WO2016037493A1 - 气泵 - Google Patents

气泵 Download PDF

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Publication number
WO2016037493A1
WO2016037493A1 PCT/CN2015/079326 CN2015079326W WO2016037493A1 WO 2016037493 A1 WO2016037493 A1 WO 2016037493A1 CN 2015079326 W CN2015079326 W CN 2015079326W WO 2016037493 A1 WO2016037493 A1 WO 2016037493A1
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WO
WIPO (PCT)
Prior art keywords
passage
air
chamber
intake
outlet
Prior art date
Application number
PCT/CN2015/079326
Other languages
English (en)
French (fr)
Inventor
董振凯
Original Assignee
厦门科际精密器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201420526921.7U external-priority patent/CN204186557U/zh
Priority claimed from CN201410464483.0A external-priority patent/CN105422415B/zh
Application filed by 厦门科际精密器材有限公司 filed Critical 厦门科际精密器材有限公司
Priority to JP2017513501A priority Critical patent/JP6402247B2/ja
Publication of WO2016037493A1 publication Critical patent/WO2016037493A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections

Definitions

  • the present invention relates to the field of air pump equipment, and in particular to an air pump.
  • Micro air pumps are widely used in medical equipment, car seats and other fields, such as sphygmomanometers, massage chairs, etc.
  • the air pump in the related art is prone to noise during work and reduces the quality of the product.
  • the present invention aims to solve at least one of the above technical problems in the prior art to some extent.
  • the present invention needs to provide an air pump which has low operating noise.
  • An air pump includes: an upper cover, an upper air outlet is formed on the upper cover; a valve seat, the valve seat is disposed at a bottom of the upper cover, and an air inlet is formed on the valve seat; a blade movably disposed at the air inlet to open and close the air inlet; and a sound absorbing member disposed between the upper cover and the valve seat, a communication hole communicating with the air inlet is formed on the sound-absorbing member, and an air intake passage, a silencer chamber and an air outlet passage are defined between the sound-absorbing member and the upper cover, and the air inlet passage is connected to the communication hole
  • the air outlet passage is in communication with the air outlet, and the air inlet passage and the air outlet passage are communicated through the sound insulation chamber.
  • the air pump of the embodiment of the present invention since the gas needs to sequentially flow through the intake passage, the muffler chamber, and the air outlet passage from the entry into the valve seat to the discharge of the upper cover, the flow path of the gas can be prolonged, thereby reducing the gas. Flow noise and overall noise of the air pump.
  • air pump according to the above embodiment of the present invention may further have the following additional technical features:
  • a groove is formed on an upper surface of the sound absorbing member, and a bottom of the groove is provided with a boss, and the boss, the groove and the upper cover are defined between Out of the muffler chamber, the intake passage and the outlet passage are formed on an upper surface of the boss and spaced apart.
  • both the intake passage and the outlet passage extend in a straight line and/or a curve.
  • the intake passage sequentially includes an intake port located inside the boss, a plurality of annular passages connected in sequence, and an air outlet located outside the boss, wherein the intake air is located at the intake air
  • An outlet end of the annular passage on the upstream side of the passage is connected to an inlet end of the annular passage on the downstream side of the intake passage.
  • the air outlet passage sequentially includes an air inlet located outside the boss, an annular passage, a straight passage, and an air outlet located inside the boss, wherein the air outlet is located on the upstream side of the air outlet
  • the outlet end of the annular passage is connected to the inlet end of the linear passage on the downstream side of the outlet passage.
  • the intake passage includes a plurality of intake passage sections spaced apart from the inside to the outside, two adjacent intake passage sections are connected, and the plurality of intake passage sections are connected Interconnected in the direction from the inside to the outside Arranged, the plurality of intake passage segments are concentrically arranged arc segments or elliptical arc segments.
  • the boss is provided at a center of the muffler and spaced apart from a side wall of the groove.
  • an air intake chamber and an air outlet chamber are defined between the valve seat and the sound absorbing member, the air inlet chamber is in communication with the air inlet, and the air outlet chamber is connected to the communication hole.
  • the air inlet chamber and the air outlet chamber are in communication through a communication passage.
  • the air pump further includes: a valve seat muffler cavity formed on the valve seat, the valve seat muffler cavity communicating with the intake air chamber to cause the outflow At least a portion of the gas in the intake chamber flows into the valve seat muffler chamber.
  • the intake chamber is plural and the plurality of intake chambers are circumferentially spaced apart.
  • the cross-sectional area of the muffler is equal to the cross-sectional area of the upper cover.
  • an accommodation space is defined between the upper cover and the valve seat, and the noise reduction member is disposed in the accommodation space.
  • FIG. 1 is an exploded view of an air pump according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view of the air pump shown in Figure 1 after assembly;
  • Figure 3 is a perspective view of the upper cover shown in Figure 1;
  • Figure 4 is a bottom plan view of the upper cover shown in Figure 3;
  • Figure 5 is a cross-sectional view taken along line A-A of Figure 4.
  • Figure 6 is a perspective view of the sound absorbing member shown in Figure 1;
  • Figure 7 is a plan view of the sound absorbing member shown in Figure 6;
  • Figure 8 is a perspective view of the valve seat shown in Figure 1;
  • Figure 9 is a top plan view of the valve seat shown in Figure 8.
  • valve seat 31: air inlet; 32: positioning hole;
  • valve piece 41: valve piece portion; 42: positioning portion; 43: positioning ball;
  • S1 intake passage
  • S11 first intake passage section
  • S12 first transition section
  • S13 a second intake passage section
  • S14 a second transition section
  • S15 a third intake passage section
  • S2 outlet passage; S21: first outlet passage section; S22: second outlet passage section; S23: outlet section;
  • S3 silencer cavity
  • S4 intake cavity
  • S5 air outlet cavity
  • S6 communication channel
  • an air pump 100 includes an upper cover 1, a valve seat 3, a valve plate 4, and a sound absorbing member 2.
