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Upper bearing structure in rotary compressor

A rotary compressor and rotary shaft technology, which is applied in the direction of rotary piston machines, rotary piston pumps, rotary piston/swing piston pump components, etc., can solve the impact of compressor noise performance and the force exerted by the upper bearing Large and other problems, to achieve the effect of reducing noise and small deformation

Inactive Publication Date: 2007-05-23
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The connection structure between the upper bearing and the shell of the prior art rotary compressor is when the compressor is assembled by the shrink-fit method, as shown in Fig. The weakest part, the compressor shell exerts a large force on the upper bearing. Most of the current upper bearing structure will be transmitted to the weakest part of the upper bearing - the valve groove after receiving the clamping force of the shell. The deformation of the bearing is too large, causing the problem of affecting the noise performance of the compressor

Method used

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  • Upper bearing structure in rotary compressor
  • Upper bearing structure in rotary compressor
  • Upper bearing structure in rotary compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]Embodiment 1: Cut off the material of the lower part of the outer ring 23 of the upper bearing 32, so that the lower part of the upper bearing 32 forms the L part of the outer ring. The height of the cut is below the height of the inner ring 26. It is known that the included angle between the valve plate fixing bolt hole 31 and the valve plate grooved hole 29 is α, outside the range of the included angle α, or outside the range of 0.5α on both sides of the center of this angle α, or on both sides of half of the range of 0.5α On the circumference of the outer ring 23, a thickness is consistent with the outer ring 23, and the height is an outer ring boss 23' of L', and an outer ring protrusion of the same size is set on the circumference of the other side of the valve groove 28. There are more than 3 sets of platforms 23' and outer ring bosses 23', the height of the outer ring 23=L+2L, 2L>L'>L. The outer ring boss 23' added on the upper bearing 32 is used as a special shri...

Embodiment 2

[0036] Embodiment 2: Cut off the material of the lower part of the outer ring 23 of the upper bearing 32, so that the lower part of the upper bearing 32 forms the L part of the outer ring. The height of the cut is below the height of the inner ring 26. It is known that the included angle between the valve plate fixing bolt hole 31 and the valve plate grooved hole 29 is α, and the angle is outside the range of α or the outside of the range of 0.5α on both sides of the center of the angle α or the two sides of the half of the range of 0.5α. On the periphery of the outer ring 23, a thickness consistent with that of the outer ring 23 is set, and the outer ring boss (not shown) with a height of L' is provided along the circumferential direction. The height of the outer ring 23=L+2L, 2L> L'>L, the outer ring boss added on the upper bearing 32 is used as a special shrink-fitting position, which will reduce the force directly applied to the valve plate groove, so the deformation is ver...

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Abstract

The rotary compressor for air conditioners comprises a housing, a electric section made by the stator fastened on the housing and the rotor rotating inside the stator, the rotating shaft combined in the rotor center, up and down bearings supporting the other end of the rotating shaft, cylinder in a ring and fastened inside the housing, with the up and down bearings covering the top and bottom of the cylinder to form an inner space, and the compression mechanism formed by the ring rolling pistons installed above the eccentric section of the rotating shaft inside the cylinder. One end of the cylinder connects with the air intake pipe. The up bearing is an iron cast integral part made of outside ring, breather, shaft hole, inner ring, bolt hole, valve groove, valve groove hole, cross brace and valve fastening bolt. It features in the numerous out ring bosses on the outside ring of the up bearing with the aim of reducing noises of the compressor.

Description

technical field [0001] The invention belongs to the field of rotary compressors for air conditioners, and in particular relates to an upper bearing structure of a rotary compressor in which an upper bearing is fixedly connected to a housing by a stamping method. Background technique [0002] Generally speaking, a compressor is a part of a refrigeration cycle device, and it is a device that pressurizes a refrigerant to make the pressure and temperature of the refrigerant suitable for a specific purpose. The refrigeration cycle device consists of a compressor, a condenser, an expansion device, and an evaporator, and all components are connected to each other to form a closed circulation system. [0003] This refrigeration cycle device compresses the low-temperature and low-pressure refrigerant gas sucked into the compressor, and discharges it in a high-temperature and high-pressure state. When the discharged refrigerant gas passes through the condenser, it releases latent heat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/00F04C18/00
Inventor 张久楠
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD