CN218439898U

CN218439898U - Hanging neck fan

Info

Publication number: CN218439898U
Application number: CN202222791476.4U
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: 2023-02-03
Anticipated expiration: 2032-10-21
Also published as: CN115653938A; CN115653941A; CN117847007A; CN218439897U; CN117847008A

Abstract

The utility model provides a hang neck fan, hang neck fan includes fan and major structure, the fan includes pressure boost centrifugal fan, pressure boost centrifugal fan includes the flabellum, the flabellum is the ternary blade of twist form for at least part, with the inside gas flow's of promotion string neck fan amount of wind and wind pressure, major structure is used for setting up the air intake, fan and air outlet, major structure still is formed with one or more ventilation holes that are used for the circulation of air, wherein, the fan is used for inhaling wind via the air intake and blows out from the air outlet, the ventilation hole is used for allowing the air free flow of neighbouring neck, and, structure through adopting the ventilation hole carries out organic combination with ternary blade's pressure boost centrifugal fan, can get rid of the size that increases owing to ternary blade's pressure boost centrifugal fan, whole from the view on light and handy, and avoid the enclosure space of the steamer formula that big blade caused and the searing that causes, ensure user's use experience and the marketization of product.

Description

Hanging neck 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 both hands and realizes high wind pressure and wind volume.

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 for use, and the fan does not need to be held by hands, so that hands can be liberated, and the portable fan is very convenient.

However, after years of use, the inventor of the present application found that all conventional neck hanging fans have a serious product defect, and as the overall neck hanging fan shown in fig. 1 is relatively integrated, since the main structure of the neck hanging fan generally substantially matches the size radius of the fan blade wheel used, the main structure is in an oblong band shape, and in use, the product defect is very prominent: when the main body structure is hung on a neck, the whole body is enclosed into a circle and is in an enclosure shape, and the enclosure-shaped main body structure physically isolates the neck from an external space, so that wind in the external space cannot blow to the neck any more.

This product defect is when the hot summer is used, and is more outstanding, and the user neck is because hot, generally sweat and paste, and the major structure of bounding at this moment has blockked outside space's wind again perfectly, consequently, the heat can't distribute away, the sweat aggravation. Furthermore, under the condition that air is not supplied to the external space for heat dissipation, a closed space similar to a steamer is formed on the neck instead, the neck is further overheated, heat is transferred to the main body structure of the neck hanging fan, and then the heat is reversely transferred to the sensitive neck skin due to the fact that heat dissipation cannot be achieved, so that the moxibustion feeling on local skin is formed, the user experience is very bad, and even if the product is on the market for several years, the product is rarely used in daily life, and users who generally have a hunting mind try to use the product.

In order to solve the problems of steamer type closed space and moxibustion heat sensation, part of the existing products can use a semiconductor refrigeration heat dissipation module to perform stress heat dissipation on skin or use a neck support structure for erection, however, the stress heat dissipation mode is not in line with the use scene of the neck, as the neck is generally a key channel for connecting a body and a head, blood vessels and pulse are densely distributed on the neck, the neck is suddenly frozen in a very short time by the semiconductor refrigeration, and some neck protection physiotherapy equipment heats and massages the neck, so that theoretically, the semiconductor refrigeration can cause certain damage to the blood vessels and the pulse. Furthermore, the refrigeration efficiency of semiconductor refrigeration is low, and generally about 20 seconds of the refrigeration efficiency is similar to the temperature of a human body, so that the technology cannot solve the problems of a steamer type closed space and moxibustion heat sensation, and on the contrary, other more health problems can be caused. In addition, the neck brace structure only slightly separates the main body structure from the neck at a certain position, but the fence-shaped main body structure still entirely encloses the neck of the user, and the technical problem of how the wind in the external space blows to the neck is not solved.

In order to solve the problems of steamer type closed space and moxibustion heat sensation, some existing products adopt a non-integrated neck hanging fan with the structure shown in fig. 2, the neck hanging fan adopts a hose to avoid a fence-shaped main structure, but the product has a worse defect that firstly, hair is easily curled after fan blades are exposed, secondly, because the structural strength of the hose is insufficient, even if a metal shaping piece is added in the hose, the hose still easily shakes, particularly when the hose is used outdoors, the hose is very easy to shake and deviates from the direction needing blowing, and because of the defect, the product shown in fig. 2 is not easy to popularize, the market groups are few, and the market competitiveness is not provided.

In addition, prior art and current product generally adopt two air inlet centrifugal fan of radial type, and this kind of fan advantage is simple process, but the shortcoming is that the wind pressure is unbalanced, and the wind pressure is not enough, is interfered by the wind of walking easily when outdoor use to influence and use experience.

The inventor of the application finds that, through intensive research on the product and related patents, the technical problems of the steamer type closed space and the defect of the moxibustion heat sensation cannot be solved fundamentally no matter technically or on the product, and particularly, the integrated neck hanging fan needs to solve the technical problems of the defect urgently so as to improve the user experience and further be beneficial to marketization and popularization of the product.

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 and product defects of the steamer type closed space and the broil heat sensation of the existing neck hanging fan, and to improve the blowing air pressure and the blowing air volume.

SUMMERY OF THE UTILITY MODEL

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

In order to solve the above technical problem, the present application provides a neck hanging fan, which includes:

the fan comprises a pressurized centrifugal fan, the pressurized centrifugal fan comprises fan blades, and the fan blades are ternary blades at least partially in a twisted shape so as to improve the air volume and the air pressure of air flowing in the neck hanging fan;

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

The application provides a hang neck fan, hang neck fan includes fan and major structure, the fan includes pressure boost centrifugal fan, pressure boost centrifugal fan includes the flabellum, the flabellum is the ternary blade of distortion form for at least part to promote the inside gas flow's of hanging neck fan amount of wind and wind pressure, major structure is used for setting up the air intake fan and air outlet, major structure still is formed with one or more ventilation holes that are used for the circulation of air, wherein, the fan is used for with wind via the air intake inhales and follows the air outlet blows out, the ventilation hole is used for allowing the air free flow of neighbouring neck. Through the above technical scheme of this application, can realize following a plurality of technological effects at least:

(1) The fan blade impeller with the conventional or even large-size radius can be used to ensure the blowing and heat dissipation effects, and the whole volume of the main body structure is increased while the neck part is ventilated and cooled through the skillfully designed ventilation holes, so that a steamer type closed space formed by the large main body structure can be avoided;

(2) The ventilation holes are arranged, and the variable multi-air-channel is formed in the main body structure, so that the redundancy of the internal structure of the main body structure is avoided, all functional components can be arranged at proper positions, and the need of filling in the main body structure as in the prior art is avoided;

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

(4) The vent holes are additionally formed in the main body structure, so that the contact surface area of the main body structure and external air is directly increased, and meanwhile, heat dissipated by components in the neck hanging fan can be quickly 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, less materials can be used, so that the whole product is lighter and thinner, and unnecessary burden feeling brought to the neck of a user due to overweight of the product is avoided;

(6) This application carries out organic combination through the structure that adopts the ventilation hole and the pressure boost centrifugal fan of ternary blade, can will get rid of because the size that the pressure boost centrifugal fan of ternary blade increases, wholly from the vision lighter and more handy on the contrary, avoids the enclosure space of food steamer formula that big blade caused and the searing that leads to the fact moreover to feel, ensures that user's use is experienced and the marketization of product.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a prior art integrated muffler fan;

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

fig. 3 is a schematic perspective view of an embodiment of a neck hanging fan according to the present application;

FIG. 4 is an exploded view of a portion of the neck fan according to an embodiment of the present disclosure;

FIG. 5 is an exploded view of a portion of the neck fan according to an embodiment of the present disclosure;

fig. 6 is a schematic perspective view of a neck hanging fan according to another embodiment of the present application;

FIG. 7 is an exploded view of a neck fan according to another embodiment of the present application;

FIG. 8 is an exploded view of the neck fan according to another embodiment of the present application;

FIG. 9 is a cross-sectional view of an embodiment of the neck hanging fan of the present application, showing the width of the fan and the air duct;

fig. 10 is a schematic perspective view of another embodiment of the neck hanging fan of the present application;

fig. 11 is a schematic structural view of an inner casing of the neck hanging fan shown in fig. 10;

FIG. 12 is a schematic structural diagram of an outer casing of the neck hanging fan shown in FIG. 10;

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

FIG. 14 is an exploded view of a portion of a neck fan according to yet another embodiment of the present application, showing a decorative element;

FIG. 15 is an exploded view of a portion of a neck fan according to another embodiment of the present application;

FIG. 16 is an exploded view of a portion of a neck fan according to another embodiment of the present application;

fig. 17 is a schematic perspective view of a neck hanging fan according to another embodiment of the present application;

FIG. 18 is an exploded view of a portion of the neck fan shown in FIG. 17;

FIG. 19 is an exploded view of another perspective of the neck hanging fan shown in FIG. 17;

FIG. 20 is an exploded view of a portion of the neck hanging fan shown in FIG. 17 from a different perspective;

fig. 21 is a schematic structural view of another embodiment of the neck hanging fan of the present application, in which the fan inside the neck hanging fan is shown outside;

fig. 22 is a schematic structural view of a neck hanging fan according to another embodiment of the present application, in which the fan inside the neck hanging fan is shown outside;

FIG. 23 is an exploded view of a portion of a neck fan according to another embodiment of the present application;

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

fig. 25 is a schematic perspective view of a neck hanging fan according to another embodiment of the present application, in which the fan inside the neck hanging fan is shown outside;

FIG. 26 is an exploded view of a portion of a neck fan according to another embodiment of the present application;

fig. 27 is a partial structure view of the neck hanging fan shown in fig. 26;

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

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

fig. 30 is a schematic perspective view of a neck hanging fan according to another embodiment of the present application, wherein the fan inside the neck hanging fan is displayed outside.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Example one

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

The embodiment of the present 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 configured to provide 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 air circulation, wherein the fan 10 is configured to suck wind in from the air inlet 201 and blow out from the air outlet 202, and the ventilation holes 30 are configured to allow air near the neck to flow freely.

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

It is noted that the vent 30 may be one and extend along the length of the main structure 20. Alternatively, as shown in FIG. 5, the vent holes 30 may be two and located at the first end 205 and the second end 206 of the body structure 20, respectively. Alternatively, as shown in fig. 6, the vent 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 vent 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-mentioned embodiment of one or more ventilation holes 30, the total ventilation area of the ventilation holes 30 may affect the direct ventilation and heat dissipation effects, for example, the larger the total ventilation area, the more significant the heat dissipation effect; the present embodiment can increase the total ventilation area by increasing the number of the ventilation holes 30 or increasing the area of the single ventilation hole 30. In a specific application, since the material of the main structure 20 may affect the structural strength of the product, the present application may select to increase the area of the vent 30 according to the material of the main structure 20, or adopt a manner of matching the plurality of vents 30 to ensure the structural strength.

Specifically, as shown in fig. 7, 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 and first and second

inner housings

2111 and 2112 connected to the inner housing body 2110; the case body 212 includes a case body 2120 and first and

second cases

2121 and 2122 connected to the case body 2120; wherein, the inner shell body 2110 and the outer shell body 2120 are covered to form the accommodating space 200, the first inner shell 2111 and the first outer shell 2121 are covered to form the first bridge 221, the second inner shell 2112 and the second outer shell 2122 are covered to form the second bridge 222, and the first bridge 221 and the second bridge 222 cooperate to form one or more vent holes 30.

It should be added that the main body structure 20 is designed in a left-right substantially symmetrical manner, and therefore, the reference numerals of the present application with respect to the drawings are partially marked on the first ends 205, 271, and the other portions are marked on the second ends 206, 272, etc., within the scope that those skilled in the art can easily understand the reference numerals, and should not be interpreted as a reference numeral error. Of course, in other embodiments, the main structure 20 may also adopt an asymmetric design, such as only one fan 10 disposed at either end, or only one fan disposed on the middle portion 273, which will not be described in detail if it is easily understood by those skilled in the art.

Wherein, this application air intake 201 can be seted up at interior casing 211 and shell body 212, perhaps to wear the user's neck as an example, and medial surface 203, lateral surface 204, top surface and/or the bottom surface of major structure 20 can be seted up to air intake 201, and it can make up according to the air volume demand of difference, can also make up the setting according to different noises, does not do not limit here.

In addition, this application air outlet 202 also can set up at medial surface 203, top surface and/or bottom surface according to actual need, and it can be according to the position demand of blowing of difference and make up, can also make up the setting according to different noises, does not do the restriction here.

It should be added that the cross-sectional area of the ventilation channel of the ventilation holes 30 of the present embodiment is racetrack circular (as shown in fig. 11 and 12), circular, wavy or similar to the overall shape of the main body structure 20, wherein the circular ventilation holes 30 may be arranged in a plurality of rows, the wavy ventilation holes 30 may extend along the length direction of the main body structure 20, and the ventilation holes 30 similar to the overall shape of the main body structure 20 may visually achieve the consistency and lightness of the overall product.

Through the embodiment, the fan blade impeller with the conventional or even larger size radius can be used to ensure the blowing and heat dissipation effect, and the ventilation and heat dissipation of the neck part are carried out through the ventilation holes 30 which are skillfully designed while the whole volume of the main body structure 20 is increased, so that a steamer type closed space formed by a larger main body structure can be avoided; by arranging the vent holes 30 and forming the variable multi-air channels in the main body structure 20, the redundancy of the internal structure of the main body structure 20 is avoided, and all functional components can be arranged at proper positions without being filled in the main body structure 20 as in the prior art; the heating element can be isolated from other elements through the changeable air channel formed by the vent holes 30, and particularly high-heat components such as a control circuit board and the like can be independently arranged in any side wall of the vent holes 30; because the ventilation holes 30 are additionally arranged on the main body structure 20, the contact surface area of the main body structure 20 and external air is directly increased, and meanwhile, through smooth circulation of air, heat dissipated by components in the neck hanging fan can be quickly dissipated outwards through a larger contact surface area, so that heat accumulation in the main body structure 20 is avoided; through setting up ventilation hole 30, less material can be used to this application to whole product is more frivolous, avoids the product overweight and brings unnecessary burden sense for user's neck.

The inner housing 211 and the outer housing 212 are not limited to be configured to be covered with an inner cover and an outer cover, but in other processes, the two may be configured to be integrated, or formed by removing a bottom cover and a top cover, and are not limited herein.

In some embodiments, as shown in fig. 4, the neck hanging fan may further include a control circuit board 40, a battery 50 and a wire, and for convenience of description, the following description will be given with reference to different setting application examples:

in application example 1, as shown in fig. 5, 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 in the inner side, the upper side and/or the lower side of the first bridge 221, and an air outlet 202 is formed in the inner side and/or the upper side of a second air duct is formed in the second bridge 222. In this way, the face close to the first bridge 221 may be quickly blown to dissipate heat, and the air flow of the ventilation hole 30 may be further promoted by providing the air outlet 202 at the position of the ventilation hole 30.

Application example 2, not shown in the drawings, the accommodating space 200 is used for installing the fan 10, a first air duct is formed in the first bridge 221, and an air outlet 202 is formed on the inner side, the upper side and/or the lower side of the first bridge 221, and a control circuit board 40, a battery 50 and a lead electrically connected with the battery 50 are installed in the second bridge 222, because the vent hole 30 is additionally arranged on the main structure 20, the contact surface area between the main structure 20 and external air is directly increased, and meanwhile, through smooth circulation of air, the control circuit board 40, the battery 50 and heat dissipated from the battery 50 inside the neck hanging fan can be rapidly dissipated to the outside through a larger contact surface area, so that heat accumulation inside the main structure 20 is avoided.

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 a wire electrically connected to the battery 50, the first bridge 221 has a first air duct formed therein, and the air outlet 202 is formed inside, above and/or below the first bridge 221.

In application example 4, not shown, one or more fans 10 are installed in the first bridge 221 and/or the second bridge 222, and the accommodating space 200 is used for installing the battery 50, the control circuit board 40 and a wire electrically connected to the battery 50.

In application example 5, as shown in fig. 4 and 7, 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 from the accommodating space 200, the semiconductor refrigeration module 60 is installed in the second bridge 222, 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, and blows the cooled/heated air out from the air outlet 202 of the first bridge 221. By the application example, the cooling/heating air channel with a longer path and a longer time can be provided for cooling/heating the air, the technical problem that the cooling effect is poor due to low power conversion of the semiconductor cooling module 60 is solved, and the blown air is ensured to be the air meeting the temperature requirement.

In application example 6, the accommodating 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 at an inner side and/or an upper side of the first bridge 221, and the second bridge 222 is used for installing the negative ion generating device 70 therein, as shown in fig. 5. With this application example, the negative ions released from the negative ion generating device 70 can enter the neck through the vent hole 30, and are prevented from being driven away by the wind of the fan, ensuring the use effect and the concentration of the negative ions.

In this embodiment, as shown in fig. 8, the fan 10 of the present application includes a centrifugal fan 101, the centrifugal fan 101 includes a motor 102, a fan blade 103, and a first air intake region 104 and a second air intake region 105 formed on two end surfaces of the fan blade 103 and spaced apart from each other, and the main body structure 20 is formed with an air inlet 201 communicated with the first air intake region 104 and the second air intake region 105.

Further, as shown in fig. 9, the fan 10 includes a centrifugal fan 101, the centrifugal fan 101 includes a motor 102, a fan blade 103, and a first air intake region 104 and a second air intake region 105 formed on two end surfaces of the fan blade 103 and spaced apart from each other, 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 of the main body structure 20, and a fan blade thickness WF smaller than or equal to a distance between the two end surfaces of the fan blade 103 are formed, and preferably, the maximum width WW is smaller than the fan blade thickness WF, so as to pressurize air entering the bridge in a width direction 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 ventilation 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 ventilation hole 30, and the ventilation hole 30 may be used to dissipate heat of the flowing wind of the main body structure 20.

Example two

Referring to fig. 3 to 9 and 10 to 12, fig. 10 is a schematic perspective view of a neck hanging fan according to another embodiment of the present invention, fig. 11 is a schematic structural diagram of an inner housing of the neck hanging fan shown in fig. 10, and fig. 12 is a schematic structural diagram of an outer housing of the neck hanging fan shown in 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 and first and second

inner housings

second cases

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

Correspondingly, in this embodiment, different application examples may also be set according to different bridge numbers:

in application example 7, the accommodating space 200 is used for installing the fan 10, and the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224 are respectively and correspondingly formed with air ducts therein and are respectively and correspondingly formed with air outlets 202 at the inner side and/or the upper side of the corresponding bridge.

In application example 8, the accommodating space 200 is used for installing the fan 10, the first bridge 221 and the third bridge 223 are respectively and correspondingly formed with an air duct and an air outlet 202 at 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 installed in the bridge body, a lithium battery adapted to the shape of the bridge body, such as a battery in the shape of a bar, for example 18650, may be used, and when the battery 50 is installed 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 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 passage and an air outlet 202 on the inner side and/or the upper side of the corresponding bridge, the first bridge 221 and the second bridge 222 are communicated with each other at one end far from the accommodating space 200, the third bridge 223 and the fourth bridge 224 are communicated with each other at one end far from the accommodating space 200, the second bridge 222 is used for installing the semiconductor refrigeration module 60, the fan 10 introduces the air sucked from the air inlet 201 into the second bridge 222 for cooling/heating by the semiconductor refrigeration module 60, introduces the cooled/heated air into the air passage 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 installing the semiconductor refrigeration module 60, the fan 10 introduces the air sucked from the air inlet 201 into the fourth bridge 224 for cooling/heating by the semiconductor refrigeration module 60, blows the air cooled/heated air out of the air outlet 223 communicated with each other end of the third bridge, and heats the air sucked from the air outlet of the third bridge 223.

In application example 10, 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 communicated with each other to form a cooling circuit, the semiconductor refrigeration module 60 is installed in at least three of the first bridge 221, the second bridge 222, the third bridge 223 and the fourth bridge 224, 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 out the cooled/heated air 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 accommodating space 200 and separated from the accommodating space 200.

In application example 11, the accommodating space 200 is used for installing the fan 10, the first bridge 221 and the third bridge 223 are respectively and correspondingly formed with an air duct and an air outlet 202 at the inner side and/or the upper side of the corresponding bridge, and the second bridge 222 and/or the fourth bridge 224 are respectively provided with the negative ion generating device 70 therein.

According to the application example 9 and the application example 10, the longer air duct is formed through the matching of the plurality of bridges, the air 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 particularly noted that, in the above embodiment, the air outlet 202 is not limited or fixed to the setting position as one or more drawings, and the air outlet 202 may be opened or closed according to the requirements of different application examples, which can be understood in combination with different application examples.

In the third embodiment, please refer to fig. 5 again, the main body structure 20 of the present embodiment includes a first hanging neck main body 205 and a second hanging neck main body 206 respectively hung on two sides of the neck of the user, the first hanging neck main body 205 and the second hanging neck main body 206 are hinged to each other, wherein the ventilation holes 30 are formed on the first hanging neck main body 205 and the second hanging neck main body 206; specifically, as shown in fig. 7, the first neckset body 205 and the second neckset body 206 may be hinged to each other by a hinge mechanism 29.

Fourth embodiment, as shown in fig. 13, the main body structure 20 includes a first hanging neck main body 271 and a second hanging neck main body 272 respectively hung on both sides of the neck of the user, and a middle portion 273 located at the rear neck portion, and the first hanging neck main body 271 and the second hanging neck main body 272 may be hinged to the middle portion 273 by a hinge mechanism 29, respectively, wherein the ventilation hole 30 is formed on the first hanging neck main body 271, the second hanging neck main 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 herein.

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

Of course, when the decoration member 91 is hinged to the main body structure 20, when the semiconductor refrigeration module 60 is provided and used in winter, the ventilation hole 30 can be completely covered, and it is ensured that the air heated by the semiconductor refrigeration module 60 keeps warm to the neck and the face, and it is avoided that the cold outside air is blown into the neck from the ventilation hole 30, so that the use effect is ensured.

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

In other embodiments, the vortex-like tongue structure 24 may be structurally integrated with one or more of the pontoons. Specifically, referring to fig. 16, a bridge covering plate 300 surrounding the ventilation hole 30 is further formed on the inner housing 211, and the vortex-like tongue structure 24 and the bridge covering plate 300 can be integrally disposed to achieve reuse of functions and reduce use of plate removing members.

In some embodiments, the neck hanging fan may further include a volute simulating structure 25, and the volute simulating structure 25 may be arranged around the fan 10 in an archimedes spiral involute. In other embodiments, the volute-simulating structure 25 may be integrated into the inner housing 211 and/or the outer housing 212, for example, by changing the structure of the inner housing 211 and/or the outer housing 212 for setting the volute of the fan 10 to be consistent with the overall shape of the volute-simulating structure 25, it is no longer necessary to separately set an additional volute-simulating structure 25, the structure is simpler, and the product weight is reduced.

With reference to fig. 16, the neck hanging fan may further include an air duct partition 26, and the air duct partition 26 is correspondingly formed in one or more air ducts of the bridge 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 to control the air pressure difference at each air outlet position within a preset range, so as to avoid the air pressure at the air outlet 202 partially far away from the fan 10 from being too small.

In a seventh embodiment, please refer to fig. 3 to 9 again in combination with the above-mentioned embodiment of the neck hanging fan, the present application further provides an air duct device, the air duct device is configured to be used in any of the above-mentioned embodiments of the neck hanging fan, 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.

Wherein, the major structure 20 includes the medial surface 203 that is close to the neck and the lateral surface 204 that is far away from the neck, ventilation hole 30 runs through medial surface 203 and lateral surface 204 to allow the air of lateral surface 204 and the air of being close to the neck to circulate, wherein, ventilation hole 30 is one and extends the setting along the length direction of major structure 20, or ventilation hole 30 is two and is located the first end 205 and the second end 206 of major structure 20 respectively, or ventilation hole 30 is three and is located the first end 205 of major structure 20, the second end 206 and the middle part that corresponds with the back neck respectively, or ventilation hole 30 is four or more and is array interval setting along the length direction of major structure 20.

In the present 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 and first and second

inner housings

second cases

2121 and 2122 connected to the case body 2120; the inner housing body 2110 is coupled to the outer housing body 2120 to form the receiving space 200, the first inner housing 2111 is coupled to the first outer housing 2121 to form a first bridge 221, the second inner housing 2112 is coupled to the second outer housing 2122 to form a second bridge 222, and the first bridge 221 and the second bridge 222 cooperate to form one or more vents 30.

In this embodiment, the following 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 a second air duct is formed in the second bridge 222; or

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 a control circuit board 40, a battery 50 and a lead electrically connected with the battery 50 are installed in the second bridge 222; or

The accommodating space 200 is used for installing the fan 10, the control circuit board 40, the battery 50 and a wire 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

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 a lead electrically connected with the battery 50; or

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 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 end, and blows the cooled/heated air out of the air outlet 202 of the first bridge 221; or

The accommodating 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 formed at the inner side and/or the upper side of the first bridge 221, and the second bridge 222 is provided with the negative ion generating device 70 therein.

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

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

the accommodating space 200 of the present embodiment is used for installing the fan 10, and air ducts are correspondingly 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 bridge; or

The accommodating space 200 is used for installing the fan 10, the first bridge 221 and the third bridge 223 are respectively and correspondingly formed with an air duct and formed with an air outlet 202 at 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

The accommodating space 200 is used for installing the fan 10, the first bridge 221 and the third bridge 223 are respectively and correspondingly provided with an air channel and an air outlet 202 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, and guides the cooled/heated air into the air channel of the first bridge 221 through the communicated 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 into the fourth bridge 224 for cooling/heating through the semiconductor refrigeration module 60, and guides the cooled/heated air into the air outlet 223 through the air channel of the third bridge 223 and heats the air channel of the third bridge 201 and the third bridge 223; or

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

The accommodating space 200 is used for installing the fan 10, the first bridge 221 and the third bridge 223 are respectively and correspondingly formed with an air duct and an air outlet 202 at the inner side and/or the upper side of the corresponding bridge, and the second bridge 222 and/or the fourth bridge 224 are respectively provided with the negative ion generating device 70.

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

As shown in fig. 13, the main body structure 20 of the air duct device includes a first hanging neck main body 271, a second hanging neck main body 272 respectively hung on both sides of the neck of the user, and a middle portion 273 located at the rear neck portion, and the first hanging neck main body 271 and the second hanging neck main body 272 may be respectively hinged with the middle portion 273 by a hinge mechanism 29, wherein the vent hole 30 is formed on the first hanging neck main body 271, the second hanging neck main 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 herein.

As shown in fig. 14, the air duct device may further include a decoration 91, and the decoration 91 is correspondingly disposed to match with the ventilation hole 30, wherein the decoration 91 is a cover plate having a mesh-shaped hole 910 and is used for covering the ventilation hole 30, or the decoration 91 is hinged to the main body structure 20 to adjust a ventilation area where the ventilation hole 30 is exposed.

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

In some embodiments, the air duct device may further include a volute-like structure 25, and the volute-like structure 25 may be disposed around the fan 10 in an archimedes spiral involute. In other embodiments, the volute-simulating structure 25 may be integrated into the inner housing 211 and/or the outer housing 212, for example, by changing the structure of the inner housing 211 and/or the outer housing 212 for setting the volute of the fan 10 to be consistent with the overall shape of the volute-simulating structure 25, it is no longer necessary to separately set an additional volute-simulating structure 25, the structure is simpler, and the product weight is reduced.

Referring 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 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 illustrating a neck hanging fan according to another embodiment of the present application, fig. 18 is a schematic partially exploded view illustrating a view angle of the neck hanging fan shown in fig. 17, fig. 19 is a schematic partially exploded view illustrating another view angle of the neck hanging fan shown in fig. 17, and fig. 20 is a schematic partially exploded view illustrating yet another view angle of the neck hanging fan shown in fig. 17.

As mentioned 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, the 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 in from the air inlet 201 and blowing out from the air outlet 202, the ventilation holes 30 are used for allowing air near the neck to flow freely, the main body structure 20 of the present embodiment includes an inner side surface 203 near the neck and an outer side surface 204 far away from the neck, and the ventilation holes 30 penetrate through the inner side surface 203 and the outer side surface 204 to allow air of the outer side surface 204 to circulate with air near the neck.

And with other embodiments difference lies in, this embodiment the fan includes pressure boost centrifugal fan, pressure boost centrifugal fan includes motor 81 and flabellum 80, wherein, flabellum 80 is the ternary blade of twist form for at least part, and the whole concave-convex structure that is similar to the petal of ternary blade of twist form belongs to one of the oblique flow blade, wholly not at same plane or same arcwall face to twist structure through ternary blade promotes hanging neck fan inside gas flow's amount of wind and wind pressure, and utilizes ternary blade to ensure that the blowing speed of each air outlet 202 is more even, promotes the rationality of wind pressure distribution, reduces the loss of gas flow.

Specifically, the fan blade 80 includes a mounting base plate 801 and a ternary blade 800 disposed on the mounting base plate 801, wherein the ternary blade 800 may be fixed to the mounting base plate 801 by means of snap-fit, ultrasonic or integral molding. Preferably, the ternary blade 800 and the mounting base plate 801 may be made of metal materials, so as to improve the yield of finished products. The other side of the mounting base plate 801 opposite to the side where the ternary blade 800 is arranged is also provided with a mounting hole for mounting the motor 81.

In some embodiments, a wind guiding cone may be further formed on the mounting base plate 801 at a side where the ternary blade 800 is disposed, so as to further increase wind pressure and further increase a wind blowing distance.

Further, pressure boost centrifugal fan can also include kuppe 82, kuppe 82 with flabellum 80 sets up relatively and corresponding with air intake 201, kuppe 82 can include cover plate 820 and arc cover 821, arc cover 821 from cover plate 820 extends the shaping, just arc cover 821 with the corresponding internal surface of three element blade 800 with the outer profile looks adaptation of three element blade 800 sets up at intervals each other to promote the wind pressure. In a preferred embodiment, the arc cover 821 abuts against the ternary blade 800 to reduce turbulence, and further, the ternary blade 800 may be connected to the arc cover 821 by means of a snap fit, an ultrasonic method, or an integral method, so as to form a fully enclosed supercharged centrifugal fan.

In addition, as shown in fig. 19 and 20, in any embodiment of the present application, the air outlet 202 may be provided on the bridge covering plate 300 disposed around the vent 30, preferably, the air outlet 202 on the bridge covering plate 300 may be a slit air outlet, and in other embodiments, a plurality of air outlets disposed at intervals may also be provided. It should be particularly noted that the air outlet 202 on the bridge covering plate 300 may be disposed obliquely toward the neck, so as to blow air toward the neck, and further improve the ventilation effect of the ventilation hole 30 on the neck.

It should be particularly noted that, since the three-element blade 800 is adopted in the present embodiment, compared with the conventional centrifugal fan shown in fig. 3 to 16, the radial size and the thickness of the rotating shaft of the fan blade 80 are different in the order of centimeters, especially in the embodiment adopting the air guide cover 82, the overall size is larger, and the increase of the overall size further aggravates the steamer-type enclosed space formed by the main structure and the heat sensation caused by the steamer-type enclosed space, and the volume is large and is not suitable for being hung on the neck, therefore, the pressurized centrifugal fan adopting the three-element blade 800 in the present embodiment is not available in the existing neck hanging fan, and the present application can eliminate the increased size of the pressurized centrifugal fan adopting the three-element blade 800 by organically combining the structure adopting the vent hole 30 and the pressurized centrifugal fan adopting the three-element blade 800, so that the overall appearance is lighter and the steamer-type enclosed space caused by the large blade and the heat sensation caused by the large blade are avoided, thereby ensuring the use experience of the user and the marketization of the product.

It should be noted that after the centrifugal blower with the triple-element blade 800 is adopted, the air inlet 201 of the neck hanging fan of the present application may be arranged in a single-sided manner, for example, may be arranged on the outer side 204 away from the neck, see fig. 21, where fig. 21 is a schematic structural diagram of a further embodiment of the neck hanging fan of the present application, where the fan inside the neck hanging 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.

Of course, in other embodiments, the air-blowing device can be disposed on the inner side surface 203, the top surface or the bottom surface of the main body structure 20, see fig. 22 disposed on the inner side surface 203, fig. 22 is a schematic structural view of a further embodiment of the present application, in which the air-blowing device inside the neck-hanging fan is shown on the outside, and a plurality of air-blowing 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 added and explained that, in the prior art, because the twisted structure of the ternary blade, the manufacturing process is complicated, the number of the dies is multiplied, and the assembly process is complicated, therefore, both 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 not used in the portable fan field, and even not used in the neck-hung fan field.

In an embodiment, please refer to fig. 23, fig. 23 is a partially exploded view of a neck hanging fan according to another embodiment of the present application. The same parts of the neck hanging fan in this embodiment as those in other embodiments are within the scope easily understood by those skilled in the art, and are not repeated herein, where the difference of this embodiment is that the fan in this embodiment includes a radial single-side centrifugal fan 90, the radial single-side centrifugal fan 90 includes an installation base plate 901 and radial single-side fan blades 900 connected to the installation base plate 901, and one side of the installation base plate 901, which enters air, protrudes outward to form an air guiding platform, so as to lift air pressure.

Correspondingly, after the radial single-side centrifugal fan 90 is adopted, the air inlet 201 of the neck hanging fan of the present application may be arranged in a single-side manner, for example, may be arranged on an outer side 204 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 in detail, fig. 24 is a schematic perspective view of a further embodiment of the neck hanging fan of the present application, wherein the fan inside the neck hanging fan is shown outside, and fig. 25 is a schematic perspective view of a further embodiment of the neck hanging fan of the present application, wherein the fan inside the neck hanging fan is shown outside.

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

In an eleventh embodiment, please refer to fig. 26 to 30, fig. 26 is a partially exploded view of a neck hanging fan according to another embodiment of the present application, fig. 27 is a partially exploded view of the neck hanging fan shown in fig. 26, fig. 28 is a partially exploded view of the neck hanging fan shown in fig. 26 from another view angle, wherein a control circuit board disposed on the other side is shown in a ventilation hole, fig. 29 is a schematic perspective view of a further embodiment of the neck hanging fan according to the present application, and fig. 30 is a schematic perspective view of the neck hanging fan according to another embodiment of the present application.

The fan of the present embodiment includes a centrifugal fan with a motor (not shown) and a fan blade 93, and is different from the ninth embodiment in that the fan blade 93 is a two-component blade, and the two-component blade of the present embodiment may be a diagonal two-component blade, specifically, the fan blade 93 includes a mounting base plate 931 and a two-component blade 930 disposed on the mounting base plate 931, where the two-component blade 930 may be fixed to the mounting base plate 931 by a snap-fit, ultrasonic or integral molding manner. Preferably, the dual blade 930 and the mounting base plate 931 can be made of metal materials as cost allows, so as to improve the yield of the finished product.

It should be added that, in the present embodiment, an oblique-flow binary blade is adopted, and different from a ternary blade, since the binary blade is integrally in a sheet shape, that is, on the same plane or an arc-shaped surface, and does not generate a portion extending from a certain plane in a twisted manner, as shown in fig. 27 in particular, the binary blade 930 may be integrally arranged perpendicular to the plane where the mounting bottom plate 931 is located, so that difficulty of a mold may be reduced, the number of molds may be reduced, and a yield may be greatly improved, thereby enabling mass production and reducing production cost and labor cost.

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

Further, the centrifugal fan may further include a guiding cover 94, the guiding cover 94 and the fan blades 93 are disposed oppositely and correspond to the air inlet 201, the guiding cover 94 may include a cover plate 940 and an arc-shaped cover body 941, the arc-shaped cover body 941 extends from the cover plate 940, and the arc-shaped cover body 941 and the inner surface corresponding to the binary blades 930 are adapted to the outer contour of the binary blades 930 to lift the air pressure. In a preferred embodiment, the arc-shaped cover 941 abuts against the binary blade 930 to reduce turbulence, and further, the binary blade 930 may be connected to the arc-shaped cover 941 by means of snap-fit, ultrasonic or integral molding to form a fully enclosed pressurized centrifugal fan.

It should be noted that after the supercharging centrifugal fan using the binary blade 930, the air inlet 201 of the neck hanging fan of the present application may be disposed in a unilateral manner, for example, may be disposed on the outer side 204 away from the neck, see fig. 29, where fig. 29 is a schematic perspective view of a further embodiment of the neck hanging fan of the present application, where the fan inside the neck hanging fan is shown outside, and meanwhile, 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.

Of course, in other embodiments, the air-blowing device may be disposed on the inner side surface 203, the top surface or the bottom surface of the main body structure 20, see fig. 30 disposed on the inner side surface 203, fig. 30 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 shown on the outside, and meanwhile, a plurality of air vents 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.

In addition, as shown in fig. 26, in the present application, a battery mounting seat 501 may be further disposed inside the main body structure 20 for fixing the battery 50 and avoiding shaking thereof, preferably, the battery mounting seat 501 is made of a soft material such as silica gel, and the battery 50 may be attached to the inside of the main body structure 20 by using foam or double-sided adhesive, so as to avoid the battery 50 being vibrated and loosened during walking use and reduce the after-sale problem.

In the twelfth embodiment, as shown in fig. 4, 16, 18, 19, 23, 26, etc., in the present application, a bridge cover plate 300 may be formed on the inner case 211 so as to surround the vent hole 30, a bridge cover plate 300 may be formed on the outer case 212 so as to surround the vent hole 30, or a part of the bridge cover plate 300 may be formed on the inner case 211 and another part of the bridge cover plate 300 may be formed on the outer case 212 at the same time, so that after the inner case 211 and the outer case 212 are closed, the part of the bridge cover plate 300 formed on the inner case 211 and the another part of the bridge cover plate 300 formed on the outer case 212 are abutted to each other to form the vent hole 30.

In some embodiments, after the inner housing 211 and the outer housing 212 are closed, a part of the bridge cover plate 300 formed on the inner housing 211 does not abut against another part of the bridge cover plate 300 formed on the outer housing 212, and the slit-shaped air outlet 202 may 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 may be improved.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims

1. A hang neck fan which characterized in that, hang neck fan includes:

the fan comprises a pressurizing centrifugal fan, the pressurizing centrifugal fan comprises fan blades, and the fan blades are ternary blades at least partially in a twisted shape so as to improve the air volume and the air pressure of air flowing in the neck hanging fan;

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

2. The neck hanging fan as claimed in claim 1, wherein the main body structure includes an inner side surface adjacent to the neck and an outer side surface away from the neck, and the vent holes penetrate through the inner side surface and the outer side surface to allow air on the outer side surface to circulate with the air adjacent to the neck, wherein the vent holes are one and extend along a length direction of the main body structure, or the vent holes are two and are respectively located at a first end and a second end of the main body structure, or the vent holes are three and are respectively located at the first end, the second end and a middle portion corresponding to the back neck portion of the main body structure, or the vent holes are four or more and are arranged in an array type interval along the length direction of the main body structure.

3. The neck fan of claim 2 wherein the main body structure comprises:

the inner shell comprises an inner shell main body, and a first inner shell and a second inner shell which are connected with the inner shell main body;

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

wherein, the inner shell main part with the outer casing main part lid closes and forms accommodation space, first inner shell with first outer casing lid closes and forms first pontic, the second inner shell with the second outer casing lid closes and forms the second pontic, first pontic with the second pontic cooperatees and forms one or more the ventilation hole.

4. The neck hanging fan as claimed in claim 3, further comprising a control circuit board, a battery and a wire:

the accommodating space is used for installing the fan, a first air channel 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 channel formed in the second bridge body; or

The accommodating space is used for installing the fan, a first air channel is formed in the first bridge body, the air outlet is formed in the inner side, the upper side and/or the lower side of the first bridge body, and the second bridge body is internally used for installing a control circuit board, a battery and a lead electrically connected with the battery; or

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

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

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 used for installing a semiconductor refrigeration module, the fan guides the air sucked from the air inlet into the second bridge body for cooling/heating through the semiconductor refrigeration module, guides the cooled/heated air into the air channel of the first bridge body through the communicated end, and blows the cooled/heated air out of the air outlet of the first bridge body; or

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

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

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

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

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

6. The neck hanging 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 air outlets are formed on the inner side and/or the upper side of the corresponding bridge body; or

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 side and/or the upper side of the corresponding bridge body, and the second bridge body and/or the fourth bridge body are used for installing a battery and/or a control circuit board; or

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 side and/or the upper side of the corresponding bridge bodies, 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 refrigeration module, the fan guides the air sucked from the air inlet into the second bridge body for cooling/heating through the semiconductor refrigeration module, guides the cooled/heated air into the air channel of the first bridge body through the communicated end, blows the cooled/heated air out of the air outlet of the first bridge body, the fourth bridge body is used for installing the semiconductor refrigeration module, the fan guides the air sucked from the air inlet into the fourth bridge body for cooling/heating through the semiconductor refrigeration module, guides the cooled/heated air into the air channel through the communicated end, and heats the cooled/heated air blown out of the third bridge body from the air outlet of the third bridge body; or

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 of the first bridge body, the second bridge body, the third bridge body and the fourth bridge body are internally provided with a semiconductor refrigeration module, the fan guides air sucked from an air inlet into the cooling loop for cooling/heating through the semiconductor refrigeration module, and blows out the cooled/heated air through an air outlet, wherein the air outlet is arranged in the last bridge body of the cooling loop and/or an air outlet channel which is arranged above the accommodating space and is isolated from the accommodating space; or

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

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

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

The neck hanging fan further comprises a vortex-imitating tongue structure, the vortex-imitating tongue structure is at least partially arranged around the fan, the vortex-imitating tongue structure is formed in the accommodating space, or the vortex-imitating tongue structure and one or more bridges are structurally integrated and reused; and/or

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

Set up the battery mount pad in major structure inside for fixed battery, the battery mount pad adopts soft materials to adopt bubble cotton or double faced adhesive tape to attach the battery in major structure.

8. The neck hanging fan according to any one of claims 1-6, 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 the neck of a user, the first neck hanging body and the second neck hanging body are hinged with each other, and the ventilation holes are formed in the first neck hanging body and the second neck hanging body; or

The main body structure comprises a first neck hanging body, a second neck hanging body and a middle part, wherein the first neck hanging body and the second neck hanging body are respectively hung on two sides of the neck of a user, the middle part is positioned on the back neck, 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

The cross-sectional area of the ventilation channel of the ventilation hole is in a track circle shape, a wave shape or similar to the overall shape of the main body structure.

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

the fan blades comprise a mounting base plate and ternary blades arranged on the mounting base plate, wherein the ternary blades are fixed on the mounting base 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 an installation bottom plate and a ternary blade arranged on the installation bottom plate, and an air guide cone is formed on the installation bottom plate on one side where the ternary blade is arranged.

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

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

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

or the supercharging centrifugal fan further comprises a flow guide cover, the flow guide cover comprises a cover plate and an arc-shaped cover body, the arc-shaped cover body extends and is formed from the cover plate, the arc-shaped cover body is abutted against 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 a fully-closed supercharging centrifugal fan;

or, set up the air outlet on the bridge lid plywood that sets up around the ventilation hole, wherein, the air outlet on the bridge lid plywood is the gap formula air outlet.