Swirl compressor and air conditioner

Abstract

The application discloses a movable disc assembly, a scroll compressor and an air conditioner. The movable disc assembly comprises a movable scroll and a throttling piece. The movable scroll is provided with an oil inlet hole, an oil outlet hole and a containing cavity. The oil inlet hole and the oil outlet hole are communicated through the containing cavity. The throttling piece extends into the containing cavity. Along the radial direction of the throttling piece, a first gap and a second gap are formed between the throttling piece and the inner wall of the containing cavity. Along the radial direction of the throttling piece, the width of the first gap is greater than that of the second gap. The asymmetric gap design forms a non-uniform throttling channel between the throttling piece and the inner wall of the containing cavity in the circumferential direction, so that a relatively large gap is left between one side of the throttling piece and the inner wall of the containing cavity, and small metal chips or other foreign matters carried in the lubricating oil can smoothly pass through and will not be stuck in the narrow uniform gap, thereby fundamentally avoiding problems such as lubrication failure caused by oil passage blockage, abnormal wear of the end surface of the movable disc base plate and the bearing hole and the like.

Description

Technical Field

[0001] This application belongs to the field of compressor technology, specifically relating to a moving plate assembly, a scroll compressor, and an air conditioner. Background Technology

[0002] In related technologies, a radial throttling channel is opened on the moving scroll, and a slender throttling rod is inserted into the throttling channel. By controlling the tiny radial gap between the throttling rod and the inner wall of the throttling channel, an annular throttling channel is formed, thereby achieving control of the oil flow rate.

[0003] During actual operation, compressors inevitably accumulate tiny impurities in the lubricating oil, such as metal shavings, bearing coating debris, carbon deposits, or external dust. These impurities can easily become stuck when flowing through the throttling channel, causing partial or complete blockage. Once the throttling channel is blocked, the oil path to the upper moving parts is cut off, leading to severe lubrication failure and posing a significant threat to the compressor's reliability. Utility Model Content

[0004] This application aims to provide a moving plate assembly, a scroll compressor, and an air conditioner that at least solves the problem that the throttling channel is easily blocked by impurities in the related art.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a moving disk assembly, comprising: a moving scroll and a throttling element. The moving scroll is provided with an oil inlet, an oil outlet, and a receiving cavity, the oil inlet and the oil outlet being connected through the receiving cavity. The throttling element extends into the receiving cavity, and along the radial direction of the throttling element, a first gap and a second gap are formed between the throttling element and the inner wall of the receiving cavity. Along the radial direction of the throttling element, the width of the first gap is greater than the width of the second gap.

[0007] The throttling element extends into the receiving cavity, and the gap between its radial section and the inner wall of the receiving cavity is designed to be non-uniformly distributed. Along the radial direction of the throttling element, a non-uniform gap is formed between one side of the throttling element and the inner wall of the receiving cavity. This asymmetrical gap design creates a non-uniform throttling channel in the circumferential direction between the throttling element and the inner wall of the receiving cavity, resulting in a relatively large gap between one side of the throttling element and the inner wall of the receiving cavity. When lubricating oil flows in from the oil inlet and passes through this non-uniform gap, it is still subject to throttling, thereby controlling the flow rate to the oil outlet and facilitating stable oil discharge from the compressor. However, compared to the uniform small-gap throttling technology of related technologies, this non-uniform gap provides a larger channel size locally, allowing small metal debris or other foreign objects carried in the lubricating oil to pass smoothly without being stuck in the narrow uniform gap. This fundamentally avoids problems such as lubrication failure, abnormal wear of the moving plate end face and bearing holes caused by oil passage blockage, thus improving the compressor's service life and operational reliability.

[0008] In some technical solutions, optionally, the throttling element includes a first throttling section and a second throttling section. The first throttling section is located inside the receiving cavity and is close to the oil inlet. The circumferential direction of the first throttling section is spaced apart from the inner wall of the receiving cavity. The first throttling section is located at the end of the second throttling section near the oil inlet, and the maximum radial dimension of the first throttling section is smaller than the minimum radial dimension of the second throttling section.

[0009] To achieve more precise throttling and anti-clogging functions, the throttling device can be further structurally divided, comprising a first throttling section and a second throttling section. The first throttling section is located within the receiving cavity, close to the oil inlet, and positioned in the opening direction of the oil inlet. This means that lubricating oil flowing in from the oil inlet will first impact or flow through the first throttling section. The entire circumferential surface of the first throttling section maintains a certain distance from the inner wall of the receiving cavity, thus forming an annular initial throttling gap between them. A key feature of the first throttling section is that its maximum radial dimension is designed to be smaller than the minimum radial dimension of the second throttling section. This stepwise change in size makes the overall fit clearance between the first throttling section and the receiving cavity larger than that between the subsequent second throttling section and the receiving cavity. This design allows larger particles in the lubricating oil to pass through at the flow path inlet more frequently, serving as a preliminary pre-passage mechanism for foreign matter.

[0010] In some technical solutions, optionally, the distance between the side of the second throttling part facing the oil outlet and the inner wall of the receiving cavity is greater than the distance between the side of the throttling element away from the oil outlet and the inner wall of the receiving cavity.

[0011] The position with a large gap between the throttling element and the inner wall of the receiving cavity is set on the side of the throttling element facing the oil outlet. Particulate matter in the oil will flow to the side of the throttling element facing the oil outlet and flow to the oil outlet through the gap between the throttling element and the inner wall of the receiving cavity. In this case, the particulate matter in the oil can flow directly to the oil outlet, avoiding blockage caused by the particulate matter flowing around the throttling element.

[0012] In some technical solutions, optionally, the second throttling section has a tangential plane on the side facing the oil outlet, and a first gap is formed between the tangential plane and the inner wall of the receiving cavity.

[0013] A tangential plane is provided on the side of the second throttling section facing the oil outlet. This tangential plane is essentially a flat surface obtained by cutting the outer cylindrical surface of the second throttling section, which might otherwise be cylindrical. A significantly larger gap space is naturally formed between the tangential plane and the cylindrical inner wall of the receiving cavity. This method of creating a non-uniform gap by changing the local shape is simple to manufacture, low in cost, and highly effective. The presence of the tangential plane provides a wide channel for lubricating oil and foreign matter in a specific direction, while the rest of the throttling element maintains a small gap with the inner wall of the receiving cavity to maintain the necessary throttling effect. This design enhances the oil passage's anti-clogging capability without affecting the throttling function.

[0014] In some technical solutions, optionally, the cutting edge plane extends along the length direction of the second throttling section to the first throttling section.

[0015] The continuously extending tangential plane forms a stable, uniformly sized, and wide flow channel throughout the throttling region. Maintaining the continuity of the non-uniform gap avoids abrupt changes in the flow cross-section that may occur at different axial positions of the throttling element.

[0016] In some technical solutions, the throttling element may optionally include an eccentric section that is eccentrically positioned relative to the receiving cavity, with the centerline of the eccentric section located on the side of the receiving cavity opposite to the oil outlet.

[0017] In some technical solutions, the eccentric section may optionally include at least a second throttling section.

[0018] In some technical solutions, the throttling element may optionally include a third throttling section, which is located at the end of the second throttling section away from the first throttling section. The maximum radial dimension of the third throttling section is smaller than the minimum radial dimension of the second throttling section, and the circumferential direction of the third throttling section is spaced apart from the inner wall of the receiving cavity.

[0019] In some technical solutions, optionally, the moving scroll includes a disk body and moving scroll teeth, with the oil inlet hole penetrating the end face of the disk body away from the moving scroll teeth and the oil outlet hole penetrating the end face of the disk body close to the moving scroll teeth.

[0020] And / or, along the axial direction of the moving scroll, the first throttling section corresponds at least partially to the oil inlet hole;

[0021] And / or, along the axial direction of the moving scroll, the third throttling section corresponds at least partially to the oil outlet.

[0022] In some technical solutions, the throttling element may optionally include: a connecting portion located at the end of the second throttling portion away from the first throttling portion, the connecting portion being interference-fitted with the receiving cavity, or the connecting portion being threadedly connected to the inner wall of the receiving cavity.

[0023] Secondly, embodiments of this application provide a scroll compressor, which includes the aforementioned moving disc assembly.

[0024] Thirdly, embodiments of this application propose an air conditioner that includes the aforementioned scroll compressor.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of the moving disk assembly according to an embodiment of the present utility model;

[0028] Figure 2 yes Figure 1 Cross-sectional view along the AA direction;

[0029] Figure 3 This is a partial structural schematic diagram of the moving disk assembly according to an embodiment of the present utility model;

[0030] Figure 4 yes Figure 1 Cross-sectional view along the BB direction;

[0031] Figure 5 This is a partial structural schematic diagram of the moving disk assembly according to an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the throttling element according to an embodiment of the present utility model;

[0033] Figure 7 This is a schematic diagram of the throttling element according to an embodiment of the present utility model;

[0034] Figure 8 This is a partial structural schematic diagram of the moving disk assembly according to an embodiment of the present utility model;

[0035] Figure 9 This is a partial structural schematic diagram of the moving disk assembly according to an embodiment of the present utility model;

[0036] Figure 10 This is a structural schematic diagram of the throttling element according to an embodiment of the present utility model.

[0037] Figure label:

[0038] 100 Moving disk assembly, 110 Moving scroll, 111 Oil inlet, 112 Oil outlet, 113 Receiving cavity, 114 First gap, 115 Second gap, 116 Disk body, 117 Moving scroll tooth, 120 Throttling element, 121 First throttling section, 122 Second throttling section, 123 Cutting edge plane, 124 Third throttling section, 125 Connecting part, 126 Eccentric section. Detailed Implementation

[0039] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0040] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] The following is combined Figures 1-10 This invention describes a moving disc assembly, a scroll compressor, and an air conditioner according to embodiments of the present invention.

[0044] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of this application, a moving disk assembly 100 is proposed. The moving disk assembly 100 includes a moving scroll 110 and a throttling element 120. The moving scroll 110 is provided with an oil inlet 111, an oil outlet 112, and a receiving cavity 113. The oil inlet 111 and the oil outlet 112 are connected through the receiving cavity 113. The throttling element 120 extends into the receiving cavity 113, and along the radial direction of the throttling element 120 ( Figure 5 (The arrow at R in the middle points to) A first gap 114 and a second gap 115 are formed between the throttling element 120 and the inner wall of the receiving cavity 113. Along the radial direction of the throttling element 120, the width of the first gap 114 is greater than the width of the second gap 115.

[0045] The moving scroll 110 typically consists of three parts: a scroll, a base plate, and a bearing structure. To achieve lubrication, the moving scroll 110 has a dedicated lubrication oil passage, specifically composed of an oil inlet 111, an oil outlet 112, and a receiving cavity 113 connecting the two. The oil inlet 111 introduces oil from the compressor oil sump, while the oil outlet 112 discharges the lubricating oil. The receiving cavity 113 serves as a connecting channel, its core function being to accommodate the throttling element 120 and provide a controllable flow path for the lubricating oil.

[0046] The throttling element 120 extends into the receiving cavity 113, and the gap between its radial section and the inner wall of the receiving cavity 113 is designed to be non-uniformly distributed. Along the radial direction of the throttling element 120, a non-uniform gap is formed between one side of the throttling element 120 and the inner wall of the receiving cavity 113, with a first gap and a second gap existing between them. The width of the first gap is greater than the width of the second gap. This asymmetrical gap design creates a non-uniform throttling channel in the circumferential direction between the throttling element 120 and the inner wall of the receiving cavity 113, resulting in a relatively large gap between one side of the throttling element 120 and the inner wall of the receiving cavity 113. When lubricating oil flows in from the oil inlet 111 and passes through this non-uniform gap, it is still subject to throttling, thereby controlling the flow rate to the oil outlet 112, which is beneficial to the stability of the compressor's oil discharge. However, compared with the uniform small-gap throttling of related technologies, this non-uniform gap provides a larger channel size locally, allowing tiny metal debris or other foreign objects carried in the lubricating oil to pass through smoothly without being stuck in the narrow uniform gap. This fundamentally avoids problems such as lubrication failure, abnormal wear of the moving plate end face and bearing holes caused by oil circuit blockage, and improves the service life and operational reliability of the compressor.

[0047] Combination Figure 1 , Figure 2 , Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown, in some embodiments, optionally, the throttling element 120 includes a first throttling portion 121 and a second throttling portion 122. The first throttling portion 121 is located within the receiving cavity 113 and is close to the oil inlet hole 111. The circumferential direction of the first throttling portion 121 is ( Figure 7 The arrow at point C points to the inner wall of the receiving cavity 113. The first throttling section 121 is located at the end of the second throttling section 122 near the oil inlet, and the maximum radial dimension of the first throttling section 121 is smaller than the minimum radial dimension of the second throttling section 122.

[0048] To achieve more precise throttling and anti-clogging functions, the throttling element 120 can be further structurally divided, including a first throttling section 121 and a second throttling section 122. The first throttling section 121 is located within the receiving cavity 113, close to the oil inlet 111, and is positioned in the opening direction of the oil inlet 111. Figure 2The arrow at point D1 points upwards, indicating that the lubricating oil flowing in from the oil inlet 111 will first impact or flow through the first throttling section 121. The entire circumferential surface of the first throttling section 121 maintains a certain distance from the inner wall of the receiving cavity 113, thus forming an annular initial throttling gap between them. A key feature of the first throttling section 121 is that its maximum radial dimension is designed to be smaller than the minimum radial dimension of the second throttling section 122. This stepwise change in size makes the overall fit clearance between the first throttling section 121 and the receiving cavity 113 larger than the fit clearance between the subsequent second throttling section 122 and the receiving cavity 113. This design allows larger particles in the lubricating oil to pass through at the flow path inlet more frequently, serving as a preliminary pre-passage mechanism for foreign matter.

[0049] Moreover, the entire circumferential surface of the first throttling section 121 maintains a certain distance from the inner wall of the receiving cavity 113. Even if there are certain particles in the oil, the particles can flow smoothly into the side with a large fitting gap between the second throttling section 122 and the receiving cavity 113, which is conducive to the smooth flow of particles in the oil to the oil outlet 112.

[0050] Combination Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, in some embodiments, optionally, the distance between the side of the second throttling portion 122 facing the oil outlet 112 and the inner wall of the receiving cavity 113 is greater than the distance between the side of the throttling element 120 away from the oil outlet 112 and the inner wall of the receiving cavity 113.

[0051] To optimize the passage path of foreign matter and guide the flow direction, the relative positions of the second throttling section 122 and the receiving cavity 113 are defined. Specifically, the distance between the side of the second throttling section 122 facing the oil outlet 112 and the inner wall of the receiving cavity 113 is designed to be relatively large, while the distance between the side of the throttling member 120 facing away from the oil outlet 112 and the inner wall of the receiving cavity 113 is relatively small. In the non-uniform gap formed by the second throttling section 122 within the receiving cavity 113, the larger gap space is arranged on the side closer to the oil outlet 112.

[0052] The position with a large gap between the throttling element 120 and the inner wall of the receiving cavity 113 is set on the side of the throttling element 120 facing the oil outlet 112. Particulate matter in the oil will flow to the side of the throttling element 120 facing the oil outlet 112 and flow to the oil outlet 112 through the gap between the throttling element 120 and the inner wall of the receiving cavity 113. In this case, the particulate matter in the oil can flow directly to the oil outlet 112, avoiding blockage caused by the particulate matter in the oil flowing circumferentially in the throttling element 120.

[0053] Combination Figure 1 , Figure 2, Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, optionally, the second throttling portion 122 is provided with a tangent plane 123 on the side facing the oil outlet 112, and a first gap 114 is formed between the tangent plane 123 and the inner wall of the receiving cavity 113.

[0054] A tangential plane 123 is provided on the side of the second throttling section 122 facing the oil outlet 112. This tangential plane 123 is essentially a flat surface obtained by cutting the outer cylindrical surface of the second throttling section 122, which might otherwise be cylindrical. A significantly larger gap space is naturally formed between the tangential plane 123 and the cylindrical inner wall of the receiving cavity 113. This method of creating a non-uniform gap by changing the local shape is simple to manufacture, low in cost, and highly effective. The presence of the tangential plane 123 provides a wide channel for lubricating oil and foreign matter in a specific direction, while the rest of the throttling element 120 maintains a small gap with the inner wall of the receiving cavity 113 to maintain the necessary throttling effect. This design enhances the oil passage's anti-clogging capability without affecting the throttling function.

[0055] Combination Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, in some embodiments, optionally, the cutting edge plane 123 is along the length direction of the second throttling portion 122 ( Figure 7 The arrow at L in the middle points to) extending to the first throttling section 121.

[0056] The tangential plane 123 extends along the length of the second throttling section 122, meaning that the tangential plane 123 is not a localized, point-like pit or groove, but a continuous plane extending through the axial length of the second throttling section 122. This continuously extending tangential plane 123 forms a stable, uniformly sized, and wide flow channel throughout the throttling region. Maintaining the continuity of the non-uniform gap avoids abrupt changes in the flow cross-section that may occur at different axial positions of the throttling element 120, resulting in smoother lubricating oil flow. It also provides a continuous, unobstructed passage for foreign matter, improving the reliability of anti-clogging performance.

[0057] When the inner wall of the receiving cavity 113 is a standard annular shape, the throttling element 120 is designed as a non-complete cylinder. That is, one or more tangential planes 123 extending along their own length are machined on the cylindrical surface of the throttling element 120. One or more crescent-shaped channels are formed between the tangential planes 123 and the inner wall of the annular receiving cavity 113. The tangential planes 123 are simple to machine, their accuracy is easy to guarantee, and they have excellent engineering feasibility.

[0058] In some embodiments, the throttling element 120 may optionally include an eccentric segment 126 disposed eccentrically relative to the receiving cavity 113, the centerline of the eccentric segment 126 being located on the side of the centerline of the receiving cavity 113 away from the oil outlet 112.

[0059] In this embodiment, the eccentric section 126 is positioned eccentrically relative to the receiving cavity 113, such that the centerline of the eccentric section 126 (assuming it is cylindrical) deviates from the centerline of the receiving cavity 113 (also cylindrical), and the centerline of the eccentric section 126 is positioned on the side of the receiving cavity 113 opposite to the oil outlet 112. This eccentric assembly results in a very small gap (minimum gap side) between one side of the throttling element 120 and the inner wall of the receiving cavity 113, and a large gap (maximum gap side) on the opposite side. By controlling the direction and size of the eccentricity, the position and size of the maximum gap can be precisely controlled. Positioning the maximum gap side on the side of the throttling element 120 facing the oil outlet 112 facilitates the smooth passage of foreign matter through the entire throttling section, effectively preventing blockage and allowing particulate matter in the oil to flow smoothly to the oil outlet 112.

[0060] In some embodiments, the eccentric segment 126 may optionally include at least the second throttling section 122.

[0061] The second throttling section 122 can be eccentrically disposed within the receiving cavity 113, or both the first throttling section 121 and the second throttling section 122 can be eccentrically disposed within the receiving cavity 113.

[0062] Combination Figure 1 , Figure 2 and Figure 10 As shown, in some embodiments, optionally, the throttling element 120 further includes: a third throttling portion 124, the third throttling portion 124 being located at the end of the second throttling portion 122 away from the first throttling portion 121, and the third throttling portion 124 being located in the opening direction of the oil outlet 112 ( Figure 2 (The arrow at D2 points upwards) The maximum radial dimension of the third throttling section 124 is smaller than the minimum radial dimension of the second throttling section 122, and the circumferential direction of the third throttling section 124 is spaced apart from the inner wall of the receiving cavity 113.

[0063] To optimize the flow characteristics at the outlet of the flow channel, a third throttling section 124 can be added to the throttling element 120. The third throttling section 124 is located at the second end of the second throttling section 122 (i.e., the end away from the first throttling section 121), and the third throttling section 124 corresponds to the opening direction of the oil outlet 112, so that the lubricating oil flowing towards the oil outlet 112 will eventually flow through the third throttling section 124. Similar to the first throttling section 121, the maximum radial dimension of the third throttling section 124 is also smaller than the minimum radial dimension of the second throttling section 122, so a circumferential gap is also formed between it and the inner wall of the receiving cavity 113. This gap located at the end of the flow channel can play a similar role to the first throttling section 121. For example, it can smooth out the turbulence that may exist after passing through the main throttling area (the area where the second throttling section 122 is located), and also prevent particulate matter from accumulating at the outlet, thereby further improving the stability and reliability of the entire lubrication system.

[0064] In some embodiments, the moving scroll 110 may optionally include a disk body 116 and a moving scroll tooth 117, with an oil inlet 111 penetrating the end face of the disk body 116 away from the end of the moving scroll tooth 117, and an oil outlet 112 penetrating the end face of the disk body 116 near the end of the moving scroll tooth 117.

[0065] And / or, along the axial direction of the moving scroll 110 ( Figure 2 (The arrow at H in the middle points to) the first throttling section 121 at least partially corresponds to the oil inlet hole 111;

[0066] And / or, along the axial direction of the moving scroll 110, the third throttling section 124 corresponds at least partially to the oil outlet 112.

[0067] Combination Figure 1 , Figure 2 and Figure 7 As shown, in some embodiments, optionally, the throttling element 120 further includes: a connecting portion 125, the connecting portion 125 being located at one end of the second throttling portion 122 away from the first throttling portion 121, the connecting portion 125 being interference-fitted with the receiving cavity 113, or the connecting portion 125 being threadedly connected to the inner wall of the receiving cavity 113.

[0068] To ensure reliable fixation of the throttling element 120 within the receiving cavity 113 and to prevent lubricating oil leakage from the installation position, the throttling element 120 also includes a connecting portion 125. The connection between the connecting portion 125 and the receiving cavity 113 is achieved through either an interference fit or a threaded connection. An interference fit is achieved by ensuring the outer diameter of the connecting portion 125 is slightly larger than the inner diameter of the receiving cavity 113. After the connecting portion 125 is pressed in, the elastic deformation of the material generates a large clamping force, thereby achieving a tight fit and seal. A threaded connection is achieved by machining external threads on the connecting portion 125 and internal threads on the receiving cavity 113, and then tightening them together. Both methods effectively and securely mount the throttling element 120 onto the moving scroll 110, forming a reliable seal between the throttling element 120 and the receiving cavity 113. This prevents high-pressure lubricating oil from leaking through assembly gaps and facilitates the flow of lubricating oil through the designed throttling gap to the oil outlet 112, thereby precisely controlling the flow rate of the lubricating oil.

[0069] The moving scroll 110 is divided into three parts from top to bottom: the scroll, the base plate, and the bearing structure. Radial oil holes and their connecting structures are provided on the outer circumference of the base plate. The receiving cavity 113 is a blind hole structure. The connecting structure is located on the outer circumference of the base plate. An oil outlet hole 112 is provided on the end face of the base plate near the scroll, close to the outer circumference of the base plate, and the oil outlet hole 112 communicates with the receiving cavity 113. In addition, an oil inlet hole 111 is also provided on the end face of the base plate near the bearing structure, located inside the bearing hole, and the oil inlet hole 111 communicates with the receiving cavity 113. The oil outlet hole 112, the receiving cavity 113, and the oil inlet hole 111 combine to form a refrigerant oil flow path. The throttling element 120 is divided into two parts: a head columnar structure and a tail assembly connecting structure. The receiving cavities 113 are connected to each other, and the head columnar structure is clearance-fitted with the receiving cavity 113. This clearance throttles the fluid flowing through this location, controlling the fluid flow rate. The connection structure between the tail assembly and the receiving cavity 113 is connected by interference fit or bolts to form a sealed structure. In this embodiment, the shape and structure of the throttling element 120 are changed so that the gap between the throttling element 120 and the receiving cavity 113 becomes non-uniformly distributed. This allows for the passage of larger foreign objects through the clearance while keeping the cross-sectional area of ​​the gap between the throttling element 120 and the receiving cavity 113 constant or slightly increased. This prevents the compressor from discharging oil and avoids the blockage of the channel by substances generated during the initial bearing break-in period or foreign objects in the oil circuit, which could lead to wear on the end face of the moving plate base and the bearing hole, thus improving the reliability of the compressor.

[0070] The head of the throttling device 120 is non-cylindrical, and the cross-sectional shape of the throttling device 120 is an arc with a tangent. The inner diameter of the receiving cavity 113 and the outer diameter of the arc of the throttling device 120 are reduced to ensure that the flow area of ​​the channel remains unchanged.

[0071] Alternatively, the head of the throttling element 120 may be cylindrical, but the outer circle of the throttling element 120 may not be concentric with the receiving cavity 113.

[0072] In some embodiments, the two embodiments described above are used in a coupled manner.

[0073] In the embodiments of this application, a scroll compressor is proposed. The scroll compressor includes the moving disk assembly in any of the above embodiments and can achieve the same technical effect, which will not be described again here.

[0074] In an embodiment of this application, an air conditioner is proposed, which includes the scroll compressor described in the above embodiment and can achieve the same technical effect, which will not be repeated here.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A moving disk assembly, characterized in that, include: A moving scroll plate, wherein the moving scroll plate is provided with an oil inlet hole, an oil outlet hole and a receiving cavity, and the oil inlet hole and the oil outlet hole are connected through the receiving cavity; A throttling element extends into the receiving cavity. Along the radial direction of the throttling element, a first gap and a second gap are formed between the throttling element and the inner wall of the receiving cavity. Along the radial direction of the throttling element, the width of the first gap is greater than the width of the second gap.

2. The moving disk assembly according to claim 1, characterized in that, The throttling element includes: The first throttling section is located inside the receiving cavity and is close to the oil inlet. The first throttling section is circumferentially spaced from the inner wall of the receiving cavity. The second throttling section is located at the end of the second throttling section near the oil inlet, and the maximum radial dimension of the first throttling section is smaller than the minimum radial dimension of the second throttling section.

3. The moving disk assembly according to claim 2, characterized in that, The distance between the side of the second throttling part facing the oil outlet and the inner wall of the receiving cavity is greater than the distance between the side of the throttling element away from the oil outlet and the inner wall of the receiving cavity.

4. The moving disk assembly according to claim 2, characterized in that, The second throttling section has a tangential plane on the side facing the oil outlet, and the tangential plane forms the first gap with the inner wall of the receiving cavity.

5. The moving disk assembly according to claim 4, characterized in that, The cutting plane extends along the length of the second throttling section to the first throttling section.

6. The moving disk assembly according to claim 2, characterized in that, The throttling device includes an eccentric section that is offset from the receiving cavity, and the centerline of the eccentric section is located on the side of the centerline of the receiving cavity away from the oil outlet.

7. The moving disk assembly according to claim 6, characterized in that, The eccentric section includes at least the second throttling section.

8. The moving disk assembly according to claim 2, characterized in that, The throttling device further includes: The third throttling section is located at the end of the second throttling section away from the first throttling section. The maximum radial dimension of the third throttling section is smaller than the minimum radial dimension of the second throttling section. The circumferential direction of the third throttling section is spaced apart from the inner wall of the receiving cavity.

9. The moving disk assembly according to claim 8, characterized in that, The moving scroll includes a disk body and moving scroll teeth. The oil inlet hole penetrates the end face of the disk body away from the moving scroll teeth, and the oil outlet hole penetrates the end face of the disk body near the moving scroll teeth. And / or, along the axial direction of the moving scroll, the first throttling portion corresponds at least partially to the oil inlet hole; And / or, along the axial direction of the moving scroll, the third throttling section corresponds at least partially to the oil outlet.

10. The moving disk assembly according to claim 2, characterized in that, Also includes: The connecting part is located at the end of the second throttling part away from the first throttling part. The connecting part is interference-fitted with the receiving cavity, or the connecting part is threadedly connected to the inner wall of the receiving cavity.

11. A scroll compressor, characterized in that, include: The moving disc assembly as described in any one of claims 1 to 10.

12. An air conditioner, characterized in that, include: The scroll compressor as described in claim 11.

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