Battery cell clamp
By designing a battery cell clamp that includes adjustment rods and limit rods, the problem of poor versatility of existing battery cell clamps is solved, and the adaptation of battery cells of different thicknesses and widths is achieved, reducing production and purchase costs.
Patent Information
- Application Number
- CN202421164585.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-24
AI Technical Summary
Existing battery cell fixtures can only be adapted to one type of battery cell, resulting in poor versatility and increasing production and purchase costs.
A battery-cell fixture is designed, including a first battery-cell clamp, a second battery-cell clamp, an adjustment rod, a fixing member and a limit rod. By adjusting the fit between the rod and the fixing member, the distance between the first cell clamp and the second cell clamp can be changed to adapt to the cell of different thicknesses. The limiting rod slides along the strip hole, changing its abutment at different positions on the surface of the first cell clamp, and adapting to different widths of cells.
The battery cell clamp can adapt to battery cells of different thicknesses and widths, improving its versatility and reducing purchasing costs.
Smart Images
Figure CN222521069U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery cell manufacturing equipment, in particular to a cell clamp. Background Art
[0002] There are three types of batteries: aluminum shell batteries, soft pack batteries, and cylindrical batteries. Usually, mobile phone batteries use aluminum shell batteries, Bluetooth and other digital products mostly use soft pack batteries, and laptop batteries use a series-parallel combination of cylindrical batteries. Currently, most mobile power supplies on the market use single lithium batteries.
[0003] After the production of the battery cell is completed, the performance and quality of the battery cell need to be tested, such as breathing cycle test, explosion-proof valve pressure test, etc. In order to simulate the actual working conditions of the battery cell in the entire module, a special fixture is required to fix the battery cell during testing.
[0004] The current fixture can only hold one type of battery cell. When the battery cell type changes, due to the different sizes of battery cells of different types, only the fixture of the corresponding size can be replaced, which makes the fixture less versatile and increases the production and purchase costs of the fixture. Utility Model Content
[0005] Based on this, it is necessary to provide a battery cell clamp to address the above technical issues.
[0006] A battery cell clamp comprises: a first battery cell clamp, a second battery cell clamp, an adjustment rod, a fixing member and a limit rod;
[0007] The first battery cell clamping plate and the second battery cell clamping plate are respectively clamped on two opposite surfaces of the battery cell, the surface of the first battery cell clamping plate is provided with a first through hole, the second battery cell clamping plate is provided with a second through hole, and the surface of the first battery cell clamping plate is provided with a strip hole, and the strip hole extends along the width direction of the first battery cell clamping plate;
[0008] The adjusting rod is disposed in the first through hole and the second through hole, the fixing member is connected to the end of the adjusting rod, and the fixing member is used to adjust the distance between the first battery core clamping plate and the second battery core clamping plate;
[0009] The limit rod is inserted into the strip hole and can slide along the strip hole. The length of the limit rod is greater than the thickness of the first battery cell clamp. The side surface of the first end of the limit rod is used to abut against the side surface of the battery cell. The limit rod is used to abut against the side surface of the battery cell to limit the position of the battery cell in the clamp.
[0010] In one of the embodiments, a raised edge portion is provided on the rod body of the limiting rod, and the raised edge portion is pressed tightly against the hole wall of the strip-shaped hole.
[0011] In one embodiment, the hole walls on both sides of the strip-shaped hole are provided with clamping grooves, the clamping grooves are close to the first surface of the first battery core clamping plate, and the raised edge is tightly pressed against the hole wall of the strip-shaped hole.
[0012] In one embodiment, sliding grooves are formed on the two side walls of the strip-shaped hole, the sliding grooves are close to the second surface of the first battery core clamp, and the raised edge is located in the clamping groove or the sliding groove.
[0013] In one embodiment, the distance between the two sliding grooves is greater than the width of the raised edge.
[0014] In one embodiment, the second end of the limiting rod protrudes out of the second surface of the first battery core clamping plate, and a limiting plate is disposed at the second end of the limiting rod, and the width of the limiting plate is greater than the width of the strip hole.
[0015] In one embodiment, the second end of the limiting rod is provided with a hooking ring.
[0016] In one embodiment, a rubber abutment sheet is disposed on the side surface of the first end of the limiting rod.
[0017] In one embodiment, a plurality of rotation grooves are provided on the side of the second battery cell clamp facing the first battery cell clamp, the bottom and side walls of the rotation groove are curved surfaces, the cross-sectional shape of the rotation groove is semicircular, a ball is rotatably provided in the rotation groove, the depth of the rotation groove is greater than the radius of the ball, and the depth of the rotation groove is less than the diameter of the ball, the opening diameter of the rotation groove is less than the diameter of the ball, the ball at least partially protrudes from the surface of the second battery cell clamp, and the ball rotates and abuts against the surface of the battery cell.
[0018] In one embodiment, the adjusting rod is provided with a threaded structure, the fixing member is a nut, and the adjusting rod is threadably connected to the nut.
[0019] In the above-mentioned battery cell clamp, the distance between the first battery cell clamp and the second battery cell clamp is changed by adjusting the rod and the fixing member to adapt to battery cells of different thicknesses. At the same time, the limit rod is adjusted to move along the strip hole, and the limit rod is changed to different positions on the surface of the first battery cell clamp to abut against the side of the battery cell, thereby limiting the movement of the battery cell inside the clamp. This allows the clamp to adapt to battery cells of different thicknesses and widths, thereby reducing the cost of purchasing the battery cell clamp. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic structural diagram of a battery cell fixture in an embodiment;
[0021] Figure 2is a cross-sectional view for illustrating the assembly relationship between the limit rod and the first battery core clamping plate in one embodiment;
[0022] Figure 3 for Figure 2 A magnified schematic diagram of part A;
[0023] Figure 4 It is a schematic structural diagram of a battery cell clamp in another embodiment. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0025] Embodiment 1
[0026] like Figure 1 As shown, a battery cell clamp is provided, which includes: a first battery cell clamp 100, a second battery cell clamp 200, an adjustment rod 300, a fixing member 400 and a limiting rod 500;
[0027] The first battery cell clamping plate 100 and the second battery cell clamping plate 200 are clamped on two opposite surfaces of the battery cell, respectively. The surface of the first battery cell clamping plate 100 is provided with a first through hole 110, and the second battery cell clamping plate 200 is provided with a second through hole 210. The surface of the first battery cell clamping plate 100 is provided with a strip hole 120, and the strip hole 120 extends along the width direction of the first battery cell clamping plate 100.
[0028] The adjusting rod 300 is disposed in the first through hole 110 and the second through hole 210 , and the fixing member 400 is connected to the end of the adjusting rod 300 , and the fixing member 400 is used to adjust the distance between the first battery cell clamping plate 100 and the second battery cell clamping plate 200 ;
[0029] The limiting rod 500 is inserted into the strip hole 120, and the limiting rod 500 can slide along the strip hole 120. The length of the limiting rod 500 is greater than the thickness of the first battery cell clamp 100. The side surface of the first end of the limiting rod 500 is used to abut against the side surface of the battery cell. The limiting rod 500 is used to abut against the side surface of the battery cell to limit the position of the battery cell in the clamp.
[0030] In this embodiment, the first battery cell clamp 100 and the second battery cell clamp 200 are arranged opposite to each other and clamped on both sides of the battery cell respectively. The first battery cell clamp 100 is provided with a plurality of first through holes 110, and the plurality of first through holes 110 are located at the four corners of the first battery cell clamp 100. The second battery cell clamp 200 is provided with a plurality of second through holes 210, and the plurality of second through holes 210 are located at the four corners of the second battery cell clamp 200. When the first battery cell clamp 100 and the second battery cell clamp 200 are clamped on both sides of the battery cell, each first through hole 110 is aligned with each second through hole 210. The two ends of the adjustment rod 300 are respectively penetrated in the first through hole 110 and the second through hole 210, and the fixing member 400 is connected to the adjustment rod 300. The fixing member 400 is used to adjust the distance between the first battery cell clamp 100 and the second battery cell clamp 200 to adapt to the thickness of the battery cell. The first battery cell clamping plate 100 and the second battery cell clamping plate 200 are relatively fixed by connecting the fixing member 400 with the adjusting rod 300 , so that the battery cell located between the first battery cell clamping plate 100 and the second battery cell clamping plate 200 is clamped and fixed.
[0031] The side of the first battery cell clamp 100 facing the second battery cell clamp 200 is the first side, and the side of the first battery cell clamp 100 facing away from the second battery cell clamp 200 is the second side. A strip hole 120 is provided between the first side and the second side of the first battery cell clamp 100, and the strip hole 120 extends along the width direction of the first battery cell clamp 100. Two limiting rods 500 are arranged in the strip hole 120, and the first ends of the limiting rods 500 are extended out of the first side of the first battery cell clamp 100. The limiting rods 500 are slid along the strip hole 120, so that the first ends of the two limiting rods 500 are respectively in contact with the two side surfaces of the battery cell, thereby limiting the position of the battery cell inside the fixture.
[0032] In one embodiment, a raised edge portion 510 is disposed on the rod body of the limiting rod 500 , and the raised edge portion 510 is pressed tightly against the hole wall of the strip-shaped hole 120 .
[0033] In this embodiment, a raised edge 510 is provided on the rod body of the limiting rod 500, and the raised edge 510 is elastically provided so that when the limiting rod 500 is inserted into the strip hole 120, the raised edge 510 is pressed against the hole wall of the strip hole 120, so that the limiting rod 500 can stably contact the side of the battery cell.
[0034] like Figure 2 and Figure 3 As shown, in one embodiment, the two side walls of the strip hole 120 are oppositely provided with snap-fit grooves 130 , the snap-fit grooves 130 are close to the first surface of the first battery cell clamping plate 100 , and the raised edge 510 is tightly pressed against the groove wall of the snap-fit groove 130 .
[0035] In this embodiment, the clamping grooves 130 are formed on the groove walls on both sides of the strip hole 120, and the clamping grooves 130 extend along the length direction of the strip hole 120. The raised edge 510 is pressed against the groove wall of the clamping groove 130. The clamping groove 130 is close to the first surface of the first battery cell clamping plate 100, so that when the limit rod 500 is pressed to abut against the side of the battery cell, the raised edge 510 is pressed against the groove wall of the clamping groove 130, and the vibration of the limit rod 500 is used to remind the first end of the limit rod 500 to protrude from the first surface of the first battery cell clamping plate 100.
[0036] like Figure 2 and Figure 3 As shown, in one embodiment, sliding grooves 140 are formed on the two side walls of the strip hole 120 , the sliding grooves 140 are close to the second surface of the first battery cell clamp 100 , and the raised edge 510 is located in the clamping groove 130 or the sliding groove 140 .
[0037] In this embodiment, a sliding groove 140 is provided on the hole wall of the strip hole 120, and the sliding groove 140 extends along the length direction of the strip hole 120. The sliding groove 140 is close to the second surface of the first battery cell clamping plate 100. When the limiting rod 500 moves in the depth direction of the strip hole 120 and the raised edge portion 510 moves from the clamping groove 130 to the sliding groove 140, the first end of the limiting rod 500 shrinks into the strip hole 120.
[0038] like Figure 2 and Figure 3 As shown, in one embodiment, the distance between the two sliding grooves 140 is greater than the width of the raised edge 510 .
[0039] In this embodiment, the distance between the two sliding grooves 140 is greater than the width of the raised edge 510. When the raised edge 510 is located in the sliding groove 140, the raised edge 510 is in a relaxed state, so that the limiting rod 500 can move along the sliding groove 140 more easily to adapt to battery cells of different widths.
[0040] like Figure 2 and Figure 3 As shown, in one embodiment, the second end of the limiting rod 500 protrudes from the second surface of the first battery cell clamp 100 , and a limiting plate 520 is disposed at the second end of the limiting rod 500 , and the width of the limiting plate 520 is greater than the width of the strip hole 120 .
[0041] In this embodiment, the limiting piece 520 is installed at the second end of the limiting rod 500, and the width of the limiting piece 520 is greater than the width of the strip hole 120. The limiting piece 520 is used to limit the second end of the limiting rod 500 from moving into the strip hole 120 to prevent the limiting rod 500 from being unable to reset.
[0042] like Figure 2 and Figure 3 As shown, in one embodiment, a hooking ring 530 is provided at the second end of the limiting rod 500 .
[0043] In this embodiment, the hooking ring 530 is disposed at the second end of the limiting rod 500 , so that the hooking ring 530 can be used to push or pull the limiting rod 500 to move relative to a direction perpendicular to the first battery cell clamping plate 100 .
[0044] like Figure 2 and Figure 3 As shown, in one embodiment, a rubber abutment sheet 540 is disposed on the side surface of the first end of the limiting rod 500 .
[0045] In this embodiment, a rubber contact piece 540 is provided at the first end of the limiting rod 500, and the rubber contact piece 540 contacts the side of the battery cell. The rubber contact piece 540 is elastic and can reduce the impact force between the limiting rod 500 and the battery cell, thereby preventing the limiting rod 500 from colliding with the battery cell and causing damage to the battery cell.
[0046] like Figure 2 As shown, in one embodiment, a plurality of rotating grooves 220 are provided on the side of the second battery cell clamp 200 facing the first battery cell clamp 100, the bottom and side walls of the rotating groove 220 are curved surfaces, the cross-sectional shape of the rotating groove 220 is semicircular, a ball 230 is rotatably provided in the rotating groove 220, the depth of the rotating groove 220 is greater than the radius of the ball 230, and the depth of the rotating groove 220 is less than the diameter of the ball 230, the opening diameter of the rotating groove 220 is less than the diameter of the ball 230, the ball 230 at least partially protrudes from the surface of the second battery cell clamp 200, and the ball 230 rotates and abuts against the surface of the battery cell.
[0047] In this embodiment, the side of the second battery cell clamping plate 200 facing the first battery cell clamping plate 100 is the first side, and a plurality of rotating grooves 220 are provided on the first side of the second battery cell clamping plate 200, and the balls 230 are rotatably installed in the rotating grooves 220, so that the balls 230 can rotate in the rotating grooves 220, and because the opening diameter of the rotating grooves 220 is smaller than the diameter of the balls 230, and the relationship between the depth of the rotating grooves 220 and the diameter of the balls 230, the balls 230 can protrude from the surface of the second battery cell clamping plate 200, and the balls 230 cannot be separated from the rotating grooves 220. When the second battery cell clamping plate 200 is clamped on the surface of the battery cell, the balls 230 rotate and abut against the surface of the battery cell. The rotation function of the balls 230 is used to facilitate adjustment of the position and orientation of the battery cell inside the fixture.
[0048] like Figure 1As shown, in one embodiment, the adjusting rod 300 is provided with a threaded structure, the fixing member 400 is a nut, and the adjusting rod 300 is threadedly connected to the nut.
[0049] In this embodiment, a threaded structure is provided on the rod body of the adjustment rod 300, and the width of one end of the adjustment rod 300 is greater than the width of the through hole, and is used to abut against the side of the first battery cell clamp 100 that faces away from the second battery cell clamp 200. After the other end of the adjustment rod 300 passes through the through hole of the first battery cell clamp 100 and the through hole of the second battery cell clamp 200 in sequence, it is threadedly connected with the adjustment rod 300 by using a nut. At this time, the nut abuts against the second battery cell clamp 200 and the side surface facing away from the first battery cell clamp 100, and the adjustment rod 300 and the nut cooperate to prevent the first battery cell clamp 100, the second battery cell clamp 200 and the battery cell from being loosened.
[0050] like Figure 4 As shown, in one embodiment, the adjusting rod 300 is provided with a threaded structure, the first end of the adjusting rod 300 passes through the first through-hole 110, and the first end of the adjusting rod 300 protrudes from the second surface of the first battery cell clamp 100, the second end of the adjusting rod 300 passes through the second through-hole 210, and the second end of the adjusting rod 300 protrudes from the second surface of the second battery cell clamp 200, the nut includes a first nut and a second nut, the first nut is threadedly connected to the first end of the adjusting rod 300, and the first nut abuts against the second surface of the first battery cell clamp 100, the second nut is threadedly connected to the second end of the adjusting rod 300, and the second nut abuts against the second surface of the second battery cell clamp 200, for limiting the first battery cell clamp 100, the second battery cell clamp 200 and the battery cell from being loosened.
[0051] In this embodiment, the first end and the second end of the adjustment rod 300 pass through the first battery cell clamp 100 and the second battery cell clamp 200 respectively, and then the first nut is threadedly connected to the first end of the adjustment rod 300, and the second nut is threadedly connected to the second end of the adjustment rod 300. The first nut abuts against the second surface of the first battery cell clamp 100, and the side of the second battery cell clamp 200 facing away from the first battery cell clamp 100 is the second surface, and the second nut abuts against the second surface of the second battery cell clamp 200. The first surface of the first battery cell clamp 100 and the first surface of the second battery cell clamp 200 abut against the surface of the battery cell respectively. Tighten the two nuts so that the first battery cell clamp 100 and the second battery cell clamp 200 clamp the battery cell.
[0052] In one embodiment, the second end of the adjustment rod 300 is provided with a threaded structure, the fixing member 400 is a threaded groove arranged on the side wall of the second through hole 210, the width of the first end of the adjustment rod 300 is greater than the diameter of the first through hole 110, and the second end of the adjustment rod 300 is threadedly connected to the threaded groove.
[0053] In this embodiment, the width of the first end of the adjustment rod 300 is greater than the width of the first through hole 110, and is used to abut against the second surface of the first battery cell clamping plate 100. The second end of the adjustment rod 300 is inserted into the second through hole 210. A thread structure is provided at the second end of the adjustment rod 300, and the adjustment rod 300 is rotated so that the second end of the adjustment rod 300 is threadedly connected with the thread groove, thereby fixing the first battery cell clamping plate 100 and the second battery cell clamping plate 200.
[0054] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0055] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.
Claims
1. A battery cell fixture, characterized in that: include: A first battery cell clamping plate, a second battery cell clamping plate, an adjustment rod, a fixing member and a limit rod; The first battery cell clamping plate and the second battery cell clamping plate are respectively clamped on two opposite surfaces of the battery cell, the surface of the first battery cell clamping plate is provided with a first through hole, the second battery cell clamping plate is provided with a second through hole, and the surface of the first battery cell clamping plate is provided with a strip hole, and the strip hole extends along the width direction of the first battery cell clamping plate; The adjusting rod is disposed in the first through hole and the second through hole, the fixing member is connected to the end of the adjusting rod, and the fixing member is used to adjust the distance between the first battery core clamping plate and the second battery core clamping plate; The limit rod is inserted into the strip hole and can slide along the strip hole. The length of the limit rod is greater than the thickness of the first battery cell clamp. The side surface of the first end of the limit rod is used to abut against the side surface of the battery cell. The limit rod is used to abut against the side surface of the battery cell to limit the position of the battery cell in the clamp.
2. The battery cell fixture according to claim 1, characterized in that: A raised edge portion is arranged on the rod body of the limiting rod, and the raised edge portion is pressed tightly against the hole wall of the strip-shaped hole.
3. The battery cell fixture according to claim 2, characterized in that: The hole walls on both sides of the strip-shaped hole are oppositely provided with clamping grooves, the clamping grooves are close to the first surface of the first battery core clamping plate, and the raised edge portion is tightly pressed against the groove wall of the clamping groove.
4. The battery cell fixture according to claim 3, characterized in that: The hole walls on both sides of the strip-shaped hole are oppositely provided with sliding grooves, the sliding grooves are close to the second surface of the first battery core clamping plate, and the raised edge is located in the clamping groove or the sliding groove.
5. A battery cell fixture according to claim 4, characterized in that: The distance between the two sliding grooves is greater than the width of the raised edge.
6. The battery cell fixture according to claim 1, characterized in that: The second end of the limiting rod protrudes out of the second surface of the first battery core clamping plate, and the second end of the limiting rod is provided with a limiting piece, and the width of the limiting piece is greater than the width of the strip hole.
7. The battery cell fixture according to claim 1, characterized in that: The second end of the limiting rod is provided with a hooking ring.
8. The battery cell fixture according to claim 1, characterized in that: A rubber abutment sheet is arranged on the side surface of the first end of the limiting rod.
9. The battery cell fixture according to claim 1, characterized in that: A plurality of rotation grooves are arranged on the side of the second battery cell clamp plate facing the first battery cell clamp plate, the bottom and side walls of the rotation groove are curved surfaces, the cross-sectional shape of the rotation groove is semicircular, a ball is rotatably arranged in the rotation groove, the depth of the rotation groove is greater than the radius of the ball, and the depth of the rotation groove is less than the diameter of the ball, the opening diameter of the rotation groove is less than the diameter of the ball, the ball at least partially protrudes from the surface of the second battery cell clamp plate, and the ball rotates and abuts against the surface of the battery cell.
10. The battery cell fixture according to any one of claims 1 to 9, characterized in that: The adjusting rod is provided with a threaded structure, the fixing piece is a nut, and the adjusting rod is threadedly connected to the nut.