Rotor assembly and compressor with same

Abstract

The invention provides a rotor assembly, which comprises a rotor iron core and a baffle assembly, and is characterized in that the rotor iron core is provided with a circulation channel which extends along the radial direction and is used for circulation of a refrigerant medium; the rotor iron core is provided with two opposite ends extending in the axial direction, the baffle assembly is arranged at the end of the iron core, and at least part of the baffle assembly is movably arranged to avoid the circulation channel or shield at least part of the port of the circulation channel so as to adjust the circulation cross-sectional area of the port of the circulation channel. According to the technical scheme, the dynamic cooperative relation between the rotor core and the baffle assembly is constructed, so that at least part of the baffle assembly can selectively shield the end of the circulation channel of the rotor core, and the technical problem that in the prior art, the rotor assembly cannot adjust the flow of the circulation channel, and then the energy efficiency of the air conditioner is affected is solved.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a rotor assembly and a compressor having the same. Background Art

[0002] At present, with the rapid development of the home appliance industry, the compressor, as the heart of the air-conditioning system, its performance directly affects the energy efficiency and service life of the air-conditioning. In the design of compressors, miniaturization and high power have become the mainstream trends, which require more efficient cooling or heating effects in a more compact space. In order to adapt to this trend, the internal structural design of the compressor has been continuously optimized, especially the rotor assembly, on which the flow channels are provided for the circulation of refrigerant and refrigeration oil. In the prior art, the size of the flow channels of the rotor assembly is usually fixed, aiming to ensure the circulation of refrigerant and refrigeration oil to meet the working requirements of the compressor. These flow channels are usually optimized according to the most common or worst working conditions to ensure the performance of the compressor under such conditions. This design simplifies the structure of the compressor to a certain extent, making it easier to mass produce and maintain.

[0003] However, this fixed design cannot adapt to all operating conditions. Especially with the trend toward smaller compressors and higher power requirements, the internal refrigerant volume is increasing. The fixed flow channel design can result in the inability to effectively adjust the amount of refrigerant oil discharged at different speeds. Specifically, the size of the flow channel remains constant when the rotor assembly of the existing compressor is running at low or high speeds, making it unable to adapt to the different operating conditions corresponding to the rotor assembly at different speeds. Summary of the Invention

[0004] The main purpose of the present application is to provide a rotor assembly and a compressor having the same, so as to solve the technical problem in the prior art that the rotor assembly cannot adjust the flow rate of the circulation channel, thereby affecting the energy efficiency of the air conditioner.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a rotor assembly is provided, including a rotor core and a baffle assembly, the rotor core is provided with a circulation channel extending in the radial direction for the circulation of the refrigerant medium; the rotor core has two opposite ends extending in the axial direction, and the baffle assembly is arranged at the end of the core, and at least a part of the baffle assembly is movably arranged to avoid the circulation channel or block at least a part of the port of the circulation channel to adjust the circulation cross-sectional area of ​​the port of the circulation channel.

[0006] Furthermore, the rotor assembly also includes a mounting plate, one side of which is arranged at the end of the rotor core, and a through hole is provided on the plate, which is connected to the circulation channel one by one for the circulation of the refrigerant medium, and the baffle assembly is movably arranged at the corresponding through hole to avoid or block the through hole.

[0007] Furthermore, the rotor assembly also includes a first elastic member, which is telescopically arranged on the circumferential side of the through hole along the radial direction of the rotor core, and at least a portion of the baffle assembly is movably arranged on the side of the through hole close to the rotating shaft hole of the core along the radial direction of the core. The baffle assembly is movably connected to the mounting plate through the first elastic member, and when the rotor core switches from a stationary state to a rotating operation, at least a portion of the baffle assembly is moved along the radial direction of the core to a blocking position that blocks at least a portion of the through hole.

[0008] Furthermore, a mounting groove extending radially along the rotor core is provided on the mounting plate, and a baffle assembly is provided in the groove; wherein, the first elastic member is provided at one end of the mounting groove close to the rotating shaft hole; or, the first elastic member is provided at one end of the mounting groove away from the rotating shaft hole.

[0009] Furthermore, the baffle assembly is provided with an avoidance hole, which is adapted to the shape of the port of the circulation channel, and the portion of the baffle assembly located near the shaft hole of the avoidance hole forms a shielding portion of the baffle assembly, and the shielding portion can be adjusted along the radial length of the rotor core; wherein, the rotor core has a first speed range and a second speed range, and the speed in the first speed range is less than the speed in the second speed range; when the rotor core is in the first speed range, the baffle assembly is in a first shielding state, the radial length of the shielding portion is L1, and the shielding area of ​​the shielding portion to the port of the circulation channel is S1; when the rotor core is in the second speed range, the baffle assembly is in a second shielding state, the radial length of the shielding portion is L2, and the shielding area of ​​the shielding portion to the port of the circulation channel is S2; wherein, L1<L2, S1<S2.

[0010] Furthermore, the baffle assembly moves toward one end of the mounting slot away from the shaft hole, so that the baffle assembly moves from a avoiding state of avoiding the through hole to a first blocking state or a second blocking state for blocking the through hole; wherein, when the baffle assembly moves from the avoiding state to the first blocking state, a part of the baffle assembly moves to the through hole to block at least a portion of the port of the circulation channel; when the baffle assembly moves to the second blocking state, the baffle assembly moves to the through hole to block at least a portion of the port of the circulation channel, thereby making the flow cross-sectional area of ​​the port of the circulation channel when the baffle assembly is in the first blocking state greater than the flow cross-sectional area of ​​the port of the circulation channel when the baffle assembly is in the second blocking state.

[0011] Furthermore, the baffle assembly includes a first baffle and a second baffle, at least a portion of the first baffle is arranged on a side of the through hole close to the rotating shaft hole, an avoidance hole is provided on the first baffle, and the second baffle is arranged at an end of the first baffle close to the rotating shaft hole; when the baffle assembly is in a first blocking state, the first baffle is movably arranged relative to the second baffle to block at least a portion of the port of the circulation channel through at least a portion of the first baffle; when the baffle assembly is in a second blocking state, the first baffle and the second baffle are both movably arranged relative to the rotor core to block at least a portion of the port of the circulation channel through at least a portion of the first baffle and the second baffle.

