Waist hanging fan

Abstract

The waist hanging fan comprises a shell assembly, a brushless motor, a power source module and a light source module, the shell assembly is provided with an installation cavity, a first air opening and a second air opening, the brushless motor is arranged in the installation cavity and communicated with the first air opening and the second air opening, and the power source module is arranged in the shell assembly and used for supplying power to the brushless motor. The light source module is arranged on the shell assembly and electrically connected with the power source module, and compared with a brush motor, the brushless motor can be smaller in size, so that the miniaturization design of the waist hanging fan is achieved. The light source module can expand the use scene of the waist-hanging fan, for example, the light source module is used for illumination during outdoor riding at night, and the use convenience of the waist-hanging fan is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially a kind of hanging waist fan. BACKGROUND

[0002] Hanging waist fan is generally used to be hung in user's waist, and it is used to dissipate heat for user in hot weather outside.In related technology, hanging waist fan generally uses brush motor, and its volume is relatively large, so that the volume of hanging waist fan is difficult to further reduce. SUMMARY

[0003] The utility model embodiment provides a kind of hanging waist fan, it is favorable to realize the miniaturization design of hanging waist fan.

[0004] A kind of hanging waist fan, comprising:

[0005] Shell assembly, with installation cavity, and first air port and second air port;

[0006] Brushless motor, is located in the installation cavity and is connected to the first air port and the second air port;

[0007] Power module, be located in the shell assembly and be used to power supply for the brushless motor;And

[0008] Light source module, be located in the shell assembly and be electrically connected with the power module.

[0009] In one of the embodiments, one end of the shell assembly has the first air port, the opposite end of the shell assembly has the second air port, and the rotation axis of the brushless motor passes through the first air port and the second air port.

[0010] In one of the embodiments, the shell assembly includes a first sleeve and a second sleeve located in the installation cavity, and in the direction of the rotation axis of the brushless motor, the first sleeve is sleeved and clamped at one end of the brushless motor, and the second sleeve is sleeved and clamped at the opposite end of the brushless motor, the first air port is connected to the first sleeve, and the second air port is connected to the second sleeve.

[0011] In one of the embodiments, the inner side of the first sleeve has a first sunken platform, the inner side of the second sleeve has a second sunken platform, the brushless motor has an outer cylinder, one end of the outer cylinder extends into the first sleeve and abuts against the first sunken platform, and the opposite end of the outer cylinder extends into the second sleeve and abuts against the second sunken platform.

[0012] In one of the embodiments, the inner side of the first sleeve has a first air guide surface, and the inner side of the second sleeve has a second air guide surface, the first air guide surface is a conical surface with a diameter gradually decreasing from the first air outlet to the brushless motor, and the second air guide surface is a conical surface with a diameter gradually decreasing from the second air outlet to the brushless motor.

[0013] In one of the embodiments, the inner diameter of the outer cylinder is not less than the inner diameter of the first sink near the first sink, and the inner diameter of the outer cylinder is not greater than the inner diameter of the second sink near the second sink.

[0014] In one of the embodiments, the shell assembly comprises an open snap ring arranged at the opening of the mounting cavity, the open snap ring is sleeved and clamped on the brushless motor, and the open snap ring is located between the first sleeve and the second sleeve in the direction of the rotating axis of the brushless motor.

[0015] In one of the embodiments, the shell assembly comprises oppositely arranged first side shell and second side shell, the first side shell and the second side shell are buckled to form the mounting cavity, and the first side shell and the second side shell press the outer periphery of the open snap ring respectively.

[0016] In one of the embodiments, the shell assembly comprises oppositely arranged first cover shell and second cover shell, the first cover shell is buckled to one end of the first side shell and the second side shell and has the first air outlet, and the second cover shell is buckled to the opposite end of the first side shell and the second side shell and has the second air outlet.

[0017] In one of the embodiments, the waist hanging fan comprises any one of the following schemes:

[0018] The first side shell and the second side shell form a containing cavity arranged at intervals with the mounting cavity, the waist hanging fan comprises a circuit board and a button, the power module and the circuit board are arranged in the containing cavity, and the circuit board is electrically connected with the power module, the brushless motor and the light source module respectively; the button is arranged on the same side of the first cover shell, and the light source module is arranged on the same side of the second cover shell.

[0019] The waist hanging fan comprises a first hook and a second hook, the first hook is fixedly connected to the side of the first side shell away from the brushless motor, and the free end of the first hook extends to the second cover shell; the second hook is fixedly connected to the side of the second side shell away from the brushless motor, and the free end of the second hook extends to the first cover shell.

[0020] The hanging waist fan comprises a first hanging ear and a second hanging ear, the first hanging ear is fixedly connected to at least one of the first side shell and the second side shell and located at one side of the shell assembly, and the second hanging ear is fixedly connected to at least one of the first side shell and the second side shell and located at the other side of the shell assembly.

[0021] The hanging waist fan comprises a shell assembly, a brushless motor, a power module and a light source module. The shell assembly has a mounting cavity, a first air outlet and a second air outlet. The brushless motor is arranged in the mounting cavity and is connected to the first air outlet and the second air outlet. The power module is arranged in the shell assembly and is used to supply power to the brushless motor. The light source module is arranged in the shell assembly and is electrically connected to the power module. Compared with a brush motor, the size of the brushless motor can be smaller, so that the hanging waist fan can be designed to be small. The light source module can expand the use scene of the hanging waist fan, such as lighting for outdoor night riding, and improve the use convenience of the hanging waist fan. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 It is a schematic diagram of the hanging waist fan of an embodiment;

[0024] Figure 2 It is Figure 1 It is a schematic diagram of another view of the hanging waist fan shown in the figure;

[0025] Figure 3 It is Figure 1 It is an exploded view of the hanging waist fan shown in the figure;

[0026] Figure 4 It is Figure 3 It is an exploded view of another view of the hanging waist fan shown in the figure;

[0027] Figure 5 It is Figure 1 It is a sectional view of the hanging waist fan shown in the figure;

[0028] Figure 6 It is Figure 5 It is an enlarged schematic diagram of the hanging waist fan shown in the figure;

[0029] Figure 7 It is Figure 5 It is an enlarged schematic diagram of the hanging waist fan shown in the figure.

[0030] Reference signs:

[0031] hanging waist fan 10, shell assembly 100, mounting cavity 100a, first air outlet 100b, second air outlet 100c, accommodating cavity 100d, first sleeve 110, first sunken platform 111, first air guide surface 113, second sleeve 120, second sunken platform 121, second air guide surface 123, opening snap ring 130, first side shell 141, first mounting groove 141a, second side shell 143, second mounting groove 143a, first cover shell 151, first step portion 1511, second cover shell 153, second step portion 1531, brushless motor 200, outer cylinder 210, driving assembly 230, power supply module 300, light source module 400, circuit board 500, button 600, first hook 710, second hook 720, first ear hook 810, second ear hook 820 DETAILED DESCRIPTION

[0032] The following detailed description of the preferred embodiments is presented in order to better demonstrate the preferred mode of the present application. This description is not intended to limit the application in any way. It is intended to illustrate the general principles of the application.

[0033] It should be understood that, in order to facilitate the understanding of the present application, the terms "mounting", "connecting", "coupling" and "mounting" in the following description refer to the connection relationship in the drawings. For example, "connecting" can refer to permanent connection or detachable connection. In addition, "connecting" can also refer to direct connection or indirect connection, or connection through other auxiliary components. Therefore, the above terms should not be a limitation on the actual connection of the elements of the present application.

[0034] It should be understood that the terms "length", "width", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "upper", "lower", "outer" and "inner" refer to the orientation or positioning relationship in the drawings to facilitate the understanding of the present application, and do not limit the actual position or orientation of the present application. Therefore, the above terms should not be a limitation on the actual position of the elements of the present application.

[0035] It should be understood that the terms "first", "second", "one", "a" and "one" in the following description refer to "at least one" or "one or more" in the embodiments. In particular, the term "a" can refer to "one" in one embodiment, and can refer to "more than one" in another embodiment. Therefore, the above terms should not be a limitation on the actual number of elements of the present application.

[0036] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show the preferred embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0037] Reference Figure 1 And Figure 2 The embodiments of the present application disclose a waist fan 10, which has a relatively small volume, is convenient to carry, can be hung on the waist of a user or a backpack shoulder strap, a collar and the like, and cools the user. In some embodiments, the waist fan 10 can also be hung on the handle or body of a bicycle and the like, and used to cool the user, thereby expanding the use scenarios.

[0038] Meanwhile, in combination with Figure 3 , Figure 4 And Figure 5 The waist fan 10 includes a shell assembly 100, a brushless motor 200, a power module 300 and a light source module 400. The shell assembly 100 is hollow, used to provide rigid support for the entire structure, and has a mounting cavity 100a and first and second air outlets 100b and 100c. The brushless motor 200 is arranged in the mounting cavity 100a and is connected to the first and second air outlets 100b and 100c. In some embodiments, the first air outlet 100b is used for air outlet, and the second air outlet 100c is used for air inlet, that is, the brushless motor 200 is used to guide external air to enter the brushless motor 200 from the second air outlet 100c and then be blown out from the first air outlet 100b. In other embodiments, the first air outlet 100b is used for air inlet, and the second air outlet 100c is used for air outlet, which depends on the mounting posture of the brushless motor 200 in the shell assembly 100, which will not be described here.

[0039] The power module 300 is arranged in the shell assembly 100 and used to supply power to the brushless motor 200. In some embodiments, the power module 300 includes a lithium battery that can be repeatedly charged and discharged, and with the progress of battery technology, its volume is reduced while the endurance is steadily improved. Further, in some embodiments, the power module 300 includes a cylindrical lithium battery that can be repeatedly charged and discharged, and its manufacturing process is relatively mature.

[0040] In some embodiments, the shell assembly 100 has a receiving cavity 100d spaced apart from the mounting cavity 100a, the waist-mounted fan 10 includes a circuit board 500, the power module 300, the circuit board 500 and the light source module 400 are arranged in the receiving cavity 100d, and the circuit board 500 is electrically connected to the power module 300, the brushless motor 200 and the light source module 400, respectively. The circuit board 500 can realize the electrical connection between the light source module 400 and the power module 300, so as to supply power to the light source module 400 by the power module 300. The circuit board 500 can integrate the control circuit of the brushless motor 200 and the power management unit, etc. The waist-mounted fan 10 can further include a button 600 exposed to the shell assembly 100, and the button 600 is arranged corresponding to a trigger structure such as a potzai piece on the circuit board 500, so as to control the start and stop of the brushless motor 200, etc. Of course, in other embodiments, the button 600 can be a virtual button, such as a virtual button realized by a touchpad or a touch screen.

[0041] In some embodiments, the light source module 400 is not limited to an LED lamp, and the shell assembly 100 can be provided with two buttons 600, one of which is used for start and stop control of the brushless motor 200, and the other is used for controlling the opening and closing of the light source module 400.

[0042] The above waist-mounted fan 10 includes a shell assembly 100, a brushless motor 200, a power module 300 and a light source module 400. The shell assembly 100 has a mounting cavity 100a, a first air outlet 100b and a second air outlet 100c. The brushless motor 200 is arranged in the mounting cavity 100a and is connected to the first air outlet 100b and the second air outlet 100c. The power module 300 is arranged in the shell assembly 100 and is used to supply power to the brushless motor 200. The light source module 400 is arranged in the shell assembly 100 and is electrically connected to the power module 300. Compared with a brush motor, the size of the brushless motor 200 can be smaller, so as to realize the miniaturization design of the waist-mounted fan 10 and improve the structural compactness of the waist-mounted fan 10. The light source module 400 can expand the use scene of the waist-mounted fan 10, such as lighting for outdoor night riding, and improve the use convenience of the waist-mounted fan 10.

[0043] In some embodiments, the shell assembly 100 has a first air outlet 100b at one end thereof, and a second air outlet 100c at the opposite end thereof, i.e. the first air outlet 100b and the second air outlet 100c are arranged at opposite ends of the shell assembly 100 in a one-to-one correspondence, for example, the first air outlet 100b and the second air outlet 100c are arranged at opposite ends of the waist hanging fan 10 in a height direction. When the waist hanging fan 10 is hung at the user's waist or the collar, etc., the height direction is generally parallel to the height direction. Further, in this embodiment, the rotation axis of the brushless motor 200 passes through the first air outlet 100b and the second air outlet 100c, i.e. the extension direction of the rotation axis of the brushless motor 200 is substantially parallel to the height direction of the waist hanging fan 10, so as to obtain a substantially linearly extending air duct, reduce the air resistance, ensure the wind speed while reducing the noise, and improve the heat dissipation efficiency.

[0044] In some embodiments, the shell assembly 100 can include a first sleeve 110 and a second sleeve 120 arranged in the mounting cavity 100a. The first sleeve 110 and the second sleeve 120 are respectively in a cylindrical shape, and in the direction of the rotation axis of the brushless motor 200, the first sleeve 110 is sleeved and clamped at one end of the brushless motor 200, and the second sleeve 120 is sleeved and clamped at the opposite end of the brushless motor 200. The first air outlet 100b is connected to the first sleeve 110, and the second air outlet 100c is connected to the second sleeve 120. Specifically, referring to Figure 3 and Figure 4 The brushless motor 200 has an outer cylinder 210 and a driving assembly 230 arranged in the outer cylinder 210. The driving assembly 230 is connected to the outer cylinder 210, and the output end thereof is connected with an impeller and can drive the impeller to rotate relative to the outer cylinder 210, so as to guide the air to flow from one end of the outer cylinder 210 to the opposite end of the outer cylinder 210 along the rotation axis direction of the driving assembly 230. The rotation axis of the driving assembly 230 is the rotation axis of the brushless motor 200. The assembling mode of the first sleeve 110 and the second sleeve 120 with the outer cylinder 210 is beneficial to assembly and improves the assembly efficiency of the waist hanging fan 10. On the other hand, the inner surfaces of the cylindrical first sleeve 110 and the second sleeve 120 are easy to form smooth curved surfaces, so as to reduce the air resistance and the noise.

[0045] Further, referring to Figure 5 、 Figure 6 and Figure 7The inner side of the first sleeve 110 has a first sink 111, the inner side of the second sleeve 120 has a second sink 121, one end of the outer cylinder 210 extends into the first sleeve 110 and abuts against the first sink 111, and the opposite end of the outer cylinder 210 extends into the second sleeve 120 and abuts against the second sink 121. The first sink 111 can limit the outer cylinder 210 in the first sleeve 110, that is, in the process of assembling the first sleeve 110 to the outer cylinder 210 of the brushless motor 200, when the outer cylinder 210 abuts against the first sink 111, it is considered that the assembly of the outer cylinder 210 and the first sleeve 110 is in place. Similarly, the second sink 121 can limit the outer cylinder 210 in the second sleeve 120, that is, in the process of assembling the second sleeve 120 to the outer cylinder 210 of the brushless motor 200, when the outer cylinder 210 abuts against the second sink 121, it is considered that the assembly of the outer cylinder 210 and the second sleeve 120 is in place, thereby improving the assembly efficiency.

[0046] With reference to Figure 6 In some embodiments, the inner diameter of the outer cylinder 210 is not less than the inner diameter of the first sink 111 near the first sink 111. In other words, the inner side surface of the outer cylinder 210 can slightly protrude from the inner side surface of the first sink 111 at the joint of the first sink 111 and the outer cylinder 210, or the two can be connected to form a nearly continuous smooth curved surface. In the process of driving the air to flow from one end of the outer cylinder 210 to the other end by the driving assembly 230 of the brushless motor 200, since the inner diameter of the outer cylinder 210 is not less than the inner diameter of the first sink 111, this structure can avoid the airflow from the outer cylinder 210 impacting the end of the first sleeve 110, thereby reducing the wind resistance and noise.

[0047] With reference to Figure 7 Similarly, the inner diameter of the outer cylinder 210 is not greater than the inner diameter of the second sink 121 near the second sink 121. In other words, the inner side surface of the second sink 121 can slightly protrude from the inner side surface of the outer cylinder 210 at the joint of the second sink 121 and the outer cylinder 210, or the two can be connected to form a nearly continuous smooth curved surface. In the process of driving the air to flow into the outer cylinder 210 from the second sleeve 120 by the driving assembly 230 of the brushless motor 200, since the inner diameter of the outer cylinder 210 is not greater than the inner diameter of the second sink 121, this structure can avoid the airflow flowing into the outer cylinder 210 impacting the end of the outer cylinder 210, thereby reducing the wind resistance and noise.

[0048] Further, with reference to Figure 5The inner side of the first sleeve 110 has a first air guide surface 113, and the inner side of the second sleeve 120 has a second air guide surface 123. The first air guide surface 113 is a conical surface with a diameter gradually decreasing from the first air outlet 100b to the brushless motor 200, and the second air guide surface 123 is also a conical surface with a diameter gradually decreasing from the second air outlet 100c to the brushless motor 200. The conical first and second air guide surfaces 113 and 123 are beneficial for the processing and forming of the first and second sleeves 110 and 120, for example, providing a draft angle for the injection molding of the first and second sleeves 110 and 120. In addition, the smooth curved surfaces can also reduce air resistance and noise.

[0049] In combination Figure 3 and Figure 4 In some embodiments, the shell assembly 100 can include an open snap ring 130 arranged at the opening of the mounting cavity 100a. The open snap ring 130 is sleeved and clamped on the outer cylinder 210 of the brushless motor 200, and is located between the first sleeve 110 and the second sleeve 120 in the direction of the rotation axis of the brushless motor 200. The cross section of the open snap ring 130 is in the shape of an open ring. When the circumference of the open snap ring 130 is squeezed, the width of the opening can be reduced, and thus the outer cylinder 210 of the brushless motor 200 arranged inside can be clamped. In other words, in the direction of the rotation axis of the brushless motor 200, the first sleeve 110, the open snap ring 130, and the second sleeve 120 are arranged in sequence. The open snap ring 130 is sleeved outside the outer cylinder 210 of the brushless motor 200 and can be squeezed to firmly clamp the outer cylinder 210, thereby achieving reliable positioning of the brushless motor 200 in the shell assembly 100. This method is also beneficial for the assembly of the brushless motor 200 and the shell assembly 100, reduces the number of fasteners such as screws, and improves the assembly efficiency while reducing the cost.

[0050] Further, the shell assembly 100 comprises oppositely arranged first side shell 141 and second side shell 143, the first side shell 141 and the second side shell 143 are buckled to enclose the mounting cavity 100a and the accommodating cavity 100d arranged in the mounting cavity 100a, and the first side shell 141 and the second side shell 143 press the outer periphery of the open snap ring 130 respectively. One of the first side shell 141 and the second side shell 143 can have a buckle, and the other has a clamping hole. In the assembly process, after the power module 300, the circuit board 500, the light source module 400, and the brushless motor 200 provided with the open snap ring 130, the first sleeve 110, and the second sleeve 120 are assembled in one of the first side shell 141 and the second side shell 143, the other of the first side shell 141 and the second side shell 143 is buckled to form the mounting cavity 100a and the accommodating cavity 100d, and the open snap ring 130 is extruded by the first side shell 141 and the second side shell 143. By combining the reinforcing rib structure on the surface of the first side shell 141, the second side shell 143, or the open snap ring 130, the reliable positioning of the brushless motor 200 in the shell assembly 100 can be realized. This structure does not need to use screws, bolts, etc. to realize the positioning and fixation of the brushless motor 200 in the shell assembly 100, and the assembly efficiency is higher; because the number of screws and other parts is reduced, the cost is also reduced accordingly.

[0051] In particular, with reference to Figure 4 , the first side shell 141 can have a first mounting groove 141a communicating with the mounting cavity 100a, and Figure 3 , the second side shell 143 can have a second mounting groove 143a communicating with the mounting cavity 100a, and the first mounting groove 141a and the second mounting groove 143a are arranged correspondingly. One side of the circuit board 500 can be embedded in the first mounting groove 141a, and after the first side shell 141 and the second side shell 143 are assembled and fixed, the other side of the circuit board 500 is embedded and fixed in the second mounting groove 143a, so that the reliable positioning of the circuit board 500 in the shell assembly 100 is realized, and the circuit board 500 can be used as a support to realize the reliable positioning of the physical button 600 in the shell assembly 100. This structure can also improve the assembly efficiency, and reduce the cost by reducing the number of screws and other parts.

[0052] Further, the shell assembly 100 can comprise oppositely arranged first cover shell 151 and second cover shell 153, the first cover shell 151 is buckled to one end of the first side shell 141 and the second side shell 143 and has a first air port 100b, and the second cover shell 153 is buckled to the other end of the first side shell 141 and the second side shell 143 and has a second air port 100c. The button 600 is arranged on the same side of the first cover shell 151, and the light source module 400 is arranged on the same side of the second cover shell 153.

[0053] Exemplarily, one end of the first side shell 141 and the second side shell 143 is provided with a buckle, the first cover shell 151 is provided with a clamping hole, the first cover shell 151 is buckled to the one end of the assembled first side shell 141 and the second side shell 143, and the assembly and fixation of the one end of the first side shell 141 and the second side shell 143 to the first cover shell 151 can be realized through the clamping of the buckle and the clamping hole. Similarly, the other end of the first side shell 141 and the second side shell 143 can be provided with a buckle, the second cover shell 153 is provided with a clamping hole, the second cover shell 153 is buckled to the other end of the assembled first side shell 141 and the second side shell 143, and the assembly and fixation of the first side shell 141 and the second side shell 143 to the second cover shell 153 can be realized through the clamping of the buckle and the clamping hole. Of course, the positions of the buckle and the clamping hole can be exchanged. This structure does not need to use screws, bolts and the like to realize the limiting and fixation of the shell assembly 100, and the assembly efficiency is higher; since the number of screws and other parts is reduced, the cost is also correspondingly reduced.

[0054] In particular, with reference to Figure 5 , the first cover shell 151 can be provided with a first step portion 1511 at the first air port 100b, and the end of the first sleeve 110 away from the second sleeve 120 abuts against the first step portion 1511, so that after the assembly of the first cover shell 151 with the first side shell 141 and the second side shell 143, the reliable limiting of the first sleeve 110 in the installation cavity 100a is realized, and the loosening is prevented. Similarly, the second cover shell 153 can be provided with a second step portion 1531 at the second air port 100c, and the end of the second sleeve 120 away from the first sleeve 110 abuts against the second step portion 1531, so that after the assembly of the second cover shell 153 with the first side shell 141 and the second side shell 143, the reliable limiting of the second sleeve 120 in the installation cavity 100a is realized, and the loosening is prevented, and the entire brushless motor 200 is reliably limited and fixed in the installation cavity 100a, so that the assembly efficiency is improved, and the brushless motor 200 is prevented from loosening from the shell assembly 100.

[0055] Further, with reference to Figure 3 and Figure 4, the hanging waist fan 10 can include a first hook 710 and a second hook 720. The first hook 710 is fixedly connected to a side of the first side shell 141 away from the brushless motor 200, and the fixedly connected manner is not limited to fasteners such as screws or injection molding, and the free end of the first hook 710 extends toward the second cover shell 153. The second hook 720 is fixedly connected to a side of the second side shell 143 away from the brushless motor 200, and the fixedly connected manner is not limited to fasteners such as screws or injection molding, and the free end of the second hook 720 extends toward the first cover shell 151. The length of the first hook 710 can be greater than that of the second hook 720. The width of the first hook 710 can also be greater than that of the second hook 720. Exemplarily, in the user's use process, the hanging waist fan 10 can be hung around the waist through the first hook 710, air is taken in from the second air outlet 100c toward the leg (i.e., downward), air is taken out from the first air outlet 100b toward the head (i.e., upward), and thus heat is dissipated for the upper body; when the user hangs the hanging waist fan 10 on the backpack shoulder strap or the collar through the second hook 720, air is blown to the chest cavity (i.e., downward) through the first air outlet 100b, and thus heat can also be dissipated for the upper body.

[0056] When the user hangs the hanging waist fan 10 on the handlebar of the bicycle through the first hook 710, the first air outlet 100b, i.e., the air outlet, can be directed toward the user for heat dissipation, and the light source module 400 on the side of the second air outlet 100c can be directed toward the forward direction of the bicycle, and thus can be used for lighting during outdoor cycling. Of course, the lighting scene of the hanging waist fan 10 is not limited to this, and details are not described herein.

[0057] Further, the hanging waist fan 10 can include a first lug 810 and a second lug 820. The first lug 810 is fixedly connected to at least one of the first side shell 141 and the second side shell 143 and located on one side of the shell assembly 100, and the second lug 820 is fixedly connected to at least one of the first side shell 141 and the second side shell 143 and located on the opposite side of the shell assembly 100. The first lug 810 can be injection molded with the first side shell 141 or the second side shell 143. In the embodiment of the present application, part of the first lug 810 is integrally formed with the first side shell 141, and the other part is integrally formed with the second side shell 143. After the first side shell 141 and the second side shell 143 are assembled and fixed, the complete first lug 810 is formed. The structure of the second lug 820 is similar to that of the first lug 810, and details are not described herein.

[0058] The first lug 810 and the second lug 820 can be used to pass the hanging rope or the hanging belt, so as to hang the hanging waist fan 10 on the neck or other objects. For example, the hanging waist fan 10 can be more reliably bound to the handlebar of the bicycle through the hanging rope or the hanging belt, so as to prevent the hanging waist fan 10 from easily falling off the bicycle, and thus the use scene of the hanging waist fan 10 is expanded.

[0059] Each technical feature of the above-described embodiments can be combined with any other technical feature, and for the sake of brevity, not all possible combinations are described, but it is understood that the scope of the disclosure encompasses all such possible combinations.

[0060] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A hanging waist fan, characterized by, The application relates to a hanging waist fan, which comprises the following components: a shell assembly with a mounting cavity and a first air outlet and a second air outlet; a brushless motor arranged in the mounting cavity and connected to the first air outlet and the second air outlet; a power module arranged in the shell assembly and used for supplying power to the brushless motor; and a light source module arranged in the shell assembly and electrically connected to the power module. One end of the shell assembly is provided with the first air outlet, and the opposite end of the shell assembly is provided with the second air outlet, and the rotating axis of the brushless motor passes through the first air outlet and the second air outlet.

2. The hanging waist fan of claim 1, wherein, The shell assembly comprises a first sleeve and a second sleeve arranged in the mounting cavity, and in the direction of the rotating axis of the brushless motor, the first sleeve is sleeved and clamped on one end of the brushless motor, the second sleeve is sleeved and clamped on the opposite end of the brushless motor, the first air outlet is connected to the first sleeve, and the second air outlet is connected to the second sleeve.

3. The hanging waist fan of claim 2, wherein, The inner side of the first sleeve is provided with a first sunken platform, the inner side of the second sleeve is provided with a second sunken platform, the brushless motor is provided with an outer cylinder, one end of the outer cylinder extends into the first sleeve and abuts against the first sunken platform, and the opposite end of the outer cylinder extends into the second sleeve and abuts against the second sunken platform.

4. The hanging waist fan of claim 3, wherein, The inner side of the first sleeve is provided with a first air guide surface, the inner side of the second sleeve is provided with a second air guide surface, the first air guide surface is a conical surface and gradually reduces in diameter from the first air outlet to the brushless motor, and the second air guide surface is a conical surface and gradually reduces in diameter from the second air outlet to the brushless motor.

5. The hanging waist fan of claim 4, wherein, The inner diameter of the outer cylinder is not less than the inner diameter of the first sunken platform near the first sunken platform, and the inner diameter of the outer cylinder is not greater than the inner diameter of the second sunken platform near the second sunken platform.

6. The hanging waist fan of claim 4, wherein, The shell assembly comprises an open clamping ring arranged in the mounting cavity and sleeved and clamped on the brushless motor, and in the direction of the rotating axis of the brushless motor, the open clamping ring is located between the first sleeve and the second sleeve.

7. The hanging waist fan of claim 3, wherein, The shell assembly comprises oppositely arranged first and second side shells, the first side shell is engaged with the second side shell to form the mounting cavity, and the first side shell and the second side shell respectively abut against the outer periphery of the open clamping ring.

8. The hanging waist fan of claim 7, wherein, The shell assembly comprises oppositely arranged first and second cover shells, the first cover shell is engaged with one end of the first side shell and the second side shell and is provided with the first air outlet, and the second cover shell is engaged with the opposite end of the first side shell and the second side shell and is provided with the second air outlet.

9. The hanging waist fan of claim 8, wherein, The first side shell and the second side shell form a containing cavity which is arranged in a spaced mode with the mounting cavity, the hanging waist fan comprises a circuit board and a key, the power module and the circuit board are arranged in the containing cavity, and the circuit board is electrically connected to the power module, the brushless motor and the light source module respectively; the key is arranged on the same side of the first cover shell, and the light source module is arranged on the same side of the second cover shell.

10. The hanging waist fan of claim 9, wherein, ​ ​ The waist-hung fan comprises a first hook and a second hook, the first hook is fixedly connected to a side of the first side shell away from the brushless motor, and a free end of the first hook extends toward the second cover shell; the second hook is fixedly connected to a side of the second side shell away from the brushless motor, and a free end of the second hook extends toward the first cover shell. The waist-hung fan comprises a first hook and a second hook, the first hook is fixedly connected to a side of the first side shell away from the brushless motor, and a free end of the first hook extends toward the second cover shell; the second hook is fixedly connected to a side of the second side shell away from the brushless motor, and a free end of the second hook extends toward the first cover shell.

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