CN201557101U - High-frequency carrier capacitance type elevator touch button - Google Patents
High-frequency carrier capacitance type elevator touch button Download PDFInfo
- Publication number
- CN201557101U CN201557101U CN2009202126545U CN200920212654U CN201557101U CN 201557101 U CN201557101 U CN 201557101U CN 2009202126545 U CN2009202126545 U CN 2009202126545U CN 200920212654 U CN200920212654 U CN 200920212654U CN 201557101 U CN201557101 U CN 201557101U
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- frequency carrier
- high frequency
- capacitance type
- type touch
- button
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Abstract
A high-frequency carrier capacitance type elevator touch button comprises a metal induction piece, a button casing and a printed circuit board; a high-frequency carrier capacitance type touch switching circuit is arranged on the printed circuit board; an input terminal and an output terminal are arranged in the high-frequency carrier capacitance type touch switching circuit; the metal induction piece is arranged on the surface of the button casing; the printed circuit board is arranged in the button casing; and the metal induction piece is electrically connected with the input terminal of the high-frequency carrier capacitance type touch switching circuit. A 555 time-base integrated circuit and a feedback resistor are arranged in the high-frequency carrier capacitance type touch switching circuit. The utility model adopts the metal induction piece and the high-frequency carrier capacitance type touch switching circuit as an electronic switch, thereby reducing the volume and solving the problems of complicated manufacturing and short service life of a mechanical switch.
Description
Technical field
The utility model relates to electricity field, relates in particular to the electric control system of elevator, particularly a kind of high frequency carrier condenser type elevator touch button.
Background technology
In the prior art, traditional elevator adopts the mechanical switch button, and product shape is bigger, and is attractive in appearance relatively poor with ease for use, and mechanical switch life number of times problem is arranged, and is difficult to satisfy the requirement of high-grade elevator.
Summary of the invention:
The purpose of this utility model is to provide a kind of high frequency carrier condenser type elevator touch button, and described this high frequency carrier condenser type elevator touch button will solve big, the short technical problem of mechanical switch life-span of the mechanical switch button external form that traditional elevator adopts in the prior art.
This high frequency carrier condenser type elevator touch button of the present utility model is made of metal sensing chip, button housing and printed circuit board (PCB), described printed circuit board (PCB) is provided with high frequency carrier capacitor type touch switch circuit, be provided with an input and an output in the described high frequency carrier capacitor type touch switch circuit, wherein, described metal sensing chip is arranged on the surface of described button housing, described printed circuit board (PCB) is arranged in the button housing, and the metal sensing chip is electrically connected with the input of high frequency carrier capacitor type touch switch circuit.
Further, be provided with one 555 time-base integrated circuit and feedback resistance in the described high frequency carrier capacitor type touch switch circuit.
Operation principle of the present utility model is: during user's finger touch button, trigger high frequency carrier capacitor type touch switch circuit by the metal sensing chip, the output of high frequency carrier capacitor type touch switch circuit produces the signal that connects or disconnects.By changing the resistance of feedback resistance, can regulate induction sensitivity.
The utility model and prior art are compared, and its technique effect is actively with tangible.The utility model adopts metal sensing chip and high frequency carrier capacitor type touch switch circuit as electronic switch, in high frequency carrier capacitor type touch switch circuit, adopt 555 time-base integrated circuits and computing amplification circuit circuit, reduced volume, the metal sensing chip is arranged on the surface of button housing, printed circuit board (PCB) is arranged in the button, the manufacturing complexity and the switch life problem of mechanical switch have been solved, high frequency carrier capacitor type touch switch circuit makes product that various common interfaces can be provided, the metal sensing chip can adopt any conductive surface, just can regulate sensitivity expediently by the resistance that changes feedback resistance.
Description of drawings:
Fig. 1 is the electrical schematic diagram of high frequency carrier condenser type elevator touch button of the present utility model.
Fig. 2 is the schematic diagram of 555 time-base integrated circuits in the high frequency carrier condenser type elevator touch button of the present utility model.
Embodiment:
As depicted in figs. 1 and 2, high frequency carrier condenser type elevator touch button of the present utility model, by metal sensing chip (not shown), button housing (not shown) and printed circuit board (PCB) (not shown) constitute, described printed circuit board (PCB) is provided with high frequency carrier capacitor type touch switch circuit, be provided with an input INPUT1 and an output OUTPUT in the described high frequency carrier capacitor type touch switch circuit, wherein, described metal sensing chip is arranged on the surface of described button housing, described printed circuit board (PCB) is arranged in the button housing, and the metal sensing chip is electrically connected with the input of high frequency carrier capacitor type touch switch circuit.
Further, be provided with one 555 time-base integrated circuit and feedback resistance in the described high frequency carrier capacitor type touch switch circuit.
The course of work of present embodiment is: during user's finger touch button, trigger high frequency carrier capacitor type touch switch circuit by the metal sensing chip, the output of high frequency carrier capacitor type touch switch circuit produces the signal that connects or disconnects.By changing the resistance of feedback resistance, can regulate induction sensitivity.
Claims (2)
1. high frequency carrier condenser type elevator touch button, constitute by metal sensing chip, button housing and printed circuit board (PCB), described printed circuit board (PCB) is provided with high frequency carrier capacitor type touch switch circuit, be provided with an input and an output in the described high frequency carrier capacitor type touch switch circuit, it is characterized in that: described metal sensing chip is arranged on the surface of described button housing, described printed circuit board (PCB) is arranged in the button housing, and the metal sensing chip is electrically connected with the input of high frequency carrier capacitor type touch switch circuit.
2. high frequency carrier condenser type elevator touch button as claimed in claim 1 is characterized in that: be provided with one 555 time-base integrated circuit and feedback resistance in the described high frequency carrier capacitor type touch switch circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202126545U CN201557101U (en) | 2009-12-07 | 2009-12-07 | High-frequency carrier capacitance type elevator touch button |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202126545U CN201557101U (en) | 2009-12-07 | 2009-12-07 | High-frequency carrier capacitance type elevator touch button |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201557101U true CN201557101U (en) | 2010-08-18 |
Family
ID=42616790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202126545U Expired - Fee Related CN201557101U (en) | 2009-12-07 | 2009-12-07 | High-frequency carrier capacitance type elevator touch button |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201557101U (en) |
-
2009
- 2009-12-07 CN CN2009202126545U patent/CN201557101U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20111207 |