Key switch control mainboard

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By designing a button switch control motherboard that combines voltage-regulated power supply modules, main control modules, etc., the existing button switches are solved, and convenient operation is achieved with a touch-sensitive control, which improves user experience and aesthetics. .

CN222531865UActive Publication Date: 2025-02-25FOSHAN MEIBAOSHUN ELECTRONIC TECH CO LTD

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Patent Information

Application Number: CN202421237158.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-06-03
Publication Date: 2025-02-25
Estimated Expiration: 2034-06-03

AI Technical Summary

Technical Problem

The existing key switch needs to be pressed before sending a control signal, which is inconvenient to operate.

Method used

A button switch control motherboard is designed, and through the combination of voltage-regulating power supply module, main control module, monochrome light strip-end load module, multi-color light strip-end load module, and defogging and high-power control module, it can realize touch through light touch. Functional control can be achieved by the panel.

Benefits of technology

It realizes the convenience of operation, controls functions with just a touch, saves space and is durable, adapts to modern life needs, conforms to today's home decoration trends, and improves user experience and overall aesthetics.

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Abstract

The utility model discloses a key switch control mainboard, which relates to the field of switches, and comprises a voltage-stabilizing power supply module used for supplying 5V voltage and serving as a power supply; the main control module is used for realizing backlight control through two keys; the working states of the single-color lamp strip end load module, the multi-color lamp strip end load module and the demisting and high-power reserving module are determined; the single-color lamp strip end load module is used for receiving the control of the main control module and realizing the control of a single-color lamp strip end; the multi-color lamp strip end load module is used for receiving the control of the main control module and realizing the control of a multi-color lamp strip end; the beneficial effects of the utility model are that the switch is convenient to operate, can realize function control only by lightly touching the touch panel, saves space, is high in durability, is not easy to damage after long-term use, is an intelligent choice which adapts to modern life requirements, and is more in line with the current home decoration trend compared with a traditional switch; and the use experience and the overall attractiveness are improved.

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Description

Technical Field

[0001] The utility model relates to the field of switches, in particular to a key switch control mainboard. Background Art

[0002] In order to change the working state of the equipment, it is often necessary to send a control signal through a key switch, and then drive the working equipment through a single-chip microcomputer to change the working state of the working equipment.

[0003] The existing key switch needs to be pressed before a control signal can be sent, which is not convenient enough and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a key switch control mainboard to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A key switch control mainboard, comprising:

[0007] The voltage-stabilized power supply module is used to supply 5V voltage as the power supply;

[0008] The main control module is used to realize backlight control through two buttons; as well as the working status of the single-color light strip end load module, multi-color light strip end load module, defogger and high-power reserve module;

[0009] The load module at the monochrome light strip end is used to receive control from the main control module to realize the control of the monochrome light strip end;

[0010] The multi-color light strip end load module is used to receive the control of the main control module to realize the control of the multi-color light strip end;

[0011] The defogger and high-power control module is used to receive control from the main control module to achieve defogger control and high-power load control;

[0012] The voltage-stabilized power supply module is connected to the main control module, the defogger and high-power control module, and the main control module is connected to the single-color light strip end load module, the multi-color light strip end load module, the defogger and high-power control module.

[0013] As a further solution of the utility model: the main control module includes a chip U1, the model of the chip U1 is SC92F8371M, the pin 9 of the chip U1 is connected to the load module at the end of the monochrome light strip, the pin 10 of the chip U1 is connected to the load module at the end of the multi-color light strip, the pins 11 and 13 of the chip U1 are connected to the defogger and high-power control module, the pin 7 of the chip U1 is grounded through the capacitors C1 and C2 connected in parallel, the pin 2 of the chip U1 is connected to one end of the resistor R6, and the other end of the resistor R6 is connected to the negative electrode of the light-emitting tube D19, and the light-emitting The positive electrode of tube D19 is connected to a 5V voltage, pin 3 of chip U1 is connected to one end of resistor R17, the other end of resistor R17 is connected to the negative electrode of light-emitting tube D20, the positive electrode of light-emitting tube D20 is connected to a 5V voltage, pin 14 of chip U1 is connected to one end of resistor R4, the other end of resistor R4 is connected to the negative electrode of light-emitting tube D18, the positive electrode of light-emitting tube D18 is connected to a 5V voltage, pin 15 of chip U1 is connected to one end of resistor R3, the other end of resistor R3 is connected to the negative electrode of light-emitting tube D5, and the positive electrode of light-emitting tube D5 is connected to a 5V voltage.

[0014] As a further solution of the utility model: the load module at the monochrome light strip end includes a MOS tube Q4, the G pole of the MOS tube Q4 is connected to the main control module through a resistor R15, the S pole of the MOS tube Q4 is grounded, and the D pole of the MOS tube Q4 is connected to the negative pole LW- of the monochrome light strip end.

[0015] As a further solution of the utility model: the multi-color light strip end load module includes a MOS tube Q2, the G pole of the MOS tube Q2 is connected to the main control module through a resistor R14, the S pole of the MOS tube Q2 is grounded, and the D pole of the MOS tube Q2 is connected to the negative pole LY- of the multi-color light strip end.

[0016] As a further solution of the utility model: the defogger and high-power control module includes a MOS tube Q3 and an optical coupler U4. The G pole of the MOS tube Q3 is connected to the main control module through a resistor R11, the S pole of the MOS tube Q3 is grounded, and the D pole of the MOS tube Q3 is connected to the negative pole SW- of the defogger. The model of the optical coupler U4 is MOC3063. The first end of the optical coupler U4 is connected to a 5V voltage, the second end of the optical coupler U4 is connected to the main control module through a resistor R5, the fourth end of the optical coupler U4 is connected to the third end of the bidirectional thyristor Q5, the sixth end of the optical coupler U4 is connected to one end of a resistor R40, the other end of the resistor R40 is connected to the first end of the bidirectional thyristor Q5 and one end of the AC power supply, and the second end of the bidirectional thyristor Q5 is connected to the other end of the AC power supply.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the utility model is easy to operate, and function control can be achieved by simply touching the touch panel. It saves space and is highly durable. It is not easy to be damaged after long-term use. It is an intelligent choice that meets the needs of modern life. Compared with traditional switches, it is more in line with current home decoration trends and improves the user experience and overall aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a key switch control motherboard.

[0019] Figure 2 The circuit diagram of a key switch control mainboard. DETAILED DESCRIPTION

[0020] 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, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 , a key switch control mainboard, comprising:

[0022] The voltage-stabilized power supply module is used to supply 5V voltage as the power supply;

[0023] The main control module is used to realize backlight control through two buttons; as well as the working status of the single-color light strip end load module, multi-color light strip end load module, defogger and high-power reserve module;

[0024] The load module at the monochrome light strip end is used to receive control from the main control module to realize the control of the monochrome light strip end;

[0025] The multi-color light strip end load module is used to receive the control of the main control module to realize the control of the multi-color light strip end;

[0026] The defogger and high-power control module is used to receive control from the main control module to achieve defogger control and high-power load control;

[0027] The voltage-stabilized power supply module is connected to the main control module, the defogger and high-power control module, and the main control module is connected to the single-color light strip end load module, the multi-color light strip end load module, the defogger and high-power control module.

[0028] In the specific embodiment: see Figure 2 The voltage-stabilized power supply module introduces a 12V voltage, and after the switching regulator U2, it outputs a stable 5V voltage as the power supply to the subsequent circuit.

[0029] In this example: See Figure 2 The main control module includes a chip U1, the model of the chip U1 is SC92F8371M, the pin 9 of the chip U1 is connected to the load module at the monochrome light strip end, the pin 10 of the chip U1 is connected to the load module at the multi-color light strip end, the pins 11 and 13 of the chip U1 are connected to the defogger and high-power control module, the pin 7 of the chip U1 is grounded through the capacitors C1 and C2 connected in parallel, the pin 2 of the chip U1 is connected to one end of the resistor R6, the other end of the resistor R6 is connected to the negative pole of the light-emitting tube D19, and the positive pole of the light-emitting tube D19 Connect 5V voltage, pin 3 of chip U1 is connected to one end of resistor R17, the other end of resistor R17 is connected to the cathode of light-emitting tube D20, the anode of light-emitting tube D20 is connected to 5V voltage, pin 14 of chip U1 is connected to one end of resistor R4, the other end of resistor R4 is connected to the cathode of light-emitting tube D18, the anode of light-emitting tube D18 is connected to 5V voltage, pin 15 of chip U1 is connected to one end of resistor R3, the other end of resistor R3 is connected to the cathode of light-emitting tube D5, the anode of light-emitting tube D5 is connected to 5V voltage.

