CN2169202Y - Energy-saving AC contactor - Google Patents
Energy-saving AC contactor Download PDFInfo
- Publication number
- CN2169202Y CN2169202Y CN 93240886 CN93240886U CN2169202Y CN 2169202 Y CN2169202 Y CN 2169202Y CN 93240886 CN93240886 CN 93240886 CN 93240886 U CN93240886 U CN 93240886U CN 2169202 Y CN2169202 Y CN 2169202Y
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- China
- Prior art keywords
- resistance
- main contact
- moving
- electric capacity
- circuit
- 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
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Abstract
The utility model discloses an energy saving AC contactor. A set of electromagnet mechanism is added on the basis of an original AC contactor. The electromagnet mechanism is composed of a movable iron core, an actuating coil of the movable iron core, a return spring of the movable iron core, a close plug of a main contact of the movable iron core, etc. A main contact closing socket is arranged on one corresponding side of a connecting body near the main contact closing plug, a control circuit board is arranged in the casing of the contactor, and a control circuit is arranged on the control circuit board. The utility model can save a large quantity of energy, prolong the service life of a sucking coil and save large amount of enameled wire. The iron core of the sucking coil can be made of cast iron or cast steel, and large quantity of silicon steel pieces can be saved. In addition, the utility model has the performance of the under voltage protection of controlled electrical equipment.
Description
The utility model relates to a kind of low-voltage electrical apparatus control element, particularly a kind of energy-saving alternating current contactor.
At present, the running of a lot of electric equipments and shutdown are to be controlled by the A.C. contactor that is arranged in the electric cabinet, must give the energising of the sucking coil in the A.C. contactor, just can make its operate as normal.The sucking coil of this A.C. contactor is switched on for a long time, and the energy of consumption is more, and coil makes its quickening damage and influences useful life because of the heating of energising meeting for a long time.In this A.C. contactor, in order to reduce magnetic loss and eddy current loss, its iron core is made of silicon steel sheet, so cost of manufacture and difficulty are bigger.In addition, this A.C. contactor does not have the under-voltage protection performance.
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, and a kind of well behaved energy-saving alternating current contactor is provided.
The purpose of this utility model is to realize like this.The utility model is the same with existing A.C. contactor a housing, be provided with fixed core 8, moving iron core 7, sucking coil 9 in it, on moving unshakable in one's determination 7 connector 11 is arranged, its upper end is provided with holddown spring 6 and moving main contact 5, and two contacts of moving main contact 5 are corresponding with quiet main contact input 3 and quiet main contact output 4 respectively.Unique distinction of the present utility model is: also be provided with electromagnet 19 on the housing of connector 11 sides, it is made up of the closed latch 17 of moving core 20, moving core actuation coil 21, actuation coil the end of a thread 22, latch 23, back-moving spring 24 and main contact.In the side relevant position of connector 11, have the closed jack 16 of a main contact near the closed latch 17 of main contact.In housing, also be provided with a circuit board, it is provided with control circuit, power input 29 joins with quiet main contact input 3 in the circuit, signal output part 31 joins with a pair of normally open contact 27, and main contact " shutoff " signal output part 30 joins to normally open contact 27 with another by moving core 20 and actuation coil the end of a thread 22 again.
Above-mentioned said control circuit is made up of power circuit, signal input circuit, voltage stabilizing circuit, accumulator and control circuit.Power circuit is by transformer L and bridge rectifier Z
1Form, output is connected to resistance R thereafter
1With potentiometer 32,, the two is with receiving capacitor C 3 one ends, capacitor C
3Other end ground connection, capacitor C
3Also join the emitter connecting resistance R of triode T with the base stage of triode T
3, resistance R
3Other end ground connection, the collector electrode of triode T and resistance R
2And signal output part 31 joins resistance R
2The other end and resistance R
4And R
7Join resistance R
7The other end and diode Z
2Negative pole, cut-off signals output 30 and capacitor C
1Join capacitor C
1Other end ground connection, diode Z
2Positive pole pass through resistance R
6With resistance R
1And power output end joins, and the anode of another termination controllable silicon A of " shutoff " signal output part 30, the control utmost point of controllable silicon A connect base stage and the resistance R of double-basis utmost point pipe B
5, resistance R
5Other end ground connection, the minus earth of controllable silicon A, the emitter of double-basis utmost point pipe B connects signal output part 31 and capacitor C
2, capacitor C
2Other end ground connection, another base stage connecting resistance R of double-basis utmost point pipe B
4, resistance R
4Other end connecting resistance R
2, R
7And the negative pole of voltage stabilizing didoe D, the plus earth of voltage stabilizing didoe D.
Above-mentioned said sucking coil 9, its iron core are to be made by cast iron.
The utility model is compared with original A.C. contactor has lot of advantages:
1. can save a large amount of electric energy.Original A.C. contactor is finished the control action of electric equipment by sucking coil 9 " energising " or " outage ".Want to make the continuous operation of Be Controlled electric equipment, sucking coil 9 will be switched on continuously.The utility model then is by the just outage of sucking coil 9 moments energising back, inserts rapidly in the closed pin hole 16 of main contact by the closed latch 17 of main contact, finishes the main contact closure and makes its operate as normal, and then sucking coil 9 is with no longer power consumption." disjunction " of main contact then is to drive latch 17 disengaging jacks 16 by the moving core 20 in the transistor control circuit (see figure 3) control electromagnet 19 to finish, fundamentally solved the problem of sucking coil 9 a large amount of power consumptions of original A.C. contactor, as an original 40A A.C. contactor sucking coil power is if that 32V is by double-shift work, every day, accumulative total was worked 12 hours, annual must power consumption be 115.2 degree to calculate 25 working days in every month.And the power consumption of sucking coil 9 of the present utility model calculates with " start " number of times, if by double-shift work, every day average " start " 50 times, every month with 25 working days, the sucking coil energising only is 0.016 second during each the start, then every year, be conduction time: 50 * 25 * 12 * 0.016 ÷ 3600=0.067(hour), if the sucking coil instantaneous power is 230VA, then annual power consumption only is: 0.067 * 230=15.41VAH=0.01541 degree.And the control circuit power consumption in the utility model also very little (0.432 degree), then two altogether power consumption only be 0.43841 degree, visible power consumption of the present utility model is significantly smaller than original A.C. contactor.
2. can prolong the life-span of sucking coil, save a large amount of enamelled wires, because of the sucking coil in the utility model is instantaneous energising, annual operating time accumulative total just 0.067 hour so sucking coil is not prone to the heating phenomenon, can make the life-span prolong more than 10 times.
3. can save a large amount of silicon steel sheets.Because compole is short during sucking coil " energising ", can consider magnetic loss and eddy current loss, so it is unshakable in one's determination to adopt cheap, simple cast iron of processing or cast steel to make, make it save a large amount of silicon steel sheets.
4. increased the under-voltage protection performance.Because the utility model transistor control circuit has the supervision effect to main power source; when circuit voltage drops to certain numerical value; transistor control circuit can send " shutoff " signal, makes the utility model " shutoff " by electromagnet 19, thereby has protected controlled electric equipment.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.Among the figure, 1 is plug-in strip, 2 is main power line, 3 is quiet main contact input (3), 4 is (3 of quiet main contact outputs, be used for connecting) with controlled device, 5 are (3 of moving main contacts, be used to connect 3,4, realize circuit turn-on and disjunction 3,4 disconnect circuit), 6 (are used to make 3 for holddown spring, 4,5 contacts are good), 7 for moving unshakable in one's determination, 8 is fixed core, 9 are moving sucking coil unshakable in one's determination, 10 is the end of a thread, and 11 is connector (being used to connect moving iron core 7 and moving main contact 5), and 12 are back-moving spring (being used to make iron core 7 and moving contact 5 to reset), 13 is latch (connecting moving iron core 7 and connector 11), 14 is left and right sides guide way, and 16 is the closed pin hole of main contact, and 17 is the closed latch of main contact, 18 is the closed latch bearing of main contact, 19 is main contact " disjunction " electromagnet, and 20 is moving core, and 21 is the moving core actuation coil, 22 is moving core actuation coil the end of a thread, 23 are bearing pin (being used to connect closed latch 17 of main contact and moving core 20), and 14 is the moving core back-moving spring, and 25 is the electromagnet set bolt.
Fig. 2 is the end view of Fig. 1.Among the figure, 15 is the front and back guide way, and 26 is normally closed auxiliary contact (about each a pair of), and 27 for often opening auxiliary contact (about each a pair of), and 28 are moving auxiliary contact (about each a pair of).
Fig. 3 is the transistor control circuit schematic diagram in the utility model.Among the figure, 29 is power input, and 30 is main contact " shutoff " signal output part, and 31 is the triode signal output part, and 32 is under-voltage selection potentiometer.
Structure shown in the drawings and circuit are exactly embodiment of the present utility model.During actual fabrication, electromagnet 19 is to be fixed on the housing with electromagnet set bolt 25.Transistor control circuit is produced on the printed circuit board (PCB), and this circuit board is fixed in the housing with bolt, and it is become one.Four installing holes are also arranged at the utility model bottom, and available bolt or screw are installed in power distribution cabinet or the operating desk.
Be by outage again after the sucking coil 9 moments energisings (0.016 second) (because sucking coil the end of a thread 10 is connected the moving automatic outage in 7 action backs unshakable in one's determination with a pair of normally closed auxiliary contact 26 own) during the utility model work.The closed latch 17 of main contact inserts rapidly in the closed pin hole 16 of main contact under the effect of moving core back-moving spring 24, reaches the purpose that main contact " closure " makes its operate as normal.Simultaneously; transistor control circuit is being controlled electromagnet 19; when decompression, under-voltage and people enter transistor control circuit for sending stopping signal, it will export " shutoff " current signal, make moving core 20 drive the closed latches 17 of main contacts rapidly and transfer in the closed jack 16 of main contact.Moving unshakable in one's determination 7 under the effect of back-moving spring 12, drives the active contact and resets, and main contact recovers " often opening " state, thereby A.C. contactor is quit work.
Claims (3)
1, a kind of energy-saving alternating current contactor, include a housing, be provided with fixed core (8) in it, moving (7) unshakable in one's determination, inhale line coil (9), moving (7) unshakable in one's determination are provided with connector 11, its upper end is provided with holddown spring (6) and moving main contact (5), two contacts of moving main contact (5) are corresponding with quiet main contact input (3) and quiet main contact output (4) respectively, it is characterized in that: also be provided with electromagnet (19) on the housing of connector (11) side, it is by moving core (20), moving core actuation coil (21), actuation coil the end of a thread (22), latch (23), the closed latch of back-moving spring (24) and main contact (17) is formed; In the side relevant position of connector (11), have the closed jack (16) of a main contact near the closed latch of main contact (17); In housing, also be provided with a circuit board, it is provided with control circuit, power input in the circuit (29) joins with quiet main contact input (3), signal output part (31) joins with a pair of normally open contact (27), and main contact " shutoff " signal output part (30) joins to normally open contact (27) with another by moving core (20) and actuation coil (22) again.
2, energy-saving alternating current contactor according to claim 1, it is characterized in that: above-mentioned said control circuit is made up of power circuit, signal input circuit, voltage stabilizing circuit, accumulator and control circuit, and power circuit is by transformer (L) and bridge rectifier (Z
1) constitute, output thereafter is connected to resistance (R
1) and potentiometer (32), the two is with receiving electric capacity (C
3) end, electric capacity (C
3) other end ground connection, electric capacity (C
3) also join the emitter connecting resistance (R of triode (T) with the base stage of triode (T)
3), resistance (R
3) other end ground connection, the collector electrode of triode (T) and resistance (R
2) and signal output part (31) join resistance (R
2) the other end and resistance (R
4) and (R
7) join resistance (R
7) the other end and diode (Z
2) negative pole and " shutoff " signal output part (30) and electric capacity (C
1) join electric capacity (C
1) other end ground connection, diode (Z
2) positive pole by resistance (R
6) and resistance (R
1) and power output end join, the anode of another termination controllable silicon (A) of " shutoff " signal output part (30), the control utmost point of controllable silicon (A) meet the base stage and the resistance (R of double-basis utmost point pipe (B)
5), resistance (R
5) other end ground connection, the minus earth of controllable silicon (A), the emitter of double-basis utmost point pipe (B) meets signal output part (31) and electric capacity (C
2), electric capacity (C
2) other end ground connection, another base stage connecting resistance (R4) of double-basis utmost point pipe (B), resistance (R
4) other end connecting resistance (R
2), (R
7) and the negative pole of voltage stabilizing second tube sheet (D), the plus earth of voltage stabilizing second tube sheet (D).
3, energy-saving alternating current contactor according to claim 1 is characterized in that: above-mentioned said sucking coil (9), its iron core are to be made by cast iron or cast steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93240886 CN2169202Y (en) | 1993-09-29 | 1993-09-29 | Energy-saving AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93240886 CN2169202Y (en) | 1993-09-29 | 1993-09-29 | Energy-saving AC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2169202Y true CN2169202Y (en) | 1994-06-15 |
Family
ID=33815018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93240886 Expired - Fee Related CN2169202Y (en) | 1993-09-29 | 1993-09-29 | Energy-saving AC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2169202Y (en) |
-
1993
- 1993-09-29 CN CN 93240886 patent/CN2169202Y/en not_active Expired - Fee Related
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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 |