US3794888A - Remote control switch circuit - Google Patents

Remote control switch circuit Download PDF

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Publication number
US3794888A
US3794888A US3794888DA US3794888A US 3794888 A US3794888 A US 3794888A US 3794888D A US3794888D A US 3794888DA US 3794888 A US3794888 A US 3794888A
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US
United States
Prior art keywords
diodes
coil
remote control
series
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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English (en)
Inventor
T Hisano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Application granted granted Critical
Publication of US3794888A publication Critical patent/US3794888A/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet

Definitions

  • ABSTRACT A remote control switch circuit for switching on and off an associated load with a remote control relay operated by one of a plurality of remote control switches which is actuated independently of others.
  • the circuit comprises a series circuit of a remote load section including the remote control relay connected to the load and normally closed and normally opened contacts connected in series through a pair of reversely connected diodes to the relay and a first operating switch section including the remote control switch for initiating and interrupting current fed to a polar relay and normally closed and normally opened contacts connected in series through a pair of reversly connected diodes to the switch, and an AC source providing source voltage to said series circuit.
  • Other operating switch section or sections will be connected to said first section in parallel relation thereto.
  • Principal object of the present invention is to provide a remote control switch circuit wherein loads can be steppedly remote-controlled by a simple combination of circuit elements.
  • Another object of the present invention is to provide a remote control switch circuit wherein, even if the number of indicating lamps increases, the life of the auxiliary contact of the relay will not be reduced.
  • a further object of the present invention is to provide a remote control switch circuit wherein the wiring can be simplified.
  • FIG. I shows an embodiment of the remote control switch circuit of the present invention.
  • FIGS. 2A-2G are time charts for explaining the operation of the circuit of FIG. 1.
  • FIG. 3 is a block diagram showing a wiring of a plurality of the circuitry systems in FIG. 1.
  • FIG. 4 shows a further improved embodiment of the remote control switch circuit of the present invention.
  • FIGS. 5A-5G are time charts for explaining the operation of the circuit of FIG. 4.
  • FIG. 6 is a block diagram showing a wiring relation in the case of wiring a plurality of the circuitry systems in FIG. 4.
  • Ac is an alternating current source
  • A is a remote control relay circuit, that is, a re mote load section and B, to B remote control switch sections or operating switch sections.
  • Ry is a first polar relay coil, r, and r, are contacts to be set ON and OFF by the operation of the relay coil Ry
  • D and D' are diodes and r,,, r, and r are contacts forming the contact r,.
  • remote control switch section B is a change-over switch, S, and S, are contacts
  • R1 is a second polar relay for making a switching operation depending on the direction of the current
  • R1 is its contact
  • la and lb are contacts
  • D, and D are diodes
  • L is an indicating lamp.
  • the polar relay R1 in the present instance is so formed that, when the current flows in the direction indicated by the arrow a, the contact Ia will close and, when the current flows in the direction indicated by the arrow b, the contact lb will close.
  • the formations of the respective sections B and B are also the same as of the section B,.
  • A is a remote control circuit
  • B to 8,, are operating switch sections.
  • the relay 3 Ry, polar relays R1 to R1 switches S, to S lamps L to L diodes and relay contacts used to form A, and B to B are represented respectively by the same corresponding numerals as in FIG. 1.
  • the feature of this circuit system is that the diodes D to D are connected in series with the lamps L to L
  • the diodes D and D are connected between such number not interfering with the operation of the remote control relay Ry as, for example, two lamps L and L of the remote control switch sections B and B and contacts and 2c (movable contacts of the polar relays R1 and R1 and the lamp L of the rest remote control switch section B is connected through the diode movable contact r side (one end of the current source 'Ac) of the switching auxiliary contact r of the remote control relay Ry and the movable contact 3c of the switching contact R1 of the polar relay R1
  • the other formation is the same as in the case of FIG. 1 and the operation is also exactly the same as in FIG. 1.
  • FIG. 5 shows a time chart of the present invention.
  • the current of the indicating lamps flowing through the auxiliary contact of the remote control relay .Ry is not larger than for two lamps, even if the number of lamps increases, the life of the auxiliary contact will not be reduced.
  • the third switch section 8 shown in FIG.. 6, as the electric wire corresponding to l in FIG. 3 can be made only a single electricwire lo, the third switch section 8;; will be also of the same number of wirings as of the first and second switch sections B, and B and the wirings can be simplified.
  • a remote control switch circuit comprising the combination of a. a remote load section comprising 1. a first polarized relay coil for operating the contacts of a load, 2. a pair of oppositely facing diodes connected in D between the.
  • a switch operated by said second polarized relay coil connected between said manually operated switch and said second' pair of diodes for connecting alternate onesof said second pair of diodes in series with said manually operated switch in response to energization of said second coil by signals of alternate polarities
  • a remote control switch circuit as set forth in claim 1 which includes a plurality of said operating switch sections in at least one of which the indicating lamp is connected in series with at least one of the diodes in said second pair and said a-c. source, and including a further diode connected in series with said indicating lamp.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Keying Circuit Devices (AREA)
  • Relay Circuits (AREA)
  • Selective Calling Equipment (AREA)
US3794888D 1971-10-01 1972-09-27 Remote control switch circuit Expired - Lifetime US3794888A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7688771A JPS5143177B2 (enrdf_load_stackoverflow) 1971-10-01 1971-10-01

Publications (1)

Publication Number Publication Date
US3794888A true US3794888A (en) 1974-02-26

Family

ID=13618132

Family Applications (1)

Application Number Title Priority Date Filing Date
US3794888D Expired - Lifetime US3794888A (en) 1971-10-01 1972-09-27 Remote control switch circuit

Country Status (3)

Country Link
US (1) US3794888A (enrdf_load_stackoverflow)
JP (1) JPS5143177B2 (enrdf_load_stackoverflow)
CA (1) CA964756A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213059A (en) * 1977-09-12 1980-07-15 Pdm Electrical Products Ltd. Power switching circuit
US4367510A (en) * 1980-05-16 1983-01-04 Fuji Electric Co., Ltd. Remote control switch device
US4408250A (en) * 1980-07-08 1983-10-04 Matsushita Denko Kabushiki Kaisha Circuit for remotely operating an electromagnetic relay
US4833339A (en) * 1983-10-13 1989-05-23 Lutron Electronics Co., Inc. Load control system
US5049876A (en) * 1988-07-16 1991-09-17 Honeywell Inc. Data communication system
US5382836A (en) * 1992-09-28 1995-01-17 Shinkoh Electric Co., Ltd. Push-button switch device
US5874789A (en) * 1996-04-05 1999-02-23 Su; Chih-Hai Circuit for integrating a local switch and a remote-control switch
US5986358A (en) * 1998-07-15 1999-11-16 Gen-Home Technology Co. Ltd. Remotely controllable wall switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202611A (en) * 1979-01-08 1980-05-13 Bell & Howell Company Projector apparatus and control arrangement
JPH0125370Y2 (enrdf_load_stackoverflow) * 1981-04-28 1989-07-31

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3201754A (en) * 1962-05-10 1965-08-17 Aircraft Armaments Inc Remote control and indication system
US3273024A (en) * 1963-12-11 1966-09-13 Weyerhaeuser Co Impulse relay

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3201754A (en) * 1962-05-10 1965-08-17 Aircraft Armaments Inc Remote control and indication system
US3273024A (en) * 1963-12-11 1966-09-13 Weyerhaeuser Co Impulse relay

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213059A (en) * 1977-09-12 1980-07-15 Pdm Electrical Products Ltd. Power switching circuit
US4367510A (en) * 1980-05-16 1983-01-04 Fuji Electric Co., Ltd. Remote control switch device
US4408250A (en) * 1980-07-08 1983-10-04 Matsushita Denko Kabushiki Kaisha Circuit for remotely operating an electromagnetic relay
US4833339A (en) * 1983-10-13 1989-05-23 Lutron Electronics Co., Inc. Load control system
US5049876A (en) * 1988-07-16 1991-09-17 Honeywell Inc. Data communication system
US5382836A (en) * 1992-09-28 1995-01-17 Shinkoh Electric Co., Ltd. Push-button switch device
US5473203A (en) * 1992-09-28 1995-12-05 Shinkoh Electric Co., Ltd. Push-button switch device
US5874789A (en) * 1996-04-05 1999-02-23 Su; Chih-Hai Circuit for integrating a local switch and a remote-control switch
US5986358A (en) * 1998-07-15 1999-11-16 Gen-Home Technology Co. Ltd. Remotely controllable wall switch

Also Published As

Publication number Publication date
CA964756A (en) 1975-03-18
JPS5143177B2 (enrdf_load_stackoverflow) 1976-11-19
JPS4842349A (enrdf_load_stackoverflow) 1973-06-20

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