CN202254115U - -48V direct-current variable-frequency speed-reduction temperature control system - Google Patents
-48V direct-current variable-frequency speed-reduction temperature control system Download PDFInfo
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- CN202254115U CN202254115U CN201120255776XU CN201120255776U CN202254115U CN 202254115 U CN202254115 U CN 202254115U CN 201120255776X U CN201120255776X U CN 201120255776XU CN 201120255776 U CN201120255776 U CN 201120255776U CN 202254115 U CN202254115 U CN 202254115U
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Abstract
The utility model relates to a direct-current variable-frequency speed-reduction temperature control system, which comprises a power supply system, a pulse-width modulation (PWM) fan, a variable speed fan and an analog output (AO) driving compressor and is characterized in that the power supply system provides -48V direct current, and the rotation speed of the PWM fan is adjustable, so the adjustable wind speed is realized; and the compressor is a variable speed compressor, and a soft starting mode is adopted. The direct-current variable-frequency speed-reduction temperature control system realizes the effect of providing according to requirements, and the temperature requirement of a target unit can be met through less energy consumption. The energy saving maximization is realized.
Description
Technical field
The utility model relates to a kind of refrigeration system, further relates to a kind of temperature control system of rack.
Background technology
Current; China Mobile, China Telecom, CHINAUNICOM's three big operator power consumptions are excessive; Energy-saving and emission-reduction have been very urgent, are in to reduce machine room base station air conditioner running time to greatest extent, need be positioned over standby battery in the environment of a relative constant temperature.Present battery temperature control system all adopts ac power supply system.The shortcoming of this scheme is one to have a power failure and can't export low-temperature receiver, the 2nd, and low-temperature receiver output is cut off will be through outage realizes to compressor, influences compressor service life.
In the today of being becoming tight China's energy day, the phenomenon of operating a switch of having a power failure happens occasionally.From far-off regions relatively especially, it is frequent to have a power failure.Adopt to exchange and decide power mode, can't export low-temperature receiver during power failure, cause the temperature-controlling cabinet internal temperature to raise, can cause battery to be swollen to inefficacy when serious, at this moment this base station can't provide service.Another significant drawbacks is to adopt to decide power output cold, and maximizes power output all the time can not need be provided by abundant actual cold.Unfavorable energy-conservation.When temperature meets or does not meet when setting, frequently switch compressor operating or stop, influencing compressor service life.
Rack temperature control at present adopts AC compressor to realize refrigeration control more, and this mode has following shortcoming: 1, system can't work when having a power failure.2, refrigerating capacity output at present is fixed mode.3, adopt the mode that compressor is cut off the power supply to cut off low-temperature receiver, influence life of product.4, air quantity output also is constant, can't be according to target temperature and environment temperature modulation output.
The utility model content
In view of above content, be necessary to provide a kind of and can regulate refrigerating capacity, air quantity, life of product is high, temperature control system.
The utility model provides a kind of DC frequency-changing speed governing temperature control system, comprises electric power system, PWM blower fan, speed-changing draught fan, AO simulation output Driven Compressor, it is characterized in that:
The direct current that said electric power system provides for-48V;
Said PWM rotation speed of fan is adjustable, thereby realizes that wind speed is adjustable;
Said compressor is a variable speed compressor, and adopts soft-start mode.
Compared with prior art, the utlity model has following advantage:
1, this controls cold and hot amount output intent and is to provide as required, can satisfy the temperature requirements of object element with less energy resource consumption.Realize energy-conservation maximization.
2, variable cold is exported in employing direct current-48V frequency conversion, cold is modulated as required.
3, adopt the output of DC PWM modulation air quantity.
4, row's hydrogen production device mixes forced ventilation, adopts PWM modulation air quantity
5, system-levelly carry out trickle modulation according to target temperature, compressor adopts soft-start mode, and protection also prolongs compressor service life.
Description of drawings
Fig. 1 is the circuit theory diagrams of control system with outside or Surveillance center's communication unit.
Fig. 2 is that Fig. 2 is the circuit theory diagrams of master cpu and LCD display unit.
Fig. 3 Fig. 3 is the circuit theory diagrams of online upgrading software and human-computer dialogue input.
Fig. 4 is the circuit theory diagrams that speed-changing draught fan and variable speed compressor drive output.
The DC frequency-changing speed governing temperature control system structure front and the side view of Fig. 5 the utility model.
The specific embodiment
Combine embodiment that the utility model is done further to describe with reference to the accompanying drawings.
Fig. 1 is control system and outside or Surveillance center's communication unit, and J1 is RS485 communication output.Whole band buffer circuit and object element power system are isolated fully, can play high anti-interference and high stability.
Fig. 2 is master cpu and LCD display unit, is complete machine control core and instruction output center.Liquid crystal LCD shows real time data, comprises the object element humiture, and compressor rotary speed and rotation speed of fan show.Can intuitively see the corresponding relation of temperature and rotating speed.And the running time and the power consumption statistics that can show native system in real time.
Fig. 3 is online upgrading software and human-computer dialogue input.Dispose 4 buttons, realize data input and data queries such as turning over, turn over, increase, reduce down respectively.Wherein, the TST terminal is the program upgrade terminal, and the RS232 mouth through the TTL comment writes file destination among the CPU (CPU), is convenient to on-the-spot online software upgrade.
Fig. 4 is that speed-changing draught fan and variable speed compressor drive output.
FAN1 is a circulating fan in the object element, speed variable output.Slewing range is 0-380m
3/ H realizes level and smooth infinitely variable speeds output.
FAN2 is an object element outer circulation blower fan, speed variable output.Slewing range is 0-580m
3/ H realizes level and smooth infinitely variable speeds output.
U7 is the output of compressor control analog quantity, line traffic control voltage range 0.6V-4.5V DC voltage.Set up and computing through Mathematical Modeling according to the object element temperature curve between three speed changer outputs drive, realize rational speed controlling, thereby set up the core logic of energy conserving system.
Fig. 5 is the structure front and the side view of the utility model.Evaporator-condenser all adopts discharging, improves radiating efficiency to greatest extent.
The utility model is primarily aimed at the improvement that flooring reserving hole mould is carried out; The above is merely the utility model preferred embodiment; Non-so promptly limit to the claim of the utility model; So the simple and easy variation and the equivalent transformation of doing with the utility model specification and graphic content such as all should be contained in the claim of the utility model.
Claims (1)
1. a DC frequency-changing speed governing temperature control system comprises electric power system, PWM blower fan, speed-changing draught fan, AO simulation output Driven Compressor, it is characterized in that:
The direct current that said electric power system provides for-48V;
Said PWM rotation speed of fan is adjustable, thereby realizes that wind speed is adjustable;
Said compressor is a variable speed compressor, and adopts soft-start mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120255776XU CN202254115U (en) | 2011-07-19 | 2011-07-19 | -48V direct-current variable-frequency speed-reduction temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120255776XU CN202254115U (en) | 2011-07-19 | 2011-07-19 | -48V direct-current variable-frequency speed-reduction temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202254115U true CN202254115U (en) | 2012-05-30 |
Family
ID=46115348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120255776XU Expired - Fee Related CN202254115U (en) | 2011-07-19 | 2011-07-19 | -48V direct-current variable-frequency speed-reduction temperature control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202254115U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278802A (en) * | 2011-07-19 | 2011-12-14 | 深圳市易网通通信技术有限公司 | Minus 48V direct current frequency-conversion speed-regulation temperature control system |
| CN102968148A (en) * | 2012-12-03 | 2013-03-13 | 深圳市易网通通信技术有限公司 | Closed microcirculation water medium single-phase heat exchange system |
| CN103822334A (en) * | 2013-12-14 | 2014-05-28 | 傅先凤 | Air conditioner frequency-conversion driving control system and air conditioner using same |
-
2011
- 2011-07-19 CN CN201120255776XU patent/CN202254115U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278802A (en) * | 2011-07-19 | 2011-12-14 | 深圳市易网通通信技术有限公司 | Minus 48V direct current frequency-conversion speed-regulation temperature control system |
| CN102968148A (en) * | 2012-12-03 | 2013-03-13 | 深圳市易网通通信技术有限公司 | Closed microcirculation water medium single-phase heat exchange system |
| CN103822334A (en) * | 2013-12-14 | 2014-05-28 | 傅先凤 | Air conditioner frequency-conversion driving control system and air conditioner using same |
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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: 20120530 Termination date: 20140719 |
|
| EXPY | Termination of patent right or utility model |