Outdoor unit

Abstract

The utility model provides an outdoor unit capable of reducing the manufacturing cost of a bottom plate. In an outdoor unit (1, 100) including a housing (10, 110) having a bottom plate (20), the bottom plate (20) can be connected to an additional bottom plate (80) extending the bottom surface of the housing (10, 110).

Description

Technical Field

[0001] The utility model relates to an outdoor unit. Background Art

[0002] Patent document 1 discloses an outdoor unit including a service panel that is low in manufacturing cost, light in weight, and easy to operate. The outdoor unit includes: a rectangular parallelepiped housing including a fan room and a machine room, and having a detachable service panel; and an electrical component box disposed on the front side of the machine room, the service panel including a first service panel and a second service panel disposed side by side on the left and right in a manner that covers the electrical component box from the front side of the housing.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2021-119322 Utility Model Content

[0006] Issues to be solved by utility models

[0007] The utility model provides an outdoor unit capable of reducing the manufacturing cost of a bottom plate.

[0008] Methods for solving problems

[0009] The outdoor unit of the present invention is characterized in that, in the outdoor unit including a casing having a bottom plate, the bottom plate can be connected to an additional bottom plate that expands the bottom surface of the casing.

[0010] In addition, this specification includes the entire contents of Japanese Patent Application No. 2022-006783 filed on January 19, 2022.

[0011] Utility Model Effect

[0012] According to the utility model, the manufacturing cost of the base plate can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a perspective view of the first outdoor unit according to this embodiment.

[0014] Figure 2 It is a three-dimensional diagram of the first base plate.

[0015] Figure 3 It is a perspective view of the second outdoor unit.

[0016] Figure 4 It is a three-dimensional diagram of the second base plate.

[0017] Figure 5 This is a three-dimensional image of the additional base plate. DETAILED DESCRIPTION

[0018] (Knowledge and insights that form the basis of the present invention, etc.)

[0019] At the time when the inventors and others thought of the present invention, there was a technology that used two panels to form the side of the shell of the upward-blowing outdoor unit. The outdoor unit includes: a shell in a rectangular shape that includes a fan room and a machine room and has a detachable service panel; and an electrical installation box arranged on the front side of the machine room, and the service panel is arranged in parallel on the left and right in a manner that covers the electrical installation box from the front side of the shell. As a result, the outdoor unit has a side panel that is low in manufacturing cost, light in weight, and easy to operate.

[0020] The housing of such an outdoor unit contains a compressor and an outdoor heat exchanger. In such an outdoor unit, by selectively setting any one of the outdoor heat exchangers having different lengths of refrigerant pipes, multiple outdoor units with different air conditioning capabilities are sometimes formed. In this case, the outdoor unit includes any one of multiple housings of different sizes that can accommodate the outdoor heat exchangers according to the size of the outdoor heat exchangers.

[0021] However, in the conventional outdoor unit, when manufacturing multiple housings of different sizes, multiple molds of the bottom plate are required to be manufactured in order to manufacture the bottom plate forming the bottom surface of each housing. Therefore, in the conventional outdoor unit, the inventor has found the problem of increased manufacturing cost, and in order to solve this problem, the content of the utility model is formed.

[0022] Therefore, the utility model provides an outdoor unit capable of reducing the manufacturing cost of a bottom plate.

[0023] The following describes the embodiments in detail with reference to the accompanying drawings. However, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of already known matters or repeated descriptions of substantially the same structures may be omitted. This is to avoid the following description from being more redundant than necessary and to facilitate understanding by those skilled in the art.

[0024] In addition, the drawings and the following description are provided for those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter described in the claims through these descriptions.

[0025] (Implementation Method 1)

[0026] Below, use Figure 1 to Figure 5 Implementation method 1 will be described.

[0027] [1-1. Structure]

[0028] [1-1-1. Structure of the first outdoor unit]

[0029] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0030] Figure 1 FIG. 1 is a perspective view of the first outdoor unit 1 of this embodiment. Figure 1 In the figure, for convenience of explanation, a part of the support column 30, a part of the outdoor heat exchanger 18, and a part of the refrigerant pipe are omitted.

[0031] like Figure 1 As shown, the first outdoor unit 1 of the present embodiment includes a device forming a refrigeration circuit of an air conditioning device. The air conditioning device includes a refrigeration circuit formed by an indoor heat exchanger housed in the indoor unit, a compressor 12 and an expansion valve housed in the first outdoor unit 1, an outdoor heat exchanger 18, etc. The air conditioning device allows a refrigerant to flow through the refrigeration circuit, thereby performing air conditioning of a conditioned space in which the indoor unit is installed.

[0032] like Figure 1 As shown, the first outdoor unit 1 is a so-called top flow type or upward blowing type outdoor unit that draws air into the interior through an outdoor heat exchanger 18 disposed on the side, exchanges heat between the air and the refrigerant, and then blows the air out from above.

[0033] The first outdoor unit 1 includes a first casing 10 that is formed in a rectangular shape in a plan view and has a box shape whose longitudinal direction is the up-down direction, in other words, extends in the height direction.

[0034] like Figure 1 As shown, the first housing 10 includes a rectangular first bottom plate 20 in a plan view, pillars 30 erected at four bottom corners of the first bottom plate 20 , and a rectangular first frame member 36 whose four corners are connected to the pillars 30 .

[0035] The first bottom plate 20 is a plate-shaped member forming the bottom surface of the first housing 10. In the present embodiment, a pair of long sides 21 of the first bottom plate 20 are arranged along the left-right direction of the first housing 10, and a pair of short sides 23 are arranged along the front-back direction.

[0036] A pair of legs 24 for supporting the first housing 10 are provided on the lower surface of the first bottom plate 20. Each leg 24 is a rail-shaped member having a length dimension in the longitudinal direction substantially the same as that of the long side 21. These legs 24 are installed along each long side 21, respectively.

[0037] An intermediate support 34 is erected between the supports 30 at both ends on one long side 21 located on the front side of the first outdoor unit 1. The intermediate support 34 is provided near one end of the one long side 21. The front end of the intermediate support 34 is located below the upper end of each support 30.

[0038] The first frame-shaped member 36 is provided at a position closer to the upper end side than the lower end side of the support 30 in the long side direction of each support 30, that is, in the height direction of the first housing 10, in other words, closer to the upper end side than the lower end side of the first housing 10. The first frame-shaped member 36 includes a long side 37 having a length dimension substantially the same as the long side 21 and a short side 39 having a length dimension substantially the same as the short side 23.

[0039] In the first frame member 36 , the upper end of the intermediate support column 34 is connected to one long side 37 located on the front side of the first outdoor unit 1 .

[0040] The interior of the frame formed by one long side 21 , the support column 30 provided at one end of the long side 21 , one long side 37 , and the intermediate support column 34 on each side surface of the first housing 10 is covered by the lower panel 40 .

[0041] In addition, Figure 1 In the figure, for convenience of explanation, the lower panel 40 is indicated by a dot-dash line.

[0042] In the present embodiment, the side panels are omitted to form an opening in the frame formed by one long side 21, the support 30 provided at the other end of the long side 21, one long side 37, and the middle support 34. Similarly, the side panels are omitted to form an opening in the frame surrounded by the other long side 21, the support 30 at both ends of the long side 21, and the other long side 37, and in a pair of frames surrounded by the short sides 23, the support 30 at both ends of the short sides 23, and the short sides 39 of the first frame-shaped member 36.

[0043] Above each long side 37, the space between a pair of pillars 30 located at both ends of the long side 37 is covered by an upper panel 44. Both upper panels 44 are formed in a rectangular plate shape, and function as side panels that form the side surfaces located on the upper end side in the height direction of the first housing 10. These upper panels 44 are arranged at positions where the lower edges overlap with each long side 37, and at positions where the upper edges are substantially the same as the upper ends of the pillars 30.

[0044] Above each short side 39, the space between a pair of pillars 30 located at both ends of the short side 39 is covered by an upper panel 46. Both upper panels 46 are formed in a rectangular plate shape and function as side panels forming the side surfaces of the first housing 10. These upper panels 46 are arranged at positions where the lower edges overlap with the short sides 39, and at positions where the upper edges are substantially the same as the upper ends of the pillars 30.

[0045] A pair of top panels 48 forming the top surface of the first housing 10 are provided at the upper end of the first housing 10. Each top panel 48 is a plate-like member whose length dimension in the long side direction is formed into a rectangle substantially the same as the length dimension of the short side 23. Each top panel 48 is arranged in such a manner that the long side direction is along the short side 23 and is in contact with the short side 39. Therefore, each top panel 48 is arranged at a predetermined distance from each other on the top surface of the first housing 10 in the direction in which the long side 21 extends.

[0046] On the top surface of the first housing 10, an exhaust port 47 as a rectangular opening is formed by the upper edges of the upper panels 44 and the edges of the top panels 48. The exhaust port 47 is covered by a fan guard 56. The fan guard 56 is a protective member formed in a rectangular lattice shape.

[0047] The interior of the first housing 10 is divided into a machine room 11 located below the first housing 10 and a fan room 13 located above the first housing 10 by the first frame member 36. That is, the lower panels 40 and 42 surround the machine room 11, and the upper panels 44 and 46 surround the fan room 13.

[0048] The machine room 11 accommodates various devices forming a refrigeration circuit, such as a compressor 12 , an accumulator 14 , a capillary tube 16 functioning as an expansion valve, and an outdoor heat exchanger 18 , and refrigerant pipes interconnecting these devices.

[0049] Various devices such as the compressor 12 and the accumulator 14 are placed on the first bottom plate 20. In addition, a casing for accommodating at least the compressors 12 may be provided in the machine room 11.

[0050] The outdoor heat exchanger 18 is a heat exchanger that functions as an evaporator for evaporating the refrigerant supplied from the indoor unit, or as a condenser for condensing the refrigerant. The outdoor heat exchanger 18 of this embodiment is a so-called fin-tube heat exchanger. The outdoor heat exchanger 18 has a plurality of metal fins joined to a copper refrigerant pipe, and is formed as a strip having a predetermined width as a whole.

[0051] The outdoor heat exchanger 18 is arranged in a manner that the width direction perpendicular to the long side direction in the machine room 11 is along the height direction of the first housing 10. The outdoor heat exchanger 18 is formed in a manner that the width dimension perpendicular to the long side direction and the height dimension from the first bottom plate 20 to the first frame-shaped member 36 are substantially the same. Therefore, the outdoor heat exchanger 18 is arranged below the first frame-shaped member 36. The outdoor heat exchanger 18 is placed on the first bottom plate 20.

[0052] One end of the outdoor heat exchanger 18 in the long-side direction is fixed to another support 30 on one long side 21. The outdoor heat exchanger 18 is arranged so as to extend along each side in the order of one short side 23, another long side 21, another short side 23, and one long side 21 from the support 30. Therefore, the outdoor heat exchanger 18 is bent along the long-side direction at a predetermined bend R so that each corner of the first bottom plate 20 is substantially C-shaped when viewed from above. The other end of the outdoor heat exchanger 18 in the long-side direction is fixed to the middle support 34.

[0053] The outdoor heat exchanger 18 disposed in this manner is exposed to the outside of the first housing 10 through openings provided on the side surfaces of the first housing 10 .

[0054] The fan chamber 13 contains a fan 50. The fan 50 is a so-called axial flow fan. The fan 50 includes an impeller 52, a bell mouth 54, and a fan motor as a driving unit for driving the impeller 52. The fan 50 is arranged so that the axial flow direction faces the exhaust port 47. The fan 50 is covered with a fan guard 56 above.

[0055] [1-1-2. Structure of the first base plate]

[0056] Figure 2 20 is a three-dimensional diagram of the first base plate. Figure 2 In the figure, for the convenience of explanation, the separation portion S is represented by being surrounded by a dotted line.

[0057] Next, the first bottom plate 20 will be described in detail.

[0058] The first bottom plate 20 of the present embodiment is formed of a plate-shaped metal material.

[0059] like Figure 2 As shown, ribs 22 are provided on each short side 23 of the first bottom plate 20 and rise upward at a predetermined height. Similarly, ribs 26 are provided on the upper surface of the leg portion 24 and rise upward at a predetermined height along each long side 21.

[0060] These ribs 22 and 26 reinforce the first bottom plate 20 and function as a dam portion to block water inside the first housing 10 , such as condensed water and moisture contained in the air flowing in from the outside of the first housing 10 .

[0061] The first bottom plate 20 is provided with a plurality of drain holes 70 as through holes along each side near the inner side of each rib 22, 26. In the first outdoor unit 1, water inside the first housing 10 is drained to the outside of the first housing 10 through the drain holes 70.

[0062] A plurality of connection holes 77 are provided on the first bottom plate 20 at a position close to the other short side 23. Each connection hole 77 is a through hole through which a fastening member such as a screw member can pass. In the present embodiment, three connection holes 77 are arranged along the direction in which the short side 23 extends. Each connection hole 77 is arranged at a position closer to one short side 23 than the drain hole 70.

[0063] The first bottom plate 20 is provided with a plurality of drawn recesses 71 as a structure for reinforcing the first bottom plate 20. Each drawn recess 71 is recessed from the upper surface to the lower surface of the first bottom plate 20 and has a groove shape extending along the short side 23. These drawn recesses 71 are formed by drawing the first bottom plate 20. In the present embodiment, each drawn recess 71 extends from one long side 21 to the other long side 21 and is provided at predetermined intervals from each other along the direction in which the long side 21 extends.

[0064] On the first bottom plate 20, a plurality of mold recesses 73 are provided at positions avoiding the respective drawing recesses 71, and the mold recesses 73 are structures for reinforcing the first bottom plate 20 so that the compressor 12 can be placed thereon. Each mold recess 73 is a reinforcing shape for reinforcing the first bottom plate 20. Each mold recess 73 has a shape that is recessed from the upper surface to the lower surface of the first bottom plate 20. These mold recesses 73 are arranged at positions close to the positions of various devices or refrigerant pipes placed on the first bottom plate 20, and are formed into a predetermined shape. These mold recesses 73 are formed by drawing the first bottom plate 20 using a mold formed for setting the mold recesses 73. On the first bottom plate 20, the mold recesses 73 are arranged at predetermined intervals from each other along the long side direction of the first bottom plate 20. One of the mold recesses 73 is arranged at a position close to one short side 23, and the other mold recess 73 is arranged at a substantially center in the direction in which the long side 21 extends.

[0065] The first bottom plate 20 is provided with a mold protrusion 75 at a position avoiding the arrangement positions of various devices or refrigerant pipes placed on the first bottom plate 20. The mold protrusion 75 is a reinforcing shape for reinforcing the first bottom plate 20 so that the compressor 12 can be placed thereon. The mold protrusion 75 is formed into a shape protruding from the lower surface to the upper surface of the first bottom plate 20 by drawing using a mold formed for providing the mold protrusion 75.

[0066] In the present embodiment, the mold protrusion 75 is arranged at a position close to the other short side 23 and has a shape extending along the short side 23. Therefore, the mold protrusion 75 is arranged at a position close to the three connection holes 77. Specifically, the three connection holes 77 are arranged between the drain hole 70 provided along the other short side 23 and the mold protrusion 75.

[0067] Two of the three connection holes 77 are arranged at positions close to both ends of the mold protrusion 75 in the long-side direction. The connection hole 77 located between the two connection holes 77 is arranged at a position approximately in the center of the direction in which the short side 23 of the first bottom plate 20 extends and close to the approximately center of the mold protrusion 75 in the long-side direction. The mold protrusion 75 is provided with a peripheral portion 79 that surrounds the connection hole 77 at a predetermined distance to avoid the connection hole 77. By providing the peripheral portion 79, the connection hole 77 can be provided at the approximately center of the first bottom plate 20 in the direction in which the short side 23 extends.

[0068] A plurality of fixing pins 72 extending linearly upward at a predetermined height dimension are provided on the upper surface of the first bottom plate 20. These fixing pins 72 function as fixing portions for fixing the compressor 12. In the present embodiment, the compressor 12 is fixed to the first bottom plate 20 by inserting the fixing pins 72 into holes provided in a plurality of legs of the compressor 12 and fixing the legs and the fixing pins 72 with fastening members such as nuts.

[0069] A plurality of fixing protrusions 74 having a shape protruding upward are provided on the upper surface of the first bottom plate 20. These fixing protrusions 74 function as fixing portions for fixing the compressor 12. These fixing protrusions 74 are formed by drawing the first bottom plate 20. An insertion hole 76 is provided at the top of each fixing protrusion 74 as a through hole penetrating the lower surface side of the first bottom plate 20.

[0070] In the present embodiment, only one compressor 12 is provided in the first outdoor unit 1. The compressor 12 is fixed to the first bottom plate 20 via the fixing pins 72. In contrast, the compressor 12 is not arranged on the fixing protrusions 74.

[0071] In addition, in the first outdoor unit 1 , another compressor 12 may be fixed via each fixing protrusion 74 , so that two compressors 12 may be provided.

[0072] [1-1-3. Structure of the second outdoor unit]

[0073] Figure 3 FIG. 1 is a perspective view of the second outdoor unit 100 according to the present embodiment. Figure 3 In the figure, for convenience of explanation, a part of the support column 30, a part of the outdoor heat exchanger 118, and a part of the refrigerant pipe are omitted.

[0074] Next, the second outdoor unit 100 will be described.

[0075] The second outdoor unit 100 of this embodiment is a top flow outdoor unit including equipment forming a refrigeration circuit of an air conditioning device, similarly to the first outdoor unit 1. The second outdoor unit 100 includes a second housing 110, a plurality of compressors 12, a plurality of fans 50, and an outdoor heat exchanger 118, which is different from the first outdoor unit 1 in this respect.

[0076] The second outdoor unit 100 is formed in a rectangular shape in a plan view, and includes a box-shaped second housing 110 whose long sides extend in the height direction. The second housing 110 is formed by using the same members as those forming the first housing 10 .

[0077] like Figure 3 As shown, the second housing 110 includes: a second bottom plate 120 that is rectangular in a plan view, pillars 30 that are respectively provided upright at four corners of the second bottom plate 120 , and a rectangular second frame member 136 that connects the four corners to these pillars 30 .

[0078] The second bottom plate 120 is a plate-shaped member that forms the bottom surface of the second housing 110. The second bottom plate 120 is formed by attaching the additional bottom plate 80 as a plate-shaped member to one short side 23 of the first bottom plate 20. That is, the second bottom plate 120 is formed by extending the first bottom plate 20 that forms the bottom surface of the first housing 10 by the additional bottom plate 80.

[0079] Therefore, the second bottom plate 120 includes a short side 123 having a length substantially the same as that of the short side 23 , and a long side 121 having a length longer than that of the long side 21 .

[0080] In the present embodiment, the pair of long sides 121 of the second bottom plate 120 are arranged along the left-right direction of the second housing 110 , and the pair of short sides 123 are arranged along the front-back direction.

[0081] A pair of legs 124 for supporting the second housing 110 are provided on the lower surface of the second bottom plate 120. Each leg 124 has a shape substantially the same as that of the leg 24 and is a rail-shaped member longer than the leg 24. Each leg 124 has a length dimension substantially the same as that of the long side 121 in the long side direction. These legs 124 are installed along each long side 121.

[0082] A central support column 32 is erected substantially in the center of one long side 21 located on the front side of the second outdoor unit 100. The central support column 32 extends to substantially the same height as the respective support columns 30. In addition, an intermediate support column 34 is erected between one support column 30 and the central support column 32 on one long side 21.

[0083] The second frame member 136 is provided at an upper end side relative to the lower end side of the second housing 110 similarly to the first frame member 36. The second frame member 136 includes a long side 137 having substantially the same length as the long side 121 and a short side 139 having substantially the same length as the short side 123.

[0084] A central support column 32 is connected to a substantially center of one long side 137 located on the front side of the second outdoor unit 100 , and an upper end of an intermediate support column 34 is connected between one support column 30 and the central support column 32 .

[0085] In each side surface of the second housing 110, the frame formed by one long side 121, the support 30 provided at one end of the long side 121, one long side 137, and the center support 32 is covered by the lower panel 40. Similarly, the frame formed by the long side 21 located on the front side of the second outdoor unit 100, the intermediate support 34, one long side 37, and the center support 32 is covered by the lower panel 42. The lower panel 42 is formed in a rectangular plate shape similarly to the lower panel 40, and functions as a side panel forming the side surface of the second housing 110.

[0086] In addition, Figure 3 In the figure, for convenience of explanation, the lower panel 40 and the lower panel 42 are indicated by dot-dash lines.

[0087] In the second housing 110, similarly to the first housing 10, the side panels are omitted in the frame formed by one long side 121, the pillar 30 provided at the other end of the long side 121, one long side 137, and the middle pillar 34, and the side panels are omitted to form an opening. Similarly, the side panels are omitted in the frame surrounded by the other long side 121, the pillars 30 at both ends of the long side 121, and the other long side 137, and the short sides 123, the pillars 30 at both ends of the short sides 123, and the pair of frames surrounded by the short sides 139 of the second frame-shaped member 136.

[0088] Above each long side 137, the space between a pair of pillars 30 located at both ends of the long side 137 is covered by two upper panels 144. These four upper panels 144 are each formed in a rectangular plate shape and function as side panels forming the side surfaces located at the upper end side of the second housing 110 in the height direction.

[0089] Two upper panels 144 located on one long side 137 are arranged side by side on both sides of the central support 32 along the direction in which the long side 37 extends. Two upper panels 44 located on the other long side 37 are arranged side by side along the direction in which the long side 137 extends. These upper panels 144 are arranged at positions where the lower edges overlap with the respective long sides 137, and at positions where the upper edges are substantially the same as the upper ends of the support 30.

[0090] Above each short side 139 , a portion between a pair of pillars 30 located at both ends of the short side 139 is covered by an upper panel 46 similarly to the first housing 10 .

[0091] On the top surface of the second housing 110, the upper edges of the upper panels 144 and the upper edges of the upper panels 46 form a rectangular opening, namely, an exhaust port 147. A linear mounting member 64 is provided at the exhaust port 147, extending along the short side 139 and dividing the exhaust port 147 into two along the direction in which the long side 137 extends. In addition, the exhaust port 147 is covered by two fan guards 56.

[0092] In addition, the second outdoor unit 100 is not limited to the two fan guards 56 , and a single guard member that covers the entire exhaust port 47 may be provided.

[0093] The interior of the second housing 110 is divided into a machine room 111 located below the second housing 110 and a fan room 113 located above the second housing 110 by the second frame member 136. That is, the lower panels 40 and 42 surround the machine room 111, and the upper panels 144 and 46 surround the fan room 113.

[0094] The machine room 111 accommodates various devices such as the two compressors 12 , the accumulator 14 , the capillary tube 16 , and the outdoor heat exchanger 118 , and refrigerant pipes that interconnect them.

[0095] The compressors 12 and the accumulator 14 are placed on the second bottom plate 120. In addition, a casing that at least accommodates the compressors 12 may be provided in the machine room 111.

[0096] One of the two compressors 12 is fixed to the second bottom plate 120 via a plurality of fixing pins 72 , similarly to the first outdoor unit 1 .

[0097] The other compressor 12 is fixed to the second bottom plate 120 via a plurality of fixing protrusions 74. Specifically, a columnar support member is inserted into the insertion hole 76 of each fixing protrusion 74, and the support member is inserted into a hole provided in the leg of the compressor 12, and the leg and the support member are fixed by a fastening member such as a nut, thereby being fixed to the first bottom plate 20.

[0098] In the second base plate 120, the devices other than the compressor 12 and the outdoor heat exchanger 118, and the refrigerant piping connecting them to each other are arranged in substantially the same manner as the first outdoor unit 1, and are all placed on the first base plate 20. Therefore, in the second outdoor unit 100, in the machine room 111, the devices other than the compressor 12 and the outdoor heat exchanger 118, and the refrigerant piping connecting them to each other can be arranged in substantially the same positions as the first outdoor unit 1.

[0099] In addition, the second outdoor unit 100 may include only one compressor 12 , that is, the compressor 12 placed on the second bottom plate 120 .

[0100] The outdoor heat exchanger 118 is a so-called fin-tube heat exchanger, similar to the outdoor heat exchanger 18. The outdoor heat exchanger 118 includes a copper refrigerant pipe that is longer than the outdoor heat exchanger 18. Therefore, the outdoor heat exchanger 118 is formed as a whole to be longer than the outdoor heat exchanger 18. The outdoor heat exchanger 118 is formed so that the dimension in the direction perpendicular to the long side direction, that is, the width dimension is substantially the same as the width dimension of the outdoor heat exchanger 18.

[0101] The outdoor heat exchanger 118 is arranged in such a manner that the width direction perpendicular to the long side direction in the machine room 111 is along the height direction of the second housing 110. The outdoor heat exchanger 118 is formed so that the width dimension perpendicular to the long side direction is substantially the same as the height dimension from the second bottom plate 120 to the second frame-shaped member 136. Therefore, the outdoor heat exchanger 118 is arranged below the second frame-shaped member 136 in the same manner as the outdoor heat exchanger 18. The outdoor heat exchanger 118 is placed on the second bottom plate 120.

[0102] One end of the outdoor heat exchanger 118 in the long-side direction is fixed to the other support 30 of the one long side 121. The outdoor heat exchanger 118 is arranged extending along each side in the order of one short side 123, another long side 121, another short side 123, and one long side 121 from the support 30. The other end of the outdoor heat exchanger 118 in the long-side direction is fixed to the middle support 34.

[0103] As described above, the second housing 110 includes the second bottom plate 120 having the long sides 121 longer than the long sides 21 of the first bottom plate 20 , and thus can accommodate the outdoor heat exchanger 118 that is longer than the outdoor heat exchanger 18 .

[0104] The outdoor heat exchanger 118 arranged in this manner is exposed to the outside of the second housing 110 through openings provided on the side surfaces of the second housing 110 .

[0105] A pair of fans 50 are housed in the fan chamber 113. The fans 50 are arranged side by side along the long side 137 so as to be located on both sides of the mounting member 64. The fans 50 are arranged so as to face the exhaust port 147 in the axial direction. The fans 50 are covered with a pair of fan guards 56 at their tops.

[0106] [1-1-4. Structure of the second base plate]

[0107] Figure 4 It is a perspective view of the second bottom plate 120 .

[0108] Next, the second bottom plate 120 will be described in detail.

[0109] like Figure 4 As shown, the second bottom plate 120 includes the first bottom plate 20, the additional bottom plate 80, and a pair of legs 124. The second bottom plate 120 is formed by extending the first bottom plate 20 using the additional bottom plate 80.

[0110] When forming the second bottom plate 120, the first bottom plate 20 includes a connecting portion C. The connecting portion C is formed by cutting or the like. Figure 2 The separation portion S shown is formed by separating the edge portion along the short side 23 of the first bottom plate 20. The separation portion S is a range from the other short side 23 to the side of the short side 23 closer to each connection hole 77 in the direction along the long side 21 of the first bottom plate 20. If the connection portion C is formed on the first bottom plate 20, each connection hole 77 is located at the end of the first bottom plate 20.

[0111] Figure 5 It is a perspective view of the additional bottom plate 80 .

[0112] The additional base plate 80 is a rectangular plate-shaped member in a plan view. The additional base plate 80 is formed of a plate-shaped metal material. The additional base plate 80 includes a first side 81 shorter than the long side 21 of the first base plate 20 and a second side 83 substantially the same in size as the short side 23 of the first base plate 20.

[0113] On the additional base plate 80, a plurality of connection holes 87 are provided at an edge portion 88 located on the side of one second side 83, along the direction in which the second side 83 extends. Each connection hole 87 is a through hole into which a fastening member such as a screw member can be inserted. In the present embodiment, three connection holes 87 are arranged in parallel along the direction in which the second side 83 extends at substantially the same interval as the connection holes 77.

[0114] On the other second side 83, a rib 82 having a shape substantially the same as that of the rib 22 and rising upward at a predetermined height dimension is provided. Similarly, on the surface of the foot portion 124, a rib 126 rising upward at a predetermined height dimension from the upper surface of the second bottom plate 120 is provided along each long side 121. These ribs 122, 126 reinforce the second bottom plate 120 and function as a dam portion to block water inside the second housing 110.

[0115] The additional bottom plate 80 is provided with a plurality of drain holes 90 as through holes at positions close to the inner side of the rib 82 along the second side 83. The drain holes 90 function as holes for draining water from the inside of the second housing 110, similarly to the drain holes 70.

[0116] The additional base plate 80 is provided with a plurality of drawn recesses 91 as a structure for reinforcing the additional base plate 80. Each drawn recess 91 has a shape substantially the same as the drawn recess 71 and is recessed from the upper surface to the lower surface of the additional base plate 80 and extends along the short side 23 in the shape of a groove. Similar to the drawn recess 71, the drawn recesses 91 are formed by drawing the additional base plate 80 without using a mold. In the present embodiment, each drawn recess 91 extends from one first side 81 to the other first side 81 and is provided at predetermined intervals from each other along the direction in which the first side 81 extends.

[0117] As described above, only a part of the outdoor heat exchanger 118 is placed on the additional base plate 80, and the two compressors 12, the accumulator 14, the capillary tube 16, various devices other than the outdoor heat exchanger 118, and the refrigerant pipes connecting them are not placed. Therefore, the additional base plate 80 does not need to be provided with a reinforcing shape such as using a mold like the first base plate 20. That is, the additional base plate 80 can be manufactured without using a mold.

[0118] [1-2. Action]

[0119] [1-2-1. How to use the first shell]

[0120] Next, the usage of the first housing 10 will be described.

[0121] The first housing 10 includes a first bottom plate 20 forming the bottom surface of the first housing 10. Various devices such as a compressor 12 and an accumulator 14, refrigerant piping, and an outdoor heat exchanger 18 are placed on the first bottom plate 20. In the first housing 10, a machine room 11 is formed by surrounding the pillars 30, the middle pillars 34, and the lower panel 40 in the space above the first bottom plate 20 where the various devices are placed. In addition, in the first housing 10, a fan 50 is arranged above the machine room 11, and the fan 50 is covered by the upper panel 44 and the upper panel 46, thereby forming a fan room 13. Thus, the first outdoor unit 1 of the air conditioning device including the first housing 10 is formed.

[0122] [1-2-2. How to use the second shell]

[0123] Next, the usage of the first housing 10 will be described.

[0124] The second housing 110 includes a second bottom plate 120 forming the bottom surface of the second housing 110. On the second bottom plate 120, various devices such as two compressors 12 and an accumulator 14, refrigerant piping, and an outdoor heat exchanger 118 are placed. In the second housing 110, a space above the second bottom plate 120 on which the various devices are placed is surrounded by the pillars 30, the center pillar 32, the middle pillar 34, the lower panel 40, and the lower panel 42 to form a machine room 111. In the second housing 110, a pair of fans 50 are arranged above the machine room 111, and each fan 50 is covered by the upper panel 144 and the upper panel 46, thereby forming a fan room 113. Thus, the first outdoor unit 1 of the air conditioning device including the second housing 110 is formed.

[0125] Since the second outdoor unit 100 includes two compressors 12, it has higher horsepower than the first outdoor unit 1. In addition, since the second outdoor unit 100 includes an outdoor heat exchanger 118 longer than the outdoor heat exchanger 18 included in the first outdoor unit 1, it has higher energy consumption efficiency than the first outdoor unit 1.

[0126] [1-2-3. Assembly of the second base plate]

[0127] Next, the assembly of the second bottom plate 120 provided on the second housing 110 will be described.

[0128] When forming the second bottom plate 120, first, the connection portion C is formed on the first bottom plate 20. When forming the connection portion C, the first bottom plate 20 is cut in the direction along the long side 21 at a position between the drain hole 70 provided along the other short side 23 and each connection hole 77. Thus, the separation portion S is separated, and the connection portion C in which each connection hole 77 is located at the end of the first bottom plate 20 is formed on the first bottom plate 20.

[0129] By separating the separation portion S in this manner, the ribs 22 protruding upward from the upper surface of the first bottom plate 20 are removed. Thus, in the second outdoor unit 100, when the second bottom plate 120 is formed, the additional bottom plate 80 can be superimposed on the first bottom plate 20.

[0130] Next, the edge portion 88 is overlapped with the connection portion C so that the connection holes 87 overlap with the connection holes 77. In the present embodiment, the additional bottom plate 80 is overlapped with the first bottom plate 20 so that the edge portion 88 is located on the upper surface of the connection portion C.

[0131] Then, fastening members such as screws are inserted into the connecting holes 87 and the connecting holes 77 to connect the first bottom plate 20 and the additional bottom plate 80. Thus, the first bottom plate 20 and the additional bottom plate 80 are connected by fastening members at three locations along the direction in which the short sides 123 extend.

[0132] Among the three connection holes 77, the connection hole 77 located in the center is arranged at the approximate center of the direction in which the short side 23 of the first bottom plate 20 extends. Therefore, the additional bottom plate 80 and the first bottom plate 20 are also fixed by the fastening member at the approximate center of the direction in which the short side 23 extends. Thus, the second bottom plate 120 can have substantially the same strength as when it is formed of a single plate-shaped member.

[0133] Legs 124 are attached to the lower surfaces of the connected first bottom plate 20 and the additional bottom plate 80 by means of fastening members, etc. Thus, the second bottom plate 120 is formed.

[0134] In the air conditioning apparatus of this embodiment, the first housing 10 of the first outdoor unit 1 can be formed using the first bottom plate 20. In the air conditioning apparatus, the second housing 110 of the second outdoor unit 100 can be formed using the second bottom plate 120 formed using the first bottom plate 20 and the additional bottom plate 80.

[0135] Thus, in the air conditioning apparatus, the first housing 10 having a size corresponding to the bottom surface before expansion and the second housing 110 having a size corresponding to the bottom surface after expansion can be selectively formed.

[0136] As described above, the additional base plate 80 is a component that can be manufactured without using a mold. That is, in the air conditioning device, by manufacturing only a mold for the first base plate 20, the first base plate 20 and the second base plate 120 can be manufactured and the first housing 10 and the second housing 110 can be formed. Therefore, in the air conditioning device, the first outdoor unit 1 and the second outdoor unit 100 can be manufactured while suppressing an increase in mold manufacturing costs.

[0137] [1-3. Effects, etc.]

[0138] As described above, in the present embodiment, the first outdoor unit 1 includes the first casing 10, and the first casing 10 includes the first bottom plate 20. The additional bottom plate 80 that expands the bottom surface of the first casing 10 can be connected to the first bottom plate 20.

[0139] Thus, in the outdoor unit of the air conditioning device, the first housing 10 having a size corresponding to the bottom surface before expansion and the second housing 110 having a size corresponding to the bottom surface after expansion can be selectively formed. Therefore, the air conditioning device can include multiple outdoor units while suppressing the production cost of the outdoor unit and the outdoor unit housing.

[0140] As shown in this embodiment, the first bottom plate 20 is provided with the mold recess 73 or the mold protrusion 75 as a reinforcement shape for mounting the compressor 12 on the upper surface of the first bottom plate 20. Alternatively, only the outdoor heat exchanger 118 may be mounted on the additional bottom plate 80.

[0141] Thus, in both the first outdoor unit 1 and the second outdoor unit 100, the compressor 12 can be placed on the upper surface of the first bottom plate 20. In contrast, the compressor 12 is not placed on the additional bottom plate 80, and only the lighter outdoor heat exchanger 118 is placed. Therefore, in the air conditioning apparatus, even in the case of either the first outdoor unit 1 or the second outdoor unit 100, either the first outdoor unit 1 or the second outdoor unit 100 can be manufactured without changing the arrangement position of the compressor 12 on the upper surface of the first bottom plate 20. In addition, there is no need to provide a reinforcement shape on the additional bottom plate 80, and the additional bottom plate 80 and the second bottom plate 120 can be formed at a lower cost.

[0142] As shown in the present embodiment, the separation portion S may be provided on the first bottom plate 20 , and the connection portion C to which the additional bottom plate 80 can be connected may be formed by removing the separation portion S from the first bottom plate 20 .

[0143] Thus, the rib 22 provided on the separation portion S is removed from the first bottom plate 20, and the connection hole 77 is arranged at the connection portion C which is the end portion of the first bottom plate 20. Therefore, when the second outdoor unit 100 is manufactured, the edge portion 88 of the additional bottom plate 80 is placed on the upper surface of the first bottom plate 20, the connection hole 77 and the connection hole 87 are overlapped, and the first bottom plate 20 and the additional bottom plate 80 are connected, so that the second bottom plate 120 can be formed.

[0144] (Other Embodiments)

[0145] As described above, as an example of the technology disclosed in this application, embodiment 1 is described. However, the technology of the utility model is not limited to this, and can also be applied to embodiments that have been changed, replaced, added, omitted, etc. In addition, the various components described in the above embodiment 1 can also be combined to form a new embodiment.

[0146] Therefore, other embodiments are exemplified below.

[0147] In the above embodiment, it is assumed that the compressor 12 is placed on the first bottom plate 20. The compressor 12 may be placed on the first bottom plate 20 at the center of gravity of the first bottom plate 20 or at a position closer to the other short side 23 on the side connected to the additional bottom plate 80 than the center of gravity of the first housing 10.

[0148] Thus, the compressor 12 is arranged at a position close to the center of gravity of the second base plate 120 and the second housing 110 having a larger size. Therefore, in the air conditioning apparatus, for example, when the second housing 110 having a larger size is suspended, the second housing 110 can be suspended in a more stable state.

[0149] The compressor 12 may be disposed on the first bottom plate 20 at a position overlapping the center of gravity of the second outdoor unit 100. In addition, various devices such as the accumulator 14 may be disposed in addition to the compressor 12 at a position close to the other short side 23 on the side connected to the additional bottom plate 80.

[0150] In the above embodiment, it is assumed that a plurality of compressors 12 may be placed on the first bottom plate 20. The arrangement position of at least one of the compressors 12 on the first bottom plate 20 may be the center of gravity of the first bottom plate 20, or a position closer to the other short side 23 on the side connected to the additional bottom plate 80 than the center of gravity of the first housing 10.

[0151] Thus, at least one of the plurality of compressors 12 is disposed at a position close to the center of gravity of the second base plate 120 and the second housing 110 having a larger size. Therefore, in the air conditioning apparatus, for example, when the second housing 110 having a larger size is suspended, the second housing 110 can be suspended in a more stable state.

[0152] In this case, at least a portion of at least one of the plurality of compressors 12 may be placed on the upper surface of the additional base plate 80 .

[0153] In the above embodiment, the second bottom plate 120 is formed by connecting one additional bottom plate 80 to one side of the first bottom plate 20. However, the present invention is not limited thereto, and in the case of manufacturing an outdoor unit of an air conditioning device, a new bottom plate may be formed by connecting a plurality of additional bottom plates 80 to the first bottom plate 20. In addition, in this case, additional bottom plates 80 may be provided on the first bottom plate 20 at a plurality of sides of the first bottom plate 20, respectively.

[0154] In the above embodiment, the second bottom plate 120 is formed by connecting the additional bottom plate 80 to the first bottom plate 20. However, the present invention is not limited thereto, and when manufacturing an outdoor unit of an air conditioning device, a new bottom plate may be formed by connecting another bottom plate provided with a reinforced shape capable of mounting the compressor 12 to the first bottom plate 20. In this case, a plurality of other bottom plates may be provided on the first bottom plate 20. In this case, at least one of the first bottom plate 20 and other bottom plates may be cut off and then connected to each other.

[0155] In the above embodiment, the outdoor heat exchangers 18 and 118 are fin-tube heat exchangers, but are not limited thereto, and may be other types of heat exchangers such as heat exchangers including flat tubes and headers.

[0156] In the above-described embodiment, the first outdoor unit 1 and the second outdoor unit 100 are upward-blowing outdoor units, but the present invention is not limited thereto and they may be horizontal-blowing outdoor units.

[0157] In addition, the above-mentioned embodiment is a form for illustrating the technology of the present invention, and therefore various changes, substitutions, additions, omissions, etc. can be made within the scope of the claims or their equivalents.

[0158] Industrial Applicability

[0159] The utility model is applicable to an outdoor unit that can selectively connect any one of heat exchangers with different refrigerant pipe lengths to the same outdoor unit. Specifically, the utility model is applicable to a top flow outdoor unit and the like.

[0160] Description of Reference Numerals

[0161] 11st outdoor unit (outdoor unit)

[0162] 101st shell (shell)

[0163] 12 Compressor

[0164] 18, 118 Outdoor heat exchanger

[0165] 201st base plate (base plate)

[0166] 73 mold concave part (reinforced shape)

[0167] 75 mold convex part (reinforcement shape)

[0168] 80 additional base plate

[0169] 100 2nd outdoor unit (outdoor unit)

[0170] 110 Second shell (shell)

[0171] 120 2nd base plate

[0172] C Connection

[0173] S separation section.

Claims

1. An outdoor unit, comprising a housing having a bottom plate, characterized in that: The bottom plate can be connected to an additional bottom plate for expanding the bottom surface of the shell. The bottom plate is provided with a reinforcement shape that enables a compressor to be placed on the upper surface of the bottom plate. Only the heat exchanger is placed on the additional bottom plate.

2. The outdoor unit according to claim 1, characterized in that: The compressor is arranged at a position closer to the additional base plate than the center of gravity of the base plate.

3. The outdoor unit according to claim 1, characterized in that: The bottom plate is arranged in a manner capable of mounting two or more compressors. At least one of the compressors is arranged at a position closer to the additional base plate than the center of gravity of the base plate.

4. The outdoor unit according to any one of claims 1 to 3, characterized in that: The base plate is provided with a separation portion, and a connection portion capable of connecting the additional base plate is formed by removing the separation portion from the base plate.

Images