Neck-hung fan

Abstract

The utility model provides a neck-hanging fan. The neck-hanging fan comprises a first fan main body; the first fan body is used for being hung on one side of the neck of a user to blow air to the user, the first fan body comprises a first fan assembly, a first switch and a first main control module, the first switch and the first fan assembly are both electrically connected with the first main control module, the first switch is used for being operated by the user, and the first fan assembly is used for being electrically connected with the first main control module. The first main control module is used for receiving a signal generated when the first switch is operated and controlling the rotating speed gear of the first fan assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fan field, especially a neck fan. BACKGROUND

[0002] The fan main body is a convenient portable cooling equipment, which has received extensive attention and application in the hot season in recent years, especially the neck fan, which can be carried and can free hands, and is loved by the majority of users.

[0003] But with the continuous pursuit of comfortable experience, the performance of the neck fan is gradually improved. In the hot summer, users hope to obtain more rapid and direct cooling effect in the high temperature environment, and the traditional neck fan design cannot fully meet this demand.

[0004] Therefore, the utility model provides a neck fan, so that the wind in the fan is more directly and concentratedly blown to the user, thereby providing more comfortable use experience for the user in the hot environment. The design makes the neck fan realize portability while improving the cooling effect, and meets the increasing demand of users for personalized and efficient cooling equipment. SUMMARY

[0005] In order to overcome the defects of the prior art, the utility model provides a neck fan.

[0006] An embodiment of the utility model provides a neck fan, which comprises a first fan main body; the first fan main body is used for being hung on one side of the neck of a user to blow wind to the user, the first fan main body comprises a first fan assembly, a first switch and a first main control module, the first switch and the first fan assembly are electrically connected with the first main control module, the first switch is used for being operated by the user, and the first main control module is used for receiving a signal generated when the first switch is operated and controlling the speed gear of the first fan assembly.

[0007] The utility model has the advantages that the utility model provides a neck fan, which comprises two fan main bodies, each fan main body has a control switch, so that the user can conveniently control the neck fan and improve the user experience. In addition, the two fan main bodies can also form a modular design, which is convenient to assemble and can reduce the assembly and maintenance cost, and the user can also disassemble, assemble, store and DIY design, etc., thereby improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, and the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0009] The present application will be further described below in combination with the drawings and embodiments.

[0010] Figure 1 It is a whole structure schematic diagram of the neck-hung fan of the embodiment one of the present application;

[0011] Figure 2 It is a whole structure schematic diagram of the neck-hung fan of another perspective of the embodiment one of the present application;

[0012] Figure 3 It is a sectional view of the neck-hung fan of the embodiment one of the present application;

[0013] Figure 4 It is an exploded view of the neck-hung fan of the embodiment one of the present application;

[0014] Figure 5 It is Figure 3 the local enlarged view of V part in the above figure

[0015] Figure 6 It is Figure 4 the local enlarged view of VI part in the above figure

[0016] Figure 7 It is a principle block diagram of the neck-hung fan of the embodiment one of the present application;

[0017] Figure 8 It is a circuit diagram of the first charging interface of the neck-hung fan of the present application;

[0018] Figure 9 It is a circuit diagram of the first charging control module of the neck-hung fan of the present application;

[0019] Figure 10 It is a circuit diagram of the first battery of the neck-hung fan of the present application;

[0020] Figure 11 It is a circuit diagram of the first main control module of the neck-hung fan of the present application;

[0021] Figure 12 It is a circuit diagram of the first boost module and the first motor of the neck-hung fan of the present application;

[0022] Figure 13 It is a circuit diagram of the first main control module, the first boost module and the first motor of a modified embodiment of the neck-hung fan of the present application;

[0023] Figure 14 is the circuit diagram of the first main control module, the first voltage boosting module and the first motor of another changed embodiment of the neck fan of the utility model;

[0024] Figure 15 is the circuit diagram of the first main control module, the first voltage boosting module and the first motor of another changed embodiment of the neck fan of the utility model

[0025] Figure 16 is the overall structure schematic diagram of embodiment two of the neck fan of the utility model;

[0026] Figure 17 is the principle block diagram of the first main body part of embodiment two of the neck fan of the utility model;

[0027] Figure 18 is the principle block diagram of the second main body part of embodiment two of the neck fan of the utility model;

[0028] Figure 19 is the overall structure schematic diagram of embodiment three of the neck fan of the utility model;

[0029] Figure 20 is the exploded view of embodiment three of the neck fan of the utility model;

[0030] Figure 21 is another exploded view of embodiment three of the neck fan of the utility model;

[0031] Figure 22 is the sectional view of embodiment three of the neck fan of the utility model;

[0032] Figure 23 is the exploded view of the fan main body of the utility model;

[0033] Figure 24 is Figure 23 the exploded view from another angle;

[0034] Figure 25 is Figure 23 the structure schematic diagram of the outside of the first main body part of the fan main body shown in the figure;

[0035] Figure 26 is Figure 23 the structure schematic diagram of the inside of the first outer cover body of the fan main body shown in the figure;

[0036] Figure 27 is the metal screen structure schematic diagram of the first fan assembly of a changed embodiment of embodiment three of the fan main body of the utility model. DETAILED DESCRIPTION

[0037] Embodiment one

[0038] Reference Figures 1 to 13 The neck-hanging fan comprises a neck-hanging main body 1 and a first fan assembly 3. The lower end of the neck-hanging main body 1 is provided with a first air guide cavity 2 in a straight tube shape. The first air guide cavity 2 comprises a first air inlet 22 arranged at the lower end of the neck-hanging main body 1 and a first air outlet 23 arranged opposite to the first air inlet 22. The neck-hanging main body 1 comprises an inner end 11 in contact with the neck of a human body, and the first air outlet 23 is arranged towards the inner end 11. The first fan assembly 3 is arranged in the first air guide cavity 2, and the first fan assembly 3 is used to drive airflow to blow from the first air inlet 22 to the inner end 11 through the first air outlet 23. Through the above structure, since the first air guide cavity 2 is in a straight tube shape, the neck-hanging fan forms a straight blowing fan in a vertical direction. The first fan assembly 3 can drive airflow to blow from the first air inlet 22 to the inner end 11 through the first air outlet 23, greatly improving the blowing efficiency. When the user uses the neck-hanging fan, the user can directly feel the cool wind blowing directly to the neck, improving the overall performance of the fan. Moreover, since the first air guide cavity 2 is a straight tube cavity protruding from the neck-hanging main body 1 in one piece, this design enhances the overall aesthetics and design sense of the product, helps to improve the wearing comfort of the neck-hanging fan, and improves the overall quality and user experience of the product.

[0039] In this embodiment, the neck-hanging main body 1 is a U-shaped neck-hanging main body 1, which comprises a first main body part 101, a second main body part 102, and a connecting piece 103. The first main body part 101 and the second main body part 102 are detachably connected through the connecting piece 103. The connecting piece 103 is a flexible connecting piece 103, which can be a silica gel connecting piece, a plastic connecting piece, a rubber connecting piece, etc. The first fan assembly 3 is arranged in the first main body part 101.

[0040] In the embodiment, the neck fan (such as the first main body part 101) is provided with a concave first air guide path 12, the first air guide path 12 extends from the first air outlet 23 to the inner end part 11, and the first fan assembly 3 drives the airflow to blow out from the first air outlet 23 and blow along the first air guide path 12 to the inner end part 11. Further, the inner end part 11 is connected with a flexible first neck support part 111, and the first neck support part 111 is formed with a first air inlet gap 121 with the inner end part 11, and the first fan assembly 3 drives the airflow to blow out from the first air outlet 23 and blow along the first air guide path 12 to the first air inlet gap 121. Wherein, the first neck support part 111 can be a silica gel neck support part, a plastic neck support part, a rubber neck support part, etc. Through the above structure, when the airflow blows out from the first air outlet 23, under the guidance of the concave first air guide path 12, the airflow will blow along the first air guide path 12 to the inner end part 11, and due to the first air inlet gap 121, the airflow can be blocked in the gap, so that the user wearing the neck fan can more strongly feel the airflow of the inner end part 11, enhance the heat dissipation effect, and the flexible neck support part provides more comfortable support effect for the user, improves the user experience.

[0041] In the embodiment, the width of the first air guide path gradually decreases from the first air outlet to the inner end part; the width of the first air guide path ranges from 1-5cm; the length of the first air guide path ranges from 8-16cm; and the depth of the first air guide path ranges from 0-3cm.

[0042] In the embodiment, the first main body part 101 includes a first outer shell 1011 and a first inner shell 1012, the first air guide path 12 is arranged in the first inner shell 1012, and the first inner shell 1012 is detachably connected with the first outer shell 1011 by buckling. It can be understood that the above structure can facilitate the user to open and install the first main body part 101, and is convenient for the user to maintain.

[0043] In the embodiment, the diameter of the first air inlet 22 is in the range of 30mm-60mm, and the diameter of the first air outlet 23 is in the range of 30mm-60mm. Through the above structure, the appropriate diameter range is helpful to realize balanced air flow, so that the fan can provide sufficient airflow, thereby maintaining high cooling effect. And it is helpful to realize the rationalization of the overall structure, convenient for carrying and using.

[0044] In the embodiment, the lower end of the neck fan further protrudes a straight-cylindrical second air guide cavity 4, which includes a second air inlet 42 arranged at the lower end of the neck body 1 and a second air outlet 43 arranged opposite to the second air inlet 42, the second air outlet 43 is arranged towards the inner end 11, and the neck fan further includes a second fan assembly 5 arranged in the second air guide cavity 4, the second fan assembly 5 is used to drive the airflow to blow from the second air inlet 42 to the inner end 11 through the second air outlet 43. Through the above structure, since the second air guide cavity 4 is straight-cylindrical, the neck fan forms a straight-blowing fan in the vertical direction, so that the second fan assembly 5 can drive the airflow to blow from the second air inlet 42 to the inner end 11 through the second air outlet 43, greatly improving the blowing efficiency, and the user can directly feel the cool wind when using the neck fan, improving the overall performance of the fan. And since the second air guide cavity 4 is a straight-cylindrical cavity protruding from the neck body 1, this design enhances the overall aesthetics and design of the product, and helps to improve the wearing comfort of the neck fan, improving the overall quality and user experience of the product. It can be understood that the second fan assembly 5 is arranged in the second main body part 102.

[0045] In the embodiment, the neck fan (such as the second main body part 102) is provided with a concave second air guide path 13, the second air guide path 13 extends from the second air outlet 43 to the inner end 11, and the second fan assembly 5 drives the airflow to blow out from the second air outlet 43 and blow along the second air guide path 13 to the inner end 11. Further, the inner end 11 is connected with a flexible second neck support part 112, and the second neck support part 112 and the inner end 11 form a second air inlet gap 131, and the second fan assembly 5 drives the airflow to blow out from the second air outlet 43 and blow along the second air guide path 13 to the second air inlet gap 131. Among them, the second neck support part 112 can be a silica gel neck support part, a plastic neck support part, a rubber neck support part, etc. Through the above structure, when the airflow blows out from the second air outlet 43, under the guidance of the concave second air guide path 13, the airflow will blow along the second air guide path 13 to the inner end 11, and due to the second air inlet gap 131, the airflow can be blocked in the gap, so that the user wearing the neck fan can more strongly feel the airflow of the inner end 11, enhance the heat dissipation effect, and the flexible neck support part provides more comfortable support effect for the user, improving the user experience.

[0046] In the embodiment, the second main body part 102 includes a second outer shell 1021 and a second inner shell 1022, the second air guide path 13 is arranged in the second inner shell 1022, and the second inner shell 1022 is detachably connected with the second outer shell 1021 through buckling. It is convenient for the user to open and install the second main body part 102, and convenient for the user to maintain.

[0047] In the embodiment, the first power supply assembly 8 is located in the neck hanging body 1, and the first power supply assembly 8 is electrically connected with the first fan assembly 3 to supply power to the first fan assembly 3. The first power supply assembly 8 includes a first battery 81 and a first circuit board 82, and the first battery 81 is electrically connected with the first circuit board 82 to supply power to the first circuit board 82. The second power supply assembly 9 is located in the neck hanging body 1, and the second power supply assembly 9 is electrically connected with the second fan assembly 5 to supply power to the second fan assembly 5. The second power supply assembly 9 includes a second battery 91 and a second circuit board 92, and the second battery 91 is electrically connected with the second circuit board 92 to supply power to the second circuit board 92. Through the above structure, the first power supply assembly 8 is arranged in the neck hanging body 1, which can improve the appearance of the neck hanging fan and effectively supply power to the first fan assembly 3 to ensure the reliability of the product. The second power supply assembly 9 is arranged in the neck hanging body 1, which can improve the appearance of the neck hanging fan and effectively supply power to the second fan assembly 5 to ensure the reliability of the product.

[0048] In the embodiment, the first fan assembly 3 includes a first fan shell 31, a first motor 32 fixedly installed in the first fan shell 31, and a first fan blade 33 installed on a rotating shaft of the first motor 32. The first fan shell 31 is provided with a third air inlet 311, a first air duct 312, and a third air outlet 313. The first air inlet 22, the third air inlet 311, the first air duct 312, the third air outlet 313, the first air guiding cavity 2, and the first air outlet 23 are sequentially communicated. Through the above structure design, the first fan assembly 3 in the embodiment is provided with an independent shell, which is convenient for the separate installation and replacement of the fan.

[0049] In another embodiment, the first fan assembly 3 includes a first motor 32 and a first fan blade 33 installed on a rotating shaft of the first motor 32. The first air inlet 22 is connected with a first air inlet cover 221, and the first air inlet cover 221 is provided with a plurality of first air inlet holes 222. The first air outlet 23 is connected with a first air outlet cover 231, and the first air outlet cover 231 is provided with a plurality of first air outlet holes 232. Through the above structure, the design of the fan shell is omitted in this case, which saves cost and effectively realizes the airflow direction. The design of the first air inlet cover 221 and the first air outlet cover 231 is beneficial to prevent other sundries, such as hair, paper scraps, and other sundries, from being sucked into the fan, which is beneficial to maintain the safety of the fan.

[0050] In this embodiment, the second fan assembly 5 comprises a second fan housing 51, a second motor 52 fixedly installed in the second fan housing 51, and a second fan blade 53 installed on a rotating shaft of the second motor 52. The second fan housing 51 is provided with a fourth air inlet 511, a second air duct 512, and a fourth air outlet 513. The second air inlet 42, the fourth air inlet 511, the second air duct 512, the fourth air outlet 513, the second air guiding cavity 4, and the first air outlet 23 are sequentially communicated. Through the above structural design, the first fan assembly 3 in this embodiment is provided with an independent housing, facilitating separate installation and replacement of the fan.

[0051] In some other embodiments, the second fan assembly 5 comprises a second motor 52 and a second fan blade 53 installed on a rotating shaft of the second motor 52. The second air inlet 42 and the fourth air inlet 511 are connected with a second air inlet cover 421 provided with a plurality of second air inlet holes 422. The second air outlet 43 and the fourth air outlet 513 are connected with a second air outlet cover 431 provided with a plurality of second air outlet holes 432. Through the above structure, the design of the fan housing is omitted in this case, saving cost, and the airflow direction is also effectively achieved. The design of the second air inlet cover 421 and the second air outlet cover 431 is beneficial to prevent other sundries, such as hair, paper scraps, and other sundries from being sucked into the fan, and is beneficial to maintaining the safety of the fan.

[0052] In this embodiment, the connecting piece 103 has a mounting hole 1031, the first main body part 101 has a first connecting end 1013 connected with the connecting piece 103, the first connecting end 1013 is detachably inserted into one end of the mounting hole 1031, and the second main body part 102 has a second connecting end 1023 connected with the connecting piece 103, the second connecting end 1023 is detachably inserted into the other end of the mounting hole 1031.

[0053] Further, the first connecting end 1013 is provided with a first buckle 10131 in a concave-convex shape, the connecting piece 103 is provided with a first clamping groove 1032 matched with the first buckle 10131, the second connecting end 1023 is provided with a second buckle 10331 in a concave-convex shape, and the connecting piece 103 is provided with a second clamping groove 10231 matched with the second buckle 10331. Through the above structure, the connecting piece 103 is a flexible silica gel connecting piece. After the connecting piece 103 is bent to a certain angle, the first main body part 101 and the second main body part 102 can be easily inserted into the mounting hole 1031. The first main body part 101 is clamped and matched with the first clamping groove 1032 on the inner wall of the connecting piece 103 through the first buckle 10131 in a concave-convex shape arranged on the first connecting end 1013. The second main body part 102 is clamped and matched with the second clamping groove 10231 on the inner wall of the connecting piece 103 through the second buckle 10331 in a concave-convex shape arranged on the second connecting end 1023. Therefore, the first main body part 101 and the second main body part 102 can be conveniently installed and connected to form a complete neck-hung fan.

[0054] As shown in Figures 3-6 The connecting piece 103 can be divided into a flexible connecting part 103a, which can have at least one mounting hole 1031. The at least one mounting hole 1031 is used to extend along the extension direction D1 of the first connecting end 1013 of the first main body part 101 to the second connecting end 1023 of the second main body part 102, and the at least one mounting hole 1031 is used to be sleeved and fixed on the first connecting end 1013 and the second connecting end 1023, so that the first main body part 101 and the second main body part 102 are connected through the flexible connecting part 103a. By connecting the first main body part 101 and the second main body part 102 through the flexible connecting part 103a, a flexible connection is formed between the first main body part 101 and the second main body part 102, thereby facilitating the user to wear.

[0055] In this embodiment, the flexible connecting part 103a has one through mounting hole, i.e., one mounting hole arranged along the extension direction D1, and the two ends of the mounting hole 1031 are respectively used to sleeve and fix the first connecting end 1013 and the second connecting end 1023. One mounting hole process is simple and has flexible assembly space. However, in the alternative embodiment, the flexible connecting part 103a can also have two oppositely arranged blind holes (i.e., non-through holes), and the two blind holes are respectively used to sleeve and fix the first connecting end 1013 and the second connecting end 1023.

[0056] In an embodiment, the inner side wall of the at least one mounting hole 1031 is provided with a first anti-disengagement structure (such as a second clamping groove 1023a) and a second anti-disengagement structure (such as a second clamping groove 1023b), the first anti-disengagement structure is used for clamping connection with the first buckle 10131 on the outer surface of the first connecting end 1013, and the second anti-disengagement structure is used for clamping connection with the second buckle 10331 on the outer surface of the second connecting end 1023, at least one of the first anti-disengagement structure and the first buckle 10131 comprises a plurality of convex-concave structures arranged in sequence along the extension direction D1.

[0057] Specifically, in the embodiment, the first anti-disengagement structure comprises a plurality of second clamping grooves 1023a arranged along the extension direction, used for meshing connection with a plurality of protrusions of the first buckle 10131 arranged along the extension direction; the second anti-disengagement structure comprises a plurality of second clamping grooves 1023b arranged along the extension direction, used for meshing connection with a plurality of protrusions of the second buckle 10331 arranged along the extension direction; the first anti-disengagement structure is used for detachable connection with the first buckle 10131, and the second anti-disengagement structure is used for detachable connection with the second buckle 10331.

[0058] In an embodiment, the flexible connecting part 103a is arc-shaped and has an inner side close to the human neck and an outer side away from the human neck, the first anti-disengagement structure is arranged on the inner side wall of one end of the at least one mounting hole 1031 adjacent to the outer side; and the second anti-disengagement structure is arranged on the inner side wall of the other end of the at least one mounting hole 1031 adjacent to the outer side.

[0059] In an embodiment, the flexible connecting part 103a is further provided with a first fixing structure 103b and a second fixing structure 103c, the first fixing structure 103b and the second fixing structure 103c are respectively arranged at two ends of the flexible connecting part 103a, the first fixing structure 103b is used for connection with a third fixing structure 1013a of the first connecting end 1013, and the second fixing structure 103c is used for connection with a fourth fixing structure 1023a of the second connecting end 1023; the first fixing structure 103b is used for detachable connection with the third fixing structure 1013a, and the second fixing structure 103c is used for detachable connection with the fourth fixing structure 1023a.

[0060] In an embodiment, one of the first fixing structure 103b and the third fixing structure 1013a is a first fixing post 141, and the other is a first fixing hole 142; one of the second fixing structure 103c and the fourth fixing structure 1023a is a second fixing post 143, and the other is a second fixing hole 144; the first fixing structure 103b extends along a first tangential direction D2 perpendicular to the extending direction, and the second fixing structure extends along a second tangential direction D3 perpendicular to the extending direction.

[0061] In an embodiment, the first fixing post 141 comprises a first post body 1411 and a first hook portion 1412 connected to the first post body 1411 away from the flexible connecting portion 103a, and the outer diameter of the first hook portion 1412 is larger than that of the first post body 1411 to prevent the first fixing post 141 from being detached from the first fixing hole 142; the second fixing post 143 comprises a second post body 1431 and a second hook portion 1432 connected to the second post body 1431 away from the flexible connecting portion 103a, and the outer diameter of the second hook portion 1432 is larger than that of the second post body 1431 to prevent the second fixing post 143 from being detached from the second fixing hole 144.

[0062] In an embodiment, the first fixing hole 142 comprises a first portion 1421 corresponding to the first post body 1411 and a second portion 1422 corresponding to the first hook portion 1412, and the hole diameter of the second portion 1422 is larger than that of the first portion 1421; the second fixing hole 144 comprises a third portion 1441 corresponding to the second post body 1431 and a fourth portion 1442 corresponding to the second hook portion 1432, and the hole diameter of the fourth portion 1442 is larger than that of the third portion 1441.

[0063] In an embodiment, the connecting member 103 can further comprise at least one neck support portion (e.g., a first neck support portion 111 and a second neck support portion 112) connected to the inner side of the flexible connecting portion 103a for being close to the neck of a human body, and the at least one neck support portion is configured to form at least one air inlet gap (e.g., 121, 131) between the first main body portion 101 or the second main body portion 102, so that the air of the first main body portion 101 or the second main body portion 102 can enter the air inlet gap, thereby avoiding the situation that the neck of the human body directly contacts the first main body portion 101 or the second main body portion 102, and the air cannot be provided to the skin surface of the neck.

[0064] As shown in the foregoing, in the embodiment, the at least one neck support portion includes a first neck support portion 111 and a second neck support portion 112, the first neck support portion 111 is arranged adjacent to the first main body portion 101 and is used to form a first air inlet gap 121 with the first main body portion 101, the second neck support portion 112 is arranged adjacent to the second main body portion 102 and is used to form a second air inlet gap 131 with the second main body portion 102,

[0065] In an embodiment, the surfaces of the first neck support portion 111 and the second neck support portion 112 away from the flexible connecting portion 103a are also provided with a plurality of protrusions 103m, the plurality of protrusions 103m are used to form a gap between the at least one neck support portion and the skin of the human neck, and are also used to avoid the situation that the human neck directly contacts the first main body portion 101 or the second main body portion 102, so that the air cannot be provided to the surface of the skin of the neck.

[0066] As can be seen, the surfaces of the first neck support portion 111 and the second neck support portion 112 away from the flexible connecting portion 103a are arc surfaces, and the sizes of the plurality of protrusions 103b can gradually decrease from the middle to both ends along the vertical direction D4 perpendicular to the extension direction D1, so that a more comfortable wearing effect is achieved.

[0067] In the embodiment, the flexible connecting portion 103a, the first neck support portion 111 and the second neck support portion 112 are all flexible materials, such as the same flexible material (such as flexible silica gel material) and are integrally formed, so that a more comfortable wearing effect is achieved.

[0068] Further, the flexible connecting portion 103a includes a main body portion 103d, a first extension portion 103e and a second extension portion 103f, the main body portion 103d is provided with the at least one mounting hole 1031, the first extension portion 103e and the second extension portion 103f are respectively connected to both ends of the main body portion 103d, and the first extension portion 103e and the second extension portion 103f protrude from the main body portion 103d along the extension direction D1, the first extension portion 103e and the second extension portion 103f are respectively used to cover the inner side surfaces of the first connecting end 1013 and the second connecting end 1023 for being close to the human neck. The first fixing structure and the second fixing structure are respectively arranged in the first extension portion 103e and the second extension portion 103f, so that the first fixing structure and the second fixing structure are on the inner side close to the human neck, and the first anti-dropping structure and the second anti-dropping structure are on the outer side away from the human neck, the cooperation of the inner side and the outer side can reliably connect the first main body portion 101 and the second main body portion 102 by the connecting piece 103, and avoid the connection to be easily separated.

[0069] In the embodiment, the first air guide cavity 2 is located in the first main body part 101, and the first main body part 101 is further provided with a first mounting cavity 1014, and the first power supply assembly 8 is located in the first mounting cavity 1014; the second air guide cavity 4 is located in the second main body part 102, and the second main body part 102 is further provided with a second mounting cavity 1024, and the second power supply assembly 9 is located in the second mounting cavity 1024.

[0070] In the embodiment, the first main body part 101 is further provided with a first switch 1015, a first charging interface 1016 and a first indication module 1017, and the first switch 1015, the first charging interface 1016 and the first indication module 1017 are electrically connected with the first power supply assembly 8; the second main body part 102 is further provided with a second switch 1025, a second charging interface 1026 and a second indication module 1027, and the second switch 1025, the second charging interface 1026 and the second indication module 1027 are electrically connected with the second power supply assembly 9. Through the above structure, the first switch 1015 and the second switch 1025 are used to start or stop the hanging neck fan, the first charging interface 1016 and the second charging interface 1026 are respectively used to charge the first battery 81 and the second battery 91, and the first indication module 1017 and the second indication module 1027 can be respectively used to display that the fan is in a starting or stopping state, and can also display the fan output wind power level.

[0071] In the embodiment, as shown in Figures 7-13 The hanging neck fan further comprises a first charging control module 811, a first battery protection module 812, a first charging indication module 813, a first main control module 814 and a first voltage boosting module 815; the first charging control module 811, the first battery protection module 812, the first charging indication module 813, the first main control module 814 and the first voltage boosting module 815 can be arranged on the first circuit board 82.

[0072] The first charging interface 1016 and the first charging control module 811 are electrically connected with the first battery 81, the first charging indication module 813 is connected with the first charging control module 811, the first charging interface 1016 and the first charging control module 811 are used to charge the first battery 81, and the first charging indication module 813 is used to display the charging condition, and the first battery protection module 812 is electrically connected with the first charging control module 811 and the first battery 81 to protect the first battery 81;

[0073] The first main control module 814, the first voltage boosting module 815 and the first motor 32 are electrically connected with the first battery 81. The first switch 1015 and the first indication module 1017 are electrically connected with the first main control module 814. The first indication module 1017 is used to display the start or stop of the neck fan. It can be understood that the first indication module 1017 and the first charging indication module 813 constitute a first state indication module, which is used to display at least one of the start state, the stop state, the charging state and the output wind power level of the first fan body or the neck fan. In the embodiment, the first indication module 1017 and the first charging indication module 813 are both indication lamp modules, but in other embodiments, the first state indication module can also be one or more display screens, such as an LED display screen, a liquid crystal display screen or an electronic ink display screen.

[0074] In the embodiment, the neck fan further comprises a second charging control module 921, a second battery protection module 922, a second charging indication module 923, a second main control module 924 and a second voltage boosting module 925. The second charging control module 921, the second battery protection module 922, the second charging indication module 923, the second main control module 924 and the second voltage boosting module 925 can be arranged on the second circuit board 92.

[0075] The second charging interface 1026 and the second charging control module 921 are electrically connected with the second battery 91. The second charging indication module 923 is connected with the second charging control module 921. The second charging interface 1026 and the second charging control module 921 are used to charge the second battery 91. The second charging indication module 923 is used to display the charging condition. The second battery protection module 922 is electrically connected with the second charging control module 921 and the second battery 91 to protect the second battery 91.

[0076] The second main control module 924, the second voltage boosting module 925 and the second motor 52 are electrically connected with the second battery 91. The second switch 1025 and the second indication module 1027 are electrically connected with the second main control module 924. The second indication module 1027 is used to display the start or stop of the neck fan. It can be understood that the second indication module 1027 and the second charging indication module 923 constitute a first state indication module, which is used to display at least one of the start state, the stop state, the charging state and the output wind power level of the second fan body or the neck fan. In the embodiment, the second indication module 1027 and the second charging indication module 923 are both indication lamp modules, but in other embodiments, the second state indication module can also be one or more display screens, such as an LED display screen, a liquid crystal display screen or an electronic ink display screen.

[0077] In this embodiment, the first body part 101 is provided with a first conductive end 1018, and the second body part 102 is provided with a second conductive end 1019, the first conductive end 1018 and the second conductive end 1019 are in communication, the first switch 1015 is electrically connected with the first main control module 814 and the second main control module 924 respectively, the second switch 1025 is electrically connected with the first main control module 814 and the second main control module 924 respectively, and the first switch 1015 or the second switch 1025 is used to send the third fan working signal.

[0078] The first main control module 814 is used to receive the third fan working signal and drive the first boost module 815 to receive and raise the output voltage of the first battery 81, so as to drive the first motor 32 to work.

[0079] The second main control module 924 is used to receive the third fan working signal and drive the second boost module 925 to receive and raise the output voltage of the second battery 91, so as to drive the second motor 52 to work.

[0080] It can be understood that, as shown in Figure 14 In one embodiment, any one of the first switch 1015 and the second switch 1025 operated by the user can send the third fan working signal, so that the first motor 32 and the second motor 52 work. Specifically, the first conductive end 1018 of the first body part 101 can have a connector J1, which is used to be connected with the connector J1 of the second conductive end 1019 of the second body part 102, so as to realize the electrical connection between the first main control module 814 and the second main control module 924, and further realize that any one of the first switch 1015 and the second switch 1025 operated by the user can send the third fan working signal. Specifically, the connector J1 can have two signal terminals, but is not limited to the above.

[0081] It can be understood that, when the connector J1 of the first conductive end 1018 of the first body part 101 and the connector J1 of the second conductive end 1019 of the second body part 102 are not connected, that is, the first body part 101 and the second body part 102 are independent of each other, the first switch 1015 and the second switch 1025 can independently control the work of the two fan assemblies, and they do not affect each other.

[0082] In addition, in other embodiments, through the preset program control, the control of the two fan assemblies can be dominated by any one of the first switch 1015 and the second switch 1025 as needed. Specifically, in another embodiment, only one of the first switch 1015 and the second switch 1025 (such as the first switch) operated by the user will send the third fan working signal to make the first motor 32 and the second motor 52 work at the same time.

[0083] Specifically, as shown in Figure 13 and Figure 14 , the first switch 1015 and the second switch 1025 can include an operation switch S1, which can be a key switch. In other embodiments, as shown in Figure 15 , the first switch 1015 and the second switch 1025 can also include a stepless adjustment key P1 (such as a rotary knob or a sliding adjustment key) that can be steplessly adjusted, through which the rotation speed of the fan assembly can be controlled to control the size of the wind force. The stepless adjustment key P1 includes but is not limited to a potentiometer, an encoder, and other stepless adjustment devices with variable resistance. In an embodiment, the stepless adjustment key P1 can have multiple connection terminals and at least one adjustment pin, one of the multiple connection terminals can be grounded, and the at least one adjustment pin can be operated by the user to make the other connection terminals output corresponding stepless adjustment signals. In other embodiments, multiple stepless adjustment pins can be provided to increase the adjustment range and function. It can be understood that the stepless adjustment key P1 can enable the user to control the wind force of the neck fan according to their own needs, thereby improving the user experience.

[0084] Further, in some embodiments, the first switch 1015 or the second switch 1025 is used for user operation, such as one or more of pressing, touching, sliding, and rolling. As shown in Figure 13 , 14 , the operation switch S1 can be a press switch. Further, the operation can include a long-time operation or a short-time operation. Specifically, the long-time operation includes a continuous operation time longer than a first preset time (such as 3 seconds), and the continuous operation time of the short-time operation is within a second preset time (such as 1 second). The specific first preset time and second preset time can be set according to actual needs. For example, when the operation is a long-time operation, the first main control module 814 can control the power-on or power-off of the corresponding first fan body (or the first fan body and the second fan body); when the first fan body (or the first fan body and the second fan body) is in a power-on state and the operation is a short-time operation, the first main control module 814 can control the gear adjustment of the corresponding first fan body (or the first fan body and the second fan body).

[0085] Specifically, in one embodiment, the first main control module 814 can control the internal counting unit or the externally connected counting unit to count the signals sent by the operation switch S1 after the neck fan enters the start-up state. When the current counting number is less than the preset number N (N can be set according to actual needs, such as 6), the first main control module 814 controls the speed of the fan assembly of the first fan body (or the first fan body and the second fan body) to increase one gear according to the signal sent by the operation switch S1. When the current counting number is equal to the preset number N, the first main control module 814 controls the speed of the fan assembly of the first fan body (or the first fan body and the second fan body) to reset to the minimum gear according to the signal sent by the operation switch S1.

[0086] In another embodiment, the first main control module 814 can also control the internal judging unit or the externally connected judging unit to first judge whether the current gear of the first fan body (or the first fan body and the second fan body) is the maximum gear (i.e., whether the speed of the corresponding fan assembly is the maximum speed) when the neck fan enters the start-up state and receives the signal of the operation switch S1. If the current gear is the maximum gear, the first main control module 814 controls the current gear of the first fan body (or the first fan body and the second fan body) to jump to the minimum gear (i.e., the speed of the corresponding fan assembly jumps to the minimum speed). If the current gear is not the maximum gear, the first main control module 814 controls the current gear of the first fan body (or the first fan body and the second fan body) to increase one gear, i.e., the speed of the corresponding fan assembly increases one gear.

[0087] In the above embodiment, the speed gears of the fan assemblies of the first fan body and the second fan body can be multiple, specifically, such as six.

[0088] It can be understood that when the first fan body and the second fan body are not electrically connected, the first fan body and the second fan body are structurally identical and can work independently. When the first fan body and the second fan body are electrically connected, one of the first switch 1015 and the second switch 1025 (such as the first switch) is operated by the user, which will send a third fan working signal to make the first motor 32 and the second motor 52 work simultaneously.

[0089] In this embodiment, the first body part 101 and the second body part 102 can be regarded as two independent fans electrically connected to form a neck fan, wherein the circuit diagrams of the circuit modules contained in the two independent fans are the same.

[0090] Through the above structure, the first body part 101 and the second body part 102 are combined and spliced to form a complete U-shaped neck hanging fan, at this time the first conductive end 1018 and the second conductive end 1019 are in conductive connection, no matter whether the user presses the first switch 1015 or the second switch 1025, the third fan working signal can be sent out, at this time the first main control module 814 receives the third fan working signal, drives the first boost module 815 to receive and raise the output voltage of the first battery 81, and then drives the first motor 32 to work, the rotation of the first motor 32 can drive the first fan blade 33 to rotate, realizing the blowing effect of the first fan assembly, the second main control module 924 receives the third fan working signal, drives the second boost module 925 to receive and raise the output voltage of the second battery 91, and then drives the second motor 52 to work, the rotation of the second motor 52 can drive the second fan blade 53 to rotate, realizing the blowing effect of the second fan assembly.

[0091] It can be understood that, Figure 11 The first main control module 814 and Figure 12 The first boost module 815 and other related circuits shown can also have other changed embodiments, such as Figure 13 As shown in a changed embodiment, the boost control chip U2 of the first boost module 815 can be omitted, specifically, the first boost module 815 can include an inductor L1 and a switching element Q2, the control end of the MCU of the first main control module 814 is connected to the control end of the switching element Q2, the first conductive end of the switching element Q2 is connected to the battery BAT via the inductor L1, the second conductive end of the switching element Q2 is grounded, and the first conductive end of the switching element Q2 is connected to the first motor MG1, specifically, the first conductive end of the switching element Q2 is connected to the first motor MG1 via a diode D4. The switching of the MCU of the first main control module 814 and the switching element Q2 controls the voltage from the battery BAT to be boosted through the inductor L1, and the boosted voltage is provided to the first motor MG1 to drive the first fan blade 33 to rotate. As described above, the second main control module 924 and the second boost module 925 can also adopt the same structure principle of the circuit shown Figure 13 to provide the boosted voltage to the second motor to drive the second fan blade 53 to rotate, which will not be described here.

[0092] Embodiment two

[0093] Referring to Figures 16 to 18 , the difference between embodiment two and embodiment one is only that the first body part 101 and the second body part 102 of the neck hanging fan are disassembled to form two independent fans, the first body part 101 and the second body part 102 are two small fans that can work independently.

[0094] In the embodiment, the first main body part 101 comprises a first charging control module 811, a first battery protection module 812, a first charging indication module 813, a first main control module 814 and a first voltage boosting module 815 which are electrically connected with the first circuit board 82;

[0095] The first charging interface 1016, the first charging control module 811 and the first charging indication module 813 are electrically connected with the first battery 81, the first charging interface 1016 and the first charging control module 811 are used to charge the first battery 81, and the first charging indication module 813 is used to display the power of the first battery 81. The first battery protection module 812 is electrically connected with the first charging control module 811 and the first battery 81 to protect the first battery 81.

[0096] The first main control module 814, the first voltage boosting module 815 and the first motor 32 are electrically connected with the first battery 81. The first switch 1015 and the first indication module 1017 are electrically connected with the first main control module 814. The first switch 1015 is used to send a first fan working signal. The first main control module 814 is used to receive the first fan working signal and drive the first voltage boosting module 815 to receive and raise the output voltage of the first battery 81 to drive the first motor 32 to work. The first indication module 1017 is used to display the start or stop of the neck fan.

[0097] Through the above structure, the first charging interface 1016 is used to charge the first battery 81. The first charging control module 811 is used to control the charging of the first battery 81. When the first switch 1015 is opened, the first fan working signal is sent. The first main control module 814 is used to drive the first voltage boosting module 815 to receive and raise the output voltage of the first battery 81 to drive the first motor 32 to work when the first fan working signal is received. The first main control module 814 can also adjust the speed of the first motor 32 by controlling the output voltage of the first voltage boosting module 815.

[0098] In the embodiment, the second main body part 102 comprises a second charging control module 921, a second battery protection module 922, a second charging indication module 923, a second main control module 924 and a second voltage boosting module 925 which are electrically connected with the second circuit board 92;

[0099] The second charging interface 1026, the second charging control module 921 and the second charging indication module 923 are electrically connected with the second battery 91. The second charging interface 1026 and the second charging control module 921 are used to charge the second battery 91. The second charging indication module 923 is used to display the power of the second battery 91. The second battery protection module 922 is electrically connected with the second charging control module 921 and the second battery 91 to protect the second battery 91.

[0100] The second control module 924, the second voltage boosting module 925 and the second motor 52 are electrically connected with the second battery 91, the second switch 1025 and the second indication module 1027 are electrically connected with the second control module 924, the second switch 1025 is used to send a second fan working signal, the second control module 924 is used to receive the second fan working signal and drive the second voltage boosting module 925 to receive and raise the output voltage of the second battery 91 to drive the second motor 52 to work, and the second indication module 1027 is used to display the start or stop of the neck fan.

[0101] Through the above structure, the second charging interface 1026 is used to charge the second battery 91, the second charging control module 921 is used to control the charging of the second battery 91, the second switch 1025 is used to send a second fan working signal when the second switch 1025 is opened, and the second control module 924 is used to drive the second voltage boosting module 925 to receive and raise the output voltage of the second battery 91 to drive the second motor 52 to work when the second fan working signal is received. The second control module 924 can also adjust the speed of the second motor 52 by controlling the output voltage of the second voltage boosting module 925. The above structure design effectively realizes the effect that the neck fan can be used as an independent fan after being disassembled, brings more flexibility, and enables users to choose the appropriate use mode according to specific needs.

[0102] Embodiment three

[0103] Reference Figures 19 to 26 The third embodiment provides a neck fan. It can be understood that the above description of the first embodiment and the second embodiment can basically be applied to the neck fan of the third embodiment. The following mainly describes the key parts of the third embodiment and the different parts from the first and second embodiments.

[0104] The neck fan comprises a neck main body 1, the neck main body 1 comprises a first main body part 101, a second main body part 102, a connecting piece 103 connected between the first main body part 101 and the second main body part 102, a first fan assembly 3 arranged at one end of the first main body part 101 away from the connecting piece 103, and a second fan assembly 5 arranged at one end of the second main body part 102 away from the connecting piece 103.

[0105] The connecting piece 103 is detachably connected with the first body part 101 and the second body part 102, the first body part 101 is detachably connected with the first fan assembly 3, and the second body part 102 is detachably connected with the second fan assembly 5, so that the five parts of the neck fan are detachably connected, forming a modular design, which not only facilitates assembly, but also reduces assembly and maintenance costs, and users can also disassemble, assemble, store and DIY design, etc., improving user experience.

[0106] The first body part 101 is an arc structure, comprising a concave first air guide path 12 arranged on one side surface of the first body part 101 and extending along the extension direction of the arc structure, and the first fan assembly 3 is arranged at one end of the first body part 101 and used for blowing air towards the first air guide path 12, and the first air guide path 12 is used for guiding the air of the first fan assembly 3 to one side of the first body part 101 (i.e. one side of the user's neck) and one end of the first body part 101 away from the first fan assembly 3 (e.g. the back of the user's neck).

[0107] The second body part 102 is an arc structure, comprising a concave second air guide path 13 arranged on one side surface of the second body part 102 and extending along the extension direction of the arc structure, and the second fan assembly 5 is arranged at two ends of the second body part 102 and used for blowing air towards the second air guide path 13, and the second air guide path 13 is used for guiding the air of the second fan assembly 5 to one side of the second body part 102 (i.e. the other side of the user's neck) and one end of the second body part 102 away from the second fan assembly 5 (e.g. the back of the user's neck).

[0108] Further, the first body part 101 and the first fan assembly 3 can also be assembled into one first fan body, and the second body part 102 and the second fan assembly 5 can also be assembled into one second fan body, so that one neck fan can be split into two fan bodies for use according to user needs. It can be understood that when used as a neck fan, the fan body and the other fan body are used to be arranged on both sides of the user's neck. Splitting one neck fan into two fan bodies for use according to user needs can enrich the use scenarios, facilitate storage, and increase the use experience.

[0109] In some embodiments, the first fan body and the second fan body are independently manufactured and then assembled together through an assembly process. Through the above arrangement, the two fan bodies can also form a modular design, which not only facilitates assembly, but also reduces assembly and maintenance costs, and users can also disassemble, assemble, maintain, store, and DIY design, etc., to improve user experience.

[0110] The first fan assembly 3 includes a straight-cylindrical first fan housing 31 which is detachably connected to the neck-hanging main body 1 and located in the first accommodating cavity 15. The first fan housing 31 has a third air inlet 311 and a third air outlet 313.

[0111] Through the above structure, since the first fan housing 31 is straight-cylindrical, the neck-hanging fan forms a straight-blowing fan in the vertical direction. The first fan assembly 3 can drive airflow to blow from the third air inlet 311 to the third air outlet 313 along the first air guide path 12 to the user's neck, greatly improving the blowing efficiency. When using the neck-hanging fan, the user can more directly feel the cool wind blowing directly to the neck, improving the overall performance of the fan. Moreover, since the first fan housing 31 and the neck-hanging main body 1 can be detachably connected, they can be separately molded and assembled during production, improving production efficiency and reducing production costs. In addition, it is also convenient for storage and transportation, improving the portability of the product.

[0112] In this embodiment, the first main body part 101 of the neck-hanging main body 1 is provided with a plurality of connection clamping grooves 151 on the inner side close to the first accommodating cavity 15, and the outer wall of the first fan housing 31 is provided with a plurality of connection buckles 315 matched with the connection clamping grooves 151. The first fan housing 31 and the neck-hanging main body 1 are detachably connected through the buckles. Specifically, the connection clamping grooves 151 are symmetrically distributed on the inner side of the neck-hanging main body 1, and the number of the connection clamping grooves 151 is six groups, and the number of the connection clamping grooves 151 in each group is two. The connection buckles 315 are symmetrically arranged on the outer wall of the first fan housing 31, and the number of the connection buckles 315 is six groups, and the number of the connection buckles 315 in each group is two. Through the above structure, the user can manually install or disassemble the first fan housing 31 on the neck-hanging main body 1. The six groups of buckle matching structures ensure the firmness of the splicing, prevent the first fan housing from separating during wearing and using, and improve the safety and convenience of the neck-hanging fan.

[0113] In this embodiment, the first main body part 101 of the neck-hanging main body 1 is detachably connected with the first outer cover 16 on the outer side away from the first accommodating cavity 15. Like the first embodiment, the first main body part 101 of the neck-hanging main body is provided with a first mounting cavity 1014, and the first power supply assembly 8 is located in the first mounting cavity 1014. The first mounting cavity 1014 has an opening, and the first outer cover 16 is detachably covered with the opening.

[0114] In this embodiment, the first fan assembly 3 further comprises a first motor 32 and a first fan blade 33 mounted on a rotating shaft of the first motor 32.

[0115] The first fan housing 31 can comprise a housing body 31a, an air inlet cover 31b, a metal mesh 3111 and an air outlet cover 31c.

[0116] The first fan blade 33 and the first motor 32 are both mounted in the housing body 31a. Specifically, the housing body 31a comprises a cylindrical sidewall structure 310a, a mounting portion 310b at one end of the sidewall structure 310a, and an air guide portion 310c connected between the mounting portion 310b and the sidewall structure 310a. The first fan blade 33 and the first motor 32 are arranged in the sidewall structure 310a and located at one side of the mounting portion 310b. The first motor 32 is mounted on the mounting portion 310b.

[0117] The air guide portion 310c comprises a plurality of air guide vanes 310d arranged at intervals, for guiding the air from the first fan blade 33 in a predetermined direction. Specifically, the thickness of each air guide vane 310d can gradually increase in the direction from the first fan blade 33 to the third air outlet 313, thereby achieving better air guiding effect. The air inlet cover 31b can be annular, and the air inlet cover 31b can be sleeved on one end of the housing body 31a. Specifically, the outer side of one end of the housing body 31a can have a stepped groove 31f, and the air inlet cover 31b is sleeved and mounted in the stepped groove 31f, so that after installation, the outer side of the air inlet cover 31b is flush with the outer side of the housing body 31a. The metal mesh 3111 can be mounted on the inner side of the air inlet cover 31b.

[0118] The third air inlet 311 is arranged on the metal mesh 3111, and the third air inlet 311 comprises a plurality of air inlet holes 311a. Each air inlet hole 311a can be circular, and the diameters of the plurality of air inlet holes 311a can be the same. The diameter of each air inlet hole 311a can be in the range of 0.5mm to 4mm, which can prevent hair or other objects from being rolled into the first fan assembly 3. It can be understood that the metal mesh 3111 has a thin thickness and a light weight, which is beneficial to the miniaturization and light weight of the product. In addition, since it is a metal material, the size of the air inlet hole of the metal mesh 3111 can be set to be smaller, thereby effectively preventing foreign matter from entering the first fan assembly 3.

[0119] The third air outlet 313 comprises a plurality of air outlets 3130 arranged on the air outlet cover 31c. Specifically, the air outlet cover 31c comprises a ring wall structure 31g, a mounting structure 31h, and a plurality of air gathering ring pieces 3131. The plurality of air gathering ring pieces 3131 are connected between the ring wall structure 31g and the mounting structure 31h, and the plurality of air outlets 3130 are defined between the plurality of air gathering ring pieces 3131.

[0120] The inner side of the ring wall structure 31g is an inclined surface or an arc surface, so that the inner diameter of the ring wall structure 31g gradually decreases in the direction from the third air inlet 311 to the third air outlet 313, thereby having a pressurizing effect on the blowing air and improving the air outlet intensity. The mounting structure 31h comprises a ring-shaped mounting wall 31i, a cover plate 31j connected to the mounting wall 31i, and a mounting column 31k connected to the inner side of the cover plate 31j. The mounting column 31k is connected to the mounting portion 310b, and specifically, the mounting column 31k can be detachably inserted into the mounting hole of the mounting portion 310b, so that the air outlet cover 31c and the shell body 31a form a detachable connection. The cover plate 31j is circular and located in the middle of the plurality of air outlets 3130. The outer surface of the cover plate 31j can have a groove for converging the air outlet.

[0121] The mounting structure 31h further comprises a first alignment structure 31m, and the mounting portion 310b comprises a second alignment structure 31n. The first alignment structure 31m and the second alignment structure 31n cooperate to realize the alignment assembly of the shell body 31a and the air outlet cover 31c. The first alignment structure 31m and the second alignment structure 31n can be one, two or more. Specifically, one of the first alignment structure 31m and the second alignment structure 31n can be an alignment hole, and the other can be an alignment column matched with the alignment hole.

[0122] The metal mesh 3111 can prevent hair or debris from being sucked into the first fan shell, thereby avoiding damage to the fan assembly and reducing the wind power of the fan blowing. The air gathering ring piece 3131 can gather the air blowing to the neck of the human body, thereby improving the blowing performance.

[0123] The first body portion 101 further comprises at least one air guide piece 101h arranged in the first air guide path 12 and adjacent to the first fan assembly 3, for guiding the air of the first fan assembly 3.

[0124] In the embodiment, the number of the at least one air guide sheet 101h is two, and the two air guide sheets 101h are respectively arranged on the two sides of the first air guide path 12, and the distance between the two air guide sheets 101h gradually increases along the air outlet direction of the first air guide path 12.

[0125] In the embodiment, the first conductive through hole 152 is arranged on the inner side of the neck-hanging main body close to the first accommodating cavity 15, and the first conductive through hole 152 is used for the lead wire of the first fan assembly 3 to pass through and communicate with the first power supply assembly 8. The mounting portion 310b can have an opening 310e, and the lead wire connected to the motor can pass through the opening 310e and extend out, and then be connected to the first power supply assembly 8 through the first conductive through hole 152.

[0126] Through the above structure, when the neck-hanging fan needs to be assembled, first, the first outer cover body 16 is opened, then the lead wire of the first fan assembly 3 passes through the first conductive through hole 152 and communicates with the first power supply assembly 8 in the first mounting cavity 1014, then the first outer cover body 16 is closed, after the lead wire of the first fan assembly 3 is communicated, the first fan shell is spliced with the neck-hanging main body through the clamping of the connecting buckle 315 and the connecting clamping groove 151, and finally a straight blowing type neck-hanging fan which is conductive with the neck-hanging main body 1 and easy to install is obtained.

[0127] In the embodiment, the second main body portion 102 of the neck-hanging main body is further recessed inward on the side opposite to the first accommodating cavity 15 to form a second accommodating cavity 17; and the second fan assembly 5 is further included, the second fan assembly 5 includes a straight cylindrical second fan shell 51, the second fan shell 51 is detachably connected to the neck-hanging main body and located in the second accommodating cavity 17, the second fan shell 51 has a fourth air inlet 511 and a fourth air outlet 513, and the second fan assembly 5 is used to drive the airflow to blow from the fourth air inlet 511 to the inner end portion 11 through the fourth air outlet 513. Through the above structure, for the same reason, since the second fan shell 51 is straight cylindrical, the neck-hanging fan forms a straight blowing type fan which blows vertically, the second fan assembly can drive the airflow to blow from the fourth air inlet 511 to the inner end portion 11 through the fourth air outlet 513, greatly improving the blowing efficiency, and the user can directly feel the cool wind blowing directly to the neck when using the neck-hanging fan, improving the overall performance of the fan. And since the second fan shell 51 and the neck-hanging main body 1 can be detachably connected, they can be processed and assembled separately in the production process, improving the production efficiency, reducing the production cost, and also being convenient for storage and transportation, improving the portability of the product.

[0128] In the embodiment, the second body part 102 of the neck-hanging main body is provided with a plurality of connecting clamping grooves 151 close to the inner side of the second accommodating cavity 17, and the outer wall of the second fan shell 51 is provided with a plurality of connecting buckles 315 matched with the connecting clamping grooves 151, so that the second fan shell 51 is detachably connected with the neck-hanging main body 1 through the buckles. Specifically, the connecting clamping grooves 151 are symmetrically distributed on the inner side of the second body part 102 of the neck-hanging main body, the number of the connecting clamping grooves 151 is six groups, and the number of the connecting clamping grooves 151 in each group is two; the connecting buckles 315 are symmetrically distributed on the outer wall of the first fan shell, and the number of the connecting buckles 315 is six groups, and the number of the connecting buckles 315 in each group is two.

[0129] In the embodiment, the second body part 102 of the neck-hanging main body is provided with a plurality of connecting clamping grooves 151 close to the inner side of the second accommodating cavity 17, and the outer wall of the second fan shell 51 is provided with a plurality of connecting buckles 315 matched with the connecting clamping grooves 151, so that the second fan shell 51 is detachably connected with the neck-hanging main body 1 through the buckles. Specifically, the connecting clamping grooves 151 are symmetrically distributed on the inner side of the second body part 102 of the neck-hanging main body, the number of the connecting clamping grooves 151 is six groups, and the number of the connecting clamping grooves 151 in each group is two; the connecting buckles 315 are symmetrically distributed on the outer wall of the first fan shell, and the number of the connecting buckles 315 is six groups, and the number of the connecting buckles 315 in each group is two.

[0130] Further, the specific structure of the second fan assembly 5 can be the same as that of the first fan assembly 3, including a second motor 52 and a second fan blade 53 installed on the rotating shaft of the second motor; the second fan shell 51 can have substantially the same structure as the first fan shell 31, such as including a shell main body 31a, an air inlet cover 31b, a metal mesh 3111 and an air outlet cover 31c, wherein the fourth air inlet 511 can also include a plurality of air inlet holes 311a provided on the metal mesh 3111 of the second fan shell 51. The fourth air outlet can also include a plurality of air outlet holes 3130 provided on the air outlet cover 31c of the second fan shell 51. The specific structure of the second body part 102 and the first body part 101 can be the same, and the second body part 102 and the first body part 101 can be symmetrically arranged, and the second fan assembly 5 and the first fan assembly 3 can also be symmetrically arranged, and the specific structure of the second fan shell 51 and the second body part 102 will not be introduced again here.

[0131] In the embodiment, the second body part 102 of the neck-hanging main body is provided with a plurality of connecting clamping grooves 151 close to the inner side of the second accommodating cavity 17, and the outer wall of the second fan shell 51 is provided with a plurality of connecting buckles 315 matched with the connecting clamping grooves 151, so that the second fan shell 51 is detachably connected with the neck-hanging main body 1 through the buckles. Specifically, the connecting clamping grooves 151 are symmetrically distributed on the inner side of the second body part 102 of the neck-hanging main body, the number of the connecting clamping grooves 151 is six groups, and the number of the connecting clamping grooves 151 in each group is two; the connecting buckles 315 are symmetrically distributed on the outer wall of the first fan shell, and the number of the connecting buckles 315 is six groups, and the number of the connecting buckles 315 in each group is two.

[0132] Through the above structure, after the assembly of the first fan shell 31 is completed, the installation of the second fan shell 51 is carried out in the same way, first open the second outer cover body 18, then the lead wire of the second fan assembly 5 is passed through the second conductive through hole 171 to communicate with the second power supply assembly 9 in the second installation cavity 1024, then close the second outer cover body 18, after the lead wire of the second fan assembly 5 is communicated, the second fan shell 51 is spliced with the neck hanging main body 1 through the clamping of the connecting buckle 315 and the connecting clamping groove 151, and finally a straight blowing type neck hanging fan which is conductive with the neck hanging main body 1 and easy to install is obtained.

[0133] It can be understood that the first outer cover body 16 and the second outer cover body 18 have at least one first buckle member 160 on the inner side, and the first main body part 101 and the second main body part 102 have at least one second buckle member 1010 on the outer side, and the first buckle member 160 and the second buckle member 1010 are buckled to realize the assembly of the first outer cover body 16 and the first main body part 101 and the assembly of the second outer cover body 18 and the second main body part 102. Specifically, the number of the first buckle member 160 and the second buckle member 1010 can be multiple, such as 160a, 160b, 160c, 160d and 101a, 101b, 101c, 101d, and the structures of the multiple first buckle members 160a, 160b, 160c, 160d can be different, and the multiple second buckle members 101a, 101b, 101c, 101d are structures matched with the multiple first buckle members.

[0134] It can be understood that the first fan assembly 3 and the second fan assembly 5 are both straight blowing type fan assemblies with the air inlet and the air outlet on the same axis, wherein in the first fan assembly 3, the air inlet cover 31b, the first fan blade 33, the first motor 32, the shell main body 31a and the air outlet cover 31c are arranged in a straight line, and in the second fan assembly 5, the air inlet cover 31b, the second fan blade 53, the first motor 32, the shell main body 31a and the air outlet cover 31c are arranged in a straight line, so that the wind power of the first fan assembly 3 and the second fan assembly 5 is larger and the air outlet effect is better.

[0135] In addition, as in Embodiment One and Embodiment Two, the fan main body and the other fan main body can each have a corresponding and independent switch 1015, 1025, so that the opening and closing of the fan main body and the other fan main body are independently controlled by the corresponding switches 1015, 1025.

[0136] Further, as Figure 27As shown, in a modified embodiment of Embodiment Three, the air inlet holes 3110 of the metal partition net 311 can also be regular hexagons, and a plurality of the air inlet holes 3110 are surrounded to form a honeycomb shape, and two adjacent air inlet holes 3110 share a same surrounding wall 311a. Such a design can maximize the air inlet area of the metal partition net 311, minimize the weight and air resistance, and maximize the air inlet amount. Specifically, the width of the surrounding wall is in a range of 0.05mm-2mm.

[0137] The above is one or more embodiments provided in combination with specific contents, and it is not considered that the specific implementation of the utility model is limited to these descriptions. Any approximation, similarity or replacement of the method and structure of the utility model, or any technical deduction or replacement under the premise of the concept of the utility model, should be considered as the protection range of the utility model.

Claims

1. A neck fan, characterized in that, The hanging neck fan comprises a first fan body; the first fan body is used for hanging on one side of the neck of a user to blow air towards the user, the first fan body comprises a first fan assembly, a first switch and a first main control module, the first switch and the first fan assembly are electrically connected to the first main control module, the first switch is used for being operated by the user, and the first main control module is used for receiving a signal generated when the first switch is operated and controlling a speed gear of the first fan assembly.

2. The neck fan of claim 1, wherein, The first fan body has six speed gears.

3. The neck fan of claim 1, wherein, The hanging neck fan further comprises a second fan body, the second fan body and the first fan body are oppositely arranged and used for being arranged on two sides of the neck of the user respectively; the second fan body and the first fan body are of the same structure.

4. The neck fan of claim 3, wherein, The first switch is used for being operated by the user, and the operation comprises one or more of pressing, touch control, sliding and rolling.

5. The neck fan of claim 4, wherein, The operation comprises long-time operation or short-time operation, the long-time operation comprises continuous operation lasting more than a first preset time, the continuous operation time of the short-time operation is within a second preset time, and the first preset time is greater than the second preset time; when the operation is the long-time operation, the first main control module controls the start or shutdown of the first fan assembly; when the first fan body is in the start state and the operation is the short-time operation, the first main control module controls the adjustment of the speed of the first fan assembly.

6. The neck fan of claim 5, wherein, The first main control module is used for controlling an internal counting unit or an externally connected counting unit to count the signal emitted by the first switch after the first fan assembly enters the start state, controlling the speed of the first fan assembly of the first fan body to increase by one gear when the current counting number is less than a preset number N, and controlling the speed of the first fan assembly of the first fan body to reset to the minimum gear when the current counting number is equal to the preset number N.

7. The neck fan of claim 5, wherein, The first main control module is used for controlling an internal judging unit or an externally connected judging unit to first judge whether the current gear of the first fan assembly of the first fan body is the maximum gear after the first fan assembly enters the start state, controlling the current gear of the first fan assembly of the first fan body to jump to the minimum gear if the current gear is the maximum gear, and controlling the current gear of the first fan assembly of the first fan body to increase by one gear if the current gear is not the maximum gear.

8. The neck fan of claim 5, wherein, The first fan body further comprises a first battery, the first battery is electrically connected to the first main control module; the first fan body further comprises a first charging interface and a first charging control module, the first charging interface and the first charging control module are used for charging the first battery; the first fan body further comprises a first charging interface, and the first fan body further comprises a first state indication module arranged thereon, the first state indication module is used for displaying at least one of the start state, the shutdown state, the charging state and the speed gear of the first fan body or the hanging neck fan.

9. The neck fan of claim 5, wherein, The first fan body further comprises a first voltage boosting module, the first switch is used to send a first fan working signal, and the first main control module is used to drive the first voltage boosting module to receive and raise an output voltage of a first battery to drive the first fan assembly to work when the first fan working signal is received. The first main control module is further used to control the output voltage of the first voltage boosting module to reach the control of the gear of the first fan assembly; the first voltage boosting module comprises an inductor and a switching element, a control end of an MCU of the first main control module is connected to a control end of the switching element, a first conduction end of the switching element is connected to the first battery via the inductor, a second conduction end of the switching element is grounded, and the first conduction end of the switching element is connected to the first fan assembly. The MCU of the first main control module controls the conduction and closing of the switching element to control the voltage from the first battery to be boosted through the inductor, and the boosted voltage is provided to the first fan assembly to drive the first fan assembly to blow wind; the second fan body further comprises a second main control module, a second fan assembly, a second battery and a second switch, the second switch is used to start or stop the fan body, and the second fan body further comprises a second voltage boosting module. The second switch is used to send a second fan working signal, and the second main control module is used to drive the second voltage boosting module to receive and raise an output voltage of the second battery to drive the second fan assembly to work when the second fan working signal is received. The first main control module is further used to control the output voltage of the second voltage boosting module to reach the speed gear of the second fan assembly.

10. The neck fan of claim 9, wherein, The first fan body is provided with a first conductive end, the second fan body is provided with a second conductive end, the first conductive end and the second conductive end are in communication when the first fan body and the second fan body are connected in one body, and then the first switch is electrically connected with the first main control module and the second main control module respectively, and the second switch is electrically connected with the first main control module and the second main control module respectively, so that at least one of the first switch and the second switch can send a third fan working signal; the first main control module is used to receive the third fan working signal and drive the first voltage boosting module to raise the output voltage of the first battery to drive the first fan assembly to work, and the second main control module is used to receive the third fan working signal and drive the second voltage boosting module to raise the output voltage of the second battery to drive the second fan assembly to work.

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