CN204859059U - Fan frequency conversion system - Google Patents
Fan frequency conversion system Download PDFInfo
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- CN204859059U CN204859059U CN201520526573.8U CN201520526573U CN204859059U CN 204859059 U CN204859059 U CN 204859059U CN 201520526573 U CN201520526573 U CN 201520526573U CN 204859059 U CN204859059 U CN 204859059U
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- cabinet
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- frequency conversion
- fan
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Abstract
The utility model provides a fan frequency conversion system, include: fan frequency transforming cabinet and the fan and the temperature sensor that are connected with fan frequency transforming cabinet, temperature sensor sets up indoor, and the fan frequency transforming cabinet include: the cabinet body and cabinet door, internal converter and the control circuit of being provided with of cabinet is provided with controller, button and pilot lamp on the cabinet door, and control circuit includes: controller, manual frequency conversion control return circuit and fanman start the return circuit frequently, and temperature sensor, manual frequency conversion control return circuit and fanman start the return circuit frequently and be connected with the controller, and frequency conversion control return circuit and fanman start the return circuit frequently and realize the electric isolation through frequency conversion contactor and power frequency contactor respectively. The utility model discloses simple structure has increased manual frequency conversion control and fanman and has started the return circuit frequently in control circuit, reduce the down time who causes because of equipment trouble, and air -conditioner fan has adopted the converter start -up, and the heavy current is to the impact of electric wire netting when having eliminated original start -up, and the power consumption environment has obtained the improvement.
Description
Technical field
The utility model relates to frequency conversion field, refers to a kind of fan frequency conversion system especially.
Background technology
Along with country and the understanding of enterprise to energy conservation theory are constantly deepened, the effect of frequency converter and use obtain great popularization, effectively energy resource consumption can be reduced by frequency converter, reduce cost to drop into, frequency converter all will be placed in cabinet when using, cabinet is a space comparatively closed, and the components and parts of frequency converter inside are all the large parts of heating, frequency converter uses for a long time, the many degree of the heat that components and parts produce accumulate and can not distribute timely and effectively, a lot of secondary disaster can be produced, the lighter causes components and parts to burn scrapping, frequency converter can not use, severe one possibility initiation fire, this just gives us routine use, production brings greatly inconvenience and hidden danger, in order to better use frequency converter, just need the improvement suitable to it.
Utility model content
The utility model proposes a kind of fan frequency conversion system, solve the problem of frequency conversion system running environment of the prior art and running quality difference.
The technical solution of the utility model is achieved in that
A kind of fan frequency conversion system, comprise: fan frequency conversion cabinet and the blower fan be connected with described fan frequency conversion cabinet and temperature sensor, described temperature sensor is disposed in the interior, described fan frequency conversion cabinet comprises: cabinet and cabinet door, frequency converter and control loop is provided with in described cabinet, described cabinet door is provided with temperature controller, button and indicator light, described control loop comprises: controller, manual variable frequency control loop and blower fan power frequency starting-up later time, described temperature sensor, manual variable frequency control loop is connected with described controller with blower fan power frequency starting-up later time, described variable frequency control loop and described blower fan power frequency starting-up later time realize electrical isolation respectively by frequency conversion contactor and power frequency contactor.
Preferably, comprise: described frequency converter is fixed in described cabinet by the first mounting panel, the middle part of described cabinet is connected with current transformer and controller by the second mounting panel, the U of described frequency converter, V, W tri-terminals are connected by the three phase mains that contactor is corresponding with motor, the R of described frequency converter, S, T tri-binding post connects three phase mains respectively by circuit breaker, the three phase terminals of described motor passes through thermal relay, contactor is connected with three phase mains, the V11 end of described three phase mains is connected with current transformer, the W11 end of described three phase mains is in series with circuit breaker, the connection control loop, one end of described circuit breaker.
Preferably, described manual variable frequency control loop comprises: potentiometer RS, and the two ends of described potentiometer RS connect described controller and control terminal respectively, and the intermediate terminal of described potentiometer RS connects change over switch SA2.
Preferably, described blower fan power frequency starting-up later time comprises: the change over switch SA1 connected successively, button SB1, button SB2, contactor KM5, contactor KM6 and thermal relay KH2,1 end of change over switch SA1 and one end of 3 end connecting breaker QF2, thermal relay KH2 connect DC power supply.
The temperature difference of the room temperature that the utility model energy basis collects and setting controls the frequency of frequency converter, to control the rotating speed of blower fan, regulates the air output of air-conditioning duct.Adopt the frequency control of temperature difference closed loop, improve the operating efficiency of blower fan, improve automatization level, decrease the impact of human factor, greatly optimize the running environment of system, running quality; By the frequency of PID regulable control frequency converter to reach expection design temperature, after increasing frequency converter, the power output of motor just can export according to the demand of reality completely, reaches energy-saving and emission-reduction, the object of protection of the environment.The utility model set temperature transducer, can effectively improve radiating efficiency and effect, and prevent the too high generation fault of temperature in cabinet, the life cycle of effective extension device, improves the operational environment of equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of fan frequency conversion system of the utility model;
Fig. 2 is the structural representation of fan frequency conversion cabinet in Fig. 1;
Fig. 3 is the circuit theory diagrams of fan frequency conversion cabinet in Fig. 1;
In figure:
1, frequency converter; 2, current transformer; 3, the first circuit breaker; 4, the second circuit breaker; 5, contactor; 6, thermal relay; 7, main terminal; 8, control transformer; 9, auxiliary relay; 10, timer; 11, DC power supply; 12, control terminal; 13, fan frequency conversion cabinet; 14, blower fan; 15, temperature sensor.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As depicted in figs. 1 and 2, a kind of fan frequency conversion system of the present utility model, comprise: fan frequency conversion cabinet 13 and the blower fan 14 be connected with described fan frequency conversion cabinet 13 and temperature sensor 15, described temperature sensor 15 is disposed in the interior, described fan frequency conversion cabinet 14 comprises: cabinet and cabinet door, frequency converter 1 and control loop is provided with in described cabinet, described cabinet door is provided with controller, button and indicator light, described control loop comprises: manual variable frequency control loop and blower fan power frequency starting-up later time, described temperature sensor 15, manual variable frequency control loop is connected with described controller with blower fan power frequency starting-up later time, described variable frequency control loop and described blower fan power frequency starting-up later time realize electrical isolation respectively by frequency conversion contactor and power frequency contactor.
The temperature difference of the room temperature that controller of the present utility model can collect according to temperature sensor 15 disposed in the interior and setting controls the frequency of frequency converter 1, thus controls the rotating speed of blower fan 14, regulates the air output of air-conditioning duct; The present embodiment adopts the frequency control of temperature difference closed loop, improves the operating efficiency of blower fan 14, improves automatization level, decrease the impact of artificial factor, greatly optimize the running environment of system, running quality.
A kind of fan frequency conversion cabinet that the utility model embodiment proposes, comprise: cabinet, frequency converter 1 is fixed in described cabinet by the first mounting panel, the middle part of cabinet is connected with current transformer 2 and control transformer 8 by the second mounting panel, the middle and lower part of cabinet is connected with the first circuit breaker 3 by the 3rd mounting panel, second circuit breaker 4, contactor 5, thermal relay 6, auxiliary relay 9, timer 10 and DC power supply 11, the bottom of cabinet is connected with main terminal 4 and control terminal 12 by the 4th mounting panel, main terminal 4 and control terminal 12 have 10 terminal interface respectively.
Fan frequency conversion system in the present embodiment is provided with timing function, equipment can be allowed to run in the time range of setting, such as, under working environment, the week can be set to, the morning, 8:00 ran between 5:00 to afternoon, all the other times are out of service, prevent the situation forgetting switch during personnel control, cause waste.
Fig. 3 shows the circuit theory diagrams of fan frequency conversion cabinet of the present utility model, as shown in Figure 2, the U of frequency converter B P, V, W tri-terminals pass through the contactor KM2 U14 corresponding with motor M 1, V14, W14 three-phase is connected, the R of described frequency converter B P, S, T tri-binding post accesses the three-phase A of power supply respectively by circuit breaker Q F1, B, C, wherein, the U14 that motor M 1 is corresponding, V14, W14 three phase terminals is by thermal relay KH1, contactor KM1 accesses the three-phase A of power supply, B, C, V11 and the W11 end of three phase mains is connected with a voltmeter, the V11 end of three phase mains is connected with current transformer TA, the W11 end of described three phase mains is in series with circuit breaker Q F2, the connection control loop, one end of circuit breaker Q F2.
Described control circuit comprises controller PID and temperature sensor, one end of circuit breaker Q F2 connects total power light HLR, run indicator HLG, change over switch SA1 and DC power supply ZD respectively, wherein, the other end of total power light HLR, run indicator HLG connects N end, connect N end after one end of change over switch SA1 connects button SB1, button SB2, contactor KM5, contactor KM6, thermal relay KH2 successively, after the other end of change over switch SA1 connects contactor KM7, contactor KM8 successively, connect N end, the 24V power end of DC power supply ZD connects temperature sensor, 11 ends of temperature sensor connection control device PID, 12 ends of controller PID connect the 0V end of DC power supply ZD, 1 end of controller PID and 2 end connection transformer T, transformer T connects A end and the N end of three phase mains, 5 ends of controller PID connect change over switch SA2, one end connection control terminal of change over switch SA2, 5 ends connection control terminal and the relay R S respectively of controller PID, the other end connection control terminal of relay R S, in the present embodiment, when after outer access three phase mains, there is provided power supply to controller PID by transformer T, after KM1 connects, power supply is provided to frequency converter B P.
Fan frequency conversion system described in the utility model, by increasing temperature sensor and controller, for air feed system, balanced with the actual demand amount and effective supply amount that reach air feed system by the frequency of controller PID regulable control frequency converter, for exhausting system, compared by the temperature value of the temperature signal and expection setting that gather engine room inside, the same frequency by PID regulable control frequency converter is to reach expection design temperature, after increasing frequency converter, the power output of motor just can export according to the demand of reality completely, reach energy-saving and emission-reduction, the object of protection of the environment.The utility model set temperature transducer, can effectively improve radiating efficiency and effect, and prevent the too high generation fault of temperature in cabinet, the life cycle of effective extension device, improves the operational environment of equipment.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a fan frequency conversion system, it is characterized in that, comprise: fan frequency conversion cabinet and the blower fan be connected with described fan frequency conversion cabinet and temperature sensor, described temperature sensor is disposed in the interior, described fan frequency conversion cabinet comprises: cabinet and cabinet door, frequency converter and control loop is provided with in described cabinet, described cabinet door is provided with temperature controller, button and indicator light, described control loop comprises: controller, manual variable frequency control loop and blower fan power frequency starting-up later time, described temperature sensor, manual variable frequency control loop is connected with described controller with blower fan power frequency starting-up later time, described variable frequency control loop and described blower fan power frequency starting-up later time realize electrical isolation respectively by frequency conversion contactor and power frequency contactor.
2. a kind of fan frequency conversion system as claimed in claim 1, it is characterized in that, comprise: described frequency converter is fixed in described cabinet by the first mounting panel, the middle part of described cabinet is connected with current transformer and controller by the second mounting panel, the U of described frequency converter, V, W tri-terminals are connected by the three phase mains that contactor is corresponding with motor, the R of described frequency converter, S, T tri-binding post connects three phase mains respectively by circuit breaker, the three phase terminals of described motor passes through thermal relay, contactor is connected with three phase mains, the V11 end of described three phase mains is connected with current transformer, the W11 end of described three phase mains is in series with circuit breaker, the connection control loop, one end of described circuit breaker.
