A remote control linkage range hood control panel

Abstract

The utility model discloses a remote-controlled linkage range hood control board, comprising an MCU microprocessor, a step-down circuit, a communication interface for communicating with a range hood power supply board, an RF linkage module for receiving a remote control or an induction cooker signal, a button and LED light display module, and a digital tube display circuit, wherein the communication interface is connected to one end of the step-down circuit, and the other end of the step-down circuit is connected to the MCU microprocessor. The utility model can enable the range hood to have two working modes through the cooperation of the MCU microprocessor, the step-down circuit, the communication interface, the RF linkage module, the button and LED light display module, and the digital tube display circuit, one of which is manual control so that the digital tube displays the wind speed gear of the range hood, and the other is to use a remote control or an induction cooker to send a radio signal so that the range hood works and the digital tube displays the wind speed gear, thereby adding a function of being able to use the range hood remotely.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a range hood control panel with remote control linkage. Background Art

[0002] The range hood is one of the must-have household appliances. It is an electrical appliance used to remove kitchen fumes and odors. It is usually installed on the wall or ceiling of the kitchen, and exhausts fumes and cooking odors to the outside through the exhaust pipe to keep the kitchen air fresh and the environment hygienic. The range hood control panel is the main control component of the range hood, and is an electronic control device used to control the operation of the range hood.

[0003] Currently, the range hood control boards on the market are mainly composed of a main control chip responsible for logic operations and control signals, an input interface for users to interact with the control board, a sensor interface for detecting the working status and environmental information of the range hood, a driver interface for controlling the operation of fans, lighting and other equipment, and a power management interface for voltage stabilization and overcurrent protection.

[0004] However, the above-mentioned range hood control panel is usually manually controlled when in use, so that the digital tube displays the wind speed level of the range hood, which is not convenient for remote use of the range hood and brings inconvenience to the use of the range hood. Therefore, we need to propose a remote control-linked range hood control panel to solve the above-mentioned problems, so that it can add the function of remote use of the range hood on the basis of the original manual control. Utility Model Content

[0005] The utility model aims to provide a remote-controlled range hood control panel, which can add a remote control function to the range hood on the basis of the original manual control, so as to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a remote control linkage range hood control panel, comprising an MCU microprocessor, a step-down circuit, a communication interface for communicating with a range hood power board, an RF linkage module for receiving a remote control or an induction cooker signal, a button and LED light display module, and a digital tube display circuit, wherein the communication interface is connected to one end of the step-down circuit, the other end of the step-down circuit is connected to the MCU microprocessor, the RF linkage module and the button and LED light display module are both connected to the MCU microprocessor, and the button and LED light display module is also connected to the digital tube display circuit;

[0007] The RF linkage module includes an RF chip U3 for receiving radio frequency signals, two pins of the RF chip U3 are connected to resistors R17, one end of the resistor R17 is connected to a transistor Q2, the emitter of the transistor Q2 is connected to a resistor R16, one end of the resistor R16 is connected to a capacitor C2, and one end of the capacitor C2 is connected to the VCC pin of the RF chip U3.

[0008] Preferably, the MCU microprocessor includes a main control chip U1, the connecting end of the emitter of the transistor Q2 and the resistor R16 is connected to the eleventh pin of the main control chip U1, and the sixteenth pin and the thirty-first pin of the main control chip U1 are both grounded.

[0009] Preferably, the digital tube display circuit includes a digital tube U4, the G pin of the digital tube U4 is connected to a resistor R6, the D pin of the digital tube U4 is connected to a resistor R5, the A pin of the digital tube U4 is connected to a resistor R4, and the C pin of the digital tube U4 is connected to a resistor R9. The resistance values ​​of the resistors R4, R5, R6 and R9 are all set to 330Ω, and one end of the resistors R4, R5, R6 and R9 are all connected to the main control chip U1.

