CN208831281U

CN208831281U - A kind of air guide structure of foldable fan

Info

Publication number: CN208831281U
Application number: CN201820749503.2U
Authority: CN
Inventors: 应辉
Original assignee: 应辉
Current assignee: Zhejiang crossbow brand electric appliance Co.,Ltd.
Priority date: 2018-05-18
Filing date: 2018-05-18
Publication date: 2019-05-07
Anticipated expiration: 2028-05-18

Abstract

The utility model relates to a kind of air guide structures of foldable fan, including pedestal and annular nozzle, base-plates surface is equipped with air flow inlet, and airflow channel and impeller and motor to generate air-flow are equipped in pedestal, and annular nozzle is equipped with the inner passage for receiving air-flow and the exhaust outlet of transmitting air-flow；Annular nozzle is additionally provided with two rounded inlet ends in end face, there is the vent matched with annular nozzle inlet end in pedestal, it can be relatively rotated between the inlet end and vent of annular nozzle, the inlet end of vent is connected with the outlet in pedestal interior air-flow channel, and two outlet sides of vent are connected with the inlet end of annular nozzle；It is equipped with the flow distribution plate for axially inwardly extending to vent aft bulkhead by inlet end port in the vent, the inner space of vent is divided into left and right two mutual disconnected autonomous channels whereby.The utility model can prevent air-flow from running helter-skelter in vent, thus improve nozzle outlet efficiency, reduce fan noise, ensure air-flow output uniformly etc..

Description

A kind of air guide structure of foldable fan

Technical field

The utility model relates to fan arts, more particularly, to a kind of air guide structure of foldable fan.

Background technique

At present, various blade-free fan structures are numerous.As Chinese patent 201120139067.5 just propose it is a kind of " can Collapsible fan without blades ", Foldable bladeless fan disclosed in the technical solution, including the base for generating compressed air stream Seat and the nozzle for spraying compressed air stream, and pressurized airflow path is connected between the pedestal and nozzle, the pedestal The interior motor equipped with impeller and for driving the impeller rotation, the pressurized airflow path have inlet end and exhaust end, institute It states inlet end and connects the pedestal, the nozzle connection exhaust end has pivotal part, and the nozzle passes through the pivot Part is rotatably connected in the exhaust end.Whereby, the nozzle of the utility model can make very big angle around airflow channel by pivotal part The pitching of degree rotates, and the adjustment demand for making it meet user to airflow direction when fan leaves unused, can preferably roll over nozzle Stack flat, saving occupied space.But it has the disadvantage that due to not setting drainage mechanism in the pivotal part in said fans, when When air-flow enters the pivotal part of threeway shape, air-flow can run helter-skelter in pivotal part, on the one hand greatly reduce outlet efficiency, separately On the one hand biggish noise can also be generated.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art, and providing one kind can prevent air-flow in vent In run helter-skelter, to improve nozzle outlet efficiency, reduce fan noise, ensure that air-flow exports the wind-guiding knot of uniform foldable fan Structure.

The purpose of this utility model is achieved by the following technical programs:

A kind of air guide structure of foldable fan, including pedestal and annular nozzle, base-plates surface are equipped with air flow inlet, pedestal Interior to be equipped with airflow channel and impeller and motor to generate air-flow, annular nozzle is equipped with the inner passage for receiving air-flow With the exhaust outlet of transmitting air-flow；The annular nozzle is additionally provided with two rounded inlet ends in end face, have in the pedestal with The vent that annular nozzle inlet end matches can relatively rotate between the inlet end and vent of annular nozzle, vent into Gas end is connected with the outlet in pedestal interior air-flow channel, and two outlet sides of vent are connected with the inlet end of annular nozzle；It is described logical The flow distribution plate that vent aft bulkhead is axially inwardly extended to by inlet end port is equipped in wind part, it is whereby that the inside of vent is empty Between be divided into left and right two mutual disconnected autonomous channels.

Further, the rear end sides of the flow distribution plate are respectively equipped with one and lead the air-flow entered from the inlet end of vent It flow to the guide face of outlet side.

Preferably, the guide face is the globoidal structure that the outlet extreme direction from flow distribution plate side to vent extends.

It selects again, the guide face is the bevel structure that the outlet extreme direction from flow distribution plate side to vent extends.

Further, the floor projection of the guide face is in wave shape or isosceles triangle, the side of wide end and flow distribution plate Connection.

Further, the front end face of the flow distribution plate is concordant with the inlet end end face of vent.

Further, the inlet end outer wall of the vent be equipped with upper and lower two positioning wedged blocks, the two of the vent Circular orientation protrusion is respectively equipped on the outer wall of outlet side.

Compared with prior art, the utility model has the following beneficial effects:

The utility model will be separated into two mutual disconnected autonomous channels, air-flow due to flow distribution plate inside vent When passing through vent, it can be transmitted respectively according to the path that two autonomous channels limit, not interfere with each other, can effectively avoid Run helter-skelter phenomenon of the air-flow after entering vent improves the efficiency of transmission of vent, and then improve on the one hand concentrate wind-force On the other hand the outlet efficiency of nozzle can also reduce noise with steady air flow, another further aspect may also be ensured that the equal of air-flow output Even property improves user experience.In addition, the utility model can be further in the guide face structure being arranged in two individual air stream channels Dredging flow reaches the purpose for further increasing outlet efficiency and noise reduction to reduce windage.

Detailed description of the invention

Fig. 1 is the front schematic view of the utility model foldable fan.

Fig. 2 is the schematic cross-sectional view of the utility model foldable fan.

Fig. 3 is the structural schematic diagram of the utility model annular nozzle and vent.

Fig. 4 is a kind of stereoscopic schematic diagram of embodiment of the utility model vent.

Fig. 5 is a kind of schematic top plan view of embodiment of the utility model vent.

Fig. 6 is the schematic cross-sectional view of A-A in Fig. 5.

Fig. 7 is the schematic cross-sectional view of B-B in Fig. 5.

Fig. 8 is the stereoscopic schematic diagram of another embodiment of the utility model vent.

Fig. 9 is the schematic top plan view of another embodiment of the utility model vent.

Figure 10 is the schematic cross-sectional view of C-C in Fig. 9.

Figure 11 is the schematic cross-sectional view of D-D in Fig. 9.

Specific embodiment

The embodiment provided with reference to the accompanying drawing is described in further detail the utility model.

As shown in Figures 1 to 7, as an embodiment of the present invention, the air guide structure of the foldable fan, including Pedestal 1 and annular nozzle 2,1 surface of pedestal are equipped with air flow inlet 10, airflow channel 11 are equipped in pedestal 1 and to generate air-flow Impeller 12 and motor 13, annular nozzle 2 be equipped with for receiving air-flow inner passage 20 and transmitting air-flow exhaust outlet 23. Annular nozzle 2 is additionally provided with two rounded inlet ends in end face 21,22, has in pedestal 1 and matches with 2 inlet end of annular nozzle Vent 3, can be relatively rotated between the inlet end 21,22 and vent 3 of annular nozzle 2, the inlet end 31 and pedestal of vent 3 The outlet in 1 interior air-flow channel 11 is connected, and two outlet sides 32 of vent 3 are connected with the inlet end 21,22 of annular nozzle 2.Ventilation The flow distribution plate 4 that vent aft bulkhead 33 is axially inwardly extended to by 31 port of inlet end is equipped in part 3, whereby by vent 3 Inner space is divided into left and right two mutual disconnected autonomous channel 3a, 3b, and air-flow, can be according to when passing through vent 3 thus The path that two autonomous channels 3a, the 3b are limited is transmitted respectively, is not interfere with each other, so that it is logical in entrance to can effectively avoid air-flow Phenomenon of running helter-skelter after wind part.

Preferably, in the present embodiment, 1 interior air-flow channel 11 of pedestal can by impeller 12 and motor 13 shell 110 and set The wind-collecting cover 111 set in 110 outlet air end of the shell is formed, and the then specifically outlet air with wind-collecting cover 111 of the inlet end 31 of vent 3 Mouth is connected.

Preferably, the front end face of flow distribution plate 4 is concordant with the inlet end end face of vent 3.

Further, the inlet end outer wall of vent 3 is equipped with upper and lower two positioning wedged blocks 300, and the two of vent 3 go out A circular orientation protrusion 301 is respectively equipped on the outer wall of gas end, positioning wedged block 300 and circular orientation protrusion 301 are used to vent Positioning when assembly.

As shown in Fig. 8 to 11, as the utility model further embodiment, the air guide structure of the foldable fan is also Being respectively equipped with one in the rear end sides of flow distribution plate 4 will be from the air flow guiding that the inlet end 31 of vent 3 enters to outlet side 32 Guide face 5.When air-flow enters vent, guide face meeting dredging flow improves vent outlet air efficiency to reduce windage, Noise can also be reduced simultaneously.

Preferably, as shown in Figure 10, the guide face 5 is that the outlet extreme direction from 4 side of flow distribution plate to vent 3 extends Globoidal structure.Also, it in order to preferably form the globoidal structure, may be designed as in arc in the middle part of the aft bulkhead 33 of vent 3 Concavity (as shown in Figure 9).

It selects again, the guide face 5 is the bevel structure that the outlet extreme direction from 4 side of flow distribution plate to vent 3 extends (not illustrating in figure).

Preferably, the floor projection of the guide face 5 is in wave shape or isosceles triangle, the side of wide end and flow distribution plate 4 Connection.

As described above, the only preferred embodiment of the utility model is real when that cannot limit the utility model with this The range applied, i.e., generally according to simple equivalence changes made by present utility model application the scope of the patents and utility model description With modification, all still belong in the range of the utility model patent covers.

Claims

1. a kind of air guide structure of foldable fan, including pedestal and annular nozzle, base-plates surface is equipped with air flow inlet, in pedestal Equipped with airflow channel and impeller and motor to generate air-flow, annular nozzle be equipped with for receiving air-flow inner passage and Emit the exhaust outlet of air-flow；The annular nozzle is additionally provided with two rounded inlet ends in end face, has in the pedestal and ring The vent that shape nozzle inlet end matches can relatively rotate, the air inlet of vent between the inlet end and vent of annular nozzle End is connected with the outlet in pedestal interior air-flow channel, and two outlet sides of vent are connected with the inlet end of annular nozzle；Its feature exists In: the flow distribution plate that vent aft bulkhead is axially inwardly extended to by inlet end port is equipped in the vent, it whereby will ventilation The inner space of part is divided into left and right two mutual disconnected autonomous channels.

2. a kind of air guide structure of foldable fan according to claim 1, it is characterised in that: the rear end two of the flow distribution plate Side is respectively equipped with one will be from the air flow guiding that the inlet end of vent enters to the guide face of outlet side.

3. a kind of air guide structure of foldable fan according to claim 2, it is characterised in that: the guide face is from shunting The globoidal structure that plate side extends to the outlet extreme direction of vent.

4. a kind of air guide structure of foldable fan according to claim 2, it is characterised in that: the guide face is from shunting The bevel structure that plate side extends to the outlet extreme direction of vent.

5. according to a kind of air guide structure of foldable fan of Claims 2 or 3 or 4, it is characterised in that: the guide face Floor projection is in wave shape or isosceles triangle, and the side of wide end and flow distribution plate connects.

6. a kind of according to claim 1 or 2 or 3 or 4 air guide structures of foldable fan, it is characterised in that: the shunting The front end face of plate is concordant with the inlet end end face of vent.

7. a kind of according to claim 1 or 2 or 3 or 4 air guide structures of foldable fan, it is characterised in that: the ventilation The inlet end outer wall of part is equipped with upper and lower two positioning wedged blocks, is respectively equipped with a ring on two outlet side outer walls of the vent Shape positioning protrusion.