JP5447580B2 - Air conditioner outdoor unit - Google Patents

Description

  The present invention relates to an outdoor unit for an air conditioner, and particularly relates to measures against misalignment of a header collecting pipe of a heat exchanger to be mounted.

  Conventionally, a parallel flow type heat exchanger mounted on an outdoor unit of an air conditioner is known. For example, the heat exchanger disclosed in Patent Document 1 is made of aluminum, and is arranged vertically between two header collecting pipes arranged upright, and one header at one end. It has a plurality of flat tubes inserted into the collecting pipe and the other end inserted into the other header collecting pipe, and a plurality of fins joined to the flat tube. In this heat exchanger, heat exchange is performed between the refrigerant flowing in the flat tube and the air passing between the fins.

  In a conventional heat exchanger, an insulating rubber member may be provided on the bottom plate of the housing to support the header collecting pipe from below. By doing so, the heat exchanger is vibration-insulated, and further, the header collecting pipe and the bottom plate are insulated from each other to prevent the header collecting pipe from being corroded (electric corrosion).

JP 2010-249388 A

  However, when this rubber member is fixed with an adhesive, the condensed water dripped from the heat exchanger enters the adhesive and its adhesive strength is reduced, so the rubber member may be displaced. Further, if the refrigerant is condensed by the heat exchanger during the cooling operation, the rubber member may be softened and deformed by the heat of condensation. In such a case, there is a risk that the position of the header collecting pipe on the rubber member may be greatly displaced. There was a problem that occurred.

  The present invention has been made in view of such a point, and an object thereof is to prevent the generation of abnormal noise due to the displacement of the header collecting pipe.

The first invention includes a housing (40), a compressor (21) provided in the housing (40), and two header collecting pipes (51) provided upright in the housing (40). , 52) and the two header collecting pipes (51, 52), one end being inserted into one header collecting pipe (51, 52) and the other end being the other header collecting pipe ( a plurality of flat tubes inserted into 51, 52) and (53), air conditioning and a該扁flat tubes (fins joined to 53) (55) and aluminum heat exchanger having a (23) The target is outdoor units. And it is fixed to the mounting plate (97) fixed to the side plates (42b, 42c) of the casing (40) and the header collecting pipe (51, 52), and the heat exchanger (23) is connected to the casing Bracket (96) to be fixed to (40) and the bottom plate (41) of the casing (40), having insulation, and the upper surface being in contact with the lower surface of the header collecting pipe (51, 52) A rubber member (91) having a support portion (91b) for supporting the header collecting pipe (51, 52) from below in a state, and a component near the header collecting pipe (51, 52). , 52) and is located in the vicinity of the rubber member (91), and comes into contact with the rubber member (91) as the header collecting pipe (51, 52) moves to the side. And a restricting portion (101) for restricting the lateral movement of the header collecting pipe (51, 52).

  In the first aspect of the invention, the restricting portion (101) is provided in the vicinity of the header collecting pipe (51, 52), and movement of the header collecting pipe (51, 52) is restricted by the restricting portion (101). Therefore, for example, even if the posture of the heat exchanger (23) is inclined and the position of the header collecting pipe (51, 52) is largely displaced, the positional deviation of the header collecting pipe (51, 52) is restricted. Is suppressed by.

In a second aspect based on the first aspect, the rubber member (91) has an insulating circumscribing portion (91c) circumscribing the header collecting pipe (51, 52) , and the regulating portion (101) Restricts the movement of the header collecting pipe (51, 52) via the circumscribed part (91c).

  In the second aspect of the invention, the header collecting pipe (51, 52) is moved in a state where the insulating circumscribing part (91c) is interposed between the header collecting pipe (51, 52) and the restricting part (101). Is regulated. Therefore, the header collecting pipe (51, 52) and the restricting portion (101) are insulated by the circumscribed portion (91c).

  In a third aspect based on the second aspect, the restricting portion (101) restricts the movement of the header collecting pipe (51, 52) while being in surface contact with the circumscribed portion (91c). It is characterized by.

  In the third aspect of the invention, since the restricting portion (101) and the circumscribed portion (91c) are in surface contact, the restricting state of the restricting portion (101) via the circumscribed portion (91c) is stabilized.

The fourth invention is the second invention or the third invention, the upper Symbol circumscribed portion (91c) is formed continuously to the support portion (91b), upwardly from the upper surface of the support portion (91b) It protrudes and circumscribes the header collecting pipe (51, 52).

  In the fourth invention, the circumscribed portion (91c) and the support portion (91b) are integrally formed of an insulating material. Therefore, both the header collecting pipe (51, 52) and the bottom plate (41) and the header collecting pipe (51, 52) and the restricting portion (101) are insulated, and the number of parts is reduced.

The fifth aspect based on the first to fifth any one of the invention, the regulating unit (101), said substantially perpendicular direction to the extending direction of and the flat tubes in a substantially horizontal (53) The movement of the header collecting pipe (51, 52) is restricted.

In the fifth aspect of the invention, the heat exchanger (23) is inclined substantially in a direction that is substantially horizontal and substantially perpendicular to the extending direction of the flat tube (53), and the header collecting tube (51, 52) Misalignment is also likely to occur in that direction. However, in the sixth invention, the restricting portion (101) is provided in a direction in which the header collecting pipe (51, 52) is likely to be displaced. Therefore, the position shift of the 1st header collecting pipe (51) with high frequency is suppressed reliably.

  According to the first invention, the restricting portion (101) is provided in the vicinity of the header collecting pipe (51, 52), and the movement of the header collecting pipe (51, 52) is restricted by the restricting portion (101). . Thereby, the position shift of the header collecting pipe (51, 52) can be suppressed, and the posture of the outdoor heat exchanger (23) can be stably maintained. As a result, the posture of the outdoor heat exchanger (23) is inclined and the connection pipes (75, 76) are distorted, and the distortion of the compressor (21) is prevented from resonating and causing noise. be able to.

  According to the second aspect of the invention, the insulating outer periphery (91c) is circumscribed to the header collecting pipe (51, 52), and the outer circumscribed portion is interposed between the header collecting pipe (51, 52) and the restricting portion (101). The movement of the header collecting pipe (51, 52) was regulated with (91c) interposed. As a result, the header collecting pipe (51, 52) and the regulating part (101) can be insulated by the circumscribed part (91c), and the header collecting pipe (51, 52) can be prevented from being corroded (electric corrosion). it can.

  According to the third invention, the movement of the header collecting pipe (51, 52) is regulated in a state where the regulating part (101) and the circumscribed part (91c) are in surface contact. As a result, the restriction state of the restricting portion (101) via the circumscribed portion (91c) can be stabilized, and the displacement of the header collecting pipe (51, 52) can be reliably suppressed, thereby preventing abnormal noise. Can increase the sex.

  According to the fourth invention, the circumscribed portion (91c) and the support portion (91b) for supporting the header collecting pipe (51, 52) from below are integrally formed of an insulating material. Thereby, it is possible to insulate both the header collecting pipe (51, 52) and the bottom plate (41) and between the header collecting pipe (51, 52) and the restricting portion (101). 51, 52) can be further prevented from corrosion (electric corrosion). Further, the number of parts can be reduced to reduce the cost, and the parts can be miniaturized.

According to the fifth aspect of the invention, the restricting portion (101) is provided in a direction in which the posture of the heat exchanger (23) is inclined and the header collecting pipe (51, 52) is likely to be displaced. As a result, it is possible to reliably suppress misalignment of the frequent header collecting pipes (51, 52) and to improve the certainty of noise prevention.

FIG. 1 is a refrigerant circuit diagram illustrating a schematic configuration of the air conditioner according to the first embodiment. FIG. 2 is an external perspective view of the outdoor unit according to the first embodiment. FIG. 3 is a plan view of the outdoor unit according to the first embodiment with a top plate removed. FIG. 4 is a perspective view illustrating an installation state of the outdoor heat exchanger according to the first embodiment. FIG. 5 is a partial cross-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 of FIG. FIG. 7 is a perspective view of the outdoor unit according to Embodiment 1 with a top plate and side plates removed. FIG. 8 is an enlarged view in which the main part (positional displacement suppression structure) of FIG. 7 is enlarged. FIG. 9 is a plan view showing the misalignment suppressing structure of the first embodiment. 10 is a cross-sectional view taken along the line XX of FIG. FIG. 11 is a vertical cross-sectional view showing a misregistration suppression structure according to another embodiment. FIGS. 12A and 12B are longitudinal sectional views showing the positional deviation suppressing structure of the reference form . FIGS. 13A and 13B are longitudinal cross-sectional views showing a misregistration suppressing structure according to another embodiment. FIG. 14 is a plan view showing a misregistration suppression structure according to another embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature and is not intended to limit the present invention, its application, or its use.

Embodiment 1 of the Invention
A first embodiment of the present invention will be described. The outdoor unit (2) of this embodiment constitutes a part of the air conditioner (1) and is installed outdoors, for example. Below, the whole structure of an air conditioner (1) is demonstrated first, and the structure of an outdoor unit (2) is demonstrated next.

<Overall configuration of 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 via a liquid side connecting pipe (13) and a gas side connecting pipe (14). 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 switching valve (22), an outdoor heat exchanger (23), an expansion valve (24), an indoor heat exchanger (25), and an accumulator (26). ing. The compressor (21), the four-way switching valve (22), the outdoor heat exchanger (23), the expansion valve (24) and the accumulator (26) are accommodated in the outdoor unit (11). The outdoor unit (11) is provided with an outdoor fan (15) for supplying outdoor air to the outdoor heat exchanger (23). On the other hand, the indoor heat exchanger (25) is accommodated in the indoor unit (12). The indoor unit (12) is provided with an indoor fan (16) for supplying room air to the indoor heat exchanger (25).

  The compressor (21) has its discharge side connected to the first port of the four-way switching valve (22) and its suction side connected to the second port of the four-way switching valve (22) via the accumulator (26). Has been. In the refrigerant circuit (20), the outdoor heat exchanger (23), the expansion valve (24), and the indoor heat exchanger are sequentially arranged from the third port to the fourth port of the four-way switching valve (22). (25) is arranged.

  The compressor (21) is a scroll type or rotary type hermetic compressor. The four-way selector valve (22) includes a first state (state indicated by a solid line in FIG. 1) in which the first port communicates with the third port and the second port communicates with the fourth port; The second port communicates with the fourth port and the second port communicates with the third port (a state indicated by a broken line in FIG. 1). 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) will be described later. The indoor heat exchanger (25) exchanges heat between indoor air and the refrigerant. The indoor heat exchanger (25) is constituted by a so-called cross fin type fin-and-tube heat exchanger provided with a heat transfer tube which is a circular tube.

  The accumulator (26) gas-liquid-separates the refrigerant and sucks only the gas refrigerant into the compressor (21).

<Operation of air conditioner>
The air conditioner (10) selectively performs a cooling operation and a heating operation.

  In the refrigerant circuit (20) during the cooling operation, the refrigeration cycle is performed with the four-way switching valve (22) set to the first state. In this state, the refrigerant circulates in the order of the outdoor heat exchanger (23), the expansion valve (24), the indoor heat exchanger (25), and the accumulator (26). In the outdoor heat exchanger (23), the refrigerant discharged from the compressor (21) dissipates heat to the outdoor air and condenses. 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 sucked room air to the indoor heat exchanger (25), and blows out the air cooled in 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 switching valve (22) set to the second state. In this state, the refrigerant circulates in the order of the indoor heat exchanger (25), the expansion valve (24), the outdoor heat exchanger (23), and the accumulator (26). In the indoor heat exchanger (25), the refrigerant discharged from the compressor (21) dissipates heat to the indoor air and condenses. The indoor unit (12) supplies the sucked indoor air to the indoor heat exchanger (25), and blows out the air heated in 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.

<Configuration of outdoor unit>
Next, the outdoor unit (11) will be described with reference to FIGS. “Up”, “Down”, “Left”, “Right”, “Front”, and “Rear” used in the description here are directions when the outdoor unit (11) is viewed from the front side unless otherwise specified. I mean.

  The outdoor unit (11) includes a casing (40). The casing (40) is an iron box formed in a vertically long and substantially rectangular parallelepiped shape, and constitutes the casing of the present invention. The casing (40) includes a bottom plate (41), a front plate (42a), a left plate (42b), a rear plate (42c) and a right plate (42d) that are erected on the bottom plate (41). It has a top plate (43) installed at the upper end of the side plates (42a to 42d), and the left and right direction is the longitudinal direction.

  Inside the casing (40), a partition plate (44) is erected from the front plate (42a) toward the rear (in the short direction) in an arc shape in plan view. The internal space of the casing (40) is partitioned by the partition plate (44) into a left blower chamber (S1) and a right machine chamber (S2). The blower room (S1) accommodates an outdoor heat exchanger (23) and an outdoor fan (15). On the other hand, the machine room (S2) includes a compressor (21), a four-way switching valve (22) (not shown in FIG. 3), an expansion valve (24) (not shown in FIG. 3), and an accumulator (26 ) And is housed.

  The rear plate (42c) of the casing (40) has a rear suction port (45a) on the fan chamber (S1) side, and the left plate (42b) has a left suction port (45b). . These two suction ports (45a, 45b) are for sucking air (outdoor air) into the blower chamber (S1).

  In the front plate (42a) of the casing (40), an air outlet (46) is opened on the fan chamber (S1) side. This blower outlet (46) is for blowing off air (outdoor air) from the inside of the blower chamber (S1) to the outside. A fan grill (47) is fitted into the air outlet (46).

<Configuration of outdoor heat exchanger>
Next, the outdoor heat exchanger (23) will be described with reference to FIGS.

  As shown in FIGS. 3 and 4, the outdoor heat exchanger (23) is formed in a substantially L shape in plan view, and faces the two suction ports (45a, 45b) in the blower chamber (S1). Is installed.

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

  Both the first header collecting pipe (51) and the second header collecting pipe (52) are formed in an elongated cylindrical shape with both ends closed. As shown in FIG. 3, in the fan chamber (S1), the first header collecting pipe (51) is erected between the rear side plate (42c) and the partition plate (44), and the second header collecting pipe ( 52) is erected on the corners of the front plate (42a) and the left plate (42b).

  As shown in FIG. 6, the flat tube (53) is an elliptical heat transfer tube having a flat cross section, and a plurality of fluid passages (54) arranged in a line are formed inside. As shown in FIG. 5, the plurality of flat tubes (53) are arranged in the vertical direction at regular intervals with each flat side surface facing each other, and are substantially parallel to each other.

  As shown in FIGS. 3 and 4, the flat tube (53) is formed in a substantially L shape in plan view and extends in the left-right direction (longitudinal direction) in FIG. 3, and in FIG. And a short side portion (53b) extending in the front-rear direction (short direction). The long side portion (53a) of the flat tube (53) faces the rear suction port (45a), and its end portion is inserted into the first header collecting pipe (51), and a plurality of fluid passages (54 ) Communicates with the internal space of the first header collecting pipe (51). On the other hand, the short side portion (53b) of the flat tube (53) faces the left suction port (45b), and its end portion is inserted into the second header collecting pipe (52), and a plurality of fluid passages ( 54) communicates with the internal space of the second header collecting pipe (52).

  As shown in FIGS. 5 and 6, the fin (55) is a vertically long plate-like fin formed by pressing a metal plate. The plurality of fins (55) are arranged in the extension direction of the flat tube (53) at regular intervals, and air (outdoor air) is placed between the adjacent fins (55) through the suction ports (45a, 45b). ) Side to the blower chamber (S1) side. In the fin (55), notches (56) are formed at regular intervals in the vertical direction on the inlet (45a, 45b) side, which is the windward side. And the flat tube (53) is inserted in the leeward part of each notch part (56).

  As shown in FIG. 5, the outdoor heat exchanger (23) is divided into an upper main heat exchange region (61) and a lower auxiliary heat exchange region (62), and each heat exchange region (61, 62 ) Is divided into three heat exchanging parts (61a to 61c, 62a to 62c). Specifically, in the main heat exchange region (61), the first main heat exchange part (61a), the second main heat exchange part (61b), and the third main heat exchange part in order from bottom to top. (61c) is formed. In the auxiliary heat exchange region (62), in order from bottom to top, a first auxiliary heat exchange unit (62a), a second auxiliary heat exchange unit (62b), and a third auxiliary heat exchange unit (62c) Is formed. The number of flat tubes (53) constituting each main heat exchange part (61a to 61c) is larger than the number of flat tubes (53) constituting each auxiliary heat exchange part (62a to 62c).

  The internal space of the first header collecting pipe (51) is partitioned into an upper space (71) and a lower space (72) by a partition plate (51a). The upper space (71) communicates with all the flat tubes (53) constituting the main heat exchange region (61), and the lower space (72) is all the flat tubes constituting the auxiliary heat exchange region (62). Communicates with (53). In addition, a gas side connecting pipe (75) and a liquid side connecting pipe (76) are connected to the first header collecting pipe (51). One end of the gas side connecting pipe (75) is connected to the upper part of the first header collecting pipe (51) and communicates with the upper space (71), and the other end is connected to the third port of the four-way switching valve (22). It is connected. The liquid side connection pipe (76) has one end connected to the lower part of the first header collecting pipe (51) and communicating with the lower space (72), and the other end connected to the expansion valve (24).

  The internal space of the second header collecting pipe (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). Has been. The main communication space (81) is divided into a first partial space (81a), a second partial space (81b), and a third partial space (81c) in order from the bottom to the top by the two partition plates (52a). It is partitioned. Each partial space (81a-81c) is connected with all the flat tubes (53) which comprise each main heat exchange part (61a-61c).

  The auxiliary communication space (82) is divided into a fourth partial space (82a), a fifth partial space (82b), and a sixth partial space (82c) in order from the bottom to the top by the two partition plates (52b). It is partitioned. Each partial space (82a-82c) is connected with all the flat tubes (53) which comprise each auxiliary heat exchange part (62a-62c).

  Two connecting pipes (85, 86) are attached to the second header collecting pipe (52). The first connection pipe (85) has one end connected to the second partial space (81b) and the other end connected to the fifth partial space (82b). The second connection pipe (86) has one end connected to the third partial space (81c) and the other end connected to the fourth partial space (82a). In the second header collecting pipe (52), the first partial space (81a) and the sixth partial space (82c) form one continuous space.

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

  Two attachment members (95) are provided in each header collecting pipe (51, 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). The bracket (96) is fixed to each header collecting pipe (51, 52), the mounting plate (97) is fixed to each side plate (42b, 42c) of the casing (40), and the bracket (98) 96) and the mounting plate (97) are fixed in an insulated state. By doing so, electrical contact between the header collecting pipe (51, 52) and the casing (40) is avoided, and corrosion (electric corrosion) of the header collecting pipe (51, 52) is prevented.

  As shown in FIG. 4, the rubber members (91 to 93) are substantially plate-like rubber materials having insulating properties, and are adhesively fixed on the bottom plate (41) with an adhesive. The first rubber member (91) is provided between the rear plate (42c) and the partition plate (44), and supports the first header collecting pipe (51) from below. The second rubber member (92) is provided at corners of the rear side plate (42c) and the left side plate (42b), and supports the plurality of fins (55) from below. The third rubber member (93) is provided at the corner of the front side plate (42a) and the left side plate (42b), and supports the second header collecting pipe (52) from below. These three rubber members (91 to 93) dampen the outdoor heat exchanger (23), further avoiding electrical contact between the outdoor heat exchanger (23) and the casing (40). The corrosion (electric corrosion) of the heat exchanger (23) is prevented.

<Position shift suppression structure>
As shown in FIGS. 8 to 10, the outdoor unit (2) of the present embodiment is provided with a misalignment suppressing structure (100) in order to suppress misalignment of the first header collecting pipe (51). . The positional deviation suppressing structure (100) includes an accumulator leg (26a), a restricting portion (101), and the first rubber member (91).

  The accumulator leg (26a) is a support component for supporting the restricting portion (101), and is installed in the vicinity of the first header collecting pipe (51). Specifically, the accumulator leg (26a) is installed directly below the accumulator (26) positioned in front of the first header collecting pipe (51), and is fixed to the bottom surface of the bottom plate (41) with a screw. ) Is supported from below.

  The restricting portion (101) is connected to the accumulator leg (26a). The restricting portion (101) restricts the movement of the first header collecting pipe (51) from the side, and includes a restricting plate (102) and a buffer sheet (103).

  The regulation plate (102) is formed by bending an iron plate material, and has an extension (102a), a regulation surface (102b), and a guide (102c).

  The extension (102a) is connected to the accumulator leg (26a) by tightening the accumulator leg (26a) with a screw for fixing the accumulator leg (26a) to the bottom plate (41). The extension (102a) extends substantially horizontally from the accumulator leg (26a) toward the rear first header collecting pipe (51).

  The restriction surface portion (102b) is formed by bending the rear end (the end portion on the first header collecting pipe (51) side) of the extension portion (102a) at approximately 90 degrees, and extends upward in the vertical direction. The restriction surface portion (102b) is formed substantially parallel to the front surface (91d) (described later) of the insertion portion (91a) into which the lower end of the first header collecting pipe (51) is inserted. The movement of the first header collecting pipe (51) is restricted by the front surface (91d) of the insertion part (91a) coming into contact with the buffer sheet (103) on the restriction surface part (102b).

  The guide portion (102c) is formed by bending approximately 45 degrees forward from the upper end of the restriction surface portion (102b) (in a direction away from the first header collecting pipe (51)). The guide portion (102c) is formed so as to increase the gap between the restricting portion (101) and the rear wall (41a) on the rear side of the bottom plate (41), and is attached to the first header collecting pipe (51). Sometimes the first header collecting pipe (51) is guided to the gap.

  The buffer sheet (103) is a rubber sheet material, and is attached to the rear surface (the surface on the first header collecting pipe (51) side) of the regulation surface portion (102b) and the guide portion (102c). The buffer sheet (103) prevents the vibration of the accumulator (26) from propagating to the peripheral parts via the restricting plate (102).

  As shown in FIG. 9, the first rubber member (91) is formed in a substantially rectangular shape in plan view, the side surface on the long side is in contact with the rear wall (41a) on the rear side of the bottom plate (41), and the back surface is It is fixed to the bottom surface of the bottom plate (41) with an adhesive. And the insertion part (91a) is formed in the right side part of the 1st rubber member (91).

  The insertion portion (91a) is a portion that is located in the gap between the restriction portion (101) and the standing wall (41a) and into which the lower end of the first header collecting pipe (51) is inserted. The insertion part (91a) has a support part (91b) and a circumscribed part (91c).

  The support part (91b) is a part that supports the first header collecting pipe (51) from below, and the upper surface is formed flat, and the lower surface of the first header collecting pipe (51) is in contact with the upper surface. ing.

  The circumscribing portion (91c) is a portion circumscribing the first header collecting pipe (51), and protrudes in a substantially annular shape upward from the upper surface of the support portion (91b).

  The insertion portion (91a) has a front surface (91d) formed in the vertical direction. And the front surface (91d) of this insertion part (91a) and the buffer sheet | seat (103) on a control surface part (102b) have faced substantially parallel via the some clearance gap.

<Suppression of displacement of the first header collecting pipe>
In the outdoor unit (2), the adhesive force of the adhesive is reduced, the first rubber member (91) is displaced laterally, or the first rubber member (91) is softened and deformed by heat of condensation. The first header collecting pipe (51) on the first rubber member (91) may be greatly displaced.

  The displacement of the first header collecting pipe (51) is often caused by the inclination of the outdoor heat exchanger (23). When the outdoor heat exchanger (23) is substantially L-shaped in plan view as in the present embodiment, the outdoor heat exchanger (23) is positioned rearward (on the long side (53a) of the flat tube (53). In many cases, the lower end of the first header collecting pipe (51) is displaced forward by tilting in the direction perpendicular to the extending direction.

  However, in the outdoor unit (2) of the present embodiment, the restricting portion (101) is provided in the vicinity of the first header collecting pipe (51). The lower end of the first header collecting pipe (51) is inserted into the insertion portion (91a), and the front surface (91d) of the insertion portion (91a) and the regulating portion (101) (buffer sheet (103)) are slightly It faces almost parallel through a gap. Therefore, when the first header collecting pipe (51) tries to move forward with the insertion portion (91a), the front surface (91d) of the insertion portion (91a) becomes the restriction portion (101) (buffer sheet (103)). In contact with each other, the first header collecting pipe (51) cannot move forward any more, and as a result, the forward displacement of the first header collecting pipe (51) is suppressed.

-Effect of the embodiment-
In this embodiment, a restricting portion (101) is provided in the vicinity of the first header collecting pipe (51), and the movement of the first header collecting pipe (51) is restricted by the restricting portion (101). Thereby, the position shift of a 1st header collecting pipe (51) can be suppressed, and the attitude | position of an outdoor heat exchanger (23) can be maintained stably. As a result, the posture of the outdoor heat exchanger (23) is inclined and the connection pipes (75, 76) are distorted, and the distortion of the compressor (21) is prevented from resonating and causing noise. be able to.

  In the present embodiment, the first header collecting pipe (51) is inserted into the insertion portion (91a) of the insulating first rubber member (91). Then, the front surface (91d) of the insertion portion (91a) is brought into contact with the restriction portion (101), and the outer portion of the insertion portion (91a) between the first header collecting pipe (51) and the restriction portion (101) ( The movement of the first header collecting pipe (51) is regulated with 91c) in between. As a result, the first header collecting pipe (51) and the regulating part (101) can be insulated by the circumscribed part (91c), and corrosion (electric corrosion) of the aluminum first header collecting pipe (51) can be prevented. can do.

  In the present embodiment, the contact portion (front surface (91d)) on the insertion portion (91a) side and the contact portion (buffer sheet (103)) on the regulation portion (101) side are faced substantially parallel to each other, and the insertion portion ( 91a) and the regulating part (101) are brought into surface contact. Thereby, the restriction state by the restriction part (101) via the insertion part (91a) can be stabilized, and the positional deviation of the first header collecting pipe (51) can be more reliably suppressed, thereby preventing abnormal noise. Certainty can be increased.

  In the present embodiment, the support portion (91b) that supports the first header collecting pipe (51) from below and the circumscribed portion (91c) that circumscribes the first header collecting pipe (51) have insulating properties. The first rubber member (91) is integrally formed. Accordingly, it is possible to insulate both the first header collecting pipe (51) and the bottom plate (41) and between the first header collecting pipe (51) and the restricting portion (101). Corrosion (electric corrosion) of the pipe (51) can be further prevented. Further, the number of parts can be reduced to reduce the cost, and the parts can be miniaturized.

  In this embodiment, the direction of the outdoor heat exchanger (23) is inclined and the first header collecting pipe (51) is likely to be displaced (in this embodiment, in front of the first header collecting pipe (51)). In addition, the first header collecting pipe (51) is regulated. Thereby, the position shift of the 1st header collecting pipe (51) with a high frequency can be suppressed reliably, and the certainty of noise prevention can be improved.

<< Other Embodiments >>
About the said embodiment, you may make it the following structures.

In the above embodiment, the movement of the first header collecting pipe (51) is regulated with the circumscribed part (91c) sandwiched between the first header collecting pipe (51) and the regulating part (101). . However, the regulation state of the first header collecting pipe (51) by the regulation unit (101) is not limited to this.

  Moreover, in the said embodiment, the buffer sheet (103) is affixed on the control board (102) of a control part (101). However, the configuration of the restricting portion (101) is not limited to this. For example, as shown in FIG. 11, the restricting portion (101) is configured only by the restricting plate (102) without attaching the buffer sheet (103). Anyway.

Moreover, in the said embodiment, the clearance gap is provided between the control part (101) and the insertion part (91a). This gap is provided in order to increase the distance between the restricting portion (101) and the standing wall (41a) of the bottom plate (41) and facilitate the insertion of the first header collecting pipe (51) therein. . On the other hand, (a) and (b) of FIG. 12 eliminate the gap between the restricting portion (101) and the insertion portion (91a) and form a state in which no displacement of the first header collecting pipe (51) occurs. The reference form is shown.

  Moreover, in the said embodiment, the support part (91b) which supports the 1st header collecting pipe (51) from the bottom, and the circumscribed part (91c) which circumscribes the 1st header collecting pipe (51) are made into the 1st rubber member. (91) is integrally formed. However, as shown in FIGS. 13A and 13B, the support portion (91b) and the circumscribed portion (91c) are formed separately, and the first header collecting pipe (51), the restricting portion (101), The movement of the first header collecting pipe (51) may be restricted with the circumscribed portion (91c) sandwiched between them.

  Moreover, in the said embodiment, the contact surface (front surface (91d)) by the side of an insertion part (91a) and the contact surface (buffer sheet | seat (103)) by the side of a control part (101) are planar shape (planar view linear shape), respectively. ). However, the shape of each contact surface is not limited to this, and for example, as shown in FIG. 14, it may be formed in a circular arc shape in plan view along the outer peripheral surface of the first header collecting pipe (51). . Even in this case, the insertion portion (91a) and the restriction portion (101) can be brought into surface contact.

  In the above embodiment, the restricting portion (101) is connected to the accumulator leg (26a). However, the component that connects and supports the restricting portion (101) may be other than the accumulator leg (26a).

  Moreover, in the said embodiment, the position shift suppression structure (100) is provided in the 1st header collecting pipe (51). However, similarly, the second header collecting pipe (52) may be provided with a misalignment suppressing structure for suppressing misalignment.

  As described above, the present invention relates to an outdoor unit for an air conditioner, and is particularly useful for an outdoor unit equipped with an outdoor heat exchanger having a header collecting pipe installed upright.

10 Air conditioner
11 Outdoor unit
23 Outdoor heat exchanger (heat exchanger)
40 Casing (housing)
41 Bottom plate
51 First header collecting pipe (header collecting pipe)
52 Second header collecting pipe (header collecting pipe)
53 Flat tube
55 fins
91b Support
91c Outer part
101 Regulatory Department

Claims (5)

The housing (40),
A compressor (21) provided in the housing (40);
Between the two header collecting pipes (51, 52) standing in the housing (40) and the two header collecting pipes (51, 52), one end of one header group is arranged vertically. A plurality of flat tubes (53) inserted into the pipe (51, 52) and the other end inserted into the other header collecting pipe (51, 52), and a plurality of fins joined to the flat tube (53) ( 55) and aluminum heat exchanger having a (23) and a outdoor unit of the air conditioner provided with,
The mounting plate (97) fixed to the side plates (42b, 42c) of the casing (40) and the header collecting pipe (51, 52) are fixed, and the heat exchanger (23) is connected to the casing (40). Bracket (96) to be fixed to
The header collecting pipe (51, 52) is provided on the bottom plate (41) of the casing (40), has an insulating property, and the upper surface is in contact with the lower surface of the header collecting pipe (51, 52). A rubber member (91) having a support portion (91b) supported from below;
The header collecting pipe (51, 52) extends from the parts in the vicinity of the header collecting pipe (51, 52) toward the header collecting pipe (51, 52) and is located in the vicinity of the rubber member (91). And a regulating portion (101) for regulating the lateral movement of the header collecting pipe (51, 52) by contacting the rubber member (91) with the lateral movement of the header collecting pipe (51, 52). Air conditioner outdoor unit. In claim 1,
The rubber member (91) has a circumscribed portion of the insulating circumscribed to the header manifold (51, 52) and (91c),
The outdoor unit of an air conditioner characterized in that the restricting part (101) restricts movement of the header collecting pipe (51, 52) via the circumscribed part (91c). In claim 2,
The outdoor unit for an air conditioner characterized in that the regulating part (101) regulates the movement of the header collecting pipe (51, 52) in a state of surface contact with the circumscribed part (91c). In claim 2 or 3 ,
Upper Symbol circumscribed portion (91c) is characterized by circumscribing the support portion is formed continuously in (91b), the header manifold projects from the upper surface to above the support portion (91b) (51,52) Air conditioner outdoor unit. In any one of Claims 1 thru | or 4 ,
The air conditioner characterized in that the restricting portion (101) restricts movement of the header collecting pipe (51, 52) from a direction substantially horizontal and substantially perpendicular to an extending direction of the flat pipe (53). Outdoor unit.

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