CN110597351B - Two discernment magnetism knobs that structure is succinct - Google Patents
Two discernment magnetism knobs that structure is succinct Download PDFInfo
- Publication number
- CN110597351B CN110597351B CN201910721004.1A CN201910721004A CN110597351B CN 110597351 B CN110597351 B CN 110597351B CN 201910721004 A CN201910721004 A CN 201910721004A CN 110597351 B CN110597351 B CN 110597351B
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- knob
- shell
- magnetic
- working area
- fixing piece
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/10—Details, e.g. of discs, knobs, wheels or handles
Abstract
The invention discloses a double-identification magnetic knob with a simple structure, which comprises: the knob, the shell, the knob control plate and the shell fixing piece are arranged on the shell; the shell is provided with a working area which is sunken downwards along the upper surface, and the knob is suspended in the working area and can rotate left and right by 360 degrees and can be pressed down; the knob control board is arranged below the shell, and a sensor unit for detecting the working state of the knob is arranged on the knob control board; the shell fixing piece is clamped on the outer side wall of the shell; the control structure of the magnetic knob is not in contact with the signal receiving device, physical friction caused by physical contact does not exist, the operation is accurate, the operation is stable, and the service life is long.
Description
Technical Field
The invention relates to the technical field of magnetic knobs, in particular to a double-identification magnetic knob with a simple structure.
Background
The traditional mechanical knob, the knob will usually contact with the main circuit board of the controller, including both the connection contact and the discontinuous contact, these two ways rely on "potentiometre" type, "encoder" type or "plectrum switch" type core component, the main drawback of this kind of knob is: carbon film of a potentiometer, contact pieces of an encoder and a toggle switch are easily abraded due to friction, so that poor contact or unstable signals are caused, the service life of the potentiometer is shortened, and the operation is unstable.
Some of general magnetic induction magnetic rotary buttons adsorb a rotary body on a working surface through an annular magnet, are attractive and easy to clean, but inevitably introduce two magnetic fields because two magnets are used for respectively acting on an adsorption function and a discrimination function, so that the hidden danger of interfering the accuracy of magnetic angle judgment exists, and the cost is increased. Other magnetic knobs only use the principle of magnetic field change to realize rotation identification, and no mechanism is arranged in the middle for adsorption or support, so that the hand feeling is poor, and the operation is easy to be excessive.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a dual-identification magnetic knob, aiming at solving at least one problem of low service life, inaccurate command identification, high cost or poor use experience of the knob in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a compact dual identification magnetic knob comprising: the knob, the shell, the knob control plate and the shell fixing piece are arranged on the shell; the shell is provided with a working area which is sunken downwards along the upper surface, and the knob is suspended in the working area and can rotate left and right by 360 degrees and can be pressed down; the knob control board is arranged below the shell, and a sensor unit for detecting the working state of the knob is arranged on the knob control board; the shell fixing piece is clamped on the outer side wall of the shell.
In the simple structure's two discernment magnetism knobs, the knob includes the knob body, sets up in the knob body, the first magnet and the second magnet that attract each other, the knob clamp plate of lid joint in the knob body lower extreme.
In the dual-identification magnetic knob with a simple structure, two positioning holes which are centrosymmetric are arranged on the knob pressing plate.
In the dual-identification magnetic knob with a simple structure, the knob further comprises a metal sheet fixed below the knob pressing plate.
In the two-recognition magnetic knob with a simple structure, the sensor unit comprises a magnetic-sensing angle sensor arranged at the center of the knob control plate, and the magnetic-sensing angle sensor is used for judging the working state of the knob.
In the two-recognition magnetic knob with a simple structure, the sensor unit further comprises a Hall sensor and an infrared sensor which are respectively arranged on two sides of the magnetic-sensing angle sensor.
In the dual-identification magnetic knob with a simple structure, the magnetic knob further comprises a spring which is arranged in the working area and is positioned below the knob.
In the two discernment magnetism knobs that the structure is succinct, be equipped with a plurality of fixture blocks on the lateral wall of shell, be equipped with on the inside wall of shell mounting with the draw-in groove that the fixture block matches one by one, the shell mounting passes through fixture block and draw-in groove with the shell joint.
In the dual-identification magnetic knob with a simple structure, the knob control panel is also provided with a plurality of light-emitting pieces, and the shell is made of transparent materials.
In the double-identification magnetic knob with a simple structure, a cavity is arranged at the lower part of the shell and faces upwards along the lower surface, the cavity corresponds to the working area, and the knob control plate is arranged in the cavity.
Has the advantages that:
the invention provides a double-identification magnetic knob with a simple structure, which improves the detection accuracy of the magnetic knob and avoids false triggering through double detection of a magnetic-sensitive angle sensor, a Hall sensor and an infrared sensor; the metal sheet is arranged at the lower end of the knob, and the knob is fixed on the transparent shell by utilizing the magnetic field force of the magnet and the metal sheet, so that the annular magnet for adsorption is reduced, and the influence of two magnetic fields on the accuracy of magnetic angle judgment is avoided; and the knob as the operation structure and the knob control plate as the signal receiving device are not contacted with each other and are relatively independent, so that the defect of physical friction caused by physical contact is overcome, the service life of the knob is prolonged, and the performance stability of the industry is ensured.
Drawings
Fig. 1 is an exploded view of the dual recognition knob with a compact structure provided by the present invention.
Fig. 2 is a front longitudinal sectional view of the dual-identification magnetic knob with a simple structure.
Fig. 3 is a schematic structural diagram of the dual-identification magnetic knob with a simple structure.
Fig. 4 is a sectional view taken along a-a' direction of fig. 3.
Fig. 5 is a sectional view taken along the direction B-B' of fig. 3.
Detailed Description
The invention provides a double-identification magnetic knob with a simple structure, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1-5, the present invention provides a dual-recognition magnetic knob with a compact structure, comprising: the rotary knob comprises a rotary knob 1, a shell 2, a rotary knob control plate 3 and a shell fixing piece 4; the shell 2 is provided with a working area 21 which is sunken downwards along the upper surface, and the knob 1 is suspended in the working area 21 and can rotate left and right by 360 degrees and can be pressed down; the knob control plate 3 is arranged below the shell 2, and a sensor unit 31 for detecting the working state of the knob is arranged on the knob control plate 3; the shell fixing piece 4 is clamped on the outer side wall of the shell 2. The knob of the magnetic knob is suspended in the working area and is not in contact with the knob control plate, so that the defect of physical friction caused by physical contact is overcome, and the service life of the knob is prolonged. The trigger of the knob is accurately detected through the sensor unit, and the false trigger can be avoided.
The knob 1 comprises a knob body 11, a first magnet 12 and a second magnet 13 which are arranged in the knob body 11 and mutually attracted, and a knob pressing plate 14 which is covered at the lower end of the knob body 11; and a metal sheet 15 fixed below the knob pressing plate 14. The knob is suspended in the working area through magnetic field force jointly generated by the first magnet, the second magnet and the metal sheet, so that the use of a ring magnet for generating adsorption is reduced; the magnetic field generated by the ring magnet is prevented from influencing the function of judging the operation of the knob of the sensor unit. The first magnet and the second magnet are arranged in parallel, and the arrangement directions of the two poles of the first magnet and the second magnet are opposite; in this embodiment, the first magnet has an S-pole facing downward, the second magnet has an N-pole facing downward, and the metal sheet is an iron shim, and can generate a strong magnetic force by cooperating with the first magnet and the second magnet. The knob pressing plate is connected to the lower portion of the knob body in a covering mode, so that the knob body forms a sealing structure, and the waterproof performance of the knob body is improved.
The knob pressing plate 14 is provided with two centrosymmetric positioning holes 141, which are respectively located at the edge of the knob pressing plate and used for fixing the knob pressing plate on the knob body through screws to prevent the knob pressing plate from being displaced to affect the tightness of the knob.
The sensor unit 31 includes a magnetic-sensing angle sensor 311 disposed at the center of the knob control board 3, and the magnetic-sensing angle sensor 311 is used for determining the working state of the knob 1. The magnetic angle sensor can detect the component of the magnetic field along the direction of X, Y, Z axis in the working area, thereby judging the angle of the left and right rotation of the knob or whether the pressing operation exists.
The sensor unit 31 further includes a hall sensor 312 and an infrared sensor 313 respectively disposed at both sides of the magneto-sensitive angle sensor 311. The Hall sensor can accurately judge whether a magnet exists in a working area, the infrared sensor can accurately judge whether an object exists in the working area, the Hall sensor and the infrared sensor can accurately judge whether the knob exists in the working area under the combined action, the situation that the knob is misjudged to leave the working area due to the change of an external magnetic field or other factors is avoided, the detection accuracy of the magnetic knob is improved, and the mistrigger is avoided.
The magnetic knob further comprises a spring 5 which is arranged in the working area and is positioned below the knob, and the spring 5 resets the pressing operation of the knob 1.
A plurality of clamping blocks 21 are arranged on the outer side wall of the shell 2, clamping grooves 41 which are matched with the clamping blocks 21 one by one are arranged on the inner side wall of the shell fixing piece 4, and the shell fixing piece 4 is clamped with the shell 2 through the clamping blocks 21 and the clamping grooves 41; when the magnetic knob is installed, the clamping blocks on the shell correspond to the clamping grooves in the inner side wall of the shell fixing piece one to one, the shell is fixedly sleeved outside the shell from bottom to top, the shell fixing piece is rotated to enable the clamping blocks and the clamping grooves to be completely matched, then the shell fixing piece is fixed with the shell, and the shell fixing piece is favorable for improving the sealing performance of the magnetic knob, so that the waterproof performance is improved. In this embodiment, the upper end of the housing is further provided with a flange 22, which can prevent water from penetrating from the connection between the housing and the housing fixing member to a certain extent.
The knob control panel 3 is further provided with a plurality of light emitting pieces 32, and the shell 2 is made of transparent materials, so that the user experience is improved.
The lower part of the shell 2 is provided with a cavity which faces upwards along the lower surface, the cavity corresponds to the working area 21, the knob control plate 3 is arranged in the cavity and is fixed on the shell through screws, on one hand, the moisture resistance of the knob control plate is improved, on the other hand, the installation space of the magnetic knob is reduced, and the structure of the magnetic knob is more compact. The partition between the cavity and the working area is made of a material which can be penetrated by infrared rays.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (7)
1. A compact dual-identification magnetic knob is characterized by comprising: the knob, the shell, the knob control plate and the shell fixing piece are arranged on the shell; the shell is provided with a working area which is sunken downwards along the upper surface, and the knob is suspended in the working area and can rotate left and right by 360 degrees and can be pressed down; the knob control board is arranged below the shell, and a sensor unit for detecting the working state of the knob is arranged on the knob control board; the shell fixing piece is clamped on the outer side wall of the shell; the knob comprises a knob body, a first magnet and a second magnet which are arranged in the knob body and mutually attracted, a knob pressing plate which is covered at the lower end of the knob body, and a metal sheet which is fixed below the knob pressing plate, wherein the metal sheet is an iron gasket; the magnetic knob further comprises a spring which is arranged in the working area and located below the knob, and the spring is used for resetting the pressing operation of the knob.
2. The compact dual-identification magnetic knob as claimed in claim 1, wherein the knob pressing plate has two centrally symmetrical positioning holes.
3. The dual recognition magnetic knob of claim 1, wherein the sensor unit comprises a magnetic angle sensor disposed at the center of the knob control board, and the magnetic angle sensor is used for determining the operating state of the knob.
4. The dual recognition magnetic knob of claim 3, wherein the sensor unit further comprises a Hall sensor and an infrared sensor respectively disposed at two sides of the magnetic angle sensor.
5. The dual-identification magnetic knob with a simple structure according to claim 1, wherein a plurality of clamping blocks are arranged on the outer side wall of the housing, clamping grooves matched with the clamping blocks one by one are arranged on the inner side wall of the housing fixing piece, and the housing fixing piece is clamped with the housing through the clamping blocks and the clamping grooves.
6. The compact dual identification magnetic knob of claim 1 wherein said knob control panel further comprises a plurality of light emitting elements, said housing being made of a transparent material.
7. The compact dual recognition magnetic knob of claim 1, wherein the lower portion of the housing is provided with a cavity facing upward along the lower surface, the cavity corresponding to the working area, and the knob control plate is disposed in the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721004.1A CN110597351B (en) | 2019-08-06 | 2019-08-06 | Two discernment magnetism knobs that structure is succinct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721004.1A CN110597351B (en) | 2019-08-06 | 2019-08-06 | Two discernment magnetism knobs that structure is succinct |
Publications (2)
| Publication Number | Publication Date |
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| CN110597351A CN110597351A (en) | 2019-12-20 |
| CN110597351B true CN110597351B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910721004.1A Active CN110597351B (en) | 2019-08-06 | 2019-08-06 | Two discernment magnetism knobs that structure is succinct |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111862809B (en) * | 2020-06-30 | 2022-07-12 | 上海中航光电子有限公司 | Display device and vehicle |
| CN215181638U (en) * | 2021-04-30 | 2021-12-14 | 深圳市启明云端科技有限公司 | Knob screen device |
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Effective date of registration: 20230323 Address after: 528511 Guangdong three Foshan Cangjiang Industrial Park, Ho Ming Street, Sanming Road Patentee after: FOSHAN GAOMING ANHUA CERAMIC SANITARY WARE Co.,Ltd. Patentee after: Wrigley Furniture Group Co.,Ltd. Address before: 528511 Guangdong three Foshan Cangjiang Industrial Park, Ho Ming Street, Sanming Road Patentee before: FOSHAN GAOMING ANHUA CERAMIC SANITARY WARE Co.,Ltd. |