CN209053814U - Handheld fan - Google Patents
Handheld fan Download PDFInfo
- Publication number
- CN209053814U CN209053814U CN201821915524.3U CN201821915524U CN209053814U CN 209053814 U CN209053814 U CN 209053814U CN 201821915524 U CN201821915524 U CN 201821915524U CN 209053814 U CN209053814 U CN 209053814U
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- CN
- China
- Prior art keywords
- limiting section
- shell
- air
- impeller
- air duct
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a kind of Handheld fans, including shell and it is set in the housing the impeller that can simultaneously rotate relative to shell, the air outlet that the shell is equipped with air inlet and is oppositely arranged with air inlet, the impeller is between air inlet and air outlet, and grid disk is provided on the air inlet and air outlet, it is characterized by: being equipped with the pressurized part of opposite shell fixed setting on air-flow flow path, between the impeller and air outlet.The utility model is by the way that pressurized part to be set in shell, and air inlet and air outlet are provided with grid disk, and such pressurized part is protected by shell and is not easily susceptible to external force, prolongs the service life；And user can not touch impeller, and high-speed rotating flabellum is avoided to hurt user.
Description
Technical field
The utility model relates to small household appliances fields, and in particular to a kind of Handheld fan.
Background technique
Existing portable electric fan generally uses motor driven axial-flow leaf, and air flows into from the rear end of blade, passes through
Blade is flowed out after being boosted by the leading edge of blade.But after air enters fan blade, under the action of the centrifugal force, air is in when flowing out blade
Dispersion shape diffusion, the air-flow velocity so as to cause discharge flabellum reduces, and the distance flowed is shorter, and air-flow cannot be directed to facet
Product carries out heat convection, and the Energy Efficiency Ratio of electric fan reduces.
To solve the above problems, the patent application patent of Patent No. ZL01123837.2 (Publication No. CN1400396A)
A kind of " pressurized construction of fan " is disclosed, ventilation hole is set by a framework, which is air intake vent, the other end is outlet air
Mouthful；The air opening end is combined for bottom plate with engaging member, the air outlet of the ventilation hole of the framework or bottom plate be equipped with support plate for
Stator seat combines, and stator seat is articulated with the impeller that can be driven to rotate, and number pressurization piece is set between support plate and bottom plate.But the fan
Design structure it is not reasonable, will pressurization piece be directly arranged on bottom plate, if bottom plate or pressurization piece damage, entire bottom
Plate needs discard, and result in waste of resources；And this kind of set-up mode pressurization piece can be touched directly by user, be easy by
Damage；In addition, the blocking parts such as not set grid at air intake vent, and its blade velocity is very high when impeller rotation, accidentally touches
Actual bodily harm can be caused to user.
Or the patent application patent disclosure such as Patent No. ZL200510108830.7 (Publication No. CN1940308A)
A kind of " fan and its fan frame ", the fan have the plenum being located on pedestal, this kind of design method makes fan still
There are defects existing for aforementioned patent, and pressurization piece of the structure type of such plenum relative to sheet, supercharging effect are poor.
For another example the patent application patent disclosure of Patent No. ZL201710046179.8 (Publication No. CN106837832A)
" a kind of novel portable electric fan ", is equipped with pressurization basin close to blade profile edge on each blade, and pressurization basin makes to meet
Wind end face constitutes pressurization concave surface, and leeward end face is made to form pressurization convex surface, but the mode of this kind pressurization makes blade processing
Production is difficult, and supercharging effect is not ideal enough.
In addition, there has been no the pressurized constructions specifically for hand-held fan design at present, because holding fan volume and weight
Limitation, the pressurized construction of above-mentioned patent can not directly apply in hand-held fan.
Utility model content
First technical problem to be solved in the utility model is the status for the prior art, provides a kind of pressurization effect
The good Handheld fan of fruit.
Second technical problem to be solved in the utility model is the status for the prior art, provides a kind of plenum
Part is not easy impaired Handheld fan.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of Handheld fan, including shell
And be set in the housing and can opposite shell rotation impeller, the shell is oppositely arranged equipped with air inlet and with air inlet
Air outlet, the impeller are provided with grid disk between air inlet and air outlet on the air inlet and air outlet,
It is characterized in that: being equipped with the pressurized part of opposite shell fixed setting on air-flow flow path, between the impeller and air outlet.
For the ease of installation pressurized part and impeller, the pressurized part and impeller are placed in an opposite shell fixation and set
In the air duct set, on the pressurized part, the both ends open of the air duct is simultaneously respectively facing at both ends for the impeller rotational installation
Air inlet and air outlet.So first pressurized part and impeller can be installed on air duct, are then mounted as a whole in shell again, pacified
Dress is convenient；And air duct is the equal of an air duct, the slave air outlet blowout that wind-force can be made more to concentrate, to increase wind-force.
In order to make air duct is firm to be located in shell, the inner walls are equipped with the first limit to offset with air duct open end
Portion and the second limiting section to offset with air duct outer wall, and be convexly equipped on the air duct outer wall and the limit cooperation of the second limiting section
Third limiting section.First limiting section can prevent air duct from moving axially, and the second limiting section prevents air duct from moving radially, the second limiting section
Prevent air duct from circumferentially rotating with the cooperation of third limiting section.
In order to enable what air duct dismounted to be set in the housing, first limiting section is to extend internally from the periphery of grid disk
Annular flange.
Second limiting section and third limiting section can have a variety of structures form, and second limiting section is to be open towards air duct
Limiting slot, the third limiting section is the first convex block taken shape on air duct outer wall, and first convex block can be placed in limit
In slot；Or second limiting section is pin shaft, the third limiting section is the second convex block with limiting slot, and the pin shaft is inserted
In limiting slot；Or second limiting section is pin shaft, the third limiting section is to be connected by connector with pin shaft
Third convex block；Or second limiting section is inserted block, is enclosed on the periphery wall of the air duct equipped with annular ring, the third limit
Portion is the slot plugged for aforementioned inserted block being opened on annular ring.
In order to guarantee the supercharging effect of pressurized construction, the pressurized part includes first wheel and from first wheel to four
The end of multiple pressurization pieces of Zhou Yanshen, each pressurization piece is connected with the inner wall of air duct.
In order to further increase supercharging effect, the impeller includes the second wheel hub and extends around from the second wheel hub
Multiple flabellums, the flabellum and pressurization piece are arc-shaped, and the concave arc direction of flabellum is contrary with the pressurization concave arc of piece.So
Air extrusion rotation is first thrown away and carries out first time pressurization by flabellum, and then air carries out secondary guiding through pressurization piece again and squeezes rotation
Turn, to increase wind-force.
Further to improve supercharging effect, the line at top to the first wheel center of the pressurization piece and the pressurization
Angle α between the tangent line of piece is 55 °~65 °, good to the guiding squeezing effect of air in the angle.
Further to improve supercharging effect, the first wheel and the coaxial arrangement of the second wheel hub, so by flabellum
Air is directly entered between pressurization piece, avoids the waste of wind-force.
For the ease of the subsequent maintenance of fan, the shell is mutually involuted by two half-shells, between two half-shells
Joint surface is equipped with the recess portion that can be mutually clamped and protrusion.It is detachably connected between such each component, is repaired convenient for fan
Or cleaning.
For the ease of holding fan, the shell also has handle portion.
Compared with prior art, the advantages of the utility model: 1, the fan of the utility model includes pressurized part, thus
Make air-flow after impeller is pressurized for the first time, secondary booster is carried out under the action of pressurized part, supercharging effect is good；In addition, logical
It crosses and pressurized part is set in shell, and air inlet and air outlet are provided with grid disk, such pressurized part is protected by shell
Shield gets up and is not easily susceptible to external force, prolongs the service life；And user can not touch impeller, and high-speed rotating flabellum is avoided to hurt
To user；2, the pressurized part of the utility model includes first wheel and multiple pressurizations for extending around from first wheel
Piece, supercharging effect are good；3, the shell of the utility model is detachable split-type design, is needed more if pressurized part breaks down
It changes, opens shell and only replace pressurized part, be not necessarily to waste shell.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1；
Fig. 2 is the structural schematic diagram for removing one of half-shell of Fig. 1；
Fig. 3 is the decomposition diagram of Fig. 1；
Fig. 4 is the decomposition diagram of the other direction of Fig. 1；
Fig. 5 is the structural schematic diagram of the pressurized part in Fig. 4；
Fig. 6 is the structural schematic diagram for removing one of half-shell of the utility model embodiment 2；
Fig. 7 is the structural schematic diagram of the air duct and pressurized part in Fig. 6；
Fig. 8 is the structural schematic diagram for removing one of half-shell of the utility model embodiment 3；
Fig. 9 is the structural schematic diagram of the air duct and pressurized part in Fig. 8.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
Embodiment 1
As shown in Fig. 1~5, the Handheld fan of this preferred embodiment includes the shell 1 with handle portion 5, is set on shell 1
There are air inlet 11 and the air outlet being oppositely arranged with air inlet 11 12, and is provided with grid disk on air inlet 11 and air outlet 12
13, the pedestal 131 of grid disk 13 including centrally located position and the more grids extended around in scattering formula by pedestal 131
The end of item 132, each grille strip 132 is connected with shell 1.Grid disk 13 plays a protective role, and one prevents user from touching
To high-speed rotating flabellum 22 and by actual bodily harm, two come the component that is also prevented from shell 1 by artificial destruction.
In the present embodiment, shell 1 is mutually involuted by two half-shells 16, and the joint surface between two half-shells 16 is equipped with
The recess portion 161 that can be mutually clamped and protrusion 162, so that shell 1 is detachable structure.
Impeller 2, pressurized part 3 and air duct 4 are equipped in shell 1, impeller 2 is rotated relative to shell 1 to be arranged, 3 He of pressurized part
Air duct 4 is fixedly installed with respect to shell 1.In the present embodiment, air duct 4 takes shape in the outer rim of pressurized part 3, i.e. pressurized part 3 accommodates
In in air duct 4, impeller 2 is also placed in air duct 4 and is rotatablely installed on pressurized part 3.The both ends open of air duct 4 simultaneously divide by both ends
Not towards air inlet 11 and air outlet 12, on air-flow flow path, impeller 2 and pressurized part 3 are set gradually, i.e. impeller 2
Between air inlet 11 and pressurized part 3, pressurized part 3 is set between impeller 2 and air outlet 12.
In assembly, first impeller 2 can be installed on pressurized part 3, be then mounted as a whole in shell 1 again, installation side
Just；And air duct 4 is the equal of an air duct, the slave air outlet 12 that wind-force can be made more to concentrate is blown out, to increase wind-force.
Air duct 4 is mounted in the following way in shell 1, and 1 inner wall of shell is equipped with to offset with 4 open end of air duct
First limiting section 14 and the second limiting section 15 to offset with 4 outer wall of air duct, and be convexly equipped with and the second limiting section on 4 outer wall of air duct
The third limiting section 41 of 15 limit cooperations.First limiting section 14 can prevent air duct 4 from moving axially, and the second limiting section 15 prevents air duct
4 move radially, and the second limiting section 15 and the cooperation of third limiting section 41 prevent air duct 4 from circumferentially rotating.
In the present embodiment, the first limiting section 14 is the annular flange to extend internally from the periphery of grid disk 13, the second limit
Portion 15 is limiting slot of the opening towards air duct 4, and third limiting section 41 is the convex block taken shape on 4 outer wall of air duct, and convex block can accommodate
In in limiting slot.The structure of aforementioned limiting section makes removable between air duct 4 and shell 1.
Impeller 2 includes the second wheel hub 21 and the multiple flabellums 22 extended around from the second wheel hub 21, and pressurized part 3 wraps
The multiple pressurization pieces 32 for including first wheel 31 and extending around from first wheel 31, the end of each pressurization piece 32 and air duct
4 inner wall is connected, and first wheel 31 and the coaxial arrangement of the second wheel hub 21, flabellum 22 and pressurization piece 32 are arc-shaped, and flabellum
22 concave arc direction is contrary with the pressurization concave arc of piece 32；It is pressurized line and increasing of the top of piece 32 to 31 center of first wheel
Angle α between the tangent line of tabletting 32 is 55 °~65 °, preferably 61 °.
The Handheld fan of the present embodiment when in use, impeller 2 driving mechanism (such as motor) effect it is lower rotate use into
Row relevant air-flow guiding utilizes the pressurization of pressurized part 3 to carry out first time pressurization to air-flow, and when air-flow is in export
Piece 32 forms the effect of additional mechanical supercharging, and air-flow is allowed to have effects that accelerate and increase wind flow.
Embodiment 2
As shown in Figure 6,7, embodiment 2 the difference from embodiment 1 is that: the knot of the second limiting section 15 and third limiting section 41
Structure and the matching relationship of the two are different from embodiment 1.There are two second limiting sections 15 of the present embodiment and is pin shaft, wherein
One third limiting section 41 is the second convex block with limiting slot 411, and corresponding pin shaft is inserted in limiting slot 411；Another
Third limiting section 41 is the third convex block being connected by connector 412 (screw) with corresponding pin shaft.
Embodiment 3
As shown in Figure 8,9, embodiment 3 the difference from embodiment 1 is that: the knot of the second limiting section 15 and third limiting section 41
Structure and the matching relationship of the two are different from embodiment 1.Second limiting section 15 of the present embodiment is inserted block, the periphery wall of air duct 4
On enclose equipped with annular ring 42, third limiting section 41 is the slot 413 plugged for aforementioned inserted block being opened on annular ring 42.
Claims (10)
1. a kind of Handheld fan including shell (1) and is set to the impeller that can be rotated in shell (1) and relative to shell (1)
(2), the air outlet (12) that the shell (1) is equipped with air inlet (11) and is oppositely arranged with air inlet (11), the impeller (2)
Between air inlet (11) and air outlet (12), it is characterised in that: be respectively provided on the air inlet (11) and air outlet (12)
There are grid disk (13), it is fixed that opposite shell (1) is equipped on air-flow flow path, between the impeller (2) and air outlet (12)
The pressurized part (3) of setting.
2. Handheld fan according to claim 1, it is characterised in that: the pressurized part (3) and impeller (2) accommodate
In in the air duct (4) of opposite shell (1) fixed setting, impeller (2) rotational installation is on the pressurized part (3), institute
It states the both ends open of air duct (4) and both ends is respectively facing air inlet (11) and air outlet (12).
3. Handheld fan according to claim 2, it is characterised in that: shell (1) inner wall is equipped with and air duct (4)
The first limiting section (14) that open end offsets and the second limiting section (15) to offset with air duct (4) outer wall, and the air duct (4)
The third limiting section (41) with the second limiting section (15) limit cooperation is convexly equipped on outer wall.
4. Handheld fan according to claim 3, it is characterised in that: first limiting section (14) is from grid disk
(13) annular flange that periphery extends internally.
5. Handheld fan according to claim 4, it is characterised in that: second limiting section (15) is to be open towards wind
The limiting slot of cylinder (4), the third limiting section (41) is the first convex block taken shape on air duct (4) outer wall, first convex block
It can be placed in limiting slot；Or second limiting section (15) is pin shaft, the third limiting section (41) is with limiting slot
(411) the second convex block, the pin shaft are inserted in limiting slot (411)；Or second limiting section (15) is pin shaft, it is described
Third limiting section (41) is the third convex block being connected by connector (412) with pin shaft；Or second limiting section (15) is
Inserted block encloses on the periphery wall of the air duct (4) equipped with annular ring (42), and the third limiting section (41) is to be opened in annular ring
(42) slot (413) plugged for aforementioned inserted block on.
6. Handheld fan described in any claim according to claim 1~5, it is characterised in that: the pressurized part
(3) the multiple pressurization pieces (32) for including first wheel (31) and extending around from first wheel (31), each pressurization
The end of piece (32) is connected with the inner wall of air duct (4).
7. Handheld fan according to claim 5, it is characterised in that: the impeller (2) include the second wheel hub (21) with
And the multiple flabellums (22) extended around from the second wheel hub (21), the flabellum (22) and pressurization piece (32) are arc-shaped, and
The concave arc direction of flabellum (22) is contrary with the pressurization concave arc of piece (32).
8. Handheld fan according to claim 6, it is characterised in that: the top of pressurization piece (32) to first wheel
(31) angle (α) between the line at center and the tangent line of pressurization piece (32) is 55 °~65 °.
9. Handheld fan according to claim 6, it is characterised in that: the first wheel (31) and the second wheel hub (21)
Coaxial arrangement.
10. Handheld fan according to claim 1, it is characterised in that: the shell (1) is mutual by two half-shells (16)
It involutes, the joint surface between two half-shells (16) is equipped with the recess portion (161) that can be mutually clamped and protrusion (162).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821915524.3U CN209053814U (en) | 2018-11-20 | 2018-11-20 | Handheld fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821915524.3U CN209053814U (en) | 2018-11-20 | 2018-11-20 | Handheld fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209053814U true CN209053814U (en) | 2019-07-02 |
Family
ID=67053822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821915524.3U Expired - Fee Related CN209053814U (en) | 2018-11-20 | 2018-11-20 | Handheld fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209053814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183385A (en) * | 2021-09-27 | 2022-03-15 | 深圳市几素科技有限公司 | Pressurized mixed flow generator and portable bladeless fan with same |
-
2018
- 2018-11-20 CN CN201821915524.3U patent/CN209053814U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183385A (en) * | 2021-09-27 | 2022-03-15 | 深圳市几素科技有限公司 | Pressurized mixed flow generator and portable bladeless fan with same |
| CN114183386A (en) * | 2021-09-27 | 2022-03-15 | 深圳市几素科技有限公司 | Pressurized mixed flow generator and portable bladeless fan with same |
| WO2023046145A1 (en) * | 2021-09-27 | 2023-03-30 | 深圳市几素科技有限公司 | Portable bladeless fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190702 Termination date: 20191120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |