CN201789481U - New Time Delay Switch - Google Patents

Abstract

A novel delay switch comprises a rectifying filtering module, a spring press-button, a thyristor, a capacitor, a current-limiting resistor, a solid state relay and a shell, wherein two input ends of the rectifying filtering module are respectively connected with a live wire and a neutral wire, one output end is divided into two branches so as to be connected with the capacitor and the solid state relay respectively, the other output end is firstly connected in series with the thyristor and then divided into two branches: one branch is connected with the capacitor, and the other branch is connected with the solid state relay after being connected in series with the current-limiting resistor; two main circuit pins of the solid state relay connect a controlled electric lamp into a power grid via a conducting wire; and the spring press-button is connected in series between the control end and the positive pole of the thyristor. The novel delay switch provided by the utility model not only can stably play the role of a traditional delay switch, but also has simple structure, convenience in design and maintenance, and lower development cost.

Description

New time delay switch

technical field

The utility model relates to an electric light switch, in particular to a novel delay switch with simple structure. the

Background technique

As a switch that saves power resources and is easy to use, the time-delay switch has been widely used in stairwells, toilets and other places. However, the current time-delay switch is composed of a series of components such as triggers, and its structure is relatively complicated. The design layout of the parameters, the maintenance of the switch, and the development cost are all unfavorable. the

Contents of the invention

In view of the above problems, the purpose of this utility model is to provide a new type of time delay switch, which can not only stably play the role of the traditional time delay switch, but also has a simple structure, convenient design and maintenance, and low development cost. the

The technical scheme adopted by the utility model to solve its technical problems is: the novel delay switch includes a rectification filter module, a spring button, a thyristor, a capacitor, a current limiting resistor, a solid relay, a housing, and two inputs of the rectification filter module The terminals are respectively connected to the fire wire and the neutral wire, and one output terminal is divided into two circuits, respectively connected to the capacitor and the solid state relay, and the other output terminal is first connected to the thyristor in series, but divided into two circuits, one is connected to the capacitor, and the other is connected in series. Connect the solid relay after the current limiting resistor, the two main circuit pins of the solid relay connect the controlled lamp to the power grid through wires, and the spring button is connected in series between the control terminal of the thyristor and the anode . the

In the above-mentioned new delay switch, the rectification and filtering module first converts the AC voltage into a DC voltage and leads it between the anode and the cathode of the thyristor. When the spring button is pressed by the hand, the control terminal has the anode potential, which makes the thyristor switched on. After the spring button pops up and disconnects, the thyristor is still on. At this time, the capacitor is charged, and the solid relay lights up the lamp. After the capacitor is fully charged, the current in the thyristor is lower than the cut-off current, and the thyristor is disconnected. At this time, the capacitor flows to the solid state. The relay supplies power. When the capacitor is fully discharged, the relay disconnects the main circuit where the lamp is located, and the lamp goes out. The delay time of the lamp is the sum of the charging and discharging time of the capacitor. the

As mentioned above, the new time-delay switch can not only play the role of the traditional time-delay switch stably, but also has a simple structure, convenient design and maintenance, and low development cost. the

Description of drawings

Fig. 1 is the working circuit diagram of the novel delay switch. the

In the figure: 1, rectification and filtering module; 2, spring button; 3, control terminal; 4, thyristor; 5, capacitor; 6, current limiting resistor; 7, solid state relay; 8, housing; 9, lamp. the

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

In the embodiment shown in the accompanying drawings, the novel time delay switch includes a rectification and filtering module 1, a spring button 2, a thyristor 4, a capacitor 5, a current limiting resistor 6, a solid state relay 7, a housing 8, and the rectification and filtering module 1 The two input terminals are respectively connected to the fire wire and the neutral wire, and one output terminal is divided into two circuits, which are respectively connected to the capacitor 5 and the solid state relay 7, and the other output terminal is connected to the thyristor 4 in series first, but is divided into two circuits, and one circuit is connected to the solid state relay 7. The capacitor 5 is connected in series with the current limiting resistor 6 and then the solid relay 7 is connected. The two main circuit pins of the solid relay 7 connect the controlled lamp 9 to the power grid through wires. The thyristor 4 The spring button 2 is connected in series between the control terminal 3 and the anode. the

In the above novel time delay switch, the rectification and filtering module 1 is a combination of a bridge rectification module and a filter capacitor. the

In the new delay switch mentioned above, the rectifying and filtering module 1 first converts the AC voltage into a DC voltage, and leads it between the anode and the cathode of the thyristor 4. When the spring button 2 is pressed by hand, the control terminal 3 has an anode potential, which makes the thyristor 4 4 is turned on, and after the spring button 2 pops up and turns off, the thyristor 4 is still in the on state. At this time, the capacitor 5 is charged, and the solid relay 7 lights up the lamp 9. After the capacitor 5 is fully charged, the current in the thyristor 4 is lower than the cut-off state. current, the thyristor 4 is disconnected, at this time, the capacitor 5 supplies power to the solid relay 7, and when the capacitor 5 is fully discharged, the relay disconnects the main circuit where the lamp 9 is located, the lamp 9 goes out, and the delay time of the lamp 9 charges the capacitor 5 summed with the discharge time. the

Claims (2)

1. novel delay switch, comprise rectification filtering module (1), spring button (2), thyristor (4), capacitor (5), current-limiting resistance (6), solid state relay (7), housing (8), it is characterized in that: two inputs of described rectification filtering module (1) start to exchange fire respectively line and zero line, an output is divided into two-way, connects described capacitor (5) and solid state relay (7) respectively, another output is serial connection described thyristor (4) earlier, yet be divided into two-way, the one tunnel connects described capacitor (5), and another road connects described solid state relay (7) after being connected in series described current-limiting resistance (6) again, (7) two main circuit pins of described solid state relay are linked electrical network by lead with controlled electric light (9), are connected in series described spring button (2) between the control end (3) of described thyristor (4) and the anode.

2. novel delay switch according to claim 1 is characterized in that: described rectification filtering module (1) is the combination of a bridge rectifier module and a filtering capacitor.

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