CN210212107U - Stable intelligent charger - Google Patents

Stable intelligent charger Download PDF

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Publication number
CN210212107U
CN210212107U CN201920695368.2U CN201920695368U CN210212107U CN 210212107 U CN210212107 U CN 210212107U CN 201920695368 U CN201920695368 U CN 201920695368U CN 210212107 U CN210212107 U CN 210212107U
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China
Prior art keywords
power supply
line
charging
direct current
bus
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CN201920695368.2U
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Chinese (zh)
Inventor
Yixue Sun
孙义学
Jian Ding
丁剑
Guofeng Qiao
乔国锋
Huaming Yuan
袁华明
Jiahu Huang
黄加虎
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SUZHOU INDUSTRIAL PARK HESHUN ELECTRICAL CO LTD
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SUZHOU INDUSTRIAL PARK HESHUN ELECTRICAL CO LTD
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model discloses a stable nature intelligent charging machine, including circuit breaker, power supply unit, direct current contactor, be used for connecting the positive terminal that charges of rifle and the negative pole end that charges, install an alternating current meter on A1 line, B1 line and the C1 line respectively, install a direct current meter on the negative pole bus between negative pole end and the direct current contactor charges, the cross-over has a control circuit between A1 line and the N1 line, and control circuit is according to the voltage and the current value that come from voltage sampling unit and current sampling unit, control power supply unit, it has a detection device still to cross-over connection between positive pole bus and the negative pole bus, detection device further includes the power, with relay, voltage sampling ware and the control unit of power series connection, the break-make of control relay is according to the voltage value that comes from voltage sampling ware. The utility model discloses the condenser of having avoided power module leads to the over-size and the condition of producing the trouble of impulse current with car battery is direct parallelly connected, has guaranteed the security and the stability of charging to the car.

Description

Stable intelligent charger
Technical Field
The utility model relates to an electric automobile charging device, in particular to stable form nature intelligent charging machine belongs to the electric automobile field of charging.
Background
The automobile industry is the second largest industry in the world, which is second to petrochemical industry, at present, most automobiles use gasoline and diesel oil as fuels, not only a large amount of petroleum resources are consumed, but also nitrogen oxides, hydrocarbons, carbon monoxide and the like contained in automobile exhaust cause serious pollution to the atmosphere. In order to maintain the sustainable development of national economy, protect human living environment and guarantee energy supply, governments of various countries in the world invest a great deal of manpower and material resources to find various ways for solving the problems.
Because the battery of the electric automobile is a voltage source, the charger is another voltage for charging the battery, and two different voltage sources are not directly connected together, so that the phenomenon of short circuit or overcurrent caused by different voltages is avoided.
Disclosure of Invention
The utility model aims at providing a stable form nature intelligent charging machine, this stable form nature intelligent charging machine have avoided power module's condenser and car battery direct parallelly connected lead to the impulse current too big and the condition of producing the trouble, have guaranteed the security and the stability of charging to the car.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a stable intelligent charger comprises a circuit breaker, a power supply device, a direct current contactor, a charging positive terminal and a charging negative terminal, wherein one end of the circuit breaker is connected to an A line, a B line, a C line and an N line of a power grid;
the power supply device comprises a plurality of power supply modules which are connected in parallel, wherein the positive output end of each power supply module is connected with a positive bus, the negative output end of each power supply module is connected with a negative bus, the power supply module further comprises an alternating current input module, a direct current output module and an AC/DC conversion module positioned between the alternating current input module and the direct current output module, the direct current output module is connected with a capacitor in parallel, and a reverse diode is connected between the positive end of the direct current output module and the positive bus;
an alternating current meter is respectively arranged on the line A1, the line B1 and the line C1, and a direct current meter is arranged on a negative electrode bus between the charging negative electrode end and the direct current contactor;
a control loop is connected between the A1 line and the N1 line in a crossing manner, the control loop is connected with a control end of the power supply device and is used for controlling the starting and stopping of the power supply device, the charging time sequence and the magnitude of voltage and current output by the power supply device, a voltage sampling unit and a current sampling unit are connected between the positive electrode bus and the negative electrode bus in a crossing manner, and the control loop controls the power supply device according to the voltage and current values from the voltage sampling unit and the current sampling unit;
the detection device is positioned between the power supply device and the direct current contactor and further comprises a power supply, a relay connected with the power supply in series, a voltage sampler and a control unit, the control unit is connected with the control end of the relay and used for controlling the on-off of the relay, the voltage sampler is used for collecting a voltage value between the positive bus and the negative bus, and the control unit controls the on-off of the relay according to the voltage value from the voltage sampler.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the number of the plurality of parallel power modules is 8.
