Battery cell positioning device and battery cell testing device

Abstract

The utility model provides a battery cell positioning device and a battery cell testing device, the battery cell positioning device is used for positioning a battery cell, the battery cell positioning device comprises: a base on which the battery cell is arranged; the bracket is arranged on the base; the pressing mechanism is arranged on the bracket in a lifting manner; the first conduction piece is arranged on the pressing mechanism and faces the battery cell, and the pressing mechanism is provided with a descending position for driving the first conduction piece to be in contact with a connector of the battery cell and an ascending position for driving the first conduction piece to be separated from the connector; the second conduction piece is arranged on the base and faces the battery cell, when the pressing mechanism is located at the descending position, the second conduction piece is in contact fit with the connector, and when the pressing mechanism is located at the ascending position, the second conduction piece is separated from the connector. According to the technical scheme of the invention, the problem that the conduction structure is easy to damage due to the small contact area between the conduction structure and the connector and the large conduction current when the battery cell is tested in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell testing, and in particular to a battery cell positioning device and a battery cell testing device. Background Art

[0002] When testing a battery cell, it is necessary to use a battery cell positioning structure to position the battery cell. The battery cell positioning is generally achieved through a battery cell placement slot. At the same time, a test probe is also required to contact the battery cell connector to achieve connection between the battery cell and the battery tester.

[0003] In the related art, two interfaces are provided on the battery cell connector, and a probe is required to perform contact test on each interface separately. This makes it easy for the probe to turn black or burn when the current is large, thus affecting the long-term use of the probe. Utility Model Content

[0004] The main purpose of the utility model is to provide a battery cell positioning device and a battery cell testing device to solve the problem in the related art that the conducting structure is easily damaged due to the small contact area between the conducting structure and the connector and the large conducting current when testing the battery cell.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a battery cell positioning device is provided for positioning the battery cell, and the battery cell positioning device comprises: a base, on which the battery cell is arranged; a bracket, on which the bracket is arranged; a pressing mechanism, which is arranged on the bracket in a liftable manner; a first conductive member, which is arranged on the pressing mechanism and faces the battery cell, and the pressing mechanism has a descending position for driving the first conductive member to contact with a connector of the battery cell and an ascending position for driving the first conductive member to separate from the connector; a second conductive member, which is arranged on the base and faces the battery cell, and when the pressing mechanism is in the descending position, the second conductive member contacts and cooperates with the connector, and when the pressing mechanism is in the ascending position, the second conductive member is separated from the connector.

[0006] Furthermore, the base includes a first mounting seat and a second mounting seat connected to the first mounting seat, the bracket is arranged on the first mounting seat, the second mounting seat is located between the pressing mechanism and the first mounting seat, the battery cell is arranged on the second mounting seat, and the second conductive member is arranged on the first mounting seat.

[0007] Furthermore, the second mounting seat can be floatingly arranged on the first mounting seat, and the second conductive member is passed through the second mounting seat. When the pressing mechanism is in a lowered position, the first conductive member contacts and cooperates with the first side of the connector, and the second conductive member contacts and cooperates with the second side of the connector. When the pressing mechanism is in an ascending position, the first conductive member is disconnected from the first side of the connector, and the second conductive member is disconnected from the second side of the connector.

[0008] Furthermore, a positioning groove is provided on the second mounting seat, the connector is arranged in the positioning groove, the second conductive member includes a first contact rod, and a guide hole is provided at the bottom of the positioning groove for guiding and cooperating with the first contact rod, and the guide hole connects the inside of the positioning groove with the outside of the second mounting seat.

[0009] Furthermore, the pressing mechanism includes a lifting member arranged on the bracket and a pressing member arranged on the lifting member, the upper end of the pressing member is connected to the lifting member, and the first conductive member is arranged at the lower end of the pressing member. When the pressing mechanism is in the lowered position, the pressing member squeezes the second mounting seat to move toward the direction close to the first mounting seat so that the second conductive member contacts and cooperates with the second side of the connector.

[0010] Furthermore, the battery cell positioning device also includes a reset member arranged between the second mounting seat and the first mounting seat, the reset member applies an elastic force to the second mounting seat to move the second mounting seat away from the first mounting seat, and when the pressing mechanism is in the raised position, the first conductive member is disconnected from the first side of the connector, and under the action of the reset member, the second conductive member is disconnected from the second side of the connector.

[0011] Furthermore, the lifting member includes a cylinder body and a lifting rod arranged on the cylinder body, the pressing member includes a pressing part located on one side of the cylinder body and a connecting part connecting the pressing member and the lifting rod, and the battery cell positioning device also includes a first positioning structure arranged between the cylinder body and the pressing member.

[0012] Furthermore, the battery cell positioning device also includes a second positioning structure arranged between the pressing piece and the second mounting seat.

[0013] Furthermore, the pressing mechanism also includes an installation space, which is arranged at the second end of the pressing piece. Part of the structure of the first conductive piece is arranged in the installation space. The first conductive piece includes a second contact rod, which extends out of the installation space to contact and cooperate with the connector of the battery cell.

[0014] Furthermore, the battery cell positioning device also includes a fixing member for fixing the first conductive member to the lower end of the pressing mechanism.

[0015] According to another aspect of the utility model, a battery cell testing device is provided, including: a battery tester and a battery cell positioning device, the battery cell positioning device is the above-mentioned battery cell positioning device, and the battery tester is connected to both the first conductive member and the second conductive member.

[0016] By applying the technical solution of the utility model, the battery cell and the bracket are both arranged on the base. The pressing mechanism can be raised and lowered on the base. The pressing mechanism is provided with a first conductive member, which is arranged toward the battery cell. The base is provided with a second conductive member, which is arranged toward the battery cell. The pressing mechanism has a descending position and an ascending position. When the pressing mechanism is in the descending position, the pressing mechanism drives the first conductive member to contact with the connector of the battery cell, and the second conductive member contacts and cooperates with the connector. When the pressing mechanism is in the ascending position, the pressing mechanism drives the first conductive member to separate from the connector, and the second conductive member also separates from the connector. Through the above arrangement, the base enables the battery cell and the bracket to be stable in position. The pressing mechanism is arranged on the bracket, and the bracket is arranged on the base, so that the pressing mechanism can be stably raised and lowered on the bracket. When the pressing mechanism is in the descending position, the first conductive member and the second conductive member can contact and cooperate with the connector. When the pressing mechanism is in the ascending position, the first conductive member and the second conductive member can separate from the connector. The first conductive member and the second conductive member are in contact with the connector at the same time, which can increase the contact area with the connector during the battery cell test and avoid the first conductive member and the second conductive member from being damaged due to the large current. Therefore, the technical solution of the present application effectively solves the problem in the related art that the conductive structure is easily damaged due to the small contact area between the conductive structure and the connector and the large conductive current during the battery cell test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A three-dimensional schematic diagram of an embodiment of a battery cell positioning device according to the utility model is shown;

[0019] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of a second mounting seat of a cell positioning device;

[0020] Figure 3 Shows Figure 2 A partial enlarged schematic diagram of the second mounting base at A;

[0021] Figure 4 Shows Figure 1 A schematic front view of a cell positioning device;

[0022] Figure 5 Shows Figure 1 A schematic diagram of the three-dimensional structure of the second mounting seat, the first connecting piece and the second connecting piece of the battery cell positioning device;

[0023] Figure 6 Shows Figure 5A partial enlarged schematic diagram of the B portion of the battery cell positioning device;

[0024] Figure 7 Shows Figure 1 A schematic diagram of the exploded structure of the pressing mechanism of the battery cell positioning device;

[0025] Figure 8 Shows Figure 1 Schematic diagram of the three-dimensional structure of the battery cell positioning device with the pressing mechanism in the raised position.

[0026] The above drawings include the following reference numerals:

[0027] 1. Battery cell; 2. Connector; 10. Base; 11. First mounting seat; 12. Second mounting seat; 121. Positioning groove; 1211. Guide hole; 20. Bracket; 30. Pressing mechanism; 31. Lifting member; 311. Cylinder body; 312. Lifting rod; 32. Pressing member; 321. Pressing part; 322. Connecting part; 33. Installation space; 40. First conducting member; 41. Second contact rod; 50. Second conducting member; 51. First contact rod; 60. Resetting member; 70. First positioning structure; 80. Second positioning structure; 90. Fixing member. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0031] In the prior art, the functional test of high-current small connectors is currently mainly done by manually snapping together the male and female terminals. The main reason is that the connector contact test window is small and positioning is difficult, making it impossible to achieve fully automated production. For large battery cells and small wiring harness connectors, only probes are used. The contact area is too small to test large currents. Common problems are: the probes turn black, burn, and have a short service life. The yield of single-direction probe testing is low, and the probe and contact insertion position are prone to offset. The traditional solution is to plug the connector into an adapter board, enlarge the contacts, and then test the large contacts of the adapter board. The adapter board has a short service life, and the male and female plugs are standard parts that are easily damaged, or cause product defects.

[0032] like Figure 1 , Figures 4 to 6 as well as Figure 8 As shown, according to one aspect of the present embodiment, a cell positioning device is provided for positioning a cell 1, and the cell positioning device comprises: a base 10, a bracket 20, a pressing mechanism 30, a first conductive member 40, and a second conductive member 50. The cell 1 is arranged on the base 10, the bracket 20 is arranged on the base 10, and the pressing mechanism 30 is arranged on the bracket 20 in a manner that it can be raised and lowered. The first conductive member 40 is arranged on the pressing mechanism 30 and faces the cell 1, and the pressing mechanism 30 has a descending position that drives the first conductive member 40 to contact the connector 2 of the cell 1 and an ascending position that drives the first conductive member 40 to separate from the connector 2. The second conductive member 50 is arranged on the base 10 and faces the cell 1, and when the pressing mechanism 30 is in the descending position, the second conductive member 50 contacts and cooperates with the connector 2, and when the pressing mechanism 30 is in the ascending position, the second conductive member 50 separates from the connector 2.

[0033] By applying the technical solution of the utility model, the battery cell 1 and the bracket 20 are both arranged on the base 10. The pressing mechanism 30 is arranged on the base 10 in a lifting manner. The pressing mechanism 30 is provided with a first conductive member 40, which is arranged toward the battery cell 1. The base 10 is provided with a second conductive member 50, which is arranged toward the battery cell 1. The pressing mechanism 30 has a descending position and an ascending position. When the pressing mechanism 30 is in the descending position, the pressing mechanism 30 drives the first conductive member 40 to contact the connector 2 of the battery cell 1, and the second conductive member 50 contacts and cooperates with the connector 2. When the pressing mechanism 30 is in the ascending position, the pressing mechanism 30 drives the first conductive member 40 to separate from the connector 2, and the second conductive member 50 is also separated from the connector 2. Through the above arrangement, the base 10 enables the battery cell 1 and the bracket 20 to be stable in position. The pressing mechanism 30 is arranged on the bracket 20, and the bracket 20 is arranged on the base 10, so that the pressing mechanism 30 can be stably lifted and lowered on the bracket 20. When the pressing mechanism 30 is in the descending position, the first conductive member 40 and the second conductive member 50 can contact and cooperate with the connector 2, and when the pressing mechanism 30 is in the ascending position, the first conductive member 40 and the second conductive member 50 can be separated from the connector 2. The first conductive member 40 and the second conductive member 50 are in contact with the connector 2 at the same time, which can increase the contact area with the connector 2 during the battery cell test and avoid the first conductive member 40 and the second conductive member 50 from being damaged due to the large current. Therefore, the technical solution of the present application effectively solves the problem in the related art that the conductive structure is damaged due to the small contact area between the conductive structure and the connector and the large conductive current during the battery cell test.

[0034] like Figure 1 and Figure 2 As shown, in this embodiment, the base 10 includes a first mounting seat 11 and a second mounting seat 12 connected to the first mounting seat 11, the bracket 20 is arranged on the first mounting seat 11, the second mounting seat 12 is located between the pressing mechanism 30 and the first mounting seat 11, the battery cell 1 is arranged on the second mounting seat 12, and the second conductive member 50 is arranged on the first mounting seat 11. The second mounting seat 12 makes the position of the battery cell 1 more stable and can support the battery cell 1. The first mounting seat 11 makes the position of the bracket 20 stable, so that the lifting process of the pressing mechanism 30 is more stable. The first mounting seat 11 makes the position of the second conductive member 50 more stable, so that when the pressing mechanism 30 is in the lowered position, the contact between the second conductive member 50 and the connector 2 is more stable.

[0035] like Figure 1 and Figure 4As shown, in this embodiment, the second mounting seat 12 can be floatingly arranged on the first mounting seat 11, and the second conductive member 50 is inserted into the second mounting seat 12. When the pressing mechanism 30 is in the descending position, the first conductive member 40 contacts and cooperates with the first side of the connector 2, and the second conductive member 50 contacts and cooperates with the second side of the connector 2. When the pressing mechanism 30 is in the ascending position, the first conductive member 40 is disconnected from the first side of the connector 2, and the second conductive member 50 is disconnected from the second side of the connector 2. The second mounting seat 12 can be floatingly arranged on the first mounting seat 11, that is, when the pressing mechanism 30 is in the pressing position, it can avoid the first conductive member 40 from hard contact with the first side of the connector 2, thereby avoiding the first conductive member 40 and the connector 2 from being damaged when the first conductive member 40 and the connector 2 are in contact. It can also avoid the second conductive member 50 from hard contact with the second side of the connector 2, thereby avoiding the second conductive member 50 and the connector 2 from being damaged when the second conductive member 50 and the connector 2 are in contact.

[0036] It should be noted that the reset member 60 can also prevent the second mounting seat 12 from excessively moving toward the first mounting seat 11 , thereby preventing the first conductive member 40 from excessively pressing the connector 2 .

[0037] like Figures 1 to 4 As shown, in this embodiment, a positioning groove 121 is provided on the second mounting seat 12, the connector 2 is arranged in the positioning groove 121, the second conductive member 50 includes a first contact rod 51, and a guide hole 1211 is provided at the bottom of the positioning groove 121 for guiding and matching with the first contact rod 51, and the guide hole 1211 connects the inside of the positioning groove 121 with the outside of the second mounting seat 12. The positioning groove 121 makes the relative position of the connector 2 and the second mounting seat 12 more stable, that is, the contact between the first conductive member 40, the second conductive member 50 and the connector 2 is more stable. The guide hole 1211 can connect the inside of the positioning groove 121 with the outside of the second mounting seat 12, and then the first contact rod 51 can extend from the outside of the second mounting seat 12 through the guide hole 1211 into the positioning groove 121 and contact the second side of the connector 2. When the second mounting seat 12 is not squeezed, the guide hole 1211 can protect the first contact rod 51.

[0038] Preferably, the second mounting seat 12 also includes a convex edge, which is arranged on the surface of the top of the positioning groove 121 connected to the second mounting seat 12. A mounting groove is also provided on the second mounting seat 12, and the mounting groove is arranged on the side of the positioning groove 121 away from the pressing mechanism 30. The mounting groove is connected to the positioning groove 121, and the battery cell 1 is arranged in the mounting groove. No convex edge is provided between the mounting groove and the positioning groove. An extrusion block is provided on the side of the fixing member 90 close to the second mounting seat 12. When the pressing mechanism 30 is in the lowered position, the extrusion block abuts and cooperates with the convex edge, thereby squeezing the second mounting seat 12 to move in the direction close to the first mounting seat 11.

[0039] Specifically, in the present embodiment, the battery cell positioning device further includes a limiter, which is arranged on the side of the positioning groove and adjacent to the mounting groove. The limiter includes an elastic member, a limiter block and a connecting rod, the elastic member is sleeved outside the connecting rod, the connecting rod is connected to the second mounting seat 12, and in the lifting direction of the pressing mechanism, a first guide surface is provided on the side of the limiter block away from the positioning groove 121. The limiter block is penetrated on the side of the connecting rod close to the positioning groove 121. A protrusion is provided on the side of the connector close to the limiter, and when the connector moves from outside the positioning groove 121 to inside the positioning groove 121, the protrusion squeezes the first guide surface, and the limiter block moves in the direction away from the positioning groove 121, so that the connector can smoothly enter the positioning groove 121.

[0040] Of course, in an embodiment not shown in the figure, in the lifting direction of the pressing mechanism 30, a second guide surface is provided on one side of the limit block close to the positioning groove 121, and when the connector 2 moves from the inside of the positioning groove 121 to the outside of the positioning groove 121, the second guide block squeezes the limit block to move in a direction away from the positioning groove 121, so that the connector smoothly leaves the positioning groove 121. The second guide surface may also not be provided, and when the connector 2 needs to be taken out, a robot arm is used to push the limit block to move in a direction away from the positioning groove 121.

[0041] like Figure 1 and Figure 7 As shown, in this embodiment, the pressing mechanism 30 includes a lifting member 31 disposed on the bracket 20 and a pressing member 32 disposed on the lifting member 31. The upper end of the pressing member 32 is connected to the lifting member 31. The first conductive member 40 is disposed at the lower end of the pressing member 32. When the pressing mechanism 30 is in the lowered position, the pressing member 32 presses the second mounting seat 12 to move toward the direction close to the first mounting seat 11, so that the second conductive member 50 is in contact with the second side of the connector 2. The lifting member 31 can be lifted and lowered on the bracket 20, thereby driving the pressing member 32 to be lifted and lowered. When the pressing member 32 is in the lowered position, it can press the second mounting seat 12 to move toward the direction close to the first mounting seat 11, so that the second conductive member 50 can be in contact with the connector 2. The lifting and lowering of the pressing member 32 can also drive the lifting and lowering of the first conductive member 40, that is, when the pressing mechanism 30 is in the lowered position, the first conductive member 40 can move to contact with the connector 2.

[0042] like Figure 4As shown, in this embodiment, the cell positioning device further includes a reset member 60 disposed between the second mounting seat 12 and the first mounting seat 11, and the reset member 60 applies an elastic force to the second mounting seat 12 to move the second mounting seat 12 away from the first mounting seat 11, and when the pressing mechanism 30 is in the ascending position, the first conductive member 40 is disconnected from the first side of the connector 2, and under the action of the reset member 60, the second conductive member 50 is disconnected from the second side of the connector 2. The reset member 60 enables the pressing mechanism 30 to apply an elastic force to the second mounting seat 12 to move the second mounting seat 12 away from the first mounting seat 11 when the pressing mechanism 30 is in the ascending position, and then when the second mounting seat 12 moves, it can drive the connector 2 to move, so that the connector 2 is separated from the second conductive member 50. When the pressing mechanism 30 is in the ascending position, the first conductive member 40 is disconnected from the first side of the connector 2, that is, the first conductive member 40 is separated from the connector 2.

[0043] Preferably, the reset member 60 is a spring. Of course, in embodiments not shown in the figures, the reset member 60 may also be made of other elastic materials, or the reset member 60 may also be configured as a cylinder or a hydraulic cylinder, and when the pressing mechanism 30 presses the second mounting seat 12, the reset member 60 controls the second mounting seat 12 to move toward the first mounting seat 11.

[0044] Specifically, the first side and the second side of the connector 2 are arranged opposite to each other.

[0045] like Figure 1 and Figure 7 As shown, in this embodiment, the lifting member 31 includes a cylinder body 311 and a lifting rod 312 disposed on the cylinder body 311, the pressing member 32 includes a pressing portion 321 located on one side of the cylinder body 311 and a connecting portion 322 connecting the pressing member 32 and the lifting rod 312, and the battery cell positioning device also includes a first positioning structure 70 disposed between the cylinder body 311 and the pressing member 32. The cylinder body drives the lifting rod 312 to move, the movement of the lifting rod 312 can drive the connecting portion 322 to move, the movement of the connecting portion 322 can drive the pressing portion 321 to move, and then the pressing member 32 can drive the first conductive member 40 to move. The first positioning structure 70 makes the movement of the pressing member relative to the cylinder body smoother.

[0046] Preferably, in this embodiment, the cylinder body 311 is a gas cylinder. Of course, in other embodiments, the cylinder body 311 may also be a hydraulic cylinder.

[0047] Of course, in an embodiment not shown in the figure, the lifting and lowering of the lifting member 31 can also be achieved by a motor driving a gear to rotate, and the gear driving a rack to move.

[0048] like Figure 4As shown, in this embodiment, the battery cell positioning device also includes a second positioning structure 80 disposed between the pressing member 32 and the second mounting seat 12. The second positioning structure 80 allows the pressing member 32 to move more smoothly relative to the second mounting seat 12, and also allows the relative position between the second mounting seat 12 and the pressing member 32 to remain fixed, thereby allowing the relative position between the second mounting seat 12 and the pressing mechanism 30 to remain fixed, that is, when the pressing mechanism 30 is raised or lowered, the relative position between the pressing mechanism 30 and the second mounting seat 12 will not shift, making the contact between the first conductive member 40 and the connector 2 more stable and easier. The pressing mechanism 30 is disposed on the bracket 20, and the bracket 20 is disposed on the first mounting seat 11. The second positioning structure 80 also allows the relative position of the first mounting seat 11 and the second mounting seat 12 to not shift, thereby allowing the second conductive member 50 to smoothly contact the connector 2 through the guide hole 1211.

[0049] like Figure 1 As shown, in this embodiment, the pressing mechanism 30 further includes an installation space 33, which is disposed at the second end of the pressing member 32, and a part of the structure of the first conductive member 40 is disposed in the installation space 33. The first conductive member 40 includes a second contact rod 41, and the second contact rod 41 extends out of the installation space 33 to contact and mate with the connector 2 of the battery cell 1. The installation space 33 makes the connection between the first conductive member 40 and the pressing mechanism 30 more stable, and facilitates the contact and mate between the first conductive member 40 and the connector 2.

[0050] like Figure 4 As shown, in this embodiment, the cell positioning device further includes a fixing member 90 for fixing the first conductive member 40 to the lower end of the pressing mechanism 30. The fixing member 90 makes the connection between the first conductive member 40 and the pressing mechanism 30 more stable, which facilitates the use of the cell positioning device.

[0051] Preferably, the fixing member 90 includes a first fixing block, the pressing portion 321 includes a connecting block and a second fixing block disposed on a side of the connecting block facing the second mounting seat 12, a portion of the first conductive member 40 is disposed between the first fixing block and the connecting block, a portion of the first conductive member 40 is disposed between the second fixing block and the connecting block, and the second fixing block is connected between a side of the first fixing block close to the battery cell 1 and a side of the connecting block close to the battery cell. An installation space 33 is formed between the second fixing block and the connecting block.

[0052] The connecting block includes a first block and a second block, and the connecting part includes a third block. The first block, the second block and the third block are connected in sequence, and the first block, the second block and the third block are arranged stepwise and gradually lowered, so that the distance between the third block and the second mounting seat 12 is smaller, which is convenient for the first conductive member 40 to contact the connector 2, and can also make the connecting block have a smaller weight, which is convenient for the use of the battery cell positioning device. The fixed block is connected to the third block, the first block is connected to the cylinder 311, and the first positioning structure is arranged between the cylinder 311 and the first block. The first conductive member 40 passes through the second fixed block, the first fixed block and the extrusion block and is connected to the connector 2.

[0053] Specifically, the battery cell positioning device further includes a pulling member, which is disposed between the top of the cylinder body 311 and the second block, and is a tension spring, so that the pressing mechanism 30 can be moved more easily from the lowered position to the raised position.

[0054] In the prior art, the battery cell testing device is mainly composed of a battery tester, a test probe, and a PCB board. The battery tester is connected to the PCB board, and the PCB board is connected to the probe module. The movable part drives the probe module to move up and down to press the battery test position to complete the various electrical performance tests of the battery. Its advantages are: the probe module component is a quick replacement structure, and guide positioning is added when replacing the probe and PCB module, so that the position of the probe module remains constant after replacement. However, this solution is suitable for large contacts and large-volume batteries (such as automotive battery scenarios), and is not suitable for testing the function of small connectors.

[0055] like Figures 1 to 8 As shown, according to another aspect of this embodiment, a battery cell testing device is provided, including: a battery tester and a battery cell positioning device, the battery cell positioning device is the above-mentioned battery cell positioning device, and the battery tester is connected to both the first conductive member 40 and the second conductive member 50. When the battery cell positioning device is in use, the first conductive member 40 and the second conductive member 50 can contact the connector 2 at the same time, thereby increasing the contact area, thereby making it possible to avoid the problem of the first conductive member 40 or the second conductive member 50 being easily damaged due to the small contact area when the first conductive member 40 or the second conductive member 50 contacts the connector 2 alone when testing the battery cell. The battery cell testing device with the above-mentioned battery cell positioning device also has the above-mentioned advantages. The battery tester can be connected to the connector 2 through the first conductive member 40 and the second conductive member 50, thereby being able to test the battery cell.

[0056] Preferably, the first conductive member 40 also includes an amplifier board, which is arranged in the installation space 33, the probe is connected to the amplifier board, the amplifier board is a PCB board, and a connecting line is arranged between the amplifier board and the battery tester to facilitate the connection between the first connecting member and the battery tester. When the battery cell positioning device is used, the pressing mechanism 30 squeezes the second mounting seat so that the second conductive member 50 can extend out of the guide hole 1211 and connect with the connector 2.

[0057] Specifically, the first conductive member 40 and the second conductive member 50 are arranged in parallel, and then arranged in series with the battery tester, so that the battery tester can test the battery cell.

[0058] Preferably, the first contact rod 51 is a microneedle, the microneedle is connected to the microneedle module, and the microneedle module is connected to the battery tester. The second contact rod 41 is a probe.

[0059] The battery cell testing device of this embodiment has the following advantages:

[0060] 1. Automated mechanical positioning, no need to use visual positioning, lower cost and higher efficiency.

[0061] 2. Use upper and lower sets of probes and micro-needle plug-in connectors, and then connect the battery for parallel shunting to meet the test requirements of large currents, suitable for type connector testing (suitable for laptop battery testing scenarios).

[0062] 3. After positioning is completed, the snap-fit ​​test is carried out, the positioning connector is more precise, the probe needle and microneedle needle contact with the connector contact more accurately, and it is not easy to cause interference bending and deformation, which greatly improves the service life of the probe and microneedle.

[0063] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0064] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0065] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0066] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery cell positioning device, used for positioning a battery cell (1), characterized in that: The battery cell positioning device comprises: A base (10), the battery cell (1) being arranged on the base (10); A bracket (20), wherein the bracket (20) is arranged on the base (10); A pressing mechanism (30) is arranged on the support (20) in a liftable manner; a first conductive member (40), the first conductive member (40) being arranged on the pressing mechanism (30) and facing the battery cell (1), the pressing mechanism (30) having a descending position for driving the first conductive member (40) to contact the connector (2) of the battery cell (1) and an ascending position for driving the first conductive member (40) to separate from the connector (2); A second conductive member (50), the second conductive member (50) being arranged on the base (10) and facing the battery cell (1); when the pressing mechanism (30) is in the descending position, the second conductive member (50) is in contact with the connector (2); when the pressing mechanism (30) is in the ascending position, the second conductive member (50) is separated from the connector (2).

2. The battery cell positioning device according to claim 1, characterized in that: The base (10) comprises a first mounting seat (11) and a second mounting seat (12) connected to the first mounting seat (11); the bracket (20) is arranged on the first mounting seat (11); the second mounting seat (12) is located between the pressing mechanism (30) and the first mounting seat (11); the battery cell (1) is arranged on the second mounting seat (12); and the second conductive member (50) is arranged on the first mounting seat (11).

3. The battery cell positioning device according to claim 2, characterized in that: The second mounting seat (12) can be floatingly arranged on the first mounting seat (11), and the second conductive member (50) is inserted into the second mounting seat (12); when the pressing mechanism (30) is in the descending position, the first conductive member (40) contacts and cooperates with the first side of the connector (2), and the second conductive member (50) contacts and cooperates with the second side of the connector (2); when the pressing mechanism (30) is in the ascending position, the first conductive member (40) is disconnected from the first side of the connector (2), and the second conductive member (50) is disconnected from the second side of the connector (2).

4. The battery cell positioning device according to claim 2, characterized in that: The second mounting seat (12) is provided with a positioning groove (121), the connector (2) is arranged in the positioning groove (121), the second conductive member (50) comprises a first contact rod (51), the bottom of the positioning groove (121) is provided with a guide hole (1211) which is matched with the first contact rod (51) for guiding, and the guide hole (1211) connects the interior of the positioning groove (121) with the exterior of the second mounting seat (12).

5. The battery cell positioning device according to claim 2, characterized in that: The pressing mechanism (30) comprises a lifting member (31) arranged on the bracket (20) and a pressing member (32) arranged on the lifting member (31); the upper end of the pressing member (32) is connected to the lifting member (31); the first conductive member (40) is arranged at the lower end of the pressing member (32); when the pressing mechanism (30) is in the descending position, the pressing member (32) presses the second mounting seat (12) to move in a direction close to the first mounting seat (11), so that the second conductive member (50) contacts and cooperates with the second side of the connector (2).

6. The battery cell positioning device according to claim 2, characterized in that: The cell positioning device further comprises a reset member (60) arranged between the second mounting seat (12) and the first mounting seat (11), wherein the reset member (60) applies an elastic force to the second mounting seat (12) so as to move the second mounting seat (12) away from the first mounting seat (11); when the pressing mechanism (30) is in the ascending position, the first conductive member (40) is disconnected from the first side of the connector (2), and under the action of the reset member (60), the second conductive member (50) is disconnected from the second side of the connector (2).

7. The battery cell positioning device according to claim 5, characterized in that: The lifting member (31) comprises a cylinder body (311) and a lifting rod (312) arranged on the cylinder body (311); the pressing member (32) comprises a pressing portion (321) located on one side of the cylinder body (311) and a connecting portion (322) connecting the pressing member (32) and the lifting rod (312); and the battery cell positioning device further comprises a first positioning structure (70) arranged between the cylinder body (311) and the pressing member (32).

8. The battery cell positioning device according to claim 5, characterized in that: The battery cell positioning device also includes a second positioning structure (80) arranged between the pressing piece (32) and the second mounting seat (12).

9. The battery cell positioning device according to claim 5, characterized in that: The pressing mechanism (30) further comprises an installation space (33), wherein the installation space (33) is arranged at the second end of the pressing member (32), a part of the structure of the first conductive member (40) is arranged in the installation space (33), and the first conductive member (40) comprises a second contact rod (41), and the second contact rod (41) extends out of the installation space (33) to contact and mate with the connector (2).

10. The battery cell positioning device according to any one of claims 1 to 9, characterized in that: The battery cell positioning device also includes a fixing member (90) for fixing the first conductive member (40) to the lower end of the pressing mechanism (30).

11. A battery cell testing device, characterized in that: include: A battery tester and a battery cell positioning device, wherein the battery cell positioning device is the battery cell positioning device according to any one of claims 1 to 10, and the battery tester is connected to both the first conductive member (40) and the second conductive member (50).

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