Compressor

Abstract

The invention provides a compressor which comprises a check valve fixer and a bypass valve fixer, at least one of the check valve fixer and the bypass valve fixer is fixedly connected with a floating sealing plate, a first through hole is formed in a fixed vortex, the floating sealing plate and the fixed vortex are enclosed to form a discharge buffer cavity, and a check valve is arranged in the discharge buffer cavity. The check valve is arranged in the check valve fixing device and can move between a first position and a second position, when the check valve is located at the first position, the check valve is separated from the thrust surface of the check valve fixing device and seals the first through hole, and when the check valve is located at the second position, the check valve abuts against the thrust surface of the check valve fixing device and is separated from the first through hole; a bypass channel is formed in the fixed vortex, the discharge buffer cavity is communicated with the bypass channel, the bypass valve is located in the bypass channel and can move between a third position and a fourth position relative to the bypass valve fixator, when the bypass valve is located at the third position, the bypass channel is opened by the bypass valve, and when the bypass valve is located at the fourth position, the bypass channel is closed by the bypass valve.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to a compressor. Background Art

[0002] With the development of compressor technology, compressors are used more and more widely in people's lives. In the current use process, the compressor usually includes a check valve and a bypass valve. In order to fix and limit the check valve and the bypass valve, additional screws and other fixings are usually required. It can be seen that the current manufacturing cost of the compressor is relatively high. Summary of the invention

[0003] An embodiment of the present invention provides a compressor to solve the problem of high manufacturing cost of the compressor.

[0004] In order to solve the above-mentioned technical problems, the present invention is achieved as follows:

[0005] An embodiment of the present invention provides a compressor, comprising: a floating sealing plate, a movable scroll and a fixed scroll, and the compressor also comprises at least one of a check valve assembly and a bypass valve assembly, the check valve assembly comprises a check valve and a check valve holder, the bypass valve assembly comprises a bypass valve and a bypass valve holder, at least one of the check valve holder and the bypass valve holder is fixedly connected to the floating sealing plate, a first through hole is provided on the fixed scroll, the floating sealing plate and the fixed scroll are combined to form a discharge buffer chamber, the check valve is arranged in the discharge buffer chamber, and the check valve can move between a first position and a second position, when the check valve is in the first position When the check valve is in the second position, the check valve is in contact with the thrust surface of the check valve holder, and the check valve closes the first through hole. A bypass channel is provided on the fixed vortex, and the discharge buffer chamber is connected with the bypass channel. The bypass valve is located in the bypass channel, and the bypass valve can move between a third position and a fourth position relative to the bypass valve holder. When the bypass valve is in the third position, the bypass valve opens the bypass channel, and when the bypass valve is in the fourth position, the bypass valve closes the bypass channel.

[0006] As an optional implementation, a second through hole is formed on the check valve holder, and the second through hole is communicated with the discharge buffer chamber.

[0007] As an optional implementation, a third through hole is further provided on the floating sealing plate, and the third through hole is located on one side of the check valve holder.

[0008] As an optional implementation, when a second through hole is provided on the check valve holder and a third through hole is provided on the floating sealing plate, the second through hole is communicated with the third through hole.

[0009] As an optional implementation, a check valve base is further provided on the fixed scroll, a fourth through hole is formed on the check valve base, and the fourth through hole is communicated with the first through hole.

[0010] As an optional embodiment, the bypass valve is a piston valve, the bypass valve holder includes a bypass valve guide cavity, the first end of the piston valve is inserted into the bypass valve guide cavity, the second end of the piston valve is located in the bypass channel, and the second end of the piston valve can move between the third position and the fourth position.

[0011] As an optional implementation, an elastic member is further provided on the bypass valve holder, and the first end of the piston valve passes through the elastic member and is connected to the bypass valve guide chamber.

[0012] As an optional embodiment, the bypass valve is a disc valve. When the disc valve is in the third position, the disc valve abuts against the bypass valve holder, and the disc valve opens the bypass channel. When the disc valve is in the fourth position, the disc valve separates from the bypass valve holder, and the disc valve closes the bypass channel.

[0013] As an optional embodiment, a protrusion is provided on the bypass valve holder, and when the disc valve is in the third position, the disc valve abuts against the bypass valve holder and the protrusion, and when the disc valve is in the fourth position, the disc valve is separated from the bypass valve holder and the protrusion.

[0014] As an optional implementation, a positioning member for aligning the floating sealing plate with the fixed scroll is further provided on the floating sealing plate, and a positioning portion for aligning the fixed scroll with the floating sealing plate is also provided on the fixed scroll.

[0015] In the embodiment of the present invention, since at least one of the check valve holder and the bypass valve holder is fixedly connected to the floating sealing plate, that is, the check valve holder and the bypass valve holder are equivalent to being integrated on the floating sealing plate, and the check valve holder can fix and limit the check valve, and the bypass valve holder can fix and limit the bypass valve, there is no need to separately set up fixings corresponding to the check valve and the bypass valve, thereby saving manufacturing costs and reducing the size of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0017] Figure 1 It is one of the structural schematic diagrams of the compressor provided by the embodiment of the present invention;

[0018] Figure 2 This is one of the structural schematic diagrams of the floating sealing plate and other components in the compressor provided by an embodiment of the present invention;

[0019] Figure 3 This is the second structural schematic diagram of the floating sealing plate and other components in the compressor provided by the embodiment of the present invention;

[0020] Figure 4 This is the third structural schematic diagram of the floating sealing plate and other components in the compressor provided by the embodiment of the present invention;

[0021] Figure 5 This is the second structural schematic diagram of the compressor provided by the embodiment of the present invention;

[0022] Figure 6 This is the third structural schematic diagram of the compressor provided by the embodiment of the present invention;

[0023] Figure 7 This is the fourth structural schematic diagram of the floating sealing plate and other components in the compressor provided by the embodiment of the present invention;

[0024] Figure 8 This is the fifth structural schematic diagram of the floating sealing plate and other components in the compressor provided by the embodiment of the present invention;

[0025] Fig. 9 This is the fourth structural schematic diagram of the compressor provided by the embodiment of the present invention;

[0026] Fig.10 This is the fifth structural schematic diagram of the compressor provided in the embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 9The compressor comprises: a floating sealing plate 20, a movable scroll 100 and a fixed scroll 30, and the compressor further comprises at least one of a check valve assembly and a bypass valve assembly, the check valve assembly comprises a check valve 40 and a check valve holder 50, the bypass valve assembly comprises a bypass valve 60 and a bypass valve holder 70, at least one of the check valve holder 50 and the bypass valve holder 70 is fixedly connected to the floating sealing plate 20, a first through hole 31 is provided on the fixed scroll 30, the floating sealing plate 20 and the fixed scroll 30 are enclosed to form a discharge buffer chamber 80, the check valve 40 is arranged in the discharge buffer chamber 80, and the check valve 40 can move between a first position and a second position, when the check valve 40 is in the first position, the check valve 4 0 is separated from the thrust surface of the check valve holder 50, and the check valve 40 closes the first through hole 31. When the check valve 40 is in the second position, the check valve 40 abuts against the thrust surface of the check valve holder 50, and the check valve 40 is separated from the first through hole 31. A bypass channel 32 is opened on the fixed scroll 30, and the discharge buffer chamber 80 is communicated with the bypass channel 32. The bypass valve 60 is located in the bypass channel 32, and the bypass valve 60 can move between the third position and the fourth position relative to the bypass valve holder 70. When the bypass valve 60 is in the third position, the bypass valve 60 opens the bypass channel 32, and when the bypass valve 60 is in the fourth position, the bypass valve 60 closes the bypass channel 32.

[0029] The working principle of the embodiment of the present invention can be seen in the following description:

[0030] Since at least one of the check valve holder 50 and the bypass valve holder 70 is fixedly connected to the floating sealing plate 20, that is, the check valve holder 50 and the bypass valve holder 70 are equivalent to being integrated on the floating sealing plate 20, and the check valve holder 50 can fix and limit the check valve 40, and the bypass valve holder 70 can fix and limit the bypass valve 60, there is no need to separately set up fixing parts corresponding to the check valve 40 and the bypass valve 60, thereby saving manufacturing costs and reducing the size of the compressor.

[0031] Among them, the shell 10 can be understood as the outer shell of the compressor, and multiple components can be arranged in the shell 10. Optionally, the floating sealing plate 20, the fixed scroll 30, the check valve 40, the check valve holder 50, the bypass valve 60 and the bypass valve holder 70 are all arranged in the shell 10.

[0032] In addition, the check valve holder 50 is integrated into the floating sealing plate 20, and the bypass valve holder 70 is integrated into the floating sealing plate 20, so that the structure of the compressor is simpler than that of the current compressor, while reducing material costs and labor assembly costs.

[0033] In addition, since the check valve holder 50 is integrated into the floating sealing plate 20, and the bypass valve holder 70 is integrated into the floating sealing plate 20, the volume of the discharge buffer chamber 80 can also be increased. In this way, a plurality of bypass channels 32 and a plurality of bypass valves 60 can be arranged on the compressor, and a bypass valve 60 can be arranged in each bypass channel 32. That is, by arranging a plurality of bypass valves 60, the compressor can obtain a higher coefficient of performance (COP) under over-compression conditions.

[0034] It should be noted that see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 and Fig. 9 A receiving groove 52 may be provided on the check valve holder 50, and the receiving groove 52 may be used to receive the check valve 40. Thus, when the check valve 40 is in the second position, the check valve 40 may be disposed in the receiving groove 52, thereby enhancing the receiving effect of the check valve 40. The receiving groove 52 may also be referred to as a groove.

[0035] Among them, the floating sealing plate 20 and the fixed scroll 30 can be connected to form a back pressure chamber, and the back pressure chamber can provide a force to push the fixed scroll 30 toward the movable scroll 100. The movable scroll 100 can be arranged opposite to the fixed scroll 30. When the compressor is in operation, the check valve 40 can move to the second position, that is, the check valve 40 abuts against the thrust surface of the check valve holder 50, and the check valve 40 is separated from the first through hole 31. The gas in the back pressure chamber can provide a force to push the fixed scroll 30 toward the movable scroll 100; when the compressor is in a stopped state, the check valve 40 moves to the first position, that is, the check valve 40 is separated from the thrust surface of the check valve holder 50, and the check valve 40 abuts against the fixed scroll 30, and the check valve 40 closes the first through hole 31, so that the high-pressure gas cannot enter the compression chamber of the compressor through the first through hole 31, thereby preventing the movable scroll 100 from reversing. The above-mentioned first through hole 31 can also be referred to as a D port.

[0036] It should be noted that the positional relationship between the movable scroll 100 and the fixed scroll 30 is not limited here. Optionally, the movable scroll 100 and the fixed scroll 30 can be arranged relative to each other and spaced apart. Alternatively, the movable scroll 100 and the fixed scroll 30 can be arranged relative to each other, and the movable scroll 100 and the fixed scroll 30 can be in contact with each other. The specific position is not limited here.

[0037] Among them, see Figure 1 and Fig. 9 The compressor may further include a first sealing ring 90 and a second sealing ring 91, and the first sealing ring 90 may be disposed between the floating sealing plate 20 and the fixed scroll 30, and the first sealing ring 90 may be used to isolate the back pressure chamber from the suction chamber, and the first sealing ring 90 may be disposed on the floating sealing plate 20, and the above-mentioned first sealing ring 90 may also be referred to as an external sealing ring; the second sealing ring 91 may be disposed between the floating sealing plate 20 and the fixed scroll 30, and the second sealing ring 91 may be used to isolate the back pressure chamber from the exhaust chamber, and the second sealing ring 91 may be disposed on the fixed scroll 30, and the above-mentioned second sealing ring 91 may also be referred to as an internal sealing ring, and an exhaust pipe 93 may also be disposed on the compressor, and the exhaust pipe 93 may be connected to the exhaust chamber for discharging gas.

[0038] It should be noted that the specific method of connecting the fixed scroll 30 and the floating sealing plate 20 is not limited here, see Figure 1 , the fixed scroll 30 is located in the groove of the floating sealing plate 20 and abuts against the inner wall of the groove; see Fig. 9 , the floating sealing plate 20 may be located in the groove of the fixed scroll 30 and abut against the inner wall of the groove.

[0039] Also, see Figure 1 and Fig. 9 The compressor may further include a muffler plate 92, and the muffler plate 92 may be disposed opposite to the floating sealing plate 20, and the muffler plate 92 may be used to isolate the exhaust chamber and the suction chamber.

[0040] The bypass channel 32 may be used to connect the discharge buffer chamber 80 and the compression chamber of the compressor, and the bypass channel 32 may be opened on the end plate 301 of the fixed scroll 30 .

[0041] As an optional implementation, see Figure 2 and Figure 3 The check valve holder 50 is provided with a second through hole 51 , and the second through hole 51 is communicated with the discharge buffer chamber 80 .

[0042] The specific shape of the second through hole 51 is not limited here. Optionally, the second through hole 51 can be a circular hole or a square hole.

[0043] The opening position of the second through hole 51 on the check valve holder 50 is not limited here. Optionally, the second through hole 51 can be opened at the center position of the check valve holder 50.

[0044] In the embodiment of the present invention, since the second through hole 51 is opened on the check valve holder 50, and the second through hole 51 is connected to the discharge buffer chamber 80, the adsorption force of the check valve holder 50 on the check valve 40 can be reduced, so that it is more convenient to separate the check valve 40 from the check valve holder 50 when it is needed.

[0045] As an optional implementation, see Figure 2 The floating sealing plate 20 is also provided with a third through hole 21 , and the third through hole 21 is located on one side of the check valve holder 50 .

[0046] The specific shape of the third through hole 21 is not limited here. Optionally, the third through hole 21 can be an arc-shaped hole.

[0047] The number of the third through holes 21 is not limited herein. Optionally, the number of the third through holes 21 may be multiple, and the multiple third through holes 21 may be arranged around the second through hole 51 , that is, the second through hole 51 may be located between the multiple third through holes 21 .

[0048] In an embodiment of the present invention, the third through hole 21 can be connected to the first through hole 31 through the discharge buffer cavity 80, so that the high-pressure gas can be discharged from the first through hole 31, the discharge buffer cavity 80 and the third through hole 21 in sequence, thereby enhancing the discharge effect of the high-pressure gas.

[0049] As an optional implementation, see Figure 3 In the case where the check valve holder 50 is provided with a second through hole 51 and the floating sealing plate 20 is provided with a third through hole 21 , the second through hole 51 is communicated with the third through hole 21 .

[0050] In the embodiment of the present invention, the second through hole 51 is connected to the third through hole 21, so that the second through hole 51 and the third through hole 21 can simultaneously constitute the exhaust port of the high-pressure gas, thereby further enhancing the exhaust effect of the high-pressure gas.

[0051] As an optional implementation, see Figure 6 A check valve base 33 is also provided on the fixed scroll 30 . A fourth through hole is formed on the check valve base 33 . The fourth through hole is connected to the first through hole 31 .

[0052] In the embodiment of the present invention, since a check valve base 33 is provided on the fixed scroll 30, when the check valve 40 is located in the first position, the check valve 40 can abut against the check valve base 33, thereby enhancing the limiting effect of the check valve 40 when it is located in the first position.

[0053] It should be noted that when the check valve 40 abuts against the check valve base 33, the check valve 40 can simultaneously close the fourth through hole and the first through hole 31; when the check valve 40 is in the second position, the high-pressure gas can be discharged through the first through hole 31, the fourth through hole, the exhaust buffer chamber and the third through hole 21 in sequence.

[0054] As an optional embodiment, the bypass valve 60 is a piston valve, see Figure 2 , Figure 3 and Figure 8 The bypass valve holder 70 includes a bypass valve guide chamber 71, the first end of the piston valve is inserted into the bypass valve guide chamber 71, the second end of the piston valve is located in the bypass channel 32, and the second end of the piston valve can move between the third position and the fourth position.

[0055] Among them, when the second end of the piston valve is in the third position, there may be a gap between the second end of the piston valve and the inner wall of the bypass channel 32, so that the bypass channel 32 is in an open state; when the second end of the piston valve is in the fourth position, the second end of the piston valve may abut against the inner wall of the bypass channel 32, that is, there is no gap between the second end of the piston valve and the inner wall of the bypass channel 32, so that the bypass channel 32 is in a closed state.

[0056] In the embodiment of the present invention, the bypass valve 60 is a piston valve, and the second end of the piston valve moves between the third position and the fourth position, so that the bypass channel 32 can be conveniently controlled to be opened or closed, which simplifies the control method and reduces the use cost.

[0057] As an optional implementation, see Figure 1 , Figure 5 and Fig. 9 The bypass valve holder 70 is also provided with an elastic member 72 , and the first end of the piston valve passes through the elastic member 72 and is connected to the bypass valve guide chamber 71 .

[0058] The elastic member 72 may be a spring, so that the use cost is lower and the driving effect is more reliable.

[0059] When the elastic member 72 is in a compressed state, the second end of the piston valve may be in a third position; when the elastic member 72 is in an extended state, the second end of the piston valve may be in a fourth position.

[0060] In the embodiment of the present invention, the first end of the piston valve is connected to the bypass valve guide chamber 71 through the elastic member 72, so that the second end of the piston valve can be driven to move between the third position and the fourth position by switching the elastic member 72 between the compressed state and the extended state, thereby simplifying the driving method of the second end of the piston valve and enhancing the driving effect of the second end of the piston valve.

[0061] As an optional implementation, see Figure 5 The bypass valve 60 is a disc valve. When the disc valve is in the third position, the disc valve abuts against the bypass valve holder 70, and the disc valve opens the bypass channel 32. When the disc valve is in the fourth position, the disc valve separates from the bypass valve holder 70, and the disc valve closes the bypass channel 32.

[0062] When the disc valve is in the third position, the disc valve abuts against the bypass valve holder 70, and the disc valve opens the bypass channel 32, so that the gas can enter the bypass channel 32 through the gas channel, thereby completing the exhaust; when the disc valve is in the fourth position, the disc valve is separated from the bypass valve holder 70, and the disc valve closes the bypass channel 32, that is, the gas cannot enter the bypass channel 32 through the gas channel, and the above-mentioned gas channel can be as Fig.10 As shown in AA.

[0063] In the embodiment of the present invention, the bypass valve 60 is a disc valve, which increases the diversity and flexibility of the bypass valve 60. At the same time, the disc valve is abutted against or separated from the bypass valve holder 70, so that the bypass channel 32 can be controlled to be opened or closed, which also increases the control method of opening or closing the bypass channel 32.

[0064] As an optional implementation, see Figure 4 A protrusion 73 is provided on the bypass valve holder 70. When the disc valve is in the third position, the disc valve abuts against the bypass valve holder 70 and the protrusion 73. When the disc valve is in the fourth position, the disc valve is separated from the bypass valve holder 70 and the protrusion 73.

[0065] The number of the protrusions 73 is not limited, and the abutment method between the disc valve and the protrusions 73 is not limited.

[0066] Optionally, when the disc valve is in the third position, the protrusion 73 may abut against the surface of the disc valve, thereby limiting the position of the disc valve.

[0067] Optionally, a limit hole may be provided on the disc valve. Optionally, the limit hole may correspond to the protrusion 73 one by one. Thus, when the disc valve is in the third position, the protrusion 73 may pass through the limit hole, thereby limiting the disc valve.

[0068] In the embodiment of the present invention, a protrusion 73 is provided on the bypass valve holder 70, so that the limiting effect on the disc valve can be further enhanced.

[0069] As an optional implementation, see Figure 2 , Figure 3 , Figure 4 and Figure 8 The floating sealing plate 20 is also provided with a positioning member 22 for aligning the floating sealing plate 20 with the fixed scroll 30 , and the fixed scroll 30 is also provided with a positioning portion for aligning the fixed scroll 30 with the floating sealing plate 20 .

[0070] The positioning portion may be used in conjunction with the positioning member 22. Optionally, one of the positioning member 22 and the positioning portion may be a positioning protrusion, and the other may be a positioning hole.

[0071] Optionally, the positioning member 22 and the positioning portion are both positioning holes. When the positioning member 22 and the positioning portion are both positioning holes and the positioning member 22 and the positioning portion overlap, it can be determined that the fixed scroll 30 is aligned with the floating sealing plate 20; alternatively, the positioning pin can be inserted into the positioning member 22 and the positioning portion in sequence to determine that the fixed scroll 30 is aligned with the floating sealing plate 20.

[0072] In the embodiment of the present invention, the positioning portion and the positioning member 22 are aligned, so that the floating sealing plate 20 and the fixed scroll 30 can be aligned, thereby improving the alignment efficiency and the alignment accuracy.

[0073] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A compressor, characterized in that: include: A floating sealing plate, a movable scroll and a fixed scroll, and the compressor also includes at least one of a check valve assembly and a bypass valve assembly, the check valve assembly includes a check valve and a check valve holder, the bypass valve assembly includes a bypass valve and a bypass valve holder, at least one of the check valve holder and the bypass valve holder is fixedly connected to the floating sealing plate, a first through hole is opened on the fixed scroll, the floating sealing plate and the fixed scroll are surrounded to form a discharge buffer chamber, the check valve is arranged in the discharge buffer chamber, and the check valve can move between a first position and a second position, and when the check valve is in the first position, the check valve and The thrust surface of the check valve holder is separated, and the check valve closes the first through hole. When the check valve is in the second position, the check valve abuts against the thrust surface of the check valve holder, and the check valve is separated from the first through hole. A bypass channel is provided on the fixed vortex, and the discharge buffer chamber is connected to the bypass channel. The bypass valve is located in the bypass channel, and the bypass valve can move between a third position and a fourth position relative to the bypass valve holder. When the bypass valve is in the third position, the bypass valve opens the bypass channel, and when the bypass valve is in the fourth position, the bypass valve closes the bypass channel.

2. The compressor according to claim 1, characterized in that The check valve holder is provided with a second through hole, and the second through hole is communicated with the discharge buffer chamber.

3. The compressor according to claim 1 or 2, characterized in that: The floating sealing plate is also provided with a third through hole, and the third through hole is located at one side of the check valve holder.

4. The compressor according to claim 3, characterized in that When the check valve holder is provided with a second through hole and the floating sealing plate is provided with a third through hole, the second through hole is communicated with the third through hole.

5. The compressor according to claim 1, characterized in that A check valve base is also provided on the fixed scroll, and a fourth through hole is opened on the check valve base, and the fourth through hole is communicated with the first through hole.

6. The compressor according to claim 1, characterized in that The bypass valve is a piston valve, and the bypass valve holder includes a bypass valve guide cavity. The first end of the piston valve is inserted into the bypass valve guide cavity, and the second end of the piston valve is located in the bypass channel. The second end of the piston valve can move between the third position and the fourth position.

7. The compressor according to claim 6, characterized in that The bypass valve holder is also provided with an elastic member, and the first end of the piston valve passes through the elastic member and is connected with the bypass valve guide chamber.

8. The compressor according to claim 1, characterized in that The bypass valve is a disc valve. When the disc valve is in the third position, the disc valve abuts against the bypass valve holder, and the disc valve opens the bypass channel. When the disc valve is in the fourth position, the disc valve separates from the bypass valve holder, and the disc valve closes the bypass channel.

9. The compressor according to claim 8, characterized in that The bypass valve holder is provided with a protrusion. When the disc valve is in the third position, the disc valve abuts against the bypass valve holder or the protrusion. When the disc valve is in the fourth position, the disc valve is separated from the bypass valve holder and the protrusion.

10. The compressor according to claim 8, characterized in that The floating sealing plate is also provided with a positioning member for aligning the floating sealing plate with the fixed scroll, and the fixed scroll is also provided with a positioning portion for aligning the fixed scroll with the floating sealing plate.

Images