Wearable fan

Abstract

This utility model relates to a wearable fan, including a fan assembly and a hanging device. The fan assembly includes a mounting base, a faceplate, a fan assembly, and a power module. The faceplate has an air outlet on its side and is rotatably fitted to the mounting base to adjust the orientation of the air outlet. At least one of the faceplate and the mounting base has an air inlet. The fan assembly is connected to the mounting base and is covered by the faceplate. The power module is located on the mounting base and is used to supply power to the fan assembly. The hanging device is connected to the mounting base and is used to hang the wearable fan on an external support. During use, the user can hang the wearable fan on an external support such as a collar or neck using the hanging device, and adjust the orientation of the air outlet by rotating the faceplate, for example, so that the air outlet faces the neck or face, thus eliminating the need to hold it by hand like a handheld fan, improving the convenience of use.

Description

Technical Field

[0001] This utility model relates to the field of portable fan technology, and in particular to a wearable fan. Background Technology

[0002] Handheld fans offer relatively good portability and cooling performance, and with advancements in battery technology, their battery life is continuously improving, making them increasingly popular among consumers for outdoor and travel-related uses. However, the convenience of using handheld fans still needs improvement, as they generally require holding them in one's hand. Utility Model Content

[0003] This utility model provides a wearable fan that improves ease of use.

[0004] A wearable fan, comprising:

[0005] A fan assembly includes a mounting base, a faceplate, a fan assembly, and a power module. The faceplate has an air outlet on its side. The faceplate is rotatably fitted to the mounting base to adjust the orientation of the air outlet. At least one of the faceplate and the mounting base has an air inlet. The fan assembly is connected to the mounting base, and the faceplate covers the fan assembly. The power module is located on the mounting base and supplies power to the fan assembly.

[0006] A hanging device is attached to the mounting base and is used to hang the wearable fan on an external support.

[0007] In one embodiment, the mounting base includes a base and a mounting plate fixedly connected to the base, the hanging member is connected to the base, the cover is rotatably fitted to the mounting plate and surrounds the mounting plate to form an air cavity, and the air outlet communicates with the air cavity; the fan assembly includes an impeller housed in the air cavity, the mounting plate has a first air inlet, and the mounting plate and the base form an air intake channel communicating with the first air inlet, and the air outlet is arranged radially at a distance from the impeller.

[0008] In one embodiment, at least a portion of the mounting plate is spaced apart from the base and forms the air intake channel extending circumferentially along the mounting base.

[0009] In one embodiment, the base includes a bottom shell and a cover plate connected to the bottom shell, the hanging member being connected to at least one of the cover plate and the bottom shell; the bottom shell and the cover plate enclose a receiving cavity, the power module being housed in the receiving cavity; the mounting plate is detachably connected to the cover plate, and at least a portion of the mounting plate is spaced apart from the cover plate in the axial direction of the impeller to form the air intake channel exposed to the circumference of the wearable fan.

[0010] In one embodiment, the mounting plate has a circumferentially extending groove around the impeller and a plurality of slots distributed in the groove and spaced apart circumferentially around the impeller; the cover has a locking point on the side facing the mounting plate, the locking point slidingly engaging with the groove and moving in and out of the slot during the rotation of the cover relative to the mounting plate.

[0011] In one embodiment, the cover includes a cover body and an air guide plate that is engaged and fixed to the inside of the cover body, the air guide plate having the locking point.

[0012] In one embodiment, the air guide plate has an integrally formed protrusion and an arc-shaped plate body. The protrusion includes an integrally formed deformable arm and a connecting part. The connecting part protrudes from the inner side of the arc-shaped plate body toward the center of the impeller. One end of the deformable arm is connected to the protrusion, and the other end has the locking point. The connecting part has a clearance groove extending circumferentially along the deformable arm.

[0013] In one embodiment, the cover has extension plates protruding from the inside of the cover body at both ends of the air outlet in the circumferential direction of the cover. The extension plates are integrally formed with the cover body. The air guide plate has recessed areas at both ends that correspond one-to-one with the two extension plates. The extension plates overlap the recessed areas.

[0014] In one embodiment, the inner side of the cover has two or more protrusions spaced apart along the circumference of the cover, the mounting plate has a circumferentially extending guide groove, the mounting plate is embedded in the cover, and the protrusions slide in the guide groove to achieve rotational engagement between the cover and the mounting plate.

[0015] In one embodiment, the face cover includes a cover body and a decorative cover that is snapped onto the cover body. In the axial direction of the impeller, the decorative cover is located at the end of the face cover away from the mounting base, and the decorative cover and the cover body form a second air inlet communicating with the air cavity. The first air inlet and the second air inlet are distributed on opposite sides of the axial direction of the impeller.

