Seat ring heating control circuit applied to intelligent closestool and intelligent closestool

Abstract

The utility model discloses a seat ring heating control circuit applied to an intelligent closestool and the intelligent closestool, and belongs to the technical field of intelligent closestools. The technical problem that chip control is cancelled and an analog circuit is adopted for temperature control is solved. The main points of the technical scheme are that the temperature acquisition circuit comprises a temperature acquisition interface used for being connected with a temperature sensor and a temperature acquisition interface used for being connected with a seat ring heater, and further comprises a voltage source, a resistor R3, a resistor R2, a resistor R5, a resistor R10, a resistor R1, a resistor R4, a capacitor C4, a voltage-regulator tube U1, a photoelectric coupler OP1 and a silicon controlled rectifier T1; when a temperature sensor is connected, signal input of the photoelectric coupler OP1 and signal output of the photoelectric coupler OP are completed through the sampling resistor, work of the silicon controlled rectifier T1 is controlled in real time, the constant temperature setting requirement of adopting the resistor R4 in advance is met, and the constant temperature control circuit has the advantages that cost is reduced, and work reliability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of smart toilets, and in particular to a seat heating control circuit applied to a smart toilet and the smart toilet. Background Art

[0002] At present, the seats on smart toilets all have heating functions, and the heating wire needs to be powered by a power supply, and a controller working current is required to achieve the degree of heating. Generally, the power supply needs to be powered by AC power, and the seat heater needs to be externally current controlled to achieve constant temperature heating. In order to achieve this control, power chips or microprocessors are generally used directly, but this is relatively costly, and the chip also needs to be configured with a response program.

[0003] It can be seen from this that a new circuit needs to be designed to avoid the limitations caused by the chip. Utility Model Content

[0004] In view of the above-mentioned shortcomings (problems) of the prior art, in order to effectively achieve seat temperature control without chip control and facilitate use and maintenance, the present application provides a seat heating control circuit for a smart toilet and a smart toilet.

[0005] To achieve the above objectives and other related objectives, this application adopts the following technical solutions:

[0006] A seat heating control circuit for a smart toilet, comprising a temperature acquisition interface for connecting a temperature sensor and a heater interface for connecting a seat heater, and also comprising a voltage source, a resistor R3, a resistor R2, a resistor R5, a resistor R10, a resistor R1, a resistor R4, a capacitor C4, a voltage regulator U1, a photocoupler OP1, and a thyristor T1;

[0007] The voltage source is connected to one end of the resistor R3, one end of the resistor R2, and the anode of the photoelectric coupler OP1, the other end of the resistor R3 is connected to one end of the resistor R10, one end of the temperature acquisition interface, and one end of the capacitor C4, the other end of the resistor R10 is connected to the control end of the voltage regulator U1, the other end of the temperature acquisition interface, the anode of the voltage regulator U1 and the other end of the capacitor C4 are grounded together, the cathode of the voltage regulator U1 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the cathode of the photoelectric coupler OP1 and the other end of the resistor R2, one end of the output side of the photoelectric coupler OP1 is connected to one end of the resistor R1, the other end of the output side of the photoelectric coupler OP1 is connected to the control end of the thyristor T1 and one end of the resistor R4, the other end of the resistor R1 is connected to one end of the heater interface and one end of the thyristor T1, the other end of the resistor R4 is connected to the other end of the thyristor T1 and is used to connect the live wire, and the other end of the heater interface is used to connect the neutral wire.

[0008] Preferably, a seat ring heating switch is connected in parallel to the anode and cathode of the photoelectric coupler OP1.

[0009] Preferably, the voltage source uses a 12V voltage.

[0010] In addition, a smart toilet is also provided, comprising the above-mentioned seat heating control circuit.

[0011] In summary, the present application includes at least one of the following beneficial technical effects:

[0012] 1. The single chip microcomputer is eliminated to control the temperature. The analog circuit is adopted. Through the voltage stabilizing transistor U1, according to the set sampling resistor R3, the temperature is collected in combination with the temperature sensor, and the photoelectric coupler OP1 and the thyristor T1 are adjusted in real time to achieve the constant temperature corresponding to the set sampling resistor R3, thereby realizing the constant temperature heating of the seat ring; 2. It is easier to repair and replace components, and the cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a circuit schematic diagram of an embodiment of the present application.

[0014] Description of main reference numerals:

[0015] 100, temperature acquisition interface; 200, heater interface; 300, live wire; 400, neutral wire; 500, seat heating switch. DETAILED DESCRIPTION

[0016] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0017] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0018] The specific implementation methods of the present application will be further described below in conjunction with the accompanying drawings.

[0019] Example:

[0020] The embodiment of the present application discloses a seat heating control circuit for a smart toilet, including a temperature acquisition interface 100 for connecting a temperature sensor and a heater interface 200 for connecting a seat heater, and also includes a voltage source, a resistor R3, a resistor R2, a resistor R5, a resistor R10, a resistor R1, a resistor R4, a capacitor C4, a voltage regulator U1, a photocoupler OP1, and a thyristor T1.

[0021] The temperature acquisition interface 100 is connected to a temperature probe, such as a temperature thermocouple, a temperature sensor, etc., and can be plugged in and disassembled through this interface. Similarly, the heater interface 200 can also be disassembled, and the heater is a heating wire or a thermal resistor device. The above devices are existing, and the functions are realized through their circuit connection.

[0022] The voltage source is connected to one end of the resistor R3, one end of the resistor R2, and the anode of the photoelectric coupler OP1, the other end of the resistor R3 is connected to one end of the resistor R10, one end of the temperature acquisition interface 100, and one end of the capacitor C4, the other end of the resistor R10 is connected to the control end of the voltage regulator U1, the other end of the temperature acquisition interface 100, the anode of the voltage regulator U1 and the other end of the capacitor C4 are grounded together, the cathode of the voltage regulator U1 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the cathode of the photoelectric coupler OP1 and the other end of the resistor R2, one end of the output side of the photoelectric coupler OP1 is connected to one end of the resistor R1, the other end of the output side of the photoelectric coupler OP1 is connected to the control end of the thyristor T1 and one end of the resistor R4, the other end of the resistor R1 is connected to one end of the heater interface 200 and one end of the thyristor T1, the other end of the resistor R4 is connected to the other end of the thyristor T1 and is used to connect the live wire 300, and the other end of the heater interface 200 is used to connect the neutral wire 400.

[0023] Specifically, the anode and cathode of the photocoupler OP1 are connected in parallel with the seat ring heating switch 500. The voltage source uses a 12V voltage.

[0024] In this solution, when the S1 seat ring heating switch 500 is disconnected, the single chip microcomputer is eliminated to control the temperature, and an analog circuit is adopted. Through the voltage regulator transistor U1, according to the set sampling resistor R3, the temperature is collected in combination with the temperature sensor, and the photoelectric coupler OP1 and the thyristor T1 are adjusted in real time to achieve a constant temperature corresponding to the set sampling resistor R3, thereby realizing constant temperature heating of the seat ring; it is relatively easy to inspect and replace components, and the cost is relatively low.

[0025] The voltage regulator U1 is TL431, which can more accurately control the voltage on the input side of the photocoupler OP1. The photocoupler is MOC3063. The thyristor is BCR1AM-12.

[0026] Embodiment 2:

[0027] This embodiment provides a smart toilet, including the seat heating control circuit of the above-mentioned embodiment 1, so that the maintenance and manufacturing costs of the smart toilet are reduced.

[0028] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A seat heating control circuit for a smart toilet, comprising a temperature acquisition interface for connecting a temperature sensor and a temperature acquisition interface for connecting a seat heater, characterized in that: It also includes a voltage source, a resistor R3, a resistor R2, a resistor R5, a resistor R10, a resistor R1, a resistor R4, a capacitor C4, a voltage regulator U1, a photocoupler OP1, and a thyristor T1; The voltage source is connected to one end of the resistor R3, one end of the resistor R2, and the anode of the photoelectric coupler OP1, the other end of the resistor R3 is connected to one end of the resistor R10, one end of the temperature acquisition interface, and one end of the capacitor C4, the other end of the resistor R10 is connected to the control end of the voltage regulator U1, the other end of the temperature acquisition interface, the anode of the voltage regulator U1 and the other end of the capacitor C4 are grounded together, the cathode of the voltage regulator U1 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the cathode of the photoelectric coupler OP1 and the other end of the resistor R2, one end of the output side of the photoelectric coupler OP1 is connected to one end of the resistor R1, the other end of the output side of the photoelectric coupler OP1 is connected to the control end of the thyristor T1 and one end of the resistor R4, the other end of the resistor R1 is connected to one end of the heater interface and one end of the thyristor T1, the other end of the resistor R4 is connected to the other end of the thyristor T1 and is used to connect the live wire, and the other end of the heater interface is used to connect the neutral wire.

2. A seat heating control circuit for a smart toilet according to claim 1, characterized in that: The anode and cathode of the photoelectric coupler OP1 are connected in parallel with a seat ring heating switch.

3. A seat heating control circuit for a smart toilet according to claim 1, characterized in that: The voltage source adopts 12V voltage.

4. A smart toilet, characterized in that: The invention comprises a seat heating control circuit as claimed in any one of claims 1 to 3.

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