CN201536466U - Frequency converter cabinet fan group energy-saving control device - Google Patents
Frequency converter cabinet fan group energy-saving control device Download PDFInfo
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- CN201536466U CN201536466U CN2009202461365U CN200920246136U CN201536466U CN 201536466 U CN201536466 U CN 201536466U CN 2009202461365 U CN2009202461365 U CN 2009202461365U CN 200920246136 U CN200920246136 U CN 200920246136U CN 201536466 U CN201536466 U CN 201536466U
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- fan
- frequency converter
- converter cabinet
- fans
- temperature
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Abstract
The utility model relates to a frequency converter cabinet fan group energy-saving control device, in particular to an electric device. The frequency converter cabinet fan group energy-saving control device comprises a plurality of fan groups installed on a frequency converter cabinet, wherein each fan group at least consists of two fans and a fan electric controller connected with the fan groups, and the fan electric controller is connected with a temperature sensor installed in the frequency converter cabinet, wind-pressure switches connected on air exhaust channels of the fan groups, and a fan fault indicator lamp installed on a frequency converter cabinet panel. Since a spare fan is used, and the fans are surplus in number, and the service life of the fan is prolonged. The fans can be detected whether to work or not through using the wind-pressure switches, which effectively solves the overheating or faults of a frequency converter caused by faults of the fans. The operation of the fan groups is intellectualized owing to using a singlechip, and users can open or close the fans according to temperature in the frequency converter cabinet, thereby realizing energy conservation and environment protection.
Description
Technical field
The utility model relates to a kind of frequency converter cabinet fan group energy-saving control device, it is a kind of electric device, being a kind of device that uses the digital computer technology that traditional electrical equipment is controlled, is a kind ofly traditional electrical equipment is carried out intelligent control to realize energy-conservation device.
Background technology
Frequency control has become general mode of speed regulation, for the various electric systems of purpose of energy saving all use frequency control.Being applied to the heat radiation of frequency conversion rack at present, all is to realize heat sinking function by radiator fan.The working order of radiator fan will directly influence the radiating effect of frequency conversion rack, finally influence the operate as normal of variable-frequency governor.So good heat dissipation design and fan running are controlled, will improve the performance of whole frequency converter.
In actual the use, the service load of frequency converter is not fixed, but constantly change, because the heat that the variation frequency converter of load distributes under underloading and heavy duty is different, the heat dissipation capacity of the heat regulation self that traditional radiator fan can not shed according to frequency converter, whatsoever all rotate continual work under the situation with same speed.This continual work produces two problems: at first wasted the energy, secondly because continual work is affected the life-span of fan.Fan is continuous high speed machine running gear, and the continuous service life of most of product is about 2 years.High temperature, following life-span of dirty environment also can shorten significantly.Fan damages and often to cause the whole frequency converter can't operate as normal.All kinds of fault radiator fans of frequency converter have accounted for about half according to statistics, also have many faults relevant with the fan radiating effect.
Summary of the invention
For solving prior art problems, the utility model proposes a kind of frequency converter cabinet fan group energy-saving control device.Described device is set up the fan group, and the spare fans of some is set, and when actual motion, according to frequency converter cabinet internal temperature situation, the number of fan is opened in control.Both energy-conservation, can reduce the fan wearing and tearing again.Be provided with fault fan checkout gear in addition, the fault fan detected, employ the fault-free fan certainly and substitute by blast switch.
The purpose of this utility model is achieved in that a kind of frequency converter cabinet fan group energy-saving control device, comprise: be installed in a plurality of fan groups on the frequency converter cabinet, described each fan group comprises two fans at least, the fan electric controller that is connected with the fan group, described fan electric controller be installed in frequency converter cabinet in temperature sensor, be installed in the blast switch on each fan exhaust passage of fan group, the fan failure indicator light that is installed on the frequency converter cabinet panel is connected.
The beneficial effect that the utility model produces is: owing to used spare fans, number of fans that big rich amount, the service life that can prolong aeration radiation system are significantly arranged.Owing to used blast switch, can detect the fan of each energized and whether work, can effectively solve fan failure and the overheated and fault that occurs of the frequency converter that produces.Owing to used single-chip microcomputer, make the operation intellectuality of fan group, can open or close the number of fan according to the temperature in the frequency converter cabinet, realize energy-conserving and environment-protective.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model embodiment one described frequency converter cabinet fan group energy-saving control device schematic diagram;
Fig. 2 is the view that the air door of the utility model embodiment three described automatic shutters is opened;
Fig. 3 is the air door closing state schematic diagram of the utility model embodiment three described automatic shutters;
Fig. 4 is the utility model embodiment four described processes temperature signal circuit theory diagrams;
Fig. 5 is the utility model embodiment four described fan swicth control circuit schematic diagrams;
Fig. 6 is the theory diagram of the utility model embodiment nine described frequency converter cabinet fan group energy-saving control methods.
