CN204631181U - The testing circuit of a kind of rechargeable battery positive and negative electrode reversal connection - Google Patents

The testing circuit of a kind of rechargeable battery positive and negative electrode reversal connection Download PDF

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Publication number
CN204631181U
CN204631181U CN201520365168.2U CN201520365168U CN204631181U CN 204631181 U CN204631181 U CN 204631181U CN 201520365168 U CN201520365168 U CN 201520365168U CN 204631181 U CN204631181 U CN 204631181U
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China
Prior art keywords
resistance
optocoupler
diode
negative electrode
stabilivolt
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Active
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CN201520365168.2U
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Chinese (zh)
Inventor
张德宽
张军军
乔奕玮
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Tianjin Fangyuan Electric Co Ltd
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Tianjin Fangyuan Electric Co Ltd
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Abstract

The utility model relates to the testing circuit of a kind of rechargeable battery positive and negative electrode reversal connection, its technical characterstic is: comprise resistance, stabilivolt, diode, optocoupler, resistance R1 is connected with DC output terminal V+, the other end of resistance R1 is connected with the negative electrode of stabilivolt VD1, the anode of stabilivolt VD1, the anode of diode D1 is connected with the diode cathode of optocoupler GD1, the negative electrode of diode D1, the diode anode of optocoupler GD1 is connected with DC output terminal V-, the transistor emitter of optocoupler GD1 meets signal ground GND, the transistor collector of optocoupler GD1 and resistance R2, test point RVE is connected and outputs to control module, the other end of resistance R2 is connected to positive level+V1.The utility model is reasonable in design, achieves the active detecting function of charging device to charging battery electrode reversal connection, effectively protects charging device and rechargeable battery, has hardware and maintenance cost is low, reliability is high, social benefit and the feature such as economic benefit is obvious.

Description

The testing circuit of a kind of rechargeable battery positive and negative electrode reversal connection
Technical field
The utility model belongs to charging set field, the testing circuit of especially a kind of rechargeable battery positive and negative electrode reversal connection.
Background technology
In the widespread use of a lot of industry spot due to high power battery group, prevent the problem of the positive and negative electrode reversal connection of charging device and rechargeable battery from becoming increasingly conspicuous, but on market, visible charging set product majority does not have anti-reverse strategy.Minority prevents to connect instead by the color-match of device lead-out terminal and battery terminal; Export the anti-also diode of both positive and negative polarity by device in addition and be connected in series the method for fastp-acting fuse, when battery reversal connection, fuse is blown by diode by short-circuit current, with reaching the order of protection battery and charging set.Above-mentioned two kinds of methods have certain feasibility, but the first scheme is still difficult to avoid mistake reversal connection battery, causes the damage of battery and device; Although first scheme can reach the order ground of protection, also have device damage to ruin the problem needing replacing, the input of manpower and materials is inevitable.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of testing circuit of rechargeable battery positive and negative electrode reversal connection reasonable in design, stable and reliable for performance and easy to use.
The utility model solves its technical matters and takes following technical scheme to realize:
The testing circuit of a kind of rechargeable battery positive and negative electrode reversal connection, comprise resistance R1, stabilivolt VD1, diode D1, optocoupler GD1 and resistance R2, one end of resistance R1 is connected with the DC output terminal V+ of charging device, the other end of resistance R1 is connected with the negative electrode of stabilivolt VD1, the anode of stabilivolt VD1, the anode of diode D1 is connected with the diode cathode of optocoupler GD1, the negative electrode of diode D1, the diode anode of optocoupler GD1 is connected with the DC output terminal V-of charging device, the transistor emitter of optocoupler GD1 meets signal ground GND, the transistor collector of optocoupler GD1 and resistance R2, test point RVE is connected and outputs to the control module of charging device, the other end of resistance R2 is connected to positive level+V1.
And the testing circuit that described resistance R1, stabilivolt VD1, diode D1, optocoupler GD1 and resistance R2 are formed is arranged in charging device.
Advantage of the present utility model and good effect are:
1, this testing circuit is connected between lead-out terminal in charging device and control module; when check point electric voltage exception; notice control module sends sound and light alarm alert and corrects wiring; achieve the measuring ability of rechargeable battery both positive and negative polarity and device lead-out terminal reverse polarity connection, this active safeguard measure, protects charging device and battery; improve the reliability of charging device; save maintenance cost with artificial, have very large practical value, and bring good economic benefit.
2, the utility model is relative to traditional reverse connecting protection scheme, avoids Short-Circuit High Current and impacts the damage of charging device internal power device and the infringement to battery, save maintenance cost simultaneously.
3, circuit of the present utility model is simple and practical, for automatically detecting, protecting, alarm mode, does not have device damage, without the need to artificial reparation, reduces system hardware cost, maintenance cost, effectively enhance system reliability.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described:
A testing circuit for rechargeable battery positive and negative electrode reversal connection, as shown in Figure 1, comprises resistance R1, stabilivolt VD1, diode D1, optocoupler GD1 and resistance R2.One end of resistance R1 is connected with the DC output terminal V+ of charging device, the other end of resistance R1 is connected with the negative electrode of stabilivolt VD1, the anode of stabilivolt VD1 is connected with the pin two (diode cathode) of optocoupler GD1 with the anode of diode D1, the negative electrode of diode D1, the pin one (diode anode) of optocoupler GD1 is connected with the DC output terminal V-of charging device, the pin 3 (transistor emitter) of optocoupler GD1 meets signal ground GND, the pin 4 (transistor collector) of optocoupler GD1 and one end of resistance R2, test point RVE is connected and outputs to the control module of charging device, the other end of resistance R2 is connected to positive level+V1.The battery reversal connection detection signal RVE of test point RVE is as detecting the necessary condition run; participate in the control strategy of charging device; and as the necessary and sufficient condition that reverse connecting protection is reported to the police; control module is received this battery reversal connection detection signal RVE and is judged; when battery reversal connection detection signal RVE is high level; rechargeable battery positive and negative electrode is connected with charging device normally; if when battery reversal connection detection signal RVE is low level; rechargeable battery positive and negative electrode and charging device connection error; control module sends alerting signal accordingly, and alert corrects wiring.
Principle of work of the present utility model is:
When rechargeable battery correctly accesses, anode connects charging device output terminal V+, and battery cathode connects charging device output terminal V-.In testing circuit, electric current is by resistance R1, stabilivolt VD1 and the circulation of diode D1 forward, and optocoupler GD1 input end is in oppositely by state, and battery reversal connection detection signal RVE is high level, and charging device can normally work.
When rechargeable battery backward error accesses, anode coupling arrangement output terminal V-, battery cathode connects charging device output terminal V+.In testing circuit, electric current is by 1 pin of optocoupler GD1,2 pin, stabilivolt VD1 and resistance R1 reverse circulated; diode D1 is in oppositely by state; the optocoupler of optocoupler GD1 inside is in forward conduction state; battery reversal connection detection signal RVE is low level; control module obtains battery reversal connection signal, and starting protection function also sends alerting signal.After battery correctly accesses by staff, detection signal RVE recovers high level, and system failure protection is removed, and Ke Yi Jin is capable to be charged normal.
This testing circuit is arranged on charging device inside, by the both positive and negative polarity direct-detection to external connection battery, and by resistance, after stabilivolt dividing potential drop, according to diode forward conducting, oppositely by principle, obtain voltage signal and be transferred to control module by optocoupler.The model of the resistance R1 in testing circuit, stabilivolt VD1 and diode D1, quantity and power grade, can suitably adjust according to the grade of output voltage and select.
It is emphasized that; embodiment described in the utility model is illustrative; instead of it is determinate; therefore the utility model comprises the embodiment be not limited to described in embodiment; every other embodiments drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope of the utility model protection equally.

Claims (2)

1. the testing circuit of rechargeable battery positive and negative electrode reversal connection, it is characterized in that: comprise resistance R1, stabilivolt VD1, diode D1, optocoupler GD1 and resistance R2, one end of resistance R1 is connected with the DC output terminal V+ of charging device, the other end of resistance R1 is connected with the negative electrode of stabilivolt VD1, the anode of stabilivolt VD1, the anode of diode D1 is connected with the diode cathode of optocoupler GD1, the negative electrode of diode D1, the diode anode of optocoupler GD1 is connected with the DC output terminal V-of charging device, the transistor emitter of optocoupler GD1 meets signal ground GND, the transistor collector of optocoupler GD1 and resistance R2, test point RVE is connected and outputs to the control module of charging device, the other end of resistance R2 is connected to positive level+V1.
2. the testing circuit of a kind of rechargeable battery positive and negative electrode according to claim 1 reversal connection, is characterized in that: the testing circuit that described resistance R1, stabilivolt VD1, diode D1, optocoupler GD1 and resistance R2 are formed is arranged in charging device.
CN201520365168.2U 2015-06-01 2015-06-01 The testing circuit of a kind of rechargeable battery positive and negative electrode reversal connection Active CN204631181U (en)

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Application Number Priority Date Filing Date Title
CN201520365168.2U CN204631181U (en) 2015-06-01 2015-06-01 The testing circuit of a kind of rechargeable battery positive and negative electrode reversal connection

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Application Number Priority Date Filing Date Title
CN201520365168.2U CN204631181U (en) 2015-06-01 2015-06-01 The testing circuit of a kind of rechargeable battery positive and negative electrode reversal connection

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107748337A (en) * 2017-11-09 2018-03-02 常州格力博有限公司 More battery strings joint inspection slowdown monitoring circuits
US20180123355A1 (en) * 2016-10-28 2018-05-03 Starkey Laboratories, Inc. Charging systems for contact chargers and related methods
US10424955B2 (en) 2016-10-28 2019-09-24 Starkey Laboratories, Inc. Charging system with compressible contacts
CN112748375A (en) * 2019-10-31 2021-05-04 上海度普新能源科技有限公司 Battery cell line sequence detection system
CN113687152A (en) * 2020-05-19 2021-11-23 比亚迪股份有限公司 Direct current charging pile test system, direct current charging pile test method and test controller

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180123355A1 (en) * 2016-10-28 2018-05-03 Starkey Laboratories, Inc. Charging systems for contact chargers and related methods
US10424955B2 (en) 2016-10-28 2019-09-24 Starkey Laboratories, Inc. Charging system with compressible contacts
US10491024B2 (en) * 2016-10-28 2019-11-26 Starkey Laboratories, Inc. Charging systems for contact chargers and related methods
US10923929B2 (en) 2016-10-28 2021-02-16 Starkey Laboratories, Inc. Charging system with compressible contacts
CN107748337A (en) * 2017-11-09 2018-03-02 常州格力博有限公司 More battery strings joint inspection slowdown monitoring circuits
CN112748375A (en) * 2019-10-31 2021-05-04 上海度普新能源科技有限公司 Battery cell line sequence detection system
CN112748375B (en) * 2019-10-31 2022-07-29 上海度普新能源科技有限公司 Electricity core line preface detecting system
CN113687152A (en) * 2020-05-19 2021-11-23 比亚迪股份有限公司 Direct current charging pile test system, direct current charging pile test method and test controller
CN113687152B (en) * 2020-05-19 2022-10-18 比亚迪股份有限公司 Direct current charging pile test system, direct current charging pile test method and test controller

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