Scroll compressor and refrigeration equipment

Abstract

The present invention provides a scroll compressor and refrigeration equipment, belonging to the field of compressors. The scroll compressor comprises an orbiting scroll and a fixed scroll; wherein the orbiting scroll is formed with an upper annular convex portion, and the fixed scroll is formed with an annular concave portion, with a radially sealed oil delivery area formed between the upper annular convex portion and the annular concave portion; an upper bracket, forming a medium-pressure oil pool between the upper bracket and the orbiting scroll; an oil suction hole formed in the orbiting scroll, and an oil discharge hole formed in the fixed scroll; and a baffle, which separates the oil delivery area into an oil suction area and an oil discharge area, with the oil suction hole communicating with the oil suction area and the oil discharge area communicating with the oil discharge hole; one side of the baffle being in contact with the wall surface of the upper annular convex portion, and the baffle performing reciprocating linear motion and / or undergoing elastic deformation along the radial direction of the annular concave portion during the orbiting scroll rotation cycle. The present invention provides an upper annular convex portion, an annular concave portion, a baffle, an oil suction hole and an oil discharge hole. When the movable plate revolves, the oil in the medium-pressure oil pool is actively sucked out and discharged into the oil groove of the static plate, providing effective oil supply for the pump body structure of the scroll compressor.

Description

Technical Field

[0001] The present invention belongs to the field of compressors, and in particular relates to a scroll compressor and refrigeration equipment. Background Art

[0002] In scroll compressors, pump oil supply has always been a core issue in compressor technology. During the scroll compression process, insufficient oil supply to any of the mating surfaces—the meshing of the moving and static disc profiles, the meshing of the tooth tops and bottoms, and the relative sliding of the disc end faces—can lead to wear and even failure of the compressor. Therefore, the design of the oil supply structure, particularly the pump oil supply structure, is crucial for compressors. An excellent oil supply structure should not only ensure sufficient oil supply to the pump under all operating conditions to prevent wear, but also minimize the compressor's energy consumption caused by the oil supply itself.

[0003] Scroll compressor pump lubrication presents numerous trade-offs. Typically, on the back of the rotor plate, outside the rotor bearing, the compressor uses a sealing ring to divide the rotor plate's back-pressure chamber into a high-pressure chamber inside the rotor bearing and an intermediate-pressure chamber outside the rotor bearing. Therefore, the intermediate-pressure chamber often includes an anti-rotation mechanism that requires lubrication. Oil stirred onto the surface of the stator plate is also carried into the intermediate-pressure oil tank by the rotor plate's revolution, and then into the pump body.

[0004] Usually, the oil entering the medium-pressure cavity can only be lubricated when the oil pump fills the medium-pressure oil pool when entering the pump body, and the surface of the movable plate substrate can only be lubricated when the oil level is higher than the surface of the movable plate substrate.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a scroll compressor and a refrigeration device.

[0007] To solve the above technical problems, on the one hand, an embodiment of the present invention provides a scroll compressor, comprising:

[0008] A scroll assembly comprising an orbiting scroll and a fixed scroll that mesh with each other;

[0009] An upper annular convex portion is formed on the side of the orbiting scroll facing the fixed scroll, and an annular concave portion is formed on the side of the fixed scroll facing the orbiting scroll. The upper annular convex portion is movably disposed in the annular concave portion and forms a radially sealed oil delivery area between the annular concave portions.

[0010] An upper bracket, which is used to support the orbiting scroll and forms a medium-pressure oil pool between the upper bracket and the bottom of the orbiting scroll;

[0011] The oil suction hole is provided on the orbiting scroll, with one side opening to the medium-pressure oil pool and the other side opening to the oil delivery area;

[0012] An oil drain hole is provided on the fixed scroll, with one side opening to the fixed scroll oil groove and the other side opening to the oil delivery area;

[0013] a stopper for isolating the oil delivery area in the circumferential direction and dividing the oil delivery area into an oil suction area and an oil discharge area on either side of the stopper, wherein the oil suction hole is connected to the oil suction area, and the oil discharge area is connected to the oil discharge hole, wherein one side of the stopper is in contact with the wall surface of the upper annular protrusion, and the stopper can perform reciprocating linear motion and / or elastic deformation along the radial direction of the annular recess during the rotation cycle of the orbiting scroll;

[0014] During the rotation cycle of the orbiting scroll, the oil suction area and the oil discharge area can be interconnected on the side away from the baffle so that the oil sucked into the oil suction area from the oil suction hole is compressed into the oil discharge area and discharged into the stator oil tank through the oil discharge hole connected to the oil discharge area.

[0015] In the above technical solution, the blocking member includes a slider that can slide radially along the annular recess;

[0016] The side of the slider away from the wall surface of the upper annular convex portion is connected to the exhaust pressure side of the scroll assembly so that the other side of the slider always keeps in contact with the wall surface of the upper annular convex portion when the slider slides.

[0017] In the above technical solution, a chute is provided at the bottom of the fixed scroll along the radial direction of the fixed scroll, one side of the chute is opened to the annular recess, and the slider is at least partially slidably installed in the chute;

[0018] A high-pressure hole is opened in the axial direction of the fixed scroll disk, one side of the high-pressure hole is opened to the exhaust pressure side of the scroll assembly, and the other side is opened in the slide groove so that the side of the slider close to the upper annular protrusion is always kept in contact with the wall surface of the upper annular protrusion through the opening of the slide groove.

[0019] In the above technical solution, the stopper includes an elastic member arranged radially along the annular recess, one side of the elastic member is in contact with the wall surface of the upper annular protrusion, and the opposite side is fixed on the side wall surface of the annular recess.

[0020] In the above technical solution, the elastic member includes a rubber block or a silicone block.

[0021] In the above technical solution, the blocking member includes an elastic member and a slider arranged radially along the annular recess;

[0022] A chute is provided at the bottom of the fixed scroll along the radial direction of the fixed scroll, and one side of the chute is opened to form an annular recess;

[0023] The elastic member is installed in the slide groove, one side of which is fixed on the groove surface of the slide groove, and the other side is fixedly connected to the elastic member;

[0024] The slider is at least partially slidably installed in the slide groove, one side of the slider is fixedly connected to the elastic member, and the other side is fitted with the wall surface of the upper annular protrusion through the opening of the slide groove.

[0025] In the above technical solution, the elastic member includes a spring or a rubber block or a silicone block.

[0026] In the above technical solution, the side of the stopper that contacts the upper annular protrusion is an arc surface.

[0027] In the above technical solution, a lower annular convex portion is further provided on the side of the orbiting scroll away from the fixed scroll;

[0028] The downward projection of the upper annular convex portion coincides with the lower annular convex portion;

[0029] The oil suction holes are formed through the lower annular convex portion and the upper annular convex portion to guide the oil in the medium-pressure oil pool into the oil delivery area.

[0030] In the above technical solution, the oil suction hole is an L-shaped oil hole, one side of which opens to the bottom wall of the lower annular convex portion, and the other side opens to the side wall of the upper annular convex portion.

[0031] On the other hand, an embodiment of the present invention further provides a refrigeration device, which includes the scroll compressor mentioned above.

[0032] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0033] 1. In the embodiment of the present invention, an oil delivery area can be formed by arranging mutually matching upper annular protrusions and annular recesses on the orbiting scroll and the stationary scroll, and by arranging a baffle in the oil delivery area, the oil delivery area can be divided into an oil suction area and an oil discharge area. When the orbiting scroll revolves, the volume of the oil suction area gradually increases, and the oil in the medium-pressure oil pool can be sucked into the oil suction area through the oil suction hole. The oil sucked into the oil suction area from the oil suction hole can be compressed into the oil discharge area under the orbiting state of the orbiting scroll and discharged into the oil groove of the stationary disk through the oil discharge hole connected to the oil discharge area, thereby providing effective oil supply to the pump body structure of the scroll compressor, thereby improving the reliability of the pump body.

[0034] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0036] Figure 1 This is a schematic diagram of the exploded structure of an embodiment of a scroll compressor of the present invention;

[0037] Figure 2 An exploded perspective structural diagram of an embodiment of a scroll compressor of the present invention;

[0038] Figure 3 This is a schematic diagram of a first cross-sectional structure of a scroll assembly in an embodiment of a scroll compressor of the present invention;

[0039] Figure 4 for Figure 3 A schematic diagram of a cross-sectional structure of the embodiment rotated along the C direction on the EE surface;

[0040] Figure 5 A second cross-sectional structural diagram of a scroll assembly in an embodiment of a scroll compressor of the present invention;

[0041] Figure 6 A third cross-sectional structural diagram of a scroll assembly in an embodiment of a scroll compressor of the present invention;

[0042] Among them: 1- scroll assembly, 11- orbiting scroll, 111- upper annular convex portion, 112- lower annular convex portion, 12- stationary scroll, 121- annular concave portion, 122- stationary disk oil groove, 2- oil delivery area, 211- oil suction area, 212- oil delivery area, 3- upper bracket, 4- medium-pressure oil pool, 5- oil suction hole, 6- oil discharge hole, 7- slider, 8- high-pressure hole.

[0043] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] In the description of the present invention, it should be noted that the terms "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "in contact," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0046] In the currently existing scroll compressors, when lubricating the surface of the moving disk substrate, the surface of the moving disk substrate can usually only be lubricated when the oil pump fills the medium-pressure oil pool and the oil level is higher than the surface of the moving disk substrate. In the embodiment of the present invention, an oil delivery area can be formed by arranging upper annular protrusions and annular recesses that cooperate with each other on the moving scroll and the static scroll, and the oil delivery area can be divided into an oil suction area and an oil discharge area by arranging a baffle in the oil delivery area. When the moving scroll revolves, the volume of the oil suction area gradually increases, and the oil in the medium-pressure oil pool can be sucked into the oil suction area through the oil suction hole. The oil sucked into the oil suction area from the oil suction hole can be compressed into the oil discharge area under the orbital state of the moving scroll and discharged into the static disk oil tank through the oil discharge hole connected to the oil discharge area, thereby providing effective oil supply for the pump body structure of the scroll compressor, thereby improving the reliability of the pump body.

[0047] To further illustrate the technical solution of the present invention, Figures 1-6 As shown, the following specific embodiments are provided.

[0048] Example 1

[0049] In an embodiment of the present invention, a Figure 1 and Figure 2 The scroll compressor shown includes

[0050] The scroll assembly 1 comprises an orbiting scroll 11 and a fixed scroll 12 which mesh with each other;

[0051] like Figure 1-Figure 3 As shown, an upper annular convex portion 111 is formed on the side of the orbiting scroll 11 facing the fixed scroll 12, and an annular recess 121 is formed on the side of the fixed scroll 12 facing the orbiting scroll 11. The upper annular convex portion 111 is movably arranged in the annular recess 121 and forms a radially sealed oil delivery area 2 between the annular recesses, that is, when the orbiting scroll 11 revolves, the upper annular convex portion 111 can rotate with the orbiting scroll 11, that is, the upper annular convex portion 111 can move in the annular recess 121 at the bottom of the fixed scroll 12. Preferably, the upper annular convex portion 111 is an annular skirt integrally formed at the edge of the orbiting scroll 11, and the annular recess 121 is an annular groove opened at the bottom of the fixed scroll 12.

[0052] like Figure 1 and Figure 4 As shown, the scroll compressor also includes the following structure:

[0053] The upper bracket 3 is used to support the orbiting scroll 11 and form a medium-pressure oil pool 4 between the upper bracket 3 and the bottom of the orbiting scroll 11;

[0054] The oil suction hole 5 is provided on the orbiting scroll 11, with one side opening to the medium-pressure oil pool 4 and the other side opening to the oil delivery area 2;

[0055] The oil drain hole 6 is provided on the fixed scroll 12, with one side opening to the fixed scroll oil groove 122 and the other side opening to the oil delivery area 2;

[0056] The blocker is used to block the oil delivery area 2 in the circumferential direction and divide the oil delivery area 2 into an oil suction area 211 and an oil discharge area 212 located on both sides of the blocker. The oil suction hole 5 is connected to the oil suction area 211, and the oil discharge area 212 is connected to the oil discharge hole 6. One side of the blocker is in contact with the wall surface of the upper annular protrusion 111, and the blocker can perform reciprocating linear motion and / or elastic deformation along the radial direction of the annular recess 121 during the rotation cycle of the orbiting scroll 11;

[0057] During the rotation cycle of the movable scroll plate 11, the oil suction area 211 and the oil discharge area 212 can be interconnected on the side away from the baffle so that the oil sucked into the oil suction area 211 from the oil suction hole 5 is compressed into the oil discharge area 212 and discharged into the static plate oil groove 122 through the oil discharge hole 6 connected to the oil discharge area 212.

[0058] like Figure 5 As shown, when the pump body structure of the scroll compressor is in operation, the movable scroll 11 revolves, and the volume of the oil suction area 211 gradually increases with the revolution of the movable scroll 11. The oil pressure in the oil suction area 211 is lower than the oil pressure in the medium-pressure oil pool 4, so that the oil in the medium-pressure oil pool 4 is sucked into the oil suction area 211 through the oil suction hole 5 and contacts the upper end surface of the base plate of the movable scroll 11.

[0059] like Figure 6 As shown, when the oil outlet of the oil suction hole 5 on the movable scroll 11 moves with the movable scroll 11 to a position in contact with the wall of the annular recess 121, the oil suction area 211 and the oil discharge area 212 are interconnected to form a complete oil delivery area 21, the oil suction area reaches the maximum, and the oil suction state ends. When the movable scroll 11 revolves, the oil delivery area 21 can be compressed, so that the sucked lubricating oil can be pumped into the static plate oil groove 122 on the end faces of the movable and static plates, providing effective oil supply for the pump body, thereby improving the reliability of the pump body.

[0060] It is worth noting that the oil suction and discharge mentioned above is not a single oil supply process. The movable scroll 11 can absorb and discharge oil in sequence every time it orbits one circle. As the movable scroll 11 continues to orbit, the oil suction and discharge process is continuous and uninterrupted, that is, as the movable scroll 11 continues to orbit, the refrigerated oil in the medium-pressure oil pool 4 can be continuously sucked into the upper end surface of the base plate of the movable scroll 11.

[0061] In any of the above embodiments, Figure 3-Figure 6 As shown, the blocking member includes a slider 7 that can slide radially along the annular recess 121;

[0062] The side of the slider 7 away from the wall of the upper annular protrusion 111 is connected to the exhaust pressure side of the scroll assembly 1 so that the other side of the slider 7 always keeps in contact with the wall of the upper annular protrusion 111 when the slider 7 slides.

[0063] When the pump body structure of the scroll compressor operates normally, the annular protrusion 111 on the movable scroll 11 engages with the annular recess 121 at the bottom of the fixed scroll 12, and the slider 7 is pushed toward the upper annular protrusion 111 of the movable scroll 11 by the pressure on the exhaust side of the scroll assembly 1, and presses against the wall surface of the upper annular protrusion 111 to divide the oil delivery area 21 into an oil suction area 211 and an oil discharge area 212.

[0064] Specifically, a chute is formed at the bottom of the fixed scroll 12 along the radial direction of the fixed scroll 12 , one side of the chute is open to the annular recess 121 , and the slider 7 is at least partially slidably mounted in the chute.

[0065] A high-pressure hole 8 is provided in the axial direction of the fixed scroll plate 12, wherein one side of the high-pressure hole 8 opens to the exhaust pressure side of the scroll assembly 1, and the other side opens in the slide groove so that the side of the slider 7 close to the upper annular protrusion 111 always maintains a fit with the wall surface of the upper annular protrusion 111 through the opening of the slide groove.

[0066] When the pump body structure of the scroll compressor operates normally, the slider 7 is pushed toward the upper annular protrusion 111 of the movable scroll 11 by the high-pressure gas introduced from the high-pressure hole 8, and presses against the wall surface of the upper annular protrusion 111, thereby dividing the oil delivery area 21 into the oil suction area 211 and the oil discharge area 212.

[0067] As described above, the aforementioned blocker achieves the effect of separating the oil delivery area 21 through the cooperation of the slider 7 and the high-pressure hole 8. It is worth noting that in some alternative embodiments, the blocker can also adopt other specific forms to achieve the effect of separating the oil delivery area 21.

[0068] For example, in some embodiments not shown in the figures, the baffle can also be an elastic member arranged radially along the annular recess 121. In this arrangement, one side of the elastic member can be kept in contact with the wall surface of the upper annular protrusion 111, while the other opposite side is fixed to the side wall surface of the annular recess 121.

[0069] When the upper annular protrusion 111 revolves along with the orbiting scroll 11 , the elastic member may be elastically deformed, thereby separating the oil delivery area while ensuring the normal orbiting of the orbiting scroll 11 .

[0070] Specifically, in this arrangement, the elastic member mentioned above can be a rubber block or a silicone block or other elastic member. However, it is worth noting that in this arrangement (i.e., the elastic member is arranged in the annular recess 121), the elastic member cannot be a spring, because a spring has a gap and cannot effectively achieve a separation effect.

[0071] By configuring the blocking member in the form of an elastic member, it is possible to omit the need to provide a high-pressure hole on the fixed scroll 1 .

[0072] For another example, in some other embodiments not shown in the figures, the blocking member may also be configured as an elastic member and a slider radially arranged along the annular recess 121;

[0073] In this arrangement, a chute is provided at the bottom of the fixed scroll 12 along the radial direction of the fixed scroll 12 , wherein one side opening of the chute is connected to the annular recess 121 ;

[0074] The elastic member is installed in the slide groove, one side of which is fixed on the groove surface of the slide groove, and the other side is fixedly connected to the elastic member;

[0075] The slider is at least partially slidably installed in the slide groove, one side of the slider is fixedly connected to the elastic member, and the other side is in contact with the wall surface of the upper annular protrusion 111 through the opening of the slide groove.

[0076] When the baffle is formed by combining an elastic member and a slider, not only can the high-pressure hole 8 on the static scroll plate 12 be omitted, but the specific selection of the elastic member is not limited to rubber blocks or silicone blocks. A spring can also be used as the elastic member, as long as the elastic member has certain elastic properties.

[0077] In summary, no matter which form the baffle is set in, it can achieve the effect of separating the oil delivery area 21 and will not affect the normal revolution of the orbiting scroll 11.

[0078] It should be noted that, in any of the above embodiments, in order to avoid an excessively large friction coefficient between the stopper and the upper annular protrusion 111 when they are in contact with each other, the side surface of the stopper that is in contact with the upper annular protrusion 111 may be configured as an arc surface.

[0079] It should also be noted that, in any of the above-mentioned embodiments, in order to promptly draw the lubricating oil in the medium-pressure oil pool 4 into the oil suction area 211, a lower annular protrusion 112 may be further provided on the side of the orbiting scroll 11 facing away from the fixed scroll 12, wherein the distance between the bottom end of the lower annular protrusion 112 and the bottom of the medium-pressure oil pool 4 is between 0.5 mm and 2 mm;

[0080] The downward projection of the upper annular convex portion 111 coincides with the lower annular convex portion 112 ;

[0081] The oil suction hole 5 is formed through the lower annular protrusion 112 and the upper annular protrusion 111 to guide the oil in the medium-pressure oil pool 4 into the oil delivery area 2 .

[0082] Specifically, the aforementioned oil suction hole 5 is an L-shaped oil hole, wherein one side of the L-shaped oil suction hole 5 opens to the bottom wall of the lower annular protrusion 112, and the other side opens to the side wall of the upper annular protrusion 111. This allows the lubricating oil in the medium-pressure oil pool 4 to be promptly sucked into the oil suction area 211.

[0083] Of course, the shape of the oil suction hole 5 is not limited to an L-shape. In some alternative embodiments, the oil suction hole 5 can also be configured as a concave shape. When the oil suction hole 5 is concave, one side of the hole opens to the bottom end of the side wall of the lower annular protrusion 112, and the other side opens to the bottom end of the side wall of the upper annular protrusion 111. This can also promptly draw the lubricating oil in the medium-pressure oil pool 4 into the oil suction area 211. The specific shape of the oil suction hole 5 is not limited in this embodiment.

[0084] On the other hand, an embodiment of the present invention further provides a refrigeration device, which includes the scroll compressor mentioned above, wherein the refrigeration device can be any electrical appliance with a refrigeration function, such as an air conditioner, a refrigerator, or a freezer.

[0085] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A scroll compressor, characterized in that: include: A scroll assembly (1) comprising an orbiting scroll (11) and a fixed scroll (12) meshing with each other; An upper annular convex portion (111) is formed on the side of the orbiting scroll (11) facing the fixed scroll (12), and an annular concave portion (121) is formed on the side of the fixed scroll (12) facing the orbiting scroll (11). The upper annular convex portion (111) is movably disposed in the annular concave portion (121) and forms a radially sealed oil delivery area (2) with the annular concave portion. an upper bracket (3) for supporting the movable scroll (11) and forming a medium-pressure oil pool (4) between the upper bracket and the bottom of the movable scroll (11); An oil suction hole (5) is provided on the movable scroll (11), one side of which opens to the medium-pressure oil pool (4) and the other side of which opens to the oil delivery area (2); An oil drain hole (6) is provided on the static scroll disk (12), with one side opening to the static disk oil groove (122) and the other side opening to the oil delivery area (2); a baffle for blocking the oil delivery area (2) in the circumferential direction and dividing the oil delivery area (2) into an oil suction area (211) and an oil discharge area (212) located on both sides of the baffle, wherein the oil suction hole (5) is in communication with the oil suction area (211), and the oil discharge area (212) is in communication with the oil discharge hole (6), wherein one side of the baffle is in contact with the wall surface of the upper annular protrusion (111), and the baffle can perform reciprocating linear motion and / or elastic deformation along the radial direction of the annular recess (121) during the rotation period of the movable scroll (11); During the rotation cycle of the movable scroll disk (11), the oil suction area (211) and the oil discharge area (212) can be interconnected on the side away from the baffle so that the oil sucked into the oil suction area (211) from the oil suction hole (5) is compressed into the oil discharge area (212) and discharged into the static disk oil groove (122) through the oil discharge hole (6) connected to the oil discharge area (212).

2. The scroll compressor according to claim 1, wherein: The blocking member comprises a slider (7) capable of radially sliding along the annular recess (121); The side of the slider (7) away from the wall surface of the upper annular protrusion (111) is matched with the exhaust pressure side of the vortex assembly (1) so that the other side of the slider (7) always remains in contact with the wall surface of the upper annular protrusion (111) when the slider (7) slides.

3. The scroll compressor according to claim 2, wherein: A sliding groove is provided at the bottom of the fixed scroll disk (12) along the radial direction of the fixed scroll disk (12), one side of the sliding groove is open to the annular recess (121), and the slider (7) is at least partially slidably embedded in the sliding groove; A high-pressure hole (8) is provided in the axial direction of the static scroll disk (12), one side of the high-pressure hole (8) is open to the exhaust pressure side of the scroll assembly (1), and the other side is open to the slide groove so that the side of the slider (7) close to the upper annular protrusion (111) is always kept in contact with the wall surface of the upper annular protrusion (111) through the opening of the slide groove.

4. The scroll compressor according to claim 1, wherein The stopper comprises an elastic member radially arranged along the annular recess, one side of the elastic member being in contact with the wall surface of the upper annular protrusion (111), and the opposite side being fixed on the side wall surface of the annular recess (121).

5. The scroll compressor according to claim 4, wherein: The elastic member includes a rubber block or a silicone block.

6. The scroll compressor according to claim 1, wherein: The blocking member comprises an elastic member and a sliding block radially arranged along the annular recess (121); A sliding groove is provided at the bottom of the fixed scroll (12) along the radial direction of the fixed scroll (12), and one side of the sliding groove opens to the annular recess (121); The elastic member is installed in the chute, with one side of the elastic member fixed on the chute surface and the other side of the elastic member fixedly connected to the elastic member; The slider is at least partially slidably mounted in the slide groove, one side of the slider is fixedly connected to the elastic member, and the other side is fitted with the wall surface of the upper annular protrusion (111) through the opening of the slide groove.

7. The scroll compressor according to claim 6, characterized in that The elastic member includes a spring or a rubber block or a silica gel block.

8. The scroll compressor according to any one of claims 1 to 7, characterized in that: The side of the stopper that contacts the upper annular convex portion (111) is an arc surface.

9. The scroll compressor according to any one of claims 1 to 7, characterized in that: A lower annular protrusion (112) is further provided on the side of the orbiting scroll (11) facing away from the stationary scroll (12); The downward orthographic projection of the upper annular convex portion (111) coincides with the lower annular convex portion (112); The oil suction hole (5) is provided through the lower annular convex portion (112) and the upper annular convex portion (111) to guide the oil in the medium-pressure oil pool (4) into the oil delivery area (2).

10. The scroll compressor according to claim 9, wherein: The oil suction hole (5) is an L-shaped oil hole, one side of which opens to the bottom wall of the lower annular convex portion (112), and the other side opens to the side wall of the upper annular convex portion (111).

11. A refrigeration device, characterized in that: The scroll compressor comprises the scroll compressor according to any one of claims 1 to 10.

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