CN107763833B - Indoor heat exchanger, air conditioner indoor unit and air conditioner - Google Patents
Indoor heat exchanger, air conditioner indoor unit and air conditioner Download PDFInfo
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- CN107763833B CN107763833B CN201711187100.XA CN201711187100A CN107763833B CN 107763833 B CN107763833 B CN 107763833B CN 201711187100 A CN201711187100 A CN 201711187100A CN 107763833 B CN107763833 B CN 107763833B
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- 239000003507 refrigerant Substances 0.000 claims description 35
- 238000010586 diagram Methods 0.000 description 3
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- 238000009434 installation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The invention discloses an indoor heat exchanger, an air conditioner indoor unit and an air conditioner, wherein the indoor heat exchanger comprises a front heat exchange part and a rear heat exchange part which is arranged in a way of extending backwards from the upper end of the front heat exchange part; the inner side surface of the front heat exchange part is arranged as a cambered surface protruding forward, and the inner side surface of the rear heat exchange part is arranged as a cambered surface protruding backward. According to the technical scheme, the inner side surface of the front heat exchange part is arranged in the front protruding arc surface, and the inner side surface of the rear heat exchange part is arranged in the rear protruding arc surface, so that the indoor heat exchanger can better adapt to the shape of the cross flow fan, the cross flow fan is further close to the indoor heat exchanger, the air flowing through the indoor heat exchanger flows more smoothly, and the air speed flowing through the indoor heat exchanger is higher under the condition that the cross flow fans are in the same power, so that the heat exchange efficiency of the indoor heat exchanger is improved. In addition, the indoor heat exchanger is further close to the cross-flow fan, so that the occupied internal space of the air conditioner indoor unit can be saved.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to an indoor heat exchanger, an air conditioner indoor unit and an air conditioner.
Background
The split air conditioner comprises an air conditioner indoor unit and an air conditioner outdoor unit, wherein the air conditioner indoor unit adopts an arc-shaped indoor heat exchanger, the arc-shaped indoor heat exchanger is well matched with an air duct, the heat exchange performance and the assembly process are greatly improved compared with those of a conventional multi-fold evaporator, and more enterprises adopt the arc-shaped indoor heat exchanger when manufacturing the air conditioner indoor unit.
However, the existing arc-shaped indoor heat exchanger is not fully arc-shaped, namely, the front heat exchange part of the general indoor heat exchanger is arc-shaped, and the rear heat exchange part is straight, so that the defects of low heat exchange efficiency, large noise, large occupied space and the like still exist.
Disclosure of Invention
The invention mainly aims to provide an indoor heat exchanger, which aims to improve the heat exchange efficiency of the indoor heat exchanger.
In order to achieve the above object, the present invention provides an indoor heat exchanger, which includes a front heat exchange portion and a rear heat exchange portion extending rearward from an upper end of the front heat exchange portion;
The inner side of the front heat exchange part is provided with a cambered surface which is convex forward, and the inner side of the rear heat exchange part is provided with a cambered surface which is convex backward.
Preferably, the outer side surface of the front heat exchange part is also arranged in a cambered surface protruding forward, and/or the outer side surface of the rear heat exchange part is also arranged in a cambered surface protruding backward.
Preferably, the radius of curvature of the outer side surface of the front heat exchange part is greater than or equal to the radius of curvature of the inner side surface of the front heat exchange part;
The radius of curvature of the outer side surface of the rear heat exchange part is larger than or equal to that of the inner side surface of the rear heat exchange part.
Preferably, the outer side surface of the rear heat exchange part is arranged in a plane.
Preferably, the indoor heat exchanger further comprises an upper heat exchange part, and the upper heat exchange part is arranged on the outer side surface of the rear heat exchange part.
Preferably, the indoor heat exchanger comprises a plurality of heat exchange tubes, the heat exchange tubes are arranged into a plurality of heat exchange tube rows from outside to inside, and the heat exchange tubes of each heat exchange tube row are arranged in a staggered manner with the heat exchange tubes of the adjacent heat exchange tube rows.
Preferably, the heat exchange tube comprises a first heat exchange sub-tube and a second heat exchange sub-tube, the tube diameter of the first heat exchange sub-tube is larger than that of the second heat exchange sub-tube, the indoor heat exchanger is provided with two refrigerant ports connected with an external refrigerant flow path, and the two refrigerant ports are respectively arranged on the two first heat exchange sub-tubes.
Preferably, the distance between two adjacent first heat exchange sub-tubes is greater than or equal to the distance between two adjacent second heat exchange sub-tubes, and the distance between two adjacent first heat exchange sub-tubes is greater than or equal to the distance between two adjacent first heat exchange sub-tubes and the distance between two adjacent second heat exchange sub-tubes.
The invention also provides an air conditioner indoor unit, which comprises a shell and an indoor heat exchanger, wherein the indoor heat exchanger comprises a front heat exchange part and a rear heat exchange part which is arranged in a way of extending backwards from the upper end of the front heat exchange part;
the inner side surface of the front heat exchange part is provided with a cambered surface which is convex forward, and the inner side surface of the rear heat exchange part is provided with a cambered surface which is convex backward;
The front heat exchange part of the indoor heat exchanger is close to the front panel of the shell, and the rear heat exchange part of the indoor heat exchanger is far away from the front panel of the shell.
The invention also provides an air conditioner, which comprises an air conditioner outdoor unit and an air conditioner indoor unit, wherein the air conditioner indoor unit comprises a shell and an indoor heat exchanger, and the indoor heat exchanger comprises a front heat exchange part and a rear heat exchange part which is arranged in a way of extending backwards from the upper end of the front heat exchange part;
the inner side surface of the front heat exchange part is provided with a cambered surface which is convex forward, and the inner side surface of the rear heat exchange part is provided with a cambered surface which is convex backward;
The front heat exchange part of the indoor heat exchanger is close to the front panel of the shell, and the rear heat exchange part of the indoor heat exchanger is far away from the front panel of the shell.
According to the technical scheme, the inner side surface of the front heat exchange part is provided with the cambered surface which is convex forward, and the inner side surface of the rear heat exchange part is provided with the cambered surface which is convex backward, so that the indoor heat exchanger can better adapt to the shape of the cross flow fan, the cross flow fan is further close to the indoor heat exchanger, the air flowing through the indoor heat exchanger flows more smoothly, and the air speed flowing through the indoor heat exchanger is higher under the condition that the cross flow fans are at the same power, so that the heat exchange efficiency of the indoor heat exchanger is improved. In addition, the indoor heat exchanger is further close to the cross-flow fan, so that the occupied internal space of the air conditioner indoor unit can be saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an indoor heat exchanger and a cross-flow fan according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an indoor heat exchanger and a cross-flow fan according to a second embodiment of the present invention;
fig. 3 is a schematic structural view of an indoor heat exchanger according to a third embodiment of the present invention in a state in which a front heat exchange portion and a rear heat exchange portion are relatively opened;
Fig. 4 is a schematic structural view of an indoor heat exchanger according to a fourth embodiment of the present invention in a state in which a front heat exchange portion and a rear heat exchange portion are relatively opened;
Fig. 5 is a schematic structural diagram of an indoor heat exchanger according to a fifth embodiment of the present invention in a state in which a front heat exchange portion and a rear heat exchange portion are relatively opened.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Indoor heat exchanger | 101 | Fin type |
| 110 | Front heat exchange part | 102 | Heat exchange tube |
| 120 | Rear heat exchange part | 112 | First heat exchange sub-tube |
| 130 | Upper heat exchange part | 122 | Second heat exchange sub-tube |
| 200 | Cross-flow fan |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides an indoor heat exchanger, an air conditioner indoor unit and an air conditioner. The air conditioner comprises an air conditioner outdoor unit and the air conditioner indoor unit. The indoor unit of the air conditioner comprises a shell, an indoor heat exchanger and a cross-flow fan, wherein the indoor heat exchanger and the cross-flow fan are arranged in the shell, an air inlet and an air outlet are formed in the shell, and an air deflector is arranged at the air outlet. Indoor air flow firstly enters the indoor unit of the air conditioner from the air inlet, then enters the cross flow fan through the indoor heat exchanger, finally flows through the air deflector and flows out from the air outlet.
In the first embodiment of the present invention, as shown in fig. 1, the indoor heat exchanger 100 includes a front heat exchanging part 110 and a rear heat exchanging part 120 extending rearward from an upper end of the front heat exchanging part 110. The front heat exchange portion 110 is close to the front panel of the housing, the rear heat exchange portion 120 is far away from the front panel of the housing, and the front heat exchange portion 110 and the rear heat exchange portion 120 are fixedly connected. In order to better adapt to the shape of the cross flow fan 200, the inner side surface of the front heat exchange portion 110 is provided with a cambered surface protruding forward, and the inner side surface of the rear heat exchange portion 120 is provided with a cambered surface protruding backward. The front heat exchange portion 110 and the rear heat exchange portion 120 each include a plurality of fins 101 arranged side by side and a plurality of heat exchange tubes 102 penetrating the fins.
In the cooling condition, the refrigerant flows in from the outermost heat exchange tube 102 at the upper end of the front heat exchange portion 110 or/and the outermost heat exchange tube at the front end of the rear heat exchange portion 120, flows through the front heat exchange portion 110 and the rear heat exchange portion 120 in a plurality of refrigerant flow paths, and then flows out from the innermost heat exchange tube at the front heat exchange portion 110 or/and the innermost heat exchange tube at the rear heat exchange portion 120, so as to exchange heat for the wind flowing through the indoor heat exchanger 100, thereby cooling the indoor air.
According to the technical scheme, the inner side surface of the front heat exchange part 110 is provided with the cambered surface which is convex forward, and the inner side surface of the rear heat exchange part 120 is provided with the cambered surface which is convex backward, so that the indoor heat exchanger 100 can better adapt to the shape of the cross flow fan 200, the cross flow fan 200 is further approached to the shape of the cross flow fan 200, the wind flowing through the indoor heat exchanger 100 flows more smoothly, and the wind speed flowing through the indoor heat exchanger 100 is higher under the condition that the cross flow fans 200 are at the same power, so that the heat exchange efficiency of the indoor heat exchanger 100 is improved. In addition, the indoor heat exchanger 100 is further close to the cross flow fan 200, so that the occupation of the internal space of the indoor unit of the air conditioner can be reduced.
In the solution of the present invention, the outer side surface of the front heat exchange portion 110 may be a cambered surface that is convex forward, and/or the outer side surface of the rear heat exchange portion 120 may be a cambered surface that is convex backward. Preferably, in the first embodiment of the present invention, as shown in fig. 1, the outer side surface of the front heat exchanging part 110 is provided with a cambered surface protruding forward, and the outer side surface of the rear heat exchanging part 120 is provided with a cambered surface protruding backward. By this arrangement, the installation space of the indoor heat exchanger 100 can be saved with respect to the case where the outer surfaces of the front heat exchange portion 110 and the rear heat exchange portion 120 are planar.
In the first embodiment of the present invention, as shown in fig. 1, the radius of curvature of the outer side surface of the front heat exchanging part 110 is greater than or equal to the radius of curvature of the inner side surface of the front heat exchanging part 110, and the radius of curvature of the outer side surface of the rear heat exchanging part 120 is greater than or equal to the radius of curvature of the inner side surface of the rear heat exchanging part 120. The radius of curvature of the outer side surface of the front heat exchange portion 110 is greater than or equal to the radius of curvature of the inner side surface of the front heat exchange portion 110, the radius of curvature of the outer side surface of the rear heat exchange portion 120 is greater than or equal to the radius of curvature of the inner side surface of the rear heat exchange portion 120, and the radius of curvature of the outer side surface of the rear heat exchange portion 120 is smaller than the radius of curvature of the inner side surface of the front heat exchange portion 110, so that the front heat exchange portion 110 and the rear heat exchange portion 120 can be flattened, the front heat exchange portion 110 and the rear heat exchange portion 120 do not protrude outwards too much, thereby facilitating the installation of the indoor heat exchanger 100 and saving the installation space required by the indoor heat exchanger 100.
In the second embodiment of the present invention, as shown in fig. 2, the outer surface of the rear heat exchanging part 120 is disposed in a plane. Because the upper side surface of the rear heat exchange portion 120 is disposed in a plane, the upper side surface of the rear heat exchange portion 120 may be used as a reserved mounting surface for installing additional heat exchange portions. It will be appreciated that the outer side surface of the front heat exchange portion 110 may be disposed in a plane, so that the outer side surface of the front heat exchange portion 110 may also be used as a reserved mounting surface for additionally mounting another heat exchange portion.
In the second embodiment of the present invention, as shown in fig. 2, the indoor heat exchanger 100 further includes an upper heat exchanging part 130, and the upper heat exchanging part 130 is disposed on the outer side surface of the rear heat exchanging part 120. In addition, the upper heat exchanging part 130 is added, so that the heat exchanging efficiency of the indoor heat exchanger 100 can be increased, and the heat exchanging capacity of the indoor heat exchanger can be improved.
In the first to third embodiments of the present invention, as shown in fig. 1 to 3, the indoor heat exchanger 100 includes a plurality of heat exchange tubes 102, and the plurality of heat exchange tubes 102 are arranged into a plurality of heat exchange tube rows from the outside to the inside, and the heat exchange tubes 102 of each heat exchange tube row are offset from the heat exchange tubes 102 of the adjacent heat exchange tube row. The heat exchange tubes 102 of each heat exchange tube row are arranged in a staggered manner with the heat exchange tubes 102 of the adjacent heat exchange tube row, so that wind can flow through the indoor heat exchanger 100 along an S-shaped route, the flow path of the wind in the indoor heat exchanger 100 is prolonged, and the heat exchange effect of the indoor heat exchanger 100 on the wind is enhanced.
In the fourth and fifth embodiments of the present invention, as shown in fig. 4 and 5, the heat exchange tube 102 includes a first heat exchange sub-tube 112 and a second heat exchange sub-tube 122, and the tube diameter of the first heat exchange sub-tube 112 is larger than the tube diameter of the second heat exchange sub-tube 122; the indoor heat exchanger 100 has two refrigerant ports (not shown) for connecting with an external refrigerant flow path, and the two refrigerant ports are respectively disposed on the two first heat exchange sub-tubes 112, so that the heat exchange tubes 102 with larger tube diameters are connected with the external refrigerant flow path, so that when the refrigerant flows into and out of the heat exchange tubes 102 of the indoor heat exchanger 100, the heat exchange area of the refrigerant exchanging heat with air through the tube walls of the heat exchange tubes 102 is increased, and the heat exchange capability of the refrigerant exchanging heat with air through the tube walls of the heat exchange tubes 102 is enhanced.
In the fourth embodiment, further, the air inlet of the housing of the indoor unit of the air conditioner using the indoor heat exchanger 100 is provided at the upper part and is provided corresponding to the top of the indoor heat exchanger 100. In this embodiment, the heat exchange tubes 102 of the indoor heat exchanger 100 are also arranged into a plurality of heat exchange tube rows from the outside to the inside, and the heat exchange tubes 100 of the outermost heat exchange tube row corresponding to the air inlet position are all arranged as the first heat exchange sub-tubes 112. Because the wind speed of the indoor heat exchanger 100 is the largest at the position corresponding to the air inlet, the first heat exchange sub-tube 112 with a large tube diameter is arranged at the position corresponding to the air inlet on the outermost heat exchange tube row, and the wind can be blocked to reduce the wind speed at the position, so that the wind speed of the wind flowing through all parts of the indoor heat exchanger 100 is uniform. In addition, because the wind speed is high here, the refrigerant in the first heat exchange sub-pipe 112 can also promote the heat exchange between the refrigerant and the air through the pipe wall.
In the fourth embodiment, further, the plurality of first heat exchange sub-tubes 112 disposed in the outermost row are serially connected in sequence to form a first heat exchange tube group; a plurality of second heat exchange sub-tubes 122 and first heat exchange sub-tubes 112 arranged in the innermost row form a plurality of second heat exchange tube groups, and after all the second heat exchange sub-tubes 122 in each second heat exchange tube group are sequentially connected in series, the second heat exchange tubes are connected in series with the first heat exchange sub-tubes 112 arranged in the innermost row; a plurality of the second heat exchange tube groups are connected in parallel to the first heat exchange tube group by respective second heat exchange sub-tubes 122; the first heat exchange sub-tube 112 of the first heat exchange tube group, which is far away from the second heat exchange sub-tube 122, is provided with one refrigerant port, and the first heat exchange sub-tube 112 of the second heat exchange tube group, which is far away from the second heat exchange sub-tube 122, is provided with another refrigerant port. The plurality of second heat exchange tube groups are connected in parallel, and a plurality of parallel refrigerant flow paths can be formed after the first heat exchange tube group, so that the refrigerant flowing out of the first heat exchange tube group can be separated and simultaneously flow through the plurality of parallel refrigerant flow paths, the refrigerant with the same cold degree can exchange heat through the heat exchange tubes 102 on the plurality of refrigerant flow paths, the heat exchange efficiency of the refrigerant with the same cold degree is increased, and the heat exchange efficiency of the whole indoor heat exchanger 100 is further increased.
Meanwhile, in the fourth embodiment, preferably, the refrigerant ports include a first refrigerant port and a second refrigerant port, the first heat exchange sub-tube 112 provided with the first refrigerant port is located at the outermost row, and the first heat exchange sub-tube 112 provided with the second refrigerant port is located at the innermost row, so that the first refrigerant port and the second refrigerant port can be conveniently connected with an external refrigerant flow path.
It will be appreciated that the first heat exchange sub-tube 112 disposed in the innermost row may be replaced by a third heat exchange sub-tube, which may have the same or different tube diameter as the first heat exchange sub-tube 112, so long as the tube diameter of the third heat exchange sub-tube is greater than the tube diameter of the second heat exchange sub-tube 122.
In addition, in the fourth and fifth embodiments of the present invention, the distance between two adjacent first heat exchange sub-tubes 112 is greater than or equal to the distance between two adjacent second heat exchange sub-tubes 122, and the distance between two adjacent first heat exchange sub-tubes 112 is greater than or equal to the distance between two adjacent first heat exchange sub-tubes 112 and 122. Because the heat exchange capacity of the first heat exchange sub-tube 112 is greater than that of the second heat exchange sub-tube 122, the distance between two adjacent first heat exchange sub-tubes 112 is greater than or equal to that between two adjacent second heat exchange sub-tubes 122, and the distance between two adjacent first heat exchange sub-tubes 112 is greater than or equal to that between two adjacent first heat exchange sub-tubes 112 and 122, the heat exchange capacity of the first heat exchange sub-tubes 112 can be fully exerted.
In addition, the ratio of the tube diameters of the first heat exchange sub-tube 112 and the second heat exchange sub-tube 122 also has an effect on the heat exchange capacity of the indoor heat exchanger 100. The ratio of the pipe diameters of the first heat exchange sub-pipe 112 to the second heat exchange sub-pipe 122 is too large, so that the refrigerant does not flow smoothly in the heat exchange pipe 102, and the heat exchange effect of the refrigerant is reduced; the ratio of the pipe diameters of the first heat exchange sub-pipe 112 and the second heat exchange sub-pipe 122 is too small, the pipe diameter of the first heat exchange sub-pipe 112 is relatively close to the pipe diameter of the second heat exchange sub-pipe 122, and the first heat exchange sub-pipe 112 cannot increase the heat exchange area, but cannot strengthen the heat exchange. When the pipe diameter ratio of the first heat exchange sub-pipe 112 to the second heat exchange sub-pipe 122 is in the range of 1.1-1.4, the heat exchange capacity of the indoor heat exchanger 100 is optimal. Specifically, the pipe diameter of the second heat exchange sub-pipe 122 may be 5mm, 5.5mm, etc., without limitation.
Specifically, in the fourth embodiment of the present invention, as shown in fig. 4, the distance D8 between the adjacent first heat exchange sub-tubes 112 ranges from 17mm to 21mm, the distance D9 between the adjacent second heat exchange sub-tubes 122 ranges from 15mm to 19mm, and the distance D10 between the adjacent first heat exchange sub-tubes 112 and the adjacent second heat exchange sub-tubes 122 ranges from 15mm to 19mm. In the fifth embodiment of the present invention, as shown in fig. 5, the distance D11 between all adjacent heat exchange tubes 102 ranges from 15mm to 19mm.
Furthermore, in the first embodiment of the present invention, as shown in fig. 1, all heat exchange tubes 102 have the same tube diameter, and the heat exchange tubes 102 include a first outer tube bank positioned outside the front heat exchange portion 110 and a first inner tube bank positioned inside the front heat exchange portion 110; the distance D1 between the adjacent first outer calandria ranges from 17mm to 21mm, the distance D2 between the adjacent first inner calandria ranges from 17mm to 19.5mm, and the distance D3 between the adjacent first outer calandria and the adjacent first inner calandria ranges from 15mm to 19mm. The heat exchange tube 102 further comprises a second outer tube row located outside the rear heat exchange portion 120, and a second inner tube row located inside the rear heat exchange portion 120, wherein a distance D4 between adjacent second outer tube rows ranges from 17mm to 21mm, a distance D5 between adjacent second inner tube rows ranges from 17mm to 21mm, and a distance D6 between adjacent first outer tube rows and first inner tube rows ranges from 15mm to 19mm.
In the second embodiment of the present invention, the arrangement and the number of the heat exchange tubes 102 are the same as those of the first embodiment of the present invention, and will not be described herein.
In the third embodiment of the present invention, the arrangement and the number of the heat exchange tubes 102 of the front heat exchange portion 110 are the same as those of the third embodiment of the present invention, and will not be described again. In the third embodiment of the present invention, as shown in fig. 3, the rear heat exchange portion 120 is provided with two rows of heat exchange tubes from the outside to the inside, each row is provided with 3 heat exchange tubes 102, the tube diameters of the heat exchange tubes 102 are the same, and the distance D7 between all adjacent heat exchange tubes 102 ranges from 15mm to 19mm.
The distance range between the heat exchange tubes 102 is reasonably set according to specific practical situations, so that the heat exchange capacity of the indoor heat exchanger 100 can be effectively improved. It can be appreciated that the spacing between the heat exchange tubes 102 is too large to perform heat exchange well on the wind flowing therethrough to reach the set temperature, and the spacing between the heat exchange tubes 102 is too small to fully exert the heat exchange capability of the heat exchange tubes 102.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (6)
1. An indoor heat exchanger is characterized by comprising a front heat exchange part and a rear heat exchange part which is arranged in a way of extending backwards from the upper end of the front heat exchange part;
the inner side surface of the front heat exchange part is provided with a cambered surface which is convex forward, and the inner side surface of the rear heat exchange part is provided with a cambered surface which is convex backward;
the heat exchange tubes on the indoor heat exchanger are arranged into a plurality of heat exchange tube rows from outside to inside; the indoor heat exchanger is provided with two refrigerant ports used for being connected with an external refrigerant flow path, and the two refrigerant ports are respectively arranged on the two first heat exchange sub-tubes; the distance between two adjacent first heat exchange sub-tubes is larger than the distance between two adjacent second heat exchange sub-tubes, and the distance between two adjacent first heat exchange sub-tubes is larger than the distance between two adjacent first heat exchange sub-tubes and the distance between two adjacent second heat exchange sub-tubes; the heat exchange tubes at the positions corresponding to the air inlets on the outermost heat exchange tube row are all arranged as first heat exchange sub-tubes; a plurality of first heat exchange sub-tubes arranged at the outermost row are sequentially connected in series to form a first heat exchange tube group; the plurality of second heat exchange sub-tubes and the first heat exchange sub-tubes arranged in the innermost row form a plurality of second heat exchange tube groups, and all the second heat exchange sub-tubes in each second heat exchange tube group are sequentially connected in series and then connected in series with the first heat exchange sub-tubes arranged in the innermost row; a plurality of the second heat exchange tube groups are connected in parallel to the first heat exchange tube group through respective second heat exchange sub-tubes;
the outer side surface of the front heat exchange part is provided with a cambered surface which is convex forward, and the outer side surface of the rear heat exchange part is provided with a cambered surface which is convex backward;
The curvature radius of the outer side surface of the front heat exchange part is larger than or equal to that of the inner side surface of the front heat exchange part;
The radius of curvature of the outer side surface of the rear heat exchange part is larger than or equal to that of the inner side surface of the rear heat exchange part.
2. The indoor heat exchanger according to claim 1, wherein the outer side surface of the rear heat exchanging portion is provided in a plane.
3. The indoor heat exchanger according to claim 2, further comprising an upper heat exchanging portion provided on an outer side surface of the rear heat exchanging portion.
4. A heat exchanger according to any one of claims 1 to 3, wherein the heat exchanger comprises a plurality of heat exchange tubes, the plurality of heat exchange tubes being arranged in a plurality of heat exchange tube rows from the outside to the inside, the heat exchange tubes of each heat exchange tube row being offset from the heat exchange tubes of an adjacent heat exchange tube row.
5. An indoor unit of an air conditioner, comprising a housing and the indoor heat exchanger according to any one of claims 1 to 4, wherein a front heat exchanging portion of the indoor heat exchanger is close to a front panel of the housing, and a rear heat exchanging portion of the indoor heat exchanger is far from the front panel of the housing.
6. An air conditioner comprising an air conditioner outdoor unit and the air conditioner indoor unit according to claim 5.
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| CN201711187100.XA CN107763833B (en) | 2017-11-22 | 2017-11-22 | Indoor heat exchanger, air conditioner indoor unit and air conditioner |
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| CN201711187100.XA CN107763833B (en) | 2017-11-22 | 2017-11-22 | Indoor heat exchanger, air conditioner indoor unit and air conditioner |
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| CN107763833A CN107763833A (en) | 2018-03-06 |
| CN107763833B true CN107763833B (en) | 2024-06-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108458406A (en) * | 2018-03-21 | 2018-08-28 | 广东美的制冷设备有限公司 | New type heat exchanger, wall-hanging air conditioner indoor unit and air conditioner |
| CN108931078A (en) * | 2018-06-26 | 2018-12-04 | 广东美的制冷设备有限公司 | New type heat exchanger, air conditioner indoor unit and air conditioner |
| CN112240723B (en) * | 2020-06-01 | 2021-06-22 | 广东美的暖通设备有限公司 | Heat exchange fin and air duct type air conditioner |
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| JPH08313049A (en) * | 1995-05-22 | 1996-11-29 | Toshiba Corp | Air conditioner |
| JPH0914684A (en) * | 1995-06-23 | 1997-01-17 | Daikin Ind Ltd | Air conditioner |
| JP2008057944A (en) * | 2006-09-04 | 2008-03-13 | Matsushita Electric Ind Co Ltd | Finned tube heat exchanger, fins for heat exchanger and heat pump device |
| JP2010096481A (en) * | 2008-10-20 | 2010-04-30 | Toshiba Carrier Corp | Indoor unit for air conditioner |
| CN206222755U (en) * | 2016-11-29 | 2017-06-06 | 美的集团武汉制冷设备有限公司 | The pipeline of evaporator, evaporator and air-conditioner |
| CN207438859U (en) * | 2017-11-22 | 2018-06-01 | 广东美的制冷设备有限公司 | Indoor heat exchanger, air conditioner indoor unit and air conditioner |
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|---|---|
| CN107763833A (en) | 2018-03-06 |
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