CN201448239U

CN201448239U - Compression structure of a rotary compressor

Info

Publication number: CN201448239U
Application number: CN 200920061177
Authority: CN
Inventors: 黄锡槿; 李华明
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2009-07-24
Filing date: 2009-07-24
Publication date: 2010-05-05
Anticipated expiration: 2019-07-24

Abstract

The utility model discloses a compression structure of a rotary compressor, comprising a sliding blade, a rolling piston in the cavity of a cylinder. The rolling piston is sleeved into an eccentric axle at the lower end of a crank inserted into the cylinder and the rotation of the crank drives the rolling piston to roll along the cylinder wall surface and one end of the sliding blade is housed in a sliding blade groove in the cylinder and another end of the sliding blade is connected with the rolling piston by a first roller and the sliding blade freely swings in the sliding blade groove by the first roller and the sliding blades are connected with each other by inserting rolling flanges on the ends into connection grooves on the rolling pistons. The sliding blade can very smoothly move along with the piston to realize compression function; because the piston and the sliding blade are two separated parts, it is not necessary to set a piston technology gap during processing the excircle of the piston, therefore no clearance deteriorates; because the sliding blade is embedded into the piston, therefore there is no leakage problem of the relative movement between the piston and contact part of the sliding blade.

Description

A kind of compression structure of rotary compressor

Technical field

The utility model is a kind of compression structure of rotary compressor, belongs to the renovation technique of the compression structure of rotary compressor.

Background technique

Compressor is the important composition parts that air conditioner, refrigerator etc. utilize the household electric appliance of cooling cycle system work.Utilize its parts that under driven by motor, move (rolling rotor or reciprocating piston etc.) to change mechanical energy into the pressure energy, realize compression, and the refrigerant compressed discharge is entered refrigeration cycle the compresser cylinder inner refrigerant.

The compression structure of traditional rotary compressor such as Fig. 2, shown in Figure 3, Fig. 2 is the compression structure schematic representation of existing compressor with rolling rotor, piston 11 contacts with the thrust of slide plate 14 by spring 15 among Fig. 2, and piston 11 has relative motion with 14 of slide plates, then certainly will have the problem of gas leakage in piston 11 and slide plate 14 position contacting, the gas leakage at this place will have a strong impact on the efficiency of compressor.That Fig. 3 provides is the compression structure figure of existing general swing rotary compressor; Slide plate and piston become one among the figure, solved the leakage between slide plate and the piston, yet, just since piston and slide plate be structure as a whole, it is a difficult problem that outside piston is finish-machined to, have on piston, open tool withdrawal groove 11.1 for solving this difficult problem, and tool withdrawal groove 11.1 becomes a serious compression clearance, so that efficiency is worsened.

The model utility content

The purpose of this utility model is to consider the problems referred to above and a kind of leakage problem that solves traditional rotary compressor is provided, and has also solved the compression structure of the rotary compressor of traditional swing structure compression clearance deterioration problem.The utility model is simple in structure, and is convenient and practical.

The technical solution of the utility model is: include slide plate, be arranged on the interior rolling piston of cavity of cylinder, and rolling piston is sleeved on the eccentric shaft that inserts the bent axle lower end in the cylinder, the rotation of bent axle drives rolling piston and rolls along cylinder wall surface in cylinder, one end of slide plate is contained in the set vane slot of cylinder, the other end of slide plate is connected with rolling piston in the cylinder by first roller, slide plate can freely swing in vane slot by first roller, and wherein the rolling flange made by its end of slide plate inserts the connecting groove of making on the rolling piston and links together.

Above-mentioned rolling flange is the arc surface flange, and the connecting groove of making on the rolling piston should be arc groove mutually.

The utility model is because the rolling flange that adopts slide plate to make by its end inserts the structure that the connecting groove made on the rolling piston links together, and slide plate can be very smooth follows the piston realization compression function that moves together; And because piston and slide plate are 2 parts separately, outside piston processing just needn't be provided with piston technology breach, thereby the situation that does not also have clearance to worsen; Because slide plate embeds internal piston, there has not been the leakage problem of piston and the relative movement of slide plate contacting part simultaneously yet; The utility model has solved the leakage problem of traditional rotary compressor, has also solved the problem that traditional swing structure compression clearance worsens.Be that a kind of design is ingenious, function admirable, the compression structure of convenient and practical rotary compressor.

Description of drawings

Fig. 1 is the structural representation of existing compressor with rolling rotor.

Fig. 2 is the compression structure schematic representation of existing compressor with rolling rotor.

Fig. 3 is the compression structure schematic representation of existing swing compressor.

Fig. 4 is the compression structure schematic representation of the swing compressor of slide plate of the present invention.

Fig. 5 is the schematic representation of slide plate of the present invention and piston

Among the figure: 1 is main casing, and 2 is upper shell, and 3 is outlet pipe, 4 is motor 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, 11.1 piston technology breach, 11.2 be the connecting groove of second roller on the piston, 12 is vane slot, 13 is first roller, 14 is slide plate, and 14.1 are the rolling flange

Embodiment

Embodiment:

Fig. 1 is the structural representation of existing compressor with rolling rotor, comprises the pump housing and motor in the main casing 1.Main casing 1 is by upper shell 2 and lower shell body 10 sealings.In compressor housing, the pump housing is arranged on the bottom, the top that motor is provided with.Motor is made up of stator 4 and rotor 5, and stator 4 and rotor 5 are made of the iron core that the folded collection of silicon steel core sheet forms respectively.Rotor 5 is cylindric.Directly be pressed into the upper end of bent axle 6 and inserted in the cylinder cavity of stator iron core, have air gap to be separated by between rotor 5 and the stator 4.Embed the winding of enameled cable coiled on the stator 4.Staor winding outside source current by the time produce magnetic field.When rotor 5 has electric current to pass through,, produce electromagnetic torque and in stator 4, rotate 6 rotations of rotor 5 drive bent axles with the magnetic field interaction of stator 4.The pump housing comprises main bearing 7, supplementary bearing 9 and cylinder 8.Main bearing 7 and supplementary bearing 9 are made to be formed with the cylinder cavity in the cylinder 8 by the both sides up and down that are bolted to cylinder 8.The compression structure schematic representation of the utility model compressor is shown in Fig. 4,5, include slide plate 14, be arranged on the rolling piston 11 in the cavity of cylinder 8, and rolling piston 11 is sleeved on the eccentric shaft 63 that inserts bent axle 6 lower ends in the cylinder 8, the rotation of bent axle 6 drives rolling piston 11 and rolls along cylinder wall surface in cylinder 8, the rotation of bent axle 6 drives piston 11 and rolls along cylinder wall surface in cylinder 8, realizes entering the compression and the exhaust process of cylinder cavity inner refrigerant.One end of slide plate 14 is contained in the set vane slot 12 of cylinder 8, the other end of slide plate 14 is connected by the rolling piston 11 in first roller 13 and the cylinder 8, slide plate 14 can freely swing in vane slot 12 by first roller 13, and wherein the rolling flange 14.1 made by its end of slide plate 14 inserts the connecting groove of making on the rolling pistons 11 11.2 and links together.

In the present embodiment, above-mentioned rolling flange 14.1 is the arc surface flange, and the connecting groove of making on the rolling piston 11 11.2 should be arc groove mutually.

The working principle that the compressor of the utility model compression structure is housed is: the rotation of bent axle 6 drives rolling piston 11 and rolls along cylinder wall surface in cylinder 8, the rotation of bent axle 6 drives piston 11 and rolls along cylinder wall surface in cylinder 8, realizes entering the compression and the exhaust process of cylinder cavity inner refrigerant.

Claims

1. the compression structure of a rotary compressor, include slide plate (14), be arranged on the interior rolling piston (11) of cavity of cylinder (8), and rolling piston (11) is sleeved on the eccentric shaft (63) that inserts bent axle (6) lower end in the cylinder (8), the rotation of bent axle (6) drives rolling piston (11) and rolls along cylinder wall surface in cylinder (8), one end of slide plate (14) is contained in the set vane slot (12) of cylinder (8), the other end of slide plate (14) is connected by the interior rolling piston (11) of first roller (13) and cylinder (8), slide plate (14) can freely swing in vane slot (12) by first roller (13), it is characterized in that rolling flange (14.1) that slide plate (14) is made by its end inserts the connecting groove of making on the rolling piston (11) (11.2) and links together.

2. the compression structure of rotary compressor according to claim 1 is characterized in that above-mentioned rolling flange (14.1) is the arc surface flange, and the connecting groove of making on the rolling piston (11) (11.2) should be arc groove mutually.