Scroll compressor and air conditioner

Abstract

The application discloses a scroll compressor and an air conditioner, and relates to the technical field of scroll compressors, and in particular relates to a scroll compressor comprising a shell and a motor arranged in the shell, wherein an upper motor cavity is formed above the motor in the shell, a lower motor cavity is formed below the motor in the shell, an airflow channel is arranged between the motor and the inner wall of the shell, and the airflow channel is in communication with the upper motor cavity and the lower motor cavity respectively; and an oil baffle is arranged on the top of the motor. The scroll compressor provided by the application sets the oil baffle on the top of the motor, deflects and guides the high-speed rotating oil-gas mixed airflow in the upper motor cavity by using the guide surface of the flow guide plate, covers and opens the design of the shielding plate, controls the airflow path, actively separates the oil and gas by inertia and centrifugal force, efficiently separates the oil drops from the airflow and recycles the oil drops into the compressor, thereby significantly reducing the oil discharge rate under high-speed working conditions, effectively avoiding the problem of insufficient internal lubrication, and improving the lubrication stability, operation reliability and service life of the compressor.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more particularly to a scroll compressor and an air conditioner. Background Technology

[0002] Scroll compressors are widely used in air conditioning, refrigeration, and other fields due to their simple structure, stable operation, and high efficiency. To meet market demands for miniaturized equipment and high energy efficiency, scroll compressors are developing towards higher speeds and higher performance.

[0003] However, as compressor operating speeds increase (e.g., under high-frequency conditions), a prominent problem arises: the compressor's oil discharge rate increases significantly. During high-frequency operation, a large amount of lubricating oil is discharged outside the compressor along with the refrigerant, resulting in insufficient oil levels inside the compressor.

[0004] This excessively high oil discharge rate prevents the pump body and other moving parts inside the compressor from receiving adequate lubrication. Especially under harsh operating conditions of continuous high speed, this can easily lead to wear and even damage, severely impacting the long-term reliability and service life of the compressor. Therefore, effectively reducing the oil discharge rate of scroll compressors under high-speed conditions and ensuring the stability of their lubrication system is a pressing technical problem that needs to be solved in this field. Summary of the Invention

[0005] The main objective of this invention is to provide a scroll compressor and an air conditioner to solve the above-mentioned technical problems.

[0006] In a first aspect, the present invention provides a scroll compressor, including a housing and a motor disposed within the housing. An upper motor cavity is formed above the motor and a lower motor cavity is formed below the motor within the housing. An airflow channel is provided between the motor and the inner wall of the housing, and the airflow channel communicates the upper motor cavity and the lower motor cavity respectively.

[0007] An oil baffle is provided on the top of the motor, and the oil baffle includes:

[0008] A deflector, disposed in the airflow path between the upper cavity of the motor and the airflow channel, the deflector having a guiding surface for deflecting the airflow in the upper cavity of the motor; and

[0009] A baffle plate that at least partially covers the airflow channel, the baffle plate having an opening so that airflow deflected by the guide surface can enter the airflow channel through the opening.

[0010] The guide plate, the baffle plate below it, and the inner wall of the housing together form a guide channel. The guide channel has an inlet end that connects to the upper cavity of the motor and an outlet end that connects to the opening. The cross-sectional area of ​​the inlet end is larger than the cross-sectional area of ​​the outlet end.

[0011] The guide plate includes a guide portion extending upward from the baffle plate and a cover portion disposed at the top of the guide portion; the guide portion forms the guide surface near the wall of the housing, and the cover portion extends from the top of the guide portion toward the housing, and together with the guide surface, the baffle plate and the inner wall of the housing, forms the guide channel.

[0012] An open channel is formed between the wall of the flow guide away from the housing and the upper surface of the baffle plate, and the open channel is connected to the opening.

[0013] The guide plate, together with the baffle plate below it and the inner wall of the housing, form a guide groove. The guide groove is located on the circumferential side of the opening and communicates with the upper cavity of the motor. The guide plate has an interception part, which is disposed at the end of the guide groove to block the airflow entering the guide groove from the upper cavity of the motor from continuing to flow circumferentially and to deflect the airflow to the opening.

[0014] The oil baffle also includes an annular cover, which is disposed at the top of the stator of the motor. The cover, together with the baffle plate above it, the inner wall of the housing, and the top surface of the stator, form an oil collecting cavity. The oil collecting cavity is located between the opening and the airflow channel, and is connected to the opening and the airflow channel respectively.

[0015] The baffle is annular in shape, with its outer edge positioned close to the inner wall of the housing. Multiple openings are provided circumferentially along the outer edge of the baffle, and the number of guide plates corresponds to the number of openings.

[0016] The compressor further includes a main balance block disposed in the upper cavity of the motor and rotating together with the rotor of the motor; the baffle plate and the guide plate are both disposed around the outside of the main balance block, and the guiding direction of the guide surface is the same as the rotation direction of the rotor of the motor during operation.

[0017] The motor upper cavity is provided with a scroll compression assembly, which includes: a stationary scroll plate with a stationary exhaust port; a moving scroll plate that meshes with the stationary scroll plate to form a compression chamber; and an upper bracket that is fixed in the housing and supports the stationary scroll plate and the moving scroll plate.

[0018] In a second aspect, the present invention also provides an air conditioner, including a scroll compressor as described in the first aspect.

[0019] Beneficial technical effects of the present invention:

[0020] The scroll compressor provided by this invention, by setting an oil baffle on the top of the motor, uses the guide plate to deflect and guide the high-speed rotating oil-gas mixture in the upper cavity of the motor. Combined with the covering and opening design of the baffle, the forced airflow path is controlled, realizing active oil-gas separation by inertia and centrifugal force. This allows lubricating oil droplets to be efficiently separated from the airflow and recycled back into the compressor, thereby significantly reducing the oil discharge rate under high-speed operating conditions, effectively avoiding the problem of insufficient internal lubrication, and improving the lubrication stability, operational reliability and service life of the compressor. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the internal cross-section of a scroll compressor provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the interior of the casing of a scroll compressor provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the airflow direction on the stator and on the scroll compressor provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of an embodiment of the oil baffle in a scroll compressor provided by the present invention;

[0026] Figure 5 This is a schematic diagram of another embodiment of the oil baffle in the scroll compressor provided in this invention;

[0027] Figure 6 This is a schematic diagram of an air conditioner provided in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] In the diagram: 1-Stationary scroll, 2-Moving scroll, 3-Upper bracket, 4-Stator, 5-House, 10-Rotor, 11-Crankshaft, 12-Cross slip ring, 13-Upper cover, 14-Oil baffle, 15-Motor mounting bracket, 17-Main balance block;

[0030] 100-Oil collecting chamber, 101-Stationary disc exhaust port, 141-Guide plate, 141a-Inlet end, 141b-Outlet end, 142-Baffle plate, 143-Cover body, 144-Opening;

[0031] 161a - Guidance section, 161b - Interception section;

[0032] 200 - Upper cavity of motor, 300 - Lower cavity of motor, 301 - Flow channel, 400 - Airflow direction, 401 - Airflow passage, 500 - Scroll compressor, 510 - Motor, 600 - Air conditioner. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0035] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0036] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0037] Please also refer to Figures 1-4This invention provides a scroll compressor 500, including a housing 5 and a motor 510 disposed within the housing 5. An upper motor cavity 200 is formed above the motor 510 within the housing 5, and a lower motor cavity 300 is formed below the motor 510. An airflow channel 401 is provided between the motor 510 and the inner wall of the housing 5, the airflow channel 401 connecting the upper motor cavity 200 and the lower motor cavity 300 respectively. An oil baffle 14 is provided on the top of the motor 510. The oil baffle 14 includes: a guide plate 141 disposed in the airflow path between the upper cavity of the motor 200 and the airflow channel 401, the guide plate 141 having a guiding surface for deflecting the airflow in the upper cavity of the motor 200; and a baffle plate 142 at least partially covering the airflow channel 401, the baffle plate 142 having an opening 144 so that the airflow deflected by the guiding surface can enter the airflow channel 401 through the opening 144.

[0038] In this embodiment, the scroll compressor 500 mainly includes a housing 5, a motor 510 disposed inside the housing 5, and an oil baffle 14 disposed on the top of the motor 510.

[0039] Specifically, the housing 5 is a hollow container that houses the main working components of the scroll compressor 500. The motor 510 is fixedly mounted on the inner wall of the housing 5. The motor 510 includes a stator 4 and a rotor 10, wherein the stator 4 is fixed to the inner wall of the housing 5 by means of heat fitting or the like.

[0040] Within the internal space of the housing 5, with the motor 510 as the boundary, an upper motor cavity 200 is formed above the motor 510, and a lower motor cavity 300 is formed below the motor 510. The upper motor cavity 200 is used to receive the high-pressure airflow discharged from the scroll compressor assembly, and the lower motor cavity 300 serves as an oil storage area.

[0041] To guide the compressed high-pressure airflow from the upper chamber 200 of the motor to the lower chamber 300, an airflow channel 401 is provided between the outer peripheral wall of the motor 510 (specifically the stator 4) and the inner wall of the housing 5. The airflow channel 401 extends axially along the stator 4. The upper end of the airflow channel 401 is connected to the upper chamber 200 of the motor, and the lower end is connected to the lower chamber 300 of the motor, thus forming a fluid passage connecting the two chambers.

[0042] To address the issue of excessive oil discharge rate caused by the high-speed airflow carrying away the lubricating oil in the upper cavity 200 of the motor under high-frequency operating conditions, an oil baffle 14 is installed on the top of the motor 510. (See also...) Figure 4 The oil baffle 14 is used to separate and guide the oil-gas mixture in the upper cavity 200 of the motor, and specifically includes a guide plate 141 and a baffle plate 142.

[0043] The baffle plate 142 is annular and is disposed at the top of the stator 4, with its outer edge close to the inner wall of the housing 5. The baffle plate 142 at least partially covers the inlet of the airflow channel 401 to prevent most of the airflow from the upper cavity 200 from directly and unobstructedly entering the airflow channel 401. To allow the airflow to enter the airflow channel 401 after passing through the guide plate 141, the outer edge of the baffle plate 142 is provided with an opening 144.

[0044] The guide plate 141 is disposed in the airflow path between the upper cavity 200 of the motor and the airflow channel 401. In other words, most of the airflow flowing from the upper cavity 200 of the motor to the airflow channel 401 must first pass through the working area of ​​the guide plate 141. The guide plate 141 has a guiding surface for deflecting the airflow. When the airflow in the upper cavity 200 (mainly the circumferentially rotating airflow) flows towards the oil baffle 14, it will first come into contact with the guide plate 141. The guiding surface of the guide plate 141 will deflect and guide this part of the airflow, guiding it to the opening 144 on the baffle plate 142.

[0045] The working process of this embodiment is as follows: After the high-pressure oil-gas mixture discharged from the vortex compressor assembly enters the upper cavity 200 of the motor, it forms a rotating airflow due to the high-speed rotation of the rotor 10 of the motor 510. When this rotating airflow impacts the guide surface of the guide plate 141, its flow direction is deflected. This deflection effectively uses centrifugal force to throw the denser lubricating oil droplets in the airflow toward and adhere to the inner wall of the housing 5 or the surface of the guide plate 141, achieving preliminary oil-gas separation. After the airflow is deflected and separated by the guide surface, its oil content is significantly reduced. Subsequently, this "cleaner" airflow can smoothly pass through the opening 144 on the baffle plate 142 and finally enter the airflow channel 401, flowing toward the lower cavity 300 of the motor.

[0046] With the above structure, the oil baffle 14 of this embodiment actively guides and deflects the airflow using the guide plate 141, and works with the baffle plate 142 and its opening 144 to regulate the airflow path, forcing most of the airflow to go through an oil-gas separation process before entering the downstream channel, thereby effectively reducing the oil discharge rate of the compressor and improving the operating reliability of the compressor under high-frequency conditions.

[0047] In this embodiment, an oil baffle 14 is installed on the top of the motor 510, creating a fluid control path of "interception-deflection separation-directional discharge". First, the baffle 142 partially covers the airflow channel 401, blocking most of the path through which the airflow directly enters, forcibly transforming the originally disordered flow into a controlled flow. Second, the guide plate 141, located on the inevitable path of the airflow, actively deflects the high-speed rotating airflow using its guiding surface, separating the denser lubricating oil droplets from the airflow and adhering them to the wall surface through centrifugal and inertial action. Finally, the airflow, with its significantly reduced oil content after separation, can enter the downstream airflow channel 401 through the opening 144 on the baffle 142.

[0048] In this way, this embodiment converts high-speed airflow into the power to achieve oil-gas separation, thereby solving the problem of lubricating oil being carried away by the airflow, significantly reducing the oil discharge rate, and ensuring the lubrication requirements and operational reliability of the compressor under high-speed conditions.

[0049] In the oil-gas separation process of this embodiment, the high-speed airflow deflected by the guide plate 141 will separate the denser lubricating oil droplets from the airflow due to centrifugal and inertial effects, and cause these oil droplets to adhere to the inner wall of the housing 5 or the surface of the guide plate 141.

[0050] The adhering lubricating oil further aggregates into larger droplets. Driven by gravity and residual airflow, these droplets flow along the wall, enter the airflow channel 401 through opening 144, and ultimately deposit in the oil storage area of ​​the lower motor cavity 300, thus achieving internal recovery and recirculation of the lubricating oil. This mechanism significantly reduces the oil content (i.e., oil discharge rate) in the high-pressure exhaust gas finally discharged to the outside of the compressor, because the separated lubricating oil is no longer directly discharged with the airflow but is guided back to the oil sump at the bottom of the compressor for subsequent lubrication cycles, effectively avoiding the compressor oil shortage problem caused by excessive oil loss.

[0051] In one embodiment, the guide plate 141, the baffle plate 142 below it, and the inner wall of the housing 5 together form a guide channel. The guide channel has an inlet end that connects to the upper cavity 200 of the motor and an outlet end that connects to the opening 144. The cross-sectional area of ​​the inlet end is larger than the cross-sectional area of ​​the outlet end.

[0052] In this embodiment, the guide plate 141 of the oil baffle 14, together with the baffle plate 142 below it and the inner wall of the housing 5, form a guide channel. This guide channel is a semi-enclosed airflow passage that extends partially along the circumference of the oil baffle 14 and is used to guide the rotating airflow in the upper cavity 200 of the motor in a directional manner.

[0053] The guide channel has an inlet end 141a and an outlet end 141b. The inlet end 141a connects to the upper cavity 200 of the motor and receives the rotating airflow from the upper cavity 200. The outlet end 141b connects to an opening 144 on a baffle plate 142, allowing the airflow in the guide channel to enter the downstream airflow channel 401 through the opening 144. Specifically, the cross-sectional area of ​​the inlet end 141a of the guide channel is larger than that of the outlet end 141b. This gradually changing cross-sectional area design makes the guide channel generally tapered, meaning the channel cross-section gradually decreases from the inlet end 141a to the outlet end 141b. Here, "connection" specifically refers to the outlet end 141b of the guide channel being adjacent to one end of the opening 144 on the baffle plate 142, such that this end of the opening 144 is located inside the guide channel or directly connected to it, such as... Figure 3 The end shown is located inside the guide channel (i.e., it overlaps with the exit end of the guide channel).

[0054] This arrangement ensures that the airflow flowing out of the guide channel can seamlessly transition into the opening 144, avoiding disordered diffusion or turbulence loss of the airflow at the outlet. Specifically, the outlet end 141b is adjacent to the edge of the opening 144 and covers one end of the opening 144 from the periphery, thereby directing the accelerated airflow in the guide channel directly to the opening 144, achieving directional discharge of airflow and oil droplets.

[0055] The guide plate 141 extends upward from the upper surface of the baffle plate 142 and is positioned close to the inner wall of the housing 5. The guiding surface of the guide plate 141 forms the inner wall of the guide channel, while the upper surface of the baffle plate 142 serves as the bottom wall of the guide channel, and the inner wall of the housing 5 serves as the outer wall of the guide channel. In this way, the three together enclose the aforementioned guide channel. The inlet end 141a of the guide channel is open towards the internal space of the upper cavity 200 of the motor to capture the airflow rotating in the circumferential direction; the outlet end 141b directly leads to the opening 144, ensuring that the airflow flows smoothly out after passing through the channel.

[0056] The working process of this embodiment is as follows: After the high-pressure oil-gas mixture discharged from the vortex compressor assembly enters the upper cavity 200 of the motor, it forms a circumferential rotating airflow under the high-speed rotation of the rotor 10 and the main balancing block 17 on it. A portion of this rotating airflow enters the inlet end 141a of the guide channel. Due to the large cross-sectional area of ​​the inlet end 141a, it can capture more airflow, and the gradually decreasing cross-sectional area design of the channel towards the outlet end 141b will cause the airflow to gradually accelerate during the flow process.

[0057] This accelerated flow enhances the centrifugal force and inertial separation effect in the airflow: denser lubricating oil droplets are more easily thrown towards the wall of the guide channel (especially the inner wall of the housing 5) under the impetus of the accelerated airflow, thus separating from the airflow and adhering to the wall. Subsequently, these separated lubricating oil droplets flow along the wall, gather into larger droplets, and under the impetus of gravity and airflow, are finally deposited in the lower cavity 300 of the motor through the airflow channel 401 for recycling.

[0058] After being processed by the guide channel, the oil content of the airflow is significantly reduced. It then enters the airflow channel 401 through the opening 144 and flows to the lower chamber 300 of the motor for further oil separation. At the same time, due to the guiding effect of the guide channel, the disordered airflow that might have directly impacted the baffle plate 142 and disturbed the oil accumulation in the upper chamber 200 of the motor is forcibly transformed into an ordered accelerated flow path. This not only improves the oil-gas separation efficiency but also prevents the lubricating oil from being directly carried away by the high-speed airflow, thereby further reducing the oil discharge rate of the compressor.

[0059] Through the aforementioned structure, the guide channel in this embodiment utilizes a gradually changing cross-sectional area design to achieve the capture, acceleration, and directional separation of airflow. Specifically, the larger inlet end 141a ensures sufficient capture capacity, while the tapering channel structure amplifies the centrifugal separation effect by accelerating the airflow, making it easier for lubricating oil droplets to detach from the airflow and adhere to the wall surface. This design not only optimizes the regularity of the airflow path but also enhances the physical mechanism of oil-gas separation, thereby effectively reducing the oil discharge rate under high-frequency operating conditions and improving the lubrication reliability and overall performance of the compressor.

