A rotary shift knob switch

Abstract

The present invention relates to a rotary shift knob switch, which comprises a base, a housing, a shifting mechanism and a pressing mechanism. The housing is covered on the base. The housing is provided with a stepped portion, and the stepped portion is provided with grating teeth and an installation groove. The installation groove is provided with a spring piece having bumps. The shifting mechanism and the pressing mechanism are respectively installed in the housing. The shifting mechanism comprises a display component and a PCBA component installed on a mounting seat. The PCBA component is provided with a sensor, and the sensor is buckled on the grating teeth. The mounting seat is provided with a toothed groove, and the toothed groove is in contact with the bumps. The beneficial effects of the present invention are embodied as follows: a grating is directly arranged on the housing to realize rotary encoding with the PCBA component, which simplifies the overall structure of internal parts. Moreover, a spring piece is arranged on the housing, so that during the rotation of the housing, the spring piece is in contact with the toothed groove, and a more intuitive gear feeling can be generated on the housing. Its structure is simple, convenient for production, easy to disassemble and assemble, effectively shortens the production cycle and reduces the production cost.

Description

Technical Field

[0001] The present invention relates to a switch knob, in particular to a rotary shift knob switch that combines rotation and pressing operations. Background Art

[0002] With the continuous development of society, electronic products are rapidly updated. Among current electronic products, various switches are needed. Among them, the rotary switch is widely used because of its convenient shifting operation. At present, the rotary switch on the market drives the internal electrical components to switch gears by rotating the outer shell. In order to achieve the gear feeling during the adjustment process, a relatively complex buckle structure needs to be set inside, so as to improve the hand feeling during rotation and realize the return during the use of the switch. Therefore, this kind of rotary switch has a large number of internal parts, making the overall structure very complex, not facilitating the disassembly and assembly of the product, and increasing the production cost. Summary of the Invention

[0003] In order to solve the above problems, the present invention aims to provide a switch knob, in particular to a rotary shift knob switch that combines rotation and pressing operations.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a rotary shift knob switch, including a base, a housing, a shifting mechanism and a pressing mechanism. The housing is rotatably covered on the base. The housing is provided with an installation cavity. A stepped portion protruding into the installation cavity is provided on the inner side of the housing. The stepped portion is provided with a plurality of grating teeth arranged in an array. At least one set of axially symmetric installation grooves is provided on the inner side wall of the stepped portion. Elastic pieces are arranged in the installation grooves. The elastic pieces are provided with bumps protruding in the direction of the axis of the housing. The shifting mechanism and the pressing mechanism are respectively installed in the housing. The shifting mechanism includes a display component, a PCBA component and a mounting seat arranged between the base and the housing. The display component and the PCBA component are respectively installed on the mounting seat. The display component is electrically connected to the PCBA component. The PCBA component is provided with a photoelectric sensor. The photoelectric sensor is buckled on the grating teeth. A plurality of tooth-shaped grooves arranged in an array are provided on the mounting seat. The plurality of tooth-shaped grooves are respectively adjustably in contact with the bumps.

[0005] Wherein, the pressing mechanism includes a switch, a pressing column and an elastically deformable pressing element. The pressing column is fixed on the base. The switch is installed at the bottom of the PCBA component and directly above the pressing column. The switch is electrically connected to the PCBA component. The pressing element is installed between the base and the mounting seat and sleeved outside the pressing column. The housing drives the mounting seat and the PCBA component to move axially relative to the base. The switch can contact or separate from the upper end of the pressing column as the housing is pressed down.

[0006] Among them, the mounting base includes a lower cover and a bracket. The bracket is fixed to the lower cover by screws. The lower cover is movably connected to the base. The display component and the PCBA component are respectively mounted on the bracket. A plurality of the toothed grooves are integrally formed on the outer side wall of the lower cover.

