Oil-gas cavity housing of scroll compressor

Abstract

The application provides an oil-gas cavity shell of a scroll compressor, which is provided with a movable scroll mounting portion, an oil-gas separation cavity, an oil-gas separation core mounting hole, an oil return inlet, an oil return outlet and an exhaust port. The movable scroll mounting portion is used for mounting a movable scroll. The oil-gas separation core mounting hole is used for mounting an oil-gas separation core and is communicated with the oil-gas separation cavity. The oil return outlet and the exhaust port are both communicated with the oil-gas separation core mounting hole. The oil return outlet is used for leading out the oil separated by the oil-gas separation core. The exhaust port is used for discharging the gas separated by the oil-gas separation core. The oil return inlet is communicated with the movable scroll mounting portion. Since the movable scroll mounting portion, the oil-gas separation cavity, the oil-gas separation core mounting hole, the oil return inlet and the oil return outlet are all arranged on the oil-gas cavity shell, other components such as an external oil-gas tank, a combination valve and an oil guide pipe are avoided, the static scroll shell structure of the scroll compressor is small and simple, and the assembly components and the connecting pipelines of the compression complete machine are greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of scroll compressors, and more specifically to an oil-gas cavity housing of a scroll compressor. Background Art

[0002] In the compressor market, scroll compressors are gradually replacing traditional piston and rotary vane compressors. They are characterized by smooth operation, high volumetric efficiency, high mechanical efficiency, long life, and low failure rate, and are widely used in homes, offices, vehicles, and other environments. The core component of a scroll compressor is a pair of intermeshing scrolls, one of which is a moving scroll and the other is a stationary scroll. The stationary scroll, as a fixed part, remains stationary during the operation of the compressor, while the moving scroll rotates very precisely relative to the stationary scroll to achieve gas compression. Currently, the main units of oil-injected scroll compressors on the market are all independently designed. To assemble a complete compressor, it is necessary to assemble multiple other components such as oil and gas tanks, combination valves, and oil guide pipes. There are many pipelines, a complex structure, a large space occupation, and high production costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an oil-gas chamber housing of a scroll compressor, which has a compact and simple structure and can greatly reduce the assembly parts and connecting pipelines of the entire compressor.

[0004] The technical solution of the present invention is to provide an oil-gas chamber housing of a scroll compressor, on which a movable scroll mounting portion, an oil-gas separation chamber, an oil-gas separation core mounting hole, an oil return inlet, an oil return outlet and an exhaust port are provided. The movable scroll mounting portion is used to install the movable scroll, the oil-gas separation core mounting hole is used to install the oil-gas separation core and is connected with the oil-gas separation chamber, the oil return outlet and the exhaust port are both connected with the oil-gas separation core mounting hole, the oil return outlet is used to guide out the oil separated by the oil-gas separation core, the exhaust port is used to discharge the gas separated by the oil-gas separation core, and the oil return inlet is connected with the movable scroll mounting portion.

[0005] Compared with the prior art, the oil-gas chamber shell of the scroll compressor of the present invention has the following advantages: when the scroll compressor is working, the oil-gas mixture enters the oil-gas separation chamber for preliminary oil-gas separation. After the preliminary separation, a large number of oil droplets condense into oil liquid and remain in the oil-gas separation chamber, and the gas is discharged from the oil-gas separation chamber through the oil-gas separation core mounting hole. At this time, the gas still contains some oil droplets and is further separated from the oil-gas by the oil-gas separation core. The separated oil liquid is discharged through the oil return outlet, and the gas is discharged through the exhaust port; the oil return outlet can be connected to the oil return inlet, and the oil discharged from the oil return outlet can be directly introduced into the engine In the scroll mounting part, the movable scroll and its bearings are lubricated and cooled. The oil discharged from the return oil outlet can also be connected to an external cooler for cooling, and the cooled oil is then introduced into the movable scroll mounting part through the return oil inlet to lubricate and cool the movable scroll and its bearings. Since the movable scroll mounting part, the oil-gas separation chamber, the oil-gas separation core mounting hole, the return oil inlet, the return oil outlet and the exhaust port are all arranged on the oil-gas chamber housing, the external oil and gas tank, combination valve, oil guide pipe and other multiple components are avoided, so that the static disk casing structure of the scroll compressor is small and simple, which greatly reduces the assembly parts and connecting pipelines of the entire compressor.

[0006] Preferably, the oil-gas separation core mounting hole includes an inner hole and an oil-gas through hole. The oil-gas through hole connects the oil-gas separation chamber with the inner hole, and the inner hole connects to both the oil return outlet and the exhaust port. This structure prevents the oil return outlet and the exhaust port from directly connecting to the oil-gas separation chamber, thereby improving the oil-gas separation performance of the oil-gas separation core.

[0007] Preferably, the exhaust port is communicated with the bottom of the inner hole, and the oil return outlet is communicated with the side of the inner hole. This structure is adapted to the structure of the oil-gas separation core to separate the oil and gas.

[0008] Preferably, the oil and gas through-holes surround the outer side of the inner hole. With this structure, oil and gas flow from the outer periphery of the inner hole to the center, improving the efficiency of oil and gas passage, while preventing oil and gas from concentrating on one side of the oil and gas separation core, so that the oil and gas separation core can be evenly utilized.

[0009] Preferably, at least one oil-gas separation baffle is provided within the oil-gas separation chamber. The oil-gas separation baffle divides the oil-gas separation chamber into several smaller chambers, with adjacent smaller chambers interconnected. This structure allows oil and gas to be separated multiple times within the smaller chambers, and allows oil droplets to fully condense on the oil-gas separation baffle, thereby improving the degree of oil-gas separation.

[0010] Preferably, the oil-gas separation core mounting hole is located at the top of the small oil-gas separation chamber, where the oil and gas finally enter. This structure allows the oil and gas to be fully separated in the oil-gas separation chamber before entering the oil-gas separation core mounting hole for further separation by the oil-gas separation core, reducing the workload of the oil-gas separation core.

[0011] Preferably, an anti-rotation component mounting portion is provided in the movable scroll mounting portion, and the anti-rotation component mounting portion is used to mount a component that prevents the movable scroll from rotating. This structure facilitates the installation of the movable scroll and the component that prevents the movable scroll from rotating.

[0012] Preferably, the anti-rotation member mounting portion is a cross ring mounting portion, and the cross ring mounting portion is used to mount a cross ring that prevents the movable scroll from rotating.

[0013] Preferably, an oil sight port is provided on the side wall of the oil-gas separation chamber, and the oil sight port is used to observe the oil level in the oil-gas separation chamber. With this structure, it is convenient to observe the oil level in the oil-gas separation chamber.

[0014] Preferably, an oil discharge pipe is provided at the bottom of the oil-gas separation chamber, and the oil discharge pipe is used to discharge the oil in the oil-gas separation chamber. With this structure, it is convenient to discharge or replace the oil in the oil-gas separation chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the oil-gas chamber shell of the scroll compressor of the present invention.

[0016] Figure 2 for Figure 1 Front view of .

[0017] Figure 3 for Figure 1 rear view.

[0018] Figure 4 for Figure 3 Top view of .

[0019] Figure 5 for Figure 3 Left view of .

[0020] Figure 6 for Figure 5 AA direction cross-sectional view.

[0021] As shown in the figure: 1. Oil-gas chamber housing, 2. Orbital scroll mounting part, 2-1. Cross ring mounting part, 3. Oil-gas separation chamber, 4. Return oil inlet, 5. Exhaust port, 6. Oil unloading pipe, 7. Oil sight port, 8. Oil-gas separation core mounting hole, 8-1. Oil-gas through hole, 9. Third oil-gas separation baffle, 10. Second oil-gas separation baffle, 11. First oil-gas separation baffle, 12. Return oil outlet. DETAILED DESCRIPTION

[0022] In order to better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0023] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0024] It should also be understood that the terms "comprising," "having," "including," and "containing," when used in this specification, indicate the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof. Furthermore, expressions such as "...at least one of" when following a list of listed features modify the entire list, rather than modifying the individual elements in the list.

[0025] like Figure 1 and Figure 2 As shown in the figure, the oil-gas chamber housing of the scroll compressor of the present invention is provided with a movable scroll mounting portion 2, which is a mounting hole for mounting the movable scroll, and a cross ring mounting portion 2-1 is provided at a position corresponding to the inner side of the oil-gas chamber housing of the movable scroll mounting portion 2, and the cross ring mounting portion 2-1 is used to install a cross ring for preventing the movable scroll from rotating; an oil-gas separation chamber 3 is provided on the outer side of the movable scroll mounting portion 2, and the oil-gas separation chamber 3 is located on the inner side of the oil-gas chamber housing, and a first oil-gas separation chamber is also provided in the oil-gas separation chamber 3. Oil droplets will fully condense on the baffle 11, the second oil-gas separation baffle 10, and the third oil-gas separation baffle 9. These baffles also divide the oil-gas separation chamber 3 into four smaller chambers. Adjacent smaller chambers are interconnected, allowing oil and gas to undergo four separations within these chambers, improving the degree of oil-gas separation. A stator housing mounting portion is provided on the outer end surface of the oil-gas separation chamber 3 for mounting the stator housing. Typically, the oil-gas chamber housing and the stator housing face each other and are bolted together.

[0026] like Figure 1 and Figure 5 As shown in the figure, an oil viewing port 7 is provided on the side wall of the oil-gas separation chamber 3 for observing the oil level in the oil-gas separation chamber 3; an oil unloading pipe 6 is provided at the bottom of the oil-gas separation chamber 3 for leading the oil in the oil-gas separation chamber 3.

[0027] like Figure 3 、 Figure 4 and Figure 6As shown in the figure, an oil-gas separation core mounting hole 8 is provided on the top of the small oil-gas separation chamber where the third oil-gas separation baffle 9 is located. The oil-gas separation core mounting hole 8 includes an inner hole and an oil-gas through hole 8-1. The oil-gas through hole 8-1 surrounds the outer side of the inner hole and connects the oil-gas separation chamber 3 with the inner hole. An oil return outlet 12 and an exhaust port 5 are also provided on the hole wall of the oil-gas separation core mounting hole 8. The exhaust port 5 is connected to the bottom of the inner hole, and the oil return outlet 12 is connected to the side of the inner hole. The oil-gas separation core mounting hole 8 is used to install the oil-gas separation core. The oil and gas are discharged from the oil-gas separation chamber through the oil-gas through hole 8-1, and are separated by the oil-gas separation core. Finally, the separated oil is discharged from the oil return outlet 12, and the separated gas is discharged from the exhaust port 5.

[0028] like Figure 1 、 Figure 3 and Figure 4 As shown in , an oil return inlet 4 is provided on the top of the oil-gas chamber housing, and the oil return inlet 4 connects the movable scroll mounting part 2 with the outside world. The return oil outlet 12 can be connected to the oil return inlet 4, and the oil derived from the return oil outlet 12 can be directly introduced into the movable scroll mounting part to lubricate and cool the movable scroll and its bearings. The oil derived from the return oil outlet can also be connected to an external cooler for cooling, and the cooled oil can be then introduced into the movable scroll mounting part through the return oil inlet to lubricate and cool the movable scroll and its bearings.

[0029] Before the scroll compressor assembled by the oil-gas chamber shell of the scroll compressor of the present invention works, the return oil outlet 12 is connected to the return oil inlet 4, and the oil level in the oil-gas separation chamber 3 is observed through the oil sight port 7 to ensure that the oil inside the scroll compressor is within a normal range; after starting the scroll compressor, the oil-gas mixture enters the oil-gas separation chamber 3 for preliminary oil-gas separation. After the preliminary separation, a large number of oil droplets condense into oil liquid and remain in the oil-gas separation chamber 3, and the gas is discharged from the oil-gas separation chamber 3 through the oil-gas through hole 8-1. At this time, the gas still contains some oil droplets and is further separated by the oil-gas separation core. The oil separated by the oil-gas separation core is discharged through the return oil outlet 12 and introduced into the movable scroll mounting part through the return oil inlet 4 to lubricate and cool the movable scroll and its bearings. The gas separated by the oil-gas separation core is discharged through the exhaust port.

[0030] The above are only specific embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced with equivalents without departing from the spirit and scope of the present invention, they should be included in the scope of protection of the claims of the present invention.

Claims

1. An oil and gas chamber housing of a scroll compressor, characterized in that: The oil-gas chamber housing is provided with a movable scroll mounting portion (2), an oil-gas separation chamber (3), an oil-gas separation core mounting hole (8), an oil return inlet (4), an oil return outlet (12) and an exhaust port (5); the movable scroll mounting portion (2) is used to mount the movable scroll; an oil-gas separation chamber (3) is provided on the outer side of the movable scroll mounting portion (2), the oil-gas separation chamber (3) is located on the inner side of the oil-gas chamber housing, and at least one oil-gas separation baffle is provided in the oil-gas separation chamber (3), and the oil-gas separation baffle divides the oil-gas separation chamber (3) into a plurality of small oil-gas separation chambers, and the adjacent small oil-gas separation chambers are connected to each other; the oil-gas separation core mounting portion (8) is provided with a plurality of oil-gas separation baffles, and the oil-gas separation baffles divide the oil-gas separation chamber (3) into a plurality of small oil-gas separation chambers, and the adjacent small oil-gas separation chambers are connected to each other; the oil-gas separation core mounting portion (8) is provided with an oil-gas separation baffle. The mounting hole (8) is used to mount the oil-gas separation core and is in communication with the oil-gas separation chamber (3); the oil return outlet (12) and the exhaust port (5) are both in communication with the oil-gas separation core mounting hole (8); the oil return outlet (12) is used to guide the oil separated by the oil-gas separation core, and the exhaust port (5) is used to discharge the gas separated by the oil-gas separation core; the oil return inlet (4) is in communication with the movable scroll mounting portion (2); the oil-gas separation core mounting hole (8) includes an inner hole and an oil-gas through hole (8-1); the oil-gas through hole (8-1) enables the oil-gas separation chamber (3) to be in communication with the inner hole; and the inner hole is in communication with both the oil return outlet (12) and the exhaust port (5).

2. The oil-gas chamber housing of a scroll compressor according to claim 1, characterized in that: The exhaust port (5) is communicated with the bottom of the inner hole, and the oil return outlet (12) is communicated with the side of the inner hole.

3. The oil-gas chamber housing of a scroll compressor according to claim 1, characterized in that: The oil and gas through hole (8-1) surrounds the outer side of the inner hole.

4. The oil-gas chamber housing of a scroll compressor according to claim 1, characterized in that: The oil-gas separation core mounting hole (8) is arranged on the top of the small oil-gas separation chamber into which the oil and gas enter last.

5. The oil-gas chamber housing of a scroll compressor according to claim 1, characterized in that: An anti-rotation component mounting portion is provided in the movable scroll mounting portion (2), and the anti-rotation component mounting portion is used for mounting a component that prevents the movable scroll from rotating.

6. The oil-gas chamber housing of a scroll compressor according to claim 5, characterized in that: The anti-rotation component mounting portion is a cross ring mounting portion (2-1), and the cross ring mounting portion (2-1) is used to mount a cross ring that prevents the movable scroll from rotating.

7. The oil-gas chamber housing of a scroll compressor according to claim 1, characterized in that: An oil viewing port (7) is provided on the side wall of the oil-gas separation chamber (3), and the oil viewing port (7) is used to observe the oil level in the oil-gas separation chamber (3).

8. The oil-gas chamber housing of a scroll compressor according to claim 1, characterized in that: An oil unloading pipe (6) is provided at the bottom of the oil-gas separation chamber (3), and the oil unloading pipe (6) is used to discharge the oil in the oil-gas separation chamber (3).

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