Compressor and refrigeration equipment

Abstract

The present invention provides a compressor and refrigeration equipment, belonging to the field of compressors. It includes: a casing, which has an accommodating space formed therein; a scroll assembly, including a mutually meshing movable scroll and a fixed scroll, the fixed scroll being arranged in contact with the inner wall of the casing and forming a first exhaust chamber between its top surface and the top of the casing; an upper support frame, which is arranged in contact with the inner wall of the casing and is used to support the scroll assembly; a drive assembly, a second exhaust chamber being formed between the drive assembly and the upper support frame, and a third exhaust chamber being formed between the drive assembly and the bottom of the casing, and an exhaust pipe communicating with the second exhaust chamber being provided on the casing; an oil-gas separation assembly, which includes an oil distribution pipe provided on the casing and an oil distribution baffle provided in the first exhaust chamber, the air inlet end of the oil distribution pipe being connected to the first exhaust chamber, and the exhaust end being connected to the second exhaust chamber or the third exhaust chamber. The present invention adopts a combination of the oil distribution baffle and the oil distribution pipe to perform multiple oil-gas separations on the exhaust of the compressor, thereby reducing the oil discharge rate of the compressor.

Description

Technical Field

[0001] The present invention belongs to the field of compressors, and in particular relates to a compressor and refrigeration equipment. Background Art

[0002] Scroll compressors, known for their high cooling capacity, high volumetric efficiency, and smooth operation, are widely used in high-capacity cooling applications such as shopping malls and office buildings. However, compared to other types of compressors, scroll compressors have a larger contact area within the compression chamber and require more lubricating oil, resulting in a higher amount of lubricating oil in the compressed refrigerant gas. When refrigerant gas with a high oil content enters the refrigeration system pipelines, it reduces the system's heat exchange efficiency, resulting in lower energy efficiency for the entire refrigeration system.

[0003] In view of this, the present invention is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a compressor and a refrigeration device.

[0005] To solve the above technical problems, an embodiment of the present invention provides a compressor, comprising:

[0006] a housing having an accommodating space formed therein;

[0007] A scroll assembly is disposed in the accommodating space and includes an orbiting scroll and a fixed scroll that mesh with each other. The fixed scroll is disposed in contact with the inner wall of the casing and a first exhaust cavity is formed between its top surface and the top of the casing.

[0008] An upper support frame, which is arranged in contact with the inner wall surface of the casing and is used to support the scroll assembly;

[0009] A drive assembly is disposed below the upper support frame and is used to drive the scroll assembly. A second exhaust chamber is formed between the drive assembly and the upper support frame, and a third exhaust chamber is formed between the drive assembly and the bottom of the casing. An exhaust pipe communicating with the second exhaust chamber is provided on the casing.

[0010] An oil-gas separation component includes an oil distribution pipe arranged on the casing and an oil distribution baffle arranged in the first exhaust chamber. The air inlet end of the oil distribution pipe is connected to the first exhaust chamber, and the exhaust end is connected to the second exhaust chamber or the third exhaust chamber. The top surface of the oil distribution baffle is opposite to the air inlet end of the oil distribution pipe, and the bottom surface is opposite to the exhaust port of the vortex assembly. A gap is formed between the side wall surface of the oil distribution baffle and the inner wall surface of the casing.

[0011] In the above technical solution, the oil distribution pipe includes an outer pipe and an inner pipe which are sleeved together;

[0012] A first oil distribution channel is formed in the inner tube, and a second oil distribution channel is formed between the outer tube and the inner tube.

[0013] In the above technical solution, the oil distribution pipe includes a plurality of pipe sections, and a bend is formed between two adjacent pipe sections.

[0014] In the above technical solution, the multiple pipe segments include a first pipe segment and a second pipe segment arranged along the axial direction of the casing, and a third pipe segment and a fourth pipe segment arranged along the radial direction of the casing;

[0015] The first pipe segment, the third pipe segment, the second pipe segment and the fourth pipe segment are connected in sequence, and a bending portion is formed between two adjacent pipe segments, and the bending portion is arc-shaped.

[0016] In the above technical solution, the oil distribution pipe has a first exhaust direction along the radial direction of the casing and a second exhaust direction along the tangential direction of the casing;

[0017] The drive assembly includes a rotor and a stator, wherein the stator includes a stator core, a stator cutting edge and a winding package passing through the stator core;

[0018] When the exhaust end of the oil distribution pipe is connected to the second exhaust chamber, the high-pressure gas discharged from the oil distribution pipe along the first exhaust direction is discharged toward the coil on the upper side of the stator core;

[0019] When the exhaust end of the oil distribution pipe is connected to the third exhaust chamber, the high-pressure gas discharged from the oil distribution pipe along the first exhaust direction is discharged toward the coil on the lower side of the stator core.

[0020] In the above technical solution, the exhaust port of the outer tube exhausts air along the first exhaust direction, and the exhaust port of the inner tube exhausts air along the second exhaust direction.

[0021] In the above technical solution, the outer tube is a metal tube, and the inner tube is connected to the outer tube via a support frame.

[0022] In the above technical solution, a heat sink is further provided on the outside of the oil distribution pipe, and the heat sink is used to reduce the exhaust temperature of the oil distribution pipe.

[0023] In the above technical solution, the heat sink is a plurality of heat dissipation fins attached to the surface of the oil distribution pipe.

[0024] In the above technical solution, the oil separation baffle is a conical plate, which is fixed in the casing by mounting feet. The inner concave surface of the conical plate faces the scroll assembly. The side of the conical plate away from the scroll assembly forms a cone point. The cone point of the oil separation baffle is vertically aligned with the exhaust port of the fixed scroll and the air inlet end of the oil separation pipe.

[0025] A clearance hole is provided on the tapered tube, and an air inlet pipe of the compressor passes through the clearance hole and is connected with the scroll assembly.

[0026] On the other hand, an embodiment of the present invention further provides a refrigeration device, which includes the compressor mentioned above.

[0027] In the above technical solution, the refrigeration equipment is an air conditioner.

[0028] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0029] First, the present invention utilizes a combination of an oil separation baffle and an oil separation pipe to perform multiple oil-gas separations on the compressor exhaust, significantly reducing the oil content in the exhaust, lowering the compressor's oil discharge rate and improving the refrigeration system's energy efficiency. This also alters the flow direction of the gas within the exhaust chamber, shifting it from a vertical downward flow to a spiral upward flow near the drive assembly. This movement allows oil droplets to adhere to the walls of the casing, further reducing the oil content in the gas. This also allows the separated oil to more easily flow back into the oil pool at the bottom of the casing, thus preventing saturation of the oil return channel.

[0030] 2. The embodiment of the present invention adopts an open oil return method (open oil return mainly refers to the oil discharged from the outlet of the oil distribution pipe to the upper surface of the stator of the second exhaust chamber, which flows back to the oil pool below through the stator cut edge). This can make the cross-sectional area of ​​the oil return channel large, and the problem of oil circuit saturation is less likely to occur. In addition, the better oil-gas separation and oil return effects make the oil circulation during the operation of the compressor more stable and less likely to cause oil shortage.

[0031] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0033] Figure 1 It is a schematic diagram of the internal structure of a compressor in the prior art;

[0034] Figure 2 This is a schematic diagram of the first internal structure of a compressor embodiment of the present invention, in which the exhaust end of the oil distribution pipe is connected to the second exhaust chamber;

[0035] Figure 3 This is a schematic diagram of the second internal structure of the compressor embodiment of the present invention, in which the exhaust end of the oil distribution pipe is connected to the third exhaust chamber;

[0036] Figure 4 This is a schematic diagram of the third internal structure of the compressor embodiment of the present invention, in which a heat sink is provided outside the oil distribution pipe;

[0037] Figure 5 Schematic diagram of the three-dimensional perspective structure of the oil distribution pipe in the compressor embodiment of the present invention;

[0038] Figure 6 Schematic diagram of the three-dimensional structure of the oil separation baffle in the compressor embodiment of the present invention;

[0039] Figure 7 This is a schematic diagram of the fourth internal structure of a compressor embodiment of the present invention, showing the flow path of oil and gas in the compressor;

[0040] Figure 8 A schematic diagram of the flow path of oil and gas at the air inlet end of the oil distribution pipe in the main view is shown;

[0041] Figure 9 A schematic diagram showing the flow path of oil and gas at the exhaust end of the oil distribution pipe in the main view state is shown;

[0042] Figure 10 A schematic diagram showing the flow path of oil and gas at the exhaust end of the oil distribution pipe in a top view is shown;

[0043] Figure 1 Middle: 1'-casing, 12'-intake pipe, 21'-orbiting scroll, 22'-stationary scroll, 3'-exhaust chamber, 8'-exhaust pipe.

[0044] Figure 2-10 Middle: 1- casing, 2- scroll assembly, 21- orbiting scroll, 22- stationary scroll, 3- first exhaust chamber, 4- upper support frame, 5- drive assembly, 51- rotor, 52- stator, 521- stator core, 522- stator trimming, 523- winding, 6- second exhaust chamber, 7- third exhaust chamber, 8- exhaust pipe, 9- oil distribution pipe, 91- outer pipe, 92- inner pipe, 93- first oil distribution channel, 94- second oil distribution channel, 10- oil distribution baffle, 101- mounting foot, 102- clearance hole, 11- heat sink fin, 12- intake pipe.

[0045] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] In the description of the present invention, it should be noted that the terms "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "in contact," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0048] The current existing scroll compressor compression chamber intake and exhaust methods are as follows Figure 1 As shown: the refrigerant enters the compressor from the suction pipe 12', is compressed by the movable scroll 21' and the static scroll 22', and is discharged from the exhaust port of the static scroll 22'. After leaving the exhaust port of the static scroll 22', the oil-containing gas diffuses to the exhaust chamber 3 on the upper part of the compressor, and flows along the inner wall of the casing 1', and finally flows downward from the air groove of the static scroll 22' and the air groove of the upper bracket into the cavity above the motor, and is finally discharged from the exhaust pipe 8'. During the entire flow process, the oil droplets contained in the gas are not aggregated and separated, and only a part of the oil droplets can be adsorbed by the wall surface, so that the oil discharge rate of the scroll compressor is high. In the embodiment of the present invention, a combination of an oil separation baffle and an oil separation pipe is used to perform multiple oil and gas separations on the exhaust gas of the compressor, which can greatly reduce the oil content in the exhaust gas, reduce the oil discharge rate of the compressor, and improve the energy efficiency of the refrigeration system. At the same time, the flow direction of the gas in the exhaust chamber is changed, so that the exhaust changes from the original vertical downward flow to a spiral upward flow near the drive component. During the movement, the oil droplets can adhere to the wall of the casing, further reducing the oil content in the gas. At the same time, it also makes it easier for the separated oil to flow back to the oil pool at the bottom of the casing, thereby avoiding the problem of saturation of the oil return channel.

[0049] To further illustrate the technical solution of the present invention, Figure 2-Figure 10 As shown, the following specific embodiments are provided.

[0050] Example 1

[0051] In an embodiment of the present invention, a Figure 2 and Figure 3 The compressor shown includes:

[0052] The housing 1 has an accommodating space formed therein;

[0053] The scroll assembly 2 is disposed in the accommodating space and includes an orbiting scroll 21 and a fixed scroll 22 that mesh with each other. The fixed scroll 22 is disposed in contact with the inner wall of the casing 1 and a first exhaust chamber 3 is formed between its top surface and the top of the casing 1.

[0054] An upper support frame 4 is arranged in contact with the inner wall of the casing 1 and is used to support the scroll assembly 2;

[0055] It is worth noting that the fit mentioned here refers to the outer wall surface of the fixed scroll 22 being completely fitted with the inner wall surface of the casing 1, and the outer wall surface of the upper support frame 4 being completely fitted with the inner wall surface of the casing 1, that is, the fixed scroll air groove between the fixed scroll 22 and the casing 1 and the upper support air groove in the existing compressor are eliminated;

[0056] A drive assembly 5 is disposed below the upper support frame 4 and is used to drive the scroll assembly 2. A second exhaust chamber 6 is formed between the drive assembly 5 and the upper support frame 4, and a third exhaust chamber 7 is formed between the drive assembly 5 and the bottom of the casing 1. An exhaust pipe 8 communicating with the second exhaust chamber 6 is provided on the casing 1;

[0057] The oil-gas separation component includes an oil distribution pipe 9 arranged on the casing and an oil distribution baffle 10 arranged in the first exhaust chamber 3. The air inlet end of the oil distribution pipe 9 is connected to the first exhaust chamber 3, and the exhaust end is connected to the second exhaust chamber 6 or the third exhaust chamber 7. The top surface of the oil distribution baffle 10 is opposite to the air inlet end of the oil distribution pipe 9, and the bottom surface is opposite to the exhaust port of the vortex assembly 2. A gap is formed between the side wall surface of the oil distribution baffle 10 and the inner wall surface of the casing 1.

[0058] In the embodiment of the present invention, an oil distribution pipe 9 and an oil distribution baffle 10 are provided so that the exhaust gas can first collide with the oil distribution baffle 10 when leaving the static vortex plate 22 and then fill the entire first exhaust chamber 3. At the same time, since the outer wall surfaces of the static vortex plate 22 and the upper support frame 4 are both in contact with the inner wall surface of the casing 1, the static vortex plate air groove and the upper support air groove in the prior art are eliminated, so that all gas can only enter the oil distribution pipe and be discharged from near the surface of the drive assembly 5, and then pass through the second exhaust chamber 6 above the entire drive assembly 5 to reach the exhaust pipe 8 for discharge.

[0059] The oil distribution pipe 9 in the embodiment of the present invention is described in detail below:

[0060] Specifically, such as Figure 2 and Figure 3 As shown, the oil distribution pipe 9 includes an outer pipe 91 and an inner pipe 92 which are sleeved together, wherein a first oil distribution channel 93 is formed in the inner pipe 92 , and a second oil distribution channel 94 is formed between the outer pipe 91 and the inner pipe 92 .

[0061] When the compressor is exhausted, the gas discharged from the exhaust port of the static vortex disk 22 first collides with the bottom surface of the oil separation baffle 10, forming a high-pressure area. Then, the oil-containing gas continues to flow along the bottom surface of the oil separation baffle 10. When it flows to the edge of the oil separation baffle 10, the oil droplets in the oil-containing gas will continue to flow sideways due to inertia, while the gas is affected by the low-pressure area at the entrance of the oil separation pipe 9, causing the speed direction to suddenly change to upward flow. Therefore, there is a speed difference between the oil droplets and the gas, causing the oil droplets to gather on the side close to the inner wall of the casing 1 and flow along the inner wall of the casing 1, forming the first oil and gas separation. Afterwards, a layer will be formed on the upper part of the oil separation baffle 10, with high-oil-content gas in the upper layer and low-oil-content gas in the lower layer. When it continues to flow to the oil separation pipe 9, the upper layer of high-oil-content gas will directly enter the outer tube 91, while most of the lower layer of low-oil-content gas enters the inner tube 92, avoiding the two types of oil and gas from mixing again in the oil separation pipe 9, thereby achieving the oil and gas isolation effect. It's worth noting that as the oil-laden gas passes through the gap between oil-separating baffle 10 and compressor casing 1, its velocity is obliquely upward, causing it to flow along the inner wall of casing 1. Simultaneously, due to inertia, the oil droplets concentrate in the upper layer, resulting in a gradient distribution of oil content in the gas, with the upper layer containing a higher oil content. Subsequently, due to the high flow rate, the oil droplets in the upper layer are discharged from the outer tube before they settle, physically separating them from the lower layer of gas, thus achieving the initial oil-gas separation mentioned above.

[0062] In any of the above embodiments, Figure 2 and Figure 3 As shown, the oil distribution pipe 9 includes a plurality of pipe sections, wherein a bend is formed between two adjacent pipe sections.

[0063] Specifically, the multiple pipe segments include a first pipe segment and a second pipe segment arranged along the axial direction of the casing 1, and a third pipe segment and a fourth pipe segment arranged along the radial direction of the casing 1; wherein the first pipe segment, the third pipe segment, the second pipe segment and the fourth pipe segment are connected in sequence and a bending portion is formed between two adjacent pipe segments, and the bending portion is arc-shaped (that is, a 90° bending angle is formed between two adjacent pipe segments).

[0064] After the oil and gas enter the double-layer casing 8, they flow along the oil distribution pipe 9. At the 90° bend of the oil distribution pipe 9, inertia causes the oil droplets to gather again outside the bend, resulting in a second oil-gas separation inside the outer pipe 91. As a result, three types of gas with different oil contents form throughout the oil distribution pipe 9. The high-oil gas, due to its higher oil content, may also contain liquid oil.

[0065] In any of the above embodiments, Figure 2 and Figure 3 As shown, the exhaust end of the oil distribution pipe 9 has a first exhaust direction along the radial direction of the casing 1 and a second exhaust direction along the tangential direction of the casing 1;

[0066] The driving assembly 5 includes a rotor 51 and a stator 52 . The stator 52 includes a stator core 521 , a stator trim 522 , and a coil 523 passing through the stator core 521 .

[0067] When the exhaust end of the oil distribution pipe 9 is connected to the second exhaust chamber 6, the high-pressure gas discharged from the oil distribution pipe 9 along the first exhaust direction is discharged toward the coil 523 on the upper side of the stator core 521;

[0068] When the exhaust end of the oil distribution pipe 9 is connected to the third exhaust chamber 7 , the high-pressure gas discharged from the oil distribution pipe 9 along the first exhaust direction is discharged toward the coil 523 on the lower side of the stator core 521 .

[0069] When the oil distribution pipe 9 is connected to the second exhaust chamber 6 and the gas moves to the outlet of the oil distribution pipe 9, the liquid oil in the oil and gas discharged along the first exhaust direction of the oil distribution pipe 9 can flow back to the oil pool below along the stator cut edge 522 opened on the outer side of the stator core 521. The gas portion then impacts the porous structure of the winding 523, causing oil droplets to adhere to the copper wire of the winding and flow back along the copper wire to the oil pool below the casing 1, forming a third oil and gas separation. The oil and gas discharged along the second exhaust direction of the oil distribution pipe 9 flows out along the tangential direction of the casing 1, the same direction of rotation as the compressor rotor, allowing the gas to flow upward in a spiral close to the inner wall of the casing 1. The oil droplets in the gas can adhere to the inner wall of the casing 1 due to inertia, thus forming a fourth oil and gas separation.

[0070] It should be noted that when the oil distribution pipe 9 is connected to the third exhaust chamber 7, the oil return capacity of the oil distribution pipe 9 is stronger at this time. After the third oil and gas separation of the coil 523, the oil droplets can directly fall into the oil pool below; at the same time, the gas flows upward through the air groove of the stator core 521, which can cool the motor and is beneficial to the stable operation of the compressor. It should also be noted that if the heating of the motor is not considered, all components in the compressor cavity should be at the exhaust temperature of the compression chamber (high temperature). In fact, the motor will generate a lot of heat during operation, causing its temperature to continue to rise and exceed the exhaust temperature (higher temperature). Therefore, there is still a temperature difference between the exhaust and the motor. The exhaust can cool the motor, and the cooling effect increases with the increase of the gas flow through the motor air groove. Setting the pipeline outlet below the motor can significantly increase the refrigerant flow through the motor stator air groove and enhance the heat exchange effect.

[0071] In any of the above embodiments, Figure 5As shown, the exhaust port of the outer tube 91 exhausts along the first exhaust direction mentioned above, and the exhaust port of the inner tube exhausts along the second exhaust direction mentioned above. Specifically, the medium and high oil content gases in the outer tube 91 are discharged along the first exhaust direction (i.e., the radial direction of the compressor), and the liquid oil therein can flow back to the oil pool below along the stator cutting edge 522 opened on the outside of the stator core 521, while the gas portion impacts the porous structure of the wire wrap 523, causing oil droplets to adhere to the copper wire of the wire wrap 523 and flow back to the oil pool below along the copper wire, forming a third oil-gas separation. The outlet of the inner tube 92 adopts a bending design, so that the low oil content gas flows out along the tangent direction of the casing 1, which is the same as the rotation direction of the compressor rotor, so that the gas can flow upward in a spiral close to the inner wall of the casing 1. The oil droplets therein can adhere to the inner wall surface of the casing 1 due to inertia, forming a fourth oil-gas separation.

[0072] In summary, after multiple oil-gas separations, the oil content of the gas entering the exhaust pipe 8 will be greatly reduced, which will reduce the oil discharge rate of the compressor, which is beneficial to improving the energy efficiency of the refrigeration system. At the same time, it also avoids the oil shortage of the compressor caused by a large amount of lubricating oil being discharged from the compressor.

[0073] It is worth noting that, to facilitate the connection of the oil distribution pipe 9 to the casing 1, the outer pipe 9 is configured as a metal pipe, thereby facilitating welding to the casing 1. The material of the inner pipe 92 is not limited to a rigid pipe, but can also be a flexible pipe, secured by a sleeve support frame. The sleeve support frame only provides circumferential support and does not block the flow of gas. The number of sleeve supports is not limited to two, as long as the outer pipe 91 and the inner pipe 92 can be connected together without affecting the normal exhaust of the oil distribution pipe 9. It is worth noting that when the inner pipe 92 is a rigid pipe, only a few sleeve supports 83 can be used for securing. When the inner pipe 92 is a flexible pipe, not only can the sleeve support frame be used for securing, but a raised structure can also be provided on the inner wall of the outer pipe 91 to provide multiple internal support points for the flexible pipe. The specific connection method between the outer pipe 91 and the inner pipe 92 is not limited in this embodiment.

[0074] In addition, a heat sink can be added to the outside of the oil distribution pipe 9 to reduce the exhaust temperature, which is beneficial to improving the temperature conditions inside the compressor and increasing the service life of the motor; at the same time, it can also reduce the load on the condenser in the refrigeration system and improve the energy efficiency of the refrigeration system.

[0075] Specifically, such as Figure 4 As shown, the heat sink mentioned above is a plurality of heat dissipation fins 11 attached to the surface of the oil distribution pipe 9.

[0076] The oil separation baffle 10 in the embodiment of the present invention is described in detail below:

[0077] like Figure 6As shown, the oil separator baffle 10 is a conical plate, which is fixed to the casing 1 by mounting feet 101. The concave surface of the conical plate faces the scroll assembly 2, and a taper point is formed on the side of the conical plate away from the scroll assembly 2. The taper point of the oil separator baffle 10 is vertically aligned with the exhaust port of the fixed scroll plate 22 and the intake end of the oil separator pipe 9. The conical plate also has a clearance hole 102, through which the compressor intake pipe 12 is connected to the scroll assembly 2. It is worth noting that in actual operation, the bottom and top surfaces of the conical baffle 10 are not connected, and the mounting feet 101 are used as a fixing measure.

[0078] In summary, in the embodiment of the present invention, by providing the oil separation pipe 9 and the oil separation baffle 10, the oil and gas in the compressor can undergo a total of four oil droplet aggregation processes during the entire flow process, forming gas layers with different oil contents or liquid oil accumulation layers, which is called the oil and gas separation process. Figure 7-10 As shown:

[0079] Figure 8 This is a schematic diagram of the first oil-gas separation in the first exhaust chamber 3. The gas discharged from the exhaust port of the static vortex disk 22 first collides with the oil separation baffle 10 to form a high-pressure area. Then the oil-containing gas continues to flow along the surface of the oil separation baffle 10. When it flows to the edge of the oil separation baffle 10, the oil droplets in the oil-containing gas will continue to flow sideways due to inertia, while the gas is affected by the low-pressure area at the inlet of the oil separation pipe 9, causing the speed direction to suddenly change to upward flow. Therefore, a speed difference is generated between the oil droplets and the gas, causing the oil droplets to gather on the side close to the inner wall of the casing and flow along the surface of the casing 1, forming the first oil-gas separation.

[0080] Then, stratification forms above the oil-separating baffle 10, with high-oil-content gas in the upper layer and low-oil-content gas in the lower layer. As the gas continues to flow to the oil distribution pipe 9, the high-oil-content gas in the upper layer directly enters the outer pipe 91, while the lower, low-oil-content gas mostly enters the inner pipe 92, preventing the two types of gas from mixing again within the oil distribution pipe 9. After entering the oil distribution pipe 9, the gas flows along the pipe. At the 90° bend, inertia causes the oil droplets to gather again outside the bend, resulting in a second oil-gas separation within the outer pipe 91.

[0081] Therefore, three types of gases with different oil contents are formed in the entire oil distribution pipe 9. Among them, the high-oil-content gas may also have liquid oil accumulation inside due to its higher oil content.

[0082] like Figure 9 and Figure 10As shown, when the gas moves to the outlet of the oil distribution pipe 9, the medium and high oil content gas in the outer tube 91 is discharged along the radial direction of the casing 1 (the first exhaust direction), and the liquid accumulated oil therein can flow back to the oil pool below along the stator cutting edge 522 opened on the outside of the stator core 521, while the gas part impacts the wire package 523 with a porous structure, causing the oil droplets to adhere to the copper wire of the wire package 523 and flow back to the oil pool below along the copper wire, forming a third oil and gas separation.

[0083] Since the outlet of the inner tube 92 adopts a bent design, the low-oil gas in the inner tube 92 can flow out along the tangential direction of the casing 1, so that the gas can flow upward in a spiral shape close to the inner wall of the casing 1. The oil droplets therein can adhere to the inner wall of the casing 1 due to inertia, forming the fourth oil-gas separation.

[0084] In summary, after multiple oil-gas separations, the oil content of the gas entering the exhaust pipe 8 will be greatly reduced, which will reduce the oil discharge rate of the compressor, which is beneficial to improving the energy efficiency of the refrigeration system. At the same time, it also avoids the oil shortage of the compressor caused by a large amount of lubricating oil being discharged from the compressor.

[0085] On the other hand, an embodiment of the present invention further provides a refrigeration device, which includes the compressor mentioned above. Specifically, the refrigeration device is an air conditioner.

[0086] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A compressor, characterized in that: include: A housing (1) having an accommodating space formed therein; A scroll assembly (2) is arranged in the accommodating space, comprising an orbiting scroll (21) and a fixed scroll (22) that mesh with each other, wherein the fixed scroll (22) is arranged in contact with the inner wall surface of the casing (1) and a first exhaust cavity (3) is formed between its top surface and the top of the casing (1); An upper support frame (4) is arranged in contact with the inner wall surface of the casing (1) and is used to support the scroll assembly (2); a drive assembly (5) disposed below the upper support frame (4) and used to drive the vortex assembly (2); a second exhaust chamber (6) is formed between the drive assembly (5) and the upper support frame (4); and a third exhaust chamber (7) is formed between the drive assembly (5) and the bottom of the housing (1); and an exhaust pipe (8) communicating with the second exhaust chamber (6) is provided on the housing (1); An oil-gas separation component, comprising an oil separation pipe (9) arranged on a casing and an oil separation baffle (10) arranged in the first exhaust chamber (3), wherein the air inlet end of the oil separation pipe (9) is communicated with the first exhaust chamber (3), and the air discharge end is communicated with the second exhaust chamber (6) or the third exhaust chamber (7), the top surface of the oil separation baffle (10) is opposite to the air inlet end of the oil separation pipe (9), the bottom surface is opposite to the exhaust port of the vortex assembly (2), and a gap is formed between the side wall surface of the oil separation baffle (10) and the inner wall surface of the casing (1); The oil distribution pipe (9) comprises an outer pipe (91) and an inner pipe (92) which are sleeved together; A first oil distribution channel (93) is formed in the inner tube (92), and a second oil distribution channel (94) is formed between the outer tube (91) and the inner tube (92); The oil distribution pipe (9) has a first exhaust direction for exhausting along the radial direction of the casing (1) and a second exhaust direction for exhausting along the tangential direction of the casing (1), the exhaust port of the outer pipe (91) exhausts along the first exhaust direction, and the exhaust port of the inner pipe exhausts along the second exhaust direction; The drive assembly (5) comprises a rotor (51) and a stator (52), wherein the stator (52) comprises a stator core (521), a stator cut edge (522), and a coil (523) passing through the stator core (521); When the exhaust end of the oil distribution pipe (9) is connected to the second exhaust chamber (6), the high-pressure gas discharged from the oil distribution pipe (9) along the first exhaust direction is discharged toward the coil (523) on the upper side of the stator core (521); When the exhaust end of the oil distribution pipe (9) is connected to the third exhaust chamber (7), the high-pressure gas discharged from the oil distribution pipe (9) along the first exhaust direction is discharged toward the coil (523) on the lower side of the stator core (521).

2. The compressor according to claim 1, characterized in that The oil distribution pipe (9) comprises a plurality of pipe sections, and a bend is formed between two adjacent pipe sections.

3. The compressor according to claim 2, characterized in that The plurality of pipe segments include a first pipe segment and a second pipe segment arranged along the axial direction of the casing (1), and a third pipe segment and a fourth pipe segment arranged along the radial direction of the casing (1); The first pipe segment, the third pipe segment, the second pipe segment and the fourth pipe segment are connected in sequence and a bending portion is formed between two adjacent pipe segments. The bending portion is arc-shaped.

4. The compressor according to claim 1, characterized in that The outer tube (91) is a metal tube, and the inner tube (92) is connected to the outer tube (91) via a support frame.

5. The compressor according to claim 1, characterized in that A heat sink is also provided on the outside of the oil distribution pipe (9), and the heat sink is used to reduce the exhaust temperature of the oil distribution pipe (9).

6. The compressor according to claim 5, characterized in that The heat sink is a plurality of heat dissipation fins (11) attached to the surface of the oil distribution pipe (9).

7. The compressor according to claim 1, characterized in that The oil separation baffle (10) is a conical plate, which is fixed in the casing (1) by means of mounting legs (101), the inner concave surface of the conical plate faces the scroll assembly (2), a conical point is formed on the side of the conical plate away from the scroll assembly (2), and the position of the conical point of the oil separation baffle (10) is vertically aligned with the exhaust port of the fixed scroll disk and the air inlet end of the oil separation pipe; A clearance hole (102) is provided on the conical plate, and the air intake pipe (12) of the compressor passes through the clearance hole (102) and is connected to the scroll assembly (2).

8. A refrigeration device, characterized in that: The compressor comprises the compressor according to any one of claims 1 to 7.

9. The refrigeration equipment according to claim 8, characterized in that The refrigeration equipment is an air conditioner.

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