CN2130008Y

CN2130008Y - Touching type voltage regulating switch

Info

Publication number: CN2130008Y
Application number: CN 92214893
Authority: CN
Inventors: 张建
Original assignee: Chongqing Plastic Factory No16
Current assignee: Chongqing Plastic Factory No16
Priority date: 1992-07-04
Filing date: 1992-07-04
Publication date: 1993-04-14
Anticipated expiration: 2002-07-04

Abstract

The utility model discloses a touching type voltage regulating switch, comprising a shell, a touch pole, an overload protector, a direct current supply circuit, a signal input circuit, a control circuit and a controlled silicon executive circuit. The touching type voltage regulating switch is characterized in that an absorbing circuit and an indicating circuit are connected with the controlled silicon executive circuit in parallel. Because of the adoption of the absorbing circuit, the influence from the rate of the voltage rise to the controlled silicon can be restrained. So a voltage regulating switch can not only be used as the resistive load such as the light adjusting of the lamp, but can be used as the inductive load such as the variable voltage speed control of an electric fan. Because of the indicating circuit, the magnitude of the voltage regulation can be understood visually. The utility model has the advantages of dapper and beautiful structure, simplicity, safe use and convenience.

Description

Touching type voltage regulating switch

The utility model relates to a kind of touch alternating electron tap changer.

Have mutually and had the patent No. in the technology and be respectively 90212415.3,88215900.3, the touch dimmer switch that is used for light fixture, its operation principle are to make the human-induced signal enter circuit and go to control the silicon controlled switching and the angle of flow reaches the purpose of light modulation and open and close after processing of circuit by touching sheet.Because controllable silicon will be subjected to the influence of voltage build-up rate; when voltage build-up rate is too high; easily cause controllable silicon out of control; and above-mentioned tap changer is not owing to take protection, absorption measure; to the load request height, can only be used for resistive load, can cause then that controllable silicon is out of control to make the switch misoperation because of voltage build-up rate is too high if be used for inductive load; thereby it can only be used for the incandescent lamp light modulation, and can not be used for the electric fan speed governing.In addition, above-mentioned touch dimmer switch does not have pressure regulation to show, can not reflect the height of output voltage intuitively.

The purpose of this utility model is to provide a kind of can be used for resistive load, can be used for the touch tap changer of inductive load again.

The purpose of this utility model is achieved in that to be that it comprises housing; touch the utmost point; overload protective device, DC power-supply circuit, signal input circuit; control circuit; the controllable silicon executive circuit, wherein the utmost point is touched in the contact of the input of signal input circuit, and output is connected with the input of control circuit; the triggering signal of control circuit connects the control end of controllable silicon executive circuit, is parallel with on the controllable silicon that is characterised in that executive circuit of the present utility model to absorb circuit and pressure regulation indicating circuit.

Said structure of the present utility model can provide specific embodiment by accompanying drawing and further specify.

The utility model has following accompanying drawing:

Accompanying drawing 1 is a circuit structure diagram of the present utility model;

Accompanying drawing 2,3 is respectively embedded structural front view of the utility model and sectional view.

Referring to Fig. 1, circuit of the present utility model consists of the following components: overload protective device is protective tube BX, in order to avoid damaging circuit because of the electrical appliance short circuit; Resistance R ₁, R ₂, rectifier diode D, voltage-stabiliser tube DW and filter capacitor C ₂Form DC power-supply circuit, R ₇, R ₈Form signal input circuit, utmost point M is touched in its signal input part contact, and output is connected with control circuit, and its effect is to isolate civil power, induction human body signal; Resistance R ₃, R ₆, C ₃, C ₄, integrated circuit (IC) constitutes control circuit, the control silicon controlled break-make and the angle of flow; Controllable silicon TRIAC is an executive circuit, can be exported different voltage of height and disconnection or connect the power supply of load to load by it.C ₁, R ₄Be connected in parallel on controllable silicon TR after the series connection On the AC, constitute the absorption circuit, its effect is to reduce rate on the voltage at controllable silicon two ends, and circuit also can be worked safely and reliably when the antijamming capability of raising circuit and load were inductive load; Neon bulb N and resistance R ₅Be connected in parallel on TRIAC after the series connection and go up constitute indicating circuit, indication output voltage high and low, the having or not of the break-make of switch and civil power.

The operation principle of foregoing circuit is such: after the energized, the 220V alternating current is through 2A protective tube BX, voltage stabilizing didoe DW, rectifier diode D and R ₁, R ₂At filter capacitor C ₂Two ends get a stable DC power voltage supply road and use.When touching M with hand, the human-induced signal is through R ₇, R ₈Enter integrated circuit (IC), because R ₇, R ₈Resistance bigger, so can not cause electric shock because of touching M.Integrated circuit (IC) is that model is the special use touch pressure regulation circuits for triggering of LS7232, its function is: when hand to touch M less than time of 0.4 second, circuit is then made switch, if the touch time was greater than 0.4 second, then do pressure regulation, the controllable silicon output voltage will be from high to low, circulates from low to high to finish until touching again, and the controllable silicon output voltage will be stabilized in a value and upward also be stored in the integrated circuit (IC) automatically, when touching, voltage can be set up on this value automatically again.Resistance R ₅, the indicating circuit that neon bulb N constitutes is when energized and electrical appliance, and neon bulb N is luminous, when touch M makes circuit enter the pressure regulation state, the high more neon bulb of electrical equipment both end voltage is dark more, i.e. the brightness meeting of neon bulb descends with the rising of electrical equipment both end voltage, thereby indicates the height of electrical appliance both end voltage.

Referring to Fig. 2,3, touch utmost point M and neon bulb indicator light N are installed in case panel (1) surface among the figure, the circuit board of aforementioned circuit (6) is by circuit board pillar (5), and circuit board fixed screw (7) is installed in the terminal box (8), and circuit is connected with power supply or load by external connection (9).Whole housing is fixed by the installing hole of screw (2) being installed and reserve and is constituted embedded structure.

Compare with prior art, the utility model has following characteristics:

1, volume is small and exquisite, and good looking appearance, this touch tap changer are designed to 86.114,112 serial concealed wire forms, the band socket-type is arranged and be not with socket-type, thereby very be fit to Modern Family, and attractive in appearance, luxurious, the clean occasion such as office is used.

2, be added with absorbing circuit, can suppress the climbing of voltage, both can be used for the touch light modulation of desk lamp etc., can be used for safely and reliably the electric fan speed governing again.

3, have pressure regulation indication, neon bulb is both as the speed governing indication, double as civil power indication again, and also respective change of the brightness of neon bulb because neon bulb is in touch sheet center, also can makes things convenient in the dark and find the touch sheet exactly when output voltage changes.Doing indication with neon bulb, to have a volume little, power consumptive province, the characteristics that brightness is soft.

Claims

1, a kind of touch tap changer, comprise housing, touch utmost point M, overload protective device BX, DC power-supply circuit, signal input circuit, control circuit, the controllable silicon executive circuit wherein touches utmost point M by the signal input circuit connection control circuit, control circuit comprises that model is the dedicated trigger integrated circuit (IC) of LS7232, the control end of its output termination controllable silicon TRIAC; Of the present utility model being characterised in that on executive circuit controllable silicon TRIAC is parallel with by capacitor C ₁, resistance R ₄The absorption circuit that series connection constitutes, and by neon bulb N and resistance trimming R ₅The indicating circuit that series connection constitutes.