Automobile charging pile and charging system

Abstract

The utility model provides an automobile charging pile and a charging system. The automobile charging pile comprises a power line carrier module, a main control module, a switch and a charging gun interface, the switch is connected in series between the AC power transmission line and the charging gun interface. The charging gun interface is used for connecting a charging gun. The first end of the power carrier module is connected with an AC power transmission line. The second end of the power carrier module is connected with the first end of the master control module. The second end of the main control module is connected with the control end of the switch. According to the utility model, the power line carrier module is arranged in the charging pile to process the high-frequency carrier signal, and the processed data is sent to the main control module for controlling the charging pile, so that the communication cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, and in particular to an automobile charging pile and a charging system. Background Art

[0002] In recent years, with the growing market of electric bicycle industry, the electric bicycle industry has flourished, the number of electric bicycles has also increased rapidly, and the corresponding demand for car charging piles has also increased.

[0003] In the prior art, a dedicated communication device needs to be set up between the charging pile and the server, which has high construction costs. Utility Model Content

[0004] The embodiment of the utility model provides a car charging pile and a charging system to solve the problem of high construction cost of setting a special communication device in the prior art.

[0005] In a first aspect, an embodiment of the utility model provides a car charging pile, including: a power carrier module, a main control module, a switch and a charging gun interface;

[0006] The switch is connected in series between the AC transmission line and the charging gun interface, and the charging gun interface is used to connect the charging gun;

[0007] The first end of the power carrier module is connected to the AC transmission line, and the second end of the power carrier module is connected to the first end of the main control module;

[0008] The second end of the main control module is connected to the control end of the switch.

[0009] Optionally, the car charging pile further includes: a coupling module;

[0010] The coupling module is connected in series in the AC transmission line and is coupled to the power carrier module.

[0011] Optionally, the car charging pile further includes: a protection filter module;

[0012] The protection filter module is connected in series in the AC power transmission and is located at the front end of the coupling module for filtering and protection.

[0013] Optionally, the first end of the power carrier module includes: a neutral line end and a live line end; the neutral line end is connected to the neutral line, and the live line end is connected to the live line; the power carrier module includes: a power carrier chip, a filtering unit and a serial port matching unit;

[0014] The neutral line communication port and the live line communication port of the power carrier chip are respectively connected to the neutral line terminal and the live line terminal through the filter unit;

[0015] The serial port of the power carrier chip is connected to the second end of the power carrier module through a serial port matching unit.

[0016] Optionally, the filtering unit includes: a first inductor and a second inductor;

[0017] The neutral line communication port of the power carrier chip is connected to the neutral line terminal through the first inductor;

[0018] The live wire communication port of the power carrier chip is connected to the live wire end through the second inductor.

[0019] Optionally, the filtering unit further includes: a first capacitor, a second capacitor and a third capacitor;

[0020] The first capacitor is connected between the neutral terminal and the live terminal;

[0021] A first end of the second capacitor is connected to the neutral line terminal, and a second end of the second capacitor is grounded;

[0022] A first end of the third capacitor is connected to the live wire terminal, and a second end of the third capacitor is grounded;

[0023] The first capacitor is an X capacitor, and the second capacitor and the third capacitor are Y capacitors.

[0024] Optionally, the serial port of the power carrier chip includes: a first serial port end and a second serial port end; the first end of the main control module includes: a first communication end and a second communication end; the first serial port end and the second serial port end are respectively connected to the first communication end and the second communication end through a serial port matching unit;

[0025] The serial port matching unit includes: a first resistor, a second resistor, a fourth capacitor and a fifth capacitor;

[0026] The first serial port end is connected to the first end of the first resistor and the first end of the fourth capacitor respectively; the second end of the first resistor is connected to the first communication end;

[0027] The second serial port end is connected to the first end of the second resistor; the second end of the second resistor is connected to the second communication end and the first end of the fifth capacitor respectively;

[0028] The second end of the fourth capacitor and the second end of the fifth capacitor are both grounded.

[0029] Optionally, the car charging pile further includes: a CP communication module;

[0030] One end of the CP communication module is connected to the main control module, and the second end of the CP communication module is connected to the vehicle through the CP line in the charging gun interface.

[0031] Optionally, the car charging pile further includes: a memory, a display screen, an alarm device and an image acquisition device;

[0032] The memory, display screen, alarm device and image acquisition device are all connected to the main control module.

[0033] In a second aspect, an embodiment of the utility model provides a charging system, including the charging pile and the host computer provided in the first aspect of the above embodiment;

[0034] The main control modules in each charging pile are connected to the host computer.

[0035] The embodiment of the utility model provides a car charging pile and a charging system. The car charging pile includes: a power carrier module, a main control module, a switch and a charging gun interface; the switch is connected in series between the AC transmission line and the charging gun interface, and the charging gun interface is used to connect the charging gun; the first end of the power carrier module is connected to the AC transmission line, and the second end of the power carrier module is connected to the first end of the main control module; the second end of the main control module is connected to the control end of the switch. The embodiment of the utility model sets a power carrier module in the charging pile to process the high-frequency carrier signal, and sends the processed data to the main control module for the control of the charging pile, without setting a separate communication device, reducing the communication cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 This is a structural schematic diagram of a car charging pile provided by an embodiment of the utility model;

[0038] Figure 2 This is a structural schematic diagram of another car charging pile provided by an embodiment of the utility model;

[0039] Figure 3 This is a schematic diagram of the circuit structure of a power carrier module provided by an embodiment of the utility model;

[0040] Figure 4 This is a circuit schematic diagram of a filter unit provided by an embodiment of the utility model;

[0041] Figure 5 It is a circuit schematic diagram of a serial port matching unit provided by an embodiment of the utility model;

[0042] Figure 6 It is a structural schematic diagram of another automobile charging pile provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0043] In order to enable people in the technical field to better understand the present solution, the technical solution in the embodiment of the present solution will be clearly described below in conjunction with the drawings in the embodiment of the present solution. Obviously, the described embodiment is an embodiment of a part of the present solution, not all of the embodiments. Based on the embodiments in the present solution, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present solution.

[0044] The term "including" and any other variations in the specification and claims of this solution and the above drawings mean "including but not limited to", and is intended to cover non-exclusive inclusions and is not limited to the examples listed in the text. In addition, the terms "first" and "second" are used to distinguish different objects, not to describe a specific order.

[0045] The following is a detailed description of the implementation of the present invention in conjunction with the specific drawings:

[0046] Figure 1 This is a schematic diagram of the structure of a car charging pile provided by an embodiment of the utility model. Figure 1 , the car charging pile includes: a power carrier module 11, a main control module 12, a switch 13 and a charging gun interface;

[0047] The switch 13 is connected in series between the AC transmission line (L, N) and the charging gun interface, and the charging gun interface is used to connect the charging gun;

[0048] The first end of the power carrier module 11 is connected to the AC transmission line, and the second end of the power carrier module 11 is connected to the first end of the main control module 12;

[0049] The second end of the main control module 12 is connected to the control end of the switch 13 .

[0050] In the embodiment of the utility model, a power carrier module 11 is provided. The power carrier module 11 directly obtains a high-frequency carrier signal from the AC transmission line and parses and sends it to the main control module 12 to realize communication with the server, and controls charging through the switch 13. There is no need to set up a separate communication device, thereby reducing the communication cost.

[0051] In one possible implementation, reference Figure 2 , the car charging pile may further include: a coupling module 14;

[0052] The coupling module 14 is connected in series in the AC transmission line and is coupled to the power carrier module 11 .

[0053] In the embodiment of the utility model, the high-frequency carrier signal is coupled and transmitted to the power carrier module 11, or the data sent by the main control module 12 is coupled and transmitted to the AC transmission line through the coupling module 14. The coupling module 14 provides a coupling channel for the AC transmission line and the power carrier module 11, and isolates the high-voltage signal from the low-voltage signal, thereby improving safety.

[0054] In one possible implementation, reference Figure 2 , the car charging pile may further include: a protection filter module 15;

[0055] The protection filter module 15 is connected in series in the AC power transmission and is located at the front end of the coupling module 14 for filtering and protection.

[0056] The protection filter module 15 is used for filtering and protection to prevent interference such as lightning strikes and surges on the power line from entering the interior of the vehicle charging pile, while also improving the accuracy of communication.

[0057] In one possible implementation, reference Figure 3 The first end of the power carrier module 11 includes: a neutral line end and a live line end; the neutral line end is connected to the neutral line, and the live line end is connected to the live line; the power carrier module 11 includes: a power carrier chip U1, a filtering unit 111 and a serial port matching unit 112;

[0058] The neutral line communication port and the live line communication port of the power carrier chip U1 are respectively connected to the neutral line terminal and the live line terminal through the filter unit 111;

[0059] The serial port of the power carrier chip U1 is connected to the second end of the power carrier module 11 through the serial port matching unit 112 .

[0060] In the embodiment of the utility model, a proprietary power carrier chip U1 is used to realize data processing. The power carrier chip U1 has a high-speed ADC inside, which can filter out the inherent 50HZ signal of the mains, line interference signal, etc., and restore and decode the effective high-frequency power carrier signal into a digital signal, which is sent to the main control module 12 through the serial port to realize data reception.

[0061] At the same time, it can also receive data sent by the main control module 12, convert it into two analog differential signals through the internal high-speed DAC, then amplify the power through the internal power amplifier of the chip, and finally load it to the AC transmission line to realize data transmission.

[0062] Since other components are connected to the AC transmission line, in order to avoid interference, a filter unit 111 is provided at the inlet end of the power carrier module 11 to reduce the influence of interference and improve the accuracy of power carrier communication.

[0063] In one possible implementation, reference Figure 4, the filtering unit 111 may include: a first inductor L1 and a second inductor L2;

[0064] The neutral line communication port of the power carrier chip U1 is connected to the neutral line terminal through the first inductor L1;

[0065] The live wire communication port of the power carrier chip U1 is connected to the live wire terminal through the second inductor L2.

[0066] The utility model can filter out high-frequency interference on the neutral line and the live line through the first inductor L1 and the second inductor L2.

[0067] In one possible implementation, reference Figure 4 , the filtering unit 111 may further include: a first capacitor C1, a second capacitor C2 and a third capacitor C3;

[0068] The first capacitor C1 is connected between the neutral terminal and the live terminal;

[0069] A first end of the second capacitor C2 is connected to the neutral line terminal, and a second end of the second capacitor C2 is grounded;

[0070] A first end of the third capacitor C3 is connected to the live wire end, and a second end of the third capacitor C3 is grounded;

[0071] The first capacitor C1 is an X capacitor, and the second capacitor C2 and the third capacitor C3 are Y capacitors.

[0072] The first capacitor C1 is an X capacitor, which is used to filter out differential mode interference, and can also increase the impedance of the carrier channel to reduce the attenuation of the PLC signal. The second capacitor C2 and the third capacitor C3 are Y capacitors, which are used to filter out common mode interference.

[0073] In one possible implementation, reference Figure 5 The serial port of the power carrier chip U1 may include: a first serial port end and a second serial port end; the first end of the main control module 12 includes: a first communication end and a second communication end; the first serial port end and the second serial port end are respectively connected to the first communication end and the second communication end through the serial port matching unit 112;

[0074] The serial port matching unit 112 includes: a first resistor R1, a second resistor R2, a fourth capacitor C4 and a fifth capacitor C5;

[0075] The first serial port end is connected to the first end of the first resistor R1 and the first end of the fourth capacitor C4 respectively; the second end of the first resistor R1 is connected to the first communication end;

[0076] The second serial port end is connected to the first end of the second resistor R2; the second end of the second resistor R2 is connected to the second communication end and the first end of the fifth capacitor C5 respectively;

[0077] A second end of the fourth capacitor C4 and a second end of the fifth capacitor C5 are both grounded.

[0078] In one possible implementation, reference Figure 6 , the car charging pile also includes: a CP communication module 16;

[0079] One end of the CP communication module 16 is connected to the main control module 12 , and a second end of the CP communication module 16 is connected to the vehicle via a CP line in the charging gun interface.

[0080] In the embodiment of the utility model, a CP communication module 16 is further provided. The main control module 12 can be connected to the CP signal line in the vehicle charging line through the CP communication module 16, and the communication between the charging pile and the vehicle is realized through the CP signal line, thereby reducing the communication cost.

[0081] In one possible implementation, reference Figure 6 , the car charging pile may also include: a memory 17, a display screen 18, an alarm device 19 and an image acquisition device 20;

[0082] The memory 17 , the display screen 18 , the alarm device 19 and the image acquisition device 20 are all connected to the main control module 12 .

[0083] The embodiment of the utility model is further provided with a memory 17 for storing relevant data when the communication of the main control module 12 is interrupted.

[0084] The display screen 18 can be used to display the current working status of the charging pile, which is convenient for the administrator to monitor.

[0085] The alarm device 19 is used to issue an alarm when there is an abnormality or failure in the charging pile, prompting the administrator to perform maintenance in time.

[0086] The image acquisition device 20 is used to collect image information around the charging pile, monitor the charging pile and the surrounding environment, and record the use of the equipment in real time, so as to timely discover abnormalities in the charging pile or deliberate damage to the charging pile.

[0087] Corresponding to the above embodiment, the embodiment of the utility model further provides a charging system, including the charging pile and the host computer provided in the above embodiment of the utility model;

[0088] The main control module 12 in each charging pile is connected to the host computer.

[0089] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A car charging pile, characterized in that: include: Power carrier module, main control module, switch and charging gun interface; The switch is connected in series between the AC transmission line and the charging gun interface, and the charging gun interface is used to connect the charging gun; The first end of the power carrier module is connected to the AC transmission line, and the second end of the power carrier module is connected to the first end of the main control module; The second end of the main control module is connected to the control end of the switch.

2. The vehicle charging pile according to claim 1, characterized in that: The vehicle charging pile further comprises: a coupling module; The coupling module is connected in series in the AC transmission line and is coupled to the power carrier module.

3. The vehicle charging pile according to claim 2, characterized in that: The automobile charging pile further includes: a protection filter module; The protection and filtering module is connected in series in the AC power transmission and is located at the front end of the coupling module for filtering and protection.

4. The vehicle charging pile according to claim 1, characterized in that: The first end of the power carrier module includes: a neutral line end and a live line end; the neutral line end is connected to the neutral line, and the live line end is connected to the live line; the power carrier module includes: a power carrier chip, a filtering unit and a serial port matching unit; The neutral line communication port and the live line communication port of the power carrier chip are respectively connected to the neutral line terminal and the live line terminal through the filtering unit; The serial port of the power carrier chip is connected to the second end of the power carrier module through the serial port matching unit.

5. The vehicle charging pile according to claim 4, characterized in that: The filtering unit comprises: a first inductor and a second inductor; The neutral line communication port of the power carrier chip is connected to the neutral line terminal through the first inductor; The FireWire communication port of the power carrier chip is connected to the FireWire terminal through the second inductor.

6. The vehicle charging pile according to claim 5, characterized in that: The filtering unit further includes: a first capacitor, a second capacitor and a third capacitor; The first capacitor is connected between the neutral terminal and the live terminal; A first end of the second capacitor is connected to the neutral line terminal, and a second end of the second capacitor is grounded; The first end of the third capacitor is connected to the live wire end, and the second end of the third capacitor is grounded; The first capacitor is an X capacitor, and the second capacitor and the third capacitor are Y capacitors.

7. The vehicle charging pile according to claim 4, characterized in that: The serial port of the power carrier chip includes: a first serial port end and a second serial port end; the first end of the main control module includes: a first communication end and a second communication end; the first serial port end and the second serial port end are respectively connected to the first communication end and the second communication end through the serial port matching unit; The serial port matching unit includes: a first resistor, a second resistor, a fourth capacitor and a fifth capacitor; The first serial port end is connected to the first end of the first resistor and the first end of the fourth capacitor respectively; the second end of the first resistor is connected to the first communication end; The second serial port end is connected to the first end of the second resistor; the second end of the second resistor is connected to the second communication end and the first end of the fifth capacitor respectively; The second end of the fourth capacitor and the second end of the fifth capacitor are both grounded.

8. The vehicle charging pile according to any one of claims 1 to 7, characterized in that: The vehicle charging pile further includes: a CP communication module; One end of the CP communication module is connected to the main control module, and a second end of the CP communication module is connected to the vehicle via a CP line in the charging gun interface.

9. The vehicle charging pile according to any one of claims 1 to 7, characterized in that: The car charging pile also includes: a memory, a display screen, an alarm device and an image acquisition device; The memory, the display screen, the alarm device and the image acquisition device are all connected to the main control module.

10. A charging system, characterized in that: Comprising the charging pile and the host computer as claimed in any one of claims 1 to 9; The main control modules in each charging pile are connected to the host computer.

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