CN201867467U - Novel test circuit for battery equalization circuit - Google Patents

Novel test circuit for battery equalization circuit Download PDF

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Publication number
CN201867467U
CN201867467U CN 201020271391 CN201020271391U CN201867467U CN 201867467 U CN201867467 U CN 201867467U CN 201020271391 CN201020271391 CN 201020271391 CN 201020271391 U CN201020271391 U CN 201020271391U CN 201867467 U CN201867467 U CN 201867467U
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CN
China
Prior art keywords
circuit
test
resistance
battery equalization
equivalent load
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.)
Expired - Fee Related
Application number
CN 201020271391
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Chinese (zh)
Inventor
刘飞
阮旭松
柯志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou Epower Electronics Co Ltd
Original Assignee
Huizhou Epower Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huizhou Epower Electronics Co Ltd filed Critical Huizhou Epower Electronics Co Ltd
Priority to CN 201020271391 priority Critical patent/CN201867467U/en
Application granted granted Critical
Publication of CN201867467U publication Critical patent/CN201867467U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A novel test circuit for a battery equalization circuit comprises a peripheral auxiliary test circuit and a test target circuit, wherein the test target circuit comprises a balance equivalent load RL, a switch K connected in series with the balance equivalent load RL and a voltage sampling circuit for measuring the voltage between both ends of the balance equivalent load RL. The novel test circuit for the battery equalization circuit has simple circuit, the test accuracy and test efficiency are greatly improved, and the novel test circuit is suitable for the control over the battery equalization circuit in mass production.

Description

A kind of novel battery equalizing circuit test circuit
[technical field]
The utility model relates to a kind of circuit, specifically a kind of novel battery equalizing circuit test circuit.
[background technology]
Series connection electric battery has in groups obtained using widely in people's real life as power supply or back-up source.Yet in full accord owing to not accomplishing in production and the use, battery management system has generally all added balance module on the basis of voltage detecting, and this has just increased a production test project.People adopt the method that the method for testing of balance module all is based on observation euqalizing current or balanced pilot lamp at present, but when the increase of series connection joint number has brought new challenge to this method of testing, need to increase a lot of reometers or once test and need a lot of pilot lamp of range estimation, greatly reduce the accuracy and the inefficiency of test, be unfavorable for producing in batches.
[utility model content]
In view of this, the technical problems to be solved in the utility model provides the novel battery equalizing circuit test circuit that a kind of test result is accurate, testing efficiency is high.
A kind of novel battery equalizing circuit test circuit, this circuit comprises peripheral subtest circuit and test target circuit, and described test target circuit comprises a balanced equivalent load RL, the K switch of connecting with balanced equivalent load RL and the voltage sampling circuit of measuring equally loaded RL both end voltage.
Wherein, described peripheral subtest circuit comprises power supply, resistance R 1 and resistance R 2, and power supply, resistance R 1, equally loaded RL, K switch and resistance R 2 form the loop successively.
The utility model circuit is succinct, can improve the accuracy and the testing efficiency of test greatly, in being suitable for producing in batches to the control of battery equalizing circuit.
[description of drawings]
Fig. 1 is the utility model embodiment circuit diagram.
Be further detailed below in conjunction with accompanying drawing.
[embodiment]
In conjunction with the accompanying drawings the utility model structural principle is described for the ease of it will be appreciated by those skilled in the art that below by embodiment.
As shown in Figure 1, the battery equalizing circuit test circuit that this programme discloses is used for circuit of battery pack balancing is detected, and improves accuracy rating of tests and efficient, also is applicable to detect charge balancing and put an equalizing circuit.
This circuit comprises peripheral subtest circuit 1 and test target circuit 2, and this test target circuit 2 comprises a balanced equivalent load RL, the K switch of connecting with balanced equivalent load RL and the voltage sampling circuit 3 of measuring equally loaded RL both end voltage.Wherein, peripheral subtest circuit 1 comprises power supply, resistance R 1 and resistance R 2, and power supply, resistance R 1, equally loaded RL, K switch and resistance R 2 form the loop successively.
Test process: when test target circuit 2 needed to detect the equilibrium of certain road, K switch by the voltage sampling circuit of test target circuit 2, sampled the voltage Vab_1 of 2 of a and b, and writes down this value for before closing.Closing Switch K then, power unit in the peripheral subtest circuit 1 is by resistance R 1, resistance R 2 and measure equally loaded RL formation loop, because the dividing potential drop effect of resistance R 1 and resistance R 2, the voltage Vab_2 that a that this moment, test target circuit 2 continued to sample and b are 2, and write down this value, can test out the validity of equalizing circuit exactly by automatic calculating comparison Vab_1 and Vab_2.For example: the power supply of supposing peripheral subtest circuit 1 is 3V, and resistance R 1 value, resistance R 2 values and resistance R L value equate that impedance ratio resistance R 1, resistance R 2 and the resistance R L of test target voltage sample part are enough big.Before K switch was not closed, the voltage Vab_1 that a that test target circuit 2 samples, b are 2 approximated 3V; After the K switch closure, if equalizing circuit is effective, the voltage Vab_2 of 2 of a, the b that sample of test target circuit 2 approximates 1/3rd of Vab_1: 1V so.If equalizing circuit lost efficacy or be undesired, Vab_2 will equal Vab_1.Clearly, by switching in turn of K switch, relatively Vab_1 and Vab_2 can calculate the validity that each all organizes the weighing apparatus module very fast and accurately.
The above embodiment has only expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (2)

1. novel battery equalizing circuit test circuit, it is characterized in that: this circuit comprises peripheral subtest circuit (1) and test target circuit (2), and described test target circuit comprises a balanced equivalent load RL, the K switch of connecting with balanced equivalent load RL and the voltage sampling circuit (3) of measuring equally loaded RL both end voltage.
2. novel battery equalizing circuit test circuit according to claim 1, it is characterized in that: described peripheral subtest circuit comprises power supply, resistance R 1 and resistance R 2, and power supply, resistance R 1, equally loaded RL, K switch and resistance R 2 form the loop successively.
CN 201020271391 2010-07-23 2010-07-23 Novel test circuit for battery equalization circuit Expired - Fee Related CN201867467U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020271391 CN201867467U (en) 2010-07-23 2010-07-23 Novel test circuit for battery equalization circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020271391 CN201867467U (en) 2010-07-23 2010-07-23 Novel test circuit for battery equalization circuit

Publications (1)

Publication Number Publication Date
CN201867467U true CN201867467U (en) 2011-06-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201020271391 Expired - Fee Related CN201867467U (en) 2010-07-23 2010-07-23 Novel test circuit for battery equalization circuit

Country Status (1)

Country Link
CN (1) CN201867467U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102593903A (en) * 2012-02-28 2012-07-18 华霆(合肥)动力技术有限公司 Equalizing circuit for battery management system of electric automobile
CN106450529A (en) * 2016-11-30 2017-02-22 北京新能源汽车股份有限公司 Battery equalization control circuit and detection method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102593903A (en) * 2012-02-28 2012-07-18 华霆(合肥)动力技术有限公司 Equalizing circuit for battery management system of electric automobile
CN106450529A (en) * 2016-11-30 2017-02-22 北京新能源汽车股份有限公司 Battery equalization control circuit and detection method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110615

Termination date: 20190723