[0007] Among them, the mounting base of the present invention also adopts another structure. The mounting base includes a lower cover and a bracket. The bracket is fixed to the lower cover by screws. The lower cover is movably connected to the base. The display component and the PCBA component are respectively mounted on the bracket. A plurality of the toothed grooves are integrally formed on the outer side wall of the bracket.

[0008] Among them, the lower cover is provided with a plurality of guide posts and a plurality of hooks. The base is provided with guide holes that cooperate with the plurality of guide posts. The plurality of guide posts are correspondingly inserted into the plurality of guide holes. The base is provided with locking holes that cooperate with the plurality of hooks. The hooks pass through the locking holes and are connected to the lower surface of the base to prevent the mounting base and the housing from completely detaching from the base.

[0009] Among them, the bracket is integrally provided with a support platform. The support platform is provided with positioning posts and fixing posts. The display component and the PCBA component are both provided with positioning holes that cooperate with the positioning posts and fixing holes that cooperate with the fixing posts. The positioning posts are correspondingly inserted into the positioning holes. The fixing posts are correspondingly passed through the fixing holes. The fixing posts lock the PCBA component and the display component to the support platform in sequence by screws.

[0010] Among them, the display component includes a lamp cover and a diaphragm. The lamp cover is electrically connected to the PCBA component. The diaphragm is fixed to the surface of the lamp cover by adhesive or screws.

[0011] Among them, the housing is provided with a cover plate. The cover plate is fixed to the upper end surface of the housing by double-sided tape.

[0012] Among them, the cover plate of the present invention also adopts another mounting structure. The housing is provided with a mounting sleeve. A clamping block is arranged inside the housing. The mounting sleeve is provided with a clamping hole. The mounting sleeve is clamped to the clamping block through the clamping hole and is fixed to the upper end surface of the housing by double-sided tape. The cover plate is fixed to the mounting sleeve by double-sided tape.

[0013] Among them, a rubber pad is arranged between the base and an externally connected cooking range. The base and the cooking range are fixed by screws.

[0014] The beneficial effects of the present invention are as follows: The present invention aims to provide a rotary shift knob switch. By directly setting a grating and a PCBA component on the outer shell to achieve rotary encoding, there is no need for an additional independent shift structure, which simplifies the overall structure of the internal parts. Moreover, a shrapnel is provided on the outer shell, so that during the rotation of the outer shell, the shrapnel contacts the tooth-shaped groove on the mounting seat, which can generate a more intuitive gear feeling on the outer shell. Its structure is simple, convenient for production, easy to disassemble and assemble, effectively shortening the production cycle and reducing the production cost. Description of the Drawings

[0015] Figure 1 It is a schematic three-dimensional structure diagram of the first embodiment of the present invention as a whole.

[0016] Figure 2 It is an exploded view of the overall structure of the first embodiment of the present invention.

[0017] Figure 3 It is a cross-sectional view of the overall structure of the first embodiment of the present invention.

[0018] Figure 4 It is a schematic structure diagram of the outer shell of the first embodiment of the present invention.

[0019] Figure 5 It is a cross-sectional view of the assembly structure of the lower cover and the shrapnel of the first embodiment of the present invention.

[0020] Figure 6 It is a schematic structure diagram of the base of the first embodiment of the present invention.

[0021] Figure 7 It is a schematic diagram of the assembly structure of the whole of the first embodiment of the present invention and the stove top.

[0022] Explanation of the reference numerals in the drawings: 1 - base; 2 - outer shell; 4 - pressing mechanism; 5 - installation cavity; 6 - step portion; 7 - grating teeth; 8 - installation groove; 9 - shrapnel; 10 - bump; 11 - display component; 12 - PCBA component; 13 - bracket; 14 - photoelectric sensor; 15 - tooth-shaped groove; 16 - switch; 17 - pressing element; 18 - pressing column; 19 - lamp cover; 20 - diaphragm; 21 - cover plate; 22 - lower cover; 23 - guide post; 24 - guide hole; 25 - support platform; 26 - positioning post; 27 - positioning hole; 28 - fixing post; 29 - fixing hole; 30 - clamping hole; 31 - rubber pad;

[0023] 32 - installation sleeve; 33 - clamping block; 34 - clamping hole; 35 - double-sided adhesive; 36 - hook; 37 - glass panel of the stove top; 38 - fixing piece. Detailed Description of the Invention

[0024] The following will describe in detail the specific embodiments of the present invention with reference to the drawings: Embodiment 1,

[0025] As Figure 1-7As shown in the figure, a rotary shift knob switch includes a base 1, a housing 2, a shift mechanism, and a pressing mechanism 4. The housing 2 is rotatably covered on the base 1. The housing 2 is provided with an installation cavity 5. The inner side of the housing 2 is provided with a stepped portion 6 protruding into the installation cavity 5. The stepped portion 6 is provided with a plurality of grating teeth 7 arranged in an array. At least one set of axially symmetric installation grooves 8 are provided on the inner side wall of the stepped portion 6. Elastic pieces 9 are arranged in the installation grooves 8. The elastic pieces 9 are provided with bumps 10 protruding in the direction of the axis of the housing 2. The shift mechanism and the pressing mechanism 4 are respectively installed in the housing 2. The shift mechanism includes a display component 11, a PCBA component 12, and a mounting seat arranged between the base 1 and the housing 2. The display component 11 and the PCBA component 12 are respectively installed on the mounting seat. The display component 11 is electrically connected to the PCBA component 12. The PCBA component 12 is provided with a photoelectric sensor 14. The photoelectric sensor 14 is buckled on the grating teeth 7. A plurality of tooth-shaped grooves 15 are arranged in an array on the mounting seat. The plurality of tooth-shaped grooves 15 are adjustably in contact with the bumps 10 respectively.

[0026] The pressing mechanism 4 includes a switch 16, a pressing column 18, and an elastically deformable pressing element 17. The pressing column 18 is fixed on the base 1. The switch 16 is installed at the bottom of the PCBA component 12 and is located directly above the pressing column 18. The switch 16 is electrically connected to the PCBA component 12. The pressing element 17 is installed between the base 1 and the mounting seat and is sleeved outside the pressing column 18. The housing 2 drives the mounting seat and the PCBA component 12 to move axially relative to the base 1. The switch 16 can contact or separate from the upper end of the pressing column 18 as the housing 2 is pressed down.

[0027] The mounting seat includes a lower cover 22 and a bracket 13. The bracket 13 and the lower cover 22 are fixed by screws. The lower cover 22 is movably connected to the base 1. The display component 11 and the PCBA component 12 are respectively installed on the bracket 13. A plurality of tooth-shaped grooves 15 are integrally formed on the outer side wall of the lower cover 22.

[0028] The lower cover 22 is provided with a plurality of guide posts 23 and a plurality of hooks 36. The base 1 is provided with guide holes 24 that cooperate with the plurality of guide posts 23. The plurality of guide posts 23 are correspondingly inserted into the plurality of guide holes 24. The base 1 is provided with locking holes 30 that cooperate with the plurality of hooks 36. The hooks 36 pass through the locking holes 30 and are connected to the lower surface of the base 1 to prevent the mounting seat and the housing 2 from completely separating from the base 1.

[0029] The support 13 is integrally formed with a support platform 25. The support platform 25 is provided with a positioning post 26 and a fixing post 28. The display component 11 and the PCBA component 12 are both provided with a positioning hole 27 that cooperates with the positioning post 26 and a fixing hole 29 that cooperates with the fixing post 28. The positioning post 26 is correspondingly inserted into the positioning hole 27, and the fixing post 28 is correspondingly passed through the fixing hole 29. The fixing post 28 locks the PCBA component 12 and the display component 11 onto the support platform 25 in sequence through screws.

[0030] The display component 11 includes a lamp shade 19 and a diaphragm 20. The lamp shade 19 is electrically connected to the PCBA component 12, and the diaphragm 20 is fixed to the surface of the lamp shade 19 by adhesive or screws.

[0031] The housing 2 is provided with an installation sleeve 32. Inside the housing 2, there is a clamping block 33. The installation sleeve 32 is provided with a clamping hole 34. The installation sleeve 32 is clamped with the clamping block 33 through the clamping hole 34 and fixed to the upper end surface of the housing 2 by double-sided tape 35. The cover plate 21 is fixed to the installation sleeve 32 by double-sided tape 35.

[0032] As Figure 2 、 3 shown in Figures 6 and 7, a rubber pad 31 is provided between the base 1 and the glass panel 37 of the externally connected cooking range. Two anti-fooling insertion blocks and two barbs (as Figure 3 shown) extend downward from the lower surface of the base 1. Two screw holes (as Figure 6 shown) are provided on the lower surface of the base. The base 1 and the glass panel 37 of the cooking range are fixed through screws installed on the fixing member 38. The base 1 and the fixing member 38 are respectively located on the upper and lower sides of the glass panel 37 of the cooking range. The base is first positioned and installed on the cooking range through the anti-fooling insertion blocks, clamped with the glass panel 37 through the barbs, and then fixed through screws.

[0033] Embodiment 2. A rotary shift knob switch includes a base 1, a housing 2, a shifting mechanism, and a pressing mechanism 4. The housing 2 is rotatably covered on the base 1. The housing 2 is provided with an installation cavity 5. An inner side of the housing 2 is provided with a stepped portion 6 protruding into the installation cavity 5. The stepped portion 6 is provided with a plurality of grating teeth 7 arranged in an array. At least one set of axially symmetric installation grooves 8 are provided on an inner side wall of the stepped portion 6. Elastic pieces 9 are arranged in the installation grooves 8. The elastic pieces 9 are provided with bumps 10 protruding in the axial direction of the housing 2. The shifting mechanism and the pressing mechanism 4 are respectively installed in the housing 2. The shifting mechanism includes a display component 11, a PCBA component 12, and a mounting seat arranged between the base 1 and the housing 2. The display component 11 and the PCBA component 12 are respectively installed on the mounting seat. The display component 11 is electrically connected to the PCBA component 12. The PCBA component 12 is provided with a photoelectric sensor 14. The photoelectric sensor 14 is buckled on the grating teeth 7. A plurality of tooth-shaped grooves 15 are arranged in an array on the mounting seat. The plurality of tooth-shaped grooves 15 are adjustably in contact with the bumps 10 respectively.

[0034] The pressing mechanism 4 includes a switch 16, a pressing column 18, and an elastically deformable pressing element 17. The pressing column 18 is fixed on the base 1. The switch 16 is installed at the bottom of the PCBA component 12 and is located directly above the pressing column 18. The switch 16 is electrically connected to the PCBA component 12. The pressing element 17 is installed between the base 1 and the mounting seat and is sleeved outside the pressing column 18. The housing 2 drives the mounting seat and the PCBA component 12 to move axially relative to the base 1. The switch 16 can contact or separate from the upper end of the pressing column 18 as the housing 2 is pressed down.

[0035] The mounting seat includes a lower cover 22 and a bracket 13. The bracket 13 and the lower cover 22 are fixed by screws. The lower cover 22 is movably connected to the base 1. The display component 11 and the PCBA component 12 are respectively installed on the bracket 13. A plurality of tooth-shaped grooves 15 are integrally formed on an outer side wall of the lower cover 22.

[0036] The lower cover 22 is provided with a plurality of guide posts 23 and a plurality of hooks 36. The base 1 is provided with guide holes 24 that cooperate with the plurality of guide posts 23. The plurality of guide posts 23 are correspondingly inserted into the plurality of guide holes 24. The base 1 is provided with locking holes 30 that cooperate with the plurality of hooks 36. The hooks 36 pass through the locking holes 30 and are connected to the lower surface of the base 1 to prevent the mounting seat and the housing 2 from completely detaching from the base 1.

[0037] The bracket 13 is integrally formed with a support platform 25. The support platform 25 is provided with a positioning post 26 and a fixing post 28. The display component 11 and the PCBA component 12 are both provided with a positioning hole 27 that cooperates with the positioning post 26 and a fixing hole 29 that cooperates with the fixing post 28. The positioning post 26 is correspondingly inserted into the positioning hole 27, and the fixing post 28 is correspondingly passed through the fixing hole 29. The fixing post 28 locks the PCBA component 12 and the display component 11 on the support platform 25 in sequence through screws.

[0038] The display component 11 includes a lamp cover 19 and a diaphragm 20. The lamp cover 19 is electrically connected to the PCBA component 12, and the diaphragm 20 is fixed to the surface of the lamp cover 19 by adhesive or screws.

[0039] The housing 2 is provided with a cover plate 21, and the cover plate 21 is fixed to the upper end surface of the housing 2 by double-sided tape 35.

[0040] A rubber pad 31 is provided between the base 1 and an externally connected cooking range, and the base 1 and the cooking range are fixed by screws.

[0041] Embodiment 3: A rotary shift knob switch, including a base 1, a housing 2, a shift mechanism, and a pressing mechanism 4. The housing 2 is rotatably covered on the base 1. The housing 2 is provided with an installation cavity 5. The inner side of the housing 2 is provided with a stepped portion 6 protruding into the installation cavity 5. The stepped portion 6 is provided with a plurality of grating teeth 7 arranged in an array. At least one set of axially symmetric installation grooves 8 are provided on the inner side wall of the stepped portion 6. Elastic pieces 9 are arranged in the installation grooves 8. The elastic pieces 9 are provided with bumps 10 protruding in the axial direction of the housing 2. The shift mechanism and the pressing mechanism 4 are respectively installed in the housing 2. The shift mechanism includes a display component 11, a PCBA component 12, and a mounting seat arranged between the base 1 and the housing 2. The display component 11 and the PCBA component 12 are respectively installed on the mounting seat. The display component 11 is electrically connected to the PCBA component 12. The PCBA component 12 is provided with a photoelectric sensor 14, and the photoelectric sensor 14 is buckled on the grating teeth 7. A plurality of tooth-shaped grooves 15 arranged in an array are provided on the mounting seat, and the plurality of tooth-shaped grooves 15 are respectively adjustably in contact with the bumps 10.

[0042] The pressing mechanism 4 includes a switch 16, a pressing post 18, and an elastically deformable pressing element 17. The pressing post 18 is fixed on the base 1. The switch 16 is installed at the bottom of the PCBA component 12 and is located directly above the pressing post 18. The switch 16 is electrically connected to the PCBA component 12. The pressing element 17 is installed between the base 1 and the mounting seat and is sleeved outside the pressing post 18. The housing 2 drives the mounting seat and the PCBA component 12 to move axially relative to the base 1, and the switch 16 can contact or separate from the upper end of the pressing post 18 as the housing 2 is pressed down.

[0043] The mounting base includes a lower cover 22 and a bracket 13. The bracket 13 is fixed to the lower cover 22 by screws. The lower cover 22 is movably connected to the base 1. The display component 11 and the PCBA component 12 are respectively mounted on the bracket 13. A plurality of tooth-shaped grooves 15 are integrally formed on the outer sidewall of the bracket 13.

[0044] The lower cover 22 is provided with a plurality of guide posts 23 and a plurality of hooks 36. The base 1 is provided with guide holes 24 that cooperate with the plurality of guide posts 23. The plurality of guide posts 23 are correspondingly inserted into the plurality of guide holes 24. The base 1 is provided with locking holes 30 that cooperate with the plurality of hooks 36. The hooks 36 pass through the locking holes 30 and are connected to the lower surface of the base 1 to prevent the mounting base and the housing 2 from completely detaching from the base 1.

[0045] The bracket 13 is integrally provided with a support platform 25. The support platform 25 is provided with positioning posts 26 and fixing posts 28. Both the display component 11 and the PCBA component 12 are provided with positioning holes 27 that cooperate with the positioning posts 26 and fixing holes 29 that cooperate with the fixing posts 28. The positioning posts 26 are correspondingly inserted into the positioning holes 27. The fixing posts 28 are correspondingly passed through the fixing holes 29. The fixing posts 28 lock the PCBA component 12 and the display component 11 to the support platform 25 in sequence by screws.

[0046] The display component 11 includes a lamp cover 19 and a diaphragm 20. The lamp cover 19 is electrically connected to the PCBA component 12. The diaphragm 20 is fixed to the surface of the lamp cover 19 by adhesive or screws.

[0047] The housing 2 is provided with a cover plate 21. The cover plate 21 is fixed to the upper end surface of the housing 2 by double-sided tape 35.

[0048] The base 1 is fixed to the cooking range by screws.

[0049] Embodiment 4. A rotary shift knob switch includes a base 1, a housing 2, a shift mechanism, and a pressing mechanism 4. The housing 2 is rotatably covered on the base 1. The housing 2 is provided with an installation cavity 5. The inner side of the housing 2 is provided with a stepped portion 6 protruding into the installation cavity 5. The stepped portion 6 is provided with a plurality of grating teeth 7 arranged in an array. At least one set of axially symmetric installation grooves 8 are provided on the inner side wall of the stepped portion 6. Elastic pieces 9 are arranged in the installation grooves 8. The elastic pieces 9 are provided with bumps 10 protruding in the direction of the axis of the housing 2. The shift mechanism and the pressing mechanism 4 are respectively installed in the housing 2. The shift mechanism includes a display component 11, a PCBA component 12, and a mounting seat arranged between the base 1 and the housing 2. The display component 11 and the PCBA component 12 are respectively installed on the mounting seat. The display component 11 is electrically connected to the PCBA component 12. The PCBA component 12 is provided with a photoelectric sensor 14. The photoelectric sensor 14 is buckled on the grating teeth 7. A plurality of tooth-shaped grooves 15 are arranged in an array on the mounting seat. The plurality of tooth-shaped grooves 15 are adjustably in contact with the bumps 10 respectively.

[0050] The pressing mechanism 4 includes a switch 16, a pressing column 18, and an elastically deformable pressing element 17. The pressing column 18 is fixed on the base 1. The switch 16 is installed at the bottom of the PCBA component 12 and is located directly above the pressing column 18. The switch 16 is electrically connected to the PCBA component 12. The pressing element 17 is installed between the base 1 and the mounting seat and is sleeved outside the pressing column 18. The housing 2 drives the mounting seat and the PCBA component 12 to move axially relative to the base 1. The switch 16 can contact or separate from the upper end of the pressing column 18 as the housing 2 is pressed down.

[0051] The mounting seat includes a lower cover 22 and a bracket 13. The bracket 13 and the lower cover 22 are fixed by screws. The lower cover 22 is movably connected to the base 1. The display component 11 and the PCBA component 12 are respectively installed on the bracket 13. A plurality of tooth-shaped grooves 15 are integrally formed on the outer side wall of the bracket 13.

[0052] The lower cover 22 is provided with a plurality of guide posts 23 and a plurality of hooks 36. The base 1 is provided with guide holes 24 that cooperate with the plurality of guide posts 23. The plurality of guide posts 23 are correspondingly inserted into the plurality of guide holes 24. The base 1 is provided with locking holes 30 that cooperate with the plurality of hooks 36. The hooks 36 pass through the locking holes 30 and are connected to the lower surface of the base 1 to prevent the mounting seat and the housing 2 from completely separating from the base 1.

[0053] The bracket 13 is integrally formed with a support platform 25. The support platform 25 is provided with a positioning post 26 and a fixing post 28. The display component 11 and the PCBA component 12 are both provided with a positioning hole 27 that cooperates with the positioning post 26 and a fixing hole 29 that cooperates with the fixing post 28. The positioning post 26 is correspondingly inserted into the positioning hole 27, and the fixing post 28 is correspondingly inserted through the fixing hole 29. The fixing post 28 locks the PCBA component 12 and the display component 11 onto the support platform 25 in sequence through screws.

[0054] The display component 11 includes a lamp cover 19 and a diaphragm 20. The lamp cover 19 is electrically connected to the PCBA component 12, and the diaphragm 20 is fixed to the surface of the lamp cover 19 by adhesive or screws.

[0055] The housing 2 is provided with an installation sleeve 32. Inside the housing 2, there is a clamping block 33. The installation sleeve 32 is provided with a clamping hole 34. The installation sleeve 32 is clamped with the clamping block 33 through the clamping hole 34 and fixed to the upper end surface of the housing 2 by double-sided tape 35. The cover plate 21 is fixed to the installation sleeve 32 by double-sided tape 35.

[0056] A rubber pad 31 is provided between the base 1 and an external cooking stove, and the base 1 and the cooking stove are fixed by screws.

[0057] During the rotation operation, the base 1 is fixed to the cooking stove by screwing and does not move. The gear is adjusted by rotating the housing 2. When the housing 2 is rotated, the grating teeth 7 on the step portion 6 of the housing 2 will pass through the photoelectric sensor 14 on the PCBA component 12 one by one in the rotating state, thereby generating signals to achieve the encoding function, and the numbers displayed on the display component 11 will change accordingly. During the rotation process, the two elastic pieces 9 symmetrically installed in the housing 2 maintain force balance. Among them, in the first and second embodiments, the convex point 10 of the elastic piece 9 is in contact and cooperation with the tooth-shaped groove 15 provided on the outer side wall of the lower cover 22. The lower cover 22 is fixed and does not move. When the housing 2 is rotated, the housing 2 drives the elastic piece 9 to elastically deform and slide relative to the tooth-shaped groove 15 on the lower cover 22 to achieve the sense of rotation gear. Among them, in the third and fourth embodiments, the convex point 10 of the elastic piece 9 is in contact and cooperation with the tooth-shaped groove 15 provided on the outer side wall of the bracket 13. The lower cover 22 and the bracket 13 are fixed and do not move. When the housing 2 is rotated, the housing 2 drives the elastic piece 9 to elastically deform and slide relative to the tooth-shaped groove 15 on the bracket 13 to achieve the sense of rotation gear.

[0058] During the pressing operation, the product base 1 remains fixed to the stove top by screws. The outer shell 2, the shifting mechanism, and the pressing mechanism 4 form an integral pressing part. By pressing the cover plate 21 on the end face of the outer shell 2 or directly pressing down the outer shell 2, under the guiding action of the guide post 23, the outer shell 2 drives the mounting base to move downward. The lower cover 22 compresses the silicone pressing element 17, generating a pressing feel. At the same time, the PCBA assembly 12 moves downward, and the switch 16 provided on the PCBA assembly 12 contacts the pressing post 18 of the base 1, and the switch 16 is triggered to conduct, completing the output of the pressing signal.

[0059] The above are only the preferred embodiments of the present invention, and do not impose any restrictions on the technical scope of the present invention. Those skilled in the art, inspired by this technical solution, can make some deformations and modifications. Any modifications, equivalent changes, and decorations made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A rotary shift knob switch, characterized in that: It includes a base, a housing, a shifting mechanism and a pressing mechanism. The housing is rotatably covered on the base. The housing is provided with an installation cavity. A stepped portion protruding into the installation cavity is provided on the inner side of the housing. The stepped portion is provided with a plurality of grating teeth arranged in an array. At least one set of axially symmetric installation grooves are provided on the inner side wall of the stepped portion. Elastic pieces are arranged in the installation grooves. The elastic pieces are provided with bumps protruding in the direction of the axis of the housing. The shifting mechanism and the pressing mechanism are respectively installed in the housing. The shifting mechanism includes a display component, a PCBA component and a mounting seat arranged between the base and the housing. The display component and the PCBA component are respectively installed on the mounting seat. The display component is electrically connected to the PCBA component. The PCBA component is provided with a photoelectric sensor. The photoelectric sensor is buckled on the grating teeth. A plurality of tooth-shaped grooves arranged in an array are provided on the mounting seat. A plurality of the tooth-shaped grooves are respectively and adjustably in contact with the bumps.

2. The rotary shift knob switch according to claim 1, characterized in that: The pressing mechanism includes a switch, a pressing column and an elastically deformable pressing element. The pressing column is fixed on the base. The switch is installed at the bottom of the PCBA component and directly above the pressing column. The switch is electrically connected to the PCBA component. The pressing element is installed between the base and the mounting seat and sleeved outside the pressing column. The housing drives the mounting seat and the PCBA component to move axially relative to the base. The switch can contact or separate from the upper end of the pressing column as the housing is pressed down.

3. The rotary shift knob switch according to claim 2, wherein: The mounting seat includes a lower cover and a bracket. The bracket and the lower cover are fixed by screws. The lower cover is movably connected to the base. The display component and the PCBA component are respectively installed on the bracket. A plurality of the tooth-shaped grooves are integrally formed on the outer side wall of the lower cover.

4. The rotary shift knob switch according to claim 2, characterized in that: The mounting seat includes a lower cover and a bracket. The bracket and the lower cover are fixed by screws. The lower cover is movably connected to the base. The display component and the PCBA component are respectively installed on the bracket. A plurality of the tooth-shaped grooves are integrally formed on the outer side wall of the bracket.

5. The rotary shift knob switch according to claim 3 or 4, characterized in that: The lower cover is provided with a plurality of guide posts and a plurality of hooks. The base is provided with guide holes matching the plurality of guide posts. The plurality of guide posts are correspondingly inserted into the plurality of guide holes. The base is provided with locking holes matching the plurality of hooks. The hooks pass through the locking holes and are connected to the lower surface of the base to prevent the mounting seat and the housing from completely separating from the base.

6. The rotary shift knob switch according to claim 5, wherein: The bracket is integrally provided with a support platform. The support platform is provided with positioning posts and fixing posts. The display component and the PCBA component are both provided with positioning holes matching the positioning posts and fixing holes matching the fixing posts. The positioning posts are correspondingly inserted into the positioning holes. The fixing posts are correspondingly inserted through the fixing holes. The fixing posts lock the PCBA component and the display component to the support platform in sequence by screws.

7. The rotary shift knob switch according to claim 1, characterized in that: The display component includes a lamp cover and a membrane. The lamp cover is electrically connected to the PCBA component. The membrane is attached and fixed to the surface of the lamp cover by adhesive or screws.

8. The rotary shift knob switch according to claim 1, characterized in that: The housing is provided with a cover plate, and the cover plate is fixed to the upper end face of the housing by double-sided tape.

9. The rotary shift knob switch according to claim 8, wherein: The housing is provided with a mounting sleeve. There is a clamping block inside the housing. The mounting sleeve is provided with a clamping hole. The mounting sleeve is clamped with the clamping block through the clamping hole and fixed to the upper end face of the housing by double-sided tape. The cover plate is fixed to the mounting sleeve by double-sided tape.

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