Scroll compressor and apparatus

Abstract

Provided is a scroll compressor capable of handling operation at higher efficiency and higher compression ratio. In an area of at least one of an end face (11aa) of a scroll tooth side of a fixed scroll end plate (11a) or an end face (12aa) of a scroll tooth side of a revolving scroll end plate that does not serve as a compression chamber, a slope (11aa(s), 12aa(s)) having an angle with the end face (12aa) of the scroll tooth side of the scroll end plate is provided. Thus, contact of burrs generated at a rim portion of a discharge port (14) or a sub-discharge port (14a) with a front end of a scroll tooth is eliminated, the operation of a revolving scroll (12) is stabilized, and a scroll compressor with high efficiency and high reliability can be provided.

Description

Technical Field

[0001] This invention relates to scroll compressors used in refrigeration units such as air conditioners, water heaters, or cold storage facilities, and equipment using such compressors. Background Technology

[0002] Patent Document 1 discloses a scroll compressor used in air conditioners and the like. In this scroll compressor, burrs are generated at the edge formed by the discharge port of the fixed scroll member or the secondary discharge port of the rotating scroll member and the end face of the scroll tooth side of the scroll member end plate. To avoid these burrs, an inclined or slightly stepped section is provided on the front end side of the scroll tooth to prevent damage caused by contact between the front end of the scroll tooth and the burrs generated at the edge, thereby improving the reliability of the compressor.

[0003] However, in this structure, the compressed refrigerant flows backward through the gap between the end faces of the scroll teeth formed at the front end of the scroll teeth and the scroll end plate. Therefore, there is a problem of reduced compression ratio.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent No. 3046486 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] (The knowledge and insights that form the basis of this disclosure, etc.)

[0009] When the inventors conceived of this invention, in a scroll compressor, an inclined or slightly stepped section was provided at the edge of the discharge port of the fixed scroll member or the secondary discharge port of the rotating scroll member to address burrs that may form at the edge. This prevents damage caused by contact between the tip of the scroll teeth and the burrs formed at the edge, thereby improving the reliability of the compressor.

[0010] However, in such a structure, to avoid contact between the tip of the scroll teeth and burrs at all rotation angles of the rotating shaft, the range of inclination or step at the tip of the scroll teeth becomes larger. Therefore, the compressed refrigerant flows counter-currently from the high-pressure side to the low-pressure side through the gap between the inclination or step formed at the tip of the scroll teeth and the scroll tooth surface of the scroll end plate. Consequently, there is a problem of reduced compression ratio or decreased compressor performance.

[0011] The inventors derived the subject of this invention in order to solve this problem.

[0012] The present invention provides a scroll compressor that can avoid burrs generated around the discharge port of the fixed scroll component or the secondary discharge port of the rotating scroll component, and can suppress the reduction of the compressor's compression ratio, enabling it to handle operation at higher efficiency and higher compression ratio.

[0013] Methods for solving problems

[0014] The structure of the scroll compressor of the present invention is that, in a region not used as a compression chamber, an inclined surface having an angle with the end face of the scroll tooth side of the fixed scroll end plate or at least one end face of the scroll tooth side of the rotating scroll end plate is provided.

[0015] Invention Effects

[0016] According to the above structure, the scroll compressor of the present invention can avoid burrs generated around the discharge port of the fixed scroll element or the secondary discharge port of the rotating scroll element, and can suppress the decrease of the compressor's compression ratio. Therefore, it is possible to provide a scroll compressor capable of operating at higher efficiency and higher compression ratios. Attached Figure Description

[0017] Figure 1 This is a longitudinal cross-sectional view of the scroll compressor in Embodiment 1.

[0018] Figure 2 This is an enlarged cross-sectional view showing the main part of the compression mechanism of the scroll compressor.

[0019] Figure 3A This is a graph showing the change in volume of the compression chamber as the scroll compressor of Embodiment 1 rotates.

[0020] Figure 3B This is another diagram showing the change in volume of the compression chamber as the scroll compressor of Embodiment 1 rotates.

[0021] Figure 3C This is another diagram showing the change in volume of the compression chamber as the scroll compressor of Embodiment 1 rotates.

[0022] Figure 3D Another figure showing the change in volume of the compression chamber as the scroll compressor of Embodiment 1 rotates.

[0023] Figure 4A This is a diagram showing the extent of the compression chamber that is not used as a fixed vortex element in Embodiment 1.

[0024] Figure 4B This is a diagram showing the extent of the compression chamber that is not used as a vortex component in Embodiment 1.

[0025] Figure 5A yes Figure 5A This is a diagram showing the range (F) of the inclined surface start portion (S) and the inclined surface start point (E) on the vortex tooth in Embodiment 1.

[0026] Figure 5B It means Figure 5B A cross-sectional view of the inclined plane.

[0027] Figure 6 It is a diagram showing the rotational trajectory of the endpoint (G) of the arc of the inner wall of the vortex tooth and the endpoint (H) of the involute curve of the outer wall of the vortex tooth in Embodiment 1. Detailed Implementation

[0028] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, sometimes unnecessary detailed descriptions will be omitted. For example, there may be omissions of detailed descriptions of matters that are already known, or repetitions of descriptions of substantially the same structures. This is to avoid the following description becoming excessively lengthy and to facilitate understanding by those skilled in the art.

[0029] Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the invention, and are not intended to limit the subject matter described in the claims.

[0030] (Implementation Method 1)

[0031] The following uses Figures 1-6 Description of Implementation Method 1.

[0032] [1-1. Structure]

[0033] like Figure 1 As shown, the scroll compressor 100 is configured by a compression mechanism 10 for compressing refrigerant disposed in a sealed container 1 and an electric mechanism 20 for driving the compression mechanism 10.

[0034] The sealed container 1 consists of a main body 1a, a lower cover 1b, and an upper cover 1c. The main body 1a is formed into a cylindrical shape extending vertically. The lower cover 1b closes the lower opening of the main body 1a. The upper cover 1c closes the upper opening of the main body 1a. The sealed container has an oil reservoir 4 at the bottom for storing lubricating oil.

[0035] The sealed container 1 is provided with a refrigerant suction pipe 2 for introducing refrigerant into the compression mechanism section 10 and a refrigerant discharge pipe 3 for discharging the refrigerant compressed in the compression mechanism section 10 to the outside of the sealed container 1.

[0036] The compression mechanism 10 has a fixed scroll member 11, a rotating scroll member 12, and a rotating shaft 13 that drives the rotating scroll member 12 to rotate.

[0037] The electric mechanism 20 has a stator 21 fixed to the sealed container 1 and a rotor 22 disposed inside the stator 21. The aforementioned rotating shaft 13 is fixed to the rotor 22.

[0038] An eccentric shaft 13a is formed at the upper end of the rotating shaft 13, which is eccentric to the rotating shaft 13. The distance between the center line of the rotating shaft 13 and the center line of the eccentric shaft 13a is the radius of gyration ε. An oil groove is formed in the eccentric shaft 13a through a recess 13f that opens at the top of the eccentric shaft 13a.

[0039] A main bearing 30 supporting the fixed scroll member 11 and the rotating scroll member 12 is provided below them.

[0040] The main bearing 30 has a bearing portion 31 that supports the rotating shaft 13 and a boss housing portion 32. The outer periphery of the main bearing 30 is fixed to the sealed container 1 by welding or embedding.

[0041] exist Figure 2 The compression mechanism is shown in enlarged view. The fixed scroll member 11 includes: a circular plate-shaped fixed scroll member end plate 11a; scroll-shaped fixed scroll teeth 11b erected vertically from the fixed scroll member end plate 11a; and an outer peripheral wall portion 11c erected to surround the fixed scroll teeth 11b. An outlet 14 is formed approximately at the center of the fixed scroll member end plate 11a.

[0042] The swirling scroll member 12 has: a circular plate-shaped swirling scroll member end plate 12a; swirling scroll teeth 12b erected from one side (scirling tooth side end face) of the swirling scroll member end plate 12a; and a cylindrical boss portion 12c formed on the other side (opposite side end face of the scroll teeth) of the swirling scroll member end plate 12a. The other side of the swirling scroll member end plate 12a is the end face 12aa of the swirling scroll member end plate 12a (see reference). Figure 5A The opposite side. A secondary outlet 14a is formed approximately at the center of the end plate 12a of the vortex component.

[0043] The swivel bearing 13d is fitted into the cylindrical boss portion 12c. The scroll tooth side of the swivel bearing 13d is closed by the swivel end plate 12a, while the opposite side of the scroll tooth is open. The eccentric shaft 13a of the rotating shaft 13 is inserted from the open side of the swivel bearing 13d.

[0044] The fixed vortex teeth 11b of the fixed vortex component 11 mesh with the rotating vortex teeth 12b of the rotating vortex component 12, forming a plurality of compression chambers 15 between the fixed vortex teeth 11b and the rotating vortex teeth 12b.

[0045] The boss portion 12c is formed approximately at the center of the end plate 12a of the vortex member. Moreover, the boss portion 12c is housed in the boss housing portion 32 when the eccentric shaft 13a is inserted into the boss portion 12c.

[0046] The fixed scroll member 11 is fixed to the main bearing 30 at its outer peripheral wall 11c using multiple bolts (not shown). On the other hand, the rotating scroll member 12 is restricted from moving relative to the fixed scroll member 11 by a rotation-limiting member 17, such as an Oldham ring. The rotation-limiting member 17, which restricts the rotation of the rotating scroll member 12, is provided between the fixed scroll member 11 and the main bearing 30. Thus, the rotating scroll member 12 rotates with the crankshaft 13a of the rotating shaft 13, and rotates without rotating relative to the fixed scroll member 11.

[0047] like Figure 1 As shown, the lower end 13b of the rotating shaft 13 is supported by a secondary bearing 18 located at the bottom of the sealed container 1, and a positive displacement oil pump 5 is installed at its lower end. The oil pump 5 is arranged such that its suction port is located within the oil reservoir 4. The oil pump 5 is driven by the rotating shaft 13 and reliably draws up the lubricating oil present in the oil reservoir 4 located at the bottom of the sealed container 1, regardless of pressure conditions and operating speed, thus eliminating concerns about oil depletion.

[0048] A rotary shaft oil supply hole 13c is formed on the rotary shaft 13. The rotary shaft oil supply hole 13c extends from the lower end 13b of the rotary shaft 13 to the eccentric shaft 13a. The lubricating oil drawn up by the oil pump 5 is supplied to the bearing, bearing portion 31, and boss portion 12c of the auxiliary bearing 18 through the rotary shaft oil supply hole 13c formed in the rotary shaft 13.

[0049] Refrigerant drawn in through refrigerant suction pipe 2 is introduced into compression chamber 15 through suction port 15a. Compression chamber 15 moves from the outer periphery towards the center while compressing the refrigerant. Refrigerant that has reached a predetermined pressure in compression chamber 15 is discharged into discharge chamber 6 through discharge port 14 located at the center of fixed scroll member 11. Discharge reed valve (not shown) is provided at discharge port 14. Refrigerant that has reached a predetermined pressure in compression chamber 15 pushes open discharge reed valve, thereby discharging refrigerant into discharge chamber 6. The refrigerant discharged into discharge chamber 6 is directed to the upper part of the sealed container 1 and discharged through refrigerant discharge pipe 3.

[0050] In the device of this embodiment, the scroll compressor 100, condenser 42, pressure reducing device 43, and evaporator 44 are connected in a ring shape by piping. The refrigerant discharged from the refrigerant discharge pipe 3 is condensed in the condenser 42, the pressure reducing device 43 reduces the pressure of the refrigerant condensed in the condenser 42, and the pressure reducing device 43 evaporates the refrigerant that has been depressurized in the pressure reducing device 43.

[0051] The refrigerant evaporated in evaporator 44 returns to scroll compressor 100 from refrigerant suction pipe 2.

[0052] The scroll compressor 100 of this embodiment is as follows: Figure 2 As shown in the enlarged cross-sectional view of the main part, the boss housing 32 is formed as a high-pressure region A, and the outer periphery of the gyratory scroll member 12, which is equipped with the rotation limiting member 17, is formed as an intermediate pressure region B. The gyratory scroll member 12 is pressed against the fixed scroll member 11. The results will be explained below.

[0053] The eccentric shaft 13a is inserted into the boss portion 12c via a swivel bearing 13d. An oil groove 13e is formed on the outer peripheral surface of the eccentric shaft 13a.

[0054] An annular sealing member 33 is provided on the thrust surface of the main bearing 30, which bears the thrust from the end plate 12a of the vortex component. The sealing member 33 is disposed on the outer periphery of the boss housing portion 32.

[0055] The sealed container 1 is filled with refrigerant at the same high pressure as the refrigerant discharged into the discharge chamber 6. The oil supply port 13c of the rotating shaft opens at the upper end of the eccentric shaft 13a. Therefore, the interior of the boss portion 12c is a high-pressure region A with the discharged refrigerant.

[0056] Lubricating oil is introduced into the boss portion 12c through the oil supply hole 13c of the rotating shaft. Then, the lubricating oil is supplied to the slewing bearing 13d and the boss housing portion 32 via the oil groove 13e formed on the outer peripheral surface of the eccentric shaft 13a. Because a sealing member 33 is provided on the outer periphery of the boss housing portion 32, the interior of the boss housing portion 32 becomes a high-pressure area A.

[0057] A first oil inlet hole 51, a first oil outlet hole 52, and a first end plate oil connecting passage 53 are provided on the end plate 12a of the vortex component. The first oil inlet hole 51 is formed facing into the boss portion 12c. The first oil outlet hole 52 opens on the outer periphery of the end face on the vortex tooth side. The first end plate oil connecting passage 53 connects the first oil inlet hole 51 and the first oil outlet hole 52.

[0058] A second oil inlet hole 61, a second oil outlet hole 62, and a second end plate oil connecting passage 63 are provided on the end plate 12a of the gyratory scroll member. The second oil inlet hole 61 opens in the intermediate pressure region B of the outer periphery of the gyratory scroll member 12. The second oil outlet hole 62 opens in the compression chamber 15. The second end plate oil connecting passage 63 connects the second oil inlet hole 61 and the second oil outlet hole 62. Thus, in this embodiment, the second oil inlet hole 61 opens on the upper surface of the end plate 12a of the gyratory scroll member via the second end plate oil connecting passage 63.

[0059] Based on this structure, the intermediate pressure region B is intermittently connected to the compression chamber 15 through the second oil outlet 62 of the swirling scroll member 12. Thus, the intermediate pressure of the compression chamber 15 is guided to the intermediate pressure region B, allowing the swirling scroll member 12 to be pressed against the fixed scroll member 11 with the minimum required load, even under various operating conditions. This reduces frictional losses in the compressor and prevents the swirling scroll member 12 from separating from the fixed scroll member 11. Therefore, the airtightness of the compression chamber 15 can be improved.

[0060] In this embodiment, the structure in which the swirling scroll member 12 is pressed onto the fixed scroll member 11 has been described. However, it is also possible to have the intermediate pressing region B disposed on the back side of the fixed scroll member, and to press the fixed scroll member 11 onto the swirling scroll member 12.

[0061] Figures 3A to 3D This diagram shows the volume change of the compression chamber accompanying the swirling motion in the scroll compressor of this embodiment. It is a diagram showing the state in which the swirling scroll 12 is engaged with the fixed scroll 11 from the back of the scroll 12. Figure 3B Indicates from Figure 3A The state after a 90-degree rotation Figure 3C Indicates from Figure 3B It was further rotated 90 degrees. Figure 3D Indicates from Figure 3C It was further rotated 90 degrees.

[0062] Multiple compression chambers 15 are formed by a fixed scroll member 11 and a rotating scroll member 12. For example... Figure 3A As shown, a first compression chamber 15A is formed on the outer wall side of the vortex gear 12b, as... Figure 3C As shown, a second compression chamber 15B is formed on the inner wall side of the vortex gear 12b.

[0063] With the fixed scroll member 11 and the rotating scroll member 12 engaged, the outer peripheral end 11be of the fixed scroll tooth 11b and the outer peripheral end 12be of the rotating scroll tooth 12b are positioned at the same location, and the outer peripheral end 11be of the fixed scroll tooth 11b is extended. As a result, the position of the sealed refrigerant in the first compression chamber 15A and the position of the sealed refrigerant in the second compression chamber 15B are offset by approximately 180 degrees. The first compression chamber 15A is configured such that its suction volume is larger than that of the second compression chamber 15B.

[0064] Here, in the scroll compressor 100 of this embodiment, an inclined surface is provided on at least one end face of the scroll tooth side of the fixed scroll end plate 11aa or the scroll tooth side of the rotating scroll end plate 12aa, within the range of the end face of the scroll tooth side of the scroll end plate not used as the compression chamber 15. The inclined surface has an angle relative to the end face of the scroll tooth side of the scroll end plate in the direction in which the anti-scroll teeth are vertically arranged.

[0065] The area not used as compression chamber 15 refers to the area within the fixed scroll member 11, such as... Figure 4A As shown, the outer wall of the spiral vortex tooth 12b(1) in the rotation angle before the first compression chamber 15A connects with the discharge area; the inner wall of the spiral vortex tooth 12b(2) in the rotation angle before the second compression chamber 15B connects with the discharge area; the inner wall of the spiral vortex tooth 11b; the area (part C) surrounded by a curve or straight line connecting the involute ends of the fixed spiral teeth to each other. In a spiral vortex component, such as Figure 4B As shown, in the relative positional relationship between the fixed vortex tooth and the rotary vortex tooth, the outer wall of the fixed vortex tooth 11b(2) in the rotation angle connecting the first compression chamber 15A and the discharge area; the inner wall of the fixed vortex tooth 11b(1) in the rotation angle connecting the first compression chamber 15A and the discharge area; the inner wall of the rotary vortex tooth 12b; and the area (part D) surrounded by the curve or straight line connecting the involute ends of the rotary vortex teeth, or by a combination of curves and straight lines. Relative to Figure 5A , Figure 5B At least a portion of the starting point of the inclined surface of the fixed scroll end plate 11aa, which is angled to the end face 11aa of the scroll tooth side of the fixed scroll end plate 11a, and the starting point of the inclined surface of the rotating scroll end plate 12aa(s), which is angled to the end face 12aa of the scroll tooth side of the rotating scroll end plate 12a, exist within the range of part C or part D. Furthermore, the inclined surface is formed by the trajectory of the tool used to machine the scroll teeth.

[0066] like Figure 5A As shown, the inclined surface beginning portion (S) is a shape formed by two arcs connecting to the volute teeth. The edge line (P) is formed on the end face of the volute teeth side of the outlet 14 or sub-outlet 14 (b) and the volute end plate. The inclined surface beginning point (E) on the volute teeth of the inclined surface exists within a range (F) that causes the edge line (P) to be offset outwards by a radius of rotation ε.

[0067] In addition, in this embodiment, the angle between the inclined surface and the end face of the vortex tooth side of the end plate of the vortex component is 2° to 20° on the cross section in the travel direction of the machining tool.

[0068] In addition, in this embodiment, such as Figure 6As shown, the endpoints (G) of the arc on the inner wall of the vortex tooth and the endpoints (H) of the involute curve on the outer wall of the vortex tooth are set such that they converge to the side of the starting part (S) of the inclined plane near the outlet 14 or the secondary outlet 14a in all rotation angles of the rotation axis.

[0069] In addition, in this embodiment, at least one of the fixed vortex member 11 and the swirling vortex member 12 is made of a material whose base material is mainly composed of light metals.

[0070] [1-2. Actions]

[0071] In the scroll compressor 100 constructed in the above manner, the fixed scroll member 11 and the rotary scroll member 12 are provided with inclined surfaces (11aa(s), 12aa(s)) at an angle relative to the end face of the scroll tooth side of the scroll member end plate, which is not used as the compression chamber 15. As a result, the compression operation is performed without the front end of the scroll tooth contacting the burrs present on the edge portion around the discharge port 14 of the fixed scroll member 11 or the secondary discharge port 14a of the rotary scroll member 12.

[0072] [1-3. Effects, etc.]

[0073] As described above, the scroll compressor of this embodiment includes: a compression mechanism 10 for compressing refrigerant; an electric mechanism 20 for driving the compression mechanism 10; and a sealed container 1 for housing the compression mechanism 10 and the electric mechanism 20. The compression mechanism 10 includes a fixed scroll member 11, a rotating scroll member 12, and a rotating shaft 13 for driving the rotating scroll member 12 to rotate. The fixed scroll member 11 includes: a circular plate-shaped fixed scroll member end plate 11a; and fixed scroll teeth 11b erected on the fixed scroll member end plate 11a. The rotating scroll member 12 includes a circular plate-shaped rotating scroll member end plate 12a and rotating scroll teeth 12b erected on the end face 12aa of the rotating scroll member end plate 12a on the scroll tooth side. The fixed scroll teeth 11b and the rotating scroll teeth 12b mesh with each other, forming a plurality of compression chambers 15 between the fixed scroll teeth 11b and the rotating scroll teeth 12b. Compression chamber 15 has a first compression chamber 15A formed on the outer wall side of the swirling vortex teeth 12b, and a second compression chamber 15B formed on the inner wall side of the swirling vortex teeth 12b. The swirling vortex member 12 is pressed against the fixed vortex member 11 by the back pressure formed on the opposite side of the vortex teeth of the swirling vortex member end plate 12a. The vortex tooth side of the swirling bearing 13d of the swirling vortex member 12 is closed by the swirling vortex member end plate 12a, while the eccentric shaft 13a side of the rotating shaft 13 is open.

[0074] The scroll compressor 100 has at least one end face 11aa on the scroll tooth side of the fixed scroll end plate 11a or the end face 12aa on the scroll tooth side of the gyratory scroll end plate 12a. Figure 4A , Figure 4BWithin the region (section C) or (section D) of the compression chamber 15 shown, a structure is provided relative to... Figure 5A , Figure 5B The end face of the volute end plate shown has angled bevels 11aa(s) and 12aa(s).

[0075] According to this method, such as Figure 5B As shown, this avoids contact between burrs generated at the edge of the discharge port 14, which is located approximately at the center of the fixed scroll member 11, or at the edge of the secondary discharge port 14a, which is located approximately at the center of the rotary scroll member 12, and the front end of the opposing scroll teeth. Therefore, the rotary scroll member 12 operates stably, resulting in a scroll compressor with higher efficiency and higher reliability.

[0076] In this embodiment, the inclined surfaces 11aa(s) and 12aa(s) are formed by the trajectory of the tool used to machine the side of the spiral tooth.

[0077] Therefore, while machining the vortex tooth surface, the inclined surfaces 11aa(s) and 12aa(s) can be made by using the axial offset of the tool, so the manufacturing process is easy and the cost can be controlled.

[0078] Furthermore, in this embodiment, the inclined surfaces 11aa(s) and 12aa(s) on the end faces 11aa or 12aa of the scroll end plates 11a or 12aa are formed by connecting two circular arcs that connect with the scroll teeth. The radius of the circular arcs is the radius of the machining tool. Additionally, the inclined surface starting point (E) on the scroll teeth of the inclined surfaces 11aa(s) and 12aa(s) exists within a range (F) that causes the edge line (P) to shift outwards by an amount equivalent to the radius of rotation ε. The edge line (P) is formed by the discharge port 14 or the sub-discharge port 14a, and the end faces 11aa and 12aa on the scroll tooth side of the scroll end plates 11a and 12aa.

[0079] Therefore, to avoid burrs, no gaps are generated in the compression chamber 15 compared to the case where an inclination or a small step is set at the front end of the scroll teeth. As a result, a more efficient compressor can be formed.

[0080] In this embodiment, the angle between the inclined surfaces 11aa(s) and 12aa(s) and the end faces 11aa and 12aa of the scroll teeth side of the end plates 11a and 12a is 2° to 20° in the cross section of the traveling direction of the machining tool.

[0081] Therefore, it is possible to suppress the generation of burrs on the end face 11aa or 12aa of the scroll tooth side of the scroll member end plate 11aa or 12aa during the machining of the inclined surfaces 11aa(s) and 12aa(s). As a result, a compressor 15 with high reliability can be formed.

[0082] Furthermore, in this embodiment, the endpoint (H) of the beginning of the involute of the outer wall of the vortex tooth and the endpoint (G) of the arc of the inner wall of the vortex tooth are configured such that, in all rotation angles of the rotation axis 13, they are located in the range closer to the outlet 14 or the secondary outlet 14a than the starting portion (S) of the inclined surface.

[0083] Therefore, the upper end face (T part) of the scroll tooth, whose deformation is greatest due to temperature or pressure, and the end face of the scroll tooth side of the opposite scroll end plate will not slide through point contact, thus forming a compressor with high reliability.

[0084] Furthermore, in this embodiment, the base material of at least one of the fixed or rotating scroll components is made of a light metal with a specific gravity of 5 or less. Light metals, being soft materials, are prone to producing large burrs during processing. Additionally, the deformation of portions (H) and (G) is relatively large due to the influence of temperature and pressure. Therefore, the central portion of the scroll tooth tip easily interferes with the end face of the scroll tooth side of the scroll component end plate, and the burrs generated on the end face of the scroll tooth side of the scroll component end plate are likely a major cause of significantly reduced reliability.

[0085] If this implementation method is adopted, these problems can be solved, and a lightweight and highly reliable compressor can be provided.

[0086] The present invention has been described above using the above embodiments. The above embodiments are examples used to illustrate the technology of the present invention, so various changes, substitutions, additions or omissions can be made within the scope of the claims or their equivalents.

[0087] Industrial availability

[0088] The scroll compressor in this invention can achieve high efficiency, so it can be used in equipment such as air conditioners, dehumidifiers, heat pump water heaters, hot water heating devices, cold storage (household cold storage, commercial cold storage), ice makers, display cabinets, heat pump washer-dryers, and vending machines.

[0089] Explanation of reference numerals in the attached figures

[0090] 1. Sealed container

[0091] 1a Main Cadre

[0092] 1b Lower cover

[0093] 1c top cover

[0094] 2 Refrigerant suction pipe

[0095] 3 Refrigerant discharge pipe

[0096] 4. Oil storage section

[0097] 5 oil pumps

[0098] 6. Exhaust chamber

[0099] 10. Compression Mechanism Department

[0100] 11 Fixed scroll component

[0101] 11a Fixed scroll end plate

[0102] 11aa End face of the scroll tooth side of the fixed scroll component end plate

[0103] 11aa(s) Fixed scroll end plate slope

[0104] 11b Fixed vortex teeth

[0105] 11b(1) Fixed vortex teeth in the rotation angle before the first compression chamber connects with the discharge area

[0106] 11b(2) Fixed vortex teeth in the rotation angle before the second compression chamber connects with the discharge area

[0107] 11be outer peripheral end

[0108] 11c Peripheral wall portion

[0109] 12 gyratory scroll components

[0110] 12a Rotary scroll end plate

[0111] 12aa End face of the scroll tooth side of the end plate of the vortex component

[0112] 12aa(s) Sloping end plate of the vortex component

[0113] 12b Cycloidal Vortex

[0114] 12b(1) The vortex gear in the rotation angle before the first compression chamber connects with the discharge area

[0115] 12b(2) The vortex gear in the rotation angle before the second compression chamber connects with the discharge area

[0116] 12be outer peripheral end

[0117] 12c Boss section

[0118] 13 Rotation axis

[0119] 13a Eccentric Shaft

[0120] 13b Lower end

[0121] 13c Rotary shaft oil supply hole

[0122] 13d swivel bearing

[0123] 13e oil tank

[0124] 13f concave part

[0125] 14 Discharge outlets

[0126] 14a Secondary Discharge Outlet

[0127] 15 Compression Chamber

[0128] 15A First Compression Chamber

[0129] 15B Second Compression Chamber

[0130] 15a Inlet

[0131] 17 Rotation limiting components

[0132] 18 sets of bearings

[0133] 20 Electric Mechanism Department

[0134] 21 Stator

[0135] 22 Rotors

[0136] 30 main bearing

[0137] 31 Bearing section

[0138] 32. Surface storage unit

[0139] 33 Sealing components

[0140] 42 Condenser

[0141] 43 Pressure reducing device

[0142] 44 Evaporator

[0143] 51 First oil inlet hole

[0144] 52 First oil outlet hole

[0145] 53 First end plate oil connection circuit

[0146] 61. Second oil inlet hole

[0147] 62 Second oil outlet hole

[0148] 63. Second end plate oil connection circuit

[0149] 100 Scroll compressor.

Claims

1. A scroll compressor, characterized in that, include: The compression mechanism for compressing refrigerant; The electric mechanism that drives the compression mechanism; and A sealed container for housing the compression mechanism and the electric mechanism. The compression mechanism includes a fixed scroll member, a rotary scroll member, and a rotating shaft that drives the rotary scroll member to rotate. The fixed scroll component includes: a circular plate-shaped fixed scroll component end plate and fixed scroll teeth vertically disposed on the fixed scroll component end plate. The swirling vortex component includes: a circular plate-shaped swirling vortex component end plate and swirling vortex teeth vertically disposed on the end face of the vortex tooth side of the swirling vortex component end plate. The fixed vortex teeth and the rotary vortex teeth mesh with each other, forming multiple compression chambers between them. In a region not used as the compression chamber, an inclined surface is formed in at least one of the end faces of the fixed scroll end plate (scroll tooth side) and the swirling scroll end plate (scroll tooth side), with an angle relative to the end face of either the fixed scroll end plate or the swirling scroll end plate. The inclined surface starting portion (S) of the inclined surface is formed by two circular arcs connected to the vortex tooth, and the inclined surface starting point of the inclined surface on the vortex tooth exists within a range of the radius of rotation that is offset outward from the edge line formed by the end face of the outlet or sub-outlet of the compression chamber opening and the vortex tooth side of the fixed vortex end plate or the vortex end plate.

2. The scroll compressor as described in claim 1, characterized in that: The inclined surface is formed by the trajectory of the tool used to machine the spiral teeth.

3. The scroll compressor as described in claim 1, characterized in that: The angle between the inclined plane and the end face of the fixed scroll end plate or the scroll tooth side of the rotary scroll end plate is 2° to 20° in the cross section of the traveling direction of the machining tool.

4. A scroll compressor, characterized in that, include: The compression mechanism for compressing refrigerant; The electric mechanism that drives the compression mechanism; and A sealed container for housing the compression mechanism and the electric mechanism. The compression mechanism includes a fixed scroll member, a rotary scroll member, and a rotating shaft that drives the rotary scroll member to rotate. The fixed scroll component includes: a circular plate-shaped fixed scroll component end plate and fixed scroll teeth vertically disposed on the fixed scroll component end plate. The swirling vortex component includes: a circular plate-shaped swirling vortex component end plate and swirling vortex teeth vertically disposed on the end face of the vortex tooth side of the swirling vortex component end plate. The fixed vortex teeth and the rotary vortex teeth mesh with each other, forming multiple compression chambers between them. In a region not used as the compression chamber, an inclined surface is formed in at least one of the end faces of the fixed scroll end plate (scroll tooth side) and the swirling scroll end plate (scroll tooth side), with an angle relative to the end face of either the fixed scroll end plate or the swirling scroll end plate. The endpoint (H) of the involute winding of the outer wall of the vortex tooth and the endpoint (G) of the arc of the inner wall of the vortex tooth are configured to converge within the range of the starting part (S) of the inclined plane near the outlet or secondary outlet in all rotation angles of the rotation axis.

5. The scroll compressor as described in any one of claims 1 to 4, characterized in that: The base material of at least one of the fixed scroll end plate or the swirling scroll end plate is made of a light metal with a specific gravity of less than 5.

6. A device, characterized in that: The scroll compressor, condenser, pressure reducing device, and evaporator according to any one of claims 1 to 5 are connected in a ring shape by piping.

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