JPS59181429A - Automatic delay switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

TECHNICAL FIELD The present invention relates to an automatic delay switch comprising a delay circuit and a power control element.

[Background technology]

Conventionally, as described in Japanese Patent Application No. 57-1M3512, an automatic delay switch has been developed in which a load is turned on for a certain period of time by pressing a single button. However, depending on the application, it may be necessary to turn on the load continuously, and in such cases, it has been necessary to separately provide a wave switch or the like in addition to the I''f and push button switches in the past.

[Purpose of the invention]

The present invention was made in order to solve the above-mentioned problems, and is an automatic delay switch case that can realize both temporary on operation and continuous on operation using one wave switch. The purpose is to provide

[Disclosure of the invention]

The configuration of the present invention will be described below with reference to the illustrated embodiments. As shown in FIGS. ), and a switch base (3) is provided on the side of the operating handle (1) on which the protruding piece (2) is provided at an appropriate distance from the operating handle (f+).
It is arranged so as to be substantially perpendicular to the projecting piece (2) in the neutral position of the operation handle (1), one end is fixed to the switch base (3), and the other end is directed away from the switch base (3). Approximately at the center of the movable contactor (4) energized by
1) is provided with a curved portion (6) that the protruding piece (2) comes into contact with in the neutral position, and a fixed contact (7) facing the movable contact (6) provided at the other end of the movable contact (4). Switch base (
3), and the switch base (3) is installed in the direction from the curved part (5) of the movable contact (4) toward both ends of the movable contact (4).
A pair of inclined surfaces inclined in a direction away from +8+ +9
1 is provided with an inclination such that the movable contact (6) and the fixed contact (7) come into contact with each other by sliding the projecting piece (2) along each inclined surface (sl (91). (9) is provided with a bent part (10) that engages with the protruding piece (2), and a bidirectional power control element (to) is connected in series between the AC power source 0) and the load θ. When the switch SW consisting of the fixed contact (7) and the movable contact (6) is turned on, the power control element 03 is fully turned on, and the power control element 03 is turned on after a predetermined time has elapsed after the switch SW is turned off. 03 is provided with a delay circuit 04). The main body of the automatic delay switch consists of a body Q~ and a cover 〇〇, and the cover aQ is fixed to the body α~ by an assembly frame 07). At the bottom of the body 0L, a connection terminal α barrel, a locking spring 0L, a release button (7), etc. are arranged. Qη is a printed circuit board on which a switch block as shown in FIG. 2 and an electronic circuit as shown in FIG. 4 are mounted. The movable contact (4) of the switch block has a curved part (6) in the center.
) is formed on both sides in the longitudinal direction, and the movable contact (6) and the fixed contact (7) can be brought into contact by seesawing the operating handle (1). The movable contactor (4) is made of a highly elastic and good conductor plate such as phosphor bronze, and its free end side is always biased in the direction away from the switch base (3). .Therefore, the operating handle f1+
is biased to be stabilized in the neutral position by the elastic restoring force of the movable contactor (4). However, Figure 3 (
When the operating handle (1) is pressed down in the direction shown by arrow A as shown in a), the protruding piece (2) slides along the inclined surface (8) of the movable contact (4), and the movable contact ( 6) and the fixed contact (7) come into contact. When the force in the direction indicated by arrow A is removed, the operating handle +1) returns to the neutral position due to the elastic restoring force of the movable contact (4), and the movable contact (6) and the fixed contact (7) are separated.

Next, as shown in FIG. 8(b), press the operating handle +11 in the direction shown by arrow B so that the protrusion (2) slides along the inclined surface (9) of the movable contact (4). The movable contact (
6) and the fixed contact (7) come into contact. A bent part (IO+) is provided at the end of the inclined surface (9), and when the protruding piece (2) is slid to the position of this bent part (10), the protruding piece (2) t
/'i It is secured to the bent part (10). Therefore, the movable contact (6) and the fixed contact (7) remain in contact with each other. Next, when the operating handle (1) is pressed in the direction shown by arrow A to disengage the engagement between the protruding piece (2) and the bent part (lO), the operating handle (+) The restoring force returns to the neutral position, and the movable contact (6) and fixed contact (7) are separated.

FIG. 4 is a circuit diagram of the delay circuit 0 used in the automatic delay switch according to this embodiment and its surroundings. A bidirectional power control element 03 such as a triac is interposed in series between the AC power source 0υ and the load 02. Ne is a neon light, which is connected to both ends of the power control element Q3 via a resistor R1, and lights up when the power control element Q3 is off. Further, ZNR is a noise prevention element made of a nonlinear resistance. (Incorporated) is a current transformer, and when switch SW is turned on, an AC voltage is generated on the secondary side of this current transformer (2). This AC voltage is a diode bridge DB.

