AU2022414422A1 - Refrigeration cycle device - Google Patents

Abstract

A refrigeration cycle device of an embodiment of the present invention has a machine compartment, a first plate, and a second plate. The machine compartment accommodates component parts. The first plate is provided to a casing of the machine compartment. A first hole into which an anchor bolt is inserted is formed in the first plate. The second plate is provided inside the outer periphery of the casing. A second hole into which a suspension tool is inserted is formed in the second plate. The distance between the normal of the first plate passing through the center of the first hole and the normal of the second plate passing through the center of the second hole is larger than the sum of the radius of the first hole and the radius of the second hole.

Description

[DESCRIPTION] [TITLE OF INVENTION] REFRIGERATION CYCLE DEVICE [TECHNICAL FIELD]

[0001]

An embodiment of the present invention relates to a refrigeration cycle device.

This application claims priority from Japanese Patent Application No. 2021

201743 filed on December 13, 2021, the contents of which are incorporated herein by

reference in their entirety.

[BACKGROUND ART]

[0002]

A refrigeration cycle device is utilized for air conditioning. The refrigeration

cycle device includes a machine room that accommodates component parts therein. The

machine room is fixed on an installation site by bolts or the like. A plurality of machine

rooms may be arranged side by side on the installation site. There is a need to easily

install the refrigeration cycle device.

[CITATION LIST] [PATENT LITERATURE]

[0003]

[Patent Literature 1] PCT International Publication No. WO 2017/216926

[SUMMARY OF THE INVENTION] [PROBLEMS TO BE SOLVED BY THE INVENTION]

[0004]

A problem to be solved by the present invention is to provide a refrigeration

cycle device that can be easily installed.

[MEANS FOR SOLVING THE PROBLEMS]

[0005]

A refrigeration cycle device of an embodiment includes a machine room, a first

plate, and a second plate. The machine room contains component parts. The first plate is

provided in a housing of the machine room. The first plate has a first hole formed therein

into which an anchor bolt is to be inserted. The second plate is provided inside an outer

periphery of the housing. The second plate has a second hole formed therein into which

a hoisting accessory is to be inserted. A distance between a normal line of the first plate

passing through a center of the first hole and a normal line of the second plate passing

through a center of the second hole is greater than the sum of the radius of the first hole

and the radius of the second hole.

[BRIEF DESCRIPTION OF THE DRAWINGS]

[0006]

FIG. I is a perspective view of a refrigeration cycle device.

FIG. 2 is a conceptual circuit diagram of the refrigeration cycle device.

FIG. 3 is a perspective view of a fixed portion.

FIG. 4 is a perspective view of a fixture.

FIG. 5 is a front view of a shackle.

FIG. 6 is a cross-sectional plan view taken along line VI-VI shown in FIG. 4.

[EMBODIMENTS FOR CARRYING OUT THE INVENTION]

[0007]

Hereinafter, a refrigeration cycle device of an embodiment will be described

with reference to the drawings.

FIG. I is a perspective view of a refrigeration cycle device. The refrigeration

cycle device 1 of the embodiment is an air-cooled heat pump type heat source machine.

The refrigeration cycle device 1 includes a plurality of modules 10 (1Oa-1Od). The modules 10 include a heat exchanger 11 and a machine room 12.

[0008]

In the present application, the Z direction, the X direction, and the Y direction of

the orthogonal coordinate system are defined as follows. The Z direction is a vertical

direction, and the +Z direction is an upward direction. The X direction and the Y

direction are horizontal directions. The X direction is a short direction of a housing 13 of

the machine room 12. The Y direction is a longitudinal direction of the housing 13 of the

machine room 12. In the X direction and the Y direction, the direction approaching the

center of the housing 13 may be referred to as an inside, and the direction away from the

center of the housing 13 may be referred to as an outside.

[0009]

The heat exchanger 11 is disposed at the upper half of the module 10. The width

in the X direction of the heat exchanger 11 extends in the +Z direction.

