CN205778452U - A kind of exchange door roller braking control device - Google Patents
A kind of exchange door roller braking control device Download PDFInfo
- Publication number
- CN205778452U CN205778452U CN201620464288.2U CN201620464288U CN205778452U CN 205778452 U CN205778452 U CN 205778452U CN 201620464288 U CN201620464288 U CN 201620464288U CN 205778452 U CN205778452 U CN 205778452U
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- China
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- parallel
- door roller
- brake
- winding
- brake block
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- Expired - Fee Related
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Abstract
This utility model relates to a kind of exchange door roller braking control device, the brake electric magnetic coil including the brake disc being fixed on door roller motor shaft, being fixed on door roller housing, brake block, spring；Described brake block is located between brake disc and brake electric magnetic coil, and this brake block can axially move；Described spring is located between brake block and housing, and pushes brake block to brake disc；Described brake electric magnetic coil is provided with the first parallel winding and the second parallel winding, described first parallel winding and door roller motor main winding are in parallel, described second parallel winding is parallel with time relay coil, and the second parallel winding is in parallel with door roller motor main winding again after first connecting with the normally-closed contact of the time relay.This utility model can reduce the operating current of brake electric magnetic coil, saves energy.
Description
Technical field
This utility model relates to rolling screen door technical field, particularly relates to a kind of exchange door roller braking control device.
Background technology
Rolling screen door lifting is driven by door roller, and rolling screen door lifting puts in place or midway stops, and not only door roller motor to shut down, and also to brake door roller, and otherwise due to the weight of rolling screen door self, rolling screen door can down be fallen.
Existing exchange door roller braking control device is mainly made up of brake disc, brake block, brake spring and solenoid, under door roller halted state, the thrust of spring promotes brake block and brake disc to be in close contact and brakes；During door roller work, solenoid energising attracts brake block, makes brake disc separate with brake block, is maintained to door roller and shuts down.Solenoid is general and door roller motor main winding is in parallel, owing to the voltage at solenoid two ends is fixing, therefore, it is no matter solenoid energising moment of being sucked away from brake block, or maintaining brake block and the released state of brake disc, the size of current of solenoid is identical.Actually, before electric magnet is not operating, owing to iron core and the armature of electric magnet exist magnetic gap, the most also there is a certain distance, so the moment of electric magnet action needs bigger electric current, and after electric magnet Guan Bi, unshakable in one's determination and armature tightly combines, and does not has therebetween magnetic gap, forms closed magnetic circuit, magnetic flux increases, and maintains the electric current of electric magnet Guan Bi just can be greatly reduced.It is, solenoid energising is sucked away from the moment of brake block, it is desirable to there is bigger electromagnetic attraction, namely requires that solenoid has bigger electric current, and maintenance is sucked away from state and has only to less electric current.Therefore, the solenoid of existing Parallel Design wastes a part of electric energy, also results in solenoid excessive heating.
Utility model content
This utility model overcomes the deficiencies in the prior art, it is provided that the door roller braking control device of a kind of energy saves energy.
This utility model is achieved through the following technical solutions:
A kind of exchange door roller braking control device, the brake electric magnetic coil including the brake disc being fixed on door roller motor shaft, being fixed on door roller housing, brake block, spring；Described brake block is located between brake disc and brake electric magnetic coil, and this brake block can axially move；Described spring is located between brake block and housing, and pushes brake block to brake disc；Described brake electric magnetic coil is provided with the first parallel winding and the second parallel winding, described first parallel winding and door roller motor main winding are in parallel, described second parallel winding is parallel with the time relay, and the second parallel winding is in parallel with the coil of the time relay and door roller motor main winding again after first connecting with the normally-closed contact of the time relay.During door roller electric motor starting, time relay contact is normally closed, and the first parallel winding and the second parallel winding are all energized, and produces bigger electromagnetic force, makes brake block overcome the thrust of spring to separate with brake disc；After door roller electric motor starting, time relay normally-closed contact disconnects after time delay after a while, the second parallel winding power-off, is only provided electromagnetic force by the first parallel winding, continues to the released state of brake block and brake disc.So, whole brake electric magnetic coil just need not maintain bigger electric current always, thus has saved electric energy.
Further, described parallel winding is also associated with rectifier bridge stack, and the input of this rectifier bridge stack and door roller motor main winding are in parallel, and outfan connects the two ends of parallel winding.Alternating current inputs the first parallel winding after becoming unidirectional current by rectifier bridge stack all wave rectification again, can eliminate the vibrations unshakable in one's determination of the first parallel winding and eddy current, and the electromagnetic force making the first parallel winding is more stable.
