Knob assembly and stove

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to a knob assembly and a stove. The knob assembly comprises a knob, a gear detection mechanism and a display mechanism, the gear detection mechanism comprises a first circuit board and a second circuit board which are arranged in a preset direction, the first circuit board is fixedly connected with the knob, one of the first circuit board and the second circuit board comprises a conductive part, and the other of the first circuit board and the second circuit board comprises an elastic telescopic PIN needle. The free end of the elastic telescopic PIN abuts against the conductive part and can slide in the circumferential direction of the conductive part so as to be used for obtaining gear information of the valve body, and the display mechanism is in communication connection with the first circuit board and / or the second circuit board and used for displaying image information corresponding to the gear information. In the rotating process of the knob, the conductive part and the elastic telescopic PIN are always in effective contact and communication transmission, the error-tolerant rate of the knob assembly is high, the requirement for the installation distance of the knob assembly is low, and the use reliability of the knob assembly is high.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a knob assembly and a cooker. Background Art

[0002] The knob on the existing gas cooker only roughly indicates the current gear through an icon, resulting in low recognition of the gear indication. It is difficult for users to quickly and accurately judge the current gear, thus reducing the user experience.

[0003] To solve the above problems, the prior art provides a knob assembly. The knob drives a conductive member to rotate. When the knob is adjusted to a certain gear, the lighting member of this gear can be connected to the power supply, thereby lighting the lighting member of this gear, and the lighting member can clearly display the current gear.

[0004] However, the conductive member is usually a spring sheet structure. The elastic deformation of the spring sheet structure is small and the elastic deformation force is small. Therefore, the error tolerance rate of the knob assembly is low and the requirement for the installation spacing is high, and the reliability of the knob assembly is poor.

[0005] Therefore, it is urgent to design a new knob assembly and a cooker to improve the problem of poor reliability of the knob assembly. Summary of the Utility Model

[0006] According to one aspect of the present utility model, a knob assembly is proposed, which effectively improves the reliability of the knob assembly in use.

[0007] To achieve this purpose, the present utility model adopts the following technical solutions:

[0008] A knob assembly is used to cooperate with the valve body of the valve body. The knob assembly includes:

[0009] A knob that can rotate relative to the valve body;

[0010] A gear detection mechanism. The gear detection mechanism includes a first circuit board and a second circuit board arranged along a preset direction. The first circuit board is fixedly connected to the knob. One of the first circuit board and the second circuit board includes a conductive part, and the other includes an elastic telescopic PIN needle. The free end of the elastic telescopic PIN needle abuts against the conductive part and can slide along the circumference of the conductive part to obtain the gear information of the valve body; and

[0011] A display mechanism is communicatively connected to the first circuit board and / or the second circuit board. The display mechanism is used to display the image information corresponding to the gear information.

[0012] As an optional solution, the elastic telescopic PIN needle includes a needle tube, an elastic member, and a needle tip. The needle tube includes a cavity with an open end. The needle tip is inserted into the cavity through the open end. The elastic member is disposed in the cavity and located between the needle tube and the bottom wall of the cavity.

[0013] As an optional solution, the open end extends inward to form a first limiting portion. The needle tip includes a contact portion and a second limiting portion connected to each other. The second limiting portion is located in the cavity. The first limiting portion and the second limiting portion cooperate to limit the extreme position of the needle tip.

[0014] As an optional solution, the free end of the needle tip is a convex spherical surface.

[0015] As an optional solution, the knob assembly further includes a power source. The elastic telescopic PIN needle includes a first elastic telescopic PIN needle and a second elastic telescopic PIN needle. The first elastic telescopic PIN needle is electrically connected to the positive pole of the power source, and the second elastic telescopic PIN needle is electrically connected to the negative pole of the power source. The conductive portion includes a first conductive portion and a second conductive portion. One of the first conductive portion and the second conductive portion includes a plurality of electrodes, and each electrode corresponds to one gear information. The other is an integral structure extending along the rotation direction of the knob;

[0016] The first elastic telescopic PIN needle always abuts against the integral structure, and the second elastic telescopic PIN needle can selectively abut against any one of the electrodes.

[0017] As an optional solution, one first elastic telescopic PIN needle is provided, and at least two second elastic telescopic PIN needles are provided. The at least two second elastic telescopic PIN needles are connected in parallel; when the knob rotates, only one second elastic telescopic PIN needle always abuts against the corresponding electrode.

[0018] As an optional solution, two second elastic telescopic PIN needles are provided, and a plurality of electrodes are provided as two electrode groups. The adjacent two electrodes of each electrode group are spaced along the rotation direction of the knob, and each second elastic telescopic PIN needle can slide along the corresponding electrode group.

[0019] As an optional solution, two second elastic telescopic PIN needles are provided, and a plurality of electrodes are arranged at intervals along the rotation direction of the knob. When one second elastic telescopic PIN needle abuts against the electrode, the other second elastic telescopic PIN needle is located between two adjacent electrodes.

[0020] As an optional solution, the knob has a center line LC , two sets of the electrode groups are arranged on both sides of the center line L C and are coaxially arranged, and the first conductive part and the second conductive part are arranged radially along the knob and are spaced apart.

[0021] As an optional solution, the knob has a center line L C , two sets of the electrode groups are arranged on the same side of the center line L C and are coaxially arranged, two sets of the electrode groups are arranged radially along the knob and are spaced apart, and the electrodes of the two sets of the electrode groups are alternately arranged in sequence along the rotation direction of the knob.

[0022] As an optional solution, the knob includes a light-transmitting end plate, and the knob is provided with a receiving cavity, and the display mechanism is arranged in the receiving cavity.

[0023] As an optional solution, the display mechanism includes a third circuit board and an LED lamp electrically connected thereto, and the third circuit board is communicatively connected to the first circuit board and / or the second circuit board.

[0024] As an optional solution, the display mechanism includes a third circuit board and a plurality of LED lamps electrically connected thereto, and each LED lamp corresponds to the gear information one by one.

[0025] According to another aspect of the present invention, a cooker is provided, which effectively improves the adjustment accuracy.

[0026] To achieve this purpose, the present invention adopts the following technical solutions:

[0027] A cooker includes a valve body, the valve body includes a valve body main body and a valve rod arranged thereon, the cooker further includes the knob assembly as described above, and the valve rod is fixedly connected to the knob.

[0028] The beneficial effects of the present invention:

[0029] The knob assembly provided by the present invention includes a knob, a gear detection mechanism and a display mechanism. The gear detection mechanism includes a first circuit board and a second circuit board arranged along a preset direction. The first circuit board is fixedly connected to the knob. One of the first circuit board and the second circuit board includes a conductive part, and the other of the two includes an elastic telescopic PIN needle. The free end of the elastic telescopic PIN needle abuts against the conductive part and can slide along the circumferential direction of the conductive part to obtain the gear information of the valve body. The display mechanism is communicatively connected to the first circuit board and / or the second circuit board, and the display mechanism is used to display the image information corresponding to the gear information.

[0030] Since an elastic member such as a spring is provided inside the elastic telescopic PIN needle, the elastic telescopic PIN needle has a large elastic deformation amount and a large elastic restoring force. Therefore, the setting of the elastic telescopic PIN needle can ensure that during the rotation of the knob, the conductive part and the elastic telescopic PIN needle always have good effective contact and communication transmission. At the same time, the knob assembly has a high error tolerance, low requirements for the installation spacing of the knob assembly, and high reliability in use.

[0031] The cooking appliance provided by the present utility model includes the knob assembly mentioned above, effectively improving the adjustment accuracy of the cooking appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of the knob assembly and the valve body provided in Embodiment 1 of the present utility model;

[0033] Figure 2 It is a cross-sectional view of the knob assembly and the valve body provided in Embodiment 1 of the present utility model;

[0034] Figure 3 It is a cross-sectional view of the elastic telescopic PIN needle provided in Embodiment 1 of the present utility model;

[0035] Figure 4 It is a working principle diagram of the knob assembly provided in Embodiment 1 of the present utility model;

[0036] Figure 5 It is a schematic structural diagram of the fixed component and the rotating component in the first relative position provided in Embodiment 1 of the present utility model;

[0037] Figure 6 It is a schematic structural diagram of the fixed component and the rotating component in the second relative position provided in Embodiment 1 of the present utility model;

[0038] Figure 7 It is a schematic structural diagram of the fixed component and the rotating component in the first relative position provided in Embodiment 2 of the present utility model;

[0039] Figure 8 It is a schematic structural diagram of the fixed component and the rotating component in the second relative position provided in Embodiment 2 of the present utility model; [[ID=3-eight]]

[0040] Figure 9 It is a schematic structural diagram of the fixed component and the rotating component in the first relative position provided in Embodiment 3 of the present utility model;

[0041] Figure 10 It is a schematic structural diagram of the fixed component and the rotating component in the second relative position provided in Embodiment 3 of the present utility model;

[0042] Figure 11It is the working principle diagram of the knob assembly provided in the fourth embodiment of the present utility model;

[0043] Figure 12 It is the structural schematic diagram of the knob and the display mechanism provided in the fourth embodiment of the present utility model;

[0044] Figure 13 It is the cross-sectional view of the knob and the display mechanism provided in the fourth embodiment of the present utility model.

[0045] In the figure:

[0046] 100. Knob assembly; 200. Valve body; 210. Valve body main body; 220. Valve rod;

[0047] 10. Knob; 11. Translucent end plate; 12. Side peripheral plate; 13. Accommodating cavity; 131. Inner cavity; 14. Light shielding baffle;

[0048] 20. Gear position detection mechanism; 21. Fixing component; 211. First circuit board; 2111. First circuit board main body; 2112. Elastic telescopic PIN needle; 21121. Needle tube; 211211. Cavity; 211212. First limiting part; 21122. Elastic part; 21123. Needle tip; 211231. Contact part; 211232. Second limiting part; 21124. First elastic telescopic PIN needle; 21125. Second elastic telescopic PIN needle; 212. First mounting part; 2121. Buckle; 213. Guide through hole; 22. Rotating component; 221. Second circuit board; 2211. Second circuit board main body; 2212. Conductive part; 221-21. First conductive part; 22122. Second conductive part; 221221. Electrode group; 2212211. Electrode; 2213. Resistor; 222. Second mounting part; 23. Guide part; 24. Reset part;

[0049] 30. Display mechanism; 31. Third circuit board; 32. LED lamp;

[0050] 40. Power supply;

[0051] 50. Limiting part;

[0052] 60. C-shaped snap ring. Specific implementation manners

[0053] The technical solution of the present utility model will be further described below in conjunction with the drawings and the implementation manners. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model are shown in the drawings rather than all of them.

[0054] In the description of the present utility model, unless otherwise clearly specified and defined, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0055] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0056] In the description of the embodiments of the present disclosure, the orientation or positional relationships such as "above", "below", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for differentiation in description and have no special meanings.

[0057] Embodiment 1

[0058] As Figure 1 shown, an embodiment of the present disclosure discloses a cooking appliance 100, which includes a burner (not shown in the figure), a valve body 200, and a knob assembly 100. The valve body 200 includes a valve body main body 210 and a valve rod set thereon 220. The valve body main body 210 is in communication with the burner. The knob assembly 100 includes a knob 10, and the valve rod 220 is fixedly connected to the knob 10. By pressing the knob 10 and rotating the knob 10 in a combined action, the adjustment of different gears of the valve body 200 can be achieved, so as to achieve the adjustment of the flame mode and / or size of the burner.

[0059] The mechanical valve type knob on the existing cooking appliance 100 only roughly indicates the current gear through an icon, resulting in low recognition of the gear indication. It is very difficult for users to quickly and accurately judge the current gear, thus reducing the user experience.

[0060] To solve the above problems, the prior art provides a knob assembly 100. The knob 10 drives the conductive member to rotate. When the knob 10 is adjusted to a certain gear position, the lighting member of that gear position is connected to the power supply, thereby lighting the lighting member of that gear position, facilitating the user to quickly and accurately identify different gear positions of the valve body 200, and improving the user experience.

[0061] However, the aforementioned conductive member is usually a shrapnel structure. The elastic deformation of the shrapnel structure is small and the elastic deformation force is small. Therefore, the error tolerance rate of the knob assembly 100 is low and the requirement for the installation spacing is high, and the reliability of use of the knob assembly 100 is poor.

[0062] To solve the above problems, as Figure 1 and Figure 2 shown, the knob assembly 100 provided by the embodiment of the present disclosure further includes a gear position detection mechanism 20 and a display mechanism 30. The gear position detection mechanism 20 includes a fixed component 21 and a rotating component 22 arranged in the up and down direction. The fixed component 21 includes a first circuit board 211, and the rotating component 22 includes a second circuit board 221. The first circuit board 211 is directly or indirectly fixedly connected to the knob 10. One of the first circuit board 211 and the second circuit board 221 includes a conductive portion 2212, and the other includes an elastic telescopic PIN needle 2112. The free end of the elastic telescopic PIN needle 2112 abuts against the conductive portion 2212 and can slide along the circumferential direction of the conductive portion 2212 to obtain the gear position information of the valve body 200. The display mechanism 30 is communicatively connected to the first circuit board 211 and / or the second circuit board 221. The display mechanism 30 is used to display the image information corresponding to the gear position information. By rotating the knob 10, the display mechanism 30 can accurately display different gear positions of the valve body 200, and the user can quickly and accurately identify different gear positions of the valve body 200, improving the user experience. In addition, since an elastic member 21122 such as a spring is provided inside the elastic telescopic PIN needle 2112, the elastic deformation amount of the elastic telescopic PIN needle 2112 is large and the elastic restoring force is large. Therefore, the setting of the elastic telescopic PIN needle 2112 can ensure that during the rotation of the knob 10, the conductive portion 2212 and the elastic telescopic PIN needle 2112 are always in good effective contact and communication transmission. At the same time, the error tolerance rate of the knob assembly 100 is high, the requirement for the installation spacing of the knob assembly 100 is low, and the reliability of use of the knob assembly 100 is relatively high.

[0063] Specifically, as Figure 2 shown, the first circuit board 211 includes a first circuit board body 2111 and an elastic telescopic PIN needle 2112 provided thereon and electrically connected thereto. The second circuit board 221 includes a second circuit board body 2211 and a conductive portion 2212 provided thereon and electrically connected thereto.

[0064] In an optional embodiment, as Figure 3 shown, the elastic telescopic PIN needle 2112 includes a needle tube 21121, an elastic member 21122, and a needle tip 21123. The needle tube 21121 includes a cavity 211211 with an open end. The needle tip 21123 is inserted into the cavity 211211 from the open end. The elastic member 21122 is disposed in the cavity 211211 and between the needle tube 21121 and the bottom wall of the cavity 211211. With the above structure, a better abutting effect between the elastic telescopic PIN needle 2112 and the conductive part 2212 can be achieved. Exemplarily, the elastic member 21122 can be a spring, rubber, a reset cylinder, etc. All structures that can achieve the elastic telescopic movement of the needle tip 21123 relative to the needle tube 21121 are within the protection scope of this optional embodiment.

[0065] In an optional embodiment, as Figure 3 shown, the open end extends inward to form a first limiting portion 211212. The needle tip 21123 includes a contact portion 211231 and a second limiting portion 211232 connected to each other. The second limiting portion 211232 is located in the cavity 211211. The first limiting portion 211212 and the second limiting portion 211232 cooperate to limit the extreme position of the needle tip 21123. Through the cooperation of the first limiting portion 211212 and the second limiting portion 211232, the needle tip 21123 can be prevented from disengaging and separating from the needle tube 21121.

[0066] In an optional embodiment, as Figure 4 shown, the knob assembly 100 further includes a power source 40. The elastic telescopic PIN needle 2112 includes a first elastic telescopic PIN needle 21124 and a second elastic telescopic PIN needle 21125. The first elastic telescopic PIN needle 21124 is electrically connected to the positive pole of the power source 40, and the second elastic telescopic PIN needle 21125 is electrically connected to the negative pole of the power source 40. The conductive part 2212 includes a first conductive part 22121 and a second conductive part 22122. The second conductive part 22122 includes a plurality of electrodes 2212211. Each electrode 2212211 corresponds to a gear information one by one. The first conductive part 22121 is an integral structure extending along the rotation direction of the knob 10. The first elastic telescopic PIN needle 21124 always abuts against the integral structure. The second elastic telescopic PIN needle 21125 can selectively abut against any one of the electrodes 2212211. When the second elastic telescopic PIN needle 21125 abuts against any one of the electrodes 2212211, the display mechanism 30 can display the image information corresponding to the gear information corresponding to the electrode 2212211, so as to realize the display of the current gear of the valve body 200 by the display mechanism 30.

[0067] In an alternative embodiment, it is also possible that the first conductive part 22121 includes a plurality of electrodes 2212211, each electrode 2212211 corresponding to a gear position information one by one, and the second conductive part 22122 is an integral structure extending along the rotation direction of the knob 10, and the above effects can also be achieved.

[0068] In an alternative embodiment, it is also possible to interchange the structures of the first elastic telescopic PIN needle 21124 and the first conductive part 22121, and interchange the structures of the second elastic telescopic PIN needle 21125 and the second conductive part 22122, and the above effects can also be achieved.

[0069] In an alternative embodiment, the image information may be at least one of different brightnesses displayed by the display mechanism 30, different colors displayed by the display mechanism 30, different graphics displayed by the display mechanism 30, and different range areas displayed by the display mechanism 30. It should be noted that the description of the image information in this alternative embodiment is only some of the listed ways, and all image information that can reflect different gears in the art is within the protection scope of this alternative embodiment.

[0070] Exemplarily, as Figure 4 shown, the image information may be different brightnesses displayed by the display mechanism 30. For the convenience of understanding, the second conductive part 22122 includes five electrodes 2212211. This alternative embodiment only describes the scenario where each electrode 2212211 corresponds to a gear position one by one. This description does not impose a mandatory limitation on "matching" or "corresponding". The five electrodes 2212211 respectively correspond to the a gear, b gear, c gear, d gear, and e gear of the valve body 200 from left to right. A corresponding resistor 2213 is connected in series downstream of each electrode 2212211. The five resistors 2213 are connected in parallel and then electrically connected to the negative terminal of the display mechanism 30. The positive terminal of the display mechanism 30 is electrically connected to the first conductive part 22121. The resistance values of each resistor 2213 are different. By adjusting the connection between the second elastic telescopic PIN needle 21125 and different electrodes 2212211, the current output by the power supply 40 to the display mechanism 30 is different, so that the brightness displayed by the display mechanism 30 at different gears of the valve body 200 can be different.

[0071] Of course, in other alternative embodiments, the number of electrodes 2212211 can also be three, four, six or more, and the number of electrodes 2212211 only needs to correspond to or match the gear positions of the valve body 200 to be displayed. It should be noted here that the correspondence or matching between the number of electrodes 2212211 and the gear positions of the valve body 200 to be displayed is not only a one-to-one correspondence, but can also be a many-to-one correspondence, a one-to-many correspondence, etc. Exemplarily, two electrodes 2212211 can correspond to one gear position of the valve body 200 at the same time, and two electrodes 2212211 can also correspond to one gear position of the valve body 200 at the same time.

[0072] Specifically, as Figure 2 and Figure 4 shown, the display mechanism 30 includes a third circuit board 31 and an LED lamp 32 electrically connected thereto. The third circuit board 31 includes a negative terminal and a positive terminal. Five resistors 2213 are connected in parallel and electrically connected to the negative terminal, and the positive terminal is electrically connected to the first conductive part 22121.

[0073] In an alternative embodiment, as Figure 3 shown, the free end of the needle 21123 is a convex spherical surface, which can ensure the point contact between the elastic telescopic PIN needle 2112 and the electrode 2212211, and can avoid the contact of one elastic telescopic PIN needle 2112 with two or more electrodes 2212211 at the same time, ensuring that the display mechanism 30 accurately displays the image information in different gear positions.

[0074] Specifically, as Figures 4 to 6 shown, the first elastic telescopic PIN needle 21124 is set to one, and the second elastic telescopic PIN needle 21125 is set to at least two. At least two second elastic telescopic PIN needles 21125 are connected in parallel. When the knob 10 rotates, only one second elastic telescopic PIN needle 21125 always abuts against the corresponding electrode 2212211. During the gear position switching process of the valve body 200, the foregoing setting can ensure that the image information of the display mechanism 30 is continuously displayed, and can avoid the abnormal occurrence of the image information displayed by the display mechanism 30 during the gear shift, and avoid the misjudgment of the user's recognition of the image information.

[0075] In addition, as Figure 2 , Figure 5 and Figure 6 shown, by setting a larger number of elastic telescopic PIN needles 2112, a better parallelism between the first circuit board 211 and the second circuit board 221 can be achieved, ensuring better strength and hardness of the overall knob assembly 100.

[0076] Specifically, as Figures 4 to 6As shown, two second elastic telescopic PIN pins 21125 are provided, and multiple electrodes 2212211 are arranged at intervals along the rotation direction of the knob 10. When one second elastic telescopic PIN pin 21125 abuts against an electrode 2212211, the other second elastic telescopic PIN pin 21125 is located between two adjacent electrodes 2212211. The structures of the two second elastic telescopic PIN pins 21125 are compact and convenient for assembly.

[0077] As Figure 5 and Figure 6 shown, the knob 10 has a center line L C , the first conductive part 22121 and the second conductive part 22122 are symmetrically distributed on both sides of the center line L C , which can achieve a reasonable and compact arrangement of the first conductive part 22121 and the second conductive part 22122 in the circumferential direction, and can effectively reduce the size of the second circuit board body 2211 in the radial direction.

[0078] In an optional embodiment, as Figure 2 shown, the knob 10 includes a light-transmitting end plate 11 and is provided with a receiving cavity 13. The display mechanism 30 is arranged in the receiving cavity 13. The knob 10 can achieve a good protection effect on the display mechanism 30, avoiding contamination of the display mechanism 30 by external impurities or oil. Exemplarily, the light-transmitting end plate 11 can be a transparent acrylic plate, a light-transmitting glass, etc. All materials that can achieve light transmission are within the protection scope of this optional embodiment.

[0079] In an optional embodiment, as Figure 2 shown, the knob 10 further includes a side peripheral plate 12. The side peripheral plate 12 has an upper port. The light-transmitting end plate 11 is arranged at the upper port, and the light-transmitting end plate 11 and the side peripheral plate 12 together form the receiving cavity 13. In addition, the light-transmitting end plate 11 and the side peripheral plate 12 can be hermetically fixed by a glue injection process, which can further prevent external impurities or oil from contaminating the display mechanism 30.

[0080] In an optional embodiment, as Figure 2 shown, the fixing component 21 further includes a first mounting member 212. The first circuit board 211 is fixedly connected to the first mounting member 212. The first mounting member 212 can achieve a stable support for the first circuit board 211, avoiding bending of the first circuit board 211 and ensuring the long-term use of the circuits and electrical components on the first circuit board 211.

[0081] Exemplarily, as Figure 2As shown, the first circuit board 211 and the first mounting member 212 can be fixed by means of snap fasteners 2121, screws, bonding, etc. All the ways that can achieve the fixed connection between the first circuit board 211 and the first mounting member 212 are within the protection scope of this optional embodiment.

[0082] In an optional embodiment, as Figure 2 shown, the rotating assembly 22 further includes a second mounting member 222. The second circuit board 221 is fixedly connected to the second mounting member 222. The second mounting member 222 can stably support the second circuit board 221, prevent the second circuit board 221 from being bent, and ensure the long-term use of the circuits and electrical components on the second circuit board 221.

[0083] In an optional embodiment, as Figure 2 shown, the valve stem 220 sequentially passes through the rotating assembly 22 and the fixing assembly 21. A C-shaped spring clip 60 is provided at the upper end of the rotating assembly 22, and this C-shaped spring clip 60 is engaged with the valve stem 220. Another C-shaped spring clip 60 is provided at the lower end of the fixing assembly 21, and this C-shaped spring clip 60 is engaged with the valve stem 220. By providing the two C-shaped spring clips 60, the positions of the rotating assembly 22 and the fixing assembly 21 relative to the valve stem 220 in the up-and-down direction are defined, and the fixing assembly 21 and the rotating assembly 22 can form a pre-assembled component.

[0084] In an optional embodiment, as Figure 2 shown, a first insertion through hole is formed on the rotating assembly 22, and the valve stem 220 is inserted into the first insertion through hole. The first insertion through hole is non-circular. By providing the first insertion through hole and the two C-shaped spring clips 60, the fixation between the valve stem 220 and the rotating assembly 22 can be achieved, thereby realizing the follow-up movement of the rotating assembly 22 and the knob 10. In addition, a second insertion through hole is formed on the fixing assembly 21, and the valve stem 220 is inserted into the second insertion through hole and can rotate relative to the second insertion through hole. By providing the second insertion through hole, the interference of the fixing assembly 21 on the rotation of the valve stem 220 can be avoided.

[0085] In an optional embodiment, as Figure 2 shown, the gear position detection mechanism 20 further includes a reset member 24. The reset member 24 is arranged between the pre-assembled component and the valve body 210. The setting of the reset member 24 can achieve the floating of the knob assembly 100 relative to the valve body 210 in the up-and-down direction. Exemplarily, the reset member 24 can be a spring, a silicone member, a rubber member, etc.

[0086] In an optional embodiment, as Figure 2As shown, the gear position detection mechanism 20 further includes a guide member 23. The guide member 23 is fixed to the valve body main body 210. A guide through hole 213 extending in the up and down direction is formed in the fixing component 21. The guide member 23 is inserted into the guide through hole 213 and can slide along the guide through hole 213. Through the cooperation of the guide member 23 and the guide through hole 213, the pre-assembled component can float well in the up and down direction.

[0087] In an alternative embodiment, as Figure 2 shown, the guide member 23 is provided with at least two. By providing at least two guide members 23, the fixing component 21 can be prevented from rotating.

[0088] In an alternative embodiment, as Figure 1 shown, the knob assembly 100 further includes a limiting member 50. The limiting member 50 is fixed to the valve body main body 210. The limiting member 50 can limit the upper limit position of the fixing component 21.

[0089] Embodiment Two

[0090] [[ID=1,6]]The present disclosure provides a knob assembly 100. The structure of the knob assembly 100 is basically the same as that of the knob assembly in Embodiment One. The main difference between the two is that as Figure 7 and Figure 8 shown, two second elastic telescopic PIN pins 21125 are provided. A plurality of electrodes 2212211 are provided as two electrode groups 221221. Two adjacent electrodes 2212211 of each electrode group 221221 are arranged at intervals along the rotation direction of the knob 10. Each second elastic telescopic PIN pin 21125 can slide along the corresponding electrode group 221221. The set distance is relatively far to avoid short circuit of the overall circuit caused by the two second elastic telescopic PIN pins 21125 being set too close.

[0091] In an alternative embodiment, as Figure 7 and Figure 8 shown, the knob 10 has a center line L C , and the two electrode groups 221221 are arranged on both sides of the center line L C and coaxially arranged. The first conductive portion 22121 and the second conductive portion 22122 are arranged radially and at intervals along the knob 10. A plurality of electrodes 2212211 are arranged circumferentially along the knob 10. Compared with the knob assembly 100 in Embodiment One, the knob assembly 100 in the present disclosure can set more electrodes 2212211 in a limited space, so as to realize the setting of more gear positions of the valve body 200.

[0092] Embodiment Three

[0093] An embodiment of the present disclosure provides a knob assembly 100. The structure of the knob assembly 100 is basically the same as that of the knob assembly in the first embodiment. The main difference between the two is that as Figure 9 and Figure 10 shown, the knob 10 has a center line L C , and two sets of electrode groups 221221 are arranged on the same side of the center line L C and coaxially. The two sets of electrode groups 221221 are arranged radially along the knob 10 and are spaced apart. The electrodes 2212211 of the two sets of electrode groups 221221 are alternately arranged in sequence along the rotation direction of the knob 10. While effectively reducing the size of the second circuit board body 2211 in the radial direction, more electrodes 2212211 can be arranged in a limited space at the same time, so as to realize more gear settings of the valve body 200.

[0094] Embodiment 4

[0095] An embodiment of the present disclosure provides a knob assembly 100. The structure of the knob assembly 100 is basically the same as that of the knob assembly in the first embodiment. The main difference between the two is that as Figure 11 shown, the display mechanism 30 includes a third circuit board 31 and a plurality of LED lights 32 electrically connected thereto. The plurality of LED lights 32 are arranged at intervals along the rotation direction of the knob 10. Each LED light 32 is electrically connected to the corresponding electrode 2212211. Each LED light 32 corresponds to the gear information one by one, so that it can be realized that the LED lights 32 lit by the display mechanism 30 are different under different gears of the valve body 200.

[0096] As Figure 12 and Figure 13 shown, a plurality of light shielding baffles 14 are arranged in the accommodation cavity 13. Two adjacent light shielding baffles 14 form an independent inner cavity 131. Each LED light 32 is arranged in the corresponding independent inner cavity 131 to prevent mutual interference between the LED lights 32 and ensure a good display effect of the display mechanism 30.

[0097] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the embodiments of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A knob assembly for cooperating with a valve body (210) of a valve body (200), characterized in that: The knob assembly comprises: A knob (10) capable of rotating relative to the valve body (210); A gear position detection mechanism (20), the gear position detection mechanism (20) comprising a first circuit board (211) and a second circuit board (221) arranged in a preset direction, the first circuit board (211) being fixedly connected to the knob (10), one of the first circuit board (211) and the second circuit board (221) comprising a conductive portion (2212), the other comprising an elastically retractable PIN needle (2112), the free end of the elastically retractable PIN needle (2112) being in contact with the conductive portion (2212) and being capable of sliding along the circumference of the conductive portion (2212) for obtaining gear position information of the valve body (200); and A display mechanism (30) is communicatively connected to the first circuit board (211) and / or the second circuit board (221), and the display mechanism (30) is used to display image information corresponding to the gear information.

2. The knob assembly according to claim 1, wherein: The elastic retractable PIN needle (2112) includes a needle tube (21121), an elastic member (21122) and a needle head (21123); the needle tube (21121) includes a cavity (211211) with an opening; the needle head (21123) is inserted from the opening into the cavity (211211); the elastic member (21122) is arranged in the cavity (211211) and is located between the needle tube (21121) and the bottom wall of the cavity (211211).

3. The knob assembly according to claim 2, wherein: The opening extends inward to form a first limiting portion (211212), the needle (21123) includes a contact portion (211231) and a second limiting portion (211232) connected to each other, the second limiting portion (211232) is located in the cavity (211211), and the first limiting portion (211212) and the second limiting portion (211232) cooperate to limit the extreme position of the needle (21123); and / or The free end of the needle (21123) is an outwardly convex spherical surface.

4. The knob assembly according to any one of claims 1 to 3, characterized in that: The knob assembly further includes a power supply (40), the elastic telescopic PIN needle (2112) includes a first elastic telescopic PIN needle (21124) and a second elastic telescopic PIN needle (21125), the first elastic telescopic PIN needle (21124) is electrically connected to the positive pole of the power supply (40), the second elastic telescopic PIN needle (21125) is electrically connected to the negative pole of the power supply (40), the conductive part (2212) includes a first conductive part (22121) and a second conductive part (22122), the first One of the conductive part (22121) and the second conductive part (22122) includes a plurality of electrodes (2212211), each of the electrodes (2212211) corresponds one-to-one to one of the gear position information, and the other of the two is an integral structure extending along the rotation direction of the knob (10); the first elastic and retractable PIN needle (21124) is always in contact with the integral structure, and the second elastic and retractable PIN needle (21125) can selectively be in contact with any of the electrodes (2212211).

5. The knob assembly according to claim 4, wherein: The first elastic telescopic PIN needle (21124) is set as one, the second elastic telescopic PIN needle (21125) is set as at least two, and the at least two second elastic telescopic PIN needles (21125) are arranged in parallel; when the knob (10) is rotated, only one second elastic telescopic PIN needle (21125) is always in contact with the corresponding electrode (2212211).

6. The knob assembly according to claim 5, wherein: The second elastic and retractable PIN needles (21125) are provided in two pieces, the plurality of electrodes (2212211) are provided in two electrode groups (221221), two adjacent electrodes (2212211) of each electrode group (221221) are spaced apart along the rotation direction of the knob (10), and each second elastic and retractable PIN needle (21125) can slide along the corresponding electrode group (221221); or The number of the second elastic and retractable PIN needles (21125) is two, and the plurality of electrodes (2212211) are arranged at intervals along the rotation direction of the knob (10). When one of the second elastic and retractable PIN needles (21125) abuts against the electrode (2212211), the other second elastic and retractable PIN needle (21125) is located between two adjacent electrodes (2212211).

7. The knob assembly according to claim 6, wherein: The knob (10) has a center line L C The two electrode groups (221221) are arranged on the center line L C The first conductive portion (22121) and the second conductive portion (22122) are arranged on both sides of the knob (10) and are coaxially arranged, and the first conductive portion (22121) and the second conductive portion (22122) are arranged radially along the knob (10) and are spaced apart; or The knob (10) has a center line L C The two electrode groups (221221) are arranged on the center line L C The two electrode groups (221221) are arranged on the same side and coaxially, and the two electrode groups (221221) are arranged radially along the knob (10) and spaced apart, and the electrodes (2212211) of the two electrode groups (221221) are arranged alternately in sequence along the rotation direction of the knob (10).

8. The knob assembly according to any one of claims 1 to 3, characterized in that: The knob (10) comprises a light-transmitting end plate (11), and the knob (10) is provided with a receiving cavity (13), and the display mechanism (30) is provided in the receiving cavity (13).

9. The knob assembly according to claim 8, wherein: The display mechanism (30) comprises a third circuit board (31) and an LED lamp (32) electrically connected thereto, wherein the third circuit board (31) is communicatively connected to the first circuit board (211) and / or the second circuit board (221); or The display mechanism (30) comprises a third circuit board (31) and a plurality of LED lights (32) electrically connected thereto, and each of the LED lights (32) corresponds one-to-one to the gear position information.

10. A stove, comprising a valve body (200), wherein the valve body (200) comprises a valve body (210) and a valve stem (220) arranged thereon, characterized in that: The stove further comprises a knob assembly according to any one of claims 1 to 9, and the valve stem (220) is fixedly connected to the knob (10).

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