CN208803940U - Bidirectional push rod driving device - Google Patents
Bidirectional push rod driving device Download PDFInfo
- Publication number
- CN208803940U CN208803940U CN201821395278.3U CN201821395278U CN208803940U CN 208803940 U CN208803940 U CN 208803940U CN 201821395278 U CN201821395278 U CN 201821395278U CN 208803940 U CN208803940 U CN 208803940U
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- CN
- China
- Prior art keywords
- relay
- control
- push rod
- power supply
- pwm2
- Prior art date
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model relates to the bidirectional push rod driving devices in a kind of blower, it is controlled by following driving circuits, including four relay K1, K2, K3, K4, wherein, relay K1 is connected with relay K4, relay K2 connect with relay K3 after with relay K1, relay K4 is in parallel, relay K1 and the midpoint relay K4 and the midpoint of relay K2 and relay K3 are as output point, the open-minded of relay is controlled by control PWM, shutdown, relay K1, the control signal of relay K3 is PWM1, relay K2, the control signal of relay K4 is PWM2, two signals, which mutually block i.e., to be simultaneously height.The utility model only needs a power supply to can be achieved with the output of two kinds of level, save the cost；Simple structure, high reliability；Power supply is always maintained at a kind of working condition, switches without long-term start and stop, the service life is longer for power supply.
Description
Technical field
The utility model relates to the bidirectional push rod driving devices in a kind of blower.
Background technique
It is all the wind energy energy size of capture to be adjusted to wind direction using push rod adjusting blade, and push away in general blower
The control of bar is generally controlled using PLC, alternatively, obtaining positive-negative power by internal dual power supply to driving push rod, these controls
The shortcomings that method processed, is:
1, input cost is high；
2, control circuit is complicated.
Pulse width modulation (PWM) is non-come the one kind controlled analog circuit using the numeral output of microprocessor
Normal effective technology is widely used in from measurement, communicates into many fields of power control and transformation.
Pulse width modulation is a kind of analog control mode, according to the variation of respective loads come modulation transistor base stage or
The biasing of metal-oxide-semiconductor grid, the change of Lai Shixian transistor or metal-oxide-semiconductor turn-on time, to realize switching power supply output
Change.This mode can be such that the output voltage of power supply keeps constant in operation conditions change, be the number using microprocessor
A kind of very effective technology that signal controls analog circuit.
PWM control technology is simple with its control, flexibly and the good advantage of dynamic response and it is most wide as power electronic technique
The control mode of general application and the hot spot of people's research.Since the development of current science and technology is without between subject
Boundary, in conjunction with modern control theory thought or realize resonance free wave switching technique will become PWM control technology develop master
Want one of direction.
Summary of the invention
The technical problem to be solved by the utility model is to provide the bidirectional push rod driving devices in a kind of blower, pass through
The mode of single supply output dual power supply carrys out driving push rod state.
The technical issues of the utility model, passes through following proposal and solves: the bidirectional push rod driving device in a kind of blower, by
Following driving circuit controls, including four relays K1, K2, K3, K4, wherein relay K1 is connected with relay K4, relay
Device K2 is in parallel with relay K1, relay K4 after connecting with relay K3, relay K1 and the midpoint relay K4 and relay K2
With the midpoint of relay K3 as output point, opening, turning off for relay is controlled by control PWM, and make relay K1, after
The control signal of electric appliance K3 be PWM1, relay K2, relay K4 control signal be PWM2, two signals mutually block be not
It can be simultaneously height, as PWM1=1, PWM2=0, relay K1, relay K3 closure export Vout=Vin, and motor rotates forward control, this
Shi Weizheng push rod state；As PWM1=0, PWM2=1, relay K1, relay K3 are disconnected, relay K2, relay K4 closure, defeated
Vout=- Vin out, motor reversal control are at this time reversed pull rod state.
On the basis of above scheme, the utility model can be connect with upper PC machine, by writing corresponding control in PC machine
Corresponding dead zone, which is arranged, in processing procedure sequence prevents power supply straight-through.
The advantages of the utility model, is as follows:
1, a power supply is only needed to can be achieved with the output of two kinds of level, save the cost；
2, a power supply, simple structure, high reliability are only needed；
3, it only needs PC control PWM to send out wave, be not necessarily to while controlling two motors, it is easier to control；
4, structure is simple, convenient for safeguarding, and when later maintenance greatly reduces maintenance manpower and time；
5, power supply is always maintained at a kind of working condition, switches without long-term start and stop, the service life is longer for power supply.
Detailed description of the invention
Fig. 1 is the utility model circuit diagram；
Fig. 2 is PWM waveform.
Specific embodiment
As shown in Figure 1, the bidirectional push rod driving device in a kind of blower, is controlled by following driving circuits, including four after
Electric appliance K1, K2, K3, K4, wherein relay K1 is connected with relay K4, relay K2 connect with relay K3 after with relay
Device K1, relay K4 are in parallel, relay K1 and the midpoint relay K4 and the midpoint of relay K2 and relay K3 as output point,
Control the opening of relay by control PWM, turn off, relay K1, relay K3 control signal be PWM1, relay
K2, relay K4 control signal be PWM2, as shown in Fig. 2, two signals mutually block cannot be simultaneously it is high, when PWM1=
When 1, PWM2=0, relay K1, relay K3 closure export Vout=Vin, and motor rotates forward control, and be positive push rod state at this time；When
PWM1=0, PWM2=1, relay K1, relay K3 are disconnected, and relay K2, relay K4 closure export Vout=- Vin, motor
Reversion control, is at this time reversed pull rod state.
The present embodiment can be connect with upper PC machine, sent out wave by PC control control PWM, be not necessarily to while controlling two electricity
Machine is arranged corresponding dead time by PC machine control, prevents power supply straight-through.
Claims (2)
1. a kind of bidirectional push rod driving device is controlled in blower by following driving circuits, including four relay K1, K2,
K3, K4, which is characterized in that relay K1 is connected with relay K4, relay K2 connect with relay K3 after with relay K1,
Relay K4 is in parallel, and relay K1 and the midpoint relay K4 and the midpoint of relay K2 and relay K3 pass through as output point
Control PWM controls the opening of relay, turns off, relay K1, relay K3 control signal be PWM1, relay K2, after
The control signal of electric appliance K4 is PWM2, and two signals, which mutually block i.e., to be simultaneously height, as PWM1=1, PWM2=0, relay
Device K1, relay K3 closure export Vout=Vin, and motor rotates forward control, and be positive push rod state at this time；As PWM1=0, PWM2=1, after
Electric appliance K1, relay K3 are disconnected, and relay K2, relay K4 closure export Vout=- Vin, motor reversal control is reversed at this time
Pull rod state.
2. bidirectional push rod driving device according to claim 1, it is characterised in that: connect with upper PC machine, pass through PC machine
Corresponding dead zone is arranged in control, prevents power supply straight-through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821395278.3U CN208803940U (en) | 2018-08-28 | 2018-08-28 | Bidirectional push rod driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821395278.3U CN208803940U (en) | 2018-08-28 | 2018-08-28 | Bidirectional push rod driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208803940U true CN208803940U (en) | 2019-04-30 |
Family
ID=66236541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821395278.3U Active CN208803940U (en) | 2018-08-28 | 2018-08-28 | Bidirectional push rod driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208803940U (en) |
-
2018
- 2018-08-28 CN CN201821395278.3U patent/CN208803940U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315700, No. 57, golden access road, Binhai Industrial Park, Xiangshan County, Ningbo, Zhejiang Patentee after: Jinlang Technology Co., Ltd Address before: 315700, No. 57, golden access road, Binhai Industrial Park, Xiangshan County, Ningbo, Zhejiang Patentee before: NINGBO GINLONG NEW ENERGY TECHNOLOGY Co.,Ltd. |