CN211348477U - Lithium battery protection board detection device - Google Patents
Lithium battery protection board detection deviceDownload PDFInfo
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- CN211348477U CN211348477UCN201922154463.4UCN201922154463UCN211348477UCN 211348477 UCN211348477 UCN 211348477UCN 201922154463 UCN201922154463 UCN 201922154463UCN 211348477 UCN211348477 UCN 211348477U
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- lithium battery
- battery protection
- protection board
- module
- detection device
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- WHXSMMKQMYFTQS-UHFFFAOYSA-NLithiumChemical compound[Li]WHXSMMKQMYFTQS-UHFFFAOYSA-N0.000titleclaimsabstractdescription89
- 229910052744lithiumInorganic materials0.000titleclaimsabstractdescription89
- 238000001514detection methodMethods0.000titleclaimsabstractdescription47
- 230000000087stabilizing effectEffects0.000claimsabstractdescription15
- 238000012360testing methodMethods0.000claimsabstractdescription8
- 238000006243chemical reactionMethods0.000claimsdescription26
- 238000007689inspectionMethods0.000claimsdescription6
- 230000004044responseEffects0.000abstractdescription8
- 238000000034methodMethods0.000description5
- 230000008569processEffects0.000description5
- 238000004088simulationMethods0.000description5
- 230000009471actionEffects0.000description3
- 238000010586diagramMethods0.000description3
- 239000000178monomerSubstances0.000description2
- 230000001681protective effectEffects0.000description2
- 230000006641stabilisationEffects0.000description2
- 238000011105stabilizationMethods0.000description2
- 238000012986modificationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 230000008439repair processEffects0.000description1
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Abstract
Description
Technical Field
The application relates to the field of lithium batteries, in particular to a lithium battery protection board detection device.
Background
Lithium battery protection board is the important protective equipment in the system of using the lithium cell, when the lithium cell overcharge or overdischarge, can protect the lithium cell, thereby guarantee system safety, consequently, need detect the protect function of lithium battery protection board, current detection device adopts software and hardware integrated mode, because current detection device precision is than higher, the cost is corresponding higher, a detection device probably will reach several tens of thousands to hundreds of thousands, its testing process of current detection device needs to rely on software programming to realize simultaneously, software detects response speed slowly, make detection efficiency lower.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lithium battery protection shield detection device realizes the detection to lithium battery protection shield operating condition through hardware, and response speed is fast, and direct current steady voltage source and divider resistance adopt software and hardware integrated detection device, with low costs among the prior art.
In order to solve the technical problem, the application provides a lithium battery protection board detection device, includes: direct current steady voltage source, instruction module and resistance module including a plurality of divider resistance, wherein:
the first end of each divider resistor is connected with the output end of the direct-current voltage stabilizing source, the second end of each divider resistor is connected with the acquisition pins of the lithium battery protection board in a one-to-one correspondence manner, and the indication module is connected with the protection output pins of the lithium battery protection board;
the direct-current voltage stabilizing source is used for outputting a preset voltage according to the current test rule so that the resistance module can simulate the overvoltage state/undervoltage state of the lithium battery pack;
the indicating module is used for indicating the working state of the lithium battery protection board;
the number of the divider resistors is determined by the number of the acquisition pins of the lithium battery protection board.
Preferably, the lithium battery protection board detection device further comprises a signal generator and a plurality of conversion modules, wherein:
the first end of each conversion module is connected with the signal generator, the second end of each conversion module is connected with the direct current voltage stabilizing source, and the third end of each conversion module is connected with the voltage dividing resistors in a one-to-one correspondence mode.
Preferably, the conversion module comprises a single-pole double-throw switch, a first fixed end of the single-pole double-throw switch is used as a first end of the conversion module, a second fixed end of the single-pole double-throw switch is used as a second end of the conversion module, and a movable end of the single-pole double-throw switch is used as a third end of the conversion module.
Preferably, the indication module includes:
the controllable switch is connected with the protection output pin of the lithium battery protection board;
and the indicating unit is connected with the controllable switch.