[0030] LEDs D5 and D18 are the light sources of the K1 key backlight panel, and LEDs D19 and D20 are the light sources of the K2 key backlight panel. When the control mainboard is powered on, the key backlight panel is in the blue standby state (blue LEDs D5 and D19 are on); in this state, the key backlight panel is clicked (white LEDs D18 and D20 are on, and D5 and D19 are off), and the key backlight panel is in the white on state (the K1 and K2 keys are on to control the light strip load, and the K2 key is on to control the defog load).

[0031] The key backlight sensitivity can be adjusted by replacing capacitor C1 and capacitor C2, or adjusting the capacitance of capacitor C1 and capacitor C2.

[0032] In this example: See Figure 2 The load module at the monochrome light strip end includes a MOS tube Q4, a G pole of the MOS tube Q4 is connected to the main control module through a resistor R15, an S pole of the MOS tube Q4 is grounded, and a D pole of the MOS tube Q4 is connected to the negative pole LW- of the monochrome light strip end.

[0033] Pin 9 of chip U1 outputs a high level, triggering MOS tube Q4 to turn on. The negative pole of the single-color light strip is grounded through MOS tube Q4, and the positive pole of the single-color light strip is connected to the voltage, so that the single-color light strip builds a loop and works with electricity.

[0034] In this example: See Figure 2 The multi-color light strip end load module includes a MOS tube Q2, a G pole of the MOS tube Q2 is connected to the main control module through a resistor R14, an S pole of the MOS tube Q2 is grounded, and a D pole of the MOS tube Q2 is connected to the negative pole LY- of the multi-color light strip end.

[0035] Pin No. 10 of chip U1 outputs a high level, triggering MOS tube Q2 to turn on. The negative pole of the multi-color light strip end is grounded through MOS tube Q2, and the positive pole of the multi-color light strip end is connected to the voltage, so that the multi-color light strip end builds a circuit and works with electricity.

[0036] In this example: See Figure 2 The defogger and high-power control module includes a MOS tube Q3 and an optical coupler U4. The G pole of the MOS tube Q3 is connected to the main control module through a resistor R11, the S pole of the MOS tube Q3 is grounded, and the D pole of the MOS tube Q3 is connected to the negative pole SW- of the defogger. The model of the optical coupler U4 is MOC3063. The first end of the optical coupler U4 is connected to a 5V voltage, the second end of the optical coupler U4 is connected to the main control module through a resistor R5, the fourth end of the optical coupler U4 is connected to the third end of the bidirectional thyristor Q5, the sixth end of the optical coupler U4 is connected to one end of a resistor R40, the other end of the resistor R40 is connected to the first end of the bidirectional thyristor Q5 and one end of the AC power supply, and the second end of the bidirectional thyristor Q5 is connected to the other end of the AC power supply.

[0037] Pin 11 of chip U1 outputs a high level, triggering MOS tube Q3 to turn on. The negative pole of the defogger power supply is grounded through MOS tube Q3, and the positive pole of the defogger power supply is connected to the voltage, so that the circuit where the defogger is located is a loop and it is powered to work.

[0038] Pin 13 of chip U1 outputs a PWM signal to control the light-emitting frequency of the light-emitting diode inside the input side of the optocoupler U4. After receiving the light signal, the photosensor inside the output side of the optocoupler U4 outputs an electrical signal to control the conduction frequency of the bidirectional thyristor Q5. The frequency depends on the duty cycle of the PWM signal to control the operation of the AC high-power device (the two ends of the AC high-power device are respectively connected to the two ends of the AC power supply).

[0039] The working principle of the utility model is: the voltage-stabilized power supply module is used to supply 5V voltage as the power supply; the main control module is used to realize backlight control through two buttons; and the working status of the monochrome light strip end load module, the multi-color light strip end load module, the defogger and high-power reserved module; the monochrome light strip end load module is used to receive the control of the main control module to realize the control of the monochrome light strip end; the multi-color light strip end load module is used to receive the control of the main control module to realize the control of the multi-color light strip end; the defogger and high-power control module is used to receive the control of the main control module to realize the defogger control and the high-power load control.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A key switch control motherboard, characterized in that: The key switch control mainboard includes: The voltage-stabilized power supply module is used to supply 5V voltage as the power supply; The main control module is used to realize backlight control through two buttons; as well as the working status of the single-color light strip end load module, multi-color light strip end load module, defogger and high-power reserve module; The load module at the monochrome light strip end is used to receive the control of the main control module to realize the control of the monochrome light strip end; The multi-color light strip end load module is used to receive the control of the main control module to realize the control of the multi-color light strip end; The defogger and high-power control module is used to receive control from the main control module to achieve defogger control and high-power load control; The voltage-stabilized power supply module is connected to the main control module, the defogger and high-power control module, and the main control module is connected to the single-color light strip end load module, the multi-color light strip end load module, the defogger and high-power control module.

2. The key switch control motherboard according to claim 1, characterized in that: The main control module includes chip U1, the model of chip U1 is SC92F8371M, pin 9 of chip U1 is connected to the load module at the end of the monochrome light strip, pin 10 of chip U1 is connected to the load module at the end of the multi-color light strip, pins 11 and 13 of chip U1 are connected to the defogger and high-power control module, pin 7 of chip U1 is grounded through capacitors C1 and C2 connected in parallel, pin 2 of chip U1 is connected to one end of resistor R6, the other end of resistor R6 is connected to the negative pole of light-emitting tube D19, and the positive pole of light-emitting tube D19 is connected to the ground. Connect 5V voltage, pin 3 of chip U1 is connected to one end of resistor R17, the other end of resistor R17 is connected to the cathode of light-emitting tube D20, the anode of light-emitting tube D20 is connected to 5V voltage, pin 14 of chip U1 is connected to one end of resistor R4, the other end of resistor R4 is connected to the cathode of light-emitting tube D18, the anode of light-emitting tube D18 is connected to 5V voltage, pin 15 of chip U1 is connected to one end of resistor R3, the other end of resistor R3 is connected to the cathode of light-emitting tube D5, the anode of light-emitting tube D5 is connected to 5V voltage.

3. The key switch control mainboard according to claim 2, characterized in that: The load module at the monochrome light strip end includes a MOS tube Q4, a G pole of the MOS tube Q4 is connected to the main control module through a resistor R15, an S pole of the MOS tube Q4 is grounded, and a D pole of the MOS tube Q4 is connected to the negative pole LW- of the monochrome light strip end.

4. The key switch control mainboard according to claim 2, characterized in that: The multi-color light strip end load module includes a MOS tube Q2, a G pole of the MOS tube Q2 is connected to the main control module through a resistor R14, an S pole of the MOS tube Q2 is grounded, and a D pole of the MOS tube Q2 is connected to the negative pole LY- of the multi-color light strip end.

5. The key switch control mainboard according to claim 2, characterized in that: The defogger and high-power control module includes a MOS tube Q3 and an optical coupler U4. The G pole of the MOS tube Q3 is connected to the main control module through a resistor R11, the S pole of the MOS tube Q3 is grounded, and the D pole of the MOS tube Q3 is connected to the negative pole SW- of the defogger. The model of the optical coupler U4 is MOC3063. The first end of the optical coupler U4 is connected to a 5V voltage, the second end of the optical coupler U4 is connected to the main control module through a resistor R5, the fourth end of the optical coupler U4 is connected to the third end of the bidirectional thyristor Q5, the sixth end of the optical coupler U4 is connected to one end of the resistor R40, the other end of the resistor R40 is connected to the first end of the bidirectional thyristor Q5 and one end of the AC power supply, and the second end of the bidirectional thyristor Q5 is connected to the other end of the AC power supply.