CN2193626Y - Solid state a. c. contactor - Google Patents
Solid state a. c. contactor Download PDFInfo
- Publication number
- CN2193626Y CN2193626Y CN 94214485 CN94214485U CN2193626Y CN 2193626 Y CN2193626 Y CN 2193626Y CN 94214485 CN94214485 CN 94214485 CN 94214485 U CN94214485 U CN 94214485U CN 2193626 Y CN2193626 Y CN 2193626Y
- Authority
- CN
- China
- Prior art keywords
- control
- auxilliary
- contactor
- utility
- model
- 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 - Fee Related
Links
Images
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model relates to a solid state A. C. contactor which uses a solid state electronic switch which is composed of thyristors as the switching device of an AC main circuit; a direct current control circuit is composed of an electro-optic coupling element and a zero passage detecting element. The solid state A. C. contactor is provided with a three phase main control circuit, two groups of subsidiary control circuits (one is normally opened, one is normally closed), and building block type subsidiary control elements; the building block type subsidiary control elements can be overlapped and connected to realize the expansion of a subsidiary control point. The utility model realizes the contactless control with three phases multi subsidiary control, and the utility model has the advantages of no noise, spark and interference during operation, high switching speed and strong expandable performance; the utility model is suitable for the automation devices, the electromechanical control systems, the computer devices and the control systems of various industries, particularly the electric appliance control in various adverse environments and severe conditions.
Description
The utility model relates to low-voltage controling appliance, particularly a kind of improvement of electromagnetic AC contactor.
At present, electromagnetic AC contactor is widely used in the automatic control electrical equipment of remote connection and disjunction main circuit or big volume controlled circuit, and A.C. contactor all adopts the structure of electromagnetism adhesive mechanism and mechanical contact like this, have spark, noise disturbs, the contact shake, contact is ablated, sintering, loose contact, switching speed is slow, shortcomings such as reliability is lower, and short and power consumption of life-span is bigger, especially can't be in burn into humidity, inflammable, explosive, adverse circumstances such as dust is big operate as normal.
The purpose of this utility model is a kind of said device features rational structure that designs at the deficiencies in the prior art, the outward appearance novelty, convenient and practical, extensibility is strong, forms the solid state switch element with thyristor, with photoelectricity coupling and zero passage detection element as control loop.The contactless control of three-phase major loop is promptly arranged, two groups of auxilliary control contactless controls in loop are arranged again, and can realize expansion, the solid-state A.C. contactor of additional control point by the auxilliary control of overlap joint cordwood system type device.Thereby realize the three-phase in all kinds of automated systems and the various adverse circumstances is assisted contactless control more, for said system provides desirable safety operation control device.
The purpose of this utility model is achieved in that solid-state A.C. contactor, it is characterized in that: be by DC control circuit, and the three-phase major loop, two groups of auxilliary loop and the auxilliary control of cordwood system type device compositions controlled, wherein:
A). DC control circuit is made up of photoelectricity coupling and zero passage detection element connected in series, can in parallelly also can be connected in series with external control circuit, and its control signal voltage is 3V--24V, and signal code is greater than 100mA;
B). the three-phase main control loop is by adopting thyristor to distinguish cross-over connection in the input and the output of three phase mains as the solid state switch element; It is by diode VD
1--VD
6, resistance R
1---R
3, R
7---R
12, capacitor C
1---C
3Form;
C). two groups of auxilliary control loops are made up of photoelectricity coupling and zero passage detection thyristor element, and it is one normally closed and one often open that two groups of subsidiary control loops are respectively;
D) cordwood system type assist control device is by optocoupler components, zero passage detection thyristor element, auxilliary control device base, the independent device that top cover and printed panel are formed;
Can connect jack and push up solid screw by auxilliary control device and connect the auxilliary control of the auxilliary control of cordwood system type device realization expansion point, complete machine is with resin-sealed, outside underframe, top frame and the top cover of being made by the high strength anti thermoplastic materials formed, its on state current can be by electromagnetic AC contactor predetermined electric current Series Design, and its rated voltage is 110V--660V.
--described DC control circuit is welded in respectively on the two bar printing wiring boards with the element that exchanges output loop, divides the two-layer same underframe that is fixed in, in top frame and the top cover.
--described output loop lead-in wire is handled through the pressure welding sheet copper, and binding post is the screw presser type.
