CN218817008U - Oil blocking noise elimination structure of rotor assembly, compressor and air conditioner - Google Patents

Abstract

The utility model provides a rotor subassembly keep off oily noise-abatement structure, compressor and air conditioner, rotor subassembly keep off oily noise-abatement structure and include: the rotor assembly and the oil baffle seat, the oil baffle seat forms an oil baffle seat circulation hole, and the oil baffle seat circulation hole is communicated with the rotor circulation hole; the second axial end face is convexly provided with an oil guide part in a direction departing from the rotor assembly, a resonant cavity is arranged inside the oil guide part, the resonant cavity extends along the protruding direction of the oil guide part, a resonant cavity neck passage is further arranged inside the oil blocking seat, one end of the resonant cavity neck passage is communicated with the oil blocking seat circulation hole, the other end of the resonant cavity neck passage is communicated with the resonant cavity, and therefore part of fluid in the oil blocking seat circulation hole can be guided into the resonant cavity through the resonant cavity neck passage. According to the utility model discloses can solve the rotor compressor especially under the heavy duty condition, lead to the problem that compressor complete machine noise risees by a wide margin when flowing through rotor circulation passageway by pump body exhaust gas to motor lower chamber.

Description

Oil blocking noise elimination structure of rotor assembly, compressor and air conditioner

Technical Field

The utility model relates to a compressor technical field, concretely relates to rotor subassembly keep off oily noise cancelling structure, compressor and air conditioner.

Background

The conventional rolling rotor compressor mainly comprises a pump body assembly, a motor assembly, a liquid distributor component, a shell assembly, an upper cover, a lower cover and the like. The casing assembly and the upper and lower covers are matched to form a closed structure, the casing is mainly composed of two parts, namely a pump body assembly and a motor assembly, the pump body assembly comprises main parts such as an upper flange, a cylinder, a crankshaft, a roller and a lower flange, all the parts are matched with each other to form a closed cavity, and the motor assembly comprises a stator assembly and a rotor assembly. The rotary compressor generates driving force on a crankshaft of the pump body through the action of electromagnetic force generated between the motor rotor component and the stator component, and the volume of a cavity of the pump body is continuously changed to periodically suck, compress and exhaust air under the action of the rotation driving of the crankshaft. The oil-gas mixture gas discharged from the pump body cavity enters the motor lower cavity space, then passes through the motor circulation channel hole to reach the motor upper cavity, and then is discharged out of the compressor to enter the air conditioning system.

Lubrication among friction pairs of a compressor pump body mainly depends on an oil way in the pump body to pump lubricating oil to a contact surface of a moving part, so that the effects of lubrication, cooling and heat dissipation are achieved. The main and auxiliary bearing oil circuit structure of the conventional rolling rotor compressor is as follows: the bent axle is provided with central oilhole, and the bent axle major and minor axis root designs respectively has the side oilhole that link up with bent axle central oilhole, is equipped with the pump oil device in the bent axle central oilhole, and the interior disc of upper flange and lower flange is provided with the spiral oil groove respectively. When the compressor runs, under the action of the crankshaft central oil hole oil pumping device, lubricating oil in the bottom oil pool is pumped into the central oil hole, pumped to the end parts of the inner circular surfaces of the lower flange and the upper flange through the side oil holes at the root parts of the crankshaft long and short shafts, and pumped to the surfaces of friction pairs (main and auxiliary bearings) of the upper flange and the lower flange and the crankshaft long and short shafts through spiral oil grooves on the upper flange and the lower flange respectively, so that oil circuit lubrication of the main and auxiliary bearings is realized.

When the compressor runs at high frequency, friction of moving parts generates a large amount of heat energy, if the oil pumping amount is insufficient, the heat dissipation is insufficient, the pump body is rapidly heated, the working cavity of the cylinder is heated, and the volumetric efficiency is reduced; meanwhile, the exhaust temperature rises rapidly, resulting in a decrease in the efficiency of the motor and finally in a decrease in the performance of the compressor. At the same time, at high frequencies, the requirements for lubrication between the contact surfaces of the moving parts are higher, especially between the crankshaft and the upper flange, and sufficient lubrication oil needs to be provided for lubrication.

In addition, when the compressor runs, oil drops are filled in the cavity, one of the main sources of the oil drops is that a lubricating oil path of the pump body is directly communicated with a lower motor cavity, and under the action of centrifugal force and gas force, oil liquid of the lubricating oil path enters an upper motor cavity and is discharged into a system, so that the oil discharge rate of the compressor during high-frequency running is high, the performance of the compressor is reduced, and the reliability risk of oil shortage in the compressor is increased.

Because the rotor compressor among the prior art, especially small-size high frequency compressor, because of rotor circulation passageway space design restriction, flow area is less, and compressor high frequency operation, especially under the heavy operating mode, when rotor circulation passageway is flowed through to the motor lower chamber by pump body exhaust gas, gas flow velocity is great, produces comparatively serious pneumatic noise to lead to technical problem such as compressor complete machine noise risees by a wide margin, consequently the utility model discloses research design a rotor subassembly keep off oily noise-elimination structure, compressor and air conditioner.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the compressor among the prior art and having compressor high frequency operation when the rotor circulation passageway is flowed through by pump body exhaust gas to motor lower chamber, the gas flow speed is great, produces the defect of comparatively serious pneumatic noise to an oil noise elimination structure, compressor and the air conditioner of keeping off of rotor subassembly are provided.

In order to solve the above problem, the utility model provides a rotor subassembly keep off oily noise-abatement structure, it includes:

the oil baffle seat comprises a first axial end face positioned at one axial end of the oil baffle seat and a second axial end face positioned at the other axial end of the oil baffle seat, the first axial end face is connected with one axial end of the rotor assembly, the rotor assembly is provided with a rotor through hole for allowing fluid to pass through, the oil baffle seat is provided with an oil baffle seat through hole in a manner of penetrating from the first axial end face to the second axial end face, and the oil baffle seat through hole is communicated with the rotor through hole;

the second axial end face is provided with an oil guide part in a protruding manner in a direction away from the rotor assembly, a resonant cavity is arranged inside the oil guide part, the resonant cavity extends along the protruding direction of the oil guide part, a resonant cavity neck passage is further arranged inside the oil baffle seat, one end of the resonant cavity neck passage is communicated with the oil baffle seat circulation hole, and the other end of the resonant cavity neck passage is communicated with the resonant cavity, so that part of fluid in the oil baffle seat circulation hole can be guided into the resonant cavity through the resonant cavity neck passage.

In some embodiments, the rotor assembly further comprises an oil baffle plate arranged on one axial side of the oil baffle seat away from the rotor assembly,

the second axial end face is provided with a screw or rivet matching portion in a protruding mode towards the direction of the oil baffle plate, the screw or rivet matching portion extends to the end face, in the axial direction, of the oil baffle seat, the screw or rivet matching portion is connected with the end face, in the axial direction, of the oil baffle plate, a screw or rivet hole is formed in the screw or rivet matching portion, and the screw or rivet hole can penetrate through the screw or rivet to enter the screw or rivet hole to fix the oil baffle plate to the oil baffle seat.

In some embodiments, the oil guide part and the screw or rivet fitting part have the same protruding height, so that the oil baffle plate is also connected with the free end of the oil guide part; and/or the oil guide part is positioned at the radial outer side of the oil blocking seat circulation hole so as to block the fluid flowing out of the oil blocking seat circulation hole.

In some embodiments, the oil guide part and the screw or rivet matching part are of a convex structure connected into a whole, so as to form an oil guide boss structure; the resonant cavity and the screw or the rivet hole are arranged at intervals.

In some embodiments, the resonance chamber extends from the first axial end surface of the oil deflector through the entire length of the oil guide and into abutment with an axial end surface of the oil deflector, one end of the resonance chamber being sealed by the oil deflector and the other end of the resonance chamber being sealed by the rotor assembly.

In some embodiments, along the axial direction of the rotor assembly, the resonance cavity neck passage is a passage that extends from the first axial end face of the oil retainer toward the second axial end face, but does not penetrate to the second axial end face.

In some embodiments, an axial end surface of the oil guiding portion extends to meet the oil baffle plate and is a third axial end surface, the third axial end surface is a sealing end, the resonant cavity extends from the first axial end surface of the oil baffle seat to be spaced from the third axial end surface by a predetermined distance, the third axial end surface is sealed against one end of the resonant cavity, and the rotor assembly is sealed against the other end of the resonant cavity.

In some embodiments, the resonance chamber neck passage is a passage extending from the first axial end face of the oil retainer toward the second axial end face but not penetrating to the second axial end face in the axial direction of the rotor assembly.

In some embodiments, an axial end surface of the oil guiding portion extends to be connected with the oil baffle plate and is a third axial end surface, the third axial end surface is a through hole end, the resonant cavity extends from the third axial end surface to be spaced from the first axial end surface by a preset distance, the first axial end surface is a sealing end, one end of the resonant cavity is sealed by the oil baffle plate, and the other end of the resonant cavity is sealed by the first axial end surface.

In some embodiments, the resonant cavity neck passage is spaced from the first axial end face by a minimum distance greater than 0 and the resonant cavity neck passage is spaced from the second axial end face by a minimum distance greater than 0 along an axial direction of the rotor assembly.

In some embodiments, an extending direction of the resonant cavity neck passage from one end communicating with the oil baffle seat through hole to the other end communicating with the resonant cavity is parallel to the first axial end face or forms an inclined included angle (0, 90 °) with the first axial end face.

In some embodiments, the oil blocking seat circulation holes are provided in plurality on the oil blocking seat, and the oil guide portions are also provided in plurality and are arranged in one-to-one correspondence with the oil blocking seat circulation holes; the number of the resonant cavity neck passages is also multiple, and the resonant cavity neck passages are also communicated with the resonant cavities in the oil guide part in a one-to-one correspondence manner.

The utility model also provides a compressor, its fender oil noise elimination structure who includes aforementioned rotor subassembly.

The utility model also provides an air conditioner, it includes aforementioned compressor.

The utility model provides a pair of rotor subassembly keep off oily sound-absorbing structure, compressor and air conditioner have following beneficial effect:

the utility model discloses a set up the convex oil portion of leading of direction that deviates from the rotor subassembly on keeping off the oil seat, can set up the resonant cavity wherein to the inside that keeps off the oil seat still sets up resonant cavity neck passageway, make resonant cavity neck passageway one end with keep off oil seat opening intercommunication, the other end and resonant cavity intercommunication, thereby make and to pass through the leading-in to the resonant cavity of resonant cavity neck passageway with the partial fluid that keeps off in the oil seat opening, the utility model discloses a gas that gets into in the resonant cavity can take place resonance in oil portion department with the fluid that keeps off oil seat opening outgoing (being the outside gas of resonant cavity), thereby effectively reduce the pneumatic noise that the high-frequency air current disturbance in each rotor opening leads to, reach and fall the mesh of making an uproar, improve compressor user listening and feel and experience. Therefore, the problem that the overall noise of the compressor is greatly increased due to the fact that the flow area of the rotor compressor, especially a small high-frequency compressor, is small due to the space design limitation of a rotor flow channel, the compressor runs at high frequency, especially under heavy working conditions, when gas is discharged from a pump body and flows through the rotor flow channel from a lower cavity of a motor, the gas flow speed is high, and serious pneumatic noise is generated is effectively solved.

Drawings

FIG. 1 is a complete machine assembly view of a preferred embodiment of the compressor of the present invention having the oil-blocking noise-attenuating structure of the rotor assembly;

fig. 1-1 is a partial enlarged view of portion M in fig. 1 (a partial enlarged view of a rotor assembly);

fig. 1-2 is a partially enlarged view of a portion N in fig. 1-1 (a partially enlarged view of a resonance muffling structure);

fig. 1-3a are two-dimensional overhead structure views of the oil baffle seat structure of the present invention;

fig. 1-3b are three-dimensional overhead structure views of the oil baffle seat structure of the present invention;

fig. 1-4a are two-dimensional bottom view structural diagrams of the oil baffle seat structure of the present invention;

fig. 1-4b are three-dimensional bottom view structural diagrams of the oil baffle seat structure of the present invention;

FIGS. 1-5a are cross-sectional views B-B of FIGS. 1-3;

FIGS. 1-5b are cross-sectional views C-C of FIGS. 1-3;

fig. 2a is an alternative embodiment of the oil-stopping and noise-attenuating structure with rotor assembly according to alternative embodiment 1 of the present invention, which is a cross-sectional view B-B in fig. 1-3 a;

fig. 2b is an enlarged partial view of an alternative embodiment of the oil-stopping and noise-attenuating structure with a rotor assembly according to the alternative embodiment 1 of the present invention, section N in fig. 1-1;

fig. 3a is an alternative embodiment of the oil baffle muffler structure with rotor assembly according to alternative embodiment 2 of the present invention, which is a cross-sectional view B-B in fig. 1-3 a;

fig. 3b is an enlarged partial view of an alternative embodiment of the oil-stopping and noise-attenuating structure with a rotor assembly according to the alternative embodiment 2 of the present invention, as shown in fig. 1-1, section N;

fig. 4a is a cross-sectional view B-B of fig. 1-3a showing an alternative embodiment of the oil-stopping and noise-attenuating structure with a rotor assembly according to alternative embodiment 3 of the present invention;

fig. 4b is an enlarged partial view of the oil baffle and noise elimination structure with the rotor assembly according to the alternative embodiment 3 of the present invention, which is shown in fig. 1-1 as part N.

The reference numerals are represented as:

1. a pump body assembly; 2. a motor assembly; 21. a rotor assembly; 211. a rotor body; 2111. a rotor flow aperture; 212. an oil retaining structure; 2121. an oil baffle plate; 2122. an oil blocking seat; 21221. a first axial end face; 21222. a second axial end face; 21223. a flow hole of the oil baffle seat; 213. a primary counterbalance; 214. a secondary counterbalance; 215. locking screws or rivets; 22. a stator assembly; 201. a resonant cavity neck passage; 202. a resonant cavity; 203. an oil guide part; 2031. a third axial end face; 204. a screw or rivet engaging portion; 205. a screw or rivet hole; 100. an oil guide boss structure; 200. a resonance sound-deadening structure; 3. a dispenser component; 4. a housing assembly; 5. an upper cover; 6. a lower cover; 11. an upper flange; 12. a cylinder; 13. a crankshaft; 14. a roller; 15. and a lower flange.

Detailed Description

As shown in fig. 1-4b, the utility model provides a rotor assembly keeps off oily noise-abatement structure, it includes:

the oil blocking device comprises a rotor assembly 21 and an oil blocking seat 2122, wherein the oil blocking seat 2122 comprises a first axial end face 21221 positioned at one axial end of the oil blocking seat and a second axial end face 21222 positioned at the other axial end of the oil blocking seat, the first axial end face 21221 is connected with one axial end of the rotor assembly 21, a rotor flow hole 2111 is formed in the rotor assembly 21 so as to allow fluid to pass through, an oil blocking seat flow hole 21223 is formed in the oil blocking seat 2122 in a mode of penetrating from the first axial end face 21221 to the second axial end face 21222, and the oil blocking seat flow hole 21223 is communicated with the rotor flow hole 2111;

the second axial end surface 21222 is provided with an oil guiding portion 203 protruding in a direction away from the rotor assembly 21, the oil guiding portion 203 is provided with a resonant cavity 202 inside, the resonant cavity 202 extends along the protruding direction of the oil guiding portion 203, the oil blocking seat 2122 is further provided with a resonant cavity neck passage 201 inside, one end of the resonant cavity neck passage 201 is communicated with the oil blocking seat circulation hole 21223, and the other end is communicated with the resonant cavity 202, so that a part of the fluid in the oil blocking seat circulation hole 21223 can be guided into the resonant cavity 202 through the resonant cavity neck passage 201.

The utility model discloses a set up the convex oil portion of leading of direction that deviates from the rotor subassembly on keeping off the oil seat, can set up the resonant cavity wherein to the inside that keeps off the oil seat still sets up resonant cavity neck passageway, make resonant cavity neck passageway one end with keep off oil seat opening intercommunication, the other end and resonant cavity intercommunication, thereby make and to pass through the leading-in to the resonant cavity of resonant cavity neck passageway with the partial fluid that keeps off in the oil seat opening, the utility model discloses a gas that gets into in the resonant cavity can take place resonance in oil portion department with the fluid that keeps off oil seat opening outgoing (being the outside gas of resonant cavity), thereby effectively reduce the pneumatic noise that the high-frequency air current disturbance in each rotor opening leads to, reach and fall the mesh of making an uproar, improve compressor user listening and feel and experience. Therefore, the problem that the overall noise of the compressor is greatly increased due to the fact that the flow area of the rotor compressor, especially a small high-frequency compressor, is small due to the space design limitation of a rotor flow channel, the compressor runs at high frequency, especially under heavy working conditions, when gas is discharged from a pump body and flows through the rotor flow channel from a lower cavity of a motor, the gas flow speed is high, and serious pneumatic noise is generated is effectively solved.

The utility model discloses a rotor subassembly for rolling rotor formula compressor, the rotor subassembly has rotor body and keeps off oily structure, the last a plurality of opening that is provided with of rotor body, keep off oily structure including keeping off the oil seat and keeping off the oiled-plate, keep off the oil seat and keep off the oiled-plate in proper order the axial cooperation in the one side that the pump body was kept away from to rotor body, keep off to have on the oil seat and correspond unanimous opening with rotor body through hole position and size, a plurality of oil boss structure of leading that have circumference on keeping off the oil seat and arrange, it has the cavity structure who link up its terminal surface from top to bottom to lead oily boss, the cavity structure forms seal chamber (resonant cavity promptly) through cooperating with rotor body, fender oiled-plate. The oil baffle seat is characterized in that a circulation groove is formed in the lower end face of the oil baffle seat, two ends of the circulation groove are respectively communicated with the rotor circulation hole and the resonance cavity, and the circulation groove is matched with the upper end face of the rotor body to form a neck channel of the resonance cavity. The neck passage of the resonant cavity and the resonant cavity together form a rotor flow hole resonance sound attenuation structure 200.

The utility model discloses focus provides an innovative rotor subassembly structure for compressor to above-mentioned small-size high frequency rotor compressor, through optimal design rotor circulation structure with keep off oily structure, keep off oily structural resonant cavity structure that sets up corresponding rotor circulation hole to reduce the pneumatic noise that the high frequency air current disturbance in each rotor circulation hole leads to, reach and fall the purpose of making an uproar, improve compressor user listening and feel and experience.

The conventional rotor compressor mainly depends on an oil baffle plate above a rotor circulation hole, so that oil-gas mixed gas can achieve the effect of oil-gas separation by impacting the oil baffle plate.

On the other hand, due to the limitation of design space, the flow area of the rotor flow holes 2111 is often relatively small, the flow velocity of refrigerant gas flowing through the rotor flow holes 2111 from the lower cavity of the motor is greatly increased, and in addition, due to the circumferential rotation motion of the rotor body 211, gas flowing at high speed in the rotor flow holes 2111 is simultaneously subjected to lateral impact, so that larger airflow disturbance is further caused, and larger aerodynamic noise is generated. Especially under the high-frequency heavy working condition, the gas flow speed is higher, the phenomenon is more serious, and the low-noise design of the compressor is not facilitated.

In recent years, with the trend of miniaturization development of compressors, the operating frequency of the compressors is greatly increased, the influence of a rotor circulation structure on pneumatic noise of the compressors is more prominent, the oil discharge rate of the compressors is obviously increased under high frequency, the reliability of the compressors is influenced, and the problem becomes a difficult point that optimization and improvement are needed in the design process of the rotor compressors.

The utility model mainly relates to a rotor subassembly for rotary compressor, through the fender oil structure of optimizing the rotor subassembly to structural setting up the resonant cavity structure that corresponds the rotor circulation of keeping off oil, thereby under the prerequisite that does not influence rotor rigidity and rotational balance, reduce the compressor and tell oily rate, and improve the pneumatic noise that the high frequency air current disturbance in each rotor opening leads to, reach and fall the purpose of making an uproar and improve high frequency compressor reliability.

As shown in FIG. 1, it is the structure diagram of the whole compressor assembly, the rotor assembly and the related parts of the oil retaining structure thereof according to the preferred embodiment of the present invention.

As shown in fig. 1-1 and fig. 1-2, the inventive rotor assembly 21 for rolling rotor compressor mainly comprises a rotor body 211, an oil blocking structure 212 disposed on the rotor body, a main balance weight 213, an auxiliary balance weight 214, and an assembling locking screw or rivet 215. The oil blocking structure 212 includes an oil blocking plate 2121 and an oil blocking seat 2122, and the oil blocking seat 2122 and the oil blocking plate 2121 are sequentially fitted to a side of the rotor body 211 away from the pump body assembly 1 along the axial direction of the rotor. Further, as shown in fig. 1-3a, the oil blocking seat 2122 has an oil guiding boss structure and a resonance sound-damping structure, so as to achieve oil-gas separation and resonance sound-damping effects.

In some embodiments, further comprises an oil baffle 2121, the oil baffle 2121 is disposed on an axial side of the oil baffle seat 2122 facing away from the rotor assembly 21,

a screw or rivet fitting portion 204 is provided on the second axial end face 21222 to protrude toward the oil baffle 2121, the screw or rivet fitting portion 204 protrudes from the second axial end face 21222 of the oil baffle base 2122 to extend to be connected to an axial end face of the oil baffle 2121, and a screw or rivet hole 205 is provided inside the screw or rivet fitting portion 204, so that the oil baffle 2121 can be fixed to the oil baffle base 2122 by inserting a screw or rivet into the screw or rivet hole 205.

The oil baffle plate is arranged on the oil baffle seat, and the oil baffle plate can block fluid flowing out of the oil baffle seat circulation hole of the oil baffle seat, so that the effect of effective gas-liquid separation is achieved; and the screw or rivet matching part arranged on the second axial end surface of the oil baffle seat can be abutted against the oil baffle plate, so that a space for fluid to flow out and perform gas-liquid separation is effectively formed between the oil baffle plate and the second axial end surface, as shown in fig. 1-2; and set up screw or rivet hole on screw or the rivet cooperation portion, can be effectively through inserting screw or rivet and with keeping off the oil board and keep off the oil seat and be fixed as an organic whole structure, also can be with the two integrative fixes to the rotor subassembly.

In some embodiments, the oil guide 203 and the screw or rivet fitting 204 are raised to the same height so that the oil baffle 2121 and the free end of the oil guide 203 are also connected; and/or, the oil guide portion 203 is located at a radial outside of the oil baffle seat circulation hole 21223 to block the fluid flowing out of the oil baffle seat circulation hole 21223. The oil guide part and the screw or rivet matching part of the utility model are both structures protruding towards the oil baffle plate, and the optimal heights of the oil guide part and the screw or rivet matching part are equal, so that the screw or rivet matching part is connected with the oil baffle plate to fixedly connect the screw or rivet matching part and the oil baffle plate, and the oil guide part is connected with the oil baffle plate to seal a resonant cavity inside the oil guide part by utilizing the oil baffle plate; and the utility model discloses still set up in the outside of keeping off oil seat opening through leading oil portion to can further block the effect to the fluid that keeps off oil seat opening outflow, thereby can further improve gas-liquid separation's effect.

The utility model discloses a keep off oil seat and lead oily convex structure, its quantity is unanimous with rotor circulation hole quantity, sets up in one side of keeping away from rotor central axis of rotor circulation hole, comprises screw or rivet cooperation portion and lead oily portion structure jointly, screw or rivet cooperation portion are provided with the screw or the rivet hole of terminal surface about lining up, lead oily portion for having certain thickness and have certain extending length's thin-walled structure along the reversal of rotation in a circumferential direction. The cavity structure is arranged at the oil guide part and penetrates through the upper end face and the lower end face of the oil guide part.

In some embodiments, the oil guiding portion 203 and the screw or rivet fitting portion 204 are connected as a single protruding structure, forming the oil guiding boss structure 100; the resonant cavity 202 is spaced from the screw or rivet hole 205. The oil guide boss structure is a further preferable structure form of the utility model, namely, the oil guide part and the screw or rivet matching part are connected into a whole to form the oil guide boss structure, and the oil guide boss structure and the screw or rivet matching part can be further preferably integrally processed and formed; the interval setting between resonant cavity and screw or rivet hole can avoid the gas in the resonant cavity to get into and take place to leak in screw or rivet hole, leads to the reduction of resonance amortization degree.

As shown in fig. 1-3a-1-5b, the oil guiding boss structure on the oil baffle base 2122 of the structure of the present invention mainly comprises a screw or rivet fitting portion 204 and an oil guiding portion 203, and is disposed on one side of the rotor circulation hole 2111 away from the central axis of the rotor. The screw or rivet fitting portion 204 is provided with a screw or rivet hole 205 penetrating through the upper and lower end surfaces, the oil guiding portion 203 is a thin-walled structure having a certain thickness and a certain extension length in the reverse direction of the rotation direction, the oil guiding portion 203 is provided with a cavity structure (i.e., a resonant cavity 202) penetrating through the upper end surface and the lower end surface of the oil retaining seat 2122, and the cavity structure forms a sealed cavity by fitting with the rotor body 211 and the oil retaining plate 2121. Further, a lower end surface of the oil blocking seat 2122 is provided with a flow groove (i.e. the resonant cavity neck passage 201), and two ends of the flow groove are respectively communicated with the oil blocking seat flow hole 21223 and the resonant cavity 202. The resonance cavity neck passage 201 and the resonance cavity 202 together form a rotor flow hole resonance noise elimination structure.

1-1-5b, in some embodiments, the resonant cavity 202 extends from the first axial end face 21221 of the oil deflector seat 2122 throughout the entire length of the oil guide 203 and into contact with the axial end face of the oil deflector 2121, and is sealed at one end of the resonant cavity 202 by the oil deflector 2121 and at the other end of the resonant cavity 202 by the rotor assembly 21. The utility model discloses the resonant cavity of optimal embodiment runs through to the whole length of leading oil portion from the first axial terminal surface that keeps off the oil seat to make and keep off the oil board and seal resonant cavity one end, the rotor subassembly seals the other end of resonant cavity, the length of the resonant cavity of this embodiment is the longest, the effect of the resonance amortization that can obtain is best.

In some embodiments, along the axial direction of the rotor assembly, the resonance chamber neck passage 201 is a passage extending from the first axial end face 21221 of the oil baffle seat 2122 toward the second axial end face 21222 but not penetrating to the second axial end face 21222. The utility model discloses in the best embodiment, the resonant cavity neck passageway is then seted up on the first axial terminal surface of oil blocking seat and is extended towards second axial terminal surface, but does not run through second axial terminal surface, can guarantee like this that the gas in this passageway can not leak the outside of second axial terminal surface, and the utility model discloses a such intercommunication mode can make the resonant cavity intake bottom to furthest has improved inlet flow, has further improved the effect of resonance amortization.

As shown in fig. 2a-2b, in alternative to embodiment 1, in some embodiments, an axial end surface of the oil guiding portion 203 extends to meet the oil baffle 2121 as a third axial end surface 2031, the third axial end surface 2031 is a sealing end, the resonant cavity 202 extends from the first axial end surface 21221 of the oil baffle 2122 to a predetermined distance from the third axial end surface 2031, one end of the resonant cavity 202 is sealed by the third axial end surface 2031, and the other end of the resonant cavity 202 is sealed by the rotor assembly 21. The utility model discloses replace the upper end of resonant cavity of embodiment 1 to seal, form sealed third axial end through the top of leading oil portion, and the lower extreme is the through-hole structure, seals through the rotor subassembly, can effectively realize leading-in gas to carry out the effect of amortization in the resonant cavity to the sealed effect of the upper end of resonant cavity is better.

The utility model discloses a resonance noise-abatement structure, its cavity structure of leading in the oil portion can set up to only lining up the groove structure who keeps off terminal surface under the oil seat, groove structure and rotor body up end cooperation form seal chamber to constitute resonance noise-abatement structure jointly with the circulation recess of seting up in keeping off terminal surface under the oil seat.

In some embodiments, along the axial direction of the rotor assembly, the resonance chamber neck passage 201 is a passage extending from the first axial end face 21221 of the oil baffle seat 2122 toward the second axial end face 21222 but not penetrating to the second axial end face 21222. The utility model discloses in the alternative embodiment 1, the resonant cavity neck passageway is then seted up on the first axial terminal surface of keeping off the oil seat and is extended towards the second axial terminal surface, but does not run through the second axial terminal surface, can guarantee like this that the gas in this passageway can not leak the outside of second axial terminal surface, and the utility model discloses a such intercommunication mode can make the resonant cavity advance gas at the lower extreme to furthest has improved air intake flow, has further improved the effect of resonance amortization.

3a-3b, in alternative embodiment 2, in some embodiments, an axial end surface of the oil guiding portion 203 extends to meet the oil baffle 2121 and is a third axial end surface 2031, the third axial end surface 2031 is a through hole end, the resonant cavity 202 extends from the third axial end surface 2031 to a predetermined distance from the first axial end surface 21221, the first axial end surface 21221 is a sealing end, one end of the resonant cavity 202 is sealed by the oil baffle 2121, and the other end of the resonant cavity 202 is sealed by the first axial end surface 21221. The utility model discloses the lower extreme of the resonant cavity of alternative embodiment 2 seals, forms sealed end through the bottom of leading oil portion, and the upper end is the through-hole structure, and the upper end is sealed through keeping off the oil board, can effectively realize leading-in gas and carry out the effect of amortization to the resonant cavity in to the sealed effect of the lower extreme of resonant cavity is better.

The resonance muffling structure of this embodiment, the cavity structure on its oil guide portion can be set up to the groove structure that only link up the oil baffle seat up end, the groove structure forms sealed cavity with the terminal surface cooperation under the oil baffle, resonant cavity neck passageway sets up in the non-boss position of oil baffle seat, communicates rotor opening and sealed cavity, and at least not communicate with the up end of non-boss structure.

In some embodiments, the resonant cavity neck passage 201 is spaced from the first axial end face 21221 by a minimum distance greater than 0 and the resonant cavity neck passage 201 is spaced from the second axial end face 21222 by a minimum distance greater than 0 along the axial direction of the rotor assembly. The utility model discloses in the alternative embodiment 2, the resonant cavity neck passageway is then seted up in the inside of keeping off the oil seat and is equallyd divide do not communicate with each other with second axial terminal surface and first axial terminal surface, does not run through first axial terminal surface and second axial terminal surface, can guarantee like this that the gas in this passageway can not leak the outside of first axial terminal surface or second axial terminal surface, and the utility model discloses a such intercommunication mode can make to admit air from the middle part of keeping off the height of oil seat opening, also can realize the effect of resonance amortization.

In some embodiments, the extension direction of the resonant cavity neck passage 201 from the end communicating with the oil baffle seat through hole 21223 to the other end communicating with the resonant cavity 202 is parallel to the first axial end face 21221 or forms an oblique included angle (0, 90 °) with the first axial end face 21221.

In some embodiments, the oil blocking seat circulation hole 21223 is opened in plural on the oil blocking seat 2122, and the oil guiding portion 203 is also provided in plural and is arranged in one-to-one correspondence with the oil blocking seat circulation hole 21223; the number of the resonant cavity neck passages 201 is also multiple, and the resonant cavity neck passages 201 are also in one-to-one communication with the resonant cavities 202 in the oil guiding portion 203. The utility model discloses have on the fender oil seat 2122 of structure and correspond unanimous fender oil seat opening 21223 with the position and the structure size of rotor body 211 opening, and keep off the quantity that leads oily boss structure on the oil seat 2122 and keep off the quantity of oil seat opening 21223 unanimously, for circumference interval arrangement. The structure that such a plurality of one-to-one set up can furthest improve resonance noise reduction's effect.

As shown by arrows in fig. 1, 1-1, and 1-2, the oil-gas mixture discharged from the cavity of the pump body assembly 1 enters the space of the lower cavity of the motor, and the high-speed gas flowing through the rotor flow hole 2111 undergoes resonance noise elimination by the resonance noise elimination structure, and then flows out to the upper part of the rotor oil baffle seat 2122 and the space of the lower part of the rotor oil baffle 2121, and then flows out from the gap between the adjacent oil guide bosses after the joint oil-gas separation action of the oil baffle 2121 and the oil guide part 203, enters the upper cavity of the motor, and is discharged out of the compressor to enter the air conditioning system. Therefore, the pneumatic noise caused by high-speed airflow disturbance in the rotor circulation hole is reduced while the oil-gas mixed gas achieves the effect of better oil-gas separation, so that the purposes of reducing noise and reducing the oil spitting rate are achieved, the reliability of the high-frequency compressor is improved, and the listening experience of the compressor is improved.

The utility model also provides a compressor, it includes preceding arbitrary rotor subassembly keep off oily noise-abatement structure. The utility model discloses a compressor includes the rotor subassembly of aforementioned structural feature, and the compressor can be single cylinder, double-cylinder, multi-cylinder rotor compressor, does for revolving cylinder compressor, gleitbretter compressor, scroll compressor etc..

The utility model also provides an air conditioner, it includes aforementioned compressor.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (14)

1. The utility model provides a fender oil sound-absorbing structure of rotor subassembly which characterized in that: the method comprises the following steps:

the oil baffle device comprises a rotor assembly (21) and an oil baffle seat (2122), wherein the oil baffle seat (2122) comprises a first axial end surface (21221) positioned at one axial end of the oil baffle seat and a second axial end surface (21222) positioned at the other axial end of the oil baffle seat, the first axial end surface (21221) is connected with one axial end of the rotor assembly (21), the rotor assembly (21) is provided with a rotor flow hole (2111) for allowing fluid to pass through, the oil baffle seat (2122) is provided with an oil baffle seat flow hole (21223) in a mode of penetrating from the first axial end surface (21221) to the second axial end surface (21222), and the oil baffle seat flow hole (21223) is communicated with the rotor flow hole (2111);

an oil guide portion (203) is convexly disposed on the second axial end surface (21222) in a direction away from the rotor assembly (21), a resonant cavity (202) is disposed inside the oil guide portion (203), the resonant cavity (202) extends along the protruding direction of the oil guide portion (203), a resonant cavity neck passage (201) is further disposed inside the oil baffle seat (2122), one end of the resonant cavity neck passage (201) is communicated with the oil baffle seat through hole (21223), and the other end of the resonant cavity neck passage is communicated with the resonant cavity (202), so that a portion of fluid in the oil baffle seat through hole (21223) can be introduced into the resonant cavity (202) through the resonant cavity neck passage (201).

