CN103647251B - A kind of vehicle power supply safety control device and control method - Google Patents
A kind of vehicle power supply safety control device and control method Download PDFInfo
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- CN103647251B CN103647251B CN201310599593.3A CN201310599593A CN103647251B CN 103647251 B CN103647251 B CN 103647251B CN 201310599593 A CN201310599593 A CN 201310599593A CN 103647251 B CN103647251 B CN 103647251B
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Abstract
A kind of vehicle power supply safety control device; including drain voltage protector, A.C. contactor and safety circuit plate; the drain voltage protector is connected between alternating current and the main normally opened contact of A.C. contactor; the drain voltage protector is also attached between alternating current and safety circuit plate; the coil of the A.C. contactor is connected between the main normally opened contact of A.C. contactor and safety circuit plate, the main normally opened contact other end connection load of the A.C. contactor；The invention also includes a kind of vehicle power supply security personnel's control methods.Install convenient of the present invention, it is securely and reliably, stable.
Description
Technical field
The present invention relates to power supply security personnel's control fields, more particularly to a kind of power supply security personnel's control dress of the vehicles such as communication van
It sets and control method.
Background technology
Communication van power supply wall box is equipped with the power-off protection functions such as overvoltage, drain voltage, and existing method is in power supply security personnel's electricity
Road plate detects overvoltage or when drain voltage signal, and relay is connected in security board, by the zero curve of earth leakage protective device input terminal and defeated
The firewire of outlet is connected by a resistance, and the artificial leakage current signal for manufacturing earth leakage protective device drives master switch trip protection,
However the problems such as this method has such as security board power supply circuit failure, overvoltage occurs, drain voltage protector does not trip.
Invention content
The technical problem to be solved by the present invention is to overcome drawbacks described above of the existing technology, provide a kind of install just
Victory, securely and reliably, stable vehicle power supply safety control device and control method.
Technical solution is used by the vehicle power supply safety control device of the present invention solves its technical problem：It is a kind of vehicle-mounted
Power supply safety control device, including drain voltage protector, A.C. contactor and safety circuit plate, the drain voltage protector connection
Between alternating current and the main normally opened contact of A.C. contactor, the drain voltage protector be also attached to alternating current and safety circuit plate it
Between, the coil of the A.C. contactor is connected between the main normally opened contact of A.C. contactor and safety circuit plate, the exchange
The main normally opened contact other end connection load of contactor.
Further, the safety circuit plate includes mainboard and debugging board, the mainboard include microprocessor and with micro- place
Manage power supply module, Zenith tracking module, overcurrent detection module, drain voltage detection module, the leakage current test mould of device connection
Block, debugging board interface module, alarm module, signal designation module and relay switch.
Further, the power supply module includes transformer and voltage stabilizing chip.
Further, the firewire of drain voltage protector one end connects alternating current with zero curve, and the firewire and zero curve of the other end connect
The primary of the transformer is connect, the secondary of the transformer connects the input terminal of the voltage stabilizing chip.
Further, the firewire of output end one end connection drain voltage protector of the relay switch, other end connection are handed over
Flow coil one end of contactor, the zero curve of the main normally opened contact of the coil other end connection A.C. contactor of A.C. contactor.
Further, the firewire of output end one end connection drain voltage protector of the relay switch, other end connection are handed over
Flow coil one end of contactor, the zero curve of the main normally opened contact of the coil other end connection A.C. contactor of A.C. contactor.
Further, the debugging board interface module of the debugging board connection mainboard, carries out overvoltage/undervoltage, overcurrent connects to mainboard
Ground is bad, drain voltage, the setting and debugging of leakage current.
Further, the signal designation module is signal lamp.
Technical solution is used by vehicle power supply security personnel's control method of the present invention solves its technical problem：It is a kind of vehicle-mounted
Power supply security personnel's control method, includes the following steps：
1）By power supply module to microprocessor, Zenith tracking module, overcurrent detection module, drain voltage detection module,
Leakage current test module, debugging board interface module, alarm module, signal designation module and relay switch provide power supply；
2）It is real-time by Zenith tracking module, overcurrent detection module, drain voltage detection module, leakage current test module
Detect the overvoltage of mobile unit power supply or drain voltage situation；
3）By button, the overvoltage of mobile unit power supply and drain voltage threshold value are set；
4）Microprocessor acquires current Zenith tracking module, overcurrent detection module, drain voltage detection module, leakage in real time
Current detection module output signal, and cut off immediately with threshold value comparison when finding the overvoltage of mobile unit power supply or drain voltage situation
Mobile unit power supply, alarm module alarm, plays the role of security personnel；
5）After mobile unit power good, when microprocessor detects that current line is normal, turn on automatically ac contactor
Device, power supply to the device, alarm module stop alarm.
Further, drain voltage protector can also disconnect automatically when leak current fault occurs for equipment, be carried for mobile unit power supply
For double protection functions.
Further, the drain voltage protector is used for protection circuit or electrical equipment when leak current fault occurs for mobile unit
Overload and short circuit, can also be used as the infrequently starting switch of circuit；
The Zenith tracking module for detecting into electric line voltage in real time；
The overcurrent detection module for detecting into electric line electric current in real time；
The drain voltage detection module for detecting current line electrical leakage voltage in real time；
The leakage current test module for detecting current line leakage current in real time；
The A.C. contactor is connected for being switched on or switched off alternating current with load；
The relay switch is used to control the coil break-make of A.C. contactor, and when relay switch is closed, exchange connects
The coil of tentaculum is powered, and the main normally opened contact of A.C. contactor is closed, and alternating current is connected with load.Otherwise the master of A.C. contactor is normal
Contact disconnection is opened, alternating current is disconnected with load；
The microprocessor by read in real time Zenith tracking module, overcurrent detection module, drain voltage detection module,
Leakage current test module output signal, and break immediately when detecting that overvoltage or drain voltage phenomenon occurs in circuit with threshold value comparison
Open relay switchs；
The alarm module is used for after microprocessor detects that overvoltage or drain voltage occurs in circuit, alarm user.
The present invention has following features compared with prior art：
1. using A.C. contactor as overvoltage, the performer of drain voltage signal protection, the electricity with drain voltage protector
Flow pattern earth leakage protective separates, and signal designation is clear, is convenient for signal Analysis source.
2. the coil of A.C. contactor is controlled by safety circuit plate, under the premise of safety circuit plate works normally, mainboard
It could power, more securely and reliably.
Description of the drawings
Fig. 1 is circuit diagram of the present invention.
Fig. 2 is mainboard block diagram of the present invention.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, present invention is further described in detail.
Embodiment 1
Referring to Figures 1 and 2, the present embodiment includes drain voltage protector QF, A.C. contactor KM and safety circuit plate；Security personnel
Circuit board includes mainboard PBA1 and debugging board PBA2, and mainboard PBA1 includes microprocessor P1 and the confession that is connect with microprocessor P1
Electric module P2, Zenith tracking 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；Power supply module P1 includes transformation
Device T and voltage stabilizing chip；The firewire L and zero curve N of the one end drain voltage protector QF connect alternating current, and the firewire L and zero curve N of the other end connect
1 end of primary and 2 ends of transformer T are connect, 3 end of secondary of transformer T connects the input terminal W1 and W2 of voltage stabilizing chip with 4 ends；In addition,
The firewire L and zero curve N of the one end drain voltage protector QF connect alternating current, and the firewire L of the other end connects A.C. contactor KM with zero curve N
1 end of main normally opened contact and 3 ends, 2 end of main normally opened contact of A.C. contactor KM connects load with 4 ends；Relay switch P10's
The loop A 2 of firewire L, the W6 connection A.C. contactor KM of output end W5 connection drain voltage protectors QF, the line of A.C. contactor KM
Enclose the zero curve N of the main normally opened contact of A1 connection A.C. contactors KM, i.e., 3 ends of main normally opened contact.
The debugging board interface module P7 of debugging board PBA2 connection mainboards PBA1 carries out overvoltage/undervoltage to mainboard PBA1, overcurrent,
Imperfect earth, drain voltage, the setting and debugging of leakage current.
Signal designation module P9 is signal lamp HA, is used for signal designation, is convenient for signal Analysis source.
After accessing alternating current, power supply is after drain voltage protector QF, the input terminal W1 and W2 of the voltage stabilizing chip of mainboard PBA1
It is electric after be converted into the operating voltage of mainboard PBA1, the output end W5 of the relay switch P10 in safety circuit plate is connected with W6
Output signal makes the loop A 1 of A.C. contactor KM and A2 obtains electric actuation, and main normally opened contact is connected, out-put supply.Work as mainboard
When PBA1 detects overvoltage or drain voltage signal, the output end W5 and W6 of the relay switch P10 in mainboard PBA1 are disconnected, and make friendship
The loop A 1 and the release of A2 dead electricity, main normally opened contact for flowing contactor KM disconnect protection, and output of cutting off the power realizes power supply
Security personnel's control.
Embodiment 2
A kind of vehicle power supply security personnel control method, includes the following steps：
1）By power supply module P2 to microprocessor P1, Zenith tracking 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 refer to
Show that module P9 and relay switch P10 provide power supply；
2）Pass through Zenith tracking module P3, overcurrent detection module P4, drain voltage detection module P5, leakage current test mould
Block P6 detects the overvoltage of mobile unit power supply or drain voltage situation in real time；
3）By button, the overvoltage of mobile unit power supply and drain voltage threshold value are set；
4）Microprocessor P1 acquires current Zenith tracking module P3, overcurrent detection module P4, drain voltage detection in real time
Module P5, leakage current test module P6 output signals, and and threshold value comparison, when the overvoltage of discovery mobile unit power supply or drain voltage feelings
Condition, cuts off mobile unit power supply immediately, and security personnel are played the role of in alarm module P8 alarms；
5）After mobile unit power good, when microprocessor P1 detects that current line is normal, turn on automatically exchange connects
Tentaculum KM, power supply to the device, alarm module P8 stop alarms.
Drain voltage protector QF can also be disconnected automatically when leak current fault occurs for equipment, be provided for mobile unit power supply dual
Defencive function.
Drain voltage protector QF be used for mobile unit occur leak current fault when protection circuit or electrical equipment overload and
Short circuit can also be used as the infrequently starting switch of circuit；
Zenith tracking module P3 for detecting into electric line voltage in real time；
Overcurrent detection module P4 for detecting into electric line electric current in real time；
Drain voltage detection module P5 for detecting current line electrical leakage voltage in real time；
Leakage current test module P6 for detecting current line leakage current in real time；
A.C. contactor KM is connected for being switched on or switched off alternating current with load；
Relay switch P10 is used to control the coil break-make of A.C. contactor KM, when relay switch P10 is closed, hands over
The coil for flowing contactor KM is powered, and the main normally opened contact of A.C. contactor KM is closed, and alternating current is connected with load.Otherwise ac contactor
The main normally opened contact of device KM disconnects, and alternating current is disconnected with load；
Microprocessor P1 detects mould by reading Zenith tracking module P3, overcurrent detection module P4, drain voltage in real time
Block P5, leakage current test module P6 output signals, and and threshold value comparison, when detect circuit occur overvoltage or drain voltage phenomenon
When, relay switch P10 immediately；
Alarm module P8 is used for after microprocessor P1 detects that overvoltage or drain voltage occurs in circuit, alarm user.
Claims (9)
1. a kind of vehicle power supply safety control device, which is characterized in that including drain voltage protector, A.C. contactor and security personnel's electricity
Road plate, the drain voltage protector are connected between alternating current and the main normally opened contact of A.C. contactor, the drain voltage protector
It is also attached between alternating current and safety circuit plate, the coil of the A.C. contactor is connected to the main normally opened contact of A.C. contactor
Between safety circuit plate, the main normally opened contact other end connection load of the A.C. contactor；
The safety circuit plate includes mainboard and debugging board, and the mainboard includes microprocessor and the confession that is connect with microprocessor
Electric module, Zenith tracking module, overcurrent detection module, drain voltage detection module, leakage current test module, debugging plate interface
Module, alarm module, signal designation module and relay switch；
The microprocessor for acquire in real time current Zenith tracking module, overcurrent detection module, drain voltage detection module,
Leakage current test module output signal, and cut immediately with threshold value comparison when finding the overvoltage of mobile unit power supply or drain voltage situation
Disconnected mobile unit power supply, alarm module alarm, plays the role of security personnel；And it is used for after mobile unit power good, microprocessor
When detecting that current line is normal, turn on automatically A.C. contactor, power supply to the device, alarm module stop alarm.
2. the vehicle power supply safety control device as described in claim 1, which is characterized in that the power supply module includes transformation
Device and voltage stabilizing chip.
3. the vehicle power supply safety control device as described in claim 2, which is characterized in that drain voltage protector one end
Firewire alternating current is connected with zero curve, the firewire of the other end connects the primary of the transformer, the secondary of the transformer with zero curve
Connect the input terminal of the voltage stabilizing chip.
4. vehicle power supply safety control device as claimed in claim 1 or 2, which is characterized in that the relay switch it is defeated
Outlet one end connects the firewire of drain voltage protector, and the other end connects coil one end of A.C. contactor, the line of A.C. contactor
Enclose the zero curve of the main normally opened contact of other end connection A.C. contactor.
5. the vehicle power supply safety control device as described in claim 3, which is characterized in that the output of the relay switch
The firewire of one end connection drain voltage protector, the other end is held to connect coil one end of A.C. contactor, the coil of A.C. contactor
The other end connects the zero curve of the main normally opened contact of A.C. contactor.
6. vehicle power supply safety control device as claimed in claim 1 or 2, which is characterized in that the debugging board connects mainboard
Debugging board interface module, to mainboard carry out overvoltage/undervoltage, overcurrent, imperfect earth, drain voltage, the setting and debugging of leakage current.
7. vehicle power supply safety control device as claimed in claim 1 or 2, which is characterized in that the signal designation module is
Signal lamp.
The control method 8. a kind of vehicle power supply is ensured public security, which is characterized in that include the following steps：
1）By power supply module to microprocessor, Zenith tracking module, overcurrent detection module, drain voltage detection module, electric leakage
It flows detection module, debugging board interface module, alarm module, signal designation module and relay switch and power supply is provided；
2）It is detected in real time by Zenith tracking module, overcurrent detection module, drain voltage detection module, leakage current test module
The overvoltage of mobile unit power supply or drain voltage situation；
3）By button, the overvoltage of mobile unit power supply and drain voltage threshold value are set；
4）Microprocessor acquires current Zenith tracking module, overcurrent detection module, drain voltage detection module, leakage current in real time
Detection module output signal, and cut off immediately vehicle-mounted with threshold value comparison when finding the overvoltage of mobile unit power supply or drain voltage situation
Equipment power supply, alarm module alarm, plays the role of security personnel；
5）After mobile unit power good, when microprocessor detects that current line is normal, turn on automatically A.C. contactor is given
Equipment is powered, alarm module stop alarm.
The control method 9. vehicle power supply as described in claim 8 is ensured public security, which is characterized in that drain voltage protector is sent out in equipment
It can also be disconnected automatically when raw leak current fault, double protection functions are provided for mobile unit power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599593.3A CN103647251B (en) | 2013-11-25 | 2013-11-25 | A kind of vehicle power supply safety control device and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599593.3A CN103647251B (en) | 2013-11-25 | 2013-11-25 | A kind of vehicle power supply safety control device and control method |
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| Publication Number | Publication Date |
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| CN103647251A CN103647251A (en) | 2014-03-19 |
| CN103647251B true CN103647251B (en) | 2018-11-09 |
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| CN201310599593.3A Active CN103647251B (en) | 2013-11-25 | 2013-11-25 | A kind of vehicle power supply safety control device and control method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909891A (en) * | 2020-10-15 | 2021-06-04 | 广东骉马机器人科技有限公司 | Leakage protection system and method |
| CN114447891A (en) * | 2020-11-05 | 2022-05-06 | 深圳市法马新智能设备有限公司 | Leakage protection device and method for alternating current equipment |
| CN112968506A (en) * | 2021-04-09 | 2021-06-15 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Direct current residual current protection device for charging and battery replacing equipment |
| CN114465200A (en) * | 2022-02-10 | 2022-05-10 | 徐州徐工汽车制造有限公司 | Vehicle-mounted leakage protector, vehicle and vehicle-mounted leakage protection method |
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| CN202102075U (en) * | 2011-06-10 | 2012-01-04 | 衡阳泰豪通信车辆有限公司 | Numerically-controlled power supply security board |
| CN202872701U (en) * | 2012-10-09 | 2013-04-10 | 湖南吉利汽车部件有限公司 | Control device for three-phase alternating-current motors |
| CN203251136U (en) * | 2013-04-16 | 2013-10-23 | 重庆南方迪马专用车股份有限公司 | Vehicle-mounted integrated power supply |
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| CN103647251A (en) | 2014-03-19 |
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Effective date of registration: 20190411 Address after: 421000 No. 46 Furong Road, Hengyang High-tech Zone, Hunan Province Co-patentee after: Beijing mechanical and electrical engineering general design department Patentee after: Hengyang Tellhow Communications Voiture Co., Ltd. Address before: 421001 No. 46 Furong Road, Hengyang High-tech Industrial Development Zone, Hunan Province Patentee before: Hengyang Tellhow Communications Voiture Co., Ltd. |