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CN-121993411-A - Air supplementing structure and compressor

CN121993411ACN 121993411 ACN121993411 ACN 121993411ACN-121993411-A

Abstract

The invention relates to the technical field of compressors, in particular to an air supplementing structure and a compressor. The air supplementing structure comprises an upper cylinder cover, a lower cylinder cover, an air supplementing liquid storage device, a plurality of middle plates, a plurality of cylinders and a plurality of pistons, wherein the middle plates are packaged between two adjacent cylinders, the cylinders are packaged between the upper cylinder cover and the lower cylinder cover, the pistons are arranged in one-to-one correspondence with the cylinders, the pistons are rotatably arranged in the cylinders, at least one of the upper cylinder cover, the lower cylinder cover and the plurality of middle plates is provided with air supplementing holes, the air supplementing holes are communicated with the cylinders and the air supplementing liquid storage device, and the air supplementing holes are round holes or arc holes. The air supplementing structure limits the radius of the air supplementing holes according to different required air supplementing amounts, when the required air supplementing amounts are smaller, the air supplementing holes are circular holes, when the required air supplementing amounts are larger, the air supplementing holes are arc holes, the two sides of the side face are expanded under the condition that the diameter of the circular holes is not changed, the area of the air supplementing holes is increased, the increase of the air supplementing amounts is realized, the tightness of the air supplementing structure is ensured, and the air leakage is prevented.

Inventors

  • ZHOU XUAN
  • LOU HAILIN
  • Wang Zimiao

Assignees

  • 南昌海立电器有限公司
  • 上海海立电器有限公司

Dates

Publication Date
20260508
Application Date
20260331

Claims (10)

  1. 1. A gas supplementing structure is characterized by comprising an upper cylinder cover (1), a lower cylinder cover (2), a gas supplementing liquid storage device (3), a plurality of middle plates (4), a plurality of air cylinders (5) and a plurality of pistons (6), wherein the middle plates (4) are packaged between two adjacent air cylinders (5), the air cylinders (5) are packaged between the upper cylinder cover (1) and the lower cylinder cover (2), the pistons (6) are arranged in a one-to-one correspondence manner with the air cylinders (5), the pistons (6) are rotatably arranged in the air cylinders (5), at least one of the upper cylinder cover (1), the lower cylinder cover (2) and the middle plates (4) is provided with gas supplementing holes (7), the gas supplementing holes (7) are communicated with the air cylinders (5) and the gas supplementing liquid storage device (3), the gas supplementing holes (7) are round holes, the radius of the gas supplementing holes (7) is r, Or the air-filling hole (7) is an arc-shaped hole, the radius of the air-filling hole (7) is r, wherein, D is the inner diameter of the cylinder (5), D is the outer diameter of the piston (6), H is the height of the cylinder (5), N is the number of the cylinders (5), R is the distance between the circle center of the air compensating hole (7) and the circle center of the corresponding upper cylinder cover (1), lower cylinder cover (2) or middle plate (4), and 2α is the circle center angle of the air compensating hole (7).
  2. 2. An air compensating structure according to claim 1, wherein the air compensating holes (7) are circular holes when n=1 and the displacement is 8cc-14cc, wherein, 。
  3. 3. An air supplementing structure according to claim 1, wherein the air supplementing holes (7) are arc-shaped holes when the displacement is 14cc-18cc when n=1, wherein, 。
  4. 4. An air compensating structure according to claim 1, wherein the air compensating holes (7) are circular holes when n=2 and the displacement is 9cc-15cc, wherein, 。
  5. 5. An air supplementing structure according to claim 1, wherein the air supplementing holes (7) are arc-shaped holes when n=2 and the displacement is 15cc-25cc, wherein, 。
  6. 6. An air supplementing structure according to claim 1, wherein the air supplementing holes (7) are arc-shaped holes when n=2 and the displacement is 25cc-36cc, wherein, 。
  7. 7. An air compensating structure according to any of claims 1-6, characterized in that the shortest distance between the wall of the air compensating hole (7) and the inner wall of the corresponding piston (6) is L, wherein L is not less than 0mm.
  8. 8. A gas-supplementing structure according to any one of claims 1-6, wherein the gas-supplementing structure further comprises a crankshaft (8), wherein the crankshaft (8) is arranged through the upper cylinder cover (1) and the lower cylinder cover (2), and wherein the piston (6) is arranged around the crankshaft (8).
  9. 9. A gas-filling structure according to any one of claims 1-6, characterized in that the gas-filling structure further comprises a gas-filling reservoir (9), the gas-filling reservoir (9) being in communication with a number of the cylinders (5).
  10. 10. Compressor, comprising a housing (10), characterized in that it further comprises a gas-supplementing structure according to any one of claims 1-9, said upper cylinder cover (1), said lower cylinder cover (2), said plurality of intermediate plates (4), said plurality of cylinders (5) and said plurality of pistons (6) are all arranged in said housing (10), said gas-supplementing liquid-storing means are connected to the outer wall of said housing (10), and the gas-supplementing ends of said gas-supplementing liquid-storing means are connected to said gas-supplementing holes (7) through said housing (10).

Description

Air supplementing structure and compressor Technical Field The invention relates to the technical field of compressors, in particular to an air supplementing structure and a compressor. Background In the refrigeration/heating cycle, a compressor is a device that lifts a low-pressure refrigerant into a high-pressure refrigerant. The working principle of the traditional rotary compressor is that a motor directly drives a crankshaft to rotate, and the crankshaft drives an eccentric piston to rotate in a compression cavity of a cylinder to cause the change of the volume of the compression cavity, so that the suction-compression-exhaust process is completed, and the compression of a refrigerant is realized. With the progress of technology, the requirement of users on the energy efficiency of the air conditioner is higher and higher, the air-supplementing and enthalpy-increasing technology can enable the air conditioner to keep high capacity and high energy efficiency level in various environments, the compressor is used as a core component of the air conditioner, and the improvement of the air-supplementing and enthalpy-increasing technology becomes a main index. For a single-cylinder compressor, a double-cylinder compressor or a multi-cylinder compressor, in order to improve the performance of the compressor, a gas supplementing port is usually added to the traditional compressor through a gas supplementing enthalpy increasing technology, and the performance is improved in an intermediate gas supplementing mode in the working process of the compressor. However, in general, the high-energy efficiency compressor has a large eccentric amount, which results in a thin piston thickness and insufficient sealing distance, and in the air supplementing process, the diameter of the air supplementing hole is limited due to the limitation of the pump body structure, the air leakage can be caused by the overlarge diameter of the air supplementing hole, the air supplementing quantity is insufficient due to the overlarge diameter of the air supplementing hole, and the performance of the compressor is reduced. Therefore, there is a need for an air-supplementing structure and a compressor to solve the above-mentioned problems. Disclosure of Invention The invention aims to provide an air supplementing structure and a compressor, which can improve the tightness of the air supplementing structure and improve the air supplementing quantity. To achieve the purpose, the invention adopts the following technical scheme: The air supplementing structure comprises an upper cylinder cover, a lower cylinder cover, an air supplementing reservoir, a plurality of middle plates, a plurality of air cylinders and a plurality of pistons, wherein the middle plates are packaged between two adjacent air cylinders, the air cylinders are packaged between the upper cylinder cover and the lower cylinder cover, the pistons are arranged in a one-to-one correspondence manner with the air cylinders, the pistons are rotatably arranged in the air cylinders, at least one of the upper cylinder cover, the lower cylinder cover and the middle plates is provided with air supplementing holes, the air supplementing holes are communicated with the air cylinders and the air supplementing reservoir, the air supplementing holes are round holes, the radius of the air supplementing holes is r, Or the air-filling hole is an arc-shaped hole, the radius of the air-filling hole is r, wherein,D is the inner diameter of the cylinder, D is the outer diameter of the piston, H is the height of the cylinder, N is the number of the cylinders, R is the distance between the circle center of the air compensating hole and the circle center of the corresponding upper cylinder cover, lower cylinder cover or middle plate, and 2α is the central angle of the air compensating hole. As a preferable technical scheme of the above-mentioned air supplementing structure, when n=1 and the displacement is 8cc-14cc, the air supplementing hole is a circular hole, wherein,。 As a preferable technical scheme of the above-mentioned air supplementing structure, when n=1 and the displacement is 14cc-18cc, the air supplementing hole is an arc hole, wherein,。 As a preferable technical scheme of the above-mentioned air supplementing structure, when n=2 and the displacement is 9cc-15cc, the air supplementing hole is a circular hole, wherein,。 As a preferable technical scheme of the above-mentioned air supplementing structure, when n=2 and the displacement is 15cc-25cc, the air supplementing hole is an arc hole, wherein,。 As a preferable technical scheme of the above-mentioned air supplementing structure, when n=2 and the displacement is 25cc-36cc, the air supplementing hole is an arc hole, wherein,。 As a preferable technical scheme of the air supplementing structure, the shortest distance between the hole wall of the air supplementing hole and the inner wall corresponding to the piston is L, wherein L is more than