CN207323803U - Noise-decreasing device and lung ventilator for lung ventilator - Google Patents
Noise-decreasing device and lung ventilator for lung ventilator Download PDFInfo
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- CN207323803U CN207323803U CN201621455930.7U CN201621455930U CN207323803U CN 207323803 U CN207323803 U CN 207323803U CN 201621455930 U CN201621455930 U CN 201621455930U CN 207323803 U CN207323803 U CN 207323803U
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Abstract
The utility model provides a kind of noise-decreasing device and lung ventilator for lung ventilator.The noise-decreasing device includes housing and wind turbine cabin.The first air inlet and the first gas outlet are provided with the housing.The wind turbine cabin is disposed in the housing, and multiple second air inlets connected with first air inlet are provided with the wind turbine cabin.Noise-decreasing device according to the present utility model can effectively comb the air-flow for entering wind engine room inside, make air-flow more smooth, avoid the generation of turbulent flow or vortex, reduce noise during noise-decreasing device operation.
Description
Technical field
The utility model is related to the field of medical instrument technology, and in particular, to a kind of noise-decreasing device for lung ventilator and
Lung ventilator.
Background technology
In recent years, with electronic computer technology, the rapid development of sensing technology and the continuous depth to breathing mechanics understanding
Enter, home ventilator has a great development.In addition to common respiratory disorder, roar to acute respiratory distress syndrome, severe
Asthma and chronic obstructive pulmonary disease exhale the therapeutic strategy for the symptom such as decline all to have very big change than before, have started the brand-new of mechanical ventilation treatment
Situation.
Blower fan apparatus is an important component of lung ventilator.Blower fan apparatus can be used for producing the gas for breathing
Body, so that patient uses.The blower fan apparatus air turbulence of lung ventilator on the market at present, easily produces turbulent flow or vortex etc. and asks
Topic, and noise is big.
It is therefore desirable to propose a kind of noise-decreasing device and lung ventilator for lung ventilator, to solve existing skill at least in part
Problem present in art.
Utility model content
In order to solve the problems, such as the air turbulence of the blower fan apparatus of lung ventilator existing in the prior art, the utility model carries
For a kind of noise-decreasing device for lung ventilator.The noise-decreasing device includes housing and wind turbine cabin.Is provided with the housing
One air inlet and the first gas outlet.The wind turbine cabin is disposed in the housing, is provided with the wind turbine cabin and described first
Multiple second air inlets of air inlet connection.Wherein, the multiple second air inlet is arranged in spraying head type.
Exemplarily, the multiple second air inlet is arranged on the top in the wind turbine cabin.
Exemplarily, the multiple second air inlet is of the same size and equably arranges.
Exemplarily, the direction that each cross-sectional area of the multiple second air inlet is flowed along gas gradually increases
Add.
Exemplarily, the noise-decreasing device further comprises more conducting devices with multiple air ventilation passages, described
More conducting devices are arranged between first air inlet and the multiple second air inlet, with connect first air inlet and
The multiple second air inlet.
Exemplarily, more conducting devices further comprise supporting part, and the supporting part is connected to the interior of the housing
Wall, the multiple air ventilation passage are connected to the supporting part, to be supported on the supporting part.
Exemplarily, the supporting part is partition plate, and the enclosure interior is separated into first chamber and second by the partition plate
Chamber, wherein the first chamber is connected with first air inlet, the second chamber connects with the multiple second air inlet
Logical, the both ends of the multiple air ventilation passage in the first chamber and the second chamber and protrude from described respectively
Supporting part.
Exemplarily, the spiral helicine flow-guiding channel formed by fuisw rib is provided with the inner wall of the housing, it is described to lead
The inlet end of circulation road is connected with more conducting devices, and the outlet side of the flow-guiding channel connects with the multiple second air inlet
It is logical.
Exemplarily, barriers are provided with the outside of first air inlet, between the barriers and first air inlet
Separate and cover at least a portion of first air inlet.
Exemplarily, the noise-decreasing device further comprises filtration members, and the filtration members are arranged on first air inlet
Place.
Exemplarily, the noise-decreasing device further comprises being arranged on shunting muscle and/or the sound-absorbing in gas flow paths
Component.
The utility model also provides a kind of lung ventilator.The lung ventilator includes a kind of any of the above described noise-decreasing device.
Multiple second air inlets are provided with the wind turbine cabin of noise-decreasing device, therefore can effectively comb and enter wind turbine cabin
Internal air-flow, makes air-flow more smooth, avoids the generation of turbulent flow or vortex, reduces noise during noise-decreasing device operation.
A series of concept of reduced forms is introduced in utility model content, this will in specific embodiment part into
One step describes in detail.The utility model content part is not meant to attempt the pass for limiting technical solution claimed
Key feature and essential features, do not mean that the protection domain for attempting to determine technical solution claimed more.
Below in conjunction with attached drawing, the advantages of describing the utility model in detail and feature.
Brief description of the drawings
The drawings below of the utility model is used to understand the utility model in this as the part of the utility model.Attached drawing
In show the embodiment and its description of the utility model, for explaining the principle of the utility model.In the accompanying drawings,
Fig. 1 is the decomposition diagram according to the noise-decreasing device of one exemplary embodiment of the utility model；
Fig. 2 is the upper shell of noise-decreasing device and the schematic diagram of middle casing shown in Fig. 1；
Fig. 3 is the schematic diagram of the lower housing shell of the noise-decreasing device shown in Fig. 1；
Fig. 4 is the sectional view of the noise-decreasing device shown in Fig. 1；
Fig. 5 is the partial sectional view at the first air inlet of the noise-decreasing device shown in Fig. 1；
Fig. 6 is the schematic perspective view of more conducting devices of the noise-decreasing device shown in Fig. 1；
Fig. 7 is the gas flow schematic diagram inside the noise-decreasing device according to an exemplary embodiment of the utility model；
And
Fig. 8 is the noise transmission schematic diagram inside the noise-decreasing device according to an exemplary embodiment of the utility model.
Embodiment
In the following description, there is provided substantial amounts of details is so as to thoroughly understand the utility model.However, ability
Field technique personnel will be seen that, the preferred embodiment described below for exemplarily only showing the utility model, the utility model
It may not need details as one or more and be carried out.In addition, in order to avoid obscuring with the utility model, for
Some technical characteristics well known in the art are not described in detail.
The utility model provides a kind of noise-decreasing device (hereinafter referred to as " noise-decreasing device ") for lung ventilator.Such as institute in Fig. 1
Show, noise-decreasing device 100 can mainly include housing 110 and wind turbine cabin 120.Wind turbine cabin 120 can be used for accommodating wind turbine 130.
It is described in detail below in conjunction with Fig. 1-8 pairs of noise-decreasing devices 100 and its all parts provided by the utility model.
As shown in fig. 1, in an exemplary embodiment of the utility model, the housing 110 of noise-decreasing device 100 can
With including upper shell 111, middle casing 112 and lower housing shell 113.Upper shell 111 and lower housing shell 113 are mounted respectively to middle casing
112 opposite both ends, therefore upper shell 111, middle casing 112 and lower housing shell 113 together form for accommodating noise abatement dress
Put the cavity of 100 internals (all wind turbine cabin 120 and wind turbine 130 as will be described).As an example, upper shell
111 and lower housing shell 113 at least one middle casing can be detachably mounted to by modes such as threaded fasteners
112, in order to install and safeguard the internals of noise-decreasing device 100.It is optional in order to ensure the sealing performance inside housing 110
Ground, first seal is respectively arranged between upper shell 111 and middle casing 112 and between middle casing 112 and lower housing shell 113
116 and second seal 117.First seal 116 and second seal 117 can be the elasticity by rubber, silica gel etc.
The sealing ring that material is formed, the opposite both ends that its shape can be respectively with middle casing 112 match.In the another of the utility model
In a exemplary embodiment, middle casing 112 can be omitted or whole housing can be integrated.
It can be provided with housing 110 for the first air inlet 114 of extraneous gas entrance and for discharging for patient
First gas outlet 115 of the gas (such as gas of compression) used.In the exemplary embodiment of the utility model, first into
Gas port 114 can be arranged on lower housing shell 113, and the first gas outlet 115 can be arranged in middle casing 112.In the utility model
Another exemplary embodiment in, the first air inlet 114 and the first gas outlet 115 can be separately positioned on appointing for housing 110
At what suitable other positions.
Wind turbine cabin 120 is provided with housing 110.In an exemplary embodiment of the utility model, such as Fig. 1, Fig. 3 and
Shown in Fig. 4, wind turbine cabin 120 is located inside lower housing shell 113 and middle casing 112.In another exemplary reality of the utility model
Apply in example, wind turbine cabin 120, which can also be only located at the inside of lower housing shell 113 or a part of of wind turbine cabin 120, can also stretch into upper casing
Inside body 111.Multiple second air inlets connected with the first air inlet 114 on housing 110 are provided with wind turbine cabin 120
121.Multiple second air inlets 121 can be in that spraying head type is arranged, therefore multiple second air inlets are referred to as " spraying head type air inlet
Mouthful ".It should be noted that two components that herein referred " connection " refers to communicate with each other (such as the first air inlet 114 and more
A second air inlet 121) in fluid (gas or liquid) another can be flowed into from any one in described two components.Institute
It can directly connect to state two components, i.e. do not have miscellaneous part between two components.Described two components can also be indirect
Connect, i.e., there can also be the miscellaneous part for not hindering fluid to flow between described two components.Gas from the first air inlet 114
Body can be entered in wind turbine cabin 120 by multiple second air inlets 121 of spraying head type.
Wind turbine cabin 120 is used to accommodate wind turbine 130.Wind turbine 130 can be any suitable type such as centrifugal blower, axial flow blower
Wind turbine.Wind turbine 130 can mainly include the component such as rotor block 132 and impeller (not shown).132 impeller of rotor block is along suitable
Clockwise rotates in an anti-clockwise direction.In the process, rotor block 132 can produce substantial amounts of heat.In addition, art technology
Personnel are appreciated that wind turbine 130 can also include some other conventional components (spiral case etc.).Due to wind turbine 130
Structure is well known to those skilled in the art, therefore does not show the detailed construction of wind turbine 130 herein.Set on wind turbine 130
There is the second gas outlet 131 connected with the first gas outlet 115.
When noise-decreasing device 100 works, extraneous gas can enter housing by the first air inlet 114 on housing 110
Multiple second air inlets 121 of 110 inside and the spraying head type by being connected with the first air inlet 114 enter wind turbine cabin 120
It is internal.The gas entered inside wind turbine cabin 120 passes sequentially through what is communicated with each other after the impeller speedup supercharging of wind turbine 130
Second gas outlet 131 and the first gas outlet 115 are expelled to outside noise-decreasing device 100, so that patient uses.Due to wind turbine cabin 120
On be provided with multiple second air inlets 121 of spraying head type, therefore can effectively comb the gas entered inside wind turbine cabin 120
Stream, makes air-flow more smooth, avoids the generation of turbulent flow or vortex, reduces noise when noise-decreasing device 100 is run.
Multiple second air inlets 121 of spraying head type can be arranged at any suitable position in wind turbine cabin 120.Usually come
Say, the rotor block 132 of wind turbine 130 is arranged at the top of wind turbine 130.Correspondingly, alternatively, show at one of the utility model
In example property embodiment, as shown in Figures 1 and 2, multiple second air inlets 121 of spraying head type can be arranged on wind turbine cabin 120
At top 122.Gas from multiple second air inlets 121 can also be by wind turbine while 120 inside of wind turbine cabin is entered
Heat caused by 130 rotor block 132 is taken away, therefore can efficiently solve the heat dissipation problem of wind turbine 130 and will not increase
Add extra cost.Still optionally further, multiple second air inlets 121 can surround the rotor block 121 of wind turbine 120, more to have
Effect ground solves the heat dissipation problem of wind turbine 130.
Multiple second air inlets 121 of spraying head type can have any suitable shape, such as cylinder, triangular prism, more
Prism etc..Alternatively, in an exemplary embodiment of the utility model, multiple second air inlets 121 it is each transversal
The direction that face area is flowed along gas gradually increases.The big opening end of i.e. multiple second air inlets 121 is towards inside wind turbine cabin 120.
In this way, being conducive to the gas from multiple second air inlets 121 being dissipated into inside wind turbine cabin 120, make air-flow more steady suitable
Freely.
Alternatively, in an exemplary embodiment of the utility model, multiple second air inlets 121 can have phase
Same shape, such as multiple second air inlets 121 all can be circular.Still optionally further, multiple second air inlets 121 can be with
It is of the same size and equably arranges, so that air-flow is more smooth, further reduces making an uproar when noise-decreasing device 100 is run
Sound.
Alternatively, in an exemplary embodiment of the utility model, as shown in figs. 1-4, noise-decreasing device 100 may be used also
With including more conducting devices 140 with multiple air ventilation passages 141.Alternatively, multiple air ventilation passages 141 can be
One, in order to process, make and install more conducting devices 140.As needed, the section of multiple air ventilation passages 141 can
Think any suitable shape.In an exemplary embodiment of the utility model, the section of multiple air ventilation passages 141
It can be polygon.In another exemplary embodiment of the utility model, the section of multiple air ventilation passages 141 may be used also
Think any suitable shape such as circle.More conducting devices 140 be located in housing 110 and be arranged on housing 110 first into
Between gas port 114 and multiple second air inlets 121 of the spraying head type on wind turbine cabin 120, to connect the first air inlet 114 and shower
Multiple second air inlets 121 of formula.Gas i.e. from the first air inlet 114 can be reached multiple by more conducting devices 140
Second air inlet 121.
Shown in Fig. 7 from the gas inside the housing 110 that the first air inlet 114 enters noise-decreasing device 100 by leading more
Schematic diagram during exchange device 110, with the arrows showing the direction and path of gas flowing.It is exterior when noise-decreasing device 100 works
Gas can be entered inside housing 110 by the first air inlet 114 on housing 110, then passed through and the first air inlet
More conducting devices 140 of 114 connections are simultaneously entered inside wind turbine cabin 120 via multiple second air inlets 121 of spraying head type.When
When gas is by more conducting devices 140 with multiple air ventilation passages 141, more conducting devices 140 can be combed further
Air-flow so that air-flow is more smooth.In addition, more conducting devices 140 can also weaken noise.
The noise transmission schematic diagram inside the housing 110 of noise-decreasing device 100 is shown in Fig. 8, with the arrows showing make an uproar
The direction of transfer of sound and path.As shown in Figure 8, when noise transmits in housing 110 along the direction opposite with gas flowing,
The reflection and/or refraction of the inner wall of multiple air ventilation passages 141 of more conducting devices 140 can be run into, therefore can be weakened.
More conducting devices 140 can be substantially cylindrical in shape, its can be extended to from the first air inlet 114 multiple second into
Gas port 121, the one of the gas flow paths that can also be arranged only between the first air inlet 114 and multiple second air inlets 121
On part.In an exemplary embodiment of the utility model, as shown in Figure 6, more conducting devices 140 can also include using
In the supporting part 142 for supporting multiple air ventilation passages 141.Supporting part 142 is connected to the inner wall of housing 110.Alternatively, support
Portion 142 can be detachably connectable to the inner wall of housing 110.As an example, supporting part 142 can be removable by threaded fastener
It is connected to the inner wall of housing 110 with unloading.Supporting part 142 can be any suitable shape such as tabular, rod-shaped.Multiple gas circulations
Passage 141 is connected to supporting part 142, to be supported on supporting part 142.Supporting part 142 can be continuous member.For example, support
Through hole can be provided with portion 142.Multiple air ventilation passages 141 can be arranged in the through hole and be connected to branch
Support part 142.Supporting part 142 can also include multiple sub- supporting parts spaced apart.For example, supporting part 142 can include three sons
Supporting part, three sub- supporting parts are connected to housing 110 with being spaced 120 degree, and multiple air ventilation passages 141 are connected to three
Sub- supporting part.Supporting part 142 can support and fixed multiple air ventilation passages 141, avoids multiple air ventilation passages 141 from shaking
It is dynamic, so that air-flow is more smooth, avoid producing turbulent flow or vortex.
Alternatively, in an exemplary embodiment of the utility model, as shown in figs 6-8, supporting part 142 can be every
Plate, it will be separated into two chambers, i.e. first chamber 118 and second chamber 119 completely inside housing 110.Wherein, the first chamber
Room 118 is connected with the first air inlet 114, and second chamber 119 is connected with multiple second air inlets 121.Multiple air ventilation passages
141 both ends in first chamber 118 and second chamber 119 and protrude from supporting part 142 respectively, i.e., multiple gas streams are all
The both ends in road 141 are spaced a predetermined distance along the extending direction of air ventilation passage 141 with supporting part 142.As shown in Figure 7, subtract
When device 100 of making an uproar works, extraneous gas can enter the inside housing 110 by the first air inlet 114 on housing 110
In one chamber 118, then more conducting devices 140 are entered via one end being located in first chamber 118 of more conducting devices 140
In and via more conducting devices 140 be located at second chamber 119 in one end enter in second chamber 119, then pass through flower
Multiple second air inlets 121 for spilling formula are entered inside wind turbine cabin 120.As shown in Figure 8, noise along with gas flowing side
During spreading out of in the opposite direction, supporting part 142 can filter out a part of noise so that the partial noise is blocked on
Without being spread out of from the first air inlet 114 in second chamber 119, therefore noise can be weakened.Further, since more conducting devices
140 both ends protrude from supporting part 142, therefore, when noise is delivered to lead more in first chamber 118 and second chamber 119
During the outer wall of exchange device 140, a part of noise can be reflected and/or reflected by the outer wall of more conducting devices 140, therefore can be into one
Step weakens noise.
Alternatively, as shown in Figures 1 and 2, it is also provided with what is formed by fuisw rib 151 on the inner wall of housing 110
Flow-guiding channel 150.The inlet end of flow-guiding channel 150 is connected with more conducting devices 140, the outlet side of flow-guiding channel 150 and shower
Multiple second air inlets 121 of formula connect, by the gas from more conducting devices 140 guide to multiple the second of spraying head type into
Gas port 121.In an exemplary embodiment of the utility model, the flow-guiding channel 150 formed by fuisw rib 151 can be set
On the inner wall of the upper shell 111 of housing 110, with multiple second air inlets 121 on the top 122 corresponding to wind turbine cabin 120.
It will be understood by those skilled in the art that when multiple second air inlets 121 are arranged at the other positions in wind turbine cabin 120, water conservancy diversion
Passage 150 can also be arranged at the other positions on the inner wall of housing 110.The flow-guiding channel 150 formed by fuisw rib 151
Can in the shape of a spiral, it can be the spiral shape of spiral of Archimedes shape, involute shape or other any suitable types
Shape.Gas from more conducting devices 140 can be guided multiple second air inlets to wind turbine cabin 120 by flow-guiding channel 150
121, but also gas can be made more smooth on its flow path.
Alternatively, as shown in Fig. 1,4 and 5, the outside of the first air inlet 114 can be provided with barriers 190.Barriers
190 block at least a portion of the first air inlet 114 and are spaced apart with the first air inlet 114.On the one hand, extraneous gas can be with
First air inlet 114 is entered by the interval between the first air inlet 114 and barriers 190, and then enters noise-decreasing device 100
Housing 110 in.On the other hand, when noise is reached at the first air inlet 114 along the direction opposite with gas flow direction,
The obstruction of barriers 190 can be run into and reflected, therefore noise can be reduced.
Alternatively, noise-decreasing device 100 is also provided with filtration members 160.Alternatively, filtration members 160 can be by synthesizing
Filter cotton made of any suitable filtering material such as fiber, glass fibre, non-woven fabrics, activated carbon.Filtration members 160 can be set
At the first air inlet 114.In an exemplary embodiment of the utility model, filtration members 160 can be arranged on first into
The inner side of gas port 114, i.e. filtration members 160 can be located inside housing 110.In another exemplary embodiment of the utility model
In, filtration members 160 can be arranged on the outside of the first air inlet 114, i.e. filtration members 160 can be located at the outside of housing 110, so as to
In installation and replace filtration members 160.Alternatively, supporting item 161 can be provided between filtration members 160 and housing 110, with support
Filtration members 160 and filtration members 160 are spaced apart with housing 110, to increase air inlet area, reduce vapour lock.On the one hand, filter
Part 160 can prevent the fine particles such as dust, impurity from entering inside the housing 110 of noise-decreasing device 100, on the other hand, filtration members
160 can also absorb a part of noise, so as to weaken the noise come from the outflow of the first air inlet 114.
Alternatively, in an exemplary embodiment of the utility model, as shown in Figure 3, noise-decreasing device 100 can be with
Including the shunting muscle 170 being arranged in gas flow paths.Shunting muscle 170 can be arranged on any conjunction in gas flow paths
Put place in right position.As an example, in an exemplary embodiment of the utility model, shunting muscle 170 can be in lower housing shell 113
It is arranged in the gas flow paths between the first air inlet 114 and more conducting devices 140.Shunting muscle 170 can be combed further
Qi-regulating stream so that air-flow is more smooth, avoids producing turbulent flow or vortex.
Alternatively, in an exemplary embodiment of the utility model, noise-decreasing device 100 can also include Sound-absorbing member
180.Sound-absorbing member 180 can be made of any suitable sound-absorbing or sound-absorbing material.As an example, Sound-absorbing member 180 can be
Acoustical cotton being made of porous materials etc..Sound-absorbing member 180 can further weaken noise.Sound-absorbing member 180 can be arranged on
At any position in gas flow paths.As an example, in an exemplary embodiment of the utility model, in Fig. 4
Shown, Sound-absorbing member 180 can be arranged on the lower section of more conducting devices 140.Specifically, in the housing 110 of noise-decreasing device 100
Boss 181 can be provided with, boss 181 can be connected to the outer wall in wind turbine cabin 120 in the lower section of more conducting devices 140.It is optional
Ground, in an exemplary embodiment of the utility model, boss 181 can be connected to the bottom of the outer wall in wind turbine cabin 120 and
Along airintake direction (such as horizontal direction) extend and with the spaced apart from inner walls of the housing 110 of noise-decreasing device 100.Sound-absorbing member 180
It is arranged on boss 181.181 one side of boss can be used for supporting Sound-absorbing member 180, and another aspect boss 181 can change
Gas flow direction.In addition, boss 181 and the Sound-absorbing member 180 being arranged on boss 181 can also further weaken noise.
As described above, noise is transmitted along the direction opposite with gas flow direction as illustrated in fig. 8 in housing 110.Specifically, make an uproar
Sound can be along vertically downward direction transmission in more conducting devices 140.Since Sound-absorbing member 180 is arranged on more conducting devices
140 lower sections, therefore, the noise passed over from more conducting devices 140 can be directly passed on Sound-absorbing member 180, therefore inhale
Sound component 180 can more effectively absorb noise, so as to more effectively reduce the noise passed out from the first air inlet 114.
In addition, noise can run into boss 181 in communication process, after the reflection and/or refraction of boss 181 can further by
Weaken.
The utility model also provides a kind of lung ventilator.The lung ventilator includes noise-decreasing device 100.The structure of noise-decreasing device 100
The description of appropriate section above is referred to, here for sake of simplicity, repeating no more.In addition, lung ventilator can also be led including ventilation
The miscellaneous part well known to those skilled in the art such as pipe, humidifier.
The utility model is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is
For the purpose illustrated and illustrated, and it is not intended to the utility model being limited in the range of described embodiment.In addition ability
Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, and teaching according to the present utility model is also
More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model scope claimed with
It is interior.The scope of protection of the utility model is defined by the appended claims and its equivalent scope.
Claims (12)
1. a kind of noise-decreasing device for lung ventilator, it is characterised in that the noise-decreasing device includes：
Housing, is provided with the first air inlet and the first gas outlet on the housing；And
Wind turbine cabin, the wind turbine cabin is disposed in the housing, is provided with the wind turbine cabin and is connected with first air inlet
Multiple second air inlets；
Wherein, the multiple second air inlet is arranged in spraying head type.
2. noise-decreasing device as claimed in claim 1, it is characterised in that the multiple second air inlet is arranged on the wind turbine cabin
Top.
3. noise-decreasing device as claimed in claim 1, it is characterised in that the multiple second air inlet be of the same size and
Equably arrange.
4. noise-decreasing device as claimed in claim 1, it is characterised in that each cross section face of the multiple second air inlet
Product gradually increases along gas flow direction.
5. noise-decreasing device as claimed in claim 1, it is characterised in that the noise-decreasing device further comprises thering is multiple gases
More conducting devices of circulation passage, more conducting devices be arranged on first air inlet and the multiple second air inlet it
Between, to connect first air inlet and the multiple second air inlet.
6. noise-decreasing device as claimed in claim 5, it is characterised in that more conducting devices further comprise supporting part, institute
The inner wall that supporting part is connected to the housing is stated, the multiple air ventilation passage is connected to the supporting part, to be supported on
State on supporting part.
7. noise-decreasing device as claimed in claim 6, it is characterised in that the supporting part is partition plate, and the partition plate is by the shell
Internal body portion is divided into first chamber and second chamber, wherein the first chamber is connected with first air inlet, described second
Chamber is connected with the multiple second air inlet, the both ends of the multiple air ventilation passage respectively positioned at the first chamber and
In the second chamber and protrude from the supporting part.
8. noise-decreasing device as claimed in claim 5, it is characterised in that be provided with the inner wall of the housing and formed by fuisw rib
Spiral helicine flow-guiding channel, the inlet end of the flow-guiding channel connects with more conducting devices, and the flow-guiding channel goes out
Gas end is connected with the multiple second air inlet.
9. noise-decreasing device as claimed in claim 1, it is characterised in that be provided with barriers on the outside of first air inlet, institute
State at least a portion that barriers are spaced apart with first air inlet and block first air inlet.
10. noise-decreasing device as claimed in claim 1, it is characterised in that the noise-decreasing device further comprises filtration members, described
Filtration members are arranged at first air inlet.
11. noise-decreasing device as claimed in claim 1, it is characterised in that the noise-decreasing device further comprises being arranged on gas
Shunting muscle and/or Sound-absorbing member in flow path.
12. a kind of lung ventilator, it is characterised in that the lung ventilator includes the noise abatement dress as any one of claim 1-11
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621455930.7U CN207323803U (en) | 2016-12-28 | 2016-12-28 | Noise-decreasing device and lung ventilator for lung ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621455930.7U CN207323803U (en) | 2016-12-28 | 2016-12-28 | Noise-decreasing device and lung ventilator for lung ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207323803U true CN207323803U (en) | 2018-05-08 |
Family
ID=62374556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621455930.7U Active CN207323803U (en) | 2016-12-28 | 2016-12-28 | Noise-decreasing device and lung ventilator for lung ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207323803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020243956A1 (en) * | 2019-06-06 | 2020-12-10 | Vincent Medical (Dong Guan) Manufacturing Co., Ltd. | Noise reduction device for respiratory apparatus |
| WO2021135615A1 (en) * | 2019-12-30 | 2021-07-08 | 北京怡和嘉业医疗科技股份有限公司 | Noise reduction structure for ventilation treatment device and ventilation treatment device |
-
2016
- 2016-12-28 CN CN201621455930.7U patent/CN207323803U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020243956A1 (en) * | 2019-06-06 | 2020-12-10 | Vincent Medical (Dong Guan) Manufacturing Co., Ltd. | Noise reduction device for respiratory apparatus |
| CN113365681A (en) * | 2019-06-06 | 2021-09-07 | 东莞永胜医疗制品有限公司 | Noise reduction device for breathing apparatus |
| CN113365681B (en) * | 2019-06-06 | 2023-11-07 | 东莞永胜医疗制品有限公司 | Noise reduction device for breathing equipment |
| WO2021135615A1 (en) * | 2019-12-30 | 2021-07-08 | 北京怡和嘉业医疗科技股份有限公司 | Noise reduction structure for ventilation treatment device and ventilation treatment device |
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