is full-wave rectified by resistor R2 and Zener diode Z
After the voltage is clipped by D, the diode D1 (1
1- is charged to a large capacity condenser:, ++3C+. A variable resistor (C) is connected in parallel to both ends of this capacitor C1, and constitutes a time constant circuit of an electronic timer. The voltage across the capacitor C1 is applied as a reverse bias between the source and gate of the FET (e), and when this inverse j<ias is satisfied, the transistor Q is turned on, and the gate current flows through the quadratic library △ DB2. The power control element (13) becomes conductive due to the current, and the load Q is turned on.The charge in the capacitor C1 is gradually discharged through the variable resistor @, and when the reverse bias of the FETq becomes smaller, the resistor R
Current flows through transistor Q4 due to the voltage drop.
is turned on, transistor Q5 is also turned on, the charge in capacitor C1 is rapidly discharged, and FET (c) is finally turned on. As a result, the transistor Q3 is turned off, and the thyristor (c) is also turned off, so the power control element (13) is turned off, and the load n4 is turned off. Therefore, the load 04 is turned off after a certain period of time determined by the resistance value of the 'I'iJU resistor (c). Note that when FET■ turns on, Zener diode Z
Through Dz]-) dissector C2 is charged, transistor Q1 is turned on, transistor Q2 is turned off, the base potential of transistor Q3 is completely lowered, and the thyristor (?,
5 is to prevent careless turn-offs.

When using the automatic delay switch according to this embodiment, do not change the operation handle (1) as shown in Fig. 8(a).
When pressed in the direction shown by arrow A, the movable contact (6)
The switch SW consisting of the fixed contact (7) is turned on, and the load (14) is turned on.Then, the operating handle (1
), the operating handle (1) returns to the neutral position, turns off the switch SW, and then turns off the load for a certain period of time.
is turned on, and after a certain period of time, the load α-gong is turned off. Next, as shown in FIG. 8(b), when the operating hashidle f++ is depressed in the direction shown by arrow B, a switch S consisting of a movable contact (6) and a fixed contact +7+ (!:
W is turned on and load Q2 is turned on. In this case, even if the operating handle (1) is released, the operating handle (1) remains locked and does not return to the neutral position, so VJ of the load θ remains on. In order to turn off the load θ conflict, the operation handle (1) is suppressed in the direction shown by the arrow A to unlock the operation handle (1), which turns off the switch SW. Thereafter, after a certain period of time has elapsed, the loads θ are turned off.

In this embodiment, when the right side of the operating handle (1) is suppressed, the operating handle (1) is temporarily turned on and the operating handle (l) is turned on temporarily.
) will turn on continuously after pressing the left side of ), but if there are many uses where load 02 is turned on continuously,
In Figure 1, the movable contact (4) is on the left, the fixed contact (7
) on the right side makes it easier to use.

〔Effect of the invention〕

The present invention is constructed as described above, and includes a projecting piece projecting from the center of the operating hash in a direction substantially perpendicular to the operating hash, the center of which is pivotally supported to allow free seesaw movement. (1) The movable contact and It is sloped so that it makes contact with the fixed contact, and at the end of one slope there is a bent part that fully engages the protrusion, so when the operating handle is in the neutral position, the switch is off, and when it is operated in one direction, the switch is turned off. When it is turned on, the operating handle is locked, and when operated by another force, the switch turns on, but it is not locked to the operating handle, so the load is operated continuously, and the switch is turned on. The effect is that it can be achieved by using two operation hands: an action to turn off all the loads after a certain period of time after the off operation, and an action to turn off the load for a certain period of time after the operation handle key push suppression operation. In the present invention, the locking mechanism of the operating handle is realized by the projecting piece provided on the operating handle, the inclined surface and bent portion of the iJ moving contact that is biased in the opening direction. Therefore, the structure is extremely simple,
This has the effect of being able to be constructed at low cost.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of an embodiment of the present invention, Fig. 2 is a perspective view of the main parts of the same, Fig. 8 (a) and (b) are longitudinal sectional views for explaining the operation of the same, and Fig. 4 is It is a circuit diagram same as the above. +1) is the operation handle, (2) is the projecting piece, (3) is the switch base, (4) is the movable contact, (6) is the bending part, (6)
is a movable contact, ()) is a fixed contact, +8+ +91 is an inclined surface, (lO) is a bent part, αυ is an AC power supply, 0 is a load,
α11 force control element, α→ is a delay circuit. Agent Patent Attorney Ishi 1) Chief 70υ Figure 1 Figure 2

Claims (1)

[Claims] (1) A protruding piece is provided from the central part of the operating handle, which is pivotally supported in the central part so that it can freely see-saw, in a direction substantially perpendicular to the operating handle, and an appropriate distance from the operating handle is provided on the side where the protruding piece is provided. A switch base is arranged so as to be substantially perpendicular to the projecting piece at the neutral position of the operation handle, with one end fixed to the switch base and the other end biased in a direction away from the switch base. Provided at approximately the center of the movable contactor is a bent portion that protrudes toward the side of the switch base and that the protruding piece comes into contact with in the neutral position of the operating hand;
An identification contact that faces the movable contact provided at the other end of the movable contact is provided on the switch base, and is inclined in a direction away from the switch base from the curved part of the movable contact toward both ends of the movable contact. A pair of inclined surfaces are provided at such an angle that the movable contact and the fixed contact come into contact by sliding the projecting piece along each inclined surface, and the projecting piece is secured at the end of one of the inclined surfaces. A bidirectional power control element is interposed in series between the AC power supply and the load, and when the switch consisting of the fixed contact and the movable contact is turned on, the power control element is turned on. Automatic delay switch 0 characterized in that it comprises a delay circuit that turns off the power control element after a predetermined time has elapsed after the switch is turned off.