CN211122992U - Battery resistance measuring device - Google Patents
Battery resistance measuring device Download PDFInfo
- Publication number
- CN211122992U CN211122992U CN201921655635.XU CN201921655635U CN211122992U CN 211122992 U CN211122992 U CN 211122992U CN 201921655635 U CN201921655635 U CN 201921655635U CN 211122992 U CN211122992 U CN 211122992U
- Authority
- CN
- China
- Prior art keywords
- battery
- bayonet
- limiting block
- negative electrode
- pressing block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a battery resistance measuring device, which comprises a puncture mechanism and a resistance tester, wherein the puncture mechanism comprises a cylinder, a puncture knife rest, a limiting block and a lug pressing block which are fixed on the cylinder, and a puncture knife is fixed on the puncture knife rest; after the battery runs to a discharge test position, the cylinder drives the lug pressing block, the limiting block and the bayonet to move downwards, the limiting block fixes the top sealing edge of the battery, the lug pressing block presses the positive and negative electrodes of the battery, and the bayonet pierces an aluminum-plastic film between the positive and negative electrode lugs of the top sealing edge and contacts the aluminum foil to form a loop with the negative electrode lug; and a positive probe of the resistance tester is connected with the bayonet, and a negative probe is connected with a lug pressing block on the negative electrode. The utility model adopts the bayonet type contact and the puncture direction is vertical, thereby increasing the area of contacting the aluminum foil layer and improving the precision of testing the resistance value of the battery; meanwhile, in order to ensure the overall appearance and performance effect of the battery, a limiting block is added in the device to limit the stroke of the bayonet, so that the bayonet of the puncturing mechanism is prevented from puncturing the aluminum-plastic film too deeply.
Description
Technical Field
The utility model relates to a lithium ion battery, a battery resistance measuring device very much.
Background
Lithium ion batteries have been widely used in the field of life of people, and have applications in portable consumer electronics such as mobile phones, notebook computers, cameras, and the like, as well as in new energy electric vehicles, aerospace, energy storage systems, and the like.
The current universal method for measuring the resistance of the lithium ion battery is a contact type or a needle prick type, and the contact type has the defects that poor contact is often caused, conductive cotton is frequently replaced and the like, so that the capacity of a production line is seriously influenced; the needle punching type battery resistance measuring device has the defects that the precision is not high, the measured battery resistance has certain errors, and when a nylon layer of an aluminum plastic film is punctured by a needle and contacts an aluminum foil, only a small area of contact or contact is unavailable, so that the measured battery resistance is inaccurate.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a high accuracy test resistance's device improves lithium ion battery test resistance's productivity.
The technical scheme of the utility model:
a battery resistance measuring device comprises a puncturing mechanism and a resistance tester, wherein the puncturing mechanism comprises an air cylinder, a puncturing tool rest, a limiting block and a lug pressing block which are fixed on the air cylinder, and a puncturing tool is fixed on the puncturing tool rest;
after the battery runs to a discharge test position, the cylinder drives the lug pressing block, the limiting block and the bayonet to move downwards, the limiting block fixes the top sealing edge of the battery, the lug pressing block presses the positive and negative electrodes of the battery, and the bayonet pierces an aluminum-plastic film between the positive and negative electrode lugs of the top sealing edge and contacts the aluminum foil to form a loop with the negative electrode lug;
and the positive probe of the resistance tester is connected with the bayonet, the negative probe is connected with the lug pressing block on the negative electrode, and the resistance of the battery is measured.
Preferably, after the battery runs at the discharging test position, the limiting block of the puncturing mechanism blocks the battery, so that the top sealing edge between one side of the limiting block and the positive and negative electrode lugs of the battery is on the same plane.
Preferably, the limiting block of the puncturing mechanism is pressed downwards to compress the top sealing edge between the positive and negative electrode lugs of the battery, and a limiting groove for the operation of the bayonet is reserved at the side of the limiting block.
Preferably, the depth of the limiting groove is 1 mm.
Preferably, the pole ear pressing block and the bayonet of the puncturing mechanism are pressed downwards simultaneously, and the pressing block is contacted with and pressed against the pole ear of the battery cathode; the bayonet simultaneously contacts and punctures the sealed edge of the battery top and contacts the aluminum foil layer in the aluminum-plastic film.
Preferably, the bayonet of the puncture mechanism can not exceed 1mm of the edge sealing at the top of the aluminum-plastic film when the bayonet is deeply inserted.
