CN203574349U - Vehicle power supply security control device - Google Patents
Vehicle power supply security control device Download PDFInfo
- Publication number
- CN203574349U CN203574349U CN201320748024.6U CN201320748024U CN203574349U CN 203574349 U CN203574349 U CN 203574349U CN 201320748024 U CN201320748024 U CN 201320748024U CN 203574349 U CN203574349 U CN 203574349U
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- China
- Prior art keywords
- contactor
- control device
- drain voltage
- vehicle power
- module
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Abstract
Disclosed is a vehicle power supply security control device. The vehicle power supply security control device comprises a drain voltage protector, an alternating current contactor, and a security circuit board, the drain voltage protector is connected between an electric supply and a main normally open contact of the alternating current contactor, the drain voltage protector is also connected between the electric supply and the security circuit board, a coil of the alternating current contactor is connected between the main normally open contact of the alternating current contactor and the security circuit board, and the other terminal of the main normally open contact of the alternating current contactor is connected with a load. The vehicle power supply security control device is advantaged by convenient installation, safety, reliability, and stable operation.
Description
Technical field
The utility model relates to power supply security personnel control field, particularly relates to the power supply safety control device of the vehicles such as a kind of communication van.
Background technology
Communication van power supply wall box is provided with the power-off protection functions such as overvoltage, drain voltage; existing method is when power supply safety circuit plate detects overvoltage or drain voltage signal; in security board, relay is connected; the live wire of the zero line of earth leakage protective device input and output is connected by a resistance; the artificial leakage current signal of manufacturing earth leakage protective device; drive master switch trip protection, but there is for example security board power supply circuits fault in the method, occurs the problems such as overvoltage, drain voltage protector do not trip.
Utility model content
Technical problem to be solved in the utility model is, overcomes the above-mentioned defect that prior art exists, and a kind of convenient, safe and reliable, stable vehicle power safety control device of installing is provided.
The utility model solves the technical scheme that its technical problem adopts: a kind of vehicle power safety control device; comprise drain voltage protector, A.C. contactor and safety circuit plate; described drain voltage protector is connected between the main normally opened contact of civil power and A.C. contactor; described drain voltage protector is also connected between civil power and safety circuit plate; the coil of described A.C. contactor is connected between the main normally opened contact and safety circuit plate of A.C. contactor, and the main normally opened contact other end of described A.C. contactor connects load.
Further, described safety circuit plate comprises mainboard and debugging board, supply module, overvoltage detection module, overcurrent detection module, drain voltage detection module, leakage current test module, debugging board interface module, alarm module, signal designation module and relay switch that described mainboard comprises microprocessor and is connected with microprocessor.
Further, described supply module comprises transformer and voltage stabilizing chip.
Further, the live wire of described drain voltage protector one end is connected civil power with zero line, and the live wire of the other end is connected the elementary of described transformer with zero line, the input of the described voltage stabilizing chip of secondary connection of described transformer.
Further, output one end of described relay switch connects the live wire of drain voltage protector, and the other end connects coil one end of A.C. contactor, and the coil other end of A.C. contactor connects the zero line of the main normally opened contact of A.C. contactor.
Further, output one end of described relay switch connects the live wire of drain voltage protector, and the other end connects coil one end of A.C. contactor, and the coil other end of A.C. contactor connects the zero line of the main normally opened contact of A.C. contactor.
Further, described debugging board connects the debugging board interface module of mainboard, mainboard is carried out to overvoltage/undervoltage, overcurrent, imperfect earth, drain voltage, the setting of leakage current and debugging.
Further, described signal designation module is signal lamp.
The utility model compared with prior art has following features:
1. adopt the performer of A.C. contactor as overvoltage, drain voltage signal protection, separate with the current mode earth leakage protective of drain voltage protector, signal designation is clear, is convenient to analytic signal source.
2. the coil of A.C. contactor is controlled by safety circuit plate, and under the prerequisite of the normal work of safety circuit plate, mainboard could be powered, more safe and reliable.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is mainboard block diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, circuit theory of the present utility model is further described.
See figures.1.and.2, the present embodiment comprises drain voltage protector QF, A.C. contactor KM and safety circuit plate; Safety circuit plate comprises mainboard PBA1 and debugging board PBA2, supply module P2, overvoltage detection module P3, overcurrent detection module P4, drain voltage detection module P5, leakage current test module P6, debugging board interface module P7, alarm module P8, signal designation module P9 and relay switch P10 that mainboard PBA1 comprises microprocessor P1 and is connected with microprocessor P1; Supply module P1 comprises transformer T and voltage stabilizing chip; The live wire L of drain voltage protector QF one end is connected civil power with zero line N, elementary 1 end and 2 ends of the live wire L of the other end and zero line N connection transformer T, and secondary 3 ends of transformer T are connected input W1 and the W2 of voltage stabilizing chip with 4 ends; In addition, the live wire L of drain voltage protector QF one end is connected civil power with zero line N, and the live wire L of the other end is connected main normally opened contact 1 end and 3 ends of A.C. contactor KM with zero line N, and main normally opened contact 2 ends of A.C. contactor KM are connected load with 4 ends; The output W5 of relay switch P10 connects the live wire L of drain voltage protector QF, and W6 connects the loop A 2 of A.C. contactor KM, and the loop A 1 of A.C. contactor KM connects the zero line N of the main normally opened contact of A.C. contactor KM, i.e. 3 ends of main normally opened contact.
