CN113404692B

CN113404692B - Vortex disk sealing structure, vortex compressor and air conditioner

Info

Publication number: CN113404692B
Application number: CN202110851573.5A
Authority: CN
Inventors: 魏会军; 卢浩; 陈肖汕; 杨帆
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-07-15
Anticipated expiration: 2041-07-27
Also published as: CN113404692A

Abstract

The present disclosure provides a scroll disk sealing structure, a scroll compressor and an air conditioner, the scroll disk sealing structure includes: the scroll compressor comprises a first scroll, a second scroll and a sealing element, wherein a groove is formed in the end face of a scroll wrap, a barrier piece is arranged at an opening of the groove, and the barrier piece partially blocks the opening to form a notch; the sealing element comprises a first sealing part and a second sealing part, the first sealing part is accommodated in the groove, the first sealing part can be opposite to the blocking piece to form sealing, the second sealing part extends out of the notch, and the end face of the second sealing part can be opposite to the bottom face of the second scroll plate to form sealing or the end face of the second sealing part can be opposite to the bottom face of the first scroll plate to form sealing. According to the sealing strip, leakage caused by axial clearance is greatly reduced, the volumetric efficiency of the compressor is improved, the stability of the sealing strip is improved, and the problem that the sealing strip cannot float or only float partially or cannot be attached to the side wall of the groove all the time to cause leakage is solved.

Description

Vortex disk sealing structure, vortex compressor and air conditioner

Technical Field

The disclosure relates to the technical field of compressors, in particular to a vortex disc sealing structure, a vortex compressor and an air conditioner.

Background

In a scroll compressor, gas leakage between scroll plates can greatly reduce the volumetric efficiency of the machine, and the internal leakage mainly comprises two forms of tangential leakage through a radial clearance and radial leakage through an axial clearance. The existing mainstream axial sealing mode is that a sealing groove is formed in the end face of a scroll wrap, a sealing strip is installed in the sealing groove, gas enters a space between the bottom surfaces of the grooves to enable the sealing strip to float, and axial sealing is carried out through contact between a protruding part of the sealing strip and the bottom of a scroll plate. Namely: this sealing is not stable enough; or adopt sealing strip cross sectional dimension to be less than the cross sectional dimension of seal groove, when the compressor at the operation in-process, make the sealing strip hug closely the lateral wall of seal groove to with the contact of another lateral wall of seal groove bottom and seal groove, carry out axial seal through the bulge and the contact of vortex disk bottom of sealing strip, this kind of mode can effectively avoid the sealing strip card can't float in the inslot, but the compressor operation in-process, can't guarantee all the time that the sealing strip hugs closely one side lateral wall of seal groove, promptly: in the operation process, the sealing strip can not be always tightly attached to one side wall, so that leakage is caused.

Because the technical problems that the sealing strip cannot float or only can float partially or cannot be always attached to the side wall of the groove to cause leakage, the sealing effect is poor and the like exist in the scroll compressor in the prior art, the scroll compressor and the air conditioner are researched and designed according to the disclosure.

Disclosure of Invention

Therefore, the technical problem to be solved by the present disclosure is to overcome the defect that the sealing strip of the scroll compressor in the prior art cannot float or only float a part of the sealing strip or cannot be always attached to the groove side wall to cause leakage and have poor sealing effect, so as to provide a scroll sealing structure, a scroll compressor and an air conditioner.

In order to solve the above problems, the present disclosure provides a scroll sealing structure, which includes:

the scroll compressor comprises a first scroll, a second scroll and a sealing piece, wherein a groove is formed in the end surface of a first scroll wrap of the first scroll and/or the end surface of a second scroll wrap of the second scroll, a blocking piece is arranged at the opening of the groove, and the blocking piece partially blocks the opening to form a notch;

the sealing element comprises a first sealing part and a second sealing part, the first sealing part is accommodated in the groove, the first sealing part can be opposite to the blocking piece to form sealing, the second sealing part extends out of the gap, and the end face of the second sealing part can be opposite to the bottom face of the second scroll plate to form sealing or the end face of the second sealing part can be opposite to the bottom face of the first scroll plate to form sealing.

In some embodiments, when the groove is opened on the first wrap end surface of the first scroll, the end surface of the second seal portion may be opposed to the bottom surface of the second scroll and a seal may be formed therebetween;

when the groove is formed in the second scroll lap end surface of the second scroll lap, the end surface of the second seal portion can be opposed to the bottom surface of the first scroll lap and a seal can be formed therebetween.

In some embodiments, the first seal portion meets the second seal portion and forms a stepped surface where the second seal portion has a width < a width of the first seal portion in a cross section passing through an axis of the first scroll or the second scroll, the stepped surface being located on the first seal portion, the stepped surface being capable of opposing the barrier and forming a seal.

In some embodiments, in a cross section passing through an axis of the first scroll or the second scroll, a width of the notch < a width of the step surface, and a width of the second seal portion < a width of the notch.

In some embodiments, in a cross section passing through an axis of the first scroll or the second scroll, a width of the first seal portion < a width of the groove.

In some embodiments, the barrier includes a first projection having one end attached to one side wall of the recess and another end projecting toward the other side wall of the recess, and a second projection having one end attached to the other side wall of the recess and another end projecting toward the first projection, with the gap defined between the first projection and the second projection.

In some embodiments, a first gas groove is provided on an end surface of the first seal portion facing a groove bottom of the groove; and/or a second gas groove is arranged on the side surface of the first sealing part facing the side wall of the groove; and/or a preset distance is reserved between the end face, facing the groove bottom of the groove, of the first sealing part and the groove bottom.

In some embodiments, when included, the first gas groove extends along the direction of extension of the wrap; when the second gas groove is included, the number of the second gas grooves is multiple, and the multiple second gas grooves are arranged at intervals in the extending direction of the scroll wrap.

In some embodiments, the groove extends along the direction of extension of the wrap in which it is disposed, and the barrier also extends along the direction of extension of the groove.

In some embodiments, the grooves are semi-circular grooves provided in a cross section of semicircular shape at the head end and the tail end in the extending direction of the scroll wrap; and/or the front end and the tail end of the groove along the extension direction of the scroll wrap are not provided with the baffle pieces.

In some embodiments, the first scroll is a orbiting scroll and the second scroll is a fixed scroll, and the seal is made of a flexible material.

In some embodiments, the scroll compressor further comprises a first compensation member and a first elastic member, the first elastic member is connected to the second sealing portion, the other end of the first elastic member is connected to one side surface of the first compensation member, and the other side surface of the first compensation member can abut against the bottom surface of the second scroll or the bottom surface of the first scroll to form a seal.

In some embodiments, the first resilient member is a spring; and/or a first accommodating groove is formed in the end face of the second sealing part, and one end of the first elastic piece is arranged in the first accommodating groove; and/or the first compensation piece is of a flexible structure.

In some embodiments, the sealing device further includes a second compensating member and a second elastic member, the second elastic member is connected to the step surface of the first sealing portion, the other end of the second elastic member is connectable to one side surface of the second compensating member, and the other side surface of the second compensating member is capable of abutting against the barrier member to form a seal.

In some embodiments, the second resilient member is a spring; and/or a second accommodating groove is formed in the step surface, and one end of the second elastic piece is arranged in the second accommodating groove; and/or the second compensation piece is of a flexible structure.

The present disclosure also provides a scroll compressor including the scroll seal structure of any one of the preceding.

The present disclosure also provides an air conditioner including the scroll compressor of any one of the preceding claims.

The utility model provides a pair of pump body structure, scroll compressor and air conditioner have following beneficial effect:

the end face of the scroll tooth of one scroll disk is provided with a groove, the opening of the groove is provided with a notch, the first sealing part of a sealing element is accommodated in the groove, a first seal can be formed by matching the first sealing part with a blocking part, a second seal can be formed by matching the second sealing part with the bottom surface (the bottom of the scroll tooth) of the other scroll disk oppositely and is sealed by contacting with a sealing groove and the bottom of the scroll disk respectively, the leakage caused by axial clearance is greatly reduced, the volumetric efficiency of a compressor is improved, the stability of the sealing strip is improved, and the problem that the sealing strip cannot float or only float a part of the sealing strip or cannot be attached to the side wall of the groove all the time to cause leakage is solved; when the compressor runs, because a large enough gap is left between the sealing rack and the sealing groove, the floating sealing of the rack is stable, and the sealing property between the stepped sealing strip and the sealing groove is greatly improved; the soft rack is preferably adopted, so that the requirements of racks under different vortex tooth profile lengths can be met, and the universality of the racks is greatly improved; the rack is made into a shape with a step cross section, and two end faces of the step are respectively contacted with the sealing groove and the bottom of the vortex disc for sealing; the through hole arranged below the sealing strip can reduce the friction coefficient between the vortex disc and the sealing strip, reduce the loss and improve the compression efficiency; moreover, the sealing compensation mode under two kinds of different circumstances has been adopted for the machining error of driving disk and quiet dish seal groove can be compensated, has improved the processing fault-tolerant rate greatly, reduces the processing cost.

Drawings

Fig. 1 is a bottom perspective view of a scroll plate (fixed scroll) of a scroll compressor of the present disclosure;

FIG. 2 is an enlarged view of a portion of the scroll wrap of FIG. 1;

FIG. 3 is a perspective view of the seal of FIG. 1;

FIG. 4 is a longitudinal cross-sectional view of the seal of FIG. 1;

FIG. 5 is a longitudinal cross-sectional view of a first sealing mode of the scroll and seal cooperation of the present disclosure;

FIG. 6 is a longitudinal cross-sectional view of a second sealing mode of the scroll and seal cooperation of the present disclosure;

FIG. 7 is a longitudinal cross-sectional view of a third sealing mode of the scroll and seal cooperation of the present disclosure;

FIG. 8 is an exploded view of a first compensation mode of the seal of the present disclosure;

FIG. 9 is an exploded view of a second compensation mode of the seal of the present disclosure;

fig. 10 is a partially enlarged view of a compensation mode of the present disclosure.

The reference numerals are represented as:

1. a first scroll; 11. a first scroll wrap end face; 2. a second scroll; 21. a second scroll wrap end face; 3. a groove; 31. a notch; 32. the bottom of the tank; 33. a groove head; 34. a groove tail; 4. a barrier; 41. a first protruding portion; 42. a second protruding portion; 5. a seal member; 51. a first seal portion; 52. a second sealing part; 53. a step surface; 54. a first gas tank; 55. a second gas tank; 61. a first compensation member; 62. a second compensator; 71. a first elastic member; 72. a second elastic member; 81. a first gap; 82. a second gap.

Detailed Description

As shown in fig. 1-10, the present disclosure provides a scroll sealing structure comprising:

the scroll compressor comprises a first scroll 1, a second scroll 2 and a sealing element 5, wherein a groove 3 is arranged on a first scroll wrap end surface 11 of the first scroll 1 and/or a second scroll wrap end surface 21 of the second scroll 2, a baffle 4 is arranged at an opening of the groove 3, and the baffle 4 partially blocks the opening to form a notch 31;

the sealing element 5 comprises a first sealing part 51 and a second sealing part 52, the first sealing part 51 is accommodated in the groove 3, the first sealing part 51 can be opposite to the barrier member 4 and form a seal, the second sealing part 52 extends out of the notch 31, and the end surface of the second sealing part 52 can be opposite to the bottom surface of the second scroll 2 and form a seal, or the end surface of the second sealing part 52 can be opposite to the bottom surface of the first scroll 1 and form a seal.

The end face of the scroll tooth of one scroll disk is provided with a groove, the opening of the groove is provided with a notch, the first sealing part of a sealing element is accommodated in the groove, a first seal can be formed by matching the first sealing part with a blocking part, a second seal can be formed by matching the second sealing part with the bottom surface (the bottom of the scroll tooth) of the other scroll disk oppositely and is sealed by contacting with a sealing groove and the bottom of the scroll disk respectively, the leakage caused by axial clearance is greatly reduced, the volumetric efficiency of a compressor is improved, the stability of the sealing strip is improved, and the problem that the sealing strip cannot float or only float a part of the sealing strip or cannot be attached to the side wall of the groove all the time to cause leakage is solved; when the compressor runs, because a large enough clearance is left between the sealing rack and the sealing groove, the rack is floated and sealed stably, and the sealing property between the stepped sealing strip and the sealing groove is greatly improved.

The sealing strip has the advantages that 1, the stability of the sealing strip is improved, the problem that the sealing strip cannot float or only can float a part of the sealing strip is avoided, the leakage generated by the axial clearance between the movable disc and the static disc is reduced, and the volumetric efficiency of the compressor is improved; 2. by applying the soft rack, the requirements of the rack under different vortex tooth profile line lengths can be met, and the universality of the rack is greatly improved; 3. the sealing compensation modes under two different conditions are adopted, so that the processing fault tolerance rate of the movable vortex disc and the fixed vortex disc is greatly improved, and the scientific research cost is reduced; 4. and a gas channel (a first gas groove 54) is formed below the sealing strip, so that the friction coefficient between the scroll plate and the sealing strip is effectively reduced, the power loss of the compressor is reduced, and the compression efficiency is improved.

In some embodiments, when the groove 3 is opened on the first wrap end surface 11 of the first scroll 1, the end surface of the second seal portion 52 can be opposed to the bottom surface of the second scroll 2 and a seal can be formed therebetween;

when the groove 3 is provided in the second wrap end surface 21 of the second scroll 2, the end surface of the second seal portion 52 can be opposed to the bottom surface of the first scroll 1 and a seal can be formed therebetween.

This is a preferred configuration of the present disclosure, that is, the groove can be formed on the wrap end surface of the first scroll, and also can be formed on the wrap end surface of the second scroll, and when it is formed on the wrap end surface of the first scroll, a seal can be formed between the second seal portion and the wrap bottom surface of the second scroll; when the first seal portion is formed on the wrap end surface of the second scroll, a seal can be formed between the first seal portion and the wrap bottom surface of the first scroll. The first scroll being preferably

In some embodiments, the first scroll 1 is preferably a orbiting scroll and the second scroll 2 is preferably a fixed scroll. The sealing element and the groove structure can form good sealing between the tooth top of the movable scroll and the tooth bottom of the fixed scroll, and can also form good sealing between the tooth top of the fixed scroll and the tooth bottom of the movable scroll. The seal 5 is made of a flexible material. Preferably, a soft rack is adopted, the requirements of racks under different vortex tooth profile lengths can be met, and the universality of the rack is greatly improved.

In some embodiments, the first sealing portion 51 is connected to the second sealing portion 52, and a step surface 53 is formed at the connection position, in a cross section passing through the axis of the first scroll 1 or the second scroll 2, the width of the second sealing portion 52 is smaller than the width of the first sealing portion 51, the step surface 53 is located on the first sealing portion 51, and the step surface 53 can be opposite to the barrier 4 and forms a seal. This is the further preferred form of construction of the present disclosure, i.e. the width of the first sealing portion is greater than the width of the second sealing portion, i.e. the first sealing portion is disposed in the groove, and the second sealing portion extends from the notch of the groove and forms a seal with the tooth bottom, so that a step surface is formed at the junction of the first sealing portion and the second sealing portion, and the step surface is located on the first sealing portion, so that a seal is formed between the step surface and the barrier member, and thus a two-way sealing structure of the step surface and the second sealing portion is formed, which improves the sealing performance and solves the problem of leakage. The rack is made into a shape with a step section, and two end faces of the step are respectively contacted with the seal groove and the bottom of the vortex disc for sealing.

Fig. 3 is a model view of a sealing strip, fig. 4 is a sectional view of the sealing strip, the section of the sealing strip is stepped, and the sealing strip is composed of a first sealing part 51 with a larger section size and a second sealing part 52 with a smaller section size, along the molded line direction of the sealing strip, a hole channel (a first gas groove 54) is arranged below the first sealing part 51 to be used as a gas accommodating space, a second gas groove 55 for accommodating gas is arranged on the whole sealing strip in the radial direction at intervals, and the first gas groove 54 and the second gas groove 55 are both arranged to accommodate the gas of a compression cavity, so that the sealing strip can stably float up to be sealed. After the weatherstrip floats, sealing will be achieved by the close contact of the upper end faces of the first and

second seal portions

51 and 52 with the barrier 4 and the bottom of the scroll teeth, respectively, as shown in fig. 5. The first gas groove 54 and the second gas groove 55 are formed, so that the friction coefficient between the sealing strip and the scroll can be effectively reduced, the loss is reduced, and the compression efficiency is improved.

In some embodiments, in a cross section passing through the axis of the first scroll 1 or the second scroll 2, the width of the notch 31 < the width of the step surface 53, and the width of the second seal portion 52 < the width of the notch 31. The step surface can be effectively clamped at the notch to form clamping and stopping through the fact that the width of the notch is smaller than the width of the step surface, and the step surface is prevented from being separated from the notch; the width of the second sealing part 52 is less than that of the notch 31, so that the second sealing part can extend out of the notch, the second sealing part is used for butting the opposite scroll tooth bottoms, the scroll tooth bottoms can be abutted with each other, and the second sealing part can also be connected between the scroll tooth bottoms and the second sealing part through a compensating piece, so that the effective sealing effect between the tooth bottoms and the second sealing part is formed.

In some embodiments, the width of the first seal portion 51 < the width of the groove 3 in a cross section passing through the axis of the first scroll 1 or the second scroll 2. The width of the first sealing part 51 is less than that of the groove 3, so that the width of the bottom of the first sealing part is less than that of the groove bottom of the groove, the first sealing part can be conveniently and effectively arranged in the groove, and a gap can be formed between the side wall of the first sealing part and the side wall of the groove, so that gas can be conveniently introduced into the bottom of the first sealing part from the gap to form pressure for pushing the first sealing part to move towards the barrier piece, the situation that the first sealing part is sealed and cannot introduce gas pressure is prevented, and the sealing performance is improved.

In some embodiments, said barrier 4 comprises a first projection 41 and a second projection 42, said first projection 41 being connected at one end to one side wall of said recess 3 and at the other end projecting towards the other side wall of said recess 3, said second projection 42 being connected at one end to the other side wall of said recess 3 and at the other end projecting towards said first projection 41, while said gap 31 is defined between said first projection 41 and said second projection 42. The first extending part and the second extending part can form a notch to accommodate the second sealing part to extend out, and meanwhile, the two sides of the first extending part and the second extending part can form an abutting action with the step surface or have an abutting effect with other parts, so that the contact area is increased, and effective sealing between the step surface and the barrier part is ensured.

In the axial sealing structure between the scrolls of the scroll compressor, the sealing groove (groove 3) of the movable scroll and the fixed scroll is in a structure as shown in fig. 1, two semicircular grooves are arranged at the groove head 33 and the groove tail 34 of the sealing groove, no cover plate is arranged on the sealing groove, and a cover plate (namely, a baffle 4) is arranged on the end surface of the groove 3 except the groove head 33 and the groove tail 34, as shown in fig. 2.

In some embodiments, a first gas groove 54 is provided on an end face of the first seal portion 51 facing the groove bottom 32 of the groove 3; and/or a second gas groove 55 is arranged on the side surface of the first sealing part 51 facing the side wall of the groove 3; and/or a preset distance is arranged between the end surface of the first sealing part 51 facing the groove bottom 32 of the groove 3 and the groove bottom 32. The first sealing part is provided with a first gas groove facing the groove bottom, and the first gas groove is arranged on the end face of the first sealing part facing the groove bottom, so that gas can be introduced into the first sealing part to push the first sealing part to move towards the direction of the barrier piece; the second gas groove is formed in the side face of the first sealing portion, so that gas can be conveniently introduced from the side face of the first sealing portion, the second gas groove can be communicated with the first gas groove besides the pressure for pushing the first sealing portion towards the direction of the barrier piece, and therefore the gas introduced through the side face of the first sealing portion enters the first gas groove through the second gas groove, upward pressure is finally provided for the first sealing portion, and the sealing performance of the sealing component is improved; in addition, the interval of the preset distance exists between the end face of the first sealing part and the groove bottom of the groove, so that gas can enter the interval space, the gas pressure for pushing the first sealing part to move towards the blocking part is enhanced, and the sealing performance is further improved.

In some embodiments, when a first gas groove 54 is included, the first gas groove 54 extends along the direction of extension of the wrap; when the second gas groove 55 is included, the second gas groove 55 is plural, and the plural second gas grooves 55 are provided at intervals in the extending direction of the wrap. The first gas groove extends along the extending direction of the vortex wrap, so that gas can be introduced into the first gas groove along the extending length direction of the vortex wrap, the uniformity of gas pressure acting force on a sealing element is ensured, and the overall sealing performance is improved; the second gas grooves are arranged at intervals along the extending direction of the scroll wrap, so that gas is introduced into the second gas grooves from the side surface intermittently in the extending direction of the scroll wrap, the capability of providing gas pressure is enhanced, and the sealing performance is further improved.

In fig. 5, since the gas in the compression chamber comes into the first gas groove 54 region in the seal groove along with the operation of the compressor, and a large gap is left between the second sealing portion 52 of the seal strip and the two walls of the seal groove (i.e. the width of the second sealing portion is smaller than the width of the notch), the gas can easily enter to float the seal strip, so that the step surface 53 is attached to the barrier member 4, and the upper end surface of the second sealing portion 52 is attached to the tooth bottom of the scroll plate, thereby achieving axial sealing. And because this kind of sealed mode mainly relies on the sealed of two up end of stairstepping sealing strip, need not consider the cooperation of sealing strip lateral wall and seal groove, so compare with traditional scheme, this sealing strip can be the leakage that reduces that the axial clearance of great dynamics caused. And due to the fact that enough clearance can be reserved in the radial direction of the matching of the sealing strip and the groove, the floating of the sealing strip is easier and more stable.

In some embodiments, said groove 3 extends along the extension of the spiral on which it is provided, and said barrier 4 also extends along the extension of said groove 3. The groove extends along the extending direction of the vortex tooth, and gas can be introduced into the groove along the extending length direction of the vortex tooth, so that the uniformity of gas pressure acting force on a sealing element is ensured, and the integral sealing performance is improved; the barrier also extends in the direction of extension of the groove, so that an abutting seal (or a seal by means of an intermediate compensator) can be formed between the barrier and the stepped surface of the first seal in the direction of extension of the wrap, further improving the sealing performance at the barrier.

In some embodiments, the groove 3 is a semicircular groove arranged in a semicircular cross section at the head end and the tail end along the extension direction of the scroll wrap; and/or the leading end and the tail end of the groove 3 along the extension direction of the scroll wrap are not provided with the baffle 4. This is the preferred configuration of the groove of the present disclosure, with semi-circular grooves at the head and tail ends, and no barrier members, enabling the seal to be inserted into the groove at either the head or tail end, completing the assembly of the seal.

In some embodiments, the scroll compressor further includes a first compensator 61 and a first elastic member 71, the first elastic member 71 is connected to the second sealing portion 52, the other end of the first elastic member is connectable to one side surface of the first compensator 61, and the other side surface of the first compensator 61 is capable of abutting against the bottom surface of the second scroll 2 or the bottom surface of the first scroll 1 to form a seal. This is disclosed through first compensation piece and first elastic component, can make and seal compensation to this department when having first clearance 81 between the second sealing of sealing member and vortex tooth bottom, first compensation piece is connected between tooth bottom and second sealing promptly, improve the sealing performance between second sealing and the vortex dish tooth bottom, make first compensation piece by elastic connection between first compensation piece and second sealing through first elastic component, provide the effect of elasticity butt, make first compensation piece can be by long-term elasticity butt on the vortex dish tooth bottom, guarantee the effective sealed effect between vortex dish tooth bottom and the second sealing.

The soft rack with the compensation function and the stepped cross section is adopted, and the purposes of reducing radial leakage, improving the volume efficiency, improving the stability of the compressor, improving the universality of sealing parts, improving the processing fault tolerance rate, reducing the processing cost, reducing the power consumption and improving the compression efficiency are achieved.

Because the sealing mode has high requirements on the matched size between the sealing strip and the sealing groove, higher machining precision is required, and the axial clearance cannot be completely sealed no matter which size is unqualified. However, the machining problem is often unavoidable, so the patent also considers a compensation method for axial sealing when the machining size of the scroll or the sealing strip is abnormal, and the compensation method can be also suitable for the use of different scroll schemes. The method comprises the following two cases:

as shown in fig. 6 and 7, the reason for the situation shown in fig. 6 may be that the height of the sealing strip is too small or the height of the sealing groove of the scroll is too small, so that a first gap 81 is left between the end surface of the sealing strip and the bottom of the scroll, and the sealing effect is poor; the reason for this situation shown in fig. 7 may be the opposite of that of fig. 6, resulting in a second gap 82 between the step surface 53 and the seal-groove cover plate (barrier 4), with the same poor sealing effect. To compensate for both cases, the present disclosure adopts the methods shown in fig. 8 and 9 to solve: at each distance from the sealing strip there is a hole with a diameter slightly smaller than 22 a, in which a first elastic element 71 (spring) is embedded, so that the length of the spring is slightly greater than the height of the hole, leaving a portion of the spring exposed, as is evident from fig. 10. The first compensating part 61 is arranged on the spring, the thickness of the first compensating part 61 can be selected according to the first clearance 81 needed by the figure 6, when the compressor runs, the first compensating part 61 can be completely pressed on the upper surface of the sealing strip by the scroll, the spring is completely pressed in the hole, no matching clearance is left, and the leakage compensation is realized;

in some embodiments, the first elastic member 71 is a spring; and/or a first accommodating groove is formed in the end surface of the second sealing part 52, and one end of the first elastic element 71 is arranged in the first accommodating groove; and/or the first compensator 61 is a flexible structure. This is the preferred form of construction of the first resilient member of the present disclosure, i.e. the spring is capable of providing a resilient force acting to resiliently urge the first compensation member between the second seal and the scroll wrap base; the first accommodating groove formed in the end face of the second sealing part can accommodate one end of the first elastic piece to enter the first accommodating groove, so that the first elastic piece is effectively fixed, and conditions are provided for providing elastic abutting force; the first compensator is preferably a flexible structure that enhances the seal compensation.

In some embodiments, the sealing device further includes a second compensating member 62 and a second elastic member 72, the second elastic member 72 is connected to the step surface 53 of the first sealing portion 51, the other end of the second elastic member is connectable to one side surface of the second compensating member 62, and the other side surface of the second compensating member 62 can abut against the barrier member 4 to form a seal. According to the sealing device, the second compensation piece and the second elastic piece can be used for sealing and compensating a step surface of a first sealing part of the sealing piece when a second gap 82 is formed between the step surface and the blocking piece, namely the second compensation piece is connected between the blocking piece and the step surface, the sealing performance between the blocking piece and the step surface is improved, the second compensation piece is elastically connected between the first compensation piece and the second sealing part through the second elastic piece, the elastic abutting effect is provided, the second compensation piece can be elastically abutted to the blocking piece for a long time, and the effective sealing effect between the blocking piece and the step surface is guaranteed.

Similarly for the compensation scheme of the problem described in fig. 7, there will be two holes symmetrically distributed at intervals on the sealing strip, as is evident from fig. 9-10. A second elastic element 72, preferably a spring, is embedded in the hole, the second compensating element 62, which compensates for the problem described in fig. 9. Adopt this scheme, compare with the traditional sealing strip that radially reveals that reduces, sealed effect is better, can effectually reduce the gas leakage volume, improves the volume efficiency to can stabilize the efficient and carry out axial seal, moreover, can improve the processing fault-tolerant rate, reduce the processing cost, reduce the loss and improve compression efficiency.

In some embodiments, the second resilient member 72 is a spring; and/or a second accommodating groove is formed in the step surface 53, and one end of the second elastic piece 72 is arranged in the second accommodating groove; and/or the second compensation part 62 is of a flexible structure. This is the preferred form of construction of the second resilient member of the present disclosure, i.e. the spring is capable of providing a resilient force acting to resiliently urge the second compensation member against the step surface; a second accommodating groove formed in the step surface can accommodate one end of a second elastic piece to enter the second accommodating groove, so that the second elastic piece is effectively fixed, and conditions are provided for providing elastic abutting force; the second compensator is preferably a flexible structure that enhances the seal compensation.

In the compensation method described in fig. 8 and 9, involving the use of springs, it is possible to replace them with rubber, also having compression and recovery functions, also achieving the effect of the present patent.

The present disclosure also provides a scroll compressor including the scroll seal structure of any one of the preceding claims.

The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure. The above description is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present disclosure, and these modifications and variations should also be regarded as the protection scope of the present disclosure.

Claims

1. A vortex disk sealing structure is characterized in that: the method comprises the following steps:

the vortex compressor comprises a first vortex plate (1), a second vortex plate (2) and a sealing element (5), wherein a groove (3) is formed in a first vortex tooth end surface (11) of the first vortex plate (1) and/or a second vortex tooth end surface (21) of the second vortex plate (2), a blocking piece (4) is arranged at an opening of the groove (3), and the blocking piece (4) partially blocks the opening to form a notch (31);

the sealing element (5) comprises a first sealing part (51) and a second sealing part (52), the first sealing part (51) is accommodated in the groove (3), the first sealing part (51) can be opposite to the baffle piece (4) and form sealing, the second sealing part (52) extends out of the gap (31), and the end face of the second sealing part (52) can be opposite to the bottom face of the second scroll (2) and form sealing, or the end face of the second sealing part (52) can be opposite to the bottom face of the first scroll (1) and form sealing;

the scroll sealing structure further comprises a first compensation piece (61) and a first elastic piece (71), wherein the first elastic piece (71) is connected to the second sealing part (52), the other end of the first elastic piece can be connected with one side surface of the first compensation piece (61), and the other side surface of the first compensation piece (61) can abut against the bottom surface of the second scroll (2) or the bottom surface of the first scroll (1) to form a seal; the first elastic piece (71) is a spring; a first accommodating groove is formed in the end face of the second sealing part (52), and one end of the first elastic piece (71) is arranged in the first accommodating groove; the first compensation part (61) is of a flexible structure;

the first sealing part (51) is connected with the second sealing part (52) and a step surface (53) is formed at the connection part, the scroll sealing structure further comprises a second compensation piece (62) and a second elastic piece (72), the second elastic piece (72) is connected to the step surface (53) of the first sealing part (51), the other end of the second elastic piece can be connected with one side surface of the second compensation piece (62), and the other side surface of the second compensation piece (62) can be abutted against the baffle piece (4) to form sealing; the second elastic piece (72) is a spring; a second accommodating groove is formed in the step surface (53), and one end of the second elastic piece (72) is arranged in the second accommodating groove; the second compensation member (62) is of a flexible structure.

2. A scroll seal structure according to claim 1, wherein:

when the groove (3) is arranged on the first scroll lap end surface (11) of the first scroll (1), the end surface of the second sealing part (52) can be opposite to the bottom surface of the second scroll (2) and can form sealing between the two;

when the groove (3) is formed in the second scroll lap end surface (21) of the second scroll (2), the end surface of the second seal portion (52) can be opposed to the bottom surface of the first scroll (1) and a seal can be formed therebetween.

3. A scroll sealing structure as claimed in claim 1 or 2, wherein:

in a cross section passing through the axis of the first scroll (1) or the second scroll (2), the width of the second sealing portion (52) is smaller than the width of the first sealing portion (51), the step surface (53) is positioned on the first sealing portion (51), and the step surface (53) can be opposite to the barrier (4) and form a seal.

4. A scroll seal according to claim 3, wherein:

in a cross section passing through the axis of the first scroll (1) or the second scroll (2), the width of the notch (31) is less than the width of the step surface (53), and the width of the second seal portion (52) is less than the width of the notch (31).

5. A scroll seal structure according to claim 1, wherein:

the width of the first seal portion (51) is less than the width of the groove (3) in a cross section passing through the axis of the first scroll (1) or the second scroll (2).

6. A scroll seal structure according to claim 1, wherein:

the barrier (4) comprises a first protrusion (41) and a second protrusion (42), one end of the first protrusion (41) is connected to one side wall of the groove (3), the other end of the first protrusion protrudes towards the other side wall of the groove (3), one end of the second protrusion (42) is connected to the other side wall of the groove (3), the other end of the second protrusion protrudes towards the first protrusion (41), and a gap (31) is defined between the first protrusion (41) and the second protrusion (42).

7. A scroll seal according to any one of claims 1 to 6, wherein:

a first gas groove (54) is provided on an end face of the first sealing part (51) facing the groove bottom (32) of the groove (3); and/or a second gas groove (55) is arranged on the side surface of the first sealing part (51) facing the side wall of the groove (3); and/or the end surface of the first sealing part (51) facing the groove bottom (32) of the groove (3) is separated from the groove bottom (32) by a preset distance.

8. A scroll seal according to claim 7, wherein:

when a first gas groove (54) is included, the first gas groove (54) extends along the extending direction of the scroll wrap; when the second gas groove (55) is included, the second gas groove (55) is provided in plurality, and the plurality of second gas grooves (55) are provided at intervals in the extending direction of the scroll wrap.

9. A scroll seal structure according to claim 1, wherein:

the groove (3) extends along the extension direction of the spiral wrap arranged on the groove, and the baffle (4) also extends along the extension direction of the groove (3).

10. A scroll seal according to claim 9, wherein:

the head end and the tail end of the groove (3) along the extension direction of the scroll wrap are provided with semicircular grooves with semicircular cross sections; and/or the front end and the tail end of the groove (3) along the extension direction of the scroll wrap are not provided with the baffle pieces (4).

11. A scroll seal structure according to claim 1, wherein:

the first scroll (1) is a movable scroll, the second scroll (2) is a fixed scroll, and the sealing element (5) is made of flexible materials.

12. A scroll compressor characterized by: comprising a scroll seal according to any one of claims 1 to 11.

13. An air conditioner, characterized in that: comprising the scroll compressor of claim 12.