3. a kind of fan frequency conversion system as claimed in claim 2, it is characterized in that, described manual variable frequency control loop comprises: potentiometer RS, and the two ends of described potentiometer RS connect described controller and control terminal respectively, and the intermediate terminal of described potentiometer RS connects change over switch SA2.
4. a kind of fan frequency conversion system as claimed in claim 3, it is characterized in that, described blower fan power frequency starting-up later time comprises: the change over switch SA1 connected successively, button SB1, button SB2, contactor KM5, contactor KM6 and thermal relay KH2,1 end of change over switch SA1 and one end of 3 end connecting breaker QF2, thermal relay KH2 connect DC power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520526573.8U CN204859059U (en) | 2015-07-18 | 2015-07-18 | Fan frequency conversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520526573.8U CN204859059U (en) | 2015-07-18 | 2015-07-18 | Fan frequency conversion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204859059U true CN204859059U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520526573.8U Expired - Fee Related CN204859059U (en) | 2015-07-18 | 2015-07-18 | Fan frequency conversion system |
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| CN (1) | CN204859059U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026850A (en) * | 2016-06-22 | 2016-10-12 | 海信（广东）空调有限公司 | Power supply circuit, control method thereof and air conditioner |
| CN106015073A (en) * | 2016-06-30 | 2016-10-12 | 冼毅 | Blower control method |
| CN107370442A (en) * | 2017-08-09 | 2017-11-21 | 胜利油田华滨实业有限公司石油机械滨州分公司 | A kind of industrial frequency cabinet of remote controlled threephase asynchronous |
| CN107939719A (en) * | 2017-12-27 | 2018-04-20 | 东莞市国通通风设备有限公司 | Intelligent blower electric cabinet |
| CN110739886A (en) * | 2018-07-19 | 2020-01-31 | 宜兴市创联自动化设备有限公司 | automatic medicine-adding intelligent control cabinet |
| CN110752811A (en) * | 2018-07-19 | 2020-02-04 | 宜兴市创联自动化设备有限公司 | Sodium hypochlorite intelligence preparation switch board |
| CN113417881A (en) * | 2021-06-17 | 2021-09-21 | 杭州裕达自动化科技有限公司 | Novel intelligent fan control instrument |
| CN116480613A (en) * | 2023-04-14 | 2023-07-25 | 广东南华西电气有限公司 | Variable frequency fan control system |
-
2015
- 2015-07-18 CN CN201520526573.8U patent/CN204859059U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026850A (en) * | 2016-06-22 | 2016-10-12 | 海信（广东）空调有限公司 | Power supply circuit, control method thereof and air conditioner |
| CN106015073A (en) * | 2016-06-30 | 2016-10-12 | 冼毅 | Blower control method |
| CN107370442A (en) * | 2017-08-09 | 2017-11-21 | 胜利油田华滨实业有限公司石油机械滨州分公司 | A kind of industrial frequency cabinet of remote controlled threephase asynchronous |
| CN107939719A (en) * | 2017-12-27 | 2018-04-20 | 东莞市国通通风设备有限公司 | Intelligent blower electric cabinet |
| CN110739886A (en) * | 2018-07-19 | 2020-01-31 | 宜兴市创联自动化设备有限公司 | automatic medicine-adding intelligent control cabinet |
| CN110752811A (en) * | 2018-07-19 | 2020-02-04 | 宜兴市创联自动化设备有限公司 | Sodium hypochlorite intelligence preparation switch board |
| CN113417881A (en) * | 2021-06-17 | 2021-09-21 | 杭州裕达自动化科技有限公司 | Novel intelligent fan control instrument |
| CN116480613A (en) * | 2023-04-14 | 2023-07-25 | 广东南华西电气有限公司 | Variable frequency fan control system |
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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 |
Granted publication date: 20151209 Termination date: 20170718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |