CN203025300U - Clamp suitable for testing lithium ion batteries and cells - Google Patents
Clamp suitable for testing lithium ion batteries and cells Download PDFInfo
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- CN203025300U CN203025300U CN 201320008402 CN201320008402U CN203025300U CN 203025300 U CN203025300 U CN 203025300U CN 201320008402 CN201320008402 CN 201320008402 CN 201320008402 U CN201320008402 U CN 201320008402U CN 203025300 U CN203025300 U CN 203025300U
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- fixed board
- riser
- lithium ion
- movable riser
- battery
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Abstract
The utility model relates to the field of a lithium ion battery, and discloses a clamp suitable for testing lithium ion batteries and cells. The clamp comprises a base plate, a first fixed riser, a second fixed riser, a movable riser and a drive device, wherein the base plate, the first fixed riser, the second fixed riser and the movable riser are electric conductors; the first fixed riser, the second fixed riser and the movable riser are respectively vertical to the base plate and arranged at the top surface of the base plate; the first fixed riser and the movable riser are respectively and orthogonally connected with the second fixed riser; the movable riser is horizontally opposite to the first fixed riser; the drive device is also connected to the back side, opposite to the first fixed riser, of the movable riser; and the movable riser is driven by the drive device to horizontally move along the direction vertical to the first fixed riser. The clamp facilitates effective detection on micro short circuit of the lithium ion batteries or cells, and the detection rate of the micro short circuit is improved.
Description
Technical field
The utility model relates to the lithium ion battery field, particularly a kind of fixture that is applicable to lithium ion battery and battery core test.
Background technology
Since the lithium ion battery commercialization nineties in 20th century, lithium ion battery has become one of main power source of the portable type electronic products such as mobile communication, notebook computer with its high-energy-density, high voltage, energy density advantages of higher.
In carrying out the utility model research process, the inventor finds prior art, and there are the following problems at least:
At present lithium ion manufacturing enterprise also often runs into the situation of lithium ion battery micro-short circuit in lithium ion battery sale of finished goods process, the undertension that causes battery, even cause battery short circuit, caused great harmful effect for user's application impression and the quality image of enterprise.
The utility model content
The utility model embodiment the first purpose is to provide a kind of fixture that is applicable to lithium ion battery and battery core test, uses the micro-short circuit that this fixture is conducive to effectively detect lithium ion battery or lithium-ion electric core, improves the recall rate of micro-short circuit.
First aspect, a kind of fixture that is applicable to lithium ion battery and battery core test that the utility model embodiment provides comprises: base plate, the first fixed board, the second fixed board, movable riser, drive unit,
Described base plate, the first fixed board, the second fixed board, movable riser are electric conductor,
Described the first fixed board, the second fixed board, movable riser are vertical with described base plate respectively, are positioned at the end face of described base plate,
Described the first fixed board, movable riser respectively with described mutually orthogonal connection of the second fixed board, described movable riser and described the first fixed board be level over against;
Also be connected with drive unit on described movable riser with on described the first fixed board opposing back side, described movable riser under the driving of described drive unit along move horizontally on the direction perpendicular to described the first fixed board.
Alternatively, surface relative with described movable riser on described the first fixed board also is provided with equally distributed salient point, and/or,
Surface relative with described the first fixed board on described movable riser also is provided with equally distributed salient point.
Alternatively, in the described salient point of described the first fixed board and the described salient point position on described movable riser mutually over against.
Alternatively, the size of each described salient point, height of projection are distinguished identical.
Alternatively, described drive unit comprises: cylinder and the gas bar that is connected with described cylinder, be respectively arranged with air pipe interface on each described cylinder, and described air pipe interface can be connected by the air pump of external tracheae with the outside;
Described gas bar is mutually vertical with the back side of described movable riser.
Alternatively, described cylinder is the binary cylinder that is provided with two interconnective air cavitys, is connected with respectively described gas bar on each air cavity
Therefore, use the present embodiment technical scheme, because the movable riser of the fixture of the present embodiment can be vertically movable to the first fixed board side activity under the driving of drive unit, therefore carry out being adequately compressed in the micro-short circuit test process carrying out lithium ion battery or battery core, be conducive to avoid that in prior art, the degree that is extruded due to battery or battery core to lithium ion battery or the test of battery core micro-short circuit the time causes the undetected situation of part micro-short circuit not.
In addition, adopt the fixture of the present embodiment, with respect to the technical scheme that single battery in prior art is tested respectively, adopt the present embodiment technical scheme also further to be conducive to the batch testing of battery or battery core, and be conducive to improve efficient and the operation ease of test.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, does not consist of to improper restriction of the present utility model, in the accompanying drawings:
The perspective view of the fixture that is applicable to the test of lithium ion battery and battery core that Fig. 1 provides for the utility model embodiment 1;
The plan structure schematic diagram of the fixture that is applicable to the test of lithium ion battery and battery core that Fig. 2 provides for the utility model embodiment 1.
Reference numeral:
Base plate: 101; The first fixed board: 102; The second fixed board: 103;
Movable riser: 104; Drive unit: 105; Cylinder: 1051;
Gas bar: 1052; Air pipe interface: 1053.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to restriction of the present utility model.
Embodiment 1:
The short circuit of lithium ion battery, micro-short circuit are large problems of puzzlement manufacturer.
Battery short circuit be mainly the both positive and negative polarity of battery occured the contact cause, its reason more complicated:
Be on the one hand the manufacture process reason, electrode surperficial jagged punctured barrier film and caused the both positive and negative polarity short circuit, or inappropriate technology causes when manufacturing;
Be that use procedure causes on the other hand, battery is overheated, and barrier film melts the short circuit that causes.
And the situation of the micro-short circuit of battery is more complicated, and be not easy to be detected, the pole plate burr that is mainly battery causes, particularly in the process that lithium battery is using, also may form due to the crystallization of lithium metal dendritic crystallization and produce the pole plate burr and easily cause micro-short circuit, serious cause large short circuit.Microcircuit can cause undertension in the process of using, bring great impact to application.
The present embodiment is mainly the short circuit of lithium ion battery and the test of micro-short circuit provides a kind of test fixture.
Shown in Fig. 1-3.
The present embodiment provides a kind of a kind of test fixture that is specially adapted to short circuit or the micro-short circuit test of lithium ion battery and lithium-ion electric core.Lithium ion battery wherein or lithium-ion electric core can but be not limited to convoluted or laminated type, the test fixture of the present embodiment is applicable to the constant lithium ion battery of any thickness.
The test fixture of the present embodiment mainly comprises respectively to be made by conductor material (for example can but be not limited to the metals such as aluminium, copper, stainless steel): base plate 101, the first fixed board 102, the second fixed board 103, movable riser 104, drive unit 105.
The annexation of this test fixture each several part is as follows: base plate 101 is horizontally disposed with as the article carrying platform of this test fixture, the first fixed board 102, the second fixed board 103, movable riser 104 are vertical with base plate 101 respectively, and lay respectively at the end face of base plate 101.The first fixed board 102, movable riser 104 be respectively with second fixed board 103 is mutually orthogonal is connected, movable riser 104 and the first fixed board 102 be level over against, thereby form one on the floor, the carrying square space of open top and a lateral opening.
When the test fixture of application the present embodiment is tested lithium ion battery, a plurality of lithium ion batteries erectly are arranged in this square space, orientation is: by the first fixed board 102 to movable riser 104 direction linearly, one side make the surface that is attached to tightly the second fixed board 103 of lithium ion battery.after placing lithium ion battery, start drive unit 105, drive unit 105 driving activity risers 104 perpendicular to the first fixed board 102 to the first fixed board 102 near and dwindle distance between the first fixed board 102 and movable riser 104, when certain distance is arrived in movable riser 104 activities, lithium ion battery or the battery core of arranging produced the effect of pushing, continue extruding, thereby make the shell of each lithium ion battery that is positioned at fixture fully contact, and fully contact with fixture, an electrode (being often negative pole) as each lithium ion battery or lithium-ion electric core housing fully is connected with the mutual conduction of fixture contact like this.When testing, one of them test pen of the both positive and negative polarity of micro short-circuit detector is fixedly connected with fixture, another test pen respectively with fixture in the not identical electrode of the upper and shell polarity of fixing each lithium ion battery contact respectively, can determine respectively the micro-short circuit situation of each lithium ion battery or battery core, in time reject battery or the battery core of micro-short circuit, and avoid the defective products of micro-short circuit to dispatch from the factory due to undetected.
