Handheld fan

Abstract

The present application belongs to the field of handheld fans, and relates to a handheld fan which has a curved tubular shape with arc-shaped transition at the bend. The handheld fan comprises a fan portion and a handheld portion, wherein the fan portion is configured to supply air, and the peripheral surface of one end of the fan portion is connected to and transitions smoothly to the peripheral surface of one end of the handheld portion; and an air baffle is provided on the fan portion or the handheld portion, and is configured to prevent airflow in the fan portion from entering the handheld portion. In the present application, by providing the air baffle configured to prevent airflow in the fan portion from entering the handheld portion, it is possible to prevent airflow in the fan portion from entering the handheld portion to allow airflow to enter and exit straight along the fan portion, thereby shortening the length of duct, which avoids turbulence and thus increases the airflow speed.

Description

Handheld fan TECHNICAL FIELD

[0001] The present application relates to the technical field of handheld fan, more particularly, to a handheld fan. BACKGROUND

[0002] The handheld fan is in inverted L-shaped tubular shape, the longer end is held by the user and the bottom is provided with an air inlet, the shorter end is provided with an air outlet to allow air flow to blow out, a fan component is arranged at the longer end, the fan component can suck air flow from the air inlet and blow it out from the air outlet after passing through the entire L-shaped tubular structure. However, the handheld fan designed in this way has a too long air duct, which affects the air flow speed and easily forms turbulence. SUMMARY

[0003] The main purpose of the present application is to provide a handheld fan to solve the problem of too long air duct of handheld fan, which affects the air flow speed and easily forms turbulence. Compared with the prior art, the handheld fan provided by the present application can prevent the air flow in the fan part from entering the handheld part by arranging a wind shield to block the air flow in the fan part from entering the handheld part, so as to realize the straight in and straight out of the air flow along the fan part, thereby shortening the length of the air duct, avoiding the phenomenon of turbulence, and further improving the air flow speed. BRIEF DESCRIPTION OF DRAWINGS

[0004] In order to more clearly illustrate the scheme in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0005] Fig. 1 is a schematic diagram of the overall structure of the handheld fan in an embodiment of the present application;

[0006] Fig. 2 is a schematic diagram of the structure of the wind shield and the fan shell in an embodiment of the present application;

[0007] Fig. 3 is an exploded schematic diagram of the handheld fan in an embodiment of the present application;

[0008] Fig. 4 is an exploded schematic diagram of the fan component in an embodiment of the present application;

[0009] Fig. 5 is a schematic diagram of the internal structure of the air duct in an embodiment of the present application;

[0010] Fig. 6 is a schematic diagram of the connection structure of the air duct and the mounting bracket in Fig. 4;

[0011] Fig. 7 is a schematic diagram of the structure of the wind shield and the fan shell in another embodiment of the present application;

[0012] Fig. 8 is an enlarged structural schematic view of a portion A in Fig. 7;

[0013] Fig. 9 is a structural schematic view of a handheld fan in another embodiment of the present application;

[0014] Fig. 10 is an enlarged structural schematic view of a portion B in Fig. 9;

[0015] Fig. 11 is a structural schematic view of Fig. 7 from another perspective;

[0016] Fig. 12 is a structural schematic view of a reinforcing structure in an embodiment of the present application;

[0017] Fig. 13 is a structural schematic view of a frame portion in an embodiment of the present application;

[0018] Fig. 14 is a structural schematic view of a frame body in an embodiment of the present application;

[0019] Fig. 15 is an exploded structural schematic view of a handheld fan in an embodiment of the present application, with a fan member removed;

[0020] Fig. 16 is an enlarged structural schematic view of a portion C in Fig. 15;

[0021] Fig. 17 is a structural schematic view of a fan housing in Fig. 15 from another perspective;

[0022] Fig. 18 is a structural schematic view of a handheld housing in Fig. 15 from another perspective;

[0023] Fig. 19 is a structural schematic view of a mounting bracket in Fig. 15 from another perspective;

[0024] Fig. 20 is an enlarged structural schematic view of a portion D in Fig. 19;

[0025] Fig. 21 is a structural schematic view of the mounting bracket in Fig. 19 from yet another perspective;

[0026] Fig. 22 is a structural schematic view of the mounting bracket pressing against a power supply in an embodiment of the present application;

[0027] Fig. 23 is a structural schematic view of the mounting bracket mounted in the handheld housing in an embodiment of the present application;

[0028] Fig. 24 is a structural schematic view of a circuit board and the mounting bracket assembled in an embodiment of the present application;

[0029] Fig. 25 is a structural schematic view of Fig. 24 from another perspective;

[0030] Fig. 26 is a structural schematic view of Fig. 18 from another perspective;

[0031] Fig. 27 is a structural schematic view of a support member in an embodiment of the present application;

[0032] Fig. 28 is an exploded structural schematic view of a fan member in another embodiment of the present application;

[0033] Fig. 29 is a structural schematic view of the connection structure of a first air guide portion, a second air guide portion and a fan wheel in an embodiment of the present application;

[0034] Fig. 30 is a structural schematic view of a fan portion in an embodiment of the present application;

[0035] Fig. 31 is a structural schematic view of another perspective of Fig. 30;

[0036] Fig. 32 is a structural schematic view of still another perspective of Fig. 30;

[0037] Fig. 33 is a structural schematic view of a fan portion in another embodiment of the present application;

[0038] Fig. 34 is a structural schematic view for showing the internal structure of a fan housing in Fig. 33;

[0039] Fig. 35 is an enlarged structural schematic view of a portion E in Fig. 34;

[0040] Fig. 36 is an enlarged structural schematic view of a portion F in Fig. 33;

[0041] Fig. 37 is a structural schematic view of another perspective of the fan member in Fig. 33. DETAILED DESCRIPTION

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the present application will be described with reference to the drawings and terminology used by a person skilled in the art. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and the like can be used herein, and are meant to be interpreted in an open-ended manner, i.e., they are intended to mean including, but not limited to, the elements listed after such terms. The terms "first," "second," and the like, as used herein can be used for distinguishing between similar elements in a given embodiment and are not necessarily used in all embodiments.

[0043] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0044] Embodiment One

[0045] Please refer to FIG. 1 and FIG. 2, the handheld fan 1000 is in a curved tubular arrangement, the curved portion 1001 is in an arc-shaped transition, the handheld fan 1000 comprises a wind shield 110, a fan part 100 and a handheld part 200, the fan part 100 is used for air supply, the handheld part 200 is used for the user to hold, the side peripheral surface of one end of the fan part 100 is connected with the side peripheral surface of one end of the handheld part 200 and is smoothly transitioned, so that the connection position of the fan part 100 and the handheld part 200 is convenient for the user to hold, the wind shield 110 is arranged on the fan part 100 or the handheld part 200, and the wind shield 110 is used for blocking the airflow in the fan part 100 from entering the handheld part 200. When the handheld fan 1000 is used, the airflow in the fan part 100 can be prevented from entering the handheld part 200 by the wind shield 110, the airflow is realized to be straight in and straight out along the fan part 100, so that the length of the air duct can be shortened, the phenomenon of turbulence is avoided, and then the airflow speed is improved.

[0046] Specifically, the wind shield 110 is arranged at one end of the fan part 100 close to the handheld part 200, the wind shield 110 can separate the fan part 100 and the handheld part 200 in the connected state into two chambers, so as to prevent the airflow in the fan part 100 from entering the handheld part 200. In other embodiments, the wind shield 110 can also be arranged at one end of the handheld part 200 close to the fan part 100.

[0047] It is worth mentioning that the curved portion 1001 is arranged on the fan part 100 and close to the handheld part 200, which is beneficial to the compact design of the fan part 100. In other embodiments, the curved portion 1001 can also be arranged on the handheld part 200, and the curved portion 1001 can also be arranged at the connection position of the fan part 100 and the handheld part 200. The wind shield 110 is arranged at the curved portion 1001, so that the wind shield 110 is located at the connection position of the fan part 100 and the handheld part 200, which facilitates the wind shield 110 to separate the fan part 100 and the handheld part 200 into two chambers.

[0048] Further, in order to facilitate the processing and forming of the fan part 100 and the handheld part 200, the fan part 100 and the handheld part 200 are both arranged in a pipe shape. Because the curved portion 1001 is arranged on the fan part 100, the fan part 100 is in an elbow structure, and the handheld part 200 is in a straight pipe structure. After the fan part 100 is connected with the handheld part 200, the fan part 100 and the handheld part 200 are arranged in an inverted L shape, so that the handheld fan 1000 can be compact and convenient to carry. In other embodiments, when the curved portion 1001 is arranged at the connection position of the fan part 100 and the handheld part 200, the handheld part 200 and the fan part 100 are both in an elbow structure; when the curved portion 1001 is arranged on the handheld part 200, the handheld part 200 is in an elbow structure, and the fan part 100 is in a straight pipe structure.

[0049] Preferably, the elbow structure is bent at an angle of 90 degrees, so that, on one hand, when the user places the handheld fan 1000 on a table, the fan part 100 can blow air forward to the user's body, thereby facilitating the air blowing of the fan part 100, and on the other hand, the holding feeling of the connection position of the fan part 100 and the handheld part 200 can be enhanced. In other embodiments, the elbow structure is bent at an angle of 90 degrees, 100 degrees, 110 degrees or 120 degrees. Specifically, both ends of the elbow structure are open, and the diameters of the two ends are equal, so that the fan part 100 is conveniently processed and formed. In other embodiments, the elbow structure can also be a reducing elbow structure, for example,

[0050] The diameter of the opening of the elbow structure close to the handheld part 200 is greater than the diameter of the opening of the elbow structure away from the handheld part 200, so that the airflow blown by the fan part 100 is more concentrated and faster; for example, the diameter of the opening of the elbow structure close to the handheld part 200 is smaller than the diameter of the opening of the elbow structure away from the handheld part 200, so that the airflow blown by the fan part 100 is more dispersed and gentle.

[0051] Please refer to FIGS. 2 and 3, the fan part 100 includes a fan housing 120 connected with the handheld part 200 and a fan member 130, the fan housing 120 has an air inlet 121, an air outlet 122 and an airflow passage 123 communicating the air inlet 121 and the air outlet 122, specifically, the airflow passage 123 penetrates the fan housing 120 at an end away from the air inlet 121 to form the air outlet 122, so that the air outlet 122 is conveniently formed, and the baffle 110 is arranged on the fan housing 120 to block the airflow in the airflow passage 123 from entering the handheld part 200; the fan member 130 includes a wind guide 131, a mounting bracket 132 and a fan piece 133, the outer peripheral wall of the wind guide 131 cooperates with the inner peripheral wall of the fan housing 120, the outer peripheral wall of the mounting bracket 132 is connected with the inner peripheral wall of the wind guide 131 through a plurality of gratings 1321, and the fan piece 133 is arranged on the mounting bracket 132. In use, the fan piece 133 drives the airflow to be first sucked into the airflow passage 123 through the air inlet 121 and then directly accelerated through the wind guide 131 to blow to the user, so that the airflow is straight in and straight out. In other embodiments, the fan member 130 can also be directly arranged as an axial flow fan mounted in the airflow passage 123.

[0052] In this embodiment, the shape of the airflow passage 123 is linear, so that the airflow is straight in and straight out when the handheld fan 1000 blows, and the blowing efficiency is improved. In this embodiment, the plurality of air inlets 121 are regularly arranged, so that the plurality of air inlets 121 are conveniently injection molded, and the airflow passage 123 is uniformly ventilated at each position.

[0053] And the bending part 1001 is arranged on the fan shell 120, a plurality of air inlets 121 are arranged on the outer corner side of the bending part 1001, and the air inlets 121 and the air outlets 122 are arranged in parallel along the horizontal direction, so as to improve the air inlet and air outlet efficiency. In addition, the air baffle 110 is arranged in an arc shape, and the bending arc is adapted to the inner circumferential wall of the air flow channel 123, so that the air flow channel 123 forms a cylindrical inner side surface, further reduces the air flow turbulence phenomenon, improves the air flow speed, and also reduces the noise.

[0054] Please refer to FIG. 1 and FIG. 3, the outer circumferential wall of the air deflector 131, the inner circumferential wall of the mounting bracket 132 and the plurality of gratings 1321 are arranged to form a plurality of air flow combing openings 1322, so that the air flow can be combed when the air flow is blown out through the air deflector 131, and the noise of the air flow is reduced. And the center line of the air deflector 131 along the axial direction coincides with the center line of the mounting bracket 132 along the axial direction, so that the air flow blowing out is more uniform. Further, the outer circumferential wall of the air deflector 131 and the inner circumferential wall of the air flow channel 123 between the position close to the air outlet 122 are filled with foam, so as to reduce the vibration noise generated by the air deflector 131 and the fan shell 120 when the fan piece 133 rotates. In addition, please refer to FIG. 5, the inner diameter of the air inlet end of the air deflector 131 is arranged to be gradually reduced from the air inlet 121 to the air outlet 122, and the inner diameter of the air outlet end of the air deflector 131 is arranged to be gradually increased from the air inlet 121 to the air outlet 122, so that the air inlet end and the air outlet end of the air deflector 131 are both arranged in a horn shape, which can play a guiding role when the air flow flows into and out of the air deflector 131. In other embodiments, one of the air inlet end and the air outlet end of the air deflector 131 can be arranged in a horn shape.

[0055] Please refer to FIG. 3 and FIG. 6, the side of the mounting bracket 132 facing the air inlet 121 is provided with an inner mounting groove 1323, the groove bottom of the inner mounting groove 1323 is provided with a hollow fixing shaft 1324, the fan member 133 includes a fan wheel 1331, a stator 1332 and a rotor 1333, the fan wheel 1331 has a hub and a plurality of fan blades, the plurality of fan blades are uniformly and spaced apart along the circumferential direction of the hub and arranged on the outer peripheral wall of the hub, the hub is rotationally connected with the fixing shaft 1324 through a rotating shaft, the stator 1332 is arranged around the outer peripheral wall of the fixing shaft 1324, and the outer peripheral wall of the rotor 1333 is matched with the inner peripheral wall of the hub and arranged around the stator 1332, so that the fan wheel 1331 can be driven to rotate by the interaction of the stator 1332 and the rotor 1333 to generate airflow. The outer diameter of the hub near one end close to the air inlet 121 is gradually expanded from the air inlet 121 to the air outlet 122, so that the airflow passing through the hub can form a high-pressure airflow to increase the flow rate. Please refer to FIG. 3 and FIG. 4, the side of the mounting bracket 132 close to the air outlet 122 is provided with an outer mounting groove 1325, the fan member 130 further includes a display screen and a cover body 135, the display screen is arranged in the outer mounting groove 1325 and used to display gear information or power information of the handheld fan 1000, and the cover body 135 is buckled at the slot opening of the outer mounting groove 1325 to cover the display screen and protect the display screen.

[0056] Please refer to FIG. 2 to FIG. 4, in order to conveniently connect the circuit board 240 in the handheld part 200 with the electrically connected parts such as the stator 1332 and the display screen in the fan member 133, the lattice 1321 is hollowly arranged to form a wire passing lattice 1326, both ends of the wire passing lattice 1326 correspondingly penetrate the inner peripheral wall of the mounting bracket 132 and the outer peripheral wall of the air duct 131, and the position of the inner peripheral wall of the airflow channel 123 abutting with the air duct 131 is provided with a communication port 124 connecting the wire passing lattice 1326 and the handheld part 200, so that the fan member 133 is coupled with the circuit board 240 through wires. Obviously, the wire passing lattice 1326 is in communication with the inner mounting groove 1323 and the outer mounting groove 1325, so that the wires pass through the wire passing lattice 1326 to be connected with the stator 1332 and the display screen. When the circuit board 240 in the handheld part 200 and the stator 1332 in the fan member 133 are connected through wires, the first end of the wire is connected with the stator 1332, and then the second end of the wire passes through the wire passing lattice 1326 and the communication port 124 in sequence and is connected with the circuit board 240, so that the electric connection between the circuit board 240 and the stator 1332 is completed. Obviously, the wire connection mode of the display screen and the circuit board 240 is the same as the wire connection mode of the circuit board 240 and the stator 1332.

[0057] Specifically, the wire passing grid 1326 is staggered with the communication port 124, i.e. the wire passing grid 1326 is located between the communication port 124 and the air outlet 122, so that the airflow carding port 1322 is located at the air outlet 122, which is beneficial to carding the airflow. In other embodiments, the wire passing grid 1326 and the communication port 124 can also be opposite, i.e. the communication port 124 is located below the wire passing grid 1326, so as to shorten.

[0058] Further, referring to FIGS. 2-4, a guide structure 125 is provided between the outer peripheral wall of the air duct 131 and the inner peripheral wall of the fan housing 120 (the inner peripheral wall of the airflow passage 123), and the communication between the communication port 124 and the wire passing grid 1326 is located in the guide structure 125. In this way, the guide structure 125 can not only guide the assembly of the air duct 131 and the fan housing 120, but also integrate the communication between the communication port 124 and the wire passing grid 1326 in the guide structure 125, reasonably utilize the space in the handheld fan 1000, and facilitate the high integration design of the components of the handheld fan 1000.

[0059] Referring to FIGS. 2-4, the guide structure 125 includes a guide groove 1251 and two guide protrusions 1252. The guide groove 1251 is provided on the inner peripheral wall of the airflow passage 123, and the side of the guide groove 1251 close to the air outlet 122 is provided through, and the side of the guide groove 1251 away from the air outlet 122 is provided through to communicate with the communication port 124, and the wire passing grid 1326 is located directly above the side of the guide groove 1251 close to the air outlet 122. The two guide protrusions 1252 are arranged in parallel on the outer peripheral wall of the air duct 131, and each guide protrusion 1252 is arranged in the axial direction of the air duct 131. The two guide protrusions 1252 correspondingly slide against the two groove walls in the width direction of the guide groove 1251. In this way, the guide groove 1251 and the two guide protrusions 1252 can not only guide the assembly of the air duct 131 and the fan housing 120, but also form a channel for the wires to pass through by surrounding the two guide protrusions 1252 and the guide groove 1251. Moreover, the guide groove 1251 and the guide protrusion 1252 arranged in this way can also reduce the airflow in the airflow passage 123 passing through the communication port 124 into the handheld part 200. In other embodiments, the guide structure 125 can also include the guide groove 1251 and one guide protrusion 1252, and the guide protrusion 1252 slides against one side wall in the width direction of the guide groove 1251.

[0060] Please refer to FIG. 2 to FIG. 4, the thickness of the guide ribs 1252 in the radial direction of the air duct 131 is tapered from the air outlet 122 to the air inlet 121, so that the side of the guide ribs 1252 facing away from the air duct 131 is formed as a guide slope 12521. In this way, the guide slope 12521 can guide the guide ribs 1252 when they slide into the guide grooves 1251, thereby facilitating the sliding of the guide ribs 1252 into the guide grooves 1251. In addition, please refer to FIG. 1 and FIG. 3, the handheld fan 1000 further comprises a base 300, the top of the base 300 has a groove for inserting the bottom of the handheld part 200, so that the handheld part 200 can be inserted into the groove to achieve the upright placement of the handheld fan 1000.

[0061] Please refer to FIG. 7 to FIG. 9, the fan housing 120 further has an air inlet cavity wall 126, a plurality of air inlets 121 are arranged on the air inlet cavity wall 126, and the inner circumferential wall of the airflow channel 123 is arranged around the air inlet cavity wall 126. The fan part 100 further comprises a reinforcing structure 140, which is arranged on the air inlet cavity wall 126 and connected with the inner circumferential wall of the airflow channel 123. Specifically, the reinforcing structure 140 is integrally formed with the fan housing 120. In this way, the connection strength between the reinforcing structure 140 and the air inlet cavity wall 126 can be enhanced, and the connection strength between the reinforcing structure 140 and the inner circumferential wall of the airflow channel 123 can also be enhanced, thereby enhancing the support strength of the reinforcing structure 140 to the air inlet cavity wall 126. In other embodiments, the reinforcing structure 140 and the fan housing 120 can also be fixed by bonding, ultrasonic welding or other methods. The number of reinforcing structures 140 can be one or more. The support strength of the reinforcing structure 140 and the airflow channel 123 to the air inlet cavity wall 126 is proportional to the number of reinforcing structures 140. The more the number of reinforcing structures 140, the higher the support strength of the reinforcing structure 140 and the airflow channel 123 to the air inlet cavity wall 126. As long as the weight of the handheld fan 1000 and the assembly of other components are not affected, as many reinforcing structures 140 as possible are arranged.

[0062] Please refer to FIG. 9 and FIG. 10, the diameter of the air inlet 121 far away from the air inlet cavity wall 126 is tapered from the air inlet 121 to the air inlet cavity wall 126, so that the end of the air inlet 121 far away from the air inlet cavity wall 126 is trumpet-shaped, which can guide the airflow when the airflow passes through, and is conducive to the airflow in the external environment being sucked into the airflow passage 123 through the air inlet 121. When the position of the air inlet 121 on the fan shell 120 is subjected to external force, the external force is first transmitted to the air inlet cavity wall 126 through the outer surface of the fan shell 120, then transmitted to the reinforcing structure 140 through the air inlet cavity wall 126, and finally transmitted to the inner circumferential wall of the airflow passage 123 through the reinforcing structure 140, so that the external force on the position of the air inlet 121 on the fan shell 120 can be gradually dispersed to the inner circumferential wall of the airflow passage 123. Further, the position of the air inlet 121 on the fan shell 120 can be effectively supported under the cooperation of the reinforcing structure 140 and the airflow passage 123.

[0063] Please refer to FIG. 7 to FIG. 9, the position where the reinforcing structure 140 and the inner circumferential wall of the airflow passage 123 are connected adjacent to the air inlet cavity wall 126, so that the reinforcing structure 140 and the position on the inner circumferential wall of the airflow passage 123 closest to the air inlet cavity wall 126 are connected, which can shorten the path of transmitting the external force from the reinforcing structure 140 to the inner circumferential wall of the airflow passage 123. In other embodiments, the position where the reinforcing structure 140 and the inner circumferential wall of the airflow passage 123 are connected can also have a certain distance from the air inlet cavity wall 126.

[0064] Further, please refer to FIG. 7 and FIG. 8, the width of the position where the reinforcing structure 140 and the inner circumferential wall of the airflow passage 123 are connected is tapered from the air inlet 121 to the airflow passage 123, so that when the external force is transmitted from the reinforcing structure 140 to the inner circumferential wall of the airflow passage 123, the width of any position where the reinforcing structure 140 and the inner circumferential wall of the airflow passage 123 are connected is positively correlated with the external force at that position, thereby enhancing the stability of the inner circumferential wall of the airflow passage 123 supporting the reinforcing structure 140. FIG. 8 shows that the shape of the position where the reinforcing structure 140 and the inner circumferential wall of the airflow passage 123 are connected is triangular and isosceles trapezoidal, both of which can make the width of the position where the reinforcing structure 140 and the inner circumferential wall of the airflow passage 123 are connected tapered from the air inlet 121 to the airflow passage 123.

[0065] Please refer to FIG. 7 to FIG. 13, the above-mentioned reinforcing structure 140 has many types, the reinforcing structure 140 includes a frame part 141 and a support part 142, the frame part 141 and the support part 142 are both fixedly arranged on the air inlet cavity wall 126, and the frame part 141 at least traverses the position between two adjacent air inlets 121, and the support part 142 connects the outer circumferential wall of the frame part 141 and the position where the inner circumferential wall of the airflow passage 123 is adjacent to the air inlet cavity wall 126.

[0066] Specifically, the frame portion 141 and the support portion 142 are integrally formed, and thus the structural strength of the reinforcing structure 140 can be enhanced. Apparently, in other embodiments, the frame portion 141 and the support portion 142 can also be two independent components which are fixed by bonding, ultrasonic welding or the like.

[0067] By way of example but not limitation, the frame portion 141 can be located between two adjacent air inlets 121, and the frame portion 141 can also be located between all adjacent air inlets 121. In addition, it should be noted that the frame portion 141 is arranged staggered with respect to the plurality of air inlets 121, so that the frame portion 141 will not interfere with the air inlet of the plurality of air inlets 121.

[0068] Through the above technical solution, when the position of the air inlet 121 on the fan housing 120 is subjected to an external force, the external force is first transmitted to the air inlet cavity wall 126 through the outer surface of the fan housing 120, then transmitted to the frame portion 141 through the air inlet cavity wall 126, and finally transmitted to the inner circumferential wall of the airflow passage 123 through the support portion 142. In this way, the external force can be effectively dispersed by the frame portion 141, and at the same time, the frame portion 141 can be effectively supported by the support portion 142, thereby enhancing the structural strength of the position of the air inlet 121 on the fan housing 120.

[0069] In other embodiments, the reinforcing structure 140 can also be provided as a rod member which is arranged obliquely in the airflow passage 123, one end of the rod member is connected with the air inlet cavity wall 126, and the other end of the rod member is connected with the inner circumferential wall of the airflow passage 123, which can also enhance the structural strength of the position of the air inlet 121.

[0070] Referring to FIGS. 11-14, further, the plurality of air inlets 121 are arranged in a honeycomb shape, the air inlets 121 are hexagonal, and the frame portion 141 is arranged in a honeycomb shape to form a plurality of hexagonal frame bodies 1411', each frame body 1411' surrounds a corresponding air inlet 121. In this way, on the one hand, the arrangement of the plurality of air inlets 121 in a honeycomb shape can effectively straighten the airflow, thereby avoiding the formation of turbulence and generating aerodynamic noise; on the other hand, by matching the shape of the frame portion 141 with the arrangement shape of the plurality of air inlets 121, the plurality of frame bodies 1411' can effectively support the positions of the plurality of air inlets 121.

[0071] The number of frame bodies 1411' can be equal to the number of air inlets 121, or the number of frame bodies 1411' can be less than the number of air inlets 121, and all frame bodies 1411' correspond to a part of all air inlets 121, which is not limited in detail.

[0072] Obviously, in other embodiments, the plurality of air inlets 121 can also be arranged in a rectangular array or in a circular array, and accordingly, the shape of the frame portion 141 is adapted to the arrangement of the plurality of air inlets 121; similarly, the shape of the air inlets 121 can also be circular, oval, square, or other shapes, and accordingly, the shape of the frame body 1411' is adapted to the shape of the air inlets 121.

[0073] Please refer to FIGS. 8-13, the frame portion 141 is connected by a plurality of frame segments 1411, each frame segment 1411 and the support portion 142 have two avoidance sides 1431 connected at an angle and a fixed side 1432 connecting the two avoidance sides 1431; each fixed side 1432 is connected to the corresponding position of the air inlet cavity wall 126, so that each frame segment 1411 and the support portion 142 are located between the corresponding two air inlets 121, and each avoidance side 1431 is inclined and offset away from the corresponding air inlet 121, so that when the airflow flows from the air inlet 121 to the airflow passage 123, the avoidance side 1431 provided on the frame segment 1411 and the support portion 142 of the frame portion 141 can effectively avoid the airflow, thereby effectively avoiding the frame portion 141 and the support portion 142 from blocking the airflow. In this embodiment, the angle formed by the two avoidance sides 1431 is 89.36 degrees, which can make the avoidance side 1431 completely deviate from the flow path of the airflow to achieve the best avoidance effect. In other embodiments, the angle formed by the two avoidance sides 1431 can also be 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, 90 degrees, 95 degrees, or other angle values.

[0074] Please refer to FIGS. 7-13, in order to enhance the support strength of the reinforcing structure 140 to the air inlet cavity wall 126, a plurality of support portions 142 are uniformly arranged along the circumference of the frame portion 141, which can effectively support the frame portion 141 along the circumference of the frame portion 141 to enhance the support strength of the reinforcing structure 140 to the air inlet cavity wall 126. Further, a part of the plurality of support portions 142 is arranged along the extension direction of the airflow passage 123, and another part of the plurality of support portions 142 is arranged along the first direction, which is perpendicular to the extension direction of the airflow passage 123, so that the plurality of support portions 142 can support the frame portion 141 in two directions to enhance the support strength of the reinforcing structure 140 to the air inlet cavity wall 126.

[0075] Please refer to FIG. 7, in order to facilitate the support of the air inlet cavity wall 126 by the reinforcing structure 140, the air inlet cavity wall 126 is arranged in an arc shape, and the shape of the outer surface of the fan housing 120 opposite to the position of the air inlet cavity wall 126 is also arranged in an arc shape to match the shape of the air inlet cavity wall 126. Further, please refer to FIG. 7 and FIG. 8, the air baffle 110 is adjacent to the edge of the air inlet cavity wall 126, and the air baffle 110 and the inner wall of the fan housing 120 form a airflow passage 123, so that a part of the plurality of support portions 142 is connected with the air baffle 110, and another part of the plurality of support portions 142 is connected with the inner wall of the fan housing 120. In this way, the air baffle 110 can not only prevent the airflow from flowing from the fan housing 120 into the handheld housing 260, but also provide a connection position for the support portions 142.

[0076] Please refer to FIG. 15 and FIG. 16, the fan housing 120 and the handheld housing 210 are detachably connected, and the handheld fan 1000 further comprises a mounting frame 220, the handheld housing 210 has a mounting cavity 2101 and a mounting opening 2102 which is in communication with the mounting cavity 2101 and the external environment, and the mounting frame 220 can be clamped and fixed by the handheld housing 210 and the fan housing 120 in the mounting cavity 2101 and the fan housing 120 when the handheld housing 210 and the fan housing 120 are detachably connected, so that the circuit board 240 and the button 250 of the handheld fan 1000 to be introduced below can be arranged around the outer periphery of the mounting frame 220 to form an integrated component with the mounting frame 220, and the mounting frame 220 can also provide a mounting position for the circuit board 240 to be introduced below. The fan housing 120 provides a mounting position for the fan component 130 to be introduced below, and the fan housing 120 is detachably connected with the handheld housing 210 and covers the mounting opening 2102. Moreover, the mounting frame 220 is arranged in a tubular shape with both ends open, so that the mounting frame 220 is a hollow structure to reduce the weight of the mounting frame 220.

[0077] In assembling the handheld fan 1000, the mounting frame 220 is first placed into the mounting cavity 2101, and then the handheld housing 210 is detachably connected with the fan housing 120, so that the mounting frame 220 is clamped and fixed, and the assembling is completed; in disassembling the handheld fan 1000, the detachable connection between the handheld housing 210 and the fan housing 120 is first released, that is, the clamping and fixing of the mounting frame 220 is released, and then the mounting frame 220 is taken out through the mounting opening 2102, and the disassembling is completed. In this way, part of the mounting frame 220 is located in the handheld housing 210, and the other part of the mounting frame 220 is located in the fan housing 120, and the handheld housing 210 does not need to accommodate the entire mounting frame 220, and accordingly, the length of the handheld housing 210 can be reduced; and by surrounding the mounting frame 220 with the circuit board 240 and the button 250 of the handheld fan 1000, an integrated component formed by the mounting frame 220 can be arranged, so that the components in the handheld housing 210 of the handheld fan 1000 are highly integrated, thereby effectively reducing the volume of the handheld housing 210, and further facilitating the miniaturization of the handheld fan 1000.

[0078] Please refer to FIGS. 15-17, the detachable connection between the handheld housing 210 and the fan housing 120 can be achieved in many ways, one end of the handheld housing 210 provided with the mounting opening 2102 is formed as a first docking portion 211, the outer periphery of the first docking portion 211 is provided with a first buckle 2111, the fan housing 120 is provided with a second docking portion 1201 in the form of a ring, the second docking portion 1201 is sleeved with the first docking portion 211, and the second docking portion 1201 is provided with a first buckle position 12011 matched with the first buckle 2111, so that the detachable connection between the handheld housing 210 and the fan housing 120 is facilitated. In the embodiment, a plurality of first buckles 2111 are uniformly and spacedly arranged along the circumference of the first docking portion 211, a plurality of first buckle positions 12011 are uniformly and spacedly arranged along the circumference of the second docking portion 1201, each first buckle 2111 is matched with the corresponding first buckle position 12011, so that the connection strength between the handheld housing 210 and the fan housing 120 is improved. In other embodiments, the handheld housing 210 and the fan housing 120 can be detachably connected and fixed by means of threaded connection, magnetic attraction, etc.

[0079] Please refer to FIG. 17 to FIG. 20, there are many ways to clamp and fix the mounting frame 220 in the mounting cavity 2101 when the handheld housing 210 and the fan housing 120 are detachably connected. The mounting frame 220 is provided with a clamping hole 2201 and a clamping groove 2202 on the two opposite sides. The inner circumferential wall of the mounting cavity 2101 is provided with a clamping hook 212 matched with the clamping hole 2201. The fan housing 120 is provided with a clamping strip 1202 matched with the clamping groove 2202. Thus, the clamping and fixing of the mounting frame 220 can be achieved by the cooperation of the clamping hook 212 and the clamping hole 2201, and the cooperation of the clamping strip 1202 and the clamping groove 2202. Specifically, the clamping groove 2202 is arranged through the outer circumferential wall of the mounting frame 220, so that the clamping groove 2202 is conveniently formed. In this embodiment, the mounting frame 220 is provided with the clamping hole 2201 and the clamping groove 2202 on the two opposite sides. The inner circumferential wall of the mounting cavity 2101 is provided with the clamping hook 212 on the two opposite sides. The fan housing 120 is provided with the clamping strip 1202 on the two opposite sides. Each clamping hook 212 is matched with the corresponding clamping hole 2201. Each clamping groove 2202 is matched with the corresponding clamping strip 1202. Thus, the fixing strength of the mounting frame 220 can be enhanced. In addition, in order to conveniently arrange the clamping hook 212 on the inner circumferential wall of the mounting cavity 2101, the inner circumferential wall of the mounting cavity 2101 is provided with a reinforcing rib 213 extending from the mounting port 2102 to the mounting cavity 2101. The end of the reinforcing rib 213 close to the mounting port 2102 is formed into the clamping hook 212. Thus, the clamping hook 212 is conveniently arranged.

[0080] Please refer to FIG. 19 and FIG. 20, the clamping hole 2201 includes a guide section 22011 and a clamping section 22012 communicated with the guide section 22011. The width of the guide section 22011 is tapered from the guide section 22011 to the clamping section 22012. The clamping section 22012 is matched with the clamping hook 212. Thus, the guide section 22011 can guide the clamping hook 212, so that the clamping hook 212 is conveniently arranged in the clamping section 22012. In other embodiments, a first limiting ring extending along the circumferential direction can be arranged on the inner circumferential wall of the mounting cavity 2101. A second limiting ring extending along the circumferential direction can be arranged in the fan housing 120. The first limiting ring and the second limiting ring are matched with the two ends of the mounting frame 220 in the axial direction, so as to clamp and fix the mounting frame 220.

[0081] Please refer to Fig. 15 and Fig. 16, the handheld fan 1000 further comprises a power supply 230, the mounting frame 220 is clamped and fixed when pressing the power supply 230, so as to press the power supply 230 on the bottom wall of the mounting cavity 2101. Wherein, the power supply 230 is used to supply power for the fan component 130. When assembling the handheld fan 1000, the power supply 230 and the mounting frame 220 are put into the mounting cavity 2101 in sequence, and then the handheld shell 210 is detachably connected with the fan shell 120, so that the mounting frame 220 is clamped and fixed, and the power supply 230 is pressed on the bottom wall of the mounting cavity 2101, realizing the locking of the power supply 230, so as to assemble; when disassembling the handheld fan 1000, first, the detachable connection between the handheld shell 210 and the fan shell 120 is released, that is, the clamping and fixing of the mounting frame 220 is released, and the pressing of the power supply 230 is released at the same time, realizing the unlocking of the power supply 230, then the mounting frame 220 and the power supply 230 are taken out through the mounting port 2102 in sequence, so as to complete the disassembly. Through the disassembly of the mounting frame 220, the locking or unlocking of the power supply 230 can be realized at the same time, so that the installation of the power supply 230 is convenient. And the mounting frame 220 is in the form of a cylindrical shape with both ends open, which can reduce the contact area between the mounting frame 220 and the power supply 230, so that the pressing of the mounting frame 220 on the power supply 230 will not affect the heat dissipation of the power supply 230.

[0082] Please refer to Fig. 22 and Fig. 23, the end face of the mounting frame 220 is formed with a strip-shaped pressing area 221, and the inner circumferential wall of the mounting frame 220 is provided with two pressing protrusions 222 which are spaced apart along the circumferential direction; the pressing area 221 is pressed on one side of the end face of the power supply 230, and the two pressing protrusions 222 are pressed on the other side of the end face of the power supply 230, so that the power supply 230 is pressed on the bottom wall of the mounting cavity 2101. In this way, by setting one pressing area 221 and two pressing protrusions 222, three positions arranged in a triangular shape on the end face of the power supply 230 can be pressed. The pressing strength of the mounting frame 220 on the power supply 230 is enhanced, so as to improve the stability of the power supply 230. And each pressing protrusion 222 has a spacing with the pressing area 221, and the connecting line of the two pressing protrusions 222 is parallel to the extension direction of the pressing area 221, so that the pressing force on the power supply 230 is uniformly distributed.

[0083] Please refer to FIG. 16 to FIG. 25, the outer peripheral wall of the mounting frame 220 is formed with two mounting sides 2203 which are oppositely arranged, each of the mounting sides 2203 is provided with a slot 2204, each of the slots 2204 is formed with a socket 2205 which is penetrated by the side wall close to or away from the bottom wall of the mounting cavity 2101; the handheld fan 1000 further comprises two circuit boards 240, each of the circuit boards 240 is inserted into the corresponding slot 2204 through the corresponding socket 2205, and each of the circuit boards 240 is electrically connected with the power supply 230. When disassembling the circuit boards 240, the circuit boards 240 are inserted into the corresponding slots 2204 through the corresponding sockets 2205 or are extracted from the corresponding slots 2204 through the corresponding sockets 2205, so that the disassembly and assembly of the circuit boards 240 are completed, and thus the disassembly and assembly of the circuit boards 240 are facilitated. In the embodiment, one of the slots 2204 is penetrated by the side wall close to the bottom wall of the mounting cavity 2101, and the other slot 2204 is penetrated by the side wall away from the bottom wall of the mounting cavity 2101, and the two circuit boards 240 realize different functions, one of the circuit boards 240 is used to control the start or stop of the fan housing 120, and the other circuit board 240 is used to control the speed of the fan housing 120.

[0084] Please refer to FIG. 19 and FIG. 21, the bottom of each of the slots 2204 is provided with a through hole 2206 which is communicated with the inner peripheral wall of the mounting frame 220, so that the contact area of the circuit board 240 with the mounting frame 220 can be reduced, the heat dissipation of the circuit board 240 is facilitated, the wire can be conveniently penetrated, and the weight of the mounting frame 220 can be reduced.

[0085] It is worth mentioning that the area of the through hole 2206 is smaller than the area of the bottom of the slot 2204, so that the position of the bottom of the slot 2204 which is not penetrated can effectively bear the circuit board 240.

[0086] Please refer to FIG. 16 and FIG. 19, considering that if the position between the two mounting sides 2203 of the outer peripheral wall of the mounting frame 220 is fitted with the corresponding position of the inner peripheral wall of the mounting cavity 2101, the mounting frame 220 can be effectively limited, and the layout of the mounting frame 220 and the handheld housing 260 is compact, therefore, the position between the two mounting sides 2203 of the outer peripheral wall of the mounting frame 220 is formed with two fitting sides 2207, the shape of each of the fitting sides 2207 is matched with the shape of the inner peripheral wall of the mounting cavity 2101, so that each of the fitting sides 2207 is fitted with the corresponding position of the inner peripheral wall of the mounting cavity 2101. Each of the fitting sides 2207 is arranged in a circular arc shape, and the inner peripheral wall of the mounting cavity 2101 is arranged in a circular shape, so that the fitting tightness can be enhanced.

[0087] Further, each of the adhering sides 2207 is provided with a plurality of reinforcing ribs 213 arranged along the circumference of the mounting frame 220, each of the reinforcing ribs 213 extends along the axial direction of the mounting frame 220, so as to enhance the structural strength of the mounting frame 220.

[0088] Please refer to FIG. 15 to FIG. 26, the inner circumferential wall of the mounting cavity 2101 is formed with two assembly openings 2103, each of the circuit boards 240 is provided with a switch 241; the handheld fan 1000 further comprises two buttons 250, each of the buttons 250 is arranged in the corresponding assembly opening 2103, and each of the buttons 250 is connected with the corresponding switch 241. One of the switches 241 is used to control the start or stop of the fan housing 120, and the corresponding button 250 is the on-off button 250; the other switch 241 is used to control the rotation speed of the fan housing 120, and the corresponding button 250 is the wind speed adjustment button 250.

[0089] In order to facilitate the description below, the two switches 241 are correspondingly named as the first switch 241 and the second switch 241, and the two buttons 250 are correspondingly named as the first button 250 and the second button 250, and the reference signs remain unchanged. Please refer to FIG. 15 and FIG. 23 to FIG. 26, the inner circumferential wall of the mounting cavity 2101 is provided with a clamping protrusion 215; the side of the first button 250 away from the mounting opening 2102 is provided with a clamping recess 2501, and the side of the first button 250 close to the mounting opening 2102 is provided with an abutting portion 2502, the clamping recess 2501 is clamped and matched with the clamping protrusion 215, the abutting portion 2502 is abutted with the inner circumferential wall of the mounting cavity 2101, and the first button 250 is abutted with the first switch 241. In this way, by virtue of the setting of the clamping protrusion 215, the clamping recess 2501 and the abutting portion 2502, the first button 250 can be limited between the first switch 241 and the inner circumferential wall of the mounting cavity 2101, so as to facilitate the location and fixation of the first button 250.

[0090] Please refer to FIG. 15 to FIG. 26, the handheld housing 210 is provided with an outer shell 260, the outer shell 260 is provided with a avoiding opening 2601, the second button 250 comprises a first segment 251 and a second segment 252 connected with the first segment 251, the width of the second segment 252 is greater than that of the first segment 251, the first segment 251 is located in the avoiding opening 2601, the second segment 252 is located in the assembly opening 2103, and the second segment 252 is limited between the second switch 241 and the inner circumferential wall of the outer shell 260. The side of the second segment 252 away from the first segment 251 is provided with a groove matched with the second switch 241, so as to limit the second button 250 between the second switch 241 and the inner circumferential wall of the outer shell 260.

[0091] Specifically, referring to FIG. 15, FIG. 23 and FIG. 24, the circuit board 240 is provided with a charging interface 242, the housing 260 is provided with a plurality of through holes corresponding to the positions of the assembly openings 2103 and the position of the charging interface 242, and the through holes are formed as the aforementioned avoiding holes 2601 to expose the button 250 and the charging interface 242.

[0092] Referring to FIG. 18 and FIG. 27, the inner circumferential wall of the mounting cavity 2101 is provided with two limiting members 214 arranged in parallel, each of the limiting members 214 is arranged in an L shape, and each of the limiting members 214 is further arranged to extend along the axial direction of the mounting cavity 2101, and the two limiting members 214, the bottom wall of the mounting cavity 2101 and the inner circumferential wall of the mounting cavity 2101 are arranged to form a plug-in slot; the hand-held part 200 further comprises a supporting member 270, the supporting member 270 is plug-in matched with the plug-in slot, and the supporting member 270 further supports a circuit board 240 close to one side of the bottom wall of the mounting cavity 2101, so that the supporting strength of the circuit board 240 is enhanced.

[0093] Further, referring to FIG. 16, FIG. 23 and FIG. 27, the inner circumferential wall of the mounting cavity 2101 is partially formed as two rope passing holes 2104, and the supporting member 270 is provided with a rope passing groove 2701, the rope passing groove 2701 is communicated with the two rope passing holes 2104, so that the rope can be sequentially passed through one of the rope passing holes 2104, the rope passing groove 2701 and the other rope passing hole 2104, and the rope can be bound to the hand-held housing 260.

[0094] Referring to FIG. 28 and FIG. 29, the fan member 130 further comprises a first air guide part 136 and a second air guide part 137, both of which are arranged in the fan housing 120, the first air guide part 136 is arranged at the air outlet 122, the fan wheel 1331 is arranged at one end of the first air guide part 136 away from the air outlet 122, the second air guide part 137 is arranged between the first air guide part 136 and the fan wheel 1331, the air outlet direction of the fan wheel 1331 at least partially coincides with the air inlet direction of the second air guide part 137, and the air outlet direction of the second air guide part 137 is arranged at an angle with the air inlet direction of the first air guide part 136, so that the wind blown by the fan wheel 1331 can be guided by the second air guide part 137, the energy loss of the wind directly blowing on the first air guide part 136 is reduced, and the wind efficiency is improved.

[0095] In this embodiment, the air outlet direction of the fan wheel 1331 and the air inlet direction of the second air guide part 137 are set to fully coincide, so that the air outlet direction of the fan wheel 1331 and the air inlet direction of the second air guide part 137 can be kept consistent in the maximum range, and in turn, the wind blown by the fan wheel 1331 can be more efficiently guided in the direction by the second air guide part 137, further reducing the formation of reverse resistance wind. At the same time, the included angle formed by the air outlet direction of the second air guide part 137 and the air inlet direction of the first air guide part 136 ranges from 0 to 90 degrees, which can effectively avoid energy loss caused by the straight blowing of the wind flow to the first air guide part 136, thereby improving the efficiency of the wind. In addition, the air outlet direction of the fan wheel 1331 and the air inlet direction of the second air guide part 137 can also be set to partially coincide.

[0096] Further, along the air outlet direction, a gap is formed between the rear end of the first air guide part 136 and the front end of the second air guide part 137, and the range of the gap is 0-3 mm. The gap can effectively avoid the interference of the wind with different directions from the second air guide part 137 in the space, further reducing energy loss.

[0097] Specifically, referring to FIGS. 28 and 29, the second air guide part 137 includes an air guide ring 1371 and air guide blades 1372 arranged along the circumference of the air guide ring 1371. The extension direction of the air guide blades 1372 towards the air outlet 122 is set at an included angle with the air inlet direction of the first air guide part 136. In this embodiment, the air guide blades 1372 are arranged in several pieces on the circumference of the air guide ring 1371, and each air guide blade 1372 can be arranged at equal intervals or at unequal intervals. The air guide blades 1372 can effectively comb the wind blown by the fan wheel 1331, so that the wind entering the second air guide part 137 flows orderly along the surface of the air guide blades 1372 and towards the direction of the air outlet 122. The extension direction of the air guide blades 1372 towards the air outlet 122 is set at an included angle with the air inlet direction of the first air guide part 136, and the range of the included angle is 0-90 degrees, which can effectively avoid the wind from the air guide blades 1372 directly blowing to the first air guide part 136 to form reverse resistance wind, thereby improving the wind efficiency.

[0098] Further, the air guide blades 1372 are radially curved along the air guide ring 1371, and the second air guide part 137 is a static air guide part. Specifically, the air guide blades 1372 are arranged along the air guide ring 1371 in a curved manner, which can form a twisted curved surface or a plurality of continuous twisted curved surfaces. The range of the curved degree is 0-180 degrees. By arranging the air guide blades 1372 in a curved manner along the air guide ring 1371, the air in the second air guide part 137 can flow in a certain direction, so that the air from the second air guide part 137 can enter the air duct of the first air guide part 136 in a better direction, thereby avoiding the air directly blowing on the first air guide part 136 to form reverse resistance wind and cause energy loss. The second air guide part 137 is arranged as a static air guide part, and the air guide blades 1372 are relatively fixed in the extension direction of the air outlet 122 in the static state. At this time, the air guide blades 1372 can make the air flowing along the surface of the air guide blades 1372 more effectively enter the air duct of the first air guide part 136, thereby avoiding the relative movement between air in different directions and causing interference. In addition, the air guide blades 1372 are arranged along the air guide ring 1371 in an inclined plane at a certain angle with the radial direction, and the second air guide part 137 can also be a dynamic air guide part.

[0099] The first air guide part 136 is the grid 1321 described above, which is arranged at the inner circumferential side of the air outlet 122 of the fan housing 120 in a spaced manner and extends partially in the direction of the fan housing 120. Further, the first air guide part 136, the second air guide part 137, and the fan wheel 1331 are arranged in the air guide cylinder 131 described above. The first air guide part 136 is arranged at the air outlet end of the air guide cylinder 131 and is integrally formed with the air guide cylinder 131. In the direction from the air inlet 121 to the air outlet 122, the second air guide part 137 and the fan wheel 1331 are sequentially sleeved on the fixed shaft 1324 described above. The air guide cylinder 131 covers the first air guide part 136, the second air guide part 137, and the fan wheel 1331 in the inside of the air guide cylinder 131. The air blown by the fan wheel 1331 passes through the second air guide part 137 and the first air guide part 136 in sequence and then reaches the outside of the fan housing 120. The air guide passage formed by the air guide cylinder 131 can effectively concentrate the air blown by the fan wheel 1331, avoid scattering, increase the wind power, and improve the user's experience.

[0100] In summary, by arranging the second air guide part 137 between the first air guide part 136 and the fan wheel 1331, the air blowing direction of the fan wheel 1331 at least partially coincides with the air inlet direction of the second air guide part 137, and the air outlet direction of the second air guide part 137 forms an angle with the air inlet direction of the first air guide part 136. In this way, the air blown by the fan wheel 1331 can be effectively guided by the second air guide part 137, avoiding the air flow directly blowing on the first air guide part 136 to form reverse resistance wind, reducing energy loss, improving the efficiency of the wind, and increasing the wind power to improve the user experience. Embodiment Two

[0101] The difference between Embodiment Two and Embodiment One is that in Embodiment Two, the fan member 130 blocks the air flow in the fan part 100 from entering the handheld part 200. Details are described below.

[0102] Referring to FIGS. 30-32, the fan shell 120 further has a docking channel 127 and a communication port 124. The communication port 124 communicates the flow guide channel and the docking channel 127. The docking channel 127 is used to dock and communicate with the handheld part 200 described in Embodiment One. The fan member 130 is arranged in the flow guide channel and blocks the communication port 124. In this way, by blocking the communication port 124 with the fan member 130, the air flow in the flow guide channel can be effectively prevented from flowing into the docking channel 127, so that the fan member 130 can drive the air flow to flow through the air inlet 121, the flow guide channel, and the air outlet 122 in sequence, achieving straight in and straight out of the air flow. In this way, the length of the flow guide channel can be effectively shortened to avoid turbulence, thereby improving the air flow speed and achieving the same effect as Embodiment One.

[0103] In this embodiment, when the fan member 130 is arranged to include the air guide cylinder 131, the mounting bracket 132, and the fan piece 133 in Embodiment One, the outer peripheral wall of the air guide cylinder 131 cooperates with the inner peripheral wall of the flow guide channel to block the communication port 124. In this way, the communication port 124 is blocked conveniently. In other embodiments, the fan member 130 can be fixedly installed in the flow guide channel by adhesion, ultrasonic welding, or the like. The fan member 130 can also be installed in the flow guide channel by detachable connection such as buckle connection, threaded connection, magnetic attraction connection, or the like. Further, the outer peripheral wall of the air guide cylinder 131 is interference-fitted with the inner peripheral wall of the flow guide channel. In this way, the outer peripheral wall of the air guide cylinder 131 is tightly fitted with the inner peripheral wall of the flow guide channel, thereby enhancing the fixing strength of the air guide cylinder 131.

[0104] By way of example but not limitation, the length of the docking channel 127 is less than the length of the flow channel, for example, the length of the docking channel 127 can be half of the length of the flow channel, or for another example, the length of the docking channel 127 can be one third of the length of the flow channel, which can effectively reduce the size of the corresponding position of the fan housing 120, and in turn reduce the weight of the fan housing 120, so as to reduce the weight of the handheld fan 1000, and facilitate the lightweight design of the handheld fan 1000.

[0105] Please refer to FIGS. 30-32, further, the fan housing 120 is provided in a bent pipe shape with a curvedly connected flow guide shell 121' and docking shell 122', the air inlet 121, air outlet 122 and flow channel are arranged in the flow guide shell 121', the docking channel 127 is arranged in the docking shell 122', and the communication port 124 is arranged at the connection between the flow guide shell 121' and the docking shell 122', which is provided in this way to facilitate the processing and forming of the air inlet 121, air outlet 122, flow channel, docking channel 127 and communication port 124, and to facilitate the lightweight design of the handheld fan 1000. Obviously, in other embodiments, the fan housing 120 can also be provided in a T shape with a vertically connected flow guide shell 121' and docking shell 122', and the fan housing 120 can also be provided in other shapes, which will not be described one by one here.

[0106] Please refer to FIGS. 30-32, considering that the axial length of the fan member 130 is at least equal to the distance between the communication port 124 and the air outlet 122, the fan member 130 can block the communication port 124 when it is installed in the flow channel, therefore, if the distance between the communication port 124 and the air outlet 122 can be shortened, the axial length of the fan member 130 can also be shortened, the weight of the fan member 130 can be reduced, and the lightweight design of the fan member 130 can be facilitated, therefore, the communication port 124 is located on the side of the docking channel 127 radially close to the air outlet 122, which can effectively shorten the distance between the communication port 124 and the air outlet 122.

[0107] In other embodiments, the communication port 124 can also be located on the side of the docking channel 127 radially away from the air outlet 122, the communication port 124 can also be located in the middle of the docking channel 127 radially, or the communication port 124 can also be located at other positions of the docking channel 127 radially.

[0108] The size of the communication port 124 is positively correlated with the axial length of the fan member 130, that is, the smaller the communication port 124 is, the smaller the axial length of the fan member 130 is, the lighter the weight of the fan member 130 is, and the more conducive to the lightweight design of the fan member 130. Specifically, the communication port 124 is longitudinally shaped, the long side of the communication port 124 is perpendicular to the axial direction of the fan member 130, and the short side of the communication port 124 is parallel to the axial direction of the fan member 130, which is conducive to the fan member 130 blocking the communication port 124; further, the length of the long side of the communication port 124 is 9.0-10.0 mm, and the length of the short side of the communication port 124 is 8.0-9.0 mm, for example, the long side of the communication port 124 is 9.0 mm, and the short side of the communication port 124 is 8.69 mm, which can minimize the communication port 124 and facilitate the passage of the wire through the communication port 124.

[0109] Referring to FIGS. 30-32, in order to facilitate the molding of the communication port 124, the outer peripheral wall of the wind shield 110 is sealingly connected with the inner peripheral wall at the connection between the butt joint channel 127 and the flow guide channel, and the side of the wind shield 110 close to the air outlet 122 is formed with the communication port 124. Specifically, the wind shield 110 is arc-shaped, and the bending radius of the wind shield 110 is adapted to the radius of the inner peripheral wall of the flow guide channel, so that the flow guide channel forms a cylindrical inner peripheral wall, thereby reducing airflow turbulence, improving airflow speed, and reducing noise.

[0110] In this embodiment, the wind shield 110 is integrally formed with the fan housing 120, which can ensure that the outer peripheral wall of the wind shield 110 is sealingly connected with the inner peripheral wall at the connection between the butt joint channel 127 and the flow guide channel, so that the flow guide channel and the butt joint channel 127 only have the communication port 124 as the only communication position. In other embodiments, the wind shield 110 can be fixed to the fan housing 120 by other sealing connection methods such as bonding and ultrasonic welding, so that the outer peripheral wall of the wind shield 110 is sealingly connected with the inner peripheral wall at the connection between the butt joint channel 127 and the flow guide channel.

[0111] Through the above technical solution, when installing the fan member 130, the air guide cylinder 131 is inserted into the flow guide channel through the air outlet 122 until the outer peripheral wall of the air guide cylinder 131 completely matches the inner peripheral wall of the flow guide channel, thereby completing the installation of the fan member 130; when disassembling the fan member 130, the air guide cylinder 131 is pried out through the air outlet 122 until the outer peripheral wall of the air guide cylinder 131 is completely separated from the inner peripheral wall of the flow guide channel, thereby completing the disassembly of the fan member 130.

[0112] In other embodiments, the fan member 130 can be installed in the flow guide channel by other detachable connection methods such as threaded connection and magnetic connection, which will not be described one by one here.

[0113] Please refer to FIG. 30 to FIG. 32, in order to enhance the fixing strength of the fan component 130, the inner circumferential wall of the guide passage is provided with a second buckle position 128 near the air outlet 122, the outer circumferential wall of the air duct 131 is provided with a second buckle 1311 near the air outlet end, the second buckle 1311 is buckled with the second buckle position 128, so as to enhance the fixing strength of the fan component 130.

[0114] Further, please refer to FIG. 30 to FIG. 32, the air duct 131 is provided with an air outlet end formed as an air outlet ring 1312, the air outlet ring 1312 has an inner section 13121 and an outer section 13122 connected with the inner section 13121, the outer diameter of the inner section 13121 is smaller than the outer diameter of the outer section 13122, the end of the inner section 13121 away from the outer section 13122 is in abutment with the end face of the fan shell 120 adjacent to the air outlet 122, so as to make the outer section 13122 spaced apart from the end face of the fan shell 120 adjacent to the air outlet 122. In this way, when disassembling the fan component 130, the fingers or tools can be inserted between the outer section 13122 and the end face of the fan shell 120 adjacent to the air outlet 122, and the outer section 13122 is pried to pry out the air duct 131, thereby facilitating the prying out of the air duct 131 from the guide passage.

[0115] Please refer to FIG. 30 to FIG. 32, in order to realize the straight in and straight out of the air flow from the air duct 131, the air inlet 121 is located above the butt joint passage 127, so that the air inlet end of the air duct 131 directly faces the air inlet 121; the air outlet end of the air duct 131 directly extends out of the air outlet 122.

[0116] Further, the air inlet 121 is arranged on the cavity wall of the fan shell 120 opposite to the air flow passage 123, the cavity wall is arranged in a circular arc shape, the end face of the air duct 131 near the air inlet 121 is arranged in an arc shape matched with the shape of the cavity wall, so that the end face of the air duct 131 near the air inlet 121 directly abuts against the cavity wall, so that the air flow sucked through the air inlet 121 can be directly accelerated by the air duct 131 and blown to the user, which is beneficial to the straight in and straight out of the air flow. Embodiment three

[0117] The difference between embodiment three and embodiment two is that embodiment three seals the connection position of the fan part 100 and the handheld part 200 by the sealing connection of the fan component 130 and the baffle 110, so as to block the air flow in the fan part 100 from entering the handheld part 200, which will be described in detail below.

[0118] Please refer to FIG. 33 to FIG. 35, the fan part 100 includes a fan shell 120, a baffle 110 and a fan member 130, the baffle 110 is arranged in the fan shell 120, the fan member 130 is arranged in the airflow passage 123 and is sealedly connected with the baffle 110, so as to block the communication port 124, so that the fan member 130 can drive the airflow to flow through the air inlet 121, the flow guide passage and the air outlet 122 in sequence, the airflow is straight in and straight out, the length of the flow guide passage is effectively shortened, the phenomenon of turbulence is avoided, and the purpose of improving the airflow speed is achieved. Specifically, the baffle 110 and the fan shell 120 are integrally formed, which can enhance the connection strength of the baffle 110 and the fan shell 120, and ensure the sealing of the connection between the baffle 110 and the fan shell 120. In other embodiments, the baffle 110 and the fan shell 120 can be fixedly connected by bonding, ultrasonic welding or the like. In addition, the communication port 124 is located between the baffle 110 and the air outlet 122, which can effectively block the communication port 124 when the fan member 130 is sealedly connected with the baffle 110.

[0119] The above-mentioned sealing connection between the fan member 130 and the baffle 110 has many ways, please refer to FIG. 33 to FIG. 35, the baffle 110 and the fan shell 120 are arranged around to form part of the flow guide passage, the outer peripheral wall of the fan member 130 cooperates with the inner peripheral wall of the position of the baffle 110 on the flow guide passage to block the communication port 124, so that the sealing connection between the fan member 130 and the baffle 110 is convenient.

[0120] Specifically, the baffle 110 is arranged in an arc shape, the bending radius of the baffle 110 is matched with the radius of the inner peripheral wall of the flow guide passage, so that the flow guide passage forms a cylindrical inner peripheral wall, thereby reducing the turbulence of the airflow, improving the flow rate of the airflow, and reducing noise.

[0121] Further, the outer peripheral wall of the fan member 130 is interference-fitted with the inner peripheral wall of the position of the baffle 110 on the flow guide passage, so that the sealing of the connection between the fan member 130 and the baffle 110 is enhanced, and the fixing strength of the fan member 130 is enhanced.

[0122] By way of example but not limitation, a sealing ring can be embedded on the inner peripheral wall at the position of the baffle 110 on the outer peripheral wall of the fan member 130 or the guide channel, and when the outer peripheral wall of the fan member 130 cooperates with the inner peripheral wall at the position of the baffle 110 on the guide channel, the sealing ring is elastically extruded, so that the inner and outer peripheries of the sealing ring elastically abut against the outer peripheral wall of the fan member 130 and the inner peripheral wall at the position of the baffle 110 on the guide channel under the action of the self-rebound force, which can further enhance the sealing performance at the connection between the fan member 130 and the baffle 110. Further, the sealing ring can be a solid ring body made of a resilient material such as silica gel or rubber, or can be a hollow inflatable ring body, which is more conducive to deformation of the sealing ring under the action of external force. In other embodiments, the baffle 110 can be provided with a splicing end face, and the end face of the fan member 130 is spliced with the splicing end face to achieve the sealed connection between the fan member 130 and the baffle 110.

[0123] Referring to FIGS. 33-35, considering that the outer peripheral wall of the fan member 130 does not need to cooperate with the entire inner peripheral wall of the guide channel, but only needs to cooperate with the inner peripheral wall at the position of the baffle 110 on the guide channel, the sealed connection between the fan member 130 and the baffle 110 can be achieved, which is conducive to the sealed connection between the fan member 130 and the baffle 110. In view of this, the guide channel includes an air inlet section 1231 and an air outlet section 1232 connected in sequence from the air inlet 121 to the air outlet 122, the inner diameter of the air inlet section 1231 is smaller than the inner diameter of the air outlet section 1232, the baffle 110 is arranged around the fan housing 120 to form the air inlet section 1231, and the outer peripheral wall of the fan member 130 cooperates with the inner peripheral wall of the air inlet section 1231 at a position close to the air outlet 122, and the remaining positions on the outer peripheral wall of the fan member 130 are spaced apart from the inner peripheral wall of the air outlet section 1232.

[0124] Through the above technical solution, the air inlet section 1231 of the guide channel is arranged around the baffle 110 and the fan housing 120, so that the outer peripheral wall of the fan member 130 only needs to cooperate with the inner peripheral wall of the air inlet section 1231 to achieve the sealed connection between the fan member 130 and the baffle 110. Moreover, the inner diameter of the air inlet section 1231 is smaller than the inner diameter of the air outlet section 1232, which can make the wall thickness of the air outlet section 1232 smaller than the wall thickness of the air inlet section 1231, i.e., the wall thickness of the air outlet section 1232 is reduced, thereby reducing the weight of the air outlet section 1232, which is conducive to the light weight of the handheld fan 1000.

[0125] Please refer to FIG. 33, FIG. 34 and FIG. 36, in order to enhance the sealing connection strength of the wind deflector 110 and the fan member 130, the wind deflector 110 is provided with an extension 111 near the side close to the air outlet 122, the extension 111 has an extension surface 1111 which is connected in place with the side of the wind deflector 110 away from the docking channel 127, so that the extension surface 1111 abuts against the outer peripheral wall of the fan member 130, by this arrangement, the abutting area of the fan member 130 and the wind deflector 110 can be increased by adding the extension 111 on the wind deflector 110, and the sealing connection strength of the wind deflector 110 and the fan member 130 can be enhanced.

[0126] Specifically, the extension 111 is located below the fan member 130, so that the extension 111 can also bear the fan member 130; and the extension 111 is integrally formed with the wind deflector 110, so that the fixing strength of the extension 111 can be enhanced. In other embodiments, the extension 111 can also be located above the fan member 130; and the extension 111 and the fan housing 120 can be fixed by adhesion, ultrasonic welding or the like.

[0127] Further, please refer to FIG. 33, FIG. 34 and FIG. 36, the side of the extension 111 away from the wind deflector 110 is arranged adjacent to the side of the communication port 124 away from the air outlet 122, so that the communication port 124 can be spaced apart from the air inlet section 1231 by the extension 111, instead of being directly adjacent to the air inlet end, so that the airflow flowing to the communication port 124 can be effectively prevented. In addition, the extension surface 1111 and the communication port 124 are spaced apart in the axial direction of the communication port 124, i.e. the extension surface 1111 is located above the communication port 124, so that there is a height difference between the extension surface 1111 and the communication port 124, which can further prevent the airflow from flowing to the communication port 124. In other embodiments, the side of the extension 111 away from the wind deflector 110 and the side of the communication port 124 away from the air outlet 122 can also be spaced apart.

[0128] Please refer to FIG. 33, FIG. 34 and FIG. 36, in order to facilitate the fan member 130 to extend from the air outlet section 1232 to the extension 111, the side of the extension 111 away from the wind deflector 110 is rounded and provided with an arc-shaped guide surface 1112, the guide surface 1112 connects the extension surface 1111 and the inner peripheral wall of the air outlet section 1232, so that the fan member 130 can be guided by the guide surface 1112 when extending from the air outlet section 1232 to the extension 111, so that the purpose of facilitating the fan member 130 to extend from the air outlet section 1232 to the extension 111 can be achieved.

[0129] Please refer to FIG. 33 to FIG. 35, in order to facilitate the fan member 130 from the air outlet section 1232 into the air inlet section 1231, the guide channel also includes a connecting section 1233, the connecting section 1233 connects the air inlet section 1231 and the air outlet section 1232, the inner diameter of the connecting section 1233 is gradually expanded from the air inlet 121 to the air outlet 122, so that the inner wall of the connecting section 1233 is formed as an inclined guide slope, when the fan member 130 is extended from the air outlet section 1232 into the air inlet section 1231, the guide slope can guide the fan member 130, thereby achieving the purpose of facilitating the fan member 130 from the air outlet section 1232 into the air inlet section 1231. Specifically, the side of the extension 111 facing the docking channel 127 is connected with the inner wall of the connecting section 1233, so that the extension 111 and the inner wall of the connecting section 1233 are sealingly connected, thereby further effectively preventing airflow from flowing to the communication port 124.

[0130] Please refer to FIG. 33, FIG. 35 to FIG. 37, considering that if the length of the extension 111 in the axial direction of the guide channel can be increased, the abutting area of the extension surface 1111 and the outer wall of the fan member 130 can be increased, and the tightness of the abutting of the extension surface 1111 and the outer wall of the fan member 130 can be enhanced, thereby further effectively preventing airflow from flowing to the communication port 124, and the fixing strength of the fan member 130 can also be enhanced, therefore, the end of the extension 111 away from the baffle 110 exceeds the connection between the connecting section 1233 and the air outlet section 1232, so that the length of the extension 111 in the axial direction of the guide channel can be increased. When assembling the fan member 130 and the fan housing 120, first, the air duct 131 is extended into the air outlet section 1232 from the air outlet 122, so that the end surface of the air duct 131 abuts against the guide surface 1112; then, the air duct 131 is continuously pushed, so that the air duct 131 gradually moves under the guidance of the guide surface 1112, until the outer wall of the air duct 131 abuts against the extension surface 1111; finally, the air duct 131 is continuously pushed, so that the air duct 131 gradually moves under the guidance of the inner wall of the connecting section 1233, until the outer wall of the air duct 131 abuts against the inner wall of the air inlet section 1231, thereby completing the assembly of the fan member 130 and the fan housing 120. When disassembling the fan member 130 and the fan housing 120, the disassembly steps are in reverse order of the above-mentioned assembly steps of the fan member 130 and the fan housing 120, which will not be repeated here.

[0131] The above is only a preferred embodiment of the present application, and does not limit the patent scope of the present application, any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A hand-held fan, characterized in that The handheld fan is in a curved tubular arrangement, and the curved part is in an arc transition; The handheld fan comprises a fan part and a handheld part, the fan part is used for air supply, and the side peripheral surface of one end of the fan part is connected with and smoothly transitions to the side peripheral surface of one end of the handheld part; A baffle is arranged on the fan part or the handheld part, and the baffle is used for blocking the airflow in the fan part from entering the handheld part.

2. The hand fan of claim 1, wherein, The curved part is arranged on the fan part and close to the handheld part, and the baffle is arranged at the curved part.

3. The hand fan of claim 1, wherein, The fan part comprises a fan housing connected with the handheld part and a fan component, the fan housing has an air inlet, an air outlet and an airflow channel connecting the air inlet and the air outlet, and the baffle is arranged on the fan housing to block the airflow in the airflow channel from entering the handheld part. The fan component comprises a wind guide cylinder, a mounting bracket and a fan piece, the outer peripheral wall of the wind guide cylinder is matched with the inner peripheral wall of the fan housing, the outer peripheral wall of the mounting bracket is connected with the inner peripheral wall of the wind guide cylinder through a plurality of gratings, and the fan piece is arranged on the mounting bracket.

4. The hand fan of claim 3, wherein, A circuit board and a battery coupled with the circuit board are arranged in the handheld part; The grating is in a hollow arrangement to form a wire passing grating, two ends of the wire passing grating correspond to penetrating the inner peripheral wall of the mounting bracket and the outer peripheral wall of the wind guide cylinder, and the position of the inner peripheral wall of the fan housing matched with the wind guide cylinder is provided with a communication port communicating the wire passing grating and the handheld part, so that the fan piece is coupled with the circuit board through a wire.

5. The hand fan of claim 4, wherein, A guide structure is arranged between the outer peripheral wall of the wind guide cylinder and the inner peripheral wall of the fan housing, and the communication between the communication port and the wire passing grating is located in the guide structure.

6. The hand fan of claim 1, wherein, The fan part comprises a fan housing, a reinforcing structure and a fan component; The fan housing has an air inlet cavity wall and an airflow channel, the air inlet cavity wall is provided with a plurality of air inlets, and the inner peripheral wall of the airflow channel is arranged around the air inlet cavity wall; the reinforcing structure is arranged on the air inlet cavity wall, and the reinforcing structure is connected with the inner peripheral wall of the airflow channel; and the fan component is arranged in the airflow channel.

7. The hand fan of claim 6, wherein, The reinforcing structure is connected with the position of the inner peripheral wall of the airflow channel adjacent to the air inlet cavity wall.

8. The hand fan of claim 6, wherein, The reinforcing structure comprises a frame part and a support part, the frame part and the support part are both fixedly arranged on the air inlet cavity wall, and the frame part traverses at least the position between two adjacent air inlets; and the support part connects the outer periphery of the frame part with the position of the inner peripheral wall of the airflow channel adjacent to the air inlet cavity wall.

9. The hand fan of claim 8, wherein, The frame part is connected by a plurality of frame segments, and each frame segment and the support part have two avoidance sides connected at an angle and a fixed side connecting the two avoidance sides; Each fixed side is connected with the corresponding position of the air inlet cavity wall, so that each frame segment and the support part are located between two corresponding air inlets, and each avoidance side is inclined and offset away from the corresponding air inlet.

10. The hand fan of claim 8, wherein, A plurality of air inlets are arranged in a honeycomb shape, the frame part is arranged in a honeycomb shape to form a plurality of hexagonal frame bodies, and each frame body is arranged around the corresponding air inlet.

11. The hand fan of claim 8, wherein, The support parts are at least two, one of which is arranged along the extension direction of the air flow channel, and the other of which is arranged along a first direction perpendicular to the extension direction of the air flow channel.

12. The hand fan of claim 1, wherein, The fan part includes a fan housing, the handheld part includes a handheld housing detachably connected with the fan housing, and the baffle is arranged in the fan housing or the handheld housing to block the air flow in the fan housing from entering the handheld part; and the handheld fan further includes a mounting bracket. The handheld housing has a mounting cavity and a mounting opening communicating with the mounting cavity and the external environment, the fan housing is detachably connected with the handheld housing and covers the mounting opening, and the mounting bracket can be clamped and fixed in the mounting cavity and the fan housing when the handheld housing is detachably connected with the fan housing, so that the circuit board and the button of the handheld fan can be arranged around the outer periphery of the mounting bracket to form an integrated component with the mounting bracket.

13. The hand fan of claim 12, wherein, Opposite sides of the mounting bracket are correspondingly provided with a bayonet and a clamping groove, and an inner peripheral wall of the mounting cavity is provided with a clamping hook matched with the bayonet, and the fan housing is provided with a clamping strip matched with the clamping groove.

14. The hand fan of claim 12, wherein, One end of the handheld housing provided with the mounting opening is formed as a first docking part, an outer periphery of the first docking part is provided with a buckle, the fan housing has a second docking part, the second docking part is matched with the first docking part in a sleeved manner, and the second docking part is provided with a buckle position matched with the buckle.

15. The hand fan of claim 12, wherein, The handheld fan further includes a power supply, and the mounting bracket is clamped and fixed to press the power supply against the bottom wall of the mounting cavity.

16. The hand fan of claim 15, wherein, The mounting bracket is in a tubular shape with both ends open, and the end face of the mounting bracket is formed with a strip-shaped pressing area, and the inner peripheral wall of the mounting bracket is provided with two pressing convex parts spaced apart along the circumferential direction thereof; The pressing area is pressed against one side of the end face of the power supply, and the two pressing convex parts are pressed against the other side of the end face of the power supply, so that the power supply is pressed against the bottom wall of the mounting cavity.

17. The hand fan of claim 15, wherein, The outer peripheral wall of the mounting bracket is formed into two mounting sides at opposite sides, each mounting side is provided with a slot, and each slot is arranged through a side wall close to or away from the bottom wall of the mounting cavity to form a socket; The handheld fan further includes two circuit boards, each circuit board is inserted into the corresponding socket through the corresponding socket, and each circuit board is electrically connected with the power supply.

18. The hand fan of claim 1, wherein, The fan part includes a fan housing connected with the handheld part and a fan component, the fan housing has an air inlet, an air outlet and an air flow channel communicating between the air inlet and the air outlet, and the baffle is arranged in the fan housing to block the air flow in the air flow channel from entering the handheld part. The fan member comprises a first air guide part, a second air guide part and a fan wheel, which are all arranged in the fan housing, the first air guide part is arranged at the air outlet of the fan housing, the fan wheel is arranged at one end of the first air guide part away from the air outlet, and the second air guide part is arranged between the first air guide part and the fan wheel, the air outlet direction of the fan wheel at least partially coincides with the air inlet direction of the second air guide part, and the air outlet direction of the second air guide part is arranged at an angle with the air inlet direction of the first air guide part, so as to guide the air blown by the fan wheel through the second air guide part, and reduce the energy loss caused by the direct blowing of the air flow to the first air guide part.

19. The hand fan of claim 18, wherein: The second air guide part comprises an air guide ring and air guide blades arranged along the circumference of the air guide ring, and the extension direction of the air guide blades towards the air outlet is arranged at an angle with the air inlet direction of the first air guide part.

20. The hand fan of claim 19, wherein: The air guide blades are radially curved along the air guide ring.

21. The hand fan of claim 19, wherein: The second air guide part is a static air guide part.

22. The hand fan of claim 18, wherein: The first air guide part is a grille, which is arranged at the inner circumferential side of the air outlet of the fan housing in a spaced manner, and extends along the inner direction of the fan housing.

23. A hand-held fan, comprising: The handheld fan comprises a fan part, the fan part comprises a fan housing and a fan member, the fan housing has an air inlet, an air outlet, an air flow channel connecting the air inlet and the air outlet, a docking channel and a communication port connecting the air flow channel and the docking channel, and the fan member is arranged in the air flow channel and seals the communication port.

24. The hand fan of claim 23, wherein, The communication port is located on one side of the docking channel radially close to the air outlet.

25. The hand fan of claim 24, wherein, The fan part further comprises a baffle, an outer circumferential wall of the baffle is sealingly connected with an inner circumferential wall at a connection position of the docking channel and the air flow channel, and a part of the side of the baffle close to the air outlet penetrates to form the communication port.

26. The hand-held fan of claim 23, wherein, The fan member comprises an air guide cylinder, a mounting bracket and a fan member, an outer circumferential wall of the air guide cylinder is matched with an inner circumferential wall of the air flow channel to seal the communication port, an outer circumferential wall of the mounting bracket is connected with an inner circumferential wall of the air guide cylinder through a plurality of gratings, and the fan member is arranged in the mounting bracket.

27. The hand fan of claim 26, wherein, The inner diameter of the air inlet end of the air guide cylinder is gradually reduced from the air inlet to the air outlet; and / or, the inner diameter of the air outlet end of the air guide cylinder is gradually increased from the air inlet to the air outlet.

28. A hand-held fan, comprising: The handheld fan comprises a fan part, the fan part comprises a fan housing, a baffle and a fan member, the fan housing is provided with an air inlet, an air outlet, an air flow channel connecting the air inlet and the air outlet, a docking channel and a communication port connecting the air flow channel and the docking channel; The baffle is arranged in the fan housing, the fan member is arranged in the air flow channel and sealingly connected with the baffle to seal the communication port.

29. The hand fan of claim 28, wherein, The baffle and the fan housing are arranged around the air flow channel to form a part of the air flow channel, and an outer circumferential wall of the fan member is matched with an inner circumferential wall of the air flow channel at a position where the baffle is arranged to seal the communication port.

30. The hand fan of claim 29, wherein, The air flow passage comprises an air inlet section and an air outlet section connected in sequence from the air inlet to the air outlet, the inner diameter of the air inlet section is smaller than that of the air outlet section, the air baffle and the fan housing form the air inlet section, and the outer peripheral wall of the fan member is matched with the inner peripheral wall of the air inlet section.

31. The hand-held fan of claim 30, wherein, The air baffle is provided with an extension part on the side close to the air outlet, the extension part has an extension surface, and the extension surface is connected with the side of the air baffle away from the docking passage, so that the extension surface is in abutment with the outer peripheral wall of the fan member.

32. The hand-held fan of claim 31, wherein, The side of the extension part away from the air baffle is provided adjacent to the side of the communication opening away from the air outlet.

33. The hand fan of claim 31, wherein, The side of the extension part away from the air baffle is provided with an arc-shaped guide surface, and the guide surface connects the extension surface and the inner peripheral wall of the air outlet section.

34. The hand fan of claim 30, wherein, The air flow passage further comprises a connecting section, the connecting section connects the air inlet section and the air outlet section, and the inner diameter of the connecting section is gradually increased from the air inlet to the air outlet.

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