CN216407226U

CN216407226U - Hang neck fan

Info

Publication number: CN216407226U
Application number: CN202122495912.9U
Authority: CN
Inventors: 李享福; 郑观正; 谢佳航
Original assignee: Shenzhen Jisu Technology Co Ltd
Current assignee: Shenzhen Jisu Technology Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-04-29
Anticipated expiration: 2031-10-15

Abstract

The utility model discloses a neck hanging fan, comprising: the arc-shaped shell comprises a wearing part matched with the neck and air inlet parts connected to two sides of the wearing part, the air inlet parts are provided with accommodating spaces, and air outlets are formed in the wearing part; a partition plate is arranged in the air inlet part, and a plurality of through holes are formed in the partition plate; and the oblique flow fan assembly is arranged in the air inlet part and used for guiding the external air to flow through the through hole and blow out the air from the air outlet. The oblique flow fan component enables air to enter in a direction forming a certain angle with the axis, so that the air loss in the flow is less, and the air outlet quantity is larger. The air entering from the through holes is uniform in air inlet through the through holes, and the generation of wind noise is reduced. Therefore, the pressure and the speed of the wind at the air outlet are kept uniform, the air is uniformly discharged, and the comfort level in use is improved.

Description

Hang neck fan

Technical Field

The utility model relates to the technical field of neck hanging fans, in particular to a neck hanging fan.

Background

The wide application of hanging the neck fan in work and life, current hanging the neck fan and use axial fan usually, introduce external air through axial fan, and axial fan is when using, and the air loss appears easily in the flow in-process and makes the air output less to wind makes things noisy great, and the air-out is inhomogeneous and makes the comfort level relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a neck hanging fan, and solves the problems of small air outlet quantity, large air noise and uneven air outlet of the neck hanging fan.

In order to solve the above technical problem, one technical solution adopted by the present invention is to provide a neck hanging fan, including: the arc-shaped shell comprises a wearing part matched with the neck and air inlet parts connected to two sides of the wearing part, the air inlet parts are provided with accommodating spaces, and air outlets are formed in the wearing part; a partition plate is arranged in the air inlet part, and a plurality of through holes are formed in the partition plate; and the oblique flow fan assembly is arranged in the air inlet part and used for guiding the external air to flow through the through hole and blow out from the air outlet.

Preferably, the air inlet part is divided into a placing section and an air inlet section by the partition plate, an air inlet is formed in the side wall of the air inlet section, and the oblique flow fan assembly guides air in the air inlet to flow through the through hole and blow out the air outlet.

Preferably, the wearing part is detachably connected with the air inlet part.

Preferably, place the section and can dismantle with the air inlet section and be connected, the baffle sets up in the air inlet section and is close to on the terminal surface of placing section one end or the baffle sets up on placing the terminal surface that the section is close to air inlet section one end.

Preferably, the diagonal flow fan assembly is at least partially disposed at the air inlet portion, the diagonal flow fan assembly includes an impeller and a motor for driving the impeller to rotate, and the impeller includes a first air guiding cone and diagonal flow blades disposed on the first air guiding cone.

Preferably, the diagonal flow fan assembly further includes an air guide, the air guide includes a sleeve, a stationary blade disposed on an outer wall of the sleeve, an air guide ring circumferentially connected to the stationary blade, and a second air guide cone disposed on an end face of the sleeve and facing the wearing portion, and the motor is mounted in the sleeve.

Preferably, the inner wall of the first air guiding cone extends circumferentially towards the motor to form a mounting cylinder, a rotating shaft is arranged in the first air guiding cone, the diameter of the mounting cylinder is smaller than that of the sleeve, and at least part of the mounting cylinder extends into the sleeve and is arranged on the periphery of the motor in a surrounding mode.

Preferably, hang neck formula fan and still include the external casing of dismantling the connection with air inlet portion, be provided with power supply module in external casing and/or the wearing portion, power supply module and diagonal flow fan module electric connection.

Preferably, the air inlet portion respectively is equipped with first magnetic part including keeping away from the end wall of wearing portion one end in the end wall, respectively is provided with the second magnetic part in two terminal surfaces of external casing, and first magnetic part just sets up and attracts each other with the second magnetic part.

Preferably, one of the end wall of the air inlet section and the end surface of the external shell is provided with a probe, and the other of the end wall of the air inlet section and the end surface of the external shell is provided with a contact.

