Scroll type gas compressor

Abstract

The utility model belongs to the technical field of vehicle-mounted gas supply equipment, and discloses a vortex type gas compressor which comprises a double-shaft motor, two vortex pumps and an electromagnetic clutch, two supports are arranged on the two sides of the double-shaft motor respectively, an eccentric driving shaft is arranged on one side of the double-shaft motor, and a center driving shaft is arranged on the other side of the double-shaft motor. The vortex pump comprises a movable vortex plate and a fixed vortex plate, and one movable vortex plate is connected with the eccentric driving shaft through a first pivotal bearing; the electromagnetic clutch is connected with the central driving shaft and is provided with an eccentric shaft, the eccentric shaft is connected with the other orbiting scroll through a second pivotal bearing, and the electromagnetic clutch is selectively connected with the central driving shaft and the eccentric shaft; and the compression ratio of the scroll pump connected with the eccentric driving shaft is smaller than that of the other scroll pump. By arranging the two vortex pumps and the electromagnetic clutch, the pipeline layout is simplified, the vehicle load weight is reduced, and the control and arrangement cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle-mounted gas supply equipment, and in particular to a scroll gas compressor. Background Technology

[0002] In existing passenger vehicles, in addition to high-pressure air supply lines that supply air to the chassis, tires, and cleaning pipes for onboard sensors, there are also low-pressure air supply lines that supply air to the oxygen supply device in the driver's cab. These two types of lines are independent of each other, which leads to a complex internal pipe layout, increasing not only the vehicle's weight but also additional control and layout costs. Utility Model Content

[0003] The purpose of this invention is to provide a scroll gas compressor that simplifies pipeline layout and reduces control and layout costs.

[0004] To achieve this objective, the present invention adopts the following technical solution: a scroll gas compressor, comprising a dual-shaft motor, two scroll pumps, and an electromagnetic clutch. Two supports are respectively provided on both sides of the dual-shaft motor. An eccentric drive shaft is provided on one side of the dual-shaft motor, and a central drive shaft is provided on the other side. The two scroll pumps are symmetrically arranged on both sides of the dual-shaft motor. Each scroll pump includes a moving scroll and a fixed scroll. The moving scroll and the fixed scroll cooperate to form a compression chamber. The fixed scroll is correspondingly connected to the supports. An air inlet and an air outlet are provided on the side of the fixed scroll away from the dual-shaft motor. Both the air inlet and the air outlet communicate with the compression chamber. One of the moving scrolls is connected to the eccentric drive shaft via a first slewing bearing. An electromagnetic clutch is connected to the central drive shaft and has an eccentric shaft. The eccentric shaft is connected to the other moving scroll via a second slewing bearing. The electromagnetic clutch selectively connects the central drive shaft and the eccentric shaft. The compression ratio of the scroll pump connected to the eccentric drive shaft is less than the compression ratio of the other scroll pump.

[0005] Preferably, the electromagnetic clutch includes an active friction disc and a driven friction disc arranged opposite to each other. The active friction disc is connected to the central drive shaft. The eccentric shaft is located on the side of the driven friction disc away from the active friction disc. The driven friction disc is movable along the axial direction of the moving scroll. The active friction disc and the driven friction disc are magnetically connected to enable the central drive shaft and the eccentric shaft to be connected in a transmission manner.

[0006] Preferably, the cross-section of the central drive shaft is D-shaped, and the active friction disc is provided with a socket that matches the D-shaped central drive shaft.

[0007] Preferably, a plurality of connecting components are provided between the moving volute and the fixed volute, and the plurality of connecting components are arranged at intervals along the circumference of the vortex pump. Each connecting component includes two third rotary bearings and an eccentric shaft. The two third rotary bearings are respectively connected to both ends of the eccentric shaft. A plurality of positioning holes are provided on both sides of the moving volute and the fixed volute, and the positioning holes are configured one-to-one with the connecting components. The two third rotary bearings are respectively confined in the positioning holes of the moving volute and the fixed volute.

[0008] Preferably, limiting components are provided on both sides of the moving scroll and the fixed scroll, and the limiting components abut against the third slewing bearing to limit the third slewing bearing.

[0009] Preferably, the fixed vortex disk has a reinforcing part on the side opposite to the dual-axis motor, the reinforcing part protrudes from the end face of the fixed vortex disk, the air inlet and the air outlet both pass through the reinforcing part, and the positioning hole is partially opened in the reinforcing part.

[0010] Preferably, the bracket includes multiple connecting pipes, which are spaced apart along the circumference of the motor. The outer peripheral wall of the fixed vortex disk is provided with multiple connecting parts, which correspond one-to-one with the connecting pipes and are bolted together.

[0011] Preferably, a hollow portion is formed between the connecting pipe, the moving scroll, and the side wall of the motor, and the electromagnetic clutch is housed in the hollow portion.

[0012] Preferably, the eccentric drive shaft is fitted with a counterweight.

[0013] Preferably, a connector is installed at the air outlet.

[0014] The beneficial effects of this invention are as follows: Under normal conditions, the dual-shaft motor drives the eccentric rotation of the moving scroll of one of the scroll pumps via an eccentric drive shaft, thereby outputting low-pressure gas to supply the oxygen generation module of the vehicle. When the tires need inflation, or when the sensor cleaning pipeline or the body cleaning device needs air, the electromagnetic clutch engages, connecting the central drive shaft and the eccentric shaft, thereby outputting high-pressure gas to inflate the tires or clean the sensors and body. By setting two scroll pumps and an electromagnetic clutch, one motor can drive two scroll pumps, thus simultaneously outputting high and low-pressure gas. Compared with the existing independent high-pressure and low-pressure gas sources, this reduces one controller and one motor, simplifies pipeline layout, reduces vehicle weight, and significantly reduces control and layout costs. Simultaneously, the electromagnetic clutch is positioned between the dual-shaft motor and the corresponding moving scroll, simplifying the compressor structure, improving space utilization, shortening electrical distances, and enhancing the integration and compactness of the compressor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the scroll gas compressor according to an embodiment of the present invention;

[0016] Figure 2 This is an exploded view of a scroll gas compressor according to an embodiment of the present invention;

[0017] Figure 3 This is a side view of a scroll gas compressor according to an embodiment of the present invention;

[0018] Figure 4 yes Figure 2 Sectional view at point AA.

[0019] In the diagram: 100, dual-axis motor; 110, bracket; 111, connecting pipe; 112, hollow section; 120, eccentric drive shaft; 121, counterweight; 122, first slewing bearing; 130, central drive shaft; 200, vortex pump; 210, moving vortex; 211, positioning hole; 212, first mounting slot; 220, fixed vortex; 221, air inlet; 222, air outlet; 223, reinforcing section; 224, second mounting slot; 230, connecting assembly; 231, third slewing bearing; 232, eccentric shaft; 240, limiting assembly; 250, connector; 300, electromagnetic clutch; 310, second slewing bearing; 320, insertion hole. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] Reference Figures 1 to 4 As shown, the scroll gas compressor provided according to the embodiment of this application includes a dual-shaft motor 100, two scroll pumps 200 and an electromagnetic clutch 300. Two brackets 110 are provided on both sides of the dual-shaft motor 100. An eccentric drive shaft 120 is provided on one side of the dual-shaft motor 100 and a central drive shaft 130 is provided on the other side.

[0025] Two scroll pumps 200 are symmetrically arranged on both sides of the dual-shaft motor 100. Each scroll pump 200 includes a moving scroll 210 and a fixed scroll 220. The moving scroll 210 and the fixed scroll 220 have meshing volutes on their opposite sides. The moving scroll 210 and the fixed scroll 220 form a spiral compression chamber through the meshing of the volutes. The fixed scroll 220 is connected to the bracket 110. The side of the fixed scroll 220 away from the dual-shaft motor 100 has an air inlet 221 and an air outlet 222. The air inlet 221 is located at one end of the outer edge of the compression chamber, and the air outlet 222 is located at the other end of the compression chamber. The air inlet 221 and outlet 222 at the center of the compression chamber are both connected to the compression chamber. One of the moving scrolls 210 is connected to the eccentric drive shaft 120 via a first slewing bearing 122. The electromagnetic clutch 300 is connected to the central drive shaft 130 and is equipped with an eccentric shaft. The eccentric shaft is connected to another moving scroll 210 via a second slewing bearing 310. The electromagnetic clutch selectively connects the central drive shaft 130 and the eccentric shaft. Specifically, when the electromagnetic clutch 300 is de-energized and disengaged, the central drive shaft 130 and the eccentric shaft are disconnected; when the electromagnetic clutch 300 is energized and engaged, the central drive shaft 130 and the eccentric shaft are connected in a driving connection. The compression ratio of the scroll pump 200 connected to the eccentric drive shaft 120 is lower than the compression ratio of the other scroll pump 200. The compression ratio of the scroll pump 200 is the ratio of the outlet pressure at the outlet 222 to the inlet pressure at the inlet 221. The compression ratio of the scroll pump 200 can be adjusted by adjusting the shape parameters of the scroll teeth. Specifically, the thicker the scroll teeth, the lower the height, the fewer the number of turns, and the smaller the base circle size, the smaller the volume of the compression chamber formed and the lower the compression ratio. Conversely, the thinner the teeth, the higher the height, the more turns, and the larger the base circle size, the larger the volume of the compression chamber formed and the higher the compression ratio. Users can set different values ​​for the scroll tooth thickness, scroll tooth height, number of scroll teeth, and base circle size of the two scroll pumps 200, so that the compression ratio of the scroll pump 200 corresponding to the electromagnetic clutch 300 is greater than the compression ratio of the scroll pump 200 directly connected to the eccentric drive shaft 120. For example, the ratio between the compression ratio of the scroll pump 200 corresponding to the electromagnetic clutch 300 and the compression ratio of the scroll pump 200 connected to the eccentric drive shaft 120 can be set to 1.5:1, 1.8:1 or 2:1, etc., which will not be elaborated here.

[0026] It should be noted that the end face of the moving scroll 210 facing the fixed scroll 220 is provided with a spiral first mounting groove 212, and the end face of the fixed scroll 220 facing the moving scroll 210 is provided with a spiral second mounting groove 224. Both the first mounting groove 212 and the second mounting groove 224 are equipped with sealing strips. The sealing strip in the first mounting groove 212 abuts against the end face of the fixed scroll 220 facing the moving scroll 210, and the sealing strip in the second mounting groove 224 abuts against the end face of the moving scroll 210 facing the fixed scroll 220, thereby ensuring the sealing of the compression chamber.

[0027] Under normal conditions, the dual-axis motor 100 drives the moving scroll 210 of one of the scroll pumps 200 to rotate eccentrically within the same radius of rotation via the eccentric drive shaft 120. This causes the volute teeth of the corresponding moving scroll 210 to rotate eccentrically around the volute teeth of the fixed scroll 220, thereby driving the scroll pump 200 to draw in air from the air inlet 221, compress the air in the compression chamber, and discharge it from the air outlet 222. This outputs low-pressure gas to supply the oxygen generation module of the entire vehicle. When the tires need to be inflated or when the sensor cleaning pipes or the body cleaning device need air, the electromagnetic clutch 300 engages to drive the central drive shaft 130 and the eccentric shaft, causing the volute teeth of the corresponding moving scroll 210 to rotate eccentrically around the volute teeth of the fixed scroll 220. This drives the scroll pump 200 to draw in air from the air inlet 221, compress the air in the compression chamber, and discharge it from the air outlet 222. This outputs high-pressure gas to inflate the tires or clean the sensors and the body.

[0028] By incorporating two scroll pumps 200 and an electromagnetic clutch 300, a single motor can drive both scroll pumps 200, enabling simultaneous output of high and low pressure gas. Compared to existing independent high-pressure and low-pressure gas sources, this reduces the need for a controller and a motor, simplifies piping layout, reduces vehicle weight, and significantly lowers control and installation costs. Furthermore, the electromagnetic clutch 300, positioned between the dual-shaft motor 100 and the corresponding moving scroll 210, simplifies the compressor structure, improves space utilization, shortens electrical distances, and enhances the compressor's integration and compactness.

[0029] Furthermore, the electromagnetic clutch 300 includes an active friction disc and a driven friction disc arranged opposite to each other. The active friction disc is connected to the central drive shaft 130, and the eccentric shaft is located on the side of the driven friction disc away from the active friction disc. The driven friction disc can move along the axial direction of the moving swivel 210. The active friction disc is provided with electromagnetic components such as a yoke and a coil. The coil is located inside the yoke. The driven friction disc is provided with a magnetic attraction element that can respond to the electromagnetic components. When the coil is energized, the yoke generates a magnetic attraction force that attracts the magnetic attraction element, thereby realizing the corresponding connection between the active friction disc and the driven friction disc, so that the central drive shaft 130 and the eccentric shaft are connected by transmission.

[0030] By setting an active friction disc and a driven friction disc, the structure of the electromagnetic clutch 300 can be simplified, making it easier for users to arrange the electromagnetic clutch 300 and ensuring the transmission stability between the central drive shaft 130 and the eccentric shaft.

[0031] Alternatively, in some other embodiments, the driving friction disc and driven friction disc of the electromagnetic clutch 300 can be replaced with a stator with coils and a driven rotor with magnetic powder (i.e., the electromagnetic clutch 300 is replaced from a friction plate type to a magnetic powder type). The stator is connected to the central drive shaft 130, and the eccentric shaft is set on the driven rotor. The stator and the magnetic powder are magnetically attracted to each other, which can also realize the selective connection between the central drive shaft 130 and the eccentric shaft. Since the magnetic powder electromagnetic clutch 300 technology is mature and has various structures, it will not be described in detail here.

[0032] Reference Figure 2 As shown, it can be understood that the cross-section of the central drive shaft 130 is D-shaped, and the active friction disc is provided with a socket 320 that matches the D-shaped central drive shaft 130. The central drive shaft 130 is inserted into the socket 320.

[0033] Setting the cross-section of the central drive shaft 130 to a D-shape, that is, the outer circumferential surface of the central drive shaft 130 is composed of a partial cylindrical surface and a plane, can effectively improve the connection stability between the central drive shaft 130 and the active friction disc, ensure the stable power transmission of the dual-shaft motor 100, and effectively improve the structural stability of the compressor.

[0034] Alternatively, in some other embodiments, the D-shaped center drive shaft 130 can also be configured as a polygonal prism, such as a square prism, a hexagonal prism, etc., which will not be described in detail here. The socket 320 is configured as a polygonal hole that matches the polygonal prism.

[0035] Reference Figure 2 and Figure 3 As shown, it can be understood that multiple connecting components 230 are provided between the moving scroll 210 and the fixed scroll 220. The multiple connecting components 230 are arranged at intervals along the circumference of the scroll pump 200. Each connecting component 230 includes two third rotary bearings 231 and an eccentric shaft 232. The two third rotary bearings 231 are respectively connected to both ends of the eccentric shaft 232. Multiple positioning holes 211 are provided on both sides of the moving scroll 210 and the fixed scroll 220. The positioning holes 211 are set one-to-one with the connecting components 230. The two third rotary bearings 231 are respectively confined in the positioning holes 211 of the moving scroll 210 and the fixed scroll 220.

[0036] When the moving scroll 210 rotates eccentrically around a certain radius of rotation, it drives the third slewing bearing 231 in its positioning groove to rotate eccentrically around the eccentric shaft 232. By setting the connecting assembly 230, the connecting assembly 230 can disperse the stress between the moving scroll 210 and the fixed scroll 220, reduce the resistance on the eccentric drive shaft 120 and the eccentric shaft, and at the same time, the connecting assembly 230 can provide support between the moving scroll 210 and the fixed scroll 220, avoid excessive friction on the sealing strip that affects the rotation of the moving scroll 210, and effectively improve the smoothness of the operation of the scroll pump 200.

[0037] Reference Figure 2 and Figure 4 As shown, it can be understood that the fixed scroll plate 220 has a reinforcing part 223 on the side away from the dual-axis motor 100. The reinforcing part 223 protrudes from the end face of the fixed scroll plate 220. The air inlet 221 and the air outlet 222 both pass through the reinforcing part 223. The positioning hole 211 is partially opened in the reinforcing part 223, that is, the positioning hole 211 extends from the side of the fixed scroll plate 220 toward the moving scroll plate 210 into the reinforcing part 223.

[0038] By setting the reinforcing part 223, the thickness of the air inlet 221, the air outlet 222 and the positioning hole 211 can be increased, and the wall thickness of the air inlet 221, the air outlet 222 and the positioning hole 211 can be increased. This improves the stability of the connection between the compressor and the external pipeline, as well as the installation stability of the connecting component 230, thereby improving the structural stability of the compressor.

[0039] Reference Figure 2 and Figure 3 As shown, it can be understood that both the moving scroll 210 and the fixed scroll 220 are provided with limiting components 240 on opposite sides, and the limiting components 240 abut against the third slewing bearing 231 to limit the third slewing bearing 231.

[0040] By setting the limiting component 240, the limiting component 240 can limit the third rotary bearing 231 along the axial direction of the positioning hole 211, thereby improving the installation stability of the connecting component 230. At the same time, it can achieve mutual locking of the moving scroll 210 and the fixed scroll 220 along the axial direction of the scroll pump 200, so that the fixed scroll 220 and the moving scroll 210 can form a connected whole even if they are separated from the dual-shaft motor 100. This avoids the repeated separation and combination of the fixed scroll 220 and the moving scroll 210 during the loading and unloading process of the scroll pump 200, which would affect the airtightness of the compression chamber.

[0041] Optionally, the limiting component 240 can be configured as at least two screws threadedly connected to the moving scroll 210 or the fixed scroll 220, or it can be configured as a rotating rod rotatably mounted on opposite sides of the moving scroll 210 and the fixed scroll 220. The structure of the limiting component 240 is not specifically limited here, as long as it can limit the third rotary bearing 231 axially along the positioning hole 211.

[0042] Furthermore, the eccentric drive shaft 120 is fitted with a counterweight 121, which is fan-shaped.

[0043] By setting the counterweight 121, the counterweight 121 can precisely adjust the center of gravity of the eccentric drive shaft 120, making the mass distribution of the eccentric drive shaft 120 more uniform, thereby reducing the vibration and noise of the compressor during operation.

[0044] It should be noted that the cross-section of the root of the eccentric drive shaft 120 can also be set as D-shaped, and the counterweight 121 is fitted onto the root of the D-shaped eccentric drive shaft 120 to improve the connection stability between the counterweight 121 and the eccentric drive shaft 120.

[0045] Reference Figure 1 and Figure 3 As shown, it can be understood that the bracket 110 includes multiple connecting pipes 111, which are spaced apart along the circumference of the motor. That is, the connecting pipes 111 and the connecting assembly 230 are staggered along the circumference of the motor. The outer peripheral wall of the fixed vortex 220 is provided with multiple connecting parts, which correspond one-to-one with the connecting pipes 111 and are bolted together.

[0046] By setting multiple connecting pipes 111 to connect the fixed scroll plate 220, the fixed scroll plate 220 can be installed stably while simplifying the structure of the bracket 110, reducing the weight of the compressor, and improving the lightweighting of the compressor.

[0047] Reference Figure 3 and Figure 4 As shown, it can be understood that a hollow portion 112 is formed between the connecting pipe 111, the moving scroll 210, and the side wall of the motor. Two hollow portions 112 are formed on both sides of the dual-shaft motor 100. The electromagnetic clutch 300 is housed in one of the hollow portions 112, and the counterweight 121 is housed in the other hollow portion 112. Specifically, the hollow portion 112 is the gap space between the moving scroll 210 and the compressor end face defined by the multiple connecting pipes 111.

[0048] The electromagnetic clutch 300 and the counterweight 121 are respectively installed in the hollow part 112, that is, the electromagnetic clutch 300 and the counterweight 121 are exposed outside the compressor. This allows users to directly observe the usage of the electromagnetic clutch 300 and the counterweight 121, and facilitates timely maintenance and replacement of the electromagnetic clutch 300 and the counterweight 121, thereby reducing the later maintenance cost of the compressor.

[0049] Reference Figure 1 and Figure 2 As shown, it can be understood that a connector 250 is installed at the air outlet 222. The connector 250 is L-shaped, and the end of the connector 250 away from the fixed vortex plate 220 is provided with a tapered connecting part.

[0050] By setting the connector 250, the connector 250 can be snapped into the external pipeline through the connection part, which facilitates the user's subsequent wiring and improves the ease of installation and removal of the compressor.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A scroll gas compressor, characterized in that, include: A dual-axis motor (100) is provided with two brackets (110) on each side of the dual-axis motor (100), and an eccentric drive shaft (120) is provided on one side of the dual-axis motor (100) and a central drive shaft (130) is provided on the other side. Two vortex pumps (200) are symmetrically arranged on both sides of the dual-shaft motor (100). Each vortex pump (200) includes a moving vortex disk (210) and a fixed vortex disk (220). The moving vortex disk (210) and the fixed vortex disk (220) cooperate to form a compression chamber. The fixed vortex disk (220) is correspondingly connected to the bracket (110). The fixed vortex disk (220) has an air inlet (221) and an air outlet (222) on the side away from the dual-shaft motor (100). Both the air inlet (221) and the air outlet (222) are connected to the compression chamber. One of the moving vortex disks (210) is connected to the eccentric drive shaft (120) through a first rotary bearing (122). An electromagnetic clutch (300) is connected to the central drive shaft (130) and is provided with an eccentric shaft. The eccentric shaft is connected to another moving scroll (210) via a second slewing bearing (310). The electromagnetic clutch (300) selectively connects the central drive shaft (130) and the eccentric shaft. The compression ratio of the vortex pump (200) connected to the eccentric drive shaft (120) is less than that of the other vortex pump (200).

2. The scroll gas compressor according to claim 1, characterized in that, The electromagnetic clutch (300) includes an active friction disc and a driven friction disc arranged opposite to each other. The active friction disc is connected to the central drive shaft (130). The eccentric shaft is located on the side of the driven friction disc away from the active friction disc. The driven friction disc can move along the axial direction of the moving scroll (210). The active friction disc and the driven friction disc are magnetically connected to enable the central drive shaft (130) and the eccentric shaft to be connected in a transmission manner.

3. The scroll gas compressor according to claim 2, characterized in that, The cross-section of the central drive shaft (130) is D-shaped, and the active friction disc is provided with a socket (320) that matches the D-shaped central drive shaft (130).

4. The scroll gas compressor according to any one of claims 1-3, characterized in that, Multiple connecting components (230) are provided between the moving vortex disk (210) and the fixed vortex disk (220). The multiple connecting components (230) are arranged at intervals along the circumference of the vortex pump (200). Each connecting component (230) includes two third rotary bearings (231) and an eccentric shaft (232). The two third rotary bearings (231) are respectively connected to both ends of the eccentric shaft (232). Multiple positioning holes (211) are provided on both sides of the moving vortex disk (210) and the fixed vortex disk (220). The positioning holes (211) are arranged one-to-one with the connecting components (230). The two third rotary bearings (231) are respectively confined in the positioning holes (211) of the moving vortex disk (210) and the fixed vortex disk (220).

5. The scroll gas compressor according to claim 4, characterized in that, Limiting components (240) are provided on both sides of the moving scroll (210) and the fixed scroll (220), and the limiting components (240) abut against the third slewing bearing (231) to limit the third slewing bearing (231).

6. The scroll gas compressor according to claim 4, characterized in that, The fixed vortex disk (220) is provided with a reinforcing part (223) on the side away from the dual-axis motor (100). The reinforcing part (223) protrudes from the end face of the fixed vortex disk (220). The air inlet (221) and the air outlet (222) both pass through the reinforcing part (223). The positioning hole (211) is partially opened in the reinforcing part (223).

7. The scroll gas compressor according to any one of claims 1-3, characterized in that, The bracket (110) includes multiple connecting pipes (111), which are spaced apart along the circumference of the motor. The outer peripheral wall of the fixed vortex disk (220) is provided with multiple connecting parts, which correspond one-to-one with the connecting pipes (111) and are bolted together.

8. The scroll gas compressor according to claim 7, characterized in that, A hollow section (112) is formed between the connecting pipe (111), the moving scroll (210), and the side wall of the motor, and the electromagnetic clutch (300) is housed in the hollow section (112).

9. The scroll gas compressor according to any one of claims 1-3, characterized in that, The eccentric drive shaft (120) is fitted with a counterweight (121).

10. The scroll gas compressor according to any one of claims 1-3, characterized in that, A connector (250) is installed at the air outlet (222).

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