CN101860355A - Touch key device and household appliance using same - Google Patents
Touch key device and household appliance using same Download PDFInfo
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- CN101860355A CN101860355A CN200910029752A CN200910029752A CN101860355A CN 101860355 A CN101860355 A CN 101860355A CN 200910029752 A CN200910029752 A CN 200910029752A CN 200910029752 A CN200910029752 A CN 200910029752A CN 101860355 A CN101860355 A CN 101860355A
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- circuit board
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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]
The present invention relates to a kind of key device, refer in particular to a kind of touch key device that can be applied to household electrical appliance.
[background technology]
The advantage of touch key device is to be quick on the draw, easy operating, outward appearance is succinctly attractive in appearance, useful life is longer, so in industrial circle and daily life, for example, be widely used for substituting traditional mechanical compression formula switch or mechanical knob formula switch in household appliance technical field.
China's utility model patent has disclosed a kind of existing touch sensible key device that is used for gas heater for ZL200720051516.4 number.This key device comprises the annulus copper spring that is arranged between touch panel and the button detection line plate.This annulus copper spring is as the induction conduction device, change in electrical charge when being used to conduct user's finger contact touch panel.Central authorities at this annulus copper spring also are provided with the light-emitting diode that can give out light simultaneously.The shortcoming of this traditional touch key device is: first, be very soft element as the annulus copper spring of induction conduction device, can swing at the end of the installation process medi-spring of touch key device, be difficult for the location; Second, through after the long-term use repeatedly, the deformation-recovery performance of spring can descend, and may cause the end of spring and the defective tightness that contacts of touch panel, thereby influences the sensitivity of touch key device.
China's utility model patent has disclosed the another kind of existing touch sensible key control device that is used for household appliances for ZL200720123653.4 number.The elastic electric conductor of this touch device has a metallic support, this metallic support can provide to elastic electric conductor and support preferably and make elastic electric conductor be close to below the touch key-press, but the deficiency of this touch device is: the shape of its elastic electric conductor is special, need special mould and technology to make, improved the cost of whole device.Again it, this touch device does not provide solution with regard to the luminous demonstration problem of button yet.
[summary of the invention]
Correspondingly, one of purpose of the present invention is to provide a kind of both can guarantee touch-sensitive, and the touch key device of clear and definite luminous demonstration also can be provided.
For achieving the above object: the touch-key of one embodiment of the present invention comprises the touch sensible element, control circuit board with this touch sensible element electric connection, be arranged on the bracing or strutting arrangement between this touch sensible element and this control circuit board, and the light-emitting component that is arranged on this touch sensible element below.Astigmatic passage wherein is set in the bracing or strutting arrangement, and the light that this light-emitting component sends scatters out through this astigmatism passage.
As a further improvement on the present invention, described bracing or strutting arrangement comprises the support component that an end is connected with described control circuit board, be arranged on the light-scattering component between touch sensible element and the support component, and be arranged on the elastic buffer component between light-scattering component and the support component.
As a further improvement on the present invention, all sides of described support component have the grab of downward extension, and the side of this grab and control circuit board cooperatively interacts; Described light-scattering component is a scattering film, and this heat dissipation film is bonded in the downside of touch sensible element by two-sided tape or glue; Described elastic buffer component is a foam, and this foam is bonded in the downside of light-scattering component by two-sided tape or glue.
As a further improvement on the present invention, described support component has the depression towards touch sensible element one side, the size of this depression makes the elastic buffer component, light-scattering component, the touch sensible element that bond together successively be placed in this depression, and elastic buffer component is resisted against on the bottom surface of this depression, and the reference column that several locate this elastic buffer component is set in the described depression.
As a further improvement on the present invention, the opening of described astigmatic passage one end is arranged on the bottom surface of this depression, and Open Side Down extends and be resisted against on the control circuit board at this for described astigmatic passage.The shape flare of described astigmatic passage, the opening size of its close control circuit board one side is less than the opening size that is arranged on the depression bottom surface.
Described light-emitting component is arranged on the LED light lamp on the control circuit board, and its position is corresponding to the opening of astigmatic passage near control circuit board one side.
As a further improvement on the present invention, described touch sensible element is the gold-plated printed circuit board (PCB) of sensitive surface, it is by flexible circuit board (FPC, Flexible Printed Circuit) is electrically connected to control circuit board, have on the described printed circuit board (PCB) corresponding to the opening of astigmatic passage in depression bottom surface upper shed, the light that light-emitting component sends scatters out through astigmatic passage, light-scattering component and this opening successively.
The household electrical appliance of one embodiment of the present invention, it has the control panel of this household electrical appliance operation of control, and touch key device is installed in this control panel below.This touch-key comprises the touch sensible element, and the control circuit board with this touch sensible element electrically connects is arranged on the bracing or strutting arrangement between this touch sensible element and this control circuit board, and the light-emitting component that is arranged on this touch sensible element below.Astigmatic passage wherein is set in the bracing or strutting arrangement, and the light that this light-emitting component sends scatters out through this astigmatism passage.
The invention has the beneficial effects as follows: owing to adopted the novel bracing or strutting arrangement that is arranged between sensing element and the control circuit board, this sensing element can closely be resisted against the below of touch panel; Owing to adopted flaring astigmatic passage and light-scattering component, the light that light-emitting component sends can and evenly scatter out by guiding fully.
[Brief Description Of Drawings]
Fig. 1 is the three-dimensional exploded view of the touch key device of one embodiment of the present invention;
Fig. 2 is the three-dimensional combination figure of the touch key device among Fig. 1;
Fig. 3 is the generalized section of the touch key device among Fig. 1;
Fig. 4 is the schematic perspective view of the support component of the touch key device among Fig. 1.
[embodiment]
With reference to figure 1 and Fig. 2, the touch key device 1 of one embodiment of the present invention comprises touch sensible element 2, the control circuit board 6 that electrically connects with touch sensible element 2, and be arranged on bracing or strutting arrangement between sensing element 2 and the control circuit board 6.It above this touch key device 1 control panel 7.Control panel 7 can be mounted in the panel of the household electrical appliance controller of the finger touch control that supplies the user on certain household electrical appliance, and these household electrical appliance can be household electric refrigerator, washing machine, gas-cooker for kitchen use, range hood or the like.When touch key device 1 is installed to the below of control panel 7, the sensitive surface of the sensing element 2 of touch key device 1 is close on the lower surface of control panel 7, and induction and feedback operation person touch the electric capacitance change that produces when changing control panel 7.
In the present embodiment, sensing element 2 is printed circuit board (PCB)s, and the central authorities of this printed circuit board (PCB) have opening 20, and it acts on subsequent detailed.This printed circuit board (PCB) can be by the size cutting as required of common printed circuit board (PCB), thereby avoided using special mould or instrument to remove the processing and manufacturing sensing element, upper surface at the printed circuit board (PCB) of well cutting size is gold-plated, as the sensitive surface of sensing element 2.Control circuit board 6 is electrically connected to sensing element 2 by flexible circuit board (FPC, Flexible Printed Circuit), and control circuit board 6 is provided with light-emitting component 60, and light-emitting component 60 is LED light lamp in the present embodiment.When the user touches control panel 7, sensing element 2 is sent to control circuit board 6 with the signal sensed (for example variation of the capacitance by feedback-induced element 2) by flexible circuit board, correspondingly control circuit board sends control signal and gives light-emitting component 60, controls the light on and off of light-emitting component 60.
As shown in Figure 1, and cooperate with reference to figure 3, bracing or strutting arrangement comprises light-scattering component 3, elastic buffer component 4, and support component 5.In the present embodiment, dispersing element 3 be one deck thin can printing opacity and scattering film that light is dispersed out equably, the size of this scattering film is corresponding to the size of sensing element 2, and can be bonded on the lower surface of sensing element 2 by the two-sided tape (not shown).In the present embodiment, elastic buffer component 4 is the strip foams with elastic variable, and this foam can be bonded on the lower surface of dispersing element 3 by the two-sided tape (not shown).
Again referring to figs. 2 to Fig. 4, in the present embodiment, support component 5 is blockss of the plastic material that roughly is square, its side towards sensing element 2 forms depression 52, the feasible sensing element 2 that bonds to together of the size of depression 52 and the degree of depth, light-scattering component 3, elastic buffer component 5 can be placed in this depression 52 and be resisted against on the bottom surface of depression 52, and when sensing element 2 is in free state, the upper level of sensing element 2 exceeds the side (see figure 3) of depression 52 slightly, such design makes when sensing element 2 clings to the lower surface of control panel 7, control panel 7 can apply certain pressure to sensing element 2, compressive deformation by elastic buffer component 3, can be so that the upper surface of sensing element 2 be roughly concordant with depression 52 side, thus the sensing element 2 and the lower surface of control panel 7 are fitted tightly.For realizing location, in depression 52, be provided with several and can assist reference column 53 (see figure 4)s of blocking elastic buffer component 3 elastic buffer component 3.Support component 5 has the grab 51 of some downward extensions towards a side of control circuit 6.Grab 51 can fasten the side of control circuit board 7, thereby support component and control circuit board 6 are linked together.
The astigmatic passage 55 of the light that sent of guiding light-emitting component 60 is set on the support component 4.With reference to figure 3, astigmatic passage 55 extends downwards from 52 the bottom surface of caving in, and its larger-size opening 550 is arranged on this bottom surface, and the less opening 551 of its size is arranged on the end of astigmatic passage 55, thereby makes the global shape of astigmatic passage 55 present tubaeform.When each elements combination of touch key device 1 to a time-out, the end of astigmatic passage 55 is resisted against on the upper surface of control circuit board 6, the light-emitting component 60 that makes end openings 551 face to be arranged on the control circuit board 6; And the opening 20 of sensing element 2 faces astigmatic passage 55 and is arranged on opening 550 on depression 52 the bottom surface.Like this, the light that light-emitting component 60 sends passes through the even scattering of light-scattering component 3 again through the guiding of astigmatic passage 55, and the opening 20 through sensing element 2 is scattered out then.The shape of the opening 20 by changing sensing element 2 can present difform light zone on control panel 7.
What more than disclose only is an embodiment of the invention, and those of ordinary skill in the art also can under the prerequisite of not paying creative work, make rational adjustment to embodiments of the present invention with reference on the basis of above execution mode.For example, the elastic buffer component 4 of present embodiment is a foam, also can substitute with the annulus copper spring in other embodiments.Again for example, the light-emitting component 60 of present embodiment is a light-emitting diode, and its position is arranged on the control circuit board 6, also can substitute with miniature bulb in other embodiments, and the position of miniature bulb also can be set directly in the astigmatic passage 55 of support component 5.Again for example, the material that sensing element 2, light-scattering component 3, elastic buffer component 5 are bonded to together is a two-sided tape in the present embodiment, also can replace with the liquid glue that can solidify in other embodiments.In a word, these rational adjustment all should be within the protection range of claim of the present invention.
Claims (14)
1. touch-key, it comprises the touch sensible element, control circuit board with this touch sensible element electric connection, be arranged on the bracing or strutting arrangement between this touch sensible element and this control circuit board, and the light-emitting component that is arranged on this touch sensible element below, it is characterized in that, astigmatic passage is set in the bracing or strutting arrangement, the light that this light-emitting component sends scatters out through this astigmatism passage.
2. touch key device as claimed in claim 1, it is characterized in that, described bracing or strutting arrangement comprises the support component that an end is connected with described control circuit board, be arranged on the light-scattering component between touch sensible element and the support component, and be arranged on the elastic buffer component between light-scattering component and the support component.
3. touch key device as claimed in claim 2 is characterized in that all sides of described support component have the grab of downward extension, and the side of this grab and control circuit board cooperatively interacts.
4. touch key device as claimed in claim 2 is characterized in that described light-scattering component is a scattering film, and this heat dissipation film is bonded in the downside of touch sensible element by two-sided tape or glue.
5. touch key device as claimed in claim 2 is characterized in that described elastic buffer component is a foam, and this foam is bonded in the downside of light-scattering component by two-sided tape or glue.
6. touch key device as claimed in claim 2, it is characterized in that, described support component has the depression towards touch sensible element one side, the size of this depression makes the elastic buffer component, light-scattering component, the touch sensible element that bond together successively be placed in this depression, and elastic buffer component is resisted against on the bottom surface of this depression.、
7. touch key device as claimed in claim 6 is characterized in that, the reference column that several locate this elastic buffer component is set in the described depression.
8. touch key device as claimed in claim 6 is characterized in that, the opening of described astigmatic passage one end is arranged on the bottom surface of this depression, and described astigmatic passage extends and is resisted against on the control circuit board in that Open Side Down from this.
9. touch key device as claimed in claim 8 is characterized in that, the shape flare of described astigmatic passage, and the end openings size of its close control circuit board one side is less than the opening size that is arranged on the depression bottom surface.
10. as one of any one the described touch key device of claim 6 to 8, it is characterized in that, described light-emitting component is arranged on the LED light lamp on the control circuit board, and its position is corresponding to the end openings of astigmatic passage near control circuit board one side.
11. touch key device as claimed in claim 10 is characterized in that, described touch sensible element is a printed circuit board (PCB), and the upper surface of this printed circuit board (PCB) is gold-plated sensitive surface.
12. touch key device as claimed in claim 11 is characterized in that, printed circuit board (PCB) is electrically connected to control circuit board by flexible circuit board (FPC, Flexible Printed Circuit).
13. touch key device as claimed in claim 11, it is characterized in that, have on the described printed circuit board (PCB) corresponding to the opening of astigmatic passage in depression bottom surface upper shed, the light that light-emitting component sends scatters out through astigmatic passage, light-scattering component and this opening successively.
14. household electrical appliance, the control panel that it has these household electrical appliance of control is characterized in that, install as one of above any claim described touch key device this control panel below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029752A CN101860355A (en) | 2009-04-08 | 2009-04-08 | Touch key device and household appliance using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029752A CN101860355A (en) | 2009-04-08 | 2009-04-08 | Touch key device and household appliance using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101860355A true CN101860355A (en) | 2010-10-13 |
Family
ID=42946045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910029752A Pending CN101860355A (en) | 2009-04-08 | 2009-04-08 | Touch key device and household appliance using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101860355A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315565A (en) * | 2014-10-30 | 2015-01-28 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic oven |
| WO2018068679A1 (en) * | 2016-10-14 | 2018-04-19 | 广州视源电子科技股份有限公司 | Touch key apparatus and touch device |
| CN108649944A (en) * | 2018-05-28 | 2018-10-12 | 佛山市鑫敏电子科技有限公司 | A kind of touch induction device |
| CN108768207A (en) * | 2018-05-31 | 2018-11-06 | 业成科技（成都）有限公司 | Touch device |
| US10197463B2 (en) | 2014-06-09 | 2019-02-05 | Hitachi Automotive Systems, Ltd. | Dynamic quantity measuring device and pressure sensor using same |
-
2009
- 2009-04-08 CN CN200910029752A patent/CN101860355A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10197463B2 (en) | 2014-06-09 | 2019-02-05 | Hitachi Automotive Systems, Ltd. | Dynamic quantity measuring device and pressure sensor using same |
| CN104315565A (en) * | 2014-10-30 | 2015-01-28 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic oven |
| WO2018068679A1 (en) * | 2016-10-14 | 2018-04-19 | 广州视源电子科技股份有限公司 | Touch key apparatus and touch device |
| CN108649944A (en) * | 2018-05-28 | 2018-10-12 | 佛山市鑫敏电子科技有限公司 | A kind of touch induction device |
| CN108768207A (en) * | 2018-05-31 | 2018-11-06 | 业成科技（成都）有限公司 | Touch device |
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| PB01 | Publication | ||
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Application publication date: 20101013 |