CN217356973U - High-reliability stove valve closing circuit and gas stove - Google Patents
High-reliability stove valve closing circuit and gas stove Download PDFInfo
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- CN217356973U CN217356973U CN202221275611.3U CN202221275611U CN217356973U CN 217356973 U CN217356973 U CN 217356973U CN 202221275611 U CN202221275611 U CN 202221275611U CN 217356973 U CN217356973 U CN 217356973U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
A high-reliability stove valve closing circuit and a gas stove are provided. The high-reliability stove valve closing circuit comprises a control module, a first switch module, a second switch module, a third switch module, a fourth switch module, a first charge-discharge module, a second charge-discharge module, a solenoid valve and a thermocouple; the direct-current power supply is electrically connected with a first end of the first switch module, a second end of the first switch module is electrically connected with a first end of the second switch module, the first charge-discharge module is electrically connected with a second end of the first switch module, and a second end of the second switch module is electrically connected with a forward power supply end of the electromagnetic valve; the direct-current power supply is electrically connected with the first end of the third switch module, the second end of the third switch module is electrically connected with the first end of the fourth switch module, the second charge-discharge module is electrically connected with the second end of the third switch module, and the second end of the fourth switch module is electrically connected with the forward power supply end of the electromagnetic valve. The utility model discloses can promote the reliability of cooking utensils function of regularly turning off fire.
Description
Technical Field
The utility model belongs to the technical field of the gas-cooker technique and specifically relates to a valve circuit and gas-cooker are closed to high reliable cooking utensils.
Background
For a cooking range with a timed fire-closing function, a valve-closing method commonly used at present generally applies a current opposite to a current generated by a thermocouple to a solenoid valve, so as to cancel the current of the thermocouple to close the solenoid valve. The current is usually supplied by a battery, and the current is also supplied by the power supply of the control chip. For the battery to provide the reverse current, when the electric energy of the battery is reduced to a certain degree, the reverse current generated by the battery becomes small, and the valve cannot be closed. For the reverse current provided by the power supply of the control chip, the power supply voltage of the control chip is pulled down when the valve is closed, so that the chip is reset, and the normal work of the control chip is influenced. Therefore, the existing valve closing methods have defects, and the reliability of the valve closing methods in operation needs to be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a valve circuit and gas-cooker are closed to high reliable cooking utensils can promote the reliability that cooking utensils were regularly closed fire function.
In order to solve the above problem, the utility model adopts the following technical scheme:
according to a first aspect of the present invention, an embodiment of the present invention provides a highly reliable stove valve closing circuit, including a control module, a first switch module, a second switch module, a third switch module, a fourth switch module, a first charge-discharge module, a second charge-discharge module, a solenoid valve, and a thermocouple; the first switch module, the second switch module, the third switch module and the fourth switch module respectively comprise a first end, a second end and a control end, and the control ends of the first switch module, the second switch module, the third switch module and the fourth switch module are electrically connected with the control module; the direct-current power supply is electrically connected with a first end of the first switch module, a second end of the first switch module is electrically connected with a first end of the second switch module, the first charge-discharge module is electrically connected with a second end of the first switch module, and a second end of the second switch module is electrically connected with a forward power supply end of the electromagnetic valve; the direct-current power supply is electrically connected with the first end of the third switch module, the second end of the third switch module is electrically connected with the first end of the fourth switch module, the second charge-discharge module is electrically connected with the second end of the third switch module, and the second end of the fourth switch module is electrically connected with the forward power supply end of the electromagnetic valve; two ends of the thermocouple are respectively and electrically connected with a positive power supply end and a negative power supply end of the electromagnetic valve, and the negative power supply end of the electromagnetic valve is grounded.
In some embodiments, the first switching module comprises a first transistor, a first resistor, a second resistor, and a third resistor; the emitter of the first triode is the first end of the first switch module, and two ends of the first resistor are respectively and electrically connected with the emitter and the base of the first triode; one end of the second resistor is electrically connected with the base electrode of the first triode, and the other end of the second resistor is the control end of the first switch module; one end of the third resistor is electrically connected with a collector electrode of the first triode, and the other end of the third resistor is a second end of the first switch module.
In some embodiments, the third switching module comprises a second transistor, a fourth resistor, a fifth resistor, and a sixth resistor; the emitter of the second triode is the first end of the third switch module, and two ends of the fourth resistor are respectively and electrically connected with the emitter and the base of the second triode; one end of the fifth resistor is electrically connected with the base electrode of the second triode, and the other end of the fifth resistor is the control end of the third switch module; one end of the sixth resistor is electrically connected with the collector electrode of the second triode, and the other end of the sixth resistor is the second end of the third switch module.
In some embodiments, the second switch module includes a first MOS transistor, a seventh resistor, and an eighth resistor; the source electrode of the first MOS tube is the first end of the second switch module, and the drain electrode of the first MOS tube is the second end of the second switch module; two ends of the seventh resistor are respectively and electrically connected with the source electrode and the grid electrode of the first MOS tube, one end of the eighth resistor is electrically connected with the source electrode of the first MOS tube, and the other end of the eighth resistor is the control end of the second switch module.
In some embodiments, the fourth switching module comprises a second MOS transistor, a ninth resistor and a tenth resistor; the source electrode of the second MOS tube is the first end of the fourth switch module, and the drain electrode of the second MOS tube is the second end of the fourth switch module; the two ends of the ninth resistor are respectively and electrically connected with the source electrode and the grid electrode of the second MOS tube, one end of the tenth resistor is electrically connected with the source electrode of the second MOS tube, and the other end of the tenth resistor is a control end of the fourth switch module.
In some embodiments, the first charge-discharge module includes a first electrolytic capacitor, an anode of the first electrolytic capacitor is electrically connected to the second end of the first switch module, and a cathode of the first electrolytic capacitor is grounded.
In some embodiments, the second charge-discharge module includes a second electrolytic capacitor, a positive electrode of the second electrolytic capacitor is electrically connected to the second end of the third switch module, and a negative electrode of the second electrolytic capacitor is grounded.
According to the utility model discloses a second aspect, the embodiment of the utility model provides a gas-cooker, including the arbitrary embodiment of above-mentioned first aspect highly reliable cooking utensils close valve circuit.
The utility model discloses following beneficial effect has at least: when the valve closing time is about to reach, the control module firstly controls the first switch module and the third switch module to be conducted, and the direct-current power supply charges the first charge-discharge module and the second charge-discharge module; when the valve closing time is reached, the control module controls the second switch module and the fourth switch module to be sequentially conducted at intervals, and the first charge-discharge module and the second charge-discharge module sequentially discharge to the electromagnetic valve at intervals, so that the time of effective current flowing to the electromagnetic valve is prolonged, sufficient reverse current is guaranteed to offset the current of the thermocouple, the electromagnetic valve is closed, and the reliability of the timing fire closing function of the cooker is improved.
Drawings
Fig. 1 is a schematic diagram of a circuit module of a high-reliability stove valve closing circuit according to an embodiment of the present invention;
fig. 2 is a specific circuit schematic diagram of a high-reliability stove valve-closing circuit according to an embodiment of the present invention after a control module is removed.
Wherein the reference numerals are: the control module 10, the first switch module 21, the second switch module 22, the third switch module 23, the fourth switch module 24, the first charge-discharge module 31, the second charge-discharge module 32, the solenoid valve 40, and the thermocouple 50.
Detailed Description
The present disclosure provides the following description with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the disclosure as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but such details are to be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
The terms and words used in the following description and claims are not limited to the literal meanings, but are used by the inventors to enable a clear and consistent understanding of the disclosure. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.
The terms "having," "may have," "including," or "may include" used in various embodiments of the present disclosure indicate the presence of the respective functions, operations, elements, etc., disclosed, but do not limit additional one or more functions, operations, elements, etc. Furthermore, it is to be understood that the terms "comprises" or "comprising," when used in various embodiments of the present disclosure, are intended to specify the presence of stated features, integers, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, or groups thereof.
It will be understood that when an element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element or intervening elements (e.g., a third element) may be present.
An embodiment of the utility model provides a high reliable cooking utensils close valve circuit, as shown in fig. 1, it includes control module 10, first switch module 21, second switch module 22, third switch module 23, fourth switch module 24, first charge-discharge module 31, second charge-discharge module 32, solenoid valve 40 and thermocouple 50. The first switch module 21, the second switch module 22, the third switch module 23 and the fourth switch module 24 each include a first terminal, a second terminal and a control terminal, and when different control signals are input to the control terminals, a circuit between the corresponding first terminal and the corresponding second terminal can be turned on or off to implement a switching function. The control terminals of the first switch module 21, the second switch module 22, the third switch module 23 and the fourth switch module 24 are electrically connected to the control module 10, so that the control module 10 can send out corresponding control signals to control the first switch module 21, the second switch module 22, the third switch module 23 and the fourth switch module 24 to be turned on or off. The dc power source may charge the first charge-discharge module 31 and the second charge-discharge module 32, and the first charge-discharge module 31 and the second charge-discharge module 32 may discharge electricity after being fully charged.
