CN214036105U - Scroll compressor, air conditioning equipment and vehicle - Google Patents

Abstract

The application discloses scroll compressor, air conditioning equipment and vehicle. The scroll compressor comprises a bracket, a crankshaft, a static scroll, a movable scroll, a support piece arranged on the movable scroll and an eccentric sleeve; the scroll compressor further includes a high pressure side, the bracket having a bearing chamber and a first passage, the eccentric sleeve or support having a communication passage; the movable scroll disc is provided with a second channel; the refrigeration oil at the high-pressure side flows through the first passage, the second passage, the communication passage and the bearing chamber in sequence. Because the pressure of the high-pressure side is greater than the pressure in the bearing chamber, the refrigeration oil flowing out of the high-pressure side sequentially passes through the first channel, the second channel and the communication channel, and the refrigeration oil passes through the communication channel to reach the bearing chamber. The oil way of the scroll compressor is enabled to inevitably pass through the eccentric sleeve and the supporting piece, the lubricating effect of the friction pair at the supporting piece is enhanced, the friction loss is avoided, and the performance of the scroll compressor is improved.

Description

Scroll compressor, air conditioning equipment and vehicle

Technical Field

The application relates to the field of air conditioning equipment, in particular to a scroll compressor, air conditioning equipment and a vehicle.

Background

The scroll compressor is a positive displacement scroll compressor with high efficiency, low noise and smooth operation, and is widely used in an automotive air conditioning system as a third generation vehicle-mounted scroll compressor. In the use process of the vehicle-mounted scroll compressor, refrigeration oil needs to be provided to lubricate a friction pair in the scroll compressor so as to reduce noise generated when the friction pair works.

In the prior art, an oil separator and an oil storage tank are arranged in a scroll compressor, the oil separator is used for separating mixed fluid of refrigerant discharged from a compression cavity and refrigerant oil, the separated refrigerant oil flows into the oil storage tank, and then returns to an oil storage channel of the scroll compressor from the oil storage tank through a throttling mechanism, and is supplied to a bearing chamber to lubricate a friction pair, so that the refrigerant oil is recycled. Because the scroll compressor refrigeration oil injection volume is little, the refrigeration oil circulation oil mass in the scroll compressor is less promptly for the refrigeration oil is difficult to cover each friction pair, and it is poor to appear local lubricated effect easily, thereby leads to scroll compressor compression efficiency to descend, damages even.

Fig. 1 shows a related scroll compressor in the prior art, a refrigerant oil circulation path of the scroll compressor is shown by a dotted arrow in fig. 1, the refrigerant oil is throttled and depressurized by a throttle mechanism and then directly supplied to a main bearing chamber 19, and the refrigerant oil circulation path does not pass through a dynamic disc bearing friction pair 20, so that the dynamic disc bearing friction pair 20 is prone to increase friction power consumption due to insufficient lubrication, and even cause bearing wear.

SUMMERY OF THE UTILITY MODEL

An aim at of this application provides a scroll compressor, and it is vice not through the friction of movable disk bearing to aim at solving current scroll compressor's refrigeration oil circulation route, and leads to the vice friction consumption increase of movable disk bearing friction because of lubricated insufficient, leads to the technical problem of structure wearing and tearing even.

To achieve the purpose, the embodiment of the application adopts the following technical scheme:

the scroll compressor comprises a bracket, a crankshaft, a static scroll, a movable scroll, a support piece arranged on the movable scroll and an eccentric sleeve; the scroll compressor further includes a high pressure side, the bracket having a bearing chamber and a first passage, the eccentric sleeve or the support having a communication passage; the movable scroll is provided with a second channel; the refrigeration oil at the high-pressure side flows through the first passage, the second passage, the communication passage and the bearing chamber in sequence.

In one embodiment, the scroll compressor further comprises a wear plate mounted between the bracket and the orbiting scroll; the wear-resistant sheet is provided with a communication hole which is respectively communicated with the first channel and the second channel.

In one embodiment, the movable scroll is provided with an oil groove for communicating the communication hole with the second channel, and an inlet of the second channel is positioned at the bottom of the oil groove or the inner side wall of the oil groove.

In one embodiment, a second bearing is installed in the bearing chamber, and one end of the crankshaft is inserted through and supported by the second bearing.

In one embodiment, the supporting member is a first bearing, the oil groove is a circular groove, and the wear plate is provided with a yielding circular hole yielding to the eccentric sleeve; the vertical distance between the central axis of the first bearing and the central axis of the oil groove is L; the inner diameter of the orifice of the bearing chamber is D1, the inner diameter of the abdicating circular hole is D2, the inner diameter of the oil groove is D3, and the revolution radius of the movable scroll disc around the translation of the fixed scroll disc is rho; wherein L, D1, D2 and rho satisfy the following relations:

d2 < D1, and D2 < 2L-D3-2 ρ.

In one embodiment, the wear-resistant plate is provided with a yielding round hole which is used for yielding the eccentric sleeve, and a sealing plate capable of covering the oil groove is arranged on the wear-resistant plate; when the movable scroll plate rotates, the motion trail of the oil groove is positioned in the boundary range of the sealing sheet.

In one embodiment, the scroll compressor further comprises an oil guide block movably mounted in the oil groove, and an anti-spinning pin; the oil guide block is provided with a pin hole communicated with the communicating hole; one end of the anti-rotation pin is positioned in the first channel, the other end of the anti-rotation pin is positioned in the pin hole, and the anti-rotation pin penetrates through the communicating hole; an oil passing groove is formed in the inner wall of the pin hole; and a gap is formed between the anti-self-rotation pin and the inner surface of the oil passing groove.

In one embodiment, the oil groove is a circular groove, the inlet of the second passage is circular, and the inner diameter of the oil groove is greater than or equal to 1.5 times the inner diameter of the inlet of the second passage.

In one embodiment, the scroll compressor further comprises a low pressure housing having the low pressure side; the crankshaft has a third passage that communicates the communication passage with the low-pressure side, respectively.

In one embodiment, the bracket is mounted to the low pressure housing; a bearing seat is arranged in the low-pressure shell, and a third bearing is mounted on the bearing seat; one end of the crankshaft far away from the movable scroll is mounted on the third bearing.

In one embodiment, the scroll compressor further comprises a drive assembly for driving rotation of the crankshaft; the driving assembly comprises a motor stator arranged in the low-voltage shell, a motor rotor arranged on the motor stator, and an electric control part electrically connected with the motor stator and the motor rotor; the crankshaft is mounted to the motor rotor.

In one embodiment, the oil-gas separation assembly comprises a high-pressure shell mounted on the fixed scroll, and an oil separation pipe positioned in the high-pressure shell; the high-pressure shell is provided with an exhaust port; the oil return opening is formed in the high-pressure shell.

In one embodiment, the fixed scroll is provided with a fourth passage for communicating the oil return port with the first passage, and a throttling piece is arranged in the fourth passage.

Compared with the prior art, the scroll compressor provided by the embodiment of the application has at least the following beneficial effects: the application provides a scroll compressor, communicate first passageway on the support with scroll compressor's high-pressure side for the refrigerated oil that flows out from scroll compressor's high-pressure side flows to the first passageway in the support, and the refrigerated oil in the first passageway flows to the second passageway on the movable scroll dish, and the refrigerated oil in the second passageway flows to the communicating channel that forms between eccentric bushing and the support, and the refrigerated oil passes through the communicating channel and reaches the bearing chamber. Therefore, the oil way of the scroll compressor inevitably penetrates through the communication channel, so that the refrigeration oil in the oil way inevitably passes through the friction pair of the support piece, the lubricating effect at the friction pair can be enhanced, the friction loss is avoided, and the performance of the scroll compressor is improved.

It is a further object of the present application to provide an air conditioning apparatus including a scroll compressor in any of the above embodiments.

The air conditioning equipment that this application embodiment provided, through adopting foretell scroll compressor, compare with prior art, have following technological effect at least: in the scroll compressor of the air conditioning equipment, the refrigerant oil inevitably passes through a friction pair of the supporting piece and can be contacted with the eccentric sleeve, the movable scroll and the crankshaft; therefore, when the crank shaft drives the movable scroll disk to rotate, the crank shaft, the eccentric sleeve, the supporting piece and the movable scroll disk are not easy to wear. The service life of the air conditioning equipment is long, and the noise in working is low.

It is a further object of the present application to provide a vehicle including the air conditioning apparatus in the above embodiment.

The vehicle that this application embodiment provided, through adopting foretell air conditioning equipment, compare with prior art, have following technological effect at least: in the air conditioning equipment in the vehicle, the friction pair at the supporting part in the scroll compressor has enough lubricating oil supply, the noise is low during operation, and the air conditioning equipment of the vehicle is not easy to generate larger noise.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic oil return diagram of a related art scroll compressor;

FIG. 2 is a cross-sectional view of a scroll compressor in one embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a sectional view of FIG. 2 at the orbiting scroll;

FIG. 5 is a schematic sectional view at an orbiting scroll in another embodiment of the present application;

FIG. 6 is a schematic sectional view at an orbiting scroll in yet another embodiment of the present application;

FIG. 7 is a cross-sectional view of a scroll compressor in yet another embodiment of the present application;

FIG. 8 is a perspective view of the oil guide block of FIG. 7;

FIG. 9 is a schematic structural diagram of the oil guide block in FIG. 7;

in the figure:

1. a support; 101. a first channel; 102. a bearing chamber;

2. a crankshaft; 201. a third channel;

3. a low pressure housing; 301. a low pressure side; 302. a bearing seat;

4. a movable scroll pan; 401. a second channel; 402. an oil sump;

