CN205385402U - Converter with automatically regulated rate of heat removal function - Google Patents
Converter with automatically regulated rate of heat removal function Download PDFInfo
- Publication number
- CN205385402U CN205385402U CN201620139650.9U CN201620139650U CN205385402U CN 205385402 U CN205385402 U CN 205385402U CN 201620139650 U CN201620139650 U CN 201620139650U CN 205385402 U CN205385402 U CN 205385402U
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- circuit
- fan
- converter
- temperature difference
- radiator
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Abstract
The utility model relates to a converter with automatically regulated rate of heat removal function, including the converter body this internal heat dissipation mechanism, power supply circuit and control circuit of being equipped with of converter, heat dissipation mechanism includes radiator and radiator fan, control circuit includes that difference in temperature detection module, signal conditioning circuit, square wave generating circuit, triangular wave converting circuit, PWM produce circuit and fan drive circuit. The beneficial effects are that: than traditional constant speed radiating mode, this circuit can show the promotion radiating effect, can realize fan automatic speed adjustment, practice thrift the electric energy, accord with the theme in current epoch - - - the low carbon environmental protection, during the converter underloading, despin, the wearing and tearing of reducible fan, the life of extension fan, the noise of fan is little.
Description
Technical field
This utility model relates to converter technology field, especially relates to a kind of with the converter being automatically adjusted rate of heat dispation function.
Background technology
Converter is application converter technique and microelectric technique, controls the electric control appliance of ac motor by changing motor working power Frequency Patterns.Converter is one of modern electrical machine speed regulating control and energy-conservation indispensable important devices, industrial circle application widely.Converter caloric value in the course of the work is relatively larger, and without carrying out heat dissipation timely and effectively, converter will affect work efficiency because operating temperature is too high, even shuts down because temperature is too high or damages, it is impossible to normally using.
Radiator structure in existing converter adopts constant speed radiating mode, and radiating effect is poor, and by causing energy waste, noise is big.
Therefore, the utility model proposes a kind of with the converter being automatically adjusted rate of heat dispation function.
Utility model content
This utility model provides field, especially relates to a kind of with the converter being automatically adjusted rate of heat dispation function, and to solve the radiator structure employing constant speed radiating mode of converter in prior art, radiating effect is poor, by causing energy waste, and the problem that noise is big.
This utility model is solved the technical problem that and is realized by the following technical solutions:
A kind of with the converter being automatically adjusted rate of heat dispation function, including transducer body, in described transducer body, it is provided with cooling mechanism, power circuit and control circuit；Described cooling mechanism includes radiator and radiator fan；
Described control circuit includes temperature difference detection module, signal conditioning circuit, square wave circuit for generating, triangular wave change-over circuit, PWM generation circuit and fan drive circuit；Described temperature difference detection module is in order to detect the temperature difference of described radiator and ambient temperature；Described signal conditioning circuit is connected with temperature difference detection module, to realize the faint voltage signal processing and amplifying of described temperature difference detection module, for late-class circuit；Described square wave circuit for generating is connected with triangular wave change-over circuit；Described PWM produces circuit and is connected with signal conditioning circuit and triangular wave change-over circuit respectively, to produce the adjustable PWM waveform of width, described fan drive circuit produces circuit with PWM and is connected, the PWM ripple that there is driving fan capabilities to input PWM waveform to be converted into, and drive the radiator fan of described cooling mechanism.
As preferred technical scheme, described temperature difference detection module arranges between described radiator and the housing of transducer body, to detect the temperature difference of described radiator and ambient temperature.
As preferred technical scheme, described temperature difference detection module is made up of semiconductor refrigerating backing, and the hot junction of described semiconductor chilling plate is in close contact with described radiator, and the cold end of described semiconductor chilling plate is in close contact with the housing of transducer body.
This utility model has the beneficial effect that 1) fan automatic speed regulation can be realized, save electric energy, meet the theme low-carbon environment-friendly of current era；
2) than traditional constant speed radiating mode, this circuit can be obviously improved radiating effect；
3) during converter underloading, rotating speed reduces, and can reduce the abrasion of fan, extends the service life of fan；
4) noise of fan can be reduced.
Accompanying drawing explanation
In order to be illustrated more clearly that embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is this utility model: the structural representation of a kind of control circuit with the converter being automatically adjusted rate of heat dispation function.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, this utility model is expanded on further.
With reference to shown in Fig. 1, a kind of with the converter being automatically adjusted rate of heat dispation function, including transducer body, in transducer body, it is provided with cooling mechanism, power circuit and control circuit；Cooling mechanism includes radiator and radiator fan；
Control circuit includes temperature difference detection module 1, signal conditioning circuit 2, square wave circuit for generating 3, triangular wave change-over circuit 4, PWM generation circuit 5 and fan drive circuit 6.
Temperature difference detection module 1 is made up of semiconductor refrigerating backing, and the hot junction of semiconductor chilling plate is in close contact with radiator, and the cold end of semiconductor chilling plate is in close contact with the housing of transducer body.The difference of radiator and ambient temperature so can be detected.Semiconductor chilling plate utilizes Seebeck effect, and namely semiconductor chilling plate both sides exist temperature difference, and its lead-in wire can obtain voltage, and the temperature difference is more big, and obtained voltage is more big.
Signal conditioning circuit 2 is connected with temperature difference detection module 1, to realize the faint voltage signal processing and amplifying of temperature difference detection module 1, for late-class circuit；Square wave circuit for generating 3 is connected with triangular wave change-over circuit 4；Wherein, the square wave of the continuable generation characteristic frequency of square wave circuit for generating 3；The square wave that previous stage circuit produces is done integral and calculating by triangular wave change-over circuit 4, thus producing triangular wave.
PWM produces circuit 5 and is connected with signal conditioning circuit 2 and triangular wave change-over circuit 4 respectively, by two paths of signals is compared, to produce the adjustable PWM waveform of width；Fan drive circuit 6 produces circuit 5 with PWM and is connected, the PWM ripple having driving fan capabilities to input PWM waveform to be converted into, and drives the radiator fan of cooling mechanism.
In application process, when radiator temperature raises, the temperature difference that temperature difference detection module 1 detects increases, and the voltage after conditioning increases.The intersection point making this voltage and triangular wave moves up, and due to the effect of comparator, this voltage exports high level more than triangle wave voltage comparator；This voltage is less than triangle wave voltage comparator output low level.The PWM ripple dutycycle that comparator exports is increased, and the average voltage obtained through overdrive circuit fan increases, and radiating fan rotation speed rises, and converter heat radiation is accelerated.
When radiator temperature reduces, the temperature difference that temperature difference detection module 1 detects reduces, and the voltage after conditioning reduces.The intersection point making this voltage and triangular wave moves down, and due to the effect of comparator, this voltage exports high level more than triangle wave voltage comparator；This voltage is less than triangle wave voltage comparator output low level.The PWM ripple dutycycle that comparator exports is reduced, and the average voltage obtained through overdrive circuit fan reduces, and rotation speed of the fan declines, and converter heat radiation is slowed down.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (3)
1., with the converter being automatically adjusted rate of heat dispation function, including transducer body, in described transducer body, it is provided with cooling mechanism, power circuit and control circuit；Described cooling mechanism includes radiator and radiator fan；It is characterized in that,
Described control circuit includes temperature difference detection module, signal conditioning circuit, square wave circuit for generating, triangular wave change-over circuit, PWM generation circuit and fan drive circuit；Described temperature difference detection module is in order to detect the temperature difference of described radiator and ambient temperature；Described signal conditioning circuit is connected with temperature difference detection module, to realize the faint voltage signal processing and amplifying of described temperature difference detection module, for late-class circuit；Described square wave circuit for generating is connected with triangular wave change-over circuit；Described PWM produces circuit and is connected with signal conditioning circuit and triangular wave change-over circuit respectively, to produce the adjustable PWM waveform of width, described fan drive circuit produces circuit with PWM and is connected, the PWM ripple that there is driving fan capabilities to input PWM waveform to be converted into, and drive the radiator fan of described cooling mechanism.
2. according to claim 1 a kind of with the converter being automatically adjusted rate of heat dispation function, it is characterised in that described temperature difference detection module is arranged between described radiator and the housing of transducer body.
3. according to claim 2 a kind of with the converter being automatically adjusted rate of heat dispation function, it is characterized in that, described temperature difference detection module is made up of semiconductor refrigerating backing, the hot junction of described semiconductor chilling plate and the close contact of described radiator, the cold end of described semiconductor chilling plate is in close contact with the housing of transducer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620139650.9U CN205385402U (en) | 2016-02-24 | 2016-02-24 | Converter with automatically regulated rate of heat removal function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620139650.9U CN205385402U (en) | 2016-02-24 | 2016-02-24 | Converter with automatically regulated rate of heat removal function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205385402U true CN205385402U (en) | 2016-07-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620139650.9U Expired - Fee Related CN205385402U (en) | 2016-02-24 | 2016-02-24 | Converter with automatically regulated rate of heat removal function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205385402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781203A (en) * | 2016-08-28 | 2018-03-09 | 上海奇电电气科技股份有限公司 | With the frequency converter for automatically adjusting rate of heat dispation function |
-
2016
- 2016-02-24 CN CN201620139650.9U patent/CN205385402U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781203A (en) * | 2016-08-28 | 2018-03-09 | 上海奇电电气科技股份有限公司 | With the frequency converter for automatically adjusting rate of heat dispation function |
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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: 20160713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |