CN205921546U - Three -phase AC rolling door machine braking circuit that connection in series -parallel set up - Google Patents
Three -phase AC rolling door machine braking circuit that connection in series -parallel set up Download PDFInfo
- Publication number
- CN205921546U CN205921546U CN201620948324.2U CN201620948324U CN205921546U CN 205921546 U CN205921546 U CN 205921546U CN 201620948324 U CN201620948324 U CN 201620948324U CN 205921546 U CN205921546 U CN 205921546U
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- phase
- winding
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- door roller
- parallel
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Abstract
The utility model relates to a three -phase AC rolling door machine braking circuit that connection in series -parallel set up, including brake solenoid and three phase bridge, brake solenoid is equipped with parallel winding and series winding, the zero line of three any congruence powers of taking a fancy to at the three -phase rolling door machine power input end is connected respectively at parallel winding's both ends, three phase bridge's output is connected respectively at series winding's both ends, and the three -phase winding's of three -phase rolling door machine motor end is connected respectively to three phase bridge's input. The utility model discloses the solenoid that enables to brake produces great electromagnetic force and opens braking system rapidly when rolling door machine starts, rolling door machine starts the back operating current and reduces, practices thrift the electric energy.
Description
Technical field
This utility model is related to rolling screen door technical field, and more particularly, to a kind of three-phase alternating current door roller of connection in series-parallel setting is stopped
Car circuit.
Background technology
Electric rolling door lifting is driven by door roller, and rolling screen door lifting puts in place or midway stops, and not only door roller motor will
Shut down, also door roller will be braked, otherwise due to the weight of rolling screen door itself, rolling screen door can down be fallen.
Existing three-phase alternating current door roller brake gear is mainly by brake disc, brake block, brake spring and electric magnet (brake
Solenoid) composition, under door roller halted state, promote brake block extruding brake disc to be braked by the thrust of brake spring；
During door roller work, electric magnet energising attracts brake block, so that brake block is separated with brake disc and opens brake system, is maintained to
Door roller shuts down.Traditional three-phase alternating current door roller brake solenoid is usually directly to be powered by live wire and zero line, stops
The winding of car solenoid and alternating current generator is to be arranged in parallel, and the voltage at its two ends is constant, therefore, no matter being electric magnet
The moment of brake system is opened in energising, still opens the maintenance state after brake system, and the size of current of brake solenoid is
Identical.In fact, before electric magnet is not operating, because the iron core of electric magnet and brake block have a certain distance, depositing therebetween
In magnetic gap, the moment of electromagnet action needs larger electric current, and after electric magnet closure, unshakable in one's determination and brake block tightly combines, and is formed
Closed magnetic circuit, magnetic flux increases, and maintains the electric current of electric magnet closure can greatly reduce.Therefore, existing exchange door roller brake
Circuit can be opened rear braking solenoid current because of brake system and not reduce, and lead to solenoid heating of braking, waste electric energy,
Have an effect on the overall performance of brake system.
Utility model content
This utility model overcomes the deficiencies in the prior art, there is provided one kind can make brake solenoid start in door roller
When produce larger electromagnetic force and open rapidly brake system, after door roller starts, operating current reduces, the three-phase alternating current of saves energy
Door roller braking circuit.
This utility model is achieved through the following technical solutions:
A kind of three-phase alternating current door roller braking circuit of connection in series-parallel setting, including brake solenoid and three-phase commutation bridge；
Described brake solenoid is provided with parallel winding and series connection winding；It is dynamo-electric that the two ends of described parallel winding connect three-phase rolling door respectively
Any phase in machine input three-phase and the zero line of power supply；The two ends of described series connection winding connect the defeated of three-phase commutation bridge respectively
Go out end, the input of three-phase commutation bridge connects the end of the three-phase windings of three-phase door roller motor respectively.
In the technical program, the parallel winding of brake solenoid is equivalent to, its work in parallel with the three-phase windings of motor
Electric current and the electromagnetic force producing are constant before and after electric motor starting；Series connection winding is equivalent to the three-phase windings series connection with motor,
In electric motor starting, starting current is larger, generally the 3～5 of running current times, and the electric current of series connection winding is also normal work
Make electric current 3～5 times, series connection winding produces larger electromagnetic force, adds that the electromagnetic force that parallel winding produces makes brake block overcome
The thrust of brake spring separates with brake disc, and opening brake system makes motor normally start, and after electric motor starting, electric current reduces rapidly,
The electric current of series connection winding also reduces rapidly, but now brake system is in open mode, only needs less electric current can maintain
Open mode, the electromagnetic force of series connection winding and the electromagnetic force of parallel winding can continue to open mode, thus can significantly subtract
The power of little parallel winding, makes brake solenoid temperature rise little, saves energy, and job stability is high；And maintain brake system
The electromagnetic force of open mode is by parallel winding and the common offer of series connection winding, and individually provides electromagnetic force phase by series connection winding
Relatively, it is possible to reduce the number of turn of series connection winding, it is to avoid the service behaviour of impact motor.
Preferably, also include single-phase rectification bridge, it is defeated that the input of this single-phase rectification bridge connects three-phase door roller motor respectively
Enter the zero line of any phase and power supply held in three-phase, outfan connects the two ends of parallel winding respectively.Alternating current is through single-phase whole
Stream bridge inputs parallel winding after being rectified into unidirectional current, and parallel winding work can be made more stable.
Preferably, the impedance of described series connection winding is the 2%～4% of three-phase door roller motor three-phase windings impedance.Series connection around
The impedance of group is in be affected less, not interfering with the normal work of motor on the power of motor during this scope, may also provide enough
Electromagnetic force, performance reaches preferable state.
The beneficial effects of the utility model are: by brake solenoid be divided into parallel winding and series connection winding, by parallel connection around
Group provides stable electromagnetic force, and series connection winding can produce larger electromagnetic force and open brake system rapidly when door roller starts,
Operating current can be reduced accordingly after opening brake system again, reduce the overall power of brake solenoid, make brake electromagnetic wire
Coil temperature rise is little, saves energy, does not interfere with the service behaviour of door roller motor again.
Brief description
Fig. 1 is circuit diagram of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, thus make apparent clear and definite to protection domain of the present utility model
Define.
As shown in figure 1, embodiment of the present utility model, including brake solenoid and three-phase commutation bridge ur2；Described brake
Solenoid is provided with parallel winding ya1 and series connection winding ya2；The two ends of described parallel winding ya1 connect three-phase door roller respectively
Any phase in motor m input three-phase and the zero line n of power supply；It is whole that the two ends of described series connection winding ya2 connect three-phase respectively
The outfan of stream bridge ur2, the input of three-phase commutation bridge ur2 connects the end of the three-phase windings of three-phase door roller motor m respectively.
In the present embodiment, parallel winding ya1 of brake solenoid is equivalent to, its work in parallel with the three-phase windings of motor m
Making electric current and the electromagnetic force of generation is constant before and after motor m starts；Series connection winding ya2 be equivalent to the three-phase of motor m around
Group series connection, when motor m starts, starting current is larger, generally the 3～5 of running current times, the electricity of series connection winding ya2
Stream is also 3～5 times of running current, and series connection winding ya2 produces larger electromagnetic force, adds what parallel winding ya1 produced
Electromagnetic force makes brake block overcome the thrust of brake spring to separate with brake disc, and opening brake system makes motor m normally start, motor
After m starts, electric current reduces rapidly, and the electric current of series connection winding ya2 also reduces rapidly, but now brake system is in open mode,
Only need less electric current can be maintained open state, the electromagnetic force of series connection winding ya2 and the electromagnetic force of parallel winding ya1 can continue
It is maintained open state, thus can greatly reduce the power of parallel winding ya1, make brake solenoid temperature rise little, saves energy,
Job stability is high；And maintain brake system open mode electromagnetic force be by parallel winding ya1 and series connection winding ya2 common
There is provided, provide electromagnetic force to compare with independent by series connection winding, it is possible to reduce the number of turn of series connection winding, it is to avoid impact motor m
Service behaviour.
In the present embodiment, also include single-phase rectification bridge ur1, the input of this single-phase rectification bridge ur1 connects three-phase volume respectively
Any phase (as c phase) in the dynamo-electric machine m input three-phase of door and the zero line n of power supply, outfan connects parallel winding ya1 respectively
Two ends.Alternating current is rectified into input parallel winding ya1 after unidirectional current through single-phase rectification bridge ur1, can make parallel winding ya1 work
Make more stable.
In the present embodiment, the impedance of described series connection winding ya2 be three-phase door roller motor m three-phase windings impedance 2%～
4%.The impedance of series connection winding ya2 is in be affected less, not interfering with the normal work of motor m on the power of motor m during this scope
Make, may also provide enough electromagnetic forces, performance reaches preferable state.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model does not limit to
In this, any change or replacement expected without creative work, all should cover within protection domain of the present utility model.
Therefore, protection domain of the present utility model should be defined by the protection domain that claims are limited.
Claims (3)
1. a kind of connection in series-parallel setting three-phase alternating current door roller braking circuit it is characterised in that: include brake solenoid and three
Commutating phase bridge；Described brake solenoid is provided with parallel winding and series connection winding；The two ends of described parallel winding connect three respectively
Any phase in phase door roller input end of motor three-phase and the zero line of power supply；The two ends of described series connection winding connect three-phase respectively
The outfan of rectifier bridge, the input of three-phase commutation bridge connects the end of the three-phase windings of three-phase door roller motor respectively.
2. a kind of connection in series-parallel setting according to claim 1 three-phase alternating current door roller braking circuit it is characterised in that: also
Including single-phase rectification bridge, the input of this single-phase rectification bridge connects in three-phase door roller input end of motor three-phase any one respectively
The mutually zero line with power supply；Outfan connects the two ends of parallel winding respectively.
3. according to a kind of connection in series-parallel setting described in claim 1 three-phase alternating current door roller braking circuit it is characterised in that: described
The impedance of series connection winding is the 2%～4% of three-phase door roller motor three-phase windings impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948324.2U CN205921546U (en) | 2016-08-26 | 2016-08-26 | Three -phase AC rolling door machine braking circuit that connection in series -parallel set up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948324.2U CN205921546U (en) | 2016-08-26 | 2016-08-26 | Three -phase AC rolling door machine braking circuit that connection in series -parallel set up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205921546U true CN205921546U (en) | 2017-02-01 |
Family
ID=57868707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620948324.2U Expired - Fee Related CN205921546U (en) | 2016-08-26 | 2016-08-26 | Three -phase AC rolling door machine braking circuit that connection in series -parallel set up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205921546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3993231A1 (en) * | 2020-10-29 | 2022-05-04 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Unlocking of an electromagnetic brake of a motor |
-
2016
- 2016-08-26 CN CN201620948324.2U patent/CN205921546U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3993231A1 (en) * | 2020-10-29 | 2022-05-04 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Unlocking of an electromagnetic brake of a motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20170826 |