CN218213852U - Automobile switch circuit - Google Patents
Automobile switch circuit Download PDFInfo
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- CN218213852U CN218213852U CN202222748445.0U CN202222748445U CN218213852U CN 218213852 U CN218213852 U CN 218213852U CN 202222748445 U CN202222748445 U CN 202222748445U CN 218213852 U CN218213852 U CN 218213852U
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Abstract
The utility model discloses a car switch circuit, including switch module, switch module includes the pilot lamp, backlight and electrically conductive button, switch module still includes first wiring end, the second wiring end and be used for detecting first wiring end PWM signal and voltage signal's controller, switch module is still including the lamp circuit in a poor light, the pilot lamp circuit, signal transmission line and button circuit, the lamp circuit in a poor light, the pilot lamp circuit, signal transmission line and button circuit's input is connected with first wiring end, the lamp circuit in a poor light, the output and the controller of pilot lamp circuit and signal transmission line are connected, the lamp in a poor light is established ties on the lamp circuit in a poor light, the pilot lamp is established ties on the pilot lamp circuit, button circuit output ground connection, electrically conductive button is established ties on the button circuit, carry out signal detection to the wire through adding a controller on automobile switch, thereby realize the control to backlight and pilot lamp.
Description
Technical Field
The utility model relates to an automotive circuit technical field, in particular to automobile switch circuit.
Background
The automobile switch is the most basic product for information interaction between people and an automobile in the automobile, a large number of switches are distributed in the automobile, the switches are connected to a controller in the automobile through conducting wires, the functions of the automobile switch are mainly to transmit on and off of electric signals to a control module of the automobile, meanwhile, in order to facilitate observation of the switches at night, the switches have a backlight function, backlights can be lightened when the switches are powered on, and a plurality of switches also have working indicator lamps to indicate the working state of the current switch.
Disclosure of Invention
The utility model aims at: in order to overcome the defects of the prior art, the utility model provides an automobile switch circuit carries out signal detection to the wire through adding a controller on automobile switch to the realization is to the control of backlight and pilot lamp.
The utility model discloses a car switch circuit, including switch module, switch module includes pilot lamp, backlight and conductive button, its characterized in that: the switch module further comprises a first terminal, a second terminal and a controller for detecting the PWM signal and the voltage signal of the first terminal;
the switch module also comprises a backlight lamp circuit, an indicator lamp circuit, a signal transmission line and a key circuit;
one end of the backlight lamp circuit is connected with the first wiring terminal, and the other end of the backlight lamp circuit is connected with the backlight lamp in series and is connected with the controller, so that the control of the backlight lamp is realized;
one end of the indicator light circuit is connected with the first wiring terminal, and the other end of the indicator light circuit is connected with the indicator light in series and is connected with the controller, so that the indicator light is controlled;
one end of the signal transmission line is connected with the first wiring terminal, and the other end of the signal transmission line is connected with the controller, so that the acquisition of PWM signals and voltage signals is realized;
one end of the key circuit is connected with the first wiring terminal, the other end of the key circuit is connected with the conductive key in series and is grounded, and the second wiring terminal is grounded.
The utility model discloses a further setting again: the LED backlight lamp also comprises a resistor R6, wherein the resistor R6 is connected with the backlight lamp in series.
The utility model discloses a further setting: the LED lamp also comprises a resistor R5, wherein the resistor R5 is connected with the indicator lamp in series.
The utility model discloses a further setting: the controller includes HV0 pin, HV1 pin, VBAT pin, GPIO pin and GND pin, the one end and the first wiring end electricity of backlight are connected, the other end is connected with HV0 pin electricity, pilot lamp one end is connected with first wiring end electricity, the other end is connected with HV1 pin electricity, still including diode D1, resistance R7, resistance R8 and electric capacity C1, diode D1 one end is connected with first wiring end, the other end is connected with VBAT pin, resistance R7 one end is connected with first wiring end, the other end is connected with the GPIO pin, resistance R8 one end is connected the other end with GPIO pin and is connected with the GND pin, electric capacity C1 one end is connected with the GND pin, the other end and VBAT pin.
By adopting the technical scheme, the automobile switch only needs two conductive wires externally, and the plug connector of the main control module on the automobile can also adopt the plug connector of two pins, so that the two conductive wires are connected with the switch module, and the controller controls the on and off of the backlight and the indicator lamp by acquiring the voltage of the first wiring end and the PWM signal.
Drawings
FIG. 1 is a block diagram of the circuit of the present invention;
FIG. 2 is a circuit block diagram of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a partially enlarged view of fig. 2.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
the utility model discloses an automobile switch circuit, including switch module 1, switch module 1 includes pilot lamp 11, backlight 12 and conductive button 13, the utility model discloses in the implementation case, switch module 1 still includes first wiring end 2, second wiring end 3 and be used for detecting the PWM signal of first wiring end 2 and voltage signal's controller 4, switch module 1 is still including backlight circuit 51, pilot lamp circuit 52, signal transmission line 53 and key circuit 54, its one end of backlight circuit 51 is connected with first wiring end 2, the other end is established ties backlight 11 and is connected with controller 4, realize the control to backlight 11, its one end of pilot lamp circuit 52 is connected with first wiring end 2, other end is established ties pilot lamp 11 and is connected with controller 4, the realization is to the control of pilot lamp, its one end of signal transmission line 53 is connected with first wiring end 2 and is connected the other end and is connected with controller 4 and realizes the collection of PWM signal and voltage signal, its one end of key circuit 54 is connected with first wiring end 2, the other end is established ties conductive button 13 and ground connection, second wiring end 3 ground connection.
The controller 4 includes HV0 pin, HV1 pin, VBAT pin, GPIO pin and GND pin, the one end and the first wiring end 2 electricity of backlight 12 are connected, the other end is connected with HV0 pin electricity, 11 one end of pilot lamp is connected with first wiring end 2 electricity, the other end is connected with HV1 pin electricity, still including diode D1, resistance R7, resistance R8 and electric capacity C1, diode D1 one end is connected with first wiring end 2, the other end is connected with the VBAT pin, resistance R7 one end is connected with first wiring end 2, the other end is connected with the GPIO pin, resistance R8 one end is connected the other end with the GPIO pin and is connected with the GND pin, electric capacity C1 one end is connected with the GND pin, the other end and the VBAT pin.
The LED backlight lamp also comprises a resistor R6, wherein the resistor R6 is connected with the backlight lamp 12 in series, and the LED backlight lamp also comprises a resistor R5, and the resistor R5 is connected with the indicating lamp string 11 in series.
Adopt above-mentioned technical scheme, automobile switch only need two conductor wires outward can, the plug connector of the main control module 6 on the car also can adopt the plug connector of two pins, thereby make two conductor wires realize being connected with switch module 1, controller 2 judges by R7, the voltage value on the GPIO after the R8 partial pressure, thereby calculate the voltage value of learning first wiring end, C1 provides sufficient working power supply for controller work and ensures that first wiring end short-term electroless time controller can continue work, controller 4 controls the bright and the going out of backlight 12 and pilot lamp 11 through the voltage and the PWM signal of gathering first wiring end 2.
Where GND denotes the battery negative pole, X denotes that the switch is not connected in the air, PWM denotes an active PWM signal, V denotes that the column heading is selected, V1 denotes an approximate 1/2 battery voltage, V2 denotes an approximate 2/3 battery voltage, and V3 denotes an approximate battery voltage.
Claims (4)
1. The utility model provides an automobile switch circuit, includes switch module, and switch module includes pilot lamp, backlight and conductive button, its characterized in that: the switch module further comprises a first terminal, a second terminal and a controller for detecting the PWM signal and the voltage signal of the first terminal;
the switch module also comprises a backlight lamp circuit, an indicator lamp circuit, a signal transmission line and a key circuit;
one end of the backlight lamp circuit is connected with the first wiring terminal, and the other end of the backlight lamp circuit is connected with the backlight lamp in series and is connected with the controller, so that the control of the backlight lamp is realized;
one end of the indicator light circuit is connected with the first wiring terminal, and the other end of the indicator light circuit is connected with the indicator light in series and is connected with the controller, so that the indicator light is controlled;
one end of the signal transmission line is connected with the first wiring terminal, and the other end of the signal transmission line is connected with the controller, so that the acquisition of PWM signals and voltage signals is realized;
one end of the key circuit is connected with the first wiring terminal, the other end of the key circuit is connected with the conductive key in series and is grounded, and the second wiring terminal is grounded.
2. The automotive switching circuit of claim 1 wherein: the controller comprises an HV0 pin, an HV1 pin, a VBAT pin, a GPIO pin and a GND pin, one end of the backlight lamp is electrically connected with a first wiring end, the other end of the backlight lamp is electrically connected with the HV0 pin, one end of the indicator lamp is electrically connected with the first wiring end, the other end of the indicator lamp is electrically connected with the HV1 pin, the controller further comprises a diode D1, a resistor R7, a resistor R8 and a capacitor C1, one end of the diode D1 is connected with the first wiring end, the other end of the diode D1 is connected with the VBAT pin, one end of the resistor R7 is connected with the first wiring end, the other end of the resistor R8 is connected with the GPIO pin, the other end of the resistor R8 is connected with the GND pin, one end of the capacitor C1 is connected with the GND pin, and the other end of the capacitor C1 is connected with the VBAT pin.
3. The automotive switching circuit according to claim 1 or 2, characterized in that: the LED lamp also comprises a resistor R5, wherein the resistor R5 is connected with the indicator lamp in series.
4. The automotive switching circuit of claim 3 wherein: the LED backlight lamp also comprises a resistor R6, wherein the resistor R6 is connected with the backlight lamp in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222748445.0U CN218213852U (en) | 2022-10-18 | 2022-10-18 | Automobile switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222748445.0U CN218213852U (en) | 2022-10-18 | 2022-10-18 | Automobile switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218213852U true CN218213852U (en) | 2023-01-03 |
Family
ID=84641797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222748445.0U Active CN218213852U (en) | 2022-10-18 | 2022-10-18 | Automobile switch circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218213852U (en) |
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2022
- 2022-10-18 CN CN202222748445.0U patent/CN218213852U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 289 and 291, Binhai Second Road, Wenzhou Economic and Technological Development Zone, Wenzhou, Zhejiang 325000 Patentee after: Zhejiang Changjiang Automobile Electronics Co.,Ltd. Address before: No. 289 and 291, Binhai Second Road, Wenzhou Economic and Technological Development Zone, Wenzhou, Zhejiang 325000 Patentee before: WENZHOU CHANGJIANG AUTOMOBILE ELECTRONIC SYSTEM Co.,Ltd. |