CN105674433A - Frequency converter air-conditioning system for high-temperature environment - Google Patents

Frequency converter air-conditioning system for high-temperature environment Download PDF

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Publication number
CN105674433A
CN105674433A CN201610124852.0A CN201610124852A CN105674433A CN 105674433 A CN105674433 A CN 105674433A CN 201610124852 A CN201610124852 A CN 201610124852A CN 105674433 A CN105674433 A CN 105674433A
Authority
CN
China
Prior art keywords
conditioning
frequency converter
expansion valve
electric expansion
outdoor
Prior art date
Application number
CN201610124852.0A
Other languages
Chinese (zh)
Inventor
苗清波
申伟杰
邱嵩
郭亮
李建科
李洪超
刘涛
Original Assignee
青岛海尔空调器有限总公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 青岛海尔空调器有限总公司 filed Critical 青岛海尔空调器有限总公司
Priority to CN201610124852.0A priority Critical patent/CN105674433A/en
Publication of CN105674433A publication Critical patent/CN105674433A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20Electric components for separate outdoor units
    • F24F1/24Cooling of electric components
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001Compression cycle type

Abstract

The invention provides a frequency converter air-conditioning system for a high-temperature environment. The frequency converter air-conditioning system comprises an outdoor electronic control box and a semiconductor refrigerating component which are arranged in an outdoor unit of the frequency converter air-conditioning system; the semiconductor refrigerating component is electrically connected with a power supply of the outdoor electronic control box; a cold end of the semiconductor refrigerating component is arranged in the outdoor electronic control box; and a hot end of the semiconductor refrigerating component is arranged outside the outdoor electronic control box. The semiconductor refrigerating component is arranged in the outdoor electronic control box of the frequency converter air-conditioning system, and can cool down the electronic control box in time, and even if in an outdoor high-temperature environment, the temperature in the electronic control box cannot exceed the normal working temperature of the electronic control box, so that the air-conditioning system can still be used normally in the high-temperature environment, and is good in applicability.

Description

A kind of frequency converter air-conditioning system for hot environment
Technical field
The invention belongs to frequency converter air-conditioning technical field, particularly relate to a kind of frequency converter air-conditioning system for hot environment.
Background technology
Along with world energy sources and electric power situation are more and more nervous, Middle East various countries promote the entry level efficiency of air-conditioning one after another, and the demand for frequency converter is more and more higher. But due to Middle East temperature height (can reach more than 60 DEG C), in such environment, outdoor automatically controlled plate heating is serious, and heat radiation is not in time, often beyond the working temperature that components and parts allow, cause the damage of components and parts itself, cause common convertible frequency air-conditioner cannot normally use in such hot environment.
So, existing frequency converter air-conditioning, owing to the automatically controlled plate in outdoor easily damages in hot environment, causes air-conditioning from cannot normally use in hot environment.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of frequency converter air-conditioning system for hot environment, to solve existing convertible frequency air-conditioner, owing to its outdoor automatically controlled plate easily damages in hot environment, cause the problem that himself cannot normally use in hot environment. In order to there is a basic understanding some aspects of the embodiment disclosed, shown below is simple summary. This summary part is not comment general, neither determine key/critical component or describe the protection domain of these embodiments. Its sole purpose presents some concepts by simple form, in this, as the preamble of following detailed description.
In some optional embodiments, this frequency converter air-conditioning system comprises: the outdoor electric-controlled box being arranged in the outdoor machine of frequency converter air-conditioning system and semi-conductor refrigeration part; Described semi-conductor refrigeration part is connected with the power electric of described outdoor electric-controlled box; The cold junction of described semi-conductor refrigeration part is arranged at the inside of described outdoor electric-controlled box, and its hot junction is arranged at the outside of described outdoor electric-controlled box.
Further, this frequency converter air-conditioning system also comprises: the cooling blower fan being arranged in outdoor electric-controlled box; The cold junction of the adjacent semi-conductor refrigeration part of described cooling blower fan is arranged.
Further, this frequency converter air-conditioning system also comprises: the refrigerant circulation master loop being made up of compressor, four-way valve, vaporizer, main electric expansion valve and condenser.
Further, this frequency converter air-conditioning system also comprises: the interchanger being connected on refrigerant circulation master loop and secondary electric expansion valve; The adjacent outdoor electric-controlled box of described interchanger is arranged.
Further, one end of interchanger is connected on the refrigerant circulation master loop between condenser and main electric expansion valve, and the other end is connected with one end of secondary electric expansion valve; The other end of described secondary electric expansion valve is connected on the described refrigerant circulation master loop between described main electric expansion valve and vaporizer; Described interchanger, secondary electric expansion valve and described condenser, four-way valve, compressor and vaporizer form refrigerant circulation subloop.
Further, one end of interchanger is connected on the refrigerant circulation master loop between main electric expansion valve and vaporizer, and the other end is connected with one end of secondary electric expansion valve; The other end of described secondary electric expansion valve is connected on the described refrigerant circulation master loop between described main electric expansion valve and described vaporizer; Described interchanger, secondary electric expansion valve and described main electric expansion valve, condenser, four-way valve, compressor and vaporizer form refrigerant circulation subloop.
Further, one end of interchanger is connected on the refrigerant circulation master loop between four-way valve and vaporizer, and the other end is connected with one end of secondary electric expansion valve; The other end of described secondary electric expansion valve is connected on the described refrigerant circulation master loop between described four-way valve and described vaporizer; Described interchanger, secondary electric expansion valve and described condenser, main electric expansion valve, vaporizer, four-way valve and compressor form refrigerant circulation subloop.
Further, this frequency converter air-conditioning system also comprises: outdoor fan and indoor fan; Described outdoor fan is arranged in the outdoor machine of described frequency converter air-conditioning system; Described indoor fan is arranged in the indoor machine of described frequency converter air-conditioning system.
Further, in this frequency converter air-conditioning system, the refrigerant circulation master loop between main electric expansion valve and vaporizer is provided with two-way stopping valve.
Further, in this frequency converter air-conditioning system, the refrigerant circulation master loop between four-way valve and vaporizer is provided with three-way cut-off valve.
Compared with prior art, the useful effect of the present invention is:
The present invention provides a kind of frequency converter air-conditioning system for hot environment, the outdoor electric-controlled box of this frequency converter air-conditioning system is provided with semi-conductor refrigeration part, electric-controlled box can be carried out cooling process by this semi-conductor refrigeration part in time, even if in the environment of outdoor high temperature, temperature in electric-controlled box also can not exceed the normal operation temperature of electric-controlled box itself, can ensureing that air-conditioning system still can normally use in hot environment, suitability is better.
In order to above-mentioned and relevant object, one or more embodiment comprise after will illustrate in detail and the feature that particularly points out in the claims. Explanation and accompanying drawing below illustrate some illustrative aspects in detail, and its instruction is only some modes in the various modes that can utilize of the principle of each embodiment. Other benefit and novel features are considered and become obvious by reference to the accompanying drawings by along with detailed explanation below, and the disclosed embodiments to be comprised all these aspects and theirs is equivalent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the frequency converter air-conditioning system for hot environment of the embodiment of the present invention;
Fig. 2 is the structural representation of the frequency converter air-conditioning system for hot environment of the embodiment of the present invention;
Fig. 3 is the structural representation of the frequency converter air-conditioning system for hot environment of the embodiment of the present invention;
Fig. 4 is the structural representation of the frequency converter air-conditioning system for hot environment of the embodiment of the present invention.
Embodiment
The following description and drawings fully show specific embodiment of the invention scheme, put into practice them to enable those skilled in the art to. Embodiment only represents possible change. Unless explicitly requested, otherwise independent parts and function are optional, and the order operated can change. The part of some embodiments and feature can be included in or replace part and the feature of other embodiments. The scope of embodiment of the present invention comprises the whole scope of claim book, and the jljl such as all obtainable of claim book. Herein, these embodiments of the present invention can be represented individually or always with term " invention ", this is only used to conveniently, and if in fact disclosing the invention more than, is not that the scope automatically being limited this application is any single invention or invents design.
Now in conjunction with the accompanying drawings, it is the structure iron of frequency converter air-conditioning system for hot environment in some optional embodiments shown in Fig. 1; Shown in Fig. 2 is the structure iron of frequency converter air-conditioning system for hot environment in some optional embodiments; Shown in Fig. 3 is the structure iron of frequency converter air-conditioning system for hot environment in some optional embodiments; Shown in Fig. 4 is the structure iron of frequency converter air-conditioning system for hot environment in some optional embodiments.
As Figure 1-4, in some optional embodiments, disclosing a kind of frequency converter air-conditioning system for hot environment, this frequency converter air-conditioning system comprises: the outdoor electric-controlled box 2 being arranged in the outdoor machine 1 of frequency converter air-conditioning system and semi-conductor refrigeration part 3; Described semi-conductor refrigeration part 3 is connected with the power electric of described outdoor electric-controlled box 2, it is preferable that, this power supply is direct supply; The cold junction of described semi-conductor refrigeration part 3 is arranged at the inside of described outdoor electric-controlled box 2, and its hot junction is arranged at the outside of described outdoor electric-controlled box 2. After this semi-conductor refrigeration part 3 leads to direct current, its cold junction can continue to be lowered the temperature by outdoor electric-controlled box 2, the temperature avoiding automatically controlled plate in this outdoor electric-controlled box 2, higher than working temperature, ensure that this frequency converter air-conditioning system can normally use in the environment of high temperature, and suitability is better.
Further, this frequency converter air-conditioning system also comprises: the cooling blower fan 4 being arranged in outdoor electric-controlled box 2; The cold junction of the adjacent semi-conductor refrigeration part 3 of described cooling blower fan 4 is arranged. After the cold junction of semi-conductor refrigeration part 3 arranges cooling blower fan 4, it is to increase the speed of this cold junction with convective heat exchange in outdoor electric-controlled box 2, thus improve the efficiency lowered the temperature in this outdoor electric-controlled box 2, cooling-down effect is better.
Further, this frequency converter air-conditioning system also comprises: the refrigerant circulation master loop being made up of compressor 5, four-way valve 6, vaporizer 7, main electric expansion valve 8 and condenser 9.
Further, this frequency converter air-conditioning system also comprises: the interchanger 10 being connected on refrigerant circulation master loop and secondary electric expansion valve 11; The adjacent outdoor electric-controlled box 2 of described interchanger 10 is arranged. In the specific implementation, it is possible to be connected on the refrigerant circulation master loop between condenser 9 and main electric expansion valve 8 one end of interchanger 10, the other end is connected with one end of secondary electric expansion valve 11;The other end of described secondary electric expansion valve 11 is connected on the described refrigerant circulation master loop between described main electric expansion valve 8 and vaporizer 7; Described interchanger 10, secondary electric expansion valve 11 form refrigerant circulation subloop with described condenser 9, four-way valve 6, compressor 5 and vaporizer 7. Can also being connected to one end of interchanger 10 on the described refrigerant circulation master loop between described main electric expansion valve 8 and described vaporizer 7, the other end is connected with one end of described secondary electric expansion valve 11; The other end of described secondary electric expansion valve 11 is connected on the described refrigerant circulation master loop between described main electric expansion valve 8 and described vaporizer 7; Described interchanger 10, secondary electric expansion valve 11 form refrigerant circulation subloop with described main electric expansion valve 8, condenser 9, four-way valve 6, compressor 5 and vaporizer 7. Can also being connected to one end of interchanger 10 on the described refrigerant circulation master loop between described four-way valve 6 and described vaporizer 7, the other end is connected with one end of described secondary electric expansion valve 11; The other end of described secondary electric expansion valve 11 is connected on the described refrigerant circulation master loop between described four-way valve 6 and described vaporizer 7; Described interchanger 10, secondary electric expansion valve 11 form refrigerant circulation subloop with described condenser 9, main electric expansion valve 8, vaporizer 7, four-way valve 6 and compressor 5. After interchanger 10 is connected on refrigerant circulation master loop, the refrigerant of part low-temp low-pressure can flow in refrigerant circulation subloop, that is flow through this interchanger 10, in this interchanger 10, high temperature air around the refrigerant of low-temp low-pressure and the outdoor electric-controlled box 2 of next-door neighbour carries out convective heat exchange, the environment around this outdoor electric-controlled box 2 is made to reach the effect of cooling, further ensure the effect of the working temperature reducing this outdoor electric-controlled box 2, that is, further ensure the normal operation of frequency converter air-conditioning system in hot environment, it may also be useful to better effects if. In addition, the flow state of refrigerant in refrigerant circulation subloop can be controlled by controlling the using state of secondary electric expansion valve 11, and then reach the regulation and control of the cooling to outdoor electric-controlled box 2, meanwhile, secondary electric expansion valve 11 can also be replaced as thermal expansion valve, magnetic valve or pressure switch etc.
Further, this frequency converter air-conditioning system also comprises: outdoor fan 12 and indoor fan 13; Described outdoor fan 12 is arranged in the outdoor machine 1 of described frequency converter air-conditioning system; Described indoor fan 13 is arranged in the indoor machine 14 of described frequency converter air-conditioning system. In this frequency converter air-conditioning system refrigerating operaton process, indoor fan 13 improves the heat exchange efficiency of vaporizer 7 in the indoor machine 14 of this frequency converter air-conditioning system, the heat exchange efficiency that simultaneously improve interchanger 10 in refrigerant circulation subloop of outdoor fan 12 heat exchange efficiency of condenser 9 in the outdoor machine 1 improving this frequency converter air-conditioning system.
Further, refrigerant circulation master loop between main electric expansion valve 8 and vaporizer 7 is provided with two-way stopping valve 15. Refrigerant circulation master loop between four-way valve 6 and vaporizer 7 is provided with three-way cut-off valve 16.
The outdoor electric-controlled box of the frequency converter air-conditioning system of the present invention is provided with semi-conductor refrigeration part, outdoor electric-controlled box can be carried out cooling process by this semi-conductor refrigeration part in time, even if in the environment of outdoor high temperature, temperature in electric-controlled box also can not exceed the normal operation temperature of electric-controlled box itself, can ensureing that air-conditioning system still can normally use in hot environment, suitability is better. And, by arranging refrigerant circulation subloop, part low temperature refrigerant and semi-conductor refrigeration part can be adopted outdoor electric-controlled box to be carried out cooling process simultaneously, the phenomenon that the automatically controlled plate ensured in outdoor electric-controlled box can not be damaged, effectively extends automatically controlled plate and the work-ing life of air-conditioning system self.
In a word, the foregoing is only embodiments of the invention, only for illustration of the principle of the present invention, it is not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the frequency converter air-conditioning system for hot environment, it is characterised in that, comprising:
The outdoor electric-controlled box being arranged in the outdoor machine of frequency converter air-conditioning system and semi-conductor refrigeration part;
Described semi-conductor refrigeration part is connected with the power electric of described outdoor electric-controlled box;
The cold junction of described semi-conductor refrigeration part is arranged at the inside of described outdoor electric-controlled box, and its hot junction is arranged at the outside of described outdoor electric-controlled box.
2. frequency converter air-conditioning system according to claim 1, it is characterised in that, also comprise: the cooling blower fan being arranged in described outdoor electric-controlled box; The cold junction of the adjacent described semi-conductor refrigeration part of described cooling blower fan is arranged.
3. frequency converter air-conditioning system according to claim 2, it is characterised in that, also comprise: the refrigerant circulation master loop being made up of compressor, four-way valve, vaporizer, main electric expansion valve and condenser.
4. frequency converter air-conditioning system according to claim 3, it is characterised in that, also comprise: the interchanger being connected on described refrigerant circulation master loop and secondary electric expansion valve; The adjacent described outdoor electric-controlled box of described interchanger is arranged.
5. frequency converter air-conditioning system according to claim 4, it is characterized in that, one end of described interchanger is connected on the described refrigerant circulation master loop between described condenser and described main electric expansion valve, and the other end is connected with one end of described secondary electric expansion valve; The other end of described secondary electric expansion valve is connected on the described refrigerant circulation master loop between described main electric expansion valve and described vaporizer; Described interchanger, secondary electric expansion valve and described condenser, four-way valve, compressor and vaporizer form refrigerant circulation subloop.
6. frequency converter air-conditioning system according to claim 4, it is characterized in that, one end of described interchanger is connected on the described refrigerant circulation master loop between described main electric expansion valve and described vaporizer, and the other end is connected with one end of described secondary electric expansion valve; The other end of described secondary electric expansion valve is connected on the described refrigerant circulation master loop between described main electric expansion valve and described vaporizer; Described interchanger, secondary electric expansion valve and described main electric expansion valve, condenser, four-way valve, compressor and vaporizer form refrigerant circulation subloop.
7. frequency converter air-conditioning system according to claim 4, it is characterised in that, one end of described interchanger is connected on the described refrigerant circulation master loop between described four-way valve and described vaporizer, and the other end is connected with one end of described secondary electric expansion valve; The other end of described secondary electric expansion valve is connected on the described refrigerant circulation master loop between described four-way valve and described vaporizer; Described interchanger, secondary electric expansion valve and described condenser, main electric expansion valve, vaporizer, four-way valve and compressor form refrigerant circulation subloop.
8. frequency converter air-conditioning system according to claim 5-7 any one, it is characterised in that, also comprise: outdoor fan and indoor fan; Described outdoor fan is arranged in the outdoor machine of described frequency converter air-conditioning system; Described indoor fan is arranged in the indoor machine of described frequency converter air-conditioning system.
9. frequency converter air-conditioning system according to claim 8, it is characterised in that, the described refrigerant circulation master loop between described main electric expansion valve and described vaporizer is provided with two-way stopping valve.
10. frequency converter air-conditioning system according to claim 9, it is characterised in that, the described refrigerant circulation master loop between described four-way valve and described vaporizer is provided with three-way cut-off valve.
CN201610124852.0A 2016-03-04 2016-03-04 Frequency converter air-conditioning system for high-temperature environment CN105674433A (en)

Priority Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106091282A (en) * 2016-06-27 2016-11-09 美的集团武汉制冷设备有限公司 The control method of air-conditioner outdoor unit
CN110044032A (en) * 2019-04-15 2019-07-23 广东美的制冷设备有限公司 The control method of conditioner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005030708A (en) * 2003-07-08 2005-02-03 Sunpot Co Ltd Cooling structure for semiconductor for controlling geothermal heat pump
CN202085437U (en) * 2011-06-27 2011-12-21 Tcl空调器(中山)有限公司 Variable-frequency air conditioner heat radiator
CN203478506U (en) * 2013-09-03 2014-03-12 海尔集团公司 Cooling device for electronic control module of air conditioner outdoor unit
CN104197444A (en) * 2014-08-26 2014-12-10 广东美的制冷设备有限公司 Air conditioner and refrigerated container integrated machine and operation control method thereof
CN104848438A (en) * 2015-05-20 2015-08-19 广东志高暖通设备股份有限公司 Variable frequency air conditioner and radiator of outdoor nit thereof
CN105371523A (en) * 2014-08-29 2016-03-02 青岛海尔空调器有限总公司 Air conditioner refrigerating loop and air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005030708A (en) * 2003-07-08 2005-02-03 Sunpot Co Ltd Cooling structure for semiconductor for controlling geothermal heat pump
CN202085437U (en) * 2011-06-27 2011-12-21 Tcl空调器(中山)有限公司 Variable-frequency air conditioner heat radiator
CN203478506U (en) * 2013-09-03 2014-03-12 海尔集团公司 Cooling device for electronic control module of air conditioner outdoor unit
CN104197444A (en) * 2014-08-26 2014-12-10 广东美的制冷设备有限公司 Air conditioner and refrigerated container integrated machine and operation control method thereof
CN105371523A (en) * 2014-08-29 2016-03-02 青岛海尔空调器有限总公司 Air conditioner refrigerating loop and air conditioner
CN104848438A (en) * 2015-05-20 2015-08-19 广东志高暖通设备股份有限公司 Variable frequency air conditioner and radiator of outdoor nit thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106091282A (en) * 2016-06-27 2016-11-09 美的集团武汉制冷设备有限公司 The control method of air-conditioner outdoor unit
CN110044032A (en) * 2019-04-15 2019-07-23 广东美的制冷设备有限公司 The control method of conditioner

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Application publication date: 20160615