Outdoor unit of an air conditioning system

Abstract

In an air conditioning system in which the outdoor unit is composed of multiple units, the burden of connecting the refrigerant piping of multiple units is reduced by making it possible to transport the multiple units appropriately. [Solution] The outdoor unit of the air conditioner comprises a group of components including a power supply unit, a heat exchanger, a blower, and a compressor; a first unit including a first housing that houses the power supply unit and the compressor; and a second unit including a second housing that houses the heat exchanger and the blower, and which can be coupled to and separated from the first unit. The first unit and the second unit each include opposing surfaces that face each other when coupled, and a pair of gripping parts. One of the pair of gripping parts included in one of the first unit and the second unit has a recessed portion that is positioned on the opposing surface and recesses inward toward the housing of the other unit.

Description

Technical Field

[0001] The present disclosure relates to an outdoor unit of an air conditioner.

Background Art

[0002] As described in Patent Document 1, in an air conditioner including an indoor unit and an outdoor unit that exchanges heat between refrigerant sent from the indoor unit and outside air, there is known an outdoor unit configured by combining a plurality of units.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the air conditioner described in Patent Document 1, when combining the units during installation of the outdoor unit, it is necessary to connect the refrigerant pipes included in each unit. At this time, since the operator needs to transport each unit, which is a heavy object, to a predetermined position and position each unit, if each unit cannot be properly transported, the work burden increases.

[0005] Therefore, an object of the present disclosure is to reduce the work burden of connecting the refrigerant pipes of a plurality of units by enabling proper transportation of the plurality of units in an air conditioner in which an outdoor unit is configured by combining a plurality of units.

Means for Solving the Problems

[0006] To solve the above problems, an outdoor unit of an air conditioner according to one aspect of the present disclosure comprises a group of components including a power supply device supplied with power from the outside, a heat exchanger for exchanging heat between air and a refrigerant, a blower for blowing air toward the heat exchanger, and a compressor for compressing the refrigerant; a first unit including a first housing that houses the power supply device and the compressor from the group of components; and a second unit including a second housing that houses the heat exchanger and the blower from the group of components, and which can be coupled to and separated from the first unit, wherein the first unit and the second unit each include opposing surfaces that face each other when coupled and a pair of gripping parts, and one of the pair of gripping parts included in one of the first unit and the second unit has a recessed portion that is arranged on the opposing surface of the one unit and recessed toward the inside of the housing of the one unit. [Effects of the Invention]

[0007] According to one aspect of this disclosure, in an air conditioning system in which an outdoor unit is composed of a combination of multiple units, the burden of connecting the refrigerant piping of the multiple units can be reduced by making the multiple units appropriately transportable. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a block diagram showing the configuration of an air conditioning system according to an embodiment. [Figure 2] Figure 2 shows the outdoor unit with the first and second units from Figure 1 combined. [Figure 3] Figure 3 is an external perspective view of the first unit shown in Figure 1. [Figure 4] Figure 4 is an external perspective view of the second unit in Figure 1. [Modes for carrying out the invention]

[0009] The embodiments will be described below with reference to the drawings. (Embodiment) Figure 1 is a block diagram showing the configuration of the air conditioning system 1 according to an embodiment. Figure 2 is a diagram showing the outdoor unit 3 in a state in which the first unit 4 and the second unit 5 of Figure 1 are combined. As shown in Figure 1, the air conditioning system 1 includes an indoor unit 2, an outdoor unit 3, and a plurality of refrigerant pipes RP1 to RP4 connecting the indoor unit 2 and the outdoor unit 3. The air conditioning system 1 is driven (operated) in one of a plurality of modes, including cooling mode, heating mode, and dehumidification mode. The outdoor unit 3 comprises a first unit 4 and a second unit 5 as a plurality of units.

[0010] As shown in Figure 2 and in Figures 3 and 4 described later, the first unit 4 and the second unit 5 are configured to be connectable and detachable from each other. The outdoor unit 3 is driven, for example, when the first unit 4 and the second unit 5 are connected (hereinafter also referred to simply as the connected state). By making the first unit 4 and the second unit 5 detachable, the air conditioning system 1 can arrange the outdoor unit 3 well even if the outdoor unit 3 becomes larger or heavier, or if there are space constraints.

[0011] The indoor unit 2 comprises an indoor heat exchanger 20 that exchanges heat between the refrigerant and indoor air, and a blower 21 that blows indoor air toward the heat exchanger 20. The blower 21 has a fan 23 and a fan motor M1 that rotates the fan 23. The indoor unit 2 may further include a temperature sensor S for detecting the indoor temperature, and an operating unit 22 for the user to perform operations such as turning the air conditioner 1 on and off or switching operating modes.

[0012] The outdoor unit 3 comprises an outdoor heat exchanger 30 that exchanges heat between the refrigerant and the outside air, a compressor 31 that compresses the refrigerant, a pressure reducing device 32 that reduces the pressure of the refrigerant, and a blower 33 that blows outside air toward the heat exchanger 30. The pressure reducing device 32 includes, for example, a pressure reducing valve. The blower 33 has a fan 38 and a fan motor M2 that rotates the fan 38. The refrigerant circulates through a plurality of refrigerant pipes RP1 to RP4 between the heat exchanger 20, the heat exchanger 30, the compressor 31, and the pressure reducing device 32.

[0013] The outdoor unit 3 further includes an expansion valve V0 for expanding the refrigerant and a switching valve V1 for switching the direction of refrigerant flow. The switching valve V1 is, for example, a four-way valve. The outdoor unit 3 is further equipped with various valve devices and strainers as appropriate. For example, refrigerant piping RP1 connects the heat exchanger 20 and the pressure reducing device 32. Refrigerant piping RP2 connects the pressure reducing device 32 and the heat exchanger 30. Refrigerant piping RP3 connects the heat exchanger 20 and the switching valve V1. Refrigerant piping RP4 connects the heat exchanger 30 and the switching valve V1.

[0014] Some of the piping included in the refrigerant piping RP1 to RP4 is connected between the first unit 4 and the second unit 5 by multiple couplers. For example, the first unit 4 includes couplers CP3 and CP4, and the second unit 5 includes couplers CP1 and CP2.

[0015] The piping that makes up refrigerant piping RP2 is connected by couplers CP1 and CP3, and the piping that makes up refrigerant piping RP4 is connected by couplers CP2 and CP4. For example, couplers CP1 and CP3 and couplers CP2 and CP4 are connected in the vertical direction.

[0016] Furthermore, the outdoor unit 3 of this embodiment includes a predetermined group of components 35. The group of components 35 includes a compressor 31, a heat exchanger 30, and a blower 33. The first unit 4 includes a first housing 40a that houses the compressor 31 from the group of components 35 and a power supply unit 34, which will be described later.

[0017] The second unit 5 includes a second housing 50a that houses the heat exchanger 30 and the blower 33 from the component group 35. The first housing 40a and the second housing 50a may house the remaining components of the component group 35. For example, the first housing 40a houses the pressure reducing device 32, the expansion valve V0, and the switching valve V1.

[0018] Furthermore, the internal volume of the heavier unit among the first unit 4 and the second unit 5 may be smaller than the internal volume of the lighter unit. In this embodiment, the first unit 4 is heavier and has a smaller internal volume than the second unit 5.

[0019] The component group 35 further includes a plurality of electrical components E. The electrical components E housed in the second housing 50a include a fan motor M2. The electrical components E housed in the first housing 40a include a compressor 31. The first unit 4 may include a power line PL to which power is supplied from the outside. In this case, the electrical components E housed in the first housing 40a may include a power supply device (switchboard) 34 that is supplied with power from the outside and supplies power to each of the electrical components E housed in the first housing 40a and the second housing 50a. In the outdoor unit 3, the power supplied from the outside to the power line PL is supplied to each electrical component E via the power supply device 34. The power supply device 34 may have a control unit that controls each electrical component E.

[0020] FIG. 3 is an external perspective view of the first unit 4 of FIG. 1. In FIG. 3, the inside of the first housing 40a is partially shown. FIG. 4 is an external perspective view of the second unit 5 of FIG. 1. As shown in FIGS. 3 and 4, the first unit 4 and the second unit 5 include a coupling portion that is detachably coupled to each other. As an example of this coupling portion, the first unit 4 and the second unit 5 include lower coupling portions 40b and 50b and upper coupling portions 40c and 50c that are spaced apart in the vertical direction. The structure of the coupling portion is not limited.

[0021] The first unit 4 also includes an opposing surface F2 and a pair of gripping portions 40p. The second unit 5 includes an opposing surface F1 and a pair of gripping portions 50p. The opposing surface F2 is included in a plurality of surfaces of the first housing 40a, and the opposing surface F1 is included in a plurality of surfaces of the second housing 50a. The opposing surfaces F1 and F2 face each other in the coupled state.

