CN214581479U - Air conditioner outdoor unit and air conditioner - Google Patents
Air conditioner outdoor unit and air conditioner Download PDFInfo
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- CN214581479U CN214581479U CN202120578502.8U CN202120578502U CN214581479U CN 214581479 U CN214581479 U CN 214581479U CN 202120578502 U CN202120578502 U CN 202120578502U CN 214581479 U CN214581479 U CN 214581479U
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- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000010257 thawing Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 38
- 230000005484 gravity Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an air condensing units and air conditioner, wherein, this air condensing units includes: a heat exchanger; the fan is used for reversely running when the air conditioner is in a preset mode and supplying air to the interior of the outdoor unit; and the air guide grille is positioned between the heat exchanger and the fan and used for guiding the air outlet of the fan to the heat exchanger. The utility model provides an among the prior art outdoor heat exchanger comdenstion water or change the white water problem that can not in time discharge, improve unit heating capacity and reliability.
Description
Technical Field
The utility model relates to an air conditioning technology field particularly, relates to an air condensing units and air conditioner.
Background
When the air conditioner heats in winter, a large amount of condensed water is easy to appear on the surface of the heat exchanger due to low outdoor temperature, and if the condensed water is not discharged in time, a large-area frosting phenomenon is generated on the surface of the heat exchanger, so that heat exchange is seriously hindered, and the heating capacity is obviously reduced. Or in the defrosting stage, the defrosting water on the surface of the heat exchanger cannot be discharged in time, so that the defrosting efficiency is low.
Aiming at the problem that condensed water or defrosting water of an outdoor heat exchanger in the related art cannot be discharged in time, an effective solution is not provided at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air condensing units and air conditioner to solve among the prior art at least outdoor heat exchanger comdenstion water or change the problem that the white water can not in time be discharged.
In order to solve the above technical problem, according to the utility model discloses an aspect of embodiment provides an air condensing units, include: a heat exchanger; the fan is used for reversely running when the air conditioner is in a preset mode and supplying air to the interior of the outdoor unit; and the air guide grille is positioned between the heat exchanger and the fan and used for guiding the air outlet of the fan to the heat exchanger.
Further, the heat exchanger is vertically arranged; the air guide grille is vertically arranged and is positioned on the inner side of the heat exchanger; the fan is arranged on the top of the outdoor unit.
Furthermore, the air guide grille comprises a plurality of grid bars which are parallel to each other and arranged at intervals, and the air outlet of the fan blows towards the heat exchanger through gaps between the grid bars.
Further, the flow guiding profile of the grid bars comprises at least one of the following profiles: convex, concave and planar; when the guide profile is convex, the profile control equation of the guide profile is that y is-a1x2+b1x-c1(ii) a Wherein y is the vertical direction of the flow guide profile, x is the horizontal direction of the flow guide profile, a1、b1、c1Is a parameter, and isA positive number; when the guide profile is a concave surface, the profile control equation of the guide profile is that y is a2x2-b2x+c2(ii) a Wherein, a2、b2、c2Is a parameter and is a positive number.
Furthermore, the grid bars are arranged in a downward inclined mode, and the air outlet of the fan is blown to the heat exchanger in the downward inclined direction after passing through gaps among the grid bars.
Further, the heat exchanger is arranged on one side surface or a plurality of side surfaces of the outdoor unit; when the heat exchangers are arranged on a plurality of sides of the outdoor unit, the air guide grids corresponding to the heat exchangers on all sides are the air guide grids with the same air guide profile or the air guide grids with different air guide profiles.
Further, the distance between the heat exchanger and the air guide grid is smaller than a preset value.
Further, the heat exchanger is a finned heat exchanger.
Further, the preset mode includes at least one of: a heating mode and a defrosting mode.
According to the embodiment of the present invention, there is provided an air conditioner including the outdoor unit of the air conditioner.
The utility model discloses in, provide an outdoor machine, through adjusting fan direction of rotation, realize the reverse air supply of fan, make air supply direction and comdenstion water gravity direction highly uniform, condensate water discharge with higher speed suppresses the heat exchanger surface and frosts, or accelerates defrosting efficiency. Simultaneously, the cooperation wind-guiding grid improves heat exchanger surface amount of wind distribution homogeneity, and further reduces wind flow direction and comdenstion water gravity direction contained angle, and the comdenstion water is discharged with higher speed, further improves the unit heating capacity, has effectively solved outdoor heat exchanger comdenstion water or has changed the white water and can not in time discharge, leads to the poor or problem of changing white inefficiency of heat transfer effect, has improved the reliability of unit simultaneously.
Drawings
Fig. 1 is an alternative schematic structure diagram of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is an alternative structure diagram of the air guiding grille according to the embodiment of the present invention;
fig. 3 is a schematic structural view of another alternative wind guide grille according to an embodiment of the present invention;
fig. 4 is an alternative partial schematic view of a wind-guiding grille according to an embodiment of the present invention;
fig. 5 is an alternative schematic view of a local flow field at the top of a wind turbine according to an embodiment of the present invention;
fig. 6 is an alternative schematic view of a local flow field when the top of the wind turbine is blowing air according to an embodiment of the present invention;
fig. 7 is a comparison graph of the air volume distribution on the surface of the heat exchanger according to the embodiment of the present invention.
Description of reference numerals:
1. a fan; 2. an air guide grid; 3. a heat exchanger; 4. grid bars.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In a preferred embodiment 1 of the present invention, there is provided an outdoor unit of an air conditioner, specifically, fig. 1 shows an optional schematic structural diagram of the outdoor unit, and as shown in fig. 1, the outdoor unit includes:
the fan 1 is used for reversely running when the air conditioner is in a preset mode and supplying air to the interior of the outdoor unit;
and the air guide grid 2 is positioned between the heat exchanger 3 and the fan 1 and used for guiding the air outlet of the fan 1 to the heat exchanger 3.
The heat exchanger 3 is not shown in fig. 1, and is disposed corresponding to the air guide grille, as shown in fig. 1, the air guide grille is a four-sided heat exchanger, and a partial gap is left in the front, so that the heat exchanger is also in a four-sided form, and a partial gap is left in the front, and the heat exchanger corresponds to the air guide grille.
In the above embodiment, an outdoor unit is provided, in which a rotation direction of a fan is adjusted to realize reverse air supply of the fan, so that the air supply direction is highly consistent with a gravity direction of condensed water, the discharge of the condensed water is accelerated, the surface frosting is inhibited, or the defrosting efficiency is accelerated. Simultaneously, the cooperation wind-guiding grid improves heat exchanger surface amount of wind distribution homogeneity, and further reduces wind flow direction and comdenstion water gravity direction contained angle, and the comdenstion water is discharged with higher speed, further improves the unit heating capacity, has effectively solved outdoor heat exchanger comdenstion water or has changed the white water and can not in time discharge, leads to the poor or problem of changing white inefficiency of heat transfer effect, has improved the reliability of unit simultaneously.
As shown in fig. 1, the heat exchanger is arranged vertically; correspondingly, the air guide grille is also vertically arranged and is positioned on the inner side of the heat exchanger; the fan is arranged on the top of the outdoor unit and supplies air from the top.
The preset mode at least comprises one of the following modes: a heating mode and a defrosting mode. When the air conditioning unit enters a heating mode or a defrosting mode, the rotation direction of the fan is adjusted to enable the fan to rotate reversely, and the air outlet direction is changed from original top air outlet to top air inlet. When the air current blows to the heat exchanger at a high speed, the flow direction of the air current is gradually changed through the flow guide molded surface of the built-in air guide grating, finally, the air current obliquely flows downwards into the heat exchanger at the high speed, the condensed water retained by the heat exchanger is blown out, the probability that the heat exchanger frosts due to the fact that a large amount of condensed water is retained on the surface of the heat exchanger during heating is effectively reduced, or the defrosting efficiency is improved during defrosting.
As shown in figure 1, the heat exchanger is a four-surface heat exchanger, and a part of gap is left in the front. Since the heat exchanger is provided corresponding to the air guide grille, the air guide grille is also a four-sided heat exchanger, as shown in fig. 2. The air guide grille comprises a plurality of grid bars which are parallel to each other and arranged at intervals, and the air outlet of the fan blows towards the heat exchanger through gaps between the grid bars. Meanwhile, fig. 2 also shows the airflow flowing direction of the air guide grids, as shown in fig. 2, the grid strips are arranged in a downward inclined mode, and airflow flows out from the top along the grid gaps and blows downwards in an inclined mode to the heat exchanger. The inclination of grid bars is adjustable, and the air outlet direction of the air guide grid is adjusted by adjusting the inclination angle.
Wherein, the water conservancy diversion profile of grid strip includes one of following profile at least: convex, concave and planar; in the convex structure shown in fig. 2, when the air guiding profile is convex, the profile control equation of the air guiding profile is that y is-a1x2+b1x-c1(ii) a Wherein y is the vertical direction of the flow guide profile, x is the horizontal direction of the flow guide profile, a1、b1、c1Is a parameter and is a positive number; preferably, a1∈ (0.017,0.0188)，b1∈(18,20)，c1∈(4467,4937)。
Fig. 3 shows a wind-guiding grille with a concave wind-guiding profile. When the guide profile is a concave surface, the profile control equation of the guide profile is that y is a2x2-b2x+c2(ii) a Wherein, a2、b2、c2Is a parameter and is a positive number. Preferably, a2∈(0.0064,0.007)，b2∈(7.90,8.73)，c2∈(2762,3052)。
Fig. 4 shows a partial schematic view of an air guiding grille. As shown in fig. 4, 3 is a heat exchanger, 4 is a grid bar, and the distance L1 between the grid and the heat exchanger is controlled within 2mm, so that the grid is placed close to the surface of the heat exchanger as much as possible to achieve the optimal flow guiding effect. The interval L2 of each layer of grid bars is controlled to be 10-45mm, and the specific interval is adjusted according to the actual wind speed and wind direction, so that the diversion is achieved, and meanwhile, the influence on the heat exchange effect caused by overlarge flow loss is avoided.
The heat exchanger is arranged on one side surface or a plurality of side surfaces of the outdoor unit; when the heat exchangers are arranged on a plurality of sides of the outdoor unit, the air guide grids corresponding to the heat exchangers on all sides are the air guide grids with the same air guide profile or the air guide grids with different air guide profiles. The overall arrangement range of the air guide grating is determined according to the shape of the heat exchanger actually adopted by the unit, and whether the inner surface of the heat exchanger adopts the grating with the same flow guide profile is further determined by combining the actual condensed water condition and the wind field simulation result. If the air distribution difference of the heat exchangers along the left side and the right side is large due to the fact that the flow channels inside the unit are complex and asymmetrical, grids with different flow guide molded surfaces need to be arranged on two sides of the heat exchangers, and finally the air distribution on the surface of the whole heat exchanger is relatively uniform, and the problems that water drops cannot be effectively blown out due to the fact that the air speed is too low or the included angle between the air direction and the gravity direction of condensed water is too large locally and the heat exchange is affected due to frosting caused by the accumulated condensed water do not exist.
In the above embodiment, the heat exchanger is a fin type heat exchanger, but of course, other types of heat exchangers can be realized, and for the fin type heat exchanger, the above scheme can remove the condensed water between fins better, and the effect of removing the condensed water is better.
The top outlet air and reverse top inlet air flow fields under normal conditions are simulated by simulation, as shown in fig. 5. Fig. 5 shows a local flow field when air is discharged from the top, and since the fan is arranged above the unit, the air flow is sent to the outside and enters the heat exchanger almost along the horizontal direction, and the flow speed is low, so that the condensed water cannot be discharged. Fig. 6 shows that when the fan rotates reversely and air enters from the top, a local flow field is formed, airflow is guided out obliquely downwards at a high speed through the flow guide grids, and an included angle between the wind direction and the gravity direction of liquid drops is small, so that condensed water can be discharged conveniently.
Fig. 7 shows a comparison graph of the air volume distribution on the surface of the heat exchanger, when the fan supplies air reversely from the top, the problem of uneven air volume distribution as the top air outlet still exists, and the air volume distribution uniformity can be obviously improved by adding the built-in grating, so that the heat exchange effect is improved.
Example 2
In a preferred embodiment 2 of the present invention, there is provided an air conditioner including the outdoor unit of the air conditioner of the above embodiment 1.
In the above embodiment, the reverse air supply of the fan is realized by adjusting the rotation direction of the fan, so that the air supply direction is highly consistent with the gravity direction of the condensed water, the discharge of the condensed water is accelerated, the surface frosting is inhibited, or the defrosting efficiency is accelerated. Simultaneously, the cooperation wind-guiding grid improves heat exchanger surface amount of wind distribution homogeneity, and further reduces wind flow direction and comdenstion water gravity direction contained angle, and the comdenstion water is discharged with higher speed, further improves the unit heating capacity, has effectively solved outdoor heat exchanger comdenstion water or has changed the white water and can not in time discharge, leads to the poor or problem of changing white inefficiency of heat transfer effect, has improved the reliability of unit simultaneously.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (10)
1. An outdoor unit of an air conditioner, comprising:
a heat exchanger (3);
the fan (1) is used for reversely running when the air conditioner is in a preset mode and supplying air to the interior of the outdoor unit;
and the air guide grid (2) is positioned between the heat exchanger (3) and the fan (1) and used for guiding the outlet air of the fan (1) to the heat exchanger (3).
2. The outdoor unit of claim 1, wherein,
the heat exchanger (3) is vertically arranged;
the air guide grille (2) is vertically arranged and is positioned on the inner side of the heat exchanger (3);
the fan (1) is positioned at the top of the outdoor unit.
3. The outdoor unit of claim 2, wherein the air guide grille (2) comprises a plurality of grille bars (4) spaced apart from each other in parallel, and the outlet air of the fan (1) is blown toward the heat exchanger (3) through gaps between the grille bars (4).
4. Outdoor unit of air conditioner according to claim 3, characterized in that the air guiding profile of the grille strips (4) comprises at least one of the following profiles: convex, concave and planar;
when the flow guide profile is a convex surface, the profile control equation of the flow guide profile is that y is-a1x2+b1x-c1(ii) a Wherein y is the vertical direction of the flow guide profile, x is the horizontal direction of the flow guide profile, a1、b1、c1Is a parameter and is a positive number;
when the flow guide profile is a concave surface, the profile control equation of the flow guide profile is that y is a2x2-b2x+c2(ii) a Wherein, a2、b2、c2Is a parameter and is a positive number.
5. The outdoor unit of claim 3, wherein the grills (4) are arranged to be inclined downward, and the outlet air of the fan (1) passes through the gaps between the grills (4) and then is blown toward the heat exchanger (3) in a downward inclined direction.
6. The outdoor unit of claim 4, wherein the heat exchanger (3) is provided at one side or more sides of the outdoor unit; when the heat exchangers (3) are arranged on a plurality of sides of the outdoor unit, the air guide grids (2) corresponding to the heat exchangers (3) on each side are air guide grids (2) with the same air guide profile or air guide grids (2) with different air guide profiles.
7. The outdoor unit of claim 1, wherein a distance between the heat exchanger (3) and the air guide grill (2) is less than a predetermined value.
8. The outdoor unit of any one of claims 1 to 7, wherein the heat exchanger (3) is a fin type heat exchanger.
9. The outdoor unit of claim 1, wherein the preset mode comprises at least one of: a heating mode and a defrosting mode.
10. An air conditioner characterized by comprising the outdoor unit of an air conditioner according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120578502.8U CN214581479U (en) | 2021-03-22 | 2021-03-22 | Air conditioner outdoor unit and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120578502.8U CN214581479U (en) | 2021-03-22 | 2021-03-22 | Air conditioner outdoor unit and air conditioner |
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| Publication Number | Publication Date |
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| CN214581479U true CN214581479U (en) | 2021-11-02 |
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| CN202120578502.8U Active CN214581479U (en) | 2021-03-22 | 2021-03-22 | Air conditioner outdoor unit and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902313A (en) * | 2021-03-22 | 2021-06-04 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit, air conditioner and control method of air conditioner |
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- 2021-03-22 CN CN202120578502.8U patent/CN214581479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902313A (en) * | 2021-03-22 | 2021-06-04 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit, air conditioner and control method of air conditioner |
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