JPWO2014167642A1 - Outdoor unit and air conditioner - Google Patents

Abstract

A casing 1 having a suction port 6 and a blowout port 2, an outdoor heat exchanger 7 that performs heat exchange between the refrigerant and air in the casing 1, a rotatable blade, and the outdoor heat exchanger 7 from the suction port 6. An outdoor fan 4 that forms a flow of air that passes through the air outlet 2 and a motor support 30 that is provided on the downstream side of the outdoor heat exchanger 7 in the air flow direction and supports the outdoor fan 4. The outdoor heat exchanger 7 is arranged such that the heat exchangers 7a to 7d, which are a plurality of heat exchangers, have a substantially wave shape or a substantially zigzag shape when the outdoor heat exchanger 7 is viewed in horizontal or vertical cross section. The motor support 30 includes a plurality of support columns 30a fixed in the casing 1 so as to be orthogonal to the air flow, and a plurality of support columns 30a. To the column 30a And a support portion 30b which is fixed to support the outdoor fans 4, the plurality of struts 30a, the bent portion 40 is provided to expand the distance between the blades 4a.

Description

  The present invention relates to an outdoor unit installed on the outdoor side in a refrigeration cycle apparatus, for example.

  In an air conditioner or the like, an outdoor unit installed on the outdoor side includes, for example, an outdoor heat exchanger, a fan that supplies air to the outdoor heat exchanger, a compressor that compresses refrigerant, a box-shaped casing (housing). Various things that are mounted on the body have been proposed. The outdoor unit is connected to the indoor unit in which the indoor heat exchanger is mounted via the refrigerant pipe, and the refrigerant can be supplied from the outdoor unit to the indoor heat exchanger of the indoor unit to cool and heat the air-conditioning target space. It is said.

  In order to improve the amount of heat exchange between the air and the refrigerant in the outdoor heat exchanger, such an outdoor unit of the conventional air conditioner is proposed in which the mounting volume of the outdoor heat exchanger in the casing is increased. (For example, refer to Patent Document 1).

  For example, in the technique described in Patent Document 1, the casing is configured so as to communicate the inside and outside of the casing with respect to a plurality of the side surfaces of the casing, and the shape along the plurality of surfaces (the shape in a horizontal cross-sectional view) Is a substantially M-shaped) outdoor heat exchanger.

JP 2000-55409 A (see, for example, FIGS. 1 and 4)

  In the outdoor unit described in Patent Document 1, as another method for increasing the heat exchange amount of the outdoor heat exchanger without increasing the unit size, for example, the air flow of the fins that becomes the “thickness” of the outdoor heat exchanger A method of increasing the mounting volume of the outdoor heat exchanger by increasing the width in the direction parallel to the direction is conceivable.

  However, since the temperature difference between the air and the refrigerant becomes smaller toward the downstream side in the air flow direction of the outdoor heat exchanger, the heat exchange efficiency decreases as the thickness increases, and as a result, the increase in heat exchange cannot be expected as much. there is a possibility.

  Further, the ventilation resistance and fan input of the outdoor heat exchanger increase in proportion to the thickness of the outdoor heat exchanger. For this reason, even if the mounting volume is increased by increasing the thickness of the outdoor heat exchanger, the amount of heat exchange decreases to the extent that the ventilation resistance increases, and the amount of heat exchange that can be commensurate with the increased thickness. There is a possibility that increase cannot be expected.

  Here, a method of increasing the fan input can be considered corresponding to the increase in the ventilation resistance when the thickness of the outdoor heat exchanger is increased. However, if the speed of the air passing through the outdoor heat exchanger is increased, the ventilation resistance increases, so it is necessary to further increase the fan input, which may increase the power consumption of the outdoor unit. was there.

  The present invention has been made in order to solve the above-described problems. An outdoor unit and an air that realize “to increase the heat exchange amount of the outdoor heat exchanger more efficiently with respect to the size of the casing”. It aims to provide a harmony device.

  An outdoor unit according to the present invention includes a casing having an inlet and an outlet, an outdoor heat exchanger that performs heat exchange between the refrigerant and air in the casing, and an outlet that passes through the outdoor heat exchanger from the inlet. An outdoor fan that forms an air flow to the air and a motor support that is provided downstream of the outdoor heat exchanger in the air flow and supports the outdoor fan. The outdoor heat exchanger horizontally connects the outdoor heat exchanger. When viewed in cross-section or vertical cross-section, a heat exchange section that is a plurality of heat exchangers is arranged in a wave shape or a zigzag shape, and has a connection section that pipe-connects between adjacent heat exchange sections The motor support includes a plurality of support posts that are fixed in the casing so as to be orthogonal to the air flow, and a support portion that is fixed to the support posts and supports the outdoor fan. There are outdoor fans That is one having a bent portion to expand the distance between the blades.

  According to the outdoor unit according to the present invention, the plurality of heat exchanging portions are arranged in a wave shape or zigzag shape, and the bent portions are provided in the plurality of support posts in order to ensure the distance from the blades of the outdoor fan. Noise suppression and increase in air volume can be achieved. As a result, “the heat exchange amount of the outdoor heat exchanger can be increased with high efficiency with respect to the casing size”.

It is FIG. (1) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is FIG. (2) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is FIG. (3) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is FIG. (4) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is FIG. (5) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is a schematic diagram of the fan motor 5 and the motor support 30 according to the first embodiment of the present invention. It is an enlarged view (the 1) which shows the positional relationship of the outdoor fan 4 and the motor support 30. FIG. It is an enlarged view (the 2) which shows the positional relationship of the outdoor fan 4 and the motor support 30. FIG. FIG. 6 is a diagram (part 1) illustrating a modification of the first embodiment; FIG. 10 is a diagram (No. 2) illustrating a modification of the first embodiment. FIG. 10 is a diagram (No. 3) illustrating a modification of the first embodiment. FIG. 10 is a diagram (No. 1) showing another example of the modification according to the first embodiment; FIG. 11 is a diagram (No. 2) showing another example of the modification according to the first embodiment; It is FIG. (1) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 2 of this invention. It is FIG. (2) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 2 of this invention. It is FIG. (1) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 3 of this invention. It is FIG. (2) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 3 of this invention. It is FIG. (1) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 4 of this invention. It is FIG. (2) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 4 of this invention. It is FIG. (The 3) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 4 of this invention. It is FIG. (1) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 5 of this invention. It is FIG. (2) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 5 of this invention. It is FIG. (1) which shows the schematic structural example of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 6 of this invention. It is FIG. (2) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 6 of this invention. It is FIG. (1) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 7 of this invention. It is FIG. (2) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 7 of this invention. It is FIG. (The 3) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 7 of this invention. It is FIG. (4) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 7 of this invention. It is FIG. (5) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 7 of this invention. It is a schematic diagram of the fan motor 5 and the motor support 30 according to the first embodiment of the present invention. It is FIG. (1) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 8 of this invention. It is FIG. (2) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 8 of this invention. It is FIG. (3) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 8 of this invention. It is FIG. (4) which shows the example of a schematic structure of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 8 of this invention. It is FIG. (1) which shows the modification of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 8. FIG. It is FIG. (2) which shows the modification of the outdoor unit 50 of the air conditioning apparatus which concerns on Embodiment 8. FIG. It is a block diagram of the air conditioning apparatus which concerns on Embodiment 9 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, in FIG. 1 and the following drawings, the same reference numerals denote the same or corresponding parts, and are common to the whole text of the embodiments described below. And the form of the component represented by the whole specification is an illustration to the last, Comprising: It does not limit to the form described in the specification. Further, “vertical direction (vertical)” indicates a substantially vertical direction, and does not indicate a direction that exactly matches the direction of gravity, but may be slightly inclined from the direction of gravity. is there. Further, “horizontal direction (horizontal)” indicates that the direction is substantially horizontal, and does not indicate a direction that exactly coincides with the direction that intersects with gravity at right angles, but is slightly different from the direction that intersects with gravity at right angles. It can be tilted.

Embodiment 1 FIG.
The outdoor unit 50 of the air-conditioning apparatus according to Embodiment 1 is obtained by improving the outdoor heat exchanger 7 and the motor support 30 mounted in the outdoor unit 50. And the amount of heat exchange of an outdoor heat exchanger can be increased with high efficiency, without enlarging the size of a casing.

[Description of configuration]
1A to 1E are diagrams showing a schematic configuration example of the outdoor unit 50 of the air-conditioning apparatus according to Embodiment 1 of the present invention. FIG. 1A is a front view of the outdoor unit 50. 1B is a cross-sectional view taken along the line AA in FIG. 1A. FIG. 1C is a rear view of the outdoor unit 50 (viewed from the suction port 6 side). FIG. 1D is a left side view. FIG. 1E is a cross-sectional view taken along the line BB of FIG. 1B. Here, the arrows shown in FIG. 1B indicate the flow of air flowing through the outdoor unit 50. Moreover, in the following drawings including FIG. 1A to FIG. 1E, in order to make the configuration in the casing 1 easy to see, portions that are not originally visible from the appearance may be illustrated.

  The outdoor unit 50 of the present embodiment includes a compressor 9 that compresses refrigerant, an outdoor fan 4 that blows air, and a motor support 30 that fixes the outdoor fan 4 in a casing 1 that is an outer shell. The outdoor heat exchanger 7 functions as a condenser during cooling operation and functions as an evaporator during heating operation. A partition plate 8 divides the outdoor heat exchanger 7 and the outdoor fan 4 side from the compressor 9 side.

<Casing 1>
The casing 1 is a housing that forms a box-shaped outer shell having a suction port 6 for taking in air outside the outdoor unit 50 and a blowout port 2 for releasing air from the outdoor unit 50. In the casing 1, an air passage is formed in which the air flowing in from the suction port 6 flows through the outdoor heat exchanger 7 and the outdoor fan 4 to the outlet 2 when the outdoor fan 4 is driven.

  The casing 1 includes, for example, a base plate 1a, a front panel 1b, a side panel 1c, a rear panel 1e, and a top plate 1d.

  The base plate 1 a is a plate that constitutes an outer surface of the casing 1 on the lower surface side (bottom surface side). An outdoor heat exchanger 7, a compressor 9, and a motor support 30 are fixed on the base plate 1a. A partition plate 8 is erected on the base plate 1a. The partition plate 8 has a space on the side of the outdoor heat exchanger 7 and the outdoor fan 4 through which air released after being taken into the casing 1 flows, and a space (machine room 10) on the side where the compressor 9 and the like are provided. It is partitioned.

  The front panel 1b is a panel that constitutes an outer shell on the side (front side) of the casing 1 where the outdoor fan 4 is provided. An air outlet 2 is formed in the front panel 1b. An outdoor fan 4 is attached via a motor support 30 to the front outer wall of the front panel 1 b and at the position where the air outlet 2 is formed. Here, the formation position of the blower outlet 2 and the attachment position of the outdoor fan 4 are opposed. Further, the front panel 1b has a bell mouth 3 formed to protrude from the air outlet 2 side toward the suction port 6 side on the peripheral side of the opening portion of the air outlet 2.

  The side panel 1c is a panel that forms an outer shell on the side surface of the casing 1 substantially perpendicular to the front panel 1b. One side panel 1c is provided on the outdoor heat exchanger 7 side, and the other is provided on the compressor 9 side. The rear panel 1e is provided on the surface side (back side) facing the front panel 1b, and constitutes the machine room 10 together with the side panel 1c provided on the compressor 9 side.

  The top plate 1 d constitutes the outer shell on the upper surface side of the casing 1. The top plate 1d is fixed to, for example, the upper end side of the front panel 1b, the upper end side of the side panel 1c, the upper end side of the rear panel 1e, and the like. Here, the casing 1 is open on the back side facing the upstream surface of the outdoor heat exchanger 7, and this open portion constitutes the suction port 6.

<Compressor 9>
The compressor 9 compresses and discharges the refrigerant. The compressor 9 is provided in the machine room 10 which is a space on the base plate 1 a and opposite to the outdoor heat exchanger 7 and the outdoor fan 4 side via the partition plate 8.

<Outdoor fan 4>
The outdoor fan 4 forcibly takes in air into the casing 1 through the suction port 6 and forms a flow in which the taken-in air passes through the outdoor heat exchanger 7 and is discharged from the outlet 2. . The outdoor fan 4 is connected to the boss 4b via an impeller having a boss 4b and a plurality of blades 4a protruding from the outer periphery of the boss 4b and a shaft 5a shown in FIG. 2 to be described later, and rotates the impeller. And a fan motor 5.

  The boss 4b is a substantially disk (column) -shaped member, and at least a part of the fan motor 5 enters the internal space. The boss 4b is connected to the shaft 5a, rotates with the rotation of the shaft 5a, and rotates the blade 4a. The blades 4a are connected to the peripheral side of the substantially disc-shaped boss 4b, and rotate around the rotation axis as the boss 4b rotates.

  The fan motor 5 includes a stator around which a coil (not shown) is wound, a rotor that is rotated by the stator, and the like. By rotating the shaft 5a, the blades 4a are rotated, and air can be taken into and released from the casing 1.

  One end of a shaft 5 a is connected to the rotor of the fan motor 5. A motor support 30 is provided on the upstream side of the fan motor 5 in the air flow direction, and the outdoor fan 4 is fixed by a support 30a and a support 30b described later. The shaft 5a is a rod-shaped member having one end connected to the fan motor 5 and the other connected to the boss 4b. The rotation of the rotor of the fan motor 5 is transmitted to the boss 4b and the blade 4a.

  The outdoor fan 4 may be an axial fan, for example. Further, the width of the blade 4a in the direction parallel to the rotation axis may be narrowed and the number of blades 4a may be increased. For example, the number of blades, which is conventionally 3 to 4, may be 5 or more. Thereby, space can be saved while ensuring the capability of the outdoor fan 4 to supply air to the outdoor heat exchanger 7, and the space where the outdoor heat exchanger 7 can be installed can be expanded. . Therefore, the mounting volume of the outdoor heat exchanger 7 can be increased as much as the space on the outdoor fan 4 side can be divided into the outdoor heat exchanger 7. And the heat exchange amount of the outdoor heat exchanger 7 can be increased with high efficiency, without enlarging the size of the casing 1.

<Outdoor heat exchanger 7>
The outdoor heat exchanger 7 has four heat exchange units 7a to 7d that exchange heat between supplied air and the refrigerant. The heat exchanging parts 7a to 7d are heat exchangers, and are connected by the heat transfer pipe 72 at the connection part (heat transfer pipe bending part 72b described later) to constitute the outdoor heat exchanger 7. In the heat exchange units 7a to 7d of the present embodiment, adjacent heat exchange units are connected by a heat transfer tube 72, and the vertical cross-sectional view has a substantially wave shape (or a zigzag shape. The same applies hereinafter. Is disposed in the casing 1 so as to have a substantially wave shape. By performing such an arrangement, the mounting volume of the outdoor heat exchanger 7 provided in the casing 1 can be increased, and the amount of heat exchange can be increased.

  In addition, the outdoor heat exchanger 7 has an increased ventilation area corresponding to the vertical cross-sectional shape being corrugated. For this reason, the outdoor heat exchanger 7 can suppress the ventilation resistance which increases corresponding to the increase in the mounting volume. Therefore, in the outdoor unit of the present embodiment, the outdoor heat exchanger 7 suppresses the ventilation resistance of the outdoor heat exchanger 7 even if the fan input is increased as the mounting volume of the outdoor heat exchanger 7 increases. The fan input can be reduced as much as possible. Furthermore, although the outdoor heat exchanger 7 has a large mounting volume and a large ventilation area, the shape as viewed in the vertical cross section is a wave shape, and thus is compact (the occupied volume in the casing 1 can be reduced). .

  Thus, in the outdoor heat exchanger 7, since the mounting volume and the ventilation area can be increased without increasing the size of the casing 1, the heat exchange amount of the outdoor heat exchanger 7 is increased with high efficiency. Be able to.

  The heat exchanging portion 7a constitutes the upper end portion side of the outdoor heat exchanger 7, and is downward from the upstream side to the downstream side of the air (for example, the white arrow in FIG. 1E) flowing through the heat exchanging portion 7a. It is provided in the casing 1 so as to be inclined. The heat exchange part 7a is connected to the heat exchange part 7b. Moreover, as for the heat exchange part 7b, the upper end part side is connected to the heat exchange part 7a, and the lower end part side is connected to the heat exchange part 7c. The heat exchange part 7b is provided in the casing 1 so as to be inclined downward from the downstream side toward the upstream side. As for the heat exchange part 7c, the upper end part side is connected to the heat exchange part 7b, and the lower end part side is connected to the heat exchange part 7d. Similarly to the heat exchange unit 7a, the heat exchange unit 7c is provided in the casing 1 so as to be inclined downward from the upstream side to the downstream side of the air flowing through the heat exchange unit 7a (the white arrow in FIG. 1E). ing. 7 d of heat exchange parts comprise the lower end part side of the outdoor heat exchanger 7, and it goes below toward the upstream from the downstream of the air (white arrow of FIG. 1E) which flows through the heat exchange part 7a. It is provided in the casing 1 so as to be inclined. The heat exchange part 7d is connected to the heat exchange part 7c.

Thus, the outdoor heat exchanger 7 arrange | positions the four heat exchange parts 7a-7d which are heat exchangers. And the outdoor heat exchanger 7 is the 1st bending part corresponding to the connection location of the heat exchange part 7a and the heat exchange part 7b, and the 2nd corresponding to the connection location of the heat exchange part 7b and the heat exchange part 7c. And a third bent portion corresponding to a connecting portion between the heat exchanging portion 7c and the heat exchanging portion 7d.
Moreover, the end part side by the side of the outdoor fan 4 of the heat exchange parts 7a-7d is adjoining to the outdoor fan 4, and is arrange | positioned so that the ventilation area of the outdoor heat exchanger 7 may become large enough.

  The heat exchanging parts 7 a to 7 d are composed of a plurality of fins 71 and heat transfer tubes 72. The fins 71 are strip-like plates extending in the direction perpendicular to the plane of the paper (inclined from the vertical direction) in FIG. 1B, and are fixed so that a gap through which air flows is formed along with the heat transfer tubes in the direction parallel to the plane of the paper (horizontal direction). A plurality of layers are stacked in the direction parallel to the paper surface (horizontal direction) with an interval therebetween. For this reason, since the clearance between the fins 71 is parallel to the air flow direction, the air easily moves when passing through the outdoor heat exchanger 7. For this reason, the ventilation resistance of the outdoor heat exchanger 7 can be further reduced, and the fan input can be reduced.

<Differences from conventional heat exchanger shapes>
For example, conventionally, there is an outdoor heat exchanger in which a shape viewed in a horizontal cross section is formed in a substantially M shape. For this reason, the fin forms a predetermined angle with respect to the air flow direction. On the other hand, in the outdoor heat exchanger 7 of this Embodiment, it arrange | positions so that the shape seen in the vertical cross section may become a waveform. In FIG. 1B, FIG. 1C, etc., a plurality of fins 71 are stacked in the direction parallel to the plane of the paper (horizontal direction), and the fins 71 are parallel to the air flow direction, so the ventilation resistance of the outdoor heat exchanger 7 can be reduced. And fan input can be reduced.

<Motor support 30>
FIG. 2 is a schematic diagram of the fan motor 5 and the motor support 30 according to the first embodiment of the present invention. The motor support 30 supports the outdoor fan 4 in the casing 1. As shown in FIG. 2, the motor support 30 of the present embodiment includes two support columns 30a and two support portions 30b provided so as to be substantially orthogonal to the support columns 30a. . However, the number is not limited and may be three.

  As shown in FIG. 2, the support post 30a is a linear bar-like member provided so as to extend in a substantially vertical direction from the base plate 1a side to the top plate 1d side of the casing 1, and the outdoor fan 4 via the support portion 30b. The fan motor 5 is supported. The support 30a has a lower end fixed to the base plate 1a and an upper end fixed to the top plate 1d and the like. Moreover, the cross-sectional shape (horizontal cross-sectional shape) of the support | pillar 30a is a substantially square shape, as shown in FIG. Further, the support column 30a has a bent portion 40.

  3A and 3B are enlarged views showing the positional relationship between the outdoor fan 4 and the motor support 30 (enlarged view of FIG. 1E). 3A and 3B, as shown by an arrow A, a portion of the support post 30a that is close to the outer peripheral portion of the blade 4a of the outdoor fan 4 is separated from the blade 4a (so as to be away from the blade 4a), and is kept at a predetermined distance or more. In order to do so, a bent portion 40 is provided. For example, the distance is desirably about 30 mm or more for the outdoor fan 4 having a diameter of 500 mm. If the diameter of the outdoor fan 4 changes, the proportional relationship between the direct φ500 mm and the distance of about 30 mm may be maintained. The blade 4 a tends to be close to the motor support 30 on the outer peripheral side where the rotational speed is increased. And when the motor support 30 adjoins to the rotating blade | wing 4a, the noise resulting from disturbance by the interference of an airflow etc. may generate | occur | produce. Therefore, as in the present embodiment, a bent portion 40 is provided to separate the portion of the motor support 30 that is close to the outer peripheral portion of the blade 4a from the blade 4a (to ensure the distance between the blade 4a and the motor support 30). . Therefore, the generation of noise can be suppressed and the air volume can be increased. As for the arrow B, FIG. 3A shows a case where the bent motor support 30 does not interfere with the end portion of the outdoor heat exchanger 7 on the outdoor fan 4 side with the heat transfer tube bent portion 72b. FIG. 3B shows the case where the bent motor support 30 interferes with the end portion of the outdoor heat exchanger 7 on the outdoor fan 4 side, which interferes with the heat transfer tube bent portion 72b. As shown in FIG. 3B, by arranging the motor support 30 so that the end of the outdoor heat exchanger 7 on the outdoor fan 4 side interferes with the heat transfer tube bent portion 72b, the housing (casing of the outdoor unit 50) is arranged. The compactness of 1) can be achieved.

  4A to 4C are diagrams showing modifications of the first embodiment. In FIG. 4, as shown by an arrow A, two bent portions 40 are provided in the motor support 30 so as to separate the portion of the support column 30a adjacent to the outer peripheral portion of the blade 4a of the outdoor fan 4 from the blade 4a. Is. Even if the position and the number of the bent portions 40 are appropriately set depending on the positional relationship between the motor support 30 and the outer peripheral portion of the blade 4a or the heat transfer tube bent portion 72b of the heat exchanger, the same effect can be obtained. 4A shows a case where the bent motor support 30 does not interfere with the end portion of the outdoor heat exchanger 7 on the side of the outdoor fan 4 on the heat transfer tube bent portion 72b. FIG. 4B shows a case where the bent motor support 30 interferes with the end portion of the outdoor heat exchanger 7 on the outdoor fan 4 side, which interferes with the heat transfer tube bent portion 72b. As shown in FIG. 4B, by arranging the motor support 30 such that the end of the outdoor heat exchanger 7 on the outdoor fan 4 side interferes with the heat transfer tube bent portion 72b, the casing of the outdoor unit can be made compact. it can.

  Moreover, FIG. 4C shows the case where the outdoor heat exchanger 7 is comprised by eight heat exchange parts. FIG. 4C shows a case where the number of rows of heat exchangers is two as an example. Even in the case where the bent portion 40 coincides with the end of the outdoor heat exchanger 7 on the outdoor fan 4 side as in this example, the bent portion 40 is provided in accordance with the heat transfer tube bent portion 72b of the heat exchange portion. The housing can be made compact.

  Here, the cross-sectional shape of the column 30a is not limited to a substantially square shape, and may be, for example, a circle or an ellipse. For example, when an elliptical shape is adopted as the cross-sectional shape of the support column 30a, the support column 30a may be installed in the casing 1 so that its long axis is parallel to the air flow direction. Thereby, the part which the motor support 30 contributes among the ventilation resistance of the air path in the casing 1 can be suppressed. Further, the cross-sectional shape is not limited to a substantially square shape, and the plate may be bent into a substantially U shape.

  Further, as shown in FIG. 2, the support portion 30 b is a linear bar member provided so as to be substantially orthogonal to the support column 30 a and supports the fan motor 5 of the outdoor fan 4. One end side of the support portion 30b is fixed to one support column 30a, and the other end side of the support portion 30b is fixed to the other support portion 30a. Moreover, the cross-sectional shape (vertical cross-sectional shape) of the support part 30b is substantially square shape similarly to the support | pillar 30a. Moreover, the height position of the support part 30b is determined according to the height position of the fan motor 5 provided corresponding to the formation position of the blower outlet 2. FIG. For example, in the first embodiment, since the fan motor 5 is fixed at a substantially central position with respect to the overall height of the support column 30a, the support portion 30b is also fixed at a central position with respect to the overall height of the support column 30a. ing. Here, the center portion is not limited to the center, and has a certain width. The same applies to the following description.

  In FIG. 2, the upper support portion 30 b in FIG. 2 is fixed to the support column 30 a so as to be on the upper side with respect to the shaft 5 a of the outdoor fan 4. 2 is fixed to the column 30a so as to be on the lower side with respect to the shaft 5a. And the fan motor 5 of the outdoor fan 4 is fixed to the center part of the support part 30b. More specifically, the upper side of the fan motor 5 is fixed to the central portion of the support portion 30b on the upper side in FIG. 2, and the lower portion of the support portion 30b in FIG. The side is fixed. For this reason, the air that has passed through the outdoor heat exchanger 7 can pass through the space formed by the support columns 30a, the support portions 30b, and the fan motor 5, and the reduction of the ventilation resistance can also be suppressed. It can be done.

  Here, FIG. 2 shows an example in which the number of the support portions 30b is two, but the present invention is not limited to this. If the outdoor fan 4 can be reliably supported, the number of support portions 30b may be one. Conversely, if two support portions 30b are not sufficient, three or more support portions 30b may be provided. Or you may comprise the support part 30b of a paper surface upper side and a paper surface lower side by the sheet-like board etc. of 1 sheet.

  As for the material constituting the column 30a and the support portion 30b, an iron-based or aluminum-based material is used so as to reliably support the outdoor fan 4 which is loaded with a stator and a rotor wound with a coil and is heavy. Often composed of metal. In the present embodiment, since the fan motor 5 is built in the boss 4b, the shaft 5a can be shortened. As a result, the center of gravity of the outdoor fan 4 can be brought close to the motor support 30. Therefore, since the force applied to the support column 30a and the support portion 30b can be suppressed, the support column 30a and the support portion 30b may be formed of a resin other than metal. By doing so, it is possible to reduce weight and cost.

<Partition plate 8>
The partition plate 8 partitions a space on the side where the outdoor heat exchanger 7 and the outdoor fan 4 and the like are provided and a space (machine room 10) on the side where the compressor 9 and the like are provided. The partition plate 8 has one end fixed to the rear panel 1 e side of the casing 1 where the suction port 6 is formed, and the other end fixed to the front panel 1 b side of the casing 1. In FIG. 1 and the like, the partition plate 8 is illustrated as an example in which the partition plate 8 is provided substantially parallel to the side panel 1c. However, the present invention is not limited to this. For example, one end side of the partition plate 8 may be bent and formed on the side where the compressor 9 or the like is provided, and the partition plate 8 may be configured to expand the air passage upstream or downstream.

  In the first embodiment, the length of the blade 4a in the radial direction is increased to generate a predetermined air volume with one outdoor fan 4. This is because, by increasing the radial length of the blades 4a and generating a predetermined air volume by one outdoor fan 4, the outdoor fan 4 can be operated efficiently at a relatively low rotational speed, and noise can be reduced. This is because it can be suppressed. However, the number of outdoor fans 4 installed in the casing 1 is not limited to one. For example, according to the increase in the number of heat exchange parts 7a to 7d of the outdoor heat exchanger 7, that is, according to the increase in the volume (mounting volume) of the outdoor heat exchanger 7 occupying the casing 1, the outdoor heat exchanger 7 The amount of air supplied may be increased. In this case, a plurality of outdoor fans 4 may be provided in the casing 1.

  Moreover, in this Embodiment 1, although the four heat exchange parts 7a-7d are comprised separately and connected, for example, after manufacturing a heat exchange part integrally, the above-mentioned 1st-3rd bending part is mentioned. The outdoor heat exchanger 7 may be configured by bending at a portion corresponding to. Moreover, you may manufacture integrally so that it may become a waveform from the first.

<Description of operation (air flow)>
Next, the operation of the outdoor unit 50 according to the first embodiment will be described. As shown by the white arrows in FIG. 1B, the air flow generated by the outdoor fan 4 flows from the suction port 6 to the base plate 1a, the front panel 1b, the side panel 1c, the rear panel 1e, and the top plate 1d. It flows into the formed air passage and is discharged from the air outlet 2.
Therefore, by driving the outdoor fan 4, the air in the vicinity of the outdoor unit 50 flows into the air passage from the suction port 6, and the fins 71 of the outdoor heat exchanger 7 disposed in the air passage and the motor support It passes through 30 support columns 30a and 30b and is discharged from the air outlet 2. And when air passes between the fins 71 of the outdoor heat exchanger 7, it exchanges heat with the refrigerant flowing through the heat transfer tubes 72.

  Here, as can be seen from the white arrow in FIG. 1B, in the outdoor unit 50 according to the first embodiment, the air sucked from the suction port 6 passes through the air passage in a substantially straight line and is outdoor. Released from the fan 4. For this reason, most of the pressure loss in the air passage occurs when passing through the outdoor heat exchanger 7. Since the pressure loss (so-called shape loss) due to the bending or expansion / reduction of air is suppressed, the fan input can be reduced. In the outdoor unit 50 according to the first embodiment, the inflow condition suitable for the axial fan is such that air flows in substantially parallel to the rotation axis of the outdoor fan 4. For this reason, the fan efficiency of the outdoor fan 4 is improved, and a less disturbing flow flows into the outdoor fan 4, so that noise can be reduced.

<Effects of outdoor unit 50 according to Embodiment 1>
As described above, in the outdoor unit 50 according to the first embodiment, the outdoor heat exchanger 7 built in the casing 1 is constituted by the heat exchange units 7a to 7d, and the heat exchange units 7a to 7d are corrugated. Therefore, the mounting volume of the outdoor heat exchanger 7 can be increased without increasing the unit size. For this reason, the outdoor unit 50 can increase the heat exchange amount of the outdoor heat exchanger 7 with high efficiency without increasing the size of the casing 1.

  Moreover, since the outdoor unit 50 which concerns on this Embodiment 1 has arrange | positioned the heat exchange parts 7a-7d which comprise the outdoor heat exchanger 7 in the waveform, it sucks in the air supplied to the outdoor heat exchanger 7. A sufficiently large area can be secured. As a result, the fan input can be reduced as much as the ventilation resistance of the outdoor heat exchanger 7 is reduced, and the power consumption of the outdoor unit 50 can be suppressed.

Further, in the outdoor unit 50 according to the first embodiment, since the bent portion 40 is disposed so that the portion of the motor support 30 adjacent to the outer peripheral portion of the blade 4a is separated from the blade 4a, the generation of noise is suppressed. be able to. Thereby, an air volume can be increased and the heat exchange amount of the outdoor heat exchanger 7 can be increased with high efficiency.
More specifically, the volume of the outdoor heat exchanger 7 can be increased so that the outdoor heat exchanger 7 has a wave shape, and the amount of heat exchange can be increased with high efficiency. At the same time, because the outdoor heat exchanger 7 has a wave shape, the ventilation area is increased and the motor support 30 is provided with the bent portion 40, thereby increasing the air volume. That is.

  A conventional outdoor unit in which the casing 1 is configured to communicate with the inside and outside of the casing 1 with respect to a plurality of the side surfaces of the casing 1, and an outdoor heat exchanger is configured in a shape along the plurality of surfaces; When compared with the outdoor unit 50 according to the first embodiment, the outdoor unit 50 has the following effects. Here, hereinafter, the volume of the outdoor heat exchanger 7 is expressed as “stack width length (distance between fins 71 arranged at both ends in the stacking direction of fins 71)” × “longitudinal length of fins 71” × It is defined as “the length of the fin 71 in the short direction”. Moreover, when the outdoor heat exchanger 7 is comprised by several heat exchange part 7a-7d like this Embodiment 1, the sum total of the volume of each heat exchange part 7a-7d is set as the volume of the outdoor heat exchanger 7. To do.

  When it is assumed that the unit size of the outdoor unit 50 according to the first embodiment is the same as that of the conventional outdoor unit and the volume of the heat exchanger built in both outdoor units is the same, the outdoor unit according to the first embodiment 50 can make the sum total of the length of the longitudinal direction of the fin 71 of each heat exchanger longer than the conventional outdoor unit. Therefore, the length of the fin 71 in the short direction (the thickness of the outdoor heat exchanger 7) can be reduced. Further, the length in the short direction of the fin 71 and the number of rows of the heat transfer tubes arranged along the short direction of the fin 71 have a correspondence relationship. For this reason, when it is assumed that the unit size of the outdoor unit 50 according to the first embodiment is the same as that of the conventional outdoor unit and the volumes of the outdoor heat exchangers built in both outdoor units are the same, the first embodiment The outdoor unit 50 according to this can also reduce the number of rows of the heat transfer tubes 72.

  As described above, the outdoor unit 50 according to the first embodiment can operate the outdoor heat exchanger 7 more efficiently than the conventional outdoor unit, so that the performance of the outdoor unit 50 can be improved without increasing the unit size. Can be improved. That is, the outdoor unit 50 according to the first embodiment can reduce the volume of the outdoor heat exchanger 7 by an amount corresponding to the improvement of the heat exchange efficiency when trying to obtain a heat exchange efficiency equivalent to that of the conventional outdoor unit. Accordingly, the material cost can be suppressed by the amount of reduction in the volume of the outdoor heat exchanger 7.

  5A and 5B are diagrams showing another example of the modification according to Embodiment 1. FIG. Compared to FIG. 5B, which is the same arrangement as FIG. 1, in FIG. 5A, the orientation of the outdoor heat exchanger 7 is reversed with respect to the air flow. By arranging in this way, the bending position of the outdoor heat exchanger 7 can be arranged at the upstream position of the air flow of the fan motor 5. Since the air flowing into the outdoor heat exchanger 7 flows from the upstream side to the downstream side of the outdoor heat exchanger 7, the air flow is reduced in the vicinity of the heat transfer tube bent portion 72b. That is, since the fan motor 5 is disposed opposite to the position where the air flow is small, an increase in ventilation resistance by the fan motor 5 can be suppressed. Thereby, the increase in the input of the outdoor fan 4 can be suppressed. In addition, an increase in noise due to turbulence due to airflow interference can be suppressed.

Embodiment 2. FIG.
6A and 6B are diagrams showing a schematic configuration example of the outdoor unit 50 of the air-conditioning apparatus according to Embodiment 2 of the present invention. In the first embodiment, the outdoor heat exchanger 7 is configured by four separate heat exchangers 7a to 7d, but in the present embodiment, the outdoor heat exchanger 7 is configured by five heat exchangers. ing. 6A and 6B are arranged such that the bending direction of the heat exchanger is symmetrical with respect to the air flow direction with respect to the inflowing air flow. Since outdoor unit 50 concerning this embodiment can operate outdoor heat exchanger 7 efficiently compared with the conventional outdoor unit, it can increase the amount of mounting of a heat exchanger, without enlarging unit size. The performance of the outdoor unit 50 can be improved efficiently.

Embodiment 3 FIG.
7A and 7B are diagrams showing a schematic configuration example of the outdoor unit 50 of the air-conditioning apparatus according to Embodiment 3 of the present invention. In the first embodiment, the outdoor heat exchanger 7 is configured by four separate heat exchangers 7a to 7d, but in the present embodiment, the outdoor heat exchanger 7 is configured by six heat exchangers. ing. 7A and 7B are arranged so that the bending direction of the heat exchanger is symmetric with respect to the air flow direction with respect to the inflowing air flow. Since outdoor unit 50 concerning this embodiment can operate outdoor heat exchanger 7 efficiently compared with the conventional outdoor unit, it can increase the amount of mounting of a heat exchanger, without enlarging unit size. The performance of the outdoor unit 50 can be improved efficiently.

Embodiment 4 FIG.
8A to 8C are diagrams showing an example of a schematic configuration of the outdoor unit 50 of the air-conditioning apparatus according to Embodiment 4 of the present invention. In Embodiment 1, the outdoor heat exchanger 7 is composed of four separate heat exchange units 7a to 7d, but in this embodiment, the outdoor heat exchanger 7 is composed of seven heat exchange units. ing. Since outdoor unit 50 concerning this embodiment can operate outdoor heat exchanger 7 efficiently compared with the conventional outdoor unit, it can increase the amount of mounting of a heat exchanger, without enlarging unit size. The performance of the outdoor unit 50 can be improved efficiently.

  Here, in FIG. 8A and FIG. 8C, the folding direction of the heat exchanger is symmetrical with respect to the air flow direction with respect to the inflowing air flow. Further, as shown in FIG. 8A, one of the motor support 30 in the vertical direction, one part of the motor support 30 adjacent to the outer peripheral part of the blade 4 a interferes with the heat transfer tube bent part 72 b of the outdoor heat exchanger 7, Even when the bent portion 40 is not provided, the same effect can be obtained by providing the bent portion 40 on at least one side.

Further, as shown in FIG. 8B, one of the motor support 30 in the vertical direction, one part of the motor support 30 adjacent to the outer peripheral part of the blade 4 a interferes with the heat transfer tube bent part 72 b of the outdoor heat exchanger 7, In the case where the bent portion 40 is not provided, the bent portion 40 may be provided so that the bent portion 40 of the motor support 30 does not interfere with the heat transfer tube bent portion 72b of the outdoor heat exchanger 7. The front view of FIG. 8B shows the positional relationship between the outdoor heat exchanger 7 and the motor support 30. As shown in the front view of FIG. 8B, the lower side of the motor support 30 is arranged obliquely from the vertical direction, and a bent portion 40 is provided. In the front view of FIG. 8B, the blade 4a is not shown and the outer peripheral position of the blade 4a is indicated by a broken line so that the positional relationship between the bent portion 40 and the heat transfer tube bent portion 72b of the outdoor heat exchanger 7 can be easily understood. In addition, the motor support 30 is provided with a second bent portion 41, the lower side is disposed obliquely from the vertical direction, and is bent at a position that does not interfere with the heat transfer tube bent portion 72b of the outdoor heat exchanger 7 at the outer peripheral position of the blade 4a. A portion 40 is provided.
As in the present embodiment, one of the vertical directions of the motor support 30 has one portion of the motor support 30 that is close to the outer peripheral portion of the blade 4a interferes with the heat transfer tube bent portion 72b of the outdoor heat exchanger 7, and is bent. Even when the portion 40 is not provided, the same effect can be obtained by providing the bent portion 40 on at least one side. Further, as shown in FIG. 8B, one of the motor support 30 in the vertical direction, one part of the motor support 30 adjacent to the outer peripheral part of the blade 4a interferes with the heat transfer tube bent part 72b of the outdoor heat exchanger 7. When the bent portion 40 is not provided, the bent portion 40 may be provided in such a shape that the bent portion 40 of the motor support 30 does not interfere with the heat transfer tube bent portion 72b of the outdoor heat exchanger 7.

Embodiment 5 FIG.
9A and 9B are diagrams showing a schematic configuration example of the outdoor unit 50 of the air-conditioning apparatus according to Embodiment 4 of the present invention. In the first embodiment, the outdoor heat exchanger 7 is configured by four separate heat exchange units 7a to 7d, but in the present embodiment, the outdoor heat exchanger 7 is configured by eight heat exchanges. Yes. 9A and 9B are arranged such that the bending direction of the heat exchanger is symmetrical with respect to the air flow direction with respect to the inflowing air flow. Since outdoor unit 50 concerning this embodiment can operate outdoor heat exchanger 7 efficiently compared with the conventional outdoor unit, it can increase the amount of mounting of a heat exchanger, without enlarging unit size. The performance of the outdoor unit 50 can be improved efficiently.

Embodiment 6 FIG.
10A and 10B are diagrams showing an example of a schematic configuration of the outdoor unit 50 of the air-conditioning apparatus according to Embodiment 6 of the present invention. In the first embodiment, the outdoor heat exchanger 7 is configured by four separate heat exchange units 7a to 7d. However, in the present embodiment, the outdoor heat exchanger 7 is configured by nine heat exchanges. Yes. 10A and 10B are arranged so that the bending direction of the heat exchanger is symmetrical with respect to the air flow direction with respect to the inflowing air flow. Since outdoor unit 50 concerning this embodiment can operate outdoor heat exchanger 7 efficiently compared with the conventional outdoor unit, it can increase the amount of mounting of a heat exchanger, without enlarging unit size. The performance of the outdoor unit 50 can be improved efficiently.

  As in the present embodiment, one of the motor support 30 in the vertical direction is bent by one portion of the motor support 30 adjacent to the outer peripheral portion of the blade 4a interfering with the heat transfer tube bent portion 72b of the outdoor heat exchanger 7. Even when the portion 40 is not provided, the same effect can be obtained by providing the bent portion 40 on at least one side. Further, as shown in FIG. 8B, one of the motor support 30 in the vertical direction, one part of the motor support 30 adjacent to the outer peripheral part of the blade 4a interferes with the heat transfer tube bent part 72b of the outdoor heat exchanger 7. When the bent portion 40 is not provided, the bent portion 40 may be provided in such a shape that the bent portion 40 of the motor support 30 does not interfere with the heat transfer tube bent portion 72b of the outdoor heat exchanger 7.

Embodiment 7 FIG.
In the first embodiment, the outdoor heat exchanger 7 is configured by connecting a plurality of heat exchanging units 7a to 7d and arranging the heat exchanging units 7a to 7d so that the shape viewed in a vertical section is a wave shape. It was. The outdoor heat exchanger 7 in the seventh embodiment is common to the first embodiment in that a plurality of heat exchanging parts 7a to 7d are connected, but the shape viewed in a horizontal section is a wave shape. This is different from the first embodiment in that the heat exchanging parts 7a to 7d are arranged.

  11A to 11E are diagrams showing a schematic configuration example of the outdoor unit 50 of the air-conditioning apparatus according to Embodiment 7 of the present invention. FIG. 11A is a front view of the outdoor unit 50. 11B is a cross-sectional view taken along the line AA in FIG. 11A. FIG. 11C is a rear view of the outdoor unit 50. FIG. 11D is a view of the inside of the outdoor unit 50 as viewed from the side panel 1c side on the left side of the drawing. FIG. 11E is a view of the inside of the outdoor unit 50 as viewed from the partition plate 8 side. However, in FIG. 11E, the outdoor fan 4 and the motor support 30 are also illustrated so that the positional relationship among the outdoor heat exchanger 7, the outdoor fan 4, and the motor support 30 can be understood. Here, in the seventh embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and differences from the first embodiment will be mainly described. Moreover, the white arrow shown to FIG. 11B has shown the flow of the air which flows through the outdoor unit 50. FIG.

  As shown in FIG. 11B, the outdoor heat exchanger 7 of the present embodiment includes four heat exchange units 7a to 7d that exchange heat between the supplied air and the refrigerant. The heat exchange units 7 a to 7 d are heat exchangers, and these are connected by a refrigerant pipe to constitute the outdoor heat exchanger 7. The heat exchangers 7a to 7d are connected by a heat transfer tube 72. In the example of FIG. 11B, a U-bend side heat transfer tube 72a that connects a U-bend (not shown) that connects pipes to a heat exchange part 7d that forms one end of the heat exchanger is provided, and the other end is A hairpin side heat transfer tube 72c is provided in the heat exchanging portion 7a. The “heat exchange unit 7a and heat exchange unit 7b”, “heat exchange unit 7b and heat exchange unit 7c”, and “heat exchange unit 7c and heat exchange unit 7d” are connected via a heat transfer tube bending unit 72b.

  The heat exchanging parts 7a to 7d are arranged in the casing 1 so that the shape viewed in a horizontal section is a wave shape. For this reason, the mounting volume of the outdoor heat exchanger 7 provided in the casing 1 increases, and the amount of heat exchange can be increased. Further, the outdoor heat exchanger 7 has a corrugated horizontal cross section, and the ventilation of the outdoor heat exchanger 7 is compared with, for example, an outdoor heat exchanger whose horizontal cross section has a linear shape or an L shape. The area also increases. For this reason, the outdoor heat exchanger 7 can suppress the increased ventilation resistance even when the mounting volume is increased by the same value as that of the linear cross section or the L shape, for example. Thereby, even if the outdoor heat exchanger 7 can suppress the ventilation resistance of the outdoor heat exchanger 7 even if it increases fan input with the increase in the mounting volume of the outdoor heat exchanger 7, the fan input is reduced. Can be reduced. Furthermore, although the outdoor heat exchanger 7 has a large mounting volume and a large ventilation area, the shape as viewed in a horizontal section is a wave shape, and thus is compact. As described above, as in the seventh embodiment, the outdoor heat exchanger 7 can increase the mounting volume and the ventilation area without increasing the size of the casing 1, and the heat exchange amount of the outdoor heat exchanger 7 can be increased. Can be increased with high efficiency.

  Here, the connection angle (first angle) between the heat exchange unit 7a and the heat exchange unit 7b, the connection angle (second angle) between the heat exchange unit 7b and the heat exchange unit 7c, and the heat exchange unit 7c and the heat Each heat exchange part is connected so that the connection angle (third angle) with the exchange part 7d becomes an acute angle when the outdoor heat exchanger 7 is viewed in a horizontal section. These connection angles may not be the same angle.

  The outdoor heat exchanger 7 is configured by connecting four heat exchange portions 7a to 7d, which are heat exchangers, and has a shape in which a refrigerant pipe that connects the heat exchange portions 7a to 7d is bent. ing. The outdoor heat exchanger 7 includes a heat transfer tube bent portion 72b (first bent portion) corresponding to a connection portion between the heat exchange portion 7a and the heat exchange portion 7b, and a connection portion between the heat exchange portion 7b and the heat exchange portion 7c. And a heat transfer tube bent portion 72b (third bent portion) corresponding to a connection portion between the heat exchange portion 7c and the heat exchange portion 7d. Yes. Thus, since the outdoor heat exchanger 7 has a total of four heat exchange parts 7a-7d, three bending parts are formed corresponding to this. That is, if the number of heat exchange units is N (N is an integer of 2 or more), N-1 bent portions are formed.

  Moreover, the end part side by the side of the outdoor fan 4 of the heat exchange parts 7a-7d is adjoining to the outdoor fan 4, and is arrange | positioned so that the ventilation area of the outdoor heat exchanger 7 may become large enough. The heat exchanging parts 7 a to 7 d are composed of fins 71 and heat transfer tubes 72. As shown in FIG. 11B, the fins 71 are strip-like plates extending in a direction orthogonal to the plane of the paper (vertical direction), and a plurality of fins 71 are stacked in a horizontal direction at regular intervals so as to form a gap through which air flows. Yes. Here, the configuration of the heat exchanging portions 7a to 7d is not limited thereto, and a plurality of fins 71 may be stacked in the vertical direction. When the fins 71 are stacked in the vertical direction, the fins 71 are parallel to the air flow direction. That is, when the fins 71 are stacked in the vertical direction, the gap between the fins 71 is expanded in the horizontal direction. For this reason, the ventilation resistance of the outdoor heat exchanger 7 can be reduced, and fan input can be reduced.

  FIG. 12 is a schematic diagram of the fan motor 5 and the motor support 30 according to the seventh embodiment of the present invention. The motor support 30 according to the seventh embodiment is configured such that the motor support 30 according to the first embodiment is rotated by 90 degrees. As shown in FIG. 11B, the column 30a is provided so as to extend in a substantially horizontal direction from the side panel 1c side of the casing 1 to the partition plate 8 side. One end of the column 30a is fixed to the side panel 1c, and the other end of the column 30a is fixed to the partition plate 8. The support | pillar 30a is supporting the fan motor 5 of the outdoor fan 4 via the support part 30b. As shown in FIG. 12, the support portion 30 b is provided so as to be substantially orthogonal to the column 30 a and supports the fan motor 5 of the outdoor fan 4.

  In the seventh embodiment, the case where the number of heat exchange parts of the outdoor heat exchanger 7 is four and the number of bent parts is three has been described as an example, but the present invention is not limited to this. For example, the number of heat exchange parts of the outdoor heat exchanger 7 may be five or more, and the number of bent parts may be four or more. In this case, since the ventilation resistance is also increased, it is better to appropriately select the specifications of the outdoor heat exchanger 7 such as reducing the “thickness” of the outdoor heat exchanger 7. Moreover, in this Embodiment 7, although the four heat exchange parts 7a-7d are comprised separately, the part corresponding to the above-mentioned 1st-3rd bending part after manufacturing a heat exchange part integrally. In this case, the outdoor heat exchanger 7 may be bent. Moreover, you may manufacture integrally so that it may become a waveform from the first.

<Effects of outdoor unit 50 according to Embodiment 7>
In the outdoor unit 50 according to the seventh embodiment, the heat exchangers 7a to 7d are arranged to configure the outdoor heat exchanger 7 so that the shape viewed in the horizontal cross section is a wave shape. 1 has the same effect as the outdoor unit 50 according to FIG.

Embodiment 8 FIG.
13A to 13D are diagrams illustrating a schematic configuration example of the outdoor unit 50 of the air-conditioning apparatus according to Embodiment 8. In the eighth embodiment, the outdoor fan 4 of the outdoor unit 50 described in the first and second embodiments is improved. FIG. 13A is a front view of the outdoor unit 50. FIG. 13B is a cross-sectional view taken along line AA in FIG. 13A. FIG. 13C is a view from the BB side in FIG. 13B. 13D is a cross-sectional view seen from the CC side in FIG. 13B. In the eighth embodiment, the same parts as those of the outdoor unit 50 described in the first embodiment and the like are denoted by the same reference numerals, and differences from the first embodiment will be mainly described.

  As shown in FIG. 13A, the blades of the outdoor fan 4 according to the eighth embodiment are connected to the inner peripheral blade 101 whose inner peripheral side end is connected to the boss 4b and the outer peripheral side end of the inner peripheral blade 101. And an outer peripheral blade 102 whose inner peripheral end is connected to the intermediate ring 100.

  The inner peripheral blade 101 has an inner peripheral end connected to the boss 4 b and an outer peripheral end connected to the intermediate ring 100. The intermediate ring 100 is a member having a ring shape in plan view, and connects and fixes the inner peripheral blade 101 and the outer peripheral blade 102. The intermediate ring 100 is provided at a substantially intermediate position of the blade (substantially intermediate position between the outer periphery of the boss 4b and the outer peripheral end of the outer peripheral blade 102). The outer peripheral blade 102 is provided such that the inner peripheral end is connected to the intermediate ring 100 and the outer peripheral end is opposed to the bell mouth 3.

  In the eighth embodiment, the aerodynamic performance of the outdoor fan 4 is ensured by increasing the number of outer peripheral blades 102 than the number of inner peripheral blades 101. As shown in FIG. 13A, the intermediate ring 100 has a diameter that is substantially the same as the interval between the columns 30a, and is disposed opposite the columns 30a.

  As described in the first embodiment, air hardly flows in the vicinity of the heat transfer tube bent portion 72b, which is a connection portion of the heat exchange portions 7a to 7d. In the present embodiment, since the intermediate ring 100 without blades is positioned in the air passage corresponding to the heat transfer tube bent portion 72b, the aerodynamic performance of the outdoor fan 4 is reduced due to the provision of the intermediate ring 100. Can be suppressed. Further, since there is no air inflow into the intermediate ring 100, it is possible to suppress an increase in noise caused by disturbance due to interference between the sucked air and the intermediate ring 100. As described above, the outdoor fan 4 can be made thinner, that is, the mounting volume of the outdoor heat exchanger 7 can be increased without causing a decrease in the aerodynamic performance of the outdoor fan 4 and an increase in noise.

  In addition, the outdoor fan 4 in the first embodiment is configured such that the width of the blades is narrowed, the number of blades is increased correspondingly, and the thickness in the rotation axis direction is reduced. On the other hand, the outdoor fan 4 according to the eighth embodiment is provided with the intermediate ring 100 between the inner peripheral blade 101 and the outer peripheral blade 102, so that the strength of the blade base side can be improved. For this reason, it becomes possible to make the width | variety of a blade | wing still more narrow, and can increase the number of the inner peripheral blade | wing 101 and the outer peripheral blade | wing 102 by the part which reduced the width | variety. For this reason, the outdoor fan 4 according to the eighth embodiment has a rotational axis that is greater than that of the outdoor fan 4 according to the first embodiment without reducing the ability to carry air than the outdoor fan 4 according to the first embodiment. The thickness in the direction can be reduced. And since the axial thickness of the blade | wing of the outdoor fan 4 can be made thinner, the space which mounts the outdoor heat exchanger 7 in the outdoor unit 50 increases, and the mounting volume of the outdoor heat exchanger 7 is increased. be able to.

  Here, in the eighth embodiment, the configuration of the blade having the inner peripheral blade 101, the outer peripheral blade 102, and the intermediate ring 100 is used, but the present invention is not limited to this. For example, a ring-shaped member (peripheral ring) that connects adjacent outer peripheral blades 102 may be further provided. In this case, when the boss 4b in FIG. 13A is used as a center, a ring-shaped member is provided on the outer peripheral blade 102 so as to fix an outer portion (end portion side of the outer peripheral blade 102) extending in the direction (radial direction) from the center. It is possible to do so. By setting it as such a blade | wing structure, the intensity | strength of a blade | wing can further be improved.

<Modification>
14A and 14B are views showing a modification of the outdoor unit 50 according to Embodiment 8 shown in FIG. FIG. 14A is a front view of the outdoor unit 50. 14B is a cross-sectional view taken along the line AA in FIG. 14A.

  In the outdoor unit 50 of FIG. 13 described above, a mode in which the blades of the outdoor fan 4 include the outer peripheral blades 102, the inner peripheral blades 101, and the intermediate ring 100 is compared with the outdoor heat exchanger 7 and the motor support 30 in the first embodiment. Applied. In the outdoor unit 50 of FIG. 14, a mode in which the blades of the outdoor fan 4 include the outer peripheral blades 102, the inner peripheral blades 101, and the intermediate ring 100 is applied to the outdoor heat exchanger 7 and the motor support 30 in the second embodiment. It is a thing. In the outdoor unit 50 configured as shown in FIG. 14, the same effect as that of the embodiment shown in FIG. 13 can be obtained.

<Effects of outdoor unit 50 according to Embodiment 8>
The outdoor unit 50 according to the eighth embodiment has the same effects as the outdoor unit 50 according to the first and second embodiments. Furthermore, in the outdoor unit 50 according to the eighth embodiment, by using the blades having the inner peripheral blade 101 and the outer peripheral blade 102, the outdoor fan 4 can be made thinner without reducing aerodynamic performance and increasing noise. Can increase the mounting volume of the outdoor heat exchanger 7.

Embodiment 9 FIG.
FIG. 15 is a configuration diagram of an air-conditioning apparatus according to Embodiment 9 of the present invention. This Embodiment demonstrates the air conditioning apparatus which has the outdoor unit (outdoor unit) 50 demonstrated in Embodiment 1-8. The air conditioner of FIG. 15 configures a refrigerant circuit by connecting the outdoor unit 50 and the indoor unit (indoor unit) 55 described in Embodiments 1 to 8 with refrigerant piping. Among the refrigerant pipes, a pipe through which a gaseous refrigerant (gas refrigerant) flows is referred to as a gas pipe 58, and a pipe through which a liquid refrigerant (liquid refrigerant, sometimes a gas-liquid two-phase refrigerant) flows is referred to as a liquid pipe 59.

  In the present embodiment, the outdoor unit 50 is configured by the devices (means) of the compressor 9, the four-way valve 51, the outdoor heat exchanger 7, the outdoor fan 4, and the expansion device 52.

  As described in the first embodiment, the compressor 9 compresses and discharges the sucked refrigerant. Here, the compressor 9 can change the capacity | capacitance (amount which sends out the refrigerant | coolant per unit time) finely by changing an operating frequency arbitrarily. The four-way valve 51 switches the refrigerant flow between the cooling operation and the heating operation.

  Moreover, the outdoor heat exchanger 7 performs heat exchange between the refrigerant and air (outdoor air) as described in the first embodiment. For example, during the heating operation, it functions as an evaporator, and performs heat exchange between the low-pressure refrigerant that has flowed in through the expansion device 52 and the air to evaporate and vaporize the refrigerant. Further, during cooling operation, the refrigerant functions as a condenser, performs heat exchange between the refrigerant compressed in the compressor 9 flowing in from the four-way valve 51 side and air, and condenses and liquefies the refrigerant. The outdoor fan 4 is the same as that described in the first embodiment. The expansion device 52 changes (opens) the pressure of the refrigerant in the indoor heat exchanger 56, for example, by changing the opening.

  On the other hand, the indoor unit 55 includes an indoor heat exchanger 56 and an indoor fan 57. The indoor heat exchanger 56 performs heat exchange between the refrigerant and air. For example, during heating operation, it functions as a condenser, performs heat exchange between the refrigerant flowing in from the gas pipe 58 and air, condenses and liquefies the refrigerant (or gas-liquid two-phase), and moves to the liquid pipe 59 side. Spill. On the other hand, during the cooling operation, it functions as an evaporator, performs heat exchange between the refrigerant and the air, which has been brought to a low pressure state by the expansion device 52, takes the heat of the air to evaporate and evaporates, and gas pipe 58 Spill to the side. The indoor unit 55 is provided with an indoor fan 57 for adjusting the flow of air for heat exchange.

  By configuring the air conditioner as described above and performing the operation, it is possible to achieve the same effects as the effects described in the first to eighth embodiments.

  In the above-described embodiment, the case where the outdoor unit according to the present invention is applied to an air conditioner has been described. However, the present invention is not limited to this. The present invention can also be applied to a refrigeration cycle apparatus (heat pump apparatus) such as a refrigeration apparatus.

  1 casing, 1a base plate, 1b front panel, 1c side panel, 1d top panel, 1e rear panel, 2 outlet, 3 bell mouth, 4 outdoor fan, 4a blade, 4b boss, 5 fan motor, 5a shaft, 6 inlet , 7 outdoor heat exchanger, 7a, 7b, 7c, 7d heat exchange part, 8 partition plate, 9 compressor, 10 machine room, 30 motor support, 30a strut, 30b support part, 40 bent part, 41 second bent Unit, 50 outdoor unit, 51 four-way valve, 52 throttle device, 55 indoor unit, 56 indoor heat exchanger, 57 indoor fan, 58 gas piping, 59 liquid piping, 71 fin, 72 heat transfer tube, 72a U bend side heat transfer tube, 72b Heat transfer tube bent portion, 72c Hairpin side heat transfer tube, 100 Intermediate ring, 101 Inner peripheral blade, 102 Outer peripheral blade .

An outdoor unit according to the present invention includes a casing having an inlet and an outlet, an outdoor heat exchanger for exchanging heat between the refrigerant and air in the casing, and a rotatable blade, and the outdoor heat from the inlet Outdoor heat exchange with an outdoor fan that forms an air flow that passes through the exchanger to the outlet and a motor support that is provided downstream of the outdoor heat exchanger in the air flow direction and supports the outdoor fan vessel, in the outdoor heat exchanger horizontal cross section or vertical cross section, disposed heat exchange section is a plurality of heat exchangers such that the upward toward the inner edge 26b thereof shape or substantially zigzag shape, between adjacent heat exchange section Interfacing with constitute a connecting portion, a motor support includes a support portion for supporting a plurality of struts which are fixed to the casing so as to be perpendicular to the flow of air, is fixed to the plurality of struts the outdoor fan Have multiple Struts have a bent portion to expand the distance between the blades, also those in which the second bent portion for preventing contact between the outdoor heat exchanger is provided in the strut.

Claims (14)

A casing having an inlet and an outlet;
In the casing, an outdoor heat exchanger that performs heat exchange between the refrigerant and air;
An outdoor fan having a rotatable blade, and forming a flow of the air from the inlet through the outdoor heat exchanger to the outlet;
A motor support provided on the downstream side of the outdoor heat exchanger in the air flow direction and supporting the outdoor fan;
In the outdoor heat exchanger, the heat exchangers that are a plurality of heat exchangers are arranged in a substantially wave shape or a substantially zigzag shape in a horizontal sectional view or a vertical sectional view, and the adjacent heat exchangers are adjacent to each other. It has a connection part that connects pipes between heat exchange parts,
The motor support includes a plurality of pillars fixed in the casing so as to be orthogonal to the air flow, and a support part fixed to the plurality of pillars and supporting the outdoor fan. The column is an outdoor unit having a bent portion that increases the distance between the blades. The outdoor heat exchanger is arranged in a substantially wave shape or a substantially zigzag shape when viewed in the vertical cross section,
2. The outdoor unit according to claim 1, wherein upper ends of the plurality of support columns are fixed to an upper portion of the outer casing of the casing, and lower ends thereof are fixed to an outer lower portion of the casing. In the casing, further comprising a partition plate that partitions a space on the side where the outdoor heat exchanger, the motor support and the outdoor fan are installed, and a space on the side where at least the compressor is installed.
The outdoor heat exchanger is arranged in a substantially wave shape or a substantially zigzag shape when viewed in the horizontal cross section,
The outdoor unit according to claim 1, wherein one end side of each of the plurality of support columns is fixed to an upper portion of the side surface of the casing, and the other end side is fixed to the partition plate.   The outdoor heat exchanger according to any one of claims 1 to 3, wherein the outdoor heat exchanger is provided such that the connection portion that is pipe-connected on the side opposite to the motor support side is located on the suction port side. unit.   The said motor support is an outdoor unit as described in any one of Claims 1-4 in which the 2nd bending part for contact prevention with the said outdoor heat exchanger is provided in the said support | pillar. The bent portion of the motor support is
The outdoor unit as described in any one of Claims 1-5 located in the downstream rather than the position of the said connection part of the said motor support side of the said outdoor heat exchanger with respect to the flow direction of air. The bent portion of the motor support is
The outdoor unit according to any one of claims 1 to 5, wherein the connection portion on the motor support side of the outdoor heat exchanger is in contact with the outdoor heat exchanger. The bent portion of the motor support is
The outdoor unit according to any one of claims 1 to 5, wherein the outdoor unit is located upstream of a position of the connection portion on the motor support side of the outdoor heat exchanger with respect to an air flow direction. The outdoor heat exchanger is
A plurality of fins arranged in a substantially horizontal direction through a predetermined interval;
The outdoor unit as described in any one of Claims 1-8 which has a heat exchanger tube which penetrates this some fin and a refrigerant | coolant flows. The outdoor heat exchanger is
A plurality of fins arranged in a substantially vertical direction through a predetermined interval;
The outdoor unit as described in any one of Claims 1-8 which has a heat exchanger tube which penetrates this some fin and a refrigerant | coolant flows. The outdoor fan is
A cylindrical boss and an impeller having a plurality of blades attached to the boss and rotating around a rotation axis to generate a gas flow;
A motor connected to the boss and driven to rotate the impeller about a rotation axis;
The outdoor unit according to any one of claims 1 to 10, wherein at least a part of the motor is disposed in a space in the boss. The outdoor fan is
An inner peripheral blade whose inner peripheral end is connected to the boss;
An intermediate ring connected to the outer peripheral side end of the inner peripheral blade;
An inner peripheral end having an outer peripheral blade connected to the intermediate ring;
The outdoor unit according to claim 11, wherein the intermediate ring is formed so as to have a diameter substantially the same as a distance between the plurality of support columns and opposed to the plurality of support columns. The outdoor fan is
The outdoor unit according to claim 12, further comprising an outer peripheral ring that is provided outside the intermediate ring in the radial direction of the blades and connects between the adjacent outer peripheral blades. The outdoor unit according to any one of claims 1 to 13,
An air conditioner in which a refrigerant circuit is configured by pipe connection to an indoor unit having an indoor heat exchanger.

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