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CN-121993408-A - Pump body structure, fluid machinery and heat exchange equipment

CN121993408ACN 121993408 ACN121993408 ACN 121993408ACN-121993408-A

Abstract

The invention provides a pump body structure, a fluid machine and heat exchange equipment, wherein the pump body structure comprises a shell, a first air cylinder, a second air cylinder and an elastic component, the first air cylinder and the second air cylinder are arranged in the shell, the volume V 2 of the first air cylinder is smaller than or equal to 80% of the volume V 1 of the second air cylinder, the elastic component comprises a first elastic piece and a limiting piece, the limiting piece is fixedly arranged in the shell and is arranged at intervals with the inner wall surface of the shell, and the first elastic piece is abutted between the first air cylinder and the limiting piece. The pump body structure provided by the invention adopts the limiting piece structure to be matched with the first elastic piece to realize the fixed limiting of the first elastic piece, the first limiting piece can be fixed without the help of the inner wall of the shell, the fixed structure of the first elastic piece is simplified, and the problem that the pump body spring in the multi-cylinder compressor in the prior art is inconvenient to install can be solved.

Inventors

  • SU YONGQIANG
  • FU ZHENG
  • YAN WEIHAO
  • REN LIPING

Assignees

  • 珠海格力电器股份有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (16)

  1. 1. A pump body structure, comprising: A housing (10); a first cylinder (20) and a second cylinder (30) disposed inside the housing (10), wherein the volume V2 of the first cylinder (20) is 80% or less of the volume V1 of the second cylinder (30); The elastic assembly comprises a first elastic piece (40) and a limiting piece (100), wherein the limiting piece (100) is fixedly arranged inside the shell (10), and the first elastic piece (40) is abutted between the first air cylinder (20) and the limiting piece (100).
  2. 2. Pump body structure according to claim 1, characterized in that the first cylinder (20) has a mounting hole (231) for mounting the first elastic member (40), the stopper (100) has a stopper portion abutting against an end portion of the first elastic member (40) for restricting the end portion from being kept inside the mounting hole (231).
  3. 3. Pump body structure according to claim 2, characterized in that it further comprises a first bearing (70) and a second bearing (80) arranged inside the housing (10), said first bearing (70) and said second bearing (80) cooperating to form an installation space, at least one of said second cylinders (30) being arranged inside said installation space, said first cylinder (20) being arranged outside said installation space, a portion of said first cylinder (20) being in abutment with said first bearing (70) or with said second bearing (80).
  4. 4. A pump body structure according to claim 3, characterized in that the limiting member (100) has a first plate section (110) and a second plate section (120) which are provided in a bent arrangement, the first plate section (110) being fixedly connected with the first bearing (70) or the second bearing (80), the second plate section (120) at least partially forming the limiting portion, the limiting portion shielding the mounting hole (231).
  5. 5. The pump body structure of claim 4, wherein, The first plate section (110) is clamped with the first bearing (70) or the second bearing (80) or fixedly connected with the first plate section through a fastener, and/or The first plate section (110) and the second plate section (120) are arranged vertically.
  6. 6. A pump body structure according to claim 3, characterized in that the first bearing (70) and the second bearing (80) are arranged at intervals in the height direction of the housing (10), the pump body structure further comprising a cover plate (90) arranged inside the housing (10), the cover plate (90) being located outside the installation space, the first cylinder (20) being arranged between the cover plate (90) and the first bearing (70) or the second bearing (80).
  7. 7. The pump body structure according to claim 6, wherein the stopper (100) is fixedly connected with the cover plate (90), the stopper (100) has a shielding portion shielding the mounting hole (231), and the shielding portion is the stopper.
  8. 8. Pump body structure according to claim 2, characterized in that at least a part of the limit portion is fixedly arranged inside the mounting hole (231), and the limit portion located inside the mounting hole (231) abuts against the first elastic member (40).
  9. 9. The pump body structure of claim 8, wherein, The limit part can elastically deform, the outer wall surface of the limit part is in interference fit with the inner wall surface of the mounting hole (231), or The limiting part is in threaded rotation connection with the mounting hole (231).
  10. 10. Pump body structure according to any one of claims 1 to 9, characterized in that the first cylinder (20) comprises: A first cylinder (230), wherein a mounting hole (231) is formed in the first cylinder (230), and at least a part of the first elastic member (40) is arranged inside the mounting hole (231); A first roller (210), the first roller (210) being movably disposed inside the first cylinder (230); The first sliding piece (220), one end of the first sliding piece (220) is in butt joint with the first roller (210), the other end of the first sliding piece (220) is in butt joint with the first end of the first elastic piece (40), and the second end of the first elastic piece (40) is in butt joint with the limiting piece (100).
  11. 11. Pump body structure according to any one of claims 1 to 9, characterized in that it further comprises a crankshaft (60), The crankshaft (60) has a first eccentric portion (610) provided inside the first cylinder (20), and a second eccentric portion (620) provided inside the second cylinder (30), and the eccentric direction of the first eccentric portion (610) is different from the eccentric direction of the second eccentric portion (620).
  12. 12. Pump body structure according to claim 11, characterized in that the first eccentric portion (610) is located at an axial end of the crankshaft (60).
  13. 13. The pump body structure of claim 11, wherein an outer periphery of the first eccentric portion (610) does not exceed an outer periphery of a main body portion (630) of the crankshaft (60).
  14. 14. Pump body structure according to any one of claims 1 to 9, characterized in that the elastic assembly further comprises a second elastic member (50), the second elastic member (50) being arranged between the second cylinder (30) and the inner wall surface of the housing (10), the second elastic member (50) having a length greater than the length of the first elastic member (40).
  15. 15. A fluid machine comprising a pump body structure according to any one of claims 1 to 14.
  16. 16. A heat exchange device comprising the fluid machine of claim 15.

Description

Pump body structure, fluid machinery and heat exchange equipment Technical Field The invention relates to the technical field related to mechanical equipment, in particular to a pump body structure, fluid machinery and heat exchange equipment. Background The rotor compressor is widely applied to different equipment as one of the compressors, wherein the action of a sliding vane tail spring in the rotor compressor is two, namely, the forward acting force is given to the sliding vane, so that the head of the sliding vane is always abutted against the outer circle of a roller in the working process of the compressor, gas series flow in a high-pressure cavity and a low-pressure cavity of a cylinder caused by the fact that the sliding vane is separated from the outer circle of the roller is avoided, and the problem of abnormal impact sound and the reliability of sliding vane impact caused by the fact that the sliding vane impacts a bottom hole of a sliding vane groove in the process of retreating is avoided. The conventional method for installing the pump body spring of the compressor is generally that the small diameter end is abutted with the tail part of the sliding vane, and the large diameter end is abutted on the inner wall surface of the shell of the compressor, but the installation structure is not suitable for all compressor pump bodies, especially for the compressor pump bodies with multi-cylinder small cylinder structure, the conventional method for installing the pump body spring cannot meet the small cylinders, and forced application only causes the uncoordinated structure of the pump body parts, so that the reliability is poor and other problems are caused. From the above, the pump body spring in the multi-cylinder compressor in the prior art has the problem of inconvenient installation. Disclosure of Invention The invention mainly aims to provide a pump body structure, a fluid machine and heat exchange equipment, so as to solve the problem that a pump body spring in a multi-cylinder compressor in the prior art is inconvenient to install. In order to achieve the above object, according to one aspect of the present invention, there is provided a pump body structure including a housing, a first cylinder, a second cylinder, and an elastic member, the first cylinder and the second cylinder being disposed inside the housing, a volume V 2 of the first cylinder being equal to or less than 80% of a volume V 1 of the second cylinder, the elastic member including a first elastic member and a stopper fixedly disposed inside the housing, the first elastic member being abutted between the first cylinder and the stopper. Further, the first cylinder is provided with a mounting hole for mounting the first elastic piece, and the limiting piece is provided with a limiting part which is abutted with the end part of the first elastic piece so as to be used for limiting the end part to be kept in the mounting hole. Further, the pump body structure further comprises a first bearing and a second bearing which are arranged in the shell, the first bearing and the second bearing are matched to form an installation space, at least one second cylinder is arranged in the installation space, the first cylinder is arranged outside the installation space, and part of the first cylinder is abutted to the first bearing or the second bearing. Further, the limiting piece is provided with a first plate section and a second plate section which are bent, the first plate section is fixedly connected with the first bearing or the second bearing, the second plate section at least partially forms a limiting part, and the limiting part shields the mounting hole. Further, the first plate section is clamped with the first bearing or the second bearing or fixedly connected through a fastener, and/or the first plate section and the second plate section are vertically arranged. Further, the first bearing and the second bearing are arranged at intervals along the height direction of the shell, the pump body structure further comprises a cover plate arranged in the shell, the cover plate is located outside the installation space, and the first cylinder is arranged between the cover plate and the first bearing or the second bearing. Further, the limiting piece is fixedly connected with the cover plate, the limiting piece is provided with a shielding part for shielding the mounting hole, and the shielding part is a limiting part. Further, at least a portion of the limiting portion is fixedly arranged in the mounting hole, and the limiting portion located in the mounting hole abuts against the first elastic piece. Further, the limiting part can elastically deform, the outer wall surface of the limiting part is in interference fit with the inner wall surface of the mounting hole, or the limiting part is in threaded rotation connection with the mounting hole. Further, the first cylinder comprises a first cylinder body, a first roller and a first sliding