Scroll and compressor

Abstract

This invention discloses a scroll plate and a compressor. The scroll plate includes a stationary scroll plate and a moving scroll plate that mesh with each other. The moving scroll plate moves relative to the stationary scroll plate under the drive of an eccentric shaft to close or open the suction chamber. The stationary scroll plate and the moving scroll plate have a first meshing position and a second meshing position when closing the suction chamber. A first correction part is provided on the stationary scroll plate adjacent to the first meshing position. The first correction part has a third meshing position for the stationary scroll plate and the moving scroll plate to mesh with each other. On the movement trajectory of the moving scroll plate, the third meshing position leads the first meshing position. The scroll plate proposed in this invention can reduce the outflow of refrigerant in the suction chamber and improve the volume utilization rate of the suction chamber.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a scroll plate and compressor. Background Technology

[0002] A scroll compressor consists of a moving scroll 1 and a stationary scroll 2 with specific profiles meshing together. During the intake, compression, and exhaust processes, the stationary scroll is fixed to the frame, while the moving scroll, driven by an eccentric shaft and constrained by an anti-rotation mechanism, rotates in a small-radius plane around the center of the stationary scroll's base circle. Gas is drawn into the periphery of the stationary scroll, and as the eccentric shaft rotates, the gas is gradually compressed within several crescent-shaped compression chambers formed by the meshing of the moving and stationary scrolls, and then discharged through the exhaust port at the center of the stationary scroll.

[0003] For the existing scroll disk structure design, as the eccentric shaft rotation angle changes, after the compressor suction chamber is formed, its volume first increases with the increase of the eccentric shaft rotation angle, and at a certain position θ... m After that, its volume reaches its maximum. Then, as the eccentric shaft rotation angle increases, the intake chamber volume decreases instead, until the rotation angle θ... e The suction chamber is closed. Due to the decrease in the volume of the suction chamber, refrigerant gas flows out of the suction chamber. Therefore, at θ m ~θ e Within the specified range, the gas volume in the intake chamber of the scroll disk does not increase but rather decreases. The existing scroll disk profile design prevents the scroll disk from fully utilizing the volume of the intake chamber. Summary of the Invention

[0004] The main objective of this invention is to provide a scroll plate and compressor, which aims to solve the problem in the prior art where the scroll plate cannot fully utilize the volume of the suction chamber, resulting in refrigerant gas outflow.

[0005] The present invention proposes a scroll disk comprising a stationary scroll disk and a moving scroll disk that mesh with each other. The moving scroll disk is used for driving connection with an eccentric shaft. An air intake chamber is formed between the moving scroll disk and the stationary scroll disk. The moving scroll disk is used to move relative to the stationary scroll disk under the drive of the eccentric shaft to close or open the air intake chamber. The stationary scroll disk and the moving scroll disk have a first meshing position and a second meshing position when closing the air intake chamber.

[0006] A first correction part is provided on the stationary volute disk near the first engagement position. The first correction part has a third engagement position for the stationary volute disk and the moving volute disk to mesh with each other. On the movement trajectory of the moving volute disk, the third engagement position leads the first engagement position.

[0007] Optionally, a second correction part is provided on the moving scroll plate adjacent to the second engagement position; the second correction part has a fourth engagement position for the stationary scroll plate and the moving scroll plate to mesh with each other, and on the movement trajectory of the moving scroll plate, the fourth engagement position leads the second engagement position;

[0008] When the moving scroll plate engages with the first correction part, the stationary scroll plate engages with the second correction part.

[0009] Optionally, the moving scroll includes a first outer profile and a first inner profile, wherein the first outer profile includes a first center correction section, a first profile segment, and a first non-working section connected in sequence;

[0010] The first inner shape line includes a second shape line segment and a second center correction segment, and the first center correction segment is connected to the second center correction segment;

[0011] The moving scroll also includes a first arc-shaped line, the two ends of which are respectively connected to the first non-working section and the second type line segment;

[0012] The static vortex disk includes a second outer profile line and a second inner profile line. The second outer profile line includes a third center correction section, a third profile line segment, and a second non-working section connected in sequence.

[0013] The second inner shape line includes a fourth shape line segment and a fourth center correction segment, and the third center correction segment is connected to the fourth center correction segment;

[0014] The first correction unit is disposed in the second non-working section, and the second correction unit is disposed in the first non-working section;

[0015] The static vortex disk also includes a second arc-shaped line, wherein the end of the fourth type line segment away from the fourth center correction segment extends radially outward along the vortex disk to form the second arc-shaped line.

[0016] Optionally, the first correction part is integrally formed with the stationary volute, and / or the second correction part is integrally formed with the moving volute.

[0017] Optionally, the first correction portion is formed by the end of the second non-working segment near the third type line segment protruding outward along the radial direction of the scroll disk, and the second correction portion is formed by the end of the first non-working segment near the first type line segment protruding outward along the radial direction of the scroll disk.

[0018] Optionally, the first correction section includes a first connecting line and a first correction line that are interconnected, the end of the first connecting line away from the first correction line is connected to the second non-working segment, and the first correction line is connected to the third type line segment in an arc transition.

[0019] The second correction section includes a second connecting line and a second correction line that are interconnected. The end of the second connecting line away from the second correction line is connected to the first non-working segment, and the second correction line is connected to the first type of line segment in an arc transition.

[0020] Optionally, the first connecting line and / or the second connecting line can be an arc line, a straight line, a broken line, or a curve.

[0021] Optionally, the first correction line and the second correction line are set as arcs, and the radius of the first correction line is defined as R. foe The radius of the circle containing the first arc is R1, and the radius of rotation of the moving vortex is R2.

[0022] R foe =R1 + R2 + δ1, where δ1 is greater than 0;

[0023] Define the radius of the second correction line as R. ooe The radius of the circle containing the second arc is R3, where

[0024] R foe =R3+R2+δ2, δ2 is greater than 0.

[0025] Optionally, the central angle between the arcs of the first correction line and the second correction line is α, where...

[0026] α=θ e -θ m -δ θ ;

[0027] The θ m θ is the eccentric rotation angle when the volume of the intake chamber is at its maximum. e δ is the rotation angle of the eccentric shaft when the intake chamber is closed. θ It is a positive value.

[0028] Optionally, the first correction line satisfies:

[0029] y1=c1x1 2 +c2x1 4 ;

[0030] In the formula, the x1 axis is tangent to the third type of line segment, the y1 axis is perpendicular to the x1 axis and points to the outside of the vortex disk, and c1 and c2 are set as the first preset parameters; and / or,

[0031] The second correction line satisfies:

[0032] y2=c1x2 2 +c2x2 4 ;

[0033] In the formula, the x2 axis is tangent to the first type of line segment, the y1 axis is perpendicular to the x1 axis and points to the outside of the vortex disk, and c1 and c2 are set as the first preset parameters.

[0034] Optionally, the first correction line satisfies:

[0035] y3=c3x3 2 ;

[0036] In the formula, the x3 axis is tangent to the first type of line segment, the y3 axis is perpendicular to the x3 axis and points to the inner side of the vortex disk, and c3 is set as a second preset parameter; and / or

[0037] The second correction line satisfies:

[0038] y4=c3x4 2 ;

[0039] In the formula, the x4 axis is tangent to the third type of line segment, the y4 axis is perpendicular to the x4 axis and points to the inside of the vortex disk, and the c3 is set as the second preset parameter.

[0040] The present invention also proposes a compressor comprising the scroll plate described in any of the preceding claims.

[0041] The technical solution of this invention involves setting a first correction part on the stationary volute disk near the first engagement position, and the first correction part having a third engagement position for the stationary volute disk and the moving volute disk to mesh with each other. On the movement trajectory of the moving volute disk, the second engagement position precedes the first engagement position. Therefore, when the moving volute disk moves to the third engagement position before the second engagement position under the drive of the eccentric shaft, the moving volute disk meshes with the third engagement position, thereby prematurely closing the intake port of the intake chamber. Thus, when the rotation angle of the eccentric shaft is θ... m ~θ e During the process of the volume of the suction chamber decreasing within the range, the refrigerant placed in the suction chamber is prevented from flowing out in the reverse direction due to the decrease in the volume of the suction chamber, thus reducing the outflow of refrigerant from the suction chamber. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0043] Figure 1 This is a partial structural diagram of a scroll compressor in the prior art;

[0044] Figure 2for Figure 1 A cross-sectional view along the AA direction;

[0045] Figure 3 for Figure 1 A cross-sectional view along the BB direction;

[0046] Figure 4 for Figure 3 Enlarged view of section I;

[0047] Figure 5 for Figure 3 Enlarged view of section II;

[0048] Figure 6 This is a schematic diagram illustrating the volume change of the intake chamber formed between the moving and stationary volutes in the prior art.

[0049] Figure 7 This is a schematic diagram illustrating the refrigerant mass change in the suction chamber in existing technology.

[0050] Figure 8 This is a partial structural schematic diagram of the compressor of the present invention;

[0051] Figure 9 for Figure 8 A sectional view along the CC direction;

[0052] Figure 10 for Figure 9 Enlarged view of section II;

[0053] Figure 11 for Figure 9 Enlarged view of section I;

[0054] Figure 12 This is a schematic diagram of the structure of the moving vortex disk in another embodiment of the present invention;

[0055] Figure 13 for Figure 12 Enlarged view of point D in the middle.

[0056] Explanation of icon numbers:

[0057] label name label name 1 vortex disk 20 Static vortex disk 10 Moving scroll 21 Second outer shape line 11 First Outer Line <![CDATA[B f P fos ]]> Third center correction section <![CDATA[B o P oos ]]> First Central Correction Section <![CDATA[P fos P foe ]]> Type III line segment <![CDATA[P oos P ooe ]]> Type I line segment <![CDATA[P foe P fot ]]> Second non-working section <![CDATA[P ooe P oot ]]> First non-working section 22 Second inner profile line 12 First Inner Shape Line <![CDATA[P fis P fie ]]> Type IV line segment <![CDATA[P ois P oie ]]> Type II line segment <![CDATA[B f P fis ]]> Fourth Central Correction Section <![CDATA[B o P ois ]]> Second Central Correction Section 23 Second arc line <![CDATA[P oot P oie ]]> First arc line 40 Second Revision 30 First Revision Section 41 Second correction line 31 First Correction Line 42 Second connecting line 32 First connecting line 50 Inspiratory chamber

[0058] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0060] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0061] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0062] Reference Figures 1 to 7 The scroll compressor consists of a moving scroll 101 and a stationary scroll 202 with specific profiles meshing together. During the intake, compression, and exhaust processes, the stationary scroll 202 is fixed to the frame, while the moving scroll 102, driven by an eccentric shaft and constrained by an anti-rotation mechanism, rotates in a small-radius plane around the base circle center of the stationary scroll 202. Gas is drawn into the periphery of the stationary scroll 202, and as the eccentric shaft rotates, the gas is gradually compressed within several crescent-shaped compression chambers formed by the meshing of the moving and stationary scrolls 202, and then discharged through the exhaust port at the center of the stationary scroll 202.

[0063] During the operation of a scroll compressor, air intake is mainly accomplished by the intake chamber 50, and the sum of the volumes of the two intake chambers 50 is the compressor's displacement. For example... Figure 2 The suction chamber 50 shown is formed by the moving scroll 10 and the stationary scroll 20 as the outermost chamber. As the moving scroll 10 rotates, the volume of the suction chamber 50 increases, and the mass of the gas it contains increases. When the tail end of the profile enters the engagement, the chamber closes and the suction ends.

[0064] In the prior art, the moving scroll 10 and the stationary scroll 20 are composed of inner and outer profiles, respectively, such as... Figures 3 to 5 As shown, the outer profile of the moving scroll 10 typically consists of three segments, namely profile segment P.oos P ooe Central Correction Section B o P oos and non-working segment P ooe P oot The inner profile of the moving vortex 10 typically includes two segments, namely profile segment P. ois P oie and central correction segment B o P ois The outer profile of the static vortex disk 20 consists of three segments, namely profile segment P. fos P foe Central Correction Section B f P fos and non-working segment P foe P fot The inner profile of the static vortex disk 20 typically includes two segments, namely profile segment P. fis P fie and central correction segment B f P fis During the operation of the scroll disk 1, the moving scroll disk 10 and the stationary scroll disk 20 never mesh relative to each other during the non-working section.

[0065] Further reference Figure 3 The profile segment P of the outer profile of the moving vortex 10 oos P ooe Smooth transition along the profile segment to the non-working segment P ooe P oot The inner profile segment P of the moving vortex 10 ois P oie The non-working segment P of the outline is transitioned to the outer profile with a rounded chamfer. ooe P oot ; The profile segment P of the static vortex disk 20 fos P foe Smooth transition along the profile to the non-working section P foe P fot The inner profile segment P of the static vortex disk 20 fis P fie Then, a rounded chamfer is used to transition to the outside of the work area.

[0066] Please refer to Figure 6 and Figure 7 As the rotation angle of the eccentric shaft changes, after the compressor's suction chamber 50 is formed, the volume of the suction chamber 50 increases with the increase of the eccentric shaft rotation angle. When the rotation angle is θ... m At this point, the volume of the intake chamber 50 reaches its maximum. Then, as the rotation angle of the eccentric shaft continues to increase, the volume of the intake chamber 50 will actually decrease until the rotation angle of the eccentric shaft is θ. e When the intake chamber 50 is closed, point P on the inner profile of the moving scroll 10...oie Point P on the outer contour line of the static vortex disk 20 foe Meshing, that is, the first meshing position is point P on the inner profile of the moving scroll 10. oie Point P on the outer contour line of the static vortex disk 20 foe Point P on the outer contour line of the moving vortex disk 10 ooe Point P on the inner profile of the static vortex disk 20 fie The meshing, or second meshing position, is point P on the outer profile of the moving scroll 10. ooe Point P on the inner profile of the static vortex disk 20 fie However, due to the rotation angle of the eccentric axis at θ m to θ e Within this range, the volume of the intake chamber 50 will actually decrease. This will cause the refrigerant gas that originally filled the intake chamber 50 to be compressed, resulting in the refrigerant gas in the intake chamber 50 flowing out from both ends of the intake chamber 50, thus failing to fully utilize the volume of the intake chamber 50.

[0067] In the vortex disk 1 proposed in this invention, as follows: Figures 8 to 13 As shown, a first correction part 30 is provided on the stationary volute 20 near the first engagement position. The first correction part 30 has a third engagement position for the stationary volute 20 and the moving volute 10 to mesh with each other. On the movement trajectory of the moving volute 10, the third engagement position is ahead of the first engagement position.

[0068] Optionally, the rotation angle of the eccentric axis is θ. e The following explanation is based on the example where the stationary volute 20 and the moving volute 10 are engaged, and the intake chamber 50 is closed. Since a first correction part 30 is provided on the stationary volute 20 near the first engagement position, the third engagement position of the moving volute 10 precedes the first engagement position on its movement trajectory. Therefore, the actual rotation angle of the eccentric shaft is θ. e When the angle is -n (where n is a positive number), the moving vortex 10 engages with the first correction part 30, effectively sealing the inlet end (front end) of the intake chamber 50 in advance. As the eccentric shaft continues to rotate to a rotation angle of θ... e During the process of completely sealing the suction chamber 50, since the front opening of the suction chamber 50 has been sealed, the refrigerant gas in the suction chamber 50 will not be compressed due to the reduction in the volume of the suction chamber 50 and will not flow out in reverse from the front opening. This reduces the outflow of refrigerant from the suction chamber 50 to a certain extent and improves the volume utilization rate of the suction chamber 50.

[0069] Furthermore, when in the third engagement position, the chamfer of the moving scroll 10 engages with point A on the first correction part 30. As a preferred embodiment, this is achieved by reasonably setting point A and point P on the outer profile of the stationary scroll 20.foe The line connecting the eccentric shaft and the chamfered arc of the moving scroll 10 are matched so that the moving scroll 10 is always engaged with the first correction part 30 during the process of the eccentric shaft driving the moving scroll 10 from the third engagement position to the first engagement position, thus ensuring the reliability of the scroll 1. The curve of the first correction part 30 is not limited here.

[0070] In one embodiment, such as Figure 9 and Figure 10 As shown, a second correction part 40 is provided on the moving scroll 10 adjacent to the second engagement position; the second correction part 40 has a fourth engagement position for the stationary scroll 20 and the moving scroll 10 to mesh with each other, and on the movement trajectory of the moving scroll 10, the fourth engagement position leads the second engagement position; when the moving scroll 10 meshes with the first correction part 30, the stationary scroll 20 meshes with the second correction part 40.

[0071] Optionally, the second correction portion 40 is used to close the rear end opening of the intake chamber 50 and is positioned ahead of the second engagement position. Based on the previous embodiment, when the rotation angle of the eccentric shaft is θ... e When the angle is -n (where n is a positive number), the rounded chamfered portion at the end of the moving scroll 10 engages with the first correction part 30, prematurely sealing the inlet end (front end) of the intake chamber 50. Correspondingly, at this time, the rounded chamfered portion of the stationary scroll 20 engages with the second correction part 40 on the moving scroll 10, prematurely sealing the rear end of the intake chamber 50. Thus, by reasonably configuring the value of n, for example, when n = θ m -θ e As the rotation angle of the eccentric shaft changes, after the compressor's suction chamber 50 is formed, the volume of the suction chamber 50 increases with the increase of the eccentric shaft rotation angle. When the rotation angle of the eccentric shaft reaches θ... m When its volume reaches its maximum, and the moving volute 10 engages with the first correction part 30 on the stationary volute 20, while the stationary volute 20 engages with the second correction part 40 on the moving volute 10, the intake chamber 50 is in a closed state, achieving the purpose of prematurely closing the intake chamber 50. Thus, when the subsequent rotation angle of the eccentric shaft is θ... m to θ e Within this range, the volume of the suction chamber 50 remains unchanged, thereby reducing or even eliminating refrigerant outflow from the suction chamber 50 and achieving the technical effect of fully utilizing the volume of the suction chamber 50. This allows for a 2%–3% increase in compressor displacement without increasing the required space. Alternatively, equivalently, the compressor volume can be reduced by 2%–3% while maintaining the same displacement.

[0072] In one embodiment, such as Figure 9As shown, the moving scroll 10 includes a first outer profile 11 and a first inner profile 12. The first outer profile 11 includes a first center correction segment B connected in sequence. o P oos Type I line segment P oos P ooe and the first non-working segment P ooe P oot The first inner shape line 12 includes the second shape line segment P. ois P oie Second center correction segment B o P ois The first central correction segment B o P oos With the second center correction segment B o P ois Connection; the moving scroll 10 also includes a first arc-shaped line P oot P oie The first arc line P oot P oie The two ends are respectively connected to the first non-working segment P ooe P oot The second type of line segment P ois P oie Connection, i.e., the first arc line P oot P oie This is equivalent to the transition line connecting the first inner profile line 12 and the first outer profile line 11 of the moving vortex disk 10 in an arc shape. In this embodiment, the first arc line P oot P oie Referring to existing technology, the first arc-shaped line P can be configured as an arc to facilitate its production and processing. In other embodiments, the first arc-shaped line P oot P oie It can also be set as a parabola or a higher-order curve, etc., which is not limited here, as long as it can be used to engage with the first correction part 30 to close the intake chamber 50 in advance.

[0073] Furthermore, the static vortex disk 20 includes a second outer profile line 21 and a second inner profile line 22, the second outer profile line 21 including a third center correction segment B connected in sequence. f P fos Type III line segment P fos P foe and the second non-working segment P foe P fot The second inner shape line 22 includes the fourth shape line segment P. fis P fie and the fourth central correction section B f P fis The third center correction segment B f P fosWith the fourth center correction segment B f P fis Connection; First correction unit 30B o P oos Set in the second non-working segment P foe P fot Near the second type of line segment P ois P oie The second correction unit 40 is located in the first non-working segment P. ooe P oot Close to the first type of line segment P oos P ooe The position of the static vortex disk 20; the static vortex disk 20 also includes a second arc-shaped line 23, and the fourth type line segment P fis P fie Far from the fourth center correction segment B f P fis One end of the second arc-shaped line 23 extends radially outward along the vortex disk 1 to form the second arc-shaped line 23. In this embodiment, the second arc-shaped line 23 is set according to the prior art and will not be modified here. That is, the second arc-shaped line 23 is set as an arc, which facilitates its production and processing, and can be produced without changing its processing technology. In other embodiments, the second arc-shaped line 23 can be set as a parabola or a higher-order arc, as long as it cannot engage with the second correction part 40 in advance to close the intake chamber 50 in advance, and is not limited here.

[0074] In this embodiment, the inner and outer profiles of the moving vortex 10 and the stationary vortex 20 refer to the prior art and are not limited thereto. For example, the first inner profile 12 (inner wall of the moving vortex) and the first outer profile 11 (outer wall of the moving vortex) of the moving vortex are respectively formed by involutes with unequal base circle radii to constitute the basic curve of the vortex. According to the geometric characteristics of the involute, it can be processed by the generative method on ordinary processing equipment. It has low requirements for processing technology and equipment precision, and the processing cost is low.

[0075] In one embodiment, the first correction part 30 is integrally formed with the stationary volute 20, and / or the second correction part 40 is integrally formed with the moving volute 10.

[0076] Optionally, the first correction part 30 and the stationary volute 20 are integrally formed. This allows the first correction part 30 to be manufactured together with the stationary volute 20, reducing manufacturing difficulty and eliminating the need for subsequent welding to fix the first correction part 30 to the stationary volute 20, resulting in a more reliable structure. Furthermore, the second correction part 40 and the moving volute 10 are integrally formed, further simplifying the assembly process of the moving volute 10 and reducing the overall manufacturing difficulty of the volute 1. Alternatively, it is also feasible to have the first correction part 30 and the stationary volute 20 integrally formed, while the second correction part 40 and the moving volute 10 are manufactured separately and then assembled and fixed by welding or bonding; these options are not limited to any particular method.

[0077] In one embodiment, the second non-working segment P foe P fot Near the third type line segment P fos P foe One end of the first correction section 30 is formed by protruding outward along the radial direction of the scroll disk 1, and the first non-working section P ooe P oot Close to the first type of line segment P oos P ooe One end of the spiral disk 1 protrudes outward to form the second correction part 40.

[0078] Optionally, the second non-working segment P foe P fot Near the third type line segment P fos P foe The first correction part 30 is formed by protruding outward along the radial direction of the vortex disk 1. The cross-sectional shape of the first correction part 30 is convex or pointed, etc. The first correction part 30 and the second non-working section P are located at the same position. foe P fot The one-piece molding design facilitates the machining and fabrication of the stationary volute 20. The first segment P of the actuating disc... oos P ooe The third type line segment P of the static vortex disk 20 fos P foe Defined as the working section, it is equivalent to the introduction of a correction section in the transition zone from the working section to the non-working section of the scroll profile to reduce or even prevent refrigerant from flowing out of the suction chamber 50.

[0079] Accordingly, the first non-working segment P ooe P oot Near the first type line segment P oos P ooeOne end of the device is provided with a second correction part 40. The cross-sectional shape of the second correction part 40 can be set to a triangular shape. Its arc surface facing the second arc line 23 is recessed and used to engage with the second arc line to close the rear end of the air intake chamber 50 in advance, thereby achieving the purpose of closing the air intake chamber 50 in advance.

[0080] In one embodiment, the first correction section 30 includes a first connecting line 32 and a first correction line 31 connected to each other, wherein the end of the first connecting line 32 away from the first correction line 31 is connected to the second non-working segment P. foe P fot Connect the first correction line 31 with the third type line segment P. fos P foe Arc-shaped transition connection; the second correction section 40 includes a second connecting line 42 and a second correction line 41 that are interconnected, the end of the second connecting line 42 away from the second correction line 41 is connected to the first non-working segment P. ooe P oot Connect the second correction line 41 to the first type line segment P. oos P ooe Arc-shaped transition connection.

[0081] Optionally, the surface of the first correction section 30 facing the moving volute 10 is defined as a first connecting line 32 and a first correction line 31. The first correction line 31 is closer to the first arcuate line P. oot P oie The first correction line 31 is set to be an arc-shaped line, with one end used to connect to the first connecting line 32, and the other end used to connect to the third type line segment P of the stationary vortex disk 20. fos P foe endpoint P foe Transitional connection, or connection with type III line segment P fos P foe The extension line is used for transition connection, thus ensuring that the eccentric shaft drives the moving scroll 10 to rotate, so that during the process of the moving scroll 10 moving from the second engagement position to the first engagement position, that is, the rotation angle of the eccentric shaft is θ. m to θ e Within this angular range, the first arc P oot P oie It can always engage with the first correction line 31, and the second correction line 41 always engages with the second arc line 23; so that the volume inside the suction chamber 50 does not change, thereby reducing or even avoiding the outflow of refrigerant inside the suction chamber 50, achieving the technical effect of making full use of the volume of the suction chamber 50, and at the same time, reducing the friction between the moving scroll 10 and the first correction part 30 and the second correction part 40.

[0082] In one embodiment, the first connecting line 32 and / or the second connecting line 42 are configured as an arc line, or a straight line, or a broken line, or a curve.

[0083] Understandably, the first connecting line 32 is used to connect one end of the first correction line 31 to the second non-working segment P. foe P fot The connection line 32 serves only as a transitional link and does not engage with the moving scroll plate 10. Therefore, it can be a straight line, a broken line, a curve, a wavy line, or any other shape, without limitation. In this embodiment, considering the manufacturing difficulty, the first connecting line 32 is set as a straight line for illustration. Since it does not engage with the moving scroll plate 10, its size can be reduced while ensuring structural stability, thus saving costs and improving reliability. Therefore, the length of the first connecting line 32 can be set relatively short. The first connecting line 32 and the second non-working section P... foe P fot The included angle between them is an obtuse angle, preferably between 120° and 150°, which ensures the overall structural strength of the first correction part 30 while keeping its space size relatively small. Furthermore, the arrangement of the second connecting line 42 can refer to the first connecting line 32, and will not be described again here.

[0084] In one embodiment, both the first correction line 31 and the second correction line 41 are set as arcs, and the radius of the first correction line 31 is defined as R. foe The first arc line P oot P oie The radius of the circle is R1, and the radius of rotation of the moving vortex 10 is R2, wherein...

[0085] R foe =R1+R2+δ1, where δ1 is a positive value greater than 0;

[0086] Define the radius of the second correction line 41 as R. ooe The radius of the circle containing the second arc 23 is R3, where

[0087] R foe =R3+R2+δ2, δ2 is greater than 0.

[0088] With the above settings, it is possible to ensure that the intake chamber 50 can be closed in advance while avoiding collision between the moving scroll plate 10 and the stationary scroll plate 20 during movement.

[0089] Based on the previous embodiment, the central angle corresponding to the arc length of the first correction line 31 and the second correction line 41 is defined as α, where α = θ e -θ m -δ θ In the formula, θ mThe θ is the eccentric rotation angle when the volume of the intake chamber 50 is at its maximum. e In the prior art, without the addition of the first correction part 30 and the second correction part 40, the eccentric axis rotation angle δ when the intake chamber 50 is closed is... θ It is a positive value. In this way, the area requirement of the air passage of the air chamber 50 can be met while closing the air chamber 50 in advance.

[0090] In yet another embodiment, the first correction line 41 satisfies:

[0091] y1=c1x1 2 +c2x1 4 ;

[0092] In the formula, the x1 axis and the third type line segment P fos P foe Tangent to each other, the y1 axis is perpendicular to the x1 axis and points to the outside of the vortex disk 1, and c1 and c2 are set to the first preset parameters; and / or,

[0093] The second correction line 41 satisfies:

[0094] y2=c1x2 2 +c2x2 4 ;

[0095] In the formula, the x2 axis and the first type of line segment P oos P ooe Tangent to each other, the y1 axis is perpendicular to the x1 axis and points to the outside of the vortex disk 1, and c1 and c2 are set to the first preset parameters.

[0096] Optionally, in this embodiment, both the first correction line 31 and the second correction line 41 are set as high-order curves, and c1 and c2 are parameters to be determined. Their specific values ​​can be determined through actual product design and are not limited here. For example, in other embodiments, the first correction line 31 is set as a high-order curve, satisfying the above formula, and the first arc line P... oot P oie The first correction line 41 is set to an arc shape. Correspondingly, the second arc line 23 on the stationary vortex disk 20 is designed to be compatible with the arc line. This ensures that when the first correction line 31 engages with the first arc line, the second arc line 23 also engages with the second correction line 41. No specific shape is limited here.

[0097] In another embodiment, the first correction line 31 satisfies:

[0098] y3=c3x3 2 ;

[0099] In the formula, such as Figure 12 and Figure 13As shown, the x3 axis and the first type of line segment P oos P ooe Tangent, the y3 axis is perpendicular to the x3 axis and points to the inside of the scroll disk 1, and c3 is set to the second preset parameter; and / or

[0100] The second correction line 41 satisfies:

[0101] y4=c3x4 2 ;

[0102] In the formula, the x4 axis and the third type line segment P fos P foe Tangent to each other, the y4 axis is perpendicular to the x4 axis and points to the inside of the vortex disk 1, and c3 is set to the second preset parameter;

[0103] Optionally, in this embodiment, both the first correction line 31 and the second correction line 41 can be set as parabolas or spline curves. The specific value of c3 can be determined through actual product design and is not limited here. It should be noted that the first correction line 31 can also be designed as a parabola, and the second correction line 41 can be set as a curve of other shapes. For example, the first correction line 31 can be set as a parabola that satisfies the above formula, and the first arc line P oot P oie The first correction line 31 is set to be an arc shape that meshes with the first correction line 31; the second correction line 41 is set to be an arc line. Correspondingly, the second arc line 23 on the stationary vortex disk 20 is designed to be adapted to the arc line, so that when the first correction line 31 meshes with the first arc line, the second arc line 23 meshes with the second correction line 41. The specific shape is not limited here.

[0104] The present invention also proposes a compressor, which includes a scroll plate 1. The specific structure of the scroll plate 1 is as described in the above embodiments. Since the compressor adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0105] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A scroll disk comprising a stationary scroll disk and a moving scroll disk meshing with each other, the moving scroll disk being driven to connect with an eccentric shaft, an air intake chamber being formed between the moving scroll disk and the stationary scroll disk, the moving scroll disk being used to move relative to the stationary scroll disk under the drive of the eccentric shaft to close or open the air intake chamber, the stationary scroll disk and the moving scroll disk having a first meshing position and a second meshing position when closing the air intake chamber; characterized in that... A first correction part is provided on the stationary volute disk near the first engagement position. The first correction part has a third engagement position for the stationary volute disk and the moving volute disk to mesh with each other. On the movement trajectory of the moving volute disk, the third engagement position leads the first engagement position. A second correction part is provided on the moving scroll plate near the second engagement position; the second correction part has a fourth engagement position for the stationary scroll plate and the moving scroll plate to mesh with each other, and on the movement trajectory of the moving scroll plate, the fourth engagement position leads the second engagement position; When the moving scroll plate engages with the first correction part, the stationary scroll plate engages with the second correction part; The moving scroll includes a first outer profile and a first inner profile. The first outer profile includes a first center correction section, a first profile segment, and a first non-working section connected in sequence. The first inner profile includes a second profile segment and a second center correction section, and the first center correction section is connected to the second center correction section. The moving scroll also includes a first arc line, and the two ends of the first arc line are respectively connected to the first non-working section and the second profile segment. The static vortex disk includes a second outer profile line and a second inner profile line. The second outer profile line includes a third center correction section, a third profile line segment, and a second non-working section connected in sequence. The second inner profile line includes a fourth profile line segment and a fourth center correction section. The third center correction section is connected to the fourth center correction section. The first correction unit is disposed in the second non-working section, and the second correction unit is disposed in the first non-working section; The static vortex disk also includes a second arc-shaped line, wherein the end of the fourth type line segment away from the fourth center correction section extends outward along the radial direction of the vortex disk to form the second arc-shaped line; The first correction portion is formed by the second non-working segment protruding outward along the radial direction of the scroll plate at one end near the third type of line segment, and the second correction portion is formed by the first non-working segment protruding outward along the radial direction of the scroll plate at one end near the first type of line segment.

2. The scroll disk as described in claim 1, characterized in that, The first correction part is integrally formed with the stationary volute, and / or the second correction part is integrally formed with the moving volute.

3. The scroll disk as described in claim 1, characterized in that, The first correction section includes a first connecting line and a first correction line that are interconnected. The end of the first connecting line away from the first correction line is connected to the second non-working segment. The first correction line is connected to the third type line segment in an arc transition. The second correction section includes a second connecting line and a second correction line that are interconnected. The end of the second connecting line away from the second correction line is connected to the first non-working segment, and the second correction line is connected to the first type of line segment in an arc transition.

4. The scroll disk as described in claim 3, characterized in that, The first connecting line and / or the second connecting line are set as a straight line, a broken line, or a curve.

5. The scroll disk as described in claim 3, characterized in that, The first correction line and the second correction line are arranged as circular arcs, the radius of the first correction line is R foe , the radius of the circle where the first arc line is located is R1, and the rotating radius of the orbiting scroll is R2. R foe = R1+ R2+ δ1, δ1 being greater than 0; the radius of the second correction line is defined as R ooe the radius of the circle on which the second arcuate line lies is R3, wherein R ooe =R3+R2+δ2,δ2>0.

6. The scroll disk as described in claim 5, characterized in that, The central angle between the arcs of the first correction line and the second correction line is α, where... α=θ e -θ m -d θ ; The θ m θ is the angle of rotation of the eccentric shaft when the volume of the intake chamber is at its maximum. e δ is the rotation angle of the eccentric shaft when the intake chamber is closed. θ It is a positive value.

7. The scroll disk as described in claim 3, characterized in that, The first correction line satisfies: y1=c1x1 2 +c2x1 4 ; In the formula, the x1 axis is tangent to the third type of line segment, the y1 axis is perpendicular to the x1 axis and points to the outside of the vortex disk, and c1 and c2 are set as the first preset parameters; and / or, The second correction line satisfies: y2=c1x2 2 +c2x2 4 ; In the formula, the x2 axis is tangent to the first type of line segment, the y2 axis is perpendicular to the x2 axis and points to the outside of the vortex disk, and c1 and c2 are set as the first preset parameters.

8. The scroll disk as described in claim 3, characterized in that, The first correction line satisfies: y3 = c3x3 2 ; In the formula, the x3 axis is tangent to the first type of line segment, the y3 axis is perpendicular to the x3 axis and points to the inner side of the vortex disk, and c3 is set as a second preset parameter; and / or The second correction line satisfies: y4 = c3x4 2 ; In the formula, the x4 axis is tangent to the third type of line segment, the y4 axis is perpendicular to the x4 axis and points to the inside of the vortex disk, and the c3 is set as the second preset parameter.

9. A compressor, characterized in that, Including the vortex disk as described in any one of claims 1-8.

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