CN2077617U

CN2077617U - High-grade touch-type delay switch with display

Info

Publication number: CN2077617U
Application number: CN 90205851
Authority: CN
Inventors: 首旭
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-04
Filing date: 1990-05-04
Publication date: 1991-05-22

Abstract

The utility model discloses a high-grade touch-type delay switch with display for public places, which is more novel than the prior art. The utility model comprises a capacitance step-down power, a monostable delay, a bidirectional controlled silicon, a luminotron display circuit, an installation panel, etc. A protective resistor is connected with a capacitance step-down circuit in series. A light emitting diode which is provided with a metal shell is not only used to display, but used as a touch plate. The light emitting diode with the metal shell is also used to fix a printed plate. The visual range at night is longer than 15 meters. The panel of 86 series is adopted, and the utility model has the advantages of strong versatility, low cost and long service life. The power consumption is 0.17W, the circuit is simple, and the configuration is beautiful. The utility model can be used to control illuminating lamps in the public places of passageways, corridors, halls, latrines, etc.

Description

High-grade touch-type delay switch with display

The utility model belongs to architectural electricity device spare, is a kind of delay switch more novel and more high-grade than prior art.

China's power tense has seriously restricted the national economic development at present.On the other hand, arbitrarily use the phenomenon of altar lamp very general, not only wasted a large amount of electric power, and desalinated people's saving consciousness, further aggravated this waste.Delay switch can prevent to use altar lamp, from me tens Chinese patents in 85 to 88 years is retrieved to show that present delay switch is divided into electronic type, air damp type, spring energy-storage formula etc.Their common weakness is: majority is used pushbutton enable, has mechanical contact, and display brightness is lower, and the life-span is shorter, uses inconvenient.Such as electronic type, push button is more general, and is touch less; Display element separates with button or touch sheet majority; Show that with neon lamp or common luminous tube brightness is lower; Common capacitor voltage-dropping power supply circuit is very unreliable, very easily damages element.

The purpose of this utility model is, proposed a kind of in aspects such as Starting mode, demonstration, power supply novelty and reliable scheme, accomplished that circuit is reliable and stable, touch and demonstration concentrate on the same light-emitting diode, common light-emitting diode of brightness ratio and neon lamp height, even daytime is also very eye-catching, any position of staff if one the contact light-emitting diode, lamp bright immediately and the time-delay go out.Because whole switch does not have any mechanical contact, the life-span is extremely long.In addition, power consumption has only 0.17W, is no more than 1.5 degree the whole year.Panel adopts widely used 86 serial national standard installation panels both at home and abroad, highly versatile.Simultaneously, circuit is simple, and cost is lower.The utility model belongs to three Wiring types.

The utility model has two accompanying drawings, and Fig. 1 is a fundamental diagram, and Fig. 2 is the panel arrangement schematic diagram, and principle is as follows:

In Fig. 1, three terminals are arranged, 1 expression live wire, 2 expression zero lines, 3 expression outputs.Live wire and zero line get access to grid (220V), and output line and zero line connect bulb.When the zero line current potential is higher than live wire, carry out step-down, current limliting, rectification, filtering and voltage stabilizing respectively by C1, R2, D2, C2, D3, form the direct voltage of 6.8～8.2V; When the live wire current potential is higher than zero line, the C1 charge discharging resisting is fallen by D1, R2.D1 is necessary, if no D1, C1 does not have and lets out electric loop, and direct voltage can not form.The effect of R1 is when having a power failure C1 to be discharged.The effect of R2 should be emphasized, in many capacity voltage dropping circuits, all not crosstalk resistances, theoretical and experiment all proves, back level rectifier diode D1, D2 and voltage stabilizing didoe D3 are damaged, and reason is that the relative power cycle of the time constant of condenser network is much smaller, if there is not R2, when running into voltage peak or higher instantaneous value, it will be directly by the suitable short circuit of C1() be added on D1～D3, cause damage.Behind the string R2, even crest voltage directly passes through C1, because of the R2 current limliting, the surge current D1～D3 of this number peace all can bear unlikely damage.When selecting element, for the wattful power amount of exhausting is reduced, R2 will choose little resistance as far as possible, can be calculated as follows: resistance (Ω)=line voltage peak value (V)/voltage stabilizing didoe reverse surge current (A), this requires D3 to select the big voltage stabilizing didoe of surge current for use, when selecting 1N5018 for use (8.2V), surge current can reach 15A.Owing to, grid power factor is had certain compensating action with the capacitance decompression power supply.

Level is formed single stabilization delay circuit by N, R3～R5, W, C3, C4 behind power circuit, forms the bidirectional triode thyristor circuit by R7, SCR.Form light emitting diode display circuit by R6, LED.Receive with two resistance R 4, R5 and to touch sheet A, its objective is to prevent just in case after resistive short, the unlikely electric shock of human body or damage N, R4, R5 value are 1～2.2M.The effect of R3 is that 2 pin that prevent N are interfered, otherwise N triggering automatically, bulb becomes attitude kept burning day and night, and value is for being 1～2.2M.When lamp does not work, the 3 pin output low levels of N, LED is luminous, and this is convenient to look in the dark terminal.When staff touched sheet metal A, N entered monostable time-delay state, 3 pin output high level, and LED goes out, and provides trigger current through R7 to SCR, the SCR conducting, output and zero line form 220V voltage, and lamp is bright.Delay time is adjusted by W, and calculating can realize arbitrary timing in 15 minutes easily by t=1.1W * C4, and C4 requires to select for use the little electrochemical capacitor that leaks electricity.As long as suitable SCR is used in the power adjustment instead, can calculate by empirical equation: P=150I, I are the controllable silicon electric current, and full load should add suitable fin.

Touch sheet metal A of the present utility model utilizes very ingeniously, and it is with the metal shell of LED and is pressed in following metal washer that packing ring is to increase to touch area.In existing technical scheme, touch sheet and normally be fixed on the installation panel separately, and separate with display device often, the fixing so normal problem that occurs is that intensity is not high, display device can only provide the Position Approximate that touches sheet.Behind the light-emitting diode with the band metal-back, not only install firmly, luminous display position touches the sheet position exactly, and can utilize the screw thread fixed printed circuit board is installed, touch end and also contact on the shell of guiding to LED with the luminous tube nut, play multiple action by the printing forme Copper Foil.In addition, this luminous tube has the optically focused effect, and is bright more many than common light-emitting diode or neon lamp, and night, visual range can reach 15 meters at least, and its specification has multiple, preferably selects red M8 of φ 5mm or M10 screw thread installing type.

If need make two or three delay switchs on same circuit board, as long as the circuit that removes power unit among the figure one is repeated 2～3 parts, power supply is public, and C1 gets 0.82 μ 400V when noting two, gets 1.2 μ 400V in the time of three, and all the other component parameters are constant.The benefit of this multiple unit delay switch is once to open the illuminating lamp of many places.

Fig. 2 is the panel arrangement schematic diagram, ratio 1:2, and (a) and (b), (c) are respectively the layout plan of one, two, three delay switch.Code name implication among the figure: the 1-installation panel, the 2-metal washer, 3-band metal-back light-emitting diode, wherein switch is more in (c), can not adorn metal washer.(a) panel 86ZB in, (b), (c) use 146ZB, above-mentioned panel is the installation panel in the national standard 86 serial electric accessories.

Advantage of the present utility model:

(1). because the electric middle device part of 86 series is domestic and international widely used product, produce delay switch, be easy to be accepted, be convenient to promote by the user with this a series of installation panel.

(2)., not only novel, high-grade with the light-emitting diode of band metal-back as touching a few recast usefulness such as the indication of end and position, printed panel be fixing, and use reliably, the life-span is long, and simplify the structure.

(3). power circuit is reliable, and Overall Power Consumption has only 0.17W, year electricity consumption 1.5 degree.

(4). element is less, and cost is lower.

Enforcement of the present utility model:

Bidirectional triode thyristor SCR of the present utility model should select for use trigger current less, and 7mA for well, should suitably increase C1 capacity if surpass with interior.The quiescent current of integrated circuit N is no more than 8mA during with 8.2V and is advisable.Live wire, zero line and output line do not allow wrong when mounted, otherwise can't operate as normal or damage element.For guarantee to use under the environment of high humidity, the printed circuit board (PCB) that welding is good should soak insulating varnish and oven dry.For guaranteeing safety, printed circuit board (PCB) the most handy one little plastics close and cover.The utility model can be used for the illuminating lamp control of public places such as corridor, corridor, hall, public lavatory.

Subordinate list 1 is the element detail list:

Subordinate list 1

Code name	Title	Model specification	Quantity	Remarks
					R1	Fixed carbon resister	0.125W2.2M	1	1.5～3.3M
R2	Fixed carbon resister	0.125W27Ω	1	22～51Ω
					R3	Fixed carbon resister	0.125W1.5M	1	1～2.2M
R4～R5	Fixed carbon resister	0.125W1.5M	2	1～2.2M
					R6～R7	Fixed carbon resister	0.125W620Ω	2	560～750Ω
W	The dress carbon-film potentiometer crouches	1～2.2M	1
					C1	CL20 type terylen electric capacity	0.47μ400V	1	0.68μ400V
C2	Electrochemical capacitor	220μ10V	1	100～300μ10V
					C3	Terylen electric capacity	0.033μ	1	0.01～0.1μ
C4	Electrochemical capacitor	100μ10V	1	47～220μ
					D1～D2	Rectifier diode	IN4001	2	IN4002
D3	Voltage stabilizing didoe	IN5018	1	2.5W8.2V
					SCR	Bidirectional triode thyristor	1～3A400V	1	Decide electric current by bulb
LED	Band metal-back luminous tube	FDR-500A	1	Red M8 of φ 5mm or M10
					N	Time-base integrated circuit	NE555	1	μA555

Claims

1, a kind of high-grade touch-type band display delayed switch that is used for the public place comprises capacitor voltage-dropping power supply circuit, single stabilization delay circuit, bidirectional triode thyristor circuit, light emitting diode display circuit and installation panel etc.It is characterized in that: string has a current-limiting resistance that is used to prevent back level rectifier diode and voltage stabilizing didoe energising impact failure in the capacitance voltage stabilizing circuit; To touching sheet A, the suppression resistor that meets a 1～2.2M is to positive source at the resistance of two 1～2.2M of trigger end string of delay circuit; Light-emitting diode is selected the band metal-back for use, utilizes screw thread to be fixed on the positive center of panel.

2, device according to claim 1 is characterized in that: the current-limiting resistance in the capacity voltage dropping circuit, should choose little resistance as far as possible, and calculating can be pressed: resistance (Ω)=line voltage peak value (V)/voltage stabilizing didoe reverse surge current (A).

3, device according to claim 1, it is characterized in that: touching sheet metal A is to utilize the shell of light-emitting diode and be pressed in following metal washer, printed circuit board (PCB) is fixed by the light-emitting diodes gas thread, and the touch end contacts with the luminous tube nut by the printed circuit board (PCB) Copper Foil to be guided on the light-emitting diodes pipe shell.

4, device according to claim 1 is characterized in that: light-emitting diode selects for use red M8 of φ 5mm or M10 screw thread to install, and installation panel is selected 86ZB or the 146ZB installation panel in the national standard 86 serial electric accessories for use.