JP2018127981A - Compressor outer leg and compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further improve strength.SOLUTION: A compressor outer leg 8 is formed by a sheet metal fixed to an external bottom end part in a housing which houses a compression mechanism. The compressor outer leg 8 includes: a plate-like fixing part 8A fixed to the bottom end part of the housing; leg parts 8B which are formed by plate piece members continuing from the fixing part 8A and extending to multiple sides and in which attachment holes 8Ba are formed at extending ends; and reinforcement parts 8C, each of which is formed by a cavity part having a flat surface 8Ca at a lower end part recessed between the fixing part 8A and the attachment hole 8Ba in the leg part 8B.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an outer leg for fixing a compressor and a compressor to which the outer leg is applied.

  As the compressor outer legs, for example, the support legs described in Patent Documents 1 and 2 are made of steel plate, a container support surface that supports the compressor hermetic container at the center, and mounting holes provided at the peripheral protrusions. It is shown to have a reinforcing bent portion formed on the linear peripheral edge portion and a mountain-shaped rib formed on the plate surface between the container support surface and the mounting hole. In Patent Documents 1 and 2, resonance of low-frequency sound is achieved by increasing the bending rigidity and increasing the natural frequency by the chevron-shaped rib formed on the plate surface between the container support surface and the mounting hole. Has been shown to prevent.

Japanese Utility Model Publication No. 63-183484 Japanese Utility Model Publication No. 3-102072

  By the way, when a compressor falls at the time of manufacture or attachment, there is a possibility that an outer leg extending outside the compressor is deformed and cannot function as a leg for fixing the compressor. In Patent Documents 1 and 2, since the bending rigidity is improved for the purpose of increasing the natural frequency, the strength at the time of dropping cannot be improved.

  This invention solves the subject mentioned above, and it aims at providing the compressor outer leg and compressor which can improve an intensity | strength more.

  A compressor outer leg according to an aspect of the present invention is a compressor outer leg made of a sheet metal fixed to an outer bottom end portion of a housing that houses a compression mechanism therein, and is fixed to the bottom end portion of the housing. A plate-shaped fixing portion, a leg portion made of a plate piece member continuously extending from the fixing portion to a plurality of sides, and an attachment hole formed at an extending end, and the fixing portion in the leg portion And a reinforcing part consisting of a recessed part having a flat surface at the lower end part recessed between the mounting hole and a projecting part having a flat surface at the projected upper end part.

  Further, in the compressor outer leg according to one aspect of the present invention, the reinforcing portion includes an inner side surface formed along an outer peripheral shape of the bottom end portion of the housing, and the mounting hole from each end of the inner side surface. It is preferable to have an outer side surface extending toward each.

  Moreover, in the compressor outer leg which concerns on 1 aspect of this invention, it is preferable that the side edge connected between each said leg part is formed in concave shape toward the said housing side.

  Further, in the compressor outer leg according to one aspect of the present invention, the housing houses the compression mechanism therein and the bottom end is closed, and the fixed portion fits the bottom end of the housing. The structure in which the fixing hole is formed may be sufficient.

  In the compressor outer leg according to one aspect of the present invention, the housing houses the compression mechanism therein and the bottom end is open, and the fixed portion closes the bottom end of the housing. The structure which serves as a baseplate may be sufficient.

  A compressor according to an aspect of the present invention includes a compression mechanism, a housing that accommodates the compression mechanism therein, and an outer leg of the compressor that is fixed to an outer bottom end portion of the housing. And comprising.

  According to the present invention, the leg portion of the outer leg is provided with the reinforcing portion in which a flat surface is formed at the lower end portion that is recessed between the fixing portion and the mounting hole or the protruding upper end portion. The housing has a center of gravity of the compressor on or near the center line thereof, and the leg portion extends in an extending direction intersecting (orthogonal to) the center line so as to be away from the center of gravity. The reinforcing portion is provided between the fixing portion that is in the middle of the extending direction of the leg portion and the mounting hole, and a flat surface is formed at the recessed lower end portion or the protruding upper end portion. For this reason, the bending rigidity to the up-down direction where a leg part bends with respect to the extension direction, and the rigidity to the twist direction which a leg part rotates based on the extension direction can be improved. As a result, the strength can be further improved and deformation can be prevented. In addition, by improving the bending rigidity and torsional rigidity of the legs, it is possible to suppress resonance with the vibration of the compressor, and it is possible to reduce noise due to vibration.

FIG. 1 is a side sectional view of a compressor to which a compressor outer leg according to an embodiment of the present invention is applied. FIG. 2 is a perspective view of the compressor outer leg according to the embodiment of the present invention. FIG. 3 is a plan view of the compressor outer leg according to the embodiment of the present invention. FIG. 4 is a side sectional view of the compressor outer leg according to the embodiment of the present invention. FIG. 5 is a side sectional view of another example of the compressor outer leg according to the embodiment of the present invention. FIG. 6 is a side sectional view of a bottom end portion and a compressor outer leg of another example compressor according to the embodiment of the present invention.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

  FIG. 1 is a side sectional view of a compressor to which the compressor outer leg according to the present embodiment is applied.

  In FIG. 1, a scroll compressor is shown as the compressor 1. Moreover, the compressor 1 of this embodiment is interposed in the refrigerant | coolant flow path which circulates a refrigerant | coolant in an air conditioner, a refrigerator, etc. In addition, the compressor in this embodiment is not limited to a scroll compressor, For example, a rotary compressor may be sufficient.

  As shown in FIG. 1, the compressor 1 includes a motor 5 that is a driving unit and a compression mechanism 7 that is driven by the motor 5 inside the housing 3.

  The housing 3 includes a cylindrical housing body 3a extending vertically, a circular bottom 3b that closes the lower end of the housing body 3a, and a circular lid 3c that closes the upper end of the housing body 3a. The whole is a sealed pressure vessel. The housing main body 3a is provided with a suction pipe 9 for introducing a refrigerant into the housing 3 at a side portion thereof. The bottom 3b constitutes the bottom end of the housing 3, and an outer leg (compressor outer leg) 8 is fixed to the outer bottom. The lid 3c is provided with a discharge pipe 11 at the top thereof for discharging the refrigerant compressed by the compression mechanism 7. The housing 3 is provided with a discharge cover 13 between the housing main body 3a and the lid 3c, and the interior of the housing 3 includes a low pressure chamber 3A below the discharge cover 13 and a high pressure chamber 3B above the discharge cover 13. It is divided into and. The discharge cover 13 is formed with an opening hole 13a that connects the low pressure chamber 3A and the high pressure chamber 3B, and a discharge reed valve 13b that opens and closes the opening hole 13a. Further, the bottom in the housing 3 is configured as an oil reservoir in which lubricating oil is accumulated.

  The motor 5 includes a stator 15, a rotor 17, and a rotating shaft 19. The stator 15 is fixed to the inner wall surface at substantially the center in the vertical direction of the housing body 3a. The rotor 17 is provided to be rotatable with respect to the stator 15. The rotating shaft 19 is arranged vertically with respect to the rotor 17. The motor 5 rotates the rotor 17 when power is supplied from the outside of the housing 3, and the rotating shaft 19 rotates together with the rotor 17.

  The rotating shaft 19 is provided with an end protruding above and below the rotor 17, and an axial center CE that extends upward and downward with respect to the housing body 3 a by an upper bearing 21 at the upper end and a lower bearing 23 at the lower end. Is supported rotatably. An eccentric pin 25 is formed at the upper end of the rotating shaft 19 and protrudes upward along an eccentric LE that is offset with respect to the axis CE. The compression mechanism 7 is connected to the upper end of the rotary shaft 19 having the eccentric pin 25. The detailed configuration of the eccentric pin 25 will be described later. Further, the rotary shaft 19 and the eccentric pin 25 are formed with an oil supply hole 27 penetrating vertically. Further, the rotary shaft 19 is provided with a lower end reaching an oil reservoir, and an oil supply pump 29 is provided. The oil supply pump 29 feeds the lubricating oil accumulated in the oil reservoir with the rotation of the rotary shaft 19 into the oil supply hole 27 of the rotary shaft 19.

  The upper bearing 21 penetrates the upper end portion of the rotating shaft 19 and supports the rotating shaft 19 rotatably. The upper bearing 21 has a recess 21 a formed on the upper surface thereof so as to surround the upper end of the penetrated rotary shaft 19. The recess 21 a accommodates a bush assembly 37 described later, and stores the lubricating oil fed by the oil supply pump 29 through the oil supply hole 27. The stored lubricating oil is supplied to the compression mechanism 7.

  Further, the upper bearing 21 is formed with a notch 21b in a part of the outer periphery so as to have a gap with the inner wall surface of the housing main body 3a of the housing 3, and an oil drain hole 21c that connects the notch 21b and the recess 21a is formed. ing. A cover plate 31 is provided below the notch 21 b of the upper bearing 21. The cover plate 31 is provided extending in the vertical direction. The cover plate 31 is formed to bend toward the inner wall surface of the housing body 3a so as to cover the periphery of the notch 21b, and is bent so that the lower end gradually approaches the inner wall surface of the housing body 3a. Has been. And the oil drain hole 21c discharges the lubricating oil excessively stored in the recess 21a to the outer periphery of the upper bearing 21 from the notch 21b. The cover plate 31 receives the lubricating oil discharged from the notch 21b and guides it toward the inner wall surface of the housing body 3a. The lubricating oil guided toward the inner wall surface by the cover plate 31 is returned to the oil reservoir at the bottom in the housing 3 along the inner wall surface by the cover plate 31.

  The compression mechanism 7 is disposed in the housing 3 in the low pressure chamber 3A below the discharge cover 13 and above the upper bearing 21, and includes a fixed scroll 33, a turning scroll 35, a bush assembly 37, It has.

  In the fixed scroll 33, a spiral fixed side wrap 33 b is formed on the inner surface (the lower surface in FIG. 1) of the fixed side end plate 33 a fixed inside the housing 3. The fixed-side end plate 33a has a discharge hole 33c formed at the center thereof.

  The orbiting scroll 35 is formed with a spiral movable side wrap 35b on the inner surface (upper surface in FIG. 1) of the movable side end plate 35a facing the inner surface of the fixed side end plate 33a of the fixed scroll 33. Then, the movable side wrap 35b of the orbiting scroll 35 and the fixed side wrap 33b of the fixed scroll 33 are engaged with each other with the phases shifted from each other, so that the compression is defined by the end plates 33a and 35a and the wraps 33b and 35b. A chamber is formed. The orbiting scroll 35 has a cylindrical boss 35c to which the eccentric pin 25 of the rotary shaft 19 is connected to the outer surface (the lower surface in FIG. 1) of the movable side end plate 35a and the eccentric rotation of the eccentric pin 25 is transmitted. Is formed. Further, the orbiting scroll 35 is prevented from rotating based on the eccentric rotation of the eccentric pin 25 by a rotation prevention mechanism 39 such as a well-known Oldham link arranged between the outer surface of the movable side end plate 35a and the upper bearing 21. While turning around.

  The bush assembly 37 is accommodated in the concave portion 21 a of the upper bearing 21 described above, and is interposed between the eccentric pin 25 of the rotary shaft 19 and the boss 35 c of the orbiting scroll 35, and controls the rotational movement of the eccentric pin 25 of the orbiting scroll 35. It is transmitted as a swivel movement. Further, the bush assembly 37 is provided so as to be slidable in the radial direction of the eccentric pin 25 in order to maintain the meshing between the movable side wrap 35 b of the orbiting scroll 35 and the fixed side wrap 33 b of the fixed scroll 33. The detailed configuration of the bush assembly 37 will be described later.

  In this compression mechanism 7, the low-pressure refrigerant introduced into the low-pressure chamber 3 </ b> A in the housing 3 through the suction pipe 9 is compressed in the compression chamber between the fixed scroll 33 and the orbiting scroll 35 when the orbiting scroll 35 revolves. Compressed while inhaled. The compressed high-pressure refrigerant is discharged from the discharge hole 33c of the fixed scroll 33 to the outer surface side of the fixed-side end plate 33a, opens the discharge reed valve 13b of the discharge cover 13 by its own pressure, and opens from the opening hole 13a to the high-pressure chamber. 3B and discharged to the outside of the housing 3 through the discharge pipe 11.

  Hereinafter, the details of the outer leg (compressor outer leg) 8 will be described. FIG. 2 is a perspective view of the compressor outer leg according to the present embodiment. FIG. 3 is a plan view of the compressor outer leg according to the present embodiment. FIG. 4 is a side sectional view of the compressor outer leg according to the present embodiment.

  As described above, the outer leg 8 is fixed to the bottom surface of the bottom portion 3b at the bottom portion 3b forming the bottom end portion of the housing 3. The outer leg 8 is made of sheet metal and includes a fixed portion 8A, a leg portion 8B, and a reinforcing portion 8C.

  The fixing portion 8A is a plate-like member that constitutes the central portion of the outer leg 8, and is fixed by welding or the like so as to be attached to the bottom surface of the bottom portion 3b of the housing 3. The bottom portion 3b of the housing 3 is formed in a saddle shape having a curved shape on the outside and the fixing portion 8A is curved and formed in a curved shape in the downward direction along the curved shape. The fixing portion 8 </ b> A is formed with a fixing hole 8 </ b> Aa into which the bent bottom of the bottom portion 3 b of the housing 3 is fitted. The fixing hole 8Aa can be firmly fixed to the bottom 3b by fitting the bent bottom of the bottom 3b of the housing 3 and contributes to the weight reduction of the outer leg 8.

  The leg portion 8B is composed of a plate piece member that continuously extends from the fixed portion 8A to a plurality of sides. In the present embodiment, the leg portion 8B is formed to extend from the fixed portion 8A laterally in four directions. Here, the extending side (also referred to as extending direction) of the leg portion 8B intersects the axis CE, which is the center line of the cylindrical housing 3 (housing main body 3a, bottom portion 3b, lid portion 3c) ( In this embodiment, the direction is orthogonal. The leg portion 8B has a mounting hole 8Ba formed at its extended end. The mounting hole 8Ba is used for mounting to an outdoor unit such as an air conditioner or a refrigerator. Specifically, although not clearly shown in the drawing, a bush is provided on the bottom surface of the leg portion 8B, and is attached to the substrate of the outdoor unit on the fixed side by means of a mounting bolt that penetrates the bush and the mounting hole 8Ba. The bush is made of rubber or the like and functions as an anti-vibration rubber that prevents the vibration of the compressor 1 from being transmitted to the outdoor unit side.

  The reinforcing portion 8C is formed between the fixing portion 8A and the mounting hole 8Ba in the leg portion 8B. The reinforcing portion 8 </ b> C is formed as a recessed portion that is recessed downward in FIGS. 1 to 4. The recessed portion which is the reinforcing portion 8C is formed by pressing a sheet metal constituting the outer leg 8 downward. As for the hollow part which is the reinforcement part 8C, plane 8Ca is formed in the lower end part. In addition, the recessed portion that is the reinforcing portion 8C has an inner side surface 8Cb formed in an arc shape along the outer peripheral shape (circular shape) of the bottom portion 3b that forms the bottom end portion of the housing 3, and the inner side surface 8Cb. An outer surface 8Cc extending from each end toward the mounting hole 8Ba. That is, the recessed portion which is the reinforcing portion 8C has a flat surface 8Ca formed at the recessed bottom and an inner side surface 8Cb along the outer peripheral shape of the bottom portion 3b of the housing 3 on the outer peripheral fixed portion 8A side. An outer surface 8Cc is formed from each end of the side surface 8Cb toward the mounting hole 8Ba. And the recessed part which is the reinforcement part 8C has the outer periphery formed in the substantially triangular shape by planar view by inner surface 8Cb and each outer surface 8Cc.

  As described above, the outer leg 8 of the present embodiment includes the reinforcing portion 8C in which the flat surface 8Ca is formed at the lower end portion of the leg portion 8B that is recessed between the fixing portion 8A and the mounting hole 8Ba. The cylindrical housing 3 (housing main body 3a, bottom portion 3b, lid portion 3c) has a center of gravity of the compressor 1 on the axis CE or very close to the center line CE, and the leg portion 8B has the center of gravity. It extends in the extending direction H (see FIGS. 3 and 4) intersecting (orthogonal) the axis CE so as to be away from the center. The reinforcing portion 8C is provided between the fixing portion 8A and the mounting hole 8Ba in the middle of the extending direction of the leg portion 8B, and a flat surface 8Ca is formed at the recessed lower end portion. For this reason, the leg portion is based on the bending rigidity in the vertical direction in which the leg portion 8B is bent with respect to the extending direction H as shown by the arrow V in FIG. 4 and the extending direction H as shown by the arrow R in FIG. The rigidity in the twist direction in which 8B rotates can be improved. As a result, the strength can be further improved and deformation can be prevented.

  In addition, by improving the bending rigidity and torsional rigidity of the leg portion 8B, it is possible to suppress resonance with the vibration of the compressor 1, and it is possible to reduce noise due to vibration.

  In addition, it is more preferable that the plane 8Ca is provided on the inner bottom surface and the outer bottom surface of the recess that is the reinforcing portion 8C in order to improve rigidity, but the plane 8Ca is the inner portion of the recess that is the reinforcing portion 8C. Even if it is provided on at least one of the bottom surface and the outer bottom surface, the rigidity can be improved.

  Further, in the outer leg 8 of the present embodiment, the reinforcing portion 8C includes an inner side surface 8Cb formed along the outer peripheral shape of the bottom portion 3b that is the bottom end portion of the housing 3, and mounting holes from each end of the inner side surface 8Cb. And an outer surface 8Cc extending toward 8Ba. For this reason, in addition to the effect by the plane 8Ca, the bending rigidity and torsional rigidity of the leg portion 8B can be further improved, and the strength can be further improved to further prevent deformation.

  The inner side surface 8Cb and the outer side surface 8Cc are more preferably provided on the inner side surface and the outer side surface of the recess that is the reinforcing portion 8C in order to improve rigidity, but the inner side surface 8Cb and the outer side surface 8Cc are Even if it is provided on at least one of the inner surface and the outer surface inner bottom of the recess that is the reinforcing portion 8C, the rigidity can be improved.

  Moreover, in the outer leg 8 of this embodiment, as shown in FIG. 2 and FIG. 3, the side edge 8D connected between each leg part 8B is formed in concave shape toward the housing 3 side. That is, the outer leg 8 is formed by bending and connecting the side edges 8D between the leg portions 8B. For this reason, compared with the structure which connects the side edge 8D between each leg part 8B with a straight line, the area which becomes a flat shape narrows, The acceleration which a vibration is transmitted to an up-down direction can be restrained low. As a result, noise due to vibration can be further reduced. In addition, in the outer leg 8 of this embodiment, since the bent portion 8Da is formed by bending the side edge 8D between the leg portions 8B downward, the rigidity can be increased and the bent portion 8Da can be curved. It is possible to prevent a decrease in rigidity due to the narrow area of the formed flat shape.

  In the above-described embodiment, the fixing portion 8A is formed in a downward curved shape along the curved shape of the bottom 3b of the housing 3. In addition, the side edge 8D between the leg portions 8B has a bent portion 8Da bent downward. Further, the reinforcing portion 8C is formed by pressing downward as a recess. Thus, since all the outer legs 8 of the above-described embodiment can be formed by processing from above to below, the workability is good.

  FIG. 5 is a side sectional view of another example of the compressor outer leg according to the present embodiment. In FIG. 5, the same components as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.

  In the outer leg 8 shown in FIG. 5, a reinforcing portion 8C formed between the fixing portion 8A and the mounting hole 8Ba is formed as a protruding portion protruding upward. The projecting portion that is the reinforcing portion 8C is formed by pressing the sheet metal constituting the outer leg 8 upside down and pressing it downward. The protrusion, which is the reinforcing portion 8C, has a flat surface 8Ca formed at its upper end. Further, the projecting portion which is the reinforcing portion 8C has an inner side surface 8Cb formed in an arc shape along the outer peripheral shape (circular shape) of the bottom portion 3b forming the bottom end portion of the housing 3 on the outer periphery, and the inner side surface 8Cb. An outer surface 8Cc extending from each end toward the mounting hole 8Ba. That is, the protruding portion which is the reinforcing portion 8C has a flat surface 8Ca formed at the protruding top portion, and an inner side surface 8Cb along the outer peripheral shape of the bottom portion 3b of the housing 3 formed on the outer peripheral fixed portion 8A side. An outer surface 8Cc is formed from each end of the side surface 8Cb toward the mounting hole 8Ba. And the protrusion which is the reinforcement part 8C is formed in the substantially triangular shape in outer periphery by the inner surface 8Cb and each outer surface 8Cc by planar view.

  Thus, the outer leg 8 of this embodiment may be provided with the reinforcement part 8C by which the plane 8Ca was formed in the upper end part which protruded between 8 A of fixing parts and attachment hole 8Ba in the leg part 8B. The cylindrical housing 3 (housing main body 3a, bottom portion 3b, lid portion 3c) has a center of gravity of the compressor 1 on the axis CE or very close to the center line CE, and the leg portion 8B has the center of gravity. It extends in the extending direction H (see FIGS. 3 and 4) intersecting (orthogonal) the axis CE so as to be away from the center. The reinforcing portion 8C is provided between the fixing portion 8A and the mounting hole 8Ba in the middle of the extending direction of the leg portion 8B, and a flat surface 8Ca is formed at the protruding upper end portion. Therefore, the leg portion is based on the bending rigidity in the vertical direction in which the leg portion 8B is bent with respect to the extending direction H as shown by the arrow V in FIG. 5 and the extending direction H as shown by the arrow R in FIG. The rigidity in the twist direction in which 8B rotates can be improved. As a result, the strength can be further improved and deformation can be prevented.

  In addition, by improving the bending rigidity and torsional rigidity of the leg portion 8B, it is possible to suppress resonance with the vibration of the compressor 1, and it is possible to reduce noise due to vibration.

  The flat surface 8Ca is more preferably provided on the inner bottom surface and the outer bottom surface of the protrusion that is the reinforcing portion 8C in order to improve the rigidity. However, the flat surface 8Ca is the inner portion of the recessed portion that is the reinforcing portion 8C. Even if it is provided on at least one of the bottom surface and the outer bottom surface, the rigidity can be improved.

  Further, in the outer leg 8 of the present embodiment, the reinforcing portion 8C includes an inner side surface 8Cb formed along the outer peripheral shape of the bottom portion 3b that is the bottom end portion of the housing 3, and mounting holes from each end of the inner side surface 8Cb. And an outer surface 8Cc extending toward 8Ba. For this reason, in addition to the effect by the plane 8Ca, the bending rigidity and torsional rigidity of the leg portion 8B can be further improved, and the strength can be further improved to further prevent deformation.

  The inner side surface 8Cb and the outer side surface 8Cc are more preferably provided on the inner side surface and the outer side surface of the protrusion, which is the reinforcing portion 8C, in order to improve rigidity, but the inner side surface 8Cb and the outer side surface 8Cc are Even if it is provided on at least one of the inner side surface and the inner bottom surface of the outer side surface of the protrusion which is the reinforcing portion 8C, the rigidity can be improved.

  FIG. 6 is a side cross-sectional view of a bottom end portion and a compressor outer leg of another example compressor according to the present embodiment. In FIG. 6, the same components as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.

  The compressor 1 of the other example shown in FIG. 6 does not have the bottom part 3b mentioned above in the housing 3, but the outer leg 8 is being fixed to the lower end part of the housing main body 3a by welding. And since the outer leg 8 closes the lower end of the housing body 3a and the housing 3 is a sealed pressure vessel as a whole, the fixing portion 8A does not have the fixing hole 8Aa described above.

  In such a compressor, the housing 3 accommodates the compression mechanism 7 (not shown) inside, the bottom end of the housing body 3a is opened, and the fixing portion 8A is formed on the housing 3 in the housing 3. It also serves as a bottom plate that closes the bottom end.

  Even in such a compressor of another example, the above-described outer leg 8 can be provided. Then, the outer legs 8 allow the leg portions 8B to bend in the up-down direction with respect to the extending direction H as shown by the arrow V in FIGS. 4 and 5, and the extension as shown by the arrow R in FIG. The rigidity in the twisting direction in which the leg portion 8B rotates based on the exit direction H can be improved. As a result, the strength can be further improved and deformation can be prevented. In addition, by improving the bending rigidity and torsional rigidity of the leg portion 8B, it is possible to suppress resonance with the vibration of the compressor, and it is possible to reduce noise due to vibration.

  Moreover, in the outer leg 8 applied to the compressor of another example, as illustrated in FIGS. 2 and 3, the side edge 8D connected between the leg portions 8B is concavely curved toward the housing 3 side. Is formed. That is, the outer leg 8 is formed by bending and connecting the side edges 8D between the leg portions 8B. For this reason, compared with the structure which connects the side edge 8D between each leg part 8B with a straight line, the area which becomes a flat shape narrows, The acceleration which a vibration is transmitted to an up-down direction can be restrained low. As a result, noise due to vibration can be further reduced. In addition, in the outer leg 8 of this embodiment, since the bent portion 8Da is formed by bending the side edge 8D between the leg portions 8B downward, the rigidity can be increased and the bent portion 8Da can be curved. It is possible to prevent a decrease in rigidity due to the narrow area of the formed flat shape.

DESCRIPTION OF SYMBOLS 1 Compressor 3 Housing 3a Housing main body 3b Bottom part 3c Cover part 7 Compression mechanism 8 Outer leg (compressor outer leg)
8A fixing portion 8Aa fixing hole 8B leg portion 8Ba mounting hole 8C reinforcing portion 8Ca plane 8Cb inner side surface 8Cc outer side surface 8D side edge 8Da bent portion

Claims (6)

A compressor outer leg made of a sheet metal fixed to an outer bottom end of a housing that houses the compression mechanism;
A plate-like fixing part fixed to the bottom end of the housing;
A leg portion formed of a plate piece member continuously extending from the fixing portion to a plurality of sides and having a mounting hole formed at the extending end;
A reinforcing part comprising a recessed part having a flat surface at the lower end part recessed between the fixing part and the mounting hole in the leg part or a projecting part having a flat surface at the projected upper part;
Compressor outer leg with.   The reinforcing portion includes an inner surface formed along an outer peripheral shape of a bottom end portion of the housing, and an outer surface extending from each end of the inner surface toward the mounting hole. The compressor outer leg according to 1.   The compressor outer leg according to claim 1 or 2, wherein a side edge connected between the legs is formed in a concave shape toward the housing.   4. The housing according to claim 1, wherein the housing has a compression mechanism housed therein and a bottom end portion thereof is closed, and the fixing portion is formed with a fixing hole into which the bottom end portion of the housing is fitted. The compressor outer leg according to one.   The said housing accommodates the compression mechanism inside, and the bottom end part is open | released, The said fixing | fixed part serves as the baseplate which obstruct | occludes the bottom end part of the said housing. Compressor outer leg as described in. A compression mechanism;
A housing that houses the compression mechanism therein;
The compressor outer leg according to any one of claims 1 to 5, which is fixed to an outer bottom end of the housing;
A compressor comprising:

Images