The utility model is formed the interchange output loop with capacitance-resistance absorption circuit with inverse parallel or bidirectional thyristor, form DC control circuit with zero passage detection function with optocoupler components, output loop element and control loop element are placed on two wiring boards, isolate fully, content adopts resin-sealed processing, the output loop lead-in wire can lead to big electric current through the pressure welding sheet copper, and binding post is the screw presser type.Solid-state A.C. contactor itself has the three-phase main control loop, two groups of subsidiary control loops (often opens, and is normally closed, little electric current).Also have auxilliary control device and connect jack and hold-down screw, the auxilliary control of cordwood system type device (or often open, or normally closed) also be contactless controller spare, can connect jack and main device or auxilliary control device by auxilliary control and overlap easily, the auxilliary control of expansion point is formed the solid-state A.C. contactor of assisting control one more.
The utlity model has following advantage: 1. contactless, noiseless, no-spark, noiseless, the reliability height, the life-span can reach 10
8--10
9Inferior; 2. three-phase and outer auxiliary contactless control; 3. the auxilliary control of cordwood system type device can overlap with main device, the expansion additional control point; 4. with small-signal large current load is carried out the contactless control of cut-offfing; 5. the sealing of inner employing heat-conducting resin can be corrosion-resistant, protection against the tide, and mildew-resistant, explosion-proof, fire-retardant, anti-dust etc.; 6. control loop and output loop have the isolation up to 2.5--7.5KV, can with any circuit interface, also can directly control, or trigger control by DC pulse by computer; 7. switching speed height, the switch number of times is unrestricted; 8. antijamming capability is strong, is not subjected to external interference and misoperation; 9. be applicable to any resistive, perception and capacitive circuit; 10. volume is little, and is easy to install, and in the control sets, action is synchronous, and extensibility is strong; 11. economize on electricity, joint silver, in light weight.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1, the utility model electricity theory diagram;
Fig. 2, the circuit diagram of the utility model embodiment, rated current is 40A;
Fig. 3, the circuit diagram of another embodiment of the utility model;
Fig. 4 a, b, c are with the top frame that matches embodiment illustrated in fig. 2;
Fig. 5 a, b are with the underframe that matches embodiment illustrated in fig. 2;
Fig. 6 is with the main body top cover that matches embodiment illustrated in fig. 2;
Fig. 7 is with the main body radiating bottom plate that matches embodiment illustrated in fig. 2;
Fig. 8 is with the main body output loop printed panel that matches embodiment illustrated in fig. 2;
Fig. 9 is with the main body control loop printed panel that matches embodiment illustrated in fig. 2;
Figure 10 a, b are cordwood system type additional device base;
Figure 11, cordwood system type additional device top cover;
Figure 12, the printed substrate of cordwood system type additional device;
Figure 13, the utility model monnolithic case figure;
Figure 14, the auxilliary control of the utility model device outline drawing.
Referring to accompanying drawing 1, A, B, C are three-phase power input end among the figure, and U, V, W are three-phase power output end, are connected with threephase load, when control signal is imported K by the DC control input
1, K
2, K
3As photoelectric coupled device, zero passage detection device work output triggering signal makes No. three solid-state switch C
1, C
2, C
3Conducting, thus make the load energising, finish power connection control to load.When the DC control input stops input control signal, K
1, K
2, K
3Quit work, do not export triggering signal, No. three solid-state switches end, and the load outage has been finished the power remove control to load, J
1, J
1', J
2, J
2' be auxilliary control input/output terminal, at C
1, C
2, C
3Conducting or when ending, subsidiary control loop (often opening) P
1Conducting simultaneously or end J
1, J
1' conducting or shutoff, subsidiary control loop (normally closed) P
2End or conducting J simultaneously
2, J
2' turn-off or conducting, thus realize functions such as signal is chain by external cabling.The thyristor element that uses different rated voltage rated current is as main control loop element of the present utility model, on state current of the present utility model is changed by electromagnetic AC contactor predetermined electric current series to be put, rated voltage is 110V--660V, and the electrical principle of the auxilliary control of cordwood system type device is just P
1Or P
2Independent, make separately again, pass through F
1Z
1, F
2Z
2With the DC control input mutually also, be used for expanding auxilliary control point.
