CN206061682U - Electric curl-up film device - Google Patents
Electric curl-up film device Download PDFInfo
- Publication number
- CN206061682U CN206061682U CN201621086398.6U CN201621086398U CN206061682U CN 206061682 U CN206061682 U CN 206061682U CN 201621086398 U CN201621086398 U CN 201621086398U CN 206061682 U CN206061682 U CN 206061682U
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- China
- Prior art keywords
- relay
- controller
- film device
- direct current
- current generator
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Control Of Direct Current Motors (AREA)
Abstract
The utility model discloses a kind of electric curl-up film device, including direct current generator and controller, the controller includes two rectification units, carries out rectification respectively, forms DC source；The outfan of controller is connected with the two poles of the earth of the direct current generator, is controlled direct current generator positive and negative rotation or is stopped operating；The switching circuit of the controller includes that first relay of relay and the second relay of two triple-pole double throws, first relay and second relay are connected on the movable contact and normally-closed contact of a switch in the coil circuit of another relay.This utility model electric curl-up film device causes dash current, causes the damage of control circuit by increasing controlling switch, the coil of control relay, it is to avoid the direct reversal connection of direct current generator；So as to improve the life-span of controller.
Description
Technical field
This utility model is related to a kind of greenhouse film draw off gear, especially a kind of electric curl-up film device.
Background technology
Warmhouse booth is widely used in agricultural production.Generally, warmhouse booth can this film coiling system, for adjusting
The internal temperature and illumination of warmhouse booth.Film coiling system is by thin film, wound membrane pipe, electric curl-up film device, guide pipe and climbing device structure
Into.Electric curl-up film device output shaft rotarily drives the rotation of wound membrane pipe, drives thin film lower edge to rise or fall, meanwhile, electric curl-up film device
Guide pipe on climbing device slides with thin film lower edge.
A kind of film coiling system is disclosed in Chinese patent 201320321886.0, the controller of electric curl-up film device in the system
Fault rate it is higher, have impact on the normal work of warmhouse booth.Accordingly, it would be desirable to develop a kind of relatively low electronic wound membrane of fault rate
Device.
Utility model content
The purpose of this utility model is to provide a kind of structure novel and unique, easy to use, and can reduce controller event
The electric curl-up film device of barrier rate；Concrete technical scheme is：
A kind of electric curl-up film device, including direct current generator and controller, the controller include two rectification units, enter respectively
Row rectification, forms DC source；The outfan of controller is connected with the two poles of the earth of the direct current generator, controls direct current generator positive and reverse return
Turn or stop operating；The switching circuit of the controller includes first relay of relay and the second relay of two triple-pole double throws
Device, first relay and second relay by one switch movable contact and normally-closed contact be connected on another after
In the coil circuit of electrical equipment.
Further, an input of two rectification units is connected with zero line, and another input connects not respectively
The live wire of homophase.
Further, the control circuit is additionally provided with the ground wire of ground wire connection end, the ground wire connection end and power supply, motor
Shell and control circuit cage connection.
Further, the rectification unit is full bridge rectifier.
Further, the full bridge rectifier is by full bridge rectifier bridge device, Half bridge rectifier bridge device or commutation diode group
Into.
Further, the controller also includes the first limit switch and the second limit switch；First limit switch and
Second limit switch is normally closed switch, is connected in the power input line of the first rectification unit and the second rectification unit respectively.
This utility model electric curl-up film device is by increasing controlling switch, the coil of control relay, it is to avoid direct current generator is straight
It is reversed to connect, cause dash current, cause the damage of control circuit；So as to improve the life-span of controller.
Description of the drawings
Fig. 1 is this utility model electric curl-up film device circuit theory schematic diagram.
In figure：1st, power connection；2nd, the first limit switch；3rd, the second limit switch；4th, the first rectification unit；5th, second
Rectification unit；6th, the first relay；7th, the second relay；8th, direct current generator.
Specific embodiment
This utility model is more fully illustrated below with embodiment.This utility model can be presented as it is various not
Same form, is not construed as the exemplary embodiment for being confined to describe here.
For ease of explanation, here can using " on ", the space relative terms such as D score " left side " " right side ", for saying
The element illustrated in bright figure or feature are relative to another element or the relation of feature.It should be understood that except in figure
Outside the orientation for illustrating, spatial terminology is intended to include device different azimuth in use or operation.For example, if in figure
Device is squeezed, be stated as positioned at the element of other elements or feature D score will be located into other elements or feature " on ".Cause
This, exemplary term D score can be comprising both upper and lower orientation.Device otherwise can be positioned（It is rotated by 90 ° or is located at
Other orientation）, correspondingly can explain used herein of the relative explanation in space.
Electric curl-up film device in the present embodiment, for driving greenhouse curtain jack；Including direct current generator 8 and control
Device, circuit theory diagrams are as shown in Figure 1.Controller includes 5 two rectification units of the first rectification unit 4 and the second rectification unit, right
The two-way alternating current power supply accessed from the power access end of power connection 1 carries out rectification respectively, forms two-way DC source.Wherein
One rectification unit 4 provides DC source for motor reversal；Second rectification unit 5 is rotated forward for motor and provides DC source；Certainly,
Can be by adjusting wiring in turn.By the switching circuit in controller so that the outfan of controller and direct current generator 8
The two poles of the earth connect.When direct current generator 8 is connected with forward dc power supply, motor is rotated forward；When direct current generator 8 is connected with negative sense DC source
When connecing, motor reversal；When direct current generator 8 is not connected to positive, reverse DC source, motor stalling.By switching circuit
Direct current generator positive and negative rotation can be controlled or stopped operating.Switched by two（Not shown in figure）Control power access end is just
Turn power supply and invert being switched on or switched off for power supply, respectively the first rectification unit 4 and the second rectification unit 5 provide electric energy.
After in order to avoid curtain folding and unfolding to the end, electric curl-up film device is rotated further, and tears curtain to shreds；At the two ends of curtain stroke point
First limit switch 2 and the second limit switch 3 are not installed；First limit switch 2 is connected on reversion power input and first
Between 4 input of rectification unit, i.e. in 4 power input line of the first rectification unit；Restraining position is reached, deenergization makes direct current
Motor can not continue reversion.Second limit switch 3 is connected between reversion 5 input of power input and the second rectification unit,
That is in 5 power input line of the second rectification unit；Restraining position is reached, deenergization prevents direct current generator 8 from continuing to rotate forward.
Relay first relay 6 and second relay of the switching circuit of the controller in embodiment by two triple-pole double throws
Device 7, the first relay 6 are connected on the movable contact and normally-closed contact of the 3rd switch in the coil circuit of the second relay 7.Second
Relay 7 is connected on the movable contact and normally-closed contact of the 3rd switch in the coil circuit of the first relay 6.Certainly, as long as choosing
A switch in three switches is selected, the 3rd switch is not limited to.
Rotate forward power input L1 and reversion power input L2 can connect same phase firewire.Due to two rectification units
One input is connected with zero line, poor in order to reduce the maximum potential between the output of rotating forward power supply and reversion power supply output, just
The input for turning power supply and reversion power supply can connect out of phase live wire respectively.Such as rotate forward power input L1 and connect A phases, invert
Power input L2 connects B phases or C phases.
In order to avoid electric leakage causes security incident, control circuit to be additionally provided with ground wire connection end, ground wire connection end and power supply
Ground wire；Motor housing and control circuit shell are connected with ground wire.When generation is leaked electricity, by the earth leakage protective device in distribution box
Cut off the electricity supply input.
In order to direct current generator operates steadily, the first rectification unit 4 and the second rectification unit 5 adopt full bridge rectifier.When
So, it would however also be possible to employ Half bridge rectifier, pulsation of current is limited by reactor.
Full bridge rectifier can adopt full bridge rectifier bridge device or Half bridge rectifier bridge combination of devices to constitute, and can also adopt
Constituted with commutation diode combination.
During specific works, when needing to close curtain, closed a floodgate by rotating forward power supply, control circuit control direct current generator 8 is rotated forward；
Curtain in place after, disconnect rotate forward power supply, power cut-off.When needing to open curtain, reversion power supply closes a floodgate, control circuit control direct current
Motor 8 is rotated forward；Curtain in place after, disconnect reversion power supply, power cut-off.During practical operation, operator often strictly do not press
Standard operation, occasional when rotating forward power supply does not disconnect, just first invert power supply and close a floodgate, and then disconnect rotating forward power supply again；This makes directly
Stream 8 polarity moment reversal connection of motor, not only impacts to direct current generator 8, also results in control circuit failure.By the present embodiment
The improvement of middle circuit, no matter switching from reversion is just turned to, or rotates forward switching from counter steer, even if rotating forward power supply and inverting power supply
"on" position is in, also only one of which rectification unit is powered, it is to avoid direct current generator 8 polarity moment reversal connection；Avoid control
The damage of circuit.
Above-mentioned example is only intended to explanation this utility model, in addition, also various different embodiments, and these
Embodiment be all those skilled in the art after comprehension this utility model thought it is also envisioned that therefore, a here no longer string
Lift.
Claims (6)
1. electric curl-up film device, including direct current generator and controller, the controller include two rectification units, carry out respectively whole
Stream, forms DC source；The outfan of controller is connected with the two poles of the earth of the direct current generator, control direct current generator positive and negative rotation or
Stop operating；Characterized in that, the switching circuit of the controller include two triple-pole double throws the first relay of relay and
The movable contact and normally-closed contact of one switch are connected on by the second relay, first relay and second relay
In the coil circuit of another relay.
2. electric curl-up film device as claimed in claim 1 a, it is characterised in that input of two rectification units and zero
Line connects, and another input connects out of phase live wire respectively.
3. electric curl-up film device as claimed in claim 1, it is characterised in that the control circuit is additionally provided with ground wire connection end,
The ground wire of the ground wire connection end and power supply, motor housing and control circuit cage connection.
4. electric curl-up film device as claimed in claim 1, it is characterised in that the rectification unit is full bridge rectifier.
5. electric curl-up film device as claimed in claim 4, it is characterised in that the full bridge rectifier is by full bridge rectifier bridge device
Part, Half bridge rectifier bridge device or commutation diode composition.
6. electric curl-up film device as claimed in claim 1, it is characterised in that the controller also includes the first limit switch and the
Two limit switches；First limit switch and the second limit switch are normally closed switch, are connected on the first rectification unit respectively
In the power input line of the second rectification unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621086398.6U CN206061682U (en) | 2016-09-28 | 2016-09-28 | Electric curl-up film device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621086398.6U CN206061682U (en) | 2016-09-28 | 2016-09-28 | Electric curl-up film device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206061682U true CN206061682U (en) | 2017-04-05 |
Family
ID=58439221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621086398.6U Active CN206061682U (en) | 2016-09-28 | 2016-09-28 | Electric curl-up film device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206061682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114567061A (en) * | 2022-03-02 | 2022-05-31 | 红河学院 | Greenhouse auxiliary control system based on photovoltaic power supply |
-
2016
- 2016-09-28 CN CN201621086398.6U patent/CN206061682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114567061A (en) * | 2022-03-02 | 2022-05-31 | 红河学院 | Greenhouse auxiliary control system based on photovoltaic power supply |
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