JP2005240562A - Scroll compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a heat in a delivery chamber from being transmitted to a suction gas through the inside of a fixed scroll. <P>SOLUTION: This scroll compressor 100 comprises an operating chamber 124 formed of the fixed scroll 108 and a swing scroll 107, a delivery hole formed at the center of the fixed scroll, the delivery chamber 125 formed at the end face of the fixed scroll on the opposite side of the swing scroll side end face thereof, a compressor part 143 taking a compressed fluid into the operating chamber when the operating chamber reaches the outermost diameter part of the fixed scroll by the revolution of the swing scroll and compressing the fluid while moving toward the center of the fixed scroll, and heat insulating members 127, 137, and 141 installed in the fixed scroll. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a scroll compressor suitable for use in a refrigeration cycle.

  In general, when the temperature of the intake gas increases in the compressor, the volume per unit mass of the intake gas increases, and the mass efficiency of the compressor deteriorates due to the decrease in the mass of gas sucked by the compressor at a time. It has been known.

On the other hand, since the discharge chamber of the compressor is at a high temperature, the transfer of heat from the discharge chamber to the suction gas leads to deterioration in volumetric efficiency. Therefore, in the scroll compressor described in Patent Document 1, a heat insulating film made of a low heat conductive material is provided on the inner wall of the discharge chamber and outside the fixed scroll.
Japanese Utility Model Publication No.59-111982

  However, as in the invention described in Patent Document 1, the heat that has passed through the heat insulating coating provided inside the discharge chamber passes through the inside of the fixed scroll only by providing the heat insulating coating on the inner wall of the discharge chamber and the outside of the fixed scroll. There is a problem of being transferred to the inhaled gas.

  The present invention has been made in view of such problems, and an object of the present invention is to prevent heat in the discharge chamber from being transmitted to the intake gas through the inside of the fixed scroll.

  To achieve the above object, the invention described in claim 1 includes a housing (104) having a suction pipe (101) for sucking a fluid, and a rotating shaft (103) rotatably held in the housing (104). And a driving means (105) for rotationally driving the rotating shaft (103), a fixed end plate portion (122) fixed in the housing (104), and a rotating shaft (103) from the fixed end plate portion (122). A fixed scroll (108) having a spiral fixed blade portion (123) protruding in the axial direction and a position in the housing (104) facing the fixed blade portion (123) are provided, and a rotating shaft (103) is provided. The rotating end plate portion (119) revolves around the rotating shaft (103) by being driven to rotate, and the rotating end plate portion (119) from the rotating end plate portion (119) to mesh with the fixed blade portion (123). axis Provided in the orbiting scroll (107) having a spiral orbiting blade portion (120) projecting in the direction and the fixed end plate portion (122), and the fixed blade portion (123) of the fixed end plate portion (122) is provided. A discharge hole (140) communicating the one end surface and the other end surface, and a first heat insulating member (127, 137, 141) inside the fixed end plate portion (122) are provided.

  As a result, the heat of the fluid compressed by the compressor unit (143) and discharged into the discharge chamber (125) travels through the fixed scroll (108) and is sucked into the housing (104) from the suction pipe (101). Can be prevented from being transferred to the fluid.

  According to a second aspect of the present invention, in the first aspect of the invention, the first heat insulating member (127, 137) is parallel to the axial direction of the rotary shaft (103) in the fixed scroll (107). It is arranged so as to block heat conduction in the direction.

  Thereby, since heat conduction from the other end surface opposite to the one end surface provided with the fixed blade portion (123) of the fixed end plate portion (122) to the one end surface side can be blocked, the compressor portion It is possible to prevent the heat of the fluid compressed by (143) from being transmitted through the inside of the fixed end plate portion (122) of the fixed scroll (108) to the fluid sucked into the housing (104).

  According to a third aspect of the present invention, in the second aspect of the present invention, the side surface of the fixed end plate portion (122) has a circumferentially cut portion (a portion of the side surface cut in the circumferential direction). 132) is provided, and the first heat insulating members (127, 137) are inserted into the circumferential cutting portion (132).

  Thereby, the first heat insulating members (127, 137) can be easily provided in the fixed end plate portion (122).

  According to a fourth aspect of the present invention, in the third aspect of the present invention, a plurality of circumferentially cut portions (132) and first heat insulating members (137) are provided.

  Thereby, while improving the heat insulation effect by a 1st heat insulation member (137), since the cutting area per circumferential direction cutting part (132) can be made small, the intensity | strength of a fixed end plate part (122) is made. Can be strong.

  According to a fifth aspect of the present invention, in the first aspect of the invention, the first heat insulating member (141) is a radial direction of a circle around the rotation axis (103) in the fixed scroll (122). It arrange | positions so that the heat conduction to may be interrupted | blocked.

  Thereby, since heat conduction from the position where the discharge hole (140) of the fixed end plate portion (122) is provided to the fluid before compression can be blocked, the fluid compressed by the compressor portion (143) It is possible to prevent heat from being transferred to the fluid sucked into the housing (104) through the fixed end plate portion (122) of the fixed scroll (108).

  According to a sixth aspect of the invention, in the fifth aspect of the invention, the other end surface of the fixed end plate portion (122) is parallel to the axial direction of the rotary shaft (103) from the other end surface. A shaved axial shaving portion (142) is provided, and the first heat insulating member (141) is inserted into the axial shaving portion (142).

  Thereby, the first heat insulating member (141) can be easily provided in the fixed end plate portion (122).

  The invention described in claim 7 is characterized in that, in the invention described in claim 6, a plurality of sets of axial shaving portions (142) and first heat insulating members (141) are provided.

  Thereby, while improving the heat insulation effect by a 1st heat insulation member (141), since the cutting area per axial direction cutting part (142) can be made small, the intensity | strength of a fixed end plate part (122) is strengthened. can do.

  The invention according to claim 8 is the invention according to any one of claims 1 to 7, wherein the housing (104) is provided and the fluid compressed by the compressor section (143) is supplied. The housing (104) includes a discharge pipe (102) that discharges to the outside, and a discharge chamber (125) that is a space interposed between the discharge hole (140) and the discharge pipe (102). A second heat insulating member (133) is provided on the inner wall.

  Thereby, it can prevent that the heat | fever of the fluid compressed by the compressor part (143) and discharged by the discharge chamber (125) is transmitted to the inside of a fixed scroll (108).

  The invention according to claim 9 is the invention according to any one of claims 1 to 8, wherein a third heat insulating member (provided on the outer wall of the fixed end plate portion (122)) is provided. 139).

  Thereby, the heat of the fluid compressed by the compressor part (143) and discharged into the discharge chamber (125) can be prevented from being transmitted from the outside of the fixed scroll (108) to the inside of the fixed end plate part (122). .

  The invention described in claim 10 is characterized in that in the invention described in any one of claims 1 to 9, a carbon dioxide-based refrigerant is used as a fluid.

  The present invention is suitable for use in a scroll type compressor that compresses a carbon dioxide-based refrigerant having a high temperature and a high pressure.

  In addition, the code | symbol in the parenthesis attached | subjected to each said means is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

(Configuration of this embodiment)
FIG. 1 is a cross-sectional view showing a cross section of a scroll compressor 100 according to this embodiment.

  The scroll compressor 100 of the present embodiment is applied to a refrigeration cycle using a carbon dioxide refrigerant. The scroll compressor 100 is connected to a refrigerant suction pipe 101 at an upper part and a refrigerant discharge pipe 102 at a lower part of a side wall, and a motor 105, in order from the top inside a housing 104 having a rotary shaft 103 extending in the vertical direction. A middle housing 106, a turning scroll 107, a fixed scroll 108, and a discharge chamber 109 are arranged.

  The refrigerant suction pipe 101 is connected to a low-pressure refrigerant pipe connected to an evaporator (not shown) of the refrigeration cycle, and protrudes from the upper end of the housing 104.

  The refrigerant discharge pipe 102 is connected to a high-pressure refrigerant pipe connected to a condenser of a refrigeration cycle (not shown), and protrudes from the lower part of the side wall of the housing 104.

  The rotating shaft 103 is rotatably held by a first bearing 110 formed in the middle housing 106 and a second bearing 111 provided on the upper portion of the motor 105, and a predetermined amount with respect to the shaft center is provided at the lower end thereof. An eccentric drive pin 112 and a balancer weight 113 are provided.

  The drive pin 112 is connected to a bush 114 having an eccentric hole by a circlip 115.

  The motor 105 is a well-known electric motor including a stator coil 116 fixed to the inner peripheral surface of the housing 104 and a rotor 117 that rotates within the stator coil 116. The motor 105 rotates the rotating shaft 103 when the stator coil 116 is energized by a control device (not shown).

  The middle housing 106 is compressed by a revolving scroll 107 and a fixed scroll 108, which will be described later, through which the refrigerant passes through the middle housing 106 in the axial direction and is sucked from the refrigerant suction pipe 101 and reaches the suction chamber 118. A plurality of refrigerant introduction paths (not shown) are provided to guide the outermost diameter portion 145 of the fixed blade portion 123 of the machine portion 143.

  The orbiting scroll 107 includes a disc-shaped orbiting end plate portion 119, a spiral type orbiting blade portion 120 formed so as to protrude downward in the axial direction from the orbiting end plate portion 119, and the orbiting end plate portion 119. It has a boss 121 formed on the back surface (on the upper side in the axial direction). The orbiting scroll 107 is connected to the bush 114 by the boss portion 121 and is disposed at a position facing the fixed scroll 108 described later. The orbiting scroll 107 revolves around the rotation shaft 103 as the rotation shaft 103 rotates. In addition, the orbiting scroll 107 is configured to be able to satisfactorily revolve by an Oldham ring 146 and a rotation prevention pin (not shown).

  The fixed scroll 108 includes a fixed end plate portion 122 fixed to a discharge chamber 109, which will be described later, and a spiral fixed blade portion 123 formed so as to protrude upward in the axial direction from the fixed end plate portion 122. is there. A heat insulating material 139 is applied to the side surface of the fixed scroll 108.

  A disk-shaped heat insulating member 127 is assembled inside the fixed end plate portion 122 constituting the fixed scroll 108. The disk-shaped heat insulating member 127 and the fixed end plate portion 122 will be described later.

  Here, the operation of the compressor unit 143 will be described. When the swirl vane portion 120 and the fixed vane portion 123 are engaged with each other, a plurality of working chambers 124 that are crescent-shaped when viewed from the axial direction are formed between the swirl vane portion 120 and the fixed vane portion 123. When the rotary shaft 103 rotates and the orbiting scroll 107 revolves, the working chamber 124 reaches the outermost diameter portion 145 of the fixed blade portion 123 on the outer periphery of the orbiting scroll 107 and opens toward the suction chamber 118, and the refrigerant is It flows into the working chamber 124. Next, the working chamber 124 moves while shrinking toward the center of the orbiting scroll 107 and the fixed scroll 108 while the orbiting scroll 107 revolves, and compresses the refrigerant. When the working chamber 124 reaches the center of the orbiting scroll 107 and the fixed scroll 108, the compressed refrigerant passes through the discharge hole 140 provided at the center of the fixed end plate 122 of the fixed scroll 108 and is discharged into the discharge chamber 125. Is done.

  The discharge chamber 125 is provided above the recess 128 and the discharge chamber 109 provided on the lower side of the fixed end plate portion 122 (on the other end surface side with respect to the one end surface on which the fixed blade portion 123 is provided). And a heat insulating material 133 is applied to the inner wall of the discharge chamber 126.

  A discharge valve 130 is provided on the outlet side (discharge chamber 125 side) of the discharge hole 140. The discharge valve 130 functions to prevent the refrigerant discharged into the discharge chamber 130 from flowing backward.

  The refrigerant discharged into the discharge chamber 125 is guided to the refrigerant discharge pipe 102 through the refrigerant discharge passage 126 provided on the side wall of the concave portion 128 of the fixed end plate portion 122.

  The discharge chamber 109 is a member formed of a metal such as iron, and is a pedestal that is disposed at the lower end of the housing 104 and fixes the fixed scroll 108 and the like with bolts 138.

  Next, the fixed scroll 108 and the disk-shaped heat insulating member 127 will be described with reference to FIGS.

  FIG. 2 is a schematic view schematically showing cross sections of the housing 104, the orbiting scroll 107, the fixed scroll 108, the disk-shaped heat insulating member 127, the discharge chamber 109, the refrigerant discharge path 126, and the discharge valve 130.

  As described above, the refrigerant that has flowed into the housing 104 from the refrigerant suction pipe 101 and reached the suction chamber 118 causes the working chamber 124 to have the outermost diameter portion 145 of the fixed blade portion 123 as the orbiting scroll 107 revolves. The working chamber 124 communicates with the suction chamber 118 and flows into the working chamber 124.

  FIG. 3 is a view of the disk-shaped heat insulating member 127 in FIG. 2 as viewed from below. The disk-shaped heat insulating member 127 is provided with a large hole 134 at the center of the disk. Further, the disc-shaped heat insulating member 127 is provided with a cut 135 in the radial direction so that the hole 134 communicates with the outer peripheral portion of the disc. Further, the disk-shaped heat insulating member 127 is provided with a plurality of bolt holes 136 penetrating the disk-shaped heat insulating member 127 in the vertical direction. The disc-shaped heat insulating member 127 is formed of a material such as soft resin or rubber.

  FIG. 4 is a diagram showing an assembly structure between the fixed scroll 108 and the disk-shaped heat insulating member 127. FIG. 4A is a cross-sectional view showing the fixed scroll 108 alone. On the side surface of the fixed end plate portion 122, a circumferential cutting portion 132 is formed over the entire circumference in the circumferential direction. The disk-shaped heat insulating member 127 is fitted into the circumferentially cut portion 132 so as to spread the cut 135. The lower end surface of the fixed end plate portion 122 is provided with a concave portion 128, and a plurality of discharge holes 140 penetrating the fixed end plate portion 122 in the vertical direction are provided at the center of the concave portion 128.

  FIG. 4B is a view of the fixed scroll 108 as viewed from the bottom to the top with the disk-shaped heat insulating member 127 assembled to the fixed scroll 108. The recess 128 is recessed in a square shape. The fixed end plate portion 122 is provided with a plurality of bolt holes 131 penetrating the fixed end plate portion 122 in the axial direction of the rotating shaft 103. Bolts 144 (see FIG. 1), the fixed end plate portion 122 and the disk-shaped heat insulating member 127 are joined.

  Actually, there are holes through which the bolts 138 shown in FIG. 1 are passed. However, since FIGS. 2 to 3 are schematic views, the holes through which the bolts 138 are passed are omitted. It is shown.

  2 is a cross-sectional view taken along the broken line indicated by bb ′ in FIG. 4B, and FIG. 3 is a cross-sectional view taken along the broken line indicated by aa ′ in FIG. 4B. is there.

  Next, the operation and effect of this embodiment will be described. In the present embodiment, a circumferential shaving portion 132 is formed on a part of the side surface of the fixed end plate portion 122 over the entire circumference, and a cut 135 of the disk-shaped heat insulating member 127 is formed in the shaving portion 132. The heat insulating member 127 was provided inside the fixed scroll 108 by being fitted so as to be expanded.

  That is, even if the heat of the refrigerant discharged into the discharge chamber 125 passes through the heat insulating material 133 applied to the inner wall of the discharge chamber 125 and is conducted through the fixed scroll 108, the circumferential cutting of the fixed end plate portion 122 is performed. The disk-shaped heat insulating member 127 fitted in the portion 132 can block heat conduction in the vertical direction (direction parallel to the rolling axis) in the fixed end plate portion.

  As a result, the heat of the refrigerant discharged into the discharge chamber 125 is not transmitted to the one end surface of the fixed scroll 108 on the orbiting scroll 107 side, and reaches the outermost diameter portion 145 of the fixed blade portion 123. It can be prevented that the refrigerant flows into the refrigerant, and the efficiency of the scroll compressor 100 can be improved.

  The present invention is suitable for use in a scroll type compressor that compresses a supercritical cycle carbon dioxide refrigerant in which the compressed refrigerant is at a high temperature and a high pressure.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol was attached | subjected to the same site | part as 1st Embodiment. In the first embodiment, the circumferentially cut portion 132 is formed on a part of the side surface of the fixed end plate portion 122 over the entire circumference, and the disk-shaped heat insulating member 127 is fitted into the cutout portion 133. In the embodiment, a plurality of circumferentially cut portions 132 are provided on a part of the side surface of the fixed end plate portion 122, and a fan-shaped heat insulating member 137 is fitted into each of the radially cut portions 132.

  FIG. 5 is a view of the fan-shaped heat insulating member 137 as viewed from below. The fan-shaped heat insulating member 137 is made of a material such as soft resin or rubber.

  FIG. 6 is a view showing an assembly structure between the fixed scroll 108 and the fan-shaped heat insulating member 137 in the present embodiment, and FIG. 6A is a schematic view showing a cross section of the fixed end plate portion 122. . A plurality of circumferential cutting portions 132 are provided on the side surface of the fixed end plate portion 122, and a fan-shaped heat insulating member 137 is fitted in each circumferential cutting portion 132. FIG. 6B is a view of the fixed end plate portion 122 and the fan-shaped heat insulating member 137 as viewed from below, and the circumferential cutting portion 132 and the fan-shaped heat insulating member 137 are indicated by broken lines.

  As a result, as in the first embodiment, even if the heat of the refrigerant discharged into the discharge chamber 125 passes through the heat insulating material 133 applied to the inner wall of the discharge chamber 125 and attempts to conduct the inside of the fixed scroll 108, the fixed end plate portion The outermost diameter portion 145 of the fixed blade portion 123 is not thermally conducted in the vertical direction (the direction parallel to the rotation axis) by the fan-shaped heat insulating member 137 fitted into the circumferential cutting portion 132 of 122. It is possible to prevent heat from being transferred to the refrigerant flowing into the working chamber 124 that has reached.

  In addition, by providing a plurality of circumferentially cut portions 132 and fan-shaped heat insulating materials 137, compared to the first embodiment in which the circumferentially cut portions 132 are provided over the entire circumference of the side surface of the fixed end plate portion 122. Thus, the strength of the fixed end plate portion 122 can be increased. In addition, by using a plurality of fan-shaped heat insulating members 137, the heat insulating member 137 can be assembled as compared with the first embodiment in which the cut portion 132 of the disk-shaped heat insulating member 127 is fitted to the cut portion 132 so as to be expanded. It becomes easy and the shape of the heat insulation member 137 can be made simple.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol was attached | subjected to the same site | part as 1st and 2nd embodiment. In the first and second embodiments, a circumferential cutting portion 133 is formed on the side surface of the fixed end plate portion 122, and heat insulating members 127 and 137 are fitted into the cutting portion 133 in a direction parallel to the rotating shaft 103. However, in this embodiment, a plurality of axially sharpened portions 142 cut in a shape curved in the axial direction are provided on the lower end surface of the fixed end plate portion 122, and each of these axially sharpened portions 142 is provided. The curved plate-shaped heat insulating member 141 is fitted.

  FIG. 7 is a view of the curved plate-shaped heat insulating member 141 as viewed from below. The heat insulating member 141 of the plate is made of a material such as soft resin or rubber.

  FIG. 8 is a view showing an assembly structure between the fixed scroll 108 and the curved plate-like heat insulating member 141 in the present embodiment, and FIG. 8A is a schematic view showing a cross section of the fixed end plate portion 122. FIG. The lower end face of the fixed end plate portion 122 is provided with a plurality of axial cutting portions 142 extending in the circumferential direction of concentric circles around the rotation shaft 103, and each of the axial cutting portions 142 is curved. A heat-insulating member 141 is fitted. FIG. 8B is a view of the fixed end plate portion 122 and the heat insulating member 141 having a curved shape as viewed from below.

  As a result, even if the heat of the refrigerant discharged into the discharge chamber 125 passes through the heat insulating material 133 applied to the inner wall of the discharge chamber 125 and conducts in the radial direction in the fixed scroll 108, a plurality of heat insulating members are received. 141 can block heat conduction in the radial direction of the circle centered on the rotation shaft 103 (the direction indicated by the arrow C in FIG. 8).

  Therefore, heat conduction from the discharge hole 140 provided at the center of the fixed end plate portion 122 to the outermost diameter portion 145 of the fixed blade portion 123 can be blocked. As a result, similarly to the first embodiment, it is possible to prevent the heat of the discharge chamber 125 from being transferred to the refrigerant taken into the working chamber 124 that has reached the outermost diameter portion 145 of the fixed blade portion 123.

(Other embodiments)
In the first and second embodiments, the circumferentially cut portion 132 is provided on a part of the side surface of the fixed end plate portion 122, and the heat insulating members 127 and 137 are fitted into the circumferentially cut portion 132. The invention is not limited to this, and if the heat of the refrigerant discharged into the discharge chamber 125 can be prevented from being conducted in the axial direction of the rotary shaft 103 in the fixed scroll 108, which one of the heat insulating members 127 and 137 is used. You may make it arrange | position.

  In the third embodiment, a plurality of curved axial cutting portions 142 are provided on the lower end surface of the fixed end plate portion 122, and a curved plate-shaped heat insulating member 141 is provided on each of the axial cutting portions 142. However, the present invention is not limited to this, and the heat insulating member 141 can be used as long as the heat of the refrigerant discharged into the discharge chamber 125 can be prevented from being conducted in the radial direction of the rotary shaft 103 through the fixed scroll 108. May be arranged in any way, for example, by providing an annular axial shaving portion on the lower end surface of the fixed end plate portion 122, and inserting a cylindrical heat insulating member into the annular groove. Also good.

It is sectional drawing which shows the cross section of the scroll compressor 100 in 1st Embodiment. It is the schematic diagram which showed typically the partial cross section of the scroll compressor 100 in 1st Embodiment. It is the schematic diagram which looked at the disk-shaped heat insulation member 127 single-piece | unit in 1st Embodiment from the bottom. It is the schematic diagram which showed the assembly | attachment structure between both members about the fixed scroll 108 and the disk-shaped heat insulation member 127 in 1st Embodiment. It is the schematic diagram which looked at the disk-shaped heat insulation member 127 simple substance in 2nd Embodiment from the bottom. It is the schematic diagram which showed the assembly structure between both members about the fixed scroll 108 and the disk-shaped heat insulation member 127 in 2nd Embodiment. It is the schematic diagram which looked at the disk-shaped heat insulation member 127 simple substance in 3rd Embodiment from the bottom. It is the schematic diagram which showed the assembly | attachment structure between both members about the fixed scroll 108 and the disk-shaped heat insulation member 127 in 3rd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Scroll type compressor, 107 ... Swirling scroll, 108 ... Fixed scroll, 109 ... Discharge chamber, 118 ... Suction chamber, 119 ... Swirling end plate part, 120 ... Swirling blade part, 124 ... Working chamber, 125 ... Discharge chamber, DESCRIPTION OF SYMBOLS 127 ... Disc-shaped heat insulation member, 132 ... Radial cutout part, 133 ... Heat insulation material, 137 ... Fan-shaped heat insulation member, 139 ... Heat insulation material, 141 ... Curved plate-shaped heat insulation member, 142 ... Axial cutout part 143: Compressor part, 145: Outermost diameter part of fixed blade part.

Claims (10)

A housing (104) having a suction pipe (101) for sucking fluid;
A rotating shaft (103) rotatably held in the housing (104);
Drive means (105) for rotationally driving the rotary shaft (103);
A fixed end plate portion (122) fixed in the housing (104), and a spiral fixed blade portion (123) protruding from the fixed end plate portion (122) in the axial direction of the rotating shaft (103); A fixed scroll (108) having:
A revolving end plate portion provided at a position facing the fixed blade portion (123) in the housing (104) and revolving around the rotation shaft (103) when the rotation shaft (103) is driven to rotate. (119) and a spiral swirl blade portion (120) protruding in the axial direction of the rotation shaft (103) from the swivel end plate portion (119) so as to mesh with the fixed blade portion (123). Orbiting scroll (107);
A discharge hole (140) that is provided in the fixed end plate portion (122) and communicates with one end surface of the fixed end plate portion (122) provided with the fixed blade portion (123) and the other end surface;
A scroll compressor comprising a first heat insulating member (127, 137, 141) inside the fixed end plate (122). Said 1st heat insulation member (127,137) is arrange | positioned so that the heat conduction to the direction parallel to the axial direction of the said rotating shaft (103) may be interrupted | blocked in the said fixed scroll (107). The scroll compressor according to claim 1. On the side surface of the fixed end plate portion (122), there is provided a circumferential direction cutting portion (132) in which a part of the side surface is cut in the circumferential direction,
The scroll compressor according to claim 2, wherein the first heat insulating member (127, 137) is inserted into the circumferential cutting portion (132). The scroll compressor according to claim 3, wherein a plurality of sets of the circumferentially cut portion (132) and the first heat insulating member (127, 137) are provided. Said 1st heat insulation member (141) is arrange | positioned so that the heat conduction to the radial direction of the circle | round | yen centering on the said rotating shaft (103) may be interrupted | blocked in the said fixed scroll (122). The scroll compressor according to claim 1. The other end surface of the fixed end plate portion (122) is provided with an axial direction cutting portion (142) that is cut from the other end surface in a direction parallel to the axial direction of the rotation shaft (103),
The scroll compressor according to claim 5, wherein the first heat insulating member (141) is inserted into the axial shaving portion (142). The scroll compressor according to claim 6, wherein a plurality of sets of the axial direction shaving part (142) and the first heat insulating member (141) are provided. A discharge pipe (102) that is provided in the housing (104) and discharges the fluid compressed by the compressor unit (143) to the outside of the housing (104);
A discharge chamber (125) that is a space interposed between the discharge hole (140) in the previous period and the discharge pipe (102);
The scroll compressor according to any one of claims 1 to 7, wherein a second heat insulating member (133) is provided on an inner wall of the discharge chamber (125). The scroll compressor according to any one of claims 1 to 8, further comprising a third heat insulating member (139) provided on an outer wall of the fixed end plate portion (122). The scroll compressor according to any one of claims 1 to 9, wherein a carbon dioxide-based refrigerant is used as the fluid.