CN201708096U - Intelligent alternating-current contactor - Google Patents
Intelligent alternating-current contactor Download PDFInfo
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- CN201708096U CN201708096U CN2010202539377U CN201020253937U CN201708096U CN 201708096 U CN201708096 U CN 201708096U CN 2010202539377 U CN2010202539377 U CN 2010202539377U CN 201020253937 U CN201020253937 U CN 201020253937U CN 201708096 U CN201708096 U CN 201708096U
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Abstract
An intelligent alternating-current contactor belongs to the technical field of electrical automatic control and comprises a base, an upper casing, a lower casing, a cover plate, a beam, a supporting shaft, an over-travel spring, a movable contact, a static contact, a conducting plate, a permanent magnetic mechanism, auxiliary mechanisms and a control unit. The assisting mechanisms are arranged on two sides of the base, the control unit is provided with a power module, a central processing module, a voltage sampling module, a coil control module and a communication module, the central processing module is respectively connected with the power module, the coil control module, the voltage sampling module and the communication module, and the central processing module is provided with a remote control RS485 communication interface and a high-speed CPU for data analysis and processing. The intelligent alternating-current contactor changes the stacking form of an existing contactor, and has the advantages of high intelligent degree, simple debugging and maintenance and reliable running.
Description
Technical field
The utility model relates to a kind of intelligent AC contactor, belongs to electric automatization control technology field.
Background technology
The conventional AC contactor mainly is made up of electromagnetic system, contact system, arc quenching system and other mechanical part, rely on the variation of external voltage to carry out mechanical action, when contactor solenoid no power, the deadweight of the reaction force of spring and armature core makes main contacts keep open position, when solenoid was connected control voltage by control loop, electromagnetic force overcomes the reaction force of spring inhaled armature to fixed core, drives the main contacts closure, connect circuit, auxiliary contact moves thereupon.
The conventional AC contactor is the long-term closure that keeps in touch the device major loop by the reaction force that electromagnetic force overcomes spring force, must be charged for a long time when therefore contactor is worked, coil causes temperature raise (generally coil working temperature must not above 65 ℃) through the certain heat of after a while operation accumulation, in case some external factor causes the coil heat radiation bad, then can produce the coil burnout phenomenon, and opening velocity is slow, the easy adhesion of contact.Also there is at present enterprise to use the permanent magnetism technology and produces the A.C. contactor that has control unit, control unit is to control permanent magnet mechanism adhesive and disjunction by the variation of the control permanent magnet mechanism interior loop sense of current, thereby reaches the break-make of control A.C. contactor major loop.Its structure mainly comprises pedestal, upper shell, lower house, cover plate, crossbeam, back shaft, excess of stroke spring, moving contact, fixed contact, conductive plate, permanent magnet mechanism, auxiliary body and control unit, auxiliary body adopts stacking pattern to place topmost, very big change has all been arranged on its performance and the structure, reliability is greatly improved, but intelligent degree is not high, especially to the control of coil in the contactor permanent magnet mechanism.Existing coil control technology is to come the work of trigger winding control circuit actuating coil by the circuit that a large amount of large power, electrically sub-elements are formed, because the circuit more complicated that a large amount of electronic components is formed, so the cooperation between the electronic component is very accurate, if components and parts burn out, entire circuit may just can not be worked, especially when the rolling electricity appears in spread of voltage, the easier triggering signal of burning or mistake occurring of electronic component, make contactor not work or trip, cause accidents such as equipment parking, can not guarantee the long-term stability of equipment, operation reliably.
The utility model content
The purpose of this utility model is at the deficiency that has coil control existence in permanent magnet AC contactor construction and the permanent magnet mechanism now, and a kind of new structure is provided, and intelligent degree height is debugged, safeguarded simply, reliable A.C. contactor.
The purpose of this utility model is achieved through the following technical solutions, intelligent AC contactor, comprise pedestal, upper shell, lower house, cover plate, crossbeam, back shaft, excess of stroke spring, moving contact, fixed contact, conductive plate, permanent magnet mechanism, auxiliary body and control unit, it is characterized in that described auxiliary body is arranged on the pedestal both sides, described control unit is provided with power module, central processing module, the voltage sample module, the coil control module, communication module, central processing module respectively with power module, the coil control module, the voltage sample module, communication module links to each other, the high-speed CPU that central processing module is provided with Long-distance Control RS485 communication interface and carries out data analysis and processing.
CPU in the described central processing module adopts C8051F410.
The utility model has changed existing contactor stacking pattern, and auxiliary body places the pedestal both sides, about the employing, about space structure, be easy to install and maintain.Signal transmission between its circuit: energized, power supply is provided for respectively central processing module, communication module, coil control module, voltage sampling circuit through the processing of power module.The control voltage sampling signal enters central cpu through signal processing and handles, and the signal after the processing is sent to the coil control module, realizes the action of the permanent magnet mechanism of controlling simultaneously.Auxiliary body places the pedestal both sides, about whole contactor adopts, about space structure design: cover plate-upper shell-pedestal-crossbeam-lower house is a up-down structure, and auxiliary body-crossbeam-auxiliary body is a left and right sides structure.Permanent magnet mechanism is installed in the lower house, links to each other with crossbeam by pull bar; Back shaft one end is fixed in the lower house, and excess of stroke spring is installed at the middle part, and the other end runs through crossbeam; The mode that auxiliary body adopts both sides to place, its skeleton patches with crossbeam by the crossbeam square hole and is connected.
Control unit is a kind ofly will include power module, central processing module, coil control module, voltage sample module, the interconnected control circuit of communication module, has changed the control circuit that a large amount of electronic components of traditional control circuit are formed.Its central processing module links to each other with power module, coil control module, voltage sample module, communication module respectively, and central processing module adopts CPU to carry out data processing, also has Long-distance Control RS485 communication interface.Central processing module is handled from voltage sample module controls voltage signal by monitoring in real time, and go out magnitude of voltage in the shortest Time Calculation, when magnitude of voltage is greater than or less than set point, the CPU master chip can carry out corresponding processing mode, and realizes the divide-shut brake of coil by the coil control module.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an A-A sectional structure schematic diagram among Fig. 1;
Fig. 3 is a decomposition texture schematic diagram of the present utility model;
Fig. 4 is a control unit circuit block diagram of the present utility model;
Among the figure, 1 cover plate, 2 upper shells, 3 fixed contacts, 4 pedestals, 5,14 auxiliary bodies, 6 connect row, 7 moving contacts, 8 permanent magnet mechanisms, 9 terminals, 10 lower houses, 11 back shafts, 12 pull bars, 13 crossbeams, 15 stationary contact bracket.
Embodiment
Further specify the utility model in conjunction with the accompanying drawings, as shown in Figure 1, 2, 3, the utility model is the improvement on existing contactor construction basis, comprises upper cover plate 1, upper shell 2, pedestal 4, fixed contact 3 on the pedestal 4, crossbeam 13, the moving contact 7 on the crossbeam 13, auxiliary body 5,14, pull bar 12, control circuit, permanent magnet mechanism 8; Pull bar 12 in the permanent magnet mechanism links to each other with crossbeam 13, and auxiliary body 5,14 patches with crossbeam with crossbeam 13 square holes by skeleton and is connected.When contactor carries out feed motion, pull bar 12 drags crossbeam 13 and the contact bridge in the auxiliary body 5,14 that crossbeam links to each other moves, when moving iron core that links to each other with pull bar 12 in the permanent magnet mechanism and permanent magnet adhesive, each contact point links to each other in fixed contact 3 on moving contact 7 and the pedestal 4 and the auxiliary body, finishes combined floodgate; Otherwise carry out the separating brake action.
As shown in Figure 4, control unit of the present utility model is to have the control circuit of combinations such as power module, central processing module, coil control module, voltage sample module, communication module.Energized, power supply is provided for respectively central processing module, communication module, coil control module, voltage sample module through the processing of power module, voltage sample module controls voltage sampling signal enters central processing module through signal processing, signal after the processing is sent to the coil control module, realizes the divide-shut brake action of the permanent magnet mechanism of controlling simultaneously.
The utility model central processing module CPU master chip adopts high speed C8051F410, and has Long-distance Control RS485 communication interface, can carry out the remote real-time monitoring operation.
Claims (2)
1. intelligent AC contactor, comprise pedestal, upper shell, lower house, cover plate, crossbeam, back shaft, excess of stroke spring, moving contact, fixed contact, conductive plate, permanent magnet mechanism, auxiliary body and control unit, it is characterized in that described auxiliary body is arranged on the pedestal both sides, described control unit is provided with power module, central processing module, the voltage sample module, the coil control module, communication module, central processing module respectively with power module, the coil control module, the voltage sample module, communication module links to each other, the high-speed CPU that central processing module is provided with Long-distance Control RS485 communication interface and carries out data analysis and processing.
2. intelligent AC contactor according to claim 1 is characterized in that the CPU in the described central processing module adopts C8051F410.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202539377U CN201708096U (en) | 2010-07-02 | 2010-07-02 | Intelligent alternating-current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202539377U CN201708096U (en) | 2010-07-02 | 2010-07-02 | Intelligent alternating-current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708096U true CN201708096U (en) | 2011-01-12 |
Family
ID=43445251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202539377U Expired - Lifetime CN201708096U (en) | 2010-07-02 | 2010-07-02 | Intelligent alternating-current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201708096U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051053A (en) * | 2011-10-13 | 2013-04-17 | 江西光景电力设备有限公司 | Module special for charge control box |
| CN103258688A (en) * | 2012-02-16 | 2013-08-21 | 高建忠 | Anti-explosion reactive power contactor |
-
2010
- 2010-07-02 CN CN2010202539377U patent/CN201708096U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051053A (en) * | 2011-10-13 | 2013-04-17 | 江西光景电力设备有限公司 | Module special for charge control box |
| CN103258688A (en) * | 2012-02-16 | 2013-08-21 | 高建忠 | Anti-explosion reactive power contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |