Gas valve and gas stove

Abstract

The invention discloses a gas valve and a gas stove. The gas valve comprises an electromagnetic valve, the electromagnetic valve is suitable for controlling on-off of gas, the electromagnetic valve comprises a movable iron core and a static iron core, and the movable iron core and the static iron core are suitable for conducting an ignition loop when making contact so that the igniter can ignite. According to the technical scheme, the electromagnetic valve is a necessary part in the gas valve and used for controlling on-off of gas, improvement is carried out based on the electromagnetic valve, conduction of an ignition loop is achieved through contact of the movable iron core and the static iron core, so that the igniter is ignited, the movable iron core is equivalent to a movable contact of the microswitch, and the static iron core is equivalent to a static contact of the microswitch; the cooperation of the movable iron core and the static iron core realizes the replacement of a microswitch.

Description

Technical Field

[0001] This application relates to the field of gas stove technology, and in particular to a gas valve and a gas stove. Background Technology

[0002] The gas valve is a core component of a gas stove, primarily functioning to ignite, seal, and regulate gas flame intensity. The gas valve includes a valve stem that rotates synchronously with the knob. A microswitch is mounted on the valve body. When the gas valve is closed, the valve stem must be pressed down to trigger the microswitch to close. The microswitch's opening and closing connects the ignition circuit, thus igniting the igniter. However, the microswitch design presents some problems. For example, its short travel distance makes machining the valve body difficult and costly. Furthermore, the exposed microswitch allows water to easily flow down the valve stem and damage the microswitch when the user cleans the gas stove. Summary of the Invention

[0003] This application aims to at least partially solve one of the technical problems in the related art. To this end, this application proposes a gas valve.

[0004] To achieve the above objectives, this application discloses a gas valve, which includes a solenoid valve adapted to control the on / off state of gas. The solenoid valve includes a moving iron core and a stationary iron core, which are adapted to conduct an ignition circuit when in contact, so as to ignite an igniter.

[0005] In some embodiments of this application, the moving iron core and the stationary iron core are adapted to fit together when in contact.

[0006] In some embodiments of this application, the gas valve further includes a valve housing, the solenoid valve is disposed on the valve housing, the stationary iron core is adapted to be electrically connected to one end of the igniter, the valve housing is adapted to be electrically connected to the other end of the igniter, and the moving iron core is adapted to be electrically connected to the valve housing.

[0007] In some embodiments of this application, the gas valve further includes a valve stem and a lever. The valve stem is adapted to drive the lever to move. The lever is adapted to drive the moving iron core toward the stationary iron core when it is moving, so that the moving iron core and the stationary iron core come into contact. The valve housing is adapted to be electrically connected to the lever, and the lever is adapted to be electrically connected to the moving iron core.

[0008] In some embodiments of this application, the gas valve further includes a valve stem and a lever. The valve stem is adapted to drive the lever to move. The lever is adapted to drive the moving iron core toward the stationary iron core when it is moving, so that the moving iron core and the stationary iron core come into contact. The valve housing is adapted to be electrically connected to the valve stem. The valve stem is adapted to be electrically connected to the lever. The lever is adapted to be electrically connected to the moving iron core.

[0009] In some embodiments of this application, the gas valve further includes a valve needle, the valve stem is adapted to drive the valve needle to move, the valve needle is adapted to drive the lever to move when it is moving, the valve stem is adapted to be electrically connected to the valve needle, and the valve needle is adapted to be electrically connected to the lever.

[0010] In some embodiments of this application, the solenoid valve is provided with a first connecting portion, the valve body is provided with a second connecting portion, the first connecting portion and the second connecting portion are connected to fix the solenoid valve to the valve body, and an insulating pad is provided between the first connecting portion and the second connecting portion.

[0011] In some embodiments of this application, the solenoid valve is provided with a terminal electrically connected to the stationary iron core, the terminal being adapted to be plugged into one end of the igniter.

[0012] In some embodiments of this application, the valve housing is provided with a connection hole adapted to connect to the other end of the igniter.

[0013] The second aspect of this application discloses a gas stove, which includes an igniter and the aforementioned gas valve.

[0014] In this application's technical solution, the solenoid valve is an essential component of the gas valve, used to control the on / off state of the gas. Based on the solenoid valve, improvements are made to achieve the conduction of the ignition circuit through the contact between the moving iron core and the stationary iron core, thereby enabling the igniter to ignite. The moving iron core is equivalent to the moving contact of a micro switch, and the stationary iron core is equivalent to the stationary contact of a micro switch. The cooperation between the moving iron core and the stationary iron core achieves the replacement of the micro switch.

[0015] Other advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other designs can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the electrical connection between the gas valve and the igniter in some embodiments;

[0018] Figure 2 for Figure 1 Sectional view of AA;

[0019] Figure 3 for Figure 1 BB section view;

[0020] Figure 4 for Figure 3 Enlarged view marked with Ⅰ in the middle;

[0021] Figure 5 This is a schematic diagram of the ignition circuit in some embodiments (the stationary iron core and the moving iron core constitute the part of the ignition circuit);

[0022] Figure 6 This is a schematic diagram of the ignition circuit in some embodiments (the stationary iron core, the moving iron core, and the valve housing constitute the part of the ignition circuit);

[0023] Figure 7 This is a schematic diagram of the ignition circuit in some embodiments (the stationary iron core, the moving iron core, the lever, and the valve housing constitute the part of the ignition circuit);

[0024] Figure 8 This is a schematic diagram of the ignition circuit in some embodiments (the stationary iron core, moving iron core, lever, valve stem, and valve body constitute the part of the ignition circuit);

[0025] Figure 9 This is a schematic diagram of the ignition circuit in some embodiments (the stationary iron core, moving iron core, lever, valve needle, valve stem, and valve body constitute the part of the ignition circuit).

[0026] Explanation of icon numbers:

[0027] Gas valve 1000, valve body 1100, second connecting part 1110, connecting hole 1120, valve stem 1200, valve needle 1300, lever 1400, first push arm 1410, second push arm 1420, solenoid valve 1500, moving iron core 1510, stationary iron core 1520, first connecting part 1530, wiring terminal 1540, valve core 1600, air intake channel 1610, insulating pad 1700, igniter 2000.

[0028] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0033] This application proposes a gas valve 1000, combined with... Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the gas valve 1000 includes a solenoid valve 1500, which controls the on / off state of the gas. The solenoid valve 1500 includes a moving iron core 1510 and a stationary iron core 1520. When the moving iron core 1510 and the stationary iron core 1520 are in contact, the ignition circuit is opened, thus enabling the igniter 2000 to ignite. In this embodiment, the solenoid valve 1500 is an essential component of the gas valve 1000, used to control the on / off state of the gas. Based on the improvement of the solenoid valve 1500, the ignition circuit is opened through the contact of the moving iron core 1510 and the stationary iron core 1520, thereby enabling the igniter 2000 to ignite. The moving iron core 1510 is equivalent to the moving contact of a micro switch, and the stationary iron core 1520 is equivalent to the stationary contact of a micro switch. The cooperation of the moving iron core 1510 and the stationary iron core 1520 realizes the replacement of the micro switch.

[0034] Specifically, the gas valve 1000 is described by way of example. The gas valve 1000 includes a valve body 1100, a valve stem 1200, a valve core 1600, a lever 1400, a solenoid valve 1500, an igniter 2000, and a flame sensor.

[0035] The valve housing 1100 is the main structural component of the gas valve 1000. Other components of the gas valve 1000 are installed on the valve housing 1100. The valve housing 1100 can be made of copper or other materials through casting or other processes. In order to adapt to the installation requirements of different components, the valve housing 1100 is generally an irregular component. Generally speaking, in order to facilitate the installation of other components, the valve housing 1100 is a split component that is connected and assembled by connecting means. The valve housing 1100 has a receiving cavity inside. The cavity wall of the receiving cavity is provided with an inner ring gas supply hole and an outer ring gas supply hole. The inner ring gas supply hole is connected to the inner ring flame hole of the burner, and the outer ring gas supply hole is connected to the outer ring flame hole of the burner.

[0036] The valve core 1600 is installed in the accommodating cavity and is rotatable within the cavity. An air intake channel 1610 is formed inside the valve core 1600. The valve core 1600 has an inner ring air passage and an outer ring air passage. The inner ring air passage and the outer ring air passage are both connected. The inner ring air passage and the inner ring air supply hole are matched, and the outer ring air passage and the outer ring air supply hole are matched. When the valve core 1600 rotates within the accommodating cavity, the communication area (overlapping area) between the inner ring air passage and the inner ring air supply hole changes, and the communication area (overlapping area) between the outer ring air passage and the outer ring air supply hole also changes. This alters the amount of gas flowing to the inner and outer ring burner holes, thereby regulating the flame intensity. The gas supplied from the outside needs to be transported through the pipeline to the inside of the valve core 1600 and enter the intake channel 1610. The gas entering the intake channel 1610 needs to flow out from the inner ring ventilation channel and into the inner ring supply port and then into the inner ring burner port, and also needs to flow out from the outer ring ventilation channel and into the outer ring supply port and then into the outer ring burner port. By rotating the valve core 1600, the relative position of the inner ring ventilation channel and the inner ring supply port gradually changes, thereby changing their connection area (overlap area). The relative position of the outer ring ventilation channel and the outer ring supply port also gradually changes, thereby changing their connection area (overlap area). When the connection area (overlap area) changes, the gas flow rate can be changed, thus achieving the adjustment of the flame intensity.

[0037] The rotation of the valve core 1600 is achieved through the valve stem 1200, which is mounted on and protrudes from the valve housing 1100. The valve stem 1200 is configured to be axially movable and circumferentially rotatable relative to the valve housing 1100. A knob is generally installed at the top of the valve stem 1200. The user applies force to the valve stem 1200 by acting on the knob, thereby transmitting force to the valve stem 1200. That is, the user can apply a force along the axial direction of the valve stem 1200, and the valve stem 1200 gradually moves toward the interior of the valve housing 1100, thus releasing the child lock function. After the child lock function is released, the valve stem 1200 can rotate circumferentially, thereby driving the valve core 1600 to rotate in the receiving cavity, thus achieving the adjustment of the firepower.

[0038] When the valve stem 1200 moves toward the interior of the valve housing 1100, the valve stem 1200 can drive the lever 1400, causing the lever 1400 to move. It can be understood that there are several ways in which the valve stem 1200 drives the lever 1400, causing the lever 1400 to move. The valve stem 1200 can directly apply force to the lever 1400, thereby causing the lever 1400 to move; or the valve stem 1200 can indirectly apply force to the lever 1400, thereby causing the lever 1400 to move. The movement of the lever 1400 causes the moving iron core 1510 to move toward the stationary iron core 1520 until the moving iron core 1510 and the stationary iron core 1520 contact. At this time, the solenoid valve 1500 opens the gas supply, allowing the gas to enter the air intake passage 1610 of the valve core 1600, and then be delivered to the inner ring vent and outer ring vent respectively through the inner ring vent and outer ring vent and ejected.

[0039] Understandably, in related technologies, when the valve stem 1200 moves toward the interior of the valve housing 1100, the valve stem 1200 triggers the microswitch to close, thereby connecting the ignition circuit and causing the igniter 2000 to ignite, thus igniting the gas to form a flame. In this embodiment, the cooperation of the moving iron core 1510 and the stationary iron core 1520 replaces the microswitch. When the gas valve 1000 is opened, the valve stem 1200 is controlled, ultimately causing the moving iron core 1510 to move toward the stationary iron core 1520. Based on this, the moving iron core 1510 is designed to contact the stationary iron core 1520, and an electrical connection is achieved when the moving iron core 1510 and the stationary iron core 1520 are in contact (the so-called electrical connection means that the objects that achieve electrical connection can conduct electricity), thus connecting the ignition circuit. This can be understood as follows: the moving iron core 1510 constitutes the moving contact of the micro switch, and the stationary iron core 1520 constitutes the stationary contact of the micro switch. The contact between the moving iron core 1510 and the stationary iron core 1520 is equivalent to the contact between the moving contact and the stationary contact of the micro switch. That is to say, both the moving iron core 1510 and the stationary iron core 1520 are conductive. The moving iron core 1510 and the stationary iron core 1520 constitute part of the ignition circuit. When the moving iron core 1510 and the stationary iron core 1520 are in contact, the igniter 2000 can be ignited.

[0040] This design replaces the microswitch, eliminating the need to machine a mounting position for the microswitch on the valve housing 1100, thus reducing the machining difficulty of the valve housing 1100 and lowering costs. Furthermore, the solenoid valve 1500 is an essential component of the gas valve 1000, and this embodiment fully utilizes this component, which helps simplify the structure. In addition, the solenoid valve 1500 is generally designed to be far from the valve stem 1200, so even if water flows down the valve stem 1200 during user cleaning, it is difficult for it to enter the solenoid valve 1500, providing a certain degree of waterproofing for the ignition circuit.

[0041] When the moving iron core 1510 contacts the stationary iron core 1520, causing the igniter 2000 to ignite, the flame sensor is heated by the flame and generates a thermoelectric potential. This thermoelectric potential generates a current in the circuit connected to the solenoid valve 1500, thereby making the stationary iron core 1520 magnetic (the stationary iron core 1520 has a coil wrapped around it, and the current flowing through the coil makes the stationary iron core 1520 magnetic). The stationary iron core 1520 attracts the moving iron core 1510. Even if the valve stem 1200 is released, the solenoid valve 1500 will not shut off the gas supply. After the flame is extinguished, the thermoelectric potential of the flame sensor disappears, the magnetism of the stationary iron core 1520 disappears or weakens, and the moving iron core 1510 resets. In this way, the gas supply is blocked / interrupted. That is to say, the solenoid valve 1500 realizes the opening and closing of the gas supply.

[0042] Understandably, the contact between the moving iron core 1510 and the stationary iron core 1520 causes the igniter 2000 to ignite the gas. Due to the function of the flame sensor, after the flame is generated, the stationary iron core 1520 will continue to attract the moving iron core 1510. To prevent the igniter 2000 from continuously igniting after the flame is generated, the igniter 2000 can be designed to disconnect the ignition circuit after ignition for a period of time (for example, by setting a thermal element that deforms due to heat to disconnect the ignition circuit). Alternatively, the return spring force of the moving iron core 1510 and the magnetic force of the stationary iron core 1520 on the moving iron core 1510 can be optimized so that the stationary iron core 1520 can attract the moving iron core 1510 to start the gas supply, while also avoiding continuous contact between the moving iron core 1510 and the stationary iron core 1520 to prevent continuous ignition. Of course, other methods can also be used. To elaborate on the latter, when the user controls the valve stem 1200 to move, the moving iron core 1510 moves toward the stationary iron core 1520 until the moving iron core 1510 contacts the stationary iron core 1520. The igniter 2000 ignites the gas to form a flame. At this time, the return spring force on the moving iron core 1510 is F1, and the magnetic force of the stationary iron core 1520 on the moving iron core 1510 is F2. Since F1 is greater than F2, when the user cancels the control of the valve stem 1200, the moving iron core 1510 will move away from the stationary iron core 1520, and F1 will gradually decrease (due to spring deformation) until it is equal to F2. At this time, the moving iron core 1510 and the stationary iron core 1520 are set alternately (for example, forming a small gap), and the ignition circuit is disconnected. However, the stationary iron core 1520 still attracts the moving iron core 1510, and the solenoid valve 1500 is still in the state of opening the gas supply.

[0043] Combination Figure 3 As shown, in some embodiments, the moving iron core 1510 and the stationary iron core 1520 are bonded together when in contact. It can be understood that the bonding of the moving iron core 1510 and the stationary iron core 1520 achieves surface contact, effectively preventing poor contact between the moving iron core 1510 and the stationary iron core 1520. For example, the moving iron core 1510 has a first end face and the stationary iron core 1520 has a second end face. When the moving iron core 1510 and the stationary iron core 1520 are in contact, the first end face and the second end face are bonded in a relatively balanced manner, achieving good contact and thus realizing the conduction of the ignition circuit.

[0044] Combination Figure 1 and Figure 6 As shown, in some embodiments, the solenoid valve 1500 is disposed on the valve housing 1100, one end of the igniter 2000 is used to be electrically connected to the stationary iron core 1520, the other end of the igniter 2000 is used to be electrically connected to the valve housing 1100, and the moving iron core 1510 is electrically connected to the valve housing 1100.

[0045] Specifically, the solenoid valve 1500 is connected to the valve housing 1100 and thus assembled onto the valve housing 1100. The moving iron core 1510 is movably arranged relative to the valve housing 1100, and can move towards or away from the stationary iron core 1520. The stationary iron core 1520 is stationary relative to the valve housing 1100. Since the ignition circuit is connected when the moving iron core 1510 and the stationary iron core 1520 are in contact, the moving iron core 1510 and the stationary iron core 1520 constitute part of the ignition circuit. Generally speaking, the moving iron core 1510 is located inside the valve housing 1100, while the igniter 2000 needs to be located outside the valve housing 1100. In order to facilitate the formation of the ignition circuit, in this embodiment, one end of the igniter 2000 is electrically connected to the stationary iron core 1520, and the other end of the igniter 2000 is electrically connected to the valve housing 1100. As described above, the valve housing 1100 serves as a support for other components of the gas valve 1000. Generally, the gas valve 1000 is installed by connecting and fixing the valve housing 1100 to the target position, ensuring that the installation of the gas valve 1000 is stable and does not shift position arbitrarily. That is, the valve housing 1100 is also stationary. Thus, the components that are electrically connected to the two ends of the igniter 2000 are the stationary iron core 1520 and the valve housing 1100, which facilitates the formation of the ignition circuit. The valve housing 1100 is electrically connected to the moving iron core 1510, meaning the valve housing 1100 is also conductive. This allows the valve housing 1100, the moving iron core 1510, and the stationary iron core 1520 to form part of the ignition circuit. When the moving iron core 1510 and the stationary iron core 1520 come into contact and the ignition circuit is completed, current can flow from the stationary iron core 1520 to the valve housing 1100 (flowing sequentially through the stationary iron core 1520, the moving iron core 1510, and the valve housing 1100), or from the valve housing 1100 to the stationary iron core 1520 (flowing sequentially through the valve housing 1100, the moving iron core 1510, and the stationary iron core 1520).

[0046] There are several ways to allow current to flow from the stationary iron core 1520 to the valve housing 1100 or from the valve housing 1100 to the stationary iron core 1520, for example, by combining... Figures 1 to 3 as well as Figure 7 As shown, in some embodiments, the valve stem 1200 of the gas valve 1000 is used to drive the lever 1400 of the gas valve 1000 to move. When the lever 1400 moves, it drives the moving iron core 1510 to move toward the stationary iron core 1520, so that the moving iron core 1510 and the stationary iron core 1520 come into contact. The valve housing 1100 is electrically connected to the lever 1400, and the lever 1400 is electrically connected to the moving iron core 1510.

[0047] Specifically, the cooperation of valve stem 1200, lever 1400, and moving iron core 1510 is as described above. Generally, lever 1400 includes a rotating shaft, a first push arm 1410, and a second push arm 1420. The first push arm 1410 is located at one end of the rotating shaft, and the second push arm 1420 is located at the other end of the rotating shaft. The first push arm 1410 and the second push arm 1420 are arranged in a V-shape on the component. Lever 1400 is rotatably set through the rotating shaft. The assembly relationship between the lever 1400 and the valve housing 1100 is as follows: the valve housing 1100 has a corresponding mounting cavity inside, and the lever 1400 is rotatably mounted in the mounting cavity. When the valve stem 1200 moves toward the interior of the valve housing 1100 (presses down), the valve stem 1200 pushes (either directly or indirectly) the first push arm 1410, thereby causing the entire lever 1400 to rotate. When the lever 1400 rotates, it drives the second push arm 1420 to rotate as well. The moving iron core 1510 is located on the rotation path of the second push arm 1420. The second push arm 1420 makes contact with the moving iron core 1510, and as the lever 1400 rotates, the second push arm 1420 pushes the moving iron core 1510 toward the stationary iron core 1520 until the moving iron core 1510 contacts the stationary iron core 1520.

[0048] In this embodiment, the valve housing 1100 is electrically connected to the lever 1400, and the lever 1400 is electrically connected to the moving iron core 1510. That is, the lever 1400 is also conductive. Generally speaking, the lever 1400 is installed in the mounting cavity inside the valve housing 1100 and can directly contact the valve housing 1100 to achieve electrical connection. It can be seen that the valve housing 1100, the lever 1400, the moving iron core 1510, and the stationary iron core 1520 cooperate to form part of the ignition circuit. When the moving iron core 1510 and the stationary iron core 1520 contact to conduct the ignition circuit, the current in the ignition circuit can flow sequentially through the valve housing 1100, the lever 1400, the moving iron core 1510, and the stationary iron core 1520, or sequentially through the stationary iron core 1520, the moving iron core 1510, the lever 1400, and the valve housing 1100.

[0049] Combination Figures 1 to 3 as well as Figure 8As shown, in some embodiments, the valve housing 1100 is electrically connected to the valve stem 1200, the valve stem 1200 is electrically connected to the lever 1400, and the lever 1400 is electrically connected to the moving iron core 1510. Based on the valve stem 1200 driving the lever 1400 to move, the valve stem 1200 is designed to be electrically connected to the lever 1400, and the valve stem 1200 is also electrically connected to the valve housing 1100. That is, the valve stem 1200 is conductive. Generally, the valve stem 1200 is inserted into the valve housing 1100, and the valve stem 1200 can directly contact the valve housing 1100 to achieve electrical connection. That is, the valve housing 1100, valve stem 1200, lever 1400, stationary iron core 1520, and moving iron core 1510 cooperate to form part of the ignition circuit. When the moving iron core 1510 contacts the stationary iron core 1520 and the ignition circuit is connected, the current can flow sequentially through the valve body 1100, valve stem 1200, lever 1400, moving iron core 1510 and stationary iron core 1520, or sequentially through the stationary iron core 1520, moving iron core 1510, lever 1400, valve stem 1200 and valve body 1100.

[0050] The valve housing 1100 can be electrically connected to both the valve stem 1200 and the lever 1400. When the moving iron core 1510 contacts the stationary iron core 1520 to conduct the ignition circuit and the current flows from the valve housing 1100 to the stationary iron core 1520, the current in the ignition circuit can flow sequentially through the valve housing 1100, lever 1400, moving iron core 1510 and stationary iron core 1520, or sequentially through the valve housing 1100, valve stem 1200, lever 1400, moving iron core 1510 and stationary iron core 1520, or sequentially through the valve housing 1100, valve stem 1200, lever 1400, moving iron core 1510 and stationary iron core 1520, and also sequentially through the valve housing 1100, valve stem 1200, lever 1400, moving iron core 1510 and stationary iron core 1520. When the moving iron core 1510 contacts the stationary iron core 1520 to conduct the ignition circuit and the current flows from the stationary iron core 1520 to the valve body 1100, the current in the ignition return flow can flow sequentially through the stationary iron core 1520, the moving iron core 1510, the lever 1400 and the valve body 1100, or sequentially through the stationary iron core 1520, the moving iron core 1510, the lever 1400, the valve stem 1200 and the valve body 1100, or the current in the ignition circuit can flow sequentially through the stationary iron core 1520, the moving iron core 1510, the lever 1400 and the valve body 1100, or sequentially through the stationary iron core 1520, the moving iron core 1510, the lever 1400, the valve stem 1200 and the valve body 1100.

[0051] The current can flow from the stationary iron core 1520 to the valve body 1100 or from the valve body 1100 to the stationary iron core 1520, or the following scheme can be adopted: the valve stem 1200 of the gas valve 1000 drives the valve needle 1300 to move, which in turn drives the lever 1400 to move, which in turn drives the moving iron core 1510 to move towards the stationary iron core 1520 until the moving iron core 1510 contacts the stationary iron core 1520. (Combined) Figures 1 to 3 as well as Figure 9 As shown, the valve stem 1200 and the valve needle 1300 are separate components. When the valve stem 1200 moves downward toward the interior of the valve housing 1100, the valve stem 1200 drives the valve needle 1300 to move downward. The valve needle 1300 pushes the first push arm 1410, thereby causing the lever 1400 to rotate. When the lever 1400 rotates, it drives the second push arm 1420 to rotate as well. The second push arm 1420 makes contact with the moving iron core 1510 and pushes the moving iron core 1510 toward the stationary iron core 1520. The valve stem 1200 and valve body 1100 can be directly connected for electrical connection, as can the valve stem 1200 and valve needle 1300, the valve needle 1300 and lever 1400, and the lever 1400 and moving iron core 1510. Indirect contact can also be used for electrical connection. Thus, the valve body 1100, valve stem 1200, valve needle 1300, lever 1400, moving iron core 1510, and stationary iron core 1520 constitute part of the ignition circuit. When the moving iron core 1510 and stationary iron core 1520 are in contact, thus completing the ignition circuit and current flows from the valve body 1100 to the stationary iron core 1520, the current in the ignition circuit can flow sequentially through the valve body 1100, valve stem 1200, valve needle 1300, lever 1400, moving iron core 1510, and stationary iron core 1520. When the moving iron core 1510 contacts the stationary iron core 1520 to conduct the ignition circuit and the current flows from the stationary iron core 1520 to the valve body 1100, the current in the ignition return flow can flow sequentially through the stationary iron core 1520, the moving iron core 1510, the lever 1400, the valve needle 1300, the valve stem 1200 and the valve body 1100.

[0052] Combination Figure 3 and Figure 4As shown, in some embodiments, the solenoid valve 1500 is provided with a first connecting portion 1530 and the valve housing 1100 is provided with a second connecting portion 1110. The first connecting portion 1530 and the second connecting portion 1110 are connected so that the solenoid valve 1500 is fixed on the valve housing 1100. An insulating pad 1700 is provided between the first connecting portion 1530 and the second connecting portion 1110. Thus, when the gas valve 1000 is in the closed state, the solenoid valve 1500 and the valve housing 1100 are mutually insulated. It is understandable that, since the valve housing 1100 is conductive, and generally the structure of the solenoid valve 1500 connected to the valve housing 1100 is also conductive, if the solenoid valve 1500 is directly installed to the valve housing 1100, the ignition circuit will be connected. Therefore, in this embodiment, by setting an insulating pad 1700 between the first connecting part 1530 and the second connecting part 1110, insulation between the solenoid valve 1500 and the valve housing 1100 is achieved when the gas valve 1000 is in the closed state. The ignition circuit can only be connected through the contact between the moving iron core 1510 and the stationary iron core 1520.

[0053] There are various structures for the first connecting part 1530 and the second connecting part 1110. As long as the valve body 1100 and the solenoid valve 1500 can be fastened, it is acceptable. For example, the first connecting part 1530 and the second connecting part 1110 can be hole structures. An insulating pad 1700 is disposed between the first connecting part 1530 and the second connecting part 1110. An insulating screw is used to pass through the first connecting part 1530, the insulating pad 1700 and the second connecting part 1110 for fastening. This can achieve insulation between the valve body 1100 and the solenoid valve 1500 when the gas valve 1000 is in the closed state.

[0054] Combination Figures 1 to 3 As shown, in some embodiments, the solenoid valve 1500 is provided with a terminal 1540, which is electrically connected to the stationary iron core 1520. When the solenoid valve 1500 is installed on the valve housing 1100, the terminal 1540 can be exposed outside the valve housing 1100. One end of the igniter 2000 is used to plug into the terminal 1540, thus realizing the electrical connection between the igniter 2000 and the stationary iron core 1520. It can be understood that one end of the igniter 2000 has a corresponding connection terminal, which is plugged into the terminal 1540. The plug-in connection is convenient and quick.

[0055] Combination Figures 1 to 3As shown, in some embodiments, the valve body 1100 is provided with a connection hole 1120, and the other end of the igniter 2000 is used to connect to the connection hole 1120. Since the valve body 1100 is made by casting and machining, it is inconvenient to set the wiring terminal 1540. It is more convenient to machine the connection hole 1120. There are many ways to connect the other end of the igniter 2000 to the connection hole 1120. For example, the other end of the igniter 2000 is a wire, which is wound around the connection hole 1120, or it is connected to the connection hole 1120 by screwing. Of course, other methods can also be used.

[0056] The second aspect of this application discloses a gas stove, which includes an igniter 2000 and a gas valve 1000 as described in the above embodiment. The gas valve 1000 includes a solenoid valve 1500, which is used to control the on / off of gas. The solenoid valve 1500 includes a moving iron core 1510 and a stationary iron core 1520. When the moving iron core 1510 and the stationary iron core 1520 are in contact, the ignition circuit is connected, thereby enabling the igniter 2000 to ignite. In this embodiment, the solenoid valve 1500 is an essential component of the gas valve 1000, used to control the on / off of the gas. Based on the solenoid valve 1500, improvements are made to achieve the conduction of the ignition circuit through the contact between the moving iron core 1510 and the stationary iron core 1520, thereby enabling the igniter 2000 to ignite. The moving iron core 1510 is equivalent to the moving contact of a micro switch, and the stationary iron core 1520 is equivalent to the stationary contact of a micro switch. The cooperation between the moving iron core 1510 and the stationary iron core 1520 achieves the replacement of the micro switch.

[0057] The microswitch is replaced by the cooperation of the moving iron core 1510 and the stationary iron core 1520. When the gas valve 1000 is opened, the valve stem 1200 is controlled to make the moving iron core 1510 move toward the stationary iron core 1520. Based on this, the moving iron core 1510 is designed to contact the stationary iron core 1520, and an electrical connection is achieved when the moving iron core 1510 and the stationary iron core 1520 are in contact (the so-called electrical connection means that the objects that achieve electrical connection can conduct electricity), thus conducting the ignition circuit. This can be understood as follows: the moving iron core 1510 constitutes the moving contact of the micro switch, and the stationary iron core 1520 constitutes the stationary contact of the micro switch. The contact between the moving iron core 1510 and the stationary iron core 1520 is equivalent to the contact between the moving contact and the stationary contact of the micro switch. That is to say, both the moving iron core 1510 and the stationary iron core 1520 are conductive. The moving iron core 1510 and the stationary iron core 1520 constitute part of the ignition circuit. When the moving iron core 1510 and the stationary iron core 1520 are in contact, the igniter 2000 can be ignited.

[0058] This design replaces the microswitch, eliminating the need to machine a mounting position for the microswitch on the valve housing 1100, reducing the machining difficulty of the valve housing 1100, and thus lowering costs. Furthermore, the solenoid valve 1500 is an essential component of the gas valve 1000, and this embodiment fully utilizes this component, which helps simplify the structure. In addition, the solenoid valve 1500 is generally designed to be far from the valve stem 1200, so even if water flows down the valve stem 1200 during user cleaning, it is difficult for it to enter the solenoid valve 1500, providing a certain degree of waterproofing for the ignition circuit. It is understood that the gas valve 1000 of the gas stove in this embodiment adopts the technical solution of the above embodiment, and therefore at least has the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0059] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A gas valve (1000), characterized in that, The electromagnetic valve (1500) is adapted to control the on-off of the gas, and comprises a moving iron core (1510) and a static iron core (1520), which are adapted to conduct the ignition circuit when in contact to ignite the igniter (2000).

2. Gas valve (1000) according to claim 1, characterized in that The moving iron core (1510) and the static iron core (1520) are adapted to fit when in contact.

3. The gas valve (1000) of claim 1, wherein The gas valve (1000) further comprises a valve shell (1100), the electromagnetic valve (1500) is arranged in the valve shell (1100), the static iron core (1520) is adapted to be electrically connected with one end of the igniter (2000), the valve shell (1100) is adapted to be electrically connected with the other end of the igniter (2000), and the moving iron core (1510) is adapted to be electrically connected with the valve shell (1100).

4. The gas valve (1000) according to claim 3, characterized in that The gas valve (1000) further comprises a valve rod (1200) and a push rod (1400), the valve rod (1200) is adapted to drive the push rod (1400) to move, the push rod (1400) is adapted to drive the moving iron core (1510) to move towards the static iron core (1520) when moving, so that the moving iron core (1510) and the static iron core (1520) are in contact, the valve shell (1100) is adapted to be electrically connected with the push rod (1400), and the push rod (1400) is adapted to be electrically connected with the moving iron core (1510).

5. The gas valve (1000) according to claim 3, characterized in that The gas valve (1000) further comprises a valve rod (1200) and a push rod (1400), the valve rod (1200) is adapted to drive the push rod (1400) to move, the push rod (1400) is adapted to drive the moving iron core (1510) to move towards the static iron core (1520) when moving, so that the moving iron core (1510) and the static iron core (1520) are in contact, the valve shell (1100) is adapted to be electrically connected with the valve rod (1200), the valve rod (1200) is adapted to be electrically connected with the push rod (1400), and the push rod (1400) is adapted to be electrically connected with the moving iron core (1510).

6. The gas valve (1000) according to claim 5, characterized in that The gas valve (1000) further comprises a valve needle (1300), the valve rod (1200) is adapted to drive the valve needle (1300) to move, the valve needle (1300) is adapted to drive the push rod (1400) to move when moving, the valve rod (1200) is adapted to be electrically connected with the valve needle (1300), and the valve needle (1300) is adapted to be electrically connected with the push rod (1400).

7. The gas valve (1000) according to claim 3, characterized in that The electromagnetic valve (1500) is provided with a first connecting part (1530), the valve shell (1100) is provided with a second connecting part (1110), the first connecting part (1530) and the second connecting part (1110) are connected to fix the electromagnetic valve (1500) to the valve shell (1100), and an insulating pad (1700) is arranged between the first connecting part (1530) and the second connecting part (1110).

8. The gas valve (1000) according to claim 3, characterized in that The electromagnetic valve (1500) is provided with a terminal (1540) electrically connected with the static core (1520), and the terminal (1540) is adapted to be plugged with one end of the igniter (2000).

9. The gas valve (1000) according to claim 3, characterized in that The valve shell (1100) is provided with a connecting hole (1120), and the connecting hole (1120) is adapted to be connected with the other end of the igniter (2000).

10. A gas hob, characterized in that The gas valve (1000) according to any one of claims 1 to 9 and the igniter (2000).

Images