[0012] Furthermore, the second baffle is connected to the first baffle in a radial sliding manner along the rotor core. When the baffle assembly moves from the first blocking state to the second blocking state, the first baffle and the second baffle slide relative to each other so that at least part of the first baffle and at least part of the second baffle are blocked at the through hole.

[0013] Furthermore, the rotor assembly also includes a second elastic member, which is telescopically arranged along the radial direction of the rotor core, one end of the second elastic member is connected to the side of the mounting groove close to the rotating shaft hole, and the other end of the second elastic member is connected to the side of the second baffle close to the rotating shaft hole. When the baffle assembly moves from the first blocking state to the second blocking state, a reset elastic force is provided for the second baffle, thereby causing the first baffle and the second baffle to slide relative to each other.

[0014] Furthermore, the first elastic member is a compression spring; and / or the second elastic member is an elastic rope or a tension spring.

[0015] Furthermore, the mounting plate includes a top plate and a bottom plate, the bottom plate is connected to the end of the rotor core, and a baffle assembly is arranged between the top plate and the bottom plate; and / or, a first limiting structure extending radially along the rotor core is arranged in the mounting groove, and a second limiting structure is arranged on the first baffle corresponding to the first limiting structure, and the first limiting structure and the second limiting structure are slidably matched to limit the movement of the first baffle; and / or, a third limiting structure extending radially along the rotor core is arranged on the second baffle, and a fourth limiting structure is arranged on the first baffle, and the third limiting structure and the fourth limiting structure are slidably matched to make the second baffle slidably connected to the first baffle.

[0016] Furthermore, the rotor assembly includes multiple baffle assemblies and multiple circulation channels, and the multiple baffle assemblies and the multiple circulation channels are arranged in a one-to-one correspondence. Each baffle assembly is arranged at the port of the corresponding circulation channel, and each baffle assembly is movably arranged relative to the rotor core to avoid the circulation channel or block at least part of the port of the circulation channel.

[0017] According to another aspect of the present application, a compressor is provided, comprising the above-mentioned rotor assembly.

[0018] Applying the technical solution of the present application, the rotor core serves as the core of the entire rotor assembly, and a radially extending circulation channel is designed on it, which is the key path for the refrigerant medium to flow through. The baffle assembly is tightly matched with the end of the rotor core to form a structure with a variable flow cross-section. The uniqueness of the baffle assembly is that it contains at least partially movable components, which means that the baffle assembly can move according to changes in external conditions to block or avoid the port of the circulation channel. By constructing a dynamic cooperative relationship between the rotor core and the baffle assembly, at least part of the baffle assembly can be selectively blocked at the end of the circulation channel of the rotor core, solving the technical problem in the prior art that the rotor assembly cannot adjust the flow of the circulation channel, thereby affecting the energy efficiency of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0020] Figure 1 A perspective schematic diagram of an embodiment of a rotor assembly according to the present application is shown;

[0021] Figure 2 A schematic plan view of the bottom plate of a mounting plate according to an embodiment of a rotor assembly of the present application is shown;

[0022] Figure 3 A schematic plan view of a baffle assembly in an avoidance state according to an embodiment of a rotor assembly of the present application is shown;

[0023] Figure 4 A schematic plan view of a baffle assembly in a first shielding state according to an embodiment of a rotor assembly of the present application is shown;

[0024] Figure 5 A schematic plan view of a baffle assembly in a second shielding state according to an embodiment of a rotor assembly of the present application is shown;

[0025] Figure 6 A schematic structural diagram of a first baffle and a first elastic member according to an embodiment of a rotor assembly of the present application is shown;

[0026] Figure 7 A schematic structural diagram of a second baffle and a second elastic member according to an embodiment of a rotor assembly of the present application is shown.

[0027] The above drawings include the following reference numerals:

[0028] 100, rotor core; 101, rotating shaft hole; 110, flow passage; 200, baffle assembly; 201, avoiding hole; 210, first baffle; 211, second limiting structure; 212, fourth limiting structure; 220, second baffle; 221, third limiting structure; 300, mounting plate; 301, through hole; 302, first limiting structure; 303, mounting groove; 310, top plate; 320, bottom plate; 400, first elastic member; 500, second elastic member. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] As shown in Figure 1 The embodiments of the present application provide a rotor assembly, which comprises a rotor core 100 and a baffle assembly 200. The rotor core 100 is provided with a flow passage 110 extending along the radial direction thereof for the flow of refrigerant medium. The baffle assembly 200 is arranged at the end of the rotor core 100 and is movably arranged at least in part to avoid or shield the flow passage 110, so as to adjust the port flow cross-sectional area of the flow passage 110.

[0031] By constructing the dynamic cooperative relationship between the rotor core 100 and the baffle assembly 200, the rotor assembly provided by the embodiments of the present application makes at least part of the baffle assembly 200 selectively shield the end of the flow passage 110 of the rotor core 100, which solves the technical problem that the flow of the flow passage cannot be adjusted in the prior art, and further affects the energy efficiency of the air conditioner.

[0032] In the above embodiment, the rotor core 100 is designed with a radially extending flow channel 110, which is the necessary path for refrigerant media, such as refrigerant and refrigeration oil, to circulate within the compressor. The provision of the flow channel 110 is intended to ensure that the refrigerant can effectively circulate within the compressor, achieving the cooling or heating process. The baffle assembly 200 is cleverly assembled at one of the two axial ends of the rotor core 100. Its key function is to dynamically adjust the flow cross-sectional area of ​​the flow channel 110 port according to the operating state of the rotor assembly. This dynamic adjustment mechanism is achieved by the movable design of at least part of the components of the baffle assembly 200. Specifically, when the rotor core 100 is driven by the motor to rotate, the movable portion of the baffle assembly 200 can selectively block or avoid the port of the flow channel 110 according to the speed, thereby achieving control of the refrigerant flow rate. The movable portion of the baffle assembly 200 forms an adjustable interface with the flow channel 110 of the rotor core 100. When the compressor is operating at low speed, the movable portion of the baffle assembly 200 remains out of the way of the circulation channel 110, ensuring a larger circulation cross-sectional area and meeting the requirements for smooth circulation of the refrigerant medium. However, when the speed increases and the centrifugal force increases, the movable portion of the baffle assembly 200, driven by the centrifugal force, moves toward the end of the circulation channel 110, partially blocking the circulation opening and reducing the circulation cross-sectional area, thereby effectively controlling the discharge of refrigerant oil and avoiding negative impacts on the energy efficiency of the air conditioning system.

[0033] In the above embodiment, the baffle assembly 200 is assembled at the end of the rotor counterweight. In other embodiments, the baffle assembly 200 may be provided at both ends of the rotor core 100 .

[0034] In some embodiments, a groove extending in a preset direction can be provided at the end of the rotor core 100, a protrusion slidingly engaged with the groove can be provided on the baffle assembly 200, and a driving member can be provided at one end of the baffle assembly 200. The driving member is configured to push the baffle assembly 200 to different positions based on different rotational speeds of the rotor core 100, so as to adjust the flow area of ​​the flow channel 110.

[0035] Specifically, if Figure 2As shown, the rotor assembly also includes a mounting plate 300, one side of which is arranged at the end of the rotor core 100, and a through hole 301 is provided on the mounting plate 300, which is connected to the circulation channel 110 in a one-to-one correspondence for the circulation of the refrigerant medium. The baffle assembly 200 is movably arranged at the corresponding through hole 301 to avoid or block the through hole 301. The setting of the mounting plate 300 provides stable support and guidance for the baffle assembly 200, ensuring its accurate movement at different speeds. A complete fluid channel is formed by the through hole 301 on the mounting plate 300 corresponding to the circulation channel 110 of the rotor core 100, and the movement of the baffle assembly 200 directly controls the degree of opening of the channel. The technical solution in this embodiment can ensure that the refrigerant medium can circulate smoothly at different speeds while effectively controlling its flow rate, thereby preventing excessive refrigeration oil from entering the air-conditioning system and affecting energy efficiency.

[0036] In the above embodiment, the rotor core 100 is provided with a plurality of axially arranged mounting channels, the mounting plate 300 is provided with mounting holes, and the rotor assembly further includes a plurality of rotor rivets, which are passed through the mounting holes and the mounting channels to fasten the mounting plate 300 and the rotor core 100 together.

[0037] In the above embodiment, the outer edge diameter of the mounting plate 300 is smaller than or equal to the diameter of the end face of the rotor core 100, preventing the mounting plate 300 from being too large and interfering with the stator during operation. A circular hole is provided in the center of the mounting plate 300 for receiving the rotating shaft. The diameter of the circular hole is greater than or equal to the diameter of the rotating shaft hole 101 of the rotor core 100, preventing interference with the rotation of the rotating shaft during operation.

[0038] In some embodiments, the thickness, material or shape of the through hole of the mounting plate 300 can be adjusted to meet the structural requirements of different compressors and solve the problem of fixing and guiding the baffle assembly 200 under specific working conditions.

[0039] Specifically, the rotor assembly also includes a first elastic member 400, which is retractably disposed radially around the through hole 301 of the rotor core 100. At least a portion of the baffle assembly 200 is movably disposed radially along the rotor core 100 on a side of the through hole 301 near the shaft hole 101. The baffle assembly 200 is movably connected to the mounting plate 300 via the first elastic member 400, so that when the rotor core 100 switches from a stationary state to a rotating operation, at least a portion of the baffle assembly 200 moves radially along the rotor core 100 to a blocking position that blocks at least a portion of the through hole 301. The provision of the first elastic member 400 ensures that the baffle assembly 200 can move radially to a blocking position when the rotor core 100 switches from a stationary state to a rotating operation. Automatic adjustment of the baffle assembly 200 is achieved by utilizing the interaction between the elastic force of the elastic member and the centrifugal force. The technical solution in this embodiment can ensure that the baffle assembly 200 is in an avoidance state when running at a low speed, and automatically moves to a blocking position when running at a high speed, thereby effectively controlling the flow of the refrigerant medium.

[0040] In the above embodiment, the shaft hole 101 is a through-hole in the rotor core 100 that accommodates and secures the shaft. It is located at the center of the rotor core 100. The shaft is a key component of the motor within the compressor, connecting the motor's stator and rotor assemblies and serving as the primary carrier of the motor's rotational power. When the motor is running, the shaft rotates under the influence of the magnetic field generated by the stator, driving the connected rotor assembly to rotate together.

[0041] In this embodiment, the first elastic member 400 is arranged on the side of the through hole 301 away from the rotating shaft hole 101. When the rotor core 100 switches from a stationary state to a rotating operation, the baffle assembly 200 moves radially outward to a blocking position, and the first elastic member 400 is compressed. When the rotor core 100 switches from a rotating operation to a stationary state, the first elastic member 400 pushes the baffle assembly 200 back to its initial position.

[0042] In some embodiments, the first elastic member 400 is arranged on one side of the through hole 301 close to the shaft hole 101. When the rotor core 100 switches from a stationary state to a rotating operation, the baffle assembly 200 moves radially outward to a blocking position, and the first elastic member 400 is stretched. When the rotor core 100 switches from a rotating operation to a stationary state, the first elastic member 400 pulls the baffle assembly 200 back to its initial position.

[0043] In some embodiments, the type of the first elastic member 400 (such as the spring constant, the elastic constant of the elastic rope) can be changed to adapt to the flow control requirements under different speed ranges and solve the problem of precise control of the moving distance of the baffle assembly 200 under specific working conditions.

