CN210957880U - Direct current charging control guide circuit of charging pile - Google Patents
Direct current charging control guide circuit of charging pile Download PDFInfo
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- CN210957880U CN210957880U CN201922393123.7U CN201922393123U CN210957880U CN 210957880 U CN210957880 U CN 210957880U CN 201922393123 U CN201922393123 U CN 201922393123U CN 210957880 U CN210957880 U CN 210957880U
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- 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
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Abstract
The utility model discloses a direct current charging control guide circuit of a charging pile, which relates to the technical field of charging pile control, and comprises a power supply U and a first connection confirmation interface CC1 connected with the anode of the power supply U through a charging end detection point D; a second connection confirmation interface CC2 connected to the positive electrode of the power supply U through the charging terminal detection point D; and a resistor R1 disposed between the negative pole of the power supply U and the charging terminal detection point D; an overvoltage protection circuit is arranged between the charging end detection point D and the first connection confirmation interface CC1 and the second connection confirmation interface CC 2. By adding the overvoltage protection circuit in front of the detection point of the direct-current charging control guide circuit at the charging equipment end (charging pile end), the damage to a power supply behind the detection point, components and chips in the detection circuit caused by the input of instantaneous high voltage such as lightning stroke, static electricity or surge voltage in thunderstorm weather from a charging gun can be effectively prevented.
Description
Technical Field
The utility model relates to a charge control technical field especially relates to a fill direct current charge control guide circuit of electric pile.
Background
With the consumption aggravation and pollution problem of the traditional energy sources, the popularization and application of new energy sources are advocated in the world; electric vehicles have become popular in more and more countries and regions as a new energy application form; as a charging device for providing electric power continuation for the electric automobile, the charging pile also appears in the visual field of people in a large number.
The direct current charging control guide circuit is used for confirming charging connection between the electric automobile and the charging pile in the charging process of the electric automobile through the charging pile, confirming the connection condition of the charging gun and the electric automobile through different voltage signals, and continuously judging the connection state in real time in the whole charging process, so that the connection reliability and the safe charging guarantee of the direct current quick charging interface of the electric automobile are realized.
The direct current of filling electric pile charges control guide circuit and all carries out the electricity through the rifle that charges and is connected with electric automobile, does not take any overvoltage protection measure among the current direct current control guide circuit that charges, if from the rifle input condition of high pressure in the twinkling of an eye (like thunder rainy day or static or surge voltage), leads to the power or detect components and parts damage among the direct current control guide circuit that charges very easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a fill direct current charge control guide circuit of electric pile, solved the defect that present direct current charge control guide circuit exists.
The purpose of the utility model is realized through the following technical scheme: a direct current charging control guide circuit of a charging pile comprises a power supply U, a first connection confirmation interface CC1 connected with the positive pole of the power supply U through a charging end detection point D; a second connection confirmation interface CC2 connected to the positive electrode of the power supply U through the charging terminal detection point D; and a resistor R1 disposed between the negative pole of the power supply U and the charging terminal detection point D;
an overvoltage protection circuit is arranged between the charging end detection point D and the first connection confirmation interface CC1 and the second connection confirmation interface CC 2.
Further, the overvoltage protection circuit comprises a MOS transistor Q1 and a triode Q2; the source electrode of the MOS tube is connected with the collector electrode of the triode Q2; the drain electrode of the MOS tube is grounded, and the grid electrode of the MOS tube is connected to the anode of the power supply U; the emitter of the transistor Q2 is grounded, and the base is connected to the positive pole of the power supply U.
Further, the overvoltage protection circuit also comprises a diode D3 and a resistor R2; the diode D3 is connected between the drain and the gate of the MOS transistor Q1 in a forward bias mode, and the resistor R2 is connected between the power supply U and the gate of the MOS transistor Q1.
Further, the overvoltage protection circuit further comprises a diode D1, a resistor R3 and a capacitor C1; the diode D1 is connected between the power supply U and the base of the triode Q2 in a forward bias mode; the resistor R3 and the capacitor C1 are connected in parallel and then connected between the base and the emitter of the triode Q2.
Further, the overvoltage protection circuit further includes a diode D2, and the diode D2 is connected to the ground terminal and the common connection terminal of the first connection confirmation interface CC1 and the second connection confirmation interface CC2 in a forward bias manner.
Furthermore, a ground wire pin G1 is led out from the ground wire of the charging equipment; the diode D2 is connected in a forward-biased manner to the ground pin G1 and to the common connection of the first connection confirmation interface CC1 and the second connection confirmation interface CC 2.
Further, the charging device also comprises a resistor R5 arranged between the positive pole of the power supply U and the charging terminal detection point D, and a switch S1 connected with the resistor R5 in parallel.
Further, the power supply further comprises a resistor R4 arranged between the positive electrode of the power supply U and the resistor R5.
Further, the power supply U is a low-voltage power supply.
Further, the diode is a breakdown diode.
The utility model has the advantages that: a direct current charging control guide circuit of a charging pile is characterized in that an overvoltage protection circuit is added in front of a detection point of the direct current charging control guide circuit at a charging equipment end (charging pile end), so that the damage to a power supply behind the detection point and components and chips in a detection circuit caused by instantaneous high voltage such as lightning stroke, static electricity or surge voltage in thunderstorm weather can be effectively prevented.
Drawings
Fig. 1 is a direct current charging control guide circuit of the charging pile of the utility model;
fig. 2 shows another embodiment of the dc charging control guidance circuit of the charging pile of the present invention;
in the figure, 1-overvoltage protection circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in fig. 1, a dc charging control guidance circuit for a charging pile includes a power source U, a first connection confirmation interface CC1 connected to the positive electrode of the power source U through a charging terminal detection point D; a second connection confirmation interface CC2 connected to the positive electrode of the power supply U through the charging terminal detection point D; and a resistor R1 disposed between the negative pole of the power supply U and the charging terminal detection point D;
an overvoltage protection circuit 1 is arranged between the charging terminal detection point D and the first connection confirmation interface CC1 and the second connection confirmation interface CC 2.
Further, the overvoltage protection circuit 1 comprises a MOS transistor Q1 and a transistor Q2; the source electrode of the MOS tube is connected with the collector electrode of the triode Q2; the drain electrode of the MOS tube is grounded, and the grid electrode of the MOS tube is connected to the anode of the power supply U; the emitter of the transistor Q2 is grounded, and the base is connected to the positive pole of the power supply U.
Further, the overvoltage protection circuit 1 further comprises a diode D3 and a resistor R2; the diode D3 is connected between the drain and the gate of the MOS transistor Q1 in a forward bias mode, and the resistor R2 is connected between the power supply U and the gate of the MOS transistor Q1.
Further, the overvoltage protection circuit 1 further comprises a diode D1, a resistor R3 and a capacitor C1; the diode D1 is connected between the power supply U and the base of the triode Q2 in a forward bias mode; the resistor R3 and the capacitor C1 are connected in parallel and then connected between the base and the emitter of the triode Q2.
Further, the overvoltage protection circuit 1 further includes a diode D2, and the diode D2 is connected to the ground terminal and the common connection terminal of the first connection confirmation interface CC1 and the second connection confirmation interface CC2 in a forward bias manner.
Furthermore, a ground wire pin G1 is led out from the ground wire of the charging equipment; the diode D2 is connected in a forward-biased manner to the ground pin G1 and to the common connection of the first connection confirmation interface CC1 and the second connection confirmation interface CC 2.
Specifically, the ground pin G1, the first connection confirmation interface CC1, and the second connection confirmation interface CC2 together constitute a charging gun circuit.
Further, as shown in fig. 2, the charging device further includes a resistor R5 disposed between the positive electrode of the power source U and the charging terminal detection point D, and a switch S1 connected in parallel to the resistor R5.
Further, the power supply further comprises a resistor R4 arranged between the positive electrode of the power supply U and the resistor R5.
Through connecting resistance R4 and resistance R5 between power U ' S positive pole and charging end check point D to with resistance R5 shunt switch S1, can be when filling electric pile and appearing unusually or the trouble in the charging process, through the disconnection of control switch S1, thereby make electric automobile end produce the voltage jump signal, through this voltage jump signal with fill electric pile ' S unusual or fault conditions transmit to electric automobile and fill in electric pile ' S controller.
Further, the power supply U is a low-voltage power supply.
Further, the diode is a breakdown diode.
Be connected with special detection circuitry (this detection circuitry can adopt the current circuit that has announced at present, consequently does not describe repeatedly in charging end check point D the utility model discloses in do not, when connecting to treat charging equipment (like electric automobile), interface CC1 is confirmed in the first connection of power U accessible and interface CC2 is confirmed to the second connection and DC charging control guide circuit power supply for treating charging equipment, can judge the connection status who fills electric pile and treat charging equipment (electric automobile) according to the different voltage value of the charging end check point D that detects and obtain.
If instantaneous high voltage is input into the direct current charging control guide circuit from the first connection confirmation interface CC1 and the second connection confirmation interface CC2, the input high voltage is guided into the ground terminal through the MOS tube Q1 and the triode Q2 in the overvoltage protection circuit, and the input high voltage is effectively prevented from damaging the low-voltage power supply U and components in the inspection circuit.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A direct current charging control guide circuit of a charging pile comprises a power supply U, a first connection confirmation interface CC1 connected with the positive pole of the power supply U through a charging end detection point D; a second connection confirmation interface CC2 connected to the positive electrode of the power supply U through the charging terminal detection point D; and a resistor R1 disposed between the negative pole of the power supply U and the charging terminal detection point D; the method is characterized in that:
an overvoltage protection circuit (1) is arranged between the charging end detection point D and the first connection confirmation interface CC1 and the second connection confirmation interface CC 2.
2. The direct-current charging control guidance circuit of the charging pile according to claim 1, characterized in that: the overvoltage protection circuit (1) comprises a MOS transistor Q1 and a triode Q2; the source electrode of the MOS tube is connected with the collector electrode of the triode Q2; the drain electrode of the MOS tube is grounded, and the grid electrode of the MOS tube is connected to the anode of the power supply U; the emitter of the transistor Q2 is grounded, and the base is connected to the positive pole of the power supply U.
3. The direct-current charging control guidance circuit of the charging pile according to claim 2, characterized in that: the overvoltage protection circuit (1) further comprises a diode D3 and a resistor R2; the diode D3 is connected between the drain and the gate of the MOS transistor Q1 in a forward bias mode, and the resistor R2 is connected between the power supply U and the gate of the MOS transistor Q1.
4. The direct-current charging control guidance circuit of the charging pile according to claim 2, characterized in that: the overvoltage protection circuit (1) further comprises a diode D1, a resistor R3 and a capacitor C1; the diode D1 is connected between the power supply U and the base of the triode Q2 in a forward bias mode; the resistor R3 and the capacitor C1 are connected in parallel and then connected between the base and the emitter of the triode Q2.
5. The direct-current charging control guidance circuit of the charging pile according to claim 2, characterized in that: the overvoltage protection circuit further comprises a diode D2, and a diode D2 is connected to the ground terminal and the common connection terminal of the first connection confirmation interface CC1 and the second connection confirmation interface CC2 in a forward bias manner.
6. The direct current charging control guidance circuit of the charging pile according to claim 5, characterized in that: a ground wire pin G1 is led out from a ground wire of the charging equipment; the diode D2 is connected in a forward-biased manner to the ground pin G1 and to the common connection of the first connection confirmation interface CC1 and the second connection confirmation interface CC 2.
7. The direct current charging control guidance circuit of the charging pile according to claim 3, characterized in that: the charging circuit also comprises a resistor R5 arranged between the positive pole of the power supply U and the charging terminal detection point D, and a switch S1 connected with the resistor R5 in parallel.
8. The direct current charging control guidance circuit of a charging pile according to claim 7, characterized in that: the circuit also comprises a resistor R4 arranged between the positive pole of the power supply U and the resistor R5.
9. The direct current charging control guidance circuit of the charging pile according to any one of claims 1 to 8, characterized in that: the power supply U is a low-voltage power supply.
10. The direct current charging control guidance circuit of the charging pile according to any one of claims 3 to 6, characterized in that: the diode is a breakdown diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922393123.7U CN210957880U (en) | 2019-12-26 | 2019-12-26 | Direct current charging control guide circuit of charging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922393123.7U CN210957880U (en) | 2019-12-26 | 2019-12-26 | Direct current charging control guide circuit of charging pile |
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| Publication Number | Publication Date |
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| CN210957880U true CN210957880U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922393123.7U Active CN210957880U (en) | 2019-12-26 | 2019-12-26 | Direct current charging control guide circuit of charging pile |
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| CN (1) | CN210957880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810475A (en) * | 2021-02-03 | 2021-05-18 | 阳光电源股份有限公司 | Charging gun interface equipment and charging pile control method |
-
2019
- 2019-12-26 CN CN201922393123.7U patent/CN210957880U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810475A (en) * | 2021-02-03 | 2021-05-18 | 阳光电源股份有限公司 | Charging gun interface equipment and charging pile control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A DC charging control pilot circuit for charging pile Effective date of registration: 20201224 Granted publication date: 20200707 Pledgee: Chongqing Branch of China Everbright Bank Co., Ltd Pledgor: CHONGQING GUOHAN ENERGY DEVELOPMENT Co.,Ltd. Registration number: Y2020500000027 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |