CN117847008A

CN117847008A - Neck hanging fan

Info

Publication number: CN117847008A
Application number: CN202211289788.3A
Authority: CN
Inventors: 谢京司; 陈祝松
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-01
Filing date: 2022-10-21
Publication date: 2024-04-09
Also published as: CN117847007A; CN115653941A; CN115653938A; CN218439898U; CN218439897U

Abstract

The utility model provides a hang neck fan, hang neck fan includes fan and major structure, the fan includes the pressure boost centrifugal fan, the pressure boost centrifugal fan includes the flabellum, the flabellum is the ternary blade of distortion form at least for part, with promote the amount of wind and the wind pressure that hang the inside gaseous flow of neck fan, major structure is used for setting up the air intake, fan and air outlet, major structure still is formed with one or more and is used for the ventilation hole of circulation of air, wherein, the fan is used for inhaling the wind and blowing out from the air outlet through the air intake, the ventilation hole is used for allowing the air free flow adjacent the neck, moreover, through adopting the structure in ventilation hole and the pressure boost centrifugal fan of ternary blade to carry out organic combination, can get rid of the size that increases owing to the ternary blade, whole is lighter and more exquisite from the vision, avoid the confined space of big blade caused and the hot sense of steamer formula that causes, ensure user's use experience and marketing of product.

Description

Neck hanging fan

Technical Field

The application belongs to the technical field of fans, and particularly relates to a neck hanging fan which is suitable for being carried about, liberates two hands and achieves high wind pressure and air quantity.

Background

In the prior art, a portable fan, such as a neck hanging fan, is generally used for hanging the neck of a straight user, and the fan is not needed to be held by hand, so that hands can be liberated, and the fan is very convenient.

However, after many years of use, the inventors of the present application have found that all existing products of the neck-hanging fan have a serious product defect, such as the integral comparative integrated neck-hanging fan shown in fig. 1, and since the main structure of the neck-hanging fan generally substantially conforms to the dimension radius of the blade impeller of the fan, the main structure is in a flat and long strip shape, and in use, the product defect is very prominent: when the main structure is hung on the neck, the whole body is enclosed into a circle and is in a fence shape, and the main structure is the main structure which blocks the fence shape, so that the neck and the external space are physically isolated, and wind in the external space cannot be blown to the neck any more.

The defect of the product is more prominent when the product is used in hot summer, the neck of a user is generally sweated and stuck due to heat, and the fence-shaped main body structure perfectly blocks the wind in the external space at the moment, so that the heat cannot be emitted, and the sweats are aggravated. Furthermore, under the condition that no external space is used for air intake and heat dissipation, a closed space similar to a steamer is formed on the neck, the neck is further overheated, after the heat is transmitted to the main body structure of the neck hanging fan, the heat cannot be dissipated, the heat is reversely transmitted to sensitive neck skin, so that the skin is hot, the user can use the product very severely, even if the product is already available for years, the product is rarely used in daily life, and a user who is generally a hunter mental is trying to use the product.

In order to solve the problems of closed space and hot feeling of the steamer type, a part of existing products can use a semiconductor refrigeration heat dissipation module to conduct stress heat dissipation on skin or use a neck support structure to be used, however, the stress heat dissipation mode does not accord with the use scene of the neck, because the neck is a key channel for connecting a body and a head, blood vessels and pulses are densely distributed on the neck, the semiconductor refrigeration is used for rapidly freezing the neck in a very short time, and some neck protection physiotherapy equipment is used for heating and massaging the neck, so that the semiconductor refrigeration can form certain injuries to the blood vessels and the pulses in theory. Further, the refrigerating efficiency of semiconductor refrigeration is low, and generally the refrigerating efficiency is about 20 seconds, which is about the same as the human body temperature, so that the technology cannot solve the problems of the closed space of the steamer and the hot feeling, but also causes other more health problems. In addition, the neck brace structure only makes the main body structure slightly leave the neck at a certain position, but the main body structure of enclosure shape still closes up the neck of user on the whole, does not solve the technical problem how the wind in external space blows to the neck.

In order to solve the problems of the closed space of the steamer type and the hot feeling, some existing products adopt a non-integral type neck hanging fan with a structure shown in fig. 2, and a hose is adopted to avoid a fence-shaped main body structure, however, the product has a worse disadvantage that firstly, hair is easy to roll after the fan blade is exposed, secondly, even if a metal shaping piece is added in the hose, the hose is easy to shake, especially when the steamer type neck hanging fan is used outdoors, the fan is easy to shake and deviate from the direction of blowing, and because of the disadvantage, the product shown in fig. 2 is more difficult to popularize, has little market group and does not have market competitiveness.

In addition, in the prior art and the existing products, radial double-air-inlet centrifugal fans are generally adopted, and the radial double-air-inlet centrifugal fans have the advantages of simple process, but have the defects of unbalanced wind pressure and insufficient wind pressure, and are easy to be interfered by moving wind when being used outdoors, so that the use experience is affected.

Through intensive researches on the products and related patents, the inventor of the application finds that the technical problems of the closed space of the steamer and the hot defects cannot be fundamentally solved, and particularly the integrated neck hanging fan is needed to solve the technical problems of the defects, so that the user experience is improved, and the marketization and popularization of the products are facilitated.

In view of this, the inventor of the present application provides a new neck hanging fan and an air duct device thereof, so as to solve the technical problems of the existing neck hanging fan, such as the closed space of the steamer, the hot feeling, and the product defect, and to improve the blowing wind pressure and the wind volume.

Disclosure of Invention

The purpose of this application is to overcome above-mentioned prior art's technical problem and product defect, provides a hang neck fan, and it aims at improving cooling efficiency.

In order to solve the above technical problem, the present application provides a hang neck fan, as one of them embodiment, hang neck fan includes:

the fan comprises a booster centrifugal fan, wherein the booster centrifugal fan comprises fan blades, and the fan blades are ternary blades with at least parts being twisted, so that the air quantity and the air pressure of the air flowing in the neck hanging fan are improved;

the main body structure is used for setting an air inlet, the fan and an air outlet, and one or more ventilation holes for ventilation are formed in the main body structure, wherein the fan is used for sucking air through the air inlet and blowing out from the air outlet, and the ventilation holes are used for allowing air adjacent to the neck to flow freely.

The utility model provides a hang neck fan, hang neck fan includes fan and major structure, the fan includes the centrifugal fan of pressure boost, centrifugal fan of pressure boost includes the flabellum, the flabellum is the ternary blade of distortion form for at least part to promote the inside gaseous air quantity and the wind pressure that flow of hanging the neck fan, major structure is used for setting up the air intake fan and air outlet, major structure still is formed with one or more and is used for the ventilation hole of circulation of air, wherein, the fan is used for with the wind is via the air intake is inhaled and follows the air outlet blows out, the ventilation hole is used for allowing the air free flow adjacent the neck. Through the technical scheme of the application, at least a plurality of following technical effects can be realized:

(1) The fan blade impeller with the conventional or even larger-sized radius can be used for ensuring the effect of blowing and radiating, and ventilation and radiating of the neck part are performed through the vent holes which are skillfully designed while the whole volume of the main body structure is increased, so that a steamer type closed space formed by the larger main body structure can be avoided;

(2) By arranging the vent holes and forming multiple changeable air channels in the main body structure, redundancy of the internal structure of the main body structure is avoided, and all functional components can be arranged at proper positions without filling in the main body structure as in the prior art;

(3) The heating element and other elements can be isolated through the changeable air duct formed by the vent hole, and particularly, high-heat elements such as a control circuit board and the like can be independently arranged in any side wall of the vent hole;

(4) Because the ventilation holes are additionally formed in the main body structure, the contact surface area between the main body structure and the external air is directly increased, and meanwhile, the heat emitted by components in the neck hanging fan can be rapidly dissipated outwards through the larger contact surface area through smooth circulation of the air, so that heat accumulation in the main body structure is avoided;

(5) By arranging the vent holes, fewer materials can be used, so that the whole product is lighter and thinner, and unnecessary load sense brought to the neck of a user due to overweight of the product is avoided;

(6) This application carries out the organic combination through adopting the structure in ventilation hole and ternary blade's pressure boost centrifugal fan, can get rid of owing to ternary blade's pressure boost centrifugal fan increase's size, and whole is lighter and more exquisite in the visual sense on the contrary, avoids the big food steamer type enclosure space that causes and the sense of calm that causes moreover, ensures user's use experience and the marketization of product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an integrated neck fan according to the prior art;

FIG. 2 is a schematic view of a prior art non-integral neck fan;

FIG. 3 is a schematic perspective view of an embodiment of a neckline fan according to the present disclosure;

FIG. 4 is an exploded view of a portion of one embodiment of a neckline fan of the present application;

FIG. 5 is an exploded view of a portion of one embodiment of a neckline fan of the present application;

FIG. 6 is a schematic perspective view of another embodiment of a neckline fan according to the present disclosure;

FIG. 7 is an exploded view of yet another embodiment of a neckline fan of the present application;

FIG. 8 is a schematic exploded view of a further embodiment of a necktie fan of the present application;

FIG. 9 is a schematic cross-sectional view of an embodiment of a neck fan of the present application, wherein the width of the fan and the air duct are shown;

fig. 10 is a schematic perspective view of another embodiment of a neckline fan according to the present application;

FIG. 11 is a schematic view of the inner housing of the neck fan of FIG. 10;

FIG. 12 is a schematic view of the outer casing of the necktie fan of FIG. 10;

fig. 13 is a schematic perspective view of another embodiment of a neckline fan according to the present application;

FIG. 14 is a partially exploded view of yet another embodiment of the neck fan of the present application, wherein a decorative piece is shown;

FIG. 15 is a partially exploded view of yet another embodiment of a necktie fan of the present application;

FIG. 16 is a partially exploded view of yet another embodiment of a necktie fan of the present application;

FIG. 17 is a schematic perspective view of another embodiment of a neckline fan according to the present disclosure;

FIG. 18 is an exploded view of a portion of the neck fan of FIG. 17 from one view;

FIG. 19 is an exploded view of a portion of the neck fan of FIG. 17 from another perspective;

FIG. 20 is an exploded view of a portion of the neck fan of FIG. 17 from another perspective;

FIG. 21 is a schematic view of a structure of another embodiment of the necktie fan of the present application, wherein the fan inside the necktie fan is shown outside;

FIG. 22 is a schematic view showing a structure of another embodiment of the necktie fan, wherein the fan inside the necktie fan is shown outside;

FIG. 23 is a partially exploded view of yet another embodiment of a necktie fan of the present application;

fig. 24 is a schematic perspective view of another embodiment of the necktie fan according to the present application, wherein the fan inside the necktie fan is shown outside;

fig. 25 is a schematic perspective view of another embodiment of the necktie fan according to the present application, wherein the fan inside the necktie fan is shown outside;

FIG. 26 is a partially exploded view of a further embodiment of a necktie fan of the present application;

FIG. 27 is a schematic view of a portion of the neckline fan of FIG. 26;

FIG. 28 is a partially exploded view of the neck fan of FIG. 26 from another perspective, showing a control circuit board disposed on the other side from the vent;

fig. 29 is a schematic perspective view of another embodiment of the necktie fan according to the present application, wherein the fan inside the necktie fan is shown outside;

fig. 30 is a schematic perspective view of another embodiment of the necktie fan according to the present application, in which the fan inside the necktie fan is shown outside.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

Example 1

Referring to fig. 3 to 9, fig. 3 is a schematic perspective view of an embodiment of a neck fan according to the present application, fig. 4 is a schematic exploded view of a partial structure of an embodiment of a neck fan according to the present application, fig. 5 is a schematic exploded view of a partial structure of an embodiment of a neck fan according to the present application, fig. 6 is a schematic exploded view of a stereoscopic structure of another embodiment of a neck fan according to the present application, fig. 7 is a schematic exploded view of a structure of another embodiment of a neck fan according to the present application, fig. 8 is a schematic exploded view of a structure of another embodiment of a neck fan according to the present application, and fig. 9 is a schematic exploded view of a cross-sectional structure of an embodiment of a neck fan according to the present application, wherein widths of a fan and an air duct are shown.

The embodiment of the application provides a neck hanging fan, which may include a fan 10 and a main body structure 20, wherein the main body structure 20 is used for providing an air inlet 201, the fan 10 and an air outlet 202, the main body structure 20 is further formed with one or more ventilation holes 30 for ventilation, wherein the fan 10 is used for sucking air through the air inlet 201 and blowing out from the air outlet 202, and the ventilation holes 30 are used for allowing air adjacent to the neck to flow freely.

It should be noted that, the main structure 20 of this embodiment includes an inner side 203 adjacent to the neck and an outer side 204 away from the neck, and the ventilation hole 30 penetrates the inner side 203 and the outer side 204 to allow air of the outer side 204 to circulate with air adjacent to the neck.

It is noted that the vent 30 may be one and extend along the length of the body structure 20. Alternatively, the vents 30 may be two and located at the first end 205 and the second end 206 of the body structure 20, respectively, as shown in fig. 5. Alternatively, as shown in fig. 6, the ventilation holes 30 may be three and located at the first end 271, the second end 272, and the middle portion 273 corresponding to the rear neck portion of the main body structure 20, respectively. Alternatively, as shown in fig. 10, the ventilation holes 30 may be four or more and arranged at intervals in an array along the length direction of the main body structure 20.

In the above-described embodiments of one or more vents 30, the overall vent area of the vents 30 may affect the direct vent heat dissipation effect, e.g., the greater the overall vent area, the more pronounced the heat dissipation effect; the present embodiment can increase the total ventilation area by increasing the number of ventilation holes 30 or increasing the area of a single ventilation hole 30. In particular applications, since the material of the main structure 20 may affect the structural strength of the product, the present application may also select to increase the area of the vent 30 according to the material of the main structure 20, or use a mode of matching multiple vents 30 to ensure the structural strength.

Specifically, as shown in fig. 7, the main body structure 20 may include an inner housing 211 and an outer housing 212. The inner housing 211 includes an inner housing body 2110, a first inner housing 2111 and a second inner housing 2112 connected to the inner housing body 2110; the outer case 212 includes a case main body 2120, and first and second cases 2121 and 2122 connected to the case main body 2120; wherein the inner housing body 2110 and the outer housing body 2120 are covered to form the accommodating space 200, the first inner housing 2111 and the first outer housing 2121 are covered to form the first bridge 221, the second inner housing 2112 and the second outer housing 2122 are covered to form the second bridge 222, and the first bridge 221 and the second bridge 222 are matched to form one or more ventilation holes 30.

It should be noted that, in general, the main body structure 20 is designed in a manner that is substantially symmetrical left and right, and therefore, reference numerals of the present application are partially marked at the first ends 205, 271 and the other parts are marked at the second ends 206, 272, etc., and are not to be construed as wrong reference numerals within a range that those skilled in the art will easily understand in combination. Of course, in other embodiments, the main structure 20 may be configured asymmetrically, such as with only one fan 10 disposed at either end, or with only one fan disposed on the middle portion 273, which will not be described in detail in the case of being easily understood by those skilled in the art.

The air inlet 201 may be formed in the inner housing 211 and the outer housing 212, or, taking wearing around the neck of a user as an example, the air inlet 201 may be formed in an inner side 203, an outer side 204, a top surface and/or a bottom surface of the main structure 20, which may be combined according to different ventilation requirements, and may be further combined according to different noises, which is not limited herein.

In addition, the air outlet 202 may be disposed on the inner side 203, the top surface and/or the bottom surface according to actual needs, and may be combined according to different blowing position requirements, and may also be combined according to different noises, which is not limited herein.

It should be noted that, the cross-sectional area of the ventilation channel of the ventilation hole 30 in this embodiment is racetrack-shaped (as shown in fig. 11 and 12), circular, undulating, or similar to the overall shape of the main structure 20, wherein the circular ventilation hole 30 may be arranged in a plurality of rows, the undulating ventilation hole 30 may extend along the length direction of the main structure 20, and the ventilation hole 30 similar to the overall shape of the main structure 20 may visually achieve uniformity and thinness of the overall product.

Through the embodiment, the fan blade impeller with a conventional or even larger-sized radius can be used for ensuring the effect of blowing and radiating, and ventilation and radiating of the neck part are performed through the vent hole 30 which is skillfully designed while the whole volume of the main body structure 20 is increased, so that a steamer-type enclosed space formed by a larger main body structure can be avoided; by providing the vent holes 30 and forming multiple changeable air channels inside the main body structure 20, redundancy of the internal structure of the main body structure 20 is avoided, and all functional components can be arranged at proper positions without filling in the main body structure 20 as in the prior art; the heating element and other elements can be isolated through the changeable air duct formed by the vent hole 30, and particularly, high-heat elements such as a control circuit board and the like can be independently arranged in any side wall of the vent hole 30; because the ventilation holes 30 are additionally arranged on the main body structure 20, the contact surface area between the main body structure 20 and the outside air is directly increased, and meanwhile, the heat emitted by components in the neck hanging fan can be rapidly radiated to the outside through the larger contact surface area through smooth circulation of the air, so that heat accumulation in the main body structure 20 is avoided; through setting up ventilation hole 30, this application can use less material to whole product is lighter and thinner, avoids the product overweight and brings unnecessary heavy burden sense for the user's neck.

The inner housing 211 and the outer housing 212 are not limited to the structure of inner and outer covers, but may be integrated or formed by disassembling the bottom cover plate and the top cover plate in other process flows, and are not limited herein.

In some embodiments, as shown in fig. 4, the necktie fan may further include a control circuit board 40, a battery 50, and wires, which are described below in connection with various setup applications for ease of illustration:

in application example 1, as shown in fig. 5, the accommodating space 200 is used for installing the fan 10, the first bridge 221 is formed with a first air duct therein, and the air outlet 202 is formed on the inner side, the upper side and/or the lower side of the first bridge 221, and the second bridge 222 is formed with a second air duct therein, and/or the air outlet 202 is formed on the upper side. In this way, the close face can be quickly blown and radiated by the first bridge 221, and the air flow of the vent hole 30 can be further promoted by providing the air outlet 202 also at the position of the vent hole 30.

In application example 2, not shown in the drawings, the accommodating space 200 is used for installing the fan 10, the first air channel is formed in the first bridge 221, the air outlet 202 is formed on the inner side, the upper side and/or the lower side of the first bridge 221, the control circuit board 40, the battery 50 and the wires electrically connected with the battery 50 are installed in the second bridge 222, and the ventilation holes 30 are added on the main structure 20, so that the contact surface area between the main structure 20 and the external air is directly increased, and meanwhile, the heat dissipated by the control circuit board 40, the battery 50 and the battery 50 inside the neck hanging fan can be rapidly dissipated to the outside through the larger contact surface area, so as to avoid heat accumulation inside the main structure 20.

In application example 3, not shown, the accommodating space 200 is used for installing the fan 10, the control circuit board 40, the battery 50 and the wires electrically connected with the battery 50, the first bridge 221 is formed with a first air duct therein, and the air outlet 202 is formed at the inner side, the upper side and/or the lower side of the first bridge 221.

In application example 4, not shown in the drawings, the first bridge 221 and/or the second bridge 222 are used for installing one or more fans 10, the accommodating space 200 is used for installing the battery 50, the control circuit board 40 and the wires electrically connected with the battery 50, and by this application example, a plurality of small-sized fans arranged in a plurality of rows can be arranged to dissipate heat, so as to ensure a more uniform blowing effect and avoid concentrated blowing.

In application example 5, as shown in fig. 4 and 7, the housing space 200 is used for mounting the fan 10, the first bridge 221 is communicated with the second bridge 222 at an end far from the housing space 200, the second bridge 222 is used for mounting the semiconductor refrigeration module 60 therein, the fan 10 guides the air sucked from the air inlet 201 into the second bridge 222 for cooling/heating by the semiconductor refrigeration module 60, and guides the cooled/heated air into the air duct of the first bridge 221 via the communicated end, and then blows the cooled/heated air out of the air outlet 202 of the first bridge 221. By the application example, the cooling/heating air duct with a longer path and longer time can be provided for cooling/heating the air, so that the technical problem of poor refrigerating effect caused by low power conversion of the semiconductor refrigerating module 60 is avoided, and the blown air is ensured to be the air meeting the temperature requirement.

In application example 6, the housing space 200 is used for installing the fan 10, the first bridge 221 is formed with a first air duct and an air outlet 202 is formed at the inner side and/or upper side of the first bridge 221, and the second bridge 222 is used for disposing the negative ion generating device 70 therein, as shown in fig. 5. By this application example, the negative ions released from the negative ion generating device 70 can enter the neck position through the vent hole 30, and are prevented from being driven away by the wind of the fan, so that the use effect and the concentration of the negative ions are ensured.

In this embodiment, as shown in fig. 8, the fan 10 of the present application includes a centrifugal fan 101, where the centrifugal fan 101 includes a motor 102, fan blades 103, and a first air inlet area 104 and a second air inlet area 105 formed on two end surfaces of the fan blades 103 and far away from each other, and the main body structure 20 is formed with an air inlet 201 communicating with the first air inlet area 104 and the second air inlet area 105.

Further, as shown in fig. 9, the fan 10 includes a centrifugal fan 101, where the centrifugal fan 101 includes a motor 102, fan blades 103, and a first air inlet area 104 and a second air inlet area 105 formed on two end surfaces of the fan blades 103 and far from each other, and in a direction connecting the outer side surface 204 and the inner side surface 203, a maximum width WW of an air duct formed in a corresponding bridge body of the main body structure 20 is smaller than or equal to a fan blade thickness WF of a distance between the two end surfaces of the fan blades 103, preferably, the maximum width WW is smaller than the fan blade thickness WF, so as to boost air entering the bridge body over a width of the air duct.

It should be noted that, as shown in fig. 4, in the embodiment of the present application, the battery 50 may be further disposed on a side of the vent hole 30 away from the fan 10, and the control circuit board 40 is disposed in the second bridge 222 and between the battery 50 and the fan 10, so that the fan 10, the control circuit board 40 and the battery 50 are separated and disposed around the circumference of the vent hole 30, and the vent hole 30 may be used to dissipate heat of flowing wind of the main structure 20.

Example two

Referring to fig. 10 to 12 in conjunction with fig. 3 to 9, fig. 10 is a schematic perspective view of another embodiment of the neckline fan of the present application, fig. 11 is a schematic internal housing structure of the neckline fan of fig. 10, and fig. 12 is a schematic external housing structure of the neckline fan of fig. 10.

In this embodiment, the body structure 20 may include an inner housing 211 and an outer housing 212. The inner housing 211 includes an inner housing body 2110, a first inner housing 2111 and a second inner housing 2112 connected to the inner housing body 2110; the outer case 212 includes a case main body 2120, and first and second cases 2121 and 2122 connected to the case main body 2120; wherein the inner housing body 2110 and the outer housing body 2120 are covered to form the accommodating space 200, the first inner housing 2111 and the first outer housing 2121 are covered to form the first bridge 221, the second inner housing 2112 and the second outer housing 2122 are covered to form the second bridge 222, and the first bridge 221 and the second bridge 222 are matched to form one or more ventilation holes 30.

The difference from the above embodiment is that: the inner housing 211 of the present embodiment may further include a third inner housing 2113 and a fourth inner housing 2114 connected to the inner housing body 2110; the outer housing 212 may further include a third housing 2123 and a fourth housing 2124 coupled to the housing body 2120; wherein, the third inner housing 2113 and the third outer housing 2123 are covered to form a third bridge 223, the fourth inner housing 2114 and the fourth outer housing 2124 are covered to form a fourth bridge 224, the first bridge 221 and the third bridge 223 are respectively located at different sides of the accommodating space 200, and the second bridge 222 and the fourth bridge 224 are respectively located at different sides of the accommodating space 200.

Correspondingly, according to the embodiment, different application examples can be set according to different bridge numbers:

in application example 7, the housing space 200 is used for mounting the fan 10, and air ducts are formed in the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224, and air outlets 202 are formed on the inner side and/or the upper side of the corresponding bridges.

In application example 8, the accommodating space 200 is used for installing the fan 10, the air ducts are correspondingly formed in the first bridge 221 and the third bridge 223, the air outlets 202 are formed on the inner side and/or the upper side of the corresponding bridge, and the second bridge 222 and/or the fourth bridge 224 are used for installing the battery 50 and/or the control circuit board 40.

It should be noted that, in the present application, when the battery 50 is mounted in the bridge body, a lithium battery adapted to the shape of the bridge body, such as a strip-shaped battery of model 18650, may be used, and when the battery 50 is mounted in the accommodating space 200, a polyhedral battery adapted to the accommodating space, such as a polymer battery, is preferably used.

In application example 9, the housing space 200 is used for mounting the fan 10, the first bridge 221 and the third bridge 223 are respectively formed with an air duct and the air outlet 202 is formed at the inner side and/or the upper side of the corresponding bridge, the first bridge 221 is communicated with the second bridge 222 at the end far away from the housing space 200, the third bridge 223 is communicated with the fourth bridge 224 at the end far away from the housing space 200, the second bridge 222 is used for mounting the semiconductor refrigeration module 60, the fan 10 guides the air sucked from the air inlet 201 into the second bridge 222 for cooling/heating by the semiconductor refrigeration module 60, guides the cooled/heated air into the air duct of the first bridge 221 through the communicated end, blows the cooled/heated air out of the air outlet 202 of the first bridge 221, the fourth bridge 224 is used for mounting the semiconductor refrigeration module 60, the fan 10 guides the air sucked from the air inlet 201 into the fourth bridge 224 for cooling/heating by the semiconductor refrigeration module 60, and guides the cooled/heated air into the air outlet 202 through the third bridge 223 through the communicated end.

In application example 10, the housing space 200 is used for mounting the fan 10, the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224 are mutually communicated to form a cooling circuit, at least three of the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224 are used for mounting the semiconductor refrigeration module 60, the fan 10 guides the air sucked from the air inlet 201 into the cooling circuit for cooling/heating by the semiconductor refrigeration module 60, and blows the cooled/heated air out through the air outlet 202, wherein the air outlet 202 is arranged in the last bridge of the cooling circuit and/or on an air outlet duct arranged above the housing space 200 and isolated from the housing space 200.

In application example 11, the accommodating space 200 is used for installing the fan 10, air channels are correspondingly formed in the first bridge 221 and the third bridge 223, air outlets 202 are formed on the inner side and/or the upper side of the corresponding bridge, and the negative ion generating device 70 is arranged in the second bridge 222 and/or the fourth bridge 224.

In the present application, by the application examples 9 and 10, the long air duct is formed by the cooperation of the plurality of bridges, the cooling effect of the semiconductor cooling module 60 on the air can be increased, and the cooled air is blown out from the air outlet 202.

It should be noted that, in the above embodiment, the air outlet 202 is not limited to or fixed to the setting position of one or more figures, and the air outlet 202 may be opened or closed according to the needs of different application examples, which may be understood in conjunction with different application examples.

Referring to fig. 5 again, the main body structure 20 of the present embodiment includes a first neck hanging body 205 and a second neck hanging body 206 respectively hung on two sides of a user's neck, wherein the first neck hanging body 205 and the second neck hanging body 206 are hinged to each other, and a ventilation hole 30 is formed on the first neck hanging body 205 and the second neck hanging body 206; specifically, as shown in fig. 7, the first neck hanging body 205 and the second neck hanging body 206 can be hinged to each other by a hinge mechanism 29.

In the fourth embodiment, as shown in fig. 13, the main body structure 20 includes a first neck hanging body 271, a second neck hanging body 272, and a middle portion 273 located at the rear neck, which are respectively hung at two sides of the user's neck, and the first neck hanging body 271 and the second neck hanging body 272 can be hinged with the middle portion 273 by a hinge mechanism 29, respectively, wherein the ventilation hole 30 is formed on the first neck hanging body 271, the second neck hanging body 272, and/or the middle portion 273. In the present embodiment, the hinge mechanism 29 may be a universal ball, a hinge, or the like, and is not limited thereto.

In a fifth embodiment, as shown in fig. 14, the neck fan may further include a decoration 91, where the decoration 91 is a cover plate with a mesh hole 910 and is used for covering the ventilation hole 30, or the decoration 91 is hinged with the main body structure 20 to adjust a ventilation area exposing the ventilation hole 30.

Of course, when the decoration member 91 is hinged to the main body structure 20, the ventilation hole 30 can be completely covered when the semiconductor refrigeration module 60 is provided and used in winter, and the heat preservation of the neck and face by the wind heated by the semiconductor refrigeration module 60 is ensured, so that the external cold wind is prevented from blowing into the neck from the ventilation hole 30, and the use effect is ensured.

In the sixth embodiment, as shown in fig. 15, the neck fan may further include a vortex-like tongue structure 24, and the vortex-like tongue structure 24 is at least partially disposed around the fan 10, wherein the vortex-like tongue structure 24 is formed in the accommodating space 200.

In other embodiments, the simulated tongue structure 24 may be structurally integrated with one or more of the bridges. Specifically, as shown in fig. 16, a bridge cover plate 300 surrounding the ventilation holes 30 is further formed on the inner housing 211, and the vortex-like tongue structure 24 may be integrally formed with the bridge cover plate 300 to achieve functional reuse, so as to reduce the use of plate removal.

In some embodiments, the neck fan may further include a volute-like structure 25, and the volute-like structure 25 may be arranged in an archimedes spiral involute around the fan 10. In other embodiments, the scroll-like structure 25 may be integrated with the inner housing 211 and/or the outer housing 212, for example, by changing the structure of the scroll-like structure 25 and/or the outer housing 212 for arranging the scroll of the fan 10 to be consistent with the overall shape of the scroll-like structure 25, it is not necessary to separately arrange the scroll-like structure 25, so that the structure is simpler and the weight of the product is reduced.

With continued reference to fig. 16, the neck fan may further include an air duct partition 26, where the air duct partition 26 is correspondingly formed in the air duct of one or more bridges, so as to adjust the air volume or the air pressure according to the distance between the air outlet 202 and the fan 10.

In this embodiment, the cross-sectional area of the air duct formed by the air duct partition 26 may be gradually reduced along the blowing direction of the air, so as to control the wind pressure difference of each air outlet position to be within a preset range, and avoid too small wind pressure of a part of the air outlet 202 far from the fan 10.

Referring to fig. 3 to 9 again in combination with the above embodiment of the neck fan, the present application further provides an air duct device configured for the neck fan according to any one of the above embodiments, where the air duct device includes a main body structure 20, the main body structure 20 is provided with an air inlet 201 and an air outlet 202, and the main body structure 20 is further formed with one or more ventilation holes 30 for ventilation.

The main structure 20 includes an inner side 203 adjacent to the neck and an outer side 204 far away from the neck, and the ventilation holes 30 penetrate through the inner side 203 and the outer side 204 to allow air of the outer side 204 to circulate with air adjacent to the neck, where the ventilation holes 30 are one and extend along the length direction of the main structure 20, or the ventilation holes 30 are two and are respectively located at a first end 205 and a second end 206 of the main structure 20, or the ventilation holes 30 are three and are respectively located at the first end 205, the second end 206 and a middle portion corresponding to the rear neck of the main structure 20, or the ventilation holes 30 are four or more and are arranged at an array interval along the length direction of the main structure 20.

In this embodiment, the main body structure 20 includes an inner housing 211 and an outer housing 212: the inner housing 211 includes an inner housing body 2110, a first inner housing 2111 and a second inner housing 2112 connected to the inner housing body 2110; the outer case 212 includes a case main body 2120, and first and second cases 2121 and 2122 connected to the case main body 2120; the inner housing body 2110 and the outer housing body 2120 are covered to form the accommodating space 200, the first inner housing 2111 and the first outer housing 2121 are covered to form the first bridge 221, the second inner housing 2112 and the second outer housing 2122 are covered to form the second bridge 222, and the first bridge 221 and the second bridge 222 are matched to form one or more ventilation holes 30.

In this embodiment, the following multiple application examples may also be included:

the accommodating space 200 is used for installing the fan 10, a first air duct is formed in the first bridge 221, an air outlet 202 is formed on the inner side, the upper side and/or the lower side of the first bridge 221, and an air outlet 202 is formed on the inner side and/or the upper side of the second air duct is formed in the second bridge 222; or (b)

The accommodating space 200 is used for installing the fan 10, a first air duct is formed in the first bridge 221, an air outlet 202 is formed at the inner side, the upper side and/or the lower side of the first bridge 221, and the second bridge 222 is used for installing the control circuit board 40, the battery 50 and wires electrically connected with the battery 50; or (b)

The accommodating space 200 is used for installing the fan 10, the control circuit board 40, the battery 50 and wires electrically connected with the battery 50, a first air duct is formed in the first bridge 221, and an air outlet 202 is formed at the inner side, the upper side and/or the lower side of the first bridge 221; or (b)

The first bridge 221 and/or the second bridge 222 are used for installing one or more fans 10 therein, and the accommodating space 200 is used for installing the battery 50, the control circuit board 40 and wires electrically connected with the battery 50; or (b)

The accommodating space 200 is used for installing the fan 10, the first bridge 221 is communicated with the second bridge 222 at one end far away from the accommodating space 200, the second bridge 222 is internally used for installing the semiconductor refrigeration module 60, the fan 10 guides the wind sucked from the air inlet 201 into the second bridge 222 for cooling/heating through the semiconductor refrigeration module 60, the cooled/heated wind is guided into the air channel of the first bridge 221 through one communicated end, and the cooled/heated wind is blown out from the air outlet 202 of the first bridge 221; or (b)

The accommodating space 200 is used for installing the fan 10, the first bridge 221 is formed with a first air duct, the inner side and/or the upper side of the first bridge 221 is formed with an air outlet 202, and the second bridge 222 is internally provided with the anion generating device 70.

Referring to fig. 10-12 in conjunction with fig. 3-9, the present application further provides an air duct device configured to be used with the neck fan of any of the above embodiments, where the air duct device includes a main body structure 20, and the main body structure 20 may include an inner housing 211 and an outer housing 212: the inner housing 211 includes an inner housing body 2110, a first inner housing 2111, a second inner housing 2112, a third inner housing 2113, and a fourth inner housing 2114 connected to the inner housing body 2110; the outer case 212 includes a case main body 2120, a first case 2121, a second case 2122, a third case 2123, and a fourth case 2124 connected to the case main body 2120; wherein the inner housing body 2110 and the outer housing body 2120 are covered to form the accommodating space 200, the first inner housing 2111 and the first outer housing 2121 are covered to form the first bridge 221, the second inner housing 2112 and the second outer housing 2122 are covered to form the second bridge 222, and the first bridge 221 and the second bridge 222 are matched to form one or more ventilation holes 30; the third inner case 2113 and the third outer case 2123 are covered to form a third bridge 223, the fourth inner case 2114 and the fourth outer case 2124 are covered to form a fourth bridge 224, the first bridge 221 and the third bridge 223 are located at different sides of the accommodating space 200, respectively, and the second bridge 222 and the fourth bridge 224 are located at different sides of the accommodating space 200, respectively.

The air duct device of the present embodiment may include the following multiple application examples:

the accommodating space 200 of the present embodiment is used for installing the fan 10, and air channels are formed in the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224 correspondingly, and air outlets 202 are formed on the inner side and/or the upper side of the corresponding bridges; or (b)

The accommodating space 200 is used for installing the fan 10, air channels are correspondingly formed in the first bridge 221 and the third bridge 223, air outlets 202 are formed on the inner side and/or the upper side of the corresponding bridge, and the second bridge 222 and/or the fourth bridge 224 are used for installing the battery 50 and/or the control circuit board 40; or (b)

The accommodating space 200 is used for installing the fan 10, the first bridge 221 and the third bridge 223 are respectively provided with an air channel correspondingly, an air outlet 202 is formed at the inner side and/or the upper side of the corresponding bridge, the first bridge 221 is communicated with the second bridge 222 at one end far away from the accommodating space 200, the third bridge 223 is communicated with the fourth bridge 224 at one end far away from the accommodating space 200, the second bridge 222 is used for installing the semiconductor refrigeration module 60, the fan 10 guides the air sucked from the air inlet 201 into the second bridge 222 for cooling/heating through the semiconductor refrigeration module 60, guides the cooled/heated air into the air channel of the first bridge 221 through the communicated one end, and blows the cooled/heated air out of the air outlet 202 of the first bridge 221, the fourth bridge 224 is used for installing the semiconductor refrigeration module 60, the fan 10 guides the air sucked from the air inlet 201 into the fourth bridge 224 for cooling/heating through the semiconductor refrigeration module 60, and guides the cooled/heated air into the air channel of the third bridge 223 through the communicated one end, and blows the cooled/heated air out of the air channel 223 from the third bridge 223; or (b)

The accommodating space 200 is used for installing the fan 10, the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224 are mutually communicated to form a cooling circuit, at least three of the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224 are internally provided with the semiconductor refrigeration module 60, the fan 10 guides the air sucked from the air inlet 201 into the cooling circuit for cooling/heating through the semiconductor refrigeration module 60 and blows the cooled/heated air out through the air outlet 202, wherein the air outlet 202 is arranged in the last bridge of the cooling circuit and/or on an air outlet duct which is arranged above the accommodating space 200 and is isolated from the accommodating space 200; or (b)

The accommodating space 200 is used for installing the fan 10, air channels are correspondingly formed in the first bridge 221 and the third bridge 223, air outlets 202 are formed on the inner side and/or the upper side of the corresponding bridge, and the negative ion generating device 70 is arranged in the second bridge 222 and/or the fourth bridge 224.

Referring to fig. 5 again, the main body structure 20 of the air duct device of the present embodiment includes a first neck hanging body 205 and a second neck hanging body 206 respectively hung on two sides of a user's neck, the first neck hanging body 205 and the second neck hanging body 206 are hinged to each other, wherein the ventilation hole 30 is formed on the first neck hanging body 205 and the second neck hanging body 206; specifically, as shown in fig. 7, the first neck hanging body 205 and the second neck hanging body 206 can be hinged to each other by a hinge mechanism 29.

As shown in fig. 13, the main structure 20 of the air duct device includes a first neck hanging body 271, a second neck hanging body 272, and a middle portion 273 located at the rear neck, which are respectively hung at both sides of the user's neck, and the first neck hanging body 271 and the second neck hanging body 272 may be respectively hinged with the middle portion 273 by a hinge mechanism 29, wherein a ventilation hole 30 is formed on the first neck hanging body 271, the second neck hanging body 272, and/or the middle portion 273. In the present embodiment, the hinge mechanism 29 may be a universal ball, a hinge, or the like, and is not limited thereto.

As shown in fig. 14, the air duct device may further include a decoration 91, where the decoration 91 is a cover plate having a mesh hole 910 and is used to cover the ventilation hole 30, or the decoration 91 is hinged with the main body structure 20 to adjust a ventilation area exposing the ventilation hole 30.

As shown in fig. 15, the air duct device may further include a vortex-like tongue structure 24, where the vortex-like tongue structure 24 is at least partially disposed around the fan 10, and the vortex-like tongue structure 24 is formed in the accommodating space 200.

In some embodiments, the air duct device may also simulate a volute structure 25, and the volute structure 25 may be arranged in an archimedes spiral involute around the fan 10. In other embodiments, the scroll-like structure 25 may be integrated with the inner housing 211 and/or the outer housing 212, for example, by changing the structure of the scroll-like structure 25 and/or the outer housing 212 for arranging the scroll of the fan 10 to be consistent with the overall shape of the scroll-like structure 25, it is not necessary to separately arrange the scroll-like structure 25, so that the structure is simpler and the weight of the product is reduced.

With continued reference to fig. 16, the air duct device may further include an air duct partition 26, where the air duct partition 26 is correspondingly formed in the air duct of one or more bridges, so as to adjust the air volume or the air pressure according to the distance between the air outlet 202 and the fan 10.

In a ninth embodiment, please refer to fig. 17 to 20, fig. 17 is a schematic perspective view of another embodiment of the neckline fan of the present application, fig. 18 is a partially exploded view of one view of the neckline fan of fig. 17, fig. 19 is a partially exploded view of another view of the neckline fan of fig. 17, and fig. 20 is a partially exploded view of another view of the neckline fan of fig. 17.

As described above, the neck hanging fan of the present application may include a fan and a main body structure 20, the main body structure 20 is used for providing an air inlet 201, a fan and an air outlet 202, the main body structure 20 is further formed with one or more ventilation holes 30 for air circulation, wherein the fan is used for sucking air through the air inlet 201 and blowing out the air outlet 202, the ventilation holes 30 are used for allowing air adjacent to the neck to flow freely, the main body structure 20 of the present embodiment includes an inner side 203 adjacent to the neck and an outer side 204 far away from the neck, and the ventilation holes 30 penetrate through the inner side 203 and the outer side 204 to allow air of the outer side 204 to circulate with air adjacent to the neck.

But different from other embodiments, the fan in this embodiment includes a booster centrifugal fan, where the booster centrifugal fan includes a motor 81 and fan blades 80, where the fan blades 80 are three-way blades that are at least partially twisted, and the twisted three-way blades are integrally similar to concave-convex structures of petals and belong to one of the diagonal flow blades, and are not integrally on the same plane or the same arc surface, so as to promote the air volume and air pressure of the air flow in the neck hanging fan through the twisted structure of the three-way blades, and ensure that the blowing speed of each air outlet 202 is more uniform by using the three-way blades, promote the rationality of the air pressure distribution, and reduce the loss of the air flow.

Specifically, the fan blade 80 includes a mounting base plate 801 and a ternary blade 800 disposed on the mounting base plate 801, where the ternary blade 800 may be fastened to the mounting base plate 801 by a fastening, ultrasonic, or integral molding method. Preferably, the ternary blade 800 and the mounting base plate 801 may be made of metal materials under the condition of allowing cost, so as to improve the qualification rate of the finished product. The mounting base plate 801 is formed with a mounting hole for mounting the motor 81, differently from the other side where the three-way blade 800 is provided.

In some embodiments, a wind guide cone may be formed on the mounting base plate 801 at a side where the three-way blade 800 is disposed, so as to further raise wind pressure and further increase a wind supply distance.

Further, the booster centrifugal fan may further include a guide cover 82, where the guide cover 82 is disposed opposite to the fan blade 80 and corresponds to the air inlet 201, the guide cover 82 may include a cover plate 820 and an arc-shaped cover body 821, the arc-shaped cover body 821 extends from the cover plate 820, and an inner surface of the arc-shaped cover body 821 corresponding to the ternary blade 800 is adapted to an outer contour of the ternary blade 800 and is disposed at intervals, so as to raise wind pressure. In a preferred embodiment, the arc-shaped cover 821 is disposed against the ternary blade 800 to reduce turbulence, and further, the ternary blade 800 may be connected to the arc-shaped cover 821 by a fastening, ultrasonic or integral molding manner to form a fully enclosed booster centrifugal fan.

In addition, as shown in fig. 19 and 20, in any embodiment of the present application, the air outlet 202 may be disposed on the bridge deck 300 disposed around the vent hole 30, preferably, the air outlet 202 on the bridge deck 300 may be a slot air outlet, and in other embodiments, a plurality of air outlet holes may be disposed at intervals. It should be noted that, the air outlet 202 on the bridge cover plate 300 may be inclined toward the neck, so as to blow air toward the neck, and further enhance the ventilation effect of the ventilation hole 30 on the neck.

In particular, in the present embodiment, compared with the conventional centrifugal fan shown in fig. 3 to 16, the radial dimension of the fan blade 80 and the thickness of the rotating shaft reach the centimeter level difference, especially in the embodiment using the air guide cover 82, the overall dimension is larger, and the overall dimension is increased, so that the steamer-type enclosed space formed by the main structure and the hot feeling caused by the steamer-type enclosed space are further aggravated, and the size is large, and the steamer-type enclosed space is not suitable for being hung on the neck, therefore, the conventional commercially available neck hanging fan does not have the booster centrifugal fan using the ternary blade 800 of the present embodiment, but the booster centrifugal fan using the vent hole 30 and the booster centrifugal fan of the ternary blade 800 can be organically combined, so that the size increased by the booster centrifugal fan of the ternary blade 800 can be removed, the overall dimension is lighter and the overall dimension is more light, and the steamer-type enclosed space caused by the large blade and the hot feeling caused by the large blade are avoided, thereby ensuring the use experience of users and marketization of products.

It should be noted that, after the booster centrifugal fan with the ternary blade 800 is adopted, the air inlet 201 of the neck hanging fan of the present application may be set in a single-side manner, for example, may be set on the outer side 204 far away from the neck, see fig. 21, and fig. 21 is a schematic structural diagram of another embodiment of the neck hanging fan of the present application, where the fan inside the neck hanging fan is displayed outside, and meanwhile, a plurality of ventilation holes 30 and a structure including a first bridge 221, a second bridge 222, a third bridge 223 and a fourth bridge 224 are also displayed.

Of course, in other embodiments, the fan may be disposed on the inner side 203, the top surface or the bottom surface of the main body structure 20, as shown in fig. 22 disposed on the inner side 203, and fig. 22 is a schematic structural view of another embodiment of the neckline fan of the present application, where the fan inside the neckline fan is shown on the outside, and a plurality of ventilation holes 30 and one of the structures including the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224 are also shown.

It should be noted that, in the prior art, because the twisted structure of the ternary blade results in complex manufacturing process, multiplied number of dies and complex assembly process, therefore, the production cost and the product reject ratio are very high, therefore, the ternary blade is generally used in the technical fields of aerospace and the like, but rarely used in the fan field, especially in the portable fan field, but not in the neck fan field.

In the tenth embodiment, referring to fig. 23, fig. 23 is a partially exploded view of another embodiment of the neckline fan according to the present application. The same parts of the neck hanging fan as those of other embodiments are not described in detail in the range that those skilled in the art easily combine to understand, where the difference in this embodiment is that the fan includes a radial single-side centrifugal fan 90, and the radial single-side centrifugal fan 90 includes a mounting base 901 and a radial single-side fan blade 900 connected to the mounting base 901, where the mounting base 901 protrudes outward from one side of the air inlet to form an air guiding platform, so as to promote wind pressure.

Accordingly, after the radial single-sided centrifugal fan 90 is adopted, the air inlet 201 of the neck hanging fan of the present application may be set in a single-sided manner, for example, may be set on an outer side 204 far away from the neck, an inner side 203 adjacent to the neck, a top surface or a bottom surface, as shown in fig. 24 and fig. 25, fig. 24 is a schematic perspective view of another embodiment of the neck hanging fan of the present application, in which the fan inside the neck hanging fan is displayed outside, and fig. 25 is a schematic perspective view of another embodiment of the neck hanging fan of the present application, in which the fan inside the neck hanging fan is displayed outside.

It should be noted that, the radial single-sided centrifugal fan 90 shown in fig. 23 to 25 is different from the fan blade 103 of the radial double-sided centrifugal fan shown in fig. 1 to 16 in that the fan blade 103 may use two opposite sides for air intake, and the radial single-sided centrifugal fan 90 may use one side for air intake, which may be set according to different application scenarios, and is not limited herein.

Referring to fig. 26 to 30, fig. 26 is a partially exploded view of another embodiment of the neckline fan of the present application, fig. 27 is a partially exploded view of another view of the neckline fan of fig. 26, fig. 28 is a partially exploded view of another view of the neckline fan of fig. 26, wherein a control circuit board disposed on the other side is shown in the vent hole, fig. 29 is a schematic perspective view of another embodiment of the neckline fan of the present application, and fig. 30 is a schematic perspective view of another embodiment of the neckline fan of the present application.

The fan according to the present embodiment includes a booster centrifugal fan, which includes a motor (not labeled) and a fan blade 93, and is different from the other embodiments in that the fan blade 93 is a binary blade, the binary blade according to the present embodiment may be an oblique flow binary blade, specifically, the fan blade 93 includes a mounting base plate 931 and a binary blade 930 disposed on the mounting base plate 931, where the binary blade 930 may be fixed to the mounting base plate 931 by a fastening, ultrasonic or integral molding manner. Preferably, the binary blade 930 and the mounting plate 931 may be made of metal materials, as the cost allows, to improve the yield of the finished product.

It should be noted that, in this embodiment, the diagonal flow type binary blade is adopted, unlike the ternary blade, since the binary blade is in a sheet shape, that is, on the same plane or arc surface, and does not generate a portion extending from a certain twist, specifically, as shown in fig. 27, the binary blade 930 may be integrally perpendicular to the plane where the mounting base plate 931 is located, so that the difficulty of the mold can be reduced, the number of the molds can be reduced, and the productivity can be greatly improved, so that the mass production can be further reduced, and the production cost and the labor cost can be reduced.

As shown in fig. 26 and 27, a wind guide cone may be further formed at a middle portion of a side of the installation base 931 facing the wind inlet to raise wind pressure.

Further, the booster centrifugal fan may further include a guide cover 94, where the guide cover 94 is disposed opposite to the fan blade 93 and corresponds to the air inlet 201, the guide cover 94 may include a cover plate 940 and an arc-shaped cover 941, the arc-shaped cover 941 extends from the cover plate 940, and an inner surface of the arc-shaped cover 941 corresponding to the binary blade 930 is adapted to an outer contour of the binary blade 930, so as to boost air pressure. In a preferred embodiment, the arc-shaped cover 941 is disposed against the binary blade 930 to reduce turbulence, and further, the binary blade 930 may be connected to the arc-shaped cover 941 by a fastening, ultrasonic or integral molding manner to form a fully-closed booster centrifugal fan.

It should be noted that, after the booster centrifugal fan with the binary blades 930 is adopted, the air inlet 201 of the neck hanging fan of the present application may be set in a single-side manner, for example, may be set on the outer side 204 far away from the neck, see fig. 29, and fig. 29 is a schematic perspective view of another embodiment of the neck hanging fan of the present application, where the fan inside the neck hanging fan is displayed outside, and meanwhile, a plurality of ventilation holes 30 and a structure including the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224 are also displayed.

Of course, in other embodiments, the fan may be disposed on the inner side 203, the top surface or the bottom surface of the main body structure 20, as shown in fig. 30, where fig. 30 is a schematic perspective view of another embodiment of the neckline fan according to the present application, and the fan inside the neckline fan is shown on the outside, and meanwhile, a plurality of ventilation holes 30 and a structure including the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224 are also shown.

In addition, as shown in fig. 26, the battery mounting seat 501 can be further arranged in the main body structure 20 and used for fixing the battery 50 to avoid shaking, preferably, the battery mounting seat 501 is made of soft materials such as silica gel, and the battery 50 can be attached in the main body structure 20 by foam or double-sided adhesive, so that the battery 50 is prevented from shaking loose during walking use, and after-sales problems are reduced.

As shown in fig. 4, 16, 18, 19, 23, 26, etc., the present application may form a bridge plate 300 around the vent hole 30 on the inner housing 211, form a bridge plate 300 around the vent hole 30 on the outer housing 212, and form a part of the bridge plate 300 on the inner housing 211 and another part of the bridge plate 300 on the outer housing 212 at the same time, so that after the inner housing 211 and the outer housing 212 are covered, the part of the bridge plate 300 formed on the inner housing 211 abuts against the other part of the bridge plate 300 formed on the outer housing 212 and the vent hole 30 is formed.

In some embodiments, after the inner housing 211 and the outer housing 212 are covered, a part of the bridge cover plate 300 formed on the inner housing 211 is not abutted against another part of the bridge cover plate 300 formed on the outer housing 212, but a slit-shaped air outlet 202 can be formed to enhance the ventilation effect of the ventilation hole 30, and at the same time, the heat dissipation effect of the battery 50 and/or the control circuit board 40 disposed adjacent to the ventilation hole 30 can be improved.

The foregoing description of the preferred embodiment of the present invention is provided for the purpose of illustration only, and is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims

1. A neck hanging fan, characterized in that the neck hanging fan comprises:

2. The neck hanging fan as claimed in claim 1, wherein the main structure comprises an inner side surface adjacent to the neck and an outer side surface far away from the neck, the ventilation holes penetrate through the inner side surface and the outer side surface to allow air of the outer side surface to circulate with air adjacent to the neck, wherein the ventilation holes are one and are arranged in an extending manner along the length direction of the main structure, or the ventilation holes are two and are respectively arranged at the first end and the second end of the main structure, or the ventilation holes are three and are respectively arranged at the first end, the second end and the middle part corresponding to the rear neck of the main structure, or the ventilation holes are four or more and are arranged at an array interval along the length direction of the main structure.

3. The neck fan as claimed in claim 2, wherein the main structure includes:

an inner case including an inner case body, a first inner case and a second inner case connected with the inner case body;

the shell comprises a shell main body, a first shell and a second shell, wherein the first shell and the second shell are connected with the shell main body;

the inner shell body and the outer shell body are covered to form an accommodating space, the first inner shell and the first outer shell are covered to form a first bridge body, the second inner shell and the second outer shell are covered to form a second bridge body, and the first bridge body and the second bridge body are matched to form one or more ventilation holes.

4. The necktie fan of claim 3, further comprising a control circuit board, a battery, and wires:

the accommodating space is used for installing the fan, a first air duct is formed in the first bridge body, the air outlet is formed on the inner side, the upper side and/or the lower side of the first bridge body, and the air outlet is formed on the inner side and/or the upper side of the second air duct in the second bridge body; or (b)

The accommodating space is used for installing the fan, a first air duct is formed in the first bridge body, the air outlet is formed on the inner side, the upper side and/or the lower side of the first bridge body, and the second bridge body is used for installing a control circuit board, a battery and a wire electrically connected with the battery; or (b)

The accommodating space is used for installing the fan, the control circuit board, the battery and a wire electrically connected with the battery, a first air duct is formed in the first bridge body, and the air outlet is formed on the inner side, the upper side and/or the lower side of the first bridge body; or (b)

The first bridge body and/or the second bridge body are/is used for installing one or more fans, and the accommodating space is used for installing a battery, a control circuit board and a wire electrically connected with the battery; or (b)

The accommodating space is used for installing the fan, the first bridge body is communicated with the second bridge body at one end far away from the accommodating space, the second bridge body is internally provided with a semiconductor refrigerating module, the fan guides the air sucked from the air inlet into the second bridge body for cooling/heating through the semiconductor refrigerating module, guides the cooled/heated air into an air duct of the first bridge body through one communicated end, and blows the cooled/heated air out of an air outlet of the first bridge body; or (b)

The accommodating space is used for installing the fan, the first bridge body is provided with a first air duct, the inner side and/or the upper side of the first bridge body is provided with the air outlet, and the second bridge body is internally provided with the anion generating device.

5. A neck fan as claimed in claim 3, wherein:

the inner shell further comprises a third inner shell and a fourth inner shell which are connected with the inner shell main body;

the outer shell further comprises a third shell and a fourth shell which are connected with the outer shell main body;

the third inner shell and the third outer shell cover form a third bridge body, the fourth inner shell and the fourth outer shell cover form a fourth bridge body, the first bridge body and the third bridge body are respectively located on different sides of the containing space, and the second bridge body and the fourth bridge body are respectively located on different sides of the containing space.

6. The neck fan as claimed in claim 5, wherein:

the accommodating space is used for installing the fan, air channels are correspondingly formed in the first bridge body, the second bridge body, the third bridge body and the fourth bridge body, and the air outlets are formed on the inner side and/or the upper side of the corresponding bridge bodies; or (b)

The accommodating space is used for installing the fan, air channels are correspondingly formed in the first bridge body and the third bridge body, the air outlets are formed on the inner sides and/or the upper sides of the corresponding bridge bodies, and the second bridge body and/or the fourth bridge body are used for installing batteries and/or a control circuit board; or (b)

The accommodating space is used for installing the fan, the first bridge body and the third bridge body are respectively provided with an air channel correspondingly, the inner side and/or the upper side of the corresponding bridge body are/is provided with the air outlet, the first bridge body is communicated with the second bridge body at one end far away from the accommodating space, the third bridge body is communicated with the fourth bridge body at one end far away from the accommodating space, the second bridge body is used for installing a semiconductor refrigerating module, the fan guides the air sucked from the air inlet into the second bridge body and is used for cooling/heating through the semiconductor refrigerating module, the cooled/heated air is guided into the air channel of the first bridge body through one end communicated with the air channel, the cooled/heated air is blown out from the air outlet of the first bridge body, the fourth bridge body is used for installing a semiconductor refrigerating module, the fan guides the air sucked from the air inlet into the fourth bridge body and is used for cooling/heating through the semiconductor refrigerating module, and guides the cooled/heated air into the air channel through the third bridge body, and the cooled/heated air channel is blown out from the air channel through the third end communicated with the air channel; or (b)

The accommodating space is used for installing the fan, the first bridge body, the second bridge body, the third bridge body and the fourth bridge body are mutually communicated to form a cooling loop, at least three bridge bodies among the first bridge body, the second bridge body, the third bridge body and the fourth bridge body are internally provided with semiconductor refrigerating modules, the fan guides the air sucked from the air inlet into the cooling loop for cooling/heating through the semiconductor refrigerating modules and blows out the cooled/heated air through an air outlet, and the air outlet is arranged in the last bridge body of the cooling loop and/or on an air outlet duct which is arranged above the accommodating space and is isolated from the accommodating space; or (b)

The accommodating space is used for installing the fan, air channels are correspondingly formed in the first bridge body and the third bridge body, the air outlets are formed in the inner sides and/or the upper sides of the corresponding bridge bodies, and the negative ion generating devices are arranged in the second bridge body and/or the fourth bridge body.

7. The neck fan as claimed in any one of claims 3 to 6, wherein:

the neck hanging fan further comprises a decoration part which is correspondingly matched with the vent hole, wherein the decoration part is a cover plate with a reticular hole and is used for covering the vent hole, or the decoration part is hinged with the main body structure so as to adjust the ventilation area exposing the vent hole; and/or

The neck hanging fan further comprises a vortex-like tongue structure which is at least partially arranged around the fan, wherein the vortex-like tongue structure is formed in the accommodating space, or the vortex-like tongue structure is structurally integrated and reused with one or more bridge bodies; and/or

The neck hanging fan also comprises an air channel baffle plate, wherein the air channel baffle plate is correspondingly formed in the air channel of one or more bridge bodies so as to adjust air quantity or air pressure according to the distance between the air outlet and the fan; and/or

The battery mounting seat is arranged in the main body structure and is used for fixing the battery, and the battery mounting seat is made of soft materials and is attached in the main body structure by foam or double-sided adhesive tape.

8. The neck fan as claimed in any one of claims 1 to 6, wherein:

the main body structure comprises a first neck hanging body and a second neck hanging body which are respectively hung on two sides of a user neck, wherein the first neck hanging body and the second neck hanging body are mutually hinged, and the vent hole is formed in the first neck hanging body and the second neck hanging body; or (b)

The main body structure comprises a first neck hanging body, a second neck hanging body and a middle part positioned on the rear neck, wherein the first neck hanging body and the second neck hanging body are respectively hinged with the middle part, and the ventilation holes are formed in the first neck hanging body, the second neck hanging body and/or the middle part; or (b)

The cross-sectional area of the ventilation channel of the ventilation hole is racetrack circular, undulating or similar to the overall shape of the main body structure.

9. The neck fan as claimed in any one of claims 1 to 6, wherein:

the fan blade comprises a mounting bottom plate and ternary blades arranged on the mounting bottom plate, wherein the ternary blades are fixed on the mounting bottom plate in a clamping, ultrasonic or integrated forming mode;

or the fan blade comprises a mounting bottom plate and a ternary blade arranged on the mounting bottom plate, wherein the ternary blade and the mounting bottom plate are made of metal materials;

or, the fan blade comprises a mounting bottom plate and ternary blades arranged on the mounting bottom plate, and an air guide cone is formed on the mounting bottom plate at one side where the ternary blades are arranged.

10. The neck fan as claimed in claim 9, wherein:

the supercharging centrifugal fan further comprises a guide cover, and the guide cover is arranged opposite to the fan blades and corresponds to the air inlet;

or, the booster centrifugal fan further comprises a guide cover, the guide cover comprises a cover plate and an arc-shaped cover body, the arc-shaped cover body extends from the cover plate to be formed, and the inner surface of the arc-shaped cover body corresponding to the ternary blade is matched with the outer contour of the ternary blade and is arranged at intervals;

Or, the booster centrifugal fan further comprises a guide cover, the guide cover comprises a cover plate and an arc-shaped cover body, the arc-shaped cover body extends from the cover plate to be formed, the arc-shaped cover body is arranged in an abutting mode with the ternary blades, and the ternary blades are connected with the arc-shaped cover body in a clamping, ultrasonic or integrated forming mode to form the fully-closed booster centrifugal fan;

or, an air outlet is formed in the bridge cover plate surrounding the vent holes, wherein the air outlet in the bridge cover plate is a slit type air outlet.