Knob for a hob and hob

Abstract

The application discloses a knob for a cooking range and the cooking range, the fixing unit of the knob is used for being connected with a panel of the cooking range, and the rotating unit is connected with the fixing unit in a rotatable mode relative to the fixing unit; the rotating unit comprises a shell, a top rod part and an inner shell part, the shell is made of conductive material, the top rod part and the inner shell part are arranged in the shell and connected with the shell, the top rod part is located at a central region of the shell, and the inner shell part is located at a radial end region of the shell; the top rod part is provided with conductive material for forming a conductive path with the shell and the panel, and the inner shell part is provided with a conductive part, one end of the conductive part is in contact with the shell, and the other end of the conductive part extends to a surface of the inner shell part facing the panel, so as to be in contact with the panel. By adopting the scheme, the rotating operation of a user can be collected, the knob is installed on the panel of the cooking range through the fixing unit, and two conductive paths are formed, so that a wire does not need to be arranged through a hole, and therefore the convenience of using the knob can be improved.

Description

Technical Field

[0001] This invention relates to a knob for a stove and a stove. Background Technology

[0002] With technological advancements, touchscreens are increasingly being used in kitchen appliances, making these products more intelligent and convenient to use. Consumers are also becoming accustomed to the convenience brought by intelligent technology. Many kitchen appliances combine touchscreens and knobs, but communication (interaction) between the knobs and touchscreens often requires wires.

[0003] This situation causes some problems. For example, the knob cannot be fully installed on the touchscreen (the wires affect screen adhesion), or a perforated touchscreen must be used to avoid the wires. In some space-constrained designs, it is impossible to simultaneously place the touchscreen and the knob. In addition, using a perforated touchscreen is also very expensive. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a knob and a stove for a stove.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A knob for a cooktop, the knob comprising a rotating unit and a fixing unit, the fixing unit being connected to the cooktop panel, and the rotating unit being connected to the fixing unit in a rotatable manner relative to the fixing unit;

[0007] The rotating unit includes an outer shell, a push rod portion, and an inner shell portion. The outer shell is made of a conductive material. The push rod portion and the inner shell portion are both disposed inside the outer shell and connected to the outer shell. The push rod portion is located in the central region of the outer shell, and the inner shell portion is located in the radial end region of the outer shell.

[0008] The top rod portion has a conductive material for forming a conductive path with the outer shell and the panel. The inner shell portion has a conductive part, one end of which contacts the outer shell and the other end extends to the surface of the inner shell portion facing the panel for contacting the panel.

[0009] In the present solution, the outer shell and the top rod part can serve as part of a conductive path, the conductive part of the inner shell part and the outer shell can serve as part of another conductive path, so that when the knob is mounted on the stove panel, via the user's operation, a conductive path can be formed at the top rod part and the conductive part, and the signals of the panel of the stove at the central area of the knob and the radial end area are collected respectively, and the angle of rotation of the knob can be obtained according to the signals of the two places. And the knob is mounted on the stove panel through the fixing unit, and through the formation of the two conductive paths, the wires do not need to be arranged through the hole, so that the convenience of using the knob can be improved.

[0010] Preferably, the center point of the top rod part and the panel contact part coincides with the rotation axis of the rotation unit.

[0011] In the present solution, when the user rotates the knob, the part of the top rod part in contact with the panel does not change, and the conductive part of the inner shell part rotates with the user's operation, so that the calculation of the angle is facilitated.

[0012] Preferably, the top rod part includes a top rod and a first elastic member, the inner surface of the outer shell is provided with a receiving groove, the top rod extends into the receiving groove, and the first elastic member abuts between the receiving groove and the top rod and applies a force along the direction of the rotation axis of the rotation unit.

[0013] Preferably, the top rod and the side wall of the receiving groove are connected in a clamping manner.

[0014] Preferably, the part of the top rod extending into the receiving groove is provided with a stepped structure, the first elastic member is a spring, one end of the first elastic member abuts against the wall surface of the receiving groove, and the other end is sleeved on the stepped structure.

[0015] Preferably, the surface of the top rod towards the panel is arc-shaped.

[0016] Preferably, part of the rotation unit is movable relative to the fixing unit in the direction of the rotation axis of the rotation unit; the surface of the inner shell part towards the plane in which the surface of the panel, the surface of the fixing unit and the surface of the panel are located has a spacing in the direction of the rotation axis of the rotation unit.

[0017] In the present solution, when the user operates the knob, the rotation unit can be pressed down first and then rotated.

[0018] Preferably, the inner shell part is arranged around the top rod part, and the inner shell part and the top rod part are spaced apart.

[0019] Preferably, the conductive part comprises a conductive sheet and a second elastic member, the conductive sheet is laid on the surface of the inner shell part facing the panel for contacting the panel; the second elastic member extends in the inner shell part along a direction parallel to the rotation axis of the rotation unit; one end of the second elastic member is in contact with the outer shell and the other end is in contact with the conductive sheet.

[0020] Preferably, the inner shell part comprises an inner shell and a base, the inner shell is fixedly connected with the outer shell, the base is connected with the inner shell in a clamping manner; the inner shell and the base have a channel for accommodating the second elastic member; the conductive sheet is laid on the surface of the base facing the panel.

[0021] Preferably, the fixing unit comprises a support and a fastener, the support is fixedly connected with the panel through the fastener;

[0022] Part of the support extends into the outer shell, the support and the outer shell have a limiting structure for limiting the rotation of the outer shell relative to the support; the limiting structure comprises a limiting slot and a limiting buckle, one of the limiting slot and the limiting buckle is arranged on the support and the other is arranged on the outer shell;

[0023] The outer shell can be moved relative to the support in the direction of the rotation axis of the rotation unit, so that the limiting buckle can be disengaged from the limiting slot.

[0024] In this scheme, the rotation of the outer shell relative to the support is limited by the limiting structure, thereby limiting the rotation of the rotation unit relative to the fixing unit. When the outer shell drives the rotation unit to press down, the rotation unit can rotate relative to the fixing unit, avoiding the misoperation of the knob rotation.

[0025] Preferably, the outer side wall of the support is provided with the limiting slot, the limiting slot extends along a direction parallel to the rotation axis of the rotation unit and penetrates the end of the support facing the panel; the limiting buckle is arranged on the edge of the side wall of the outer shell and extends towards the inside of the outer shell.

[0026] Preferably, the part of the support provided with the limiting slot is provided with a protrusion at the penetrating end of the limiting slot, the protrusion is located on the surface of the part of the support provided with the limiting slot facing the panel.

[0027] In this scheme, the reset rebound under the condition of small angle rotation of the outer shell is prevented, and the user can actively distinguish the difference in hand feeling of the outer shell.

[0028] Preferably, the inner shell part is located inside the fixing unit, and a spacing space is formed between the inner shell part and the fixing unit.

[0029] The interval space is provided with a gear structure, which abuts between the inner shell part and the fixed unit along the radial direction of the rotating unit.

[0030] In this scheme, by providing the gear structure, the trigger points of the inner shell part can be prevented from overlapping when rotating twice, thereby avoiding inaccurate judgment.

[0031] Preferably, the gear structure comprises an elastic abutting part and a gear slot, the elastic abutting part is arranged along the radial direction of the rotating unit, and the gear slot is arranged along the circumferential direction of the rotating unit; one of the elastic abutting part and the gear slot is arranged on the inner shell part, and the other is arranged on the fixed unit.

[0032] Preferably, the elastic abutting part comprises a third elastic piece and a steel ball, the surface of the inner shell part facing the interval space is provided with a mounting groove, the mounting groove is arranged along the radial direction of the rotating unit, and the surface facing the fixed unit has an opening;

[0033] The gear slot is arranged on the surface of the fixed unit facing the interval space, and the gear slot is a concave-convex structure; the third elastic piece is mounted in the mounting groove, and the steel ball abuts between the gear slot and the third elastic piece.

[0034] Preferably, two elastic abutting parts are arranged in the interval space, and the two elastic abutting parts are arranged opposite to each other along the radial direction of the rotating unit.

[0035] A stove comprises the knob for a stove as described above, the stove comprises a touch screen, and the knob is mounted on the touch screen.

[0036] In this scheme, the stove can collect the rotating operation of the user by adopting the knob, and the knob is mounted on the panel of the stove through the fixed unit, and the two conductive paths are formed without arranging wires through perforation, thereby improving the convenience of using the knob.

