CN112610489A - Pump body assembly, compressor and air conditioner with same - Google Patents

Pump body assembly, compressor and air conditioner with same Download PDF

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Publication number
CN112610489A
CN112610489A CN202011496154.6A CN202011496154A CN112610489A CN 112610489 A CN112610489 A CN 112610489A CN 202011496154 A CN202011496154 A CN 202011496154A CN 112610489 A CN112610489 A CN 112610489A
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CN
China
Prior art keywords
flange
cavity
cylinder
partition
pump body
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.)
Granted
Application number
CN202011496154.6A
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Chinese (zh)
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CN112610489B (en
Inventor
金冀龙
柳鹏
韩鑫
丁少鹏
赵庆富
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 Green Refrigeration Technology Center Co Ltd of Zhuhai
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Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
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Application filed by Gree Green Refrigeration Technology Center Co Ltd of Zhuhai filed Critical Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority to CN202011496154.6A priority Critical patent/CN112610489B/en
Publication of CN112610489A publication Critical patent/CN112610489A/en
Application granted granted Critical
Publication of CN112610489B publication Critical patent/CN112610489B/en
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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
    • 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
    • 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
    • F04C18/344—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 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
    • 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
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • 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
    • F04C29/061—Silencers using overlapping frequencies, e.g. Helmholtz resonators
    • 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

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

Abstract

The application provides a pump body subassembly, compressor and have its air conditioner includes: a flange portion and a cylinder; the cylinder is provided with a compression cavity; the flange part comprises a flange end part; the end part of the flange is provided with a cavity; the position of the cavity corresponds to the position of the compression cavity. According to pump body subassembly, compressor and have its air conditioner of this application, can improve compressor reliability under the condition that does not reduce compressor performance.

Description

Pump body assembly, compressor and air conditioner with same
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to a pump body assembly, a compressor and an air conditioner with the pump body assembly and the compressor.
Background
At present, because the rotor compressor has the advantages of simple structure, relatively low cost and high energy efficiency, the rotor compressor is widely popularized and applied in the market, the frequency conversion proportion is continuously improved in recent years, and compared with a fixed-frequency compressor, the frequency conversion compressor can realize a larger refrigerating/heating capacity range by adjusting the rotating speed, but simultaneously can meet the requirements of reliability and energy efficiency when used under different working conditions. The pump body structure of the conventional compressor adopts a flange, a cylinder, a partition plate (a single cylinder is not needed, and double cylinders and multiple cylinders are provided) and a roller to form a compression cavity, the compression cavity is sealed by using screws for fixation, and a crankshaft and the flange are adopted to form an operation shaft.
However, the flange in the pump body structure is easy to deform due to the action of the stress applied by the screw and the external force in the compression cavity, and especially when the pump body structure is operated under a heavy working condition and a high frequency, the deformation of the end face of the flange is aggravated, the gap between the flange and the roller is affected, the fluid lubrication between the flange and the roller and between the partition plate and the end face of the roller cannot be maintained, the end face abrasion is easily generated under the conditions of oil-lacking lubrication and dry friction, and the reliability of the. Generally, when the reliability of the compressor is not satisfied, enlarging the clearance is a main means for improving the reliability, but this causes a reduction in the performance of the compressor.
Therefore, how to provide a pump body assembly capable of improving the reliability of the compressor without reducing the performance of the compressor, the compressor and the air conditioner with the compressor become problems to be solved urgently by those skilled in the art.
Disclosure of Invention
Therefore, an object of the present invention is to provide a pump body assembly, a compressor and an air conditioner having the same, which can improve the reliability of the compressor without reducing the performance of the compressor.
In order to solve the above problem, the present application provides a pump body assembly including: a flange portion and a cylinder; the cylinder is provided with a compression cavity; the flange part comprises a flange end part; the end part of the flange is provided with a cavity; the position of the cavity corresponds to the position of the compression cavity.
Preferably, a groove is formed in the end face, close to the cylinder, of the end part of the flange; the groove forms a cavity.
Preferably, the pump body assembly further comprises a partition; the partition part is arranged between the flange part and the cylinder and separates the groove from the cylinder.
Preferably, the compression chamber comprises a suction side and a discharge side; the partition part is provided with a through hole; the through hole is communicated with the exhaust side of the compression cavity and the groove.
Preferably, the flange part is provided with a flange exhaust hole; the flange exhaust hole is communicated with the groove; the position of the flange exhaust hole corresponds to the position of the suction side of the compression cavity.
Preferably, the pump body assembly further comprises a crankshaft; the flange part is provided with a flange shaft hole; the partition part is provided with a partition part shaft hole; the crankshaft is arranged in the flange shaft hole and the separating part shaft hole; the cross-sectional diameter of the partition is C; the diameter of the cross section of the flange shaft hole is A; wherein A is less than or equal to C;
and/or the maximum cross-sectional diameter of the cavity is B; the inner diameter of the compression cavity is D; wherein B is less than or equal to D;
and/or, the pump body assembly further comprises a roller; the roller is arranged in the cylinder; the crankshaft includes an eccentric portion; the roller is sleeved outside the eccentric part; the outer diameter of the roller is L; the eccentric amount of the eccentric part is P; wherein, L-2P-C is more than or equal to 6.
Preferably, the pump body assembly further comprises a fixing member; the fixing piece comprises a screw hole and a screw; the screw holes comprise flange screw holes, separating screw holes and cylinder screw holes; the flange screw hole is arranged on the flange part; the separating screw hole is arranged on the separating part; the air cylinder screw hole is arranged on the air cylinder; screws are passed through the flange screw holes, the partition screw holes and the cylinder screw holes to fix the flange portion, the partition portion and the cylinder.
Preferably, the fixing member is provided in plurality; a plurality of fasteners are circumferentially disposed about a central axis of the crankshaft; the space between two adjacent fixing pieces corresponds to the shape of the cavity;
and/or the distances between each fixing piece and the central axis of the crankshaft are equal.
Preferably, the cavity is a noise reduction cavity;
and/or the partition is a partition.
According to still another aspect of the present application, there is provided a compressor, including a pump body assembly, the pump body assembly being the above pump body assembly.
According to still another aspect of the present application, there is provided an air conditioner including a compressor, the compressor being the above-mentioned compressor.
According to the pump body assembly, the compressor and the air conditioner with the pump body assembly, due to the existence of the cavity, the flange plane deformation part cannot extrude the matching end face of the flange and the roller, and therefore deformation is avoided; the compression cavity abrasion caused by uneven gaps caused by flange end face deformation is avoided, the reliability under the equal gap is improved, and the energy efficiency is higher under the equal reliability; the reliability of the compressor can be improved under the condition that the performance of the compressor is not reduced.
Drawings
FIG. 1 is a schematic structural view of a pump body assembly according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a crankshaft according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a compressor according to an embodiment of the present application.
The reference numerals are represented as:
1. a cylinder; 11. a cylinder screw hole; 2. a flange portion; 21. flange screw holes; 3. a partition portion; 31. a spacer screw hole; 4. a crankshaft; 41. an eccentric portion; 5. a roller; 6. a cylinder partition plate; 71. a housing; 72. an upper cover assembly; 73. a lower cover assembly; 8. a suction structure; 91. a motor stator; 92. a rotor of an electric machine.
Detailed Description
Referring collectively to FIG. 1, a pump body assembly comprising: a flange portion 2 and a cylinder 1; the cylinder 1 has a compression chamber; the flange portion 2 includes a flange end portion; the end part of the flange is provided with a cavity; the position of the cavity corresponds to the position of the compression cavity, when the flange is fixed with the cylinder through the screw, the end face of the flange generates different deformation states due to uneven stress of the screw, but due to the existence of the cavity, the plane deformation part of the flange cannot extrude the matching end face of the flange and the roller 5, so that the deformation generated is avoided; the compression cavity abrasion caused by uneven gaps caused by flange end face deformation is avoided, the reliability under the equal gap is improved, and the energy efficiency is higher under the equal reliability; the reliability of the compressor can be improved under the condition that the performance of the compressor is not reduced.
The application also discloses some embodiments, and a groove is formed in the end face, close to the cylinder 1, of the end part of the flange; the groove forms a cavity; the outer diameters of the groove and the end part are kept with enough wall thickness, and the processing and sealing conditions of screw holes are met. The cross section of the groove can be circular or irregular, and the groove can be set into a Homholtz resonant cavity, so that the noise reduction function is realized.
The application also discloses embodiments in which the pump body assembly further comprises a partition 3; the partition portion 3 is provided between the flange portion 2 and the cylinder 1, and partitions the groove from the cylinder 1. The flange and the separating part 3 are combined to realize the functional separation of the bearing piece and the sealing piece, and the matching effect of the bearing and the sealing effect of the compression cavity can be simultaneously met by respectively adopting suitable materials; i.e. the flange fulfils the function of a bearing and the partition 3 fulfils the function of a sealing; the partition part 3 is adopted to realize the function of a sealing element, namely, the surface of the partition part 3 is used as the sealing surface of the cylinder 1; compare in flange tip as the sealed face of cylinder 1, the structure is simplified, and finish machining ability promotes, and compression chamber surface accuracy improves and can further promote efficiency. The partition 3 may be made of a metal material, and as the end face of the sealed chamber, ceramics, high-strength plastics, etc. having higher hardness and better surface properties may be selected as necessary. And, adopt flange portion 2 and 3 this kind of modes of partition portion for the atress is concentrated on the flange when the pump body subassembly passes through the screw to be fixed, and the deformation of flange terminal surface can not influence sealed chamber, and behind flange atress compresses tightly the flange baffle, the peripheral atress of flange baffle is more even, and it is more suitable to warp. And the design of the partition part 3 ensures that the material and the surface treatment selectivity of the sealing end surface are stronger, thereby providing conditions for improving the sealing performance and the surface wear resistance.
The present application further discloses embodiments in which the compression chamber includes a suction side and a discharge side; the partition part 3 is provided with a through hole; the through hole is communicated with the exhaust side of the compression cavity and the groove.
The application also discloses some embodiments, the flange part 2 is provided with a flange exhaust hole; the flange exhaust hole is communicated with the groove; the position of the flange exhaust hole corresponds to the position of the suction side of the compression cavity.
The compression cavity in the cylinder 1 is divided into an air suction cavity and an air exhaust cavity, and low-pressure gas and high-pressure gas respectively exist correspondingly, and because the compression cavity is established in the motion process through the continuous rotation of the crankshaft 4, the volumes of the air suction cavity and the air exhaust cavity are continuously changed; the maximum point of the overall change is on the suction side and the exhaust side; under the pressure difference establishment, when the high-pressure gas at the exhaust side in the cylinder 1 enters the cavity through the through hole and is filled with the gas, the flange exhaust hole is connected with the inner cavity of the shell 71, and the pressure at the exhaust side is smaller than the overall pressure of the cavity, so that the position of the flange exhaust hole corresponds to the position of the suction side of the compression cavity, the local pressure difference of the surface of the partition plate can be more balanced, and the deformation influence caused by the gas pressure difference is reduced. Therefore, the flange cavity can be in a dynamic pressure difference environment, and the air suction side pressure difference deformation and the air exhaust side pressure difference deformation of the flange partition plate are closer. The gas in the cylinder 1 is discharged into the cavity through the through hole and then discharged through the flange exhaust hole. A first exhaust valve plate is arranged above the through hole, namely in the groove, and a second exhaust valve plate is arranged outside the flange exhaust hole; therefore, the groove can be used as a pressure stabilizing cavity to ensure that the pressure tends to be stable before high-pressure exhaust gas enters the cavity of the compressor, and the exhaust pulsation noise is reduced; the cavity has the functions of noise reduction and pressure stabilization.
Referring to fig. 2 in combination, the present application further discloses embodiments in which the pump block assembly further includes a crankshaft 4; the flange part 2 is provided with a flange shaft hole; the partition 3 has a partition shaft hole; the crankshaft 4 is arranged in the flange shaft hole and the separating part shaft hole; the cross-sectional diameter of the partition 3 is C; the diameter of the cross section of the flange shaft hole is A; wherein A is less than or equal to C; the crankshaft 4 can be ensured to pass through the partition plate and the flange in a coaxial diameter, and the flange shaft neck and the crankshaft 4 form a constraint and sealing surface, so that the establishment of the inner cavity space at the end part of the flange is ensured.
The maximum cross-sectional diameter of the cavity is B; the inner diameter of the compression cavity is D; d is not more than B, and the D is not more than B, so that the fixing effect of the pump body can be effectively ensured, and the deformation is reduced;
the pump body assembly further comprises a roller 5; the roller 5 is arranged in the cylinder 1; the crankshaft 4 includes an eccentric portion 41; the roller 5 is sleeved outside the eccentric part 41; the outer diameter of the roller 5 is L; the eccentric amount of the eccentric portion 41 is P; wherein, L-2P-C is more than or equal to 6; under the condition of ensuring the assembly of the pump body, the pump body can ensure sufficient sealing distance, and the compressed gas is prevented from leaking from the gap between the roller 5 and the partition plate; can effectively guarantee the sealing effect of the pump body.
When the pump body component is a double cylinder, a cylinder clapboard 6 is arranged between the first cylinder 1 and the second cylinder 1; the cylinder partition 6 partitions the first cylinder 1 and the second cylinder 1. The flange part 2 comprises an upper flange and a lower flange; a first partition part 3 is arranged between the upper flange and the first cylinder 1; a second partition part 3 is arranged between the lower flange and the second cylinder 1; the end part of the upper flange is provided with a first cavity; the end of the lower flange is provided with a second cavity. The pump body assembly includes, from top to bottom, an upper flange, a first partition 3, a first cylinder 1, a cylinder partition 6, a second partition 3, and a lower flange.
The upper flange is provided with a first cavity; the lower flange is provided with a second cavity; a first roller 5 is arranged in the first cylinder 1; the first cylinder 1 has a first compression chamber; the crankshaft 4 includes a first eccentric portion 41; the first roller 5 is sleeved outside the first eccentric part 41; a second roller 5 is arranged in the second cylinder 1; the second cylinder 1 is provided with a second compression cavity; the crankshaft 4 comprises a second eccentric portion 41; the second roller 5 is sleeved outside the second eccentric part 41; the shaft diameter of the long shaft of the crankshaft 4 is phi J; the diameter of the first eccentric portion 41 is phi K; the diameter of the second eccentric portion 41 is Φ M; the shaft diameter of the short shaft of the crankshaft 4 is phi O; the inner diameter of the cylinder partition plate 6 is phi E; the outer diameter of the first roller 5 is phi L; the eccentricity of the first eccentric portion 41 is phip; the outer diameter of the second roller 5 is φ N; the eccentric amount of the second eccentric portion 41 is Φ Q; the cross-sectional diameter of the first partition 3 is Φ C; the diameter of the cross section of the shaft hole of the upper flange is phi A; the cross-sectional diameter of the second partition 3 is phi G; the diameter of the cross section of the shaft hole of the lower flange is phi I; the maximum cross-sectional diameter of the first cavity is phi B; the inner diameter of the first compression cavity is phi D; the maximum cross-sectional diameter of the second cavity is phi H; the inner diameter of the second compression cavity is phi F; wherein I is less than or equal to G; N-2Q-G is more than or equal to 6; L-2P-C is more than or equal to 6; a is less than or equal to C; h is less than or equal to F; b is less than or equal to D.
The application also discloses some embodiments, the pump body assembly further comprises a fixing piece; the fixing piece comprises a screw hole and a screw; the screw holes comprise flange screw holes 21, separating screw holes 31 and screw holes of the cylinder 1; the flange screw hole 21 is arranged on the flange part 2; the partition screw hole 31 is provided in the partition portion 3; the air cylinder 1 is arranged on the air cylinder 1 through screw holes; screws are passed through the flange screw hole 21, the partition screw hole 31 and the cylinder 1 screw holes to fix the flange portion 2, the partition portion 3 and the cylinder 1.
The application also discloses a plurality of embodiments, the fixing piece is arranged in a plurality of pieces; a plurality of fixed members are circumferentially arranged around the central axis of the crankshaft 4; the space between two adjacent fixing pieces corresponds to the shape of the cavity; when the cross section of cavity is circular, the mounting is through adopting the partition design, and the distance homogeneous phase between every mounting and two adjacent mountings promptly, and the inner chamber is regular shape for example when cylindrical, can guarantee that the atress of each screw hole is even, and local deflection is equivalent with the direction of change, makes the whole deformation effect that the atress produced unanimous, guarantees that the deformation condition of going up the flange baffle is steady.
When the cavity is set to be a special-shaped cavity, the optimal distribution point is confirmed by combining model operation when the cavity has noise reduction or other special functions, so that the local deformation and the coupling relation are equivalent, the overall deformation effect tends to be consistent, and the deformation condition of the flange partition plate is stable; so that the intervals between the respective screw holes are not equal.
The present application also discloses embodiments in which the distance between each of the fasteners and the central axis of the crankshaft 4 is equal.
The application also discloses some embodiments, the cavity is a noise reduction cavity, and the groove can be set as a Homholtz resonant cavity, so that the cavity has a noise reduction function; such as by providing a plurality of helmholtz resonator cavities in the inner surface of the recess.
And/or the partition part 3 is a partition plate which is in small clearance fit with the end surface of the roller 5 and forms a sealing cavity with the cylinder 1; because the existence of cavity, avoid flange terminal surface to warp and produce the extrusion to the 5 fitting surfaces of roller of baffle, and the baffle is fixed to exert effort through the flange secondary and realize, and the atress is more even, and it is littleer to have guaranteed that the deflection of cylinder 1 compression chamber atress screw force is less, can satisfy the high reliability under littleer design clearance, realizes the efficiency promotion. The structure also has the advantages of improving the finish machining capability, simplifying the surface treatment process, reducing the noise and the like.
Referring to fig. 3 in combination, according to an embodiment of the present application, there is provided a compressor including a pump body assembly, where the pump body assembly is the pump body assembly described above. The compressor is a rotor compressor.
The compressor comprises a suction structure 8, a pump body assembly, a motor stator 91, a motor rotor 92, a shell 71, the pump body assembly and the like, which jointly form a compressor body. The pump body subassembly includes: the device comprises an upper flange, an upper flange clapboard, an upper air cylinder 1, a pump body clapboard, a lower air cylinder 1, a lower flange clapboard, a lower flange, a roller 5, a sliding sheet and a crankshaft 4. The method is characterized in that:
the pump body component is not only suitable for a double-cylinder compressor, but also suitable for a multi-cylinder compressor and a single-cylinder compressor with special requirements.
The pump body assembly is located inside the casing 71, the motor rotor 92 is nested on the crankshaft 4 of the pump body assembly, and the motor stator 91 is nested inside the casing 71 and aligned opposite to the motor rotor 92. The upper cover assembly 72 and the lower cover assembly 73 are respectively located at the upper end and the lower end of the shell 71 to form a sealed cavity of the compressor body.
According to an embodiment of the application, an air conditioner is provided, which comprises a compressor, wherein the compressor is the compressor.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be regarded as the protection scope of the present application.

Claims (11)

1. A pump body assembly, comprising: a flange part (2) and a cylinder (1); the cylinder (1) is provided with a compression cavity; the flange part (2) comprises a flange end part; the end part of the flange is provided with a cavity; the position of the cavity corresponds to the position of the compression cavity.
2. The pump block assembly according to claim 1, characterized in that the end face of the flange end close to the cylinder (1) is provided with a groove; the recess forms the cavity.
3. The pump body assembly according to claim 2, characterized in that it further comprises a partition (3); the separating part (3) is arranged between the flange part (2) and the cylinder (1) and separates the groove from the cylinder (1).
4. The pump body assembly of claim 3, wherein the compression cavity includes a suction side and a discharge side; the partition part (3) is provided with a through hole; the through hole is communicated with the exhaust side of the compression cavity and the groove.
5. The pump body assembly according to claim 4, characterized in that said flange portion (2) is provided with a flange vent hole; the flange exhaust hole is communicated with the groove; the position of the flange exhaust hole corresponds to the position of the suction side of the compression cavity.
6. The pump block assembly according to claim 3, characterized in that it further comprises a crankshaft (4); the flange part (2) is provided with a flange shaft hole; the partition part (3) is provided with a partition part shaft hole; the crankshaft (4) is arranged in the flange shaft hole and the partition part shaft hole; the cross-sectional diameter of the partition (3) is C; the diameter of the cross section of the flange shaft hole is A; wherein A is less than or equal to C;
and/or the maximum cross-sectional diameter of the cavity is B; the inner diameter of the compression cavity is D; wherein B is less than or equal to D;
and/or, the pump body assembly further comprises a roller (5); the roller (5) is arranged in the cylinder (1); the crankshaft (4) comprises an eccentric portion (41); the roller (5) is sleeved outside the eccentric part (41); the outer diameter of the roller (5) is L; the eccentric amount of the eccentric part (41) is P; wherein, L-2P-C is more than or equal to 6.
7. The pump body assembly of claim 6, further comprising a fastener; the fixing piece comprises a screw hole and a screw; the screw holes comprise flange screw holes (21), separating screw holes (31) and cylinder (1) screw holes; the flange screw hole (21) is arranged on the flange part (2); the partition screw hole (31) is provided on the partition portion (3); the air cylinder (1) is arranged on the air cylinder (1) through a screw hole; the screws penetrate through the flange screw holes (21), the partition screw holes (31) and the cylinder (1) screw holes to fix the flange part (2), the partition part (3) and the cylinder (1).
8. The pump body assembly of claim 7, wherein the number of the fixing members is provided in plurality; a plurality of the fixing pieces are arranged circumferentially around a central axis of the crankshaft (4); the distance between two adjacent fixing pieces corresponds to the shape of the cavity;
and/or the distance between each fixing piece and the central axis of the crankshaft (4) is equal.
9. The pump body assembly of claim 3, wherein the cavity is a noise reduction cavity;
and/or the partition (3) is a partition.
10. A compressor comprising a pump block assembly, characterized in that it is a pump block assembly according to any one of claims 1 to 9.
11. An air conditioner comprising a compressor, wherein the compressor is the compressor of claim 10.
CN202011496154.6A 2020-12-17 2020-12-17 Pump body assembly, compressor and air conditioner with same Active CN112610489B (en)

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CN112610489B CN112610489B (en) 2022-09-23

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009041382A (en) * 2007-08-07 2009-02-26 Toshiba Carrier Corp Rotary compressor and refrigerating cycle device using the same
CN202971192U (en) * 2012-11-22 2013-06-05 珠海格力节能环保制冷技术研究中心有限公司 Compressor pump body and compressor
CN205207185U (en) * 2015-11-18 2016-05-04 珠海格力节能环保制冷技术研究中心有限公司 Compressor pump body subassembly and compressor
CN110439815A (en) * 2019-09-03 2019-11-12 郑州凌达压缩机有限公司 Pump body assembly and compressor comprising same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009041382A (en) * 2007-08-07 2009-02-26 Toshiba Carrier Corp Rotary compressor and refrigerating cycle device using the same
CN202971192U (en) * 2012-11-22 2013-06-05 珠海格力节能环保制冷技术研究中心有限公司 Compressor pump body and compressor
CN205207185U (en) * 2015-11-18 2016-05-04 珠海格力节能环保制冷技术研究中心有限公司 Compressor pump body subassembly and compressor
CN110439815A (en) * 2019-09-03 2019-11-12 郑州凌达压缩机有限公司 Pump body assembly and compressor comprising same

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