Battery cell OCV testing device

Abstract

The utility model provides a battery cell OCV testing device, and the device comprises a testing platform which is provided with a battery cell placing part; the detection assembly comprises a frame body and a detection piece, the frame body is arranged on one side of the test platform, the detection piece is movably arranged on the frame body, and the detection piece is provided with a test part which is in contact with the tab of the battery cell; and the cleaning assembly comprises a first driving piece and a cleaning piece, the first driving piece is arranged on the frame body, and the first driving piece is in driving connection with the cleaning piece so as to drive the cleaning piece to move relative to the battery cell placing part. According to the technical scheme provided by the invention, the problem that the battery cell mounted on equipment cannot be fixed due to the fact that a thin film is not firm when the thin film is pasted on the surface of the battery cell after the battery cell test because metal particles exist on the battery cell after the battery cell is subjected to the pressurization test in the related technology can be solved.

Description

Technical Field

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

[0002] With the continuous development of lithium batteries, the quality requirements for batteries are getting higher and higher. In the process of battery cell manufacturing, it is necessary to use OCV (Open Circuit Voltage) testing equipment to measure the voltage parameters of the battery cells. This can ensure that the battery cells meet production requirements and pick out battery cells with safety hazards.

[0003] In the related art, the OCV testing equipment uses a turntable to transport multiple battery cells and perform voltage detection operations. When one of the battery cells moves to the OCV testing equipment, the metal conductor of the OCV testing equipment contacts the positive and negative pole ears of the battery cell, completing the voltage testing process of the battery cell.

[0004] However, in the related art, after the battery cell is pressure tested, metal particles will exist on the battery cell, and then when a film is pasted on the surface of the battery cell after the battery cell test, the film will be unstable, and the battery cell installed on the device cannot be fixed. Utility Model Content

[0005] The utility model provides a battery cell OCV testing device to solve the problem in the related art that after the battery cell is pressure tested, metal particles may exist on the battery cell, and further when a film is pasted on the surface of the battery cell after the battery cell test, the film may be unstable, and further the battery cell installed on the equipment may be unable to be fixed.

[0006] The utility model provides a battery cell OCV testing device, which comprises: a testing platform, which has a battery cell placement portion; a detection component, which comprises a frame and a detection member, wherein the frame is arranged at one side of the testing platform, and the detection member is movably arranged on the frame, and the detection member has a testing portion that contacts with a pole ear of the battery cell; a cleaning component, which comprises a first driving member and a cleaning member, wherein the first driving member is arranged on the frame, and is drivingly connected to the cleaning member to drive the cleaning member to move relative to the battery cell placement portion.

[0007] Furthermore, the battery cell OCV testing device further comprises a dust suction piece, and a dust suction port of the dust suction piece is arranged toward the battery cell placement portion.

[0008] Furthermore, the cleaning component and the dust collecting component are respectively located on two opposite sides of the battery cell placement portion.

[0009] Furthermore, the dust collector includes a dust collector head, a connecting pipe and a vacuum pump. The dust collector port of the dust collector head is extended along the length direction of the battery cell placement portion. The first end of the connecting pipe is connected to the dust collector head, and the second end of the connecting pipe is connected to the vacuum pump.

[0010] Furthermore, the cleaning assembly also includes a second driving member and a mounting plate. The second driving member is arranged on the frame, and the second driving member is drivingly connected to the mounting plate to drive the mounting plate to be movably arranged vertically. The first driving member is arranged on the mounting plate.

[0011] Further, the first driving member includes a telescopic cylinder; and / or the second driving member includes a screw motor.

[0012] Furthermore, the cleaning member includes a cleaning brush for cleaning.

[0013] Furthermore, the detection component includes a first test head, a second test head, a third drive component and a fourth drive component. The third drive component and the fourth drive component are both fixedly arranged on the frame. The first test head and the second test head are respectively located on both sides of the battery cell placement portion. The third drive component is driven and connected to the first test head, and the fourth drive component is driven and connected to the second test head, so that the first test head and the second test head move and clamp the pole ears of the battery cell.

[0014] Furthermore, the battery cell OCV testing device also includes a base and a fifth driving member, the fifth driving member is arranged on the base, and the fifth driving member is drivingly connected to the lower end of the frame so that the frame can move closer to or away from the test platform.

[0015] Furthermore, the test platform includes a turntable, on which a plurality of battery cell placement portions are arranged, and the plurality of battery cell placement portions are arranged at intervals along the circumference of the turntable.

[0016] By applying the technical solution of the utility model, the battery cell OCV test device includes a test platform, a detection component and a cleaning component. The test platform is provided with a battery cell placement part. By setting the frame of the detection component on one side of the test platform, the detection component is movably set on the frame, so that when it is necessary to perform voltage detection on the battery cell on the battery cell placement part, the detection component is controlled to move so that the detection part of the detection component contacts the pole ear of the battery cell, thereby ensuring that the battery cell can be detected. Among them, in order to facilitate the cleaning of metal particles on the surface of the battery cell after voltage detection, a first driving member is set on the frame, and the first driving member is connected to the cleaning member, so that the cleaning member can be driven to move relative to the battery cell placement part, so that the cleaning member can clean the metal particles on the surface of the battery cell placed on the battery cell placement part. In this way, after the battery cell is tested for voltage by the detection member, the cleaning member cleans the surface of the battery cell, which is convenient for pasting the film on the surface of the battery cell, ensuring that the battery cell after detection is pasted and fixed. 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 The structure diagram of the battery cell OCV test device provided by the embodiment of the utility model is shown;

[0019] Figure 2 Shows Figure 1 A partial enlarged view of the middle A;

[0020] Figure 3 A schematic structural diagram of a battery cell OCV test device from another perspective is shown;

[0021] Figure 4 Shows Figure 3 A partial enlarged view of point B in the middle.

[0022] The above drawings include the following reference numerals:

[0023] 10. Test platform; 11. Battery cell placement part; 12. Turntable;

[0024] 20. Detection assembly; 21. Frame; 22. Detection member; 221. First test head; 222. Second test head; 223. Third driving member; 224. Fourth driving member;

[0025] 30. Cleaning assembly; 31. First driving member; 32. Cleaning member; 33. Second driving member; 34. Mounting plate;

[0026] 40. dust collecting part; 41. dust collecting head; 42. connecting pipe;

[0027] 51. base; 52. fifth driving 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] like Figures 1 to 4As shown, an embodiment of the utility model provides a battery cell OCV testing device, which includes a testing platform 10, a detection component 20 and a cleaning component 30. The testing platform 10 has a battery cell placement portion 11. The detection component 20 includes a frame 21 and a detection member 22. The frame 21 is arranged on one side of the testing platform 10. The detection member 22 is vertically movably arranged on the frame 21. The detection member 22 has a testing portion that contacts the pole ear of the battery cell. The cleaning component 30 includes a first driving member 31 and a cleaning member 32. The first driving member 31 is arranged on the frame 21. The first driving member 31 is drivingly connected to the cleaning member 32 to drive the cleaning member 32 to move relative to the battery cell placement portion 11.

[0030] The battery cell OCV testing device provided in this embodiment includes a testing platform 10, a detection component 20 and a cleaning component 30. The testing platform 10 is provided with a battery cell placement portion 11. By disposing a frame 21 of the detection component 20 on one side of the testing platform 10, a detection member 22 is movably disposed on the frame 21. When it is necessary to perform voltage detection on the battery cell on the battery cell placement portion 11, the detection member 22 is controlled to move so that the testing portion of the detection member 22 contacts the pole ear of the battery cell, thereby ensuring that the battery cell can be detected. Among them, in order to facilitate the cleaning of metal particles on the surface of the battery cell after voltage detection, a first driving member 31 is arranged on the frame 21, and the first driving member 31 is driven and connected to the cleaning member 32, so that the cleaning member 32 can be driven to move relative to the battery cell placement portion 11, so that the cleaning member 32 can clean the metal particles on the surface of the battery cell placed on the battery cell placement portion 11. In this way, after the battery cell is voltage tested by the detection member 22, the cleaning member 32 cleans the surface of the battery cell, which facilitates the sticking of the film on the surface of the battery cell, thereby ensuring that the battery cell after detection is pasted and fixed.

[0031] It should be noted that the first driving member 31 is disposed on the frame 21 , including that the first driving member 31 is directly disposed on the frame 21 , or that the first driving member 31 is indirectly disposed on the frame 21 .

[0032] Among them, the detection member 22 is movably arranged on the frame 21, specifically including the detection member 22 being able to be movably arranged on the frame 21 along the vertical direction, so that when it is necessary to perform voltage detection on the battery cell on the battery cell placement portion 11, the detection member 22 is controlled to be lifted and lowered so that the test portion of the detection member 22 contacts the pole ear of the battery cell, thereby ensuring that the battery cell can be detected; or, the detection member 22 is able to be movably arranged on the frame 21 along the horizontal direction, so that when it is necessary to perform voltage detection on the battery cell on the battery cell placement portion 11, the detection member 22 is controlled to move horizontally so that the test portion of the detection member 22 contacts the pole ear of the battery cell, thereby ensuring that the battery cell can be detected.

[0033] like Figures 1 to 4 As shown, the battery cell OCV test device further includes a dust suction member 40, and the dust suction port of the dust suction member 40 is arranged toward the battery cell placement portion 11. With the above structure, by arranging the dust suction member 40, the dust suction port of the dust suction member 40 is arranged toward the battery cell placement portion 11, so that it can be ensured that while the battery cells on the battery cell placement portion 11 are cleaned by the cleaning member 32, the battery cells on the battery cell placement portion 11 are simultaneously negatively adsorbed by the dust suction member 40, so that while cleaning is being performed, the cleaned metal particles can also be adsorbed by the dust suction member 40, so that the cleaning effect can be improved.

[0034] like Figures 1 to 4 As shown, the cleaning assembly 30 and the dust collecting member 40 are respectively located on opposite sides of the battery cell placement portion 11. With the above structure, the cleaning assembly 30 and the dust collecting member 40 are respectively located on opposite sides of the battery cell placement portion 11, so that the battery cell can be cleaned by using the cleaning assembly 30 on one side of the battery cell placement portion 11, and the dust collecting member 40 on the other side of the battery cell placement portion 11 is used to perform negative pressure adsorption on the battery cell.

[0035] like Figure 2 and Figure 4 As shown, the dust collecting part 40 includes a dust collecting head 41, a connecting pipe 42 and a vacuum pump. The dust collecting port of the dust collecting head 41 is extended along the length direction of the battery cell placement part 11. The first end of the connecting pipe 42 is connected to the dust collecting head 41, and the second end of the connecting pipe 42 is connected to the vacuum pump. With the above structure, the first end of the connecting pipe 42 is connected to the dust collecting head 41, and the second end of the connecting pipe 42 is connected to the vacuum pump. When the vacuum pump is working, the vacuum pump is connected to the dust collecting head 41 through the connecting pipe 42, so that the dust collecting head 41 can be used to realize the negative pressure adsorption effect and improve the cleaning effect.

[0036] like Figure 3 and Figure 4 As shown, the cleaning assembly 30 also includes a second driving member 33 and a mounting plate 34, the second driving member 33 is arranged on the frame 21, the second driving member 33 is drivingly connected to the mounting plate 34, so as to drive the mounting plate 34 to be movably arranged in the vertical direction, and the first driving member 31 is arranged on the mounting plate 34. With the above structure, by arranging the second driving member 33 on the frame 21, the second driving member 33 can drive the mounting plate 34 to move in the vertical direction, and the first driving member 31 is arranged on the mounting plate 34, so that it is convenient to drive the first driving member 31 and the cleaning member 32 to move in the vertical direction under the action of the second driving member 33, so as to facilitate the adjustment of the height of the cleaning member 32 relative to the battery cell placement part 11, so that when cleaning batteries of different sizes, the position of the cleaning member 32 can be adjusted according to the height of the battery cell under the action of the second driving member 33, so as to facilitate the cleaning member 32 to fit the surface of the battery cell and then clean the battery cell.

[0037] In this embodiment, the first driving member 31 includes a telescopic cylinder. With the above structure, by setting the first driving member 31 as a telescopic cylinder, it is easy to drive the cleaning member 32 to telescope, so that the cleaning member 32 moves relative to the battery cell on the battery cell placement part 11 to complete the cleaning process.

[0038] In this embodiment, the second driving member 33 includes a screw motor. With the above structure, by setting the second driving member 33 as a screw motor, it is convenient to drive the mounting plate 34 to move vertically.

[0039] In this embodiment, the cleaning member 32 includes a cleaning brush for cleaning. The cleaning member 32 with the above structure is convenient for cleaning the battery cells of the battery cell placement portion 11.

[0040] It should be noted that the cleaning brush can also be replaced by a roller.

[0041] like Figure 2 and Figure 4 As shown, the detection member 22 includes a first test head 221, a second test head 222, a third drive member 223 and a fourth drive member 224. The third drive member 223 and the fourth drive member 224 are both fixedly arranged on the frame 21. The first test head 221 and the second test head 222 are respectively located on both sides of the battery cell placement portion 11. The third drive member 223 is connected to the first test head 221 by driving, and the fourth drive member 224 is connected to the second test head 222 by driving, so that the first test head 221 and the second test head 222 move and clamp the pole ear of the battery cell. With the above structure, the third drive member 223 is connected to the first test head 221 by driving, and the fourth drive member 224 is connected to the second test head 222 by driving, so that the first test head 221 and the second test head 222 can be controlled to move respectively, so that the first test head 221 and the second test head 222 can clamp the pole ear of the battery cell, so that the detection member 22 can be used to perform voltage testing on the battery cell.

[0042] It should be noted that a slide rail is provided on the side of the frame 21 facing the test platform 10, and slide grooves are provided on the first test head 221 and the second test head 222. The sliding cooperation between the slide rail and the slide groove facilitates the movement of the first test head 221 and the second test head 222 relative to the frame 21.

[0043] like Figure 3 and Figure 4As shown, the battery cell OCV test device also includes a base 51 and a fifth driving member 52. The fifth driving member 52 is arranged on the base 51. The fifth driving member 52 is connected to the lower end of the frame 21 so that the frame 21 can move closer to or away from the test platform 10. With the above structure, by setting the base 51 and the fifth driving member 52, the frame 21 is driven to move by the fifth driving member 52, and the movement of the frame 21 can simultaneously drive the detection member 22 to move, so that the distance of the frame 21 relative to the battery cell placement portion 11 can be adjusted according to the length of the battery cell, and the detection member 22 on the frame 21 can be used to detect the voltage of the battery cell.

[0044] like Figure 1 and Figure 3 As shown, the test platform 10 includes a turntable 12, on which a plurality of cell placement portions 11 are arranged, and the plurality of cell placement portions 11 are arranged at intervals along the circumference of the turntable 12. With the above structure, by arranging a plurality of cell placement portions 11 on the turntable 12, it is possible to facilitate voltage detection of a plurality of cells on the turntable 12, thereby improving detection efficiency, and facilitating the transportation of cells under the action of the turntable 12.

[0045] It should be noted that when the battery cell is placed on the battery cell placement portion 11, the turntable 12 is rotated to move the battery cell to the position of the detection member 22, and the voltage of the battery cell is tested by the detection member 22. The second driving member 33 is driven and connected to the mounting plate 34, so that the cleaning member 32 contacts the surface of the battery cell. The cleaning member 32 reciprocates on the surface of the battery cell under the action of the first driving member 31. While the cleaning member 32 reciprocates, the dust collecting member 40 performs negative pressure adsorption to absorb the cleaned metal particles and other foreign matter, thereby achieving the purpose of cleaning. It can also realize the simultaneous operation of two workstations, which solves the problem of cleaning the dirty surface of the battery cell while also being able to perform OCV testing.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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 OCV testing device, characterized in that: The battery cell OCV testing device comprises: A test platform (10) having a cell placement portion (11); A detection assembly (20) comprising a frame (21) and a detection member (22), wherein the frame (21) is arranged on one side of the test platform (10), the detection member (22) is movably arranged on the frame (21), and the detection member (22) has a testing portion that contacts a tab of a battery cell; The cleaning assembly (30) comprises a first driving member (31) and a cleaning member (32); the first driving member (31) is arranged on the frame (21); the first driving member (31) is drivingly connected to the cleaning member (32) so as to drive the cleaning member (32) to move relative to the battery cell placement portion (11).

2. The battery cell OCV testing device according to claim 1, characterized in that: The battery cell OCV testing device further comprises a dust suction piece (40), wherein a dust suction port of the dust suction piece (40) is arranged toward the battery cell placement portion (11).

3. The battery cell OCV testing device according to claim 2, characterized in that: The cleaning assembly (30) and the dust collecting member (40) are respectively located on two opposite sides of the battery cell placement portion (11).

4. The battery cell OCV testing device according to claim 2, characterized in that: The dust suction piece (40) comprises a dust suction head (41), a connecting pipe (42) and a vacuum pump; the dust suction port of the dust suction head (41) is extended along the length direction of the battery cell placement portion (11); the first end of the connecting pipe (42) is connected to the dust suction head (41); and the second end of the connecting pipe (42) is connected to the vacuum pump.

5. The battery cell OCV testing device according to any one of claims 1 to 4, characterized in that: The cleaning assembly (30) further comprises a second driving member (33) and a mounting plate (34); the second driving member (33) is arranged on the frame (21); the second driving member (33) is drivingly connected to the mounting plate (34) so ​​as to drive the mounting plate (34) to be movably arranged vertically; and the first driving member (31) is arranged on the mounting plate (34).

6. The battery cell OCV testing device according to claim 5, characterized in that: The first driving member (31) comprises a telescopic cylinder; and / or, The second driving member (33) comprises a screw motor.

7. The battery cell OCV testing device according to any one of claims 1 to 4, characterized in that: The cleaning member (32) comprises a cleaning brush for cleaning.

8. The battery cell OCV testing device according to any one of claims 1 to 4, characterized in that: The detection member (22) comprises a first test head (221), a second test head (222), a third drive member (223) and a fourth drive member (224); the third drive member (223) and the fourth drive member (224) are both fixedly arranged on the frame (21); the first test head (221) and the second test head (222) are respectively located on two sides of the battery cell placement portion (11); the third drive member (223) is drivingly connected to the first test head (221); and the fourth drive member (224) is drivingly connected to the second test head (222), so that the first test head (221) and the second test head (222) move and clamp the tabs of the battery cell.

9. The battery cell OCV testing device according to any one of claims 1 to 4, characterized in that: The battery cell OCV testing device further comprises a base (51) and a fifth driving member (52), wherein the fifth driving member (52) is arranged on the base (51), and the fifth driving member (52) is drivingly connected to the lower end of the frame (21) so that the frame (21) can move closer to or away from the testing platform (10).

10. The battery cell OCV testing device according to any one of claims 1 to 4, characterized in that: The test platform (10) comprises a turntable (12), on which a plurality of battery cell placement portions (11) are arranged, and the plurality of battery cell placement portions (11) are arranged at intervals along the circumference of the turntable (12).

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