WO2016041289A1

WO2016041289A1 - Outdoor air-conditioning unit

Info

Publication number: WO2016041289A1
Application number: PCT/CN2014/095153
Authority: WO
Inventors: 苏运宇; 宋培刚; 张龙洲; 李武
Original assignee: 珠海格力电器股份有限公司
Priority date: 2014-09-17
Filing date: 2014-12-26
Publication date: 2016-03-24
Also published as: CN104197429B; CN104197429A

Abstract

An outdoor air-conditioning unit, comprising a shell (10), a partition board (20) and a heat exchanger (30). The partition board (20) is disposed in the shell (10) and separates the internal space of the shell (10) into a heat exchanging cavity (11) and a compressor cavity (12). The heat exchanger (30) is located in the heat exchanging cavity (11), and comprises a first heat exchanging section (31), a second heat exchanging section (32) and a third heat exchanging section (33) that are continuously disposed. A first angle α is formed between the first heat exchanging section (31) and the second heat exchanging section (32). A second angle β larger than 90 degrees is formed between the second heat exchanging section (32) and the third heat exchanging section (33). The third heat exchanging section (33) is located on the side where the partition board (20) is located.

Description

Air conditioner outdoor unit

The present application claims priority to Chinese Patent Application No. 2014-10476500. filed on Sep. 17, 2014, the entire disclosure of which is incorporated herein by reference.

Technical field

The invention relates to the technical field of air conditioning systems, and more particularly to an outdoor unit of an air conditioner.

Background technique

The heat exchange system in the prior art, especially the side air outlet outdoor unit, mostly adopts a structure in which an L-shaped heat exchanger is combined with an axial flow fan. The axial flow vane is located on the front side of the L-shaped heat exchanger, and adopts an air suction type design, and the partition partitions the heat exchange chamber from the compressor chamber.

Since the heat exchange area of the L-shaped heat exchanger in the prior art is limited, the air conditioner outdoor unit has a problem of low heat exchange efficiency and low overall energy efficiency.

Summary of the invention

The present invention aims to provide an outdoor unit for an air conditioner to solve the problem of low heat exchange efficiency and low overall energy efficiency of the air conditioner outdoor unit in the prior art.

In order to solve the above technical problem, the present invention provides an outdoor unit for an air conditioner, comprising: a casing; a partition plate, wherein the partition plate is disposed in the outer casing to partition the inner space of the outer casing into a heat exchange chamber and a compressor chamber; The device is located in the heat exchange chamber, and the heat exchanger comprises a first heat exchange section, a second heat exchange section and a third heat exchange section which are continuously disposed, and the first heat exchange section and the second heat exchange section have a first angle α, the second heat exchange section and the third heat exchange section have a second angle β, and the second angle β is greater than 90 degrees, and the third heat exchange section is located on a side where the partition is located.

Further, the length of the first heat exchange section in the cross section of the heat exchanger is greater than the length of the third heat exchange section.

Further, a portion of the outer casing for enclosing the compressor chamber has a continuously disposed rear plate, a first side plate and a front plate, and the partition plate and the rear plate, the first side plate and the front plate enclose a compressor chamber, and the partition plate An inclined angle with respect to the rear plate, and an obtuse angle between the partition plate and the rear plate in the compressor cavity; the partition plate has a third angle γ with respect to a vertical plane perpendicular to the rear plate; the second heat exchange section of the heat exchanger Located on the first side of the heat exchange chamber, the first side is in the extending direction of the rear plate, and a heat exchange enhancement region is formed between the third heat exchange section of the heat exchanger and the partition plate.

Further, the first angle α is from 90 degrees to 100 degrees.

Further, the second angle β is from 97 degrees to 110 degrees.

Further, the third angle γ is 5 degrees to 14 degrees.

Further, the second angle β and the third angle γ should satisfy: (β+γ-90)=[15,35] degrees.

Further, the air conditioner outdoor unit further includes a condensing pipe connected to the third heat exchange section of the heat exchanger, the partition plate comprising: a first baffle section; a second baffle section, the first baffle section and the second partition A relief opening for the passage of the condensing duct is formed between the plate segments.

Further, the heat exchanger further comprises a side plate disposed at an end of the third heat exchange section away from the second heat exchange section, the air conditioner outdoor unit further comprising a condensation pipe, a third heat exchange section of the condensation pipe and the heat exchanger Connecting, the partition comprises: a first partition section; a second partition section, the first partition section and the second partition section are respectively connected to the side plates of the heat exchanger.

The separator of the invention is disposed in the outer casing to divide the inner space of the outer casing into a heat exchange chamber and a compressor chamber, and the heat exchanger is located in the heat exchange chamber, and the heat exchanger comprises a first heat exchange section and a second heat exchange continuously arranged a first angle α between the first heat exchange section and the second heat exchange section, and a second angle β between the second heat exchange section and the third heat exchange section, and The two angles β are greater than 90 degrees, and the third heat exchange section is located on the side where the partition is located. Since the heat exchanger has the first heat exchange section, the second heat exchange section and the third heat exchange section which are continuously arranged, the effective heat exchange area of the heat exchanger can be effectively improved under the condition that the space of the heat exchange chamber is constant. Thereby improving the heat exchange efficiency and overall energy efficiency of the outdoor unit of the air conditioner. At the same time, the air conditioner outdoor unit of the present invention has the characteristics of simple structure and low manufacturing cost.

DRAWINGS

The accompanying drawings, which are incorporated in the claims In the drawing:

1 is a schematic view showing the structure of an outdoor unit of an air conditioner in the present invention;

Figure 2 is a schematic front view showing the heat exchanger of the present invention;

Fig. 3 schematically shows a top view of Fig. 2.

Reference numerals in the figure: 10, outer casing; 11, heat exchange chamber; 11a, heat exchange enhancement region; 12, compressor chamber; 13, rear plate; 14, first side plate; 15, front plate; Side plate; 20, partition; 21, first partition section; 23, second partition section; 30, heat exchanger; 31, first heat exchange section; Section; 33, the third heat exchange section; 34, the side plate; 40, the condensation pipe; 50, the axial flow fan blade; 60, the net cover.

detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

The invention provides an outdoor unit for an air conditioner. As shown in FIGS. 1 to 3, the air conditioner outdoor unit includes a casing 10, a partition 20, and a heat exchanger 30. The partition 20 is disposed in the casing 10 to partition the internal space of the casing 10 into a heat exchange chamber 11 and a compressor chamber 12. The heat exchanger 30 is located in the heat exchange chamber 11, and the heat exchanger 30 includes a first heat exchange section 31, a second heat exchange section 32 and a third heat exchange section 33 which are continuously disposed, and the first heat exchange section 31 and the second The heat exchange section 32 has a first angle α between the second heat exchange section 32 and the third heat exchange section 33, and the second angle β is greater than 90 degrees, and the third heat exchange section 33 is located on the side where the partition 20 is located. Since the heat exchanger 30 has the first heat exchange section 31, the second heat exchange section 32 and the third heat exchange section 33 which are continuously disposed, the heat exchanger 30 can be effectively improved in the case where the space size of the heat exchange chamber 11 is constant. The effective heat exchange area, thereby improving the heat exchange efficiency and overall energy efficiency of the outdoor unit of the air conditioner. At the same time, the air conditioner outdoor unit of the present invention has the characteristics of simple structure and low manufacturing cost.

As shown in FIG. 1, the portion of the outer casing 10 for enclosing the compressor chamber 12 has a rear plate 13, a first side plate 14, and a front plate 15, which are continuously disposed, a partition plate 20 and a rear plate 13, and a first side plate 14. And the front plate 15 encloses a compressor chamber 12, the partition plate 20 is disposed obliquely with respect to the rear plate 13, and has an obtuse angle between the partition plate 20 and the rear plate 13 in the compressor chamber 12; the partition plate 20 is opposite to the rear plate The vertical plane of 13 has a third angle γ; the second heat exchange section 32 of the heat exchanger 30 is located on the first side of the heat exchange chamber 11, the first side is in the extending direction of the rear plate 13, and the heat exchanger 30 is A heat exchange enhancement region 11a is formed between the three heat exchange sections 33 and the separator 20. Since the heat exchange enhancement region 11a is formed between the third heat exchange section 33 of the heat exchanger 30 and the separator 20, the amount of ventilation at the position of the third heat exchange section 33 is increased, so that the third heat exchange section 33 is It has high heat exchange efficiency, which improves the energy efficiency of the outdoor unit of the air conditioner. Preferably, the cross section of the heat exchange enhancement region 11a is similar to a triangle. At the same time, the partition 20 of the present invention relatively increases the space of the heat exchange chamber 11, reduces the space of the compressor chamber 12, and allows more space for heat exchange of the heat exchanger 30, thereby effectively improving the air conditioning outdoor. The heat exchange efficiency of the machine.

The length of the first heat exchange section 31 in the cross section of the heat exchanger 30 in the present invention is greater than the length of the third heat exchange section 33 (please refer to Fig. 1). Since the length of the first heat exchange section 31 is greater than the length of the third heat exchange section 33, the manufacturing cost of the heat exchanger is effectively reduced while ensuring sufficient effective heat exchange area. Reduce the quality of the heat exchanger. In the preferred embodiment, since the third heat exchange section 33 is disposed on the side where the partition 20 is located, and the partition 20 has no vent hole directly communicating with the outside, the third heat exchange section 33 is brought close to the front plate. One end of the 15 has a small amount of ventilation, and even if the heat exchange area at this point is large, the effect of effective heat exchange cannot be achieved, and thus it is not necessary to set the length of the third heat exchange section 33 too long. Since the second side plate 16 where the first heat exchange section 31 is located is provided with a vent hole, it is ensured that the first heat exchange section 31 is provided with a sufficient amount of ventilation, thereby setting the first heat exchange section 31. It is long enough to effectively increase the heat exchange area of the heat exchanger 30 and improve the heat exchange efficiency of the outdoor unit of the air conditioner.

In the preferred embodiment shown in FIG. 1, the outer casing 10 further has a second side plate 16 disposed opposite the first side plate 14, and the second side plate 16 is located on the side of the heat exchange chamber 11. The first heat exchange section 31 of the heat exchanger 30 is located at the inner wall of the second side plate 16. The air conditioner outdoor unit further includes an axial flow vane 50, and the axial flow vane 50 is disposed in the heat exchange chamber 11. Since the heat exchanger 30 is uniformly distributed in the heat exchange chamber 11, the air flow rate in the heat exchange chamber 11 is ensured, and the surface wind speed distribution of the heat exchanger 30 is uniform, thereby improving the heat exchanger 30. Thermal efficiency. At the same time, the heat exchanger 30 of the present invention can effectively utilize the space inside the heat exchange chamber 11 and avoid the problem of space waste.

The air conditioner outdoor unit of the present invention further includes a mesh cover 60 which is disposed on the outer casing 10 and located in front of the axial flow vane 50. Preferably, the axial flow vanes 50 are of a suction-type arrangement such that the axial flow vanes 50 are more compact relative to the overall heat exchanger 30. When the air conditioner outdoor unit is in operation, the axial flow vane 50 rotates to form a low pressure zone in the heat exchange chamber 11, so that the air outside the heat exchanger 30 passes through the heat exchanger 30, and acts through the axial flow vane 50 from the grille. 60 is blown out to effect heat exchange of the heat exchanger 30.

It should be noted that the first side of the heat exchange chamber 11 is provided with the second heat exchange section 32 of the heat exchanger 30, the second heat exchange section 32 is located inside the heat exchange chamber 11, and the second side of the heat exchange chamber 11 is as described above. The first side is oppositely disposed, the air outlet is located on the second side of the heat exchange chamber 11, the mesh cover 60 is located on the second side of the heat exchange chamber 11, and the mesh cover 60 is located outside the heat exchange chamber 11.

In a specific embodiment, referring to FIG. 2 and FIG. 3, the air conditioner outdoor unit is a dual fan side air outlet mode. As shown in FIG. 2, eight detection zones a-h are sequentially divided from the top to the bottom in the height direction of the air conditioner outdoor unit on the surface of the heat exchanger 30. As shown in Fig. 3, five detection strips 1-5 are sequentially taken in the longitudinal direction of the heat exchanger 30 on the surface of the heat exchanger 30, thereby obtaining 40 detection points. As shown in Table 1, the distribution of the wind speed on the surface of the heat exchanger 30 in the case of different second angles β and third angles γ.

Table 1. In the case of different second angles β and third angle γ, the surface wind speed of the heat exchanger 30 Distribution.

As shown in Table 1, at the same detection point, when the relationship between the second angle β and the third angle γ should satisfy the relationship of (β + γ - 90) = [15, 35], the surface of the heat exchanger 30 It has a high wind speed and can effectively ensure the heat exchange efficiency of the outdoor unit of the air conditioner.

Preferably, the first angle α is from 90 degrees to 100 degrees. Further, the second angle β is from 97 degrees to 110 degrees. In this range, the space utilization ratio of the heat exchange chamber 11 and the compressor chamber 12 of the air conditioner outdoor unit is high, the space of the compressor chamber 12 is saved, the assembly environment is improved, and the surface wind speed of the heat exchanger 30 can be improved.

Preferably, the third angle γ is 5 degrees to 14 degrees. Further, the second angle β and the third angle γ should satisfy: (β+γ-90)=[15,35] degrees. When γ > 14°, the assembly space of the compressor chamber 12 is reduced, and the surface wind speed of the heat exchanger 30 is no longer increased. When γ < 5°, the heat exchanger 30 has a small air inlet angle and a large resistance loss, and it is difficult to form an effective air flow. Within this assembly angle range, the surface speed of the heat exchanger 30 is high and the heat exchange efficiency is improved.

In a preferred embodiment, the air conditioner outdoor unit further includes a condensing duct 40 connected to the third heat exchange section 33 of the heat exchanger 30, the partition 20 including the first partition section 21 and the second partition section 23, a relief opening for the passage of the condensing duct 40 is formed between the first partition section 21 and the second partition section 23. Since the escaping opening is provided between the two sections of the partition 20, the possibility of installation of the condensing duct 40 is ensured, and the heat exchange chamber 11 is effectively isolated from the compressor chamber 12, and the partition 20 is also better. Adapting the arrangement position of the heat exchanger 30 and the condensing tube 40, thereby improving the compressor chamber 12 and the heat exchange chamber 11 Set the degree of freedom.

In the preferred embodiment shown in FIG. 1, the heat exchanger 30 further includes a side plate 34 disposed at one end of the third heat exchange section 33 away from the second heat exchange section 32, and the air conditioner outdoor unit further includes a condensation tube 40, the condensing duct 40 is connected to the third heat exchange section 33 of the heat exchanger 30, and the partition 20 includes a first partition section 21 and a second partition section 23, a first partition section 21 and a second partition section 23. They are connected to the side plates 34 of the heat exchanger 30, respectively. Preferably, the first separator segment 21 and the side plate 34 have a third angle, the edge plate 34 and the second separator segment 23 have a fourth angle, and the third angle is greater than 90 degrees, the fourth The angle is greater than 90 degrees. Since the first baffle section 21 and the second baffle section 23 are respectively connected to the side plates 34 of the heat exchanger 30, the installation reliability of the baffle 20 is ensured, and the heat exchange chamber 11 is isolated from the compressor chamber 12, Moreover, the partition 20 can be better adapted to the position where the heat exchanger 30 and the condensing duct 40 are disposed, thereby increasing the degree of freedom in setting the compressor chamber 12 and the heat exchange chamber 11.

The heat exchanger 30 in the present invention is a tube-fin heat exchanger or a microchannel heat exchanger.

Preferably, the heat exchanger 30 of the present invention can be applied to a side outlet double fan and a single fan.

The air conditioner outdoor unit of the present invention can significantly improve heat exchange efficiency, improve energy efficiency, make full use of the space of the compressor chamber 12, improve the assembly environment, and improve assembly efficiency.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

An air conditioner outdoor unit, comprising:

Housing (10);

a partition (20), the partition (20) is disposed in the outer casing (10) to divide the inner space of the outer casing (10) into a heat exchange chamber (11) and a compressor chamber (12);

a heat exchanger (30), the heat exchanger (30) is located in the heat exchange chamber (11), the heat exchanger (30) includes a first heat exchange section (31) and a second exchange that are continuously disposed a hot section (32) and a third heat exchange section (33), the first heat exchange section (31) and the second heat exchange section (32) having a first angle α, the second exchange a second angle β between the hot section (32) and the third heat exchange section (33), and the second angle β is greater than 90 degrees, and the third heat exchange section (33) is located at the The side where the partition (20) is located.
The outdoor unit of an air conditioner according to claim 1, wherein a length of said first heat exchange section (31) in said cross section of said heat exchanger (30) is larger than said third heat exchange section (33) )length.
The outdoor unit of an air conditioner according to claim 1, wherein a portion of the outer casing (10) for enclosing the compressor chamber (12) has a rear plate (13) and a first side plate that are continuously disposed (14) and a front plate (15), the partition plate (20) and the rear plate (13), the first side plate (14) and the front plate (15) enclose the compressor chamber (12) the partition (20) is disposed obliquely with respect to the rear plate (13), and the partition (20) and the rear plate (13) in the compressor chamber (12) An obtuse angle; the partition (20) has a third angle γ with respect to a vertical plane perpendicular to the rear plate (13); the second heat exchange section of the heat exchanger (30) (32) a first side of the heat exchange chamber (11), the first side being in the direction of extension of the rear plate (13), the third heat exchange section of the heat exchanger (30) 33) A heat exchange enhancement region (11a) is formed between the separator (20).
The outdoor unit of an air conditioner according to claim 3, wherein said first angle α is from 90 degrees to 100 degrees.
The outdoor unit of an air conditioner according to claim 4, wherein said second angle β is from 97 degrees to 110 degrees.
The outdoor unit of an air conditioner according to claim 5, wherein said third angle γ is 5 degrees to 14 degrees.
The outdoor unit of an air conditioner according to claim 6, wherein said second angle β and The third angle γ should satisfy: (β + γ - 90) = [15, 35] degrees.
The air conditioner outdoor unit according to claim 1, wherein said air conditioner outdoor unit further comprises a condensing duct (40), said condensing duct (40) and said third exchange of said heat exchanger (30) The hot section (33) is connected, and the partition (20) comprises:

First partition section (21);

A second partition section (23), a relief opening for the passage of the condensation tube (40) is formed between the first partition section (21) and the second partition section (23).
The air conditioner outdoor unit according to claim 1, wherein the heat exchanger (30) further comprises a side plate (34), and the side plate (34) is disposed at the third heat exchange section (33) Far from the end of the second heat exchange section (32), the air conditioner outdoor unit further includes a condensing pipe (40), and the third exchange of the condensing pipe (40) and the heat exchanger (30) The hot section (33) is connected, and the partition (20) comprises:

First partition section (21);

A second baffle section (23), the first baffle section (21) and the second baffle section (23) are respectively connected to the side plates (34) of the heat exchanger (30).