CN204319449U - Respirator blower fan deflector - Google Patents
Respirator blower fan deflector Download PDFInfo
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- CN204319449U CN204319449U CN201420807520.9U CN201420807520U CN204319449U CN 204319449 U CN204319449 U CN 204319449U CN 201420807520 U CN201420807520 U CN 201420807520U CN 204319449 U CN204319449 U CN 204319449U
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- blower fan
- air inlet
- anger
- projection
- respirator
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Abstract
This utility model embodiment provides a kind of respirator blower fan deflector, comprise noise reduction cabin, blower fan (3) is provided with in described noise reduction cabin, described noise reduction cabin is provided with air inlet flow-guiding structure on the inwall of the air inlet (21) of described blower fan (3), and/or the air outlet (22) of described blower fan (3) is provided with flow-guiding structure of giving vent to anger; Described air inlet side flow-guiding structure in cone shape air inlet projection (23), described in give vent to anger flow-guiding structure in cone shape projection of giving vent to anger (24).This deflector can guide air-flow regularly to enter air inlet, avoid air-flow mutually to collide, significantly reduce the air disturbance of air inlet, reduce the noise of respirator, do not affect the ortho sleep of user, and structure simple, be easy to realize, be conducive to reducing manufacturing cost.
Description
Technical field
This utility model relates to the noninvasive ventilator technical field being used for the treatment of sleep apnea syndrome, particularly a kind of respirator blower fan deflector.
Background technology
Respirator is that a kind of normal physiological that can replace, control or change people is breathed, and increases pulmonary ventilation volume, improves respiratory function, alleviate respiratory function consumption, save the device of heart reservation ability.Sleep-respiratory machine by given pressure, constantly for patient provides oxygen, anoxia problem when improving patient sleeps with this.Sleep-respiratory machine (or being called noninvasive ventilator) is mainly used in treating sleep apnea syndrome, namely severe snoring and with symptom of feeling suffocated, and it can also treat the complication of sleep apnea syndrome, improve blood oxygen concentration during user nighttime sleep, treatment hypoxemia etc.
Respirator adopts turbofan manufacture compressed air and then can flow to user for the air breathed, in compressed-air actuated manufacture process, air enters from the air inlet of blower fan, along with the high speed rotating of draught fan impeller, air in the middle of impeller blade is subject to the effect of centrifugal force, towards the border movement of impeller, the air being positioned at wheel edge enters the toroidal cavity of the pump housing, then impeller is returned again, again shuttling movement is carried out again in the same way from the starting point of blade, because air is accelerated uniformly, the circulating current produced during vane rotary makes air scurry out in the form of helical lines, air after acceleration carries high energy and gets rid of for use from air outlet.
The airflow direction of the respirator air inlet of prior art as shown in Figure 1, turning effort by impeller affects in blower fan and forms negative pressure, air enters blower fan 3 from air inlet 21 surrounding, the centre position neighboring gas flow closing on air inlet 21 mutually collision can produce gas backstreaming, and then the airflow direction upset near air inlet 21, make air-flow become irregular formation flow-disturbing, produce aerodynamic noise, increase the overall noise amount of respirator blower fan.Similar with air inlet, the airflow direction of existing fan outlet as shown in Figure 2, air is discharged to surrounding from blower fan 3 inside from air outlet 22, when the airflow strikes of discharging is to the bottom surface in blower fan noise reduction cabin, can form gyration airflow, gyration airflow upwards flows and then can upset the airflow direction near air outlet 22, air-flow is made to become irregular formation flow-disturbing, produce aerodynamic noise, strengthen the noise content of respirator blower fan thus further, the serious sleep quality ringing user.
For this reason, there is a kind of silencing means being configured in air inlet in prior art, as disclosed a kind of silencing means in Chinese patent literature CN101075431 and applying the respirator of this silencing means, the inside of described silencing means is provided with helical intake, the outer end of helical intake is located at by the air inlet of helical intake, the gas outlet of helical intake is located at the inner center of helical intake and perpendicular to the helical planes of helical intake, the interior edge near position, gas outlet on the sidewall of helical intake is round and smooth globoidal structure.But the complex structure of this silencing means, not easily processing and manufacturing, production cost is higher.
Utility model content
Technical problem to be solved in the utility model is that the complex structure of existing respirator blower fan silencing device, manufacturing cost are high, and provides a kind of and effectively can reduce air inlet flow-disturbing, reduces noise, guarantees user sleep quality and the respirator blower fan deflector that structure is simple, cost is low.
A kind of respirator blower fan deflector that this utility model embodiment provides, comprise noise reduction cabin, be provided with blower fan in described noise reduction cabin, described noise reduction cabin is provided with air inlet flow-guiding structure on the inwall of the air inlet of described blower fan, and/or the air outlet of described blower fan is provided with flow-guiding structure of giving vent to anger; Described air inlet side flow-guiding structure for protruding in cone shape air inlet, described in give vent to anger flow-guiding structure in cone shape projection of giving vent to anger.
In above-mentioned respirator blower fan deflector, described air inlet protruding and/or described in give vent to anger protruding axis and the dead in line of described fan rotation shaft.
In above-mentioned respirator blower fan deflector, described air inlet protruding and/or described in protruding bus of giving vent to anger be the curve be inwardly recessed.
In above-mentioned respirator blower fan deflector, described air inlet protruding and/or described in protruding height of giving vent to anger be 6mm-12mm, described air inlet protruding and/or described in the give vent to anger radius of curvature of protruding bus be 6mm-10mm.
In above-mentioned respirator blower fan deflector, described air inlet protruding and/or described in protruding height of giving vent to anger be 10mm, described air inlet protruding and/or described in the give vent to anger radius of curvature of protruding bus be 8mm.
In above-mentioned respirator blower fan deflector, be provided with soft rubber sleeve in described noise reduction cabin, described blower fan is arranged in described soft rubber sleeve, described in side flow-guiding structure of giving vent to anger be arranged on described soft rubber sleeve towards on the inwall of the described air outlet of described blower fan.
In above-mentioned respirator blower fan deflector, described noise reduction cabin comprises the lid and cabin body that cooperatively interact, and described air inlet side flow-guiding structure is arranged at described lid towards on the inwall of the described air inlet of described blower fan.
In above-mentioned respirator blower fan deflector, described lid is provided with some air inlet pipe uniform along described lid circumferencial direction.
In above-mentioned respirator blower fan deflector, be tightly connected by connector between described lid and cabin body.
In above-mentioned respirator blower fan deflector, described soft rubber sleeve is connected with described connector removable seal.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) respirator blower fan deflector of the present utility model, on the inwall of air inlet, air inlet side flow-guiding structure is provided with in noise reduction cabin, air-flow is guided regularly to enter air inlet, air-flow is avoided mutually to collide, and/or the air outlet of blower fan is provided with flow-guiding structure of giving vent to anger, air-flow is guided regularly to discharge blower fan, significantly reduce the air disturbance of air inlet and/or air outlet, reduce the noise of respirator, do not affect the ortho sleep of user, and air inlet side flow-guiding structure is specially air inlet projection, this flow-guiding structure simple structure, be easy to realize, be conducive to reducing manufacturing cost.
(2) respirator blower fan deflector of the present utility model, further, side flow-guiding structure of giving vent to anger is arranged on soft rubber sleeve towards on the inwall of the air outlet of blower fan, to be convenient to give vent to anger the setting of side flow-guiding structure, and can effectively guide air-flow regularly to discharge blower fan, not easily produce convolution flow-disturbing, reduce aerodynamic noise further, reduce the noise content of respirator blower fan, guarantee the sleep quality of user.
(3) respirator blower fan deflector of the present utility model, wherein air inlet protruding and give vent to anger protruding axis all with the dead in line of fan rotation shaft, the water conservancy diversion effect of the best can be arrived.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, this utility model is described in further detail, wherein
Fig. 1 is the airflow direction schematic diagram of prior art respirator air inlet;
Fig. 2 is the airflow direction schematic diagram of prior art respirator fan outlet;
Fig. 3 is the respirator blower fan noise reducing mechanism detonation configuration schematic diagram that this utility model one embodiment provides;
Fig. 4 is the top view of the respirator blower fan noise reducing mechanism that this utility model one embodiment provides;
Fig. 5 is the profile of the respirator blower fan noise reducing mechanism that this utility model one embodiment provides;
Fig. 6 is lid schematic diagram in the respirator blower fan noise reducing mechanism that provides of this utility model one embodiment.
In figure, Reference numeral is expressed as: 1, air inlet pipe; 2, soft rubber sleeve; 3, blower fan; 4, lid; 5, cabin body; 6, connector; 13, sealing ring; 14, air inlet; 15, gas outlet; 21, air inlet; 22, air outlet; 23, air inlet is protruding; 24, to give vent to anger projection; 25, escape pipe.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.
As shown in Figure 3, be the respirator blower fan deflector overall schematic that this utility model embodiment provides, described respirator blower fan deflector comprises noise reduction cabin, and be provided with soft rubber sleeve 2 in noise reduction cabin, blower fan 3 is arranged in soft rubber sleeve 2.
As shown in Figure 5, soft rubber sleeve 2 is cylindric, and adopt silica gel to make, the upper end open of soft rubber sleeve 2 is air inlet 14, corresponding with air inlet 21 position of blower fan 3, and the lower ending opening of soft rubber sleeve 2 is gas outlet 15, corresponding with air outlet 22 position of blower fan 3.The bore of gas outlet 15 is less than the bore of air inlet 14, and on soft rubber sleeve 2, compared with the cylinder near air inlet 14, the cylinder near gas outlet 15 is to gas outlet 15 indentation.In addition, the inwall of soft rubber sleeve 2 forms convex stupefied, and the outer wall of blower fan 3 forms projection, when blower fan 3 loads soft rubber sleeve 2, protruding by convex stupefied spacing, and the top of blower fan 3 and bottom are not all contacted with soft rubber sleeve 2, with reduce blower fan 3 the outside transmission of generation noise.
Noise reduction cabin comprises the lid 4 and cabin body 5 that cooperatively interact, lid 4 and cabin body 5 are fastened and connected or by screw assembly connection, and connector 6 is provided with between lid 4 and cabin body 5, the contour edge of connector 6 is sealing ring 13, connector 6 has central mounting hole, and soft rubber sleeve 2 to be arranged in pilot hole and to be connected with connector 6 removable seal.Cabin body 5 bottom is provided with escape pipe 25, lid 4 is provided with some air inlet pipe 1 uniform along lid 4 circumferencial direction, and air inlet pipe 1 can reduce intake swirl along the circumferencial direction distribution of lid 4, reduces noise.As shown in Figure 4.
Described lid 4 is provided with air inlet side flow-guiding structure on the inwall of the described air inlet 21 of described blower fan 3, and described soft rubber sleeve 2 is provided with side flow-guiding structure of giving vent to anger on the inwall of described air outlet 22, as shown in Figure 6.
Concrete, described air inlet side flow-guiding structure and described side flow-guiding structure of giving vent to anger are cone-shaped bulge, and in order to arrive best water conservancy diversion effect, air inlet protruding 23 and give vent to anger protruding 24 axis all with the dead in line of described blower fan 3 turning cylinder.
In the present embodiment, described air inlet protruding 23 and described bus of giving vent to anger projection 24 are the curve be inwardly recessed, to adapt to air motion direction.The height of described air inlet projection 23 is 6mm-12mm, and the radius of curvature of the bus of described air inlet projection 23 is 6mm-10mm; Described give vent to anger protruding 24 height be 6mm-12mm, described in give vent to anger protruding 24 the radius of curvature of bus be 6mm-10mm.Preferably, described air inlet projection 23, described in give vent to anger protruding 24 height be 10mm, described air inlet projection 23, described in give vent to anger protruding 24 the radius of curvature of bus be 8mm.
In other embodiments, according to product design needs, can select only to arrange air inlet side flow-guiding structure or side flow-guiding structure of giving vent to anger, also the water conservancy diversion effect of existing respirator blower fan can be improved to a certain extent, reduce the noise of air inlet or the generation of air outlet place flow-disturbing, reduce the impact that respirator fan noise is slept on user.
In other embodiments, according to different product structure, noise reduction cabin can be designed to integrated overall structure, and flow-guiding structure of the present utility model is arranged at the inner one side towards the air inlet 21 of blower fan 3 in noise reduction cabin.
In other embodiments, according to product design and noise criteria needs, the height of air inlet projection 23, projection 24 of giving vent to anger can be designed to 6mm, 6.5mm, 7mm, 8mm, 8.3mm, 9mm, 9.6mm, 10mm, 11mm, 12mm.The radius of curvature of air inlet projection 23, projection 24 of giving vent to anger can be designed to 6mm, 7mm, 7.2mm, 8mm, 8.5mm, 9mm, 10mm.Further, the height of air inlet projection 23 can be the same or different with the height of projection 24 of giving vent to anger, and similarly, the radius of curvature of air inlet projection 23 can be the same or different with the radius of curvature of projection 24 of giving vent to anger.
In other embodiments, in order to reduce production difficulty of processing, only can make the dead in line of the axis of air inlet projection 23 and described blower fan 3 turning cylinder, or only make the give vent to anger protruding axis of 24 and the dead in line of described blower fan 3 turning cylinder, same energy achievement unit split flow effect, reduces the airborne noise of air inlet or air outlet.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a respirator blower fan deflector, comprise noise reduction cabin, blower fan (3) is provided with in described noise reduction cabin, it is characterized in that: described noise reduction cabin is provided with air inlet flow-guiding structure on the inwall of the air inlet (21) of described blower fan (3), and/or the air outlet (22) of described blower fan (3) is provided with flow-guiding structure of giving vent to anger; Described air inlet side flow-guiding structure in cone shape air inlet projection (23), described in give vent to anger flow-guiding structure in cone shape projection of giving vent to anger (24).
2. respirator blower fan deflector according to claim 1, is characterized in that: described air inlet projection (23) and/or described in give vent to anger the axis of projection (24) and the dead in line of described blower fan (3) turning cylinder.
3. respirator blower fan deflector according to claim 2, is characterized in that: described air inlet projection (23) and/or described in the give vent to anger bus of projection (24) be the curve be inwardly recessed.
4. respirator blower fan deflector according to claim 3, it is characterized in that: described air inlet projection (23) and/or described in the give vent to anger height of projection (24) be 6mm-12mm, described air inlet projection (23) and/or described in the give vent to anger radius of curvature of bus of projection (24) be 6mm-10mm.
5. respirator blower fan deflector according to claim 4, it is characterized in that: described air inlet projection (23) and/or described in the give vent to anger height of projection (24) be 10mm, described air inlet projection (23) and/or described in the give vent to anger radius of curvature of bus of projection (24) be 8mm.
6. according to the arbitrary described respirator blower fan deflector of claim 1-5, it is characterized in that: in described noise reduction cabin, be provided with soft rubber sleeve (2), described blower fan (3) is arranged in described soft rubber sleeve (2), described in side flow-guiding structure of giving vent to anger be arranged on described soft rubber sleeve (2) towards on the inwall of the described air outlet (22) of described blower fan (3).
7. respirator blower fan deflector according to claim 6, it is characterized in that: described noise reduction cabin comprises the lid (4) and cabin body (5) that cooperatively interact, described air inlet side flow-guiding structure is arranged at described lid (4) towards on the inwall of the described air inlet (21) of described blower fan (3).
8. respirator blower fan deflector according to claim 7, is characterized in that: described lid (4) is provided with some air inlet pipe (1) uniform along described lid (4) circumferencial direction.
9. respirator blower fan deflector according to claim 7, is characterized in that: be tightly connected by connector (6) between described lid (4) and cabin body (5).
10. respirator blower fan deflector according to claim 9, is characterized in that: described soft rubber sleeve (2) is connected with described connector (6) removable seal.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520408641.0U CN205073449U (en) | 2014-12-18 | 2014-12-18 | A make an uproar cabin and water conservancy diversion mechanism fall for breathing machine fan |
| CN201420807520.9U CN204319449U (en) | 2014-12-18 | 2014-12-18 | Respirator blower fan deflector |
| CN201520408642.5U CN205025827U (en) | 2014-12-18 | 2014-12-18 | A water conservancy diversion mechanism that is used for flexible glue of breathing machine fan to overlap and breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807520.9U CN204319449U (en) | 2014-12-18 | 2014-12-18 | Respirator blower fan deflector |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520408642.5U Division CN205025827U (en) | 2014-12-18 | 2014-12-18 | A water conservancy diversion mechanism that is used for flexible glue of breathing machine fan to overlap and breathing machine |
| CN201520408641.0U Division CN205073449U (en) | 2014-12-18 | 2014-12-18 | A make an uproar cabin and water conservancy diversion mechanism fall for breathing machine fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204319449U true CN204319449U (en) | 2015-05-13 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420807520.9U Active CN204319449U (en) | 2014-12-18 | 2014-12-18 | Respirator blower fan deflector |
| CN201520408642.5U Active CN205025827U (en) | 2014-12-18 | 2014-12-18 | A water conservancy diversion mechanism that is used for flexible glue of breathing machine fan to overlap and breathing machine |
| CN201520408641.0U Active CN205073449U (en) | 2014-12-18 | 2014-12-18 | A make an uproar cabin and water conservancy diversion mechanism fall for breathing machine fan |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520408642.5U Active CN205025827U (en) | 2014-12-18 | 2014-12-18 | A water conservancy diversion mechanism that is used for flexible glue of breathing machine fan to overlap and breathing machine |
| CN201520408641.0U Active CN205073449U (en) | 2014-12-18 | 2014-12-18 | A make an uproar cabin and water conservancy diversion mechanism fall for breathing machine fan |
Country Status (1)
| Country | Link |
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| CN (3) | CN204319449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105435346A (en) * | 2015-12-29 | 2016-03-30 | 天津市普瑞仪器有限公司 | Full electric control type compact breathing machine |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131154A (en) * | 2017-04-28 | 2017-09-05 | 广东威灵电机制造有限公司 | Blower fan system and electric device |
| CN209204371U (en) * | 2018-08-03 | 2019-08-06 | 深圳融昕医疗科技有限公司 | Denoising device, the gas circuit with the denoising device and the ventilator with the gas circuit |
| CN109200414B (en) * | 2018-11-22 | 2024-02-09 | 广东欧格斯科技有限公司 | Noise-reduction breathing machine system |
| CN112138253B (en) * | 2019-06-28 | 2023-08-08 | 深圳市大雅医疗技术有限公司 | Rectifying device and breathing machine |
| CN114458625A (en) * | 2022-03-03 | 2022-05-10 | 深圳乐居智能电子有限公司 | Air inlet cover, fan assembly, air duct structure and floor sweeping robot |
-
2014
- 2014-12-18 CN CN201420807520.9U patent/CN204319449U/en active Active
- 2014-12-18 CN CN201520408642.5U patent/CN205025827U/en active Active
- 2014-12-18 CN CN201520408641.0U patent/CN205073449U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105435346A (en) * | 2015-12-29 | 2016-03-30 | 天津市普瑞仪器有限公司 | Full electric control type compact breathing machine |
| CN105435346B (en) * | 2015-12-29 | 2017-10-27 | 天津市普瑞仪器有限公司 | Full electric control type compact breathing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205073449U (en) | 2016-03-09 |
| CN205025827U (en) | 2016-02-10 |
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