Preferably, the controllable switch is a MOS transistor.
Preferably, the indicating unit is an indicating lamp.
Preferably, the indicating unit is a voltmeter.
Preferably, the lithium battery protection board detection device further includes:
and the adjustable resistor is connected with the detection pin of the lithium battery protection board.
The application provides a lithium battery protection board detection device, through divider resistance simulation monomer battery, then utilize direct current steady voltage source output to predetermine the overcharge or the overdischarge of voltage simulation group battery, thereby verify the operating condition of lithium battery protection board, the operating condition through indicating module demonstration lithium battery protection board simultaneously, the operator of being convenient for looks over, this application realizes the detection to lithium battery protection board operating condition through hardware, response speed is fast, and direct current steady voltage source and divider resistance compare in prior art and adopt the integrated detection device of software and hardware, and is with low costs.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the prior art and the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a lithium battery protection board detection device provided in the present application;
fig. 2 is a schematic structural diagram of another lithium battery protection board detection device provided by the present application.
Detailed Description
The core of this application is to provide a lithium battery protection shield detection device, realizes the detection to lithium battery protection shield operating condition through hardware, and response speed is fast, and direct current steady voltage source and divider resistance compare in prior art and adopt software and hardware integrated detection device, and are with low costs.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Lithium battery protection board is the important protective equipment in the system of using the lithium cell, when the lithium cell overcharge or overdischarge, can protect the lithium cell, thereby guarantee system safety, consequently, need detect the protect function of lithium battery protection board, current detection device adopts software and hardware integrated mode, because current detection device precision is than higher, the cost is corresponding higher, a detection device probably will reach several tens of thousands to hundreds of thousands, its testing process of current detection device needs to rely on software programming to realize simultaneously, software detects response speed slowly, make detection efficiency lower. Based on the problems of the related art, the present application provides a new lithium battery protection board detection device through the following embodiments, which can achieve the purposes of realizing the detection of the working state of the lithium battery protection board through hardware, having a fast response speed, and reducing the cost.
The following describes a lithium battery protection board detection device provided by the present application in detail.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a lithium battery protection board detection device provided in the present application, where the lithium battery protection board detection device includes:
direct current regulator power supply 1,instruction module 3 reachesresistance module 2 including a plurality of divider resistance, wherein:
the first end of each divider resistor is connected with the output end of the direct-current voltage stabilizing source 1, the second end of each divider resistor is connected with the acquisition pins of the lithium battery protection board in a one-to-one correspondence manner, and theindication module 3 is connected with the protection output pins of the lithium battery protection board;
the direct current voltage stabilizing source 1 is used for outputting a preset voltage according to a current test rule so that theresistance module 2 can simulate an overvoltage state/an undervoltage state of the lithium battery pack;
the indicatingmodule 3 is used for indicating the working state of the lithium battery protection board;
the number of the divider resistors is determined by the number of the acquisition pins of the lithium battery protection board.
Specifically, theresistance module 2 in this embodiment simulates the battery pack voltage according to the resistance voltage division principle. According to the difference of the collection string number of the lithium battery protection board, the number of the divider resistors in theresistor module 2 should be correspondingly adjusted, and it can be understood that the resistance values of the divider resistors in theresistor module 2 are the same. When 13 or 16 divider resistors with the same resistance value are selected, when a voltage is applied to the first resistor string to the last resistor string by using the direct current voltage stabilizing source 1, the voltage obtained by each resistor string is the same according to the resistor divider, so that the voltage of the battery pack can be simulated. The protection function of the lithium battery protection board can be verified by adjusting the output voltage of the direct current voltage stabilization source 1 to simulate the overvoltage state and the undervoltage state of the battery pack. Theresistance module 2 may be a voltage dividing resistance plate.
Specifically, an adjustable direct-current voltage stabilizing source 1 is applied to the divider resistors to simulate battery voltage, a collecting line of each divider resistor is connected to a socket pin butted with the lithium battery protection board, and the lithium battery protection board can detect the voltage of each string of cells through the socket pin. And then the full-charge or empty-discharge state of the battery pack can be simulated by adjusting the direct-current voltage stabilization source 1, so that the protection function of the lithium battery protection board can be observed. When the protection is opened or not, a corresponding indication signal is output to theindication module 3, theindication module 3 indicates corresponding information according to the received indication signal, and a user can judge the working state of the lithium battery protection board according to the information provided by theindication module 3, so as to judge whether the lithium battery protection board can be normally used.
As a preferred embodiment, referring to fig. 2, theindication module 3 may include anMOS tube 31 and an indication unit, where the indication unit may be an indication lamp X1, and if the battery pack under-voltage state is simulated by the dc voltage regulator 1 and theresistance module 2, at this time, the lithium battery protection board should start its protection function, if the lithium battery protection board normally starts its protection function, the lithium battery protection board may output an indication signal to theMOS tube 31 through a pin connected to theMOS tube 31 to control theMOS tube 31 to turn off, so as to turn off the indication lamp X1 connected to theMOS tube 31, otherwise, if the indication lamp X1 is still in a lit state, it is indicated that the lithium battery protection board is unprotected, and at this time, the worker should repair and/or replace the lithium battery protection board. Further, the indicating unit can adopt an indicating lamp X1, and can also select a voltmeter.
The application provides a lithium battery protection board detection device, through divider resistance simulation monomer battery, then utilize direct current steady voltage source output to predetermine the overcharge or the overdischarge of voltage simulation group battery, thereby verify the operating condition of lithium battery protection board, the operating condition through indicating module demonstration lithium battery protection board simultaneously, the operator of being convenient for looks over, this application realizes the detection to lithium battery protection board operating condition through hardware, response speed is fast, and direct current steady voltage source and divider resistance compare in prior art and adopt the integrated detection device of software and hardware, and is with low costs.
On the basis of the above-described embodiment:
as a preferred embodiment, the lithium battery protection board detection device further comprises a signal generator and a plurality of conversion modules, wherein:
the first end of each conversion module is connected with the signal generator, the second end of each conversion module is connected with the direct current voltage stabilizing source 1, and the third end of each conversion module is connected with the divider resistors in a one-to-one correspondence mode.
As a preferred embodiment, the conversion module comprises a single-pole double-throw switch, a first fixed end of the single-pole double-throw switch is used as a first end of the conversion module, a second fixed end of the single-pole double-throw switch is used as a second end of the conversion module, and a movable end of the single-pole double-throw switch is used as a third end of the conversion module.
Specifically, in order to avoid the problem of inaccurate voltage precision when the divider resistor divides voltage, multifunctional signal generator output leads are added at two ends of the resistor. The conversion module can control the voltage of a certain section of single body to obtain an accurate voltage value according to the requirement, so that the overcharge protection threshold value and the overdischarge protection threshold value of the lithium battery protection board can be accurately verified, and the reliability of the application is improved.
Specifically, referring to fig. 2, in fig. 2, VDC4 represents the dc voltage regulator source 1, VDC1 represents the signal generator, the conversion module may specifically select a single-pole double-throw switch, the single-pole double-throw switch is represented by Si, the voltage dividing resistor is represented by Ri, i is 1, 2, … …, 13, and a power supply (the dc voltage regulator source 1 or the multifunctional signal generator) for providing voltage is selected for the corresponding voltage dividing resistor by changing a stationary terminal of the single-pole double-throw switch connected to a moving terminal, so that a certain voltage may be controlled as required to obtain an accurate voltage value.
As a preferred embodiment, the lithium battery protection board inspection device further includes:
and the adjustable resistor R14 is connected with the detection pin of the lithium battery protection board.
Specifically, the adjustable resistor R14 can be selected from a resistor box, the resistance of the temperature-sensitive resistor is simulated by changing the resistance of the resistor box, and temperature protection is verified conveniently and quickly.
The voltage of the battery pack is simulated through the direct current voltage stabilizing source 1 by utilizing a resistance voltage division principle, the multifunctional signal generator is applied to output accurate voltage to detect the lithium battery protection board, meanwhile, the resistance value output by the resistance box is used for simulating the resistance value of the temperature-sensitive resistor, the temperature acquisition accuracy and the protection threshold value of the lithium battery protection board are verified, the equipment investment is small, the cost of the resistance voltage dividing plate and the direct current voltage stabilizing source 1 is low, the purchase is convenient, and the price of the resistance box is also low; the detection device provided by the application does not need software programming, and can meet the test requirement only by assembling and improving ready-made equipment; the detection efficiency is high, the flow does not need to be walked during the test, and the direct simulation protection threshold value observes theMOS pipe 31 state that the lithium cell protection shield connects can.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. 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 application. Thus, the present application 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. The utility model provides a lithium cell protection shield detection device which characterized in that includes: direct current steady voltage source, instruction module and resistance module including a plurality of divider resistance, wherein:
the first end of each divider resistor is connected with the output end of the direct-current voltage stabilizing source, the second end of each divider resistor is connected with the acquisition pins of the lithium battery protection board in a one-to-one correspondence manner, and the indication module is connected with the protection output pins of the lithium battery protection board;
the direct-current voltage stabilizing source is used for outputting a preset voltage according to the current test rule so that the resistance module can simulate the overvoltage state/undervoltage state of the lithium battery pack;
the indicating module is used for indicating the working state of the lithium battery protection board;
the number of the divider resistors is determined by the number of the acquisition pins of the lithium battery protection board.
2. The lithium battery protection board inspection device according to claim 1, further comprising a signal generator and a plurality of conversion modules, wherein:
the first end of each conversion module is connected with the signal generator, the second end of each conversion module is connected with the direct current voltage stabilizing source, and the third end of each conversion module is connected with the voltage dividing resistors in a one-to-one correspondence mode.
3. The lithium battery protection panel detection device as claimed in claim 2, wherein the conversion module comprises a single-pole double-throw switch, a first fixed terminal of the single-pole double-throw switch is used as the first terminal of the conversion module, a second fixed terminal of the single-pole double-throw switch is used as the second terminal of the conversion module, and a moving terminal of the single-pole double-throw switch is used as the third terminal of the conversion module.
4. The lithium battery protection board inspection device according to claim 1, wherein the indication module includes:
the controllable switch is connected with the protection output pin of the lithium battery protection board;
and the indicating unit is connected with the controllable switch.
5. The lithium battery protection board detection device as claimed in claim 4, wherein the controllable switch is a MOS transistor.
6. The lithium battery protection board inspection device according to claim 4, wherein the indication unit is an indicator lamp.
7. The lithium battery protection board inspection device according to claim 4, wherein the indicating unit is a voltmeter.
8. The lithium battery protection panel inspection device according to any one of claims 1 to 7, further comprising:
and the adjustable resistor is connected with the detection pin of the lithium battery protection board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922154463.4UCN211348477U (en) | 2019-12-03 | 2019-12-03 | Lithium battery protection board detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922154463.4UCN211348477U (en) | 2019-12-03 | 2019-12-03 | Lithium battery protection board detection device |
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| Publication Number | Publication Date |
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| CN211348477Utrue CN211348477U (en) | 2020-08-25 |
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| CN201922154463.4UActiveCN211348477U (en) | 2019-12-03 | 2019-12-03 | Lithium battery protection board detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285463A (en)* | 2020-10-13 | 2021-01-29 | 安徽锐能科技有限公司 | Testing device and method for lithium battery protection board and storage medium |
| CN114217194A (en)* | 2021-11-23 | 2022-03-22 | 河北博威集成电路有限公司 | Testing device |
- 2019
- 2019-12-03CNCN201922154463.4Upatent/CN211348477U/enactiveActive
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285463A (en)* | 2020-10-13 | 2021-01-29 | 安徽锐能科技有限公司 | Testing device and method for lithium battery protection board and storage medium |
| CN114217194A (en)* | 2021-11-23 | 2022-03-22 | 河北博威集成电路有限公司 | Testing device |
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