CN210429608U

CN210429608U - Induction switch

Info

Publication number: CN210429608U
Application number: CN201921694461.8U
Authority: CN
Inventors: 何仁城
Original assignee: Shenzhen Dakeqi Technology Co ltd
Current assignee: Shenzhen Dakeqi Technology Co ltd
Priority date: 2019-01-07
Filing date: 2019-09-30
Publication date: 2020-04-28
Anticipated expiration: 2029-09-30

Abstract

The utility model provides an inductive switch, includes photoelectric pair (1), circuit board (2), support (3), and support (3) are at least one end open-ended invagination formula support, and the opening top of support (3) or the inner chamber of support (3) are installed to photoelectric pair (1), and the inside at support (3) is installed in circuit board (2). The utility model is a non-contact switch, which can effectively avoid the hidden sanitary trouble problem of the key switch in public places; and the effect of the key switch can be achieved, and a user can use the switch more safely.

Description

Induction switch

Technical Field

The utility model relates to an inductive switch.

Background

The existing key switch generally adopts a mode of reaction after finger contact or pressing; the key switch in the public place can be pressed by a plurality of people, so that public health hidden troubles are easily caused; the inductive switch only sends out a signal for opening the switch after induction, and the inductive switch is kept in an on state for a fixed time and then is in an off state; the key switch cannot be continuously turned on or off, and then is turned to another off or on state next time the key is pressed.

Disclosure of Invention

An object of the utility model is to provide an inductive switch can effectively avoid public place's key switch's health hidden danger problem.

The utility model discloses a reach a technical scheme that above-mentioned purpose adopted and be: an inductive switch comprises a photoelectric pair, a circuit board and a bracket, wherein the bracket is an inward-recessed bracket with at least one open end;

the photoelectric pair comprises at least one transmitting unit and at least one receiving unit;

the circuit board comprises a controller and a power supply; the power supply is electrically connected with the transmitting unit, the receiving unit and the controller, the receiving unit is electrically connected with the controller, and the controller is provided with a control signal output end.

Further, the controller is one of an analog circuit controller, a digital circuit controller and a microprocessor controller.

Further, the support is a U-shaped support.

Further, the photoelectric pair is an infrared light emitting and receiving unit or an ultraviolet light emitting and receiving unit.

Furthermore, the circuit board also comprises an electric switch, the power supply is electrically connected with the electric switch, and the controller is electrically connected with the electric switch.

The utility model relates to a non-contact key switch, which can effectively avoid the hidden sanitary trouble problem of the key switch in public places; and the effect of the key switch can be achieved, and the user can use the key switch more safely.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

fig. 2 is a block diagram of a preferred embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments:

as shown in fig. 1 and 2, an inductive switch includes a photoelectric pair 1, a circuit board 2, and a bracket 3, where the bracket 3 is an inward-recessed bracket with at least one open end, the photoelectric pair 1 is installed on the open top end of the bracket 3 or in the inner cavity of the bracket 3, and the circuit board 2 is installed inside the bracket 3. When the photoelectric pair 1 is arranged in the inner cavity of the bracket 3, the photoelectric emission can be conveniently blocked by foreign objects; preferably at the front end of the inner cavity.

The photovoltaic pair 1 comprises at least one transmitting unit 11, at least one receiving unit 12. The photoelectric pair 1 is an infrared light transmitting and receiving unit or an ultraviolet light transmitting and receiving unit.

In this embodiment, the photoelectric pair 1 employs an infrared light transmitting and receiving unit. The infrared transmitting unit adopts an LED transmitting tube of 850 nanometers, and the infrared receiving unit adopts an LED receiving tube of 850 nanometers; or the infrared transmitting unit adopts a 940 nm LED transmitting tube, and the infrared receiving unit adopts a 940 nm LED receiving tube.

For use in an elevator, the circuit board 2 includes a controller 21, a power supply 24; the power supply 24 is electrically connected to the transmitting unit 11, the receiving unit 12 and the controller 21, the receiving unit 12 is electrically connected to the controller 21, and the controller 21 is provided with a control signal output end. The inductive switch outputs the control signal.

For a general scenario, the circuit board 2 includes a controller 21, an electric switch 23, a power supply 24; the power supply 24 is electrically connected to the transmitting unit 11, the receiving unit 12, the controller 21, and the electric switch 23, the receiving unit 12 is electrically connected to the controller 21, and the controller 21 is electrically connected to the electric switch 23.

The controller 21 receives and recognizes the electrical signal from the pair of electro-optical devices and then sends a signal to control the opening or closing of the circuit controlled by the electrical switch 23. The controller 21 is one of an analog circuit controller, a digital circuit controller, and a microprocessor controller. In this embodiment, the controller 21 is a microprocessor controller.

In the present embodiment, the electric switch 23 is a relay.

The working principle is as follows: when the light emitted by the infrared emitting unit 11 in the photoelectric pair 1 is blocked, the infrared receiving unit 12 cannot receive the generated light, a photoelectric signal is generated, the photoelectric signal is transmitted to the controller 21, the controller 21 reacts and sends a signal to enable the electric switch 23 to be in an on or off state, and when a finger or an object is taken away, the infrared receiving unit 12 receives the infrared signal again, but does not generate the signal; when the light of the infrared transmitting unit 11 is blocked again, the infrared receiving unit 12 cannot receive the generated infrared light, and a photoelectric signal is generated again, so that the electric switch 23 is in an off or on state.

When in use, the utility model can be installed in the wall body, and the open end is exposed out of the wall body. Or can be installed outside the wall body. To perform the switching action, the user inserts a finger or other object into the opening of the bracket 3 to trigger the activation switch to perform the action.

The utility model is a non-contact switch, which can effectively avoid the hidden sanitary trouble problem of the key switch in public places; the effect of key switch can be achieved, and the switch can be used more safely by a user; the utility model discloses can be applied to the adjustment and circulate the gear, or produce the switching signal and supply to other equipment, also can be a switch combination, for example just be a keypad.

Claims

1. An inductive switch, comprising: the photoelectric detector comprises a photoelectric pair (1), a circuit board (2) and a support (3), wherein the support (3) is an inward-recessed support with at least one open end, the photoelectric pair (1) is arranged at the top end of the opening of the support (3) or in the inner cavity of the support (3), and the circuit board (2) is arranged in the support (3);

the photoelectric pair (1) comprises at least one transmitting unit (11) and at least one receiving unit (12);

the circuit board (2) comprises a controller (21) and a power supply (24); the power supply (24) is electrically connected with the transmitting unit (11), the receiving unit (12) and the controller (21), the receiving unit (12) is electrically connected with the controller (21), and the controller (21) is provided with a control signal output end.

2. The inductive switch of claim 1, wherein: the controller (21) is one of an analog circuit controller, a digital circuit controller and a microprocessor controller.

3. The inductive switch of claim 1, wherein: the support (3) is a U-shaped support.

4. The inductive switch of claim 1, wherein: the photoelectric pair (1) is an infrared light transmitting and receiving unit or an ultraviolet light transmitting and receiving unit.

5. The inductive switch of claim 1, wherein: the circuit board (2) further comprises an electric switch (23), the power supply (24) is electrically connected with the electric switch (23), and the controller (21) is electrically connected with the electric switch (23).