CN220452237U - Neck hanging fan - Google Patents
Neck hanging fan Download PDFInfo
- Publication number
- CN220452237U CN220452237U CN202321118446.5U CN202321118446U CN220452237U CN 220452237 U CN220452237 U CN 220452237U CN 202321118446 U CN202321118446 U CN 202321118446U CN 220452237 U CN220452237 U CN 220452237U
- Authority
- CN
- China
- Prior art keywords
- fan
- blades
- neck
- blade
- air inlet
- Prior art date
- 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.)
- Active
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 12
- 241000883990 Flabellum Species 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a neck hanging fan, comprising: the shell is provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the inside of the shell; the fan assembly is accommodated in the shell and comprises fan blades and a motor for driving the fan blades to rotate, the fan blades comprise a central part positioned at the center, a plate part arranged on the radial outer side of the central part, and a plurality of blades axially extending from the first side of the plate part, and the blades are arranged on the radial outer side of the central part at intervals; wherein the plate portion is formed with a ventilation portion therethrough, through which wind may enter between the blades from the second side of the plate portion. Through only set up a plurality of through the first side of plate portion the blade, just the plate portion runs through and forms ventilation portion, makes wind can follow the second side of plate portion gets into the blade for the whole thickness of flabellum is less, and then makes the whole frivolous of fan unit spare, and the user wears comfortablely.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a neck hanging fan with double-side air inlet.
Background
The existing neck hanging fan well meets the cooling requirements of people on carrying with and releasing both hands, however, in order to meet enough air quantity and wind power, two sides of the neck hanging fan corresponding to each fan blade are provided with air inlets, that is, the neck hanging fan with two fan blades is provided with four air inlets. Meanwhile, according to the general knowledge of those skilled in the art, it is considered that the fan blade is also designed to have blades on opposite sides, and the blades on opposite sides of the fan blade need a sufficient height to ensure a sufficient air intake on opposite sides. Therefore, the whole body of the neck hanging fan is thick and heavy, and the wearing time of a user is long, so that the idle probability of the neck hanging fan is greatly increased.
Disclosure of Invention
In view of this, the present utility model provides a neck-hanging fan, by arranging a plurality of blades on only a first side of a plate portion, and the plate portion penetrates through a ventilation portion, so that wind can enter the blades from a second side of the plate portion, the overall thickness of the blades is smaller, and further, the fan assembly is light and thin, and a user wears the neck-hanging fan comfortably.
The utility model provides a neck hanging fan, comprising: the shell is provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the inside of the shell; the fan assembly is accommodated in the shell and comprises fan blades and a motor for driving the fan blades to rotate, the fan blades comprise a central part positioned at the center, a plate part arranged on the radial outer side of the central part, and a plurality of blades axially extending from the first side of the plate part, and the blades are arranged on the radial outer side of the central part at intervals; wherein the plate portion is formed with a ventilation portion therethrough, through which wind may enter between the blades from the second side of the plate portion.
Further, the housing further comprises a containing cavity and an air duct which are communicated, the air inlet is communicated with the containing cavity, the air outlet is formed in the side wall of the air duct, and the fan assembly is contained in the containing cavity.
Further, the housing is provided with one air inlet at a first side of the plate portion, and the housing is also provided with one air inlet at a second side of the plate portion.
Further, each blade comprises a blade tip far away from the plate part, and the fan blade further comprises a connecting ring, wherein the connecting ring is connected with a plurality of blade tips.
Further, the connecting ring is connected to the radially outer side of the plurality of the tip vanes.
Further, the center portion includes a bottom wall and a side wall connected to the bottom wall, the bottom wall and the side wall forming a housing portion having an opening, the housing portion being configured to house the motor.
Further, each of the blades includes a blade tip away from the plate portion, and the opening of the housing portion faces in a direction opposite to the extending direction of the plurality of blades, and the plurality of blade tips are higher than the bottom wall, or the plurality of blade tips are flush with the bottom wall.
Further, each of the blades includes a blade tip away from the plate portion, the opening of the housing portion faces in the same direction as the extending direction of the plurality of blades, and the plurality of blade tips are higher than the free edge of the side wall or flush with the free edge of the side wall.
Further, the shell comprises a neck wearing part, a first part connected to one end of the neck wearing part, and a second part connected to the other end of the neck wearing part, wherein the first part and the second part are symmetrically arranged.
Further, the first portion and the second portion are respectively formed with an air inlet, an accommodating cavity, an air duct and an air outlet which are sequentially communicated, and the accommodating cavities of the first portion and the second portion are respectively provided with the fan assembly.
Compared with the prior art, the neck hanging fan has the following beneficial effects: through only set up a plurality of through the first side of plate portion the blade, just the plate portion runs through and forms ventilation portion, makes wind can follow the second side of plate portion gets into the blade for the whole thickness of flabellum is less, and then makes the whole frivolous of fan unit spare, and the user wears comfortablely.
Drawings
FIG. 1 is a schematic perspective view of a neck fan of the present utility model;
FIG. 2 is a partially exploded view of the neck fan of the present utility model;
FIG. 3 is a cross-sectional view of the neck fan of the present utility model;
FIG. 4 is a perspective view of one direction of a fan blade of the present utility model;
fig. 5 is a perspective view of another direction of the fan blade of the present utility model.
Detailed Description
For a better understanding of the present utility model with regard to its objects, structures, features, and effects, a further description of the present utility model will be made with reference to the drawings and to the detailed description.
As shown in fig. 1 to 3, the necktie fan of the present utility model includes a housing 1 and a fan assembly 2 accommodated in the housing 1. The housing 1 is formed with an air inlet 11, a containing cavity 12, an air duct 13 and an air outlet 14 which are sequentially communicated, the air outlet 14 is formed on a side wall 232 of the air duct 13, and the fan assembly 2 is contained in the containing cavity 12. Of course, in other embodiments, the housing 1 may be formed with only the air inlet 11, the accommodating chamber 12, and the air outlet 14 that are sequentially connected.
As shown in fig. 1 to 3, the housing 1 includes a neck wearing portion 1A, a first portion 1B connected to one end of the neck wearing portion 1A, and a second portion 1C connected to the other end of the neck wearing portion 1A, the first portion 1B and the second portion 1C being symmetrically disposed. The first part 1B and the second part 1C are respectively provided with an air inlet 11, a containing cavity 12, an air duct 13 and an air outlet 14 which are sequentially communicated, and the first part 1B and the second part 1C are respectively provided with the fan assembly 2. Of course, in other embodiments, the fan assembly 2 may be disposed within the neck wear 1A.
As shown in fig. 2, 4 and 5, the fan assembly 2 includes a fan blade 22 and a motor 21 for driving the fan blade 22 to rotate. The fan blade 22 includes a central portion 23 at the center, a plate portion 24 disposed radially outward of the central portion 23, and a plurality of blades 25 extending axially from a first side of the plate portion 24, the plurality of blades 25 being spaced radially outward of the central portion 23. Wherein the plate portion 24 is formed with a ventilation portion 241 therethrough, and wind may enter the blade 25 from the second side of the plate portion 24 via the ventilation portion 241.
Through only set up a plurality of in the first side of plate portion 24 blade 25, just plate portion 24 runs through and forms ventilation portion 241, makes wind can follow the second side of plate portion 24 get into blade 25 for the whole thickness of flabellum 22 is less, and then makes the whole frivolity of fan unit 2, and the user wears comfortablely.
As shown in fig. 2 and 3, the housing 1 is provided with one air inlet 11 on a first side of the plate portion 24, and the housing 1 is also provided with one air inlet 11 on a second side of the plate portion 24. Referring to fig. 4 and 5, the fan blade 22 includes a first air inlet region Q1 and a second air inlet region Q2 opposite to each other. Wind enters the accommodating cavity 12 from the air inlet 11 of the first side of the plate portion 24 of the casing 1, passes through the fan blades 22 via the first air inlet area Q1, blows toward the air duct 13, and then blows out from the air outlet 14; meanwhile, the air enters the accommodating cavity 12 from the air inlet 11 of the second side of the plate portion 24 of the housing 1, passes through the fan blade 22 via the second air inlet area Q2, blows toward the air duct 13, and then blows out from the air outlet 14. Of course, the housing 1 may be provided with one air inlet 11 on a first side of the plate 24, and the housing 1 may not be provided with the air inlet 11 on a second side of the plate 24; alternatively, the housing 1 is provided with one air inlet 11 on the second side of the plate portion 24, and the housing 1 is not provided with the air inlet 11 on the first side of the plate portion 24.
As shown in fig. 4, each of the blades 25 includes a tip 251 remote from the plate 24, and the fan blade 22 further includes a connection ring 26, where the connection ring 26 connects a plurality of the tips 251. The connecting ring 26 connects a plurality of the blades 25, which enhances the overall strength and balance of the fan blade 22, and makes the fan blade 22 more stable when rotating. The connection ring 26 is connected to the radially outer side of the plurality of blade tips 251, and does not affect the air intake in the axial direction of the plurality of blades 25. Of course, in other embodiments, the fan blade 22 may not be provided with the connection ring 26.
As shown in fig. 3 to 5, the central portion 23 includes a bottom wall 231 and a side wall 232 connected to the bottom wall 231, the bottom wall 231 and the side wall 232 form a housing portion 233 having an opening, and the housing portion 233 is configured to house the motor 21. In the present embodiment, the opening of the accommodating portion 233 faces in the opposite direction to the extending direction of the plurality of blades 25, and the plurality of blade tips 251 are higher than the bottom wall 231. Of course, in other embodiments, a plurality of the crests 251 are flush with the bottom wall 231. In addition, in other embodiments, the opening of the accommodating portion 233 faces the same direction as the extending direction of the plurality of blades 25, and the plurality of blade tips 251 are higher than the free edge of the side wall 232, or the plurality of blade tips 251 are flush with the free edge of the side wall 232.
It will be appreciated that in this embodiment, all of the side walls 232 are located on a first side of the plate portion 24 with the plurality of vanes 25, and the crests 251 are higher than the bottom wall 231 to form a height difference. In other embodiments, it is also possible that a portion of the side wall 232 and the plurality of blades 25 are located on a first side of the plate 24, and another portion of the side wall 232 is located on the other side of the plate 24, and in this way, a height difference between the plurality of blade tips 251 and the bottom wall 231 may be achieved. That is, the height difference between the plurality of blade tips 251 and the bottom wall 231 may be achieved by increasing the lengths of the plurality of blades 25 or adjusting the positional relationship between the side walls 232 and the plate portion 24.
As shown in fig. 3 to 5, in the present embodiment, the first air intake region Q1 includes a plurality of radially inner regions of the outer edges of the blades 25, and the second air intake region Q2 includes the ventilation portion 241. Specifically, the first intake region Q1 includes a space in which the center portion 23 is lower than the plurality of blade tops 251, a space between the plurality of blades 25 and the center portion 23, and a space between two adjacent blades 25. Wind enters the fan blades 22 from the first air inlet area Q1 and the second air inlet area Q2, and is thrown out radially through the spaces between the plurality of blades 25.
As shown in fig. 4 and 5, the ventilation portion 241 extends from a region near the center portion 23 to a region of the plurality of blades 25 in the radial direction, and a portion of the bottom ends of the plurality of blades 25 is suspended. The larger area of the ventilation portion 241, that is, the larger area of the second air intake area Q2, ensures the air intake of the second air intake area Q2.
The above detailed description is merely illustrative of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model, so that all equivalent technical changes that can be made by the present specification and illustrations are included in the scope of the utility model.
Claims (10)
1. A neck hanging fan, comprising:
the shell is provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the inside of the shell;
the fan assembly is accommodated in the shell and comprises fan blades and a motor for driving the fan blades to rotate, the fan blades comprise a central part positioned at the center, a plate part arranged on the radial outer side of the central part, and a plurality of blades axially extending from the first side of the plate part, and the blades are arranged on the radial outer side of the central part at intervals;
wherein the plate portion is formed with a ventilation portion therethrough, through which wind may enter between the blades from the second side of the plate portion.
2. The neck fan as claimed in claim 1, wherein: the housing also comprises an accommodating cavity and an air duct which are communicated, the air inlet is communicated with the accommodating cavity, the air outlet is formed in the side wall of the air duct, and the fan assembly is accommodated in the accommodating cavity.
3. The neck fan as claimed in claim 2, wherein: the shell is provided with the air inlet at the first side of the plate part, and the shell is also provided with the air inlet at the second side of the plate part.
4. A neck-hanging fan as claimed in any one of claims 1 to 3, wherein: each blade comprises a blade top far away from the plate part, and the fan blade further comprises a connecting ring, wherein the connecting ring is connected with a plurality of blade tops.
5. The neck fan as claimed in claim 4, wherein: the connecting ring is connected to the radially outer side of the plurality of blade tips.
6. The neck fan as claimed in claim 1, wherein: the center portion includes a bottom wall and a side wall connected to the bottom wall, the bottom wall and the side wall forming a housing portion having an opening, the housing portion being for housing the motor.
7. The neck fan as claimed in claim 6, wherein: each blade comprises a blade top far away from the plate part, the opening of the accommodating part faces to the direction opposite to the extending direction of a plurality of blades, and the blade tops are higher than the bottom wall or are flush with the bottom wall.
8. The neck fan as claimed in claim 6, wherein: each blade comprises a blade top far away from the plate part, the opening of the accommodating part faces the same direction as the extending direction of a plurality of blades, and the blade tops are higher than the free edge of the side wall or are flush with the free edge of the side wall.
9. The neck fan as claimed in claim 2, wherein: the shell comprises a neck wearing part, a first part connected with one end of the neck wearing part and a second part connected with the other end of the neck wearing part, wherein the first part and the second part are symmetrically arranged.
10. The neck fan as claimed in claim 9, wherein: the first part and the second part are respectively provided with an air inlet, an accommodating cavity, an air duct and an air outlet which are sequentially communicated, and the accommodating cavities of the first part and the second part are respectively provided with the fan assembly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2023210355993 | 2023-04-28 | ||
| CN202321035599 | 2023-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452237U true CN220452237U (en) | 2024-02-06 |
Family
ID=87457355
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321118446.5U Active CN220452237U (en) | 2023-04-28 | 2023-05-09 | Neck hanging fan |
| CN202310520872.XA Pending CN116538116A (en) | 2023-04-28 | 2023-05-09 | Neck hanging fan |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310520872.XA Pending CN116538116A (en) | 2023-04-28 | 2023-05-09 | Neck hanging fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN220452237U (en) |
-
2023
- 2023-05-09 CN CN202321118446.5U patent/CN220452237U/en active Active
- 2023-05-09 CN CN202310520872.XA patent/CN116538116A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN116538116A (en) | 2023-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |