JP2013194960A - Outdoor unit of refrigeration apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outdoor unit of a refrigeration apparatus that can cool an electric component with air and suppress sticking of drops of water on the electric component.SOLUTION: An outdoor unit (10) has a partition plate (30) which partitions off an air chamber (26) and a machine chamber (27). The machine chamber (27) includes an intake (25) which is provided below an electric component (40) and takes outside air in, and an outlet (34) which is provided above the electric component (40) and discharges air having cooled the electric component (40) to the side of the air chamber (26). The outlet (34) has a louver (35) and is formed to positioned on the right side of a contact position (CP) between a tangent (SL) and the partition plate (30) in a right-and-left direction, while the tangent (SL) is drawn from the point of a side end of an impeller (15A) of an outdoor blower (15) positioned most on the back side in plan view to a projection part of the partition plate (30).

Description

  The present invention relates to an outdoor unit for a refrigeration apparatus comprising an air chamber in which an axial blower and a heat exchanger are housed, a machine room in which a compressor and electrical components are housed, and a partition plate that partitions the air chamber and the machine room. About.

As an outdoor unit of the refrigeration apparatus, for example, an outdoor unit of an air conditioner described in Patent Document 1 is known.
In the outdoor unit, an electrical component box for storing electrical components is disposed at a position above the axial blower and adjacent to the axial blower. A suction port that communicates with the outside air and a discharge port that communicates with an air chamber in which the axial blower is disposed are formed on the side surface of the electrical component box. An air flow path through which air outside the outdoor unit passes through the electrical component box and flows into the air chamber is formed by the suction port and the discharge port.

JP 2002-317773 A

By the way, when the axial blower rotates due to strong winds accompanying rain, water droplets that enter the air chamber together with outside air mainly scatter to the outside in the radial direction of the impeller of the axial blower.
The electrical component box of the outdoor unit has a discharge port formed on the side surface of the electrical component box adjacent to the axial blower. For this reason, water drops may enter the electrical component box through the discharge port, and the water droplets may adhere to the electrical components.

  In order to solve the above-described problems, an object of the present invention is to provide an outdoor unit for a refrigeration apparatus that can cool an electrical component and prevent water droplets from adhering to the electrical component.

  The outdoor unit of the refrigeration apparatus according to the first aspect of the present invention includes an air chamber in which an axial blower and a heat exchanger are accommodated, a machine room in which a compressor and electrical components are accommodated, the air chamber, and the machine A partition plate for partitioning the chamber, the axial blower is arranged to blow outward on one surface of the air chamber, and the heat exchanger discharges air blown from the axial blower When the one surface of the air chamber is a front surface, the air chamber is disposed on the back surface side of the air chamber, and the partition plate is at least partially from the side of the axial flow fan toward the side end of the heat exchanger. And the machine room is provided at a lower position than the electrical component, and an intake port for taking outside air from outside the machine, and an upper position than the electrical component. Provided after cooling the electrical component. A discharge port for discharging the air to the air chamber side, the discharge port being formed in the partition plate and having a louver, and further, the discharge port is the axial blower in a plan view A tangent line is drawn to a portion of the side plate of the impeller that is located on the most rear side, and the protruding portion of the partition plate is drawn, and the contact position between the tangent and the partition plate is set in the left-right direction. The gist is that it is formed to be located outside.

  According to the said structure, compared with the structure by which a discharge port is formed in the inner side rather than the contact position of the said tangent and a partition plate in the partition plate, ie, the side close | similar to an axial fan, the water droplet which spreads by rotation of an axial fan Is prevented from directly splashing into the outlet. Further, for example, when water droplets scattered by the rotation of the axial blower bounce back to the heat exchanger and enter the discharge port, the water droplets adhere to the louver, so that the water droplets are prevented from entering the machine room.

  In addition, since the static pressure of the air chamber is lower than the static pressure of the machine room when the axial blower is rotating, outside air outside the machine flows into the machine room from the suction port and the discharge port. An air flow path that flows out from the machine chamber to the air chamber is formed. For this reason, an electrical component is air-cooled.

The gist of the second aspect of the present invention is the outdoor unit of the refrigeration apparatus according to the first aspect, wherein a plurality of the louvers are provided at the discharge port.
According to the above configuration, since a plurality of louvers are provided at the discharge port, an opening portion between adjacent louvers can be reduced in the discharge port as compared with a configuration in which one louver is provided at the discharge port. it can. Thereby, it can suppress that a small animal and an insect penetrate | invade into a machine room.

  The invention according to claim 3 is the outdoor unit of the refrigeration apparatus according to claim 1 or 2, wherein the louver is formed by cutting and raising the partition plate toward the machine room. And

According to the said structure, since a louver cuts and raises a partition plate toward the machine room side, the contact of a louver and a heat exchanger can be suppressed at the time of an assembly of an outdoor unit.
In addition, in order to form a louver by cutting and raising the partition plate, a through hole is formed in the partition plate, and a discharge port is formed compared to a configuration in which a louver as a member different from the partition plate is attached to the partition plate. The number of parts for doing so is reduced.

  According to a fourth aspect of the present invention, in the outdoor unit of the refrigeration apparatus according to the third aspect, the opening direction of the opening portion on the machine room side formed by the louver is not opposed to the electrical component. The gist.

  According to the above configuration, when the water droplets pass through the discharge port, the water droplets are scattered in the machine room along the opening direction of the opening part on the machine room side formed by the louver and the partition plate. For this reason, the water droplets are scattered toward a position different from the position where the electrical component is disposed. Therefore, even if a water droplet enters the machine room, the water droplet is prevented from adhering to the electrical component.

  Invention of Claim 5 is an outdoor unit of the refrigerating apparatus as described in any one of Claims 1-4. WHEREIN: As for the said partition plate, the said discharge port adjoins to the said heat exchanger in planar view. The gist is that it is formed.

  According to the above configuration, the discharge port can be separated as far as possible from the axial blower. As a result, water droplets scattered radially outward from the impeller of the axial blower during strong winds with rain are prevented from directly splashing into the discharge port, and water droplets enter the machine room where the electrical components are located. Is more suppressed.

  According to the present invention, the air outlet for cooling the electrical components arranged in the machine room is formed at an appropriate position and a louver is provided at the outlet, so that it is scattered by the rotation of the axial blower during strong winds with rain. It is possible to suppress water droplets entering the machine room from the discharge port.

The schematic diagram which shows the whole structure about the air conditioner of one Embodiment. The perspective view which shows the perspective structure about the outdoor unit of the air conditioner. The perspective view which shows the perspective structure of the state which removed a part of cover about the outdoor unit of the air conditioner. About the outdoor unit of the air conditioner, (a) is a schematic diagram showing an internal structure in a plan view, and (b) is a schematic diagram showing a part of the internal structure in a front view. The perspective view which shows the enlarged structure of the discharge port of FIG. 3, and its periphery structure about the outdoor unit of the air conditioner. Sectional drawing which shows the cross-section of the AA plane of FIG. 5 about the outdoor unit of the air conditioner. The schematic diagram which shows the internal structure in planar view about the outdoor unit of the air conditioner of other embodiment.

A configuration of a heat pump type air conditioner (hereinafter referred to as “air conditioner 1”) as an example of a refrigeration apparatus will be described with reference to FIG.
The air conditioner 1 includes an outdoor unit 10 that is disposed outdoors, an indoor unit 60 that is disposed indoors, and a refrigerant circuit 70 that forms a refrigerant flow path for the indoor unit 60 and the outdoor unit 10.

  The outdoor unit 10 includes a compressor 11, an oil separator 12, a four-way switching valve 13, an outdoor heat exchanger 14, an outdoor blower 15, an expansion valve 16, an accumulator 17, and an electrical component 40. Have.

  The compressor 11 has a suction port 11A for sucking refrigerant, a compression mechanism for compressing refrigerant, and a discharge port 11B for discharging refrigerant. The compressor 11 compresses the refrigerant sucked from the suction port 11A by a compression mechanism housed inside. The compressed refrigerant is discharged from the discharge port 11B. For example, a scroll compressor can be employed as the compressor 11.

  The oil separator 12 separates the lubricating oil from the mixed gas of the lubricating oil and the refrigerant discharged from the discharge port 11B of the compressor 11. The refrigerant is sent to the four-way switching valve 13. The separated lubricating oil is returned to the compressor 11.

  The four-way switching valve 13 has a first port 13A, a second port 13B, a third port 13C, and a fourth port 13D. The four-way switching valve 13 can be switched between a first state (state indicated by a solid line in FIG. 1) and a second state (state indicated by a broken line in FIG. 1). In the first state, the first port 13A and the third port 13C communicate with each other, and the second port 13B and the fourth port 13D communicate with each other. In the second state, the first port 13A and the fourth port 13D communicate with each other, and the second port 13B and the third port 13C communicate with each other.

  The outdoor heat exchanger 14 exchanges heat between the refrigerant and air outside the outdoor unit 10 (hereinafter referred to as “outside air”). As the outdoor heat exchanger 14, for example, a cross fin type fin-and-tube heat exchanger can be employed.

The outdoor blower 15 blows outside air to the outdoor heat exchanger 14. An axial flow fan can be adopted as the outdoor fan 15.
The expansion valve 16 is decompressed to a predetermined pressure by expanding the flowing refrigerant. As the expansion valve 16, for example, an electronic expansion valve that changes the opening degree of the valve by an electric motor can be employed.

The accumulator 17 gas-liquid separates the refrigerant sucked into the compressor 11.
The electrical component 40 controls operations of the compressor 11, the four-way switching valve 13, the outdoor fan 15, and the expansion valve 16.

  The indoor unit 60 includes an indoor heat exchanger 61 that exchanges heat between the refrigerant and indoor air, and an indoor fan 62 that blows indoor air toward the indoor heat exchanger 61. As the indoor heat exchanger 61, for example, a cross fin type fin-and-tube heat exchanger can be adopted. As the indoor blower 62, for example, a cross flow blower (cross flow fan) can be employed.

  The refrigerant circuit 70 has a refrigerant pipe 71 for circulating the refrigerant, and is formed by connecting the refrigerant pipe 71 in a closed circuit shape. In the refrigerant circuit 70, a refrigerant is circulated to perform a vapor compression refrigeration cycle.

  The refrigerant pipe 71 includes two pipes 72 for connecting the indoor pipe 72 for circulating the refrigerant in the indoor unit 60, the outdoor pipe 73 for circulating the refrigerant in the outdoor unit 10, and the indoor pipe 72 and the outdoor pipe 73. And a connecting pipe 74.

  The outdoor unit 10 is connected to each other by an outdoor pipe 73 as follows. That is, the discharge port 11 </ b> B of the compressor 11 is connected to the oil separator 12. The refrigerant outlet of the oil separator 12 is connected to the first port 13A of the four-way switching valve 13. The outlet of the lubricating oil of the oil separator 12 is connected to the suction port 11 </ b> A of the compressor 11. The third port 13 </ b> C of the four-way switching valve 13 is connected to the outdoor heat exchanger 14. The outdoor heat exchanger 14 is connected to the expansion valve 16. The second port 13B of the four-way switching valve 13 is connected to the accumulator 17. The accumulator 17 is connected to the suction port 11 </ b> A of the compressor 11.

The indoor pipe 72 is connected to the indoor heat exchanger 61.
One of the connection pipes 74 connects the outdoor pipe 73 connected to the expansion valve 16 and the one indoor pipe 72 connected to the indoor heat exchanger 61. The other of the connection pipes 74 connects the outdoor pipe 73 connected to the fourth port 13D of the four-way switching valve 13 and the other indoor pipe 72 connected to the indoor heat exchanger 61 to each other.

  The configuration of the outdoor unit 10 will be described with reference to FIGS. 2 and 3. The direction in the outdoor unit 10 is defined as shown in FIG. In FIG. 2 and subsequent figures, the direction of the outdoor unit 10 is the same as the direction shown in FIG.

  As illustrated in FIG. 2, the outdoor unit 10 includes a case 20 as a housing. The case 20 includes a bottom plate 21 as a base, a side plate 22 attached to the peripheral portion of the bottom plate 21, a top plate 23 attached to the upper end portion of the side plate 22, and a cover 24 attached to a part of the side plate 22. And have.

  Further, as shown in FIG. 4A, the side plate 22 has an intake port 22A, an exhaust port 22B, and an intake port 25. The intake port 22 </ b> A is an opening that takes in outside air toward the outdoor heat exchanger 14 during operation of the outdoor blower 15, and is formed on the left side and the back side of the side plate 22. The exhaust port 22 </ b> B is an opening that blows outside air heat-exchanged by the outdoor heat exchanger 14 during operation of the outdoor fan 15 to the outside of the front side of the outdoor unit 10, and is formed in the front side portion of the side plate 22. Has been. The suction port 25 serves as both an opening for introducing the connection pipe 74 into the outdoor unit 10 and an opening for sucking outside air for cooling the electrical component 40 during operation of the outdoor unit 10. As shown in FIGS. 4A and 4B, the suction port 25 is formed at the lower end of the front side of the right side plate 22.

  As can be seen from FIG. 3, the compressor 11, the oil separator 12, the four-way switching valve 13, the outdoor heat exchanger 14, the outdoor blower 15, the expansion valve 16, the accumulator 17, and the electrical component 40 are contained in the case 20. Be contained.

As shown in FIGS. 3 and 4, the outdoor unit 10 includes a partition plate 30 that partitions the space in the outdoor unit 10 into an air chamber 26 and a machine chamber 27.
The outdoor heat exchanger 14 and the outdoor blower 15 are disposed in the air chamber 26.

  The outdoor fan 15 includes a propeller-type impeller 15A, a bell mouth 15B (see FIG. 4A), a drive motor 15C (see FIG. 3), and the like. Two outdoor blowers 15 are arranged in the vertical direction on one surface of the front surface of the air chamber 26. The outdoor heat exchanger 14 is formed in an L shape in plan view. The outdoor heat exchanger 14 is located in the air chamber 26 from the left side portion of the side plate 22 to the back side portion.

The compressor 11, the oil separator 12, the four-way switching valve 13, the expansion valve 16, the accumulator 17, and the electrical component 40 are disposed in the machine room 27.
The compressor 11 is disposed on the lower side in the machine room 27. The oil separator 12 is disposed at a position adjacent to the compressor 11 in the left-right direction and the depth direction. The expansion valve 16 is disposed on the right side of the compressor 11. The accumulator 17 is disposed on the back side of the compressor 11 and on the right side of the right end portion 14 </ b> A of the outdoor heat exchanger 14. The four-way switching valve 13 is disposed above the accumulator 17. The electrical component 40 is disposed above the compressor 11, the oil separator 12, and the suction port 25 (see FIG. 2).

  The electrical component 40 includes a control circuit 50 that controls operations of the compressor 11, the four-way switching valve 13, the outdoor fan 15, and the expansion valve 16, and a circuit board holding member 41 that holds the control circuit 50. The circuit board holding member 41 has one end fixed to the partition plate 30 and the other end fixed to the side plate 22.

  The control circuit 50 includes a flat circuit board 51, a power element (not shown) that constitutes an inverter circuit that controls energization of each device, a coil 52 and a capacitor 53 that remove noise, and heat of the power element. And a heat transfer member 54 for radiating heat. The power element, the coil 52, the capacitor 53, and the heat transfer member 54 are attached to the front surface of the circuit board 51. The power element is located between the front surface of the circuit board 51 and the heat transfer member 54.

  A part of the outdoor pipe 73 is in contact with the front surface of the heat transfer member 54. A part of the outdoor pipe 73 is formed in a U shape. A part of the front side of the outdoor pipe 73 is covered with a cover member 42. The cover member 42 is fixed to the heat transfer member 54 with bolts (not shown).

  When the power element generates heat by driving the compressor 11 and the outdoor fan 15, the heat of the power element is radiated to the heat transfer member 54. Thereby, the heat transfer member 54 is heated. At this time, the heat transfer member 54 is cooled by the refrigerant flowing in a part of the outdoor pipe 73. For this reason, it is suppressed that the efficiency which the heat | fever of a power element thermally radiates to the heat-transfer member 54 falls.

  The partition plate 30 includes a front side attachment portion 31 attached to the case 20, a rear side attachment portion 32 attached to the right end portion 14 </ b> A of the outdoor heat exchanger 14, a front side attachment portion 31, and a rear side attachment portion 32. And a discharge port 34 communicating the air chamber 26 and the machine chamber 27 with each other. The front side attachment portion 31 is formed at the front side end of the partition plate 30. The back side mounting portion 32 is formed on the back side and the right end portion of the partition plate 30. Twelve louvers 35 are formed in the discharge port 34.

  The main body portion 33 is bent so that the back side has a protruding shape from the front side attachment portion 31 toward the back side attachment portion 32. As shown in FIG. 3, the main body 33 has a first main body 33 </ b> A, a second main body 33 </ b> B, a third main body 33 </ b> C, and a fourth main body 33 in order from the front surface mounting portion 31 toward the rear surface mounting portion 32. It has a main body 33D. The front side mounting portion 31, the back side mounting portion 32, the first main body portion 33A, the second main body portion 33B, the third main body portion 33C, and the fourth main body portion 33D are formed of a single plate-like member.

  33 A of 1st main-body parts are formed in the linear form which inclines to the left side as it goes to the back side in planar view. The second main body portion 33B is formed in a linear shape that inclines to the right as it goes to the back side in plan view. The third main body 33C is formed in a curved shape that inclines to the right as it goes to the back side in plan view. The fourth main body portion 33D is formed in a linear shape that inclines to the right side toward the back side in plan view. The fourth main body portion 33D has a smaller acute angle with the left-right direction than the second main body portion 33B and the third main body portion 33C. The fourth main body portion 33D is located on the back side with respect to the electrical component 40 via a gap.

With reference to FIGS. 4-6, the structure of the discharge port 34 is demonstrated.
As shown in FIG. 4, the side surface (hereinafter referred to as “side surface”) of the main body portion 33 from the rearmost portion of the right end portion of the impeller 15 </ b> A of the outdoor fan 15 in a plan view of the outdoor unit 10. 33E ") is referred to as" tangent SL ".

  The discharge port 34 is a portion farther from the outdoor fan 15 than the contact position CP between the tangent line SL and the side surface 33E of the main body 33 in the fourth main body 33D of the main body 33 in a plan view of the outdoor unit 10, that is, the contact. It is located in the fourth main body portion 33D on the right side of the position CP. Moreover, the discharge port 34 is located above the electrical component 40 (see FIG. 3 and FIG. 4B).

  The discharge port 34 is located in a portion corresponding to the right end portion 14 </ b> A of the outdoor heat exchanger 14 in the left-right direction in the main body portion 33. Further, the discharge port 34 is close to the right end portion 14A of the outdoor heat exchanger 14 in the depth direction. For this reason, the gap in the depth direction between the right end portion 14A of the outdoor heat exchanger 14 and the discharge port 34 is larger than the gap in the depth direction between the other portion of the main body portion 33 and the right end portion 14A of the outdoor heat exchanger 14. Is also small.

  As shown in FIGS. 5 and 6, the discharge port 34 has 12 opening portions 34 </ b> A that open to the machine room 27 side by 12 louvers 35. The opening portions 34A are arranged in the vertical direction. Each louver 35 has a shape that is cut and raised so that the lower side is connected to the fourth main body portion 33D by press working (see FIG. 6). Each opening portion 34 </ b> A has a long hole shape in which the dimension in the left-right direction is larger than the dimension in the depth direction. Further, the discharge port 34 is formed with twelve through holes 34 </ b> B that penetrate the partition plate 30. The through hole 34B has a long hole shape in which the dimension in the left-right direction is larger than the dimension in the vertical direction. The opening portion 34A and the through hole 34B communicate with each other.

  Each louver 35 is inclined to the front side (that is, the machine room 27 side) as it goes upward. For this reason, each louver 35 is located on the machine room 27 side. For this reason, in the discharge port 34, the opening direction of the opening portion 34A on the machine chamber 27 side is the upper side.

The cooling operation and heating operation of the air conditioner 1 will be described with reference to FIG.
When the air conditioner 1 is in the cooling operation, the four-way switching valve 13 is switched to the first state (solid line state in FIG. 1). The high-pressure refrigerant compressed in the compressor 11 flows into the outdoor heat exchanger 14 via the four-way switching valve 13 after the oil component is separated in the oil separator 12.

  The refrigerant flowing into the outdoor heat exchanger 14 is condensed by exchanging heat with the outside air in the outdoor heat exchanger 14, and becomes a liquid refrigerant. This liquid refrigerant passes through a portion of the outdoor pipe 73 that contacts the heat transfer member 54. Thereby, the heat transfer member 54 is cooled. Then, the liquid refrigerant flows into the expansion valve 16.

The liquid refrigerant that has flowed into the expansion valve 16 is decompressed by the expansion valve 16. Then, the liquid refrigerant decompressed by the expansion valve 16 flows into the indoor heat exchanger 61.
The low-pressure liquid refrigerant flowing into the indoor heat exchanger 61 exchanges heat with indoor air in the indoor heat exchanger 61. The refrigerant that has exchanged heat with the room air is heated and vaporized to cool the room air. The cooled room air is blown into the room by the room blower 62 to cool the room.

  The refrigerant vaporized by the indoor heat exchanger 61 flows into the accumulator 17 via the four-way switching valve 13. The refrigerant flowing into the accumulator 17 is gas-liquid separated by the accumulator 17. The gas refrigerant separated from the gas and liquid flows into the compressor 11.

  When the air conditioner 1 is in the heating operation, the four-way switching valve 13 is switched to the second state (the state of the broken line in FIG. 1). The refrigerant compressed in the compressor 11 is separated in the oil separator 12 and then flows into the indoor heat exchanger 61 via the four-way switching valve 13.

  The refrigerant flowing into the indoor heat exchanger 61 exchanges heat with room air in the indoor heat exchanger 61. The refrigerant that has exchanged heat with the room air is condensed and liquefied to heat the room air. The heated room air is blown into the room by the room blower 62 to heat the room.

  This liquid refrigerant flows into the expansion valve 16. The liquid refrigerant that has flowed into the expansion valve 16 is decompressed by the expansion valve 16. The low-pressure liquid refrigerant decompressed by the expansion valve 16 passes through a portion of the outdoor pipe 73 that contacts the heat transfer member 54. Thereby, the heat transfer member 54 is cooled. Then, the liquid refrigerant flows into the outdoor heat exchanger 14.

  The low-pressure liquid refrigerant that has flowed into the outdoor heat exchanger 14 is heated and vaporized by heat exchange with the outside air in the outdoor heat exchanger 14. The refrigerant vaporized in the outdoor heat exchanger 14 flows into the accumulator 17 via the four-way switching valve 13. The refrigerant flowing into the accumulator 17 is gas-liquid separated by the accumulator 17. The gas refrigerant separated from the gas and liquid flows into the compressor 11.

The operation of the outdoor unit 10 will be described with reference to FIGS. 4 and 6.
As shown in FIG. 4, when the outdoor blower 15 is driven in the cooling operation and the heating operation of the air conditioner 1, the air on the back side of the outdoor blower 15 in the air chamber 26 is more than the outdoor blower 15. Blow out toward the front. For this reason, in the air chamber 26, the pressure (static pressure) in the space on the back side of the outdoor blower 15 decreases, so that the outside air flows into the air chamber 26 through the intake port 22 </ b> A of the case 20. The inflowing outside air is heat-exchanged by the outdoor heat exchanger 14 and blown out from the outdoor blower 15 to the outside on the front side of the case 20 through the exhaust port 22B of the case 20 (see FIG. 2). For this reason, in the air chamber 26, an air flow from the back side toward the front side is formed.

  Along with the air flow, the negative pressure is generated in the air chamber 26, that is, the suction side of the outdoor fan 15. For this reason, a flow of outside air is formed via the suction port 25, the machine room 27, and the discharge port 34. That is, the outside air is taken into the machine chamber 27 through the suction port 25, and the outside air taken into the machine chamber 27 is discharged into the air chamber 26 through the discharge port 34. As a result, in the machine room 27, the electrical component 40 arranged so as to be positioned between the suction port 25 and the discharge port 34 is cooled by the flow of outside air from the suction port 25 toward the discharge port 34. .

  As shown in FIG. 6, the air in the machine room 27 flows into the discharge port 34 from above the discharge port 34. For this reason, air in the vicinity of the discharge port 34 in the machine room 27 causes convection. Thereby, it is suppressed that the air above the electrical component 40 (refer FIG. 4) in the machine room 27, ie, the air heated by the electrical component 40, retains. For this reason, the whole air heated by the electrical component 40 tends to flow into the discharge port 34.

  Moreover, in the machine room 27, since the electrical component 40 is arrange | positioned below the discharge port 34, the external air heated by the electrical component 40 tends to flow upwards. Therefore, a smooth flow of outside air from the suction port 25 to the discharge port 34 via the electrical component 40 is formed.

  By the way, when it is a strong wind with rain and the operation of the air conditioner 1 is stopped, the outdoor fan 15 is rotated by the outside air flowing in through the exhaust port 22B or the intake port 22A of the case 20. At this time, the rotational speed of the outdoor blower 15 by the outside air may be larger than the rotational speed of the outdoor blower 15 during the cooling operation and the heating operation of the air conditioner 1. Further, rain (water droplets) enters the air chamber 26 via the exhaust port 22B or the intake port 22A of the case 20. When the water droplets adhere to the impeller 15 </ b> A (see FIG. 4) of the outdoor fan 15, the water droplets are scattered outward in the radial direction of the outdoor fan 15 as the outdoor fan 15 rotates.

  Therefore, in order to protect the electrical component 40, it is necessary to consider that water droplets scattered from the impeller 15 </ b> A of the outdoor fan 15 do not splash toward the discharge port 34. For this reason, in this embodiment, the position of the discharge port 34 is set so that water droplets scattered from the impeller 15 </ b> A of the outdoor fan 15 are not scattered toward the discharge port 34. That is, the position of the discharge port 34 is set to a portion on the right side of the contact position CP of the tangent line SL in the main body portion 33 of the partition plate 30.

  As can be seen from FIG. 4, the portion on the right side of the contact position CP of the tangent SL cannot be connected to any portion of the impeller 15 </ b> A of the outdoor fan 15 by a straight line through the space. As a result, water droplets that scatter as the outdoor blower 15 rotates do not scatter directly to the discharge port 34. In other words, the splashing range of water droplets splashing directly toward the partition plate 30 by the rotation of the outdoor blower 15 is tangent SL, the partition plate 30, and the outdoor blower, as indicated by the dashed line in FIG. 15 is an area surrounded by 15.

  In addition, the water droplets scattered with the rotation of the outdoor fan 15 bounce off any part of the blowout side of the outdoor heat exchanger 14 and splash toward the discharge port 34, or through the outdoor heat exchanger 14. It is conceivable that water droplets from the outside fly toward the discharge port 34. However, in this case, as shown in FIG. 6, water droplets that have entered the through hole 34 </ b> B of the discharge port 34 collide with and adhere to the louver 35. Then, the water droplet flows along the louver 35 toward the side surface 33E of the main body 33 of the partition plate 30 and falls downward. For this reason, it is avoided that water drops enter the machine room 27.

  Even if water droplets may be scattered into the machine room 27 via the opening part 34A on the machine chamber 27 side of the discharge port 34, the opening part 34A on the machine room 27 side of the discharge port 34 faces upward. It is formed so as not to open toward the electrical component 40. For this reason, it is avoided that water droplets are directly scattered toward the electrical component 40.

The outdoor unit 10 of this embodiment has the following effects.
(1) The discharge port 34 is located on the partition plate 30 on the right side of the contact position CP between the tangent SL and the partition plate 30. According to this configuration, compared to a configuration in which the discharge port 34 is formed on the partition plate 30 on the left side of the contact position CP, that is, on the side closer to the outdoor fan 15, water droplets scattered by the rotation of the outdoor fan 15 are directly generated. Therefore, scattering to the discharge port 34 is suppressed. Further, for example, when water droplets scattered by the rotation of the outdoor blower 15 bounce back to the outdoor heat exchanger 14 and enter the discharge port 34, the water droplets adhere to the louver 35, so the water droplets enter the machine room 27. Intrusion is suppressed.

  In addition, since the static pressure of the air chamber 26 becomes lower than the static pressure of the machine chamber 27 when the outdoor fan 15 is rotated, outside air flows into the machine chamber 27 from the suction port 25 through the suction port 25 and the discharge port 34. Thus, an air flow path is formed through the discharge port 34 to flow out from the machine chamber 27 to the air chamber 26. For this reason, the electrical component 40 is air-cooled.

  (2) The discharge port 34 is provided with a plurality of louvers 35. According to this configuration, compared to a configuration in which one louver 35 is provided at the discharge port 34, the opening area of each through hole 34 </ b> B between adjacent louvers 35 at the discharge port 34 can be reduced. Thereby, it is possible to suppress small animals and insects from entering the machine room 27.

  (3) Each louver 35 is formed by cutting and raising the partition plate 30 toward the machine room 27 side. According to the above configuration, since each louver 35 is cut and raised with the partition plate 30 toward the machine room 27, it is possible to suppress contact between the louver 35 and the outdoor heat exchanger 14 when the outdoor unit 10 is assembled. it can.

  In addition, in order to form each louver 35 by cutting and raising the partition plate 30, compared to a configuration in which a through hole is formed in the partition plate and a louver as a member different from the partition plate is attached to the partition plate, The number of parts for forming the outlet 34 is reduced.

  (4) The opening direction of the opening portion 34 </ b> A on the machine room 27 side of the discharge port 34 does not face the electrical component 40. According to this configuration, when water droplets pass through the discharge port 34, the water droplets are scattered into the machine chamber 27 along the opening direction of the opening portion 34 </ b> A on the machine chamber 27 side of the discharge port 34. For this reason, the water droplets are scattered at a position different from the position where the electrical component 40 is disposed. Therefore, even if the water droplets are scattered in the machine room 27, the water droplets are prevented from adhering to the electrical component 40.

  (5) The discharge port 34 is close to the right end portion 14 </ b> A of the outdoor heat exchanger 14. According to this configuration, the discharge port 34 can be separated as far as possible from the outdoor fan 15. Thereby, it is suppressed that the water droplet which splashes from the impeller 15A of the outdoor fan 15 at the time of the strong wind accompanied by rain splashes directly to the discharge port 34. For this reason, the penetration | invasion of the water drop into the machine room 27 in which the electrical component 40 is arrange | positioned is suppressed more.

The outdoor unit of the refrigeration apparatus of the present invention is not limited to the above embodiment, and the following modifications are possible. In the following modification examples, different modification examples may be combined with each other.
-Although the 12 louvers 35 are provided in the discharge port 34 of the said embodiment, the number of louvers 35 is not limited. The number of louvers 35 may be one or more.

  -Although each through-hole 34B of the discharge port 34 of the said embodiment is formed in the long hole shape where the dimension of the left-right direction is larger than the dimension of an up-down direction, the shape of each discharge port 34 is not limited to this. For example, each discharge port 34 can also be formed in the shape of a long hole whose vertical dimension is larger than the horizontal dimension.

  -Although the louver 35 of the said embodiment is arranged in the up-down direction, the arrangement | sequence of the louver 35 is not limited to this. For example, the louvers 35 can be arranged in the left-right direction. Further, the louver 35 can be combined with a horizontal arrangement and a vertical arrangement.

  -Although the opening direction of 34 A of opening parts by the side of the machine room 27 of the discharge port 34 of the said embodiment is an upper side, the opening direction is not limited to this. The opening direction of the opening portion 34A on the machine chamber 27 side of the discharge port 34 may be at least one of the lower side, the right side, and the left side.

-In each louver 35 of the said embodiment, it can also be located in the air chamber 26 side.
-Although the louver 35 of the said embodiment is formed by raising the main-body part 33 of the partition plate 30 by press work, the formation method of the louver 35 is not limited to this. For example, the louver 35 may be a separate member from the main body 33 and the louver 35 may be fixed to the main body 33.

  -Although the main-body part 33 of the partition plate 30 of the said embodiment is formed of four site | parts of 1st main-body part 33A-4th main-body part 33D, the main-body part 33 has 3 or less site | parts and 5 pieces. It can also be formed by the above parts. When the main body 33 is a single part, the main body 33 is formed in a curved shape in plan view.

  In the partition plate 30 of the above embodiment, the first main body portion 33A, the second main body portion 33B, and the fourth main body portion 33D of the main body portion 33 can be formed in a curved shape in plan view. In addition, the third main body portion 33C can be formed linearly in plan view.

  -Although the partition plate 30 of the said embodiment is bent so that the whole main-body part 33 may make a protrusion shape toward the back side, the shape of the main-body part 33 of the partition plate 30 is not restricted to this. For example, as shown in FIG. 7, a part of the main body 33 can be bent so as to project toward the back side.

  CP ... contact position, SL ... tangent, 10 ... outdoor unit, 11 ... compressor, 14 ... outdoor heat exchanger (heat exchanger), 15 ... outdoor fan (axial fan), 15A ... impeller, 25 ... Suction port, 26 ... air chamber, 27 ... machine room, 30 ... partition plate, 34 ... discharge port, 34A ... opening, 35 ... louver, 40 ... electrical component.

Claims (5)

An air chamber (26) in which an axial blower (15) and a heat exchanger (14) are housed, a machine room (27) in which a compressor (11) and electrical equipment (40) are housed, and the air chamber ( 26) and an outdoor unit of a refrigeration apparatus including a partition plate (30) that partitions the machine room (27),
The axial blower (15) is arranged to blow outward on one surface of the air chamber (26),
The heat exchanger (14) is disposed on the back side of the air chamber (26) when one surface of the air chamber (26) from which the air blown from the axial blower (15) is discharged is the front surface. ,
The partition plate (30) protrudes from the side of the axial flow fan (15) toward the side end (14A) of the heat exchanger (14) at least partially on the back side. Formed into
The machine room (27) is provided at a lower position than the electrical component (40), and is provided at a position above the electrical component (40) and a suction port (25) for taking outside air from outside the machine. And an outlet (34) for discharging the air after cooling the electrical component (40) to the air chamber (26) side,
The discharge port (34) is formed in the partition plate (30) and has a louver (35),
Furthermore, the said discharge port (34) makes the protrusion of the said partition plate from the point located in the said back side most in the side edge part of the impeller (15A) of the said axial flow fan (15) in planar view. A tangent line (SL) is drawn with respect to the portion, and the tangent line (SL) and the partition plate (30) are formed so as to be positioned on the outer side in the left-right direction with respect to the contact position (CP). Refrigeration equipment outdoor unit. In the outdoor unit of the refrigeration apparatus according to claim 1,
A plurality of the louvers (35) are provided in the discharge port (34). In the outdoor unit of the refrigeration apparatus according to claim 1 or 2,
The louver (35) is formed by cutting and raising the partition plate (30) toward the machine room (27). In the outdoor unit of the refrigeration apparatus according to claim 3,
The outdoor unit of the refrigeration apparatus, wherein the opening direction (34A) of the opening part (34A) on the machine room (27) side formed by the louver (35) does not face the electrical component (40). In the outdoor unit of the refrigeration apparatus according to any one of claims 1 to 4,
The said partition plate (30) is formed so that the said discharge port (34) may adjoin to the said heat exchanger (14) in planar view. The outdoor unit of the freezing apparatus characterized by the above-mentioned.