阅读说明：本技术 燃气灶及燃气灶的控制方法 (Gas stove and control method thereof ) 是由 高宁 刘明雄 潘叶江 于 2021-07-30 设计创作，主要内容包括：本申请涉及一种燃气灶及燃气灶的控制方法。该燃气灶包括：控制装置、电池、脉冲点火器、开阀线圈、第一开关装置和第二开关装置；其中,脉冲点火器的一端与电池的正极连接,另一端与第一开关装置的一端连接,第一开关装置的另一端与电池的负极连接,开阀线圈的一端与电池的正极连接,另一端与第二开关装置的一端连接,第二开关装置的另一端与电池的负极连接；控制装置,用于当接收到点火指令时,连通第二开关装置,以使电池为开阀线圈供电进行开阀操作；控制装置,还用于在连通第二开关装置达到第一预设时长后,连通第一开关装置,以使电池为脉冲点火器供电进行点火操作。采用本申请可以提高电池的利用率。(The application relates to a gas stove and a control method of the gas stove. This gas-cooker includes: the control device, a battery, a pulse igniter, a valve opening coil, a first switch device and a second switch device; one end of the pulse igniter is connected with the positive electrode of the battery, the other end of the pulse igniter is connected with one end of the first switch device, the other end of the first switch device is connected with the negative electrode of the battery, one end of the valve opening coil is connected with the positive electrode of the battery, the other end of the valve opening coil is connected with one end of the second switch device, and the other end of the second switch device is connected with the negative electrode of the battery; the control device is used for communicating the second switch device when receiving an ignition instruction so as to enable the battery to supply power to the valve opening coil for valve opening operation; and the control device is also used for communicating the first switching device after the second switching device is communicated for a first preset time so as to enable the battery to supply power to the pulse igniter for ignition operation. By adopting the method and the device, the utilization rate of the battery can be improved.)

1. A gas burner, characterized in that it comprises: the control device, a battery, a pulse igniter, a valve opening coil, a first switch device and a second switch device; wherein the content of the first and second substances,

one end of the pulse igniter is connected with the positive electrode of the battery, the other end of the pulse igniter is connected with one end of the first switch device, the other end of the first switch device is connected with the negative electrode of the battery, one end of the valve opening coil is connected with the positive electrode of the battery, the other end of the valve opening coil is connected with one end of the second switch device, and the other end of the second switch device is connected with the negative electrode of the battery;

the control device is used for communicating the second switch device when an ignition instruction is received so as to enable the battery to supply power to the valve opening coil for valve opening operation;

the control device is also used for communicating the first switch device after the second switch device is communicated for a first preset time so as to enable the battery to supply power to the pulse igniter for ignition operation.

2. The gas range of claim 1, further comprising a maintaining valve coil and a third switching device; wherein the content of the first and second substances,

the other end of the valve opening coil is also connected with one end of the maintaining valve coil, the other end of the maintaining valve coil is connected with one end of the third switching device, and the other end of the third switching device is connected with the negative electrode of the battery;

the control device is further used for disconnecting the second switching device and connecting the third switching device after the second switching device is connected for a second preset time period, so that the battery supplies power to the maintaining valve coil to perform valve maintaining operation;

the control device is further configured to disconnect the first switching device after the third switching device is connected for a third preset time period.

3. The gas range as claimed in claim 1 or 2, wherein the second switching device is a mosfet.

4. The gas range of claim 2, wherein the third switching device is a metal oxide semiconductor field effect transistor.

5. The gas stove of claim 2, wherein the control device is further configured to obtain a first electromotive force corresponding to the valve opening coil after the second switch device is connected;

the control device is further used for acquiring second electromotive forces corresponding to the valve opening coil and the valve maintaining coil after the first switch device is disconnected;

the control device is further configured to determine a current internal resistance and a current electromotive force of the battery according to the first electromotive force, the second electromotive force, a first resistance corresponding to the valve opening coil, and a second resistance corresponding to the valve maintaining coil;

the control device is further configured to query a current use state corresponding to the current internal resistance and the current electromotive force in a preset corresponding relationship among the internal resistance, the electromotive force and the use state, and if the current use state is a non-available state, output a battery replacement prompt to enable a user to replace the battery.

6. A control method of a gas stove is characterized in that the method is applied to the gas stove, and the gas stove comprises the following steps: a control device, a battery, a pulse igniter, a valve opening coil, a first switch device, and a second switch device, wherein one end of the pulse igniter is connected to a positive electrode of the battery, the other end of the pulse igniter is connected to one end of the first switch device, the other end of the first switch device is connected to a negative electrode of the battery, one end of the valve opening coil is connected to the positive electrode of the battery, the other end of the valve opening coil is connected to one end of the second switch device, and the other end of the second switch device is connected to the negative electrode of the battery, the method comprising:

when an ignition instruction is received, the control device is communicated with the second switch device so that the battery supplies power to the valve opening coil to perform valve opening operation;

and after the control device is communicated with the second switch device for a first preset time, the control device is communicated with the first switch device so that the battery supplies power to the pulse igniter to perform ignition operation.

7. The control method of a gas range according to claim 6, further comprising a maintaining valve coil and a third switching device, wherein the other end of the valve opening coil is further connected to one end of the maintaining valve coil, the other end of the maintaining valve coil is connected to one end of the third switching device, and the other end of the third switching device is connected to a negative electrode of the battery, the method further comprising:

after the control device is communicated with the second switching device for a second preset time, the second switching device is disconnected, and the third switching device is communicated, so that the battery supplies power to the maintaining valve coil to perform valve maintaining operation;

and the control device disconnects the first switching device after the third switching device is connected for a third preset time.

8. The control method of the gas range as claimed in claim 6 or 7, wherein the second switching device is a mosfet.

9. The control method of a gas range as claimed in claim 7, wherein the third switching device is a mosfet.

10. The control method of a gas range according to claim 7, further comprising:

after the control device is communicated with the second switch device, first electromotive force corresponding to the valve opening coil is obtained;

after the first switch device is disconnected, the control device acquires a second electromotive force corresponding to the valve opening coil and the valve maintaining coil;

the control device determines the current internal resistance and the current electromotive force of the battery according to the first electromotive force, the second electromotive force, the first resistor corresponding to the valve opening coil and the second resistor corresponding to the valve maintaining coil;

the control device inquires the current use state corresponding to the current internal resistance and the current electromotive force in the corresponding relation among the preset internal resistance, the preset electromotive force and the preset use state, and outputs a battery replacement prompt if the current use state is a non-available state so as to enable a user to replace the battery.

Technical Field

The application relates to the technical field of intelligent household appliances, in particular to a gas stove and a control method of the gas stove.

Background

At present, a gas stove, which is one of the core appliances of a kitchen, is operated only to maintain basic functions, such as ignition, valve opening, flame detection and MCU (micro controller Unit), without complex display function and wireless linkage, and its power consumption is generally not high. Therefore, the gas range generally uses a battery as a power supply source. The longer the discharge time of the battery, the greater the internal resistance and the lower the electromotive force.

However, the gas stove needs to be ignited by the pulse igniter while performing the valve opening operation by the valve opening coil, the electromotive force required for the valve opening operation is large due to the small resistance of the valve opening coil of the gas stove, and the utilization rate of the battery in the whole life cycle of the battery is low due to the large pulse current required by the pulse igniter.

Disclosure of Invention

In view of the above, it is necessary to provide a gas cooker and a control method of the gas cooker.

In a first aspect, there is provided a gas burner comprising: the control device, a battery, a pulse igniter, a valve opening coil, a first switch device and a second switch device; wherein the content of the first and second substances,

one end of the pulse igniter is connected with the positive electrode of the battery, the other end of the pulse igniter is connected with one end of the first switch device, the other end of the first switch device is connected with the negative electrode of the battery, one end of the valve opening coil is connected with the positive electrode of the battery, the other end of the valve opening coil is connected with one end of the second switch device, and the other end of the second switch device is connected with the negative electrode of the battery;

the control device is used for communicating the second switch device when an ignition instruction is received so as to enable the battery to supply power to the valve opening coil for valve opening operation;

the control device is also used for communicating the first switch device after the second switch device is communicated for a first preset time so as to enable the battery to supply power to the pulse igniter for ignition operation.

As an optional embodiment, the gas range further comprises a maintaining valve coil and a third switching device; wherein the content of the first and second substances,

the other end of the valve opening coil is also connected with one end of the maintaining valve coil, the other end of the maintaining valve coil is connected with one end of the third switching device, and the other end of the third switching device is connected with the negative electrode of the battery;

the control device is further used for disconnecting the second switching device and connecting the third switching device after the second switching device is connected for a second preset time period, so that the battery supplies power to the maintaining valve coil to perform valve maintaining operation;

the control device is further configured to disconnect the first switching device after the third switching device is connected for a third preset time period.

