CN205876151U - Improved generation ac door - rolling machine braking circuit - Google Patents
Improved generation ac door - rolling machine braking circuit Download PDFInfo
- Publication number
- CN205876151U CN205876151U CN201620903848.XU CN201620903848U CN205876151U CN 205876151 U CN205876151 U CN 205876151U CN 201620903848 U CN201620903848 U CN 201620903848U CN 205876151 U CN205876151 U CN 205876151U
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- China
- Prior art keywords
- brake
- time relay
- magnetic coil
- electric magnetic
- electric
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- Expired - Fee Related
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Abstract
The utility model relates to an improved generation ac door - rolling machine braking circuit, including brake solenoid, resistance and time relay, brake solenoid and series resistance, time relay's normally closed contact and resistor parallel with, circuit input end's both ends are connected at the both ends of time relay coil. The utility model discloses the solenoid that enables to brake produces great electromagnetic force and opens braking system rapidly when rolling door machine starts, it is less that rolling door machine starts the back operating current, easily produces again, the fault rate is low, energy -conserving.
Description
Technical field
This utility model relates to rolling screen door technical field, particularly relates to a kind of modified model exchange door roller braking 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 is wanted
Shutting down, also to brake door roller, otherwise due to the weight of rolling screen door self, rolling screen door can down be fallen.
Existing exchange door roller brake gear is mainly by brake disc, brake block, brake spring and electric magnet (brake electromagnetism
Coil) composition, under door roller halted state, the thrust of brake spring promote brake block extruding brake disc to brake；Rolling door
During machine work, electric magnet energising attracts brake block, makes brake disc separate with brake block and opens brake system, is maintained to rolling door
Machine shuts down.Traditional exchange door roller brake electric magnetic coil is usually directly is powered by the alternating current of 220V, and brake electromagnetism
The winding of coil and alternating current generator is to be arranged in parallel, and the voltage at its two ends is constant, therefore, no matter is that electric magnet energising is beaten
Opening the moment of brake system, still open the maintenance state after brake system, the size of current of brake electric magnetic coil is identical.
It practice, before electric magnet is not operating, owing to iron core and the brake block of electric magnet have a certain distance, there is therebetween magnetic gap,
The moment of electric magnet action needs bigger electric current, and after electric magnet Guan Bi, iron core and brake block tightly combine, and form closed magnetic
Road, magnetic flux increases, and maintains the electric current of electric magnet Guan Bi just can be greatly reduced.Therefore, existing exchange door roller solenoid circuit
There are the following problems: one is that brake system is opened rear braking solenoid current and do not reduced, and causes brake electric magnetic coil to generate heat,
Waste electric energy；Two is that brake electric magnetic coil is operated in high voltage, and the multi-thread footpath of the brake electric magnetic coil number of turn to be made is little, causes raw
Dystocia degree is big, fault rate is high.
Utility model content
This utility model overcomes the deficiencies in the prior art, it is provided that one can make brake electric magnetic coil start at door roller
Time produce bigger electromagnetic force and open rapidly brake system, after door roller starts, operating current is less, the most easily production, failure rate is low,
Energy-conservation exchange door roller braking circuit.
This utility model is achieved through the following technical solutions:
A kind of modified model exchange door roller braking circuit, including brake electric magnetic coil, resistance and the time relay；Described stop
Car solenoid and resistant series；The normally-closed contact of the described time relay and resistor coupled in parallel；Described time relay coil
Two ends connect the two ends of circuit input end.
During work, when door roller just starts, braking circuit input simultaneously electric, time relay coil also electric,
Because the time relay has the effect of deferred action, its normally-closed contact still closes when starting, and current bypasses resistive continued through the time
The normally-closed contact of electrical equipment is to brake solenoid, and because of electric current not through resistance, the electric current of circuit is relatively big, brake electric magnet-wire
Circle produces bigger electromagnetic force makes brake block overcome the thrust of brake spring to separate with brake disc, opens brake system and makes door roller
Normal startup；The time relay is after time delay after a while, and its normally-closed contact disconnects, and seals in resistance in circuit, circuit
Electric current reduces rapidly, but now brake system has been in open mode, and brake electric magnetic coil only needs less electric current just can maintain
Open mode, thus can reduce the power of brake electric magnetic coil, makes brake electric magnetic coil temperature rise little, saves energy；Meanwhile, by
The running voltage maintaining brake system to open in brake electric magnetic coil is relatively low, and coil turn may be reduced by, and line footpath can be done greatly, relatively
Easily produce, failure rate is low.
Further, described brake electric magnetic coil is also associated with rectifier bridge stack, the input of this rectifier bridge stack and resistant series,
Outfan connects the two ends of brake electric magnetic coil.Alternating current rectified bridge heap inputs brake electric magnetic coil after being rectified into unidirectional current,
The work of brake electric magnetic coil can be made more stable.
The beneficial effects of the utility model are: series resistance in braking circuit, at the two ends parallel connection time relay of resistance
The normally-closed contact of device, utilizes the delay effect of the time relay, and when making door roller start, brake electric magnetic coil produces bigger electricity
Magnetic force opens brake system, when maintaining again the open mode of brake system with less electric current, when making brake electric magnetic coil work
Power is little, and temperature rise is little, saves energy；Alternating current rectified bridge heap inputs brake electric magnetic coil after being rectified into unidirectional current, can make
The work of brake electric magnetic coil is more stable；The brake electric magnetic coil number of turn is few, failure rate is low, convenient production.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present 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
Can be easier to be readily appreciated by one skilled in the art with feature, thus protection domain of the present utility model is made apparent clearly
Define.
As it is shown in figure 1, embodiment of the present utility model, including brake electric magnetic coil YA, resistance R and time relay KT；
Described brake electric magnetic coil YA and resistance R series connection；The normally-closed contact KT and resistance R of the described time relay is in parallel；The described time
The two ends of relay K T coil connect the two ends of circuit input end.
During work, when door roller just starts, braking circuit input simultaneously electric, time relay KT coil is also
Electricity, because time relay KT has the effect of deferred action, its normally-closed contact KT still closes when starting, current bypasses resistive R,
Powering to brake electric magnetic coil YA through the normally-closed contact KT of the time relay, because of electric current not through resistance R, the electric current of circuit is relatively
Greatly, brake electric magnetic coil YA produces bigger electromagnetic force makes brake block overcome the thrust of brake spring to separate with brake disc, opens
Brake system makes door roller normally start；Time relay KT is after time delay after a while, and its normally-closed contact KT disconnects, electricity
Sealing in resistance R in road, the electric current of circuit reduces rapidly, but now brake system has been in open mode, brake electric magnetic coil YA
Only need less electric current just can be maintained open state, thus can reduce the power of brake electric magnetic coil YA, make brake electric magnet-wire
Circle YA temperature rise is little, saves energy；Simultaneously as the running voltage that brake electric magnetic coil YA maintains brake system to open is relatively low, line
The circle number of turn may be reduced by, and line footpath can be done greatly, is easier to produce, failure rate is low.
In the present embodiment, described brake electric magnetic coil YA is also associated with rectifier bridge stack UR, the input of this rectifier bridge stack UR
Connecting with resistance R, outfan connects the two ends of brake electric magnetic coil YA.Alternating current rectified bridge heap UR is defeated after being rectified into unidirectional current
Enter brake electric magnetic coil YA, brake electric magnetic coil YA work can be made more stable.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, 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. a modified model exchange door roller braking circuit, it is characterised in that: include brake electric magnetic coil, resistance and time relay
Device；Described brake electric magnetic coil and resistant series；The normally-closed contact of the described time relay and resistor coupled in parallel；Described time relay
The two ends of device coil connect the two ends of circuit input end.
A kind of modified model exchange door roller braking circuit the most according to claim 1, it is characterised in that: described brake electromagnetism
Coil is also associated with rectifier bridge stack, the input of this rectifier bridge stack and resistant series, and outfan connects the two of brake electric magnetic coil
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620903848.XU CN205876151U (en) | 2016-08-19 | 2016-08-19 | Improved generation ac door - rolling machine braking circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620903848.XU CN205876151U (en) | 2016-08-19 | 2016-08-19 | Improved generation ac door - rolling machine braking circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205876151U true CN205876151U (en) | 2017-01-11 |
Family
ID=57704724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620903848.XU Expired - Fee Related CN205876151U (en) | 2016-08-19 | 2016-08-19 | Improved generation ac door - rolling machine braking circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205876151U (en) |
-
2016
- 2016-08-19 CN CN201620903848.XU patent/CN205876151U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170111 Termination date: 20170819 |