compressor

Abstract

The present application provides a kind of compressor.In one embodiment, the compressor 100, comprising: shell 101, shell 101 with air inlet 82;First scroll plate 11 and second scroll plate 12, are arranged in shell 101 to form scroll assembly 10, and the compression cavity for compressing medium is defined between first scroll plate 11 and second scroll plate 12;Motor 7, arranged in shell 101, for driving first scroll plate 11 rotates along its rotation axis;And shielding member 83, is arranged between air inlet 82 and scroll assembly 10.According to the compressor provided by the embodiment of the present application, the performance is improved.

Description

Technical Field

[0001] This invention relates to the field of compressor technology. Background Technology

[0002] In a scroll compressor, the gaseous refrigerant to be compressed from the inlet is usually mixed with liquid refrigerant (in fact, the gas to be compressed and the liquid refrigerant are different forms of the same substance). Since liquid refrigerant cannot be compressed, once a large amount of liquid refrigerant is drawn in, it will cause damage to the scroll. Summary of the Invention

[0003] The purpose of embodiments of the present invention is to provide a compressor that can improve the reliability of the compressor, for example, by preventing liquid refrigerant from directly entering the compression chamber of the scroll assembly, so as to avoid damage to the scroll assembly.

[0004] According to one aspect of the present invention, a compressor is provided, comprising:

[0005] The housing has an air inlet.

[0006] A first scroll disk and a second scroll disk are disposed in a housing to form a scroll assembly, and a compression chamber for compressing a medium is defined between the first scroll disk and the second scroll disk.

[0007] A motor, housed within the casing, drives a first scroll plate to rotate along its axis of rotation; the first scroll plate then drives a second scroll plate to rotate.

[0008] A shielding component is positioned between the air intake and the vortex assembly.

[0009] According to an exemplary embodiment of the present invention, the shielding member is at least disposed between the portion of the vortex assembly corresponding to the air inlet and the air inlet.

[0010] According to an exemplary embodiment of the present invention, the shielding member has a wall structure and is disposed outside at least a portion of the outer peripheral surface of the vortex assembly.

[0011] According to an exemplary embodiment of the present invention, the shielding member has a cylindrical wall structure with equal diameter.

[0012] According to an exemplary embodiment of the present invention, the shielding member has a variable diameter cylindrical wall structure, such that the shape of the shielding member conforms to at least a portion of the outer peripheral surface of the vortex assembly.

[0013] According to an exemplary embodiment of the present invention, the shielding member has a semi-cylindrical wall structure and is disposed outside at least a portion of the outer peripheral surface of the vortex assembly corresponding to the air inlet.

[0014] According to an exemplary embodiment of the present invention, the shielding member is made of a metallic material or a non-metallic material.

[0015] According to an exemplary embodiment of the present invention, the compressor further includes a bracket; wherein the shielding member further includes an edge portion, the edge portion having a through hole, and the shielding member is fixed to the bracket through the edge portion.

[0016] According to an exemplary embodiment of the present invention, a notch is provided at the edge.

[0017] According to an exemplary embodiment of the present invention, the motor further includes a stator and a rotor, the stator being in a bracket, and the outer periphery of the stator including a flange edge; wherein fasteners are sequentially passed through through holes in the edge portion and the flange edge to be fastened to the bracket, so as to fix the shielding member and the stator together to the bracket.

[0018] According to an exemplary embodiment of the present invention, a first scroll plate includes a first end plate and a first scroll extending from the first end plate along a first direction; a second scroll plate includes a second end plate and a second scroll extending from the second end plate along a second direction opposite to the first direction, the second scroll and the first scroll cooperating to form a compression chamber; and a support is located on the side of the second scroll plate away from the first scroll plate; wherein the compressor further includes a drive member rotatably mounted on the support and located on the side of the second scroll plate away from the first scroll plate, a motor driving the first scroll plate to rotate via the drive member, and the first scroll plate driving the second scroll plate to rotate.

[0019] According to an exemplary embodiment of the present invention, the first end plate of the first scroll disk further includes an outer edge, the orthographic projection of the shielding member on the first end plate is located on the outer edge, and there is a first gap between the shielding member and the outer edge; wherein, the compressor further includes: a first refrigerant flow path, wherein refrigerant enters the compression chamber from the inlet through the first gap along the first refrigerant flow path; and a second refrigerant flow path, wherein refrigerant enters the compression chamber from the inlet through the second gap along the second refrigerant flow path.

[0020] According to an exemplary embodiment of the present invention, a second gap exists between the housing and the motor; wherein the compressor further includes: a second refrigerant flow path, wherein refrigerant enters the compression chamber from the inlet via the second gap along the second refrigerant flow path.

[0021] According to an exemplary embodiment of the present invention, a hollow channel is formed within the drive member, and a fixed shaft fixed to a bracket is provided in the hollow channel. The fixed shaft has an axial inner hole and a transverse through hole communicating with the axial inner hole. An oiling bolt is disposed in the axial inner hole of the fixed shaft and connected to a second scroll plate. The compressor further includes: a first lubricating oil flow path, in which lubricating oil flows from the oiling bolt through the axial inner hole and the transverse through hole into the space between the lower end of the drive member and the bracket; a second lubricating oil flow path, in which lubricating oil flows from the oiling bolt into the space between the upper end of the drive member and the hub of the second scroll plate to lubricate a sliding bearing located therebetween; and a third lubricating oil flow path, in which lubricating oil flows from the oiling bolt through the edge of the end plate of the second scroll plate and into a compression chamber defined between the first scroll plate and the second scroll plate.

[0022] According to the compressor provided in the embodiments of the present invention, a shielding member is provided between the air inlet and the scroll assembly to prevent liquid refrigerant from directly entering the compression chamber of the scroll assembly, so as to avoid damage to the scroll assembly and thereby improve the reliability of the compressor. Attached Figure Description

[0023] Preferred embodiments of the invention will now be described by way of example with reference to the accompanying drawings, in which:

[0024] Figure 1 This is a schematic cross-sectional view of the compressor according to the present invention.

[0025] Figure 2 yes Figure 1 The diagram shows an exploded view of several components in the compressor.

[0026] Figure 3 This is a perspective view of an embodiment of a cover member in a compressor according to the present invention.

[0027] Figure 4 This is a perspective view of another embodiment of the cover member in the compressor according to the present invention. Detailed Implementation

[0028] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar parts. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation thereof.

[0029] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0030] See Figure 1 and Figure 2 According to an exemplary embodiment of the present invention, a compressor 100 is provided, including: a housing 101, a scroll assembly 10 formed by a first scroll 11 and a second scroll 12, a bracket 4, a drive member 3, and a motor 7, etc. Figure 1 and Figure 2 As shown, the housing 101 has an air inlet 82. A first scroll plate 11 and a second scroll plate 12 are disposed in the housing 101 to form a scroll assembly 10, defining a compression chamber for compressing a medium between the first scroll plate 11 and the second scroll plate 12. The first scroll plate 11 includes a first end plate 112 and a first scroll coil 113 extending from the first end plate 112 along a first direction D1; the second scroll plate 12 includes a second end plate 123 and a second scroll coil 124 extending from the second end plate 123 along a second direction D2 opposite to the first direction D1. The second scroll coil 124 and the first scroll coil 113 cooperate to form a compression chamber. A bracket 4 is located on the side of the second scroll plate 12 away from the first scroll plate 11. A motor 7 is disposed in the housing 101 for driving the first scroll plate 11 to rotate along its axis of rotation. The drive unit 3 is rotatably mounted on the bracket 4 and located on the side of the second scroll plate 12 away from the first scroll plate 11. The motor 7 drives the first scroll plate 11 to rotate around its rotation axis through the drive unit 3, and the first scroll plate 11 drives the second scroll plate 12 to rotate around its rotation axis. The rotation axis of the first scroll plate 11 and the rotation axis of the second scroll plate 12 are not parallel and are offset from each other.

[0031] According to embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the compressor 100 also includes a shielding member 83, which is disposed between the air inlet 82 and the scroll assembly 10. According to an embodiment of the present invention, the shielding member 83 is at least disposed between a portion of the scroll assembly 10 corresponding to the air inlet 82 and the air inlet 82, so as to prevent the gas to be compressed from the air inlet from directly entering the compression chamber of the scroll assembly 10 together with the liquid refrigerant, thereby preventing damage to the scroll assembly.

[0032] See Figures 1 to 4 According to exemplary embodiments of the present invention, specifically, as Figure 1 and Figure 2As shown, the shielding member 83 has a wall structure and is disposed outside at least a portion of the outer peripheral surface of the vortex assembly 10. For example, the shielding member 83 may adopt a thin-walled structure, such as a copper sheet.

[0033] Specifically, such as Figure 2 and Figure 3 In one exemplary embodiment shown, the shielding member 83 may be a cylindrical wall structure with a constant diameter. In other embodiments not shown, the shielding member 83 may also be a cylindrical wall structure with a variable diameter, such that the shape of the shielding member 83 conforms to at least a portion of the outer peripheral surface of the vortex assembly 10, that is, the shape of the shielding member 83 may be adapted to the shape of at least a portion of the outer peripheral surface of the vortex assembly 10.

[0034] Optionally, such as Figure 4 In another exemplary embodiment shown, the shielding member 83 has a semi-cylindrical wall structure and is disposed outside at least a portion of the outer peripheral surface of the vortex assembly 10 corresponding to the air inlet 82.

[0035] According to the present invention, the shielding member 83 is made of a metallic or non-metallic material. In an exemplary embodiment of the present invention, the shielding member 83 is made of a metallic material such as copper.

[0036] like Figure 3 As shown, according to an exemplary embodiment of the present invention, specifically, the blocking member 83 further includes an edge portion 831, the edge portion 831 having a through hole 833, and the blocking member 83 is fixed to the bracket 4 (e.g., ...) through the edge portion 831. Figure 1 and Figure 2 As shown). Figure 4 As shown, according to another exemplary embodiment of the present invention, specifically, the shielding member 83' with a semi-cylindrical wall structure also includes an edge portion 831', the edge portion 831' having a through hole 833', and the shielding member 83' being fixed to the bracket 4 (e.g., ...) through the edge portion 831'. Figure 1 and Figure 2 (As shown). Furthermore, as... Figure 4 As shown, a notch 832' is provided at the edge portion 831', which can be used to avoid the leads of the motor 7, allowing the leads of the motor 7 to be led out from the notch 832'. According to the present invention, by providing a shielding member 83' with a cylindrical or semi-cylindrical wall structure, and providing a notch 832' at the edge portion 831' of the shielding member 83, not only can components such as the scroll assembly and the motor stator be contained, but also by allowing various leads, such as those from the motor 7, to be led out from the notch 832', it is possible to prevent the scroll and drive member 3 from agitating various leads inside the compressor housing during rotation. In addition, fluids such as liquid refrigerant and lubricating oil can also flow through the notch 832'.

[0037] See Figure 1 and Figure 2 According to an exemplary embodiment of the present invention, the motor 70 further includes a stator 72 and a rotor 71. The stator 72 is disposed in the bracket 4. Figure 2 As shown, fasteners (e.g., bolts) 89 pass sequentially through the through holes in the edge portion 831 (e.g. Figure 2 The through hole 833 shown and the flange edge 721 of the stator 72 are fastened to the bracket 4 to fix the shielding member 83 and the stator 72 together to the bracket 4.

[0038] like Figure 1 As shown, according to an exemplary embodiment of the present invention, the first end plate 112 of the first scroll plate 11 further includes an outer edge 111, the orthographic projection of the blocking member 83 on the first end plate 112 is located on the outer edge 111, and a first gap G1 exists between the blocking member 83 and the outer edge 111. A second gap G2 exists between the housing 101 and the motor 7. Specifically, the second gap G2 is located between the upper end of the lower half of the housing 101 and the extension arm of the bracket 4 for supporting the motor 7. According to an exemplary embodiment of the present invention, as Figure 1 As shown, the compressor 100 includes: a first refrigerant flow path (e.g., Figure 1 (As shown by the thin solid curve with arrows in the diagram) F1, the refrigerant flows along the first refrigerant flow path F1 from the inlet 82 through the first gap G1 into the compression chamber defined by the first scroll plate 11 and the second scroll plate 12. The compressor 100 also includes a second refrigerant flow path (as shown by the thin solid curve with arrows in the diagram). Figure 1 (As shown by the thin solid curve with arrows in the diagram) F2, the refrigerant enters the compression chamber defined by the first scroll plate 11 and the second scroll plate 12 through the second gap G2 from the inlet 82 along the second refrigerant flow path F2. That is, the refrigerant enters the housing 101 through the inlet 82, a portion of the refrigerant flows upward along the first refrigerant flow path F1, bypasses the upper end of the shielding member 83, and then flows downward, entering the compression chamber through the fluid channel in the drive member 3. The other portion of the refrigerant flows downward along the second refrigerant flow path F2, enters the motor 7 below the lower end of the shielding member 83 to cool the motor, and then flows upward, entering the compression chamber through the fluid channel 6. The outer edge 111 of the first end plate 112 can prevent the gas in the inlet from continuing to rise and instead enter the compression chamber through G1. At the same time, it can isolate the inlet and the exhaust chamber at the top of the compressor to prevent heat exchange between the intake refrigerant and the high-temperature refrigerant in the exhaust chamber.

[0039] like Figure 1As shown, according to an exemplary embodiment of the present invention, a hollow channel is formed within the driving member 3, and a fixed shaft 5 fixed to the bracket 4 is provided in the hollow channel. The fixed shaft 5 has a transverse through hole 85, and an oiling bolt 81 is disposed in the axial inner hole 58 of the fixed shaft 5 and connected to the second scroll plate 12. According to an exemplary embodiment of the present invention, as Figure 1 As shown, the compressor 100 may include: a first lubricating oil flow path (e.g., Figure 1 As shown by the dashed curve with arrows (R1), lubricating oil flows along the first lubricating oil flow path R1 from the oiling bolt 81 through the axial inner hole 58 and the transverse through hole 85 between the lower end of the drive member 3 and the bracket 4 to lubricate the lower end of the drive member 3 and the bracket 4. Specifically, a portion of the lubricating oil in the oil sump reaches the transverse through hole 85 through the oiling bolt 81 and lubricates the bearing mounted on the inner wall of the lower end of the hub of the drive member 3 through the transverse through hole 85. Under the action of gravity, this portion of lubricating oil flows downward into the recess of the bracket 4 and returns to the oil sump through the oil leakage hole in the recess. In this way, along the first lubricating oil flow path R1, lubricating oil can be provided to the thrust surface located between the bearing and the fixed shaft 5 of the drive member 3, and between the bracket 4 and the fixed shaft 5, through the transverse through hole 85. Figure 1 As shown, the compressor 100 also includes: a second lubricating oil flow path (such as...) Figure 1 As shown by the dashed curve with arrows (R2), lubricating oil flows along the second lubricating oil flow path R2 from the oiling bolt 81 through the gap between the outermost part of the oiling bolt 81 and the inner wall of the crankshaft bore into the space between the upper end of the drive member 3 and the hub of the second scroll plate 12, to lubricate components such as the sliding bearing between the upper end of the drive member 3 and the hub of the second scroll plate 12. Specifically, a portion of the lubricating oil in the oil sump reaches the top of the fixed shaft 5 through the oiling bolt 81, and during its ascent along the oiling bolt 81, this portion of lubricating oil lubricates the sliding bearing located at the top of the fixed shaft 5. More specifically, this portion of lubricating oil lubricates the bearing located between the hub of the second scroll plate 12 and the inner diameter of the slider. Subsequently, a portion of this lubricating oil flows downwards through a straight hole on the side of the fixed shaft 5 back to the oil sump, while another portion flows to the main bearing located outside the hub of the second scroll plate 12 (this main bearing is connected to the drive member 3 on one side and the fixed shaft 5 on the other side) to lubricate the main bearing. It then flows back to the bracket 4 and returns to the oil sump through an oil drain hole in the recess of the bracket 4. During the return flow, this portion of lubricating oil simultaneously lubricates the contact surfaces between the second scroll plate 12 and the drive member 3, as well as the shoulder of the fixed shaft 5 and the thrust surface of the hub inner bore of the drive member 3. Figure 1 As shown, the compressor 100 also includes: a third lubricating oil flow path (such as...) Figure 1As shown by the dashed curve with arrows in the diagram, R3, lubricating oil flows along the third lubricating oil flow path R3 from the oiling bolt 81 through the gap 58 between the outermost part of the oiling bolt 81 and the inner wall of the crankshaft bore into the compression chamber defined between the first scroll plate 11 and the second scroll plate 12.

[0040] As can be seen, the compressor provided according to the embodiments of the present invention, by providing a shielding member between the air inlet and the scroll assembly, prevents liquid refrigerant from directly entering the compression chamber of the scroll assembly, thereby avoiding damage to the scroll assembly. At the same time, the shielding member optimizes the flow path of the refrigerant in the compressor, improves the efficiency of the scroll compressor, and thus improves the performance of the compressor.

[0041] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing any conflict in structure or principle.

[0042] After a detailed description of the embodiments of the present invention, those skilled in the art will clearly understand that various changes and modifications can be made without departing from the scope and spirit of the appended claims, and that the present invention is not limited to the embodiments described in the specification.

Claims

1. A compressor (100), comprising: Housing (101), the housing having an air inlet (82); A first scroll disk (11) and a second scroll disk (12) are disposed in the housing to form a scroll assembly (10), and a compression chamber for compressing a medium is defined between the first scroll disk and the second scroll disk. The motor (7) is disposed in the housing and is used to drive the first scroll disk to rotate along its rotation axis, and the first scroll disk drives the second scroll disk to rotate. and A shielding member (83) is disposed between the air inlet and the vortex assembly; The first scroll plate (11) includes a first end plate and a first scroll extending from the first end plate along a first direction (D1), and the second scroll plate (12) includes a second end plate and a second scroll extending from the second end plate along a second direction (D2) opposite to the first direction. The second scroll and the first scroll cooperate to form the compression cavity. The first end plate of the first scroll disk further includes an outer edge (111), the orthographic projection of the shielding member on the first end plate is located on the outer edge, and there is a first gap (G1) between the shielding member and the outer edge; wherein the compressor further includes a first refrigerant flow path (F1), wherein the refrigerant enters the compression chamber from the air inlet through the first gap along the first refrigerant flow path; The compressor further includes a bracket (4); wherein the shielding member further includes an edge portion (831), the edge portion having a through hole (833), and the shielding member being fixed to the bracket through the edge portion; The motor further includes a stator (72) and a rotor (71), wherein the stator is in the bracket; the outer periphery of the stator includes a flange edge (721); wherein fasteners are sequentially passed through the through holes of the edge portion and the flange edge (721) to be fastened to the bracket, so as to fix the shielding member and the stator together to the bracket.

2. The compressor according to claim 1, wherein, The shielding member is at least disposed between a portion of the vortex assembly corresponding to the air inlet and the air inlet.

3. The compressor according to claim 1, wherein, The shielding member has a wall structure and is disposed outside at least a portion of the outer peripheral surface of the vortex assembly.

4. The compressor according to claim 3, wherein, The shielding component has a cylindrical wall structure with equal diameter.

5. The compressor according to claim 3, wherein, The shielding member has a variable diameter cylindrical wall structure, such that the shape of the shielding member conforms to at least a portion of the outer peripheral surface of the vortex assembly.

6. The compressor according to claim 1, wherein, The shielding member has a semi-cylindrical wall structure and is arranged outside at least a portion of the outer peripheral surface of the vortex assembly corresponding to the air inlet.

7. The compressor according to claim 1, wherein, The shielding component is made of metallic or non-metallic materials.

8. The compressor according to claim 1, wherein, The edge portion has a notch (832, 832').

9. The compressor according to claim 1, wherein, The support (4) is located on the side of the second scroll disk away from the first scroll disk; The compressor further includes a drive unit (3), which is rotatably mounted on the bracket and located on the side of the second scroll disk away from the first scroll disk. The rotor of the motor drives the first scroll disk to rotate through the drive unit, and the first scroll disk drives the second scroll disk to rotate.

10. The compressor according to claim 1, wherein, There is a second gap (G2) between the housing and the motor; The compressor further includes: The second refrigerant flow path (F2) is along which the refrigerant enters the compression chamber from the inlet via the second gap.

11. The compressor according to claim 9, wherein, A hollow channel is formed inside the drive component, and a fixed shaft (5) fixed to the bracket is provided in the hollow channel. The fixed shaft has a transverse through hole (85), and an oiling bolt (81) is provided in the axial inner hole of the fixed shaft and connected to the second scroll plate. The compressor further includes: A first lubricating oil flow path (R1) is provided, along which lubricating oil flows from the oiling bolt through the axial inner hole and the transverse through hole into the space between the lower end of the drive member and the bracket; and / or A second lubricating oil flow path (R2) is provided, along which lubricating oil flows from the oiling bolt between the upper end of the drive member and the hub of the second scroll plate to lubricate the sliding bearing located therebetween; and / or The third lubricating oil flow path (R3) is along which lubricating oil flows from the oiling bolt through the edge of the second end plate of the second scroll plate and into the compression chamber defined between the first scroll plate and the second scroll plate.

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