[0044] Specifically, the mounting plate 300 is provided with a mounting slot 303 extending radially along the rotor core 100. The baffle assembly 200 is positioned within the mounting slot 303. The first elastic member 400 is positioned at either the end of the mounting slot 303 closest to the shaft hole 101 or the end further away from the shaft hole 101. The placement of the mounting slot 303 provides a path for the baffle assembly 200 to move, ensuring smooth and precise movement. The first elastic member 400, through its elastic force interacting with the centrifugal force of the baffle assembly 200, enables automatic adjustment of the baffle assembly 200.

[0045] In this embodiment, the mounting groove 303 is arranged inside the mounting plate 300; in some embodiments, the mounting groove 303 can also be arranged on the end surface of the mounting plate 300 close to the rotor core 100 or on the end surface of the mounting plate 300 away from the rotor core 100.

[0046] Specifically, if Figures 3 to 5 As shown, the baffle assembly 200 is provided with an avoidance hole 201, which is adapted to the port shape of the flow channel 110. The portion of the baffle assembly 200 located near the avoidance hole 201 and the shaft hole 101 forms a shielding portion, and its length along the radial direction of the rotor core 100 is adjustable. The baffle assembly 200 is provided with an avoidance hole 201, which is adapted to the shape of the port of the circulation channel 110. The portion of the baffle assembly 200 located near the shaft hole 101 of the avoidance hole 201 forms a shielding portion of the baffle assembly 200, and the shielding portion is adjustably set along the radial length of the rotor core 100; the rotor core 100 has a first speed range and a second speed range, and the speed in the first speed range is less than the speed in the second speed range; when the rotor core 100 is in the first speed range, the baffle assembly 200 is in a first shielding state, the radial length of the shielding portion is L1, and the shielding area of ​​the shielding portion to the port of the circulation channel 110 is S1; when the rotor core 100 is in the second speed range, the baffle assembly 200 is in a second shielding state, the radial length of the shielding portion is L2, and the shielding area of ​​the shielding portion to the port of the circulation channel 110 is S1; wherein, L1<L2, S1<S2.

[0047] In the above embodiment, the baffle assembly 200 is provided with a relief hole 201, the shape of which specifically matches the end of the flow channel 110, ensuring that the refrigerant medium and refrigeration oil can pass freely when unobstructed. A specific area of ​​the baffle assembly 200, located near the relief hole 201 and adjacent to the shaft hole 101, constitutes a shielding portion. The length of this portion along the radial direction of the rotor core 100 can be dynamically adjusted to meet the requirements of different operating conditions.

[0048] During operation, the rotor core 100 operates within two distinct speed ranges: a first speed range and a second speed range, wherein the speed within the first speed range is lower than the speed within the second speed range. Within the first speed range, the baffle assembly 200 remains in the first shielding state, where the radial length of the shielding portion is set to L1, and the area of ​​the port of the flow channel 110 blocked is S1. When the rotor core 100 accelerates to the second speed range, the baffle assembly 200 automatically switches to the second shielding state, where the radial length of the shielding portion increases to L2, and the shielding area also expands to S2, satisfying the conditions of L1 being less than L2 and S1 being less than S2.

[0049] This coordinated mechanism among these components automatically adjusts the blocked area of ​​the flow channel 110 port by adjusting the radial length of the shielding portion of the baffle assembly 200 based on the speed of the rotor core 100. During low-speed operation, the baffle assembly 200 provides virtually no shielding, ensuring sufficient medium flow. During high-speed operation, the baffle assembly 200 effectively suppresses excessive refrigerant oil discharge by increasing the shielding area, preventing the adverse effects of excessive compressor oil discharge on the air conditioning system's energy efficiency.

[0050] In the above embodiment, the moving distance of the baffle assembly 200 can be determined according to the mass of the baffle assembly 200, the rotor speed and the elastic coefficient of the first elastic member 400. The centrifugal force of the baffle assembly 200 can be determined according to F=m*ω 2 *γ (m is the mass of the baffle assembly 200, r is the radius of rotation, and w is the angular velocity) and ω = 2πn / 60 (w is the angular velocity, n is the rotational speed). A suitable spring can also be selected based on Hooke's law: F = k*x (F is the force applied to the spring, k is the spring constant, also known as the spring constant, and x is the spring deformation). Using this formula, parameters can be adjusted according to operating conditions to design the rotor's flow area at the corresponding speed.

[0051] Specifically, the baffle assembly 200 moves toward one end of the mounting slot 303 away from the rotating shaft hole 101, so that the baffle assembly 200 moves from the avoidance state of avoiding the through hole 301 to the first blocking state or the second blocking state for blocking the through hole 301; wherein, when the baffle assembly 200 moves from the avoidance state to the first blocking state, a part of the baffle assembly 200 moves to the through hole 301 to block at least a portion of the port of the circulation channel 110; when the baffle assembly 200 moves to the second blocking state, the baffle assembly 200 moves to the through hole 301 to block at least a portion of the port of the circulation channel 110, so that the flow cross-sectional area of ​​the port of the circulation channel 110 when the baffle assembly 200 is in the first blocking state is greater than the flow cross-sectional area of ​​the port of the circulation channel 110 when the baffle assembly 200 is in the second blocking state.

[0052] In the above embodiment, the movement of the baffle assembly 200 is used to achieve automatic adjustment of the flow cross-sectional area of ​​the port of the circulation channel 110. When the rotor assembly is running at a low speed, the baffle assembly 200 is in an avoidance state, that is, it avoids the installation slot 303 and does not block the port of the circulation channel 110. This state ensures that the refrigerant medium can flow fully and unimpeded at low speeds, meeting the cooling needs of the system under low-load conditions. However, as the rotation speed of the rotor assembly increases, the baffle assembly 200 begins to move toward the installation slot 303 away from the shaft hole 101 under the action of centrifugal force. During this process, the baffle assembly 200 gradually blocks the port of the circulation channel 110 and enters the first blocking state. At this time, the flow cross-sectional area begins to shrink, which helps to control the discharge of the refrigerant medium, especially the refrigeration oil, and reduce the impact on the performance of the air-conditioning system. If the speed continues to increase, baffle assembly 200 moves further to the second blocking state, further reducing the cross-sectional area of ​​the port of flow channel 110. This ensures that the oil discharge of the rotor assembly remains within a reasonable range under high-speed conditions, preventing excessive discharge of refrigerant oil that would lead to reduced heat exchange efficiency and increased energy consumption. The key to this design is that it utilizes the natural changes in the rotor assembly's speed as a control signal. Without the intervention of external sensors or control systems, baffle assembly 200 can automatically respond and adjust the cross-sectional area of ​​the flow.

