CN2087413U

CN2087413U - Luminous device with auto-controlling function

Info

Publication number: CN2087413U
Application number: CN 90219969
Authority: CN
Inventors: 赵宏生; 赵鹏生
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-11-26
Filing date: 1990-11-26
Publication date: 1991-10-23

Abstract

The utility model relates to a luminous device with auto-controlling function which has the eye-catching action in the dark and belongs to the switch electric appliance technical field. The utility model is characterized in that the capacitor C1 and C2 are connected at the input terminal of the rectificate bridge stack L in series. A photosensitive resistor M, a luminous diode D and a voltage-stabilizing tube W are connected at the output terminal of the rectificate bridge stack L in parallel. The luminous device with auto-controlling function is irrelevant with the on-off of the switch when the luminous device with auto-controlling function is used for the switch to display the position of the switch. The luminous device with auto-controlling function has strong versatility and can also be independently used for the technical field out of the switch.

Description

Luminous device with auto-controlling function

The utility model is a kind of indicating device that plays eye-catching effect in the dark, belongs to the technical field of device for switching.

In daily life, when people look on the bright side of things lamp in night or light bad stair, passageway and room, often can not find switch, especially want to find mains switch difficult matter really in more not familiar place.At above-mentioned situation, now existing people is to disclose a kind of Luminous hint switch among the CN89205245 at number of patent application, though this switch only needs a light-emitting diode and a resistance just can constitute luminous prompt facility, but what its light-emitting diode and light fixture adopted is the mode of being connected in series, after disconnecting, switch not only also have power consumption to exist in the light fixture, and no matter night in daytime its light-emitting diode all luminous, not only power consumption, and exist short shortcoming in useful life.

The utility model is at the problems referred to above, designed a kind ofly to be connected in parallel with light fixture, and circuit is simple, and power consumption is minimum, and long service life can be applied independently in a kind of automatic control Luminous device in field beyond the switch again.

Technical solution is to utilize common electronics discrete component, adopt a kind of circuit connecting mode of novelty to realize, principal character is capacitor C 1, C2 are series at the input of rectifier bridge heap L, and photo resistance M, light-emitting diode D and voltage-stabiliser tube W are parallel to the output of rectifier bridge heap L.

The utility model advantage compared with prior art is, with the automatic control Luminous device be contained in switch use when the display switch position and the break-make of switch irrelevant, only relevant with light and brightness, the light-emitting diode net cycle time is shorter, comparative lifetime is longer.In addition, this automatic control Luminous device highly versatile, applied widely can be applied independently in the field beyond the switch, such as occasions such as the noctilucence indication of electronic clock, bell button, the indications of lockhole position.

Fig. 1 is circuit theory diagrams of the present utility model.

Fig. 2 is the circuit theory diagrams of embodiment 2.

Fig. 3 is the printing plate figure of corresponding diagram 1.

Fig. 4 is a kind of three-dimensional appearance schematic diagram of the present utility model.

Describe details of the present utility model and embodiment in detail below in conjunction with accompanying drawing.

Referring to Fig. 1, the utility model utilizes civil power 220V to make power supply, capacitor C 1, C2 is series at the input of rectifier bridge heap L, play the step-down metering function, C1, C2 can select the paper valency electric capacity of 160V/0.05 μ f～250/0.1 μ f for use, with photo resistance M, light-emitting diode D and voltage-stabiliser tube W are parallel to the output of rectifier bridge heap L, its effect is, when the bright resistance of photo resistance in daytime M hour, light-emitting diode D is produced bigger shunting action, and then light-emitting diode D is not luminous, when the resistance in the dark of photo resistance at night M especially when big (being similar to open circuit), the electric current of light-emitting diode D of flowing through increases lumination of light emitting diode.Voltage-stabiliser tube W can select the 3V voltage-stabiliser tube for use among the embodiment, and photo resistance M selects bright resistance≤2K Ω for use, resistance in the dark 〉=1M Ω, and light-emitting diode D selects common BT pipe for use.

Fig. 2 is the electrical schematic diagram of the utility model embodiment 2, and capacitor C 1, C2 are series at the input of rectifier bridge heap L, play the step-down metering function, photo resistance M and light-emitting diode D are connected to the output of rectifier bridge heap L respectively by triode T1, T2, when the bright resistance of photo resistance in daytime M hour, T1 manages conducting, the T2 pipe ends, light-emitting diode D does not work, night is dark comes temporarily, and when photo resistance M resistance in the dark increased to certain resistance, the T1 pipe ended, the T2 pipeline is logical, and then light-emitting diode D is luminous.

Fig. 3 is the printing plate figure among the embodiment 1, and Fig. 4 is its three-dimensional appearance schematic diagram, and overall dimensions length * wide * height is respectively 33 * 23 * 18mm.

Claims

1, a kind of automatic control Luminous device is made up of common insulation crust and electronics discrete component, it is characterized in that capacitor C 1, C2 are series at the input of rectifier bridge heap L, and photo resistance M, luminous tube D and voltage-stabiliser tube W are parallel to the output of rectifier bridge heap L.