[0060] In one embodiment, the guide plate 141 includes a guide portion extending upward from the baffle plate 142 and a cover portion disposed at the top of the guide portion; the guide portion forms the guide surface near the wall of the housing 5, and the cover portion extends from the top of the guide portion toward the housing 5, and together with the guide surface, the baffle plate 142 and the inner wall of the housing 5, forms the guide channel.

[0061] In this embodiment, the guide plate 141 includes a guide portion and a cover portion, wherein the guide portion extends upward from the upper surface of the baffle plate 142, and the cover portion is disposed at the top of the guide portion.

[0062] The guide section is an upwardly extending plate-like structure, with the guide surface formed on the side near the inner wall of the housing 5. This guide surface is arc-shaped or inclined, extending circumferentially to deflect and guide the airflow entering the guide channel. The cover plate extends horizontally or slightly inclined from the top of the guide section toward the housing 5 (i.e., radially outward), thus covering the top of the guide section and forming the top wall of the guide channel.

[0063] With the above structure, the guide surface of the cover plate and the guide surface of the flow guide, the upper surface of the baffle plate 142, and the inner wall of the housing 5 together enclose the guide channel. Specifically, the inner wall of the housing 5 serves as the outer wall of the guide channel, the guide surface of the flow guide serves as the inner wall, the upper surface of the baffle plate 142 serves as the bottom wall, and the cover plate serves as the top wall, thus forming a semi-enclosed channel that is enclosed on all four sides.

[0064] The inlet end 141a of the guide channel is located at the beginning of the flow guide and cover plate, opening towards the upper cavity 200 of the motor; the outlet end 141b is located at the end of the flow guide and cover plate, connecting with the opening 144 on the baffle plate 142. The cross-sectional area of ​​the guide channel gradually decreases from the inlet end 141a to the outlet end 141b. This tapering design is mainly achieved by the guide surface of the flow guide gradually tilting or bending outward (closer to the inner wall of the housing 5).

[0065] The working process of this embodiment is as follows: After the high-pressure oil-gas mixture enters the upper cavity 200 of the motor, it forms a rotating airflow. A portion of this rotating airflow enters the guide channel from the inlet end 141a. Inside the channel, the airflow flows along the guide surface. Due to the coverage of the cover plate, the airflow is constrained inside the channel and cannot escape upwards, thus forcing the airflow to accelerate in the narrowing channel. This acceleration process enhances the centrifugal separation effect: lubricating oil droplets are thrown towards the guide surface or the inner wall of the housing 5 during high-speed flow, adhering and accumulating into oil droplets. Subsequently, these oil droplets flow along the wall surface, with some entering the airflow channel 401 through the outlet end 141b and the opening 144; the other part, because the baffle plate 142 does not completely cover the airflow channel 401, can flow directly down the inner wall of the housing 5 under the action of gravity, and finally deposit in the lower cavity 300 of the motor. The separated airflow has a lower oil content and continues to flow downwards.

[0066] Through the above structure, the guide plate 141 of this embodiment constructs a guiding channel by combining the guide portion and the cover plate portion. The guiding surface of the guide portion provides a deflection path, while the cover plate portion ensures the constraint and directional flow of the airflow. This design not only enhances the efficiency of oil-gas separation but also prevents disordered airflow disturbance, thereby further reducing the oil discharge rate and improving the reliability and lubrication performance of the compressor under high-frequency operating conditions.

[0067] In one embodiment, an open channel is formed between the wall of the guide portion away from the housing 5 and the upper surface of the baffle plate 142, and the open channel communicates with the opening 144.

[0068] In this embodiment, an open channel is formed between the outer wall of the flow guide (i.e., the side wall away from the inner wall of the housing 5) and the upper surface of the baffle plate 142.

[0069] The open channel is a trough-shaped structure with an open top, its bottom formed by the upper surface of the baffle plate 142, and one side wall provided by the outer wall of the guide section. Because its top is open to the upper cavity 200 of the motor, rotating airflow that does not enter the guide channel is allowed to flow along the outer wall of the guide section. The open channel extends along the outer wall of the guide section and eventually communicates with the opening 144 on the baffle plate 142, providing an additional airflow path for the separated oil droplets.

[0070] The working process of this embodiment is as follows: After the high-pressure oil-gas mixture enters the upper cavity 200 of the motor, it forms a rotating airflow along the circumference under the high-speed rotation of the rotor 10 and its main balancing block 17. The oil-gas separation process of this rotating airflow is mainly achieved through two parallel paths:

[0071] The first path involves separation via a guide channel. A portion of the rotating airflow enters the guide channel formed by the guide section, cover plate, baffle plate 142, and inner wall of the housing 5 from the inlet end 141a. Within this channel, the airflow is accelerated and forcibly deflected, and the lubricating oil droplets are thrown against the wall surface for separation through centrifugal force.

[0072] The second path involves separation through an open channel. Meanwhile, another portion of the rotating airflow that doesn't enter the guide channel continues to flow circumferentially and sweeps across the outer wall of the guide section. Due to the forced deflection generated by the outer wall of the guide section and the inertia of the circumferential flow, the oil mist carried in this portion of the airflow directly impacts and adheres to the outer wall of the guide section, thus accumulating into larger lubricating oil droplets.

[0073] Under the influence of gravity and the subsequent airflow, these newly formed oil droplets flow down the outer wall of the guide section into the open channel below, where they are guided to opening 144. The separated airflow, with a reduced oil content, continues to flow downstream. This open channel design provides an additional oil droplet collection path, enhancing the oil-gas separation efficiency, especially under high-frequency conditions with significant airflow disturbances, enabling the capture of more escaping oil droplets and preventing them from being carried away by the airflow.

[0074] Through the above structure, the open channel in this embodiment utilizes the auxiliary path formed by the outer wall of the guide section and the upper surface of the baffle plate 142 to achieve secondary collection and directional guidance of separated oil droplets. This design not only supplements the function of the guide channel but also improves the overall oil-gas separation efficiency: even if some oil droplets do not completely follow the guide channel, they can still pass through the open channel and the guide opening 144, thereby further reducing the oil discharge rate and ensuring the lubrication reliability and overall performance of the compressor during high-speed operation.

[0075] In this embodiment, one end of the open channel is adjacent to the outlet end 141b of the guide channel, and the other end leads directly to the opening 144, ensuring that the fluid in the open channel can be smoothly guided to the airflow channel 401. The outer wall of the guide portion can be slightly inclined outward to also deflect the airflow.

[0076] In one embodiment, the guide plate 141, the baffle plate 142 below it, and the inner wall of the housing 5 together form a guide groove. The guide groove is located on one circumferential side of the opening 144 and communicates with the upper cavity of the motor 200. The guide plate 141 has an interception part 161b, which is disposed at the end of the guide groove to block the airflow entering the guide groove from the upper cavity of the motor 200 from continuing to flow circumferentially and to deflect the airflow to the opening 144.

[0077] In this embodiment, as Figure 5 As shown in the figure, Figure 4 An alternative implementation is described. The guide plate 141 of the oil baffle 14, together with the baffle plate 142 below it and the inner wall of the housing 5, form a guide groove. This guide groove is a groove-shaped structure that extends partially circumferentially along the oil baffle 14, located on one circumferential side of the opening 144 on the baffle plate 142, and directly connects to the upper cavity 200 of the motor, for capturing and guiding the rotating airflow from the upper cavity 200 of the motor. The top of this groove-shaped structure is open, serving as an open guide structure.

[0078] The guide plate 141 is generally L-shaped, including a circumferentially extending guide portion 161a and an intercepting portion 161b extending into the inner wall of the housing 5. The intercepting portion 161b is located at the end of the guide groove (i.e., the end furthest from the guide groove inlet) to block the airflow entering the guide groove from the upper cavity 200 from continuing its circumferential flow and deflect the airflow to the opening 144. Specifically, the intercepting portion 161b bends outward from the end of the guide portion 161a, forming a blocking wall. When the airflow flows along the guide groove to the end, it impacts the intercepting portion 161b, thus being forced to change direction and deflect downward into the opening 144.

[0079] The bottom of the guide groove is formed by the upper surface of the baffle plate 142, the outer sidewall is provided by the inner wall of the housing 5, and the inner sidewall is formed by the guide portion 161a (including its guide surface) of the guide plate 141. One end of the guide groove serves as an inlet, opening towards the direction of the rotating airflow in the upper cavity 200 of the motor to capture the airflow flowing in the circumferential direction; the other end is closed by the interception portion 161b, but communicates with the opening 144 through a deflection path.

[0080] The working process of this embodiment is as follows: After the high-pressure oil-gas mixture enters the upper cavity 200 of the motor, it forms a circumferentially flowing rotating airflow driven by the high-speed rotation of the rotor 10 and the main balance block 17 on it. Part of this rotating airflow enters the inlet of the guide groove and flows circumferentially within the guide groove. During the flow, lubricating oil droplets in the airflow are thrown against the wall of the guide groove (especially the inner wall of the housing 5) due to centrifugal force and inertia, adhering and accumulating into oil droplets. When the airflow reaches the end of the guide groove, it will collide with the interception part 161b. The interception part 161b blocks the airflow from continuing to advance circumferentially and forces the airflow to deflect downward, thereby entering the airflow channel 401 through the opening 144. Subsequently, these oil droplets flow along the wall, with some entering the airflow channel 401 through the opening 144; the other part, because the baffle plate 142 does not completely cover the airflow channel 401, can flow directly down the inner wall of the housing 5 under the action of gravity and finally deposit in the lower cavity 300 of the motor.

[0081] Through the above structure, the combination of the guide groove and the interceptor 161b in this embodiment provides a forced deflection oil-gas separation path. The guide groove captures the rotating airflow and initially separates the oil droplets, while the interceptor 161b ensures that the airflow does not escape disorderly but is deflected to the opening 144. This design effectively prevents the airflow from disturbing the oil accumulation in the upper cavity 200 of the motor, and is especially suitable for high-frequency operating conditions. It can significantly reduce the oil discharge rate and improve the lubrication reliability and overall performance of the compressor.

[0082] In one embodiment, the oil baffle 14 further includes an annular cover 143, which is disposed at the top of the stator 4 of the motor 510; the cover 143, together with the baffle plate 142 above it, the inner wall of the housing 5, and the top surface of the stator 4, together form an oil collecting cavity 100; the oil collecting cavity 100 is located between the opening 144 and the airflow channel 401, and is connected to the opening 144 and the airflow channel 401 respectively.

[0083] In this embodiment, the oil baffle 14 includes a guide plate 141 and a baffle plate 142, as well as an annular cover 143. The cover 143 has an annular structure and is disposed at the top of the stator 4. Specifically, the cover 143 is fixedly connected to the outer edge of the motor mounting bracket 15 located at the top of the stator 4, and its upper end is connected to the lower surface of the baffle plate 142, thereby being integrally or fixedly assembled with the baffle plate 142.

[0084] The cover 143, together with the baffle plate 142 above it, the inner wall of the housing 5, and the top surface of the stator 4, forms an oil collecting chamber 100. This oil collecting chamber 100 is an annular space located between the opening 144 on the baffle plate 142 and the airflow channel 401. Specifically, the outer wall of the oil collecting chamber 100 is formed by the inner wall of the housing 5, the inner wall is provided by the cover 143, the bottom is the top surface of the stator 4, and the top is the baffle plate 142, thus forming a chamber for collecting and temporarily storing lubricating oil. The upper part of the oil collecting chamber 100 communicates with the upper cavity 200 of the motor through the opening 144, and the lower part communicates with the lower cavity 300 of the motor through the airflow channel 401. In this way, the oil collecting chamber 100 acts as a buffer zone for oil-gas separation, receiving the oil-gas mixture entering from the opening 144 and further separating it to guide the airflow and lubricating oil downstream respectively.

[0085] The annular design of the cover 143 is adapted to the circumference of the stator 4. The baffle plate 142 partially covers the upper part of the oil collection cavity 100, so that the oil droplets on the inner wall of the housing 5 can fall into the oil collection cavity 100, while allowing controlled airflow to enter through the opening 144, thereby avoiding disorderly disturbance of airflow in the upper cavity 200 of the motor.

[0086] The working process of this embodiment is as follows: After the high-pressure oil-gas mixture discharged from the vortex compressor assembly enters the upper cavity 200 of the motor, it forms a rotating airflow under the high-speed rotation of the rotor 10 and the main balance block 17 on it. This rotating airflow comes into contact with the guiding surface of the guide plate 141, is deflected and guided to the opening 144 on the baffle plate 142. During this process, the lubricating oil droplets in the airflow are initially separated due to centrifugal force and inertia, and some oil droplets adhere to the guide plate 141 and the inner wall of the housing 5.

[0087] The airflow, with reduced oil content after separation, enters the lower oil collecting chamber 100 through the opening 144 on the baffle plate 142. Within the relatively large space of the oil collecting chamber 100, the airflow entering through the opening 144 experiences a decrease in velocity and pressure stabilization. This facilitates the settling of remaining, finer lubricating oil droplets due to gravity to the bottom (top surface of the stator 4) and the inner wall of the chamber, where they accumulate into an oil layer and flow into the lower motor cavity 300 for recovery via the airflow channel 401. Simultaneously, the cleaner airflow after separation continues to flow downwards from the oil collecting chamber 100 through the airflow channel 401 to the lower motor cavity 300 for further oil separation.

[0088] The design of the oil collecting chamber 100 effectively prevents the lubricating oil in the upper cavity 200 of the motor from being directly carried away by the high-speed airflow. This is because most oil droplets are initially separated before entering the oil collecting chamber 100 and further deposited within it, thus significantly reducing the oil content in the final exhaust gas. Furthermore, lubricating oil droplets separated from the upper cavity 200, whether flowing in through the opening 144 or directly down the inner wall of the housing 5, are collected in the oil collecting chamber 100. These droplets converge within the chamber, forming larger droplets or oil films, which, under the influence of gravity and subsequent airflow, flow back to the oil sump in the lower cavity 300 of the motor along the airflow channel 401.

[0089] Through the above structure, the oil baffle 14 of this embodiment utilizes the annular cover 143 to construct a dedicated oil collecting chamber 100, serving as a buffer zone for oil-gas separation. This oil collecting chamber 100 not only collects and temporarily stores oil droplets but also achieves orderly return of lubricating oil through its connection with the airflow channel 401. This design enhances the oil-gas separation efficiency under high-frequency operating conditions, prevents airflow disturbance of accumulated oil, further reduces the oil discharge rate, and improves the lubrication reliability and overall operational stability of the compressor.

[0090] In one embodiment, the baffle plate 142 is annular, and the outer edge of the baffle plate 142 is disposed close to the inner wall of the housing 5; a plurality of openings 144 are provided circumferentially at the outer edge of the baffle plate 142, and the number of guide plates 141 corresponds to the number of openings 144.

[0091] In this embodiment, the baffle plate 142 is annular and is fixed to the top of the cover 143. The outer edge of the baffle plate 142 is adjacent to the inner wall of the housing 5, with a certain gap between them. This ensures that disordered airflow from the upper cavity 200 of the motor can be effectively blocked from directly entering the airflow channel 401, while also ensuring that oil accumulated on the inner wall of the housing 5 can fall into the oil collection cavity 100 through the gap. In particular, multiple openings 144 are evenly distributed circumferentially along the outer edge of the baffle plate 142. These openings 144 are arc-shaped cuts and are arranged at intervals along the circumference of the baffle plate 142. The size of each opening 144 is adapted to the local airflow passage to ensure overall flow resistance balance.

[0092] The number of guide vanes 141 corresponds one-to-one with the number of openings 144, meaning that an independent guide vane 141 is provided above or upstream of each opening 144. These guide vanes 141 extend upward from the upper surface of the baffle plate 142 and are distributed circumferentially, aligned with the positions of the openings 144 to form multiple independent flow paths. Each guide vane 141 has a guiding surface for deflecting local airflow into the corresponding opening 144. This correspondence structure of multiple guide vanes 141 and multiple openings 144 can be combined with a tapered guide channel or guide groove. For example, each guide vane 141, together with the baffle plate 142 below it and the inner wall of the housing 5, forms a local guide channel or guide groove, ensuring that the airflow is independently deflected and separated within each unit.

[0093] The working process of this embodiment is as follows: After the high-pressure oil-gas mixture enters the upper cavity 200 of the motor, it forms a rotating airflow and other disordered airflows under the high-speed rotation of the rotor 10 of the motor 510 and its main balance block 17. These airflows are captured by multiple guide plates 141 distributed around the baffle plate 142. The guiding surface of each guide plate 141 deflects the local airflow and guides it to the corresponding opening 144.

[0094] During the deflection process, lubricating oil droplets in the airflow are thrown towards the inner wall of the housing 5 or the surface of the guide plate 141 due to centrifugal force and inertia, achieving initial separation. The separated airflow enters the airflow channel 401 evenly through multiple openings 144, avoiding flow concentration and pressure unevenness at a single opening 144. Subsequently, the separated oil droplets flow along the inner wall of the housing 5 or the baffle plate 142 under the action of gravity or driven by the subsequent airflow, enter the oil collection chamber 100, and finally deposit in the lower cavity 300 of the motor for recycling after passing through the airflow channel 401. At the same time, due to the circumferential multi-point distribution of the openings 144, the overall airflow path is more uniform, reducing the disturbance of local turbulence to the oil accumulation in the upper cavity 200 of the motor.

[0095] Through the above structure, the annular baffle 142 of this embodiment, combined with multiple openings 144 and corresponding guide plates 141, constructs a multi-channel, evenly distributed oil-gas separation component. This arrangement not only enhances the capture and deflection efficiency of the airflow but also optimizes the overall flow resistance distribution, avoiding the bottleneck effect under a single path. It is particularly suitable for handling large-flow airflow under high-frequency operating conditions, thereby further reducing the oil discharge rate and improving the lubrication reliability and operational stability of the compressor.

[0096] In one embodiment, the compressor further includes a main balance block 17 disposed within the upper cavity 200 of the motor and rotating together with the rotor 10 of the motor 510; the baffle plate 142 and the guide plate 141 are both disposed around the outside of the main balance block 17, and the guiding direction of the guiding surface is the same as the rotation direction of the rotor 10 of the motor 510 during operation.

[0097] In this embodiment, the compressor further includes a main balancing block 17 disposed within the upper cavity 200 of the motor and rotating together with the rotor 10. The main balancing block 17 is fixedly installed on the top of the rotor 10 to balance the dynamic unbalanced force of the rotor 10 when it rotates at high speed, and at the same time assists in the centrifugal separation of the airflow.

[0098] Both the baffle plate 142 and the guide plate 141 are arranged around the outside of the main balance block 17. Specifically, the baffle plate 142 is annular and arranged circumferentially along the top of the stator 4. Its position is slightly lower than the main balance block 17, and its inner edge maintains an appropriate radial gap with the outer periphery of the main balance block 17 to avoid interfering with rotation. Multiple guide plates 141 are provided, all extending upward from the baffle plate 142 and arranged circumferentially below the outer side of the main balance block 17, also maintaining a radial gap with the main balance block 17. This arrangement ensures that the high-speed rotating airflow thrown out from the main balance block 17 will inevitably impact the oil baffle 14, thereby being effectively captured and processed.

[0099] Specifically, the guiding direction of the guide surface (the inner wall surface forming the guide channel) of the baffle 141 is the same as the rotation direction of the rotor 10 and the main balancing block 17 during operation. Here, "operation" refers to the normal operation of the scroll compressor 500. For example, during normal operation, the rotor 10 rotates clockwise, and the arc or slope design of the guide surface conforms to this direction, guiding the airflow from the inlet end 141a in a curved or inclined manner towards the outlet end 141b, thereby enhancing the centrifugal effect of the airflow. This directional consistency ensures that the baffle 141 can work in synergy with the rotation of the main balancing block 17, rather than generating resistance or turbulence that would make the airflow more irregular. In this embodiment, the same rotation direction can be understood as the curvature or slope of the guide surface being approximately the same as the rotation trend of the airflow. As the airflow moves along this guide surface, its path is forcibly changed (see...). Figure 4 The direction of airflow in the air changes from a disordered state to a relatively ordered state.

[0100] In this embodiment, the arrangement of the main balance block 17, the baffle plate 142 and the guide plate 141 is suitable for various flow guiding structures, and the tapered guide channel or guide groove in the aforementioned embodiment ensures design compatibility.

[0101] The working process of this embodiment is as follows: After the high-pressure oil-gas mixture discharged from the vortex compressor assembly enters the upper cavity 200 of the motor, it forms a strong rotating airflow under the high-speed rotation of the main balance block 17 and the rotor 10. This rotating airflow flows outside the main balance block 17 and first undergoes preliminary oil-gas separation under the action of centrifugal force: the denser lubricating oil droplets are thrown towards the inner wall of the housing 5 or the outer wall of the guide plate 141. Subsequently, the airflow comes into contact with the guide plate 141 surrounding the outer side of the main balance block 17. Since the guiding direction of the guide surface is the same as the rotation direction, the airflow is smoothly captured and deflected into the guide channel (or guide groove), where it is further accelerated and separated. The separated lubricating oil droplets adhere to the guide surface or the inner wall of the housing 5, gather into oil droplets, and enter the airflow channel 401 through the outlet end 141b and the opening 144; some oil droplets can flow directly along the inner wall of the housing 5 under the action of gravity and deposit in the oil collection cavity 100. The oil content of the airflow after multi-stage separation is significantly reduced, and it continues to flow downward.

[0102] Through the above structure, the surrounding arrangement of the main balance block 17, the baffle plate 142, and the guide plate 141, as well as the consistency between the direction of the guiding surface and the direction of rotation, achieves a highly efficient centrifugal oil separation mechanism. The main balance block 17 not only balances the rotor 10 but also drives the rotational separation of the airflow; the guide plate 141 follows this rotation, enhancing the directional guidance and separation effect. This synergistic design effectively reduces the oil discharge rate, especially under high-frequency operating conditions, prevents the airflow from disturbing the oil accumulation in the upper cavity 200 of the motor, and improves the lubrication reliability and overall operating efficiency of the compressor.

[0103] In one embodiment, a scroll compression assembly is disposed above the upper cavity 200 of the motor. The scroll compression assembly includes: a stationary scroll 1 having a stationary exhaust port 101; a moving scroll 2 engaging with the stationary scroll 1 to form a compression cavity; and an upper bracket 3 fixed within the housing 5 and supporting the stationary scroll 1 and the moving scroll 2.

[0104] In this embodiment, a scroll compressor assembly is provided above the upper cavity 200 of the motor. The scroll compressor assembly is the compression mechanism of the compressor, which is used to draw in low-pressure refrigerant gas, compress it and discharge high-pressure gas, and finally guide it to the upper cavity 200 of the motor.

[0105] The vortex compression assembly includes a stationary vortex disk 1, a moving vortex disk 2, and an upper support 3. The stationary vortex disk 1 is fixedly mounted on the upper support 3 and has a stationary disk exhaust port 101 for discharging compressed high-pressure gas. The vortex profile of the stationary vortex disk 1 is helical, forming part of a compression chamber inside. The moving vortex disk 2 meshes with the stationary vortex disk 1, and its vortex profile is opposite to that of the stationary vortex disk 1, with a phase angle difference of 180 degrees, thus forming a series of mutually isolated crescent-shaped compression chambers with continuously changing volumes between them. The moving vortex disk 2 is driven by a crankshaft 11 and connected to the rotor 10, achieving translational rotational motion. The upper support 3 is fixed to the inner wall of the housing 5, for example, by spot welding, and supports the stationary vortex disk 1 and the moving vortex disk 2. The space between the upper support 3 and the motor 510 is the upper motor cavity 200. The upper support 3 has a flow channel 301 for guiding the high-pressure gas discharged from the stationary disk exhaust port 101 to the upper motor cavity 200.

[0106] The working process of this embodiment is as follows: When the compressor is running, the motor 510 drives the crankshaft 11 to rotate. The crankshaft 11 drives the moving scroll 2 to perform translational motion around the center of the crankshaft 11 with a fixed radius under the anti-rotation restriction of the cross slip ring 12. The low-pressure refrigerant gas entering from the suction pipe is drawn into the crescent-shaped compression chamber formed by the moving scroll 2 and the stationary scroll 1. As the moving scroll 2 moves, the volume of the compression chamber gradually decreases, and the gas is compressed to a high-pressure state. Subsequently, the high-pressure gas is discharged through the stationary scroll exhaust port 101, enters the cavity between the stationary scroll 1 and the upper cover 13, and then enters the upper cavity 200 of the motor through the flow groove 301 of the stationary scroll 1 and the upper bracket 3. The high-pressure oil-gas mixture entering the upper cavity 200 of the motor undergoes oil-gas separation under the action of the oil baffle 14: the airflow contacts the guide surface of the guide plate 141, is deflected, and enters the airflow channel 401 through the opening 144 on the baffle plate 142, and finally flows to the lower cavity 300 of the motor for further oil separation and discharge.

[0107] By combining the above structure with the oil baffle 14, the oil discharge rate under high-frequency operating conditions is effectively reduced, and the overall reliability and lubrication performance of the compressor are improved.

[0108] like Figure 6 As shown, corresponding to the scroll compressor 500 above, this embodiment of the invention also provides an air conditioner 600, which includes the scroll compressor 500 of any of the foregoing embodiments.

[0109] In this embodiment, the air conditioner 600 is a refrigeration cycle system device, mainly including an evaporator, a condenser, a throttling device (not shown in the figure) and the scroll compressor 500, wherein the scroll compressor 500 serves as a power component for compressing refrigerant gas to achieve heat transfer and circulation.

[0110] The scroll compressor 500 of the air conditioner 600 is installed in the circuit of the refrigeration cycle system. Its suction pipe is connected to the evaporator to draw in low-temperature, low-pressure refrigerant gas; its discharge pipe is connected to the condenser to discharge high-temperature, high-pressure compressed gas. The internal structure of the scroll compressor 500 is as described in the previous embodiment, including a housing 5, a motor 510, an upper motor chamber 200, a lower motor chamber 300, an airflow passage 401, and an oil baffle 14 (including a guide plate 141 and a baffle plate 142). Through the guiding and separation mechanism of the oil baffle 14, the scroll compressor 500 can effectively reduce the oil discharge rate under high-frequency operating conditions, preventing lubricating oil from being carried away by the high-speed airflow, thereby ensuring the stable operation of the system.

[0111] The working process of this embodiment is as follows: When the air conditioner 600 starts, the scroll compressor 500 operates, and the motor 510 drives the moving scroll 2 to mesh with the stationary scroll 1 to compress the refrigerant gas. The high-pressure gas is discharged from the stationary scroll exhaust port 101 and enters the upper chamber 200 of the motor. Under the action of the oil baffle 14, oil-gas separation occurs: the rotating airflow is deflected by the guide surface of the guide plate 141, enters the airflow channel 401 through the opening 144 on the baffle plate 142, and is finally discharged to the condenser. The separated lubricating oil flows back to the lower chamber 300 of the motor, realizing internal circulation. This mechanism ensures that the air conditioner 600 is less prone to oil shortage failure under high frequency or high temperature environments, improving the cooling efficiency and lifespan of the system.

[0112] Through the above structure, the air conditioner 600 of this embodiment utilizes the oil baffle 14 design of the scroll compressor 500 to effectively solve the oil discharge rate problem under high-frequency operating conditions and improve the overall reliability of the unit.

[0113] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A scroll compressor, characterized in that, The device includes a housing and a motor disposed within the housing. An upper motor cavity is formed above the motor and a lower motor cavity is formed below the motor within the housing. An airflow channel is provided between the motor and the inner wall of the housing, and the airflow channel connects the upper motor cavity and the lower motor cavity respectively. An oil baffle is provided on the top of the motor, and the oil baffle includes: A deflector is disposed in the airflow path between the upper cavity of the motor and the airflow channel, and the deflector has a guiding surface for deflecting the airflow in the upper cavity of the motor. as well as A baffle plate that at least partially covers the airflow channel, the baffle plate having an opening so that airflow deflected by the guide surface can enter the airflow channel through the opening; The guide plate includes a guide portion extending upward from the baffle plate and a cover portion disposed at the top of the guide portion; the guide portion forms the guide surface near the wall of the housing, and the cover portion extends from the top of the guide portion toward the housing and together with the guide surface, the baffle plate and the inner wall of the housing to form a guide channel, the guide channel having an inlet end communicating with the upper cavity of the motor and an outlet end connected to the opening; An open channel is formed between the wall surface of the flow guide away from the housing and the upper surface of the baffle plate, and the open channel communicates with the opening.

2. The scroll compressor according to claim 1, characterized in that, The cross-sectional area of ​​the inlet end is larger than the cross-sectional area of ​​the outlet end.

3. The scroll compressor according to claim 1, characterized in that, The oil baffle also includes an annular cover, which is disposed at the top of the stator of the motor; the cover, together with the baffle plate above it, the inner wall of the housing, and the top surface of the stator, form an oil collecting cavity; the oil collecting cavity is located between the opening and the airflow channel, and is connected to the opening and the airflow channel respectively.

4. The scroll compressor according to claim 2, characterized in that, The baffle is annular in shape, with its outer edge positioned close to the inner wall of the housing; a plurality of openings are provided circumferentially along the outer edge of the baffle, and the number of guide plates corresponds to the number of openings.

5. The scroll compressor according to claim 4, characterized in that, The compressor also includes a main balance block disposed in the upper cavity of the motor and rotating together with the rotor of the motor; the baffle plate and the guide plate are both disposed around the outside of the main balance block, and the guiding direction of the guide surface is the same as the rotation direction of the rotor of the motor during operation.

6. The scroll compressor according to claim 1, characterized in that, A scroll compression assembly is provided above the upper cavity of the motor. The scroll compression assembly includes: a stationary scroll plate with a stationary exhaust port; a moving scroll plate that meshes with the stationary scroll plate to form a compression cavity; and an upper bracket that is fixed inside the housing and supports the stationary scroll plate and the moving scroll plate.

7. An air conditioner, characterized in that, Including the scroll compressor as described in any one of claims 1 to 6.

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