CN212296781U - Stopper, exhaust subassembly, compressor and refrigerating system - Google Patents

Abstract

An embodiment of the utility model provides a stopper, exhaust subassembly, compressor and refrigerating system. The stopper is used for the exhaust subassembly. The stopper includes a body portion and a recessed portion. The body portion has a mounting end and a free end that face away from each other, the mounting end of the body portion being connectable with an exhaust valve of an exhaust assembly. The concave part is positioned on the surface of the body part, and the distance between the concave part and the mounting end of the body part is smaller than the distance between the concave part and the free end of the body part. The embodiment of the utility model provides a stopper is based on target noise frequency mainly, guaranteeing that modal frequency is unchangeable, only increases under the prerequisite of stopper thickness, and the design depressed part can promote stopper structural rigidity. This stopper structure design on the one hand is simple, and technology manufacturing is simple, and is with low costs, the batch production of being convenient for, and on the other hand can reduce the vibration response of stopper, does not lead to other frequency noises to worsen simultaneously, and centering, high frequency noise have obvious reducing action.

Description

Stopper, exhaust subassembly, compressor and refrigerating system

Technical Field

The embodiment of the utility model provides a relate to compressor technical field, particularly, relate to a stopper, an exhaust subassembly, a compressor and a refrigerating system.

Background

At present, most compressors are designed towards miniaturization and high rotating speed, the problem of noise is increasingly prominent when the compressors are operated, an exhaust valve plate reciprocates between a lift limiter and a valve seat under the action of air flow, and the air flow excites the limiter to vibrate to generate noise.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims at solving one of the technical problem that exists among the prior art at least.

To this end, a first aspect of an embodiment of the present invention provides a stopper.

A second aspect of the embodiments of the present invention provides an exhaust assembly.

A third aspect of embodiments of the present invention provides a compressor.

A fourth aspect of embodiments of the present invention provides a refrigeration system.

In view of this, according to a first aspect of embodiments of the present invention, there is provided a stopper for an exhaust assembly. The stopper includes a body portion and a recessed portion. The body portion has a mounting end and a free end that face away from each other, the mounting end of the body portion being connectable with an exhaust valve of an exhaust assembly. The concave part is positioned on the surface of the body part, and the distance between the concave part and the mounting end of the body part is smaller than the distance between the concave part and the free end of the body part.

The embodiment of the utility model provides a stopper specifically is applied to the exhaust subassembly of compressor. The exhaust valve of the exhaust assembly is provided with an exhaust port which can be communicated with a cylinder cavity of the compressor, and the exhaust port is used for discharging refrigerant in the cylinder cavity. The structure of the body portion can refer to the stopper in the related art, and the mounting end thereof is connected with the exhaust valve, so that the body portion forms a cantilever structure. The stopper is arranged corresponding to the exhaust port, and when the airflow of the high-pressure gaseous refrigerant is exhausted from the exhaust port, the airflow can be in contact with the stopper, so that the stopper is excited to vibrate. The simple means of properly increasing the thickness of the limiter can play a role in obviously improving the rigidity of the limiter, further reduce the vibration response of the limiter, contribute to reducing the vibration noise of the limiter and further reduce the target frequency noise of an exhaust assembly applying the limiter. However, according to the formula of the modal frequency, wherein Ω is the modal frequency, k is the stiffness, and m is the mass, it is known that the modal frequency is greatly improved because the mass of the stopper is slightly increased and the stiffness is greatly improved, for example, when the thickness of the stopper is increased from 2.9mm to 3.4mm, the modal frequency is increased from about 2000Hz to about 2600Hz, which is close to the medium-high frequency noise, and the medium-high frequency noise is further deteriorated. By providing a recessed portion on the surface of the body portion (corresponding to a structure obtained by increasing the thickness of the stopper in the related art), that is, by removing a part of the structure of the body portion, the mass of the body portion can be reduced by a small amount and the rigidity thereof can be weakened. The main body part is used as a cantilever structure, and the recessed part is arranged at a position close to the mounting end of the main body part, so that compared with the position arranged at a position close to the free end of the main body part, the rigidity of the main body part can be obviously reduced (but still higher than the rigidity before the thickness is not increased), namely, the rigidity of the main body part is obviously reduced under the condition of slightly reducing the mass of the main body part, the modal frequency of the finally obtained stopper falls back to about 2000Hz, and the middle-high frequency noise is not deteriorated. The embodiment of the utility model provides a stopper is based on target noise frequency mainly, guaranteeing that modal frequency is unchangeable, only increases under the prerequisite of stopper thickness, and the design depressed part can promote stopper structural rigidity. This stopper structure design on the one hand is simple, and technology manufacturing is simple, and is with low costs, the batch production of being convenient for, and on the other hand can reduce the vibration response of stopper, does not lead to other frequency noises to worsen simultaneously, and centering, high frequency noise have obvious reducing action.

In addition, according to the utility model discloses above-mentioned technical scheme provides a stopper still has following additional technical characteristics:

in one possible design, the recess is a groove.

In this design, the recess depth and shape of the recess portion are not limited as long as a partial structure of the body portion can be removed. The concave part is specifically arranged into a groove with regular shape and definite depth, so that the structure of the stopper is simple, the stopper is easy to produce, and the stopper can be conveniently produced in batch. In particular, the recess may be a kidney slot, which may extend along the length of the body portion. The groove may be any shape such as a trapezoidal groove, a circular groove, a square groove, or a diamond groove, as long as the stopper can reduce the noise of the target frequency.

In one possible design, the recess is a through slot.

In this design, the recess is particularly provided as a through-slot, i.e. may extend along the surface of the body portion and through the body portion. Under the condition that the reduction range of the mass of the body part is consistent, compared with the closed groove, the through groove has stronger weakening effect on the rigidity of the body part, and is beneficial to reducing the modal frequency of the limiter, so that the noise deterioration of other frequencies can be ensured not to be caused.

In one possible design, the recess is symmetrical about a central axis of the body portion.

In the design, the shape of the concave part is limited to be symmetrical about the central axis of the body part (namely the central axis of the stopper), so that the symmetry of the whole structure of the stopper can be ensured. On the one hand, this structural design can avoid the reliability and the vibration noise problem that two parts atress uneven arouses about the axis of this somatic part, helps promoting product reliability. On the other hand, the design can make the whole structure of the stopper simple, the stopper is easy to produce, and the stopper can be produced in batch conveniently.

In one possible design, the body part is provided with a limiting surface, the limiting surface can face the exhaust valve, and the concave part is arranged to avoid the limiting surface.

In the design, the exhaust valve specifically comprises a valve seat and an exhaust valve plate, the exhaust port is arranged on the valve seat, and the exhaust valve plate is used for opening or closing the exhaust port. The stopper is connected with the exhaust valve, is specifically located one side that the exhaust valve block deviates from the disk seat, and the stopper can be as spacing face towards the partial surface of exhaust valve block. When the cylinder cavity of the compressor exhausts outwards, the exhaust valve sheet is jacked to the limiting surface of the limiter by the exhausted high-pressure gas to limit the opening degree of the exhaust valve sheet, and therefore the exhaust valve sheet can impact the limiting surface heavily under the action of the high-pressure gas. The concave part is arranged in the area where the body part avoids the limiting surface, the leveling of the limiting surface can be guaranteed, and the stress concentration point of the exhaust valve plate when the exhaust valve plate collides with the limiting surface is reduced, so that the rapid fatigue fracture of the exhaust valve plate is avoided, the reliable work of the exhaust valve plate is ensured, and the service life of the exhaust valve plate is prolonged. Specifically, the recessed portion is disposed on a surface of the main body portion facing away from the limiting surface. Because the surface area of the spacing face of the body part and the surface area deviating from the spacing face are larger, the concave part can be conveniently arranged, and the flexibility of the arrangement scheme is improved. And the surface spans the left side and the right side of the body part by taking the central axis of the body part as a reference, so that the concave part can be symmetrical about the central axis of the body part.

In one possible design, the body part has a first side and a second side which are away from each other, the exhaust valve can be connected to the first side of the body part, the body part comprises an installation part and a bending part, the installation part can be connected with the exhaust valve, the bending part is connected with the installation part, and the bending part is bent towards the second side of the body part. The concave part is positioned on the surface of the mounting part and/or the bending part.

In this design, it is specifically defined that the body portion includes a mounting portion and a bent portion that are connected. The installation department can realize being connected with discharge valve, specifically be connected with discharge valve piece and disk seat simultaneously, and the installation department can be straight structure this moment to with discharge valve zonulae occludens. The portion of bending takes place to bend for the installation department, specifically is towards not setting up the second side bending of discharge valve, corresponds to the gas vent, is located the top of gas vent. The wedge-shaped space enclosed between the bending part and the valve seat is the movable range of the exhaust valve plate, and the bending part can limit the upper limit of the movable position of the exhaust valve plate so as to limit the opening degree of the exhaust valve plate. Namely, the surface of the bending part facing to the second side of the body part forms a limiting surface. The end of the mounting part far away from the bending part is the mounting end of the body part, and the end of the bending part far away from the mounting part is the free end of the body part. Through setting up the depressed part on the surface of installation department, can fully ensure that the depressed part is close to the installation end setting of this somatic part to obviously reduce its rigidity under the condition of a small amount of reduction this somatic part quality, thereby can be in the whole thickness of increase stopper and show under the condition that promotes its rigidity, make the modal frequency of stopper fall back, thereby can enough reduce the vibration response of stopper, do not lead to other frequency noise to worsen simultaneously, centering, high frequency noise have obvious reducing effect. The depressed part can set up on the surface of the portion of bending equally to enrich the arrangement scheme of depressed part, satisfy different actual structure demands. It is understood that, in order to ensure that the recess is provided near the mounting end of the body portion, the recess should be provided as close as possible to the mounting portion when the recess is provided on the surface of the bent portion. In addition, the depressed part also can be located the surface of installation department and the portion of bending simultaneously to further richen the arrangement scheme of depressed part.

Specifically, the number of the recesses may be at least one for flexible arrangement. When the quantity of depressed part is at least two, the shape of each depressed part can be the same completely to simplify the structure, also can not be the same completely, can be partly the same, also can be different, so that set up the depressed part according to actual structure, promote design accuracy. In the case where the recessed portions are located on the surface of the mounting portion, all of the recessed portions are provided on the surface of the mounting portion. In the case where the recess is located on the surface of the bent portion, that is, all the recesses are provided on the surface of the bent portion. To the recessed part simultaneously be located the condition on installation department and the surface of the portion of bending, can be that the surface of installation department and the portion of bending is strideed across simultaneously to a recessed part, on the one hand can provide sufficient space and set up the recessed part, on the other hand, at the hookup location of installation department and the portion of bending, the range of buckling of this somatic part is great, set up the recessed part here, the weakening effect to the rigidity of this somatic part is also stronger, can reduce the size and the degree of depth of recessed part, also reduce the volume of removal to the structure of this somatic part exactly, with the effect that promotes the modal frequency that reduces the stopper. The number of the concave parts can be at least two, and the concave parts are distributed on the surfaces of the mounting part and the bending part, or the two situations can exist. The above is the utility model discloses an implementation falls into the utility model discloses an within the scope of protection.

In one possible design, the stopper further comprises: and the air vent penetrates through the bent part along the thickness direction of the bent part.

In this design, the stopper still includes the blow vent, and the blow vent setting is on the portion of bending, and the high-pressure gas of the gas vent exhaust from discharge valve can pass the blow vent to weaken the impact of high-pressure gas to the stopper. That is to say, the air vent can balance the atmospheric pressure of stopper both sides, avoids stopper both sides atmospheric pressure inequality and causes stopper self structure impaired.

It should be noted that the width of the portion of the bent portion where the vent is provided is greater than the width of the other portions.

According to the utility model discloses the second aspect of the embodiment provides an exhaust subassembly, including the stopper that any above-mentioned design provided, therefore have all beneficial effects of this stopper, no longer describe herein.

According to the third aspect of the embodiment of the present invention, there is provided a compressor, which comprises the exhaust assembly provided by any one of the above designs, and therefore has all the advantages of the exhaust assembly, which is not described herein again.

According to the fourth aspect of the embodiment of the present invention, there is provided a refrigeration system, including the compressor provided by any one of the above designs, thereby having all the advantages of the compressor, which will not be described herein again.

Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic view of a partial structure of a compressor according to an embodiment of the present invention;

figure 2 shows a top view of a stop according to one embodiment of the present invention;

fig. 3 shows a schematic structural view of a stopper according to an embodiment of the present invention;

figure 4 shows a top view of a stop according to another embodiment of the present invention;

fig. 5 shows a schematic structural view of a stopper according to another embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

1 exhaust component, 100 stopper, 110 body part, 112 installation part, 1122 assembly port, 114 bending part, 1142 spacing face, 120 depressed part, 130 vent, 200 exhaust valve, 210 exhaust port, 220 valve seat, 230 exhaust valve plate, 300 fastener, 4 bearing.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A stopper 100, a discharge assembly 1, a compressor, and a refrigeration system provided according to some embodiments of the present invention will be described below with reference to fig. 1 to 5.

As shown in fig. 1, an embodiment of the first aspect of the present invention provides a stopper 100 for an exhaust assembly 1. The stopper 100 includes a body portion 110 and a recessed portion 120. The body portion 110 has a mounting end and a free end facing away from each other, the mounting end of the body portion 110 being connectable with the exhaust valve 200 of the exhaust assembly 1. The recess 120 is located on the surface of the body 110, and the distance between the recess 120 and the mounting end of the body 110 is smaller than the distance between the recess 120 and the free end of the body 110.

The embodiment of the utility model provides a stopper 100 specifically is applied to the exhaust subassembly 1 of compressor. The discharge valve 200 of the discharge assembly 1 has a discharge port 210, the discharge port 210 may communicate with a cylinder chamber of the compressor, and the discharge port 210 is used for discharging refrigerant in the cylinder chamber. The structure of the body 110 can refer to a stopper of the related art, and the mounting end thereof is connected to the exhaust valve 200, so that the body 110 forms a cantilever structure. The stopper 100 is disposed corresponding to the discharge port 210, and when the gas flow of the high-pressure gaseous refrigerant is discharged from the discharge port 210, it comes into contact with the stopper 100, so that the stopper 100 is excited to vibrate. By a simple means of properly increasing the thickness of the stopper 100, the stopper 100 can have an effect of significantly increasing the rigidity of the stopper 100, thereby reducing the vibration response of the stopper 100, contributing to reducing the vibration noise of the stopper 100, and further reducing the target frequency noise of the exhaust assembly 1 to which the stopper 100 is applied. But according to formula of modal frequency

It is known that, since the mass of the stopper 100 is increased slightly and the stiffness is increased greatly, the modal frequency of the stopper 100 is increased greatly, for example, when the thickness of the stopper 100 is increased from 2.9mm to 3.4mm, the modal frequency is increased from about 2000Hz to about 2600Hz, which is close to the medium-high frequency noise, and the medium-high frequency noise is deteriorated. By providing the recess 120 on the surface of the body portion 110 (corresponding to a structure obtained by increasing the thickness of the stopper in the related art), that is, by removing a part of the structure of the body portion 110, the mass of the body portion 110 can be reduced by a small amount and the rigidity thereof can be weakened. BodyThe portion 110 is a cantilever structure, and by specifically disposing the recess 120 at a position close to the mounting end of the main body portion 110, compared with the position disposed at a position close to the free end of the main body portion 110, the rigidity of the main body portion 110 can be significantly reduced (but still higher than the rigidity before the thickness is not increased), that is, the rigidity of the main body portion 110 is significantly reduced under the condition of slightly reducing the mass of the main body portion 110, so that the modal frequency of the finally obtained stopper 100 falls back to about 2000Hz, and thus the middle-high frequency noise is not deteriorated. The embodiment of the utility model provides a stopper 100 is based on target noise frequency mainly, guaranteeing that modal frequency is unchangeable, only increase under the prerequisite of stopper 100 thickness, design depressed part 120 can promote stopper 100 structural rigidity. This stopper 100 structure design on the one hand is simple, and technology manufacturing is simple, and is with low costs, the batch production of being convenient for, and on the other hand can reduce stopper 100's vibration response, does not lead to other frequency noises to worsen simultaneously, and centering, high frequency noise have obvious reducing effect.

In some embodiments, specifically, the recess 120 is a groove.

In this embodiment, the recess depth and shape of the recess 120 are not limited as long as a partial structure of the body part 110 can be removed. The recess 120 is a groove with a regular shape and a definite depth, so that the structure of the stopper 100 is simple, the stopper is easy to produce, and the stopper 100 can be produced in batch. Specifically, the groove may be a kidney-shaped groove as shown in fig. 2 and 3, and the kidney-shaped groove may extend along the length direction of the body part 110. The recess may be any shape such as a trapezoidal groove, a circular groove, a square groove, or a diamond groove, as long as the stopper 100 can reduce the noise of the target frequency.

In some embodiments, in particular, as shown in fig. 4 and 5, the recess is a through slot.

In this embodiment, the recess is specifically configured as a through-slot, that is, may extend along a surface of the body portion 110 and through the body portion 110. In the case where the reduction width of the mass of the body portion 110 is uniform, the through groove has a stronger weakening effect on the rigidity of the body portion 110 than the closed groove, and contributes to reducing the modal frequency of the stopper 100, thereby making it possible to ensure that no deterioration of noise at other frequencies is caused.

In some embodiments, specifically, as shown in fig. 2 and 4, the recess 120 is symmetrical about the central axis L of the body portion 110.

In this embodiment, the recess 120 is defined symmetrically about the central axis L of the body 110 (i.e., the central axis of the stopper 100), which ensures the overall structural symmetry of the stopper 100. On one hand, the structural design can avoid the problems of reliability and vibration noise caused by uneven stress on the left part and the right part of the central axis L of the body part 110, and is beneficial to improving the reliability of products. On the other hand, the design can make the overall structure of the stopper 100 simple, and the stopper is easy to produce and convenient for mass production of the stopper 100.

In some embodiments, specifically, as shown in fig. 3 and 5, the body portion 110 has a position-limiting surface 1142, the position-limiting surface 1142 can face the exhaust valve 200, and the recess 120 is disposed away from the position-limiting surface 1142.

In this embodiment, the exhaust valve 200 specifically includes a valve seat 220 and an exhaust valve plate 230, the exhaust port 210 is disposed on the valve seat 220, and the exhaust valve plate 230 is used for opening or closing the exhaust port 210. The stopper 100 is connected to the exhaust valve 200, and is specifically located on a side of the exhaust valve plate 230 away from the valve seat 220, and a part of the surface of the stopper 100 facing the exhaust valve plate 230 can be used as a limiting surface 1142. When the cylinder cavity of the compressor discharges air, the discharge valve plate 230 is pushed against the limit surface 1142 of the stopper 100 by the discharged high-pressure gas to limit the opening degree of the discharge valve plate 230, so that the discharge valve plate 230 may heavily impact the limit surface 1142 under the action of the high-pressure gas. The concave part 120 is arranged in the area of the body part 110 avoiding the limiting surface 1142, so that the leveling of the limiting surface 1142 can be ensured, the stress concentration point when the exhaust valve plate 230 impacts the limiting surface 1142 is reduced, the rapid fatigue fracture of the exhaust valve plate 230 is avoided, the reliable work of the exhaust valve plate 230 is ensured, and the service life of the exhaust valve plate 230 is prolonged. Specifically, the recess 120 is disposed on a surface of the body 110 facing away from the limiting surface 1142. Because the surface areas of the position-limiting surface 1142 and the surface departing from the position-limiting surface 1142 of the body 110 are large, the recess 120 can be conveniently arranged, and the flexibility of the arrangement scheme is improved. As shown in fig. 2 and 4, the surface spans the left and right sides of the main body 110 with reference to the central axis L of the main body 110, and the recess 120 can be symmetrical with respect to the central axis L of the main body 110.

In some embodiments, specifically, as shown in fig. 1 and 2, the body portion 110 has a first side and a second side facing away from each other, the exhaust valve 200 can be connected to the first side of the body portion 110, the body portion 110 includes a mounting portion 112 and a bent portion 114, the mounting portion 112 can be connected to the exhaust valve 200, the bent portion 114 is connected to the mounting portion 112, and the bent portion 114 is bent toward the second side of the body portion 110. Wherein, the concave part 120 is located on the surface of the mounting part 112 and/or the bending part 114.

In this embodiment, the main body 110 is specifically defined to include a mounting portion 112 and a bending portion 114 connected to each other. The mounting portion 112 can be connected to the exhaust valve 200, and particularly, connected to the exhaust valve plate 230 and the valve seat 220 at the same time, and at this time, the mounting portion 112 may have a straight structure to be tightly connected to the exhaust valve 200. The bending portion 114 is bent relative to the mounting portion 112, specifically, toward a second side where the exhaust valve 200 is not disposed, and is located above the exhaust port 210 corresponding to the exhaust port 210. The wedge-shaped space enclosed between the bending portion 114 and the valve seat 220 is the movable range of the exhaust valve plate 230, and the bending portion 114 can limit the upper limit of the movable position of the exhaust valve plate 230 to limit the opening degree of the exhaust valve plate 230. That is, the surface of the bending portion 114 facing the second side of the main body portion 110 forms the limiting surface 1142. The end of the mounting portion 112 away from the bending portion 114 is the mounting end of the main body portion 110, and the end of the bending portion 114 away from the mounting portion 112 is the free end of the main body portion 110. The recessed part 120 is arranged on the surface of the mounting part 112, so that the recessed part 120 can be sufficiently ensured to be arranged close to the mounting end of the body part 110, the rigidity of the body part 110 is obviously reduced under the condition of slightly reducing the mass of the body part 110, the modal frequency of the stopper 100 can fall back under the condition of obviously improving the rigidity by increasing the whole thickness of the stopper 100, the vibration response of the stopper 100 can be reduced, other frequency noises are not deteriorated, and the centering and high-frequency noises are obviously reduced. The concave portion 120 can also be disposed on the surface of the bending portion 114, so as to enrich the disposition scheme of the concave portion 120 and meet different actual structural requirements. It is understood that, in order to ensure that the recess 120 is disposed near the mounting end of the main body 110, when the recess 120 is disposed on the surface of the bending portion 114, it should be disposed as close as possible to the mounting portion 112. In addition, the concave portion 120 can also be located on the surfaces of the mounting portion 112 and the bending portion 114 at the same time, so as to further enrich the arrangement scheme of the concave portion 120.

Specifically, the number of the recesses 120 may be at least one for flexible arrangement. When the number of the concave parts 120 is at least two, the shapes of the concave parts 120 may be completely the same to simplify the structure, or may not be completely the same, that is, may be partially the same, or may be different from each other, so that the concave parts 120 are arranged according to the actual structure, thereby improving the design accuracy. In the case where the recessed portions 120 are located on the surface of the mounting portion 112, all of the recessed portions 120 are disposed on the surface of the mounting portion 112. In the case where the recess 120 is located on the surface of the bending portion 114, that is, all the recesses 120 are disposed on the surface of the bending portion 114. As for the case where the recessed portion 120 is located on the surface of the mounting portion 112 and the bending portion 114 at the same time, as shown in fig. 2, one recessed portion 120 spans the surface of the mounting portion 112 and the bending portion 114 at the same time, on one hand, a sufficient space can be provided for disposing the recessed portion 120, on the other hand, at the connection position of the mounting portion 112 and the bending portion 114, the bending amplitude of the main body portion 110 is large, the recessed portion 120 is disposed here, the weakening effect on the rigidity of the main body portion 110 is also strong, the size and the depth of the recessed portion 120 can be reduced, that is, the removal amount of the structure of the main body portion 110 is reduced, so as to improve the effect of reducing the modal frequency. The number of the concave portions 120 may be at least two, and the concave portions 120 may be distributed on the surfaces of the mounting portion 112 and the bending portion 114, or both of them may be present. The above is the utility model discloses an implementation falls into the utility model discloses an within the scope of protection.

In some embodiments, specifically, as shown in fig. 2-4, the stopper 100 further comprises: the vent 130, the vent 130 penetrates the bent portion 114 in the thickness direction of the bent portion 114.

In this embodiment, the stopper 100 further includes a vent 130, the vent 130 is disposed on the bent portion 114, and the high-pressure gas discharged from the discharge port 210 of the discharge valve 200 can pass through the vent 130 to attenuate the impact of the high-pressure gas on the stopper 100. That is, the vent 130 can balance the air pressure on both sides of the stopper 100, so as to prevent the structure of the stopper 100 from being damaged due to the unequal air pressure on both sides of the stopper 100.

It should be noted that, as shown in fig. 2, the width of the portion of the bending portion 114 where the vent 130 is disposed is larger than the width of the other portions.

As shown in fig. 1, an embodiment of the second aspect of the present invention provides an exhaust assembly 1, which includes the stopper 100 provided in any of the above embodiments, so as to have all the advantages of the stopper 100, and no further description is provided herein.

Further, the exhaust valve 200 includes a valve seat 220 and an exhaust valve plate 230, the valve seat 220 is provided with an exhaust port 210; the discharge valve plate 230 is connected to the valve seat 220 and can cover the discharge port 210, and the stopper 100 is connected to a side of the discharge valve plate 230 facing away from the valve seat 220. Specifically, the mounting portion 112 of the stopper 100 is connected to the discharge valve sheet 230 and the valve seat 220. The bending portion 114 bends and inclines away from the discharge valve plate 230. The discharge valve plate 230 can control the balance of the air pressure in the cylinder, thereby ensuring the normal operation of the compressor. The discharge valve plate 230 reciprocates between the stopper 100 and the valve seat 220 by the high-pressure gas in the cylinder, thereby opening or closing the discharge port 210.

Further, the mounting portion 112 of the stopper 100 is further provided with a mounting opening 1122, a mounting opening is formed in the exhaust valve 200 at a position corresponding to the mounting opening 1122, the exhaust assembly 1 further comprises a fastening member 300, and the fastening member 300 penetrates through the mounting opening 1122 and the mounting opening to connect the stopper 100 and the exhaust valve 200, so that the stopper 100 and the exhaust valve 200 are reliably connected. Specifically, the fastener 300 is a screw, a rivet, or the like. When the fastening member 300 is a screw, the fitting opening 1122 and the inner wall of the mounting opening are correspondingly threaded such that the screw can be fastened to the stopper 100 and the discharge valve 200 by means of the screw.

An embodiment of the third aspect of the present invention provides a compressor, which includes the exhaust assembly 1 provided in any of the above embodiments, and therefore has all the advantages of the exhaust assembly 1, which is not described herein again.

Specifically, the exhaust valve 200 is connected to the bearing 4, and the valve seat 220 of the exhaust valve 200 may be integrally formed with the bearing 4, that is, the exhaust port 210 may be directly formed on the bearing 4, which helps to simplify the structure, improve the processing efficiency, and improve the connection strength and connection sealing performance between the bearing 4 and the exhaust valve 200, thereby preventing high-pressure gas from leaking from the connection between the bearing 4 and the exhaust valve 200, and helping to ensure reliable operation of the compressor. Taking the rotary compressor as an example, the rotary compressor has an upper bearing and a lower bearing, the upper bearing and the lower bearing seal the cylinder chamber, and the exhaust valve 200 may be disposed on at least one of the upper bearing and the lower bearing to implement different exhaust schemes. That is, the exhaust valve 200 includes three arrangement modes, one is that the number of the exhaust valve 200 is two, two exhaust valves 200 are respectively arranged on the upper bearing and the lower bearing, one is that the exhaust valve 200 is arranged on the upper bearing, and the other is that the exhaust valve 200 is arranged on the lower bearing.

An embodiment of the fourth aspect of the present invention provides a refrigeration system, including the compressor provided by any of the above embodiments, thereby having all the advantages of the compressor, which are not described herein again.

Specifically, a refrigeration system includes a compressor, a condenser, a throttling device, and an evaporator. Specifically, the refrigerant is compressed into a high-temperature and high-pressure gaseous refrigerant in the compressor, the high-temperature and high-pressure gaseous refrigerant is discharged out of the compressor through an exhaust port 210 on a shell of the compressor and then enters the condenser to be condensed and release heat, the high-temperature and high-pressure gaseous refrigerant is gradually converted into a high-pressure liquid refrigerant, the high-pressure liquid refrigerant flows out of the condenser and then enters the throttling device to be throttled, cooled and depressurized, the high-pressure liquid refrigerant is converted into a low-temperature and low-pressure refrigerant in a gas-liquid mixed state, the low-temperature and low-pressure refrigerant flows out of the throttling device and enters the evaporator to absorb heat in the surrounding environment to be continuously evaporated to be converted into a low-pressure gaseous refrigerant, the low-pressure gaseous refrigerant flows out of the evaporator and then enters the compressor again through an air inlet of the compressor, thereby refrigerating the air.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A retainer for an exhaust assembly, the retainer comprising:

a body portion having a mounting end and a free end that face away from each other, the mounting end of the body portion being connectable with an exhaust valve of the exhaust assembly; and

a recessed portion located on a surface of the body portion, a distance between the recessed portion and an installation end of the body portion being smaller than a distance between the recessed portion and a free end of the body portion.

2. The retainer of claim 1,

the depressed part is a groove.

3. The retainer of claim 2,

the groove is a through groove.

4. The retainer of claim 1,

the recessed portion is symmetrical about a central axis of the body portion.

5. The retainer of claim 1,

the body part is provided with a limiting surface, the limiting surface can face the exhaust valve, and the concave part is arranged to avoid the limiting surface.

6. The retainer according to any one of claims 1 to 5,

the body portion having first and second sides facing away from each other, the exhaust valve being connectable to the first side of the body portion, the body portion comprising:

a mounting portion connectable with the exhaust valve; and

the bending part is connected with the mounting part and bends towards the second side of the body part;

the concave part is positioned on the surface of the mounting part and/or the bending part.

7. The retainer of claim 6, further comprising:

and the air vent penetrates through the bending part along the thickness direction of the bending part.

8. An exhaust assembly, comprising:

an exhaust valve; and

a stop according to any one of claims 1 to 7.

9. A compressor, comprising:

a bearing; and

the exhaust assembly of claim 8, said exhaust valve being coupled to said bearing.

10. A refrigeration system, comprising:

the compressor of claim 9.

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