The direct current power source VCC is electrically connected with a first end of the first switch module 21, a second end of the first switch module 21 is electrically connected with a first end of the second switch module 22, the first charge-discharge module 31 is electrically connected with a second end of the first switch module 21, and a second end of the second switch module 22 is electrically connected with a forward power supply end of the electromagnetic valve 40; the direct current power supply VCC is electrically connected with a first end of the third switch module 23, a second end of the third switch module 23 is electrically connected with a first end of the fourth switch module 24, the second charge-discharge module 32 is electrically connected with a second end of the third switch module 23, and a second end of the fourth switch module 24 is electrically connected with a forward power supply end of the electromagnetic valve 40; both ends of the thermocouple 50 are electrically connected to a positive power supply terminal and a negative power supply terminal of the electromagnetic valve 40, respectively, and the negative power supply terminal of the electromagnetic valve 40 is grounded.
After the user starts the timed fire-off function, when the valve-off time is about to reach (specifically, the preset time before the valve-off time is reached, and the duration of the preset time can be determined by a person skilled in the art according to the actual charging time of the first charge-discharge module 31 and the second charge-discharge module 32), the control module 10 first controls the first switch module 21 and the third switch module 23 to be both turned on, and the dc power supply charges the first charge-discharge module 31 and the second charge-discharge module 32; when the valve closing time is reached, the control module 10 may control the second switch module 22 to be turned on, and the first charge-discharge module 31 discharges electricity to the electromagnetic valve 40; when the electric quantity of the first charge-discharge module 31 is about to be used up, the control module 10 may control the fourth switch module 24 to be turned on, and control the second switch module 22 to be turned off, so that the second charge-discharge module 32 continues to discharge electricity to the solenoid valve 40; when the power of the second charge-discharge module 32 is about to be used up, the control module 10 controls the second switch module 22 to be turned on and controls the fourth switch module 24 to be turned off, so that the first charge-discharge module 31 is switched to discharge the electromagnetic valve 40. The second switch module 22 and the fourth switch module 24 are controlled to be conducted at intervals in a circulating mode, so that the first charge-discharge module 31 and the second charge-discharge module 32 sequentially discharge to the electromagnetic valve 40 at intervals, the time of effective current flowing to the electromagnetic valve 40 is prolonged, sufficient reverse current is guaranteed to counteract the current of the thermocouple 50, the electromagnetic valve 40 can be smoothly closed when the valve closing time is up, and the reliability of the timed fire closing function of the cooker is improved.
In some embodiments, as shown in fig. 2, the first switching module includes a first transistor Q1, a first resistor R1, a second resistor R2, and a third resistor R3. The first triode can be an N-type triode, and particularly can be a triode with the model of SS 8550. The emitter of the first triode is the first end of the first switch module, so that the emitter of the first triode is electrically connected with the direct current power supply, and two ends of the first resistor are respectively electrically connected with the emitter and the base of the first triode. One end of the second resistor is electrically connected to the base of the first transistor, and the other end (port CD1) of the second resistor is the control end of the first switch module, so that the other end of the second resistor is electrically connected to the control module. One end of the third resistor is electrically connected with the collector of the first triode, and the other end of the third resistor is the second end of the first switch module, so that the other end of the third resistor is electrically connected with the first ends of the first charge-discharge module and the second switch module respectively.
When the control module outputs a low level, the first triode is conducted, and the direct-current power supply charges the first charge-discharge module through the first triode; when the control module outputs a high level, the first triode is disconnected, and the first charge-discharge module can discharge outwards.
In some embodiments, as shown in fig. 2, the third switching module includes a second transistor Q2, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6. The second triode can be an N-type triode, and particularly can be a triode with the model of SS 8550. The emitter of the second triode is the first end of the third switch module, so that the emitter of the second triode is electrically connected with the direct current power supply, and two ends of the fourth resistor are respectively electrically connected with the emitter and the base of the second triode. One end of the fifth resistor is electrically connected to the base of the second transistor, and the other end (port CD2) of the fifth resistor is the control end of the third switch module, so that the other end of the fifth resistor is electrically connected to the control module. One end of the sixth resistor is electrically connected with the collector of the second triode, and the other end of the sixth resistor is the second end of the third switch module, so that the other end of the sixth resistor is electrically connected with the first ends of the second charge-discharge module and the fourth switch module respectively.
When the control module outputs a low level, the second triode is conducted, and the direct-current power supply charges the second charge-discharge module through the second triode; when the control module outputs a high level, the second triode is disconnected, and the second charge-discharge module can discharge outwards.
In some embodiments, as shown in fig. 2, the second switching module includes a first MOS transistor Q3, a seventh resistor R7, and an eighth resistor R8. The first MOS transistor may be an N-type MOS transistor, for example, a MOS transistor of type AO 3415. The source electrode of the first MOS tube is the first end of the second switch module, so that the source electrode of the first MOS tube is electrically connected with the second end of the first switch module. The drain electrode of the first MOS tube is the second end of the second switch module, so that the drain electrode of the first MOS tube is electrically connected with the forward power supply end of the electromagnetic valve. Two ends of the seventh resistor are electrically connected with the source electrode and the grid electrode of the first MOS transistor respectively, one end of the eighth resistor is electrically connected with the source electrode of the first MOS transistor, and the other end (OFF1 port) of the eighth resistor is the control end of the second switch module, so that the other end of the eighth resistor is electrically connected with the control module.
When the control module outputs a low level, the first MOS tube is conducted, and the first charge-discharge module discharges electricity to the electromagnetic valve through the first MOS tube; when the control module outputs a high level, the first MOS tube is disconnected, and the first charge-discharge module stops discharging to the electromagnetic valve through the first MOS tube.
In some embodiments, as shown in fig. 2, the fourth switching module includes a second MOS transistor Q4, a ninth resistor R9, and a tenth resistor R10. The second MOS transistor may be an N-type MOS transistor, for example, a MOS transistor with model No. AO 3415. The source electrode of the second MOS tube is the first end of the fourth switch module, so that the source electrode of the second MOS tube is electrically connected with the second end of the third switch module. The drain electrode of the second MOS tube is the second end of the fourth switch module, so that the drain electrode of the second MOS tube is electrically connected with the forward power supply end of the electromagnetic valve. The two ends of the ninth resistor are respectively and electrically connected with the source electrode and the grid electrode of the second MOS tube, one end of the tenth resistor is electrically connected with the source electrode of the second MOS tube, and the other end (OFF2 port) of the tenth resistor is the control end of the fourth switch module, so that the other end of the tenth resistor is electrically connected with the control module.
When the control module outputs a low level, the second MOS tube is conducted, and the second charge-discharge module discharges electricity to the electromagnetic valve through the second MOS tube; when the control module outputs a high level, the second MOS tube is disconnected, and the second charge-discharge module stops discharging to the electromagnetic valve through the second MOS tube.
In some embodiments, as shown in fig. 2, the first charge-discharge module includes a first electrolytic capacitor EC1, an anode of the first electrolytic capacitor is electrically connected to the second end of the first switch module, that is, one end of the resistor R3 electrically connected to the first MOS transistor Q3 is electrically connected to the anode of the first electrolytic capacitor, and a cathode of the first electrolytic capacitor is grounded.
In some embodiments, as shown in fig. 2, the second charge-discharge module includes a second electrolytic capacitor EC2, an anode of the second electrolytic capacitor is electrically connected to the second end of the third switch module, that is, one end of the resistor R6 electrically connected to the second MOS transistor Q4 is electrically connected to the anode of the second electrolytic capacitor, and a cathode of the second electrolytic capacitor is grounded.
In some embodiments, the control module 10 may include a single-chip microcomputer chip.
An embodiment of the utility model provides a gas stove, including the high reliable cooking utensils of any above-mentioned embodiment close valve circuit. For specific description of the high-reliability stove valve closing circuit, reference may be made to the above embodiments, which are not described herein again.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.
Claims (8)
1. A high-reliability stove valve closing circuit is characterized in that: the intelligent control system comprises a control module, a first switch module, a second switch module, a third switch module, a fourth switch module, a first charge-discharge module, a second charge-discharge module, a solenoid valve and a thermocouple; the first switch module, the second switch module, the third switch module and the fourth switch module respectively comprise a first end, a second end and a control end, and the control ends of the first switch module, the second switch module, the third switch module and the fourth switch module are electrically connected with the control module; the direct-current power supply is electrically connected with a first end of the first switch module, a second end of the first switch module is electrically connected with a first end of the second switch module, the first charge-discharge module is electrically connected with a second end of the first switch module, and a second end of the second switch module is electrically connected with a forward power supply end of the electromagnetic valve; the direct-current power supply is electrically connected with the first end of the third switch module, the second end of the third switch module is electrically connected with the first end of the fourth switch module, the second charge-discharge module is electrically connected with the second end of the third switch module, and the second end of the fourth switch module is electrically connected with the forward power supply end of the electromagnetic valve; two ends of the thermocouple are respectively and electrically connected with a positive power supply end and a negative power supply end of the electromagnetic valve, and the negative power supply end of the electromagnetic valve is grounded.
2. The high reliability cooktop valve-closing circuit of claim 1, wherein: the first switch module comprises a first triode, a first resistor, a second resistor and a third resistor; the emitter of the first triode is the first end of the first switch module, and two ends of the first resistor are respectively and electrically connected with the emitter and the base of the first triode; one end of the second resistor is electrically connected with the base electrode of the first triode, and the other end of the second resistor is the control end of the first switch module; one end of the third resistor is electrically connected with a collector electrode of the first triode, and the other end of the third resistor is a second end of the first switch module.
3. The high reliability cooktop valve-closing circuit of claim 1, wherein: the third switch module comprises a second triode, a fourth resistor, a fifth resistor and a sixth resistor; the emitter of the second triode is the first end of the third switch module, and the two ends of the fourth resistor are respectively and electrically connected with the emitter and the base of the second triode; one end of the fifth resistor is electrically connected with the base electrode of the second triode, and the other end of the fifth resistor is the control end of the third switch module; one end of the sixth resistor is electrically connected with the collector of the second triode, and the other end of the sixth resistor is the second end of the third switch module.
4. The high reliability cooktop valve-closing circuit of claim 1, wherein: the second switch module comprises a first MOS tube, a seventh resistor and an eighth resistor; the source electrode of the first MOS tube is the first end of the second switch module, and the drain electrode of the first MOS tube is the second end of the second switch module; two ends of the seventh resistor are respectively and electrically connected with the source electrode and the grid electrode of the first MOS tube, one end of the eighth resistor is electrically connected with the source electrode of the first MOS tube, and the other end of the eighth resistor is the control end of the second switch module.
5. The high reliability cooktop valve-closing circuit of claim 1, wherein: the fourth switching module comprises a second MOS transistor, a ninth resistor and a tenth resistor; the source electrode of the second MOS tube is the first end of the fourth switch module, and the drain electrode of the second MOS tube is the second end of the fourth switch module; the two ends of the ninth resistor are respectively and electrically connected with the source electrode and the grid electrode of the second MOS tube, one end of the tenth resistor is electrically connected with the source electrode of the second MOS tube, and the other end of the tenth resistor is a control end of the fourth switch module.
6. The high reliability cooking range valve-closing circuit of any one of claims 1 to 5, wherein: the first charge-discharge module comprises a first electrolytic capacitor, the anode of the first electrolytic capacitor is electrically connected with the second end of the first switch module, and the cathode of the first electrolytic capacitor is grounded.
7. The high reliability cooking range valve-closing circuit of any one of claims 1 to 5, wherein: the second charge-discharge module comprises a second electrolytic capacitor, the anode of the second electrolytic capacitor is electrically connected with the second end of the third switch module, and the cathode of the second electrolytic capacitor is grounded.
8. A gas stove is characterized in that: comprising the high reliability hob off valve circuit of any one of the claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221275611.3U CN217356973U (en) | 2022-05-24 | 2022-05-24 | High-reliability stove valve closing circuit and gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221275611.3U CN217356973U (en) | 2022-05-24 | 2022-05-24 | High-reliability stove valve closing circuit and gas stove |
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| Publication Number | Publication Date |
|---|---|
| CN217356973U true CN217356973U (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221275611.3U Active CN217356973U (en) | 2022-05-24 | 2022-05-24 | High-reliability stove valve closing circuit and gas stove |
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| CN (1) | CN217356973U (en) |
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- 2022-05-24 CN CN202221275611.3U patent/CN217356973U/en active Active
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