CN104220815A - Outdoor unit for air conditioner - Google Patents

Abstract

Inside the outdoor unit (11), a limiting portion (101) is connected to the gas-liquid separator foot (26a) near the first collective header (51). The limiting part (101) is configured to extend from the gas-liquid separator foot (26a) toward the first collecting pipe (51) and limit the movement of the first collecting pipe (51).

Description

Outdoor unit of air conditioner

technical field

The present invention relates to an outdoor unit of an air conditioner, and more particularly, to an outdoor unit that improves the position deviation of a header header of a heat exchanger installed in the outdoor unit.

Background technique

Heretofore, a parallel flow heat exchanger installed in an outdoor unit of an air conditioner has been known. For example, the heat exchanger disclosed in Patent Document 1 is made of aluminum. The other end of the collective manifold is inserted into a plurality of flat tubes of another collective manifold, and a plurality of fins joined to the flat tubes. In this heat exchanger, heat is exchanged between the refrigerant flowing in the flat tubes and the air passing between the fins.

In a conventional heat exchanger, an insulating rubber member is sometimes provided on the bottom plate of the body, and the collective header is supported from below by the rubber member. By doing so, the heat exchanger is prevented from vibrating, and the collective header is insulated from the bottom plate to prevent corrosion (galvanic corrosion) of the header.

Patent Document 1: Japanese Patent Laid-Open Publication No. 2010-249388

Contents of the invention

－The technical problem to be solved by the invention－

However, if an adhesive is used to fix the rubber part, sometimes condensed water dripping from the heat exchanger enters into the adhesive to reduce the adhesive force of the adhesive, so that the position of the rubber part deviates from this. situation occurs. In addition, when the refrigerant is condensed by the heat exchanger during the cooling operation, the rubber parts may soften and deform due to condensation heat. In such a case, there is a problem that the position of the header on the rubber member may be largely deviated, and if the attitude of the heat exchanger is inclined due to the positional deviation, the connecting pipes, etc. may be skewed. Then the vibration of the compressor will resonate and abnormal sounds will occur.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to prevent the occurrence of abnormal sound caused by the positional deviation of the total collecting pipe.

－Technical solutions to solve technical problems－

The invention of the first aspect is aimed at an outdoor unit of an air conditioner, which includes a body 40 and a heat exchanger 23 having two main shafts installed vertically inside the body 40. Collective tubes 51, 52, a plurality of flat tubes 53 and a plurality of fins 55 joined to the flat tubes 53, the plurality of flat tubes 53 are arranged in the vertical direction between the two collective tubes 51, 52, the One end of the plurality of flat tubes 53 is inserted into one collective manifold 51 , 52 , and the other end of the plurality of flat tubes 53 is inserted into the other collective manifold 51 , 52 . The invention of the first aspect is characterized in that the outdoor unit of the air conditioner is equipped with: a support portion 91b that is installed on the bottom plate 41 of the above-mentioned body 40 and supports the above-mentioned collective headers 51, 52 from below; Nearby components extend toward the collective manifolds 51 , 52 , and are stoppers 101 that restrict the movement of the collective manifolds 51 , 52 .

In the first aspect of the invention, the stopper 101 is provided near the manifolds 51 and 52, and the movement of the manifolds 51 and 52 is restricted by the stopper 101. Thus, for example, when the posture of the heat exchanger 23 is inclined and the positions of the header pipes 51 and 52 are greatly deviated, the positional deviation of the header pipes 51 and 52 is suppressed by the stopper 101 .

The invention of the second aspect is based on the invention of the first aspect, and has the following characteristics, that is, the above-mentioned collective collecting pipes 51, 52 are provided with insulating external connection parts connected to the collective collecting pipes 51, 52 from the outside. 91c, the stopper 101 restricts the movement of the collective headers 51, 52 via the outer contact portion 91c.

In the second aspect of the invention described above, the movement of the collective manifolds 51 and 52 is restricted in a state where the insulating outer connection portion 91c is interposed between the collective manifolds 51 and 52 and the stopper 101 . As a result, the collective headers 51, 52 and the stopper 101 are insulated from each other by the outer connection portion 91c.

The third aspect of the invention is based on the second aspect of the invention, and has the following characteristics: the stopper 101 controls the movement of the collective headers 51, 52 in a state of surface contact with the outer contact portion 91c. limit.

In the third aspect of the invention, since the stopper 101 and the circumscribed portion 91c are in surface contact, the restricted state in which the stopper 101 is restricted via the circumscribed portion 91c is stabilized.

The fourth aspect of the invention is based on the second aspect of the invention or the third aspect of the invention, and has the following characteristics, that is: the above-mentioned support portion 91b has insulation properties, and the support portion 91b is connected to the upper surface of the support portion 91b. In the state where the lower surfaces of the above-mentioned collective collecting pipes 51, 52 are in contact, the above-mentioned collective collecting pipes 51, 52 are supported from below. It protrudes upward and connects with the above-mentioned collective headers 51 and 52 from the outside.

In the fourth aspect of the invention, the outer contact portion 91c and the support portion 91b are integrally formed of an insulating material. As a result, the total collecting pipes 51, 52 are insulated from the bottom plate 41, and the total collecting pipes 51, 52 are insulated from the stopper 101, and the number of parts is also reduced.

The invention of the fifth aspect is based on the invention of the first aspect, and has the following characteristics, that is, the above-mentioned limiting part 101 is directly connected to the above-mentioned limiting part 101 through the above-mentioned collective collection pipes 51 and 52. The movement of the above-mentioned total manifolds 51, 52 is restricted.

In the above fifth aspect of the invention, since there is no object interposed between the collective collecting pipes 51, 52 and the limiting portion 101, the position accuracy of the collective collecting pipes 51, 52 restricted by the limiting portion 101 is improved.

The invention of the sixth aspect is based on the invention of any one of the first to fifth aspects above, and has the following characteristics, that is, the above-mentioned limiting part 101 is substantially horizontal and roughly in line with the elongation direction of the above-mentioned flat tube 53 . The movement of the above-mentioned collective headers 51 and 52 is restricted in the vertical direction.

In the sixth aspect of the invention, the posture of the heat exchanger 23 tends to be inclined in a direction that is substantially horizontal and substantially perpendicular to the direction in which the flat tubes 53 extend, and the positional deviation of the header pipes 51 and 52 is also likely to be in this direction. happened on. However, in the sixth aspect of the invention described above, the stopper 101 is provided in the direction in which the positional deviation of the collective headers 51 and 52 is likely to occur. As a result, relatively frequent positional deviation of the first header header 51 is reliably suppressed.

－Effects of the invention－

According to the first aspect of the invention, a limiting portion 101 is provided near the collective manifolds 51 , 52 , and the movement of the collective manifolds 51 , 52 is restricted by the limiting portion 101 . In this way, positional deviation of the header headers 51 and 52 can be suppressed, and the posture of the outdoor heat exchanger 23 can be stably maintained. As a result, it is possible to prevent the heat exchanger from being tilted so that the connecting pipe is skewed, and that the vibration of the compressor resonates due to the skewing of the connecting pipe to cause abnormal sound.

According to the invention of the second aspect, in a state where the insulating outer connection portion 91c is in contact with the main collection pipes 51, 52 from the outside, and the outer connection portion 91c is interposed between the main collection pipes 51, 52 and the stopper 101 , the movement of the total manifolds 51, 52 is restricted. In this way, the collective collecting pipes 51, 52 and the stopper 101 can be insulated by the outer contact portion 91c, and corrosion (galvanic corrosion) of the collective collecting pipes 51, 52 can be prevented.

According to the third aspect of the invention, the movement of the header pipes 51 and 52 is restricted in a state where the stopper portion 101 is in surface contact with the outer contact portion 91c. This stabilizes the restricted state in which the stopper 101 restricts via the circumscribed portion 91c, reliably suppresses the positional deviation of the manifolds 51, 52, and improves the reliability of preventing abnormal noise.

According to the fourth aspect of the invention, the outer connection portion 91c and the support portion 91b that supports the header pipes 51, 52 from below are integrally formed of an insulating material. In this way, the collective collecting pipes 51, 52 can be insulated from the bottom plate 41, and the collective collecting pipes 51, 52 and the stopper 101 can be insulated, so that the collective collecting pipes 51, 52 can be further prevented from being corroded (electrical corrosion). . Furthermore, cost reduction can be achieved by reducing the number of parts, and downsizing of parts can also be achieved.

According to the fifth aspect of the invention, the movement of the collective manifolds 51 and 52 is restricted by directly contacting the collective manifolds 51 and 52 with the stopper 101 . In this way, the positional accuracy of the collective manifolds 51 , 52 regulated by the position-limiting portion 101 can be improved.

According to the sixth aspect of the invention, the stopper 101 is provided in a direction in which the attitude of the heat exchanger 23 is inclined and the position of the manifold headers 51 and 52 is likely to be displaced. By doing so, it is possible to reliably suppress the relatively frequent positional deviation of the header pipes 51 and 52, and it is possible to improve the reliability of preventing the occurrence of abnormal sound.

Description of drawings

FIG. 1 is a refrigerant circuit diagram showing a schematic configuration of an air conditioner according to a first embodiment.

Fig. 2 is an external perspective view of the outdoor unit of the first embodiment.

Fig. 3 is a plan view of the outdoor unit according to the first embodiment with the top plate removed.

Fig. 4 is a perspective view showing an installed state of the outdoor heat exchanger according to the first embodiment.

Fig. 5 is a partial sectional view of the outdoor heat exchanger according to the first embodiment.

FIG. 6 is an enlarged cross-sectional view of a part of the VI-VI cross-section in FIG. 5 .

Fig. 7 is a perspective view of the outdoor unit according to the first embodiment in a state where the top plate and side plates are removed.

FIG. 8 is an enlarged view of a main part (positional deviation suppressing structure) in FIG. 7 .

FIG. 9 is a plan view showing the positional deviation suppression structure of the first embodiment.

Fig. 10 is a cross-sectional view along line XX in Fig. 9 .

FIG. 11 is a longitudinal sectional view showing a positional displacement suppression structure of another embodiment.

12( a ) and FIG. 12( b ) are vertical cross-sectional views showing a positional deviation suppression structure of another embodiment.

13( a ) and FIG. 13( b ) are longitudinal cross-sectional views showing a positional deviation suppression structure of another embodiment.

FIG. 14 is a plan view showing a positional displacement suppression structure of another embodiment.

Detailed ways

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following preferred embodiments are merely examples in nature, and are not intended to limit the scope of the present invention, its application objects or uses.

[First Embodiment of the Invention]

A first embodiment of the present invention will be described. The outdoor unit 2 of the present embodiment constitutes a part of the air conditioner 1, and the outdoor unit 2 is installed outdoors, for example. Hereinafter, the overall structure of the air conditioner 1 will be described first, and then the structure of the outdoor unit 2 will be described.

<Overall structure of the air conditioner>

As shown in FIG. 1 , the air conditioner 10 includes an outdoor unit 11 and an indoor unit 12 . The outdoor unit 11 and the indoor unit 12 are connected through a liquid-side connecting pipe 13 and an air-side connecting pipe 14 . Further, a refrigerant circuit 20 is formed by the outdoor unit 11 , the indoor unit 12 , the liquid-side connection pipe 13 , and the gas-side connection pipe 14 .

The refrigerant circuit 20 includes a compressor 21 , a four-way reversing valve 22 , an outdoor heat exchanger 23 , an expansion valve 24 , an indoor heat exchanger 25 , and a gas-liquid separator 26 . The compressor 21 , four-way reversing valve 22 , outdoor heat exchanger 23 , expansion valve 24 and gas-liquid separator 26 are installed in the outdoor unit 11 . An outdoor fan 15 that supplies outdoor air to the outdoor heat exchanger 23 is provided in the outdoor unit 11 . On the other hand, the indoor heat exchanger 25 is installed in the indoor unit 12 . The indoor unit 12 is provided with an indoor fan 16 that supplies indoor air to the indoor heat exchanger 25 .

The discharge side of the compressor 21 is connected to the first valve port of the four-way reversing valve 22 , and the suction side of the compressor 21 is connected to the second valve port of the four-way reversing valve 22 via the gas-liquid separator 26 . In the refrigerant circuit 20 , an outdoor heat exchanger 23 , an expansion valve 24 and an indoor heat exchanger 25 are arranged sequentially from the third valve port toward the fourth valve port of the four-way reversing valve 22 .

The compressor 21 is a scroll or rotary hermetic compressor. The four-way reversing valve 22 communicates with the third valve port at the first valve port and the first state (the state shown by the solid line in Fig. 1 ) that the second valve port communicates with the fourth valve port, and the first valve port Switching is performed between the second state (the state shown by the dotted line in FIG. 1 ) that communicates with the fourth valve port and that the second valve port communicates with the third valve port. The expansion valve 24 is a so-called electronic expansion valve.

The outdoor heat exchanger 23 exchanges heat between the outdoor air and the refrigerant, and constitutes the heat exchanger of the present invention. The outdoor heat exchanger 23 is described below. The indoor heat exchanger 25 exchanges heat between the indoor air and the refrigerant. The indoor heat exchanger 25 is constituted by a so-called horizontal-fin-tube heat exchanger provided with heat transfer tubes that are circular tubes.

The gas-liquid separator 26 separates the refrigerant into gas and liquid, and sucks only the gaseous refrigerant into the compressor 21 .

<Operation of air conditioner>

The air conditioner 10 selectively performs cooling operation and heating operation.

In the refrigerant circuit 20 during the cooling operation, the refrigeration cycle is performed with the four-way selector valve 22 set to the first state. In this state, the refrigerant circulates through the outdoor heat exchanger 23 , the expansion valve 24 , the indoor heat exchanger 25 , and the gas-liquid separator 26 in this order. In the outdoor heat exchanger 23 , the refrigerant discharged from the compressor 21 releases heat to the outdoor air to be condensed. On the other hand, in the indoor heat exchanger 25 , the refrigerant expanded when passing through the expansion valve 24 absorbs heat from the indoor air and evaporates. The indoor unit 12 supplies the taken-in indoor air to the indoor heat exchanger 25, and blows the air cooled by the indoor heat exchanger 25 into the room.

In the refrigerant circuit 20 during the heating operation, the refrigeration cycle is performed with the four-way selector valve 22 set to the second state. In this state, the refrigerant circulates through the indoor heat exchanger 25 , the expansion valve 24 , the outdoor heat exchanger 23 , and the gas-liquid separator 26 in this order. In the indoor heat exchanger 25 , the refrigerant discharged from the compressor 21 releases heat to the indoor air to be condensed. The indoor unit 12 supplies the indoor air taken in to the indoor heat exchanger 25 and blows the air heated by the indoor heat exchanger 25 into the room. On the other hand, in the outdoor heat exchanger 23 , the refrigerant expanded when passing through the expansion valve 24 absorbs heat from the outdoor air and evaporates.

<Structure of the outdoor unit>

Next, the outdoor unit 11 will be described with reference to FIGS. 2 and 3 . In addition, as long as there is no special notice in advance, "upper", "lower", "left", "right", "front", and "rear" used in the description here all refer to the view from the front side. Direction of machine 11 o'clock.

The outdoor unit 11 includes a casing 40 . The casing 40 is an iron box having a long vertical length and is formed in a substantially rectangular parallelepiped shape, and the casing 40 constitutes the body of the present invention. The casing 40 has a bottom plate 41, a front side plate 42a, a left side plate 42b, a rear side plate 42c, and a right side plate 42d standing on the bottom plate 41, and a top plate provided on the upper ends of the side plates 42a to 42d. 43. The left-right direction is the long-side direction.

Inside the cabinet 40, a partition plate 44 extending from the front side plate 42a toward the rear (along the short side direction) in an arc shape in plan view is provided upright. The internal space of the casing 40 is partitioned by the partition plate 44 into the blower chamber S1 on the left and the machine chamber S2 on the right. The outdoor heat exchanger 23 and the outdoor fan 15 are installed in the blower chamber S1. On the other hand, a compressor 21 , a four-way selector valve 22 (not shown in FIG. 3 ), an expansion valve 24 (not shown in FIG. 3 ), and a gas-liquid separator 26 are installed in the machine room S2 .

The rear side suction port 45a is opened on the side of the blower chamber S1 on the rear side plate 42c of the casing 40, and the left side suction port 45b is opened on the left side plate 42b. These two suction ports 45a and 45b are used to suck air (outside air) into the blower chamber S1.

The air outlet 46 is opened on the side of the blower chamber S1 on the front side plate 42 a of the casing 40 . The air outlet 46 is used to blow air (outside air) from the inside of the blower chamber S1 to the outside. A fan grill 47 is fitted into the air outlet 46 .

<Structure of outdoor heat exchanger>

Next, the outdoor heat exchanger 23 will be described with reference to FIGS. 3 to 6 .

As shown in FIG. 3 and FIG. 4 , the outdoor heat exchanger 23 is formed in a substantially "L" shape in plan view, and is provided facing the two suction ports 45a, 45b in the blower chamber S1.

As shown in FIG. 5 , the outdoor heat exchanger 23 includes a first header header 51 , a second header header 52 , a plurality of flat tubes 53 , and a plurality of fins 55 . The first header pipe 51, the second header pipe 52, the flat tubes 53, and the fins 55 are all made of aluminum and joined to each other by brazing.

Both the first collecting pipe 51 and the second collecting pipe 52 are formed in an elongated cylindrical shape with both ends closed. As shown in Figure 3, in the blower chamber S1, the first collecting pipe 51 is vertically arranged between the rear side plate 42c and the partition plate 44, and the second collecting pipe 52 is vertically arranged between the front side plate 42a and the left side. The corners sandwiched by the plates 42b.

As shown in FIG. 6 , the flat tube 53 is a heat transfer tube whose cross section is flat and oblong, and a plurality of fluid passages 54 arranged in a row are formed inside. As shown in FIG. 5 , the plurality of flat tubes 53 are arranged in the vertical direction at a predetermined interval with their respective flat sides facing each other, and are substantially parallel to each other.

As shown in FIGS. 3 and 4 , the flat tube 53 is formed in an approximately "L" shape when viewed from a plan view, and has a long side portion 53a extending in the left-right direction (long side direction) in FIG. The short side part 53b extended in the front-back direction (short side direction). The long side portion 53a of the flat tube 53 faces the rear side suction port 45a, and the end portion of the long side portion 53a is inserted into the first collective pipe 51, and the plurality of fluid passages 54 inside the long side portion 53a are connected to the first collective pipe. The internal spaces of 51 are connected. On the other hand, the short side portion 53b of the flat pipe 53 faces the left side suction port 45b, and the end portion of the short side portion 53b is inserted into the second manifold 52, and the plurality of fluid passages 54 inside the short side portion 53b are connected to the first The internal spaces of the two collective headers 52 communicate.

As shown in FIGS. 5 and 6 , the fin 55 is a vertically long plate-shaped fin formed by pressing a metal plate. The plurality of fins 55 are arranged at a certain distance from each other in the extending direction of the flat tube 53, and are configured so that air (outdoor air) flows from the adjacent fins from the side of the suction ports 45a, 45b toward the side of the blower chamber S1. Pass between pieces 55. Notches 56 are formed at constant intervals in the up-down direction on the fins 55 on the side of the suction ports 45a and 45b on the windward side. The flat tube 53 is inserted into the leeward portion of each notch 56 .

As shown in FIG. 5, the outdoor heat exchanger 23 is divided into an upper main heat exchange area 61 and a lower auxiliary heat exchange area 62, and each heat exchange area 61, 62 is divided into three upper and lower heat exchange parts respectively. 61a-61c, 62a-62c. Specifically, a first main heat exchange portion 61 a , a second main heat exchange portion 61 b , and a third main heat exchange portion 61 c are sequentially formed in the main heat exchange region 61 from bottom to top. A first auxiliary heat exchange portion 62 a , a second auxiliary heat exchange portion 62 b , and a third auxiliary heat exchange portion 62 c are sequentially formed in the auxiliary heat exchange region 62 from bottom to top. The number of the flat tubes 53 which comprise each main heat exchange part 61a-61c is larger than the number of the flat tubes 53 which comprise each auxiliary heat exchange part 62a-62c.

The internal space of the first header header 51 is partitioned into an upper space 71 and a lower space 72 by a partition plate 51 a. The upper space 71 communicates with all the flat tubes 53 constituting the main heat exchange area 61 , and the lower space 72 communicates with all the flat tubes 53 constituting the auxiliary heat exchange area 62 . The gas-side connecting pipe 75 and the liquid-side connecting pipe 76 are connected to the first collective header 51 . One end of the gas-side connecting pipe 75 is connected to the upper part of the first collective manifold 51 to communicate with the upper space 71 , and the other end of the gas-side connecting pipe 75 is connected to the third valve port of the four-way reversing valve 22 . One end of the liquid-side connecting pipe 76 is connected to the lower part of the first collective header 51 to communicate with the lower space 72 , and the other end of the liquid-side connecting pipe 76 is connected to the expansion valve 24 .

The inner space of the second collective header 52 is divided into a main communication space 81 corresponding to the main heat exchange area 61 and an auxiliary communication space 82 corresponding to the auxiliary heat exchange area 62 . The main communicating space 81 is divided into a first partial space 81a, a second partial space 81b and a third partial space 81c sequentially from bottom to top by two partitions 52a. Each of the partial spaces 81a to 81c communicates with all the flat tubes 53 constituting each of the main heat exchange portions 61a to 61c.

The auxiliary communicating space 82 is divided into a fourth sub-space 82a, a fifth sub-space 82b and a sixth sub-space 82c from bottom to top by two partitions 52b. Each of the partial spaces 82a to 82c communicates with all the flat tubes 53 constituting each of the auxiliary heat exchange portions 62a to 62c.

Two connecting pipes 85 , 86 are installed on the second collective header 52 . One end of the first connection duct 85 is connected to the second subspace 81b, and the other end of the first connection duct 85 is connected to the fifth subspace 82b. One end of the second connection duct 86 is connected to the third subspace 81c, and the other end of the second connection duct 86 is connected to the fourth subspace 82a. In the second collective header 52, the first subspace 81a and the sixth subspace 82c form a space connected to each other.

As shown in FIGS. 4 and 7 , in the casing 40 , the outdoor heat exchanger 23 is supported by three rubber members 91 to 93 and four mounting members 95 .

Two mounting parts 95 are respectively provided on each of the collective headers 51 and 52 . As shown in FIG. 7 , each mounting member 95 has an aluminum bracket 96 , an iron mounting plate 97 , and an insulating resin cover 98 . Brackets 96 are fixed on the respective manifolds 51, 52, mounting plates 97 are fixed on the side plates 42b, 42c of the casing 40, and the brackets 96 and mounting plates 97 are fixed inside the resin cover 98 in an insulated state. By doing so, electrical contact between the collective headers 51, 52 and the cabinet 40 is avoided, and corrosion (galvanic corrosion) of the collective headers 51, 52 is prevented.

As shown in FIG. 4 , the rubber members 91 to 93 are substantially plate-shaped rubber materials having insulating properties, and the rubber members 91 to 93 are bonded and fixed to the bottom plate 41 with an adhesive. The first rubber member 91 is provided between the rear side plate 42c and the partition plate 44, and the first rubber member 91 supports the first manifold 51 from below. The second rubber member 92 is provided at a corner between the rear side plate 42c and the left side plate 42b, and the second rubber member 92 supports the plurality of fins 55 from below. The third rubber member 93 is provided at a corner between the front side plate 42a and the left side plate 42b, and the third rubber member 93 supports the second manifold 52 from below. These three rubber members 91 to 93 prevent the outdoor heat exchanger 23 from vibrating, and avoid electrical contact between the outdoor heat exchanger 23 and the cabinet 40, preventing the outdoor heat exchanger 23 from being corroded (galvanic corrosion).

<Structure for suppressing positional deviation>

As shown in FIGS. 8 to 10 , in order to suppress the positional deviation of the first header header 51 , the outdoor unit 2 of the present embodiment is provided with a positional deviation suppression structure 100 . This position deviation suppressing structure 100 includes a gas-liquid separator leg 26 a, a stopper 101 , and the above-mentioned first rubber member 91 .

The gas-liquid separator foot 26 a is a supporting member for supporting the stopper 101 , and the gas-liquid separator foot 26 a is arranged near the first collective header 51 . Specifically, the gas-liquid separator foot 26a is arranged directly below the gas-liquid separator 26 positioned at the front of the first manifold 51, and the gas-liquid separator foot 26a is fixed on the bottom surface of the base plate 41 by screws, and is supported from below. Gas-liquid separator 26.

The limiting portion 101 is connected to the gas-liquid separator foot 26a. The stopper 101 is a component that restricts the movement of the first manifold 51 from the side, and the stopper 101 has a stopper plate 102 and a buffer piece 103 .

The stopper plate 102 is formed by bending an iron plate, and has an extension part 102a, a stopper surface part 102b, and a guide part 102c.

The extension part 102a is fixed together with the screw for fixing the gas-liquid separator leg 26a to the bottom plate 41, whereby the extension part 102a and the gas-liquid separator leg 26a are connected together. The extension portion 102a extends substantially horizontally from the gas-liquid separator leg 26a toward the rear first header header 51 .

The stopper surface 102b is formed by bending approximately 90 degrees from the rear end of the extension 102a (the end on the first manifold 51 side), and extends vertically upward. The stopper surface portion 102b is formed substantially parallel to a front surface 91d (described later) of the insertion portion 91a into which the lower end of the first manifold 51 is inserted. The movement of the first manifold 51 is restricted by the contact between the front surface 91d of the insertion portion 91a and the buffer piece 103 on the limiting surface 102b.

The guide portion 102c is formed by bending approximately 45 degrees from the upper end of the stopper surface portion 102b toward the front (direction away from the first manifold 51). The guide portion 102c is formed to increase the gap between the stopper 101 and the vertical wall 41a on the rear side of the bottom plate 41, and guides the first manifold 51 to the gap when the first manifold 51 is installed.

The buffer sheet 103 is a rubber sheet, and the buffer sheet 103 is attached to the rear side of the stopper surface portion 102b and the guide portion 102c (the surface on the first manifold 51 side). The buffer sheet 103 is used to prevent the vibration of the gas-liquid separator 26 from being transmitted to surrounding components through the limiting plate 102 .

As shown in FIG. 9 , the first rubber member 91 is formed in a substantially rectangular shape in plan view, and the side surfaces on the long sides of the first rubber member 91 are in contact with the vertical wall 41 a on the rear side of the bottom plate 41 . It is fixed on the bottom surface of the bottom plate 41 with an adhesive. An insertion portion 91 a is formed on a right side portion of the first rubber member 91 .

The insertion portion 91a is located in the gap between the position limiting portion 101 and the vertical wall 41a, and the insertion portion 91a is a portion for inserting the lower end of the first manifold 51 . The insertion portion 91a has a support portion 91b and a circumscribing portion 91c.

The support portion 91b supports the first manifold 51 from below. The upper surface of the support portion 91b is flat, and the lower surface of the first manifold 51 is in contact with the upper surface of the support portion 91b.

The circumscribed portion 91c is a portion in contact with the first header pipe 51 from the outside, and protrudes upward from the upper surface of the support portion 91b in a substantially annular shape.

The front surface 91d of the insertion portion 91a is formed along the vertical direction. The front surface 91d of the insertion portion 91a is substantially parallel to the buffer piece 103 on the stopper surface portion 102b with a slight gap therebetween.

<Suppression of position deviation of the first collective manifold>

In the outdoor unit 2, there is a possibility that the first collective header 51 on the first rubber member 91 deviates greatly due to the fact that the adhesive force of the adhesive decreases and the first rubber member 91 deviates laterally. ; The first rubber member 91 is softened and deformed by condensation heat.

The positional deviation of the first header header 51 is probably caused by the inclination of the outdoor heat exchanger 23 . As shown in this embodiment, when the outdoor heat exchanger 23 is substantially L-shaped in a plan view, it is more likely that the posture of the outdoor heat exchanger 23 is directed toward the rear (with respect to the long sides of the flat tubes 53). The direction perpendicular to the direction of extension of 53a) is inclined, and the position of the lower end of the first collective header 51 deviates toward the front.

However, in the outdoor unit 2 of the present embodiment, the stopper 101 is provided in the vicinity of the first header header 51 . The lower end of the first manifold 51 is inserted into the insertion portion 91a, and the front surface 91d of the insertion portion 91a is substantially parallel to the stopper portion 101 (buffer piece 103) with a slight gap therebetween. Therefore, when the first manifold 51 moves forward with the insertion portion 91a, the front surface 91d of the insertion portion 91a contacts the stopper 101 (buffer piece 103), and the first manifold 51 cannot move further forward. , as a result, the positional deviation of the first header header 51 toward the front is suppressed.

－Effects of Embodiments－

In this embodiment, a limiting portion 101 is provided near the first collecting pipe 51 , and the movement of the first collecting pipe 51 is restricted by the limiting portion 101 . In this way, the positional deviation of the first header header 51 can be suppressed, and the posture of the outdoor heat exchanger 23 can be stably maintained. As a result, it is possible to prevent the outdoor heat exchanger 23 from being tilted so that the connecting pipes 75 and 76 are skewed, and the vibration of the compressor 21 resonates due to the skewing of the connecting pipes 75 and 76 to cause abnormal noise. occur.

In addition, in the present embodiment, the first header pipe 51 is inserted into the insertion portion 91 a of the insulating first rubber member 91 . Then, in a state where the front surface 91d of the insertion portion 91a is in contact with the stopper 101 and the outer connection portion 91c of the insertion portion 91a is sandwiched between the first manifold 51 and the stopper 101, the second Movement of a total manifold 51 is restricted. In this way, the first manifold 51 and the stopper 101 can be insulated by the outer contact portion 91c, and corrosion (galvanic corrosion) of the first manifold 51 made of aluminum can be prevented.

In addition, in this embodiment, the contact portion (front surface 91d) on the side of the insertion portion 91a and the contact portion (bumper piece 103) on the side of the stopper 101 are made to face approximately in parallel, and the insertion portion 91a and the stopper The bit portions 101 are in surface contact. This stabilizes the restricted state restricted by the stopper 101 via the insertion portion 91a, more reliably suppresses the positional deviation of the first manifold 51, and improves reliability in preventing occurrence of abnormal noise.

In addition, in this embodiment, the first rubber member 91 having insulating properties is formed integrally with the support portion 91b supporting the first manifold 51 from below and the outer contact portion 91c contacting the first manifold 51 from the outside. . In this way, it is possible to insulate between the first collecting pipe 51 and the bottom plate 41, and to insulate between the first collecting pipe 51 and the limiting portion 101, and to further prevent the corrosion of the first collecting pipe 51 (galvanic corrosion). ). In addition, it is possible to reduce the number of parts to achieve cost reduction, and to achieve downsizing of the parts.

In addition, in this embodiment, in the direction where the position of the first header header 51 tends to be displaced due to the inclination of the posture of the outdoor heat exchanger 23 (in this embodiment, it refers to the position of the first header header 51). Front), the first collective header 51 is restricted. In this way, it is possible to reliably suppress the positional deviation of the first header header 51 which frequently occurs, and it is possible to improve the reliability of preventing the occurrence of abnormal sound.

[Other Embodiments]

The above-described embodiment may also be configured as follows.

In the above-described embodiment, the movement of the first manifold 51 is regulated in a state where the circumscribed portion 91 c is sandwiched between the first manifold 51 and the stopper 101 . However, the restricting state of the first collecting pipe 51 by the limiting part 101 is not limited thereto, for example, it may also be in the state where the first collecting pipe 51 is directly in contact with the limiting part 101. Movement of a total manifold 51 is restricted. In this case, since there is no object interposed between the first collective manifold 51 and the stopper 101 , the positional accuracy of the collective manifolds 51 , 52 restricted by the stopper 101 can be improved.

In addition, in the above embodiment, the buffer sheet 103 is pasted on the limiting plate 102 of the limiting portion 101 . However, the structure of the limiting portion 101 is not limited thereto. For example, as shown in FIG. 11 , the limiting portion 101 may be formed of only the limiting plate 102 without attaching the buffer sheet 103 .

In addition, in the above-described embodiment, a gap is provided between the stopper portion 101 and the insertion portion 91a. The gap is for increasing the distance between the limiting portion 101 and the vertical wall 41a of the bottom plate 41 , so that the first collective pipe 51 can be easily inserted between the limiting portion 101 and the vertical wall 41a of the bottom plate 41 . However, as shown in Fig. 12(a) and Fig. 12(b), it can also be formed into the following state, that is, there is no gap between the stopper 101 and the insertion part 91a, and the position of the first manifold 51 Deviations don't happen at all.

In addition, in the above-described embodiment, the first rubber member 91 is integrally formed with the support portion 91b supporting the first header pipe 51 from below and the outer contact portion 91c contacting the first header pipe 51 from the outside. However, as shown in Fig. 13(a) and Fig. 13(b), it is also possible to separately form the support portion 91b and the circumscribed portion 91c, and sandwich the circumscribed portion 91c between the first manifold 51 and the stopper portion 101. In the state, the movement of the first collective header 51 is restricted.

Furthermore, in the above embodiment, the contact surface (front surface 91d ) on the insertion portion 91a side and the contact surface (cushion piece 103 ) on the stopper portion 101 side are each formed in a planar shape (linear in plan view). However, the shape of each contact surface is not limited thereto. For example, as shown in FIG. 14 , it may be formed in an arc shape in plan view along the outer peripheral surface of the first manifold 51 . Also in this case, the insertion portion 91a can be brought into surface contact with the stopper portion 101 .

In addition, in the above embodiments, the limiting portion 101 is connected to the gas-liquid separator foot 26a. However, the member connected to the stopper 101 and supporting the stopper 101 may be a member other than the gas-liquid separator leg 26a.

In addition, in the above-described embodiment, the position deviation suppressing structure 100 is provided in the first header header 51 . However, similarly, a positional deviation suppressing structure for suppressing positional deviation may be provided in the second manifold 52 .

－Industrial Applicability－

As described above, the present invention relates to an outdoor unit of an air conditioner, and is particularly useful for an outdoor unit equipped with an outdoor heat exchanger having a vertically disposed header.

-Symbol Description-

10 air conditioner

11 outdoor unit

23 Outdoor heat exchanger (heat exchanger)

40 Chassis (body)

41 Bottom plate

51 The first total manifold (total manifold)

52 Second total manifold (total manifold)

53 flat tube

55 fins

91b Supporting part

91c external part

101 limit part

Claims (6)

1. An outdoor unit of an air conditioner, which is equipped with a body (40) and a heat exchanger (23), and the heat exchanger (23) has two general manifolds (51) vertically arranged in the body (40). , 52), a plurality of flat tubes (53) and a plurality of fins (55) joined on the flat tubes (53), the plurality of flat tubes (53) in the two total manifolds (51, 52) Arranged along the up and down direction, one end of the plurality of flat tubes (53) is inserted into a collective manifold (51, 52), and the other end of the plurality of flat tubes (53) is inserted into another collective manifold (51, 52). 52), characterized in that: The outdoor unit of the air conditioner has: A support portion (91b) provided on the bottom plate (41) of the body (40) to support the above-mentioned collective headers (51, 52) from below; and A stopper (101) extending from a part near the manifold (51, 52) toward the manifold (51, 52) and restricting movement of the manifold (51, 52). 2. The outdoor unit of the air conditioner according to claim 1, characterized in that: The above-mentioned collective collecting pipes (51, 52) are provided with an insulating external connection portion (91c) connected to the collective collecting pipes (51, 52) from the outside, The stopper (101) restricts movement of the collective manifold (51, 52) via the outer contact portion (91c). 3. The outdoor unit of the air conditioner according to claim 2, characterized in that: The stopper (101) restricts movement of the collective manifold (51, 52) in a state of surface contact with the outer contact portion (91c). 4. The outdoor unit of the air conditioner according to claim 2 or 3, characterized in that: The support portion (91b) has insulation properties, and supports the assembly from below in a state where the upper surface of the support portion (91b) is in contact with the lower surface of the manifold manifold (51, 52). Manifolds (51, 52), The outer contact portion (91c) is formed to be connected to the support portion (91b), protrudes upward from the upper surface of the support portion (91b), and contacts the manifold (51, 52) from the outside. 5. The outdoor unit of the air conditioner according to claim 1, characterized in that: The limiting part (101) restricts the movement of the collective collecting pipes (51, 52) in a manner that the collective collecting pipes (51, 52) are directly connected to the limiting part (101). 6. The outdoor unit of an air conditioner according to any one of claims 1 to 5, characterized in that: The stopper (101) restricts movement of the collective manifold (51, 52) from a direction substantially horizontal and substantially perpendicular to the direction in which the flat tube (53) extends.