The utility model has the advantages that:
1. the device of the utility model mainly changes the traditional needle prick type or contact type for testing the battery resistance into the bayonet type and the puncture direction is vertical direction, thereby increasing the area of the contact aluminum foil layer and improving the precision for testing the battery resistance;
2. meanwhile, in order to ensure the overall appearance and performance effect of the battery, the limiting block is added to limit the stroke of the bayonet, so that the bayonet of the bayonet mechanism is prevented from puncturing the aluminum-plastic film too deeply, and the puncturing depth of the bayonet is not more than 1mm of the top sealed edge of the aluminum-plastic film.
3. The device and the method of the utility model are simple, low in cost and suitable for large-scale popularization and application.
Drawings
FIG. 1 is a schematic view of a piercing mechanism according to an embodiment of the present invention
FIG. 2 is a schematic view of a bayonet holder of a lancing mechanism according to an embodiment of the present invention;
fig. 3 is a schematic view of a tab pressing block of the piercing mechanism in the embodiment of the present invention;
FIG. 4 is a schematic view of a bayonet of a lancing mechanism according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a stopper of the puncturing mechanism in the example of the present invention.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the examples.
As shown in fig. 1, the utility model discloses a battery resistance measuring device, including piercing mechanism and resistance tester, piercing mechanism includes that cylinder and fixed thorn knife rest 1, stopper 2 and utmost point ear briquetting 3 on it are fixed with bayonet 4 on the thorn knife rest 1. As shown in fig. 2-5, the structure of the bayonet holder 1, the limiting block 2, the tab pressing block 3 and the bayonet 4 are shown schematically, and each component is fixed as an integral mechanism by a hexagonal screw.
After the battery 6 runs to a discharge test position, the cylinder drives the lug pressing block 3, the limiting block 2 and the bayonet frame 1 to move downwards, the limiting block 2 fixes the top sealing edge of the battery 6, the lug pressing block 3 tightly presses the positive and negative lugs of the battery, and the bayonet 1 pierces an aluminum plastic film between the positive and negative lugs of the top sealing edge and contacts the aluminum foil to form a loop with the negative lug 5;
and a positive probe of the resistance tester is connected with the bayonet 4, a negative probe is connected with a tab pressing block 3 of the negative electrode, and the resistance of the battery is measured.
After the battery runs at the discharging test position, the limiting block of the puncturing mechanism blocks the battery, so that the top sealing edge between one side of the limiting block and the positive and negative electrode lugs of the battery is on the same plane.
The limiting block of the puncturing mechanism is pressed downwards to compress the top sealing edge between the positive electrode lug and the negative electrode lug of the battery, as shown in fig. 5, a limiting groove for the operation of the bayonet is reserved at the side of the limiting block, and the depth of the limiting groove is 1 mm. When the bayonet of the puncture mechanism is deeply inserted, the bayonet cannot exceed 1mm of the edge sealing at the top of the aluminum-plastic film.
The punching mechanism is characterized in that a lug pressing block and a bayonet are pressed down simultaneously, and the pressing block is contacted with and pressed tightly against a battery negative pole lug; the bayonet simultaneously contacts and punctures the sealed edge of the battery top and contacts the aluminum foil layer in the aluminum-plastic film.
With traditional testing arrangement with the utility model discloses a testing arrangement tests 5000 batteries respectively and tests the contrast, fault rate, efficiency data as follows.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A battery resistance measuring device is characterized by comprising a puncturing mechanism and a resistance tester, wherein the puncturing mechanism comprises an air cylinder, a puncturing knife rest, a limiting block and a lug pressing block which are fixed on the air cylinder, and a puncturing knife is fixed on the puncturing knife rest;
after the battery runs to a discharge test position, the cylinder drives the lug pressing block, the limiting block and the bayonet to move downwards, the limiting block fixes the top sealing edge of the battery, the lug pressing block presses the positive and negative electrodes of the battery, and the bayonet pierces an aluminum-plastic film between the positive and negative electrode lugs of the top sealing edge and contacts the aluminum foil to form a loop with the negative electrode lug;
and the positive probe of the resistance tester is connected with the bayonet, the negative probe is connected with the lug pressing block on the negative electrode, and the resistance of the battery is measured.
2. The battery resistance measuring device according to claim 1, wherein after the battery runs to the discharge test position, the limiting block of the puncturing mechanism blocks the battery, so that one edge of the limiting block and the top sealing edge between the positive and negative electrode lugs of the battery are on the same plane.
3. The battery resistance measuring device according to claim 2, wherein the limiting block of the puncturing mechanism is pressed downwards to press the top sealing edge between the positive and negative electrode lugs of the battery, and a limiting groove for the operation of the bayonet is reserved at the side of the limiting block.
4. The battery resistance measuring device of claim 3, wherein the limiting groove has a depth of 1 mm.
5. The battery resistance measuring device according to claim 4, wherein the piercing mechanism tab pressing block and the piercing cutter are pressed down simultaneously, and the pressing block and the battery negative electrode tab are contacted with each other and pressed; the bayonet simultaneously contacts and punctures the sealed edge of the battery top and contacts the aluminum foil layer in the aluminum-plastic film.
6. The battery resistance measuring device of claim 5, wherein the puncture mechanism lancet does not exceed 1mm of the top seal edge of the aluminum plastic film when the puncture mechanism lancet is in depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655635.XU CN211122992U (en) | 2019-09-30 | 2019-09-30 | Battery resistance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655635.XU CN211122992U (en) | 2019-09-30 | 2019-09-30 | Battery resistance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211122992U true CN211122992U (en) | 2020-07-28 |
Family
ID=71705904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921655635.XU Active CN211122992U (en) | 2019-09-30 | 2019-09-30 | Battery resistance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211122992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609162A (en) * | 2019-09-30 | 2019-12-24 | 龙能科技(宁夏)有限责任公司 | Battery resistance measuring device and method |
-
2019
- 2019-09-30 CN CN201921655635.XU patent/CN211122992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609162A (en) * | 2019-09-30 | 2019-12-24 | 龙能科技(宁夏)有限责任公司 | Battery resistance measuring device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106025372B (en) | A kind of lithium battery aluminum-plastic film sealing machine with online Insulation monitoring function | |
| CN108508367A (en) | The detection method of flexible-packed battery pole group short circuit | |
| CN1929184B (en) | Method for manufacturing lithium ion battery | |
| CN109980289B (en) | Button battery manufacturing method based on vacuum liquid injection | |
| CN202434655U (en) | Polymer lithium ion battery aluminum-plastic membrane damage detection device | |
| CN211122992U (en) | Battery resistance measuring device | |
| CN103840216A (en) | Manufacturing method for lithium ion buckle type battery | |
| CN114982040A (en) | Three-electrode battery and energy storage system | |
| CN108281696A (en) | A kind of assemble method of lithium-ion button battery | |
| CN214378539U (en) | Automatic diaphragm starting device | |
| CN206270375U (en) | One kind pressurization button cell measuring clamp | |
| CN110609162A (en) | Battery resistance measuring device and method | |
| CN205911375U (en) | Lithium cell plastic -aluminum membrane packaging machine with online insulating function that detects | |
| JP2016122505A (en) | Nonaqueous electrolyte secondary battery, and method for evaluation of in-battery gas generation amount with such battery | |
| CN105301357A (en) | Simple sulphur-based solid electrolyte conductivity test method | |
| CN202917598U (en) | Edge cutting and edge voltage testing device for soft package lithium ion battery | |
| CN205450045U (en) | Novel lithium cell packaging film test conductive pin device | |
| CN204631075U (en) | A kind of new polymers lithium battery insulativity test fixture | |
| CN202928542U (en) | Integrated lithium ion battery detection device | |
| CN210323318U (en) | Detection apparatus for soft packet of plastic-aluminum membrane packaging performance of lithium cell | |
| CN211718088U (en) | Membrane puncture ability verifying attachment | |
| CN212340272U (en) | Burr detection device | |
| CN201110889Y (en) | Secondary batteries electrochemistry performance test apparatus | |
| CN204216167U (en) | Lithium-ion electric core body and the lithium ion battery with this battery core body | |
| CN217506073U (en) | Battery side voltage testing device and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220216 Address after: 710000 room 10701, building 6, No. 65, Keji Second Road, high tech Zone, Xi'an, Shaanxi Province Patentee after: Baoli New Energy Technology Co.,Ltd. Address before: 750411 longneng science and Technology Industrial Zone, Ningdong new energy industrial park, Yinchuan City, Ningxia Hui Autonomous Region Patentee before: LONGPOWERS TECHNOLOGY (NINGXIA) CO.,LTD. |