CN1566680A

CN1566680A - Hermetic compressor

Info

Publication number: CN1566680A
Application number: CN 03130144
Authority: CN
Inventors: 金熙哲; 安炳河
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2003-06-17
Filing date: 2003-06-17
Publication date: 2005-01-19

Abstract

The invention discloses a closed type compressor, comprising a cylinder assembly with a inner space connecting the inlet and outlet, a dividing plate which divides the inner space into multiple closed space and pushes the fluid in every closed space to move relatively, and multiple blades which can interdict and compress the fluid in each closed space. The invention is to add magnetic substance into the blade or make it all by magnetic material, which can keep the blade clinging to the dividing plate without any elastic part, so the part amount and be reduced.

Description

Hermetic type compressor

Technical field

The present invention relates to a kind of compressor.Particularly relate to a kind of demarcation strip that utilizes the inner space is separated into a plurality of confined spaces, face and need not use other supporting part also can make blade always contact hermetic type compressor on demarcation strip.

Background technique

Generally, vane compressor is a crimping blade on bent axle, the inner space of cylinder is divided into compression volume and sucks rotary crankshaft under the state in space, and exchange compression field and suction field continuously, sucks, compression, discharges fluid.

Fig. 1 is the vertical section structure schematic representation of existing blade type hermetic type compressor.

As shown in Figure 1, existing blade type hermetic type compressor constitutes by be arranged on the compressor that housing 1 internal upper part produces the stator Ms of power and motor that rotor Mr forms, is connected with rotor Mr and sucks, compress, discharge fluid below motor.

Compressor comprises by the inner space that possesses suction, compression refrigerant gas and is fixed on the cylinder 2 of Lower Half in the housing 1; Be fixed on the above and below of cylinder 2 separately and form the upper bearing 3A and the lower bearing 3B in cylinder interior space together; Connect when being connected in conjunction with each bearing 3A, 3B and the power of motor and be sent to bent axle 4 in the compressor with the rotor Mr of motor; Be connected on the bent axle 4 or with its form whole, and for the inner space of cylinder 2 being separated into the 1st space S 1 and the 2nd space S 2, and thereon, the demarcation strip 5 of the sine wave shape of time each self-forming bending of bi-side; Lay respectively at the upper and lower bi-side of demarcation strip 5, and, each space S 1, S2 are separated into the 1st blade 6A and the 2nd blade 6B that sucks space and compression volume with the rotation of bent axle 4; The 1st spring assembly 7A of elastic support each blade 6A, 6B and the 2nd spring assembly 7B; Be arranged on the outside of upper bearing 3A and lower bearing 3B, the top baffler 8A and the bottom baffler 8B of the noise that produces when being used to reduce from pressurized gas that each space S 1, S2 discharge constitute.

Demarcation strip 5 is to be that the center is formed with certain thickness with bent axle 4, and is to be made of the convex surface r1 that possesses convex surface, the concave curved surface r2 that possesses concave surface, the curved surface r3 that is connected that connects convex surface r1 and concave curved surface r2 when seeing from the side.Both, demarcation strip 5 was whole waveform curved surfaces that form sine wave shape, and made its convex surface r1 and concave curved surface r2 form 180 ° phase difference.

And, demarcation strip 5 is the center with bent axle 4, on position arbitrarily during to radial cutting, the line of cut of bent axle 4 and demarcation strip 5 forms the right angle all the time, moves and the formation confined space sliding in state of the upper and lower inner side surface that contacts each bearing 3A, 3B so form the front end of the bent point in limit of convex surface r1 and concave curved surface r2.

1st, the

2nd blade

6A, 6B are inserted in blade groove (not shown) the lining slip on each bearing 3A, 3B, and

blade

6A, 6B form and possess certain thickness square shape as shown in Figure 2, it is formed by the rounded face that possesses certain camber with the surface of contact R1 that the waveform curved face part of demarcation strip 5 contacts, and the outer side surface R2 that contacts with the cylinder inner wall face is the convex surface formation of contact cylinder 2 inner side surfaces earlier, and the inner side surface F1 that contacts with bent axle 4 outer circumferential faces is formed by plane or concave surface (being the plane in the drawings) in contrast.

1st, the 2nd bearing unit 7A, 7B are by the 1st bearing support block 7b that is fastened on upper bearing 3A and lower bearing 3B and the 2nd bearing support block 7c, and are connected each bearing support block 7b, 7c and the 1st spring 7a of

support blade

6A, 6B and the 2nd spring 7d constitute separately.

Unaccounted symbol SP is a suction pipe among the figure.

As mentioned above, existing vane compressor work is as follows.

In motor, import power supply, rotor Mr rotates, the bent axle 4 and the demarcation strip 5 that are connected on the rotor Mr rotate to some directions together, at this moment, respectively with blade 6A, the 6B of demarcation strip 5 upper and lower contact both sides, carry out vertically and mutual reciprocal upper and lower to-and-fro motion along with the rotation of demarcation strip 5 on one side, thereby change the 1st space S 1 of cylinder and the volume of the 2nd space S 2.Meanwhile, the new cold media air suction pipe SP by cylinder 2 one sides continuously flows into 2 li of the 1st space S 1 and the 2nd space S.

At this moment as shown in Figure 3, the 1st blade 6A and the 2nd blade 6B are owing to contact bi-side at demarcation strip 5, quilt both direction promotion up and down and rising or decline when demarcation strip 5 rotations, but each

blade

6A, 6B be all by

spring

7a, 7d elastic support, is returned on the origin-location so pressed by

spring

7a, 7d when being connected the r3 of curved face part portion and also having concave curved surface r2 to contact through convex surface r1.

But in the vane compressor of above-mentioned prior art in order to make each

blade

6A, 6B always keep position itself, as above explanation need possess the 1st, the 2nd bearing unit 7A, 7B, so along with component number increases, assembling became complicated for number increase and assembling work when manufacture cost rose, so there is the low problem of manufacturing efficiency.

And, a little less than the elasticity of the 1st, the 2nd bearing unit 7A, 7B in, the reaction velocity of each

blade

6A, 6B is slack-off, so the phenomenon that pressurized gas leaks can take place; When the elasticity of the 1st, the 2nd bearing unit 7A, 7B is strong excessively in contrast owing to, so the phenomenon of friction loss can take place with the excessive pressure of demarcation strip 5.

Summary of the invention

So technical problem to be solved by this invention is to reduce amount of parts the hermetic type compressor that can enhance productivity even provide a kind of spring assembly of removing support blade that each blade is always kept with the contact condition of demarcation strip.

Another technical problem to be solved by this invention is to provide a kind of blade that makes always can contact on the bi-side of demarcation strip with suitable pressure, and can prevent in advance that pressurized gas from leaking or the hermetic type compressor of wearing and tearing.

The technical solution adopted in the present invention is: a kind of hermetic type compressor, comprise by for suction port and exhaust port being communicated with possess the cylinder assembly of inner space, the inner space of cylinder assembly is separated into a plurality of confined spaces and cylinder assembly is done relative motion and promotes the demarcation strip of each confined space inner fluid, contact and can slide thereon with the bi-side up and down of demarcation strip, be used to cut off each confined space inner fluid of cylinder assembly and the compressed plurality of vanes that has the magnetized portion of magnetic of fluid constituted.

According to hermetic type compressor of the present invention, it is additional magnetic body or blade all constituted with magnetic material in blade, therefore also can always be close on the demarcation strip so needn't possess other elastic member, reduce component number and can enhance productivity when can reduce production costs.And blade can prevent in advance that pressurized gas from leaking or wearing and tearing with suitable pressure contact on demarcation strip.

Description of drawings

Fig. 1 is the vertical section structure schematic representation of existing blade type hermetic type compressor;

Fig. 2 is the oblique drawing of blade in existing vane compressor;

Fig. 3 is the upper and lower reciprocating schematic representation of blade in existing vane compressor;

Fig. 4 is the vertical section structure schematic representation of hermetic type compressor of the present invention;

Fig. 5 is the oblique drawing of blade in the hermetic type compressor of the present invention;

Fig. 6 is the decomposing schematic representation of blade in the hermetic type compressor of the present invention;

Fig. 7 is the upper and lower reciprocating schematic representation of blade in the hermetic type compressor of the present invention;

Fig. 8 is the schematic representation of another embodiment of blade in the hermetic type compressor of the present invention.

Critical piece wherein:

20: demarcation strip 30,130: blade

31,131: blade body 31a: the rolling member insertion groove

32: rolling member 131a: magnetized portion

Embodiment

Below, the embodiment in describes hermetic type compressor of the present invention in detail in conjunction with the accompanying drawings.

Fig. 4 is the vertical section structure schematic representation of hermetic type compressor of the present invention; Fig. 5 is the oblique drawing of blade in the hermetic type compressor of the present invention; Fig. 6 is the decomposing schematic representation of blade in the hermetic type compressor of the present invention; Fig. 7 is the upper and lower reciprocating schematic representation of blade in the hermetic type compressor of the present invention.

As shown in the figure, hermetic type compressor of the present invention comprises by the cylinder assembly 10 that is fixed on 1 li of housing, can be arranged on 10 li of cylinder assemblies rotatably, and the inner space V of cylinder assembly 10 is separated into the 1st airtight space S 1 and the demarcation strip 20 of the 2nd space S 2, be crimped on the two sides of demarcation strip 5 and block the 1st blade 30 and the 2nd blade 30 that cold media air moves and constitute.

Cylinder assembly 10 is an annular, and by the cylinder 11 that is formed with a suction port 11a who is communicated with both sides space S 1, S2 in a side, be fixedly installed on the both sides up and down of cylinder 11 and constitute with upper bearing 12 and lower bearing 13 that cylinder 11 forms inner space V.

It is that the center possesses certain thickness circle that demarcation strip 20 forms with bent axle 4, and see from the side, demarcation strip is by the convex surface r1 that possesses convex surface, differs 180 ° and possess the concave curved surface r2 of concave surface with convex surface r1, and the curved face part r3 that is connected that connects convex surface r1 and concave curved surface r2 forms.

1st, the 2nd blade 30 is by the blade body 31 that possesses certain thickness square shape, inboard at the surface of contact of each blade body 31 that contacts with the waveform curved face part of demarcation strip 20, insertion has the rolling member 32 of magnetic and constitutes, even and make it not use other elastic member that the 1st, the 2nd blade 30 is always contacted on demarcation strip 20.

For this reason, pressing width direction in the inside of each blade body 31 lower end, is the rolling member insertion groove 31a of circular arc section shape when being formed with side projection, and the center of rolling member insertion groove 31a, is positioned at the position higher than the underpart of blade body 31.

Rolling member 32 is the shape of circular section when side projection, and the internal diameter of its diameter and rolling member insertion groove 31a is identical and be pressed in the rolling member insertion groove 31a, and is perhaps little and be combined in revolvably in the insertion groove 31a than the internal diameter of rolling member insertion groove 31a.

The blade body 31 of each blade 30 is all made with magnetic material, perhaps as shown in Figure 8, the surface of contact that the blade body 131 of each blade 130 contacts with curved surface on the demarcation strip 20, magnetizes and forms magnetized portion 131a.

Identical symbol has been used at identical with the prior art structure in the drawings position.

Unaccounted symbol F1 is the bent axle surface of contact among the figure, and R1 is the demarcation strip surface of contact, and R2 is the cylinder surface of contact, and SP is a suction pipe.

Hermetic type compressor working procedure of the present invention is as follows.

Import power supply in motor, rotor Mr and bent axle 4 rotate, and demarcation strip 20 one sides that are connected on the bent axle 4 are rotated at the inner space of cylinder 11 V, and one side sucks cold media air by suction pipe 11a for 2 li in turn to the 1st space S 1 and the 2nd space S.At this moment cold media air continues in the rotary courses at demarcation strip 20, and after upper and lower blade 30 compressions, the exhaust port (not shown) by each space S 1, S2 discharges in turn.

Here, upper and lower blade 30 when demarcation strip 20 rotation, successively through the convex surface r1 of demarcation strip 20 be connected curved face part r3 and concave curved surface r2, axially pump.At this moment, as Fig. 5 and shown in Figure 6, in the surface of contact of the upper and lower blade body 31 that contacts with the waveform curved surface of demarcation strip 20, be pressed into or can insert the rolling member 32 that has magnetic rotatably.Perhaps as shown in Figure 8, the surface of contact that the blade body 131 of upper and lower blade 30 is contacted with demarcation strip magnetizes, or upper and lower blade body 31 all magnetized and forms magnetized portion 131a.

So as shown in Figure 7, rolling member 32 or blade body 31,131 can always be kept waveform curved surface state of contact with demarcation strip 20 by magnetic force.Even because the inertia of upper and lower blade body 31 breaks away from demarcation strip 20, recover waveform curved surface state of contact with demarcation strip 20 as soon as possible owing to magnetic force can make it, and pump.

From the above mentioned, the present invention needn't be provided with elastic member at the upside of blade also can make each blade always be close on the demarcation strip, also can restore to the original state moment and pump even break away from.So when elastic member being set with needs mutually specific energy reduce amount of parts, therefore reduce production costs and reduce assembling and can enhance productivity for number.

And each blade always can be with the contact of suitable pressure on the bi-side of demarcation strip, and can prevent from advance to break away from the pressurized gas leakage that causes or by too being close to the frictional loss that causes by each blade and demarcation strip.

Claims

1. hermetic type compressor, comprise and promisingly suction port and exhaust port are communicated with and possess the cylinder assembly (10) of inner space, the inner space of cylinder assembly (10) is separated into a plurality of confined spaces, and cylinder assembly done relative motion and promote the demarcation strip (20) of each confined space inner fluid, it is characterized in that, also be provided with and contact with the bi-side up and down of demarcation strip (20) and can slide thereon, be used to cut off each confined space inner fluid of cylinder assembly (10) and make fluid compressed, the plurality of vanes (30) that has magnetic magnetized portion (131a) constitutes.

2. hermetic type compressor according to claim 1, its spy is, described magnetized portion (131a) is by being formed with rolling member accepting groove (31a) on the terminal of each blade (30) that contacts with demarcation strip (20), and inserts the rolling member (32) that is made of magnetic material to rolling member accepting groove (31a) lining and constitute.

3. hermetic type compressor according to claim 2, it is characterized in that, described rolling member (32) is to form with the circular arc section, and the inside that is centered close to the terminal that blade (30) contacts with demarcation strip (20) of described rolling member accepting groove (31a).

4. hermetic type compressor according to claim 1 is characterized in that, described magnetized portion (131a) is that whole magnetization of each blade (30) formed.

5. hermetic type compressor according to claim 1 is characterized in that, described magnetized portion (131a) is the part of each blade (30) is magnetized and to form one.