CN100580332C - Air-conditioning evaporator and its refrigerant shunting mode - Google Patents
Air-conditioning evaporator and its refrigerant shunting mode Download PDFInfo
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- CN100580332C CN100580332C CN200510109375A CN200510109375A CN100580332C CN 100580332 C CN100580332 C CN 100580332C CN 200510109375 A CN200510109375 A CN 200510109375A CN 200510109375 A CN200510109375 A CN 200510109375A CN 100580332 C CN100580332 C CN 100580332C
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Abstract
The invention discloses an air-conditioner evaporator, divided into upper, middle and lower segments. Each segment comprises multiple cooling fins closed with each other together; multiple U-shaped heat exchanging pipes through cooling fin and multiple connecting pipes, by which each heat exchanging pipe is connected. Heat exchanging pipe in the upper and middle segments are assigned in two rows. Heat exchanging pipe of side lower segment of air-conditioner evaporator is assigned in one row. Heat exchanging pipe of the lower segment is connected with the one of middle segment so that the refrigerant flows from the heat exchanging pipe under another two refrigerant inlets by heat exchanging pipe of the lower segment. The pipe in one row is applied in the lower segment of three-folded evaporator. The inlet of the third refrigerant is set in the lower pipe and the outlet is set under anther two refrigerant inlets. In this way the cubage is decreased while the uneven temperature of each position in heat exchanging pipe is avoided, and heat air is prevented so as to guarantee good heat exchanging effect of air-conditioner.
Description
Technical field
The present invention relates to a kind of A/C evaporator, relate in particular to detachable air conditioner evaporimeter and refrigerant shunting mode thereof.
Background technology
The effect of air-conditioner is exactly to be in the desirable temperature regime of people in the holding chamber, and it is to do energy exchange by the continuous circulation and the room air of cold-producing medium, to reach the regulating action of indoor temperature.
For air-conditioner, as shown in Figure 1, the cold-producing medium circulation comprises compressor 2, condenser 3, capillary 4 and evaporimeter 1, and with cold-producing medium distributor 7 that separates and the connector 8 that gathers cold-producing medium.Compressor 2 is used for cold-producing medium is compressed to HTHP, condenser 3 is as heat exchanger, make the refrigerant liquid of HTHP change into the high-pressure refrigerant of general temperature, capillary 4 is used to lower the pressure of cold-producing medium, thereby evaporimeter 1 is by making indoor air and reducing indoor temperature by the cold-producing medium generation heat exchange that capillary 4 obtains.
In order effectively to improve the heat exchange effect of evaporimeter or to adapt to different indoor sets, the shunting stroke of the structure of evaporimeter and cold-producing medium also has many variations, such as, application number 97209139.4 discloses a kind of multi-bended evaporimeter of air conditioner, it comprises parts such as fan, multi-bended fin, multi-bended fin collar is installed around fan, side near fan on many folding fin has the bending mouth, opposite side and the corresponding position of bending mouth at fin have crooked mouthful, are provided with lacing wire between bending mouth and crooked mouth.
Application number 98243194.5 discloses the multi-bended evaporimeter of a kind of indoor split-type air conditioner, comprise fin and copper pipe, but it also comprises the evaporimeter side plate of a bending, the bending part of side plate is positioned at the evaporator fin bending part, be provided with several holes on side plate, it is through on the copper pipe; It also comprises an evaporimeter side plate connecting plate, and the connecting plate archwise is provided with a setting circle arc flange that matches with the chassis thereon, also is provided with the groove that matches with the chassis hook thereon.
Publication number CN2420542Y discloses a kind of split wall hanging type air conditioner indoor unit, comprises base, casing, and tubular wine wheel is housed on the base, heat exchange support, heat exchanger, electric auxiliary heating parts.Wherein heat exchanger is a multi-bended heat exchanger more than three sections.In the inverted V-shaped space that forms above multi-bended heat exchanger more than three sections or its outside is equipped with electric auxiliary heating parts.
Application number 2004200044126.0, a kind of floor air conditioner evaporimeter is disclosed, air inlet place in the cabinet-type air conditioner casing is provided with spiral case, installing rack above the spiral case is provided with two folding formula evaporimeters, angle between two evaporimeters is 20～160 degree, this evaporimeter is made up of the individual layer copper pipe, perhaps is made up of the multilayer copper pipe, is herringbone and is obliquely installed on the installing rack in the air channel and installation site of its first folding and air channel air-out angle become between 60 to spend to the angle between 120 degree.The copper pipe number can be single row or multiple rows, and heat exchange is carried out in the system air-out of making full use of, and has effectively improved the heat exchange effect; After first folding had been passed through in air-out, wind speed slowed down, and secondary outlet diffuser forms less impact loss, and the pressure fluctuation and the noise that cause are less.
Application number is that 98121334.0 evaporimeters that disclose a kind of air-conditioner have the front portion, rear portion and by first, second and the 3rd heat-exchange tube formed of coolant channel independently.In first passage, cold-producing medium enters first row at the front row at rear portion, and circular flow is crossed whole rear portion, and the secondary series from the front row at rear portion flows out then.In second channel, cold-producing medium enters first row at anterior front row, and circular flow is through anterior top, and first row from the back row of front portion flow out then.In third channel, cold-producing medium enters the 5th row at anterior front row, the bottom that circular flow is anterior excessively, and the 7th row from the back row of front portion flow out then.
Application number is a fin row number identical (being two rows among Fig. 1) in each section of A/C evaporator of 98121334.0, the windage that forms in each section is also basic identical, the axial-flow fan and the general air inlet structure that cooperate air conditioner room unit to use, the wind field that forms each section basically is more or less the same, wind speed is basic identical, the heat-sinking capability of each section is also just basic identical, manages group when move towards to shunt, and walks to manage generally that number is identical gets final product by each section.
But for attractive in appearance and save the space, the volume of air conditioner room unit is more and more littler at present, like this since, also just require the evaporimeter in the indoor set to reduce volume, the ultra-thin evaporimeter of development and production is to satisfy the demand.
Summary of the invention
The object of the present invention is to provide a kind of A/C evaporator, this evaporimeter adopts ultrathin design,
When reducing volume, avoid heat exchanger tube temperature inequality everywhere, and can stop hot-air to enter, guaranteed the heat exchange effect that air-conditioning is good.
Another object of the present invention, be to provide a kind of shunting mode of A/C evaporator cold-producing medium, this refrigerant shunting mode is fit to the structural design of ultra-thin evaporimeter, guarantees that each section heat-sinking capability is basic identical in the three-bend evaporimeter, and obtain high heat exchange efficiency, and improve efficiency ratio.
In order to realize goal of the invention, a kind of A/C evaporator of the present invention, be divided into, neutralize following three sections, every section comprises: a plurality of fin together, a plurality of U type heat-exchange tubes and a plurality of tube connectors that are connected each heat-exchange tube that pass fin of closely being arranged in each other, the heat-exchange tube in epimere and stage casing are that front and back two rows distribute;
The heat-exchange tube of described A/C evaporator hypomere is single distribution, and the heat-exchange tube of hypomere communicates with stage casing part heat-exchange tube, makes this road cold-producing medium through the hypomere heat-exchange tube, from the heat-exchange tube outflow of below, other two-way refrigerant inlet zone.
Wherein, the middle part heat-exchange tube of arranging behind described hypomere heat-exchange tube and the described stage casing links to each other.
Specifically, any pipe links to each other in third and fourth that arrange behind described hypomere heat-exchange tube and the described stage casing or five heat-exchange tubes, to be connected to good with the 5th heat-exchange tube.
Described hypomere refrigerant inlet is located at first heat-exchange tube or last heat-exchange tube of hypomere; Described hypomere refrigerant outlet is located at first heat-exchange tube of arranging behind the stage casing.
Be located at for described stage casing refrigerant inlet and ranked first heat-exchange tube before described, outlet is located at and ranked fourth after described, any pipe in five or six heat-exchange tubes, and row has six row heat-exchange tubes behind the described stage casing.
The setting of described epimere refrigerating fluid discharging and feeding is identical with existing evaporimeter, and promptly refrigerant inlet is located at described epimere two heat extractions exchange Guan Zhonghou row's first heat-exchange tube, ranked first heat-exchange tube before outlet is located at described epimere.
A/C evaporator of the present invention is the hypomere employing single row of tubes at three-bend evaporimeter, reduces windage; And with the Third Road refrigerant inlet be located at the hypomere pipe, outlet is located at other two-way entrance area below, enter to stop hot-air; A/C evaporator of the present invention has not only changed the following folding structure of multi-bended radiator, has also changed the shunting mode of cold-producing medium simultaneously.
Evaporimeter of the present invention is applicable to ultra-thin type air-conditioner, because ultra-thin model structure restriction, hypomere is designed to a row, and other sections still are two rows, the windage that hypomere forms is significantly less than other two sections, wind speed by this place exceeds 1.5 times than its elsewhere, make this place's heat-sinking capability apparently higher than other two sections, as still streamed by former branch, can cause this place overheated serious and make refrigerating capacity descend, can cause hot blast (without the wind of cooling) to enter the air channel simultaneously under the bigger situation of indoor load, its dew-point temperature is higher than from the temperature of other two sections cold wind that enter, having caused with fixed attention, water-setting forms and blows water in the air channel or on the fan.
Like this, researcher of the present invention improves the shunting mode of the cold-producing medium of described evaporimeter, and concrete technical scheme is:
The refrigerant shunting mode of described a kind of A/C evaporator, comprise three refrigerant flow paths, first via cold-producing medium first front-seat heat-exchange tube from described epimere two heat extractions exchange pipe flows into, behind described epimere, ranked first the pipe outflow, the second road cold-producing medium, first front-seat heat-exchange tube from described stage casing two heat extractions exchange pipe flows into, behind described stage casing, ranked fourth, any pipe flows out five or six heat-exchange tubes, the Third Road cold-producing medium flows into from the heat-exchange tube of described hypomere, from the heat-exchange tube outflow of other belows, two-way refrigerant inlet zone.
Wherein said the second road cold-producing medium flows into the first front-seat heat-exchange tube in the described stage casing two heat extractions exchange pipe, flows through the heat-exchange tube at front row, stage casing then successively, and the 5th pipe of arranging behind the described stage casing flows out.
Described Third Road cold-producing medium can flow into from first heat-exchange tube or last heat-exchange tube of the heat-exchange tube of described hypomere.
Be preferably, described Third Road cold-producing medium flows into first heat-exchange tube of the heat-exchange tube of described hypomere, flows through the heat-exchange tube of hypomere successively, enters the 4th pipe of arranging behind the described stage casing, and first heat-exchange tube of arranging behind the described stage casing flows out.
The refrigerant shunting mode of A/C evaporator of the present invention at the A/C evaporator special structure design, adopts the Third Road import to be located on first pipe of hypomere, cover hypomere earlier, guarantee that under any loading condiction this section all is in the lower humidity province, can not enter hot blast from this section;
The exit portion of Third Road is located at the entrance area below (being to ranked first the pipe place behind the stage casing) of other two-way, because the Third Road evaporation fully, temperature overheating is more time the exit portion, be placed on other two-way import belows, can rely on the low temperature of other two-way imports to guarantee that this zone does not have hot-air and enters.A/C evaporator of the present invention and refrigerant shunting mode thereof are applicable to ultra-thin type evaporation.Device, the hypomere of three-bend evaporimeter adopts single row of tubes, reduces windage; And with the Third Road refrigerant inlet be located at the hypomere pipe, outlet is located at other two-way entrance area below, enter to stop hot-air; Guarantee that each section heat-sinking capability is basic identical in the three-bend evaporimeter, and obtain high heat exchange efficiency, and improve efficiency ratio.
Description of drawings
Fig. 1 is the structural representation of existing air-conditioner kind of refrigeration cycle;
Fig. 2 is the structure and the shunting mode schematic diagram of A/C evaporator of the present invention.
Among the figure:
1 evaporimeter, 11 fin
12 heat-exchange tubes, 13 tube connectors
121 evaporimeter epimeres
1211-1,1211-2,1211-3,1211-4,1211-5 epimere front row
1212-1,1212-2,1212-3,1212-4 arranges behind the 1212-5 epimere
122 evaporimeter stage casings
1221-1,1221-2,1221-3,1221-4,1221-5,1221-6, front row, stage casing
1222-1,1222-2,1222-3,1222-4,1222-5,1222-6 arranges behind the stage casing
123 (123-1,123-2,123-3,123-4) evaporimeter hypomeres
2 compressors, 3 condensers
4 capillaries, 5 fans
6 fans, 7 distributors
8 connectors
The specific embodiment
Cooperate appended graphic explanation in detail by specific embodiment below, so that the effect that is easier to understand purpose of the present invention, technology contents, characteristics and is reached.
As shown in Figure 2, the A/C evaporator 1 of present embodiment, be divided into 123 3 sections of epimere 121, stage casing 122 and hypomeres, every section comprises: a plurality of fin 11 together, a plurality of U type heat-exchange tubes 12 and a plurality of tube connectors 13 that are connected each heat-exchange tube 12 that pass fin 11 of closely being arranged in each other.
The heat-exchange tube in epimere 121 and stage casing 122 is that two rows distribute, and the front row 1211 of epimere 121 and back row 1212 respectively have 5 tubulations, and front row label successively is: 1211-1,1211-2,1211-3,1211-4,1211-5, after arrange successively that label is: 1212-1,1212-2,1212-3,1212-4,1212-5.This section cold-producing medium (first via just) inlet is located at back row's the first pipe 1212-1, and outlet is located at the first front-seat pipe 1211-1.
The front row 1221 in stage casing 122 and back row 1222 respectively have 6 tubulations, and front row label successively is: 1221-1,1221-2,1221-3,1221-4,1221-5,1221-6, after arrange successively that label is: 1222-1,1222-2,1222-3,1222-4,1222-5,1222-6.This section cold-producing medium (just the second tunnel) inlet is located at the first front-seat pipe 1221-1, and outlet is located at back row's the 5th pipe 1222-5.
The heat-exchange tube of hypomere 123 is single distribution, and 4 tubulations are arranged, and is respectively: 123-1,123-2,123-3,123-4.Wherein, ranked fourth pipe 1222-4 behind hypomere the 4th pipe 123-4 and the stage casing and link to each other by tube connector, this section cold-producing medium (Third Road just) inlet is located at the first pipe 123-1 of this section like this, outlet be located at arrange behind the stage casing first manage 1222-1.
The shunting mode of evaporator refrigerant of the present invention is:
The cold-producing medium that flows out from capillary is split into three the tunnel through distributor (not marking, same as the prior art), and the flow direction to this three road cold-producing medium describes respectively:
First via cold-producing medium flows into 121 liang of heat extraction exchanges of epimere Guan Zhonghou row's the first pipe 1212-1, flow through the two heat extractions exchange pipe of epimere then successively, be respectively 1212-2,1212-3,1212-4,1212-5,1211-5,1211-4,1211-3,1211-2 flows out to connector from the front-seat 1211-1 of epimere at last;
The second road cold-producing medium flows into first front-seat in the 122 liang of heat extraction exchanges in the stage casing pipe pipe 1221-1, flow through successively then the front row, stage casing heat-exchange tube, be respectively 1221-1,1221-2,1221-3,1221-4,1221-5,1221-6,1222-6, the 5th pipe 1222-5 that arranges behind the stage casing at last flows out to connector;
The Third Road cold-producing medium flows into the heat-exchange tube first pipe 123-1 of hypomere 123, flow through the heat-exchange tube 123-2 of hypomere successively, 123-3,123-4, enter stage casing 122 back rows' the 4th pipe 1222-4,1222-3 through arranging behind the stage casing successively again, 1222-2 flows out (the entrance area below that is in other two-way) to connector from the first pipe 1222-1 that arranges behind the stage casing at last.
Connector gathers inflow with three the tunnel and enters compressor, carries out the circulation second time.
The refrigerant shunting mode of this enforcement A/C evaporator has adopted the Third Road import to be located on first pipe of hypomere, covers hypomere earlier, guarantees that under any loading condiction this section all is in the lower humidity province, can not enter hot blast from this section; The exit portion of Third Road is located at the entrance area below (being to ranked first the pipe place behind the stage casing) of other two-way, because the Third Road evaporation fully, temperature overheating is more time the exit portion, be placed on other two-way import belows, can rely on the low temperature of other two-way imports to guarantee that this zone does not have hot-air and enters; Can not caused with fixed attention, water-setting forms and blows water in the air channel or on the fan.
The above is preferred embodiment of the present invention only, is not to be used for limiting scope of the invention process.So all doing according to the described shape of the present patent application scope, structure, feature and spirit all is equivalent variations or modification, all should be included within the claim of the present invention.
Claims (7)
1. A/C evaporator, be divided into, neutralize following three sections, every section comprises: a plurality of fin together, a plurality of U type heat-exchange tubes and a plurality of tube connectors that are connected each heat-exchange tube that pass fin of closely being arranged in each other, the heat-exchange tube in epimere and stage casing are that front and back two rows distribute;
It is characterized in that: the epimere refrigerant inlet is located at epimere two heat extractions exchange Guan Zhonghou row's first heat-exchange tube, ranked first heat-exchange tube before outlet is located at epimere; The stage casing refrigerant inlet ranked first heat-exchange tube before being located at the stage casing, and outlet is located at and ranked fourth behind the stage casing, any pipe in five or six heat-exchange tubes, and row has six row heat-exchange tubes behind the described stage casing; The hypomere refrigerant inlet is located at first heat-exchange tube or last heat-exchange tube of hypomere, and outlet is located at first heat-exchange tube of arranging behind the stage casing; The heat-exchange tube of described A/C evaporator hypomere is single distribution, and the heat-exchange tube of hypomere communicates with stage casing part heat-exchange tube, makes this road cold-producing medium through the hypomere heat-exchange tube, from the heat-exchange tube outflow of below, other two-way refrigerant inlet zone.
2. a kind of A/C evaporator according to claim 1 is characterized in that: the middle part heat-exchange tube of arranging behind described hypomere heat-exchange tube and the described stage casing links to each other.
3. a kind of A/C evaporator according to claim 2 is characterized in that: behind described hypomere heat-exchange tube and the described stage casing in arranged side by side third and fourth in row middle part or five heat-exchange tubes any pipe link to each other.
4. the refrigerant shunting mode of the described a kind of A/C evaporator of claim 1, comprise three refrigerant flow paths, first via cold-producing medium first front-seat heat-exchange tube from described epimere two heat extractions exchange pipe flows into, behind described epimere, ranked first the heat-exchange tube outflow, it is characterized in that: the second road cold-producing medium, first front-seat heat-exchange tube from described stage casing two heat extractions exchange pipe flows into, behind described stage casing, ranked fourth, any pipe flows out in five or six heat-exchange tubes, the Third Road cold-producing medium flows into from the heat-exchange tube of described hypomere, from the heat-exchange tube outflow of other belows, two-way refrigerant inlet zone.
5. the refrigerant shunting mode of a kind of A/C evaporator according to claim 4, it is characterized in that: described the second road cold-producing medium flows into the first front-seat heat-exchange tube in the described stage casing two heat extractions exchange pipe, flow through the heat-exchange tube at front row, stage casing then successively, the 5th heat-exchange tube of arranging behind the described stage casing flows out.
6. the refrigerant shunting mode of a kind of A/C evaporator according to claim 4 is characterized in that: described Third Road cold-producing medium flows into from first heat-exchange tube or last heat-exchange tube of the heat-exchange tube of described hypomere.
7. according to the refrigerant shunting mode of claim 4 or 6 described a kind of A/C evaporators, it is characterized in that: described Third Road cold-producing medium flows into first heat-exchange tube of the heat-exchange tube of described hypomere, flow through the heat-exchange tube of hypomere successively, enter the 4th heat-exchange tube of arranging behind the described stage casing, first heat-exchange tube of arranging behind the described stage casing flows out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510109375A CN100580332C (en) | 2005-10-19 | 2005-10-19 | Air-conditioning evaporator and its refrigerant shunting mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510109375A CN100580332C (en) | 2005-10-19 | 2005-10-19 | Air-conditioning evaporator and its refrigerant shunting mode |
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| CN1952517A CN1952517A (en) | 2007-04-25 |
| CN100580332C true CN100580332C (en) | 2010-01-13 |
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| CN200510109375A Active CN100580332C (en) | 2005-10-19 | 2005-10-19 | Air-conditioning evaporator and its refrigerant shunting mode |
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| 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 |
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| CN106678984B (en) * | 2017-02-21 | 2023-01-03 | 珠海格力电器股份有限公司 | Single-row evaporator and air conditioner indoor unit |
| CN107830658A (en) * | 2017-11-22 | 2018-03-23 | 广东美的制冷设备有限公司 | Heat exchanger, indoor set and air conditioner |
| CN108758829A (en) * | 2018-07-27 | 2018-11-06 | 青岛海尔空调器有限总公司 | Wall-hanging air conditioner indoor unit |
| JP6857747B2 (en) * | 2018-09-03 | 2021-04-14 | 広東美的制冷設備有限公司Ｇｄ Ｍｉｄｅａ Ａｉｒ−Ｃｏｎｄｉｔｉｏｎｉｎｇ Ｅｑｕｉｐｍｅｎｔ Ｃｏ．，Ｌｔｄ． | Heat exchanger assembly and air conditioner indoor unit |
| DE112019006833T5 (en) * | 2019-02-05 | 2021-11-11 | Mitsubishi Electric Corporation | air conditioning |
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| CN2303208Y (en) * | 1997-06-02 | 1999-01-06 | 海尔集团公司 | In-door machine three section type evaporation device of air conditioner |
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