An end cap assembly and compressor having the same

Abstract

The utility model relates to a kind of end cover assembly and the compressor with it, end cover assembly includes end cover main body, exhaust pipe, oil baffle piece;The end cover main body is the cover body structure of one end open, one end of the exhaust pipe is penetrated along axial direction the end cover main body and is inserted into the inside of the end cover main body, and the exhaust pipe inserted into the one end of the end cover main body is equipped with exhaust port;The oil baffle piece includes integrally-formed connecting portion and oil baffle portion, the connecting portion is fixed in the inside of the end cover main body, the oil baffle portion is spaced apart from the exhaust port, and the projection of the oil baffle portion in axial direction completely covers the exhaust port.The end cover assembly of the utility model, through the ingenious setting between oil baffle piece and end cover main body, exhaust port, avoid refrigerant gas directly from exhaust port discharge, and can improve the effect of oil-gas separation, so that the refrigeration oil content in the gas from exhaust port drops.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to an end cap assembly and a compressor having the same. Background Technology

[0002] A rotary compressor mainly consists of a compressor housing, end cover assembly, motor, and pump body structure. The end cover assembly is sealed at one end of the compressor housing opening. The motor and pump body structure are respectively built into the compressor housing, and the motor drives the pump body structure to compress the refrigerant. During compressor operation, some of the refrigerant oil is easily carried by the refrigerant gas into the air conditioning system. This is especially true for high-displacement, high-frequency models, where the refrigerant oil is more likely to be discharged from the exhaust port of the end cover assembly, leading to a decrease in the compressor's cooling capacity and energy efficiency. Utility Model Content

[0003] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide an end cap assembly and a compressor having the same. Through the ingenious arrangement between the oil baffle, the end cap body, and the exhaust port, the refrigerant gas is prevented from being directly discharged from the exhaust port, and the oil-gas separation effect is improved, thereby reducing the content of refrigeration oil in the gas flowing out of the exhaust port.

[0004] To achieve the above objectives, the first aspect of this utility model provides an end cap assembly, including an end cap body, an exhaust pipe, and an oil baffle; the end cap body is a cap structure with one open end, one end of the exhaust pipe passes through the end cap body axially and extends into the interior of the end cap body, and the end of the exhaust pipe extending into the end cap body is provided with an exhaust port; the oil baffle includes an integrally formed connecting part and an oil baffle part, the connecting part is fixed inside the end cap body, the oil baffle part and the exhaust port are spaced apart, and the projection of the oil baffle part in the axial direction completely covers the exhaust port.

[0005] In one embodiment, the minimum distance between the oil baffle and the exhaust port is d, where d ≥ 2 mm.

[0006] In one embodiment, the oil baffle is curved, and a notch is obliquely provided on the oil baffle. The notch is spaced apart from the inner sidewall of the end cap body in the radial direction, and the inner curved surface of the oil baffle is obliquely downward toward the notch.

[0007] Therefore, according to the end cap assembly of this utility model, by providing an oil baffle inside the end cap body and making the oil baffle block in the axial direction of the exhaust port, when the end cap body covers the compressor housing, the high-speed gas from the pump structure does not directly enter the exhaust port after passing through the motor. Instead, it enters the exhaust port after multiple collisions between the inner wall of the end cap body and the oil baffle relative to the inner wall of the exhaust pipe. Each collision promotes oil-gas separation, resulting in a higher oil-gas separation effect in the high-speed gas. Furthermore, by using the downward tilt of the inner curved surface of the oil baffle, the separated refrigeration oil can be directed to flow back to the interior of the compressor housing along the inner curved surface of the oil baffle, thereby reducing the refrigeration oil content in the gas flowing out of the exhaust port and improving the energy efficiency of the compressor.

[0008] In one embodiment, the oil baffle is provided with several through holes.

[0009] In one embodiment, the oil-blocking part has a mesh structure.

[0010] In one embodiment, the oil baffle is U-shaped, with two U-shaped openings formed on one side of the oil baffle, and the other two sides of the oil baffle are respectively spaced apart on both sides of the exhaust pipe, and the inner bottom of the oil baffle is spaced apart from the exhaust port.

[0011] In one embodiment, one of the U-shaped opening masks has a closure section.

[0012] In one embodiment, the end cap body is provided with a wiring terminal, one end of which extends into the interior of the end cap body.

[0013] A second aspect of this utility model provides a compressor, including a compressor housing, a motor, a pump body structure, and an end cap assembly according to any one of the above. The compressor housing is a cylindrical structure with one open end. The motor and the pump body structure are respectively disposed inside the compressor housing. The end cap assembly covers the open end of the compressor housing. According to this utility model, the compressor, through the ingenious arrangement of the oil baffle, the end cap body, and the exhaust port, prevents refrigerant gas from being directly discharged from the exhaust port and improves the oil-gas separation effect, thereby reducing the refrigerant oil content in the gas flowing out of the exhaust port.

[0014] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of the end cap assembly according to an embodiment of the present utility model; Figure 2 This is a second structural schematic diagram of the end cap assembly according to an embodiment of the present utility model; Figure 3 for Figure 2 A schematic cross-sectional view along direction AA is shown. Figure 4 This is a partial cross-sectional schematic diagram of the compressor according to an embodiment of the present utility model; Figure 5 This is the third structural schematic diagram of the end cap assembly according to an embodiment of the present utility model; Figure 6 This is the fourth structural schematic diagram of the end cap assembly according to an embodiment of the present utility model; Figure 7 This is the fifth structural schematic diagram of the end cap assembly according to an embodiment of the present utility model; Figure 8 for Figure 7 A schematic cross-sectional view along the BB direction is shown. Figure 9 This is the sixth schematic diagram of the end cap assembly according to an embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures: 10. End cap body; 20. Exhaust pipe; 21. Exhaust port; 30. Oil baffle; 31. Connecting part; 32. Oil baffle; 33. Notch; 34. U-shaped opening; 35. Sealing part; 40. Wiring terminal; 50. Compressor housing; 60. Motor. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0019] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] In related technologies, rotary compressors mainly consist of a compressor housing, an end cover assembly, a motor, and a pump body structure. The end cover assembly is sealed at one end of the compressor housing's opening. The motor and pump body structure are respectively built into the compressor housing, and the motor drives the pump body structure to compress the refrigerant. During compressor operation, some of the refrigerant oil is easily carried by the refrigerant gas into the air conditioning system. This is especially true for high-displacement, high-frequency operating models, where the refrigerant oil is more likely to be discharged from the exhaust port of the end cover assembly, leading to a decrease in the compressor's cooling capacity and energy efficiency.

[0021] In view of this, the present invention provides an end cap assembly and a compressor having the same. According to the end cap assembly and compressor having the same, the clever arrangement between the oil baffle 30 and the end cap body 10 and the exhaust port 21 prevents refrigerant gas from being directly discharged from the exhaust port 21, and improves the oil-gas separation effect, thereby reducing the content of refrigeration oil in the gas flowing out of the exhaust port 21.

[0022] Please see Figures 1 to 9 The first aspect of this utility model provides an end cap assembly, including an end cap body 10, an exhaust pipe 20, and an oil baffle 30. The end cap body 10 is an open-end cap structure. One end of the exhaust pipe 20 passes through the end cap body 10 axially and extends into the interior of the end cap body 10, and the end of the exhaust pipe 20 extending into the end cap body 10 is provided with an exhaust port 21. The oil baffle 30 includes an integrally formed connecting portion 31 and an oil baffle portion 32. The connecting portion 31 is fixed inside the end cap body 10, and the oil baffle portion 32 is spaced apart from the exhaust port 21, and the projection of the oil baffle portion 32 in the axial direction completely covers the exhaust port 21. In addition, a wiring terminal 40 is provided on the end cap body 10, and one end of the wiring terminal 40 extends into the interior of the end cap body 10.

[0023] Specifically, in this embodiment of the present invention, the minimum distance between the oil-blocking part 32 and the exhaust port 21 is d, where d ≥ 2 mm. Furthermore, in this embodiment of the present invention, the oil-blocking part 32 is curved, and the oil-blocking member 30 has an inclined notch 33. The notch 33 is radially spaced from the inner sidewall of the end cap body 10, and the inner curved surface of the oil-blocking part 32 is inclined downwards towards the notch 33.

[0024] Therefore, according to the end cap assembly of this utility model, by providing an oil baffle 32 inside the end cap body 10, and making the oil baffle 32 form a blockage in the axial direction of the exhaust port 21, when the end cap body 10 covers the compressor housing 50, the high-speed gas from the pump structure will not directly enter the exhaust port 21 after passing through the motor 60. Instead, it will enter the exhaust port 21 after multiple collisions between the inner wall of the end cap body 10 and the oil baffle 32 relative to the inner wall of the exhaust pipe 20. Each collision can promote oil-gas separation, making the oil-gas separation effect in the high-speed gas higher. Furthermore, by using the downward tilt of the inner curved surface of the oil baffle 32, the separated refrigeration oil can be made to flow back to the interior of the compressor housing 50 along the inner curved surface of the oil baffle 32, thereby reducing the refrigeration oil content in the gas flowing out of the exhaust port 21 and improving the energy efficiency of the compressor.

[0025] Optionally, in some embodiments of this utility model, a plurality of through holes are provided through the oil-blocking part 32. It can be understood that, in these embodiments, by providing a plurality of through holes through the oil-blocking part 32, the efficiency of gas entering the inner curved surface of the oil-blocking part 32 can be improved.

[0026] Optionally, in some embodiments of this utility model, the oil-blocking part 32 is a mesh structure. This can be understood as follows: in these embodiments, the oil-blocking part 32 is designed as a mesh structure, and by designing its mesh size to be smaller than the size of a water droplet, the refrigeration oil can be adsorbed onto the mesh structure, improving the oil-gas separation effect.

[0027] Optionally, in some embodiments of the present invention, the oil baffle 32 is U-shaped, with two U-shaped openings 34 formed on one side of the oil baffle 32, and the other two sides of the oil baffle 32 are respectively spaced apart on both sides of the exhaust pipe 20, and the inner bottom of the oil baffle 32 is spaced apart from the exhaust port 21.

[0028] Optionally, in some embodiments of the present invention, the oil baffle 32 is U-shaped, with two U-shaped openings 34 formed on one side of the oil baffle 32, and the other two sides of the oil baffle 32 are respectively spaced apart on both sides of the exhaust pipe 20, and the inner bottom of the oil baffle 32 is spaced apart from the exhaust port 21; one of the U-shaped openings 34 is covered by a sealing part 35.

[0029] The following is combined with Figures 1 to 4The following is a detailed description of a specific embodiment of the end cap assembly according to the present invention. It is worth understanding that the following is merely an illustrative description and should not be construed as limiting the present invention.

[0030] This embodiment provides an end cap assembly, including an end cap body 10, an exhaust pipe 20, and an oil baffle 30. The end cap body 10 is an open-end cap structure. One end of the exhaust pipe 20 passes through the end cap body 10 axially and extends into the interior of the end cap body 10, and the end of the exhaust pipe 20 extending into the end cap body 10 is provided with an exhaust port 21. The oil baffle 30 includes an integrally formed connecting portion 31 and an oil baffle portion 32. The connecting portion 31 is fixed inside the end cap body 10, and the oil baffle portion 32 is spaced apart from the exhaust port 21, with the projection of the oil baffle portion 32 in the axial direction completely covering the exhaust port 21. In addition, a wiring terminal 40 is provided on the end cap body 10, and one end of the wiring terminal 40 extends into the interior of the end cap body 10.

[0031] Specifically, in this embodiment, the minimum distance between the oil-blocking part 32 and the vent 21 is d, where d = 5 mm. Furthermore, in this embodiment, the oil-blocking part 32 is curved, and a notch 33 is obliquely formed on the oil-blocking member 30. The notch 33 is radially spaced from the inner wall of the end cap body 10, and the inner curved surface of the oil-blocking part 32 is obliquely downwards towards the notch 33. Figure 4 As shown, it can be understood that the oil baffle 32 in this embodiment has an arc-shaped curved surface structure, and its inner curved surface is inclined downward toward the notch 33 so that when the refrigerant gas is reflected from the inside of the end cover body 10 and impacts the inner curved surface of the oil baffle 32, the refrigerant oil separated by the collision can flow along the inner curved surface of the oil baffle 32 toward the notch 33, and flow through the notch 33 toward the inside of the compressor housing 50, thereby promoting the return of the refrigerant oil.

[0032] The following is combined with Figures 5 to 8 The following is a detailed description of a specific embodiment of the end cap assembly according to the present invention. It is worth understanding that the following is merely an illustrative description and should not be construed as limiting the present invention.

[0033] This embodiment provides an end cap assembly, including an end cap body 10, an exhaust pipe 20, and an oil baffle 30. The end cap body 10 is an open-end cap structure. One end of the exhaust pipe 20 passes through the end cap body 10 axially and extends into the interior of the end cap body 10, and the end of the exhaust pipe 20 extending into the end cap body 10 is provided with an exhaust port 21. The oil baffle 30 includes an integrally formed connecting portion 31 and an oil baffle portion 32. The connecting portion 31 is fixed inside the end cap body 10, and the oil baffle portion 32 is spaced apart from the exhaust port 21, with the projection of the oil baffle portion 32 in the axial direction completely covering the exhaust port 21. In addition, a wiring terminal 40 is provided on the end cap body 10, and one end of the wiring terminal 40 extends into the interior of the end cap body 10.

[0034] Specifically, in this embodiment, the minimum distance between the oil baffle 32 and the exhaust port 21 is d, where d = 2 mm. Furthermore, in this embodiment, the oil baffle 32 is U-shaped, with two U-shaped openings 34 formed on one of its two sides. The other two sides of the oil baffle 32 are respectively spaced apart on both sides of the exhaust pipe 20, and the inner bottom of the oil baffle 32 is spaced apart from the exhaust port 21.

[0035] The following is combined with Figures 6 to 9 The following is a detailed description of a specific embodiment of the end cap assembly according to the present invention. It is worth understanding that the following is merely an illustrative description and should not be construed as limiting the present invention.

[0036] This embodiment provides an end cap assembly, including an end cap body 10, an exhaust pipe 20, and an oil baffle 30. The end cap body 10 is an open-end cap structure. One end of the exhaust pipe 20 passes through the end cap body 10 axially and extends into the interior of the end cap body 10, and the end of the exhaust pipe 20 extending into the end cap body 10 is provided with an exhaust port 21. The oil baffle 30 includes an integrally formed connecting portion 31 and an oil baffle portion 32. The connecting portion 31 is fixed inside the end cap body 10, and the oil baffle portion 32 is spaced apart from the exhaust port 21, with the projection of the oil baffle portion 32 in the axial direction completely covering the exhaust port 21. In addition, a wiring terminal 40 is provided on the end cap body 10, and one end of the wiring terminal 40 extends into the interior of the end cap body 10.

[0037] Specifically, in this embodiment, the minimum distance between the oil baffle 32 and the exhaust port 21 is d, where d = 4 mm. Furthermore, in this embodiment, the oil baffle 32 is U-shaped, with two U-shaped openings 34 formed on one of its sides. The other two sides of the oil baffle 32 are respectively spaced apart on both sides of the exhaust pipe 20, and the inner bottom of the oil baffle 32 is spaced apart from the exhaust port 21; one of the U-shaped openings 34 is covered by a sealing portion 35.

[0038] The second aspect of this utility model provides a compressor, including a compressor housing 50, a motor 60, a pump body structure, and an end cap assembly according to any one of the above. The compressor housing 50 is a cylindrical structure with one open end. The motor 60 and the pump body structure are respectively disposed inside the compressor housing 50. The end cap assembly covers the open end of the compressor housing 50. According to the compressor of this utility model, through the ingenious arrangement between the oil baffle 30, the end cap body 10, and the exhaust port 21, refrigerant gas is prevented from being directly discharged from the exhaust port 21, and the oil-gas separation effect is improved, thereby reducing the content of refrigeration oil in the gas flowing out of the exhaust port 21.

[0039] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the end cap assembly of the utility model and the compressor having it. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An end cap assembly, characterized in that: The device includes an end cap body, an exhaust pipe, and an oil baffle. The end cap body is an open-ended cap structure. One end of the exhaust pipe passes through the end cap body axially and extends into the interior of the end cap body. The end of the exhaust pipe extending into the end cap body has an exhaust port. The oil baffle includes an integrally formed connecting part and an oil baffle part. The connecting part is fixed inside the end cap body. The oil baffle part is spaced apart from the exhaust port. The projection of the oil baffle part in the axial direction completely covers the exhaust port.

2. The end cap assembly according to claim 1, characterized in that: The minimum distance between the oil baffle and the exhaust port is d, where d ≥ 2 mm.

3. The end cap assembly according to claim 1, characterized in that: The oil baffle is curved, and a notch is obliquely opened on the oil baffle. The notch is spaced apart from the inner sidewall of the end cap body in the radial direction, and the inner curved surface of the oil baffle is obliquely downward toward the notch.

4. The end cap assembly according to claim 3, characterized in that: The oil baffle is provided with several through holes.

5. The end cap assembly according to claim 1, characterized in that: The oil-blocking part has a mesh structure.

6. The end cap assembly according to claim 1, characterized in that: The oil baffle is U-shaped, with two U-shaped openings formed on one side of the oil baffle. The other two sides of the oil baffle are respectively spaced apart on both sides of the exhaust pipe, and the inner bottom of the oil baffle is spaced apart from the exhaust port.

7. The end cap assembly according to claim 6, characterized in that: One of the U-shaped opening masks has a closure section.

8. The end cap assembly according to claim 1, characterized in that: The end cap body is provided with a wiring terminal, one end of which extends into the interior of the end cap body.

9. A compressor, characterized in that: The device includes a compressor housing, a motor, a pump body structure, and an end cap assembly according to any one of claims 1 to 8, wherein the compressor housing is a cylindrical structure with one end open, the motor and the pump body structure are respectively disposed inside the compressor housing, and the end cap assembly covers one open end of the compressor housing.

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