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Touch key device and household appliance using same

A touch and key technology, applied in circuits, electrical switches, electrical components, etc., can solve problems such as insufficient contact, increased device cost, and reduced spring deformation recovery performance.

Inactive Publication Date: 2010-10-13
BSH ELECTRICAL APPLIANCES JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this traditional touch key device are: one, as the ring copper spring of the induction conduction device is a very soft element, the end of the spring will swing left and right during the installation process of the touch key device, making it difficult to locate; Otherwise, after long-term repeated use, the deformation recovery performance of the spring will decrease, which may cause the end of the spring to not be in close contact with the touch panel, thereby affecting the sensitivity of the touch key device.
The elastic conductor of this touch-type device has a metal bracket, which can provide better support for the elastic conductor and make the elastic conductor close to the bottom of the touch button, but the deficiency of this touch-type device is: its The shape of the elastic conductor is special, which requires a special mold and process to make, which increases the cost of the whole device
Furthermore, this touch device does not provide a solution to the problem of the luminous display of the buttons.

Method used

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  • Touch key device and household appliance using same
  • Touch key device and household appliance using same
  • Touch key device and household appliance using same

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Embodiment Construction

[0020] refer to figure 1 and figure 2 , a touch key device 1 according to an embodiment of the present invention includes a touch sensing element 2, a control circuit board 6 electrically connected to the touch sensing element 2, and a support device arranged between the sensing element 2 and the control circuit board 6 . Above the touch key device 1 is a control panel 7 . The control panel 7 can be a panel of a household appliance controller installed on some household appliances for user's finger touch control, and the household appliances can be household refrigerators, washing machines, kitchen gas stoves, range hoods, etc. . When the touch key device 1 is installed under the control panel 7, the sensing surface of the sensing element 2 of the touch key device 1 is closely attached to the lower surface of the control panel 7 to sense and feedback the operator's touch to change the control panel 7. Capacitance changes.

[0021] In this embodiment, the sensing element ...

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Abstract

The invention relates to a touch key device which comprises a touch sensing element, a control circuit board electrically connected with the touch sensing element, a support device arranged between the touch sensing element and the control circuit board, and a lighting element arranged below the touch sensing element, wherein a scattering channel is arranged in the support device. Light emitted by the lighting element scatters through the scattering channel.

Description

[technical field] [0001] The invention relates to a key device, in particular to a touch key device that can be applied to household appliances. [Background technique] [0002] The advantages of the touch button device are sensitive response, easy operation, simple and beautiful appearance, and long service life. Therefore, in the industrial field and people's daily life, such as in the field of household appliances, it has been widely used to replace the traditional mechanical push button. switch or mechanical knob switch. [0003] Chinese Utility Model Patent No. ZL200720051516.4 discloses an existing touch-sensitive button device for gas water heaters. The key device includes an annular copper spring arranged between the touch panel and the key detection circuit board. The circular copper spring serves as an inductive conduction device for conducting charge changes when a user's finger touches the touch panel. At the same time, a light-emitting diode that can emit ligh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/96H01H9/18
Inventor 潘邦延吴耀梁晨王帮震
Owner BSH ELECTRICAL APPLIANCES JIANGSU
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