JP5948867B2 - Outdoor unit - Google Patents

Description

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

  In recent years, there has been a demand for weight reduction of outdoor units, and it has been proposed to form a heat exchanger from aluminum or an aluminum alloy as a countermeasure. However, in general, structural parts such as side plates constituting the casing of the outdoor unit and partition plates arranged in the casing are made of a metal (for example, a steel plate) different from aluminum, and therefore heat exchange made of aluminum or an aluminum alloy. There is a concern that different metal contact corrosion (electric corrosion) may occur in the vessel.

  Patent Document 1 discloses an outdoor unit in which a heat exchanger made of aluminum or an aluminum alloy is disposed on a bottom plate. In this outdoor unit, in order to prevent electrolytic corrosion of the heat exchanger, the heat exchanger is disclosed. A spacer is disposed between the first and second partition plates. This spacer is made of a non-metal such as a metal or a synthetic resin which is electrically lower than aluminum.

JP 2005-114273 A

  However, the outdoor unit of Patent Document 1 cannot maintain the spacer in a desired position due to the displacement of the spacer, the dropping of the spacer, or the like due to the vibration during product transportation or the vibration of the compressor during product use. May not be suppressed.

  In addition, a heat exchanger such as a microchannel heat exchanger is different from a conventional structure in which heat transfer tubes are connected to each other by a U-shaped tube at the end of the heat exchanger. Although a structure including a plurality of heat transfer tubes connected to the collecting pipe is employed, Patent Document 1 does not propose a measure for suppressing electrolytic corrosion between the header collecting pipe and the structural component.

  Therefore, the present invention has been made in view of such points, and includes a header collecting pipe and a plurality of heat transfer tubes connected to the header collecting pipe, and includes a heat exchanger made of aluminum or an aluminum alloy. An object of the present invention is to suppress the occurrence of electrolytic corrosion between the header collecting pipe and the structural component in the outdoor unit.

(1) The outdoor unit of the present invention includes a bottom plate, a heat exchanger (10), structural parts (51, 70), and a contact prevention member (40). The heat exchanger (10) is made of aluminum or aluminum alloy, has a header collecting pipe (11) and a plurality of heat transfer tubes (12) connected to the header collecting pipe (11), and is disposed on the bottom plate. Is done. The structural parts (51, 70) are made of a metal different from the header collecting pipe (11), and are fixed to the bottom plate in an upright position from the bottom plate. The contact preventing member (40) is made of an insulating material, and prevents contact between the header collecting pipe (11) and the structural parts (51, 70). The contact preventing member (40) includes a covering portion (44) for covering at least a part of an outer surface of the header collecting pipe (11), and the covering portion (44) is formed on the header collecting pipe (11) and the structure. A positioning part (45) for positioning the covering part (44) so as to be interposed between the parts (51, 70). The header collecting pipe (11) has a long shape in a direction rising from the bottom plate, and the contact prevention member (40) has a shape extending along the longitudinal direction of the header collecting pipe (11), The plurality of heat transfer tubes (12) are arranged along the longitudinal direction of the header collecting tube (11) in a state where a gap (G) is formed between adjacent heat transfer tubes (12). 44) has comb teeth (46) to be inserted into the gap (G). The comb teeth (46) have a shape whose tip is narrower than the base end.

In this configuration, the contact prevention member (40) has a covering part (44) for covering at least a part of the outer surface of the header collecting pipe (11), and the covering part (44) is a header collecting pipe. Since the positioning part (45) is positioned so as to be interposed between (11) and the structural parts (51, 70), even if vibration during product transportation, vibration of the compressor during product use, etc. occur Positional displacement and dropping of the contact prevention member (45) are suppressed, and the cover portion (44) of the contact prevention member (45) is interposed between the header collecting pipe (11) and the structural parts (51, 70). Maintained. Thereby, contact between the header collecting pipe (11) and the structural parts (51, 70) is prevented, so that the occurrence of electrolytic corrosion in the header collecting pipe (11) can be suppressed. Further, since the comb teeth (46) are inserted between the adjacent heat transfer tubes, the contact preventing member is restricted from moving in the vertical direction with respect to the header collecting tube (11). Therefore, since the contact preventing member is less likely to be displaced with respect to the header collecting pipe (11), the effect of preventing the header collecting pipe (11) from contacting the structural parts (51, 70) can be further enhanced. Moreover, in this structure, since the front-end | tip of a comb tooth (46) is thinner than a base end, it becomes easy to insert a comb-tooth (46) in the clearance gap (G) between adjacent heat exchanger tubes, and work in the manufacturing process of an outdoor unit Improves.

(2) In the outdoor unit, the contact prevention member (40) extends between the header collecting pipe (11) and the structural parts (51, 70) over the entire area in the longitudinal direction of the header collecting pipe (11). Preferably it is provided.

  In this configuration, since the contact preventing member is interposed between the header collecting pipe (11) and the structural parts (51, 70) over the entire length of the header collecting pipe (11), the header collecting pipe (11) and the structural parts are arranged. The effect of preventing contact with (51, 70) is further enhanced.

(3) In the outdoor unit, each of the plurality of heat transfer tubes (12) has a flat shape, and a thickness direction of the heat transfer tube (12) is directed to a longitudinal direction of the header collecting tube (11), The comb teeth (46) preferably extend along the width direction of the heat transfer tube (12).

  In this configuration, since the comb teeth (46) extend along the width direction of the flat heat transfer tube, the effect of restricting the movement of the contact prevention member with respect to the header collecting tube (11) is further enhanced.

(4) An outdoor unit according to another aspect of the present invention includes a bottom plate, a heat exchanger (10), a structural component (51, 70), and a contact prevention member (40). The heat exchanger (10) is made of aluminum or aluminum alloy, has a header collecting pipe (11) and a plurality of heat transfer tubes (12) connected to the header collecting pipe (11), and is disposed on the bottom plate. Is done. The structural parts (51, 70) are made of a metal different from the header collecting pipe (11), and are fixed to the bottom plate in an upright position from the bottom plate. The contact preventing member (40) is made of an insulating material, and prevents contact between the header collecting pipe (11) and the structural parts (51, 70). The contact preventing member (40) includes a covering portion (44) for covering at least a part of an outer surface of the header collecting pipe (11), and the covering portion (44) is formed on the header collecting pipe (11) and the structure. A positioning part (45) for positioning the covering part (44) so as to be interposed between the parts (51, 70). The outdoor unit includes an attachment member (48) disposed on the opposite side of the structural component (51, 70) with respect to the positioning portion (45) of the contact prevention member (40), and the positioning portion (45). The structural parts (51, 70) and the mounting member (48) are fixed in a state where the structural parts (51, 70) are inserted into the insertion holes provided in the structural parts (51, 70), and the contact prevention member (40). And a fixing member (49) for fixing.

In this configuration, the contact prevention member (40) has a covering part (44) for covering at least a part of the outer surface of the header collecting pipe (11), and the covering part (44) is a header collecting pipe. Since the positioning part (45) is positioned so as to be interposed between (11) and the structural parts (51, 70), even if vibration during product transportation, vibration of the compressor during product use, etc. occur Positional displacement and dropping of the contact prevention member (45) are suppressed, and the cover portion (44) of the contact prevention member (45) is interposed between the header collecting pipe (11) and the structural parts (51, 70). Maintained. Thereby, contact between the header collecting pipe (11) and the structural parts (51, 70) is prevented, so that the occurrence of electrolytic corrosion in the header collecting pipe (11) can be suppressed. Further, the contact preventing member can be fixed to the structural parts (51, 70) by the mounting member (48) and the fixing member (49). Therefore, for example, even if the header collecting pipe (11) rolls to the structural parts (51, 70) side due to vibrations generated during operation of the compressor, the blower, etc., the structural parts (51 , 70) is prevented from being displaced with respect to the structural parts (51, 70), so that the contact preventing member is interposed between the header collecting pipe (11) and the structural parts (51, 70). The state in which the covering portion (44) is interposed is stably maintained.

(5) In the outdoor unit, the structural parts (51, 70) are adjacent to the heat exchanger (10) in the thickness direction, and are arranged along the heat exchanger (10). And a partition plate (70) for partitioning the blower chamber in which the blower is disposed and the machine chamber in which the compressor is disposed, the contact preventing member (40) includes the header collecting pipe (11) and the A first contact preventing member (41) interposed between the side plate (51) and preventing contact between the header collecting pipe (11) and the side plate (51); and the header collecting pipe (11); It includes a second contact prevention member (42) interposed between the partition plate (70) and preventing contact between the header collecting pipe (11) and the partition plate (70). preferable.

  In this configuration, the header collecting pipe (11) can be prevented from contacting the side plate (51) and the partition plate (70) by the first contact preventing member (41) and the second contact preventing member (42).

(6) In this case, the following specific configuration can be exemplified. That is, the covering portion (44) is provided on the first contact prevention member (41), extends along the longitudinal direction of the header collecting pipe (11), and the side plate (51) in the header collecting pipe (11). ) Provided at the first covering portion (44) covering at least a part of the outer surface facing the side, and the second contact prevention member (42), extending along the longitudinal direction of the header collecting pipe (11), A second covering portion (44) that covers at least a part of the outer surface of the header collecting pipe (11) facing the partition plate (70), and the positioning portion (45) includes the first contact prevention member. The first covering portion (44) is provided in (41) and positions the first covering portion (44) so that the first covering portion (44) is interposed between the header collecting pipe (11) and the side plate (51). A positioning portion (45) and the second contact The second covering portion (44) is positioned so that the second covering portion (44) is provided between the header collecting pipe (11) and the partition plate (70). A first positioning portion (45) that is disposed on a side opposite to the side plate (51) with respect to the first contact prevention member (41). 481) and a second attachment portion (482) that is disposed on the opposite side of the partition plate (70) with respect to the second contact prevention member (42) and is formed integrally with the first attachment portion (481). And the fixing member (49) fixes the side plate (51) and the first attachment portion (481) in a state of being inserted into an insertion hole provided in the first positioning portion (45). And positioning the first contact prevention member (41) with respect to the side plate (51). The partition plate (70) and the second attachment portion (482) are fixed in a state of being inserted through an insertion hole provided in the first fixing member (49) and the second positioning portion (45), and A second fixing member (49) for positioning the two-contact preventing member (42) with respect to the partition plate (70).

(7) An outdoor unit according to still another aspect of the present invention includes a bottom plate, a heat exchanger (10), structural parts (51, 70), and a contact prevention member (40). The heat exchanger (10) is made of aluminum or aluminum alloy, has a header collecting pipe (11) and a plurality of heat transfer tubes (12) connected to the header collecting pipe (11), and is disposed on the bottom plate. Is done. The structural parts (51, 70) are made of a metal different from the header collecting pipe (11), and are fixed to the bottom plate in an upright position from the bottom plate. The contact preventing member (40) is made of an insulating material, and prevents contact between the header collecting pipe (11) and the structural parts (51, 70). The contact preventing member (40) includes a covering portion (44) for covering at least a part of an outer surface of the header collecting pipe (11), and the covering portion (44) is formed on the header collecting pipe (11) and the structure. A positioning part (45) for positioning the covering part (44) so as to be interposed between the parts (51, 70). In the outdoor unit, the structural parts (51, 70) have an intake port for taking in air from the outside to the heat exchanger (10) side, and the contact prevention member (40) is connected to the intake port. It has a shape that blocks the taken-in airflow from reaching the header collecting pipe (11).
In this configuration, the contact prevention member (40) has a covering part (44) for covering at least a part of the outer surface of the header collecting pipe (11), and the covering part (44) is a header collecting pipe. Since the positioning part (45) is positioned so as to be interposed between (11) and the structural parts (51, 70), even if vibration during product transportation, vibration of the compressor during product use, etc. occur Positional displacement and dropping of the contact prevention member (45) are suppressed, and the cover portion (44) of the contact prevention member (45) is interposed between the header collecting pipe (11) and the structural parts (51, 70). Maintained. Thereby, contact between the header collecting pipe (11) and the structural parts (51, 70) is prevented, so that the occurrence of electrolytic corrosion in the header collecting pipe (11) can be suppressed. In addition, the airflow directed from the outside of the housing to the header collecting pipe (11) through the intake port is blocked by the contact preventing member, and the occurrence of corrosion due to salt damage to the header collecting pipe (11) can be suppressed.
(8) In the outdoor unit, the bottom plate (50) is made of a metal different from the header collecting pipe (11), and the contact prevention member (40) includes the upper surface of the bottom plate and the header collecting pipe (11). It is preferable to further include a bottom surface holding portion (47) that is interposed between the bottom surface and the bottom surface to hold the bottom surface at a position higher than the top surface.
In this configuration, even if the bottom plate (50) is made of a metal different from the header collecting pipe (11), the bottom surface of the header collecting pipe (11) is higher than the top surface of the bottom plate by the bottom surface holding portion (47). Since it is held at the position, the contact between the header collecting pipe (11) and the bottom plate is suppressed. Further, even if water or frost accumulates on the upper surface of the bottom plate of the outdoor unit, the bottom surface of the header collecting pipe (11) is held at a position higher than the upper surface of the bottom plate by the bottom surface holding portion (47). Therefore, the bottom surface of the header collecting pipe (11) is less likely to come into contact with water or frost. Thereby, corrosion of the bottom face of the header collecting pipe (11) is suppressed.

(9) In the outdoor unit, the contact prevention member (40) preferably has a reinforcing rib (71). In this case, the rigidity of the contact prevention member (40) can be increased.

  According to the present invention, in an outdoor unit having a header collecting pipe and a plurality of heat transfer pipes connected to the header collecting pipe and including a heat exchanger made of aluminum or an aluminum alloy, the header collecting pipe and the structural component It is possible to suppress the occurrence of electrolytic corrosion between the two.

In the outdoor unit which concerns on one Embodiment of this invention, it is a schematic top view for demonstrating the positional relationship of a heat exchanger and a structural component. It is the perspective view which showed the internal structure of the said outdoor unit, and looked at the said outdoor unit from the right front. It is an expansion perspective view which shows the header collection tube and heat exchanger tube of the said heat exchanger, and a 1st contact prevention member and a 2nd contact prevention member. It is the rear view which expanded a part of said heat exchanger. (A) is a front view which shows a 1st contact prevention member, (B) is a right view which shows a 1st contact prevention member, (C) is a rear view which shows a 1st contact prevention member. And (D) is a left side view showing the first contact prevention member. (A) is a front view which shows a 2nd contact prevention member, (B) is a right view which shows a 2nd contact prevention member, (C) is a rear view which shows a 2nd contact prevention member. (D) is a left side view showing the second contact preventing member. (A), (B) is a top view for demonstrating the positional relationship of a header collecting pipe, an attachment member, a 1st contact prevention member, and a 2nd contact prevention member, (C), (D) Is a bottom view thereof. It is the schematic which shows the state by which the 1st contact prevention member and the 2nd contact prevention member were fixed to structural components with the attachment member and the fixing member. It is the right view which expanded the lower end part of the 1st contact prevention member and the 2nd contact prevention member. (A) is a top view which shows an attachment member, (B) is a right view which shows an attachment member, (C) is a rear view which shows an attachment member. (A) is a front view which shows a 3rd contact prevention member, (B) is a right view which shows a 3rd contact prevention member, (C) is a rear view which shows a 3rd contact prevention member. And (D) is a left side view showing the third contact preventing member. (A) is a top view for demonstrating the positional relationship of a header collecting pipe and a 3rd contact prevention member, (B) is the bottom view, (C) is the right view. is there. It is the schematic which shows the modification of the said outdoor unit.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic plan view for explaining the positional relationship of components arranged in the casing 20 in the outdoor unit 1 according to the present embodiment, and the illustration of the top plate of the casing 20 is omitted. Yes. FIG. 2 shows the internal structure of the outdoor unit 1, and is a perspective view of the outdoor unit 1 as viewed from the right front. Further, in FIG. 3, illustration of a plurality of fins 13 to be described later is omitted, and the details of the fins 13 in other drawings are omitted, and only the entire outer shape is illustrated. Moreover, in FIG. 3, the state which partially fractured | ruptured the contact prevention member 40 mentioned later is shown for description.

<Overall structure of outdoor unit>
As shown in FIG.1 and FIG.2, the outdoor unit 1 which concerns on this embodiment is the heat exchanger 10, the air blower 60, the compressor 62, the partition plate 70, the contact prevention member 40, the air blower 60, and compression. A control panel (not shown) including a control unit for controlling the machine 62 and the like, and a housing 20 for housing them are provided.

  The housing 20 includes a bottom plate 50, a side plate 51, and a top plate, and has a rectangular parallelepiped shape. The side plate 51 includes a front side plate 52, a rear side plate 53, a right side plate 54, and a left side plate 55. The partition plate 70 partitions the air blowing chamber in which the blower 60 is arranged from the machine room in which the compressor 62 and the control panel are arranged. The side plate 51 and the partition plate 70 are structural parts fixed to the bottom plate 50 in a posture standing from the bottom plate 50. The housing | casing 20 and the partition plate 70 consist of a metal different from the header collecting pipe 11 mentioned later, and are formed, for example with the steel plate.

  The casing 20 has an intake port that takes in air from the outside toward the heat exchanger 10 side, and an exhaust port 21c that exhausts air to the outside. The intake port includes a rear side intake port 21a and a side surface side intake port 21b. The rear side air inlet 21 a is provided in the rear side plate 53. The side air inlet 21 b is provided on the left side plate 55. For example, as each intake port 21a, 21b, what consists of a some slit and a grid | lattice-like opening are mentioned. The exhaust port 21 c is provided in the front side plate 52. When the blower 60 is operated, outside air is taken into the housing 20 through the back side air inlet 21a and the side air inlet 21b, and is heat exchanged with the refrigerant in the heat exchanger 10, and then the air through the air outlet 21c. 20 is discharged outside.

<Heat exchanger>
The heat exchanger 10 includes a pair of header collecting tubes 11, a plurality of heat transfer tubes 12 connected to the header collecting tubes 11, and a plurality of fins 13 provided in each heat transfer tube 12. The heat exchanger 10 is disposed on the bottom plate 50. The pair of header collecting tubes 11, the plurality of heat transfer tubes 12, and the plurality of fins 13 are made of aluminum or an aluminum alloy.

  The pair of header collecting pipes 11 includes a first header collecting pipe 11 a located at one end of the heat exchanger 10 and a second header collecting pipe 11 b located at the other end of the heat exchanger 10. Each header collecting pipe has a long shape in a direction (vertical direction) rising from the bottom plate 50. The pair of header collecting pipes 11a and 11b are placed on the bottom plate 50 via a bottom surface holding portion 47 of the contact preventing member 40 described later. Each header collecting pipe is provided with a refrigerant pipe 14 through which the refrigerant flowing in the refrigerant circuit flows in or out.

  The first header collecting pipe 11a distributes the refrigerant flowing into the first header collecting pipe 11a into the plurality of heat transfer tubes 12 connected to the first header collecting pipe 11a. The distributed refrigerant is sent to the second header collecting pipe 11b side. The second header collecting pipe 11b collects the distributed refrigerant. Note that the flow direction of the refrigerant may be the reverse direction, that is, the direction from the second header collecting pipe 11b toward the first header collecting pipe 11a.

  As shown in FIG. 3, the plurality of heat transfer tubes 12 are arranged along the longitudinal direction of the header collecting tube 11 with a gap G formed between adjacent heat transfer tubes 12. That is, the plurality of heat transfer tubes 12 are arranged in the vertical direction. Each heat transfer tube 12 has one end connected to the first header collecting tube 11a and the other end connected to the second header collecting tube 11b, and the refrigerant flows through the inside thereof.

  Each heat transfer tube 12 has a flat shape in which the thickness, that is, the dimension in the arrangement direction is smaller than the dimension in the width direction. Each heat transfer tube 12 is substantially L-shaped when viewed from above, and has a long side portion located on the back side and extending along the rear side plate 53, a short side portion located on the side surface side, and a left side plate 55. Extending along.

  Each heat transfer tube 12 is provided with a plurality of fins 13 arranged along the longitudinal direction thereof. Each fin 13 has a thin plate shape. Outside air is supplied to the long side portion of each heat transfer tube 12 and the fins 13 provided in this portion through the back side air inlet 21a. Outside air is supplied to the short side portion of each heat transfer tube 12 and the fins 13 provided in this portion through the side air inlet 21b.

  As shown in FIG. 4, each heat transfer tube 12 has an exposed portion 12a whose surface is exposed between the first header collecting tube 11a and the fin 13 provided at a position closest to the first header collecting tube 11a. Have Similarly, each heat transfer tube 12 has an unillustrated exposed portion whose surface is exposed between the second header collecting tube 11b and the fin 13 provided at a position closest to the second header collecting tube 11b. . The surface area of each exposed portion 12a is larger than the surface area of each exposed portion between adjacent fins 13 in each heat transfer tube 12.

<Contact prevention member>
The contact preventing member 40 is for preventing contact between the header collecting pipe 11 and the structural parts 51 and 70. In the present embodiment, the contact preventing member 40 is provided between the intake port and the header collecting pipe 11 and is taken in from the intake port as a fixing member that fixes the header collecting pipe 11 to the bottom plate 50. It further has a function as a shielding member that blocks the airflow from reaching the header collecting pipe 11. The contact preventing member 40 is an insulating member made of an insulating material. Examples of the insulating material include synthetic resins such as polypropylene and polyethylene.

  The contact prevention member 40 includes a first contact prevention member 41, a second contact prevention member 42, and a third contact prevention member 43. The first contact prevention member 41 is interposed between the first header collecting pipe 11a and the side plate 51 (rear side plate 53) to prevent them from contacting each other. The second contact prevention member 42 is interposed between the first header collecting pipe 11a and the partition plate 70 to prevent them from contacting each other. The third contact prevention member 43 is interposed between the second header collecting pipe 11b and the side plate 51 (left side plate 55) to prevent them from contacting each other.

  Each contact preventing member has a shape extending along the longitudinal direction (vertical direction) of the header collecting pipe 11. In the present embodiment, each contact prevention member is provided over the entire area in the longitudinal direction of the header collecting pipe 11 between the header collecting pipe 11 and the structural components 51 and 70, but is not limited thereto. Specifically, each contact prevention member covers the header collecting pipe in a state of covering at least a part of the outer peripheral surface of the header collecting pipe 11 in terms of a function of preventing contact between the header collecting pipe 11 and the structural parts 51 and 70. 11 and the structural parts 51, 70 only need to be interposed, and the length of each contact prevention member in the vertical direction may be shorter than that of the header collecting pipe 11.

  Each contact prevention member has a covering portion 44 (side surface covering portion 44), a positioning portion 45, and a bottom surface holding portion 47. The covering portion 44 plays a role of covering at least a part of the outer peripheral surface of the header collecting pipe 11, and the positioning portion 45 is covered so that the covering portion 44 is interposed between the header collecting pipe 11 and the structural parts 51 and 70. It plays a role of positioning the portion 44. The bottom surface holding part 47 is interposed between the top surface of the bottom plate 50 and the bottom surface of the header collecting pipe 11 and plays a role of holding the bottom surface at a position higher than the top surface of the bottom plate 50. Hereinafter, each contact prevention member is demonstrated concretely.

(First contact prevention member and second contact prevention member)
FIGS. 5A to 5D are views showing the first contact prevention member 41, and FIGS. 6A to 6D are views showing the second contact prevention member 42. FIGS. 7A and 7B are plan views, and FIGS. 7C and 7D are bottom views. Among these, FIGS. 7A and 7C show a state before the header collecting pipe 11a, the mounting member 48, the first contact preventing member 41, and the second contact preventing member 42 are assembled. 7B and 7D show a state in which these are assembled. 8 is a schematic view showing a state in which the first contact prevention member 41 and the second contact prevention member 42 are fixed to the structural components 51 and 70 by the mounting member 48 and the fixing member 49.

  As shown in FIGS. 5, 7, and 8, the first contact prevention member 41 includes a first covering portion 44 that covers an outer peripheral surface of the header collecting pipe 11 a facing the rear side plate 53, and a first covering portion 44. A first positioning portion 45 for positioning the first covering portion 44 so as to be interposed between the header collecting pipe 11a and the rear side plate 53; an area on the rear side plate 53 side on the bottom surface of the header collecting pipe 11a; And a first bottom surface holding portion 471 interposed therebetween. The first covering portion 44, the first positioning portion 45, and the first bottom surface holding portion 471 are integrally formed.

  The first covering portion 44 of the first contact prevention member 41 has a first region 441 extending in the vertical direction substantially parallel to the rear side plate 53 and a direction intersecting the rear side plate 53 (in this embodiment, a direction orthogonal to the rear side plate 53). 2nd area | region 442 extended in this.

  The first region 441 of the first covering portion 44 is provided at a position facing the rear side plate 53 in the thickness direction. The first region 441 is provided in a region that covers the entire first header collecting pipe 11a when viewed from the direction orthogonal to the rear side plate 53. Thereby, the 1st contact prevention member 41 can block | prevent that the airflow taken in from the inlet 21a reaches | attains the 1st header collecting pipe 11a.

  In the first region 441, a plurality of reinforcing ribs are provided on the outer surface as shown in FIG. The plurality of ribs include a vertical rib 71 and a plurality of horizontal ribs 72. The vertical rib 71 extends from the upper end to the lower end of the first region 441. The plurality of horizontal ribs 72 are arranged at intervals in the vertical direction. Each lateral rib 72 extends to the outer surface of the first positioning portion 45 described later.

  The second region 442 of the first covering portion 44 is located at a position adjacent to the first region 441 and extends in a band shape from the upper end portion to the lower end portion of the first covering portion 44, and horizontally from the side edge of the connecting portion. A number of comb teeth 46 extending in the direction. A large number of comb teeth 46 are arranged in the vertical direction at substantially equal intervals. Each comb tooth 46 extends along the circumferential direction of the first header collecting pipe 11 a and the direction away from the rear side plate 53, and is inserted into the gap G between the adjacent heat transfer pipes 12. Each comb tooth 46 extends along the width direction of the heat transfer tube 12. In the present embodiment, the comb teeth 46 are inserted into all the gaps G, but the present invention is not limited to this, and the comb teeth 46 may be inserted into a part of the plurality of gaps G.

  The length of each comb tooth 46 of the first contact prevention member 41 in the vertical direction is the same as the length of the corresponding gap G or slightly smaller than the length of the corresponding gap G. The length of each comb tooth 46 in the vertical direction can be inserted without resistance when inserted into the corresponding gap G, and as much area as possible on the outer peripheral surface of the first header collecting pipe 11a located in the gap G. It is preferably a dimension that can be covered. In the present embodiment, the first header set located in the gap G by inserting the comb teeth 46 of the first contact prevention member 41 and the comb teeth 46 of the second contact prevention member 42 described later into the corresponding gap G. Almost the entire outer peripheral surface of the tube 11a is covered.

  Each comb tooth 46 of the first contact prevention member 41 has a shape that is long in the circumferential direction of the first header collecting pipe 11a, and has a shape whose tip is narrower than the base end. Specifically, in each comb tooth 46, the thickness of the region on the connection portion side is larger than the thickness of the region on the tip side, and these regions are connected via a step. The step of each comb tooth 46 is provided on the inner surface. Thereby, the 1st contact prevention member 41 can be reduced in size, suppressing interference with the outer peripheral surface of the circular header collecting pipe 11a by planar view.

  The first bottom surface holding portion 471 extends in a plate shape in the horizontal direction from the lower end of the first covering portion 44, and has a size capable of covering the region on the rear plate 53 side on the bottom surface of the header collecting pipe 11a from below. doing. The bottom surface holding portion 47 includes the first bottom surface holding portion 471 and a second bottom surface holding portion 472 of the second contact prevention member 42 described later. The bottom surface holding part 47 may be fixed to the bottom plate 50, for example.

  As shown in FIGS. 6, 7, and 8, the second contact prevention member 42 includes a second covering portion 44 that covers the outer peripheral surface of the first header collecting pipe 11 a facing the partition plate 70 side, and a second covering portion. A second positioning portion 45 for positioning the second covering portion 44 so that 44 is interposed between the header collecting tube 11a and the partition plate 70; a region on the partition plate 70 side on the bottom surface of the header collecting tube 11a; And a second bottom surface holding portion 472 interposed between the top surface and the top surface. The 2nd coating | coated part 44, the 2nd positioning part 45, and the 2nd bottom face holding | maintenance part 472 are shape | molded integrally.

  The second covering portion 44 of the second contact prevention member 42 includes a first region 441 extending in the vertical direction substantially parallel to the end piece of the partition plate 70 and a direction intersecting the end piece of the partition plate 70 (in this embodiment, the partition plate). And a second region 442 extending in a direction orthogonal to the end portion of 70.

  The first region 441 of the second covering portion 44 is provided at a position facing the partition plate 70 in the thickness direction. The first region 441 of the second covering portion 44 is provided in a region that covers the entire first header collecting pipe 11a when viewed from a direction orthogonal to the end piece of the partition plate 70. As shown in FIG. 6C, the first region 441 is provided with a plurality of reinforcing ribs on the outer surface. The plurality of ribs include vertical ribs 71 and a plurality of horizontal ribs 72, similar to the first contact prevention member 41 described above.

  The second region 442 of the second covering portion 44 is located at a position adjacent to the first region 441 and extends in a band shape from the upper end portion to the lower end portion of the first covering portion 44, and horizontally from the side edge of the connecting portion. A number of comb teeth 46 extending in the direction. A large number of comb teeth 46 are arranged in the vertical direction at substantially equal intervals. Each comb tooth 46 extends along the circumferential direction of the first header collecting pipe 11 a and the direction away from the partition plate 70, and is inserted into the gap G between the adjacent heat transfer pipes 12.

  Further, the comb teeth 46 of the second contact prevention member 42 extend along the width direction of the heat transfer tube 12. The extending direction of each comb tooth 46 of the second contact preventing member 42 is opposite to the extending direction of each comb tooth 46 of the first contact preventing member 41, and the tip of each comb tooth 46 of the second contact preventing member 42 is The first contact preventing member 41 is provided at a position where it comes into contact with or close to the tip of the comb teeth 46. As a result, as shown in FIG. 3, the periphery of the heat transfer tube 12 is surrounded by the edges of the adjacent comb teeth 46 in the first contact prevention member 41 and the edges of the adjacent comb teeth 46 in the second contact prevention member 42. A surrounding hole is formed. By adopting a configuration in which the exposed portion 12a of the heat transfer tube 12 is surrounded by such a hole, the exposed portion 12a is prevented from corroding due to salt damage.

  In addition, since the structure of each comb tooth 46 of the 2nd contact prevention member 42, such as a dimension and thickness, is the same as that of the comb tooth 46 of the 1st contact prevention member 41 mentioned above, description is abbreviate | omitted.

  The second bottom surface holding part 472 of the second contact prevention member 42 extends in a plate shape in the horizontal direction from the lower end of the second covering part 44, and the region on the partition plate 70 side on the bottom surface of the first header collecting pipe 11a is downward. It has a size that can be covered.

  Next, each positioning part 45 of the 1st contact prevention member 41 and the 2nd contact prevention member 42 is demonstrated.

  The first positioning portion 45 of the first contact prevention member 41 is located on the opposite side of the plurality of heat transfer tubes 12 with respect to the first header collecting tube 11a. The plurality of fins 13, the large number of comb teeth 46, the first header collecting pipe 11 a, and the first positioning portion 45 are arranged along the rear plate 53 in this order in a plan view. The first positioning portion 45 includes a first main body portion 451 provided at a position continuous with the first region 441 of the first covering portion 44, a plurality of first fastening portions 452, and a plurality of first fitting portions 453. including.

  As shown in FIG. 8, the first main body 451 is provided at a position facing the rear plate 53 in the thickness direction. The first main body 451 extends in the vertical direction substantially parallel to the rear plate 53. In the present embodiment, the plurality of first fastening portions 452 are provided at two locations above and below the middle of the first main body portion 451 in the vertical direction. Each first fastening portion 452 has an insertion hole (through hole) 45a through which a fixing member 491 described later is inserted. The plurality of first fitting portions 453 are provided at three locations, that is, an upper end portion, a lower end portion, and an intermediate portion between the first main body portion 451.

  Similar to the first positioning portion 45, the second positioning portion 45 of the second contact preventing member 42 is located on the opposite side of the plurality of heat transfer tubes 12 with respect to the first header collecting tube 11a. The plurality of fins 13, a large number of comb teeth 46, the first header collecting pipe 11 a, and the second positioning portion 45 are arranged along the rear plate 53 in this order in a plan view. The second positioning portion 45 includes a second main body portion 454 provided at a position continuous with the first region 441 of the second covering portion 44, a plurality of second fastening portions 455, and a plurality of second fitting portions 456. including.

  The second main body 454 is provided at a position facing the end piece of the partition plate 70 in the thickness direction. The second main body 454 extends in the vertical direction substantially parallel to the partition plate 70. In the present embodiment, the plurality of second fastening portions 455 are provided at two locations above and below the middle of the second body portion 454 in the vertical direction. Each second fastening portion 455 has a plurality of insertion holes (through holes) 45b through which a fixing member 492 described later is inserted. The plurality of second fitting portions 456 are provided at three locations, that is, an upper end portion, a lower end portion of the second main body portion 454, and an intermediate portion therebetween.

  Each first fitting portion 453 of the first contact prevention member 41 has a fitting protrusion 453a extending to the second fitting portion 456 side of the second contact prevention member 42, and each second fitting portion 456 includes , A corresponding fitting protrusion 453a is inserted and locked to have a fitting hole 456a. The first contact prevention member 41 and the second contact prevention member 42 are connected to each other by fitting each of the plurality of first fitting portions 453 to the corresponding second fitting portion 456.

  When the first fitting portion 453 and the second fitting portion 456 are fitted in a state where the first header collecting pipe 11a is covered with the first covering portion 44 and the second covering portion 44, the first header collecting tube 11a is fitted. The first contact prevention member 41 and the second contact prevention member 42 are fixed to the tube 11a. Thereby, for example, even when the first header collecting pipe 11a slightly rolls, at least the relative positions of the first contact preventing member 41 and the second contact preventing member 42 with respect to the first header collecting pipe 11a change substantially. Therefore, the first header collecting pipe 11a can be prevented from coming into contact with the side plate 51.

  FIG. 9 is an enlarged right side view of the lower ends of the first contact prevention member 41 and the second contact prevention member 42. As shown in FIG. 9, the lower ends of the first contact prevention member 41 and the second contact prevention member 42 have a shape in which a part in the circumferential direction is opened. That is, the first contact prevention member 41 and the second contact prevention member 42 are not provided so as to surround the entire circumference of the first header collecting pipe 11a at their lower end portions, but only in a part of the circumferential direction. Is provided. In the present embodiment, the region opened at the lower end portion of the first contact prevention member 41 is a region A1 between the bottom surface holding portion 471 of the first contact prevention member 41 and a fitting portion 453 described later. The area | region opened in the lower end part of the 2 contact prevention member 42 is area | region A2 between the bottom face holding | maintenance part 472 of the 2nd contact prevention member 42, and the fitting part 456 mentioned later.

  As described above, since the lower end portion has the opening region, water generated by defrosting is temporarily collected in the gap between the contact prevention members 41 and 42 and the lower end portion of the first header collecting pipe 11a, and the influence of the outside air. Even when it is frozen again, the force applied to the contact prevention member due to the volume expansion can be reduced. Thereby, since it can suppress that the contact prevention members 41 and 24 are damaged, even if it is a case where frost formation and a defrost are repeated, the electrolytic corrosion in the header collecting pipe 11a can be suppressed.

(Mounting member and fixing member)
Next, the attachment member 48 and the fixing member 49 will be described. As shown in FIG. 8, the first contact prevention member 41 and the second contact prevention member 42 are fixed to the rear side plate 53 and the partition plate 70 by a plurality of attachment members 48 and a plurality of fixing members 49. Each attachment member 48 includes a first function for fixing the first contact prevention member 41 to the side plate 51, a second function for fixing the second contact prevention member 42 to the partition plate 70, and the first contact prevention member 41. And a third function of coupling the second contact preventing member 42.

  As shown in FIGS. 10A to 10C, each attachment member 48 includes a first attachment portion 481, a second attachment portion 482, a connecting portion 483, and flange portions 484 and 485, which are It is integrally formed. The attachment member 48 has a substantially U shape in plan view. The first function described above is performed by the first mounting portion 481 of the mounting member 48, the second function is performed by the second mounting portion 482 of the mounting member 48, and the third function is the connecting portion of the mounting member 48. 483 is responsible. Hereinafter, the attachment member 48 will be specifically described.

  The first attachment portion 481 is a plate-like portion that is disposed along the inner surface of the first fastening portion 452 of the first positioning portion 45 and extends substantially parallel to the inner surface. The first attachment portion 481 is disposed on the opposite side of the rear plate 53 with respect to the first positioning portion 45 of the first contact prevention member 41. The second attachment portion 482 is a plate-like portion that is disposed along the inner surface of the second fastening portion 455 of the second positioning portion 45 and extends substantially parallel to the inner surface. The first attachment portion 481 has a screw hole 48a at a position corresponding to the insertion hole 45a of the corresponding first fastening portion 452.

  The second attachment portion 482 is a plate-like portion that is disposed along the inner surface of the second fastening portion 455 of the second positioning portion 45 and extends substantially parallel to the inner surface. The second attachment portion 482 is disposed on the opposite side of the partition plate 70 with respect to the second positioning portion 45 of the second contact prevention member 42. The connecting portion 483 connects the first attaching portion 481 and the second attaching portion 482, and is a plate-like portion extending in a direction substantially orthogonal to these. The second attachment portion 482 has a screw hole 48b at a position corresponding to the insertion hole 45b of the corresponding second fastening portion 455.

  The flange portion 484 is an end piece formed by being bent from the front end of the first mounting portion 481 toward the rear plate 53 side, and is disposed at a position facing the end edge of the first fastening portion 452 (see FIG. 8). ). The flange portion 485 is an end piece formed by being bent from the tip of the second mounting portion 482 toward the partition plate 70, and is disposed at a position facing the edge of the second fastening portion 455 (see FIG. 8). ).

  The plurality of fixing members 49 include a first fixing member 491 and a second fixing member 492. In the present embodiment, a screw is used as each fixing member 49. The first fixing member 491 includes an insertion hole (not shown) provided in the rear plate 53, an insertion hole 45a provided in the first fastening portion 452 of the first positioning portion 45, and a screw hole 48a in the first attachment portion 481. They are inserted in order and screwed into the screw holes 48a. Thereby, the first contact prevention member 41 is fixed to the rear side plate 53. Each second fixing member 492 includes an insertion hole (not shown) provided in the rear plate 53, an insertion hole 45b provided in the second fastening portion 455 of the second positioning portion 45, and a screw hole 48b in the second attachment portion 482. Are inserted in this order and screwed into the screw holes 48b. Thereby, the second contact preventing member 41 is fixed to the partition plate 70. Further, the bottom surface holding portion 47 may be fixed to the bottom plate 50, for example.

(Third contact prevention member)
Next, the third contact prevention member 43 will be specifically described with reference to FIGS. 11 (A) to 11 (D) and FIG.

  As shown in FIGS. 11 (A) to 11 (D) and FIG. 12, the third contact prevention member 41 includes a third covering portion 44 that covers the outer peripheral surface of the second header collecting pipe 11b facing the left side plate 55, A third positioning portion 45 for positioning the third covering portion 44 so that the third covering portion 44 is interposed between the second header collecting pipe 11b and the left side plate 55; and a bottom surface and a bottom plate of the second header collecting pipe 11b. And a third bottom surface holding portion 47 interposed between the upper surface of the first and second upper surfaces. The third covering portion 44, the third positioning portion 45, and the third bottom surface holding portion 47 are integrally formed.

  The third covering portion 44 includes a first region 441 extending in the vertical direction substantially parallel to the left side plate 55, and a second region 442 extending in a direction intersecting the left side plate 55 (a direction orthogonal to the left side plate 55 in the present embodiment). including.

  The first region 441 is provided at a position facing the left side plate 55 in the thickness direction. The first region 441 is provided in a region that covers the entire second header collecting pipe 11b when viewed from a direction orthogonal to the left side plate 55. Thereby, the 3rd contact prevention member 43 can block | interrupting the airflow taken in from the inlet port 21b reaching | attaining the 2nd header collecting pipe 11b. In the first region 441, a plurality of reinforcing ribs are provided on the outer surface as shown in FIG. The plurality of ribs include a vertical rib 71 and a plurality of horizontal ribs 72. The vertical rib 71 extends from the upper end to the lower end of the first region 441. The plurality of horizontal ribs 72 are arranged at intervals in the vertical direction.

  The second region 442 is located adjacent to the first region 441 and extends in a strip shape from the upper end portion to the lower end portion of the first covering portion 44, and a number of combs extending in the horizontal direction from the side edges of the connection portion. And teeth 46. A large number of comb teeth 46 are arranged in the vertical direction at substantially equal intervals. Each comb tooth 46 extends in the circumferential direction of the second header collecting pipe 11 b and in the direction away from the left side plate 55, and is inserted into the gap G between the adjacent heat transfer pipes 12. Each comb tooth 46 extends along the width direction of the heat transfer tube 12. In the present embodiment, the comb teeth 46 are inserted into all the gaps G, but the present invention is not limited to this, and the comb teeth 46 may be inserted into a part of the plurality of gaps G.

  In the present embodiment, the third covering portion (side surface covering portion) 44 includes a first region 441 facing the left side plate 55 side and a second region 442 facing the rear side plate 53 side. It is not provided on the right side plate 54 side (see FIG. 1). That is, the second header collecting pipe 11b has an outer peripheral surface facing the left side plate 55 and an outer peripheral surface facing the rear side plate 53 side covered by the third covering portion 44, and an outer peripheral surface facing the front side plate 52 side. The outer peripheral surface facing the right side plate 54 side is not covered with the third covering portion 44.

  Since the outer peripheral surface facing the front plate 52 side and the outer peripheral surface of the second header collecting pipe 11b facing the right plate 54 side are not covered with the third covering portion 44, the third contact prevention member 43 and the second Even when water generated by defrosting accumulates in the gap with the lower end of the header collecting pipe 11b and freezes again due to the influence of outside air, the force applied to the third contact prevention member 43 due to the volume expansion Can be reduced. Thereby, since it can suppress that the 3rd contact prevention member 43 is damaged, even if it is a case where frost formation and defrost are repeated, the electrolytic corrosion in the header collecting pipe 11b can be suppressed.

  The length of each comb tooth 46 in the vertical direction is the same as the length of the corresponding gap G or slightly smaller than the length of the corresponding gap G. The length in the extending direction (horizontal direction) of each comb tooth 46 is a dimension that covers at least a part of the lower surface and the upper surface of the corresponding heat transfer tube 12, and preferably a dimension that covers the entire lower surface and the upper surface of the heat transfer tube 12. There should be. In the present embodiment, the plurality of comb teeth 46 are inserted into the corresponding gaps G, so that almost the entire outer peripheral surface of the second header collecting pipe 11b located in the gaps G is covered. In addition, since the structure of each comb tooth 46, such as thickness and a taper shape, is the same as that of the comb tooth 46 of the 1st contact prevention member 41 mentioned above, description is abbreviate | omitted.

  The third bottom surface holding portion 47 extends in a plate shape in the horizontal direction from the lower end of the covering portion 44, and has a size capable of covering the bottom surface of the second header collecting pipe 11b from below.

  The third positioning portion 45 is located on the opposite side of the plurality of heat transfer tubes 12 with respect to the second header collecting tube 11b. The plurality of fins 13, the large number of comb teeth 46, the second header collecting pipe 11 b, and the third positioning portion 45 are arranged along the left side plate 55 in this order in plan view.

  The third positioning portion 45 includes a plurality of fastening portions 457 extending from the edge of the first region of the third covering portion 44 in a direction along the left side plate 55 and a plurality of header side fastenings attached to the second header collecting pipe 11b. Part 458 (see FIG. 2). Each header side fastening portion 458 is made of an insulating material.

  The some fastening part 457 is arrange | positioned at intervals at the up-down direction. Each fastening portion 457 has an insertion hole 457a through which an unillustrated fixing member such as a bolt is inserted. On the other hand, the plurality of header side fastening portions 458 are attached to the second header collecting pipe 11b so as to be positioned at the same height as the corresponding fastening portions 457. Each header-side fastening portion 458 has a belt-like portion wound around the second header collecting pipe 11b and an extending portion extending from the belt-like portion along the corresponding fastening portion 457. . Each extending portion is provided with an insertion hole through which the fixing member is inserted.

  The fixing member is inserted into the insertion hole 457a of the fastening portion 457 and the insertion hole of the header side fastening portion 458, and a nut is screwed into the end portion. Thereby, the third contact prevention member 43 is fixed to the second header collecting pipe 11b. The nut may be screwed in a state where the bolt inserted into the insertion hole 457a of the fastening portion 457 and the insertion hole of the header side fastening portion 458 is further inserted into the insertion hole provided in the left side plate 55. . In this case, the third contact prevention member 43 is fixed to the second header collecting pipe 11b and the left side plate 55, respectively.

  As described above, in the present embodiment, the contact prevention member 40 has the covering portion 44 for covering at least a part of the outer peripheral surface of the header collecting pipe 11, and the covering portion 44 is formed of the header collecting pipe. 11 and the structural parts 51 and 70 are positioned by the positioning portion 45 so as to be interposed. Therefore, even if the header collecting pipe 11 sways to the structural parts 51 and 70 side due to vibrations generated during operation of the compressor, the blower, etc., for example, the covering portion 44 does not move to the header collecting pipe 11. Is positioned so as to be interposed between the header collecting pipe 11 and the structural parts 51 and 70. Thereby, it is possible to suppress the occurrence of electrolytic corrosion in the header collecting pipe 11.

  Further, in the present embodiment, the header collecting pipe 11 has a shape that is long in the direction rising from the bottom plate 50, and the contact prevention member 40 has a shape that extends along the longitudinal direction of the header collecting pipe 11, The heat transfer tubes 12 are arranged along the longitudinal direction of the header collecting tube 11 with a gap G formed between the adjacent heat transfer tubes 12, and the covering portion 44 extends along the circumferential direction of the header collecting tube 11. Comb teeth 46 inserted into the gap G. Since the comb teeth 46 are thus inserted between adjacent heat transfer tubes, the contact prevention member 40 is restricted from moving in the vertical direction with respect to the header collecting tube 11. Accordingly, the contact prevention member 40 is less likely to be displaced with respect to the header collecting pipe 11, so that the effect of preventing contact with the structural components 51 and 70 is further enhanced.

  In the present embodiment, the contact preventing member 40 is provided over the entire area in the longitudinal direction of the header collecting pipe 11 between the header collecting pipe 11 and the structural components 51 and 70. That is, since the contact preventing member 40 is interposed between the header collecting pipe 11 and the structural parts 51 and 70 over the entire longitudinal direction of the header collecting pipe 11, contact between the header collecting pipe 11 and the structural parts 51 and 70 is prevented. The effect is further increased.

  Further, in the present embodiment, each of the plurality of heat transfer tubes 12 has a flat shape, the thickness direction of the heat transfer tubes 12 faces the longitudinal direction of the header collecting tube 11, and the comb teeth 46 are formed on the heat transfer tubes 12. Since it extends along the width direction, the effect of restricting the vertical movement of the contact preventing member with respect to the header collecting pipe 11 is further enhanced.

  Further, in the present embodiment, the comb teeth 46 are long in the circumferential direction of the header collecting pipe 11 and have a shape whose tip is narrower than the base end. Therefore, the comb teeth 46 are arranged between the adjacent heat transfer tubes 12. It becomes easy to insert in the gap G, and workability is improved in the manufacturing process of the outdoor unit 1.

  In the present embodiment, even when the bottom plate 50 is made of a metal different from the header collecting tube 11, the bottom surface of the header collecting tube 11 is held at a position higher than the top surface of the bottom plate by the bottom surface holding portion 47. Therefore, contact between the header collecting pipe 11 and the bottom plate 50 is prevented. Even if water or frost or the like may accumulate on the upper surface of the bottom plate 50 of the outdoor unit 1, the bottom surface of the header collecting pipe 11 is held at a position higher than the upper surface of the bottom plate 50 by the bottom surface holding portion 47. Therefore, the bottom surface of the header collecting pipe 11 is less likely to come into contact with water or frost. Thereby, the corrosion of the bottom face of the header collecting pipe 11 is suppressed.

  Further, in the present embodiment, the outdoor unit 1 has an attachment member 48 disposed on the opposite side of the structural parts 51 and 70 with respect to the positioning part 45 of the contact prevention member 40 and an insertion hole provided in the positioning part 45. The structural parts 51 and 70 and the attachment member 48 are fixed in the inserted state, and a fixing member 49 for fixing the contact prevention member 40 to the structural parts 51 and 70 is further provided. That is, in this embodiment, the contact preventing member 40 can be fixed to the structural components 51 and 70 by the mounting member 48 and the fixing member 49. Therefore, even if the header collecting pipe 11 sways to the structural parts 51 and 70 due to vibrations generated during operation of the compressor 62 and the blower 60, for example, the structural parts 51 and 70 Since the fixed contact preventing member 40 is not displaced with respect to the structural parts 51 and 70, the covering portion 44 of the contact preventing member 40 is interposed between the header collecting pipe 11 and the structural parts 51 and 70. Is stably maintained.

  Further, in the present embodiment, the contact prevention member 40 is interposed between the header collecting pipe 11 and the side plate 51, and the first contact preventing member 41 for preventing contact between the header collecting pipe 11 and the side plate 51; It includes a second contact prevention member 42 interposed between the header collecting pipe 11 and the partition plate 70 for preventing contact between the header collecting pipe 11 and the partition plate 70. Therefore, the header collecting pipe 11 is prevented from contacting the side plate 51 and the partition plate 70 by the first contact preventing member 41 and the second contact preventing member 42.

  Moreover, in this embodiment, the structural components 51 and 70 have the inlets 21a and 21b which take in air from the outside to the heat exchanger 10 side, and the contact prevention member 40 is taken in from the inlets 21a and 21b. The airflow is blocked from reaching the header collecting pipe 11. In this case, the air flow from the outside of the housing 20 toward the header collecting pipe 11 through the air inlets 21 a and 21 b is blocked by the contact preventing member 40. Thereby, for example, the header collecting pipe 11 is prevented from corroding due to salt damage.

  Furthermore, in this embodiment, the contact prevention member 40 has the comb teeth 46 inserted in the gaps G between the heat transfer tubes 12. Therefore, since the air flow toward the side where the heat transfer pipe 12 is connected in each header collecting pipe 11a, 11b is blocked by the comb teeth 46, corrosion due to salt damage is further suppressed in each header collecting pipe 11a, 11b. Is done.

  Moreover, in this embodiment, since the contact prevention member 40 has the rib 71 for reinforcement, rigidity is improved.

  In the present embodiment, the header collecting pipe 11a and the header collecting pipe 11b located at both ends of the heat exchanger 10 are respectively encased by the contact preventing members 40 (first to third contact preventing members 41, 42, 43). Since it is fixed to the body 20, the position of the plurality of heat transfer tubes 12 connected between the header collecting tubes 11 a and 11 b is also fixed to the housing 20. Therefore, the plurality of heat transfer tubes 12 are prevented from coming into contact with a structural component such as the side plate 51.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these embodiment, A various change, improvement, etc. are possible in the range which does not deviate from the meaning.

  For example, in the said embodiment, although the case where a structural component is a side plate and a partition plate was illustrated, it is not limited to this. The structural component may be, for example, a support column fixed to the bottom plate in a posture standing from the bottom plate.

  Instead of the contact prevention member 40 exemplified in the embodiment, for example, a contact prevention member as shown in FIG. 13 may be used. In this case, as shown in FIG. 13, each contact preventing member 40 includes a covering portion 44 for covering at least a part of the outer peripheral surface of the header collecting pipe 11 (11 a, 11 b), and the covering portion 44 includes the header collecting pipe 11. And a positioning portion 45 for positioning the covering portion 44 so as to be interposed between the structural component 51 and the structural component 51. Each contact prevention member 40 is a rod-like or plate-like member extending along the structural component 51. The base end portion of each contact preventing member is fixed to the housing 20 and functions as a positioning portion 45, and the distal end portion functions as a covering portion 44 that covers at least a part of the outer peripheral surface of the header collecting pipe 11.

  In the said embodiment, although the case where the fin 13 of the heat exchanger 10 was thin plate shape was illustrated, it is not limited to this. The fin 13 may be a corrugated fin disposed between the adjacent heat transfer tubes 12 and 12.

  In the said embodiment, although the coating | coated part 44 and the positioning part 45 are connected so that it may orthogonally cross, the angle | corner which both make is not restricted to 90 degree | times.

  In the above-described embodiment, in each contact prevention member, the covering portion 44 is disposed so as to be parallel to the plane in the direction in which the heat transfer tube 12 extends from the header collecting pipes 11a and 11b. The contact preventing member may be disposed so as to be slightly rotated about the axis of the header collecting pipe 11 as long as it is located between the collecting pipe 11 and the header collecting pipe 11.

  In the embodiment, the header collecting pipe 11 is cylindrical, but is not limited thereto, and may be other shapes such as a prismatic shape.

  In the said embodiment, although the 3rd positioning part 45 illustrated the form containing the some fastening part 457 and the some header side fastening part 458 which consists of an insulating material attached to the 2nd header collecting pipe 11b (FIG. 2), such a header side fastening portion may also be attached to the first header collecting pipe 11a. In this case, the fixing member 491 or the fixing member 492 shown in FIG. 8 is inserted through the insertion hole provided in the header side fastening portion.

  In the above-described embodiment, a screw is used as the fixing member 49, and the structure parts 51 and 70 and the mounting member 48 are fixed in a state where the fixing member 49 is inserted into the insertion hole provided in the positioning portion 45. However, for example, a rod-shaped member may be used instead of the screw. In this case, with the rod-shaped fixing member inserted into the insertion hole provided in the positioning portion 45, one end of the fixing member is bonded to the structural component by using a welding means such as welding, and the other end of the fixing member is attached. The member 48 may be joined.

DESCRIPTION OF SYMBOLS 1 Outdoor unit 10 Heat exchanger 11 Header collection pipe 11a 1st header collection pipe 11b 2nd header collection pipe 12 Heat transfer pipe 20 Housing | casing 40 Contact prevention member 41 1st contact prevention member 42 2nd contact prevention member 43 3rd contact prevention Member 44 Covering portion 45 Positioning portion 46 Comb teeth 47 Bottom surface holding portion 48 Mounting member 481 First mounting portion 482 Second mounting portion 49 Fixing member 50 Bottom plate 51 Side plate 53 Rear side plate 55 Left side plate 70 Partition plate

Claims (9)

A bottom plate (50);
A heat exchanger made of aluminum or aluminum alloy, having a header collecting pipe (11) and a plurality of heat transfer pipes (12) connected to the header collecting pipe (11), and disposed on the bottom plate (50) ( 10) and
Structural parts (51, 70) made of a metal different from the header collecting pipe (11) and fixed to the bottom plate (50) in an upright position from the bottom plate (50);
A contact prevention member (40) for preventing contact between the header collecting pipe (11) and the structural parts (51, 70), comprising an insulating material;
The contact preventing member (40)
A covering portion (44) for covering at least part of the outer surface of the header collecting pipe (11);
A positioning portion (45) for positioning the covering portion (44) so that the covering portion (44) is interposed between the header collecting pipe (11) and the structural component (51, 70). ,
The header collecting pipe (11) has a long shape in a direction rising from the bottom plate (50),
The contact preventing member (40) has a shape extending along the longitudinal direction of the header collecting pipe (11),
The plurality of heat transfer tubes (12) are arranged along the longitudinal direction of the header collecting tube (11) with a gap (G) formed between adjacent heat transfer tubes (12),
The covering portion (44) have a comb teeth (46) to be inserted into the gap (G),
It said comb teeth (46) that has a thin rectangular shape of the tip than the base end, the outdoor unit.   The said contact prevention member (40) is provided over the whole region of the longitudinal direction in the said header collecting pipe (11) between the said header collecting pipe (11) and the said structural components (51,70). The outdoor unit described in. The plurality of heat transfer tubes (12) each have a flat shape, and the thickness direction of the heat transfer tubes (12) is directed to the longitudinal direction of the header collecting tube (11),
The outdoor unit according to claim 1 or 2, wherein the comb teeth (46) extend along a width direction of the heat transfer tube (12). A bottom plate (50);
A heat exchanger made of aluminum or aluminum alloy, having a header collecting pipe (11) and a plurality of heat transfer pipes (12) connected to the header collecting pipe (11), and disposed on the bottom plate (50) ( 10) and
Structural parts (51, 70) made of a metal different from the header collecting pipe (11) and fixed to the bottom plate (50) in an upright position from the bottom plate (50);
A contact prevention member (40) for preventing contact between the header collecting pipe (11) and the structural parts (51, 70), comprising an insulating material;
The contact preventing member (40)
A covering portion (44) for covering at least part of the outer surface of the header collecting pipe (11);
A positioning portion (45) for positioning the covering portion (44) so that the covering portion (44) is interposed between the header collecting pipe (11) and the structural component (51, 70). ,
An attachment member (48) disposed on the opposite side of the structural component (51, 70) with respect to the positioning portion (45) of the contact prevention member (40);
The structural component (51, 70) and the mounting member (48) are fixed in a state of being inserted into an insertion hole provided in the positioning portion (45), and the structural component (51, 70) is fixed to the structural component (51, 70). An outdoor unit further comprising a fixing member (49) for fixing the contact prevention member (40). The structural parts (51, 70)
A side plate (51) adjacent to the thickness direction of the heat exchanger (10) and disposed along the heat exchanger (10);
A partition plate (70) for partitioning the blower chamber in which the blower is disposed and the machine chamber in which the compressor is disposed,
The contact preventing member (40)
A first contact prevention member (41) interposed between the header collecting pipe (11) and the side plate (51) to prevent contact between the header collecting pipe (11) and the side plate (51); ,
A second contact prevention member (42) interposed between the header collecting pipe (11) and the partition plate (70) to prevent contact between the header collecting pipe (11) and the partition plate (70). And the outdoor unit according to claim 4 . The covering portion (44)
At least a part of an outer surface provided on the first contact prevention member (41) and extending along the longitudinal direction of the header collecting pipe (11) and facing the side plate (51) in the header collecting pipe (11) A first covering portion (44) covering
At least one of outer surfaces provided on the second contact prevention member (42), extending along the longitudinal direction of the header collecting pipe (11) and facing the partition plate (70) side of the header collecting pipe (11). A second covering portion (44) covering the portion,
The positioning part (45)
The first covering portion (44) is provided on the first contact prevention member (41), and the first covering portion (44) is interposed between the header collecting pipe (11) and the side plate (51). First positioning portion (45) for positioning)
The second covering portion (42) is provided on the second contact prevention member (42), and the second covering portion (44) is interposed between the header collecting pipe (11) and the partition plate (70). 44) and a second positioning part (45) for positioning,
The mounting member (48)
A first attachment portion (481) disposed on the opposite side of the side plate (51) with respect to the first contact prevention member (41);
A second attachment portion (482) disposed on the opposite side of the partition plate (70) with respect to the second contact prevention member (42) and integrally formed with the first attachment portion (481). ,
The fixing member (49)
The side plate (51) and the first mounting portion (481) are fixed in a state of being inserted through the insertion hole provided in the first positioning portion (45), and the first contact prevention member (41) is A first fixing member (49) for positioning with respect to the side plate (51);
The partition plate (70) and the second attachment portion (482) are fixed in a state of being inserted through the insertion hole provided in the second positioning portion (45), and the second contact prevention member (42) is fixed. The outdoor unit according to claim 5 , further comprising a second fixing member (49) positioned with respect to the partition plate (70). A bottom plate (50);
A heat exchanger made of aluminum or aluminum alloy, having a header collecting pipe (11) and a plurality of heat transfer pipes (12) connected to the header collecting pipe (11), and disposed on the bottom plate (50) ( 10) and
Structural parts (51, 70) made of a metal different from the header collecting pipe (11) and fixed to the bottom plate (50) in an upright position from the bottom plate (50);
A contact prevention member (40) for preventing contact between the header collecting pipe (11) and the structural parts (51, 70), comprising an insulating material;
The contact preventing member (40)
A covering portion (44) for covering at least part of the outer surface of the header collecting pipe (11);
A positioning portion (45) for positioning the covering portion (44) so that the covering portion (44) is interposed between the header collecting pipe (11) and the structural component (51, 70). ,
The structural parts (51, 70) have an intake port for taking in air from the outside to the heat exchanger (10) side,
The said contact prevention member (40) is an outdoor unit which has the shape which interrupts | blocks the airflow taken in from the said air inlet from reaching the said header collecting pipe (11). The bottom plate (50) is made of a metal different from the header collecting pipe (11),
The contact preventing member (40) is interposed between the upper surface of the bottom plate (50) and the bottom surface of the header collecting pipe (11), and holds the bottom surface at a position higher than the upper surface (47). The outdoor unit according to any one of claims 1 to 7 , further comprising: The outdoor unit according to any one of claims 1 to 8 , wherein the contact prevention member (40) has a reinforcing rib (71).

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