Fig. 2 is a practical circuit of the present utility model: select for use unidirectional thyristor through inverse parallel as switch element, VS
1--VS
6Be unidirectional thyristor, IC
1--IC
3Be photoelectricity coupling, zero passage detection device, VD
1--VD
6Be rectification, protection diode, R
1--R
3, R
7--R
9Be thyristor current-limiting resistance, R
4--R6 adjusts resistance, R for the triggering signal level
10--R
12, C
1--C
3Be the thyristor protection element, form the capacitance-resistance absorption circuit, IC
4, IC
5Be photoelectricity coupling, zero passage detection thyristor device; F
1, Z
1, F
2, Z
2Be that auxilliary control device connects jack.Fig. 2 operation principle: after the control signal input, IC
11,2 end control signal input (IC is just arranged simultaneously
1Device inside is photoelectricity coupling, and the thyristor of band zero passage detection function is formed), the conducting of photoelectricity coupling two-way thyristor, i.e. 4,6 two ends conductings under the effect of A, V both end voltage, electric current, make VS
1, VS
4Obtain the triggering signal conducting simultaneously, just A, the conducting of V two ends.When control signal is not imported, IC
11,2 end just do not have control signal input, photoelectricity coupling two-way thyristor ends, promptly cut-off at 4,6 two ends, though under the effect of A, V both end voltage, electric current, also do not have triggering signal to give VS
1, VS
4, VS
1, VS
4End, just cut-off at A, V two ends.All the other several roads in like manner.
Fig. 3 is another practical circuit of the present utility model: select for use bidirectional thyristor as switch element, VS
1--VS
3Be bidirectional thyristor, IC
1--IC
5The same, R
1--R
6Be thyristor current limliting, protective resistance, R
7--R
9, C
1--C
3Be the thyristor protection element, form the capacitance-resistance absorption circuit, F
1, Z
1, F
2, Z
2The same.Fig. 3 operation principle: behind input control signal, IC
11,2 two ends input control signal simultaneously, the brilliant pipe of photoelectricity coupling two-way conducting, i.e. A, the conducting of V two ends.When input control signal not, IC
11,2 ends do not have input control signal, photoelectricity coupling two-way thyristor ends, promptly end at 4,6 two ends, though under the effect of A, V both end voltage, electric current, also do not have triggering signal to give VS
1, VS
1End, just cut-off at the AV two ends.All the other several roads in like manner.
Below each figure be Fig. 2 practical circuit, rated current is the component diagram of 40A, Fig. 4 is a main body underframe of the present utility model, is used for fixing sealing outlet line plate and fixing radiating bottom plate (Fig. 7); Fig. 5 is a main body of the present utility model top frame, is used for fixing sealing control circuit board and each binding post of barrier; Fig. 6 is a main body top cover of the present utility model, and mark has related parameter, closed interior, and 4 * φ, 1.5 holes on it are that the auxilliary control of cordwood system type device connects jack, 4 * φ, 2 holes are the solid screw in top; Fig. 7 is a main body radiating bottom plate of the present utility model, is used for conducting the heat of thyristor; Fig. 8 is the utility model main body output loop printed panel; Fig. 9 is the utility model main body control loop printed panel.
Below each figure be the auxilliary control of cordwood system type device component figure, be general part: Figure 10 is the auxilliary control of cordwood system type device base, 2 * φ, 1 hole on the figure is for connecting fairlead, 2 * 2 holes are top screw admittedly; Figure 11 has marked related parameter for the auxilliary control of cordwood system type device top cover, and scheming last 2 * φ 1.5 holes is that auxilliary control connects jack; Figure 12 is the printed substrate of the auxilliary control of cordwood system type device.
Fig. 4, Fig. 5, Fig. 6, Figure 10, Figure 11 makes with the high performance heat resistant plastics, can use multiple color; Fig. 7 is an aluminium sheet; 6 major loop lead-in wires on Fig. 8 connect thickening with the similar sheet copper (δ=3) of shape through pressure welding.
Fig. 8 in being fixed in Fig. 4 after, at first use resin-sealed, and then fixedly Fig. 5 and Fig. 9, use again resin-sealed, bonding Fig. 6 at the top at last, after heat conductive silica gel is smeared in the bottom, bonding Fig. 7.
Claims (3)
1, solid-state A.C. contactor is characterized in that: be by DC control circuit, and the three-phase major loop, two groups of auxilliary loop and the auxilliary control of cordwood system type device compositions controlled, wherein:
A). DC control circuit is made up of photoelectricity coupling and zero passage detection element connected in series, can in parallelly also can be connected in series with external control circuit, and its control signal voltage is 3V-24V, and signal code is greater than 100mA;
B). the three-phase main control loop is by adopting thyristor to distinguish cross-over connection in the input and the output of three phase mains as the solid state switch element; It is by diode VD
1--VD
6, resistance R
1-R
3, R
7-R
12, capacitor C
1-C
3Form;
C). two groups of auxilliary control loops are made up of photoelectricity coupling and zero passage detection thyristor element, and it is one normally closed and one often open that two groups of subsidiary control loops are respectively;
D) cordwood system type assist control device is by optocoupler components, zero passage detection thyristor element, auxilliary control device base, the independent device that top cover and printed panel are formed;
Can connect jack and push up solid screw by auxilliary control device and connect the auxilliary control of the auxilliary control of cordwood system type device realization expansion point, complete machine is with resin-sealed, outside underframe, top frame and the top cover of being made by the high strength anti thermoplastic materials formed, its on state current can be by electromagnetic AC contactor predetermined electric current Series Design, and its rated voltage is 110V-660V.
2, solid-state A.C. contactor according to claim 1 is characterized in that: DC control circuit is welded in respectively on the two bar printing wiring boards with the element that exchanges output loop, divides the two-layer same underframe that is fixed in, in top frame and the top cover.
3, solid-state A.C. contactor according to claim 2 is characterized in that: the output loop lead-in wire is handled through the pressure welding sheet copper, and binding post is the screw presser type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94214485 CN2193626Y (en) | 1994-06-16 | 1994-06-16 | Solid state a. c. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94214485 CN2193626Y (en) | 1994-06-16 | 1994-06-16 | Solid state a. c. contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2193626Y true CN2193626Y (en) | 1995-03-29 |
Family
ID=33830732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94214485 Expired - Fee Related CN2193626Y (en) | 1994-06-16 | 1994-06-16 | Solid state a. c. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2193626Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206487A (en) * | 2015-10-08 | 2015-12-30 | 清华大学 | Liquid metal plasma color display device and preparation method thereof |
-
1994
- 1994-06-16 CN CN 94214485 patent/CN2193626Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206487A (en) * | 2015-10-08 | 2015-12-30 | 清华大学 | Liquid metal plasma color display device and preparation method thereof |
| CN105206487B (en) * | 2015-10-08 | 2017-12-19 | 清华大学 | A kind of liquid metal plasma color display device and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2193626Y (en) | Solid state a. c. contactor | |
| US4801828A (en) | Multiphase solid-state contactor | |
| CN201044416Y (en) | Frequency converter special for draught fan and water pump | |
| CN2768306Y (en) | Motor soft starter using silicon controlled ACVV | |
| CN2741248Y (en) | Zero line breaking preventor of transformer | |
| CN1731192A (en) | Surge voltage generator | |
| CN2783702Y (en) | Automatic lamp light saving device | |
| CN206411488U (en) | A kind of Intelligent switch controller | |
| CN2308904Y (en) | 3.3KV high voltage insulation detector | |
| CN205789780U (en) | Intelligent residual current protective breaker | |
| CN2491994Y (en) | Waterproof electricity leakage protector | |
| CN2256145Y (en) | Sealed electronic transformer | |
| CN215644306U (en) | Double-group three-phase solid relay | |
| CN218998385U (en) | Modularized circuit board | |
| CN2396560Y (en) | Master-slave distributed zero cross controlling thyristor valve | |
| CN2362235Y (en) | Mine magnetic starter with photoelectric coupling guide circuit | |
| CN2845268Y (en) | Whole circuit phase shortage fast tripping protection device | |
| JPH01315908A (en) | Polyphase contactless contactor | |
| CN216904530U (en) | Three-phase asynchronous motor with open-phase protection device | |
| CN2684459Y (en) | Non-contact phase change controller for three-phase motor | |
| CN101478228B (en) | Preset voltage type high voltage frequency transformer power unit by-pass circuit for transformer | |
| CN210855082U (en) | Electric hanging basket modular control system | |
| JP2643413B2 (en) | Multi-phase contactless contactor | |
| CN2838128Y (en) | Static switch for power supply | |
| CN2462536Y (en) | Electronic magnetic blowout device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |