JP7241959B2 - Heat exchanger unit and outdoor unit - Google Patents

Description

The present disclosure relates to a water heat exchanger unit and an outdoor unit that produce hot or cold water using a refrigeration cycle.

As a water heat exchanger unit that produces hot water or cold water using a refrigeration cycle, a plate type heat exchanger is covered with a heat insulating material and further surrounded by a pair of holding cases with a three-sided structure that is strong enough not to deform, and these holding cases Integrated heat exchanger units that are fixed together with screws are known (see, for example, Patent Document 1).

In the heat exchanger unit of Patent Literature 1, one of a pair of holding cases consists of a front wall, a top wall and side walls, and the other holding case consists of a rear wall, a bottom wall and side walls. The pair of holding cases are assembled together and fixed with screws to form a structure that surrounds the plate heat exchanger covered with a heat insulating material. A base sheet metal is attached to the assembled holding case.

JP 2008-196776 A

By the way, generally, the thickness of laminated plates in a plate heat exchanger varies depending on the capacity of the air conditioner. That is, the number of stacked plates increases when the capacity of the air conditioner is high, and the number of stacked plates decreases when the capacity of the air conditioner is low. Therefore, in the heat exchanger unit of Patent Document 1, a plurality of sizes of holding cases having different dimensions of the rear surface, upper surface, lower surface and both side surfaces are provided according to the capacity of the air conditioner, that is, the capacity of the plate heat exchanger. It required a base sheet metal to secure the , and multiple sizes of main insulation.

However, in such a conventional heat exchanger unit, it is necessary to separately prepare a holding case covering the plate heat exchanger for each plate heat exchanger having a different thickness depending on the capacity of the air conditioner. I had a problem with scoring. In addition, as the number of parts increases, the number of assembling man-hours also increases.

The present disclosure is intended to solve the above problems, and is a heat exchanger that can reduce the number of parts to be prepared according to the capacity of the plate heat exchanger, reduce the number of assembly man-hours, and improve the ease of assembly. The purpose is to provide a unit and an outdoor unit.

A heat exchanger unit according to the present disclosure includes a plate-type heat exchanger in which a plurality of plates are stacked, a holding case that houses the plate-type heat exchanger, and a pedestal that fixes the holding case to a mounting portion. , wherein the holding case includes a first holding member having a front surface portion covering a front surface of the plate heat exchanger and an upper surface portion covering an upper surface of the plate heat exchanger; a second holding member having a rear surface portion covering the rear surface, a bottom surface portion covering the bottom surface, and a right side portion and a left side portion covering the right side and the left side, wherein the first holding member and the second holding member is fixed, the second holding member and the pedestal are fixed, and the dimension in the depth direction of the accommodating portion of the plate heat exchanger configured by the first holding member and the second holding member is It can be adjusted according to the number of stacked plates constituting the plate heat exchanger.

Further, an outdoor unit according to the present disclosure includes the above heat exchanger unit in a refrigerant circuit.

According to the present disclosure, in the holding case of the heat exchanger unit, the depth dimension of the holding portion of the plate heat exchanger configured by the first holding member and the second holding member constitutes the plate heat exchanger. It can be adjusted according to the number of laminated plates. Therefore, it is possible to reduce the number of different parts for configuring the holding case prepared according to the capacity of the plate heat exchanger. Thus, according to the heat exchanger unit and the outdoor unit according to the present disclosure, it is possible to reduce the number of parts to be prepared according to the capacity of the plate heat exchanger, reduce the number of assembly man-hours, and improve the ease of assembly.

FIG. 3 is a schematic diagram showing a refrigerant circuit of an outdoor unit equipped with a heat exchanger unit according to Embodiment 1; FIG. 2 is a perspective view showing the appearance of the outdoor unit of FIG. 1; FIG. 3 is a top view showing the internal structure of the outdoor unit of FIG. 2; FIG. 4 is a perspective view showing a main part of the outdoor unit of FIG. 3; FIG. 5 is an exploded perspective view showing the heat exchanger unit of FIG. 4; FIG. 6 is an exploded perspective view showing a plate heat exchanger in the heat exchanger unit of FIG. 5; FIG. 6 is a perspective view showing a first holding member in the heat exchanger unit of FIG. 5; FIG. 6 is a perspective view showing a second holding member in the heat exchanger unit of FIG. 5; FIG. 6 is a perspective view showing a base portion in the heat exchanger unit of FIG. 5; FIG. 6 is a perspective view showing a comparison between the minimum and maximum volumes of the plate heat exchanger in the heat exchanger unit of FIG. 5 ; 6 is a perspective view for explaining another aspect of the heat exchanger unit of FIG. 5. FIG.

An embodiment of a heat exchanger unit and an outdoor unit according to the present disclosure will be described below with reference to the drawings, taking as an example a case where the heat exchanger unit and the outdoor unit are applied to an outdoor unit of an air conditioner. It should be noted that the forms of the constituent elements shown in the entire specification are merely examples and are not limited to these descriptions. In other words, the present disclosure can be modified as appropriate within a range not contrary to the gist or idea that can be read from the scope of claims and the entire specification. Also, the technical idea of the present disclosure includes a heat exchanger unit and an outdoor unit with such changes. Further, in each figure, the same reference numerals are the same or equivalent, and this is common throughout the specification. Therefore, in each figure, duplicated explanations regarding the parts denoted by the same reference numerals are omitted as appropriate.

Embodiment 1.
<Outdoor unit 2>
A refrigerant circuit of an outdoor unit 2 equipped with a heat exchanger unit 10 according to Embodiment 1 will be described with reference to FIG. FIG. 1 is a schematic diagram showing a refrigerant circuit of an outdoor unit 2 equipped with a heat exchanger unit 10 according to Embodiment 1. FIG.

The outdoor unit 2 is a device that heats water to make hot water or cools water to make cold water by a refrigeration cycle, and is a type of water heat exchange device of a refrigerating air conditioner. The refrigerant circuit of the outdoor unit 2 is configured as shown in FIG. In FIG. 1, a high-temperature and high-pressure gas refrigerant is supplied from a compressor 21 through a refrigerant pipe 4 to the plate heat exchanger 100 provided in the heat exchanger unit 10 of the first embodiment, and the plate heat exchanger It shows the case of heating the water entering the 100 water circuit. The compressor 21 compresses a refrigerant such as R410A into a high-temperature and high-pressure gas refrigerant, which is supplied to the plate heat exchanger 100 via a flow path switching device 22 such as a four-way valve.

In the plate-type heat exchanger 100, the refrigerant and the water flow in opposite directions, and heat is exchanged between the refrigerant and the water to heat the water. The liquid refrigerant flowing out of the plate heat exchanger 100 is supercooled (subcooled) by the electronic expansion valve 23 b and enters the accumulator 24 . Further, the refrigerant is decompressed by the electronic expansion valve 23a to become a two-phase refrigerant, evaporated by the air-refrigerant heat exchanger 25 to become a low-pressure gas refrigerant, and returned to the compressor 21 via the flow switching device 22 from the intake muffler 21a. The high-temperature water heated by the plate heat exchanger 100 is supplied to a hot water supply tank, fan coil unit, etc., not shown.

When water is cooled by the plate heat exchanger 100, the refrigerant flows in the opposite direction. The refrigerant is compressed by the compressor 21 into a high-temperature, high-pressure gas refrigerant, which is supplied to the air-refrigerant heat exchanger 25 via the channel switching device 22 . The liquid refrigerant flowing out of the air-refrigerant heat exchanger 25 is subcooled by the electronic expansion valve 23 a and enters the accumulator 24 . Further, the pressure is reduced by the electronic expansion valve 23b to become a two-phase refrigerant, and the refrigerant is evaporated by the plate heat exchanger 100 to become a low-pressure gas refrigerant. In the plate heat exchanger 100, the refrigerant and water flow in parallel, heat is exchanged between the refrigerant and the water, and the water is cooled. The low-pressure gas refrigerant that has flowed out of the plate heat exchanger 100 returns to the compressor 21 via the flow path switching device 22 and the intake muffler 21a. The water cooled by the plate heat exchanger 100 is supplied to, for example, a fan coil unit and used for cooling.

<Outdoor unit 2>
Next, the outdoor unit 2 according to Embodiment 1 will be described with reference to FIGS. 2 to 4. FIG. FIG. 2 is a perspective view showing the appearance of the outdoor unit 2 of FIG. 3 is a top view showing the internal structure of the outdoor unit 2 of FIG. 2. FIG. FIG. 4 is a perspective view showing a main part of the outdoor unit 2 of FIG. 3. FIG. Here, the main part refers to the heat exchanger unit 10 according to the first embodiment. FIG. 4 shows the installation state of the heat exchanger unit 10 inside the outdoor unit 2 .

As shown in FIG. 2, the outdoor unit 2 has a housing panel 20 that covers the outer shell and is formed in a rectangular parallelepiped shape. The outdoor unit 2 is, for example, an outdoor unit of a separate type air conditioner, and includes a front grill 20a from which air is blown to the front side of the housing panel 20 .

As shown in FIG. 3, the interior of the housing panel 20 of the outdoor unit 2 is partitioned into an air passage chamber 26 and a machine chamber 27 by a partition plate 20b. An outdoor fan 25a for an air-refrigerant heat exchanger 25 that exchanges heat between the air and the refrigerant is installed on the front side of the housing panel 20 in the air passage chamber 26. As shown in FIG. An air-refrigerant heat exchanger 25 is mounted on the rear side of the outdoor fan 25a in the air passage chamber 26 in an L shape from the rear side to the side side of the air passage chamber 26 of the housing panel 20. As shown in FIG.

In the machine room 27, as also shown in FIG. 4, a compressor 21 is installed that is connected to the air-refrigerant heat exchanger 25 via the refrigerant pipe 4 and supplies refrigerant to the air-refrigerant heat exchanger 25. It is The machine room 27 also includes an accumulator 24 that stores refrigerant, a flow path switching device 22 that switches the flow of the refrigerant (see FIG. 1), and a plate heat exchanger 100 that exchanges heat between the refrigerant and water (see FIG. 1). 1) is installed. The heat exchanger unit 10 includes a holding case 11 having a first holding member 12, a second holding member 13, and a pedestal portion 14, which will be described later in detail. It is fixed to the machine base 20c by spot welding. A refrigerant pipe 4 for circulating refrigerant is connected to the heat exchanger unit 10 and the compressor 21 . In addition, although not shown, the machine room 27 includes electronic expansion valves 23a and 23b (see FIG. 1) used as refrigerant decompression devices, a current sensor for detecting whether the outdoor unit 2 is in operation, a power module and a An electrical component box is provided in which electrical components such as an inverter board are stored.

<Heat exchanger unit 10>
Next, the heat exchanger unit 10 according to Embodiment 1 will be described with reference to FIGS. 5 to 10. FIG. 5 is an exploded perspective view showing the heat exchanger unit 10 of FIG. 4. FIG. FIG. 6 is an exploded perspective view showing the plate heat exchanger 100 in the heat exchanger unit 10 of FIG. 7 is a perspective view showing the first holding member 12 in the heat exchanger unit 10 of FIG. 5. FIG. 8 is a perspective view showing the second holding member 13 in the heat exchanger unit 10 of FIG. 5. FIG. 9 is a perspective view showing the pedestal portion 14 in the heat exchanger unit 10 of FIG. 5. FIG. FIG. 10 is a perspective view showing a comparison between the minimum volume and maximum volume of the plate heat exchanger 100 in the heat exchanger unit 10 of FIG. In FIG. 10, the heat exchanger unit 10 in the minimum volume state is denoted by 10A, and the heat exchanger unit 10 in the maximum volume state is denoted by 10B.

As shown in FIG. 5, the heat exchanger unit 10 according to the first embodiment includes a plate heat exchanger 100 in which a plurality of plates are stacked, and a plate heat exchanger 100 that is arranged so as to surround the periphery of the plate heat exchanger 100. and a holding case 11 that accommodates the plate heat exchanger 100 . The holding case 11 is composed of a first holding member 12 , a second holding member 13 and a base portion 14 . The holding case 11 is integrally formed by fixing the first holding member 12 and the second holding member 13 and fixing the second holding member 13 and the pedestal portion 14 . In the case of the first embodiment, the holding case 11 is such that the dimension in the depth direction of the holding portion 15 of the plate heat exchanger 100 configured by the first holding member 12 and the second holding member 13 is equal to that of the plate heat exchanger. It can be adjusted according to the number of stacked plates constituting the container 100 .

Here, in Embodiment 1, a known one is used as the plate heat exchanger 100, and the internal configuration will be briefly described with reference to FIG. As shown in FIG. 6, the plate heat exchanger 100 has one outermost plate 101 provided with a refrigerant pipe connection port 101a, and the other outermost plate 102 with a water pipe connection port 102a. be provided. Between the outermost plates 101 and 102, a heat transfer plate 103 having a plurality of corrugated unevenness formed on its surface is arranged side by side. Refrigerant channels 104 and water channels 105 are alternately formed between the heat transfer plates 103 . Refrigerant communication holes 106 are provided in the heat transfer plate 103 to connect each refrigerant channel 104 and the refrigerant pipe connection port 101a. Further, the heat transfer plate 103 is provided with water communication holes 107 for connecting each water flow path 105 and the water pipe connection port 102a. In the plate heat exchanger 100, the number of heat transfer plates 103 is changed according to the capacity band.

7, the first holding member 12 of the holding case 11 has a front surface portion 121 covering the front surface of the plate heat exchanger 100 (see FIG. 5) and a top surface portion 122 covering the top surface. In addition, the first holding member 12 extends from the left and right side edges of the front surface portion 121 to the rear surface side of the plate heat exchanger 100, and has a right flange portion 123 and a left flange portion 124 formed with screw holes 123a and 124a, respectively. have Three screw holes 123a and 124a are formed in each of the right flange portion 123 and the left flange portion 124 so as to be aligned in the vertical direction. A notch portion 121a is formed in the front portion 121, through which the refrigerant pipe 4 (see FIG. 4) connected to the plate heat exchanger 100 is passed. In this case, the notch 121a is, for example, U-shaped, and is formed at two upper and lower locations by opening in the assembly direction of the plate-type heat exchanger 100 in the front surface 121 . As a result, the heat exchanger unit 10 can be assembled even after the refrigerant pipes 4 are welded to the plate heat exchanger 100 . Further, the upper surface portion 122 is formed with screw holes 122 a for screws used for fixing to the second holding member 13 .

As shown in FIG. 8, the second holding member 13 of the holding case 11 includes a rear surface portion 131 covering the rear surface of the plate heat exchanger 100 (see FIG. 5), a bottom surface portion 132 covering the bottom surface, and a right side surface. and a right side portion 133 and a left side portion 134 covering the left side. Further, the second holding member 13 extends from the upper edge of the back surface portion 131 to the front side of the plate heat exchanger 100, and has a screw fixing hole 135a for a screw used for fixing to the first holding member 12. It has an upper flange portion 135 with a ridge. Horizontally extending long holes 133a and 134a are formed in the right side portion 133 and the left side portion 134, respectively. The elongated holes 133a and 134a are arranged in three locations in the vertical direction of the right side portion 133 and the left side portion 134, respectively. The vertical intervals between the three long holes 133a and 134a match the vertical intervals between the three screw holes 123a and 124a in the right flange portion 123 and the left flange portion 124 of the first holding member 12, respectively. . Further, the second holding member 13 has holes 131a formed in the rear surface portion 131 at two upper and lower positions through which the water pipe connection ports 102a (see FIG. 5) provided in the plate heat exchanger 100 pass. The bottom surface portion 132 has a flange portion 136 extending from its front edge toward the base portion 14 side. Screw fixing holes 131b, 133b and 136a for screws used for fixing to the base portion 14 are formed in the lower portion of the back portion 131, the lower portion of the right side portion 133, and the flange portion 136 on the front surface, respectively. .

The pedestal portion 14 of the holding case 11 is a member that fixes the second holding member 13 of the holding case 11 to the outdoor unit base 20c (see FIG. 4) of the housing panel 20 of the outdoor unit 2, which is the attached portion. . As shown in FIG. 9, the base portion 14 is formed in a shape corresponding to the bottom surface portion 132 (see FIG. 8, etc.) of the second holding member 13, and has a flat portion 141 on which the second holding member 13 is placed. . The flat portion 141 has screw fixing holes 141 a for screws used for fixing to the second holding member 13 in the front side edge, left and right side edges, and rear side edge. Note that FIG. 9 is a perspective view in which the screw fixing holes 141a on the left side edge and the rear side edge of the flat portion 141 are positioned on the shadow side, so they are not shown.

In the holding case 11, the first holding member 12 and the second holding member 13 are connected to the screw hole 122a formed in the upper surface portion 122 of the first holding member 12 and the upper flange portion 135 of the second holding member 13. It is screwed through the screw fixing hole 135a. In addition, the holding case 11 is configured such that the first holding member 12 and the second holding member 13 are connected to the screw holes 123a and 124a of the right flange portion 123 and the left flange portion 124 of the first holding member 12 and the second holding member. 13 are screw-fixed through elongated holes 133a and 134a of the right side portion 133 and the left side portion 134, respectively. Further, in the holding case 11, the second holding member 13 and the pedestal portion 14 are arranged such that the screw fixing holes 141a of the flat portion 141 of the pedestal portion 14, the lower portion of the rear portion 131 of the second holding member 13, and the right side portion 133 of the right side portion 133. Screws are fixed through the screw fixing holes 131b, 133b and 136a of the lower and front flange portions 136, respectively. As a result, the holding case 11 has a structure in which the first holding member 12, the second holding member 13, and the pedestal portion 14 for fixing the second holding member 13 in the housing panel 20 of the outdoor unit 2 are integrated. is formed.

In the holding case 11 configured in this manner, the long holes 133a and 134a of the right side portion 133 and the left side portion 134 of the second holding member 13 allow the fixing position of the first holding member 12 to the second holding member 13 to be arbitrarily set. can be changed. That is, when screwing the first holding member 12 to the second holding member 13, the positions of the screw holes 123a and 124a are set within the range of the length of the long holes 133a and 134a. can be freely moved in the horizontal direction. Therefore, since the fixing position of the first holding member 12 with respect to the second holding member 13 can be arbitrarily changed according to the number of the heat transfer plates 103 of the plate heat exchanger 100, there is no need to separately prepare parts. Plate heat exchangers 100 of different capacity bands can be accommodated.

Specifically, as shown in FIG. 10, in the case of the heat exchanger unit 10A in the minimum volume state in which the number of heat transfer plates 103 (see FIG. 6) of the plate heat exchanger 100 is the minimum, the plate heat exchange Since the container 100 is thin, the first holding member 12 is fixed to the second holding member 13 at a recessed position inside the housing portion 15 of the holding case 11 . At this time, the positions of the screw holes 123a and 124a are positioned at the rear side end portions of the long holes 133a and 134a.

On the other hand, in the case of the heat exchanger unit 10B in the maximum capacity state in which the number of heat transfer plates 103 (see FIG. 6) of the plate heat exchanger 100 is the maximum, the thickness of the plate heat exchanger 100 is large. , the first holding member 12 is fixed to the second holding member 13 at a position near the front end of the housing portion 15 of the holding case 11 . At this time, screw holes 123a and 124a are positioned at front end portions of long holes 133a and 134a.

As described above, in the heat exchanger unit 10 of the first embodiment, there is no need to prepare the second holding member 13, which is a component having a different size for each different capacity band, and the second holding member 13 is shared for all It can be used in the ability band of

In FIG. 10, the position of the screw holes 123a and 124a is located at the back side end of the elongated holes 133a and 134a in the case of the heat exchanger unit 10A in the minimum volume state, and the position of the screw holes 123a and 124a is located at the front side end. Although the case of the heat exchanger unit 10B in the maximum capacity state is described as an example, the fixed position of the first holding member 12 with respect to the second holding member 13 varies depending on the thickness of the plate heat exchanger 100. It can be fixed at any position in the horizontal direction of the holes 133a and 134a.

Further, as shown in FIG. 10, the upper surface portion 122 of the first holding member 12 is formed in a size corresponding to the thickness of the plates of the plate heat exchanger 100, that is, the number of stacked heat transfer plates 103. is preferred.

Furthermore, in the first embodiment, the case where the elongated holes 133a and 134a are formed in the right side portion 133 and the left side portion 134 of the second holding member 13 has been described, but other modes are also conceivable. Here, another aspect will be described with reference to FIG. 11 . 11 is a perspective view for explaining another aspect of the heat exchanger unit 10 of FIG. 5. FIG. As shown in FIG. 11, the second holding member 13 has elongated holes 133a and 134a formed in the right side portion 133 and the left side portion 134, and the size of the upper flange portion 135 is extended to the front side. The screw fixing hole 135a may also be formed as a horizontally elongated hole. This makes it possible to more flexibly change the fixing position of the first holding member 12 with respect to the second holding member 13 according to the number of heat transfer plates 103 of the plate heat exchanger 100 . That is, the size of the upper flange portion 135 of the second holding member 13 is extended to the front side, and the screw fixing holes 135a are also elongated, so the size of the upper surface portion 122 of the first holding member 12 needs to be changed. can be reduced. Therefore, the width in which the first holding member 12 can be used increases, and the number of parts to be prepared according to the capacity of the plate heat exchanger 100 can be further reduced.

<Effect in Embodiment 1>
As described above, according to the heat exchanger unit 10 and the outdoor unit 2 of Embodiment 1, in the holding case 11 of the heat exchanger unit 10, the first holding member 12 and the second holding member 13 The depth dimension of the accommodating portion 15 of the configured plate heat exchanger 100 can be adjusted according to the number of stacked heat transfer plates 103 that configure the plate heat exchanger 100 . Therefore, it is possible to reduce the number of different parts for configuring the holding case 11 prepared according to the capacity of the plate heat exchanger 100 . Thus, according to the heat exchanger unit 10 and the outdoor unit 2 of Embodiment 1, the number of parts to be prepared according to the capacity of the plate heat exchanger 100 is reduced, the man-hours for assembly are reduced, and the ease of assembly is improved. be able to.

2 outdoor unit 20 housing panel 20a front grille 20b partition plate 20c outdoor unit base 21 compressor 21a suction muffler 22 flow switching device 23a electronic expansion valve 23b electronic expansion valve 24 accumulator 25 Refrigerant heat exchanger 25a Outdoor fan 26 Air passage chamber 27 Machine room 3 Heat insulating material 4 Refrigerant pipe 10 Heat exchanger unit 10A Heat exchanger unit 10B Heat exchanger unit 11 Holding case 12 Second 1 holding member 121 front part 121a notch part 122 upper surface part 122a screw hole 123 right flange part 123a screw hole 124 left flange part 124a screw hole 13 second holding member 131 rear part 131a hole , 131b screw fixing hole 132 bottom part 133 right side part 133a elongated hole 133b screw fixing hole 134 left side part 134a elongated hole 135 upper flange part 135a screw fixing hole 136 flange part 136a screw Fixing hole 14 Pedestal part 141 Flat part 141a Screw fixing hole 15 Accommodating part 100 Plate heat exchanger 101 Plate 101a Refrigerant pipe connection port 102 Plate 102a Water pipe connection port 103 Heat transfer plate, 104 coolant channel, 105 water channel, 106 coolant communication hole, 107 water communication hole.

Claims (7)

a plate heat exchanger in which a plurality of plates are stacked;
a holding case that houses the plate heat exchanger;
A heat exchanger unit comprising a pedestal portion for fixing the holding case to a mounting portion,
The holding case is
a first holding member having a front surface portion covering the front surface of the plate heat exchanger and an upper surface portion covering the upper surface;
a second holding member having a rear surface portion covering the rear surface of the plate heat exchanger, a bottom surface portion covering the bottom surface, and a right side surface portion and a left side surface portion covering the right side surface and the left side surface;
The first holding member and the second holding member are fixed,
The second holding member and the pedestal are fixed,
The dimension in the depth direction of the accommodating portion of the plate heat exchanger constituted by the first holding member and the second holding member is adjusted according to the number of stacked plates constituting the plate heat exchanger. Possible, heat exchanger unit. The upper surface portion of the first holding member,
2. The heat exchanger unit according to claim 1, wherein the heat exchanger unit is formed in a size corresponding to the number of laminated plates. The first holding member is
having a right flange portion and a left flange portion extending from the left and right side edges of the front portion toward the back side, and having screw holes formed therein;
The second holding member is
an upper flange portion extending from the upper edge of the back portion to the front side and formed with a screw fixing hole through which a screw for fixing with the first holding member is passed;
Each of the right side portion and the left side portion is formed with an elongated hole extending in a horizontal direction,
the first holding member and the second holding member,
screw-fixed through a screw hole formed in the upper surface portion of the first holding member and the screw fixing hole in the upper flange portion of the second holding member;
3. The fixing member is screw-fixed via said screw holes in said right flange portion and said left flange portion of said first holding member and said elongated holes in said right side portion and said left side portion of said second holding member. 3. A heat exchanger unit according to 1 or 2. 4. The heat exchanger unit according to claim 3, wherein said screw fixing holes formed in said upper flange portion of said second holding member are oblong holes. The first holding member is
The heat exchanger unit according to any one of claims 1 to 4, wherein the front portion is formed with a notch portion through which a refrigerant pipe connected to the plate heat exchanger is passed. The second holding member is
A hole is formed in the back portion for penetrating a pipe connection port provided in the plate heat exchanger,
6. The heat exchanger unit according to any one of claims 1 to 5, further comprising a flange portion extending from the front edge of the bottom portion toward the base portion and having a screw fixing hole with the base portion. An outdoor unit comprising the heat exchanger unit according to any one of claims 1 to 6 in a refrigerant circuit.

Images