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CN-122014564-A - Support structure for reducing height of compressor and compressor

CN122014564ACN 122014564 ACN122014564 ACN 122014564ACN-122014564-A

Abstract

The invention discloses a supporting structure for reducing the height of a compressor and the compressor, wherein the supporting structure comprises a stator, the stator is provided with a mounting surface for mounting a stator screw, and the mounting surface is arranged in a sinking manner relative to the end surface of the stator on the same side; the sunk mounting surface is matched with one end of an elastic supporting piece, and the other end of the elastic supporting piece is matched and connected with a supporting part of the compressor. According to the invention, the mounting surface of the stator is designed into a sinking structure, and the conical pressure spring with the small head and the large bottom is adopted to be matched with the stator, so that the mounting base point of the supporting system is reduced, the axial rigidity distribution of the pressure spring is more reasonable, the instability resistance is obviously enhanced, the head of the pressure spring is compactly matched with the sinking concave, and the comprehensive optimization goal of effectively reducing the overall height of the compressor in a limited space and avoiding influencing the electromagnetic efficiency of a motor due to structural change is achieved. In addition, the compressor adopts a concave structure in combination with the silencing cover, so that the overall height of the compressor can be reduced by 20-30mm.

Inventors

  • YANG BAICHANG
  • HUANG HE
  • XIONG WEI
  • HONG PING
  • LIU MENG

Assignees

  • 黄石东贝压缩机有限公司
  • 芜湖欧宝机电有限公司

Dates

Publication Date
20260512
Application Date
20260226

Claims (10)

  1. 1. The supporting structure for reducing the height of the compressor is characterized by comprising a stator (1), wherein the stator (1) is provided with a mounting surface (3) for mounting a stator screw (2), the mounting surface (3) is sunk relative to the end surface of the stator on the same side, the sunk mounting surface (3) is matched with one end of an elastic supporting piece, and the other end of the elastic supporting piece is matched and connected with a supporting part of the compressor.
  2. 2. The compressor height reduction support structure of claim 1, wherein the mounting surface is a concave surface, and the distance between the concave surface and the stator end surface is 10 mm-20 mm.
  3. 3. Support structure for reducing the height of a compressor according to claim 1, characterized in that said elastic support is a conical compression spring (4), the outer diameter of said conical compression spring (4) varying axially.
  4. 4. A support structure for reducing the height of a compressor according to claim 3, characterized in that said conical compression spring (4) comprises a head and grip ring, a bottom and grip ring and an intermediate free ring located therebetween, the outer diameter of said head and grip ring being smaller than the outer diameter of said bottom and grip ring.
  5. 5. The compressor height reducing support structure of claim 4, wherein said intermediate free ring has a tapered configuration with a uniformly varying taper angle such that said intermediate free ring can nest layer by layer when compressed.
  6. 6. The supporting structure for reducing the height of a compressor according to claim 4, comprising a stator screw cap (5) and a supporting block (6), wherein the stator screw (2) is fixed on the mounting surface (3) through the stator screw cap (5), the bottom and tightening ring of the conical pressure spring (4) is contacted with the supporting block (6), and the head and tightening ring of the conical pressure spring (4) is contacted with the stator screw cap (5) to limit the compression stroke of the elastic supporting piece.
  7. 7. Support structure for reducing the height of a compressor according to claim 6, characterized in that the support block (6) is fixedly connected with the compressor housing.
  8. 8. The supporting structure for reducing the height of the compressor according to claim 6, wherein the outer parts of the stator screw cap (5) and the supporting block (6) are sleeved with the conical pressure spring (4).
  9. 9. Support structure for reducing the height of a compressor according to claim 6, characterized in that the stator screw cap (5) is an interference fit with the stator screw (2).
  10. 10. A compressor, characterized in that a support structure for reducing the height of the compressor according to any one of claims 1 to 9 is used, and further comprises a discharge silencing cover (801), the middle part of which is concave, the discharge silencing cover is fixed with a discharge silencing cavity through a silencing cover screw (802), the silencing cover screw (802) is located at the center of the concave, and the outer end surface of the silencing cover screw (802) is located inside the outer end surface of the discharge silencing cover body.

Description

Support structure for reducing height of compressor and compressor Technical Field The invention relates to the technical field of compressors, in particular to a supporting structure for reducing the height of a compressor and the compressor. Background The compressor is used as a key device for converting mechanical energy into gas pressure energy, and the compactness, the running stability and the vibration noise control are important indexes for measuring the design level. The supporting structure of the compressor, in particular the elastic connection and the limiting system between the motor stator and the shell, directly relates to the height dimension of the whole machine, the shock resistance in the transportation process and the vibration and noise performance in the operation. In conventional compressor designs, the motor stator is typically secured by a stator screw, and the head of the stator screw or a mating screw cap, a support block below, and a cylindrical compression spring (i.e., a compression spring of uniform internal diameter) together form a support and limit system. The typical design concept of the system is that the pressure spring provides elastic support to isolate vibration, a certain minimum gap is kept between the stator screw cap and the support block, the displacement margin of the vibration of the core is used as the displacement margin when the compressor operates, and the hard limit is realized through contact during transportation, so that excessive impact is prevented. However, this conventional support structure design has several inherent disadvantages that limit further optimization of the compressor: 1. When the large-torque compressor is started and stopped, the inner diameter pressure springs such as the whole body and the like possibly cause overlarge deformation due to insufficient rigidity, distortion and lateral bending, so that the movement impacts the shell, and noise is caused. 2. The stator screw cap is arranged on the stator screw in an interference mode, the stator screw directly acts on the stator, and the part of the stator surface of the contact part of the stator screw and the stator is in the same plane with the rest stator surfaces, so that the supporting height cannot be reduced. 3. The equal-inner-diameter pressure spring ensures rigidity, and ensures that the diameter of the pressure spring is larger or the inner diameter of the pressure spring is larger as much as possible in design, and when the diameter and the inner diameter of the pressure spring are increased, the mounting surface of the stator screw cannot be designed into a concave shape, so that the magnetic circuit of a motor is influenced by the overlarge concave shape of the stator, and the efficiency of the motor is reduced. In summary, the compressor support structure in the prior art faces challenges in pursuing multi-objective collaborative optimization such as lower overall height, higher operation stability and better electromagnetic efficiency. An innovative support structure solution is needed that can provide high rigidity and high stability in a limited space while allowing the mounting base to sink to reduce the overall height without affecting the electromagnetic performance of the motor core components. Disclosure of Invention In view of the above-mentioned technical problems in the related art, the present invention provides a supporting structure for reducing the height of a compressor and a compressor, which can overcome the above-mentioned drawbacks of the prior art. In order to achieve the technical purpose, the technical scheme of the invention is realized as follows: The supporting structure for reducing the height of the compressor comprises a stator, wherein the stator is provided with a mounting surface for mounting a stator screw, the mounting surface is sunken relative to the end surface of the stator on the same side, the sunken mounting surface is matched with one end of an elastic supporting piece, and the other end of the elastic supporting piece is matched and connected with a supporting part of the compressor. Further, the mounting surface is a concave surface, and the distance between the concave surface and the end surface of the stator is 10 mm-20 mm. Further, the elastic support piece is a conical pressure spring, and the outer diameter of the conical pressure spring changes along the axial direction. Further, the conical pressure spring comprises a head part closing ring, a bottom part closing ring and a middle free ring positioned between the head part closing ring and the bottom part closing ring, and the outer diameter of the head part closing ring is smaller than that of the bottom part closing ring. Further, the middle free ring is in a conical structure with a uniformly-changed conical angle, so that the middle free ring can be nested layer by layer when being pressed. The stator screw is fixed on the mounting surface through the stator scre