Gas stove and method of operating the same

Abstract

The present invention provides a gas stove and an operation method thereof. The gas stove comprises a stove body, a burner, a solenoid valve and a thermocouple. The burner is movably arranged on the stove body, and the burner has a preparation position and a working position. When the pot is not placed on the burner, the burner is in the preparation position, and when the pot is placed on the burner, the pot is in the working position. The solenoid valve is arranged on a pipeline for conveying gas to the burner, and the solenoid valve is used to control the on-off of the pipeline. The thermocouple is connected to the solenoid valve, and the thermocouple has an insulating state insulated from the stove body and a conducting state electrically connected to the stove body. When the burner is in the working position and the fire is turned on, the thermocouple is in an insulating state, and the thermocouple generates an electromotive force to keep the solenoid valve in an open state. When the burner is in the preparation position, the thermocouple is in a conducting state to eliminate the electromotive force of the thermocouple, and the solenoid valve is closed. The scheme can realize the automatic fire-off of the gas stove, avoiding the safety hazards and energy waste caused by forgetting to turn off the fire.

Description

Technical Field

[0001] The present invention relates to the technical field of gas stoves, and in particular to a gas stove and an operating method thereof. Background Art

[0002] Gas stoves were introduced into my country in the last century and have been used for dozens of years. At present, as long as there is ventilation (liquefied gas, natural gas or gas cylinders, etc.), basically all families have gas stoves. With the development of gas stoves, many new types of pots have been introduced, but traditional pots are still commonly used. Here are two examples. One is a pot without an igniter. This type of gas stove can control the size of the flame, but cannot ignite. It needs to be ignited manually using matches or lighters, which has a great safety hazard. This type of gas stove is now almost eliminated. The pot with an igniter is commonly used in the home. It can be ignited by high-voltage discharge and control the size of the flame at the same time, meeting the needs of ordinary families for pots.

[0003] While we enjoy the convenience brought by gas stoves, they also bring us certain safety hazards. These hazards are caused by improper use and problems with the appliance itself. For example, forgetting to turn off the fire after use will cause the gas stove to continue to burn dry, which not only poses a safety hazard but also wastes energy. Summary of the invention

[0004] The invention provides a gas stove and an operating method thereof, so as to realize automatic fire shutoff after a cooker leaves the gas stove, thereby improving safety.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a gas stove, comprising: a stove body; a burner head, movably arranged on the stove body, the burner head having a preparation position and a working position, the burner head being in the preparation position when the pot is not placed on the burner head, and the pot being in the working position when the pot is placed on the burner head; an electromagnetic valve, the electromagnetic valve being arranged on a pipeline for conveying gas to the burner head, the electromagnetic valve being used to control the on-off of the pipeline; a thermocouple, the thermocouple being connected to the electromagnetic valve, the thermocouple having an insulating state insulated from the stove body and a conducting state electrically connected to the stove body; when the burner head is in the working position and the fire is turned on, the thermocouple is in the insulating state, and the thermocouple generates an electromotive force to keep the electromagnetic valve in an open state; when the burner head is in the preparation position, the thermocouple is in the conducting state to eliminate the electromotive force of the thermocouple, and the electromagnetic valve is closed.

[0006] Furthermore, the gas stove also includes: a connecting piece, which can be movably arranged with the burner head, and when the burner head is in the preparation position, the connecting piece is connected to the thermocouple to achieve electrical connection between the thermocouple and the stove body; when the burner head is in the working position, the connecting piece is separated from the thermocouple.

[0007] Furthermore, the gas stove also includes: a support column, which is arranged on the stove body, the middle part of the connecting piece is hinged to the support column, one end of the connecting piece is connected to the burner head to move with the burner head, and the other end of the connecting piece is used to connect to or separate from the thermocouple.

[0008] Furthermore, the gas stove further comprises: a connecting piece, the connecting piece is connected to the thermocouple and / or the solenoid valve, and the connecting piece is used to be detachably connected to the connecting piece.

[0009] Furthermore, the gas stove further comprises: an elastic part, the elastic part is elastic, the elastic part is arranged on the stove body, the burner head is located on the elastic part, and the working position of the burner head is lower than the preparation position of the burner head.

[0010] Furthermore, the gas stove further comprises: a delay portion, which is arranged on the stove body, and the force exerted by the delay portion on the burner is opposite to the direction of the force exerted by the elastic portion on the burner.

[0011] Furthermore, the delay part and the elastic part are both springs, and the gas stove also includes: a connecting piece, which can be movably arranged with the burner head, and when the burner head is in the preparation position, the connecting piece is connected to the thermocouple to achieve electrical connection between the thermocouple and the stove body; when the burner head is in the working position, the connecting piece is separated from the thermocouple; the delay part is connected to the connecting piece.

[0012] Furthermore, the thermocouple is a closed loop composed of two conductors of different materials. The thermocouple is arranged on the burner head. A part of the structure of the thermocouple is insulated from the burner head. One end of the thermocouple is connected to the solenoid valve through a wire.

[0013] According to another aspect of the present invention, there is provided an operating method for the above-mentioned gas stove, the operating method comprising: placing a pot on the burner of the gas stove, and the burner descends; the burner descends to insulate the stove body of the gas stove from the thermocouple of the gas stove; igniting the burner, after ignition, the thermocouple is heated to generate an electromotive force so that the solenoid valve of the gas stove remains in an open state to continuously supply gas to the burner; removing the pot from the gas stove, and the burner ascends; the burner ascends to connect the thermocouple to the stove body, the electromotive force of the thermocouple is eliminated, the solenoid valve is closed to stop supplying gas to the burner, and the burner is extinguished.

[0014] Furthermore, the operating method also includes: after the pot is removed from the burner, the duration of the burner rising process is t, and the burner remains on during the rising process; if the pot is placed back on the burner within time t, the thermocouple remains insulated from the stove body and the burner remains on; if the pot is not placed on the burner within time t, the thermocouple is connected to the stove body and the burner is turned off.

[0015] The technical scheme of the present invention is applied to provide a gas stove, which includes a stove body, a burner, a solenoid valve and a thermocouple. The burner is movably arranged on the stove body, and the burner has a preparation position and a working position. When the pot is not placed on the burner, the burner is in the preparation position, and when the pot is placed on the burner, the pot is in the working position; the solenoid valve is arranged on the pipeline for conveying gas to the burner, and the solenoid valve is used to control the on-off of the pipeline; the thermocouple is connected to the solenoid valve, and the thermocouple has an insulating state insulated from the stove body and a conducting state electrically connected to the stove body; when the burner is in the working position and the fire is turned on, the thermocouple is in an insulating state, and the thermocouple generates an electromotive force to keep the solenoid valve in an open state; when the burner is in the preparation position, the thermocouple is in a conducting state to eliminate the electromotive force of the thermocouple, and the solenoid valve is closed. With this scheme, after the user removes the pot from the burner, the gas stove can be automatically turned off by moving the burner and cooperating with other components, avoiding safety hazards and energy waste caused by forgetting to turn off the fire. Moreover, this method eliminates the electromotive force of the thermocouple by actions such as the movement of the furnace head, thereby closing the solenoid valve. This can be achieved by adopting a mechanical structure without the need for electronic structures such as a microcontroller unit, so the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1A schematic diagram showing a gas stove provided by an embodiment of the present invention when no cookware is placed thereon;

[0018] Figure 2 Shows Figure 1 Schematic diagram of the gas stove after placing the pot;

[0019] Figure 3 The schematic diagram of the operation flow of the gas stove provided by the present invention is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. furnace head; 20. solenoid valve; 30. thermocouple; 41. connector; 42. support column; 43. connecting piece; 50. elastic part; 60. delay part. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] As shown in the accompanying drawings, an embodiment of the present invention provides a gas stove, comprising: a stove body; a burner head 10, which is movably arranged on the stove body, and the burner head 10 has a preparation position and a working position. When the pot is not placed on the burner head 10, the burner head 10 is in the preparation position, and when the pot is placed on the burner head 10, the pot is in the working position; an electromagnetic valve 20, the electromagnetic valve 20 is arranged on a pipeline for conveying gas to the burner head 10, and the electromagnetic valve 20 is used to control the on-off of the pipeline; a thermocouple 30, the thermocouple 30 is connected to the electromagnetic valve 20, and the thermocouple 30 has an insulating state insulated from the stove body and a conducting state electrically connected to the stove body; when the burner head 10 is in the working position and the fire is turned on, the thermocouple 30 is in an insulating state, and the thermocouple 30 generates an electromotive force to keep the electromagnetic valve 20 in an open state; when the burner head 10 is in the preparation position, the thermocouple 30 is in a conducting state to eliminate the electromotive force of the thermocouple 30, and the electromagnetic valve 20 is closed.

[0024] By applying the technical solution of the present invention, a gas stove is provided, which comprises a stove body, a burner 10, a solenoid valve 20 and a thermocouple 30. The burner 10 is movably arranged on the stove body, and the burner 10 has a preparation position and a working position. When the pot is not placed on the burner 10, the burner 10 is in the preparation position, and when the pot is placed on the burner 10, the pot is in the working position; the solenoid valve 20 is arranged on a pipeline for conveying gas to the burner 10, and the solenoid valve 20 is used to control the on-off of the pipeline; the thermocouple 30 is connected to the solenoid valve 20, and the thermocouple 30 has an insulating state insulated from the stove body and a conducting state electrically connected to the stove body; when the burner 10 is in the working position and the fire is turned on, the thermocouple 30 is in an insulating state, and the thermocouple 30 generates an electromotive force to keep the solenoid valve 20 in an open state; when the burner 10 is in the preparation position, the thermocouple 30 is in a conducting state to eliminate the electromotive force of the thermocouple 30, and the solenoid valve 20 is closed. With this solution, after the user removes the pot from the burner 10, the gas stove can be automatically turned off by the movement of the burner 10 and the cooperation of other components, thus avoiding potential safety hazards and energy waste caused by forgetting to turn off the fire. Moreover, this method eliminates the electromotive force of the thermocouple 30 through the movement of the burner 10 and other actions, thereby closing the solenoid valve 20, that is, it can be achieved by adopting a mechanical structure, without using electronic structures such as a microcontroller unit, so the manufacturing cost is low.

[0025] In this embodiment, the gas stove further includes: a connector 41, which can be movably arranged with the burner head 10. When the burner head 10 is in the preparation position, the connector 41 is connected to the thermocouple 30 to achieve electrical connection between the thermocouple 30 and the stove body; when the burner head 10 is in the working position, the connector 41 is separated from the thermocouple 30. In this way, during the movement of the burner head 10, the connector 41 can be driven to move, so as to achieve connection or separation with the thermocouple 30 through the connector 41, thereby achieving disconnection or connection between the thermocouple and the stove body. This solution simplifies user operation, and the automatic shutdown of the gas stove can be achieved through the action of the mechanical structure.

[0026] In this embodiment, the gas stove further includes: a support column 42, which is arranged on the stove body, the middle part of the connecting member 41 is hinged to the support column 42, one end of the connecting member 41 is connected to the burner head 10 to move with the burner head 10, and the other end of the connecting member 41 is used to connect or disconnect with the thermocouple 30. In this way, the connecting member 41 and the support column 42 can form a lever structure to facilitate the movement of the connecting member 41.

[0027] Furthermore, the gas stove further comprises: a connecting piece 43, the connecting piece 43 is connected to the thermocouple 30 and / or the solenoid valve 20, and the connecting piece 43 is used to be detachably connected to the connecting piece 41. The connection between the thermocouple 30 and the connecting piece 41 is facilitated by providing the connecting piece 43.

[0028] In this embodiment, the gas stove further includes: an elastic part 50, which is elastic and arranged on the stove body, and the burner head 10 is located on the elastic part 50, and the working position of the burner head 10 is lower than the preparation position of the burner head 10. In this way, after placing the pot on the burner head 10, the burner head 10 can be lowered to the working position by the gravity of the pot, and when the pot is taken away, the burner head 10 returns to the preparation position under the elastic force of the elastic part 50. In this way, no additional operation is required by the user, the structure is simple, and the operation is convenient.

[0029] In this embodiment, the gas stove further includes: a delay part 60, which is arranged on the stove body, and the force of the delay part 60 on the burner head 10 is opposite to the force of the elastic part 50 on the burner head 10. The delay part 60 is used to delay the rising process of the burner head 10, thereby delaying the connection time of the connecting member 41 and the thermocouple 30. In this way, when the connecting member 41 is moving but not yet connected with the thermocouple 30, the burner head 10 is still in the firing state. If the user places the pot on the burner head 10 again, the burner head 10 returns to the working position and continues to work normally. Therefore, the pot will not be extinguished immediately after being taken off the burner head 10, which is suitable for the situation where the user places the pot on the burner head 10 again, which is convenient for the user to use.

[0030] Specifically, the delay part 60 and the elastic part 50 are both springs, and the gas stove further comprises: a connector 41, which can be movably arranged with the burner head 10, and when the burner head 10 is in the preparation position, the connector 41 is connected to the thermocouple 30 to achieve electrical connection between the thermocouple 30 and the stove body; when the burner head 10 is in the working position, the connector 41 is separated from the thermocouple 30; and the delay part 60 is connected to the connector 41. In this way, after the pot leaves the burner head 10, the tension applied to the connector 41 by the delay part 60 can slow down the moving speed of the connector 41, thereby achieving the effect of delaying the fire shutoff.

[0031] In this embodiment, the thermocouple 30 is a closed loop composed of two conductors of different materials. The thermocouple 30 is arranged on the burner head 10. A part of the structure of the thermocouple 30 is insulated and matched with the burner head 10. One end of the thermocouple 30 is connected to the solenoid valve 20 through a wire. The thermocouple 30 is arranged on the burner head 10, so that the thermocouple 30 can be heated by the flame after the fire is turned on, so that the thermocouple 30 generates an electromotive force. The thermocouple 30 is a closed loop composed of two conductors of different materials. Due to the different materials, different electron densities produce electron diffusion, and an electromotive force is generated after stable equilibrium. When there is a gradient temperature at both ends, a current will be generated in the loop, generating a thermoelectric electromotive force. The greater the temperature difference, the greater the current. The electromotive force of the thermocouple 30 acts on the solenoid valve 20, so that the solenoid valve 20 remains in an open state.

[0032] Another embodiment of the present invention provides an operation method, which is used for the above-mentioned gas stove, and the operation method includes: placing a pot on the burner 10 of the gas stove, and the burner 10 descends; the burner 10 descends to insulate the stove body of the gas stove from the thermocouple 30 of the gas stove; igniting the burner 10, after ignition, the thermocouple 30 is heated to generate an electromotive force to keep the solenoid valve 20 of the gas stove open, so as to continuously supply gas to the burner 10; taking the pot off the gas stove, and the burner 10 ascends; the burner 10 ascends to connect the thermocouple 30 with the stove body, the electromotive force of the thermocouple 30 is eliminated, and the solenoid valve 20 is closed to stop supplying gas to the burner 10, and the burner 10 is turned off. With this method, the gas stove can be automatically turned off by the user only needing to take away the pot, and the operation is convenient.

[0033] Furthermore, the operation method also includes: after the pot is removed from the burner 10, the duration of the rising process of the burner 10 is t, and the burner 10 remains on during the rising process of the burner 10; if the pot is placed on the burner 10 again within the time t, the thermocouple 30 remains insulated from the stove body, and the burner 10 remains on; if the pot is not placed on the burner 10 after the time t, the thermocouple 30 is connected to the stove body, and the burner 10 is turned off. In this way, when the connecting member 41 is moving but not connected to the thermocouple 30, the burner 10 is still in the on state, and if the user places the pot on the burner 10 again, the burner 10 returns to the working position and continues to work normally. Therefore, the pot will not be turned off immediately after being taken off from the burner 10, which is suitable for the situation where the user places the pot on the burner 10 again, which is convenient for the user.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas stove, characterized in that: include: stove body; A burner head (10) is movably arranged on the stove body, the burner head (10) having a preparation position and a working position, the burner head (10) being in the preparation position when the pot is not placed on the burner head (10), and being in the working position when the pot is placed on the burner head (10); A solenoid valve (20), the solenoid valve (20) being arranged on a pipeline for conveying gas to the burner (10), the solenoid valve (20) being used to control the on-off of the pipeline; a thermocouple (30), the thermocouple (30) being connected to the solenoid valve (20), the thermocouple (30) having an insulating state insulated from the stove body and a conducting state in which it is electrically connected to the stove body; When the burner head (10) is in the working position and the fire is on, the thermocouple (30) is in the insulating state, and the thermocouple (30) generates an electromotive force to keep the solenoid valve (20) in an open state; When the furnace head (10) is in the preparation position, the thermocouple (30) is in the conducting state to eliminate the electromotive force of the thermocouple (30), and the solenoid valve (20) is closed.

2. The gas stove according to claim 1, characterized in that: The gas stove also includes: A connecting piece (41), wherein the connecting piece (41) can be movably arranged with the burner head (10); when the burner head (10) is in the preparation position, the connecting piece (41) is connected to the thermocouple (30) to achieve electrical connection between the thermocouple (30) and the stove body; when the burner head (10) is in the working position, the connecting piece (41) is separated from the thermocouple (30).

3. The gas stove according to claim 2, characterized in that: The gas stove also includes: A support column (42) is arranged on the stove body, the middle part of the connecting member (41) is hinged to the support column (42), one end of the connecting member (41) is connected to the stove head (10) so as to move with the stove head (10), and the other end of the connecting member (41) is used to connect to or separate from the thermocouple (30).

4. The gas stove according to claim 2, characterized in that: The gas stove also includes: A connecting piece (43), the connecting piece (43) is connected to the thermocouple (30) and / or the solenoid valve (20), and the connecting piece (43) is used to be detachably connected to the connecting piece (41).

5. The gas stove according to claim 1, characterized in that: The gas stove also includes: An elastic part (50), the elastic part (50) is elastic, the elastic part (50) is arranged on the stove body, the burner head (10) is located on the elastic part (50), and the working position of the burner head (10) is lower than the preparation position of the burner head (10).

6. The gas stove according to claim 5, characterized in that: The gas stove also includes: The delay part (60) is arranged on the stove body, and the force exerted by the delay part (60) on the stove head (10) is opposite to the direction of the force exerted by the elastic part (50) on the stove head (10).

7. The gas stove according to claim 6, characterized in that: The delay part (60) and the elastic part (50) are both springs, and the gas stove further comprises: A connecting piece (41), wherein the connecting piece (41) can be movably arranged with the burner head (10); when the burner head (10) is in the preparation position, the connecting piece (41) is connected to the thermocouple (30) to achieve electrical connection between the thermocouple (30) and the stove body; when the burner head (10) is in the working position, the connecting piece (41) is separated from the thermocouple (30); and the delay part (60) is connected to the connecting piece (41).

8. The gas stove according to claim 1, characterized in that: The thermocouple (30) is a closed loop composed of two conductors of different materials, and one end of the thermocouple (30) is connected to the solenoid valve (20) via a wire.

9. An operating method for the gas stove according to any one of claims 1 to 8, characterized in that: The operation method comprises: Placing the pot on the burner (10) of the gas stove, and lowering the burner (10); The burner head (10) descends to insulate the stove body of the gas stove from the thermocouple (30) of the gas stove; The burner (10) is ignited, and after ignition, the thermocouple (30) is heated to generate an electromotive force so that the solenoid valve (20) of the gas stove remains in an open state, so as to continuously supply gas to the burner (10); The pot is removed from the gas stove, and the burner (10) rises; The burner head (10) rises to connect the thermocouple (30) to the stove body, the electromotive force of the thermocouple (30) is eliminated, the solenoid valve (20) is closed to stop supplying gas to the burner head (10), and the burner head (10) is extinguished.

10. The operating method according to claim 9, characterized in that: The operation method also includes: After the pot is removed from the burner (10), the duration of the rising process of the burner (10) is t, and the burner (10) remains on during the rising process of the burner (10); If the pot is placed back on the burner (10) within the time t, the thermocouple (30) remains insulated from the stove body, and the burner (10) remains on; If the pot is not placed on the stove head (10) within the time t, the thermocouple (30) is connected to the stove body and the stove head (10) is turned off.

Images