CN107560006B - Heat exchanger and air conditioner - Google Patents
Heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN107560006B CN107560006B CN201710807152.6A CN201710807152A CN107560006B CN 107560006 B CN107560006 B CN 107560006B CN 201710807152 A CN201710807152 A CN 201710807152A CN 107560006 B CN107560006 B CN 107560006B
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- heat exchanger
- heat exchange
- bending
- straight
- exchange tubes
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- 238000005452 bending Methods 0.000 claims abstract description 37
- 238000007664 blowing Methods 0.000 claims abstract description 37
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The application discloses a heat exchanger and an air conditioner. The heat exchanger is provided with a first side close to the wind source and a second side far away from the wind source, and comprises a non-straight blowing part, and a bending part bending towards the direction of the first side is arranged on at least the non-straight blowing part. According to the heat exchanger provided by the application, the bending part bending towards the direction close to the wind source is arranged on the non-direct-blowing part, so that the distance between the non-direct-blowing part and the wind source is reduced, the wind resistance of each area of the heat exchanger is balanced, the uniform flow effect is achieved, and the heat exchange efficiency of the heat exchanger is improved.
Description
Technical Field
The application relates to the technical field of heat exchange devices, in particular to a heat exchanger and an air conditioner.
Background
The air conditioning outdoor unit is an important component of the air conditioning system, and the heat exchange efficiency of the heat exchanger in the air conditioning outdoor unit is related to the refrigerating and heating capacities of the whole air conditioning system. In order to improve the heat exchange area of the heat exchanger, as shown in fig. 1, the heat exchanger in the existing outdoor unit is generally L-shaped, and the heat exchange capability of the heat exchanger is increased through a bending structure, but the heat exchanger is straight in the vertical direction, so that the speed distribution of the outlet/inlet flow speed of the fan on the surface of the heat exchanger is very uneven, and meanwhile, the heat exchange area is limited by the structural space, so that the heat exchange capability of the heat exchanger cannot meet the requirement.
Disclosure of Invention
Accordingly, an object of the present application is to provide a heat exchanger capable of effectively improving heat exchange efficiency.
In order to achieve the above purpose, on one hand, the present application adopts the following technical scheme:
a heat exchanger having a first side proximate to a wind source and a second side facing away from the wind source, the heat exchanger comprising a non-blowthrough portion, at least the non-blowthrough portion being provided with a bend to the first side.
Preferably, the bending part is arranged at the edge position of the non-straight blowing part.
Preferably, the heat exchanger comprises at least one row of heat exchange tubes, the row of heat exchange tubes comprises a plurality of heat exchange tubes arranged side by side, the heat exchange tubes are arranged in the fins in a penetrating mode, and at least one end of each heat exchange tube is bent to form the non-direct blowing portion.
Preferably, the non-straight portion includes a straight portion, the heat exchange tubes located in the straight portion are arranged side by side in a first direction, and the bent portion is provided at least one of both ends of the first direction.
Preferably, the bent portion and the straight portion form an obtuse angle therebetween.
Preferably, in a plane perpendicular to the axis of the heat exchange tube in the bending portion, a line connecting the axes of the heat exchange tubes in the bending portion is a straight line, a broken line, an arc line, or a combination of the straight line and the arc line.
Preferably, the non-straight portion is bent in a direction of the first side at least one end of the heat exchange tube.
Preferably, the heat exchanger further comprises a blow-through part connected with the non-blow-through part, and the edge of the blow-through part is provided with the bending part.
Preferably, the bending part arranged on the non-straight blowing part is smoothly connected with the bending part arranged on the straight blowing part.
On the other hand, the application adopts the following technical scheme:
an air conditioner comprising a heat exchanger as described above.
Preferably, the air conditioner comprises an outdoor unit, the heat exchanger is arranged in a shell of the outdoor unit, the wind source is a fan arranged on one side of the heat exchanger, and the bending part of the heat exchanger bends towards one side where the fan is located.
Preferably, the bending part is formed at an upper edge of the heat exchanger.
Preferably, a fixing part is arranged on the shell, and the upper edge and the lower edge of the heat exchanger are fixedly connected with the fixing part.
According to the heat exchanger provided by the application, the bending part bending towards the direction close to the wind source is arranged on the non-direct-blowing part, so that the distance between the non-direct-blowing part and the wind source is reduced, the wind resistance of each area of the heat exchanger is balanced, the uniform flow effect is achieved, and the heat exchange efficiency of the heat exchanger is improved.
Drawings
The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application with reference to the accompanying drawings, in which:
FIG. 1 is a top view showing an internal structure of an outdoor unit according to the prior art;
fig. 2 shows a perspective view of a heat exchanger provided by the present application;
FIG. 3 shows a schematic view of a heat exchanger of one configuration provided by the present application in a plane perpendicular to the axis of its heat exchange tubes;
FIG. 4 shows a schematic view of a heat exchanger of another construction provided by the present application in a plane perpendicular to the axis of its heat exchange tubes;
FIG. 5 shows a top view of the heat exchanger and fan combination provided by the present application;
FIG. 6 shows a longitudinal cross-sectional view of a heat exchanger provided by the present application mated with a fan;
FIG. 7 shows a schematic view of the heat exchanger provided by the application mated with a housing;
fig. 8 shows a comparison diagram of the air volume of a conventional heat exchanger and a heat exchanger provided by the application.
In the figure, 1', heat exchanger;
1. a heat exchanger; 11. a non-direct blowing portion; 111. a straight portion; 112. a bending part; 12. a direct blowing part; 121. a straight portion; 122. a bending part; 13. a heat exchange tube; 14. a fin; 2. a blower; 31. an upper fixing part; 32. and a lower fixing part.
Detailed Description
The present application is described below based on examples, but the present application is not limited to only these examples. In the following detailed description of the present application, certain specific details are set forth in detail. The present application will be fully understood by those skilled in the art without the details described herein. Well-known methods, procedures, flows, and components have not been described in detail so as not to obscure the nature of the application.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
The application provides a heat exchanger, which is applied to an air conditioner outdoor unit for example to describe various embodiments of the heat exchanger, and of course, it is understood that the heat exchanger provided by the application can be applied to other devices and equipment which need heat exchange.
As shown in fig. 2, the heat exchanger 1 has a first side close to a wind source and a second side far away from the wind source, for example, as shown in fig. 5, the wind source is a fan 2 in an outdoor unit of an air conditioner, a flow direction of driving wind by the fan 2 is shown by a small arrow in fig. 5, and then the first side of the heat exchanger 1 close to the fan 2 is an air outlet side, and the second side far away from the fan 2 is an air inlet side. The heat exchanger 1 comprises a non-straight blowing portion 11 and a straight blowing portion 12, the windward side of which portion 12 is substantially perpendicular to the main flow direction of the fan 2, the non-straight blowing portion 11, i.e. the air flow, having to be deflected one or more times to be able to blow towards the non-straight blowing portion 11, the main flow direction of the fan 2, i.e. the direction indicated by the large arrow in fig. 5.
The non-blowthrough part 11 may be formed by bending both ends or one end of the blowthrough part 12, for example. In the embodiment shown in fig. 2, the heat exchanger 1 includes a plurality of heat exchange tubes 13 arranged side by side, the heat exchange tubes 13 are arranged in the fins 14 in a penetrating manner, the heat exchanger 1 is bent at two ends of the heat exchange tubes 13 to form a non-straight blowing portion 11, and a portion of the heat exchanger 1 which is not bent in the middle is formed as a straight blowing portion 12, so that the heat exchanger 1 is n-shaped in a top view, the fan 2 is arranged at an open side of the n-shaped heat exchanger 1, and a main flow direction of the fan 2 is perpendicular to the straight blowing portion 12, as shown in fig. 5. Preferably, the non-straight portion 11 is bent in a direction approaching the blower 2.
Because wind generated by the fan 2 can blow to the non-direct blowing part 11 after one or more times of deflection, the area where the non-direct blowing part 11 is located is a high wind resistance area of the heat exchanger 1, and in order to reduce the distance between the non-direct blowing part 11 and the wind inlet area of the fan 2, preferably, a bending part 112 bending towards the wind outlet side direction of the heat exchanger 1, namely bending towards the direction close to the fan 2, is arranged on the non-direct blowing part 11, so that the distance between the non-direct blowing part 11 and the fan 2 is reduced, wind resistance of each area of the heat exchanger is balanced, a uniform flow effect is achieved, and the heat exchange efficiency of the heat exchanger 1 is improved. It is understood that the bends described herein may comprise a generally described curvature having an arc.
Preferably, to facilitate the arrangement of the bending portion 112, the bending portion 112 is arranged at an edge position of the non-straight blowing portion 11, for example, in the embodiment shown in fig. 2 and 3, the bending portion 112 is arranged at an upper edge of the non-straight blowing portion 11. In this way, as shown in fig. 6, the area with larger deflection angle of the air flow at the upper part of the non-straight blowing part 11 is arranged closer to the fan 2, thereby reducing the energy loss of the air flow and improving the heat exchange effect of the heat exchanger 1.
Of course, it will be appreciated that the heat exchange tubes 13 may be arranged in one row as shown in fig. 3, or in a plurality of rows, depending on the specific heat exchange requirements, for example, in two rows as shown in fig. 4.
Further specifically, as shown in fig. 2 and 3, the non-straight portion 11 includes straight portions 111 in which the heat exchange tubes 13 are each disposed side by side in one direction, for example, in a first direction, preferably a vertical direction, in the outdoor unit, and bent portions 112 are provided on at least one of both ends of the straight portions 111 in the vertical direction, and in order to facilitate installation of the heat exchanger 1 in the outdoor unit, the bent portions 112 are preferably provided at upper edge positions (described later) of the straight portions 111.
Preferably, the bending direction of the bending portion 112 may be adjusted according to the wind resistance, for example, as shown in fig. 3, an obtuse angle α is formed between the bending portion 112 and the straight portion 111, and the preferable range of the obtuse angle α is 110 ° to 130 °, so that a larger heat exchange area can be obtained while the distance between the bending portion 112 and the fan 2 is reduced, and the overall wind speed distribution is more uniform.
Preferably, in a plane perpendicular to the axis of the heat exchange tube 13 in the bent portion 112, referring to fig. 3, the line L connecting the axes of the heat exchange tubes 13 in the bent portion 112 may be a straight line, a broken line, an arc line, or a combination of a straight line and an arc line as shown in fig. 3, that is, an arc line at a position where the bent portion 112 intersects the straight portion 111, and other positions are straight lines. Therefore, a better heat exchange effect can be obtained on the basis of a reasonable arrangement structure.
In a specific embodiment, a plurality of fins 14 are disposed in the heat exchanger 1 at intervals, as shown in fig. 3, each fin 14 has an inverted L shape, the heat exchange tubes sequentially pass through the plurality of fins 14, and the heat exchange tubes 13 are disposed side by side in sequence along the extending direction of the fins 14 on the same fin 14.
It is further preferred that the above-mentioned bent portion 122 is also provided on the straight portion 12 of the heat exchanger 1, for example, in the embodiment shown in fig. 2, the straight portion 12 also includes the straight portion 121 and the bent portion 122 of the upper edge of the straight portion 121, so that the upper portion of the straight portion 12 is provided closer to the fan 2, which can further homogenize the air flow and increase the heat exchange area.
In order to avoid generating the dead angle of air flow, preferably, as shown in fig. 2, the bent portion 112 disposed on the non-straight blowing portion 11 is smoothly connected with the bent portion 122 disposed on the straight blowing portion 12, so that the whole heat exchanger 1 is formed into a cover-shaped structure with a smooth surface, so that the heat exchanger 1 is in a curved structure in three dimensions, the whole heat exchange area of the heat exchanger 1 in a limited area is greatly increased, the heat exchange capability of the heat exchanger 1 is obviously improved, and the size requirement of the air conditioner outdoor unit can be reduced to a certain extent. In addition, the heat exchanger 1 is formed as a necked-down structure facing the air outlet, the shape of the necked-down structure preferably being adapted to the air outlet.
Compared with the existing heat exchanger, the heat exchange area of the heat exchanger provided by the application can be increased by 50%; the heat exchange capacity is improved by 20 to 39 percent under the conditions of the same-temperature copper pipe, the same heat exchange coefficient and the same air quantity, and as shown in figure 8, the simulated air quantity at each rotating speed is improved by about 30 to 40 percent
Furthermore, the application also provides an air conditioner, wherein the heat exchanger in the air conditioner adopts the heat exchanger structure, and particularly the outdoor unit in the air conditioner adopts the heat exchanger as an outdoor heat exchanger, so that the heat exchange efficiency of the outdoor unit is improved.
Preferably, since the bending structure is disposed at the edge of the heat exchanger 1, the original gravity center position of the heat exchanger 1 is changed, and in order to achieve stable and reliable support of the heat exchanger 1 in the outdoor unit, it is preferable that, as shown in fig. 7, fixing portions are disposed in the casing, the upper and lower edges of the heat exchanger 1 are fixedly connected with the fixing portions, the fixing portions include, for example, an upper fixing portion 31 located at the upper portion and a lower fixing portion 32 located at the lower portion, the bending portions 112 and 122 are connected with the upper fixing portion 31 of the casing, the straight portions 111 and 121 are connected with the lower fixing portion 32, preferably, the bottom wall of the casing forms the lower fixing portion 32, and the straight portions 111 and 121 are disposed perpendicular to the bottom wall.
It is easy to understand by those skilled in the art that the above preferred embodiments can be freely combined and overlapped without conflict.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the application, are intended to be included within the scope of the appended claims.
Claims (11)
1. A heat exchanger, characterized in that the heat exchanger is provided with a first side close to a wind source and a second side far away from the wind source, the heat exchanger comprises a non-direct blowing part, and at least the non-direct blowing part is provided with a bending part bending towards the first side;
the heat exchanger also comprises a direct blowing part connected with the non-direct blowing part, wherein the non-direct blowing part is formed by bending two ends or one end of the direct blowing part, the bending part faces the air outlet side direction, and the area where the non-direct blowing part is positioned is a high wind resistance area of the heat exchanger; the non-direct blowing part comprises a straight part, heat exchange pipes in the straight part are arranged side by side along a first direction, and at least one of two ends of the first direction is provided with the bending part; an obtuse angle is formed between the bending part and the straight part.
2. The heat exchanger of claim 1, wherein the bend is provided at an edge position of the non-blowthrough portion.
3. The heat exchanger of claim 1, wherein the heat exchanger comprises at least one row of heat exchange tubes, the row of heat exchange tubes comprising a plurality of heat exchange tubes disposed side-by-side, the heat exchange tubes being disposed in a fin, the heat exchanger being folded at least one end of the heat exchange tubes to form the non-blowthrough portion.
4. A heat exchanger according to claim 3, wherein the line connecting the axes of the heat exchange tubes in the bent portion is a straight line, a broken line, an arc line or a combination of straight line and arc line in a plane perpendicular to the axes of the heat exchange tubes in the bent portion.
5. A heat exchanger according to claim 3, wherein the non-blowthrough portion is bent in a direction of the first side at least one end of the heat exchange tube.
6. The heat exchanger according to any one of claims 1 to 5, wherein the edge of the blowthrough portion is provided with the bent portion.
7. The heat exchanger of claim 6, wherein the bend provided on the non-blowthrough portion is smoothly connected to the bend provided on the blowthrough portion.
8. An air conditioner comprising a heat exchanger according to any one of claims 1 to 7.
9. The air conditioner of claim 8, wherein the air conditioner comprises an outdoor unit, the heat exchanger is arranged in a housing of the outdoor unit, the wind source is a fan arranged at one side of the heat exchanger, and the bending part of the heat exchanger bends towards the side where the fan is located.
10. The air conditioner of claim 9, wherein the bent portion is formed at an upper edge of the heat exchanger.
11. The air conditioner of claim 10, wherein the housing is provided with a fixing portion, and upper and lower edges of the heat exchanger are fixedly connected with the fixing portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807152.6A CN107560006B (en) | 2017-09-08 | 2017-09-08 | Heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807152.6A CN107560006B (en) | 2017-09-08 | 2017-09-08 | Heat exchanger and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107560006A CN107560006A (en) | 2018-01-09 |
| CN107560006B true CN107560006B (en) | 2023-10-27 |
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ID=60979759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710807152.6A Active CN107560006B (en) | 2017-09-08 | 2017-09-08 | Heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107560006B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460686A (en) * | 2020-11-23 | 2021-03-09 | 珠海格力电器股份有限公司 | Wall-mounted corner type air conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0611288A (en) * | 1992-06-26 | 1994-01-21 | Daikin Ind Ltd | Heat exchanger |
| CN1115378A (en) * | 1994-02-25 | 1996-01-24 | 东芝株式会社 | Heat exchanger and plate fin therefor |
| KR19980028862U (en) * | 1996-11-25 | 1998-08-05 | 배순훈 | Condenser of Air Conditioner |
| JP2001241876A (en) * | 2000-03-01 | 2001-09-07 | Hitachi Ltd | Heat exchanging and air conditioner comprising it |
| JP2004108647A (en) * | 2002-09-18 | 2004-04-08 | Mitsubishi Electric Corp | Fin tube type heat exchanger and refrigeration cycle air conditioner using it |
| JP2015175567A (en) * | 2014-03-17 | 2015-10-05 | 株式会社富士通ゼネラル | Ceiling-embedded air conditioner |
| CN207279843U (en) * | 2017-09-08 | 2018-04-27 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioner |
-
2017
- 2017-09-08 CN CN201710807152.6A patent/CN107560006B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0611288A (en) * | 1992-06-26 | 1994-01-21 | Daikin Ind Ltd | Heat exchanger |
| CN1115378A (en) * | 1994-02-25 | 1996-01-24 | 东芝株式会社 | Heat exchanger and plate fin therefor |
| KR19980028862U (en) * | 1996-11-25 | 1998-08-05 | 배순훈 | Condenser of Air Conditioner |
| JP2001241876A (en) * | 2000-03-01 | 2001-09-07 | Hitachi Ltd | Heat exchanging and air conditioner comprising it |
| JP2004108647A (en) * | 2002-09-18 | 2004-04-08 | Mitsubishi Electric Corp | Fin tube type heat exchanger and refrigeration cycle air conditioner using it |
| JP2015175567A (en) * | 2014-03-17 | 2015-10-05 | 株式会社富士通ゼネラル | Ceiling-embedded air conditioner |
| CN207279843U (en) * | 2017-09-08 | 2018-04-27 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107560006A (en) | 2018-01-09 |
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