CN2049429U

CN2049429U - Wireless remote-controlled switch for high voltage power supply

Info

Publication number: CN2049429U
Application number: CN 89201145
Authority: CN
Inventors: 侯振陆
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-01-31
Filing date: 1989-01-31
Publication date: 1989-12-13

Abstract

The utility model relates to a wireless remote control switch device for high voltage power supply, which comprises an emitter (1), a receiver (2), a controller and an alarm (3). The emitter gives out high frequency amplitude-modulated electromagnetic wave demand signals which are received by the receiver. An intermediate relay (4) is driven by the receiver which controls the electric transmission and the power cutoff of various high voltage electric appliances (6) in the range of 300 meters through an alternating current contactor (5), and meanwhile, audible and visual alarm is given. The utility model is particularly suitable for high voltage power supply cubicles in the construction sites of mobile power stations, generator sets, etc.

Description

Wireless remote-controlled switch for high voltage power supply

The utility model relates to a kind of signalling, relates to a kind of radio remote control switch device of high voltage source or rather.

The existing radio remote control switch that is widely used on electronic toy, household electrical appliance and the industrial equipment, generally comprise: (1) reflector, at least include oscillator, modulator, mode with the corresponding control command of the radio signal of a frequency is worked, send the Amplitude Modulation High Frequency electromagnetic wave of one or more frequencies, be mapped in the air from the sky wire spoke; (2) receiver picks up radio control signal and the power amplification that reflector sends by the one or more frequency-selecting passages in the receiver; (3) controller is pressed the control signal that is received and is driven corresponding actuator, for example relay; (4) radio remote control switch that has also with alarm, has sound and light of alarm.

Radio remote control switch can be made far distance controlled single or two kinds of limit actions to controlled device, as the startup or the shutdown of control motor, controls opening or closing of electric brake etc.

The power supply wireless remote control switch of the above-mentioned basic fundamental of employing of domestic practicality, as the remote control switch of control household electrical appliance, control voltage is the highest 220 volts, and Control current maximum number ampere, command range are 10～30 meters.

In departments such as railway, iron and steel, mine, oil, buildings, setting up has movably generating set, and working send electricity next outage, supplies all kinds of machine electricity consumptions in job site.These power utilization environment noises are big, condition is poor, voltage height (380V～1000V), generating set is generally far away from the electricity consumption scene, in case during great contingency such as on-the-spot generation personnel electric shock, fire, blast, need in seconds cut off the general supply output of generating set.Take place the people can not near or have little time in emergency circumstances near the power cabinet electric brake, incur loss through delay the expansion that to cause damage of cutting off the power supply, this novel purpose is in power distribution department, as scenes such as high-tension switch cabinet, the power stations of flowing, utilize radio remote control technology to make the high voltage source radio remote control switch, adopt low-voltage that high voltage, big electric current are carried out remote monitor (300 meters), when the scene meets accident accident, can in seconds cut off on-the-spot general supply by the generating set operator on duty.

The utility model mainly is made up of following four parts, and (1) reflector comprises fixed power source and wireless launcher, can make portablely, carries conveniently, by shift electrician or the use of safe night shift room.The Amplitude Modulation High Frequency electromagnetic wave by the audio signal modulation that reflector produces is mapped to by the sky wire spoke in the air.(2) receiver, the Amplitude Modulation High Frequency electromagnetic wave by antenna receives through detection, amplification, frequency-selecting, drives the auxiliary relay action.(3) controller, the action of receiver auxiliary relay, its movable contact is serially connected in electric power loop (the A.C. contactor action among the 220V～380V) with startup.According to the characteristics of controlled device and control requirement, some groups of dynamic and static contacts of A.C. contactor and power consumption equipment are selected different connecting modes between the high voltage source, to finish the power supply to various controlled devices respectively, have a power failure etc.(4) alarm utilizes a winding point of A.C. contactor in the controller to connect the alarm power supply, and realization sound, light are reported to the police.Receiver, controller, alarm fit together, and place in the electricity consumption scene, generally are used to control 380 volts of total input-wires.

Further specify operation principle of the present utility model and enforcement below in conjunction with accompanying drawing.

Accompanying drawing 1, enforcement general diagram of the present utility model

Accompanying drawing 2, enforcement electrical schematic diagram of the present utility model

Accompanying drawing 1 is an enforcement general diagram of the present utility model, the Amplitude Modulation High Frequency electromagnetic wave that reflector 1 sends is mapped in the air by the sky wire spoke, being received device 2 frequency-selectings receives and processing and amplifying, drive auxiliary relay 4 actions, if when being used for directly controlling controlled device, this auxiliary relay quiet, movable contact may command 220V～380V voltage, 10～40 amperes in electric current, if when controlling indirectly by A.C. contactor 5 again, may command voltage 380～1000V, Control current 100～500A, 3 is audible-visual annunciator among the figure, 6 is various High-Voltage Electrical Appliances, and 7 is 9～12V adjustable power of direct current, is receiver 2, the working power of alarm 3.Among the figure shown in frame of broken lines content can be installed in the box of 250mm * 200mm * 120mm.

Accompanying drawing 2 is an enforcement electrical schematic diagram of the present utility model, because of paper limited, with accompanying drawing 2 be cut into Fig. 2-1,2-2,2-3(comprises 2-3a, 2-3b, 2-3c, 2-3d), 2-4, and explanation respectively.

Accompanying drawing 2-1 is a reflector electrical schematic diagram of the present utility model, two channel switch K ₁, K ₂Can control the voice modulation Amplitude Modulation High Frequency ripple that produces two frequencies respectively.The power turn-on K switch is powered to reflector, triode BG ₇, BG ₈Deng composition multivibrator, first passage K switch ₁Closure (is K ₁- ₁, K ₁- ₂Closed) press component parameters shown in the figure, will produce 2000 hertz of audio signals.The second channel K switch ₂Closure (is K ₂- ₁, K ₂- ₂Closed) will produce the 2800HZ audio signal.Triode BG ₉, BG ₁₀Deng forming the push-pull type carrier-frequency oscilaltor, produce the CF signal of 29.5 megahertzes.Work as BG ₈When ending, triode BG ₁₁Conducting, BG ₉, BG ₁₀BG is worked as in work ₈During conducting, BG ₁₁End BG ₉, BG ₁₀Do not work, thereby finish high frequency modulated work to audio signal, what penetrated by the sky wire spoke is the frequency electromagnetic waves of two kinds of voice modulation, represents two kinds of control command signal respectively.If this reflector is selected high β transistor in force for use, suitably improved circuit work power, increase coil L ₄, L ₅, L ₆The number of turns, and circuit miscellaneous part parameter constant can make transmitting power improve, and has good reception in 300 meters scopes.

Accompanying drawing 2-2 is the utility model receiver electrical schematic diagram, triode BG ₁, capacitor C ₃, inductance L ₁Deng forming superregenerative detector, the frequency electromagnetic waves that is received by antenna is through BG ₁Deng detection, GZL filtering is delivered to by triode BG ₂, BG ₃Amplify in the audio voltage amplifier of forming, again by triode BG ₄Carry out impedance conversion Deng the emitter follower of forming, then respectively by capacitor C ₁₁, C ₁₆Be coupled to C ₁₂, L ₂And C ₁₇, L ₃Carry out frequency-selecting in two groups of frequency-selective circuits, they are tuned in 2000HZ and 2800HZ respectively, C when reflector sends the first passage instruction ₁₂, L ₂Resonance, triode BG ₅Conducting, auxiliary relay J ₁Action, when reflector sends the second channel instruction, C ₁₇, L ₃Resonance, triode BG ₆Conducting, auxiliary relay J ₂Action.The A point is the audio signal listening point among the figure, and switch M is the receiver power supply switch.

Comprise 2-3a shown in the accompanying drawing 2-3,2-3b, 2-3c, 2-3d are the various Application Examples of the utility model controller, and Fig. 2-3a is a single channel controller electrical schematic diagram, when the mains switch cabinet send electricity along separate routes, if only need control one the tunnel, the electrical schematic diagram of then pressing Fig. 2-3a connects J ₁- ₁Be auxiliary relay J ₁Movable contact, CJ ₁Be ac contactor coil, CJ ₁- ₆, CJ ₁- ₇, CJ ₁- ₈Be the break of A.C. contactor, make the electric contact that send of high voltage load 10.Remote control part is only with a passage, when reflector sends first kind of control command, and auxiliary relay J ₁Action, A.C. contactor CJ ₁Action, its fixed contact is opened, the power supply of cutoff high load.If when adopting second kind of control command to carry out single channel control, operation principle is identical, repeats no more.

Fig. 2-3b is the dual channel controller electrical schematic diagram, controls two-way

high voltage load

10,11 respectively with the control command of two passages, the explanatory note of the same Fig. 2-3a of its operation principle, wherein J ₂- ₁Be auxiliary relay J ₂Movable contact, CJ ₂- ₆, CJ ₂- ₇, CJ2- ₈Be A.C. contactor CJ ₂Break.

Fig. 2-3C is the reversible movement controller electrical schematic diagram of generator.YD is the following generators of is 100 kilowatts, when reflector is sent out first kind of channel instruction, and auxiliary relay J₁Action, its movable contact J ₁- ₁Adhesive, A.C. contactor CJ ₁Action, its movable contact CJ ₁- ₂, CJ ₁- ₃, CJ ₁- ₄Motor YD is just changeed, when reflector sends second kind of channel instruction, auxiliary relay J ₂Action, its movable contact J ₂- ₁Adhesive, A.C. contactor CJ ₂Action, its movable contact CJ ₂- ₂, CJ ₂- ₃, CJ ₂- ₄Make motor YD counter-rotating.

Fig. 2-3a utilizes the dropout of induction relay partly to control the electrical schematic diagram H of the above mains switch of 1000V ₁, H ₂Be induction relay, coil, and as three-phase electricity total power switch X ₁-X ₈Tripping coil, CJ _1-2, CJ _1-3Be A.C. contactor CJ ₁Two groups of movable contacts, when emission during first kind of control command, auxiliary relay J ₁Action, its movable contact J _1-1Make A.C. contactor CJ ₁Action, induction relay coil H ₁, H ₂Energising is with total power switch X ₁, X ₂Open.This control is specially adapted to control the above mains switch cabinet of 1000V.

Accompanying drawing 2-4 is the alarm electrical schematic diagram.Utilize A.C. contactor CJ ₁, CJ ₂Each movable contact realize that twotone reports to the police.Triode BG ₁₂, BG ₁₃Form multivibrator, CJ when emission first passage control command ₁- ₁Closure, when emission second channel control command, CJ ₂- ₁Closure, alarm powers up, LED ₁, LED ₂Flicker, and with the chimes of doom of two kinds of tones.If press the single channel controller shown in the accompanying drawing 2-3a, this alarm is a power alarm.

When the utility model used in reality, if the long-time electricity consumption of electrical appliance, the load power of controlling should connect the break of A.C. contactor, is connected to power alarm.If in the test occasion, the electricity consumption of electrical appliance short time, the movable contact that load should connect A.C. contactor of controlling is connected to the police that delivers a telegram.

Characteristics of the present utility model are: in the industrial electric control system, comprehensive utilization automatic control technology and the communication technology, by middle relay, simple between A.C. contactor and high voltage is connected cooperation, realization is controlled high voltage with low-voltage, remote high voltage load is carried out the switching electric control, and particularly suitable is in job sites such as mobile power station, generating sets. At the Workplace such as steel rolling workshop one class, use this remote control switch can replace control cables and mechanical switch, operating personnel can leave temperature height, big, the pollution working site heavily of noise, can alleviate workman's labour intensity, are conducive to safety in production.

Claims

1, a kind of high voltage source radio remote control switch, by reflector, receiver, the controller and the audible-visual annunciator of control executing mechanism action combine, the reflector of transmitting audio frequency modulation Amplitude Modulation High Frequency ripple comprises a multivibrator at least, push-pull type high frequency carrier-frequency oscilaltor, the receiver that receives the high frequency amplitude wave comprises wave detector, amplifier, frequency-selective circuit with at least one passage, it is characterized in that auxiliary relay is arranged in the receiver, A.C. contactor is arranged in the controller, the movable contact of auxiliary relay and A.C. contactor, AC power is connected in series mutually, and the movable contact of A.C. contactor (or break) is connected in series mutually with the general supply inlet wire of controlled device.