2. In the above scheme, a fusible core is installed on the positive bus between the dc contactor and the charging positive terminal.
3. In the scheme, the alternating current meter is used for charging a power supply bureau.
4. In the scheme, the direct current meter is used for mainly metering the cost for the charging vehicle.
Because of the application of the technical scheme, compared with the prior art, the utility model have following advantage and effect:
1. the utility model discloses stable fixed type intelligent charger, it adopts the mode that a plurality of power modules connect in parallel as power supply unit, has realized the hierarchical adjustable of voltage when supplying power to be applicable to the car charging of different types; in addition, a reverse diode is connected between the positive end of the direct current output module and the positive bus, and the reverse diode can effectively prevent the generation of reverse charging or impact current and protect the circuit.
2. The utility model discloses stable type nature intelligent charging machine, its A1 line, B1 line and C1 line install an alternating current meter respectively, install a direct current meter on the negative pole bus between charging negative pole end and the direct current contactor, through the combination setting of alternating current meter and direct current meter, be used for respectively charging for the user car owner who supplies power bureau and use the machine that charges, guaranteed the precision and the accuracy that alternating current power supply end and direct current charging end charged respectively; in addition, a control loop is connected between the A1 line and the N1 line in a crossing manner, the control loop is connected with a control end of the power supply device and is used for controlling the starting and stopping of the power supply device, the charging time sequence and the magnitude of voltage and current output by the power supply device, a voltage sampling unit and a current sampling unit are connected between the positive electrode bus and the negative electrode bus in a crossing manner, the control loop controls the power supply device according to the voltage and current values from the voltage sampling unit and the current sampling unit, and the combination of the current sampling unit and the voltage sampling unit and the control loop is set, so that the control loop adjusts the control of the power supply device according to the current and voltage values sampled in real time, the dynamic monitoring in the charging process is ensured, and the charging safety, stability and charging precision are ensured.
3. The utility model discloses steady fixed nature intelligent charging machine, it has a detection device still to cross-over connection between its positive bus and the negative bus, and this detection device is located between power supply unit and the direct current contactor, detection device further includes the power, with relay, voltage sampler and the control unit of power series connection, the control unit is connected with the control end of relay for the break-make of control relay, voltage sampler is used for gathering the magnitude of voltage between positive bus and the negative bus, the control unit is according to the magnitude of voltage that comes from voltage sampler, the break-make of control relay, detection device's setting, when charging machine charges, carries out reverse charging and detects its voltage to this judges whether power supply unit's power module kind backward diode damages, if damage stops charging promptly and carries out troubleshooting, the condenser of having avoided power module leads to the impulse current too big and produces the trouble with the car battery is direct parallelly connected in parallel The safety and the stability of charging the automobile are ensured.
Drawings
FIG. 1 is a schematic structural diagram of the stable type intelligent charger of the utility model;
fig. 2 is the utility model discloses power supply unit schematic structure among stable design intelligent charging machine.
In the above drawings: 1. a circuit breaker; 2. a power supply device; 3. a DC contactor; 4. charging the positive terminal; 5. charging the negative terminal; 6. line A1; 7. line B1; 8. line C1; 9. a line N1; 10. a positive electrode bus; 11. a negative bus; 12. a power supply module; 101. an alternating current input module; 102. an AC/DC conversion module; 103. a DC output module; 104. a capacitor; 105. a reverse diode; 14. an alternating current meter; 15. a direct current meter; 18. a control loop; 19. a voltage sampling unit; 20. a current sampling unit; 21. a detection device; 22. a power source; 23. a relay; 24. a voltage sampler; 25. a control unit.