The beneficial effects of the utility model are: brake electric magnetic coil is divided into the first parallel winding and the second parallel winding, time relay coil in parallel on the circuit of the second parallel winding, second parallel winding is in parallel with door roller motor main winding again after first connecting with time relay normally-closed contact, it is provided that bigger electromagnetic force when door roller electric motor starting, door roller can correspondingly reduce again electromagnetic force and maintain brake disc and the released state of brake block after starting, thus reduce the maintenance work electric current of brake electric magnetic coil, saves energy.
Accompanying drawing explanation
Fig. 1 is a kind of sectional view exchanging door roller braking control device of this utility model.
Fig. 2 is a kind of circuit diagram exchanging door roller braking control device of this utility model.
Detailed description of the invention
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 and feature can be easier to be readily appreciated by one skilled in the art, thus protection domain of the present utility model is made apparent clear and definite defining.
As shown in Figure 1 and Figure 2, a kind of exchange door roller braking control device, including the brake disc 2 being fixed on door roller motor shaft 1, the brake electric magnetic coil 4 being fixed on door roller housing 3, brake block 5, spring 6；Described brake block 5 is located between brake disc 2 and brake electric magnetic coil 4, and this brake block 5 can axially move；Described spring 6 is located between brake block 5 and housing 3, and pushes brake block 5 to brake disc 2；Described brake electric magnetic coil 4 is provided with the first parallel winding 41 and the second parallel winding 42, described first parallel winding 41 and door roller motor main winding 7 are in parallel, described second parallel winding 42 is parallel with the time relay 8, and the second parallel winding 42 is in parallel with the coil of the time relay 8 and door roller motor main winding 7 again after first connecting with the normally-closed contact of the time relay 8.During door roller electric motor starting, the time relay 8 contact is normally closed, and the first parallel winding 41 and the second parallel winding 42 are all energized, and produce bigger electromagnetic force, makes brake block 5 overcome the thrust of spring 6 and brake disc 2 to separate；After door roller electric motor starting, the time relay 8 normally-closed contact disconnects after time delay after a while, the second parallel winding 42 power-off, is only provided electromagnetic force by the first parallel winding 41, continues to brake block 5 and the released state of brake disc 2.So, whole brake electric magnetic coil 4 just need not maintain bigger electric current always, thus has saved electric energy.
Described parallel winding 41 is also associated with rectifier bridge stack 9, and the input of this rectifier bridge stack 9 and door roller motor main winding 7 are in parallel, and outfan connects the two ends of parallel winding 41.Alternating current inputs the first parallel winding 41 again after becoming unidirectional current by rectifier bridge stack 9 all wave rectification, can eliminate vibrations and the eddy current of the first parallel winding 41 iron core, and the electromagnetic force making the first parallel winding 41 is more stable.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model is not limited thereto, any change expected without creative work or replacement, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims are limited.
Claims (2)
1. an exchange door roller braking control device, the brake electric magnetic coil including the brake disc being fixed on door roller motor shaft, being fixed on door roller housing, brake block, spring；Described brake block is located between brake disc and brake electric magnetic coil, and this brake block can axially move；Described spring is located between brake block and housing, and pushes brake block to brake disc；It is characterized in that: described brake electric magnetic coil is provided with the first parallel winding and the second parallel winding, described first parallel winding and door roller motor main winding are in parallel, described second parallel winding is parallel with the time relay, and the second parallel winding is in parallel with the coil of the time relay and door roller motor main winding again after first connecting with the normally-closed contact of the time relay.
A kind of exchange door roller braking control device the most according to claim 1, it is characterised in that: described parallel winding is also associated with rectifier bridge stack, and the input of this rectifier bridge stack and door roller motor main winding are in parallel, and outfan connects the two ends of parallel winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620464288.2U CN205778452U (en) | 2016-05-21 | 2016-05-21 | A kind of exchange door roller braking control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620464288.2U CN205778452U (en) | 2016-05-21 | 2016-05-21 | A kind of exchange door roller braking control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778452U true CN205778452U (en) | 2016-12-07 |
Family
ID=58118034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620464288.2U Expired - Fee Related CN205778452U (en) | 2016-05-21 | 2016-05-21 | A kind of exchange door roller braking control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778452U (en) |
-
2016
- 2016-05-21 CN CN201620464288.2U patent/CN205778452U/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 | ||
| 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: 20161207 Termination date: 20170521 |