CN211856855U

CN211856855U - Detection apparatus for battery management system gathers pencil

Info

Publication number: CN211856855U
Application number: CN202020029940.4U
Authority: CN
Inventors: 还玉晶; 王莉; 乐昊; 郑士鹏
Original assignee: Yancheng Guotou Zhongke New Energy Technology Co ltd
Current assignee: Yancheng Guotou Zhongke New Energy Technology Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-11-03
Anticipated expiration: 2030-01-07

Abstract

The utility model provides a detection device for a battery management system collecting wire harness, which comprises a box body, wherein the box body is provided with an interface for connecting a collecting wire harness joint and an indicator lamp for displaying whether the collecting wire harness is correct or not; the interface comprises a positive terminal and a negative terminal, and the indicator light comprises a light-emitting diode LED1 and a light-emitting diode LED 2; be provided with detection circuitry on the pick-up plate, detection circuitry includes resistance R1, resistance R2, resistance R3, zener diode D1, triode Q1 and triode Q2, has convenient operation, labour saving and time saving, the accurate advantage of inspection.

Description

Detection apparatus for battery management system gathers pencil

Technical Field

The utility model belongs to the technical field of the battery management system, concretely relates to detection device of battery management system collection pencil.

Background

Inside the power battery box, the voltage of every section of monomer module all will be connected to BMS slave module through gathering the pencil physics, supplies BMS slave module to gather the voltage. Generally, the higher the voltage of the power battery is, the lower the output current is under the same power, and the overcurrent pressure of the connecting cable can be reduced. Therefore, the single modules of the power battery are dozens of or hundreds of strings, and the total voltage is hundreds of volts. Due to the limitation of the acquisition chip (analog front-end IC) of the BMS slave control module, for example, one acquisition chip supports at most 10 strings or 12 strings of voltage acquisition, one BMS slave control module has a plurality of acquisition chips corresponding to a plurality of acquisition interfaces to adapt to the acquisition of voltages of dozens of hundreds of strings of single modules.

The wiring harness of the acquisition interface must ensure correct wiring, otherwise any misconnection or misconnection can cause abnormal acquisition voltage of the BMS slave module, and even burn out the acquisition chip. The problem is that because of reasons such as difference, pencil trend, artificial factor that battery monomer module arranged, the pencil that leads to BMS to follow the accuse module collection interface connects wrong occasionally to take place, wastes financial resources, material resources and time. At present, the common method is that before the acquisition wiring harness is connected to the BMS slave control module, a multimeter voltage gear is used for checking whether the acquisition wiring harness is wrongly connected one by one, and the joint of the acquisition wiring harness is plugged into the BMS slave control module after no problem is detected. Although this method can achieve the purpose, it is time-consuming and labor-consuming, and is prone to error and repeated operation. Moreover, the probe head of the probe of the multimeter is relatively blunt, is difficult to contact with the terminal of the acquisition connector, and often needs to be tested repeatedly; in order to solve the above problems, a detection device for collecting the wire harness of the battery management system, which is simple and convenient to use and fast to detect, is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a detection device of battery management system collection pencil to whether gather the pencil in solving battery management system and have the testing process who connects the mistake, problem that traditional method wasted time and energy.

The utility model provides a following technical scheme:

a detection device for a battery management system to collect a wire harness comprises a box body, wherein an interface used for connecting a joint of the collection wire harness and an indicator lamp used for displaying whether the collection wire harness is correct are arranged on the box body; the interface comprises a positive terminal and a negative terminal, and the indicator light comprises a light emitting diode LED1 and a light emitting diode LED 2; the detection board is provided with a detection circuit, the detection circuit comprises a resistor R1, a resistor R2, a resistor R3, a voltage stabilizing diode D1, a triode Q1 and a triode Q2, and the resistor R1, the voltage stabilizing diode D1 and the light emitting diode LED1 are sequentially connected in series between the negative end and the base electrode of the triode Q1; the collector of the triode Q1 is connected with the base of the triode Q2, the connection position is connected to the negative end through the resistor R2, the resistor R3 and the light-emitting diode LED2 are sequentially connected in series between the negative end and the collector of the triode Q2, and the emitter of the triode Q1 and the emitter of the triode Q2 are both connected to the positive end.

Furthermore, the interface, the indicator light and the detection circuit are all provided with a plurality of groups, and each group of the interface, the indicator light and the detection circuit are correspondingly connected.

Further, the light emitting diode LED1 is red, and the light emitting diode LED2 is green.

