CN201144345Y - Touch switch of washing machine - Google Patents
Touch switch of washing machine Download PDFInfo
- Publication number
- CN201144345Y CN201144345Y CNU2007200617740U CN200720061774U CN201144345Y CN 201144345 Y CN201144345 Y CN 201144345Y CN U2007200617740 U CNU2007200617740 U CN U2007200617740U CN 200720061774 U CN200720061774 U CN 200720061774U CN 201144345 Y CN201144345 Y CN 201144345Y
- Authority
- CN
- China
- Prior art keywords
- soft
- washing machine
- control
- touch control
- circuit board
- 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.)
- Expired - Fee Related
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- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The utility model relates to a touch switch of a washing machine, which comprises a washing machine provided with a control panel and a circuit board; wherein, the touch switch is arranged under the control panel; a clearance is arranged between an induction sheet and a ground wire of the circuit board for generating an inherent parasitic capacitance; when a finger approaches to the metal touch induction sheet, a new capacitance generated between the metal touch induction sheet and the finger which can overlap on the original parasitic capacitance, thereby changing and influencing the original parasitic capacitance value. A microprocessor of the circuit board judges whether the finger approaches to the touch sheet by detecting the variation of the original parasitic capacitance. The touch switch has the advantages of simple and reasonable structure, handy manipulation and long service life.
Description
Technical field
The utility model relates to the soft-touch control of a kind of washing machine, particularly a kind of washing machine.
Background technology
The gauge tap of existing washer control panel generally has three kinds: a kind of is the soft-touch type key switch, and the button top needs to be provided with pad pasting.Long-term use causes pad pasting to be scraped wearing easily, and perhaps the reseting shrapnel of button lost efficacy, and causes maloperation or is failure to actuate, and the user is made troubles.Other two kinds is respectively rotary switch and press button, these two kinds of construction of switch complexity, and the life-span is shorter.A kind of use in washing machine switching device is disclosed among the China Patent No. ZL200520070714.6; comprise the terminal I that is arranged on the base; terminal II; terminal II I and movable contact spring; the terminal II end is provided with stationary contact; terminal II I and movable contact spring join; movable contact spring is provided with spring assembly; movable contact spring is provided with movable contact and relative with stationary contact; be arranged on the auxilliary sheet on the base; main leaf and heating resistor; downside is provided with guard pin before the movable contact spring; base is provided with cover plate, and base is embedded in the lock hook seat, is provided with lock core slide block and back-moving spring in the lock hook seat; before the lock core slide block; the rear portion offers locating hole and locking holes respectively, and the locking holes back side is provided with bonnet.This structure is the contact energising, promptly influences its control operation when there is dirt on the contact surface.
The utility model content
The purpose of this utility model aims to provide a kind of soft-touch control of controlling the washing machine of light, long service life, to overcome the deficiencies in the prior art.
Press the soft-touch control of a kind of washing machine of this purpose design, comprise the washing machine that is provided with control panel and circuit board, its architectural feature is that the control panel below is provided with soft-touch control, is provided with certain intervals between the sensing chip of soft-touch control and the ground wire of circuit board.
Be connected with upper ledge on the described washing machine shell, the upper ledge end face is connected with control panel, and soft-touch control and circuit board are arranged between control panel and the upper ledge.
Described control panel includes the preceding control plate that is connected with the upper ledge end face, and preceding control plate top surface is connected with framework, is crimped with transparent cover plate between framework and the preceding control plate.
The sensing chip end face of described soft-touch control is connected with preceding control plate lower surface, and the underrun spring is connected with the inductor installing plate.The position of the corresponding sensing chip of transparent cover plate is provided with indicator diagram, and the inside casing of associated frame members is provided with the boss that maintains an equal level with framework.The control plate is provided with watch window before described, and the circuit board correspondence is provided with display screen.
Be provided with certain intervals between the sensing chip of the utility model soft-touch control and the ground wire of circuit board, promptly produce an intrinsic parasitic capacitance, when the close metal touch sensible sheet of finger, can produce a new electric capacity between metal touch sensible sheet and the finger, this electric capacity meeting superposition is on original parasitic capacitance.Thereby can change and influence original parasitic capacitance value.The microprocessor of circuit board has judged whether that by the variation that detects parasitic capacitance finger is near touching sheet.It is simple and reasonable, control light, long service life.
Description of drawings
Fig. 1 is the utility model one embodiment decomposition texture schematic diagram.
Fig. 2 is the utility model assembly structure schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1 and Fig. 2, the soft-touch control of this washing machine comprises the washing machine that is provided with control panel and circuit board 7.Be connected with upper ledge 8 on the washing machine shell, the upper ledge end face is connected with control panel, and soft-touch control and circuit board are arranged between control panel and the upper ledge.Control panel includes the preceding control plate 3 that is connected with upper ledge 8 end faces, and preceding control plate top surface is connected with framework 1, is crimped with transparent cover plate 2 between framework and the preceding control plate.Be provided with certain intervals between the sensing chip 4 of soft-touch control and the ground wire of circuit board 7, end face is connected with preceding control plate 3 lower surfaces, and underrun spring 5 is connected with inductor installing plate 6.The position of transparent cover plate 2 corresponding sensing chips 4 is provided with indicator diagram 2.2, and the inside casing of associated frame members 1 is provided with the boss 2.1 that maintains an equal level with framework.Preceding control plate is provided with watch window 3.1, and the circuit board correspondence is provided with display screen 7.1.
Claims (6)
1. the soft-touch control of a washing machine comprises the washing machine that is provided with control panel and circuit board (7), it is characterized in that the control panel below is provided with soft-touch control, is provided with certain intervals between the ground wire of sensing chip of soft-touch control (4) and circuit board.
2. according to the soft-touch control of the described washing machine of claim 1, it is characterized in that being connected with upper ledge (8) on the described washing machine shell, the upper ledge end face is connected with control panel, and soft-touch control and circuit board are arranged between control panel and the upper ledge.
3. according to the soft-touch control of claim 1 or 2 described washing machines, it is characterized in that described control panel includes the preceding control plate (3) that is connected with the upper ledge end face, preceding control plate top surface is connected with framework (1), is crimped with transparent cover plate (2) between framework and the preceding control plate.
4. according to the soft-touch control of the described washing machine of claim 3, it is characterized in that the sensing chip end face of described soft-touch control is connected with preceding control plate lower surface, underrun spring (5) is connected with inductor installing plate (6).
5. according to the soft-touch control of the described washing machine of claim 4, it is characterized in that the position of the corresponding sensing chip of described transparent cover plate is provided with indicator diagram (2.2), and the inside casing of associated frame members is provided with the boss (2.1) that maintains an equal level with framework.
6. according to the soft-touch control of the described washing machine of claim 5, it is characterized in that described preceding control plate is provided with watch window (3.1), the circuit board correspondence is provided with display screen (7.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200617740U CN201144345Y (en) | 2007-12-15 | 2007-12-15 | Touch switch of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200617740U CN201144345Y (en) | 2007-12-15 | 2007-12-15 | Touch switch of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144345Y true CN201144345Y (en) | 2008-11-05 |
Family
ID=40081218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200617740U Expired - Fee Related CN201144345Y (en) | 2007-12-15 | 2007-12-15 | Touch switch of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144345Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962904B (en) * | 2009-07-22 | 2012-07-18 | 声宝股份有限公司 | Touch system of washing machine and false touch elimination method used thereby |
| CN104246628A (en) * | 2012-04-11 | 2014-12-24 | 伯斯有限公司 | Controlling table music system |
-
2007
- 2007-12-15 CN CNU2007200617740U patent/CN201144345Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962904B (en) * | 2009-07-22 | 2012-07-18 | 声宝股份有限公司 | Touch system of washing machine and false touch elimination method used thereby |
| CN104246628A (en) * | 2012-04-11 | 2014-12-24 | 伯斯有限公司 | Controlling table music system |
| CN104246628B (en) * | 2012-04-11 | 2018-02-23 | 伯斯有限公司 | Control desktop music system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |