CN207438859U - Indoor heat exchanger, air conditioner indoor unit and air conditioner - Google Patents

Abstract

The utility model 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 extending backward from the upper end of the front heat exchange part; The inner surface of the rear heat exchanging part is arranged as a convex arc surface toward the front, and the inner surface of the rear heat exchange part is arranged as an arc surface convex toward the rear. The technical scheme of the utility model allows the inner surface of the front heat exchange part to be arranged on a forwardly convex arc surface, and the inner surface of the rear heat exchange part to be arranged on a backwardly convex arc surface, so that the indoor heat exchanger can better adapt to the cross flow The shape of the fan is closer to the cross-flow fan, so that the wind flowing through the indoor heat exchanger can flow more smoothly. When the cross-flow fan is at the same power, the wind speed flowing through the indoor heat exchanger is higher, thereby improving the indoor heat exchanger. heat transfer efficiency of the heater. In addition, the indoor heat exchanger is closer to the cross-flow fan, which can save the internal space occupied by the indoor unit of the air conditioner.

Description

Indoor heat exchanger, air conditioner indoor unit and air conditioner

technical field

The utility model relates to the field of air conditioners, in particular to an indoor heat exchanger, an air conditioner indoor unit and an air conditioner.

Background technique

The split type air conditioner includes an air conditioner indoor unit and an air conditioner outdoor unit. The air conditioner indoor unit uses a curved indoor heat exchanger. The curved indoor heat exchanger cooperates well with the air duct. The heat transfer performance and assembly process are better than the conventional multi-fold evaporator. With great improvement, more and more enterprises adopt arc-shaped indoor heat exchangers when manufacturing air-conditioning indoor units.

However, the current arc-shaped indoor heat exchanger is not fully arc-shaped, that is, the front heat exchange part of the general indoor heat exchanger is arc-shaped, and the rear heat exchange part is straight, which still has low heat exchange efficiency, loud noise, Occupies a lot of space and other defects.

Utility model content

The main purpose of the utility model is to propose an indoor heat exchanger, aiming at improving the heat exchange efficiency of the indoor heat exchanger.

In order to achieve the above purpose, the utility model proposes an indoor heat exchanger, which includes a front heat exchange part and a rear heat exchange part extending backward from the upper end of the front heat exchange part;

The inner surface of the front heat exchanging part is arranged as an arc convex toward the front, and the inner surface of the rear heat exchanging part is arranged on an arc convex toward the rear.

Preferably, the outer surface of the front heat exchange part is also arranged on a forwardly convex arc surface, and/or the outer surface of the rear heat exchange part is also arranged on a rearwardly convex arc surface.

Preferably, the curvature radius of the outer surface of the front heat exchange part is greater than or equal to the curvature radius of the inner surface of the front heat exchange part;

The curvature radius of the outer surface of the rear heat exchange part is greater than or equal to the curvature radius of the inner surface of the rear heat exchange part.

Preferably, the outer surface of the rear heat exchange part is arranged in a plane.

Preferably, the indoor heat exchanger further includes an upper heat exchange part, and the upper heat exchange part is arranged on the outer surface of the rear heat exchange part.

Preferably, the indoor heat exchanger includes a plurality of heat exchange tubes, and the plurality of 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 connected to the corresponding The heat exchange tubes adjacent to the heat exchange tube row are arranged in a misaligned position.

Preferably, the heat exchange tube includes a first heat exchange sub-tube and a second heat exchange sub-tube, the diameter of the first heat exchange sub-tube is larger than the diameter of the second heat exchange sub-tube, and the indoor The heat exchanger has two refrigerant ports for connecting with the 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 same distance. The distance adjacent to the first heat exchange sub-tube and the second heat exchange sub-tube.

The utility model also proposes an air-conditioning indoor unit, which includes a shell and an indoor heat exchanger, and the indoor heat exchanger includes a front heat exchange part and a rear heat exchange part extending backward from the upper end of the front heat exchange part;

The inner surface of the front heat exchange part is arranged on a forwardly convex arc surface, and the inner surface of the rear heat exchange part is arranged on a backward convex arc surface;

The front heat exchange part of the indoor heat exchanger is close to the front panel of the casing, and the rear heat exchange part of the indoor heat exchanger is away from the front panel of the casing.

The utility model also proposes an air conditioner, including an air conditioner outdoor unit and an air conditioner indoor unit, the air conditioner indoor unit includes a casing and an indoor heat exchanger, and the indoor heat exchanger includes a front heat exchange part and a heat exchange unit from the front The upper end of the part extends backwards to the rear heat exchange part;

The inner surface of the front heat exchange part is arranged on a forwardly convex arc surface, and the inner surface of the rear heat exchange part is arranged on a backward convex arc surface;

The front heat exchange part of the indoor heat exchanger is close to the front panel of the casing, and the rear heat exchange part of the indoor heat exchanger is away from the front panel of the casing.

The technical scheme of the utility model allows the inner surface of the front heat exchange part to be arranged on a forward-convex arc surface, and the inner surface of the rear heat exchange part to be arranged on a backward-convex arc surface, so that the indoor heat exchanger can be better Adapting to the shape of the cross-flow fan, getting closer to the cross-flow fan makes the wind flowing through the indoor heat exchanger flow more smoothly. When the cross-flow fan is at the same power, the wind speed flowing through the indoor heat exchanger is faster Large, thereby improving the heat exchange efficiency of the indoor heat exchanger. In addition, the indoor heat exchanger is closer to the cross-flow fan, which can save the internal space occupied by the indoor unit of the air conditioner.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is a schematic structural diagram of the cooperation between the indoor heat exchanger and the cross-flow fan in the first embodiment of the present invention;

Fig. 2 is a schematic structural diagram of the cooperation between the indoor heat exchanger and the cross-flow fan in the second embodiment of the present invention;

Fig. 3 is a structural schematic diagram of the indoor heat exchanger according to the third embodiment of the present invention when the front heat exchange part and the rear heat exchange part are relatively open;

Fig. 4 is a schematic structural view of the indoor heat exchanger according to the fourth embodiment of the present invention when the front heat exchange part and the rear heat exchange part are relatively open;

Fig. 5 is a structural schematic diagram of the indoor heat exchanger according to the fifth embodiment of the present invention, when the front heat exchange part and the rear heat exchange part are relatively open.

Explanation of reference numbers:

label name label name 100 indoor heat exchanger 101 fins 110 Front Heat Exchanger 102 heat exchange tube 120 Rear heat exchange unit 112 The first heat exchange tube 130 Upper heat exchange part 122 Second heat exchange tube 200 cross flow fan

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present utility model, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the relative positional relationship, movement conditions, etc. between the components shown in the figure below are changed, if the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. Implying their relative importance or implying the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

The utility model provides an indoor heat exchanger, an air conditioner indoor unit and an air conditioner. The air conditioner includes an air conditioner outdoor unit and the air conditioner indoor unit. The air-conditioning indoor unit includes a casing, an indoor heat exchanger and a cross-flow fan arranged in the casing, an air inlet and an air outlet are arranged on the casing, and an air deflector is arranged on the air outlet. The indoor air flow first enters the interior of the air conditioner indoor unit through the air inlet, then enters the cross-flow fan through the indoor heat exchanger, and finally flows through the air guide plate and flows out from the air outlet.

In the first embodiment of the present utility model, as shown in FIG. 1 , the indoor heat exchanger 100 includes a front heat exchange part 110 and a rear heat exchange part 120 extending backward from the upper end of the front heat exchange part 110 . Wherein, the front heat exchange part 110 is close to the front panel of the housing, the rear heat exchange part 120 is away from the front panel of the housing, and the front heat exchange part 110 and the rear heat exchange part 120 are connected and fixed. In order to better adapt to the shape of the cross-flow fan 200 , further closer to the cross-flow fan 200 , the inner surface of the front heat exchange part 110 is arranged in a forwardly convex arc surface, and the inner surface of the rear heat exchange part 120 is arranged in a curved shape facing forward. Kyphosis setting. Both the front heat exchange part 110 and the rear heat exchange part 120 include a plurality of fins 101 arranged side by side and a plurality of heat exchange tubes 102 passing through the fins.

In the cooling working condition, the refrigerant flows in from the outermost row at the upper end of the front heat exchange part 110 or/and the outermost row of heat exchange tubes 102 at the front end of the rear heat exchange part 120, and flows through the front part through a plurality of refrigerant flow paths. The heat exchange part 110 and the rear heat exchange part 120 then flow out from the innermost row of the front heat exchange part 110 or/and the innermost row of heat exchange tubes of the rear heat exchange part 120, thereby convectively flowing through the indoor heat exchange Heat exchange with the wind from the device 100 to cool the indoor air.

The technical scheme of the utility model allows the inner surface of the front heat exchange part 110 to be arranged on a forwardly convex arc surface, and the inner surface of the rear heat exchange part 120 to be arranged on a backwardly convex arc surface, so that the indoor heat exchanger 100 It can better adapt to the shape of the cross-flow fan 200 and get closer to the cross-flow fan 200, so that the wind flowing through the indoor heat exchanger 100 can flow more smoothly. The wind speed of the indoor heat exchanger 100 is higher, thereby improving the heat exchange efficiency of the indoor heat exchanger 100 . In addition, the indoor heat exchanger 100 is closer to the cross-flow fan 200, which can reduce the internal space occupied by the indoor unit of the air conditioner.

In the technical solution of the present utility model, the outer surface of the front heat exchange part 110 may also be arranged in a forwardly convex arc, and/or the outer surface of the rear heat exchange part 120 may also be in a backward convex shape. Arc settings. Preferably, in the first embodiment of the present utility model, as shown in FIG. 1 , the outer surface of the front heat exchange part 110 is arranged in a forwardly convex arc surface, and the outer surface of the rear heat exchange part 120 is It is set on a curved surface convex toward the back. With such an arrangement, compared with the case where the outer surfaces of the front heat exchange part 110 and the rear heat exchange part 120 are planar, the installation space of the indoor heat exchanger 100 can be saved.

In the first embodiment of the present utility model, as shown in FIG. 1 , the radius of curvature of the outer surface of the front heat exchange portion 110 is greater than or equal to the radius of curvature of the inner surface of the front heat exchange portion 110 , and the rear surface The radius of curvature of the outer surface of the heat exchange part 120 is greater than or equal to the radius of curvature of the inner surface of the rear heat exchange part 120 . The curvature radius of the outer surface of the front heat exchange part 110 is greater than or equal to the curvature radius of the inner surface of the front heat exchange part 110, and the curvature radius of the outer surface of the rear heat exchange part 120 is greater than or equal to the curvature radius of the rear heat exchange part 120. The radius of curvature of the inner surface of the heat exchange part 120 is smaller than the radius of curvature of the inner surface of the front heat exchange part 110 relative to the radius of curvature of the outer surface of the front heat exchange part 110 and the outer surface of the rear heat exchange part 120 If the radius of curvature of the side surface is smaller than the radius of curvature of the inner surface of the rear heat exchange part 120, the front heat exchange part 110 and the rear heat exchange part 120 can be flattened so that the front heat exchange part 110 and the rear heat exchange part 120 do not move toward The outer protrusion is very strong, so that the indoor heat exchanger 100 is conveniently installed, and the installation space required by the indoor heat exchanger 100 is saved.

In the second embodiment of the present utility model, as shown in FIG. 2 , the outer surface of the rear heat exchange part 120 is arranged on a plane. Since the upper side of the rear heat exchange part 120 is arranged in a plane, the upper side of the rear heat exchange part 120 can be used as a reserved installation surface for adding another heat exchange part. It can be understood that, the outer surface of the front heat exchange part 110 can also be arranged as a plane, so that the outer surface of the front heat exchange part 110 can also be used as a reserved installation surface for adding and installing another heat exchange part.

In the second embodiment of the present utility model, as shown in FIG. 2 , the indoor heat exchanger 100 further includes an upper heat exchange part 130 , and the upper heat exchange part 130 is arranged outside the rear heat exchange part 120 on the side. In addition, adding the upper heat exchange part 130 can increase the heat exchange efficiency of the indoor heat exchanger 100 and improve its heat exchange capacity.

In the first to third embodiments of the present utility model, as shown in Figures 1-3, the indoor heat exchanger 100 includes a plurality of heat exchange tubes 102, and the plurality of heat exchange tubes 102 are arranged from outside to inside It is formed into a plurality of heat exchange tube rows, and the heat exchange tubes 102 of each heat exchange tube row and the heat exchange tubes 102 of the adjacent heat exchange tube rows are arranged in a dislocation manner. The heat exchange tubes 102 of each heat exchange tube row are misplaced with the heat exchange tubes 102 of the adjacent heat exchange tube row, so that the wind can flow through the indoor heat exchanger 100 along an "S"-shaped route, extending the The flow path of the wind in the indoor heat exchanger 100 enhances the heat exchange effect of the indoor heat exchanger 100 on the wind.

In the fourth and fifth embodiments of the present invention, as shown in Figures 4 and 5, the heat exchange tube 102 includes a first heat exchange sub-tube 112 and a second heat exchange sub-tube 122, the first heat exchange tube The pipe diameter of the thermal sub-tube 112 is larger than the pipe diameter of the second heat exchange sub-pipe 122; the indoor heat exchanger 100 has two refrigerant ports (not shown) for connecting with the external refrigerant flow path. The two refrigerant ports are separately arranged on the two first heat exchange sub-tubes 112. In this way, the heat exchange tubes 102 with larger diameters are used to connect with the external refrigerant flow path, and the heat exchange can be performed when the refrigerant flows into and out of the room. When the heat exchange tube 102 of the device 100 is used, the heat exchange area for the refrigerant to exchange heat with the air through the tube wall of the heat exchange tube 102 is increased, and the ability of the refrigerant to exchange heat with the air through the tube wall of the heat exchange tube 102 is enhanced.

In the fourth embodiment, further, the air inlet of the housing of the air conditioner indoor unit to which the indoor heat exchanger 100 is applied is arranged at the upper part and corresponding to the top of the indoor heat exchanger 100 . In this embodiment, the plurality of heat exchange tubes 102 on the indoor heat exchanger 100 are also arranged into a plurality of heat exchange tube rows from the outside to the inside, and the outermost heat exchange tube row corresponds to the air inlet. The heat exchange tubes 100 at the positions are all set as the first heat exchange sub-tubes 112 . Since the position of the indoor heat exchanger 100 corresponding to the air inlet has the highest wind speed, the first heat exchange sub-tube 112 with a large diameter is arranged on the outermost heat exchange tube row corresponding to the air inlet, which can block the wind and reduce the wind speed. Reduce the effect of the wind speed here, so that the wind speed of the wind flowing through all parts of the indoor heat exchanger 100 is uniform. In addition, due to the high wind speed here, the refrigerant in the first heat exchange sub-tube 112 here can also be promoted to exchange heat with the air through the tube wall.

In the fourth embodiment, further, a plurality of first heat exchange sub-tubes 112 arranged in the outermost row are sequentially connected in series to form a first heat exchange tube group; a plurality of second heat exchange sub-tubes 122 and arranged in the innermost The row of first heat exchange sub-tubes 112 forms 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 serially connected in sequence, they are connected with the The first heat exchange sub-tubes 112 in the inner row are connected in series; a plurality of the second heat exchange tube groups are connected in parallel to the first heat exchange tube group through their respective second heat exchange sub-tubes 122; The first heat exchange sub-tube 112 far away from the second heat exchange tube group in the tube group is provided with a refrigerant port, and the first heat exchange sub-tube 122 in the second heat exchange tube group is far away from the second heat exchange tube group. Another refrigerant port is provided on the sub-tube for heat exchange 112 . The parallel connection of multiple second heat exchange tube groups can form multiple parallel refrigerant flow paths after the first heat exchange tube group, so that the refrigerant flowing out of the first heat exchange tube group can be separated and flow through multiple channels at the same time There are two parallel refrigerant flow paths, so that the refrigerant of the same coldness can exchange heat through the heat exchange tubes 102 on multiple refrigerant flow paths at the same time, which increases the heat exchange efficiency of the refrigerant with the same coldness, and further increases the heat transfer of the entire room. The heat exchange efficiency of the device 100.

Meanwhile, in the fourth embodiment, preferably, the refrigerant port includes a first refrigerant port and a second refrigerant port, the first heat exchange sub-tubes 112 provided with the first refrigerant port are located in the outermost row, and The first heat exchange sub-tube 112 with the second refrigerant port is located in the innermost row, so that the first refrigerant port and the second refrigerant port can be easily connected to the external refrigerant flow path.

It can be understood that the first heat exchange sub-tubes 112 arranged in the innermost row can be replaced by third heat exchange sub-tubes, and the diameter of the third heat exchange sub-tubes can be the same as that of the first heat exchange sub-tubes 112 The diameters are the same or different, as long as the diameter of the third sub-tube for heat exchange is greater than the diameter of the second sub-tube for heat exchange 122 .

In addition, in the fourth and fifth embodiments of the present utility model, 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 second heat exchange sub-tubes 122 The distance between the first heat exchange sub-tubes 112 is greater than or equal to the distance between the adjacent first heat exchange sub-tubes 112 and the second heat exchange sub-tubes 122 . Since the heat exchange capacity of the first heat exchange sub-tubes 112 is greater than that of the second heat exchange sub-tubes 122, the distance between two adjacent first heat exchange sub-tubes 112 is greater than or equal to that of two adjacent second heat exchange sub-tubes. 122, the distance between two adjacent first heat exchange sub-tubes 112 is greater than or equal to the distance between the adjacent first heat exchange sub-tubes 112 and the second heat exchange sub-tubes 122, which can give full play to the first The heat exchange capacity of the heat exchange sub-tube 112.

In addition, the ratio of the diameters of the first heat exchange sub-pipe 112 and the second heat exchange sub-pipe 122 also affects the heat exchange capacity of the indoor heat exchanger 100 . If the diameter ratio between the first heat exchange sub-tube 112 and the second heat exchange sub-tube 122 is too large, the flow of the refrigerant in the heat exchange tube 102 will be blocked and the heat exchange effect of the refrigerant will be reduced; The diameter ratio between the heat exchange sub-tube 112 and the second heat exchange sub-tube 122 is too small, the diameter of the first heat exchange sub-tube 112 is relatively close to the diameter of the second heat exchange sub-tube 122, and the first The heat exchange sub-tubes 112 cannot increase the heat exchange area, but cannot strengthen the heat exchange. When the diameter ratio of the first heat exchange sub-tube 112 to the second heat exchange sub-tube 122 is in the range of 1.1-1.4, the heat exchange capacity of the indoor heat exchanger 100 is the best. Specifically, the diameter of the second heat exchange sub-tube 122 may be 5 mm, 5.5 mm, etc., and is not limited.

Specifically, in the fourth embodiment of the present utility model, as shown in FIG. 4 , the distance D8 between the adjacent first heat exchange sub-tubes 112 ranges from 17 mm to 21 mm, and the adjacent second sub-tubes 112 The distance D9 between the heat exchange sub-tubes 122 ranges from 15mm to 19mm, and the distance D10 between the adjacent first heat exchange subtubes 112 and the second heat exchange subtubes 122 ranges from 15mm to 19mm . In the fifth embodiment of the present utility model, as shown in FIG. 5 , the distance D11 between all adjacent heat exchange tubes 102 is in the range of 15mm˜19mm.

In addition, in the first embodiment of the present utility model, as shown in FIG. 1 , all the heat exchange tubes 102 have the same tube diameter, and the heat exchange tubes 102 include the first outer tube located on the outer row of the front heat exchange part 110 . The row of tubes, and the first inner row of tubes located in the inner row of the front heat exchange part 110; the distance D1 between the adjacent first outer row of tubes ranges from 17mm to 21mm, and the distance between adjacent to the first inner row The distance D2 between the tubes ranges from 17 mm to 19.5 mm, and the distance D3 between the adjacent first outer tubes and the first inner tubes ranges from 15 mm to 19 mm. The heat exchange tube 102 also includes a second outer row of tubes located on the outer row of the rear heat exchange part 120, and a second inner row of tubes located on the inner row of the rear heat exchange part 120, adjacent to the second outer row of tubes. The distance D4 between the row pipes ranges from 17mm to 21mm, the distance D5 between the adjacent second inner row pipes ranges from 17mm to 21mm, and the adjacent first outer row pipe and the second row pipe The distance D6 between the inner tubes ranges from 15mm to 19mm.

In the second embodiment of the present invention, the arrangement and quantity of the heat exchange tubes 102 are the same as those of the first embodiment of the present invention, and will not be repeated here.

In the third embodiment of the present invention, the arrangement and quantity of the heat exchange tubes 102 of the front heat exchange part 110 are the same as those of the third embodiment of the present invention, and will not be repeated here. In the third embodiment of the present utility model, as shown in FIG. 3 , the rear heat exchange part 120 is provided with two rows of heat exchange tubes from the outside to the inside, and each row is provided with three heat exchange tubes 102 . The tube diameters are the same, and the distance D7 between all adjacent heat exchange tubes 102 is in the range of 15 mm to 19 mm.

In the above embodiments, the distance range between the heat exchange tubes 102 is reasonably set according to specific actual conditions, which can effectively improve the heat exchange capacity of the indoor heat exchanger 100 . It can be understood that if the distance between the heat exchange tubes 102 is too large, the heat exchange of the passing wind cannot be performed well to reach the set temperature; ability.

The above is only a preferred embodiment of the present utility model, and does not therefore limit the scope of the patent of the present utility model. Under the inventive concept of the present utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, or Direct/indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims (10)

1. a kind of indoor heat exchanger, which is characterized in that backwards extend including preceding heat exchanging part and from the upper end of the preceding heat exchanging part and set The rear heat exchanging part put；

The medial surface of the preceding heat exchanging part is in the cambered surface setting towards lordosis, and the medial surface of the rear heat exchanging part is in cambered surface convex backwards It sets.

2. indoor heat exchanger as described in claim 1, which is characterized in that the lateral surface of the preceding heat exchanging part is in the arc towards lordosis The lateral surface of heat exchanging part is set in cambered surface convex backwards after face sets and/or is described.

3. indoor heat exchanger as claimed in claim 2, which is characterized in that the radius of curvature of the lateral surface of the preceding heat exchanging part is big In or equal to the preceding heat exchanging part medial surface radius of curvature；

The radius of curvature of the lateral surface of heat exchanging part is greater than or equal to the radius of curvature of the medial surface of the rear heat exchanging part after described.

4. indoor heat exchanger as described in claim 1, which is characterized in that the lateral surface of heat exchanging part is set in plane after described.

5. indoor heat exchanger as claimed in claim 4, which is characterized in that the indoor heat exchanger further includes heat exchanging part, institute Heat exchanging part is stated to be arranged on the lateral surface of the rear heat exchanging part.

6. such as claim 1-5 any one of them indoor heat exchangers, which is characterized in that the indoor heat exchanger includes a plurality of change Heat pipe, a plurality of heat exchanger tube are arranged in multiple heat exchanger tubes rows inwardly from outer, the heat exchanger tube of each heat exchanger tube row with it is adjacent The heat exchanger tube of the heat exchanger tube row shifts to install.

7. indoor heat exchanger as claimed in claim 6, which is characterized in that the heat exchanger tube includes the first heat exchange pipe and second Heat exchange son pipe, the caliber of the sub- pipe of first heat exchange are more than the caliber of the described second sub- pipe of heat exchange, and the indoor heat exchanger has To two refrigerant mouths being connected with external refrigerant flow, which sets up separately on the two sub- pipes of first heat exchange.

8. indoor heat exchanger as claimed in claim 7, which is characterized in that the spacing of the sub- pipe of adjacent two first heat exchange is more than Or the spacing equal to the adjacent two sub- pipes of second heat exchange, the spacing of the sub- pipe of adjacent two first heat exchange is more than or equal to adjacent The spacing of the first heat exchange pipe and the described second sub- pipe of heat exchange.

9. a kind of air conditioner indoor unit, which is characterized in that including the indoor heat exchange described in shell and claim 1 to 8 any one Device, close to the front panel of the shell, the rear heat exchanging part of the indoor heat exchanger is separate for the preceding heat exchanging part of the indoor heat exchanger The front panel of the shell.

10. a kind of air conditioner, which is characterized in that including the air conditioner indoor unit described in air-conditioner outdoor unit and claim 9.