CN117489592A - Cylinder assembly and compressor - Google Patents

Cylinder assembly and compressor Download PDF

Info

Publication number
CN117489592A
CN117489592A CN202311602808.2A CN202311602808A CN117489592A CN 117489592 A CN117489592 A CN 117489592A CN 202311602808 A CN202311602808 A CN 202311602808A CN 117489592 A CN117489592 A CN 117489592A
Authority
CN
China
Prior art keywords
cylinder
cavity
air inlet
communication hole
hole
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
CN202311602808.2A
Other languages
Chinese (zh)
Inventor
黄纯浚
王珺
孙成龙
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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 Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202311602808.2A priority Critical patent/CN117489592A/en
Publication of CN117489592A publication Critical patent/CN117489592A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/40—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and having a hinged member
    • F04C18/44—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and having a hinged member with vanes hinged to the inner member
    • 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
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F04C29/0035—Equalization of pressure pulses
    • 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
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • 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
    • F04C29/06—Silencing
    • F04C29/068—Silencing the silencing means being arranged inside the pump housing
    • 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
    • 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
    • F04C2240/10—Stators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The invention provides a cylinder assembly and a compressor. The cylinder assembly comprises a cylinder, a groove is formed in the cylinder, a sliding sheet is arranged in the groove, the cylinder is provided with a cavity structure, the sliding sheet is at least partially located in the cavity, a cavity is formed in the sliding sheet, an air inlet hole is formed in the sliding sheet, the air inlet hole is communicated with the cavity, and the sliding sheet moves in the groove along the radial direction of the cylinder, so that the air inlet hole is communicated with or disconnected from the cavity. According to the invention, the defect that the vibration of the pump body part is aggravated because the air flow pulsation in the compression cavity of the air cylinder in the prior art is changed can be overcome.

Description

Cylinder assembly and compressor
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to a cylinder assembly and a compressor.
Background
The rolling rotor compressor consists of two parts, namely a pump body and a motor. The pump body assembly mainly comprises a cylinder, a crankshaft, a roller, a sliding vane and an upper flange and a lower flange, wherein the pump body crankshaft is in interference fit with a motor rotor, the R-shaped end face of the sliding vane is abutted against the outer circle surface of the roller under the action of spring force and back pressure in a shell in a line contact mode, and therefore the internal volume formed by the cylinder and the roller is divided into two crescent-shaped air suction cavities and compression cavities. The working principle is that the crankshaft periodically rotates under the action of the driving force of the motor, and drives the roller to synchronously and eccentrically rotate through the eccentric structure of the crankshaft, so as to drive the sliding vane to radially reciprocate in the sliding vane groove of the air cylinder, so that the volumes of the air suction cavity and the compression cavity are changed along with the reciprocating motion, and the periodical air suction, compression and exhaust processes of the compressor are realized.
With the increasing level of living, the demand for compressor noise levels has increased. The pneumatic noise of the compressor is taken as one of main sources of the compressor noise, and important optimization and improvement are needed in the design process of compressor products. Especially in recent years, the compressor gradually shows a miniaturized development trend, is limited by a design space, the volume of a cylinder of the compressor is further reduced, and airflow pulsation is greatly increased, so that the problems of pneumatic noise and vibration are more and more important in industry, the airflow pulsation in a cylinder compression cavity is changed in the running process of the existing rotor compressor, and the vibration of a pump body is aggravated easily under the influence of the airflow pulsation on one side of the cylinder compression cavity, especially under the unstable working condition, and the integral exhaust noise level is synchronously influenced.
Because the air flow pulsation in the compression cavity of the air cylinder in the prior art can change, the vibration of the pump body part is aggravated, the whole exhaust noise level is influenced and the like, the invention designs the air cylinder assembly and the compressor.
Disclosure of Invention
Therefore, the invention aims to overcome the defect that the vibration of a pump body part is aggravated due to the change of air flow pulsation in a compression cavity of a cylinder in the prior art, thereby providing a cylinder assembly and a compressor.
In order to solve the problems, the invention provides a cylinder assembly, which comprises a cylinder, wherein a groove is formed in the cylinder, a sliding sheet is arranged in the groove, the cylinder is provided with a cavity structure, the sliding sheet is at least partially positioned in the cavity, a cavity is formed in the sliding sheet, an air inlet hole is formed in the sliding sheet, the air inlet hole is communicated with the cavity, and the sliding sheet moves in the groove along the radial direction of the cylinder so as to enable the air inlet hole to be communicated with or disconnected from the cavity.
In some embodiments, the cylinder is provided with a communication hole, one end of the communication hole is communicated with the cavity, the other end of the communication hole is formed in the side wall of the groove, the other end of the communication hole is opposite to the air inlet hole, the sliding piece has a first position and a second position when the sliding piece moves in the groove, the communication hole is communicated with the air inlet hole in the first position when the sliding piece is located in the first position, and the communication hole is disconnected from the air inlet hole in the second position when the sliding piece is located in the second position.
In some embodiments, when the sliding vane is located at the second position, the other end of the communication hole and the air inlet hole have a minimum distance S1, which is satisfied, and S1 is greater than or equal to 3.5mm.
In some embodiments, along the depth direction of the groove, the height of the sliding vane is H, along the radial direction of the cylinder, the air inlet hole has a central axis, and the distance between the central axis and the end of the sliding vane facing the groove bottom of the groove is H, which satisfies h=h/2.
In some embodiments, the diameter of the communication hole is d, the depth of the air inlet hole is L along the axial direction of the air inlet hole, the volume of the chamber is V, the sound velocity of the refrigerant in the compressor is V, which satisfies the condition,
in some embodiments, an accommodating portion is disposed at one end of the groove opposite to the central axis of the cylinder, when the sliding vane is located at the second position, the sliding vane is located at least partially in the accommodating portion, the air inlet holes are all located in the groove, and the minimum distance between the air inlet holes and the accommodating portion is S2, which is satisfied, and S2 is greater than or equal to 3.5mm.
In some embodiments, the roller divides the cavity into an aspiration cavity and an evacuation cavity, the communication hole communicates with the aspiration cavity, and/or the communication hole communicates with the evacuation cavity.
In some embodiments, a roller is disposed within the cavity, and the slide is hinged to the roller.
In some embodiments, the roller is provided with an assembling groove, the cross section of the cylinder is taken as a projection surface, and the assembling groove and one end of the sliding sheet, which faces the roller, are arc-shaped.
The invention also provides a compressor comprising a cylinder assembly as claimed in any preceding claim.
The cylinder assembly and the compressor provided by the invention have the following beneficial effects:
through the air inlet and the cavity, when the roller rotates through the air suction cut-off angle theta, the sliding vane gradually extends out of the sliding vane groove, the air inlet is gradually communicated with the cavity, when the cylinder compression cavity is communicated with the air inlet, gas in the cavity can enter the inner cavity of the sliding vane along the air inlet, and the gas can be buffered under the action of the cavity, so that gas pulsation in the compression and exhaust processes is greatly reduced, and the vibration and noise level of the pump body are improved; when the roller rotates to the second exhaust section, the sliding vane gradually retracts into the sliding vane groove, and the air inlet hole is gradually disconnected from the cavity. The cavity is ensured to be periodically communicated with the cavity, the condition that compressed gas and air suction are blown in and back flow is prevented from occurring in the resonant cavity, and the energy level of the compressor is prevented from being influenced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
FIG. 1 is a schematic view of a cylinder assembly according to an embodiment of the present invention;
FIG. 2 is a state diagram of a cylinder assembly in which a slide is fully extended;
FIG. 3 is a state diagram of the cylinder assembly of the embodiment of the present invention when the sliding vane is completely retracted;
FIG. 4 is a side view of a slide in a cylinder assembly according to an embodiment of the present invention;
FIG. 5 is an assembly view of a cylinder assembly according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of FIG. 5;
fig. 7 is an exploded view of fig. 5.
The reference numerals are expressed as:
1. a chamber; 2. an air inlet hole; 3. a sliding sheet; 4. a cylinder; 5. an air suction cavity; 6. an exhaust chamber; 7. a roller; 8. a crankshaft; 9. a first flange; 10. a second flange; 11. a housing part; 12. a groove; 13. the communication hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
Referring to fig. 1 to 7 in combination, according to an embodiment of the present invention, there is provided a cylinder assembly including a cylinder 4, a groove 12 is provided on the cylinder 4, a sliding vane 3 is provided in the groove 12, the cylinder 4 has a cavity structure, the sliding vane 3 is at least partially located in the cavity, a chamber 1 is provided in the sliding vane 3, an air inlet hole 2 is provided on the sliding vane 3, the air inlet hole 2 is communicated with the chamber 1, and the sliding vane 3 moves in the groove along a radial direction of the cylinder 4 so as to make the air inlet hole 2 be communicated with or disconnected from the cavity. According to the technical scheme, after the roller rotates through the air suction cut-off angle theta, the sliding vane 3 gradually extends out of the sliding vane groove, the air inlet 2 is gradually communicated with the cavity, when the cylinder compression cavity is communicated with the air inlet 2, gas in the cavity can enter the sliding vane inner cavity 1 along the air inlet 2, the gas can be buffered under the action of the cavity 1, so that gas pulsation in the compression and exhaust process is greatly reduced, and pump body vibration and noise level are improved; when the roller rotates to the second half of the exhaust, the sliding vane 3 gradually retracts into the sliding vane groove, and the air inlet hole 2 is gradually disconnected from the cavity. The cavity 1 and the cavity can be ensured to be periodically communicated, the condition that compressed gas and air suction are blown in and back flow in the resonant cavity is prevented, and the influence on the energy level of the energy is avoided. In the cylinder assembly of the invention, the groove 12 is arranged on the inner wall of the cylinder 4, the sliding vane 3 is at least partially positioned in the cavity, and the rest is positioned in the groove 12. The inner side wall of the groove 12 is taken as a projection surface, preferably, the projection of the cavity 1 is round, the projection of the air inlet hole 2 is long, so that the volume of the cavity 1 and the air inflow of the air inlet hole 2 are maximized, and of course, the cavity 1 and the air inlet hole 2 can be selected to be rectangular or have other special-shaped structures.
In some embodiments, the cylinder 4 is provided with a communication hole 13, one end of the communication hole 13 is communicated with the cavity, the other end of the communication hole is formed on the side wall of the groove 12, the other end of the communication hole 13 is opposite to the air inlet hole 2, the sliding piece 3 has a first position and a second position when the sliding piece 3 moves in the groove, the communication hole 13 is in communication with the air inlet hole 2 in the first position, and the communication hole 13 is in disconnection with the air inlet hole 2 in the second position when the sliding piece 3 is in the second position. In the technical scheme, the communication hole 13 is arranged on the inner wall of the cylinder 4, an included angle exists between the central line axis of the communication hole 13 and the diameter of the cylinder 4, namely, the communication hole 13 is obliquely arranged, the air inlet hole 2 is communicated with the cavity through the communication hole 13, and when the compressor operates, the refrigerant is periodically sucked and compressed in the cavity of the cylinder, so that gas pulsation is very easy to generate, and the vibration and noise level of the pump body are influenced. When the roller rotates by the suction cut-off angle theta, the sliding vane 3 gradually extends out of the sliding vane groove, the air inlet hole 2 is gradually communicated with the communication hole 13, when the compression cavity of the air cylinder is communicated with the air inlet hole 2, the air in the cavity can enter the air inlet hole 2 along the communication hole 13 and then enter the cavity 1, and the air can be buffered under the action of the cavity 1, so that the air pulsation in the compression and exhaust process is greatly reduced, and the vibration and noise level of the pump body are improved; when the roller rotates to the latter half of the exhaust, the slide 3 gradually retracts into the slide groove, and the air intake hole 2 is also gradually disconnected from the communication hole 13. The cavity 1 and the cavity can be ensured to be periodically communicated, the condition that compressed gas and air suction are blown in and back flow in the resonant cavity is prevented, and the influence on the energy level of the energy is avoided.
In some embodiments, when the sliding vane 3 is located at the second position, a minimum distance S1 is provided between the other end of the communication hole 13 and the air inlet hole 2, which satisfies that S1 is equal to or greater than 3.5mm. In this technical scheme, the gleitbretter 3 is located the second position, and the other end of intercommunicating pore 13 with inlet port 2 does not communicate, and in the compressor operation in-process, gleitbretter 3 moves with roller 7 and carries out reciprocating motion. When the roller 7 is operated to the suction cut-off angle θ, the compressed gas inside the chamber 1 exists: can leak into the air suction cavity along the communication hole 13, is communicated with the air suction hole of the air cylinder, and has the minimum distance S1 between the other end of the communication hole 13 and the air inlet hole 2, which satisfies that S1 is more than or equal to 3.5mm. The communication hole 13 and the air inlet hole 2 are kept with enough safe sealing distance, after the air suction is stopped, the communication hole 13 is not communicated with the air inlet hole 2 when the air discharge is started, so that backflow is prevented, the minimum safe distance of oil film sealing is ensured, the occurrence of backflow is prevented, and the energy efficiency level of the compressor is influenced.
In some embodiments, the height of the sliding vane 3 is H along the depth direction of the groove 12, the air inlet hole 2 has a central axis along the radial direction of the cylinder 4, and the distance between the central axis and the end of the sliding vane 3 facing the bottom of the groove 12 is H, which satisfies h=h/2. In this technical scheme, gleitbretter 3 is located the first position, and inlet port 2 communicates with each other with intercommunicating pore 13, and high pressure gas can produce local gas effort to gleitbretter 3 when entering along the inlet port, leads to the gleitbretter to take place the deflection. In order to ensure the optimization of the stress of the sliding vane, the distance from the horizontal center line of the side air inlet to the lower end face is set to be H, and the total height of the sliding vane is H, preferably h=H/2.
In some embodiments, the diameter of the communication hole 13 is d, the depth of the air inlet hole 2 is L along the axial direction of the air inlet hole 2, the volume of the chamber 1 is V, the sound velocity of the refrigerant in the compressor is V, which satisfies the condition,according to the technical scheme, the main silencing frequency band is 630 Hz-2000 Hz according to the silencing characteristics of the resonant cavity. As the effective cross-sectional area of the air inlet hole 2 changes in real time in the reciprocating motion of the sliding vane 3, broadband silencing can be performed. Through the diameter d of the communication hole 13, along the axial direction of the air inlet hole 2, the sound velocity in the refrigerant is c, the section diameter d of the side air inlet hole is d, the depth of the air inlet hole is L, the hollow volume in the sliding vane is V, which satisfies the condition->So as to optimize the resonance noise elimination effect inside the sliding vane.
In some embodiments, a receiving portion 11 is disposed at an end of the groove 12 facing away from the central axis of the cylinder 4, when the sliding vane 3 is located at the second position, the sliding vane 3 is located at least partially in the receiving portion 11, the air intake holes 2 are all located in the groove 12, and a minimum distance S2 is provided between the air intake holes 2 and the receiving portion 11, which satisfies that S2 is greater than or equal to 3.5mm. In this technical scheme, the accommodation portion 11 is the groove bottom hole, along the radial of cylinder 4, if inlet port 2 radial length overlength, can appear the gas leakage of cavity 1 in the accommodation portion 11, produces great clearance volume, influences compressor performance level. The distance between the air inlet hole 2 and the bottom hole of the groove is S2 at the position where the end of the air inlet hole 2 far away from the roller 7 is close to the bottom hole of the groove. Therefore, in order to ensure that enough safe sealing distance is reserved, S2 is more than or equal to 3.5mm.
In some embodiments, the roller 7 divides the cavity into an intake chamber 5 and an exhaust chamber 6, the communication hole 13 communicates with the intake chamber 5, and/or the communication hole 13 communicates with the exhaust chamber 6. In the technical scheme, the exhaust cavity 6 is a compression cavity of the compressor, and the air inlet hole 2 and the inclined through hole on the inner wall of the cylinder can be formed on one side close to the air suction side of the cylinder at the same time so as to reduce the air pulsation in the air suction process. The principle is the same as the compression chamber principle. When the compression cavity of the air cylinder is communicated with the air inlet hole 2, air in the compression cavity can enter the cavity 1 along the air inlet hole 2, and the air can be buffered under the action of the cavity 1, so that air pulsation in the process of compressing and exhausting is greatly reduced, and vibration and noise level of a pump body are improved.
In some embodiments, a roller 7 is disposed in the cavity, and the sliding vane 3 is hinged to the roller 7. In the technical scheme, a crankshaft 8 is arranged on a roller 7, the roller 7 is driven to rotate by the crankshaft 8, and when the roller rotates to one end of a groove 12, the sliding vane 3 is fully pressed back into the groove 12. Because the spring hole is required to be designed in the radial direction for the installation of a spring in the existing pump body sliding vane groove, if the design of the air inlet hole on the side face of the sliding vane is overlarge, the condition that the air in the resonant cavity in the sliding vane leaks into the spring hole and flows into the shell can possibly occur, and therefore the sliding vane 3 and the roller 7 in the air cylinder assembly are required to be connected in a hinged mode, the design of the spring hole is omitted, and the problem that the design of the air inlet hole on the side face is limited due to leakage is solved.
In the cylinder assembly of the present invention, in order to prevent vortex flow generated when gas enters the chamber 1 along the gas inlet hole 2, it is preferable that the gas inlet hole 2, the chamber 1 and the connecting portion of the compression chamber of the cylinder have rounded corners or other streamline transitions in the case that vortex flow occurs when gas flows through the edge of the gas inlet hole 2.
In some embodiments, the roller 7 is provided with an assembling groove, and the cross section of the cylinder 4 is taken as a projection plane, and the assembling groove and one end of the sliding vane 3, which faces the roller 7, are arc-shaped.
Referring to fig. 2, an assembly groove is formed in the roller 7, and the cross section of the cylinder 4 is taken as a projection surface, so that the assembly groove and one end of the sliding vane 3, which faces the roller 7, are arc-shaped. Thereby achieving the aim of hinging the sliding vane 3 with the roller 7, and other hinging modes are possible.
The cylinder assembly can solve the problem that the vibration of the pump body part is aggravated and the integral exhaust noise level is synchronously influenced when the compressor is in a working state, particularly when the working condition is unstable.
The invention also provides a compressor comprising a cylinder assembly as claimed in any preceding claim.
In the compressor, the first flange 9 and the second flange 10 are respectively arranged at two ends of the cylinder 4, the pump body crankshaft is in interference fit with the motor rotor, the R-shaped end face of the sliding vane is propped against the outer circle surface of the roller under the action of spring force and back pressure in the shell in a line contact mode, and therefore the internal volume formed by the cylinder and the roller is divided into two crescent suction cavities and compression cavities. The working principle is that the crankshaft periodically rotates under the action of the driving force of the motor, and drives the roller to synchronously and eccentrically rotate through the eccentric structure of the crankshaft, so as to drive the sliding vane to radially reciprocate in the sliding vane groove of the air cylinder, so that the volumes of the air suction cavity and the compression cavity are changed along with the reciprocating motion, and the periodical air suction, compression and exhaust processes of the compressor are realized. The compressor of the present invention may be a rotary compressor as well as a rotary fluid machine having a similar structure, such as a rotary expander, a sliding vane compressor, a sliding vane expander, etc.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.

Claims (10)

1. The utility model provides a cylinder subassembly, its characterized in that, includes cylinder (4), be provided with recess (12) on cylinder (4), be provided with gleitbretter (3) in recess (12), cylinder (4) have the cavity structure, gleitbretter (3) are located at least partially in the cavity, have cavity (1) in gleitbretter (3), be provided with inlet port (2) on gleitbretter (3), inlet port (2) with cavity (1) are linked together, follow the radial of cylinder (4), gleitbretter (3) are in the recess motion, so that inlet port (2) with cavity intercommunication or disconnection.
2. Cylinder assembly according to claim 1, characterized in that the cylinder (4) is provided with a communication hole (13), one end of the communication hole (13) is communicated with the cavity, the other end of the communication hole is arranged on the side wall of the groove (12), the other end of the communication hole (13) is opposite to the air inlet hole (2), the sliding piece (3) has a first position and a second position when the sliding piece (3) moves in the groove, the communication hole (13) is communicated with the air inlet hole (2) in the first position, and the communication hole (13) is disconnected from the air inlet hole (2) in the second position when the sliding piece (3) is positioned in the second position.
3. A cylinder assembly according to claim 2, characterized in that when the slide (3) is in the second position, the other end of the communication hole (13) has a minimum distance S1 from the intake hole (2) which satisfies that S1 is not less than 3.5mm.
4. A cylinder assembly according to claim 2, characterized in that the height of the vane (3) in the depth direction of the recess (12) is H, and in the radial direction of the cylinder (4), the intake port (2) has a central axis which is at a distance H from the end of the vane (3) facing the bottom of the recess (12), which satisfies H = H/2.
5. A cylinder assembly according to claim 2, wherein the communication hole (13) has a diameter d, the depth of the intake hole (2) is L in the axial direction of the intake hole (2), the volume of the chamber (1) is V, the sound velocity of the refrigerant in the compressor is V, which satisfies,
6. cylinder assembly according to claim 2, characterized in that the end of the recess (12) facing away from the centre axis of the cylinder (4) is provided with a receiving portion (11), when the slide (3) is in the second position, the slide (3) is at least partly located in the receiving portion (11), the air inlet opening (2) is all located in the recess (12), the minimum distance S2 between the air inlet opening (2) and the receiving portion (11) is satisfied, which satisfies that S2 is not less than 3.5mm.
7. Cylinder assembly according to claim 2, characterized in that the roller (7) divides the cavity into an intake chamber (5) and an exhaust chamber (6), the communication hole (13) being in communication with the intake chamber (5) and/or the communication hole (13) being in communication with the exhaust chamber (6).
8. Cylinder assembly according to claim 2, characterized in that a roller (7) is provided in the cavity, the slide (3) being hinged to the roller (7).
9. A cylinder assembly according to claim 2, characterized in that the roller (7) is provided with an assembly groove, the cross section of the cylinder (4) is taken as a projection surface, and the assembly groove and the end of the sliding sheet (3) facing the roller (7) are arc-shaped.
10. A compressor comprising a cylinder assembly according to any one of claims 1 to 9.
CN202311602808.2A 2023-11-28 2023-11-28 Cylinder assembly and compressor Pending CN117489592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311602808.2A CN117489592A (en) 2023-11-28 2023-11-28 Cylinder assembly and compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311602808.2A CN117489592A (en) 2023-11-28 2023-11-28 Cylinder assembly and compressor

Publications (1)

Publication Number Publication Date
CN117489592A true CN117489592A (en) 2024-02-02

Family

ID=89676388

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311602808.2A Pending CN117489592A (en) 2023-11-28 2023-11-28 Cylinder assembly and compressor

Country Status (1)

Country Link
CN (1) CN117489592A (en)

Similar Documents

Publication Publication Date Title
US11732623B2 (en) Muffler, compressor assembly, and refrigerator
JP2013241851A (en) Gas compressor
JPH02291496A (en) Delivery system for tumbling piston rotary compressor
CN101629563A (en) Silencer with balancing chamber
JP2014001698A (en) Vane type compressor
CN117489592A (en) Cylinder assembly and compressor
CN114151347B (en) Cylinder, pump body structure, compressor and air conditioner
KR102201409B1 (en) A rotary compressor
CN112460022A (en) Pump body assembly and fluid machine with same
JP2011099388A (en) Vacuum pump
CN111963409A (en) Air suction silencer
CN215566601U (en) Static vortex disc and carbon dioxide compressor
CN216044402U (en) Cylinder, compressor and air conditioner
CN216842226U (en) Compressor and cylinder thereof
CN217354745U (en) Rear suction rotary vane type automobile air conditioner compressor
CN111059056A (en) Pump body assembly, rotary compressor and air conditioner
CN110863985A (en) Compressor and refrigeration equipment
CN101070831A (en) Hermetic compressor
CN216111264U (en) Single-cylinder double-suction exhaust compressor pump body and compressor
CN211116587U (en) Cylinder for eliminating abnormal sound of compressor and compressor
CN220850021U (en) Pump body assembly, compressor and refrigeration equipment
CN210196011U (en) Pump body subassembly, compressor and refrigeration plant
CN117329125A (en) Pump body assembly, compressor and air conditioner
CN213419359U (en) Cylinder and compressor capable of reducing damage of blades
CN212508808U (en) Rolling rotor type compressor cylinder and compressor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination