Scroll compressor suitable for all refrigerants

Abstract

The utility model belongs to the technical field of compressors, and discloses a scroll compressor suitable for all refrigerants, which comprises a shell, a compressor assembly and a driving piece, the shell is provided with an air suction port and an air exhaust port, the compression assembly is positioned in the shell, and the compression assembly comprises at least two movable scroll plates and at least two static scroll plates which are arranged in one-to-one correspondence; the movable scroll plates are rotationally connected to the shell, the static scroll plates are fixedly connected to the shell, and the corresponding movable scroll plates and static scroll plates jointly form a compression cavity communicated with the air suction port and the air exhaust port; the driving piece is located in the shell and used for rotation of all the movable scroll plates. According to the scroll compressor suitable for all refrigerants, the at least two movable scroll plates and the at least two static scroll plates are arranged in the shell of the independent compressor, so that the compression efficiency is effectively guaranteed, the occupied space and the arrangement of accessories are reduced, and the applicability is high.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a scroll compressor applicable to all refrigerants. Background Technology

[0002] A scroll compressor is a compressible volumetric compressor consisting of a fixed stationary scroll and an eccentrically rotating moving scroll. During the intake, compression, and exhaust processes, the stationary scroll is fixed inside the casing, while the moving scroll, driven and constrained by an anti-rotation mechanism, rotates in a plane around the base circle of the stationary scroll with a very small radius. Gas is drawn into the periphery of the stationary scroll through the intake port. As the moving scroll rotates, the gas is gradually compressed within several crescent-shaped compression chambers formed by the engagement of the moving and stationary scrolls, and then continuously discharged outwards through the exhaust port.

[0003] In existing technologies, some application scenarios require the deployment of multiple scroll compressors to work together to meet the operating requirements. However, deploying multiple compressors individually would take up more space and involve more connecting pipes, power supplies, and other accessories, which would limit the use of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a scroll compressor applicable to all refrigerants, which has at least two moving scroll plates and a stationary scroll plate inside the casing of an independent compressor, effectively ensuring compression efficiency, reducing space occupation and accessory setup, and has strong applicability.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A scroll compressor applicable to all refrigerants, comprising:

[0007] The outer casing has an air intake and an exhaust port;

[0008] A compression assembly is located inside the housing. The compression assembly includes at least two moving scroll disks and stationary scroll disks that are arranged in a one-to-one correspondence. The moving scroll disks are rotatably connected to the housing, and the stationary scroll disks are fixedly connected to the housing. The corresponding moving scroll disks and stationary scroll disks together form a compression chamber that communicates with the intake port and the exhaust port.

[0009] A drive unit, located inside the housing, is used to drive all of the moving scroll disks to rotate.

[0010] Preferably, the driving component includes a through-shaft motor, which includes a motor housing and a motor shaft rotatably disposed in the motor housing. The motor housing is fixed inside the outer casing, and both ends of the motor shaft extend out of the motor housing.

[0011] The compression assembly includes two moving scroll disks and a stationary scroll disk arranged in a one-to-one correspondence. The two moving scroll disks are respectively arranged at opposite ends of the motor shaft, and each moving scroll disk is connected to the corresponding end of the motor shaft.

[0012] Preferably, the moving scroll plate is provided with a sleeve on the side facing the motor shaft, and the moving scroll plate is fixedly sleeved on the motor shaft through the sleeve.

[0013] Preferably, one of the motor shaft and the sleeve is provided with a keyway, and the other is provided with a corresponding connecting key, which is inserted into the keyway.

[0014] Preferably, the moving scroll plate has a connecting shaft on the side facing the motor shaft, and the connecting shaft is connected to the corresponding end of the motor shaft through a coupling.

[0015] Preferably, the housing is provided with a support bearing, the motor shaft passes through the support bearing, and is rotatably connected to the housing through the support bearing.

[0016] Preferably, the device also includes an electrical control for driving the motor shaft of the through-shaft motor to rotate.

[0017] Preferably, the number of air intake ports is set to correspond one-to-one with the number of moving vortex disks.

[0018] Preferably, the number of exhaust ports is set to correspond one-to-one with the number of moving vortex disks.

[0019] Preferably, the outer casing is provided with an air intake connector, and the air intake port is opened on the air intake connector; the outer casing is provided with an exhaust connector, and the exhaust port is opened on the exhaust connector.

[0020] Beneficial effects:

[0021] This invention provides a scroll compressor applicable to all refrigerants. It features at least two moving scrolls and a stationary scroll within the casing of a single compressor. Compared to multiple separate scroll compressors, this effectively reduces the number of components, lowers operating costs, and minimizes space requirements, resulting in a more compact overall structure. This makes it suitable for space-constrained applications such as small air conditioning units and vehicle air conditioning systems, enhancing its applicability. Furthermore, the compression assembly includes at least two corresponding moving and stationary scrolls, effectively providing at least two compression chambers within the casing. Driven by a driver, all moving scrolls rotate, drawing air into the casing through the intake port. After being compressed simultaneously in multiple chambers, the air is continuously discharged through the exhaust port, effectively improving compression efficiency, reducing refrigerant pressure and heat exchange losses within the casing, increasing the overall energy efficiency ratio of the refrigeration system, reducing energy consumption, and maintaining high performance over a wider operating range. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a scroll compressor applicable to all refrigerants provided by this utility model;

[0023] Figure 2 This is a schematic diagram of a half-section of the casing of a scroll compressor applicable to all refrigerants provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the compression component and driving component provided in one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the compression component and drive component provided in another embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the compression component and drive component provided in another embodiment of the present invention.

[0027] In the picture:

[0028] 1. Outer casing; 11. Intake connector; 111. Intake port; 12. Exhaust connector; 121. Exhaust port;

[0029] 21. Moving scroll plate; 211. Sleeve; 212. Connecting key; 213. Adapter shaft; 22. Stationary scroll plate;

[0030] 31. Through-shaft motor; 311. Motor housing; 312. Motor shaft; 32. Non-through-shaft motor; 33. Gear assembly; 331. First transmission gear; 332. Second transmission gear; 333. Third transmission gear; 334. Fourth transmission gear; 335. Transmission shaft;

[0031] 4. Electrical control unit. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] This embodiment provides a scroll compressor applicable to all refrigerants. (Refer to...) Figures 1 to 3As shown, the scroll compressor includes a housing 1, a compression assembly, and a drive unit. The housing 1 has an intake port 111 and an exhaust port 121. The compression assembly is located inside the housing 1 and includes at least two corresponding moving scroll plates 21 and stationary scroll plates 22. The moving scroll plates 21 are rotatably connected to the housing 1, and the stationary scroll plates 22 are fixedly connected to the housing 1. The corresponding moving scroll plates 21 and stationary scroll plates 22 together form a compression chamber communicating with the intake port 111 and the exhaust port 121. The drive unit is located inside the housing 1 and is used to drive all the moving scroll plates 21 to rotate.

[0037] In this embodiment, at least two moving scroll plates 21 and stationary scroll plates 22 are provided within the housing 1 of an independent compressor. Compared with setting multiple separate scroll compressors, this effectively reduces the number of accessories, lowers operating costs, and reduces space occupation, resulting in a more compact overall structure. This makes it suitable for applications with limited space, such as small air conditioning units and vehicle air conditioning systems, thus improving applicability. Furthermore, the compression assembly includes at least two corresponding moving scroll plates 21 and stationary scroll plates 22, meaning the housing 1 can have at least two compression chambers. All the moving scroll plates 21 are driven to rotate by a drive unit, and air is drawn into the housing 1 through the intake port 111. After being compressed simultaneously by multiple compression chambers, the air is continuously discharged outwards through the exhaust port 121, effectively improving compression efficiency, reducing refrigerant pressure loss and heat exchange loss inside the housing 1, increasing the energy efficiency ratio of the entire refrigeration system, reducing energy consumption, and maintaining high performance over a wider operating range.

[0038] In this embodiment, the driving component includes a through-shaft motor 31, which includes a motor housing 311 and a motor shaft 312 rotatably disposed within the motor housing 311. The motor housing 311 is fixed inside the outer casing 1, and both ends of the motor shaft 312 extend out of the motor housing 311. The compression assembly includes two corresponding moving scroll plates 21 and stationary scroll plates 22. The two moving scroll plates 21 are correspondingly disposed at opposite ends of the motor shaft 312, and each moving scroll plate 21 is connected to the corresponding end of the motor shaft 312. Specifically, when the motor shaft 312 of the through-shaft motor 31 rotates, it can simultaneously drive the two moving scroll plates 21 at both ends to rotate, thereby enabling the two compression chambers to compress air simultaneously.

[0039] In some optional embodiments, a sleeve 211 is provided on the side of the moving scroll plate 21 facing the motor shaft 312, and the moving scroll plate 21 is fixedly sleeved on the motor shaft 312 through the sleeve 211. The sleeve 211 enables effective fixation between the moving scroll plate 21 and the corresponding side of the motor shaft 312. Specifically, one of the motor shaft 312 and the sleeve 211 has a keyway, and the other has a corresponding connecting key 212, which is inserted into the keyway. The keyway is formed on the side wall of the sleeve 211, and the connecting key 212 is fixedly mounted on the motor shaft 312. When the sleeve 211 is sleeved on the motor shaft 312, the connecting key 212 is inserted into the keyway. This arrangement can prevent the moving scroll plate 21 from rotating relative to the motor shaft 312, ensuring reliable fixation between the moving scroll plate 21 and the motor shaft 312.

[0040] In some alternative embodiments, the moving scroll plate 21 has a connecting shaft (not shown) on the side facing the motor shaft 312, and the connecting shaft is connected to the corresponding end of the motor shaft 312 via a coupling. By providing a coupling, an effective connection between the moving scroll plate 21 and the corresponding side of the motor shaft 312 can also be achieved.

[0041] Optionally, a support bearing (not shown) is provided inside the housing 1, through which the motor shaft 312 passes and is rotatably connected to the housing 1. The support bearing effectively supports the suspended portion of the motor shaft 312 within the housing 1 and provides a rotatable connection with the housing 1, further ensuring structural reliability and stability.

[0042] In this embodiment, the scroll compressor applicable to all refrigerants also includes an electrical control 4, which drives the motor shaft 312 of the through-shaft motor 31 to rotate. Optionally, the electrical control 4 can be configured as a PCB circuit board.

[0043] In this embodiment, the number of intake ports 111 corresponds one-to-one with the number of moving scroll plates 21. The number of exhaust ports 121 corresponds one-to-one with the number of moving scroll plates 21.

[0044] In this embodiment, the outer casing 1 is provided with an air intake connector 11, and an air intake port 111 is opened on the air intake connector 11. The outer casing 1 is provided with an exhaust connector 12, and an exhaust port 121 is opened on the exhaust connector 12. By providing the air intake connector 11 and the exhaust connector 12, it is possible to connect to external pipelines as needed.

[0045] In some other alternative embodiments, refer to Figure 4As shown, the drive unit includes two non-through-shaft motors 32, each corresponding to one of the two moving scroll plates 21. It can be understood that the non-through-shaft motors 32 are conventional motors with only one end extending from the output shaft. The output shafts of both non-through-shaft motors 32 are connected to their corresponding moving scroll plates 21. By using two non-through-shaft motors 32, the rotation speed of the two moving scroll plates 21 can be independently controlled, thereby adapting to the compression conditions of the two compression chambers and improving performance to a certain extent.

[0046] In some alternative embodiments, the compression assembly may also be provided with two or more moving scroll disks 21 and stationary scroll disks 22, for example, three moving scroll disks 21 and stationary scroll disks 22. (Refer to...) Figure 5 As shown, corresponding to the three moving scroll plates 21 and the stationary scroll plate 22, the driving component includes a through-shaft motor 31 and a gear assembly 33 for transmitting power. Specifically, the gear assembly 33 is located inside the housing 1 and includes a first transmission gear 331, a second transmission gear 332, a third transmission gear 333, a fourth transmission gear 334, and a transmission shaft 335. Among the three moving scroll plates 21, two are connected via the through-shaft motor 31, while a transfer shaft 213 is provided on one side of the remaining moving scroll plate 21. Specifically, the first transmission gear 331 is fixedly mounted on the motor shaft 312 of the through-shaft motor 31, the fourth transmission gear 334 is fixedly mounted on the transfer shaft 213, and the second transmission gear 332 and the third transmission gear 333 are respectively fixedly mounted on the transmission shaft 335, which is rotatably connected to the housing 1. The first transmission gear 331 is meshed with the second transmission gear 332, and the third transmission gear 333 is meshed with the fourth transmission gear 334.

[0047] Specifically, when the through-shaft motor 31 is working, the motor shaft 312 rotates to drive the two moving scroll plates 21 connected to it to rotate. The rotation of the motor shaft 312 can transmit power to the other moving scroll plate 21 in sequence through the first transmission gear 331, the second transmission gear 332, the transmission shaft 335, the third transmission gear 333, the fourth transmission gear 334, and the adapter shaft 213, so that the three moving scroll plates 21 rotate at the same time and realize the synchronous operation of the three compression chambers.

[0048] In summary, the scroll compressor provided in this embodiment effectively enhances the cooling / heating capacity compared to conventional compressors. It features at least two corresponding moving scroll plates 21 and stationary scroll plates 22, allowing for simultaneous refrigerant compression. This enables the handling of a larger refrigerant flow rate within the same timeframe. The electrical control 4 allows for simultaneous control of at least two moving scroll plates 21, facilitating convenient control and high integration. Compared to using multiple individual scroll compressors, this design effectively reduces component requirements, lowers operating costs, and minimizes space requirements, resulting in a more compact overall structure. This makes it suitable for applications in space-constrained environments such as small air conditioning units and vehicle air conditioning systems, enhancing its applicability. Because at least two sets of moving scroll plates 21 and stationary scroll plates 22 operate simultaneously, the compression capacity is significantly enhanced. Therefore, it can rapidly compress and deliver the refrigerant to the heat exchanger after startup, allowing the indoor or cooled space to reach the set temperature more quickly. Furthermore, the compressor can be operated under partial load conditions, enabling flexible control of the two compression units and enhancing its practicality.

[0049] 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 compressor applicable to all refrigerants, characterized in that, include: The outer casing (1) has an air intake (111) and an exhaust (121); A compression assembly is located inside the housing (1). The compression assembly includes at least two moving scroll disks (21) and stationary scroll disks (22) that are arranged in a one-to-one correspondence. The moving scroll disks (21) are rotatably connected to the housing (1), and the stationary scroll disks (22) are fixedly connected to the housing (1). The corresponding moving scroll disks (21) and stationary scroll disks (22) together form a compression chamber that communicates with the intake port (111) and the exhaust port (121). The driving component, located inside the housing (1), is used to drive all of the moving scrolls (21) to rotate.

2. The scroll compressor applicable to all refrigerants according to claim 1, characterized in that, The driving component includes a through-shaft motor (31), which includes a motor housing (311) and a motor shaft (312) rotatably disposed in the motor housing (311). The motor housing (311) is fixed inside the outer casing (1), and both ends of the motor shaft (312) extend out of the motor housing (311). The compression assembly includes two moving scroll disks (21) and a stationary scroll disk (22) that are arranged in a one-to-one correspondence. The two moving scroll disks (21) are arranged at opposite ends of the motor shaft (312), and each moving scroll disk (21) is connected to the corresponding end of the motor shaft (312).

3. The scroll compressor applicable to all refrigerants according to claim 2, characterized in that, The moving scroll plate (21) has a sleeve (211) on the side facing the motor shaft (312), and the moving scroll plate (21) is fixedly sleeved on the motor shaft (312) through the sleeve (211).

4. The scroll compressor applicable to all refrigerants according to claim 3, characterized in that, One of the motor shaft (312) and the sleeve (211) is provided with a keyway, and the other is provided with a connecting key (212), which is inserted into the keyway.

5. The scroll compressor applicable to all refrigerants according to claim 2, characterized in that, The moving scroll plate (21) has a connecting shaft on the side facing the motor shaft (312), and the connecting shaft is connected to the corresponding end of the motor shaft (312) through a coupling.

6. The scroll compressor applicable to all refrigerants according to claim 2, characterized in that, The housing (1) is provided with a support bearing, and the motor shaft (312) passes through the support bearing and is rotatably connected to the housing (1) through the support bearing.

7. The scroll compressor applicable to all refrigerants according to claim 2, characterized in that, It also includes an electrical control (4) for driving the motor shaft (312) of the through-shaft motor (31) to rotate.

8. The scroll compressor applicable to all refrigerants according to claim 1, characterized in that, The number of air intakes (111) is set in a one-to-one correspondence with the number of moving vortex disks (21).

9. The scroll compressor applicable to all refrigerants according to claim 1, characterized in that, The number of exhaust ports (121) is set in a one-to-one correspondence with the number of moving vortex disks (21).

10. The scroll compressor applicable to all refrigerants according to claim 1, characterized in that, The outer shell (1) is provided with an air intake connector (11), and the air intake port (111) is opened on the air intake connector (11); the outer shell (1) is provided with an exhaust connector (12), and the exhaust port (121) is opened on the exhaust connector (12).

Images