CN220490916U - Kettle voltage detection circuit - Google Patents
Kettle voltage detection circuit Download PDFInfo
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- CN220490916U CN220490916U CN202321787892.5U CN202321787892U CN220490916U CN 220490916 U CN220490916 U CN 220490916U CN 202321787892 U CN202321787892 U CN 202321787892U CN 220490916 U CN220490916 U CN 220490916U
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 16
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 239000010703 silicon Substances 0.000 claims description 16
- 101100365087 Arabidopsis thaliana SCRA gene Proteins 0.000 claims description 14
- 101150105073 SCR1 gene Proteins 0.000 claims description 14
- 101100134054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) NTG1 gene Proteins 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000009835 boiling Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
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Abstract
The utility model relates to a kettle voltage detection circuit, a serial communication port, including main control module, voltage acquisition module and heating module, voltage acquisition module's output signal end with main control module's first signal end is connected, heating module's controlled end with main control module's first control end is connected, gathers voltage value input to main control module through voltage acquisition module, heats by main control module control heating module again, when different voltage value, starts different operating modes to enable the hydroenergy in the kettle to heat reliably, be satisfied in the demand of boiling water in different areas, and can prolong the life of kettle betterly.
Description
[ field of technology ]
The application relates to the technical field of intelligent household appliances, in particular to a kettle voltage detection circuit.
[ background Art ]
Along with the progress of technology, portable electric kettles enter daily life of people, however, due to the fact that the voltage is unstable in the areas with remote parts in China and the phenomenon that different power supply voltage standards exist in foreign power transmission circuits, different phenomena of boiling water are easy to occur in the areas with low voltage, and the situation that the electric kettles are burnt easily occurs in the areas with high voltage standards, different standards are needed to be adopted in the use of the electric kettles in different areas, and the electric kettles are very inconvenient for users walking outside all the year round.
[ utility model ]
In order to solve the problem that the electric kettle cannot reliably boil water due to unstable power supply in remote areas in China or different power supply voltage standards in foreign countries, the utility model acquires a voltage value through the voltage acquisition module, inputs the voltage value into the main control module and then controls the heating module to heat.
The application proposes the following scheme:
the utility model provides a kettle voltage detection circuit, includes main control module, voltage acquisition module and heating module, voltage acquisition module's output signal end with main control module's first signal end is connected, heating module's controlled end with main control module's first control end is connected.
The voltage acquisition module comprises a resistor R17 and a diode D5, wherein a resistor R19 is connected between the second end of the resistor R17 and the ground, a capacitor C6 is connected between the common node of the resistor R17 and the resistor R19 and the ground, the common node of the resistor R17 and the resistor R19 is connected with the positive electrode of the diode D5, a resistor R18 is connected between the common node of the resistor R17 and the resistor R19 and the first signal end of the main control module, and a capacitor C5 is connected between the first signal end of the main control module and the ground.
The heating module comprises the triode Q3, the silicon controlled rectifier SCR1 and the heating wire, wherein a resistor R21 is connected between a base electrode of the triode Q3 and a first control end of the main control module, R23 is connected between the base electrode and an emitting electrode of the triode Q3, the emitting electrode of the triode Q3 is grounded, a collector electrode of the triode Q3 is connected with a control electrode of the silicon controlled rectifier SCR1, and a second main electrode of the silicon controlled rectifier SCR1 is connected with the heating wire.
The utility model provides a kettle voltage detection circuit, still includes power module, power module includes protection cell, rectifying element, zero crossing unit and step-down unit, protection cell includes fuse F1 and resistance R2, fuse F1's first end is connected with the live wire, fuse F1's second end has piezo-resistor VR1 with the indirect of zero line, fuse F1's second end has electric capacity CX1 with the indirect of zero line, fuse F1's second end with resistance R2's first end is connected, resistance R2's second end with the indirect of zero line has resistance R4.
The rectifying unit comprises a diode D1 and an inductor L1, wherein the anode of the diode D1 is connected with the second end of the fuse F1, a diode D2 is connected between the cathode of the diode D1 and the first end of the inductor L1, and a capacitor EC1 is connected between the second end of the inductor L1 and the zero line.
The water kettle voltage detection circuit comprises the triode Q1, the resistor R6, the resistor R7 and the resistor R9, wherein the first end of the resistor R6 is connected with the cathode of the diode D1, the second end of the resistor R6 is connected with the first end of the resistor R9, the resistor R10 is connected between the second end of the resistor R9 and the base electrode of the triode Q1, the resistor R11 is connected between the base electrode and the emitter electrode of the triode Q1, the emitter electrode of the triode Q1 is grounded, the collector electrode of the triode Q1 is connected with the first end of the resistor R7, the resistor R8 is connected between the collector electrode of the triode Q1 and the third signal end of the main control module, and the capacitor C4 is connected between the third signal end of the main control module and the ground.
The voltage reducing unit comprises a voltage reducing driving chip U1, a diode D3, a diode D4 and an inductor L2, wherein a capacitor C1 is connected between a chip power end of the voltage reducing driving chip U1 and the chip ground, the chip power end of the voltage reducing driving chip U1 is connected with the cathode of the diode D3, the anode of the diode D3 is grounded, the chip power end of the voltage reducing driving chip U1 is connected with the cathode of the diode D4, the chip power end of the voltage reducing driving chip U1 is connected with the first end of the inductor L2, the second end of the inductor L2 is a direct current power output end, more than one capacitor is connected between the direct current power output end and the ground, and a resistor R3 is connected between the direct current power output end and the ground.
According to the embodiment of the utility model, the voltage value is acquired by the voltage acquisition module and is input to the main control module, and the main control module controls the heating module to heat, so that different working modes are started when different voltage values are obtained, water in the kettle can be stably and reliably heated, the requirement of boiling water in different areas is met, and the service life of the kettle can be prolonged well.
[ description of the drawings ]
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a kettle voltage detection circuit according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a heating module according to an embodiment of the utility model;
fig. 3 is a schematic diagram of a power module and a voltage detection module according to an embodiment of the present utility model.
[ detailed description ] of the utility model
Referring to fig. 1 to 3, the present embodiment provides a kettle voltage detection circuit, which includes a main control module, a voltage acquisition module 2 and a heating module 3, wherein an output signal end of the voltage acquisition module 2 is connected with a first signal end of the main control module, and a controlled end of the heating module 3 is connected with a first control end of the main control module.
According to the embodiment, the voltage value is acquired by the voltage acquisition module 2 and is input to the main control module, the main control module controls the heating module 3 to heat, and when different voltage values are obtained, different working modes are started, so that water in the water kettle can be heated stably and reliably, the requirements of boiling water in different areas are met, and the service life of the water kettle can be prolonged well.
As a preferable scheme, but not particularly limited, the chip model of the main control module is TM55FE8275.
As a preferred solution, but not particularly limited, the voltage acquisition module 2 includes a resistor R17 and a diode D5, a resistor R19 is connected between the second end of the resistor R17 and ground, a capacitor C6 is connected between the common node of the resistor R17 and the resistor R19 and ground, the common node of the resistor R17 and the resistor R19 is connected with the positive electrode of the diode D5, a resistor R18 is connected between the common node of the resistor R17 and the resistor R19 and the first signal end of the main control module, and a capacitor C5 is connected between the first signal end of the main control module and ground.
The voltage acquisition module 2 of the embodiment transmits the voltage to the main control module for detection through the voltage division of the resistor R17 and the resistor R19, and a plurality of capacitors are further arranged in the module for filtering the voltage signals so as to ensure that the output voltage signal value is stable and accurate, and the circuit is more reliable.
As a preferred solution, but not particularly limited, the heating module 3 includes a triode Q3, a silicon controlled rectifier SCR1, and a heating filament, where a resistor R21 is connected between a base electrode of the triode Q3 and a first control end of the main control module, an R23 is connected between the base electrode and an emitter electrode of the triode Q3, the emitter electrode of the triode Q3 is grounded, a collector electrode of the triode Q3 is connected with a control electrode of the silicon controlled rectifier SCR1, and a second main electrode of the silicon controlled rectifier SCR1 is connected with the heating filament.
In order to better control heating of the electric kettle, the heating wire is controlled by adopting the silicon controlled rectifier SCR1, the silicon controlled rectifier SCR1 is a bidirectional silicon controlled rectifier, and the bidirectional silicon controlled rectifier is adopted because the current which is conducted by the controlled end of the silicon controlled rectifier SCR1 is alternating current, and the requirements of the electric power running direction can be met by controlling the current through the bidirectional silicon controlled rectifier.
As a preferred solution, but not particularly limited, the power module 5 further includes a protection unit 51, a rectifying unit 52, a zero crossing unit 53, and a voltage dropping unit 54, where the protection unit 51 includes a fuse F1 and a resistor R2, a first end of the fuse F1 is connected with a live wire, a varistor VR1 is connected between a second end of the fuse F1 and a zero line, a capacitor CX1 is connected between the second end of the fuse F1 and the zero line, a second end of the fuse F1 is connected with a first end of the resistor R2, and a resistor R4 is connected between the second end of the resistor R2 and the zero line.
According to the embodiment, the power supply module is divided, the power supply part of the circuit is protected by the setting protection unit 51, damage to the electric kettle caused by overvoltage or overcurrent can be avoided, the service life of the electric kettle is longer, and the working reliability is higher.
As a preferred embodiment, but not particularly limited thereto, the rectifying unit 52 includes a diode D1 and an inductor L1, wherein an anode of the diode D1 is connected to the second terminal of the fuse F1, a diode D2 is connected between a cathode of the diode D1 and the first terminal of the inductor L1, and a capacitor EC1 is connected between the second terminal of the inductor L1 and the zero line.
According to the embodiment, the half-wave rectifying circuit is formed by connecting the front diode and the rear diode in series, the circuit is simple, the conduction control mode is simple, the work is stable and reliable, the pulsation noise of the direct-current power supply is filtered off at the rear stage of rectification through the LC filter, the output voltage of the direct-current power supply achieves the effect of smoothness and stability, and the power supply module can output a stable and reliable power supply.
As a preferred solution but not particularly limited, the zero crossing unit 53 includes a transistor Q1, a resistor R6, a resistor R7, and a resistor R9, where a first end of the resistor R6 is connected to a negative electrode of the diode D1, a second end of the resistor R6 is connected to a first end of the resistor R9, a resistor R10 is connected between a second end of the resistor R9 and a base of the transistor Q1, a resistor R11 is connected between a base and an emitter of the transistor Q1, an emitter of the transistor Q1 is grounded, a collector of the transistor Q1 is connected to the first end of the resistor R7, a resistor R8 is connected between a collector of the transistor Q1 and a third signal end of the main control module, and a capacitor C4 is connected between the third signal end of the main control module and ground.
The zero crossing signal of the embodiment provides a regular square wave through the zero crossing circuit, and the SCR1 switch takes the mains supply zero crossing signal as a reference, so that the motor is stably and reliably controlled, and the control process is more stable.
As a preferred solution but not particularly limited, the step-down unit 54 includes a step-down driving chip U1, a diode D3, a diode D4, and an inductor L2, where a capacitor C1 is connected between a chip power end of the step-down driving chip U1 and the chip ground, a chip power end of the step-down driving chip U1 is connected with a negative electrode of the diode D3, an anode of the diode D3 is grounded, a chip power end of the step-down driving chip U1 is connected with a negative electrode of the diode D4, a chip power end of the step-down driving chip U1 is connected with a first end of the inductor L2, a second end of the inductor L2 is a dc power output end, one or more capacitors are connected between the dc power output end and the ground, and a resistor R3 is connected between the dc power output end and the ground.
In the embodiment, the step-down driving chip U1 steps down the power supply after the rectification and filtration to ensure that a stable direct current power supply is output, so that the working process of the circuit is stable and reliable, and the direct current power supply is collinear with one of a live wire and a zero wire, so that the silicon controlled rectifier SCR1 can work stably and reliably.
The above description of one embodiment provided in connection with a particular disclosure is not intended to limit the practice of this application to that particular disclosure. Any approximation, or substitution of techniques for the methods, structures, etc. of the present application or for the purposes of making a number of technological deductions or substitutions based on the concepts of the present application should be considered as the scope of protection of the present application.
Claims (7)
1. The utility model provides a kettle voltage detection circuit which characterized in that, includes main control module, voltage acquisition module (2) and heating module (3), the output signal end of voltage acquisition module (2) with main control module's first signal end is connected, the controlled end of heating module (3) with main control module's first control end is connected.
2. The kettle voltage detection circuit according to claim 1, wherein the voltage acquisition module (2) comprises a resistor R17 and a diode D5, a resistor R19 is connected between the second end of the resistor R17 and the ground, a capacitor C6 is connected between the common node of the resistor R17 and the resistor R19 and the ground, the common node of the resistor R17 and the resistor R19 is connected with the positive electrode of the diode D5, a resistor R18 is connected between the common node of the resistor R17 and the resistor R19 and the first signal end of the main control module, and a capacitor C5 is connected between the first signal end of the main control module and the ground.
3. The kettle voltage detection circuit according to claim 1, wherein the heating module (3) comprises a triode Q3, a silicon controlled rectifier SCR1 and a heating wire, a resistor R21 is connected between a base electrode of the triode Q3 and a first control end of the main control module, a resistor R23 is connected between the base electrode and an emitter electrode of the triode Q3, the emitter electrode of the triode Q3 is grounded, a collector electrode of the triode Q3 is connected with a control electrode of the silicon controlled rectifier SCR1, and a second main electrode of the silicon controlled rectifier SCR1 is connected with the heating wire.
4. The kettle voltage detection circuit according to claim 1, further comprising a power supply module (5), wherein the power supply module (5) comprises a protection unit (51), a rectifying unit (52), a zero crossing unit (53) and a voltage dropping unit (54), the protection unit (51) comprises a fuse F1 and a resistor R2, a first end of the fuse F1 is connected with a live wire, a varistor VR1 is connected between a second end of the fuse F1 and a zero line, a capacitor CX1 is connected between the second end of the fuse F1 and the zero line, a second end of the fuse F1 is connected with a first end of the resistor R2, and a resistor R4 is connected between the second end of the resistor R2 and the zero line.
5. The kettle voltage detection circuit as claimed in claim 4, wherein the rectifying unit (52) comprises a diode D1 and an inductor L1, wherein an anode of the diode D1 is connected to the second end of the fuse F1, a cathode of the diode D1 is connected to the first end of the inductor L1, and a capacitor EC1 is connected to the second end of the inductor L1 and the zero line.
6. The kettle voltage detection circuit according to claim 5, wherein the zero crossing unit (53) comprises a triode Q1, a resistor R6, a resistor R7 and a resistor R9, a first end of the resistor R6 is connected with a negative electrode of the diode D1, a second end of the resistor R6 is connected with a first end of the resistor R9, a resistor R10 is connected between a second end of the resistor R9 and a base electrode of the triode Q1, a resistor R11 is connected between the base electrode and an emitter electrode of the triode Q1, the emitter electrode of the triode Q1 is grounded, a collector electrode of the triode Q1 is connected with the first end of the resistor R7, a resistor R8 is connected between the collector electrode of the triode Q1 and a third signal end of the master control module, and a capacitor C4 is connected between the third signal end of the master control module and ground.
7. The kettle voltage detection circuit according to claim 4, wherein the step-down unit (54) comprises a step-down driving chip U1, a diode D3, a diode D4, and an inductor L2, wherein a capacitor C1 is connected between a chip power supply end of the step-down driving chip U1 and a chip ground, a chip power supply end of the step-down driving chip U1 is connected to a negative electrode of the diode D3, an anode of the diode D3 is grounded, a chip power supply end of the step-down driving chip U1 is connected to a negative electrode of the diode D4, a chip power supply end of the step-down driving chip U1 is connected to a first end of the inductor L2, a second end of the inductor L2 is a dc power supply output end, more than one capacitor is connected between the dc power supply output end and the ground, and a resistor R3 is connected between the dc power supply output end and the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321787892.5U CN220490916U (en) | 2023-07-07 | 2023-07-07 | Kettle voltage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321787892.5U CN220490916U (en) | 2023-07-07 | 2023-07-07 | Kettle voltage detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220490916U true CN220490916U (en) | 2024-02-13 |
Family
ID=89824674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321787892.5U Active CN220490916U (en) | 2023-07-07 | 2023-07-07 | Kettle voltage detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220490916U (en) |
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2023
- 2023-07-07 CN CN202321787892.5U patent/CN220490916U/en active Active
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