[0037] The positive progress effect of the present application is that the shell and the top rod part can be part of a conductive path, and the conductive part of the inner shell part and the shell can be part of another conductive path, so that when the knob is mounted on the panel of the stove, a conductive path can be formed at the top rod part and the conductive part through the operation of the user, and the panel of the stove can collect signals at the central area and the radial end area of the knob respectively, and the angle of the knob rotation can be obtained according to the signals at the two places. Moreover, the knob is mounted on the panel of the stove through the fixed unit, and the two conductive paths are formed without arranging wires through perforation, thereby improving the convenience of using the knob. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0039] Figure 2 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0040] Figure 3 A schematic view of the knob provided by the embodiment of the present application when installed on a stove; Figure 2 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0041] Figure 4 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0042] Figure 5 A schematic view of the knob provided by the embodiment of the present application when installed on a stove; Figure 4 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0043] Figure 6 A schematic view of the knob provided by the embodiment of the present application when installed on a stove; Figure 4 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0044] Figure 7 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0045] Figure 8 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0046] Figure 9 A schematic view of the knob provided by the embodiment of the present application when installed on a stove; Figure 8 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0047] Figure 10 A schematic view of the knob provided by the embodiment of the present application when installed on a stove; Figure 8 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0048] Figure 11 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0049] Figure 12 A schematic view of the knob provided by the embodiment of the present application when installed on a stove;

[0050] Figure 13 A schematic view of the knob provided by the embodiment of the present application when installed on a stove.

[0051] Reference Signs List:

[0052] Knob 1, Rotating unit 10, Outer shell 100, Receiving groove 110, First slot 111, Radial wall 120, Mating groove 130, Limiting buckle 140, Top rod part 200, Top rod 210, First buckle 211, First elastic element 220, Inner shell part 300, Channel 301, Recess 302, Conductive part 310, Conductive sheet 311, Second elastic element 312, Inner shell 320, Mating block 321, Second slot 322, Mounting groove 323, Base 330, Second buckle 331, Fixing unit 20, Bracket 400, Limiting groove 410, Protrusion 411, Buckling surface 412, Boss 420, Fastener 500, Waterproof ring 510, Elastic abutment part 610, Third elastic element 611, Steel ball 612, Gear groove 620, Interval space 700, Touch screen 2, Panel 3, Rotation axis R. Detailed Implementation

[0053] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0054] This embodiment provides a knob 1 for a stove, such as... Figure 1 As shown, the knob 1 can be installed on the touchscreen 2 of the cooktop, such as on the glass panel 3. The knob 1 has a metal touch to simulate the interaction between the user's finger and the touchscreen 2. In practice, the knob 1 can be connected to the panel 3 by a fastener 500 similar to a screw, or it can be connected to the panel 3 by adhesive fastening.

[0055] like Figure 2 and Figure 3 As shown, the knob 1 includes a rotating unit 10 and a fixing unit 20. The fixing unit 20 is used to connect to the panel 3 of the stove. The rotating unit 10 is connected to the fixing unit 20 in a rotatable manner relative to the fixing unit 20. When the knob 1 is installed on the panel 3, the fixing unit 20 can be fixed relative to the panel 3, and the rotating unit 10 can be driven by the user to rotate relative to the fixing unit 20, that is, relative to the panel 3.

[0056] The rotating unit 10 includes a housing 100, a push rod portion 200, and an inner housing portion 300. Both the push rod portion 200 and the inner housing portion 300 are located inside and connected to the housing 100. The push rod portion 200 is located in the central region of the housing 100, and the inner housing portion 300 is located in the radial end region of the housing 100. Figure 1 As shown, the knob 1 has a flattened cylindrical structure. The rotating unit 10 can rotate relative to the rotation axis R, which is the central axis of the rotating unit 10. Figure 2 and Figure 3As shown, the outer shell 100 is in a substantially cylindrical structure, the top rod part 200 and the inner shell part 300 are both arranged in the inner space of the outer shell 100, and when the outer shell 100 is rotated by the user, the top rod part 200 and the inner shell part 300 can rotate with the outer shell 100. As shown in Figure 5 As shown, the fixing unit 20 is also located inside the outer shell 100.

[0057] The outer shell 100 is made of conductive material, the top rod part 200 has conductive material for forming a conductive path with the outer shell 100 and the panel 3, and the inner shell part 300 is provided with a conductive part 310, one end of which is in contact with the outer shell 100, and the other end extends to the surface of the inner shell part 300 facing the panel 3 for contact with the panel 3. Among them, the top rod part 200 can be made of conductive material, or can contain conductive material, so that the top rod part 200 can form a conductive path with the outer shell 100. The inner shell part 300 is made of non-conductive material except the conductive part 310, so that the inner shell part 300 forms a conductive path with the outer shell 100 except at the conductive part 310.

[0058] The outer shell 100 and the top rod part 200 can be part of a conductive path, and the conductive part 310 of the inner shell part 300 and the outer shell 100 can be part of another conductive path, so that when the knob 1 is installed on the panel 3 of the stove, a conductive path can be formed at the top rod part 200 and the conductive part 310 through the user's operation, and the panel 3 of the stove can collect signals at the central area and the radial end area of the knob 1 respectively, and the angle of rotation of the knob 1 can be obtained according to the signals at the two places. And the knob 1 is installed on the panel 3 of the stove by the fixing unit 20, and through the formation of the two conductive paths, it is not necessary to arrange wires through holes, so as to improve the convenience of using the knob 1.

[0059] As shown in Figure 5 The center point of the part of the top rod part 200 in contact with the panel 3 coincides with the rotation axis R of the rotating unit 10. When the user rotates the knob 1, the part of the top rod part 200 in contact with the panel 3 does not change, and the conductive part 310 of the inner shell part 300 rotates with the user's operation, so as to facilitate the calculation of the angle.

[0060] As shown in Figure 5 The part of the rotating unit 10 relative to the fixing unit 20 is movable in the direction of the rotation axis R of the rotating unit 10; the plane in which the surface of the inner shell part 300 facing the panel 3 is located has a distance from the plane in which the surface of the fixing unit 20 connecting with the panel 3 is located in the direction of the rotation axis R of the rotating unit 10. When the user operates the knob 1, the rotating unit 10 can be pressed down first and then rotated.

[0061] Further, as shown in Figure 5As shown, the push rod portion 200 has an elastic compression capacity, ensuring that it remains in contact with the panel 3 at all times. After being pressed down, the conductive portion 310 of the inner shell portion 300 contacts the panel 3. Furthermore, the contact between the push rod portion 200 and the panel 3 also allows it to serve as a support for the rotating unit 10, preventing the inner shell portion 300 from contacting the panel 3 when not being pressed down. In other embodiments, other structures can be provided to support the rotating unit 10, allowing the push rod portion 200 and the inner shell portion 300 to contact the panel 3 again after the pressing operation.

[0062] In another embodiment, the rotating unit 10 is immovable relative to the fixed unit 20 in the direction of the rotation axis R. In this case, the conductive part 310 and the top rod part 200 are always in contact with the panel 3. When the outer shell 100 is subjected to a rotation operation, the rotating unit 10 can be rotated. During this process, the contact point between the top rod part 200 and the panel 3 does not change, while the conductive part 310 of the inner shell part 300 changes accordingly.

[0063] In the following embodiments, taking the example of the push rod portion 200 always being in contact with the panel 3 and the conductive portion 310 being in contact with the panel 3 after being pressed down, the specific implementation will be further described. However, the scope of protection of the present invention should not be limited to the following embodiments.

[0064] As a specific embodiment where the push rod portion 200 has an elastic compression amount, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the push rod portion 200 includes a push rod 210 and a first elastic member 220. The inner surface of the housing 100 is provided with a receiving groove 110. The push rod 210 extends into the receiving groove 110. The first elastic member 220 abuts against the receiving groove 110 and the push rod 210 and applies a force along the rotation axis R of the rotating unit 10.

[0065] like Figure 5 and Figure 6 As shown, the portion of the push rod 210 that extends into the receiving groove 110 has a stepped structure. The first elastic element 220 is a spring, with one end abutting against the wall of the receiving groove 110 and the other end sleeved on the stepped structure. This allows the push rod 210 to move along the axial direction of the spring, and the spring to apply pressure to the outer casing 100 and the push rod 210. Preferably, the surface of the push rod 210 facing the panel 3 is arc-shaped, and the rotation axis R of the rotating unit 10 passes through the center of this arc-shaped push rod 210.

[0066] like Figure 3 and Figure 6 As shown, the push rod 210 is connected to the side wall of the receiving groove 110 by a snap-fit ​​connection. Specifically, as...Figure 3 and Figure 6 As shown, the side wall of the receiving groove 110 is provided with a first slot 111, and the side wall of the push rod 210 is provided with a first buckle 211, which is engaged with the first slot 111. As an alternative embodiment, the first slot 111 can also be provided on the outer side wall of the push rod 210, and the first buckle 211 can be provided on the inner side wall of the receiving groove 110.

