Cap fan

Abstract

The utility model discloses a quick locking and anti-loosening of shell is realized through the rotary joint structure of front cover and rear cover, and the assembly is reliable. The innovative claw slide and the design of the buckle hole of the buckle arm make the installation frame containing the control panel and the battery compartment cover can be quickly disassembled and assembled with the main body without tools, and the degree of modularization is high, which greatly improves the production, maintenance and replacement efficiency. The shell adopts a honeycomb ventilation surface, effectively optimizes the airflow channel, reduces wind resistance and turbulence, and improves the stability and efficiency of air supply. The motor slot is recessed in the center of the rear cover, combined with the split battery compartment design, making the structure more compact and the weight distribution more optimal, especially suitable for cap wearing scenes. In addition, this design supports flexible installation methods and functional expansion, successfully solving the problems of low assembly efficiency, inconvenient maintenance, poor airflow and poor expansion of traditional fans.

Description

Technical Field

[0001] This utility model relates to a small fan, specifically a hat fan. Background Technology

[0002] Currently, small fans typically consist of a front cover and a rear cover fixed together with screws to form a housing. The motor and fan blades are installed inside the housing, while the main control board and battery are placed in a compartment. The compartment is then fixed to the back of the housing with screws.

[0003] Furthermore, the current ventilation system consists of a grid structure radiating outwards from the center. The airflow is divided by these grids, inevitably causing the greatest impact on the central area and resulting in unstable airflow. Moreover, the current outer surface of the hull is largely obstructed by the installation of solar panels, further hindering airflow and significantly reducing exhaust efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of low installation efficiency, lack of modularity in structure, and troublesome replacement or upgrade of hat fans.

[0005] The technical solution to the problem that this utility model aims to solve is as follows: A hat-shaped fan has a housing composed of a front cover and a rear cover, with fan blades disposed inside the housing. Its features include: matching locking arms and locking grooves on the inner sides of the front and rear covers; the ends of the locking arms are L-shaped; after contact, the rear and front covers rotate in opposite directions, with the L-shaped ends of the locking arms rotating into the locking grooves to achieve assembly; a mounting groove for mounting a motor is formed in the central area of ​​the rear ventilation surface of the rear cover, recessed towards the interior of the housing; a mounting slide is provided around the edge of the mounting groove; a mounting frame containing a control board has a front end with a claw matching the mounting slide; the claw slides past the mounting slide and engages with the edge of the mounting slide to fix the mounting frame; and buckle holes are provided on both sides of the bottom of the mounting frame. A battery compartment cover slides along the inner frame walls of the mounting frame via buckle arms on both sides into the buckle holes, and then is fixed by the end of the buckle arms resting on the edge of the buckle hole.

[0006] Preferably, the front surface of the front cover and the rear surface of the rear cover are both honeycomb-shaped ventilation surfaces, and the sides of the front cover and the rear cover are cylindrical, forming a duct for the motor inside the housing after the front cover and the rear cover are assembled.

[0007] Preferably, the front or rear cover is provided with an anti-rotation structure on its side. The anti-rotation structure is respectively provided with a locking block and an anti-rotation latch on the front and rear covers. One side of the locking block is provided with a progressive slope, and after passing through the progressive slope is an anti-rotation groove. When the front and rear covers rotate in opposite directions, the anti-rotation latch slides over the progressive slope and falls into the anti-rotation groove to achieve anti-rotation separation of the front and rear covers.

[0008] Preferably, a connecting seat with a through hole is provided on one side of the housing. A mounting seat for mounting the housing on other objects is provided. A rotating pin passes through the mounting seat and the connecting seat to realize the installation of the housing and the mounting seat. The side of the rotating pin is provided with a positioning plane. When the rotating pin passes through the mounting seat, it rotates synchronously with the mounting seat.

[0009] Preferably, the mounting base is a clamp with a mounting opening, through which the mounting base, along with the housing, is clamped onto the edge of an object that matches the mounting opening.

[0010] Preferably, a solar panel mounting frame is also provided on the mounting base, which is connected to the mounting base by screws or a sliding structure.

[0011] Preferably, the mounting base includes a mounting swivel leg, a support body above the leg, and a base extending downward from the support body. The support body is also provided with a limiting lock track, a locking tongue extending towards the base by a spring, and a pressure plate abutting the other end of the spring above the support body.

[0012] Preferably, the pressure plate is a solar panel mounting frame, which is connected to the mounting base via a sliding insert structure.

[0013] The beneficial effects of this utility model are as follows: This invention achieves a reliable housing locking mechanism through the structure of the front and rear covers. Furthermore, the innovative combination of claws and slides, and latches and holes, enables rapid assembly and disassembly of the motor mounting frame, battery compartment cover, and main housing. This modular design greatly simplifies the assembly process, allowing for the installation and replacement of major components without tools, improving production efficiency and facilitating later maintenance, battery replacement, or functional upgrades for users. Additionally, the housing structure optimizes airflow channels and airflow stability.

[0014] In addition, this fan features flexible installation options and functional expansion, as well as efficient space utilization and structural integration. The motor mounting slot is cleverly recessed in the center of the rear cover, and the control board is integrated into a separate mounting frame, resulting in a more compact overall structure and high space utilization. The separate design of the battery compartment and the main body further optimizes weight distribution and appearance, making it particularly suitable for applications such as hats where lightweight and low center of gravity are required.

[0015] This utility model, through multiple structural innovations, successfully solves the problems of low assembly efficiency, difficulty in maintaining integrated structure, poor airflow, and performance impact of expanded functions in the prior art, and provides a hat fan that is easy to assemble, simple to maintain, has excellent wind efficiency, and is flexible in expansion. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A structural decomposition diagram; Figure 3 yes Figure 2 Another perspective on the structural breakdown diagram; Figure 4 This is one embodiment of the present invention; Figure 5 This is another embodiment of the present invention. Detailed Implementation

[0018] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are provided solely for the purpose of clearly illustrating the technical solution of the present invention, offering numerous specific details to provide a more thorough understanding. However, those skilled in the art will recognize that the present invention can be implemented without one or more of these details. In these examples, to avoid confusion with the present invention, some technical features known in the art have not been described.

[0019] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. Therefore, these embodiments are merely examples and should not be used to limit the scope of protection of the present invention.

[0020] Additionally, it should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0021] See Figures 1 to 5 The hat fan has a housing composed of a front cover 1 and a rear cover 2. The fan blades 3 are disposed inside the housing. On the inner sides of the front cover 1 and the rear cover 2, there are matching locking arms 11 and locking grooves 21. The end of the locking arm 11 is L-shaped. After the rear cover 1 and the front cover 2 come into contact, they rotate in opposite directions and the L-shaped end of the locking arm 11 rotates into the locking groove 21 to realize the splicing of the rear cover 1 and the front cover 2.

[0022] A mounting groove 22 for mounting a motor 4 is formed by recessing the central area of ​​the rear ventilation surface of the rear cover 2 towards the interior of the housing. The output end 41 of the motor 4 protrudes from the mounting groove 22 into the housing. A fan blade 3 is mounted on the output end 41 of the motor 4. The edge of the mounting groove 22 is provided with a mounting slide 23. A mounting frame 6 containing a control board 5 is provided with a claw 61 at its front end that matches the mounting slide 23. After the claw 61 slides past the mounting slide 23, the claw part 611 engages with the edge of the mounting slide 23 to fix the mounting frame 6. The bottom of both sides of the mounting frame 6 is also provided with buckle holes 62. A battery compartment cover 7 slides into the buckle hole 62 along the inner frame wall of both sides of the mounting frame 6 through the buckle arms 71 on both sides. After the buckle arms 711 are reset and engage with the edge 621 of the buckle hole 62, the battery compartment cover 7 is fixed.

[0023] During implementation, the motor 4 is first pushed into the mounting groove 22 on the back of the rear cover 2. The mounting groove 22 is made up of several brackets extending from the back of the rear cover 2. The brackets and the motor 4 are in a near-zero clearance fit, which can provide good friction for the motor and prevent the motor 4 from sliding. The bottom of the mounting groove 22 has a shaft hole 221 for the output shaft 41 of the motor 4 exposed. Then, the mounting hole in the center of the fan blade 3 is inserted into the output shaft 41 and installed. Next, the mounting frame 6, equipped with a front-end locking claw 61, is pushed into the mounting groove 22 on the back of the rear cover 2 via the mounting slide 23. The diameter of the claw portion 611 is smaller than the diameter of the bottom of the mounting slide 23 on the plane. This ensures that when the claw 61 pushes into the mounting slide 23, the claw portion 611 is pushed outwards. After the claw 61 passes the mounting slide 23, the claw portion 611 is not resisted by the mounting slide 23 and returns to its original position; that is, the claw portion 611 rests on the edge of the mounting slide 23. This achieves the locking of the mounting frame 6, completing the installation and fixation of the mounting frame 6 and the rear cover 2. Next, the control board 5 is placed inside the mounting frame 6, followed by the battery 8 stacked on top of the control board 5. Finally, the battery compartment cover 7 is inserted into the mounting frame 6 via the latch arm 71. After closing, the battery 8 is positioned inside the battery compartment cover 7.

[0024] In the above process, the front cover 1 can be assembled with the rear cover 2 after the mounting frame 6 is installed, or it can be assembled with the rear cover 2 after the battery compartment cover 7 is installed and fixed. The assembly of the front cover 1 and the rear cover 2 is roughly as follows: the front cover 1 and the rear cover 2 abut against each other at their edges. Usually, because the locking arm 11 is relatively protruding, the side of the locking groove 21 is the insertion area 24. This insertion area 24 allows the locking arm 11 to be completely submerged, so that the sides of the front cover 1 and the rear cover 2 can be closed. Then, they are rotated to rotate the end of the locking arm 11 from the insertion area 24 into the locking groove 21, thus completing the installation of the front cover 1 and the rear cover 2. In practice, if the locking arm 11 is made deeper than the groove of the locking groove 21, the locking arm 11 will be offset towards the center of the housing after it is rotated into the locking groove 21, causing the locking arm 11 to deform and increasing the friction between the locking arm 11 and the groove arm of the locking groove 21, thereby ensuring that the front cover 1 will not roll out of the rear cover 2. Of course, in another embodiment of this utility model, the problem of possible reversal and detachment caused by external forces such as the entire shell falling in or strong collisions has been solved by the anti-rotation structure.

[0025] Furthermore, as an improvement to this utility model, the front surface of the front cover 1 and the rear surface of the rear cover 2 are both honeycomb-shaped ventilation surfaces, and the sides of the front cover 1 and the rear cover 2 are cylindrical and form a duct for the motor 4 inside the housing after the front cover and the rear cover are assembled.

[0026] In this implementation scheme, the front and rear covers adopt a honeycomb ventilation surface design. Compared with the traditional radial grid, the honeycomb structure can guide the airflow more effectively, reduce wind resistance and turbulence, and make the air intake and exhaust more stable and concentrated, effectively improving the ventilation efficiency and air delivery effect of the fan.

[0027] Furthermore, as an improvement to this utility model, the side of the front cover 1 or the rear cover 2 is provided with an anti-rotation structure. The anti-rotation structure is respectively provided with a locking block 12 and an anti-rotation locking tongue 23 on the front cover 1 and the rear cover 2. One side of the locking block 12 is provided with a progressive slope 121, and after passing through the progressive slope 121 is an anti-rotation groove 122. When the front cover 1 and the rear cover 2 rotate in opposite directions, the anti-rotation locking tongue 23 slides over the progressive slope 121 and falls into the anti-rotation groove 122 to realize the anti-rotation separation of the front cover 1 and the rear cover 2.

[0028] During implementation, the anti-return latch 23 and the anti-rotation groove 122 are matched in shape. By utilizing the rotational locking method of the L-shaped locking arm and the locking groove, combined with the progressive slope of the anti-rotation structure and the design of the anti-rotation groove, the firmness and stability of the connection after the front cover 1 and the rear cover 2 are assembled are ensured, effectively preventing the shell from loosening due to accidental rotation. At the same time, the unlocking operation is clear, combining reliability and convenience.

[0029] Furthermore, as an improvement to this utility model, a connecting seat 13 with a through hole 131 is provided on one side of the housing. A mounting seat 9 for mounting the housing on other objects is installed by a rotating pin passing through the mounting seat 9 and the connecting seat 13 to realize the installation of the housing and the mounting seat 9. The side of the rotating pin body is provided with a positioning plane, and the rotating pin rotates synchronously with the mounting seat when it rotates through the mounting seat.

[0030] By incorporating a connector and mounting base with a rotating pin, the fan can flexibly adapt to various scenarios and objects (such as hat brims, desktops, etc.). The positioning plane design of the rotating pin ensures the adjustability of the installation angle and the stability after fixing. In addition, the mounting base provides a convenient integration interface for external functional modules such as solar panels, which not only expands functionality but also avoids the problem of reduced airflow caused by solar panels directly blocking the ventilation surface of the casing, fundamentally solving the defects in the prior art.

[0031] Furthermore, as an improvement to this utility model, the mounting base 9 is a clamp with a mounting opening 98. The mounting base 9, along with the housing, is clamped into the edge of an object that matches the mounting opening 98 through the mounting opening 98.

[0032] The mounting base 9 described in this embodiment is suitable for sunshade and waterproof caps with a cylindrical brim. The mounting opening 98 of the mounting base can be directly pressed into the brim. The mounting base 9 can slide along the brim to adjust the position of the fan, which is very convenient for the user.

[0033] Furthermore, as an improvement to this utility model, a solar panel mounting frame C is also provided on the mounting base 9, which is connected to the mounting base 9 by screws or a sliding structure.

[0034] Furthermore, as an improvement to this utility model, the mounting base 9 includes a mounting rotating support leg 91, a support body 92 above the support leg, and a base support 93 extending downward from the support body 92. The support body 92 is also provided with a limiting locking channel 94, and a locking tongue 95 extends towards the base support 93 by being resisted by a spring 96. Above the support body 92, a pressure plate 97 abuts against the other end of the spring 96.

[0035] The mounting base 9 described in this embodiment is suitable for safety helmets with the brim rolled up. The mounting base 9 is inserted into the brim of the helmet, at which time the base 93 rests against the bottom outer side of the rolled edge A. The pin 95 is inserted into the limiting locking channel 94 and rests against the inner side of the rolled edge A. Then, the spring 95 is pressed into the spring seat 951 of the pin 95. Due to the limiting locking channel 94, when the other end of the spring 95 is pressed by the pressure plate 97, the spring 95 always applies a downward force to the pin 95. Thus, when the mounting base 9 slides freely along the brim A, the spring 95 is constantly compressed or extended due to the change in the depth of the inner side of the rolled edge A, so that the locking tongue 95 is firmly pressed against the inner side of the rolled edge A. This forms a clamp with the base 93, thus fulfilling the installation requirement that the fan can slide along the edge of the safety helmet.

[0036] Furthermore, as an improvement to this utility model, the pressure plate 97 is a solar panel B mounting frame, which is connected to the mounting base 9 via a sliding insertion structure.

[0037] During implementation, the sliding insertion structure of the solar panel B mounting frame includes a horizontal insertion slot 971 set below the pressure plate 97. A corresponding insertion edge 98 needs to be set on the mounting base 9 for the horizontal insertion slot 971. The horizontal insertion slot 971 on the pressure plate 97 can be slid in from the side facing the insertion edge 98. At this time, attention should be paid to the spring 95. When the pressure plate 97 is slid in to the upper edge of the spring 95, the spring 95 can be pressed down with a tool or by hand while the pressure plate 97 continues to slide in. In this way, as long as part of the spring 95 is pressed under the pressure plate 97, the spring 95 can be released and the pressure plate 97 can continue to slide in to the end.

[0038] Furthermore, a protrusion 921 is provided at the end of the support body 92, and a groove (not shown) is provided at the corresponding position of the pressure plate 97 corresponding to the protrusion 921. When the protrusion 921 slides into the groove (not shown), the pressure plate 97 can be prevented from moving back after being installed on the mounting base 9.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A hat fan, comprising a housing composed of a front cover and a rear cover joined together, with fan blades disposed inside the housing, characterized in that: The front cover and the rear cover are provided with matching locking arms and locking grooves on their inner sides. The end of the locking arm is L-shaped. After the rear cover and the front cover come into contact, they rotate in opposite directions and the L-shaped end of the locking arm rotates into the locking groove to achieve the splicing of the rear cover and the front cover. A mounting groove for mounting a motor is formed in the central area of ​​the rear ventilation surface of the rear cover, which is recessed towards the inside of the housing. The edge of the mounting groove is provided with a mounting slide. An installation frame containing a control panel has a claw at its front end that matches the installation slide. After the claw slides through the installation slide, the claw engages with the edge of the installation slide to fix the installation frame. The bottom of both sides of the installation frame also has buckle holes. A battery compartment cover slides into the buckle hole along the inner frame wall on both sides of the installation frame through buckle arms on both sides. The battery compartment cover is then fixed by the buckle arm ends resting on the edge of the buckle hole.

2. The hat fan according to claim 1, characterized in that: The front surface of the front cover and the rear surface of the rear cover are both honeycomb-shaped ventilation surfaces. The sides of the front cover and the rear cover are cylindrical and, when assembled, form the duct of the motor inside the housing.

3. The hat fan according to claim 1, characterized in that: The front or rear cover is provided with an anti-rotation structure on its side. The anti-rotation structure is respectively provided with a locking block and an anti-rotation latch on the front and rear covers. One side of the locking block is provided with a progressive slope, and after passing through the progressive slope is an anti-rotation groove. When the front and rear covers rotate in opposite directions, the anti-rotation latch slides over the progressive slope and falls into the anti-rotation groove to achieve anti-rotation separation of the front and rear covers.

4. The hat fan according to claim 1, characterized in that: A connecting seat with a through hole is also provided on one side of the housing. A mounting seat for mounting the housing on other objects is provided. A rotating pin passes through the mounting seat and the connecting seat to realize the installation of the housing and the mounting seat. The side of the rotating pin is provided with a positioning plane. When the rotating pin passes through the mounting seat, it rotates synchronously with the mounting seat.

5. The hat fan according to claim 4, characterized in that: The mounting base is a clamp with a mounting opening. The mounting base, along with the housing, is clamped into the edge of an object that matches the mounting opening through the mounting opening.

6. The hat fan according to claim 5, characterized in that: A solar panel mounting frame is also provided on the mounting base, which is connected to the mounting base by screws or a sliding plug structure.

7. The hat fan according to claim 6, characterized in that: The mounting base includes a mounting swivel support leg, a support body above the support leg, and a base extending downward from the support body. The support body is also provided with a limiting lock track, a locking tongue extending towards the base by a spring, and a pressure plate abutting the other end of the spring above the support body.

8. The hat fan according to claim 7, characterized in that: The pressure plate is a solar panel mounting frame, which is connected to the mounting base via a sliding insertion structure.

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