CN110620575A - Touch knob switch - Google Patents
Touch knob switch Download PDFInfo
- Publication number
- CN110620575A CN110620575A CN201810637741.9A CN201810637741A CN110620575A CN 110620575 A CN110620575 A CN 110620575A CN 201810637741 A CN201810637741 A CN 201810637741A CN 110620575 A CN110620575 A CN 110620575A
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- CN
- China
- Prior art keywords
- knob
- panel
- metal body
- trigger
- induction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention discloses a touch knob switch, which belongs to the field of electric fittings and solves the problem of unreliable operation of the touch knob switch in the prior art, and the technical scheme for solving the problem mainly comprises a first knob and a sensing part, wherein the first knob is provided with a first triggering metal body, the sensing part comprises a plurality of first sensing electrodes, the first sensing electrodes are respectively and electrically connected with a micro control unit, the first knob rotates relative to a panel to enable the first triggering metal body to be aligned with different first sensing electrodes to trigger corresponding first sensing electrodes, the first knob is connected to the panel through a first revolute pair and is axially limited on the outer surface of the panel, and the sensing part is positioned inside or inside the panel. The invention is mainly used for touch rotating operation of electrical appliances.
Description
Technical Field
The invention relates to an electric appliance accessory, in particular to a touch knob switch.
Background
Knob switch is used because of its easy operation is swift in a lot of domestic appliance, but traditional knob switch need carry out electrical connection with the circuit board control panel, leads to the whole waterproof performance of electrical apparatus not good, and the inside mechanical structure of knob switch also can destroy, malfunction because of the wearing and tearing that use simultaneously, holistic life is also not good. For this reason, for example, patent 200920297818.9 discloses a control device for a household appliance, in which a touch knob device is used to replace a conventional mechanical knob switch, thereby solving the problems of water resistance of the appliance and wear of the knob switch, and specifically, a permanent magnet is mounted on a circuit board, and the knob device is fixed on a panel by the mutual attraction between a fixing part mounted on the knob device and the permanent magnet. In addition, the knob body is attracted and fixed by magnetic force, and the knob body is easy to drop and lose. When a plurality of knob devices are used, magnets between different knob bodies interact with each other, and as a result, the positions of the knob bodies are deviated, and the use of users is influenced.
Disclosure of Invention
The invention aims to provide a touch knob switch, which is reliable and effective for user operation.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a touch knob switch, includes first knob and response portion, first knob is equipped with first metal body that triggers, response portion includes a plurality of first induction electrodes, first induction electrode is connected with little the control unit electricity respectively, the relative panel rotation of first knob makes first metal body that triggers align with different first induction electrodes and triggers corresponding first induction electrode, first knob is connected in the surface of panel and axial spacing in the panel through first revolute pair, response portion is located the inside or the internal surface of panel.
Preferably, the first rotating pair comprises a first rotating shaft arranged on the first knob and a first connecting seat arranged on the outer surface of the panel, and the first connecting seat is connected with the first rotating shaft and limits the first rotating shaft.
As a further preferred scheme, the first connecting seat is provided with a first limiting step, and the first rotating shaft is provided with a first limiting protrusion which is matched with the first limiting step to realize axial limiting.
As a further preferred scheme, the first knob is provided with a first positioning body, the first positioning body rotates along with the first knob, the first connecting seat and/or the panel are provided with a plurality of first positioning protrusions, the first positioning protrusions are distributed in an annular shape, a first positioning groove for accommodating the first positioning body is formed between every two adjacent first positioning protrusions, and the first positioning body is located in the first positioning groove to enable the first trigger metal body to be aligned with the first sensing electrode.
Preferably, the touch knob switch further comprises a second knob, the second knob is connected to the panel through a second revolute pair and axially limited on the inner surface of the panel, and the second knob is provided with a second trigger metal body.
As a further preferable scheme, the second knob and the first knob rotate synchronously, and the second trigger metal body and the first trigger metal body trigger the same first induction electrode synchronously.
As a further preferable scheme, the second revolute pair comprises a second rotary shaft arranged on the second knob, the panel is provided with a through hole, and the first rotary shaft and the second rotary shaft are fixed into a whole so that the second knob and the first knob synchronously rotate; or the first knob is provided with a first magnet, the second knob is provided with a second magnet, and the first magnet and the second magnet attract each other to enable the second knob and the first knob to rotate synchronously.
As a further preferable scheme, the second knob and the first knob rotate independently, the second revolute pair includes a second rotary shaft disposed on the second knob and a second connecting seat disposed on the inner surface of the panel, and the second connecting seat is connected with the second rotary shaft and limits the second rotary shaft.
As a further preferable scheme, the second knob is provided with a second positioning body, the second positioning body rotates along with the second knob, the second connecting seat and/or the panel are provided with a plurality of second positioning protrusions, the second positioning protrusions are distributed annularly, a second positioning groove for accommodating the second positioning body is formed between every two adjacent second positioning protrusions, and the second positioning body is located in the second positioning groove to enable the second trigger metal body to be aligned with the sensing portion.
As a further preferable scheme, the sensing part includes a plurality of second sensing electrodes, the second sensing electrodes are electrically connected to the micro control unit, and the second knob rotates relative to the panel to align the second triggering metal body with different second sensing electrodes to trigger the corresponding second sensing electrodes.
As a still further preferable mode, the second sensing electrode and the first sensing electrode are staggered with each other;
or the second induction electrode and the first induction electrode are mutually shielded;
or the micro control unit processes the induction capacitance signal of the first induction electrode in the panel closing state and processes the induction capacitance signal of the second induction electrode in the panel opening state.
As a further preferable scheme, the second knob rotates relative to the panel to align the second trigger metal body with different first sensing electrodes to trigger the corresponding first sensing electrodes, a sensing capacitance signal generated by the alignment of the first sensing electrode with the first trigger metal body is C1, a sensing capacitance signal generated by the alignment of the first sensing electrode with the second trigger metal body is C2, a difference between C1 and C2 is greater than a detection sensitivity of the micro control unit, and the micro control unit processes C1 in a panel closed state and processes C2 in a panel open state;
or the second knob rotates relative to the panel to enable the second trigger metal body to align with different first induction electrodes to trigger the corresponding first induction electrodes, and the micro control unit processes induction capacitance signals of the first trigger metal body triggering the first induction electrodes in a panel closing state and processes induction capacitance signals of the second trigger metal body triggering the first induction electrodes in a panel opening state;
or the second knob rotates relative to the panel to enable the second trigger metal body to be aligned with different first induction electrodes to trigger corresponding first induction electrodes, and the position where the second trigger metal body triggers the first induction electrodes to stay is staggered with the position where the first trigger metal body triggers the first induction electrodes to stay.
After the technical scheme is adopted, the invention has the following advantages: the first rotating pair can form a motion matching relation for the rotation of the first knob, and the first knob is axially limited, so that the first knob can be effectively positioned, a user can accurately rotate the first knob to the position when rotating the first knob, and the accuracy and the reliability of the control of corresponding functions are realized. Because first knob is spacing by the axial, consequently at the in-process of user's rotatory first knob, the interval that first trigger metal body reaches first response electrode keeps stable, therefore response electrode triggers reliably, can not appear the condition that triggers by mistake or not trigger, ensures the validity of user's operation.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a first connecting block according to one embodiment;
FIG. 3 is a schematic view of a first rotary knob according to one embodiment;
FIG. 4 is a schematic structural diagram according to a second embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 6 is a schematic structural diagram according to a fourth embodiment of the present invention;
FIG. 7 is a schematic view of the shield plate added to FIG. 6;
fig. 8 is a schematic distribution diagram of first sensing electrodes in an eighth embodiment of the invention.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1, the present invention provides a touch knob switch, which includes a first knob 1 and a sensing portion, the touch knob switch is generally disposed on a panel 9 of an electrical appliance, the sensing portion is fixed on the panel 9 or inside the panel 9, the first knob 1 is mounted on the panel 9, the first knob 1 is provided with a first triggering metal body 11, the sensing portion includes a plurality of first sensing electrodes 2, the first sensing electrodes 2 are respectively electrically connected with a micro control unit, the first knob 1 rotates relative to the panel 9 to align the first triggering metal body 11 with different first sensing electrodes 2 to trigger the corresponding first sensing electrodes 2, in order to make the first knob 1 not easily lost, meanwhile, the user can not deviate during operation, and the rotating operation is ensured to be in place and reliable, so that the first knob 1 is connected to the panel 9 through the first revolute pair and is axially limited on the outer surface of the panel 9, and the sensing part is positioned inside or on the inner surface of the panel 9. The first revolute pair can form a motion fit relation for rotation of the first knob 1, meanwhile, the first knob 1 is axially limited, and the first knob 1 can be effectively positioned, so that a user can accurately rotate the first knob 1 to the position when rotating the first knob 1, and accuracy and reliability of control of corresponding functions are achieved. Because the first knob 1 is axially limited, in the process that a user rotates the first knob 1, the distance from the first trigger metal body 11 to the first induction electrode 2 is kept stable, so that the induction electrode is reliably triggered, the condition of false triggering or non-triggering can not occur, and the effectiveness of user operation is ensured.
In the present embodiment, the first rotating pair includes a first rotating shaft 12 disposed on the first knob 1 and a first connecting seat 92 disposed on the outer surface of the panel 9, and the first connecting seat 92 is connected to the first rotating shaft 12 and limits the first rotating shaft 12. Specifically, the first connecting seat 92 may be provided with a first limiting step 93, and the first rotating shaft 12 is provided with a first limiting protrusion 13 which is matched with the first limiting step 93 to realize axial limiting. The first limiting protrusion 13 may be provided in a segmented manner, or may be provided in an annular structure. Conversely, a central hole is arranged in the first rotating shaft 12, the first connecting seat 92 extends into the central hole, then a structure that the limiting bulge is matched with the limiting step can be adopted to form a revolute pair, and the first knob 1 is axially limited.
Referring to fig. 2, in order to enable a user to accurately rotate the first knob 1 for function selection, the first knob 1 may be provided with a first positioning body 14, the first positioning body 14 rotates along with the first knob 1, the first connecting seat 92 is provided with a plurality of first positioning protrusions 94, the first positioning protrusions 94 are distributed annularly, a first positioning groove for accommodating the first positioning body 14 is formed between two adjacent first positioning protrusions 94, and the first positioning body 14 is located in the first positioning groove to align the first trigger metal body 11 with the first sensing electrode 2. The first positioning protrusion 94 may be provided on the panel 9, or may be provided on both the first connecting seat 92 and the panel 9. In the present embodiment, the first positioning protrusions 94 are annularly distributed on a plane, and besides, the first positioning protrusions 94 may also be distributed along a circumferential surface, and so on. In order to facilitate the user to observe the specific position to which the first knob 1 is currently rotated, an indication arrow 10 may be provided on the first knob 1, and a function indication mark 90 may be correspondingly provided on the panel 9 around the first knob 1, when the indication arrow 10 is aligned with the corresponding function indication mark 90, it is indicated that the first knob 1 is currently in a position for triggering the corresponding function, and when the first retainer 14 enters the first positioning slot, the indication arrow 10 is aligned with one function indication mark 90. The first retainer 14 may be inserted into the first positioning groove at only one end (fig. 2) or may be inserted into the first positioning groove at both ends (fig. 3).
When a user rotates the first knob 1, the first triggering metal body 11 rotates along with the first knob, when the indication arrow 10 is aligned with one of the function indication marks 90, the first triggering metal body 11 is aligned with the first sensing electrode 2 corresponding to the current function indication mark 90, so that the first sensing electrode 2 is triggered, and corresponding function selection is realized.
The shape of the first knob 1 may be designed as desired, for example circular, oval, square, cross-shaped or star-shaped, etc. The first knob 1 is generally made of a non-conductive material, and is made of a common material such as plastic, wood, ceramic, etc.
Example two:
consider that some appliances have a panel 9 that is opened and closed, such as the cover of a pulsator washing machine. In order to enable a user to intuitively operate the touch knob switch in the open state and the closed state of the panel 9, the touch knob switch of the present embodiment is improved on the basis of the first embodiment, as shown in fig. 4, the touch knob switch further includes a second knob 3, the second knob 3 is connected to the panel 9 through a second revolute pair and is axially limited on the inner surface of the panel 9, and the second knob 3 is provided with a second trigger metal body 31.
In the present embodiment, the second knob 3 rotates synchronously with the first knob 1, and the second trigger metal body 31 and the first trigger metal body 11 synchronously trigger the same first sensing electrode 2. In order to make the second knob 3 rotate synchronously with the first knob 1, the second revolute pair includes a second rotary shaft 32 disposed on the second knob 3, the panel 9 is disposed with a through hole 99, and the first rotary shaft 12 and the second rotary shaft 32 are fixed together to make the second knob 3 rotate synchronously with the first knob 1. In this embodiment, a revolute pair is formed by the first rotary shaft and the second rotary shaft after being directly fixed, and the first rotary knob and the second rotary knob are axially limited by the first rotary knob and the second rotary knob and the panel, so that the first connecting seat can be omitted. It can be understood that the structure of the second rotating pair can refer to the first rotating pair, both can adopt the same structure, and in addition, the first rotating pair can also be utilized, i.e. the connecting seat can not be arranged to be matched with the second rotating shaft 32, thereby simplifying the structure of the second rotating pair.
Other contents not described in this embodiment may refer to embodiment one.
Example three:
in addition to integrally fixing the first rotating shaft 12 and the second rotating shaft 32, as shown in fig. 5, the first knob 1 may be provided with a first magnet 15, the second knob 3 may be provided with a second magnet 33, and the first magnet and the second magnet attract each other to rotate the second knob 3 and the first knob 1 synchronously. Therefore, through holes do not need to be formed in the panel 9, the process steps for producing the panel 9 are reduced, and the overall strength and the waterproof and dustproof effects of the panel 9 are ensured. In order to prevent the second knob 3 from being separated from the panel 9, a second connecting seat 96 may be provided on an inner surface of the panel 9, and the second connecting seat 96 is connected to the second rotating shaft 32 and limits the second rotating shaft 32.
Reference may be made to embodiment two for other matters not described in this embodiment.
Example four:
in addition to the synchronous rotation of the second knob 3 and the first knob 1, the second knob 3 and the first knob 1 can also be designed to rotate independently, and accordingly, the panel 9 can be controlled to open and close in different functions, as shown in fig. 6, the second revolute pair includes a second rotary shaft 32 arranged on the second knob 3 and a second connecting seat 96 arranged on the inner surface of the panel 9, and the second connecting seat 96 is connected with the second rotary shaft 32 and limits the second rotary shaft 32.
Function selection is to be realized alone to second knob 3, consequently can refer to the structure of first knob 1, and second knob 3 is equipped with the second location body, and the second location body is followed the rotation of second knob 3, and second connecting seat 96 is equipped with a plurality of second location archs, and the protruding annular distribution of second location forms the second constant head tank that holds the second location body between two adjacent second location archs, and the second location body is located the second constant head tank and makes the second trigger metal body 31 align with the response portion. In the present embodiment, the second positioning protrusions are annularly distributed on a plane, and besides, the second positioning protrusions may also be distributed along a circumferential surface, and so on. The second positioning protrusion may be provided on the panel 9, or may be provided on both the second connector holder 96 and the panel 9.
The induction part comprises a plurality of second induction electrodes 4, the second induction electrodes 4 are respectively electrically connected with the micro control unit, and the second knob 3 rotates relative to the panel 9 to enable the second trigger metal body 31 to be aligned with different second induction electrodes 4 to trigger the corresponding second induction electrodes 4. In order to prevent the second sensing electrode 4 and the first sensing electrode 2 from being triggered simultaneously, the second sensing electrode 4 and the first sensing electrode 2 may be staggered with each other, that is, when the first triggering metal body 11 is aligned with the first sensing electrode 2 for triggering, the second sensing electrode 4 is not aligned with the second sensing electrode 4, and therefore the second sensing electrode 4 is not triggered, and when the second triggering metal body 31 is aligned with the second sensing electrode 4 for triggering, the second sensing electrode 2 is not aligned with the first sensing electrode 2, and therefore the first sensing electrode 2 is not triggered. Of course, as shown in fig. 7, the second sensing electrode 4 and the first sensing electrode 2 may be directly shielded from each other by the shielding plate 98, the first triggering metal body 11 cannot trigger the second sensing electrode 4, and the second triggering metal body 31 cannot trigger the first sensing electrode 2.
Besides, a sensor for detecting the opening or closing of the panel 9 may be utilized, and the mcu only processes the induced capacitance signal of the first sensing electrode and not processes the induced capacitance signal of the second sensing electrode 4 in the closed state of the panel 9, and only processes the induced capacitance signal of the second sensing electrode and not processes the induced capacitance signal of the first sensing electrode 2 in the open state of the panel 9.
Other contents not described in the present embodiment may refer to the above-described embodiments.
Example five:
in addition to the second sensing electrode 4, only the first sensing electrode 2 may be provided without providing the second sensing electrode 4 in order to reduce the cost. The second knob 3 rotates relative to the panel 9 to align the second triggering metal body 31 with different first sensing electrodes 2 to trigger the corresponding first sensing electrodes 2, a sensing capacitance signal generated by the alignment of the first sensing electrodes 2 with the first triggering metal body 11 is C1, a sensing capacitance signal generated by the alignment of the first sensing electrodes 2 with the second triggering metal body 31 is C2, the difference between C1 and C2 is greater than the detection sensitivity of the micro-control unit, and the micro-control unit processes only C1 but not C2 in the closed state of the panel 9 and processes only C2 but not C1 in the open state of the panel 9.
Other contents not described in the present embodiment may refer to the above-described embodiments.
Example six:
in addition to the second sensing electrode 4, only the first sensing electrode 2 may be provided without providing the second sensing electrode 4 in order to reduce the cost. Namely, the second knob rotates relative to the panel to make the second trigger metal body align with different first induction electrodes to trigger the corresponding first induction electrodes to generate induction capacitance signals. Through the inspection of the on-off state of the panel, the micro control unit processes the induction capacitance signal of the first induction electrode triggered by the first trigger metal body when the panel is in the off state, and the operation information of the stop position of the first knob 1 rotated by a user can be known, so that the electric appliance is controlled.
Other contents not described in the present embodiment may refer to the above-described embodiments.
Example seven:
similar to the sixth embodiment, only the first sensing electrodes 2 are disposed, and the second knob is rotated relative to the panel to align the second triggering metal body with different first sensing electrodes to trigger the corresponding first sensing electrodes. In order to prevent the second trigger metal body and the first trigger metal body from repeatedly triggering the same first induction electrode 2, the position where the second trigger metal body triggers the first induction electrode to stop and the position where the first trigger metal body triggers the first induction electrode to stop may be staggered. As shown in fig. 8, there are 8 first sensing electrodes, which are 2a, 2b, 2c, 2d, 2e, 2f, 2g and 2h, respectively, the first trigger metal body can only stay at the corresponding positions of 2a, 2c, 2e and 2g, the second trigger metal body can only stay at the corresponding positions of 2b, 2d, 2f and 2h, and the micro control unit can determine that the user operates the first knob 1 or the second knob 3 by the change of the sensing capacitance signal generated by the first sensing electrode at the corresponding position.
Other contents not described in the present embodiment may refer to the above-described embodiments.
Other embodiments of the present invention than the preferred embodiments described above, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, should fall within the scope of the present invention defined in the claims.
Claims (12)
1. The utility model provides a touch knob switch, includes first knob and response portion, and first knob is equipped with first metal body that triggers, and response portion includes a plurality of first induction electrodes, and first induction electrode is connected with little the control unit electricity respectively, and the relative panel rotation of first knob makes first metal body that triggers align with different first induction electrodes and trigger corresponding first induction electrode, its characterized in that, first knob is connected in the panel and the axial is spacing in the surface of panel through first revolute pair, and response portion is located the inside or the internal surface of panel.
2. The touch knob switch of claim 1, wherein the first rotary pair comprises a first shaft disposed on the first knob and a first connecting seat disposed on an outer surface of the panel, the first connecting seat being coupled to the first shaft and limiting the first shaft.
3. The touch knob switch according to claim 2, wherein the first connecting seat is provided with a first limit step, and the first rotating shaft is provided with a first limit protrusion which is matched with the first limit step to realize axial limit.
4. The touch knob switch according to claim 2, wherein the first knob has a first positioning body, the first positioning body rotates with the first knob, the first connecting base and/or the panel has a plurality of first positioning protrusions, the first positioning protrusions are annularly distributed, a first positioning groove for accommodating the first positioning body is formed between two adjacent first positioning protrusions, and the first positioning body is located in the first positioning groove to align the first trigger metal body with the first sensing electrode.
5. The touch knob switch according to any one of claims 1 to 4, further comprising a second knob connected to the faceplate through a second revolute pair and axially retained on an inner surface of the faceplate, the second knob being provided with a second trigger metal body.
6. The touch knob switch according to claim 5, wherein the second knob is rotated in synchronization with the first knob, and the second trigger metal body and the first trigger metal body trigger the same first sensing electrode in synchronization.
7. The touch knob switch according to claim 6, wherein the second rotation pair comprises a second rotation shaft disposed on the second knob, the panel has a through hole, and the first rotation shaft and the second rotation shaft are fixed together to make the second knob and the first knob rotate synchronously; or the first knob is provided with a first magnet, the second knob is provided with a second magnet, and the first magnet and the second magnet attract each other to enable the second knob and the first knob to rotate synchronously.
8. The touch knob switch as claimed in claim 5, wherein the second knob is rotated independently of the first knob, the second revolute pair includes a second rotary shaft provided to the second knob and a second connecting seat provided to an inner surface of the panel, and the second connecting seat is connected to the second rotary shaft and limits the second rotary shaft.
9. The touch knob switch according to claim 8, wherein the second knob has a second positioning body, the second positioning body rotates along with the second knob, the second connecting seat and/or the panel has a plurality of second positioning protrusions, the second positioning protrusions are annularly distributed, a second positioning groove for accommodating the second positioning body is formed between two adjacent second positioning protrusions, and the second positioning body is located in the second positioning groove to align the second trigger metal body with the sensing portion.
10. The touch knob switch of claim 8, wherein the sensing portion comprises a plurality of second sensing electrodes electrically connected to the micro control unit, respectively, and the second knob is rotated relative to the panel to align the second triggering metal body with a different second sensing electrode to trigger the corresponding second sensing electrode.
11. The touch knob switch of claim 10, wherein the second sensing electrode is staggered from the first sensing electrode;
or the second induction electrode and the first induction electrode are mutually shielded;
or the micro control unit processes the induction capacitance signal of the first induction electrode in the panel closing state and processes the induction capacitance signal of the second induction electrode in the panel opening state.
12. The touch knob switch of claim 8, wherein the second knob rotates relative to the panel to align the second triggering metal body with a different first sensing electrode to trigger a corresponding first sensing electrode, the first sensing electrode is aligned with the first triggering metal body to generate a sensing capacitance signal of C1, the first sensing electrode is aligned with the second triggering metal body to generate a sensing capacitance signal of C2, and the difference between C1 and C2 is greater than the detection sensitivity of the micro control unit, the micro control unit processes C1 in the panel closed state and processes C2 in the panel open state;
or the second knob rotates relative to the panel to enable the second trigger metal body to align with different first induction electrodes to trigger the corresponding first induction electrodes, and the micro control unit processes induction capacitance signals of the first trigger metal body triggering the first induction electrodes in a panel closing state and processes induction capacitance signals of the second trigger metal body triggering the first induction electrodes in a panel opening state;
or the second knob rotates relative to the panel to enable the second trigger metal body to be aligned with different first induction electrodes to trigger corresponding first induction electrodes, and the position where the second trigger metal body triggers the first induction electrodes to stay is staggered with the position where the first trigger metal body triggers the first induction electrodes to stay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637741.9A CN110620575A (en) | 2018-06-20 | 2018-06-20 | Touch knob switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637741.9A CN110620575A (en) | 2018-06-20 | 2018-06-20 | Touch knob switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110620575A true CN110620575A (en) | 2019-12-27 |
Family
ID=68921057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810637741.9A Pending CN110620575A (en) | 2018-06-20 | 2018-06-20 | Touch knob switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110620575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180223A (en) * | 2020-01-18 | 2020-05-19 | 惠州华阳通用电子有限公司 | Integrated key switching device |
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| CN202524368U (en) * | 2012-03-13 | 2012-11-07 | 美的集团有限公司 | Capacitor switch structure |
| US20140061012A1 (en) * | 2012-08-28 | 2014-03-06 | Xin Yang | Rotary switch |
| US20150288362A1 (en) * | 2014-04-03 | 2015-10-08 | Eaton Corporation | Contactless rotary pull switch |
| CN207053482U (en) * | 2017-07-14 | 2018-02-27 | 惠州拓邦电气技术有限公司 | A kind of separate type rotary switch |
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2018
- 2018-06-20 CN CN201810637741.9A patent/CN110620575A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08329774A (en) * | 1995-06-01 | 1996-12-13 | Teikoku Tsushin Kogyo Co Ltd | Lock mechanism of operation knob for rotary electronic part |
| JP2008243712A (en) * | 2007-03-28 | 2008-10-09 | Sony Corp | Rotary switch |
| CN201689356U (en) * | 2009-12-16 | 2010-12-29 | 美的集团有限公司 | Control device for household appliances |
| CN201993668U (en) * | 2011-02-09 | 2011-09-28 | 厦门建霖工业有限公司 | Big button pressing structure |
| CN202524368U (en) * | 2012-03-13 | 2012-11-07 | 美的集团有限公司 | Capacitor switch structure |
| US20140061012A1 (en) * | 2012-08-28 | 2014-03-06 | Xin Yang | Rotary switch |
| US20150288362A1 (en) * | 2014-04-03 | 2015-10-08 | Eaton Corporation | Contactless rotary pull switch |
| CN207053482U (en) * | 2017-07-14 | 2018-02-27 | 惠州拓邦电气技术有限公司 | A kind of separate type rotary switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180223A (en) * | 2020-01-18 | 2020-05-19 | 惠州华阳通用电子有限公司 | Integrated key switching device |
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