CN209764974U - Electricity core short circuit test system - Google Patents
Electricity core short circuit test system Download PDFInfo
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- CN209764974U CN209764974U CN201920057815.1U CN201920057815U CN209764974U CN 209764974 U CN209764974 U CN 209764974U CN 201920057815 U CN201920057815 U CN 201920057815U CN 209764974 U CN209764974 U CN 209764974U
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- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 230000005611 electricity Effects 0.000 title abstract description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052744 lithium Inorganic materials 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of the lithium cell detection technique and specifically relates to an electricity core short circuit test system, it comprises electricity core transfer chain and short circuit testing arrangement etc. and wherein, above-mentioned short circuit testing arrangement comprises first electrical contact unit and second electrical contact unit. When the battery cell is tested for a short time, the first electric contact unit and the second electric contact unit move oppositely so as to be communicated with a positive electrode lug and a negative electrode lug of the battery cell respectively. The first electric contact unit and the second electric contact unit respectively comprise a base, an auxiliary piece vertically fixed on the base and a clamping piece which reciprocates in a radial direction relative to the base. The chucking spare carries out circumference equipartition around above-mentioned auxiliary member. When the clamping member is in the tightened state, a cavity is formed which is adapted to the outer side wall of the auxiliary member. Therefore, the electric contact unit can be reliably and stably contacted with the positive electrode lug and the negative electrode lug of the battery cell, and is in surface contact, so that the poor contact phenomenon is effectively prevented, and the accuracy of a short circuit test result is improved.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell detects technique and specifically relates to an electricity core short circuit test system.
Background
In the production process of the battery, metal particles are often mixed in the lithium battery due to careless leakage of process control, and the metal particles pierce a diaphragm between a positive material belt and a negative material belt due to temperature and various impacts in the use of the battery, so that the short circuit of the battery is caused, the qualification rate of the battery core is seriously influenced under the condition, and meanwhile, troubles are caused for the quality sorting work of the battery core.
In order to solve the above problem, a short circuit testing process is usually added after the cell is rolled, and in the prior art, as shown in fig. 1, an electrical contact unit (e.g., a testing probe) is usually used to turn on the positive and negative electrode tabs of the battery so as to obtain the capacity of the battery. However, the positive and negative electrode tabs are both elastic, which easily causes poor contact between the electrical contact unit and the tab, and easily causes test misjudgment. Thus, a skilled person is urgently needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an electric core short circuit test system that structural design is simple, and the reliable and detection accuracy of working property is high.
In order to solve the technical problem, the utility model relates to an electricity core short circuit test system, include:
The battery cell conveying line is used for intermittently conveying the battery cells;
And the short circuit testing device is used for switching on the positive and negative plates of the battery cell to perform short circuit testing.
The short circuit test device is composed of a first electric contact unit and a second electric contact unit. When the battery cell is tested for a short time, the first electric contact unit and the second electric contact unit move oppositely so as to be communicated with a positive electrode lug and a negative electrode lug of the battery cell respectively. The first electric contact unit and the second electric contact unit respectively comprise a base, an auxiliary piece vertically fixed on the base and a clamping piece which reciprocates in a radial direction relative to the base. Chucking spare sets up to a plurality ofly, carries out circumference equipartition around above-mentioned auxiliary member. When the clamping member is in the tightened state, a cavity is formed which is adapted to the outer side wall of the auxiliary member.
furthermore, the first electric contact unit and the second electric contact unit are detachably fixed on the first support frame through the connecting seat, and the position of the first electric contact unit and the position of the second electric contact unit relative to the first support frame can be adjusted in the front-back direction. The first support frame can be adjusted vertically relative to the back plate of the whole machine. The base can carry out the position adjustment of left and right direction for the connecting seat.
Furthermore, a support piece used for circumferentially positioning the battery cell is arranged on the battery cell conveying line. The top of the supporting piece is provided with a positioning notch.
Furthermore, the cell short-circuit testing system further comprises a cell position adjusting device which is arranged at the upstream of the short-circuit testing device.
Furthermore, the cell position adjusting device is composed of a first abutting unit and a second abutting unit. The first abutting unit and the second abutting unit comprise a base and an abutting piece vertically fixed on the base. The first abutting unit and the second abutting unit move oppositely so as to adjust the axial position of the battery core.
Furthermore, the working parts of the auxiliary part and the abutting part corresponding to the battery core are all set to be conical.
Further, the abutment member is a travel pin.
Further, the auxiliary piece is arranged to be of a rod-shaped structure, and correspondingly, the working surface of the clamping piece is arranged to be of an inwards concave arc shape.
Compared with the traditional electric core short circuit test system, the electric contact unit and the positive and negative electrode lugs of the electric core can be reliably and stably contacted and are in surface contact by adopting the technical scheme, so that the occurrence of poor contact is effectively prevented, the accuracy of a short circuit test result is improved, and the occurrence of a test misjudgment phenomenon is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an operating principle of a cell short circuit test system in the prior art.
Fig. 2 is a schematic structural diagram of a cell short circuit testing system according to a first embodiment of the present invention.
Fig. 3 is the utility model discloses short circuit testing arrangement's among electric core short circuit test system schematic structure.
Fig. 4 is a schematic structural view of a first electrical contact unit in the short circuit testing apparatus.
Fig. 5 is a schematic structural diagram of a cell short circuit testing system according to a second embodiment of the present invention.
Fig. 6 is the structure diagram of the cell position adjusting device in the cell short circuit testing system of the present invention.
Fig. 7 is a schematic structural view of the first abutting unit in the cell position adjusting device of the present invention.
Fig. 8 is a schematic structural diagram of the support member in the cell conveying line of the present invention.
1-cell conveying line; 11-a support; 111-locating notches; 2-short circuit testing means; 21-a first electrical contact unit; 211-a base; 212-an auxiliary; 213-a clip; 22-a second electrical contact element; 23-a connecting seat; 24-on the first support frame; 3-a cell position adjusting device; 31-a first abutting unit; 311-a base; 312-a depending member; 32-second abutting unit.
Detailed Description
In the description of the present invention, it is to be understood that the terms "left", "right", "front", "back", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The present invention will be described in detail with reference to the accompanying drawings, and fig. 2 shows a schematic structural diagram of a cell short circuit testing system of the present invention, which is composed of a cell conveying line 1, a short circuit testing device 2, and the like, wherein the cell conveying line 1 is used for intermittently conveying cells, and includes a circulating conveyor belt, and a series of supporting members 11 are fixed on the conveyor belt. A positioning notch 111 (shown in fig. 8) is formed at the top of the support member 11 for positioning the battery cell; the short circuit testing device 2 is used for connecting the positive and negative plates of the battery cell to perform a short circuit test.
Fig. 3 shows a schematic structural diagram of a short circuit testing device in a cell short circuit testing system of the present invention, which is composed of two independent electrical contact units, and for convenience of description with reference to the accompanying drawings, the two electrical contact units are respectively named as a first electrical contact unit 21 and a second electrical contact unit 22. When the cell is subjected to a short-time test, the first electrical contact unit 21 and the second electrical contact unit 22 move in opposite directions to be connected with the positive tab and the negative tab of the cell respectively. The first electrical contact unit 21 includes a base 211, an auxiliary member 212 vertically fixed to the base 211, and a chucking member 213 radially reciprocating with respect to the base 211. The gripping members 213 are provided in three, circumferentially equispaced around the auxiliary member 212 (as shown in figure 4). When the clamping member 213 is in the tightened state by the cylinder, a cavity is formed which fits into the outer side wall of the auxiliary member 212. The second electrical contact element 22 corresponds to the above-described configuration of the first electrical contact element 21. Compare in traditional electric core short circuit test system, set up through adopting above-mentioned technical scheme, when carrying out actual test to electric core, the just, negative pole ear of its tip all moves towards along the length direction of its auxiliary member 212 outer wall, and then chucking spare 213 tightens up the action to make just, the negative pole ear pastes with the form of face contact on auxiliary member 212. Therefore, the first electrical contact unit 21 and the second electrical contact unit 22 are reliably and stably contacted with the positive electrode tab and the negative electrode tab of the battery cell respectively, poor contact can be effectively prevented, the accuracy of a short-circuit test result is improved, and the occurrence of a test misjudgment phenomenon is avoided.
As a further optimization, the working portion of the auxiliary member 212 may preferably be designed to be conical to facilitate the movement of the positive and negative tabs along the outer wall thereof, ensuring reliable contact with the first electrical contact unit 21 and the second electrical contact unit 22.
For reasons of manufacturing cost and ease of movement control, the auxiliary member 212 is preferably a rod-like structure, and accordingly, the working surface of the clamping member 213 is configured as a concave arc shape, and together form a complete circular cavity structure when the clamping member 213 is in the tightened state.
Of course, the specific number of the clamping members 213 and the driving manner of the radial movement can be designed according to the actual situation, but care should be taken to ensure the accuracy of the position and the synchronism of the movement of each clamping member 213 relative to the central auxiliary member 212.
Furthermore, in order to reduce the influence of the relative position of the battery cell on the accuracy of the test result, the first electrical contact unit 21 and the second electrical contact unit 22 are both designed to be position-adjustable, and the specific structure can be implemented as follows: a first support frame 24 is vertically fixed on a back plate (not shown) of the whole machine, and the first electric contact unit 21 and the second electric contact unit 22 are detachably fixed on the first support frame 24 through a connecting seat, and are provided with long-strip-shaped kidney-shaped holes so that the two can be adjusted in position in the front-back direction relative to the first support frame 24. The first support frame 24 is also provided with a long-strip kidney-shaped hole so that the position of the first support frame relative to the back plate of the whole machine can be adjusted in the vertical direction. Similarly, a long waist-shaped hole is also formed in the base 211, so that the position of the base can be adjusted in the left-right direction relative to the connecting seat 23. The maximum limit values of the adjustment amounts in the three directions are set according to actual conditions.
fig. 5 shows a schematic structural diagram of a cell short circuit testing system in a second embodiment of the present invention, and a cell position adjusting device 3 is additionally provided on the basis of the first embodiment, and is disposed at the upstream of the short circuit testing device 2. The cell position adjusting device 3 can realize the micro-adjustment of the axial position of the cell through the action of the cell position adjusting device, so that the next cell short circuit testing procedure is prepared, and the relative positions of the positive and negative electrode ears of the cell relative to the auxiliary part 212 and the clamping part 213 are ensured.
The cell position adjustment device 3 is composed of two abutting units (as shown in fig. 6) facing each other, and for convenience of description with reference to the drawings, the two abutting units are respectively named as a first abutting unit 31 and a second abutting unit 32. The first abutting unit 31 is composed of a base 311, an abutting member 312 vertically fixed to the base 311, and the like (as shown in fig. 7). The second abutting unit 32 has the same configuration as the first abutting unit 31. The first abutting unit 31 and the second abutting unit 32 move towards each other under the action of the air cylinder so as to adjust the axial position of the battery core. The working portion of each abutting member 312 corresponding to the battery cell may preferably be provided with a conical shape.
Based on the same design concept, the cell position adjusting device 3 may also be designed to be adjustable, so that the abutting member 312 can adjust the position in the vertical, horizontal, and front-back directions relative to the back plate of the whole machine, and the short circuit testing device can be specifically configured by analogy with the short circuit testing device 2.
Here, it should be noted that, in addition to the above-described cylinder, a linear motor or the like may be used as the power unit according to actual circumstances.
