JP2011094914A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of relaxing a stress generated in a connecting pipe upon starting of a constant speed compressor by a simple structure. <P>SOLUTION: The air conditioner includes a constant speed compressors having an electric element driving at a substantially constant rotating speed and a rotational compression element driven by the electric element to compress refrigerant, which are stored in a sealed container 61. The constant speed compressor is fixed onto a bottom plate 10 of an outdoor unit 2A with a mount rubber 63 being interposed between a plurality of leg piece portions 62 provided on the sealed container 61 and the bottom plate 10. The air conditioner further includes a connecting member 70 which extends laterally to the mount rubber 63 disposed on the leg piece portions 62 and regulates deformation of the mount rubber 63 associated with the starting of the constant speed compressor. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an air conditioner having a constant speed compressor.

  2. Description of the Related Art Conventionally, an air conditioner including an outdoor unit having a plurality of compressors is known in order to sufficiently secure cooling and heating capabilities. This type of air conditioner includes a variable speed compressor (inverter compressor) whose rotation speed can be controlled by an inverter, and a constant speed compressor (constant speed compressor) that operates only at a constant speed depending on the power supply frequency. ) Is generally provided. (For example, refer to Patent Document 1).

JP 2003-130492 A

By the way, this type of compressor is a hermetic compressor in which an electric element and a rotary compression element that is driven by the electric element and compresses a refrigerant are contained in a cylindrical hermetic container. A plurality of leg pieces provided are provided, and a vibration-proof mount rubber is interposed between the leg pieces and the bottom plate of the outdoor unit, and the leg pieces are fixed on the bottom plate. In the compressor, three pipes for refrigerant suction, refrigerant discharge, and oil circulation are connected to an airtight container. In a constant speed compressor, unlike an inverter compressor, a large torque is generated in an airtight container in order to follow a rapid rotational speed at the time of startup. The large torque generated at the time of starting causes a problem that the mount rubber is greatly deformed through the leg pieces and a great stress is applied to each pipe.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an air conditioner that has a simple configuration and that mitigates stress generated in a connection pipe when a constant speed compressor is started.

  In order to achieve the above object, the present invention provides a constant-speed compressor that houses an electric element that is driven in a sealed container at a substantially constant rotational speed, and a rotary compression element that is driven by the electric element and compresses refrigerant. And an air conditioner in which the constant speed compressor is fixed on the bottom plate with an elastic member interposed between the plurality of leg pieces provided on the sealed container and the bottom plate, at least one leg piece portion It is provided with a regulating member that extends to the side of the elastic member that is disposed at the side and regulates deformation of the elastic member that accompanies activation of the constant speed compressor.

  In this configuration, the restriction member may include a contact portion that contacts the elastic member and restricts deformation of the elastic member when the constant speed compressor is started. The contact portion may have a configuration in which the upper edge corner portion of the contact portion has an R shape.

  Moreover, the said limitation member is good also as a structure provided with the stationary plate part extended below the said baseplate and bolted to the said leg piece part. Moreover, it is good also as a structure provided with the opening which can attach the said control member from the upper direction of the said baseplate in the said baseplate. The contact portion may be provided in a bent portion formed by bending a sheet metal up and down.

  According to the present invention, there is provided a constant speed compressor that houses an electric element that is driven at a substantially constant rotational speed in a sealed container, and a rotary compression element that is driven by the electric element and compresses a refrigerant. The machine is fixed on the bottom plate with an elastic member interposed between the plurality of leg pieces provided on the sealed container and the bottom plate, and is disposed on the side of the elastic member disposed on at least one leg piece. Since it is provided with a restricting member that extends and restricts deformation of the elastic member accompanying the start of the constant speed compressor, the restricting member is easily received by receiving a torque acting on the hermetic container at the start of the constant speed compressor. With this configuration, excessive deformation of the elastic member is prevented, and stress acting on the piping provided in the sealed container can be relieved.

It is a refrigerant circuit figure of the air harmony device concerning this embodiment. It is a refrigerant circuit diagram which shows the structure of an outdoor unit. It is a fragmentary perspective view of the outdoor unit which shows the arrangement configuration of a constant speed compressor. It is a figure which shows the arrangement configuration of a leg piece part, mount rubber | gum, and a control member. FIG. 5 is a side sectional view of FIG. 4. It is arrangement | positioning block diagram of the control member concerning another embodiment. It is arrangement | positioning block diagram of the control member concerning another embodiment. It is arrangement | positioning block diagram of the control member concerning another embodiment. It is arrangement | positioning block diagram of the control member concerning another embodiment. It is arrangement | positioning block diagram of the control member concerning another embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, the code | symbol 1 shows an air conditioning apparatus. The air conditioner 1 includes a plurality (two) of outdoor units 2A, 2B and a plurality (two) of indoor units 3A, 3B. The outdoor units 2A, 2B and the indoor units 3A, 3B Are connected by a gas pipe 4 and a liquid pipe 5.

  The indoor unit 3A includes an indoor heat exchanger 8 and an indoor expansion valve 9. One end of the indoor heat exchanger 8 is connected to the gas pipe 4, and the other end of the indoor heat exchanger 8 is indoor expansion. The valve 9 is connected to the liquid pipe 5. In addition, the indoor unit 3A is provided with a temperature sensor or the like that detects the inlet / outlet temperature or room temperature of the indoor heat exchanger 8, and an indoor control device that inputs the detection results of these sensors to control the indoor unit 3A. (Not shown). Moreover, since the indoor unit 3B has substantially the same configuration as the indoor unit 3A, the same portions are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 2 is an enlarged circuit diagram showing the configuration of the outdoor unit 2A. The outdoor unit 2B has substantially the same configuration, and a description thereof is omitted. The outdoor unit 2A includes a plurality of (two) constant capacity type constant speed compressors (AC compressors) 11a and 11b, a variable capacity inverter compressor (DC inverter compressor) 12, an accumulator 13, An oil separator 14, a four-way valve 15, outdoor heat exchangers 16a and 16b, outdoor expansion valves 17a and 17b, a receiver tank 18, and the like are schematically configured.

The constant speed compressors 11a and 11b and the inverter compressor 12 are connected in parallel. Depending on the magnitude of the air conditioning load of the indoor units 3A and 3B, the start and stop of these compressors 11a, 11b and 12 and inverter compression The operating frequency of the machine 12 is controlled. One end of the suction pipe 31 is connected to the suction ports of the compressors 11 a, 11 b, and 12, and the other end of the suction pipe 31 is connected to the four-way valve 15 via the accumulator 13.
One end of a discharge pipe 32 is connected to the discharge port of each compressor 11 a, 11 b, 12, and the other end of the discharge pipe 32 is connected to the four-way valve 15 via the oil separator 14. The four-way valve 15 is switched so that the suction pipe 31 and the discharge pipe 32 communicate with the indoor gas pipe 35 connected to the gas pipe 4 or the outdoor heat exchangers 16a and 16b, respectively.
The outdoor heat exchangers 16a and 16b are connected to the liquid pipe 5 via the outdoor expansion valves 17a and 17b, the receiver tank 18 and the auxiliary cooling circuit 21. In addition, check valves 19a and 19b are connected in parallel with the outdoor expansion valves 17a and 17b. The check valves 19a and 19b allow the refrigerant to flow from the outdoor heat exchangers 16a and 16b to the receiver tank 18. The refrigerant flow in the reverse direction is prohibited.
The auxiliary cooling circuit 21 contributes to the improvement of COP by supercooling the liquid refrigerant condensed in the outdoor heat exchangers 16a and 16b during the cooling operation. The auxiliary cooling circuit 21 is a so-called double-pipe heat exchanger, and an indoor liquid pipe 33 connected to the receiver tank 18 and the liquid pipe 5 is communicated with the inner pipe, and an indoor liquid pipe is connected to the outer pipe. A branch pipe 34 branched from the pipe 33 and connected to the suction pipe 31 communicates. The electric expansion valve 22 is disposed in the branch pipe 34. The refrigerant flowing through the branch pipe 34 evaporates when the refrigerant flowing through the indoor liquid pipe 33 is cooled, and is returned to the suction ports of the compressors 11 a, 11 b, and 12 through the suction pipe 31.

The oil separator 14 is connected to an oil return pipe 36 that returns excess oil to the suction pipes 31 of the compressors 11a, 11b, and 12 when the amount of oil stored in the oil separator 14 is equal to or greater than a predetermined amount. An oil branch pipe 36A is connected to the oil return pipe 36, and the oil branch pipe 36A is connected to the oil balance pipe 6 via a check valve 38. An oil branch pipe 36A extending from the oil separator 14 of another outdoor unit 2B (see FIG. 1) is connected to the oil balance pipe 6 so that the oil amount is balanced between the plurality of outdoor units 2A and 2B. Yes.
Each of the compressors 11a, 11b, and 12 is a high-pressure vessel compressor that has a high pressure inside during a compression operation. The high-pressure portion (inside the high-pressure vessel) of one compressor and the low-pressure portion (suction) of another compressor. And the inside of the pipe 31) are connected by an oil pipe 37 so that the amount of oil in each of the compressors 11a, 11b, and 12 is appropriately adjusted.

The discharge pipe 32 of the outdoor unit 2A is provided with a check valve 25, and the discharge gas flows backward when the operation of each of the compressors 11a, 11b, 12 is stopped, and the compression elements of the compressors 11a, 11b, 12 are reversed. Prevents rotation.
The discharge pipe 32 is provided with a discharge pressure sensor HP that detects the pressure of the discharge gas of each of the compressors 11a, 11b, and 12, and a discharge temperature sensor 40 that detects the temperature of the discharge gas. The suction pipe 31 is provided with a suction pressure sensor LP that detects the pressure of the suction gas of each of the compressors 11a, 11b, and 12, and a suction temperature sensor 41 that detects the temperature of the suction gas. The outdoor heat exchangers 16a and 16b are provided with temperature sensors 42 and 43 for detecting the inlet / outlet temperatures of the outdoor heat exchangers 16a and 16b, respectively. Further, a high pressure switch HPS is disposed between the oil separator 14 and the four-way valve 15, and a low pressure switch LPS is disposed between the four-way valve 15 and the accumulator 13. These pressure sensor, temperature sensor, and pressure switch are all connected to the outdoor control device 50, and the outdoor control device 50 acquires the pressure and temperature detected by each of these sensors and the signal output from each switch. .
The outdoor control device 50 is executed by a CPU (Central Processing Unit), a control program executed by the CPU, a ROM (Read Only Memory) that stores data related to the control program in a nonvolatile manner, and the CPU. A program, a RAM (Random Access Memory) that temporarily stores data relating to the program, and the like are provided.
The outdoor control device 50 of any of the outdoor units 2A and 2B communicates with other outdoor control devices 50 and indoor control devices in accordance with user instructions input via a remote controller (not shown), and this air conditioning Operation control of the entire apparatus 1 is performed. Specifically, in order to realize the operation instructed by the user, the outdoor control device 50 determines the start / stop of the compressor and the operation frequency based on the pressure and temperature detected by the pressure sensor and temperature sensor of the unit. Control and open / close / switch various valves.

FIG. 3 is a partial perspective view of the outdoor unit showing the arrangement configuration of the constant speed compressor 11a.
The constant speed compressor 11a is a hermetic scroll compressor, and includes a hermetic container 61 and a power supply element (not shown) housed in the hermetic container 61 and driven at a substantially constant rotational speed depending on the power frequency. And a rotary compression element (not shown) that is driven by the power supply element to compress the refrigerant. As shown in FIG. 3, the sealed container 61 is a cylindrical container that is long in the height direction, and a plurality of leg pieces 62 extending radially are provided at the lower portion of the sealed container 61.
The constant speed compressor 11a is fixed to the bottom plate 10 with a mount rubber (elastic member) 63 interposed between the leg pieces 62 and the bottom plate 10 of the outdoor unit 2A. Specifically, the leg piece 62 and the mount rubber 63 are penetrated by a bolt 65 with a flat washer 64, and the bolt 65 is screwed to the bottom plate 10.

By the way, the constant speed compressors 11a and 11b operate at a constant speed depending on the power supply frequency. Therefore, when the constant speed compressor 11 is started up, a large torque is generated to rapidly follow a predetermined rotational speed. It generate | occur | produces in the airtight container 61 of constant speed compressor 11a, 11b, and this airtight container 61 vibrates. As described above, the mount rubber 63 is interposed between the leg piece portion 62 of the sealed container 61 and the bottom plate 10 and functions to suppress vibration. However, when a large rotational torque is generated in the sealed container 61 at the time of startup, the mount rubber 63 is greatly deformed, and a great stress is applied to the suction pipe 31, the discharge pipe 32, and the oil pipe 37 connected to the sealed container 61. .
In the present configuration, there is provided a regulating member 70 that extends to the side of the mount rubber 63 and regulates deformation of the mount rubber 63 due to rotational torque acting on the sealed container 61 when the constant speed compressors 11a and 11b are activated.

FIG. 4 is a view showing an arrangement configuration of the leg pieces 62, the mount rubber 63, and the regulating member 70, and FIG. 5 is a side sectional view of FIG.
As shown in FIGS. 4 and 5, the leg piece portion 62 includes an upper surface portion 62 </ b> A and a side surface portion 62 </ b> B that extends downward from the edge portion of the upper surface portion 62 </ b> A, and the upper surface portion of the side surface portion 62 </ b> B and the mount rubber 63. And overlap in side view. Accordingly, the mount rubber 63 moves following the operation of the sealed container 61 and the leg piece 62, and suppresses vibration of the sealed container 61.
Further, an opening 62A1 (FIG. 5) larger than the diameter of the bolt 65 is formed in the upper surface portion 62A of the leg piece portion 62. When the sealed container 61 and the leg piece 62 are operated, the leg piece 62 swings so that the edge of the opening 62A1 does not touch the bolt 65, thereby preventing contact between the leg piece 62 and the bolt 65. Thus, an excessive step force is prevented from acting on the bolt 65.
As shown in FIG. 5, the mount rubber 63 includes a through hole 63 </ b> A through which the bolt 65 passes. Further, a protrusion 63 </ b> C that protrudes downward and fits into a hole 55 formed in the bottom plate 10 is provided on the lower surface of the mount rubber 63. The protrusion 63C fits into the hole 55, whereby the mount rubber 63 can be positioned.

As shown in FIG. 4, the regulating member 70 is formed by bending a sheet metal into a substantially U shape, and extends upward from both ends of the substrate portion 71 and a substrate portion (fixed plate portion) 71 extending below the bottom plate 10. Side plate portions (abutting portions) 72 and 73 extending in the horizontal direction. The board portion 71 is welded with a nut 74 into which the bolt 65 is screwed, so that the bolt 65 can be easily tightened from above the leg piece portion 62.
The bottom plate 10 is formed with elongated holes 56 and 57 through which the side plate portions 72 and 73 pass, and the regulating member 70 is inserted from below the bottom plate 10. In the present embodiment, as shown in FIG. 3, the constant speed compressor 11 a is disposed close to one side edge 10 </ b> A of the bottom plate 10 of the outdoor unit 2 </ b> A (2 </ b> B). An opening 10 </ b> B for accessing below 62 is formed. For this reason, the restricting member 70 can be easily inserted into the long holes 56 and 57 from below the bottom plate 10 through the opening 10B, and the attaching operation of the restricting member 70 can be easily performed.

The side plate portions 72 and 73 are bent so as to have substantially the same inner dimensions as the lateral width of the mount rubber 63, and are arranged so as to contact the mount rubber 63 when the sealed container 61 and the leg piece portion 62 vibrate. Has been.
Here, in the constant speed compressors 11a and 11b, since the rotation direction of the electric element is determined, the direction of the rotational torque acting on the sealed container 61 and the leg piece 62 when the electric element rotates is also a constant direction. It is decided. In the present embodiment, rotational torque acts on the sealed container 61 and the leg piece 62 in the X direction in the drawing. For this reason, the side plate portion 72 located in a lower position in the direction in which the rotational torque acts mainly functions as a contact portion, and the one side plate portion 72 is formed higher than the other side plate portion 73 to contact the mount rubber 63. The area is increased.
Thereby, even if an excessive rotational torque acts on the sealed container 61 when the constant speed compressor 11 is started up, the mounting rubber 63 is prevented from being greatly deformed by the side plate portion 72 coming into contact with the mounting rubber 63. Therefore, the stress acting on the pipes connected to the sealed container 61 can be relaxed.

The side plate portion 72 has an upper edge corner portion 72 </ b> A that faces the mount rubber 63 in an R shape. According to this configuration, when the mount rubber 63 is deformed and comes into contact with the side plate portion 72, the contact between the mount rubber 63 and the upper edge corner portion 72A can be weakened, so that the mount rubber 63 is prevented from being damaged. it can.
Furthermore, in this embodiment, since the regulating member 70 is attached from below the bottom plate 10, the strength of the bottom plate 10 is reinforced by the thickness of the substrate portion 71 of the regulating member 70. For this reason, even if a load is applied to the sealed container 61 and the leg piece 62 in the direction in which the sealed container 61 is pulled out (Y direction in FIG. 4), the load resistance in the pulling direction is improved by the regulating member 70.

  According to the present embodiment, the constant speed compressors 11a and 11b are provided in the sealed container 61. The constant speed compressors 11a and 11b accommodate the electric element that is driven at a substantially constant rotational speed and the rotary compression element that is driven by the electric element and compresses the refrigerant. The constant speed compressors 11a and 11b are fixed on the bottom plate 10 with a mounting rubber 63 interposed between a plurality of leg pieces 62 provided in the sealed container 61 and the bottom plate 10 of the outdoor unit 2A. The regulating member 70 is provided with a regulating member 70 that extends to the side of the mounting rubber 63 disposed on the one portion 62 and regulates deformation of the mounting rubber 63 caused by activation of the constant speed compressors 11a and 11b. By receiving the rotational torque acting on the sealed container 61 when the high speed compressors 11a and 11b are activated, the mounting rubber 63 is prevented from being excessively deformed with a simple configuration in which the regulating member 70 is provided. Stress acting on the connected pipes in vessel 61 can be relaxed.

Next, another embodiment will be described.
FIG. 6 is an arrangement configuration diagram of restricting members according to another embodiment. In this embodiment, the same components as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted. Moreover, in this figure, illustration of a sealed container and a leg piece part is abbreviate | omitted.
The restricting member 80 is formed by bending a long sheet metal, and a substrate part (fixed plate part) 81 extending below the bottom plate 10 and the sheet metal connected to the substrate part 81 are bent up and down in a substantially S shape. A bent portion 82 and a fixing portion 83 that is connected to the bent portion 82 and is fixed above the bottom plate 10 are provided.
An opening 59 into which the bent portion 82 of the regulating member 80 is inserted is formed in the bottom plate 10, and the substrate portion 81 is disposed below the bottom plate 10 through the opening 59. For this reason, since the regulating member 80 can be attached from above the bottom plate 10, the attaching operation can be easily performed.
The board portion 81 is welded with a nut 74 into which the bolt 65 is screwed, so that the bolt 65 can be easily tightened from above the leg piece portion 62. Further, the fixing portion 83 is formed with a hole 83A for screwing the regulating member 80 to the bottom plate 10. However, the fixing portion 83 may be fixed to the bottom plate 10 by means such as welding. Moreover, you may perform the screwing by this hole 83A in two or more places.

The bent portion 82 includes a side plate portion 82A extending upward from the rear end of the substrate portion 81. The side plate portion 82A is located on the side of the mount rubber 63 and functions as a contact portion that contacts the mount rubber 63. To do. In this configuration, since the bent portion 82 including the side plate portion 82A is bent up and down in a substantially S shape, the rotational torque generated when the constant speed compressors 11a and 11b are started up via the mount rubber 63. When transmitted to the portion 82A, the bent portion 82 can absorb the rotational torque.
For this reason, the deformation of the mount rubber 63 can be further suppressed, and the stress acting on the pipes connected to the sealed container 61 can be relieved.
In this configuration, since the upper edge 82B of the side plate portion 82A is bent in an arc shape (R shape), the contact between the upper edge 82B and the mount rubber 63 can be weakened. 63 can be prevented from being damaged.

FIG. 7 is an arrangement configuration diagram of restricting members according to another embodiment. In this embodiment, the same components as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted. Moreover, in this figure, illustration of a sealed container and a leg piece part is abbreviate | omitted.
The regulating member 90 is located on the side of the mount rubber 63, a side plate portion (contact portion) 91 that contacts the mount rubber 63, a fixed portion 92 that is fixed above the bottom plate 10, and these side plate portions 91. And the connection part 93 which connects the fixing | fixed part 92 is provided. The connecting portion 93 is bent into a substantially U shape and is disposed below the bottom plate 10 through an opening 59 provided in the bottom plate 10. The nut 74 is welded to the bottom surface of the bottom plate 10. Even in this configuration, the side plate portion 91 has an R-shaped upper edge corner portion 91 </ b> A that faces the mount rubber 63.
In this configuration, the side plate portion 91 can be formed long by arranging the connecting portion 93 below the bottom plate 10, and the rotation that occurs when the constant speed compressors 11 a and 11 b are started up by the side plate portion 91 and the connecting portion 93. Since the torque can be absorbed, the deformation of the mount rubber 63 can be suppressed, and the stress acting on the pipes connected to the sealed container 61 can be relaxed.

As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to this. For example, the shape of the restricting member can be changed as appropriate as long as the restricting member includes a side plate portion positioned on the side of the mount rubber 63.
For example, as shown in FIG. 8, the regulating member 100 is disposed below the bottom plate 10, and includes a substrate portion (fixed plate portion) 101 to which the bolt 65 is fixed, and a side plate portion extending upward from both ends of the substrate portion 101. (Contact portions) 102 and 103 are formed in a substantially U-shape, and the upper edges of these side plate portions (contact portions) 102 and 103 are bent in an arc shape (R shape) and fixed above the bottom plate 10. The fixed parts 104 and 105 to be formed may be formed.
Further, the shape of the restriction member 100 described above is arranged, and as shown in FIG. 9, the restriction member 110 extends one side plate portion 102 upward and projects upward between the side plate portion 102 and the fixing portion 104. It is also possible to adopt a configuration formed by connecting with the substantially U-shaped connecting portion 106.
Furthermore, as shown in FIG. 10, the regulating member 120 may be formed by being provided with a side plate portion 121 and a fixing portion 122 and bent into a substantially L shape. Also in this configuration, the side plate portion 121 has an R-shaped upper edge corner portion 121 </ b> A that faces the mount rubber 63.
Even with these shape regulating members, the side plate portion (abutting portion) located on the side of the mount rubber 63 receives rotational torque acting on the sealed container 61 when the constant speed compressors 11a and 11b are started. The excessive deformation of the mount rubber 63 is prevented, and the stress acting on the pipes connected to the sealed container 61 can be relieved.
In the above-described embodiment, the restricting members are provided on all the leg pieces 62, but the invention is not limited to this, and the restricting members may be provided on at least one leg piece 62.

DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus 2A, 2B Outdoor unit 3A, 3B Indoor unit 10 Bottom plate 11a, 11b Constant speed compressor 12 Inverter compressor 16a, 16b Outdoor heat exchanger 17a, 17b Outdoor expansion valve 31 Suction pipe 32 Discharge pipe 37 Oil pipe 59 Opening 61 Sealed container 62 Leg piece part 63 Mount rubber 64 Flat washer 65 Bolt 70, 80, 90, 100, 110, 120 Restriction member 71, 81, 101 Substrate part (fixing plate part)
72, 82A, 91, 102, 121 Side plate

Claims (6)

  A constant speed compressor containing an electric element that is driven at a substantially constant rotational speed and a rotary compression element that is driven by the electric element and compresses a refrigerant is contained in the hermetic container. In the air conditioner fixed on the bottom plate with an elastic member interposed between the plurality of leg pieces provided on the bottom plate and extending to the side of the elastic member disposed on at least one leg piece. An air conditioning apparatus comprising: a regulating member that regulates deformation of the elastic member accompanying activation of the constant speed compressor.   The air conditioning apparatus according to claim 1, wherein the restriction member includes a contact portion that contacts the elastic member and restricts deformation of the elastic member when the constant speed compressor is started.   The air conditioner according to claim 2, wherein the abutting portion has an R shape at an upper edge corner portion of the abutting portion.   4. The air conditioner according to claim 1, wherein the restriction member includes a fixing plate portion that extends below the bottom plate and is bolted to the leg piece portion. 5.   The air conditioner according to any one of claims 1 to 4, wherein the bottom plate includes an opening that allows the regulating member to be attached from above the bottom plate.   The air conditioner according to any one of claims 1 to 5, wherein the contact portion is provided in a bent portion formed by bending a sheet metal up and down.

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