CN203730361U - Automatic control device for heat radiation fan of high-voltage frequency inverter - Google Patents
Automatic control device for heat radiation fan of high-voltage frequency inverter Download PDFInfo
- Publication number
- CN203730361U CN203730361U CN201320707234.0U CN201320707234U CN203730361U CN 203730361 U CN203730361 U CN 203730361U CN 201320707234 U CN201320707234 U CN 201320707234U CN 203730361 U CN203730361 U CN 203730361U
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- CN
- China
- Prior art keywords
- contactor
- fan
- heat radiation
- frequency inverter
- automatic control
- 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
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- Inverter Devices (AREA)
- Rectifiers (AREA)
Abstract
An automatic control device for a heat radiation fan of a high-voltage frequency inverter comprises a power supply circuit of a fan, and is characterized by further comprising a contactor, a normally open contact of the contactor is arranged on the power supply circuit of the fan, and an output node of a PLC (programmable logic controller) is serially connected into a coil loop of the contactor. According to the above technical scheme, the PLC acquires the temperature inside the frequency inverter and closes the output node K1 when the temperature is at the set temperature, and controls the heat radiation fan of the high-voltage frequency inverter to start so as to reduce electric energy consumption and noise of the fan. By adding the contactor on the circuit, automatic control of the heat radiation fan is realized, electric energy is saved and noise is reduced.
Description
Technical field
The utility model relates to a kind of automatic controller, specifically relates to a kind of being applied in high voltage converter cooling fan is carried out to the device of automatically controlling.
Background technique
At present, the cooling fan of high voltage converter, only adopts a circuit breaker to control conventionally, the circuit breaker that closes, and blower fan is started working, cut-off breaker, blower fan quits work.Do like this, circuit is simple, but can not realize the automatic control of blower fan, if frequency variator power on for a long time ready after, while work, in frequency variator, can not produce too much heat, the long-time running of cooling fan, not only can consume a large amount of electric energy, and noise ratio is larger.
Summary of the invention
The purpose of this utility model is to provide a kind of high voltage converter cooling fan automatic controller of energy-saving and noise-reducing.
For achieving the above object, the utility model is by the following technical solutions:
A kind of high voltage converter cooling fan automatic controller, it comprises the power supply circuits of blower fan, and it also comprises contactor, and the normally opened contact of contactor is arranged on the power supply circuits of blower fan; In the wire loop of described contactor, also seal in an output node of PLC controller.
The input end of described PLC controller is connected with temperature transducer, and this temperature transducer is arranged in high voltage converter cabinet.
The input end of described PLC controller is also connected with the time relay, and the contact of the time relay is arranged in high voltage converter.
Adopt the utility model of technique scheme, PLC gather frequency variator temperature in the cabinet and at setting temperature by output node K1 node closure, control high voltage converter radiator fan and start, reduce electric energy that blower fan consumes and the effect of noise to reach.In circuit, increase a contactor, realize the automatic control of cooling fan, so both saved electric energy, reduced again noise.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of high voltage converter cooling fan automatic controller, it comprises power supply circuits and the contactor KM1 of blower fan, the normally opened contact KM-1 of contactor is arranged on the power supply circuits of blower fan; In the wire loop of above-mentioned contactor, also seal in an output node K1 of PLC controller.
The input end of above-mentioned PLC controller is connected with temperature transducer, and this temperature transducer is arranged in high voltage converter cabinet.In addition, the input end of PLC controller is also connected with the time relay, and the contact of the time relay is arranged in high voltage converter.
Working principle of the present utility model is: in PLC controller detects high voltage converter cabinet, temperature exceedes limit value, output node K1 node closure, and contactor KM coil obtains electric, contactor KM adhesive, blower fan M starts working; Or, in the time that PLC controller detects that the frequency variator off-duty time exceedes the time of setting, disconnect output node K1, contactor KM1 coil blackout, contactor disconnects, and blower fan M quits work, and reduces electric energy and noise that blower fan consumes.The auxiliary contact of contactor KM1 turn back to the input end of PLC controller, and the system of being convenient to detects fan operation state, realizes the real-time monitoring to blower fan.
Claims (1)
1. a high voltage converter cooling fan automatic controller, it comprises and it is characterized in that the power supply circuits of blower fan: it also comprises contactor (KM1), the normally opened contact (KM-1) of contactor is arranged on the power supply circuits of blower fan; In the wire loop of described contactor, also seal in an output node (K1) of PLC controller; The input end of described PLC controller is connected with temperature transducer, and this temperature transducer is arranged in high voltage converter cabinet; The input end of described PLC controller is also connected with the time relay, and the contact of the time relay is arranged in high voltage converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320707234.0U CN203730361U (en) | 2013-11-11 | 2013-11-11 | Automatic control device for heat radiation fan of high-voltage frequency inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320707234.0U CN203730361U (en) | 2013-11-11 | 2013-11-11 | Automatic control device for heat radiation fan of high-voltage frequency inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730361U true CN203730361U (en) | 2014-07-23 |
Family
ID=51200439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320707234.0U Expired - Fee Related CN203730361U (en) | 2013-11-11 | 2013-11-11 | Automatic control device for heat radiation fan of high-voltage frequency inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730361U (en) |
-
2013
- 2013-11-11 CN CN201320707234.0U patent/CN203730361U/en not_active Expired - Fee Related
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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: 20140723 Termination date: 20141111 |
|
| EXPY | Termination of patent right or utility model |