Further, the resistance of the resistor R1 is 1K ohm, the resistance of the resistor R2 is 10K ohm, and the resistance of the resistor R3 is 1K ohm.

Furthermore, the box body comprises an upper cover and a base which are mutually buckled.

The utility model has the advantages that:

the utility model relates to a detection device of battery management system collection pencil realizes gathering the disposable detection of pencil, when gathering the kneck of pencil articulate on the box body, can accurately judge through the inspection circuit whether correct of collection pencil to through pilot lamp display result, effectively improved accuracy and the efficiency that the collection pencil detected.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of the detection circuit of the present invention;

FIG. 2 is a schematic view of the structure of the box body of the present invention;

labeled as: 1. the box body, 2, the interface, 3, the pilot lamp.

Detailed Description

As shown in fig. 2, a detection device for a battery management system to collect a wire harness comprises a box body 1, wherein an interface 2 for connecting a joint of the collection wire harness and an indicator lamp 3 for displaying whether the collection wire harness is correct are arranged on the box body 1, a detection board is arranged in the box body 1, and the interface 2 and the indicator lamp 3 are both connected to the detection board; the interface 2 comprises a positive terminal and a negative terminal, and the indicator light 3 comprises a light emitting diode LED1 and a light emitting diode LED 2; the box body 1 comprises an upper cover and a base which are mutually buckled.

As shown in fig. 1, a detection circuit is arranged on the detection board, the detection circuit includes a resistor R1, a resistor R2, a resistor R3, a zener diode D1, a triode Q1 and a triode Q2, and the resistor R1, the zener diode D1 and the light emitting diode LED1 are sequentially connected in series between the negative terminal and the base of the triode Q1; the collector of the triode Q1 is connected with the base of the triode Q2, the connection position is connected to the negative end through a resistor R2, the resistor R3 and the light emitting diode LED2 are sequentially connected in series between the negative end and the collector of the triode Q2, and the emitter of the triode Q1 and the emitter of the triode Q2 are both connected to the positive end. The LED1 is red and the LED2 is green. The resistance of the resistor R1 is 1K ohm, the resistance of the resistor R2 is 10K ohm, and the resistance of the resistor R3 is 1K ohm.

Interface 2, pilot lamp 3 and detection circuitry all are equipped with the multiunit, and every group interface 2, every group pilot lamp 3 and every group detection circuitry correspond continuously.

The working mode of the present embodiment is, as shown in fig. 1, a schematic diagram of single battery detection is shown, a collection harness of a battery management system is connected to an interface 2, at this time, when the battery is normally connected, only the positive electrode of one battery turns on a triode Q2 through a resistor R2, and then lights a light emitting diode LED2 green light through a resistor R3; when the batteries are connected incorrectly, two or more batteries are connected, the voltage directly exceeds the voltage stabilizing diode D1 through the resistor R1 and breaks down, and the light emitting diode LED1 is lighted to emit red light.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device for a battery management system to collect a wire harness comprises a box body, wherein an interface used for connecting a joint of the collection wire harness and an indicator lamp used for displaying whether the collection wire harness is correct are arranged on the box body; the interface comprises a positive terminal and a negative terminal, and the indicator light comprises a light emitting diode LED1 and a light emitting diode LED 2; the detection board is provided with a detection circuit, the detection circuit comprises a resistor R1, a resistor R2, a resistor R3, a voltage stabilizing diode D1, a triode Q1 and a triode Q2, and the resistor R1, the voltage stabilizing diode D1 and the light emitting diode LED1 are sequentially connected in series between the negative end and the base electrode of the triode Q1; the collector of the triode Q1 is connected with the base of the triode Q2, the connection position is connected to the negative end through the resistor R2, the resistor R3 and the light-emitting diode LED2 are sequentially connected in series between the negative end and the collector of the triode Q2, and the emitter of the triode Q1 and the emitter of the triode Q2 are both connected to the positive end.

2. The device as claimed in claim 1, wherein the interface, the indicator light and the detection circuit are provided with a plurality of sets, and each set of the interface, the indicator light and the detection circuit are correspondingly connected.

3. The device as claimed in claim 1, wherein the light emitting diode LED1 is red and the light emitting diode LED2 is green.

4. The device as claimed in claim 1, wherein the resistor R1 has a resistance of 1K ohm, the resistor R2 has a resistance of 10K ohm, and the resistor R3 has a resistance of 1K ohm.

5. The device as claimed in claim 1, wherein the box body comprises a top cover and a bottom base fastened to each other.