CN217814119U - Air duct structure and neck hanging fan - Google Patents
Air duct structure and neck hanging fan Download PDFInfo
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- CN217814119U CN217814119U CN202221076897.2U CN202221076897U CN217814119U CN 217814119 U CN217814119 U CN 217814119U CN 202221076897 U CN202221076897 U CN 202221076897U CN 217814119 U CN217814119 U CN 217814119U
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- air
- air inlet
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- air duct
- duct structure
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Abstract
The utility model discloses a wind channel structure and hang neck fan, including the cavity shell, the fresh air inlet has been seted up to the tip of cavity shell, a plurality of exhaust vents have been seted up along the air supply direction to the lateral part of cavity shell, the inclined hole of exhaust vent for being used for the wind-guiding. When the air enters, the air outlet guides the input air flow and changes the moving line of the input air flow, so that the air flow is turned and the air outlet of the side part is realized, the inclined hole can greatly reduce the included angle between the turning moving line and the original input moving line, the turning moving line is more smoothly connected with the original input moving line, the resistance of the air flow during turning output is reduced, and the smoothness of air flow conveying is improved.
Description
Technical Field
The utility model belongs to the technical field of hang neck fan technique and specifically relates to a wind channel structure and hang neck fan is related to.
Background
The neck hanging fan is hung on the neck of a user, can move along with the movement of the user, can release the hands of the user, and is suitable for warehouses, kitchens and outdoors.
Among the prior art, hang the air-out direction that the neck fan passes through the wind channel structure and changes the flabellum, and then make wind can blow to wearer's neck, but current wind channel structure resistance is big, and air mobility is poor, leads to the air output to descend.
SUMMERY OF THE UTILITY MODEL
A first object of the present invention is to provide an air duct structure, which has small resistance and good air fluidity, and is favorable for increasing the air output.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the air duct structure comprises a hollow shell, wherein an air inlet hole is formed in the end portion of the hollow shell, a plurality of air outlet holes are formed in the side portion of the hollow shell along the air supply direction, and the air outlet holes are inclined holes for guiding air.
Preferably, the inner wall of the air outlet comprises a wind guide surface and a reflecting surface which are connected, the wind guide surface and the reflecting surface are arranged in front and at back along the air supply direction, the wind guide surface is obliquely arranged on the inner wall of the air outlet and faces the inner cavity of the hollow shell, and the reflecting surface is obliquely arranged on the inner wall of the air outlet and faces the outside of the hollow shell; more preferably, the air guide surface and the reflecting surface can be but not limited to a plane and an arc surface, and further preferably, the air guide surface and the reflecting surface are both arc surfaces, the action area of the arc surfaces is larger, transition of the connecting part of the air guide surface and the reflecting surface can be smoother, and the fluency of air flow is further improved. More preferably, the axis of the air outlet hole forms an obtuse angle with the air inlet surface of the air inlet hole.
Preferably, the aperture of the air outlet is gradually reduced along the air supply direction.
Preferably, the area of the cross section of the hollow casing is gradually reduced along the air blowing direction.
Further preferably, the cross section of the hollow shell is oval, so that the wearing comfort of a wearer can be improved.
Preferably, the air inlet end of the hollow shell is provided with an installation cylinder, the air inlet hole is formed in the outer end of the installation cylinder, and the installation cylinder is provided with a fan blade assembly.
Preferably, the inner cavity of the mounting cylinder body is provided with a mounting structure, and the fan blade assembly is arranged at one end, close to the air inlet hole, of the mounting structure. More preferably, mounting structure is the massive body, and the periphery wall of the massive body is equipped with a plurality of connection pieces, the other end of connection piece and the inner wall connection of installation barrel, and form the air supply passageway between the adjacent connection piece, and further preferred, the cross section of installation barrel is circular, and the cross section of the massive body is circular, and massive body coaxial arrangement is on the installation barrel, and the connection piece uses the centre of a circle of the massive body to be equidistant circumference arrangement as the axle center, and then improves the homogeneity of each air supply passageway air supply.
Preferably, still include power supply unit, power supply unit locates mounting structure is close to the one end of exhaust vent, the inner chamber of cavity casing is keeping away from the one end of fresh air inlet is equipped with wind structure.
Preferably, the hollow shell comprises a first shell and a second shell, the first shell and the second shell are detachably connected, the installation barrel is integrally formed with the first shell, and the air outlet is formed in the first shell.
Further preferably, the assembly edge integrated into one piece of first casing has a plurality of son to detain, the assembly edge integrated into one piece of second casing has a plurality of box, and son detains and box joint cooperation, further reduces the design of trompil on the casing outside, prevents on the one hand that the sweat of wearing person from piling up on the pilot hole, and then improves the health nature, and on the other hand can improve the aesthetic property of hanging the neck fan.
Preferably, the outer end of the mounting cylinder body is detachably connected with an air inlet cover, and the air inlet cover covers the air inlet hole. Further preferably, be equipped with the champignon lid on the air inlet terminal surface of air inlet cover, and then make the air current have fragrant smell, improve the use experience of wearer.
A second object of the present invention is to provide a neck hanging fan, which has high flexibility and is favorable for satisfying more market demands
The utility model provides a hang neck fan, still includes and hangs neck subassembly and two wind channel structures, hang the neck subassembly and be the flexible piece of buckling, one of them the wind channel structure keep away from the one end of exhaust vent with the one end fixed connection who hangs the neck subassembly, another the wind channel structure keep away from the one end of exhaust vent with the other end fixed connection who hangs the neck subassembly.
Preferably, the flexible bending piece can be but not limited to a silicone hollow sleeve, a rubber hollow sleeve, a thermoplastic elastomer hollow sleeve and the like, and further preferably, the flexible hollow sleeve is a silicone hollow sleeve, so that the silicone has a small smell and is more compatible with the skin, and the hanging and wearing comfort is further improved.
The beneficial effects of the utility model reside in that: when the air enters, the air outlet guides the input air flow and changes the moving line of the input air flow, so that the air flow is turned and the air outlet of the side part is realized, the inclined hole can greatly reduce the included angle between the turning moving line and the original input moving line, the turning moving line is more smoothly connected with the original input moving line, the resistance of the air flow during turning output is reduced, and the smoothness of air flow conveying is improved.
The utility model discloses still include following advantage: (1) The extrusion force to the wind is gradually increased along the air supply direction, so that the uniformity of the air outlet of each air outlet hole is further improved; (2) The space utilization rate of the air duct is high, and the compactness of the structure is further improved; (3) Through the air inlet cover, reducible dust is piled up, is prevented that user's hair from getting into the inner chamber of installation barrel, and is further, improves the cleanliness factor of air-out, improves and hangs the security of wearing.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic longitudinal sectional view of embodiment 1 of the present invention;
fig. 2 is an external structural schematic diagram of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 4 is an exploded view of embodiment 1 of the present invention;
fig. 5 is a partial schematic view of embodiment 2 of the present invention.
Shown in the figure: 1-hollow shell, 11-first shell, 111-installation cylinder, 112-block body, 113-air supply channel, 114-air inlet cover, 1141-groove, 1142-fragrance cover, 12-second shell;
2-air inlet holes;
3-air outlet, 31-air guide surface and 32-reflecting surface;
4-a wind shielding structure;
5-a fan blade assembly;
6-a power supply component;
7-hanging neck subassembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-2, in the present embodiment, an air duct structure includes a hollow housing 1, an air inlet 2 is disposed at an end of the hollow housing 1, a plurality of air outlets 3 are disposed at a side of the hollow housing 1 along an air supply direction, and the air outlets 3 are oblique holes for guiding air.
In this embodiment, the inner wall of the air outlet 3 includes a wind guiding surface 31 and a reflecting surface 32 which are connected, the wind guiding surface 31 and the reflecting surface 32 are arranged back and forth along the air supply direction, the wind guiding surface 31 is obliquely arranged on the inner wall of the air outlet 3 and faces the inner cavity of the hollow housing 1, the reflecting surface 32 is obliquely arranged on the inner wall of the air outlet 3 and faces the outside of the hollow housing 1, when an input airflow passes through the air outlet 3, the wind guiding surface 31 at the front end is firstly led out, so that the loss of wind power is reduced, and then the reflecting surface 32 at the rear end is used for reflecting, so that the intensity of the wind power is increased; in this embodiment, more preferably, the air guide surface 31 and the reflection surface 32 may be, but not limited to, a plane and a cambered surface, and further preferably, the air guide surface 31 and the reflection surface 32 are both cambered surfaces, and the cambered surfaces have a larger effective area, and can make transition at a connection between the air guide surface 31 and the reflection surface 32 smoother, thereby further improving the smoothness of air flow. The included angle between the axis of the air outlet 3 and the air inlet surface of the air inlet 2 is an obtuse angle.
Preferably, the aperture of the air outlet 3 is gradually reduced along the air supply direction. In this embodiment, the extrusion force to wind increases progressively along the air supply direction, further improves the homogeneity of air-out.
Preferably, the area of the cross section of the hollow casing 1 is gradually reduced in the air blowing direction. In this embodiment, the compressive force on the wind gradually increases along the air supply direction, further increasing the air output of the terminal air outlet 3.
Further preferably, the cross section of the hollow shell 1 is oval. In this embodiment, the comfort of wearing can be improved.
Preferably, the air inlet end of the hollow shell 1 is provided with an installation cylinder 111, the air inlet hole 2 is arranged at the outer end of the installation cylinder 111, and the installation cylinder 111 is provided with a fan blade assembly 5.
Preferably, the inner cavity of the mounting cylinder 111 is provided with a mounting structure, and the fan blade assembly 5 is arranged at one end of the mounting structure close to the air inlet 2. In this embodiment, more preferably, the mounting structure is a block-shaped body 112, the outer peripheral wall of the block-shaped body 112 is provided with a plurality of connecting sheets, the other ends of the connecting sheets are connected with the inner wall of the mounting cylinder 111, and the adjacent connecting sheets form the air supply channels 113, further preferably, the cross section of the mounting cylinder 111 is circular, the cross section of the block-shaped body 112 is circular, the block-shaped body 112 is coaxially arranged on the mounting cylinder 111, and the connecting sheets are arranged in an equidistant circumference by taking the center of a circle of the block-shaped body 112 as an axis, so as to improve the uniformity of air supply of each air supply channel 113.
Preferably, still include power supply unit 6, power supply unit 6 locates the one end that mounting structure is close to exhaust vent 3, and the one end that the inner chamber of cavity casing is keeping away from fresh air inlet 2 is equipped with wind structure 4. In this embodiment, power supply unit 6 is including the battery and the PCB board that are the column, when the flabellum rotates, the battery sets up on blocky body 112, play the space in compression wind channel middle section, further reduce the cross-sectional area in wind channel middle section, when the air current is carried to the end, the cross-sectional area in wind channel increases suddenly, lead to the inhomogeneous condition to appear in the wind-force of middle section and end, in this embodiment, structure 4 keeps out the wind has the wind portion and the installation department of slope, wind portion is located the one side that is close to fresh air inlet 2, the installation department is located the one side that is close to second casing 12, the PCB board passes through the wire and is connected with the battery, and can fix on the installation department, can play the terminal air current in extrusion wind channel on the one hand, improve the homogeneity of wind channel amount everywhere, on the other hand can improve the space utilization in wind channel.
Preferably, the hollow housing 1 includes a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 are detachably connected, the installation cylinder 111 and the first housing 11 are integrally formed, and the air outlet 3 is disposed on the first housing 11. The integral design can avoid assembly errors caused by processing, further improve the air tightness of the air duct structure, reduce wind power loss and enable air to flow more smoothly.
Preferably, the assembly edge of the first casing 11 is integrally formed with a plurality of male fasteners, the assembly edge of the second casing 12 is integrally formed with a plurality of female fasteners, the male fasteners and the female fasteners are in clamping fit, the design of opening holes in the outer portion of the casing is further reduced, on one hand, sweat of a wearer is prevented from being accumulated on the assembly holes, and then the sanitation is improved, and on the other hand, the attractiveness of the neck hanging fan can be improved.
Preferably, an air inlet cover 114 is detachably connected to the outer end of the mounting cylinder 111, and the air inlet cover 114 covers the air inlet hole 2. In this embodiment, the reducible dust of air inlet cover 114 is piled up, is prevented that user's hair from getting into the inner chamber of installation barrel 111, and is further, improves the cleanliness factor of air-out, improves and hangs the security of wearing.
Referring to fig. 3 and 4, the embodiment further provides a neck hanging fan, further including a neck hanging assembly 7 and two air duct structures, where the neck hanging assembly 7 is a flexible bending member, one end of one air duct structure far away from the air outlet 3 is fixedly connected to one end of the neck hanging assembly 7, and one end of the other air duct structure far away from the air outlet 3 is fixedly connected to the other end of the neck hanging assembly 7.
Preferably, the flexible bending piece can be but not limited to a silicone hollow sleeve, a rubber hollow sleeve, a thermoplastic elastomer hollow sleeve and the like, and further preferably, the flexible hollow sleeve is a silicone hollow sleeve, so that the silicone has a small smell and is more compatible with the skin, and the wearing comfort is further improved.
Example 2
This example differs from example 1 in that:
referring to fig. 5, in the present embodiment, an aroma cover 1142 is disposed on an air inlet end surface of the air inlet cover 114, so that the airflow has fragrance, and the use experience of the wearer is improved. In this embodiment, the air inlet terminal surface of air inlet cover 114 is gone up to the indent be equipped with the recess 1141 of champignon lid 1142 adaptation, and the internal perisporium of recess 1141 is equipped with the screw thread, and the periphery wall and the recess 1141 screw-thread fit of champignon lid 1142 realize the dismouting.
The rest of this embodiment is the same as embodiment 1, and is not described herein again.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. An air duct structure is characterized by comprising a hollow shell, wherein an air inlet hole is formed in the end part of the hollow shell, a plurality of air outlet holes are formed in the side part of the hollow shell along the air supply direction, and the air outlet holes are inclined holes for guiding air;
the inner wall of exhaust vent arranges along the air supply direction front and back including the wind guide surface and the plane of reflection of connection, wind guide surface and plane of reflection, and the slope of wind guide surface arranges in the exhaust vent inner wall, and towards the inner chamber of cavity shell, and the plane of reflection slope arranges in the inner wall of exhaust vent, and towards the outside of cavity shell.
2. The air duct structure according to claim 1, wherein the aperture of the air outlet is gradually reduced along the air supply direction.
3. An air duct structure according to claim 1, wherein the cross-sectional area of the hollow casing is gradually reduced in the air blowing direction.
4. The air duct structure according to claim 1, wherein the air inlet end of the hollow housing is provided with a mounting cylinder, the air inlet hole is provided at the outer end of the mounting cylinder, and the mounting cylinder is provided with a fan blade assembly.
5. The air duct structure according to claim 4, wherein a mounting structure is disposed in the inner cavity of the mounting cylinder, and the fan blade assembly is disposed at an end of the mounting structure close to the air inlet.
6. The air duct structure according to claim 5, further comprising a power supply assembly, wherein the power supply assembly is disposed at an end of the mounting structure close to the air outlet, and a wind shielding structure is disposed at an end of the inner cavity of the hollow housing far away from the air inlet.
7. The air duct structure according to claim 4, wherein the hollow housing comprises a first housing and a second housing, the first housing and the second housing are detachably connected, the mounting cylinder is integrally formed with the first housing, and the air outlet is formed in the first housing.
8. The air duct structure according to claim 4, wherein an air inlet cover is detachably connected to an outer end of the mounting cylinder, and the air inlet cover covers the air inlet hole.
9. A hang neck fan, characterized by, still include hang neck subassembly and two wind channel structures of any one of claims 1-8, hang neck subassembly is flexible bending member, one of them wind channel structure keep away from the one end of exhaust vent with hang neck subassembly's one end fixed connection, another wind channel structure keep away from the one end of exhaust vent with hang neck subassembly's other end fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221076897.2U CN217814119U (en) | 2022-05-07 | 2022-05-07 | Air duct structure and neck hanging fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221076897.2U CN217814119U (en) | 2022-05-07 | 2022-05-07 | Air duct structure and neck hanging fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217814119U true CN217814119U (en) | 2022-11-15 |
Family
ID=83981905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221076897.2U Active CN217814119U (en) | 2022-05-07 | 2022-05-07 | Air duct structure and neck hanging fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217814119U (en) |
-
2022
- 2022-05-07 CN CN202221076897.2U patent/CN217814119U/en active Active
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