The utility model has the beneficial effects that: the oblique flow fan assembly is used for enabling air to enter in a direction forming a certain angle with the axis, and the oblique flow fan assembly is used for changing the obliquely entering air into a radial direction, so that the air loss is low in the flowing process, and the air outlet amount is large. The air entering from the through holes is uniform in air inlet through the through holes, and the generation of wind noise is reduced. Thereby the pressure and the speed of the wind at the air outlet are kept uniform, the air outlet is uniform, and the comfort level in use is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a neck hanging fan according to the utility model;

FIG. 2 is an exploded view of an embodiment of a muffler fan according to the present invention;

FIG. 3 is a schematic cross-sectional view of an embodiment of a neck hanging fan according to the present invention;

FIG. 4 is a schematic diagram illustrating a cross-sectional view of a diagonal flow fan assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an air guide according to an embodiment of the neck hanging fan of the present invention;

FIG. 6 is a schematic view of an air inlet section of an embodiment of the muffler fan according to the present invention;

fig. 7 is a partial structural schematic view of an external connection shell according to an embodiment of the neck hanging fan of the utility model.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is to be noted that, 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 utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1, 2 and 3 show an embodiment of a neck hanging fan of the present invention, comprising: the arc-shaped shell 10 comprises a wearing part 101 matched with a neck and air inlet parts 102 connected to two sides of the wearing part 101, wherein the air inlet parts 102 are provided with accommodating spaces, and an air outlet 1011 is formed in the wearing part 101; a partition plate 20 is arranged in the air inlet part 102, a plurality of through holes 201 are formed in the partition plate 20, and an air inlet 1021 is formed in the side wall between the partition plate 20 and the end face of the air inlet part 102 far away from the wearing part 101; and the diagonal flow fan assembly 30, the diagonal flow fan assembly 30 is arranged in the air inlet part 102, and is used for guiding the external air to the air outlet 1011 through the through hole 201 and blowing out.

The air is introduced into the fan assembly 30 at an angle to the axis, and the air introduced obliquely into the fan assembly 30 is changed into a radial direction, so that the air loss is small and the air output is large. And the pressure and the speed of wind at the air outlet 1011 are kept uniform, the air outlet is uniform, and the comfort level in use is improved. The external air enters from the through holes 201 of the partition board 20, and the uniform air inlet can be realized, thereby reducing the generation of wind noise.

Preferably, as shown in fig. 1, 2 and 3, the wearable portion 101 and the air inlet portion 102 can be detachably connected by means of a snap, a magnetic attraction, and the like, so that the diagonal flow fan assembly 30 in the air inlet portion 102 can be conveniently maintained when the wearable portion is detachably connected.

Preferably, as shown in fig. 1, 2 and 3, the partition 20 is disposed in the middle of the air inlet portion 102 to divide the air inlet portion 102 into a placing section 1022 and an air inlet section 1023, and an air inlet 1021 is disposed on a side wall of the air inlet section 1023. The air inlet 1021 is arranged on the side to reduce wind noise.

The diagonal flow fan assembly 30 guides the air entering from the air inlet 1021 to the air outlet 1011 through the through hole 201 and blows out the air, and the air entering from the air inlet 1021 can be uniformly fed through the through hole 201 by the partition board 20, so that the generation of wind noise is reduced.

The placement section 1022 and the air intake section 1023 may be of unitary construction.

Preferably, the placement section 1022 is detachably connected to the intake section 1023. Partition 20 is disposed on the end surface of the air intake section 1023 near the end of the placing section 1022 or partition 20 is disposed on the end surface of the placing section 1022 near the end of the air intake section 1023.

Preferably, the diagonal flow fan assembly 30 is at least partially disposed on the placing section 1022 for guiding the wind from the wind inlet 1021 to flow through the through hole 201 to the wind outlet 1011 for blowing out, the diagonal flow fan assembly 30 includes an impeller 301 and a motor 302 for driving the impeller 301 to rotate, the impeller 301 includes a first wind guiding cone 3011 and diagonal flow blades 3014 disposed on the first wind guiding cone 3011. The incoming air can be guided through the first air guide cone 3011.

Preferably, as shown in fig. 3, 4 and 5, an inner wall of the first air guiding cone 3011 extends circumferentially toward the motor 302 to form a mounting cylinder 3012, a rotating shaft 3013 is disposed in the first air guiding cone 3011, a diameter of the mounting cylinder 3012 is smaller than a diameter of the sleeve 3031, and the mounting cylinder 3012 extends at least partially into the sleeve 3031 and is disposed around the periphery of the motor 302.

As shown in fig. 2, 3 and 4, the diagonal flow fan assembly 30 further includes an air guide member 303, the air guide member 303 includes a sleeve 3031, a stationary blade 3032 provided on an outer wall of the sleeve 3031, an air guide ring 3033 circumferentially connected to the stationary blade 3032, and a second air guide cone 3034 provided on an end surface of the sleeve 3031 and facing the wearing portion 101, and the motor 302 is mounted in the sleeve 3031.

The second air guide cone 3034 can intensively guide the air entering into the wearing part 101, and make the air entering into the wearing part 101 uniform. The generation of wind noise is reduced. The motor 302 is sealed in the sleeve 3031, so that the sealing performance of the neck hanging fan is improved, the motor 302 is protected, and the motor is more stable and safer in the using process of the neck hanging fan.

In some embodiments, the diagonal flow fan assembly 30 may be disposed entirely within the air intake 102.

In some embodiments, the diagonal flow fan assembly 30 is partially disposed within the air inlet portion 102 and partially extends into the wearing portion 101. For example, the impeller 301 and the motor 302 may be disposed in the air inlet portion 102, and the air guide 303 may extend into the wearing portion 101.

Preferably, when the second wind guiding cone 3034 in the wind guiding member 303 extends into the wearing portion 102, an end surface of the wearing portion 101 near one end of the wind inlet portion 102 is provided with an enlarged opening to be fittingly connected with the wind inlet portion 102 and accommodate the second wind guiding cone 3034.

Further, as shown in fig. 1, 2 and 3, the hanging neck type fan further includes an external casing 40 detachably connected to the air inlet portion 102, a power supply assembly 50 is disposed in the external casing 40 and/or the wearing portion 101, and the power supply assembly 50 is electrically connected to the diagonal flow fan assembly 30. The power supply component 50 is a USB interface and/or a rechargeable battery.

Preferably, a control board may be further disposed in the external housing 40 and/or the wearing portion 101, the battery is connected to the control board, and the control board is connected to the diagonal flow fan assembly 30. The control board and the battery may be disposed within the arc-shaped housing 10.

The rechargeable battery provided in the external case 40 can be selected as needed to have a large capacity, so that the service life of the neck hanging fan can be prolonged. When processing, can set up the battery in arc shell 10 alone, also can set up the battery in external casing 40 alone, can also set up rechargeable battery in arc shell 10 and external casing 40 simultaneously, even after rechargeable battery in arc shell 10 does not have the electricity, can use rechargeable battery in external casing 40 equally to improvement that can be very big hangs the live time of neck fan.

Preferably, the external housing 40 has an arc shape, the external housing 40 includes a first housing 401 and a second housing 402 that are engaged with each other, and the power module 50 and/or the control board may be disposed between the first housing 401 and the second housing 402.

When the external housing 40 is detachably connected to the air inlet portion 102, maintenance or charging of the power supply module 50 in the external housing 40 can be facilitated. When the rechargeable battery is disposed in the arc-shaped casing 10, the rechargeable battery in the external casing 40 can be used as a backup battery, so that the neck hanging fan can be continuously used.

The external housing 40 and the air inlet portion 102 can be detachably connected by means of a snap fit or the like.

Preferably, as shown in fig. 6 and 7, the air intake section 1023 includes an end wall far away from the end of the placing section 1022, the end wall is respectively provided with a first magnetic member 601, two end faces of the external housing 40 are respectively provided with a second magnetic member 602, and the first magnetic member 601 and the second magnetic member 602 are arranged opposite to each other and attract each other.

The first magnetic member 601 and the second magnetic member 602 may be both magnetic magnets, or the first magnetic member 601 or the second magnetic member 602 may be a magnet, and the corresponding second magnetic member 602 or the first magnetic member 601 may be a magnetically attractable metal such as iron or an iron alloy.

The external shell 40 and the air inlet part 102 are detachably connected through the magnetic adsorption of the first magnetic piece 601 and the second magnetic piece 602, so that the installation efficiency of the external shell 40 can be improved, and the installation and the disassembly are convenient.

Preferably, as shown in fig. 4, 6 and 7, the end wall of the placing section 1022 has a projection 701 protruding downward, and the upper end of the outer casing 40 has a recess 702 recessed downward to fit the projection 701. The external housing 40 is firmly connected with the air inlet portion 102 by the matching of the boss 701 and the groove 702.

When the outer casing 40 is detachably connected to the air inlet portion 102, it is preferable that, as shown in fig. 6 and 7, one of the end wall of the placement section 1022 and the end surface of the outer casing 40 is provided with a probe 801, and the other is provided with a contact 802. When the external housing 40 is connected to the air inlet 102 by suction, the contact 802 is in contact with the probe 801 for conduction. Thereby electrically connecting the rechargeable battery within the external housing 40 to the fan motor 302 of the diagonal flow fan assembly 30.

Therefore, the oblique flow fan assembly changes the obliquely entering air into the radial direction, so that the air loss in the flow is less, and the air outlet quantity is larger. The pressure and the speed of the air at the air outlet are kept uniform, so that the aim of uniformly discharging the air is fulfilled. And can set up the battery in neck portion alone, also can set up the battery in external shell alone, can also set up the battery in neck portion and external shell simultaneously, even after the battery in the neck portion does not have the electricity, can use the battery in the external shell equally to improvement that can be very big hangs the live time of neck fan.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.

Claims

1. A neck hanging fan is characterized by comprising:

the arc-shaped shell comprises a wearing part matched with the neck and air inlet parts connected to two sides of the wearing part, the air inlet parts are provided with accommodating spaces, and air outlets are formed in the wearing part;

a partition plate is arranged in the air inlet part, and a plurality of through holes are formed in the partition plate;

and the oblique flow fan assembly is arranged in the air inlet part and used for guiding the external air to flow through the through hole and blow out the air from the air outlet.

2. The hanging neck fan as claimed in claim 1, wherein the partition divides the air inlet portion into a placing section and an air inlet section, an air inlet is disposed on a side wall of the air inlet section, and the diagonal flow fan assembly guides air from the air inlet to flow through the through hole to the air outlet.

3. The neck hanging fan as claimed in claim 1, wherein the wearing portion is detachably connected to the air inlet portion.

4. The hanging neck fan as claimed in claim 2, wherein the placing section is detachably connected to the air intake section, and the partition is disposed on the end surface of the air intake section near one end of the placing section or on the end surface of the placing section near one end of the air intake section.

5. The hanging neck fan as claimed in any one of claims 1 to 4, wherein the diagonal flow fan assembly is at least partially disposed at the air inlet portion, the diagonal flow fan assembly includes an impeller and a motor for driving the impeller to rotate, and the impeller includes a first air guiding cone and diagonal flow blades disposed on the first air guiding cone.

6. The neck fan as claimed in claim 5, wherein the diagonal flow fan assembly further comprises a wind guide member, the wind guide member comprises a sleeve, a stationary blade disposed on an outer wall of the sleeve, a wind guide ring circumferentially connected to the stationary blade, and a second wind guide cone disposed on an end surface of the sleeve and facing the wearing portion, and the motor is mounted in the sleeve.

7. The neck fan as claimed in claim 6, wherein the inner wall of the first funnel extends circumferentially toward the motor to form a mounting tube, a rotating shaft is disposed in the first funnel, the diameter of the mounting tube is smaller than that of the sleeve, and at least a portion of the mounting tube extends into the sleeve and is disposed around the periphery of the motor.

8. The hanging neck fan as claimed in claim 2, further comprising an external casing detachably connected to the air inlet portion, wherein a power supply assembly is disposed in the external casing and/or the wearing portion, and the power supply assembly is electrically connected to the diagonal flow fan assembly.

9. The neck fan as claimed in claim 8, wherein the air inlet portion includes an end wall far away from the end of the wearing portion, the end wall is provided with a first magnetic member, the two end surfaces of the external casing are provided with a second magnetic member, and the first magnetic member and the second magnetic member are opposite to each other and attract each other.

10. The hanging neck fan as claimed in claim 9, wherein one of the end wall of the air intake section and the end surface of the external casing is provided with a probe, and the other is provided with a contact.