CN202176511U

CN202176511U - Slip sheet of rotary type compressor, rotary type compressor and air conditioner

Info

Publication number: CN202176511U
Application number: CN2011203048574U
Authority: CN
Inventors: 余冰; 王伟
Original assignee: Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Current assignee: Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2012-03-28
Anticipated expiration: 2021-08-19

Abstract

The utility model provides a slip sheet of a rotary type compressor, a rotary type compressor and an air conditioner, wherein the slip sheet of the rotary type compressor includes a first end part and a second end part, the first end part is a spring propping part, and exhaust notches (21) facing to the periphery of a compression cavity of the rotary type compressor are arranged at the second end part. Through adopting the technical scheme provided by the utility model, the slip sheet can delay the exhaust termination time, reduces the volume of the residual high pressure gas, can improve the actual output gas of the compressor and the volume efficiency of the compressor, and reduce the gas repeat compression consumption, thereby improving the energy efficiency ratio of the compressor.

Description

The slide plate of rotary compressor, rotary compressor and air conditioner

Technical field

The utility model relates to compressor field, in particular to a kind of slide plate, rotary compressor and air conditioner of rotary compressor.

Background technique

Advantages such as rotary compressor is simple in structure owing to it, volume is little, operate steadily are widely used, especially in family expenses air condition compressor field.

The working principle of rotary compressor is as shown in Figure 1, and suction port 50 ' and exhaust otch 21 ' are arranged on the circular cylinder, on cylinder head and exhaust otch 21 ' corresponding position be provided with exhaust port, valve block is housed on the exhaust port.Between cylinder suction port 50 ' and exhaust otch 21 ', be provided with a vane slot 30 ', the slide plate 20 ' that can radially slide is housed in this vane slot 30 ', spring 60 ' is pressed in slide plate 20 ' on the surface of rotor 40 '.Slide plate 20 ' is separated into two-part with the crescent-shaped space between rotor 40 ' and the cylinder: air aspiration cavity and compression chamber, rotor 40 ' is installed on the eccentric part of bent axle.

Bent axle (offset is e) rotates under the drive of motor, and the axle center a1 of rotor 40 ' (radius is r) rotates around the axle center a of cylinder (radius is R); The outer wall of rotor 40 ' rolls along cylinder inner wall, and rotor 40 ' is also around its axle center rotation simultaneously.When rotor 40 ' surpassed the suction port position with the cylinder Line of contact, breathing process began; When Line of contact arrived the vane slot position of center line, aspirated volume was maximum; Rotor 40 ' is rotated further, and when surpassing suction port once more, the compression intracavity gas begins to be compressed; When gas pressure in the compression chamber reached outlet pipe pressure, exhaust began; When Line of contact arrived exhaust otch lower limb, exhaust process finished.At this moment, rotor 40 ' distance also differs a very little angle topmost, also has certain volume in the compression chamber, the clearance volume of Here it is compressor.Residual pressurized gas will expand and get into air aspiration cavity in the clearance volume, make the compressor actual output of gas reduce, and portion gas is repeated compression, and then influence the Energy Efficiency Ratio of compressor.

In addition, the shortcoming of rotary compressor also has between slide plate 20 ' and the vane slot 30 ' friction and wear bigger, has limited the raising of the operating life and the efficient of rotary compressor.In order to guarantee that slide plate 20 ' can slide smoothly, between slide plate 20 ' and the vane slot 30 ' certain clearance is arranged usually, during compressor operating, slide plate 20 ' is in heeling condition under two gas to chamber action of pressure of cylinder, as shown in Figure 2.At the M and the N place of vane slot 30 ', slide plate will bear tilting action power F _M' and F _N', making slide plate 20 ' and vane slot 30 ' contacting point (M, N place) fretting wear increase, the compressor wasted work increases, and then the efficiency that has influenced compressor reliability when.

The model utility content

The utility model aims to provide a kind of slide plate, rotary compressor and air conditioner that can effectively reduce clearance volume and then improve the rotary compressor of compressor Energy Efficiency Ratio.

To achieve these goals; According to an aspect of the utility model, a kind of slide plate of rotary compressor is provided, comprising: first end and the second end; First end is the spring abutting part, and the second end is provided with the exhaust otch towards the periphery of the compression chamber of rotary compressor.

Further, the curved or polygonal of edge portion of exhaust otch.

Further, the surface of exhaust otch is spherical calotte or part cylndrical surface.

Another aspect according to the utility model provides a kind of rotary compressor, comprising: cylinder; Spring eye is arranged on the cylinder, is used to hold spring; Rotor, eccentric rotation in cylinder; Vane slot is arranged on the cylinder, is communicated with spring eye; Intakeport is arranged on the cylinder, and rotary compressor also comprises: above-mentioned slide plate, slide plate be arranged in the vane slot and with the rotor butt.

Further, slide plate is divided into air aspiration cavity and compression chamber with the space between cylinder and the rotor; Vane slot departs from the center line setting of cylinder, and, vane slot away from an end of spring eye towards compression chamber.

Further, the center line of vane slot and the center line of cylinder have offset or dish, and offset or dish is less than the offset of the bent axle that drives rotor.

Further, form the biasing angle between the center line of the center line of vane slot and spring eye.

Further, the biasing angle is less than or equal to 10 °.

Further, the biasing angle is more than or equal to 3 ° and smaller or equal to 5 °.

Another aspect according to the utility model provides a kind of air conditioner, has rotary compressor, and rotary compressor is above-mentioned rotary compressor.

Use the technological scheme of the utility model, the exhaust otch is arranged on the slide plate of rotary compressor, be specially and be arranged on the second end on the periphery of compression chamber.Compare with the exhaust otch that existing technology is arranged on the cylinder; But the technological scheme delayed exhaust of the utility model finishes the angle; Make residual pressurized gas volume reducing, can improve the compressor actual output of gas, improve compressor volume efficient; Reduce gas repeated compression wasted work, and then promote the Energy Efficiency Ratio of compressor.

Description of drawings

The Figure of description that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:

Fig. 1 shows the working principle schematic representation of rotary compressor of the prior art;

Fig. 2 shows slide plate heeling condition schematic representation when work of rotary compressor of the prior art;

The master that Fig. 3 shows according to the embodiment of the slide plate of the rotary compressor of the utility model looks schematic representation;

Fig. 4 shows the schematic side view of slide plate among Fig. 3;

Fig. 5 show slide plate among Fig. 3 schematic perspective view;

Fig. 6 shows the cross-sectional structure schematic representation according to the embodiment of the rotary compressor of the utility model; And

Fig. 7 shows the structural representation of the vane slot of rotary compressor among Fig. 6.

Embodiment

Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.

The master that Fig. 3 shows according to the embodiment of the slide plate of the rotary compressor of the utility model looks schematic representation; Fig. 4 shows the schematic side view of slide plate among Fig. 3.In conjunction with referring to Fig. 3 to Fig. 4, as can be seen from the figure, the slide plate 20 of the rotary compressor of present embodiment comprises: first end and the second end, first end are the spring abutting part, and the second end is provided with exhaust otch 21 towards the periphery of compression chamber 12.Compare with the exhaust otch that existing technology is arranged on the cylinder; But the technological scheme delayed exhaust of present embodiment finishes the angle; Make residual pressurized gas volume reducing, can improve the compressor actual output of gas, improve compressor volume efficient; Reduce gas repeated compression wasted work, and then promote the Energy Efficiency Ratio of compressor.

In rotary compressor; Big slightly with the general diameter of exhaust otch 21 corresponding flange exhaust ports, in general, guarantee at extraction flow constantly big; Exhaust otch 21 is corresponding with exhaust port; At extraction flow hour, even exhaust otch 21 can not align with exhaust port, little to the influence of flowing.

For the those of ordinary skill in this field, the shape of exhaust otch 21, size and location all can be optimized design according to the discharge capacity of rotary compressor, air cylinder structure, slide vane structure etc.Preferably, the curved or polygonal of edge portion of exhaust otch 21.Preferably, as shown in Figure 5, the surface of exhaust otch 21 is spherical calotte, and perhaps preferably, the surface of exhaust otch 21 is part cylndrical surface (not shown).

The utility model also provides a kind of rotary compressor; Fig. 6 shows the cross-sectional structure schematic representation according to the embodiment of the rotary compressor of the utility model; As shown in Figure 6; As can be seen from the figure, the rotary compressor of present embodiment comprises: cylinder 10, spring eye 61, rotor 40, vane slot 30, intakeport 50, spring (not shown) and slide plate 20.Wherein, Rotor 40 is eccentric rotation in cylinder 10; Spring is arranged in the spring eye 61 of cylinder; Slide plate 20 is reciprocating in the vane slot 30 at cylinder 10 under the effect of rotor 40 and spring, and vane slot 30 is communicated with spring eye 61, and slide plate 20 is divided into air aspiration cavity 11 and compression chamber 12 with the space between cylinder 10 and the rotor 40.Simultaneously, this slide plate 20 comprises: first end and the second end, first end are the spring abutting part, and the second end is provided with exhaust otch 21 towards the periphery of compression chamber.

But the technological scheme delayed exhaust of present embodiment finishes the angle, makes residual pressurized gas volume reducing, can improve the compressor actual output of gas, improves compressor volume efficient, reduces gas repeated compression wasted work, and then promotes the Energy Efficiency Ratio of compressor.

In order to reduce frictional loss between slide plate 20 and the vane slot 30, in a kind of preferred embodiment, in the cross section of cylinder, the centre line L 1 that vane slot 30 departs from cylinder 10 is provided with, and, vane slot 30 away from an end of spring eye towards compression chamber 12.

In the present embodiment, as shown in Figure 7, receive the directed force F of rotor 40 in slide plate 20 work _KWith acting force of the spring F _SActing in conjunction, the departing from setting and can reduce the pressure F between slide plate 20 and the vane slot 30 of vane slot 30 _MWith F _NSo, can reduce the fretting wear between slide plate 20 and the vane slot 30, help to improve the Energy Efficiency Ratio of compressor reliability and complete machine.

Specifically, in the cross section of cylinder, the directed force F of 40 pairs of slide plates 20 of rotor _KDiminish with slide plate 20 center line angles, thereby reduce F _KInfluence to the slide plate inclination.On the other hand, acting force of the spring F _SThe direction and the Fg that slide plate are produced moment produce the in the opposite direction of moment to slide plate, so F in the present embodiment _SWeakened gas force F _gThe heeling moment that slide plate is applied, and in the scheme of existing technology, as shown in Figure 2, F _S' slide plate produced the direction and the F of moment _g' identical to the direction of slide plate generation moment.Therefore, present embodiment can effectively reduce the pressure between M and N place slide plate 20 and the vane slot 30, thereby improves the fretting wear at this two place.

Preferably, as shown in Figure 6, in the cross section of cylinder, have offset or dish L between the centre line L 2 of vane slot 30 and the centre line L 1 of cylinder, this offset or dish L is less than the offset of the bent axle that drives rotor 40.

Preferably, in the cross section of cylinder, form biasing angle β between the centre line L 2 of vane slot 30 and the centre line L 3 of spring eye 61.The big I of the value of this biasing angle β is optimized design according to the structure of cylinder, and preferably, this biasing angle β is less than or equal to 10 °.Further preferably, biasing angle β is more than or equal to 3 ° and smaller or equal to 5 °.Preferably, the centre line L 3 of spring eye 61 overlaps with the centre line L 1 of cylinder 10.

The utility model also provides a kind of air conditioner, has rotary compressor, and rotary compressor is above-mentioned rotary compressor.The air conditioner of the utility model can effectively reduce clearance volume, reduces frictional loss between slide plate and the vane slot, improve rotary compressor reliability and Energy Efficiency Ratio.

The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. the slide plate of a rotary compressor comprises: first end and the second end, and said first end is the spring abutting part, it is characterized in that, said the second end is provided with exhaust otch (21) towards the periphery of the compression chamber (12) of said rotary compressor.

2. slide plate according to claim 1 is characterized in that, the curved or polygonal of edge portion of said exhaust otch (21).

3. slide plate according to claim 2 is characterized in that, the surface of said exhaust otch (21) is spherical calotte or part cylndrical surface.

4. rotary compressor comprises:

Cylinder (10);

Spring eye (61) is arranged on the said cylinder (10), is used to hold spring;

Rotor (40), eccentric rotation in said cylinder (10);

Vane slot (30) is arranged on the said cylinder (10), is communicated with said spring eye (61);

Intakeport (50) is arranged on the said cylinder (10),

It is characterized in that said rotary compressor also comprises:

According to each described slide plate (20) in the claim 1 to 3, said slide plate (20) be arranged in the said vane slot (30) and with said rotor (40) butt.

5. rotary compressor according to claim 4 is characterized in that, said slide plate (20) is divided into air aspiration cavity (11) and said compression chamber (12) with the space between said cylinder (10) and the said rotor (40); The center line (L1) that said vane slot (30) departs from said cylinder (10) is provided with, and, said vane slot (30) away from an end of said spring eye (61) towards said compression chamber (12).

6. rotary compressor according to claim 5; It is characterized in that; The center line (L2) of said vane slot (30) has offset or dish (L) with the center line (L1) of said cylinder (10), and said offset or dish (L) is less than the offset of the bent axle that drives said rotor (40).

7. rotary compressor according to claim 5 is characterized in that, forms biasing angle (β) between the center line (L2) of said vane slot (30) and the center line (L3) of said spring eye (61).

8. rotary compressor according to claim 7 is characterized in that, said biasing angle (β) is less than or equal to 10 °.

9. rotary compressor according to claim 7 is characterized in that, said biasing angle (β) is more than or equal to 3 ° and smaller or equal to 5 °.

10. an air conditioner has rotary compressor, it is characterized in that, said rotary compressor is each described rotary compressor in the claim 4 to 9.