CN211116730U

CN211116730U - Fan worn on neck

Info

Publication number: CN211116730U
Application number: CN202020778868.5U
Authority: CN
Inventors: 杨广; 李伟平
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Ranvoo Technology Co Ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-07-28
Anticipated expiration: 2030-05-12

Abstract

The utility model provides a fan is worn to neck, including be used for wearing at the support of human neck and set up in fan in the support, be formed with in the support with the wind channel that the fan corresponds, be equipped with on the lateral wall of support with the air outlet of wind channel intercommunication, the wind warp that the fan operation produced follow behind the wind channel the air outlet blows off, the inboard of air outlet is connected with wind-guiding portion, the one end of wind-guiding portion is connected the air outlet, the other end is connected the internal face in wind channel, wind-guiding portion certainly the one end orientation of air outlet is kept away from the one end cross sectional area of air outlet reduces gradually, wind-guiding portion be used for with wind guidance in the wind channel is directed the air outlet.

Description

Fan worn on neck

Technical Field

The utility model relates to a fan technical field, in particular to fan is worn to neck.

Background

In recent years, people are pursuing more convenient life, and various portable fans such as neck-worn fans are appearing on the market in order to meet the requirement that fans are needed for outdoor activities or other life scenes. The appearance of the neck-worn fan solves the activity limitation caused by the handheld fan, and the neck-worn fan can liberate both hands of a user no matter in use scenes such as sports, outdoor activities or offices, and can achieve the effect of blowing air anytime and anywhere without being held by hands.

The existing neck-worn fan generally comprises a support and a fan, wherein the support is used for being worn on the neck of a human body, the fan is located in the support, an air channel corresponding to the fan is arranged in the support, an air outlet communicated with the outside is formed in the side wall of the air channel, and air generated when the fan rotates enters the air channel and then is blown out of the air outlet, so that the neck of the human body can be cooled. However, the wind generated by the existing fan is dispersed after reaching the air duct, the speed of blowing out from the air outlet is slow, the wind power is small, the cooling effect is not high, and the noise is large, so that the user experience is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a neck fan capable of reducing noise and increasing wind output power.

In an embodiment, the neck-protecting device comprises a support and a fan, the support is used for being worn on the neck of a human body, the fan is arranged in the support, an air channel corresponding to the fan is formed in the support, an air outlet communicated with the air channel is formed in the side wall of the support, air generated by operation of the fan is blown out of the air outlet after passing through the air channel, an air guiding portion is connected to the inner side of the air outlet, one end of the air guiding portion is connected with the air outlet, the other end of the air guiding portion is connected with the inner wall surface of the air channel, the cross-sectional area of the air guiding portion is gradually reduced from one end of the air outlet to the end far away from.

In one embodiment, one end of the air outlet close to the neck of the human body is connected with the air guiding part.

In one embodiment, the air guiding portion is an inwardly concave arc-shaped air guiding surface.

In one embodiment, the size of the air outlet on the side close to the fan is larger than the size of the air outlet on the side far from the fan.

In one embodiment, the air outlet comprises a plurality of air outlet holes, the air outlet holes are arranged at intervals along the length direction of the support, at least part of the air outlet holes close to one side of the fan are in an oblong shape, and the length direction of the oblong air outlet holes is perpendicular to the length direction of the support.

In an embodiment, the bracket includes a flexible connection section and a housing connected to two ends of the flexible connection section, a receiving portion is disposed at one end of the housing away from the flexible connection section, the fan is disposed in the receiving portion, and a rotation center of the fan and a center of the receiving portion are eccentrically disposed.

In an embodiment, a first air deflector and an air cutting plate are respectively arranged on two sides of one end, close to the fan, of the air duct, the first air deflector extends along the length direction of the support, a guide inclined plane is arranged at one end, close to the fan, of the first air deflector, the air cutting plate is arranged along the width direction of the support, and an air outlet portion of the fan is formed between the air cutting plate and the first air deflector.

In one embodiment, the support comprises an inner side wall close to the neck of the human body, an outer side wall far away from the neck of the human body, and a top wall and a bottom wall connected between the inner side wall and the outer side wall, the air outlet is arranged on one side, close to the inner side wall, of the top wall, or the air outlet is arranged at the joint of the top wall and the inner side wall, the air cutting plate is connected with the inner side wall, the outer side wall and the top wall, one end, far away from the top wall, of the air cutting plate is folded back and extends towards the inside of the accommodating part to form a second air deflector, the tail end of the second air deflector is connected to the top wall, the fan is arranged close to the second air deflector, and the second air deflector is an; the air cutting plate, the second air deflector, the top wall, the inner side wall and the outer side wall jointly enclose to form a cavity, or the air cutting plate, the second air deflector, the top wall, the inner side wall and the outer side wall jointly form a solid polygonal cylinder.

In an embodiment, a partition is disposed in the casing, the partition extends along the length direction of the bracket and is connected to the inner side of the outer side wall, a guide inclined plane bending and extending towards the outer side wall is disposed at one end of the partition close to the fan, the first air deflector is disposed on the inner side wall, one end of the first air deflector close to the fan is connected to the bottom wall, and an outer end of the first air deflector abuts against the guide inclined plane of the partition.

In an embodiment, the fan includes a plurality of blades spaced around the rotation center, each of the blades is arc-shaped, and the bending direction of the blades enables the air outlet direction of the fan to face the air outlet.

To sum up, the utility model provides a fan is worn to neck sets up wind-guiding portion through the inboard that is close to the one end of human neck at the air outlet to guide the wind in the wind channel to the air outlet fast, accelerate the air-out speed, and then increase air-out wind-force and reduce the air-out noise. Because the air outlet wind-force that is close to fan one side is great, therefore the noise is great, the utility model discloses a size that will be close to the air outlet of fan one side sets up to be greater than the size of keeping away from the air outlet of fan one side, can effectively further reduce the air-out noise. In addition, the air cutting plate can be used for preventing wind backflow generated by the fan from rotating, noise is further reduced, the partition and the first air guide plate are arranged, the volume of the air channel can be effectively reduced, the first air guide plate and the second air guide plate can effectively guide wind generated by the fan to rapidly enter the air channel, the wind generated by the fan enters the air channel and is more concentrated, the wind power coming out of the air outlet is larger, the cooling effect is better, and the use experience of a user is improved.

Drawings

Fig. 1 is a perspective view of the neck fan of the present invention.

Fig. 2 is an exploded view of the neck fan of fig. 1.

Fig. 3 is another exploded view of the neck fan of fig. 1.

Fig. 4 is a side sectional view of the neck fan of fig. 1.

Fig. 5 is a perspective cross-sectional view of the neck fan of fig. 1.

Detailed Description

Before the embodiments are described in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The utility model discloses can be the embodiment that other modes realized. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element being one, and may include a plurality of the elements.

As shown in fig. 1-5, the present invention provides a neck fan, which is worn around the neck of a human body, and comprises a support 10 and a fan 16 disposed in the support 10, wherein the fan 16 is, for example, a turbofan. A cavity corresponding to the fan 16 is formed in the bracket 10, a partition 20 and a first air deflector 22 are arranged in the cavity, and the partition 20 and the first air deflector 22 respectively extend along the length direction of the bracket 10. In this embodiment, the bracket 10 includes a flexible connecting section 12, two housings 14 connected to two ends of the flexible connecting section 12, and a battery 18 and a circuit board (not shown) disposed in the housings 14, and two fans 16 are disposed in the two housings 14, for example, at one end of the housing 14 far from the flexible connecting section 12. The fan 16 and the battery 18 are each electrically connected to the circuit board to provide power for operation of the fan 16. In the present embodiment, since the two housings 14 have the same structure and are symmetrical to each other, only one housing 14 is taken as an example for detailed description.

In other embodiments, the support 10 may also be an integrally formed structure, or the support 10 includes a rigid connection section that is not bendable and a housing connected to two ends of the rigid connection section, or the support does not include the flexible connection section 12 and is directly formed by the housing 14, the cavity is formed in the housing 14, the two fans 16 are respectively disposed at two ends of the cavity formed by the housing 14, the partition 20 and the first air guiding plate 22 extend along the length direction of the housing 14, and two ends of the partition 20 and the first air guiding plate 22 are respectively close to the two fans 16.

In the illustrated embodiment, the housing 14 is a hollow structure, and the cross-sectional area of the housing 14 gradually increases from the end close to the flexible connecting section 12 to the end far from the flexible connecting section 12, that is, the housing 14 is a gradually expanding structure, so as to increase the overall aesthetic feeling of the neck-mounted fan. The end of the housing 14 away from the flexible connecting section 12 is formed with a receiving portion 24, in this embodiment, the receiving portion 24 is circular, so that the space inside the receiving portion 24 is circular to fit the shape of the fan 16, in other embodiments, the receiving portion 24 may be designed into other shapes as long as the inner space of the receiving portion 24 is circular. The fan 16 is disposed in the housing 24, and a rotation center of the fan 16 is eccentric from a center of the housing 24.

The cavity corresponding to the fan 16 is formed in the casing 14, the partition 20 and the first air deflector 22 are arranged in the cavity, the partition 20 is used for partitioning the cavity in the casing 14 into a first cavity and a second cavity which are not communicated with each other, and the first air deflector 22 is arranged in the second cavity so as to further partition the second cavity into the air duct 28 and a second sub-cavity which is not communicated with the air duct 28. The first cavity and the second cavity are not communicated with the air duct 28, the air duct 28 is correspondingly communicated with the fan 16, an air outlet 32 is formed in the side wall of the casing 14 and corresponds to the air duct 28, the air outlet 32 is communicated with the air duct 28 and the outside of the casing 14, and an air inlet 34 is formed in the casing 14 and corresponds to the fan 16, so that air generated by the operation of the fan 16 is blown out of the air outlet 32 through the air duct 28. Due to the double separation function of the partition 20 and the first air deflector 22 on the cavity in the shell 14, the volume of the air duct 28 can be effectively reduced, the air generated by the fan 16 is more concentrated after entering the air duct 28, the air is more concentrated, and the air force blown out from the air outlet 32 is larger, so that the user can enjoy cool air and the use experience of the user is improved.

The support 10 comprises an inner side wall 10a close to the neck of the human body, an outer side wall 10b far away from the neck of the human body, and a top wall 10c and a bottom wall 10d connected between the inner side wall and the outer side wall, wherein the bottom wall 10d is located on one side close to the neck of the human body, and the top wall 10c is located on one side far away from the neck of the human body. The inner side of the air outlet 32 is connected with an air guiding portion 26, one end of the air guiding portion 26 is connected with the air outlet 32, and the other end of the air guiding portion 26 is connected with the inner wall surface of the air duct 28, so that the air in the air duct 28 is quickly guided to the air outlet 32 and is blown out from the air outlet 32. Preferably, the air guiding portion 26 is disposed inside an end of the air outlet 32 close to the neck of the human body, and the cross-sectional area of the air guiding portion 26 gradually decreases from the end of the air outlet 32 to the end far away from the air outlet 32. In this embodiment, the air guiding portion 26 is implemented as an arc-shaped air guiding surface that is concave toward the inner wall surface of the air duct 28, and the cross-sectional area of the arc-shaped air guiding surface gradually decreases from one end of the air outlet 32 to the end away from the air outlet 32. In other embodiments, the air guiding portion 26 may be implemented in other structures, which is not limited by the present invention as long as it has the function of guiding the air in the air duct 28 to the air outlet 32; in other embodiments, the air guiding portions 26 may be connected to the inner sides of the two ends of the air outlet 32.

The air outlet 32 may be disposed on a side of the top wall 10c close to the inner side wall 10a, or may be disposed at a connection position of the top wall 10c and the inner side wall 10 a. In the present embodiment, the outlet 32 is disposed on the top wall 10c near the inner side wall 10a, and therefore, the air guiding portion 26 may also be understood as being formed inside the end of the outlet 32 near the inner side wall 10 a.

In the illustrated embodiment, the outlet vents 32 are disposed in the housing 14 in the area between the fan 16 and the flexible connecting section 12. The size of the air outlet 32 close to one side of the fan 16 is larger than that of the air outlet 32 far away from one side of the fan 16, so that the air outlet noise can be effectively reduced. In this embodiment, the air outlet 32 includes a plurality of air outlets, and a plurality of air outlets are arranged at intervals along the length direction of the bracket 10, and the size of the air outlet close to one side of the fan 16 is larger than the size of the air outlet far from one side of the fan 16. The air outlet holes can be designed into an oblong shape which is matched with the air guide path of the air guide part 26, and the length direction of the oblong air outlet holes is vertical to the length direction of the support 10, so that the air outlet speed can be further increased. In some embodiments, only the outlet opening on the side close to the fan 16 may be designed to be oblong. It should be understood that in other embodiments, the outlet 32 may be configured as an elongated outlet having a dimension closer to the fan 16 that is larger than a dimension farther from the fan 16.

In the illustrated embodiment, the housing 14 includes an inner shell 36 and an outer shell 38 that snap together, with the inner shell 36 and the outer shell 38 forming a cavity of the housing 14 therebetween. Therefore, the outer sidewall 10b of the rack 10 is herein an outer sidewall of the outer shell 38, the inner sidewall 10a of the rack 10 is herein an inner sidewall of the inner shell 36, the top wall 10c of the rack 10 is herein a top wall of the inner shell 36 and the outer shell 38, and the bottom wall 10d of the rack 10 is herein a bottom wall of the inner shell 36 and the outer shell 38.

More specifically, the partition 20 is connected to the inner side of the outer side wall 10b of the bracket 10, that is, connected to the inner side wall of the outer casing 38, and the partition 20 extends in the length direction and the width direction of the casing 14, that is, the plate surface of the partition 20 extends in the width direction of the casing 14, so that a first cavity is formed between the outer side surface of the partition 20 and the outer casing 38, and a second cavity is formed between the inner side surface of the partition 20 and the inner casing 36, that is, the first cavity and the second cavity are spaced apart from each other in the thickness direction of the casing 14. The partition 20 is fixedly attached to the inner side wall of the housing 38, for example, by means of a snap or screw lock.

The two sides of the first air guiding plate 22 are respectively connected to the inner side wall of the casing 14 and the inner side surface of the partition 20, and the first air guiding plate 22 extends along the length direction and the thickness direction of the casing 14, that is, the plate surface of the first air guiding plate 22 extends along the thickness direction of the casing 14. In this embodiment, one side of the first wind deflector 22 is integrally connected to the inner sidewall of the inner casing 36, the other side of the first wind deflector 22 is tightly abutted to the sidewall of the partition 20, and one end of the first wind deflector 22 close to the fan 16 is connected to the bottom wall 10d, so as to partition the second cavity into the wind channel 28 and the second sub-cavity which are distributed at intervals along the width direction of the casing 14.

In the illustrated embodiment, the partition 20 and the first air guiding plate 22 are both arc-shaped plate-shaped and adapted to the extending shape of the casing 14, and the ends of the partition 20 and the first air guiding plate 22 close to the fan 16 are both designed to be smooth guiding slopes, and the guiding slopes of the partition 20 extend toward the outer side wall 10b in a bending manner. Due to the design, wind generated by the fan 16 can flow into the air duct 28 more smoothly, and noise generated by the wind striking the first wind deflector 22 and the partition 20 is effectively reduced. When the air conditioner is installed, the outer end of the first air guiding plate 22 abuts against the guiding inclined plane of the partition 20.

The top side of the air duct 28 close to one end of the fan 16 is further provided with a wind cutting plate 30, the wind cutting plate 30 is connected with the inner side wall 10a, the outer side wall 10b and the top wall 10c, for example, the wind cutting plate 30 is integrally formed by extending the inner side wall 10a and the top wall 10c, the outer side end of the wind cutting plate 30 is connected with the outer side wall 10b in an abutting mode, and the wind cutting plate 30 is arranged along the width direction of the support 10 and can be used for preventing wind from flowing back and rotating and reducing noise. The end of the wind cutting plate 30 away from the top wall 10c is folded back and extended toward the receiving portion 24 to form a second wind guiding plate 31, which are integrally formed, for example, and the end of the second wind guiding plate 31 is connected to the top wall 10 c. Compared with the first air deflector 22 and the second air deflector 31, the fan 16 is disposed closer to the second air deflector 31, and the second air deflector 31 is designed as an arc-shaped plate surrounding the periphery of the fan 16, so that the second air deflector 31 is adapted to the rotating circular track of the fan 16, and the air is discharged from the fan 16. The tail end of the air cutting plate 30 and the tail end of the first air deflector 22 jointly form an air outlet portion 29 of the fan 16, the air outlet portion 29 is opposite to the air outlet 32, and air generated by the fan 16 enters the air channel 28 from the air outlet portion 29. More specifically, the fan 16 includes a plurality of blades 16a disposed around the rotation center, each blade 16a is arc-shaped, and the bending direction of each blade 16a enables the air outlet direction of the fan 16 (i.e., the flowing direction of the air blown by the fan 16) to face the air outlet 32, as shown in fig. 4 and 5, the blades 16a of the fan 16 are arranged in a curved manner in a counterclockwise direction, and the fan 16 rotates in the counterclockwise direction. The air generated by the fan 16 flows toward the air outlet 32 through the air outlet portion 29, then directly flows to the air outlet 32 under the guiding action of the first air deflector 22 and the guiding inclined plane of the separator 20, and finally quickly flows out of the air outlet 32 under the guiding action of the air guiding portion 26.

In the illustrated embodiment, the air-cutting plate 30, the second air-guiding plate 31, the top wall 10c, the inner side wall 10a and the outer side wall 10b together enclose a cavity, so that the air generated by the fan 16 can only enter the air duct 28 from the air outlet portion 29 and then enter the air outlet 32 through the air-guiding portion 26, thereby preventing the air from entering the air outlet 32 from the side wing of the air outlet 32 to generate a large noise, and the formed cavity can also absorb the noise generated by the impact of the air on the second air-guiding plate 31. In other embodiments, the wind-cutting plate 30, the second wind-guiding plate 31, the top wall 10c, the inner sidewall 10a and the outer sidewall 10b may also form a solid polygonal cylinder, such as a triangular cylinder.

The wire guide groove 33 is formed in the inner side wall of the accommodating portion 24, the wire guide groove 33 is used for accommodating a wire fixedly connected with the fan 16, the wire guide groove 33 extends from the shaft portion of the fan 16 to the second air guiding plate 31 and penetrates through the second air guiding plate 31 to form a notch 35, a clamping block 37 matched with the notch 35 is arranged on the inner side of the outer side wall 10b of the support 10 corresponding to the notch 35, and during installation, the clamping block 37 is clamped into the notch 35 to seal the cavity and prevent wind from entering the cavity.

The battery 18 and the circuit board may be disposed in the first cavity or the second sub-cavity, so that electronic components such as the battery 18 and the circuit board are separated from the air duct 28, the air outlet of the fan 16 is prevented from being affected, and the structure is compact. In the illustrated embodiment, the batteries 18 are provided in two, the two batteries 18 being disposed within first cavities of the two housings 14, respectively, and the circuit board being disposable within the first cavity of one of the housings 14.

The air inlet 34 may be disposed on an inner sidewall and/or an outer sidewall of the receiving portion 24 corresponding to the position of the fan 16, and the total area of the air outlet 32 is larger than the total area of the air inlet 34, so that the wind force from the air outlet 32 is larger and the wind noise is smaller. In this embodiment, the inner side wall and the outer side wall of the receiving portion 24 corresponding to the position of the fan 16, that is, the inner casing 36 and the outer casing 38 are both provided with the air inlet 34, and in other embodiments, the air inlet 34 may be only provided on the inner side wall or the outer side wall of the receiving portion 24 corresponding to the position of the fan 16. In the illustrated embodiment, the air inlet 34 on the outer side wall of the housing 38 is a ring-shaped grid structure, and the protective cover 42 is further disposed at the air inlet 34, and the protective cover 42 can be connected to the grid structure of the air inlet 34 by, for example, a snap-fit connection, so as to cover the air inlet 34 and form a gap with the air inlet 34, so that the external air can enter the housing 14 through the air inlet 34 from the gap. The protective cover 42 may be made of a different metal material than the housing 14, and the protective cover 42 is disposed to prevent impurities, such as hair, from falling into the fan 16 through the air inlet 34 to affect the usability of the fan 16, and to make the appearance of the product more beautiful.

In the illustrated embodiment, a switch 44 is also provided on an exterior side wall of the housing 38, the switch 44 being electrically connected to the circuit board for controlling the start and stop of the fan 16. In this embodiment, the switch 44 is a button switch, a mounting hole 46 is formed on an outer side wall of the housing 38, and the switch 44 is mounted in the mounting hole 46 and protrudes out of an outer side surface of the housing 38 for a user to press.

The fan 16 is mounted in the housing 24. Specifically, the central positions of the air inlets 34 on the inner casing 36 and the outer casing 38 are provided with shaft rods facing into the receiving portion 24, the shaft rods can be connected in a sleeved mode, and the elbows of the fan 16 are mounted on the shaft rods positioned on the outer side.

In this embodiment, the flexible connection section 12 includes a bending fixed-shape member 48 and a soft rubber sleeve 50 covering the bending fixed-shape member 48, two ends of the bending fixed-shape member 48 are further respectively sleeved with a metal sleeve 52, and the metal sleeve 52 is covered in the soft rubber sleeve 50. When the flexible connecting section 12 is connected with the casing 14, the outer surface of the soft rubber sleeve 50 is smoothly transited and connected with the outer surface of the casing 14. The metal sleeves 52 are respectively sleeved at the two ends of the bending and shaping piece 48, so that the bending deformation of the two ends of the flexible connecting section 12 can be effectively prevented, and the connection gap at the connection part of the two ends of the flexible connecting section 12 and the shell 14 is prevented from being enlarged.

The flexible connecting section 12 can enable the neck fan 10 to adjust the air outlet direction of the air outlet 32 by bending and twisting, so that the air coming out of the air outlet 32 can blow to different parts of the neck or face of a human body. The bending shape-fixing piece 48 can be in any shape and fixed in the shape through bending, twisting and other actions, and the shape of the soft rubber sleeve 50 can be changed along with the change of any bending shape of the bending shape-fixing piece 48. The bending shape-defining member 48 may be a metal hose, a coil, or a shape-defining steel wire, etc. which can make the flexible connecting section 12 have a bending memory function, and can be shaped in the shape after bending. The soft rubber sleeve 50 can be made of soft rubber materials such as TPU soft rubber and the like.

The two ends of the flexible connecting section 12 are respectively connected with the shell 14 in a locking way. More specifically, the two ends of the soft rubber sleeve 50 are respectively provided with a connecting portion 54 for extending into the connecting end of the housing 14, the inner side wall of the outer shell 38 is provided with a fixing seat 56, the fixing seat 56 is provided with a screw hole, and during installation, the portion of the bending and shaping member 48 extending out of the metal sleeve 52 and the connecting portion 54 penetrates into the connecting end of the housing 14 and is locked and connected with the fixing seat 56 through a fixing member 58 by a screw 60. The fixing member 58 is a fixing plate structure, the fixing member 58 is arched towards one side to form a groove, screw holes are formed at two ends of the fixing member 58, the fixing member 58 is aligned with the fixing seat 56 to abut during installation, so that one side of the bending and shaping member 48 is accommodated in the recess of the fixing seat 56, the other side of the bending and shaping member is accommodated in the groove of the fixing member 58, the fixing member 58 is connected to the screw holes of the fixing seat 56 in a locking manner by a screw 60 penetrating through the screw holes of the fixing member 58, so that the fixing member 58 is connected to the fixing seat 56 in a.

Two positioning holes 62 are formed in the connecting portion 54, two positioning posts 64 are formed on the inner sidewall of the outer shell 38 corresponding to the positioning holes 62, screw holes are formed in the positioning posts 64, two through holes 66 are formed on the inner shell 36 corresponding to the positioning holes 62, and screws 68 are sequentially inserted through the through holes 66 and the positioning holes 62 and then locked to the positioning posts 64, so that the shell 14 and the flexible connecting section 12 are locked. In the illustrated embodiment, the neck fan 10 further includes a cover 70, a mounting groove 72 is formed on an inner sidewall of the inner shell 36 corresponding to a region of the through hole 66, for example, a connecting end portion of the inner shell 36, a head portion of the screw 68 is located in the mounting groove 72 after being mounted in the through hole 66, and the cover 70 is snap-connected to the mounting groove 72 to shield the screw 68 from being exposed, so that the appearance of the product is more beautiful.

The double locking mechanism of the locking connection between the flexible connecting section 12 and the outer shell 38 and the locking connection between the housing 14 and the flexible connecting section 12 makes the connection between the flexible connecting section 12 and the housing 14 more stable, so that the neck fan 10 has a firm structure.

In the above embodiment, the neck fan 10 includes two shells 14, in other embodiments, only one shell 14 may be provided, two ends of the flexible connecting section 12 are respectively connected to two sides of the shell 14, so as to form a complete ring shape, a fan 16 is provided in the shell 14, the side wall of the shell 14 is provided with an air outlet and an air inlet corresponding to the fan 16, and air generated during operation of the fan cools a human body.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A neck-worn fan is characterized by comprising a support and a fan, wherein the support is used for being worn on the neck of a human body, the fan is arranged in the support, an air channel corresponding to the fan is formed in the support, an air outlet communicated with the air channel is formed in the side wall of the support, air generated by the operation of the fan is blown out of the air outlet after passing through the air channel, an air guide portion is connected to the inner side of the air outlet, one end of the air guide portion is connected with the air outlet, the other end of the air guide portion is connected with the inner wall surface of the air channel, the cross-sectional area of one end, facing away from the air outlet, of the air guide portion is gradually reduced, and the air guide portion is used.

2. The neck fan as claimed in claim 1, wherein the air guiding part is connected to an end of the air outlet close to the neck of the human body.

3. The neck fan as claimed in claim 2, wherein the air guide portion is an inwardly concave arc-shaped air guide surface.

4. The neck worn fan of any one of claims 1-3, wherein the outlet is larger on a side proximate the fan than on a side distal from the fan.

5. The neck fan as claimed in claim 4, wherein the outlet comprises a plurality of outlet holes, the plurality of outlet holes are spaced along the length of the bracket, at least a portion of the outlet holes near one side of the fan are oblong, and the length of the oblong outlet holes is perpendicular to the length of the bracket.

6. The neck fan as claimed in any one of claims 1-3, wherein the support comprises a flexible connecting section and a housing connected to two ends of the flexible connecting section, a receiving portion is provided at one end of the housing away from the flexible connecting section, the fan is disposed in the receiving portion, and the rotation center of the fan is eccentric to the center of the receiving portion.

7. The neck fan as claimed in claim 6, wherein a first wind guide plate and a wind cutting plate are respectively disposed at two sides of the wind channel near one end of the fan, the first wind guide plate extends along the length direction of the bracket, a guide inclined surface is disposed at one end of the first wind guide plate near the fan, the wind cutting plate is disposed along the width direction of the bracket, and a wind outlet portion of the fan is formed between the wind cutting plate and the first wind guide plate.

8. The neck fan as claimed in claim 7, wherein the bracket includes an inner sidewall close to the neck of the human body, an outer sidewall far from the neck of the human body, and a top wall and a bottom wall connected between the inner sidewall and the outer sidewall, the air outlet is disposed on the top wall at a side close to the inner sidewall, or the air outlet is disposed at a connection position of the top wall and the inner sidewall, the air cutting plate is connected to the inner sidewall, the outer sidewall and the top wall, one end of the air cutting plate far from the top wall is folded back and extended towards the receiving portion to form a second air guiding plate, a terminal end of the second air guiding plate is connected to the top wall, the fan is disposed close to the second air guiding plate, and the second air guiding plate is an arc-shaped plate surrounding the periphery of the fan;

the air cutting plate, the second air deflector, the top wall, the inner side wall and the outer side wall jointly enclose to form a cavity, or the air cutting plate, the second air deflector, the top wall, the inner side wall and the outer side wall jointly form a solid polygonal cylinder.

9. The neck fan as claimed in claim 8, wherein a partition is provided in the housing, the partition extends along the length direction of the bracket and is connected to the inner side of the outer sidewall, a guiding inclined plane bending and extending toward the outer sidewall is provided at one end of the partition close to the fan, the first wind deflector is provided on the inner sidewall, one end of the first wind deflector close to the fan is connected to the bottom wall, and the outer end of the first wind deflector abuts against the guiding inclined plane of the partition.

10. The neck fan as claimed in claim 6, wherein the fan includes a plurality of blades spaced around the rotation center, each of the blades is arc-shaped, and the bending direction of the blades is such that the air outlet direction of the fan faces the air outlet.