Fin type exhaust passage structure and scroll compressor

Abstract

The utility model relates to the technical field of scroll compressors, in particular to a fin type exhaust passage structure and a scroll compressor, the fin type exhaust passage structure comprises an exhaust passage main body and an inner wall mounted on a tube shell of the scroll compressor, and an air inlet is formed in the upper part of the exhaust passage main body; the air inlet is right opposite to a gas passage of the scroll compressor, and an exhaust port is formed in the side portion of the exhaust channel body. And the plurality of fins are arranged at the exhaust port. According to the fin type exhaust passage structure and the scroll compressor, the problem that the oil circulation rate of an existing compressor is high can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scroll compressors, in particular to a fin type exhaust passage structure and a scroll compressor. BACKGROUND

[0002] Oil circulation refers to a small amount of refrigerant oil in the compressor mixing into the refrigerant to enter the system circuit, forming oil circulation, also known as oil discharge rate. When the oil circulation rate is high, it will have a negative impact on the performance and service life of the air conditioning system and the compressor.

[0003] In the existing compressor, after the refrigerant is compressed in the compression chamber, it enters the cavity formed between the rack and the motor through the gas passage, and then is discharged from the exhaust pipe. The refrigerant oil that is not separated in time will enter the air conditioning system pipeline with the refrigerant, resulting in a high oil circulation rate. CONTENT OF THE INVENTION

[0004] Therefore, the purpose of the present application is to provide a fin type exhaust passage structure and a scroll compressor to solve the problem of high oil circulation rate of the existing compressor.

[0005] According to the first aspect of the present application, a fin type exhaust passage structure is provided, wherein the fin type exhaust passage structure comprises: an exhaust passage main body installed on the inner wall of the tube shell of the scroll compressor, the upper part of the exhaust passage main body is provided with an air inlet, the air inlet is opposite to the gas passage of the scroll compressor, and the side part of the exhaust passage main body is provided with an exhaust port; and a plurality of fins arranged at the exhaust port.

[0006] Preferably, the exhaust passage main body comprises: an air inlet pipe portion arranged in the vertical direction, the air inlet is arranged at the top end of the air inlet pipe portion, the bottom end of the air inlet pipe portion is closed, and the exhaust port is arranged at the horizontal side of the air inlet pipe portion; and a flange portion arranged at the outer periphery of the air inlet pipe portion, the air inlet pipe portion is connected to the inner wall of the tube shell through the flange portion.

[0007] Preferably, the air inlet pipe portion comprises: a main plate arranged parallel to the inner wall of the tube shell, a gap is arranged between the main plate and the inner wall of the tube shell; a first side plate connected to the first side edge of the main plate in the horizontal direction, the first side plate is perpendicular to the main plate and connected to the flange portion; a second side plate connected to the second side edge of the main plate in the horizontal direction, the second side plate is perpendicular to the main plate and connected to the flange portion, and the exhaust port is arranged on the second side plate; and a bottom plate connecting the lower edge of the main plate and the inner wall of the tube shell, the bottom plate is perpendicular to the main plate.

[0008] Preferably, the flange part comprises a first flange edge connected with the first side plate, the first flange edge being attached to the inner wall of the pipe shell; and a second flange edge connected with the second side plate, the second flange edge being attached to the inner wall of the pipe shell, the second flange edge being provided with an extension at a position corresponding to the exhaust port, and the plurality of fins being arranged on the extension.

[0009] Preferably, the number of the plurality of fins is not less than three.

[0010] Preferably, the plurality of fins are arranged in sequence along the circumference of the pipe shell.

[0011] Preferably, the distance between the outer end of the fin and the inner wall of the pipe shell gradually increases in a direction away from the exhaust port.

[0012] Preferably, the angle between the fin and the inner wall of the pipe shell is a first angle, the first angle being greater than 30° and less than 60°.

[0013] According to the second aspect of the present application, a scroll compressor is provided, wherein the scroll compressor comprises a pipe shell, a frame, a motor and a fin-type exhaust passage structure as described above, the frame is mounted on the inner wall of the pipe shell, a gas passage is formed between the frame and the pipe shell, the air inlet of the fin-type exhaust passage structure is arranged directly below the gas passage, the motor is arranged in the pipe shell, the motor is provided with a winding, and the exhaust port of the fin-type exhaust passage structure is arranged between the winding and the pipe shell.

[0014] Preferably, the scroll compressor further comprises an exhaust pipe, the exhaust pipe being communicated with the inside of the pipe shell, and the exhaust pipe and the fin-type exhaust passage structure are arranged on opposite sides of the pipe shell.

[0015] The embodiment of the utility model discloses fin type exhaust passage structure and scroll compressor, its exhaust passage main part is installed in the inner wall of the pipe shell of scroll compressor. The gas inlet of exhaust passage main part is opposite the gas passage of scroll compressor and is arranged, so that the refrigerant gas mixed with liquid refrigerant oil will directly enter the exhaust passage main part after flowing from the gas passage. The exhaust port is arranged at the side of the exhaust passage main part, so that the movement direction of the refrigerant gas needs to change in the process of flowing from the gas inlet to the exhaust port, thereby enhancing the contact of the refrigerant gas and the exhaust passage main part to promote oil-gas separation. At the same time, the discharged refrigerant gas will flow around the pipe shell. In the process of flow around, because the weight of the refrigerant gas and the oil liquid refrigerant oil is different, they will be separated under the action of centrifugal force. In addition, a plurality of fins are arranged at the exhaust port, so that the refrigerant discharged from the exhaust port will collide with the fins, and the liquid refrigerant oil can be adsorbed by the fins, thereby separating from the refrigerant gas. The exhaust port is arranged between the winding and the pipe shell, so that the refrigerant gas will fully contact the winding after being discharged, which increases the separation efficiency of the refrigerant oil and can cool the winding of the motor. Further, the problem of high oil circulation rate of the existing compressor can be effectively solved, so that the problem of high oil circulation rate of the existing compressor can be effectively solved.

[0016] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a schematic view of a scroll compressor according to the utility model.

[0019] Figure 2 is a schematic view of a fin type exhaust passage structure and a pipe shell according to the utility model.

[0020] Figure 3 is a schematic view of another angle of a fin type exhaust passage structure and a pipe shell according to the utility model.

[0021] Figure 4 is a schematic view of a fin type exhaust passage structure according to the utility model.

[0022] Figure 5is a schematic view of another angle of the finned exhaust passage structure according to the utility model.

[0023] Figure 6 is a schematic view of still another angle of the finned exhaust passage structure according to the utility model.

[0024] Reference signs: 1-exhaust passage main body; 10-inlet pipe part; 100-main body plate; 101-first side plate; 102-second side plate; 103-bottom plate; 11-first flange edge; 12-second flange edge; 120-extension part; 2-fin; 13-inlet; 14-outlet; 3-first included angle; 4-scroll compressor; 40-tube shell; 41-frame; 410-gas passage; 42-motor; 420-winding; 43-exhaust pipe. DETAILED DESCRIPTION

[0025] The following detailed description is presented to aid in understanding the method, apparatus and / or system described herein. It is not intended to limit the method, apparatus and / or system described herein to the details described. Rather, it is intended to cover any modifications, variations, and equivalents that are within the scope of the present disclosure, which is defined by the appended claims. For instance, the order in which operations are described is not intended to be limiting unless the context otherwise requires. Furthermore, features described herein can be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, these examples were provided so that this disclosure is thorough, and fully conveys the scope of the method, apparatus and / or system to others skilled in the art.

[0026] The features described herein can be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, these examples were provided so that this disclosure is thorough, and fully conveys the scope of the method, apparatus and / or system to others skilled in the art.

[0027] Throughout the specification, when an element (such as a layer, region or substrate) is referred to as being "on" another element, "connected to" another element, "coupled to" another element, "adjacent to" another element, "on top of" another element, or "covering" another element, it can be directly on, connected to, coupled to, adjacent to, on top of, or covering the other element, or one or more other elements can be interposed therebetween. In contrast, when an element is referred to as being "directly on", "directly connected to", "directly coupled to", "directly adjacent to", "directly on top of", or "directly covering" another element, there are no other elements interposed therebetween.

[0028] As used herein, the term "and / or" includes any one and any combination of the associated items.

[0029] Although terms such as "first", "second", and "third" can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, elements, components, regions, layers and / or sections referred to as a first element, component, region, layer or section in the examples described herein can also be referred to as a second element, component, region, layer or section without departing from the teachings of the examples.

[0030] For ease of description, spatial relationship terms, such as "on", "upper", "under", and "lower", can be used herein to describe the relationship between one element and another element as shown in the drawings. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as on "upper" or "upper" relative to another element would then be oriented "under" or "lower" relative to the other element. Accordingly, the term "on" encompasses both an "on" and "under" orientation based on the spatial orientation of the device. The device can be oriented in other ways (e.g., rotated 90 degrees or at other orientations) and an appropriate re-interpretation of the spatial relationship terms used herein will be made.

[0031] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of examples. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" and "contains", "containing" as used herein, list the presence of stated features, integers, operations, elements, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components and / or combinations thereof.

[0032] Variations in shapes depicted in the drawings can occur as a result of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the specific shapes described herein but include variations in shapes that occur during manufacturing.

[0033] Features of the examples described herein can be combined with features of other examples in accordance with the disclosure, as would be apparent to one of ordinary skill in the art after having the benefit of the present disclosure. In addition, although a variety of examples have been described here, many variations are possible as would be apparent to one of ordinary skill in the art after having the benefit of the present disclosure.

[0034] As Figures 1 to 6As shown, according to a first aspect of the present invention, a finned exhaust passage structure is provided, which includes an exhaust passage body 1 and fins 2.

[0035] In the following description, reference will be made to Figures 1 to 6 The specific structure of the above-mentioned components and their connection relationships are described in detail.

[0036] like Figures 1 to 6 As shown, in this embodiment, the exhaust channel body 1 can be installed on the inner wall of the casing 40 of the scroll compressor 4. The exhaust channel body 1 can include an inlet 13 and an outlet 14. The inlet 13 can be positioned directly opposite the gas passage 410 of the scroll compressor 4, so that the refrigerant gas mixed with liquid refrigeration oil flows directly into the exhaust channel body 1 after exiting the gas passage 410. The outlet 14 can be located on the side of the exhaust channel body 1, so that the refrigerant gas changes direction as it flows from the inlet 13 to the outlet 14, thereby enhancing the contact between the refrigerant gas and the exhaust channel body 1 and promoting oil-gas separation. Simultaneously, the discharged refrigerant gas will flow around the casing 40 circumferentially. During this flow, due to the weight difference between the refrigerant gas and the liquid refrigeration oil, they will separate under the action of centrifugal force. In addition, several fins 2 are provided at the exhaust port 14, so that the refrigerant discharged from the exhaust port 14 will collide with the fins 2, and the liquid refrigeration oil can be adsorbed by the fins 2, thereby separating it from the refrigerant gas, thus effectively reducing the oil circulation rate.

[0037] Preferred, such as Figures 1 to 6 As shown, in this embodiment, the exhaust channel body 1 may include an intake pipe section 10 and a flange section. The intake pipe section 10 may be a tubular structure with one side open, and it may be fastened to the inner wall of the casing 40, forming a channel for gas flow between the intake pipe section 10 and the inner wall of the casing 40. The intake pipe section 10 may be arranged vertically, and the intake port 13 may be located at the top of the intake pipe section 10. The bottom end of the intake pipe section is closed, and the exhaust port 14 may be located on the horizontal side of the intake pipe section 10, causing the refrigerant gas to deflect 90° within the intake pipe section 10 to enhance the contact between the refrigerant gas and the pipe wall. The flange section may be located on the outer periphery of the intake pipe section 10. The flange section may be welded to the inner wall of the casing 40, and the intake pipe may be integrally formed with the intake pipe section 10. The intake pipe section 10 is connected to the inner wall of the casing 40 via the flange section.

[0038] Furthermore, preferably, such as Figures 3 to 5As shown, in this embodiment, the intake pipe 10 may include a main body plate 100, a first side plate 101, a second side plate 102, and a bottom plate 103. The main body plate 100 may be a rectangular plate, and it may be arranged parallel to the inner wall of the pipe housing 40 (i.e., in an arc shape). A gap is provided between the main body plate 100 and the inner wall of the pipe housing 40 for the flow of refrigerant gas. The first side plate 101 may be connected to a first side of the main body plate 100 in the horizontal direction (such as...). Figure 4 (As shown in the left side). The first side plate 101 is perpendicular to the main body plate 100 and connected to the flange. The second side plate 102 can be connected to the second side of the main body plate 100 in the horizontal direction (it can be as shown in the left side). Figure 4 (As shown on the right side). The second side plate 102 is perpendicular to the main body plate 100 and connected to the flange, thus forming a cavity for refrigerant gas flow together with the first side plate 101. The exhaust port 14 can be located at the lower part of the second side plate 102. The bottom plate 103 can connect the lower side of the main body plate 100 to the inner wall of the pipe shell 40, thereby sealing the bottom end of the air inlet pipe. The bottom plate 103 can be perpendicular to the main body plate 100. Preferably, the main body plate 100, the first side plate 101, the second side plate 102, and the bottom plate 103 can be integrally formed.

[0039] Further optimized, such as Figures 3 to 5 As shown, in this embodiment, the flange portion may include a first flange edge 11 and a second flange edge 12. The first flange edge 11 can be connected to the first side plate 101, and is attached to and welded to the inner wall of the pipe shell 40. The second flange edge 12 can be connected to the second side plate 102, and is attached to and welded to the inner wall of the pipe shell 40. Additionally, the second flange edge 12 may have an extension 120 at the position corresponding to the exhaust port 14. Specifically, the first flange edge 11 and the second flange edge 12 can be strip-shaped plates, and the extension 120 can be formed at the lower part of the second flange edge 12. The extension 120 can be a rectangular plate, and the width of the extension 120 is greater than the length of the exhaust port 14. The extension 120 extends along the inner wall of the pipe shell 40, and a plurality of fins 2 are disposed on the extension 120.

[0040] Preferred, such as Figures 3 to 6 As shown, in this embodiment, the fin 2 can be a plate arranged in a vertical direction, and the inner end of the fin 2 (i.e., as shown) Figure 6 The right end (shown in the diagram) is connected to the extension 120. The length of the fin 2 can be greater than the length of the exhaust port 14, and the length of the fin 2 is less than the width of the extension 120. The fin 2 can be integrally formed with the extension 120. Preferably, the number of the plurality of fins 2 can be no less than three, thereby ensuring the effect of the fins 2 in blocking the refrigerant gas.

[0041] Preferred, such as Figures 3 to 6 As shown, in this embodiment, a plurality of fins 2 can be arranged sequentially along the circumference of the tube shell 40. An angle (i.e., a first angle 3) can be formed between the fins 2 and the inner wall of the tube shell 40, allowing the fins 2 to block the airflow discharged from the exhaust port 14. The first angle 3 can be greater than 30° and less than 60°. With this arrangement, the fins 2 can effectively block the refrigerant gas, allowing liquid refrigeration oil to be adsorbed onto the fins 2.

[0042] Further optimized, such as Figure 6 As shown, in this embodiment, the included angles between the plurality of fins 2 and the inner wall of the tube shell 40 can be the same, and the widths of the plurality of fins 2 can be different. Specifically, the width of the fins 2 can gradually increase in the direction away from the exhaust port 14, such that the outer end of the fins 2 (i.e., as shown in the figure) Figure 6 The distance between the left end shown and the inner wall of the tube shell 40 gradually increases in the direction away from the exhaust port 14. This arrangement ensures that all the fins 2 can block the refrigerant gas, thereby improving the oil-gas separation efficiency.

[0043] In addition, such as Figure 1 and Figure 2 As shown, according to a second aspect of the present invention, a scroll compressor 4 is provided. The scroll compressor 4 includes a housing 40, a frame 41, a motor 42, and a finned exhaust passage structure as described above. The frame 41 can be welded to the inner wall of the housing 40, and a gas passage 410 is formed between the frame 41 and the housing 40. The inlet 13 of the finned exhaust passage structure is located directly below the gas passage 410 to receive refrigerant gas discharged from the bottom end of the gas passage 410. The motor 42 is also installed inside the housing 40, and is located below the finned exhaust passage structure. The motor 42 has an annular winding 420, and the exhaust port 14 of the finned exhaust passage structure is sandwiched between the winding 420 and the housing 40, allowing the refrigerant gas flowing from the exhaust port 14 to flow through the winding 420.

[0044] Further optimized, such as Figure 1 and Figure 2 As shown, the scroll compressor 4 may further include an exhaust pipe 43, which connects to the interior of the casing 40. Preferably, the exhaust pipe 43 and the finned exhaust passage structure can be located on opposite sides of the casing 40 to increase the path of refrigerant gas flow, thereby improving the oil separation effect. The refrigerant gas discharged from the exhaust port 14 needs to pass through the winding 420 to reach the exhaust pipe 43, so that the refrigerant gas can have sufficient contact with the winding 420.

[0045] During use, the gas inlet 13 of the finned exhaust passage structure is arranged opposite the gas passage 410 of the scroll compressor 4, so that the refrigerant gas mixed with the liquid refrigerant oil directly enters the exhaust passage body 1 after flowing out of the gas passage 410. The exhaust port 14 is arranged at the side of the exhaust passage body 1, so that the movement direction of the refrigerant gas needs to change during the process of flowing from the gas inlet 13 to the exhaust port 14, thereby enhancing the contact between the refrigerant gas and the exhaust passage body 1 to promote oil-gas separation. At the same time, the discharged refrigerant gas flows along the circumferential direction of the pipe shell 40. During the circumferential flow, the refrigerant gas and the oil liquid refrigerant oil are separated under the action of centrifugal force due to the different weights of the two. In addition, the fins 2 are arranged at the exhaust port 14, so that the refrigerant discharged from the exhaust port 14 collides with the fins 2, and the liquid refrigerant oil can be adsorbed by the fins 2, thereby being separated from the refrigerant gas. The exhaust port 14 is arranged between the winding 420 and the pipe shell 40, so that the refrigerant gas will be in full contact with the winding 420 after being discharged, which increases the separation efficiency of the refrigerant oil and can cool the winding 420 of the motor 42, thereby effectively reducing the oil circulation rate of the scroll compressor 4.

[0046] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present application, which are used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily think of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed by the present application, or make equivalent replacements to some technical features thereof. Such modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A finned exhaust passage structure provided in a scroll compressor, characterized by, The finned exhaust passage structure comprises: an exhaust passage body mounted to an inner wall of a shell of the scroll compressor, an upper portion of the exhaust passage body being provided with an air inlet opening, the air inlet opening facing a gas passage of the scroll compressor, a side portion of the exhaust passage body being provided with an air outlet opening; and a plurality of fins provided at the air outlet opening.

2. The finned exhaust passage structure according to claim 1, characterized by, The exhaust passage body comprises: an air inlet pipe portion provided in a vertical direction, the air inlet opening being formed at a top end of the air inlet pipe portion, a bottom end of the air inlet pipe portion being closed, the air outlet opening being formed at a horizontal direction side of the air inlet pipe portion; and a flange portion provided at an outer periphery of the air inlet pipe portion, the air inlet pipe portion being connected to the inner wall of the shell through the flange portion.

3. The finned exhaust passage structure according to claim 2, characterized by The air inlet pipe portion comprises: a main plate provided parallel to the inner wall of the shell, a gap being provided between the main plate and the inner wall of the shell; a first side plate connected to a first side edge of the main plate in a horizontal direction, the first side plate being perpendicular to the main plate and connected to the flange portion; a second side plate connected to a second side edge of the main plate in the horizontal direction, the second side plate being perpendicular to the main plate and connected to the flange portion, the air outlet opening being provided on the second side plate; and a bottom plate connecting a lower side edge of the main plate and the inner wall of the shell, the bottom plate being perpendicular to the main plate.

4. The finned exhaust passage structure according to claim 3, characterized by The flange portion comprises: a first flange edge connected to the first side plate, the first flange edge being fitted to the inner wall of the shell; and a second flange edge connected to the second side plate, the second flange edge being fitted to the inner wall of the shell, the second flange edge being provided with an extension portion at a position corresponding to the air outlet opening, the plurality of fins being provided on the extension portion.

5. The finned exhaust passage structure according to claim 1, characterized by The number of the plurality of fins is not less than three.

6. The finned exhaust passage structure according to claim 5, characterized by The plurality of fins are sequentially provided along a circumferential direction of the shell.

7. The finned exhaust passage structure according to claim 6, characterized by Distances from outer ends of the fins to the inner wall of the shell gradually increase in a direction away from the air outlet opening.

8. The finned exhaust passage structure according to claim 5, characterized by An included angle between the fins and the inner wall of the shell is a first included angle, the first included angle being greater than 30° and less than 60°.

9. A scroll compressor characterized by, The scroll compressor comprises a shell, a frame, a motor and the finned exhaust passage structure according to any one of claims 1 to 8, the frame being mounted to an inner wall of the shell, a gas passage being formed between the frame and the shell, the air inlet opening of the finned exhaust passage structure being provided directly below the gas passage, the motor being provided in the shell, the motor being provided with a winding, the air outlet opening of the finned exhaust passage structure being provided between the winding and the shell.

10. The scroll compressor of claim 9, wherein, The scroll compressor further comprises an exhaust pipe, the exhaust pipe being communicated with an inside of the shell, the exhaust pipe and the finned exhaust passage structure being provided on opposite sides of the shell.

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