433MHZ charging pile radio frequency emission module

Abstract

The utility model relates to a 433MHZ charging pile radio frequency emission module, which comprises an emission module, a control module, an interface module and a voltage stabilization module, the emission module is composed of a resonant capacitor C1, a resonant capacitor C5 and an ANT1, the ANT1 is a PCB antenna, the PCB antenna, the resonant capacitor C1 and the resonant capacitor C5 form a 433MHZ emission circuit, and the output end of the emission module is respectively connected to a TXM port and a TXP port of the control module. The beneficial effects of the utility model lie in that the resonant capacitor C1, the resonant capacitor C5 and the ANT1 form an RF resonant emission circuit, the PCB antenna, the resonant capacitor C1 and the resonant capacitor C5 form a 433MHZ emission circuit, 433MHZ control signals generated by the control circuit are emitted out, an automobile charging port is opened, the device is directly integrated on a charging gun of a charging pile to realize the functions of uncovering and charging by one key, and the device is convenient to use. The charging device is compatible with original gun pulling charging, and the connection mode is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy charging piles, in particular to a 433MHZ charging pile radio frequency transmitting module. Background Art

[0002] New energy charging piles, also known as electric vehicle charging devices, are energy replenishment devices that provide power for electric vehicles. Their functions are similar to those of gas pumps in gas stations. They can be fixed on the ground or on the wall and installed in public buildings and residential parking lots. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles.

[0003] However, in the prior art, the existing cover opening function needs to be opened in the car cab, which is inconvenient to operate and requires many actions. Utility Model Content

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a 433MHZ charging pile radio frequency transmission module.

[0005] The technical solution of the utility model is as follows: a 433MHZ charging pile radio frequency transmitting module, including a transmitting module, a control module, an interface module and a voltage stabilizing module, the transmitting module is composed of a resonant capacitor C1, a resonant capacitor C5 and an ANT1, the ANT1 is a PCB antenna, the PCB antenna, the resonant capacitor C1 and the resonant capacitor C5 constitute a 433MHZ transmitting circuit, and the output end of the transmitting module is respectively connected to the TXM port and the TXP port of the control module.

[0006] As a preferred implementation, the voltage stabilizing module is composed of a filter capacitor C3, a voltage stabilizing chip U2, and a filter capacitor C4. The first end of the filter capacitor C3 is externally connected to an input power supply and connected to a third port of the voltage stabilizing chip U2. The second port of the voltage stabilizing chip U2 is connected to the first end of the filter capacitor C4 and connected to a power supply VCC.

[0007] As a preferred implementation, the control module is composed of a dedicated single-chip microcomputer U1, a filter capacitor C2 and a pull-up resistor R1. The first end of the pull-up resistor R1 is externally connected to a power supply VCC, the second end of the pull-up resistor R1 is connected to a trigger switch and is connected to the first end of a TVS tube D1, the first end of the filter capacitor C2 is externally connected to a power supply VCC and is connected to a VDD port of the dedicated single-chip microcomputer U1, the GPIO7 port of the dedicated single-chip microcomputer U1 is externally connected to a trigger switch and is connected to the first end of the TVS tube D1, and the second end of the TVS tube D1 is connected to an interface module.

[0008] As a preferred implementation, the interface module consists of a CN1 connector, a TVS tube D2 and a TVS tube D3, the CN1 connector receives external power and control signal inputs, and the first ends of the TVS tube D2 and the TVS tube D3 are connected to the power and signal input interface.

[0009] As a preferred implementation, the second end of the TVS tube D1 is connected to the third port of the CN1 connector, and the first port of the CN1 connector is externally connected to the first end of the filter capacitor C3.