The machine room 12 is disposed at the lower half of the module 10. Part of the

component parts of the refrigeration cycle device 1 is housed inside the housing 13 of the

machine room 12. One end face of the machine room 12 in the Y direction is disposed

inward in the Y direction from one end face of the heat exchanger 11 in the Y direction.

A water outlet 8a and a water inlet 8b, which are described below, are disposed on one

end surface of the machine room 12 in the Y direction. Therefore, this allows space

saving in the module 10. The width in the X direction of the machine room 12 extends in

the -Z direction.

[0010]

The width of the module 10 in the X direction is narrow at the center thereof in

the Z direction and is wide at both ends thereof in the Z direction. The plurality of

modules 1Oa to 1Od are arranged side by side in the X-direction. A working space is formed between adjacent modules 10. An operator enters the working space and maintenance of the refrigeration cycle device 1 is carried out.

[0011]

FIG. 2 is a conceptual diagram of a refrigeration cycle circuit. The refrigeration

cycle device 1 includes a compressor 2, a four-way valve 3, an air heat exchanger 4, an

expansion device 5, a water heat exchanger 6, and a refrigerant flow path 7 that cause

refrigerant to circulate thereto. The air heat exchanger 4 is disposed in the heat

exchanger 11. The compressor 2, the four-way valve 3, the expansion device 5, and the

water heat exchanger 6 are housed in the machine room 12.

[0012]

The compressor 2 compresses a low-pressure gaseous refrigerant taken into the

interior thereof to convert it into a high-temperature and high-pressure gaseous

refrigerant. An accumulator (not shown in the drawings) may be disposed at the

upstream side of the compressor 2. The accumulator separates the gas-liquid two-phase

refrigerant and supplies the gaseous refrigerant to the compressor 2.

[0013]

The four-way valve 3 reverses the flow direction of the refrigerant in the

refrigerant flow path 7 of the air heat exchanger 4, the expansion device 5, and the water

heat exchanger 6.

When the four-way valve 3 is in the state of FIG. 2, the refrigerant discharged

from the compressor 2 flows to the air heat exchanger 4, the expansion device 5, and the

water heat exchanger 6 in this order. At this time, the air heat exchanger 4 functions as a

condenser (radiator) and the water heat exchanger 6 functions as an evaporator (heat

absorber).

[0014]

When the four-way valve 3 is switched from the state of FIG. 2, the refrigerant

discharged from the compressor 2 flows to the water heat exchanger 6, the expansion

device 5, and the air heat exchanger 4 in this order. At this time, the water heat

exchanger 6 functions as a condenser (radiator) and the air heat exchanger 4 functions as

an evaporator (heat absorber).

[0015]

The condenser dissipates heat of the high-temperature and high-pressure gaseous

refrigerant ejected from the compressor 2 and converts the high-temperature and high

pressure gaseous refrigerant into a high-pressure liquid refrigerant.

The expansion device 5 lowers the pressure of the high-pressure liquid

refrigerant fed from the condenser and converts the high-pressure liquid refrigerant into a

low-temperature and low-pressure gas-liquid two-phase refrigerant. For example, the

expansion device 5 is an expansion valve.

The evaporator converts the gas-liquid two-phase refrigerant fed from the

expansion device 5 into a low-pressure gaseous refrigerant. The low-pressure gaseous

refrigerant passing through the evaporator is taken into the compressor 2 described

above.

[0016]

In the water heat exchanger 6, a water flow path 8 is disposed in addition to the

refrigerant flow path 7. The water heat exchanger 6 exchanges heat between refrigerant

and water. When the water heat exchanger 6 functions as a refrigerant evaporator, the

water of the water flow path 8 is cooled. When the water heat exchanger 6 functions as a

refrigerant condenser, the water of the water flow path 8 is heated. The water flow path 8

is connected to an air-conditioner (not shown in the drawings) outside the module 10.

Water flowing out from the air-conditioner flows into the water flow path 8 of the module 10 via the water inlet 8b. Water flowing out from the water flow passage 8 of the module 10 through the water outlet 8a flows into the air-conditioner. The air-conditioner uses the water cooled or heated by the water heat exchanger 6 to perform air conditioning of the air conditioning area. A pump (not shown in the drawings) for circulating water in the water flow path 8 is installed inside or outside the machine room 12.

Note that, the aforementioned refrigeration cycle device 1 may include the

compressor 2, the four-way valve 3, the air heat exchanger 4, the expansion device 5, and

the water heat exchanger 6, each of which are multiple in number, which constitutes a

refrigeration cycle circuit in one module 10, and may include a plurality of refrigeration

cycle circuits.

[0017]

The modules 10 of FIG. 1 are fixed on an installation site by bolts or the like.

The module 10 has fixed portions 15 with respect to the installation site. The outer shape

of the housing 13 of the machine room 12 of the module 10 is rectangular in plan view.

The fixing portions 15 are disposed at the corner portions of the four corners of the

housing 13. Protruding portions 16 protruding from both sides in the X direction are

formed at the lower end of the housing 13. The protruding portions 16 protrude outward

in the X direction and are formed along the Y direction. The fixing portions 15 are

disposed at both ends of the protruding portions 16 in the Y direction.

Here, the width of the protruding portion 16 in the X direction is preferably 3 cm

or more, for example, the width in the X direction of the protruding portion 16 is

approximately 5 cm to 8 cm. In the case in which the above-mentioned modules I0a to

10d are arranged side by side in the X direction, the protruding portions 16 of the

adjacent modules 10 are adjacent to each other, and the upper surfaces thereof can also

be used as a scaffold for an operator.

[0018]

FIG. 3 is a perspective view of the fixed portion. FIG. 4 is a perspective view of

a fixture. The fixture 20 is fixed to a frame 14 or the like of the housing 13 to form the

fixed portion 15. The fixture 20 is formed by pressing a steel sheet material. The fixed

portion 15 includes a first plate 21, a second plate 22, and a third plate 23. The first plate

21, the second plate 22, and the third plate 23 are part of the fixture 20.

[0019]

The first plate 21 is disposed at the corner portion of the housing 13. The first

plate 21 is parallel to the XY plane. The normal line of the first plate 21 is parallel to the

Z direction.

The first plate 21 has a first hole 21h into which an anchor bolt B (refer to FIG.

3) is to be inserted. The first hole 21h penetrates through the first plate 21 in a thickness

direction thereof.

[0020]

The second plate 22 is disposed at the inside of the first plate 21 in the Y

direction. The first plate 21 extends outward from a bottom side 22b of the second plate

22 in the Y direction. The second plate 22 is provided perpendicularly from the first

plate 21. The second plate 22 is parallel to the Z direction. The normal line of the

second plate 22 intersects with the X direction and the Y direction. The outer surface of

the second plate 22 in the Y direction faces outward in the X direction. As shown in

FIG. 4, an acute angle 0 is formed between the bottom side 22b of the second plate 22

and the outer edge 21e of the first plate 21 in the X direction. The outer edge 21e of the

first plate 21 is parallel to the Y direction. The first hole 21h of the first plate 21 is

disposed inside the acute angle 0.

[0021]

As shown in FIG. 3, the second plate 22 has a second hole 22h to which a

hoisting accessory such as a shackle 30 is to be inserted. The second hole 22h penetrates

through the second plate 22 in a thickness direction thereof. A resin ring 24 is attached

along the inner periphery of the second hole 22h. The resin ring 24 protects the coating

of the surface of the fixture 20. The first hole 21h and the second hole 22h are provided

at the end portion of the protruding portion 16 in the Y direction and are disposed below

the upper surface of the protruding portion 16.

[0022]

FIG. 5 is a front view of a shackle. The shackle 30 is a metal part fitting for

connecting a load to a wire or the like. The shackle 30 has a U-shaped member 31 and a

screw member 34. The U-shaped member 31 is formed in a U-shape. A ring-shaped

screw insertion portion 32 is formed at both ends of the U-shaped member 31. The screw

member 34 is inserted into the center hole of the screw insertion portion 32. The screw

member 34 closes an opening of the U-shaped member 31. The radius of the outer

periphery of the screw insertion portion 32 is larger than the radius of a barrel portion 35

of the screw member 34.

[0023]

As shown in FIG. 3, the screw member 34 of the shackle 30 is inserted into the

second hole 22h. A wire (not shown in the drawings) is inserted into the U-shaped

member 31. The module 10 is suspended from the wire and the shackle 30 and is

disposed at the installation site.

[0024]

As shown in FIG. 4, the third plate 23 is disposed at the inside of the second

plate 22 in the Y direction. The third plate 23 is parallel to the YZ plane. As shown in

FIG. 3, the third plate 23 is disposed along the periphery of the housing 13.

The third plate 23 has a third hole 23h. An electric wire connecting adjacent

modules 10a and 10b is inserted into the third hole 23h.

[0025]

As shown in FIG. 3, the anchor bolt B may be utilized to fix the module 10. The

anchor bolt B is previously provided upright at the installation site of the module 10 by a

box removal method or the like. The module 10 is suspended from the shackle 30

inserted into the second hole 22h and is disposed at the installation site. The module 10

is hung down such that the anchor bolt B is inserted into the first hole 21h.

[0026]

It is thought that, of the adjacent modules 1Oa and 1Gb, the second module 1Ob

is disposed in advance, and thereafter the first module 10a is disposed. There is a

possibility that the shackle 30 hanging the first module 10a interferes with the housing 13

of the second module lOb. It is difficult to insert the anchor bolt B into the first hole 21h

of the first module 10a. For this reason, installation of the first module 10a becomes

impossible. For example, in a case in which the shackle 30 was attached to the third hole

23h of the first module 10a, the shackle 30 is likely to interfere with the second module

10b. Particularly, in a case in which a gap between the adjacent modules 10a and 10b is

narrow to achieve space-saving, the shackle 30 is likely to interfere with the second

module 10b.

[0027]

The third plate 23 having the third hole 23h is disposed along the periphery of

the housing 13. In contrast, the second plate 22 having the second hole 22h is disposed

inside the outer periphery of the housing. Consequently, the shackle 30 inserted into the

second hole 22h of the first module 10a is not likely to interfere with the second module

1Ob. The anchor bolt B is likely to be inserted into the first hole 21h of the first module

10a. Accordingly, the refrigeration cycle device I can be easily installed. It is possible

to narrow the distance between the adjacent modules 10a and 10b, and space-saving is

achieved.

[0028]

The first hole 21h is disposed at the corner portions of the housing 13 to firmly

fix the module 10. The second hole 22h is also disposed close to the corner portions of

the housing 13 to stably lift the module 10. If the shackle 30 inserted into the second

hole 22h interferes with the anchor bolt B to be inserted into the first hole 21h,

installation of the module 10 becomes impossible. For example, in a case in which the

second plate 22 having the second hole 22h is parallel to the XZ plane, the shackle 30

inserted into the second hole 22h is likely to interfere with the anchor bolt B.

[0029]

By disposing the second hole 22h above the upper end of the anchor bolt B,

interference between the shackle 30 and the anchor bolt B is avoided. However, new

provision of a metal part different from the fixture 20 to form the second hole 22h brings

an increase in cost. As described above, an operator enters the working space between

the adjacent modules 10. Formation of the second hole 22h by extending the fixture 20

upward brings an interference with the work.

[0030]

FIG. 6 is a cross-sectional plan view taken along line VI-VI shown in FIG. 4.

The normal line of the first plate 21 passing through the center of the first hole 21h is

defined as a first normal line 21c. The normal line of the second plate 22 passing

through the center of the second hole 22h is defined as a second normal line 22c. The

maximum value of the diameter of the anchor bolt B to be inserted into the first hole 21h

is the diameter of the first hole 21h. The radius of the first hole 21h is defined as a first radius 21r. The maximum value of the diameter of the barrel portion 35 of the screw member 34 of the shackle 30 to be inserted into the second hole 22h is the diameter of the second hole 22h. The radius of the second hole 22h is defined as a second radius 22r.

The distance D between the first normal line 21c and the second normal line 22c is

greater than the sum of the first radius 21r and the second radius 22r.

[0031]

Provisionally, it is thought that the distance D between the first normal line 21c

and the second normal line 22c is equal to the sum of the first radius 21r and the second

radius 22r. At this time, in FIG. 6, the straight line L passing through the end portion of

the second hole 22h is in contact with the periphery of the first hole 21h. The second

plate 22 is disposed vertical to the straight line L. The second hole 22h is formed in the

second plate 22. As described above, the second plate 22 is disposed perpendicular to the

straight line that is in contact with the periphery of the first hole 21h in FIG. 6, and the

second hole 22h is formed in the second plate 22.

[0032]

As described above, the distance D between the first normal line 21c of the first

plate 21 passing through the center of the first hole 21h and the second normal line 22c of

the second plate 22 passing through the center of the second hole 22h is greater than the

sum of the first radius 21r of the first hole 21h and the second radius 22r of the second

hole 22h.

[0033]

For this reason, a space is formed between the screw member 34 of the shackle

30 to be inserted into the second hole 22h and the anchor bolt B to be inserted into the

first hole 21h. Interference between the screw member 34 of the shackle 30 and the

anchor bolt B is avoided. Provisionally, in a case in which the screw insertion portion 32 of the shackle 30 comes close to the anchor bolt B, the shackle 30 is only necessary to move parallel to the second normal line 22c. Consequently, the screw insertion portion

32 of the shackle 30 is separated from the anchor bolt B, interference between the

shackle 30 and the anchor bolt B is avoided. As a result, insertion of the anchor bolt B

into the first hole 21h of the first module 10a is completed. Accordingly, the

refrigeration cycle device I can be easily installed.

[0034]

The outer shape of the housing 13 is rectangular in plan view. The first hole 21h

is disposed at the corner portion of the housing 13 and inside the acute angle 0 formed by

the long side of the housing 13 and the bottom side 22b of the second plate 22.

As the second plate 22 is inclined at the acute angle 0 with respect to the Y

direction, even in a case of providing the first hole 21h and the second hole 22h inside a

narrow and small region, they can be disposed so as to avoid each of hole diameter

ranges, and the refrigeration cycle device I having a high degree of workability and

installation with a configuration having required strength and size.

Note that, as the acute angle 0 is set to 400 to 80°, the first hole 21h and the

second hole 22h capable of using the general-purpose shackle 30 and the anchor bolt B

are realized while the width of the protruding portion 16 being necessity minimum.

[0035]

The first hole 21h is disposed at the corner portion of the housing 13 and inside

the acute angle 0 formed by the long side of the housing 13 and the bottom side 22b of

the second plate 22. Accordingly, the second hole 22h is disposed close to the corner

portion of the housing 13. The module 10 is stably lifted by inserting the shackle 30 into

the second hole 22h.

The shackle 30 inserted into the second hole 22h is disposed across the inside and outside of the housing 13. A degree of protrusion of the shackle 30 to the outside of housing 13 is small. Even in a case in which a gap between the adjacent modules is narrow, the shackle 30 is not likely to interfere with the adjacent module 10. The arrangement space of the shackle 30 inside the housing 13 is small. The housing 13 is downsized.

[0036]

The machine rooms 12 of the module 10 are arranged side by side in the X

direction.

Even in a case in which a gap between the machine rooms 12 of the adjacent

modules is narrow, the shackle 30 is not likely to interfere with the adjacent machine

room 12. Accordingly, downsizing of the refrigeration cycle device 1 is achieved.

The protruding portion 16 that protrudes outward in the X direction and is along

the Y direction is formed at the lower end of the housing 13. The first hole 21h and the

second hole 22h are provided at the end portion of the protruding portion 16 in the Y

direction and are disposed below the upper surface of the protruding portion 16.

The shape of the fixture 20 does not extend above the protruding portion 16, and

there is no projecting portion on the upper surface of the protruding portion 16.

Therefore, even when the upper surface of the protruding portion 16 is used as a scaffold

for an operator, it does not interfere with the work, deterioration of workability is

prevented, and work safety is also improved.

With this configuration, when the plurality of the modules 10 are adjacently

installed in a limited space, space efficiency is not reduced. It is possible to provide the

refrigeration cycle device 1 having a high degree of workability during installation, a

high degree of maintenance workability after installation, and a high degree of

workability when the device is replaced.

[0037]

The refrigeration cycle device 1 of the embodiment is a heat source machine

including the water heat exchanger 6 and includes the water outlet 8a and the water inlet

8b. In contrast, the refrigeration cycle device 1 may be an outdoor unit not including the

water heat exchanger 6 and may include a refrigerant inlet port and a refrigerant outlet.

The shackle 30 is inserted into the second hole 22h of the embodiment. In

contrast, a hoisting accessory other than the shackle 30 may be inserted into the second

hole 22h.

[0038]

According to at least one embodiment described above, the distance D between

the first normal line 21c and the second normal line 22c is greater than the sum of the

first radius 21r and the second radius 22r. Therefore, the refrigeration cycle device 1 can

be easily installed.

[0039]

While certain embodiments have been described, these embodiments have been

presented by way of example only, and are not intended to limit the scope of the

inventions. Indeed, the novel embodiments described herein may be embodied in a

variety of other forms; furthermore, various omissions, substitutions and changes in the

form of the embodiments described herein may be made without departing from the spirit

of the inventions. The accompanying claims and their equivalents are intended to cover

such forms or modifications as would fall within the scope and spirit of the inventions.

[DESCRIPTION OF REFERENCE NUMERALS]

[0040]

B...anchor bolt, D...distance, O...acute angle, 1...refrigeration cycle device,

12...machine room, 13...housing, 16...protruding portion, 21...first plate, 21c...first normal line (normal line), 21h...first hole, 22...second plate, 22b...bottom side,

22c...second normal line (normal line), 22h...second hole, 30...shackle (hoisting

accessory).

Claims (4)

1. [CLAIMS]

   [Claim 1]

   A refrigeration cycle device comprising:

   a machine room that contains component parts;

   a first plate that is provided in a housing of the machine room and has a first

   hole formed therein into which an anchor bolt is to be inserted; and

   a second plate that is provided inside an outer periphery of the housing and has a

   second hole formed therein into which a hoisting accessory is to be inserted, wherein

   a distance between a normal line of the first plate passing through a center of the

   first hole and a normal line of the second plate passing through a center of the second

   hole is greater than a sum of a radius of the first hole and a radius of the second hole.
2. [Claim 2]

   The refrigeration cycle device according to claim 1, wherein

   an outer shape of the housing in plan view is a rectangular shape, and

   the first hole is disposed at a corner portion of the housing and inside an acute

   angle formed by a long side of the housing and a bottom side of the second plate.
3. [Claim 3]

   The refrigeration cycle device according to claim 2, wherein

   a lower end of the housing has a protruding portion that protrudes outward in a

   short direction of the housing and is formed along a longitudinal direction of the housing,

   and

   the first hole and the second hole are provided at the end portion of the

   protruding portion in the longitudinal direction and are disposed below an upper surface of the protruding portion.
4. [Claim 4]

   The refrigeration cycle device according to any one of claims I to 3, wherein

   the machine rooms are arranged side by side in a short direction of the housing.