CN204327595U - Small-sized fan used for respirators - Google Patents
Small-sized fan used for respirators Download PDFInfo
- Publication number
- CN204327595U CN204327595U CN201420555691.7U CN201420555691U CN204327595U CN 204327595 U CN204327595 U CN 204327595U CN 201420555691 U CN201420555691 U CN 201420555691U CN 204327595 U CN204327595 U CN 204327595U
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- China
- Prior art keywords
- cover plate
- upper cover
- spiral case
- impeller
- linear leaf
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Abstract
The utility model small-sized fan used for respirators relates to a kind of blower fan for respiratory machine.Its objective is the small-sized fan used for respirators that a kind of structure is simple, noise is little in order to provide.The utility model small-sized fan used for respirators comprises spiral case lid, spiral case, high-speed brushless motor, impeller, bottom spiral case, positioning hole is set, high-speed brushless motor is at positioning hole internal fixtion, impeller comprises upper cover plate, lower cover plate, multiple circular arc linear leaf, upper cover plate arranges center hole, upper cover plate is cambered plate, the center of upper cover plate is higher than the edge of upper cover plate, multiple circular arc linear leaf is evenly arranged between upper cover plate and lower cover plate, the upper end of each linear leaf is all fixedly connected with the lower end surface of upper cover plate, the lower end of each linear leaf is all fixedly connected with the upper-end surface of lower cover plate, upper cover plate, multiple relief opening is formed between lower cover plate and multiple linear leaf, high-speed brushless electric machine main shaft passes impeller central and fixes with impeller, spiral case and spiral case cover buckle are closed.
Description
Technical field
The utility model relates to a kind of blower fan, particularly relates to a kind of blower fan for respiratory machine.
Background technique
The use of respiratory machine is more and more extensive, respiratory machine is use when treating sleeping patient night, noise is very large, blower fan is unique parts producing noise inside respiratory machine, blower fan is when providing maximum pressure and flow velocity for respiratory machine, the wheel speed of blower fan reaches 28000 and to turn left the right side, under so high rotating speed, impeller and air friction can produce very large vibrating noise, have a strong impact on the normal use of respiratory machine.
Model utility content
The technical problems to be solved in the utility model is to provide the small-sized fan used for respirators that a kind of structure is simple, noise is little.
The utility model small-sized fan used for respirators, comprise spiral case lid, spiral case, high-speed brushless motor, impeller, bottom described spiral case, positioning hole is set, described high-speed brushless motor is at positioning hole internal fixtion, described impeller comprises upper cover plate, lower cover plate, multiple circular arc linear leaf, described upper cover plate arranges center hole, described upper cover plate is cambered plate, the center of described upper cover plate is higher than the edge of upper cover plate, described multiple circular arc linear leaf is evenly arranged between upper cover plate and lower cover plate, the upper end of each linear leaf is all fixedly connected with the lower end surface of upper cover plate, the lower end of each linear leaf is all fixedly connected with the upper-end surface of lower cover plate, described upper cover plate, multiple relief opening is formed between lower cover plate and multiple linear leaf, described high-speed brushless electric machine main shaft passes impeller central and fixes with impeller, described spiral case and spiral case cover buckle are closed.
The utility model small-sized fan used for respirators, a circular arc short blade is provided with between wherein said every two linear leafs, multiple short blade is evenly arranged along the edge of lower cover plate, the upper end of each short blade is all fixedly connected with the lower end surface of upper cover plate, and the lower end of each short blade is all fixedly connected with the upper-end surface of lower cover plate.If short blade can further improve the intensity of impeller, can prevent quivering, anti-resonance, reduce noise and also can ensure that air inlet is smooth and easy simultaneously.
The utility model small-sized fan used for respirators, the material of wherein said impeller is PC40%PP60%.The bulk strength of impeller can be improved, reduce vibrations.
The utility model small-sized fan used for respirators, wherein said impeller diameter is less than spiral case, spiral case lid diameter, and described vane edge and spiral case inwall form gap, and described gap is 0.5mm.Between vane edge and spiral case inwall, gap is less, can reduce back pressure noise.
The utility model small-sized fan used for respirators, the height at wherein said relief opening edge is 4.5mm.
The utility model small-sized fan used for respirators, the quantity of wherein said linear leaf and short blade is 7.
The utility model small-sized fan difference from prior art used for respirators is that the utility model comprises spiral case lid, spiral case, high-speed brushless motor, impeller, and structure is simple; Upper cover plate arranges center hole, and upper cover plate is cambered plate, and the center of upper cover plate is higher than the edge of upper cover plate, air-flow is come in from suction port, via the center hole of upper cover plate, then discharges through multiple relief opening, because the center of upper cover plate is higher than the edge of upper cover plate, air-flow is pressurizeed gradually, reduces noise.
Below in conjunction with accompanying drawing, small-sized fan used for respirators of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model small-sized fan used for respirators;
Fig. 2 is the plan view of impeller in the utility model small-sized fan used for respirators;
Fig. 3 is the plan view (after removing upper cover plate) of Fig. 2.
Embodiment
As shown in Figure 1, the utility model small-sized fan used for respirators comprises impeller 1, spiral case lid 2, spiral case 3, high-speed brushless motor 4, impeller 1 diameter is less than spiral case lid 2, spiral case 3 diameter, impeller 1 edge and spiral case 3 inwall form gap, gap is 0.5mm, the material of impeller 1 is that (wherein PC is polycarbonate (PC) to PC40%PP60%, PP is polypropylene), positioning hole 31 is set bottom spiral case 3, positioning hole 31 is for locating the position of high-speed brushless motor 4, high-speed brushless motor 4 is screwed in positioning hole 31, impeller 1 comprises upper cover plate 11, lower cover plate 12, 7 circular arc linear leafs 13, 7 circular arc short blades 14, upper cover plate 11 is arranged center hole 15, upper cover plate 11 is cambered plate, the center of upper cover plate 11 is higher than the edge of upper cover plate 11, multiple circular arc linear leaf 13 is evenly arranged between upper cover plate 11 and lower cover plate 12, the upper end of each linear leaf 13 is all fixedly connected with the lower end surface of upper cover plate 11, the lower end of each linear leaf 13 is all fixedly connected with the upper-end surface of lower cover plate 12, high-speed brushless motor 4 main shaft is passed impeller 1 center and is fixed by screw and impeller 1, spiral case 3 and spiral case lid 2 fasten and are screwed.
Shown in composition graphs 2, upper cover plate 11, form multiple relief opening 16 between lower cover plate 12 and multiple linear leaf 13, the height at relief opening 16 edge is 4.5mm.
Shown in composition graphs 3, a circular arc short blade 14 is provided with between every two linear leafs 13, multiple short blade 14 is evenly arranged along the edge of lower cover plate 12, the upper end of each short blade 14 is all fixedly connected with the lower end surface of upper cover plate 11, and the lower end of each short blade 14 is all fixedly connected with the upper-end surface of lower cover plate 12.Short blade is set between every two linear leafs, the intensity of impeller can be strengthened on the one hand, make the edge of impeller and the most weak place of intensity have support, can prevent quivering, anti-resonance, reduce noise.On the other hand, if short blade but not linear leaf can not cause air inlet to have some setbacks.
In FIG, the center of spiral case lid 2 arranges suction port 17, the outer surface of spiral case 3 is provided with the air outlet 18 be communicated with spiral case 3 inside, during use, air draught sucks from suction port 17 by this blower fan, and air is discharged warp after air pressurized by the High Rotation Speed of impeller 1 by relief opening 16, air outlet 18.In air pressurized process, because this blower fan upper cover plate is cambered plate, the center of upper cover plate is higher than the edge of upper cover plate, and the height of relief opening is also less, and air-flow is pressurizeed gradually, instead of direct weighting, greatly reduces noise.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (5)
1. a small-sized fan used for respirators, it is characterized in that: comprise impeller (1), spiral case lid (2), spiral case (3), high-speed brushless motor (4), described spiral case (3) bottom arranges positioning hole (31), described high-speed brushless motor (4) is at positioning hole (31) internal fixtion, described impeller (1) comprises upper cover plate (11), lower cover plate (12), multiple circular arc linear leaf (13), described upper cover plate (11) is arranged center hole (15), described upper cover plate (11) is cambered plate, the center of described upper cover plate (11) is higher than the edge of upper cover plate (11), described multiple circular arc linear leaf (13) is evenly arranged between upper cover plate (11) and lower cover plate (12), the upper end of each linear leaf (13) is all fixedly connected with the lower end surface of upper cover plate (11), the lower end of each linear leaf (13) is all fixedly connected with the upper-end surface of lower cover plate (12), described upper cover plate (11), multiple relief opening (16) is formed between lower cover plate (12) and multiple linear leaf (13), described high-speed brushless motor (4) main shaft passes impeller (1) center and fixes with impeller (1), described spiral case (3) and spiral case lid (2) fasten.
2. small-sized fan used for respirators according to claim 1, it is characterized in that: between described every two linear leafs (13), be provided with a circular arc short blade (14), multiple short blade (14) is evenly arranged along the edge of lower cover plate (12), the upper end of each short blade (14) is all fixedly connected with the lower end surface of upper cover plate (11), and the lower end of each short blade (14) is all fixedly connected with the upper-end surface of lower cover plate (12).
3. small-sized fan used for respirators according to claim 2, it is characterized in that: described impeller (1) diameter is less than spiral case (3), spiral case lid (2) diameter, impeller (1) edge and spiral case (3) inwall form gap, and described gap is 0.5mm.
4. small-sized fan used for respirators according to claim 3, is characterized in that: the height at described relief opening (16) edge is 4.5mm.
5. small-sized fan used for respirators according to claim 4, is characterized in that: the quantity of described linear leaf (13) and short blade (14) is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555691.7U CN204327595U (en) | 2014-09-25 | 2014-09-25 | Small-sized fan used for respirators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555691.7U CN204327595U (en) | 2014-09-25 | 2014-09-25 | Small-sized fan used for respirators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327595U true CN204327595U (en) | 2015-05-13 |
Family
ID=53163962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420555691.7U Expired - Fee Related CN204327595U (en) | 2014-09-25 | 2014-09-25 | Small-sized fan used for respirators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327595U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020174A (en) * | 2015-07-23 | 2015-11-04 | 深圳市帝迈生物技术有限公司 | Small low-noise centrifugal fan and breathing machine comprising same |
| CN105275845A (en) * | 2015-11-27 | 2016-01-27 | 吉林省沃鸿医疗器械制造有限公司 | Draught fan |
| CN113018613A (en) * | 2019-12-24 | 2021-06-25 | 南京理工大学 | Impeller device for generating positive pressure gas and breathing machine |
-
2014
- 2014-09-25 CN CN201420555691.7U patent/CN204327595U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020174A (en) * | 2015-07-23 | 2015-11-04 | 深圳市帝迈生物技术有限公司 | Small low-noise centrifugal fan and breathing machine comprising same |
| CN105275845A (en) * | 2015-11-27 | 2016-01-27 | 吉林省沃鸿医疗器械制造有限公司 | Draught fan |
| CN105275845B (en) * | 2015-11-27 | 2017-11-07 | 吉林省沃鸿医疗器械制造有限公司 | Blower fan |
| CN113018613A (en) * | 2019-12-24 | 2021-06-25 | 南京理工大学 | Impeller device for generating positive pressure gas and breathing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171227 Address after: 102200 Yongan Road, Changping District science and Technology Park, No. 45, 205 and 209, Beijing Patentee after: Liaison medical wearable equipment technology (Beijing) Co., Ltd. Address before: 102200 Yongan Road, Changping science and Technology Park, Changping District, Beijing, No. 45 Patentee before: Beijing Dehair Medical Tech. Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20190925 |