Bidirectional jacking type positioning jig for battery cell or battery

Abstract

The utility model discloses a bi-directional jacking type positioning jig for a battery cell or a battery. The bi-directional jacking type positioning jig comprises a carrier body, a jacking assembly and a cover body, the carrier body is provided with a bearing structure and a positioning structure, and the cover body is provided with a main top surface. The jacking assembly comprises a first reset piece, a jacked body, a first jacking body, a second jacking body, a second reset piece and a connecting rod. The positioning structure is located between the jacked body and the first jacking body, the jacked body and the first jacking body are fixed together through the connecting rod, and the first reset piece is arranged between the jacked body and the carrier body; the second jacking body is assembled on the cover body in a buffering and telescopic mode through a second reset piece. In the covering process of the cover body, the main top surface is in linkage with the first jacking body to slide close to the positioning structure under the matching of the first resetting piece, and the first jacking body which slides is jacked on the battery or the battery cell supported by the bearing structure; meanwhile, the second jacking body is jacked on the battery or the battery cell borne by the bearing structure; and the positioning and clamping of the battery or the battery cell with large width and height tolerance are compatible.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a two-way top-pressing positioning fixture for battery cells or batteries used in the Pack assembly of soft-pack battery cells. Background Art

[0002] As we all know, the use of a carrier is indispensable in the pack assembly process of soft-pack batteries. The carrier is used to position and clamp the soft-pack batteries, thus facilitating the subsequent assembly operations of the soft-pack batteries.

[0003] Among them, in the existing carrier, it can only flexibly press on one side of the soft-pack battery cell that is separated in the width direction, and then the soft-pack battery cell is positioned on the other side that is separated in the width direction, so as to achieve the purpose of positioning and clamping the soft-pack battery cell in the width direction; and the soft-pack battery cell is separated on one side in the thickness (or height) direction by the bearing structure in the carrier, and the soft-pack battery cell is separated on the other side in the thickness (or height) direction by the upper cover in the carrier; therefore, the existing carrier cannot be compatible with the positioning and clamping of soft-pack batteries with large width and height tolerances.

[0004] Therefore, there is an urgent need for a bidirectional top-pressing positioning fixture for a cell or battery to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of the utility model is to provide a bidirectional top-pressing positioning fixture for an electric core or battery, so as to be compatible with positioning and clamping batteries or electric cores with large width and height tolerances.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a two-way top-pressing positioning fixture for a cell or battery, comprising a carrier body, a top-pressing assembly, and a cover body that rotates and opens and closes relative to the carrier body around a rotation center line. The rotation center line is arranged along a first direction, the carrier body is provided with a supporting structure for supporting batteries or cells and a positioning structure for positioning the batteries or cells supported by the supporting structure in a second direction, and the cover body is provided with a main top surface. The top-pressing assembly comprises a first reset member, a top-receiving body, a first top-pressing body, a second top-pressing body, a second reset member, and a connecting rod. The top-receiving body is linked to the main top surface, the first top-pressing body is arranged opposite to the positioning structure in the second direction, and the positioning structure is located between the top-receiving body and the first top-pressing body in the second direction. The connecting rod extends along the second direction and fixes the support body and the first pressure body together, the first reset member is arranged between the support body and the carrier body, and the first reset member enables the support body to drive the first pressure body to slide close to the positioning structure through the connecting rod; the second pressure body is assembled on the cover body in a buffered and telescopic manner with the help of the second reset member; in the process of closing the cover body, the main top surface, with the cooperation of the first reset member, links the support body to drive the first pressure body to slide close to the positioning structure, and the sliding first pressure body presses on the battery or battery cell supported by the support structure; at the same time, the second pressure body presses on the battery or battery cell supported by the support structure from a direction opposite to the support structure.

[0007] Compared with the prior art, during the closing process of the cover body, the main top surface, in cooperation with the first reset member, drives the supported body through the connecting rod to drive the first pressing body to slide close to the positioning structure. The sliding first pressing body and the positioning structure position and clamp the battery or battery cell carried by the supporting structure in the second direction, which has a single reference edge effect on the battery or battery cell. At the same time, the second pressing body presses on the battery or battery cell carried by the supporting structure from the direction opposite to the supporting structure, thereby achieving the positioning and flexible clamping of the battery or battery cell. Therefore, it is compatible with the positioning and clamping of batteries or battery cells with large width and height tolerances, and avoids damage to the battery or battery cell. Since the pressure of the first pressing body on the battery or battery cell is controlled by the first reset member, and the pressure of the second pressing body on the battery or battery cell is controlled by the second reset member, the pressure on the battery or battery cell has the advantage of controllable pressure.

[0008] Preferably, the top-receiving body extends along the first direction, and a rolling bearing is provided on the top-receiving body for linkage with the main top surface; the connecting rod is slidably inserted into the carrier body along the second direction; the first reset member is a spring provided on the connecting rod, and a stop boss is provided at the position where the connecting rod is connected to the top-receiving body, and the spring also elastically abuts between the carrier body and the stop boss.

[0009] Preferably, the main top surface is a cylinder, the directrix of the cylinder includes an arc and / or a line segment, the straight generatrix of the cylinder is parallel to the rotation center line; and the line segment is tangent to the arc.

[0010] Preferably, the cover body is provided with a receiving cavity, the second pressing body can be slidably assembled in the receiving cavity along the thickness direction of the cover body, the second restoring member is located in the receiving cavity, and the second restoring member makes the second pressing body partially protrude from the cover body.

[0011] Preferably, one of the second pressing body and the side wall of the accommodating cavity is provided with a guide limit slot for controlling the sliding range of the second pressing body, and the other of the second pressing body and the side wall of the accommodating cavity is correspondingly provided with a guide limit member placed in the guide limit slot.

[0012] Preferably, the second reset member is a compression spring elastically abutting between the cavity end wall of the accommodating cavity and the second pressing body; the second pressing body is provided with a sleeve cavity for the compression spring to be sleeved, and the cavity opening of the sleeve cavity faces the cavity end wall of the accommodating cavity.

[0013] Preferably, a magnet is mounted on one side of the cover and the carrier body adjacent to the rotation centerline, and the magnet is magnetically attracted to the other of the cover and the carrier body when the cover is opened to a preset position relative to the carrier body, thereby maintaining the cover in the preset position.

[0014] Preferably, one side of the carrier body has a first lug and a second lug in the same direction as the positioning structure and separated along the first direction, and one side of the cover body is correspondingly provided with a pivot protrusion placed between the first lug and the second lug, and the pivot protrusion is pivoted to the first lug and the second lug at the same time to form the rotation center line, and the main top surface is located on the pivot protrusion; the first direction and the second direction are perpendicular to each other.

[0015] Preferably, one of the cover and the carrier body is provided with a releasable hook, and the other of the cover and the carrier body is provided with a matching card structure that cooperates with the hook, and the hook is engaged with the matching card structure when the cover is covered on the carrier body.

[0016] Preferably, the card matching structure is provided with a first inclined surface, and the hook is provided with a second inclined surface cooperating with the first inclined surface. When the cover is closed, the first inclined surface pushes the second inclined surface to make the hook slide along the card removal direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a three-dimensional diagram of a two-way top-pressing positioning fixture for a cell or battery when the cover is in an open state.

[0018] Figure 2 yes Figure 1 The shown diagram shows the state of the two-way top-pressure positioning fixture for the battery cell or battery after the battery cell is removed from the supporting structure.

[0019] Figure 3 yes Figure 2 3D exploded view of .

[0020] Figure 4 yes Figure 3 Further decomposed three-dimensional exploded diagram.

[0021] Figure 5 The utility model is a three-dimensional diagram of the bidirectional top-pressing positioning fixture for the electric core or battery after the cover body is closed.

[0022] Figure 6 yes Figure 5 The shown diagram is a top-down plan view of a bidirectional top-pressure positioning fixture for a cell or battery.

[0023] Figure 7 It is along Figure 6 Internal view cut along the midline DD.

[0024] Figure 8 It is along Figure 6 Internal view cut along the midline EE.

[0025] Figure 9 The utility model is a three-dimensional diagram of a cover body in a two-way pressing positioning fixture for a cell or battery, and a second pressing body, a second resetting member and a matching card structure on the cover body.

[0026] Figure 10 yes Figure 9 3D exploded view of .

[0027] Figure 11 yes Figure 10 Exploded three-dimensional diagram from another angle.

[0028] Figure 12 yes Figure 9 Plan view viewed in the direction of arrow F.

[0029] Figure 13 yes Figure 12 Make a deformed plan view.

[0030] Figure 14 yes Figure 12 Another deformed plan view. DETAILED DESCRIPTION

[0031] In order to explain the technical content and structural features of the present invention in detail, the following is a further description in conjunction with the embodiments and the accompanying drawings.

[0032] See also Figure 1 、 Figure 2 and Figure 5 As an example, the bidirectional top-pressing positioning fixture 100 for a cell or battery of the present invention includes a carrier body 10, a top-pressing assembly 20, and a cover body 30 that rotates and opens and closes relative to the carrier body 10 around a rotation center line C1, and a main top surface 31 is provided on the cover body 30.

[0033] The rotation center line C1 is arranged along the first direction (as indicated by the double arrow A), for example, Figures 1 to 5 As an example, the first direction is the front-rear direction of the carrier body 10; obviously, according to actual needs, the first direction can also be the left-right direction of the carrier body 10, so it is not necessary to use Figures 1 to 5 Limits shown.

[0034] At the same time, the carrier body 10 is provided with a supporting structure 11 for supporting the battery cell 200 and a positioning structure 12 for positioning the battery cell 200 supported by the supporting structure 11 in a second direction (as indicated by the double arrow B). Figures 1 to 5 As an example, the second direction is the left-right direction of the carrier body 10 , and the positioning structure 12 positions the battery cell 200 from the left side of the carrier body 10 .

[0035] The top-pressing assembly 20 includes a first reset member 21, a top-receiving body 22, a first top-pressing body 23, a second top-pressing body 24, a second reset member 25 and a connecting rod 26. The top-receiving body 22 is linked with the main top surface 31 to meet the need of the main top surface 31 to link the top-receiving body 22 to move. The first top-pressing body 23 is arranged relative to the positioning structure 12 in the second direction to meet the need of the first top-pressing body 23 and the positioning structure 12 to clamp the battery cell 200 carried by the supporting structure 11 in the second direction; and the positioning structure 12 is located between the top-receiving body 22 and the first top-pressing body 23, so that the top-receiving body 22 and the first top-pressing body 23 are arranged on opposite sides with the positioning structure 12 as the center. The connecting rod 26 extends along the second direction, and the connecting rod 26 also fixes the top-receiving body 22 and the first top-pressing body 23 together. Optionally, Figure 7In the embodiment, one end of the connecting rod 26 is fixedly connected to the support body 22, while the other end is fixedly connected to the first pressure body 23, so that the support body 22 and the first pressure body 23 are fixed together through the connecting rod 26, thereby meeting the need for the three to slide together relative to the carrier body 10. In addition, the first reset member 21 is provided between the support body 22 and the first pressure body 23. The first reset member 21 enables the support body 22 to drive the first pressure body 23 to slide closer to the positioning structure 12 through the connecting rod 26, so that the first pressure body 23 has a flexible buffering effect on the pressure of the battery cell 200. On the one hand, it protects the battery cell 200, and on the other hand, it can accommodate the tolerance of the battery cell 200 in the second direction. In addition, the second pressure body 24 is assembled to the cover body 30 in a buffered and telescopic manner with the help of the second reset member 25, so that the second pressure body 24 has a flexible buffering effect on the pressure of the battery cell 200.