In an optional embodiment, the second switch device is a mosfet.

In an optional embodiment, the third switching device is a mosfet.

As an optional implementation manner, the control device is further configured to obtain a first electromotive force corresponding to the valve opening coil after the second switching device is connected;

the control device is further used for acquiring second electromotive forces corresponding to the valve opening coil and the valve maintaining coil after the first switch device is disconnected;

the control device is further configured to determine a current internal resistance and a current electromotive force of the battery according to the first electromotive force, the second electromotive force, a first resistance corresponding to the valve opening coil, and a second resistance corresponding to the valve maintaining coil;

the control device is further configured to query a current use state corresponding to the current internal resistance and the current electromotive force in a preset corresponding relationship among the internal resistance, the electromotive force and the use state, and if the current use state is a non-available state, output a battery replacement prompt to enable a user to replace the battery.

In a second aspect, there is provided a control method of a gas range, the method being applied to a gas range, the gas range including: a control device, a battery, a pulse igniter, a valve opening coil, a first switch device, and a second switch device, wherein one end of the pulse igniter is connected to a positive electrode of the battery, the other end of the pulse igniter is connected to one end of the first switch device, the other end of the first switch device is connected to a negative electrode of the battery, one end of the valve opening coil is connected to the positive electrode of the battery, the other end of the valve opening coil is connected to one end of the second switch device, and the other end of the second switch device is connected to the negative electrode of the battery, the method comprising:

when an ignition instruction is received, the control device is communicated with the second switch device so that the battery supplies power to the valve opening coil to perform valve opening operation;

and after the control device is communicated with the second switch device for a first preset time, the control device is communicated with the first switch device so that the battery supplies power to the pulse igniter to perform ignition operation.

As an optional embodiment, the gas range further comprises a maintaining valve coil and a third switching device, wherein the other end of the valve opening coil is further connected to one end of the maintaining valve coil, the other end of the maintaining valve coil is connected to one end of the third switching device, and the other end of the third switching device is connected to the negative electrode of the battery, and the method further comprises:

after the control device is communicated with the second switching device for a second preset time, the second switching device is disconnected, and the third switching device is communicated, so that the battery supplies power to the maintaining valve coil to perform valve maintaining operation;

and the control device disconnects the first switching device after the third switching device is connected for a third preset time.

In an optional embodiment, the second switch device is a mosfet.

In an optional embodiment, the third switching device is a mosfet.

As an optional implementation, the method further comprises:

after the control device is communicated with the second switch device, first electromotive force corresponding to the valve opening coil is obtained;

after the first switch device is disconnected, the control device acquires a second electromotive force corresponding to the valve opening coil and the valve maintaining coil;

the control device determines the current internal resistance and the current electromotive force of the battery according to the first electromotive force, the second electromotive force, the first resistor corresponding to the valve opening coil and the second resistor corresponding to the valve maintaining coil;

the control device inquires the current use state corresponding to the current internal resistance and the current electromotive force in the corresponding relation among the preset internal resistance, the preset electromotive force and the preset use state, and outputs a battery replacement prompt if the current use state is a non-available state so as to enable a user to replace the battery.

The application provides a gas stove and a control method of the gas stove. In the application, the gas stove firstly performs valve opening operation through the valve opening coil and then performs ignition operation through the pulse igniter. Therefore, when the gas stove is operated by opening the valve through the valve opening coil, the electromotive force of the battery is mostly distributed to the valve opening coil, so that the utilization rate of the battery in the whole life cycle of the battery is improved.

Drawings

Fig. 1 is a line graph illustrating a discharge characteristic of a battery according to an embodiment of the present disclosure;

fig. 2 is a circuit diagram of a battery circuit according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a solenoid valve provided in an embodiment of the present application;

FIG. 4 is a circuit diagram of an open valve provided in an embodiment of the present application;

FIG. 5 is a schematic diagram of a valve opening capability of a battery according to an embodiment of the present disclosure;

fig. 6 is a schematic view of a gas stove according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a valve opening capability of a battery according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a valve opening capability of a battery according to an embodiment of the present disclosure;

fig. 9 is a schematic view of a gas range according to an embodiment of the present application;

fig. 10 is a flowchart of a control method of a gas stove according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

As shown in fig. 1, the discharge characteristics of the battery: (1) the longer the internal resistance of the battery is as the battery discharge time is, the larger the internal resistance is. (2) The longer the battery is used, the lower the electromotive force of the battery. Batteries of different manufacturers have slight differences, but the general trend of the batteries conforms to the above rules in the life cycle of the batteries, and the discharge characteristics are verified through actual test data.

As shown in fig. 2, the battery and the load constitute a loop. Wherein the electromotive force of the battery is epsilon, the internal resistance of the battery is R, and the resistance of the load is R_LThe loop current is i, and the load electromotive force (also called operating voltage) is U_L. The circuit exists in the following formula (1) and formula (2):

based on the above formula (2), it can be seen that when R is_L>>When the ratio r is higher than the reference value,then U is_Lε, the cell now behaves as a constant voltage source. When R is_LWhen the ratio of the water to the oil is small,can not be ignored, U_L<ε, the battery does not act as a constant voltage source.

As shown in fig. 3, the solenoid valve of the conventional gas range includes a valve opening coil and a valve maintaining coil. Resistance of the valve-opening coil is R_L1Maintain the resistance of the valve coil at R ≧ 6 Ω_L2375 Ω.2 dry batteries are usually used to supply power to the gas stove. In the whole life cycle of the battery, the internal resistance of 1 battery is in the range of 0.25-1.5 omega, and the internal resistance of 2 batteries is in the range of 0.5-3.0 omega. Due to R_L2>>r, the influence of the variation of the internal resistance r is negligible when the valve is maintained in operation. But R is_L1Close to the internal resistance r, the change of the internal resistance r is not negligible at the time of valve opening operation, especially when the internal resistance r is large.

Based on the above analysis, as shown in fig. 4, the gas range is operated to open the valve by the valve-opening coil 410 and to ignite by the pulse igniter 420. The electromotive force of the battery is epsilon, the internal resistance of the battery is R, and the resistance of the valve-opening coil is R_L1The branch current of the valve-opening coil is i ≧ 6 Ω_{Valve opening}Electromotive force of the valve-opening coil is U_{Valve opening}The branch current of the ignition pulser is i_{Valve opening}100mA, total current i_{General assembly}＝i_Ignition+i_{Valve opening}The electromotive force of the switching device 430 is U_{Switch with a switch body}0.2V. The circuit exists in the following formula (3), formula (4) and formula (5):

ε＝r×(i_ignition+i_{Valve opening})+i_{Valve opening}×R_L1+U_{Switch with a switch body}Formula (3)

Based on the above formula (5), when U is equal to_{Valve opening}>The valve opening operation was normally performed at 1.6V, and as shown in FIG. 5, O indicates that the valve opening operation was possible, and X indicates that the valve opening operation was not possible. The existing 2 batteries are in the battery life cycleEpsilon is more than or equal to 2.8V at the early stage of the period, r is less than or equal to 1.25 omega, and 2.8V is at the middle stage of the life cycle of the battery>ε≥2.4V，1.25Ω<r is less than or equal to 2.25 omega, and 2.4V is arranged at the later stage of the life cycle of the battery>ε≥2.0V，r>2.25 omega. That is, in the whole battery life cycle of 2 batteries, the utilization rate is only 55%, and the problem of low utilization rate of the battery exists.

In order to solve the above technical problem, an embodiment of the present invention provides a gas stove, which will be described in detail below with reference to specific embodiments, and as shown in fig. 6, the gas stove includes: a control means 610, a battery 620, a pulse igniter 630, a valve opening coil 640, a first switching means 650 and a second switching means 660. Wherein, one end of the pulse igniter 630 is connected with the positive electrode of the battery 620, and the other end is connected with one end of the first switching device 650; the other end of the first switching device 650 is connected to the negative electrode of the battery 620; one end of the valve opening coil 640 is connected with the positive electrode of the battery 620, and the other end is connected with one end of the second switching device 660; the other end of the second switching device 660 is connected to the negative electrode of the battery 620.

And the control device 610 is used for communicating the second switch device 660 when receiving the ignition instruction, so that the battery 620 supplies power to the valve-opening coil 640 for valve-opening operation.

The control device 610 is further configured to communicate with the first switch device 650 after the second switch device 660 is communicated for a first preset time period, so that the battery 620 supplies power to the pulse igniter 630 for an ignition operation.

In the embodiment, unlike the conventional gas range in which the valve opening coil 410 performs the valve opening operation and the pulse igniter 420 performs the ignition operation, when the control device 610 receives the ignition command, the second switching device 660 is first turned on. At this time, the battery 620 supplies power to the valve opening coil 640, and the valve opening coil 640 performs a valve opening operation, so that the gas range outputs gas. Then, after the second switching device 660 is connected for a first preset time period (i.e. the gas stove is opened for the first preset time period), the control device 610 connects the first switching device 650. At this time, the battery 620 supplies power to the pulse igniter 630, and the pulse igniter 630 performs an ignition operation to ignite the gas. WhereinThe first preset time period may be set by a technician according to experience, and the embodiment of the present application is not limited. For example, the first preset time period may be set to 0.1 s. In this way, the valve opening coil 640 performs the valve opening operation and the pulse igniter 420 does not perform the ignition operation. Therefore, electromotive force U when valve opening coil 640 performs a valve opening operation_{Valve opening}The calculation formula (2) is changed from the above formula (5) to formula (6). Wherein, the formula (6) is as follows:

as is clear from the above equation (6), as shown in fig. 7, O indicates that the valve-opening operation is possible, and X indicates that the valve-opening operation is not possible. In 2 batteries, the utilization rate is improved from 55% to 70% in the whole life cycle of the battery.

As an alternative embodiment, as shown in fig. 6, the second switching device 660 is a Metal Oxide Semiconductor Field Effect Transistor (MOSFET). Thus, after the MOSFET is used as the second switch device 660, the electromotive force U of the second switch device 660_{Switch with a switch body}The voltage is reduced to 0.05V from the existing 0.2V. Therefore, electromotive force U at the time of valve opening operation by valve opening coil 640_{Valve opening}As can be seen from the calculation formula (6) above, as shown in fig. 8, O indicates that the valve opening operation is possible, and X indicates that the valve opening operation is not possible. In 2 batteries, the utilization rate is further improved from 70% to 80% in the whole battery life cycle.

As an alternative embodiment, as shown in fig. 9, the gas range further includes a maintaining valve coil 670 and a third switching device 680. The other end of the valve opening coil 640 is further connected to one end of the maintaining valve coil 670, and the other end of the maintaining valve coil 670 is connected to one end of the third switching device 680; the other end of the third switching device 680 is connected to the cathode of the battery 620.

The control device 610 is further configured to disconnect the second switching device 660 and connect the third switching device 680 after the second switching device 660 is connected for a second preset time period, so that the battery 620 supplies power to the valve maintaining coil 670 to perform a valve maintaining operation.

The control device 610 is further configured to turn off the first switching device 650 after the third switching device 680 is turned on for a third preset time period.

In an implementation, after the second switching device 660 is connected for a second preset time period (i.e., the gas stove performs the valve opening operation for the second preset time period, i.e., the gas stove performs the ignition operation for the second preset time period minus the first preset time period), the control device 610 may disconnect the second switching device 660 and connect the third switching device 680. At this time, the battery 620 supplies power to the maintaining valve coil 670, and the maintaining valve coil 670 performs a valve maintaining operation (i.e., the gas range is switched from the valve opening operation to the maintaining valve operation). The second preset time period may be set by a technician according to experience, and the embodiment of the present application is not limited; the second preset duration is longer than the first preset duration. For example, the second preset time period may be set to 0.6 s. Thereafter, after the third switching device 680 is turned on for a third preset time period (i.e., the gas range is maintained for the valve operation for the third preset time period), the control device 610 may turn off the first switching device 650. At this time, the battery 620 no longer powers the pulse igniter 630, and the pulse igniter 630 does not perform an ignition operation. The third preset time period may be set by a technician according to experience, and the embodiment of the present application is not limited. For example, the second preset time period may be set to 0.2 s.

As an alternative embodiment, as shown in fig. 9, the third switching device 680 is a mosfet.

As an alternative embodiment, the control device 610 is further configured to obtain the first electromotive force corresponding to the valve opening coil 640 after the second switching device 660 is connected.

The control device 610 is further configured to obtain a second electromotive force corresponding to the valve opening coil 640 and the valve maintaining coil 670 after the first switching device 650 is turned off.

The control device 610 is further configured to determine a current internal resistance and a current electromotive force of the battery 620 according to the first electromotive force, the second electromotive force, the first resistance corresponding to the valve opening coil 640, and the second resistance corresponding to the valve maintaining coil 670.

The control device 610 is further configured to query a current use state corresponding to the current internal resistance and the current electromotive force in the preset corresponding relationship among the internal resistance, the electromotive force, and the use state, and output a battery replacement prompt if the current use state is a non-available state, so that the user replaces the battery 620.

In an implementation, after the second switching device 660 is connected (i.e. the gas stove performs the valve opening operation), the control device 610 may obtain the first electromotive force U corresponding to the valve opening coil 640_{Valve opening}. After the first switching device 650 is turned off (i.e., the ignition of the gas range is stopped), the control device 610 obtains the second electromotive force U corresponding to the valve opening coil 640 and the valve maintaining coil 670_{Maintenance of}. Then, the control device 610 is based on the first electromotive force U_{Valve opening}Second electromotive force U_{Maintenance of}First resistor R corresponding to valve opening coil 640_{Valve opening}A second resistor R corresponding to the maintenance valve coil 670_{Maintenance of}Determining the current internal resistance r of the battery 620_{At present}And the present electromotive force epsilon_{At present}. Wherein the control means 610 determines the current internal resistance r of the battery 620_{At present}And the present electromotive force epsilon_{At present}The calculation formula of (a) is as follows:

or

Based on the formula (7) and the formula (8), after the control device 610 determines the current internal resistance and the current electromotive force of the battery 620, the current use state corresponding to the current internal resistance and the current electromotive force may be further queried in the preset corresponding relationship among the internal resistance, the electromotive force, and the use state. Thereafter, if the current usage state is the unavailable state, the control device 610 outputs a battery replacement prompt. In this way, the user can replace the battery 620 according to the battery replacement prompt. If the current usage state is the available state, the control device 610 does not output the battery replacement prompt. The corresponding relationship among the internal resistance, the electromotive force and the use state is shown in fig. 7; when the second switching device 660 and the third switching device 680 are mosfets, the corresponding relationship among the internal resistance, the electromotive force and the operating state is shown in fig. 8.

The embodiment of the application provides a gas stove. The gas stove is firstly operated by a valve opening coil and then ignited by a pulse igniter. Therefore, when the gas stove is operated by opening the valve through the valve opening coil, the electromotive force of the battery is mostly distributed to the valve opening coil, so that the utilization rate of the battery in the whole life cycle of the battery is improved.

The embodiment of the application also provides a control method of a gas stove, the method is applied to the gas stove, and the gas stove comprises: the control device, battery, pulse point firearm, the coil of opening the valve, first switching device and second switching device, wherein, pulse point firearm's one end and the anodal of battery are connected, and the other end is connected with the one end of first switching device, and the other end of first switching device is connected with the negative pole of battery, and the one end of the coil of opening the valve is connected with the anodal of battery, and the other end is connected with the one end of second switching device, and the other end of second switching device is connected with the negative pole of battery, as shown in fig. 10, concrete step is as follows:

and step 101, when receiving an ignition command, the control device is communicated with the second switch device so that the battery supplies power to the valve opening coil to perform valve opening operation.

And 102, after the control device is communicated with the second switch device for a first preset time, the control device is communicated with the first switch device so that the battery supplies power to the pulse igniter to perform ignition operation.

As an optional embodiment, the gas range further comprises a maintaining valve coil and a third switching device, wherein the other end of the valve opening coil is further connected with one end of the maintaining valve coil, the other end of the maintaining valve coil is connected with one end of the third switching device, and the other end of the third switching device is connected with the negative electrode of the battery, and the method further comprises:

after the control device is communicated with the second switching device for a second preset time, the second switching device is disconnected and a third switching device is communicated, so that the battery supplies power for the valve coil to perform valve maintenance operation;

the control device disconnects the first switching device after the third switching device is connected for a third preset time period.

In an alternative embodiment, the second switch device is a mosfet.

In an alternative embodiment, the third switching device is a mosfet.

As an optional implementation, the method further comprises:

after the control device is communicated with the second switching device, first electromotive force corresponding to the valve opening coil is obtained;

after the first switching device is disconnected, the control device acquires a second electromotive force corresponding to the valve opening coil and the valve maintaining coil;

the control device determines the current internal resistance and the current electromotive force of the battery according to the first electromotive force, the second electromotive force, the first resistor corresponding to the valve opening coil and the second resistor corresponding to the valve maintaining coil;

the control device inquires the current use state corresponding to the current internal resistance and the current electromotive force in the corresponding relation among the preset internal resistance, the preset electromotive force and the preset use state, and outputs a battery replacement prompt to enable a user to replace the battery if the current use state is a non-available state.

The embodiment of the application provides a control method of a gas stove. The gas stove is firstly operated by a valve opening coil and then ignited by a pulse igniter. Therefore, when the gas stove is operated by opening the valve through the valve opening coil, the electromotive force of the battery is mostly distributed to the valve opening coil, so that the utilization rate of the battery in the whole life cycle of the battery is improved.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.