Static scroll plate, compressor and refrigeration equipment

Abstract

The invention provides a static vortex plate, a compressor and refrigeration equipment, the static vortex plate comprises a plate body, the plate body is provided with an air suction port, and the air suction port is used for communicating with the outside; the static vortex teeth are arranged on one side of the disc body, an air suction channel is formed by the static vortex teeth and the disc body, the air suction channel is communicated with the air suction port and comprises a first air suction section and a second air suction section which are connected, and the first air suction section is closer to the air suction port than the second air suction section; in the radial direction of the disc body, the width of the first air suction section is larger than that of the second air suction section.

Description

Technical Field

[0001] The present invention relates to the technical field of static scroll disks, and in particular to a static scroll disk, a compressor and a refrigeration device. Background Art

[0002] Scroll compressors are widely used in air conditioning and heat pump systems due to their high efficiency, small size, light weight and stable operation. In scroll compressors, the moving and stationary scrolls are the core components of the scroll compressor. The meshing of the profiles on the moving scroll and the stationary scroll forms a series of crescent-shaped compression chambers. With the eccentric revolution of the moving scroll, the crescent-shaped compression chambers continuously move from the periphery to the center. As a result, the refrigerant in the chamber is pushed toward the center, and its volume continues to decrease and the pressure continues to increase until it is connected to the central exhaust hole. The refrigerant becomes high-pressure gas and is discharged from the compression chamber, completing the compression process.

[0003] At present, with the market demand for large displacement and high speed, the maximum operating frequency of scroll compressors is getting higher and higher. However, under high speed conditions, the centrifugal force of the moving scroll increases sharply, and the tail of the moving scroll is deformed and centrifugal, causing the contact stress with the side wall of the static scroll to increase sharply, and the scroll is prone to breakage in extreme cases. Summary of the invention

[0004] The embodiments of the present invention are intended to solve at least one of the technical problems existing in the prior art.

[0005] To this end, a first aspect of an embodiment of the present invention provides a stationary scroll.

[0006] A second aspect of an embodiment of the present invention provides a compressor.

[0007] A third aspect of the embodiments of the present invention provides a refrigeration device.

[0008] In view of this, according to a first aspect of an embodiment of the present invention, a static vortex disk is provided, the static vortex disk comprising: a disk body, the disk body being provided with an air intake port, the air intake port being used to communicate with the outside; a static vortex tooth, which is arranged on one side of the disk body and forms an air intake channel with the disk body, the air intake channel being connected with the air intake port, the air intake channel comprising a first air intake section and a second air intake section which are connected, the first air intake section being arranged closer to the air intake port than the second air intake section; wherein, along the radial direction of the disk body, the width of the first air intake section is greater than the width of the second air intake section.

[0009] The static scroll provided in the embodiment of the present invention includes a disk body and a static scroll tooth. Specifically, the static scroll tooth is arranged on one side of the disk body, and the static scroll tooth and the disk body form an air suction channel, which is connected to the air suction port on the disk body.

[0010] In addition, the compressor also includes a movable scroll, the movable scroll of which is inserted into the suction channel and cooperates with the fixed scroll to form a plurality of crescent-shaped compression chambers, the compression chambers are connected to the suction port, and the suction port is connected to the suction pipe of the compressor. Specifically, the refrigerant enters the suction port through the suction pipe and enters the compression chamber through the suction port. During the rotation of the movable scroll relative to the fixed scroll, the compression chamber continuously moves from the periphery to the center, and the volume continuously decreases, so that the refrigerant pressure in the compression chamber continuously increases. Finally, the compressed high-pressure refrigerant is discharged from the compression chamber through the exhaust port on the disc body, completing the process of the refrigerant from suction, compression to exhaust.

[0011] It can be understood that under high-speed conditions, the centrifugal force of the movable scroll increases sharply, and the tail of the movable scroll tooth of the movable scroll is a cantilever beam structure, that is, the end of the movable scroll tooth close to the suction port is a cantilever beam structure. When the movable scroll rotates relative to the fixed scroll, the tail of the movable scroll tooth is deformed and subjected to the action of centrifugal force, so that the contact stress between the tail of the movable scroll tooth and the channel wall of the suction channel increases sharply, causing the movable scroll to be prone to breakage under extreme conditions.

[0012] Moreover, during the operation of the compressor, there is stress concentration at the connection between the tail of the movable scroll and the end plate of the movable scroll. When the compressor is running at high speed, if the stress at the connection between the tail of the movable scroll and the end plate exceeds the fatigue strength of the movable scroll, fracture may also occur.

[0013] The intake passage includes a first intake section and a second intake section. Specifically, the first intake section is connected to the second intake section, and the first intake section is arranged close to the intake port. That is to say, when the movable scroll and the fixed scroll cooperate to form a compression chamber, at least a portion of the cantilever end of the movable scroll tooth is located in the first intake section.

[0014] Along the radial direction of the disk body, the width of the first suction section is greater than that of the second suction section. That is to say, the width of the first suction section that cooperates with the cantilever end of the movable scroll is increased, so that in the process of the movable scroll disk rotating relative to the fixed scroll disk, a certain gap is formed between at least a part of the cantilever end and the channel wall of the first suction section, thereby effectively improving the stress condition of the cantilever end of the movable scroll disk under high speed of the compressor, significantly reducing the contact stress between the cantilever end of the movable scroll disk and the channel wall of the first suction section, and avoiding the fracture of the cantilever end of the movable scroll disk caused by stress concentration, thereby improving the strength of the movable scroll disk, extending the service life of the fixed scroll disk, the movable scroll disk and the compressor having the fixed scroll disk, and improving the stability and reliability of the compressor when running at high speed, thereby meeting the demand for high speed operation of the compressor.

[0015] Among them, it can meet the high speed operation requirements of the compressor 140rps and above.

[0016] In addition, by increasing the radial width of the first suction section that cooperates with the cantilever end of the movable scroll, the strength of the movable scroll that cooperates with the fixed scroll is improved. Compared with the related technology of manufacturing the movable scroll with high-strength materials, the processing difficulty of the fixed scroll and the movable scroll can be reduced, thereby reducing the processing cost of the compressor and being suitable for large-scale production.

[0017] In addition, the static vortex provided by the above technical solution of the present invention also has the following additional technical features:

[0018] In some embodiments, optionally, along the radial direction of the disc body, the width d1 of the first suction section and the width d2 of the second suction section satisfy 0.01 mm ≤ d1 - d2 ≤ 0.2 mm.

[0019] In this embodiment, a value range of the difference between the width of the first suction section and the width of the second suction section along the radial direction of the disk body is defined.

[0020] It can be understood that, in the process of the movable scroll rotating relative to the fixed scroll, the cantilever end of the movable scroll tooth is in contact with both opposite channel walls of the first suction section, and the radial width of the first suction section can be increased by making one side channel wall of the first suction section concave radially inward or outward, or making one side channel wall of the first suction section concave radially inward and the other side channel wall concave radially outward. The specific configuration can be made according to actual needs.

[0021] By limiting the range of the difference between the width of the first suction section and the width of the second suction section, that is, limiting the width of the gap formed when the cantilever end of the movable volute cooperates with the channel wall of the first suction section, the stress condition of the cantilever end of the movable volute can be improved when the compressor is running at a high speed, and the contact stress between the cantilever end of the movable volute and the channel wall of the first suction section can be significantly reduced. The cantilever end of the movable volute can also be prevented from being fractured due to stress concentration, and the strength of the movable volute can be improved while avoiding the problem of leakage caused by the gap formed between the cantilever end of the movable volute and the channel wall of the first suction section being too large, thereby further ensuring the stable operation of the compressor.

[0022] In some embodiments, optionally, along the radial direction of the disk body, the static vortex tooth includes a first side wall and a second side wall that are oppositely arranged, the first side wall is located radially outside the second side wall, and the first side wall and the second side wall form an air intake channel; the first side wall extends along a first spiral line; and / or the second side wall extends along a second spiral line.

[0023] In this embodiment, along the radial direction of the disc body, the static volute includes a first side wall and a second side wall, and the first side wall is arranged opposite to the second side wall, and the first side wall and the second side wall form an air suction passage. The first side wall is located radially outside the second side wall, that is, the first side wall is the inner side wall of the air suction passage, and the second side wall is the outer side wall of the air suction passage. Specifically, the first side wall can be composed of a circular involute or an algebraic spiral line, and the second side wall can be composed of a circular involute or an algebraic spiral line.

[0024] It is understandable that if the first side wall and the second side wall are formed by circular involutes, the base circle radii of the first side wall and the second side wall are different. If the first side wall and the second side wall are formed by algebraic spiral lines, the eccentric radii of the first side wall and the second side wall are different. The specific setting can be made according to actual needs.

[0025] Optionally, the first side wall extends along the first spiral line. Alternatively, the second side wall extends along the second spiral line. Alternatively, the first side wall extends along the first spiral line and the second side wall extends along the second spiral line. It is understandable that the eccentric radii of the first spiral line and the second spiral line are different.

[0026] In some embodiments, optionally, the first side wall includes a first channel wall located in the first air suction section, and a second channel wall located in the second air suction section, and the second channel wall is connected to the first channel wall; wherein, along the radial direction of the disk body, the first channel wall is located on the outside of the extension wall of the second channel wall, and has a first distance between the first channel wall and the extension wall of the second channel wall.

[0027] In this embodiment, the first side wall includes a first channel wall and a second channel wall. Specifically, the first channel wall is located in the first air suction section, and the second channel wall is located in the second air suction section. That is, the first channel wall is closer to the air suction port than the second channel wall.

[0028] Along the radial direction of the disc body, the first channel wall is located outside the extension wall of the second channel wall, that is, a portion of the first side wall close to the air intake port is recessed radially outward to increase the radial width of the first air intake section.

[0029] When the movable scroll of the movable scroll is inserted into the suction channel and the movable scroll rotates relative to the fixed scroll and the movable scroll contacts the first side wall, a gap with a first spacing is formed between the cantilever end of the movable scroll and the first channel wall, thereby effectively improving the stress condition of the cantilever end of the movable scroll under high speed of the compressor, significantly reducing the contact stress between the cantilever end of the movable scroll and the first channel wall, and avoiding the fracture of the cantilever end of the movable scroll caused by stress concentration, thereby improving the strength of the movable scroll, extending the service life of the fixed scroll, the movable scroll and the compressor having the fixed scroll, and improving the stability and reliability of the compressor when running at high speed, thereby meeting the demand for high speed operation of the compressor.

[0030] In some embodiments, optionally, the first interval H1 satisfies 0.01 mm≤H1≤0.1 mm.

[0031] In this embodiment, the value range of the first spacing is defined, that is, the value range of the width of the gap formed between the cantilever end of the movable scroll and the first channel wall is defined.

[0032] By making the first spacing between 0.01mm and 0.1mm, the stress condition of the cantilever end of the movable scroll can be improved when the compressor is running at a high speed, and the contact stress between the cantilever end of the movable scroll and the first channel wall can be significantly reduced. It can also avoid the cantilever end of the movable scroll from being broken due to stress concentration, and improve the strength of the movable scroll while avoiding the problem of leakage caused by excessive gap between the cantilever end of the movable scroll and the first channel wall, thereby further ensuring the stable operation of the compressor.

[0033] In some embodiments, optionally, the expansion angle β1 of the first channel wall and the expansion angle β2 of the second channel wall satisfy 10°≤β1-β2≤90°.

[0034] In this embodiment, the value range of the difference between the development angle of the first channel wall and the development angle of the second channel wall is limited, that is, the length of the first channel wall along the circumferential direction of the disc body is limited, that is, the arc length of the first channel wall is limited.

[0035] By limiting the circumferential length of the first channel wall, that is, limiting the circumferential length of the gap formed between the cantilever end of the movable volute and the first channel wall, it is possible to improve the stress condition of the cantilever end of the movable volute when the compressor is running at a high speed, significantly reduce the contact stress between the cantilever end of the movable volute and the first channel wall, and avoid stress concentration causing the cantilever end of the movable volute to break. While improving the strength of the movable volute, it is possible to avoid the problem of leakage caused by the circumferential length of the gap formed between the cantilever end of the movable volute and the first channel wall being too large, thereby further ensuring the stable operation of the compressor.

[0036] In some embodiments, optionally, the second side wall includes a third channel wall located in the first air suction section, and a fourth channel wall located in the second air suction section, the third channel wall is connected to the fourth channel wall, and along the radial direction of the disk body, the first channel wall is located on the outside of the third channel wall; wherein, along the radial direction of the disk body, the third channel wall is located on the inner side of the extension wall of the fourth channel wall, and has a second distance between the third channel wall and the extension wall of the fourth channel wall.

[0037] In this embodiment, the second side wall includes a third channel wall and a fourth channel wall. Specifically, the third channel wall is located in the first air suction section, and the fourth channel wall is located in the second air suction section. That is, the third channel wall is closer to the air suction port than the fourth channel wall.

[0038] Along the radial direction of the disc body, the third channel wall is located inside the extension wall of the fourth channel wall, that is, a portion of the second side wall close to the air intake port is recessed radially inward to increase the radial width of the first air intake section.

[0039] When the movable scroll of the movable scroll is inserted into the suction channel and the movable scroll rotates relative to the fixed scroll and the movable scroll contacts the second side wall, a gap with a second spacing is formed between the cantilever end of the movable scroll and the third channel wall, thereby effectively improving the stress condition of the cantilever end of the movable scroll under high speed of the compressor, significantly reducing the contact stress between the cantilever end of the movable scroll and the third channel wall, and avoiding the fracture of the cantilever end of the movable scroll caused by stress concentration, thereby improving the strength of the movable scroll, extending the service life of the fixed scroll, the movable scroll and the compressor having the fixed scroll, and improving the stability and reliability of the compressor when running at high speed, thereby meeting the demand for high speed operation of the compressor.

[0040] In some embodiments, optionally, the second interval H2 satisfies 0.01 mm≤H2≤0.1 mm.

[0041] In this embodiment, the value range of the second spacing is limited, that is, the value range of the width of the gap formed between the cantilever end of the movable scroll and the third channel wall is limited.

[0042] By making the second spacing between 0.01mm and 0.1mm, the stress condition of the cantilever end of the movable scroll cantilever can be improved when the compressor is running at a high speed, and the contact stress between the cantilever end of the movable scroll cantilever and the wall of the third channel can be significantly reduced. It can also avoid the cantilever end of the movable scroll cantilever from being broken due to stress concentration, and improve the strength of the movable scroll cantilever while avoiding the problem of leakage caused by excessive gap between the cantilever end of the movable scroll and the wall of the third channel, thereby further ensuring the stable operation of the compressor.

[0043] In some embodiments, optionally, the expansion angle α1 of the third channel wall and the expansion angle α2 of the fourth channel wall satisfy 10°≤α1-α2≤90°.

[0044] In this embodiment, the range of the difference between the development angle of the third channel wall and the development angle of the fourth channel wall is limited, that is, the length of the third channel wall along the circumferential direction of the disc body is limited, that is, the arc length of the third channel wall is limited.

[0045] By limiting the circumferential length of the third channel wall, that is, limiting the circumferential length of the gap formed between the cantilever end of the movable volute and the third channel wall, it is possible to improve the stress condition of the cantilever end of the movable volute when the compressor is running at a high speed, significantly reduce the contact stress between the cantilever end of the movable volute and the third channel wall, and avoid stress concentration causing the cantilever end of the movable volute to break. While improving the strength of the movable volute, it is possible to avoid the problem of leakage caused by the circumferential length of the gap formed between the cantilever end of the movable volute and the third channel wall being too large, thereby further ensuring the stable operation of the compressor.

[0046] In some embodiments, optionally, the first side wall further includes a first transition wall, and the first channel wall is connected to the second channel wall via the first transition wall; and / or the second side wall further includes a second transition wall, and the third channel wall is connected to the fourth channel wall via the second transition wall.

[0047] In this embodiment, the first side wall further includes a first transition wall. Specifically, the first channel wall and the second channel wall are connected via the first transition wall.

[0048] Alternatively, the second side wall further includes a second transition wall, and the third channel wall and the fourth channel wall are connected via the second transition wall.

[0049] Alternatively, the first side wall further includes a first transition wall, the second side wall further includes a second transition wall, the first channel wall is connected to the second channel wall via the first transition wall, and the third channel wall is connected to the fourth channel wall via the second transition wall, so as to form an air intake channel.

[0050] It can be understood that the stationary scroll also includes a suction side arc portion located at the suction port, and a correction section located at the center of the disc body.

[0051] It is worth noting that the first transition wall is configured as an arc-shaped wall or a straight wall, and / or the second transition wall is configured as an arc-shaped wall or a straight wall. The configuration can be made according to actual needs.

[0052] In some embodiments, optionally, the first transition wall is constructed as a first curved wall, which is tangent to the first channel wall and / or the second channel wall; and / or the second transition wall is constructed as a second curved wall, which is tangent to the third channel wall and / or the fourth channel wall.

[0053] In this embodiment, the first transition wall is a first arcuate wall, and the first arcuate wall is tangent to the first channel wall. Alternatively, the first arcuate wall is tangent to the second channel wall, or the first arcuate wall is tangent to both the first channel wall and the second channel wall. Thus, the connection between the first arcuate wall and the first channel wall and / or the second channel wall is smoothly transitioned, reducing the wear of the movable scroll during the rotation relative to the fixed scroll, and further extending the service life of the compressor.

[0054] The second transition wall is a second arcuate wall, and the second arcuate wall is tangent to the third channel wall. Alternatively, the second arcuate wall is tangent to the fourth channel wall, or the second arcuate wall is tangent to both the third channel wall and the fourth channel wall. Thus, the connection between the second arcuate wall and the third channel wall and / or the fourth channel wall is smoothly transitioned, reducing the wear of the movable scroll during the rotation relative to the fixed scroll, and further extending the service life of the compressor.

[0055] In addition, the first transition wall is a first arc-shaped wall, and the second transition wall is a second arc-shaped wall. They can be specifically configured according to actual needs.

[0056] In some embodiments, optionally, the equation of the first helix is:

[0057] x=-a×λ k ×cosλ-r1×cos(λ-arctan(k / λ));y=a×λ k ×sinλ+r1×sin(λ-arctan(k / λ));

[0058] Among them, a is the coefficient, λ is the radian of the development angle, k is the polynomial index, and r1 is the eccentric radius.

[0059] In this embodiment, the equation of the first helix is ​​defined. Specifically, at least a portion of the first side wall extends along the first helix. It can be understood that the eccentric radius of the same helix remains unchanged, and the expansion angles at different positions are different.

[0060] For example, the second channel wall and the extension wall of the second channel wall have different expansion angles, and the other parameters are the same. The first channel wall and the extension wall of the second channel wall have the same expansion angles, but different eccentric radii. Specifically, since the first channel wall is located outside the extension wall of the second channel wall in the radial direction, that is, the eccentric radius of the first channel wall is greater than the eccentric radius of the second channel wall.

[0061] The equation of the first spiral line is an equation in an x, y rectangular coordinate system with the center of the disk body as the origin. It can be understood that the expansion angle and the radian of the expansion angle can be converted to each other, specifically, λ=β÷180°×π, where β is the expansion angle of the first side wall.

[0062] In addition, a and k are constants.

[0063] In some embodiments, optionally, the equation of the second helix is:

[0064] x=a×λ k ×cosλ-r2×cos(λ-arctan(k / λ));y=-a×λ k×sinλ+r2×sin(λ-arctan(k / λ));

[0065] Among them, a is the coefficient, λ is the radian of the development angle, k is the polynomial index, and r2 is the eccentric radius.

[0066] In this embodiment, the equation of the second helix is ​​defined. Specifically, at least a portion of the second side wall extends along the second helix. It can be understood that the eccentric radius of the same helix remains unchanged, but the expansion angles at different positions are different.

[0067] For example, the fourth channel wall and the extension wall of the fourth channel wall have different expansion angles, and the other parameters are the same. The third channel wall and the extension wall of the fourth channel wall have the same expansion angles, but different eccentric radii. Specifically, since the third channel wall is located on the inner side of the extension wall of the fourth channel wall in the radial direction, that is, the eccentric radius of the third channel wall is smaller than the eccentric radius of the fourth channel wall.

[0068] The equation of the second spiral line is an equation in an x, y rectangular coordinate system with the center of the disk body as the origin. It can be understood that the expansion angle and the radian of the expansion angle can be converted to each other, specifically, λ=α÷180°×π, where α is the expansion angle of the second side wall.

[0069] In addition, a and k are constants.

[0070] According to a second aspect of the present invention, there is provided a compressor, comprising a stationary scroll provided by any of the above technical solutions, thereby having all the beneficial technical effects of the stationary scroll, which will not be described in detail herein.

[0071] Furthermore, the compressor also includes a movable scroll, which includes an end plate and a movable volute. The movable volute is arranged on the side of the end plate facing the fixed scroll and can be inserted into the intake passage so that the movable scroll and the fixed scroll cooperate to form a compression chamber, and the compression chamber is connected to the intake port; wherein, the movable volute includes a cantilever end away from the center of the end plate, and at least a portion of the cantilever end is located in the first intake section.

[0072] The compressor provided by an embodiment of the present invention includes a fixed scroll and a movable scroll. Specifically, the movable scroll includes a connected end plate and a movable scroll tooth, wherein the movable scroll tooth is arranged on the side of the end plate facing the fixed scroll, and the movable scroll tooth can be inserted into the intake channel so that the fixed scroll and the movable scroll cooperate to form a compression chamber.

[0073] Specifically, the refrigerant enters the suction port through the suction pipe and enters the compression chamber through the suction port. During the rotation of the movable scroll relative to the stationary scroll, the compression chamber continuously moves from the periphery to the center and the volume continuously decreases, causing the refrigerant pressure in the compression chamber to continuously increase. Finally, the compressed high-pressure refrigerant is discharged from the compression chamber through the exhaust port on the disk body, completing the process of refrigerant from suction, compression to exhaust.

[0074] It can be understood that under high-speed conditions, the centrifugal force of the movable scroll increases sharply, and the tail of the movable scroll tooth of the movable scroll is a cantilever beam structure, that is, the end of the movable scroll tooth close to the suction port is a cantilever beam structure. When the movable scroll rotates relative to the fixed scroll, the tail of the movable scroll tooth is deformed and subjected to the action of centrifugal force, so that the contact stress between the tail of the movable scroll tooth and the channel wall of the suction channel increases sharply, causing the movable scroll to be prone to breakage under extreme conditions.

[0075] Moreover, during the operation of the compressor, there is stress concentration at the connection between the tail of the movable scroll and the end plate of the movable scroll. When the compressor is running at high speed, if the stress at the connection between the tail of the movable scroll and the end plate exceeds the fatigue strength of the movable scroll, fracture may also occur.

[0076] The intake passage includes a first intake section and a second intake section. Specifically, the first intake section is connected to the second intake section, and the first intake section is arranged close to the intake port. That is to say, when the movable scroll and the fixed scroll cooperate to form a compression chamber, at least a portion of the cantilever end of the movable scroll tooth is located in the first intake section.

[0077] Along the radial direction of the disk body, the width of the first suction section is greater than that of the second suction section. That is to say, the width of the first suction section that cooperates with the cantilever end of the movable scroll is increased, so that in the process of the movable scroll disk rotating relative to the fixed scroll disk, a certain gap is formed between at least a part of the cantilever end and the channel wall of the first suction section, thereby effectively improving the stress condition of the cantilever end of the movable scroll disk under high speed of the compressor, significantly reducing the contact stress between the cantilever end of the movable scroll disk and the channel wall of the first suction section, and avoiding the fracture of the cantilever end of the movable scroll disk caused by stress concentration, thereby improving the strength of the movable scroll disk, extending the service life of the fixed scroll disk, the movable scroll disk and the compressor having the fixed scroll disk, and improving the stability and reliability of the compressor when running at high speed, thereby meeting the demand for high speed operation of the compressor.

[0078] Among them, it can meet the high speed operation requirements of the compressor 140rps and above.

[0079] In addition, by increasing the radial width of the first suction section that cooperates with the cantilever end of the movable scroll, the strength of the movable scroll that cooperates with the fixed scroll is improved. Compared with the related technology of manufacturing the movable scroll with high-strength materials, the processing difficulty of the fixed scroll and the movable scroll can be reduced, thereby reducing the processing cost of the compressor and being suitable for large-scale production.

[0080] It is worth noting that the compressor also includes a cross slip ring, a main frame, a crankshaft, a stator, a rotor, a sub-frame, a casing, an upper cover and a lower cover. Specifically, after the compression is completed, the high-pressure refrigerant discharged through the exhaust port of the disk body is discharged into the exhaust cavity, wherein the casing is connected with the upper cover and the lower cover to form the exhaust cavity. The high-pressure refrigerant flows downward to the motor formed by the stator and the rotor to cool the motor, and is finally discharged through the exhaust pipe on the casing.

[0081] In addition, there is an oil pool between the casing and the lower cover, and the oil pool contains lubricating oil. During the operation of the compressor, the lubricating oil is supplied from the oil pool along the central oil hole of the crankshaft to the upper part under the action of the oil guide component at the lower part of the crankshaft. After lubricating the bearings, it enters the oil storage part of the main frame and flows out from the oil return hole and returns to the bottom oil pool. Among them, part of the lubricating oil will also enter the compression chamber to lubricate the movable scroll and the static scroll, thereby realizing the lubrication of the moving pair.

[0082] It is worth noting that the compressor includes but is not limited to a scroll compressor.

[0083] According to a third aspect of the present invention, there is provided a refrigeration device, comprising a stationary scroll as provided in the first aspect or a compressor as provided in the second aspect, and thus possessing all the beneficial technical effects of the stationary scroll or the compressor, which will not be described in detail herein.

[0084] Among them, refrigeration equipment includes but is not limited to air conditioners.

[0085] Additional aspects and advantages according to the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0087] Figure 1 A schematic structural diagram of a stationary scroll according to an embodiment of the present invention is shown;

[0088] Figure 2 Shows Figure 1 An enlarged view of the static vortex at position A of the illustrated embodiment;

[0089] Figure 3 One of the partial structural schematic diagrams of a compressor according to an embodiment of the present invention is shown;

[0090] Figure 4 A second schematic diagram of a partial structure of a compressor according to an embodiment of the present invention is shown;

[0091] Figure 5A third schematic diagram of a partial structure of a compressor according to an embodiment of the present invention is shown;

[0092] Figure 6 A schematic structural diagram of a compressor according to an embodiment of the present invention is shown.

[0093] in, Figures 1 to 6 The corresponding relationship between the reference numerals and the component names is as follows:

[0094] 100 static scroll, 110 scroll body, 111 suction port, 120 static scroll tooth, 121 first side wall, 1211 first channel wall, 1212 second channel wall, 1213 first transition wall, 122 second side wall, 1221 third channel wall, 1222 fourth channel wall, 1223 second transition wall, 130 suction channel, 131 first suction section, 132 second suction section, 200 compressor, 210 movable scroll, 211 end plate, 212 movable scroll tooth, 220 compression chamber, 230 cantilever end. DETAILED DESCRIPTION

[0095] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0096] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0097] Refer to the following Figures 1 to 6 The fixed scroll 100, the compressor 200 and the refrigeration equipment provided according to some embodiments of the present invention are described.

[0098] In one embodiment according to the present application, Figure 1 and Figure 2 As shown, a static vortex disk 100 is proposed, and the static vortex disk 100 includes: a disk body 110, and the disk body 110 is provided with an air intake port 111, and the air intake port 111 is used to communicate with the outside; a static vortex tooth 120, which is arranged on one side of the disk body 110 and forms an air intake channel 130 with the disk body 110, and the air intake channel 130 is connected with the air intake port 111, and the air intake channel 130 includes a first air intake section 131 and a second air intake section 132 connected to each other, and the first air intake section 131 is arranged closer to the air intake port 111 than the second air intake section 132; wherein, along the radial direction of the disk body 110, the width of the first air intake section 131 is greater than the width of the second air intake section 132.

[0099] The static scroll 100 provided in the embodiment of the present invention includes a disk body 110 and a static scroll tooth 120. Specifically, the static scroll tooth 120 is arranged on one side of the disk body 110, and the static scroll tooth 120 and the disk body 110 form an air intake channel 130, and the air intake channel 130 is connected to the air intake port 111 on the disk body 110.

[0100] In addition, if Figure 3 , Figure 4 and Figure 5 As shown, the compressor 200 further includes a movable scroll 210, a movable volute 212 of the movable scroll 210 is inserted into the suction channel 130, and cooperates with the fixed scroll 100 to form a plurality of crescent-shaped compression chambers 220, and the compression chambers 220 are connected to the suction port 111, and the suction port 111 is connected to the suction pipe of the compressor 200. Specifically, the refrigerant enters the suction port 111 through the suction pipe, and enters the compression chamber 220 through the suction port 111. During the rotation of the movable scroll 210 relative to the fixed scroll 100, the compression chamber 220 continuously moves from the periphery to the center, and the volume continuously decreases, so that the refrigerant pressure in the compression chamber 220 continuously increases, and finally the compressed high-pressure refrigerant is discharged from the compression chamber 220 through the exhaust port on the disk body 110, completing the process of the refrigerant from suction, compression to exhaust.

[0101] It can be understood that under high speed conditions, the centrifugal force of the movable scroll 210 increases sharply, and the tail of the movable volute 212 of the movable scroll 210 is a cantilever beam structure, that is, the end of the movable volute 212 close to the suction port 111 is a cantilever beam structure. When the movable scroll 210 rotates relative to the fixed scroll 100, the tail of the movable volute 212 is deformed and centrifugal force is applied, so that the contact stress between the tail of the movable volute 212 and the channel wall of the suction channel 130 increases sharply, causing the movable scroll 210 to be easily broken under extreme conditions.

[0102] Moreover, during the operation of the compressor 200, stress concentration also occurs at the connection between the tail of the movable scroll 212 and the end plate 211 of the movable scroll 210. When the compressor 200 operates at a high speed, if the stress at the connection between the tail of the movable scroll 212 and the end plate 211 exceeds the fatigue strength of the movable scroll 212, fracture may also occur.

[0103] The intake passage 130 includes a first intake section 131 and a second intake section 132. Specifically, the first intake section 131 is connected to the second intake section 132, and the first intake section 131 is arranged close to the intake port 111. That is to say, when the movable scroll 210 and the fixed scroll 100 cooperate to form the compression chamber 220, at least a portion of the cantilever end 230 of the movable scroll tooth 212 is located in the first intake section 131.

[0104] Along the radial direction of the disk body 110, the width of the first suction section 131 is greater than the width of the second suction section 132. That is, the width of the first suction section 131 that cooperates with the cantilever end 230 of the movable scroll 212 is increased, so that when the movable scroll 210 rotates relative to the fixed scroll 100, a certain gap is formed between at least a portion of the cantilever end 230 and the channel wall of the first suction section 131, thereby effectively improving the compressor 200 under high speed conditions. The stress condition of 30 significantly reduces the contact stress between the cantilever end 230 of the movable scroll 212 and the channel wall of the first suction section 131, and can also avoid the fracture of the cantilever end 230 of the movable scroll 212 caused by stress concentration, thereby improving the strength of the movable scroll 212, extending the service life of the fixed scroll 100, the movable scroll 210 and the compressor 200 with the fixed scroll 100, and improving the stability and reliability of the compressor 200 when running at high speed, thereby meeting the demand for high-speed operation of the compressor 200.

[0105] Among them, the high speed operation requirement of the compressor 200 at 140rps and above can be met.

[0106] In addition, by increasing the radial width of the first suction section 131 that cooperates with the cantilever end 230 of the movable scroll 212, the strength of the movable scroll 210 that cooperates with the fixed scroll 100 is improved. Compared with the related technology of manufacturing the movable scroll 210 with high-strength materials, the processing difficulty of the fixed scroll 100 and the movable scroll 210 can be reduced, and then the processing cost of the compressor 200 can be reduced, which is suitable for large-scale production.

[0107] In some embodiments, optionally, along the radial direction of the disk body 110 , the width d1 of the first suction section 131 and the width d2 of the second suction section 132 satisfy 0.01 mm≤d1-d2≤0.2 mm.

[0108] In this embodiment, a value range of the difference between the width of the first suction section 131 and the width of the second suction section 132 along the radial direction of the disk body 110 is defined.

[0109] It can be understood that, when the movable scroll 210 rotates relative to the fixed scroll 100, the cantilever end 230 of the movable scroll 212 is in contact with both opposite channel walls of the first suction section 131, and the radial width of the first suction section 131 can be increased by making one side of the channel wall of the first suction section 131 concave radially inward or outward, or making one side of the channel wall of the first suction section 131 concave radially inward, and the other side of the channel wall concave radially outward. The specific configuration can be made according to actual needs.

[0110] By limiting the value range of the difference between the width of the first suction section 131 and the width of the second suction section 132, that is, limiting the width of the gap formed when the cantilever end 230 of the movable volute 212 cooperates with the channel wall of the first suction section 131, it is possible to improve the stress condition of the cantilever end 230 of the movable volute 212 when the compressor 200 runs at a high speed, significantly reduce the contact stress between the cantilever end 230 of the movable volute 212 and the channel wall of the first suction section 131, and avoid stress concentration causing the cantilever end 230 of the movable volute 212 to break. While improving the strength of the movable volute 212, it is possible to avoid the problem of leakage caused by the gap formed by the cantilever end 230 of the movable volute 212 and the channel wall of the first suction section 131 being too large, thereby further ensuring the stable operation of the compressor 200.

[0111] In addition, by increasing the radial width of the first suction section 131 that cooperates with the cantilever end 230 of the movable scroll 212, the strength of the movable scroll 210 that cooperates with the fixed scroll 100 is improved. Compared with the related technology of manufacturing the movable scroll 210 with high-strength materials, the processing difficulty of the fixed scroll 100 and the movable scroll 210 can be reduced, and then the processing cost of the compressor 200 can be reduced, which is suitable for large-scale production.

[0112] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, along the radial direction of the disk body 110, the static vortex 120 includes a first side wall 121 and a second side wall 122 that are relatively arranged, the first side wall 121 is located radially outside the second side wall 122, and the first side wall 121 and the second side wall 122 form an air intake channel 130; the first side wall 121 extends along the first spiral line; and / or the second side wall 122 extends along the second spiral line.

[0113] In this embodiment, along the radial direction of the disc body 110, the static scroll 120 includes a first side wall 121 and a second side wall 122, and the first side wall 121 is arranged opposite to the second side wall 122, and the first side wall 121 and the second side wall 122 form an air suction passage 130. The first side wall 121 is located radially outside the second side wall 122, that is, the first side wall 121 is the inner side wall of the air suction passage 130, and the second side wall 122 is the outer side wall of the air suction passage 130. Specifically, the first side wall 121 can be composed of a circular involute or an algebraic spiral line, and the second side wall 122 can be composed of a circular involute or an algebraic spiral line.

[0114] It is understandable that if the first side wall 121 and the second side wall 122 are formed by circular involutes, the base circle radii of the first side wall 121 and the second side wall 122 are different. If the first side wall 121 and the second side wall 122 are formed by algebraic spiral lines, the eccentric radii of the first side wall 121 and the second side wall 122 are different. The specific settings can be made according to actual needs.

[0115] Optionally, the first side wall 121 extends along the first spiral line. Alternatively, the second side wall 122 extends along the second spiral line. Alternatively, the first side wall 121 extends along the first spiral line, and the second side wall 122 extends along the second spiral line. It is understandable that the eccentric radii of the first spiral line and the second spiral line are different.

[0116] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, the first side wall 121 includes a first channel wall 1211 located in the first air suction section 131, and a second channel wall 1212 located in the second air suction section 132, and the second channel wall 1212 is connected to the first channel wall 1211; wherein, along the radial direction of the disk body 110, the first channel wall 1211 is located on the outside of the extension wall of the second channel wall 1212, and has a first distance between the extension wall of the second channel wall 1212.

[0117] In this embodiment, the first side wall 121 includes a first channel wall 1211 and a second channel wall 1212. Specifically, the first channel wall 1211 is located in the first air suction section 131, and the second channel wall 1212 is located in the second air suction section 132. That is, the first channel wall 1211 is closer to the air suction port 111 than the second channel wall 1212.

[0118] Along the radial direction of the disk body 110 , the first channel wall 1211 is located outside the extension wall of the second channel wall 1212 , that is, a portion of the first side wall 121 close to the air intake port 111 is radially recessed outward to increase the radial width of the first air intake section 131 .

[0119] When the movable scroll 212 of the movable scroll 210 is inserted into the suction channel 130, and the movable scroll 210 rotates relative to the fixed scroll 100, and the movable scroll 212 contacts the first side wall 121, a gap with a first spacing is formed between the cantilever end 230 of the movable scroll 212 and the first channel wall 1211, thereby effectively improving the stress condition of the cantilever end 230 of the movable scroll 212 under high speed of the compressor 200, significantly reducing the contact stress between the cantilever end 230 of the movable scroll 212 and the first channel wall 1211, and avoiding the fracture of the cantilever end 230 of the movable scroll 212 caused by stress concentration, thereby improving the strength of the movable scroll 212, extending the service life of the fixed scroll 100, the movable scroll 210 and the compressor 200 having the fixed scroll 100, and improving the stability and reliability of the compressor 200 when running at high speed, thereby meeting the demand for high speed operation of the compressor 200.

[0120] Among them, the high speed operation requirement of the compressor 200 at 140rps and above can be met.

[0121] In addition, by increasing the radial width of the first suction section 131 that cooperates with the cantilever end 230 of the movable scroll 212, the strength of the movable scroll 210 that cooperates with the fixed scroll 100 is improved. Compared with the related technology of manufacturing the movable scroll 210 with high-strength materials, the processing difficulty of the fixed scroll 100 and the movable scroll 210 can be reduced, and then the processing cost of the compressor 200 can be reduced, which is suitable for large-scale production.

[0122] In some embodiments, optionally, the first interval H1 satisfies 0.01 mm≤H1≤0.1 mm.

[0123] In this embodiment, a value range of the first spacing is defined, that is, a value range of the width of the gap formed between the cantilever end 230 of the movable scroll 212 and the first channel wall 1211 is defined.

[0124] By making the first spacing between 0.01mm and 0.1mm, the stress condition of the cantilever end 230 of the movable volute 212 can be improved when the compressor 200 runs at a high speed, and the contact stress between the cantilever end 230 of the movable volute 212 and the first channel wall 1211 can be significantly reduced. The stress concentration can also avoid the cantilever end 230 of the movable volute 212 from breaking, and the strength of the movable volute 212 can be improved while avoiding the problem of leakage caused by the gap between the cantilever end 230 of the movable volute 212 and the first channel wall 1211 being too large, thereby further ensuring the stable operation of the compressor 200.

[0125] In some embodiments, optionally, the expansion angle β1 of the first channel wall 1211 and the expansion angle β2 of the second channel wall 1212 satisfy 10°≤β1-β2≤90°.

[0126] In this embodiment, the range of the difference between the development angle of the first channel wall 1211 and the development angle of the second channel wall 1212 is defined, that is, the length of the first channel wall 1211 along the circumferential direction of the disk body 110 is defined, that is, the arc length of the first channel wall 1211 is defined.

[0127] By limiting the circumferential length of the first channel wall 1211, that is, limiting the circumferential length of the gap formed between the cantilever end 230 of the movable volute 212 and the first channel wall 1211, it is possible to improve the stress condition of the cantilever end 230 of the movable volute 212 when the compressor 200 is running at a high speed, significantly reduce the contact stress between the cantilever end 230 of the movable volute 212 and the first channel wall 1211, and avoid stress concentration causing the cantilever end 230 of the movable volute 212 to break. While improving the strength of the movable volute 212, it is possible to avoid the problem of leakage caused by the circumferential length of the gap formed between the cantilever end 230 of the movable volute 212 and the first channel wall 1211 being too large, thereby further ensuring the stable operation of the compressor 200.

[0128] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, the second side wall 122 includes a third channel wall 1221 located in the first air suction section 131, and a fourth channel wall 1222 located in the second air suction section 132, the third channel wall 1221 is connected to the fourth channel wall 1222, and along the radial direction of the disk body 110, the first channel wall 1211 is located on the outside of the third channel wall 1221; wherein, along the radial direction of the disk body 110, the third channel wall 1221 is located on the inner side of the extension wall of the fourth channel wall 1222, and has a second distance between the extension wall of the fourth channel wall 1222.

[0129] In this embodiment, the second side wall 122 includes a third channel wall 1221 and a fourth channel wall 1222. Specifically, the third channel wall 1221 is located in the first air suction section 131, and the fourth channel wall 1222 is located in the second air suction section 132. That is, the third channel wall 1221 is closer to the air suction port 111 than the fourth channel wall 1222.

[0130] Along the radial direction of the disk body 110 , the third channel wall 1221 is located inside the extension wall of the fourth channel wall 1222 , that is, a portion of the second side wall 122 close to the air intake port 111 is radially recessed inward to increase the radial width of the first air intake section 131 .

[0131] When the movable scroll 212 of the movable scroll 210 is inserted into the suction channel 130, and the movable scroll 210 rotates relative to the fixed scroll 100, and the movable scroll 212 contacts the second side wall 122, a gap with a second spacing is formed between the cantilever end 230 of the movable scroll 212 and the third channel wall 1221, thereby effectively improving the stress condition of the cantilever end 230 of the movable scroll 212 under high speed of the compressor 200, significantly reducing the contact stress between the cantilever end 230 of the movable scroll 212 and the third channel wall 1221, and avoiding the fracture of the cantilever end 230 of the movable scroll 212 caused by stress concentration, thereby improving the strength of the movable scroll 212, extending the service life of the fixed scroll 100, the movable scroll 210 and the compressor 200 having the fixed scroll 100, and improving the stability and reliability of the compressor 200 when running at high speed, thereby meeting the demand for high speed operation of the compressor 200.

[0132] Among them, the high speed operation requirement of the compressor 200 at 140rps and above can be met.

[0133] In addition, by increasing the radial width of the first suction section 131 that cooperates with the cantilever end 230 of the movable scroll 212, the strength of the movable scroll 210 that cooperates with the fixed scroll 100 is improved. Compared with the related technology of manufacturing the movable scroll 210 with high-strength materials, the processing difficulty of the fixed scroll 100 and the movable scroll 210 can be reduced, and then the processing cost of the compressor 200 can be reduced, which is suitable for large-scale production.

[0134] In some embodiments, optionally, the second interval H2 satisfies 0.01 mm≤H2≤0.1 mm.

[0135] In this embodiment, the value range of the second spacing is defined, that is, the value range of the width of the gap formed between the cantilever end 230 of the movable scroll 212 and the third channel wall 1221 is defined.

[0136] By making the second spacing between 0.01mm and 0.1mm, it is possible to improve the stress condition of the cantilever end 230 of the movable volute 212 when the compressor 200 is running at a high speed, significantly reduce the contact stress between the cantilever end 230 of the movable volute 212 and the third channel wall 1221, and avoid stress concentration causing the cantilever end 230 of the movable volute 212 to break. While improving the strength of the movable volute 212, it is possible to avoid the problem of leakage caused by the gap between the cantilever end 230 of the movable volute 212 and the third channel wall 1221 being too large, thereby further ensuring the stable operation of the compressor 200.

[0137] In some embodiments, optionally, the expansion angle α1 of the third channel wall 1221 and the expansion angle α2 of the fourth channel wall 1222 satisfy 10°≤α1-α2≤90°.

[0138] In this embodiment, the range of the difference between the development angle of the third channel wall 1221 and the development angle of the fourth channel wall 1222 is limited, that is, the length of the third channel wall 1221 along the circumferential direction of the disk body 110 is limited, that is, the arc length of the third channel wall 1221 is limited.

[0139] By limiting the circumferential length of the third channel wall 1221, that is, limiting the circumferential length of the gap formed between the cantilever end 230 of the movable volute 212 and the third channel wall 1221, it is possible to improve the stress condition of the cantilever end 230 of the movable volute 212 when the compressor 200 is running at a high speed, significantly reduce the contact stress between the cantilever end 230 of the movable volute 212 and the third channel wall 1221, and avoid stress concentration causing the cantilever end 230 of the movable volute 212 to break. While improving the strength of the movable volute 212, it is possible to avoid the problem of leakage caused by the circumferential length of the gap formed between the cantilever end 230 of the movable volute 212 and the third channel wall 1221 being too large, thereby further ensuring the stable operation of the compressor 200.

[0140] like Figure 2 As shown, in some embodiments, optionally, the first side wall 121 also includes a first transition wall 1213, and the first channel wall 1211 is connected to the second channel wall 1212 via the first transition wall 1213; and / or the second side wall 122 also includes a second transition wall 1223, and the third channel wall 1221 is connected to the fourth channel wall 1222 via the second transition wall 1223.

[0141] In this embodiment, the first side wall 121 further includes a first transition wall 1213 . Specifically, the first channel wall 1211 and the second channel wall 1212 are connected via the first transition wall 1213 .

[0142] Alternatively, the second side wall 122 further includes a second transition wall 1223 , and the third channel wall 1221 is connected to the fourth channel wall 1222 via the second transition wall 1223 .

[0143] Alternatively, the first side wall 121 further includes a first transition wall 1213, the second side wall 122 further includes a second transition wall 1223, the first channel wall 1211 is connected to the second channel wall 1212 via the first transition wall 1213, and the third channel wall 1221 is connected to the fourth channel wall 1222 via the second transition wall 1223, so as to form the air intake channel 130.

[0144] It can be understood that the stationary scroll 120 further includes a suction side arc portion located at the suction port 111 , and a correction section located at the center of the disk body 110 .

[0145] It is worth noting that the first transition wall 1213 is configured as an arc-shaped wall or a straight wall, and / or the second transition wall 1223 is configured as an arc-shaped wall or a straight wall. The configurations can be made according to actual needs.

[0146] Along the radial direction of the disk body 110, the width of the first suction section 131 is greater than the width of the second suction section 132. That is, the width of the first suction section 131 that cooperates with the cantilever end 230 of the movable scroll 212 is increased, so that when the movable scroll 210 rotates relative to the fixed scroll 100, a certain gap is formed between at least a portion of the cantilever end 230 and the channel wall of the first suction section 131, thereby effectively improving the compressor 200 under high speed conditions. The stress condition of 30 significantly reduces the contact stress between the cantilever end 230 of the movable scroll 212 and the channel wall of the first suction section 131, and can also avoid the fracture of the cantilever end 230 of the movable scroll 212 caused by stress concentration, thereby improving the strength of the movable scroll 212, extending the service life of the fixed scroll 100, the movable scroll 210 and the compressor 200 with the fixed scroll 100, and improving the stability and reliability of the compressor 200 when running at high speed, thereby meeting the demand for high-speed operation of the compressor 200.

[0147] Among them, the high speed operation requirement of the compressor 200 at 140rps and above can be met.

[0148] In addition, by increasing the radial width of the first suction section 131 that cooperates with the cantilever end 230 of the movable scroll 212, the strength of the movable scroll 210 that cooperates with the fixed scroll 100 is improved. Compared with the related technology of manufacturing the movable scroll 210 with high-strength materials, the processing difficulty of the fixed scroll 100 and the movable scroll 210 can be reduced, and then the processing cost of the compressor 200 can be reduced, which is suitable for large-scale production.

[0149] like Figure 2 As shown, in some embodiments, optionally, the first transition wall 1213 is constructed as a first curved wall, which is tangent to the first channel wall 1211 and / or the second channel wall 1212; and / or the second transition wall 1223 is constructed as a second curved wall, which is tangent to the third channel wall 1221 and / or the fourth channel wall 1222.

[0150] In this embodiment, the first transition wall 1213 is a first arcuate wall, and the first arcuate wall is tangent to the first channel wall 1211. Alternatively, the first arcuate wall is tangent to the second channel wall 1212, or the first arcuate wall is tangent to both the first channel wall 1211 and the second channel wall 1212. Thus, the connection between the first arcuate wall and the first channel wall 1211 and / or the second channel wall 1212 is smoothly transitioned, reducing the wear of the movable scroll 210 during the rotation relative to the fixed scroll 100, and further extending the service life of the compressor 200.

[0151] The second transition wall 1223 is a second arc-shaped wall, and the second arc-shaped wall is tangent to the third channel wall 1221. Alternatively, the second arc-shaped wall is tangent to the fourth channel wall 1222, or the second arc-shaped wall is tangent to both the third channel wall 1221 and the fourth channel wall 1222. Thus, the connection between the second arc-shaped wall and the third channel wall 1221 and / or the fourth channel wall 1222 is smoothly transitioned, reducing the wear of the movable scroll 210 during the rotation relative to the fixed scroll 100, and further extending the service life of the compressor 200.

[0152] In addition, the first transition wall 1213 is a first arc-shaped wall, and the second transition wall 1223 is a second arc-shaped wall, which can be specifically configured according to actual needs.

[0153] In some embodiments, optionally, the equation of the first helix is:

[0154] x=-a×λ k ×cosλ-r1×cos(λ-arctan(k / λ));y=a×λ k ×sinλ+r1×sin(λ-arctan(k / λ));

[0155] Among them, a is the coefficient, λ is the radian of the development angle, k is the polynomial index, and r1 is the eccentric radius.

[0156] In this embodiment, the equation of the first spiral line is defined. Specifically, at least a portion of the first side wall 121 extends along the first spiral line. It can be understood that the eccentric radius of the same spiral line remains unchanged, and the expansion angles at different positions are different, that is, the expansion angles at different positions of the first side wall 121 are different.

[0157] For example, the second channel wall 1212 and the extension wall of the second channel wall 1212 have different expansion angles, and the other parameters are the same. The first channel wall 1211 and the extension wall of the second channel wall 1212 have the same expansion angles, but different eccentric radii. Specifically, since the first channel wall 1211 is located outside the extension wall of the second channel wall 1212 in the radial direction, that is, the eccentric radius of the first channel wall 1211 is greater than the eccentric radius of the second channel wall 1212.

[0158] The equation of the first spiral line is an equation in an x, y rectangular coordinate system with the center of the disk body 110 as the origin. It can be understood that the expansion angle and the radian of the expansion angle can be converted to each other, specifically, λ=β÷180°×π, where β is the expansion angle of the first side wall.

[0159] In addition, a and k are constants.

[0160] In some embodiments, optionally, the equation of the second helix is:

[0161] x=a×λ k ×cosλ-r2×cos(λ-arctan(k / λ));y=-a×λ k ×sinλ+r2×sin(λ-arctan(k / λ));

[0162] Among them, a is the coefficient, λ is the radian of the development angle, k is the polynomial index, and r2 is the eccentric radius.

[0163] In this embodiment, the equation of the second spiral line is defined. Specifically, at least a portion of the second side wall 122 extends along the second spiral line. It can be understood that the eccentric radius of the same spiral line remains unchanged, and the expansion angles at different positions are different, that is, the expansion angles at different positions of the second side wall 122 are different.

[0164] For example, the fourth channel wall 1222 and the extension wall of the fourth channel wall 1222 have different expansion angles, and the other parameters are the same. The third channel wall 1221 and the extension wall of the fourth channel wall 1222 have the same expansion angles, but different eccentric radii. Specifically, since the third channel wall 1221 is located on the inner side of the extension wall of the fourth channel wall 1222 in the radial direction, that is, the eccentric radius of the third channel wall 1221 is smaller than the eccentric radius of the fourth channel wall 1222.

[0165] The equation of the second spiral line is an equation in an x, y rectangular coordinate system with the center of the disk body 110 as the origin. It can be understood that the expansion angle and the radian of the expansion angle can be converted to each other, specifically, λ=α÷180°×π, where α is the expansion angle of the second side wall.

[0166] In addition, a and k are constants.

[0167] According to a second aspect of the present invention, there is provided a compressor 200, comprising a stationary scroll 100 as provided in any of the above embodiments, and thus having all the beneficial technical effects of the stationary scroll 100, which will not be described in detail herein.

[0168] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, further, the compressor 200 also includes a movable scroll 210, which includes an end plate 211 and a movable volute 212. The movable volute 212 is arranged on the side of the end plate 211 facing the fixed scroll 100, and can be inserted into the intake channel 130, so that the movable scroll 210 and the fixed scroll 100 cooperate to form a compression chamber 220, and the compression chamber 220 is connected to the intake port 111; wherein, the movable volute 212 includes a cantilever end 230 away from the center of the end plate 211, and at least a portion of the cantilever end 230 is located in the first intake section 131.

[0169] The compressor 200 provided in an embodiment of the present invention includes a fixed scroll 100 and a movable scroll 210. Specifically, the movable scroll 210 includes a connected end plate 211 and a movable scroll tooth 212, wherein the movable scroll tooth 212 is arranged on the side of the end plate 211 facing the fixed scroll 100, and the movable scroll tooth 212 can be inserted into the intake channel 130, so that the fixed scroll 100 and the movable scroll 210 cooperate to form a compression chamber 220.

[0170] Specifically, the refrigerant enters the intake port 111 through the intake pipe, and enters the compression chamber 220 through the intake port 111. During the rotation of the movable scroll 210 relative to the fixed scroll 100, the compression chamber 220 continuously moves from the periphery to the center, and the volume continuously decreases, so that the refrigerant pressure in the compression chamber 220 continuously increases. Finally, the compressed high-pressure refrigerant is discharged from the compression chamber 220 through the exhaust port on the disk body 110, completing the process of the refrigerant from intake, compression to exhaust.

[0171] It can be understood that under high speed conditions, the centrifugal force of the movable scroll 210 increases sharply, and the tail of the movable volute 212 of the movable scroll 210 is a cantilever beam structure, that is, the end of the movable volute 212 close to the suction port 111 is a cantilever beam structure. When the movable scroll 210 rotates relative to the fixed scroll 100, the tail of the movable volute 212 is deformed and centrifugal force is applied, so that the contact stress between the tail of the movable volute 212 and the channel wall of the suction channel 130 increases sharply, causing the movable scroll 210 to be easily broken under extreme conditions.

[0172] Moreover, during the operation of the compressor 200, stress concentration also occurs at the connection between the tail of the movable scroll 212 and the end plate 211 of the movable scroll 210. When the compressor 200 operates at a high speed, if the stress at the connection between the tail of the movable scroll 212 and the end plate 211 exceeds the fatigue strength of the movable scroll 212, fracture may also occur.

[0173] The intake passage 130 includes a first intake section 131 and a second intake section 132. Specifically, the first intake section 131 is connected to the second intake section 132, and the first intake section 131 is arranged close to the intake port 111. That is to say, when the movable scroll 210 and the fixed scroll 100 cooperate to form the compression chamber 220, at least a portion of the cantilever end 230 of the movable scroll tooth 212 is located in the first intake section 131.

[0174] Along the radial direction of the disk body 110, the width of the first suction section 131 is greater than the width of the second suction section 132. That is, the width of the first suction section 131 that cooperates with the cantilever end 230 of the movable scroll 212 is increased, so that when the movable scroll 210 rotates relative to the fixed scroll 100, a certain gap is formed between at least a portion of the cantilever end 230 and the channel wall of the first suction section 131, thereby effectively improving the compressor 200 under high speed conditions. The stress condition of 30 significantly reduces the contact stress between the cantilever end 230 of the movable scroll 212 and the channel wall of the first suction section 131, and can also avoid the fracture of the cantilever end 230 of the movable scroll 212 caused by stress concentration, thereby improving the strength of the movable scroll 212, extending the service life of the fixed scroll 100, the movable scroll 210 and the compressor 200 with the fixed scroll 100, and improving the stability and reliability of the compressor 200 when running at high speed, thereby meeting the demand for high-speed operation of the compressor 200.

[0175] Among them, the high speed operation requirement of the compressor 200 at 140rps and above can be met.

[0176] In addition, by increasing the radial width of the first suction section 131 that cooperates with the cantilever end 230 of the movable scroll 212, the strength of the movable scroll 210 that cooperates with the fixed scroll 100 is improved. Compared with the related technology of manufacturing the movable scroll 210 with high-strength materials, the processing difficulty of the fixed scroll 100 and the movable scroll 210 can be reduced, and then the processing cost of the compressor 200 can be reduced, which is suitable for large-scale production.

[0177] It is worth noting that the compressor 200 further includes a cross slip ring, a main frame, a crankshaft, a stator, a rotor, a sub-frame, a casing, an upper cover and a lower cover. Specifically, after the compression is completed, the high-pressure refrigerant discharged through the exhaust port of the disk body 110 is discharged into the exhaust cavity, wherein the casing is connected with the upper cover and the lower cover to form the exhaust cavity. The high-pressure refrigerant flows downward to the motor formed by the stator and the rotor to cool the motor, and is finally discharged through the exhaust pipe on the casing.

[0178] In addition, there is an oil pool between the casing and the lower cover, and the oil pool contains lubricating oil. During the operation of the compressor 200, the lubricating oil is supplied from the oil pool along the central oil hole of the crankshaft to the upper part under the action of the oil guide component at the lower part of the crankshaft, and enters the oil storage part of the main frame after lubricating the bearing, and flows out from the oil return hole and returns to the bottom oil pool. Among them, part of the lubricating oil will also enter the compression chamber 220 to lubricate the movable scroll 210 and the fixed scroll 100, thereby realizing the lubrication of the moving pair.

[0179] It is worth noting that the compressor 200 includes but is not limited to a scroll compressor.

[0180] According to the third aspect of the present invention, there is provided a refrigeration device, comprising a stationary scroll 100 as provided in the first aspect or a compressor 200 as provided in the second aspect, and thus having all the beneficial technical effects of the stationary scroll 100 or the compressor 200, which will not be repeated here.

[0181] Among them, refrigeration equipment includes but is not limited to air conditioners.

[0182] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0183] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0184] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stationary vortex disk, characterized in that: include: A disk body, wherein the disk body is provided with an air intake port, and the air intake port is used to communicate with the outside; a stationary volute, disposed at one side of the disc body and forming an air suction channel with the disc body, wherein the air suction channel is connected to the air suction port, the air suction channel comprising a first air suction section and a second air suction section connected to each other, wherein the first air suction section is disposed closer to the air suction port than the second air suction section; Wherein, along the radial direction of the disc body, the width of the first suction section is greater than the width of the second suction section.

2. The stationary scroll according to claim 1, characterized in that: Along the radial direction of the disc body, the width d1 of the first suction section and the width d2 of the second suction section satisfy 0.01 mm ≤ d1 - d2 ≤ 0.2 mm.

3. The stationary scroll according to claim 1, characterized in that: Along the radial direction of the disc body, the static scroll comprises a first side wall and a second side wall which are arranged opposite to each other, the first side wall is located radially outside the second side wall, and the first side wall and the second side wall form the air suction channel; The first side wall extends along a first spiral line; and / or the second side wall extends along a second spiral line.

4. The stationary scroll according to claim 3, characterized in that: The first side wall includes a first channel wall located in the first air suction section, and a second channel wall located in the second air suction section, wherein the second channel wall is connected to the first channel wall; Wherein, along the radial direction of the disk body, the first channel wall is located outside the extension wall of the second channel wall and has a first distance between the first channel wall and the extension wall of the second channel wall.

5. The stationary scroll according to claim 4, characterized in that: The first interval H1 satisfies 0.01 mm≤H1≤0.1 mm.

6. The stationary scroll according to claim 4, characterized in that: The expansion angle β1 of the first channel wall and the expansion angle β2 of the second channel wall satisfy 10°≤β1-β2≤90°.

7. The stationary scroll according to claim 4, characterized in that: The second side wall includes a third channel wall located in the first air suction section, and a fourth channel wall located in the second air suction section, the third channel wall is connected to the fourth channel wall, and along the radial direction of the disk body, the first channel wall is located outside the third channel wall; Wherein, along the radial direction of the disk body, the third channel wall is located on the inner side of the extension wall of the fourth channel wall, and has a second distance between the third channel wall and the extension wall of the fourth channel wall.

8. The stationary scroll according to claim 7, characterized in that: The second interval H2 satisfies 0.01 mm≤H2≤0.1 mm.

9. The stationary scroll according to claim 7, characterized in that: The expansion angle α1 of the third channel wall and the expansion angle α2 of the fourth channel wall satisfy 10°≤α1-α2≤90°.

10. The stationary scroll according to claim 7, characterized in that: The first side wall further includes a first transition wall, and the first channel wall and the second channel wall are connected via the first transition wall; and / or The second side wall further includes a second transition wall, and the third channel wall is connected to the fourth channel wall via the second transition wall.

11. The stationary scroll according to claim 10, characterized in that: The first transition wall is configured as a first arcuate wall, and the first arcuate wall is tangent to the first channel wall and / or the second channel wall; and / or The second transition wall is configured as a second arc-shaped wall, and the second arc-shaped wall is tangent to the third channel wall and / or the fourth channel wall.

12. The stationary scroll according to any one of claims 3 to 11, characterized in that: The equation of the first helix is: x=-a×λ k ×cosλ-r1×cos(λ-arctan(k / λ)); y=a×λ k ×sinλ+r1×sin(λ-arctan(k / λ)); Among them, a is the coefficient, λ is the radian of the development angle, k is the polynomial index, and r1 is the eccentric radius.

13. The stationary scroll according to any one of claims 3 to 11, characterized in that: The equation of the second helix is: x=a×λ k ×cosλ-r2×cos(λ-arctan(k / λ)); y=-a×λ k ×sinλ+r2×sin(λ-arctan(k / λ)); Among them, a is the coefficient, λ is the radian of the development angle, k is the polynomial index, and r2 is the eccentric radius.

14. A compressor, characterized in that: include: The stationary scroll according to any one of claims 1 to 13; A movable scroll, the movable scroll comprising an end plate and a movable volute, the movable volute being arranged on a side of the end plate facing the fixed scroll and being insertable into the air intake passage, so that the movable scroll cooperates with the fixed scroll to form a compression chamber, and the compression chamber is communicated with the air intake port; Wherein, the movable scroll comprises a cantilever end away from the center of the end plate, and at least a part of the cantilever end is located in the first suction section.

15. A refrigeration device, characterized in that: include: The stationary scroll according to any one of claims 1 to 13; or The compressor of claim 14.

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