CN202348668U

CN202348668U - Vortex compressor

Info

Publication number: CN202348668U
Application number: CN2011204644103U
Authority: CN
Inventors: 黄志刚; 许世璋
Original assignee: Anhui Meizhi Compressor Co Ltd
Current assignee: Anhui Meizhi Compressor Co Ltd
Priority date: 2011-11-22
Filing date: 2011-11-22
Publication date: 2012-07-25
Anticipated expiration: 2021-11-22

Abstract

The utility model discloses a vortex compressor. According to the vortex compressor, a radial oil return hole is formed in a machine frame; a first oil return clapboard and a second annular stepped oil return clapboard are sleeved outside the machine frame sequentially; the first oil return clapboard consists of an annular groove shell sleeved outside the machine frame and an annular clapboard connected to the bottom surface of the annular groove shell; the inner wall of the annular groove shell is connected with the outer wall of the machine frame below the radial oil return hole to form an annular oil return tank; an oil return channel is formed between the first oil return clapboard and the second oil return clapboard; the top end of the annular groove shell of the first oil return clapboard is lower than that of the second oil return clapboard; and the oil return channel is positioned above a gap formed between a stator iron core of an electric motor and a rotor of the electric motor. According to the vortex compressor, the new oil return channel is formed by the arrangement of the clapboards, so that the problem that because an avoiding groove structure is formed on the stator iron core in the conventional oil return device, the motor efficiency of the compressor is reduced is solved; and the reduction of noise is facilitated, and the vortex compressor has a simple structure and is convenient to assemble, so that assembly difficulty of the compressor is reduced.

Description

A kind of scroll compressor

Technical field

The utility model relates to the scroll compressor field, specifically is a kind of scroll compressor that is provided with drainback passage.

Background technique

The stream of the refrigeration oil in the existing scroll compressor is: earlier in the refrigeration oil suction crankshaft oil hole from the oil sump of scroll compressor bottom; Refrigeration oil gets into moving scroll and decides in the compression chamber between the scroll through frame oil nest then; But the refrigeration oil oil mass in the compression chamber can not be too much; Must control, therefore a part of refrigeration oil is got back to compressor bottom oil sump through radially spill port in the frame and oil return apparatus.Existing oil return apparatus is the drainback passage that forms between groove and the inner walls of dodging that is arranged on the electric motor stator iron core, dodges the structure of groove and be provided with on the electric motor stator, has influenced the electronic efficient of motor, and then has had influence on the efficient of whole compressor.Simultaneously this kind drainback passage length is longer, passes stator iron core again, in the assembly process of compressor easily and stator iron core or compressor housing interfere, influence assembly precision.In the compressor operation process, original oil return apparatus contacts with compressor housing and causes inner different sound easily.

The model utility content

The technical problem that the utility model will solve provides a kind of scroll compressor that is provided with drainback passage; Solving existing scroll compressor drainback passage influences scroll compressor electric efficiency and the problem that is prone to cause the inner different sound of compressor, has reduced the difficulty in the compressor assembly process simultaneously.

The technological scheme of the utility model is:

A kind of scroll compressor; Comprise housing; Be arranged at bent axle in the housing, be arranged at the bent axle bottom the electric motor rotor, be set in the outer electric motor stator iron core of electric motor rotor, be arranged at the bent axle top moving scroll, be arranged at moving scroll top and the intermeshing fixed scroll of moving scroll and be arranged on the bent axle and be positioned at the frame of moving scroll below; Described frame is provided with radially spill port; It is characterized in that: described frame is set with the second oil return dividing plate of the first oil return dividing plate and ladder annular outward successively; The first oil return dividing plate is formed with the toroidal membrane that is connected in annular pot shell bottom surface by being set in the outer annular pot shell of frame; The inwall of annular pot shell is connected to form annular oil return oil sump with the frame outer wall of the below of spill port radially; Form drainback passage between the first oil return dividing plate and the second oil return dividing plate, the top of first oil return dividing plate annular pot shell is lower than the top of the second oil return dividing plate, and drainback passage is above the gap that forms between electric motor stator iron core and the electric motor rotor.

The top of the described second oil return dividing plate is fixedly connected with frame.

The top of described first oil return dividing plate annular pot shell is higher than the radially vertical peak of spill port.

The advantage of the utility model:

(1), through two oil return dividing plates being set at the sidepiece of spill port radially; And form oil returning tube between the two oil return dividing plates; Radially the refrigeration oil of spill port outflow flows back to scroll compressor bottom oil sump along the gap that oil returning tube gets between electric motor rotor and the electric motor stator iron core, need not to change the structure of original electric motor stator iron core, need not to reserve and dodges groove; Simplify the processing technology of stator iron core, guaranteed the utilization efficiency of compressor;

(2), the utility model is simple in structure, easy to use, only needs on the structure of original scroll compressor, to install the oil return dividing plate additional and gets final product, and do not influence the assembling of other parts of compressor.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the long splice composition of frame and the first oil return dividing plate, the second oil return dividing plate.

Embodiment

See Fig. 1; A kind of scroll compressor; Comprise housing 1; Be arranged at bent axle 2 in the housing 1, be arranged at bent axle 2 bottoms electric motor rotor 3, be set in the outer electric motor stator iron core 4 of electric motor rotor 3, be arranged at bent axle 2 tops moving scroll 5, be arranged at moving scroll 5 tops and moving scroll 5 intermeshing fixed scrolls 6 and be arranged on the bent axle 2 and be positioned at the frame 7 of moving scroll 5 belows, frame 7 is provided with radially spill port 8;

See Fig. 2; The frame 7 outer second oil return dividing plates 10 that are set with the first oil return dividing plate 9 and ladder annular successively; The first oil return dividing plate 9 is formed with the toroidal membrane that is connected in annular pot shell bottom surface by being set in the outer annular pot shell of frame; The inwall of annular pot shell is connected to form annular oil return oil sump 11 with frame 7 outer walls of spill port 8 belows radially; The top that forms drainback passage 12, the first oil return dividing plates 9 annular pot shells between the first oil return dividing plate 9 and the second oil return dividing plate 10 is lower than the top of the second oil return dividing plate 10, and drainback passage 12 is above the gap that forms between electric motor stator iron core 4 and the electric motor rotor 3.

See Fig. 1, Fig. 2; Install the structure of the utility model additional at scroll compressor after; The stream of the refrigeration oil in the scroll compressor is: in the refrigeration oil elder generation suction crankshaft oil hole 14 in the oil sump 13 of scroll compressor bottom; Refrigeration oil gets into moving scroll 5 and decides in the compression chamber 16 between the scroll 6 through frame oil nest 15 then; Part refrigeration oil in the compression chamber 16 flows out through the radially spill port in the frame 78 and gets in the oil return oil sump 11; When oil return oil sump 11 oil masses do not stop to rise until oil sump completely after refrigeration oil in the oil return oil sump 11 flow into the first oil return dividing plate 9 and the second oil return dividing plate 10 forms in the drainback passages 12, in the gap that drainback passage 12 flows between electric motor stator iron cores 4 and the electric motor rotor 3, flow at last in the oil sump 13 of scroll compressor bottom along the gap.

Claims

1. scroll compressor; Comprise housing; Be arranged at the bent axle, the electric motor rotor that is arranged at the bent axle bottom that have crankshaft oil hole in the housing, be set in the outer electric motor stator iron core of electric motor rotor, be arranged at the bent axle top moving scroll, be arranged at moving scroll top and the intermeshing fixed scroll of moving scroll, be arranged on the bent axle and be positioned at the frame of moving scroll below and be arranged at housing and be positioned at bottom oil sump; Described frame is provided with radially spill port; Described moving scroll and the fixed scroll formation compression chamber that is meshing with each other; It is characterized in that: described frame is set with the second oil return dividing plate of the first oil return dividing plate and ladder annular outward successively; The first oil return dividing plate is formed with the toroidal membrane that is connected in annular pot shell bottom surface by being set in the outer annular pot shell of frame; The inwall of annular pot shell is connected to form annular oil return oil sump with the frame outer wall of the below of spill port radially; Form drainback passage between the first oil return dividing plate and the second oil return dividing plate, the top of first oil return dividing plate annular pot shell is lower than the top of the second oil return dividing plate, and drainback passage is above the gap that forms between electric motor stator iron core and the electric motor rotor.

2. a kind of scroll compressor according to claim 1 is characterized in that: the top of the described second oil return dividing plate is fixedly connected with frame.

3. a kind of scroll compressor according to claim 1 is characterized in that: the top of described first oil return dividing plate annular pot shell is higher than the radially vertical peak of spill port.