CN201021670Y

CN201021670Y - Voltage stabilized fan

Info

Publication number: CN201021670Y
Application number: CNU2007200049278U
Authority: CN
Inventors: 尤景良; 郑耀明; 赖恭宽
Original assignee: Apex Medical Corp
Current assignee: Wellell Inc
Priority date: 2007-02-13
Filing date: 2007-02-13
Publication date: 2008-02-13
Anticipated expiration: 2017-02-13

Abstract

The utility model is a regulated voltage fan, in particular to a pedestal with an extended neck, a pyramidal structured fan assembly and a shell matched with the fan assembly, since the extended neck is arranged, and the pyramidal shaped fan assembly is arranged, when the fan assembly is operated, the flow of the air flow can firstly circumambulate space between the shell and the extended neck, then the air flow can flow out from the air outlet of the fan; since the airflow does not flow out directly from the air outlet, thereby the wind pressure measured at air outlet is more stable, so that the wind pressure can be applied to the respirator in the breathing apparatus which is used by the patient, at the same time, since the wind pressure is quite stable, the breathing fluency of the patient can not be influenced, so that over large pressure change can not be produced because of the expiration of the patient when the fan operates as a whole, so as to achieve the goal of regulating voltage.

Description

The constant-voltage type blower

Technical field

The utility model is about a kind of blower, especially a kind of blower of tool stabilizing voltage characteristic.

Background technique

Existing blower normally directly is provided with a fan in the content of housing, the air-flow trend of fan then is directly with the exhaust outlet of blower and link to each other, so when fan in when operation, the air-flow that fan produced is able to directly be flowed out by the exhaust outlet place, obtain bigger air current flow therefrom, and the blast variation that therefore it produced is bigger; Bigger thus blast variation, the user then can be used for this kind blower the drying program of article processing procedure or the program that is used for heating.

Yet, if this type of blower is used for resuscitation apparatus when the stroke of patient's oxygen is provided, then be significantly inapplicable, because during in user mode, the effect of blower is to be to provide patient lasting and continual oxygen at resuscitation apparatus, and when oxygen is provided, patient is because constantly there is action air-breathing and venting one's pent-up feelings, so when patient in the time venting one's pent-up feelings, if the blast that blower produced change is big, then can cause the difficulty of patient on feeling elated and exultant;

Moreover, because the gas that patient is spued in the stroke of feeling elated and exultant is that the airflow direction of agitating with blower is opposite, so that often patient is in the time venting one's pent-up feelings, its blast can be because of the generation of inverted draft (feeling elated and exultant), and significantly reduce, so that it has bigger changes in amplitude on pressure.

In addition, because existing blower is in when running, it is because there is wind to cut the relation of sound, and it can make a large amount of noises, no matter so that all can cause lasting influence to the patient in using on psychological or the physiology.

The model utility content

The purpose of this utility model is to provide a kind of constant-voltage type blower, and it can not produce the blast of cataclysm amount when running, and also can not produce the variation in pressure than the cataclysm amount because of user's use.

For achieving the above object, the constant-voltage type blower that provides of the utility model has:

One base, it is to have one to extend neck, and is to have formed an air channel between this extension neck and base, and is provided with a following exhaust outlet that is interconnected with this air channel in a side of base;

One fan assembly, it firmly is located in the top of this extension neck; And

One housing, it is to mutually combine with base, and should extend neck and this fan assembly is coated, it has one and the last exhaust outlet that matches of this time exhaust outlet.

Described constant-voltage type blower, wherein this fan assembly has taper top surface, and a flat bottom surface, and this housing has a loudspeaker face that is cooperating this surface, taper top.

Described constant-voltage type blower, wherein this fan assembly has surface, taper top, and a flat bottom surface, and this housing has one and cooperating the loudspeaker face on this surface, taper top, and is 0.3-15mm at interval between the interior sidewall surface of this taper surface, top and loudspeaker face.

Described constant-voltage type blower, wherein this fan assembly has the plural pieces blade, and each blade is away from this exhaust outlet.

By enforcement of the present utility model, when fan assembly in when running, the mobile meeting of air-flow is gone ahead of the rest detouring housing and extend gap between neck is just flowed out by the exhaust outlet of blower thereafter; Because air-flow is not directly to be flowed out by exhaust outlet, the blast that records in the exhaust outlet place is comparatively stable, so that the wind that it produced is cut sound is less, so that the noise of integral body is also less, and reaches quiet purpose.

Simultaneously, because pressure output is stable, thus can not influence the smoothness of patient when exhaling, so that blower integral body can not produce excessive variation in pressure because of patient's expiration, and reach the purpose of voltage stabilizing when running.

Description of drawings

Fig. 1: be the three-dimensional exploded view of constant-voltage type blower provided by the utility model.

Fig. 2: after constant-voltage type blower provided by the utility model combination, the stereo appearance figure that housing is removed.

Fig. 3: be the stereogram of constant-voltage type blower provided by the utility model.

Embodiment

The accompanying drawing 1 that provides referring to the utility model please, wherein be depicted as three-dimensional exploded view of the present utility model, wherein, constant-voltage type blower provided by the utility model has one and is provided with the base 10 that extends neck 11, the fan assembly 20 of a cone structure, and a housing 30 that is cooperating this fan assembly.

This extension neck 11 is directly extended upward by this

base

10, and and 10 of bases then formed an air channel 12, and be provided with exhaust outlet 13 at these 12 places, air channel.This extension neck 11 be one by this base 10 upwardly extending Cylindrical object.

This fan assembly 20 has taper top surface 21, and a flat bottom surface 22, and

surface

21 and 22 of planar base surfaces have then formed the blade 23 of plural pieces above taper.

The central authorities of this housing 30 have formed a scavenge port 31, and have then formed exhaust outlet 32 in the one side.Surface, top that it should be noted that this housing 30 is one to cooperate the loudspeaker face 33 on surface, this fan assembly 20 tapers top 21.

Please be simultaneously referring to shown in Fig. 1,2,3, when constant-voltage type blower provided by the utility model in when combination, can see this fan assembly 20 and be directly with screw rod A after passing this bottom surface 22, and be screwed on together with this extension neck 11, since this screw rod A with this bottom surface 22 and this bottom surface 22 when mutually combining with this extension neck 11, the adding of pad and bearing is all arranged, so this fan assembly 20 still can freely rotate, and blade 23 meetings of this fan assembly 20 are raised because of this extension neck 11, and away from the following exhaust outlet 13 shown in the figure; Thereafter, then this housing 30 is locked above this base 10, and should be gone up exhaust outlet 3

2 and down exhaust outlet 13 form a complete exhaust outlet B.

Please pay special attention to shown in Figure 3, wherein at constant-voltage type blower provided by the utility model after combination finishes, can see this fan assembly 20 and be and 30 of this housings still have a gap, simultaneously, the crack height H is between 0.3-15mm between between the surface, inside of surface 21, the taper of this fan assembly 20 top and these housing 30 loudspeaker faces 33.

Under the restriction of this condition, can see when fan assembly 20 in when running, the air-flow of its disturbance can directly touch the interior sidewall surface at fan assembly 20 and housing 30, thereafter then again along the interior sidewall surface of housing 30 with extend neck 11 formed gaps, then be only at last in the aforesaid air channel 12 of inflow, and flow out by this exhaust outlet B.

Because air-flow is not directly to be flowed out by exhaust outlet, and is comparatively stable at the blast that the B of exhaust outlet place is measured,,, and reach quiet purpose so that the noise of integral body is also less so that the wind that it produced is cut sound is less.

Simultaneously, because delivery pressure is stable, do not utilize scavenge port 31 to do the action of ventilation so can not influence patient, so the smooth degree when it is breathed is kept, so that blower integral body can not produce excessive variation in pressure because of patient's expiration, and reach the purpose of voltage stabilizing when running.

Claims

1. constant-voltage type blower is characterized in that having:

One base, it has one and extends neck, and should extend and form an air channel between neck and base, and is provided with one and the following exhaust outlet that is interconnected of this air channel in a side of base;

One fan assembly, it firmly is located in the top of this extension neck; And

One housing, itself and base mutually combine, and should extend neck and this fan assembly is coated, and it has a last exhaust outlet that matches with this time exhaust outlet.

2. constant-voltage type blower as claimed in claim 1 is characterized in that, wherein this fan assembly has taper top surface, and a flat bottom surface, and this housing has a loudspeaker face that is cooperating this surface, taper top.

3. constant-voltage type blower as claimed in claim 1, it is characterized in that, wherein this fan assembly has surface, taper top, an and flat bottom surface, and this housing has one and is cooperating the loudspeaker face on this surface, taper top, and is interval 0.3-15mm between the interior sidewall surface of this taper surface, top and loudspeaker face.

4. constant-voltage type blower as claimed in claim 1 is characterized in that wherein this fan assembly has the plural pieces blade, and each blade is away from this exhaust outlet.

5. constant-voltage type blower as claimed in claim 2 is characterized in that wherein this fan assembly has the plural pieces blade, and each blade is away from this exhaust outlet.

6. constant-voltage type blower as claimed in claim 3 is characterized in that wherein this fan assembly has the plural pieces blade, and each blade is away from this exhaust outlet.