[0067] like Figure 2 and Figure 3 , Figure 5 and Figure 6 As shown, the inner surface of the end wall of the outer casing 100 is provided with a radial wall 120, forming a receiving groove 110; the extension length of the radial wall 120 is less than the thickness of the knob 1, thereby reserving space for the rotating unit 10 to press down. A first slot 111 is provided in the radial wall 120. The push rod 210 has a generally cylindrical structure, and the end face extending out of the receiving groove 110, i.e., the surface near the panel 3, is arc-shaped. The circumferential side wall of the push rod 210, near the end face facing the receiving groove 110, is provided with this stepped structure, and one end of the first elastic member 220 is sleeved in the stepped structure. The circumferential side wall of the push rod 210 is also provided with a protruding first buckle 211. After the first buckle 211 is engaged in the first slot 111, the other end of the first elastic member 220 abuts against the receiving groove 110. Preferably, in the radial direction of the knob 1, the push rod 210 and the receiving groove 110 are provided at opposite positions.

[0068] like Figure 2 and Figure 3 As shown, the inner shell portion 300 is arranged around the top rod portion 200, and the inner shell portion 300 and the top rod portion 200 are spaced apart.

[0069] like Figure 2 , Figure 3 and Figure 5 As shown, the conductive part 310 includes a conductive sheet 311 and a second elastic member 312. The conductive sheet 311 is laid on the surface of the inner shell part 300 facing the panel 3 for contact with the panel 3. The second elastic member 312 extends in the inner shell part 300 along a direction parallel to the rotation axis R of the rotating unit 10. One end of the second elastic member 312 contacts the outer shell 100, and the other end contacts the conductive sheet 311.

[0070] like Figure 5 As shown, the inner shell portion 300 has a channel 301 that extends through the inner shell portion 300, allowing the two ends of the second elastic member 312 to contact the outer shell 100 and the conductive sheet 311, respectively. Further, the channel 301 extends in a direction parallel to the rotation axis R. Figure 3As shown in FIG. 3, the inner housing portion 300 has a recess 302 on the surface thereof facing the panel 3, and the conductive sheet 311 is installed in the recess 302. Preferably, the second elastic member 312 is a spring, and the conductive sheet 311 is a metal sheet.

[0071] As a specific embodiment of the inner housing portion 300, as shown in FIG. 4, the inner housing portion 300 includes an inner housing 320 and a base 330, the inner housing 320 is fixedly connected with the outer housing 100, and the base 330 is connected with the inner housing 320 in a clamping manner; the inner housing 320 and the base 330 have a passage 301 for accommodating the second elastic member 312; and the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3. Figure 2 Figure 3 Figure 5 Figure 6 As shown in FIG. 4, the inner housing portion 300 includes an inner housing 320 and a base 330, the inner housing 320 is fixedly connected with the outer housing 100, and the base 330 is connected with the inner housing 320 in a clamping manner; the inner housing 320 and the base 330 have a passage 301 for accommodating the second elastic member 312; and the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3.

[0072] As shown in FIG. 4, the inner housing portion 300 includes an inner housing 320 and a base 330, the inner housing 320 is fixedly connected with the outer housing 100, and the base 330 is connected with the inner housing 320 in a clamping manner; the inner housing 320 and the base 330 have a passage 301 for accommodating the second elastic member 312; and the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3. Figure 2 Figure 3 Figure 5 As shown in FIG. 4, the inner housing portion 300 includes an inner housing 320 and a base 330, the inner housing 320 is fixedly connected with the outer housing 100, and the base 330 is connected with the inner housing 320 in a clamping manner; the inner housing 320 and the base 330 have a passage 301 for accommodating the second elastic member 312; and the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3. Figure 2 Figure 3 Figure 5 As shown in FIG. 4, the inner housing portion 300 includes an inner housing 320 and a base 330, the inner housing 320 is fixedly connected with the outer housing 100, and the base 330 is connected with the inner housing 320 in a clamping manner; the inner housing 320 and the base 330 have a passage 301 for accommodating the second elastic member 312; and the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3. Figure 2 As shown in FIG. 4, the inner housing portion 300 includes an inner housing 320 and a base 330, the inner housing 320 is fixedly connected with the outer housing 100, and the base 330 is connected with the inner housing 320 in a clamping manner; the inner housing 320 and the base 330 have a passage 301 for accommodating the second elastic member 312; and the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3.

