CN217129843U

CN217129843U - Pressurized neck hanging fan

Info

Publication number: CN217129843U
Application number: CN202121328822.4U
Authority: CN
Inventors: 李伟平; 李彤
Original assignee: Shenzhen Magic Cube Digital Technology Co ltd
Current assignee: Shenzhen Magic Cube Digital Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-08-05
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a neck fan is hung to booster-type, include: the neck hanging piece is used for being worn on the neck of a human body, and the centrifugal fan and the damping element are arranged in the neck hanging piece; an air duct is formed in the neck hanging piece, and an air outlet corresponding to the air duct and an air inlet corresponding to the centrifugal fan are formed in the neck hanging piece; the centrifugal fan comprises a volute and a centrifugal fan wheel arranged in the volute, an air outlet of the volute is communicated with the air channel, the volute is arranged in the neck hanging piece, and the damping element is arranged between the outer wall of the volute and the inner wall of the neck hanging piece. The to-be-solved technical problem of the utility model is to provide a neck fan is hung to booster-type that wind strength is bigger.

Description

Pressurized neck hanging fan

Technical Field

The utility model relates to a fan technical field especially relates to a neck fan is hung to booster-type.

Background

In recent years, people are pursuing more and more convenient life, and various portable fans such as a neck hanging fan appear on the market in order to meet the requirement that the fan is required to be used in outdoor activities or other life scenes. The appearance of hanging the neck fan has solved the activity limitation that handheld fan brought, no matter be the use scenes such as motion, outdoor activities or office, hang the neck fan and can all liberate user's both hands, do not need handheld effect that can realize blowing anytime and anywhere.

The existing neck hanging fan generally comprises a neck hanging piece and a fan, the neck hanging piece is used for being worn on the neck of a human body, the fan is located in the neck hanging piece, an air channel corresponding to the fan is arranged in the neck hanging piece, an air outlet communicated with the outside is formed in the side wall of the air channel, and air generated when the fan rotates enters the air channel and then is blown out of the air outlet, so that the neck of the human body can be cooled. However, the neck hanging fan is limited by the volume of the neck hanging fan, so that the wind strength of the existing neck hanging fan is small, and the cooling effect is not high.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model is to provide a bigger booster-type of strength of wind hangs neck fan.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

a pressurized muffler fan comprising: the neck hanging piece is used for being worn on the neck of a human body, and the centrifugal fan and the damping element are arranged in the neck hanging piece; an air duct is formed in the neck hanging piece, and an air outlet corresponding to the air duct and an air inlet corresponding to the centrifugal fan are formed in the neck hanging piece; the centrifugal fan comprises a volute and a centrifugal fan wheel arranged in the volute, an air outlet of the volute is communicated with the air channel, the volute is arranged in the neck hanging piece, and the damping element is arranged between the outer wall of the volute and the inner wall of the neck hanging piece.

Preferably, the damping element is an elastic gasket or an elastic washer, and two axial side ends of the volute are respectively provided with one damping element.

Preferably, air inlets are formed at two axial side ends of the volute respectively, the air inlet holes are formed on the inner side wall and the outer side wall of the neck hanging piece respectively, the damping element avoids the air inlets and the air inlet holes, or hollow holes corresponding to the air inlets and the air inlet holes are formed on the damping element.

Preferably, the air outlet of the volute faces and extends into the air duct.

Preferably, the neck hanging piece comprises two shells which are symmetrically arranged, a separation plate and an air deflector are arranged in each shell, the separation plate divides a cavity in each shell into a first cavity and a second cavity, and the air deflector divides the first cavity into a sub-cavity and the air duct; each shell is internally provided with one centrifugal fan, the centrifugal fans are arranged in the air channels, and the air outlet holes are formed in the positions, corresponding to the air channels, on the shells.

Preferably, the supercharged neck hanging fan further comprises a control unit, the control unit is arranged in the first chamber or the sub-cavity and comprises a circuit board electrically connected with the centrifugal fan and a battery electrically connected with the circuit board.

Preferably, the neck hanging piece further comprises a flexible section, the flexible section comprises a memory bending piece and a soft sleeve coated on the memory bending piece, and the two shells are respectively arranged at two ends of the memory bending piece.

Preferably, the casing includes an outer casing and an inner casing that are fastened to each other, the partition plate and the inner casing enclose to form the first chamber, the partition plate and the outer casing enclose to form the second chamber, one side of the air deflector is integrally connected with the inner casing, and the other side of the air deflector abuts against the partition plate.

Preferably, the neck hanging piece further comprises a wind shield integrally connected with the wind deflector, and the free end of the wind shield abuts against the wall surface of the air outlet of the volute.

Preferably, the cross-sectional area of the air duct is gradually reduced from the end part of the neck hanging piece to the middle part.

In the above-mentioned scheme of this application, hang the neck fan including hanging the neck spare and set up centrifugal fan and the shock-absorbing element in hanging the neck spare, centrifugal fan can produce bigger wind pressure in comparison in other fans including the spiral case around centrifugal fan wheel setting. The damping element is arranged between the outer wall of the volute and the inner wall of the neck hanging piece, absorbs vibration generated by the centrifugal fan, and can eliminate a gap between the centrifugal fan and the neck hanging piece, so that the centrifugal fan can work better.

Drawings

FIG. 1 is a perspective view of a pressurized hanging neck fan in an embodiment of the present application;

FIG. 2 is an assembled view of a pressurized muffler fan according to an embodiment of the present application;

FIG. 3 is a partial cross-sectional view of a pressurized muffler fan according to an embodiment of the present application;

fig. 4 is a partial assembly view of a pressurized muffler fan according to an embodiment of the present application.

The reference numbers illustrate:

100-neck hanging piece, 110-flexible section, 111-memory bending piece, 112-soft sleeve, 113-rigid sleeve, 120-shell, 121-outer shell, 122-inner shell, 123-switch key, 130-division plate, 140-air deflector and 150-air deflector;

101-an air inlet hole, 102-an air outlet hole, 103-a first chamber, 104-a second chamber, 1031-a sub-chamber and 1032-an air duct;

200-centrifugal fan, 210-volute, 211-air outlet, 212-air inlet and 220-centrifugal fan wheel; 300-damping element, 301-hollowed out hole;

400-control unit, 410-circuit board, 420-battery, 430-switch.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the drawings and specific embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the following description, reference is made to the expression "some embodiments" which describe a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

It will also be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "inner," "outer," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1 to 4, an embodiment of the present application provides a pressure-increasing type neck hanging fan for hanging on a neck of a human body, the pressure-increasing type neck hanging fan includes: the hanging neck piece 100, the centrifugal fan 200 and the damping element 300 are arranged in the hanging neck piece 100; the shape of the neck hanging piece 100 is adapted to the neck of a human body, the neck hanging piece can be hung on the neck of the human body, an air duct 1032 is formed in the neck hanging piece 100, and an air outlet 102 corresponding to the air duct 1032 and an air inlet 101 corresponding to the centrifugal fan 200 are arranged on the neck hanging piece 100; the centrifugal fan 200 includes a volute 210 and a centrifugal impeller 220 disposed in the volute 210, an air outlet 211 of the volute 210 is communicated with an air duct 1032, the volute 210 is mounted in the neck hanging piece 100, and a damping element 300 is disposed between an outer wall of the volute 210 and an inner wall of the neck hanging piece 100.

The damping element 300 is used for absorbing vibration generated by the centrifugal fan 200, and can eliminate a gap between the centrifugal fan 200 and the neck hanging piece 100, thereby preventing the centrifugal fan 200 from colliding with the neck hanging piece 100 to generate sound. The damping element 300 may be an elastic washer or an elastic washer, and two axial ends of the volute 210 may be respectively provided with one damping element 300, so as to achieve a better damping effect. To ensure the air inlet amount of the centrifugal fan 200, air inlets 212 may be formed at both axial ends of the scroll 210, and air inlet holes 101 may be formed at the inner sidewall and the outer sidewall of the neck hanging member 100, respectively, so that air can be introduced at both axial ends of the scroll 210. The damping element 300 avoids the air inlet 212 of the volute 210 and the air inlet hole 101, or a hollow hole 301 corresponding to the air inlet 212 and the air inlet hole 101 is formed on the damping element 300, so as to prevent the air inlet of the centrifugal fan 200 from being affected. Wherein, the elastic gasket can be silica gel, rubber or other flexible materials. In the embodiment shown in the drawings, 1 elastic gasket is respectively arranged at two axial side ends of the volute 210, wherein 1 elastic gasket is rectangular, and avoids the air inlet 212 and the air inlet hole 101 of the volute 210, and the other 1 elastic gasket has the same shape as the side wall of the volute 210 and is provided with a hollow hole 301. It should be noted that, the shape of the elastic gasket is not particularly limited as long as the elastic gasket can achieve the purpose of buffering and does not affect the air intake of the volute 210.

The centrifugal fan 200 has the characteristics of high efficiency and low noise, air enters the neck hanging piece 100 from the air inlet hole 101, and after the centrifugal fan wheel 220 accelerates the air flow, the air flow accelerates in the volute 210 to form an air flow and is sent to the air duct 1032 from the air outlet 211 of the volute 210, and finally is sent out through the air outlet hole 102, corresponding to the air duct 1032, on the neck hanging piece 100. The inner wall of the volute 210 may extend in a logarithmic spiral or an archimedean spiral for better acceleration. The air outlet 211 of the volute 210 may face and extend into the air channel 1032 so that the wind generated by the centrifugal fan 200 is delivered into the air channel 1032 with minimal loss.

In the above-mentioned scheme of this application, hang the neck fan including hang neck spare 100 and set up centrifugal fan 200 and the shock-absorbing element 300 in hanging neck spare 100, centrifugal fan 200 can produce bigger wind pressure in comparison with other fans. The damping element 300 is disposed between the outer wall of the scroll 210 and the inner wall of the neck hanging piece 100, absorbs the vibration generated by the centrifugal fan 200, and simultaneously eliminates the gap between the centrifugal fan 200 and the neck hanging piece 100, so that the centrifugal fan 200 can work better, and after entering the neck hanging piece 100 from the air inlet hole 101, the air is accelerated by the centrifugal fan wheel 220 in the scroll 210 to form a powerful air flow to be sent out from the air outlet hole 102, thereby providing a better cooling effect for the neck of a human body.

As a specific embodiment of the present invention, the neck hanging piece 100 includes a flexible section 110 and shells 120 symmetrically disposed at two ends of the flexible section 110, a partition plate 130 and an air deflector 140 are disposed in each shell 120, the partition plate 130 partitions a cavity in the shell 120 into a first cavity 103 located at an inner side and a second cavity 104 located at an outer side, the air deflector 140 partitions the first cavity 103 into a sub-cavity 1031 and an air duct 1032; the centrifugal fan 200 is installed in the air duct 1032 and near the end of the neck hanging piece 100, and the air outlet 102 is disposed on the casing 120 at a position corresponding to the air duct 1032. In this embodiment, a cavity is formed in the housing 120, the partition plate 130 extends along the length direction and the width direction of the housing 120 to divide the cavity in the housing 120 into the first chamber 103 and the second chamber 104, the air deflector 140 extends along the length direction and the thickness direction of the housing 120 to further divide the first chamber 103 into the sub-chamber 1031 and the air duct 1032, and the sub-chamber 1031, the air duct 1032 and the second chamber 104 are independent from each other and are not communicated with each other. Under the combined action of the partition plate 130 and the air deflector 140, a smaller air duct 1032 is partitioned from a larger cavity, and the air generated by the centrifugal fan is more concentrated and has larger air pressure after entering the air duct 1032. Furthermore, the partition plate 130 and the air guide plate 140 are both arc-shaped plate shapes adapted to the extending shape of the casing 120, and one sides of the partition plate 130 and the air guide plate 140 close to the centrifugal fan are both designed to be smooth surfaces, so that loss in the air outlet process is reduced. The flexible section 110 is used for deforming the neck hanging piece 100, so that the blowing gesture can be changed. In other embodiments, the neckpiece 100 may be a unitary structure or may not include the flexible segment 110 and be formed directly from the two shells 120.

Preferably, the flexible segment 110 includes a memory bending member 111 and a soft sleeve 112 covering the memory bending member 111, and the housing 120 is connected to an end of the memory bending member 111. The memory bending piece 111 enables the neck hanging piece 100 to be opened at a certain angle or twisted at a certain angle under the action of external force, and after the neck hanging fan is hung on the neck, a user can adjust the posture of the neck hanging fan to obtain the most comfortable air outlet angle. The soft cover 112 is used for protecting the memory bending member 111 and can change with the bending shape change of the memory bending member 111. The memory bending member 111 may be a metal hose, a coil pipe, or an element made of a material capable of making the flexible segment 110 have a bending memory function, such as a shaped steel wire, and can be shaped in the shape after being bent. The soft cover 112 may be made of soft rubber such as TPU soft rubber. Further, the end of the memory bending member 111 may be further provided with a rigid sleeve 113, the rigid sleeve 113 is covered in the soft sleeve 112, and when the flexible segment 110 is connected with the shell 120, the outer surface of the soft sleeve 112 is smoothly transited and connected with the outer surface of the shell 120. The rigid sleeve 113 is used to prevent the end of the memory bent piece 111 from being deformed, thereby preventing the gap where the flexible segment 110 and the housing 120 are connected from becoming large.

Preferably, the pressurized hanging neck fan further comprises a control unit 400, the control unit 400 is disposed in the first chamber 103 or the second chamber 104, and the control unit 400 comprises a circuit board 410 electrically connected to the centrifugal fan 200 and a battery 420 electrically connected to the circuit board 410. The control unit 400 is disposed outside the air duct 1032, so as to avoid generating resistance to air outlet, and has a compact structure. The circuit board 410 is provided with a switch 430, and the switch 430 is used for controlling the start and stop of the centrifugal fan 200. In the embodiment shown in the drawings, two batteries 420 are provided, two batteries 420 are respectively provided in the second chambers 104 of the two housings 120, only one circuit board 410 is provided in one of the second chambers 104, and the two batteries 420 and the two centrifugal fans 200 are respectively connected to the circuit board 410. In other embodiments, 2 circuit boards 410 may be provided, each circuit board 410 controls 1 centrifugal fan 200, and a user may turn on only the left centrifugal fan 200 or only the right centrifugal fan 200.

Further, the housing 120 includes an outer shell 121 and an inner shell 122 that are fastened to each other, the partition plate 130 may be detachably mounted on the outer shell 121 or the inner shell 122 by a threaded fastener or a buckle, the partition plate 130 and the inner shell 122 enclose to form the first chamber 103, the partition plate 130 and the outer shell 121 enclose to form the second chamber 104, one side of the air deflector 140 is integrally connected with the inner shell 122, the other side of the air deflector 140 abuts against the partition plate 130, and the outer shell 121 and the inner shell 122 are both provided with air inlet holes 101. The air guide plate 140 serves to guide the wind as well as to form the wind tunnel 1032. The casing 121 may be further provided with a switch button 123, the switch button 123 corresponding to a switch 430 on the circuit board 410, and a user turns on or off the centrifugal fan 200 by touching the switch button 123.

Further, the neck hanging piece 100 further comprises a wind deflector 150 integrally connected with the wind deflector 140, and a free end of the wind deflector 150 abuts against a wall surface of the air outlet 211 of the volute 210. Wind deflector 150 is used to eliminate a gap between air outlet 211 and air duct 1032, and plays a role of preventing air leakage, so that the wind generated by centrifugal fan 200 is delivered into air duct 1032 with minimum loss.

Preferably, the number of the outlet holes 102 is plural, and the plural outlet holes 102 extend along the length direction of the air duct 1032. Adopt the mode of porous air-out, can make whole neck cool down uniformly, promote experience effect. Preferably, the sectional area of the air channel 1032 gradually decreases from the end of the neck hanger 100 to the middle. The gradual narrowing of the air channel 1032 can converge the air flow, so that the air pressure is increased. In addition, the gradual narrowing of the air duct 1032 can also eliminate the problem that the flow speed of the air flow is gradually reduced in the process of advancing, so that the air speeds of the air outlet holes 102 on the air duct 1032 are as consistent as possible.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a neck fan is hung to booster-type which characterized in that includes: the neck hanging piece is used for being worn on the neck of a human body, and the centrifugal fan and the damping element are arranged in the neck hanging piece; an air duct is formed in the neck hanging piece, and an air outlet corresponding to the air duct and an air inlet corresponding to the centrifugal fan are formed in the neck hanging piece; the centrifugal fan comprises a volute and a centrifugal fan wheel arranged in the volute, an air outlet of the volute is communicated with the air channel, the volute is arranged in the neck hanging piece, and the damping element is arranged between the outer wall of the volute and the inner wall of the neck hanging piece.

2. The supercharged neck hanging fan of claim 1, wherein the vibration reduction element is an elastic washer or an elastic washer, and one vibration reduction element is respectively disposed at both axial side ends of the scroll casing.

3. The supercharged type neck hanging fan according to claim 2, wherein air inlets are formed at both axial ends of the scroll casing, the air inlet holes are formed at inner and outer side walls of the neck hanging member, respectively, and the damping member avoids the air inlets and the air inlet holes, or hollowed holes corresponding to the air inlets and the air inlet holes are formed in the damping member.

4. The supercharged neck hanging fan of claim 1, wherein the outlet of the volute faces and extends into the air duct.

5. The supercharged neck hanging fan according to any one of claims 1 to 4, wherein the neck hanging piece comprises two symmetrically arranged shells, a partition plate and an air deflector are arranged in each shell, the partition plate divides a cavity in each shell into a first chamber and a second chamber, and the air deflector divides the first chamber into a sub-chamber and the air channel; each shell is internally provided with one centrifugal fan, the centrifugal fans are arranged in the air channels, and the air outlet holes are formed in the positions, corresponding to the air channels, on the shells.

6. The supercharged neck hanging fan of claim 5 further comprising a control unit disposed in the first chamber or the sub-cavity, the control unit comprising a circuit board electrically connected to the centrifugal fan and a battery electrically connected to the circuit board.

7. The supercharged neck hanging fan according to claim 5, wherein the neck hanging piece further comprises a flexible section, the flexible section comprises a memory bending piece and a soft sleeve covering the memory bending piece, and the two casings are respectively arranged at two ends of the memory bending piece.

8. The supercharged neck hanging fan according to claim 5, wherein the casing comprises an outer casing and an inner casing which are fastened to each other, the partition plate and the inner casing enclose to form the first chamber, the partition plate and the outer casing enclose to form the second chamber, one side of the air deflector is integrally connected with the inner casing, and the other side of the air deflector abuts against the partition plate.

9. The supercharged neck hanging fan of claim 5, wherein the neck hanging piece further comprises a wind deflector integrally connected with the wind deflector, and a free end of the wind deflector abuts against a wall surface of the wind outlet of the volute.

10. The supercharged neck hanging fan of claim 5 wherein the cross-sectional area of the air duct decreases from the end of the neck hanging piece towards the middle.