[0010] As a preferred implementation, the first ports of the filter capacitors C3 and C4 and the voltage regulator chip U2 are all grounded, the second end of the filter capacitor C2 is grounded, and the second ends of the TVS tubes D2 and D3 and the CN1 connector are all grounded.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] In the utility model, the resonant capacitor C1, the resonant capacitor C5 and the ANT1 form an RF resonant transmitting circuit, and through the PCB antenna, the resonant capacitor C1 and the resonant capacitor C5, a 433MHZ transmitting circuit is formed and the 433MHZ control signal generated by the control circuit is transmitted to open the car charging port. The device is directly integrated on the charging pile charging gun to realize the cover opening and charging functions with one button, and is compatible with the original gun pulling out charging, and the connection method is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a diagram of the radio frequency transmission module provided by the utility model.

[0014] Legend: 1. Transmitter module; 2. Control module; 3. Interface module; 4. Voltage regulator module. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1

[0018] like Figure 1As shown, the utility model provides a technical solution: including a transmitting module 1, a control module 2, an interface module 3 and a voltage stabilizing module 4, the transmitting module 1 is composed of a resonant capacitor C1, a resonant capacitor C5 and ANT1, ANT1 is a PCB antenna, the PCB antenna, the resonant capacitor C1 and the resonant capacitor C5 form a 433MHZ transmitting circuit, and the output end of the transmitting module 1 is respectively connected to the TXM port and the TXP port of the control module 2.

[0019] In this embodiment, the resonant capacitor C1, the resonant capacitor C5 and the ANT1 form an RF resonant transmitting circuit. Through the PCB antenna, the resonant capacitor C1 and the resonant capacitor C5, a 433MHZ transmitting circuit is formed and the 433MHZ control signal generated by the control circuit is transmitted to open the car charging port. The device is directly integrated on the charging pile charging gun to realize the cover opening and charging functions with one click. It is compatible with the original gun pulling out charging and has a simple connection method.

[0020] Example 2

[0021] like Figure 1 As shown, the voltage stabilizing module 4 is composed of a filter capacitor C3, a voltage stabilizing chip U2 and a filter capacitor C4. The first end of the filter capacitor C3 is externally connected to the input power supply and connected to the third port of the voltage stabilizing chip U2. The second port of the voltage stabilizing chip U2 is connected to the first end of the filter capacitor C4 and connected to the power supply VCC. After being stabilized by the voltage stabilizing chip U2, the stable voltage is filtered by the filter capacitor C4 and then provides power to the control circuit.

[0022] The control module 2 is composed of a dedicated single-chip computer U1, a filter capacitor C2 and a pull-up resistor R1. The first end of the pull-up resistor R1 is externally connected to a power supply VCC, the second end of the pull-up resistor R1 is connected to a trigger switch and is connected to a first end of a TVS tube D1, the first end of the filter capacitor C2 is externally connected to a power supply VCC and is connected to a VDD port of the dedicated single-chip computer U1, the GPIO7 port of the dedicated single-chip computer U1 is externally connected to a trigger switch and is connected to a first end of the TVS tube D1, the second end of the TVS tube D1 is connected to the interface module 3, a pull-up resistor with an appropriate resistance is selected to ensure that the GPIO7 port is in a high level state when the trigger switch is not closed, and an appropriate TVS tube is selected to protect the single-chip computer from voltage surges and electrostatic discharges;

[0023] The interface module 3 is composed of a CN1 connector, a TVS tube D2 and a TVS tube D3. The CN1 connector receives an external power supply and a control signal input. The first ends of the TVS tube D2 and the TVS tube D3 are connected to the power supply and signal input interface.

[0024] The second end of the TVS tube D1 is connected to the third port of the CN1 socket, and the first port of the CN1 socket is externally connected to the first end of the filter capacitor C3 to receive external power and control signals.

[0025] The first port of the filter capacitor C3, the filter capacitor C4 and the voltage regulator chip U2 are all grounded to filter the stray signals in the circuit and stabilize the voltage. The second end of the filter capacitor C2 is grounded to ensure the stability of the circuit. The second ends of the TVS tube D2, the TVS tube D3 and the CN1 socket are all grounded to provide additional voltage protection.

[0026] Working principle:

[0027] Transmitter module 1:

[0028] The resonant capacitor C1, the resonant capacitor C5 and ANT1 form an RF resonant transmitting circuit. Through ANT1 as a PCB antenna, the PCB antenna, the resonant capacitor C1 and the resonant capacitor C5 form a 433MHZ transmitting circuit to transmit the 433MHZ control signal generated by the control circuit.

[0029] Control module 2

[0030] It consists of dedicated single chip microcomputer U1, filter capacitor C2 and pull-up resistor R1

[0031] The power supply VCC is supplied to the dedicated microcontroller U1 through the filter capacitor C2, the trigger pin is linked, and the pull-up resistor R1 forms an anti-interference circuit to prevent the external button from being interfered with. The trigger pin is connected to the external TVS tube D1 and connected to the interface module 3.

[0032] Interface module 3

[0033] The interface part consists of the CN1 socket, which is connected to the external power supply and control signal input. TVS tube D2 and TVS tube D3 are connected to the power supply and signal input interface. After the input power and signal pass through the TVS tube, the power supply and signal amplitude are protected within the voltage withstand range allowed by the RF transmitter module.

[0034] Voltage regulator module 4

[0035] It is composed of filter capacitor C3, voltage regulator chip U2 and filter capacitor C4.

[0036] The input power passes through filter C3 and then through voltage stabilization circuit U2. After voltage stabilization by U2, the stable voltage is filtered by C4 and then provides power to the control circuit.

[0037] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A 433MHZ charging pile radio frequency transmission module, comprising a transmission module (1), a control module (2), an interface module (3) and a voltage stabilization module (4), characterized in that: The transmitting module (1) is composed of a resonant capacitor C1, a resonant capacitor C5 and ANT1, wherein ANT1 is a PCB antenna, and the PCB antenna, the resonant capacitor C1 and the resonant capacitor C5 form a 433 MHz transmitting circuit. The output end of the transmitting module (1) is respectively connected to a TXM port and a TXP port of a control module (2).

2. A 433MHZ charging pile radio frequency transmission module according to claim 1, characterized in that: The voltage stabilizing module (4) is composed of a filter capacitor C3, a voltage stabilizing chip U2 and a filter capacitor C4. The first end of the filter capacitor C3 is externally connected to an input power source and connected to a third port of the voltage stabilizing chip U2. The second port of the voltage stabilizing chip U2 is connected to the first end of the filter capacitor C4 and connected to a power source VCC.

3. A 433MHZ charging pile radio frequency transmission module according to claim 2, characterized in that: The control module (2) is composed of a dedicated single-chip computer U1, a filter capacitor C2 and a pull-up resistor R1; the first end of the pull-up resistor R1 is externally connected to a power source VCC; the second end of the pull-up resistor R1 is connected to a trigger switch and is connected to a first end of a TVS tube D1; the first end of the filter capacitor C2 is externally connected to a power source VCC and is connected to a VDD port of the dedicated single-chip computer U1; the GPIO7 port of the dedicated single-chip computer U1 is externally connected to a trigger switch and is connected to a first end of the TVS tube D1; and the second end of the TVS tube D1 is connected to an interface module (3).

4. A 433MHZ charging pile radio frequency transmission module according to claim 3, characterized in that: The interface module (3) is composed of a CN1 connector, a TVS tube D2 and a TVS tube D3. The CN1 connector receives external power and control signal inputs. The first ends of the TVS tube D2 and the TVS tube D3 are connected to the power and signal input interface.

5. A 433MHZ charging pile radio frequency transmission module according to claim 1, characterized in that: The second end of the TVS tube D1 is connected to the third port of the CN1 connector, and the first port of the CN1 connector is externally connected to the first end of the filter capacitor C3.

6. A 433MHZ charging pile radio frequency transmission module according to claim 4, characterized in that: The first ports of the filter capacitors C3 and C4 and the voltage stabilizing chip U2 are all grounded, the second end of the filter capacitor C2 is grounded, and the second ends of the TVS tubes D2 and D3 and the CN1 connector are all grounded.

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