2. The oil-blocking noise-abatement structure of the rotor assembly of claim 1, wherein:

the oil baffle plate (2121) is arranged on one axial side of the oil baffle seat (2122) departing from the rotor component (21),

a screw or rivet matching part (204) is arranged on the second axial end face (21222) in a protruding mode in the direction towards the oil baffle plate (2121), the screw or rivet matching part (204) protrudes from the second axial end face (21222) of the oil baffle seat (2122) and extends to be connected with an axial end face of the oil baffle plate (2121), and a screw or rivet hole (205) is arranged inside the screw or rivet matching part (204) so that the screw or rivet can penetrate into the screw or rivet hole (205) through the screw or rivet to fix the oil baffle plate (2121) to the oil baffle seat (2122).

3. The oil-blocking noise-abatement structure of the rotor assembly of claim 2, wherein:

the oil guide part (203) and the screw or rivet matching part (204) have the same protruding height, so that the oil baffle plate (2121) is also connected with the free end of the oil guide part (203); and/or the oil guide part (203) is positioned at the radial outer side of the oil blocking seat through hole (21223) so as to block the fluid flowing out of the oil blocking seat through hole (21223).

4. The oil-stopping and sound-attenuating structure of a rotor assembly of claim 3, wherein:

the oil guide part (203) and the screw or rivet matching part (204) are of a protruding structure which is connected into a whole to form an oil guide boss structure; the resonance chamber (202) is arranged at a distance from the screw or rivet hole (205).

5. The oil-blocking noise-abatement structure of the rotor assembly of claim 2, wherein:

the resonant cavity (202) penetrates through the whole length of the oil guide part (203) from the first axial end surface (21221) of the oil baffle seat (2122) and extends to be connected with the axial end surface of the oil baffle plate (2121), one end of the resonant cavity (202) is sealed through the oil baffle plate (2121), and the other end of the resonant cavity (202) is sealed through the rotor assembly (21).

6. The oil-stopping and noise-eliminating structure of the rotor assembly according to claim 5, wherein:

along the axial direction of the rotor assembly, the resonance chamber neck passage (201) is a passage extending from the first axial end face (21221) of the oil baffle seat (2122) towards the second axial end face (21222) but not penetrating to the second axial end face (21222).

7. The oil-blocking noise-abatement structure of the rotor assembly of claim 2, wherein:

one axial end face of the oil guiding portion (203) extends to be connected with the oil baffle plate (2121) and is a third axial end face (2031), the third axial end face (2031) is a sealing end, the resonant cavity (202) extends from the first axial end face (21221) of the oil baffle seat (2122) to be spaced from the third axial end face (2031) by a preset distance, one end of the resonant cavity (202) is sealed through the third axial end face (2031), and the other end of the resonant cavity (202) is sealed through the rotor assembly (21).

8. The oil-stopping and noise-eliminating structure of the rotor assembly of claim 7, wherein:

along the axial direction of the rotor assembly, the resonance chamber neck passage (201) is a passage extending from the first axial end face (21221) of the oil baffle seat (2122) towards the second axial end face (21222) but not penetrating to the second axial end face (21222).

9. The oil-stopping and sound-attenuating structure of a rotor assembly of claim 2, wherein:

one axial end face of the oil guiding portion (203) extends to be connected with the oil baffle plate (2121) and is a third axial end face (2031), the third axial end face (2031) is a through hole end, the resonant cavity (202) extends from the third axial end face (2031) to be spaced from the first axial end face (21221) by a preset distance, the first axial end face (21221) is a sealing end, one end of the resonant cavity (202) is sealed through the oil baffle plate (2121), and the other end of the resonant cavity (202) is sealed through the first axial end face (21221).

10. The oil-stopping and noise-eliminating structure of the rotor assembly of claim 9, wherein:

in the axial direction of the rotor assembly, the resonant cavity neck passage (201) is spaced from the first axial end face (21221) by a minimum distance greater than 0, and the resonant cavity neck passage (201) is spaced from the second axial end face (21222) by a minimum distance greater than 0.

11. The oil stopping and noise attenuating structure of a rotor assembly of any one of claims 5 to 10, wherein:

the extending direction of one end of the resonant cavity neck passage (201) communicated with the oil blocking seat through hole (21223) to the other end communicated with the resonant cavity (202) is parallel to the first axial end face (21221) or forms an inclined included angle (0, 90 degrees) with the first axial end face (21221).

12. The oil-blocking noise-abatement structure of the rotor assembly of claim 1, wherein:

the oil blocking seat circulating holes (21223) are formed in the oil blocking seat (2122) in a plurality, and the oil guide parts (203) are also formed in a plurality and are arranged in one-to-one correspondence with the oil blocking seat circulating holes (21223); the number of the resonant cavity neck passages (201) is also multiple, and the resonant cavity neck passages (201) are also communicated with the resonant cavities (202) in the oil guide part (203) in a one-to-one correspondence manner.

13. A compressor, characterized by: an oil-stopping noise-attenuating structure comprising the rotor assembly of any one of claims 1-12.

14. An air conditioner, characterized in that: comprising the compressor of claim 13.

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