CN211397903U - Pump body subassembly and have its sliding vane compressor - Google Patents
Pump body subassembly and have its sliding vane compressor Download PDFInfo
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- CN211397903U CN211397903U CN201922061423.5U CN201922061423U CN211397903U CN 211397903 U CN211397903 U CN 211397903U CN 201922061423 U CN201922061423 U CN 201922061423U CN 211397903 U CN211397903 U CN 211397903U
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Abstract
The utility model provides a pump body subassembly and have its sliding vane compressor. Wherein, pump body subassembly includes flange, cylinder, pivot and a plurality of gleitbretter, and gleitbretter slidable ground sets up on the rotor portion of pivot, and rotor portion is located the cylinder, and pump body subassembly still includes the exhaust subassembly, and the exhaust subassembly sets up on rotor portion, and the exhaust subassembly includes: the first exhaust structure extends to the peripheral surface of the rotor part; the silencing structure is provided with a silencing cavity, or the silencing cavity is formed between the silencing structure and the flange; the connecting channel is communicated with the first exhaust structure, the silencing cavity is communicated with the first exhaust structure through the connecting channel, and the flange comprises an exhaust hole; wherein, the anechoic cavity forms the helmholtz resonance body with the connecting channel, and the helmholtz resonance body absorbs the aerodynamic noise in the gas passing through the helmholtz resonance body. The utility model provides an among the prior art sliding vane compressor produce great noise and influence the user and use the problem of experience at the operation in-process.
Description
Technical Field
The utility model relates to a compressor technical field particularly, relates to a pump body subassembly and have its sliding vane compressor.
Background
In the prior art, in order to solve the problems of large exhaust speed and large exhaust resistance caused by small exhaust area of the sliding vane compressor in the prior art, an annular hole is arranged on a flange of the sliding vane compressor for exhausting.
However, in the operation process of the sliding vane compressor, the exhaust flow of the sliding vane compressor is large and the flow channel is complex, so that large pneumatic noise is generated inside the sliding vane compressor, and the sliding vane compressor generates large operation noise, so that the sliding vane compressor generates environmental noise, which affects the use experience of a user.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a pump body subassembly and have its sliding vane compressor to sliding vane compressor produces great noise and influences the problem that the user used experience in the operation process among the solution prior art.
In order to achieve the above object, according to the utility model discloses an aspect provides a pump body subassembly, including flange, cylinder, pivot and a plurality of gleitbretter, gleitbretter slidable ground sets up on the rotor portion of pivot, and rotor portion is located the cylinder, and pump body subassembly still includes exhaust subassembly, and exhaust subassembly sets up on rotor portion, and exhaust subassembly includes: the first exhaust structure extends to the peripheral surface of the rotor part; the silencing structure is provided with a silencing cavity, or the silencing cavity is formed between the silencing structure and the flange; the connecting channel is communicated with the first exhaust structure, the silencing cavity is communicated with the first exhaust structure through the connecting channel, and the flange comprises an exhaust hole; wherein, the anechoic cavity forms the helmholtz resonance body with the connecting channel, and the helmholtz resonance body absorbs the aerodynamic noise in the gas passing through the helmholtz resonance body.
Furthermore, the first exhaust structure is a first groove-shaped structure arranged on the end face of the rotor part, the silencing structure is a second groove-shaped structure arranged on the end face of the rotor part, a silencing cavity is formed between the second groove-shaped structure and the flange, the extending direction of the second groove-shaped structure and the extending direction of the connecting channel are arranged at an included angle, and the width d of the connecting channelcLess than the length d of the second slot-like structure.
Further, the groove depth of the first groove-like structure coincides with the groove depth of the second groove-like structure.
Further, the rotor part is provided with a plurality of sliding vane grooves for mounting the sliding vanes; the exhaust assembly is a plurality of, and each exhaust assembly is located between two adjacent slide grooves, and a plurality of exhaust assemblies set up with a plurality of slide grooves one-to-one.
Further, the exhaust assembly further comprises: the second exhaust structure is communicated with the first exhaust structure and/or the connecting channel, and the second exhaust structure is positioned in the rotor part; and the air inlet hole is communicated with the second exhaust structure and extends to the second exhaust structure from the peripheral surface of the rotor part.
Furthermore, the air inlet hole is a plurality of, and a plurality of air inlet holes are along the axial direction of rotor portion and/or circumference interval setting.
Further, the air inlet hole is one or more of a circular hole, an elliptical hole, a waist-shaped hole and a polygonal hole.
Further, the second exhaust structure is a through hole, and the extending direction of the through hole is consistent with the axial direction of the rotor part.
Further, the air inlet hole extends along the radial direction of the rotor part, and the extending direction of the air inlet hole and the extending direction of the second exhaust structure are perpendicular to each other.
Further, the length of the connecting channel is LcAnd satisfies 0.2mm < Lc≤2mm。
Furthermore, the volume of the anechoic cavity is V, and V is less than or equal to 70mm3。
Further, the cross-sectional area of the connecting passage is AcAnd satisfies 0 < Ac≤30mm2。
Further, the second groove-shaped structure is a polygonal groove, or a circular groove, or an elliptical groove, or a kidney-shaped groove.
According to the utility model discloses an on the other hand provides a sliding vane compressor, including the casing with be located the pump body subassembly of casing, pump body subassembly is foretell pump body subassembly.
Use the technical scheme of the utility model, noise-abatement structure has the anechoic chamber, or forms the anechoic chamber between noise-abatement structure and the flange. The connecting channel is communicated with the first exhaust structure, the silencing cavity is communicated with the first exhaust structure through the connecting channel, and the silencing cavity and the connecting channel form a Helmholtz resonance body. In the operation process of the pump body assembly, gas in a compression cavity of the cylinder enters the first exhaust structure to enter the exhaust hole through the first exhaust structure and is exhausted out of the pump body assembly through the exhaust hole. Like this, the in-process that is located the gas in first exhaust structure and is getting into the exhaust hole, and gas is through the helmholtz resonance body, and the helmholtz resonance body absorbs the pneumatic noise in the gas, and then reduces the noise that pump body subassembly operation in-process produced, avoids pump body subassembly to produce great ambient noise and influence the user and use experience, and then has solved among the prior art sliding vane compressor and produced great noise and influence the problem that the user used and experience at the operation in-process.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
figure 1 shows an exploded view of a first embodiment of a pump body assembly according to the present invention;
FIG. 2 shows a cross-sectional view of the pump body assembly of FIG. 1;
FIG. 3 shows a perspective view of the shaft of the pump block assembly of FIG. 1;
FIG. 4 is a schematic perspective view of another angle of the spindle of FIG. 3;
FIG. 5 shows a top view of the spindle of FIG. 3;
FIG. 6 shows a partial cross-sectional view of the spindle of FIG. 3;
FIG. 7 shows a perspective view of a flange of the pump body assembly of FIG. 1;
fig. 8 shows a schematic perspective view of a second embodiment of the rotating shaft of the pump body assembly according to the present invention; and
fig. 9 shows a schematic perspective view of a third embodiment of a rotating shaft of a pump body assembly according to the present invention.
Wherein the figures include the following reference numerals:
10. a flange; 11. an exhaust hole; 12. an air intake portion; 13. an upper flange; 14. a lower flange; 20. a cylinder; 21. a compression chamber; 30. a rotating shaft; 31. a rotor portion; 311. a slide groove; 40. sliding blades; 50. an exhaust assembly; 51. a first exhaust structure; 52. a sound-deadening structure; 53. a connecting channel; 54. a second exhaust structure; 55. an air inlet; 61. an upper valve plate assembly; 62. a lower valve plate assembly; 70. a lower cover plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless otherwise specified, the use of directional words such as "upper and lower" is generally in reference to the orientation shown in the drawings, or to the vertical, perpendicular or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.
In order to solve the problem that the sliding vane compressor in the prior art generates large noise in the operation process to influence the user use experience, the application provides a pump body assembly and a sliding vane compressor with the same.
Example one
As shown in fig. 1 and 2, the pump body assembly includes a flange 10, a cylinder 20, a rotating shaft 30 and a plurality of sliding pieces 40, the sliding pieces 40 are slidably disposed on a rotor portion 31 of the rotating shaft 30, the rotor portion 31 is located in the cylinder 20, the pump body assembly further includes a gas discharge assembly 50, the gas discharge assembly 50 is disposed on the rotor portion 31, and the gas discharge assembly 50 includes a first gas discharge structure 51, a sound attenuation structure 52 and a connecting channel 53. The first exhaust structure 51 extends to the outer peripheral surface of the rotor portion 31. The sound-deadening structure 52 forms a sound-deadening chamber with the flange 10. The connecting channel 53 communicates with the first exhaust structure 51, the muffling chamber communicates with the first exhaust structure 51 through the connecting channel 53, and the flange 10 includes the exhaust hole 11. Wherein the muffling cavity and the connecting channel 53 form a helmholtz resonator that absorbs aerodynamic noise in the gas passing through it.
By applying the technical scheme of the embodiment, the silencing cavity is formed between the silencing structure 52 and the flange 10. The connecting passage 53 communicates with the first exhaust structure 51, the muffling chamber communicates with the first exhaust structure 51 through the connecting passage 53, and the muffling chamber and the connecting passage 53 form a helmholtz resonator. During operation of the pump block assembly, gas in the compression chamber 21 of the cylinder 20 enters the first exhaust structure 51, enters the exhaust hole 11 through the first exhaust structure 51, and is discharged out of the pump block assembly through the exhaust hole 11. Like this, the gaseous in-process that gets into exhaust hole 11 that is located first exhaust structure 51, gaseous via the helmholtz resonance body, the helmholtz resonance body absorbs the pneumatic noise in the gas, and then reduces the noise that pump body subassembly operation in-process produced, avoids pump body subassembly to produce great environmental noise and influence the user and use experience, and then has solved among the prior art sliding vane compressor and produced great noise and influence the problem that the user used experience at the operation in-process.
It should be noted that the structure of the muffling chamber is not limited to this. In other embodiments not shown in the drawings, the muffling structure has a muffling chamber. Therefore, in the operation process of the pump body assembly, gas in the compression cavity of the cylinder enters the first exhaust structure to enter the exhaust hole through the first exhaust structure and is exhausted out of the pump body assembly through the exhaust hole. Like this, the in-process that is located the gas in first exhaust structure and is getting into the exhaust hole, and gas is through the helmholtz resonance body, and the helmholtz resonance body absorbs the pneumatic noise in the gas, and then reduces the noise that pump body subassembly operation in-process produced, avoids pump body subassembly to produce great ambient noise and influence the user and use experience, and then has solved among the prior art sliding vane compressor and produced great noise and influence the problem that the user used and experience at the operation in-process.
In this embodiment, when the gas passes through the muffling cavity, under the action of the sound pressure, due to friction and damping during vibration, a part of the sound energy is converted into heat energy to be dissipated, and when the sound wave frequency is the same as the natural frequency of the muffling cavity, the sound energy is consumed most. Meanwhile, because the acoustic impedance at the joint of the muffling cavity and the first exhaust structure 51 changes suddenly, a part of the sound energy is reflected back, so that a phase difference is generated between the forward-transmitted sound wave and the reflected wave, mutual interference is generated, corresponding pressure fluctuation becomes smoother, and the purposes of muffling and noise reduction are achieved.
As shown in fig. 3 to 6, the first air discharging structure 51 is a first groove-shaped structure disposed on the end surface of the rotor portion 31, the sound-deadening structure 52 is a second groove-shaped structure disposed on the end surface of the rotor portion 31, a sound-deadening cavity is formed between the second groove-shaped structure and the flange 10, the extending direction of the second groove-shaped structure is arranged at an angle to the extending direction of the connecting channel 53, and the width d of the connecting channel 53cLess than the length d of the second slot-like structure. In this way, the first groove-like structure extends to the outer peripheral surface of rotor portion 31 to ensure that the gas in compression chamber 21 can enter first exhaust structure 51, and the gas entering first exhaust structure 51 can pass through the helmholtz resonator, which absorbs aerodynamic noise in the gas to realize the noise elimination and reduction functions of the noise elimination chamber. Meanwhile, the structure is simple, the processing and the realization are easy, and the processing cost of the exhaust component 50 is reduced.
Specifically, the above numerical relationship between the connecting channel 53 and the second groove-like structure ensures that the connecting channel 53 and the muffling cavity can form a helmholtz resonator, so that the operating noise of the pump body assembly is reduced, and the user experience is improved.
In this embodiment, the groove depth of the first groove-like structure coincides with the groove depth of the second groove-like structure. Specifically, the groove depth directions of the first groove-shaped structure and the second groove-shaped structure are consistent with the axial direction of the rotor part 31, so that the first exhaust structure 51 and the noise elimination structure 52 are easier and simpler to process, the processing difficulty and the processing cost of the exhaust assembly 50 are reduced, and the labor intensity of workers is reduced.
Alternatively, the rotor portion 31 has a plurality of slide grooves 311 for mounting the slide 40. The exhaust assemblies 50 are plural, each exhaust assembly 50 is located between two adjacent slide grooves 311, and the plural exhaust assemblies 50 are provided in one-to-one correspondence with the plural slide grooves 311. As shown in fig. 3 to 5, the rotor portion 31 has three slide grooves 311, the number of the exhaust assemblies 50 is three, and the three exhaust assemblies 50 are disposed in one-to-one correspondence with the three slide grooves 311, so as to ensure that the pump body assembly can meet the exhaust volume requirement. Simultaneously, above-mentioned setting makes rotor portion 31's atress more even, has promoted rotor portion 31's structural strength, has prolonged pump body assembly's life.
As shown in fig. 3-6, the exhaust assembly 50 further includes a second exhaust structure 54 and an intake aperture 55. The second exhaust structure 54 is in communication with the first exhaust structure 51, and the second exhaust structure 54 is located in the rotor portion 31. The intake port 55 communicates with the second exhaust structure 54, and the intake port 55 extends from the outer peripheral surface of the rotor portion 31 to the second exhaust structure 54. Like this, above-mentioned setting has increased rotor portion 31's radial exhaust volume, reduces exhaust pressure fluctuation, further reduces the aerodynamic noise that pump body subassembly produced at the exhaust in-process, has promoted user's use and has experienced.
Specifically, the gas in the compression cavity 21 can directly go on in the first exhaust structure 51, also can get into the first exhaust structure 51 via the inlet hole 55 and the second exhaust structure 54, and the gas that gets into in the first exhaust structure 51 gets into in the exhaust hole 11 via the helmholtz resonator, and then realizes the absorption of the aerodynamic noise in the gas by the helmholtz resonator to reduce the operating noise that the pump body subassembly produced in the operation process.
In other embodiments not shown in the figures, the second exhaust structure communicates only with the connecting channel. Like this, above-mentioned setting has increased the radial exhaust volume of rotor portion, reduces exhaust pressure fluctuation, further reduces the aerodynamic noise that pump body subassembly produced at the exhaust in-process, has promoted user's use and has experienced. Specifically, the gas that is located the compression cavity both can directly carry out first exhaust structure in, also can get into connecting channel via inlet port and second exhaust structure, in getting into first exhaust structure via connecting channel, the gas that gets into in the first exhaust structure gets into in the exhaust hole via the helmholtz resonance body, and then realizes the absorption of the aerodynamic noise in the helmholtz resonance body is to gas to reduce the operating noise that pump body subassembly produced in the operation process.
In other embodiments not shown in the drawings, the second exhaust structure communicates with the first exhaust structure and the connecting channel. Like this, above-mentioned setting has increased the radial exhaust volume of rotor portion, reduces exhaust pressure fluctuation, further reduces the aerodynamic noise that pump body subassembly produced at the exhaust in-process, has promoted user's use and has experienced. Specifically, the gas in the compression cavity may directly enter the first exhaust structure, enter the connection channel through the gas inlet and the second exhaust structure, enter the first exhaust structure through the connection channel, and enter the first exhaust structure through the gas inlet and the second exhaust structure. Afterwards, the gas that gets into in the first exhaust structure gets into in the exhaust hole through the Helmholtz resonance body, and then realizes the absorption of the aerodynamic noise in the Helmholtz resonance body is to gas to reduce the operating noise that pump body subassembly produced at the operation in-process.
As shown in fig. 3 to 6, the air intake holes 55 are plural, and the plural air intake holes 55 are provided at intervals along the axial direction of the rotor portion 31. Therefore, on one hand, the radial air inlet volume of the pump body assembly is increased, and the exhaust pressure fluctuation is reduced; on the other hand makes rotor portion 31's axis direction's atress more even, unanimous, has promoted rotor portion 31's structural strength, has extended pump body assembly's life.
Note that the arrangement of the intake holes 55 is not limited to this. Alternatively, a plurality of intake holes 55 are provided at intervals in the circumferential direction of the rotor portion 31. Like this, above-mentioned setting has increased the radial volume of admitting air of pump body subassembly, reduces exhaust pressure fluctuation, further reduces the aerodynamic noise that pump body subassembly produced at the exhaust in-process, has promoted user's use and has experienced.
Note that the arrangement of the intake holes 55 is not limited to this. Alternatively, a plurality of intake holes 55 are provided at intervals in the axial direction and the circumferential direction of the rotor portion 31. Therefore, on one hand, the radial air inlet volume of the pump body assembly is increased, and the exhaust pressure fluctuation is reduced; on the other hand makes rotor portion 31's axis direction and the atress of circumference more even, unanimous, has promoted rotor portion 31's structural strength, has extended pump body subassembly's life.
Optionally, the air intake holes 55 are one or more of circular holes, elliptical holes, kidney-shaped holes, and polygonal holes. In the present embodiment, the intake holes 55 are all circular holes. Thus, the arrangement avoids the stress concentration and turbulence at the air inlet 55, so that the exhaust of the pump assembly is smoother, and the service life of the rotor part 31 is also prolonged.
As shown in fig. 6, the second exhaust structure 54 is a through hole, and the extending direction of the through hole coincides with the axial direction of the rotor portion 31. Thus, the second exhaust structure 54 can be easily and conveniently processed, and the processing difficulty and the processing cost are reduced.
Specifically, flange 10 includes flange 13 and lower flange 14, last flange 13 and lower flange 14 all have exhaust hole 11 on, each exhaust assembly 50 includes two first exhaust structures 51, two first exhaust structures 51 set up respectively on rotor portion 31, on the lower terminal surface, in order to ensure that exhaust assembly 50 can all communicate with two exhaust holes 11, second exhaust structure 54 and two first exhaust structures 51 all communicate, and then make pump body assembly's exhaust more smooth and easy, ensure pump body assembly can normal operating, pump body assembly's operational reliability has been promoted.
As shown in fig. 6, the intake port 55 extends in the radial direction of the rotor portion 31, and the extending direction of the intake port 55 and the extending direction of the second exhaust structure 54 are perpendicular to each other. Thus, the arrangement makes the air in the compression chamber 21 enter the air inlet hole 55 and the second exhaust structure 54 more easily and smoothly, and also makes the processing of the exhaust assembly 50 easier and simpler, and reduces the processing cost.
As shown in FIG. 5, the connecting passage 53 has a length LcAnd satisfies 0.2mm < LcLess than or equal to 2 mm. In this way, the above numerical range can avoid the structural interference between the noise cancellation structure 52 and the vane groove 311 from affecting the structural strength of the rotor portion 31, and can ensure the noise cancellation and noise reduction reliability of the helmholtz resonator, thereby ensuring that the helmholtz resonator can absorb the aerodynamic noise in the gas.
In the embodiment, the volume of the anechoic cavity is V, and V is less than or equal to 70mm3. Like this, above-mentioned numerical range has promoted rotor portion 31's structural strength under the prerequisite of guaranteeing that the helmholtz resonator can absorb the aerodynamic noise in the gas, and then has prolonged pump body assembly's life.
In the present embodiment, the cross-sectional area of the connecting passage 53 is AcAnd satisfies 0 < Ac≤30mm2。
Optionally, the second groove-like structure is a polygonal groove, or a circular groove, or an elliptical groove, or a kidney groove. In this embodiment, the second trough-like structure is a kidney-shaped trough. Thus, the structure is simple, the processing and the realization are easy, and the processing cost of the rotor part 31 is reduced.
In this embodiment, the rotating shaft 30, the sliding piece 40 and the cylinder 20 together define a working chamber of the pump assembly, and the rotation of the rotating shaft 30 drives the sliding piece 40 to reciprocate in the working chamber, so that the volume of the working chamber changes, and the processes of refrigerant suction, compression and discharge are realized.
In the present embodiment, the transmission loss T of the helmholtz resonator during the operation of the pump body assemblyL(ignoring flow and viscosity of the gas in the muffling chamber) are:
wherein A iscTo connect the cross-sectional areas of the channels 53, ApIs the cross-sectional area, A, of the second venting structure 54VIs the cross-sectional area of the muffling cavity (first groove-like structure), k is the wave number, λ is the wavelength, d is the length of the muffling cavity (first groove-like structure), L is the width of the muffling cavity (first groove-like structure), L iscTo connect the lengths of the channels 53, dcTo connect the width of the channel 53, dpIs the width of the second venting structure 54 and V is the volume of the muffling chamber.
As shown in fig. 7, the flange 10 (the upper flange 13 and the lower flange 14) further has an intake portion 12 thereon, and gas enters the cylinder 20 through the intake portion 12.
As shown in fig. 1, the pump body assembly further includes an upper valve plate assembly 61, a lower valve plate assembly 62 and a lower cover plate 70. The upper valve plate assembly 61 is arranged at the position of the exhaust hole 11 of the upper flange 13, the lower valve plate assembly 62 is arranged at the position of the exhaust hole 11 of the lower flange 14, and the upper valve plate assembly 61 and/or the lower valve plate assembly 62 are ejected after the gas pressure reaches a preset value, so that the exhaust action of the pump body assembly is realized. The lower cover plate 70 is provided in connection with the lower flange 14 to protect the lower flange 14 and to support the rotation shaft 30.
The application also provides a sliding vane compressor (not shown), which comprises a shell and a pump body assembly positioned in the shell, wherein the pump body assembly is the pump body assembly.
Example two
The pump body assembly in the second embodiment is different from the first embodiment in that: the intake holes 55 are different in shape.
As shown in fig. 8, the intake holes 55 have a hexagonal structure. The arrangement makes the air inlet 55 easier and simpler to process, and reduces the processing cost and the processing difficulty of the rotor part 31.
EXAMPLE III
The pump body assembly in the third embodiment is different from that in the first embodiment in that: the intake holes 55 are different in shape.
As shown in fig. 9, the air intake holes 55 have a triangular structure. The arrangement makes the air inlet 55 easier and simpler to process, and reduces the processing cost and the processing difficulty of the rotor part 31.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
the silencing structure is provided with a silencing cavity, or the silencing cavity is formed between the silencing structure and the flange. The connecting channel is communicated with the first exhaust structure, the silencing cavity is communicated with the first exhaust structure through the connecting channel, and the silencing cavity and the connecting channel form a Helmholtz resonance body. In the operation process of the pump body assembly, gas in a compression cavity of the cylinder enters the first exhaust structure to enter the exhaust hole through the first exhaust structure and is exhausted out of the pump body assembly through the exhaust hole. Like this, the in-process that is located the gas in first exhaust structure and is getting into the exhaust hole, and gas is through the helmholtz resonance body, and the helmholtz resonance body absorbs the pneumatic noise in the gas, and then reduces the noise that pump body subassembly operation in-process produced, avoids pump body subassembly to produce great ambient noise and influence the user and use experience, and then has solved among the prior art sliding vane compressor and produced great noise and influence the problem that the user used and experience at the operation in-process.
It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A pump body assembly, including flange (10), cylinder (20), pivot (30) and a plurality of gleitbretter (40), gleitbretter (40) slidable sets up on rotor portion (31) of pivot (30), rotor portion (31) is located in cylinder (20), characterized in that, pump body assembly still includes exhaust subassembly (50), exhaust subassembly (50) set up on rotor portion (31), exhaust subassembly (50) includes:
a first exhaust structure (51), the first exhaust structure (51) extending to an outer peripheral surface of the rotor portion (31);
a sound-attenuating structure (52), the sound-attenuating structure (52) having a sound-attenuating cavity, or the sound-attenuating cavity being formed between the sound-attenuating structure (52) and the flange (10);
a connection channel (53), said connection channel (53) communicating with said first venting structure (51), said muffling chamber communicating with said first venting structure (51) through said connection channel (53), said flange (10) comprising a venting orifice (11); wherein the muffling cavity and the connecting channel (53) form a Helmholtz resonator that absorbs aerodynamic noise within the gas passing therethrough.
2. Pump body assembly according to claim 1, characterized in that the first venting structure (51) is a first groove-like structure provided on the end face of the rotor part (31), the sound-attenuating structure (52) is a second groove-like structure provided on the end face of the rotor part (31), which forms the sound-attenuating chamber with the flange (10), the direction of extension of the second groove-like structure being arranged at an angle to the direction of extension of the connecting channel (53), the width d of the connecting channel (53) being such thatcLess than the length d of the second slot-like structure.
3. The pump body assembly of claim 2, wherein a groove depth of the first groove-like structure coincides with a groove depth of the second groove-like structure.
4. The pump body assembly according to claim 1, wherein the rotor portion (31) has a plurality of vane grooves (311) for mounting the vanes (40); the number of the exhaust assemblies (50) is multiple, each exhaust assembly (50) is located between two adjacent sliding sheet grooves (311), and the exhaust assemblies (50) and the sliding sheet grooves (311) are arranged in a one-to-one correspondence mode.
5. The pump body assembly according to claim 1, wherein the exhaust assembly (50) further comprises:
a second exhaust structure (54) communicating with the first exhaust structure (51) and/or the connecting channel (53), the second exhaust structure (54) being located inside the rotor portion (31);
and the air inlet hole (55) is communicated with the second exhaust structure (54), and the air inlet hole (55) extends from the outer peripheral surface of the rotor part (31) to the second exhaust structure (54).
6. The pump body assembly according to claim 5, wherein the air intake holes (55) are plural, and the plural air intake holes (55) are arranged at intervals in an axial direction and/or a circumferential direction of the rotor portion (31).
7. The pump block assembly according to claim 5, wherein the air intake holes (55) are one or more of circular holes, elliptical holes, kidney holes, and polygonal holes.
8. Pump body assembly according to claim 5, characterized in that the second venting structure (54) is a through hole, the through hole extending in the direction of the axis of the rotor portion (31).
9. The pump body assembly according to claim 8, characterized in that the intake holes (55) extend in a radial direction of the rotor portion (31), and the direction of extension of the intake holes (55) and the direction of extension of the second exhaust structure (54) are arranged perpendicular to each other.
10. Pump body assembly according to claim 1, characterized in that the connecting channel (53) has a length LcAnd satisfies 0.2mm < Lc≤2mm。
11. The pump body assembly according to claim 1, wherein the volume of the muffling chamber is V and V is equal to or less than 70mm3。
12. Pump body assembly according to claim 1, characterized in that the cross-sectional area of the connecting channel (53) is AcAnd satisfies 0 < Ac≤30mm2。
13. The pump body assembly according to claim 2, wherein the second groove-like structure is a polygonal groove, or a circular groove, or an elliptical groove, or a kidney groove.
14. A sliding vane compressor comprising a housing and a pump body assembly located within the housing, wherein the pump body assembly is as claimed in any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922061423.5U CN211397903U (en) | 2019-11-25 | 2019-11-25 | Pump body subassembly and have its sliding vane compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922061423.5U CN211397903U (en) | 2019-11-25 | 2019-11-25 | Pump body subassembly and have its sliding vane compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211397903U true CN211397903U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922061423.5U Active CN211397903U (en) | 2019-11-25 | 2019-11-25 | Pump body subassembly and have its sliding vane compressor |
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| Country | Link |
|---|---|
| CN (1) | CN211397903U (en) |
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2019
- 2019-11-25 CN CN201922061423.5U patent/CN211397903U/en active Active
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