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CN-122014621-A - Oil blocking structure, motor and compressor

CN122014621ACN 122014621 ACN122014621 ACN 122014621ACN-122014621-A

Abstract

The application discloses an oil blocking structure, a motor and a compressor. The oil retaining structure comprises a baffle, wherein a boss part is integrally formed on a first side of the baffle, and a balancing part is integrally formed on a second side of the baffle opposite to the first side. The oil blocking structure, the motor and the compressor can solve the problems that in the prior art, the high-rotation-speed large-displacement compressor has higher oil discharge rate and the rotor baffle, the oil blocking plate and the counterweight are complicated to assemble.

Inventors

  • YIN HANG
  • LI WEI
  • TAO MEIHUA

Assignees

  • 深圳市杉川海泽万象科技有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (12)

  1. 1. An oil retaining structure, comprising: Baffle (10), the first side integrated into one piece of baffle (10) is provided with boss portion, the second side integrated into one piece that baffle (10) and first side are relative is provided with balanced portion.
  2. 2. The oil baffle structure according to claim 1, wherein the baffle plate (10) has a circular plate-like structure, the boss portion includes a plurality of protruding strips (11), the plurality of protruding strips (11) extend a predetermined length inward along an outer circumference of the baffle plate (10), and the plurality of protruding strips (11) are each provided obliquely in a clockwise or counterclockwise direction.
  3. 3. The oil baffle structure according to claim 1, wherein the baffle plate (10) has a circular plate-like structure, the balance portion includes an arc-shaped balance weight (12), and an outer peripheral side of the arc-shaped balance weight (12) is flush with an outer peripheral side of the circular plate-like structure.
  4. 4. An oil baffle structure according to claim 3, wherein the second side of the baffle (10) further comprises a wind-shielding structure (13), and the wind-shielding structure (13) is connected with the balance weight (12) and encloses an arc-shaped cavity.
  5. 5. The oil baffle structure according to claim 4, wherein the wind-shielding structure (13) is provided with an oil discharge hole (131), and the oil discharge hole (131) is communicated with the arc-shaped cavity.
  6. 6. The oil retaining structure according to claim 5, characterized in that the two ends of the arc-shaped balancing block (12) are respectively a windward side (121) and a leeward side (122), and the oil discharge hole (131) is arranged at one end of the wind-shielding structure (13) close to the windward side (121).
  7. 7. An oil baffle structure according to any one of claims 1 to 6, characterized in that the minimum thickness T of the baffle (10) satisfies the relation T being ≡0.8mm.
  8. 8. An electric motor comprising the oil shielding structure according to any one of claims 1 to 7 and a rotor assembly, the oil shielding structure being fixedly connected to an end face in an axial direction of the rotor assembly.
  9. 9. The motor of claim 8, wherein the rotor assembly comprises a rotor body (20) and a crankshaft, the rotor body (20) is provided with a shaft hole (21) and a plurality of magnetic steel grooves (22), the crankshaft is arranged in the shaft hole (21) in a penetrating manner and the oil blocking structures, magnetic steel (221) are embedded in each magnetic steel groove (22), raised strips (11) on the oil blocking structures are abutted to the magnetic steel (221), and the quantity Q 1 of the raised strips (11) and the quantity Q 2 of the magnetic steel grooves (22) meet the relation Q 1 ≥Q 2 .
  10. 10. The motor of claim 9, wherein the rotor body (20) is further provided with a rotor flow hole (23), and when the oil blocking structure is connected to the rotor assembly, an outer end flow area S 1 and an inner end flow area S 2 formed by surrounding the ribs (11) of the oil blocking structure, the baffle (10) and the end face of the rotor body (20) and an area S 3 of the rotor flow hole (23) satisfy a relation S 1 ＞S 2 ＞S 3 .
  11. 11. The electric machine according to claim 10, characterized in that the minimum distance L 1 between the ribs (11) of the oil barrier structure and the center of the through hole (101) of the baffle (10) and the maximum distance L 2 between the rotor flow hole (23) and the center of the through hole (101) satisfy the relation L 1 ＞L 2 .
  12. 12. A compressor comprising the motor of any one of claims 8 to 11.

Description

Oil blocking structure, motor and compressor Technical Field The invention relates to the technical field of refrigeration equipment, in particular to an oil blocking structure, a motor and a compressor. Background The compressor, as a core component of the refrigeration equipment, generally includes a closed casing, a pump body assembly, a motor assembly, a gas-liquid separator, an air suction pipe, and an air discharge pipe. Wherein, the motor assembly comprises a stator and a rotor assembly. When the compressor runs, the rotor assembly rotates in the stator, and the crankshaft in the pump body assembly drives the piston to make eccentric motion in the cylinder, so that low-pressure cold gas enters the cylinder for compression through the air suction pipe, and high-pressure cold gas is output to the heat exchange system through the exhaust pipe. Lubricating oil is stored in the bottom of the closed shell of the compressor, and in the operation process of the compressor, the lubricating oil in the compressor inevitably enters a refrigeration pipeline to participate in refrigeration cycle, excessive lubricating oil accumulation in a refrigeration system can influence heat exchange, and meanwhile, the oil shortage in the compressor can influence the reliability of the compressor. In the prior art, especially for high-speed large-displacement compressors, the oil discharge rate is higher, and an oil baffle is usually arranged on a rotor baffle or a balance weight to reduce the oil discharge rate, but the rotor baffle, the balance weight and the oil baffle are complex to assemble. Disclosure of Invention The invention aims to provide an oil baffle structure, a motor and a compressor, and at least solves the problems that a high-rotation-speed large-displacement compressor is high in oil discharge rate and a rotor baffle, an oil baffle and a balancing weight on the compressor are complex in assembly in the prior art. According to an aspect of the present invention, there is provided an oil blocking structure including: The baffle, the first side integrated into one piece of baffle is provided with boss portion, the second side integrated into one piece that baffle and first side are relative is provided with balancing portion. Further, the baffle is of a circular plate-shaped structure, the boss portion comprises a plurality of raised strips, the raised strips extend for a predetermined length along the inner periphery of the baffle, and the raised strips are obliquely arranged along the clockwise direction or the anticlockwise direction. Further, the baffle is circular plate-shaped structure, the balancing part comprises an arc-shaped balancing block, and the outer peripheral side of the arc-shaped balancing block is flush with the outer peripheral side of the circular plate-shaped structure. Further, the second side of the baffle plate further comprises a wind-shielding structure, and the wind-shielding structure is connected with the balance weight and surrounds the balance weight to form an arc-shaped cavity. Further, the wind-shielding structure is provided with an oil discharging hole which is communicated with the arc-shaped cavity. Further, two ends of the arc-shaped balancing block respectively comprise a windward side and a leeward side, and the oil discharge hole is formed in one end, close to the windward side, of the wind-avoiding structure. Further, the minimum thickness T of the baffle plate meets the relation that T is more than or equal to 0.8mm. On the other hand, the invention also provides a motor which comprises the oil blocking structure and the rotor assembly, wherein the oil blocking structure is fixedly connected to the end face of the rotor assembly in the axial direction. Further, the rotor assembly comprises a rotor body and a crankshaft, wherein the rotor body is provided with a shaft hole and a plurality of magnetic steel grooves, the crankshaft penetrates through the shaft hole and the oil retaining structures, magnetic steel is embedded in each magnetic steel groove, protruding strips on the oil retaining structures are abutted to the magnetic steel, and the number Q 1 of the protruding strips and the number Q 2 of the magnetic steel grooves meet the relation Q 1≥Q2. Further, after the oil blocking structure is connected with the rotor assembly, a rotor flow hole is further formed in the rotor body, and after the oil blocking structure is connected with the rotor assembly, a relation S 1＞S2＞S3 is formed by surrounding an outer end flow area S 1, an inner end flow area S 2 and an area S 3 of the rotor flow hole between the protruding strips of the oil blocking structure, the baffle and the end face of the rotor body. Further, the minimum distance L 1 between the convex strips of the oil baffle structure and the center of the through hole and the maximum distance L 2 between the rotor flow through hole and the center of the through hole satisfy the relation L 1＞L2. On the other han