315MHZ charging pile radio frequency emission module
By designing a 315MHZ radio frequency transmitting module in a new energy charging pile, circuit switching is achieved using components such as a touch switch and MOS tube, the problem of inconvenient operation of the charging pile opening function is solved, and a simple charging process and efficient circuit management are realized.
Patent Information
- Application Number
- CN202420892232.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The open cover function of existing new energy charging piles requires operation in the car cab, which is inconvenient to operate and has many actions, making it difficult to achieve a simple charging process.
A 315MHZ charging pile radio frequency transmission module is designed, including a transmission module, a control module, an interface module, a voltage stabilization module and a switching module. The circuit switching control is realized by touching the switch SW1, and the signal processing method is adjusted using the protocol resistors R2 and R5. Switch the state control power consumption of MOS tubes Q1 and Q3, and directly integrate it on the charging gun to realize one-click open cover charging function.
It has achieved simplification and flexibility in the charging process, replaced the original gun-pull charging method, and has simple connections, which has improved the controllability of the circuit and power consumption management.
Smart Images
Figure CN222169799U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy charging piles, in particular to a 315MHZ charging pile radio frequency transmitting module. Background Art
[0002] New energy charging piles refer to equipment that provides power charging services for new energy vehicles such as electric vehicles and hybrid vehicles. With the development and popularization of electric vehicles, charging piles have become one of the infrastructures supporting the development of the electric vehicle industry.
[0003] However, in the prior art, the existing cover opening function in the existing market needs to be opened in the car cab, which is inconvenient to operate and requires many actions. The new technology is directly integrated on the charging pile charging gun to realize the cover opening and charging functions with one click, and the connection is simple. 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 315MHZ charging pile radio frequency transmission module.
[0005] The technical solution of the utility model is as follows: a 315MHZ charging pile radio frequency transmitting module, including a transmitting module, a control module, an interface module, a voltage stabilizing module and a switching module, the switching module is composed of a pull-up resistor R3, a filter capacitor C6, a current limiting resistor R6, a phase-changing MOS tube Q1, a protocol resistor R2, a protocol resistor R5, a touch switch SW1, a current limiting resistor R7, a phase-changing MOS tube Q3, a pull-up resistor R4 and a trigger MOS tube Q2. The gate of the trigger MOS tube Q2 is connected to the second end of the pull-up resistor R4, the second end of the pull-up resistor R4 is connected to the drain of the phase-changing MOS tube Q3, the gate of the phase-changing MOS tube Q3 is connected to the first end of the current limiting resistor R7, and the second end of the current limiting resistor R7 is connected to the first end of the filter capacitor C6 and the first end of the touch switch SW1.
[0006] As a preferred implementation, the first end of the filter capacitor C6 is connected to the second end of the current limiting resistor R6 and the second end of the pull-up resistor R3, the current limiting resistor R6 is connected to the gate of the phase-changing MOS tube Q1, the drain of the phase-changing MOS tube Q1 is connected to the second end of the protocol resistor R2 and the first end of the protocol resistor R5, and the protocol resistor R2 and the pull-up resistor R3 are externally connected to the interface module.
[0007] As a preferred implementation, the transmitting module is composed of a resonant capacitor C3, a resonant capacitor C4 and ANT1, the ANT1 is a PCB antenna, the PCB antenna, the resonant capacitor C3 and the resonant capacitor C4 constitute a 315MHZ 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.
[0008] As a preferred implementation, the control module is composed of a dedicated MCU U2, a filter capacitor C5 and a pull-up resistor R1, the first end of the pull-up resistor R1 is connected to an external power supply VCC, the second end of the pull-up resistor R1 is connected to a GPIO7 port of the dedicated MCU U2 through a trigger switch and is connected to the drain of the trigger MOS tube Q2 in the switching module, and the external power supply VCC is connected to a first end of the filter capacitor C5 and is connected to a VDD port of the dedicated MCU U2.
[0009] As a preferred implementation, the interface module consists of a CN1 connector, a TVS tube D1 and a TVS tube D2, the CN1 connector receives input of external power and control signals, the first end of the TVS tube D2 is connected to the first port of the CN1 connector, and the first end of the TVS tube D1 is connected to the third port of the CN1 connector.
[0010] As a preferred implementation, the first port of the CN1 connector is externally connected to a voltage stabilizing module, and the third port of the CN1 connector is connected to a first end of a pull-up resistor R3 in a switching module.
[0011] As a preferred implementation, the voltage stabilizing module is composed of a filter capacitor C1, a voltage stabilizing chip U1, and a filter capacitor C2. The first end of the filter capacitor C2 is externally connected to an input power supply and connected to a third port of the voltage stabilizing chip U1. The second port of the voltage stabilizing chip U2 is connected to the first end of the filter capacitor C1 and connected to a power supply VCC.
[0012] As a preferred implementation manner, the second ends of the filter capacitors C1, C2, C5 and C6, the sources of the trigger MOS tubes Q2 and Q3, and the second ends of the TVS tubes D1 and D2 are all grounded.
[0013] Compared with the prior art, the advantages and positive effects of the utility model are:
[0014] In the utility model, by pressing the touch switch SW1, the switching control of the circuit can be realized. This control method can be used to start, stop or switch different circuit functions, which improves the flexibility and controllability of the circuit. The signal processing method in the circuit can be adjusted by the combination of protocol resistors R2 and R5. By switching the states of MOS tubes Q1 and Q3, the power consumption of the circuit can be effectively controlled. A 315MHZ charging pile RF transmitter module is provided, and it is used to transmit a control signal to open the preparation of the car charging port. The new technology is directly integrated on the charging pile charging gun to realize the cover opening and charging functions with one click, and replaces the original gun pulling charging. And the connection is simple. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a diagram of the radio frequency transmission module provided by the utility model.
[0016] Legend: 1. Transmitter module; 2. Control module; 3. Interface module; 4. Voltage regulator module; 5. Switching module. DETAILED DESCRIPTION
[0017] 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.
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] Example 1
[0020] like Figure 1 As shown, the utility model provides a technical solution: including a transmitting module 1, a control module 2, an interface module 3, a voltage stabilizing module 4 and a switching module 5, characterized in that: the switching module 5 is composed of a pull-up resistor R3, a filter capacitor C6, a current limiting resistor R6, a phase-changing MOS tube Q1, a protocol resistor R2, a protocol resistor R5, a touch switch SW1, a current limiting resistor R7, a phase-changing MOS tube Q3, a pull-up resistor R4 and a trigger MOS tube Q2, the gate of the trigger MOS tube Q2 is connected to the second end of the pull-up resistor R4, and the second end of the pull-up resistor R4 is connected to the phase-changing The drain of the MOS tube Q3 is connected, the gate of the phase-changing MOS tube Q3 is connected to the first end of the current limiting resistor R7, the second end of the current limiting resistor R7 is connected to the first end of the filter capacitor C6 and the first end of the touch switch SW1, the first end of the filter capacitor C6 and the second end of the current limiting resistor R6 are connected to the second end of the pull-up resistor R3, the current limiting resistor R6 is connected to the gate of the phase-changing MOS tube Q1, the drain of the phase-changing MOS tube Q1 is connected to the second end of the protocol resistor R2 and the first end of the protocol resistor R5, and the protocol resistor R2 and the pull-up resistor R3 are externally connected to the interface module 3.
[0021] In this embodiment, by pressing the touch switch SW1, the switching control of the circuit can be realized. This control method can be used to start, stop or switch different circuit functions, which improves the flexibility and controllability of the circuit. The signal processing method in the circuit can be adjusted by the combination of protocol resistors R2 and R5. By switching the state of MOS tubes Q1 and Q3, the power consumption of the circuit can be effectively controlled. A 315MHZ charging pile RF transmitter module is provided, and it is used to transmit a control signal to open the preparation of the car charging port. The new technology is directly integrated on the charging pile charging gun to realize the cover opening and charging functions with one click, and replaces the original gun pulling charging. And the connection is simple.
[0022] Example 2
[0023] like Figure 1 As shown, the transmitting module 1 is composed of a resonant capacitor C3, a resonant capacitor C4 and ANT1. ANT1 is a PCB antenna. The PCB antenna, the resonant capacitor C3 and the resonant capacitor C4 form a 315MHZ transmitting circuit to transmit the 315MHZ control signal generated by the control circuit. The output end of the transmitting module 1 is connected to the TXM port and the TXP port of the control module 2 respectively.
[0024] The control module 2 is composed of a dedicated MCU U2, a filter capacitor C5 and a pull-up resistor R1. The first end of the pull-up resistor R1 is connected to an external power supply VCC. The second end of the pull-up resistor R1 is connected to the GPIO7 port of the dedicated MCU U2 through a trigger switch and is connected to the drain of the trigger MOS tube Q2 in the switching module 5. The external power supply VCC is connected to the first end of the filter capacitor C5 and is connected to the VDD port of the dedicated MCU U2. The external power supply VCC supplies power to the dedicated MCU U2 through the filter capacitor C5. The trigger pin is linked to the pull-up resistor R1 to form an anti-interference circuit to prevent the external button from being interfered with. The trigger pin is externally connected to the switching module 5.
[0025] The interface module 3 is composed of a CN1 connector, a TVS tube D1 and a TVS tube D2. The CN1 connector receives the input of external power and control signals. The first end of the TVS tube D2 is connected to the first port of the CN1 connector. The first end of the TVS tube D1 is connected to the third port of the CN1 connector. At the power and signal input interface, after the input power and signal pass through the TVS tube D1 and the TVS tube D2, the power and signal amplitudes are protected within the withstand voltage range allowed by the RF transmitter module.
[0026] The first port of the CN1 socket is externally connected to the voltage stabilizing module 4, and the third port of the CN1 socket is connected to the first end of the pull-up resistor R3 in the switching module 5;
[0027] The voltage stabilizing module 4 is composed of a filter capacitor C1, a voltage stabilizing chip U1 and a filter capacitor C2. The first end of the filter capacitor C2 is externally connected to the input power supply and connected to the third port of the voltage stabilizing chip U1. The second port of the voltage stabilizing chip U2 is connected to the first end of the filter capacitor C1 and connected to the power supply VCC. The input power passes through the filter capacitor C1, and then passes through the voltage stabilizing circuit U1. After being stabilized by the voltage stabilizing chip U1, the stable voltage is filtered by the filter capacitor C2 and then provides power to the control circuit.
[0028] The second ends of the filter capacitors C1, C2, C5 and C6, the sources of the trigger MOS tubes Q2 and Q3, and the second ends of the TVS tubes D1 and D2 are all grounded. Grounding the second ends of these components can provide a stable reference point, which helps to stabilize the operation of the circuit and protect other components in the circuit from overvoltage.
[0029] Working principle: Transmitter module 1:
[0030] The resonant capacitor C3, the resonant capacitor C4 and ANT1 form an RF resonant transmitting circuit, through ANT1 as a PCB antenna, and then through the PCB antenna, the resonant capacitor C3 and the resonant capacitor C4, a 315MHZ transmitting circuit is formed, and the 315MHZ control signal generated by the control circuit is transmitted.
[0031] Control module 2
[0032] It consists of a dedicated MCU U2, a filter capacitor C5 and a pull-up resistor R1;
[0033] The power supply VCC supplies power to the dedicated MCU U2 through the filter capacitor C5. The trigger pin is connected to the pull-up resistor R1 to form an anti-interference circuit to prevent the external button from being interfered. The trigger pin is externally connected to the switching module 5.
[0034] Interface module 3
[0035] The interface part consists of CN1 socket, which is connected to the external power input and control signal input. TVS tube D1 and TVS tube D2 are connected to the power and signal input interface. After the input power and signal pass through the TVS tube, the power and signal amplitude are protected within the voltage range allowed by the RF transmitter module.
[0036] Voltage regulator module 4
[0037] It is composed of filter capacitor C1, voltage regulator chip U1 and filter capacitor C2
[0038] The input power passes through the filter capacitor C1 and then the voltage regulator chip U1. After being stabilized by the voltage regulator chip U1, the stable voltage is filtered by the filter capacitor C2 and then provides power to the control module 2.
[0039] Switching module 5
[0040] The switching module 5 is composed of a pull-up resistor R3, a filter capacitor C6, a current limiting resistor R6, a phase-changing MOS tube Q1, a protocol resistor R2, a protocol resistor R5, a touch switch SW1, a current limiting resistor R7, a phase-changing MOS tube Q3, a pull-up resistor R4 and a trigger MOS tube Q2;
[0041] When the touch switch SW1 is pressed, the commutation MOS tube Q3 changes from the on state to the off state, and the triggering MOS tube Q2 changes from the off state to the on state, thereby triggering the control module 2.
[0042] When the touch switch SW1 is pressed, the phase-changing MOS tube Q1 changes from the on state to the off state, the short-circuit state of the protocol resistor R5 is released, and the resistance value of the protocol resistor is changed from the protocol resistor R2 to the sum of the protocol resistor R2 and the protocol resistor R5.
[0043] 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 315MHZ charging pile radio frequency transmission module, comprising a transmission module (1), a control module (2), an interface module (3), a voltage stabilization module (4) and a switching module (5), characterized in that: The switching module (5) is composed of a pull-up resistor R3, a filter capacitor C6, a current limiting resistor R6, a phase-changing MOS tube Q1, a protocol resistor R2, a protocol resistor R5, a touch switch SW1, a current limiting resistor R7, a phase-changing MOS tube Q3, a pull-up resistor R4 and a trigger MOS tube Q2, wherein the gate of the trigger MOS tube Q2 is connected to the second end of the pull-up resistor R4, the second end of the pull-up resistor R4 is connected to the drain of the phase-changing MOS tube Q3, the gate of the phase-changing MOS tube Q3 is connected to the first end of the current limiting resistor R7, and the second end of the current limiting resistor R7 is connected to the first end of the filter capacitor C6 and the first end of the touch switch SW1.
2. A 315MHZ charging pile radio frequency transmission module according to claim 1, characterized in that: The first end of the filter capacitor C6 is connected to the second end of the current limiting resistor R6 and the second end of the pull-up resistor R3; the current limiting resistor R6 is connected to the gate of the phase-changing MOS tube Q1; the drain of the phase-changing MOS tube Q1 is connected to the second end of the protocol resistor R2 and the first end of the protocol resistor R5; the protocol resistor R2 and the pull-up resistor R3 are externally connected to the interface module (3).
3. A 315MHZ charging pile radio frequency transmitting module according to claim 1, characterized in that: The transmitting module (1) is composed of a resonant capacitor C3, a resonant capacitor C4 and ANT1, wherein ANT1 is a PCB antenna, and the PCB antenna, the resonant capacitor C3 and the resonant capacitor C4 form a 315 MHz transmitting circuit. The output end of the transmitting module (1) is respectively connected to the TXM port and the TXP port of the control module (2).
4. A 315MHZ charging pile radio frequency transmission module according to claim 1, characterized in that: The control module (2) is composed of a dedicated MCU U2, a filter capacitor C5 and a pull-up resistor R1. The first end of the pull-up resistor R1 is connected to an external power supply VCC. The second end of the pull-up resistor R1 is connected to a GPIO7 port of the dedicated MCU U2 through a trigger switch and is connected to the drain of a trigger MOS tube Q2 in a switching module (5). The external power supply VCC is connected to a first end of the filter capacitor C5 and is connected to a VDD port of the dedicated MCU U2.
5. A 315MHZ charging pile radio frequency transmitting module according to claim 1, characterized in that: The interface module (3) is composed of a CN1 connector, a TVS tube D1 and a TVS tube D2. The CN1 connector receives input of an external power supply and a control signal. The first end of the TVS tube D2 is connected to the first port of the CN1 connector. The first end of the TVS tube D1 is connected to the third port of the CN1 connector.
6. A 315MHZ charging pile radio frequency transmission module according to claim 1, characterized in that: The first port of the CN1 socket is externally connected to a voltage stabilizing module (4), and the third port of the CN1 socket is connected to a first end of a pull-up resistor R3 in a switching module (5).
7. A 315MHZ charging pile radio frequency transmitting module according to claim 1, characterized in that: The voltage stabilizing module (4) is composed of a filter capacitor C1, a voltage stabilizing chip U1 and a filter capacitor C2. The first end of the filter capacitor C2 is externally connected to an input power source and connected to a third port of the voltage stabilizing chip U1. The second port of the voltage stabilizing chip U2 is connected to the first end of the filter capacitor C1 and connected to a power source VCC.
8. A 315MHZ charging pile radio frequency transmitting module according to claim 1, characterized in that: The second ends of the filter capacitors C1, C2, C5 and C6, the sources of the trigger MOS tubes Q2 and Q3, and the second ends of the TVS tubes D1 and D2 are all grounded.