JP2019132549A - Outdoor unit of air conditioning device - Google Patents

Abstract

In an outdoor unit of an air conditioner, a heat exchanger having a bent part between a heat exchange part and a heat exchange part is attached to a casing with a simple structure.
A heat exchanger 10 includes a first connecting portion 51 attached to an upper end portion of a heat exchanging portion 11 and a second connecting portion 52 connected to a lower support 23 of the casing, and the heat exchanger 10 is attached to the lower support 23. A heat exchanger connecting member 50 to be connected is provided.
[Selection] Figure 9

Description

  The present disclosure relates to an outdoor unit of an air conditioner.

  Some outdoor units of an air conditioner include a heat exchanger having a bent portion between a plate-like heat exchange portion and a plate-like heat exchange portion in a casing (see, for example, Patent Document 1). In this outdoor unit, a fan is disposed at the upper part of the casing.

JP 2009-127991 A

  Although the specific structure which attaches a heat exchanger to a casing is not indicated by patent documents 1, the heat exchanger which has a bending part between a heat exchange part and a heat exchange part is attached to a casing by simple structure. Was difficult.

  An object of the present disclosure is to allow a heat exchanger having a bent part between a heat exchange part and a heat exchange part to be attached to a casing with a simple structure.

A first aspect of the present disclosure is an outdoor unit of an air conditioner,
A heat exchanger (10) having a bent portion (12) between a plurality of plate-like heat exchange portions (11);
A casing (2) having struts (23) at corners and accommodating the heat exchanger (10) in an internal space;
The heat exchanger (10) includes a first connecting part (51) attached to an upper end of the heat exchanging part (11) and a second connecting part (52) connected to the column (23). A heat exchanger coupling member (50) for coupling the column to the column (23);
It is characterized by having.

  In the first aspect, the first connecting portion (51) of the heat exchanger connecting member (50) is attached to the upper end of the heat exchanger (10) having the plate-like heat exchanging portion (11) and the bent portion (12). The heat exchanger (10) can be easily attached to the casing (2) simply by attaching the second connecting part (52) of the heat exchanger connecting member (50) to the support column (23).

  According to a second aspect of the present disclosure, in the first aspect, the heat exchanger (10) includes the heat exchange unit (11) arranged vertically or substantially vertically, and the first connection unit (51) includes: The heat exchange part (11) is formed in a U-shaped cross section that opens downward so as to be fitted to the upper end part from above.

  In the second aspect, the first connecting portion (51) is simply fitted into the heat exchanging portion (11) from above with the first connecting portion (51) having a U-shaped cross section opening downward. ).

  According to a third aspect of the present disclosure, in the first or second aspect, the heat exchanger connecting member (50) is configured so that the first connecting portion (51) is in contact with an upper end portion of the heat exchanging portion (11). ), And the sealing material (53) is a holding material that holds the heat exchanging portion (11) with a frictional force and is an electrolytic corrosion suppression material. .

  In the third aspect, the frictional force of the sealing material (53) acts between the first connection portion (51) of the heat exchanger connection member (50) and the upper end portion of the heat exchanger (10), and heat exchange is performed. Displacement of the heater connecting member (50) from the heat exchanger (10) is suppressed. In addition, the sealing material (53) makes it difficult for current to flow through the condensed water generated on the surface of the heat exchanger (10), thereby suppressing the occurrence of electrolytic corrosion.

  According to a fourth aspect of the present disclosure, in the third aspect, the heat exchanger (10) is a multi-row heat exchanger (10) in which a plurality of heat exchange sections (11) are arranged to overlap each other. Yes, the first connection portion (51) of the heat exchanger connection member (50) is fitted to the upper end portions of the plurality of rows of heat exchange portions (11) to maintain the interval between the heat exchange portions (11). It is characterized by being configured as a spacing member.

  In the fourth aspect, in the multi-row heat exchange section (11), the overlapped end portion is open and a gap is likely to be generated, whereas the first coupling section (51) is connected to the multi-row heat exchange section (11). ) Is suppressed, the occurrence of the gap is suppressed, and the interval between the heat exchange parts (11) is maintained.

  According to a fifth aspect of the present disclosure, in any one of the first to fourth aspects, the heat exchange unit (11) disposed along a side surface of the casing (2) and the support column (23). Cover member (55, 57) covering the gap formed between the cover member and the cover member (55, 57) is configured to be fixed to the heat exchanger connecting member (50). It is characterized by.

  In the fifth aspect, since the gap formed between the heat exchange part (11) and the support column (23) is closed by the cover members (55, 57), air that does not pass through the heat exchanger (10) Inflow into the casing (2) is suppressed.

FIG. 1 is a perspective view of an outdoor unit according to an embodiment as viewed from the front side. FIG. 2 is a perspective view of the outdoor unit according to the embodiment as viewed from the back side. FIG. 3 is a perspective view showing a schematic structure of the interior of the outdoor unit with the outdoor heat exchanger omitted. 4 is a schematic sectional view taken along line IV-IV in FIG. FIG. 5 is a perspective view of the lower casing as viewed from the front side, showing an outdoor heat exchanger, and omitting the compressor and other internal structural components. FIG. 6 is a perspective view of the upper casing as viewed from the front side. FIG. 7 is an exploded perspective view showing how the casing is assembled. FIG. 8 is an enlarged perspective view of a state where a cover is attached to a connecting portion between the lower support column and the heat exchanger connecting member. FIG. 9 is an enlarged perspective view of the state where the cover of the connecting portion between the lower support column and the heat exchanger connecting member is removed. FIG. 10 is an enlarged plan view of a connecting portion between the lower support column and the heat exchanger connecting member. FIG. 11 is a perspective view of the heat exchanger coupling member viewed from the outside. FIG. 12 is a perspective view of the heat exchanger coupling member viewed from the inside. 13 is a cross-sectional view taken along line XIII-XIII in FIG. FIG. 14 is a perspective view of the lower casing as viewed from the back side.

  Embodiments will be described.

  This embodiment relates to an outdoor unit (1) of an air conditioner. This air conditioner is, for example, a multi-type air conditioner configured by connecting a plurality of indoor units (not shown) to a single outdoor unit (1) through a communication pipe. For example, a plurality of outdoor units (1) of the air conditioner are installed side by side outdoors, and a plurality of indoor units are connected to each.

  The air conditioner provided with the outdoor unit (1) of this embodiment performs cooling and heating of an indoor space such as an office. The target space where the air conditioner performs air conditioning is not limited to the indoor space such as an office or a house, but is a space in a warehouse for storing articles, a working space for handling articles (for example, a clean room), and the like. May be.

<Overall unit structure>
FIG. 1 is a perspective view of the outdoor unit (1) of this embodiment as viewed from the front side, and FIG. 2 is a perspective view of the outdoor unit (1) as viewed from the back side. The outdoor unit (1) includes a first unit (1A) located on the right side as viewed from the front side and a second unit (2A) located on the left side. The first unit (1A) and the second unit (2A) ) Are integrally formed.

  The outdoor unit (1) of the air conditioner includes a vertical rectangular parallelepiped casing (2), and the components of the refrigerant circuit are accommodated in the casing (2). The casing (2) includes a lower casing (20), an upper casing (30), and a front panel (40), which are combined. The upper casing (30) is fixed on the lower casing (20). The front panel (40) is composed of four vertically long plate members (front plates) that cover almost the entire area from the upper end of the upper casing (30) to the lower end of the lower casing (20). The front panel (40) is mounted across the upper casing (30) and the lower casing (20).

  The outdoor unit (1) includes a compressor circuit (3), an outdoor heat exchanger (10), an outdoor expansion valve (not shown), an accumulator (4), an oil separator (5), and other components of the refrigerant circuit. Components such as a control device (electric component box (6)) in which electronic components for controlling the refrigerant circuit are accommodated are provided. The indoor unit is provided with devices such as an indoor expansion valve and an indoor heat exchanger.

  The outdoor heat exchanger (10) is provided in the lower casing (20). FIG. 3 is a perspective view showing a schematic structure of the interior of the outdoor unit (1) with the outdoor heat exchanger (10) omitted, and FIG. 4 is a schematic cross-sectional view taken along line IV-IV in FIG. As shown in FIGS. 2 and 4, the outdoor heat exchanger (10) includes a first outdoor heat exchanger (10a) provided in the first unit (1A) and a second provided in the second unit (2A). And an outdoor heat exchanger (10b). Each outdoor heat exchanger (10) has a plate-shaped three-surface heat exchange part (11) and a bent part (12) between the heat exchange parts (11), and the U-shape in plan view. ("U" shape).

  The outdoor heat exchanger (10) is a heat exchanger in which the ends of a plurality of flat tubes arranged parallel to each other and extending in the horizontal direction are connected to the header collecting tube (13), although details are omitted. A large number of fins are attached to the flat tube at a small pitch. Aluminum is used as a material for flat tubes and fins. Each outdoor heat exchanger (10) is a multi-row heat exchanger in which flat tubes are arranged in two rows. Each outdoor heat exchanger (10) is attached to the casing (2) so that the header collecting pipe (13) is oriented along the vertical direction (see FIG. 5).

  In the outdoor unit (1), the first compressor (3a) and the second compressor (3b) (each compressor (3) is covered with a cover as the compressor (3) in FIG. 3). (Not shown) are provided and are respectively fixed to the lower casing (20). Parts such as an accumulator (4), an oil separator (5), and an electrical component box (6) are also mounted on the lower casing (20).

  The upper casing (30) accommodates a fan (7) whose central axis of rotation extends in the vertical direction so as to blow air upward. Although not shown, a fan motor is provided below the fan (7). When the fan (7) is rotated, air is sucked into the lower casing (20) from the outside of the casing (2) through the outdoor heat exchanger (10), and the sucked air is moved upward by the fan (7). Blowing upward from the casing (30).

<Lower casing>
FIG. 5 is a perspective view of the lower casing (20) viewed from the front side. Although the outdoor heat exchanger (10) is shown in FIG. 5, the compressor (3) and other parts are omitted. The lower casing (20) has a rectangular base member (22), and four lower support columns (23) that stand on the four corners (corner portions) and extend in the vertical direction. In the lower space (S1) (first lower space (S1a) and second lower space (S1b)) surrounded by the base member (22) and each lower column (23), the outdoor heat exchanger (10) and Parts such as the compressor (3) are arranged.

  The base member (22) includes a bottom plate (22a) with unevenness in the left-right direction of the outdoor unit (1), and a long base leg (22b) fixed to the front and rear edges of the bottom plate (22a). ) And side stays (22c) fixed to the left and right side edges of the bottom plate (22a).

  The lower casing (20) is provided with a front side support plate (24) and a back side support plate (25) at the center of the front edge portion and the rear edge portion of the base member (22), respectively. . Moreover, the outer edge part of the 1st outdoor heat exchanger (10a) and the 2nd outdoor heat exchanger (10b) is being fixed to the said lower support | pillar (23) via the heat exchanger connection member (50). . The structure of the heat exchanger coupling member (50) will be described later.

<Upper casing>
FIG. 6 is a perspective view of the upper casing (30) as viewed from the front side. In the upper casing (30), a fan motor is fixed to a motor stay provided at the lower end of the upper casing (30) on both sides of the first unit (1A) and the second unit (2A). The fan (7) is mounted on the output shaft of the motor.

  The upper casing (30) has a top plate (32) composed of a frame member (32a) and a blowout grill (32b), and four upper struts (33) extending downward from the four corners. . In the upper space (S2) (first upper space (S2a) and second upper space (S2b)) surrounded by the top plate (32) and the upper column (33), the fan (7), fan motor, etc. Parts are placed.

  On the front side and the back side of the upper casing (30), stays (34), which are horizontally long reinforcing members that connect the lower ends of the left and right upper columns (33), are provided (rear side stays ( 34) is omitted. At the center of the upper casing (30) in the left-right direction, there is a space between the front part of the frame member (32a) and the stay (34) below it, and the rear part of the frame member (32a) and the stay below it ( 34) is connected to the central column (35).

  The upper casing (30) has a side panel (36) mounted on the left and right side surfaces, and two back panels (37) mounted on the back surface. As described above, the front surface of the upper casing (30) is closed by the front panel (front plate) (40) mounted across the upper casing (30) and the lower casing (20).

<Front panel>
The front panel (40) includes a first front plate (41), a second front plate (42), a third front plate (43), and a fourth front plate (from the right side to the left side in FIG. 44). The front panel (40) is provided with an opening for piping through which communication piping is passed, an opening for inspection, a cover plate, and the like.

  As described above, the first front plate (41), the second front plate (42), the third front plate (43), and the fourth front plate (44) of the front panel (40) are each a lower casing ( 20) A vertically long plate that covers from the lower end of 20) to the upper end of the upper casing (30). By removing one of these vertically long plates, you can access necessary equipment such as the compressor (3) and parts such as the electrical component box (6) in the lower space (S1), and the fan (7) and You can also access the fan motor.

<Assembly structure of casing>
The lower casing (20) contains refrigerant circuit components such as an outdoor heat exchanger (10) and a compressor (3). The lower casing (20) and various components constitute the lower unit (2A). Has been. On the other hand, in the upper casing (30), machine parts such as a fan motor and a fan (7) are accommodated, and an upper unit (2B) is constituted by the upper casing (30) and various parts.

  And as shown in FIG. 7, the said outdoor unit (1) is formed by combining a lower unit (2A) and an upper unit (2B), and also combining a front panel (40) and a back panel (37). It is like that.

<Structure of heat exchanger connecting member>
FIG. 8 is an enlarged perspective view of a state in which the first cover member (55) is attached to the connection portion between the lower support column (33) and the heat exchanger connection member (50), and FIG. FIG. 10 is an enlarged perspective view of the connecting portion between the lower support column (33) and the heat exchanger connecting member (50), and FIG. 11 is an enlarged perspective view of the connecting portion with the exchanger connecting member (50). Is a perspective view of the heat exchanger coupling member (50) viewed from the outside, FIG. 12 is a perspective view of the heat exchanger coupling member (50) viewed from the inside, and FIG. 13 is a sectional view taken along line XIII-XIII in FIG. .

  As shown in FIGS. 8 and 9, the heat exchanger coupling member (50) is attached to the lower support column (23) with screws (56). Although the specific shape of the heat exchanger coupling member (50) will be described later, it is configured to be slidable in the surface direction of the heat exchange part (11) with respect to the upper end part of the outdoor heat exchanger (10). Therefore, even if the position where the outdoor heat exchanger (10) is actually set deviates from the designed installation position, the outdoor heat exchanger (10) can be connected to the lower column (23).

  The lower column (23) is a long member in which the flat plate portions (23a, 23b) at both ends are bent in an L shape via a 45 ° inclined surface (23c) at the center. At the edge of the flat plate portion (23a, 23b) of the lower support column (23), an edge portion (23d, 23e) displaced in parallel from the flat plate portion (23a, 23b) to the inside of the casing (2) is formed. ing.

  The heat exchanger connecting member (50) includes a first connecting portion (51) attached to an upper end portion of the heat exchanging portion (11) and a second connecting portion (52) connected to the lower support column (23). And connecting the outdoor heat exchanger (10) to the lower support column.

  In this embodiment, the outdoor heat exchanger (10) has the heat exchange section (11) arranged vertically or substantially vertically. The first connecting part (51) is formed in a U-shaped cross section that opens downward so as to be fitted to the upper end of the heat exchange part (11) from above. The first connecting portion (51) includes a top plate portion (51a) and a side plate portion (51b) that is connected to the edge of the top plate portion (51a) in a state of being bent downward. The first connection part (52) is connected to the outer side plate part (51b) of the first connection part (51) and extends in the direction of the lower column (23), and the connection part (52a ) Further extending in the direction of the lower column (23) and overlapping the end edge (23e). A screw hole (52c) is formed in the joint portion (52b), and is fastened to the end edge portion (23e) with a screw (56).

  As shown in FIGS. 12 and 13, a seal material (53) is provided on the inner surface of the heat exchanger coupling member (50) so as to contact the upper end surface of the heat exchange section (11). The sealing material (53) is a holding material that holds the heat exchange part (10) with a frictional force, and is an electric decoration suppressing material that suppresses electrolytic corrosion. For the sealing material (53), for example, a rubber insulating material such as ethylene propylene diene rubber (EPDM) is used.

  As described above, the outdoor heat exchanger (10) is a multiple-row heat exchanger in which multiple rows of heat exchange sections (11) are arranged to overlap each other. And as shown in FIG. 13, as for the 1st connection part (51) of the said heat exchanger connection member (50), the side plate part (51b) pinches | interposes the upper end part of several rows of heat exchange parts (11) from the outer side. Thus, it is configured as an interval holding member that holds the intervals between the heat exchange portions (11) in a plurality of rows.

  On the other hand, as shown in FIG. 14, between the heat exchange part (10) arranged along the side surface of the casing (2) and the lower support (23), a metal first cover member ( 55) and a second cover member (57) made of EPDM, and both cover members (55, 57) close the gap between the heat exchange section (10) and the lower support column (23). It is peeling off. The first cover member (55) is painted with an insulating paint. The second cover member (57) is an insulating material made of EPDM. The said 1st cover member (55) is fixed to a heat exchanger connection member (50) with a lower support | pillar (23) as shown in FIG.

-Action of heat exchanger coupling member-
The heat exchanger connecting member (50) sandwiches and holds both the heat exchanging parts (11) arranged in two rows by the side plate part (51b) of the first connecting part (51). The multi-row heat exchanger of this embodiment has a structure in which a flat tube is connected to the header collecting pipe (13), and it is difficult to bend and form each row in parallel at all locations. In some cases, a gap (opening) may occur. On the other hand, if the heat exchanger coupling member (50) of the present embodiment is used, it is possible to suppress the occurrence of a gap (opening) at the end of the multi-row outdoor heat exchanger (10).

  On the other hand, the first connection part (51) is movable in the surface direction of the heat exchange part (11). This is useful in that the following effects occur.

  The outdoor heat exchanger (10) has three flat plate portions (11) and two bent portions (12), for example, the flat plate portion (11) on the back side of the outdoor unit (1). When installed in the lower casing (20), the position of the end of the outdoor heat exchanger (10) on the lower support (23) side usually has some errors for each product of the outdoor unit (1). It is. In contrast, in the present embodiment, the heat exchanger coupling member (50) is mounted on the upper end of the outdoor heat exchanger (10) so as to be movable in the surface direction (Y direction in FIG. 7). The outdoor heat exchanger (10) can be connected to the lower column (23) by absorbing the displacement of the end portion of the heat exchanger (10). That is, even if the position of the end portion of the heat exchanging portion (11) is deviated to some extent in the Y direction depending on the product, the heat exchanger connecting member (50) can absorb the positional deviation and be connected to the support column. Therefore, it does not matter that the position of the end portion in the surface direction of the outdoor heat exchanger (10) is not constant for each product.

  Conversely, the heat exchanger coupling member (50) attached to the lower column (23) sandwiches the heat exchange part (11) of the outdoor heat exchanger (10) with the side plate part (51b), and the direction perpendicular to the surface ( The position is constant in the X direction in FIG. That is, since the heat exchanger connecting member (50) is fixed to the lower support column (23), the heat exchanger (11) sandwiched and held between the side plates (51b) of the heat exchanger connecting member (50). ) End position is constant for each product in the X direction. Therefore, the position of the heat exchanging part (11) with respect to the side surface of the casing (2) (position in the X direction) is constant for each product of the outdoor unit (1), and variation can be suppressed.

  On the other hand, in the present embodiment, since EPDM is provided as a sealing material (53) between the heat exchanger coupling member (50) and the outdoor heat exchanger (10), the second of the heat exchanger coupling member (50) is provided. 1 connection part (51) does not move freely with respect to the upper end part of an outdoor heat exchanger (10) by the frictional resistance of a sealing material (53). That is, the position of the end portion of the outdoor heat exchanger (10) is stabilized.

  Moreover, the sealing material (53) provided between the heat exchanger connecting member (50) and the upper end of the outdoor heat exchanger (10), the first cover member (55), and the outdoor heat exchanger (10) Each of the second cover members (57) provided between the side surfaces is made of EPDM and has an insulating property. This outdoor heat exchanger (10) is an aluminum heat exchanger, and there is a possibility that electric corrosion occurs due to current flowing through the condensed water generated on the surface, but in this embodiment, the outdoor heat exchanger (10) Since insulating EPDM is used between 10) and other members, the occurrence of electrolytic corrosion is suppressed.

  Moreover, the said 1st cover member (55) and the 2nd cover member (57) block | close the clearance gap between a heat exchange part (11) and a lower support | pillar (23). Accordingly, air that does not pass through the outdoor heat exchanger (10) does not flow into the casing (2).

-Effect of Embodiment 1-
According to this embodiment, the outdoor unit (1) includes an outdoor heat exchanger (10) having a bent portion (12) between a plurality of plate-like heat exchange portions (11), and a column ( 23) and a casing (2) in which the outdoor heat exchanger (10) is accommodated in an internal space, and a first connection part (51) attached to the upper end of the heat exchange part (11) A heat exchanger coupling member (50) having a second coupling part (52) coupled to the column (23) and coupling the outdoor heat exchanger (10) to the column (23). Yes.

  Therefore, the 1st connection part (51) of a heat exchanger connection member (50) is mounted | worn with the upper end of a plate-shaped heat exchange part (11), and the 2nd connection part (52) of a heat exchanger connection member (50). The outdoor heat exchanger (10) can be easily attached to the casing (2) simply by attaching it to the lower column (23), so that a structure for attaching the outdoor heat exchanger (10) to the casing with a simple structure can be realized. .

  In the present embodiment, in the outdoor heat exchanger (10), the heat exchanging part (11) is arranged substantially vertically, and the first connecting part (51) is arranged at the upper end of the heat exchanging part (11). Since it is formed in a U-shaped cross section that opens downward so as to be fitted from above, the first coupling part (51) can be simply fitted into the heat exchange part (11) from above. Can be attached to the heat exchanger (11). Specifically, the heat exchanger connecting member (50) holds and holds the upper end portion of the heat exchanging portion (11) with the side plate portion (51b) of the first connecting portion (51). The heat exchanger coupling member (50) can be attached to the heat exchange part (11).

  Further, in the present embodiment, the outdoor heat exchanger (10) is a multi-row heat exchanger (10) in which a plurality of heat exchanging portions (11) are arranged to overlap each other, and the heat exchanger coupling The 1st connection part (51) of a member (50) is comprised as a space | interval holding member which fits to the upper end part of this heat exchange part (11) of several rows, and hold | maintains the space | interval of each heat exchange part (11). ing. Specifically, both the heat exchange parts (11) arranged in two rows are sandwiched and held by the side plate part (51b) of the first connection part (51).

  As described above, the multi-row (two-row) type outdoor heat exchanger (10) of the present embodiment has a structure in which a flat tube is connected to the header collecting pipe (13), and each row is parallel at all points. It is difficult to bend and form gaps (openings) at the end of each row. On the other hand, according to the present embodiment, the first connection portion (51) is fitted to the two rows of heat exchange portions (11), thereby connecting the outer surface of the two rows of heat exchange portions (11) to the first connection. Since the side plate part (51b) of the part (51) holds down, the occurrence of a gap (opening) at the end of the heat exchange part (11) is suppressed, and the interval between the heat exchange parts (11) is maintained.

  On the other hand, since the 1st connection part (51) can move to the surface direction of a heat exchange part (11), even if the position of the end of an outdoor heat exchanger (10) has shifted slightly for every product, The displacement of the position can be absorbed. That is, since the outdoor heat exchanger (10) has a bent portion (12), for example, the outdoor heat exchanger (10) is attached to the lower casing (20) with reference to the flat plate portion (11) on the back side of the outdoor unit (1). In this embodiment, the position of the end of the outdoor heat exchanger (10) on the lower support (23) side has a certain degree of error for each product of the outdoor unit (1). Since the connecting member (50) is mounted on the upper end of the outdoor heat exchanger (10) so as to be movable in the surface direction, the position of the end of the outdoor heat exchanger (10) is absorbed to prevent outdoor heat The exchanger (10) can be easily connected to the lower column (23).

  In addition, the heat exchanger coupling member (50) attached to the lower column (23) sandwiches the heat exchange part (11) of the outdoor heat exchanger (10) with the side plate part (51b), and the heat exchange part (11) Is fixed in the direction perpendicular to the surface. Therefore, the position of the heat exchange part (11) with respect to the side surface of the casing (2) is constant for each product.

  In the outdoor unit (1) of the present embodiment, the heat exchanger connecting member (50) is provided with a sealing material (53) in contact with the upper end of the heat exchanging part (11) in the first connecting part (51). The sealing material (53) is a holding material that holds the heat exchanging portion (11) with a frictional force and is an electrolytic corrosion suppressing material. Therefore, the frictional force of the sealing material (53) acts between the first connecting portion (51) and the upper end portion of the outdoor heat exchanger (10), and the outdoor heat exchanger (10) becomes the heat exchanger connecting member ( 50) can be prevented from shifting. Since the outdoor heat exchanger (10) does not move freely with respect to the heat exchanger coupling member (50) due to the frictional resistance of the sealing material (53), the position of the end of the outdoor heat exchanger (10) Is stable. In addition, by providing the sealing material (53), it is difficult for current to flow through water (such as condensed water) adhering to the surface of the outdoor heat exchanger (10), so that the occurrence of electrolytic corrosion can be suppressed. Therefore, the aluminum outdoor heat exchanger (10) of this embodiment can be prevented from being damaged.

  In this embodiment, first and second cover members that cover a gap formed between the heat exchanging portion (11) disposed along the side surface of the casing (2) and the lower support column (23) ( 55, 57), the first cover member (55) is directly fixed to the heat exchanger connecting member (50), and the second cover member is attached to the heat exchanger connecting member (50). Is fixed through. Therefore, the gap formed between the heat exchange part (11) and the lower support (23) of the outdoor heat exchanger (10) is closed by the first and second cover members (55, 57). Air that does not pass through the heat exchanger (10) is prevented from flowing into the casing (2). Therefore, it can suppress that heat exchange efficiency falls. Moreover, since the 2nd cover member is formed with EPDM which is an insulating material, it has a high effect also with respect to suppressing electric corrosion.

<< Other Embodiments >>
About the said embodiment, it is good also as the following structures.

-First modification-
In the above embodiment, the outdoor heat exchanger (10) is a multi-row (two-row) type heat exchanger, and the heat exchanger connecting member (50) is the heat exchanging portion (11) at the first connecting portion (51). While the plurality of rows are held while being held, the outdoor heat exchanger (10) does not necessarily have to be a plurality of rows.

-Second modification-
In the case of a multi-row outdoor heat exchanger (10), the outdoor heat exchanger (10) has a flat heat exchanger with a flat tube connected between the header collecting pipes (13) located on both sides. If the structure is folded back and overlapped and then folded into a U-shape, each row is likely to open on the header collecting pipe (13) side, so the heat exchanger connecting member (50) on the header collecting pipe (13) side. It is effective to hold the interval between each row by attaching. However, it is not necessary to limit the attachment position of the heat exchanger coupling member (50) to that position.

  In addition, even in the case of a so-called cross fin heat exchanger in which a large number of heat transfer tubes pass through fins and the ends of the heat transfer tubes are connected by U-shaped tubes, the heat exchanger has a flat plate portion and a bent portion. Then, the structure of this indication which attaches a heat exchanger connection member to the upper end part of a heat exchange part, and attaches to a support | pillar (23) is effective as an attachment structure of the outdoor heat exchanger (10) with respect to a casing (2). . In addition, when the heat exchanger is formed using a copper tube or a copper plate, it is effective to provide a sealing material for the purpose of holding the position by frictional resistance, but for the purpose of suppressing electrolytic corrosion, a sealing material is not provided. May be.

-Third modification-
The specific configuration (shape) of the heat exchanger coupling member (50) is not necessarily limited to that described in the above embodiment. In short, the heat exchanger connecting member (50) includes a first connecting portion (51) attached to the upper end portion of the heat exchanging portion (11) and a second connecting portion connected to the casing (2) strut (23). As long as the outdoor heat exchanger (10) is connected to the support (23), the shape and configuration may be changed as appropriate.

-Fourth modification-
In the embodiment described above, the outdoor unit (1) in which the first unit (1A) and the second unit (1B) arranged on the left and right are integrated has been described. However, the outdoor unit (1) of the present disclosure has one It may consist only of units. In other words, in the above-described embodiment, the outdoor unit (1) is configured with two outdoor heat exchangers (10a, 10b), but the outdoor unit (1) has only one outdoor heat exchanger (10). You may make it the structure which consists of. In that case, the number and size of the outdoor heat exchangers may be determined according to the required capacity of the outdoor heat exchanger.

-Fifth modification-
In the above embodiment, the front panel (40) is formed as a member spanning the lower casing (20) and the upper casing (30) so as to cover from the lower end of the lower casing (20) to the upper end of the upper casing (30). However, the front panel (40) may be divided into upper and lower parts and attached to the lower casing (20) and the upper casing (30), respectively.

  While the embodiments and the modifications have been described above, various changes in form and details can be made without departing from the spirit and scope of the claims. In addition, the above embodiments and modifications may be appropriately combined or replaced as long as the functions of the subject of the present disclosure are not impaired.

  As described above, the present disclosure is useful for an outdoor unit of an air conditioner.

1 Outdoor unit
2 Casing
10 Heat exchanger
11 Heat exchanger
12 Folding part
23 Lower support (support)
50 Heat exchanger coupling member
51 First connecting part
52 Second connecting part
53 Sealing material
55 First cover member
57 Second cover member

Claims (5)

An outdoor unit of an air conditioner,
A heat exchanger (10) having a bent portion (12) between a plurality of plate-like heat exchange portions (11);
A casing (2) having struts (23) at corners and accommodating the heat exchanger (10) in an internal space;
The heat exchanger (11) includes a first connecting portion (51) attached to an upper end portion of the heat exchanger (11) and a second connecting portion (52) connected to the support column (23), and the heat exchanger (10 ) To the support column (23), a heat exchanger coupling member (50),
An outdoor unit of an air conditioner characterized by comprising: In claim 1,
In the heat exchanger (10), the heat exchange part (11) is arranged vertically or almost vertically,
The first connection part (51) is formed in a U-shaped cross section that opens downward so as to be fitted from above to the upper end part of the heat exchange part (11). Outdoor unit. In claim 1 or 2,
The heat exchanger coupling member (50) has a sealing material (53) provided on the first coupling part (51) so as to be in contact with the upper end of the heat exchange part (11).
The outdoor unit of an air conditioner, wherein the sealing material (53) is a holding material that holds the heat exchanging portion (11) with a frictional force and is an electrolytic corrosion suppression material. In claim 3,
The heat exchanger (10) is a multi-row heat exchanger (10) in which a plurality of heat exchange sections (11) are arranged to overlap each other,
The 1st connection part (51) of the said heat exchanger connection member (50) fits to the upper end part of the heat exchange part (11) of several rows, and hold | maintains the space | interval which maintains the space | interval of each heat exchange part (11) An outdoor unit for an air conditioner, characterized in that the outdoor unit is configured as a member. In any one of Claims 1-4,
A cover member (55, 57) covering a gap formed between the heat exchange part (11) arranged along the side surface of the casing (2) and the support column (23);
The outdoor unit for an air conditioner, wherein the cover member (55, 57) is configured to be fixed to the heat exchanger coupling member (50).