[0053] Specifically, if Figure 6 、 Figure 7 As shown, the baffle assembly 200 includes a first baffle 210 and a second baffle 220, at least a portion of the first baffle 210 is arranged on a side of the through hole 301 close to the shaft hole 101, the first baffle 210 is provided with an avoidance hole 201, and the second baffle 220 is arranged at one end of the first baffle 210 close to the shaft hole 101; when the baffle assembly 200 is in a first blocking state, the first baffle 210 is movably arranged relative to the second baffle 220 to block at least a portion of the port of the circulation channel 110 through at least a portion of the first baffle 210; when the baffle assembly 200 is in a second blocking state, the first baffle 210 and the second baffle 220 are both movably arranged relative to the rotor core 100 to block at least a portion of the port of the circulation channel 110 through at least a portion of the first baffle 210 and the second baffle 220.

[0054] The baffle assembly 200 is composed of a first baffle 210 and a second baffle 220. A portion of the first baffle 210 is positioned on the side of the through-hole 301 near the shaft hole 101, and a relief hole 201 is provided therein to ensure unobstructed flow passage 110 under certain conditions. The second baffle 220 is mounted on the end of the first baffle 210 closer to the shaft hole 101. This arrangement allows the second baffle 220 to work in conjunction with the first baffle 210 under certain conditions to adjust the area blocked from the end of the flow passage 110.

[0055] In the first blocking state, the first baffle 210 and the second baffle 220 maintain an independent movable relationship, which means that the first baffle 210 can move independently and block part of the port of the flow passage 110, while the second baffle 220 remains stationary in this state, and only the first baffle 210 completes the preliminary control of the medium flow.

[0056] When transitioning to the second blocking state, as the rotational speed of the rotor core 100 increases, both the first baffle 210 and the second baffle 220 obtain the freedom to move relative to the rotor core 100. At this time, the first baffle 210 not only continues to play a blocking role, but the second baffle 220 also begins to participate in the blocking. Under the joint action of the two, the blocking area of the port of the flow passage 110 increases significantly, more effectively controlling the oil discharge rate of the compressor at high speed, and ensuring the efficient operation of the air conditioning system and energy saving.

[0057] Specifically, the second baffle 220 is radially slidably connected with the first baffle 210 along the rotor core 100. When the baffle assembly 200 moves from the first blocking state to the second blocking state, the first baffle 210 and the second baffle 220 slide relative to each other so that at least part of the first baffle 210 and at least part of the second baffle 220 are blocked at the through hole 301. The coordinated interaction between the second baffle 220 and the first baffle 210 is achieved through the radial sliding connection along the rotor core 100. This connection mode lays the foundation for the flexibility of the function of the baffle assembly 200. When the baffle assembly 200 gradually moves from the first blocking state to the more stringent second blocking state, this process is based on the dynamic response of the rotor core 100 and the relative sliding mechanism inside the baffle assembly. In the first blocking state, the first baffle 210 has begun to block part of the exposed through hole 301 to adjust the port flow area of the flow passage 110. However, in order to adapt to the more stringent requirements for refrigeration oil discharge at higher rotational speeds, the second baffle 220 is designed to be able to slide radially relative to the first baffle 210. As the rotational speed further increases, the first baffle 210 in the baffle assembly 200 will continue its blocking action, while pulling the second baffle 220 to slide radially outward along the rotor core 100 until at least part of the two are jointly blocked at the through hole 301, forming the second blocking state.

[0058] Specifically, the rotor assembly further includes a second elastic member 500, which is telescopically disposed along the radial direction of the rotor core. One end of the second elastic member 500 is connected to the side of the mounting slot 303 near the rotating shaft hole 101, and the other end is connected to the side of the second baffle 220 near the rotating shaft hole 101. This provides an elastic force to restore the second baffle 220 when the baffle assembly 200 moves from the first blocking state to the second blocking state, thereby allowing the first baffle 210 and the second baffle 220 to slide relative to each other. The second elastic member 500 is telescopically disposed along the radial direction of the rotor core 100, with one end firmly connected to the side of the mounting slot 303 near the rotating shaft hole 101 and the other end connected to the side of the second baffle 220 near the rotating shaft hole 101. In this design, the second elastic member 500 not only provides the elastic force required for the second baffle 220 to reset, but also ensures that during the smooth transition of the baffle assembly 200 from the first blocking state to the second blocking state, the first baffle 210 and the second baffle 220 can slide relative to each other in an orderly manner, so as to achieve more precise and detailed flow control.

[0059] When the rotor assembly speed rises to a level requiring activation of the second shielding state, the second baffle 220 begins to move radially along the rotor core 100, driven by centrifugal force. During this process, the second elastic member 500 in the mounting slot 303 is gradually stretched, storing energy, until the second baffle 220 slides completely into place, shielding the through-hole 301. At this point, the movement of the second baffle 220 not only enhances the shielding effect of the first baffle 210 and further reduces the flow cross-sectional area, but also, due to the presence of the second elastic member 500, ensures that the second baffle 220 can maintain a stable position even at the highest speed, effectively controlling the amount of refrigeration oil discharged and preventing a decrease in energy efficiency.

[0060] On the contrary, when the speed of the rotor assembly decreases or stops, the second elastic member 500 begins to release the previously stored energy, pushing the second baffle 220 to retract to the initial position. During this process, the relative sliding mechanism between the first baffle 210 and the second baffle 220 ensures that the flow cross-sectional area of ​​the through hole 301 is gradually restored to the maximum, so that in the low speed or shutdown state, the refrigerant medium can pass through the flow channel 110 without obstruction, maintaining the normal operation and rapid response capability of the system.

[0061] Specifically, the first elastic member 400 is a compression spring; the second elastic member 500 is an elastic rope or a tension spring. The first elastic member 400 is a compression spring, and its main function is to provide elastic restoring force for the movement of the first baffle 210, ensuring that when the compressor is running at a low speed or shut down, the first baffle 210 can return to the avoidance state, that is, away from the shaft hole 101, and does not block the circulation channel 110. When the speed increases, the centrifugal force causes the first baffle 210 to move toward the side of the mounting groove 303 away from the shaft hole 101, and the compression spring is compressed accordingly, storing energy. Once the speed slows down, the first baffle 210 returns to its original position under the elastic force of the compression spring, ensuring the smooth flow of the refrigerant medium. On the other hand, the second elastic member 500 is in the form of an elastic rope or a tension spring. Its function is to support the return movement of the second baffle 220, particularly when transitioning from the first blocking state to the more stringent second blocking state. One end of the second elastic member 500 is connected to the side of the mounting slot 303 near the rotating shaft hole 101, while the other end is fixed to the side of the second baffle 220 near the rotating shaft hole 101. When the second baffle 220 slides outward under the force of centrifugal force, the second elastic member 500, whether in the form of an elastic cord or a tension spring, is stretched. Similarly, when the rotation speed decreases and the second baffle 220 loses the external force, the return force of the second elastic member 500 causes the second baffle 220 to move inward, reducing the degree of obstruction to the flow channel 110.

[0062] Specifically, the mounting plate 300 includes a top plate 310 and a bottom plate 320. The bottom plate 320 is connected to the end of the rotor core 100, and the baffle assembly 200 is disposed between the top plate 310 and the bottom plate 320. A first limiting structure 302 extending radially along the rotor core is disposed within the mounting slot 303. A second limiting structure 211 is disposed on the first baffle 210 corresponding to the first limiting structure 302. The first limiting structure 302 and the second limiting structure 211 slidably cooperate to limit the movement of the first baffle 210. A third limiting structure 221 extending radially along the rotor core is disposed on the second baffle 220. A fourth limiting structure 212 is disposed on the first baffle 210. The third limiting structure 221 and the fourth limiting structure 212 slidably cooperate to ensure that the second baffle 220 is slidably connected to the first baffle 210.

[0063] The first limiting structure 302 is a limiting protrusion extending radially along the rotor core 100. The second limiting structure 211 is a limiting groove configured to cooperate with the first limiting structure 302. The two slidingly cooperate to allow the first baffle 210 to slide smoothly in the radial direction of the rotor core 100 within the mounting groove 303. The third limiting structure 221 is an elongated opening extending radially along the rotor core 100. The fourth limiting structure 212 is a protrusion provided on the first baffle 210. The protrusion extends into the elongated opening and slides along the extension direction of the opening. When the rotor core 100 switches from a stationary state to a moving state, the second baffle 220 and the first baffle 210 slide together, and the first baffle 210 slides along the extension direction of the first limiting structure 302 to the end of the flow channel 110 to block it. When the rotor core 100 reaches a certain speed, the second baffle 220 remains stationary, and the protrusion slides to the end of the elongated opening. The two engage in a positional fit, and the first baffle 210 remains stationary relative to the second baffle 220. When the rotor core 100 further accelerates, the first baffle 210 slides further along the extension direction of the first limiting structure 302. The first baffle 210 and the second baffle 220 move simultaneously, so that at least a portion of the first baffle 210 and at least a portion of the second baffle 220 simultaneously block the end of the flow channel 110.

[0064] The first baffle 210 and the second baffle 220, as components of the baffle assembly 200, achieve a smooth transition from a first blocking state to a second blocking state by relative sliding along the radial direction of the rotor core 100. The coordinated movement of the avoidance hole 201 on the first baffle 210 and the second baffle 220, combined with the elastic adjustment function of the first elastic member 400 and the second elastic member 500, ensures that the baffle assembly 200 accurately blocks or avoids at different speeds. At the same time, the provision of the first limiting structure 302, the second limiting structure 211, the third limiting structure 221, and the fourth limiting structure 212 prevents excessive displacement or jamming of the baffle assembly 200 during high-speed operation, thereby ensuring the stability and reliability of the system operation.

[0065] Specifically, the rotor assembly includes a plurality of baffle assemblies 200 and a plurality of circulation channels 110. The plurality of baffle assemblies 200 and the plurality of circulation channels 110 are arranged in a one-to-one correspondence, and each baffle assembly 200 is arranged at the port of the corresponding circulation channel 110. Each baffle assembly 200 is movably arranged relative to the rotor core 100 to avoid the corresponding circulation channel 110 or to block at least part of the port of the corresponding circulation channel 110.

[0066] The rotor assembly includes multiple baffle assemblies 200, and multiple flow channels 110 are evenly distributed on the annular surface of the rotor core 100. Each channel is responsible for a specific proportion of the refrigerant medium flow. The corresponding baffle assemblies 200 automatically adjust their position relative to the flow channels 110 according to the increase or decrease of centrifugal force to change the flow cross-sectional area. At low speeds, the baffle assemblies 200 tend to be in an evasive state, allowing the medium to flow freely through the flow channels 110. When the speed increases to a certain threshold, the individual baffle assemblies 200 begin to block the flow channels 110 under the action of centrifugal force, achieving precise control of the medium flow.

[0067] Another aspect of the present application provides a compressor including the aforementioned rotor assembly. The present application also relates to an integrated compressor design, the core feature of which is the use of the above-described carefully designed rotor assembly, which achieves dynamic regulation and optimization of refrigeration oil discharge through ingenious component coordination. Within the compressor, the rotor assembly, as a key component, demonstrates excellent performance and efficiency through interaction with the motor stator, compressor housing, and other system components.

[0068] The rotor core 100, as the cornerstone of the rotor assembly, not only carries the motor's rotational power but also integrates multiple circulation channels 110 for the circulation of the refrigerant medium. Working in conjunction with the rotor core 100 are multiple baffle assemblies 200, each of which is configured to correspond to a circulation channel 110, together forming a flow control network within the compressor. During low-speed operation, the baffle assemblies 200 remain in a retractable state, ensuring that the medium can pass through the circulation channel 110 unobstructed. When the speed increases, centrifugal force causes the first baffle 210 and the second baffle 220 to move, successively entering a blocked state, reducing the cross-sectional area of ​​the circulation, thereby effectively controlling the discharge of the refrigerant oil and avoiding the impact of excessive oil on the energy efficiency of the air conditioning system.

[0069] The mounting plate 300, comprising a top plate 310 and a bottom plate 320, provides a fixed and guiding platform for the baffle assembly 200, ensuring its accurate movement along the intended path without deviation or jamming. The space between the top plate 310 and the bottom plate 320 provides the necessary space for the relative sliding of the first baffle 210 and the second baffle 220. Furthermore, the connection between the bottom plate 320 and the rotor core 100 ensures the structural stability and positioning accuracy of the entire assembly.

[0070] The addition of the first elastic member 400 and the second elastic member 500 further enhances the dynamic performance of the baffle assembly 200. The first elastic member 400, specifically a compression spring, is located between the first baffle 210 and the base plate 320, providing the elastic force to return the first baffle 210 to its original position. The second elastic member 500, which can be an elastic cord or tension spring, connects the second baffle 220 to the base plate 320, ensuring that the second baffle 220 smoothly returns to its avoidance position after completing its blocking function. This coordinated mechanism between the elastic member and the baffle automatically adjusts the flow cross-sectional area at different speeds without the need for external control, simplifying system design and improving operational efficiency.

[0071] In summary, this compressor design, through the precise coordination between the rotor core 100, multiple flow channels 110, baffle assembly 200, mounting plate 300, and first and second elastic members 400 and 500, achieves an intelligent rotor assembly that automatically adjusts the oil discharge rate based on the rotational speed. This innovation not only optimizes the energy efficiency of the air conditioning system but also enhances overall operational stability and reliability through innovations in the compressor's internal structure, bringing significant progress to the field of compressor technology.

[0072] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0073] The baffle assembly 200 can automatically respond to the speed change of the rotor core 100. By avoiding or blocking the first baffle 210 and the second baffle 220, it can realize dynamic adjustment of the flow cross-sectional area of ​​the port of the flow channel 110, effectively control the discharge of the refrigerant oil, and avoid the negative impact of excess oil on the energy efficiency of the air-conditioning system.

[0074] The use of a mounting plate 300 (including a top plate 310 and a bottom plate 320) and a limiting structure (such as the sliding fit between the first limiting structure 302 and the second limiting structure 211, and the third limiting structure 221 and the fourth limiting structure 212) provides the baffle assembly 200 with stable support and precise motion trajectory, ensuring the stability and structural compactness of the assembly during high-speed operation, and reducing mechanical wear and failure rate.

[0075] The use of the first elastic member 400 (such as a compression spring) and the second elastic member 500 (such as an elastic rope or a tension spring) not only ensures the automatic reset ability of the baffle assembly 200 at different speeds, but also provides additional shielding adjustment, especially under high-speed conditions. Through the linkage of the second baffle 220, more precise refrigeration oil flow control is achieved, thereby enhancing the operating efficiency and reliability of the compressor.

[0076] The multiple baffle assemblies 200 integrated in the rotor assembly correspond one-to-one to the multiple circulation channels 110, making the refrigerant medium flow control inside the entire compressor more refined. At different speeds, the coordinated shielding or avoidance function of each baffle assembly 200 ensures the high efficiency and stable operation of the entire system.

[0077] Through the organic combination of the above mechanisms, the compressor can automatically adjust the discharge of refrigerant oil under different operating conditions, avoiding the negative impact of excessive discharge on system energy efficiency and the environment. This not only improves the overall performance of the air-conditioning system, but also reflects the commitment to green energy conservation and environmental protection.

[0078] In summary, the claimed scheme of this application has brought significant progress to the field of compressor technology through its innovative structural design and intelligent control mechanism. It not only optimizes the internal fluid control, but also improves the overall energy efficiency, operational stability and environmental performance of the system, achieving a perfect integration of technology and application, and providing a more efficient and reliable solution for modern air-conditioning systems.

[0079] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0080] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. Technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0081] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0082] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0083] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0084] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A rotor assembly, characterized in that: include: A rotor core (100), wherein the rotor core (100) is provided with a circulation channel (110) extending radially along the rotor core (100) for circulation of a refrigerant medium; A baffle assembly (200), wherein the rotor core (100) has two opposite ends extending in an axial direction, the baffle assembly (200) is arranged at the ends of the rotor core (100), and at least a portion of the baffle assembly (200) is movably arranged to avoid the circulation channel (110) or to cover at least a portion of the port of the circulation channel (110) so as to adjust the circulation cross-sectional area of ​​the port of the circulation channel (110).

2. The rotor assembly according to claim 1, wherein: The rotor assembly further comprises a mounting plate (300), one side of which is arranged at the end of the rotor core (100), and a through hole (301) is provided on the mounting plate (300), and the through hole (301) is connected to the circulation channel (110) in a one-to-one correspondence for circulation of a refrigerant medium, and the baffle assembly (200) is movably arranged at the corresponding through hole (301) to avoid or block the through hole (301).

3. The rotor assembly according to claim 2, wherein: The rotor assembly further comprises a first elastic member (400), the first elastic member (400) being telescopically arranged on the circumferential side of the through hole (301) along the radial direction of the rotor core (100), at least a portion of the baffle assembly (200) being movably arranged on a side of the through hole (301) close to the rotating shaft hole (101) of the rotor core (100) along the radial direction of the rotor core (100), the baffle assembly (200) being movably connected to the mounting plate (300) via the first elastic member (400), so that when the rotor core (100) switches from a stationary state to a rotating operation, at least a portion of the baffle assembly (200) is moved along the radial direction of the rotor core (100) to a blocking position that blocks at least a portion of the through hole (301).

4. The rotor assembly according to claim 3, wherein: The mounting plate (300) is provided with a mounting groove (303) extending radially along the rotor core (100), and the baffle assembly (200) is arranged in the mounting groove (303); Wherein, the first elastic member (400) is arranged at one end of the mounting groove (303) close to the rotating shaft hole (101); or, The first elastic member (400) is arranged at an end of the mounting groove (303) away from the rotating shaft hole (101).

5. The rotor assembly according to claim 3, wherein: The baffle assembly (200) is provided with a relief hole (201), the relief hole (201) being adapted to the shape of the port of the circulation channel (110), and a portion of the baffle assembly (200) located near the relief hole (201) and close to the rotating shaft hole (101) forms a shielding portion of the baffle assembly (200), and the shielding portion is adjustable in length along the radial direction of the rotor core (100); The rotor core (100) has a first speed range and a second speed range, and the speed in the first speed range is smaller than the speed in the second speed range; when the rotor core (100) is in the first speed range, the baffle assembly (200) is in a first shielding state, the radial length of the shielding portion is L1, and the shielding area of ​​the shielding portion to the port of the circulation channel (110) is S1; when the rotor core (100) is in the second speed range, the baffle assembly (200) is in a second shielding state, the radial length of the shielding portion is L2, and the shielding area of ​​the shielding portion to the port of the circulation channel (110) is S1; Among them, L1<L2, S1<S2.

6. The rotor assembly according to claim 4, wherein: The baffle assembly (200) moves toward one end of the mounting slot (303) away from the rotating shaft hole (101), so that the baffle assembly (200) moves from a avoiding state of avoiding the through hole (301) to a first blocking state or a second blocking state of blocking the through hole (301); Wherein, when the baffle assembly (200) moves from the avoidance state to the first blocking state, a portion of the baffle assembly (200) moves to the through hole (301) to block at least a portion of the port of the circulation channel (110); when the baffle assembly (200) moves to the second blocking state, the baffle assembly (200) moves to the through hole (301) to block at least a portion of the port of the circulation channel (110), so that the flow cross-sectional area of ​​the port of the circulation channel (110) when the baffle assembly (200) is in the first blocking state is greater than the flow cross-sectional area of ​​the port of the circulation channel (110) when the baffle assembly (200) is in the second blocking state.

7. The rotor assembly according to claim 6, wherein: The baffle assembly (200) comprises a first baffle (210) and a second baffle (220), wherein at least a portion of the first baffle (210) is disposed on a side of the through hole (301) close to the rotating shaft hole (101), a avoidance hole (201) is provided on the first baffle (210), and the second baffle (220) is disposed on an end of the first baffle (210) close to the rotating shaft hole (101); When the baffle assembly (200) is in the first shielding state, the first baffle (210) is movably arranged relative to the second baffle (220) to shield at least a portion of the port of the circulation channel (110) through at least a portion of the first baffle (210); When the baffle assembly (200) is in the second shielding state, the first baffle (210) and the second baffle (220) are both movably arranged relative to the rotor core (100) to shield at least a portion of the port of the circulation channel (110) through at least a portion of the first baffle (210) and the second baffle (220).

8. The rotor assembly according to claim 7, wherein: The second baffle (220) is slidably connected to the first baffle (210) along the radial direction of the rotor core (100); when the baffle assembly (200) moves from the first blocking state to the second blocking state, the first baffle (210) and the second baffle (220) slide relative to each other, so that at least a portion of the first baffle (210) and at least a portion of the second baffle (220) are blocked at the through hole (301).

9. The rotor assembly according to claim 8, wherein: The rotor assembly further comprises a second elastic member (500), the second elastic member (500) being telescopically arranged along the radial direction of the rotor core, one end of the second elastic member (500) being connected to a side of the mounting groove (303) close to the rotating shaft hole (101), and the other end of the second elastic member (500) being connected to a side of the second baffle (220) close to the rotating shaft hole (101), so as to provide a resetting elastic force for the second baffle (220) when the baffle assembly (200) moves from the first blocking state to the second blocking state, thereby causing the first baffle (210) and the second baffle (220) to slide relative to each other.

10. The rotor assembly according to claim 9, wherein: The first elastic member (400) is a compression spring; and / or, The second elastic member (500) is an elastic rope or a tension spring.

11. The rotor assembly according to claim 8, wherein: The mounting plate (300) includes a top plate (310) and a bottom plate (320), the bottom plate (320) is connected to an end of the rotor core (100), and the baffle assembly (200) is arranged between the top plate (310) and the bottom plate (320); and / or, A first limiting structure (302) extending radially along the rotor core is provided in the installation groove (303); a second limiting structure (211) is provided on the first baffle (210) corresponding to the first limiting structure (302); the first limiting structure (302) and the second limiting structure (211) are slidably matched to limit the movement of the first baffle (210); and / or, The second baffle (220) is provided with a third limiting structure (221) extending radially along the rotor core, and the first baffle (210) is provided with a fourth limiting structure (212), and the third limiting structure (221) and the fourth limiting structure (212) are slidably matched to enable the second baffle (220) to be slidably connected to the first baffle (210).

12. The rotor assembly according to claim 1, wherein: The rotor assembly comprises a plurality of baffle assemblies (200) and a plurality of circulation channels (110), wherein the plurality of baffle assemblies (200) and the plurality of circulation channels (110) are arranged in a one-to-one correspondence, and each baffle assembly (200) is arranged at a port of a corresponding circulation channel (110). Each baffle assembly (200) is movably arranged relative to the rotor core (100) to avoid the corresponding circulation channel (110) or to shield at least a portion of the port of the corresponding circulation channel (110).

13. A compressor, characterized in that: A rotor assembly comprising any one of claims 1 to 12.

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