Oil blocking structure and compressor
By designing an oil baffle structure and utilizing the connection between the oil baffle plate and the mounting components and the iron core, the problem of rotor end plate warping was solved, resulting in noise reduction and improved stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANCHANG HICHLY ELECTRICAL APPLIANCE
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-05
AI Technical Summary
In existing refrigeration compressors, uneven riveting of the rotor end plate causes it to warp, resulting in excessive noise and affecting reliability and system efficiency.
An oil-blocking structure is adopted, including an oil-blocking plate, an end plate, a mounting component, and an iron core. It is connected to the through hole through the first connecting post, and the mounting component is fixed to the iron core to prevent the end plate from warping and reduce noise.
It effectively prevents end plate warping, reduces compressor noise, and improves stability and reliability.
Smart Images
Figure CN224326408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field, and in particular to an oil baffle structure and a compressor. Background Technology
[0002] Currently, oil return in refrigeration compressors (especially inverter compressors) is one of the key factors affecting compressor reliability and system efficiency. To reduce the problem of high oil output during compressor operation, an integrated balance block is usually riveted to the rotor. The rivet passes through the integrated balance block, end plate, and iron core. The end plate is 1.0mm thick. Due to the thinness of the end plate, uneven force is applied during riveting. When the end plate is riveted to the balance block, the edge of the end plate will warp, which will cause the compressor to have excessive noise.
[0003] Therefore, there is an urgent need for an oil-blocking structure and compressor to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this invention is to provide an oil-blocking structure and compressor that can prevent the end plate from warping and reduce compressor noise.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] An oil-blocking structure includes: an oil-blocking plate, an end plate, a plurality of mounting components, and an iron core. The end face of the oil-blocking plate facing the iron core is provided with a plurality of first connecting posts protruding circumferentially. The plurality of first connecting posts are arranged one-to-one with the plurality of mounting components. The end plate is provided with a plurality of through holes circumferentially. The plurality of first connecting posts are arranged one-to-one with the plurality of through holes. The first connecting posts can pass through the through holes and abut against the iron core. One end of each mounting component can pass through the first connecting post and connect to the iron core.
[0007] As a preferred technical solution of the above-mentioned oil-blocking structure, it further includes a balance block, which protrudes from a portion of the end face of the oil-blocking plate facing the iron core. The other portion of the end face of the oil-blocking plate is a first end face, and the end face of the balance block is a second end face. A second connecting post coaxial with the first connecting post is provided on the first end face. The diameter of the second connecting post is larger than the diameter of the first connecting post, and the first connecting post protrudes from the second connecting post in a stepped manner.
[0008] As a preferred embodiment of the aforementioned oil-blocking structure, the height of the second connecting column is equal to the height of the balance block.
[0009] As a preferred technical solution of the above-mentioned oil-blocking structure, the first connecting post is provided on the second end face, and the first connecting post protrudes from the second end face in a stepped manner.
[0010] As a preferred technical solution of the above-mentioned oil-blocking structure, the balance block, the oil-blocking plate, the second connecting column and the first connecting column are integrally formed.
[0011] As a preferred embodiment of the above-mentioned oil-blocking structure, the height of the first connecting column is greater than the thickness of the end plate, and the difference is A, wherein 0mm < A ≤ 0.1mm.
[0012] As a preferred embodiment of the aforementioned oil-blocking structure, the height of the first connecting column is less than the thickness of the end plate.
[0013] As a preferred embodiment of the above-mentioned oil-blocking structure, the outer diameter of the first connecting post is not greater than the diameter of the through hole.
[0014] As a preferred embodiment of the aforementioned oil-blocking structure, four first connecting posts are provided, and the four first connecting posts are evenly spaced along the circumference.
[0015] A compressor includes a motor, the motor including a rotor and an oil baffle structure as described in the preferred embodiment above, the oil baffle structure being disposed at one or both ends of the rotor.
[0016] The beneficial effects of this utility model are:
[0017] This utility model provides an oil-blocking structure. The oil-blocking structure includes: an oil-blocking plate, an end plate, several mounting components, and an iron core. The end face of the oil-blocking plate facing the iron core has several first connecting posts protruding circumferentially, each corresponding to one of the mounting components. The end plate has several through holes circumferentially, each corresponding to one of the first connecting posts. The first connecting posts can pass through the through holes and abut against the iron core. One end of each mounting component can pass through a first connecting post and connect to the iron core. Compared to existing technologies, this oil-blocking structure's first connecting posts pass through the through holes, and one end of each mounting component passes through a first connecting post and connects to the iron core, fixing the oil-blocking plate, end plate, and iron core. The mounting components act on the first connecting posts, preventing the end plate from warping under stress and reducing noise.
[0018] This invention also provides a compressor, including a motor, which comprises a rotor and the oil-blocking structure described in the above embodiments. The oil-blocking structure is disposed at one or both ends of the rotor. Compared to the prior art, this compressor generates less noise during operation. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the oil-blocking structure provided in an embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the oil baffle provided in an embodiment of the present invention.
[0022] In the picture:
[0023] 1. First connecting post; 2. Balance block; 21. Second end face; 3. Oil baffle; 31. First end face; 4. End plate; 41. Through hole; 5. Iron core; 6. Second connecting post; 7. Riveting hole. Detailed Implementation
[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0028] like Figure 1 and Figure 2 As shown, this utility model provides an oil-blocking structure. The oil-blocking structure includes: an oil-blocking plate 3, an end plate 4, several mounting parts, and an iron core 5.
[0029] Specifically, the oil baffle plate 3 has a plurality of first connecting posts 1 protruding circumferentially on its end face facing the iron core 5. Each of the first connecting posts 1 corresponds to a plurality of mounting parts. The end plate 4 has a plurality of through holes 41 circumferentially, with each of the first connecting posts 1 corresponding to a plurality of through holes 41. The first connecting posts 1 can pass through the through holes 41 and abut against the iron core 5. One end of the mounting part can pass through the first connecting post 1 and connect to the iron core 5. Compared to the prior art, this oil baffle structure has first connecting posts 1 passing through the through holes 41, and one end of the mounting part passing through the first connecting post 1 and connecting to the iron core 5, thus fixing the oil baffle plate 3, end plate 4, and iron core 5. The mounting part acts on the first connecting posts 1, preventing the end plate 4 from warping under stress and reducing noise.
[0030] Optionally, the oil-blocking structure includes a balance block 2, which protrudes from a portion of the end face of the oil-blocking plate 3 facing the iron core 5. The other portion of the end face of the oil-blocking plate 3 is a first end face 31, and the end face of the balance block 2 is a second end face 21. A second connecting post 6, coaxial with the first connecting post 1, is provided on the first end face 31. The diameter of the second connecting post 6 is larger than the diameter of the first connecting post 1, and the first connecting post 1 protrudes beyond the second connecting post 6 in a stepped manner. Further, a first connecting post 1 is provided on the second end face 21, protruding beyond the second end face 21 in a stepped manner. Specifically, the balance block 2 is arc-shaped and fixedly connected to a portion of the end face of the oil-blocking plate 3. An end plate 4 abuts against the balance block 2 and the iron core 5, fixing the end plate 4, preventing its movement, and improving its stability. Simultaneously, the large contact area between the end plate 4 and the balance block 2 disperses the force, preventing deformation of the end plate 4.
[0031] Optionally, the mounting component is a rivet. The oil baffle plate 3, the second connecting post 6 and the first connecting post 1 are all provided with rivet holes 7. The rivets pass through the corresponding rivet holes 7 in sequence and are connected to the iron core 5.
[0032] Optionally, the balance block 2, the oil baffle 3, the second connecting column 6, and the first connecting column 1 are integrally formed, which can improve the stability of the oil baffle structure.
[0033] Optionally, the height of the first connecting post 1 is greater than the thickness of the end plate 4, with a difference of A, where 0mm≤A≤0.1mm, which can prevent the end plate 4 from being subjected to force and avoid deformation of the end plate 4.
[0034] Furthermore, the height of the second connecting post 6 is equal to the height of the balance block 2, and the height of the first connecting post 1 is the same as the thickness of the end plate 4, i.e., A = 0. This ensures that when the first connecting post 1 abuts against the end face of the iron core 5, the second connecting post 6 also abuts against the iron core 5. The end plate 4 is located between the stepped surface between the second connecting post 6 and the first connecting post 1 and the end face of the iron core 5, which can improve the stability of the end plate 4 while ensuring that it is not subjected to force. Furthermore, the height of the first connecting post 1 is less than the thickness of the end plate 4, allowing it to be connected to the iron core 5 via a mounting component that penetrates the end plate 4 and the first connecting post 1.
[0035] Optionally, the outer diameter of the first connecting post 1 is not greater than the diameter of the through hole 41, so that the first connecting post 1 can pass smoothly through the through hole 41.
[0036] Furthermore, the outer diameter of the first connecting post 1 is the same as the diameter of the through hole 41, which allows the outer wall of the first connecting post 1 to fit tightly against the hole wall of the through hole 41, thus preventing the end plate 4 from shaking.
[0037] Optionally, four first connecting posts 1 are provided, and the four first connecting posts 1 are evenly spaced along the circumference. Specifically, in this embodiment, three first connecting posts 1 are provided on the first end face 31, and one first connecting post 1 is provided on the second end face 21, which can improve the stability of the end plate 4. Of course, in some other embodiments, the number of first connecting posts 1 is determined according to the actual situation, which will not be elaborated here.
[0038] This utility model also provides a compressor, including a motor, the motor including a rotor and the oil baffle structure in the above embodiment, the oil baffle structure being disposed at one or both ends of the rotor, and the compressor also including other essential components that constitute a compressor in the prior art.
[0039] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.
Claims
1. An oil-blocking structure, characterized in that, include: The oil baffle (3), end plate (4), several mounting parts and iron core (5) are provided. The end face of the oil baffle (3) facing the iron core (5) is provided with several first connecting posts (1) protruding in the circumferential direction. The several first connecting posts (1) are arranged in a corresponding manner with the several mounting parts. The end plate (4) is provided with several through holes (41) in the circumferential direction. The several first connecting posts (1) are arranged in a corresponding manner with the several through holes (41). The first connecting posts (1) can pass through the through holes (41) and abut against the iron core (5). One end of the mounting part can pass through the first connecting post (1) and connect to the iron core (5).
2. The oil-blocking structure according to claim 1, characterized in that, It also includes a balance block (2), which protrudes from a portion of the end face of the oil baffle (3) facing the iron core (5). The other portion of the end face of the oil baffle (3) is a first end face (31), and the end face of the balance block (2) is a second end face (21). A second connecting post (6) coaxial with the first connecting post (1) is provided on the first end face (31). The diameter of the second connecting post (6) is larger than the diameter of the first connecting post (1). The first connecting post (1) protrudes from the second connecting post (6) in a stepped manner.
3. The oil-blocking structure according to claim 2, characterized in that, The height of the second connecting column (6) is equal to the height of the balance block (2).
4. The oil-blocking structure according to claim 2, characterized in that, The second end face (21) is provided with the first connecting post (1), which protrudes from the second end face (21) in a stepped manner.
5. The oil-blocking structure according to claim 4, characterized in that, The balance block (2), the oil baffle (3), the second connecting column (6), and the first connecting column (1) are integrally formed.
6. The oil-blocking structure according to claim 1, characterized in that, The height of the first connecting post (1) is greater than the thickness of the end plate (4), and the difference is A, where 0mm < A ≤ 0.1mm.
7. The oil-blocking structure according to claim 1, characterized in that, The height of the first connecting post (1) is less than the thickness of the end plate (4).
8. An oil-blocking structure according to any one of claims 1-7, characterized in that, The outer diameter of the first connecting post (1) is not greater than the diameter of the through hole (41).
9. An oil-blocking structure according to any one of claims 1-7, characterized in that, There are four first connecting posts (1), and the four first connecting posts (1) are evenly spaced along the circumference.
10. A compressor, comprising a motor, characterized in that, The motor includes a rotor and an oil baffle structure as described in any one of claims 1-9, wherein the oil baffle structure is disposed at one or both ends of the rotor.