Therefore, use the present embodiment technical scheme, because the movable riser 104 of the fixture of the present embodiment can be vertically movable to the first fixed board 102 side activities under the driving of drive unit 105, therefore carry out being adequately compressed in the micro-short circuit test process carrying out lithium ion battery or battery core, be conducive to avoid that in prior art, the degree that is extruded due to battery or battery core to lithium ion battery or the test of battery core micro-short circuit the time causes the undetected situation of part micro-short circuit not.
In addition, adopt the fixture of the present embodiment, with respect to the technical scheme that single battery in prior art is tested respectively, adopt the present embodiment technical scheme also further to be conducive to the batch testing of battery or battery core, and be conducive to improve efficient and the operation ease of test.
in the present embodiment, can also evenly be provided with salient point (not shown in FIG.) on surface relative with movable riser 104 on the first fixed board 102 of the present embodiment fixture, therefore when adjustment activity riser 104 is opposite to battery between movable riser 104 and the first fixed board 102 or battery core and pushes, owing to also evenly being provided with salient point on this surface, each salient point on the first fixed board 102 carries out point-to-point the contact but not aspectant contact with battery or battery core respectively, make on the extruding force of battery or battery core identical basis, improve the stressed of each tested battery or the squeezed pressure point of battery core, further improve the rate that is detected of micro-short circuit.
in the present embodiment, can also evenly be provided with salient point on surface relative with the first fixed board 102 on movable riser 104 (not shown in FIG., this moment can but be not limited on the first fixed board 102, salient point is not set), in like manner, when adjustment activity riser 104 is opposite to battery between movable riser 104 and the first fixed board 102 or battery core and pushes, each salient point on movable riser 104 carries out point-to-point the contact but not aspectant contact with battery or battery core respectively, make on the extruding force of battery or battery core identical basis, improve the stressed of each tested battery or the squeezed pressure point of battery core, further improve the rate that is detected of micro-short circuit.
in the present embodiment, can also be on movable riser 104 and the first fixed board 102 mutually over against the surface go up respectively and evenly be provided with salient point (not shown in FIG.), with in like manner upper, when adjustment activity riser 104 is opposite to battery between movable riser 104 and the first fixed board 102 or battery core and pushes, each salient point on movable riser 104 and the first fixed board 102 carries out point-to-point contact but not aspectant contact to battery or battery core jointly, make on the extruding force of battery or battery core identical basis, further improve the stressed of each tested battery or the squeezed pressure point of battery core, further improve the rate that is detected of micro-short circuit.In addition, each salient point on movable riser 104 and the first fixed board 102 surfaces can also be arranged in the present embodiment relative level over against, further improve each salient point to the squeeze pressure of the extruding point of the battery between salient point or battery core, further adjust the recall rate of micro-short circuit.
Wherein, the height of projection of salient point that can also each is surperficial and the size of salient point are arranged to identical, the extruding dynamics homogeneity when further being conducive to adjustment activity riser 104 extruding batteries or battery core, detection efficiency and the recall rate of raising micro-short circuit.
In the present embodiment, can but be not limited to be provided for by the following technical solutions the drive unit 105 of driving activity riser 104 motions:
described drive unit 105 comprises: cylinder 1051 and the gas bar 1052 that is connected with cylinder 1051, gas bar 1052 is mutually vertical with the back side of movable riser 104, be respectively arranged with air pipe interface 1053 on each cylinder 1051, can be connected at the air pump of the external tracheae of air pipe interface 1053 with the outside when using, the air pressure of control cylinder 1051 under the air pressure of air pump drives, thereby drive the motion of the gas bar 1052 on cylinder 1051, make it apply the pressure of level to movable riser 104, driving activity riser 104 moves to the first fixed board 102, make the driving of movable riser 104 be easy to realize, be conducive to the realization of automatic test.
In the present embodiment, its cylinder 1051 can but be not limited to: be provided with the binary cylinder 1051 of the air cavity that is interconnected, be connected with respectively a gas bar 1052 on each air cavity.Like this, when the motion of driving activity riser 104, adopt two gas bars 1052 to drive the even application of force that further is conducive to movable riser 104 and drive, be conducive to improve stabilized structure and the durability of fixture.
Above-described embodiment does not consist of the restriction to this technical scheme protection domain.Any at above-mentioned embodiment spirit and principle within do modification, be equal to and replace and improvement etc., within all should being included in the protection domain of this technical scheme.
Claims (6)
1. a fixture that is applicable to lithium ion battery and battery core test, is characterized in that, comprising: base plate, the first fixed board, the second fixed board, movable riser, drive unit,
Described base plate, the first fixed board, the second fixed board, movable riser are electric conductor,
Described the first fixed board, the second fixed board, movable riser are vertical with described base plate respectively, are positioned at the end face of described base plate,
Described the first fixed board, movable riser respectively with described mutually orthogonal connection of the second fixed board, described movable riser and described the first fixed board be level over against;
Also be connected with drive unit on described movable riser with on described the first fixed board opposing back side, described movable riser under the driving of described drive unit along move horizontally on the direction perpendicular to described the first fixed board.
2. the fixture that is applicable to lithium ion battery and battery core test according to claim 1, is characterized in that,
Surface relative with described movable riser on described the first fixed board also is provided with equally distributed salient point, and/or,
Surface relative with described the first fixed board on described movable riser also is provided with equally distributed salient point.
3. the fixture that is applicable to lithium ion battery and battery core test according to claim 2, is characterized in that,
In the described salient point of described the first fixed board and the described salient point position on described movable riser mutually over against.
4. the according to claim 2 or 3 described fixtures that are applicable to lithium ion battery and battery core test, is characterized in that,
The size of each described salient point, height of projection are distinguished identical.
5. the arbitrary described fixture that is applicable to lithium ion battery and battery core test of according to claim 1 to 3, is characterized in that,
Described drive unit comprises: cylinder and the gas bar that is connected with described cylinder, be respectively arranged with air pipe interface on each described cylinder, and described air pipe interface can be connected by the air pump of external tracheae with the outside;
Described gas bar is mutually vertical with the back side of described movable riser.
6. the fixture that is applicable to lithium ion battery and battery core test according to claim 5, is characterized in that,
Described cylinder is the binary cylinder that is provided with two interconnective air cavitys, is connected with respectively described gas bar on each air cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008402 CN203025300U (en) | 2013-01-08 | 2013-01-08 | Clamp suitable for testing lithium ion batteries and cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008402 CN203025300U (en) | 2013-01-08 | 2013-01-08 | Clamp suitable for testing lithium ion batteries and cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025300U true CN203025300U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320008402 Expired - Fee Related CN203025300U (en) | 2013-01-08 | 2013-01-08 | Clamp suitable for testing lithium ion batteries and cells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203025300U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474700A (en) * | 2013-07-26 | 2013-12-25 | 合肥国轩高科动力能源股份公司 | Screening method for self-discharging of square lithium ion batteries |
| CN104049115A (en) * | 2014-06-16 | 2014-09-17 | 毛广甫 | Polymer soft package battery detecting clamp |
| CN105643507A (en) * | 2016-02-02 | 2016-06-08 | 北方奥钛纳米技术有限公司 | Clamp used for testing dimension of flexible-package cell |
| CN106338697A (en) * | 2016-11-29 | 2017-01-18 | 宁波拜特测控技术股份有限公司 | Clamping device for soft package battery tab and detection system for soft package battery |
| CN109490792A (en) * | 2018-10-19 | 2019-03-19 | 合肥国轩高科动力能源有限公司 | A kind of fail battery selection method in the big mould group of lithium ion battery self discharge |
-
2013
- 2013-01-08 CN CN 201320008402 patent/CN203025300U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474700A (en) * | 2013-07-26 | 2013-12-25 | 合肥国轩高科动力能源股份公司 | Screening method for self-discharging of square lithium ion batteries |
| CN103474700B (en) * | 2013-07-26 | 2016-05-18 | 合肥国轩高科动力能源有限公司 | A kind of rectangular lithium ion battery self discharge screening technique |
| CN104049115A (en) * | 2014-06-16 | 2014-09-17 | 毛广甫 | Polymer soft package battery detecting clamp |
| CN104049115B (en) * | 2014-06-16 | 2017-02-01 | 深圳市瑞能实业股份有限公司 | Polymer soft package battery detecting clamp |
| CN105643507A (en) * | 2016-02-02 | 2016-06-08 | 北方奥钛纳米技术有限公司 | Clamp used for testing dimension of flexible-package cell |
| CN106338697A (en) * | 2016-11-29 | 2017-01-18 | 宁波拜特测控技术股份有限公司 | Clamping device for soft package battery tab and detection system for soft package battery |
| CN109490792A (en) * | 2018-10-19 | 2019-03-19 | 合肥国轩高科动力能源有限公司 | A kind of fail battery selection method in the big mould group of lithium ion battery self discharge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20160108 |