CN112138253B - Rectifying device and breathing machine - Google Patents
Rectifying device and breathing machine Download PDFInfo
- Publication number
- CN112138253B CN112138253B CN201910576820.8A CN201910576820A CN112138253B CN 112138253 B CN112138253 B CN 112138253B CN 201910576820 A CN201910576820 A CN 201910576820A CN 112138253 B CN112138253 B CN 112138253B
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- sheet body
- air outlet
- shell
- air inlet
- wing piece
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0054—Liquid ventilation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air Humidification (AREA)
Abstract
The invention relates to the technical field of breathing machine structures and discloses a rectifying device and a breathing machine. The rectifying device is applied to the breathing machine, and is arranged between the centrifugal fan and the water tank by designing the rectifying device at the air outlet of the centrifugal fan, and the flow field of the air flow is improved by the action of the two fins in the rectifying device, so that the air flow output after passing through the rectifying device is more stable.
Description
Technical Field
The invention relates to the technical field of ventilator structures, in particular to a rectifying device and a ventilator.
Background
In some respirators in the existing market, the air outlets of the centrifugal fans are directly connected with the water feeding tank of the humidifier. However, because the air flow at the air outlet of the centrifugal fan is very unstable, the air flow directly enters the water tank of the humidifier to generate great noise, which is unfavorable for the use experience of users.
Disclosure of Invention
The invention aims to provide a rectifying device and a breathing machine, and aims to solve the technical problem that in the existing market, the air outlets of centrifugal fans of the breathing machine are directly connected with a water feeding tank of a humidifier, so that great noise can be generated.
In order to achieve the above purpose, the invention provides the following scheme:
the invention provides a rectifying device which is characterized by comprising a shell, a first wing piece and a second wing piece, wherein the shell is provided with an inner cavity, a first air inlet communicated with the inner cavity and a first air outlet communicated with the inner cavity, the first wing piece and the second wing piece are both arranged in the inner cavity, the first wing piece is arranged between the first air inlet and the first air outlet, and the second wing piece is arranged on one side, far away from the first air outlet, of the first air inlet.
As an improvement, the first air outlet and the first air inlet are arranged in a staggered mode, and orthographic projections of the first air inlet and the first air outlet on the shell are not overlapped with each other.
As an improvement, the shell is provided with a first side part and a second side part which are arranged in a back-to-back mode at intervals, the first air inlet penetrates from the first side part to the inner cavity, the first air outlet penetrates from the second side part to the inner cavity, and the orthographic projection of the first air inlet on the first side part and the orthographic projection of the first air outlet on the first side part are not overlapped.
As an improvement, the inner cavity is provided with two first inner side walls which are oppositely arranged at intervals and two second inner side walls which are oppositely arranged at intervals, the first inner side walls are perpendicular to the second inner side walls, the first fins are arc-shaped, the first fins extend from one end of one first inner side wall to one end of the other first inner side wall along an arc-shaped track, and the first fins are positioned between the first air inlet and the first air outlet;
the second wing piece is in a circular arc shape, the second wing piece extends from one end of the second inner side wall towards the other end of the second inner side wall along a circular arc track, and the circle center of the second wing piece is located on the side where the first air inlet is located, or the second wing piece is in a linear shape, and the second wing piece extends from one end of the second inner side wall towards the other end of the second inner side wall along a linear track.
As an improvement, the housing is further provided with a positioning ring for mounting and positioning the rectifying device, and the positioning ring extends from the first side part to a direction away from the second side part.
And/or, the central shaft of the first air inlet and the central shaft of the first air outlet are arranged in parallel at intervals.
As an improvement, the housing comprises a first shell and a second shell, the second shell is connected with the first shell and surrounds the first shell to form the inner cavity, the first air inlet is formed in the first shell, and the first air outlet is formed in the second shell.
As an improvement, a first sheet body and a second sheet body are arranged on the first shell, a third sheet body and a fourth sheet body are arranged on the second shell, the first sheet body and the third sheet body are spliced to form the first wing piece, and the second sheet body and the fourth sheet body are spliced to form the second wing piece.
As an improvement, one of the first sheet body and the third sheet body is provided with a first convex rib, the other one of the first sheet body and the third sheet body is provided with a first clamping groove, and the first sheet body and the third sheet body are spliced to form the first wing panel through the clamping fit of the first convex rib and the first clamping groove; one of the second sheet body and the fourth sheet body is provided with a second convex rib, the other one of the second sheet body and the fourth sheet body is provided with a second clamping groove, and the second sheet body and the fourth sheet body are spliced to form the second wing panel through the clamping fit of the second convex rib and the second clamping groove.
As an improvement, the rectifying device further comprises a pressure detection port for detecting the pressure of the air flow in the inner cavity by the pressure sensor, and the pressure detection port is arranged close to the first air outlet.
The invention also provides a breathing machine, which comprises a host, a humidifier and the rectifying device, wherein the rectifying device is arranged between the host and the humidifier, a centrifugal fan is arranged in the host, a second air outlet for the centrifugal fan to exhaust air outwards is arranged outside the host, a second air inlet is arranged on the humidifier, the first air inlet is in butt joint with the second air outlet, and the first air outlet is in butt joint with the second air inlet.
Compared with the prior art, the invention has the beneficial effects that:
when the rectifying device provided by the invention is applied to a breathing machine, the rectifying device is arranged between the centrifugal fan and the water tank by designing the rectifying device at the air outlet of the centrifugal fan, and the flow field of air flow is improved by the action of the two fins in the rectifying device, so that the air flow output after passing through the rectifying device is more stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a rectifying device according to an embodiment of the present invention;
FIG. 2 is an exploded view of a rectifying device according to an embodiment of the present invention;
FIG. 3 is a schematic left-side plan view of a rectifying device according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view at A-A in FIG. 3;
fig. 5 is a schematic structural view of a first housing according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of the structure at B in FIG. 5;
fig. 7 is a schematic structural diagram of a second housing according to an embodiment of the present invention;
FIG. 8 is an enlarged schematic view of the structure at C in FIG. 7;
fig. 9 is a schematic diagram of a second structure of the second housing according to the embodiment of the present invention;
FIG. 10 is a schematic diagram of an assembled structure of a host, a humidifier, and a rectifying device according to an embodiment of the present invention.
Wherein, 1, rectifying device; 10. a housing; 11. an inner cavity; 111. a first inner sidewall; 112. a second inner sidewall; 12. a first housing; 121. a first air inlet; 122. a first side portion; 123. a first connection pipe; 1231. a first annular projection; 124. a first sheet body; 1241. a first clamping groove; 125. a second sheet body; 1251. a second clamping groove; 13. a second housing; 131. a first air outlet; 132. a second side portion; 133. a third sheet; 1331. the first convex rib; 134. a fourth sheet; 1341. the second convex rib; 135. a second connection pipe; 136. a third connection pipe; 20. a first fin; 30. a second fin; 40. a positioning ring; 41. a second annular projection; 50. a pressure detection port; 60. a host; 70. a humidifier; 71. and (5) a water tank.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1 to 10, an embodiment of the present invention provides a rectifying device 1, where the rectifying device 1 includes a housing 10, a first fin 20 and a second fin 30, the housing 10 has an inner cavity 11, a first air inlet 121 and a first air outlet 131, one end of the first air inlet 121 is connected to a centrifugal fan on a host 60, the other end of the first air inlet 121 is communicated with the inner cavity 11, one end of the first air outlet 131 is connected to a water tank 71 of a humidifier 70, the other end of the first air outlet 131 is communicated with the inner cavity 11, the first air outlet 131 and the first air inlet 121 are arranged in a staggered manner, and orthographic projections of the first air inlet 121 and the first air outlet 131 on the housing 10 are not overlapped with each other, so that a bent airflow loop can be formed in the inner cavity 11 to change the flow direction of airflow entering from the first air inlet 121.
In the invention, the first wing piece 20 and the second wing piece 30 are both arranged in the inner cavity 11, the first wing piece 20 is arranged between the first air inlet 121 and the first air outlet 131, the second wing piece 30 is arranged on one side of the first air inlet 121 far away from the first air outlet 131, and the first wing piece 20 and the second wing piece 30 can improve the flow field of the air flow, so that the air flow output after passing through the rectifying device 1 is more stable.
Preferably, the first air inlet 121 and the first air outlet 131 are both circular, and have diameters ranging from 15 to 25mm.
Referring to fig. 2 to fig. 4 and fig. 9, specifically, the housing 10 includes a first housing 12 and a second housing 13, the second housing 13 is connected to the first housing 12 and encloses the first housing 12 to form the cavity 11, a side of the first housing 12 away from the second housing 13 is a first side 122, a side of the second housing 13 away from the first housing 12 is a second side 132, the first side 122 and the second side 132 are opposite to each other, and the first air inlet 121 extends from the first side 122 to the cavity 11.
Preferably, a first connecting pipe 123 is convexly arranged on the first shell 12, the first connecting pipe 123 is communicated with the first air inlet 121, and a first annular protrusion 1231 is convexly arranged on the middle position of the outer side wall of the first connecting pipe 123 so as to be convenient for being in clamping fit with the host 60. The first air outlet 131 is disposed on the second housing 13 and extends from the second side 132 to the inner cavity 11, and the second housing 13 is provided with a second connecting pipe 135 in a protruding manner, and the second connecting pipe 135 is communicated with the first air outlet 131.
Preferably, the central axis of the first air inlet 121 and the central axis of the first air outlet 131 are disposed in parallel at intervals.
The inner cavity 11 in this embodiment is a square cavity, the inner dimension of the cavity is 70-100mm long, the width is 40-70mm, the height (i.e. the vertical distance between the first air outlet 131 and the first air inlet 121) is 10-30mm, and the radius of the round corners around is 2-10mm.
The inner cavity 11 has two first inner side walls 111 disposed opposite to each other at intervals and two second inner side walls 112 disposed opposite to each other at intervals, the first inner side walls 111 are perpendicular to the second inner side walls 112, preferably, the first fins 20 and the second fins 30 are both circular arc-shaped, specifically, the first fins 20 extend from one end of one first inner side wall 111 toward one end of the other first inner side wall 111 along a circular arc-shaped track, the first fins 20 are located between the first air inlet 121 and the first air outlet 131, and the first fins 20 extend from the first air inlet 121 toward the first air outlet 131 along a circular arc-shaped track; the second fins 30 extend from one end of the second inner sidewall 112 toward one end of the other second inner sidewall 112 along a circular arc track, and the center of the second fins 30 is located on the side of the first air inlet 121, however, the second fins 30 may also be linear, and specifically, the second fins 30 extend from one end of the one second inner sidewall 112 toward one end of the other second inner sidewall 112 along a linear track.
Preferably, the first casing 12 is provided with a first sheet 124 and a second sheet 125, the second casing 13 is correspondingly provided with a third sheet 133 and a fourth sheet 134, the first sheet 124 and the third sheet 133 are spliced to form a circular arc-shaped first wing 20, and the second sheet 125 and the fourth sheet 134 are spliced to form a circular arc-shaped or linear second wing 30, so as to reduce the processing cost of the rectifying device 1. In this embodiment, the first sheet 124, the second sheet 125 and the first housing 12 are integrally formed, and the third sheet 133, the fourth sheet 134 and the second housing 13 are integrally formed.
In this embodiment, the first airfoil 20 is also referred to as a high-pressure zone airfoil and the second airfoil 30 is also referred to as a low-pressure zone airfoil. The wall thickness of the two fins is 1-3mm, the heights of the fins are matched with the inner dimension of the square cavity of the rectifying device 1, the arc length of the first fin 20 is 15-30mm, and the arc length of the second fin 30 is 25-40mm.
The circular arc bending direction of the first wing 20 is: the center of the circle is at the right side of the circular arc-shaped first wing piece 20; the arc bending direction of the second wing 30 is: the center of the circle is above the circular arc-shaped second wing 30. The arc length, the arc radius, the position and other parameters of the first wing piece 20 and the second wing piece 30 are designed according to the condition of the airflow field output by the centrifugal fan, and repeated experimental adjustment is carried out to achieve the optimal effect.
Referring to fig. 5 to 8, preferably, one of the first sheet 124 and the third sheet 133 is provided with a first rib 1331, and the other is provided with a first slot 1241, and the first sheet 124 and the third sheet 133 are spliced to form the first wing 20 through the snap fit of the first rib 1331 and the first slot 1241; one of the second sheet 125 and the fourth sheet 134 is provided with a second rib 1341, the other is provided with a second clamping groove 1251, the second sheet 125 and the fourth sheet 134 are spliced to form the second wing 30 through the clamping fit of the second rib 1341 and the second clamping groove 1251, preferably, the first clamping groove 1241 is arranged on the first sheet 124, the first rib 1331 is arranged on the third sheet 133, the second clamping groove 1251 is arranged on the second sheet 125, and the second rib 1341 is arranged on the fourth sheet 134.
Correspondingly, the first shell 12 and the second shell 13 can be positioned through the spigot, and the first shell 12 and the second shell 13 can be connected in an ultrasonic welding way, an adhesive way or a screw way, so that the rectifying device 1 can be conveniently detached and maintained.
In this embodiment, the casing 10 is further provided with a positioning ring 40 for mounting and positioning the rectifying device 1, the positioning ring 40 is disposed on the first housing 12, the outer side wall of the positioning ring 40 is provided with a second annular protrusion 41 engaged with the host 60 in a clamping manner, and the second annular protrusion 41 is disposed on a side of the positioning ring 40 away from the first side 122, so that the positioning ring 40 is convenient for fixing the rectifying device 1 during mounting, and preventing the rectifying device 1 from shifting during assembly.
The rectifying device 1 further comprises a pressure detecting port 50 for detecting the pressure of the air flow in the inner cavity 11 by the pressure sensor, specifically, the pressure detecting port 50 is arranged on the second shell 13, a third connecting pipe 136 is further arranged on the second shell 13, the third connecting pipe 136 is communicated with the pressure detecting port 50, and the pressure detecting port 50 is connected with an external pressure sensor through the third connecting pipe 136 and is used for transmitting a pressure signal to the pressure sensor. The pressure detecting port 50 is disposed near the first air outlet 131, because the flow field in this area is relatively stable, and the pressure fluctuation is small, which is beneficial to the signal acquisition of the pressure sensor.
Referring to fig. 10, the present invention further provides a breathing machine, which includes a host 60, a humidifier 70, and the rectifying device 1 described above, wherein the rectifying device 1 is disposed between the host 60 and the humidifier 70, a centrifugal fan is disposed in the host 60, a water tank 71 is disposed in the humidifier 70, a second air outlet for the centrifugal fan to exhaust air is disposed outside the host 60, a second air inlet is disposed on the water tank 71, the first air inlet 121 is in butt joint with the second air outlet, and the first air outlet 131 is in butt joint with the second air inlet. Through design a fairing 1 in centrifugal fan's air outlet department, this fairing 1 can play good rectification effect to centrifugal fan output's unstable air current, makes it can output relatively stable air current and enter into in the humidifier 70 water tank 71 for the noise that the water tank 71 produced in the humidifier 70 reduces, improves user's use experience.
The centrifugal fan is connected with the rectifying device 1 through the vibration reduction and sealing piece, and the rotation direction of the fan blade of the centrifugal fan is clockwise, so that the air flow output by the centrifugal fan is deflected to the side of the volute tongue, after entering the rectifying device 1, a high-pressure area is generated in the area near the first wing piece 20, and a low-pressure area is generated in the area near the second wing piece 30. The primary function of the second vane 30 in the fairing 1 is to reduce the pressure gradient in the low pressure region and the primary function of the first vane 20 is to direct the high pressure air flow to reduce the generation of eddies. In summary, the cooperation of the first fin 20, the second fin 30 and the cavity in the rectifying device 1 can perform a good rectifying effect on the unstable air flow output by the centrifugal fan, so that the unstable air flow can be output into the water tank 71 of the humidifier 70.
The rectifying device 1 reduces energy loss of air flow as much as possible under the condition of ensuring rectifying effect through excellent aerodynamic design, so that the rectifying device 1 has the characteristic of low air resistance; meanwhile, the rectifying device 1 is simple in structure, the first shell 12 and the second shell 13 can be in an upper-lower demolding mode, the mold is simple, and the cost is low.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (7)
1. The rectifying device is characterized by comprising a shell, a first wing piece and a second wing piece, wherein the shell is provided with an inner cavity, a first air inlet communicated with the inner cavity and a first air outlet communicated with the inner cavity, the first wing piece and the second wing piece are both arranged in the inner cavity, the first wing piece is arranged between the first air inlet and the first air outlet, and the second wing piece is arranged on one side, far away from the first air outlet, of the first air inlet; the first air outlet and the first air inlet are arranged in a staggered mode, and orthographic projections of the first air inlet and the first air outlet on the shell are not overlapped with each other; the shell is provided with a first side part and a second side part which are arranged in a back-to-back mode at intervals, the first air inlet penetrates through the first side part to the inner cavity, the first air outlet penetrates through the second side part to the inner cavity, and the orthographic projection of the first air inlet on the first side part and the orthographic projection of the first air outlet on the first side part are not overlapped; the inner cavity is provided with two first inner side walls which are oppositely arranged at intervals and two second inner side walls which are oppositely arranged at intervals, the first inner side walls are perpendicular to the second inner side walls, the first fins are arc-shaped, the first fins extend from one end of one first inner side wall to one end of the other first inner side wall along an arc-shaped track, and the first fins are positioned between the first air inlet and the first air outlet;
the second wing piece is in a circular arc shape, the second wing piece extends from one end of the second inner side wall towards the other end of the second inner side wall along a circular arc track, and the circle center of the second wing piece is located on the side where the first air inlet is located, or the second wing piece is in a linear shape, and the second wing piece extends from one end of the second inner side wall towards the other end of the second inner side wall along a linear track.
2. The fairing as recited in claim 1, wherein said housing further includes a retaining ring for mounting and positioning said fairing, said retaining ring extending from said first side portion toward a direction away from said second side portion; and/or the number of the groups of groups,
the central shaft of the first air inlet and the central shaft of the first air outlet are arranged in parallel at intervals.
3. The rectifying device according to claim 1, wherein said housing comprises a first shell and a second shell, said second shell is connected to said first shell and encloses said first shell to form said inner cavity, said first air inlet is provided on said first shell, and said first air outlet is provided on said second shell.
4. The rectifying device according to claim 3, wherein a first sheet body and a second sheet body are provided on the first housing, a third sheet body and a fourth sheet body are provided on the second housing, the first sheet body and the third sheet body are spliced to form the first wing, and the second sheet body and the fourth sheet body are spliced to form the second wing.
5. The rectifying device according to claim 4, wherein one of the first sheet body and the third sheet body is provided with a first rib, the other one of the first sheet body and the third sheet body is provided with a first clamping groove, and the first sheet body and the third sheet body are spliced to form the first wing through the clamping fit of the first rib and the first clamping groove; one of the second sheet body and the fourth sheet body is provided with a second convex rib, the other one of the second sheet body and the fourth sheet body is provided with a second clamping groove, and the second sheet body and the fourth sheet body are spliced to form the second wing panel through the clamping fit of the second convex rib and the second clamping groove.
6. The fairing as recited in claim 1, further comprising a pressure sensing port for a pressure sensor to sense a pressure of the air flow within said interior chamber, said pressure sensing port being positioned proximate said first air outlet.
7. A breathing machine, characterized by, including host computer, humidifier and the fairing of any one of claims 1 through 6, fairing locates between the host computer with the humidifier, be equipped with centrifugal fan in the host computer, the host computer is equipped with outward the second air outlet that is used for supplying centrifugal fan outwards airs exhaust outward, be equipped with the second air intake on the humidifier, first air intake with the butt joint of second air outlet, first air outlet with the butt joint of second air intake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576820.8A CN112138253B (en) | 2019-06-28 | 2019-06-28 | Rectifying device and breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576820.8A CN112138253B (en) | 2019-06-28 | 2019-06-28 | Rectifying device and breathing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112138253A CN112138253A (en) | 2020-12-29 |
| CN112138253B true CN112138253B (en) | 2023-08-08 |
Family
ID=73869485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910576820.8A Active CN112138253B (en) | 2019-06-28 | 2019-06-28 | Rectifying device and breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112138253B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1524004A1 (en) * | 2003-10-17 | 2005-04-20 | Weinmann Geräte für Medizin GmbH & Co. KG | Noise damping assembly for an inhalation device |
| CN205073449U (en) * | 2014-12-18 | 2016-03-09 | 刘黎 | A make an uproar cabin and water conservancy diversion mechanism fall for breathing machine fan |
| EP3073208A1 (en) * | 2015-03-26 | 2016-09-28 | MAICO Elektroapparate-Fabrik GmbH | Silencer for a ventilation arrangement, muffler assembly, ventilation device and method for manufacturing such a silencer |
| CN207886492U (en) * | 2017-03-17 | 2018-09-21 | 深圳市大雅医疗技术有限公司 | A kind of lung ventilator and its airtight denoising device of humidification machine |
| CN208458815U (en) * | 2018-08-13 | 2019-02-01 | 金卡智能集团股份有限公司 | A kind of flow straightener and gas dosing instrument for gas dosing |
-
2019
- 2019-06-28 CN CN201910576820.8A patent/CN112138253B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1524004A1 (en) * | 2003-10-17 | 2005-04-20 | Weinmann Geräte für Medizin GmbH & Co. KG | Noise damping assembly for an inhalation device |
| CN205073449U (en) * | 2014-12-18 | 2016-03-09 | 刘黎 | A make an uproar cabin and water conservancy diversion mechanism fall for breathing machine fan |
| EP3073208A1 (en) * | 2015-03-26 | 2016-09-28 | MAICO Elektroapparate-Fabrik GmbH | Silencer for a ventilation arrangement, muffler assembly, ventilation device and method for manufacturing such a silencer |
| CN207886492U (en) * | 2017-03-17 | 2018-09-21 | 深圳市大雅医疗技术有限公司 | A kind of lung ventilator and its airtight denoising device of humidification machine |
| CN208458815U (en) * | 2018-08-13 | 2019-02-01 | 金卡智能集团股份有限公司 | A kind of flow straightener and gas dosing instrument for gas dosing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112138253A (en) | 2020-12-29 |
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