[0073] Figure 2 Figure 3 Figure 6 As shown in FIG. 4, the inner housing portion 300 includes an inner housing 320 and a base 330, the inner housing 320 is fixedly connected with the outer housing 100, and the base 330 is connected with the inner housing 320 in a clamping manner; the inner housing 320 and the base 330 have a passage 301 for accommodating the second elastic member 312; and the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3. Figure 5 Figure 6 As shown in FIG. 4, the inner housing portion 300 includes an inner housing 320 and a base 330, the inner housing 320 is fixedly connected with the outer housing 100, and the base 330 is connected with the inner housing 320 in a clamping manner; the inner housing 320 and the base 330 have a passage 301 for accommodating the second elastic member 312; and the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3.

[0074] As shown in FIG. 4, the inner housing portion 300 includes an inner housing 320 and a base 330, the inner housing 320 is fixedly connected with the outer housing 100, and the base 330 is connected with the inner housing 320 in a clamping manner; the inner housing 320 and the base 330 have a passage 301 for accommodating the second elastic member 312; and the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3. Figure 3 ​​​​​​​​​​​、 Figure 4 and Figure 6 As shown in

[0075] As shown in Figure 3 、 Figure 4 and Figure 6 Part of the bracket 400 extends into the shell 100, and the bracket 400 and the shell 100 have a limiting structure for limiting the rotation of the shell 100 relative to the bracket 400; the limiting structure includes a limiting slot 410 and a limiting buckle 140, one of which is arranged on the bracket 400 and the other is arranged on the shell 100; the shell 100 can be movable relative to the bracket 400 in the direction of the rotation axis R of the rotation unit 10, so that the limiting buckle 140 can be separated from the limiting slot 410. Through the limiting structure, the rotation of the shell 100 relative to the bracket 400 can be limited, and the rotation of the rotation unit 10 relative to the fixed unit 20 is further limited. In order to make the rotation unit 10 rotate relative to the fixed unit 20 after the shell 100 drives the rotation unit 10 to press down, the misoperation of the rotation of the knob 1 is avoided.

[0076] As shown in Figure 3 、 Figure 4 and Figure 6 The outer side wall of the bracket 400 is provided with a limiting slot 410, which extends along a direction parallel to the rotation axis R of the rotation unit 10 and penetrates the bracket 400 towards the end of the panel 3; the limiting buckle 140 is arranged on the edge of the side wall of the shell 100 and extends towards the inside of the shell 100. Further, as shown in Figure 6 The limiting buckle 140 extends into the limiting slot 410, and the side wall of the limiting slot 410 in the circumferential direction can limit the limiting buckle 140. When the shell 100 is subjected to a downward pressing operation, the limiting buckle 140 moves downward and leaves the limiting slot 410, so that the shell 100 can rotate relative to the bracket 400. Further, as shown in Figure 7 The top of the limiting buckle 140 abuts against the buckle position surface 412 of the bracket 400 and rotates on the buckle position surface 412. And, as shown in Figure 5 The inner side wall of the bracket 400 has a radially extending boss 420, which can abut against the base 330.

[0077] As shown in Figure 7As shown, the bracket 400 is provided with a part of the limiting groove 410, and the protrusion 411 is arranged at the through end of the limiting groove 410, and the protrusion 411 is located on the surface of the bracket 400 provided with the part of the limiting groove 410 and facing the panel 3. The reset rebound of the shell 100 under the condition of small-angle rotation is prevented, and the user can actively composite the shell 100 with a tactile difference. Further, as shown in Figure 7 As shown, the protrusions 411 are arranged at the lower ends of the two side walls of the limiting groove 410, and the limiting buckle 140 abuts against the buckle position surface 412 after passing the protrusions 411.

[0078] On the basis of the above embodiments, the knob 1 can further include a gear structure. The metal conductive sheet 311 is manufactured to be small in size, and is affected by assembly, deformation and the like of the structural member. Therefore, the trigger point of the conductive sheet 311 on the touch screen 2 is not a fixed point, that is, the first trigger point of the conductive sheet 311 is a first trigger point, and the second trigger point is a second trigger point. In this way, there is a case that the first trigger point and the second trigger point can overlap when the rotation angle of the conductive sheet 311 is small, and the knob 1 is easily judged as not rotating. By setting the gear structure, this case can be avoided.

[0079] As shown in Figure 8 , Figure 9 and Figure 10 , the inner shell part 300 is located inside the fixed unit 20, and a spacing space 700 is formed between the inner shell part 300 and the fixed unit 20; the gear structure is arranged in the spacing space 700 and abuts between the inner shell part 300 and the fixed unit 20 along the radial direction of the rotating unit 10. By setting the gear structure, the trigger points of the inner shell part 300 in the two rotations can be avoided from overlapping, and inaccurate judgment can be avoided.

[0080] As shown in Figure 8 , Figure 9 and Figure 10 , the gear structure includes the elastic abutting part 610 and the gear groove 620. The elastic abutting part 610 is arranged along the radial direction of the rotating unit 10, and the gear groove 620 is arranged along the circumferential direction of the rotating unit 10. One of the elastic abutting part 610 and the gear groove 620 is arranged on the inner shell part 300, and the other is arranged on the fixed unit 20.

[0081] As shown in Figure 9 and Figure 10As shown in the drawings, the elastic abutting part 610 comprises a third elastic member 611 and a steel ball 612, the inner shell part 300 is provided with a mounting groove 323 on the surface facing the spacing space 700, the mounting groove 323 is arranged along the radial direction of the rotating unit 10 and has an opening on the surface facing the fixing unit 20; the gear groove 620 is arranged on the surface of the fixing unit 20 facing the spacing space 700, and the gear groove 620 is a concave-convex structure; the third elastic member 611 is mounted in the mounting groove 323, and the steel ball 612 abuts between the gear groove 620 and the third elastic member 611.

[0082] As shown in the drawings, Figure 9 and Figure 10 when the inner shell part 300 is the embodiment of the inner shell 320 and the base 330, the spacing space 700 is formed between the bracket 400, the inner shell 320 and the base 330, the gear groove 620 is arranged on the inner surface of the bracket 400 and is uniformly arranged in the circumferential direction in a concave-convex structure. The mounting groove 323 is arranged on the side wall of the inner shell 320 and extends in the radial direction, so that the steel ball 612 and the third elastic member 611 can be arranged in the radial direction. Preferably, the third elastic member 611 is a spring which can adapt to the change of the radial position of the steel ball 612 and abut the surface of the steel ball 612 and the gear groove 620.

[0083] As shown in the drawings, Figure 9 and Figure 10 two elastic abutting parts 610 are arranged in the spacing space 700 and are arranged opposite to each other along the radial direction of the rotating unit 10.

[0084] The embodiment of the present application also provides a stove, which comprises the knob 1 for the stove as described above, and the stove comprises a touch screen 2, as shown in the drawings, Figure 1 the knob 1 is mounted on the touch screen 2. The stove can collect the rotating operation of the user by using the knob 1, and the knob 1 is mounted on the touch screen 2 by the fixing unit 20, and the two conductive paths are formed without arranging wires through holes, so that the convenience of using the knob 1 can be improved.

[0085] As shown in the drawings, Figure 11 a schematic view when the fastener 500 is a screw is shown, the knob 1 is fixed to the panel 3 by the screw, so that the knob 1 is mounted on the touch screen 2. Specifically, the screw passes through the panel 3 into the bracket 400 of the knob 1 and is locked with the bracket 400. As shown in the drawings, Figure 12 on the basis of the screw fastening, a waterproof ring 510 can be further arranged between the bottom of the knob 1 and the panel 3, so as to avoid the pollutants such as water from entering the inside of the knob 1. Specifically, the structure for accommodating the waterproof ring 510 is arranged on the outer edge of the bracket 400. As shown in the drawings, Figure 13 a schematic view for connecting the knob 1 and the panel 3 by gluing is shown.

[0086] Although the specific embodiments of the present application have been described above, it is understood by those skilled in the art that the present application is only illustrative, and the scope of protection of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and the essence of the present application, and such changes and modifications fall within the scope of protection of the present application.

Claims

1. A knob for a cooktop, characterized in that, The knob comprises a rotating unit and a fixed unit, the fixed unit is used for connecting with a panel of a stove, and the rotating unit is connected with the fixed unit in a rotatable manner relative to the fixed unit; The rotating unit comprises an outer shell, a top rod part and an inner shell part, the outer shell is made of conductive material, the top rod part and the inner shell part are arranged in the outer shell and connected with the outer shell, the top rod part is located at a central region of the outer shell, and the inner shell part is located at a radial end region of the outer shell; The top rod part is provided with conductive material for forming a conductive path with the outer shell and the panel, and the inner shell part is provided with a conductive part, one end of the conductive part is in contact with the outer shell, and the other end extends to a surface of the inner shell part facing the panel for contacting the panel.

2. A knob for a cooktop as claimed in claim 1, characterized in that A center point of the top rod part in contact with the panel coincides with a rotating axis of the rotating unit.

3. A knob for a cooktop as claimed in claim 2, characterized in that The top rod part comprises a top rod and a first elastic member, an inner surface of the outer shell is provided with a receiving groove, the top rod extends into the receiving groove, and the first elastic member is abutted between the receiving groove and the top rod and applies a force in the direction of the rotating axis of the rotating unit.

4. A knob for a cooktop as claimed in claim 3, characterized in that The top rod and the side wall of the receiving groove are connected in a clamping manner; And / or, a portion of the top rod extending into the receiving groove is provided with a stepped structure, the first elastic member is a spring, one end of the first elastic member is abutted with a wall surface of the receiving groove, and the other end is sleeved on the stepped structure; And / or, the surface of the top rod facing the panel is arc-shaped.

5. Knob for a hob according to any one of claims 1-4, characterized in that, A portion of the rotating unit is movable relative to the fixed unit in the direction of the rotating axis of the rotating unit; A plane in which the surface of the inner shell part facing the panel is located has a spacing from a plane in which a surface of the fixed unit connecting with the panel is located in the direction of the rotating axis of the rotating unit.

6. A knob for a cooktop as claimed in claim 5, characterized in that The inner shell part is arranged around the top rod part, and the inner shell part and the top rod part are spaced apart.

7. The knob for a cooktop as claimed in claim 5, characterized in that The conductive part comprises a conductive sheet and a second elastic member, the conductive sheet is laid on the surface of the inner shell part facing the panel for contacting the panel; The second elastic member extends in the inner shell part in a direction parallel to the rotating axis of the rotating unit; One end of the second elastic member is in contact with the outer shell, and the other end is in contact with the conductive sheet.

8. A knob for a cooktop as claimed in claim 7, characterized in that The inner shell part comprises an inner shell and a base, the inner shell is fixedly connected with the outer shell, and the base is connected with the inner shell in a clamping manner; the inner shell and the base have a channel for accommodating the second elastic member; and the conductive sheet is laid on a surface of the base facing the panel.

9. The knob for a cooktop as claimed in claim 5, characterized in that The fixed unit comprises a support and a fastener, and the support is fixedly connected with the panel through the fastener. Part of the support extends into the shell, and a limiting structure is arranged between the support and the shell, which is used to limit the rotation of the shell relative to the support; the limiting structure comprises a limiting slot and a limiting buckle, one of which is arranged on the support and the other is arranged on the shell. The shell can be moved relative to the support in the direction of the rotation axis of the rotation unit, so that the limiting buckle can be separated from the limiting slot.

10. A knob for a cooktop as claimed in claim 9, characterized in that The outer side wall of the support is provided with the limiting slot, which extends along the direction parallel to the rotation axis of the rotation unit and penetrates the support towards the end of the panel; the limiting buckle is arranged at the edge of the side wall of the shell and extends towards the inside of the shell.

11. A knob for a cooktop as claimed in claim 10, characterized in that The part of the support provided with the limiting slot is provided with a protrusion at the penetrating end of the limiting slot, and the protrusion is located on the surface of the part of the support provided with the limiting slot towards the panel.

12. The knob for a cooktop as claimed in claim 1, characterized in that The inner shell part is located inside the fixing unit, and a spacing space is formed between the inner shell part and the fixing unit. The spacing space is provided with a gear structure, which abuts between the inner shell part and the fixing unit along the radial direction of the rotation unit.

13. A knob for a cooktop as claimed in claim 12, characterized in that The gear structure comprises an elastic abutting part and a gear slot, the elastic abutting part is arranged along the radial direction of the rotation unit, and the gear slot is arranged along the circumferential direction of the rotation unit; one of the elastic abutting part and the gear slot is arranged on the inner shell part, and the other is arranged on the fixing unit.

14. A knob for a cooktop as claimed in claim 13, characterized in that The elastic abutting part comprises a third elastic member and a steel ball, the surface of the inner shell part towards the spacing space is provided with a mounting slot, the mounting slot is arranged along the radial direction of the rotation unit, and has an opening on the surface towards the fixing unit; The gear slot is arranged on the surface of the fixing unit towards the spacing space, and the gear slot is a concave-convex structure; the third elastic member is mounted in the mounting slot, and the steel ball abuts between the gear slot and the third elastic member.

15. Knob for a hob according to any one of claims 13-14, characterized in that, Two elastic abutting parts are arranged in the spacing space, and the two elastic abutting parts are arranged opposite to each other along the radial direction of the rotation unit.

16. A hob, characterized in that The stove comprises the knob for stove according to any one of claims 1-15, the stove comprises a touch screen, and the knob is mounted on the touch screen.

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