  • the valve seat 3 is disposed at the bottom of the upper cover 1, and the sound absorbing member 2 is disposed between the upper cover 1 and the valve seat 3.
  • the upper cover 1 is formed with an air outlet 11 and a valve seat. 3 is formed with an air inlet 31, and the sound absorbing member 2 is formed with a communication hole 21 communicating with the air inlet 31.
  • the valve plate 4 is movably disposed at the air inlet 31 to open and close the air inlet 31, and the sound absorbing member 2
  • An intake passage S1, a muffler chamber S3 and an outlet passage S2 are defined between the upper cover 1, the intake passage S1 is in communication with the communication hole 21, the outlet passage S2 is in communication with the outlet port 11, and the intake passage S1 and the outlet passage S2 are passed
  • the muffler chamber S3 is connected.
  • the “air intake port 31” is only for the intake air of the valve seat 3, and does not suggest the air intake port of the air pump 100 as a whole, and the “air outlet port 11” is only for the air outlet of the upper cover 1 . Rather than suggesting the air outlet of the air pump 100 as a whole.
  • the upper cover 1, the muffler 2 and the valve seat 3 are connected in order from top to bottom, wherein the upper cover 1 and the muffler 2 together define an upper gas receiving chamber and an upper gas receiving chamber.
  • the intake passage S1 the muffler chamber S3 and the outlet passage S2, which are connected in series, the muffler 2 and the valve seat 3 together define a lower gas receiving chamber (for example, the intake chamber S4, the outlet chamber S5, and the communication chambers described below may be included).
  • a gas such as air can flow from the air inlet 31 into the lower gas accommodating chamber between the valve seat 3 and the muffler 2, and then flow into the upper gas accommodating chamber through the communication hole 21, and sequentially flow through the upper gas accommodating chamber.
  • the intake passage S1, the muffler chamber S3, and the outlet passage S2 finally discharge the upper cover 1 from the air outlet 11.
  • the air pump 100 needs to be sequentially processed in the process from the entry of the valve seat 3 to the discharge of the upper cover 1 It flows through the intake passage S1, the muffler chamber S3, and the outlet passage S2, thereby prolonging the flow path of the gas, thereby reducing the flow noise of the gas and the overall noise of the air pump 100.
  • the upper surface of the sound absorbing member 2 is formed with a downwardly concave groove 23, and the bottom wall of the groove 23 is provided with a boss 22, a boss 22, a groove 23 and an upper cover.
  • a muffler chamber S3 is defined between 1. As shown in FIG. 3 and FIG.
  • the groove 23 is recessed downward from the upper surface of the muffler 2, and the boss 22 is protruded upward from the bottom wall of the groove 23, wherein the boss 22 can be set in the muffler
  • the center of the member 2, and the boss 22 may be spaced apart from the side wall of the recess 23, and correspondingly, the lower surface of the upper cover 1 is formed with a first recess 13 which is recessed upward, the first recess 13
  • the bottom wall is provided with a first boss 12, and the first boss 12 is protruded downward from the bottom wall of the first groove 13, wherein the first boss 12 can be disposed at the center of the upper cover 1, and the first A boss 12 may be spaced apart from the side walls of the first recess 13 from each other.
  • the cross-sectional shape and size of the groove 23 and the first groove 13 are respectively the same, and the groove 23 and the first groove 13 are vertically opposed to each other, and the boss 22 and the first boss 12 has the same cross-sectional shape and size, and the boss 22 and the first boss 12 are vertically opposite each other.
  • the groove 23 and the first groove 13 together define a muffler cavity. S3, at this time, the outer peripheral wall of the boss 22 and the first boss 12 can be understood as the inner peripheral wall of the muffler chamber S3, and the side wall of the groove 23 and the first groove 13 can be understood as the outer peripheral wall of the muffler chamber S3.
  • the sound absorbing member 2 and the upper cover 1 may have a coaxial central axis after assembly, “inner” may be understood as one side toward the central axis, and the opposite side is defined as “outer”, that is, one away from the central axis. side.
  • the intake passage S1 and the outlet passage S2 are formed on the upper surface of the boss 22 and spaced apart, for example, the intake passage S1 and the outlet passage S2 may respectively be from the upper surface of the boss 22.
  • the first boss 12 can seal the tops of the intake passage S1 and the outlet passage S2 when the upper cover 1 and the muffler 2 are in position, wherein the intake end of the intake passage S1 is
  • the communication hole 21 communicates with each other, and the air outlet end of the air inlet passage S1 communicates with the muffler chamber S3, the air inlet end of the air outlet passage S2 communicates with the muffler chamber S3, and the air outlet end of the air outlet passage S2 communicates with the air outlet port 11.
  • the contact faces of the upper cover 1 and the muffler 2 can be connected together by ultrasonic welding technology.
  • the air inlet channel S1 may extend along a straight line or may extend along a curve, or may extend partially in a straight line and partially along a curve.
  • the air outlet channel S2 may extend along a straight line, may also extend along a curve, or may partially follow a straight line. Extending, partially extending along the curve.
  • the intake passage S1 may extend from the center of the truncated boss 22 toward the outer edge of the boss 22, and the outlet passage S2 may extend from the outer edge of the circular boss 22 toward the boss 22. The center is extended. Thereby, the lengths of the outlet passage S2 and the intake passage S1 can be effectively extended, and the exhaust noise can be effectively reduced.
  • the intake passage S1 sequentially includes an intake port located on the inner side of the boss 22 (ie, a side near the center), a plurality of annular passages connected in sequence, and an air outlet located outside the boss 22, wherein the intake port is located at the intake air.
  • the outlet end of the annular passage on the upstream side of the passage S1 is connected to the inlet end of the annular passage on the downstream side of the intake passage S1.
  • the upstream of the intake passage S1 refers to the upstream of the flow direction of the fluid flowing through the intake passage S1.
  • Downstream of the intake passage S1 refers to the downstream of the flow direction of the fluid flowing through the intake passage S1.
  • the intake passage S1 includes a plurality of intake passage sections spaced apart from the inside to the outside, the adjacent two intake passage sections are connected, and the connection of the plurality of intake passage sections is from the inside to the outside. Staggered in the direction. For example, in the example of FIG.
  • the intake passage S1 may include The three intake passage segments are a first intake passage segment S11, a second intake passage segment S13, and a third intake passage segment S15, respectively, wherein the first intake passage segment S11 and the second intake passage segment S13 are
  • the third intake passage segment S15 extends along a coaxial circular arc line, respectively, and is configured as a concentrically disposed arc segment, a first intake passage segment S11, a second intake passage segment S13, and a third intake passage segment S15.
  • the extension lines are spaced apart from the inside to the outside.
  • each of the intake passage S1 segments may also be configured as an elliptical arc segment or a straight segment or the like.
  • the first intake passage section S11 and the second intake passage section S13 are connected by the first transition section S12, and the second intake passage section S13 and the third intake passage section S15 pass the second transition section S14.
  • the first transition section S12 and the second transition section S14 are respectively located at two ends of the second intake passage section S13, so that the first transition section S12 and the second transition section S14 are staggered, and because of the first transition section S12
  • the connected first intake passage S1 is located inside the third intake passage S1 connected to the second transition portion S14 such that the first transition portion S12 is spaced apart from the inside and the outside of the second transition portion S14.
  • the number and shape of the intake passage S1 can also be set according to actual requirements to better meet the actual requirements.
  • the inner end of the first intake passage segment S11 communicates with the communication hole 21, and the outer end of the third intake passage segment S15 communicates with the muffler chamber S3, thereby entering the intake passage S1 from the communication hole 21.
  • the gas inside may sequentially flow through the first intake passage segment S11, the second intake passage segment S13, and the third intake passage segment S15, and finally into the muffler chamber S3.
  • the air outlet passage S2 sequentially includes an air inlet, an annular passage, a straight passage, and an air outlet located inside the boss 22 on the outer side of the boss 22 (i.e., the side away from the center), wherein the air outlet port is located upstream of the air outlet passage S2.
  • the outlet end of the side annular passage is connected to the inlet end of the linear passage on the downstream side of the outlet passage S2.
  • the upstream of the outlet passage S2 refers to the upstream of the flow direction of the fluid flowing through the intake passage S2.
  • Downstream of the outlet passage S2 refers to the downstream of the flow direction of the fluid flowing through the intake passage S2. Specifically, referring to FIG.
  • the air outlet channel S2 may include two air outlet channel segments, which are a first air outlet channel segment S21 and a second air outlet channel segment S22, respectively, wherein the first air outlet channel segment S21 is configured as a straight segment and a second air outlet channel.
  • the segment S22 is configured as a circular arc segment, the first air outlet channel segment S21 is located inside the second air outlet channel segment S22, and the first air outlet channel segment S21 and the second air outlet channel segment S22 are connected by the air outlet transition segment S23.
  • the air outlet 11 penetrates the central axis of the upper cover 1 in the up and down direction, and the lower end of the air outlet 11 communicates with the inner end of the first air outlet passage section S21, and the second air outlet passage section S22
  • the outer end is in communication with the muffler chamber S3, so that the gas entering the second outlet passage S2 from the muffler chamber S3 can sequentially flow through the second outlet passage segment S22 and the first outlet passage segment S21, and finally discharged from the outlet port 11 Cover 1.
  • the number and shape of the outlet passage S2 can also be set according to actual requirements to better meet the actual requirements.
  • an air inlet chamber S4 and an air outlet chamber S5 are defined between the valve seat 3 and the sound absorbing member 2, and the air inlet chamber S4 is in communication with the air inlet port 31, and the air outlet chamber S5 is The communication holes 21 communicate, and the intake air chamber S4 and the air outlet chamber S5 communicate through the communication passage S6. As shown in FIGS.
  • the top of the valve seat 3 is formed with a downwardly recessed intake groove 33 which together with the bottom wall of the muffler 2 defines an intake chamber S4, the top of the valve seat 3 Formed with a downwardly recessed air outlet groove 34, the air outlet groove 34 and the bottom wall of the sound absorbing member 2 together define an air outlet chamber S5, and the top of the valve seat 3 is formed with a downwardly concave communication passage groove 35, which communicates with the channel groove 35 and The bottom wall of the sound absorbing member 2 collectively defines a communication passage S6.
  • the two ends of the communication passage S6 are respectively connected to the air inlet chamber S4 and the air outlet chamber S5, wherein the air outlet chamber S5 and the communication hole 21 are vertically opposite each other, thereby discharging the air.
  • the gas in the cavity S5 can flow upward along the communication hole 21.
  • the muffler 2 and the valve seat 3 together define three intake chambers S4, and the three intake chambers S4 are evenly distributed in the circumferential direction of the center axis, and each intake air
  • the structures of the chambers S4 are all the same, for example, they can all be configured as cylindrical cavities.
  • the present invention is not limited thereto, and the structure and the number of the intake chamber S4 can also be set according to actual requirements to better meet the actual requirements.
  • the bottom wall of the air inlet groove 33 is formed with a boss upwardly, and the top surface of the boss is formed with at least one air inlet 31, and the bottom wall of the air inlet groove 33 is formed with an air inlet. 31 spaced apart positioning holes 32.
  • the intake ports 31 are plural and the plurality of intake ports 31 are spaced apart along the circumferential direction of the positioning holes 32.
  • a positioning hole 32 is formed at the center of the bottom wall of the air intake groove 33, and the positioning hole 32 may be configured as a circular hole and penetrate the bottom wall of the air intake groove 33 in the up and down direction, the positioning hole 32.
  • Three intake ports 31 are evenly distributed in the circumferential direction, and the three intake ports 31 also penetrate the bottom wall of the intake groove 33 in the up and down direction, respectively.
  • the valve piece 4 includes a valve piece portion 41 and a positioning portion 42, which is connected to the upper end of the positioning portion 42 and located in the intake chamber S4, and the lower end of the positioning portion 42 and the positioning hole
  • the valve piece portion 41 covers the air inlet 31.
  • the valve piece portion 41 may be generally configured as a sheet body having a circular arc surface, and the center of the valve piece portion 41 is convex toward the direction of the sound absorbing member 2, and the cross-sectional shape and size of the valve piece portion 41 are respectively different from the first
  • the cross-sectional shape and size of the intake groove 33 are the same, so that the valve piece portion 41 can completely cover the three intake ports 31.
  • the positioning portion 42 extends vertically downward from the lower end surface of the valve piece portion 41, and the lower portion of the positioning portion 42 has a substantially spherical positioning ball 43.
  • a gas such as air may enter the intake port 31 from the bottom up to open the valve piece portion 41 upward so that gas can enter the intake chamber S4.
  • the number and shape of the air inlets 31 can also be set according to actual requirements to better meet the actual requirements.
  • the air pump 100 further includes: a valve seat silencer chamber S7 formed on the valve seat 3, and the valve seat silence chamber S7 communicates with the intake chamber S4 to flow out of the intake chamber At least a portion of the gas of S4 flows into the valve seat muffler chamber S7.
  • the top of the valve seat 3 is formed with a downwardly recessed valve seat muffling groove 36, and the valve seat muffling groove 36 and the bottom wall of the muffler 2 together define a valve seat muffler chamber S7, the side wall of the valve seat muffler chamber S7
  • An opening S71 communicating with the communication passage S6 is formed thereon, so that a part of the gas in the communication passage S6 can enter the valve seat muffler chamber S7 from the opening S71, and the gas in the valve seat muffler chamber S7 can also flow into and out through the communication passage S6.
  • the cavity S5, so that the valve seat muffler chamber S7 can function as a buffer gas.
  • the number of the intake chamber S4, the valve seat muffler chamber S7, and the communication passage S6 are equal.
  • the intake chamber S4, the valve seat silencer chamber S7 and the communication passage S6 are all three, and each intake chamber S4 passes through a communication passage S6 and a valve seat silence chamber S7 and an outlet chamber S5, respectively. Connected.
  • the cross-sectional area of the muffler 2 is equal to the cross-sectional area of the upper cover 1.
  • the outer diameter of the muffler 2, the outer diameter of the upper cover 1, and the outer diameter of the valve seat 3 are equal, and the muffler 2, the upper cover 1 and the valve can be screwed by the fasteners.
  • the seats 3 are fixed together to facilitate installation, and the structure of the air pump 100 is simple.
  • the present invention is not limited thereto, and the cross-sectional area of the muffler 2 may be smaller than the cross-sectional area of the upper cover 1.
  • the upper cover 1 and the valve seat 3 The accommodation space can be defined between, and the sound absorbing member 2 is disposed in the accommodating space (not shown), so that material can be saved.
  • the valve plate 4 covering the air inlet 31 is upwardly opened, and the gas first enters the air inlet chamber S4, and then flows into the valve seat silencer chamber S7 and the air outlet chamber S5 through the communication passage S6, respectively, and then The gas in the outlet chamber S5 is discharged into the intake passage S1 along the communication hole 21, and then the gas in the intake passage S1 sequentially flows through the first intake passage segment S11, the second intake passage segment S13, and the third feed.
  • the gas passage section S15 flows into the muffler chamber S3, and then the gas in the muffler chamber S3 flows into the outlet passage S2, and finally is discharged from the air outlet port 11 of the upper cover 1.
  • the flow path of the gas from entering the valve seat 3 to flowing out of the upper cover 1 is long and complicated, for example, the paths of the intake passage S1 and the outlet passage S2 are long, and the flow path from the intake chamber S4 to the outlet chamber S5 is longer. Complex, so that effective noise reduction can be achieved.
  • the volume of the muffler chamber S3 is larger than the volume of the intake passage S1 and the volume of the outlet passage S2, the gas can alternately flow in the large and small cavities to effectively change the flow rate and pressure of the gas, further reducing noise.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or integrated; can be directly connected, or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements.
  • an intermediate medium which can be the internal communication of two elements or the interaction of two elements.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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  • General Engineering & Computer Science (AREA)
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Abstract

一种气泵（100），包括形成有出气口（11）的上盖（1）、形成有进气口（31）的阀座（3）、阀片（4）以及消音件（2），阀座（3）设在上盖（1）的底部，阀片（4）可移动地设在进气口（31）处，消音件（2）设在上盖（1）与阀座（3）之间，消音件（2）上形成有与进气口（31）连通的连通孔（21），消音件（2）与上盖（1）之间限定出进气通道（S1）、消音腔（S3）和出气通道（S2），进气通道（S1）与连通孔（21）连通，出气通道（S2）与出气口（11）连通，进气通道（S1）和出气通道（S2）通过消音腔（S3）连通。所述气泵的气体流动路径长且复杂，气体在大、小腔内交替流动，降低了工作噪音。

Description

气泵 技术领域
本发明涉及气泵设备领域，具体而言，特别涉及一种气泵。
背景技术
微型气泵广泛应用于医疗器械、汽车座椅等领域，例如血压计、按摩椅等，然而，相关技术中的气泵在工作过程中容易产生噪音，降低了产品的品质。
发明内容
本发明旨在至少在一定程度上解决现有技术中的上述技术问题之一。
有鉴于此，本发明需要提供一种气泵，所述气泵的工作噪音低。
根据本发明提供的气泵，包括：上盖，所述上盖上形成有出气口；阀座，所述阀座设在所述上盖的底部，所述阀座上形成有进气口；阀片，所述阀片可移动地设在所述进气口处以打开和关闭所述进气口；以及消音件，所述消音件设在所述上盖与所述阀座之间，所述消音件上形成有与所述进气口连通的连通孔，所述消音件与所述上盖之间限定出进气通道、消音腔和出气通道，所述进气通道与所述连通孔连通，所述出气通道与所述出气口连通，且所述进气通道和所述出气通道通过所述消音腔连通。
根据本发明的实施例的气泵，由于气体从进入阀座到排出上盖的过程中需要顺次流经进气通道、消音腔和出气通道，从而可以延长气体的流动路径，进而降低了气体的流动噪音和气泵的整体噪音。
另外，根据本发明上述实施例的气泵还可以具有如下附加的技术特征：
根据本发明的一个示例，所述消音件的上表面上形成有凹槽，所述凹槽的底壁上设有凸台，所述凸台、所述凹槽和所述上盖之间限定出所述消音腔，所述进气通道和所述出气通道形成在所述凸台的上表面且间隔开分布。
根据本发明的一个示例，所述进气通道和所述出气通道均沿直线和/或曲线延伸。
根据本发明的一个示例，所述进气通道依次包括位于所述凸台内侧的进气口、依次相连的多个环形通道和位于所述凸台外侧的出气口，其中，位于所述进气通道的上游侧的环形通道的出口端与位于所述进气通道的下游侧的环形通道的进口端相连接。
根据本发明的一个示例，所述出气通道依次包括位于所述凸台外侧的进气口、环形通道、直线通道和位于所述凸台内侧的出气口，其中，位于所述出气通道的上游侧的环形通道的出口端与位于所述出气通道的下游侧的直线通道的进口端相连接。
根据本发明的一个示例，所述进气通道包括从内到外间隔开分布的多个进气通道段，相邻的两个所述进气通道段连接，且所述多个进气通道段的连接处在从内到外的方向上交错 布置，所述多个进气通道段为同心设置的圆弧段或椭圆弧段。
根据本发明的一个示例，所述凸台设在所述消音件的中心处且与所述凹槽的侧壁彼此间隔开。
根据本发明的一个示例，所述阀座与所述消音件之间限定出进气腔和出气腔，所述进气腔与所述进气口连通，所述出气腔与所述连通孔连通，所述进气腔和所述出气腔通过连通通道连通。
根据本发明的一个示例，所述气泵进一步包括：阀座消音腔，所述阀座消音腔形成在所述阀座上，所述阀座消音腔与所述进气腔连通以使流出所述进气腔的气体中的至少部分流入所述阀座消音腔内。
根据本发明的一个示例，所述进气腔为多个且所述多个进气腔沿周向间隔开分布。
根据本发明的一个示例，所述消音件的横截面积与所述上盖的横截面积相等。
根据本发明的一个示例，所述上盖与所述阀座之间限定出容纳空间，所述消音件设在所述容纳空间内。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
图1是根据本发明实施例的气泵的爆炸图；
图2是图1中所示的气泵装配后的剖面图；
图3是图1中所示的上盖的立体图；
图4是图3中所示的上盖的仰视图；
图5是沿图4中A-A线的剖面图；
图6是图1中所示的消音件的立体图；
图7是图6中所示的消音件的俯视图；
图8是图1中所示的阀座的立体图；
图9是图8中所示的阀座的俯视图。
附图标记：
100：气泵；
1：上盖；11：出气口；12：第一凸台；13：第一凹槽；
2：消音件；21：连通孔；22：凸台；23：凹槽；
3：阀座；31：进气口；32：定位孔；
       33：进气槽；34：出气槽；35：连通通道槽；36：阀座消音槽；
4：阀片；41：阀片部；42：定位部；43：定位球；
S1：进气通道；S11：第一进气通道段；S12：第一过渡段；
              S13：第二进气通道段；S14：第二过渡段；S15：第三进气通道段；
S2：出气通道；S21：第一出气通道段；S22：第二出气通道段；S23：出气过渡段；
S3：消音腔；S4：进气腔；S5：出气腔；S6：连通通道；
S7：阀座消音腔；S71：开口。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下文的公开提供了许多不同的实施例或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或字母。这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施例和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的可应用于性和/或其他材料的使用。
下面参考图1-图9描述根据本发明实施例的气泵100。
如图1所示，根据本发明实施例的气泵100，包括：上盖1、阀座3、阀片4以及消音件2。
具体地，如图1和图2所示，阀座3设在上盖1的底部，消音件2设在上盖1与阀座3之间，上盖1上形成有出气口11，阀座3上形成有进气口31，消音件2上形成有与进气口31连通的连通孔21，阀片4可移动地设在进气口31处以打开和关闭进气口31，消音件2与上盖1之间限定出进气通道S1、消音腔S3和出气通道S2，进气通道S1与连通孔21连通，出气通道S2与出气口11连通，且进气通道S1和出气通道S2通过消音腔S3连通。
这里，需要说明的是，“进气口31”仅针对阀座3的进气而言，而非暗示气泵100整体的进气口，“出气口11”仅针对上盖1的出气而言，而非暗示气泵100整体的出气口。
如图1和图2所示，上盖1、消音件2以及阀座3按照从上到下的顺序连接，其中，上盖1与消音件2共同限定出上气体容纳腔，上气体容纳腔包括顺次连通的进气通道S1、消音腔S3和出气通道S2，消音件2与阀座3共同限定出下气体容纳腔(例如可以包括下文所述的进气腔S4、出气腔S5、连通通道S6以及阀座消音腔S7)，进气口31与下气体容纳腔连通以向下气体容纳腔内供入气体，出气口11与上气体容纳腔连通，以将上气体容纳腔内的气体排出，上气体容纳腔与下气体容纳腔通过消音件2上的连通孔21连通，以使下气体容纳腔内的气体排入上气体容纳腔内。
这样，气体例如空气可以从进气口31处流入阀座3与消音件2之间的下气体容纳腔内，然后通过连通孔21流入上气体容纳腔，在上气体容纳腔内顺次流经进气通道S1、消音腔S3和出气通道S2，最终从出气口11排出上盖1。由此，可以延长和复杂化气体的流动路径，增加噪音损失，进而有效地降低了气体的流动噪音和气泵100的整体噪音。
根据本发明实施例的气泵100，由于气体从进入阀座3到排出上盖1的过程中需要顺次 流经进气通道S1、消音腔S3和出气通道S2，从而可以延长气体的流动路径，进而降低了气体的流动噪音和气泵100的整体噪音。
另外，需要说明的是，根据本发明实施例的气泵100的其他构成例如气囊(图未示出)等以及气泵100的操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本发明的一个实施例中，消音件2的上表面上形成有向下凹入的凹槽23，凹槽23的底壁上设有凸台22，凸台22、凹槽23和上盖1之间限定出消音腔S3。如图3和图6所示，凹槽23从消音件2的上表面向下凹入而成，凸台22从凹槽23的底壁向上凸出而成，其中凸台22可以设在消音件2的中心处，且凸台22可以与凹槽23的侧壁彼此间隔开，相应地，上盖1的下表面上形成有向上凹入的第一凹槽13，第一凹槽13的底壁上设有第一凸台12，第一凸台12从第一凹槽13的底壁向下凸出而成，其中第一凸台12可以设在上盖1的中心处，且第一凸台12可以与第一凹槽13的侧壁彼此间隔开。
参照图3、图6和图7，凹槽23与第一凹槽13的横截面形状、尺寸分别相同，且凹槽23与第一凹槽13上下正对，凸台22与第一凸台12的横截面形状、尺寸分别相同，且凸台22与第一凸台12上下正对，当上盖1与消音件2装配到位后，凹槽23与第一凹槽13共同限定出消音腔S3，此时凸台22与第一凸台12的外周壁可以理解为消音腔S3的内周壁，凹槽23与第一凹槽13的侧壁可以理解为消音腔S3的外周壁。
其中，消音件2和上盖1装配后可以具有同轴的中心轴线，“内”可以理解为朝向中心轴线的一侧，其相反的一侧被定义为“外”，即远离中心轴线的一侧。
进一步地，参照图6和图7，进气通道S1和出气通道S2形成在凸台22的上表面且间隔开分布，例如，进气通道S1和出气通道S2可以分别自凸台22的上表面向下凹入而成，当上盖1与消音件2配合到位后，第一凸台12可以将进气通道S1和出气通道S2的顶部密封，其中，进气通道S1的进气口端与连通孔21相连通，进气通道S1的出气口端与消音腔S3相连通，出气通道S2的进气口端与消音腔S3相连通，出气通道S2的出气口端与出气口11相连通。其中，上盖1与消音件2的接触面可以通过超音波熔接技术连接在一起。
可选地，进气通道S1可以沿直线延伸，也可以沿曲线延伸，还可以部分沿直线延伸、部分沿曲线延伸，出气通道S2可以沿直线延伸，也可以沿曲线延伸，还可以部分沿直线延伸、部分沿曲线延伸。例如在图7的示例中，进气通道S1可以自圆台形凸台22的中心处向凸台22的外缘蜿蜒延伸，出气通道S2可以自圆形凸台22的外缘向凸台22的中心处蜿蜒延伸。由此，可以有效地延长出气通道S2和进气通道S1的长度，有效地降低排气噪音。
