CN106410746A - A-type electric leakage circuit protector suitable for new energy automobile charging box - Google Patents
A-type electric leakage circuit protector suitable for new energy automobile charging box Download PDFInfo
- Publication number
- CN106410746A CN106410746A CN201610371537.8A CN201610371537A CN106410746A CN 106410746 A CN106410746 A CN 106410746A CN 201610371537 A CN201610371537 A CN 201610371537A CN 106410746 A CN106410746 A CN 106410746A
- Authority
- CN
- China
- Prior art keywords
- electric leakage
- unit
- type
- converter
- type electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001012 protector Effects 0.000 title abstract 5
- 230000005611 electricity Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- H02J7/027—
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to an A-type electric leakage circuit protector suitable for a new energy automobile charging box, including a working part, a power supplying part and an A-type electric leakage mutual inductor. The working part is powered by the power supplying part. The A-type electric leakage mutual inductor is connected with the working part and the power supplying part. The working part comprises a data acquisition unit, a control guiding unit, a protection action unit and an execution driving unit. The data acquisition unit can receives an electric leakage signal in a line, and sends the electric leakage signal to the control guiding unit connected to the data acquisition unit. The control guiding unit carries out determination after receiving the electric leakage signal, and sends an instruction to the protection action unit connected to the control guiding unit according to a determination result. The protection action unit breaks the execution driving unit to achieve no output of alternating current if receiving an instruction corresponding to electric leakage. The beneficial effects are that the protector is suitable for detecting A-type and AC-type electric leakage signals; the protector has a good EMC protection capability; the protector is good in consistency of precision in detection of electric leakage signals of various types; and the detection is isolated, and the insulation level is high.
Description
Technical field
The present invention relates to circuit protection device field, particularly to a kind of circuit protection device of the A type electric leakage being applied to new-energy automobile charging box.
Background technology
Currently, the leakage circuit protection device in new-energy automobile charging box generally individually adopts AC type.The circuit protection device of the type is difficult to detection pulsation, slowly varying leakage current（A type leaks electricity）, or control box powers the line electrical leakage of itself, so that new-energy automobile charging box still suffers from the potential safety hazard leaked electricity.
Content of the invention
The technical problem to be solved is：There is provided a kind of leakage circuit protection device being used in new-energy automobile charging box, it is applied to detection A type and AC type electric leakage signal.
For solving above-mentioned technical problem, the present invention provides：A kind of circuit protection device of the A type electric leakage being applied to new-energy automobile charging box, including work department, power supply and A type creepage mutual inductor.
Work department to be powered by power supply.
A type creepage mutual inductor is connected with work department and power supply respectively.
Work department includes data acquisition unit, controls guidance unit, protection act unit and execution driver element.
Data acquisition unit can electric leakage signal in receiving circuit, and send electric leakage signal to the control guidance unit being connected.
Control guidance unit after receiving electric leakage signal, judged, and according to judged result, send instruction to the protection act unit being connected.
If protection act unit receives and corresponding instruction of leaking electricity, will be switched off executing driver element, so that alternating current is no exported.
In the technical scheme optimizing further, work department includes man-machine interface, [11].
In the technical scheme optimizing further, power supply includes EMC wave filter, AC/DC converter and DC/DC converter.
EMC wave filter is connected with AC/DC converter.
AC/DC converter is connected with DC/DC converter, and is connected with controlling guidance unit, protection act unit and man-machine interface respectively.
DC/DC converter is connected with controlling guidance unit, protection act unit and man-machine interface respectively.
In the technical scheme optimizing further, alternating current passes through A type creepage mutual inductor, respectively input execution driver element and EMC wave filter.
After employing technique scheme, the invention has the beneficial effects as follows：
With respect to existing technical scheme, the circuit protection device being originally applied to the A type electric leakage of new-energy automobile charging box adopts high-performance earth leakage protective device application-specific integrated circuit（Integrated circuit）It is adaptable to detection A type and AC type electric leakage signal；There is good EMC（Electromagnetic interference）Protective capacities；Detect that all types of electric leakage signal precision uniformity are good；Isolation detection, the class of insulation is high.
Brief description
Fig. 1 applies to the circuit protection device structure chart of the A type electric leakage of new-energy automobile charging box
Fig. 2 applies to the circuit protection device circuit diagram of the A type electric leakage of new-energy automobile charging box
Specific embodiment
Below in conjunction with the accompanying drawings 1 and 2 and specific embodiment describe the present invention, but not as a limitation of the invention.
Embodiment one
As shown in Figure 1, a kind of circuit protection device of the A type electric leakage being applied to new-energy automobile charging box, includes work department 1, power supply 2 and A type creepage mutual inductor 3.
Work department 1 to be powered by power supply 2.
A type creepage mutual inductor 3 is connected with work department 1 and power supply 2 respectively, and specially alternating current passes through A type creepage mutual inductor 3, respectively input execution driver element 14 and EMC wave filter 21.
Work department 1 includes data acquisition unit 11, controls guidance unit 12, protection act unit 13, execution driver element 14 and man-machine interface 15.
Data acquisition unit 11 can electric leakage signal in receiving circuit, and send electric leakage signal to the control guidance unit 12 being connected.
Control guidance unit 12 after receiving electric leakage signal, judged, and according to judged result, send instruction to the protection act unit 13 being connected.
If protection act unit 13 receives and corresponding instruction of leaking electricity, will be switched off executing driver element 14, so that alternating current is no exported.
Man-machine interface 15 ... [s2]
Embodiment two
On the basis of above-described embodiment, as shown in Figure 1, power supply 2 includes EMC wave filter 21, AC/DC converter 22 and DC/DC converter 23.
EMC wave filter 21 is connected with AC/DC converter 22.
AC/DC converter 22 is connected with DC/DC converter 22, and is connected with controlling guidance unit 12, protection act unit 13 and man-machine interface 15 respectively.
DC/DC converter 23 is connected with controlling guidance unit 12, protection act unit 13 and man-machine interface 15 respectively.
Embodiment three
On the basis of above-described embodiment, as shown in figure 1 and 2, the implementation of the circuit protection device of A type electric leakage can be：Exchange input, through A type creepage mutual inductor 3, accesses the power input of charging box.Power input has 1 common node, and one end to AC/DC converter 22, provides the power supply of system after EMC wave filter 21 process；The other end connects to the relay common of execution driver element 14.
When there is leak current fault; electric leakage signal is sent into and controls guidance unit 12 to carry out software judgement by data acquisition unit 11; guidance unit 12 is controlled to instruct to sending protection act unit 13, protection act unit 13 disconnects execution driver element 14 according to instruction, so that exchange is no exported.
As shown in Figure 2, the current signal detecting is formed a voltage signal at R48 two ends in the secondary side of A type creepage mutual inductor 3 after D33 clamper, C54 filtering by data acquisition unit 11.Then, the second level RC ∏ shape filter network through R46, R54, C17 composition sends into U4 amplifier in.U4 cooperation peripheral components C25, C26, C21, R58, R57, D25 input signal is carried out differential amplification, Voltage Cortrol, precision rectifying, phase place judge, latch count, level conversion process after, export a triggering level signal.
So, output loading side and the control box charging box line electrical leakage of itself just can be detected according to the circuit protection device of electric leakage signal this A type electric leakage simultaneously.
As known by the technical knowledge, the technical program can be realized by the embodiment of other essence without departing from its spirit or essential feature.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only.All all it is included in the invention within the scope of the present invention or in the change being equal in the scope of the present invention.
Claims (4)
1. a kind of circuit protection device of the A type electric leakage being applied to new-energy automobile charging box it is characterised in that：Including work department（1）, power supply（2）With A type creepage mutual inductor（3）；
Described work department（1）By power supply（2）To be powered；
A type creepage mutual inductor（3）Respectively with work department（1）And power supply（2）It is connected；
Described work department（1）Including data acquisition unit（11）, control guidance unit（12）, protection act unit（13）With execution driver element（14）；
Described data acquisition unit（11）Can electric leakage signal in receiving circuit, and to the control guidance unit being connected（12）Send electric leakage signal；
Described control guidance unit（12）After receiving electric leakage signal, judged, and according to judged result, to the protection act unit being connected（13）Send instruction；
Described protection act unit（13）If receiving and corresponding instruction of leaking electricity, will be switched off executing driver element（14）.
2. A type according to claim 1 electric leakage circuit protection device it is characterised in that：Described work department（1）Including man-machine interface（15）, [A1].
3. A type according to claim 2 electric leakage circuit protection device it is characterised in that：Described power supply（2）Including EMC wave filter（21）, AC/DC converter（22）With DC/DC converter（23）；
Described EMC wave filter（21）With AC/DC converter（22）It is connected；
Described AC/DC converter（22）With DC/DC converter（22）Be connected, and respectively with control guidance unit（12）, protection act unit（13）And man-machine interface（5）It is connected；
Described DC/DC converter（23）Respectively with control guidance unit（12）, protection act unit（13）And man-machine interface（5）It is connected.
4. A type according to claim 3 electric leakage circuit protection device it is characterised in that：Described alternating current passes through A type creepage mutual inductor（3）, input execution driver element respectively（14）With EMC wave filter（21）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371537.8A CN106410746A (en) | 2016-05-31 | 2016-05-31 | A-type electric leakage circuit protector suitable for new energy automobile charging box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371537.8A CN106410746A (en) | 2016-05-31 | 2016-05-31 | A-type electric leakage circuit protector suitable for new energy automobile charging box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106410746A true CN106410746A (en) | 2017-02-15 |
Family
ID=58005443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610371537.8A Pending CN106410746A (en) | 2016-05-31 | 2016-05-31 | A-type electric leakage circuit protector suitable for new energy automobile charging box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106410746A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030070147A1 (en) * | 2001-10-01 | 2003-04-10 | International Business Machines Corporation | Dual threshold gate array or standard cell power saving library circuits |
| CN102130440A (en) * | 2011-03-22 | 2011-07-20 | 浙江大学 | Special integrated circuit chip for A type electric leakage protector |
| CN203180545U (en) * | 2013-04-09 | 2013-09-04 | 许继集团有限公司 | Energy storage deflector for liquid flow battery |
| CN104300494A (en) * | 2014-09-23 | 2015-01-21 | 浙江大学 | A-type leakage protector allowing leakage tripping current values to stay same |
| CN204789719U (en) * | 2015-07-02 | 2015-11-18 | 国网天津市电力公司 | Air switch with measurement function |
| CN204790431U (en) * | 2015-07-02 | 2015-11-18 | 国网天津市电力公司 | Fuse communication technology's intelligent control type circuit breaker |
| CN205123230U (en) * | 2015-11-19 | 2016-03-30 | 南京大全电气研究院有限公司 | A type residual current circuit breaker based on microcontroller |
-
2016
- 2016-05-31 CN CN201610371537.8A patent/CN106410746A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030070147A1 (en) * | 2001-10-01 | 2003-04-10 | International Business Machines Corporation | Dual threshold gate array or standard cell power saving library circuits |
| CN102130440A (en) * | 2011-03-22 | 2011-07-20 | 浙江大学 | Special integrated circuit chip for A type electric leakage protector |
| CN203180545U (en) * | 2013-04-09 | 2013-09-04 | 许继集团有限公司 | Energy storage deflector for liquid flow battery |
| CN104300494A (en) * | 2014-09-23 | 2015-01-21 | 浙江大学 | A-type leakage protector allowing leakage tripping current values to stay same |
| CN204789719U (en) * | 2015-07-02 | 2015-11-18 | 国网天津市电力公司 | Air switch with measurement function |
| CN204790431U (en) * | 2015-07-02 | 2015-11-18 | 国网天津市电力公司 | Fuse communication technology's intelligent control type circuit breaker |
| CN205123230U (en) * | 2015-11-19 | 2016-03-30 | 南京大全电气研究院有限公司 | A type residual current circuit breaker based on microcontroller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11198374B2 (en) | Device and method for charging electric vehicle | |
| CN102545193B (en) | Method and device for discharging residual voltage of bus of servo controller | |
| CN108565839A (en) | A kind of IGBT drive circuit and electric machine controller of electric machine controller | |
| CN105814771A (en) | Charger | |
| CN104124769B (en) | Wireless power supply source control system and method | |
| KR20150118407A (en) | Slow charge method and on-board charger for environmentally-friendly vehicle | |
| CN104215810B (en) | A kind of electric car conduction formula charging pilot detection circuit and system | |
| CN103616870B (en) | Remote control's electric water heater fault diagnosis system | |
| CN102991374B (en) | A kind of passive rectification protection system of electric vehicle motor controller | |
| CN106410746A (en) | A-type electric leakage circuit protector suitable for new energy automobile charging box | |
| CN202495738U (en) | Undervoltage protection circuit | |
| CN108539835B (en) | AC-DC battery charging device | |
| CN206684219U (en) | A kind of frequency converter and its voltage detecting circuit | |
| CN206135391U (en) | Circuit protection device of electric leakage suitable for new energy automobile box that charges | |
| CN206307911U (en) | Electric power system is filled on a kind of small tonnage autocrane of charged handoff functionality | |
| CN113047370B (en) | Electric control system, method and device for working machine and working machine | |
| CN206041866U (en) | Controller of motor compressor | |
| CN104578744A (en) | Load stepped-starting circuit and corresponding leakage protector | |
| CN104253417B (en) | Zero cross signal produces and synchronous communication circuit, method and home appliance | |
| CN106253790A (en) | A kind of controller of motor compressor | |
| CN203062056U (en) | Over-voltage under-voltage detection-protection circuit of inverter welding machine | |
| CN203027127U (en) | Isolation type voltage sag protection device for direct current load | |
| CN205427112U (en) | Online fault location system of power continuous lines is maked somebody a mere figurehead to railway based on active signal | |
| CN204290290U (en) | A kind of motor driver circuit detected with controllable silicon | |
| CN204361755U (en) | One sends on electric control charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |