CN202792283U - Outdoor unit of refrigeration device - Google Patents

Abstract

The utility model discloses an outdoor unit of a refrigeration device. It includes a casing (20), an outdoor heat exchanger (30) installed in the casing (20) and vertically arranged upright, a fan main body (41) installed on the top of the casing (20), and a fan motor ( 42) and the outdoor fan (40) of trumpet-shaped part (43). The outdoor heat exchanger (30) is configured as a bent type heat exchanger formed across all sides of the casing (20). The fan motor (42) is connected to the bottom of the fan main body (41), and the fan motor (42) is supported by the casing (20) through the support member (70), so that the lower end of the fan motor (42) is located in the outdoor heat exchange area. Below the upper end of the device (30), the upper end is located above the upper end of the outdoor heat exchanger (30) and the lower end of the horn-shaped part (43) is located between the upper and lower ends of the fan motor (42). It can reduce the air supply resistance and reduce the air volume of the fan.

Description

Outdoor unit of refrigeration plant

technical field

The utility model relates to an outdoor unit of a refrigeration device, in particular to an installation structure of an outdoor fan.

Background technique

So far, in the outdoor unit of the refrigeration device, as disclosed in Patent Document 1, in addition to the compressor, an outdoor heat exchanger and an outdoor fan are also installed in the casing.

The casing of the outdoor unit has a rectangular shape in a plan view, and air inlets are formed on the left and right sides and the back. The outdoor heat exchanger is arranged along the air inlet and is in the shape of a "U" in a top view. The outdoor fan is arranged on the upper part of the casing.

When the outdoor fan is driven, the outdoor air is sucked into the casing from the air inlet, and the refrigerant and the outdoor air exchange heat in the outdoor heat exchanger. Afterwards, the outdoor air is blown out of the casing through the outdoor fan.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2009-127991

Contents of the invention

－Technical problems to be solved by the utility model－

The outdoor fan in the outdoor unit includes a fan body and a fan motor located below the fan body. The fan main body is arranged on a cylindrical portion protruding from the top plate of the casing, and the fan motor is arranged above an upper end of the outdoor heat exchanger. Therefore, since the motor for the fan is located below the fan body, the air passage between the outdoor heat exchanger and the fan body increases, and the air blowing resistance increases. As a result, there are problems such as an increase in the air volume of the fan.

The utility model is completed in view of the above-mentioned points, and its purpose is to reduce the air supply resistance to reduce the air volume of the fan.

－Technical solutions to solve technical problems－

The utility model of the first aspect is an outdoor unit of a refrigeration device, including a casing 20, an outdoor heat exchanger 30, and an outdoor fan 40. The outdoor heat exchanger 30 is installed in the casing 20 so as to stand upright in the vertical direction. State setting, the outdoor fan 40 is installed on the upper part of the casing 20 and has a fan main body 41 , a fan motor 42 and a horn-shaped part 43 . The outdoor heat exchanger 30 is configured as a bent heat exchanger spanning the entire side of the cabinet 20, the fan motor 42 is connected to the lower part of the fan main body 41, and the fan motor 42 is supported The component 70 is supported by the casing 20 so that the lower end of the fan motor 42 is located below the upper end of the outdoor heat exchanger 30 , and the upper end of the fan motor 42 is located at the upper end of the outdoor heat exchanger 30 . Below the upper end, and the lower end of the horn-shaped member 43 is located between the upper and lower ends of the fan motor 42 .

In the utility model of the above-mentioned first aspect, because the lower end of the fan motor 42 is lower than the upper end of the outdoor heat exchanger 30, the fan main body 41 is close to the outdoor heat exchanger 30, and the fan main body 41 exchanges heat with the outdoor heat exchanger. The air path between the devices 30 is shortened. As a result, air can flow smoothly.

The utility model of the second aspect is as follows. In the utility model of the first aspect, the support member 70 includes horizontal mounting portions 72 on both sides and a motor fixing portion 73 in the center. The mounting parts 72 on both sides of the level are located above the upper end of the outdoor heat exchanger 30 and are mounted on the casing 20; the motor fixing part 73 in the central part is connected to the mounting part 72 and is recessed so that the mounting part 72 Further down, it is located below the upper end of the outdoor heat exchanger 30 .

In the above-mentioned utility model of the second aspect, since the motor fixing portion 73 located below the upper end of the outdoor heat exchanger 30 is formed at the central portion of the supporting member 70 of the outdoor fan 40, it is possible to use a simple structure. The fan motor 42 is arranged at a lower position than in the prior art.

The utility model of the third aspect is as follows. In the utility model of the first or second aspect, near a part of the upper end of the outdoor heat exchanger 30, an electrical and electronic device located above the outdoor heat exchanger 30 is provided. Component unit 60 .

In the utility model of the third aspect described above, since the electrical and electronic component unit 60 is arranged above the outdoor heat exchanger 30, the space around the outdoor fan 40 can be effectively used.

－Effects of utility model－

In the present utility model, the outdoor fan 40 is supported by the casing 20 so that the lower end of the fan motor 42 is located below the upper end of the outdoor heat exchanger 30 , and the fan motor 42 The upper end is located above the upper end of the outdoor heat exchanger 30 . Therefore, according to the present invention, the air passage between the outdoor heat exchanger 30 and the fan main body 41 can be shortened, thereby reducing the ventilation resistance. As a result, the air volume of the fan of the outdoor fan 40 can be reduced.

Since the fan motor 42 is located at the center of the horn 43, ventilation resistance can be reduced.

According to the utility model of the second aspect, since the supporting member 70 includes the motor fixing portion 73 that is recessed further downward than the mounting portions 72 on both sides, the resistance of the air flow can be reduced, and compared with the prior art, the motor fixing portion 73 can be reduced. The position of the fan motor 42 is lower.

According to the utility model of the third aspect, since the electrical and electronic component unit 60 is arranged above the outdoor heat exchanger 30 , the useless space around the outdoor fan 40 can be effectively utilized.

In particular, since the outdoor fan 40 can also reliably suck air from the upper end portion of the outdoor heat exchanger 30 located below the electrical and electronic component unit 60 , it is possible to suppress a decrease in heat exchange efficiency of the outdoor heat exchanger 30 .

Description of drawings

Fig. 1 is a perspective view showing an outdoor unit in a first embodiment.

Fig. 2 is a perspective view showing the outdoor unit with a part of the cabinet removed in the first embodiment.

Fig. 3 is a perspective view showing the outdoor unit in the first embodiment after a part of the cabinet and the electrical and electronic component unit are deleted.

Fig. 4 is a cross-sectional view showing the outdoor unit in the first embodiment, the outdoor unit whose upper half is a cross-sectional view.

5 is a perspective view showing a fan motor and a fan stay in the first embodiment.

Fig. 6 is a plan view showing the outdoor unit in the first embodiment with the top plate omitted.

Fig. 7 is a perspective view showing an outdoor unit in a second embodiment.

Fig. 8 is a perspective view showing the outdoor unit with a part of the cabinet removed in the second embodiment.

Fig. 9 is a perspective view showing the outdoor unit in the second embodiment after a part of the cabinet and the electrical and electronic component unit are deleted.

Fig. 10 is a plan view showing the outdoor unit with the top plate omitted in the second embodiment.

-Symbol Description-

10-outdoor unit; 20-casing; 25-suction port; 26-air outlet; 30-outdoor heat exchanger; 3a-opening; 40-outdoor fan; 41-main body of fan; 42-motor for fan; 43- Horn-shaped part; 50-compression mechanism; 60-electrical and electronic component unit; 70-support for fan; 72-installation part; 73-motor fixing part.

Detailed ways

Below, the embodiment of the present utility model is described in detail with reference to the accompanying drawings.

(the first embodiment of the utility model)

As shown in FIGS. 1 to 4 , the outdoor unit 10 in the first embodiment is used in a refrigeration device, that is, an air conditioner. The indoor units are connected to form a vapor compression refrigeration cycle, but are not shown in the figure.

The outdoor unit 10 is, for example, installed on the roof of a building, etc., and includes a casing 20 , an outdoor heat exchanger 30 , a fan mechanism 4A, and a compression mechanism 50 .

The casing 20 is rectangular in plan view and includes four pillars 21 , a bottom frame 22 , side panels 23 and a top panel 24 .

The four pillars 21 are arranged at four corners, and the bottom frame 22 is fixed on the lower parts of the four pillars 21 .

The side panels 23 include: an upper side panel 23a forming the four sides of the upper half of the cabinet 20, a front side panel 23b forming the front left half of the lower half of the cabinet 20, and forming the lower half of the cabinet 20. Part of the left side (first side) is the left side panel 23c of the front half. On the sides of the casing 20, that is, on the front right half of the lower half, the right side (second side) of the lower half, the back of the lower half, and the left side of the lower half (the second side) One side) rear half is formed with suction port 25.

The top plate 24 is fixed on the upper end of the column 21 . An air outlet 26 is formed on the top plate 24 , and the top plate 24 includes a grille 24 a covering the air outlet 26 .

The outdoor heat exchanger 30 is a fin-and-tube heat exchanger configured to exchange heat between outdoor air and refrigerant. Furthermore, the outdoor heat exchanger 30 is installed vertically, and is configured as a bent type heat exchanger spanning all sides of the cabinet 20 . A predetermined opening 3 a is formed between both side end portions of the outdoor heat exchanger 30 across the front left corner portion of the casing 20 . That is, the front side panel 23b and the left side panel 23c are provided on the cabinet 20 corresponding to the opening 3a of the outdoor heat exchanger 30 .

The compression mechanism 50, the oil-gas separator 51 and the gas-liquid separator 52 are mounted on the bottom frame 22, and the compression mechanism 50 is composed of two compressors 5a, 5b.

The casing 20 is located between the lower space 2a for installing the outdoor heat exchanger 30 and the upper space 2b for installing the outdoor fan 40, and stays 20a, 20b, 20c, 20d extending in the horizontal direction are installed. on all sides.

The outdoor fan 4A includes two outdoor fans 40, each of which includes a fan main body 41, a fan motor 42, and a horn-shaped member 43, and the outdoor fan 4A is mounted on the stays 20a, 20c.

An electrical and electronic component unit 60 is installed in the casing 20 , and electrical and electronic components for controlling the compression mechanism 50 and the like are installed in the electrical and electronic component unit 60 . The electrical and electronic component unit 60 is arranged above the front face of the outdoor heat exchanger 30 , between the upper side panel 23 a and the trumpet 43 of the outdoor fan 40 and very near the upper end of the outdoor heat exchanger 30 .

Next, the structure of the outdoor fan 40 will be described in detail.

As shown in FIGS. 4 and 5 , the outdoor fan 40 is mounted on a fan stay 70 that is a support member through a mounting plate 71 . The fan stay 70 is supported by the front stay 20a and the rear stay 20c of the cabinet 20 located at the upper end of the outdoor heat exchanger 30 .

The fan stay 70 is formed in a “well” shape, and includes mounting portions 72 at both sides and a motor fixing portion 73 at the center. The mounting portion 72 is formed horizontally and is U-shaped in a plan view, and is mounted on the front stay 20 a and the rear stay 20 c of the casing 20 . That is to say, the installation part 72 is installed above the outdoor heat exchanger 30 . The motor fixing portion 73 includes an inclined portion 74 that inclines toward the center from the mounting portion 72 following the mounting portion 72 and a horizontal portion 75 that is horizontal following the inclined portion 74 . A motor hole 75 a for inserting the fan motor 42 is formed in the horizontal portion 75 .

Air holes 76 are formed on both sides of the fan stay 70 , and the air holes 76 reach the horizontal portion 75 from the mounting portion 72 through the inclined portion 74 .

A central hole 71 a through which the fan motor 42 passes is formed on the mounting plate 71 , and the mounting plate 71 is mounted on a central portion of the fan stay 70 . The fan motor 42 and the mounting plate 71 are fixed together at the center of the fan stay 70 .

In particular, the central portion of the motor fixing portion 73 is recessed lower than the installation portion 72 , and is located below the upper end of the outdoor heat exchanger 30 . The fan motor 42 is supported by the casing 20 so that the lower end of the fan motor 42 is located below the upper end of the outdoor heat exchanger 30, and the upper end of the fan motor 42 is located in the outdoor heat exchanger 30. above the upper end of the exchanger 30 .

The fan body 41 is an axial fan, located above the fan motor 42 and connected to the fan motor 42 . That is to say, the fan main body 41 is arranged within the upper and lower height ranges of the electrical and electronic component unit 60 .

The horn-shaped part 43 is installed on the casing 20 to cover the outer peripheral portion of the fan main body 41 . The horn member 43 includes a cylindrical guide portion 43a and a shield portion 43b. The shield portion 43b gradually expands upward and outward following the upper end of the guide portion 43a.

The horn 43 is attached to the casing 20 such that the lower end of the horn 43 , that is, the lower end of the guide portion 43 a is located between the upper and lower ends of the fan motor 42 . That is, the fan motor 42 is arranged at the central portion of the guide portion 43a.

As shown in FIG. 6 , the outdoor fan 40 is arranged in a position where the center A of the fan mechanism is shifted from the top view center B of the casing 20 toward the direction away from the opening 3 a on the outdoor heat exchanger 30 . position.

Specifically, the fan mechanism center A is the center of a line formed by connecting the shaft centers FC (see FIG. 4 ) of the fan bodies 41 of the two outdoor fans 40 in plan view. The center B of the casing 20 is the intersection of diagonal lines formed by connecting the four corners of the casing 20 . In this embodiment, the center A of the fan mechanism is offset to the rear side of the center B of the casing 20 in plan view.

In further detail, as shown in FIG. 1 , the position of the outdoor fan 40 is shifted to the rear side direction of the transverse line SL of the horizontal direction passing through the top view center B of the casing 20 , and is shifted to The side of the space surrounded by the outdoor heat exchanger 30 . That is to say, as shown in FIG. 4 , the outdoor fan 40 is supported by the casing 20 so that in the side view of the outdoor unit 10 , the axial center FC of the fan main body 41 is offset to the center of the casing 20 . The rear side of the vertical center BC through which the center B is looked down. The outdoor fan 40 is disposed close to the outdoor heat exchanger 30 . Since the position of the outdoor fan 40 is shifted to the rear, the electrical and electronic component unit 60 is disposed between the front side of the cabinet 20 and the horn-shaped part 43 of the outdoor fan 40 . The air outlet 26 is formed on the rear side of the center.

－Operating action－

Next, the working conditions of the outdoor unit 10 will be described.

First, after the compression mechanism 50 is driven and the outdoor fan 40 is driven, the outdoor air is sucked into the lower space 2 a of the casing 20 through the air inlet 25 . Since the outdoor air passes through the outdoor heat exchanger 30 on the way of flowing into the lower space 2 a, the outdoor air exchanges heat with the refrigerant in the outdoor heat exchanger 30 . The outdoor air in the lower space 2a flows into the upper space 2b, passes through the fan main body 41 of the outdoor fan 40, and blows out from the air outlet 26 to the outside.

On the other hand, the refrigerant compressed in the compression mechanism 50 is condensed, for example, in the outdoor heat exchanger 30, then flows into the indoor unit, evaporates in the indoor heat exchanger, and returns to the compression mechanism 50. cycle for cooling operation, etc.

-Effect of the first embodiment-

As described above, in the first embodiment, the outdoor fan 40 is supported by the casing 20 such that the lower end of the fan motor 42 is located below the upper end of the outdoor heat exchanger 30 , so that The upper end of the fan motor 42 is located above the upper end of the outdoor heat exchanger 30 . Therefore, according to the present first embodiment, the air passage between the outdoor heat exchanger 30 and the fan main body 41 can be shortened, and the ventilation resistance can be reduced. As a result, the air volume of the fan of the outdoor fan 40 can be reduced.

Since the fan motor 42 is located at the center of the horn member 43, passage resistance can be reduced.

Since the support member 70 includes the motor fixing portion 73 that is recessed below the mounting portions 72 on both sides, the resistance to air flow can be reduced, and the position of the fan motor 42 can be lowered compared with the prior art. .

Since the electrical and electronic component unit 60 is arranged above the outdoor heat exchanger 30 , it is possible to effectively utilize the useless space around the outdoor fan 40 .

Because the outdoor fan 40 is arranged at a position far away from the opening 3a of the outdoor heat exchanger 30, that is, the outdoor fan 40 is far away from the side blocking portion of the casing 20, so that the suction resistance can be reduced. . As a result, the air volume of the fan of the outdoor fan 40 can be reduced.

Since the outdoor fan 40 is close to the outdoor heat exchanger 30 , the amount of air passing through the outdoor heat exchanger 30 increases, thereby improving the heat exchange efficiency of the outdoor heat exchanger 30 .

Because the electrical and electronic component unit 60 is arranged between the front side of the casing 20 and the outdoor fan 40 , the useless space generated when the outdoor fan 40 is positioned off-center can be effectively utilized.

In particular, since the outdoor fan 40 can also reliably suck air from the upper end portion of the outdoor heat exchanger 30 located below the electrical and electronic component unit 60 , it is possible to suppress a decrease in heat exchange efficiency of the outdoor heat exchanger 30 .

(the second embodiment of the utility model)

Next, a second embodiment of the present utility model will be described in detail with reference to the drawings.

As shown in Figures 7 to 10, in this embodiment, the compression mechanism 50 includes only one compressor 5a and the fan mechanism 4a includes only one outdoor fan 40, instead of the compression mechanism 50 including two compressors in the first embodiment. The machines 5a, 5b and the fan mechanism 4a include two outdoor fans 40 .

Specifically, the compression mechanism 50 includes a compressor 5 a , and on the other hand, the electrical and electronic component unit 60 is arranged on the left side of the casing 20 .

Although not shown in the figure, the outdoor fan 40 in the second embodiment is the same as the first embodiment, the fan motor 42 is supported by the casing 20 so that the lower end of the fan motor 42 is located outdoors. Below the upper end of the heat exchanger 30, the upper end of the fan motor 42 is located above the upper end of the outdoor heat exchanger 30, and the lower end of the horn-shaped member 43 is located between the upper and lower ends of the fan motor 42. between.

As shown in FIG. 10 , the outdoor fan 40 is arranged after the axis FC, that is, the center A of the fan mechanism, deviates from the top view center B of the casing 20 toward the direction away from the opening 3 a on the outdoor heat exchanger 30 where you are.

Specifically, as shown in FIG. 7 , the outdoor fan 40 is shifted toward the right side from the longitudinal tangent LL of the casing 20 in the front-rear direction passing through its center B in a top view, that is, toward the The direction of the second side is shifted, and it is shifted to the side of the space surrounded by the outdoor heat exchanger 30 in the plan view.

Since the outdoor fan 40 is shifted to the right, the electrical and electronic component unit 60 is arranged between the left side of the cabinet 20 and the horn-shaped part 43 of the outdoor fan 40 . The air outlet 26 is formed offset to the right from the central position. Other structures, functions and effects are the same as those of the first embodiment.

(Other implementations)

The present invention can also adopt the following structures in the above-mentioned first embodiment.

In the first embodiment, the compression mechanism 50 includes two compressors 5a and 5b, but otherwise, the compression mechanism 50 may include one compressor 5a. That is, in the outdoor unit 10 in the first embodiment, the electrical and electronic component unit 60 may be installed on the front side without change, and the compressor 5a may be provided as one.

In each of the above-mentioned embodiments, the air conditioner has been described, but the present invention is not only applicable to the air conditioner, but the present invention is applicable to various refrigeration devices for cooling a freezer or the like.

In the above-mentioned embodiments, the outdoor fan 40 is arranged at a position away from the opening 3a of the outdoor heat exchanger 30 from the top view center B of the cabinet 20, but the outdoor fan 4 is also arranged at the top view center B of the cabinet 20. OK.

In addition, the above-mentioned embodiment is a preferable example in nature, and it does not intend to limit this invention, its applied object, and its use range.

－Industrial Applicability－

To sum up, the utility model is useful for an outdoor unit including an outdoor heat exchanger and an outdoor fan.

Claims (3)

1. the outdoor unit of a refrigerating plant, comprise casing (20), outdoor heat converter (30) and outdoor fan (40), this outdoor heat converter (30) is installed in this casing (20), with upright along the vertical direction state setting, this outdoor fan (40) is installed in the top of described casing (20) and has fan main body (41), fan motor (42) and horn-like parts (43), it is characterized in that:

Described outdoor heat converter (30) is to stride across all sides of described casing (20) and the bending-type heat exchanger that forms,

Described fan is attached at the bottom of described fan main body (41) with motor (42), described fan is supported by described casing (20) through support component (70) with motor (42), so that described fan is positioned at the below of the upper end of described outdoor heat converter (30) with the lower end of motor (42), described fan is positioned at the top of the upper end of described outdoor heat converter (30) with the upper end of motor (42), and the lower end of described horn-like parts (43) is positioned between the upper and lower side of described fan with motor (42).

2. the outdoor unit of refrigerating plant according to claim 1 is characterized in that:

Described support component (70) comprises the installation portion (72) at position, both sides of level and the motor fixed part (73) of central part,

The installation portion (72) at the position, both sides of this level be positioned at described outdoor heat converter (30) the upper end the top and be installed on the casing (20),

The motor fixed part (73) of this central part is followed this installation portion (72) and is caved in into than described installation portion (72) more down, is positioned at the below of the upper end of described outdoor heat converter (30).

3. the outdoor unit of refrigerating plant according to claim 1 and 2 is characterized in that:

Near the part of the upper end of described outdoor heat converter (30), be furnished with the electric and electronic components and parts unit (60) of the top that is positioned at this outdoor heat converter (30).

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