[0022] The pair of gripping portions 40p and 50p are disposed on the outer surfaces of the housings 40a and 50a and are gripped by an operator (hereinafter also simply referred to as an operator) who installs the outdoor unit 3. In order to make it easier for the operator to grip the units 4 and 5, the pair of gripping portions 40p and 50p are preferably disposed in a region that overlaps a single virtual straight line that crosses the units 4 and 5 when viewed from the vertical direction, for example, on the outer surfaces of the housings 40a and 50a.

[0023] One of the pair of gripping portions included in either the first unit 4 or the second unit 5 has a recessed portion that is positioned on the opposing surface and recesses inward toward the housing of the other unit. For example, in this embodiment, one of the units is the second unit 5, and one of the pair of gripping portions 50p has a recessed portion 50q that is positioned on the opposing surface F1 and recesses inward toward the interior of the second housing 50a.

[0024] Specifically, the pair of gripping parts 50p have gripping parts 50pa and 50pb. The gripping part 50pb is located on the side opposite to the opposing surface F1 of the second housing 50a (see Figure 2). The recessed portion 50q of the gripping part 50pa has an internal space Q in which multiple fingers of the operator can be inserted. The shape of the internal space Q can be set as appropriate.

[0025] Of the surface of the gripping portion 50pa that defines the internal space Q of the recessed portion 50q, at least the upper surface area P has a shape that allows an operator to grip and support the second unit 5 with their fingers. For example, the surface area P may be inclined upward or downward from the inside to the outside of the second housing 50a, or it may extend horizontally. The shape of the gripping portion 50pb may be the same as or different from that of the gripping portion 50pa.

[0026] Furthermore, the recessed portion 50q may be a separate component from the second housing 50a, which is provided with the recessed portion 50q, of the first housing 40a and the second housing 50a. In this case, the recessed portion 50q may be attached to the second housing 50a by fastening members or the like.

[0027] As an example, of the first unit 4 and the second unit 5, the other unit includes multiple sides. The opposing surface is one of the sides included in the multiple sides. In this embodiment, the opposing surface F2 is one of the multiple sides F2 to F4 included in the other unit, the first unit 4. Furthermore, the pair of gripping portions 40p included in the first unit 4 are arranged on a side different from the one side (i.e., the opposing surface F2) among the multiple sides F2 to F4.

[0028] Specifically, the pair of gripping parts 40p have gripping parts 40pa and 40pb. The gripping parts 40pa and 40pb are located on two sides F3 and F4 of the first housing 40a that are continuous with the opposing surface F2. Because the gripping parts 40pa and 40pb are located on sides F3 and F4, even when combining the first unit 4 with the second unit 5 while facing the opposing surfaces F1 and F2, the operator can stably grip the first unit 4 with the gripping parts 40pa and 40pb. The shapes of the gripping parts 40pa and 40pb may be the same or different.

[0029] The gripping portion 50pa may have a portion that protrudes slightly outward from the opposing surface F1, within the range that fits within the gap between the first unit 4 and the second unit that is permissible in the joined state. Also, if one of the housings is the second housing 50a, the blower 33 includes a fan 38 that rotates around a predetermined rotation axis X, and the opposing surface F1 of the second housing 50a may extend along the axial direction of the rotation axis X when viewed from above or below.

[0030] Next, the operation of the air conditioning system 1 will be described. In heating mode, the refrigerant is vaporized in the heat exchanger 30 through heat exchange with the outside air. The vaporized refrigerant is sent to the compressor 31 via the refrigerant piping RP4, expansion valve V0, and switching valve V1. The compressor 31 compresses and discharges the vaporized refrigerant. The refrigerant that has passed through the compressor 31 is sent to the heat exchanger 20 via the switching valve V1 and refrigerant piping RP3. The heat exchanger 20 exchanges heat between the vaporized refrigerant and the indoor air. The blower 21 blows air that has been heated by heat exchange with the refrigerant in the heat exchanger 20 into the room. As a result of this heat exchange, the refrigerant liquefies. The liquefied refrigerant is sent to the pressure reducing device 32 via the refrigerant piping RP1. The refrigerant is reduced in pressure by the pressure reducing device 32 and becomes a two-phase gas-liquid state. The refrigerant that has passed through the pressure reducing device 32 returns to the heat exchanger 30 via the refrigerant piping RP2.

[0031] In cooling or dehumidifying mode, the refrigerant is liquefied in the heat exchanger 30 through heat exchange with the outside air. The liquefied refrigerant is sent to the pressure reducing device 32 via the refrigerant piping RP2. The pressure reducing device 32 reduces the pressure of the liquefied refrigerant. The refrigerant that has passed through the pressure reducing device 32 is sent to the heat exchanger 20 via the refrigerant piping RP1. The heat exchanger 20 exchanges heat between the liquefied refrigerant and the indoor air. The blower 21 blows the air that has been cooled by heat exchange with the refrigerant in the heat exchanger 20 into the room. As a result of this heat exchange, the refrigerant vaporizes. The vaporized refrigerant is sent to the compressor 31 via the refrigerant piping RP3 and the switching valve V1. The compressor 31 compresses the vaporized refrigerant. The refrigerant that has passed through the compressor 31 returns to the heat exchanger 30 via the switching valve V1, the expansion valve V0, and the refrigerant piping RP4.

[0032] As described above, the outdoor unit 3 comprises a group of components 35, a first unit 4 including a first housing 40a housing a power supply unit 34 and a compressor 31 from the group of components 35, and a second unit 5 including a second housing 50a housing a heat exchanger 30 and a blower 33 from the group of components 35, and which can be connected to and separated from the first unit 4.

[0033] The first unit 4 and the second unit 5 each include opposing surfaces F1 and F2 that face each other when connected, and a pair of gripping portions 40p and 50p, respectively. One of the gripping portions 40p, 50p included in one of the units (the second unit 5 in this embodiment) of the first unit 4 and the second unit 5 has a recessed portion 50q that is positioned on the opposing surface F1 and recessed toward the inside of the housing of the other unit.

[0034] With the outdoor unit 3 configured as described above, since both the first unit 4 and the second unit 5 include a pair of gripping parts 40p and 50p, when installing the outdoor unit 3, the worker can appropriately transport the two units 4 and 5 one by one by grasping the pair of gripping parts 40p and 50p of each unit 4 and 5, without having to, for example, hold the bottom of each unit 4 and 5. This makes it easy to combine the two units 4 and 5. In addition, since one of the gripping parts 50p included in one unit has a recessed portion 50q, the opposing surfaces F1 can be maintained as flat surfaces. Therefore, interference between the gripping part 50p of one unit and the other unit can be avoided, and the refrigerant piping of the two units 4 and 5 can be efficiently connected. Thus, in an air conditioning system 1 in which the outdoor unit 3 is composed of a combination of multiple units 4 and 5, the burden of connecting the refrigerant piping of multiple units 4 and 5 can be reduced by making it possible to appropriately transport multiple units 4 and 5.

[0035] As another example, of the first unit 4 and the second unit 5, the other unit (the first unit 4 in this embodiment) includes a plurality of sides F2 to F4, the opposing surface F2 is one of the sides included in the plurality of sides F2 to F4, and the pair of gripping portions 40p of the other unit are arranged on sides F3 and F4 that are different from the aforementioned one of the plurality of sides F2 to F4.

[0036] According to the above configuration, the pair of gripping portions 40p of the other unit are positioned on sides F3 and F4, which are different from the opposing surface F2. Therefore, when the two units 4 and 5 are combined, interference between the gripping portions 40p of the other unit and the other unit can be avoided.

[0037] As another example, the recessed portion 50q is a separate part from the housing on which the recessed portion 50q is provided (in this embodiment, the second housing 50a) of the first housing 40a and the second housing 50a. With this configuration, the recessed portion 50q can be easily changed to match the specifications of the outdoor unit 3. Therefore, the design flexibility of the outdoor unit 3 can be improved.

[0038] As another example, one of the housings is a second housing 50a, and the blower 33 includes a fan 38 that rotates around a predetermined rotation axis X, and the opposing surface F1 of the second housing 50a extends along the axial direction of the rotation axis X when viewed from above. The rotation axis X may be the rotation axis of the fan motor M2.

[0039] According to the above configuration, even when the opposing surfaces F1 are located in a direction perpendicular to the axial direction of the rotation axis X of the fan 38, when the two units 4 and 5 are combined, interference between the gripping portion of the other unit (in this embodiment, the gripping portion 40p of the first unit 4) and the other unit can be avoided.

[0040] Furthermore, in the second unit 5 of the air conditioning device 1 of this embodiment, one of the pair of gripping parts 40p, 50p, one of which gripping part 50p (50pa), is positioned on the opposing surface F1 and has a recessed portion 50q that is recessed toward the inside of the second housing 50a.

[0041] Furthermore, the unit of the air conditioning device 1 of this embodiment, which is the first unit 4, includes a plurality of sides F2 to F4, the opposing surface F2 is one of the sides included in the plurality of sides F2 to F4, and the pair of gripping parts 40p are arranged on sides F3 and F4 that are different from the aforementioned one of the plurality of sides F2 to F4.

[0042] This disclosure is not limited to the embodiments described above, and its configuration and methods may be modified, added, combined, or deleted without departing from the spirit of this disclosure.

[0043] (Note) The above description of embodiments discloses the following technologies. [Technology 1] A group of components including a power supply unit supplied with power from an external source, a heat exchanger for exchanging heat between air and a refrigerant, a blower for blowing air toward the heat exchanger, and a compressor for compressing the refrigerant, A first unit including a first housing that houses the power supply and the compressor from the aforementioned group of components, The system includes a second housing that houses the heat exchanger and the blower among the aforementioned group of components, and the second unit is capable of being connected to and separated from the first unit. The first unit and the second unit each include opposing surfaces that face each other in the joined state and a pair of gripping portions, An outdoor unit for an air conditioner, wherein one of the pair of gripping portions included in one of the first unit and the second unit has a recessed portion that is positioned on the opposing surface of the first unit and recesses inward toward the housing of the first unit.

[0044] With the outdoor unit configuration described above, since both the first and second units include a pair of gripping parts, when installing the outdoor unit, workers can properly transport the two units one by one by grasping the pair of gripping parts of each unit, without having to, for example, hold the bottom of each unit. This makes it easy to combine the two units. In addition, since one of the gripping parts included in one unit has a recessed portion, the opposing surfaces on which the recessed portion is located can be kept flat. Therefore, interference between the gripping part of one unit and the other unit can be avoided, and the refrigerant piping of the two units can be efficiently connected. Thus, in an air conditioning system in which the outdoor unit is composed of a combination of multiple units, the burden of connecting the refrigerant piping of multiple units can be reduced by making it possible to transport multiple units appropriately.

[0045] [Technology 2] Of the first unit and the second unit, the other unit includes a plurality of sides, and the opposing surface of the other unit is one of the plurality of sides, The outdoor unit of an air conditioning system according to Technical 1, wherein the pair of gripping portions of the other unit are arranged on a side different from one of the plurality of sides.

[0046] According to the above configuration, the pair of gripping parts of the other unit are positioned on a side different from the opposing surface, so that when the two units are combined, interference between the gripping parts of the other unit and the other unit can be avoided.

[0047] [Technology 3] The recessed portion is a separate component from the first housing and the second housing on which the recessed portion is provided, in the outdoor unit of an air conditioning system according to Technology 1 or 2.

[0048] With the above configuration, the recessed portion can be easily modified to suit the specifications. Therefore, the design flexibility of the outdoor unit can be improved.

[0049] [Technology 4] The aforementioned one housing is the second housing, The blower includes a fan that rotates around a predetermined axis of rotation, The outdoor unit of an air conditioning device according to any one of the technologies 1 to 3, wherein the opposing surface of the second housing extends along the axial direction of the rotation axis when viewed from above.

[0050] According to the above configuration, even when the opposing surfaces are located perpendicular to the axial direction of the fan's rotation axis, interference between the gripping portion of one unit and the other unit can be avoided when the two units are combined.

[0051] [Technology 5] An air conditioning system equipped with an outdoor unit as described in one of the technologies 1 to 4.

[0052] [Technology 6] A unit of an air conditioning system comprising: a group of components including a power supply unit supplied with power from an external source, a heat exchanger for exchanging heat between air and a refrigerant, a blower for blowing air toward the heat exchanger, and a compressor for compressing the refrigerant; a first unit including a first housing that houses the power supply unit and the compressor from the group of components; and a second unit including a second housing that houses the heat exchanger and the blower from the group of components, and which can be coupled and separated from the first unit, wherein the first unit and the second unit are opposite surfaces that face each other when coupled, and a pair of gripping parts, and the second unit is an outdoor unit comprising an outdoor unit, An air conditioning unit in which one of the pair of gripping portions has a recessed portion that is positioned on the opposing surface and recesses inward toward the second housing.

[0053] [Technology 7] A unit of an air conditioning system comprising: a group of components including a power supply unit supplied with power from an external source, a heat exchanger for exchanging heat between air and a refrigerant, a blower for blowing air toward the heat exchanger, and a compressor for compressing the refrigerant; a first unit including a first housing housing the power supply unit and the compressor from the group of components; and a second unit including a second housing housing the heat exchanger and the blower from the group of components, which is connectable to and detachable from the first unit, wherein the first unit and the second unit each include opposing surfaces that face each other when connected, and a pair of gripping parts, and one of the pair of gripping parts included in the first unit is a gripping part of an outdoor unit having a recessed portion that is positioned on the opposing surface of the first unit and recessed toward the inside of the first housing, It includes multiple sides, and the opposing surface is one of the multiple sides, The pair of gripping portions are arranged on a side different from one of the multiple sides of the air conditioning unit. [Explanation of symbols]

[0054] F1 Opposite side F2 Opposite side (side) F3,F4 side X rotation axis 1. Air conditioning system 3 Outdoor unit 4. Unit 1 5. Unit 2 30 Outdoor heat exchanger (heat exchanger) 31 Compressor 33 Blower 34 Power supply 35 component groups 38 Fans 40p,50p,50pa,50pb Grip part 40a First enclosure 50a Second enclosure 50q recessed area

Claims

1. A group of components including a power supply unit supplied with power from an external source, a heat exchanger for exchanging heat between air and a refrigerant, a blower for blowing air toward the heat exchanger, and a compressor for compressing the refrigerant, A first unit including a first housing that houses the power supply and the compressor from the aforementioned group of components, The system includes a second housing that houses the heat exchanger and the blower among the aforementioned group of components, and the second unit is capable of being connected to and separated from the first unit. The first unit and the second unit each include opposing surfaces that face each other in the joined state and a pair of gripping portions, An outdoor unit for an air conditioner, wherein one of the pair of gripping portions included in one of the first unit and the second unit has a recessed portion that is positioned on the opposing surface of the first unit and recesses inward toward the housing of the first unit.

2. Of the first unit and the second unit, the other unit includes a plurality of sides, and the opposing surface of the other unit is one of the plurality of sides, The outdoor unit of an air conditioning system according to claim 1, wherein the pair of gripping portions of the other unit are arranged on a side different from one of the plurality of sides.

3. The outdoor unit of an air conditioning system according to claim 1, wherein the recessed portion is a separate part from the first housing and the second housing on which the recessed portion is provided.

4. The aforementioned one housing is the second housing, The blower includes a fan that rotates around a predetermined axis of rotation, The outdoor unit of the air conditioning system according to claim 1, wherein the opposing surface of the second housing extends along the axial direction of the rotation axis when viewed from above.

5. An air conditioning system comprising an outdoor unit as described in any one of claims 1 to 4.

6. A unit of an air conditioning system comprising: a group of components including a power supply unit supplied with power from an external source, a heat exchanger for exchanging heat between air and a refrigerant, a blower for blowing air toward the heat exchanger, and a compressor for compressing the refrigerant; a first unit including a first housing that houses the power supply unit and the compressor from the group of components; and a second unit including a second housing that houses the heat exchanger and the blower from the group of components, and which can be coupled and separated from the first unit, wherein the first unit and the second unit are opposite surfaces that face each other when coupled, and a pair of gripping parts, and the second unit is an outdoor unit comprising an outdoor unit, An air conditioning unit in which one of the pair of gripping parts has a recessed portion that is positioned on the opposing surface and recesses inward toward the second housing.

7. A unit of an air conditioning system comprising: a group of components including a power supply unit supplied with power from an external source, a heat exchanger for exchanging heat between air and a refrigerant, a blower for blowing air toward the heat exchanger, and a compressor for compressing the refrigerant; a first unit including a first housing housing the power supply unit and the compressor from the group of components; and a second unit including a second housing housing the heat exchanger and the blower from the group of components, which is connectable to and detachable from the first unit, wherein the first unit and the second unit each include opposing surfaces that face each other when connected, and a pair of gripping parts, and one of the pair of gripping parts included in the first unit is an outdoor unit having a recessed portion that is positioned on the opposing surface of the first unit and recessed toward the inside of the first housing, It includes multiple sides, and the opposing surface is one of the multiple sides, The pair of gripping portions are arranged on a side different from one of the multiple sides of the air conditioning unit.

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