参照图7，进气通道S1依次包括位于凸台22内侧(即靠近中心的一侧)的进气口、依次相连的多个环形通道和位于凸台22外侧的出气口，其中，位于进气通道S1的上游侧的环形通道的出口端与位于进气通道S1的下游侧的环形通道的进口端相连接。这里，需要说明的是，“进气通道S1的上游”指的是流经进气通道S1的流体的流动方向的上游。“进气通道S1的下游”指的是流经进气通道S1的流体的流动方向的下游。具体地，进气通道S1包括从内到外间隔开分布的多个进气通道段，相邻的两个进气通道段连接，且多个进气通道段的连接处在从内到外的方向上交错布置。例如在图7的示例中，进气通道S1可以包括 三个进气通道段，分别为第一进气通道段S11、第二进气通道段S13和第三进气通道段S15，其中第一进气通道段S11、第二进气通道段S13和第三进气通道段S15分别沿同轴的圆弧线延伸，且构造为同心设置的圆弧段，第一进气通道段S11、第二进气通道段S13和第三进气通道段S15的延伸线自内向外间隔开。当然，本发明不限于此，每个进气通道S1段还可以构造为椭圆弧段或者直线段等。
如图7所示，第一进气通道段S11与第二进气通道段S13通过第一过渡段S12连接，第二进气通道段S13与第三进气通道段S15通过第二过渡段S14连接，由于第一过渡段S12和第二过渡段S14分别位于第二进气通道段S13的两端，从而第一过渡段S12与第二过渡段S14交错布置，且由于与第一过渡段S12相连的第一进气通道S1位于与第二过渡段S14相连的第三进气通道S1的内侧，从而第一过渡段S12与第二过渡段S14内外间隔开。这里，需要说明的是，进气通道S1的数量和形状还可以根据实际要求设置，以更好地满足实际要求。
具体地，参照图7，第一进气通道段S11的内端与连通孔21相通，第三进气通道段S15的外端与消音腔S3相连通，从而从连通孔21进入进气通道S1内的气体可以顺次流经第一进气通道段S11、第二进气通道段S13和第三进气通道段S15，最终排入消音腔S3内。
参照图7，出气通道S2依次包括位于凸台22外侧(即远离中心的一侧)的进气口、环形通道、直线通道和位于凸台22内侧的出气口，其中，位于出气通道S2的上游侧的环形通道的出口端与位于出气通道S2的下游侧的直线通道的进口端相连接。这里，需要说明的是，“出气通道S2的上游”指的是流经进气通道S2的流体的流动方向的上游。“出气通道S2的下游”指的是流经进气通道S2的流体的流动方向的下游。具体地，参照图7，出气通道S2可以包括两个出气通道段，分别为第一出气通道段S21和第二出气通道段S22，其中第一出气通道段S21构造为直线段，第二出气通道段S22构造为圆弧段，第一出气通道段S21位于第二出气通道段S22的内侧，且第一出气通道段S21与第二出气通道段S22通过出气过渡段S23连接。
如图4和图7所示，出气口11沿上下方向贯穿上盖1的中心轴线处，且出气口11的下端与第一出气通道段S21的内端相连通，第二出气通道段S22的外端与消音腔S3相连通，从而从消音腔S3进入第二出气通道S2内的气体可以顺次流经第二出气通道段S22和第一出气通道段S21，最终从出气口11排入上盖1。这里，需要说明的是，出气通道S2的数量和形状还可以根据实际要求设置，以更好地满足实际要求。
在本发明的一个实施例中，如图2所示，阀座3与消音件2之间限定出进气腔S4和出气腔S5，进气腔S4与进气口31连通，出气腔S5与连通孔21连通，进气腔S4和出气腔S5通过连通通道S6连通。如图8和图9所示，阀座3的顶部形成有向下凹入的进气槽33，进气槽33与消音件2的底壁共同限定出进气腔S4，阀座3的顶部形成有向下凹入的出气槽34，出气槽34与消音件2的底壁共同限定出出气腔S5，阀座3的顶部形成有向下凹入的连通通道槽35，连通通道槽35与消音件2的底壁共同限定出连通通道S6，连通通道S6的两端分别于进气腔S4和出气腔S5相连通，其中出气腔S5与连通孔21上下正对，从而出气 腔S5内的气体可以沿着连通孔21向上流动。
其中，进气腔S4可以为多个，且多个进气腔S4沿周向间隔开分布。例如在图8和图9的示例中，消音件2与阀座3共同限定出三个进气腔S4，且三个进气腔S4均匀地分布在中心轴线的周向上，且每个进气腔S4的结构均相同，例如均可以构造为圆柱形腔体。当然，本发明不限于此，进气腔S4的结构和数量还可以根据实际要求设置，以更好地满足实际要求。
如图8和图9所示，进气槽33的底壁向上形成一凸台，凸台的顶面形成有至少一个进气口31，进气槽33的底壁上形成有与进气口31间隔开的定位孔32。可选地，进气口31为多个且多个进气口31沿定位孔32的周向间隔分布。例如在图8的示例中，进气槽33的底壁的中心处形成有一个定位孔32，定位孔32可以构造为圆孔，且沿上下方向贯穿进气槽33的底壁，定位孔32的周向上均匀地分布有三个进气口31，三个进气口31也分别沿上下方向贯穿进气槽33的底壁。
相应地，参照图1和图2，阀片4包括阀片部41和定位部42，阀片部41连接在定位部42的上端且位于进气腔S4内，定位部42的下端与定位孔32配合，阀片部41覆盖在进气口31上。具体地，阀片部41可以大体构造为具有圆弧面的片体，且阀片部41的中心朝向消音件2的方向凸出，且阀片部41的横截面形状、尺寸分别与第一进气槽33的横截面形状、尺寸相同，从而阀片部41可以将三个进气口31完全覆盖住。
进一步地，参照图2，定位部42从阀片部41的下端面竖直向下延伸，且定位部42的下部具有大体圆球形的定位球43。
如图2所示，气泵100在工作的过程中，气体例如空气，可以自下向上进入进气口31，以将阀片部41向上顶开，使得气体可以进入进气腔S4内。其中，进气口31的数量和形状还可以根据实际要求设置，以更好地满足实际要求。
进一步地，参照图8和图9，气泵100进一步包括：阀座消音腔S7，阀座消音腔S7形成在阀座3上，阀座消音腔S7与进气腔S4连通以使流出进气腔S4的气体中的至少部分流入阀座消音腔S7内。具体地，阀座3的顶部形成有向下凹入的阀座消音槽36，阀座消音槽36与消音件2的底壁共同限定出阀座消音腔S7，阀座消音腔S7的侧壁上形成有与连通通道S6相连通的开口S71，从而连通通道S6内的部分气体可以从开口S71进入阀座消音腔S7内，且阀座消音腔S7内的气体还可以通过连通通道S6流入出气腔S5内，从而阀座消音腔S7可以起到缓冲气体的效果。
可选地，进气腔S4、阀座消音腔S7以及连通通道S6的数量相等。参照图8和图9，进气腔S4、阀座消音腔S7以及连通通道S6均为三个，且每个进气腔S4分别通过一个连通通道S6与一个阀座消音腔S7以及出气腔S5相连通。
可选地，消音件2的横截面积与上盖1的横截面积相等。如图2所示，消音件2的外缘直径、上盖1的外缘直径以及阀座3的外缘直径均相等，此时可以通过螺纹紧固件将消音件2、上盖1以及阀座3固定在一起，从而便于安装，且气泵100的结构简单。当然，本发明不限于此，消音件2的横截面积还可以小于上盖1的横截面积，此时，上盖1与阀座3 之间可以限定出容纳空间，消音件2设在容纳空间内(图未示出)，从而可以节省材料。
下面参照图1-图9简要描述根据本发明一个实施例的气泵100的排气工作过程，其中图3、图4、图6以及图7中所示的箭头用于指示气体的流动方向。
气泵100排气时，覆盖在进气口31上的阀片4被向上顶开，气体首先进入进气腔S4内，然后通过连通通道S6分别流入阀座消音腔S7和出气腔S5内，然后出气腔S5内的气体沿着连通孔21排出到进气通道S1内，接着进气通道S1内的气体顺次流经第一进气通道段S11、第二进气通道段S13和第三进气通道段S15后流入消音腔S3内，然后消音腔S3内的气体再流入出气通道S2内，最终从上盖1的出气口11排出。
其中，由于气体从进入阀座3到流出上盖1的流动路径即长又复杂，例如进气通道S1和出气通道S2的路径较长，且从进气腔S4到出气腔S5的流通路径较复杂，从而可以实现有效地降噪效果。另外，由于消音腔S3的容积大于进气通道S1的容积和出气通道S2的容积，从而气体可以在大、小腔内交替流动，以有效地改变气体的流速和压力，进一步降低噪声。
在本发明的描述中，需要理解的是，术语“中心”、“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性 表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (12)

  1. 一种气泵，其特征在于，包括：
    上盖，所述上盖上形成有出气口；
    阀座，所述阀座设在所述上盖的底部，所述阀座上形成有进气口；
    阀片，所述阀片可移动地设在所述进气口处以打开和关闭所述进气口；以及
    消音件，所述消音件设在所述上盖与所述阀座之间，所述消音件上形成有与所述进气口连通的连通孔，所述消音件与所述上盖之间限定出进气通道、消音腔和出气通道，所述进气通道与所述连通孔连通，所述出气通道与所述出气口连通，且所述进气通道和所述出气通道通过所述消音腔连通。
  2. 根据权利要求1所述的气泵，其特征在于，所述消音件的上表面上形成有凹槽，所述凹槽的底壁上设有凸台，所述凸台、所述凹槽和所述上盖之间限定出所述消音腔，所述进气通道和所述出气通道形成在所述凸台的上表面且间隔开分布。
  3. 根据权利要求2所述的气泵，其特征在于，所述进气通道和所述出气通道均沿直线和/或曲线延伸。
  4. 根据权利要求3所述的气泵，其特征在于，所述进气通道依次包括位于所述凸台内侧的进气口、依次相连的多个环形通道和位于所述凸台外侧的出气口，其中，位于所述进气通道的上游侧的环形通道的出口端与位于所述进气通道的下游侧的环形通道的进口端相连接。
  5. 根据权利要求3或4所述的气泵，其特征在于，所述出气通道依次包括位于所述凸台外侧的进气口、环形通道、直线通道和位于所述凸台内侧的出气口，其中，位于所述出气通道的上游侧的环形通道的出口端与位于所述出气通道的下游侧的直线通道的进口端相连接。
  6. 根据权利要求3所述的气泵，其特征在于，所述进气通道包括从内到外间隔开分布的多个进气通道段，相邻的两个所述进气通道段连接，且所述多个进气通道段的连接处在从内到外的方向上交错布置，所述多个进气通道段为同心设置的圆弧段或椭圆弧段。
  7. 根据权利要求2-6中任一项所述的气泵，其特征在于，所述凸台设在所述消音件的中心处且与所述凹槽的侧壁彼此间隔开。
  8. 根据权利要求1-7中任一项所述的气泵，其特征在于，所述阀座与所述消音件之间限定出进气腔和出气腔，所述进气腔与所述进气口连通，所述出气腔与所述连通孔连通，所述进气腔和所述出气腔通过连通通道连通。
  9. 根据权利要求8所述的气泵，其特征在于，进一步包括：
    阀座消音腔，所述阀座消音腔形成在所述阀座上，所述阀座消音腔与所述进气腔连通以使流出所述进气腔的气体中的至少部分流入所述阀座消音腔内。
  10. 根据权利要求8或9所述的气泵，其特征在于，所述进气腔为多个且所述多个进气 腔沿周向间隔开分布。
  11. 根据权利要求1-10中任一项所述的气泵，其特征在于，所述消音件的横截面积与所述上盖的横截面积相等。
  12. 根据权利要求1-11中任一项所述的气泵，其特征在于，所述上盖与所述阀座之间限定出容纳空间，所述消音件设在所述容纳空间内。
PCT/CN2015/079326 2014-09-12 2015-05-19 气泵 WO2016037493A1 (zh)

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