CN212422847U - Alternating-current charging pile - Google Patents
Alternating-current charging pile Download PDFInfo
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- CN212422847U CN212422847U CN202020960366.4U CN202020960366U CN212422847U CN 212422847 U CN212422847 U CN 212422847U CN 202020960366 U CN202020960366 U CN 202020960366U CN 212422847 U CN212422847 U CN 212422847U
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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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- 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
- Y02T90/14—Plug-in electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This scheme relates to an alternating-current charging stake can realize that a stake of charging charges to a plurality of vehicles. It includes: a plurality of guns that charge, power supply control device and be used for being connected and the multiunit control guide circuit of parallelly connected setting with a plurality of guns that charge one-to-ones, each group control guide circuit all includes: the device comprises a first contactor, a second contactor, a CC signal connection confirming circuit and a CP signal detection circuit; each CP signal detection circuit is provided with a first detection point for the vehicle-mounted control device to carry out voltage detection; when any group of control guidance circuits is connected with the equipment to be charged, the power supply control device is used for: when the voltage of the first detection point is 9V, controlling a first switch in the corresponding CP signal detection circuit to be switched from a +12V connection state to a PWM connection state, and outputting a PWM signal containing a PWM duty ratio value, wherein the PWM duty ratio value is obtained by dividing the total number of the devices to be charged; and when the voltage of the first detection point is 6V, controlling the corresponding first contactor and second contactor to be closed.
Description
Technical Field
The utility model belongs to the alternating-current charging field, concretely relates to alternating-current charging stake.
Background
Pure electric technology is mature gradually at present, and new energy automobile has realized popularizing and applying, and some users have the demand of purchasing the pure electric vehicle of second, if the unable dilatation of available load capacity that the user applied for in earlier stage, and available capacity can only satisfy a pure electric vehicle full power demand of charging, if the user purchases a pure electric vehicle again, because of the restriction of circuit load capacity, will unable two cars of realization charge simultaneously. Therefore, the alternating-current charging pile with the power distribution function and the double guns is designed, when only one vehicle is charged, high-power (rated power) output charging can be achieved, when two vehicles are charged simultaneously, low-power (1/2 rated power) output charging of the two vehicles can be achieved simultaneously and respectively, and the effect of being crucial to improvement of charging convenience of electric automobiles is achieved.
SUMMERY OF THE UTILITY MODEL
The utility model provides an alternating-current charging stake for realize that one fills electric pile and charges to a plurality of vehicles.
The technical scheme of the utility model is that:
the utility model provides an alternating-current charging stake, include: a plurality of guns that charge, power supply control device and be used for the multiunit control guide circuit who is connected with a plurality of guns one-to-one that charge, multiunit control guide circuit sets up in parallel, each group control guide circuit all includes:
the first contactor is connected with a live wire of the alternating-current charging pile, the second contactor is connected with a zero line of the alternating-current charging pile, and the first contactor and the second contactor are connected with the power supply control device; the CC signal connection confirmation circuit is connected with a ground wire of the alternating current charging pile, and the CP signal detection circuit is connected with the power supply control device; the CP signal detection circuit in each group of control guidance circuits is provided with a first detection point for voltage detection of the power supply control device;
when any one group of control guidance circuits is connected with the equipment to be charged through the charging gun, the power supply control device specifically executes: when the voltage of the first detection point is detected to be switched from 12V to 9V, controlling a first switch in the corresponding CP signal detection circuit to be switched from a +12V connection state to a PWM connection state, and outputting a PWM signal containing a PWM duty ratio value, wherein the PWM duty ratio value is obtained by dividing the total number of the devices to be charged; further, when the voltage of the first detection point is detected to change from 9V to 6V, the corresponding first contactor and the second contactor are controlled to be closed.
Preferably, the CC signal connection confirmation circuit in each control pilot circuit group includes:
the alternating current charging device comprises a second switch connected with a ground wire of the alternating current charging pile, a second resistor connected with the second switch, and a third resistor connected with the second switch in parallel; and the second resistor is also used for being connected with a CC signal end of the equipment to be charged through a wiring harness.
Preferably, the CP signal detection circuit in each set of control pilot circuits includes:
the first switch is connected with a +12V voltage output end or a PWM signal output end of the power supply control device 1, and one end of the first switch is connected with the first resistor; the other end of the first resistor is used for being connected with a CP signal end in a control guide circuit of the equipment to be charged through a wire harness; the first switch is connected with the power supply control device through a wire harness;
and the first resistor and one end of the CP signal end in the control guide circuit are also connected with the power supply control device 1 through a wire harness to form a first detection point for voltage detection of the power supply control device.
Preferably, the maximum output power of each charging gun is the same, if the power supply control device detects that the voltages at two or more first detection points are switched from 12V to 9V at the same time, and determines that two or more devices to be charged exist, the power supply control device equally divides the PWM duty ratio value, and outputs a PWM signal containing the equally divided PWM duty ratio value to each device to be charged, so that each corresponding charging gun operates in a low-power mode;
when the power supply control device detects that the voltage of only one first detection point is switched from 12V to 9V, the power supply control device determines that only one device to be charged exists, and then the power supply control device outputs a PWM signal containing the maximum duty ratio value to the device to be charged, so that the corresponding charging gun works in a single-gun high-power mode.
The utility model has the advantages that:
the above-mentioned electric pile that fills of this embodiment under single rifle mode, can be with full-load output quick charge of rated power, under many guns (n rifle) mode, satisfies power supply system power requirement, and automatically regulated power distribution makes every way rifle that charges export with 1/n rated power. According to the scheme, flexible and quick charging of a plurality of vehicles under the condition that the load capacity of the front-end power grid cannot be changed is realized.
Drawings
Fig. 1 the utility model provides an alternating-current charging stake's structure block diagram.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1, the embodiment of the utility model provides an alternating-current charging stake, include:
a plurality of guns that charge, power supply control device and be used for the multiunit control guide circuit who is connected with a plurality of guns one-to-one that charge, multiunit control guide circuit sets up in parallel, each group control guide circuit all includes:
a first contactor (contactors K1 and K1 'in fig. 1) connected to the live line L of the ac charging pole and a second contactor (contactors K2 and K2' in fig. 1) connected to the neutral line N of the ac charging pole, the first contactor and the second contactor being connected to the power supply control device 1; a CC signal connection confirmation circuit 2 connected with a ground wire PE of the alternating current charging pile and a CP signal detection circuit 3 connected with the power supply control device 1; the CP signal detection circuit 3 in each group of control pilot circuits has a first detection point (detection point 1 and detection point 1' in fig. 1) for detecting the voltage of the power supply control device 1; when any one set of guidance control circuit is connected with the device to be charged through the charging gun, the power supply control device 1 specifically executes: when the voltage of a first detection point (detection point 1 and/or detection point 1') is detected to be switched from 12V to 9V, controlling a first switch in the corresponding CP signal detection circuit 3 to be switched from a +12V connection state to a PWM connection state, and outputting a PWM signal containing a PWM duty ratio value, wherein the PWM duty ratio value is obtained by dividing based on the total number of the devices to be charged; further, when the voltage of the first detection point is detected to change from 9V to 6V, the corresponding first contactor and the second contactor are controlled to be closed.
As shown in fig. 1, the control pilot circuits designed in this embodiment are divided into two groups for detailed description. And the two groups of control guide circuits are connected in parallel at the output ends of the live wire, the zero line and the ground wire of the alternating-current charging pile.
Wherein the CC signal connection confirmation circuit 2 in each control pilot circuit group includes:
a second switch (switches S2 and S2' in fig. 1) connected to the ground PE of the ac charging pole, a second resistor (resistors RC and RC ' in fig. 1) connected to the second switch, and a third resistor (resistors R3 and R3 ' in fig. 1) provided in parallel with the second switch; and the second resistor is also used for being connected with a CC signal end of the equipment to be charged through a wiring harness.
The CP signal detection circuit 3 in each of the control pilot circuits includes: a first switch (single pole double throw switches S1 and S1 'in fig. 1) connected to the +12V voltage output terminal or the PWM signal output terminal of the power supply control device 1, a first resistor (resistors R1 and R1' in fig. 1) having one end connected to the first switch; the other end of the first resistor is used for being connected with a CP signal end in a control guide circuit of the equipment to be charged through a wire harness; the first switch is connected with the power supply control device 1 through a wire harness; and the first resistor and one end of the CP signal end in the control guide circuit are also connected with the power supply control device 1 through a wire harness, so as to form a first detection point for voltage detection of the power supply control device 1.
The power supply control device 1 causes the first switch to selectively switch from the 12V connection state to the PWM connection state or from the PWM connection state to the 12V connection state by sending a signal to the first switch.
In addition, in this embodiment, the maximum output power of each charging gun is the same, and if the power supply control device 1 detects that the voltage at which two or more first detection points exist is switched from 12V to 9V at the same time, and it is determined that two or more devices to be charged exist, the power supply control device 1 equally divides the PWM duty cycle, and outputs a PWM signal including the equally divided PWM duty cycle value to each device to be charged, so that each corresponding charging gun operates in a low power mode; when the power supply control device 1 detects that only one first detection point is switched from 12V to 9V, it is determined that only one device to be charged exists, and the power supply control device 1 outputs a PWM signal containing a maximum duty ratio value to the device to be charged, so that a corresponding charging gun works in a single-gun high-power mode.
As shown in fig. 1, in this embodiment, two sets of control and pilot circuits are designed for detailed description, the ac charging pile with power distribution function designed in this embodiment includes a power supply control device 1, a single-pole double-throw switch S1 (a first switch), a resistor R1 (a first resistor), a resistor R1 '(a first resistor), a resistor R3 (a third resistor), a switch S2' (a second switch), a resistor RC '(a second resistor), a resistor RC (a second resistor), a switch S2 (a second switch), a resistor R3 (a third resistor), a ground wire (PE), a neutral wire (N), a live wire (L), a relay K2 (a second relay), a relay K1 (a first relay), a relay K1' (a first relay), a relay K2 '(a second relay), a single-pole double-throw switch S1' (a first switch), and so on, wherein each resistance selection type and each switch selection type are selected by referring to GB/T18487.1-2015.
In this embodiment, this fill electric pile includes single rifle mode and the double-gun mode of charging.
Wherein, the single rifle charge mode includes two kinds, and single rifle charge mode one specifically is: when the power supply control device 1 only detects that the voltage peak value of the detection point 1 is in a 6V or 9V state, the power supply control device 1 controls the single-pole double-throw switch S1 to be switched to a PWM state from a +12V state, the power supply control device 1 adjusts the PWM duty ratio value of a loop corresponding to the single-pole double-throw switch S1 to be a duty ratio value corresponding to high-power output, after the output condition is met, the power supply control device 1 controls the relay K1 and the relay K2 to be closed, and the charging pile works in a single-gun high-power working mode.
The second single-gun charging mode is as follows: when the power supply control device 1 only detects that the voltage peak value of the detection point 1' is in a 6V or 9V state, the power supply control device 1 controls the single-pole double-throw switch S1' to be switched to a PWM state from a +12V state, the power supply control device adjusts the PWM duty ratio value of a loop corresponding to the single-pole double-throw switch S1' to a duty ratio value corresponding to high-power output, after the output condition is met, the power supply control device 1 controls the relay K1' and the relay K2' to be closed, and the charging pile works in a single-gun high-power working mode.
The double-gun charging mode specifically comprises the following steps: when the power supply control device 1 detects that the voltage peak values of the detection point 1 and the detection point 1 'are both in 6V or 9V states, the single-pole double-throw switch S1 and the single-pole double-throw switch S1' are switched to PWM states from +12V states, the power supply control device adjusts duty ratio values of two paths of PWM into duty ratio values corresponding to low-power output, after output conditions are met, the control device 1 controls the relay K1, the relay K1', the relay K2 and the relay K2' to be closed, and the charging pile works in a double-gun low-power working mode.
In summary, the above embodiments solve the problem that charging two new energy vehicles at the same time cannot be realized due to input limitations. This design possesses two rifle that charge, when detecting two rifle connections vehicles that charge, fills two way output of electric pile and carries out average distribution according to total power, when detecting that only any rifle head that charges connects the vehicle, fills electric pile and can realize full power output.
The power supply control device 1 can detect the voltage states of the two paths of CP signals at the same time, and judges the identification of the number of external devices to be charged according to the voltage of the two paths of first detection points, so that the duty ratio of the CP signals is controlled, and the purpose of adjusting power is achieved.
When the voltages of the two first detection points are not in the charging connection state range, the two first relays and the two second relays are in a disconnection state, and the charging pile is in a standby state; when the voltage of only one path of first detection point is in the charging connection state range, the power supply control device 1 adjusts the PWM duty ratio value to be the value corresponding to the high power for output; when the voltage of the first detection point is in a chargeable state range, the power supply control device 1 controls the first relay and the second relay of the path to be closed, and the charging pile is in a single-gun high-power working mode; when the voltages of the two first detection points are in the charging connection state range, the power supply control device 1 adjusts the PWM duty ratio value to be the value corresponding to the low power to output, when the voltages of the first detection points are in the charging connection state range, the power supply control device 1 controls the first relay and the second relay of the path to be closed, and the charging pile is in a double-gun low-power working mode.
The alternating-current charging stake of this patent design has solved because of the restriction of input current can not realize giving the problem that two new forms of energy charge simultaneously to can export with high-power (rated power) under single gun mode.
Meanwhile, in the embodiment, the second contactor is arranged between each control guide circuit and the zero line N of the charging pile, so that the charging gun which does not need to be externally powered cannot be electrified due to the fact that the corresponding second contactor is in a disconnected state, charging safety can be guaranteed, and personal damage or property loss caused by electrification of the charging gun is prevented.
The foregoing embodiments have described only some of the one or more embodiments of the present invention, but it will be appreciated by those skilled in the art that the invention can be embodied in many other forms without departing from the spirit or scope of the invention. Accordingly, the present examples and embodiments are to be considered as illustrative and not restrictive, and various modifications and substitutions may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. An alternating current charging pile, comprising: a plurality of guns that charge, power supply control device and be used for the multiunit control guide circuit who is connected with a plurality of guns one-to-one that charge, multiunit control guide circuit sets up in parallel, each group control guide circuit all includes:
the first contactor is connected with a live wire (L) of the alternating-current charging pile, the second contactor is connected with a zero line (N) of the alternating-current charging pile, and the first contactor and the second contactor are connected with the power supply control device (1); a CC signal connection confirmation circuit (2) connected with a ground wire (PE) of the alternating current charging pile and a CP signal detection circuit (3) connected with the power supply control device (1); the CP signal detection circuit (3) in each group of control guidance circuits is provided with a first detection point for voltage detection of the power supply control device (1);
when any one group of control guidance circuits is connected with equipment to be charged through a charging gun, the power supply control device (1) specifically executes: when the voltage of the first detection point is detected to be switched from 12V to 9V, controlling a first switch in the corresponding CP signal detection circuit (3) to be switched from a +12V connection state to a PWM connection state, and outputting a PWM signal containing a PWM duty ratio value, wherein the PWM duty ratio value is obtained by dividing the total number of the devices to be charged; further, when the voltage of the first detection point is detected to change from 9V to 6V, the corresponding first contactor and the second contactor are controlled to be closed.
2. An AC charging post according to claim 1, characterized in that said CC signal connection confirmation circuit (2) in each control pilot circuit group comprises:
the charging device comprises a second switch connected with a ground wire (PE) of the alternating current charging pile, a second resistor connected with the second switch, and a third resistor connected with the second switch in parallel; and the second resistor is also used for being connected with a CC signal end of the equipment to be charged through a wiring harness.
3. An AC charging post according to claim 1 or 2, characterized in that said CP signal detection circuit (3) in each control pilot circuit group comprises:
the first switch is connected with a +12V voltage output end or a PWM signal output end of the power supply control device (1), and one end of the first switch is connected with the first resistor; the other end of the first resistor is used for being connected with a CP signal end in a control guide circuit of the equipment to be charged through a wire harness; the first switch is connected with the power supply control device (1) through a wire harness;
and the first resistor and one end of a CP signal end in the control guide circuit are also connected with the power supply control device (1) through a wire harness, so as to form a first detection point for voltage detection of the power supply control device (1).
4. An AC charging post according to claim 1, characterized in that the maximum output power of each charging gun is the same;
if the power supply control device (1) detects that the voltages of two or more first detection points are switched from 12V to 9V at the same time, and two or more devices to be charged are determined to exist, the power supply control device (1) equally divides the PWM duty ratio value, outputs PWM signals containing the equally divided PWM duty ratio value to each device to be charged and enables each corresponding charging gun to work in a low-power mode;
when the power supply control device (1) detects that the voltage of only one first detection point is switched from 12V to 9V, and only one device to be charged is determined to exist, the power supply control device (1) outputs a PWM signal containing the maximum duty ratio value to the device to be charged, so that a corresponding charging gun works in a single-gun high-power mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020960366.4U CN212422847U (en) | 2020-05-29 | 2020-05-29 | Alternating-current charging pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020960366.4U CN212422847U (en) | 2020-05-29 | 2020-05-29 | Alternating-current charging pile |
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| CN212422847U true CN212422847U (en) | 2021-01-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682179A (en) * | 2021-08-02 | 2021-11-23 | 国创移动能源创新中心(江苏)有限公司 | Power-on management method of charging gun communication module |
| CN114113748A (en) * | 2021-11-23 | 2022-03-01 | 上海挚达科技发展有限公司 | Charging detection device |
| CN114771317A (en) * | 2022-05-25 | 2022-07-22 | 上海瑞浦青创新能源有限公司 | Charging device and connection detection method and charging method thereof |
| CN116890685A (en) * | 2023-07-24 | 2023-10-17 | 宁波均胜群英智能技术有限公司 | Double-gun alternating-current charging and discharging system and method for vehicle |
-
2020
- 2020-05-29 CN CN202020960366.4U patent/CN212422847U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682179A (en) * | 2021-08-02 | 2021-11-23 | 国创移动能源创新中心(江苏)有限公司 | Power-on management method of charging gun communication module |
| CN114113748A (en) * | 2021-11-23 | 2022-03-01 | 上海挚达科技发展有限公司 | Charging detection device |
| CN114113748B (en) * | 2021-11-23 | 2024-04-12 | 上海挚达科技发展股份有限公司 | Charging detection device |
| CN114771317A (en) * | 2022-05-25 | 2022-07-22 | 上海瑞浦青创新能源有限公司 | Charging device and connection detection method and charging method thereof |
| CN116890685A (en) * | 2023-07-24 | 2023-10-17 | 宁波均胜群英智能技术有限公司 | Double-gun alternating-current charging and discharging system and method for vehicle |
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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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