Knob for kitchen range and kitchen range

Abstract

The utility model discloses a rotary knob for a kitchen range and the kitchen range. A fixing unit of the rotary knob is used for being connected with a panel of the kitchen range, and a rotating unit is connected with the fixing unit in a manner of rotating relative to the fixing unit; an interval space is formed between the rotating unit and the fixing unit, a gear structure is arranged in the interval space, and the gear structure abuts against the position between the rotating unit and the fixing unit in the radial direction of the rotating unit. By adopting the scheme, the gear structure is arranged, so that the trigger points of the inner shell part can be prevented from being overlapped during two times of rotation, and inaccurate judgment is further avoided. The gear structure is arranged in the interval space, on one hand, the gear structure can be arranged on the rotating unit and the fixing unit, the gear structure can achieve corresponding functions, and on the other hand, foreign matter can be prevented from entering the gear structure to a certain extent through the interval space. And moreover, the gear structure is arranged along the radial direction, so that the rotation operation of the user can be adapted, and the rotation of the user is limited by the gear structure.

Description

Technical Field

[0001] This utility model 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] When the knob and touchscreen are not connected by wires, electrical conduction can be achieved by the knob contacting the touchscreen. However, in actual product development, due to the difficulty in making the conductive sheet used to achieve electrical conduction, such as a metal sheet, very small, and the influence of structural component assembly and deformation, the trigger point of the metal sheet on the touchscreen (TP) is not fixed. That is, the first trigger point of the metal sheet on the TP is the primary trigger point, and the second trigger point is the secondary trigger point. This leads to a situation where, when the metal sheet rotates at a small angle, the primary and secondary trigger points may overlap. In this case, the TP will determine that the knob has not rotated, affecting the knob's usability. Utility Model Content

[0004] The technical problem to be solved by this utility model 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] A gap space is formed between the rotating unit and the fixed unit. A gear structure is provided in the gap space. The gear structure abuts against the rotating unit and the fixed unit along the radial direction of the rotating unit.

[0008] In this design, by setting up a gear shift structure, the trigger points in the inner shell can be avoided during two rotations, thus preventing inaccurate judgments. Placing the gear shift structure within the interval space allows it to be positioned between the rotating and fixed units, enabling it to perform its function. Furthermore, the interval space helps prevent foreign objects from entering the gear shift structure. Additionally, arranging the gear shift structure radially accommodates the user's rotational operation, limiting the user's rotation to the gear shift structure.

[0009] Preferably, the gear shift structure includes an elastic abutment portion and a gear shift groove. The elastic abutment portion is arranged along the radial direction of the rotating unit, and the gear shift groove is arranged along the circumferential direction of the rotating unit. One of the elastic abutment portion and the gear shift groove is disposed in the rotating unit, and the other is disposed in the fixed unit.

[0010] In this solution, the slot can accommodate the elastic contact part, so that the rotation angle of the conductive sheet can meet the detection requirements.

[0011] Preferably, the gear slot is a concave-convex structure disposed on the inner surface of the fixed unit, wherein the concave part of the gear slot is recessed relative to the rotating unit in the radial direction of the rotating unit, and the convex part of the gear slot is protruding relative to the rotating unit in the radial direction of the rotating unit.

[0012] The elastic abutment portion includes a first elastic element and a steel ball. The steel ball is arranged close to the gear slot, and the first elastic element abuts between the steel ball and the rotating unit to abut the steel ball against the gear slot.

[0013] In this design, the steel ball can move on the groove of the concave-convex structure, and the first elastic element can adapt to the radial movement of the concave-convex structure, so that the steel ball can always abut against the groove.

[0014] Preferably, the rotating unit includes an inner shell portion, the fixing unit includes a bracket, the inner shell portion is located inside the bracket, and the space between the inner shell portion and the bracket is formed.

[0015] Preferably, the inner shell portion includes an inner shell and a base, the base being connected to the inner shell by a snap-fit ​​connection; the inner shell includes a top wall and an inner side wall, the base has a bottom wall, the support has an outer side wall, and the top wall, the inner side wall, the bottom wall, and the outer side wall together form the space.

[0016] Preferably, the inner sidewall is fitted with the bottom wall, the inner surface of the outer sidewall has a stepped structure, the stepped structure also has an abutting portion extending into the space, the bottom wall abuts against the abutting portion, and the gear slot is located above the abutting portion.

[0017] Preferably, a mounting groove is provided at the junction of the top wall and the inner side wall, the mounting groove is arranged along the radial direction of the rotating unit and has an opening facing the outer side wall; the first elastic member is installed in the mounting groove, and the steel ball abuts between the gear slot and the first elastic member.

[0018] In this design, the installation groove facilitates the installation and arrangement of the flexible abutment part.

[0019] Preferably, the space between the two elastic abutment portions are provided, and the two elastic abutment portions are arranged opposite each other along the radial direction of the rotating unit.

[0020] Preferably, the rotating unit further includes a housing and a push rod portion. The housing is made of a conductive material. The push rod portion and the inner housing portion are both disposed inside the housing and connected to the housing. The push rod portion is located in the central region of the housing, and the inner housing portion is located in the radial end region of the housing.

[0021] 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.

[0022] In this design, the outer shell and top rod portion serve as part of a conductive path, while the conductive part of the inner shell and the outer shell serve as part of another conductive path. Thus, when the knob is installed on the cooktop panel, user operation creates a conductive path between the top rod portion and the conductive part. This allows the cooktop panel to collect signals at the center and radial end areas of the knob, respectively, and the knob's rotation angle can be determined from these signals. Furthermore, the knob is mounted to the cooktop panel via a fixing unit. The formation of these two conductive paths eliminates the need for perforated wiring, thereby improving the ease of use of the knob.

[0023] A cooktop includes a knob as described above, and the cooktop includes a touchscreen, the knob being mounted on the touchscreen.

[0024] The positive and progressive effects of this invention are as follows: By setting the gear shift structure, the trigger points in the inner shell can be avoided during two rotations, thus preventing inaccurate judgment. Placing the gear shift structure within the interval space allows it to be positioned between the rotating and fixed units, enabling it to perform its corresponding function. Furthermore, the interval space can, to some extent, prevent foreign objects from entering the gear shift structure. Additionally, arranging the gear shift structure radially accommodates the user's rotational operation, thus restricting the user's rotation by the gear shift structure. Attached Figure Description

[0025] Figure 1 A schematic diagram of the knob installed on a stove according to an embodiment of this utility model;

[0026] Figure 2 An exploded view of a knob provided in an embodiment of this utility model;

[0027] Figure 3 for Figure 2 An exploded view of the center knob from another perspective;

[0028] Figure 4 A cross-sectional view of a knob provided in an embodiment of the present utility model, which provides a structural schematic of the gear position structure;

[0029] Figure 5 A partially enlarged cross-sectional view of the knob provided in an embodiment of this utility model;

[0030] Figure 6 Another cross-sectional view of the knob provided in an embodiment of the present utility model, which provides a structural schematic of the gear position structure;

[0031] Figure 7 Another cross-sectional view of the knob provided in an embodiment of this utility model;

[0032] Figure 8 Another cross-sectional view of the knob provided in this embodiment of the utility model shows a schematic diagram of the conductive part.

[0033] Explanation of reference numerals in the attached figures:

[0034] Knob 1, Rotating unit 10, Outer shell 100, Receiving groove 110, Top rod part 200, Top rod 210, Third elastic element 220, Inner shell part 300, Conductive part 310, Conductive sheet 311, Second elastic element 312, Inner shell 320, Second slot 322, Mounting groove 323, Top wall 324, Inner side wall 325, Base 330, Second buckle 331, Bottom wall 332, Vertical extension part 333, Fixing unit 20, Bracket 400, Outer side wall 420, Abutting part 421, Fastener 500, Elastic abutting part 610, First elastic element 611, Steel ball 612, Gear slot 620, Recess 621, Protrusion 622, Spacing space 700, Touch screen 2, Panel 3, Rotation axis R. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] like Figure 2 and Figure 3As 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.

[0038] like Figure 4 , Figure 5 and Figure 6 As shown, a space 700 is formed between the rotating unit 10 and the fixed unit 20. A gear shift structure is provided within the space 700, abutting against the area between the rotating unit 10 and the fixed unit 20 along the radial direction of the rotating unit 10. By providing the gear shift structure, overlap of the trigger points in the inner shell portion 300 during two rotations can be avoided, thus preventing inaccurate judgment. Placing the gear shift structure within the space 700 allows it to be positioned between the rotating unit 10 and the fixed unit 20, enabling it to perform its corresponding function. Furthermore, the space 700 can, to some extent, prevent foreign objects from entering the gear shift structure. Additionally, arranging the gear shift structure radially accommodates the user's rotational operation, restricting the user's rotation by the gear shift structure.

[0039] In practical implementation, the interval space 700 can be roughly in the shape of a ring. The gear structure can play a role in avoiding the overlap of trigger points within the ring space. Thus, when the user performs a rotation operation, the gear structure can play a corresponding role when the user rotates to any angle.

[0040] This gear shift structure can be implemented in different ways. As one specific implementation method provided in this embodiment, such as... Figure 2 As shown, the gear shift structure includes an elastic abutment portion 610 and a gear shift groove 620. The elastic abutment portion 610 is arranged along the radial direction of the rotating unit 10, and the gear shift groove 620 is arranged along the circumferential direction of the rotating unit 10. One of the elastic abutment portion 610 and the gear shift groove 620 is disposed in the rotating unit 10, and the other is disposed in the fixed unit 20. The gear shift groove 620 can accommodate the elastic abutment portion 610, so that the rotation angle of the conductive sheet 311 can meet the detection requirements. Figure 4 , Figure 5 and Figure 6 As shown, the gear slot 620 is disposed on the fixed unit 20, and the elastic abutment part 610 is disposed on the rotating unit 10, and can rotate relative to the gear slot 620 on the fixed unit 20 as the rotating unit 10 rotates.

[0041] As a specific embodiment of the gear slot 620 and the elastic abutment portion 610, such as Figure 4 , Figure 5and Figure 6 As shown, the gear slot 620 is a concave-convex structure provided on the inner surface of the fixed unit 20. The concave portion 621 of the gear slot 620 is recessed relative to the rotating unit 10 in the radial direction of the rotating unit 10, and the convex portion 622 of the gear slot 620 is protruding relative to the rotating unit 10 in the radial direction of the rotating unit 10. The elastic abutment portion 610 includes a first elastic member 611 and a steel ball 612. The steel ball 612 is arranged close to the gear slot 620, and the first elastic member 611 abuts against the steel ball 612 and the rotating unit 10 to abut the steel ball 612 against the gear slot 620. The steel ball 612 can move on the concave-convex structure of the gear slot 620, and the first elastic member 611 can adapt to the radial movement changes of the concave-convex structure, so that the steel ball 612 can always abut against the gear slot 620.

[0042] Specifically, such as Figure 6 As shown, in the circumferential direction of the fixed unit 20, the gear slot 620 has multiple recesses 621 and multiple protrusions 622, with the recesses 621 and protrusions 622 adjacent to each other forming a ring-shaped wave pattern. Under the action of the first elastic member 611, the steel ball 612 can pass through each protrusion 622 and recess 621 in sequence. When the user performs a rotation operation, the steel ball 612 preferably stays in the recess 621. Two adjacent recesses 621 form the minimum angle span for the rotation of the knob 1. Specifically, when the steel ball 612 is in the previous recess 621, it forms a primary trigger point; when it rotates to the next recess 621, it forms a secondary trigger point. These two trigger points do not overlap and can be recognized by the touch screen 2 of the panel 3, thereby determining the rotation angle.

[0043] As a specific implementation method for forming the interval space 700, such as Figure 2 and Figure 3 As shown, the rotating unit 10 includes an inner shell portion 300, and the fixing unit 20 includes a bracket 400. The inner shell portion 300 is located inside the bracket 400, and a gap space 700 is formed between the inner shell portion 300 and the bracket 400.

[0044] Specifically, such as Figure 4 , Figure 5 and Figure 6 As shown, the inner shell portion 300 includes an inner shell 320 and a base 330, with the base 330 connected to the inner shell 320 by a snap-fit ​​connection; the inner shell 320 includes a top wall 324 and an inner side wall 325, the base 330 has a bottom wall 332, and the support 400 has an outer side wall 420. The top wall 324, the inner side wall 325, the bottom wall 332, and the outer side wall 420 together form a space 700.

[0045] Furthermore, such as Figure 2 , Figure 3 and Figure 7As shown, the inner shell 320 has a second slot 322, and the base 330 has a second buckle 331, which is engaged with 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 one-to-one.

[0046] like Figure 5 As shown, the inner wall 325 is fitted with the bottom wall 332, and the inner surface of the outer wall 420 has a stepped structure. The stepped structure also has an abutment portion 421 extending into the space 700. The bottom wall 332 abuts against the abutment portion 421, and the stop groove 620 is located above the abutment portion 421. Specifically, as shown... Figure 5 As shown, the top wall 324 is substantially flush with or overlaps the outer wall 420, thus essentially enclosing the upper space at the top. The base 330 has a U-shaped structure, with vertical extensions 333 on both sides of the bottom wall 332. The left vertical extension 333 abuts against the abutment 421, and the right vertical extension 333 fits into the inner wall 325. The inner surface of the outer wall 420 has a multi-step structure, and the stop groove 620 is provided in the middle area of ​​this step structure.

[0047] like Figure 4 , Figure 5 and Figure 6 As shown, a mounting groove 323 is provided at the junction of the top wall 324 and the inner side wall 325. The mounting groove 323 is arranged along the radial direction of the rotating unit 10 and has an opening facing the outer side wall 420. The first elastic member 611 is installed in the mounting groove 323, and the steel ball 612 abuts against the stop groove 620 and the first elastic member 611. The mounting groove 323 facilitates the installation and arrangement of the elastic abutment part 610.

[0048] like Figure 5 and Figure 6 As shown, the inner wall 325 has a generally cylindrical structure on the surface within the space 700, which has an opening toward the outer wall 420 and forms a mounting groove 323.

[0049] like Figure 4 and Figure 6 As shown, two elastic abutment parts 610 are provided in the interval space 700, and the two elastic abutment parts 610 are arranged opposite each other along the radial direction of the rotating unit 10.

[0050] like Figure 2 and Figure 3As shown, the rotating unit 10 also includes a housing 100 and a push rod portion 200. The housing 100 is made of conductive material. The push rod portion 200 and the inner housing portion 300 are both disposed inside the housing 100 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. The push rod portion 200 has a conductive material for forming a conductive path with the housing 100 and the panel 3. The inner housing portion 300 is provided with a conductive part 310. One end of the conductive part 310 contacts the housing 100, and the other end extends to the surface of the inner housing portion 300 facing the panel 3 for contacting the panel 3.

[0051] 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 3 As shown, the outer casing 100 has a generally cylindrical structure. Both the top rod portion 200 and the inner casing portion 300 are located within the internal space of the outer casing 100. When the outer casing 100 is rotated by the user, both the top rod portion 200 and the inner casing portion 300 can rotate along with the outer casing 100. Figure 4 As shown, the fixing unit 20 is also located inside the outer casing 100.

[0052] The outer shell 100 is made of a conductive material. The top rod portion 200 has a conductive material for forming a conductive path with the outer shell 100 and the panel 3. The inner shell portion 300 has a conductive part 310 inside, one end of which contacts the outer shell 100, and the other end extends to the surface of the inner shell portion 300 facing the panel 3 for contact with the panel 3. The top rod portion 200 may be made of a conductive material or may contain conductive material, so that the top rod portion 200 can form a conductive path with the outer shell 100. The other parts of the inner shell portion 300, except for the conductive part 310, are made of a non-conductive material, so that the inner shell portion 300 forms a conductive path with the outer shell 100 at the location of the conductive part 310.

[0053] The outer casing 100 and the top rod portion 200 can serve as part of a conductive path, while the conductive portion 310 of the inner casing portion 300 and the outer casing 100 can serve as part of another conductive path. Thus, when the knob 1 is installed on the cooktop panel 3, a conductive path can be formed at the top rod portion 200 and the conductive portion 310 through user operation. This allows the cooktop panel 3 to collect signals at the center area and radial end area of ​​the knob 1, respectively, and the rotation angle of the knob 1 can be determined based on these signals. Furthermore, the knob 1 is installed on the cooktop panel 3 via the fixing unit 20. The formation of two conductive paths eliminates the need for perforated wiring, thereby improving the ease of use of the knob 1.

[0054] like Figure 4 and Figure 8 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 part 310 of the inner shell portion 300 rotates with the user's operation, thus facilitating angle calculation.

[0055] Further, the push rod portion 200 includes a push rod 210 and a third elastic member 220. The inner surface of the outer casing 100 is provided with a receiving groove 110. The push rod 210 extends into the receiving groove 110. The third 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. The inner casing 320 is connected to the outer casing 100 and can rotate with the rotation of the outer casing 100. The conductive portion 310 includes a conductive sheet 311 and a second elastic member 312. The conductive sheet 311 is laid on the surface of the inner casing portion 300 facing the panel 3 for contact with the panel 3. The second elastic member 312 extends within the inner casing portion 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 casing 100, and the other end contacts the conductive sheet 311.

[0056] This utility model embodiment also provides a stove, which includes a knob 1 as described above, and a touch screen 2, with the knob 1 mounted on the touch screen 2.

[0057] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A knob for a stove, characterized in that, The knob includes a rotating unit and a fixing unit. The fixing unit is used to connect to the panel of the stove, and the rotating unit is connected to the fixing unit in a rotatable manner relative to the fixing unit. A gap space is formed between the rotating unit and the fixed unit. A gear structure is provided in the gap space. The gear structure abuts against the rotating unit and the fixed unit along the radial direction of the rotating unit.

2. The knob for a stove as described in claim 1, characterized in that, The gear shift structure includes an elastic abutment and a gear shift groove. The elastic abutment is arranged along the radial direction of the rotating unit, and the gear shift groove is arranged along the circumferential direction of the rotating unit. One of the elastic abutment and the gear shift groove is disposed in the rotating unit, and the other is disposed in the fixed unit.

3. The knob for a stove as described in claim 2, characterized in that, The gear slot is a concave-convex structure provided on the inner surface of the fixed unit. The concave part of the gear slot is recessed relative to the rotating unit in the radial direction of the rotating unit, and the convex part of the gear slot is protruding relative to the rotating unit in the radial direction of the rotating unit. The elastic abutment portion includes a first elastic element and a steel ball. The steel ball is arranged close to the gear slot, and the first elastic element abuts between the steel ball and the rotating unit to abut the steel ball against the gear slot.

4. The knob for a stove as described in claim 3, characterized in that, The rotating unit includes an inner shell portion, and the fixing unit includes a bracket. The inner shell portion is located inside the bracket, and the gap space is formed between the inner shell portion and the bracket.

5. The knob for a stove as described in claim 4, characterized in that, The inner shell portion includes an inner shell and a base, and the base is connected to the inner shell by a snap-fit ​​connection. The inner shell includes a top wall and an inner side wall, the base has a bottom wall, and the bracket has an outer side wall. The top wall, the inner side wall, the bottom wall, and the outer side wall together form the space.

6. The knob for a stove as described in claim 5, characterized in that, The inner sidewall is fitted into the bottom wall, and the inner surface of the outer sidewall has a stepped structure. The stepped structure also has an abutting portion extending into the space. The bottom wall abuts against the abutting portion, and the gear slot is located above the abutting portion.

7. The knob for a stove as described in claim 6, characterized in that, An installation groove is provided at the junction of the top wall and the inner side wall. The installation groove is arranged along the radial direction of the rotating unit and has an opening facing the outer side wall. The first elastic element is installed in the installation groove, and the steel ball abuts between the gear slot and the first elastic element.

8. The knob for a stove as described in any one of claims 1-7, characterized in that, The space between the two elastic abutment parts are provided, and the two elastic abutment parts are arranged opposite each other along the radial direction of the rotating unit.

9. The knob for a stove as described in claim 4, characterized in that, The rotating unit also includes a housing and a push rod portion. The housing is made of conductive material. The push rod portion and the inner housing portion are both disposed inside the housing and connected to the housing. The push rod portion is located in the central region of the housing, and the inner housing portion is located in the radial end region of the housing. 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.

10. A stove, characterized in that, The cooktop includes a knob for use as described in any one of claims 1-9, the cooktop includes a touch screen, and the knob is mounted on the touch screen.

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