JP3210197B2 - Hermetic scroll compressor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic scroll compressor, and more particularly to a hermetic scroll compressor, in which the sealing performance is reduced due to deformation of a frame when the scroll compression mechanism is fastened to a hermetic container.
The present invention relates to improvement of performance deterioration and reliability deterioration such as one-side contact of a sliding portion.

[0002]

2. Description of the Related Art A closed scroll compressor is described in, for example, Japanese Patent Application Laid-Open No. Hei 2-301687. The compression mechanism, which consists of an orbiting scroll, a fixed scroll, a drive shaft that is a crankshaft driven by an electric motor, a frame, and an anti-rotation mechanism, has a ring-shaped body outer peripheral surface provided on both axial sides of the frame on the inner wall of the container. The inside of the sealed container is partitioned into a left space and a right space.

[0003] Refrigerant gas compressed due to a reduction in the volume between the wraps of the orbiting scroll and the fixed scroll is discharged to the left space from a discharge hole at the center of the wrap of the fixed scroll, and is formed by the outer peripheral surface of the frame and the inner wall of the container. After passing through the gas passage and flowing to the left of the motor, and after passing through the motor to cool the motor, it is guided to the right space through a gas passage hole provided in a cover disposed on the right of the motor.

[0004] The lubricating oil contained in the refrigerant gas separates when it collides with the inner wall of the closed vessel in the middle of the gas flow path, and gently drops into the oil sump below the compressor.

The frame fixed to the container includes a bearing for supporting the drive shaft, a seal bearing for sealing a pressure difference between the back pressure chamber and the motor, a pedestal for sandwiching the orbiting scroll with the fixed scroll, and a rotation. It has a stationary pedestal having a key groove in which a key of the Oldham ring, which is a prevention mechanism, slides, a back pressure chamber for applying an appropriate pressing force to the orbiting scroll, and a fastening portion of the motor stator.

[0006]

In the above-mentioned prior art, the compression mechanism section press-fits the outer peripheral surfaces of the ring-shaped body provided on both sides in the axial direction of the frame to the inner wall of the container, so that the rigidity of the closed container is increased. On the other hand, when the rigidity of the frame is small, or when the press-in allowance is large, the deformation of the frame due to press-fitting is large, and as shown in FIG. 11, when the fastening surface with the fixed scroll 6 is changed from 8h to 8h1, Accordingly, the base plate 6a of the fixed scroll 6 is deformed into a wavy shape, a middle convex shape, or a middle concave shape. Since the sliding surface of the fixed scroll 6e is in a single contact state, the seal length becomes insufficient, and the fixed scroll 6
Gas leaks into the low-pressure space 6f communicating with the suction hole of the above, and there is a problem of performance degradation.

[0007] With respect to the above problem, even if the pressure in the back pressure chamber 8a is increased, the one-sided contact of the sliding surface cannot be solved. ,
There has not been a fundamental improvement in reliability reduction.

The present invention has been made in view of the above problems, and when the compression mechanism and the closed container are fastened, the deformation of the fastening surface with the fixed scroll, in particular, the deformation of the frame greatly depends on the performance. The purpose is to get rid of it.

[0009]

In order to achieve the above object, according to the present invention, the compression mechanism is supported on both sides in the axial direction with respect to the position of the center of gravity of the scroll compression mechanism. The body of the frame of the compression mechanism, which is located on the fastening surface between the frame and the fixed scroll, is completed by press-fitting or welding to the inner surface of the sealed container with the legs or the ring-shaped body outer surface of the frame. A gap was provided between the outer peripheral surface and the inner surface of the closed container.

[0010]

By providing a gap between the outer peripheral surface of the frame of the compression mechanism located on the fastening surface of the frame and the fixed scroll and the inner surface of the sealed container, the outer peripheral surface of the frame located on the fastening surface of the fixed scroll is press-fitted. Arising from
The deformation of the fastening surface is eliminated, and accordingly, the base plate of the fixed scroll is not deformed into a wavy shape, a convex shape, or a concave shape. Since the above deformation is eliminated, the sliding surface between the fixed scroll end plate and the orbiting scroll end plate does not slide with the sealing length being insufficient, and the gas is leaked from the back pressure chamber. Performance degradation, and reliability degradation due to one-sided operation is improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a sectional view showing the overall structure of a hermetic scroll compressor according to one embodiment of the present invention. 2 and 3 are partially enlarged views of the compression mechanism 2 according to the present invention.

In FIG. 1, a compression mechanism 2 is disposed on the left side in a closed container 1 and an electric motor 3 for driving it is disposed on the right side, and an oil sump 4 is formed below the closed container 1. Have been.

The compression mechanism 2 comprises a orbiting scroll 5, a fixed scroll 6, a drive shaft 7 which is a crankshaft driven by the electric motor 3, a frame 8, and a rotation preventing mechanism 9.

The orbiting scroll 5 has a spiral wrap 5b on a base plate 5a. A bearing 10 into which the crank pin portion 7a of the drive shaft 7 is inserted is provided on the back surface of the base plate 5a, and the base plate 5a has a uniform lap 5b space in communication with the back pressure chamber 8a. A pressure hole 5c is provided. Further, a key groove 5d in which a key 9a of an Oldham ring 9 serving as a rotation preventing mechanism slides is provided on the back surface of the base plate 5a.

The fixed scroll 6 also has a spiral wrap 6b on a base plate 6a. In addition, a suction hole 6c is provided in the outer peripheral portion of the wrap, and a discharge hole 6d is provided in the central portion of the wrap. The frame 8 fixed to the closed casing 1 includes a bearing 11 for supporting the drive shaft 7, a seal bearing 12 for sealing a pressure difference between the back pressure chamber 8 a and the electric motor 3, and the orbiting scroll 5 and the fixed scroll 6. A stationary base 8d having a key groove 8c in which a key 9a of an Oldham ring 9 as a rotation preventing mechanism slides, a back pressure chamber 8a for applying an appropriate pressing force to the orbiting scroll 5, and an electric motor 3. It has a fastening portion 8e of the stator 3a.

The orbiting scroll 5 and the fixed scroll 6
The end surfaces (sliding surfaces) 5e and 6e of the first and second surfaces serve as sealing surfaces for the back pressure chamber 8a and the low-pressure space 6f communicating with the suction hole 6c of the fixed scroll 6.

Further, the outer peripheral surfaces 8f, 8
g and 8m are inserted along the inner surface of the closed container 1, and the outer surface of the foot 8m provided on the compression mechanism side and the outer surface of the foot 8g provided on the electric motor 3 side are completely fastened to the inner surface of the closed container 1 by press-fitting. In the present invention, the term “fastening” refers to fixing opposed members by known fixing means such as press-fitting, welding, and bonding. The trunk outer surface 8g is a foot 8g shown in FIG.
1 or a ring-shaped portion 8g2 shown in FIG. 9B, which is completely fastened to the inner surface of the closed container 1 by press fitting or the like. The outer peripheral surface 8m of the body is configured similarly to 8g.

The center of gravity of the electric motor 3, the scroll compression mechanism including the side cover, and the outer peripheral surface 8 of the frame 8
g, 8 m.

On the other hand, the ring-shaped body outer peripheral surface 8f is
The outer peripheral surface 8f of the trunk portion and the closed container 1 are configured as shown in FIG.
A gap 8p is provided between the inner space and the left side space, and the left space 13 and the right space 14 are partitioned with the gap 8p.

With respect to the above-mentioned gap, the amount of water flowing from the left space 13 directly to the right space 14 through the gap between the outer peripheral surface 8f and the inner wall of the airtight container 1 is limited. Most of the gas discharged from 6d into the left space 13 flows to the left of the motor 3 through the gas passage 15 communicating to the left of the motor 3 formed by the outer peripheral surface 8f of the frame and the inner wall of the closed casing 1 and to the left. After passing through the electric motor 3 and cooling the electric motor 3, the cover 1 disposed on the right side of the electric motor 3
The flow path resistance of the gap is set to be larger than the flow path resistance of the gas path 15 so that the gas flow path is guided to the right space 14 through the gas path hole 16 a provided in the nozzle 6.

The above-mentioned gap is also taken into consideration for the amount of thermal deformation of the inner diameter of the closed casing 1 when welding the casing 1a of the closed casing 1 and the cap 1b for closing the casing 1a from the left. FIG. 2 is an enlarged view of the outer peripheral surface 8f of the frame.
From the side closer to the weld fastening portion between the b and the closed vessel body 1a, a slope may be provided or a step may be provided as shown in FIG.

The orbiting scroll 5 and the fixed scroll 6 are combined with the wrap facing inward, and the fixed scroll 6 and the pedestal 8b of the frame 8 sandwich the base plate 5a of the orbiting scroll 5. Back of orbiting scroll 5 and frame 8
Between them, a rotation preventing mechanism 9 for preventing rotation of the orbiting scroll 5 is arranged.

The Oldham ring 9, which is a rotation preventing mechanism 9, is composed of a ring 9b and a key 9a, and is sandwiched between the orbiting scroll 5 and the stationary base 8d of the frame 8, and the key 9a of the Oldham ring 9 is a orbiting scroll. 5 and a key groove 8c provided on a stationary base 8d of the frame 8.

The drive shaft 7 has a crankpin portion 7 a supported at one end by a bearing 10 provided on the orbiting scroll 5, and the other end is supported by a bearing 17 provided on a cover 16. In the drive shaft 7, an oil supply hole 7b is provided on the rotation center of the shaft, and one end of the oil supply hole 7b is opened on the end face of the crank pin portion 7a, and the other end is provided on the cover 16 at the other end. 17 is open at the end face. Also,
In the bearing 12, a radial oil supply hole 7 communicating with the oil supply hole 7b is provided.
c.

The cover 16 is a bearing 1 for supporting the drive shaft 7.
7. An oil supply pipe 18 for guiding lubricating oil from the oil sump 4 is supported and fastened to the frame 8 by bolts 19.

The motor 3 comprises a stator 3a and a rotor 3b. The stator 3a is fastened to a fastening portion 8e of the frame 8, and the rotor 3b is fixed to the drive shaft 7.

The closed container 1 comprises a casing 1a for supporting the frame 8 and caps 1b and 1c on both sides. The casing 1a is provided with a discharge port 20 and a reed 23, a suction port 21 on the cap 1b, and a power supply on the cap 1c. A connection port 22 is provided.

Next, the operation of the scroll compressor will be described. When the drive shaft 7 is rotated by the electric motor 3, the drive shaft 7
The orbiting scroll 5 orbits without rotating by the rotation of the crank pin portion 7a and the action of the rotation preventing mechanism. As a result, the space formed by the wrap and the base plate of the orbiting scroll 5 and the fixed scroll 6 decreases its volume while moving to the center, compresses the gas sucked from the suction connection port 21, and discharges the gas from the discharge port of the fixed scroll 6. Discharged from 6d. The discharged refrigerant and lubricating oil gas are supplied to the closed container 1
Collides with the inner wall of the cap 1b. Further, a gas passage 15 formed by the outer peripheral surface 8f of the frame and the inner wall of the closed container 1 is formed.
Flows through the motor 3 to the left, and after passing through the motor 3 to cool the motor 3, the cover 1 disposed to the right of the motor 3
6 and further passes through the gas passage hole 16a and collides with the inner wall of the cap 1c of the sealed container 1. The refrigerant gas containing the lubricating oil that has collided with the inner walls of the closed container 1 and the cover 16 is separated into the lubricating oil and the gas, and the lubricating oil adheres to the inner wall and gently drops into the oil sump 4 below the compressor. The lubricating oil dropped below the left space 13 is the left space 13 and the right space 1
Oil return hole 8k provided in frame 8 due to the pressure difference between
To the oil sump 4 below the right space 14.

On the other hand, the gas is guided to the outside of the compressor from the discharge connection port 20 provided in the casing 1a.

When the scroll performs a compressing action, a force is required to separate the orbiting scroll 5 and the fixed scroll 6. To prevent this, the pressure in the back pressure chamber 8a on the back of the orbiting scroll 5 is reduced. The pressure equalizing hole 5c keeps the intermediate pressure lower than the discharge pressure and higher than the suction pressure.
The method of applying the intermediate pressure is disclosed in JP-A-53-119412, JP-A-55-37520, and the like, and a detailed description thereof will be omitted. As described above, the inside of the closed container 1 is at the discharge pressure.

As a result, the bearing 10 of the orbiting scroll 5
Since the end face of the bearing 11 of the frame 8 on the back pressure chamber 8a side is maintained at an intermediate pressure, the lubricating oil of the oil sump 4 passes through an oil supply pipe 18 provided in the cover 16 and the crank pin portion 7 of the drive shaft 7.
The oil is guided to the end of the oil supply hole 7b on the side a by the differential pressure between the discharge pressure and the intermediate pressure, whereby the oil is supplied to the bearing 10 provided on the orbiting scroll 5. Further, each sliding portion including the bearings 11 and 12 provided in the frame 8 is supplied with oil through an oil supply hole 7c in the drive shaft 7. In addition, as lubricating oil supply means,
Although described as differential pressure oiling between the discharge pressure and the intermediate pressure, other oiling means, for example, an oil pump may be used.

As described above, the body outer peripheral surface 8 of the frame located on the fastening surface 8h between the frame 8 and the fixed scroll 6
A gap is provided between the f and the inner wall of the sealed container 1. A fastening surface 8h with the fixed scroll and a pedestal 8b for sandwiching the orbiting scroll 5 with the base plate 6a of the fixed scroll 6 are provided on the outer peripheral surface 8f of the frame. Since no large external force acts, the influence of the deformation is eliminated. Therefore, the base plate 6a of the fixed scroll 6 does not deform into a wavy shape, a convex or concave shape, the flatness of the end plate surface 6e of the fixed scroll 6 is maintained with accuracy during machining, and the end plate of the orbiting scroll 5 is maintained. The sliding surface with the surface 5e is in a one-sided contact state, the sliding is not performed with the seal length being insufficient, the performance deterioration due to gas leakage from the back pressure chamber 8a is improved, and the one-sided operation is performed. Improvement in reliability reduction is achieved.

Next, another embodiment will be described with reference to FIG.

FIG. 4 is a sectional view of the entire structure of the hermetic scroll compressor. The frame 8 is provided with feet 8n at the center of gravity of the scroll compression mechanism comprising the compression mechanism 2, the electric motor 3 and the side cover 16. A ring-shaped body outer surface 8f located on the fastening surface 8h between the outer surface of the foot 8n and the fixed scroll on the compression mechanism side is inserted along the inner surface of the closed container, and the outer surface of the foot 8n is The inside of the closed container 1 is press-fitted and fastened, and a gap is provided between the outer peripheral surface 8f of the frame located at the fastening surface 8h with the fixed scroll and the inside surface of the closed container.

With the structure shown in FIG. 4, performance and reliability are improved with the same effects as described with reference to FIG.

Another embodiment will be described with reference to FIGS.

FIG. 5A is an enlarged view of the outer peripheral surface 8f of the frame, and a rubber material 30, which is an elastic material having a smaller rigidity than the frame 8, is inserted into a gap between the outer peripheral surface 8f of the frame and the inner surface of the closed casing 1. are doing. Since the rubber material to be inserted is less rigid than the frame, the frame does not deform enough to affect the performance upon insertion. Further, according to the embodiment of FIG. 4, since the inserted elastic material reduces the noise generated between the frame and the casing due to the vibration at the time of starting that applies a large torque, the performance and the reliability can be improved.

The rubber material to be inserted may be an elastic material such as a plastic material, or a rigid copper pipe, a thin iron pipe, or a corrugated metal material.

The above-mentioned elastic material such as rubber or plastic material, and a rigid copper pipe, a thin iron pipe, or a corrugated metal material are inserted all around the gap between the outer peripheral surface 8f of the frame and the inner surface of the closed casing 1. Or a plurality of members may be arranged.

Further, insertion of an elastic material such as rubber or plastic material and a rigid copper pipe, a thin iron pipe, or a corrugated metal material into the gap between the outer peripheral surface 8f of the frame and the inner surface of the closed container 1 is shown in FIG. As shown in (a), a structure that fits into a concave groove formed on the outer peripheral surface 8f of the frame may be used.
Alternatively, as shown in FIG. 5B, a structure may be employed in which the insertion is performed from the left side of the figure.

As another embodiment, FIG. 6A is an enlarged view of the outer peripheral surface 8f of the frame, and a spring steel 31 such as a clip (FIG. 6) is provided between the outer peripheral surface 8f of the frame and the inner surface of the closed container 1.
(B)) are arranged and inserted in a plurality. In the embodiment shown in FIG. 6, the protrusion 31a provided on the side surface of the clip fits into the groove 8i formed on the outer peripheral surface 8f of the frame so that the clip does not come off in the axial direction. According to the embodiment of FIG. 5, since the inserted clip relaxes the sound at the time of starting with a large torque, both performance and reliability can be improved.

As another embodiment, FIG. 7 is an enlarged view of the outer peripheral surface 8f of the frame.
A gap is provided on the inner surface, the outer peripheral surface 8f of the frame and the closed container 1 are fastened by a support member of a pin 33, and the pin 33 is fastened to the closed container by welding.

As another embodiment, FIG. 8 is an enlarged view of the outer peripheral surface 8f of the frame, in which a ring-shaped projection 8j is provided on the outer peripheral surface of the frame of the compression mechanism located on the fastening surface between the frame and the fixed scroll. The outer peripheral surface of the frame is fixed to the sealing device with an intermediate fit. The ring-shaped protrusion 8j may be one or a plurality of protrusions on the outer peripheral surface of the frame.

The projection 8j provided on the outer peripheral surface of the frame is formed to be smaller than the rigidity of the entire frame, and the projection 8j is crushed when the closed container 1 is inserted into the frame.
The frame is not greatly deformed due to the crushing of the protruding portion, and performs the same function as the supporting member with respect to the sound at the time of starting, so that both performance and reliability can be improved.

In the above embodiment, the so-called horizontal scroll compressor in which the compression mechanism and the drive unit are horizontally arranged has been described. However, the compression mechanism and the drive unit are vertically arranged.
The present invention is also applicable to a so-called vertical scroll compressor.

[0047]

As described above, according to the present invention, by providing a gap between the outer peripheral surface of the body of the frame of the compression mechanism and the inner surface of the airtight container, which is located at the fastening surface between the frame and the fixed scroll, the fastening surface of the fixed scroll is provided. The deformation of the fastening surface caused by press-fitting the outer peripheral surface of the fixed scroll is eliminated, and accordingly, the base plate of the fixed scroll is not deformed in a wavy shape, a convex shape or a concave shape. Since the above deformation is eliminated, the sliding surface between the fixed scroll end plate and the orbiting scroll end plate does not slide with the seal length being insufficient, and the gas leak from the intermediate pressure chamber is caused. Performance degradation, and reliability degradation due to one-sided operation is improved.

Further, the outer peripheral surfaces of the feet provided on the left and right of the center of gravity of the scroll compression mechanism are supported by press-fitting into a closed container, or the outer peripheral surfaces of the feet provided at the center of gravity of the scroll compression mechanism are pressed into the closed container. The support by the fastening has an effect of alleviating the noise generated between the frame and the casing due to the vibration at the time of starting which applies a large torque.

Further, the various members inserted into the gap between the outer peripheral surface of the frame and the inner surface of the sealed container, or the projections formed on the outer peripheral surface of the frame have an effect of reducing the noise generated between the frame and the casing due to the vibration at the time of starting. Have

[Brief description of the drawings]

FIG. 1 is a sectional view of the overall structure of a hermetic scroll compressor according to one embodiment of the present invention.

FIG. 2 is an enlarged view of an outer peripheral surface of a frame in the hermetic scroll compressor according to one embodiment of the present invention.

FIG. 3 is an enlarged view showing a modified example of the outer peripheral surface of the frame in the hermetic scroll compressor according to one embodiment of the present invention.

FIG. 4 is a cross-sectional view of the overall structure of a hermetic scroll compressor according to another embodiment of the present invention.

FIG. 5 is an enlarged view of a frame outer peripheral surface in a hermetic scroll compressor according to another embodiment of the present invention.

FIG. 6 is an enlarged view of an outer peripheral surface of a frame in a hermetic scroll compressor according to still another embodiment of the present invention.

FIG. 7 is an enlarged view of a frame outer peripheral surface in a hermetic scroll compressor according to another embodiment of the present invention.

FIG. 8 is an enlarged view of an outer peripheral surface of a frame in a hermetic scroll compressor according to still another embodiment of the present invention.

FIGS. 9A and 9B are schematic cross-sectional views taken along the line AA of FIG. 1, wherein FIG. 9A shows a foot-like shape, and FIG.

FIG. 10 is a schematic sectional view taken along the line BB of FIG. 1;

FIG. 11 is a partially enlarged view of a compression mechanism 2 for explaining a conventional technique.

[Explanation of symbols]

1. Sealed container 1a Casing 1b Cap 1c Cap 2 Scroll compression mechanism 3 Electric motor 3a Stator 3b Rotor 4 Oil sump 5 Rotating scroll 5a Base plate 5b Lapping 5c Equalizing hole 5d Keyway 5e Mirror plate surface (sliding surface) 6 Fixed scroll 6a Base plate 6b Lapping 6c Suction hole 6d Discharge Hole 6e ... End plate surface (sliding surface) 6f ...
Low pressure space 6g End face 7 Drive shaft 7a Crank pin 7b Oil supply hole 7c Oil supply hole 8 Frame 8a Back pressure chamber 8b Base 8c
.. Keyway 8d Stationary pedestal 8e Stator fastening portion 8f, 8
g · · · Outer peripheral surface 8h · · · Fastening surface 8i · · · Groove 8j · · · Projection 8k · · ·
Oil return hole 8m, 8n Foot (outer peripheral surface) 9 Anti-rotation mechanism (Oldham ring) 9a Key 9b Ring 10 Bearing 11 Bearing 12 Seal bearing 13 Upper space 14 ..Lower space 15 ... Gas passage 16 ... Cover 16a ... Gas passage hole 17 ... Bearing 18 ... Oil supply pipe 19 ... Bolt
20, discharge connection 21, suction connection 22, power supply connection 23, reed 24, frame 24e, stator fastening part 24f
··· Outer peripheral surface 24h ··· Space 24i ··· Gas passage hole 25 ··· Peripheral cut portion of stator 26 ··· Gas passage 27 ··· Cover 27a ··· Gas passage hole 27b ··· Boss 30 ··· Rubber material 31 ··· Clip 31a Projection 32 Wedge 33 Pin 34 Support member 35 Bolt

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F04C 18/02 311 F04C 29/00

Claims (7)

(57) [Claims] 1. A compression mechanism comprising a fixed scroll, an orbiting scroll, a frame, a rotation preventing mechanism, and other members, a crankshaft connected to the orbiting scroll, an electric motor for driving the crankshaft, and a driving unit comprising other members. The scroll compression mechanism portion is housed in a closed container, and the outer periphery of the frame is located at two locations on the compression mechanism portion side in the axial direction with respect to the center of gravity of the scroll compression mechanism portion, and one location on the drive portion side. Provide multiple legs or ring-shaped torso in
In a hermetic scroll compressor having a structure in which an outer peripheral surface of a frame body is inserted along an inner surface of a closed container, the outer peripheral surface of the frame body portion is provided on both sides in an axial direction with respect to a center of gravity of a scroll compression mechanism. The outer peripheral surface of the ring-shaped body is completely fastened to the inner surface of the sealed container by press-fitting or welding, etc., and the outer peripheral surface of the frame of the compression mechanism located on the fastening surface between the frame and the fixed scroll has a gap with the inner surface of the closed container. A hermetic scroll compressor provided or provided with an intermediate fit. 2. A compression mechanism comprising a fixed scroll, an orbiting scroll, a frame, a rotation preventing mechanism, and other members, a crankshaft connected to the orbiting scroll, an electric motor for driving the crankshaft, and a driving unit comprising other members. A plurality of legs or a ring-shaped body provided on the outer periphery of the frame at the center of gravity of the scroll compression mechanism and on the compression mechanism side. Is inserted along the inner surface of the closed container, wherein the outer peripheral surface of the frame body is completely fastened to the inner surface of the closed container by press fitting or welding at the position of the center of gravity of the scroll compressor, and fixed to the frame. The outer peripheral surface of the frame of the compression mechanism portion located on the fastening surface with the scroll has a gap with the inner surface of the sealed container, or A hermetic scroll compressor characterized by an intermediate fit. 3. A gap is provided between the outer peripheral surface of the frame and the inner surface of the sealed container of the compression mechanism located on the fastening surface with the fixed scroll, and a gap between the outer peripheral surface of the frame and the inner surface of the closed container is elastically formed of rubber, plastic material, or the like. 3. The hermetic scroll compressor according to claim 1, wherein a material is inserted. 4. A gap is provided between the outer peripheral surface of the frame and the inner surface of the closed container of the compression mechanism located at the fastening surface with the fixed scroll, and a copper pipe having a small rigidity is provided in the gap between the outer peripheral surface of the frame and the inner surface of the closed container. 3. An iron pipe or a corrugated metal material or the like is inserted.
A hermetic scroll compressor as described. 5. A gap is provided between the outer peripheral surface of the frame and the inner surface of the sealed container of the compression mechanism located at the fastening surface with the fixed scroll, and a spring steel such as a clip is inserted into the gap between the outer peripheral surface of the frame and the inner surface of the closed container. The hermetic scroll compressor according to claim 1 or 2, wherein: 6. A gap is provided between the outer peripheral surface of the frame and the inner surface of the closed container of the compression mechanism located at the connecting surface with the fixed scroll, the outer peripheral surface of the frame and the closed container are fastened by a support member such as a knock pin, and 3. The hermetic scroll compressor according to claim 1, wherein the support member such as the knock pin is fastened to the closed vessel by welding or the like. 7. One or more projections or ring-shaped projections are provided on the outer peripheral surface of the frame of the compression mechanism located at the fastening surface between the frame and the fixed scroll, and the projections on the outer peripheral surface of the frame are sealed containers. 3. The hermetic scroll compressor according to claim 1, wherein said hermetic scroll compressor has an intermediate fit.