CN117662812A - Valve seat assembly, bearing assembly and compressor - Google Patents

Valve seat assembly, bearing assembly and compressor Download PDF

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Publication number
CN117662812A
CN117662812A CN202211046837.0A CN202211046837A CN117662812A CN 117662812 A CN117662812 A CN 117662812A CN 202211046837 A CN202211046837 A CN 202211046837A CN 117662812 A CN117662812 A CN 117662812A
Authority
CN
China
Prior art keywords
valve plate
exhaust
exhaust port
valve seat
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211046837.0A
Other languages
Chinese (zh)
Inventor
秦鹏
沈靖皓
陈晓育
邓志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Meizhi Compressor Co Ltd
Original Assignee
Guangdong Meizhi Compressor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Meizhi Compressor Co Ltd filed Critical Guangdong Meizhi Compressor Co Ltd
Priority to CN202211046837.0A priority Critical patent/CN117662812A/en
Publication of CN117662812A publication Critical patent/CN117662812A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
    • F16K15/162—Check valves with flexible valve members with tongue-shaped laminae with limit stop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
    • F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/01—Damping of valve members
    • F16K47/011—Damping of valve members by means of a dashpot
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/50—Bearings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

The invention discloses a valve seat assembly, a bearing assembly and a compressor, wherein the valve seat assembly comprises: a valve seat on which an exhaust port is formed; one end of the exhaust valve plate covers the exhaust port to open or close the exhaust port, and the other end of the exhaust valve plate is connected with the valve seat; the limiter is arranged on one side of the exhaust valve plate, which is far away from the exhaust port, one end of the limiter is connected with the valve seat, and the other end of the limiter is bent towards the direction far away from the exhaust port; the limiting valve plate is positioned between the exhaust valve plate and the limiter, one end of the limiting valve plate is connected to the valve seat, the other end of the limiting valve plate inclines towards the direction away from the exhaust port and is spaced apart from the limiter, and the thickness of the limiting valve plate is larger than that of the exhaust valve plate. According to the valve seat assembly provided by the invention, the exhaust valve plate can be buffered, so that the excitation of the slapping limiter of the exhaust valve plate is reduced, and the slapping noise of the exhaust valve plate is reduced.

Description

Valve seat assembly, bearing assembly and compressor
Technical Field
The invention relates to the technical field of compressors, in particular to a valve seat assembly, a bearing assembly and a compressor.
Background
In the related art, an exhaust valve plate of a rotary compressor is continuously opened and closed in the working process, and impact radiation noise can be generated between the valve plate and a valve seat and between the valve plate and a limiter in the opening and closing processes. Meanwhile, the valve plate can also generate flutter radiation noise in the opening process.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the valve seat assembly, and the exhaust valve plate of the valve seat assembly has low clapping noise.
The invention also provides a bearing assembly, which comprises the valve seat assembly.
The invention also provides a compressor comprising the bearing assembly.
A valve seat assembly according to an embodiment of the present invention includes: the valve seat is provided with an exhaust port; one end of the exhaust valve plate covers the exhaust port to open or close the exhaust port, and the other end of the exhaust valve plate is connected with the valve seat; the limiter is arranged on one side of the exhaust valve plate, which is far away from the exhaust port, one end of the limiter is connected with the valve seat, and the other end of the limiter is bent towards the direction far away from the exhaust port; the limiting valve plate is positioned between the exhaust valve plate and the limiter, one end of the limiting valve plate is connected to the valve seat, the other end of the limiting valve plate is inclined towards the direction away from the exhaust port and is spaced from the limiter, and the thickness of the limiting valve plate is larger than that of the exhaust valve plate.
According to the valve seat assembly provided by the embodiment of the invention, the limit valve plate is arranged between the exhaust valve plate and the limiter, the end, adjacent to the exhaust port, of the limit valve plate is inclined towards the direction away from the exhaust port and is spaced from the limiter, and in the process that the exhaust valve plate opens the exhaust port, the buffer effect can be achieved on the exhaust valve plate, so that excitation of the exhaust valve plate for slapping the limiter is reduced, and slapping noise of the exhaust valve plate is reduced. In addition, the thickness of the limiting valve plate is larger than that of the exhaust valve plate, so that the rigidity of the limiting valve plate is larger than that of the exhaust valve plate, the exhaust valve plate is better buffered, and the clapping noise of the exhaust valve plate is further reduced.
According to some embodiments of the invention, the thickness of the limiting valve plate is K1, the thickness of the exhaust valve plate is K2, and the following conditions are satisfied: 1< K1/K2<20.
According to some embodiments of the invention, a distance between an intersection of a surface of the stopper facing the exhaust port and a central axis of the exhaust port and a surface of the exhaust valve plate away from the exhaust port is L1, a distance between an intersection of a surface of the stopper valve plate facing the exhaust port and a central axis of the exhaust port and a surface of the exhaust valve plate away from the exhaust port is L2, and it is satisfied that: L2/L1 is less than or equal to 1/3 and less than or equal to 2/3.
According to some embodiments of the invention, the limiting valve plates are multi-layered, and one end of any two adjacent layers of limiting valve plates adjacent to the exhaust port is spaced apart.
In some embodiments of the present invention, the distance between two adjacent limiting valve plates increases gradually in a direction toward the exhaust port.
In some embodiments of the present invention, the plurality of layers of the limit valve plates are ordered in a direction toward the exhaust port, a distance between an intersection point of a surface of each layer of the limit valve plates toward the exhaust port and a central axis of the exhaust port and a surface of the exhaust valve plate away from the exhaust port is D (n), and the distance is as follows: d (n) -D (n+1) =c1×n≡2, where C1 is constant and C1 > 0.
In some embodiments of the present invention, the thickness of the limiting valve plate decreases in sequence in a direction toward the exhaust port.
In some embodiments of the present invention, the plurality of layers of the stop valve plates are ordered in a direction toward the exhaust port, and each layer of the stop valve plates has a thickness Kn, and satisfies: kn=c2/n, where C2 is constant and C2 > 0.
A bearing assembly according to an embodiment of the present invention includes: a bearing; in the above valve seat assembly, at least a part of the bearing is formed as the valve seat.
According to the bearing assembly provided by the embodiment of the invention, the valve seat assembly is arranged, the limiting valve plate is arranged between the exhaust valve plate and the limiter, one end, close to the exhaust port, of the limiting valve plate is inclined towards the direction away from the exhaust port and is spaced from the limiter, and in the process that the exhaust valve plate opens the exhaust port, the buffering effect on the exhaust valve plate can be achieved, so that excitation of the exhaust valve plate for beating the limiter is reduced, and beating noise of the exhaust valve plate is reduced. In addition, the thickness of the limiting valve plate is larger than that of the exhaust valve plate, so that the rigidity of the limiting valve plate is larger than that of the exhaust valve plate, the exhaust valve plate is better buffered, and the clapping noise of the exhaust valve plate is further reduced.
The compressor according to the embodiment of the invention comprises the bearing assembly.
According to the compressor provided by the embodiment of the invention, the bearing assembly is arranged, the limiting valve plate is arranged between the exhaust valve plate and the limiter, one end, close to the exhaust port, of the limiting valve plate is inclined towards the direction away from the exhaust port and is spaced from the limiter, and in the process that the exhaust valve plate opens the exhaust port, the buffering effect on the exhaust valve plate can be achieved, so that excitation of the exhaust valve plate for beating the limiter is reduced, and beating noise of the exhaust valve plate is reduced. In addition, the thickness of the limiting valve plate is larger than that of the exhaust valve plate, so that the rigidity of the limiting valve plate is larger than that of the exhaust valve plate, the exhaust valve plate is better buffered, and the clapping noise of the exhaust valve plate is further reduced.
Additional aspects and advantages of 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 foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a cross-sectional view of a bearing assembly according to an embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a cross-sectional view of a bearing assembly according to another embodiment of the present invention;
fig. 4 is an enlarged view at B in fig. 3.
Reference numerals:
100. a bearing assembly;
10. a valve seat assembly;
1. a valve seat; 11. an exhaust port;
2. an exhaust valve plate; 3. a limiter; 4. a limit valve plate; 5. a fastener;
20. and (3) a bearing.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A valve seat assembly 10 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1, a valve seat assembly 10 according to an embodiment of the present invention includes a valve seat 1, an exhaust valve plate 2, a stopper 3, and a stopper valve plate 4. Wherein, as shown in fig. 1, when the above valve seat assembly 10 is applied to the bearing assembly 100, at least part of the bearing 20 is configured as the valve seat 1.
As shown in fig. 1 and 2, an exhaust port 11 is formed on the valve seat 1, the exhaust port 11 penetrating the valve seat 1 in the thickness direction of the valve seat 1, and the exhaust port 11 penetrating at least part of the bearing 20 in the axial direction of the bearing 20 when the valve seat assembly 10 is applied to the bearing assembly 100 of the compressor and when at least part of the bearing 20 is configured as the valve seat 1.
The valve block 2 is located one side of disk seat 1, and the one end of valve block 2 covers in gas vent 11 department in order to open or close gas vent 11, and the other end and the disk seat of valve block 2 are connected, and the one side of keeping away from gas vent 11 of valve block 2 is located to stopper 3, and the one side of keeping away from disk seat 1 of valve block 2 is located to stopper 3 promptly, and the one end of stopper 3 is connected in disk seat 1, and the other end of stopper 3 is buckled towards the direction of keeping away from gas vent 11. The limit valve plate 4 is located between the exhaust valve plate 2 and the limiter 3, one end of the limit valve plate 4 is connected to the valve seat 1, and the other end of the limit valve plate is inclined towards the direction away from the exhaust port 11 and is spaced apart from the limiter 3.
Specifically, as shown in fig. 1, one end of the stopper 3, one end of the exhaust valve plate 2 and the valve seat 1 are stacked and connected to the valve seat 1 by a fastener 5, wherein the exhaust valve plate 2 is located between the stopper 3 and the valve seat 1. One end of the limiting valve plate 4 is connected to the valve seat 1 through the fastening piece 5, and the limiting valve plate 4 is located between the exhaust valve plate 2 and the limiter 3.
Further, the end of the stopper 3 away from the fastener 5 is bent toward the direction away from the exhaust port 11, and the end of the exhaust valve sheet 2 away from the fastener 5 covers the exhaust port 11 to open or close the exhaust port 11. When the pressure of the exhaust port 11 on the side far away from the exhaust valve plate 2 is smaller than the elastic force of the exhaust valve plate 2, the exhaust valve plate 2 covers the exhaust port 11 to close the exhaust port 11, and when the pressure of the exhaust port 11 on the side far away from the exhaust valve plate 2 is larger than the elastic force of the exhaust valve plate 2, the gas drives the exhaust valve plate 2 to move towards the direction far away from the exhaust port 11, so that the exhaust valve plate 2 is separated from the exhaust port 11 to open the exhaust port 11.
When the exhaust valve plate 2 closes the exhaust port 11, the exhaust valve plate 2 is perpendicular to the axial direction of the exhaust port 11, the whole exhaust valve plate 2 is in a plane, and at the moment, one end of the limiter 3, which is far away from the fastening piece 5, is spaced from one end of the exhaust valve plate 2, which is far away from the fastening piece 5, so that the end of the exhaust valve plate 2, which is far away from the fastening piece 5, has a movement stroke in the direction far away from the exhaust port 11; when the exhaust valve block 2 is driven by the other side pressure of the exhaust port 11 away from the exhaust valve block 2, one end of the exhaust valve block 2 away from the fastening piece 5 is inclined towards the direction away from the exhaust port 11 until the one end of the exhaust valve block 2 away from the fastening piece 5 is attached to one end of the limiter 3 away from the fastening piece 5, and the limiter 3 is used for limiting the movement stroke of the exhaust valve block 2 so as to prevent the exhaust valve block 2 from being damaged due to larger bending; when the pressure of the side of the exhaust port 11 away from the exhaust valve plate 2 is lower than the elastic force of the exhaust valve plate 2 again, the exhaust valve plate 2 is restored to a plane under the action of the self elastic force and the exhaust port 11 is closed, and the steps are repeated in a reciprocating cycle.
When the valve seat assembly 10 is applied to the bearing assembly 100 of the compressor, the compression mechanism of the compressor always compresses the refrigerant in the working process, and the gas pressure of one side, far away from the exhaust valve plate 2, of the exhaust port 11 can be continuously switched between low pressure and high pressure, so that the exhaust valve plate 2 can uninterruptedly open or close the exhaust port 11, the exhaust valve plate 2 can flap the limiter 3 in the process of opening the exhaust port 11, the valve seat 1 can be flap in the process of closing the exhaust port 11, noise is generated, and the exhaust valve plate 2 can also have flutter radiation noise in the process of opening.
In this application, through setting up spacing valve block 4 between stopper 3 and discharge valve block 2 for the one end of spacing valve block 4 is connected in disk seat 1 through above-mentioned fastener 5, and the one end of keeping away from fastener 5 of spacing valve block 4 is towards keeping away from the direction slope of gas vent 11 and with the stopper 3 spaced apart. It can be understood that when the exhaust valve plate 2 closes the exhaust port 11, one end of the limiting valve plate 4, which is far away from the fastener 5, is spaced apart from the exhaust valve plate 2 and is spaced apart from the limiter 3, when the exhaust valve plate 2 opens the exhaust port 11, one end of the exhaust valve plate 2, which is far away from the fastener 5, is bent towards the direction far away from the exhaust port 11, is attached to the limiting valve plate 4 after the exhaust valve plate 2 is bent by a certain angle, and is bent towards the direction far away from the exhaust port 11 together with the limiting valve plate 4 under the action of gas pressure until the limiting valve plate 4 is attached to the limiter 3, and the stroke of the limiting valve plate 4 and the exhaust valve plate 2 is limited by the limiter 3.
Wherein, in the process that the exhaust valve plate 2 opens the exhaust port 11, the movement stroke of the exhaust valve plate 2 can be divided into two strokes, the first stroke is the stroke of the exhaust valve plate 2 and the limit valve plate 4 which are integrally moved in a fitting way before the exhaust valve plate 2 and the limit valve plate 4 are not contacted. Under the condition that all parameters of the exhaust valve block 2 are the same as the existing parameters, the movement speed and time of the exhaust valve block 2 are the same as those of the prior art in the first stroke, the resistance of the exhaust valve block 2 is increased due to the effect of the limiting valve block 4 in the second stroke, and buffer force is provided for the exhaust valve block 2, so that compared with the prior art, the speed of the exhaust valve block 2 is reduced in the second stroke, the excitation of the exhaust valve block 2 for slapping the limiter 3 is reduced, and the noise of the slapping limiter 3 is reduced.
Further, as shown in fig. 2, the thickness of the limiting valve plate 4 is greater than that of the exhaust valve plate 2. Therefore, the rigidity of the limit valve plate 4 is larger than that of the exhaust valve plate 2, the exhaust valve plate 2 can be better buffered in the process of opening the exhaust port 11 by the exhaust valve plate 2, the excitation of the exhaust valve plate 2 for slapping the limiter 3 is reduced, and the noise of slapping the limiter 3 is reduced.
In addition, can make the thickness of the valve block of this application be less than the thickness of prior art valve block, at the in-process of closing gas vent 11, the motion stroke of discharge valve block 2 can divide into two strokes, and first stroke is discharge valve block 2 and spacing valve block 4 laminating, and the second stroke is discharge valve block 2 and spacing valve block 4 break away from, because at the second stroke, discharge valve block 2 breaks away from with spacing valve block 4 for discharge valve block 2 strikes the speed of disk seat 1 and reduces, thereby reduces the valve block and beats the noise.
Alternatively, the shapes of the limit valve plate 4 and the discharge valve plate 2 may be the same.
According to the valve seat assembly 10 provided by the embodiment of the invention, the limit valve plate 4 is arranged between the exhaust valve plate 2 and the limiter 3, and one end, adjacent to the exhaust port 11, of the limit valve plate 4 is inclined towards the direction away from the exhaust port 11 and is spaced from the limiter 3, so that the exhaust valve plate 2 can be buffered in the process that the exhaust valve plate 2 opens the exhaust port 11, the excitation of the exhaust valve plate 2 for beating the limiter 3 is reduced, and the beating noise of the exhaust valve plate 2 is reduced. In addition, because the thickness of the limiting valve plate 4 is greater than the thickness of the exhaust valve plate 2, the rigidity of the limiting valve plate 4 is greater than the rigidity of the exhaust valve plate 2, and the buffering effect on the exhaust valve plate 2 is better achieved, so that the clapping noise of the exhaust valve plate 2 is further reduced.
In some embodiments of the present invention, the thickness of the limiting valve plate 4 is K1, the thickness of the exhaust valve plate 2 is K2, and the following are satisfied: 1< K1/K2<20. When the thickness of the limit valve plate 4 and the thickness of the exhaust valve plate 2 meet the above relation, the limit valve plate 4 can better buffer the exhaust valve plate 2, so that the clapping noise of the exhaust valve plate 2 is further reduced.
Alternatively, the ratio K1/K2 of the thickness K1 of the stop valve sheet 4 to the thickness K2 of the exhaust valve sheet 2 may be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or the like.
In some embodiments of the present invention, a distance between an intersection point of a surface of the stopper 3 facing the exhaust port 11 and a central axis of the exhaust port 11 and a surface of the exhaust valve sheet 2 away from the exhaust port 11 is L1, a distance between an intersection point of a surface of the stopper valve sheet 4 facing the exhaust port 11 and a central axis of the exhaust port 11 and a surface of the exhaust valve sheet 2 away from the exhaust port 11 is L2, and it is satisfied that: L2/L1 is less than or equal to 1/3 and less than or equal to 2/3. When the bending angle of the limiting valve plate 4 and the bending angle of the limiter 3 meet the above relation, the limiting valve plate 4 can better buffer the exhaust valve plate 2, so that the clapping noise of the exhaust valve plate 2 is further reduced.
Alternatively, the ratio L2/L1 of the distance L2 between the intersection of the surface of the limit valve plate 4 facing the exhaust port 11 and the central axis of the exhaust port 11 and the surface of the exhaust valve plate 2 facing away from the exhaust port 11 and the distance L1 between the intersection of the surface of the retainer 3 facing the exhaust port 11 and the central axis of the exhaust port 11 and the surface of the exhaust valve plate 2 facing away from the exhaust port 11 may be 1/3, 1/2, 4/9, 5/12, 7/12, 2/3, or the like.
In some embodiments of the present invention, as shown in fig. 3 and 4, the check valve plates 4 are multi-layered, one end of any adjacent two layers of check valve plates 4 adjacent to the exhaust port 11 is spaced apart, and one end of each layer of check valve plates 4 adjacent to the exhaust port 11 is inclined toward a direction away from the exhaust port 11 and is spaced apart from the retainer 3, and each check valve plate 4 is spaced apart from the exhaust valve plate 2 when the exhaust valve plate 2 closes the exhaust port 11. Therefore, the exhaust valve plate 2 can be subjected to step buffering for a plurality of times, so that excitation of the exhaust valve plate 2 for slapping the limiter 3 is reduced, and noise of slapping the limiter 3 is reduced.
In the process that the exhaust valve block 2 opens the exhaust port 11, the exhaust valve block 2 moves for a certain stroke in a direction away from the exhaust port 11, then is attached to the first limit valve block 4 close to the exhaust port 11, is attached to the next limit valve block 4 at intervals until being attached to one limit valve block 4 away from the exhaust port 11, and then moves together with all limit valve blocks 4 in a direction away from the exhaust port 11 until being attached to the limiter 3; in the process that the exhaust valve plate 2 closes the exhaust port 11, the exhaust valve plate 2 and all the limiting valve plates 4 move together for a certain stroke and then are separated from the valve plates far away from the exhaust port 11, and each interval is separated from the next limiting valve plate 4 until the exhaust valve plate is separated from the valve plate close to the exhaust port 11 until the exhaust valve plate is attached to the valve seat 1 to close the exhaust port 11.
Further, as shown in fig. 3 and 4, the distance between the adjacent two check valve plates 4 gradually increases in the direction toward the exhaust port 11, specifically, the distance between the ends of the adjacent two check valve plates 4 away from the fastener 5 gradually increases. In the process that the exhaust port 11 is opened by the exhaust valve block 2, due to the limiting action of the limiting valve block 4 close to the exhaust port 11 side, the exhaust valve block 2 is buffered, the speed of the exhaust valve block 2 is reduced, the distance between one ends, far away from the fastener 5, of the two adjacent limiting valve blocks 4 is gradually increased in the direction towards the exhaust port 11, the fitting of the exhaust valve block 2 and the limiting valve block 4 is facilitated, and therefore the limiting action on the exhaust valve block 2 is better achieved.
Still further, the plurality of layers of the limiting valve plates 4 are ordered in the direction toward the exhaust port 11, and the distance between the intersection point of the surface of each layer of the limiting valve plate 4 toward the exhaust port 11 and the central axis of the exhaust port 11 and the surface of the exhaust valve plate 2 away from the exhaust port 11 is D (n), and satisfies: d (n) -D (n+1) =c1×n≡2, where C1 is constant and C1 > 0. Therefore, in the direction towards the exhaust port 11, the distance between one ends, far away from the fastener 5, of the two adjacent limiting valve plates 4 is gradually increased, the exhaust valve plates 2 and the limiting valve plates 4 are attached conveniently, and therefore the exhaust valve plates 2 are better limited.
For example, in the example shown in fig. 4, the stop valve sheet 4 has three layers, in the direction toward the exhaust port 11, a first layer, a second layer, and a third layer, respectively, the stop valve sheet 4 furthest from the exhaust port 11 is the first layer stop valve sheet 4, the stop valve sheet 4 closest to the exhaust port 11 is the third layer stop valve sheet 4, the intermediate layer stop valve sheet 4 is the second layer stop valve sheet 4, the distance between the intersection point of the surface of the first layer stop valve sheet 4 toward the exhaust port 11 and the central axis of the exhaust port 11 and the surface of the exhaust valve sheet 2 away from the exhaust port 11 is D (1), the distance between the intersection point of the surface of the second layer stop valve sheet 4 toward the exhaust port 11 and the central axis of the exhaust port 11 and the surface of the exhaust valve sheet 2 away from the exhaust port 11 is D (2), the distance between the intersection point of the surface of the third layer stop valve sheet 4 toward the exhaust port 11 and the central axis of the exhaust port 11 and the surface of the exhaust valve sheet 2 away from the exhaust port 11 is D (3), and the following is satisfied: d (1) -D (2) < D (2) -D (3), D (1) -D (2) =c1× 1^2 =c1, D (2) -D (3) =c1× 2^2 =4c1, wherein C1 is a constant and C1 > 0.
In some embodiments of the present invention, the thickness of the stop valve sheet 4 decreases in sequence in the direction toward the exhaust port 11. It will be appreciated that the stiffness of the check valve plate 4 decreases in sequence in the direction towards the exhaust port 11. In the process that the exhaust port 11 is opened by the exhaust valve block 2, the exhaust valve block 2 is buffered due to the limiting action of the limiting valve block 4 close to the exhaust port 11 side, so that the speed of the exhaust valve block 2 is reduced, the thickness of the limiting valve block 4 is gradually decreased in the direction towards the exhaust port 11, the adhesion between the exhaust valve block 2 and the limiting valve block 4 is facilitated, and the limiting action on the exhaust valve block 2 is better achieved.
Further, the multi-layer limiting valve plates 4 are ordered in the direction towards the exhaust port 11, and the thickness of each layer of limiting valve plate 4 is Kn, and the following conditions are satisfied: kn=c2/n, where C2 is constant and C2 > 0. Therefore, the thickness of the limiting valve plate 4 is gradually decreased in the direction towards the exhaust port 11, so that the exhaust valve plate 2 and the limiting valve plate 4 are attached conveniently, and the exhaust valve plate 2 is better limited.
For example, in the example shown in fig. 4, the limit valve plate 4 has three layers, in the direction toward the exhaust port 11, a first layer, a second layer and a third layer, the limit valve plate 4 farthest from the exhaust port 11 is the first layer limit valve plate 4, the limit valve plate 4 closest to the exhaust port 11 is the third layer limit valve plate 4, the intermediate layer limit valve plate 4 is the second layer limit valve plate 4, the thickness of the first layer limit valve plate 4 is K1, the thickness of the second layer limit valve plate 4 is K2, the thickness of the third layer limit valve plate 4 is K3, and the following conditions are satisfied: k1 > k2 > K3, k1=c2/1=c1, k2=c2/2, k3=c2/3, where C2 is a constant and C2 > 0. It should be noted that, the thickness of the stop valve plate 4 in fig. 3 and fig. 4 is not the actual thickness of the stop valve plate 4, and is merely illustrative.
A bearing assembly 100 according to an embodiment of the present invention is described below with reference to fig. 1-4.
As shown in fig. 1 and 3, a bearing assembly 100 according to an embodiment of the present invention includes a bearing 20 and the above-described valve seat assembly 10, wherein at least part of the bearing 20 is formed as the valve seat 1. In the example shown in fig. 1 and 3, the valve seat 1 is partially constructed, and the exhaust valve plate 2, the stopper 3, and the stopper valve plate 4 are provided inside the bearing 20.
According to the bearing assembly 100 of the embodiment of the invention, by arranging the valve seat assembly 10, the limit valve plate 4 is arranged between the exhaust valve plate 2 and the limiter 3, and one end, adjacent to the exhaust port 11, of the limit valve plate 4 is inclined towards a direction away from the exhaust port 11 and is spaced from the limiter 3, and in the process that the exhaust valve plate 2 opens the exhaust port 11, the buffer effect can be played on the exhaust valve plate 2, so that excitation of the exhaust valve plate 2 for beating the limiter 3 is reduced, and beating noise of the exhaust valve plate 2 is reduced. In addition, because the thickness of the limiting valve plate 4 is greater than the thickness of the exhaust valve plate 2, the rigidity of the limiting valve plate 4 is greater than the rigidity of the exhaust valve plate 2, and the buffering effect on the exhaust valve plate 2 is better achieved, so that the clapping noise of the exhaust valve plate 2 is further reduced.
A compressor according to an embodiment of the present invention is described below. Wherein the compressor may be a rotary compressor.
A compressor according to an embodiment of the present invention includes the bearing assembly 100 described above. The compressor further comprises a housing, a motor assembly and a compression mechanism provided with the bearing assembly 100 described above.
Specifically, in motor element and compressing mechanism all located the casing, motor element includes the stator and rotationally locates the rotor in the stator, compressing mechanism includes the main shaft, the cylinder, foretell bearing assembly 100 and auxiliary bearing, the cylinder has compression chamber, the axial both ends of cylinder are located respectively to bearing 20 and auxiliary bearing, and be connected with the cylinder through the fastener, gas vent 11 and compression chamber intercommunication, the one end and the rotor of main shaft are connected, the other end of main shaft passes bearing 20 and stretches into compression intracavity, have eccentric block on the main shaft, the compression intracavity is located to the eccentric block, the compressed gas in the compression chamber can be through gas vent 11 discharge. The exhaust valve plate 2 is arranged on one side of the exhaust port 11 far away from the cylinder, when the pressure in the compression cavity is greater than the elastic force of the exhaust valve plate 2, the exhaust port 11 is opened by the exhaust valve plate 2, and the gas exhausted through the exhaust port 11 can enter the shell and finally be exhausted through the exhaust hole on the shell.
In addition, the pressure discharged at the exhaust port 11 may be discharged outside the housing after entering the sound deadening structure.
According to the compressor provided by the embodiment of the invention, the bearing assembly 100 comprising the valve seat assembly 10 is arranged, the limit valve plate 4 is arranged between the exhaust valve plate 2 and the limiter 3, one end, close to the exhaust port 11, of the limit valve plate 4 is inclined towards the direction away from the exhaust port 11 and is spaced from the limiter 3, and in the process that the exhaust valve plate 2 opens the exhaust port 11, the buffer effect can be played on the exhaust valve plate 2, so that excitation of the exhaust valve plate 2 for slapping the limiter 3 is reduced, and slapping noise of the exhaust valve plate 2 is reduced. In addition, because the thickness of the limiting valve plate 4 is greater than the thickness of the exhaust valve plate 2, the rigidity of the limiting valve plate 4 is greater than the rigidity of the exhaust valve plate 2, and the buffering effect on the exhaust valve plate 2 is better achieved, so that the clapping noise of the exhaust valve plate 2 is further reduced.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A valve seat assembly, comprising:
the valve seat is provided with an exhaust port;
one end of the exhaust valve plate covers the exhaust port to open or close the exhaust port, and the other end of the exhaust valve plate is connected with the valve seat;
the limiter is arranged on one side of the exhaust valve plate, which is far away from the exhaust port, one end of the limiter is connected with the valve seat, and the other end of the limiter is bent towards the direction far away from the exhaust port;
the limiting valve plate is positioned between the exhaust valve plate and the limiter, one end of the limiting valve plate is connected to the valve seat, the other end of the limiting valve plate is inclined towards the direction away from the exhaust port and is spaced from the limiter, and the thickness of the limiting valve plate is larger than that of the exhaust valve plate.
2. The valve seat assembly of claim 1, wherein the stop valve plate has a thickness K1 and the exhaust valve plate has a thickness K2, and the requirements are: 1< K1/K2<20.
3. The valve seat assembly according to claim 1, wherein a distance between an intersection of a surface of the retainer facing the exhaust port and a central axis of the exhaust port and a surface of the exhaust valve plate remote from the exhaust port is L1, a distance between an intersection of a surface of the retainer valve plate facing the exhaust port and a central axis of the exhaust port and a surface of the exhaust valve plate remote from the exhaust port is L2, and is satisfied: L2/L1 is less than or equal to 1/3 and less than or equal to 2/3.
4. The valve seat assembly of claim 1 wherein said check valve plate is multi-layered, and any two adjacent layers of said check valve plate are spaced apart at an end adjacent said exhaust port.
5. The valve seat assembly of claim 4, wherein a distance between adjacent two of the check valve plates increases gradually in a direction toward the exhaust port.
6. The valve seat assembly of claim 5, wherein the plurality of layers of the check valve plates are ordered in a direction toward the exhaust port, a distance between an intersection of a surface of each layer of the check valve plates toward the exhaust port and a central axis of the exhaust port and a surface of the exhaust valve plate away from the exhaust port is D (n), and is such that: d (n) -D (n+1) =c1×n≡2, where C1 is constant and C1 > 0.
7. The valve seat assembly of claim 4 wherein the thickness of the check valve sheet decreases in sequence in a direction toward the exhaust port.
8. The valve seat assembly of claim 7, wherein the plurality of layers of the check valve plates are ordered in a direction toward the exhaust port, each layer of the check valve plates having a thickness Kn and satisfying: kn=c2/n, where C2 is constant and C2 > 0.
9. A bearing assembly, comprising:
a bearing;
the valve seat assembly according to any one of claims 1-8, at least a portion of the bearing being formed as the valve seat.
10. A compressor comprising the bearing assembly of claim 9.
CN202211046837.0A 2022-08-30 2022-08-30 Valve seat assembly, bearing assembly and compressor Pending CN117662812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211046837.0A CN117662812A (en) 2022-08-30 2022-08-30 Valve seat assembly, bearing assembly and compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211046837.0A CN117662812A (en) 2022-08-30 2022-08-30 Valve seat assembly, bearing assembly and compressor

Publications (1)

Publication Number Publication Date
CN117662812A true CN117662812A (en) 2024-03-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211046837.0A Pending CN117662812A (en) 2022-08-30 2022-08-30 Valve seat assembly, bearing assembly and compressor

Country Status (1)

Country Link
CN (1) CN117662812A (en)

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