CN202132239U

CN202132239U - Rotary compressor

Info

Publication number: CN202132239U
Application number: CN201120218684U
Authority: CN
Inventors: 孟亮
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2011-06-24
Filing date: 2011-06-24
Publication date: 2012-02-01
Anticipated expiration: 2021-06-24

Abstract

The utility model discloses a rotary compressor, which comprises a compression mechanism and a motor which are arranged in a housing, wherein the compression mechanism includes an air cylinder having a compression chamber, an eccentric crankshaft is used for driving a piston to eccentrically revolve in the compression chamber, a main bearing is arranged on the air cylinder and a silencer having an exhaust hole is arranged on the main bearing; the motor includes a stator and a rotor having a counterweight; the eccentric crankshaft is connected with the rotor; a windshield cover connected with the counterweight to reduce the windward side of the counterweight is arranged on the outside of the counterweight; the windshield cover is cylindrical; an abdicating hole matched with the eccentric crankshaft or the main bearing is arranged in the centre of the bottom of the windshield cover; an opening is arranged on one side of the windshield cover and communicated with the abdicating hole; the side wall of the windshield cover is connected with the periphery of the counterweight; and a vertical annular baffle is arranged on the abdicating hole of the windshield cover. The rotary compressor has the advantages of simple and reasonable structure, good flexibility in operation, low manufacturing cost, few oil throughputs, high working efficiency and broad scope of application.

Description

Rotary compressor

Technical field

The utility model relates to a kind of rotary compressor.

Background technique

Existing rotary compressor is seen shown in the accompanying drawing 1, comprises the compressing mechanism 2 and the motor component that are installed in the housing 1, and compressing mechanism 2 comprises cylinder and main bearing 5, and the baffler 6 that has exhaust port is installed on the main bearing 5; Motor component comprises stator 3 and the rotor 4 that equilibrium block 7 is housed.When the high pressure refrigerant gas after overcompression is discharged, can form high velocity air from compression chamber.This high velocity air changes direction after impacting the inwall of housing 1, and rotates eccentric down the facining the wind of drive of the equilibrium block 7 of high-speed rotation, thereby forms strong turbulent flow, and then bigger kinetic energy rejection and the pneumatic noise of generation, has reduced the operational efficiency of compressor.

Meanwhile, when high pressure refrigerant gas is discharged from compressing mechanism, can carry a certain amount of lubricant oil, and become the oil gas mixture.When this oil gas mixture was discharged at a high speed through the exhaust port on the baffler 6, lubricant oil was vaporific and flows with cold media air is mixed, and is finally taken out of compressor, forms and tells oil mass.Above-mentioned strong turbulent flow can cause the broken of big drop and strengthen the carrying capacity of air-flow to drop, is unfavorable for Oil-gas Separation, and then produces the bigger oil mass of telling, and makes the efficiency of rotary compressor and even whole air-conditioning system descend.

The model utility content

The purpose of the utility model aim to provide a kind of simple and reasonable, flexible operation, fabricating cost low, tell that oil mass is few, high working efficiency, rotary compressor applied widely, to overcome deficiency of the prior art.

A kind of rotary compressor by this purpose design; Comprise the compressing mechanism and the motor that are arranged in the housing; Compressing mechanism comprises the cylinder that has compression chamber, and the eccentric crankshaft driven plunger is made eccentric rotary in compression chamber, and main bearing is arranged on the cylinder; The baffler that has exhaust port is arranged on the main bearing; Motor comprises stator and has the rotor of equilibrium block, and eccentric crankshaft and rotor join, and its structure characteristic is that the arranged outside of equilibrium block has the case that keeps out the wind that joins with equilibrium block and reduce the windward side of equilibrium block.

The said case that keeps out the wind is round barrel shape, and the bottom central of the case that keeps out the wind is provided with the resigning hole that matches with eccentric crankshaft or main bearing, and a side of the case that keeps out the wind is provided with opening, and this opening is communicated with resigning hole, and the sidewall of the case that keeps out the wind and the periphery of equilibrium block are joined.

The said case bottom of keeping out the wind is provided with more than one positioning hole, and rivet passes will keep out the wind behind the positioning hole case and equilibrium block and links together; And/or the sidewall of the said case that keeps out the wind is provided with more than one claw, and the periphery of equilibrium block is provided with draw-in groove, and claw is hooked in the draw-in groove.

The resigning hole place of the said case that keeps out the wind is provided with the baffle plate of upright ring-type, and this baffle plate inserts between equilibrium block and eccentric crankshaft or the main bearing.

The said case that keeps out the wind not exclusively surrounds equilibrium block.

The utility model has the case that keeps out the wind that joins with equilibrium block and reduce the windward side of equilibrium block through the arranged outside at equilibrium block; The high velocity air that makes discharge is facingd the wind to rotate by original off-centre and becomes the cylndrical surface and rotate; Gas-flow resistance and disturbance have been reduced greatly; The lubricant oil that prevents big drop breaks, thereby has improved the Oil-gas Separation rate, has improved the efficiency of compressor.

The case that keeps out the wind in the utility model has reduced the windward side of equilibrium block; But not exclusively surround equilibrium block; Both reached the purpose that reduces windage; Can reduce again and make the required material of case that keeps out the wind, have simple and reasonable, flexible operation, fabricating cost low, tell that oil mass is few, high working efficiency, advantage of wide range of application.

Description of drawings

Fig. 1 is the broken section structural representation of existing rotary compressor.

Fig. 2 is the utility model first embodiment's a broken section structural representation.

Fig. 3 is the perspective view of the case that keeps out the wind among first embodiment.

Fig. 4 is first embodiment's a use reference drawing.

Fig. 5 is the perspective view of the case that keeps out the wind among second embodiment.

Fig. 6 is second embodiment's a use reference drawing.

Fig. 7 is the perspective view of the case that keeps out the wind among the 3rd embodiment.

Fig. 8 is the 3rd embodiment's a use reference drawing.

Fig. 9 is the perspective view of the case that keeps out the wind among the 4th embodiment.

Figure 10 is the 4th embodiment's a use reference drawing.

Among the figure: 1 is housing, and 2 is compressing mechanism, and 3 is stator, and 4 is rotor, and 5 is main bearing; 6 is baffler, and 7 is equilibrium block, and 8 are the case that keeps out the wind, and 8.1 is positioning hole; 8.2 be claw, 8.3 is baffle plate, 9 is outlet pipe, 10 claws for the case that keeps out the wind; 11 is rivet, and 20 is compression chamber, and 21 is piston, and 22 is eccentric crankshaft.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

First embodiment

Referring to Fig. 2-Fig. 4; This rotary compressor comprises the compressing mechanism 2 and the motor that are arranged in the housing 1, and compressing mechanism 2 comprises the cylinder that has compression chamber 20; Eccentric crankshaft 22 driven plunger 21 are made eccentric rotary in compression chamber 20; Main bearing 5 is arranged on the cylinder, and the baffler 6 that has exhaust port is arranged on the main bearing 5, and motor comprises stator 3 and the rotor 4 that has equilibrium block 7; Eccentric crankshaft 22 joins with rotor 4, and the arranged outside of equilibrium block 7 has the case 8 that keeps out the wind that joins with equilibrium block 7 and reduce the windward side of equilibrium block 7.

The case 8 that keeps out the wind is round barrel shape; The bottom central of case 8 of keeping out the wind is provided with the resigning hole that matches with eccentric crankshaft 22 or main bearing 5; The side of case 8 of keeping out the wind is provided with opening, and this opening is communicated with resigning hole, and the sidewall of the case 8 that keeps out the wind and the periphery of equilibrium block 7 are joined.The case 8 that keeps out the wind not exclusively surrounds equilibrium block 7.

In the present embodiment, the sidewall of the case 8 that keeps out the wind is provided with more than one claw 8.2, and the periphery of equilibrium block 7 is provided with draw-in groove, and claw 8.2 is hooked in the draw-in groove, sees Fig. 3-Fig. 4.

Second embodiment

Referring to Fig. 5-Fig. 6, in the present embodiment, the resigning hole place of the case 8 that keeps out the wind is provided with the baffle plate 8.3 of upright ring-type, and this baffle plate 8.3 inserts between equilibrium block 7 and eccentric crankshaft 22 or the main bearing 5.

All the other are not stated part and see first embodiment, no longer repeat.

The 3rd embodiment

Referring to Fig. 7-Fig. 8, in the present embodiment, case 8 bottoms of keeping out the wind are provided with more than one positioning hole 8.1, and rivet 11 passes the case 8 that will keep out the wind behind the positioning hole 8.1 and links together with equilibrium block 7.

All the other are not stated part and see first embodiment, no longer repeat.

The 4th embodiment

Referring to Fig. 9-Figure 10, in the present embodiment, the resigning hole place of the case 8 that keeps out the wind is provided with the baffle plate 8.3 of upright ring-type, and this baffle plate 8.3 inserts between equilibrium block 7 and eccentric crankshaft 22 or the main bearing 5.Case 8 bottoms of keeping out the wind are provided with more than one positioning hole 8.1, and rivet 11 passes the case 8 that will keep out the wind behind the positioning hole 8.1 and links together with equilibrium block 7.

All the other are not stated part and see first embodiment, no longer repeat.

Except each above-mentioned embodiment, can also be with first embodiment and the 3rd embodiment, first embodiment and the 4th embodiment make up, to obtain with the above-mentioned essentially identical technique effect of each embodiment.

Claims

1. rotary compressor; Comprise the compressing mechanism (2) and the motor that are arranged in the housing (1); Compressing mechanism (2) comprises the cylinder that has compression chamber (20), and eccentric crankshaft (22) driven plunger (21) is made eccentric rotary in compression chamber (20), and main bearing (5) is arranged on the cylinder; The baffler (6) that has exhaust port is arranged on the main bearing (5); Motor comprises stator (3) and has the rotor (4) of equilibrium block (7), and eccentric crankshaft (22) joins with rotor (4), and the arranged outside that it is characterized in that equilibrium block (7) has the case that keeps out the wind (8) that joins with equilibrium block (7) and reduce the windward side of equilibrium block (7).

2. rotary compressor according to claim 1; It is characterized in that the said case that keeps out the wind (8) is round barrel shape; The bottom central of case (8) of keeping out the wind is provided with the resigning hole that matches with eccentric crankshaft (22) or main bearing (5); The side of case (8) of keeping out the wind is provided with opening, and this opening is communicated with resigning hole, and the periphery of the sidewall of the case that keeps out the wind (8) and equilibrium block (7) is joined.

3. rotary compressor according to claim 2 is characterized in that the said case that keeps out the wind (8) bottom is provided with more than one positioning hole (8.1), and rivet (11) passes the case (8) that will keep out the wind behind the positioning hole (8.1) and links together with equilibrium block (7); And/or the sidewall of the said case that keeps out the wind (8) is provided with more than one claw (8.2), and the periphery of equilibrium block (7) is provided with draw-in groove, and claw (8.2) is hooked in the draw-in groove.

4. rotary compressor according to claim 3 is characterized in that the resigning hole place of the said case that keeps out the wind (8) is provided with the baffle plate (8.3) of upright ring-type, and this baffle plate (8.3) inserts between equilibrium block (7) and eccentric crankshaft (22) or the main bearing (5).

5. according to the arbitrary described rotary compressor of claim 1 to 4, it is characterized in that the said case that keeps out the wind (8) not exclusively surrounds equilibrium block (7).