Lithium battery OCV detection mechanism

Abstract

The utility model relates to a lithium battery OCV detection mechanism in the technical field of OCV detection mechanisms, which comprises a translation assembly, a test assembly and a fixing assembly, and is characterized in that the translation assembly comprises a driving part and a translation module, and the driving part is arranged on the side surface of the translation module; the fixing assembly is arranged on the top surface of the translation module and can perform transverse reciprocating motion on the top surface of the translation module along with the driving of the driving piece; the testing assembly is arranged on the front surface of the fixing assembly, the testing assembly is perpendicular to the translation module, the testing assembly comprises a testing air cylinder and a plurality of testing probes, the testing probes are arranged at the driving end of the testing air cylinder, and the testing probes can move up and down along with driving of the testing air cylinder. According to the utility model, the transverse movement can be realized through the driving of the driving piece, the longitudinal movement can be realized through the testing cylinder, the position of the tab can be positioned more quickly through the mutual cooperation of the driving piece and the testing cylinder aiming at batteries of different models, the testing probe does not need to be replaced frequently, more battery models can be compatible, and the compatibility and the efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of OCV detection mechanisms, in particular to an OCV detection mechanism for a lithium battery. Background Art

[0002] In the production process of soft-package batteries, one of the stations needs to test the voltage resistance of the battery cell, commonly known as OCV testing. OCV stands for open circuit voltage. OCV testing mainly measures battery characteristics by pressing the probes connected to the tester on the positive and negative ears of the battery. OCV testing is a relatively important part of battery testing.

[0003] A Chinese patent with publication number CN219496602U discloses an OCV detection mechanism for a battery cell, wherein a detection probe is installed on a clamping mechanism. In the current prior art, in order to improve the detection efficiency, the OCV test probe adopts a fixed-position structure to facilitate contact with the pole ear. However, since the test probe is a fixed-position structure, it can only test batteries of the same type. If different types of batteries need to be tested, the position of the test probe needs to be changed. Therefore, its compatibility is insufficient and its efficiency is low.

[0004] Therefore, there is an urgent need for lithium battery OCV testing agencies to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a lithium battery OCV detection mechanism, which can test batteries of different models and sizes without changing the position of the test probe, thereby improving its compatibility with batteries and improving efficiency.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] Lithium battery OCV testing institutions, including:

[0008] The translation assembly comprises a driving member and a translation module, wherein the driving member is arranged on a side of the translation module;

[0009] The fixed component is arranged on the top surface of the translation module and can perform transverse reciprocating motion on the top surface of the translation module as driven by the driving member;

[0010] The test component is arranged on the front surface of the fixed component and is perpendicular to the translation module. The test component includes a test cylinder and a plurality of test probes. The test probes are arranged on the driving end of the test cylinder and can move up and down with the driving of the test cylinder.

[0011] Furthermore, the test assembly also includes a test fixing plate, and a plurality of fixing holes for installing a test probe are horizontally opened on the front surface of the test fixing plate. The test probe includes a probe and a fixing block. The probe is movably arranged on the top surface of the fixing block up and down. Screws are installed on the front surface of the fixing block, and the fixing block is installed on the front surface of the test fixing plate by cooperating with the screws and the fixing holes.

[0012] Furthermore, a clamping ring is installed at the bottom end of the probe to prevent the probe from falling out, and a spring is arranged between the probe and the fixed block. The two ends of the spring always press the probe and the fixed block respectively, and the spring is used to buffer and support the probe.

[0013] Furthermore, the translation module includes a mounting seat, which is a rectangular cavity, in which a screw rod is rotatably mounted, a slide is sleeved on the screw rod, and the top surface of the slide is fixedly mounted with a slide. The top surfaces of both ends of the slide are higher than the top surface of the mounting seat, and the front and rear surfaces of the slide are extended with limit baffles, which are used to convert the rotation of the screw rod on the slide into lateral movement.

[0014] Furthermore, the translation module also includes a connecting seat, which is arranged on the left side of the mounting seat. The connecting seat is a rectangular cavity, one end of the screw rod extends into the connecting seat, and a connecting plate is installed on the left side of the connecting seat. The driving member is installed on the connecting plate, and the driving end of the driving member extends into the connecting seat. The end of the screw rod extending into the connecting seat is sleeved with a coupling, and the screw rod is connected to the driving end of the driving member through the coupling.

[0015] Furthermore, the driving component is a servo motor.

[0016] Furthermore, a slide groove is provided on the front surface of the mounting seat, and a plurality of sensor mounting plates are movably provided in the slide groove. A travel sensor for detecting the travel is provided on the sensor mounting plate, and a travel sensing sheet for cooperating with the travel sensor is provided on the front surface of the slide seat.

[0017] Furthermore, the fixing assembly includes an adjusting mounting plate, a reinforcing block and a cylinder adjusting plate. The adjusting mounting plate is arranged on the top surface of the slide seat, and the adjusting mounting plate can move with the movement of the slide seat. The cylinder adjusting plate is arranged on the front surface of the adjusting mounting plate, and the cylinder adjusting plate and the adjusting mounting plate are perpendicular to each other. The reinforcing block is arranged on the rear surface of the cylinder adjusting plate, and the bottom surface of the reinforcing block is connected to the top surface of the adjusting mounting plate.

[0018] Furthermore, the cylinder adjustment plate includes a first adjustment plate and a second adjustment plate, the first adjustment plate is movably arranged on the front surface of the second adjustment plate, a second adjustment block is arranged on the left side of the first adjustment plate, and a first adjustment block and a third adjustment block are arranged on the left side of the second adjustment plate in sequence from bottom to top, the first adjustment block and the third adjustment block are respectively located below and above the second adjustment block, and the first adjustment plate can be moved up and down on the front surface of the second adjustment plate by manually adjusting the second adjustment block.

[0019] Furthermore, the test cylinder is a three-axis cylinder.

[0020] The beneficial effects of the utility model are as follows:

[0021] The utility model provides a lithium battery OCV detection mechanism, which includes a translation component, a fixed component and a test component. The translation module is driven by a driving member, which in turn drives the fixed component to move laterally, thereby causing the test component installed on the fixed component to move laterally. When the test component moves to a desired position, the test probe is driven by a test cylinder to move up and down so that the test probe contacts the pole ear, and finally the OCV detection is completed. Under the above structure, the driving member can realize lateral movement, and the test cylinder can realize longitudinal movement. For batteries of different models, the mutual cooperation of the two can more quickly locate the position of the pole ear, without the need to frequently replace the test probe, and can be compatible with more battery models, thereby improving compatibility and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the front view of the OCV detection mechanism of the lithium battery of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the lithium battery OCV detection mechanism of the utility model;

[0024] Figure 3 This is a schematic structural diagram of the OCV detection mechanism of a lithium battery of the utility model from another angle;

[0025] Figure 4 This is a schematic diagram of the translation component structure of the lithium battery OCV detection mechanism of the utility model;

[0026] Figure 5 This is a schematic structural diagram of another angle of the translation component of the lithium battery OCV detection mechanism of the utility model;

[0027] Figure 6 This is a front view of the fixed components of the lithium battery OCV detection mechanism of the utility model;

[0028] Figure 7 This is a schematic diagram of the fixed component structure of the lithium battery OCV detection mechanism of the utility model;

[0029] Figure 8 This is a front view of the test assembly of the lithium battery OCV detection mechanism of the utility model;

[0030] Fig. 9 This is a schematic diagram of the structure of the lithium battery OCV detection mechanism of the utility model;

[0031] In the figure: 1-translation assembly, 101-servo motor, 102-translation module, 1021-connecting plate, 1022-connecting seat, 1023-coupling, 1024-mounting seat, 1025-screw, 1026-slide, 1027-slide, 1028-limit baffle, 1029-stroke probe, 2-fixed assembly, 201-cylinder adjustment plate, 202-first adjustment block, 203-second adjustment block, 204-third adjustment block, 205-reinforcement block, 206-adjustment mounting plate, 3-test assembly, 301-test cylinder, 302-test fixing plate, 303-test probe, 4-sensor mounting plate, 5-stroke sensor, 6-stroke sensor sheet, 7-slide. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0033] See also Figure 1-Figure 9 The lithium battery OCV detection mechanism specifically implemented includes: a translation component 1, including a driving member and a translation module 102, the driving member is arranged on the side of the translation module 102, and the driving member is a servo motor 101; a fixed component 2, which is arranged on the top surface of the translation module 102, and can perform lateral reciprocating motion on the top surface of the translation module 102 driven by the driving member; a test component 3, which is arranged on the front surface of the fixed component 2, and the test component 3 is perpendicular to the translation module 102, the test component 3 includes a test cylinder 301 and a plurality of test probes 303, the test probe 303 is arranged on the driving end of the test cylinder 301, the test probe 303 can move up and down with the drive of the test cylinder 301, and the test cylinder 301 is a three-axis cylinder.

[0034] The driving member is connected to the translation module 102, and then drives the fixed component 2 set on the translation module 102 to move left and right, so that the test component 3 set on the fixed component 2 is aligned with the pole ear. When it moves to the corresponding position, the test cylinder 301 can drive the test probe 303 to detect the pole ear. Under the above structure, lateral movement can be achieved through the drive of the driving member, and the test cylinder 301 can achieve longitudinal movement. For batteries of different models, through the mutual cooperation of the two, the position of the pole ear can be located more quickly, without the need to frequently replace the test probe 303, it can be compatible with more battery models, and the compatibility and efficiency are improved.

[0035] The test assembly 3 also includes a test fixing plate 302, and a plurality of fixing holes for installing a test probe 303 are horizontally opened on the front surface of the test fixing plate 302. The test probe 303 includes a probe and a fixing block. The probe is movably arranged on the top surface of the fixing block up and down. Screws are installed on the front surface of the fixing block, and the fixing block is installed on the front surface of the test fixing plate 302 by the cooperation of the screws and the fixing holes.

[0036] See also Figure 2 A clamping ring is installed at the bottom of the probe to prevent the probe from falling out. Through the clamping ring, the probe can move on the fixed block without falling. A spring is arranged between the probe and the fixed block. The two ends of the spring always press the probe and the fixed block respectively. The spring can play the role of buffering and supporting the probe to prevent the probe from damaging the pole ear.

[0037] See also Figure 4-Figure 5 The translation module 102 includes a mounting seat 1024, which is a rectangular cavity. A screw rod 1025 is rotatably mounted in the mounting seat 1024. Bearings are mounted at both ends of the screw rod 1025. The bearings are embedded in both ends of the mounting seat 1024. The use of bearings can greatly reduce the friction of the screw rod 1025, thereby increasing the service life of the mechanism. A slide 1027 is sleeved on the screw rod 1025. A slide 1026 is fixedly mounted on the top surface of the slide 1027. The top surfaces of both ends of the slide 1026 are higher than the top surface of the mounting seat 1024. The front and rear surfaces of the slide 1027 are extended with limited baffles. 1028, the limit baffle 1028 is used to convert the rotation of the screw rod 1025 on the slide 1027 into lateral movement. Through the limitation of the limit baffle 1028, the rotation of the screw rod 1025 will not drive the rotation of the slide 1027, so that the slide 1027 can be translated in the mounting seat 1024. Baffles are installed at both ends of the slide 1027. The baffles can prevent dust and increase lubrication to increase the service life. A travel probe 1029 for mechanical detection is also provided on the right baffle. When the travel probe 1029 contacts the inner wall of the mounting seat 1024, it means that the travel limit has been reached.

[0038] The translation module 102 also includes a connecting seat 1022, which is arranged on the left side of the mounting seat 1024. The connecting seat 1022 is a rectangular cavity. One end of the screw rod 1025 extends into the connecting seat 1022. A connecting plate 1021 is installed on the left side of the connecting seat 1022. The driving member is installed on the connecting plate 1021, and the driving end of the driving member extends into the connecting seat 1022. One end of the screw rod 1025 extending into the connecting seat 1022 is sleeved with a coupling 1023, and the screw rod 1025 is connected to the driving end of the driving member through the coupling 1023.

[0039] A slide groove 7 is provided on the front surface of the mounting seat 1024, and a plurality of sensor mounting plates 4 are movably provided in the slide groove 7. A travel sensor 5 for detecting the travel is provided on the sensor mounting plate 4. A travel sensing sheet 6 for cooperating with the travel sensor 5 is provided on the front surface of the slide seat 1026. By adjusting the distance between two adjacent travel sensors 5, the moving distance of the slide seat 1026 can be changed.

[0040] See also Figure 6-Figure 7 The fixed component 2 includes an adjusting mounting plate 206, a reinforcing block 205 and a cylinder adjusting plate 201. The adjusting mounting plate 206 is arranged on the top surface of the slide 1026, and the adjusting mounting plate 206 can move with the movement of the slide 1026. The cylinder adjusting plate 201 is arranged on the front surface of the adjusting mounting plate 206, and the cylinder adjusting plate 201 and the adjusting mounting plate 206 are perpendicular to each other. The reinforcing block 205 is arranged on the rear surface of the cylinder adjusting plate 201, and the bottom surface of the reinforcing block 205 is connected to the top surface of the adjusting mounting plate 206. The reinforcing block 205 can make the fixed component 2 more stable as a whole and improve the stability of the mechanism.

[0041] The test cylinder 301 extends and retracts the driving end under the drive of compressed air, and the test fixing plate 302 arranged on the top surface of the driving end can move up and down with the extension and retraction of the test cylinder 301, thereby driving the test probe 303 arranged on the test fixing plate 302. According to different types of batteries, the test probe 303 is moved to the required position through the servo motor 101 to achieve detection, which has better compatibility and does not require disassembly and adjustment of the test probe 303, thereby greatly improving efficiency.

[0042] The cylinder adjustment plate 201 is formed by splicing a first adjustment plate and a second adjustment plate and fixing them with screws. A protrusion extends in the middle of the rear surface of the first adjustment plate, and a groove corresponding to the protrusion begins in the middle of the front surface of the second adjustment plate. The first adjustment plate is movably arranged on the front surface of the second adjustment plate, and a second adjustment block 203 is arranged on the left side of the first adjustment plate. The left side of the second adjustment plate is sequentially provided with a first adjustment block 202 and a third adjustment block 204 from bottom to top. The first adjustment block 202 and the third adjustment block 204 are respectively located below and above the second adjustment block 203. After loosening the screws, the first adjustment plate can be moved up and down on the front surface of the second adjustment plate by manually adjusting the second adjustment block 203. By adjusting the height difference between the first adjustment plate and the second adjustment plate, the height of the test cylinder 301 can be manually adjusted to meet the needs of batteries of different models and improve compatibility.

[0043] The utility model provides a lithium battery OCV detection mechanism, which includes a translation component 1, a fixed component 2 and a test component 3. The translation module 102 is driven by a driving member, thereby driving the fixed component 2 to move laterally, so that the test component 3 installed on the fixed component 2 moves laterally. When the test component 3 moves to the required position, the test probe 303 is driven by the test cylinder 301 to move up and down, so that the test probe 303 contacts the pole ear, and finally completes the OCV detection. Under the above structure, the driving member can realize lateral movement, and the test cylinder 301 can realize longitudinal movement. For batteries of different models, the mutual cooperation of the two can more quickly locate the position of the pole ear, without the need to frequently replace the test probe 303, and can be compatible with more battery models, thereby improving compatibility and efficiency.

[0044] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. Lithium battery OCV detection mechanism, characterized in that: include: The translation assembly comprises a driving member and a translation module, wherein the driving member is arranged on the side of the translation module and is drivingly connected to the translation module; The fixed component is arranged on the top surface of the translation module and can perform transverse reciprocating motion on the top surface of the translation module as driven by the driving member; The test component is arranged on the front surface of the fixed component and is perpendicular to the translation module. The test component includes a test cylinder and a plurality of test probes. The test probes are arranged on the driving end of the test cylinder and can move up and down with the driving of the test cylinder.

2. The lithium battery OCV detection mechanism according to claim 1, characterized in that: The test assembly also includes a test fixing plate, and a plurality of fixing holes for installing a test probe are horizontally opened on the front surface of the test fixing plate. The test probe includes a probe and a fixing block. The probe is movably arranged on the top surface of the fixing block up and down. Screws are installed on the front surface of the test fixing plate, and the fixing block is installed on the front surface of the test fixing plate by the cooperation of the screws and the fixing holes.

3. The lithium battery OCV detection mechanism according to claim 2, characterized in that: A clamping ring is installed at the bottom end of the probe to prevent the probe from falling out. A spring is arranged between the probe and the fixing block. The two ends of the spring always press the probe and the fixing block respectively. The spring is used for buffering and supporting the probe.

4. The lithium battery OCV detection mechanism according to claim 1, characterized in that: The translation module includes a mounting seat, which is a rectangular cavity. A screw is rotatably mounted in the mounting seat, a slide is sleeved on the screw, and a slide is fixedly mounted on the top surface of the slide. The top surfaces of both ends of the slide are higher than the top surface of the mounting seat. Limit baffles are extended from the front and rear surfaces of the slide, and the limit baffles are used to convert the rotation of the screw on the slide into lateral movement.

5. The lithium battery OCV detection mechanism according to claim 4, characterized in that: The translation module also includes a connecting seat, which is arranged on the left side of the mounting seat. The connecting seat is a rectangular cavity. One end of the screw rod extends into the connecting seat. A connecting plate is installed on the left side of the connecting seat. The driving member is installed on the connecting plate, and the driving end of the driving member extends into the connecting seat. The end of the screw rod extending into the connecting seat is sleeved with a coupling, and the screw rod is connected to the driving end of the driving member through the coupling.

6. The lithium battery OCV detection mechanism according to claim 1, characterized in that: The driving component is a servo motor.

7. The lithium battery OCV detection mechanism according to claim 4, characterized in that: The front surface of the mounting seat is provided with a slide groove, in which a plurality of sensor mounting plates are movably provided, and a travel sensor for detecting the travel is provided on the sensor mounting plate, and the front surface of the slide seat is provided with a travel sensing sheet for cooperating with the travel sensor.

8. The lithium battery OCV detection mechanism according to claim 4, characterized in that: The fixing assembly includes an adjusting mounting plate, a reinforcing block and a cylinder adjusting plate. The adjusting mounting plate is arranged on the top surface of the slide seat and can move with the movement of the slide seat. The cylinder adjusting plate is arranged on the front surface of the adjusting mounting plate, and the cylinder adjusting plate and the adjusting mounting plate are perpendicular to each other. The reinforcing block is arranged on the rear surface of the cylinder adjusting plate, and the bottom surface of the reinforcing block is connected to the top surface of the adjusting mounting plate.

9. The lithium battery OCV detection mechanism according to claim 8, characterized in that: The cylinder adjustment plate includes a first adjustment plate and a second adjustment plate. The first adjustment plate is movably arranged on the front surface of the second adjustment plate up and down. A second adjustment block is arranged on the left side of the first adjustment plate. The left side of the second adjustment plate is sequentially arranged with a first adjustment block and a third adjustment block from bottom to top. The first adjustment block and the third adjustment block are respectively located below and above the second adjustment block. The first adjustment plate can be moved up and down on the front surface of the second adjustment plate by manually adjusting the second adjustment block.

10. The lithium battery OCV detection mechanism according to claim 1, characterized in that: The test cylinder is a three-axis cylinder.

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