Detailed Description
The invention will be further described with reference to the following examples:
example 1: a stable intelligent charger comprises a circuit breaker 1, a power supply device 2, a direct current contactor 3, a charging positive terminal 4 and a charging negative terminal 5, wherein one end of the circuit breaker 1 is connected to an A line, a B line, a C line and an N line of a power grid, the charging positive terminal 4 and the charging negative terminal 5 are used for being connected with a charging gun, the other end of the circuit breaker 1 is correspondingly connected with an A1 line 6, a B1 line 7, a C1 line 8 and an N1 line 9, an alternating current input end of the power supply device 2 is connected to the A1 line 6, the B1 line 7 and the C1 line 8, a positive output end of the power supply device 2 is connected with the charging positive terminal 4 through a positive bus 10, a negative output end of the power supply device 2 is connected with the charging negative terminal 5 through a negative bus 11, and the positive bus 10 and;
the power supply device 2 comprises a plurality of power supply modules 12 connected in parallel, wherein the positive electrode output end of each power supply module 12 is connected with a positive electrode bus 10, the negative electrode output end of each power supply module 12 is connected with a negative electrode bus 11, the power supply module 12 further comprises an alternating current input module 101, a direct current output module 103 and an AC/DC conversion module 102 positioned between the alternating current input module 101 and the direct current output module 103, the direct current output module 103 is connected with a capacitor 104 in parallel, and a backward diode 105 is connected between the positive electrode end of the direct current output module 103 and the positive electrode bus 10;
an alternating current meter 14 is respectively arranged on the A1 line 6, the B1 line 7 and the C1 line 8, and a direct current meter 15 is arranged on the negative bus 11 between the charging negative terminal 5 and the direct current contactor 3;
a control loop 18 is connected between the a1 line 6 and the N1 line 9 in a crossing manner, the control loop 18 is connected with a control end of the power supply device 2 and is used for controlling the start-stop and charging time sequence of the power supply device 2 and the magnitude of the voltage and current output by the power supply device 2, a voltage sampling unit 19 and a current sampling unit 20 are connected between the positive electrode bus 10 and the negative electrode bus 11 in a crossing manner, and the control loop 18 controls the power supply device 2 according to the voltage and current values from the voltage sampling unit 19 and the current sampling unit 20;
a detection device 21 is further connected between the positive bus and the negative bus in a bridging manner, the detection device 21 is located between the power supply device 2 and the direct current contactor 3, the detection device 21 further comprises a power supply 22, a relay 23 connected with the power supply 22 in series, a voltage sampler 24 and a control unit 25, the control unit 25 is connected with a control end of the relay 23 and used for controlling the on-off of the relay 23, the voltage sampler 24 is used for collecting a voltage value between the positive bus 10 and the negative bus 11, and the control unit 25 controls the on-off of the relay 23 according to the voltage value from the voltage sampler 24.
The number of the power modules 12 connected in parallel is 8; a fusible core is mounted on the positive bus 10 between the dc contactor 3 and the positive charging terminal 4.
Example 2: a stable intelligent charger comprises a circuit breaker 1, a power supply device 2, a direct current contactor 3, a charging positive terminal 4 and a charging negative terminal 5, wherein one end of the circuit breaker 1 is connected to an A line, a B line, a C line and an N line of a power grid, the charging positive terminal 4 and the charging negative terminal 5 are used for being connected with a charging gun, the other end of the circuit breaker 1 is correspondingly connected with an A1 line 6, a B1 line 7, a C1 line 8 and an N1 line 9, an alternating current input end of the power supply device 2 is connected to the A1 line 6, the B1 line 7 and the C1 line 8, a positive output end of the power supply device 2 is connected with the charging positive terminal 4 through a positive bus 10, a negative output end of the power supply device 2 is connected with the charging negative terminal 5 through a negative bus 11, and the positive bus 10 and;
the power supply device 2 comprises a plurality of power supply modules 12 connected in parallel, wherein the positive electrode output end of each power supply module 12 is connected with a positive electrode bus 10, the negative electrode output end of each power supply module 12 is connected with a negative electrode bus 11, the power supply module 12 further comprises an alternating current input module 101, a direct current output module 103 and an AC/DC conversion module 102 positioned between the alternating current input module 101 and the direct current output module 103, the direct current output module 103 is connected with a capacitor 104 in parallel, and a backward diode 105 is connected between the positive electrode end of the direct current output module 103 and the positive electrode bus 10;
an alternating current meter 14 is respectively arranged on the A1 line 6, the B1 line 7 and the C1 line 8, and a direct current meter 15 is arranged on the negative bus 11 between the charging negative terminal 5 and the direct current contactor 3;
a control loop 18 is connected between the a1 line 6 and the N1 line 9 in a crossing manner, the control loop 18 is connected with a control end of the power supply device 2 and is used for controlling the start-stop and charging time sequence of the power supply device 2 and the magnitude of the voltage and current output by the power supply device 2, a voltage sampling unit 19 and a current sampling unit 20 are connected between the positive electrode bus 10 and the negative electrode bus 11 in a crossing manner, and the control loop 18 controls the power supply device 2 according to the voltage and current values from the voltage sampling unit 19 and the current sampling unit 20;
a detection device 21 is further connected between the positive bus and the negative bus in a bridging manner, the detection device 21 is located between the power supply device 2 and the direct current contactor 3, the detection device 21 further comprises a power supply 22, a relay 23 connected with the power supply 22 in series, a voltage sampler 24 and a control unit 25, the control unit 25 is connected with a control end of the relay 23 and used for controlling the on-off of the relay 23, the voltage sampler 24 is used for collecting a voltage value between the positive bus 10 and the negative bus 11, and the control unit 25 controls the on-off of the relay 23 according to the voltage value from the voltage sampler 24.
The ac meter 14 is used to charge the power supply bureau; the dc meter 15 is used to charge the charging vehicle.
When the stable type intelligent charger is adopted, the mode that a plurality of power modules are connected in parallel to form a power supply device is adopted, so that the grading adjustment of voltage during power supply is realized, and the stable type intelligent charger is suitable for charging different types of automobiles; in addition, the reverse diode can effectively prevent the generation of reverse charging or impact current and protect the circuit;
in addition, the combined arrangement of the alternating current meter and the direct current meter is respectively used for charging a power supply office and a user vehicle owner using a charger, so that the accuracy and the precision of respective charging of an alternating current power supply end and a direct current charging end are ensured; in addition, the current and voltage sampling units and the control loop are combined, so that the control loop adjusts the control of the power supply device according to the current and voltage values sampled in real time, and the dynamic monitoring in the charging process is ensured, thereby ensuring the charging safety, stability and charging precision;
in addition, the detection device is arranged to reversely charge the power supply device and detect the voltage of the power supply device when the charger charges, so that whether a reverse diode of a power supply module of the power supply device is damaged or not is judged, if the reverse diode is damaged, the charging is stopped for troubleshooting, the condition that the capacitor of the power supply module is directly connected with the automobile battery in parallel to cause overlarge impact current to cause fault is avoided, and the safety and the stability of automobile charging are ensured.
The working flow of the detection device is as follows:
when the charger is charged, the detection device enters a detection program, firstly, the control unit controls the relay to be closed, the power supply of the detection device charges a bus of the charger power supply device, meanwhile, the voltage sampler detects output voltage, when the voltage reaches a set voltage, the control unit controls the relay to be disconnected, at the moment, the voltage sampler detects bus voltage of a charger power supply module, if the bus voltage is more than half of the set voltage, the fact that a capacitor is reversely charged indicates that the reverse diode is damaged, and the fact that a system power supply module fails is prompted, otherwise, the system is normal and normal charging can be carried out.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (5)

1. The utility model provides a stable form nature intelligent charging machine which characterized in that: the charging device comprises a circuit breaker (1) with one end connected to an A line, a B line, a C line and an N line of a power grid, a power supply device (2), a direct current contactor (3), a charging positive end (4) used for being connected with a charging gun and a charging negative end (5), wherein the other end of the circuit breaker (1) is correspondingly connected with an A1 line (6), a B1 line (7), a C1 line (8) and an N1 line (9), the alternating current input end of the power supply device (2) is connected to the A1 line (6), the B1 line (7) and the C1 line (8), the positive output end of the power supply device (2) is connected with the charging positive end (4) through a positive bus (10), the negative output end of the power supply device (2) is connected with the charging negative end (5) through a negative bus (11), and the positive bus (10) and the negative bus (11) are both provided with the direct current contactor (3);
the power supply device (2) comprises a plurality of power supply modules (12) which are connected in parallel, the positive output end of each power supply module (12) is connected with a positive bus (10), the negative output end of each power supply module (12) is connected with a negative bus (11), each power supply module (12) further comprises an alternating current input module (101), a direct current output module (103) and an AC/DC conversion module (102) positioned between the alternating current input module (101) and the direct current output module (103), a capacitor (104) is connected in parallel on the direct current output module (103), and a reverse diode (105) is connected between the positive end of the direct current output module (103) and the positive bus (10);
an alternating current meter (14) is respectively arranged on the A1 line (6), the B1 line (7) and the C1 line (8), and a direct current meter (15) is arranged on a negative bus (11) between the charging negative end (5) and the direct current contactor (3);
a control loop (18) is connected between the A1 line (6) and the N1 line (9) in a crossing mode, the control loop (18) is connected with a control end of the power supply device (2) and used for controlling starting and stopping of the power supply device (2), charging time sequence and the magnitude of voltage and current output by the power supply device (2), a voltage sampling unit (19) and a current sampling unit (20) are connected between the positive electrode bus (10) and the negative electrode bus (11) in a crossing mode, and the control loop (18) controls the power supply device (2) according to the voltage and current values from the voltage sampling unit (19) and the current sampling unit (20);
the direct current contactor is characterized in that a detection device (21) is connected between the positive electrode bus and the negative electrode bus in a bridging mode, the detection device (21) is located between the power supply device (2) and the direct current contactor (3), the detection device (21) further comprises a power supply (22), a relay (23) connected with the power supply (22) in series, a voltage sampler (24) and a control unit (25), the control unit (25) is connected with a control end of the relay (23) and used for controlling the on-off of the relay (23), the voltage sampler (24) is used for collecting a voltage value between the positive electrode bus (10) and the negative electrode bus (11), and the control unit (25) controls the on-off of the relay (23) according to the voltage value from the voltage sampler (24).
2. The stable type intelligent charger according to claim 1, characterized in that: the number of the plurality of parallel power supply modules (12) is 8.
3. The stable type intelligent charger according to claim 1, characterized in that: and a fusible core is arranged on the positive bus (10) between the direct current contactor (3) and the charging positive terminal (4).
4. The stable type intelligent charger according to claim 1, characterized in that: the AC meter (14) is used to bill the power supply bureau.
5. The stable type intelligent charger according to claim 1, characterized in that: the direct current meter (15) is used for mainly metering the cost for the charging vehicle.
CN201920695368.2U 2019-05-15 2019-05-15 Stable intelligent charger Active CN210212107U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110481379A (en) * 2019-05-15 2019-11-22 苏州工业园区和顺电气股份有限公司 Stable type intelligent charging machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110481379A (en) * 2019-05-15 2019-11-22 苏州工业园区和顺电气股份有限公司 Stable type intelligent charging machine
CN110481379B (en) * 2019-05-15 2024-03-12 苏州工业园区和顺电气股份有限公司 Stable intelligent charger

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