CN104682938B - Light-operated contactor - Google Patents
Light-operated contactor Download PDFInfo
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- CN104682938B CN104682938B CN201510143255.8A CN201510143255A CN104682938B CN 104682938 B CN104682938 B CN 104682938B CN 201510143255 A CN201510143255 A CN 201510143255A CN 104682938 B CN104682938 B CN 104682938B
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Abstract
The invention discloses a kind of light-operated contactor, including insulation shell, electromagnetic system is provided with the insulation shell, contact system, spring, link seat and binding post, it is characterized in that the insulation shell is provided with photo-electric control unit, the photo-electric control unit includes fiber bench and photo-electric control interface circuit, the fiber bench is relative with the light-sensitive device in photo-electric control interface circuit, the photo-electric control interface circuit output end wiring terminal is connected with magnet coil, input binding post is connected with power supply, realize electromagnetic contactor coil power break-make photocontrol, the photocontrol contactor that external control loop connects without electric wire, it is novel with structure, control safety, dependable performance, it is explosion-proof, it is moistureproof, the advantages that liquidproof.
Description
Technical field
The present invention relates to electrical control gear, specifically a kind of light-operated contactor.
Background technology
In existing field of electrical control, contactor is a kind of using wider electrical control gear, is generally used for needing
Frequently it is switched on or switched off the power supply circuit occasion of control object.Its control object is usually motor, resistor, transformer, change
The electrical load such as frequency device or other machine-tools and various electric power units, as shown in accompanying drawing 5 and Fig. 6, this contactor is mainly
It is made up of the electromagnetic system in insulation crust and insulation crust, contact system, spring, binding post A-H, the electromagnetic system
Including magnet coil 2, dynamic iron core 4 and static iron core 1, general capacity it is larger arc-control device is provided with also in insulation crust, so as to
Rapid breaking arc, from burning out main contact, the contact system includes movable contact spring, stationary contact, linkage seat, normally opened auxiliary contact
7 and normally closed auxiliary contact 8, be wound with magnet coil on the static iron core, the magnet coil both ends respectively with binding post G and
Binding post H is connected, and dynamic iron core is provided with above the static iron core, spring, upper end are provided with the groove of the dynamic iron core lower end
Center is provided with linkage seat, and the linkage seat is provided with the normally opened auxiliary contact of movable contact spring and normally closed auxiliary contact, the movable contact spring, normal
To open auxiliary contact and normally closed auxiliary contact both ends are respectively equipped with movable contact, the insulation shell of corresponding movable contact is provided with stationary contact,
The other end of the stationary contact is connected with binding post, and when magnet coil 2 is powered, static iron core 1 produces electromagnetic attraction, will be dynamic
The adhesive of iron core 4, because contact system is linked with dynamic iron core 4, therefore dynamic iron core 4 drives three movable contact springs 6 to act simultaneously, point
Three pairs of stationary contacts 5 are not connected, main contact closure is connected major loop；Touched simultaneously with the normally closed auxiliary that is mechanically coupled of dynamic iron core 4
First 8 disconnect, and normally opened auxiliary contact 7 closes, so as to open or closed control loop；When magnet coil 2 powers off, suction disappears,
The linkage part of dynamic iron core 4 separates by the reaction force of spring 3, movable contact spring and stationary contact is disconnected cut-out major loop；Simultaneously
Closed with the normally closed auxiliary contact 8 that dynamic iron core 4 is mechanically coupled, normally opened auxiliary contact 7 disconnects, and is controlled back so as to be switched on or switched off
Road, its substantive deficiency are：Because the energization and power-off of magnet coil 2 are to run wires to various switches outside contactor, connect
The controllers such as tentaculum, relay, programmable controller control, this directly run wires to outer control loop mode,
Many hidden dangers be present to particular surroundings control.If any inflammable and explosive dust or gas occasion, there was dampness in the air or liquid etc.
The hidden danger such as electric leakage, short circuit in environment all be present, if difficult realization totally-enclosed to the external control loop of electrical equipment, cost are high.
Through retrieval, disclose on the net a kind of mixing type alternating contactor passive switch driving controller based on optocoupler, its
The patent of invention of the patent No. 200910306608.6, its control circuit realize excitation power supply and the three-phase master of contactor using optocoupler
The isolation of circuit electricity, the switching signal that three-phase bidirectional thyristor provides optocoupler control is unified for, realizes hybrid AC contact
Direct drive of the device based on light-coupled isolation with switch control, realizes no arc and connects and separate, but its substantive deficiency is：Control
Loop or electric-control system, run wires to, and have simply added one-level light-coupled isolation to be directly connected to control with what is switched, the control is returned
Road also can't resolve the potential safety hazards such as electric leakage, short circuit.
The content of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, there is provided a kind of structure is novel, controls safety, performance can
Lean on, there is explosion-proof, moistureproof, liquid proof light-operated contactor.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of light-operated contactor, including insulation shell, be provided with the insulation shell electromagnetic system, contact system, spring,
Link seat and binding post, it is characterised in that the insulation shell is provided with photo-electric control unit, the photo-electric control unit bag
Fiber bench and photo-electric control interface circuit are included, the fiber bench is relative with the light-sensitive device in photo-electric control interface circuit, described
The circuit output end binding post of photo-electric control interface circuit is connected with magnet coil, circuit input end binding post and power supply
It is connected, fibre-optical splice is inserted into fiber bench, imports light with optical fiber to control photo-electric control interface circuit so as to control contactor
Magnet coil break-make, the external control loop of magnet coil is connected without electric wire, reach explosion-proof, moistureproof, liquid proof safety control
Make and use.
The present invention can be provided with auxiliary fiber bench and light shield in insulation shell, and the auxiliary fiber bench is by firm banking
And two fiber bench of two light path coaxials are formed on firm banking, the auxiliary fiber bench is through firm banking and insulation shell
It is fixedly connected, between two fiber bench, the light shield links the light shield through the seat that links with dynamic iron core, works as dynamic iron core
When driving linkage seat movement, the light shield of linkage seat upper end disconnects normal open light path, makes normal off conducting light paths；Make the control of contactor
Loop processed further has the function that security control without electrical connection.
Photo-electric control interface circuit of the present invention is defeated by photo thyristor VS1, bidirectional thyristor VS2, resistance Rs, circuit
Enter terminated line terminals P, circuit input end binding post Q, circuit output end binding post R and circuit output end binding post S groups
Into, described circuit input end binding post P connections photo thyristor VS1 one end and bidirectional thyristor VS2 non-gates, light-operated brilliant lock
Pipe the VS1 other end connection resistance Rs, resistance the Rs other end connection bidirectional thyristor VS2 gate pole, bidirectional thyristor VS2's
Another termination binding post R, is connected between the circuit input end binding post Q and circuit output end binding post S with wire, electricity
The binding post G and binding post H of magnetic coil connect with the binding post R and binding post S of photo-electric control interface circuit 104 respectively
Connect, by photo thyristor VS1, whether light controls the break-make of magnet coil power supply, has reached external control loop without being electrically connected
The purpose connect.
Photo-electric control interface circuit of the present invention can also be reached by following measure：
Photo-electric control interface circuit of the present invention includes phototransistor VT1, FET VT2, resistance R1, diode
VD1, relay J1, relay normally open contact J1-1, circuit input end binding post P ', circuit input end binding post Q ', electricity
Road output end wiring terminal R ' and circuit output end binding post S ', the phototransistor VT1 colelctor electrodes connect positive source
Vdd, phototransistor VT1 emitter stages connect nodes X, and resistance R1 is connect between nodes X and earth terminal Vss, the FET VT2's
Grid connects nodes X, and source electrode meets node Y, and drain electrode meets earth terminal Vss, and the diode VD1 positive poles connect positive source Vdd, negative pole
Node Y is met, the relay J1 is connected between positive source Vdd and node Y, and the ends of relay normally open contact J1-1 two are connected on
Between circuit input end binding post P ' and circuit output end binding post R ', the circuit input end binding post Q ' and circuit
Connected between output end wiring terminal S ' with wire, the binding post G and binding post H of the magnet coil 2 respectively with photoelectric control
Circuit output end binding post R ' and the S ' connections of circuit output end binding post in interface circuit 104 processed, pass through photoelectric crystal
Whether light controls the break-make of magnet coil power supply to pipe VT1, has reached purpose of the external control loop without electrical connection.
The present invention can be provided with voltage-stabilized power supply AD in the photo-electric control interface circuit, and the power supply of the voltage-stabilized power supply AD is defeated
, can will when entering that voltage is identical between voltage and binding post P ' and binding post Q ' between binding post V and power input binding post W
Binding post V and binding post W are connected with binding post P ' and binding post Q ' respectively, the power supply output of the voltage-stabilized power supply AD
End is connected with photo-electric control interface circuit positive pole Vdd and earth terminal Vss.
Voltage-stabilized power supply AD of the present invention uses switch-type stabilized power supply AD, with reach power supplying efficiency is high, the precision of voltage regulation is high,
The wide effect of voltage stabilized range.
Phototransistor VT1 of the present invention, photodiode can be also used, can also use photosensitive IC or photo resistance,
The FET VT2 can also use transistor.
The present invention is due to using said structure, having novel structure, control safety, dependable performance, explosion-proof, moistureproof, liquid-proof
The advantages that body.
Brief description of the drawings
Fig. 1 is the principle schematic of the present invention.
Fig. 2 is a kind of principle schematic of embodiment of heretofore described photo-electric control interface circuit.
Fig. 3 is the principle schematic of second of embodiment of heretofore described photo-electric control interface circuit.
Fig. 4 is the principle schematic of the third embodiment of heretofore described photo-electric control interface circuit.
The principle schematic of Fig. 5 contactors of the prior art.
Fig. 6 is Fig. 5 outline structural diagram.
Reference：Binding post A, B, C, D, E, F, G, H, binding post P, Q, R, S, V, W, nodes X, Y, static iron core 1,
Magnet coil 2, spring 3, dynamic iron core 4, stationary contact 5, movable contact spring 6, normally opened auxiliary contact 7, normally closed auxiliary contact 8, arc-control device
9, insulation shell 10, stationary contact 11,12,13,14,15, link seat 16, fiber bench 101, light shield 102, fiber bench 103, photoelectricity
Control interface 104, aid in fiber bench 105, fiber bench 106, light-path 107, photo thyristor VS1, resistance Rs, two-way crystalline substance
Brake tube VS2, switch-type stabilized power supply AD, phototransistor VT1, resistance R1, diode VD1, FET VT2, relay J1,
Normally open contact J1-1, positive source Vdd, earth terminal Vss.
Embodiment：
The present invention is further described with reference to the accompanying drawings and examples：
As shown in Figure 1, a kind of light-operated contactor, including insulation shell, be provided with the insulation shell 10 electromagnetic system,
Contact system, spring 3, linkage seat 16 and binding post A, B, C, D, E, F, G, H, it is characterised in that set on the insulation shell 10
There is photo-electric control unit, the photo-electric control unit includes fiber bench 103 and photo-electric control interface circuit 104, the fiber bench
103 is relative with the light-sensitive device in photo-electric control interface circuit 104, the circuit output end of the photo-electric control interface circuit 104
Binding post R and S is connected with the binding post G and H of magnet coil 2, circuit input end binding post P and Q respectively with power supply
It is connected, when fibre-optical splice insertion fiber bench, imports light with optical fiber to control photo-electric control interface circuit so as to control contactor
Magnet coil break-make, make the on/off of magnet coil control external loop to be connected without electric wire, reach explosion-proof, moistureproof, liquidproof
Security control effect.
The present invention can be provided with auxiliary fiber bench 105 and light shield 102 in the insulation shell 10, the auxiliary fiber bench be by
Firm banking and the coaxial optical fiber seat 101 of firm banking lower end both sides, fiber bench 106 are formed, and the auxiliary fiber bench is through solid
Determine base to be fixedly connected with insulation shell 10, the light shield 102 be located at light path coaxial fiber bench 101 and fiber bench 106 it
Between, the light shield 102 links through the seat 16 that links with dynamic iron core 4, and when dynamic iron core 4 drives linkage seat 16 to move, link seat 16
The light shield 102 of upper end disconnects normal open light path, makes normal off conducting light paths；The control loop of contactor is set to enter one without electrical connection
Step has the function that security control.
Photo-electric control interface circuit of the present invention is defeated by photo thyristor VS1, bidirectional thyristor VS2, resistance Rs, power supply
Enter terminated line terminals P, power input binding post Q, power output end binding post R and power output end binding post S groups
Into, described power input binding post P ends connection photo thyristor VS1 one end and bidirectional thyristor VS2 non-gates, light-operated crystalline substance
Brake tube the VS1 other end connection resistance Rs, resistance the Rs other end connection bidirectional thyristor VS2 gate pole, bidirectional thyristor VS2
Another termination binding post R, connected between the power input binding post Q and power output end binding post S with wire,
The binding post G and binding post H of magnet coil the binding post R and binding post S with photo-electric control interface circuit 104 respectively
Connection, by photo thyristor VS1, whether light controls the break-make of magnet coil power supply, has reached external control loop without electricity
The purpose of connection.
Photo-electric control interface circuit of the present invention can also be reached by following measure：
Photo-electric control interface circuit of the present invention includes phototransistor VT1, FET VT2, resistance R1, diode
VD1, relay J1, relay normally open contact J1-1, circuit input end binding post P ', circuit input end binding post Q ', electricity
Road output end wiring terminal R ' and circuit output end binding post S ', the phototransistor VT1 colelctor electrodes connect positive source
Vdd, phototransistor VT1 emitter stages connect nodes X, and resistance R1 is connect between nodes X and earth terminal Vss, the FET VT2's
Grid connects nodes X, and source electrode meets node Y, and drain electrode meets earth terminal Vss, and the diode VD1 positive poles connect positive source Vdd, negative pole
Node Y is met, the relay J1 is connected between positive source Vdd and node Y, and the ends of relay normally open contact J1-1 two are connected on
Between circuit input end binding post P ' and circuit output end binding post R ', the circuit input end binding post Q ' and circuit
Connected between output end wiring terminal S ' with wire, the binding post G and binding post H of the magnet coil 2 respectively with photoelectric control
Circuit output end binding post R ' and the S ' connections of circuit output end binding post in interface circuit 104 processed, pass through photoelectric crystal
Whether light controls the break-make of magnet coil power supply to pipe VT1, has reached purpose of the external control loop without electrical connection.
The present invention can be provided with voltage-stabilized power supply AD in the photo-electric control interface circuit, and the power supply of the voltage-stabilized power supply AD is defeated
, can will when entering that voltage is identical between voltage and binding post P ' and binding post Q ' between binding post V and power input binding post W
Binding post V and binding post W are connected with binding post P ' and binding post Q ' respectively, the power supply output of the voltage-stabilized power supply AD
End is connected with photo-electric control interface circuit positive pole Vdd and earth terminal Vss.Voltage-stabilized power supply AD also may be used in photo-electric control interface circuit
That can cancel, powered by external stabilized power is unified.
Voltage-stabilized power supply AD of the present invention uses switch-type stabilized power supply AD, with reach power supplying efficiency is high, the precision of voltage regulation is high,
The wide effect of voltage stabilized range.
Phototransistor VT1 of the present invention, photodiode can be also used, can also use photosensitive IC or photo resistance,
The FET VT2 can also use transistor.
The present invention is due to using said structure, having novel structure, control safety, dependable performance, explosion-proof, moistureproof, liquid-proof
The advantages that body.
Embodiment 1：As shown in Figure 1, a kind of light-operated contactor, including insulation shell, the insulation shell is interior to be provided with electricity
Magnetic system, contact system, spring 3, linkage seat 16 and binding post A, B, C, D, E, F, G, H, it is characterised in that the insulation shell
Body is provided with photo-electric control unit, and the photo-electric control unit includes fiber bench 103 and photo-electric control interface circuit 104, described
Fiber bench 103 is relative with the light-sensitive device in photo-electric control interface circuit 104, the circuit of the photo-electric control interface circuit 104
Output end wiring terminal R and S is connected with the binding post G and H of magnet coil 2, circuit input end binding post P and Q difference
It is connected with power supply, when fibre-optical splice insertion fiber bench, imports light with optical fiber to control photo-electric control interface circuit to control
Electromagnetic contactor coil break-make, make the on/off of electromagnetic contactor coil control external loop to be connected without electric wire, reach it is explosion-proof,
Moistureproof, liquid proof security control effect.
Embodiment 2：As shown in accompanying drawing 1,2, a kind of light-operated contactor, including insulation shell, it is provided with the insulation shell
Electromagnetic system, movable contact spring 6, stationary contact 5, spring 3, linkage seat 16, binding post A, B, C, D, E, F, G, H, the electromagnetic system
Including magnet coil 2, dynamic iron core 4 and static iron core 1, auxiliary fiber bench 105, the and of light shield 102 are additionally provided with the insulation shell
Photo-electric control unit, the auxiliary fiber bench are the fiber bench 101 and light by light path coaxial on firm banking and firm banking
Fine seat 106 is formed, and the auxiliary fiber bench is fixedly connected through firm banking with insulation shell 10, and the light shield 102 is located at two
Between the fiber bench 101 and fiber bench 106 of individual light path coaxial, the light shield 102 links through the seat 16 that links with dynamic iron core 4, when
When dynamic iron core 4 drives the linkage movement of seat 16, the light shield 102 of linkage seat 16 upper end disconnects normal open light path, leads normal off light path
It is logical；The control loop of contactor includes fiber bench 103 and photo-electric control interface circuit without electrical connection, the photo-electric control unit
104, fibre-optical splice, the fibre-optical splice and the light-sensitive device in photo-electric control interface circuit 104 are connected in the fiber bench 103
Relatively, output end wiring the terminal R and S of the photo-electric control interface circuit 104 the binding post G and H with magnet coil 2 respectively
It is connected, circuit input end binding post P and Q are connected with power supply respectively, when fibre-optical splice insertion fiber bench, are imported with optical fiber
Light controls photo-electric control interface circuit so as to control contactor magnet coil break-make, makes the on/off of electromagnetic contactor coil
External loop is controlled to be connected without electric wire, the photo-electric control interface circuit is by photo thyristor VS1, bidirectional thyristor VS2, resistance
Rs, circuit input end binding post P, circuit input end binding post Q, circuit output end binding post R and circuit output termination
Line terminals S is formed, the NOT gate of the circuit input end binding post P ends connection photo thyristor VS1 and bidirectional thyristor VS2
Pole, photo thyristor the VS1 other end connection resistance Rs, resistance the Rs other end connection bidirectional thyristor VS2 gate pole are two-way
Used between IGCT VS2 another termination binding post R, power input binding post Q and power output end the binding post S
Wire connects, and the binding post G and binding post H of magnet coil 2 are respectively with the binding post R of photo-electric control interface 104 and connecing
Line terminals S connections, when obtaining AC power between power input binding post P and Q, the fibre-optical splice in fiber bench 103 has light
During importing, the photo thyristor VS1 in photo-electric control interface circuit 104 receives optical signal conducting, produces photoelectric current, passes through electricity
Resistance Rs turns on bidirectional thyristor VS2, and the voltage between power output end binding post P and binding post Q then passes through two-way brilliant lock
Wire between pipe VS2 and power output end binding post Q and binding post S is added to the binding post G and terminals of magnet coil 2
Sub- H ends, magnet coil 2 it is electric, static iron core 1 produces electromagnetic attraction, by the adhesive of dynamic iron core 4, because contact system is and dynamic iron core 4
Linkage, therefore dynamic iron core 4 drives three movable contact springs 6 to act simultaneously through the seat that links, respectively by stationary contact 5 and 15,11 and 14,12
Connected with 13；The light shield 102 being connected simultaneously with linkage seat is acted and moved down, and makes the optical fiber of auxiliary fiber bench both ends light path coaxial
Seat 101 and the light-path 107 of fiber bench 106 disconnect, so as to disconnect control loop；When the fibre-optical splice in fiber bench 103 is unglazed
During importing, light, no photoelectric current do not produce by oncontacting generates electricity on resistance Rs photo thyristor VS1 in photo-electric control interface 104
Stream flows through, and bidirectional thyristor VS2 is ended conducting, power input binding post P and power supply output when AC power commutates
Circuit between termination line terminals R is disconnected by bidirectional thyristor VS2, and magnet coil 2 powers off, and the electromagnetic attraction of static iron core 1 disappears, and moves iron
Core 4 separates under the promotion of spring 3 with static iron core 1, and dynamic iron core 4 drives three movable contact springs 6 to act simultaneously, respectively by stationary contact 5
Disconnected with 15,11 and 14,12 and 13；Meanwhile the light shield 102 being mechanically coupled through the seat that links with dynamic iron core 4 moves up, and makes fill-in light
The fiber bench 101 of fine seat both ends light path coaxial and the light-path 107 of fiber bench 106 turn on, and then connect control loop, reach
Purpose without electrical connection.
Embodiment 3：As shown in accompanying drawing 1,3, a kind of light-operated contactor, including insulation shell, it is provided with the insulation shell
Electromagnetic system, movable contact spring 6, stationary contact 5, spring 3, linkage seat 16, binding post A, B, C, D, E, F, G, H, the electromagnetic system
Including magnet coil 2, dynamic iron core 4 and static iron core 1, auxiliary fiber bench 105, the and of light shield 102 are additionally provided with the insulation shell
Photo-electric control unit, the auxiliary fiber bench are the fiber bench 101 and optical fiber by firm banking and firm banking light path coaxial
Seat 106 is formed, and the auxiliary fiber bench is fixedly connected through firm banking with insulation shell, and the light shield 102 is located at two light
Between road coaxial fiber bench 101 and fiber bench 106, the light shield 102 links through the seat 16 that links with dynamic iron core 4, when dynamic iron
When core 4 drives the linkage movement of seat 16, the light shield 102 of linkage seat 16 upper end disconnects normal open light path, makes normal off conducting light paths；Make
The control loop of contactor includes fiber bench 103 and photo-electric control interface circuit 104 without electrical connection, the photo-electric control unit,
Fibre-optical splice, the fibre-optical splice and the light-sensitive device phase in photo-electric control interface circuit 104 are connected in the fiber bench 103
It is right, circuit output end the binding post R ' and S ' of the photo-electric control interface circuit 104 binding post with magnet coil 2 respectively
G is connected with H, and circuit input end binding post P ' and Q ' are connected with power supply respectively, when fibre-optical splice insertion fiber bench, uses up
Fibre imports light to control photo-electric control interface circuit 104 so as to the on/off of control contactor magnet coil 2, makes contactor electric
The on/off of magnetic coil controls external loop to be connected without electric wire, the photo-electric control interface circuit include phototransistor VT1,
FET VT2, resistance R1, diode VD1, relay J1, relay normally open contact J1-1, power input binding post
P ', power input binding post Q ', power output end binding post R ' and power output end binding post S ', the photoelectricity are brilliant
Body pipe VT1 colelctor electrodes meet positive source Vdd, and phototransistor VT1 emitter stages connect nodes X, and resistance R1 connects nodes X and earth terminal
Between Vss, the grid of the FET VT2 connects nodes X, and source electrode meets node Y, and drain electrode connects earth terminal Vss, the diode
VD1 positive poles meet positive source Vdd, and negative pole meets node Y, and the relay J1 is connected between positive source Vdd and node Y, described
The ends of relay normally open contact J1-1 two are connected between power input binding post P ' and power output end binding post R ', described
Connected between power input binding post Q ' and power output end binding post S ' with wire, the terminals of the magnet coil 2
Sub- G and binding post H connects with the power output end binding post R ' in photo-electric control interface circuit 104 and power output end respectively
Line terminals S ' connections, when fibre-optical splice has that light guide is fashionable in fiber bench 103, the phototransistor VT1 in photo-electric control interface 104
Receive optical signal and produce photoelectric current conducting, electric current flows into FET VT2 grid, makes FET VT2 source electrode and leakage
Pole turns on, and relay J1, which obtains electric adhesive, turns on relay J1 normally open contacts J1-1, between binding post P ' and binding post Q '
For voltage by relay J1 normally open contact J1-1 and binding post Q ', the wire between binding post S ' is added to magnet coil 2
Binding post G, H ends, magnet coil 2 obtains electric, the generation electromagnetic attraction of static iron core 1, by the adhesive of dynamic iron core 4, meanwhile, the band of dynamic iron core 4
Move three movable contact springs 6 to act simultaneously, respectively by stationary contact 5 and 15,11 and 14,12 connect with 13；Meanwhile the seat that links drives and is in the light
Body 102 moves down, and disconnects the fiber bench 101 of light path coaxial and the light-path 107 of fiber bench 106, and then blocks control loop；When
During importing that optical fiber is unglazed, light, no photoelectric current do not produce by resistance phototransistor VT1 in photo-electric control interface circuit 104
VT2 grid is connected to earth terminal Vss by R1, flows into FET VT2 grid no current, FET VT2 source electrode
End with drain electrode, relay J1 power-off disconnects relay J1 normally open contacts J1-1, between binding post P ' and binding post R '
Circuit is disconnected by relay J1 normally open contact J1-1, and magnet coil 2 powers off, and the electromagnetic attraction of static iron core 1 disappears, and dynamic iron core 4 exists
Separated under the promotion of spring 3 with static iron core 1, because contact system is linked with dynamic iron core 4, therefore dynamic iron core 4 drives three
Movable contact spring 6 acts simultaneously, respectively disconnects stationary contact 5 and 15,11 and 14,12 and 13；Simultaneously and the gear that is mechanically coupled of dynamic iron core 4
Body of light 102 acts, and turns on the fiber bench 101 of light path coaxial and the light-path 107 of fiber bench 106, and then connect control loop
It is logical, reach the purpose without electrical connection.
Embodiment 4：As shown in accompanying drawing 1,4, a kind of light-operated contactor, including insulation shell, it is provided with the insulation shell
Electromagnetic system, movable contact spring 6, stationary contact 5, spring 3, linkage seat 16, binding post A, B, C, D, E, F, G, H, the electromagnetic system
Including magnet coil 2, dynamic iron core 4 and static iron core 1, auxiliary fiber bench, light shield 102 and photoelectricity are additionally provided with the insulation shell
Control unit, the auxiliary fiber bench are the fiber bench 101 and fiber bench by light path coaxial on firm banking and firm banking
106 are formed, and the auxiliary fiber bench is fixedly connected through firm banking with insulation shell, and the light shield 102 is located at two light paths
Between coaxial fiber bench 101 and fiber bench 106, the light shield 102 links through the seat 16 that links with dynamic iron core 4, when dynamic iron core 4
When driving the linkage movement of seat 16, the light shield 102 of linkage seat 16 upper end disconnects normal open light path, makes normal off conducting light paths；Make to connect
The control loop of tentaculum includes fiber bench 103 and photo-electric control interface circuit 104, institute without electrical connection, the photo-electric control unit
To state and fibre-optical splice is connected in fiber bench 103, the fibre-optical splice is relative with the light-sensitive device in photo-electric control interface circuit 104,
The photo-electric control interface circuit 104 includes phototransistor VT1, FET VT2, resistance R1, diode VD1, relay
J1, relay normally open contact J1-1, circuit input end binding post P ', circuit input end binding post Q ', circuit output termination
Line terminals R ' and circuit output end binding post S ', the phototransistor VT1 colelctor electrodes connect positive source Vdd, photoelectric crystal
Pipe VT1 emitter stages connect nodes X, and resistance R1 is connect between nodes X and earth terminal Vss, and the grid of the FET VT2 connects nodes X,
Source electrode meets node Y, and drain electrode meets earth terminal Vss, and the diode VD1 positive poles meet positive source Vdd, and negative pole meets node Y, described
Relay J1 is connected between positive source Vdd and node Y, and the ends of relay normally open contact J1-1 two are connected on circuit input end and connect
Between line terminals P ' and circuit output end binding post R ', the circuit input end binding post Q ' and circuit output end terminals
Connected between sub- S ' with wire, the binding post G and binding post H of the magnet coil 2 respectively with photo-electric control interface circuit 104
In circuit output end binding post R ' and the S ' connections of circuit output end binding post, the present invention can be in the photo-electric control interface
Electricity between power input binding post V and power input binding post W provided with voltage-stabilized power supply AD, the voltage-stabilized power supply AD in circuit
Pressure with when voltage is identical between binding post P ' and binding post Q ', can by binding post V and binding post W respectively with binding post
P ' and binding post Q ' connections, power output end and photo-electric control interface circuit positive pole Vdd and the ground connection of the voltage-stabilized power supply AD
End Vss is connected；Voltage-stabilized power supply AD of the present invention uses switch-type stabilized power supply AD, and to reach, power supplying efficiency is high, voltage stabilizing is smart
The effect that degree is high, voltage stabilized range is wide;When fibre-optical splice has that light guide is fashionable in fiber bench 103, the photoelectricity in photo-electric control interface 104
Transistor VT1 receives optical signal and produces photoelectric current conducting, and electric current flows into FET VT2 grid, makes FET VT2's
Source electrode and drain electrode turn on, and relay J1, which obtains electric adhesive, turns on relay J1 normally open contacts J1-1, binding post P ' and terminals
Voltage between sub- Q ' is added to electromagnetic wire by the wire between relay J1 normally open contacts J1-1 and binding post Q ' binding posts S '
Binding post G, the H ends of circle 2, magnet coil 2 obtains electric, the generation electromagnetic attraction of static iron core 1, by the adhesive of dynamic iron core 4, meanwhile, move iron
Core 4 drives three movable contact springs 6 to act simultaneously, and respectively by stationary contact 5 and 15,11 and 14,12 connect with 13；Meanwhile the seat band that links
Dynamic light shield 102 moves down, and disconnects the fiber bench 101 of light path coaxial and the light-path 107 of fiber bench 106, and then blocks control
Loop；When the unglazed importing of fibre-optical splice, light, no photoelectric current do not produce phototransistor VT1 in photo-electric control interface circuit 104
Life is by VT2 grid is connected to earth terminal Vss by resistance R1, flows into FET VT2 grid no current, field-effect
Pipe VT2 source electrode and drain electrode end, and relay J1 power-off disconnects relay J1 normally open contacts J1-1, binding post P ' and wiring
Circuit between terminal R ' is disconnected by relay J1 normally open contacts J1-1, and magnet coil 2 powers off, and the electromagnetic attraction of static iron core 1 disappears, and moves
Iron core 4 separates under the promotion of spring 3 with static iron core 1, because contact system is linked with dynamic iron core 4, therefore the band of dynamic iron core 4
Move three movable contact springs 6 to act simultaneously, respectively disconnect stationary contact 5 and 15,11 and 14,12 and 13；While and 4 mechanical phase of dynamic iron core
Light shield 102 even acts, and turns on the fiber bench 101 of light path coaxial and the light-path 107 of fiber bench 106, and then make control
Loop is connected, and has reached the purpose without electrical connection.
The present invention is due to using said structure, having novel structure, control safety, dependable performance, explosion-proof, moistureproof, liquid-proof
The advantages that body.
Claims (5)
1. a kind of light-operated contactor, including insulation shell, the insulation shell is interior to be provided with electromagnetic system, contact system, spring, connection
Dynamic seat and binding post, it is characterised in that the insulation shell is provided with photo-electric control unit, and the photo-electric control unit includes
Fiber bench and photo-electric control interface circuit, the fiber bench is relative with the light-sensitive device in photo-electric control interface circuit, the light
Electric control interface circuit output end wiring terminal is connected with magnet coil, and input binding post is connected with power supply, described
Photo-electric control interface circuit by photo thyristor VS1, bidirectional thyristor VS2, resistance Rs, circuit input end binding post P,
Circuit input end binding post Q, circuit output end binding post R and circuit output end binding post S compositions, the electricity
Road input binding post P connection photo thyristor VS1 and bidirectional thyristor VS2 non-gate, photo thyristor
The VS1 other end connection resistance Rs, resistance the Rs other end connection bidirectional thyristor VS2 gate pole, bidirectional thyristor
VS2 another termination circuit output end binding post R, the circuit input end binding post Q and circuit output terminated line
Connected between terminal S with wire, the binding post G and binding post H of the magnet coil electricity with photo-electric control interface respectively
Road output end wiring terminal R is connected with circuit output end binding post S, and fibre-optical splice is inserted into fiber bench, led with optical fiber
Enter light to control photo-electric control interface circuit so as to control magnet coil break-make, make the external control loop of magnet coil without electric wire
Connection.
Be provided with 2. a kind of light-operated contactor, including insulation shell, in the insulation shell electromagnetic system, contact system, spring,
Link seat and binding post, it is characterised in that the insulation shell is provided with photo-electric control unit, the photo-electric control unit bag
Fiber bench and photo-electric control interface circuit are included, the fiber bench is relative with the light-sensitive device in photo-electric control interface circuit, institute
Photo-electric control interface circuit output end wiring terminal to be stated with magnet coil to be connected, input binding post is connected with power supply,
The photo-electric control interface circuit includes phototransistor VT1, FET VT2, resistance R1, diode VD1, relay
J1, relay normally open contact J1-1, circuit input end binding post P ', circuit input end binding post Q ', circuit output end
Binding post R ' and circuit output end binding post S ', the phototransistor VT1 colelctor electrodes meet positive source Vdd,
Phototransistor VT1 emitter stages connect nodes X, and resistance R1 is connect between nodes X and earth terminal Vss, the FET
VT2 grid connects nodes X, and source electrode meets node Y, and drain electrode meets earth terminal Vss, and the diode VD1 positive poles are connecing power supply just
Pole Vdd, negative pole meet node Y, and the relay J1 is connected between positive source Vdd and node Y, and the relay is normal
The ends of open contact J1-1 two are connected between circuit input end binding post P ' and circuit output end binding post R ', the circuit
Connected between input binding post Q ' and circuit output end binding post S ' with wire, the binding post G of magnet coil and
Binding post H respectively with the circuit output end binding post R ' and circuit output end terminals in photo-electric control interface circuit
Sub- S ' connections, by light-sensitive device whether by photocontrol magnet coil power supply break-make.
3. a kind of light-operated contactor according to claim 1 or 2, it is characterised in that auxiliary is provided with the insulation shell
Fiber bench and light shield, the auxiliary fiber bench is by two fiber bench structures of light path coaxial on firm banking and firm banking
Into the auxiliary fiber bench is fixedly connected through firm banking with insulation shell, and the light shield is located at the two of two light path coaxials
Between individual fiber bench, the light shield links through the seat that links with dynamic iron core.
4. a kind of light-operated contactor according to claim 2, it is characterised in that set in the photo-electric control interface circuit
The input wires terminal V and input wires terminal W for having voltage-stabilized power supply AD, the voltage-stabilized power supply AD input with circuit respectively
Terminated line terminals P ' and circuit input end binding post Q ' connections, the voltage-stabilized power supply AD output ends respectively with positive source
Vdd is connected with earth terminal Vss.
5. a kind of light-operated contactor according to claim 4, it is characterised in that the voltage-stabilized power supply AD uses switching regulator
Voltage-stabilized power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143255.8A CN104682938B (en) | 2015-03-30 | 2015-03-30 | Light-operated contactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143255.8A CN104682938B (en) | 2015-03-30 | 2015-03-30 | Light-operated contactor |
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| Publication Number | Publication Date |
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| CN104682938A CN104682938A (en) | 2015-06-03 |
| CN104682938B true CN104682938B (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510143255.8A Active CN104682938B (en) | 2015-03-30 | 2015-03-30 | Light-operated contactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107834324A (en) * | 2017-10-31 | 2018-03-23 | 恒安科技（中山）有限公司 | A kind of explosion-proof connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6396610B1 (en) * | 1997-03-14 | 2002-05-28 | Advantest Corporation | Semiconductor integrated circuit |
| CN1301593C (en) * | 2003-08-18 | 2007-02-21 | 三菱电机株式会社 | Semiconductor device |
| CN103325626A (en) * | 2013-06-19 | 2013-09-25 | 辽宁工程技术大学 | Arc-free alternating current contactor with disconnecting gaps |
| CN204425303U (en) * | 2015-03-30 | 2015-06-24 | 威海远晨光电有限公司 | Light-operated contactor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108867C (en) * | 1999-12-29 | 2003-05-21 | 中国科学院大连化学物理研究所 | MeAPSO-17 molecular sieve and its synthesizing method |
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2015
- 2015-03-30 CN CN201510143255.8A patent/CN104682938B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6396610B1 (en) * | 1997-03-14 | 2002-05-28 | Advantest Corporation | Semiconductor integrated circuit |
| CN1301593C (en) * | 2003-08-18 | 2007-02-21 | 三菱电机株式会社 | Semiconductor device |
| CN103325626A (en) * | 2013-06-19 | 2013-09-25 | 辽宁工程技术大学 | Arc-free alternating current contactor with disconnecting gaps |
| CN204425303U (en) * | 2015-03-30 | 2015-06-24 | 威海远晨光电有限公司 | Light-operated contactor |
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| CN104682938A (en) | 2015-06-03 |
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