CN2457820Y

CN2457820Y - Automaitc luminous remote controller

Info

Publication number: CN2457820Y
Application number: CN00259852U
Authority: CN
Inventors: 刘浩
Original assignee: Sichuan Changhong Electric Co Ltd
Current assignee: Sichuan Changhong Electric Co Ltd
Priority date: 2000-12-19
Filing date: 2000-12-19
Publication date: 2001-10-31
Anticipated expiration: 2010-12-19

Abstract

The utility model discloses an automatically-luminous remote controller. The utility model comprises a conventional remote-control circuit, a trigger switch (2), a triggering control circuit (3), and a luminous circuit (1). When a user uses the utility model, the trigger switch generates a triggering signal which triggers the triggering control circuit (3) so as to output the control voltage to drive the luminous circuit to light; when a user does not use the utility model, the trigger switch does not generate the triggering signal; after a definite time, the triggering control circuit (3) does not output the control voltage which drives the luminous circuit to light. Therefore, the user can conveniently see the remote controller, and identification on the remote controller under the condition of dark light.

Description

Automatic luminous remote controller

The utility model relates to a kind of remote controller, and is particularly in use a kind of, can luminous automatically remote controller.

Remote controller extensively applies in the various household electrical appliance with its convenient, practical characteristics.But most of remote controllers do not have lighting function, and this makes when the user uses under the darker situation of night and some ambient lights very inconvenient, does not see the marking keys on remote controller and the remote controller, pushes the wrong button easily.China's utility model patent specification disclosed a kind of name and has been called TV remote controller on September 6th, 1998, publication number be 2291763 can be luminous remote controller, two is respectively equipped with power switch key and channel selecting key on the control panel of the lid of remote controller, and is respectively equipped with the infrared light emission pipe.Although this utility model remote controller inside is added with light source, just work when only turning on the power switch, thereby can't be luminous automatically when the user uses, automatically shut down light source when not using, still not very convenient in the use.

The purpose of this utility model be to provide a kind of luminous automatically in use, automatically shut down the remote controller of light source when not using, thereby be user-friendly to.

For achieving the above object, the automatic luminous remote controller of the utility model also comprises trigger switch, trigger control circuit, illuminating circuit except that the remote control circuit of routine; When the user used, trigger switch produced a triggering signal, this signal triggering trigger control circuit, and output control driven illuminating circuit is luminous; When the user did not use, trigger switch did not produce triggering signal, and after trigger control circuit was crossed certain hour, just no longer output control driven illuminating circuit was luminous.

As further improvement, the automatic luminous remote controller of the utility model also comprises an ambient light testing circuit; When ambient light was brighter, its output signal was not worked one of above-mentioned trigger switch, trigger control circuit, illuminating circuit, and remote controller can be not luminous when the user used; When ambient light was dark, the ambient light testing circuit was inoperative, and remote controller triggered luminous when the user used.

Because the automatic luminous remote controller of the utility model has trigger switch, trigger control circuit, remote controller can be luminous automatically in use to make the user, thereby make the user discern remote controller and remote controller sign easily, when not using, after remote controller is crossed certain hour, with the automatic disconnection light source, when light is strong, remote controller is not luminous, thereby has saved battery power.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail

Fig. 1 is the theory diagram of the automatic luminous remote controller of the utility model;

Fig. 2 is the automatic luminous remote controller embodiment electrical schematic diagram of the utility model.

Automatic luminous remote controller shown in Fig. 1 also comprises trigger switch 2, trigger control circuit 3 except that conventional remote control circuit (not shown), illuminating circuit 1; When the user used, trigger switch 2 produced a triggering signal, this signal triggering control circuit 3, and output one control driven illuminating circuit is luminous; When the user did not use, trigger switch 2 did not produce triggering signal, and after trigger control circuit 3 was crossed certain hour, just no longer output control driven illuminating circuit was luminous.

Fig. 2 is the automatic luminous remote controller embodiment electrical schematic diagram of the utility model, also comprise the ambient light testing circuit of forming by photodiode V1, divider resistance R1 and not gate N1 4 in this embodiment, photodiode V1, divider resistance R1 series connection, the positive termination power VCC of photodiode V1, resistance R 1 one end ground connection GND, the input of not gate N1 is received in its series connection tap.

Trigger switch 2 is mercoid switch K, and when the user used, the direction of mercoid switch K changed, and the mercury of mercoid switch K inside rolls, and makes switch be in conducting state.Mercoid switch K is connected between the input of NOR gate NA1 in the output of not gate N1 in the ambient light testing circuit 4 and the trigger control circuit 3.

Trigger control circuit comprises monostable circuit being made up of NOR gate NA1, not gate N2, peripheral capacitor C 1, resistance R 2 and as the not gate N3 of inverter.Peripheral capacitor C 1 is connected between the input of output NAND gate N2 of NOR gate NA1, the input of not gate N2 is also received power positive end VCC by resistance R 2, output returns an input that is connected to NOR gate NA1, and another input of NOR gate is received on the mercoid switch K.

Illuminating circuit is made up of PNP triode T1, base resistance R3, emitter resistance R4, R5, R6, R7 and light-emitting diode V2, V3, V4, V5.Emitter resistance R4, R5, R6, R7 one termination power anode VCC, the other end are received the anode of light-emitting diode V2, V3, V4, V5 respectively, the negative terminal of light-emitting diode V2, V3, V4, V5 is received the emitter of illuminating circuit by PNP triode T1, the grounded collector GND of PNP triode T1.

In the automatic luminous remote controller embodiment of the utility model, photodiode V1 and divider resistance R1 series connection constitute an ambient light sample circuit, resistance by suitable selection divider resistance R1, the threshold values that just can remote controllers ambient light be detected, the ambient light brightness of decision when trigger control circuit is started to control.

When ambient light was brighter, the pressure drop of photodiode V1 reduced, and after photodiode V1, divider resistance R1 dividing potential drop, the input of not gate N1 becomes high level, and the output of not gate N1 then becomes low level.When the user picks up remote controller at this moment, trigger switch K closure, not gate N1 is by mercoid switch K, and an input that makes NOR gate NA1 is a low level.When not using, power supply makes the high level that is input as of not gate N2 by resistance R 2, and the output of not gate N2 then is low level, and this low level turns back to the input of NOR gate NA1.When therefore picking up remote controller, the input of NOR gate NA1 all is a low level, and output then is high level, and capacitor C 1 two ends are high level, and monostable circuit can not be triggered, and remote controller remains non-luminous state.

Under the darker situation of night or ambient light, the pressure drop at photodiode V1 two ends increases, the input of not gate N1 becomes low level, the output of not gate N1 then becomes high level, when the user picks up remote controller at this moment, mercoid switch K closure, not gate N1 is by trigger switch K, an input that makes NOR gate NA1 is a high level, its output then is low level so, through capacitor C 1, makes not gate N2 be output as high level, this level feed-back is to another input of NOR gate NA1, make NOR gate NA1 keep low level output,, make the output resume of not gate N2 keep high level through capacitor C 1, like this, monostable circuit just is triggered, and it is exported after inverter not gate N3 is anti-phase, output low level, make PNP triode T1 conducting, thereby make light-emitting diode V2, V3, V4, V5 is luminous.

After monostable trigger-action circuit triggered, to capacitor C 1 charging, after capacitor C 1 was charged to the high level thresholding of not gate N2, it overturn power supply, output low level by resistance R 2.This level becomes high level and sees after anti-phase not gate N3 is anti-phase, PNP triode T1 is ended, thereby it is luminous that light-emitting diode V2, V3, V4, V5 are stopped.Meanwhile, the output of not gate N2 feeds back to the input of NAND gate NA1, makes it be output as high level.Because transition can not take place capacitor C 1 both end voltage, capacitor C 1 will return to the state when triggering by resistance R 2, power supply discharge.Fluorescent lifetime, recovery time are by resistance R 2, capacitor C 1 decision.Suitably adjust the value of resistance R 2 and capacitor C 1, just can accurately control the temporary steady-state residence time of monostable flipflop, thereby reach the length of the each fluorescent lifetime of remote controllers.

The automatic luminous remote controller of the utility model says that structurally paster type light emitting type V2, V3, V4, V5 are installed in the centre of each button of remote controller, and button adopts transparent or semitransparent material to constitute.When paster type light emitting type is luminous, the button around light can illuminate.Photodiode V1 is installed in the front of remote controller, and opens a suitable aperture on the panel of remote controller, covers the adhesive sticker or the transparent resin material of a printing opacity above, makes external light to be received by photodiode.

Certainly, the automatic luminous remote controller of the utility model is not limited to the foregoing description, ambient light testing circuit 4 can adopt alternate manner, can substitute photodiode makeup ring environmental light testing circuit 4 to the element that light produces the electricity reaction as adopting photo resistance, phototriode and other.Trigger switch also can adopt acceleration transducer, vibrating sensor etc., and all can vibrate the element that produces the signal of telecommunication to external world.

Claims

1. an automatic luminous remote controller comprises conventional remote control circuit, illuminating circuit (1), it is characterized in that also comprising trigger switch (2), trigger control circuit (3); When the user used, trigger switch produced a triggering signal, and this signal triggering trigger control circuit (3) output control driven illuminating circuit (1) is luminous; When the user did not use, trigger switch (2) did not produce triggering signal, and after trigger control circuit (3) was crossed certain hour, just no longer output control driven illuminating circuit (1) was luminous.

2. automatic luminous remote controller according to claim 1 is characterized in that described automatic luminous remote controller also comprises an ambient light testing circuit (4); When ambient light was brighter, its output signal was not worked one of above-mentioned trigger switch (2), trigger control circuit (3), illuminating circuit (1), and remote controller can be not luminous when the user used; When ambient light was dark, ambient light testing circuit (4) was inoperative, and remote controller triggered luminous when the user used.

3. automatic luminous remote controller according to claim 1 is characterized in that described trigger control circuit (3) comprises a monostable circuit.

4. automatic luminous remote controller according to claim 2 is characterized in that described ambient light testing circuit is in series by photodiode (V1) and a resistance (R1), and trigger control circuit (3) is received in its series connection tap.

5. automatic luminous remote controller according to claim 3 is characterized in that described monostable circuit is made up of NOR gate (NA1), not gate (N2), peripheral electric capacity (C1), resistance (R2); Peripheral electric capacity (C1) is connected between the input of output NAND gate (N2) of NOR gate (NA1), and the input of not gate (N2) is also received power positive end by resistance (R2), and output returns an input that is connected to NOR gate (NA1).

6. automatic luminous remote controller according to claim 1 is characterized in that described trigger switch (2) is a mercoid switch (K).