CN204538138U - The miniature cut-off switch of a kind of lithium battery - Google Patents
The miniature cut-off switch of a kind of lithium battery Download PDFInfo
- Publication number
- CN204538138U CN204538138U CN201520206425.8U CN201520206425U CN204538138U CN 204538138 U CN204538138 U CN 204538138U CN 201520206425 U CN201520206425 U CN 201520206425U CN 204538138 U CN204538138 U CN 204538138U
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- CN
- China
- Prior art keywords
- sheet metal
- microswitch
- block
- type lithium
- receiving electrode
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- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides the miniature cut-off switch of a kind of lithium battery, comprises a microswitch, and microswitch is provided with two receiving electrodes, it is characterized in that, uses a diode to connect two receiving electrodes.When microswitch closes, electric current flows in block-type lithium cell core, diode not conducting; Once microswitch because block-type lithium battery distortion and disconnect, connect power consumption equipment time, electric current from block-type lithium cell core to outflow, diode current flow.So just make after microswitch tripping operation, block-type lithium cell core still can discharge use.
Description
Technical field
The utility model relates to a kind of microswitch, particularly relates to a kind of microswitch for lithium cell charging protection.
Background technology
When using block-type lithium battery, the charging interval is long or use the capacitor of super rated voltage, and block-type lithium cell core will expand and heave, and as power-off not in time, can cause exploding.In order to solve charge protection problem, prior art is exactly install a miniature cut-off switch on the surface of block-type lithium cell core, when block-type lithium cell core has certain rising to rouse distortion, and will power-off.Microswitch is that a kind of physical force being converted into makes electric switch open or close so that the compact switch of the actuating force making inner contact open or close.Because the distortion of type lithium cell core can make the plug-in strip of microswitch lift and realize power-off.There is a problem in current this charge protection scheme, once microswitch is opened because of charge protection, the circuit of block-type lithium battery is just disconnected, and these block-type lithium batteries often also store electric energy in inside, but these electric energy but cannot use.
Summary of the invention
For solving the problem, the utility model provides the miniature cut-off switch of a kind of lithium battery, and it can make block-type lithium battery still export electric energy after microswitch tripping operation.
The utility model adopts following technical proposals to realize: the miniature cut-off switch of a kind of lithium battery, comprises a microswitch, and microswitch is provided with two receiving electrodes, it is characterized in that, uses a diode to connect two receiving electrodes.
It is the chip of G5T26 that microswitch comprises a model, chip is connected to receiving electrode and receiving electrode, an indirect diode of receiving electrode and receiving electrode, chip is external two sheet metals also, not conducting between sheet metal and sheet metal, one piece of sheet metal and a receiving electrode conducting, another block sheet metal and another receiving electrode conducting.
Chip is fixed on the upper surface centre position of block-type lithium cell core by a block plate, pads rubber sheet gasket between steel plate and block-type lithium cell core.One piece of fixed iron piece is installed in position of keeping to the side in the side of block-type lithium cell core upper surface, and fixed iron piece fixes plug-in strip by screw, and the outer end of plug-in strip and sheet metal contact with sheet metal and make sheet metal and sheet metal conducting.
Technique effect of the present utility model: when microswitch closes, electric current flows in block-type lithium cell core, diode not conducting; Once microswitch because block-type lithium battery distortion and disconnect, connect power consumption equipment time, electric current from block-type lithium cell core to outflow, diode current flow.So just make after microswitch tripping operation, block-type lithium cell core still can discharge use.
Accompanying drawing explanation
Fig. 1 is the principle schematic of miniature cut-off switch described in the utility model.
Fig. 2 is the schematic diagram of the utility model embodiment 1.
Embodiment
For the ease of understanding, below in conjunction with drawings and Examples, the utility model is illustrated further.
As shown in Figure 1, this miniature cut-off switch, comprises a microswitch 1, and microswitch is provided with receiving electrode 102 and receiving electrode 103, connects between receiving electrode 102 and receiving electrode 103 with a diode 4.So namely, by microswitch 1 open circuit, after open circuit simultaneously, by diode 4 conducting.
Embodiment 1
The application example of a miniature cut-off switch of the present invention on block-type lithium battery is provided here, as shown in Figure 2, microswitch 1 comprises the chip 101 that a model is G5T26, chip 101 is connected to receiving electrode 102 and receiving electrode 103, an indirect diode 4 of receiving electrode 102 and receiving electrode 103, chip 101 is an external sheet metal 104 and a sheet metal 105 also, not conducting between sheet metal 104 and sheet metal 105, sheet metal 104 and receiving electrode 102 conducting, sheet metal 105 and receiving electrode 103 conducting.
Chip 101 is fixed on the upper surface centre position of block-type lithium cell core 5 by a block plate 107, pads rubber sheet gasket between steel plate 107 and block-type lithium cell core 5.One piece of fixed iron piece 108 is installed in position of keeping to the side in the side of block-type lithium cell core 5 upper surface, fixed iron piece 108 fixes plug-in strip 106 by screw, the outer end of plug-in strip 106 and sheet metal 104 contact with sheet metal 105 and make sheet metal 104 and sheet metal 105 conducting, once block-type lithium cell core 5 is because charging or using overheated and be out of shape, the upper surface of block-type lithium cell core 5 can not be a plane, plug-in strip 106 can be made to tilt and depart from sheet metal 104 and sheet metal 105 realizes open circuit.And elastomeric material 109 can be added at plug-in strip 106 installation end, it can make to maintain a certain distance between plug-in strip 106 and block-type li battery shell, does not hinder again plug-in strip 106 to tilt because of distortion simultaneously.
Receiving electrode 102 connects the positive terminal on block-type li battery shell, receiving electrode 103 is connected with the positive pole of block-type lithium cell core 5, the circuit that diode 4 makes, still can discharge after so just making microswitch 1 open circuit to receiving electrode 102 one-way conduction from receiving electrode 103.
Claims (3)
1. the miniature cut-off switch of lithium battery, comprises a microswitch (1), and microswitch (1) is provided with two receiving electrodes (102,103), it is characterized in that, uses a diode (4) to connect two receiving electrodes (102,103).
2. the miniature cut-off switch of lithium battery according to claim 1, it is characterized in that, microswitch (1) comprises a chip (101), chip (101) is connected to receiving electrode (102) and receiving electrode (103), an indirect diode (4) of receiving electrode (102) and receiving electrode (103), chip (101) is an external sheet metal (104) and a sheet metal (105) also, not conducting between sheet metal (104) and sheet metal (105), sheet metal (104) and receiving electrode (102) conducting, sheet metal (105) and receiving electrode (103) conducting, chip (101) is fixed on the upper surface centre position of block-type lithium cell core (5) by a block plate (107), one piece of fixed iron piece (108) is installed in position of keeping to the side in the side of block-type lithium cell core (5) upper surface, fixed iron piece (108) fixes plug-in strip (106) by screw, the outer end of plug-in strip (106) and sheet metal (104) contact with sheet metal (105) and make sheet metal (104) and sheet metal (105) conducting.
3. the miniature cut-off switch of lithium battery according to claim 1, is characterized in that, the model of described chip (101) is G5T26.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206425.8U CN204538138U (en) | 2015-04-08 | 2015-04-08 | The miniature cut-off switch of a kind of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206425.8U CN204538138U (en) | 2015-04-08 | 2015-04-08 | The miniature cut-off switch of a kind of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538138U true CN204538138U (en) | 2015-08-05 |
Family
ID=53752105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520206425.8U Expired - Fee Related CN204538138U (en) | 2015-04-08 | 2015-04-08 | The miniature cut-off switch of a kind of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204538138U (en) |
-
2015
- 2015-04-08 CN CN201520206425.8U patent/CN204538138U/en not_active Expired - Fee Related
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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: 20150805 Termination date: 20190408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |