JP2009204291A - Heat source unit of refrigerating device - Google Patents

Abstract

To provide a heat source unit of a refrigeration apparatus capable of suppressing the occurrence of air flow spots passing through a heat exchanger,
An outdoor unit 3 includes a casing 31 and a fan 352. The front face 311 of the casing 31 is formed with a blower port 311a for sending air to the outside. The fan 352 is housed in the casing 31 and generates a flow of air that is blown out through the air blowing port 311a. The fan 352 is arranged such that the rotation center axis Y1 is inclined at a predetermined angle in a top view with respect to a first direction Y2 perpendicular to the front of the casing 31.
[Selection] Figure 2

Description

  The present invention relates to a heat source unit of a refrigeration apparatus.

Conventionally, refrigeration apparatuses such as an air conditioner and a water heater include a heat source unit installed outside the room, such as an outdoor unit or a heat pump unit. Such a heat source unit includes a casing, a heat exchanger, a fan, and the like as disclosed in Patent Document 1, for example. According to this heat source unit, air outside the heat source unit is first sucked into the casing, and then the air sucked into the casing passes through the heat exchanger, so that heat exchange is performed. The air after heat exchange is blown out of the casing by the fan.
JP-A-9-170786

  By the way, in the casing, a suction port for sucking air from outside into the casing is formed in the vicinity of the heat exchanger based on the shape of the heat exchanger. For example, an L-shaped heat exchanger is used. However, due to the influence of the shape of the heat exchanger, the air suction capacity near the suction port is not uniform, and the air volume passing through the heat exchanger may be uneven.

  Then, an object of this invention is to provide the heat source unit of the freezing apparatus which can suppress generation | occurrence | production of the spot of the airflow which passes along a heat exchanger.

  The heat source unit of the refrigeration apparatus according to the first aspect includes a casing and a fan. A blower opening for sending air to the outside is formed on the front surface of the casing. A fan is accommodated in a casing and produces | generates the flow of the air which blows off through a ventilation opening. The fan is arranged such that its rotation center axis is inclined at a predetermined angle in a top view with respect to a first direction perpendicular to the front surface of the casing.

  According to this heat source unit, the fan is provided in the casing in a state where the rotation center axis of the fan is inclined at a predetermined angle with respect to the first direction when viewed from above. As a result, when a suction port for sucking air from outside into the casing is provided in the casing, the air suction capacity in the vicinity of the suction port is likely to be uniform, so the air flow rate through the heat exchanger It is possible to suppress the occurrence of spots on the surface.

  The heat source unit of the refrigeration apparatus according to the second aspect is the heat source unit of the refrigeration apparatus according to the first aspect, and further includes a bell mouth. The bell mouth is fixed in the vicinity of the air outlet inside the casing and guides the flow of air generated by the fan. The bell mouth is disposed at a predetermined angle with respect to the first direction together with the rotation center axis of the fan.

  According to this heat source unit, the bell mouth is disposed at a predetermined angle with the fan, so that the air suction capability near the suction port of the casing is more likely to be uniform. Therefore, it is possible to further suppress the occurrence of spots in the air volume of the air passing through the heat exchanger.

  The heat source unit of the refrigeration apparatus according to the third aspect is the heat source unit of the refrigeration apparatus according to the second aspect, and further includes a blow grill. The blowout grill is attached to the casing so as to cover the blower opening. The blow-out grill is disposed at a predetermined angle with respect to the first direction together with the bell mouth.

  When the bell mouth is tilted, the bell mouth may come into contact with the blowing grill depending on the degree of tilting, and for example, the blowing grill may be bent. Thus, in this heat source unit, the blow grill is attached to the casing at a predetermined angle so that the bell mouth does not contact the blow grill. Therefore, it is possible to prevent the bell mouth from coming into contact with the blowing grill and bending the blowing grill.

  The heat source unit of the refrigeration apparatus according to the fourth aspect of the present invention is the heat source unit of the refrigeration apparatus according to any one of the first to third aspects of the present invention, and further includes a substantially L-shaped heat exchanger. A heat exchanger is arrange | positioned inside a casing and heat-exchanges with the air before blowing outside from a ventilation port.

  Due to the structure of the heat source unit provided with the L-shaped heat exchanger, the air suction capacity near the suction port of the casing formed based on the shape of the heat exchanger is difficult to be uniform. However, according to the heat source unit of the present invention, since the fan is inclined at a predetermined angle, even if an L-shaped heat exchanger is provided, the amount of air passing through the heat exchanger is likely to be uniform.

  The heat source unit of the refrigeration apparatus according to a fifth aspect is the heat source unit of the refrigeration apparatus according to the fourth aspect, wherein the heat exchanger has a first part and a second part. The first portion extends along the side surface of the casing. The second portion extends along the back surface of the casing. And the fan is arrange | positioned so that the rotation center axis may incline to the 1st part side of a heat exchanger.

  Thereby, since the suction capability of the air near the suction inlet of a casing becomes easy to become uniform, it can suppress that a spot arises in the air volume of the air which passes a heat exchanger.

  According to the heat source unit of the refrigeration apparatus according to the first aspect, when the casing is provided with a suction port for sucking air from outside into the casing, the air suction capability near the suction port tends to be uniform. It is possible to suppress the occurrence of spots in the air volume of the air passing through the heat exchanger.

  According to the heat source unit of the refrigeration apparatus according to the second aspect, it is possible to further suppress the occurrence of spots in the air volume of the air passing through the heat exchanger.

  According to the heat source unit of the refrigeration apparatus according to the third aspect, it is possible to prevent the bell mouth from coming into contact with the blowing grill and bending the blowing grill.

  According to the heat source unit of the refrigeration apparatus according to the fourth aspect, since the fan is inclined at a predetermined angle, even if an L-shaped heat exchanger is provided, the amount of air passing through the heat exchanger is likely to be uniform.

  According to the heat source unit of the refrigeration apparatus according to the fifth aspect of the present invention, the air suction capability near the suction port of the casing is likely to be uniform, so that it is possible to suppress the occurrence of spots in the air volume of the air passing through the heat exchanger.

  Hereinafter, a heat source unit of a refrigeration apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

(1) Outline FIG. 1 is an external view of an air conditioner having an outdoor unit in which a heat source unit of a refrigeration apparatus according to this embodiment is adopted. The air conditioner 1 of FIG. 1 is configured by being divided into an indoor unit 2 attached to an indoor wall surface and the like, and an outdoor unit 3 installed outdoors, and performs indoor cooling operation, heating operation, and the like. It can be carried out.

  An indoor heat exchanger (not shown), a blower fan, and the like are accommodated inside the indoor unit 2, and an outdoor heat exchanger 32 (described later), a compressor 33 (described later), and the like are accommodated inside the outdoor unit 3. Has been. The indoor heat exchanger of the indoor unit 2 and the outdoor heat exchanger 32 of the outdoor unit 3 are connected via the refrigerant pipe 4.

(2) Configuration of Outdoor Unit Next, the configuration of the outdoor unit 3 according to the present embodiment will be described with reference to FIG. The outdoor unit 3 mainly includes a casing 31, an outdoor heat exchanger 32, a compressor 33, an electrical component unit 34, a blower 35, a bell mouth 36, and a blowout grill 37. In the following description, expressions indicating directions such as “up”, “down”, “left”, “vertical” and the like are used as appropriate. However, as shown in FIG. Each direction in the state that is attached to and normally used.

〔casing〕
The casing 31 has a substantially rectangular parallelepiped shape, and is formed of sheet metal and resin. The inside of the casing 31 is divided into a machine room S1 and a blower room S2 by a partition plate 31a extending substantially vertically. The machine room S1 houses the compressor 33 and the electrical component unit 34, and the air blowing room S2 houses the outdoor heat exchanger 32 and the air blowing unit 35.

  The casing 31 has a blower port 311a and a suction port 311b. The air blowing port 311a is formed on the front surface 311 of the casing 31 and has a substantially circular shape. The suction port 311b is formed over the back surface 313 of the casing 31 and the left side surface 312 of the casing 31 in a top view as shown in FIG. That is, the suction port 311b is formed based on the shape of the outdoor heat exchanger 32 described later.

[Outdoor heat exchanger]
The outdoor heat exchanger 32 is for exchanging heat with the air that has been sucked into the casing 31 via the suction port 311b. The outdoor heat exchanger 32 has a substantially L-shape, and is disposed inside the casing 31 along the back surface 313 from the left side surface 312 of the casing 31. More specifically, the outdoor heat exchanger 32 has a first portion 32 a that extends along the left side surface 312 of the casing 31 and a second portion 32 b that extends along the back surface 313 of the casing 31. ing.

  Such an outdoor heat exchanger 32 includes a heat transfer tube (not shown) that is bent back and forth at both ends in the longitudinal direction, and a fin portion (not shown) that includes a plurality of fins through which the heat transfer tube is inserted. . The heat transfer tube is connected to the refrigerant pipe 4, and the refrigerant flowing through the refrigerant pipe 4 flows inside the heat transfer pipe.

[Compressor]
The compressor 33 is for compressing the refrigerant flowing through the refrigerant pipe 4, and is disposed in the machine room S1. More specifically, the compressor 33 is arranged in the vicinity of the partition plate 31a and below the electrical component unit 34 in the machine room S1. Such a compressor 33 is driven by a compressor motor.

[Electrical component unit]
The electrical component unit 34 is for housing a control board, a reactor, and the like on which a plurality of electrical components such as capacitors and transistors are mounted, and is disposed on the upper side of the compressor 33 in the machine room S1. A plurality of harnesses extend from the control board in the electrical component unit 34. These harnesses are for transmitting drive control signals and the like to the fan motor 351 in the compressor 33 and the blower 35, and extend from the electrical component unit 34 to the compressor 33, the fan motor 351, and the like. .

[Blower part]
The blower 35 is for sending the air in the blower chamber S <b> 2 to the outside of the outdoor unit 3, and is provided in the blower chamber S <b> 2 of the casing 31. The air blowing unit 35 includes a fan motor 351 and a fan 352.

  The fan motor 351 is a rotational drive source of the fan 352 and is fixed to a fan motor base 351 a attached to the back surface of the casing 31. The output shaft of the fan motor 351 is connected to the rotation center axis Y1 of the fan 352. Therefore, when the fan motor 351 is rotated by the drive control signal output from the control board of the electrical component unit 34, the rotation is transmitted to the rotation center axis Y1 of the fan 352 via the output shaft of the fan motor 351. The fan 352 can rotate.

  The fan 352 is a propeller fan having a plurality of blades, and is provided at a position corresponding to the air blowing port 311a of the casing 31 so that the air in the air blowing chamber S2 can be discharged to the outside. The fan 352 is rotationally driven by the fan motor 351 so that the air after heat exchange by the outdoor heat exchanger 32 is blown out through the air blowing port 311 a in the front surface 311 of the casing 31. Generate a flow.

  In particular, the fan 352 according to the present embodiment is arranged such that the rotation center axis Y1 is inclined at a predetermined angle in a top view with respect to a first direction Y2 perpendicular to the front surface 311 of the casing 31. More specifically, the fan 352 is disposed such that the rotation center axis Y1 is inclined toward the first portion 32a side of the outdoor heat exchanger 32. In other words, as shown in FIG. 2A, the fan 352 is disposed to be inclined toward the bent portion side of the outdoor heat exchanger 32, that is, toward the left side surface 312 of the casing 31 in a top view.

  The angle of inclination of the rotation center axis Y1 (that is, the predetermined angle) is determined based on, for example, the size of the fan 352, the amount of air sucked into the casing 31, the amount of air blown out of the room, etc. It can be determined by experiment. For example, the predetermined angle may be 1 degree to 2 degrees.

[Bellmouth]
The bell mouth 36 is for guiding the air flow after heat exchange generated by the fan 352 to the outside of the casing 31, and is provided so as to correspond to the fan 352 and the air blowing port 311 a of the casing 31. Yes. More specifically, the bell mouth 36 is fixed in the vicinity of the air blowing port 311 a in the air blowing chamber S <b> 2 of the casing 31. The bell mouth 36 is formed with an opening 36 a through which air after heat exchange passes. The opening 36 a has a substantially circular shape that is substantially the same size as the air blowing port 311 a of the casing 31.

  As shown in FIG. 2A, the bell mouth 36 according to the present embodiment is disposed at a predetermined angle with respect to the first direction Y2 together with the rotation center axis Y1 of the fan 352. That is, the bell mouth 36 is disposed to be inclined to the left side surface 312 side of the casing 31 together with the fan 352. Note that the angle of inclination of the bell mouth 36 (that is, the predetermined angle) is the same as the predetermined angle on the rotation center axis Y1 of the fan 352, for example, the size of the fan 352, the amount of air sucked into the casing 31, It can be determined based on the amount of air to be determined, or can be determined by experiment. Examples of the predetermined angle include 1 degree to 2 degrees.

[Blowout grill]
The blow-out grill 37 is attached to the front surface 311 of the casing 31 from the outside of the casing 31 so as to cover the opening 36a of the bell mouth 36 and the air blowing port 311a of the casing 31. The blowout grill 37 is formed in a mesh shape with resin. In particular, the blowout grill 37 is formed with a blowout opening 37a for air from the fan 352 sent through the bell mouth 36. That is, the portion of the blowout port 37a in the blowout grill 37 is formed with a coarser mesh than the portion of the blowout grill 37 other than the blowout port 37a so that the air after heat exchange passes therethrough. On the contrary, the portions other than the blowout port 37a in the blowout grill 37 are formed with a relatively fine mesh so that air does not easily pass through. Such a blowout port 37a has a substantially circular shape having the same size as the blower port 311a of the casing 31 and the opening 36a of the bell mouth 36, and is located so as to correspond to the blower port 311a and the opening 36a. ing.

(3) Flow of air sucked into casing Next, the flow of air sucked into the outdoor unit 3 will be described with reference to FIGS. FIG. 3A shows an outdoor unit 3 ′ in which the fan 352 ′ is arranged so that the rotation center axis Y1 ′ of the fan 352 ′ is perpendicular to the front surface 311 of the casing 31 (ie, the conventional outdoor unit 3 ′). It is a figure which shows the flow of air. In the outdoor unit 3 ′ shown in FIG. 3A, the bell mouth 36 ′ is fixed to the casing 31 without being inclined. 3B, as described above, the outdoor unit 3 in which the fan 352 is arranged so that the rotation center axis Y1 of the fan 352 is inclined at a predetermined angle with respect to the first direction Y2 (that is, the outdoor unit of the present embodiment). It is a figure which shows the flow of air of 3). 3A and 3B, the casing 31 having the suction port 311b, the L-shaped outdoor heat exchanger 32 including the first portion 32a and the second portion 32b, and the blow grill 37 have the same reference numerals. It is attached. 3A and 3B, arrows A1 to A4, A1 ′ to A4 ′ indicate air sucked into the casing 31 from the suction port 311b, and arrows B and B ′ indicate the outside of the casing 31. It shows the air blown out. In particular, the directions of the arrows A1 to A4, A1 ′ to A4 ′, B ′, and B indicate the direction of air flow, and the thicknesses of the arrows A1 to A4, A1 ′ to A4 ′, B ′, and B are shown. Indicates the air volume.

  In the conventional outdoor unit 3 ′, as shown by arrows A 1 ′ to A 4 ′ in FIG. 3A, the air sucked into the casing 31 is bent from the outside of the casing 31 into the outdoor heat exchanger 32. The closer the part is, the more the air volume is, and conversely, the air volume becomes smaller as the introduction point into the casing 31 is farther from the bent part of the outdoor heat exchanger 32 (air volume of air A2 ′> air volume of air A3 ′> air). A1 ′, A4 ′ air volume). On the other hand, in the outdoor unit 3 according to the present embodiment, as indicated by arrows A1 to A4 in FIG. 3 (b), the outside of the casing 31 is excluded except for the arrow A4 at the machine chamber S1 side end of the outdoor heat exchanger 32. The air volume is substantially uniform regardless of the location from the inside to the inside (air volume of air A1 = air volume of air A2 = air volume of air A3). This is because the fan 352 is disposed such that the rotation center axis Y1 of the fan 352 is inclined toward the bent portion side of the outdoor heat exchanger 32 with respect to the first direction Y2, and the bell mouth 36 is bent toward the bent portion side of the outdoor heat exchanger 32. This is because the air sucked into the casing 31 from the vicinity of the arrow A <b> 1 is easily introduced into the fan 352. That is, the fan 352 is inclined toward the first portion 32a side of the outdoor heat exchanger 32, so that the difference in air resistance between the first portion 32a side of the outdoor heat exchanger 32 in the outdoor unit 3 is reduced.

  The air sucked from the suction port 311b is heat-exchanged by the outdoor heat exchanger 32, and then the outside of the casing 311 as shown by the arrow B ′ in FIG. 3 (a) and the arrow B in FIG. 3 (b). Is blown out.

(4) Effect (A)
According to the outdoor unit 3 of the air conditioner 1 according to the present embodiment, the fan 352 is inclined at a predetermined angle in a top view with respect to the first direction Y2 in which the rotation center axis Y1 of the fan 352 is orthogonal to the front surface 311 of the casing 31. Is provided in the casing 31. Thereby, since the suction capability of the air near the suction inlet 311b of the casing 31 becomes easy to become uniform, it can suppress that a spot arises in the air volume of the air which passes the outdoor heat exchanger 32. FIG.

(B)
Further, in the outdoor unit 3 according to the present embodiment, the bell mouth 36 is disposed at a predetermined angle with the fan 352, so that the air suction capability in the vicinity of the suction port 311b of the casing 31 is more likely to be uniform. Therefore, it is possible to further suppress the occurrence of spots in the air volume of the air passing through the outdoor heat exchanger 32.

(C)
By the way, in the outdoor unit provided with the L-shaped outdoor heat exchanger, the air suction capability in the vicinity of the suction port 311b of the casing 31 is difficult to be uniform due to its structure. However, according to the outdoor unit 3 of the present invention, since the fan 352 is inclined at a predetermined angle, even if the L-shaped outdoor heat exchanger 32 is provided, the air flow through the outdoor heat exchanger 32 becomes uniform. It becomes easy.

(D)
The outdoor heat exchanger 32 includes a first portion 32 a that extends along the left side surface 312 of the casing 31 and a second portion 32 b that extends along the back surface 313 of the casing 31. The fan 352 is arranged such that the rotation center axis Y1 is inclined toward the first portion 32a side of the outdoor heat exchanger 32. Thereby, since the air suction capability in the vicinity of the inlet 311b of the casing 31 is likely to be uniform, it is possible to suppress the occurrence of spots in the air volume of the air passing through the outdoor heat exchanger 32.

<Other embodiments>
(A)
When the bell mouth 36 is tilted as in the above embodiment, the bell mouth 36 may come into contact with the blow grill 37 depending on the degree of tilt, and the blow grill 37 may be bent. In such a case, as shown in the outdoor unit 3 in FIG. 4, in order to prevent the end of the bell mouth 36 from coming into contact with the blow grill 37, the blow grill 37 is disposed at a predetermined angle with the bell mouth 36. You may let them. That is, the blow-out grill 37 of FIG. 4 is disposed with a bell mouth 36 inclined at a predetermined angle with respect to the first direction Y2. With such a configuration, it is possible to prevent the bell mouth 36 from coming into contact with the blowing grill 37 and the blowing grill 37 from being bent.

  Note that the angle of inclination of the blow-out grill 37 (that is, the predetermined angle) is sucked into the size of the fan 352 or the inside of the casing 31, for example, similarly to the predetermined angle of the fan 352 and the predetermined angle of the bell mouth according to the embodiment. It can be determined based on the amount of air, the amount of air blown out of the room, or the like, or can be determined by experiment. As the predetermined angle, for example, 1 to 2 degrees is raised.

(B)
In the above embodiment, the case where the bell mouth 36 is tilted together with the fan 352 has been described. However, the present invention is not limited to this, and only the fan 352 may be tilted.

(C)
Although the said embodiment demonstrated the case where the heat source unit which concerns on this invention was applied to the outdoor unit 3 of the air conditioning apparatus 1, the use of the heat source unit which concerns on this invention is not limited to this. The heat source unit according to the present invention can also be applied to, for example, a heat pump type unit that is disposed outdoors in a water heater. Also in this case, the fan is attached to the casing so that the rotation center axis of the fan is inclined at a predetermined angle with respect to the first direction orthogonal to the front surface of the casing, as in the above embodiment. Thereby, there can exist an effect similar to the said embodiment.

(D)
Although the case where the blow grill 37 is provided separately from the casing 31 has been described in the above embodiment, the heat source unit according to the present invention can be applied to, for example, an outdoor unit in which the blow grill and the casing are integrated.

(E)
In the said embodiment, although demonstrated taking the case of the outdoor unit 3 of the type in which air blows off from the front side of a casing as an example of the heat source unit which concerns on this invention, the use of the heat source unit which concerns on this invention is limited to this Not. For example, the heat source unit can be applied to an up-blowing type outdoor unit 103 as shown in FIG.

  FIG. 5 is a longitudinal sectional view of the outdoor unit 103 and schematically shows the configuration of the outdoor unit 103. The outdoor unit 103 in FIG. 5 mainly includes a casing 531 having a rectangular shape, an outdoor heat exchanger 532, a fan 552, a bell mouth 536, and a blow grill 537. In particular, the outdoor heat exchanger 532 is a U-shaped heat exchanger having a shape along three side surfaces of the four side surfaces of the casing 531, and the casing 531 to which the heat exchanger 532 is attached. The three side surfaces are formed with suction ports (not shown). The fan 552 is provided in the casing 531 such that the rotation center axis Y101 is inclined at a predetermined angle with respect to a second direction Y102 perpendicular to the upper surface 531a of the casing 531. The bell mouth 536 is provided in the casing 531 so as to be inclined together with the inclined fan 552. In addition, a blowout port (not shown) is formed on the upper surface 531a of the casing 531, and the blowout grill 537 is attached to the upper surface 531a of the casing 531 so as to cover the blowout port.

  In such an outdoor unit 103 as well, the air volume sucked from the outside of the casing 531 through the suction port is likely to be uniform as in the above embodiment, and thus the air volume passing through the outdoor heat exchanger 532 is uneven. This can be suppressed.

  In the heat source unit according to the present invention, the suction capacity near the suction port for sucking air from the outside into the casing becomes substantially uniform, and therefore it is possible to suppress the occurrence of spots in the air volume of the air passing through the heat exchanger. It has the effect of being able to. Therefore, the heat source unit can be applied as a heat source unit that is disposed outside the refrigeration apparatus, such as an outdoor unit of an air conditioner or a heat pump type unit of a water heater.

The external view of the air conditioning apparatus which concerns on this embodiment. (A) It is the schematic of the structure of the outdoor unit which concerns on this embodiment, Comprising: The figure at the time of seeing the inside of an outdoor unit from the top. (B) The front view of the outdoor unit which concerns on this embodiment. (A) The figure for demonstrating the flow of the air mainly suck | inhaled in the inside of an outdoor unit in the conventional outdoor unit. (B) In the outdoor unit which concerns on this embodiment, the figure for demonstrating the flow of the air mainly suck | inhaled inside the outdoor unit. It is the schematic of the structure of the outdoor unit which concerns on other embodiment (a), Comprising: The figure at the time of seeing the inside of an outdoor unit from the top. It is the longitudinal cross-sectional view of the outdoor unit which concerns on other embodiment (e), Comprising: The figure which showed the structure of the outdoor unit schematically.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus 2 Indoor unit 3 Outdoor unit 31 Casing 32 Outdoor heat exchanger 32a 1st part 32b 2nd part 33 Compressor 34 Electrical component unit 35 Blower part 36 Bellmouth 36a Opening 37 Outlet grille 37a Outlet 311 Front 311a Blower port 311b Suction port 312 Left side 313 Rear surface 351 Fan motor 352 Fan S1 Machine room S2 Blower chamber Y1 Fan rotation center axis Y2 First direction A1 to A4: sucked air B blown air

Claims (5)

A casing (31) having a blower opening (311a) for sending air to the outside on the front surface;
A fan (352) that is housed in the casing (31) and generates a flow of the air blown out through the air blowing port (311a);
With
The fan (352) is arranged such that its rotation center axis (Y1) is inclined at a predetermined angle in a top view with respect to a first direction (Y2) perpendicular to the front of the casing (31).
A heat source unit (1) of a refrigeration apparatus. A bell mouth (36) that is fixed in the vicinity of the air blowing port (311a) inside the casing (31) and guides the air flow generated by the fan (352);
The bell mouth (36) is disposed at a predetermined angle with respect to the first direction (Y2) together with the rotation center axis (Y1) of the fan (352).
The heat source unit (1) of the refrigeration apparatus according to claim 1. A blow grill (37) attached to the casing (31) so as to cover the blower opening (311a);
The blow-out grill (37) is disposed at a predetermined angle with respect to the first direction (Y2) together with the bell mouth (36).
The heat source unit (1) of the refrigeration apparatus according to claim 2. It further includes a substantially L-shaped heat exchanger (32) that is disposed inside the casing (31) and exchanges heat with the air before being blown out from the air blowing port (311a).
The heat source unit (1) of the refrigeration apparatus according to any one of claims 1 to 3. The heat exchanger (32) includes a first portion (32a) extending along the side surface (312) of the casing (31) and a second portion (32b) extending along the back surface (313) of the casing (31). )
The fan (352) is arranged such that its rotation center axis (Y1) is inclined toward the first part (32a) of the heat exchanger (32).
The heat source unit (1) of the refrigeration apparatus according to claim 4.

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