Split type support mechanism and scroll compressor thereof

Abstract

The invention discloses a split type support mechanism and a scroll compressor thereof. The split type support mechanism comprises an upper support and a floating gasket connected to the upper support. The upper support is provided with at least two support flow channels, the floating gasket is provided with at least two gasket flow channels, and the floating gasket is connected to the upper support in an angle-adjustable mode so that the gasket flow channels can be communicated with the support flow channels at different positions. The support is improved to be of a combined structure of the upper support and the floating gasket, angle setting of different suction and exhaust pipes can be achieved only by adjusting the alignment angle of the floating gasket and the upper support according to actual application scenes, operation is easy, adaptability is high, the oil spitting rate is not affected, and additional cost does not need to be increased.

Description

Technical Field

[0001] The present invention relates to the technical field of scroll compressors, and particularly to a split bracket mechanism and a scroll compressor thereof. Background Art

[0002] In existing scroll compressors, generally during the operation of the compressor, the refrigerant-lubricant mixed gas is passively compressed by the static pressure plate and discharged from the exhaust port to the upper cavity of the compressor, and then flows into the middle cavity of the compressor through the flow-through groove of the upper bracket. However, when the compressor is used in different systems and different application scenarios, according to different application scenarios, the angle of the suction and discharge pipe will change by a certain angle. The angle between the suction and discharge pipe and the flow-through groove of the upper bracket also needs to change accordingly, which will affect the oil discharge rate of the compressor to a certain extent. In the prior art, for different scenarios, generally the structure of the upper bracket is modified to adapt to different scenarios, but this modification is rather troublesome and increases the cost. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a split bracket mechanism and a scroll compressor thereof, so as to solve the technical problem that it is rather complicated and the cost increases to modify the upper bracket when the suction and discharge pipes of the existing scroll compressor adapt to different scenarios.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] In a first aspect, an embodiment of the present invention provides a split bracket mechanism, which includes: an upper bracket and a floating washer connected to the upper bracket;

[0006] At least two bracket flow channels are provided on the upper bracket, at least two washer flow channels are provided on the floating washer, and the floating washer is connected to the upper bracket at an adjustable angle, so that the washer flow channels communicate with the bracket flow channels at different positions.

[0007] Wherein, an annular connection surface is provided at the top of the upper bracket, an annular docking surface is provided at the bottom of the floating washer, and the annular docking surface is docked to the annular connection surface at an adjustable angle.

[0008] Wherein, a plurality of connection holes are provided on the annular connection surface, a plurality of docking holes passing through the annular docking surface are provided on the floating washer, and the floating washer is connected to the upper bracket through connecting pieces passing through the connection holes and the docking holes.

[0009] Wherein, the connecting piece is a screw, the connection hole is a threaded hole, and the screw is screwed into the threaded hole.

[0010] Wherein, the connection holes and the docking holes are arranged at equal intervals.

[0011] Among them, the bracket flow channel extends along the axial direction of the upper bracket and is opened on the outer side wall of the upper bracket; the gasket flow channel extends along the axial direction of the floating gasket and is opened on the outer side wall of the floating gasket.

[0012] Among them, the number of the bracket flow channels is 2 - 4.

[0013] Among them, the number of the gasket flow channels is 1 - 2.

[0014] Among them, the axial thickness of the floating gasket is 10.038 - 10.048 mm.

[0015] In a second aspect, an embodiment of the present invention further provides a scroll compressor, which includes the split bracket mechanism described in any one of the above.

[0016] Compared with the prior art, the split bracket mechanism of the present invention and its scroll compressor have the following technical effects: the bracket is improved into a structure combined with an upper bracket and a floating gasket. According to the actual application scenario, only by adjusting the alignment angle between the floating gasket and the upper bracket, the angles of different suction and exhaust pipes can be achieved. The operation is simple, the adaptability is strong, no additional cost is required, and the oil discharge rate of the compressor is not affected.

[0017] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following preferred embodiments are specifically described in detail as follows. Description of the Drawings

[0018] Figure 1 is an axial sectional view of the whole scroll compressor according to an embodiment of the present invention.

[0019] Figure 2 is a top view of the scroll compressor according to an embodiment of the present invention.

[0020] Figure 3 is an exploded schematic view of the split bracket mechanism according to an embodiment of the present invention.

[0021] Figure 4 is a partial structural schematic view of the floating gasket part of the split bracket mechanism according to an embodiment of the present invention.

[0022] Figure 5 is a partial structural schematic view of the upper bracket part of the split bracket mechanism according to an embodiment of the present invention.

[0023] Figure 6 is Figure 1 a partially enlarged structural schematic view of A in

[0024] Description of the Reference Numerals:

[0025] Upper bracket 1, floating washer 2, scroll compression assembly 3, housing 4, drive unit 5, base assembly 6, crankshaft 7, exhaust pipe 8, split bracket mechanism 10, bracket body 11, through hole 12, annular mounting groove 13, connecting piece 20, annular body 21, flow-through groove 30, static pressure plate 31, dynamic pressure plate 32, upper cavity 41, middle cavity 42, scroll compressor 100, annular connection surface 110, bracket flow channel 111, first bracket flow channel 112, second bracket flow channel 113, third bracket flow channel 114, annular docking surface 210, washer flow channel 211, first washer flow channel 212, exhaust port 311, connection hole 1101, docking hole 2101. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0030] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0032] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0033] In existing scroll compressors, generally during the operation of the compressor, the refrigerant-lubricant mixture is compressed passively by the static pressure plate and discharged from the exhaust port to the upper cavity of the compressor, and then flows into the middle cavity of the compressor through the flow-through groove of the upper bracket. However, when the compressor is used in different systems and different application scenarios, according to different application scenarios, the angle of the suction and discharge pipe will change by a certain angle. The angle between the suction and discharge pipe and the flow-through groove of the upper bracket also needs to change accordingly, which will affect the oil discharge rate of the compressor to a certain extent. In the prior art, for different scenarios, generally the structure of the upper bracket is modified to adapt to different scenarios, but this modification is rather troublesome and increases the cost. Therefore, based on the above requirements, this embodiment provides a split bracket mechanism 10 and its scroll compressor 100.

[0034] Please refer to Figures 1 to 6, this embodiment discloses a split bracket mechanism 10, which is applied to a scroll compressor 100. The split bracket mechanism 10 includes: an upper bracket 1 and a floating washer 2 connected to the upper bracket 1;

[0035] At least two bracket flow channels 111 are provided on the upper bracket 1, and at least two washer flow channels 211 are provided on the floating washer 2. The floating washer 2 is connected to the upper bracket 1 at an adjustable angle so that the washer flow channels 211 communicate with the bracket flow channels 111 at different positions.

[0036] When the split bracket mechanism 10 is applied to the scroll compressor 100, an intake pipe (not shown in the figure) and an exhaust pipe 8 are provided on the shell 4 of the scroll compressor 100. Due to different application environments, the intake pipe and the exhaust pipe 8 need to be provided at different positions on the shell 4. The position of the through-flow groove 30 formed by the bracket flow channels 111 and the washer flow channels 211 in relation to the upper cavity 41 and the middle chamber 42 of the scroll compressor 100, as well as the position relationship with the intake pipe and the exhaust pipe 8, needs to remain relatively unchanged. Otherwise, it will affect the oil discharge rate of the scroll compressor 100 and ultimately affect the compression efficiency of the scroll compressor 100.

[0037] In the prior art, to meet the above technical requirements for different application scenarios, generally, the upper bracket 1 part is modified to adapt to the intake pipe and the exhaust pipe 8 at different installation positions and angles. Due to the complexity and flexibility of its use scenarios, the solutions of the prior art are inconvenient to operate and will increase additional costs, which is not conducive to the flexible application of the scroll compressor 100.

[0038] In this embodiment, the traditional single upper bracket is improved to a combined structure design of the upper bracket 1 and the floating washer 2. According to different application scenarios, only by adjusting the alignment and assembly angle of the upper bracket 1 and the floating washer 2, the installation requirements of the intake pipe and the exhaust pipe 8 at different angles can be achieved, and the oil discharge rate of the scroll compressor 100 will not be affected.

[0039] Please refer to again Figure 5 and Figure 6 , a ring connection surface 110 is provided at the top of the upper bracket 1, and a ring docking surface 210 is provided at the bottom of the floating washer 2. The ring docking surface 210 is docked to the ring connection surface 110 at an adjustable angle. In this embodiment, by providing the ring connection surface 110 and the ring docking surface 210 on the upper bracket 1 and the floating washer 2 respectively, the docking and assembly at any radial angle between the two can be realized, and a sealed state is maintained between the docking surfaces after assembly.

[0040] Among them, a plurality of connection holes 1101 are provided on the annular connection surface 110, and a plurality of docking holes 2101 penetrating the annular docking surface 210 are provided on the floating washer 2. The floating washer 2 is connected to the upper bracket 1 through a connector 20 penetrating through the connection holes 1101 and the docking holes 2101.

[0041] Specifically, the connector 20 is a screw, the connection hole 1101 is a threaded hole, and the screw is screwed into the threaded hole 1101. The docking hole 2101 and the connection hole 1101 both extend axially. After adjusting the floating washer 2 and the upper bracket 1 to the required angle, the connector 20 is passed through the connection hole 1101 and the docking hole 2101, and then the floating washer 2 and the upper bracket 1 can be fixedly connected. After the floating washer 2 and the upper bracket 1 are connected in different angular alignments, the bracket flow channel 111 and the washer flow channel 211 are communicated at different angles. At this time, the structure of the upper bracket 1 does not need to be modified to meet the alignment requirements with different suction pipes and exhaust pipes 8.

[0042] In this embodiment, the connection holes 1101 and the docking holes 2101 are equally spaced. In other embodiments, the positions of the connection holes 1101 and the docking holes 2101 can also be adjusted according to the alignment and communication relationship between the bracket flow channel 111 and the washer flow channel 211, and are not limited to a uniform distribution.

[0043] As Figure 5 shown, the upper bracket 1 includes a bracket body 11, which has a cylindrical structure, and a through hole 12 is provided at its axial center for passing through the dynamic pressure plate 32. An annular installation groove 13 is further provided on the upper end surface of the bracket body 11 for installing the static pressure plate 31. After the static pressure plate 31 and the dynamic pressure plate 32 are assembled, a scroll compression assembly 3 is formed.

[0044] As Figure 4 shown, the floating washer 2 includes an annular body 21, and the docking holes 2101 are axially opened along the annular body 21. When the floating washer 2 is assembled to the upper bracket 1, the floating washer 2 is located outside the static pressure plate 31.

[0045] Furthermore, the bracket flow channel 111 extends along the axis of the upper bracket 1 and is opened on the outer wall of the upper bracket 1; the washer flow channel 211 extends along the axis of the floating washer 2 and is opened on the outer wall of the floating washer 2.

[0046] In this embodiment, the number of the bracket flow channels 111 is 2 - 4, and the remaining bracket flow channels are the first bracket flow channel 112, the second bracket flow channel 113, and the third bracket flow channel 114 respectively.

[0047] The number of the washer flow channels 211 is 1 - 2, and the remaining washer flow channels are the first washer flow channels 212 respectively. Among them, the circumferential length of the washer flow channel 211 is less than that of the bracket flow channel 211, that is, the arc length of the washer flow channel 211 on its circular line is less than that of the bracket flow channel 211.

[0048] In this embodiment, the number of the flow-through grooves 30 formed by the bracket flow channels 111 and the washer flow channels 211 is generally appropriately 2 - 3. A smaller number of flow-through grooves will easily increase the exhaust resistance and the power consumption of the compressor, while a larger number of flow-through grooves will impact the air flow in the upper-middle cavity 42 and affect the overall noise of the compressor.

[0049] The floating washer 2 is related to the floating amount of the pump body of the scroll compressor 100. Compared with the traditional overall matching method, this solution can be matched through the overall height of the floating washer 2, and the split upper bracket 1 can be arbitrarily matched, which can better improve the assembly efficiency in the assembly process.

[0050] In this embodiment, the axial thickness of the floating washer is 10.038 - 10.048 mm. A smaller height will result in insufficient floating amount of the pump body of the scroll compressor 100 up and down, which will in turn cause wear between the pump bodies. A larger height will affect the fitting clearance between the pump bodies and cause series leakage in the gas compression middle cavity.

[0051] Please refer to again Figure 1 and Figure 6 , this embodiment also provides a scroll compressor 100, which includes the split bracket mechanism 10 as described above.

[0052] The scroll compressor 100 further includes a housing 4, a driving unit 5 arranged in the housing 4, and a scroll compression assembly 3 controlled by the driving unit 4. The scroll compression assembly 3 is assembled on the split bracket mechanism 10. The driving unit 4 is a motor rotor assembly and a motor stator assembly. The output end of the rotor of the motor rotor assembly is further connected with a crankshaft 7, and the crankshaft 7 is connected to a dynamic pressure plate 32. The lower end of the rotating shaft of the motor rotor assembly is supported by a base assembly 6, and the base assembly 6 is used to support the rotating shaft and can be used to reduce its rotation resistance.

[0053] The space below the driving unit 5 and above the split bracket mechanism 10 and the housing 4 together enclose a middle cavity 42, and the space above the scroll compression assembly 3 and the top of the housing 4 together enclose an upper cavity 41. During the working process of the scroll compressor 100, after the compressed refrigerant and lubricant mixture are discharged from the exhaust port 311, they flow back to the middle cavity 42 through the flow-through grooves 30.