Embodiment
Embodiment one:
Present embodiment is a frequency converter cabinet fan group energy-saving control device, as shown in Figure 1.Present embodiment comprises: be installed in a plurality of fan groups on the frequency converter cabinet, described each fan group comprises two fans at least, the fan electric controller that is connected with the fan group, the fan electric controller be installed in frequency converter cabinet in temperature sensor, be installed in the blast switch on each fan exhaust passage of fan group, the fan failure indicator light that is installed on the frequency converter cabinet panel is connected.
The key of present embodiment is a plurality of fans are being set, be that each fan is equipped with a spare fans again, form the fan group, a fan breaks down, can replace with another fan, can not occur because of a fan failure but whole frequency converter cabinet breaks down.Simultaneously on the air exhaust passage of each fan wind pressure sensor is set, whether detection fan under the situation that this fan power supply is connected works.Set up the electric controller of each fan group work of control, make the work intellectuality of fan group, realize the fan that blows in when the frequency converter caloric value is big more, the frequency converter caloric value fan that hour blows in less, energy-conserving and environment-protective.Set up the fan failure alarm device, do not worked, can discern very easily in case which fan breaks down.
The fan assembly place frequency converter cabinet above or below main air duct on.One group of parallel installation of several same specification fans, each fan all has the air channel of oneself.In the middle of them any one or any several combination all can form radiating airflow.Heat and the decision of environment radiating condition that concrete operation number is produced by frequency converter cabinet.Be provided with the gravity self closing door in the air channel of each fan, its effect is to prevent that air-flow from pouring in down a chimney, and guarantees result of ventilating heat dissipation.
The fan group can add up to 4 fans, and 2 usefulness 2 are equipped with; Sum also can be 6 fans, and 3 usefulness 3 are equipped with or 1 usefulness 2 is equipped with etc., and the combination of alternate manner can also be arranged.Principle is the spare fans with one times of left and right sides quantity, prepares at any time to put into operation, and assurance equipment can normally move for a long time.
The fan electric controller is made up of single-chip microcomputer and control circuit, and function has: control the quantity of fan group apoplexy fan pass electric operation according to the temperature of the frequency conversion rack inner heat body of temperature sensor senses, reach purpose of energy saving; Detect the fan that breaks down by blast switch, it is closed automatically, and start spare fans, guarantee required radiating effect, assurance equipment normally moves.Remind the staff in time to change the fan that breaks down by alarm lamp simultaneously.
The gravity self closing door all is provided with the gravity self closing door in the independent ventiduct of each fan.Normal operating fan, because the effect of air-flow, open automatically in its air channel; Be in stand-by state or out of order fan, the air channel is closed automatically.Its objective is to prevent that air-flow from pouring in down a chimney, guarantee result of ventilating heat dissipation.
Temperature sensor is installed in the frequency converter cabinet main heater position, is connected with the single-chip microcomputer of fan electric controller, and be the signal of telecommunication with the temperature transition of heater, open fan and move quantity, the foundation of running time for the fan electric controller provides.
Blast switch all is provided with blast switch in the independent ventiduct of each fan, its single-chip microcomputer with the fan electric controller is connected.When fan normally moved, corresponding blast switch was connected, and when fan broke down, corresponding blast switch disconnected.The single-chip microcomputer of fan electric controller cuts off out of order fan power supply circuits by control circuit.
Malfunction indicator lamp, when a certain fan broke down, corresponding malfunction indicator lamp lighted, and reminded the staff in time to change, thereby guaranteed equipment safety operation.
Embodiment two:
Present embodiment is the improvement of embodiment one, is the refinement of embodiment one about the fan group.The number of fan all has a spare fans for each fan in the described fan group of present embodiment.
The fan group can add up to 4 fans, mainly uses 2 fans, and is that every main fan that uses is equipped with a spare fans, i.e. 2 spare fans.Or sum also can be 6 fans, mainly uses 3 fans, with 3 spare fans and its outfit.More fan can also be arranged and have the spare fans of equal number.Principle is the spare fans with one times of left and right sides quantity, prepares at any time to put into operation, and assurance equipment can normally move for a long time.
Embodiment three:
Present embodiment is the improvement of embodiment two, is the refinement of embodiment two about air door.The air door of automatic shutter is installed in the outlet of the air exhaust passage of each fan of the described fan group of present embodiment.
The air door of described automatic shutter can be a kind of air door that is installed on the vertical air duct, when do not have in the passage air by the time air door close, as shown in Figure 3.Air door is blown open when air is upwards flowed by the bottom of passage, as shown in Figure 2.It also can be a kind of air door that is installed on the horizontal air duct.When do not have in the horizontal channel air by the time air door close.Air door can be opened when the opposite side of opening from air door as air flowed into.
Embodiment four:
Present embodiment is to implement three improvement, is the refinement of embodiment four about the fan electric controller.The described fan electric controller of present embodiment comprises: process chip, processes temperature signal circuit and fan swicth control circuit.
The processes temperature signal circuit as shown in Figure 4, R1, R2, R3+W, R4 form one and detect electric bridge.R2 (PT100) is a temperature sensor.According to the condition of work of frequency converter cabinet, with 50 ℃ as normal temperature.Under this normal temperature, make the detection bridge balance by adjusting W.Since the frequency converter cabinet temperature inside 50 ℃ up and down can deviation very not big, electric bridge is all the time near poised state work, so the linearity of electric bridge, sensitivity all can be fully guaranteed.
U1, R5, R6, R7, R8 form a DC voltage amplifier.Multiplication factor is mainly determined by the ratio (ratio of R8 and R7) of R6 and R5.
R9, C1 form filter circuit.Be used for the various interference signals of filtering.
The temperature signal of electric bridge output amplifies by DC voltage amplifier, by delivering to the A/D conversion mouth of single-chip microcomputer after the various interference signals of filter circuit filtering.
U1 is an operational amplifier, can use LM358, LM324, LM 124 etc.
The fan swicth control circuit can have various ways.As shown in Figure 5, be a kind of simple relay switching circuit, can effectively realize the switch of fan.Also can use the silicon controlled switching circuit.There is multiple mode to realize the switch of fan.
Embodiment five:
Present embodiment is the improvement of embodiment four, is the refinement of embodiment four about process chip.The described process chip of present embodiment is a kind of in single-chip microcomputer or the Programmable Logic Controller.
The described process chip of present embodiment can be a single-chip microcomputer or than single-chip microcomputer complicated embedded system more.Single-chip microcomputer can use: the chip of types such as ATtiny24/44/84, ATatmega8/16/48/64/88/128/168.Present embodiment can also use Programmable Logic Controller PLC, uses Programmable Logic Controller can obtain stable more and reliable performance, but costs an arm and a leg.
Embodiment six:
Present embodiment is the improvement of embodiment five, and present embodiment is the refinement of embodiment six about temperature sensor.The described temperature sensor of present embodiment is a kind of in platinum resistance, thermistor or the semiconductor temperature sensor.
The temperature sensor of present embodiment can be the PT100 temperature sensor, is platinum resistance again, or is called thermal resistance.The temperature coefficient of PT100 temperature sensor is 0.0039 */℃, resistance value is 100 Ω in the time of 0 ℃, resistance change rate be 0.3851 Ω/℃.Certainly also can use semiconductor temperature sensor or thermistor.Because the particular design and the embodiment four described methods of adjustment of circuit, the linearity of electric bridge, sensitivity all can be fully guaranteed.Linearity, the polarity of the temperature signal of process amplification also can be revised by software in addition.
Embodiment seven:
Present embodiment is the improvement of embodiment six, is the refinement of embodiment six about blast switch.The described wind pressure sensor of present embodiment is a kind of in air flow switch or the infrared electro formula air flow switch.
The described wind pressure sensor of present embodiment is to detect that airless is arranged is the transducer of the on off operating mode of air-flow.What present embodiment adopted is HF67KB type air flow switch, and manufacturer has: go up Hai'an sharp instrument and meter for automation Co., Ltd, auspicious Spike instrument and meter development in science and technology center, Beijing, Shanghai Hua Mai Industrial Co., Ltd..HF67KB type air flow switch belongs to mechanical sensor, and is simple in structure, and Installation and Debugging are convenient.
Present embodiment can also adopt infrared electro formula air flow switch.
Embodiment eight:
Present embodiment is the improvement of embodiment seven, is the refinement of embodiment seven about indicator light.The described indicator light of present embodiment is a kind of in light-emitting diode, incandescent lamp, the neon bulb.
Embodiment nine:
Present embodiment is to use the described device of the foregoing description and realizes that to the method for fan group control, theory diagram as shown in Figure 6.The described method of present embodiment roughly process is:
After program brought into operation, the fan electric controller constantly detected the interior temperature of frequency converter cabinet and whether fan exists fault.If find that fan has fault, cut off the power supply of this fan immediately, and light corresponding fan failure indicator light, remind the staff to change.If temperature drift in the discovery frequency converter cabinet under the situation that fan is not all opened as yet, then increases fan operation quantity.If fan is all opened, then carry out high temperature alarm, and enter the temperature protection state.
The inner programming rate of frequency converter cabinet (intensification amplitude/heating-up time) is the foundation of opening number of fans.Adopt the mode of fuzzy and logic to handle according to variation of temperature in the frequency converter cabinet.Programming rate is fast more, and the unlatching number of fans is also many more.If temperature is on the low side in the frequency converter cabinet, under the situation that the fan operation is still arranged, can reduce fan operation quantity.If temperature is in normal range (NR) in the frequency converter cabinet, fan operation quantity is not done variation, and system continues to monitor.
The concrete mathematical principle of fuzzy analysis and logic analysis: for energy savings to greatest extent, program is carried out trace analysis to the speed and the trend of gradient of temperature especially, and then judges increase accurately and reasonably, reduces opportunity of fan operation quantity.Basic principle is, temperature increases very fast, then increases the operation number of fans in advance, in time suppresses rate of rise in temperature, can effectively avoid temperature overshoot to occur and causes overtemperature stoppage protection fault.In like manner, when temperature descends when very fast, then reduce operation number of fans, in time saves energy in advance.The judgement of the speed of gradient of temperature relies on the one group of empirical data that is kept in the program, and this is the basis of realizing fuzzy control.
The described concrete steps of present embodiment are as follows:
The step of program start: be used for starting, and carry out the process of self check with the startup of frequency converter.
Detect the step of in-cabinet temperature: be used for the process that the temperature in the frequency converter cabinet detected by temperature sensor.
Detect the step of fan failure: be used for detecting each fan group and whether occur fault and idle fan by blast switch.
Judge whether out of order step of fan: if having the fault fan then to close the power supply of this fault fan and light the alarm lamp of this fault fan and get back to the step that detects in-cabinet temperature, if find to have the fault fan then enter next step.
Judge the step that in-cabinet temperature is whether higher: be used for temperature in the detected frequency converter cabinet and normal temperature range are compared, if the temperature in the frequency converter cabinet is in normal temperature range then get back to the step that detects in-cabinet temperature, if the temperature subnormal temperature scope in the frequency converter cabinet then reduce fan operation quantity and get back to the step that detects in-cabinet temperature is if the temperature in the frequency converter cabinet is higher than normal temperature range then enters next step.
Judge whether whole step of operation of all fans: whether whether the switch that is used to detect all fans opened and detected the fan that fan swicth opened by air flow switch and work, and whether have the fault fan to quit work, report to the police, enter guard mode if all trouble-free fans are worked and get back to the step that detects in-cabinet temperature; All open if not all fault-free fans and then to enter next step.
Increase the step of fan operation quantity: be used for increasing number of fans and getting back to the step that detects in-cabinet temperature by the fuzzy algorithmic approach logical algorithm.
When the temperature in the frequency converter cabinet is higher than normal temperature range, the speed that program trace analysis temperature in the fan electric controller increases, and be kept in the program one group of empirical data relatively.When the temperature in the frequency converter cabinet rises when very fast, then increase the operation number of fans in advance, in time suppress rate of rise in temperature, can effectively avoid temperature overshoot to occur and cause overtemperature stoppage protection fault.When the temperature in the frequency converter cabinet rises when slow, then can suitably postpone the opportunity that increases the operation number of fans, purpose is saves energy and reduces the fan wearing and tearing.Under a lot of temperature rise slow situation, increase the operation number of fans owing to postponed, the temperature when afterwards transfers downward trend to and is, just cancels or has avoided increasing this process of operation number of fans.
It should be noted that at last, below only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to the preferred arrangement scheme, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model (such as the form of electric controller, the arrangement of fan, form of transducer or the like), and not break away from the spirit and scope of technical solutions of the utility model.
Claims (8)
1. frequency converter cabinet fan group energy-saving control device, comprise: be installed in a plurality of fan groups on the frequency converter cabinet, described each fan group comprises two fans at least, it is characterized in that, also comprise: the fan electric controller that is connected with the fan group, described fan electric controller be installed in frequency converter cabinet in temperature sensor, be installed in the blast switch on each fan exhaust passage of fan group, the fan failure indicator light that is installed on the frequency converter cabinet panel is connected.
2. device according to claim 1 is characterized in that, the number of fan all has a spare fans for each fan in the described fan group.
3. device according to claim 2 is characterized in that, the air door of automatic shutter is installed in the outlet of the air exhaust passage of each fan of described fan group.
4. device according to claim 3 is characterized in that, described fan electric controller comprises: process chip, processes temperature signal circuit and fan swicth control circuit.
5. device according to claim 4 is characterized in that, described process chip is a kind of in single-chip microcomputer or the Programmable Logic Controller.
6. device according to claim 5 is characterized in that, described temperature sensor is a kind of in platinum resistance, thermistor or the semiconductor temperature sensor.
7. device according to claim 6 is characterized in that, described wind pressure sensor is a kind of in air flow switch or the infrared electro formula air flow switch.
8. device according to claim 7 is characterized in that, described indicator light is a kind of in light-emitting diode, incandescent lamp, the neon bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202461365U CN201536466U (en) | 2009-10-12 | 2009-10-12 | Frequency converter cabinet fan group energy-saving control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202461365U CN201536466U (en) | 2009-10-12 | 2009-10-12 | Frequency converter cabinet fan group energy-saving control device |
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| CN201536466U true CN201536466U (en) | 2010-07-28 |
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| CN2009202461365U Expired - Fee Related CN201536466U (en) | 2009-10-12 | 2009-10-12 | Frequency converter cabinet fan group energy-saving control device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157469A (en) * | 2011-03-15 | 2011-08-17 | 上海宏力半导体制造有限公司 | Cooling system of silicon controlled rectifier |
| CN102548260A (en) * | 2010-12-10 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Modular data center |
| CN103728998A (en) * | 2013-12-30 | 2014-04-16 | 长沙奥托自动化技术有限公司 | Intelligent adjustment type heat dissipation method and system for high-voltage frequency converter |
| CN103853206A (en) * | 2012-11-29 | 2014-06-11 | 深圳市海洋王照明工程有限公司 | Power supply system and heat dissipation circuit thereof |
| CN112040714A (en) * | 2020-07-15 | 2020-12-04 | 陕西麟北煤业开发有限责任公司 | Power supply and monitoring point of cooling fan of frequency converter power unit cabinet |
| CN113055635A (en) * | 2021-02-05 | 2021-06-29 | 福建中会智通信息科技有限公司 | Method and system for carrying out terminal conference |
-
2009
- 2009-10-12 CN CN2009202461365U patent/CN201536466U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548260A (en) * | 2010-12-10 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Modular data center |
| CN102548260B (en) * | 2010-12-10 | 2017-01-18 | 鸿富锦精密工业（深圳）有限公司 | Modular data center |
| CN102157469A (en) * | 2011-03-15 | 2011-08-17 | 上海宏力半导体制造有限公司 | Cooling system of silicon controlled rectifier |
| CN102157469B (en) * | 2011-03-15 | 2015-10-28 | 上海华虹宏力半导体制造有限公司 | The cooling system of thyristor |
| CN103853206A (en) * | 2012-11-29 | 2014-06-11 | 深圳市海洋王照明工程有限公司 | Power supply system and heat dissipation circuit thereof |
| CN103728998A (en) * | 2013-12-30 | 2014-04-16 | 长沙奥托自动化技术有限公司 | Intelligent adjustment type heat dissipation method and system for high-voltage frequency converter |
| CN103728998B (en) * | 2013-12-30 | 2016-01-27 | 长沙奥托自动化技术有限公司 | For intelligent adjustment type heat dissipation and the system of high voltage converter |
| CN112040714A (en) * | 2020-07-15 | 2020-12-04 | 陕西麟北煤业开发有限责任公司 | Power supply and monitoring point of cooling fan of frequency converter power unit cabinet |
| CN113055635A (en) * | 2021-02-05 | 2021-06-29 | 福建中会智通信息科技有限公司 | Method and system for carrying out terminal conference |
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| Date | Code | Title | Description |
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| 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: 20100728 Termination date: 20171012 |