CN2544395Y

CN2544395Y - Domestic electric appliance remote controller with key background lighting

Info

Publication number: CN2544395Y
Application number: CN 02245632
Authority: CN
Inventors: 贺清波
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-09
Filing date: 2002-08-09
Publication date: 2003-04-09
Anticipated expiration: 2012-08-09

Abstract

An appliance remote controller with backlight key pads comprises a circuit board, a panel, key pads, and a light guiding flexible slab positioned between the bottom side of the key pads and the circuit. A plurality of luminescent diodes are distributed on thee light guiding flexible slab, the luminescent end of the luminescent diode is inserted into the light guiding flexible slab, and the electrode of the luminescent diode is connected with a controlling unit and the power source of the remote controller in series; the key pads are made of lucent material. The utility model provides backlight to the key pads of a remote controller in dark environment, and by utilizing a photoswitch; backlight is saved in bright lighting environment, thus avoiding the waste of power source. The circuit is conducted by induction switch, and a monostable trigger automatically turns off the backlighting circuit after keeping lighting for a certain time, therefore, the utility model is very easy to use.

Description

Domestic electrical equipment remote controller with button background illumination

Technical field

The utility model relates to household electrical appliance, particularly a kind of domestic electrical equipment remote controller with button background illumination.

Background technology

Existing domestic electrical equipment remote controller does not all have the button background illumination, does not see operation keys when using under the darker occasion of night or light, causes very big inconvenience to use.

Summary of the invention

The purpose of this utility model just provides a kind of domestic electrical equipment remote controller with button background illumination, uses to make things convenient for night.

The technical solution of the utility model is: comprise circuit board, panel, button, also comprise leaded light elastic plate between described button lower end and circuit board, be distributed with luminous tube thereon, the light head of this luminous tube is inserted described leaded light elastic plate, and control unit of electrode series connection of this luminous tube is connected with the power supply of remote controller; Described button is made by transparent material.

Described control unit comprises inductive switch, monostable trigger, light-operated switch, and inductive switch is connected between the trigger end and power cathode of monostable trigger, connects with described luminous tube after the output of monostable trigger is connected with light-operated switch.

Described luminous tube is LED, can be formed by a plurality of serial or parallel connections; Be embedded with sign flag at described keytop.

The utility model can be given the button background illumination of remote controller in the occasion of dark, and utilizes light-operated switch to make it not luminous under the good situation of illuminating ray, the power supply of avoiding waste.The conducting of inductive switch start-up circuit, monostable trigger can be closed lighting circuit after keeping the illumination certain hour automatically, and be very easy to use.

Description of drawings

Fig. 1 is the generalized section of part of the present utility model;

Fig. 2 is an embodiment of the utility model control circuit.

Embodiment

Referring to Fig. 1, the utility model comprises circuit board 1, panel 2, button 3 and the leaded light elastic plate 4 between described button 3 lower ends and circuit board 1, be distributed with luminous tube 5 thereon, this luminous tube 5 inserts described leaded light elastic plate 4, and the control unit 6 of connecting is connected with the power supply of remote controller; Described button 3 is made by transparent material, is embedded with sign flag 7 on its surface.

Described luminous tube 5 is LED, can be formed by a plurality of serial or parallel connections.

Referring to Fig. 2, described control unit 6 comprises inductive switch JK, monostable trigger Q, light-operated switch GK, inductive switch JK is connected between the trigger end and power cathode of monostable trigger Q, connects with described luminous tube 5 after the output of monostable trigger Q is connected with light-operated switch GK.

The course of work of the present utility model is:

By day or light when using the utility model when strong, when catching nearly (contact) inductive switch JK, monostable trigger Q is triggered and exports a high potential, and reverts to electronegative potential automatically after keeping certain hour (such as 10-20 second).During its output high potential, because light-operated switch GK is disconnection under the effect of light, so luminous tube 5 can not be lighted.

If under the darker situation of liquid evening or light, when touch sensible switch JK, make its conducting, trigger monostable tentaculum Q output high potential, GK be conducting state at this moment, and luminous tube 5 is lighted, and finishes the back in the monostable phase of Q and exports and become electronegative potential, and luminous tube 5 extinguishes.

Claims

1, a kind of domestic electrical equipment remote controller with button background illumination, comprise circuit board, panel, button, it is characterized in that: also comprise the leaded light elastic plate between described button lower end and circuit board, be distributed with luminous tube thereon, the light head of this luminous tube is inserted described leaded light elastic plate, and control unit of electrode series connection of this luminous tube is connected with the power supply of remote controller; Described button is made by transparent material.

2, the domestic electrical equipment remote controller with button background illumination according to claim 1, it is characterized in that: described control unit comprises inductive switch, monostable trigger, light-operated switch, inductive switch is connected between the trigger end and power cathode of monostable trigger, connects with described luminous tube after the output of monostable trigger is connected with light-operated switch.

3, the domestic electrical equipment remote controller with button background illumination according to claim 1 and 2 is characterized in that: described luminous tube is LED, can be formed by a plurality of serial or parallel connections; Be embedded with sign flag at described keytop.