to the push rod drive part 30. The retaining ring structures 301 at both ends of the push rod drive part 30 form an installation space for restricting the axial movement of the annular sleeve 402 of the drive handle 40. Preferably, the retaining ring structure 301 and the push rod drive part 30 are connected by a threaded structure to facilitate the disassembly of the drive handle 40 and the push rod 3 for maintenance or repair of the ball and the drive handle.

[0055] Furthermore, the tread surface (bearing surface 201) of the stepped surface structure 20 is an inclined surface to facilitate better contact with the bottom surface of the recessed area of ​​the module housing 61.

[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An easy tool for assisting in disassembling a battery module, characterized by, include: Base, top mount, push rod, and push rod drive component; Both the base and the top seat are provided with threaded holes; The push rod includes a push rod drive part and threaded rods disposed at both ends of the push rod drive part, wherein the threaded rods at both ends rotate in opposite directions; The top rod is threadedly connected to the threaded holes of the base and the top seat through the threaded rods at both ends, respectively; The push rod drive is mounted on the push rod drive unit and drives the push rod to rotate relative to the base and the top seat. When the push rod rotates relative to the base and the top seat, the base and the top seat can move closer to or further away from each other. The push rod drive includes a drive handle and multiple ball bearings; The drive handle includes a handle and an annular sleeve fixed to one end of the handle. The inner wall of the annular sleeve is provided with corrugated grooves evenly distributed in the circumferential direction. The outer wall of the push rod drive unit is machined with two rows of wedge-shaped grooves facing opposite directions. Each group of wedge-shaped grooves has multiple circumferentially distributed wedge-shaped grooves, and the ball is disposed in the wedge-shaped grooves. The center line of the wedge-shaped groove is inclined at an angle to the horizontal plane passing through the center point of the push rod drive unit, and the shallower end of the wedge-shaped groove is lower than the deeper end of the wedge-shaped groove. The annular sleeve is fitted on the push rod drive part and can move a set distance along the axial direction on the push rod drive part, so that the corrugated groove in the annular sleeve can interact with the balls in the two rows of wedge groove groups respectively. When the corrugated groove interacts with the balls in one of the rows of wedge grooves, the drive handle can rotate around the axis of the push rod drive part in a set direction. The annular sleeve is locked to the push rod drive part through the balls and drives the push rod to rotate. When the drive handle rotates around the axis of the push rod drive part in the opposite direction, the annular sleeve is unlocked from the push rod drive part and rotates independently.

2. The simplified tooling for disassembling the auxiliary battery module according to claim 1, characterized in that: The top seat is provided with a stepped surface structure. The tread surface of the stepped surface structure is a bearing surface for supporting the battery module, and the kick surface of the stepped surface structure is a limiting surface for preventing the top seat from rotating.

3. The simplified tooling for disassembling the auxiliary battery module according to claim 2, characterized in that: The bottom of the base is fixed with an anti-slip pad.

4. The simplified tooling for disassembling the auxiliary battery module according to claim 2, characterized in that: An anti-slip mat is fixed to the tread surface of the stepped surface structure.

5. The simplified tooling for disassembling the auxiliary battery module according to claim 1, characterized in that: The outer walls of the push rod drive unit are fixed with retaining ring structures at both ends for axial positioning of the annular sleeve.

6. The simplified tooling for disassembling the auxiliary battery module according to claim 5, characterized in that: The retaining ring structure at one end is an integral part of the push rod drive unit, and the retaining ring structure at the other end is fixed to the outer wall end of the push rod drive unit by welding or threaded connection.

7. The simplified tooling for disassembling the auxiliary battery module according to claim 2, characterized in that: The tread surface of the stepped surface structure is an inclined surface.

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