Ignition knob assembly, range hood, stove, range hood and stove linkage equipment and system

Abstract

The present invention provides an ignition knob assembly, a range hood, a stove, a range hood and stove linkage device, and a system. The ignition knob assembly comprises an ignition knob comprising a housing, a mounting base, a transmission assembly, a detection device, and a stove communication device. The mounting base, the detection device, and the stove communication device are disposed within the housing. The transmission assembly is disposed on the mounting base, with the lower end of the transmission assembly extending from within the housing to outside the lower surface of the housing. The detection device detects the spatial state of the transmission assembly and generates a power detection signal representing different power levels based on the spatial state. The stove communication device transmits the power detection signal to the range hood to control the operating state of the range hood. Furthermore, a layered drive member has an upper surface provided with a height plane. The ignition knob is mounted above the layered drive member and is rotatable relative to the layered drive member. The lower end of the transmission assembly slides on the height plane during rotation of the ignition knob to change its spatial state. This improves the versatility of the ignition knob assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to an ignition knob assembly, a range hood communicating with the ignition knob assembly, a stove having the ignition knob assembly, a range hood and stove linkage device, and a range hood and stove linkage system. Background Art

[0002] The linkage between the range hood and stove is one of the development trends of smart home. During use, the range hood automatically adjusts the fan position according to the fire power of the stove, bringing great convenience to users.

[0003] Hood and stove linkage requires communication devices installed on both the range hood and the stove. This transmits the stove's heat level information to the range hood, which then adjusts the fan position accordingly. Furthermore, the range hood and stove typically need to be of the same brand, ensuring their communication devices communicate using the same protocol.

[0004] However, this will increase user costs, as users need to purchase the range hood and stove as a set. If the stove breaks, users will need to buy another stove from the same brand. They may even need to purchase several specific stove models from the same brand, as the communication protocol for the range hood and stove linkage will improve over the years as technology advances. Summary of the Invention

[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, an ignition knob assembly is provided, comprising: an ignition knob, which includes a shell, a mounting seat, a transmission assembly, a detection device and a stove communication device, the mounting seat, the detection device and the stove communication device are arranged in the shell, the transmission assembly is arranged on the mounting seat, the lower end of the transmission assembly extends from the inside of the shell to the outside of the lower surface of the shell, the detection device is used to detect the spatial state of the transmission assembly, and generate a firepower detection signal representing different firepower according to the spatial state, the stove communication device is used to transmit the firepower detection signal to the range hood to control the working state of the range hood; and a layered drive member, the upper surface of which is provided with a low plane and a high plane, wherein, in the assembled state, the ignition knob is rotatable relative to the layered drive member above the layered drive member, and the lower end of the transmission assembly slides on the low plane and the high plane during the rotation of the ignition knob to change its spatial state.

[0006] As can be seen, the ignition knob assembly provided by the present invention not only allows the stove's heat to be adjusted via the ignition knob, but also, because it includes a layered drive element, a transmission assembly, and a detection device, the ignition knob assembly itself can generate a heat detection signal representing different heat powers by detecting the spatial state of the transmission assembly. This heat detection signal is then transmitted to the range hood via a communication device. This allows users to remove the ignition knob assembly and install it on a new stove if the stove becomes damaged. This allows users to use stoves of various brands and signal types, or purchase a separate ignition knob assembly and install it on a new stove. For first-time users, they can simply purchase a range hood and ignition knob assembly with a smoke / stove linkage function, and then install the ignition knob assembly on their purchased stove. This significantly reduces user costs and increases user acceptance.

[0007] Furthermore, different firepower detection signals are generated through the coordination between the transmission assembly and the layered drive element in the ignition knob. Furthermore, different combinations of high and low planes on the layered drive element enable the generation of different firepower detection signals when the ignition knob is rotated to different angles. Furthermore, since different stoves may produce different firepowers when the ignition knob is rotated to the same angle, the ignition knob can be used on any stove without changing the ignition knob by combining it with different layered drive elements, resulting in a highly versatile product. Because the layered drive element has a simple structure and is much easier to manufacture than the ignition knob, designing different layered drive elements for different stoves can shorten the design cycle, reduce product design costs, and accelerate the product's market adoption. Furthermore, an ignition knob assembly with this structure also offers advantages such as simple structure, stable operation, high reliability, and durability.

[0008] Exemplarily, the transmission assembly includes a vertical moving member, which is movable in a vertical direction, and the lower end of the vertical moving member is the lower end of the transmission assembly.

[0009] In this way, the transmission assembly with this arrangement has a simple transmission method, can reduce the number of parts in the ignition knob, is easy to implement, has a simple and stable structure, is durable and not easy to damage.

[0010] Exemplarily, the detection device is used to detect the vertical position of the vertical moving member, and the spatial state includes the vertical position of the vertical moving member.

[0011] It can be seen from this that detecting the vertical position of the vertical moving part by using the detection device is direct, simple and effective, and does not require excessive calculation and deduction of changes in the spatial state of the transmission component, thereby reducing the difficulty of using the detection device.

[0012] Exemplarily, the ignition knob further includes an elastic member disposed in the housing, and the elastic member is configured to apply a downward force to the vertical movable member.

[0013] In this way, during the rotation of the vertical movable member along with the ignition knob, the elastic member can always make the lower end of the vertical movable member contact the layered driving member, thereby completely transmitting the high and low plane information of the layered driving member upper surface through the vertical movable member. The ignition knob with the elastic member improves the accuracy and reliability of the firepower detection signal transmitted by the ignition knob during the rotation process. The elastic member can be a device such as a spring or a spring washer.

[0014] Illustratively, a guide hole extending in the vertical direction is provided on the mounting seat, the upper portion of the vertical moving member is installed in the guide hole, and the elastic member is provided in the guide hole and clamped between the vertical moving member and the top end of the guide hole.

[0015] The guide hole has a guiding action to the vertical moving part, in the vertical moving part moving up and down process, can prevent the vertical moving part from being crooked, especially when the lower end of the vertical moving part passes through the high and low plane junction of the layered driving part, the layered driving part can produce a horizontal force component to the vertical moving part. By the guiding action of the guide hole, can ensure that the vertical moving part can not be crooked after being subjected to the force component, avoids the ignition knob rotation process, produces error or inaccurate firepower detection signal. And the guide hole can also be convenient to install the elastic member.

[0016] Exemplarily, the transmission assembly also includes a rotatable cam, the detection device is used to detect the rotational position of the cam, the spatial state includes the rotational position of the cam, and the cam is connected to the vertical moving member, wherein, when the lower end of the vertical moving member is on a low plane, the cam is in a first rotational position; and when the lower end of the vertical moving member is on a high plane, the cam is in a second rotational position.

[0017] As can be seen, through the transmission relationship between the vertically movable member and the cam, the lever action exerted by the boss on the cam can convert a smaller vertical displacement of the vertically movable member into a larger vertical displacement of the projection. This reduces the height difference between the high and low planes of the layered drive member, allowing the transmission assembly to produce a larger displacement by utilizing the smaller height difference. This improves the sensitivity and accuracy of the detection device to displacement changes of the transmission assembly. Furthermore, the thickness of the layered drive member can be reduced, thereby reducing the size of the ignition knob assembly, miniaturizing the product and reducing its cost.

[0018] Exemplarily, the cam is arranged on the side of the vertical moving member, and the cam is rotatable in a vertical plane.

[0019] In this way, the space on the side of the vertical moving part can be fully utilized to arrange the cam, and the movements of the vertical moving part and the cam will not interfere with each other, thereby further reducing the size of the ignition knob and improving the internal integration of the ignition knob.

[0020] Exemplarily, the detection device includes a micro switch, and the micro switch is triggered when the cam is in the first rotation position or the second rotation position.

[0021] Because the microswitch's structure and the signals it transmits are simple, the fire detection signal it represents is also relatively simple, which improves the transmission speed of the stove's communication device. Furthermore, using a microswitch as the detection device simplifies the transmission relationship between the transmission assembly and the detection device, allowing for faster and more accurate transmission of the fire detection signal through mechanical transmission. Using a microswitch as the detection device also improves the integration of the ignition knob and reduces its size.

[0022] Exemplarily, the detection device includes one or more of a micro switch, a travel switch, and a proximity switch.

[0023] It can be seen from this that this can expand the selection range of the detection device, make the detection device have multiple replaceable possibilities, and improve the scope of application.

[0024] Exemplarily, the ignition knob further includes an electric control board disposed in the housing, the electric control board being connected to the top of the mounting base, and the detection device and the stove communication device being disposed on the electric control board.

[0025] By installing the detection device and the stove communication device on the electric control board, the size of the ignition knob can be reduced, the integration level can be improved, and the cost of the ignition knob assembly can be reduced.

[0026] Exemplarily, a power supply is further provided on the electric control board, and the power supply is electrically connected to the electric control board.

[0027] This setting not only provides stable power to the electronic control board, but also reduces the number of power lines required if a battery or other power storage device is used, giving the ignition knob assembly the advantage of flexible installation.

[0028] Illustratively, the housing includes a shell and a top cover, and the top cover is detachably connected to the shell.

[0029] The outer shell, as the outermost layer of the ignition knob, protects the internal transmission components, detection devices, and stove communication system from high temperatures and oil contamination. The outer shell also makes the ignition knob easier to operate and easier to grip. The top cover is removably connected to the shell, making it easy to replace batteries and access the ignition knob's internal components.

[0030] Exemplarily, the lower surface of the layered driving member is the adhesive surface.

[0031] This allows the layered driver to maintain its position during rotation of the ignition knob, thereby improving the accuracy and stability of the fire detection signal generated by the detection device. Furthermore, the layered driver can be directly attached to the surface of the cooktop through the adhesive surface, without damaging the cooktop like fasteners.

[0032] Exemplarily, the layered driving member is circular, and a through hole is provided at the center of the layered driving member.

[0033] When the layered drive member is mounted on the surface of the cooker, the valve body assembly rod can be passed through the through hole. In this way, the layered drive member can have an integrated structure, which is convenient for fixing on the panel of the cooker.

[0034] Exemplarily, a notch is provided at the edge of the through hole, and the notch is used to mark the installation direction of the layered driving member.

[0035] In this way, the installation direction of the layered driving member can be determined to ensure that when the ignition knob is rotated, the angle at which the valve stem of the valve body assembly is rotated by the ignition knob corresponds to the fire detection signal generated by the ignition knob.

[0036] Exemplarily, there are multiple transmission components, the number of detection devices is equal to the number of transmission components, and the spatial state of each transmission component is detected by the corresponding detection device.

[0037] Because there are multiple transmission assemblies, there are more spatial state combinations of the multiple transmission assemblies. Therefore, their detection devices can generate more various fire detection signals, which can more accurately control the working state of the stove according to the rotation angle of the ignition knob. This improves the user experience of the ignition knob assembly.

[0038] Exemplarily, there are two transmission assemblies, namely a first transmission assembly and a second transmission assembly, which are relatively arranged on both sides of the mounting seat, and the top surface of the layered drive member is provided with a first low plane and a second low plane spaced apart from each other. When the rotation angle of the ignition knob is less than the first preset threshold, the lower ends of the first transmission assembly and the second transmission assembly are respectively located on the first low plane and the second low plane, so that the detection device generates a first firepower detection signal representing flameout; when the rotation angle of the ignition knob is greater than or equal to the first preset threshold and less than or equal to the second preset threshold, the lower ends of the first transmission assembly and the second transmission assembly are both located on the high plane, so that the detection device generates a second firepower detection signal representing the first firepower; and when the rotation angle of the ignition knob is greater than the second preset threshold and less than or equal to the third preset threshold, the lower end of the first transmission assembly is located on the high plane, and the lower end of the second transmission assembly is located on the first low plane, so that the detection device generates a third firepower detection signal representing the second firepower, and the second firepower is lower than the first firepower.

[0039] Thus, it can be seen that the ignition knob assembly with this structure can be combined into multiple states by the position of the high and low planes of the layered driving components and the coordination between the transmission components, thereby representing different fire power states and generating different fire power detection signals. The range hood is controlled by different fire power detection signals.

[0040] Exemplarily, when the fire power detection signal changes, the stove communication device continuously transmits the changed fire power detection signal for a predetermined period of time.

[0041] As can be seen, a stove communication device with this configuration can avoid the energy consumption and accelerated component aging caused by the communication device continuously transmitting the power detection signal when the user does not operate the ignition knob for a long time, indirectly saving maintenance and operating costs. Furthermore, the continuous transmission of the modified power detection signal for a period of time can also improve the range hood's success rate in receiving the power detection signal.

[0042] According to a second aspect of the present invention, a cooker is provided, which includes a panel and a valve body assembly, the valve body assembly including a valve body arranged below the panel and a valve stem passing through the panel, the cooker also includes any of the above-mentioned ignition knob assemblies, wherein the ignition knob is connected to the valve stem above the panel; and a layered drive member is fixed to the panel and is located between the panel and the ignition knob.

[0043] Exemplarily, a gap is provided between the lower surface of the housing and the high plane of the layered driving member, and the gap is greater than or equal to the height difference between the low plane and the high plane.

[0044] It can be seen from this that this ignition knob assembly can be directly used in conjunction with the existing valve body assembly, making it possible to ensure ignition by first pressing and then rotating the ignition knob, thereby improving safety of use.

[0045] According to the third aspect of the present invention, a range hood linkage system is provided, which includes: any of the above-mentioned stoves; and a range hood, which is provided with a range hood control system, the range hood control system includes a range hood communication device and a range hood control device, the range hood communication device is used to receive and send a fire detection signal to the range hood control device, and the range hood control device is used to control the working state of the range hood according to the fire detection signal.

[0046] According to the fourth aspect of the present invention, a range hood linkage device is provided, which includes: any one of the above-mentioned ignition knob components; a range hood control system, which is used to be arranged on the range hood, the range hood control system includes a range hood communication device and a range hood control device, the range hood communication device is used to receive a fire detection signal and send the fire detection signal to the range hood control device, and the range hood control device is used to control the working state of the range hood according to the fire detection signal.

[0047] According to a fifth aspect of the present invention, a range hood is provided, which includes the above-mentioned range hood and stove linkage device, and the range hood control system is arranged on the range hood.

[0048] This summary introduces a series of simplified concepts that will be further described in the detailed description. This summary is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0049] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The following drawings of the present invention are hereby incorporated into the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0051] Figure 1 is a cross-sectional view of an ignition knob assembly according to an exemplary embodiment of the present invention;

[0052] Figure 2 An exploded view of an ignition knob assembly according to an exemplary embodiment of the present invention;

[0053] Figure 3 is a cross-sectional view of a layered driving member according to an exemplary embodiment of the present invention;

[0054] Figure 4is a perspective view of a vertical moving member according to an exemplary embodiment of the present invention;

[0055] Figure 5 is a cross-sectional view of a mounting base according to an exemplary embodiment of the present invention;

[0056] Figure 6 is a front view of a cam according to an exemplary embodiment of the present invention;

[0057] Figure 7 is an assembly diagram of an electric control board and a micro switch according to an exemplary embodiment of the present invention;

[0058] Figure 8 is a bottom view of an ignition knob according to an exemplary embodiment of the present invention;

[0059] Figure 9 for Figure 3 A top view of the mid-layer drive member; and

[0060] Figure 10 Schematic diagram of various preset thresholds of the rotation angle of the ignition knob according to an exemplary embodiment of the present invention.

[0061] The above drawings include the following reference numerals:

[0062] 100, ignition knob; 110, mounting base; 111, guide hole; 1111, raised edge; 112, cam fixing center axis; 120, transmission assembly; 121, vertical moving member; 1211, first boss; 1212, second boss; 122, cam; 1221, lever; 1222, bump; 123, first transmission assembly; 124, second transmission assembly; 131, micro switch; 150, elastic member; 160 , electronic control board; 170, power supply; 180, outer shell; 181, shell; 182, top cover; 183, lower cover; 1831, bottom hole; 200, layered driving part; 210, low plane; 211, first low plane; 212, second low plane; 220, high plane; 230, bonding surface; 240, through hole; 241, notch; 251, first preset threshold; 252, second preset threshold; 253, third preset threshold. DETAILED DESCRIPTION

[0063] In the following description, a large amount of detail is provided to facilitate a thorough understanding of the present invention. However, it will be appreciated by those skilled in the art that the following description merely illustrates preferred embodiments of the present invention, and that the present invention may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well known in the art have not been described in detail.

[0064] According to one aspect of the present invention, there is provided an ignition knob assembly, such as Figure 1-2 As shown, the ignition knob assembly includes an ignition knob 100 and a layered drive member 200. In an assembled state, the ignition knob 100 is above the layered drive member 200. The ignition knob 100 can rotate relative to the layered drive member 200.

[0065] To provide a comprehensive understanding of the ignition knob assembly, this article will first briefly describe the stove it is used in. The stove includes a valve assembly, which consists of a valve body located below a panel and a valve stem extending through the panel. The ignition knob 100 is connected to the valve stem above the panel. Rotating the ignition knob 100 rotates the valve stem, controlling the gas flow from the valve body assembly, allowing the ignition knob 100 to adjust the stove's heat. A layered actuator 200 can be fixed to the stove's panel. The ignition knob 100 is connected to the valve stem of the stove's valve body assembly. The layered actuator 200 is located below the ignition knob 100 and between the panel and the ignition knob 100. Rotating the ignition knob 100 also rotates the valve stem of the valve body assembly, thereby adjusting the heat of the stove's burners. The layered actuator 200 remains in place. Except for the ignition knob assembly, the other components of the stove are all existing and therefore will not be described in further detail herein.

[0066] The ignition knob 100 includes a housing 180, a mounting base 110, a transmission assembly 120, a detection device, and a stove communication device. The mounting base 110 can be the main body of the ignition knob 100, serving as a carrier, and other components can be mounted on the mounting base 110. The mounting base 110, the detection device, and the stove communication device are all disposed within the housing 180. The mounting base 110 and the housing 180 can be separate components or a single component. The transmission assembly 120 is disposed on the mounting base 110. The lower end of the transmission assembly 120 extends from within the housing 180 to outside the lower surface of the housing 180. When the ignition knob 100 rotates above the layered drive member 200, the lower end of the transmission assembly 120 can slide on the upper surface of the layered drive member 200.

[0067] like Figure 3 and 9As shown, the upper surface of the layered drive member 200 may be provided with a low surface 210 and a high surface 220. There is a height difference between the low surface 210 and the high surface 220. Due to the unevenness of the upper surface of the layered drive member 200, the transmission assembly 120 will also change its spatial state as its lower end slides over the surface. Depending on the structure of the transmission assembly 120, the changes in its spatial state during movement may vary. For example, the change in spatial state may include a change in the vertical position of the transmission assembly 120 relative to the mounting base 110; alternatively, the change in spatial state may include a change in the rotation angle of the transmission assembly 120 about a horizontal axis; alternatively, the change in spatial state may include both of the above. A detection device can be used to detect the spatial state of the transmission assembly 120 and generate a power detection signal representing different power levels based on the spatial state. The detection device can detect the overall spatial state of the transmission assembly 120 or the spatial state of a specific component or portion of the transmission assembly 120. The stove communication device is used to transmit the power detection signal to the range hood to control the range hood's operating state.

[0068] Controlling the operating state of the range hood includes controlling the opening and closing of the range hood's air deflector, the opening angle of the air deflector, and / or the speed of the range hood's fan, among other things. For example, in a range hood equipped with a left burner and a right burner and a range hood equipped with a left air deflector and a right air deflector, the left and right air deflectors of the range hood can correspond in position to the left and right burners of the range hood. Accordingly, the range hood can control the state of the air deflectors and the operating position of the fan based on a received power detection signal. For example, when the range hood receives a signal from the range hood's communication device indicating a low power setting on the left burner, the left air deflector can be fully opened and the fan's operating position can be set to low. When the range hood receives a signal from the range hood's communication device indicating a high power setting on the left burner, the left air deflector can be fully opened and the fan's operating position can be set to high.

[0069] The transmission assembly 120 can be any device capable of transmitting information about the height difference between the lower surface 210 and the upper surface 220 on the upper surface of the layered drive member 200. Furthermore, the transmission assembly 120 can be non-elastic. This ensures that the transmission assembly 120 does not change shape due to external forces while sliding on the upper surface of the layered drive member 200. Consequently, the transmission assembly 120 can accurately reflect the information about the lower and upper surfaces in its spatial state, i.e., its position, angle, or other spatial state parameters can be adjusted based on changes in the upper and lower surfaces.

[0070] The detection device can detect the spatial state of the transmission assembly 120. In one embodiment, the vertical position of the transmission assembly 120 in the ignition knob 100 will change due to the transmission assembly 120 contacting planes at different heights. The detection device can be a displacement sensor that can detect displacement information of the height change of the transmission assembly 120. By rotating the ignition button 100, the transmission assembly 120 generates a height corresponding to the current firepower state, and the current height of the transmission assembly 120 is converted into a firepower detection signal representing different firepower. Of course, in the case where the change in the spatial state of the transmission assembly 120 is an angular change, the detection device can also use an encoder or other device that can detect the amount of angle change.

[0071] The stove communication device can be a wired or wireless communication device, as long as it can transmit the fire detection signal generated by the detection device to the range hood to further control the operating status of the range hood. In this way, the ignition knob 100 can not only control the fire level on the stove, but also transmit the fire level information to the range hood, making the range hood and stove have a linkage function.

[0072] In embodiments where the stove communication device is a wireless communication device, the wireless communication device may include an infrared communication device, a Bluetooth communication device, or a wireless high-fidelity communication device. Correspondingly, a corresponding range hood communication device may also be provided on the range hood. The infrared communication device can transmit the fire detection signal to the range hood communication device via infrared rays. The Bluetooth communication device can transmit the fire detection signal to the range hood communication device in the form of a digital signal. Wireless high-fidelity communication devices offer advantages such as low system complexity, low transmitted signal power spectrum density, insensitivity to channel fading, low interception capability, and high positioning accuracy. They are particularly suitable for high-speed wireless access in densely populated areas such as indoor spaces. The advantage of wireless connection is that it eliminates the need for a data cable connection between the stove and range hood, saving space and avoiding the hassle of wiring.

[0073] As can be seen, the ignition knob assembly provided by the present invention not only allows the stove's heat to be adjusted via the ignition knob, but also, because it includes a layered drive element, a transmission assembly, and a detection device, the ignition knob assembly itself can generate a heat detection signal representing different heat powers by detecting the spatial state of the transmission assembly. This heat detection signal is then transmitted to the range hood via a communication device. This allows users to remove the ignition knob assembly and install it on a new stove if the stove becomes damaged. This allows users to use stoves of various brands and signal types, or purchase a separate ignition knob assembly and install it on a new stove. For first-time users, they can simply purchase a range hood and ignition knob assembly with a smoke / stove linkage function, and then install the ignition knob assembly on their purchased stove. This significantly reduces user costs and increases user acceptance.

[0074] Furthermore, different firepower detection signals are generated through the interaction between the transmission assembly 120 and the layered driver 200 in the ignition knob 100. Furthermore, different combinations of high and low surfaces on the layered driver 200 enable different firepower detection signals to be generated when the ignition knob 100 is rotated to different angles. Furthermore, since different stoves may produce different firepower when the ignition knob 100 is rotated to the same angle, the ignition knob 100 can be used on any stove without changing the ignition knob 100, by combining it with different layered drivers 200, the ignition knob 100 can be used on any stove, providing a highly versatile product. Because the layered driver 200 has a simple structure and is much easier to manufacture than the ignition knob 100, designing different layered drivers 200 for different stoves can shorten the design cycle, reduce product design costs, and accelerate market adoption. Furthermore, an ignition knob assembly with this structure offers advantages such as simple structure, stable operation, high reliability, and durability.

[0075] In one embodiment, the detection device may include one or more of a micro switch 131 , a travel switch, and a proximity switch.

[0076] The micro switch 131 can have instantaneous action and a small stroke. The micro switch 131 can directly move the contact quickly by a certain force through a certain stroke, thereby realizing a sensitive switch for switching the circuit.

[0077] The proximity switch is a non-contact monitoring device that sends a signal when a moving object approaches the proximity switch within a certain distance. The proximity switch can generate a fire detection signal corresponding to the current spatial state of the transmission assembly 120 without contacting the transmission assembly 120.

[0078] A limit switch is an automatic control device that switches circuits based on the position of a moving part, controlling the direction and travel of the moving part. For example, a limit switch can be installed at the end of the travel of the transmission assembly 120 to limit its travel. When the machine moves to a predetermined position, the limit switch converts the mechanical signal into an electrical signal through the movement of the moving part, thus achieving electrical control of the machine.

[0079] It can be seen from this that this can expand the selection range of the detection device, make the detection device have multiple replaceable possibilities, and improve the scope of application.

[0080] For example, Figure 1-2 and Figure 4Shown, transmission assembly 120 can comprise vertical moving member 121.Vertical moving member 121 is movable on mounting base 110 along the vertical direction.The lower end of vertical moving member 121 is the lower end of transmission assembly.That is, after the lower end of vertical moving member 121 slides over the upper surface of layered driver 200, can make vertical moving member 121 move up and down along the height plane of layered driver 200.In one embodiment, vertical moving member 121 can be the element with certain weight, it can, in ignition knob 100 rotation processes, guarantee that the lower end of vertical moving member 121 fits with the upper surface of layered driver 200 all the time by deadweight, thereby guaranteed that the height plane information of layered driver 200 can be transmitted by vertical moving member 121 fully.Exemplarily, vertical moving member 121 can have metal material to process.

[0081] In this way, the transmission assembly 120 with this configuration has a simple transmission method, can reduce the number of parts in the ignition knob 100, is easy to implement, has a simple and stable structure, is durable and not easy to damage.

[0082] Exemplarily, the checkout device can be used to detect the vertical position of the vertical moving member 121. Wherein, the spatial state of the transmission assembly 120 comprises the vertical position of the vertical moving member 121. Because the vertical moving member 121 can produce the displacement with respect to the vertical direction of the mounting base 110, the checkout device only needs to detect the vertical position of the vertical moving member 121 and gets final product. The checkout device for the variation of the detection vertical position can be devices such as an ultrasonic range finder, a laser range finder, a proximity switch, a travel switch or a micro switch. The checkout device can be arranged on the top of the vertical moving member 121. Take the ultrasonic range finder as example. During measurement, the ultrasonic transmitter can emit ultrasonic waves to the upper end face of the vertical moving member 121. When the ultrasonic transmitter is used, timing is started at the emission moment. The ultrasonic wave returns immediately after running into the upper end face of the vertical moving member 121, and the ultrasonic receiver receives the reflected wave and just stops timing immediately. According to the time recorded by the timer, the distance between the upper end face of the vertical moving member 121 and the checkout device can be calculated. The working principle of the laser rangefinder is the same as that of the ultrasonic rangefinder, except that a different carrier is used, so it will not be described in detail.

[0083] It can be seen from this that detecting the vertical position of the vertical moving member 121 by the detection device is direct, simple and effective, without the need for excessive calculation and deduction of the change in the spatial state of the transmission component 120, thereby reducing the difficulty of using the detection device.

[0084] Exemplarily, the ignition knob 100 can also include an elastic member 150 that is arranged in the shell 180. Elastic member 150 is used for vertical moving member 121 to be applied downward force. Alternatively, elastic member 150 can be in a compressed state, for pushing vertical moving member 121 downward. Alternatively, elastic member 150 can also be in a stretched state, for pulling vertical moving member 121 downward. The installation method of elastic member 150 in the ignition knob 100 has a variety, as long as can realize its function. Like this, in the process that vertical moving member 121 rotates with the ignition knob 100, elastic member 150 can make the lower end of vertical moving member 121 contact with layered drive member 200 all the time, thereby the high and low plane information of layered drive member 200 upper surfaces can be transmitted completely through vertical moving member 121. The ignition knob with elastic member 150 has improved the accuracy and the reliability that ignition knob 100 transmits firepower detection signal in the rotation process. The elastic member 150 may be a spring, a spring washer or other device.

[0085] Further, see Figure 1 and Figure 5 , a guide hole 111 extending in the vertical direction may be provided on the mounting seat 110. The upper part of the vertical moving member 121 is installed in the guide hole 111. The guide hole 111 limits the vertical moving member 121 to be able to move only in the vertical direction. The elastic member 150 is provided in the guide hole 111 and is clamped between the vertical moving member 121 and the top of the guide hole 111. A first boss 1211 may be provided on the vertical moving member 121. The elastic member 150 may be a spring. The vertical moving member 121 may be rod-shaped. The elastic member 150 may be sleeved on the upper part of the vertical moving member 121. The lower end of the elastic member 150 may abut against the first boss 1211, and the upper end may abut against the top of the guide hole 111. The top of the guide hole 111 may be closed or open. In the open case, as Figure 5 As shown, a convex edge 1111 is provided at the top end of the guide hole 111 . The upper end of the elastic member 150 can be against the convex edge 1111 .

[0086] Guide hole 111 has guiding action to vertical moving member 121, in vertical moving member 121 up and down processes, can prevent the crookedness of vertical moving member 121, especially when the lower end of vertical moving member 121 is through the high and low plane junction of layered driver 200, layered driver 200 can produce a horizontal force component to vertical moving member 121.Guiding action by guide hole 111, can guarantee that vertical moving member 121 can not be crooked after being subjected to force component, avoids in ignition knob 100 rotation processes, produces mistake or inaccurate firepower detection signal.And guide hole 111 can also be convenient to install elastic member 150.

[0087] For example, Figure 6As shown, the transmission assembly 120 may further include a rotatable cam 122. The detection device may be used to detect the rotational position of the cam 122, that is, the rotation angle of the cam 122. The spatial state of the transmission assembly 120 described above may include the rotational position of the cam 122. The cam 122 is connected to the vertical moving member 121. In the embodiment in which the transmission assembly 120 includes the vertical moving member 121, in combination with the reference Figure 1 and Figure 4 , the vertical moving member 121 can include two first bosses 1211 and second bosses 1212 that are spaced apart from each other. The first boss 1211 is located above the second boss 1212. The cam 122 comprises a driving rod 1221 and a projection 1222. During installation, the driving rod 1221 on the cam 122 is clamped between the first boss 1211 and the second boss 1212 of the vertical moving member 121. The vertical moving member 121 moves up and down, and will drive the driving rod 1221 on the cam 122 to move by the first boss 1211 and the second boss 1212, thereby rotating the cam 122 around its own axis. During the rotation process, the projection 1222 on the cam 122 also rotates therewith, and thus, the projection 1222 also can produce displacement. In one embodiment, when the lower end of the vertical moving member 121 is on the low plane 210 of the contact layered drive member 200, the cam 122 is in the first rotation position. When the lower end of the vertical moving member 121 contacts the high plane 220 of the layer driving member 200, the cam 122 is in the second rotation position. By detecting the position of the protrusion 1222, the detection device can generate different fire detection signals.

[0088] As can be seen from this, through the transmission relationship between the vertical moving member 121 and the cam 122, the lever action produced by the first boss 1211 and the second boss 1212 on the cam 122 can convert the smaller displacement of the vertical moving member 121 in the vertical direction into the larger displacement of the projection 1222 in the vertical direction. Thereby, the drop between the high and low planes of the layered drive member 200 can be reduced, and the smaller drop can be utilized to cause the transmission assembly 120 to produce a larger displacement. The sensitivity and accuracy of the detection device to the displacement change of the transmission assembly 120 are improved. Further, the thickness of the layered drive member 200 can also be reduced, thereby reducing the size of the ignition knob assembly, making the product miniaturized and reducing the cost of the product.

[0089] For example, the cam 122 may be provided on the side of the vertical moving member 121. Figure 5 The cam 122 is rotatable in a vertical plane, that is, the axis of the cam 122 is parallel to the upper surface of the layer driving member 200. The cam 122 can be rotatably mounted on the mounting base 110 through the cam fixing central shaft 112 on the mounting base 110.

[0090] In this way, the space on the side of the vertical moving member 121 can be fully utilized to arrange the cam 122, and the movements of the vertical moving member 121 and the cam 122 do not interfere with each other, thereby further reducing the size of the ignition knob 100 and improving the internal integration of the ignition knob 100.

[0091] Exemplarily, the detection device may include a micro switch 131, which is triggered when the cam 122 is in the first rotational position or the second rotational position. Whether the micro switch 131 is triggered can represent different firepower detection signals. In one embodiment, the ignition knob 100 rotates on the layered drive member 200. When the lower end of the vertical moving member 121 contacts the low plane 210 of the layered drive member 200, the vertical moving member 121 moves downward relative to the mounting base 110. The projection 1222 of the vertical moving member 121 drives the deflector 1221 to move downward, causing the cam 122 to rotate, thereby changing the position of the projection 1222. The positional relationship between the projection 1222 and the deflector 1221 can determine the direction of movement of the projection 1222 when the vertical moving member 121 moves downward, that is, when the vertical moving member 121 moves downward, it can be set to close the micro switch 131 or it can be set to disconnect the micro switch 131. This is related to the fire detection signal to be sent, and technicians in this field can set it according to specific circumstances.

[0092] Because the microswitch 131 has a simple structure and transmits a simple signal, the fire detection signal it represents is also relatively simple, which can improve the transmission speed of the stove communication device. Furthermore, using the microswitch 131 as the detection device simplifies the transmission relationship between the transmission assembly 120 and the detection device, and through mechanical transmission, the fire detection signal can be transmitted more quickly and accurately. Using the microswitch 131 as the detection device also increases the integration of the ignition knob 100 and reduces its size.

[0093] For example, Figure 1-2 and Figure 7 As shown, the ignition knob 100 may also include an electronic control board 160 disposed within a housing 180. The electronic control board 160 is connected to the top of the mounting base 110, and a detection device and a stove communication device may be disposed on the electronic control board 160. For example, the detection device may be disposed at the bottom of the electronic control board 160. The stove communication device may be disposed at the top of the electronic control board 160 to facilitate transmission of a fire detection signal to the range hood. Depending on the type of stove communication device, the top cover 182 of the ignition knob 100 may be made of a material that is transparent to light or radio waves transmitted by the stove communication device.

[0094] The electronic control board 160 can be constructed using electronic components such as comparators, registers, and digital logic circuits, or can be implemented using processor chips such as single-chip microcomputers, microprocessors, programmable logic controllers (PLCs), digital signal processors (DSPs), field programmable gate arrays (FPGAs), programmable logic arrays (PLAs), and application-specific integrated circuits (ASICs), along with their peripheral circuits. By installing the detection device and stove communication device on the electronic control board 160, the size of the ignition knob 100 can be reduced, the level of integration can be increased, and the cost of the ignition knob assembly can be reduced.

[0095] Furthermore, a power supply 170 may be provided on the electric control board 160. The power supply 170 may be a wired power supply or a detachable power storage device such as a battery. The power supply 170 is electrically connected to the electric control board 160 to connect the electric control board 160, the detection device, and the stove communication device. Preferably, the power supply 170 may be a battery. In the case where the power supply 170 is a power storage device, the power supply 170 may be provided on top of the electric control board 160 to facilitate replacement of the power supply 170. This arrangement not only provides stable power to the electric control board 160, but also reduces the number of power supply lines if a power storage device such as a battery is used, thereby giving the ignition knob assembly the advantage of flexible installation.

[0096] Exemplarily, the housing 180 may include a shell 181 and a top cover 182. The top cover 182 is detachably connected to the shell 181. In one embodiment, the housing 180 may further include a lower cover plate 183. Figure 8 As shown, the lower cover 183 can also be provided with a bottom hole 1831 corresponding to the vertical moving member 121. A part of the vertical moving member 121 can pass through the bottom hole 1831. The lower cover 183 with the bottom hole 1831 can ensure that the vertical moving member 121 always remains in a vertical state during the up and down movement in the ignition knob 100. The outer shell serves as the outermost device of the ignition knob 100 and can protect the transmission assembly 120, detection device, stove communication device, etc. arranged inside it from high temperature and high oil pollution. At the same time, the ignition knob 100 with the outer shell can also be easily operated and easy to grasp when used by the user. The top cover 182 is detachably connected to the housing 181, which can facilitate battery replacement and overhaul of the internal components of the ignition knob 100.

[0097] For example, the lower surface of the layered driver 200 serves as an adhesive surface 230. This adhesive surface 230 allows the layered driver 200 to be adhered to the outer surface of the cooktop via an adhesive, securing the layered driver 200 in a fixed position. This securement method is simple and does not damage the cooktop panel. This allows the layered driver 200 to remain in position during rotation of the ignition knob 100, thereby improving the accuracy and stability of the fire detection signal generated by the detection device. Furthermore, the adhesive surface allows the layered driver 200 to be directly attached to the cooktop panel, without the risk of damage to the panel caused by fasteners.

[0098] For example, the layered drive member 200 can be split. For example, the portion with the lower surface 210 and the portion with the higher surface 220 can be separately provided, and the different portions of the layered drive member 200 can be fixed at different locations on the cooktop. This is sufficient as long as the layered drive member 200 can ensure that the detection device generates different fire detection signals when the ignition knob 100 is rotated to different angles.

[0099] For example, Figure 9 As shown, the layered drive member 200 can be circular, with a through hole 240 at its center. When the layered drive member 200 is mounted on the cooktop, the valve assembly rod can be passed through the through hole 240. This allows the layered drive member 200 to have an integrated structure, making it easier to secure to the cooktop panel.

[0100] Because the height of the layered driver 200 is relative to the rotation angle of the ignition knob 100, the installation orientation of the layered driver 200 is not arbitrary but rather specific, in order for the ignition knob 100 to drive the valve stem of the stove's valve assembly to rotate at an angle corresponding to the fire detection signal it transmits. Therefore, positioning marks are required on the layered driver 200. Furthermore, the edge of the through hole 240 can be provided with a notch 241. This notch 241 serves as a positioning mark, used to indicate the installation orientation of the layered driver 200.

[0101] In this way, the installation direction of the layered driving member 200 can be determined to ensure that when the ignition knob 100 is rotated, the angle at which the valve stem of the valve body assembly is rotated by the ignition knob 100 corresponds to the fire detection signal generated by the ignition knob 100 .

[0102] For example, there may be a plurality of transmission assemblies 120. The number of detection devices is equal to the number of transmission assemblies 120. The spatial state of each transmission assembly 120 is detected by the corresponding detection device.

[0103] Since there are multiple transmission assemblies 120, there are more spatial state combinations of the multiple transmission assemblies 120. Therefore, their detection devices can generate more various fire detection signals, so that the working state of the stove can be more accurately controlled according to the rotation angle of the ignition knob 100. This improves the user experience of the ignition knob assembly.

[0104] For example, there are two transmission components 120, namely a first transmission component 123 and a second transmission component 124. Figure 2 The first transmission assembly 123 and the second transmission assembly 124 are arranged on both sides of the mounting base 110, and the top surface of the layered driving member 200 is provided with a first low plane 211 and a second low plane 212 spaced apart from each other. Figure 9 shown.

[0105] When the ignition knob 100 is rotated on the cooktop, a first transmission component active area corresponding to the first transmission component 123 and a second transmission component active area corresponding to the second transmission component 124 are formed. The rotation angle of the valve stem of the valve body assembly can reach the first preset threshold 251, the second preset threshold 252 and the third preset threshold 253 during the rotation of the ignition knob 100. Figure 10 shown.

[0106] When the rotation angle of the ignition knob 100 is less than the first preset threshold 251, the lower ends of the first transmission assembly 123 and the second transmission assembly 124 are respectively located in the first low plane 211 and the second low plane 212, so that the detection device generates a first fire detection signal indicating flameout.

[0107] When the rotation angle of the ignition knob 100 is greater than or equal to the first preset threshold 251 and less than or equal to the second preset threshold 252, the lower ends of the first transmission assembly 123 and the second transmission assembly 124 are both located on the high plane 220, so that the detection device generates a second firepower detection signal representing the first firepower.

[0108] When the rotation angle of the ignition knob is greater than the second preset threshold 252 and less than or equal to the third preset threshold 253, the lower end of the first transmission assembly 123 is located on the high plane 220, and the lower end of the second transmission assembly 124 is located on the first low plane 211, so that the detection device generates a third firepower detection signal representing the second firepower, which is lower than the first firepower.

[0109] In one embodiment, when the counterclockwise rotation angle of the ignition knob 100 is less than a first preset threshold, no gas has yet flowed through the valve body assembly. Due to manufacturing tolerances and other reasons, when the ignition knob 100 is rotated a small amount, no gas has yet flowed through the valve body assembly. The size of the first preset threshold is related to manufacturing tolerances. Based on stoves on the market, the first preset threshold can be 20 to 30 degrees. When the counterclockwise rotation angle of the ignition knob 100 is less than the first preset threshold, the lower ends of the first transmission assembly 123 and the second transmission assembly 124 are respectively located on the first low plane 211 and the second low plane 212. In the embodiment where the detection device is a microswitch 131, neither of the two transmission assemblies 120 triggers the corresponding two microswitches. The first fire detection signal generated by the detection device can indicate flameout.

[0110] When the counterclockwise rotation angle of the ignition knob 100 is between the first and second preset thresholds, a large amount of gas flows through the corresponding valve body assembly, thus generating a high fire on the stove. Based on experience, the second preset threshold can be between 120 and 135 degrees. When the rotation angle of the ignition knob 100 is between the first and second preset thresholds, the lower ends of the first transmission assembly 123 and the second transmission assembly 124 are both located on the high plane 220. At this point, the two transmission assemblies 120 can trigger both corresponding microswitches. The second fire detection signal generated by the detection device can indicate a high fire.

[0111] The third preset threshold is the maximum rotation angle of the ignition knob 100. Based on experience, the third preset threshold can be between 165 and 175 degrees. When the rotation angle of the ignition knob 100 exceeds the second preset threshold but is not greater than the third preset threshold, the lower end of the first transmission assembly 123 is located within the second lower plane 212, while the second transmission assembly 124 is located on the upper plane 220. At this point, the first transmission assembly 123 disconnects the corresponding microswitch, while the microswitch corresponding to the second transmission assembly 124 remains in the triggered state. The third fire detection signal generated by the detection device can indicate a low fire.

[0112] Thus, it can be seen that the ignition knob assembly with this structure can be combined into multiple states by the position of the high and low planes of the layered driving member 200 and the coordination between the transmission assembly 120, thereby representing different fire states and generating different fire detection signals. The range hood is controlled by different fire detection signals.

[0113] The above embodiments are merely exemplary. The positions and numbers of the high and low planes of the layered driving member 200 and the number of the transmission components 120 may have different implementations and are not limited to the above embodiments.

[0114] Exemplarily, when the fire detection signal changes, the stove communication device continuously transmits the changed fire detection signal for a predetermined period of time. In other words, after the fire detection signal changes, the fire detection signal will continue to be transmitted for a predetermined period of time. For example, when the user turns the ignition knob from high to low, the fire detection signal corresponding to low heat may continue to be transmitted for a predetermined period of time, which may be between 5 and 15 seconds. After the time period has expired, the fire detection signal will cease transmission. This functionality can be implemented using a combination of a timer, memory, and other devices within the electronic control board 160, which is well known to those skilled in the art and will not be further described.

[0115] As can be seen, a stove communication device with this configuration can avoid the energy consumption and accelerated component aging caused by the communication device continuously transmitting the power detection signal when the user does not operate the ignition knob 100 for a long time, indirectly saving maintenance and operating costs. Furthermore, the continuous transmission of the modified power detection signal for a period of time can also improve the range hood's success rate in receiving the power detection signal.

[0116] According to a second aspect of the present invention, a stove is provided, which may include a panel, a valve assembly, and any of the above-described ignition knob assemblies. As previously described, the ignition knob 100 is connected to the valve stem of the valve assembly above the panel. Rotating the valve stem by the ignition knob 100 adjusts the stove's heat. A layered drive element 200 may be fixed to the panel and located between the panel and the ignition knob 100. While adjusting the stove's heat, the ignition knob 100 may also transmit a corresponding heat detection signal.

[0117] For example, when the user does not operate the ignition knob 100 , a gap is provided between the lower surface of the housing 180 and the upper plane 220 of the layered driving member 200 . The gap may be greater than or equal to the height difference between the lower plane 210 and the upper plane 220 .

[0118] In one embodiment, when the flame is off, assuming the detection device is a microswitch, the lower end of the transmission assembly 120 contacts the lower surface 210, but does not trigger the microswitch. In existing valve body assemblies, to prevent accidental operation or children from touching the ignition knob, the ignition knob is typically pressed and rotated counterclockwise by a predetermined angle to begin ignition. Pressing the ignition knob unlocks the child lock. To ensure compatibility with existing valve body assemblies, the ignition knob 100 of the present application has a gap between the lower surface of the housing 180 and the upper surface 220 of the layered drive element 200. Pressing the ignition knob 100 causes the lower end of the transmission assembly 120 to move upward relative to the other components of the ignition knob 100, thereby triggering the microswitch and enabling the cooktop to ignite accordingly. After rotating the ignition knob by the predetermined angle, the user releases the ignition knob, and the lower end of the transmission assembly 120 rests on the upper surface 220. After the user releases their grip, the ignition knob 100 springs upward under the action of the valve body assembly. Since the lower end of the transmission assembly 120 is located on the high surface 220 after the user releases the ignition knob 100, the microswitch remains triggered. The distance between the lower surface of the housing 180 and the high surface 220 of the layered drive member 200 is greater than or equal to the height difference between the low surface 210 and the high surface 220, ensuring that the ignition knob 100 remains in its initial position. To ignite the fire, the user can press the ignition knob 100 until the transmission assembly 120 moves upward relative to the other components of the ignition knob 100, triggering the microswitch.

[0119] It can be seen from this that this ignition knob assembly can be directly used in conjunction with the existing valve body assembly, making it possible to ensure ignition by first pressing and then rotating the ignition knob 100, thereby improving safety of use.

[0120] According to a third aspect of the present invention, a range hood linkage system is provided, comprising any of the aforementioned stoves and a range hood. The range hood is provided with a range hood control system, which includes a range hood communication device and a range hood control device. The range hood communication device is configured to receive a fire detection signal and transmit the signal to the range hood control device. The range hood control device is configured to control the operating state of the range hood based on the received fire detection signal.

[0121] According to a fourth aspect of the present invention, a range hood linkage device is provided, comprising any of the aforementioned ignition knob assemblies and a range hood control system. The range hood control system can be mounted on a range hood and includes a range hood communication device and a range hood control device. The range hood communication device is configured to receive and transmit a fire detection signal to the range hood control device, which is configured to control the operating state of the range hood based on the fire detection signal.

[0122] According to a fifth aspect of the present invention, a range hood with a range hood-stove linkage device is provided, which includes any of the above-mentioned range hood-stove linkage devices, and a range hood control system is arranged on the range hood.

[0123] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0124] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatially relative terms include not only the orientation of the components as described in the figures, but also different orientations during use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0125] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0126] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0127] The present invention has been described through the above-described embodiments. However, it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ignition knob assembly, characterized in that: It includes: An ignition knob (100) comprises a housing (180), a mounting base (110), a transmission assembly (120), a detection device, and a stove communication device, wherein the mounting base, the detection device, and the stove communication device are arranged in the housing, the transmission assembly is arranged on the mounting base, the lower end of the transmission assembly extends from the inside of the housing to the outside of the lower surface of the housing, the transmission assembly (120) comprises a vertical moving member (121) and a rotatable cam (122), the vertical moving member is movable in a vertical direction, the lower end of the vertical moving member is the lower end of the transmission assembly, the cam is connected to the vertical moving member (121), the detection device is used to detect the rotational position of the cam, the detection device is further used to detect the spatial state of the transmission assembly, and generate a fire detection signal representing different fire powers according to the spatial state, the spatial state including the rotational position of the cam, and the stove communication device is used to transmit the fire detection signal to the range hood to control the working state of the range hood; and A layered driving member (200) is provided with a low plane (210) and a high plane (220) on its upper surface, wherein when the lower end of the vertical moving member is on the low plane (210), the cam is in a first rotational position; and when the lower end of the vertical moving member is on the high plane (220), the cam is in a second rotational position; In which, in the assembled state, the ignition knob is rotatable relative to the layered drive member above the layered drive member, and the lower end of the transmission assembly slides on the low plane and the high plane during the rotation of the ignition knob to change its spatial state.

2. The ignition knob assembly according to claim 1, wherein: The detection device is used to detect the vertical position of the vertical moving member (121), and the spatial state includes the vertical position of the vertical moving member.

3. The ignition knob assembly according to claim 1, wherein: The ignition knob (100) further comprises an elastic member (150) disposed in the housing, the elastic member being used to apply a downward force to the vertical moving member (121).

4. The ignition knob assembly according to claim 3, wherein: A guide hole (111) extending in a vertical direction is provided on the mounting seat (110); the upper portion of the vertical moving member (121) is installed in the guide hole; and the elastic member (150) is provided in the guide hole and clamped between the vertical moving member and the top end of the guide hole.

5. The ignition knob assembly according to claim 1, wherein: The cam is arranged on the side of the vertical moving member (121), and the cam (122) is rotatable in a vertical plane.

6. The ignition knob assembly according to claim 1, wherein: The detection device comprises a micro switch (131), and the micro switch is triggered when the cam (122) is in the first rotation position or the second rotation position.

7. The ignition knob assembly according to claim 1, wherein: The detection device includes one or more of a micro switch (131), a travel switch, and a proximity switch.

8. The ignition knob assembly according to claim 1, wherein: The ignition knob (100) further comprises an electric control board (160) disposed in the housing, the electric control board being connected to the top of the mounting seat (110), and the detection device and the stove communication device being disposed on the electric control board.

9. The ignition knob assembly according to claim 8, wherein: The electric control board is also provided with a power supply (170), which is electrically connected to the electric control board (160).

10. The ignition knob assembly according to claim 1, wherein: The housing comprises a shell (181) and a top cover (182), the top cover being detachably connected to the shell.

11. The ignition knob assembly according to claim 1, wherein: The lower surface of the layered driving member (200) is an adhesive surface (230).

12. The ignition knob assembly according to claim 1, wherein: The layered driving member (200) is circular, and a through hole (240) is provided at the center of the layered driving member.

13. The ignition knob assembly according to claim 12, wherein: A notch (241) is provided at the edge of the through hole (240), and the notch is used to mark the installation direction of the layered driving member (200).

14. The ignition knob assembly according to claim 1, wherein: The number of the transmission components (120) is multiple, the number of the detection devices is equal to the number of the transmission components, and the spatial state of each transmission component is detected by the corresponding detection device.

15. The ignition knob assembly according to claim 1, wherein: The number of the transmission components (120) is two, namely a first transmission component (123) and a second transmission component (124). The first transmission component and the second transmission component are arranged on both sides of the mounting seat (110) relative to each other. The top surface of the layered driving member (200) is provided with a first low plane (211) and a second low plane (212) which are spaced apart. When the rotation angle of the ignition knob (100) is less than a first preset threshold, the lower ends of the first transmission assembly and the second transmission assembly are respectively located on the first low plane and the second low plane, so that the detection device generates a first fire detection signal indicating flameout; When the rotation angle of the ignition knob is greater than or equal to the first preset threshold and less than or equal to the second preset threshold, the lower ends of the first transmission assembly and the second transmission assembly are both located on the high plane, so that the detection device generates a second firepower detection signal representing the first firepower; and When the rotation angle of the ignition knob is greater than the second preset threshold and less than or equal to the third preset threshold, the lower end of the first transmission assembly is located on the high plane, and the lower end of the second transmission assembly is located on the first low plane, so that the detection device generates a third firepower detection signal representing a second firepower, and the second firepower is lower than the first firepower.

16. The ignition knob assembly of claim 1, wherein: The stove communication device continuously transmits the changed fire power detection signal for a predetermined period of time when the fire power detection signal changes.

17. A stove comprising a panel and a valve assembly, wherein the valve assembly comprises a valve body disposed below the panel and a valve stem passing through the panel, wherein: The cooker further comprises an ignition knob assembly according to any one of claims 1 to 16, wherein The ignition knob (100) is connected to the valve stem above the panel; and The layered driving member (200) is fixed on the panel and is located between the panel and the ignition knob.

18. The cooker according to claim 17, wherein: A gap is provided between the lower surface of the housing (180) and the high plane (220) of the layered driving member (200), and the gap is greater than or equal to the height difference between the low plane (210) and the high plane.

19. A smoke and stove linkage system, characterized in that: It includes: The cooker according to claim 17 or 18; as well as The range hood is provided with a range hood control system, which includes a range hood communication device and a range hood control device. The range hood communication device is used to receive and send the fire detection signal to the range hood control device, and the range hood control device is used to control the working state of the range hood according to the fire detection signal.

20. A smoke and stove linkage device, characterized in that: It includes: The ignition knob assembly according to any one of claims 1 to 16; A range hood control system is used to be set on a range hood, and the range hood control system includes a range hood communication device and a range hood control device. The range hood communication device is used to receive the fire detection signal and send the fire detection signal to the range hood control device, and the range hood control device is used to control the working state of the range hood according to the fire detection signal.

21. A range hood, characterized in that: It includes the range hood linkage device as claimed in claim 20, and the range hood control system is arranged on the range hood.

Images