CN205388048U - Noise reduction type turbine fan - Google Patents
Noise reduction type turbine fan Download PDFInfo
- Publication number
- CN205388048U CN205388048U CN201521133260.2U CN201521133260U CN205388048U CN 205388048 U CN205388048 U CN 205388048U CN 201521133260 U CN201521133260 U CN 201521133260U CN 205388048 U CN205388048 U CN 205388048U
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- turbofan
- box body
- reducing type
- noise
- noise reducing
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Abstract
The utility model discloses a type of making an uproar turbofan falls, including box body, lid, set up the box body in turbofan, turbofan set up between two parties the box body in and keep the interval in order to constitute the air cavity with the inner wall the lateral wall of box body on be formed with the exhaust vent that turbofan's air outlet corresponds, be provided with the inlet port that two at least intervals set up on the box body lateral wall adjacent with the exhaust vent. The utility model discloses set up turbofan between two parties to make turbofan constitute the air cavity with the box body inner wall all around, adopt the mode that sets up of a plurality of inlet ports moreover, guarantee that the air inlet is even and sufficient, reduce the air inlet noise, simultaneously, because turbofan is last air inlet, the air current reentrant air intake behind the air cavity equipartition, effectively avoided squeaking, noise abatement's production.
Description
Technical field
This utility model relates to respirator technical field, particularly relates to a kind of noise reducing type turbofan.
Background technology
At present, motor is used to drive the respirator producing source of the gas the most general with noninvasive ventilator.Noninvasive ventilator for breathing the treatment of illness to sleep apnea syndrome and COPD (CAO disease) etc..The kind of currently a popular noninvasive ventilator mainly has CPAP (malleation providing stable during patient respiratory exports), AUTOCPAP (to provide malleation to export to patient.When the airway resistance of patient increases and has influence on eupnea, it is normal to patient respiratory that respirator improves output pressure automatically；When patient respiratory is normal, output pressure can be reduced to the threshold pression maintaining patient's eupnea by respirator), Bi-LevelCPAP (provides the output of higher malleation, provides relatively low malleation output > etc. during expiration during patient breaths.Occur that SARS (severe acute respiratory syndrome) was once widely used period in China.Product is just comfortable towards use, operating noise is punished, volume is little, lightweight direction is developed.
The feature of noninvasive ventilator is to patient treatment, hurtless measure by nasal mask or oral nose mask.The blower fan of Use of respirator, including body, motor and impeller, impeller is rotated by driven by motor edge in body, and on body, the axis direction along impeller is provided with fan air inlet, and the tangential direction along impeller is provided with blower fan gas outlet.During motor work, owing to rotating speed is at thousands of to up to ten thousand revs/min, very strong noise can be produced.At present general adopting following methods to abate the noise, such as sound-absorbing, sound insulation, damping etc., but effect is still inconspicuous, and when increasing too much silencer mechanism, the heat radiation that can affect motor on the contrary is bad, then causes that serviceability is deteriorated, and arranges and there is potential safety hazard more.
Utility model content
The purpose of this utility model is for the technological deficiency existed in prior art, and provides a kind of noise reducing type turbofan.
Be the technical scheme is that by realizing the purpose of this utility model
A kind of noise reducing type turbofan, including box body, lid, it is arranged on the turbofan in described box body, described turbofan be centrally positioned in described box body and and inwall keep interval to constitute air cavity, the sidewall of described box body is formed the exhaust vent corresponding with the air outlet of described turbofan, the box side wall adjacent with exhaust vent is provided with the spaced air inlet of at least two.
Described air inlet is rectangle.
Described box body and the wallboard of lid include the elastic inner panel of inner side respectively, are disposed on rustless steel outside plate with described elastic inner panel, and are clamped in the noise reduction foam between elastic inner panel and rustless steel outside plate.
Described elastic inner panel is plastics or hard rubber material.
Described turbofan is fixed in box body by the shock structure at corner place, and the motor lower portion of described turbofan is provided with fin.
Being provided with shock-absorbing support plate on the base plate of described box body, described shock structure is fixed on shock-absorbing support plate.
Being provided with damping rubber nail on described shock-absorbing support plate, described damping rubber nails on end and keeps predetermined space with described motor bottom surface.
Also include being arranged in described box body and the motor of described turbofan is contained in it and constitutes the noise reduction foam ring of separate space, described box body and noise reduction foam ring are correspondingly provided with heat radiation air inlet and heat radiation steam vent.
Compared with prior art, the beneficial effects of the utility model are:
Turbofan is centrally located by this utility model, and make turbofan surrounding constitute air cavity with inboard wall of cartridge, and adopt the set-up mode of multiple air inlet, ensure that air intake is uniform and sufficient, reduce air intake noise, simultaneously, because turbofan is upper air inlet, enter back into air inlet after air-flow is uniform in air cavity, effectively prevent and utter long and high-pitched sounds, reduce the generation of noise.
Accompanying drawing explanation
Fig. 1 show the structural representation of noise reducing type turbofan of the present utility model；
Fig. 2 show the cross-sectional view of turbofan；
It it is internal structure schematic diagram described in Fig. 3.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
As Figure 1-3, noise reducing type turbofan of the present utility model includes top and is formed with the box body 1 of opening, in order to the lid (not shown) that the opening of described box body is covered, it is arranged on the turbofan 2 in described lid, described turbofan be centrally positioned in described box body 1 and and inwall keep interval to constitute air cavity, the sidewall of described box body is formed the exhaust vent 3 corresponding with described turbofan air outlet, the sidewall that described box body is adjacent with exhaust vent is provided with at least two air inlet 4.Preferably, described air inlet is rectangle.
Turbofan is centrally located, and make turbofan surrounding constitute air cavity with inboard wall of cartridge, and adopt the set-up mode of multiple air inlet, ensure that air intake is uniform and sufficient, reduce air intake noise, simultaneously, because turbofan is upper air inlet, enter back into air inlet after air-flow is uniform in air cavity, effectively prevent and utter long and high-pitched sounds, reduce the generation of noise.
Preferably, for avoiding noise outwards to transmit, described box body and the wallboard of lid include the elastic inner panel 11 of inner side, are disposed on rustless steel outside plate 12 with described elastic inner panel, and are clamped in the noise reduction foam between elastic inner panel and rustless steel outside plate.Described elastic inner panel is plastics or hard rubber material.Adopt three layers sound insulation, when blower fan operates, no matter it is blower fan self noise, or the pneumatic noise of inside, in dispersing, run into elastic inner panel rear portion be reflected back, a part is penetrated into outside elastic inner panel, subsequently into noise reduction foam, again weakened in the process noise intensity through noise reduction foam, finally arrived rustless steel outside plate, finally by a reflection part on rustless steel outside plate, such noise is reduced.
Further, connecting limit 21 and be fixed in box body by the shock structure 5 of corner in the middle of described turbofan 2, the motor lower portion of described turbofan is provided with fin 6.Turbofan is adopted the suspension type that four shock structures support, and so making the mechanical vibration of blower fan be isolated, making fan vibration outwards not spread out of, thus decreasing noise.
As a kind of better embodiment, the base plate of described box body is provided with shock-absorbing support plate 7, described turbofan is fixed on shock-absorbing support plate, it is provided with cushion etc. between described shock-absorbing support plate and the base plate of box body to shake with further abatement, meanwhile, being provided with damping rubber nail 8 on described shock-absorbing support plate, described damping rubber nails on end and keeps predetermined space with described motor bottom surface, such as 1-3mm, described damping rubber nail can be column, tower-like etc. to absorb vibrations as far as possible.
Turbofan operates under Single-chip Controlling, and noise in the running mostlys come from three aspects: a noise produced when being blower fan operating itself；Two is that the vibrations that blower fan produces in the running are spread out of by body；Three is the noise that air produces when being inhaled into, and this utility model has all done noise reduction process pointedly, effectively provides overall silence level.
As another better embodiment, also include being arranged in described box body and the motor of described turbofan is contained in it and constitutes the noise reduction foam ring 9 of separate space, described box body and noise reduction foam ring are correspondingly provided with heat radiation air inlet and heat radiation steam vent.Utilize noise reduction foam ring by motor independent isolating, reduce motor running noises and outwards transmit, and completely cut off motor heat, meanwhile, utilize heat radiation air inlet and the setting of heat radiation steam vent, motor is carried out air-cooled, effectively control motor heat, be suitable for its long-time steady operation, improve use sense and be subject to.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; under the premise without departing from this utility model principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. a noise reducing type turbofan, it is characterized in that, including box body, lid, it is arranged on the turbofan in described box body, described turbofan be centrally positioned in described box body and and inwall keep interval to constitute air cavity, the sidewall of described box body is formed the exhaust vent corresponding with the air outlet of described turbofan, the box side wall adjacent with exhaust vent is provided with the spaced air inlet of at least two.
2. noise reducing type turbofan as claimed in claim 1, it is characterised in that described air inlet is rectangle.
3. noise reducing type turbofan as claimed in claim 1, it is characterized in that, described box body and the wallboard of lid include the elastic inner panel of inner side respectively, are disposed on rustless steel outside plate with described elastic inner panel, and are clamped in the noise reduction foam between elastic inner panel and rustless steel outside plate.
4. noise reducing type turbofan as claimed in claim 3, it is characterised in that described elastic inner panel is plastics or hard rubber material.
5. noise reducing type turbofan as claimed in claim 1, it is characterised in that described turbofan is fixed in box body by the shock structure at corner place, and the motor lower portion of described turbofan is provided with fin.
6. noise reducing type turbofan as claimed in claim 5, it is characterised in that being provided with shock-absorbing support plate on the base plate of described box body, described shock structure is fixed on shock-absorbing support plate.
7. noise reducing type turbofan as claimed in claim 6, it is characterised in that be provided with damping rubber nail on described shock-absorbing support plate, described damping rubber nails on end and keeps predetermined space with described motor bottom surface.
8. noise reducing type turbofan as claimed in claim 1, it is characterized in that, also include being arranged in described box body and the motor of described turbofan is contained in it and constitutes the noise reduction foam ring of separate space, described box body and noise reduction foam ring are correspondingly provided with heat radiation air inlet and heat radiation steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521133260.2U CN205388048U (en) | 2015-12-29 | 2015-12-29 | Noise reduction type turbine fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521133260.2U CN205388048U (en) | 2015-12-29 | 2015-12-29 | Noise reduction type turbine fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205388048U true CN205388048U (en) | 2016-07-20 |
Family
ID=56381301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521133260.2U Active CN205388048U (en) | 2015-12-29 | 2015-12-29 | Noise reduction type turbine fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205388048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274273A (en) * | 2018-03-13 | 2019-09-24 | 宁波方太厨具有限公司 | A kind of noise reducing type range hood |
-
2015
- 2015-12-29 CN CN201521133260.2U patent/CN205388048U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274273A (en) * | 2018-03-13 | 2019-09-24 | 宁波方太厨具有限公司 | A kind of noise reducing type range hood |
| CN110274273B (en) * | 2018-03-13 | 2024-02-20 | 宁波方太厨具有限公司 | Noise-reducing type range hood |
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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: 20210924 Address after: Room 01-20, floor 9, building 4, zone 3, No. 186, South Fourth Ring West Road, Fengtai District, Beijing 100070 Patentee after: CSSC Haishen Medical Technology Co.,Ltd. Address before: 300000 No. 4, Haitai development second road, Huayuan Industrial Zone (outside the ring), Binhai high tech Zone, Binhai New Area, Tianjin Patentee before: TIANJIN PURUI INSTRUMENT Co.,Ltd. |