CN201747607U - Rotary compressor - Google Patents

Rotary compressor Download PDF

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Publication number
CN201747607U
CN201747607U CN 201020283929 CN201020283929U CN201747607U CN 201747607 U CN201747607 U CN 201747607U CN 201020283929 CN201020283929 CN 201020283929 CN 201020283929 U CN201020283929 U CN 201020283929U CN 201747607 U CN201747607 U CN 201747607U
Authority
CN
China
Prior art keywords
slide plate
angle
slide sheet
cylinder
rotary compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201020283929
Other languages
Chinese (zh)
Inventor
龙春仙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Meizhi Compressor Co Ltd
Original Assignee
Guangdong Meizhi Compressor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Meizhi Compressor Co Ltd filed Critical Guangdong Meizhi Compressor Co Ltd
Priority to CN 201020283929 priority Critical patent/CN201747607U/en
Application granted granted Critical
Publication of CN201747607U publication Critical patent/CN201747607U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a rotary compressor, comprising a motor assembly and a compression assembly, wherein the motor assembly is arranged in a sealed casing; the compression assembly comprises an air cylinder, a main bearing, an auxiliary bearing, a crankshaft, a piston and a slide sheet, wherein the main bearing and the auxiliary bearing are arranged on the upper and lower sides of the air cylinder; the crankshaft is in contact with the rotor; the piston is arranged in the air cylinder and sleeved on an eccentric shaft of the crankshaft; the slide sheet is contained into the slide sheet groove of the air cylinder; the front end of the slide sheet is butted with the outer circle of the slide sheet; the compression cavity of the air cylinder is separated into a low voltage cavity and a high voltage cavity through the slide sheet and the piston; and the side of the slide sheet forms an arc shape. The size of the included angle between the arc shape of the front end of the slide sheet on one low-voltage side and the first chord is the same with the size of the included angle between the arc shape of the rear end of the slide sheet on one high-voltage side and the second chord. The size of the included angle between the arc shape of the rear end of the slide sheet on one low-voltage side and the first chord is the same with the size of the included angle between the arc shape of the front end of the slide sheet on one high-voltage side and the second chord. The utility model has the advantages of simple and reasonable structure, low manufacture cost, and wide application range.

Description

A kind of rotary compressor
Technical field
The utility model relates to a kind of rotary compressor.
Background technique
Rotary compressor is the important composition parts that air conditioner, refrigerator etc. utilize the household electric appliance of cooling cycle system work.The parts that utilize it under driven by motor, to move: rolling rotor or to-and-fro motion words plug etc., change mechanical energy into the pressure energy, realize compression, and the refrigerant compressed discharge is entered refrigeration cycle rotary compressor cylinder inner refrigerant.
Accompanying drawing 1 is the structural representation of existing rotary compressor.As shown in Figure 1, rotary compressor is made up of the compression assembly and the electric machine assembly that are arranged in the columnar main casing 1.Main casing 1 is by upper shell 2 and lower shell body 10 sealings.In the housing of rotary compressor, compression assembly is arranged on the bottom, the top that electric machine assembly is provided with.Electric machine assembly is made up of stator 4 and rotor 5, and stator 4 and rotor 5 are made of the stacked iron core that forms of silicon steel core sheet respectively.Rotor 5 is cylindric, and rotor 5 directly is pressed into the upper end of bent axle 6 and inserts in the cylinder cavity of stator 4, is separated by by air gap between rotor 5 and the stator 4.Embed the winding of enameled cable coiled on the stator 4.Winding on the stator 4 outside source current by the time produce magnetic field.Rotor 5 with the magnetic field interaction of stator 4, produces electromagnetic torque and rotate 6 rotations of rotor 5 drive bent axles in stator 4 when having electric current to pass through.Bent axle 6 inserts in the cylinder 8 of compression assembly, is overlapping the piston 11 that is arranged in cylinder 8 compression chambers on the eccentric shaft 63 of bent axle 5 lower ends.Compression assembly comprises main bearing 7, supplementary bearing 9 and cylinder 8.Main bearing 7 and supplementary bearing 9 are by the both sides up and down that are bolted to cylinder 8, and main bearing 7, cylinder 8 and supplementary bearing 9 surround compression chamber jointly.Vane slot 13 on the cylinder 8 is being taken in slide plate 12, and the front end of slide plate 12 is crimped on the cylindrical of piston 11, and by slide plate 12 compression chamber being separated into hyperbaric chamber 14b and the pressure that pressure is Pd is the low-pressure cavity 14a of Ps.Rotation by bent axle 6 drives piston 11 internal face rolling along cylinder 8 in cylinder 8, realizes compression and discharging to entering the refrigeration agent in the compression chamber.
When rotary compressor moved, refrigeration agent was compressed into pressurized gas in compression chamber, because slide plate 12 both sides are in low-pressure cavity and hyperbaric chamber respectively, bore the load p that pressure difference produces, and made slide plate 12 that low dip take place in vane slot.And when rotary compressor moved, slide plate 12 was along with piston 11 is done the high speed to-and-fro motion, and the both sides of slide plate 11 produce wearing and tearing.Especially for some refrigeration agents, as R401A, CO 2Deng, its operating pressure height in rotary compressor, the pressure reduction of compression chamber is bigger, and the easier both sides abrasion loss of slide plate 11 that causes increases, and causes the life-span of slide plate 11 to reduce.
The model utility content
The purpose of this utility model aims to provide that a kind of simple and reasonable, flexible operation, fabricating cost are low, long service life, rotary compressor applied widely, to overcome deficiency of the prior art.
A kind of rotary compressor by this purpose design, comprise the electric machine assembly and the compression assembly that are arranged in the closed shell, electric machine assembly comprises stator and rotor, compression assembly comprises cylinder, be separately positioned on cylinder up and down the main bearing of both sides and supplementary bearing, the bent axle that joins with rotor, be positioned at cylinder and be set in piston on the eccentric shaft of bent axle, be accommodated in the slide plate of cylinder vane slot, the front end of slide plate is resisted against on the cylindrical of piston, by slide plate and piston the cylinder compression chamber is separated into low-pressure cavity and hyperbaric chamber, its structure characteristic is that the side of slide plate is curved.
Described slide plate is positioned at the size of the angle of the arc of front end of a side of low pressure and place first string, is positioned at the equal and opposite in direction of the angle of the arc of rear end of high pressure one side and place second string with slide plate, and setting this angle is α, has
0 ≤ α ≤ 2 arctg c h ,
Wherein, c is the gap between slide plate 12 and the vane slot 13, and the width of vane slot 13 is L, and the thickness of slide plate 12 is n, c=L-n; H is the eccentric amount e that the length H of slide plate 12 deducts twice bent axle 6, i.e. h=H-2e.
Described slide plate is positioned at the size of the angle of the arc of rear end of a side of low pressure and place first string, is positioned at the equal and opposite in direction of the angle of the arc of front end of high pressure one side and place second string with slide plate, and setting this angle is β, and β 〉=α is arranged.
Described slide plate is positioned at the arc peak of a side of low pressure to the distance of slide plate front end, and the arc peak that is positioned at high pressure one side with slide plate equates to the distance of slide plate rear end, sets this distance and is D, and D 〉=2e is arranged.
A side or two sides of described slide plate are curved.
The utility model is set to arc by the side of slide plate, the wear intensity in the time of reducing vane motion, thus prolonging working life of slide plate, it has simple and reasonable, flexible operation, fabricating cost is low and advantage of wide range of application.
Description of drawings
Fig. 1 is vertical sectional structure schematic representation of existing rotary compressor.
Fig. 2 is the structural representation of bent axle.
Fig. 3 is that A-A among Fig. 1 is to the sectional structure schematic representation.
Fig. 4 is the utility model one embodiment's a broken section structural representation.
Fig. 5 is the structure for amplifying schematic representation of slide plate.
Among the figure: 1 is main casing, and 2 is upper shell, and 3 is discharge tube, 4 is stator, and 5 is rotor, and 6 is bent axle, 7 is main bearing, and 8 is cylinder, and 9 is supplementary bearing, 10 is lower shell body, and 11 is piston, and 12 is slide plate, 12.1 be first string, 12.2 is second string, 13 is vane slot, 14a is a low-pressure cavity, and 14b is a hyperbaric chamber, and 63 is eccentric shaft.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 5, this rotary compressor, comprise the electric machine assembly and the compression assembly that are arranged in the closed shell, electric machine assembly comprises stator 4 and rotor 5, compression assembly comprises cylinder 8, be separately positioned on the main bearing 7 and the supplementary bearing 9 of cylinder both sides about in the of 8, the bent axle 6 that joins with rotor 5, be positioned at cylinder 8 and be set in piston 11 on the eccentric shaft of bent axle 6, be accommodated in the slide plate 12 in the cylinder vane slot 13, the front end of slide plate 12 is resisted against on the cylindrical of piston 11, by slide plate 12 and piston 11 the cylinder compression chamber is separated into low-pressure cavity 14a and hyperbaric chamber 14b, the side of slide plate 12 is curved.The distance at the center of bent axle 6 and its eccentric part 63 centers is crankshaft eccentric amount e.
According to the design needs, a side or two sides that can slide plate 12 be set to arcuate structure.
Slide plate 12 is positioned at the size of the angle of the arc of front end of a side of low pressure and place first string 12.1, is positioned at the equal and opposite in direction of the angle of the arc of rear end of high pressure one side and place second string 12.2 with slide plate 12, and setting this angle is α, has
0 ≤ α ≤ 2 arctg c h ,
Wherein, c is the gap between slide plate 12 and the vane slot 13, and the width of vane slot 13 is L, and the thickness of slide plate 12 is n, c=L-n; H is the eccentric amount e that the length H of slide plate 12 deducts twice bent axle 6, i.e. h=H-2e.
Slide plate 12 is positioned at the size of the angle of the arc of rear end of a side of low pressure and place first string 12.1, is positioned at the equal and opposite in direction of the angle of the arc of front end of high pressure one side and place second string 12.2 with slide plate 12, and setting this angle is β, and β 〉=α is arranged.
Slide plate 12 is positioned at the arc peak of a side of low pressure to the distance of slide plate 12 front ends, and the arc peak that is positioned at high pressure one side with slide plate 12 equates to the distance of slide plate 12 rear ends, sets this distance and is D, and D 〉=2e is arranged.

Claims (5)

1. rotary compressor, comprise the electric machine assembly and the compression assembly that are arranged in the closed shell, electric machine assembly comprises stator (4) and rotor (5), compression assembly comprises cylinder (8), be separately positioned on cylinder (8) main bearing of both sides (7) and supplementary bearing (9) up and down, the bent axle (6) that joins with rotor (5), be positioned at cylinder (8) and be set in piston (11) on the eccentric shaft of bent axle (6), be accommodated in the slide plate (12) in the cylinder vane slot (13), the front end of slide plate (12) is resisted against on the cylindrical of piston (11), by slide plate (12) and piston (11) the cylinder compression chamber is separated into low-pressure cavity (14a) and hyperbaric chamber (14b), it is characterized in that the side of slide plate (12) is curved.
2. rotary compressor according to claim 1, it is characterized in that described slide plate (12) is positioned at the size of the angle of the arc of front end of a side of low pressure and place first string (12.1), be positioned at the equal and opposite in direction of the angle of the arc of rear end of high pressure one side and place second string (12.2) with slide plate (12), setting this angle is α, has
0 ≤ α ≤ 2 arctg c h ,
Wherein, c is the gap between slide plate (12) and the vane slot (13), and the width of vane slot (13) is L, and the thickness of slide plate (12) is n, c=L-n; H is the eccentric amount e that the length H of slide plate (12) deducts twice bent axle (6), i.e. h=H-2e.
3. rotary compressor according to claim 2, it is characterized in that described slide plate (12) is positioned at the size of the angle of the arc of rear end of a side of low pressure and place first string (12.1), be positioned at the equal and opposite in direction of the angle of the arc of front end of high pressure one side and place second string (12.2) with slide plate (12), setting this angle is β, and β 〉=α is arranged.
4. according to the arbitrary described rotary compressor of claim 1 to 3, it is characterized in that described slide plate (12) is positioned at the arc peak of a side of low pressure to the distance of slide plate (12) front end, the arc peak that is positioned at high pressure one side with slide plate (12) equates to the distance of slide plate (12) rear end, set this distance and be D, D 〉=2e is arranged.
5. rotary compressor according to claim 1 is characterized in that a side or two sides of described slide plate (12) are curved.
CN 201020283929 2010-07-30 2010-07-30 Rotary compressor Expired - Fee Related CN201747607U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020283929 CN201747607U (en) 2010-07-30 2010-07-30 Rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020283929 CN201747607U (en) 2010-07-30 2010-07-30 Rotary compressor

Publications (1)

Publication Number Publication Date
CN201747607U true CN201747607U (en) 2011-02-16

Family

ID=43582286

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201020283929 Expired - Fee Related CN201747607U (en) 2010-07-30 2010-07-30 Rotary compressor

Country Status (1)

Country Link
CN (1) CN201747607U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107061278A (en) * 2017-04-28 2017-08-18 广东美芝制冷设备有限公司 Rotary compressor and its slide plate, vane slot and compression assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107061278A (en) * 2017-04-28 2017-08-18 广东美芝制冷设备有限公司 Rotary compressor and its slide plate, vane slot and compression assembly

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110216

Termination date: 20190730

CF01 Termination of patent right due to non-payment of annual fee