WO2021024406A1

WO2021024406A1 - Chilling unit and chilling unit system

Info

Publication number: WO2021024406A1
Application number: PCT/JP2019/031083
Authority: WO
Inventors: 翔平竹中; 拓也伊藤; 善生山野; 仁隆門脇; 昂仁彦根
Original assignee: 三菱電機株式会社
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2021-02-11
Also published as: JP7204928B2; JPWO2021024406A1

Abstract

This chilling unit comprises: a plurality of air heat exchangers that exchange heat between a refrigerant and air; a fan that is located above the plurality of air heat exchangers; and a mechanical compartment unit formed in the shape of a long box in which the plurality of air heat exchangers are installed. This chilling unit is provided with a heat generating part that is formed in a box shape and that generates heat during operation of the chilling unit by electric circuit components housed inside, which are necessary for the operation of the chilling unit. The heat generating part is disposed on a longitudinal end side of the chilling unit so as to be on an air flow drawn into the plurality of air heat exchangers by driving of the fan.

Description

Chilling unit and chilling unit system

The present invention relates to a chilling unit constituting an air conditioner, a heat pump hot water supply device, a refrigerating device, or the like, and a chilling unit system having a plurality of the chilling units.

Conventionally, a chilling unit, which is a heat pump type heat source machine, in which heat pump components such as an air heat exchanger, a blower, a compressor, and a heat exchanger are housed in a housing has been proposed (for example, Patent Document 1). reference). The chilling unit of Patent Document 1 includes a housing including an upper housing and a lower housing, an air heat exchanger and a blower are housed in the upper housing, and a compressor and a control box are contained in the upper housing. It is housed in the lower housing.

Japanese Patent No. 5500725

However, the chilling unit of Patent Document 1 has an electric device such as a compressor and an expansion valve inside the lower housing, and in order to prevent water such as rain from entering the lower housing installed outdoors. , It is necessary to increase the airtightness of the lower housing. Since the temperature inside the lower housing rises because the lower housing having high airtightness has a heating element such as a control box, it is necessary to exhaust the heat inside the lower housing by using a cooling fan. In addition, the control box has a device such as an inverter that generates heat and is equipped with a heat radiating plate. However, since the heat radiating plate alone cannot cope with heat dissipation in the highly airtight lower housing, the lower housing is , It is necessary to equip a cooling fan to cope with heat dissipation of a heating element such as a control box. Therefore, the chilling unit of Patent Document 1 requires a space for installing a cooling fan inside the lower housing.

The present invention is for solving the above-mentioned problems, and is a chilling unit and a chilling unit system that do not require a space for installing a cooling fan inside in the machine room unit corresponding to the lower housing. The purpose is to provide.

The chilling unit according to the present invention is formed in a long box shape with a plurality of air heat exchangers that exchange heat between a refrigerant and air, a fan arranged above the plurality of air heat exchangers, and a long box. , A chilling unit including a machine room unit on which a plurality of air heat exchangers are mounted, which is formed in a box shape and is chilled by electric circuit parts necessary for operating the chilling unit housed inside. A heating element that generates heat during operation of the unit is provided, and the heating element is arranged on a flow of air sucked into a plurality of air heat exchangers by driving a fan, and is arranged on the end face side in the longitudinal direction of the chilling unit. Is what it is.

The chilling unit system according to the present invention is configured by installing a plurality of the above-mentioned chilling units.

According to the present invention, the heating element of the chilling unit is arranged on the flow of air sucked into the air heat exchanger by driving the fan, and is arranged on the end face side in the longitudinal direction (X-axis direction) of the chilling unit. ing. Therefore, the chilling unit can allow the fan used to form a flow for passing air through the outdoor heat exchanger to also serve as a cooling fan for cooling the heating element. As a result, the chilling unit does not need to provide a space for installing the cooling fan inside the machine room unit.

It is a perspective view of the chilling unit which concerns on Embodiment 1. FIG. It is a side view of the chilling unit which concerns on Embodiment 1. FIG. It is a front view of the chilling unit which concerns on Embodiment 1. FIG. It is a conceptual diagram which shows schematic structure of the machine room unit shown in FIG. It is a top view which shows schematic the internal structure of the machine room unit shown in FIG. It is a front view of the end face side in the longitudinal direction of the chilling unit which concerns on Embodiment 1. FIG. FIG. 6 is a schematic view of an end portion of a chilling unit at a cross-sectional position taken along the line AA shown in FIG. It is a conceptual diagram which showed the exhaust heat path of the heating element in the chilling unit which concerns on Embodiment 1. FIG. FIG. 6 is a schematic view of an end portion of a chilling unit of a modified example at the AA line cross-sectional position shown in FIG. It is a conceptual diagram which showed the exhaust heat path of the heating element in the chilling unit shown in FIG. It is a front view of the end face side in the longitudinal direction of the chilling unit which concerns on Embodiment 2. FIG. It is the schematic of the end part of the chilling unit at the cross-sectional position of line BB shown in FIG. It is a conceptual diagram which showed the exhaust heat path of the heating element in the chilling unit which concerns on Embodiment 2. It is the schematic of the end part of the chilling unit of the modification in the cross-sectional position of line BB shown in FIG. It is a conceptual diagram which showed the exhaust heat path of the heating element in the chilling unit shown in FIG. It is a front view of the end face side in the longitudinal direction of the chilling unit which concerns on Embodiment 3. FIG. FIG. 6 is a schematic view of an end portion of a chilling unit at a cross-sectional position taken along the line CC shown in FIG. It is a conceptual diagram which showed the exhaust heat path of the heating element in the chilling unit which concerns on Embodiment 3. FIG. FIG. 6 is a schematic view of an end portion of a chilling unit of a modified example at the CC line cross-sectional position shown in FIG. It is a conceptual diagram which showed the exhaust heat path of the heating element in the chilling unit shown in FIG. It is a front view of the end face side in the longitudinal direction of the chilling unit which concerns on Embodiment 4. FIG. FIG. 5 is a schematic view of an end portion of the chilling unit at a cross-sectional position taken along the DD line in FIG. It is a conceptual diagram which showed the exhaust heat path of the heating element in the chilling unit which concerns on Embodiment 4. FIG. It is the schematic of the end part of the chilling unit of the modification in the cross-sectional position of the DD line shown in FIG. It is a conceptual diagram which showed the exhaust heat path of the heating element in the chilling unit shown in FIG. It is a front view of the end face side in the longitudinal direction of the chilling unit which concerns on embodiment 5. It is a front view of the end face side in the longitudinal direction of another chilling unit which concerns on Embodiment 5. It is a perspective view which showed the chilling unit system which concerns on Embodiment 6.

Hereinafter, the chilling unit 100 and the chilling unit system 110 according to the embodiment will be described with reference to drawings and the like. In the following drawings including FIG. 1, the relative dimensional relationships and shapes of the constituent members may differ from the actual ones. Further, in the following drawings, those having the same reference numerals are the same or equivalent thereof, and this shall be common to the entire text of the specification. In addition, terms indicating directions (for example, "top", "bottom", "right", "left", "front", "rear", etc.) are used as appropriate for ease of understanding. For convenience of explanation, it is described as such, and does not limit the arrangement and orientation of the device or component.

Embodiment 1.
[Chilling unit 100]
FIG. 1 is a perspective view of the chilling unit 100 according to the first embodiment. FIG. 2 is a side view of the chilling unit 100 according to the first embodiment. FIG. 3 is a front view of the chilling unit 100 according to the first embodiment. Note that FIG. 3 is a front view of the chilling unit 100 as viewed in the direction of the white arrow in FIG. The white arrow AR shown in FIG. 3 shows an example of the direction in which air flows. The overall image of the chilling unit 100 will be described with reference to FIGS. 1 to 3. The X-axis shown in the following drawings including FIG. 1 indicates the longitudinal direction of the chilling unit 100, the Y-axis indicates the width direction or the left-right direction of the chilling unit 100, and the Z-axis indicates the vertical direction of the chilling unit 100. It is a thing. In addition, the positional relationship between the constituent members (for example, the vertical relationship, etc.) in the specification is, in principle, when the chilling unit 100 is installed in a usable state.

The chilling unit 100 is used as a heat source device for the chiller device. A heat transfer fluid such as water or antifreeze is supplied to the chilling unit 100 from a load side unit (not shown), and the heat transfer fluid is cooled or heated in the chilling unit 100 and supplied to the load side unit. The chilling unit 100 supplies cold heat or hot heat to the load side unit by circulating the heat transfer fluid in this way.

The chilling unit 100 is formed in a long shape, and includes an air heat exchanger 1 constituting a refrigeration cycle on the heat source side, a support column 70, a fan 5, a machine room unit 4, and a heating element 80. doing. The chilling unit 100 is formed in a Y shape by the air heat exchanger 1 and the machine room unit 4 when viewed in the longitudinal direction (X-axis direction).

(Air heat exchanger 1)
The air heat exchanger 1 exchanges heat between the refrigerant flowing inside and air, and functions as an evaporator or a condenser. The air heat exchanger 1 has a plurality of heat transfer tubes 7 and a plurality of fins 8. The air heat exchanger 1 is, for example, a parallel flow type heat exchanger, and has a pair of headers (not shown), a plurality of heat transfer tubes 7, and a plurality of fins 8. The heat transfer tube 7 is, for example, an aluminum flat tube, and the fin 8 is, for example, a corrugated fin. The air heat exchanger 1 is not limited to the parallel flow type heat exchanger. The air heat exchanger 1 may be, for example, a fin-and-tube type heat exchanger in which a plurality of plate-shaped fins 8 are arranged in parallel and a heat transfer tube 7 penetrates the plurality of fins 8. The air heat exchanger 1 has four air heat exchangers 1 of an air heat exchanger 1A, an air heat exchanger 1B, an air heat exchanger 1C, and an air heat exchanger 1D. The air heat exchanger 1A is the first heat exchanger of the present invention, the air heat exchanger 1B is the second heat exchanger of the present invention, and the air heat exchanger 1C is the third heat exchange of the present invention. The air heat exchanger 1D is the fourth heat exchanger of the present invention.

In the lateral direction (Y-axis direction) of the machine room unit 4, the air heat exchanger 1A and the air heat exchanger 1B are arranged so as to face each other. In the pair of air heat exchangers 1 composed of the air heat exchanger 1A and the air heat exchanger 1B, the upper end distance SP1 between the upper end portions 11a on the side far from the machine room unit 4 is the lower end portion on the side closer to the machine room unit 4. It is tilted so as to be larger than the lower spacing SP2 between 11b. That is, as shown in FIG. 3, the air heat exchanger 1A and the air heat exchanger 1B are arranged so as to form a V shape when viewed from the front of the chilling unit 100. In the lateral direction (Y-axis direction) of the machine room unit 4, both the air heat exchanger 1C and the air heat exchanger 1D facing each other are similarly inclined and arranged in a V shape. In the first embodiment, the inclination angle α of the air heat exchanger 1A is, for example, 65 degrees to 80 degrees. The air heat exchanger 1B, the air heat exchanger 1C, and the air heat exchanger 1D are arranged so that the inclination angle is 65 to 80 degrees, similarly to the air heat exchanger 1A.

A top frame 60 is provided above the air heat exchanger 1A, the air heat exchanger 1B, the air heat exchanger 1C, and the air heat exchanger 1D. The top frame 60 constitutes the upper wall of the chilling unit 100.

In the lateral direction (Y-axis direction) of the chilling unit 100, a side panel 50 is arranged on one side surface of the chilling unit 100 so as to cover the space between the air heat exchanger 1A and the air heat exchanger 1C. ing. The side panel 50 is a metal panel. The side panel 50 is not limited to a metal panel, and may be a panel made of another material. The side panel 50 is a plate-shaped panel formed in a substantially rectangular shape. The side panel 50 is provided so as to extend in the vertical direction (Z-axis direction) and the longitudinal direction (X-axis direction). The side panel 50 is arranged along the inclination of the air heat exchanger 1 described above. In the lateral direction (Y-axis direction) of the chilling unit 100, a side panel 50 is also provided on the other side surface of the chilling unit 100 so as to cover the space between the air heat exchanger 1B and the air heat exchanger 1D. Have been placed.

In the longitudinal direction (X-axis direction) of the chilling unit 100, a side panel 51 is arranged on one side surface of the chilling unit 100 so as to cover the space between the air heat exchanger 1A and the air heat exchanger 1B. There is. That is, the pair of air heat exchangers 1 have side panels 51 arranged at the end portions of the chilling unit 100 in the longitudinal direction (X-axis direction) so as to close the space between the pair of air heat exchangers 1. doing. The side panel 51 is a metal panel. The side panel 51 is not limited to a metal panel, and may be a panel made of another material. The side panel 51 is a plate-shaped panel formed in a substantially trapezoidal shape. The side panel 51 has an upper edge portion 51a formed longer than the lower edge portion 51b. The side panel 51 is provided so as to extend in the vertical direction (Z-axis direction) and the lateral direction (Y-axis direction). The side panel 51 is arranged so as to cover a part of the end portions of the air heat exchanger 1A and the air heat exchanger 1B in the longitudinal direction (X-axis direction) of the chilling unit 100. In the longitudinal direction (X-axis direction) of the chilling unit 100, a side panel 51 is also arranged on the other side surface of the chilling unit 100 so as to cover the space between the air heat exchanger 1C and the air heat exchanger 1D. Has been done. The side panel 51 is arranged so as to cover a part of the end portions of the air heat exchanger 1C and the air heat exchanger 1D in the longitudinal direction (X-axis direction) of the chilling unit 100.

(Support pillar 70)
The top frame 60 is fixed to the machine room unit 4 by the support pillar 70. The support pillar 70 is a metal pillar. The support pillar 70 is not limited to a metal pillar, and may be a pillar formed of another material as long as the strength can be ensured. Further, the support pillar 70 is formed, for example, in a prismatic shape, a columnar shape, or a plate shape, and the shape is not limited as long as the support pillar 70 is formed in a columnar shape. Support columns 70 are provided at both ends of the chilling unit 100 in the longitudinal direction (X-axis direction). Two support columns 70 are arranged at each end of the chilling unit 100 in the longitudinal direction (X-axis direction). The two support columns 70 are formed so as to extend in the vertical direction of the chilling unit 100, and are arranged so as to be spaced apart from each other in the lateral direction (Y-axis direction) of the chilling unit 100. The upper end of the support pillar 70 is fixed to the top frame 60, and the lower end is fixed to the machine room unit 4. At least a part of the support column 70 comes into contact with the side panel 51.

(Fan 5)
The top frame 60 is provided with the above-mentioned fan 5. The fan 5 passes through the air heat exchanger 1 and forms a flow of air discharged from an air outlet 14 such as a bell mouth 6A described later. As shown in FIG. 3, when the fan 5 is driven, air is sucked into the space formed by the air heat exchanger 1, and the sucked air is discharged to the outside from the air outlet 14. The fan 5 is a blower means including an axial fan, and generates an air flow for efficiently performing heat exchange in the air heat exchanger 1. Further, the fan 5 forms a flow of air flowing along the heating element 80, which will be described later, and a flow of air passing through the heating element 80. Then, the fan 5 generates an air flow for efficiently discharging the heat generated by the heating element 80. As described above, when the fan 5 is driven, air is sucked into the space formed by the air heat exchanger 1, and the sucked air is discharged to the outside from the air outlet 14. At this time, the heat generated in the heating element 80 is also discharged to the outside of the chilling unit 100 together with the air by the flow of air driven by the fan 5. The fan 5 has four fans 5 of a fan 5A, a fan 5B, a fan 5C, and a fan 5D.

Further, the top frame 60 is provided with a bell mouth 6A, a bell mouth 6B, a bell mouth 6C, and a bell mouth 6D. A fan 5A, a fan 5B, a fan 5C, and a fan 5D are arranged inside the bell mouth 6A, the bell mouth 6B, the bell mouth 6C, and the bell mouth 6D, respectively.

An air outlet 14 is formed at the upper ends of the bell mouth 6A, the bell mouth 6B, the bell mouth 6C, and the bell mouth 6D. The chilling unit 100 is in a "top flow form" in which the blowout side of the fan 5 faces upward. A fan guard 17 is provided at each of the air outlets 14 of the bell mouth 6A, the bell mouth 6B, the bell mouth 6C, and the bell mouth 6D, and the fan 5A, the fan 5B, the fan 5C, and the fan 5D are fans, respectively. It is covered with a guard 17.

FIG. 4 is a conceptual diagram schematically showing the structure of the machine room unit 4 shown in FIG. The space occupied by the machine room unit 4 in FIGS. 1 and 4 is shown by a dotted line. The structure of the machine room unit 4 will be described with reference to FIGS. 1 and 4. The machine room unit 4 is formed in a long box shape and is formed in a rectangular parallelepiped shape. The machine room unit 4 has a frame 40 formed in a rectangular parallelepiped shape and a side wall 45 that covers a space between the frames 40.

The frame 40 has an underframe 41, a gate pillar 42, an intermediate pillar 43, and an upper beam 44. The gate pillar 42 has four gate pillars 42, which are a gate pillar 42A, a gate pillar 42B, a gate pillar 42C, and a gate pillar 42D. The intermediate pillar 43 has four intermediate pillars 43 of the intermediate pillar 43A, the intermediate pillar 43B, the intermediate pillar 43C, and the intermediate pillar 43D. The underframe 41 is formed in a rectangular shape in a plan view, and constitutes the bottom portion of the frame 40.

The gate pillar 42A, the gate pillar 42B, the gate pillar 42C, and the gate pillar 42D are provided so as to extend in a direction orthogonal to the underframe 41 at the four corners of the underframe 41. The

intermediate pillars

43A and 43B are provided at intervals between the gate pillars 42A and the gate pillars 42C in the longitudinal direction (X-axis direction) of the underframe 41. The

intermediate pillars

43C and 43D are provided at intervals between the gate pillars 42B and the gate pillars 42D in the longitudinal direction (X-axis direction) of the underframe 41. The intermediate pillar 43A, the intermediate pillar 43B, the intermediate pillar 43C, and the intermediate pillar 43D are provided so as to extend in a direction orthogonal to the underframe 41. The upper beam 44 is provided on the gate pillar 42A, the gate pillar 42B, the gate pillar 42C, and the gate pillar 42D, and the intermediate pillar 43A, the intermediate pillar 43B, the intermediate pillar 43C, and the intermediate pillar 43D. The structure of the frame 40 described above is an example, and is not limited to the above structure.

A base 10 is provided on the upper beam 44 of the machine room unit 4. The base 10 is supported by a gate pillar 42 and an intermediate pillar 43. The above-mentioned air heat exchanger 1A, air heat exchanger 1B, air heat exchanger 1C, and air heat exchanger 1D are arranged on the base 10. That is, the plurality of air heat exchangers 1 are mounted on the upper part of the machine room unit 4. A drain pan 55 is provided on the upper part of the machine room unit 4. The drain pan 55 receives water droplets drained from the air heat exchanger 1. The drain pan 55 is arranged below the air heat exchanger 1 in order to receive water droplets falling from the air heat exchanger 1. The drain pan 55 is provided so as to extend in the longitudinal direction (X-axis direction) of the machine room unit 4. The drain pan 55 collects water droplets naturally flowing down from the air heat exchanger 1 as drain water and guides the water droplets to a discharge port (not shown).

The side walls 45 are arranged at both ends of the machine room unit 4 in the longitudinal direction (X-axis direction) and at both ends of the machine room unit 4 in the lateral direction (Y-axis direction). It has two side walls 45b. The first side wall 45a is a plate-shaped side wall provided so as to extend in the vertical direction (Z-axis direction) and the lateral direction (Y-axis direction). The first side wall 45a is arranged so as to cover the space formed between the gate pillar 42A and the gate pillar 42B. Further, the first side wall 45a is arranged so as to cover the space formed between the gate pillar 42C and the gate pillar 42D. The second side wall 45b is a plate-shaped side wall provided so as to extend in the vertical direction (Z-axis direction) and the longitudinal direction (X-axis direction). The second side wall 45b is formed between a space formed between the gate pillar 42A and the intermediate pillar 43A, a space formed between the intermediate pillar 43A and the intermediate pillar 43B, and between the intermediate pillar 43B and the gate pillar 42C. They are arranged so as to cover each space. Further, the second side wall 45b is formed between a space formed between the gate pillar 42B and the intermediate pillar 43C, a space formed between the intermediate pillar 43C and the intermediate pillar 43D, and between the intermediate pillar 43D and the gate pillar 42D. It is arranged so as to cover each of the created spaces.

FIG. 5 is a plan view schematically showing the internal structure of the machine room unit 4 shown in FIG. A compressor 31, a flow path switching device 33, a heat exchanger 3, and a decompression device (not shown) are housed inside the machine room unit 4. Then, the compressor 31, the flow path switching device 33, the heat exchanger 3, the depressurizing device, and the air heat exchanger 1 are connected in series by the refrigerant pipe to form a refrigerant circuit. Further, the heat exchangers 3 of the plurality of chilling units 100 are connected in parallel by water pipes, and the heat transfer fluid in the water pipes passes through the heat exchangers 3 by the pump unit (not shown). It is configured to circulate to the load side unit (not shown).

The compressor 31 sucks in the refrigerant in the low temperature and low pressure state, compresses the sucked refrigerant into the refrigerant in the high temperature and high pressure state, and discharges it. The flow path switching device 33 is, for example, a four-way valve, and switches the flow path of the refrigerant by controlling the control device (not shown). The heat exchanger 3 exchanges heat between the refrigerant and a heat transfer fluid such as water or antifreeze. The pressure reducing device is, for example, an expansion valve, which reduces the pressure of the refrigerant.

(Heating element 80)
FIG. 6 is a front view of the chilling unit 100 according to the first embodiment on the end face 20A side in the longitudinal direction. FIG. 7 is a schematic view of the end portion of the chilling unit 100 at the cross-sectional position taken along the line AA shown in FIG. The heating element 80 will be described with reference to FIGS. 1, 6 and 7. The heating element 80 generates heat during operation of the chilling unit 100, and is, for example, a control box or an active filter. The heating element 80 is formed in a box shape, and heat is generated during the operation of the chilling unit 100 by the electric circuit components housed therein and necessary for the operation of the chilling unit 100. When the heating element 80 is a control box, inside the heating element 80, as electric circuit components, for example, a control board for controlling the flow path switching device 33, a control board for controlling the opening degree of the decompression device, and the like. Alternatively, an inverter 81 or the like that controls the rotation speed of the compressor 31 or the like is housed. When the heating element 80 is a control box, the heating element 80 may be provided with a heat sink 82 according to the installation position of a device that generates heat such as an inverter 81.

The heating element 80 is formed in a box shape to prevent rainwater and the like from entering. The shape of the heating element 80 may be formed in a box shape, and the shape is not limited unless otherwise specified. For example, the heating element 80 may be formed in various shapes such as a rectangular parallelepiped shape, a columnar shape, a spherical shape, a hemispherical shape, or a combination thereof.

The heating element 80 is arranged on the flow of air sucked into the air heat exchanger 1 by driving the fan 5. Further, the heating element 80 is arranged on the end surface 20A side in the longitudinal direction (X-axis direction) of the chilling unit 100. The heating element 80 is located at the end of the chilling unit 100 in the longitudinal direction (X-axis direction) in the longitudinal direction (X-axis direction), the lateral direction (Y-axis direction), and the vertical direction (Z-axis direction) of the chilling unit 100. It is formed in an extending box shape. The heating element 80 is arranged not on the lower machine room unit 4 side but on the upper air heat exchanger 1 side in the vertical direction of the chilling unit 100. That is, the heating element 80 is arranged on the shorter side surface side of the air heat exchanger 1 arranged in a long shape. The heating element 80 is arranged at the end of the chilling unit 100 in the longitudinal direction (X-axis direction) so as to face the side panel 51.

The heating element 80 is attached to each of the support columns 70 across the two support columns 70. As shown in FIG. 7, the width WA1 in the left-right direction (Y-axis direction) of the heating element 80 is between the outer walls 71 of the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100. It is formed so as to be equal to the distance LA1. The heating element 80 is arranged so as to face the air heat exchanger 1 via the two support columns 70. That is, the heating element 80 is arranged adjacent to the air heat exchanger 1 at the end of the chilling unit 100 in the longitudinal direction (X-axis direction). Therefore, the chilling unit 100 can cool the heating element 80 by utilizing the flow of air generated by the heat exchange fan 5 in the air heat exchanger 1.

Regarding the mounting structure of the heating element 80, the heating element 80 is not limited to the structure of being mounted on each support column 70 straddling the two support columns 70. The heating element 80 may be arranged on the end surface 20A side in the longitudinal direction (X-axis direction) of the chilling unit 100. For example, if the strength of the side panel 51 can be secured, the heating element 80 may be the side panel 51. It may be attached to. Further, the heating element 80 may be arranged on the end surface 20A side in the longitudinal direction (X-axis direction) of the chilling unit 100. For example, if the strength of the top frame 60 can be secured, the heating element 80 is suspended. It may be fixed and supported on the top frame 60 by lowering or the like.

In the heating element 80, at least one or more through holes may be formed in the side wall forming the side surface through the heat generation path. For example, as shown in FIG. 7, the heating element 80 may have an inner side wall through hole 84a formed in the inner side wall 83a on the side facing the air heat exchanger 1. In this case, the side panel 51 may have a panel through hole 51h formed at a position facing the inner side wall through hole 84a in the longitudinal direction (X-axis direction) of the chilling unit 100. Further, as shown in FIG. 7, the heating element 80 may have an outer wall through hole 84b formed in the outer wall 83b facing the inner side wall 83a. The outer side wall 83b is a side wall facing the outside of the chilling unit 100 in the longitudinal direction (X-axis direction) of the chilling unit 100. Further, as shown in FIG. 7, the heating element 80 may have a short side wall through hole 84c formed in the short side wall 83c located between the inner side wall 83a and the outer wall 83b. The inner side wall through hole 84a, the outer wall through hole 84b, the short side wall through hole 84c, and the panel through hole 51h may be formed in a rugged shape (armor window shape) so that water such as rain does not enter from the outside to the inside. .. Air sucked into the chilling unit 100 by the fan 5 passes through the inner side wall through hole 84a, the outer wall through hole 84b, the short side wall through hole 84c, and the panel through hole 51h. The inner side wall 83a, the outer wall 83b, and the short side wall 83c are the side walls of the heating element 80, and the inner side wall through hole 84a, the outer wall through hole 84b, and the short side wall through hole 84c are through holes of the heating element 80. ..

Further, the heating element 80 may be formed with a cable intake port 85 for inserting a cable (not shown) into the heating element 80. The cable intake port 85 is formed on the lower surface wall 83d located on the lower surface side of the heating element 80. The cable is laid under the heating element 80. Since the cable intake port 85 is formed on the lower side of the heating element 80, it is difficult for water such as rain to enter. Further, even if dew condensation occurs inside the heating element 80, the dew condensation water falls below the heating element 80 via the cable intake port 85.

FIG. 8 is a conceptual diagram showing a heat exhaust path of the heating element 80 in the chilling unit 100 according to the first embodiment. First, the exhaust heat path P1 will be described. In the heat exhaust path P1, heat is transferred from the heating element 80 to the support column 70, and heat is transferred from the support column 70 to the side panel 51. After that, in the exhaust heat path P1, the side panel 51 comes into contact with the air flowing inside the air heat exchanger 1, so that heat is transferred to the air, and along with the air flow, the outside of the chilling unit 100 is transmitted from the air outlet 14. Heat is discharged to.

Next, the exhaust heat path P2 will be described. The heat exhaust path P2 is used when an air passage hole such as a short side wall through hole 84c is formed in the heating element 80. In the heat exhaust path P2, the air inside the heating element 80 having heat is discharged to the outside of the heating element 80 through the short side wall through hole 84c of the heating element 80 or the like. After that, the air discharged to the outside of the heating element 80 is sucked into the air heat exchanger 1 by the drive of the fan 5, and is discharged to the outside of the chilling unit 100 from the air outlet 14.

Finally, the exhaust heat path P3 will be described. The heat exhaust path P3 is used when an air passage hole such as an inner side wall through hole 84a or an outer wall through hole 84b is formed in the heating element 80, and further, a panel through hole 51h is formed. In the heat exhaust path P3, the air inside the heating element 80 having heat is discharged to the outside of the heating element 80 through the inner side wall through hole 84a and the outer wall through hole 84b of the heating element 80. After that, the discharged air is driven by the fan 5, passes through the panel through hole 51h formed in the side panel 51, and is discharged to the outside of the chilling unit 100 from the air outlet 14.

FIG. 9 is a schematic view of the end portion of the chilling unit 100A of the modified example at the AA line cross-sectional position shown in FIG. The chilling unit 100A has a modified heating element 80. The heating element 80A of the modified example is different from the heating element 80 in that it has a convex portion 86. The convex portion 86 is a portion of the heating element 80 that protrudes in the longitudinal direction (X-axis direction) of the chilling unit 100A. The wall surface of the convex portion 86 facing the side surface panel 51 projects toward the side surface panel 51.

Further, the chilling unit 100A has a modified side panel 151. The side panel 151 differs from the side panel 51 in that it has a recess 51d. The recess 51d is a portion of the side panel 151 that is recessed in the longitudinal direction (X-axis direction) of the chilling unit 100A. That is, the recess 51d of the side panel 151 is a portion recessed on the internal space side of the chilling unit 100A. The concave portion 51d of the side panel 151 is a portion facing the convex portion 86 in the longitudinal direction (X-axis direction) of the chilling unit 100A. When the heating element 80A is attached to the support column 70, the convex portion 86 is housed inside the concave portion 51d and comes into contact with the concave portion 51d.

FIG. 10 is a conceptual diagram showing a heat exhaust path of the heating element 80A in the chilling unit 100A shown in FIG. The chilling unit 100A has a heat exhaust path P1, a heat exhaust path P2, a heat exhaust path P3, or a heat generation path P4. Regarding the exhaust heat path P1, the exhaust heat path P2, and the exhaust heat path P3, the heat of the heating element 80A is discharged through the above-mentioned path. In the heat generation path P4, the heating element 80A and the side panel 151 exchange heat via the convex portion 86 and the concave portion 51d. After that, when the side panel 151 comes into contact with the air flowing inside the air heat exchanger 1, heat is transferred to the air, and the heat is discharged from the air outlet 14 to the outside of the chilling unit 100 along with the air flow. ..

[Operation of chilling unit 100]
The chilling unit 100 exchanges heat between the air and the refrigerant in the air heat exchanger 1 by passing external air through the air heat exchanger 1 by the fan 5, and discharges the air after the heat exchange from above. In the chilling unit 100, the air heat exchanger 1 functions as a condenser and the heat exchanger 3 functions as an evaporator by switching the flow path switching device 33, and the air heat exchanger 1 is an evaporator and a heat exchanger 3 Can be switched to heating operation, which functions as a condenser. In the cooling operation, the heat transfer fluid cooled by the heat exchanger 3 is generated, and for example, this cooled heat transfer fluid is supplied to the load side unit (not shown) to cool the air on the load side (indoor side). Then, cool the room. Further, in the heating operation, the heat transfer fluid warmed by the heat exchanger 3 is generated, and for example, the warmed heat transfer fluid is supplied to the load side unit (not shown) to supply the load side (indoor side) air. Heat and heat the room.

[Action and effect of chilling unit 100]
The heating element 80 of the chilling unit 100 is arranged on the flow of air sucked into the air heat exchanger 1 by driving the fan 5, and is arranged on the end surface 20A side of the chilling unit 100 in the longitudinal direction (X-axis direction). ing. Therefore, in the chilling unit 100, the fan 5 used for forming a flow for passing air through the air heat exchanger 1 can also serve as a cooling fan for cooling the heating element 80. As a result, the chilling unit 100 does not need to provide a space for installing the cooling fan inside the machine room unit 4. Further, since the chilling unit 100 does not require a space for installing a cooling fan inside the machine room unit 4, the machine room unit 4 is downsized in order to secure a working space for workers outside the chilling unit 100. can do. Alternatively, since the chilling unit 100 does not require a space for installing the cooling fan inside the machine room unit 4, the internal space of the machine room unit 4 can be provided with a margin. Therefore, the chilling unit 100 can improve the degree of freedom in arranging each device constituting the refrigerant circuit and the degree of freedom in arranging the piping.

Further, the heating element 80 is arranged on the air heat exchanger 1 side with respect to the machine room unit 4. Since the strength of the suction air of the fan 5 on the air heat exchanger 1 side with respect to the machine room unit 4 is stronger than that on the machine room unit 4 side, the heating element 80 generates more heat than the machine room unit 4 side. The cooling effect of the body 80 is improved. Further, the heating element 80 is a control box or an active filter as described above, and an operator may perform work on the control box or the active filter. Since the heating element 80 is arranged on the air heat exchanger 1 side located above the chilling unit 100 with respect to the machine room unit 4 located below the chilling unit 100, the operator needs to squat down during work. There is no. In this way, the chilling unit 100 makes it easier for the operator to work on the heating element 80. Therefore, the chilling unit 100 is easier to maintain by the operator than the case where the heating element 80 is arranged in the machine room unit 4.

Further, the heating element 80 is arranged so as to face the side panel 51. Since the strength of the suction air of the fan 5 is stronger than the position facing the machine room unit 4 at the position facing the side panel 51, the heating element 80 is moved to the machine room. The cooling effect of the heating element 80 is improved as compared with the arrangement on the unit 4 side. Since the heating element 80 is arranged at a position facing the side panel 51 rather than at a position facing the machine room unit 4, it is not necessary to squat down, so that the operator can easily work on the heating element 80. Therefore, the chilling unit 100 is easier to maintain by the operator than the case where the heating element 80 is arranged in the machine room unit 4.

Further, the heating element 80 has a side wall formed with at least one through hole for exhaust heat. Therefore, the chilling unit 100 sucks the heat of the heating element 80 into the chilling unit 100 through the through holes of the inner side wall through hole 84a, the outer wall through hole 84b, or the short side wall through hole 84c by driving the fan 5. It can be discharged to the outside from the air outlet 14.

Further, the side panel 51 forms a panel through hole 51h formed so as to face the inner side wall through hole 84a formed in the inner side wall 83a of the heating element 80. Therefore, the chilling unit 100 can pass the panel through hole 51h formed in the side panel 51 by driving the fan 5, and discharge the heat of the heating element 80 from the air outlet 14 to the outside of the chilling unit 100. it can.

Further, the heating element 80 is fixed to the support column 70. Therefore, the chilling unit 100 can secure the strength to support the heating element 80.

Further, the heating element 80 is attached so as to straddle the two support columns 70. Therefore, the chilling unit 100 can further secure the strength to support the heating element 80. For example, a heating element 80 such as a control box becomes large and heavy when it includes a pump or the like. Therefore, it is desirable that the heating element 80 is fixed to the two support columns 70.

Further, in the heating element 80, the width WA1 in the left-right direction of the heating element 80 becomes equal to the distance LA1 between the outer walls 71 of the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100. It is formed like this. Since the width WA1 in the left-right direction of the heating element 80 is formed so as to be equal to the distance LA1 between the walls 71, the heating element 80 can be fixed to the support column 70. Further, since the width WA1 of the heating element 80 is formed so as to be equal to the distance LA1 between the walls 71, the chilling unit 100 is formed between the pair of air heat exchangers 1 arranged in a V shape. The space where heat exchange is not performed can be effectively used for cooling the heating element 80. Further, since the width WA1 in the left-right direction of the heating element 80 is formed to be equal to the distance LA1 between the walls 71, the end face side in the longitudinal direction of the air heat exchanger 1 is not covered more than necessary. , The heat exchange efficiency of the air heat exchanger 1 is not significantly reduced.

Further, the heating element 80A has a convex portion 86 projecting toward the side panel 151, the side panel 151 has a concave portion 51d in which the convex portion 86 is housed, and the convex portion 86 and the concave portion 51d in the chilling unit 100A. And abut. The chilling unit 100A discharges the heat generated by the heating element 80A to the outside together with the air discharged from the chilling unit 100A by the fan 5 via the side panel 151 when the convex portion 86 and the concave portion 51d come into contact with each other. Can be done. Further, in the chilling unit 100A, the flow of air flowing through the heating element 80A is rectified because the heating element 80A has the convex portion 86. Therefore, in the chilling unit 100A, the heating element 80A is appropriately exposed to the wind, so that the need for providing the heat sink 82 on the heating element 80A is reduced.

Further, the chilling unit 100 is formed in a Y shape by the air heat exchanger 1 and the machine room unit 4 when viewed in the longitudinal direction (X-axis direction). Therefore, when a plurality of chilling units 100 are arranged in parallel, an area at the feet of the operator can be secured, and maintainability by the operator can be improved. For example, since the chilling unit 100 can secure an area under the feet of the operator, the operator removes the screws attached to the panel in order to remove the panel, and installs a screw box for storing the removed screws. You can put it at your feet.

Further, the heating element 80 is a control box having an inverter 81 for controlling the compressor 31 and the like. The heating element 80, which is a control box, is arranged outside the machine room unit 4, and the suction air of the fan 5 is used for exhausting heat of the heating element 80, which is a control box, so that the cooling fan is inside the machine room unit 4. It is not necessary to provide the control box, and the maintainability of the control box by the operator is improved. The heating element 80 is an active filter. Similarly, the heating element 80, which is an active filter, is arranged outside the machine room unit 4, and the suction air of the fan 5 is used for exhausting heat, so that it is not necessary to provide a cooling fan inside the machine room unit 4. In addition, the maintainability of the active filter of the operator is improved.

Embodiment 2.
[Structure of chilling unit 100B]
FIG. 11 is a front view of the chilling unit 100B according to the second embodiment on the end face 20A side in the longitudinal direction. FIG. 12 is a schematic view of the end portion of the chilling unit 100B at the BB line cross-sectional position shown in FIG. FIG. 13 is a conceptual diagram showing a heat exhaust path of the heating element 80B in the chilling unit 100B according to the second embodiment. The chilling unit 100B according to the second embodiment will be described with reference to FIGS. 11 to 13. The parts having the same configuration as the chilling unit 100 of FIGS. 1 to 10 are designated by the same reference numerals, and the description thereof will be omitted. The chilling unit 100B according to the second embodiment is different from the chilling unit 100 according to the first embodiment in that the structure of the heating element 80B is different from the structure of the heating element 80. In the following description of the chilling unit 100B, the differences between the heating element 80B and the heating element 80 will be mainly described, and the illustration and description of the configurations other than the differences will be omitted.

As shown in FIGS. 7 and 12, the heating element 80B is formed so that the length of the chilling unit 100B in the lateral direction (Y-axis direction) is larger than that of the heating element 80. Specifically, as shown in FIGS. 12 and 13, the width WB1 of the heating element 80 in the left-right direction (Y-axis direction) is the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100B. It is formed so as to be larger than the distance LB1 between the outer walls 71 of the.

FIG. 14 is a schematic view of the end portion of the chilling unit 100C of the modified example at the BB line cross-sectional position shown in FIG. FIG. 15 is a conceptual diagram showing a heat exhaust path of the heating element 80C in the chilling unit 100C shown in FIG. The chilling unit 100C of the modified example according to the second embodiment will be described with reference to FIGS. 14 and 15. The parts having the same configuration as the chilling unit 100 and the like shown in FIGS. 1 to 13 are designated by the same reference numerals, and the description thereof will be omitted. The modified example chilling unit 100C according to the second embodiment is different from the modified example chilling unit 100A according to the first embodiment in that the structure of the heating element 80C is different from the structure of the heating element 80A. In the following description of the chilling unit 100C, the differences between the heating element 80C and the heating element 80A will be mainly described, and the illustration and description of the configurations other than the differences will be omitted.

As shown in FIGS. 9 and 14, the heating element 80C is formed so that the length of the chilling unit 100C in the lateral direction (Y-axis direction) is larger than that of the heating element 80A. Specifically, as shown in FIGS. 14 and 15, the width WB1 of the heating element 80C in the left-right direction (Y-axis direction) is the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100C. It is formed so as to be larger than the distance LB1 between the outer walls 71 of the.

[Action and effect of chilling unit 100B and chilling unit 100C]
The heating element 80B has a width WB1 in the left-right direction of the heating element 80B larger than the distance LB1 between the outer walls 71 of the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100B. Is formed in. Similarly, in the heating element 80C, the width WB1 in the left-right direction of the heating element 80C is larger than the distance LB1 between the outer walls 71 of the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100C. It is formed to be large. Since the width WB1 of the heating element 80B or the heating element 80C in the left-right direction is formed larger than the distance LB1 between the walls 71, the heating element 80B or the heating element 80C can be fixed to the support column 70. Further, the width WB1 of the heating element 80B or the heating element 80C is formed to be larger than the distance LB1 between the walls 71, so that the internal volume of the width WB1 of the heating element 80B or the heating element 80C is larger than that of the heating element 80. can do. As a result, when the heating element 80B and the heating element 80C are control boxes, for example, a pump or the like can be included inside, and the functions inside the control box can be enhanced.

Embodiment 3.
[Configuration of chilling unit 100D]
FIG. 16 is a front view of the chilling unit 100D according to the third embodiment on the end face 20A side in the longitudinal direction. FIG. 17 is a schematic view of the end portion of the chilling unit 100D at the CC line cross-sectional position shown in FIG. FIG. 18 is a conceptual diagram showing a heat exhaust path of the heating element 80 in the chilling unit 100D according to the third embodiment. The chilling unit 100D according to the third embodiment will be described with reference to FIGS. 16 to 18. The parts having the same configuration as the chilling unit 100 and the like shown in FIGS. 1 to 15 are designated by the same reference numerals, and the description thereof will be omitted. The chilling unit 100D according to the third embodiment is different from the chilling unit 100 according to the first embodiment in that an auxiliary material 90 is provided between the support column 70 and the heating element 80. In the following description of the chilling unit 100D, the configuration of the auxiliary material 90 will be mainly described, and illustration and description of configurations other than the differences will be omitted.

As shown in FIGS. 16 to 18, the chilling unit 100D has an auxiliary material 90. The auxiliary material 90 is used to increase the strength of supporting the heating element 80 attached to the support column 70. The auxiliary material 90 is arranged between the support column 70 and the heating element 80. The auxiliary material 90 is a straight pillar. However, the auxiliary material 90 is not limited to a straight pillar. The auxiliary material 90 may be formed in a curved shape or may be formed in a plate shape. The main material of the auxiliary material 90 is metal. The auxiliary material 90 is used to increase the strength of supporting the heating element 80 attached to the support column 70, and has the strength to support the heating element 80.

The auxiliary material 90 is attached across the two support columns 70 and is fixed to the support columns 70. As shown in FIG. 16, the auxiliary member 90 is attached perpendicular to the extending direction (Z-axis direction) of the support column 70. Further, two auxiliary members 90 are attached side by side with respect to the extending direction (Z-axis direction) of the support pillar 70. The number of auxiliary materials 90 attached is not limited to two. For example, if the auxiliary member 90 is a plate-shaped member, one auxiliary member 90 may be attached to the support column 70. Alternatively, when the weight of the heating element 80 is heavy, three or more auxiliary materials 90 may be used in order to strengthen the supporting strength of the heating element 80.

The heating element 80 is attached to the auxiliary material 90 attached to the support column 70. That is, the heating element 80 is attached to the support column 70 via the auxiliary member 90.

FIG. 18 is a conceptual diagram showing a heat exhaust path of the heating element 80 in the chilling unit 100D according to the third embodiment. First, the exhaust heat path P11 will be described. In the heat exhaust path P11, first, heat is transferred from the heating element 80 to the auxiliary material 90, then heat is transferred from the auxiliary material 90 to the support column 70, and then heat is transferred from the support column 70 to the side panel 51. introduce. After that, in the exhaust heat path P11, the side panel 51 comes into contact with the air flowing inside the air heat exchanger 1, so that heat is transferred to the air, and along with the air flow, the outside of the chilling unit 100D is transmitted from the air outlet 14. Heat is discharged to.

Next, the exhaust heat path P12 will be described. The heat exhaust path P12 is used when an air passage hole such as a short side wall through hole 84c is formed in the heating element 80. In the heat exhaust path P12, the air inside the heating element 80 having heat is discharged to the outside of the heating element 80 through the short side wall through hole 84c of the heating element 80 or the like. After that, the air discharged to the outside of the heating element 80 is sucked into the air heat exchanger 1 by the drive of the fan 5, and is discharged to the outside of the chilling unit 100D from the air outlet 14.

Finally, the exhaust heat path P13 will be described. The heat exhaust path P13 is used when an air passage hole such as an inner side wall through hole 84a or an outer wall through hole 84b is formed in the heating element 80, and further, a panel through hole 51h is formed. In the heat exhaust path P13, the air inside the heating element 80 having heat is discharged to the outside of the heating element 80 through the inner side wall through hole 84a and the outer wall through hole 84b of the heating element 80. After that, the discharged air is driven by the fan 5, passes through the panel through hole 51h formed in the side panel 51, and is discharged to the outside of the chilling unit 100D from the air outlet 14.

FIG. 19 is a schematic view of the end portion of the chilling unit 100E of the modified example at the CC line cross-sectional position shown in FIG. FIG. 20 is a conceptual diagram showing a heat exhaust path of the heating element 80A in the chilling unit 100E shown in FIG. A modified example of the chilling unit 100E according to the third embodiment will be described with reference to FIGS. 19 and 20. The parts having the same configuration as the chilling unit 100 and the like shown in FIGS. 1 to 18 are designated by the same reference numerals, and the description thereof will be omitted. The chilling unit 100E of the modified example according to the third embodiment is different from the chilling unit 100D according to the third embodiment in that the shape of the auxiliary material 90E is different from the shape of the auxiliary material 90 of the chilling unit 100D according to the third embodiment. .. In the following description of the chilling unit 100E, the differences between the auxiliary material 90E and the auxiliary material 90 will be mainly described, and the illustration and description of the configurations other than the differences will be omitted.

The auxiliary material 90E has a straight portion 90b and a bent portion 90c. The straight portion 90b is provided at both ends of the bent portion 90c. The straight portion 90b is provided so as to extend in the lateral direction (Y-axis direction) of the chilling unit 100E. The bent portion 90c is bent so as to project in a direction perpendicular to the extending direction of the straight portion 90b. That is, the bent portion 90c is bent in a convex shape with respect to the straight portion 90b. The bent shape of the bent portion 90c is formed so as to follow the convex shape of the convex portion 86 of the heating element 80A.

The straight portion 90b of the auxiliary material 90E is a portion attached to the support pillar 70. When the auxiliary material 90E is attached to the support column 70, the bent portion 90c of the auxiliary material 90E is inserted into the recess 51d and comes into contact with the recess 51d. Therefore, as shown in FIG. 19, when the heating element 80A is attached to the chilling unit 100E, the convex portion 86 of the heating element 80A comes into contact with the bent portion 90c of the auxiliary member 90E and passes through the bent portion 90c of the auxiliary member 90E. To connect to the side panel 151.

FIG. 20 is a conceptual diagram showing a heat exhaust path of the heating element 80A in the chilling unit 100E shown in FIG. The chilling unit 100E has an exhaust heat path P11, an exhaust heat path P12, an exhaust heat path P13, or a heat exhaust path P14. With respect to the exhaust heat path P11, the exhaust heat path P12, and the exhaust heat path P13, the heat of the heating element 80A is discharged through the above-mentioned path. In the heat generation path P14, heat is first transferred from the convex portion 86 to the auxiliary material 90E, and then heat is transferred from the auxiliary material 90E to the side panel 151. That is, in the chilling unit 100E, the convex portion 86 and the concave portion 51d exchange heat with each other via the auxiliary material 90E, so that the heating element 80A and the side panel 151 exchange heat. After that, when the side panel 151 comes into contact with the air flowing inside the air heat exchanger 1, heat is transferred to the air, and the heat is discharged from the air outlet 14 to the outside of the chilling unit 100E along with the air flow. ..

[Action and effect of chilling unit 100D and chilling unit 100E]
The chilling unit 100D is fixed across two support columns 70 and further has an auxiliary member 90 that increases the supporting strength of the heating element 80, and the heating element 80 is fixed to the auxiliary member 90. Therefore, since the chilling unit 100D has the auxiliary material 90 fixed across the two support columns 70, the strength of the support column 70 can be secured as compared with the case where the auxiliary material 90 is not used, and heat is generated. The strength to support the body 80 can be increased. Similarly, the chilling unit 100E is fixed across the two support columns 70 and further has an auxiliary member 90E that increases the supporting strength of the heating element 80A, and the heating element 80A is fixed to the auxiliary member 90E. .. By having the auxiliary material 90E fixed across the two support columns 70, the chilling unit 100E can secure the strength of the support column 70 as compared with the case where the auxiliary material 90E is not used, and the heating element 80A. The strength to support the can be increased.

Embodiment 4.
[Structure of chilling unit 100F]
FIG. 21 is a front view of the chilling unit 100F according to the fourth embodiment on the end face 20A side in the longitudinal direction. FIG. 22 is a schematic view of the end portion of the chilling unit 100F at the DD line cross-sectional position of FIG. FIG. 23 is a conceptual diagram showing a heat exhaust path of the heating element 80B in the chilling unit 100F according to the fourth embodiment. The chilling unit 100F according to the fourth embodiment will be described with reference to FIGS. 21 to 23. The parts having the same configuration as the chilling unit 100 and the like shown in FIGS. 1 to 20 are designated by the same reference numerals, and the description thereof will be omitted.

The chilling unit 100F according to the fourth embodiment is different from the chilling unit 100B according to the second embodiment in that it has an auxiliary material 90. Further, the structure of the heating element 80B is different from that of the heating element 80, which is different from the chilling unit 100D according to the third embodiment. As shown in FIGS. 22 and 23, the heating element 80B is formed so that the length of the chilling unit 100F in the lateral direction (Y-axis direction) is larger than that of the heating element 80. Specifically, as shown in FIGS. 19 and 22, the width WB1 of the heating element 80 in the left-right direction (Y-axis direction) is the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100F. It is formed so as to be larger than the distance LB1 between the outer walls 71 of the.

FIG. 24 is a schematic view of the end portion of the chilling unit 100G of the modified example at the DD line cross-sectional position shown in FIG. 21. FIG. 25 is a conceptual diagram showing a heat exhaust path of the heating element 80C in the chilling unit 100G shown in FIG. 24. A modified example of the chilling unit 100G according to the fourth embodiment will be described with reference to FIGS. 24 and 25. The parts having the same configuration as the chilling unit 100 and the like shown in FIGS. 1 to 23 are designated by the same reference numerals, and the description thereof will be omitted. The modified example chilling unit 100G according to the fourth embodiment is different from the modified example chilling unit 100C according to the second embodiment in that it has an auxiliary material 90E. Further, the modified example chilling unit 100G according to the fourth embodiment is different from the modified example chilling unit 100E according to the third embodiment in that the structure of the heating element 80C is different from the structure of the heating element 80A.

As shown in FIGS. 19 and 24, the heating element 80C is formed so that the length of the chilling unit 100G in the lateral direction (Y-axis direction) is larger than that of the heating element 80A. Specifically, as shown in FIGS. 24 and 25, the width WB1 of the heating element 80C in the left-right direction (Y-axis direction) is the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100G. It is formed so as to be larger than the distance LB1 between the outer walls 71 of the.

[Action and effect of chilling unit 100F and chilling unit 100G]
The heating element 80B has a width WB1 in the left-right direction of the heating element 80B larger than the distance LB1 between the outer walls 71 of the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100F. Is formed in. Similarly, in the heating element 80C, the width WB1 in the left-right direction of the heating element 80C is larger than the distance LB1 between the outer walls 71 of the two support columns 70 in the lateral direction (Y-axis direction) of the chilling unit 100G. It is formed to be large. Since the width WB1 of the heating element 80B or the heating element 80C in the left-right direction is formed larger than the distance LB1 between the walls 71, the heating element 80B or the heating element 80C can be fixed to the support column 70. Further, the width WB1 of the heating element 80B or the heating element 80C is formed to be larger than the distance LB1 between the walls 71, so that the internal volume of the width WB1 of the heating element 80B or the heating element 80C is larger than that of the heating element 80. can do. As a result, when the heating element 80B and the heating element 80C are control boxes, for example, a pump or the like can be included inside, and the functions inside the control box can be enhanced.

Further, the chilling unit 100F is fixed across two support columns 70, and further has an auxiliary material 90 that increases the support strength of the heating element 80, and the heating element 80 is fixed to the auxiliary material 90. Therefore, since the chilling unit 100F has the auxiliary member 90 fixed across the two support columns 70, the strength of the support column 70 can be secured as compared with the case where the auxiliary member 90 is not used, and heat is generated. The strength to support the body 80 can be increased. Similarly, the chilling unit 100G is fixed across the two support columns 70 and further has an auxiliary member 90E that increases the supporting strength of the heating element 80A, and the heating element 80A is fixed to the auxiliary member 90E. .. By having the auxiliary material 90E fixed across the two support columns 70, the chilling unit 100G can secure the strength of the support column 70 as compared with the case where the auxiliary material 90E is not used, and the heating element 80A. The strength to support the can be increased.

Embodiment 5.
FIG. 26 is a front view of the chilling unit 100H according to the fifth embodiment on the end face 20A side in the longitudinal direction. FIG. 27 is a front view of the other chilling unit 100I according to the fifth embodiment on the end face 20A side in the longitudinal direction. As described above, the chilling unit 100 is formed in a Y shape by the air heat exchanger 1 and the machine room unit 4 when viewed in the longitudinal direction (X-axis direction). However, the configuration of the chilling unit 100 is not limited to the Y-shaped configuration when viewed in the longitudinal direction (X-axis direction), and may be configured in other shapes. For example, the chilling unit 100 is formed in an X shape by the air heat exchanger 1 and the machine room unit 4 when viewed in the longitudinal direction (X-axis direction) like the chilling unit 100H shown in FIG. 26. You may. Further, the chilling unit 100 is formed in a V shape by the air heat exchanger 1 and the machine room unit 4 when viewed in the longitudinal direction (X-axis direction) like the chilling unit 100I shown in FIG. 27. You may.

[Action and effect of chilling unit 100H and chilling unit 100I]
Since the chilling unit 100H and the chilling unit 100I have a heating element 80 like the chilling unit 100, the same effects as those of the chilling unit 100 to the chilling unit 100G described above can be exhibited.

Embodiment 6.
[Chilling unit system 110]
FIG. 28 is a perspective view showing the chilling unit system 110 according to the sixth embodiment. The parts having the same configuration as the chilling unit 100 and the like shown in FIGS. 1 to 27 are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 28, the chilling unit system 110 has a plurality of chilling units 100. The chilling unit system 110 is configured by installing a plurality of chilling units 100 in parallel in the lateral direction (Y-axis direction) of the chilling unit 100. The chilling unit system 110 is installed so that the longitudinal directions (directions of X items) of the plurality of chilling units 100 are parallel to each other.

[Action and effect of chilling unit system 110]
Since the chilling unit system 110 has a plurality of chilling units 100, the same effects as those of the chilling unit 100 to the chilling unit 100I described above can be exhibited.

The configuration shown in the above embodiments is an example, and can be combined with another known technique, and a part of the configuration is omitted or modified without departing from the gist of the present invention. It is also possible to do.

1 air heat exchanger, 1A air heat exchanger, 1B air heat exchanger, 1C air heat exchanger, 1D air heat exchanger, 3 heat exchanger, 4 machine room unit, 5 fan, 5A fan, 5B fan, 5C Fan, 5D fan, 6A bell mouse, 6B bell mouse, 6C bell mouse, 6D bell mouse, 7 heat transfer tube, 8 fins, 10 base, 11a upper end, 11b lower end, 14 air outlet, 17 fan guard, 20A end face , 31 compressor, 33 flow path switching device, 40 frame, 41 underframe, 42 gate pillar, 42A gate pillar, 42B gate pillar, 42C gate pillar, 42D gate pillar, 43 intermediate pillar, 43A intermediate pillar, 43B intermediate pillar, 43C intermediate pillar, 43D Intermediate pillar, 44 upper beam, 45 side wall, 45a first side wall, 45b second side wall, 50 side panel, 51 side panel, 51a upper edge, 51b lower edge, 51d recess, 51h panel through hole, 55 drain pan, 60 Top frame, 70 support pillar, 71 wall, 80 heat exchanger, 80A heat exchanger, 80B heat exchanger, 80C heat exchanger, 81 inverter, 82 heat exchanger, 83a inner side wall, 83b outer wall, 83c short side wall, 83d lower wall, 84a inside Wall through hole, 84b outer wall through hole, 84c short side wall through hole, 85 cable intake, 86 convex part, 90 auxiliary material, 90E auxiliary material, 90b straight part, 90c bent part, 100 chilling unit, 100A chilling unit, 100B Chilling unit, 100C chilling unit, 100D chilling unit, 100E chilling unit, 100F chilling unit, 100G chilling unit, 100H chilling unit, 100I chilling unit, 110 chilling unit system, 151 side panel.

Claims

A plurality of air heat exchangers that exchange heat between the refrigerant and air, a fan arranged above the plurality of air heat exchangers, and the plurality of air heat exchanges formed in a long box shape. A chilling unit that includes a machine room unit on which the vessel is placed.
It is formed in a box shape, and is provided with a heating element that generates heat when the chilling unit is operated by the electric circuit components housed therein and necessary for the operation of the chilling unit.
The heating element is
A chilling unit arranged on a flow of air sucked into the plurality of air heat exchangers by driving the fan, and arranged on the end face side in the longitudinal direction of the chilling unit.
The heating element is
The chilling unit according to claim 1, which is arranged on the side of the plurality of air heat exchangers with respect to the machine room unit.
The heating element is
The chilling unit according to claim 1 or 2, which has a side wall formed with at least one through hole for exhaust heat.
The plurality of air heat exchangers
It has a pair of air heat exchangers arranged opposite each other along the lateral direction of the machine room unit.
The pair of air heat exchangers
The distance between the upper ends on the side far from the machine room unit is inclined so as to be larger than the distance between the lower ends on the side closer to the machine room unit, and the pair of air heat exchangers are arranged. It has side panels arranged at the longitudinal ends of the chilling unit so as to close the space between them.
The heating element is
The chilling unit according to any one of claims 1 to 3, which is arranged so as to face the side panel.
The plurality of air heat exchangers
It has a pair of air heat exchangers arranged opposite each other along the lateral direction of the machine room unit.
The pair of air heat exchangers
The distance between the upper ends on the side far from the machine room unit is inclined so as to be larger than the distance between the lower ends on the side closer to the machine room unit, and the pair of air heat exchangers are arranged. It has side panels arranged at the longitudinal ends of the chilling unit so as to close the space between them.
The side panel
The chilling unit according to claim 3, wherein a panel through hole formed so as to face the through hole on the side wall is formed.
The heating element is
It has a convex portion protruding toward the side panel and has a convex portion.
The side panel has a recess in which the protrusion is housed.
The chilling unit according to claim 4 or 5, wherein the convex portion and the concave portion come into contact with each other.
A top frame arranged above the plurality of air heat exchangers and to which the fan is mounted,
A support pillar for fixing the machine room unit and the top frame,
Have,
The heating element is
The chilling unit according to any one of claims 1 to 6, which is fixed to the support pillar.
The support pillar
Two of each of the chilling units are provided at both ends in the longitudinal direction.
The heating element is
The chilling unit according to claim 7, which is attached so as to straddle the two support columns.
The heating element is
The chilling according to claim 7 or 8, wherein the width in the left-right direction of the heating element is formed to be equal to the distance between the outer walls of the two support columns in the lateral direction of the chilling unit. unit.
The heating element is
The seventh or eighth aspect of the present invention, wherein the width of the heating element in the left-right direction is formed so as to be larger than the distance between the outer walls of the two support columns in the lateral direction of the chilling unit. Chilling unit.
It further has an auxiliary material that is fixed across the two support columns and increases the support strength of the heating element.
The heating element is
The chilling unit according to any one of claims 7 to 10, which is fixed to the auxiliary material.
The chilling unit according to any one of claims 1 to 11, which is formed in a Y shape by the plurality of air heat exchangers and the machine room unit when viewed in the longitudinal direction.
The heating element is
The chilling unit according to any one of claims 1 to 12, which is a control box including an inverter for controlling a compressor housed in the machine room unit.
The heating element is
The chilling unit according to any one of claims 1 to 12, which is an active filter.
A chilling unit system configured by installing a plurality of chilling units according to any one of claims 1 to 14.