CN111720326A

CN111720326A - Novel swing rotor compressor with low-pressure cavity in shell

Info

Publication number: CN111720326A
Application number: CN202010603449.2A
Authority: CN
Inventors: 杨百昌; 戴竟雄; 李华军; 王永昌; 梁满仓
Original assignee: Huangshi Dongbei Electrical Appliance Co Ltd
Current assignee: Huangshi Donper Compressor Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-09-29

Abstract

The invention discloses a novel swing rotor compressor with a low-pressure cavity in a shell, which comprises a shell and a pump body, wherein the pump body comprises a cylinder assembly, a crankshaft is sleeved on the cylinder assembly, and a motor is sleeved above the crankshaft; the pump body further comprises a swing rotor arranged in the cylinder assembly; the swing rotor is connected with the air cylinder assembly through a sliding sheet, and the swing rotor and the sliding sheet divide an inner cavity of the air cylinder assembly into a first compression chamber and a second compression chamber; the first compression chamber is connected with an air suction and noise reduction cavity through an air inlet channel; the second compression chamber is connected to an integrated exhaust cover assembly through an exhaust passage, and the exhaust cover assembly is connected with an exhaust pipe of the shell through an inner exhaust coil; the compressor has the advantages of small vibration, low noise, high refrigerating capacity and excellent starting performance.

Description

Novel swing rotor compressor with low-pressure cavity in shell

Technical Field

The invention relates to the technical field of compressors, in particular to a novel swing rotor compressor with a low-pressure cavity in a shell.

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 rotor 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.

And current rotor compressor directly inhales from the compressor outside, and high-pressure gas directly discharges into the casing, is high-pressure chamber and temperature higher in the casing, leads to cold volume to reduce.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a novel swing rotor compressor with a low-pressure cavity in a shell.

In order to achieve the purpose, the invention adopts the technical scheme that:

a novel swing rotor compressor with a low-pressure cavity in a shell 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 swing rotor arranged in the cylinder component, and the swing rotor is sleeved with the crankshaft; the swing rotor is connected with the air cylinder assembly through a sliding sheet, and the swing rotor and the sliding sheet divide an inner cavity of the air cylinder assembly into a first compression chamber and a second compression chamber; the first compression chamber is connected with an air suction silencing cavity through an air inlet channel, one end of the air suction silencing cavity is connected to the air cylinder assembly in a straight insertion mode, and the other end of the air suction silencing cavity is communicated with the inner low-pressure cavity of the shell; the second compression chamber is connected to an integrated exhaust cover assembly through an exhaust channel (on the cylinder assembly), the exhaust cover assembly is connected with a shell exhaust pipe through an inner exhaust coil pipe to form an integral exhaust channel, and the pump body (movement) is connected with the shell through an elastic supporting piece.

According to the compressor, the pump body formed by the cylinder assembly, the crankshaft, the swing rotor, the motor and the like is arranged on the elastic support piece, so that noise vibration is prevented from being directly transmitted to the shell, and the noise vibration is reduced; the exhaust cover assembly is arranged at the exhaust end, so that the problems of large vibration and large exhaust noise of the rotor compressor are solved; compressed high-temperature gas is directly discharged out of the shell through the exhaust cover assembly and the inner exhaust coil, the temperature and the pressure in the shell can be kept not to be increased, refrigerant gas is directly sucked into the shell through the air suction silencing cavity, the refrigerating capacity can be improved, and the starting performance 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.

This compressor, owing to inhale the sound and fall make an uproar and advance carminative rational arrangement, the vibration obtains better control, and the noise is less, and this structure is applicable to low back pressure compressor, is fit for the use of domestic refrigerator, can improve user's experience and feel.

Through the arrangement of the integrated noise reduction exhaust cover assembly, when gas is exhausted from a cylinder, the gas is expanded and contracted through a multistage expansion chamber formed by the cylinder cover and the exhaust cavity, so that the aim of multistage silencing of the gas is fulfilled, and exhaust noise is reduced; and the cylinder head can play the effect of connecting fixedly, restriction exhaust limiting plate removal, also can eliminate some exhaust noise.

Through the arrangement of the direct-insertion type air suction silencing cavity, the assembly steps can be simplified, and the fixing is firm and the installation is convenient; it is also possible to prevent an increase in oil discharge.

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, the cylinder body is provided with an insertion opening communicated with the air inlet channel, and an air outlet pipe of the air suction silencing cavity is directly inserted into the insertion opening and is fixedly connected with the upper cylinder cover in a screwed mode.

Furthermore, a through groove is vertically arranged on the cylinder body on one side of the air inlet channel in a penetrating manner, 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 swing rotor is arranged in the inner cavity, one end of the sliding sheet is fixedly connected with the swing rotor, and the other end of the sliding sheet penetrates through the swing sliding sheet and extends into the through groove.

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 swing rotor and the sliding sheet are respectively in oil-liquid sealing contact with the upper cylinder cover and the lower cylinder cover; the length of the sliding sheet is matched with the horizontal length of the through groove.

Furthermore, a clamping groove is axially arranged on the outer circumference of the swing rotor, and the radial section of the clamping groove is in an I shape; 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.

The arrangement of the swing rotor and the sliding sheet is adopted, the swing 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 bilaterally symmetrical double compression bins, so that higher energy efficiency is obtained.

Through the mode that fluid is sealed, can guarantee swing the rotor with gleitbretter and last cylinder cap and form the seal end face down between the cylinder cap, reduce revealing each other of high-low pressure district, promote the compression effect.

Furthermore, the air suction silencing cavity is divided into an upper silencing cavity and a lower silencing cavity by a transverse partition plate, and a communicating hole is formed in the transverse partition plate; the lower silencing cavity is provided with a gas suction and outlet pipe at one side far away from the upper silencing cavity, the gas suction and outlet pipe is arranged close to the outer edge of the lower silencing cavity, two sides of the gas suction and outlet pipe are respectively provided with a convex mounting part, the mounting parts are provided with a plurality of mounting holes, and the end parts of the gas suction and outlet pipe are provided with direct-insert gas suction and outlet ports; the side of the upper silencing cavity is connected with an air suction pipe, and the pipe orifice of the air suction pipe is arranged close to the air suction pipe of the shell.

Through setting up the outlet duct of breathing in of formula of cuting straightly, can with in the inlet channel of the gas outlet disect insertion cylinder block of breathing in, and pass through the installation department reaches the mounting hole will be whole breathe in the amortization chamber and fix on the upper cylinder cap of compressor, convex the installation department is convenient for with the tight cooperation of upper cylinder cap, the mounting hole can directly use the screw to connect fixedly with the upper cylinder cap spiro union. The installation part is arranged at the edge of the air suction and noise reduction cavity, and is also convenient to be in contact connection with the cylinder body and the upper cylinder cover.

Furthermore, the air suction and outlet port is cylindrical, and the air suction and outlet port and the air suction and outlet pipe are coaxially arranged and are vertical to the end surface of the lower silencing cavity; the upper silencing cavity is also internally provided with a plurality of vertical clapboards perpendicular to the transverse clapboards, the vertical clapboards divide the upper silencing cavity into a plurality of communicated silencing chambers, and at least one silencing chamber is connected with the air suction pipe.

When the compressor works, gas in a compressor shell is sucked into the upper silencing cavity from the gas suction pipe, the gas is expanded and buffered in the plurality of cavities of the upper silencing cavity, the noise of airflow is reduced, the gas after noise reduction enters the lower silencing cavity through the communicating hole, the gas enters the cylinder body from the gas suction outlet pipe and the gas suction outlet under the further sound absorption and noise reduction effects of the lower silencing cavity, the noise of the gas entering the cylinder body is obviously controlled, and no obvious low-frequency noise exists. The structure can eliminate air suction pulsation, has obvious effect on low-frequency noise below 1000Kz, and has good sound absorption and noise reduction effects.

Further, the exhaust cover assembly comprises a cylinder connecting cover and an exhaust silencing cover which are connected into a whole; the inside of the exhaust silencing cover is divided into a plurality of exhaust cavities by partition plates, and insertion pipes are arranged on the partition plates to communicate the adjacent exhaust cavities; the exhaust cavity on one side is connected with the inner exhaust coil pipe, and the exhaust cavity on the other side is connected with the cylinder connecting cover through a connecting pipe.

Further, the cylinder connecting cover is provided with an inner cavity, and the connecting pipe is connected with and inserted into the inner cavity; the cylinder connecting cover and the exhaust silencing cover are respectively fixed on the cylinder assembly in a threaded manner, and the inner cavity of the cylinder connecting cover is communicated with the exhaust channel.

The arrangement of the cavities ensures that discharged gas is diffused and buffered in each cavity, the air flow speed and impact force are reduced, the gas is discharged after the air flow is moderated, and the exhaust noise is obviously reduced.

Furthermore, the elastic support element comprises an inner support pin arranged on a bottom plate or a side wall on the inner side of the casing, 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 connected with the cylinder assembly through the pressure spring support block; a shell air suction pipe is arranged on the same side of the shell as the shell exhaust pipe, and a process pipe is arranged on the other side of the shell; the inner exhaust coil is distributed in the shell in a snakelike bent mode.

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 invention has the beneficial effects that: 1. according to the compressor, the pump body formed by the cylinder assembly, the crankshaft, the swing rotor, the motor and the like is arranged on the elastic support piece, so that noise vibration is prevented from being directly transmitted to the shell, and the noise vibration is reduced; the exhaust cover assembly is arranged at the exhaust end, so that the problems of large vibration and large exhaust noise of the rotor compressor are solved; the high-temperature gas is directly discharged out of the shell, so that the temperature and the pressure in the shell can be kept not to be increased, the refrigerating capacity can be improved, and the starting performance is excellent; 2. 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; 3. the compressor has the advantages that due to the reasonable arrangement of sound absorption, noise reduction and air intake and exhaust, vibration is well controlled, the noise is low, the structure is suitable for a low-backpressure compressor, is suitable for a household refrigerator, and can improve the experience of a user; 4. the direct-insertion type air suction silencing cavity can be directly inserted into the cylinder body of the compressor and connected with the upper cylinder cover, so that the assembly steps are simplified, the fixation is firm, and the installation is convenient; 5. the integrated noise-reduction exhaust cover assembly not only can play a role in connecting and fixing and limiting the movement of the exhaust limiting plate, but also can reduce exhaust noise; 6. the arrangement of the swing rotor and the sliding sheet is adopted, the swing rotor and the sliding sheet are in close contact, 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 top view (partially in section) of a novel oscillating rotor compressor with a low pressure chamber in the casing of the present invention;

FIG. 2 is a schematic view of the structure A-A of the novel oscillating rotor compressor with a low pressure chamber in the casing according to the present invention;

FIG. 3 is a schematic view of a sectional view of a novel oscillating rotor compressor with a low pressure chamber in the casing according to the present invention;

FIG. 4 is a schematic view of a second sectional structure of a novel oscillating rotor compressor with a low pressure chamber in the casing according to the present invention;

FIG. 5 is a schematic view of the structure of the oscillating rotor and the sliding vane of the novel oscillating rotor compressor with a low pressure chamber in the casing according to the present invention;

FIG. 6 is an enlarged view of the connecting structure of the oscillating rotor and the sliding vane of the novel oscillating rotor compressor with a low pressure chamber in the casing according to the present invention;

FIG. 7 is a schematic view of the structure of the suction muffler chamber of the novel oscillating rotor compressor with a low pressure chamber in the casing according to the present invention;

FIG. 8 is a schematic cross-sectional view of the suction muffler chamber of the novel oscillating rotor compressor with a low pressure chamber in the housing of the present invention;

FIG. 9 is a schematic view of the discharge cover assembly of the novel oscillating rotor compressor with a low pressure chamber in the housing of the present invention;

FIG. 10 is a schematic perspective view of the discharge cover assembly of the novel oscillating rotor compressor with the low pressure chamber in the housing of the present invention;

FIG. 11 is a schematic view of the cylinder connecting cover of the discharge cover assembly of the novel oscillating rotor compressor with a low pressure chamber in the casing according to the present invention;

FIG. 12 is a schematic view of the mounting structure of the discharge cover assembly of the novel oscillating rotor compressor with a low pressure chamber in the casing according to the present invention;

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 crankshaft; 4. a motor; 5. a cylinder block; 6. a lower cylinder cover; 7. an upper cylinder cover; 8. oscillating the rotor; 801. a clamping groove; 9. sliding blades; 901. a groove; 10. an air intake passage; 11. an insertion opening; 12. an air suction silencing cavity; 1201. a lower muffling chamber; 1202. an upper silencing chamber; 1202a, a first sound-deadening chamber; 1202b, a second sound-deadening chamber; 1203. an air intake duct; 1204. a gas suction and outlet pipe; 1205. a suction air outlet; 1206. an installation part; 1207. mounting holes; 13. an exhaust cap assembly; 1301. a cylinder connecting cover; 1302. an exhaust silencing cover; 1303. a connecting pipe; 1304. an exhaust connecting pipe; 1305. a partition plate; 1306. an insertion tube; 1307. a raised structure; 1308. a flange edge; 1309. an inner cavity; 1310. a connecting lug; 14. an inner exhaust coil; 15. a housing exhaust pipe; 16. a shell air suction pipe; 17. a process tube; 19. a through groove; 20. swinging the sliding sheet; 21. a transverse partition; 2101. a communicating hole; 2102. installing a frame; 2103. a filter mesh sheet; 22. a vertical partition plate; 23. bending the pipe; 24. and (4) air inlet and outlet.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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 swing rotor compressor with a low pressure cavity in a casing comprises a casing 1, wherein a pump body is installed in the casing 1 through a plurality of elastic support members 2, the pump body comprises a cylinder assembly, a crankshaft 3 is sleeved on the cylinder assembly, and a motor 4 is sleeved above the crankshaft 3; the pump body also comprises a swing rotor 8 arranged in the cylinder component, and the swing rotor 8 is sleeved with the crankshaft 3; the swing rotor 8 is connected with the cylinder assembly through a sliding sheet 9 (see fig. 5), and the swing rotor 8 and the sliding sheet 9 divide an inner cavity of the cylinder assembly into a first compression chamber and a second compression chamber; the first compression chamber is connected with an air suction and noise reduction cavity 12 through an air inlet channel 10, the lower end of the air suction and noise reduction cavity 12 is connected to the air cylinder assembly in a straight-inserting mode, and the upper end of the air suction and noise reduction cavity is communicated with the interior of the shell 1; the second compression chamber is connected to an integral exhaust cover assembly 13 by an exhaust passage (not shown) and the exhaust cover assembly 13 is connected to a shell exhaust duct 15 by an inner exhaust coil 14.

According to the compressor, the pump body formed by the cylinder assembly, the crankshaft 3, the swing rotor 8, the motor 4 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 exhaust cover assembly 13 (with an exhaust silencing cavity) is arranged at the exhaust end, so that the problems of large vibration and large exhaust noise of the rotor compressor are solved; compressed high-temperature gas is directly discharged out of the shell 1 through the exhaust cover assembly 13 and the inner exhaust coil 14, the temperature and the pressure in the shell 1 can be kept not to rise, refrigerant gas is directly sucked into the shell 1 through the air suction and sound attenuation cavity 12, the refrigerating capacity can be improved, and the starting performance is excellent.

This compressor, owing to inhale the sound and fall make an uproar and intake and exhaust rational arrangement, the vibration obtains better control, and the noise is less, can maintain low backpressure in the casing, be fit for the use of domestic refrigerator, can improve user's experience and feel.

Through the arrangement of the integrated noise reduction exhaust cover assembly 13, gas is expanded and contracted through the multistage expansion chambers formed in the exhaust cover assembly 13 when being discharged from the cylinder, so that the aim of multistage silencing of the gas is fulfilled, and exhaust noise is reduced.

The assembly steps can be simplified by arranging the direct-insertion type air suction silencing cavity 12, and the fixing is firm and the installation is convenient; it is also possible to prevent an increase in oil discharge.

Further, the cylinder assembly comprises a cylinder body 5, an upper cylinder cover 7 and a lower cylinder cover 6 which are connected with each other, and the cylinder body 5, the upper cylinder cover 7 and the lower cylinder cover 6 surround to form the inner cavity; the cylinder body 5 is provided with a horizontal air inlet channel 10, the cylinder body 5 is provided with an insertion opening 11 communicated with the air inlet channel 10, and an air outlet pipe of the air suction and silencing cavity 12 is directly inserted into the insertion opening 11 and is fixed with the upper cylinder cover 7 in a threaded connection mode.

Further, as shown in fig. 5, a through groove 19 is vertically penetratingly formed in the cylinder block 5 on one side of the air intake passage 10, a horizontal cross section of the through groove 19 is gourd-shaped, and a swinging slide piece 20 is disposed in the through groove 19 on one side close to the inner cavity; the swing rotor 8 is arranged in the inner cavity, one end of the sliding sheet 9 is fixedly connected with the swing rotor 8, and the other end of the sliding sheet penetrates through the swing sliding sheet 20 and extends into the through groove 19.

Further, the upper cylinder cover 7 and the lower cylinder cover 6 are respectively screwed on the upper side and the lower side of the cylinder block 5, and the upper end surface and the lower end surface of the swing rotor 8 and the sliding sheet 9 are respectively in oil-liquid sealing contact with the upper cylinder cover 7 and the lower cylinder cover 6; the length of the sliding sheet 9 is matched with the horizontal length of the through groove 19.

Further, as shown in fig. 6, an engaging groove 801 is axially formed on an outer circumference of the swing rotor 8, and a radial cross section of the engaging groove 801 is i-shaped; grooves 901 are symmetrically formed in two sides of the end portion of the sliding sheet 9, the grooves 901 are matched with the clamping grooves 801, and the end portion of the sliding sheet 9 is clamped in the clamping grooves 801.

The arrangement of the swing rotor 8 and the sliding sheet 9 is adopted, the swing 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 bilaterally symmetrical double compression bins, so that higher energy efficiency is obtained.

Through the mode that fluid is sealed, can guarantee swing rotor 8 with form the seal end face between gleitbretter 9 and upper cylinder cover 7 and the lower cylinder cover 6, reduce revealing each other of high-low pressure region, promote the compression effect.

Through the connection of the structure, the swing rotor 8 and the sliding sheet 9 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 cap 7 and lower cylinder cap 6 gleitbretter 9 reaches swing rotor 8 can not relative movement and rock, gleitbretter 9 can wind swing gleitbretter 20 rotates and follows logical groove 19 removes to cooperate swing rotor 8 realizes the compression in the intracavity eccentric motion.

Further, as shown in fig. 3 and 4, the elastic support 2 includes four inner support pins 201 disposed on an inner bottom plate of the housing 1, a compressed spring support block 202 is sleeved on the inner support pins 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 connected to the cylinder assembly 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 between the pump body and the machine shell 1 can be isolated, the rigid collision is reduced, and the effects of shock absorption, buffering and noise reduction are better.

Example two:

the embodiment provides a specific structure of the air suction and sound attenuation cavity.

As shown in fig. 7 and 8, the air suction noise reduction chamber 12 is divided into an upper noise reduction chamber 1202 and a lower noise reduction chamber 1201 by a transverse partition 21, and a communication hole 2101 is provided in the transverse partition 21; a suction air outlet pipe 1204 is arranged on one surface of the lower silencing cavity 1201 far away from the upper silencing cavity 1202, the suction air outlet pipe 1204 is arranged close to the outer edge of the lower silencing cavity 1201, two sides of the suction air outlet pipe 1204 are respectively provided with a convex mounting part 1206, the mounting part 1206 is provided with a plurality of mounting holes 1207, and the end part of the suction air outlet pipe 1204 is provided with a direct-insert suction air outlet 1205; the upper digestive cavity 1202 is connected with a suction pipe 1203 at the side, and the orifice of the suction pipe 1203 is arranged close to the casing suction pipe 16 (see fig. 1).

Through setting up the outlet duct 1204 of breathing in of formula of cuting straightly, can with gas outlet 1205 of breathing in inserts directly in the inlet channel 10 of cylinder block 5, and through the installation department 1206 reaches the mounting hole 1207 will be whole breathe in the amortization chamber 12 and fix on the side of the upper cylinder lid 7 of compressor, convex installation department 1206 is convenient for closely cooperate with upper cylinder lid 7, mounting hole 1207 can directly use the screw to fix with upper cylinder lid 7 spiro union. The mounting portion 1206 is disposed at the edge of the air suction and noise reduction chamber 12, and is also convenient for contact connection with the cylinder block 5 and the upper cylinder head 7.

Further, the air suction and outlet port 1205 is cylindrical, and the air suction and outlet port 1205 is coaxial with the air suction and outlet pipe 1204 and is perpendicular to the end surface of the lower sound-deadening chamber 1201; a vertical partition plate 22 perpendicular to the transverse partition plate 21 is further arranged in the upper silencing cavity 1202, the vertical partition plate 22 divides the upper silencing cavity 1202 into a first silencing chamber 1202a and a second silencing chamber 1202b which are communicated, and the first silencing chamber 1202a is connected with the air suction pipe 1203.

During operation, gas in a compressor shell is sucked into the upper silencing cavity 1202 from the gas suction pipe 1203, the gas is expanded and buffered in a plurality of chambers of the upper silencing cavity 1202, airflow noise is reduced, the gas subjected to noise reduction enters the lower silencing cavity 1201 through the communication hole 2101, under the further sound absorption and noise reduction effects of the lower silencing cavity 1201, the gas enters the cylinder block 5 from the gas suction and gas outlet pipe 1204 and the gas suction and gas outlet port 1205, and the gas noise entering the cylinder block 5 is obviously controlled without obvious low-frequency noise. The structure can eliminate air suction pulsation, has obvious effect on low-frequency noise below 1000Kz, and has good sound absorption and noise reduction effects. The cylindrical suction air outlet 1205 also prevents the refrigerator oil from directly entering the cylinder block from the suction muffler chamber, preventing the increase of oil discharge.

Further, the first sound deadening chamber 1202a and the second sound deadening chamber 1202b communicate through an elbow 23, and the elbow 23 is provided on the vertical partition 22; the suction end of said elbow 23 is located in said first sound-deadening chamber 1202a, and the end of said elbow 23 is connected to said communication hole 2101; the portion of the elbow 23 located in the second sound-deadening chamber 1202b is provided with an air inlet/outlet hole 24.

Further, a mounting frame 2102 is arranged on one side, located in the lower sound-deadening chamber 1201, of the transverse partition 21, and the mounting frame 2102 surrounds the communication hole 2101; a filter mesh 2103 is arranged in the mounting frame 2102 in a clamping, gluing or welding manner, and the filter mesh 2103 is over against the communication hole 2101.

The arrangement of the filter screen 2103 can filter out particle impurities in the sucked gas, so that the impurities are prevented from being sucked into the cylinder body 5 of the compressor, the cylinder assembly can be protected, and the service life of the compressor is prolonged.

Example three:

the embodiment provides a specific structure of the exhaust cover assembly.

As shown in fig. 9 and 10, the exhaust cover assembly 13 includes a cylinder connection cover 1301 and an exhaust silencing cover 1302 which are integrally connected; the inside of the exhaust silencing cover 1302 is divided into two exhaust cavities by a partition 1305, and an insertion pipe 1306 is arranged on the partition 1305 to communicate the adjacent exhaust cavities; the exhaust cavity on one side is connected with the exhaust connecting pipe 1304, and the exhaust cavity on the other side is connected with the cylinder connecting cover 1301 through a connecting pipe 1303. The inner exhaust coil 14 is inserted into and connected to the exhaust connection pipe 1304.

Further, as shown in fig. 11, the cylinder connection cover 1301 has an inner cavity 1309, and the connection pipe 1303 is connected and inserted into the inner cavity 1309; as shown in fig. 12, the cylinder connection cover 1301 and the exhaust silencing cover 1302 are screwed and fixed to the upper cylinder head 7, and the inner cavity 1309 of the cylinder connection cover 1301 is communicated with the exhaust passage.

The arrangement of the cavities ensures that discharged gas is diffused and buffered in each cavity, the air flow speed and impact force are reduced, the gas is discharged after the air flow is moderated, and the exhaust noise is obviously reduced. And cylinder connection cover 1301 can enough play fixedly connected, the effect that the restriction exhaust limiting plate removed, also can eliminate some exhaust noise.

Further, the exhaust silencing cover 1302 is a fan-shaped disc structure and comprises a cover body and a cover plate which are connected with each other, the inner sides of the cover body and the cover plate are respectively provided with a clamping groove, the clamping grooves are correspondingly arranged, and the partition plate 1305 is clamped and fixed in the clamping grooves; the outer contour of the cover body is provided with a convex structure 1307 corresponding to the clamping groove.

The cover body and the cover plate can be manufactured in a stamping mode, and the arrangement of the clamping grooves facilitates the positioning and installation of the partition plate 1305; the protruding structure 1307 can increase the depth of the clamping groove on the cover body, and is more beneficial to the installation of the partition board.

Further, the opening of the cover body is provided with a flange 1308, and the edge of the cover plate is matched with the flange 1308 and is fixed in a threaded manner. Two screw holes are additionally formed in the flange 1308 and the edge of the cover plate, so that the whole exhaust silencing cover 1302 can be conveniently mounted on the upper cylinder head 7. The cylinder connection cover 1301 is rectangular, and semicircular connection lugs 1310 are arranged on two sides of the cylinder connection cover 1301 and used for mounting the cylinder connection cover 1301 on the upper cylinder cover 7.

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 swing rotor compressor with a low-pressure cavity in a shell 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 swing rotor arranged in the cylinder assembly, and the swing rotor is sleeved with the crankshaft; the swing rotor is connected with the air cylinder assembly through a sliding sheet, and the swing rotor and the sliding sheet divide an inner cavity of the air cylinder assembly into a first compression chamber and a second compression chamber; the first compression chamber is connected with an air suction silencing cavity through an air inlet channel, one end of the air suction silencing cavity is connected to the air cylinder assembly in a straight insertion mode, and the other end of the air suction silencing cavity is communicated with the inner low-pressure cavity of the shell; the second compression chamber is connected to an integrated exhaust cover assembly through an exhaust passage, the exhaust cover assembly is connected with a shell exhaust pipe through an inner exhaust coil pipe to form an integral exhaust passage, and the pump body is connected with the shell through an elastic supporting piece.

2. The compressor as claimed in claim 1, wherein the cylinder assembly comprises a cylinder block, an upper cylinder head and a lower cylinder head connected to each other, the cylinder block, the upper cylinder head and the lower cylinder head enclosing to form the inner chamber; the cylinder body is provided with a horizontal air inlet channel, the cylinder body is provided with an insertion opening communicated with the air inlet channel, and an air outlet pipe of the air suction silencing cavity is directly inserted into the insertion opening and is fixedly connected with the upper cylinder cover in a screwed mode.

3. The compressor as claimed in claim 1, wherein a latching groove is axially formed on the outer circumference of the swing rotor, and the latching groove has an i-shaped radial cross section; 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.

4. The compressor as claimed in claim 1 or 2, wherein the suction muffler chamber is divided into an upper muffler chamber and a lower muffler chamber by a transverse partition plate, the transverse partition plate having a communication hole; the lower silencing cavity is provided with a gas suction and outlet pipe at one side far away from the upper silencing cavity, the gas suction and outlet pipe is arranged close to the outer edge of the lower silencing cavity, two sides of the gas suction and outlet pipe are respectively provided with a convex mounting part, the mounting parts are provided with a plurality of mounting holes, and the end parts of the gas suction and outlet pipe are provided with direct-insert gas suction and outlet ports; the side of the upper silencing cavity is connected with an air suction pipe, and the pipe orifice of the air suction pipe is arranged close to the air suction pipe of the shell on the shell.

5. The compressor as claimed in claim 4, wherein said suction outlet is cylindrical and is coaxial with said suction outlet pipe and perpendicular to the end surface of said lower muffling chamber; the upper silencing cavity is also internally provided with a plurality of vertical clapboards perpendicular to the transverse clapboards, the vertical clapboards divide the upper silencing cavity into a plurality of communicated silencing chambers, and at least one silencing chamber is connected with the air suction pipe.

6. The compressor as claimed in claim 1, wherein the exhaust cover assembly comprises a cylinder connecting cover and an exhaust silencing cover connected together; the inside of the exhaust silencing cover is divided into a plurality of exhaust cavities by partition plates, and insertion pipes are arranged on the partition plates to communicate the adjacent exhaust cavities; the exhaust cavity on one side is connected with the inner exhaust coil pipe, and the exhaust cavity on the other side is connected with the cylinder connecting cover through a connecting pipe.

7. The compressor as claimed in claim 6, wherein the cylinder connection cover has an inner cavity, and the connection pipe is connected to and inserted into the inner cavity; the cylinder connecting cover and the exhaust silencing cover are respectively fixed on the cylinder assembly in a threaded manner, and the inner cavity of the cylinder connecting cover is communicated with the exhaust channel.

8. The compressor as claimed in claim 1, wherein the resilient support comprises an inner support pin disposed on the bottom plate or the sidewall of the casing, a compressed spring support block is sleeved on the inner support pin, a compressed spring or a tension spring is disposed on the compressed spring support block, and the other end of the compressed spring or the tension spring is also connected to the cylinder assembly through the compressed spring support block.

9. The compressor as claimed in claim 1, wherein the casing has a casing suction pipe on the same side as the casing discharge pipe and a process pipe on the other side; the inner exhaust coil is distributed in the shell in a snakelike bent mode.