CN2133990Y

CN2133990Y - Multifunctional electronic pull switch

Info

Publication number: CN2133990Y
Application number: CN 92232213
Authority: CN
Inventors: 李松
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-02
Filing date: 1992-09-02
Publication date: 1993-05-19
Anticipated expiration: 2002-09-02

Abstract

The utility model discloses a multifunctional electronic pull switch, belonging to a lighting lamp switch device. The time delay switch circuit of a controlled silicon is additionally provided with an on-off state display circuit. A trigger switch K is a pull switch obtained through remanufacturing ratchets and pawls, and the pull switch controls the degree of pull strings being pulled. The K is provided with a closed lock state and a closed unlock state; when the K is locked in a closed state, the lamp is lit up, a light emitting diode (LED) is lit up simultaneously, and the switch is in a long-term lighting state; when the K is closed and disconnected, the lamp is lit up, the LED is not lit up, and the switch is in a time delay turn-off state.

Description

Multifunctional electronic pull switch

The utility model belongs to the lighting lamp switching device.

In order to solve place " altar lamp " waste problems such as corridor, corridor, toilet, multiple electronic switch with delay cut-off function has appearred in recent years, they all are made up of trigger switch and control circuit two large divisions basically, in order to meet traditional use habit, trigger switch can adopt stay-supported, but in order to make both delay cut-offs of switch, conducting for a long time is to satisfy different lighting requirements again, trigger switch also can adopt the pulling switch that also can not lock closed attitude both lockable, and this pulling switch has special pawl-and-gearing.Chinese patent application 92209411.X discloses a kind of " multifunction electronic power down switch ", in the controlling organization of this switch, also has a little ratchet on the ratchet between the adjacent two big ratchets, ratchet is embedded between the next big ratchet that little ratchet and contrary ratchet rotation direction look, in the ratchet rotation process, if contact is stuck on the big ratchet, then contact and ratchet are off-state, if contact is stuck on the little ratchet, then contact and ratchet are the connection attitude, so only need the degree of control pulling backguy rope, switch is in closed attitude locks or do not lock.Include rectification circuit in the control circuit of this switch, RC delay circuit, reverse-blocking tetrode thyristor circuit etc.Though this switch function is more, can satisfy multiple lighting requirement, but When lit, can not indicating switch, to be in the time delayed turn-off state still be long-term conducting state, the feeling when user can only be with backguy judge, is not easy to realize the illumination functions of expecting like this.In addition, this switch is owing to have instant closing function, so circuit is complicated, cost is higher.

The purpose of this utility model is exactly that a kind of stay-supported multifunctional electronic switch that can use light-emitting component indicator cock state of living in will be provided, and such switch can be realized delaying time and turn off the light, and can realize long-term illumination again, easy to use, circuit is simpler, and cost is lower, is convenient to popularize.

In order to achieve the above object, the technical solution of the utility model employing is: increased by R on the basis of the rectification circuit that constitutes common controllable silicon delay switch, RC delay circuit, reverse-blocking tetrode thyristor circuit ₁, R ₂, D ₅, C ₇, the on off state indicating circuit that constitutes of LED, wherein R ₁A termination rectification after the anodal A point of DC power supply, the positive pole of the other end and LED joins, the negative pole of LED meets the negative pole E point of DC power supply after the rectification, R ₂The positive pole of a termination LED, the other end and C ₁Positive pole and diode D ₅Negative pole join C ₁Negative pole meet power cathode E point, D ₅Positive pole meet D ₆Anodal B point.When controllable silicon SCR is in the pass off-state (when lamp goes out), the pulse dc power after the rectification passes through R ₁Provide electric current to LED, make LED luminous, play the effect of indicator cock position in the dark; When SCR is in conducting state (when lamp is bright), because SCR control electrode current is less, each conducting all needs to add one " breakover voltage " on its anode, its value is about the parameter that 10V～20V(depends on SCR), therefore containing an amplitude in the voltage waveform that A is ordered is 10V～20V frequency poop composition identical with DC pulse frequency after the rectification, and this pulse can not make luminous (because the R of LED when K disconnects ₁Resistance is very big), when K is closed, will pass through D ₅, R ₂Provide electric current to make LED luminous to LED.C ₁At this and D ₅When matching, play the change pulse duration, strengthen the effect of the average luminescence brightness of LED, in addition D ₅Also play when K disconnects, stop the R that flows through ₁Electric current to C ₂The effect of charging.This shows that the on off state indicating circuit can be when lamp be bright, according to the bright of LED or go out and indicate that switch is in attitude kept burning day and night (K closed-lock) or time-delay automatically shuts down attitude (not locking after the K closure), and can when lamp goes out, play position of the switch indicative function.

Trigger switch uses the pulling switch that also can not lock closed attitude both lockable.On pulling switch, cover out an aperture and be used to install LED, circuit board is made circular arc, be installed in the circular groove of pulling switch base back surface, carrying out circuit by lead with trigger switch and LED is connected, so just constituted the utility model stay-supported multifunctional electronic switch, be characterized in:

1, function is many.Can realize that time-delay is turned off the light automatically and long-term illumination, can satisfy different lighting requirements.

2, adopt the stay-supported operation, meet the use habit of conventional pull wires switch.

3, easy and simple to handle.Utilize the on off state indication LED can determine easily and the selector switch operating state.

4, easy for installation.Circuit board and pulling switch combine as a whole, and being connected with external circuit is that single line is gone into single line and gone out, and need not change existing illuminating line and just can directly replace existing pulling switch.

5, cost is low.If commercialization production, cost only 2～3 yuan be convenient to popularize and promote.

Below in conjunction with accompanying drawing the utility model embodiment is elaborated.

Fig. 1 is the control circuit schematic diagram.

Fig. 2 is a pulling switch controlling organization axial view.

Fig. 3 is the ratchet schematic diagram of pulling switch.

In the control circuit schematic diagram of Fig. 1, R ₁, R ₂, C ₁, D ₅, LED forms on off state indicating circuit, D ₁-D ₄Constitute bridge rectifier, load (electric light) is in series with the ac input end of rectification circuit, and the on-off of dc pulse current after the control rectification is with regard to opening or closing of may command electric light.D ₆, C ₂, R ₃, C ₃, SCR constitutes the controllable silicon automatic power-down circuit of delaying time, trigger switch K cross-over connection is in A, B 2 points.

The best value of each element is in the circuit: R ₁=390K, R ₂=330 Ω, R ₃=1M, C ₁=10 μ/25V, C ₂=100 μ/25V, C ₃=1000P, D ₁-D ₆Adopt the 1N4007 diode, controllable silicon SCR select for use 1A400V as MRC1006, trigger current should be less than 10 μ A, LED selects the high light-emitting diode of luminous efficiency for use.By the switch that above data are made, measured result is: delay time 2 ' 00-3 ' 00 maximum load power 60W.

At pulling switch controlling organization shown in Figure 2 vertically in the view, 6 big ratchets 2 are arranged on the ratchet 1, also has a clavula tooth 3 between the adjacent two big ratchets, angular distance between the adjacent two big ratchets equals 60 °, the angle that backguy rope ratchet turns over is identical with spurring fully, on the metal pallets wheel 46 ratchets 5 are arranged, the shape and size of ratchet guarantee that ratchet can be embedded between the next big ratchet 2 that clavula tooth 3 and contrary ratchet rotation direction look just, in clavula tooth 3 and ratchet 5 joints, clavula tooth 3 is higher than ratchet 5, to guarantee that clavula tooth 3 can be blocked by contact 6, contact 6 and the crimping of ratchet elasticity, in the ratchet rotation process, contact 6 can be realized contacting and disconnecting with ratchet 5 successively.In use if spur a backguy (move the backguy rope to the end, hear one loud " ticking " sound loose one's grip again) fully, contact 6 and disconnection again after ratchet 5 just can be realized contact once, contact 6 are stuck in the next one greatly on the position of ratchet 2; If in pulling backguy process, treat that backguy rope stroke is more than half, promptly loose one's grip but (can hear faint " a ticking " sound) also not on earth, then contact 6 will be stuck on the position of next clavula tooth 3, and keep in touch with ratchet 5, promptly realize closed-lock.

The pawl wheel shape as shown in Figure 3, available scale copper is stamped to form.

In order to save the mould investment, can utilize the base and the loam cake of conventional pull wires switch, at the last aperture that covers out, LED is placed in the hole, control circuit is contained on the circular arc circuit board, the monoblock circuit board places in the circular groove of pulling switch base back surface, and by lead and switch, LED carries out circuit and connects.

Claims

1, a kind of stay-supported multifunctional electronic switch comprises that one can lock the pulling switch that also can not lock by what base, loam cake, backguy rope, spring, ratchet [1], pawl wheel [4], backguy plectrum [7], contact [6], spacer, rotating shaft constituted to closed attitude; A control circuit of being made up of rectification circuit, RC delay circuit, reverse-blocking tetrode thyristor circuit is characterized in that: also comprise one in the control circuit by R ₁, R ₂, C ₁, D ₅, the on off state indicating circuit formed of LED, wherein R ₁A termination rectification after the anodal A point of DC power supply, the other end links to each other with the positive pole of LED, the negative pole of LED links to each other R with power cathode E point ₂The positive pole of a termination LED, the other end and C ₁Positive pole and diode D ₅Negative pole join C ₁Negative pole meet power cathode E point, D ₅Positive pole meet D ₆Anodal B point.

2, stay-supported multifunctional electronic switch according to claim 1, it is characterized by: cover on the pulling switch and have an aperture, LED is installed in the hole, control circuit is installed on the circular arc circuit board, the monoblock circuit board places in the circular groove of pulling switch base back surface, carries out circuit by lead with switch and LED and is connected.