CN219263325U - Low-power-consumption kitchen range control system - Google Patents

Abstract

The application relates to a low-power consumption cooking utensils control system, include: the micro-processing unit is provided with a power supply end; a battery coupled to the power supply terminal; a switching unit disposed between the battery and the power supply terminal, having an enable terminal coupled to the battery; the gas plug valve comprises a valve body, a valve rod and a micro switch arranged on the valve body for sensing the rotation of the valve rod, wherein the micro switch is arranged between the battery and the enabling end. The switch unit is arranged between the battery and the micro-processing unit. When the fuel gas plug valve is used, after the micro switch is turned on, the switch unit is started through the enabling end, and the battery supplies power for the micro processing unit. When the micro switch is idle, the micro switch is turned off to avoid electric energy loss in an idle state and reduce power consumption.

Description

Low-power-consumption kitchen range control system

Technical Field

The application relates to the field of stoves, in particular to a low-power-consumption stove control system.

Background

The kitchen range based on the combustible gas is mainly realized by conveying the combustible gas and controlling the igniter, and in the increasingly developed modern society, the kitchen range plays more roles of intellectualization and diversification, and the automatic turn-off function under the abnormal state is derived. Due to the historic habits and the environmental harshness of kitchen equipment, the power source used by cooktops is typically a dry cell. The kitchen range with the intelligent function is high in energy consumption and frequent in battery replacement, and the problem to be solved is urgent.

Disclosure of Invention

Based on the above, it is necessary to provide a low power consumption stove control system.

The application provides a low-power consumption cooking utensils control system, include:

the micro-processing unit is provided with a power supply end;

a battery coupled to the power supply terminal;

a switching unit disposed between the battery and the power supply terminal, having an enable terminal coupled to the battery;

the gas plug valve comprises a valve body, a valve rod and a micro switch arranged on the valve body for sensing the rotation of the valve rod, wherein the micro switch is arranged between the battery and the enabling end.

The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.

Optionally, the micro-processing unit has a first signal input end and a first signal output end, and the cooker control system includes:

the flameout detection unit is coupled to the first signal input end;

and the electromagnetic valve control unit is coupled to the first signal output end.

Optionally, the microprocessor unit has a second signal output terminal coupled to the enable terminal.

Optionally, the micro-processing unit has a third signal output, and the cooktop control system includes an ignition unit coupled to the third signal output.

Optionally, the switching unit includes a first switching tube, the first switching tube having:

a first input pole coupled to the battery;

a first output electrode coupled to the power supply terminal;

the first driving pole is coupled to the enabling terminal.

Optionally, the switching unit includes a triode having:

a collector coupled to the first drive electrode;

an emitter electrode grounded;

and a base coupled to the enable terminal.

Optionally, the switch unit and the power supply end are provided with a boost module.

Optionally, a filter circuit is coupled between the switch unit and the boost module.

Optionally, a first resistor is arranged between the micro switch and the enabling end, and a second resistor is arranged between the second signal output end and the enabling end.

The low-power-consumption kitchen range control system has the following technical effects:

the switching unit is disposed between the battery and the microprocessor unit. When the fuel gas plug valve is used, after the micro switch is turned on, the switch unit is started through the enabling end, and the battery supplies power for the micro processing unit. When the micro switch is idle, the micro switch is turned off to avoid electric energy loss in an idle state and reduce power consumption.

Drawings

FIG. 1 is a block diagram of a low power cooktop control system in one embodiment of the application;

FIG. 2 is a schematic diagram of a part of a control system of a low power consumption kitchen range according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a part of a module structure of a low power consumption kitchen range control system according to an embodiment of the present application;

FIG. 4 is a schematic circuit diagram of a switch unit according to an embodiment of the present application;

reference numerals in the drawings are described as follows:

100. a microprocessor unit; 111. a first signal input terminal; 121. a first signal output terminal; 122. a second signal output terminal; 123. a third signal output terminal;

200. a battery; 300. a switching unit; 400. a gas plug valve; 410. a micro-switch;

500. a flameout detection unit; 600. a solenoid valve control unit; 700. an ignition unit.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It will be understood that when an element is referred to as being "coupled" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In this application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number, order of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed but may include other elements not expressly listed or inherent to such article or apparatus.

The kitchen range control system needs to meet diversified requirements such as automatic shutdown, dry combustion method detection shutdown and the like, and in an idle state, the overall system consumes higher power, so that the service life of a battery is influenced.

Referring to fig. 1, in one embodiment of the present application, a low power consumption stove control system is provided, which includes a micro-processing unit 100, a battery 200, a switching unit 300, and a gas plug valve 400. Wherein the microprocessor unit 100 has a power supply terminal VCC; the battery 200 is coupled to the power supply terminal VCC; the switching unit 300 is disposed between the battery 200 and the power supply terminal VCC, and has an enable terminal EN coupled to the battery 200. The gas plug valve 400 includes a valve body, a valve stem, and a micro switch 410 provided on the valve body to sense rotation of the valve stem, the micro switch 410 being provided between the battery 200 and the enable end EN.

The micro-processing unit 100 may be, for example, a single chip microcomputer, the battery 200 is typically a dry battery, the switch unit 300 is isolated between the battery 200 and the micro-processing unit 100, and the enable end EN controls the on/off of the switch unit 300. The specific structure of the valve body, the valve rod, the micro switch 410, etc. of the gas plug valve 400 will not be described herein. The gas plug valve 400 is disposed on the stove, and when in use, the gas plug valve 400 rotates to turn on the micro switch 410, triggering the enable end EN of the switch unit 300, and the switch unit 300 works. When the micro switch 410 is idle, the micro switch 410 is turned off, the enable end EN of the switch unit 300 is controlled to be turned off, and the switch unit 300 isolates the battery 200, so as to reduce energy loss. The power consumption is reduced while the power is supplied to the microprocessor unit 100 at the time of use.

Referring to fig. 1 and 2, the micro processing unit 100 has a first signal input terminal 111, and first and third signal output terminals 121 and 123 in addition to a power supply terminal VCC. The cooktop control system also includes a flameout detection unit 500, a solenoid valve control unit 600, and an ignition unit 700. Wherein, the flameout detection unit 500 is coupled to the first signal input terminal 111; the solenoid valve control unit 600 is coupled to the first signal output terminal 121; the ignition unit 700 is coupled to the third signal output terminal 123.

In use, the gas plug valve 400 is manually rotated to open, and the solenoid valve is opened to begin delivering gas. After the micro-processing unit 100 is powered on, the ignition needle is controlled to ignite the combustible gas through the third signal output terminal 123. The control by the micro-processing unit 100 can further secure safety as compared with the manner of manually controlling the ignition needle.

The kitchen range control system enters a normal operation state, and the micro-processing unit 100 enables the electromagnetic valve control unit 600 to control and open the valve of the electromagnetic valve through the first signal output end 121 so as to maintain gas delivery. In this process, the flameout detection unit 500 continuously detects the working state, and the flameout detection unit 500 is implemented, for example, by thermocouple detection, and when flame extinction and temperature abnormality occur, the generated electromotive force information is fed back to the micro-processing unit 100, and the micro-processing unit 100 controls the electromagnetic valve control unit 600 to close the electromagnetic valve through the first signal output end 121, so that the use safety is ensured.

Referring to fig. 1 and 3, in one embodiment, the micro processing unit 100 further has a second signal output terminal 122, and the enable terminal EN of the switching unit 300 is coupled to the second signal output terminal 122. As can be seen from the above description, in the rotary open state of the gas plug valve 400, the micro switch 410 is continuously turned on, and the switch unit 300 maintains the on state. However, when the micro switch 410 is turned off, the switching unit 300 is rapidly powered off. In this embodiment, the micro-processing unit 100 may delay turning off the switch unit 300 (for example, delay for two to three seconds) through the second signal output terminal 122, so that the micro-processing unit 100 performs a preset control operation after the micro-switch 410 is turned off. The micro processing unit 100 detects a signal that the micro switch 410 is turned off, and may be implemented by detecting an electric signal that the micro switch 410 is turned on or off.

Further, the cooking appliance control system further comprises a communication unit and a fan control unit, and the micro-processing unit 100, the communication unit and the fan control unit are sequentially coupled. The communication unit may for example be a bluetooth communication with a communication input and a communication output. The communication input end is coupled to the micro-processing unit 100, and the communication output end is coupled to the fan control unit for controlling the start and stop of the fan (range hood). In actual use, the micro-processing unit 100 detects the on condition of the micro-switch 410, and controls the fan to start through the communication output terminal. The micro-processing unit 100 detects that the micro-switch 410 is turned off and/or the flame is extinguished, and controls the fan to stop.

Referring to fig. 4, the switching unit 300 includes a first switching tube Q16, and the first switching tube Q16 has a first input pole S, a first output pole D, and a first driving pole G. Wherein the first input electrode S is coupled to the battery 200 (the positive electrode VBAT of the battery 200 in the drawing); the first output electrode D is coupled to the power supply end VCC of the switch unit; the first driving pole G is coupled to the enable terminal EN of the switch unit 300. The first switching tube Q16 may be, for example, a PMOS tube, and the model is CJ3401, the first driving electrode G is a gate of the MOS tube, and the turn-on voltage is 1.3V.

Further, the switching unit 300 includes a transistor Q19, for example, BC817, whose collector c is coupled to the first driving pole G; the emitter e is grounded; the base b is coupled to the enable terminal EN. In this embodiment, the stove includes a LEFT stove and a RIGHT stove, which are respectively provided with an independent gas plug valve and a corresponding micro SWITCH, the input ends of the two micro switches are coupled to the battery, and the output ends are respectively coupled to the switch_left terminal and the switch_right terminal in the figure. For a gas plug valve of the left stove, a first resistor R68 is arranged between the micro switch and the enabling end EN; for the gas plug valve of the right stove, a resistor R38 is arranged between the micro switch and the enabling end EN. A second resistor R67 is disposed between the second signal output terminal 122 (i.e., mcu_out_power in the drawing) and the enable terminal EN.

When the micro-switch is used, the micro-switch is turned on, the triode Q19 and the first switch tube Q16 are sequentially turned on, the conduction of the switch unit is realized, and the battery supplies power to the whole system. After the micro switch is turned off, the second signal output terminal 122 turns on the switching unit with a delay.

Specifically, the switching unit 300 and the power supply terminal VCC are provided with a boosting module U3. The boost module U3 has an input terminal LX, an output terminal VOUT, and a ground terminal GND. The input terminal LX is coupled to the first output terminal D, and the output terminal VOUT is coupled to the power supply terminal VCC, so that the voltage reaches 3.3V. The model of the boost module U3 may be, for example, XT1681B32M. A filter circuit, specifically an LC filter circuit, is coupled between the switch unit 300 and the boost module U3, and is formed by an inductor L5 and a capacitor C13. The capacitors C28 and C27 are filter capacitors coupled to the positive pole VBAT of the battery and the power supply terminal VCC, respectively. The capacitance of the capacitor C28 may be, for example, 0.1uF.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.

Claims (8)

1. Low-power consumption cooking utensils control system, its characterized in that includes:

the micro-processing unit is provided with a power supply end, a first signal input end and a first signal output end;

a battery coupled to the power supply terminal;

a switching unit disposed between the battery and the power supply terminal, having an enable terminal coupled to the battery;

the gas plug valve comprises a valve body, a valve rod and a micro switch arranged on the valve body for sensing the rotation of the valve rod, wherein the micro switch is arranged between the battery and the enabling end;

the flameout detection unit is coupled to the first signal input end;

and the electromagnetic valve control unit is coupled to the first signal output end.

2. The cooktop control system of claim 1, wherein the micro-processing unit has a second signal output coupled to the enable.

3. The cooktop control system of claim 1, wherein the microprocessor unit has a third signal output, the cooktop control system including an ignition unit coupled to the third signal output.

4. The cooktop control system of claim 1, wherein the switching unit includes a first switching tube having:

a first input pole coupled to the battery;

a first output electrode coupled to the power supply terminal;

the first driving pole is coupled to the enabling terminal.

5. The cooktop control system of claim 4, wherein the switching unit includes a transistor having:

a collector coupled to the first drive electrode;

an emitter electrode grounded;

and a base coupled to the enable terminal.

6. The cooktop control system of claim 1, wherein the switching unit and the power supply end are provided with a boost module.

7. The cooktop control system of claim 6, wherein a filter circuit is coupled between the switching unit and the boost module.

8. The cooktop control system of claim 2, wherein a first resistor is disposed between the micro switch and the enable end, and a second resistor is disposed between the second signal output end and the enable end.

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