CN100353127C - High efficiency air conditioner - Google Patents
High efficiency air conditioner Download PDFInfo
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- CN100353127C CN100353127C CNB2004100838814A CN200410083881A CN100353127C CN 100353127 C CN100353127 C CN 100353127C CN B2004100838814 A CNB2004100838814 A CN B2004100838814A CN 200410083881 A CN200410083881 A CN 200410083881A CN 100353127 C CN100353127 C CN 100353127C
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Abstract
The present invention relates to a high efficiency air conditioner, an indoor heat exchanger is composed of a first heat exchanger, a second heat exchanger and a third heat exchanger, wherein the third heat exchanger is a double-row three-fold heat exchanger, and the third heat exchanger is divided into two sections which are connected in series. The outside of the third heat exchanger is provided with a first single-row heat exchanger and a second single-row heat exchanger which are connected in series to be connected with the third heat exchanger. An air inlet pipe and an air outlet pipe of a compressor, an outdoor machine, the heat exchanger of the outdoor machine, an indoor machine and the heat exchanger of the indoor machine are respectively provided with a temperature sensor. The temperature sensor is connected with a control circuit to control a compressor, a blower and an electronic expansion valve. The present invention provides the high efficiency air conditioner which adopts R410A environmental protection refrigerant with no damage for an ozone layer, an R410A high efficiency direct-current frequency conversion compressor, a design for optimizing indoor and outdoor heat exchangers and the optimal refrigeration system matching. The purpose of high efficiency and energy saving of the air conditioner are reached, and EER value reaches more than 6.0.
Description
Technical field
The present invention relates to a kind of air-conditioner, particularly a kind of high efficiency air conditioner with high energy efficiency.
Background technology
In recent years, energy-conserving and environment-protective are directions, particularly 03 year second half year of room air conditioner development always, because the supply of electric power deficiency, the power cuts to limit consumption situation has all appearred in Chinese many places.In the case, Chinese market has produced strong demand to high efficiency energy saving air conditioner.Domestic existing air-conditioning product efficiency is all lower, and its EER (energy efficiency ratio Energy Efficiency Ratio) is worth generally below 3.0W/W.
The structure of existing domestic air conditioner as shown in Figure 1, its mainly by: compressor 1, four-way change-over valve 2, outdoor heat exchanger 3, electric expansion valve 4, indoor heat exchanger 5 are formed.Be useful on the pipeline, the valve that connect above-mentioned parts in addition, blower fan supply air system, control circuit and contain the shell of above-mentioned parts.Wherein, the air inlet pipe of compressor 1 and blast pipe connect the heat exchanger of outdoor heat exchanger 3 and indoor heat exchanger 5 respectively by four-way change-over valve 2, are provided with stop valve 13 on the pipeline that connects indoor heat exchanger 5.The other end of the outdoor heat exchanger 3 and the heat exchanger of indoor heat exchanger 5 is connected with stop valve 14 by electric expansion valve 4.In above-mentioned outdoor heat exchanger 3 and indoor heat exchanger 5, also be respectively equipped with outdoor machine fan 15 and indoor machine fan 6.In the closed system that above-mentioned pipeline connects and composes, be full of cold-producing medium (refrigerant).In order to reduce the volume of indoor set, described indoor set is a wall hanging machine, in order to reduce the volume of indoor set, it is three-bend that described indoor side heat exchanger normally is arranged to inside and outside two-layer biserial arranged side by side, as shown in Figure 1, and inside and outside two row of the three-bend indoor side heat exchanger of described biserial be parallel connection in succession.But the indoor side heat exchanger that the biserial of this parallel connection is three-bend causes shunting inhomogeneous because flow process is longer easily, can not effectively bring into play the usefulness of heat exchanger, and the efficiency of air-conditioner is reduced.
For improving the efficiency of air-conditioner, existing technical measures have: 1, adopt high-effect compressor, for example frequency-changeable compressor; 2, improve the heat exchanger effectiveness of heat exchanger, adopt the large tracts of land heat exchanger, volume is big, cost is high; 3, select the high-power little blower fan of air quantity for use.Present domestic air-conditioner also adopts the R22 cold-producing medium mostly, and efficiency is lower.
Summary of the invention
Technical problem to be solved by this invention is at the above-mentioned deficiency of prior art, to provide a kind of high efficiency air conditioner with high energy efficiency.
The technical scheme that realizes high efficiency air conditioner of the present invention is as follows:
A kind of high efficiency air conditioner comprises: compressor, four-way change-over valve, outdoor heat exchanger, electric expansion valve, biserial three-bend indoor heat exchanger in parallel and control circuit; It is characterized in that:
Its indoor heat exchanger is to be made of first heat exchanger, second heat exchanger, the 3rd heat exchanger three parts, wherein, the 3rd heat exchanger is the three-bend heat exchanger of a biserial, and is divided into two sections of series connection, and each section is that the heat-exchange tube by two groups of a plurality of series connection composes in parallel; Be provided with first heat exchanger and second heat exchanger in the 3rd heat exchanger outside, described first, second heat exchanger is single-row heat exchanger, is connected the 3rd heat exchanger after first heat exchanger and second heat exchanger in series;
On the air inlet pipe of compressor and blast pipe, be respectively equipped with exhaust temperature detector and air-breathing temperature detector; Be provided with outdoor ring temperature temperature detector in off-premises station, the heat exchanger of off-premises station is provided with the defrosting temperature detector; Be provided with indoor ring temperature temperature detector in indoor set, the heat exchanger of indoor set is provided with the indoor coil temperature detector; Described temperature detector connects control circuit, control compressor, blower fan and electric expansion valve.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents:
Described high efficiency air conditioner is characterized in that: described compressor is the efficient direct current frequency-changeable compressor.
Described high efficiency air conditioner, it is characterized in that: the spacing of first and second heat exchanger fins in the described indoor heat exchanger is greater than the spacing of the 3rd heat exchanger fin, and to leave between first and second heat exchangers and the 3rd heat exchanger be the gap of 2～3mm.
Described high efficiency air conditioner is characterized in that: the spacing of first and second heat exchanger fins in the described indoor heat exchanger is 1.2 times of the 3rd heat exchanger fin spacing.
Described high efficiency air conditioner is characterized in that: institute's cold-producing medium of adorning is the environmental protection refrigerant that ozone layer is not had destruction in this air-conditioner.
Described high efficiency air conditioner is characterized in that: the model of described environmental protection refrigerant is R410A.
High efficiency air conditioner provided by the present invention, indoor, outdoor heat exchanger design and the best refrigeration system coupling of ozone layer not being had R410A environmental protection refrigerant, R410A efficient direct current frequency-changeable compressor, the optimization of destruction have been adopted, reach the energy-efficient purpose of air-conditioning, the EER value is reached more than 6.0.
For architectural feature of the present invention and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows:
Description of drawings
Fig. 1 is the schematic diagram of existing air-conditioner.
Fig. 2 is the structural representation of high efficiency air conditioner of the present invention.
Fig. 3 is the partial enlarged drawing of the indoor heat exchanger of Fig. 2.
The specific embodiment
Shown in Figure 2 is the organigram of high efficiency air conditioner provided by the present invention.It comprises: compressor 1, four-way change-over valve 2, outdoor heat exchanger 3, electric expansion valve 4, indoor heat exchanger 5 and control circuit; Wherein: the heat exchanger in the indoor heat exchanger is to be made of the first heat exchanger a, the second heat exchanger b, the 3rd heat exchanger c three parts, and wherein, the 3rd heat exchanger c is a biserial 3 folding formula heat exchangers.Biserial in the described biserial 3 folding formula heat exchangers is meant by inside and outside two row seriess pipe to be formed, this two row series pipe is arranged side by side mutually, 3 foldings are meant that these inside and outside two row seriess pipe are bent into three sections respectively according to the cross sectional shape of chamber interior walls on-hook, in the present embodiment, it is AB section and CD section that this biserial 3 folding formula heat exchangers further are divided into two sections of series connection, wherein, described AB section is that heat-exchange tube by two groups of a plurality of series connection composes in parallel; The CD section also is that the heat-exchange tube by two groups of a plurality of series connection composes in parallel; Be provided with the first heat exchanger a and the second heat exchanger b in the 3rd heat exchanger outside, the described first heat exchanger a and the second heat exchanger b are single-row heat exchanger, promptly formed by a row series pipe, the first heat exchanger a is connected the A point of the AB section of the 3rd heat exchanger with second heat exchanger c series connection back, enter to be divided into merging by the B point sink again behind the two-way by the A point and enter the C point of CD section, enter by the C point and converge by the D point again after being divided into two-way.As shown in Figure 3, the characteristics of above-mentioned indoor heat exchanger have been to experience in the flow of refrigerant process interflow process of shunting again.
Cold-producing medium is flowed through after first heat exchanger and second heat exchanger during refrigeration, be divided into two parts (A point) when entering the 3rd heat exchanger, this two parts cold-producing medium is collaborated together again at the B point after several pipelines of having flowed through, and then be allocated to two parts again again at the C point, flow through after the whole heat exchanger by D point discharge indoor heat exchanger.
And cold-producing medium enters the 3rd heat exchanger by a D point minute two-way earlier when heating, at C point two parts interflow together, and then be split into two parts once more at the B point, and collaborating to become a part once more at the A point then, second, first heat exchanger of flowing through is again discharged indoor heat exchanger.
The type of flow that shunt at this interflow again, the uneven problem of the shunting that has been easy to generate when having avoided flow process longer has improved the heat exchange property of heat exchanger, thereby has improved the Energy Efficiency Ratio of refrigeration system.The structural design of this heat exchanger also makes has held more heat exchanger copper pipe in limited space, increased heat exchanger area, thereby improved the Energy Efficiency Ratio of refrigeration system.
When setting refrigeration mode, the degree of superheat that mainly depends on indoor coil temperature detector 8 and compressor air-discharging temperature detector 10 detected cold-producing mediums is controlled the aperture of electric expansion valve 4.When setting heating mode, the degree of superheat that mainly depends on outdoor defrosting temperature detector 12 and compressor air suction temperature detector 9 detected cold-producing mediums is controlled the aperture of electric expansion valve 4.Simplified control by the control method that adopts the degree of superheat to electronic expansion valve opening, when making in air-conditioner running wind speed setting, variation of ambient temperature electronic expansion valve opening automatically rapid adjustment to best opening value, make refrigeration system be in the optimum Match state, improved the Energy Efficiency Ratio of air-conditioner.Indoor ring temperature detector 7 and outdoor ring temperature detector 11 sensing chamber's internal and external environment temperature, the temperature of setting according to detected indoor and outdoor surroundings temperature and user's remote controller is controlled the rotating speed of compressor operation frequency and fan.
Air-conditioner of the present invention, when outdoor environment temperature lower and when needing cooling operation than indoor environment temperature, refrigeration in the time of can obtaining low temperature by the method for setting indoor coil pipe and the target difference of indoor environment temperature makes that carrying out cryogenic refrigeration under-15 ℃ of conditions can be easy to realization.
Air-conditioner of the present invention, when air-conditioner is in the cold start delivery temperature when low, by detecting delivery temperature the degree of superheat desired value of setting is revised, accelerate the speed of electronic expansion valve events, make that delivery temperature rises to more than the setting at short notice, quicken the effect of cooling and warming.
In the high efficiency air conditioner of the present invention, in the described indoor heat exchanger, first heat exchanger and second heat exchanger are the single-row heat exchanger of 4 copper pipes, and the 3rd heat exchanger is 2 row, the 3 folding formula heat exchangers with 36 copper pipes, copper pipe overcoat fin.The spacing of the fin of the first heat exchanger a and the second heat exchanger b preferably is 1.2 times greater than the spacing of the 3rd heat exchanger c fin, so can reach the purpose that obtains the reasonable intake of each several part.And leave the gap between the first heat exchanger a and the second heat exchanger b and the 3rd heat exchanger c, be about 2～3mm, its purpose is to make the 3rd heat exchanger also can obtain intake preferably.
Institute's cold-producing medium of adorning is the environmental protection refrigerant that ozone layer is not had destruction in this air-conditioner, and its model is R410A.
Claims (6)
1, a kind of high efficiency air conditioner comprises: compressor, four-way change-over valve, outdoor heat exchanger, electric expansion valve, biserial three-bend indoor heat exchanger in parallel and control circuit; It is characterized in that:
Its indoor heat exchanger is to be made of first heat exchanger, second heat exchanger, the 3rd heat exchanger three parts, wherein, the 3rd heat exchanger is the three-bend heat exchanger of a biserial, and is divided into two sections of series connection, and each section is that the heat-exchange tube by two groups of a plurality of series connection composes in parallel; Be provided with first heat exchanger and second heat exchanger in the 3rd heat exchanger outside, described first, second heat exchanger is single-row heat exchanger, is connected the 3rd heat exchanger after first heat exchanger and second heat exchanger in series;
On the air inlet pipe of compressor and blast pipe, be respectively equipped with exhaust temperature detector and air-breathing temperature detector; Be provided with outdoor ring temperature temperature detector in off-premises station, the heat exchanger of off-premises station is provided with the defrosting temperature detector; Be provided with indoor ring temperature temperature detector in indoor set, the heat exchanger of indoor set is provided with the indoor coil temperature detector; Described temperature detector connects control circuit, control compressor, blower fan and electric expansion valve.
2, high efficiency air conditioner according to claim 1 is characterized in that: described compressor is the efficient direct current frequency-changeable compressor.
3, high efficiency air conditioner according to claim 1, it is characterized in that: the spacing of first and second heat exchanger fins in the described indoor heat exchanger is greater than the spacing of the 3rd heat exchanger fin, and to leave between first and second heat exchangers and the 3rd heat exchanger be the gap of 2～3mm.
4, high efficiency air conditioner according to claim 3 is characterized in that: the spacing of first and second heat exchanger fins in the described indoor heat exchanger is 1.2 times of the 3rd heat exchanger fin spacing.
5, high efficiency air conditioner according to claim 1 is characterized in that: institute's cold-producing medium of adorning is the environmental protection refrigerant that ozone layer is not had destruction in this air-conditioner.
6, high efficiency air conditioner according to claim 5 is characterized in that: the model of described environmental protection refrigerant is R410A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100838814A CN100353127C (en) | 2004-10-21 | 2004-10-21 | High efficiency air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100838814A CN100353127C (en) | 2004-10-21 | 2004-10-21 | High efficiency air conditioner |
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| CN1763455A CN1763455A (en) | 2006-04-26 |
| CN100353127C true CN100353127C (en) | 2007-12-05 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095288B (en) * | 2011-03-03 | 2013-02-13 | Tcl空调器(中山)有限公司 | Evaporator structure and control method of refrigerant flow |
| CN108981215A (en) * | 2018-07-02 | 2018-12-11 | 合肥天鹅制冷科技有限公司 | A kind of air conditioner refrigerating surplus energy utility method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10246506A (en) * | 1997-03-03 | 1998-09-14 | Hitachi Ltd | Indoor unit for air conditioner |
| JP2001116347A (en) * | 1999-10-20 | 2001-04-27 | Fujitsu General Ltd | Air conditioner |
| JP2002221353A (en) * | 2001-12-10 | 2002-08-09 | Mitsubishi Electric Corp | Air conditioner |
| CN1441203A (en) * | 2002-02-28 | 2003-09-10 | 东芝开利株式会社 | Air conditioner |
| CN2747501Y (en) * | 2004-10-22 | 2005-12-21 | 海尔集团公司 | High-efficient air conditioner |
-
2004
- 2004-10-21 CN CNB2004100838814A patent/CN100353127C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10246506A (en) * | 1997-03-03 | 1998-09-14 | Hitachi Ltd | Indoor unit for air conditioner |
| JP2001116347A (en) * | 1999-10-20 | 2001-04-27 | Fujitsu General Ltd | Air conditioner |
| JP2002221353A (en) * | 2001-12-10 | 2002-08-09 | Mitsubishi Electric Corp | Air conditioner |
| CN1441203A (en) * | 2002-02-28 | 2003-09-10 | 东芝开利株式会社 | Air conditioner |
| CN2747501Y (en) * | 2004-10-22 | 2005-12-21 | 海尔集团公司 | High-efficient air conditioner |
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| CN1763455A (en) | 2006-04-26 |
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