CN204131486U - Anti-interference touch circuit of touch key of washing machine - Google Patents
Anti-interference touch circuit of touch key of washing machine Download PDFInfo
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- CN204131486U CN204131486U CN201420542482.9U CN201420542482U CN204131486U CN 204131486 U CN204131486 U CN 204131486U CN 201420542482 U CN201420542482 U CN 201420542482U CN 204131486 U CN204131486 U CN 204131486U
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- touch
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- washing machine
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- 238000005406 washing Methods 0.000 title claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims abstract description 18
- 239000011324 bead Substances 0.000 claims abstract description 14
- 235000007164 Oryza sativa Nutrition 0.000 claims description 7
- 235000009566 rice Nutrition 0.000 claims description 7
- 240000007594 Oryza sativa Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Food-Manufacturing Devices (AREA)
Abstract
The utility model relates to an jam-proof touch circuit for washing machine touch button, including touch chip, touch chip filter capacitance connects on the touch chip, touch chip filter capacitance's one end is through first magnetic bead filter connecting circuit access power Vcc end. And a touch modulation capacitor is connected to the touch chip, and one end of the touch modulation capacitor is connected with GND through a second magnetic bead filter. The utility model discloses can effectively overcome interference false response and EMI test that probably appear in actual operation and experiment and not pass through. And the effect is good through repeated test. And simultaneously, the utility model discloses the result is simple, low cost.
Description
Technical field
The utility model relates to washing machine touch key-press technical field, refers more particularly to a kind of anti-tampering touch circuit for washing machine touch key-press.
Background technology
The high-grade Intelligent touch household appliances of some family expenses are as microwave oven, and electromagnetic oven, water heater, touch key-press all used by washing machine etc., the implementation of touch key-press, generally has resistive touch, capacitance touch two kinds etc.
At present, washing machine touch key-press control board, using more is capacitance touch, this kind of touch key-press control circuit, the function of software program is added by touching the basic peripheral circuit of chip, can realize touch key-press response, this touch control board needs to do relevant anti-tampering test, may occur that response and EMI test situation about not passing through by mistake in interference in practical operation and test.Occur that interference responds by mistake and EMI tests the defect do not passed through for overcoming, some investigators proposes the scheme increasing special magnet ring on complete machine wire harness, but this kind of scheme cost is higher, is also difficult to produce a desired effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of anti-tampering touch circuit of washing machine touch key-press, overcomes in the button operation of prior art existence and easily occurs that interference responds and EMI tests the defect do not passed through by mistake.
For solving the problems of the technologies described above, the utility model provides a kind of anti-tampering touch circuit of washing machine touch key-press, comprise and touch chip, touch chip filter capacitor, described touch chip filter capacitor is connected on described touch chip, and one end of described touch chip filter capacitor is by the first magnetic bead filter connecting circuit access power Vcc end.
Further optimization, described touch chip is connected with touch modulating capacitor, and one end of described touch modulating capacitor connects GND by the second magnetic bead filter.
Described first magnetic bead filter, the second magnetic bead filter are can machine transplanting of rice part.Can machine transplanting of rice part by the automatic machine transplanting of rice of machine, therefore production efficiency is high.
The utility model effectively can overcome the interference that may occur in practical operation and test, and response and EMI test are not passed through by mistake.Through repetition test test, respond well.Meanwhile, the utility model result is simple, with low cost.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is further described in detail.
Fig. 1 is the circuit structure diagram of the utility model embodiment.
Embodiment
As shown in Figure 1, the anti-tampering touch circuit of washing machine touch key-press comprises touch chip IC 101, touch modulating capacitor C101, touch chip filter capacitor C102, between the Vdd pin that touch chip filter capacitor C102 is connected to touch chip IC 101 and Vss pin, the Vdd touching chip IC 101 connects the external circuit access power Vcc of+5V.Touch one end of chip filter capacitor C102 by the first magnetic bead filter B1 connecting circuit access power Vcc end.
Touch modulating capacitor C101 in parallel with touching modulated resistance R101, on the P01 pin being connected to touch chip IC 101 and Vss pin.Be connected with GND by the second magnetic bead filter at the ground voltage end touching modulating capacitor C101.
First magnetic bead filter, the second magnetic bead filter are can machine transplanting of rice part.Can machine transplanting of rice part by the automatic machine transplanting of rice of machine, therefore production efficiency is high.
The utility model is tested through repetition test, and the interference that may occur in effectively overcoming practical operation and testing by mistake response and EMI test is not passed through, respond well.Meanwhile, the utility model result is simple, with low cost.
It should be noted last that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. the anti-tampering touch circuit of a washing machine touch key-press, comprise and touch chip, touch chip filter capacitor, described touch chip filter capacitor is connected on described touch chip, it is characterized in that, one end of described touch chip filter capacitor is by the first magnetic bead filter connecting circuit access power Vcc end.
2. the anti-tampering touch circuit of washing machine touch key-press according to claim 1, is characterized in that, described touch chip is connected with touch modulating capacitor, and one end of described touch modulating capacitor connects GND by the second magnetic bead filter.
3. the anti-tampering touch circuit of washing machine touch key-press according to claim 1 and 2, is characterized in that, described first magnetic bead filter, the second magnetic bead filter are can machine transplanting of rice part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542482.9U CN204131486U (en) | 2014-09-19 | 2014-09-19 | Anti-interference touch circuit of touch key of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542482.9U CN204131486U (en) | 2014-09-19 | 2014-09-19 | Anti-interference touch circuit of touch key of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204131486U true CN204131486U (en) | 2015-01-28 |
Family
ID=52387801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420542482.9U Active CN204131486U (en) | 2014-09-19 | 2014-09-19 | Anti-interference touch circuit of touch key of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204131486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110324994A (en) * | 2018-03-28 | 2019-10-11 | 青岛海尔滚筒洗衣机有限公司 | Power panel box and dryer |
-
2014
- 2014-09-19 CN CN201420542482.9U patent/CN204131486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110324994A (en) * | 2018-03-28 | 2019-10-11 | 青岛海尔滚筒洗衣机有限公司 | Power panel box and dryer |
| CN110324994B (en) * | 2018-03-28 | 2022-04-12 | 青岛海尔洗涤电器有限公司 | Power supply board box and clothes dryer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WHIRLPOOL (CHINA) CO., LTD. Free format text: FORMER NAME: HEFEI RONGSHIDA SANYO ELECTRIC CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 230088 Hefei high tech Industrial Development Zone, Anhui, No. L-2 Patentee after: Whirlpool (China) Limited by Share Ltd Address before: 230000 science and technology zone, Hefei, Anhui, No. 96 Patentee before: Hefei Rongshida Sanyo Electric Co., Ltd. |