Scroll compressor with active oil supply system

Abstract

The present invention relates to a scroll compressor with an active oil supply system, and relates to the technical field of scroll compressors for air conditioners, and specifically, to a horizontal scroll compressor with an active oil supply system. In the present invention, a movable scroll cross-ring cavity oil supply structure is provided between the cross-ring cavity and the crankshaft oil circuit; a movable scroll compression cavity oil supply structure is provided between the cross-ring cavity and the compression cavity; the lubricating oil in the oil pool is pumped into the crankshaft oil circuit by a positive displacement pump through an oil suction pipe assembly, and enters the cross-ring cavity through the movable scroll cross-ring cavity oil supply structure. When the lubricating oil in the cross-ring cavity reaches a certain height, it enters the compression cavity through the movable scroll compression cavity oil supply structure for lubrication, and the lubricating oil is discharged from the scroll cavity along with the refrigerant, and then returns to the oil pool. The technical solution of the present invention solves the problem of uneven lubricating oil in the compression cavity and sliding surfaces of the cross-ring of the horizontal scroll compressor in the prior art.

Description

Technical Field

[0001] The invention discloses a scroll compressor with an active oil supply system, and relates to the technical field of scroll compressors for air conditioners, and in particular to a horizontal scroll compressor with an active oil supply system. Background Art

[0002] Scroll compressors have become the mainstream compressors used in the refrigeration field due to their compact structure, low noise, high energy efficiency and other advantages. However, there are many mechanical friction pairs inside them. If the machining accuracy of the sliding surface of the friction pair does not meet the requirements, the structural design is unreasonable, and the lubrication is insufficient, it will cause energy loss, increased input power, reduced energy efficiency and other undesirable phenomena, and even cause relative motion instability between the scroll disks, which directly leads to damage to the compressor and reduces its reliability and service life. With the rapid development of high-precision machining technology and computer-aided structural design technology, the problems in machining accuracy and structural design have been basically solved. Compared with the former two, due to the changeable and complex fluid movement inside the scroll compressor, its friction pair lubrication has always been a key technology in the industry and a common issue that has always existed. Therefore, solving the problem of internal friction and wear of scroll compressors has great practical and theoretical significance.

[0003] At present, for the lubrication of the compression chamber and cross coupling of the scroll compressor, refrigerant suction oil lubrication and oil mist lubrication are used. For the vertical scroll compressor, the compression chamber and the cross ring are placed horizontally, the height of the sliding surfaces of each friction pair is basically the same, and the lubricating oil is distributed relatively evenly. For the horizontal scroll compressor, its technical route is derived from the vertical scroll compressor, and the lubrication method of its compression chamber and cross ring is basically the same as that of the vertical scroll compressor. Because the compression chamber and cross ring of the horizontal scroll compressor are placed vertically, there is a significant height difference between the sliding surfaces. Under the action of gravity, the lubricating oil is unevenly distributed in the radial height (or vertical to the fixed surface of the scroll compressor), so that the sliding surfaces at different heights are unevenly lubricated, and there is a hidden danger of abnormal wear, especially the cross ring. In addition, as the scroll compressor gradually transitions to frequency conversion, the compressor speed range is also expanded. When the scroll compressor is working, especially when operating under low speed conditions, the refrigerant circulation volume is reduced, the suction oil content is reduced, and the compression chamber and cross ring of the scroll compressor are insufficiently supplied with oil.

[0004] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new scroll compressor with an active oil supply system to overcome the problems existing in the prior art. Summary of the invention

[0005] According to the technical problem of uneven lubrication oil on the sliding surfaces of the compression chamber and the cross ring of the horizontal scroll compressor proposed in the above-mentioned prior art, a scroll compressor with an active oil supply system is provided. The present invention mainly utilizes the movable scroll cross ring cavity oil supply structure and the movable scroll compression cavity oil supply structure arranged inside the movable scroll and the fixed scroll to introduce the lubricating oil in the oil pool into the cross ring cavity, which can not only ensure the uniform distribution of the oil supply to the sliding surfaces at various height positions of the compression chamber and the cross ring, but also ensure that the cross ring cavity is adequately supplied with oil under low speed conditions, thereby ensuring the reliability of the scroll compressor.

[0006] The technical solution adopted by the present invention to solve the technical problem is: in the compressor cylinder, the lubricating oil passes through the volumetric pump, the oil path in the middle of the rotating crankshaft, the oil hole and channel inside the movable scroll, and is connected to the cross ring cavity, and then through the oil groove on the movable scroll, it is connected to the compression cavity, and the refrigeration oil entering the compression cavity is discharged from the outside of the compression cavity along with the refrigerant gas, thereby completing the oil supply cycle. The oil hole connecting the movable scroll and the cross ring cavity is located at the upper part of the scroll body, and under the action of gravity, it is connected to the key grooves at four places through the oil groove on the scroll plate, so as to achieve the purpose of evenly distributed lubrication.

[0007] The technical means adopted by the present invention are as follows:

[0008] A scroll compressor with an active oil supply system comprises: a fixed scroll, a movable scroll, a cross ring, a main support, a crankshaft, a motor stator, a motor rotor, a compressor barrel, a secondary support, a positive displacement pump, and an oil suction pipe assembly; the motor stator is fixedly installed in the middle of the compressor barrel; a motor rotor is fixedly installed in the middle of the crankshaft and then inserted into the inside of the motor stator; a crankshaft oil path is processed on the axis of the crankshaft, and its two ends are supported and installed on the compressor barrel through the main support and the secondary support; a fixed scroll is arranged on the right side of the main support; The closed cavity formed between the scroll and the main support is a cross ring cavity, and the cross ring is placed in the cross ring cavity and performs periodic reciprocating sliding inside it; a movable scroll is arranged between the main support and the fixed scroll, and the closed cavity surrounded by the fixed scroll and the movable scroll is a compression cavity; an oil suction pipe assembly and a positive displacement pump connected to the crankshaft oil circuit are arranged in the middle of the auxiliary support, and the oil pipe assembly is inserted under the liquid surface in the oil pool; heads are installed at both ends of the compressor cylinder, and suction and exhaust are respectively arranged on the heads, wherein the suction is connected to the fixed scroll;

[0009] Furthermore, a movable scroll cross-ring cavity oil supply structure is provided between the cross-ring cavity and the crankshaft oil circuit;

[0010] Furthermore, a movable scroll compression chamber oil supply structure is provided between the cross ring chamber and the compression chamber;

[0011] Furthermore, the lubricating oil in the oil pool is pumped into the crankshaft oil circuit by the volumetric pump through the oil suction pipe assembly, and enters the cross-ring cavity through the movable scroll cross-ring cavity oil supply structure. When the lubricating oil in the cross-ring cavity reaches a certain height, it enters the compression cavity through the movable scroll compression cavity oil supply structure for lubrication. The lubricating oil is discharged from the vortex cavity along with the refrigerant, and then returns to the oil pool.

[0012] Further, the movable scroll cross-ring cavity oil supply structure comprises: an oil receiving port, a cross-ring cavity oil supply channel, a hole A, a hole B and a cross-ring cavity;

[0013] Furthermore, the cross-ring cavity oil supply channel is arranged inside the movable scroll, one end of which is connected to the hole A arranged in the middle of the movable scroll, the hole A is connected to the lower end surface of the movable scroll, and the other end is connected to the hole B close to the side wall of the movable scroll, and the hole B is connected to the upper end surface of the movable scroll;

[0014] Furthermore, the oil receiving port is arranged on the fixed scroll; the specific position is below the running track of the movable scroll hole B; and is connected to the oil receiving groove; the cross-sectional shape of the oil receiving port is rectangular, and can also be V-shaped;

[0015] Furthermore, the oil collecting groove is arranged on the fixed scroll; the specific position is outside the cross ring cavity, which plays the role of separating and sealing the cross ring cavity and the compressor cavity; the cross section of the oil collecting groove is rectangular, or V-shaped;

[0016] Further, hole B ensures movement within the oil receiving opening in the oil receiving groove;

[0017] Furthermore, the inlet end of the movable scroll cross-ring cavity oil supply structure is connected to the cavity between the movable scroll and the crankshaft, and after passing through hole A, the cross-ring cavity oil supply channel, hole B and the oil receiving port, the outlet end of the oil receiving port is connected to the cross-ring cavity, and the lubricating oil pumped in by the crankshaft oil circuit is passed into the cross-ring cavity;

[0018] Further, the movable scroll compression chamber oil supply structure includes: a compression chamber oil supply channel, a hole C, a cross ring chamber and a compression chamber;

[0019] Furthermore, the compression chamber oil supply channel is arranged in the movable scroll, one end of which is communicated with the cross ring chamber through the side wall of the movable scroll, and the other end is communicated with the compression chamber on the upper part of the movable scroll through the hole C;

[0020] Furthermore, the inlet end of the movable scroll compression chamber oil supply structure is connected to the cross ring chamber, and enters the compression chamber through the compression chamber oil supply channel and hole C.

[0021] Furthermore, the inner diameter of the oil supply channel of the cross ring cavity is φ1-5 mm, and the inner diameter of the hole A is processed to be the same as the inner diameter of the oil supply channel of the cross ring cavity.

[0022] Furthermore, the inner diameter of hole B is slightly smaller than the inner diameter of the oil supply channel of the cross ring cavity, and the ratio thereof is between 1:1.5-3, thereby controlling the amount of lubricating oil fed into the cross ring cavity;

[0023] Further, the hole B is disposed at the upper portion of the cross ring cavity.

[0024] Furthermore, the inner diameter of the oil supply passage of the compression chamber is φ1-5 mm, and the inner diameter of the hole C is slightly smaller than the inner diameter of the oil supply passage of the compression chamber, and the ratio thereof is between 1:1.5-3, thereby controlling the amount of lubricating oil supplied to the compression chamber.

[0025] Further, the hole C is disposed at the upper portion of the cross ring cavity.

[0026] The assembly principle of the present invention is:

[0027] Because the compressor is placed horizontally, the oil suction pipe assembly is L-shaped and placed in the oil pool; the oil suction pipe assembly is installed at the end of the crankshaft and communicates with the crankshaft oil circuit in the crankshaft; the crankshaft oil circuit communicates with the movable scroll cross ring cavity oil supply channel through hole A; the movable scroll cross ring cavity oil supply channel communicates with the movable scroll compression cavity oil supply channel through hole B and the cross ring cavity; the positive displacement pump is installed at the end of the crankshaft;

[0028] The working process of the present invention is:

[0029] The positive displacement pump rotates with the crankshaft, pumping the lubricating oil from the oil pool to the crankshaft oil circuit through the oil suction pipe assembly; the lubricating oil is continuously squeezed into the movable scroll cross ring cavity oil supply structure through hole A, and then sprayed into the cross ring cavity through hole B, and the sliding surfaces of the cross ring cavity are lubricated under the action of gravity; the lubricating oil is continuously accumulated in the cross ring cavity, and when it reaches a certain height, the lubricating oil is sprayed from the movable scroll compression cavity oil supply structure through hole C to the compression cavity, lubricating the compressor cavity; the lubricating oil is discharged from the vortex cavity along with the refrigerant, and then returns to the oil pool, completing an oil supply cycle.

[0030] Compared with the prior art, the present invention has the following advantages:

[0031] The scroll compressor with an active oil supply system provided by the present invention can ensure the lubrication of each friction surface in the cross ring cavity and ensure that each friction surface at different height positions can obtain uniform distribution of refrigeration oil, thereby improving the reliability of the compressor.