Debugging board PBA2 connects the debugging board interface module P7 of mainboard PBA1, mainboard PBA1 is carried out to overvoltage/undervoltage, overcurrent, imperfect earth, drain voltage, the setting of leakage current and debugging.
Signal designation module P9 is signal lamp HA, for signal designation, is convenient to analytic signal source.
After access civil power; power supply is after drain voltage protector QF; the input W1 of the voltage stabilizing chip of mainboard PBA1 and W2 obtain the operating voltage that converts mainboard PBA1 after electric to; the output W5 of relay switch P10 in safety circuit plate and W6 connect output signal makes the loop A 1 of A.C. contactor KM and A2 obtain electric adhesive; its main normally opened contact is connected, out-put supply.When mainboard PBA1 detects overvoltage or drain voltage signal; the output W5 of relay switch P10 in mainboard PBA1 and W6 disconnect, and the loop A 1 of A.C. contactor KM and A2 dead electricity are discharged, and its main normally opened contact disconnects protection; the output of cutting off the electricity supply, the security personnel that realized power supply control.
Claims (8)
1. a vehicle power safety control device; it is characterized in that; comprise drain voltage protector, A.C. contactor and safety circuit plate; described drain voltage protector is connected between the main normally opened contact of civil power and A.C. contactor; described drain voltage protector is also connected between civil power and safety circuit plate; the coil of described A.C. contactor is connected between the main normally opened contact and safety circuit plate of A.C. contactor, and the main normally opened contact other end of described A.C. contactor connects load.
2. vehicle power safety control device as claimed in claim 1, it is characterized in that, described safety circuit plate comprises mainboard and debugging board, supply module, overvoltage detection module, overcurrent detection module, drain voltage detection module, leakage current test module, debugging board interface module, alarm module, signal designation module and relay switch that described mainboard comprises microprocessor and is connected with microprocessor.
3. vehicle power safety control device as claimed in claim 2, is characterized in that, described supply module comprises transformer and voltage stabilizing chip.
4. vehicle power safety control device as claimed in claim 3; it is characterized in that; the live wire of described drain voltage protector one end is connected civil power with zero line, and the live wire of the other end is connected the elementary of described transformer with zero line, the input of the described voltage stabilizing chip of secondary connection of described transformer.
5. vehicle power safety control device as claimed in claim 2 or claim 3; it is characterized in that; output one end of described relay switch connects the live wire of drain voltage protector; the other end connects coil one end of A.C. contactor, and the coil other end of A.C. contactor connects the zero line of the main normally opened contact of A.C. contactor.
6. vehicle power safety control device as claimed in claim 4; it is characterized in that; output one end of described relay switch connects the live wire of drain voltage protector; the other end connects coil one end of A.C. contactor, and the coil other end of A.C. contactor connects the zero line of the main normally opened contact of A.C. contactor.
7. vehicle power safety control device as claimed in claim 2 or claim 3, is characterized in that, described debugging board connects the debugging board interface module of mainboard, mainboard is carried out to overvoltage/undervoltage, overcurrent, imperfect earth, drain voltage, the setting of leakage current and debugging.
8. vehicle power safety control device as claimed in claim 2 or claim 3, is characterized in that, described signal designation module is signal lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320748024.6U CN203574349U (en) | 2013-11-25 | 2013-11-25 | Vehicle power supply security control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320748024.6U CN203574349U (en) | 2013-11-25 | 2013-11-25 | Vehicle power supply security control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203574349U true CN203574349U (en) | 2014-04-30 |
Family
ID=50542062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320748024.6U Expired - Fee Related CN203574349U (en) | 2013-11-25 | 2013-11-25 | Vehicle power supply security control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203574349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647251A (en) * | 2013-11-25 | 2014-03-19 | 衡阳泰豪通信车辆有限公司 | A vehicle-mounted power supply security control apparatus and a control method |
-
2013
- 2013-11-25 CN CN201320748024.6U patent/CN203574349U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647251A (en) * | 2013-11-25 | 2014-03-19 | 衡阳泰豪通信车辆有限公司 | A vehicle-mounted power supply security control apparatus and a control method |
| CN103647251B (en) * | 2013-11-25 | 2018-11-09 | 衡阳泰豪通信车辆有限公司 | A kind of vehicle power supply safety control device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140430 Termination date: 20191125 |