CN101614106A - The DC machine control device of lower roller shutter door at constant speed and method - Google Patents
The DC machine control device of lower roller shutter door at constant speed and method Download PDFInfo
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- CN101614106A CN101614106A CN200810071322A CN200810071322A CN101614106A CN 101614106 A CN101614106 A CN 101614106A CN 200810071322 A CN200810071322 A CN 200810071322A CN 200810071322 A CN200810071322 A CN 200810071322A CN 101614106 A CN101614106 A CN 101614106A
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Abstract
The present invention discloses a kind of DC machine control device of lower roller shutter door at constant speed, comprises rectification module, sampling comparison module, switch module and load blocks, and switch module is attempted by the direct current generator two ends with after load blocks is connected; The input of rectification module is attempted by the direct current generator two ends, and the voltage signal at direct current generator two ends is carried out rectification; The sampling comparison module links to each other with the output of rectification module, and the sampling comparison module also links to each other with switch module, and the voltage signal after its rectification of sampling after sampled value and setting value compared, sends control signal according to comparative result to switch module.It can at the uniform velocity descend rolling door with the voltage clamp at direct current generator two ends within the specific limits, prolongs its application life, gets rid of potential safety hazard.The present invention also discloses a kind of DC motor control method that uses the lower roller shutter door at constant speed of aforementioned means.
Description
Skill this area
The present invention relates to drive the direct current generator of rolling door up-downgoing, particularly a kind of DC machine control device and method that makes lower roller shutter door at constant speed.
Background technology
Rolling door is because its security performance height, little advantage takes up room, nowadays be applied in field more and more widely, present rolling door generally uses direct current generator to drive, its circuit connects as shown in Figure 1, direct current generator 1 (M) links to each other with power supply by controller 2, by the startup of controller 2 control direct current generators 1 whether, and load the supply voltage of different directions for it, the rotation of different directions is done in the rotating shaft that drags rolling door upper end by direct current generator 1 again, makes rolling door carry out the upstream or downstream action.
When rolling door was carried out up action, because the voltage change at direct current generator 1 two ends is little, the speed that therefore drags rotating shaft was comparatively stable, made the rolling door plateau that can remain a constant speed substantially when up; Yet, when rolling door is descending, rotating shaft is slowly put down rolling door, along with the door-plate descender of rolling door is many more, its center of gravity is moved down gradually by the rotating shaft center, the gravity that is subjected to slowly increases, therefore driving rotating shaft changes faster and faster, and simultaneously, its gravitional force also rotation by rotating shaft is converted into electric energy and offers direct current generator 1, this moment, direct current generator 1 just was equivalent to generator, the voltage at its two ends increases sharply (can be increased to by the 24V under the normal condition more than the 63V, relevant with factor such as door body mechanism size), drives the rotating shaft quick rotation and puts down rolling door, make that the downstream rate of rolling door is more and more faster owing to the increase of acceleration, up to putting down fully; Particularly in some megastore or garage, the weight of rolling door is often very big, descending speed is surprising especially, in the moment that rolling door stops, the lower end of rolling door impinges upon ground heavyly, not only damages rolling door body structure, motor and floor easily, direct current generator 1 is owing to generate heat and reduction of service life for a long time, and the downstream rate of rolling door is uncontrollable, very easily the person is constituted a threat to, and has potential safety hazard.
In order to overcome above-mentioned defective, the people is arranged now in the load 30 in parallel of the two ends of direct current generator 1, as shown in Figure 2, but the electric current in these load 30 shunt circuits, thereby reduce the voltage at direct current generator 1 two ends, the power output of direct current generator 1 is reduced, drive the rotating shaft slewing rate and reduce, and then reduce the downstream rate of rolling door; When rolling door is descending, with load 30 places in circuit, but because direct current generator 1 only just can change generator into after rolling door is put down a segment distance, the operating efficiency in the time of therefore can reducing its normal operation; Moreover, because it is very big to flow through the electric current of load 30 in this kind circuit, therefore can consume a large amount of electric energy, and it is also being worked when rolling door is normally moved, cause a large amount of waste of energy, and needed load 30 must there be enough big power actually to use, otherwise, load 30 will be owing to overload be damaged, further consume electric power; Powerful load 30 cost height, the manufacturing cost of increase direct current generator 1, the calorific value of load 30 simultaneously is big, makes local temperature too high, influences the application life of other components and parts.
Summary of the invention
Main purpose of the present invention is to provide a kind of DC machine control device and method of lower roller shutter door at constant speed, and it can at the uniform velocity descend rolling door with the voltage clamp at direct current generator two ends within the specific limits, prolongs its application life, gets rid of potential safety hazard.
Secondary objective of the present invention is to provide a kind of DC machine control device and method of lower roller shutter door at constant speed, and its circuit part little power consumption is energy-conservation.
A further object of the present invention is to provide a kind of DC machine control device and method of lower roller shutter door at constant speed, and it can prolong the application life of direct current generator.
In order to reach above-mentioned purpose, solution of the present invention is:
The DC machine control device of lower roller shutter door at constant speed comprises rectification module, sampling module, comparison module, switch module and load blocks, and switch module is attempted by the output of rectification module with after load blocks is connected; The input of rectification module is attempted by the direct current generator two ends, and the voltage signal at direct current generator two ends is carried out rectification; Sampling module links to each other with the output of rectification module, the voltage signal of sampling after the rectification, and this voltage signal is sent to continuous comparison module; The output of comparison module links to each other with switch module, after sampled value and setting value are compared, sends control signal according to comparative result to switch module.
Above-mentioned rectification module adopts bridge rectifier.
Above-mentioned load blocks is resistance, copper cash, electric furnace heating wire or bulb.
Above-mentioned comparison module adopts two limit comparison circuits.
Use the DC motor control method of the lower roller shutter door at constant speed of said apparatus to be, when rolling door is descending,, and be sent to comparison module by the sampling module voltage signal at the direct current generator two ends after this rectification module rectification of sampling; This comparison module compares sampled value and setting value, and is big if the sampled value ratio sets value, then gauge tap module closure; If sampled value is littler than setting value, then the gauge tap module disconnects, and finishes until lower roller shutter door at constant speed.
After adopting said structure, the present invention is provided with rectification module and sampling comparison module by increasing at the direct current generator two ends, utilize rectification module that the voltage signal at direct current generator two ends is carried out rectification earlier, again by the direct current generator both end voltage after the sampling comparison module sampling rectification, when having only the magnitude of voltage that obtains when sampling to be higher than setting value, just understand gauge tap module closure, load blocks is connected on the two ends of direct current generator, realize the effect of shunting step-down, reduce the magnitude of voltage at direct current generator two ends, make that rotating shaft still can uniform rotation, drive rolling door and at the uniform velocity advance, avoid rolling door and floor that violent bump takes place, prolong the application life on rolling door and floor; Potential safety hazard when also effectively getting rid of rolling door and descending fast.
In addition, the big load blocks of power consumption is only just understood place in circuit in the direct current generator both end voltage during greater than setting value, consumed power, and it is very short time of this situation to occur, so whole power consumption reduces greatly, saves electric energy; Simultaneously, can adopt lower-powered load, reduce cost of manufacture; Calorific value reduces, and is little to the influence of other components and parts.
Moreover, since load blocks when the direct current generator both end voltage is too high and itself and connect, effectively share its both end voltage, avoid direct current generator to work long hours under the high pressure-temperature state, prolong its application life.
Description of drawings
Fig. 1 is the connection block diagram of the drive circuit of existing a kind of rolling door;
Fig. 2 is the connection block diagram of the drive circuit of existing another kind of rolling door;
Fig. 3 is the structured flowchart that the present invention is connected with direct current generator;
Fig. 4 is the flow chart of the present invention and direct current generator work;
Fig. 5 is an embodiment schematic diagram of rectification module among the present invention.
The specific embodiment
Below in conjunction with specific embodiment the present invention is elaborated.
Shown in Figure 3 is a preferred embodiment of the present invention, comprises rectification module 3, sampling module 4, comparison module 7, switch module 5 and load blocks 6.
The output of rectification module 3 links to each other with the sampling end of sampling module 4, by the magnitude of voltage after the sampling module 4 sampling rectifications, and this magnitude of voltage is sent to continuous comparison module 7.
The output of sampling module 4 links to each other with the sampling end of comparison module 4, after comparison module 7 receives magnitude of voltage, compare with the setting value of storage in advance that (setting value herein is meant the magnitude of voltage of the direct current generator 1 that can guarantee that rolling door at the uniform velocity moves, can be provided with as the case may be), and send control instruction (herein for pulse signal) to switch module 5 according to comparative result.In the present embodiment, comparison module 4 adopts two limit comparison circuits, and this is a known technology, does not repeat them here.Herein setting value be set to 28V～32V (direct current generator of 12V then is set to 14V～16V), promptly when magnitude of voltage during by low the rising, when rising to above 32V, sampling module 4 gauge tap modules 5 closures; When magnitude of voltage is reduced by height, have only when being reduced to 28V and just can send cut-off signal when following, so circulation to switch module 5.
When needs are opened rolling door, as shown in Figure 4, connect the power supply of direct current generator 1 by controller 2, and select its rotation direction, the rotating shaft that drives the rolling door top is rotated, make rolling door up, rectification module 3 carries out rectification with the voltage signals at direct current generator 1 two ends in real time, and offers comparison module 7 by sampling module 4 and compare; This moment is because 28V (controller is enough to provide power to make its voltage be unlikely to reduce a lot) is provided the voltage at direct current generator 1 two ends, the magnitude of voltage that comparison module 7 obtains is always less than the setting value of storing in advance, make switch module 5 keep off-state, load blocks 6 can place in circuit.
When rolling door descends, along with rolling door door-plate descender increases, its gravity that is subjected to increases gradually, driving rotating shaft changes faster and faster, gravitional force is converted into the electric energy of direct current generator 1, direct current generator 1 changes generator into, the voltage at its two ends increases rapidly, and the magnitude of voltage that receives when comparison module 7 then sends closed control instruction to switch module 5 during greater than 32V immediately, switch module 5 closures, load blocks 6 is attempted by direct current generator 1 two ends, reduces the electric current in the circuit, share the voltage at direct current generator 1 two ends, its velocity of rotation that drives rotating shaft is slowed down, guarantee that the rolling door downstream rate is even; When comparison module 7 finds that the magnitude of voltage that receives has been reduced to less than 28V, send open command to switch module 5 again, load blocks 6 and direct current generator 1 are disconnected, dividing potential drop no longer ... so circulation, until stable contact floor, the bottom of rolling door, in the whole descending process of rolling door, the situation that can occur hurtling down not, got rid of potential safety hazard, slowly contact with the floor owing to its underpart again, therefore can not cause damage, prolong the application life on rolling door and floor rolling door and floor.
In addition, the present invention has only the two ends that just load blocks 6 can be attempted by direct current generator 1 when it is higher than setting value by gathering the magnitude of voltage at direct current generator 1 two ends in real time, be its shunting step-down, shorten the fever time of load blocks 6, reduced its power consumption, saved electric energy; On the other hand,, the voltage of direct current generator 1 is remained in certain scope, guaranteed that also direct current generator 1 can not prolong its application life because of long-time heating damages by load blocks 6 being carried out control at intermittence; Moreover, because the working method of load blocks 6 reality is a batch (-type), therefore can selects the little load of power for use, thereby effectively reduce the manufacturing cost of direct current generator 1; And then, use the little load of power after, its calorific value reduces, and the influence in application life of other components and parts is reduced.
Shown in Figure 4 is a kind of flow chart of control method that utilizes the DC machine control device of lower roller shutter door at constant speed, specifically comprises the steps:
(1) begin when descending when rolling door, direct current generator 1 is connected power supplys via controller 2, controls the descending of rolling door by control rotating shaft, the voltage signal at rectification module 3 direct current commutating machines 1 two ends, and the voltage signal after the rectification sent to sampling module 4;
(2) sampling module 4 is sampled the voltage signal after the rectification, and voltage signal is sent to comparison module 7 in real time;
(3) comparison module 7 compares sampled value and predefined setting value, setting value herein adopts two limit comparison methods, specifically, the setting voltage comparison range is 28V～32V, when sampled value when being lower than 28V and raising, have only when sampled value is higher than 32V, comparison module 7 is meeting gauge tap module 5 closures, and load blocks 6 is attempted by direct current generator 1 two ends, reduce the electric current in the circuit, share the voltage at direct current generator 1 two ends, this moment, the voltage at direct current generator 1 two ends descended; When sampled value when being higher than 32V and beginning to reduce, when having only the sampled value that receives when comparison module 7, send open command to switch module 5 less than 28V;
(4) repeating step (1) finishes until lower roller shutter door at constant speed.
In sum, key of the present invention is, increase by a sampling comparison module 4 at the two ends of direct current generator 1, by the magnitude of voltage at real-time sampling direct current generator 1 two ends, when the magnitude of voltage that obtains when sampling is higher than setting value, load blocks 6 is attempted by the two ends of direct current generator 1, share its both end voltage, guarantee that the rotating speed of its towing rotating shaft is constant, make rolling door be able to uniform ascending or descending, get rid of potential safety hazard, prolong the application life of rolling door.The above is the cited preferred embodiment of the present invention, only for ease of concrete structure of the present invention is described, can not limit the scope of the invention with this.Every technological thought that proposes according to the present invention, any change of being done on the technical scheme basis all falls within the protection domain of the present invention.
Claims (5)
1, the DC machine control device of lower roller shutter door at constant speed is characterized in that: comprise rectification module, sampling module, comparison module, switch module and load blocks, switch module is attempted by the output of rectification module with after load blocks is connected; The input of rectification module is attempted by the direct current generator two ends, and the voltage signal at direct current generator two ends is carried out rectification; Sampling module links to each other with the output of rectification module, the voltage signal of sampling after the rectification, and this voltage signal is sent to continuous comparison module; The output of comparison module links to each other with switch module, after sampled value and setting value are compared, sends control signal according to comparative result to switch module.
2, the DC machine control device of lower roller shutter door at constant speed as claimed in claim 1 is characterized in that: described rectification module adopts bridge rectifier.
3, the DC machine control device of lower roller shutter door at constant speed as claimed in claim 1 is characterized in that: described load blocks is resistance, copper cash, electric furnace heating wire or bulb.
4, the DC machine control device of lower roller shutter door at constant speed as claimed in claim 1 is characterized in that: described comparison module adopts two limit comparison circuits.
5, use the DC motor control method of the lower roller shutter door at constant speed of the described device of claim 1, it is characterized in that: when rolling door is descending, by the sampling module voltage signal at the direct current generator two ends after this rectification module rectification of sampling, and be sent to comparison module; This comparison module compares sampled value and setting value, and is big if the sampled value ratio sets value, then gauge tap module closure; If sampled value is littler than setting value, then the gauge tap module disconnects, and finishes until lower roller shutter door at constant speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810071322XA CN101614106B (en) | 2008-06-27 | 2008-06-27 | Device and method for controlling DC motor to lower roller shutter door at constant speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810071322XA CN101614106B (en) | 2008-06-27 | 2008-06-27 | Device and method for controlling DC motor to lower roller shutter door at constant speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101614106A true CN101614106A (en) | 2009-12-30 |
| CN101614106B CN101614106B (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810071322XA Expired - Fee Related CN101614106B (en) | 2008-06-27 | 2008-06-27 | Device and method for controlling DC motor to lower roller shutter door at constant speed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860307A (en) * | 2010-03-23 | 2010-10-13 | 杭州双华科技有限公司 | Discharge loop for controlling speed of brush direct current tubular motor and circuit for controlling speed thereof |
| CN106089013A (en) * | 2016-08-03 | 2016-11-09 | 崔晓哲 | Australia's formula rolling screen door fast acting control system and control method |
| CN107332482A (en) * | 2017-08-31 | 2017-11-07 | 广东好太太科技集团股份有限公司 | A kind of Dolby circuit applied on clothes airing machine and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067747U (en) * | 1990-05-17 | 1990-12-19 | 黄海心 | Electronic position controller for electric rolling shutter door |
| CN2195611Y (en) * | 1994-05-16 | 1995-04-26 | 董士聪 | Automatic controlling device for flameproof rolling door |
| JP3897909B2 (en) * | 1998-08-18 | 2007-03-28 | 株式会社ハアーモニー | Stop control device for electric shutter |
| FR2811703B1 (en) * | 2000-07-11 | 2002-09-20 | Bubendorff Volet Roulant | ROLLER SHUTTER CONTROL DEVICE |
| CN201232519Y (en) * | 2008-06-27 | 2009-05-06 | 刘王雍杰 | Dc generator control device for uniform speed moving downwards for roller shutter |
-
2008
- 2008-06-27 CN CN200810071322XA patent/CN101614106B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860307A (en) * | 2010-03-23 | 2010-10-13 | 杭州双华科技有限公司 | Discharge loop for controlling speed of brush direct current tubular motor and circuit for controlling speed thereof |
| WO2011116586A1 (en) * | 2010-03-23 | 2011-09-29 | 杭州双华科技有限公司 | Discharging circuit for controlling speed of brushed dc tubular motor and control circuit thereof |
| CN106089013A (en) * | 2016-08-03 | 2016-11-09 | 崔晓哲 | Australia's formula rolling screen door fast acting control system and control method |
| CN106089013B (en) * | 2016-08-03 | 2019-03-26 | 崔晓哲 | Australia's formula rolling screen door fast acting control system and control method |
| CN107332482A (en) * | 2017-08-31 | 2017-11-07 | 广东好太太科技集团股份有限公司 | A kind of Dolby circuit applied on clothes airing machine and method |
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| Publication number | Publication date |
|---|---|
| CN101614106B (en) | 2012-01-11 |
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Effective date of registration: 20130719 Address after: 363900 Changtai County, Zhangzhou City, Wuan Province Town Industrial Park Patentee after: Fujian Anlin Intelligent Technology Co., Ltd. Address before: 363000 Zhangzhou Qilin Electronics Co., Ltd. Wuan Town, Changtai County, Zhangzhou City, Fujian Province Patentee before: Liu Wangyongjie |
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Denomination of invention: Device and method for controlling DC motor to lower roller shutter door at constant speed Effective date of registration: 20140303 Granted publication date: 20120111 Pledgee: Bank of Communications Ltd Zhangzhou branch Pledgor: Fujian Anlin Intelligent Technology Co., Ltd. Registration number: 2014350000008 |
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