Oil retaining structure and compressor

Abstract

The utility model relates to the technical field of compressors, and discloses an oil baffle structure and a compressor, the oil baffle structure comprises an oil baffle plate, the oil baffle plate is provided with a first through hole and a second through hole, the first through hole is used for limiting installation of the oil baffle plate, and the second through hole is used for upward circulation of gas. The oil baffle plate is provided with a first surface and a second surface which are arranged back to back, the first surface is provided with a shielding part, the shielding part surrounds the edge of the second through hole and is used for laterally discharging the gas, and the second surface is provided with a plurality of oil baffle pieces for oil-gas separation; the utility model has the technical effects that the cost is low, the popularization is easy, and the noise reduction function can be realized while the oil circulation rate of the compressor is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and particularly relates to an oil retaining structure and a compressor. Background Art

[0002] During the operation of the compressor, the oil circulation rate is a key indicator, which directly affects the energy efficiency and operating stability of the compressor. An excessively high oil circulation rate will not only increase the energy consumption of the compressor, but may also lead to lubricating oil contamination and wear of compressor components.

[0003] Although there are some methods on the market to reduce the oil circulation rate of compressors, such as optimizing the lubricating oil system and improving the oil-gas separator, these methods often have problems such as high cost and complex implementation, and are difficult to promote widely.

[0004] In addition, the compressor will generate a lot of noise during operation, which will not only have an adverse impact on the working environment of the operator, but may also cause interference to the surrounding residents and ecological environment.

[0005] Traditional noise control methods mainly include installing silencers and using sound insulation materials. Although these methods can reduce noise to a certain extent, it is often difficult to take into account the control of oil circulation rate at the same time, and the noise reduction effect is limited. Utility Model Content

[0006] In order to solve the deficiencies of the prior art, the utility model provides an oil baffle structure and a compressor, which are low-cost, easy to promote, and can effectively reduce the oil circulation rate of the compressor while also achieving the purpose of noise reduction.

[0007] The technical objectives to be achieved by this utility model are achieved through the following technical solutions:

[0008] The utility model provides an oil baffle structure, comprising an oil baffle plate, wherein a first through hole and a second through hole are formed on the oil baffle plate, wherein the first through hole is used for limiting the installation of the oil baffle plate, and the second through hole is used for upward flow of gas;

[0009] The oil baffle plate has a first surface and a second surface arranged opposite to each other. A shielding portion is provided on the first surface, and the shielding portion is arranged around the edge of the second through hole for allowing the gas to be discharged laterally. A plurality of oil baffle plates for oil and gas separation are provided on the second surface.

[0010] In some implementations, the plurality of oil baffles are evenly or unevenly distributed on the second surface, and the distribution positions of the plurality of oil baffles can be adjusted according to actual operational requirements to achieve the purpose of oil and gas separation.

[0011] In some implementations, a first enclosure is enclosed at the edge of the oil baffle, and the cross-sectional area of the first enclosure gradually increases along the second surface toward the first surface, forming a slope structure, which can facilitate the adhesion and falling of oil mist.

[0012] In some implementations, a second enclosure is provided on the second surface, and the second enclosure is enclosed at the edge of the first through hole. The second enclosure is provided to block the refrigerant and oil mist to prevent them from being directly discharged through the first through hole.

[0013] In some implementations, a third through hole is provided on the oil baffle plate, and the third through hole is used for positioning and connecting the oil baffle plate, thereby ensuring the positioning stability and connection stability of the oil baffle plate, thereby ensuring the use stability of the oil baffle structure.

[0014] In some implementations, a sealing cover is provided on the second surface, and a plurality of the oil deflector covers are provided in the sealing cover;

[0015] The sealing cover is provided with a fourth through hole for upward flow of the gas and a fifth through hole for backflow of oil droplets on a side away from the second surface. The provision of the sealing cover can achieve a better effect of reducing noise.

[0016] In some implementations, the fourth through hole and the second through hole are staggered, and the staggered arrangement enables the refrigerant discharged from the upper silencer to pass through the oil baffle to separate oil and gas before being discharged through the second through hole.

[0017] In some implementations, a gap is provided between the end of the oil baffle away from the second surface and the sealing cover to ensure sufficient circulation of the refrigerant inside the sealing cover, that is, to ensure the oil-gas separation effect of the oil baffle.

[0018] The present application also provides a compressor, comprising a compression pump, an upper support, an upper muffler cover, a crankshaft, and the oil retaining structure described in any one of the above items;

[0019] The upper support includes a base plate and a shaft sleeve extending upward from the middle portion of the base plate, wherein the shaft sleeve passes through the upper muffler cover and the first through hole of the oil baffle in sequence;

[0020] The crankshaft passes through the compression pump and the shaft sleeve in sequence.

[0021] In some implementations, the upper muffler cover is provided with a sixth through hole for the gas to flow upward;

[0022] The fourth through hole is opposite to the sixth through hole, ensuring that the refrigerant discharged through the upper silencer cover directly enters the interior of the sealing cover through the fourth through hole, and the oil baffle plays an oil and gas separation role.

[0023] In summary, the present invention has at least the following advantages:

[0024] The utility model provides an oil baffle structure, which is installed above the upper silencer cover in the compressor, so that the refrigerant discharged from the upper silencer cover is directly sprayed onto the oil baffle plate, and a plurality of oil baffle plates for oil and gas separation arranged on the second surface of the oil baffle plate are used to allow the oil mist entrained in the refrigerant to converge and fall back into the oil pool, thereby reducing the oil circulation rate. Compared with methods such as optimizing the lubrication system and improving the oil-gas separator, the utility model has the advantages of low cost and easy promotion. At the same time, since the oil baffle plate is arranged above the silencer cover, it can buffer the refrigerant discharged from the upper silencer cover, reduce the transmission path and reflection of the noise, and thus achieve the noise reduction effect.

[0025] The utility model provides a compressor which, after applying the above-mentioned oil retaining structure, has the advantages of reducing the oil circulation rate of the compressor, improving the performance of high-speed working conditions, increasing pump reliability, ensuring lubrication, reducing noise and optimizing hearing feeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 and Figure 2 Schematic diagram of the oil retaining structure provided in Example 1 of the present utility model;

[0027] Figure 3 and Figure 4 A schematic diagram of the oil retaining structure provided in Example 2 of the present utility model;

[0028] Figure 5 A cross-sectional view of the oil retaining structure provided in Example 2 of the present utility model;

[0029] Figure 6 A schematic structural diagram of a compressor provided in Example 3 of the present utility model;

[0030] Figure 7 A schematic structural diagram of the upper support provided in Example 3 of the present utility model;

[0031] Figure 8 A schematic structural diagram of an upper muffler cover provided in Example 3 of the present utility model;

[0032] 100, oil baffle; 110, first through hole; 120, second through hole; 130, shielding portion; 140, oil baffle; 150, first enclosure; 160, second enclosure; 170, third through hole;

[0033] 200, sealing cover; 210, fourth through hole; 220, fifth through hole;

[0034] 300, compression pump;

[0035] 400, upper support; 410, base plate; 420, shaft sleeve;

[0036] 500, upper muffler cover; 510, sixth through hole;

[0037] 600. Crankshaft. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1:

[0041] See Figure 1 and Figure 2 An oil baffle structure includes an oil baffle plate 100, which is provided with a first through hole 110 and a second through hole 120. The first through hole 110 is used for limiting the installation of the oil baffle plate 100, and the second through hole 120 is used for upward flow of gas.

[0042] The oil baffle 100 is installed above the upper silencer cover in the compressor. The shape of the oil baffle 100 is designed in combination with the internal structure of a traditional compressor. The oil baffle 100 is in the shape of a circular oil baffle 100 to provide better fixing and balancing effects.

[0043] The first through hole 110 is located in the middle of the oil baffle 100. It is a circular through hole, and its axis coincides with the rotation axis of the oil baffle 100. The first through hole 110 plays a role in the central limiting installation of the oil baffle 100. The second through hole 120 is used for the upward flow of gas. The second through holes 120 are distributed in the area between the inner edge and the outer edge of the oil baffle 100. The number of the second through holes 120 can be two or three, and there is no specific restriction here. In terms of shape, the second through hole 120 can be a circular through hole or a semicircular through hole, etc.

[0044] The oil baffle 100 has a first surface and a second surface arranged in opposite directions. A shielding portion 130 is provided on the first surface. The shielding portion 130 is arranged around the edge of the second through hole 120 for discharging gas laterally. A plurality of oil baffles 140 for oil and gas separation are provided on the second surface.

[0045] It can be seen that the oil baffle 100 is located above the upper silencer cover. Combined with the usage requirements, it can be seen that the first surface is the upper surface of the oil baffle 100, and the second surface is the lower surface of the oil baffle 100. A shielding portion 130 is provided on the first surface to change the discharge path of the refrigerant. For example, the second through hole 120 is a semicircular hole, including an arcuate side and a straight side connected to each other. The shielding portion 130 is curved and arranged along the arcuate side, which is equivalent to forming a convex structure above the second through hole 120, and a lateral opening is jointly constructed between the shielding portion 130 and the straight side of the second through hole 120 for lateral discharge of gas. For example, the lateral opening is oriented between the inner edge and the outer edge of the oil baffle 100, that is, it is not directly facing the inner edge or the outer edge of the oil baffle 100.

[0046] The second surface is the lower surface of the muffler cover facing upward on the oil baffle plate 100. A plurality of oil baffles 140 for oil and gas separation are provided on the second surface, which can separate the oil and gas of the refrigerant discharged from the upper muffler cover.

[0047] In terms of position distribution, the multiple oil baffles 140 can be evenly or unevenly distributed on the second surface, that is, in this example, there is no restriction on the specific distribution positions of the multiple oil baffles 140. The distribution positions and quantities of the multiple oil baffles 140 can be adjusted according to actual operational requirements to achieve the purpose of oil and gas separation.

[0048] For example, multiple oil baffles 140 are evenly distributed along the circumferential direction, or multiple oil baffles 140 are staggered along the circumferential direction. As for the specific shape of the oil baffle 140, an arc-shaped oil baffle 140 or a flat oil baffle 140 can be adopted. The shape can be adjusted according to actual needs, and no specific restrictions are made here.

[0049] During specific use, the oil baffle 100 is set above the upper silencer cover in the compressor, and the refrigerant discharged from the upper silencer cover is directly sprayed onto the second surface of the oil baffle 100, so that the oil mist entrained in the refrigerant will adhere to multiple oil baffles 140, and the refrigerant gas will continue to be discharged through the second through hole 120. After the oil mist attached to the oil baffle 140 gathers into oil droplets, it will fall back into the oil pool due to its own gravity, thereby reducing the oil circulation rate.

[0050] In some embodiments, a first enclosure 150 is enclosed at the edge of the oil baffle 100, and the cross-sectional area of the first enclosure 150 gradually increases from the second surface toward the first surface, forming a slope structure, which can facilitate the adhesion and falling of oil mist.

[0051] As is known, the oil baffle 100 is a circular oil baffle 100, and the first enclosure 150 is enclosed at the edge of the oil baffle 100. Here, the first enclosure 150 is equivalent to a circular ring shape, having an inner edge and an outer edge. Since the cross-sectional area of the first enclosure 150 gradually increases from the second surface toward the first surface, that is, the height of the outer edge of the first enclosure 150 is higher than the height of the inner edge of the first enclosure 150, the inclined structure design provides a larger attachment area for the oil mist, and also facilitates the oil mist to fall back on the first surface of the oil baffle 100 with the help of the inclined structure, thereby avoiding excessive entry into the air-conditioning system.

[0052] In some embodiments, a second enclosure 160 is provided on the second surface. The second enclosure 160 is enclosed at the edge of the first through hole 110 . The second enclosure 160 is provided to block the refrigerant and oil mist to prevent them from being directly discharged through the first through hole 110 .

[0053] It is known that the first through hole 110 is used for the limiting installation of the oil baffle 100. In order to prevent the refrigerant from carrying part of the oil mist through the gap between the first through hole 110 and the connected components, a second enclosure 160 is set at the edge of the first through hole 110, so that the refrigerant can only pass from the outside of the second enclosure 160, that is, through the area of multiple oil baffles 140.

[0054] In some embodiments, a third through hole 170 is opened on the oil baffle plate 100, and the third through hole 170 is used for positioning and connecting the oil baffle plate 100, ensuring the positioning stability and connection stability of the oil baffle plate 100, thereby ensuring the use stability of the oil baffle structure.

[0055] Here, bolts or other connecting parts can be used to pass through the third through holes 170 to lock the oil baffle 100 on the connected components. The number of third through holes 170 can be four, and the four third through holes 170 are evenly spaced on the oil baffle 100, which plays a balanced connection role for the oil baffle 100.

[0056] An oil baffle structure provided in this embodiment is installed above the upper silencer cover in the compressor, so that the refrigerant discharged from the upper silencer cover is directly sprayed onto the oil baffle plate 100. A plurality of oil baffle plates 140 for oil-gas separation are arranged on the second surface of the oil baffle plate 100, so that the oil mist entrained in the refrigerant can be gathered and fall back into the oil pool, thereby reducing the oil circulation rate. Compared with methods such as optimizing the lubrication system and improving the oil-gas separator, it has the advantages of low cost and easy promotion. At the same time, since the oil baffle plate 100 is arranged above the silencer cover, it can buffer the refrigerant discharged from the silencer cover, reduce the transmission path and reflection of the noise, and thus achieve a noise reduction effect.

[0057] Example 2:

[0058] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the oil retaining structure of the utility model. Figure 3-Figure 5 .

[0059] In this embodiment, a sealing cover 200 is provided on the second surface, and a plurality of oil baffles 140 are covered in the sealing cover 200; a fourth through hole 210 for upward flow of gas and a fifth through hole 220 for oil droplet backflow are provided on the side of the sealing cover 200 away from the second surface. The provision of the sealing cover 200 can achieve a better effect of reducing noise.

[0060] For example, the sealing cover 200 includes a sealing bottom surface and a side enclosure, the side enclosure is enclosed at the edge of the sealing bottom surface, and the sealing cover 200 forms a cavity structure with an opening, and the end of the side enclosure away from the sealing bottom surface is connected to the second surface, so that a closed cavity is formed between the sealing cover 200 and the second surface, and a plurality of oil baffles 140 are located in the closed cavity, and the closed cavity is in a non-sealed state. Specifically, a fourth through hole 210 and a fifth through hole 220 are provided on the side of the sealing cover 200 away from the second surface, that is, the fourth through hole 210 and the fifth through hole 220 are provided on the sealing bottom surface of the sealing cover 200.

[0061] When in use, the oil baffle plate 100 is set above the upper silencer cover in the compressor. The refrigerant discharged from the upper silencer cover enters the closed cavity formed between the sealing cover 200 and the second surface through the fourth through hole 210. After the oil and gas are separated by multiple oil baffles 140, the refrigerant gas continues to be discharged through the second through hole 120. The oil mist attached to the oil baffle 140 is gathered into oil droplets and, under the action of its own gravity, falls back into the oil pool through the fifth through hole 220, thereby reducing the oil circulation rate.

[0062] Here, in this embodiment, the specific shapes, distribution positions and numbers of the fourth through holes 210 and the fifth through holes 220 are not limited and can be adjusted accordingly according to actual needs.

[0063] In some embodiments, the fourth through hole 210 and the second through hole 120 are staggered, and the staggered arrangement enables the refrigerant discharged from the upper silencer to pass through the oil baffle 140 for oil and gas separation before being discharged through the second through hole 120 .

[0064] As is known, the fourth through hole 210 is used for the refrigerant discharged from the upper silencer to enter the interior of the sealing cover 200 from the fourth through hole 210, so that the refrigerant passes through multiple oil baffles 140 for oil and gas separation, and the second through hole 120 is used for the discharge of the refrigerant after oil and gas separation. Therefore, the fourth through hole 210 and the second through hole 120 are staggered. This can avoid the refrigerant that enters the interior of the sealing cover 200 through the fourth through hole 210 from being directly discharged from the second through hole 120, ensuring a better oil and gas separation effect, thereby achieving the purpose of reducing the oil circulation rate.

[0065] Furthermore, a gap is provided between the end of the oil baffle 140 away from the second surface and the sealing cover 200 , thereby ensuring sufficient circulation of the refrigerant inside the sealing cover 200 , that is, ensuring the oil-gas separation effect of the oil baffle 140 .

[0066] Example 3:

[0067] Based on the above embodiment 2, the present invention also provides a compressor, see Figure 6-Figure 8 .

[0068] See also Figure 6 and Figure 7 A compressor includes a compression pump 300, an upper support 400, an upper silencer cover 500, a crankshaft 600 and the oil retaining structure in Example 2.

[0069] The upper support 400 includes a base plate 410 and a sleeve 420 extending upward from the middle of the base plate 410. The sleeve 420 passes through the upper silencer 500 and the first through hole 110 of the oil baffle 100 in sequence. That is, the oil baffle 100 is limitedly installed by the sleeve 420 of the upper support 400, and the oil baffle 100 is located above the upper silencer 500. The crankshaft 600 passes through the compression pump 300 and the sleeve 420 in sequence.

[0070] Here, the oil baffle 100 is installed in a limited position through the upper support 400 and is located above the upper silencer 500. Compared with the traditional method of setting the oil baffle 100 at the upper end of the rotor to block oil, this embodiment can effectively reduce the oil circulation rate of the compressor while also achieving a noise reduction function.

[0071] See also Figure 8 Furthermore, a sixth through hole 510 for upward gas circulation is provided on the upper silencer cover 500; the fourth through hole 210 is opposite to the sixth through hole 510, ensuring that the refrigerant discharged through the upper silencer cover 500 directly enters the interior of the sealing cover 200 through the fourth through hole 210, and the oil baffle 140 plays the role of oil and gas separation.

[0072] The utility model provides a compressor which, after applying the above-mentioned oil retaining structure, has the advantages of reducing the oil circulation rate of the compressor, improving the performance of high-speed working conditions, increasing pump reliability, ensuring lubrication, reducing noise and optimizing hearing feeling.

[0073] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0074] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

Claims

1. An oil retaining structure, characterized in that: The oil baffle plate (100) is provided with a first through hole (110) and a second through hole (120), wherein the first through hole (110) is used for position-limiting installation of the oil baffle plate (100), and the second through hole (120) is used for upward flow of gas. The oil baffle plate (100) has a first surface and a second surface arranged in opposite directions. A shielding portion (130) is provided on the first surface. The shielding portion (130) is arranged around the edge of the second through hole (120) and is used to discharge the gas laterally. A plurality of oil baffle plates (140) for oil and gas separation are provided on the second surface.

2. The oil retaining structure according to claim 1, characterized in that: The plurality of oil baffles (140) are evenly or unevenly distributed on the second surface.

3. The oil retaining structure according to claim 1, characterized in that: A first enclosure plate (150) is enclosed at the edge of the oil baffle plate (100), and the cross-sectional area of the first enclosure plate (150) gradually increases in a direction from the second surface toward the first surface.

4. The oil retaining structure according to claim 1, characterized in that: A second enclosing plate (160) is provided on the second surface, and the second enclosing plate (160) is enclosed at the edge of the first through hole (110).

5. The oil retaining structure according to claim 1, characterized in that: A third through hole (170) is provided on the oil baffle plate (100), and the third through hole (170) is used for positioning and connecting the oil baffle plate (100).

6. The oil retaining structure according to any one of claims 1 to 5, characterized in that: A sealing cover (200) is provided on the second surface, and a plurality of oil baffles (140) are covered in the sealing cover (200); A fourth through hole (210) for upward flow of the gas and a fifth through hole (220) for oil droplet backflow are provided on a side of the sealing cover (200) away from the second surface.

7. The oil retaining structure according to claim 6, characterized in that: The fourth through hole (210) and the second through hole (120) are staggered.

8. The oil retaining structure according to claim 6, characterized in that: A gap is formed between the end of the oil baffle (140) away from the second surface and the sealing cover (200).

9. A compressor, characterized in that: It comprises a compression pump (300), an upper support (400), an upper silencer cover (500), a crankshaft (600) and an oil retaining structure according to any one of claims 6 to 8; The upper support (400) comprises a base plate (410) and a shaft sleeve (420) extending upward from the middle of the base plate (410), wherein the shaft sleeve (420) passes through the upper muffler cover (500) and the first through hole (110) of the oil baffle (100) in sequence; The crankshaft (600) passes through the compression pump (300) and the shaft sleeve (420) in sequence.

10. The compressor according to claim 9, characterized in that The upper muffler cover (500) is provided with a sixth through hole (510) for the gas to flow upward; The fourth through hole (210) is opposite to the sixth through hole (510).

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