CN212803601U - Exhaust assembly, compressor and refrigeration plant - Google Patents

Abstract

The utility model provides an exhaust subassembly, compressor and refrigeration plant, wherein, exhaust subassembly includes discharge valve and stopper. The exhaust valve is provided with an exhaust port. The stopper includes the installation department that links to each other and the portion of bending, and the installation department is connected on discharge valve, and the portion of bending is buckled towards the direction of keeping away from discharge valve and is corresponding with the gas vent. The thickness of installation department is less than the thickness of the portion of bending. The utility model discloses a thickness of the portion of bending is greater than the thickness of installation department to make the stopper whole be not thickness structure, when the stopper excited vibration, not thickness's stopper can reduce the vibration response of stopper on the one hand, thereby reduces the noise of stopper, and on the other hand only can realize the effect of noise reduction through the thickness that changes the stopper, and structure simple process, low cost is suitable for the volume production.

Description

Exhaust assembly, compressor and refrigeration plant

Technical Field

The utility model relates to a compression equipment technical field particularly, relates to an exhaust subassembly, a compressor and refrigeration plant.

Background

At present, a compressor has an exhaust valve and a cylinder, wherein the exhaust valve is provided with an exhaust port, and the pressure of gas in the cylinder can be maintained to be balanced through the exhaust port, so that the normal operation of the compressor is ensured. However, if the opening degree of the exhaust port is too large or too small, the air pressure in the cylinder is not favorably balanced. For this reason, a stopper is generally used in the conventional compressor to solve the above problem. However, the noise problem of the compressor is exacerbated by the vibration of the retainer which generates noise under the influence of the airflow.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

To this end, a first aspect of the present invention is to provide an exhaust assembly.

A second aspect of the present invention is to provide a compressor.

A third aspect of the present invention is to provide a refrigeration apparatus.

In view of this, according to a first aspect of the present invention, there is provided an exhaust assembly including an exhaust valve and a stopper. The exhaust valve is provided with an exhaust port. The stopper includes the installation department that links to each other and the portion of bending, and the installation department is connected on discharge valve, and the portion of bending is buckled towards the direction of keeping away from discharge valve and is corresponding with the gas vent. The thickness of installation department is less than the thickness of the portion of bending.

The utility model provides an exhaust assembly includes discharge valve and stopper. The exhaust valve is provided with an exhaust port which can be communicated with a cylinder cavity of the compressor and is used for discharging a refrigerant (a refrigerant). The stopper includes the installation department that links to each other and the portion of bending, and the installation department is connected on discharge valve, and the portion of bending links to each other with the installation department, and the portion of bending is towards the direction slope extension of buckling of keeping away from discharge valve, and the portion of bending is corresponding to the gas vent, and the portion of bending is located the top of gas vent. The high-pressure gas can contact with the bending part of the stopper when being discharged from the exhaust port. The utility model discloses a thickness of the portion of bending is greater than the thickness of installation department to make the stopper whole be not uniform thickness structure, on the one hand when the stopper is excited and vibrate, not uniform thickness stopper can reduce the vibration response of stopper, thereby reduce the noise of stopper under the target frequency, meanwhile also can not lead to other frequency noise to worsen, on the other hand only can realize the effect of noise reduction through the thickness that changes the stopper, and simple structure technology, low cost is suitable for the volume production.

In a possible design, further, the bending portion includes at least one bending section, the at least one bending section includes a first bending section and a second bending section, the first bending section is located between the mounting portion and the second bending section, and the thickness of the first bending section is not equal to that of the second bending section.

In this design, the portion of bending includes at least one section of bending, and when the quantity of the section of bending was one, then the thickness of a section of bending is greater than the thickness of installation department. When the quantity of the section of bending is two, two sections of bending include first section of bending and the second section of bending, and first section of bending is connected with the section of bending of installation department and second respectively, and wherein, the thickness of the section of bending of first section of bending and the thickness of the section of bending of second all are greater than the thickness of installation department, and the thickness of the section of bending of first section of bending is unequal with the thickness of the section of bending of second. The method specifically comprises the following two steps: the thickness of the first bending section is larger than that of the second bending section, or the thickness of the second bending section is larger than that of the first bending section. Through the thickness inequality that makes the thickness of first section of bending and the section of bending of second, then the stopper is whole will be divided into the triplex according to the thickness difference, installation department, first section of bending and the section of bending of second promptly, through the unequal thickness setting of many parts, can effectively reduce the vibration response of stopper, reduces the noise of stopper under the target frequency, also can not lead to other frequency noises to worsen with this simultaneously.

In a possible design, further, an absolute value of a difference between thicknesses of the first bending section and the second bending section is greater than or equal to 0.2mm and less than or equal to 1 mm.

In this design, when the thickness of the first bending section is greater than the thickness of the second bending section, the difference in thickness between the first bending section and the second bending section satisfies the above-described relational expression. When the thickness of the second bending section is larger than that of the first bending section, the thickness difference between the second bending section and the first bending section satisfies the relational expression. When the absolute value of the thickness difference between the first bending section and the second bending section is smaller than 0.2mm, the thickness difference between the first bending section and the second bending section is too small, and the corresponding effect of reducing the vibration of the stopper due to unequal thicknesses cannot be achieved, namely the stopper is approximately two thicknesses. And when the absolute value of the difference of the thicknesses of the first bending section and the second bending section is greater than 1mm, the difference of the thicknesses of the first bending section and the second bending section is too large, the requirement on the assembly space of the exhaust valve is too large, and the reasonable arrangement between the limiting device and the exhaust valve is difficult to realize. Therefore, when the thicknesses of the first bending section and the second bending section meet the relational expression, the whole stopper can be divided into three parts according to different thicknesses on the basis of ensuring normal assembly of the stopper, so that the vibration response of the stopper is effectively reduced, the noise of the stopper under the target frequency is reduced, and meanwhile, the noise deterioration of other frequencies cannot be caused.

In one possible design, the thickness of the second bending section is greater than the thickness of the first bending section.

In this design, the thickness that is located the second section of bending of gas vent top is great, the thickness that the second section of bending is greater than the thickness of first section of bending promptly, on the one hand because can contact with the great second section of bending of thickness from the high-pressure gas of gas vent exhaust, thereby can effectively reduce the vibration response of stopper, on the other hand, make the stopper whole from the installation department, through first section of bending, the section of bending to the second is the trend that thickness increases, make the stopper whole be more regular shape, thereby can reduce the processing degree of difficulty of stopper.

In one possible design, further, the first bend section includes first and second ends that face away from each other. The first end is connected with the mounting portion. The second end is connected with the second bending section, and the thickness of the second end is larger than or equal to that of the first end.

In the design, the first bending section is provided with a first end and a second end which are deviated from each other, the first end is connected with the mounting part, the second end is connected with the second bending section, and the thickness of the first end is smaller than or equal to that of the second end. Specifically, the thickness of the first end is equal to that of the second end, that is, the first bending section is of an equal thickness structure as a whole. The thickness of the first end is smaller than that of the second end, namely the thickness of the first bending section is gradually increased from the first end to the second end.

In one possible design, the first bending section gradually increases from the first end to the second end.

In this design, first bending section includes the first spacing face towards discharge valve, and the whole thickness of first bending section is the trend that increases gradually from first end to second end, then first spacing personally submits the curved surface form.

In a possible design, further, the first bending section includes at least two sub-bending sections, the two sub-bending sections include a first sub-bending section and a second sub-bending section, the first sub-bending section is close to the installation portion and is arranged compared with the second sub-bending section, and the thickness of the first sub-bending section is smaller than that of the second sub-bending section.

In the design, the first bending section comprises at least two sub-bending sections, and each sub-bending section of the at least two sub-bending sections is of an equal-thickness structure. The thickness of the first sub-bending section close to the installation part is smaller than that of the second sub-bending section far away from the installation part. The overall thickness of the first bending section tends to be stepped. The first bending section faces the first limiting surface of the exhaust valve in a step shape.

In one possible design, the second bending section further comprises a connecting end, the connecting end is connected with the first bending section, and the thickness of the connecting end is smaller than or equal to that of the free end of the second bending section.

In this design, the second bending section comprises a connecting end and a free end which face away from each other, the connecting end being connected to the second end of the first bending section. The thickness of the connecting end is less than or equal to that of the free end of the second bending section. Specifically, the thickness of the connecting end is equal to that of the free end, namely, the second bending section is of an equal-thickness structure integrally at the moment. The thickness of link is less than the thickness of free end, and the thickness of second bending section is crescent from the link towards the free end this moment promptly. Furthermore, the second bending section comprises a second limiting surface facing the exhaust valve, the whole thickness of the second bending section gradually increases from the connecting end to the free end, and the second limiting surface is in a curved surface shape. Further, the whole thickness of the second bending section can be in a step trend, and the second limiting surface is in a step shape.

In a possible design, further, the stopper further includes a vent, and the vent is disposed on the bent portion.

In this design, the stopper still includes the blow vent, and the blow vent setting can pass the blow vent from exhaust port exhaust high-pressure gas in the portion of bending, and the blow vent is used for the atmospheric pressure of balanced stopper both sides promptly, avoids stopper both sides atmospheric pressure inequality and causes stopper self structure impaired.

It is worth to be noted that the width of the bent part provided with the vent is larger than the width of the bent parts of other parts.

In one possible embodiment, the ventilation openings are further arranged on the second bend.

In this design, the blow vent sets up on the second section of bending corresponding to the gas vent to when high-pressure gas discharged from the gas vent, the atmospheric pressure of the second section of bending both sides that are close to the gas vent is unbalanced, through set up the blow vent on the second section of bending, thereby can effectively balance the atmospheric pressure of stopper both sides, avoids stopper both sides atmospheric pressure inequality and causes stopper self structure impaired.

In one possible design, further, the mounting portion includes a fitting section and a step section, and the fitting section is connected to the exhaust valve. The platform stage is connected with the assembling section and the bending part, and the thickness of the platform stage is larger than that of the assembling section.

In this design, the installation department is including being used for the assembling section that links to each other with discharge valve, and the assembling section is the uniform thickness structure to make the wall of assembling section orientation discharge valve be the plane, so that stopper and discharge valve reliably are connected. The platform stage is connected with the assembling section and the first bending section, and the thickness of the step section is larger than that of the assembling section and smaller than that of the first bending section. The stopper includes assembly section, platform stage, first section of bending and the second section of bending for the stopper is whole to be divided into four bibliographic categories according to the thickness difference, thereby effectively reduces the vibration response of stopper, reduces the noise of stopper under the target frequency, also can not lead to other frequency noise to worsen simultaneously.

In one possible embodiment, the mounting portion further comprises a mounting opening, which is provided on the mounting section. The exhaust assembly further comprises a mounting opening and a fastener, and the mounting opening is formed in the exhaust valve. A fastener extends through the mounting opening and the mounting opening to connect the retainer to the vent valve.

In this design, the installation department is still including establishing the fitting port on the assembly section, and the position department that corresponds to the fitting port on the discharge valve is equipped with the fitting port, and the fastener can pass fitting port and fitting port to realize the reliable connection of stopper and discharge valve. Specifically, the fastener is a screw, a rivet, or the like. When the fastening piece is a screw, threads are correspondingly arranged on the inner walls of the assembling opening and the mounting opening, so that the screw can be tightly connected with the limiting stopper and the exhaust valve through the threads.

In one possible design, further, the exhaust valve includes a seat body and an exhaust valve sheet, and the exhaust port is provided on the seat body. The exhaust valve plate is connected to the seat body and can cover the exhaust port.

In the design, the exhaust valve comprises a seat body and an exhaust valve plate, the exhaust port is arranged on the seat body, and the mounting part of the stopper is connected with the exhaust valve plate and the seat body. The bending part bends and inclines towards the direction far away from the exhaust valve plate. The exhaust valve plate is used for opening or closing the exhaust port. The exhaust valve plate can control the balance of air pressure in the cylinder, thereby ensuring the normal operation of the compressor. Under the effect of the high-pressure gas in the cylinder, the exhaust valve sheet can reciprocate between the limiter and the seat body, and the exhaust valve sheet which reciprocates can excite the limiter to vibrate, so that noise is generated.

According to a second aspect of the present invention, there is provided a compressor comprising an exhaust assembly as provided by any of the above designs.

The utility model provides a compressor, including the exhaust subassembly that any above-mentioned design provided, consequently have this exhaust subassembly's whole beneficial effect, no longer describe herein.

Further, the compressor also comprises a bearing, and the bearing is connected with the exhaust valve of the exhaust assembly.

Further, the compressor may be a rotary compressor, and the compressor further includes a housing, a motor portion, a compression mechanism portion, and the like. The shell is closed and connected by a shell, an upper cover and a lower cover, and the motor part and the compression mechanism part are arranged in a cavity defined by the shell, the upper cover and the lower cover. The motor part comprises a stator and a rotor, the stator is fixed on the shell, the rotor is accommodated in the stator, and an air gap is arranged between the rotor and the stator. The stator is embedded with a winding formed by winding enameled wires, the winding generates a magnetic field when external power supply current passes through the winding, and the rotor and the stator interact with each other to generate electromagnetic torque so that the rotor rotates in the stator. The compression mechanism comprises a cylinder, a piston, a crankshaft, an upper bearing, a lower bearing and a sliding vane. The piston eccentrically rotates in the cylinder cavity, the crankshaft drives the piston to rotate, the upper bearing and the lower bearing are used for supporting the crankshaft and sealing the cylinder cavity, and the back of the sliding sheet enables the front end of the sliding sheet to be connected with the outer circumference of the piston through a compression spring.

According to a third aspect of the present invention, there is provided a refrigeration apparatus comprising a compressor provided by any of the above designs.

The utility model provides a refrigeration plant, including the compressor that any above-mentioned design provided, consequently have all beneficial effects of this compressor, no longer describe herein.

Further, the refrigeration equipment also comprises a shell, the shell is constructed to form a containing cavity, the compressor is connected to the shell, and the compressor is arranged in the containing cavity.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, 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 part of a compressor according to an embodiment of the present invention;

fig. 2 shows a schematic view of a stopper of an exhaust assembly according to an embodiment of the invention;

fig. 3 shows a top view of a retainer for an exhaust assembly in accordance with an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:

100 of the exhaust assembly,

110 exhaust valve, 111 seat body, 112 exhaust valve plate, 113 exhaust port,

120 of the position-limiting device is arranged,

121 a mounting part for mounting the movable part of the movable part,

122a first bending section, 122a second bending section,

at the point of the air vent 130,

140 of the mounting opening of the container body,

150 of the number of fasteners,

200 compressor, 210 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 discharge assembly 100, a compressor 200 and a refrigeration apparatus provided according to some embodiments of the present invention are described below with reference to fig. 1 to 3.

Example one

According to a first aspect of the present invention, as shown in fig. 1, 2 and 3, there is provided a vent assembly 100 including a vent valve 110 and a stopper 120. The exhaust valve 110 is provided with an exhaust port 113. The stopper 120 includes a mounting portion 121 and a bending portion 122 connected to each other, the mounting portion 121 is connected to the exhaust valve 110, and the bending portion 122 is bent in a direction away from the exhaust valve 110 and corresponds to the exhaust port 113. The thickness of the mounting portion 121 is smaller than that of the bent portion 122.

The present invention provides an exhaust assembly 100 including an exhaust valve 110 and a stopper 120. It should be noted that, taking a rotary compressor as an example, the exhaust valve 110 may be disposed on the bearing 210 of the compressor 200, for 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 110 may be disposed on at least one of the upper bearing and the lower bearing of the compressor 200. That is, the exhaust valve 110 includes three arrangements, one is that the exhaust valve 110 may be disposed on the upper bearing and the lower bearing, one is that the exhaust valve 110 may be disposed on the upper bearing, and the other is that the exhaust valve 110 may be disposed on the lower bearing. The discharge valve 110 has a discharge port 113, the discharge port 113 may communicate with a cylinder chamber of the compressor 200, and the discharge port 113 is used for discharging a refrigerant (refrigerant). Stopper 120 includes installation department 121 and the portion of bending 122 that links to each other, and installation department 121 connects on discharge valve 110, and portion of bending 122 links to each other with installation department 121, and portion of bending 122 is towards the direction of keeping away from discharge valve 110 bending slope extension, and portion of bending 122 is corresponding to gas vent 113, and portion of bending 122 is located the top of gas vent 113. The high-pressure gas is discharged from the gas discharge port 113 and contacts the bent portion 122 of the stopper 120. The utility model discloses a make the thickness of the portion of bending 122 be greater than the thickness of installation department 121, thereby make stopper 120 wholly be the unequal thickness structure, on the one hand when stopper 120 is excited and vibrate, unequal thickness stopper 120 can reduce stopper 120's vibration response, thereby reduce the noise of stopper 120 under the target frequency, meanwhile also can not lead to other frequency noises to worsen, on the other hand only can realize the effect of noise reduction through the thickness that changes stopper 120, simple structure process, therefore, the carrier wave prepaid electric energy meter is low in cost, and is suitable for the volume production.

Specifically, as shown in fig. 2 and 3, since the thickness of the bending portion 122 is greater than the thickness of the mounting portion 121, when the entire width of the stopper 120 is equal, the volume of the bending portion 122 is greater than the volume of the mounting portion 121, and the mass of the bending portion 122 is greater than the mass of the mounting portion 121, so that the rigidity of the bending portion 122 can be improved, and the impact vibration response of the bending portion 122 with greater rigidity can be reduced, so as to reduce the noise of the stopper 120. It should be noted that the target frequency of the stopper 120 is determined based on the shape and size of the stopper 120, and the stopper 120 has the corresponding target frequency.

Further, as shown in fig. 2 and 3, the bending portion 122 includes at least one bending section, the at least one bending section includes a first bending section 122a and a second bending section 122b, the first bending section 122a is located between the mounting portion 121 and the second bending section 122b, and a thickness of the first bending section 122a is not equal to a thickness of the second bending section 122 b.

In this embodiment, the bending portion 122 includes at least one bending segment, and when the number of the bending segments is one, the thickness of one bending segment is greater than that of the mounting portion 121. When the number of the bending sections is two, the two bending sections include a first bending section 122a and a second bending section 122b, the first bending section 122a is connected with the mounting portion 121 and the second bending section 122b respectively, wherein the thickness of the first bending section 122a and the thickness of the second bending section 122b are both greater than the thickness of the mounting portion 121, and the thickness of the first bending section 122a is not equal to the thickness of the second bending section 122 b. The method specifically comprises the following two steps: the thickness of the first bending section 122a is greater than that of the second bending section 122b, or the thickness of the second bending section 122b is greater than that of the first bending section 122 a. By making the thickness of the first bending section 122a unequal to the thickness of the second bending section 122b, the whole stopper 120 is divided into three parts according to the different thicknesses, namely, the mounting part 121, the first bending section 122a and the second bending section 122b, and by setting the different thicknesses of the multiple parts, the vibration response of the stopper 120 can be effectively reduced, the noise of the stopper 120 at the target frequency is reduced, and meanwhile, the noise deterioration of other frequencies is not caused.

Further, an absolute value of a difference between thicknesses of the first and second bent sections 122a and 122b is equal to or greater than 0.2mm and equal to or less than 1 mm.

In this embodiment, when the thickness of the first bending section 122a is greater than that of the second bending section 122b, the thickness difference between the first bending section 122a and the second bending section 122b satisfies the above relation. When the thickness of the second bending section 122b is greater than that of the first bending section 122a, the thickness difference between the second bending section 122b and the first bending section 122a satisfies the above relation. When the absolute value of the thickness difference between the first bending section 122a and the second bending section 122b is smaller than 0.2mm, the thickness difference between the first bending section 122a and the second bending section 122b is too small to reduce the vibration of the stopper 120 due to the unequal thicknesses, that is, the stopper 120 has two thicknesses as a whole. When the absolute value of the thickness difference between the first bending section 122a and the second bending section 122b is greater than 1mm, the thickness difference between the first bending section 122a and the second bending section 122b is too large, and at this time, the requirement for the assembly space on the exhaust valve 110 is too large, so that the reasonable arrangement between the stopper 120 and the exhaust valve 110 is difficult to achieve. Therefore, when the thicknesses of the first bending section 122a and the second bending section 122b satisfy the above-mentioned relational expression, the stopper 120 can be divided into three parts according to the thickness on the basis of ensuring the normal assembly of the stopper 120, so that the vibration response of the stopper 120 is effectively reduced, the noise of the stopper 120 at the target frequency is reduced, and meanwhile, the noise deterioration of other frequencies is not caused.

Further, the thickness of the second bending section 122b is greater than the thickness of the first bending section 122 a.

In this embodiment, the thickness of the second bending section 122b located above the exhaust port 113 is great, that is, the thickness of the second bending section 122b is greater than the thickness of the first bending section 122a, on the one hand, because the high-pressure gas exhausted from the exhaust port 113 can contact with the second bending section 122b with great thickness, thereby the vibration response of the stopper 120 can be effectively reduced, on the other hand, the stopper 120 is integrally from the installation part 121, through the first bending section 122a, the second bending section 122b is the trend of increasing thickness, the stopper 120 is integrally in a more regular shape, thereby the processing difficulty of the stopper 120 can be reduced.

Further, the first bent section 122a includes a first end and a second end that face away from each other. The first end is connected to the mounting portion 121. The second end is connected to the second bent section 122b, and the thickness of the second end is greater than or equal to that of the first end.

In this embodiment, the first bending section 122a has a first end and a second end, which are opposite to each other, the first end is connected to the mounting portion 121, the second end is connected to the second bending section 122b, and the thickness of the first end is smaller than or equal to that of the second end. Specifically, the thickness of the first end is equal to that of the second end, i.e., the first bending section 122a has an equal thickness structure as a whole. The thickness of the first end is smaller than that of the second end, that is, the thickness of the first bending section 122a is gradually increased from the first end to the second end.

Further, the first bending section 122a includes a first limiting surface facing the exhaust valve 110, and the thickness of the first bending section 122a gradually increases from the first end to the second end, so that the first limiting surface is curved.

Further, the first bending section 122a includes at least two sub-bending sections, and each of the at least two sub-bending sections is of an equal-thickness structure. The thickness of the first sub-bending section close to the mounting portion 121 is smaller than that of the second sub-bending section far from the mounting portion 121. The overall thickness of the first bent section 122a is stepped. The first bending section 122a is stepped toward the first position-limiting surface of the exhaust valve.

Further, the second bending section 122b includes a connection end, the connection end is connected to the first bending section 122a, and the thickness of the connection end is less than or equal to the thickness of the free end of the second bending section 122 b.

In this embodiment, the second bending section 122b includes a connecting end and a free end that face away from each other, and the connecting end is connected to the second end of the first bending section 122 a. The thickness of the connection end is less than or equal to the thickness of the free end of the second bending section 122 b. Specifically, the thickness of the connecting end is equal to that of the free end, i.e., the second bending section 122b is of an equal thickness structure as a whole. The thickness of the connecting end is smaller than that of the free end, that is, the thickness of the second bending section 122b gradually increases from the connecting end to the free end. Further, the second bending section 122b includes a second limiting surface facing the exhaust valve 110, and the overall thickness of the second bending section 122b gradually increases from the connecting end to the free end, so that the second limiting surface is curved. Further, the overall thickness of the second bending section 122b may also be in a step trend, and the second limiting surface is in a step shape.

Further, as shown in fig. 2 and 3, the stopper 120 further includes a vent 130, and the vent 130 is disposed on the bent portion 122.

In this embodiment, the stopper 120 further includes a vent 130, the vent 130 is disposed on the bent portion 122, and the high-pressure gas exhausted from the exhaust port 113 can pass through the vent 130, that is, the vent 130 is used to balance the gas pressures on the two sides of the stopper 120, so as to prevent the structure of the stopper 120 from being damaged due to the unequal gas pressures on the two sides of the stopper 120.

It should be noted that, as shown in fig. 3, the width of the portion of the bent portion 122 where the vent 130 is disposed on the bent portion 122 is greater than the width of the other portion of the bent portion 122.

Further, the vent 130 is disposed on the second bent section 122 b.

In this embodiment, the vent 130 is disposed on the second bending section 122b corresponding to the exhaust port 113, so that when the high-pressure gas is exhausted from the exhaust port 113, the air pressures at two sides of the second bending section 122b close to the exhaust port 113 are unbalanced, and by disposing the vent 130 on the second bending section 122b, the air pressures at two sides of the stopper 120 can be effectively balanced, thereby preventing the structural damage of the stopper 120 itself due to the unequal air pressures at two sides of the stopper 120.

Further, the mounting portion 121 includes a fitting section connected to the discharge valve 110 and a stepped section. The stage is connected to the assembly section and the bent portion 122, and the thickness of the stage is greater than that of the assembly section.

In this embodiment, the mounting portion 121 includes a mounting section for coupling with the discharge valve 110, and the mounting section has an equal thickness structure such that a wall surface of the mounting section facing the discharge valve 110 is a flat surface, so that the stopper 120 is securely coupled with the discharge valve 110. The stage is connected with the assembly section and the first bending section 122a, and the thickness of the step section is larger than that of the assembly section and smaller than that of the first bending section 122 a. The stopper 120 comprises an assembling section, a stage, a first bending section 122a and a second bending section 122b, so that the whole stopper 120 is divided into four parts according to different thicknesses, the vibration response of the stopper 120 is effectively reduced, the noise of the stopper 120 under the target frequency is reduced, and meanwhile, the noise deterioration of other frequencies cannot be caused.

Further, as shown in fig. 2 and 3, the mounting portion 121 further includes a mounting opening 140, and the mounting opening 140 is provided on the mounting section. The exhaust assembly 100 also includes a mounting port disposed on the exhaust valve 110 and a fastener 150. The fastener 150 passes through the mounting opening 140 and the mounting opening to connect the stopper 120 and the discharge valve 110.

In this embodiment, the mounting portion 121 further includes a mounting opening 140 formed at the mounting section, and a mounting opening is formed at a position of the discharge valve 110 corresponding to the mounting opening 140, and the fastening member 150 may pass through the mounting opening 140 and the mounting opening, thereby achieving a reliable connection between the stopper 120 and the discharge valve 110. Specifically, the fastener 150 is a screw, a rivet, or the like. When the fastening member 150 is a screw, threads are formed on the inner walls of the fitting opening 140 and the mounting opening, respectively, so that the screw can be fastened to the stopper 120 and the discharge valve 110 by the threads.

Further, as shown in fig. 1, the discharge valve 110 includes a seat body 111 and a discharge valve sheet 112, and a discharge port 113 is provided on the seat body 111. The discharge valve sheet 112 is coupled to the seat body 111 and can cover the discharge port 113.

In this embodiment, the discharge valve 110 includes a seat body 111 and a discharge valve sheet 112, the discharge port 113 is provided on the seat body 111, and the mounting portion 121 of the stopper 120 is connected to the discharge valve sheet 112 and the seat body 111. The bending portion 122 bends and inclines away from the exhaust valve plate 112. The discharge valve sheet 112 is used to open or close the discharge port 113. The discharge valve plate 112 can control the balance of the air pressure in the cylinder, thereby ensuring the normal operation of the compressor 200. Under the action of high-pressure gas in the cylinder, the exhaust valve plate 112 reciprocates between the stopper 120 and the seat body 111, and the reciprocating exhaust valve plate 112 excites the stopper 120 to vibrate, thereby generating noise.

Further, an annular protrusion may be provided on the upper surface of the seat body 111 around the discharge port 113, and when the discharge valve sheet 112 closes the discharge port 113, the discharge valve sheet 112 is attached to the annular protrusion. Because the annular protrusion protrudes upwards from the top of the exhaust port 113, when the exhaust valve plate 112 closes the exhaust port 113, the exhaust valve plate 112 can be better stopped at the annular protrusion, so that the sealing performance of the exhaust valve plate 112 closing the exhaust port 113 can be improved, and the phenomenon that the exhaust valve plate 112 closing the exhaust port 113 is not tight is prevented.

It should be noted that the surface of the bent portion 122 facing the exhaust valve 110 is a limiting surface, the limiting surface includes a first limiting surface and a second limiting surface, the first limiting surface is located between the mounting portion 121 and the second limiting surface, an upward oblique angle of the first limiting surface relative to the outer end surface of the exhaust port 113 is a first angle, an upward oblique angle of the second limiting surface relative to the outer end surface of the exhaust port 113 is a second angle, and the second angle is smaller than the first angle.

Specifically, when the compressor 200 operating at a high frequency discharges air, the discharge valve plate 112 is pushed against the stopper surface of the stopper 120 by the discharged air, because the upper oblique angle of the second limiting surface is smaller than that of the first limiting surface, the exhaust valve plate 112 will generate downward-bending elastic deformation, and after the exhaust is finished, the downward-bending deformation rebounds, the counterforce of the limiting surface to the exhaust valve plate 112 will push the exhaust valve plate 112 to move to the exhaust port 113, increasing the closing speed of the exhaust valve plate 112, therefore, under the condition of selecting the exhaust valve plate 112 with small rigidity, the rebound resetting speed of the exhaust valve plate 112 is improved, the problem that the exhaust valve plate 112 is closed in a delayed manner is avoided, the condition that exhaust backflow is caused by delayed closing of the exhaust valve plate 112 is prevented, thereby improving the air delivery capacity and the energy efficiency ratio of the compressor 200 and simultaneously avoiding the problem that the exhaust valve plate 112 is damaged due to exhaust backflow.

Further, the second limiting surface is inclined toward a direction away from the exhaust port 113, or the second limiting surface is parallel to the outer end surface of the exhaust port 113.

In this embodiment, if the second position-limiting surface is inclined toward the direction close to the gas outlet 113, the distance between the free end of the position-limiting device 120 and the gas outlet 113 is reduced, so that the maximum opening of the door of the gas outlet valve 110 is reduced and smaller than the gas outlet effect, thereby reducing the gas delivery amount and the energy efficiency ratio of the compressor 200. Therefore, in this embodiment, the second limiting surface is inclined towards the direction away from the outer end surface of the exhaust port 113 or parallel to the outer end surface of the exhaust port 113, so that the bottom end of the second limiting surface away from the first limiting surface is not lower than the end connected with the first limiting surface, thereby ensuring that the exhaust valve 110 has a sufficient opening.

Further, the first limiting surface is a plane or a curved surface, and/or the second limiting surface is a plane or a curved surface.

Furthermore, a fillet is arranged at the joint of the first limiting surface and the second limiting surface.

In this embodiment, the stress ratio at the connection between the first and second limiting surfaces is concentrated, and the rounded corner can reduce the stress at the position, thereby preventing the stopper 120 from being deformed or damaged due to the excessive stress at the position, and thus the design can improve the reliability and the service life of the stopper 120.

Example two

According to a second aspect of the present invention, as shown in fig. 2, there is provided a compressor 200 comprising the exhaust assembly 100 provided in any one of the above embodiments.

The utility model provides a compressor 200, including the exhaust assembly 100 that any above-mentioned embodiment provided, consequently have all beneficial effects of this exhaust assembly 100, no longer describe herein.

Further, the compressor 200 further includes a bearing 210, and the bearing 210 is connected to the discharge valve 110 of the discharge assembly 100.

Further, the bearing 210 includes a main body portion and a protruding portion, the protruding portion is connected with the main body portion, and the protruding portion and the main body portion are of a split structure. The discharge valve 110 is provided on the body portion.

In this embodiment, the bearing 210 includes a main body portion and a protruding portion, wherein the protruding portion is connected with the main body portion to form the bearing 210, wherein the protruding portion and the main body portion are separate structures, that is, before the protruding portion is connected with the main body portion, the protruding portion and the main body portion are mutually independent processing components, in an actual processing and production process, the protruding portion and the main body portion can be respectively processed, and after the protruding portion and the main body portion are processed and molded, the protruding portion and the main body portion are assembled and connected to form the bearing 210. The utility model discloses in set up the bulge into components of a whole that can function independently structure with the main part, reduce the processing degree of difficulty, effectively promote machining efficiency and reduce the processing cost, the mass production of the bearing 210 of being convenient for is made.

Further, the bearing 210 further includes a mounting hole opened on the main body portion; the bulge is a round pipe, and the round pipe is inserted in the mounting hole to be connected with the main body part.

In this embodiment, the bearing 210 further includes a mounting hole opened on the main body portion. Preferably, the mounting hole is opened in a central region of the main body. The protruding portion is a circular tube, the circular tube is inserted into the mounting hole and connected with the main body portion, the circular tube and the mounting hole together form a channel for mounting a crankshaft of the compressor 200, and the crankshaft can rotate in the channel.

Further, the bearing 210 further includes a reinforcing portion disposed on the main body portion around the mounting hole, the reinforcing portion fitting to the circular tube.

In this embodiment, bearing 210 still includes around the reinforcing part of mounting hole setting on the main part, and when the pipe was inserted and is established in the mounting hole, reinforcing part and pipe looks adaptation, and the inside wall of reinforcing part laminates with the outer wall of pipe mutually, and then strengthens the connection performance between pipe, reinforcing part and the main part to make bearing 210 be difficult for taking place to warp when receiving the exogenic action, extension bearing 210's life and safety in service performance.

Further, the round tube is integrally formed; the main body portion and the reinforcing portion are integrally formed.

In this embodiment, make the pipe through integrated into one piece's preparation technology, strengthen the self structural strength of pipe, reduce the processing degree of difficulty of pipe on the one hand, batch production improves the machining efficiency of pipe, reduces the processing cost of pipe, and on the other hand reduces the quantity of spare part, reduces the installation procedure, makes the installation of pipe more convenient and reliable. The main body part and the reinforcing part are manufactured through an integrally-formed manufacturing process, so that on one hand, the connecting strength between the main body part and the reinforcing part can be improved. In addition, the main body part and the reinforcing part are integrally manufactured, so that the mass production of products can be realized, the processing efficiency is improved, the processing cost is reduced, the number of parts is reduced, the mounting procedures are reduced, and the main body part and the reinforcing part are more convenient and reliable to mount.

Furthermore, at least part of the circular tube is in welding fit with the wall of the mounting hole; or at least part of the circular tube is in interference fit with the mounting hole; or at least part of the circular tube is in bonding fit with the wall of the mounting hole.

In this embodiment, at least part of the circular tube is welded and matched with the hole wall of the mounting hole, so that the circular tube is reliably connected with the main body part. Preferably, the diameter of the mounting hole is larger than the outer diameter of the circular tube, when the circular tube is inserted into the mounting hole, a gap is formed between the outer wall of the circular tube and the wall of the mounting hole, and the circular tube is connected with the main body by filling solder into the gap. Or at least part of the circular tube is in interference fit with the mounting hole. Or at least part of the circular tube is in bonding fit with the wall of the mounting hole.

Further, the compressor 200 may be a rotary compressor, and the compressor 200 further includes a housing, a motor part, a compression part, and the like. The shell is closed and connected by the shell, the upper cover and the lower cover, and the motor part and the compression part are arranged in a cavity defined by the shell, the upper cover and the lower cover. The motor part comprises a stator and a rotor, the stator is fixed on the shell, the rotor is accommodated in the stator, and an air gap is arranged between the rotor and the stator. The stator is embedded with a winding formed by winding enameled wires, the winding generates a magnetic field when external power supply current passes through the winding, and the rotor and the stator interact with each other to generate electromagnetic torque so that the rotor rotates in the stator. The compression part comprises a cylinder, a piston, a crankshaft, an upper bearing, a lower bearing and a slide sheet. The piston eccentrically rotates in the cylinder cavity, the crankshaft drives the piston to rotate, the upper bearing and the lower bearing are used for supporting the crankshaft and sealing the cylinder cavity, and the back of the sliding sheet enables the front end of the sliding sheet to be connected with the outer circumference of the piston through a compression spring.

Specifically, the discharge valve 110 may be provided on at least one of the upper bearing and the lower bearing, the discharge valve 110 having a discharge port 113, the discharge port 113 communicating with a cylinder chamber of the compressor 200, and the discharge valve sheet 112 provided on the seat body 111.

Further, the cylinder still includes the first cylinder and the second cylinder that vertical interval set up, and compressor 200 is two cylinder compressors promptly. Be equipped with the cylinder baffle between first cylinder and the second cylinder, the utility model discloses a compressor 200 reliability and exhaust efficiency are higher.

EXAMPLE III

According to a third aspect of the present invention, there is provided a refrigeration apparatus including the compressor 200 provided in any one of the above embodiments.

The utility model provides a refrigeration plant, including the compressor 200 that any above-mentioned embodiment provided, consequently have all beneficial effects of this compressor 200, no longer describe herein.

Further, the refrigerating apparatus further includes a housing configured to form a receiving chamber, the compressor 200 is coupled to the housing, and the compressor 200 is disposed in the receiving chamber.

In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. 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 description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 (13)

1. An exhaust assembly, comprising:

the exhaust valve is provided with an exhaust port;

the limiting stopper comprises a mounting part and a bending part which are connected, the mounting part is connected to the exhaust valve, and the bending part is bent towards the direction far away from the exhaust valve and corresponds to the exhaust port;

wherein, the thickness of installation department is less than the thickness of portion of bending.

2. The exhaust assembly of claim 1,

the bending portion comprises at least one bending section, the at least one bending section comprises a first bending section and a second bending section, the first bending section is located between the installation portion and the second bending section, and the thickness of the first bending section is not equal to that of the second bending section.

3. The exhaust assembly of claim 2,

the absolute value of the thickness difference between the first bending section and the second bending section is greater than or equal to 0.2mm and less than or equal to 1 mm;

the thickness of the second bending section is larger than that of the first bending section.

4. The exhaust assembly of claim 2, wherein the first bend section comprises:

a first end connected to the mounting portion;

and the second end is connected with the second bending section, and the thickness of the second end is more than or equal to that of the first end.

5. The exhaust assembly of claim 4,

the first bending section is gradually thickened from the first end to the second end; or

The first bending section comprises at least two sub bending sections, the at least two sub bending sections comprise a first sub bending section and a second sub bending section, the first sub bending section is located between the installation part and the second sub bending section, and the thickness of the first sub bending section is smaller than that of the second sub bending section.

6. The exhaust assembly of claim 2, wherein the second bend section comprises:

and the connecting end is connected with the first bending section, and the thickness of the connecting end is less than or equal to that of the free end of the second bending section.

7. The exhaust assembly according to any one of claims 2 to 6 wherein the limiter further comprises:

and the air vent is arranged on the bending part.

8. The exhaust assembly of claim 7,

the vent is disposed on the second bend section.

9. The exhaust assembly according to any one of claims 1 to 6 wherein said mounting portion comprises:

the assembling section is connected with the exhaust valve;

and the platform stage is connected with the assembling section and the bending part, and the thickness of the platform stage is greater than that of the assembling section.

10. The exhaust assembly of claim 9,

the mounting portion further comprises a mounting opening (140) disposed on the mounting section;

the exhaust assembly further includes:

the mounting port is arranged on the exhaust valve;

a fastener passing through the mounting opening (140) and the mounting opening to connect the retainer to the vent valve.

11. The exhaust assembly according to any one of claims 1 to 6, wherein the exhaust valve comprises:

the seat body is provided with the exhaust port;

and the exhaust valve plate is connected to the seat body and can cover the exhaust port.

12. A compressor, comprising:

a bearing; and

an exhaust assembly according to any one of claims 1 to 11, an exhaust valve of the exhaust assembly being connected to the bearing.

13. A refrigeration apparatus, comprising:

a housing having a receiving cavity; and

the compressor of claim 12, said compressor being attached to said housing and located within said receiving cavity.

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