CN214145893U

CN214145893U - Movable scroll of compressor, air conditioner and vehicle

Info

Publication number: CN214145893U
Application number: CN202120063688.3U
Authority: CN
Inventors: 李奎林; 吕浩福; 李凤
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-09-07
Anticipated expiration: 2031-01-11

Abstract

The utility model provides a movable scroll plate of a compressor, the compressor, an air conditioner and a vehicle, wherein the movable scroll plate comprises a base body and scroll teeth, an internal channel is formed in the movable scroll plate, and the internal channel comprises a first channel part and a second channel part; the first channel part is formed in the base body, the first channel part is communicated with the bearing mounting position on the base body, the second channel part is formed in the scroll wrap, and the second channel part is communicated between the first channel part and the tooth crest of the scroll wrap. The compressor includes a orbiting scroll. The air conditioner includes a compressor. The vehicle includes an air conditioner. When the movable scroll plate is installed between the fixed scroll plate and the support, and the movable disc bearing is installed at the bearing installation position, the second channel part, the first channel part, the movable disc bearing and the backpressure cavity are sequentially communicated to form a new oil return channel, so that the problem of insufficient lubrication of a key moving part and a key movement matching part is solved, and the radial leakage rate of gas between the movable scroll plate and the fixed scroll plate is reduced.

Description

Movable scroll of compressor, air conditioner and vehicle

Technical Field

The utility model relates to a compressor technical field, concretely relates to compressor move vortex dish, compressor, air conditioner and vehicle.

Background

Chinese utility model patent of patent number cn201821764270.x discloses a scroll compressor, this scroll compressor have the induction port that communicates in proper order, inhale the chamber, compress the chamber, exhaust chamber, oil return channel and back pressure chamber, back pressure chamber are equipped with the pressure release passageway that communicates to the chamber of breathing in, are equipped with the pressure relief device who is used for opening or closing this pressure release passageway in the pressure release passageway, and when the oil pressure in back pressure chamber was greater than the default, pressure relief device started, and pressure release passageway is opened in order to realize the pressure release.

The oil return effect of the existing scroll compressor is insufficient, and the service life of the compressor is short due to insufficient lubrication of key moving parts and key moving matching parts, such as the matching part of a movable disc bearing and a movable scroll plate on a fixed scroll plate.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a strengthen oil return effect and improve the vortex dish that moves of lubricated effect of spare part and cooperation department.

A second object of the utility model is to provide a strengthen oil return effect and improve the compressor of the lubricated effect of spare part and cooperation department.

A third object of the present invention is to provide an air conditioner with an extended service life.

A fourth object of the present invention is to provide a vehicle having the above air conditioner.

The utility model discloses the first purpose provides a compressor moves the scroll and includes base member and vortex tooth, and the base member has relative first side and second side in the axial, and the vortex tooth is protruding in first side, and the second side forms bearing installation position; an inner channel is formed in the movable scroll plate and comprises a first channel part and a second channel part; the first channel part is formed in the base body and communicated with the bearing mounting position; the second channel portion is formed in the scroll wrap, and the second channel portion is communicated between the first channel portion and the tooth crest of the scroll wrap.

It can be seen by above-mentioned scheme that, when moving the scroll and installing in the compressor and being located between quiet scroll and the support, and movable disk bearing installs the bearing installation position after, second passageway portion, first passageway portion, movable disk bearing and back pressure chamber communicate in proper order and constitute new oil return channel, oil-gas complex can not only reach movable disk bearing department and lubricate, can also reach between vortex tooth top and the quiet scroll through first passageway portion and second passageway portion in proper order and lubricate and improve the leakproofness, the not only technical problem of the lubrication insufficiency of key moving part and key motion cooperation department has been solved, still reduced the radial leakage rate of gas between moving the scroll and the quiet scroll.

The second side forms a rotation stopping piece matching position; the second channel part, the first channel part and the rotation stopping piece matching position are communicated in sequence, or the second channel part, the rotation stopping piece matching position and the first channel part are communicated in sequence.

It can be seen from above that, be provided with on the support of compressor and spline the piece, spline the piece and be the steel round pin, spline the piece and be used for the restriction to move the turned angle of vortex dish, move the vortex dish when moving, the outer peripheral face that splines the piece and fix the steel ring contact cooperation on the piece cooperation position inner wall that splines. Therefore, the arrangement can lubricate the rotation stopping piece and the steel ring, and further prolong the service life of the compressor.

The tooth top is provided with a sealing piece mounting groove, and the second channel part is communicated to the sealing piece mounting groove.

From the above, it can be seen that the seal mounting slot is adapted to receive a seal adapted to cooperate with a surface of the fixed scroll to improve sealing. And move the radial leakage gas between vortex dish and the static vortex dish and can form good sealed effect and reduce the leakage rate with the sealing member jack-up after getting into the sealing member mounting groove and further with the surperficial butt of static vortex dish, gaseous second passageway portion, first passageway portion and movable disc bearing entering backpressure chamber and promote the backpressure effect and improve compressor performance afterwards, reduce compressor power.

It is further provided that the first channel section extends in a straight line and/or that the second channel section extends in a straight line.

In a further aspect, the first passage portion extends in a radial direction of the orbiting scroll, and the second passage portion extends in an axial direction of the orbiting scroll.

Therefore, the arrangement can reduce the processing difficulty and reduce the loss along the way.

Further, the first passage portion communicates to the outer periphery of the base body.

Therefore, the oil-gas mixture can enter the first channel part from the periphery of the base body after passing through the air suction cavity, then enters the back pressure cavity through the dynamic disc bearing, and then enters the air suction cavity through a gap formed between the driven scroll disc and the support in the pressure relief process, so that the lubrication of the bearing is improved, the noise vibration is reduced, and the service life is prolonged.

Further, a plurality of first channel portions are formed in the base body and arranged along the circumferential direction of the base body, and the plurality of first channel portions are intersected in the center of the base body.

Therefore, the arrangement not only lubricates the positions of the rotation stopping pieces, but also can further increase the oil return amount to improve the back pressure effect.

The utility model discloses the compressor that the second purpose provided moves the vortex dish and adopts foretell vortex dish including moving the vortex dish.

The compressor also comprises a support and a movable disc bearing; the supports are all fixed in the compressor, and the movable disc bearing is arranged on the bearing mounting position; a back pressure cavity is formed between the support and the movable scroll plate, and the first channel part, the movable disc bearing and the back pressure cavity are communicated in sequence.

As can be seen, this arrangement provides a ring of oil return passages for the movable plate bearings to provide lubrication to the movable plate bearings.

The further proposal is that a rotation stopping piece is arranged on the support and limits the movable scroll; the first passage portion is communicated to a position where the rotation stopper is located.

Therefore, the arrangement enables the oil return channel to be communicated with the position of the rotation stopping piece, and ensures the lubrication degree of the matching position of the rotation stopping piece.

The compressor further comprises a fixed scroll, the movable scroll and the fixed scroll are arranged oppositely and movable relative to the fixed scroll, and a compression cavity is formed between the movable scroll and the fixed scroll.

In a further aspect, the compressor further includes a seal disposed between the tooth crest of the wrap and the fixed scroll, the seal blocking the second passage portion.

From the above, it can be seen that the seal is adapted to cooperate with a surface of the fixed scroll to improve sealing. And move the radial leakage gas between vortex dish and the static vortex dish and can form good sealed effect and reduce the leakage rate with the sealing member jack-up after getting into the sealing member mounting groove and further with the surperficial butt of static vortex dish, gaseous second passageway portion, first passageway portion and movable disc bearing entering backpressure chamber and promote the backpressure effect and improve compressor performance afterwards, reduce compressor power.

The further proposal is that a suction cavity, a compression cavity, an exhaust cavity, an oil return channel and a back pressure cavity which are communicated in sequence are formed in the compressor.

The third objective of the present invention is to provide an air conditioner, which comprises a compressor, wherein the compressor adopts the above compressor.

The utility model discloses the vehicle that the fourth purpose provided includes the air conditioner, and the air conditioner adopts foretell air conditioner.

Drawings

Fig. 1 is a sectional view of an embodiment of the compressor of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a sectional view of a movable scroll in an embodiment of the compressor of the present invention.

Fig. 4 is a first view angle diagram of the orbiting scroll in the embodiment of the compressor of the present invention.

Fig. 5 is a second view angle diagram of the movable scroll in the embodiment of the compressor of the present invention.

Figure 6 is a block diagram of an orbiting scroll assembly in an embodiment of the compressor of the present invention.

Detailed Description

Referring to fig. 1 and 2, fig. 1 is a sectional view of an embodiment of a compressor according to the present invention, and fig. 2 is an enlarged view of a portion a of fig. 1. The utility model provides an in-vehicle is provided with the air conditioner, the air conditioner includes the utility model discloses a compressor, compressor are scroll compressor. The compressor includes shell 7 and the setting moves vortex dish 1, quiet vortex dish 2, driving disk bearing 3, support 4, pivot bearing 5 and pivot 6 in shell 7, and support 4 and quiet vortex dish 2 are fixed to be set up, and pivot 6 rotationally connects on support 4 through pivot bearing 5, and pivot 6 is rotatory by motor element drive, still seals through the seal cover between pivot 6 and the support 4.

The movable scroll 1 is movably installed between the fixed scroll 2 and the support 4, and the end of the rotating shaft 6 is rotatably connected with the movable scroll 1 through the movable disc bearing 3. One side of the support 4 facing the movable scroll 1 is provided with a wear-resistant sheet and is fixedly provided with a steel pin 41, the movable scroll 1 is provided with a rotation stopping member matching position 14, a steel ring 18 is fixed in the rotation stopping member matching position 14, and the steel pin 41 is limited in the steel ring 18 as a rotation stopping member. Because the rotating shaft 6 is an eccentric shaft, after the motor assembly drives the rotating shaft 6 to rotate, the movable scroll 1 makes a circular motion relative to the fixed scroll 2 under the matching of the steel ring 18 and the steel pin 41.

The compressor is provided with an air suction port 91 and an air discharge port 95, and an air suction chamber 92, a compression chamber 93, an air discharge chamber 94, an oil return passage 96 and a back pressure chamber 97 are formed in the compressor. The suction chamber 92 is formed outside the support 4; the compression chamber 93 is formed between the orbiting scroll 1 and the fixed scroll 2; the discharge chamber 94 is formed outside the fixed scroll 2; the oil return passage 96 includes a third passage portion 961 provided in the fixed scroll 2 and a fourth passage portion 962 provided on the mount 4; a back pressure chamber 97 is formed in the holder 4 between the rotary shaft bearing 5 and the movable disc bearing 3.

The suction port 91, the suction chamber 92, the compression chamber 93, the discharge chamber 94, and the discharge port 95 are sequentially communicated, and the suction port 91, the suction chamber 92, the compression chamber 93, the discharge chamber 94, the oil return passage 96, and the back pressure chamber 97 are sequentially communicated. In the operation process of the compressor, an oil-gas mixture enters the air suction cavity 92 through the air suction port 91 and then enters the exhaust cavity 94 through the compression cavity 93, oil and gas are separated through the oil separator, and gas forms system circulation through the exhaust port 95; due to the action of gravity, the refrigerant oil is accumulated at the bottom of the exhaust cavity 94, the refrigerant oil enters the back pressure cavity 97 through the oil return channel 96, when the internal pressure of the back pressure cavity 97 exceeds the axial force of the movable scroll 1, the movable scroll 1 moves a certain distance away from the back pressure cavity 97 to form a certain gap between wear-resistant sheets on the support 4, and the refrigerant oil enters the air suction cavity 92 through the gap, so that the internal lubricating circulation system of the compressor is formed.

Referring to fig. 2 to 5, fig. 3 is a cross-sectional view of the movable scroll in the embodiment of the compressor of the present invention, fig. 4 is a structural diagram of a first visual angle of the movable scroll in the embodiment of the compressor of the present invention, and fig. 5 is a structural diagram of a second visual angle of the movable scroll in the embodiment of the compressor of the present invention. The utility model provides a set up internal channel 15 and constitute new oil return passage in order to improve lubricated effect and promote the backpressure effect in moving vortex dish 1. The movable scroll 1 includes a base 11 and a wrap 12, the base 11 is a disk-shaped portion, and the wrap 12 is a portion that protrudes in the axial direction and extends along an involute of a circle. The base 11 has axially opposite first and

second sides

101 and 102, the wrap 12 projecting from the first side 101, the wrap 12 having a root 128 adjacent the base 11 and a tip 129 remote from the base 11.

The base body 11 is provided with a bearing mounting location 13 and a rotation stop mating location 14 on the second side 102. The bearing installation position 13 is located in the middle of the second side 102, the rotation stopping part matching position 14 is a circular concave position, and the rotation stopping part matching positions 14 are circumferentially arranged on the periphery of the bearing installation position 13. The orbiting scroll 1 has an inner passage 15 formed therein, and the inner passage 15 includes a first passage portion 151 and a second passage portion 152. The first passage portion 151 is formed in the base 11, and the second passage portion 152 is formed in the wrap 12.

The first plurality of passage portions 151 extend in the radial direction of the movable scroll 1, inner end portions of the first plurality of passage portions 151 communicate with the center 100 (shown in fig. 4) of the base 11, and outer end portions of the first plurality of passage portions 151 communicate with the outer periphery 111 (shown in fig. 2) of the base 11. In addition, each first channel part 151 is communicated with the rotation stopping piece matching position 14.

The spiral wrap 12 is provided with a plurality of second channel portions 152, and referring to fig. 2, a part of the second channel portions 152 extends between the tooth crest 129 of the spiral wrap 12 and the first channel portion 151 in the axial direction of the movable scroll 1, that is, the second channel portions 152, the first channel portion 151 and the rotation stopping member fitting portion 14 are sequentially communicated; referring to fig. 3, another part of the second channel portion 152 communicates between the tooth tip 129 of the wrap 12 and the rotation stopper fitting portion 14 in the axial direction of the orbiting scroll 1, that is, the second channel portion 152, the rotation stopper fitting portion 14, and the first channel portion 151 communicate in this order.

The tooth top 129 is provided with a sealing member mounting groove 16, the cross-sectional profile of the sealing member mounting groove 16 is square, the sealing member mounting groove 16 extends along the involute of a circle along the scroll 12, the second channel portion 152 communicates with the groove bottom surface of the sealing member mounting groove 16, and the width of the sealing member mounting groove 16 is greater than the inner diameter of the second channel portion 152. In addition, as can be seen from fig. 4, on the axial projection of the orbiting scroll 1, the plurality of second channel portions 152 are located in one rotation stopper fitting portion 14.

Referring to fig. 6, fig. 6 is a structural diagram of the orbiting scroll assembly according to the embodiment of the present invention. The movable scroll group comprises a movable scroll 1, a sealing piece 19, a movable disc bearing 3 and a steel ring 18. The movable disc bearing 3 is fixed in the bearing installation position 13, and the steel ring 18 is fixed on the inner wall surface of the rotation stopping member matching position 14. The sealing member 19 is made of teflon, the sealing member 19 extends along the involute of a circle, the width of the sealing member 19 is slightly smaller than that of the sealing member mounting groove 16, and the sealing member 19 is mounted in the sealing member mounting groove 16 and blocks the second channel portion 152.

Referring to fig. 1 and 2 again, the second channel portion 152, the first channel portion 151, the movable disc bearing 3, the back pressure chamber 97 and the rotating shaft bearing 5 are sequentially communicated to form a new oil return channel, the oil-gas compound can reach the movable disc bearing 3 and the rotating shaft bearing 5 for lubrication, and can also reach the position between the tooth crest 129 of the scroll tooth 12 and the fixed scroll 2 through the first channel portion 151 and the second channel portion 152 for lubrication and sealing improvement, the matching position of the base 11 and the wear-resistant piece of the support 4 is lubricated, and the matching position of the steel pin 41 and the steel ring 18 is also lubricated. Therefore, the new oil return passage is formed, the technical problem of insufficient lubrication at the matching part of the key moving part and the key moving part is solved, the service life of the compressor is prolonged, and the problem of noise can be solved.

In addition, after the radial leakage gas between the movable scroll 1 and the fixed scroll 2 enters the sealing element mounting groove 16, the sealing element 19 can be jacked up to further abut against the surface of the fixed scroll 2 to form a good sealing effect so as to reduce the leakage rate, and then the gas enters the back pressure cavity 97 through the second channel part 152, the first channel part 151 and the movable disc bearing 3 so as to improve the back pressure effect and improve the performance of the compressor and reduce the power of the compressor.

In addition, the oil-gas mixture can enter the first channel part 151 from the periphery 111 of the base body 11 after passing through the air suction cavity 92, then enter the back pressure cavity 97 through the disc bearing 3, and then enter the air suction cavity 92 through a gap formed between the driven scroll 1 and the support 4 in the pressure relief process, so that the lubricating effect is improved, the noise vibration is reduced, and the service life is prolonged.

In other embodiments, the number of the first channel portions is one, and the number of the second channel portions is one.

In other embodiments, the first channel portion extends in a straight line but is inclined to a radial direction of the orbiting scroll, and the second channel portion extends in a straight line but is inclined to an axial direction of the orbiting scroll.

Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.

Claims

1. The movable scroll plate of the compressor comprises a base body and a scroll wrap, wherein the base body is provided with a first side and a second side which are opposite in the axial direction, the scroll wrap protrudes from the first side, and the second side forms a bearing mounting position;

the method is characterized in that:

an inner passage is formed in the orbiting scroll, and the inner passage includes a first passage portion and a second passage portion;

the first channel part is formed in the base body and communicated with the bearing mounting position;

the second channel portion is formed in the scroll wrap, and the second channel portion is communicated between the first channel portion and a tooth crest of the scroll wrap.

2. The orbiting scroll of a compressor according to claim 1, wherein:

the second side forms a rotation stopping piece matching position;

the second channel part, the first channel part and the rotation stopping piece are communicated in sequence,

or the like, or, alternatively,

the second channel part, the rotation stopping piece matching position and the first channel part are communicated in sequence.

3. The orbiting scroll of a compressor according to claim 1 or 2, wherein:

the tooth top is provided with a sealing member mounting groove, and the second channel portion is communicated to the sealing member mounting groove.

4. The orbiting scroll of a compressor according to claim 1 or 2, wherein:

the first channel portion extends in a straight line and/or the second channel portion extends in a straight line.

5. The orbiting scroll of a compressor according to claim 4, wherein:

the first passage portion extends in a radial direction of the movable scroll, and the second passage portion extends in an axial direction of the movable scroll.

6. The orbiting scroll of a compressor according to claim 1 or 2, wherein:

the first passage portion communicates to an outer periphery of the base.

7. The orbiting scroll of a compressor according to claim 1 or 2, wherein:

a plurality of first channel parts are formed in the base body and arranged along the circumferential direction of the base body, and the first channel parts are intersected in the center of the base body.

8. Compressor, including moving the vortex dish, its characterized in that:

the movable scroll plate according to any one of claims 1 to 7 is used.

9. The compressor of claim 8, wherein:

the compressor also comprises a support and a movable disc bearing;

the supports are all fixed in the compressor, and the movable disc bearing is arranged on the bearing mounting position;

the support with form the backpressure chamber between the vortex dish, first passageway portion, movable disc bearing with the backpressure chamber communicates in proper order.

10. The compressor of claim 9, wherein:

the support is provided with a rotation stopping piece which limits the movable scroll;

the first channel part is communicated to the position of the rotation stopping piece.

11. A compressor according to claim 9 or 10, wherein:

the compressor also comprises a fixed scroll plate, the movable scroll plate and the fixed scroll plate are oppositely arranged and can move relative to the fixed scroll plate, and a compression cavity is formed between the movable scroll plate and the fixed scroll plate.

12. The compressor of claim 11, wherein:

the compressor also includes a seal disposed between the addendum of the wrap and the fixed scroll, the seal blocking the second passage portion.

13. The compressor of claim 11, wherein:

the compressor is internally provided with a suction cavity, a compression cavity, an exhaust cavity, an oil return channel and a back pressure cavity which are communicated in sequence.

14. Air conditioner, including the compressor, its characterized in that:

the compressor is the compressor of any one of the above claims 8 to 13.

15. Vehicle, including the air conditioner, its characterized in that:

the air conditioner is the air conditioner according to claim 14.