CN201671863U - Fan control system - Google Patents
Fan control system Download PDFInfo
- Publication number
- CN201671863U CN201671863U CN200920306383XU CN200920306383U CN201671863U CN 201671863 U CN201671863 U CN 201671863U CN 200920306383X U CN200920306383X U CN 200920306383XU CN 200920306383 U CN200920306383 U CN 200920306383U CN 201671863 U CN201671863 U CN 201671863U
- Authority
- CN
- China
- Prior art keywords
- drive circuit
- temperature
- control system
- fan
- detecting unit
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model relates to a fan control system. The system comprises a temperature detection unit, a forward rotating drive circuit and a reverse rotating drive circuit. The forward rotating drive circuit and the reverse rotating drive circuit are respectively in work states according to ambient temperature detected by the temperature detection unit, and the forward rotating drive circuit and the reverse rotating drive circuit work at different time.
Description
Technical field
The utility model relates to a kind of fan control system, relates in particular to a kind of fan control system of controlling the sense of rotation of cooling fan according to ambient temperature automatically.
Background technique
Present various device all needs to use fan and cools off, and the control system of common cooling fan generally to control the sense of rotation of fan be fixed-direction.For the fixing cooling fan of sense of rotation,, can be divided into air drafting type structure and blowing type structure according to the difference that the fan sense of rotation rotates and reverse.The cooling fan of air draught structure is in summer, and especially the weather hot area is easy to generate problems such as the interior temperature of unit is too high, component aging, unit job insecurity.The cooling fan of blowing structure as the winter of northern severe cold, can cause the interior temperature of unit on the low side when low temperature, and control circuit and control unit freeze, even make that unit can't proper functioning.Therefore, the control system of common fan can't satisfy the ambient temperature of high temperature and low temperature, thermal adaptability difference and poor reliability simultaneously.
Summary of the invention
Prior art fan control system thermal adaptability is poor in order to solve, the problem of poor reliability, is necessary to provide a kind of thermal adaptability height, fan control system that reliability is high.
A kind of fan control system, it comprises temperature detecting unit, just changes drive circuit and reversing drive circuit, just changeing drive circuit and reversing drive circuit can be in running order respectively according to ambient temperature that temperature detecting unit detected, and is just changeing drive circuit and reversing drive circuit is not in running order simultaneously.
A kind of fan control system, it comprises high temperature auxiliary reclay, low temperature auxiliary reclay, positive contactor, counter-rotating contactor, first thermal switch, second thermal switch, when first thermal switch or any conducting of second thermal switch, the conducting of high temperature auxiliary reclay makes positive contactor adhesive, the not adhesive of counter-rotating contactor, when first thermal switch and second thermal switch all during not conducting, the conducting of low temperature auxiliary reclay, the adhesive of feasible counter-rotating contactor, positive not adhesive of contactor.
Compared to prior art, the ambient temperature that the utility model fan control system obtains according to detection is controlled the fan electromotor sense of rotation, specifically be to utilize first and second thermal switches and positive contactor, counter-rotating contactor, high temperature auxiliary reclay, low temperature auxiliary reclay realizing corresponding varying environment temperature, fan electromotor sense of rotation difference, when temperature is higher, just changeing, counter-rotating when temperature is low, thereby can adapt to ambient temperature, guarantee the unit proper functioning, have thermal adaptability and higher reliability preferably.
Description of drawings
Fig. 1 is the principle block diagram of the utility model fan control system one better embodiment.
Fig. 2-the 3rd, the electrical block diagram of fan control system shown in Figure 1.
Fig. 4 is the part workflow schematic representation of fan control system shown in Figure 1.
Embodiment
Seeing also Fig. 1, is the principle block diagram of the utility model fan control system one better embodiment.Fan control system 1 comprises temperature detecting unit 10, just changes drive circuit 20, reversing drive circuit 30, bypass drive circuit 40, fan electromotor 50 and fan 60.Temperature detecting unit 10 comprises at least two temperature transducers (figure does not show), can the testing environment temperature.Temperature detecting unit 10 with just change drive circuit 20, reversing drive circuit 30 and bypass drive circuit 40 and be connected.Bypass drive circuit 40 is connected to just changes drive circuit 20.Just changeing drive circuit 20 and reversing drive circuit 30 is connected respectively to fan electromotor 50.Fan electromotor 50 is connected with fan 60, is used for drive fan 60 rotations.
See also Fig. 2-3, fan control system 1 utilizes outside alternating voltage AC power supply, and its ac voltage is no more than the human safety voltage.Because temperature detecting unit 10 is for ambient light is preferably disposed on intake grill, institute thinks and guarantees personal safety, can adopt the safety voltage power supply.Fan control system also comprises air-break switch QF, as the whole system operation control switch.Fan control system 1 comprises counter-rotating contactor KM4 and KM5, high temperature auxiliary reclay KA3 and KA4, low temperature auxiliary reclay KA5, time relay KT2, by-pass switch QF6 and first, second thermal switch T1 and T2, control fan electromotor 50 is just changeing during wherein positive contactor KM5 adhesive, and control fan electromotor 50 counter-rotatings during counter-rotating contactor KM4 adhesive.。
Please consulting Fig. 4 simultaneously, is the part workflow schematic representation of fan control system shown in Figure 1.Corresponding first predetermined value of the first thermal switch T1 of fan control system 1, corresponding second predetermined value of the second thermal switch T2, first predetermined value are less than second predetermined value, and it is respectively applied for control fan sense of rotation under the varying environment temperature.Wherein, first predetermined value can be 5 ℃, and second predetermined value can be 35 ℃.Certainly, according to different concrete needs, first predetermined value and second predetermined value can be done corresponding variation.
When being set at 5 ℃ and second predetermined value and being 35 ℃ with first predetermined value is example, and the concrete workflow of fan control system 1 is described below:
When ambient temperature was lower than 5 ℃, temperature detecting unit 10 detected one less than 5 ℃ temperature value, the first not conducting of thermal switch T1 corresponding to the temperature transducer of the first thermal switch T1.Low temperature auxiliary reclay KA5 gets electric adhesive, its normally opened contact conducting.So counter-rotating contactor KM4 gets electric adhesive, its normally opened contact conducting.Reversing drive circuit 30 is in running order, fan electromotor 50 counterrotatings, and fan 60 shows as the rotation air draught.
When ambient temperature is not less than 35 ℃, temperature detecting unit 10 detects one greater than 35 ℃ temperature value corresponding to the temperature transducer of the second thermal switch T2, the second thermal switch T2 conducting, high temperature auxiliary reclay KA3 gets electric adhesive, its normally opened contact conducting, thereby the closed conducting of positive contactor KM5, it is in running order just to change drive circuit 20, makes fan electromotor 50 be rotated in the forward.Show as fan 60 rotation blowings.
When high temperature auxiliary reclay KA4 conducting, time relay KT2 also connects, and the time relay KT2 on the high temperature auxiliary reclay KA3 branch road closes, and makes high temperature auxiliary reclay KA3 also connect.Time relay KT2 has delay function, and its delay time can be 10 minutes.When ambient temperature begins to be higher than first preset temperature, the time relay KT2 conducting behind delay time that has delay function on the high temperature auxiliary reclay KA3 branch road, make high temperature auxiliary reclay KA3 connect, the high temperature auxiliary reclay KA3 that is just changeing drive circuit 20 closes, connect positive contactor KM5, drive circuit 30 is just being changeed in connection makes the cooling fan blowing rotate.The high temperature auxiliary reclay KA3 that is just changeing drive circuit 20 has delay function, and high temperature auxiliary reclay KA3 can set a delay time as required, as 5 seconds.When ambient temperature began to be higher than the second default temperature, the closure of the second thermal switch T2 guaranteed that high temperature auxiliary reclay KA3 closes, and guaranteed cooling fan blowing rotation.When ambient temperature begins to be lower than first preset temperature, the first thermal switch T1 and the second thermal switch T2 all are in open-circuit condition, make high temperature auxiliary reclay KA3, KA4 be in power failure state, low temperature auxiliary reclay KA5 connects, connect counter-rotating contactor KM4, the low temperature auxiliary reclay KA5 of reversing drive circuit 30 has delay function, and low temperature auxiliary reclay KA5 can set a delay time as required, as 5 seconds.Time relay KT2 is used for changing in the sense of rotation time-delay of ambient temperature fan electromotor when surpassing first predetermined value.The time-delay promise of high temperature auxiliary reclay KA3 and low temperature auxiliary reclay KA5 motor before sense of rotation changes, had a power failure in short-term, make fan electromotor counterrotating again after stopping operating, avoided fan electromotor to turn to changing and machinery and electrical impact that fan electromotor is produced.
By above-mentioned working procedure as can be seen, just changeing drive circuit 20 and reversing drive circuit 30 can distinguish in running order according to temperature detecting unit 10 ambient temperature that obtains that detects, be fan motor 50 forwards or counterrotating, and because the circuit design of positive interlock and reverse interlocking, just changeing drive circuit 20 and reversing drive circuit 30 can be simultaneously not in running order.
In addition, in the time can determining ambient temperature all the time greater than above-mentioned first predetermined value, as ambient temperature during all the time greater than 5 ℃, the switch QF6 of the bypass drive circuit 40 that can close, thus make and just changeing drive circuit 20 work, and need not pass through temperature control unit 10.
In fact, the first thermal switch T1 is as the major control switch of fan electromotor 50 sense of rotation, and the second thermal switch T2 is as the assist control switch of fan electromotor 50 sense of rotation.When ambient temperature was not less than second predetermined value, the second thermal switch T2 conducting made the closed conducting of positive contactor KM5, thereby fan electromotor 50 is rotated in the forward.And when temperature was lower than second predetermined value, the sense of rotation of fan electromotor 50 was controlled by the first thermal switch T1.
The utility model can have other the change mode of execution, as, in fact, the bypass drive circuit and second thermal switch all can omit, thereby can so that the ON-OFF control circuit cost save more.In addition, in another change mode of execution, the also also nonessential element of the time relay.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. fan control system is characterized in that: comprise the temperature detecting unit that is used for the testing environment temperature, be connected with temperature detecting unit respectively and carry out work and not in running order simultaneously drive circuit and the reversing drive circuit of just changeing according to the ambient temperature that temperature detecting unit detected.
2. fan control system as claimed in claim 1 is characterized in that: this temperature detecting unit comprises at least one ambient temperature value conducting that detection obtains according to temperature transducer or the thermal switch of closing and is used for the temperature transducer of testing environment temperature.
3. fan control system as claimed in claim 1 is characterized in that: further comprise fan electromotor, described fan electromotor is connected with described reversing drive circuit with the described drive circuit that just changeing respectively.
4. fan control system is characterized in that: comprise the temperature detecting unit that is used for the testing environment temperature, be connected with temperature detecting unit respectively and carry out work and not in running order simultaneously drive circuit and reversing drive circuit, high temperature auxiliary reclay, low temperature auxiliary reclay, positive contactor, counter-rotating contactor, first thermal switch and second thermal switch of just changeing according to the ambient temperature that temperature detecting unit detected.
5. fan control system as claimed in claim 4 is characterized in that: further comprise fan electromotor, described fan electromotor is connected with described reversing drive circuit with the described drive circuit that just changeing respectively.
6. fan control system as claimed in claim 5 is characterized in that: further comprise near the immovable time relay of sense of rotation that is used for keeping fan electromotor first predetermined value when ambient temperature changes in delay time with predefined delay time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920306383XU CN201671863U (en) | 2009-07-17 | 2009-07-17 | Fan control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920306383XU CN201671863U (en) | 2009-07-17 | 2009-07-17 | Fan control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671863U true CN201671863U (en) | 2010-12-15 |
Family
ID=43329275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920306383XU Expired - Fee Related CN201671863U (en) | 2009-07-17 | 2009-07-17 | Fan control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671863U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102933062A (en) * | 2012-10-26 | 2013-02-13 | 华为技术有限公司 | Air cooling heat sink used for outdoor module |
| CN102937771A (en) * | 2012-11-06 | 2013-02-20 | 浙江宇视科技有限公司 | Device for heating and radiating camera |
| CN103054160A (en) * | 2011-10-18 | 2013-04-24 | 广东中烟工业有限责任公司梅州卷烟厂 | Method for reducing impurity-removing machine cooling system energy consumption |
| CN107044431A (en) * | 2016-02-05 | 2017-08-15 | 苏州宝时得电动工具有限公司 | Suction and blowing device |
| CN108495522A (en) * | 2018-04-09 | 2018-09-04 | 南京能瑞电力科技有限公司 | Off-board charger and its cooling system active adaptation and self-diagnosing method |
| CN112162576A (en) * | 2020-09-23 | 2021-01-01 | 三一重机有限公司 | Heat dissipation control method and system of pure electric engineering equipment and electronic equipment |
-
2009
- 2009-07-17 CN CN200920306383XU patent/CN201671863U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103054160A (en) * | 2011-10-18 | 2013-04-24 | 广东中烟工业有限责任公司梅州卷烟厂 | Method for reducing impurity-removing machine cooling system energy consumption |
| CN103054160B (en) * | 2011-10-18 | 2015-10-28 | 广东中烟工业有限责任公司梅州卷烟厂 | Reduce the method for de-burring machine cooling system energy consumption |
| CN102933062A (en) * | 2012-10-26 | 2013-02-13 | 华为技术有限公司 | Air cooling heat sink used for outdoor module |
| CN102937771A (en) * | 2012-11-06 | 2013-02-20 | 浙江宇视科技有限公司 | Device for heating and radiating camera |
| CN107044431A (en) * | 2016-02-05 | 2017-08-15 | 苏州宝时得电动工具有限公司 | Suction and blowing device |
| CN108495522A (en) * | 2018-04-09 | 2018-09-04 | 南京能瑞电力科技有限公司 | Off-board charger and its cooling system active adaptation and self-diagnosing method |
| CN112162576A (en) * | 2020-09-23 | 2021-01-01 | 三一重机有限公司 | Heat dissipation control method and system of pure electric engineering equipment and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201671863U (en) | Fan control system | |
| CN201523347U (en) | Intelligent type combination switch | |
| CN210225981U (en) | Digital fan control cabinet | |
| CN207921463U (en) | A kind of electrically operated valve failure detector | |
| CN108798351A (en) | Automotive window speed control circuit and method | |
| US9010723B2 (en) | Electric actuator | |
| CN205714876U (en) | A kind of electric safety fan | |
| US8283879B2 (en) | Braking controller of a three-phase permanent magnetic brushless DC motor for directly driving a screw pump | |
| CN105588252B (en) | Active pyroelectric infrared intelligent switch | |
| CN105320007A (en) | Integrated control method for controlling switching of cold storage door and integrated control system for controlling switching of cold storage door | |
| JP2008183961A5 (en) | ||
| CN102353230B (en) | Refrigeration equipment as well as door-opening alarm device and method used by same | |
| CN105337552A (en) | Refrigerator, motor module set and motor driving circuit | |
| CN101005257A (en) | Fan system and its real time stop device | |
| CN103281017B (en) | A kind of motor steering control appliance, method, system and engineering vehicle | |
| CN102978886B (en) | Interlock control device and clothes dryer with same | |
| CN201406937Y (en) | Rain automatic window-closing device | |
| CN218987907U (en) | Driving element energy-saving circuit of coal conveying device | |
| CN201406650Y (en) | Wing gate device | |
| CN105003347B (en) | A kind of engine control system | |
| CN201763118U (en) | Controller for electric casement door | |
| CN208445504U (en) | A kind of three-phase roller shutter motor for door positive and reverse rotation control circuit | |
| CN101658400B (en) | Electric damping system of toilet bowl lifting mechanism | |
| US8931757B2 (en) | Electric actuator | |
| CN206149011U (en) | Binary channels split -phase motor opens dynamic relay |
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: 20101215 Termination date: 20160717 |