CN212803587U

CN212803587U - Flexible connection direct air suction novel rotor compressor

Info

Publication number: CN212803587U
Application number: CN202021239612.3U
Authority: CN
Inventors: 戴竟雄; 李华军; 梁满仓; 王永昌; 顾少成
Original assignee: Huangshi Dongbei Electrical Appliance Co Ltd
Current assignee: Huangshi Donper Compressor Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-26
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a flexible connection directly aspirated novel rotor compressor, which comprises a casing, wherein a pump body is arranged in the casing through a plurality of elastic support pieces, the pump body comprises a cylinder component, a crankshaft is sleeved on the cylinder component, and a motor is sleeved above the crankshaft; the pump body also comprises a swinging or sliding rotor arranged in the cylinder component, and the rotor is sleeved with the crankshaft; the rotor is connected with the cylinder assembly through a sliding sheet, and the rotor and the sliding sheet divide an inner cavity of the cylinder assembly into a low-pressure cavity and a high-pressure cavity; the low-pressure cavity is connected with an air suction and silencing cavity through an air inlet channel, and the air suction and silencing cavity is connected with an air suction pipe of the shell through an air suction flexible connecting pipe; the high-pressure cavity is connected to an exhaust silencing cavity through an exhaust channel, and the exhaust silencing cavity is communicated with the inner cavity of the shell; the compressor has the advantages of small vibration, low noise and excellent refrigeration and starting performance.

Description

Flexible connection direct air suction novel rotor compressor

Technical Field

The utility model relates to the refrigerant compressor technical field, concretely relates to novel rotor compressor that flexible coupling is direct inspiratory.

Background

The compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas, and is the heart of a refrigeration system. The refrigerating cycle is powered by sucking low-temperature and low-pressure refrigerant gas from the air suction pipe, driving the piston to compress the refrigerant gas through the operation of the motor, and discharging high-temperature and high-pressure refrigerant gas to the exhaust pipe.

All parts on the fully-sealed compressor are in rigid contact usually, metal materials are used for the parts including air suction and exhaust pipe fittings, various pipe joints and the like, and the compressor can generate severe vibration and the rigidly connected parts can directly bear the vibration along with the increase of the service life of the compressor or the long-time full-load work, so that larger noise can be generated.

For example, the main bearing or cylinder body of the existing fully-sealed rotor compressor is rigidly connected with the stator of the motor and the fully-sealed casing, and the compressor has no vibration reduction buffer structure and larger vibration noise. Since vibration noise is large, a rotary compressor is generally used for an air conditioner and commercial refrigeration. For use in a domestic refrigerator, the existing structure must be changed.

As disclosed in chinese invention patent (publication No. CN107461338B) in 2020, a compressor comprises: the compressor comprises a compressor body and a flexible connecting assembly, wherein the compressor body comprises an inner shell, an outer shell and at least one pump body component, the pump body component is positioned in the inner shell, the inner shell is positioned in the outer shell, the flexible connecting assembly comprises an air suction pipe and a flexible connecting piece, the air suction pipe penetrates through the inner shell and the outer shell to be connected with the pump body component, and the air suction pipe is connected to the outer shell and/or the inner shell through the flexible connecting; this compressor passes through flexonics's mode, reduces the noise of compressor, but its flexible connectors part is more, and the installation is complicated, and the suction pipe lug connection pump body between the two does not have the amortization measure moreover, and the direct connection structure is limited by the compressor model, is unsuitable for the use of full-sealed rotor compressor.

Disclosure of Invention

The utility model aims at providing a flexible connection directly inspiratory novel rotor compressor to the problem that prior art exists.

In order to achieve the above object, the utility model adopts the following technical scheme:

a novel rotor compressor capable of flexibly connecting and directly sucking air comprises a shell, wherein a pump body is arranged in the shell and comprises a cylinder assembly, a crankshaft is sleeved on the cylinder assembly, and a motor is sleeved above the crankshaft; the pump body also comprises a rotor arranged in the cylinder assembly, and the rotor is sleeved with the crankshaft; the rotor is connected with the cylinder assembly through a sliding sheet, and the rotor and the sliding sheet divide an inner cavity of the cylinder assembly into a low-pressure cavity and a high-pressure cavity; the low-pressure cavity is connected with an air suction and silencing cavity through an air inlet channel, and the air suction and silencing cavity is connected with an air suction pipe of the shell through an air suction flexible connecting pipe; the exhaust cavity of the cylinder component (a part of the inner cavity of the cylinder component) is connected to an exhaust silencing cavity through an exhaust passage (on the cylinder component), the exhaust silencing cavity is communicated with an internal high-pressure cavity of the shell (the inner cavity of the shell is in a high-pressure state during exhaust), and the internal high-pressure cavity of the shell is connected with the outside through a shell exhaust pipe on the shell to form a complete exhaust passage; the pump body (core) is connected with the casing through an elastic supporting piece.

According to the compressor, the pump body formed by the cylinder assembly, the crankshaft, the rotor, the motor and the like is arranged on the elastic supporting piece, so that noise vibration is prevented from being directly transmitted to the shell, and the noise vibration is reduced; the air suction flexible connecting pipe and the flexible connection are adopted, so that the shell is completely flexibly connected with the pump body, and meanwhile, the air suction silencing cavity is arranged between the air suction flexible connecting pipe and the air cylinder assembly, so that the noise generated by air suction pulsation is eliminated; and still set up at the exhaust end the exhaust amortization chamber has solved rotor compressor vibration, the big problem of noise, and the refrigeration volume is high simultaneously, and the startability is excellent.

Compared with a piston compressor with the same displacement, the compressor adopting the structural arrangement has the advantages that the cold quantity is obviously increased; the noise and vibration of the compressor are less than those of the existing rotor compressor, and the noise of the compressor is much less than that of a piston compressor with the same displacement.

The air cylinder assembly is connected with the shell air suction pipe through the air suction silencing cavity and the air suction flexible connecting pipe, air can be directly sucked from the outside of the shell, and air entering the air cylinder assembly is stable and orderly through noise reduction and silencing of the flexible pipe and the air suction silencing cavity, and air suction noise is obviously reduced; the high-pressure gas is directly discharged into the shell after being subjected to noise reduction through the exhaust silencing cavity, no obvious noise is generated, and the high-pressure gas is discharged out of the shell through an exhaust pipe of the shell on the shell; the process is opposite to the idea that the existing compressor is provided with an exhaust pipe without an air suction pipe, and the external low-temperature refrigerant gas is directly sucked into the air cylinder assembly, so that the heat exchange in the shell is avoided, and the good refrigeration effect is ensured.

By adopting the arrangement of the air suction flexible connecting pipe, the shape of the pipe body is changeable, and the pipe body can be easily arranged into various bent and arc shapes, so that the arrangement of the coil cloth is facilitated, and the narrow space in the shell of the compressor is fully utilized; and the air suction flexible connecting pipe passes through a longer transmission path from the air suction pipe of the shell to the air suction and sound attenuation cavity, so that the air can be fully buffered and absorbed by vibration when being sucked, and the air noise is obviously reduced.

Furthermore, the air suction silencing cavity is arranged at one side close to the air suction pipe of the shell, and the air suction silencing cavity is arranged at the side edge of the air cylinder assembly; the air suction and sound attenuation cavity is provided with a cavity body in clamping connection, and a sound attenuation cavity air inlet pipe and a sound attenuation cavity air outlet pipe are arranged in the cavity body; the silencing cavity air inlet pipe is arranged on the side edge of the cavity, one end of the silencing cavity air inlet pipe is flexibly connected with the air suction flexible connecting pipe, and the other end of the silencing cavity air inlet pipe extends into the cavity; the air outlet pipe of the silencing cavity is bent, one end of the air outlet pipe is inserted into and connected with the air inlet channel, and the other end of the air outlet pipe is bent and extends to the middle upper part of the cavity.

The air suction and noise reduction cavity adopting the structure has the advantages of simple structure, easy installation, no occupation of more space and capability of ensuring the effects of noise reduction and noise reduction; the gas turns around in the air suction and silencing cavity, is buffered and then enters the cylinder assembly, so that the gas is more smooth and uniform, and the air suction and exhaust can not generate sharp noise instantly.

Further, the inner contour surface or the outer contour surface of the cavity of the air suction and sound attenuation cavity is provided with or coated with heat insulation materials, such as PBT, high-temperature nylon and polyether ether ketone; the air outlet pipe of the silencing cavity is provided with a horizontal insertion part and a vertical air suction part, the horizontal insertion part is inserted into the air inlet channel, and the vertical air suction part is provided with an inner pipe structure and is arranged in a variable inner diameter mode. The arrangement of the variable inner diameter further improves the effects of noise reduction and noise reduction; the heat insulating material can prevent low-temperature gas in the air suction and sound attenuation cavity from generating obvious heat exchange with high-pressure and high-temperature environment in the shell so as to avoid influencing the refrigeration effect.

Further, the cylinder assembly comprises a cylinder body, an upper cylinder cover and a lower cylinder cover which are connected with each other, and the cylinder body, the upper cylinder cover and the lower cylinder cover enclose to form the inner cavity; the cylinder body is provided with a horizontal air inlet channel, a through groove is vertically penetrated through the cylinder body on one side of the air inlet channel, the horizontal section of the through groove is in a gourd shape, and a swinging sliding vane is arranged in the through groove on one side close to the inner cavity; the rotor is arranged in the inner cavity, one end of the sliding sheet is fixedly connected with the rotor, and the other end of the sliding sheet penetrates through the swinging sliding sheet and extends into the through groove.

The rotor and the sliding sheet are arranged and are in close contact with each other, namely surface contact, body contact or integration, the leakage amount is small, and the friction between the rotor and the sliding sheet is small or even zero; mechanical abrasion can be greatly reduced, and compression loss of the refrigerant is effectively reduced in a smooth and continuous compression mode through the bilaterally symmetrical double compression bins, so that higher energy efficiency is obtained.

Furthermore, the upper cylinder cover and the lower cylinder cover are respectively screwed on the upper side and the lower side of the cylinder body, and the upper end surface and the lower end surface of the rotor and the sliding sheet are respectively in sealing contact with oil of the upper cylinder cover and the lower cylinder cover; the total length of the sliding sheet is slightly larger than the horizontal length of the through groove.

Through the mode that fluid is sealed, can guarantee the rotor with form the seal end face between gleitbretter and last cylinder cap and the lower cylinder cap, reduce the mutual leakage in high-low pressure district, promote the compression effect.

Furthermore, a clamping groove is axially arranged on the outer circumference of the rotor, and the radial section of the clamping groove is I-shaped; the end part of the sliding piece is symmetrically provided with grooves at two sides, the grooves are matched with the clamping grooves, and the end part of the sliding piece is clamped in the clamping grooves.

Through the connection of the structure, the rotor and the sliding sheet can be conveniently and independently processed and formed, the assembly is simple, and the connection strength and stability can be ensured; under the restriction of upper cylinder cap and lower cylinder cap the gleitbretter reaches the rotor can not relative movement and rock, the gleitbretter can wind it rotates and follows to sway the gleitbretter and remove to cooperate the rotor realizes the compression in the intracavity eccentric motion.

Further, the lower end of the crankshaft penetrates through the upper cylinder cover and is connected with the cylinder assembly in a matched mode; the upper cylinder cover is provided with the exhaust silencing cavity, and the upper cylinder cover is provided with the exhaust channel communicated with the exhaust silencing cavity.

The upper cylinder cover is directly provided with the exhaust silencing cavity, so that the silencing and shock absorption can be directly carried out on the gas exhausted from the cylinder assembly, and the treated gas can be directly exhausted into the shell without generating obvious noise; the space occupation of the exhaust silencing cavity arranged in the shell is reduced, and the volume of the compressor can be reduced; the exhaust silencing cavity can be a plurality of cavities, and can also be matched with an exhaust buffer cavity for use.

Furthermore, the air suction flexible connecting pipe is a flexible pipe, and two ends of the air suction flexible connecting pipe are respectively and flexibly connected with a first pipe joint assembly and a second pipe joint assembly; the air suction flexible connecting pipe is coiled and distributed in the shell in a serpentine shape; the first pipe joint assembly is flexibly connected with the shell air suction pipe, and the second pipe joint assembly is flexibly connected with the air suction and sound attenuation cavity.

Further, the first pipe joint assembly comprises a first pipe joint and a first fastening piece; the first pipe joint is provided with a first clamping part, a first buffering part and a second clamping part which are integrally formed, the first clamping part is sleeved with the shell air suction pipe, the second clamping part is sleeved with the air suction flexible connecting pipe, and the first fastening piece is clamped on the air suction flexible connecting pipe and the first buffering part and abuts against the first clamping part; the second pipe joint assembly is provided with a first connecting end and a second connecting end which are in a gourd shape, the first connecting end and the second connecting end are communicated, the first connecting end is sleeved with the air suction flexible connecting pipe, and the second connecting end is connected with the air suction silencing cavity.

The first pipe joint adopting the structure can be firmly connected with the shell air suction pipe and the flexible pipe, has good sealing performance, and can buffer air when passing through the first buffer part; the diameter of an inner hole of the first clamping part is slightly smaller than the outer diameter of the air suction pipe of the shell, so that the purpose of interference fit is achieved; the first pipe joint is also made of flexible materials, so that the first pipe joint has elastic deformation capacity and can tightly wrap the shell air suction pipe. When the flexible pipe is sleeved on the gourd-shaped first connecting end, the pipe orifice of the flexible pipe can be tightly attached to the inclined part under the action of air flow (air flow direction), and the flexible pipe tends to be increasingly tight without being sleeved with other fastening components.

Further, a shell exhaust pipe is arranged on the same side of the shell as the shell air suction pipe, and a process pipe is arranged on the other side of the shell; the elastic support piece comprises an inner support pin arranged on the inner side bottom plate of the machine shell, a pressure spring support block is sleeved on the inner support pin, a pressure spring or a tension spring is arranged on the pressure spring support block, and the other end of the pressure spring or the tension spring is also abutted to the cylinder assembly through the pressure spring support block.

Through the application of elastic support elements such as a pressure spring support block and a pressure spring, the pump body can be isolated from the rigid contact of the casing, the rigid collision is reduced, and the effects of damping, buffering and noise reduction are better.

Compared with the prior art, the beneficial effects of the utility model are that: 1. according to the compressor, the pump body formed by the cylinder assembly, the crankshaft, the rotor, the motor and the like is arranged on the elastic supporting piece, so that noise vibration is prevented from being directly transmitted to the shell, and the noise vibration is reduced; 2. the air suction flexible connecting pipe and the flexible connection are adopted, so that the shell is completely flexibly connected with the pump body, and meanwhile, the air suction silencing cavity is arranged between the air suction flexible connecting pipe and the air cylinder assembly, so that the noise generated by air suction pulsation is eliminated; 3. the exhaust silencing cavity is arranged at the exhaust end, so that the problems of vibration and high noise of the rotor compressor are solved, and meanwhile, the refrigerating capacity is high and the starting performance is excellent; 4. compared with a piston compressor with the same displacement, the compressor adopting the structural arrangement has the advantages that the cold quantity is obviously increased; the noise and the vibration are less than those of the existing rotor compressor, and the noise is much less than that of a piston compressor with the same displacement; 5. the compressor forms a direct air suction structure, which is beneficial to controlling noise and increasing refrigerating capacity; the arrangement of the cylinder cover is simplified, so that the structure of the pump body is simpler; 6. the rotor and the sliding sheet are arranged and are in close contact with each other, so that the leakage amount is small, the friction between the rotor and the sliding sheet is small or even zero, and the mechanical abrasion can be greatly reduced; the compression loss of the refrigerant is effectively reduced in a smooth and continuous compression mode, so that higher energy efficiency is obtained.

Drawings

Fig. 1 is a schematic view of a top view (half section) structure of a novel flexible connection direct suction rotor compressor of the present invention;

FIG. 2 is a schematic view of the structure A-A of the novel rotor compressor with flexible connection and direct suction;

FIG. 3 is a schematic view of a side view semi-section structure of a novel rotor compressor with flexible connection for direct suction of air according to the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the air suction flexible connection tube and the lower part of the casing of the novel rotor compressor with flexible connection and direct air suction of the present invention;

FIG. 5 is a schematic view of the rotor and the sliding vane structure of a flexible connection direct suction new type rotor compressor of the present invention;

FIG. 6 is an enlarged view of the rotor and sliding vane connection structure of the flexible connection direct suction new type rotor compressor of the present invention;

FIG. 7 is a schematic view of the connection structure between the cylinder block and the suction muffler chamber of the flexible connection direct suction new type rotor compressor of the present invention;

FIG. 8 is a schematic half-sectional view of a connection structure between a cylinder block and a suction muffler chamber of a flexible connection direct suction new type rotor compressor according to the present invention;

FIG. 9 is a schematic view of the connection structure between the flexible connection pipe and the suction silencing chamber of the flexible connection direct suction new type rotor compressor of the present invention;

fig. 10 is a schematic structural view of the first coupling assembly of fig. 9;

fig. 11 is a schematic structural view of the second coupling assembly of fig. 9;

in the figure: 1. a housing; 2. an elastic support member; 201. an inner support pin; 202. a pressure spring supporting block; 203. a pressure spring; 3. a cylinder assembly; 301. a cylinder block; 302. an upper cylinder cover; 303. a lower cylinder cover; 4. a crankshaft; 5. a motor; 6. a rotor; 601. a clamping groove; 7. sliding blades; 701. a groove; 8. an air intake passage; 9. an air suction silencing cavity; 901. a horizontal insertion portion; 902. a vertical air suction part; 903. a thermal insulation material; 10. a flexible air suction connecting pipe; 11. an exhaust silencing cavity; 12. a shell air suction pipe; 13. A housing exhaust pipe; 14. a process tube; 15. a first pipe joint assembly; 1501. a first engaging portion; 1502. a first buffer section; 1503. a second engaging portion; 1504. necking down; 1505. a first fastener; 16. a second pipe joint assembly; 1601. a second connection end; 1602. a first connection end; 1603. a second buffer section; 1604. a vertical portion; 1605. an inclined portion; 17. a through groove; 18. and swinging the sliding sheet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The first embodiment is as follows:

as shown in fig. 1 to 6, a novel rotor compressor capable of flexibly connecting and directly sucking air comprises a casing 1, wherein a pump body is installed inside the casing 1 through a plurality of elastic support members 2, the pump body comprises a cylinder assembly 3, a crankshaft 4 is sleeved on the cylinder assembly 3, and a motor 5 is sleeved above the crankshaft 4; the pump body further comprises a rotor 6 (a swing rotor in the embodiment) arranged in the cylinder assembly 3, and the rotor 6 is sleeved with the crankshaft 4; the rotor 6 is connected with the cylinder assembly 3 through a sliding sheet 7 (see fig. 5), and the rotor 6 and the sliding sheet 7 divide an inner cavity of the cylinder assembly 3 into a low-pressure cavity and a high-pressure cavity; the low-pressure cavity is connected with an air suction and sound deadening cavity 9 through an air inlet channel 8, and the air suction and sound deadening cavity 9 is connected with an air suction pipe 12 of the shell through an air suction flexible connecting pipe 10; the high-pressure cavity is connected to an exhaust silencing cavity 11 through an exhaust channel, and the exhaust silencing cavity 11 is communicated with the inner cavity of the machine shell 1.

According to the compressor, the pump body formed by the cylinder assembly 3, the crankshaft 4, the rotor 6, the motor 5 and the like is arranged on the elastic support piece 2, so that noise vibration is prevented from being directly transmitted to the shell 1, and the noise vibration is reduced; the air suction flexible connecting pipe 10 and the flexible connection are adopted, so that the shell 1 and the pump body are completely in flexible connection, and meanwhile, the air suction silencing cavity 9 is arranged between the air suction flexible connecting pipe 10 and the air cylinder assembly 3, so that the noise generated by air suction pulsation is eliminated; and still set up at the exhaust end exhaust amortization chamber 11, solved rotor compressor vibration, the big problem of noise, the refrigeration volume is high simultaneously, and the startability is excellent.

The cylinder assembly 3 is connected with the shell air suction pipe 12 through the air suction and sound deadening cavity 9 and the air suction flexible connecting pipe 10, air can be directly sucked from the outside of the shell 1, and air entering the cylinder assembly 3 is stable and orderly through noise reduction and deadening of the air suction and sound deadening flexible connecting pipe 10 and the air suction and sound deadening cavity 9, and air suction noise is obviously reduced; the high-pressure gas is directly discharged into the machine shell 1 after being subjected to noise reduction through the exhaust and noise reduction cavity 11, no obvious noise is generated, and then the high-pressure gas is discharged out of the machine shell through an exhaust pipe of the upper shell of the machine shell 1; this process sets up the thinking that the blast pipe does not establish the breathing pipe with current compressor, forms the effect of directly breathing in, with the direct suction cylinder subassembly of outside microthermal refrigerant gas, avoids in the casing heat exchange, has ensured good refrigeration effect.

By adopting the arrangement of the air suction flexible connecting pipe 10, the shape of the pipe body is changeable, and the pipe body can be easily arranged into various bent and arc shapes, so that the arrangement of the coil cloth is facilitated, and the narrow space in the shell of the compressor is fully utilized; and the air suction flexible connecting pipe 10 passes through a long (relative to the inner perimeter of the shell) transmission path between the shell air suction pipe 12 and the air suction sound attenuation cavity 9, so that the air can be fully buffered and absorbed by vibration when being sucked, and the air noise is obviously reduced.

Further, the air suction and sound deadening cavity 9 is arranged at one side close to the air suction pipe 12 of the shell, and the air suction and sound deadening cavity 9 is arranged at the side of the cylinder assembly 3.

Further, as shown in fig. 2 and 5, the cylinder assembly 3 includes a cylinder block 301, an upper cylinder cover 302, and a lower cylinder cover 303 connected to each other, and the cylinder block 301, the upper cylinder cover 302, and the lower cylinder cover 303 surround to form the inner cavity; the cylinder block is provided with the horizontal air inlet channel 8, a through groove 17 is vertically penetrated through the cylinder block 301 on one side of the air inlet channel 8, the horizontal section of the through groove 17 is in a gourd shape, and a swinging slide sheet 18 is arranged in the through groove 17 on one side close to the inner cavity; the rotor 6 is arranged in the inner cavity, one end of the sliding sheet 7 is fixedly connected with the rotor 6, and the other end of the sliding sheet passes through the swinging sliding sheet 18 and extends into the through groove 17.

The rotor 6 and the sliding sheet 7 are arranged, the rotor and the sliding sheet are in close surface contact, the leakage amount is small, and the friction between the rotor and the sliding sheet is small or even zero; mechanical abrasion can be greatly reduced, and compression loss of the refrigerant is effectively reduced in a smooth and continuous compression mode through the compression bins on the left side and the right side, so that higher energy efficiency is obtained.

Further, the upper cylinder cover 302 and the lower cylinder cover 303 are respectively screwed on the upper side and the lower side of the cylinder block 301, and the upper end surface and the lower end surface of the rotor 6 and the sliding sheet 7 are respectively in oil-liquid sealing contact with the upper cylinder cover 302 and the lower cylinder cover 303; the length of the sliding sheet 7 is slightly larger than the horizontal length of the through slot 17.

Through the mode that fluid is sealed, can guarantee rotor 6 with form the seal end face between gleitbretter 7 and upper cylinder cover 302 and the lower cylinder cover 303, reduce the mutual leakage in high-low pressure district, promote the compression effect.

Further, as shown in fig. 6, an engaging groove 601 is axially formed in an outer circumference of the rotor 6, and a radial cross section of the engaging groove 601 is i-shaped; the two sides of the end of the sliding sheet 7 are symmetrically provided with grooves 701, the grooves 701 are matched with the clamping grooves 601, and the end of the sliding sheet 7 is clamped in the clamping grooves 601.

Through the connection of the structure, the rotor 6 and the sliding sheet 7 are convenient to independently machine and form, the assembly is simple, and the connection strength and stability can be ensured; under the restriction of upper cylinder cover 302 and lower cylinder cover 303 slip sheet 7 with rotor 6 can not relative movement and rock, slip sheet 7 can wind the slip sheet that sways rotates and follows logical groove 17 removes to cooperate rotor 6 realizes the compression in the inner chamber eccentric motion.

Further, the upper cylinder cover 302 is arranged above the cylinder assembly 3; the upper portion of the upper cylinder cover 302 is provided with the exhaust silencing cavity 11, and the upper cylinder cover 302 is provided with an exhaust passage communicated with the exhaust silencing cavity 11.

The exhaust silencing cavity 11 is directly arranged on the upper cylinder cover 302, so that the gas exhausted from the cylinder assembly 3 can be directly silenced and damped, and the treated gas can be directly exhausted into the machine shell 1 without generating obvious noise; the space occupation of the exhaust silencing cavity arranged in the shell 1 is reduced, and the volume of the compressor can be reduced; the exhaust silencing cavity 11 can be a plurality of cavities, and can also be matched with an exhaust buffer cavity for use.

Further, a shell exhaust pipe 13 is arranged on the same side of the shell 1 as the shell air suction pipe 12, and a process pipe 14 is arranged on the other side; as shown in fig. 3, the elastic support 2 includes an inner support pin 201 disposed on the inner bottom plate of the housing 1, a compressed spring support block 202 is sleeved on the inner support pin 201, a compressed spring 203 is disposed on the compressed spring support block 202, and the other end of the compressed spring 203 is also abutted to the cylinder assembly 3 through the compressed spring support block 202.

Through the application of elastic support elements such as the pressure spring supporting block 202, the pressure spring 203 and the like, the rigid contact of the pump body and the machine shell can be isolated, the rigid collision is reduced, and the effects of shock absorption, buffering and noise reduction are good. The compression spring 203 is a variable pitch spring.

Example two:

the difference between the present embodiment and the first embodiment is that a structure and a connection mode of the air suction and sound deadening cavity are provided.

Specifically, as shown in fig. 7 and 8, the air suction and sound deadening cavity 9 has a cavity body in snap connection, and a sound deadening cavity air inlet pipe (integrated with the second pipe joint assembly 16) and a sound deadening cavity air outlet pipe are arranged in the cavity body; the silencing cavity air inlet pipe is arranged on the side edge of the cavity, one end of the silencing cavity air inlet pipe is flexibly connected with the air suction flexible connecting pipe 10, and the other end of the silencing cavity air inlet pipe extends into the cavity; the air outlet pipe of the silencing cavity is bent, one end of the air outlet pipe is inserted into and connected with the air inlet channel 8, and the other end of the air outlet pipe is bent and extends to the middle upper part of the cavity.

The air suction and noise reduction cavity 9 adopting the structure has simple structure, is easy to install, does not occupy more space, and can ensure the effects of noise reduction and noise reduction; the gas turns around in the air suction and silencing cavity, is buffered and then enters the cylinder assembly, so that the gas is more smooth and uniform, and the air suction and exhaust can not generate sharp noise instantly.

Further, the inner contour surface of the air suction and sound attenuation cavity 9 is covered with a heat insulating material 903, such as polyetheretherketone; the silencing cavity air outlet pipe is provided with a horizontal insertion part 901 and a vertical air suction part 902, wherein the horizontal insertion part 901 is inserted into the air inlet channel 8, and the vertical air suction part 902 is provided with an inner pipe structure and has a variable inner diameter. The arrangement of the variable inner diameter further improves the effects of noise reduction and noise reduction; the heat insulating material 903 can reduce the obvious heat exchange between the low-temperature gas in the air suction and sound attenuation cavity and the high-pressure and high-temperature environment in the machine shell so as to avoid influencing the refrigeration effect.

Example three:

the present embodiment is different from the first embodiment in that a structure and a connection manner of the flexible air suction connection pipe are provided.

Specifically, as shown in fig. 9 to 11, the air suction flexible connection pipe 10 is a flexible pipe, and two ends of the air suction flexible connection pipe 10 are respectively and flexibly connected with a first pipe joint assembly 15 and a second pipe joint assembly 16; the air suction flexible connecting pipe 10 is distributed in the shell 1 in a winding manner with fluctuating height; the first pipe joint assembly 15 is flexibly connected with the shell air suction pipe 12, and the second pipe joint assembly 16 is flexibly connected with the air suction and sound attenuation cavity 9.

Further, the first pipe joint assembly 15 includes a first pipe joint and a first fastener 1505; the first pipe joint is provided with a first clamping part 1501, a first buffer part 1502 and a second clamping part 1503 which are integrally formed, the first clamping part 1501 is sleeved with the shell air suction pipe 12, the second clamping part 1503 is sleeved with the air suction flexible connecting pipe 10, and the first fastener 1505 is clamped on the air suction flexible connecting pipe 10 and the first buffer part 1502 and abuts against the first clamping part 1501; the second pipe joint assembly 16 has a first connecting end 1602 and a second connecting end 1601 which are gourd-shaped, the first connecting end 1602 and the second connecting end 1601 are communicated with each other to form a second buffering portion 1603, the first connecting end 1602 is sleeved with the air suction flexible connecting pipe 10, and the second connecting end 1601 is directly inserted into the air suction silencing cavity.

The first pipe joint adopting the structure can be firmly connected with the shell air suction pipe 12 and the air suction flexible connecting pipe 10, has good sealing performance, and can buffer air when passing through the first buffer part 1502; the diameter of the inner hole of the first clamping part 1501 is slightly smaller than the outer diameter of the casing air suction pipe 12, so that the purpose of interference fit is achieved; because the first pipe joint is also made of flexible materials, the first pipe joint has elastic deformation capacity and can tightly wrap the shell air suction pipe 12.

When the flexible air suction connecting pipe 10 is sleeved on the gourd-shaped first connecting end 1602, the pipe orifice of the flexible air suction connecting pipe 10 can be tightly attached to the inclined part 1605 under the action of air flow (air flow direction), and the flexible air suction connecting pipe tends to be increasingly tight, so that other fastening components do not need to be sleeved; the outer diameter of the vertical part 1604 is smaller than the inner diameter of the air suction flexible connecting pipe 10, which facilitates the butt joint of the pipe orifices. The flexible materials are engineering plastics, rubber and the like.

Further, a central axis of the first connecting end 1602 and a central axis of the second connecting end 1601 are vertically arranged; the intersection of the first connection end 1602 and the second connection end 1601 forms a second buffer portion.

The first connecting end 1602 and the second connecting end 1601 which are perpendicular to each other can horizontally introduce the vertically downward airflow into the air suction and sound deadening chamber 9; the second buffer 1603 also serves to buffer the gas and reduce the gas noise.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel rotor compressor capable of flexibly connecting and directly sucking air comprises a shell, wherein a pump body is arranged in the shell and comprises a cylinder assembly, a crankshaft is sleeved on the cylinder assembly, and a motor is sleeved above the crankshaft; the pump body is characterized by further comprising a swinging or sliding rotor arranged in the cylinder assembly, and the rotor is sleeved with the crankshaft; the rotor is connected with the cylinder assembly through a sliding sheet, and the rotor and the sliding sheet divide an inner cavity of the cylinder assembly into a low-pressure cavity and a high-pressure cavity; the low-pressure cavity is connected with an air suction and silencing cavity through an air inlet channel, and the air suction and silencing cavity is connected with an air suction pipe of the shell through an air suction flexible connecting pipe; the exhaust cavity of the cylinder component is connected to an exhaust silencing cavity through an exhaust channel, the exhaust silencing cavity is communicated with the internal high-pressure cavity of the shell, and the internal high-pressure cavity of the shell is connected with the outside through a shell exhaust pipe on the shell; the pump body is connected with the casing through an elastic supporting piece.

2. The flexible connection direct suction novel rotor compressor according to claim 1, wherein the suction muffler chamber is provided near one side of the casing suction pipe, and the suction muffler chamber is installed at the side of the cylinder assembly; the air suction and sound attenuation cavity is provided with a cavity body in clamping connection, and a sound attenuation cavity air inlet pipe and a sound attenuation cavity air outlet pipe are arranged in the cavity body; the silencing cavity air inlet pipe is arranged on the side edge of the cavity, one end of the silencing cavity air inlet pipe is flexibly connected with the air suction flexible connecting pipe, and the other end of the silencing cavity air inlet pipe extends into the cavity; the air outlet pipe of the silencing cavity is bent, one end of the air outlet pipe is inserted into and connected with the air inlet channel, and the other end of the air outlet pipe is bent and extends to the middle upper part of the cavity.

3. The flexible connection direct suction novel rotor compressor as claimed in claim 2, wherein the inner contour surface or the outer contour surface of the suction noise reduction cavity is provided with or coated with a heat insulating material; the air outlet pipe of the silencing cavity is provided with a horizontal insertion part and a vertical air suction part, the horizontal insertion part is inserted into the air inlet channel, and the vertical air suction part is provided with an inner pipe structure and is arranged in a variable inner diameter mode.

4. The flexible connection direct suction novel rotor compressor as claimed in claim 1, wherein the outer circumference of the rotor is axially provided with a snap groove, the radial section of the snap groove is i-shaped; the end part of the sliding piece is symmetrically provided with grooves at two sides, the grooves are matched with the clamping grooves, and the end part of the sliding piece is clamped in the clamping grooves.

5. The novel flexible connection direct suction rotor compressor as claimed in claim 1, wherein an upper cylinder cover is arranged above the cylinder assembly, and the lower end of the crankshaft passes through the upper cylinder cover and is in fit connection with the cylinder assembly; the upper cylinder cover is provided with the exhaust silencing cavity, and the upper cylinder cover is provided with the exhaust channel communicated with the exhaust silencing cavity.

6. The novel rotor compressor for flexible connection direct suction according to claim 1, wherein the flexible connection pipe for suction is a flexible pipe, and a first pipe joint assembly and a second pipe joint assembly are flexibly connected to two ends of the flexible connection pipe for suction respectively; the air suction flexible connecting pipe is coiled and distributed in the shell in a serpentine shape; the first pipe joint assembly is flexibly connected with the shell air suction pipe, and the second pipe joint assembly is flexibly connected with the air suction and sound attenuation cavity.

7. The compressor as claimed in claim 6, wherein the first pipe joint assembly comprises a first pipe joint and a first fastening member; the first pipe joint is provided with a first clamping part, a first buffering part and a second clamping part which are integrally formed, the first clamping part is sleeved with the shell air suction pipe, the second clamping part is sleeved with the air suction flexible connecting pipe, and the first fastening piece is clamped on the air suction flexible connecting pipe and the first buffering part and abuts against the first clamping part; the second pipe joint assembly is provided with a first connecting end and a second connecting end which are in a gourd shape, the first connecting end and the second connecting end are communicated, the first connecting end is sleeved with the air suction flexible connecting pipe, and the second connecting end is connected with the air suction silencing cavity.

8. The compressor as claimed in claim 1, wherein the casing suction pipe and the casing discharge pipe are disposed on the same side of the casing, and the other side of the casing is provided with a process pipe.

9. The rotor compressor of claim 1, wherein the elastic supporting element includes an inner supporting pin disposed on the inner bottom plate of the casing, a compressed spring supporting block is sleeved on the inner supporting pin, a compressed spring or a tension spring is disposed on the compressed spring supporting block, and the other end of the compressed spring or the tension spring is also abutted to the cylinder assembly through the compressed spring supporting block.