[0010] Preferably, the button and LED light display module includes a button circuit and a plurality of LED light circuits, the button circuit includes a switch S2 and a resistor R3 arranged in series, one end of the switch S2 is grounded, and one end of the resistor R3 is connected to the twenty-six pins of the main control chip U1;

[0011] The LED lamp circuit includes two LED lamps arranged in parallel, the connecting ends of the two LED lamps are connected to a first resistor with a resistance of 330Ω, one end of the first resistor is connected to a second resistor with a resistance of 330Ω, one end of the second resistor is connected to a control switch, one end of the control switch is grounded, and the connecting ends of the first resistor and the second resistor are connected to the main control chip U1.

[0012] Preferably, the communication interface includes a connector CON1 and a connector CON2 connected to the main control chip, one pin of the connector CON1 is connected to a resistor R13, one end of the resistor R13 is connected to a transistor Q1, the emitter of the transistor Q1 is connected to a resistor R14 with one end grounded, two pins of the connector CON1 are connected to a resistor R23 and a transistor Q3, the base of the transistor Q3 is connected to a resistor R22, one end of the resistor R22 and one end of the resistor R23 are both connected to the VCC terminal, a transistor Q4 is connected between the resistor R22 and the base of the transistor Q3, the base of the transistor Q4 is connected to a resistor R21 and a resistor R20, one end of the resistor R21 is connected to the twenty-ninth pin of the main control chip U1, one end of the resistor R20 and the emitter of the transistor Q4 and the emitter of the transistor Q3 are all grounded, three pins of the connector CON1 are connected to a capacitor C6, and the capacitor C6 and four pins of the connector CON1 are all grounded.

[0013] Preferably, the step-down circuit includes a step-down chip U2, one pin of the step-down chip U2 is connected to a capacitor C5, one end of the capacitor C5 and two pins of the step-down chip U2 are both grounded, three pins of the step-down chip U2 are connected to the other end of the capacitor C5, and five pins of the step-down chip U2 are connected to a capacitor C4 having one end connected to a 3.3V voltage, and the other end of the capacitor C4 is grounded.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can make the range hood have two working modes through the cooperation of MCU microprocessor, step-down circuit, communication interface, RF linkage module, button and LED light display module and digital tube display circuit. One is manual control, so that the digital tube displays the wind speed gear of the range hood, and the other is to use a remote control or an induction cooker to send a radio signal to make the range hood work and the digital tube displays the wind speed gear, thereby adding the function of remote use of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a system block diagram of the utility model;

[0017] Figure 2 This is the circuit diagram of the MCU microprocessor of the utility model;

[0018] Figure 3 This is a circuit diagram of a digital tube display circuit of the utility model;

[0019] Figure 4 This is the circuit diagram of the button and LED light display module of the utility model;

[0020] Figure 5 This is the communication interface circuit diagram of the utility model;

[0021] Figure 6 The circuit diagram of the step-down circuit of the utility model;

[0022] Figure 7 This is the circuit diagram of the RF linkage module of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-7 The utility model provides a technical solution: a remote control linkage range hood control board, including an MCU microprocessor, a step-down circuit, a communication interface for communicating with a range hood power board, an RF linkage module for receiving a remote control or an induction cooker signal, a button and LED light display module, and a digital tube display circuit, the communication interface is connected to one end of the step-down circuit, the other end of the step-down circuit is connected to the MCU microprocessor, the RF linkage module and the button and LED light display module are both connected to the MCU microprocessor, and the button and LED light display module is also connected to the digital tube display circuit;

[0025] like Figure 7 As shown, the RF linkage module includes an RF chip U3 for receiving radio frequency signals, two pins of the RF chip U3 are connected to a resistor R17, one end of the resistor R17 is connected to a transistor Q2, the emitter of the transistor Q2 is connected to a resistor R16, one end of the resistor R16 is connected to a capacitor C2, and one end of the capacitor C2 is connected to the VCC pin of the RF chip U3;

[0026] like Figure 2 As shown, the MCU microprocessor includes a main control chip U1, the connecting end of the emitter of the transistor Q2 and the resistor R16 is connected to the eleventh pin of the main control chip U1, and the sixteenth pin and the thirty-first pin of the main control chip U1 are both grounded.

