Oil-gas separation assembly and scroll compressor

Abstract

The oil-gas separation assembly comprises a separation shell, a closure baffle and an exhaust pipe, the separation shell comprises an oil discharge outlet and an air inlet, an included angle is formed between the air inlet and a first air outlet, a second air outlet is formed in the first end of the exhaust pipe, and the separation shell is provided with the oil discharge outlet; the cut-off baffle is sleeved on the exhaust pipe; on the horizontal projection, the second end of the exhaust pipe at least covers the end, close to the second air outlet, of the air inlet, and the end, close to the air inlet, of the closure baffle is located between the second air outlet and the air inlet. The oil-gas separation assembly can simply and efficiently achieve separation of oil and gas, the oil discharge rate of the compressor is reduced, loss of refrigeration oil of the compressor is avoided, and the reliability of the compressor is improved. The oil-gas separation assembly is simple in overall structure, convenient to assemble and low in cost, and the problem that the oil discharge rate of an existing scroll compressor is continuously increased can be solved under the condition that the manufacturing cost is not additionally increased.

Description

Technical Field

[0001] The present application relates to the technical field of compressor devices, and in particular to an oil-gas separation component and a scroll compressor. Background Art

[0002] Scroll compressors are widely used in refrigeration systems due to their large cooling capacity and low noise. The structural feature of the scroll compressor is that the moving plate is set at the top of the compressor. After the compressor is exhausted, the refrigerant gas and the refrigeration oil are both on the high-pressure side, resulting in a high oil discharge rate at the exhaust port of the compressor. In order to reduce the oil discharge rate, existing compressors usually rotate at high speed by designing a balance block in the middle of the compressor, so that the oil droplets mixed with oil and gas accelerate the rotation, and the denser refrigeration oil is separated from the gas under the centrifugal effect, and the oil droplets are collected through the shell. Under the sedimentation effect, the oil droplets return to the oil pool at the bottom of the compressor through the flow groove opened by the motor, thereby reducing the oil discharge rate of the compressor.

[0003] Due to market demand and consumption upgrades, air conditioning system manufacturers are also increasing their requirements for compressor unit speeds, from 130rps to 160rps or even higher. The oil discharge rate of the compressor is mainly affected by the refrigeration flow rate and the amount of refrigeration oil. When the compressor speed and displacement increase, the refrigeration flow rate increases rapidly, and the exhaust speed of the refrigerant gas increases, which intensifies the collision between the gas and the oil droplets. The oil droplets will be scattered, making the gas discharged from the static plate exhaust port appear misty. When the refrigerant gas with refrigeration oil is running at high speed, the oil droplets will be continuously discharged from the compressor body. In addition, the displacement of the scroll compressor continues to increase, which also makes the oil discharge rate of the compressor continue to increase, resulting in more refrigeration oil being discharged from the compressor, and the refrigeration oil at the bottom of the compressor is reduced, which reduces the reliability of the compressor.

[0004] Therefore, it is necessary to design an oil-gas separation component to solve the above problems. Summary of the invention

[0005] In view of this, in order to overcome the defects of the prior art, the present invention provides an oil-gas separation component and a scroll compressor, which effectively solves the problem of the conventional scroll compressor having a continuously increasing oil discharge rate and thus reducing reliability.

[0006] According to a first aspect of the present invention, there is provided an oil-gas separation component for a scroll compressor, the scroll compressor comprising a first air outlet, wherein the oil-gas separation component comprises a separation shell, a shut-off baffle and an exhaust pipe, the separation shell comprising an oil drain port and an air inlet connected to the first air outlet, an angle is formed between a center line of the air inlet and a center line of the first air outlet, a first end of the exhaust pipe passes through one end of the separation shell to form a second air outlet, the separation shell is provided with the oil drain port at the other end of one end of the second air outlet, and the shut-off baffle is sleeved on the exhaust pipe; in horizontal projection, the second end of the exhaust pipe at least covers an end of the air inlet close to the second air outlet, and an end of the shut-off baffle close to the air inlet is located between the second air outlet and the air inlet.

[0007] Preferably, the interior of the exhaust pipe is hollow, and the second end of the exhaust pipe is arranged between the air inlet and the oil drain port; the outer side wall of the exhaust pipe is formed as a circular arc surface.

[0008] Preferably, the inner diameter of the exhaust pipe gradually decreases along the first direction.

[0009] Preferably, a trapezoidal passing portion is provided inside the second end of the exhaust pipe, and an inner diameter of the trapezoidal passing portion gradually decreases along the first direction.

[0010] Preferably, the oil-gas separation component further comprises an oil drain pipe, a first end of the oil drain pipe is connected to the oil drain port, and a second end of the oil drain pipe is arranged in the oil pool of the scroll compressor.

[0011] Preferably, the angle between the center line of the air inlet and the center line of the first air outlet is 10 degrees to 50 degrees.

[0012] Preferably, the oil drain port is arranged at an end portion of the separation shell in the second direction, and the oil drain port and the second air outlet are arranged in sequence along the second direction.

[0013] Preferably, the intercepting baffle is obliquely sleeved on the exhaust pipe, and the center line of the intercepting baffle is parallel to the center line of the air inlet.

[0014] Preferably, the scroll compressor further includes a stator and a compressor housing, the oil-gas separation assembly and the stator are both arranged inside the compressor housing, the first air outlet is arranged in the middle of the stator, and the oil-gas separation assembly is detachably arranged on the stator.

[0015] According to a second aspect of the present invention, a scroll compressor is provided, wherein the scroll compressor comprises the oil-gas separation assembly as described above.

[0016] According to the oil-gas separation component of the present invention, through the cooperation of the separation shell, the interception baffle and the exhaust pipe, the oil and gas can be separated simply and efficiently, and the separated oil is returned to the oil pool of the compressor, so that the separated gas is discharged through the compressor shell, and finally the oil discharge rate of the compressor is reduced, the loss of the compressor refrigeration oil is avoided, and the reliability of the compressor is increased. The oil-gas separation component has a simple overall structure, is easy to assemble and has a low cost. Without additionally increasing the manufacturing cost, it can solve the problem of the increasing oil discharge rate of the existing scroll compressor.

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a scroll compressor according to a first embodiment of the present invention is shown;

[0020] Figure 2 A schematic structural diagram showing an oil-gas separation assembly and a static disk according to a first embodiment of the present invention;

[0021] Figure 3 Another structural schematic diagram showing an oil-gas separation assembly and a stator according to a first embodiment of the present invention;

[0022] Figure 4 A schematic diagram showing the gas flow direction in an oil-gas separation assembly according to a first embodiment of the present invention;

[0023] Figure 5 A schematic structural diagram of a scroll compressor according to a second embodiment of the present invention is shown;

[0024] Figure 6 A schematic structural diagram showing an oil-gas separation assembly and a stator according to a second embodiment of the present invention;

[0025] Figure 7 A schematic diagram showing the gas flow direction in an oil-gas separation assembly according to a second embodiment of the present invention;

[0026] Figure 8 A schematic structural diagram of a scroll compressor according to a third embodiment of the present invention is shown;

[0027] Fig. 9 A schematic structural diagram showing an oil-gas separation assembly and a static disk according to a third embodiment of the present invention;

[0028] Fig.10 A schematic diagram showing the gas flow direction in an oil-gas separation assembly according to a third embodiment of the present invention.

[0029] Figure markings: 1-separation shell; 101-air inlet; 102-oil drain port; 2-shutoff baffle; 3-exhaust pipe; 301-second air outlet; 302-trapezoidal passing portion; 4-static disk; 401-first air outlet; 5-oil drain pipe; 6-compressor shell; S1-first direction; S2-second direction; L1-first center line; L2-second center line; L3-third center line. DETAILED DESCRIPTION

[0030] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0031] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] According to a first aspect of the present invention, there is provided an oil-gas separation component, such as Figures 1 to 10 As shown, the oil-gas separation component is used for a scroll compressor, and the oil-gas separation component can effectively reduce the oil discharge rate of the compressor and increase the reliability of the compressor. The oil-gas separation component includes a separation housing 1, a flow cutoff baffle 2 and an exhaust pipe 3.

[0035] In the following description, reference will be made to Figures 1 to 10 The detailed structures of the separation housing 1, the interception baffle 2 and the exhaust pipe 3 of the oil-gas separation assembly are specifically described. In addition, in the description of the embodiment, two directions are also involved, namely the first direction S1 and the second direction S2. Figure 6 and Fig. 9 As shown, the first direction S1 can be understood as Figure 6 and Fig. 9 The second direction S2 can be understood as the direction from left to right in Figure 6 and Fig. 9 From bottom to top, the first direction S1 and the second direction S2 may be perpendicular to each other. It can also be understood that the first direction S1 is Figure 6 and Fig. 9 The horizontal direction in the second direction S2 is Figure 6 and Fig. 9 The vertical direction in .

[0036] like Figure 1 , Figure 5 and Figure 8 As shown, in the embodiment, the scroll compressor that does not include an oil-gas separation component can be a compressor commonly used in the prior art, and its structure, principle, use and assembly method are all known to those skilled in the art, and will not be repeated here. The scroll compressor may include a stator 4 and a compressor housing 6, the stator 4 is arranged at the top of the interior of the compressor housing 6, and a first air outlet 401 is opened in the middle of the stator 4, and the oil-gas mixture generated when the scroll compressor is working is discharged from the first air outlet 401 of the stator 4. The oil-gas separation component is installed inside the compressor housing 6 and is located on the upper part of the stator 4. At the same time, the oil-gas separation component is directly connected to the first air outlet 401 of the stator 4, so that the oil-gas mixture first passes through the oil-gas separation component and then is discharged through the exhaust pipe of the compressor.

[0037] Furthermore, the oil-gas separation component includes a separation shell 1, a cut-off baffle 2 and an exhaust pipe 3. The separation shell 1 is the outer shell of the oil-gas separation component, which is used to accommodate the cut-off baffle 2 and the exhaust pipe 3, and is convenient for the separation of the oil-gas mixture. The cut-off baffle 2 plays a role of interception, which can prevent the oil-gas mixture from being discharged directly and can limit the movement path of the oil-gas mixture. After the oil-gas mixture is separated, the gas that does not contain refrigerant oil passes through the inside of the exhaust pipe 3 and enters the compressor shell 6, and is finally discharged through the exhaust pipe of the compressor.

[0038] Specifically, the separation shell 1 includes an oil drain port 102 and an air inlet 101 connected to a first air outlet 401. The first end of the exhaust pipe 3 passes through the end of the separation shell 1 to form a second air outlet 301. In this way, the actual movement path of the gas is: the oil-gas mixture enters the separation shell 1 from the first air outlet 401 and the air inlet 101, and collides with the exhaust pipe 3 to produce a rotating flow motion, so that the oil and gas are centrifuged and separated from each other. The separated oil flows back to the oil pool of the compressor from the oil drain port 102, and the separated gas enters the compressor shell 6 from the second air outlet 301.

[0039] In order to make the oil-gas mixture generate a rotating flow motion, an angle (such as Figure 3 As shown, the center line of the air inlet 101 can be Figure 3 The first center line L1 in the figure, the center line of the first air outlet 401 can be Figure 3 The second center line L2 in the middle allows the oil-gas mixture to enter the separation shell 1 from the tangential direction.

[0040] The air inlet 101 faces the exhaust pipe 3, so that the oil-gas mixture entering from the tangential direction collides with the exhaust pipe 3 to form a rotating flow. Figures 1 to 10 In the horizontal projection shown in the figure, the exhaust pipe 3 includes two ends, namely a first end passing through the separation shell 1 and a second end arranged inside the separation shell 1. Correspondingly, the air inlet 101 may also include a first end close to the second air outlet 301 and a second end close to the oil drain port 102. The second end of the exhaust pipe 3 at least covers the first end of the air inlet 101, so that the oil-gas mixture entering from the air inlet 101 can directly contact the outer wall of the exhaust pipe 3.

[0041] Since it is necessary to separate and drain the oil, the oil outlet 102 is arranged opposite to the second gas outlet 301, and the gas and oil are discharged from, for example, Figure 1In order to prevent the gas from escaping to the second gas outlet 301 when entering from the gas inlet 101, a flow cut-off baffle 2 is provided, which is sleeved on the exhaust pipe 3 and is provided between the second gas outlet 301 and the gas inlet 101 (refer to Figure 2 , Figure 6 and Fig. 9 In the embodiment, the intercepting baffle 2 is arranged obliquely, so in fact part of the intercepting baffle 2 is located in the air inlet 101, so the "between" here can be understood as the setting position of the intercepting baffle 2 does not exceed the setting position of the air inlet 101) to block the oil-gas mixture and limit the movement of the oil-gas mixture. It can also be understood that in the case of Figures 1 to 10 In the horizontal projection shown in the figure, the shut-off baffle 2 is divided into two parts by the exhaust pipe 3, namely a first part located at the upper part of the separation shell 1 and a second part located at the lower part of the separation shell 1, wherein the second part of the shut-off baffle 2 located at the lower part is arranged between the second air outlet 301 and the air inlet 101 to ensure that the oil-gas mixture entering from the air inlet 101 cannot escape from the second air outlet 301 and can only directly contact the outer wall of the exhaust pipe 3.

[0042] The oil-gas separation component can simply and efficiently separate oil and gas through the cooperation of the separation shell 1, the interception baffle 2 and the exhaust pipe 3, and the separated oil is returned to the oil pool of the compressor, so that the separated gas is discharged through the compressor shell 6, and finally the oil discharge rate of the compressor is reduced, the loss of the compressor refrigeration oil is avoided, and the reliability of the compressor is increased. The oil-gas separation component has a simple overall structure, is easy to assemble and has a low cost. Without additionally increasing the manufacturing cost, it can solve the problem of the increasing oil discharge rate of the existing scroll compressor.

[0043] Preferably, if Figure 2 , Figure 6 and Fig. 9 As shown, in the embodiment, the interior of the exhaust pipe 3 is hollow to facilitate the passage of gas.

[0044] Preferably, if Figure 2 , Figure 6 and Fig. 9As shown, in the embodiment, the second end of the exhaust pipe 3 is arranged in the middle area of ​​the separation shell 1, and the air inlet 101 is arranged near the second air outlet 301, so that the oil-gas mixture enters from the tangential direction and performs a rotational flow along the wall of the exhaust pipe 3, so that the refrigerant oil with a higher density is separated from the mixed gas and gathered on the right side of the oil-gas separation component, and the gathered oil droplets directly return to the oil pool at the bottom of the compressor. Since the gas on the outer wall of the exhaust pipe 3 moves at a high speed during the rotational flow, a negative pressure is formed in the central area of ​​the oil-gas separation component, and the refrigerant gas with a lower density is quickly discharged from the exhaust pipe 3. Therefore, in order to correspond to the negative pressure formed in the central area, the second end of the exhaust pipe 3 is arranged in the middle area of ​​the separation shell 1. Further, in order to facilitate the gas to form a rotational flow, the outer wall of the exhaust pipe 3 facing the air inlet 101 is formed as an arc surface.

[0045] like Figure 2 , Figure 6 and Fig. 9 As shown, in the embodiment, three embodiments of the oil-gas separation assembly are provided, and the difference between the three embodiments is that the specific structure of the exhaust pipe 3 is different.

[0046] like Figures 1 to 4 As shown in the first embodiment, the exhaust pipe 3 is formed into a cylindrical shape, and the outer wall of the cylindrical exhaust pipe 3 is formed into an arc surface. The intercepting baffle 2 is sleeved on the outer wall of the cylindrical shape. Figure 4 As shown, the oil-gas mixture enters the interior of the separation housing 1 from the tangential direction, directly collides with the outer wall of the exhaust pipe 3 along the tangential direction, and forms a rotating flow along the arc surface. In this process, the oil with a higher density is separated, falls, and is discharged along the oil discharge port 102. The gas with a lower density is attracted due to the negative pressure in the central area, and finally flows from the interior of the exhaust pipe 3 to the second outlet 301 and is discharged. The cylindrical structure of the exhaust pipe 3 is to form a circular arc surface corresponding to the outer wall of the exhaust pipe 3 facing the air inlet 101.

[0047] like Figures 5 to 7 As shown in FIG. 1 , in the second embodiment, the cross section of the exhaust pipe 3 is formed into a trapezoid. Figure 6 As shown, the inner diameter of the exhaust pipe 3 gradually decreases along the first direction S1. The movement direction of the oil-gas mixture is substantially the same as that of the first embodiment, except that: since the cross-sectional area of ​​the exhaust pipe 3 gradually decreases, the flow rate of the separated gas is accelerated, so that the gas flows faster in the exhaust pipe 3, thereby ensuring the gas outlet efficiency of the scroll compressor.

[0048] like Figures 8 to 10As shown, in the third embodiment, a trapezoidal passage portion 302 is provided inside the second end of the exhaust pipe 3, and the inner diameter of the trapezoidal passage portion 302 gradually decreases along the first direction S1 (the first direction S1 here is the same as the first direction S1 in the second embodiment). The movement direction of the oil-gas mixture is roughly the same as that of the second embodiment, except that the first end of the exhaust pipe 3 is formed into a cylindrical shape, and the cross-section of the second end is formed into a truncated cone shape. Such a design can ensure the size of the second gas outlet 301, so that the second gas outlet 301 can pass more gas, and can also increase the flow rate of the gas.

[0049] The above three methods can ensure the separation of oil and gas in the oil-gas mixture and reduce the oil discharge rate of the compressor.

[0050] Preferably, if Figure 2 , Figure 6 and Fig. 9 As shown, in an embodiment, the oil-gas separation assembly may further include an oil drain pipe 5, a first end of the oil drain pipe 5 is connected to the oil drain port 102, and a second end of the oil drain pipe 5 is disposed in the oil pool (not shown) of the scroll compressor. Since the oil pool of the scroll compressor is located at the bottom of the scroll compressor, and the oil-gas separation assembly is located at the top of the scroll compressor, an additional oil drain pipe 5 is provided to ensure smooth flow of the oil.

[0051] Preferably, if Figure 2 , Figure 6 and Fig. 9 As shown, in the embodiment, the center line of the air inlet 101 (ie Figure 3 The first center line L1 in the middle) and the center line of the first air outlet 401 (i.e. Figure 3 The angle between the second center line L2) is 10 degrees to 50 degrees. 10 degrees to 50 degrees is a more suitable tangential angle, which can ensure effective oil and gas separation and the speed of the rotating flow movement.

[0052] Preferably, if Figure 6 As shown, in the embodiment, the oil drain port 102 is disposed at the end of the separation housing 1 in the second direction S2, and the oil drain port 102 and the second air outlet 301 are sequentially disposed along the second direction S2. Figure 6 In the embodiment, the oil outlet 102 is located at a position lower than the second gas outlet 301 . Since the mass of oil is larger than that of gas, the separated oil will sink due to gravity and then flow to the oil outlet 102 at a lower position.

[0053] Preferably, if Figure 3 As shown, in the embodiment, the intercepting baffle 2 is obliquely sleeved on the exhaust pipe 3, and the center line of the intercepting baffle 2 is parallel to the center line of the air inlet 101. Figure 3Since the intercepting baffle 2 needs to block the gas flow and avoid interfering with the rotating flow motion, the center line of the intercepting baffle 2 is parallel to the center line of the air inlet 101.

[0054] Preferably, in the embodiment, the oil-gas separation assembly is detachably arranged on the stator plate 4. The separation housing 1 of the oil-gas separation assembly may be provided with a plurality of connection holes, and the positions of the stator plate 4 corresponding to the separation housing 1 are also provided with a plurality of connection holes. The oil-gas separation assembly may be detachably installed on the stator plate 4 by means of a connection piece such as a connection pin or a connection bolt, and the sealing of the separation housing 1 may be ensured during installation. In addition, the oil drain pipe 5 of the oil-gas separation assembly does not need to be specially fixed, and can be directly placed inside the compressor housing 6.

[0055] The oil-gas separation assembly is used and assembled in the following manner: align the air inlet 101 of the oil-gas separation assembly with the first air outlet 401 of the static plate 4 and connect them using a connector. The separation housing 1, interception baffle 2 and exhaust pipe 3 of the oil-gas separation assembly can be an integrated structure or welded. Afterwards, the scroll compressor starts, and the compressed gas is discharged from the first air outlet 401 of the static disk 4. The compressed gas may be an oil-gas mixture. Whether it is an oil-gas mixture or a compressed refrigerant gas (hereinafter described as an oil-gas mixture), it enters the interior of the separation shell 1 from the air inlet 101 of the separation shell 1. Since there is an angle between the center line of the air inlet 101 and the center line of the first air outlet 401, the oil-gas mixture enters the interior of the separation shell 1 from the tangential direction and collides with the exhaust pipe 3 with a circular arc surface, and then forms a rotating flow motion, so that the refrigerant oil with a higher density is separated from the mixed gas. After that, the oil gathers in the lower right part of the separation shell 1 and returns to the oil pool at the bottom of the compressor from the oil outlet 102 and the oil outlet 5. Since there is high-speed rotating gas on the outer wall of the exhaust pipe 3, a negative pressure is formed in the central area of ​​the separation shell 1, which can quickly discharge the refrigerant gas with a lower density from the exhaust pipe 3.

[0056] The oil-gas separation component can simply and efficiently separate oil and gas through the cooperation of the separation shell, the interception baffle and the exhaust pipe, and make the separated oil return to the oil pool of the compressor, so that the separated gas is discharged through the compressor shell, and finally the oil discharge rate of the compressor is reduced, the loss of the compressor refrigeration oil is avoided, and the reliability of the compressor is increased. The oil-gas separation component has a simple overall structure, is easy to assemble and has a low cost. Without additionally increasing the manufacturing cost, it can solve the problem of the increasing oil discharge rate of the existing scroll compressor.

[0057] In addition, according to a second aspect of the present invention, a scroll compressor is provided, the scroll compressor comprising the oil-gas separation assembly as described above. During use, the scroll compressor can effectively reduce the oil discharge rate by installing the oil-gas separation assembly, and is suitable for scroll compressors with high rotation speeds.

[0058] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An oil-gas separation assembly for a scroll compressor, the scroll compressor comprising a first air outlet, characterized in that: The oil-gas separation assembly comprises a separation shell, a cut-off baffle and an exhaust pipe, the separation shell comprises an oil discharge port and an air inlet connected to the first air outlet, an angle is formed between the center line of the air inlet and the center line of the first air outlet, a first end of the exhaust pipe passes through one end of the separation shell to form a second air outlet, the oil discharge port is arranged at the other end of the separation shell where the second air outlet is arranged, and the cut-off baffle is sleeved on the exhaust pipe; In horizontal projection, the second end of the exhaust pipe at least covers the end of the air inlet close to the second air outlet, and the end of the intercepting baffle close to the air inlet is located between the second air outlet and the air inlet.

2. The oil-gas separation assembly according to claim 1, characterized in that: The interior of the exhaust pipe is hollow, and the second end of the exhaust pipe is arranged between the air inlet and the oil outlet; The outer side wall of the exhaust pipe is formed into an arc surface.

3. The oil-gas separation assembly according to claim 2, characterized in that: The inner diameter of the exhaust pipe gradually decreases along the first direction.

4. The oil-gas separation assembly according to claim 2, characterized in that: A trapezoidal passing portion is disposed inside the second end of the exhaust pipe, and an inner diameter of the trapezoidal passing portion gradually decreases along a first direction.

5. The oil-gas separation assembly according to claim 1, characterized in that: The oil-gas separation component further includes an oil drain pipe, a first end of which is connected to the oil drain port, and a second end of which is disposed in the oil pool of the scroll compressor.

6. The oil-gas separation assembly according to claim 1, characterized in that: The angle between the center line of the air inlet and the center line of the first air outlet is 10 degrees to 50 degrees.

7. The oil-gas separation assembly according to claim 1, characterized in that: The oil drain port is disposed at an end portion of the separation housing in the second direction, and the oil drain port and the second air outlet are sequentially disposed along the second direction.

8. The oil-gas separation assembly according to claim 1, characterized in that: The intercepting baffle is obliquely sleeved on the exhaust pipe, and the center line of the intercepting baffle is parallel to the center line of the air inlet.

9. The oil-gas separation assembly according to claim 1, characterized in that: The scroll compressor also includes a stator and a compressor housing. The oil-gas separation assembly and the stator are both arranged inside the compressor housing. The first air outlet is arranged in the middle of the stator. The oil-gas separation assembly is detachably arranged on the stator.

10. A scroll compressor, characterized in that: The scroll compressor comprises the oil-gas separation assembly according to any one of claims 1 to 9.

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