CN212872784U - High-voltage box relay circuit detection device - Google Patents
High-voltage box relay circuit detection device Download PDFInfo
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- CN212872784U CN212872784U CN202021420119.1U CN202021420119U CN212872784U CN 212872784 U CN212872784 U CN 212872784U CN 202021420119 U CN202021420119 U CN 202021420119U CN 212872784 U CN212872784 U CN 212872784U
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Abstract
A high-voltage box relay circuit detection device relates to the technical field of lithium batteries. The detection device comprises a circuit board, a light emitting diode, connectors, a driver switch, a probe and a power switch, wherein the bottom of the driver is connected with an external power supply, one end of the side surface of the driver is connected with the probe, the other end of the driver is connected with two rubber shell connectors, and the driver is provided with a plurality of switches in the front and can detect a plurality of relays simultaneously. The high-voltage box is connected with the connector through the rubber shell connector, an external power supply is connected, the high-voltage box is in a state to be detected at the moment, the probe is connected with a relay in the high-voltage box to be measured, the corresponding switch in the driver is opened, and under the detection state, if the light-emitting diode lamp is on, the switch is turned off, then the light-emitting diode lamp is turned off, the relay circuit function is normal, if the light-emitting diode keeps on, then the relay circuit function is abnormal. The detection device is low in cost, convenient to carry, simple to operate and strong in practicability.
Description
Technical Field
The utility model relates to a high-voltage box relay circuit detection device belongs to lithium cell technical field.
Background
Lithium batteries have become the primary batteries for portable electronic products. Such batteries have a high capacity density and a competitive price, and are expected to remain the mainstream of the market in the coming years. Because of its excellent cycle performance, fast charge and discharge, high charging efficiency up to 100%, and large output power. The service life is long. Contains no toxic and harmful substances, and is called green battery. The voltage of a power battery of the pure electric vehicle manufactured by the lithium battery is more than 200-400V, and the high-voltage electric appliances such as a motor controller, an air conditioning system, a DC/DC system and a charging system for the whole vehicle can cause disorder of a power battery wire harness if being directly connected with the power battery, so that the cost is increased, the space of the whole vehicle is occupied, and the potential safety hazard of the whole vehicle is increased. Therefore, the electric automobile needs to be added with a high-voltage distribution box to perform high-voltage distribution on the power battery.
The high-voltage box is relatively expensive, and internal parts such as a fuse, a relay, a current sensor, a pre-charging resistor, a copper bar and the like are sequentially arranged in the high-voltage box body. The connection of each device in the box body is realized in a mode of connecting the wire harnesses, so that the wire harnesses are mixed and disordered, and the high-voltage box cannot be disassembled easily. The relay is used as a key component of the high-voltage box, and in a new energy electric vehicle high-voltage system using a lithium battery as a power battery, the relay needs to be frequently switched off with load, so that the relay is easily adhered. Once the relay is adhered, higher voltage can be generated, and the safety of automobile parts and personnel in the automobile is threatened, even spontaneous combustion is realized. The high-voltage box often needs to be disassembled in the prior art, time and labor are wasted, the number of wire harnesses in the high-voltage box is large, and a large amount of manpower and material resources are wasted in the installation process after the test.
Disclosure of Invention
In order to solve the problem, an object of the utility model is to provide a high-pressure box relay circuit detection device, will the high-pressure box through glue the shell connector with detection device links to each other, the switch-on the driver power is in this moment and waits to detect the state, will the probe with need to measure relay in the high-pressure box links to each other, opens the correspondence switch in the driver, under the detection state, if the emitting diode lamp is bright, closes behind the switch, the emitting diode lamp goes out, then relay circuit function is normal, if emitting diode keeps the lamp bright, then relay circuit function is abnormal. The detection device is low in cost, convenient to carry, simple to operate and strong in practicability.
In order to achieve the above purpose, the utility model adopts the following technical scheme: high-voltage box relay circuit detection device includes circuit board, emitting diode, connector, driver switch, probe, switch, the driver bottom sets up switch and links to each other with external power supply, and side one end is connected the probe, the other end is connected the connector, the driver openly is provided with a plurality ofly the driver switch can detect a plurality of relays simultaneously. The high-voltage box is connected with the connector through a rubber shell connector, the power switch is turned on, the high-voltage box is in a state to be detected at the moment, the probe is connected with the relay to be measured, the corresponding driver switch is turned on, at the moment, under the detection state, if the light-emitting diode lamp is on, the driver switch is turned off, the light-emitting diode lamp is turned off, the relay circuit is detected normally, and if the light-emitting diode lamp is kept on, the relay circuit is detected abnormally.
Further, the power switch is connected with a power supply at 12V.
Furthermore, the number of the light-emitting diodes is 3-4, each row is 3, the light-emitting diodes can be replaced at any time, and all the internal circuits of the light-emitting diodes in the circuit board are connected.
Further, the number of the driver switches is 3-5.
Further, the probes correspond to the driver switches one to one.
The invention adopts the structure to obtain the beneficial effects that: the high-voltage box relay circuit detection device avoids disassembling the high-voltage box in the process of detecting the relay. The external power supply voltage of the detection device is 12V, the power consumption safety is high, the structure is simple and practical, whether the circuit is normal or not is indicated by the light-emitting diode, the plurality of switches and the probes are arranged, the detection of the plurality of relays can be carried out at one time, and the detection efficiency is greatly improved. The device uses raw and other materials low cost, and whole device conveniently carries, easy operation, and is practical strong.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The device comprises a circuit board 1, a circuit board 2, a light emitting diode 3, a connector 4, a driver 5, a driver switch 6, a probe 7, a power switch 8, an external power supply 9, a spiral fixing base 10, a high-voltage box 11 and a relay external interface.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the following embodiments, and the technical features or the connection relations of the present invention, which are not described in detail, are the prior art adopted.
The present invention will be described in further detail with reference to fig. 1.
The utility model discloses a high-pressure box relay circuit detection device, including circuit board 1, emitting diode 2, connector 3, driver 4, driver switch 5, probe 6, switch 7, 4 bottoms of driver set up switch 7 and link to each other with external power supply 8, and side one end is connected probe 6, the other end is connected connector 3, driver 4 openly is provided with a plurality ofly driver switch 5 can detect a plurality of relays simultaneously. Will high-voltage box 10 through glue shell connector with connector 3 links to each other, opens switch 7 is in the state of waiting to detect this moment, will probe 6 with need to measure relay 11 links to each other, opens the correspondence driver switch 5, at this moment, under the detection state, if emitting diode 2 lamps are bright, close behind driver switch 5, emitting diode 2 lamps go out, then the detection relay 11 circuit function is normal, if emitting diode 2 keeps the lamp bright, then the detection relay 11 circuit function is abnormal.
The power switch 7 is 12V for the external power supply 8.
The light-emitting diodes 2 are arranged in 3-4 rows, each row is 3, the light-emitting diodes can be replaced at any time, and all internal circuits of the light-emitting diodes 2 in the circuit board 1 are connected.
The driver switches 5 are provided in 3 to 5 numbers.
The probes 6 correspond one-to-one to the driver switches 5.
The LEDs 2 are arranged in a plurality of groups and can be replaced at any time, so that the detection accuracy is ensured.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. A high-voltage box relay circuit detection device is characterized by comprising a circuit board (1), a light-emitting diode (2), a connector (3), a driver (4), a driver switch (5), a probe (6) and a power switch (7);
the bottom of the driver (4) is provided with a power switch (7) and is connected with an external power supply (8), one end of the side surface of the driver is connected with the probe (6), the other end of the side surface of the driver is connected with the connector (3), and the front surface of the driver (4) is provided with a plurality of driver switches (5) which can detect a plurality of relays simultaneously; the high-voltage box (10) is connected with the connector (3) through a rubber shell connector;
open switch (7), be in the state of waiting to detect this moment, will probe (6) with need to measure relay (11) link to each other, open the correspondence driver switch (5), at this moment, under the detection state, if emitting diode (2) lamp is bright, close behind driver switch (5), emitting diode (2) lamp goes out, then detects relay (11) circuit function is normal, if emitting diode (2) keep the lamp bright, then detect relay (11) circuit function is unusual.
2. The high voltage box relay circuit testing apparatus of claim 1, wherein: the power switch (7) is externally connected with a power supply (8) and is 12V.
3. The high voltage box relay circuit testing apparatus of claim 1, wherein: the LED (2) is provided with 3-4 rows of 3 LEDs, each row can be replaced at any time, and all internal circuits of the LEDs (2) in the circuit board (1) are connected.
4. The high voltage box relay circuit testing apparatus of claim 1, wherein: the number of the driver switches (5) is 3-5.
5. The high voltage box relay circuit testing apparatus of claim 1, wherein: the probes (6) correspond to the driver switches (5) one to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021420119.1U CN212872784U (en) | 2020-07-19 | 2020-07-19 | High-voltage box relay circuit detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021420119.1U CN212872784U (en) | 2020-07-19 | 2020-07-19 | High-voltage box relay circuit detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212872784U true CN212872784U (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021420119.1U Active CN212872784U (en) | 2020-07-19 | 2020-07-19 | High-voltage box relay circuit detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212872784U (en) |
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2020
- 2020-07-19 CN CN202021420119.1U patent/CN212872784U/en active Active
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