Finally, when the stroke error of the cylinder is too large or the error operation occurs, the two abutting pieces 312 disposed at the end of the battery cell are likely to cause pressure loss to the abutting pieces themselves, and in order to avoid the above phenomenon, the abutting pieces 312 may preferably be stroke pins, and have a certain elastic and retractable amount.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A cell short circuit test system, comprising:
The battery cell conveying line is used for intermittently conveying the battery cells;
The short circuit testing device is used for switching on the positive and negative plates of the battery cell to perform short circuit testing; the short circuit testing device is characterized by comprising a first electric contact unit and a second electric contact unit; when the battery cell is tested for a short time, the first electric contact unit and the second electric contact unit move oppositely so as to be communicated with a positive electrode lug and a negative electrode lug of the battery cell respectively; the first electric contact unit and the second electric contact unit respectively comprise a base, an auxiliary piece vertically fixed on the base and a clamping piece which reciprocates in a radial direction relative to the base; the clamping pieces are arranged in a plurality of numbers and are uniformly distributed around the auxiliary piece in the circumferential direction; when the clamping piece is in a tightening state, a cavity matched with the outer side wall of the auxiliary piece is formed.
2. The cell short-circuit testing system according to claim 1, wherein the first electrical contact unit and the second electrical contact unit are detachably fixed to a first support frame through a connecting seat, and are adjustable in position in a front-back direction with respect to the first support frame; the first support frame can be adjusted in the vertical direction relative to the back plate of the whole machine; the base can be adjusted in position in the left-right direction relative to the connecting seat.
3. The cell short-circuit test system according to any of claims 1 to 2, wherein a support member for circumferentially positioning the cells is provided on the cell feed line; and a positioning notch is arranged at the top of the supporting piece.
4. The cell short circuit test system of claim 3, further comprising a cell position adjustment device disposed upstream of the short circuit test device.
5. The cell short circuit testing system according to claim 4, wherein the position adjusting device is composed of a first abutting unit and a second abutting unit; the first abutting unit and the second abutting unit respectively comprise a base and an abutting piece vertically fixed on the base; the first abutting unit and the second abutting unit move oppositely so as to adjust the axial position of the battery core.
6. The cell short circuit testing system of claim 5, wherein the auxiliary member and the working portion of the abutting member corresponding to the cell are both provided with conical shapes.
7. The cell short-circuit test system according to any of claims 5 to 6, wherein the abutment member is a travel pin.
8. The cell short circuit testing system of claim 1, wherein the auxiliary member is configured as a bar-shaped structure, and correspondingly, the working surface of the clamping member is configured as an inward concave arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920057815.1U CN209764974U (en) | 2019-01-14 | 2019-01-14 | Electricity core short circuit test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920057815.1U CN209764974U (en) | 2019-01-14 | 2019-01-14 | Electricity core short circuit test system |
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| Publication Number | Publication Date |
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| CN209764974U true CN209764974U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920057815.1U Active CN209764974U (en) | 2019-01-14 | 2019-01-14 | Electricity core short circuit test system |
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| CN (1) | CN209764974U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116256652A (en) * | 2021-12-09 | 2023-06-13 | 广东湾际盛鼎检测技术有限公司 | Full-automatic battery short-circuit testing machine |
| CN116298959A (en) * | 2021-12-03 | 2023-06-23 | 广东湾际盛鼎检测技术有限公司 | Battery short circuit detection device |
-
2019
- 2019-01-14 CN CN201920057815.1U patent/CN209764974U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116298959A (en) * | 2021-12-03 | 2023-06-23 | 广东湾际盛鼎检测技术有限公司 | Battery short circuit detection device |
| CN116256652A (en) * | 2021-12-09 | 2023-06-13 | 广东湾际盛鼎检测技术有限公司 | Full-automatic battery short-circuit testing machine |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 15 Mudu East Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province 215000 Patentee after: Suzhou jieruisi Intelligent Technology Co., Ltd Address before: Zhujiang Road Wuzhong District Mudu town of Suzhou city in Jiangsu province 215000 No. 368 (Mudu high tech Venture Park A025 room) Patentee before: Suzhou Jieruisi Automation Equipment Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CP02 | Change in the address of a patent holder |
Address after: 215000 No. 9, Zhufeng Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou jieruisi Intelligent Technology Co.,Ltd. Address before: 215000 No.15, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: Suzhou jieruisi Intelligent Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |