CN203906357U - Fan control circuit - Google Patents
Fan control circuit Download PDFInfo
- Publication number
- CN203906357U CN203906357U CN201420346161.1U CN201420346161U CN203906357U CN 203906357 U CN203906357 U CN 203906357U CN 201420346161 U CN201420346161 U CN 201420346161U CN 203906357 U CN203906357 U CN 203906357U
- Authority
- CN
- China
- Prior art keywords
- contactor
- fan
- kte
- power supply
- cooling fan
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 241001347978 Major minor Species 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
A fan control circuit comprises a fan power supply DC1, a control power supply DC2, a contactor K, a circuit breaker QF and a temperature control relay KTE, wherein the fan power supply DC1 supplies power to a cooling fan FJ and is connected with the cooling fan FJ through the circuit breaker QF and the contactor K, the control power supply DC2 supplies power to a coil of the contactor K, and the temperature control relay KTE is connected with the contactor K; when the cooling temperature is lower than the operating value of the temperature control relay KTE, the temperature control relay KTE is in a disconnected state, the coil of the contactor K is not powered, main and auxiliary contacts of the contactor K are in disconnected state, and the cooling fan FJ doesn't work; and when the cooling temperature is higher than the operating value, the temperature control relay KTE is in a pick-up state, the coil of the contactor K is powered and is in a pick-up state, the main and auxiliary contacts of the contactor K are in closed states, and the cooling fan FJ works. According to the fan control circuit, the service life of the fan can be prolonged to the maximum extent, and energy saving and vibration and noise reduction effects are realized.
Description
Technical field
The utility model is mainly concerned with blower fan field, refers in particular to a kind of control circuit for blower fan.
Background technique
Blower fan is usually applied in the cooling unit of every field, but cooling blower has the problem of vibration and noise, and taking convertor equipment as example, in employing forced air cooling convertor equipment but, vibration and noise are just mainly produced by cooling unit.
The control program of tradition cooling blower is mainly: not prosecutor case and speed Control scheme.Prosecutor case is not: in the time of device power-up, blower fan obtains electric startup work, and when equipment downtime, blower fan quits work; Speed Control scheme is: regulate rotation speed of fan according to load.Both compare, and speed Control scheme is solving relative some advantage of not prosecutor case in the problems such as convertor equipment vibration and noise, even but it is operated in the generation that can not stop cooling blower self-noise, vibration under low-speed mode; In addition, adopt speed Control need extra increase blower fan variable speed drives circuit or select the blower fan with speed changing function, will cause its cost to increase, reliability reduces.Further, blower fan also will be affected in long-term work state its working life.
Model utility content
The technical problems to be solved in the utility model is just: the technical problem existing for prior art, the utility model provides a kind of draught fan control circuit that can extend to greatest extent service life of fan, fully effectively play the effects such as energy-saving vibration-reduction noise reduction.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of draught fan control circuit, comprise fan power DC1, control power supply DC2, contactor K, circuit breaker Q F and thermostat relay KTE, described fan power DC1 is used for as cooling fan FJ power supply, described fan power DC1 is connected with cooling fan FJ after circuit breaker Q F, contactor K, described control power supply DC2 is used for as the coil power supply of contactor K, and thermostat relay KTE is connected with contactor K; When exothermic temperature is during lower than the working value of thermostat relay KTE, thermostat relay KTE remains open state, the coil of described contactor K not electric, the major-minor contact of described contactor K all remains open state, described cooling fan FJ does not work; When exothermic temperature is during higher than the working value of thermostat relay KTE, described thermostat relay KTE is by adhesive, described thermostat relay KTE keeps attracting state always, now the coil of contactor K obtains electric adhesive, the major-minor contact of described contactor K is all kept closed, and described cooling fan FJ carries out work.
As further improvement of the utility model: also comprise a Test Switchboard SA, closed described Test Switchboard SA is used to cooling fan FJ power supply.
As further improvement of the utility model: also comprise a controller MCU, be used for carrying out circuit state detection.
Compared with prior art, the utility model has the advantage of: draught fan control circuit of the present utility model, it can carry out on off control to blower fan according to the variation of device temperature, when equipment is operated in lower than rated power state, radiator meets heat radiation while requiring from cooling, and blower fan will quit work; When radiator can not meet heat radiation while requiring from cooling, blower fan is startup work.Therefore, the utility model can extend service life of fan to greatest extent, fully effectively plays the effects such as energy-saving vibration-reduction noise reduction.
Brief description of the drawings
Fig. 1 is frame principles schematic diagram of the present utility model.
Fig. 2 is the circuit theory schematic diagram of the utility model in concrete application example.
Embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
As shown in Figure 1, draught fan control circuit of the present utility model, comprise fan power DC1, control power supply DC2, contactor K, circuit breaker Q F, Test Switchboard SA, thermostat relay KTE and controller MCU, fan power DC1 is used for as cooling fan FJ power supply, fan power DC1 is connected with cooling fan FJ after circuit breaker Q F, contactor K, and circuit breaker Q F is the failure protecting device of cooling fan FJ; Control power supply DC2 and be used for as the coil power supply of contactor K provides level signal power supply simultaneously, thermostat relay KTE is the autocontrol switch of cooling fan FJ, and controller MCU adopts Control System of Microcomputer, is used for carrying out circuit state detection.
The working principle of the utility model draught fan control circuit is:
When normal work, Test Switchboard SA is off state, and circuit breaker Q F is closed state.When exothermic temperature is during lower than the working value of thermostat relay KTE, thermostat relay KTE remains open state, now the coil of contactor K not electric, the major-minor contact of contactor K all remains open state, cooling fan FJ does not work, and controller MCU detects that cooling fan FJ is now in outage state; When exothermic temperature is during higher than the working value of thermostat relay KTE, thermostat relay KTE is by adhesive and have the judgement of temperature return difference, within the scope of return difference, thermostat relay KTE keeps attracting state always, now the coil of contactor K obtains electric adhesive, the major-minor contact of contactor K is all kept closed, cooling fan FJ carries out work, and controller MCU obtains the working state of cooling fan FJ.In the present invention, thermostat relay KTE can adopt ripe thermostat relay product, and working principle is wherein the function himself having.
When test pattern, Test Switchboard SA closure can be tested to cooling fan FJ and whether can normally work, judge with this whether the each link of system exists extremely.
In the time that overcurrent appears in circuit, circuit breaker Q F carries out overcurrent protection by tripping to circuit, and controller MCU will detect overcurrent can manual closing circuit breaker Q F after eliminating, and system can be recovered normal work.
Below be only preferred implementation of the present utility model, protection domain of the present utility model is also not only confined to above-described embodiment, and all technological schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, should be considered as protection domain of the present utility model.
Claims (3)
1. a draught fan control circuit, it is characterized in that, comprise fan power DC1, control power supply DC2, contactor K, circuit breaker Q F and thermostat relay KTE, described fan power DC1 is used for as cooling fan FJ power supply, described fan power DC1 is connected with cooling fan FJ after circuit breaker Q F, contactor K, described control power supply DC2 is used for as the coil power supply of contactor K, and thermostat relay KTE is connected with contactor K; When exothermic temperature is during lower than the working value of thermostat relay KTE, thermostat relay KTE remains open state, the coil of described contactor K not electric, the major-minor contact of described contactor K all remains open state, described cooling fan FJ does not work; When exothermic temperature is during higher than the working value of thermostat relay KTE, described thermostat relay KTE is by adhesive, and now the coil of contactor K obtains electric adhesive, and the major-minor contact of described contactor K is all kept closed, and described cooling fan FJ carries out work.
2. draught fan control circuit according to claim 1, is characterized in that, also comprises a Test Switchboard SA, and closed described Test Switchboard SA is used to cooling fan FJ power supply.
3. draught fan control circuit according to claim 1 and 2, is characterized in that, also comprises a controller MCU, is used for carrying out circuit state detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346161.1U CN203906357U (en) | 2014-06-26 | 2014-06-26 | Fan control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346161.1U CN203906357U (en) | 2014-06-26 | 2014-06-26 | Fan control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906357U true CN203906357U (en) | 2014-10-29 |
Family
ID=51780640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420346161.1U Expired - Fee Related CN203906357U (en) | 2014-06-26 | 2014-06-26 | Fan control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389806A (en) * | 2014-12-19 | 2015-03-04 | 浙江比洛德传动技术有限公司 | Intelligent fan control device suitable for vehicle cooling system |
| CN113931863A (en) * | 2020-06-29 | 2022-01-14 | 深圳市金色曙光科技有限公司 | Control circuit of exhaust fan system |
-
2014
- 2014-06-26 CN CN201420346161.1U patent/CN203906357U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389806A (en) * | 2014-12-19 | 2015-03-04 | 浙江比洛德传动技术有限公司 | Intelligent fan control device suitable for vehicle cooling system |
| CN104389806B (en) * | 2014-12-19 | 2016-05-11 | 浙江比洛德传动技术有限公司 | A kind of fan intelligent control device that is applicable to vehicle cooling system |
| CN113931863A (en) * | 2020-06-29 | 2022-01-14 | 深圳市金色曙光科技有限公司 | Control circuit of exhaust fan system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZHOU CSR TIMES ELECTRIC Co.,Ltd. |
|
| 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: 20141029 |