[0054] The drive unit 5 and the base assembly 6 of the scroll compressor 100 can both adopt the structures in the prior art, and will not be elaborated herein in this embodiment.

[0055] The exhaust pipe 8 is connected to the middle cavity 42 and is located on the side wall of the outer shell 4. After the compressed refrigerant and condensate mixture is discharged from the exhaust port 311, it flows from the upper cavity 41 to the middle cavity 42 through the flow groove 30, and then is discharged from the middle cavity 42 through the exhaust pipe 8. Among them, the communication channel between the upper cavity 41 and the middle cavity 42 is the flow groove 30. When the exhaust pipe 8 is located directly below the flow groove 30, the oil spitting rate efficiency is the highest.

[0056] However, during actual use, the installation position of the exhaust pipe 8 needs to change the angle according to the environment (that is, set at different positions on the side wall of the outer shell 4). In order to avoid modifying the structure of the upper bracket 1 and reduce the operation difficulty, in the scroll compressor 100 of this embodiment, through the different alignment angle installation methods between the floating gasket 2 and the upper bracket 1, the floating gasket 2 can be adjusted according to the position of the exhaust pipe 8, so that the flow groove 30 formed between the floating gasket 2 and the upper bracket 1 is located above the exhaust pipe 8. While not affecting the oil spitting rate, the exhaust pipe 8 can be flexibly set at any position on the side wall of the outer shell 4.

[0057] Specifically, the floating gasket 2 is provided with a gasket flow channel 211, and the upper bracket 1 is provided with a bracket flow channel 111. When the position of the exhaust pipe 8 changes, only the alignment installation angle between the floating gasket 2 and the upper bracket 1 needs to be adjusted. The gasket flow channel 211 on the floating gasket 2 only connects the aligned bracket flow channel 111 at the position above the exhaust pipe 8, and the bracket flow channels 111 at other positions are blocked and sealed, so as to keep the exhaust pipe 8 always below the flow groove 30.

[0058] The split bracket mechanism and its scroll compressor in this embodiment have the following technical effects compared with the prior art: it improves the bracket into a structure combined with an upper bracket and a floating gasket. According to the actual application scenario, only by adjusting the alignment angle between the floating gasket and the upper bracket, different angles of the suction and exhaust pipes can be achieved. Its operation is simple, the adaptability is strong, no additional cost is required, and the oil spitting rate of the compressor will not be affected.

[0059] The above only further illustrates the technical content of the present invention with examples to make it easier for readers to understand, but it does not mean that the implementation manners of the present invention are limited to this. Any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A split bracket mechanism, characterized in that, Comprising: An upper bracket and a floating washer connected to the upper bracket; At least two bracket flow channels are provided on the upper bracket, and at least two washer flow channels are provided on the floating washer. The floating washer is connected to the upper bracket at an adjustable angle, so that the washer flow channels communicate with the bracket flow channels at different positions.

2. The split bracket mechanism according to claim 1, characterized in that, An annular connection surface is provided at the top end of the upper bracket, and an annular docking surface is provided at the bottom of the floating washer. The annular docking surface is docked to the annular connection surface at an adjustable angle.

3. The split bracket mechanism according to claim 2, wherein, A plurality of connection holes are provided on the annular connection surface, and a plurality of docking holes passing through the annular docking surface are provided on the floating washer. The floating washer is connected to the upper bracket by a connecting member passing through the connection holes and the docking holes.

4. The split bracket mechanism according to claim 3, wherein The connecting member is a screw, the connection hole is a threaded hole, and the screw is screwed into the threaded hole.

5. The split bracket mechanism according to claim 3, wherein The connection holes and the docking holes are arranged at equal intervals.

6. The split bracket mechanism according to claim 1, characterized in that, The bracket flow channels extend along the axial direction of the upper bracket and are formed on the outer side wall of the upper bracket; the washer flow channels extend along the axial direction of the floating washer and are formed on the outer side wall of the floating washer.

7. The split bracket mechanism according to any one of claims 1 to 6, characterized in that, The number of the bracket flow channels is 2 - 4.

8. The split bracket mechanism according to claim 7, wherein The number of the washer flow channels is 1 - 2.

9. The split bracket mechanism according to any one of claims 1 to 6, characterized in that, The axial thickness of the floating washer is 10.038 - 10.048 mm.

10. A scroll compressor, characterized in that, The scroll compressor includes the split bracket mechanism according to any one of claims 1 to 9.

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