[0036] Therefore, during the closing process of the cover 30, the main top surface 31, in cooperation with the first restoring member 21, drives the supported body 22 to drive the first pressing body 23 to slide close to the positioning structure 12, and the sliding first pressing body 23 presses on the battery 200 carried by the supporting structure 11 from the second direction, so that the first pressing body 23 and the positioning structure 12 can clamp the battery cell 200 on the supporting structure 11 together; at the same time (that is, during the closing process of the cover 30), the second pressing body 24 presses on the battery cell 200 carried by the supporting structure 11 from the direction opposite to the supporting structure 11, so that the battery cell 200 can be pressed in the third direction (see FIG. Figure 7 Therefore, after the cover 30 is closed, the battery cell 200 is clamped in the second direction and the third direction, and the state is shown. Figure 7 It should be noted that the design of the first restoring member 21 and the second restoring member 25 also provides the advantage of controllable pressure exerted by the first pressing member 23 and the second pressing member 24 on the battery cell 200. Furthermore, with the cooperation of the first restoring member 21, the pressing member 22 can maintain contact with the main top surface 31 during the opening and closing of the cover 30. More specifically, as follows:

[0037] like Figure 3 and Figure 4 As shown in FIG. 1 , as an example, the top receiving body 22 extends along the first direction, and a rolling bearing 27 is provided on the top receiving body 22 to cooperate with the main top surface 31. With the help of the rolling bearing 27, the linkage between the main top surface 31 and the top receiving body 22 is smoother and more reliable, avoiding defects such as jamming. Figure 7 As an example, the connecting rod 26 is slidably inserted into the carrier body 10 along the second direction, so as to improve the smoothness and reliability of the sliding of the top body 22 and the first top pressure body 23 through the sliding cooperation between the connecting rod 26 and the carrier body 10; Figure 7In the embodiment, the connecting rod 26 is located below the supporting structure 11, so that the arrangement of the connecting rod 26 on the carrier body 10 is more reasonable. In addition, the first reset member 21 is a spring that is sleeved on the connecting rod 26. A stop boss 261 is provided at the position where the connecting rod 26 is connected to the support body 22. The spring is also elastically abutted between the carrier body 10 and the stop boss 261. Figure 7 As shown, the main top surface 31 is effectively improved in cooperation with the first reset member 21, and the linkage of the top body 22 drives the first top pressure body 23 to slide close to the positioning structure 12. Obviously, according to actual needs, the first reset member 21 can also be composed of two magnets arranged to repel each other. Figure 7 Limits shown.

[0038] like Figure 12 As shown, as an example, the main top surface 31 is a cylinder, that is, the cylinder number is also 31, and the straight main line C2 of the cylinder 31 is parallel to the rotation center line C1; the directrix 311 of the cylinder 31 includes an arc 3111, a line segment 3112 and a line segment 3112', and the line segment 3112 and the line segment 3112' are arranged tangent to the arc 3111, and the arc 3111 is connected between the line segment 3112 and the line segment 3112'; this design allows the rolling bearing 27 to abut against the part of the cylinder 31 where the line segment 3112 is located when the cover body 30 is in the open state, providing a hovering effect for the cover body 30 in the open state; in addition, with the help of the part of the cylinder 31 where the line segment 3112' is located, when the cover body 30 is in the closed state, the cylinder 31 drives the first pressing body 23 to be in the position closest to the positioning structure 12. In addition, the cylindrical surface 31 where the arc 3111 is located plays a smooth transition role, ensuring the smoothness of the cylindrical surface 31 linked to the rolling bearing 27. Obviously, according to actual needs, the cylindrical surface can also be other, for example, Figure 13 In the figure, the cylindrical surface 31' comprises a line segment 3112 and an arc 3111 arranged tangentially, and the arc diameter of the arc 3111 is greater than Figure 12 The arc diameter of the arc 3111 in ; For example, Figure 14 In the figure, the cylindrical surface 31'' includes an arc 3111, an arc 3111' and a line segment 3112. The arc 3111 is tangentially connected between the line segment 3112 and the arc 3111'. In addition, the arc diameter of the arc 3111' is smaller than the arc diameter of the arc 3111. Therefore, by different designs of the directrix 311 (311', 311'') of the cylindrical surface 31 (31', 31''), different speeds of clamping the battery cell 200 and the force influence can be achieved, thereby reducing the risk of force influence on the side of the battery cell 200. It should be noted that although Figures 12 to 14It is shown that the directrix 311 (311', 311'') of the cylinder 31 (31', 31'') includes arcs and line segments. Obviously, according to actual needs, the directrix 311 (311', 311'') can also include only arcs or line segments. Figures 12 to 14 Limits shown.

[0039] like Figure 4 and Figure 10 As shown in FIG. 3 , as an example, the cover 30 is provided with a receiving cavity 32. In this case, the second pressing body 24 can be slidably assembled in the receiving cavity 32 along the thickness direction of the cover 30. The second restoring member 25 is located in the receiving cavity 32. The second restoring member 25 makes the second pressing body 24 partially protrude from the cover 30, thereby effectively preventing the cover 30 from contacting the battery cell 200 during the process of the second pressing body 24 pressing the battery cell 200. Specifically, Figure 4 and Figure 10 As an example, the side wall 321 of the accommodating cavity 32 is provided with a guide limit slot 322 for controlling the sliding range of the second pressing body 24. The second pressing body 24 is correspondingly provided with a guide limit member 241 placed in the guide limit slot 322. By means of the cooperation between the guide limit member 241 and the guide limit slot 322, the second pressing body 24 is prevented from accidentally falling off from the cover body 30, and a guide is provided for the sliding of the second pressing body 24 on the cover body 30, thereby improving the smoothness of the telescopic sliding of the second pressing body 24 on the cover body 30. More specifically, Figure 10 and Figure 11 In the embodiment, the guide limiter 241 is inserted into the second pressing body 24, and its two ends extend out of the second pressing body 24. Correspondingly, the two opposite side walls 321 of the accommodating cavity 32 are provided with guide limiter slots 322 to achieve the guide limiter on the two opposite sides of the second pressing body 24. In addition, the guide limiter 241 is inserted into the second pressing body 24, and its two ends extend out of the second pressing body 24. Correspondingly, the number of guide limiters 241 used when guiding and limiting on both sides is simplified. In addition, the second reset member 25 is a compression spring that elastically abuts against the cavity end wall 323 of the accommodating cavity 32 and between the second pressing body 24. Optionally, Figure 11 As an example, the second pressing body 24 is provided with a sleeve cavity 242 for the compression spring to be sleeved, and the cavity opening of the sleeve cavity 242 faces the cavity end wall 323 of the accommodating cavity 32. This design makes the expansion and contraction deformation of the second reset member 25 smoother and more reliable. It should be noted that although Figure 10 It shows that the guide limiting slot 322 is formed by the cavity side wall 321 and the guide limiting member 241 is provided by the second top pressure body 24; Obviously, according to actual needs, the positions of the guide limiting slot 322 and the guide limiting member 241 can be swapped, that is, the guide limiting slot 322 is formed by the second top pressure body 24, and the guide limiting member 241 is provided by the cavity side wall 321, so it is not necessary to Figure 10 The illustration is limited; in addition, the second reset member 25 may also be composed of two magnets arranged to repel each other magnetically.

[0040] In order to make the first pressing body 23 and the second pressing body 24 better protect the battery cell 200 from the pressing, Figure 7 As an example, a first protective film structure 231 is provided on the first top pressure body 23, and the part of the second top pressure body 24 protruding from the cover body 30 is made into a second protective film structure 242. The first protective film structure 231 and the second protective film structure 242 are both made of anti-static materials, but are not limited to this.

[0041] like Figures 1 to 4 As shown, as an example, one side of the carrier body 10 has the same orientation as the positioning structure 12 (for example, but not limited to Figures 1 to 4 The cover 30 has a first lug 13 and a second lug 14 spaced apart along the first direction. A pivoting protrusion 30a is provided on one side of the cover 30 and is disposed between the first lug 13 and the second lug 14. The pivoting protrusion 30a is pivotally connected to the first lug 13 and the second lug 14 to form the aforementioned rotation center line C1. As an example, Figure 3 and Figure 4 In the embodiment, the pivoting projection 30a is pivotally connected to the first and second lugs 13, 14 via a shaft 15. One end of the shaft 15 is fixedly connected to the first lug 13, and the other end of the shaft 15 is fixedly connected to the second lug 14. In this case, the pivoting projection 30a rotates about the shaft 15, and the axis of the shaft 15 forms the rotation centerline C1. Obviously, the shaft 15 can also be fixed to the pivoting projection 30a, and the ends of the shaft 15 are then pivotally connected to the first and second lugs 13, 14, respectively. When the cover 30 is provided with the pivoting projection 30a, the main top surface 31 is located on the pivoting projection 30a. By virtue of the pivoting projection 30a being simultaneously pivotally connected to the first and second lugs 13, 14, both sides of the pivoting projection 30a are supported, thereby improving the reliability and smoothness of the rotation of the cover 30.

[0042] like Figures 1 to 4 and Figures 9 and 10 As shown in FIG. 1 , as an example, the carrier body 10 is provided with a hook 50 that can be released, and the cover 30 is provided with a matching latch structure 60 that cooperates with the hook 50; with the help of the hook 50 and the matching latch structure 60, the cover 30 and the carrier body 10 are locked together after closing, preventing the cover 30 from opening accidentally. Figure 9 and Figure 10As an example, the card matching structure 60 is provided with a first inclined surface 61, and the hook 50 is provided with a second inclined surface 51 that matches the first inclined surface 61. When the cover 30 is closed, the first inclined surface 61 pushes the second inclined surface 51 to make the hook 50 slide along the card removal direction, thereby making it more convenient for the hook 50 to automatically engage with the card matching structure 60. More specifically, Figures 1 to 5 As an example, the hook 50 is fixed on the operating rod 52 and forms an integrated structure with the operating rod 52. In addition, a return spring 53 is provided between the operating rod 52 and the carrier body 10, so that when the operator releases the force on the operating rod 52, the return spring 53 drives the operating rod 52 to slide and reset the hook 50 together. Figure 8 In the embodiment, the operating rod 52 is slidably mounted on the carrier body 10 along the first direction, but the present invention is not limited thereto. It should be noted that although the accompanying drawings show that the hook 50 is mounted on the carrier body 10 and the latching structure 60 is mounted on the cover 30, it is clear that, depending on actual needs, the positions of the hook 50 and the latching structure 60 can also be reversed, that is, the hook 50 is mounted on the cover 30 and the latching structure 60 is mounted on the carrier body 10. Therefore, the present invention is not limited to the accompanying drawings.

[0043] like Figure 3 and Figure 4 As shown, as an example, a magnet 40 is mounted on one side of the cover 30 adjacent to the rotation center line C1. The magnet 40 is positioned when the cover 30 is opened to a preset position relative to the carrier body 10 (see FIG. Figure 1 and Figure 2 As shown in FIG, the magnet 40 is magnetically attracted to the carrier body 10, for example, to the side wall 16 of the carrier body 10, so that the cover 30 maintains the preset position, effectively improving the convenience of operation. It should be noted that, according to actual needs, the magnet 40 can be set on the carrier body 10, so it is not necessary to Figure 3 and Figure 4 Limits shown.

[0044] The working principle of the bidirectional top-pressing positioning fixture for battery cells or batteries of the present invention is described with reference to the accompanying drawings:

[0045] When you want to Figure 1 The cell or battery in the open state is switched to the position by using the two-way top pressure positioning fixture 100. Figure 5In the covered state shown, the battery cell 200 is first placed on the supporting structure 11 and positioned by the positioning structure 12; then, the cover body 30 is rotated around the rotation center line C1 to close the cover, and the main top surface 31 (31', 31'') of the rotating cover body 30, in cooperation with the first reset member 21, drives the top body 22 to drive the first pressing body 23 to slide close to the positioning structure 12 through the connecting rod 26, so that the sliding first pressing body 23, under the action of the force provided by the first reset member 21, jointly clamps the battery cell 200 carried by the supporting structure 11 from the first direction with the positioning structure 12.

[0046] At the same time, in the process of the first pressing body 23 and the positioning structure 12 jointly clamping the battery cell 200 carried by the supporting structure 11 from the first direction, the cover body 30 also causes the second pressing body 24 to clamp the battery cell 200 carried by the supporting structure 11 from the third direction together with the supporting structure 11 from the direction opposite to the supporting structure 11, so the battery cell 200 is positioned and clamped. Figure 7 When the battery cell 200 is positioned and clamped, the hook 50 is engaged with the matching clamp structure 60 to prevent the cover 30 from rotating in the opening direction, the first restoring member 21 is in an extended state, and the second restoring member 25 is in a compressed state.

[0047] When you want to Figure 5 The cell or battery in the covered state is switched to the position by the two-way top-pressing positioning fixture 100. Figure 1 In the open state shown, the operator operates the operating lever 52, so that the operating lever 52 pushes the return spring 53 to compress and drives the hook 50 to disengage from the matching structure 60, thereby allowing the cover 30 to rotate relative to the carrier body 10 around the rotation center line C1 to Figure 1 The state shown. Figure 1 During the illustrated state, the main top surface 31 (31', 31") drives the support member 22 via the connecting rod 26 to cause the first pressing member 23 to slide away from the positioning structure 12. The sliding first pressing member 23 releases the pressure on the battery cell 200 and simultaneously compresses the first restoring member 21. Furthermore, the second pressing member 24 automatically returns to its original position due to the restoring force provided by the second restoring member 25.

[0048] Compared with the prior art, during the closing process of the cover body 30 (30', 30''), the main top surface 31 (31', 311'') drives the top body 22 in conjunction with the first reset member 21 to drive the first pressing body 23 to slide close to the positioning structure 12 through the connecting rod 26, and the sliding first pressing body 23 and the positioning structure 12 position and clamp the battery cell 200 carried by the supporting structure 11 in the second direction, and have a single reference edge effect on the battery cell 200; at the same time, the second pressing body 24 presses on the battery cell 200 carried by the supporting structure 11 from a direction opposite to the supporting structure 11; the positioning and flexible clamping purposes of the battery cell 200 are achieved, so it is compatible with the positioning and clamping of battery cells 200 with large width and height tolerances, and avoids damage to the battery cell 200. Since the pressing force of the first pressing body 23 on the battery cell 200 is controlled by the first restoring member 21 , and the pressing force of the second pressing body 24 on the battery cell 200 is controlled by the second restoring member 25 , the pressing force on the battery cell 200 has the advantage of controllable pressure.

[0049] In addition, Figure 7 In the figure, as an example, although it is shown that the supporting structure 11 and the positioning structure 12 together constitute an integrated structure to simplify the manufacturing process of the supporting structure 11 and the positioning structure 12; obviously, according to actual needs, the supporting structure 11 and the positioning structure 12 can also be manufactured separately, and then fixed together by assembly. In addition, the first direction, the second direction and the third direction together constitute the X-axis direction, the Y-axis direction and the Z-axis direction in the three-dimensional coordinate system. In addition, although the accompanying drawings show that the two-way top-pressing positioning fixture 100 for the battery cell or battery of the present invention is used for positioning and clamping the battery cell 200, it is obvious that it can also be adapted for positioning and clamping the battery. When the rolling bearing 27 is deleted, the top body 22 and the main top surface 31 are linked to cooperate.

[0050] The above disclosure is only a preferred embodiment of the present invention and cannot be used to limit the scope of the rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope covered by the present invention.

Claims

1. A two-way pressing positioning fixture for a cell or battery, comprising a carrier body, a pressing assembly, and a cover body that rotates and opens and closes relative to the carrier body around a rotation centerline; the rotation centerline is arranged along a first direction, the carrier body is provided with a supporting structure for supporting the battery or cell and a positioning structure for positioning the battery or cell supported by the supporting structure in a second direction, the cover body is provided with a main top surface, the pressing assembly comprises a first restoring member, a pressing body that cooperates with the main top surface, and a first pressing body arranged opposite to the positioning structure in the second direction; characterized in that The pressing assembly further includes a second pressing body, a second resetting member and a connecting rod, wherein the positioning structure is located between the pressing body and the first pressing body in the second direction, the connecting rod extends along the second direction and fixes the pressing body and the first pressing body together, the first resetting member is arranged between the pressing body and the carrier body, the first resetting member enables the pressing body to drive the first pressing body to slide close to the positioning structure through the connecting rod; the second pressing body is assembled to the cover body in a buffered and telescopic manner with the help of the second resetting member; in the process of closing the cover body, the main top surface, under the cooperation of the first resetting member, links the pressing body to drive the first pressing body to slide close to the positioning structure, and the sliding first pressing body presses on the battery or battery cell carried by the supporting structure; at the same time, the second pressing body presses on the battery or battery cell carried by the supporting structure from a direction opposite to the supporting structure.

2. The two-way top-pressing positioning fixture for a cell or battery according to claim 1, characterized in that: The top-receiving body extends along the first direction, and a rolling bearing is provided on the top-receiving body and cooperates with the main top surface; the connecting rod is slidably inserted into the carrier body along the second direction; the first reset member is a spring provided on the connecting rod, and a stop boss is provided at the position where the connecting rod is connected to the top-receiving body, and the spring also elastically abuts between the carrier body and the stop boss.

3. The two-way top-pressing positioning fixture for a cell or battery according to claim 1, characterized in that: The main top surface is a cylinder, the directrix of the cylinder includes an arc and / or a line segment, the straight generatrix of the cylinder is parallel to the rotation center line; and the line segment is tangent to the arc.

4. The two-way top-pressing positioning fixture for a cell or battery according to claim 1, characterized in that: The cover body is provided with an accommodating cavity, the second pressing body can be slidably assembled in the accommodating cavity along the thickness direction of the cover body, the second restoring member is located in the accommodating cavity, and the second restoring member makes the second pressing body partially protrude from the cover body.

5. The two-way top-pressing positioning fixture for a cell or battery according to claim 4, characterized in that: One of the second pressing body and the side wall of the accommodating cavity is provided with a guide limit slot for controlling the sliding range of the second pressing body, and the other of the second pressing body and the side wall of the accommodating cavity is correspondingly provided with a guide limit member placed in the guide limit slot.

6. The two-way top-pressing positioning fixture for a cell or battery according to claim 4, characterized in that: The second restoring member is a compression spring elastically abutting between the cavity end wall of the accommodating cavity and the second pressing body; the second pressing body is provided with a sleeve cavity for the compression spring to be sleeved, and the cavity opening of the sleeve cavity faces the cavity end wall of the accommodating cavity.

7. The two-way top-pressing positioning fixture for a cell or battery according to claim 1, characterized in that: A magnet is mounted on one side of the cover and the carrier body adjacent to the rotation centerline. When the cover is opened to a preset position relative to the carrier body, the magnet is magnetically attracted to the other of the cover and the carrier body, thereby maintaining the cover in the preset position.

8. The two-way top-pressing positioning fixture for a cell or battery according to claim 1, characterized in that: One side of the carrier body has a first lug and a second lug that are oriented in the same direction as the positioning structure and are separated along the first direction. One side of the cover body is correspondingly provided with a pivot protrusion placed between the first lug and the second lug. The pivot protrusion is pivoted to the first lug and the second lug at the same time to form the rotation center line. The main top surface is located on the pivot protrusion; the first direction and the second direction are perpendicular to each other.

9. The two-way top-pressing positioning fixture for a cell or battery according to claim 1, characterized in that: One of the cover and the carrier body is provided with a releasable hook, and the other of the cover and the carrier body is provided with a matching card structure that cooperates with the hook. The hook is engaged with the matching card structure when the cover is covered on the carrier body.

10. The two-way top-pressing positioning fixture for a cell or battery according to claim 9, characterized in that: The card matching structure is provided with a first inclined surface, and the hook is provided with a second inclined surface matching the first inclined surface. When the cover is closed, the first inclined surface pushes the second inclined surface to make the hook slide along the card removal direction.

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