阅读说明：本技术 一种触摸旋钮开关 (Touch knob switch ) 是由 傅林财 郑妙良 于 2018-06-20 设计创作，主要内容包括：本发明公开了一种触摸旋钮开关,属于电器配件领域,解决了现有技术中触摸旋钮开关操作不可靠的问题,解决该问题的技术方案主要包括第一旋钮和感应部,第一旋钮设有第一触发金属体,感应部包括多个第一感应电极,第一感应电极分别与微控制单元电连接,第一旋钮相对面板旋转使第一触发金属体与不同的第一感应电极对齐来触发相应的第一感应电极,第一旋钮通过第一转动副连接于面板并轴向限位于面板的外表面,感应部位于面板的内部或内表面。本发明主要用于触摸旋转操作电器。(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.)

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.

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