CN201757060U

CN201757060U - Rotary compressor

Info

Publication number: CN201757060U
Application number: CN2010202301477U
Authority: CN
Inventors: 郝唯; 谢利昌; 黄云; 安吉阁
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Priority date: 2010-06-18
Filing date: 2010-06-18
Publication date: 2011-03-09
Anticipated expiration: 2020-06-18

Abstract

The utility model relates to the technical field of refrigeration compressors, in particular to a rotary compressor. In the rotary compressor of the utility model, an arc groove is axially arranged on the periphery of a roller; one end of a slip sheet is shaped into an arc surface corresponding to the arc groove; the arc surface of the slip sheet always abuts against the arc groove of the roller; and the arc surface of the slip sheet always keeps contact with the arc grove on one surface, the leakage of air in a compression cavity to the air in an air suction cavity is greatly reduced during the compression process,, and the utility model can avoid the problem that a traditional compressor slip sheet is in contact with a roller line and causes the volume reduction of discharged compression air, improves the efficiency of the compressor, enables relative motion speed of the roller and the slip sheet to be slower, reduces the sliding-friction loss between the roller and the slip sheet, improves the mechanical efficiency, reduces the power consumption and enhances the performance of the compressor.

Description

A kind of rotary compressor

Technical field

The utility model relates to technical field of refrigeration compressors, relates in particular to a kind of rotary compressor.

Background technique

Refrigeration compressor is that compression refrigerant makes it participate in the circuit nucleus equipment in refrigerator, the air-conditioning system, and rotary compressor is modal compressor; The main compressing member of rotary compressor as shown in Figure 1, cylinder of compressor 1 central authorities are provided with the cylinder chamber 11 of perforation, be provided with the roller 3 that eccentric crankshaft 2 drives in the cylinder chamber 11, cylinder 1 is provided with vane slot 12, vane slot 12 is provided with slide plate 4, and slide plate 4 touches periphery by roller 3 all the time by elastic device 42; Cover respectively in the both sides of cylinder 1 and to establish upper flange, the lower flange (not shown), so just, enclose sealing cylinder chamber 11, separation and roller 3 at slide plate 4 are divided into air aspiration cavity 33 and compression chamber 34 with cylinder chamber 11 under the tangent line effect mutually with cylinder 1 inwall, air aspiration cavity 33 is the cavity that is communicated with intakeport 35, compression chamber 34 is the cavity that is communicated with relief opening 36, eccentric crankshaft 2 drives roller 3 and rotates, air aspiration cavity 33 by intakeport 35 air-breathing after, when roller 3 after tangent line turns over intakeport 35 mutually with cylinder chamber 11 inwalls, previous air aspiration cavity 33 is converted into compression chamber 34, eccentric crankshaft 2 drives roller 3 and is rotated further, compression chamber 34 volumes reduce, gas is compressed, when be compressed to setting high pressure the time discharge cylinder chamber 11.

The slide plate 4 of rotary compressor and roller 3 are in compression process at present, slide plate 4 is an arc surface 41 with the surface of contact of roller 3, roller 3 peripheries are excircle, and slide plate 4 is line contact with contacting of roller 3, in compression process, pressurized gas in the compression chamber 34 is leaked to air aspiration cavity 33 by the contacting point of line contact easily, especially arrive under the situation than highpressure when gas compression, situation is more serious, and the pressurized gas scale of construction that has caused like this discharging reduces, increase motor power consumption, reduced the efficiency of compressor.

The model utility content

Of the present utility model is that slide plate at present rotary compressor contacts the leakage problem that causes with the roller line, and a kind of rotary compressor that reduces above influence is provided.

For reaching above purpose, adopt following technological scheme:

A kind of rotary compressor, described cylinder of compressor central authorities are provided with the cylinder chamber of perforation, are provided with the roller that eccentric crankshaft drives in the cylinder chamber, and cylinder is provided with vane slot, and vane slot is provided with slide plate, and slide plate touches the periphery by roller; The periphery of described roller is provided with an arc groove that runs through at axial direction, and slide plate one end is arranged to and the corresponding arc surface of arc groove, and the arc surface of slide plate touches the arc groove that leans against roller all the time.

The arc angle of wherein said arc groove is α, and the α value is: 0 °＜α≤180 °, the tail end of slide plate is provided with against the elastic device to roller.

The arc angle of wherein said arc groove is α, and the α value is: 180 °＜α＜360 °, the arc surface of slide plate is embedded in the arc groove of roller.

The junction of wherein said arc groove and roller periphery is provided with the fillet position.

The beneficial effects of the utility model are: institute of the present utility model rotary compressor is provided with an arc groove that runs through at the axial direction of the periphery of roller, slide plate one end is arranged to and the corresponding arc surface of arc groove, and the arc surface of slide plate touches the arc groove that leans against roller all the time; The arc surface of slide plate is in a face all the time with arc groove and contacts, in compression process, reduced the leakage of the gas in the compression chamber greatly to air-breathing intracavity gas, avoided the traditional compressor slide plate to contact and produced the problem of the pressurized gas scale of construction minimizing that has caused discharge with the roller line, improved the efficient of compressor, speed of related movement is lower between roller and the slide plate in addition, reduces sliding friction loss between the two, has improved mechanical efficiency, reduce power consumption, improved compressor performance.

Description of drawings

Fig. 1 is the rotary compressor structural representation of this prior art;

Fig. 2 is the utility model embodiment 1 structural representation;

Fig. 3 is the utility model embodiment 2 structural representations.

Embodiment

Below in conjunction with accompanying drawing the utility model is further specified:

Embodiment 1, as shown in Figure 2: a kind of rotary compressor, described cylinder of compressor 1 central authorities are provided with the cylinder chamber 11 of perforation, be provided with the roller 3 that eccentric crankshaft 2 drives in the cylinder chamber 11, cylinder 1 is provided with vane slot 12, and vane slot 12 is provided with slide plate 4, and slide plate 4 touches the periphery by roller 3; The periphery of roller 3 is provided with an arc groove that runs through 31 at axial direction, and slide plate 4 one ends are arranged to and arc groove 31 corresponding arc surfaces 41, and the arc surface 41 of slide plate 4 touches the arc groove 31 that leans against roller 3 all the time.The arc angle of arc groove 31 is α, and the α value is: 0 °＜α≤180 °, be provided with the elastic device 42 that spring constitutes at the tail end of slide plate 4, and spring provides elastic force that slide plate 4 is resisted against in the arc groove 31 of roller 3 all the time; When eccentric crankshaft 2 rotates, because the arc surface 41 of slide plate 4 is resisted against in the arc groove 31 of roller 3 all the time, causing roller 3 can not carry out circumference rotates, eccentric crankshaft 2 drives roller 3 and carry out oscillating motion in cylinder chamber 11, arc surface 41 contacts with the face of arc groove 31 can effectively reduce the leakage of compression chamber 34 gases to air aspiration cavity 33, improves the efficiency of compressor; The prototype test Data Detection is than the efficiency lifting 1%～3% of traditional compressor; Arc groove 31 is provided with fillet position 32 with the junction of roller 3 peripheries, and fillet position 32 can effectively reduce the stress damage of junction; As a kind of theoretical value arc angle is that α can value: 0 °＜α≤180, can not interfere phenomenon in theory, but preferable span is in 15 °≤α≤145 °, and as preferred embodiment of the present utility model, arc angle is that the value of α is 60 ° in the utility model.In addition among this embodiment, the arc surface 41 of slide plate 4 is in face with the vane slot of roller 3 and contacts, can reduce contact pressure (reducing the elastic force that elastic device provides) between the two and improve the pressure reduction of reliability, particularly suction and discharge of compressor when big, reliability obtains bigger raising; This embodiment only needs in processing at accurately machined roller 3 processing arc grooves 31, and other are consistent with the conventional compression machining.

Embodiment 2, as shown in Figure 3: a kind of rotary compressor, described cylinder of compressor 1 central authorities are provided with the cylinder chamber 11 of perforation, be provided with the roller 3 that eccentric crankshaft 2 drives in the cylinder chamber 11, cylinder 1 is provided with vane slot 12, and vane slot 12 is provided with slide plate 4, and slide plate 4 touches the periphery by roller 3; The periphery of roller 3 is provided with an arc groove that runs through 31 at axial direction, and slide plate 4 one ends are arranged to and arc groove 31 corresponding arc surfaces 41, and the arc surface 41 of slide plate 4 touches the arc groove 31 that leans against roller 3 all the time.The arc angle of wherein said arc groove 31 is α, the α value is: 180 °＜α＜360 °, such slide plate 4 arc grooves 31 have formed the slotted eye of large semi-circular, when just can being embedded, put in the slotted eye slide plate 4 of being arranged to corresponding arc surface 41, the size that the thickness of slide plate 4 is arranged to be slightly less than arc groove 31 openings gets final product, slide plate 4 can be relative to rotating with roller 3 several angles, under reasonably designing, when eccentric rotor drives roller 3 swings, roller 3 drives slide plate 4 and slides in vane slot 12, slide plate 4 can produce certain rotation angle with respect to roller 3, roller 3 can not interfere in swing process, can need not to use slide plate 4 all the time against the elastic device 42 of roller 3 like this; This uses new embodiment, not only can strengthen not only to reduce to use Component, the compressor quality problems that can also avoid compressor to cause because elastic device 42 follows the string.The circumference that is designed to more than more than half as a kind of theoretical value arc groove 31 gets final product, and promptly can form double team and be embedded slide plate 4, makes roller 3 can drive slide plate 4 in swing process and rotates and slip.Therefore the theoretical span of arc angle α is: 180 °＜α＜360 °, but in fact preferable span is in 125 °≤α≤160 °, and as preferred embodiment of the present utility model, arc angle is that the value of α is 145 ° in the utility model.

The above embodiment, it is preferred embodiments of the present utility model, be not to limit the utility model practical range,, all should be included in the utility model patent claim so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify.

Claims

1. rotary compressor, described cylinder of compressor (1) central authorities are provided with the cylinder chamber (11) of perforation, be provided with the roller (3) that eccentric crankshaft (2) drives in the cylinder chamber (11), cylinder (1) is provided with vane slot (12), vane slot (12) is provided with slide plate (4), and slide plate (4) touches the periphery by roller (3); It is characterized in that, the periphery of described roller (3) is provided with an arc groove that runs through (31) at axial direction, slide plate (4) one ends are arranged to and the corresponding arc surface of arc groove (31) (41), and the arc surface (41) of slide plate (4) touches the arc groove (31) that leans against roller (3) all the time.

2. a kind of rotary compressor according to claim 1 is characterized in that, the arc angle of described arc groove (31) is α, and the α value is: 0 °＜α≤180 °, the tail end of slide plate (4) is provided with against the elastic device (42) to roller (3).

3. a kind of rotary compressor according to claim 1 is characterized in that, the arc angle of described arc groove (31) is α, and the α value is: 180 °＜α＜360 °, the arc surface (41) of slide plate (4) is embedded in the arc groove (31) of roller (3).

4. a kind of rotary compressor according to claim 1 is characterized in that, described arc groove (31) is provided with fillet position (32) with the junction of roller (3) periphery.