Knob for kitchen range and kitchen range

Abstract

The invention discloses a rotary knob for a stove and the stove. A fixing unit of the rotary knob is used for being connected with a panel of the stove, and a rotating unit is connected with the fixing unit in a mode of being capable of rotating relative to the fixing unit; the rotating unit comprises an outer shell, an ejector rod part and an inner shell part, the outer shell is made of a conductive material, the ejector rod part and the inner shell part are both arranged in the outer shell and connected with the outer shell, the ejector rod part is located at the center area of the outer shell, and the inner shell part is located at the radial end area of the outer shell; the ejector rod part is provided with a conductive material for forming a conductive path with the outer shell and the panel, a conductive part is arranged in the inner shell part, one end of the conductive part is in contact with the outer shell, and the other end extends to the surface, facing the panel, of the inner shell part to be in contact with the panel. By adopting the scheme, the rotating operation of a user can be acquired, the knob is mounted on the cooker panel through the fixing unit, and through the formation of the two conductive paths, a wire does not need to be arranged through perforation, so that the use convenience of the knob can be improved.

Description

Technical Field

[0001] The invention relates to a knob for a cooker and the cooker. Background Art

[0002] With the development of technology, a large number of touch screens are used in kitchen appliances. Kitchen appliances are becoming more and more intelligent and convenient to use. Consumers are also accustomed to the convenience brought by intelligent technology. Many kitchen appliances use a combination of touch screens and knobs, and the communication (interaction) between knobs and touch screens often requires wire connection.

[0003] This situation has caused some problems, such as the knob cannot be completely installed on the touch screen (the wire affects the screen fit), or the perforated touch screen is used to avoid the wire, so in some places where the design space requirements are high, the touch screen and the knob cannot be arranged at the same time. In addition, the cost of using a perforated touch screen is also very high. Summary of the invention

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

[0005] The present invention solves the above technical problems through the following technical solutions:

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

[0007] The rotating unit comprises an outer shell, a push rod part and an inner shell part, the outer shell is made of a conductive material, the push rod part and the inner shell part are both arranged in the outer shell and connected to the outer shell, the push rod part is located at the central area of ​​the outer shell, and the inner shell part is located at the radial end area of ​​the outer shell;

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

[0009] In this solution, the outer shell and the top rod part can be used as part of the conductive path, and the conductive part of the inner shell part and the outer shell can be used as part of another conductive path, so that when the knob is installed on the stove panel, through the user's operation, a conductive path can be formed at the top rod part and the conductive part, and the stove panel can collect signals at the central area and the radial end area of ​​the knob respectively, and the angle of rotation of the knob can be obtained according to the signals at these two places. In addition, the knob is installed on the stove panel through the fixing unit, and through the formation of two conductive paths, there is no need to perforate and arrange the wires, so that the convenience of using the knob can be improved.

[0010] Preferably, a center point of a contact portion between the push rod portion and the panel coincides with a rotation axis of the rotation unit.

[0011] In this solution, when the user turns the knob, the portion of the top rod that contacts the panel does not change, while the conductive portion of the inner shell rotates with the user's operation, thereby facilitating the calculation of the angle.

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

[0013] Preferably, the push rod is connected to the side wall of the accommodating groove in a snap-fit ​​manner.

[0014] Preferably, the portion of the push rod extending into the receiving groove is provided with a step 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 step structure.

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

[0016] Preferably, part of the rotating unit is movable relative to the fixed unit in the direction of the rotation axis of the rotating unit; and there is a distance between the plane where the surface of the inner shell part facing the panel is located and the plane where the surface of the fixed unit connected to the panel is located, in the direction of the rotation axis of the rotating unit.

[0017] In this solution, when the user operates the knob, the user may first press down the rotating unit and then rotate it.

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

[0019] Preferably, the conductive part includes 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 within the inner shell part along a direction parallel to the rotation axis of the rotating unit; one end of the second elastic member contacts the outer shell, and the other end contacts the conductive sheet.

[0020] Preferably, the inner shell part includes an inner shell and a base, the inner shell is fixedly connected to the outer shell, and the base is connected to the inner shell in a snap-fit ​​manner; the inner shell and the base have a channel, and the channel is used to accommodate 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 bracket and a fastener, and the bracket is fixedly connected to the panel via the fastener;

[0022] Part of the bracket extends into the shell, and a limiting structure is provided between the bracket and the shell, and the limiting structure is used to limit the rotation of the shell relative to the bracket; the limiting structure includes a limiting groove and a limiting buckle, and one of the limiting groove and the limiting buckle is provided on the bracket, and the other is provided on the shell;

[0023] The housing can be movable relative to the bracket in the direction of the rotation axis of the rotating unit so that the limiting buckle can be separated from the limiting groove.

[0024] In this solution, the limiting structure can limit the rotation of the housing relative to the bracket, thereby limiting the rotation of the rotating unit relative to the fixed unit. After the housing drives the rotating unit to press down, the rotating unit can rotate relative to the fixed unit to avoid misoperation of the knob.

[0025] Preferably, the outer side wall of the bracket is provided with the limiting groove, which extends in a direction parallel to the rotation axis of the rotating unit and passes through the end of the bracket toward the panel; the limiting buckle is arranged on the edge of the side wall of the outer shell and extends toward the interior of the outer shell.

[0026] Preferably, the portion of the bracket provided with the limiting groove and a protrusion are provided at the through end of the limiting groove, and the protrusion is located on the surface of the portion of the bracket provided with the limiting groove facing the panel.

[0027] In this solution, the shell is prevented from resetting and rebounding when it is rotated at a small angle, so that the user can actively compound the shell to have a different feel.

[0028] Preferably, the inner shell portion is located inside the fixing unit, and a separation space is formed between the inner shell portion and the fixing unit;

[0029] A gear structure is arranged in the interval space, and the gear structure abuts between the inner shell part and the fixing unit along the radial direction of the rotating unit.

[0030] In this solution, by setting the gear structure, it is possible to avoid the trigger points of the inner shell part overlapping during two rotations, thereby avoiding inaccurate judgment.

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

[0032] Preferably, the elastic abutment portion includes a third elastic member and a steel ball, and a mounting groove is provided on a surface of the inner shell portion facing the spacing space, the mounting groove is arranged along the radial direction of the rotating unit, and has an opening on a surface facing the fixed unit;

[0033] The gear slot is arranged on the surface of the fixing unit facing the spacing space, and the gear slot is a concave-convex structure; the third elastic member is installed in the installation slot, and the steel ball is abutted between the gear slot and the third elastic member.

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

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

[0036] In this solution, the stove can collect the user's rotation operation by adopting the knob, and the knob is installed on the stove panel through a fixing unit. By forming two conductive paths, there is no need to perforate and arrange the wires, thereby improving the convenience of using the knob.

[0037] The positive and progressive effect of the present invention is that the outer shell and the top rod part can be used as part of the conductive path, and the conductive part of the inner shell part and the outer shell can be used as part of another conductive path, so that when the knob is installed on the stove panel, through the user's operation, a conductive path can be formed at the top rod part and the conductive part, and the stove panel can collect signals at the central area and the radial end area of ​​the knob respectively, and the angle of rotation of the knob can be obtained according to the signals at these two places. In addition, the knob is installed on the stove panel through a fixing unit, and through the formation of two conductive paths, there is no need to perforate and arrange the wires, so that the convenience of using the knob can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of a knob provided in an embodiment of the present invention when installed on a cooker;

[0039] Figure 2 A perspective exploded schematic diagram of a knob provided by an embodiment of the present invention;

[0040] Figure 3 for Figure 2 An exploded diagram of another perspective of the middle knob;

[0041] Figure 4 A schematic diagram of the bottom planar structure of a knob provided in an embodiment of the present invention;

[0042] Figure 5 for Figure 4 Sectional view at AA in the middle;

[0043] Figure 6 for Figure 4 Sectional view at the middle BB;

[0044] Figure 7 It is a partial enlarged schematic diagram of the stent;

[0045] Figure 8 An exploded schematic diagram of another knob provided by an embodiment of the present invention;

[0046] Fig. 9 for Figure 8 A cross-sectional view of the middle knob in the axial direction;

[0047] Fig.10 for Figure 8 a radial cross-sectional view of the middle knob;

[0048] Fig.11 A method of installing the knob provided in an embodiment of the present invention on a cooker;

[0049] Fig.12 Another installation method of the knob provided in the embodiment of the present invention when it is installed on a cooker;

[0050] Fig.13 This is another installation method when the knob provided in the embodiment of the present invention is installed on a cooker.

[0051] Description of reference numerals:

[0052] Knob 1, rotating unit 10, shell 100, accommodating groove 110, first clamping groove 111, radial wall 120, matching groove 130, limiting buckle 140, top rod part 200, top rod 210, first buckle 211, first elastic member 220, inner shell part 300, channel 301, recess 302, conductive part 310, conductive sheet 311, second elastic member 312, inner shell 320, matching block 321, second clamping groove 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 member 611, steel ball 612, gear slot 620, spacing space 700, touch screen 2, panel 3, rotation axis R. DETAILED DESCRIPTION

[0053] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0054] This embodiment provides a knob 1 for a cooker, such as Figure 1 As shown, the knob 1 can be installed on a touch screen 2 of a cooker, such as a glass panel 3, and the knob 1 has a metal touch to simulate the user's finger interacting with the touch screen 2. In a specific implementation, the knob 1 can be connected to the panel 3 by a fastener 500 such as a screw, or by an adhesive fastening method.

[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 be connected to the panel 3 of the cooker, and 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 mounted 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 top rod portion 200 and an inner housing portion 300. The top rod portion 200 and the inner housing portion 300 are both disposed in the housing 100 and connected to the housing 100. The top rod portion 200 is located at the central region of the housing 100, and the inner housing portion 300 is located at the radial end region of the housing 100. Figure 1 As shown, the knob 1 is a flat cylindrical structure. The rotating unit 10 can rotate relatively around the rotating axis R, which is the central axis of the rotating unit 10. Figure 2 and Figure 3As shown, the outer shell 100 is a generally cylindrical structure, and the top rod part 200 and the inner shell part 300 are both arranged in the inner space of the outer shell 100. 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. Figure 5 As shown, the fixing unit 20 is also located inside the housing 100 .

[0057] The outer shell 100 is made of a conductive material, the top rod part 200 has a 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 the conductive part 310 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, so as to contact the panel 3. Among them, the top rod part 200 can be made of a conductive material, and can also include a conductive material, so that the top rod part 200 can form a conductive path with the outer shell 100. The other parts of the inner shell part 300 except the conductive part 310 are made of non-conductive materials, so that the inner shell part 300 forms a conductive path with the outer shell 100 at the conductive part 310.

[0058] The outer shell 100 and the top rod part 200 can be used as part of a conductive path, and the conductive part 310 of the inner shell part 300 and the outer shell 100 can be used as part of another conductive path, so that when the knob 1 is installed on the cooker panel 3, through the user's operation, a conductive path can be formed at the top rod part 200 and the conductive part 310, and the cooker panel 3 can collect signals at the central area and the radial end area of ​​the knob 1 respectively, and the rotation angle of the knob 1 can be obtained according to the signals at these two places. In addition, the knob 1 is installed on the cooker panel 3 through the fixing unit 20, and through the formation of two conductive paths, there is no need to perforate and arrange the wires, so that the convenience of using the knob 1 can be improved.

[0059] like Figure 5 As shown, the center point of the contact portion between the top rod portion 200 and the panel 3 coincides with the rotation axis R of the rotating unit 10. When the user rotates the knob 1, the contact portion between the top rod portion 200 and the panel 3 does not change, while the conductive portion 310 of the inner shell portion 300 rotates with the user's operation, thereby facilitating the calculation of the angle.

[0060] like Figure 5 As shown, part of the rotating unit 10 is movable relative to the fixed unit 20 in the direction of the rotating axis R of the rotating unit 10; there is a gap between the plane where the surface of the inner shell part 300 facing the panel 3 is located and the plane where the surface of the fixed unit 20 connected to the panel 3 is located in the direction of the rotating 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] Furthermore, if Figure 5As shown, the top rod part 200 is a structure with elastic compression, so that the top rod part 200 can always contact with the panel 3, and after the inner shell part 300 is pressed down, the conductive part 310 contacts with the panel 3. In addition, the top rod part 200 contacts with the panel 3, so that the top rod part 200 can also serve as a support for the rotating unit 10, so that the inner shell part 300 can not contact with the panel 3 when it is not pressed down. In other embodiments, other structures can also be provided to support the rotating unit 10, so that the top rod part 200 and the inner shell part 300 can contact with the panel 3 again after the pressing operation.

[0062] And, in another embodiment, the rotating unit 10 is immovable relative to the fixed unit 20 in the direction of the rotating axis R. At this time, 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, it can rotate with the rotating unit 10. During this process, the contact point between the top rod part 200 and the panel 3 does not change, but the conductive part 310 of the inner shell part 300 changes accordingly.

[0063] In the following embodiments, the top rod part 200 is always in contact with the panel 3, and the conductive part 310 is in contact with the panel 3 after being pressed down as an example to further illustrate the specific embodiments. However, the protection scope of the present invention should not be limited to the following embodiments.

[0064] As a specific embodiment of the top rod portion 200 having elastic compression, Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the push rod part 200 includes a push rod 210 and a first elastic member 220. The inner surface of the outer shell 100 is provided with a receiving groove 110. The push rod 210 extends into the receiving groove 110. The first elastic member 220 abuts between the receiving groove 110 and the push rod 210 and applies a force along the direction of 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 extending into the receiving groove 110 is provided with a step structure, and the first elastic member 220 is a spring, one end of the first elastic member 220 abuts against the wall surface of the receiving groove 110, and the other end is sleeved on the step structure. Thus, the push rod 210 can move along the axial direction of the spring, and the spring can apply pressure to the housing 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 the arc-shaped push rod 210.

[0066] like Figure 3 and Figure 6 As shown, the top rod 210 is connected to the side wall of the receiving groove 110 in a snap-fit ​​manner. Figure 3 and Figure 6 As shown, the side wall of the receiving groove 110 is provided with a first clamping groove 111, and the side wall of the top rod 210 is provided with a first buckle 211, and the first buckle 211 is clamped into the first clamping groove 111. As an alternative embodiment, the first clamping groove 111 can also be set on the outer side wall of the top rod 210, and the first buckle 211 can be set 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 housing 100 is provided with a radial wall 120, and a receiving groove 110 is formed; the extension length of the radial wall 120 is less than the thickness of the knob 1, so as to reserve space for the rotation unit 10 to be pressed down. A first clamping groove 111 is provided on the radial wall 120. The push rod 210 is a roughly cylindrical structure, and the end surface extending out of the receiving groove 110, that is, the surface close to the panel 3, is in an arc shape. The circumferential side wall of the push rod 210, close to the end surface facing the receiving groove 110, is provided with the step structure, and one end of the first elastic member 220 is sleeved in the step 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 clamped into the first clamping groove 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 first buckle 211 and the first clamping groove 111 are provided at the relative positions of the push rod 210 and the receiving groove 110.

[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 from each other.

[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 contacting 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 part 300 has a channel 301, and the channel 301 passes through the inner shell part 300 so that the two ends of the second elastic member 312 can 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, a recess 302 is provided on the surface of the inner shell part 300 facing the panel 3, and a 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 shell part 300, Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the inner shell part 300 includes an inner shell 320 and a base 330, the inner shell 320 is fixedly connected to the outer shell 100, and the base 330 is connected to the inner shell 320 by a snap-fitting manner; the inner shell 320 and the base 330 have a channel 301, and the channel 301 is used to accommodate the second elastic member 312; the conductive sheet 311 is laid on the surface of the base 330 facing the panel 3.

[0072] like Figure 2 , Figure 3 and Figure 5 As shown, the inner surface of the outer shell 100 facing the inner shell 320 has a concave structure, and the inner shell 320 has an annular flange connected to the concave structure. A matching groove 130 and a matching block 321 are also provided at the connection between the outer shell 100 and the inner shell 320. The matching block 321 is arranged on the annular flange of the inner shell 320 and extends in the radial direction, so that the outer shell 100 can drive the inner shell 320 to rotate when it rotates. Figure 2 , Figure 3 and Figure 5 As shown, the channel 301 passes through the inner shell 320 and the base 330, and the recess 302 is arranged on the surface of the base 330 facing the panel 3. Figure 2 As shown, the base 330 has a cylindrical structure, and the channel 301 runs through the cylindrical structure.

[0073] like Figure 2 , Figure 3 and Figure 6 As shown, the inner shell 320 has a second slot 322, and the base 330 has a second buckle 331, which is snapped into the second slot 322. In the circumferential direction, there are multiple second slots 322 and second buckles 331, and the multiple second slots 322 and second buckles 331 correspond to each other. Figure 5 and Figure 6 As shown, the inner shell 320 and the base 330 are embedded with each other, and when the knob 1 is pressed down, the outer shell 100 drives the inner shell 320, and the inner shell 320 drives the base 330 to move downward, so that the conductive sheet 311 can contact the panel 3. Correspondingly, when the pressing operation is not performed, there is a gap between the surface of the base 330 facing the panel 3 and the panel 3 to prevent the conductive sheet 311 from contacting the panel 3.

[0074] like Figure 3, Figure 4 and Figure 6 As shown, the fixing unit 20 includes a bracket 400 and a fastener 500, and the bracket 400 is fixedly connected to the panel 3 through the fastener 500. Specifically, the bracket 400 can be fixed to the panel 3 by screws, and in other embodiments, the bracket 400 can also be fixed to the panel 3 by other means such as gluing.

[0075] like Figure 3 , Figure 4 and Figure 6 As shown, part of the bracket 400 extends into the housing 100, and a limiting structure is provided between the bracket 400 and the housing 100, and the limiting structure is used to limit the rotation of the housing 100 relative to the bracket 400; the limiting structure includes a limiting groove 410 and a limiting buckle 140, one of which is provided on the bracket 400 and the other is provided on the housing 100; the housing 100 can be moved relative to the bracket 400 in the direction of the rotation axis R of the rotating unit 10, so that the limiting buckle 140 can be separated from the limiting groove 410. The limiting structure can limit the rotation of the housing 100 relative to the bracket 400, and further limit the rotation of the rotating unit 10 relative to the fixed unit 20. After the housing 100 drives the rotating unit 10 to be pressed down, the rotating unit 10 can rotate relative to the fixed unit 20, thereby avoiding the misoperation of the knob 1 rotating.

[0076] like Figure 3 , Figure 4 and Figure 6 As shown, the outer wall of the bracket 400 is provided with a limiting groove 410, which extends in a direction parallel to the rotation axis R of the rotating unit 10 and passes through the end of the bracket 400 toward the panel 3; the limiting buckle 140 is provided at the edge of the side wall of the housing 100 and extends toward the inside of the housing 100. Further, as Figure 6 As shown, the limit buckle 140 extends into the limit groove 410, and the side wall of the limit groove 410 in the circumferential direction can limit the limit buckle 140. When the housing 100 is pressed down, the limit buckle 140 moves downward and leaves the limit groove 410, so that the housing 100 can rotate relative to the bracket 400. Figure 7 As shown, the top of the limit buckle 140 abuts against the buckle surface 412 of the bracket 400 and rotates on the buckle surface 412. And, as Figure 5 As shown, the inner side wall of the bracket 400 has a radially extending boss 420 , and the boss 420 can abut against the base 330 .

[0077] like Figure 7As shown, the bracket 400 is provided with a portion of the limit groove 410, and a protrusion 411 is provided at the through end of the limit groove 410. The protrusion 411 is located on the surface of the portion of the bracket 400 provided with the limit groove 410 facing the panel 3. This prevents the housing 100 from resetting and rebounding when rotating at a small angle, so that the user can actively compound the housing 100 to have a different feel. Figure 7 As shown, protrusions 411 are provided at the lower ends of the two side walls of the limiting groove 410 , and after the limiting buckle 140 passes over the protrusions 411 , it abuts against the buckle surface 412 .

[0078] On the basis of the above implementation, the knob 1 may further include a gear structure, and the metal conductive sheet 311 is manufactured to have high requirements for miniaturization, and due to the influence of structural assembly, deformation, etc., the trigger point of the conductive sheet 311 on the touch screen 2 will not be a fixed point, that is, the first trigger point of the conductive sheet 311 is the 1st trigger point, and the second trigger point is the 2nd trigger point. In this way, there is a situation that when the rotation angle of the conductive sheet 311 is small, the 1st trigger point and the 2nd trigger point may overlap, and the knob 1 is easily judged as not rotating. This situation can be avoided by setting a gear structure.

[0079] like Figure 8 , Fig. 9 and Fig.10 As shown, 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; a gear structure is provided in the spacing space 700, and the gear structure abuts between the inner shell part 300 and the fixed unit 20 along the radial direction of the rotating unit 10. By providing the gear structure, it is possible to avoid the trigger point of the inner shell part 300 overlapping during two rotations, thereby avoiding inaccurate judgment.

[0080] like Figure 8 , Fig. 9 and Fig.10 As shown, the gear structure includes an elastic abutment portion 610 and a gear groove 620, the elastic abutment portion 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 abutment portion 610 and the gear groove 620 is arranged in the inner shell part 300, and the other is arranged in the fixed unit 20.

[0081] like Fig. 9 and Fig.10As shown, the elastic abutment portion 610 includes a third elastic member 611 and a steel ball 612, and a mounting groove 323 is provided on the surface of the inner shell part 300 facing the partition 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 fixed unit 20; the gear groove 620 is provided on the surface of the fixed unit 20 facing the partition space 700, and the gear groove 620 is a concave-convex structure; the third elastic member 611 is installed in the mounting groove 323, and the steel ball 612 abuts between the gear groove 620 and the third elastic member 611.

[0082] like Fig. 9 and Fig.10 As shown, when the inner shell part 300 is an embodiment of the inner shell 320 and the base 330, a spacing space 700 is formed between the bracket 400, the inner shell 320 and the base 330, and the gear slot 620 is arranged on the inner surface of the bracket 400 and is evenly arranged in a concave-convex structure in the circumferential direction. 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 steel ball 612 against the surface of the gear slot 620.

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

[0084] The embodiment of the present invention further provides a stove, the stove includes the knob 1 for the stove as described above, the stove includes a touch screen 2, as shown in FIG. Figure 1 As shown, the knob 1 is mounted on the touch screen 2. The cooker can collect the user's rotation operation by adopting the knob 1, and the knob 1 is mounted on the cooker panel 3 through the fixing unit 20. By forming two conductive paths, there is no need to perforate and arrange the wires, thereby improving the convenience of using the knob 1.

[0085] like Fig.11 , which shows a schematic diagram when the fastener 500 is a screw, and the knob 1 is fixed to the panel 3 by the screw, so that the knob 1 is installed on the touch screen 2. Specifically, the screw passes through the panel 3 and enters the bracket 400 of the knob 1, and is locked with the bracket 400. Fig.12 As shown, on the basis of screw fastening, a waterproof ring 510 can be further provided between the bottom of the knob 1 and the panel 3 to prevent pollutants such as water from entering the interior of the knob 1. Specifically, a structure for accommodating the waterproof ring 510 is provided at the outer edge of the bracket 400. Fig.13 As shown, it is a schematic diagram showing the connection between the knob 1 and the panel 3 by gluing.

[0086] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A knob for a stove, characterized in that: The knob comprises a rotating unit and a fixing unit, wherein the fixing unit is used to be connected to a panel of the cooker, and the rotating unit is connected to the fixing unit in a rotatable manner relative to the fixing unit; The rotating unit comprises an outer shell, a push rod part and an inner shell part, the outer shell is made of a conductive material, the push rod part and the inner shell part are both arranged in the outer shell and connected to the outer shell, the push rod part is located at the central area of ​​the outer shell, and the inner shell part is located at the radial end area of ​​the outer shell; The top rod part has a conductive material for forming a conductive path with the outer shell and the panel. The inner shell part is provided with a conductive part, one end of which contacts the outer shell, and the other end extends to the surface of the inner shell part facing the panel for contacting the panel.

2. The knob for a cooker according to claim 1, characterized in that: The center point of the contact portion between the push rod portion and the panel coincides with the rotation axis of the rotation unit.

3. The knob for a cooker according to claim 2, characterized in that: The push rod part includes a push rod and a first elastic member. The inner surface of the shell is provided with a receiving groove, the push rod extends into the receiving groove, the first elastic member abuts between the receiving groove and the push rod, and applies a force along the direction of the rotation axis of the rotating unit.

4. The knob for a cooker according to claim 3, characterized in that: The push rod is connected to the side wall of the receiving groove in a clamping manner; And / or, the portion of the push rod extending into the receiving groove is provided with a step 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 step structure; And / or, the top rod is arc-shaped toward the surface of the panel.

5. The knob for a cooker according to any one of claims 1 to 4, characterized in that: The portion of the rotating unit is movable relative to the fixed unit in the direction of the rotation axis of the rotating unit; There is a distance between a plane where a surface of the inner shell portion facing the panel is located, a plane where a surface of the fixing unit connected to the panel is located, and a direction of a rotation axis of the rotating unit.

6. The knob for a cooker according to claim 5, characterized in that: The inner shell portion is arranged around the top rod portion, and the inner shell portion and the top rod portion are spaced apart.

7. The knob for a cooker according to claim 5, characterized in that: The conductive part comprises a conductive sheet and a second elastic member, wherein the conductive sheet is laid on a surface of the inner shell part facing the panel so as to be in contact with the panel; The second elastic member extends in the inner housing portion along a direction parallel to the rotation axis of the rotation unit; One end of the second elastic member contacts the housing, and the other end contacts the conductive sheet.

8. The knob for a cooker according to claim 7, characterized in that: The inner shell part includes an inner shell and a base, the inner shell is fixedly connected to the outer shell, and the base is connected to the inner shell in a snap-fit ​​manner; the inner shell and the base have a channel, and the channel is used to accommodate the second elastic member; the conductive sheet is laid on the surface of the base facing the panel.

9. The knob for a cooker according to claim 5, characterized in that: The fixing unit comprises a bracket and a fastener, and the bracket is fixedly connected to the panel through the fastener; Part of the bracket extends into the shell, and a limiting structure is provided between the bracket and the shell, and the limiting structure is used to limit the rotation of the shell relative to the bracket; the limiting structure includes a limiting groove and a limiting buckle, and one of the limiting groove and the limiting buckle is provided on the bracket, and the other is provided on the shell; The housing can be movable relative to the bracket in the direction of the rotation axis of the rotating unit so that the limiting buckle can be separated from the limiting groove.

10. The knob for a cooker according to claim 9, characterized in that: The outer side wall of the bracket is provided with the limiting groove, which extends in a direction parallel to the rotation axis of the rotating unit and passes through the end of the bracket facing the panel; the limiting buckle is arranged on the edge of the side wall of the shell and extends toward the inside of the shell.

11. The knob for a cooker according to claim 10, characterized in that: The portion of the bracket provided with the limiting groove and a protrusion are provided at the through end of the limiting groove, and the protrusion is located on the surface of the portion of the bracket provided with the limiting groove facing the panel.

12. The knob for a cooker according to claim 1, characterized in that: The inner shell part is located inside the fixing unit, and a separation space is formed between the inner shell part and the fixing unit; A gear structure is arranged in the interval space, and the gear structure abuts between the inner shell part and the fixing unit along the radial direction of the rotating unit.

13. The knob for a cooker according to claim 12, characterized in that: The gear structure includes an elastic abutment portion and a gear groove, wherein the elastic abutment portion is arranged along the radial direction of the rotating unit, and the gear groove is arranged along the circumferential direction of the rotating unit; one of the elastic abutment portion and the gear groove is arranged on the inner shell part, and the other is arranged on the fixed unit.

14. The knob for a cooker according to claim 13, characterized in that: The elastic abutment portion includes a third elastic member and a steel ball, and a mounting groove is provided on a surface of the inner shell portion facing the spacing space, the mounting groove is arranged along the radial direction of the rotating unit, and has an opening on a surface facing the fixed unit; The gear slot is arranged on the surface of the fixing unit facing the spacing space, and the gear slot is a concave-convex structure; the third elastic member is installed in the installation slot, and the steel ball is abutted between the gear slot and the third elastic member.

15. The knob for a cooker according to any one of claims 13 to 14, characterized in that: Two elastic abutting portions are arranged in the spacing space, and the two elastic abutting portions are arranged opposite to each other along the radial direction of the rotating unit.

16. A cooking appliance, characterized in that: The cooker comprises a knob for a cooker according to any one of claims 1 to 15, the cooker comprises a touch screen, and the knob is mounted on the touch screen.

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