[0032] In summary, the technical solution of the present invention solves the problem of uneven lubrication oil on the sliding surfaces of the compression chamber and the cross ring of the horizontal scroll compressor in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 It is a schematic diagram of the structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the oil supply structure of the movable scroll cross ring cavity of the present invention;

[0036] Figure 3 This is a schematic diagram of the oil supply structure of the movable scroll compression chamber of the present invention;

[0037] Figure 4 It is a schematic diagram of the movable scroll of the present invention;

[0038] Figure 5 It is a schematic diagram of a fixed vortex of the present invention;

[0039] Figure 6 It is a schematic diagram of the coordination of the movable and fixed scrolls of the present invention.

[0040] In the figure:

[0041] 1. Inhale.

[0042] 2. Fixed scroll 21, oil receiving port;

[0043] 3. Moving scroll 31, cross ring chamber oil supply passage 311, hole A 312, hole B 32, compression chamber oil supply passage 321, hole C 33, compression chamber;

[0044] 4. Cross ring 41, cross ring cavity;

[0045] 5. Main support;

[0046] 6. Crankshaft 61, crankshaft oil circuit;

[0047] 7. Motor stator 8. Motor rotor 9. Compressor barrel 10. Auxiliary support 11. Volume pump 12. Oil suction pipe assembly 13. Oil pool 14. Exhaust. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0052] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0053] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0054] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0055] As shown in the figure, the present invention provides a scroll compressor with an active oil supply system, including: a fixed scroll 2, a movable scroll 3, a cross ring 4, a main support 5, a crankshaft 6, a motor stator 7, a motor rotor 8, a compressor barrel 9, an auxiliary support 10, a positive displacement pump 11, and an oil suction pipe assembly 12; the motor stator 7 is fixedly installed in the middle position of the compressor barrel 9; the motor rotor 8 is fixedly installed in the middle of the crankshaft 6 and then inserted into the inside of the motor stator 7; the axis of the crankshaft 6 is processed with a crankshaft oil path 61, and its two ends are supported and installed in the compressor barrel 9 through the main support 5 and the auxiliary support 10; a fixed Scroll 2; the closed cavity formed between the fixed scroll 2 and the main support 5 is a cross ring cavity 41, and the cross ring 4 is placed in the cross ring cavity 41 and performs periodic reciprocating sliding inside it; a movable scroll 3 is arranged between the main support 5 and the fixed scroll 2, and the closed cavity surrounded by the fixed scroll 2 and the movable scroll 3 is a compression cavity 33; the middle part of the auxiliary support 10 is provided with an oil suction pipe assembly 12 connected to the crankshaft oil circuit 61 and a volume pump 11, and the oil pipe assembly is inserted under the liquid level in the oil pool 13; the compressor cylinder 9 is equipped with a head at both ends, and the head is respectively provided with an intake 1 and an exhaust 14, wherein the intake 1 is connected to the fixed scroll 2;

[0056] A movable scroll cross-ring chamber oil supply structure is provided between the cross-ring chamber 41 and the crankshaft oil circuit 61; a movable scroll compression chamber oil supply structure is provided between the cross-ring chamber 41 and the compression chamber 33; the lubricating oil in the oil pool 13 is pumped into the crankshaft oil circuit 61 by the positive displacement pump 11 through the oil suction pipe assembly 12, and enters the cross-ring chamber 41 through the movable scroll cross-ring chamber oil supply structure. When the lubricating oil in the cross-ring chamber 41 reaches a certain height, it enters the compression chamber 33 through the movable scroll compression chamber oil supply structure for lubrication, and the lubricating oil is discharged from the scroll chamber along with the refrigerant, and then returns to the oil pool 13.

[0057] The movable scroll cross-ring cavity oil supply structure comprises: an oil receiving port 21, a cross-ring cavity oil supply passage 31, a hole A311, a hole B312 and a cross-ring cavity 41; the cross-ring cavity oil supply passage 311 is arranged inside the movable scroll 3, one end of which is connected with the hole A311 arranged in the middle of the movable scroll 3, the hole A311 is connected with the lower end surface of the movable scroll 3, and the other end is connected with the hole B312 close to the side wall of the movable scroll 3, the hole B312 is connected with the upper end surface of the movable scroll 3. The oil receiving port 21 is provided on the fixed scroll 2; the hole B312 ensures movement in the oil receiving port in the oil receiving groove 21; the inlet end of the movable scroll cross ring cavity oil supply structure is connected with the cavity between the movable scroll 3 and the crankshaft 6, and after passing through the hole A311, the cross ring cavity oil supply channel 31, the hole B312 and the oil receiving port 21, the outlet end of the oil receiving port 21 is connected with the cross ring cavity 41, and the lubricating oil pumped in by the crankshaft oil circuit 61 is passed into the cross ring cavity 41. The inner diameter of the cross ring cavity oil supply channel 31 is φ1-5mm, and the inner diameter of the hole A311 is processed to be the same as the inner diameter of the cross ring cavity oil supply channel 31. The inner diameter of the hole B312 is slightly smaller than the inner diameter of the cross ring cavity oil supply channel 31, and the ratio is between 1:1.5-3, thereby controlling the amount of lubricating oil fed to the cross ring cavity. The hole B312 is placed on the upper part of the cross ring cavity 41.

[0058] The movable scroll compression chamber oil supply structure includes: a compression chamber oil supply channel 32, a hole C321, a cross ring chamber 41 and a compression chamber 33; the compression chamber oil supply channel 32 is arranged in the movable scroll 3, one end of which is connected to the cross ring chamber 41 through the side wall of the movable scroll 3, and the other end is connected to the compression chamber 33 at the upper part of the movable scroll 3 through the hole C321; the inlet end of the movable scroll compression chamber oil supply structure is connected to the cross ring chamber 41, and enters the compression chamber 33 through the compression chamber oil supply channel 32 and the hole C321. The inner diameter of the compression chamber oil supply channel 32 is φ1-5mm, and the inner diameter of the hole C321 is slightly smaller than the inner diameter of the compression chamber oil supply channel 32, and the ratio is between 1:1.5-3, thereby controlling the amount of lubricating oil supplied to the compression chamber. The hole C321 is placed at the upper part of the cross ring chamber 41.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A scroll compressor with an active oil supply system, comprising: A fixed scroll (2), a movable scroll (3), a cross ring (4), a main support (5), a crankshaft (6), a motor stator (7), a motor rotor (8), a compressor barrel (9), a secondary support (10), a positive displacement pump (11), and an oil suction pipe assembly (12); the motor stator (7) is fixedly mounted in the middle of the compressor barrel (9); a motor rotor (8) is fixedly mounted in the middle of the crankshaft (6) and then inserted into the inside of the motor stator (7); a crankshaft oil passage (61) is machined on the axis of the crankshaft (6), and the two ends of the crankshaft (6) are supported and mounted on the compressor barrel (9) through the main support (5) and the secondary support (10); a fixed scroll (2) is arranged on the right side of the main support (5); the fixed scroll (2) and the main support (5) are connected to each other. The closed cavity formed between the main support (5) and the fixed scroll (2) is a cross ring cavity (41), and the cross ring (4) is placed in the cross ring cavity (41) and performs periodic reciprocating sliding inside the cross ring cavity (41); a movable scroll (3) is arranged between the main support (5) and the fixed scroll (2), and the closed cavity surrounded by the fixed scroll (2) and the movable scroll (3) is a compression cavity (33); an oil suction pipe assembly (12) and a displacement pump (11) which are connected to the crankshaft oil circuit (61) are arranged in the middle of the auxiliary support (10), and the oil pipe assembly is inserted below the liquid level in the oil pool (13); both ends of the compressor cylinder (9) are equipped with a head, and the head is respectively provided with an air intake (1) and an exhaust (14), wherein the air intake (1) is connected to the fixed scroll (2); the characteristics are: A movable scroll cross-ring cavity oil supply structure is provided between the cross-ring cavity (41) and the crankshaft oil passage (61); The movable scroll cross-ring cavity oil supply structure comprises: an oil receiving port (21), a cross-ring cavity oil supply passage (31), a hole A (311), a hole B (312) and a cross-ring cavity (41); The cross-ring cavity oil supply passage (31) is arranged inside the movable scroll (3), one end of which is connected to a hole A (311) arranged in the middle of the movable scroll (3), the hole A (311) is connected to the lower end surface of the movable scroll (3), and the other end is connected to a hole B (312) close to the side wall of the movable scroll (3), the hole B (312) is connected to the upper end surface of the movable scroll (3); The oil receiving port (21) is arranged on the fixed scroll (2); The hole B (312) ensures movement within the oil receiving port (21); The inlet end of the movable scroll cross-ring cavity oil supply structure is connected to the cavity between the movable scroll (3) and the crankshaft (6); after passing through the hole A (311), the cross-ring cavity oil supply channel (31), the hole B (312) and the oil receiving port (21), the outlet end of the oil receiving port (21) is connected to the cross-ring cavity (41), so that the lubricating oil pumped in from the crankshaft oil path (61) is passed into the cross-ring cavity (41); A movable scroll compression chamber oil supply structure is provided between the cross ring chamber (41) and the compression chamber (33); The movable scroll compression chamber oil supply structure comprises: a compression chamber oil supply passage (32), a hole C (321), a cross ring chamber (41) and a compression chamber (33); The compression chamber oil supply channel (32) is arranged in the movable scroll (3), one end of which is connected to the cross ring chamber (41) through the side wall of the movable scroll (3), and the other end of which is connected to the compression chamber (33) at the upper part of the movable scroll (3) through the hole C (321); The inlet end of the movable scroll compression chamber oil supply structure is connected to the cross ring chamber (41), and enters the compression chamber (33) through the compression chamber oil supply channel (32) and the hole C (321); The lubricating oil in the oil pool (13) is pumped into the crankshaft oil path (61) by the positive displacement pump (11) through the oil suction pipe assembly (12), and enters the cross ring cavity (41) through the movable scroll cross ring cavity oil supply structure. When the lubricating oil in the cross ring cavity (41) reaches a certain height, it enters the compression cavity (33) through the movable scroll compression cavity oil supply structure for lubrication. The lubricating oil is discharged from the vortex cavity along with the refrigerant and then returns to the oil pool (13).

2. The scroll compressor with active oil supply system according to claim 1, characterized in that: The inner diameter of the cross-ring cavity oil supply passage (31) is φ1-5 mm, and the inner diameter of the hole A (311) is processed to be the same as the inner diameter of the cross-ring cavity oil supply passage (31).

3. The scroll compressor with active oil supply system according to claim 1, characterized in that: The inner diameter of the hole B (312) is slightly smaller than the inner diameter of the cross ring cavity oil supply channel (31), and the ratio is between 1:1.5-3, thereby controlling the amount of lubricating oil fed into the cross ring cavity.

4. The scroll compressor with active oil supply system according to claim 3, characterized in that: The hole B (312) is located at the upper part of the cross ring cavity (41).

5. The scroll compressor with active oil supply system according to claim 1, characterized in that: The inner diameter of the compression chamber oil supply passage (32) is φ1-5 mm, and the inner diameter of the hole C (321) is slightly smaller than the inner diameter of the compression chamber oil supply passage (32), and the ratio thereof is between 1:1.5-3, thereby controlling the amount of lubricating oil supplied to the compression chamber.

6. The scroll compressor with active oil supply system according to claim 5, characterized in that: The hole C (321) is located at the upper part of the cross ring cavity (41).

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