[0016] The wearable fan described above includes a fan assembly and a mounting bracket. The fan assembly includes a mounting base, a faceplate, a fan assembly, and a power module. The faceplate has an air outlet on its side and rotates to engage with the mounting base to adjust the orientation of the air outlet. At least one of the faceplate and the mounting base has an air inlet. The fan assembly is connected to the mounting base and is covered by the faceplate. The power module is located on the mounting base and supplies power to the fan assembly. The mounting bracket is connected to the mounting base and is used to hang the wearable fan on an external support. During use, the user can hang the wearable fan on an external support such as a collar or neck using the mounting bracket, and adjust the orientation of the air outlet by rotating the faceplate, for example, so that the air outlet faces the neck or face, thus eliminating the need to hold it by hand like a handheld fan, improving ease of use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a wearable fan according to the first embodiment;

[0019] Figure 2 for Figure 1 Side view of the wearable fan shown;

[0020] Figure 3 for Figure 1 An exploded view of the wearable fan shown.

[0021] Figure 4 for Figure 3 An exploded view of the wearable fan from another perspective;

[0022] Figure 5 for Figure 1 A cross-sectional view of the wearable fan shown;

[0023] Figure 6 for Figure 5 A magnified view of point A on the wearable fan shown;

[0024] Figure 7 This is a schematic diagram of the fan assembly and mounting plate of the wearable fan according to the first embodiment;

[0025] Figure 8 for Figure 7 The rear view of the fan assembly and mounting plate shown is shown after assembly.

[0026] Figure 9 This is a schematic diagram of the faceplate of the wearable fan according to the first embodiment;

[0027] Figure 10 for Figure 9 An exploded view of the faceplate of the wearable fan shown.

[0028] Figure 11 This is a schematic diagram of a wearable fan according to the second embodiment;

[0029] Figure 12 for Figure 11 A schematic diagram of another perspective of the wearable fan shown;

[0030] Figure 13 for Figure 11 An exploded view of the wearable fan shown.

[0031] Figure 14 This is a schematic diagram of a wearable fan according to a third embodiment;

[0032] Figure 15 for Figure 14 An exploded view of the wearable fan shown.

[0033] Figure 16 This is a schematic diagram of another wearable fan according to the third embodiment;

[0034] Figure 17 for Figure 16 The image shown is an exploded view of a wearable fan. Detailed Implementation

[0035] The following detailed description of preferred embodiments represents the preferred mode for implementing this invention. This description is not intended to be limiting; it is provided to illustrate the general principles of the invention.

[0036] It should be understood that, for ease of understanding of this utility model, the terms "installation," "connection," "coupling," and "installation" in the following description refer to the connection relationships shown in the drawings. For example, "connection" can refer to a permanent connection or a detachable connection. Furthermore, "connection" can also refer to a direct connection or an indirect connection, or a connection via other auxiliary components. Therefore, the above terms should not be construed as limiting the actual connections of the various elements of this utility model.

[0037] It should be understood that the terms "length," "width," "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "upper," "lower," "external," and "internal" refer to the orientation or positioning relationship in the accompanying drawings to facilitate understanding of the present invention, and do not limit the actual position or orientation of the present invention. Therefore, the above terms should not be construed as limiting the actual position of the components of the present invention.

[0038] It should be understood that the terms "first," "second," "an," "a," and "one" in the following description refer to "at least one" or "one or more" in the embodiments. In particular, the term "a" may refer to "one" in one embodiment and "more than one" in another embodiment. Therefore, the above terms should not be construed as limiting the actual number of elements of the present invention.

[0039] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0040] First Embodiment

[0041] refer to Figure 1 and Figure 2 This application discloses a wearable fan 1000, which has a relatively small size, is easy to carry, and can be hung on the user's collar, backpack shoulder strap, or chest pocket to dissipate heat. Of course, in some embodiments, the wearable fan 1000 can also be clipped to the cuff, belt, or other positions to dissipate heat, thereby expanding the usage scenarios.

[0042] Combination Figure 3 and Figure 4The wearable fan 1000 includes a fan assembly 10 and a mounting bracket 20. The fan assembly 10 includes a mounting base 100, a faceplate 300, a fan assembly 400, and a power module 500. The mounting base 100 is approximately ellipsoidal in shape. One end of the mounting bracket 20 is connected to the mounting base 100, and the other end of the mounting bracket 20 can open relative to the mounting base 100 to clamp the wearable fan 1000 to an external support such as a collar or backpack strap. The end of the mounting bracket 20 connected to the mounting base 100 can be bent and can protrude circumferentially from the mounting base 100. The other end of the mounting bracket 20 can be considered a free end. During use, the user can squeeze a collar or backpack strap between the free end of the hanging member 20 and the mounting base 100, increasing the gap between them. This allows the hanging member 20 to open relative to the mounting base 100, and the deformation of the bent portion of the hanging member 20 can accumulate elastic potential energy. In other words, when a thick support enters the space between the hanging member 20 and the mounting base 100, it causes the bent portion of the hanging member 20 to undergo elastic deformation. The restoring force of this elastic deformation causes the free end of the hanging member 20 to tend to retract towards the mounting base 100, thus reliably holding the collar or backpack strap between the hanging member 20 and the mounting base 100, preventing the wearable fan 1000 from easily falling off.

[0043] The faceplate 300 has an air outlet 301 on its side. The air outlet 301 may be elongated and slotted, and multiple outlets may be spaced apart axially along the wearable fan 1000. The faceplate 300 is rotatably fitted to the mounting base 100 to adjust the orientation of the air outlet 301, and at least one of the faceplate 300 and the mounting base 100 has an air inlet 10a. In one embodiment, the faceplate 300 has an air inlet 10a. In another embodiment, the mounting base 100 has an air inlet 10a. In other embodiments, the faceplate 300 and the mounting base 100 each have an air inlet 10a.

[0044] A fan assembly 400 is connected to a mounting base 100, and a cover 300 covers the fan assembly 400. The fan assembly 400 may include an impeller 410 and a driver 420. The impeller 410 is housed between the cover 300 and the mounting base 100 and is linked to the output of the driver 420, which is fixed to the mounting base 100. The driver 420 may be a motor. A power module 500 is located in the mounting base 100 and supplies power to the driver 420 of the fan assembly 400. After the driver 420 is started, its output drives the impeller 410 to rotate relative to the mounting base 100, thereby guiding outside air in from the air inlet 10a and out from the air outlet 301, thus dissipating heat for the user. In some embodiments, the power module 500 includes a lithium battery that can be repeatedly charged and discharged, and with advancements in battery technology, its size is shrinking while its range is steadily increasing.

[0045] The fan assembly 10 may include a circuit board 600 disposed on the mounting base 100, which is electrically connected to the power module 500 and the driver 420. The circuit board 600 enables the driver 420 to be electrically connected to the power module 500, allowing the power module 500 to supply power to the fan assembly 400. The circuit board 600 may integrate the control circuitry and power management unit of the driver 420. The fan assembly 10 may also include buttons and a charging interface exposed on the mounting base 100. The buttons correspond to trigger structures such as dome switches on the circuit board 600 for starting and stopping the driver 420, and the charging interface is used to charge the power module 500. Alternatively, in other embodiments, the buttons may be virtual buttons, such as those implemented via a touchpad or touchscreen.

[0046] The side of the cover 300 can be more clearly defined by using the axial direction of the impeller 410 as a reference. Figure 3 , Figure 4 In the illustrated embodiment, the side surface of the faceplate 300 is approximately cylindrical and extends around the axial direction of the impeller 410, or in other words, the side surface of the faceplate 300 extends circumferentially along the impeller 410, and the air outlet 301 is located on the side surface of the faceplate 300. When the wearable fan 1000 is clamped to a support such as a collar or backpack strap, the axial direction of the impeller 410 is nearly perpendicular to the clamped part of the support, and the air outlet 301 can be directed towards the user's neck or face, thereby providing better heat dissipation for the user.

[0047] The wearable fan 1000 includes a fan assembly 10 and a mounting bracket 20. The fan assembly 10 includes a mounting base 100, a face cover 300, a fan assembly 400, and a power module 500. One end of the mounting bracket 20 is connected to the mounting base 100, and the other end of the mounting bracket 20 can open relative to the mounting base 100 to clamp the wearable fan 1000 to an external support. The face cover 300 has an air outlet 301 on its side. The face cover 300 is rotatably fitted to the mounting base 100 to adjust the orientation of the air outlet 301. At least one of the face cover 300 and the mounting base 100 is provided with an air inlet 10a. The fan assembly 400 is connected to the mounting base 100, and the face cover 300 covers the fan assembly 400. The power module 500 is located on the mounting base 100 and is used to supply power to the fan assembly 400. During use, users can hang the wearable fan 1000 on external supports such as collars, backpack straps, or chest pockets using the hanging device 20. By rotating the faceplate 300, users can adjust the orientation of the air outlet 301, for example, so that the air outlet 301 faces the neck or face. This eliminates the need to hold the fan in the hand as with a handheld fan, improving ease of use. The flexible adjustment of the orientation of the air outlet 301 further enhances the ease of use.

[0048] Continue to refer to Figure 3 and Figure 4 The mounting base 100 may include a base 110 and a mounting plate 120 fixedly connected to the base 110. The mounting plate 120 may be disc-shaped. A hanging member 20 is connected to the base 110, and the free end of the hanging member 20 extends along the side of the base 110 away from the face cover 300. Simultaneously combined with... Figure 5 and Figure 6 The cover 300 is rotatably fitted to the mounting plate 120 and surrounds the mounting plate 120 to form an air cavity 10b. The air outlet 301 is connected to the air cavity 10b, and the impeller 410 is housed within the air cavity 10b. The mounting plate 120 has a first air inlet 10a1, or in other words, the air inlet 10a can be distinguished as the first air inlet 10a1, or in other words, the air inlet 10a includes the first air inlet 10a1. The mounting plate 120 and the base 110 form an air intake channel 101 that communicates with the first air inlet 10a1. The air outlet 301 on the cover 300 is spaced apart from the impeller 410 in the radial direction. In other words, in this embodiment of the application, the fan assembly 400 adopts the principle of a centrifugal fan. During its operation, the impeller 410 is driven by the driver 420 to rotate in the air chamber 10b, which can guide outside air from the air inlet channel 101 through the first air inlet 10a1 into the air chamber 10b, and guide the air to be blown out from the air outlet 301.

[0049] Furthermore, at least a portion of the mounting plate 120 is spaced apart from the base 110 to form the aforementioned air intake channel 101 extending circumferentially along the mounting base 100. The air intake channel 101 can be arranged around the entire circumference of the mounting plate 120, i.e., distributed 360 degrees axially around the impeller 410, and two or more first air inlets 10a1 can be spaced apart on the mounting plate 120. Further, refer to... Figure 7 and Figure 8 The impeller 410 may include a mounting portion 411, a support portion 413, and an air guide portion 415 arranged radially from the inside to the outside. The support portion 413 is connected between the mounting portion 411 and the air guide portion 415. The mounting portion 411 may be fixedly connected to the output end of the driver 420. The air guide portion 415 has a large number of arc-shaped fins evenly distributed along its circumference, for example, more than 10 arc-shaped fins, to guide air out of the circumference of the impeller 410 during rotation.

[0050] In some implementations, reference Figure 8 In the radial direction of the impeller 410, the outer diameter of the first air inlet 10a1 is smaller than the outer diameter of the air guide 415, and slightly larger than the inner diameter of the air guide 415. This structural arrangement makes the airflow entering the air chamber 10b from the first air inlet 10a1 more concentrated between the air guide 415 and the mounting part 411, reducing the interference of the airflow entering the air chamber 10b from the first air inlet 10a1 on the airflow at the outlet 301, thereby reducing noise and improving the effective output of the fan assembly 400.

[0051] Of course, in other embodiments, the air intake channel 101 does not need to be arranged around the entire mounting plate 120. For example, the connection between the hanger 20 and the base 110 can occupy part of the space in the circumference of the mounting plate 100, so that the central angle of the air intake channel 101 is less than 360 degrees, for example, in the range of 300 degrees to 330 degrees, that is, the connection between the hanger 20 and the base 110 occupies 30 degrees to 60 degrees of space in the circumference of the mounting plate 100. Compared with the method of arranging the air intake channel 101 around the entire circumference of the mounting plate 120, this structural arrangement, with the connection between the hanger 20 and the base 110 and the air intake channel 101 arranged at the same height in the axial direction of the wearable fan 1000, can reduce the thickness of the entire wearable fan 1000 in the axial direction of the impeller 410, and achieve a miniaturized and compact design.

[0052] See again Figure 3 and Figure 4 The base 110 may include a base shell 111 and a cover plate 113 connected to the base shell 111. A hanging member 20 is connected to at least one of the cover plate 113 and the base shell 111, and the hanging member 20 extends freely on the side of the base shell 111 opposite to the mounting plate 120. Figure 5The bottom shell 111 and the cover plate 113 enclose a cavity 103, in which the power module 500 and circuit board 600 are housed. Buttons and a charging interface may also be located on the bottom shell 111. At least a portion of the mounting plate 120 and the cover plate 113 are spaced apart axially from the impeller 410 to form an air intake channel 101 exposed to the circumference of the wearable fan 1000. The mounting plate 120 can be detachably connected to the cover plate 113 with screws to improve the ease of assembly between the mounting plate 120 and the cover plate 113.

[0053] Furthermore, a protruding support column 121 can be provided on the side of the mounting plate 120 facing away from the impeller 410, and a groove 113a is provided on the side of the cover plate 113 facing the mounting plate 120. The bottom of the groove 113a has a mounting hole 113b that connects to the bottom shell 111. During the assembly of the mounting plate 120, the cover plate 113 and the bottom shell 111, the support column 121 can extend into the groove 113a to achieve the assembly and positioning of the mounting plate 120 and the cover 300, and to achieve the spacing between the mounting plate 120 and the cover plate 113. The surface of the mounting plate 120 facing away from the impeller 410 can be relatively smooth in the portion larger than the outer diameter of the first air inlet 10a1; the surface of the cover plate 113 facing the mounting plate 120 can also be relatively smooth in the portion larger than the outer diameter of the first air inlet 10a1, so that the distance between the mounting plate 120 and the cover plate 113 remains basically unchanged in the same radial dimension, so as to avoid the uneven surface from increasing the wind resistance.

[0054] Screws and other fasteners can be inserted into the support posts 121 from the side of the mounting plate 120 facing away from the bottom shell 111, and pass through the mounting holes 113b to the bottom shell 111. This allows for the fastening of the mounting plate 120, cover plate 113, and bottom shell 111 using a single screw, improving assembly efficiency. Two or more support posts 121 can be provided, and the number of countersunk grooves 113a corresponds to the number of support posts 121, thus accommodating multiple screws and improving the reliability of the assembly of the mounting plate 120, cover plate 113, and bottom shell 111.

[0055] Continue to refer to Figure 7 The mounting plate 120 has a circumferentially extending groove 120a around the impeller 410, and a plurality of slots 120b distributed within the groove 120a and spaced circumferentially around the impeller 410. More than three slots 120b can be provided. Figure 9The faceplate 300 has a locking point 3111 on the side facing the mounting plate 120. The locking point 3111 slides into the groove 120a and moves in and out of the groove 120b during the rotation of the faceplate 300 relative to the mounting plate 120. When the user rotates the faceplate 300 to adjust the orientation of the air outlet 301, the engagement of the locking point 3111 and the groove 120b provides a tactile feedback and ensures the reliable positioning of the faceplate 300 on the mounting plate 120, thus maintaining the orientation of the air outlet 301.

[0056] Combination Figure 10 In some embodiments, the faceplate 300 may include an air guide plate 310 and a cover body 320. The air guide plate 310 is snapped and fixed inside the cover body 320, and the air guide plate 310 has the aforementioned locking point 3111. The surface of the air guide plate 310 facing the impeller 410 can be processed into a smooth curved surface to reduce wind resistance and guide the air in the air chamber 10b to flow out towards the air outlet 301. The air guide plate 310 can be independently molded and then snapped and fixed to the cover body 320 for convenient assembly. Compared with the method of integrally molding the faceplate 300 and its locking point 3111, this structure can reduce the injection molding difficulty of the air guide plate 310 and improve the yield of the faceplate 300.

[0057] Specifically, the air guide plate 310 may have an integrally formed protrusion 311 and an arc-shaped plate 313. The protrusion 311 includes an integrally formed deformable arm 3113 and a connecting portion 3115. The connecting portion 3115 protrudes from the inner side of the arc-shaped plate 313 toward the center of the impeller 410, and one end of the deformable arm 3113 is connected to the protrusion 311. The opposite end of the deformable arm 3113 has the aforementioned locking point 3111. The connecting portion 3115 has a clearance groove 311a extending circumferentially along the deformable arm 3113. As the user rotates the cover 300 to make the locking point 3111 slide in the slide groove 120a, the contact between the locking point 3111 and the mounting plate 120 outside the slot 120b causes the deformable arm 3113 to swing away from the mounting plate 120. When the locking point 3111 enters the slot 120b, the deformation of the deformable arm 3113 is restored, which produces a locking feel. The cooperation between the locking point 3111 and the slot 120b is used to position the cover 300 on the mounting plate 120.

[0058] Furthermore, in the circumferential direction of the cover 300, the cover 300 may also have extension plates 330 protruding from the inner side of the cover body 320 at both ends of the air outlet 301. The extension plates 330 are integrally formed with the cover body 320, and the surface of the extension plates 330 facing the impeller 410 smoothly transitions from the guide plate 310 to the air outlet 301 to reduce wind resistance and facilitate the flow of air in the air chamber 10b to the air outlet 301. The two ends of the guide plate 310 may have recessed areas 313a corresponding to the two extension plates 330. The extension plates 330 overlap the recessed areas 313a. Combined with the interlocking structure of the guide plate 310 and the cover body 320, the guide plate 310 can be reliably fixed to the cover body 320. The engagement structure between the air guide plate 310 and the cover 320 is relatively easy to achieve. For example, one of the air guide plate 310 and the cover 320 can be provided with a protrusion, and the other can be provided with a groove that matches the protrusion. This will not be elaborated further here.

[0059] Continue to refer to Figure 6 , Figure 7 and Figure 9 The cover body 320 of the cover 300 has two or more bosses 340 arranged circumferentially around the inner side of the cover body 320 near its axial edge. The mounting plate 120 has a circumferentially extending guide groove 120c. The mounting plate 120 is fitted into the cover 300, and the bosses 340 are slidably engaged with the guide groove 120c to achieve a rotational engagement between the cover 300 and the mounting plate 120. The structure of the bosses 340 and the guide groove 120c not only enables a rotational engagement between the cover 300 and the mounting plate 120, but also prevents the cover 300 from easily detaching from the mounting plate 120 in the axial direction of the impeller 410 (or the axial direction of the cover 300). During the assembly process of pressing the mounting plate 120 into the cover 300, the contact area between the mounting plate 120 and the bosses 340 can be deformed by compression, so that the bosses 340 enter the guide groove 120c. Along the axial direction of the mounting plate 120 (or the impeller 410), the guide groove 120c is high at both ends and low in the middle, which prevents the boss 340 from easily dislodging from the guide groove 120c, i.e., prevents the cover 300 from easily dislodging from the mounting plate 120. Moreover, this fit between the cover 300 and the mounting plate 120 avoids the need for screws or other fasteners and bearings to achieve the assembly and rotation of the cover 300 and the mounting plate 120. Its fit structure is simple and reliable, easy to process and form, and reduces production costs.

[0060] See again Figure 3 , Figure 4 and Figure 5The cover 300 may also include a decorative cover 350 that is snapped and fixed to the cover body 320. In the axial direction of the impeller 410, the decorative cover 350 is located at the end of the cover 300 away from the mounting base 100, and the decorative cover 350 and the cover body 320 form a second air inlet 10a2 that communicates with the air chamber 10b. That is, the air inlet 10a can be divided into a first air inlet 10a1 and a second air inlet 10a2, or in other words, the air inlet 10a includes a first air inlet 10a1 and a second air inlet 10a2. The first air inlet 10a1 and the second air inlet 10a2 are distributed on opposite sides of the axial direction of the impeller 410. Since the impeller 410 has a first air inlet 10a1 and a second air inlet 10a2 on opposite sides of its axial direction, the wearable fan 1000 can have a larger air intake volume than a single air inlet during operation, so as to form a better positive pressure effect in the air chamber 10b, increase the air flow rate of the air outlet 301, and enhance the heat dissipation effect.

[0061] The decorative cover 350 can serve a decorative purpose; for example, patterns or textures can be applied to its outer surface. The engagement and fixation of the decorative cover 350 and the cover body 320 is relatively easy to achieve. For instance, one of the decorative cover 350 or the cover body 320 can have a protrusion, and the other can have a groove that engages with the protrusion; this will not be elaborated further here. The second air inlet 10a2 can be arranged around the decorative cover 350 to give it a relatively large cross-section, reducing its air resistance. In other words, in this embodiment, air inlets 10a are provided at both ends of the impeller 410's axial direction. During the operation of the wearable fan 1000, the impeller 410 guides air into the air chamber 10b from both ends, and then guides the air out through the outlet 301. Combined with the relatively high rotational speed of the driver 420, a relatively large airflow can be obtained, improving heat dissipation efficiency and enhancing the user experience.

[0062] Second Embodiment

[0063] refer to Figure 11 , Figure 12 and Figure 13In the second embodiment, the wearable fan 2000 includes a fan assembly 2100 and a hanging member 2200. The structure of the fan assembly 2100 can be referenced from the first embodiment, for example, it includes a mounting base 2110, a face cover 2120, a fan assembly 2130, and a power module 2140. The face cover 2120 has an air outlet 2121 on its side, and the face cover 2120 is rotatably fitted to the mounting base 2110 to adjust the orientation of the air outlet 2121. At least one of the face cover 2120 and the mounting base 2110 has an air inlet 2001. The fan assembly 2130 is connected to the mounting base 2110, and the face cover 2120 covers the fan assembly 2130. The power module 2140 is disposed on the mounting base 2110 and is used to supply power to the fan assembly 2130. The structures of the faceplate 2120, the fan assembly 2130, the rotational engagement structure between the faceplate 2120 and the mounting base 2110, the mounting base 2110, the air inlet 2001, and the air outlet 2121 can be referred to the first embodiment, and will not be repeated here. In other words, the fan assembly 2100 of the second embodiment of this application can be replaced by the fan assembly 10 of the first embodiment, and will not be repeated here.

[0064] Unlike the first embodiment, the second embodiment's hanging member 2200 is a circumferentially closed ring, allowing the fan assembly 2100 to be suspended from an external support, such as the user's neck. The user can adjust the orientation of the air outlet 2121 by rotating the face cover 2120 relative to the mounting base 2110, for example, so that the air outlet 2121 faces the user's neck or face, thus improving ease of use.

[0065] The wearable fan 2000 described above includes a fan assembly 2100 and a hanging member 2200. The fan assembly 2100 includes a mounting base 2110, a face cover 2120, a fan assembly 2130, and a power module 2140. The hanging member 2200 is a circumferentially closed ring and can suspend the fan assembly 2100 on an external support, such as a user's neck. The face cover 2120 has an air outlet 2121 on its side. The face cover 2120 is rotatably fitted to the mounting base 2110 to adjust the orientation of the air outlet 2121. At least one of the face cover 2120 and the mounting base 2110 is provided with an air inlet 2001. The fan assembly 2130 is connected to the mounting base 2110 and the face cover 2120 covers the fan assembly 2130. The power module 2140 is located on the mounting base 2110 and is used to supply power to the fan assembly 2130. During use, users can hang the wearable fan 1000 around their neck using the hanging part 2200, and adjust the orientation of the air outlet 2121 by rotating the face cover 2120, for example, so that the air outlet 2121 faces the neck or face. This eliminates the need to hold it in your hand like a handheld fan, improving the convenience of use. The flexible adjustment of the orientation of the air outlet 2121 further enhances the convenience of use.

[0066] Third Embodiment

[0067] refer to Figure 14 and Figure 15 In the third embodiment, the wearable fan 3000 includes a fan assembly 3100 and a hanging member 3200. The structure of the fan assembly 3100 can be referenced from the first embodiment, for example, it includes a mounting base 3110, a face cover 3120, a fan assembly 3130, and a power module 3140. The face cover 3120 has an air outlet 3121 on its side, and the face cover 3120 is rotatably fitted to the mounting base 3110 to adjust the orientation of the air outlet 3121. At least one of the face cover 3120 and the mounting base 3110 has an air inlet 3001. The fan assembly 3130 is connected to the mounting base 3110, and the face cover 3120 covers the fan assembly 3130. The power module 3140 is disposed on the mounting base 3110 and is used to supply power to the fan assembly 3130. The structures of the faceplate 3120, the fan assembly 3130, the rotational engagement structure between the faceplate 3120 and the mounting base 3110, the mounting base 3110, the air inlet 3001, and the air outlet 3121 can be referred to the first embodiment, and will not be repeated here. In other words, the fan assembly 3100 of the second embodiment of this application can be replaced by the fan assembly 10 of the first embodiment, and will not be repeated here.

[0068] Unlike the first embodiment, the hanging member 3200 in the third embodiment is approximately arc-shaped and has a first end 3210 and a second end 3220. The first end 3210 and the second end 3220 are connected to the two fan assemblies 3100 in a one-to-one correspondence. The hanging member 3200 is used to hang on the user's body, such as around the neck. The user can rotate the face cover 3120 so that the face cover 3120, which rotates relative to the mounting base 3110, can rotate relative to the mounting base 3110, thereby adjusting the orientation of the air outlet 3121, for example, so that the air outlet 3121 faces the user's ear, neck, or face, improving the convenience of use.

[0069] The wearable fan 3000 described above includes a fan assembly 3100 and a holder 3200. The fan assembly 3100 includes a mounting base 3110, a face cover 3120, a fan assembly 3130, and a power module 3140. The holder 3200 is approximately arc-shaped and has a first end 3210 and a second end 3220. The first end 3210 and the second end 3220 are connected to two fan assemblies 3100 in a one-to-one correspondence. The face cover 3120 has an air outlet 3121 on its side. The face cover 3120 is rotatably fitted to the mounting base 3110 to adjust the orientation of the air outlet 3121. At least one of the face cover 3120 and the mounting base 3110 is provided with an air inlet 3001. The fan assembly 3130 is connected to the mounting base 3110, and the face cover 3120 covers the fan assembly 3130. The power module 3140 is located on the mounting base 3110 and is used to supply power to the fan assembly 3130. During use, users can hang the wearable fan 1000 around their neck using the hanging part 3200 and adjust the orientation of the air outlet 3121 by rotating the face cover 3120, for example, so that the air outlet 3121 faces the neck or face. This eliminates the need to hold it in your hand like a handheld fan, improving the convenience of use. The flexible adjustment of the orientation of the air outlet 3121 further enhances the convenience of use.

[0070] In the third embodiment, the mounting base 3110 of the wearable fan 3000 can have more variations, such as Figure 16 and Figure 17 As shown, the mounting base 3110 can be elongated into an approximately elongated box shape. The mating structure between the mounting base 3110 and the cover 3120 can also be modified to still allow for rotational mating between the cover 3120 and the mounting base 3110. The decorative cover 350 in the first embodiment can be omitted. For example, several small holes can be opened on the side of the cover 3120 away from the mounting base 3110 to serve as an air inlet 3001, simplifying the structure of the cover 3120 and facilitating its molding.

[0071] Of course, in some embodiments, the holder 3200 and the mounting base 3110 are detachably connected, for example, by means of a snap-fit ​​or threaded fastener. By easily replacing the holder 3200, the wearable fan 3000 can be switched between different forms in the first embodiment, the second embodiment, and the third embodiment, further improving ease of use.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A wearable fan, characterized in that, include: A fan assembly includes a mounting base, a faceplate, a fan assembly, and a power module. The faceplate has an air outlet on its side. The faceplate is rotatably fitted to the mounting base to adjust the orientation of the air outlet. At least one of the faceplate and the mounting base has an air inlet. The fan assembly is connected to the mounting base, and the faceplate covers the fan assembly. The power module is located on the mounting base and is used to supply power to the fan assembly. as well as A hanging device is attached to the mounting base and is used to hang the wearable fan on an external support.

2. The wearable fan according to claim 1, characterized in that, The mounting base includes a base and a mounting plate fixedly connected to the base. The hanging member is connected to the base. The cover is rotatably fitted to the mounting plate and surrounds the mounting plate to form an air cavity. The air outlet communicates with the air cavity. The fan assembly includes an impeller housed in the air cavity. The mounting plate has a first air inlet, and the mounting plate and the base form an air intake channel communicating with the first air inlet. The air outlet is arranged radially at a distance from the impeller.

3. The wearable fan according to claim 2, characterized in that, At least a portion of the mounting plate is spaced apart from the base and forms the air intake channel extending circumferentially along the mounting base.

4. The wearable fan according to claim 2, characterized in that, The base includes a bottom shell and a cover plate connected to the bottom shell, and the hanging member is connected to at least one of the cover plate and the bottom shell; the bottom shell and the cover plate enclose a receiving cavity, and the power module is housed in the receiving cavity; the mounting plate is detachably connected to the cover plate, and at least a portion of the mounting plate is spaced apart from the cover plate in the axial direction of the impeller to form the air intake channel exposed to the circumference of the wearable fan.

5. The wearable fan according to claim 2, characterized in that, The mounting plate has a circumferentially extending groove around the impeller and a plurality of slots distributed in the groove and spaced apart around the impeller; the cover has a locking point on the side facing the mounting plate, the locking point slidingly engaging with the groove and moving in and out of the slot during the rotation of the cover relative to the mounting plate.

6. The wearable fan according to claim 5, characterized in that, The cover includes a cover body and an air guide plate that is engaged and fixed to the inside of the cover body, and the air guide plate has the locking point.

7. The wearable fan according to claim 6, characterized in that, The air guide plate has an integrally formed protrusion and an arc-shaped plate body. The protrusion includes an integrally formed deformable arm and a connecting part. The connecting part protrudes from the inner side of the arc-shaped plate body toward the center of the impeller. One end of the deformable arm is connected to the protrusion, and the other end has the locking point. The connecting part has a clearance groove extending circumferentially along the deformable arm.

8. The wearable fan according to claim 6, characterized in that, In the circumferential direction of the cover, the cover has extension plates protruding from the inner side of the cover body at both ends of the air outlet. The extension plates are integrally formed with the cover body. The two ends of the air guide plate have recessed areas corresponding to the two extension plates one by one. The extension plates overlap the recessed areas.

9. The wearable fan according to claim 2, characterized in that, The inner side of the cover has two or more protrusions arranged at intervals along the circumference of the cover. The mounting plate has a circumferentially extending guide groove. The mounting plate is embedded in the cover, and the protrusions slide in the guide groove to achieve rotational engagement between the cover and the mounting plate.

10. The wearable fan according to claim 2, characterized in that, The cover includes a cover body and a decorative cover that is snapped onto the cover body. In the axial direction of the impeller, the decorative cover is located at the end of the cover away from the mounting base, and the decorative cover and the cover body form a second air inlet communicating with the air cavity. The first air inlet and the second air inlet are distributed on opposite sides of the axial direction of the impeller.

11. The wearable fan according to any one of claims 1-10, characterized in that, One end of the hanging member is connected to the mounting base, and the other end of the hanging member can open relative to the mounting base to clamp the wearable fan to an external support.

12. The wearable fan according to any one of claims 1-10, characterized in that, The hanging member is a circumferentially closed loop for suspension to an external support.

13. The wearable fan according to any one of claims 1-10, characterized in that, The hanging member has a first end and a second end, the first end and the second end being connected to the two fan assemblies in a one-to-one correspondence, and the hanging member is used to suspend the user's body.

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