5. a static scroll pan; 501. a fourth channel;

6. a drive assembly; 601. a motor stator; 602. a motor rotor; 603. an electrical control;

7. an oil-gas separation assembly; 701. an oil return port; 702. a high pressure housing; 703. oil separation; 704. an exhaust port;

8. a wear resistant sheet; 801. a communicating hole; 802. a abdicating round hole; 803. a sealing sheet;

9. an oil guide block; 901. a pin hole; 9011. an oil passing groove;

10. a first bearing; 11. a communication channel; 12. a second bearing; 13. the self-rotation prevention pin; 14. a third bearing; 15. an eccentric sleeve; 16. a throttle member; 17. a compression chamber; 18. a pin; 19. a main bearing housing; 20. the dynamic disc bearing rubs vice.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The following detailed description of implementations of the present application is provided in conjunction with specific embodiments.

As shown in fig. 2 to 4, the present embodiment provides a scroll compressor, which includes a bracket 1, a crankshaft 2, a fixed scroll 5, a movable scroll 4, a supporting member (the supporting member is a first bearing 10 or a shaft sleeve, and the first bearing 10 and the shaft sleeve both rotatably support an eccentric sleeve 15, which will be exemplified by the first bearing 10 below), the eccentric sleeve 15, a driving assembly 6, and an oil-gas separation assembly 7. A first bearing 10 is mounted on the orbiting scroll 4, and an eccentric sleeve 15 is mounted on the first bearing 10. The crankshaft 2 is rotatably mounted on the bracket 1 and connected with the driving assembly 6, and when the driving assembly 6 drives the crankshaft 2 to rotate, the crankshaft 2 drives the movable scroll disk 4 to revolve and translate relative to the fixed scroll disk 5 through the eccentric sleeve 15. The movable scroll disk 4 is positioned between the bracket 1 and the fixed scroll disk 5, the movable scroll disk 4 is matched with the fixed scroll disk 5 to compress refrigerant and refrigeration oil when revolving and translating, and the compressed refrigerant and refrigeration oil enter the oil-gas separation assembly 7. It should be noted that in the present embodiment, the scroll compressor includes a high pressure side and a low pressure side 301, a bearing chamber 102 is opened on a surface of the bracket 1 opposite to the orbiting scroll, a communication channel 11 is formed between the eccentric sleeve 15 and the first bearing 10, the bracket 1 has a first channel 101 communicating with the high pressure side, and the orbiting scroll 4 has a second channel 401 respectively communicating the first channel 101 and the communication channel 11. The communication passage 11 communicates the bearing chamber 102 with the second passage 401, respectively. The bearing chamber 102 communicates with the low pressure side 301. The high-pressure side, the first passage 101, the second passage 401, the communication passage 11, and the bearing chamber 102 are sequentially communicated, and the high-pressure refrigerant oil at the high-pressure side sequentially flows through the first passage 101, the second passage 401, the communication passage 11, and the bearing chamber 102.

In the embodiment of the present application, compared with the prior art, the scroll compressor provided by the present application communicates the first passage 101 on the bracket 1 with the high-pressure side of the scroll compressor, so that the refrigerant oil flowing out from the high-pressure side of the scroll compressor flows to the first passage 101 in the bracket 1, the refrigerant oil in the first passage 101 flows to the second passage 401 on the orbiting scroll 4, the refrigerant oil in the second passage 401 flows to the communication passage 11 formed between the eccentric sleeve 15 and the first bearing 10, and the refrigerant oil passes through the communication passage to reach the bearing chamber 102. Therefore, the oil circuit of the scroll compressor inevitably penetrates through the communication channel 11, so that the refrigeration oil in the oil circuit inevitably passes through the friction pair of the first bearing 10, the lubricating effect at the friction pair can be enhanced, the friction loss is avoided, and the performance of the scroll compressor is improved. Meanwhile, the refrigeration oil can also be in contact with the eccentric sleeve 15, the crankshaft 2 and the movable scroll disk 4, and when the crankshaft 2 drives the movable scroll disk 4 to rotate, the crankshaft 2, the eccentric sleeve 15, the first bearing 10 and the movable scroll disk 4 are not easy to wear.

In an embodiment of the present application, the oil-gas separation assembly includes an oil-containing internal chamber. The high pressure side of the scroll compressor includes an oil separation chamber. The oil-gas separation assembly 7 is provided with an oil return port 701 communicated with the oil separation inner cavity, the oil return port 701 is communicated with the first channel 101, and the movable scroll 4 is provided with a second channel 401 communicated with the first channel 101 and the communication channel 11. In this way, the refrigerant oil separated in the oil-gas separation assembly 7 can enter the second channel 401 on the orbiting scroll 4 through the first channel 101 on the bracket 1, and then enter the communication channel 11 between the eccentric sleeve 15 and the first bearing 10 through the second channel 401, so that the refrigerant oil entering the communication channel 11 can lubricate the eccentric sleeve 15 and the first bearing 10.

For example, the refrigerant oil flowing through the communication passage 11 may flow into the low pressure housing 3 through a passage in the sleeve or the crankshaft 2, be mixed with the refrigerant again, and enter the compression chamber 17 formed by the fixed scroll 5 and the orbiting scroll 4 to be compressed.

Optionally, the high pressure side of the scroll compressor includes a compression chamber 17, i.e. the high pressure refrigerant oil in the compression chamber 17 does not pass through the oil-gas separation assembly 7 and directly reaches the first passage 101.

In the embodiment of the present application, the high-pressure side of the scroll compressor may include any one of the oil-gas inner cavity of the oil-gas separation assembly 7 and the compression cavity 17, and may also include both the oil-gas inner cavity of the oil-gas separation assembly 7 and the compression cavity 17. Specifically, all of the refrigerant oil in the compression chamber 17 can directly reach the first passage 101 without the action of the oil-gas separation assembly 7; the part of the refrigeration oil in the compression cavity 17 can also directly reach the first channel 101 without the action of the oil-gas separation assembly 7, and the rest part of the refrigeration oil reaches the first channel 101 after the action of the oil-gas separation assembly 7. Therefore, in the embodiment of the present application, since the compression chamber 17 and the oil-gas inner chamber of the oil-gas separation assembly 7 have sufficient pressures, they can be used as the high-pressure side of the scroll compressor, so that the refrigerant oil can smoothly pass through the communication channel 11 between the eccentric sleeve 7 and the first bearing 12 and flow to the bearing chamber 17. So that the oil path of the scroll compressor necessarily passes through the eccentric sleeve 7 and the first bearing 12.

In the embodiment of the present application, the first channel 101 may be formed by a hole formed in the bracket 1; the first passage 101 may also be a groove formed in the surface of the bracket 1, and the groove is surrounded by the orbiting scroll 4 or the wear plate 8 to form the first passage 101.

As can be appreciated, the communication channel 11 between the eccentric sleeve 15 and the first bearing 10; an oil groove 402 or the like may be formed on the surface of the eccentric sleeve 15, so that a gap is formed between the eccentric sleeve 15 and the first bearing 10, thereby forming the communication passage 11; the communication passage 11 may be formed as a gap between the inner and outer races of the first bearing 10.

Optionally, a pin 18 may be further disposed between the crankshaft 2 and the eccentric sleeve 15, the pin 18 is fixed on the crankshaft 2, and the eccentric sleeve 15 is movably inserted on the pin 18, so that the movable scroll disk 4 is driven to perform revolving translation by the transmission of the pin 18, the eccentric sleeve 15 and the first bearing 10 when the crankshaft 2 rotates.

Referring to fig. 2 to 4, as another specific embodiment of the scroll compressor provided by the present application, the scroll compressor further includes a wear pad 8 installed between the bracket 1 and the movable scroll 4, and the wear pad 8 can avoid direct contact and friction between the movable scroll 4 and the bracket 1 during revolution and translation, thereby avoiding damage to the structure of the movable scroll 4 itself and avoiding friction loss to the bracket 1. The wear-resistant plate 8 is provided with a communication hole 801 for communicating the first channel 101 and the second channel 401, the wear-resistant plate 8 covers the inlet of the second channel 401, so that the refrigerant oil can only enter the second channel 401 through the communication hole 801 of the wear-resistant plate 8, and the refrigerant oil entering the second channel 401 can be effectively prevented from leaking, so that most of the refrigerant oil reaches the communication channel 11 along the second channel 401 and passes through the communication channel 11 to reach the bearing chamber 12 to form an oil path of the scroll compressor, the refrigerant oil at the positions of the crankshaft 2, the eccentric sleeve 15, the first bearing 10 and the movable scroll 4 is sufficiently supplied, and the wear is not easy to occur. When the scroll compressor is used, the internal friction pair is not easy to generate noise when moving, the abrasion of parts in unit time is lower, and the service life of a product is longer.

It will be appreciated that wear plate 8 is mounted between bracket 1 and orbiting scroll 4 to fill the gap between bracket 1 and orbiting scroll 4. In the process that the freezing oil in the first channel 101 enters the second channel 401 through the communication hole 801 on the wear-resistant plate 8, the freezing oil is not easy to leak to other positions through the gap between the bracket 1 and the movable scroll 4, and almost only flows along the channel formed by the first channel 101, the communication hole 801 and the second channel 401, so that most of the freezing oil can reach the communication channel 11 through the second channel 401, and the sufficient supply of the freezing oil at the crankshaft 2, the eccentric sleeve 15, the first bearing 10 and the movable scroll 4 is ensured. In the long-term operation process of the scroll compressor, the refrigerant oil can only flow along the preset channel formed by the first channel 101, the communication hole 801 and the second channel 401, and is not easy to leak to other positions where the refrigerant oil is not needed, and the normal operation of other components is not easy to be affected.

Referring to fig. 2 to 4, as another embodiment of the scroll compressor provided in the present application, an oil groove 402 for communicating a communication hole 801 and a second channel 401 is formed in the orbiting scroll 4, and an inlet of the second channel 401 is located at a bottom of the oil groove 402. When the movable scroll 4 is driven by the crankshaft 2 to revolve and translate, the movable scroll 4 has a certain revolving radius, so that the position of the movable scroll 4 relative to the communication hole 801 changes, the oil groove 402 is arranged, the inlet of the second channel 401 is arranged at the bottom of the oil groove 402, so that the oil groove 402 can be communicated with the communication hole 801 in the movement process of the movable scroll 4 in a certain range, the refrigerant oil in the first channel 101 can continuously flow to the oil groove 402 through the communication hole 801 and enter the second channel 401 to flow to the communication channel 11, and parts such as a friction pair of the first bearing 10, the eccentric sleeve 15 and the like are lubricated.

Alternatively, the inlet of the second channel 401 is located at the inner sidewall of the oil sump 402.

Referring to fig. 2 to 4, as another embodiment of the scroll compressor provided by the present application, a bearing chamber 102 is formed on a surface of the bracket 1 opposite to the orbiting scroll 4, a second bearing 12 is installed in the bearing chamber 102, the crankshaft 2 is installed in the second bearing 12, and the communication passage 11 communicates the bearing chamber 102 with a second passage 401. After passing through the communication passage 11, the refrigerant oil in the second passage 401 enters the bearing chamber 102, and can lubricate the second bearing 12, thereby reducing the friction loss of the second bearing 12 supporting the middle portion of the crankshaft 2. Alternatively, the refrigerant oil in the bearing chamber 102 may flow to the low pressure side 301 of the low pressure housing 3 of the scroll compressor through the third passage 201 on the crankshaft 2, and then mixed with the refrigerant at the low pressure side 301, and the mixed refrigerant may again enter the compression cavity 17 between the orbiting scroll 4 and the fixed scroll 5 for compression. And the refrigerant of the scroll compressor can be recycled by sequential circulation.

Referring to fig. 5, as another embodiment of the scroll compressor provided by the present application, the oil groove 402 is a circular groove (the circular groove is defined as the opening and the bottom of the groove are circular with the same specification, and the cross section of the inner side wall between the opening and the bottom of the groove is also circular with the same size as the opening and the bottom of the groove), the wear plate 8 has a relief circular hole 802 avoiding the eccentric sleeve 15; a vertical distance between the central axis of the first bearing 10 and the central axis of the oil groove 402 is L (vertical distance refers to a length of a line segment perpendicular to between the central axis of the first bearing 10 and the central axis of the oil groove 402); the inner diameter of the orifice of the bearing chamber 102 is D1, the inner diameter of the abdicating circular hole 802 is D2, the outer ring outer diameter of the second bearing 12 is D0, the inner diameter of the oil groove 402 is D3, and the revolving radius of the orbiting scroll 4 around the fixed scroll 5 in a translation manner (i.e., the revolving radius of the scroll compressor) is ρ. The eccentric sleeve 15 is eccentrically connected with the crankshaft 2 through a pin 18, so that the movable scroll disk 4 is driven to rotate by the eccentric sleeve 15 when the crankshaft 2 rotates.

When the orbiting scroll 4 is revolved and translated by the crankshaft 2, it moves within a certain radius of gyration, and the position of the oil groove 402 also moves within the radius of gyration. Wherein when L, D1, D2 and rho satisfy the following relations: d0 < D1, D2 < D1, and D2 < 2L-D3-2 rho, during the revolution and translation of the movable scroll disk 4, the oil groove 402 on the movable scroll disk 4 can be ensured to be covered by the wear-resistant sheet 8, the refrigerant oil entering the oil groove 402 from the first channel 101 can only flow to the communication channel 11 along the second channel 401, so that the return flow path of the refrigerant oil separated at the oil-gas separation assembly 7 can certainly pass through the communication channel 11, the oil passing amount at the communication channel 11 is ensured to be sufficient, and the friction pair of the first bearing 10 can be sufficiently lubricated. Compared with the prior art, the refrigeration oil does not pass through the scroll compressor with the crankshaft 2, the eccentric sleeve 15 and the first bearing 10, and the power consumption of the scroll compressor can be reduced by the scheme of the application. And difficult abnormal sound that sends in this application scroll compressor working process, the scroll compressor of this application can guarantee that air conditioning equipment's noise is enough low when being applied to air conditioning equipment.

Due to the high compactness requirement of the scroll compressor, in the case that the bearing requirement of the first bearing 10 is high and the opening of the bearing chamber 102 needs to be set large, even if the oil groove 402 intersects with the orifice of the bearing chamber 102, the oil groove 402 does not intersect with the offset circular hole 802 of the wear plate 8, so that the oil groove 402 does not communicate with the bearing chamber 102. Therefore, on the basis of ensuring that the scroll compressor has a compact structure and the first bearing 10 has a large load, the refrigerant oil entering the oil groove 402 from the first passage 101 can only flow to the communication passage 11 along the second passage 401, so that the return flow path of the refrigerant oil separated at the oil-gas separation assembly 7 must pass through the communication passage 11, the oil passing amount at the communication passage 11 is ensured to be sufficient, and the friction pair of the first bearing 10 can be sufficiently lubricated.

Referring to fig. 6, as another embodiment of the scroll compressor provided by the present application, the wear-resistant plate 8 has a relief circular hole 802 for avoiding the eccentric sleeve 15, and the inner wall of the relief circular hole 802 of the wear-resistant plate 8 is provided with a sealing plate 803 corresponding to the oil groove 402 (the sealing plate 803 is formed by extending from the inner wall of the relief circular hole 802 to the center of the relief circular hole 802). When the movable scroll 4 moves, the movement locus of the oil groove 402 is located within the boundary range of the sealing plate 803, that is, the sealing plate 803 on the wear-resistant plate 8 can prevent the oil groove 402 on the movable scroll 4 from communicating with the bearing chamber 102, so that the frozen oil in the oil groove 402 can only flow to the communication channel 11 through the second channel 401, the return flow path of the frozen oil separated at the oil-gas separation assembly 7 can necessarily pass through the communication channel 11, the oil passing amount at the communication channel 11 is ensured to be sufficient, and the friction pair of the first bearing 10 can be sufficiently lubricated.

Referring to fig. 7-9, as another embodiment of the scroll compressor provided by the present application, the scroll compressor further includes an oil guide block 9 movably installed in the oil groove 402, and an anti-rotation pin 13; the oil guide block 9 is provided with a pin hole 901 communicated with the communication hole 801; one end of the rotation preventing pin 13 is positioned in the first channel 101, the other end of the rotation preventing pin 13 is positioned in the pin hole 901, and the rotation preventing pin 13 penetrates through the communication hole 801; an oil passing groove 9011 is formed in the inner wall of the pin hole 901; a gap is formed between the anti-rotation pin 13 and the inner surface of the oil passing groove 9011. The oil guide block 9 in the oil groove 402 is attached to the wear-resistant plate 8, so that the frozen oil in the first channel 101 enters the oil passing groove 9011 on the inner wall of the pin hole 901 of the guide block through the communication hole 801 on the wear-resistant plate 8 and enters the groove bottom of the oil groove 402, enters the second channel 401 through the inlet of the second channel 401, and flows to the communication channel 11.

When the movable scroll disk 4 performs revolution translation and works normally in cooperation with the fixed scroll disk 5, the oil guide block 9 is attached to the wear-resistant plate 8 and rotates around the anti-rotation pin 13, the oil passing groove 9011 of the oil guide block 9 is kept to be communicated with the communicating hole 801 in the wear-resistant plate 8, oil sealing is performed by attaching the outer side of the oil guide block 9 to the inner wall of the oil groove 402 of the movable scroll disk 4, the frozen oil in the oil groove 402 is prevented from entering the bearing chamber 102, the frozen oil entering the oil guide block 9 of the oil groove 402 from the first channel 101 can only flow to the communicating channel 11 along the second channel 401, the backflow path of the frozen oil separated at the oil-gas separation assembly 7 can certainly pass through the communicating channel 11, the oil passing amount at the communicating channel 11 is ensured to be sufficient, and the friction pair of the first bearing 10 can be lubricated sufficiently.

Referring to fig. 4, as another embodiment of the scroll compressor provided by the present application, the oil groove 402 is a circular groove, the inlet of the second passage 401 is circular, and the inner diameter of the oil groove 402 is greater than or equal to 1.5 times the inner diameter of the inlet of the second passage 401. Since the inner diameter of the oil groove 402 is large enough, the communication hole 801 of the wear-resistant plate 8 can continuously communicate with the oil groove 402 during the movement of the orbiting scroll 4 and flow the refrigerant oil into the oil groove 402, the refrigerant oil in the oil groove 402 flows into the second channel 401 to the communication channel 11, so that the communication channel 11 has enough refrigerant oil replenishment. Alternatively, the inlet of the second channel 401 may be set at the center of the oil groove 402, and during the movement of the orbiting scroll 4, the refrigerant oil flowing from the communication hole 801 of the wear plate 8 to the oil groove 402 may rapidly enter the inlet of the second channel 401, thereby further ensuring that the refrigerant oil may continuously and stably flow to the communication channel 11 through the second channel 401. The eccentric sleeve 15, the crankshaft 2 and the movable scroll disk 4 can be continuously and stably supplemented with the refrigeration oil, and when the crankshaft 2 drives the movable scroll disk 4 to rotate, the crankshaft 2, the eccentric sleeve 15, the first bearing 10 and the movable scroll disk 4 are not easy to wear and are not easy to generate instantaneous clamping friction.

Referring to fig. 2, as another embodiment of the scroll compressor provided in the present application, the crankshaft 2 has a third passage 201, and the communication passage 11 communicates the second passage 401 with the third passage 201. Alternatively, the refrigerant oil in the communication channel 11 may flow to the low pressure side 301 of the low pressure housing 3 of the scroll compressor through the third channel 201 on the crankshaft 2, and then mixed with the refrigerant at the low pressure side 301, and the mixed refrigerant may enter the compression cavity 17 between the orbiting scroll 4 and the fixed scroll 5 again for compression. In some embodiments, the refrigerant oil in the communication channel 11 may first enter the bearing chamber 102 and then flow through the third channel 201 on the crankshaft 2 to the low pressure side 301 of the low pressure housing 3 of the scroll compressor.

Referring to fig. 2, as another embodiment of the scroll compressor provided in the present application, the scroll compressor further includes a low pressure housing 3 having a low pressure side 301, and the refrigerant oil passing through the communication passage 11 enters the bearing chamber 102, flows into the low pressure side 301 through a third passage 201 of the crankshaft 2, mixes with the refrigerant, enters a compression chamber 17 between the orbiting scroll 4 and the fixed scroll 5, and is compressed continuously. The bracket 1 is installed on the low pressure housing 3, a bearing seat 302 is arranged in the low pressure housing 3, a third bearing 14 is installed on the bearing seat 302, and one end of the crankshaft 2, which is far away from the orbiting scroll 4, is installed on the third bearing 14, so that the refrigerant oil flowing out of the third channel 201 can lubricate the third bearing 14 first and then enters the low pressure side 301. The third bearing 14 and the second bearing 12 are respectively supported at different positions of the crankshaft 2 in a matching manner, and the crankshaft 2 can stably rotate.

Referring to fig. 2, as another embodiment of the scroll compressor provided by the present application, the scroll compressor further includes a driving assembly 6 for driving the crankshaft 2 to rotate; the driving assembly 6 includes a motor stator 601 installed in the low-voltage housing 3, a motor rotor 602 installed in the motor stator 601, and an electric control member 603 electrically connected to the motor stator 601 and the motor rotor 602, and the crankshaft 2 is installed in the motor rotor 602. The electric controller 603 can control the operation of the motor stator 601 and the motor rotor 602, and the motor rotor 602 can further drive the crankshaft 2 to rotate when rotating. It will be appreciated that the electronic control 603 may also control the operation of other components of the scroll compressor.

Referring to fig. 2, as another embodiment of the scroll compressor provided in the present application, the oil-gas separation assembly 7 includes a high-pressure housing 702 mounted on the fixed scroll 5, and an oil distribution pipe 703 located in the high-pressure housing 702; the high-pressure shell 702 is provided with an air outlet 704; the oil return port 701 is opened in the high-pressure housing 702.

The mixture of the refrigeration oil and the refrigerant in the high-pressure housing 702 is centrifugally separated by the oil pipe 703, and the refrigerant is discharged through the exhaust port 704, flows to the intake port in the low-pressure housing 3 through a pipeline, and enters the low-pressure side 301; the frozen oil flows out from the oil return port 701, firstly enters the fourth channel 501 of the fixed scroll 5, is depressurized by the throttling element 16 in the fourth channel 501, enters the first channel 101 on the bracket 1, enters the oil groove 402 through the communication hole 801 of the wear-resistant plate 8, enters the second channel 401 through the inlet of the groove bottom of the oil groove 402, flows to the communication channel 11 to lubricate the first bearing 10 and the eccentric sleeve 15, passes through the communication channel 11 to enter the bearing chamber 102 to lubricate the second bearing 12, enters the third channel 201 of the crankshaft 2, flows to the third bearing 14 to moisten the third bearing 14, and finally reaches the low-pressure side 301 to be mixed with the refrigerant. And after mixing, the mixed liquid enters the compression cavity 17 between the movable scroll disk 4 and the fixed scroll disk 5 again for compression, the compressed mixed liquid enters the oil-gas separation assembly 7 for separation, and the separated refrigeration oil flows out from the oil return port 701 and enters the fourth channel 501 of the fixed scroll disk 5 first to circulate in sequence.

The embodiment of the application also provides air conditioning equipment, which comprises the scroll compressor in any one of the embodiments. In a scroll compressor of the air conditioning equipment, the refrigerating oil flowing out of an oil return port 701 of the oil-gas separation assembly 7 flows to a first passage 101 in the bracket 1; the refrigerant in the first passage 101 flows to the second passage 401 on the orbiting scroll 4, and the refrigerant in the second passage 401 flows to the communication passage 11 formed between the eccentric sleeve 15 and the first bearing 10. Therefore, the refrigeration oil circulated and returned by the scroll compressor can pass through the friction pair of the first bearing 10 and can also be contacted with the eccentric sleeve 15, the crankshaft 2 and the movable scroll 4, and when the movable scroll 4 is driven by the crankshaft 2 to rotate, the crankshaft 2, the eccentric sleeve 15, the first bearing 10 and the movable scroll 4 are not easy to wear. Therefore, when the air conditioning equipment works, the internal structure is not easy to damage, the friction is not easy to generate great influence due to the lack of the refrigeration oil, and the noise of the air conditioning equipment is low when the air conditioning equipment is used.

The embodiment of the application also provides a vehicle which comprises the air conditioning equipment in the embodiment. The air conditioning equipment can be a vehicle-mounted air conditioner, and the vehicle also comprises other necessary components forming the vehicle-mounted air conditioner in the prior art.

In the present application, the specific type of the vehicle is not limited, for example, the vehicle may be a conventional fuel vehicle, and may also be a new energy vehicle, which includes, but is not limited to, a pure electric vehicle, an extended range electric vehicle, a hybrid electric vehicle, a fuel cell electric vehicle, a hydrogen engine vehicle, and the like, and the present embodiment is not limited thereto.

It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims (15)

1. The scroll compressor comprises a bracket, a crankshaft, a static scroll, a movable scroll, a support piece arranged on the movable scroll and an eccentric sleeve; the scroll compressor further including a high pressure side, wherein the bracket has a bearing chamber and a first passage, and the eccentric sleeve or the support member has a communication passage; the movable scroll is provided with a second channel; the frozen oil at the high pressure side flows through the first passage, the second passage, the communication passage, and the bearing chamber.

2. The scroll compressor of claim 1, further comprising a wear plate mounted between the bracket and the orbiting scroll; the wear-resistant sheet is provided with a communication hole for communicating the first channel and the second channel.

3. The scroll compressor of claim 2, wherein the orbiting scroll is provided with an oil groove communicating the communication hole with the second passage.

4. The scroll compressor of claim 3, wherein the inlet of the second passage is located at a floor of the oil sump.

5. The scroll compressor of claim 1, wherein a second bearing is mounted within the bearing chamber, one end of the crankshaft being disposed through and supported by the second bearing.

6. The scroll compressor of claim 3, wherein the support member is a first bearing, the oil groove is a circular groove, and the wear plate has a relief circular hole that clears the eccentric sleeve; the vertical distance between the central axis of the first bearing and the central axis of the oil groove is L; the inner diameter of the orifice of the bearing chamber is D1, the inner diameter of the abdicating circular hole is D2, the inner diameter of the oil groove is D3, and the revolution radius of the movable scroll disc around the translation of the fixed scroll disc is rho; wherein L, D1, D2 and rho satisfy the following relations:

d2 < D1, and D2 < 2L-D3-2 ρ.

7. The scroll compressor of claim 3, wherein the wear plate has a relief circular hole for avoiding the eccentric sleeve, and a sealing plate capable of covering the oil groove is arranged on the wear plate; when the movable scroll plate rotates, the motion trail of the oil groove is positioned in the boundary range of the sealing sheet.

8. The scroll compressor of claim 3, further comprising an oil guide block movably mounted within the oil sump, and an anti-spin pin; the oil guide block is provided with a pin hole communicated with the communicating hole; one end of the anti-rotation pin is positioned in the first channel, the other end of the anti-rotation pin is positioned in the pin hole, and the anti-rotation pin penetrates through the communicating hole; an oil passing groove is formed in the inner wall of the pin hole; and a gap is formed between the anti-self-rotation pin and the inner surface of the oil passing groove.

9. The scroll compressor of claim 4, wherein the oil sump is a circular sump, the inlet of the second passage is circular, and an inner diameter of the oil sump is greater than or equal to 1.5 times an inner diameter of the inlet of the second passage.

10. The scroll compressor of any one of claims 1-9, further comprising a low pressure housing having a low pressure side; the crankshaft has a third passage that communicates the communication passage with the low pressure side.

11. The scroll compressor of claim 10, wherein the bracket is connected to the low pressure housing; a bearing seat is arranged in the low-pressure shell, and a third bearing is mounted on the bearing seat; one end of the crankshaft far away from the movable scroll is mounted on the third bearing.

12. The scroll compressor of any one of claims 1 to 9, wherein the fixed scroll has a fourth passage communicating the high pressure side with the first passage.

13. The scroll compressor of claim 12, wherein a restriction is provided in the fourth passage.

14. Air conditioning apparatus, comprising a scroll compressor as claimed in any one of claims 1 to 13.

15. Vehicle, characterized in that it comprises an air conditioning apparatus according to claim 14.

Images