CN219203035U - Magnetic knob assembly - Google Patents
Magnetic knob assembly Download PDFInfo
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- CN219203035U CN219203035U CN202320166346.3U CN202320166346U CN219203035U CN 219203035 U CN219203035 U CN 219203035U CN 202320166346 U CN202320166346 U CN 202320166346U CN 219203035 U CN219203035 U CN 219203035U
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- knob
- permanent magnet
- base
- magnetic
- circuit board
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Abstract
The utility model discloses a magnetic knob assembly, which comprises a magnetic knob part and an inductive switch part, wherein the magnetic knob part comprises a knob and a first permanent magnet, and the first permanent magnet is arranged in the knob; the inductive switch part comprises a base, a circuit board assembly and a second permanent magnet, wherein the upper end face of the base is provided with a concave area which is concave downwards, the magnetic knob part is accommodated in the concave area and can freely rotate in the concave area, the circuit board assembly and the second permanent magnet are arranged inside the base, and the second permanent magnet is arranged corresponding to the first permanent magnet and can be adsorbed by the first permanent magnet. The magnetic knob part is accommodated in the concave area of the base, so that the magnetic knob part and the induction switch part form an integral structure, and the integral structure can be placed at any position for adjusting the fire power of the kitchen range.
Description
Technical Field
The utility model relates to the technical field of kitchen appliances, in particular to a magnetic knob assembly.
Background
The wireless magnetic knob assembly in the prior art comprises a magnetic knob part and an inductive switch part, wherein the magnetic knob part and the inductive switch part are separated, the magnetic knob part is positioned on an operation panel of the kitchen range, and the inductive switch part is arranged below the operation panel of the kitchen range. The user performs fire power opening and closing and fire power adjustment by rotating the magnetic knob portion.
The magnetic knob part comprises a positioning magnet and an induction magnet, the induction switch part comprises an adsorption magnet and a circuit board assembly which are fixed below an operation panel of the kitchen range, and the positioning of the magnetic knob part on the operation panel is realized through the adsorption between the positioning magnet and the adsorption magnet. The circuit board assembly is provided with the Hall sensor, and when the magnetic knob part rotates, the induction magnet can be induced by the Hall sensor when passing over the Hall sensor, so that a corresponding rotating signal of the magnetic knob part is output.
The company provides a folding stove with a brand new shape, and has the characteristics of small occupied space, simplicity, easiness in cleaning and the like. However, the operation panel cannot be arranged because the traditional cooker main body is not provided, so that the traditional installation of the induction switch part of the magnetic knob assembly cannot be realized.
Disclosure of Invention
The utility model aims to overcome the defect that an induction switch part of a magnetic knob assembly cannot be installed because an operation panel is not arranged on a folding stove in the prior art.
The utility model solves the technical problems by the following technical scheme:
a magnetic knob assembly includes a magnetic knob portion and an inductive switch portion,
the magnetic knob part comprises a knob and a first permanent magnet, and the first permanent magnet is arranged inside the knob;
the inductive switch part comprises a base, a circuit board assembly and a second permanent magnet, wherein the upper end face of the base is provided with a concave area which is concave downwards, the magnetic knob part is accommodated in the concave area and can rotate freely in the concave area, the circuit board assembly and the second permanent magnet are arranged inside the base, and the second permanent magnet is arranged corresponding to the first permanent magnet and can be adsorbed by the first permanent magnet.
In this scheme, inductive switch part increases the structure of base, and inductive switch part's other structures are installed inside the base, and magnetic knob part directly holds in the sunk area of base, consequently makes magnetic knob part and inductive switch part form an overall structure, can place in optional position to be used for the regulation to cooking utensils firepower.
Preferably, the knob top is higher than the base top.
In this scheme, avoid producing the hindrance when carrying out the rotation operation to the knob, influence the feel.
Preferably, the base comprises a base body, a partition part extending along a radial plane of the base body is arranged in the base body, the partition part divides a cavity formed by the inner side of the base body in a surrounding manner into a first part and a second part along the height direction of the base body, the first part is the concave area, and the circuit board assembly and the second permanent magnet are both arranged in the second part.
In this scheme, separate the circuit board assembly and the second permanent magnet of magnetism knob part and inductive switch part through the partition portion, the installation of magnetism knob part of being convenient for also is convenient for the installation of circuit board assembly and second permanent magnet simultaneously.
Preferably, the first permanent magnet is located at the radial center of the knob, the second permanent magnet is located at the radial center of the base, a through hole is formed in the radial middle of the circuit board assembly, and the second permanent magnet is located at the radial inner side of the through hole.
In this scheme, the knob is fixed with the base through the absorption effect of two permanent magnets of its center department realization two relatively, and fixed effect is better to because the second permanent magnet in the base is located the through-hole inboard of circuit board assembly, can not cause because the problem that the second permanent magnet and circuit board assembly adopt to arrange from top to bottom and lead to the increase of base height.
Preferably, the circuit board assembly further comprises a light emitting part, a light transmission path is arranged in the knob, the separation part is made of transparent materials, and after the light emitted by the light emitting part is transmitted through the separation part, the light is guided to a part of the outer surface of the knob to be transmitted through the light transmission path.
In this scheme, the light that the light-emitting component sent is outside through the light transmission route transmission knob, forms the printing opacity effect in the part of knob surface, improves interactive effect and technological sense.
Preferably, a light scattering gap is arranged between the circuit board assembly and the partition part.
In this scheme, partition portion, circuit board assembly and base inside wall form a inclosed cavity, and the light that the light-emitting component penetrated can fully distribute out in this cavity, improves light transmission intensity.
Preferably, the bottom surface of the magnetic knob part comprises a knob central contact area and a knob peripheral non-contact area, the bottom surface of the concave area comprises a base central contact area and a base peripheral non-contact area, the knob central contact area is in contact with the base central contact area, and the knob peripheral non-contact area is arranged at intervals with the base peripheral non-contact area.
In this scheme, the bottom surface of magnetic knob part and the bottom surface of sunk area are not all contact, therefore the magnetic knob part is more smooth when rotatory.
Preferably, a plurality of third permanent magnets are further arranged in the knob, and the plurality of third permanent magnets are distributed in an annular array;
the circuit board assembly is provided with an induction unit;
when the knob is rotated, the relative running path of the third permanent magnet falls into the sensing range of the sensing unit to be sensed by the sensing unit.
In this scheme, the rotation information of the rotation is determined by the induction of the third permanent magnet by the induction unit.
Preferably, the sensing unit includes at least one pair of sensing elements, each pair of sensing elements includes two hall sensors, and when the third permanent magnet is located at a position between the two hall sensors in the pair of sensing elements, the two hall sensors both sense the third permanent magnet and send out sensing signals.
In this scheme, realize the response to third permanent magnet position through two hall sensor, for adopting a hall sensor among the prior art, the testing result is more accurate.
Preferably, the third permanent magnet is identical to the opposite poles of the second permanent magnet.
In the scheme, when the magnetic knob part is installed in the concave area, the first permanent magnet is attracted with the second permanent magnet, and the third permanent magnet is repelled with the second permanent magnet, so that the magnetic knob part can be rapidly and accurately positioned in the concave area.
The utility model has the positive progress effects that:
the magnetic knob part is accommodated in the concave area of the base, so that the magnetic knob part and the induction switch part form an integral structure, and the integral structure can be placed at any position for adjusting the fire power of the kitchen range.
Drawings
Fig. 1 is a perspective view of a magnetic knob assembly according to an embodiment of the present utility model.
Fig. 2 is an exploded view of the magnetic knob portion of fig. 1.
Fig. 3 is an exploded view of the inductive switch portion of fig. 1.
Fig. 4 is an axial cross-sectional view of a magnetic knob assembly according to an embodiment of the utility model.
Reference numerals illustrate:
Annular light-transmitting portion 1110
First reflexive cone 1121
Second reflexive cone 1122
First permanent magnet 113
Third permanent magnet 114
The sensing unit 1221
Light emitting member 1222
Second permanent magnet 123
Detailed Description
The utility model is further illustrated by means of the following examples, which are not intended to limit the scope of the utility model.
As shown in fig. 1, the present embodiment provides a magnetic knob assembly 100, and the magnetic knob assembly 100 mainly includes two structures, namely a magnetic knob portion 110 and an inductive switch portion 120.
The structure of the magnetic knob portion 110 is shown in connection with fig. 2 and 4, and includes a knob, and a first permanent magnet 113, a third permanent magnet 114, a mounting frame 115, and a refractive element 112 disposed inside the knob.
The knob comprises a knob main body 116 and a knob panel 111, wherein the knob main body 116 is of a flat cylindrical shell structure with two open ends, and the knob panel 111 covers the top of the knob main body 116. The knob panel 111 has an annular transparent portion 1110 for transmitting light.
The first permanent magnet 113 and the third permanent magnet 114 are both cylindrical magnets.
The first permanent magnet 113 is one, the third permanent magnet 114 is located outside the first permanent magnet 113, the third permanent magnet 114 is a plurality of, and the plurality of third permanent magnets 114 are distributed in an annular array.
The mounting frame 115 is used for mounting a plurality of third permanent magnets 114, the mounting frame 115 is approximately in an annular structure, the mounting frame 115 comprises an outer ring and an inner ring, a circle of circularly arranged cylindrical mounting grooves are formed between the outer ring and the inner ring, and each third permanent magnet 114 is correspondingly mounted in each cylindrical mounting groove one by one.
The refractive element 112 is a transparent structure, which is a conical shell structure with a certain thickness, and the refractive element 112 is arranged concentrically with the knob. The radially outer and radially inner surfaces of the refractive element 112 are each coated with a reflective coating for refracting light. The refractive element 112 is recessed downward at the center of the radially inner surface thereof to form a cylindrical center hole in which the first permanent magnet 113 is accommodated. The radially outer surface of the refractive element 112 is recessed upward to form a ring-shaped step in which the mount 115 is fitted.
The radially inner surface of the refractive element 112 has a first reflexive tapered surface 1121, and the radially outer surface of the refractive element 112 has a second reflexive tapered surface 1122, the first reflexive tapered surface 1121 being located radially inward of the second reflexive tapered surface 1122. The lower end surface of the refractive element 112 includes a light incident end, and the upper end surface of the refractive element 112 includes a light emitting end.
The refraction element 112 and the annular light-transmitting portion 1110 together form a light-transmitting path for light below the magnetic knob portion 110 to pass through above the magnetic knob portion 110. When light is incident from the light incident end of the refractive element 112, the light is refracted by the first reflective cone 1121 and the second reflective cone 1122 sequentially, and then is emitted from the light incident end of the refractive element 112 vertically upwards, and is emitted through the annular light-transmitting portion 1110 on the knob panel 111, so that a circle of light-emitting effect is formed on the knob panel 111, and the interaction effect and the technological sense are improved.
The structure of the inductive switch portion 120 is shown in conjunction with fig. 3 and 4, and includes a base, a circuit board assembly 122 and a second permanent magnet 123, where the circuit board assembly 122 and the second permanent magnet 123 are disposed inside the base. The base comprises a base body 121 and a base pressing plate 124, the base body 121 is of a flat cylindrical shell structure, a partition 1211 extending along a radial plane of the base is arranged in the base body 121, the partition 1211 is made of transparent PC material, the base body 121 is made of PC/ABS black opaque material, and the integral structure of the base body 121 and the partition 1211 is formed by double-shot molding. The partition 1211 partitions a cavity formed around the inner side of the base body 121 into a first portion and a second portion in the height direction of the base.
The first portion makes the upper end surface of the base body 121 form a concave area concave downward, the magnetic knob portion 110 is accommodated in the concave area and can rotate freely in the concave area, and after the magnetic knob portion 110 is accommodated in the concave area, the top of the knob is higher than the top of the base, so that the outer side of the knob is convenient to pinch to rotate the knob.
The circuit board assembly 122 and the second permanent magnet 123 are both disposed in the second portion, and the base pressing plate 124 is sealed and attached to the bottom of the second portion, so that the surface of the base pressing plate 124 is flush with the bottom surface of the base body 121. The base pressing plate 124 adopts black glue-pouring resin, and is used for fixing the circuit board assembly 122 and the magnet second permanent magnet 123 after glue-pouring solidification, and meanwhile, the base pressing plate plays a role in water resistance, and the working safety of the circuit board assembly 122 in the second part is ensured.
The wiring board assembly 122 is provided with a light 1222 and a sensing unit 1221.
The light emitting member 1222 is configured to emit light, and the light is transmitted through the partition 1211 and then is transmitted through the light transmission path of the magnetic knob portion 110. The light emitting member 1222 is a circle of annularly arranged LED beads, and the circle of LED beads is located right below the light incident end of the refractive element 112.
The sensing unit 1221 is configured to receive the magnetic signal of the third permanent magnet 114, and when the knob is rotated, the relative running path of the third permanent magnet 114 falls within the sensing range of the sensing unit 1221 to be sensed by the same. The sensing unit 1221 includes at least one pair of sensing elements, each pair of sensing elements including two hall sensors, each sensing the third permanent magnet 114 and emitting a sensing signal when the third permanent magnet 114 is located at a position between the two hall sensors of the pair of sensing elements. The sensing elements may be one or more pairs, and in theory, the sensing of the third permanent magnet 114 may be achieved by using one pair of sensing elements, and the missing detection may be prevented by using multiple pairs, and in this embodiment, two pairs of sensing elements, that is, a total of four hall sensors, are used. The mode of the Hall sensor in the prior art for sensing the permanent magnet is that when the permanent magnet passes over one Hall sensor, the Hall sensor senses the permanent magnet to send out a sensing signal, and the sensing of the position of the third permanent magnet 114 is realized through two Hall sensors in the utility model, compared with the mode of adopting one Hall sensor in the prior art, the detection result is more accurate.
There are various arrangements of the second permanent magnet 123 and the wiring board assembly 122 in the base height direction: in the first arrangement, the second permanent magnet 123 is above and below the circuit board assembly 122; in the second arrangement, the second permanent magnet 123 is below and the circuit board assembly 122 is above; in the third arrangement, a circular through hole is formed in the radial center of the circuit board assembly 122, and the second permanent magnet 123 is located inside the through hole. Obviously, in the first mode, the light emitting element 1222 on the circuit board assembly 122 is farther from the top of the knob, which affects the light transmission intensity, and the hall sensor on the circuit board assembly 122 is farther from the third permanent magnet 114, which also affects the induction to the third permanent magnet 114; in the second manner, the circuit board assembly 122 may affect the adsorption effect between the second permanent magnet 123 and the first permanent magnet 113. And both of the above methods result in a higher thickness of the base, so that the third arrangement is a more preferable option. In actual installation, the second permanent magnet 123 and the circuit board assembly 122 are installed as follows: the partition 1211 extends downward to form a cylindrical mounting groove with an opening at a lower portion, in which the second permanent magnet 123 is mounted, and a circular center hole is formed in the middle of the circuit board assembly 122, and the cylindrical mounting groove is located in the circular center hole of the circuit board assembly 122.
In order to avoid inaccurate installation of the magnetic knob portion 110 caused by the adsorption of the third permanent magnet 114 and the second permanent magnet 123 during the installation of the magnetic knob portion 110 into the recessed area, in this embodiment, the opposite magnetic poles of the third permanent magnet 114 and the second permanent magnet 123 are the same, so that when the magnetic knob portion 110 is installed into the recessed area, since the first permanent magnet 113 attracts the second permanent magnet 123 and the third permanent magnet 114 repels the second permanent magnet 123, the magnetic knob portion 110 can be rapidly and accurately positioned in the recessed area.
In order to make the light emitted by the light emitting element 1222 fully diffuse and then enter the refractive element 112, in this embodiment, a light diffusing gap is formed between the circuit board assembly 122 and the bottom surface of the partition 1211, and a closed cavity is formed by the bottom surface of the partition 1211, the top surface of the circuit board assembly 122 and the inner side wall of the base body 121, and the light emitted by the light emitting element 1222 can fully diffuse in the cavity, so as to improve the light transmission intensity.
In order to make the rotation of the magnetic knob portion 110 in the recess region smoother and less laborious, in this embodiment, the bottom surface of the magnetic knob portion 110 is not completely contacted with the bottom surface of the recess region, specifically, the bottom surface of the magnetic knob portion 110 includes a knob central contact region and a knob peripheral non-contact region, the bottom surface of the recess region includes a base central contact region and a base peripheral non-contact region, the knob central contact region contacts with the base central contact region, and the knob peripheral non-contact region is spaced from the base peripheral non-contact region.
In one embodiment, the knob central contact area is the bottom surface of the refractive element 112, and the bottom surface of the refractive element 112 is a planar structure extending along the radial plane of the magnetic knob portion 110; the knob periphery non-contact area is the bottom surface of the mounting frame 115, the bottom surface of the mounting frame 115 is an arc surface with a tiny radian, and the distance between the bottom surface of the mounting frame 115 and the bottom surface of the concave area gradually increases outwards along the radial direction of the concave area; the bottom surface of the concave region is a planar structure extending along the radial plane of the base portion, the central contact region of the base is the portion of the bottom surface of the concave region facing the bottom surface of the refractive element 112, and the peripheral non-contact region of the base is the portion of the bottom surface of the concave region separated from the central contact region of the base.
In another embodiment, the knob central contact area is the bottom surface of the refractive element 112, the knob peripheral non-contact area is the bottom surface of the mounting frame 115, and the bottom surface of the refractive element 112 and the bottom surface of the mounting frame 115 are flush and each have a planar structure extending along the radial plane of the magnetic knob portion 110; the base center contact region is a portion of the bottom surface of the recessed region facing the bottom surface of the refractive element 112, and the portion is a planar structure extending along the radial plane of the base portion; the base peripheral non-contact area is a portion of the bottom surface of the recessed area facing the bottom surface of the mounting frame 115, the portion is an arc surface with a small arc, and the distance between the base peripheral non-contact area and the bottom surface of the mounting frame 115 gradually increases outwards along the radial direction of the recessed area.
The magnetic knob assembly 100 of the present utility model is applied to a magnetic induction cooker, particularly a folding cooker, and an operation panel cannot be provided because the magnetic knob assembly 100 does not have a conventional cooker main body, so that the induction switch portion 120 of the magnetic knob assembly 100 cannot be mounted below the operation panel of the cooker. In the utility model, the magnetic knob part 110 is directly accommodated in the concave area of the base, so that the magnetic knob part 110 and the induction switch part 120 form a whole structure, and can be placed at any position for adjusting the fire power of the kitchen range. Of course, the magnetic knob assembly 100 of the present utility model can also be used in a conventional magnetic induction cooking appliance to achieve the adjustment of the fire power of the magnetic induction cooking appliance.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (10)
1. A magnetic knob assembly comprises a magnetic knob part and an inductive switch part, and is characterized in that,
the magnetic knob part comprises a knob and a first permanent magnet, and the first permanent magnet is arranged inside the knob;
the inductive switch part comprises a base, a circuit board assembly and a second permanent magnet, wherein the upper end face of the base is provided with a concave area which is concave downwards, the magnetic knob part is accommodated in the concave area and can rotate freely in the concave area, the circuit board assembly and the second permanent magnet are arranged inside the base, and the second permanent magnet is arranged corresponding to the first permanent magnet and can be adsorbed by the first permanent magnet.
2. The magnetic knob assembly according to claim 1, wherein the knob top is higher than the base top.
3. The magnetic knob assembly according to claim 1, wherein the base comprises a base body having a partition therein extending along a radial plane of the base body, the partition dividing a cavity defined by an inner side of the base body along a height direction of the base body into a first portion and a second portion, the first portion being the recessed area, the wiring board assembly and the second permanent magnet being both disposed in the second portion.
4. The magnetic knob assembly according to claim 3, wherein the first permanent magnet is located at a radial center of the knob, the second permanent magnet is located at a radial center of the base, a through hole is formed in a radial middle portion of the circuit board assembly, and the second permanent magnet is located radially inward of the through hole.
5. The magnetic knob assembly according to claim 4, wherein the circuit board assembly further comprises a light emitting member, a light transmission path is provided in the knob, the partition is made of transparent material, and light emitted by the light emitting member is led out through the partition and then led out to a part of the outer surface of the knob through the light transmission path.
6. The magnetic knob assembly according to claim 5, wherein the wiring board assembly has an astigmatic gap between the spacer and the circuit board assembly.
7. The magnetic knob assembly according to claim 1 or 2, wherein the bottom surface of the magnetic knob portion comprises a knob central contact area and a knob peripheral non-contact area, the bottom surface of the recessed area comprises a base central contact area and a base peripheral non-contact area, the knob central contact area is in contact with the base central contact area, and the knob peripheral non-contact area is spaced apart from the base peripheral non-contact area.
8. The magnetic knob assembly of claim 2 wherein,
a plurality of third permanent magnets are arranged in the knob, and the third permanent magnets are distributed in an annular array;
the circuit board assembly is provided with an induction unit;
when the knob is rotated, the relative running path of the third permanent magnet falls into the sensing range of the sensing unit to be sensed by the sensing unit.
9. The magnetic knob assembly according to claim 8, wherein the sensing unit comprises at least one pair of sensing elements, each pair of sensing elements comprising two hall sensors, each of the two hall sensors sensing the third permanent magnet and emitting a sensing signal when the third permanent magnet is positioned between the two hall sensors of the pair of sensing elements.
10. The magnetic rotation knob assembly according to claim 8, wherein the third permanent magnet is identical to the opposing poles of the second permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320166346.3U CN219203035U (en) | 2023-01-16 | 2023-01-16 | Magnetic knob assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320166346.3U CN219203035U (en) | 2023-01-16 | 2023-01-16 | Magnetic knob assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219203035U true CN219203035U (en) | 2023-06-16 |
Family
ID=86713520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320166346.3U Active CN219203035U (en) | 2023-01-16 | 2023-01-16 | Magnetic knob assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219203035U (en) |
-
2023
- 2023-01-16 CN CN202320166346.3U patent/CN219203035U/en active Active
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