CN105186613A - Charging circuit - Google Patents

Charging circuit Download PDF

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Publication number
CN105186613A
CN105186613A CN201510578981.2A CN201510578981A CN105186613A CN 105186613 A CN105186613 A CN 105186613A CN 201510578981 A CN201510578981 A CN 201510578981A CN 105186613 A CN105186613 A CN 105186613A
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CN
China
Prior art keywords
resistance
circuit
schottky diode
charging
relay
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
Application number
CN201510578981.2A
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Chinese (zh)
Inventor
郑坚江
山峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Sanxing Smart Electric Co Ltd
Original Assignee
Ningbo Dsky Intelligence Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo Dsky Intelligence Co Ltd filed Critical Ningbo Dsky Intelligence Co Ltd
Priority to CN201510578981.2A priority Critical patent/CN105186613A/en
Publication of CN105186613A publication Critical patent/CN105186613A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a charging circuit, comprising a power supply module and a charging control module, wherein the power supply module is electrically connected with the charging control module. The charging circuit further comprises a charging protection circuit which can be used for detecting an input side current of an electric vehicle charging circuit so as to control the charging circuit to supply power, wherein the charging protection circuit is electrically connected with the power supply module and the charging control module. The charging circuit can be used for detecting the input side current of the electric vehicle charging circuit.

Description

Charging circuit
Technical field
The present invention relates to the circuit charged in a kind of electric car charger, is specifically a kind of charging circuit.
Background technology
The charging circuit of prior art comprises power module and charge control module, and described power module is electrically connected with charge control module.The charging circuit of said structure has the following disadvantages in the use procedure of reality: detect the input side electric current of charging circuit for electric vehicles owing to lacking, therefore cannot judge the charged state of electric vehicle accumulator, thus damages storage battery.Therefore, for these reasons, a kind of charging circuit that can detect the input side electric current of charging circuit for electric vehicles is urgently needed, to solve the problem.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of charging circuit that can detect the input side electric current of charging circuit for electric vehicles.
Technical scheme of the present invention is, provides a kind of charging circuit, comprises power module and charge control module, and described power module is electrically connected with charge control module; Described charging circuit also comprises one can detect to control to the input side electric current of charging circuit for electric vehicles the charge protector that charging circuit powers, and described charge protector is all electrically connected with power module, charge control module.
Described charge protector comprises a control relay circuit, a break-make observation circuit and a current detection circuit; Described control relay circuit is connected with break-make observation circuit, current detection circuit respectively.
Described control relay circuit comprises electric capacity C1, resistance R1, R2, relay coil, Schottky diode VD1, relay-contactor K1 and triode V1; The positive source of described power module is connected with one end of electric capacity C1, the negative electrode of Schottky diode VD1, one end of relay coil; The other end of described electric capacity C1 is connected with common ground end; The anode of described Schottky diode VD1, the other end of relay coil are all connected with the c pole of triode V1; The b pole of described triode V1 is connected with one end of one end of resistance R1, resistance R2; The described other end of resistance R1 is connected with the output of charging control circuit; The e pole of described triode V1 is connected with the other end of resistance R2, common ground end; The Chang Kaiduan of described relay-contactor K1 is electrically connected with city.
Described break-make observation circuit comprises resistance R3, R4, R5, R6, R7, Schottky diode VD2 and photoelectrical coupler E1; One end of described resistance R3, one end of resistance R4 are electrically connected with city; The other end of described resistance R3, the other end of resistance R4 are all connected with the negative electrode of Schottky diode VD2, the input anode of photoelectrical coupler E1; The anode of described Schottky diode VD2, the input cathode of photoelectrical coupler E1 are all connected with one end of resistance R5, one end of resistance R6; The other end of described resistance R5, the other end of resistance R6 are all connected with the common port of relay-contactor K1; The output head anode of described photoelectrical coupler E1 is connected with one end of resistance R7, the input of charging control circuit, and the described other end of resistance R7 is connected with the positive source of power module; The negative pole of output end of described photoelectrical coupler E1 is connected with common ground end.
Described current detection circuit comprises a Current Transmit 1, resistance R8, R9, R10, Schottky diode VD3, VD4 and electric capacity C2, C3; The common port wire of relay-contactor K1 passes the iron core of Current Transmit 1; The positive pole of described Current Transmit 1 is connected with the anode of one end of resistance R8, Schottky diode VD4; One end of the negative electrode of described Schottky diode VD4 and the anode of Schottky diode VD3, electric capacity C3, one end of resistance R9, one end of resistance R10 are connected; The described negative electrode of Schottky diode VD3 is connected with the positive source of power module; The other end of described resistance R10 is connected with one end of electric capacity C2, the input of charging control circuit; The other end of the negative pole of described Current Transmit 1 and the other end of resistance R8, electric capacity C3, the other end of resistance R9, the other end of electric capacity C2, common ground end are connected.
After adopting above structure, the present invention compared with prior art, has the following advantages:
Charging circuit of the present invention is supplied to charge control module by power module, charge protector provides power supply; Come to control relay circuit control signal by the microprocessor in charge control module, and receive the signal of break-make observation circuit, current detection circuit, to obtain the sizes values of the input side electric current of charging circuit for electric vehicles, to judge the charged state of electric vehicle accumulator, thus ensure that storage battery can not damage.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of charging circuit of the present invention.
Fig. 2 is the circuit theory diagrams of power module.
Fig. 3 is the circuit theory diagrams of charge control module.
Fig. 4 is the circuit theory diagrams of charge protector.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of charging circuit of the present invention, comprise power module and charge control module, described power module is electrically connected with charge control module; Described charging circuit also comprises one can detect to control to the input side electric current of charging circuit for electric vehicles the charge protector that charging circuit powers, and described charge protector is all electrically connected with power module, charge control module.Wherein power module and charge control module are prior art, and it respectively as shown in Figure 2 and Figure 3.
Described charge protector comprises a control relay circuit, a break-make observation circuit and a current detection circuit; Described control relay circuit is connected with break-make observation circuit, current detection circuit respectively, respectively as shown in Figure 4.
Described control relay circuit comprises electric capacity C1, resistance R1, R2, relay coil, Schottky diode VD1, relay-contactor K1 and triode V1; The voltage of the positive source of power module is 5V; The positive source of described power module is connected with one end of electric capacity C1, the negative electrode of Schottky diode VD1, one end of relay coil; The other end of described electric capacity C1 is connected with common ground end; The anode of described Schottky diode VD1, the other end of relay coil are all connected with the c pole of triode V1; The b pole of described triode V1 is connected with one end of one end of resistance R1, resistance R2; The other end of described resistance R1 is connected with the output (RELAYON) of charging control circuit; The e pole of described triode V1 is connected with the other end of resistance R2, common ground end; The Chang Kaiduan of described relay-contactor K1 is electrically connected with city.
Described break-make observation circuit comprises resistance R3, R4, R5, R6, R7, Schottky diode VD2 and photoelectrical coupler E1; One end of described resistance R3, one end of resistance R4 are electrically connected with city; The other end of described resistance R3, the other end of resistance R4 are all connected with the negative electrode of Schottky diode VD2, the input anode of photoelectrical coupler E1; The anode of described Schottky diode VD2, the input cathode of photoelectrical coupler E1 are all connected with one end of resistance R5, one end of resistance R6; The other end of described resistance R5, the other end of resistance R6 are all connected with the common port of relay-contactor K1; The output head anode of described photoelectrical coupler E1 is connected with the input (OC) of one end of resistance R7, charging control circuit, and the described other end of resistance R7 is connected with the positive source of power module; The negative pole of output end of described photoelectrical coupler E1 is connected with common ground end.The output c pole of the output head anode of photoelectrical coupler E1, the negative pole of output end of photoelectrical coupler E1 i.e. photoelectrical coupler E1, the output e pole of photoelectrical coupler E1.
Described current detection circuit comprises a Current Transmit 1, resistance R8, R9, R10, Schottky diode VD3, VD4 and electric capacity C2, C3; The common port wire of relay-contactor K1 passes the iron core of Current Transmit 1; The positive pole of described Current Transmit 1 is connected with the anode of one end of resistance R8, Schottky diode VD4; One end of the negative electrode of described Schottky diode VD4 and the anode of Schottky diode VD3, electric capacity C3, one end of resistance R9, one end of resistance R10 are connected; The described negative electrode of Schottky diode VD3 is connected with the positive source of power module; The other end of described resistance R10 is connected with the input (ANA) of one end of electric capacity C2, charging control circuit; The other end of the negative pole of described Current Transmit 1 and the other end of resistance R8, electric capacity C3, the other end of resistance R9, the other end of electric capacity C2, common ground end are connected.
Below only just most preferred embodiment of the present invention is described, but can not be interpreted as it is limitations on claims.The present invention is not limited only to above embodiment, and its concrete structure allows to change.In every case the various change done in the protection range of independent claims of the present invention is all in protection scope of the present invention.

Claims (5)

1. a charging circuit, comprises power module and charge control module, and described power module is electrically connected with charge control module; It is characterized in that: described charging circuit also comprises one can detect to control to the input side electric current of charging circuit for electric vehicles the charge protector that charging circuit powers, and described charge protector is all electrically connected with power module, charge control module.
2. charging circuit according to claim 1, is characterized in that: described charge protector comprises a control relay circuit, a break-make observation circuit and a current detection circuit; Described control relay circuit is connected with break-make observation circuit, current detection circuit respectively.
3. charging circuit according to claim 2, is characterized in that: described control relay circuit comprises electric capacity C1, resistance R1, R2, relay coil, Schottky diode VD1, relay-contactor K1 and triode V1; The positive source of described power module is connected with one end of electric capacity C1, the negative electrode of Schottky diode VD1, one end of relay coil; The other end of described electric capacity C1 is connected with common ground end; The anode of described Schottky diode VD1, the other end of relay coil are all connected with the c pole of triode V1; The b pole of described triode V1 is connected with one end of one end of resistance R1, resistance R2; The described other end of resistance R1 is connected with the output of charging control circuit; The e pole of described triode V1 is connected with the other end of resistance R2, common ground end; The Chang Kaiduan of described relay-contactor K1 is electrically connected with city.
4. charging circuit according to claim 3, is characterized in that: described break-make observation circuit comprises resistance R3, R4, R5, R6, R7, Schottky diode VD2 and photoelectrical coupler E1; One end of described resistance R3, one end of resistance R4 are electrically connected with city; The other end of described resistance R3, the other end of resistance R4 are all connected with the negative electrode of Schottky diode VD2, the input anode of photoelectrical coupler E1; The anode of described Schottky diode VD2, the input cathode of photoelectrical coupler E1 are all connected with one end of resistance R5, one end of resistance R6; The other end of described resistance R5, the other end of resistance R6 are all connected with the common port of relay-contactor K1; The output head anode of described photoelectrical coupler E1 is connected with one end of resistance R7, the input of charging control circuit, and the described other end of resistance R7 is connected with the positive source of power module; The negative pole of output end of described photoelectrical coupler E1 is connected with common ground end.
5. charging circuit according to claim 4, is characterized in that: described current detection circuit comprises a Current Transmit 1, resistance R8, R9, R10, Schottky diode VD3, VD4 and electric capacity C2, C3; The common port wire of relay-contactor K1 passes the iron core of Current Transmit 1; The positive pole of described Current Transmit 1 is connected with the anode of one end of resistance R8, Schottky diode VD4; One end of the negative electrode of described Schottky diode VD4 and the anode of Schottky diode VD3, electric capacity C3, one end of resistance R9, one end of resistance R10 are connected; The described negative electrode of Schottky diode VD3 is connected with the positive source of power module; The other end of described resistance R10 is connected with one end of electric capacity C2, the input of charging control circuit; The other end of the negative pole of described Current Transmit 1 and the other end of resistance R8, electric capacity C3, the other end of resistance R9, the other end of electric capacity C2, common ground end are connected.
CN201510578981.2A 2015-09-11 2015-09-11 Charging circuit Pending CN105186613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510578981.2A CN105186613A (en) 2015-09-11 2015-09-11 Charging circuit

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Application Number Priority Date Filing Date Title
CN201510578981.2A CN105186613A (en) 2015-09-11 2015-09-11 Charging circuit

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CN105186613A true CN105186613A (en) 2015-12-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105488936A (en) * 2016-01-22 2016-04-13 格利尔数码科技股份有限公司 Perimeter intrusion detection and alarm device
CN107594777A (en) * 2017-08-28 2018-01-19 浙江工贸职业技术学院 A kind of TCM pulse diagnosis healthy bracelet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097841A (en) * 2010-12-31 2011-06-15 崧顺电子(深圳)有限公司 Battery charger
CN102130487A (en) * 2011-04-14 2011-07-20 上海埃士工业科技有限公司 Portable charger for electric vehicle and design method thereof
CN202275129U (en) * 2011-10-28 2012-06-13 武汉阿迪克电子有限公司 On/off detection circuit for relay of smart electricity meter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097841A (en) * 2010-12-31 2011-06-15 崧顺电子(深圳)有限公司 Battery charger
CN102130487A (en) * 2011-04-14 2011-07-20 上海埃士工业科技有限公司 Portable charger for electric vehicle and design method thereof
CN202275129U (en) * 2011-10-28 2012-06-13 武汉阿迪克电子有限公司 On/off detection circuit for relay of smart electricity meter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105488936A (en) * 2016-01-22 2016-04-13 格利尔数码科技股份有限公司 Perimeter intrusion detection and alarm device
CN107594777A (en) * 2017-08-28 2018-01-19 浙江工贸职业技术学院 A kind of TCM pulse diagnosis healthy bracelet
CN107594777B (en) * 2017-08-28 2019-02-22 浙江工贸职业技术学院 A kind of TCM pulse diagnosis healthy bracelet

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Effective date of registration: 20170405

Address after: 315034 Ningbo, Jiangbei District, Zhejiang City, the town of Maple Bay Road, No. 16

Applicant after: Ningbo Samsung intelligent electric company limited

Address before: 315131 Ningbo Province, Yinzhou District Province town of Jiang Ming Road, No. 1166, North Road, No.

Applicant before: NINGBO DSKY INTELLIGENCE CO., LTD.

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20151223