Exhaust assembly, scroll compressor and refrigeration equipment

Abstract

The utility model discloses an exhaust assembly, a scroll compressor and refrigeration equipment, and relates to the technical field of compressors, and the exhaust assembly comprises a valve seat and a valve plate. The valve seat is provided with a first groove body, a groove opening of the first groove body faces the exhaust port of the compression assembly, and a first through hole is formed in the top wall of the first groove body. The valve plate is mounted in the first groove body and can move between the exhaust port and the top wall so as to open or close the exhaust port; the side, facing the valve plate, of the top wall is provided with a second groove body, and at least part of projection of the second groove body is located in the projection of the valve plate on the projection face of projection in the movement direction of the valve plate. According to the scroll compressor, through the arrangement of the second groove body, the contact area between the valve plate and the top wall is reduced when the valve plate is attached to the top wall, so that the amplitude of the adhesive force between the valve plate and the top wall is reduced, when the scroll compressor stops exhausting, the valve plate can smoothly fall off from the valve seat, and the risk that a motor rotates reversely due to the fact that the valve plate cannot fall off is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to an exhaust component, a scroll compressor and a refrigeration device. Background Art

[0002] When a scroll compressor is operating, the exhaust valve disc is pressed against the surface of the valve seat by the refrigerant and lubricating oil at the exhaust port of the compression assembly, forming an oil film between the exhaust valve disc and the valve seat. When the scroll compressor is shut down, the exhaust valve disc, under the influence of the exhaust pressure, moves downward and away from the valve seat. However, due to the viscosity of the lubricating oil, the exhaust valve disc is difficult to remove due to adhesion, causing the scroll compressor motor to reverse. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an exhaust assembly that reduces the amplitude of the adhesion force and solves the risk of the motor reversing due to the valve plate being unable to fall off.

[0004] The utility model also provides a scroll compressor and refrigeration equipment having the exhaust assembly.

[0005] According to the exhaust assembly of the first aspect of the present invention, a compression assembly for a scroll compressor includes: a valve seat, which is provided with a first groove body, the groove of the first groove body faces the exhaust port of the compression assembly, and the top wall of the first groove body is provided with a first through hole; a valve plate, which is installed in the first groove body, and the valve plate can move between the exhaust port and the top wall to open or close the exhaust port; wherein, a second groove body is provided on the side of the top wall facing the valve plate, and on the projection surface projected along the movement direction of the valve plate, at least part of the projection of the second groove body is located within the projection of the valve plate.

[0006] The exhaust assembly according to the embodiment of the present utility model has at least the following beneficial effects:

[0007] By arranging a second groove body on the top wall of the first groove body for cooperating with the movement of the valve plate in the valve seat, at least part of the projection of the second groove body is located within the projection of the valve plate on the projection surface projected along the movement direction of the valve plate. Due to the arrangement of the second groove body, the contact area between the valve plate and the top wall is reduced when the valve plate is attached to the top wall, thereby reducing the amplitude of the adhesion force between the valve plate and the top wall. Therefore, when the scroll compressor stops exhausting, the valve plate can smoothly fall off from the valve seat and close the exhaust port of the compression assembly, reducing the risk of the valve plate failing to fall off and causing the motor to reverse.

[0008] According to some embodiments of the present invention, the second groove body includes a first annular groove, and the first annular groove is located between the peripheral wall of the first through hole and the peripheral wall of the first groove body.

[0009] According to some embodiments of the present invention, the top wall is provided with at least one second through hole, and the second through hole is located in the first annular groove.

[0010] According to some embodiments of the present invention, the second groove body further includes at least one first radial groove, one end of the first radial groove extends to the first through hole, and the other end extends to the first annular groove.

[0011] According to some embodiments of the present invention, the second groove body includes a plurality of circumferential grooves, which are arranged at intervals along the circumference of the first through hole, and the top wall is provided with a plurality of third through holes, and each of the circumferential grooves is provided with at least one third through hole.

[0012] According to some embodiments of the present invention, the second groove body includes a second annular groove, the second annular groove is arranged around the outer side of the peripheral wall of the first through hole, and the second annular groove is connected to the first through hole.

[0013] According to some embodiments of the present invention, the second groove body includes a third annular groove, and the third annular groove is arranged around the inner side of the peripheral wall of the first groove body.

[0014] According to some embodiments of the present invention, the second groove body includes at least one second radial groove, and one end of the second radial groove extends to the first through hole.

[0015] According to some embodiments of the present invention, a plurality of second radial grooves are provided, and the plurality of second radial grooves are spaced apart along the circumference of the first through hole. The plurality of second radial grooves are straight strip-shaped and extend radially along the first through hole.

[0016] According to some embodiments of the present invention, a side of the top wall facing the valve plate is flat.

[0017] According to some embodiments of the present invention, the valve seat includes a limiting portion and mounting portions respectively connected to both sides of the limiting portion, the two mounting portions are fixedly connected to the compression assembly, the limiting portion is formed as the top wall, and the side walls opposite to the two mounting portions are formed as partial side walls of the first trough body.

[0018] The scroll compressor according to the second embodiment of the present invention includes the exhaust assembly described in the above embodiment.

[0019] The scroll compressor according to the embodiment of the present invention has at least the following beneficial effects:

[0020] An exhaust assembly adopts the embodiment of the first aspect, and the exhaust assembly is configured by setting a second groove body on the top wall of the first groove body on the valve seat for cooperating with the movement of the valve plate. On the projection surface projected along the movement direction of the valve plate, at least part of the projection of the second groove body is located within the projection of the valve plate. Due to the setting of the second groove body, the contact area between the valve plate and the top wall is reduced when the valve plate is attached to the top wall, thereby reducing the amplitude of the adhesion force between the valve plate and the top wall. Therefore, when the scroll compressor stops exhausting, the valve plate can smoothly fall off from the valve seat and close the exhaust port of the compression assembly, reducing the risk of the valve plate failing to fall off and causing the motor to reverse.

[0021] According to the third aspect of the present invention, a refrigeration device includes a compression assembly and the scroll compressor described in the above embodiments. The compression assembly includes a static scroll and a movable scroll. A compression chamber is formed between the static scroll and the movable scroll. The static scroll is provided with an exhaust port connected to the compression chamber. The exhaust assembly is installed on the static scroll.

[0022] The refrigeration equipment according to the embodiment of the present utility model has at least the following beneficial effects:

[0023] A scroll compressor adopts the second aspect of the embodiment, and the scroll compressor includes an exhaust assembly. The exhaust assembly is achieved by setting a second groove body on the top wall of the first groove body of the valve seat for cooperating with the movement of the valve plate. On the projection surface projected along the movement direction of the valve plate, at least part of the projection of the second groove body is located within the projection of the valve plate. Due to the setting of the second groove body, the contact area between the valve plate and the top wall is reduced when the valve plate is attached to the top wall, thereby reducing the amplitude of the adhesion force between the valve plate and the top wall. Therefore, when the scroll compressor stops exhausting, the valve plate can smoothly fall off from the valve seat and close the exhaust port of the compression assembly, reducing the risk of the valve plate failing to fall off and causing the motor to reverse.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 A cross-sectional view of a partial structure of a scroll compressor according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1 An enlarged cross-sectional view of the center stationary scroll and exhaust assembly;

[0028] Figure 3 A schematic diagram of the forces and fluid flows of an exhaust assembly according to an embodiment of the present invention;

[0029] Figure 4This is a schematic structural diagram of a valve seat according to an embodiment of the present invention;

[0030] Figure 5 for Figure 4 A bottom view of the valve seat is shown;

[0031] Figure 6 A bottom view of a valve seat according to another embodiment of the present invention;

[0032] Figure 7 A bottom view of a valve seat according to another embodiment of the present invention;

[0033] Figure 8 A bottom view of a valve seat according to another embodiment of the present invention;

[0034] Figure 9 This is a bottom view of a valve seat according to another embodiment of the present invention.

[0035] Figure Number:

[0036] Housing 100;

[0037] Compression assembly 200; orbiting scroll 210; fixed scroll 220; exhaust port 221; compression chamber 230;

[0038] Crankshaft 300;

[0039] Motor 400;

[0040] Exhaust assembly 500; valve plate 510; valve seat 520; first groove body 521; top wall 522; first through hole 523; limiting portion 524; mounting portion 525; mounting hole 5251; second through hole 526; third through hole 527; second groove body 530; first annular groove 531; first radial groove 532; circumferential groove 533; second annular groove 534; third annular groove 535; second radial groove 536. DETAILED DESCRIPTION

[0041] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0042] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship 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.

[0043] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0044] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0045] The compressor is a core component of the refrigeration system. It compresses the low-temperature, low-pressure refrigerant that flows back into the compressor, converting it into high-temperature, high-pressure refrigerant before discharging it back into the refrigeration system. A scroll compressor is a type of compressor that uses positive displacement compression.

[0046] Reference Figure 1 As shown, a scroll compressor generally includes components such as a housing 100 , a compression assembly 200 , a crankshaft 300 , and a motor 400 . The compression assembly 200 , the crankshaft 300 , and the motor 400 are all located in the inner cavity of the housing 100 .

[0047] Compression assembly 200 includes an orbiting scroll 210 and a fixed scroll 220, with a compression chamber 230 formed between the orbiting scroll 210 and the fixed scroll 220. Orbiting scroll 210 is rotatably connected to the eccentric portion of crankshaft 300. A motor 400 is used to drive crankshaft 300 in rotation. During its movement, orbiting scroll 210 compresses refrigerant and discharges the compressed refrigerant from an exhaust port 221 that communicates with compression chamber 230. The scroll compressor also includes an exhaust assembly 500, which is mounted at exhaust port 221. A valve plate 510 of exhaust assembly 500 is used to control the opening or closing of exhaust port 221.

[0048] When a conventional scroll compressor is in operation, the valve disc 510, under the influence of the refrigerant and lubricating oil in the exhaust port 221, is pressed tightly against the surface of the valve seat 520 of the exhaust assembly 500, forming an oil film between the valve disc 510 and the valve seat 520. When the scroll compressor is shut down, the exhaust pressure within the housing 100 causes the valve disc 510 to move downward and separate from the valve seat 520. However, due to the viscosity of the lubricating oil, the valve disc 510 is difficult to remove due to adhesion forces, resulting in reverse rotation of the scroll compressor motor 400.

[0049] Reference Figure 1 and Figure 2As shown, in the scroll compressor of the embodiment of the present invention, the exhaust port 221 is located at the upper end surface of the static scroll 220 of the compression assembly 200, and the exhaust port 221 discharges the refrigerant in the compression chamber 230 into the shell 100. In order to solve the technical problems of the traditional scroll compressor, the present invention provides an embodiment of the exhaust assembly 500 arranged at the exhaust port 221 of the static scroll 220. The exhaust assembly 500 of this embodiment includes a valve seat 520 and a valve plate 510. The valve seat 520 is provided with a first groove body 521, the groove of the first groove body 521 faces the exhaust port 221, and the valve plate 510 is installed in the first groove body 521. Figure 2 and Figure 3 As shown, the shape of the valve disc 510 is compatible with the first groove body 521. A certain gap exists where the outer contour of the valve disc 510 and the inner wall of the first groove body 521 meet, allowing the valve disc 510 to move vertically within the first groove body 521. It is understood that the structure of the valve disc 510 can be completely or partially located within the first groove body 521. The specific selection depends on the actual product and is not specifically limited here. The upper end surface of the first groove body 521 is a top wall 522. The top wall 522 is arranged opposite the exhaust port 221, and the valve disc 510 can move between the exhaust port 221 and the top wall 522. When the compression assembly 200 is exhausting, the valve plate 510 moves to the top wall 522 to open the exhaust port 221; when the compression assembly 200 stops exhausting, the valve plate 510 moves to the upper end surface of the exhaust port 221 to close the exhaust port 221, thereby preventing the refrigerant from backflowing into the compression chamber 230 of the compression assembly 200 under the action of the exhaust pressure, causing the movable scroll 210 to rotate in the opposite direction, thereby causing the motor 400 to reverse.

[0050] In the embodiment of the present invention, the top wall 522 defines a first through hole 523, which extends vertically through the valve seat 520 and is located at the center of the first groove 521. The top wall 522 also defines a second groove 530, which is located on the side of the top wall 522 facing the valve disc 510. The second groove 530 may have a ring shape, an arc shape, a straight strip shape, or other similar structures, or combinations thereof. The second groove 530 is configured such that, on a projection plane projected along the direction of movement of the valve disc 510 (i.e., a projection plane perpendicular to the vertical direction), at least a portion of the projection of the second groove 530 lies within the projection of the valve disc 510.

[0051] Reference Figure 3 As shown, when the compression assembly 200 is exhausted, the force of the refrigerant exhausted upward from the exhaust port 221 is greater than the exhaust pressure in the shell 100, the valve plate 510 is tightly attached to the top wall 522 of the valve seat 520, and the direction of the refrigerant force is from bottom to top (as shown in FIG. Figure 3 As shown by the dotted arrow in the figure), the direction of the exhaust pressure is from top to bottom (as shown in the figure). Figure 3As shown by the solid arrow in the figure, the exhaust pressure acts on the center of the valve plate 510 through the first through hole 523. During the operation of the scroll compressor, the lubricating oil flows into the gap between the valve plate 510 and the top wall 522 (as shown in the figure). Figure 3 ), forming an oil film for lubrication, which reduces wear between the valve disc 510 and the valve seat 520. Simultaneously, the oil film creates an adhesive force between the valve disc 510 and the top wall 522. When the compression assembly 200 stops exhausting, the exhaust pressure acts on the valve disc 510, tending to tear the oil film. By overcoming the adhesive force of the oil film, the valve disc 510 is separated from the valve seat 520. Due to the provision of the second groove 530, the contact area between the valve disc 510 and the top wall 522 is reduced when the valve disc 510 is in contact with the top wall 522, thereby reducing the magnitude of the adhesive force between the valve disc 510 and the top wall 522. Therefore, when the compression assembly 200 stops exhausting, the valve disc 510, under the action of the exhaust pressure, can smoothly fall off the top wall 522 of the valve seat 520 and move downward along the first groove 521, thereby closing the exhaust port 221 of the compression assembly 200. This reduces the risk of the valve disc 510 failing to fall off, which could cause the motor 400 to reverse.

[0052] Reference Figure 2 and Figure 4 As shown, the valve seat 520 of an embodiment of the present invention includes a stopper 524 and two mounting portions 525. The two mounting portions 525 are respectively connected to the left and right sides of the stopper 524. The two mounting portions 525 are fixedly connected to the compression assembly 200. For example, the mounting portion 525 is provided with a mounting hole 5251. The mounting hole 5251 extends vertically through the mounting portion 525. Bolts are inserted into the mounting hole 5251 and fixedly connected to the fixed scroll 220. The stopper 524 is formed as a top wall 522. The opposing side walls of the two mounting portions 525 form part of the side walls of the first groove 521. Therefore, the gap between the inner side walls of the two mounting portions 525 allows the exhaust port 221 to exhaust air into the housing 100. It can be understood that the stopper 524 and the two mounting portions 525 are integrally formed, which increases the structural strength of the valve seat 520.

[0053] Reference Figure 3 As shown, in one embodiment of the present invention, the valve seat 520 has a flat top wall 522 on the side facing the valve disc 510. That is, the contact surface between the valve seat 520 and the valve disc 510 is a flat surface that is perpendicular to the vertical direction. This arrangement reduces the risk of bending, deformation, or twisting of the valve disc 510 when it strikes the top wall 522, thereby extending the service life of the valve disc 510 and, consequently, the scroll compressor.

[0054] Reference Figure 4 and Figure 5As shown, in one embodiment of the valve seat 520 of the present invention, the second groove body 530 includes a first annular groove 531. The first annular groove 531 is arranged circumferentially around the first through hole 523 and is circumferentially connected. The first annular groove 531 is located between the peripheral wall of the first through hole 523 and the peripheral wall of the first groove body 521, that is, located in the middle of the top wall 522. It is not connected to the first through hole 523 and does not abut the peripheral wall of the first groove body 521. The first annular groove 531 of this embodiment has a large designable area, which facilitates processing, thereby further reducing the contact area between the valve disc 510 and the top wall 522 when the valve disc 510 is in contact with the top wall 522. Furthermore, the valve disc 510 is subjected to uniform force when acting on the top wall 522, which facilitates the valve disc 510 to separate from the valve seat 520.

[0055] Reference Figure 4 and Figure 5 As shown, the valve seat 520 of the present embodiment of the present invention has a top wall 522 provided with a second through hole 526. The second through hole 526 may be one, two, three, or more, and is not specifically limited herein. The second through hole 526 is disposed within the first annular groove 531 and extends vertically through the top wall 522, allowing the interior of the housing 100 to communicate with the first annular groove 531 through the second through hole 526. The provision of the second through hole 526 increases downward thrust. Exhaust pressure can act on the valve disc 510 through the second through hole 526, increasing the force required to break free of the adhesive force and making it easier for the valve disc 510 to separate from the valve seat 520. Furthermore, lubricating oil can also be introduced through the second through hole 526, facilitating oil flow between the valve disc 510 and the top wall 522, thereby enhancing lubrication between the valve disc 510 and the valve seat 520.

[0056] Reference Figure 6As shown, in another embodiment of the valve seat 520 of the present invention, the second groove body 530 includes a first annular groove 531 and at least one first radial groove 532. The first annular groove 531 is located between the peripheral wall of the first through hole 523 and the peripheral wall of the first groove body 521. The structure and function of the first annular groove 531 can be understood with reference to the previous embodiment, and to avoid repetition, they will not be described again here. The first radial groove 532 extends radially along the first through hole 523. There can be one, two, three, or more first radial grooves 532, which are not specifically limited here. For example, there are four first radial grooves 532, and the four first radial grooves 532 are spaced apart along the circumference of the first through hole 523. One end of the first radial groove 532 extends to the first through hole 523, and the other end of the first radial groove 532 extends to the first annular groove 531, so that the first annular groove 531 is connected to the first through hole 523 through the first radial groove 532. The first radial groove 532 can reduce the contact area between the valve disc 510 and the top wall 522 when the valve disc 510 is attached to the top wall 522, thereby reducing the amplitude of the adhesion force between the valve disc 510 and the top wall 522; at the same time, it can reduce the fluid resistance of the lubricating oil entering the valve disc 510 and the valve seat 520, making it more convenient to enter the oil between the valve disc 510 and the top wall 522, thereby improving the lubrication effect between the valve disc 510 and the valve seat 520.

[0057] Reference Figure 7 As shown, in another embodiment of the valve seat 520 of the present invention, the second groove body 530 includes multiple circumferential grooves 533. The multiple circumferential grooves 533 are arranged in an arc shape, a straight line shape, or a multi-segment linear shape along the circumference of the first through hole 523. The specific design can be based on actual needs and is not specifically limited here. The multiple circumferential grooves 533 are spaced apart along the circumference of the first through hole 523 and are not connected to each other. The top wall 522 is provided with multiple third through holes 527. The third through holes 527 extend vertically through the top wall 522, and each circumferential groove 533 has at least one third through hole 527. The third through holes 527 allow the internal cavity of the housing 100 to communicate with the multiple circumferential grooves 533 through the multiple third through holes 527. In addition, the exhaust pressure can act on the valve disc 510 through the third through holes 527, increasing the force that helps the valve disc 510 break away from the adhesion force, making it easier for the valve disc 510 to separate from the valve seat 520. In addition, lubricating oil can also enter through the third through hole 527 , which is conducive to entering the space between the valve plate 510 and the top wall 522 , thereby improving the lubrication effect between the valve plate 510 and the valve seat 520 .

[0058] Reference Figure 8As shown, in another embodiment of the valve seat 520 of the present invention, the second groove body 530 includes a second annular groove 534 and a third annular groove 535. The second annular groove 534 and the third annular groove 535 are arranged circumferentially around the first through hole 523. The second annular groove 534 is circumferentially connected, and the third annular groove 535 is circumferentially connected. The first annular groove 531 and the second annular groove 534 can both reduce the contact area between the valve disc 510 and the top wall 522 when the valve disc 510 is in contact with the top wall 522. This also ensures that the force applied to the valve disc 510 on the top wall 522 is uniform, thereby facilitating the valve disc 510 to separate from the valve seat 520. A second annular groove 534 is disposed around the outer side of the peripheral wall of the first through-hole 523 and communicates with the first through-hole 523. The provision of the second annular groove 534 allows exhaust pressure to act on the valve disc 510 through both the first through-hole 523 and the second annular groove 534, thereby increasing the force exerted on the valve disc 510 to break free from the adhesive force and making it easier for the valve disc 510 to separate from the valve seat 520. Furthermore, lubricating oil can also be easily transferred outward through the second annular groove 534, facilitating oil flow between the valve disc 510 and the top wall 522, thereby enhancing the lubrication between the valve disc 510 and the valve seat 520. The third annular groove 535 is arranged around the inner side of the peripheral wall of the first groove body 521. When the valve disc 510 is tightly attached to the top wall 522, part of the structure of the third annular groove 535 is located outside the outer edge of the valve disc 510. Therefore, the lubricating oil can easily flow inward through the third annular groove 535, which is conducive to the flow of oil between the valve disc 510 and the top wall 522, thereby improving the lubrication effect between the valve disc 510 and the valve seat 520.

[0059] In another embodiment of the present invention, the valve seat 520 includes a second groove body 530 including a second annular groove 534. The second annular groove 534 is disposed around the outer side of the peripheral wall of the first through hole 523 and communicates with the first through hole 523. The structure and function of the second annular groove 534 can be understood with reference to the previous embodiment and will not be described again here to avoid repetition.

[0060] In another embodiment of the present invention, the valve seat 520 and the second groove body 530 include a third annular groove 535, which is arranged around the inner side of the peripheral wall of the first groove body 521. The structure and function of the third annular groove 535 can be understood with reference to the previous embodiment, and will not be described again to avoid repetition.

[0061] Reference Figure 9As shown, in another embodiment of the valve seat 520 of the present invention, the second groove body 530 includes at least one second radial groove 536, which is connected to the first through-hole 523. The second radial groove 536 may be provided with one, two, three, or more second radial grooves, which are not specifically limited here. One end of the second radial groove 536 extends to the first through-hole 523, and the other end of the second radial groove 536 is arranged radially along the first through-hole 523 in a curved, straight, or multi-segmented shape. The specific design can be based on practical needs and is not specifically limited here. The second radial groove 536 reduces the contact area between the valve disc 510 and the top wall 522 when the valve disc 510 is in contact with the top wall 522, thereby reducing the magnitude of the adhesion force between the valve disc 510 and the top wall 522. Furthermore, the provision of the second radial groove 536 allows exhaust pressure to act on the valve disc 510 through the first through-hole 523 and the second radial groove 536, increasing the force that helps the valve disc 510 break free from the adhesion force, making it easier for the valve disc 510 to separate from the valve seat 520.

[0062] Reference Figure 9 As shown, the valve seat 520 of the present embodiment has a plurality of second radial grooves 536 , each of which is spaced apart along the circumference of the first through hole 523. For example, four second radial grooves 536 are spaced apart along the circumference of the first through hole 523. The plurality of second radial grooves 536 are in the shape of straight strips extending radially along the first through hole 523. Lubricating oil can therefore be easily transferred outward through the second radial grooves 536 , facilitating oil flow between the valve disc 510 and the top wall 522 and improving lubrication between the valve disc 510 and the valve seat 520.

[0063] Reference Figure 1 As shown, a scroll compressor according to an embodiment of the present invention includes a compression assembly 200 and an exhaust assembly 500 according to the above embodiment. The compression assembly 200 includes a fixed scroll 220 and an orbiting scroll 210. A compression chamber 230 is formed between the fixed scroll 220 and the orbiting scroll 210. The fixed scroll 220 is provided with an exhaust port 221 that communicates with the compression chamber 230. The exhaust assembly 500 is mounted on the fixed scroll 220.

[0064] The scroll compressor of the present invention adopts the exhaust assembly 500 of the first embodiment. When the exhaust assembly 500 is exhausting, the force of the refrigerant discharged upward from the exhaust port 221 is greater than the exhaust pressure within the housing 100. The valve plate 510 is tightly attached to the top wall 522 of the valve seat 520. The exhaust pressure is directed from top to bottom and acts on the center of the valve plate 510 through the first through hole 523. During the operation of the scroll compressor, lubricating oil flows between the valve plate 510 and the top wall 522 through the first through hole 523, forming an oil film for lubrication, which is used to reduce wear between the valve plate 510 and the valve seat 520. At the same time, the oil film acts on the valve plate 510 and the top wall 522 to form an adhesion force. When the exhaust assembly 500 stops exhausting, the exhaust pressure acts on the valve plate 510, tending to tear the oil film. By overcoming the adhesion force of the oil film, the valve plate 510 is separated from the valve seat 520. Due to the setting of the second groove body 530, the contact area between the valve plate 510 and the top wall 522 is reduced when the valve plate 510 is attached to the top wall 522, thereby reducing the amplitude of the adhesion force between the valve plate 510 and the top wall 522. Therefore, when the compression assembly 200 stops exhausting, the valve plate 510 can smoothly fall off from the top wall 522 of the valve seat 520 under the action of the exhaust pressure, and move downward along the first groove body 521 to close the exhaust port 221 of the compression assembly 200, reducing the risk of the valve plate 510 failing to fall off and causing the motor 400 to reverse.

[0065] Since the scroll compressor of the embodiment of the present invention adopts all the technical solutions of the exhaust assembly 500 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0066] A refrigeration device according to an embodiment of the present invention includes the scroll compressor according to the above embodiment. The refrigeration device according to this embodiment may be an air conditioner, a refrigerator, a heat pump, or other device that uses the scroll compressor according to this embodiment.

[0067] The refrigeration equipment of the embodiment of the present invention adopts the scroll compressor of the embodiment of the second aspect, and the scroll compressor includes an exhaust assembly 500. The exhaust assembly 500 is provided with a second groove body 530 on the top wall 522 of the first groove body 521 on the valve seat 520 for cooperating with the movement of the valve plate 510. On the projection surface projected along the movement direction of the valve plate 510, at least part of the projection of the second groove body 530 is located within the projection of the valve plate 510. Due to the setting of the second groove body 530, the contact area between the valve plate 510 and the top wall 522 is reduced when the valve plate 510 is attached to the top wall 522, thereby reducing the amplitude of the adhesion force between the valve plate 510 and the top wall 522. Therefore, when the scroll compressor stops exhausting, the valve plate 510 can smoothly fall off from the valve seat 520 and close the exhaust port 221 of the compression assembly 200, reducing the risk of the valve plate 510 failing to fall off and causing the motor 400 to reverse.

[0068] Since the scroll compressor of the embodiment of the present invention adopts all the technical solutions of the exhaust assembly 500 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0069] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Exhaust assembly, used for compression assembly of scroll compressor, characterized in that, include: The valve seat is provided with a first groove body, the groove of the first groove body faces the exhaust port of the compression assembly, and the top wall of the first groove body is provided with a first through hole; a valve plate installed in the first tank body, the valve plate being able to move between the exhaust port and the top wall to open or close the exhaust port; A second groove body is provided on the side of the top wall facing the valve disc, and on a projection surface projected along the movement direction of the valve disc, at least a portion of the projection of the second groove body is located within the projection of the valve disc.

2. The exhaust assembly according to claim 1, characterized in that: The second groove body includes a first annular groove, and the first annular groove is located between the peripheral wall of the first through hole and the peripheral wall of the first groove body.

3. The exhaust assembly according to claim 2, wherein: The top wall is provided with at least one second through hole, and the second through hole is located in the first annular groove.

4. The exhaust assembly according to claim 2, wherein: The second groove body further includes at least one first radial groove, one end of the first radial groove extends to the first through hole, and the other end extends to the first annular groove.

5. The exhaust assembly according to claim 1, wherein: The second groove body includes a plurality of circumferential grooves, which are arranged at intervals along the circumference of the first through hole. The top wall is provided with a plurality of third through holes, and each of the circumferential grooves is provided with at least one third through hole.

6. The exhaust assembly according to claim 1, wherein: The second groove body includes a second annular groove, which is arranged around the outer side of the peripheral wall of the first through hole and communicates with the first through hole.

7. The exhaust assembly according to claim 6, characterized in that: The second groove body includes a third annular groove, and the third annular groove is arranged around the inner side of the peripheral wall of the first groove body.

8. The exhaust assembly according to claim 1, wherein: The second slot body includes at least one second radial slot, and one end of the second radial slot extends to the first through hole.

9. The exhaust assembly according to claim 8, characterized in that: There are a plurality of second radial grooves, which are spaced apart along the circumference of the first through hole. The plurality of second radial grooves are in a straight strip shape and extend along the radial direction of the first through hole.

10. The exhaust assembly according to claim 1, wherein: A side of the top wall facing the valve plate is a plane.

11. The exhaust assembly according to claim 1, wherein: The valve seat includes a limiting portion and mounting portions respectively connected to both sides of the limiting portion, the two mounting portions are fixedly connected to the compression assembly, the limiting portion is formed as the top wall, and the side walls opposite to the two mounting portions are formed as partial side walls of the first trough body.

12. A scroll compressor, characterized in that: include: A compression assembly includes a fixed scroll and an orbiting scroll, wherein a compression chamber is formed between the fixed scroll and the orbiting scroll, and the fixed scroll is provided with an exhaust port communicating with the compression chamber; The exhaust assembly according to any one of claims 1 to 11 is mounted on the fixed scroll.

13. Refrigeration equipment, characterized in that: Including the scroll compressor according to claim 12.

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