[0027] like Figure 3As shown, the digital tube display circuit includes a digital tube U4, the G pin of the digital tube U4 is connected to a resistor R6, the D pin of the digital tube U4 is connected to a resistor R5, the A pin of the digital tube U4 is connected to a resistor R4, and the C pin of the digital tube U4 is connected to a resistor R9. The resistance values ​​of the resistors R4, R5, R6 and R9 are all set to 330Ω, and one end of the resistors R4, R5, R6 and R9 are all connected to the main control chip U1, and the wind speed gear of the range hood is displayed through the digital tube U4.

[0028] like Figure 4 As shown, the button and LED light display module includes a button circuit and multiple LED light circuits, the button circuit includes a switch S2 and a resistor R3 arranged in series, one end of the switch S2 is grounded, and one end of the resistor R3 is connected to the twenty-sixth pin of the main control chip U1;

[0029] The LED lamp circuit includes two LED lamps arranged in parallel (as shown in the figure, D1 and D2 are the first group, D3 and D4 are the second group, D5 and D6 are the third group, and D7 and D8 are the fourth group), the connecting end of the two LED lamps is connected to a first resistor with a resistance of 330Ω (as shown in the figure, R1 is the first resistor of the first group, R10 is the first resistor of the second group, R7 is the first resistor of the third group, and R12 is the first resistor of the fourth group), one end of the first resistor is connected to a second resistor with a resistance of 330Ω (as shown in the figure, R2 is the second resistor of the first group, R11 is the second resistor of the second group, R8 is the second resistor of the third group, and R13 is the second resistor of the fourth group), one end of the second resistor is connected to a control switch (as shown in the figure, S1 is the control switch of the first group, S3 is the control switch of the second group, S4 is the control switch of the third group, and S5 is the control switch of the fourth group), one end of the control switch is grounded, and the connecting end of the first resistor and the second resistor is connected to the main control chip U1.

[0030] like Figure 5As shown, the communication interface includes a connector CON1 and a connector CON2 connected to the main control chip, one pin of the connector CON1 is connected to a resistor R13, one end of the resistor R13 is connected to a transistor Q1, the emitter of the transistor Q1 is connected to a resistor R14 with one end grounded, the second pin of the connector CON1 is connected to a resistor R23 and a transistor Q3, the base of the transistor Q3 is connected to a resistor R22, one end of the resistor R22 and one end of the resistor R23 are both connected to the VCC terminal, and the resistor R22 is connected to the VCC terminal. The base of the transistor Q3 is connected with the transistor Q4, the base of the transistor Q4 is connected with the resistor R21 and the resistor R20, one end of the resistor R21 is connected with the twenty-ninth pin of the main control chip U1, one end of the resistor R20 and the emitter of the transistor Q4 and the emitter of the transistor Q3 are all grounded, the three pins of the connector CON1 are connected with the capacitor C6, the capacitor C6 and the four pins of the connector CON1 are all grounded, and the range hood control board is conveniently connected to the range hood power board through the communication interface.

[0031] like Figure 6 As shown, the buck circuit includes a buck chip U2, one pin of the buck chip U2 is connected to a capacitor C5, one end of the capacitor C5 and the second pin of the buck chip U2 are grounded, the third pin of the buck chip U2 is connected to the other end of the capacitor C5, the fifth pin of the buck chip U2 is connected to a capacitor C4 with one end connected to a 3.3V voltage, and the other end of the capacitor C4 is grounded. The buck chip U2 is used to reduce the voltage to a working voltage suitable for the MCU microprocessor, so that the MCU microprocessor works in a good circuit and the service life of the MCU microprocessor is increased.

[0032] When used manually, the range hood control board is connected to the power board through the communication interface, and the voltage is reduced to a suitable working voltage for the MCU microprocessor through the step-down chip U2. Then, the button and the LED light display module are pressed to control the MCU microprocessor to work, and the MCU microprocessor sends a command to make the digital tube U4 start to display the wind speed gear of the range hood;

[0033] When used in remote control, a radio signal is sent through the remote control or induction cooker. After receiving the signal from the remote control or induction cooker, the RF linkage module sends it to the MCU microcontroller. The MCU microcontroller controls the LED light circuit and the digital tube U4 for display, so that the range hood works and the digital tube displays the wind speed gear, adding the function of remote use of the range hood.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A remote control linkage range hood control panel, characterized in that: It includes an MCU microprocessor, a step-down circuit, a communication interface for communicating with a range hood power board, an RF linkage module for receiving a remote control or an induction cooker signal, a button and LED light display module, and a digital tube display circuit, wherein the communication interface is connected to one end of the step-down circuit, the other end of the step-down circuit is connected to the MCU microprocessor, the RF linkage module and the button and LED light display module are both connected to the MCU microprocessor, and the button and LED light display module is also connected to the digital tube display circuit; The RF linkage module includes an RF chip U3 for receiving radio frequency signals, two pins of the RF chip U3 are connected to resistors R17, one end of the resistor R17 is connected to a transistor Q2, the emitter of the transistor Q2 is connected to a resistor R16, one end of the resistor R16 is connected to a capacitor C2, and one end of the capacitor C2 is connected to the VCC pin of the RF chip U3.

2. The remote control linkage range hood control panel according to claim 1, characterized in that: The MCU microprocessor includes a main control chip U1, the emitter of the transistor Q2 and the connecting end of the resistor R16 are connected to the eleventh pin of the main control chip U1, and the sixteenth pin and the thirty-first pin of the main control chip U1 are both grounded.

3. The remote control linkage range hood control panel according to claim 2, characterized in that: The digital tube display circuit includes a digital tube U4, a G pin of the digital tube U4 is connected to a resistor R6, a D pin of the digital tube U4 is connected to a resistor R5, an A pin of the digital tube U4 is connected to a resistor R4, and a C pin of the digital tube U4 is connected to a resistor R9. The resistance values ​​of the resistors R4, R5, R6 and R9 are all set to 330Ω, and one end of the resistors R4, R5, R6 and R9 are all connected to the main control chip U1.

4. The remote control linkage range hood control panel according to claim 3, characterized in that: The button and LED light display module includes a button circuit and multiple LED light circuits, the button circuit includes a switch S2 and a resistor R3 arranged in series, one end of the switch S2 is grounded, and one end of the resistor R3 is connected to the twenty-six pins of the main control chip U1; The LED lamp circuit includes two LED lamps arranged in parallel, the connecting ends of the two LED lamps are connected to a first resistor with a resistance of 330Ω, one end of the first resistor is connected to a second resistor with a resistance of 330Ω, one end of the second resistor is connected to a control switch, one end of the control switch is grounded, and the connecting ends of the first resistor and the second resistor are connected to the main control chip U1.

5. The remote control linkage range hood control panel according to claim 4, characterized in that: The communication interface includes a connector CON1 and a connector CON2 connected to the main control chip, one pin of the connector CON1 is connected to a resistor R13, one end of the resistor R13 is connected to a transistor Q1, the emitter of the transistor Q1 is connected to a resistor R14 with one end grounded, two pins of the connector CON1 are connected to a resistor R23 and a transistor Q3, the base of the transistor Q3 is connected to a resistor R22, one end of the resistor R22 and one end of the resistor R23 are both connected to the VCC terminal, a transistor Q4 is connected between the resistor R22 and the base of the transistor Q3, the base of the transistor Q4 is connected to a resistor R21 and a resistor R20, one end of the resistor R21 is connected to the twenty-ninth pin of the main control chip U1, one end of the resistor R20 and the emitter of the transistor Q4 and the emitter of the transistor Q3 are all grounded, three pins of the connector CON1 are connected to a capacitor C6, and the capacitor C6 and four pins of the connector CON1 are all grounded.

6. The remote control linkage range hood control panel according to claim 5, characterized in that: The step-down circuit includes a step-down chip U2, one pin of the step-down chip U2 is connected to a capacitor C5, one end of the capacitor C5 and two pins of the step-down chip U2 are both grounded, three pins of the step-down chip U2 are connected to the other end of the capacitor C5, and five pins of the step-down chip U2 are connected to a capacitor C4 with one end connected to a 3.3V voltage, and the other end of the capacitor C4 is grounded.

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