Mini fan shell and mini fan

Abstract

The utility model provides a mini fan shell and mini fan, the fan shell comprises a cylindrical inner shell and a transparent cylindrical outer shell, one end of the outer shell is open, and one end of the inner shell is inserted into the outer shell. A charging port is arranged at the lower end of the inner shell, a connecting shaft hole and a thickened part are arranged at the upper end of the inner shell and abut against the open end of the outer shell, and a mounting notch is arranged on the lateral side of the inner shell. The inner shell is formed by connecting a first shell and a second shell through screws, and the outer surface is provided with a pattern layer decoration structure. The circuit board, the battery, the switch, the motor and the like are fixed in the inner shell, are reasonable in layout and do not interfere with one another. The button operates the switch through the pressing column, the connecting columns on the two sides and the barbs are connected with the mounting notches, the inner shell is further provided with a containing groove, and the limiting columns prevent the switch from being disengaged. And the button positioning groove is matched with the positioning part on the side wall of the mounting notch to prevent rotation. And the inner shell is provided with a rope threading hole. The design improves the decoration performance and is convenient to carry and use.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, and in particular to a mini fan housing and a mini fan. Background Art

[0002] With the continuous development of science and technology and the improvement of people's living standards, portable devices are becoming more and more popular. In daily life, people often need to get a cool breeze in various occasions, and mini fans have emerged as the times require.

[0003] While existing fans on the market have met people's needs for ventilation and cooling to a certain extent, they still have some shortcomings. For one thing, existing mini fans lack decorative features. Most mini fans have a relatively simple design, lacking individuality and aesthetics, failing to meet consumers' demand for stylish and refined products. Furthermore, there are also issues with the internal layout of mini fans. Lack of proper planning when installing key components such as motors, switches, batteries, and circuit boards results in a less-than-compact product and low internal space utilization, impacting the mini fan's portability and user experience.

[0004] Therefore, how to improve the appearance and decorative performance of mini fans and to reasonably arrange their internal structures has become an urgent problem to be solved in the current mini fan field. Summary of the Invention

[0005] In view of the problems pointed out in the background technology, the present invention proposes a mini fan housing and a mini fan to solve the above technical problems.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] A mini fan housing includes a cylindrical inner housing, which is hollow inside. The mini fan housing is characterized in that it also includes a cylindrical outer housing, which is hollow inside and has an open end. One end of the inner housing is inserted into the interior of the outer housing, and the outer housing is transparent.

[0008] The utility model is further configured such that a charging port communicating with the interior of the inner shell is provided on the lower end surface of the inner shell;

[0009] A connecting shaft hole communicating with the interior of the inner shell is provided on the upper end of the inner shell;

[0010] The side surface of the inner shell is provided with a mounting notch;

[0011] The outer shell is provided with slotted holes corresponding to the charging port and the mounting notch respectively.

[0012] The utility model is further configured such that the upper end of the inner shell is thickened and abuts against the open end of the outer shell;

[0013] A snap-fit groove is provided on the inner side wall of the open end of the outer shell, and a snap-fit block corresponding to the snap-fit groove is provided on the outer side wall of the inner shell. The snap-fit block cooperates with the snap-fit groove to fix the outer shell and the inner shell in connection.

[0014] The present invention is further configured such that the inner shell comprises a first shell and a second shell which are separately provided, and the first shell and the second shell are fixedly connected by screws.

[0015] The present invention is further configured such that a decorative structure is provided on the outer surface of the inner shell in an area corresponding to the outer shell.

[0016] The utility model is further configured such that the decorative structure is a pattern layer.

[0017] A mini fan, comprising the above-mentioned fan housing;

[0018] The inner shell is fixed with a circuit board, a battery, a switch, and a motor. The motor is arranged at the upper end of the inner shell, the circuit board is arranged at the lower end of the inner shell, and the battery and the switch are arranged in the area between the motor and the circuit board. The circuit board is connected to the battery, and the motor is connected to the battery through the switch.

[0019] The circuit board is provided with a charging connector, which extends into the charging port and the slotted hole;

[0020] The switch is arranged corresponding to the mounting notch, and a button for operating the switch is connected in the mounting notch;

[0021] The driving shaft of the electric motor is arranged corresponding to the connecting shaft hole. The other end of the inner shell is provided with a fan impeller fixedly connected to the driving shaft, and the fan impeller is connected with fan blades.

[0022] The utility model is further configured such that a pressing column is provided at the center of the button, and a through hole for the pressing column to pass through is provided at the bottom of the mounting notch;

[0023] Connecting posts are provided on both sides of the button, and the ends of the connecting posts are provided with barbs. The bottom of the mounting notch is provided with a connecting hole for inserting the connecting posts, and the barbs can prevent the connecting posts from falling out of the connecting holes.

[0024] The inner shell has two opposite side walls respectively provided with a receiving groove and a limiting column corresponding to the mounting notch. The receiving groove is located between the limiting column and the mounting notch. The switch is installed in the receiving groove. The limiting column is used to prevent the switch from leaving the receiving groove.

[0025] The utility model is further configured such that a positioning groove is provided on the button, a positioning portion connected to the positioning groove is provided on the side wall of the installation groove, and the positioning portion cooperates with the positioning groove to prevent the button from rotating.

[0026] The utility model is further configured such that the inner shell is provided with a rope threading hole for the hanging rope to pass through.

[0027] By adopting the above technical solution, the beneficial effects of the utility model are:

[0028] A transparent outer shell is placed on the outside of the inner shell. The outer shell serves both as a decoration and as a protection for the decorative structure on the surface of the inner shell, thereby improving the decorative performance of the product.

[0029] The fan blades and charging structure are arranged at both ends of the cylindrical shell in the length direction, and the button is set in the middle. This structural layout is reasonable and the various functional modules do not interfere with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0032] Figure 2 This is a schematic diagram of the decomposition of the utility model Figure 1 .

[0033] Figure 3 It is an enlarged schematic diagram of the installation notch of the utility model.

[0034] Figure 4 This is a cross-sectional view of the utility model Figure 1 .

[0035] Figure 5 This is a cross-sectional view of the utility model Figure 2 .

[0036] Figure 6 This is a schematic diagram of the structure of the utility model Figure 2 .

[0037] Figure 7 This is a schematic diagram of the decomposition of the utility model Figure 2 .

[0038] Figure 8 This is a structural diagram of the button of the utility model.

[0039] Figure 9 It is an enlarged schematic diagram of the receiving tank of the present invention. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Reference as follows Figures 1-9 The utility model is described as follows:

[0042] Example: A mini fan housing includes a cylindrical inner housing 1, which is hollow and comprises a first housing 11 and a second housing 12, each of which is separately connected by screws. This connection ensures a secure connection while facilitating disassembly, repair, or replacement of internal components when necessary. A decorative structure is provided on the outer surface of the inner housing 1, in an area corresponding to the outer housing 2. The decorative structure is a patterned layer. The patterned layer can include a variety of exquisite patterns, such as cartoon characters, floral designs, and geometric shapes, adding personalization and aesthetics to the mini fan.

[0043] It also includes a cylindrical outer shell 2, which is hollow inside and open at one end. The lower end of the inner shell 1 is inserted into the interior of the outer shell 2. This insertion method makes the combination of the two more compact and stable. The inner side wall of the open end of the outer shell 2 is provided with a snap-in groove 7, and the outer side wall of the inner shell 1 is provided with a snap-in block 8 that snaps into place with the snap-in groove 7. The combination of the snap-in block 8 and the snap-in groove 7 ensures that the outer shell 2 and the inner shell 1 are firmly fixed together, preventing them from loosening or falling off during use. The upper end of the inner shell 1 is thickened and abuts against the open end of the outer shell 2. This design not only increases the overall stability of the product, but also makes the appearance more streamlined and beautiful.

[0044] The outer shell 2 is transparent. This feature offers multiple advantages. First, the transparent outer shell clearly displays the decorative structure on the inner shell 1, further enhancing the product's decorative qualities. Consumers can appreciate the exquisite patterns on the inner shell from all angles, satisfying their pursuit of stylish and refined products. Second, the outer shell protects the decorative structure on the inner shell surface. During daily use, the mini fan may be subject to external forces such as collisions and scratches. The transparent outer shell effectively blocks these external forces, protecting the pattern layer on the inner shell from damage and extending the product's lifespan. Furthermore, the transparent outer shell allows consumers to intuitively view a portion of the internal structure, adding to the product's technological and engaging feel.

[0045] In summary, this mini fan housing not only improves the decorative performance of the product by providing a transparent outer housing on the outside of the inner housing, but also provides effective protection for the inner housing. It is an innovative and practical design.

[0046] The lower end surface of the inner housing 1 is provided with a charging port 3 that communicates with the interior (providing convenient access for charging the battery 14). The upper end of the inner housing 1 is provided with a connecting shaft hole 4 that communicates with the interior (for mounting the drive shaft 19 of the fan impeller 18). The side surface of the inner housing 1 is provided with a mounting notch 5 (for mounting the button 17 of the operating switch 15). To accommodate the charging port 3 and mounting notch 5 on the inner housing 1, corresponding slots 6 are provided on the outer housing 2.

[0047] A mini fan comprises the above-mentioned fan casing.

[0048] A circuit board 13, a battery 14, a switch 15, and a motor 16 are fixedly mounted inside the inner housing 1. The motor 16 is located at the upper end of the inner housing 1, and the circuit board 13 is located at the lower end of the inner housing 1. The battery 14 and the switch 15 are located in the area between the motor 16 and the circuit board 13. The circuit board 13 is connected to the battery 14, and the motor 16 is connected to the battery 14 via the switch 15. The battery 14 provides operating power to the motor 16, and the switch 15 controls the power on and off of the motor 16.

[0049] The interior of the inner housing 1 features a strategically arranged layout of several key components. A circuit board 13, fixed to the lower end of the inner housing 1, controls the entire fan circuit. A battery 14 and a switch 15 are located between the motor 16 and the circuit board 13. The circuit board 13 connects to the battery 14, providing control over its charging and discharging. The motor 16 is connected to the battery 14 via the switch 15, providing power to the motor 16. The switch 15 allows for convenient on / off control of the motor 16. A charging connector 131 is provided on the circuit board 13, extending into the charging port 3 and the slotted hole 6. This allows an external power source to charge the battery 14 via the charging connector 131.

[0050] A charging connector 131 is provided on the circuit board 13 , and the charging connector 131 extends into the charging port 3 and the slotted hole 6 . The battery 14 is charged via the charging connector 131 .

[0051] The switch 15 is provided corresponding to the mounting notch 5 , and a button 17 for operating the switch 15 is connected in the mounting notch 5 .

[0052] The driving shaft 19 of the motor 16 is arranged corresponding to the connecting shaft hole 4. The other end of the inner housing 1 is provided with a fan impeller 18 fixedly connected to the driving shaft 19. The fan impeller 18 is connected to the fan blades 20.

[0053] A switch 15 is positioned corresponding to the mounting slot 5. A button 17 for operating the switch 15 is connected within the mounting slot 5, allowing the user to easily control the fan's on and off status. A motor 16 is mounted at the upper end of the inner housing 1, with its drive shaft 19 corresponding to the connecting shaft hole 4. At the other end of the inner housing 1 is a fan impeller 18 fixedly connected to the drive shaft 19. Blades 20 are attached to the impeller 18. When the motor 16 is operating, the drive shaft 19 rotates the impeller 18, causing the blades 20 to generate airflow, providing a cool experience for the user.

[0054] This mini fan boasts a highly optimized structural layout. The fan blades 20 and charging mechanism are located at either end of the cylindrical housing, with the button 17 positioned in the center. This layout prevents interference between the various functional modules, ensuring proper fan operation while facilitating user operation. Furthermore, this layout enhances the fan's aesthetic appeal, meeting modern consumers' demand for portability and style.

[0055] A pressing post 21 is located at the center of button 17, and a through-hole 22 is provided at the bottom of mounting slot 5 for pressing post 21 to pass through. Pressing post 21 passes through through-hole 22 to press switch 15. When the user presses button 17, pressing post 21 passes through through-hole 22 and accurately presses switch 15, turning the fan on and off. This design ensures accurate and sensitive operation, allowing users to easily control the fan's operating status.

[0056] Connecting posts 23 are located on either side of the button 17, each with a barb 24 at its end. The bottom of the mounting slot 5 is provided with a connection hole 25 for the connecting posts 23 to be inserted into. The barb 24 prevents the connecting posts 23 from falling out of the connection hole 25. Once the connecting posts 23 are inserted into the connection hole 25, the barb 24 effectively prevents the connecting posts 23 from falling out, ensuring that the button 17 is securely mounted in the mounting slot 5. This connection method ensures the stability of the button 17 while facilitating installation and removal, making it easy to repair or replace when necessary.

[0057] On opposite sides of the inner housing 1 are respectively provided a receiving slot 26 and a limiting post 27 corresponding to the mounting notch 5. The receiving slot 26 is located between the limiting post 27 and the mounting notch 5. The switch 15 is mounted in the receiving slot 26, and the limiting post 27 is used to prevent the switch 15 from being removed from the receiving slot 26. The limiting post 27 plays a crucial role by preventing the switch 15 from being removed from the receiving slot 26, ensuring that the switch 15 operates in the correct position. This design not only ensures the stability of the switch 15 but also makes the internal structure more compact and rational.

[0058] Button 17 is provided with a positioning slot 28. A positioning portion 29 is provided on the sidewall of mounting slot 5, connected to positioning slot 28. Positioning portion 29 cooperates with positioning slot 28 to prevent button 17 from rotating. This prevents rotation, ensuring that button 17 always maintains the correct position and orientation during use. This positioning design improves button operation accuracy and reliability, allowing users to more accurately control fan operation.

[0059] The inner housing 1 is provided with a string hole 30 for threading a lanyard. This hole 30 provides convenience for users, allowing them to hang the mini fan around their neck, wrist, or elsewhere for easy portability and use. Whether outdoors, traveling, or working daily, users can enjoy a cool breeze anytime, anywhere.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mini fan housing, comprising a cylindrical inner housing (1), wherein the inner housing (1) is hollow, and is characterized in that: It also includes a cylindrical outer shell (2), the outer shell (2) is hollow inside and has an open end, one end of the inner shell (1) is plugged into the interior of the outer shell (2), and the outer shell (2) is transparent.

2. The mini fan housing according to claim 1, characterized in that: A charging port (3) communicating with the interior of the inner shell (1) is provided on the lower end surface of the inner shell (1); A connecting shaft hole (4) communicating with the interior of the inner shell (1) is provided on the upper end thereof; A mounting notch (5) is provided on the side surface of the inner shell (1); The outer shell (2) is provided with slotted holes (6) corresponding to the charging port (3) and the mounting notch (5) respectively.

3. The mini fan housing according to claim 2, characterized in that: The upper end of the inner shell (1) is thickened and abuts against the open end of the outer shell (2); A snap-fit groove (7) is provided on the inner side wall of the open end of the outer shell (2), and a snap-fit block (8) corresponding to the snap-fit groove (7) is provided on the outer side wall of the inner shell (1). The snap-fit block (8) cooperates with the snap-fit groove (7) to securely connect the outer shell (2) and the inner shell (1).

4. The mini fan housing according to claim 3, characterized in that: The inner shell (1) comprises a first shell (11) and a second shell (12) which are separately arranged, and the first shell (11) and the second shell (12) are fixedly connected by screws.

5. The mini fan housing according to claim 4, characterized in that: A decorative structure is provided on the outer surface of the inner shell (1) in an area corresponding to the outer shell (2).

6. The mini fan housing according to claim 5, characterized in that: The decorative structure is a pattern layer.

7. A mini fan, characterized by: comprising a fan housing as described in any one of claims 1 to 6; A circuit board (13), a battery (14), a switch (15), and a motor (16) are fixedly provided inside the inner housing (1); the motor (16) is arranged at the upper end of the inner housing (1), the circuit board (13) is arranged at the lower end of the inner housing (1), and the battery (14) and the switch (15) are arranged in an area between the motor (16) and the circuit board (13); the circuit board (13) is connected to the battery (14), and the motor (16) is connected to the battery (14) via the switch (15); The circuit board (13) is provided with a charging connector, and the charging connector extends into the charging port (3) and the slotted hole (6); The switch (15) is arranged corresponding to the mounting notch (5), and a button (17) for operating the switch (15) is connected to the mounting notch (5); The driving shaft (19) of the motor (16) is arranged corresponding to the connecting shaft hole (4), and the other end of the inner housing (1) is provided with a fan impeller (18) fixedly connected to the driving shaft (19), and the fan impeller (18) is connected to a fan blade (20).

8. The mini fan according to claim 7, characterized in that: A pressing column (21) is provided at the center of the button (17), and a through hole (22) for the pressing column (21) to pass through is provided at the bottom of the mounting slot (5); Connecting posts (23) are respectively provided on both sides of the button (17), and the ends of the connecting posts (23) are provided with barbs (24). The bottom of the mounting notch (5) is provided with a connecting hole (25) for inserting the connecting posts (23), and the barbs (24) can prevent the connecting posts (23) from falling out of the connecting hole (25). The inner shell (1) is provided with a receiving groove (26) and a limiting column (27) corresponding to the mounting notch (5) on two opposite side walls thereof. The receiving groove (26) is located between the limiting column (27) and the mounting notch (5). The switch (15) is installed in the receiving groove (26). The limiting column (27) is used to prevent the switch (15) from being separated from the receiving groove (26).

9. The mini fan according to claim 8, characterized in that: The button (17) is provided with a positioning groove (28), and the side wall of the mounting notch (5) is provided with a positioning portion (29) connected to the positioning groove (28). The positioning portion (29) cooperates with the positioning groove (28) to prevent the button (17) from rotating.

10. The mini fan according to claim 7, characterized in that: The inner shell (1) is provided with a rope threading hole (30) for a hanging rope to pass through.

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