Structurally optimized portable fan

Abstract

The application discloses a portable fan with optimized structure, which comprises a fan shell, an air inlet and an air outlet arranged on the fan shell, a fan assembly arranged in the fan shell, a battery compartment, and a magnetic connection part and a buckle connection part arranged on the fan shell and the battery compartment respectively to magnetically connect the fan shell and the battery compartment and buckle connect the fan shell and the battery compartment. The buckle connection part is provided with a buckle release space for facilitating disassembly. The magnetic connection part is used for limiting the movement of the buckle connection part to the buckle release space within a preset stress range. The detachable connection of the battery compartment and the fan shell provides great portability for users, and the battery compartment can be separated from the fan shell when needed.

Description

Technical Field

[0001] This application relates to the field of fans, and more particularly to a portable fan with optimized structure. Background Technology

[0002] In the hot summer, fans have become an essential item for people to relieve the heat. With people's demand for convenient use, lighter and more portable fans are becoming increasingly popular.

[0003] Portable fans are designed to meet users' needs in various scenarios, such as outdoor activities, travel, and office work. For added convenience, some portable fans feature a detachable structure, allowing the battery and fan to be separated. As the core components of a portable fan, the detachability of the battery and fan allows users to replace either component as needed, extending usage time and adapting to different wind speed requirements. However, in practical applications, this detachable design often results in insufficient connection stability due to the limitation of a single connection method. Utility Model Content

[0004] The purpose of this application is to provide a portable fan that can improve the stability of the connection between the battery and the fan.

[0005] This application provides a structurally optimized portable fan, comprising:

[0006] A fan housing, wherein an air inlet and an air outlet are provided on the fan housing;

[0007] A fan assembly disposed within the fan housing;

[0008] A battery compartment, which is detachably connected to the fan housing;

[0009] A magnetic connection part is provided on the fan housing and the battery compartment respectively, so that the fan housing and the battery compartment are magnetically connected;

[0010] The snap-fit ​​connection is provided on the fan housing and the battery compartment respectively, so that the fan housing and the battery compartment are snapped together. The snap-fit ​​connection is provided with a release space for easy disassembly.

[0011] The magnetic connection is used to restrict the movement of the snap-fit ​​connection towards the release space within a preset force range.

[0012] Optionally, the snap-fit ​​connection includes: a bayonet assembly and a claw assembly, wherein the bayonet assembly is formed on the fan housing and the claw assembly is disposed on the battery compartment;

[0013] The magnetic connection part includes: a first magnetic component and a second magnetic component, wherein the first magnetic component is disposed inside the fan housing and the second magnetic component is disposed inside the battery compartment;

[0014] When the claw assembly is aligned with the bayonet assembly, the first magnetic suction assembly and the second magnetic suction assembly are misaligned so that the claw assembly and the bayonet assembly engage during the magnetic alignment process.

[0015] Optionally, the snap-fit ​​connection includes: a bayonet assembly and a claw assembly, wherein the bayonet assembly is formed on the battery compartment and the claw assembly is disposed on the fan housing;

[0016] The magnetic connection part includes: a first magnetic component and a second magnetic component, wherein the first magnetic component is disposed inside the fan housing and the second magnetic component is disposed inside the battery compartment;

[0017] When the claw assembly is aligned with the bayonet assembly, the first magnetic suction assembly and the second magnetic suction assembly are misaligned so that the claw assembly and the bayonet assembly engage during the magnetic alignment process.

[0018] Optionally, the claw assembly includes: a plug-in end and a connecting end, the connecting end being connected to the fan housing or battery compartment, the shape of the plug-in end being adapted to the shape of the jaw assembly, and a snap-fit ​​notch being provided between the plug-in end and the connecting end, the radial cross-sectional area of ​​the snap-fit ​​notch being smaller than the maximum radial cross-sectional area of ​​the plug-in end.

[0019] Optionally, when the first magnetic suction component and the second magnetic suction component are aligned with each other, the snap-fit ​​notch engages with the bayonet component, and the insertion end abuts against the inner surface of the bayonet component.

[0020] Optionally, the opening direction of the snap-fit ​​notch is opposite to the movement direction of the first magnetic component during the alignment process with the second magnetic component; or,

[0021] The opening direction of the snap-fit ​​notch is the same as the movement direction of the second magnetic component during the alignment process with the first magnetic component.

[0022] Optionally, the portable fan further includes: a first connection terminal and a second connection terminal, the first connection terminal being disposed on the fan housing and the second connection terminal being disposed on the battery compartment, the first connection terminal and the second connection terminal being electrically connected and / or signal connected.

[0023] Optionally, when the claw assembly is aligned with the bayonet assembly, the first connecting terminal and the second connecting terminal are misaligned and the first connecting terminal and the second connecting terminal are disconnected from each other.

[0024] Optionally, the bayonet assembly includes a first bayonet and a second bayonet, with the first connecting terminal disposed between the first bayonet and the second bayonet.

[0025] Optionally, the jaw assembly includes a first jaw and a second jaw, with the second connecting terminal disposed between the first jaw and the second jaw.

[0026] The beneficial effects of this application embodiment are as follows: The battery compartment and fan housing are detachably connected, providing users with great portability. Users can separate the battery compartment from the fan housing when needed. The replaceable battery compartment design can effectively extend the battery life of the portable fan, meeting the needs of users in outdoor or long-term use scenarios. The use of a dual connection structure of magnetic attraction and snap-fit ​​greatly enhances the connection strength between the battery compartment and the fan housing. The magnetic attraction provides initial positioning and adsorption for the snap-fit ​​connection, making it easy for users to quickly and accurately install the battery compartment. The snap-fit ​​connection further reinforces the magnetic attraction, ensuring that the fan will not loosen due to shaking or collision during use, thus ensuring the stable operation of the portable fan. The snap-fit ​​connection is provided with a preset release space, allowing users to easily and quickly release the snap-fit ​​when disassembly is required. At the same time, the magnetic attraction part compensates for the lack of stability of the snap-fit ​​connection in the release space within the preset force range, effectively preventing the snap-fit ​​connection part from moving into the release space and causing accidental release. This design not only ensures the stability of the connection but also facilitates user disassembly, improving the user experience. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0028] Figure 1 This is a first-view structural diagram of a portable fan according to a specific embodiment of this application;

[0029] Figure 2 This is a second-view structural diagram of a portable fan according to a specific embodiment of this application;

[0030] Figure 3 This is a cross-sectional view of a portable fan along section AA, according to a specific embodiment of this application.

[0031] Figure 4 This is an enlarged schematic diagram of the portable fan region A according to a specific embodiment of this application;

[0032] Figure 5This is a schematic diagram of the battery compartment structure according to a specific embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the structure of a portable fan part according to a specific embodiment of this application.

[0034] Figure descriptions: 1. Fan housing; 11. Air inlet; 12. Air outlet; 13. First connecting terminal; 2. Fan assembly; 3. Battery compartment; 31. Second connecting terminal; 4. Magnetic connection part; 41. First magnetic assembly; 42. Second magnetic assembly; 5. Snap-fit ​​connection part; 51. Claw assembly; 511. Insertion end; 512. Connection end; 513. Snap-fit ​​notch; 514. First claw; 515. Second claw; 52. Bayonet assembly; 521. First bayonet; 522. Second bayonet. Detailed Implementation

[0035] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0037] like Figure 1 , 2 As shown in Figures 3 and 4, a structurally optimized portable fan includes: a fan housing 1, on which an air inlet 11 and an air outlet 12 are provided; a fan assembly 2, which is disposed inside the fan housing 1; a battery compartment 3, which is detachably connected to the fan housing 1; a magnetic connection part 4, which is disposed on both the fan housing 1 and the battery compartment 3 to magnetically connect the fan housing 1 and the battery compartment 3; a snap-fit ​​connection part 5, which is disposed on both the fan housing 1 and the battery compartment 3 to snap-fit ​​the fan housing 1 and the battery compartment 3, wherein the snap-fit ​​connection part 5 is provided with a release space S for easy disassembly; the magnetic connection part 4 is used to restrict the movement of the snap-fit ​​connection part 5 toward the release space S within a preset force range.

[0038] The fan housing 1 is made of plastic material. However, the material used to make the fan housing 1 is not limited to this. Depending on the specific application, in some embodiments, the fan housing 1 can be made by mixing plastic and metal materials. For example, the fan housing 1 can be divided into an inner housing and an outer housing, wherein the outer housing is made of metal and the inner housing is made of plastic. The use of a mixture of metal and plastic materials can improve the physical properties of the fan housing 1, making it more stable and durable.

[0039] Fan assembly 2 includes a fan motor and fan blades. The motor assembly can be (but is not limited to): a single-phase motor, a two-phase motor, or a three-phase motor. The structure of fan assembly 2 can be an external rotor or an internal rotor.

[0040] In this embodiment, the battery compartment 3 serves as a housing for a portable battery. The battery compartment 3 and the fan assembly 2 are electrically connected via connecting terminals. However, the electrical connection between the battery compartment 3 and the fan assembly 2 is not limited to this; in some embodiments, the battery compartment 3 and the fan assembly 2 are connected via external wires. In some embodiments, the battery compartment 3 and the fan assembly 2 have two connection methods: connecting terminals and external wires.

[0041] The magnetic connection part 4 consists of a pair of opposite magnets, which are respectively disposed on the fan housing 1 and the battery compartment 3, and are connected by mutual attraction between the opposite magnets. The number of opposite magnets in the magnetic connection part 4 is not limited to one pair. Depending on the specific application scenario, in some embodiments, the number of opposite magnets in the magnetic connection part 4 is two, three, four or more pairs.

[0042] The snap-fit ​​connection part 5 includes a claw and a slot, which are respectively disposed on the fan housing 1 and the battery compartment 3. The connection is achieved by the interlocking of the claw and the slot. The number of claws and slots in the snap-fit ​​connection part 5 is not limited to one pair. Depending on the specific application scenario, in some embodiments, the number of claws and slots in the snap-fit ​​connection part 5 is two, three, four or more pairs.

[0043] In this embodiment, a release space S is provided on the latch. When the latch engages with the latch, the latch can be released by moving the latch towards the release space S. The direction of movement towards the release space S is the release direction, and the magnetic connection part 4 restricts the movement of the latch towards the release space S. The release space S improves the ease with which the user can separate the fan housing 1 and the battery compartment 3. Simply moving the latch into the release space S will separate the latch and the latch.

[0044] In this embodiment, the tripping direction is the direction opposite to that of the chuck.

[0045] The force-bearing range extends from 0 to the magnetic force of the magnetic connector 4. Magnetic force refers to the minimum force required to cause the magnetic connector 4 to misalign. Within this range, the magnetic connector 4 will not misalign or separate, and therefore, the latching connector 5 will not move towards the release space S. This effectively restricts the movement of the latching connector 5 towards the release space S.

[0046] The battery compartment 3 and fan housing 1 are detachably connected, providing users with excellent portability. Users can easily separate the battery compartment 3 from the fan housing 1 when needed. The replaceable battery compartment 3 effectively extends the portable fan's battery life, meeting the needs of users in outdoor or extended use scenarios. The use of a dual magnetic and snap-fit ​​connection structure greatly enhances the connection strength between the battery compartment 3 and fan housing 1. The magnetic connection provides initial positioning and attraction for the snap-fit ​​connection, facilitating quick and accurate installation of the battery compartment 3. The snap-fit ​​connection further reinforces the magnetic connection, ensuring the fan will not loosen due to shaking or impact during use, guaranteeing stable operation of the portable fan. The snap-fit ​​connection has a preset release direction, allowing users to easily and quickly release it when disassembly is required. Simultaneously, the magnetic connection part 4 compensates for the insufficient stability of the snap-fit ​​connection in the release space S within a preset force range, effectively preventing the snap-fit ​​connection part 5 from moving into the release space S and causing accidental release. This design ensures connection stability while facilitating user disassembly, improving the user experience.

[0047] In some embodiments, the snap-fit ​​connection part 5 includes a snap-fit ​​assembly 52 and a claw assembly 51, wherein the snap-fit ​​assembly 52 is formed on the fan housing 1 and the claw assembly 51 is disposed on the battery compartment 3.

[0048] In some embodiments, the magnetic connection part 4 includes: a first magnetic component 41 and a second magnetic component 42, wherein the first magnetic component 41 is disposed inside the fan housing 1 and the second magnetic component 42 is disposed inside the battery compartment 3.

[0049] In some embodiments, when the claw assembly 51 is aligned with the jaw assembly 52, the first magnetic attraction assembly 41 and the second magnetic attraction assembly 42 are misaligned so that the claw assembly 51 engages with the jaw assembly 52 during the magnetic alignment process.

[0050] When the claw assembly 51 aligns with the bayonet assembly 52, the first magnetic attraction assembly 41 and the second magnetic attraction assembly 42 are misaligned. The magnetic force between the first magnetic attraction assembly 41 and the second magnetic attraction assembly 42 aligns them. The process of aligning the first magnetic attraction assembly 41 and the second magnetic attraction assembly 42 from misalignment is called the alignment process. During the alignment process, the magnetic force guides the claw assembly 51 to engage with the bayonet assembly 52, ensuring precise docking and secure connection between the battery compartment 3 and the fan housing 1, effectively preventing loosening and improving connection stability. During assembly, the user only needs to align the claw assembly 51 with the bayonet assembly 52 and insert it. The magnetic force will then guide the claw assembly 51 to automatically engage with the bayonet assembly 52, achieving a quick and precise connection without additional operation, making it convenient and practical.

[0051] In some embodiments, the snap-fit ​​connection part 5 includes: a snap-fit ​​assembly 52 and a claw assembly 51, wherein the snap-fit ​​assembly 52 is formed on the battery compartment 3 and the claw assembly 51 is disposed on the fan housing 1;

[0052] The magnetic connection part 4 includes: a first magnetic component 41 and a second magnetic component 42. The first magnetic component 41 is disposed inside the fan housing 1, and the second magnetic component 42 is disposed inside the battery compartment 3.

[0053] When the claw assembly 51 is aligned with the jaw assembly 52, the first magnetic attraction assembly 41 and the second magnetic attraction assembly 42 are misaligned so that the claw assembly 51 and the jaw assembly 52 engage during the magnetic alignment process.

[0054] When the claw assembly 51 aligns with the bayonet assembly 52, the first magnetic attraction assembly 41 and the second magnetic attraction assembly 42 are misaligned. The magnetic force between the first magnetic attraction assembly 41 and the second magnetic attraction assembly 42 aligns them. The process of aligning the first magnetic attraction assembly 41 and the second magnetic attraction assembly 42 from misalignment is called the alignment process. During the alignment process, the magnetic force guides the claw assembly 51 to engage with the bayonet assembly 52, ensuring precise docking and secure connection between the battery compartment 3 and the fan housing 1, effectively preventing loosening and improving connection stability. During assembly, the user only needs to align the claw assembly 51 with the bayonet assembly 52 and insert it. The magnetic force will then guide the claw assembly 51 to automatically engage with the bayonet assembly 52, achieving a quick and precise connection without additional operation, making it convenient and practical.

[0055] like Figure 5As shown, in some embodiments, the claw assembly 51 includes: a plug-in end 511 and a connecting end 512. The connecting end 512 is connected to the fan housing 1 or the battery compartment 3. The shape of the plug-in end 511 is adapted to the shape of the jaw assembly 52. ​​A locking notch 513 is provided between the plug-in end 511 and the connecting end 512. The radial cross-sectional area of ​​the locking notch 513 is smaller than the maximum radial cross-sectional area of ​​the plug-in end 511.

[0056] When the claw assembly 51 is mounted on the fan housing 1, the connecting end 512 is connected to the fan housing 1. When the claw assembly 51 is mounted on the battery compartment 3, the connecting end 512 is connected to the battery compartment 3.

[0057] In this embodiment, the shape of the bayonet assembly 52 is racetrack-shaped. However, the shape of the bayonet assembly 52 is not limited to this; the shape of the bayonet assembly 52 can be set according to the actual needs of use, and is not limited here.

[0058] The shape of the plug end 511 is racetrack-shaped. However, the shape of the plug end 511 is not limited to this. The shape of the bayonet component 52 can be set according to the actual needs of use, and the shape of the plug end 511 can be set accordingly according to the shape of the bayonet component 52. It is not limited here.

[0059] The snap-fit ​​notch 513 between the plug-in end 511 and the connecting end 512 has a radial cross-sectional area smaller than the maximum radial cross-sectional area of ​​the plug-in end 511. This design allows the snap-fit ​​notch 513 to form a tight fit with the bayonet assembly 52 after the claw assembly 51 is inserted into the bayonet assembly 52, providing additional locking force and preventing loosening of the connection. The design of the snap-fit ​​notch 513 enables the claw assembly 51 to resist interference from external forces in the engaged state. Even if shaken or bumped during use, it can maintain a stable connection between the fan housing 1 and the battery compartment 3, preventing accidental disengagement. When disassembly is required, the user only needs to apply a small force along the preset release direction to overcome the locking force of the snap-fit ​​notch 513 and easily separate the claw assembly 51 and the bayonet assembly 52 for convenient disassembly.

[0060] In some embodiments, when the first magnetic attraction component 41 and the second magnetic attraction component 42 are aligned with each other, the snap-fit ​​notch 513 snaps onto the bayonet component 52, and the insertion end 511 abuts against the inner surface of the bayonet component 52.

[0061] When the first magnetic attraction component 41 and the second magnetic attraction component are aligned, the snap-fit ​​notch 513 precisely engages with the bayonet component 52, while the insertion end 511 tightly abuts against the inner surface of the bayonet component 52, forming a double fixation. This tight fit ensures a secure connection between the battery compartment 3 and the fan housing 1, effectively preventing the connection from loosening.

[0062] In some embodiments, the opening direction of the snap-fit ​​notch 513 is opposite to the movement direction of the first magnetic chuck assembly 41 during the alignment process with the second magnetic chuck assembly 42.

[0063] In some embodiments, the opening direction of the snap-fit ​​notch 513 is the same as the movement direction of the second magnetic chuck assembly 42 during the alignment process with the first magnetic chuck assembly 41.

[0064] When the first magnetic suction component 41 aligns with the second magnetic suction component 42, there are two alignment methods. The first method involves the first magnetic suction component 41 moving towards the second magnetic suction component 42. At this time, the claw component 51 and the second magnetic suction component 42 are simultaneously mounted on the fan housing 1 or the battery compartment 3. Since the first magnetic suction component 41 and the jaw component 52 are mounted together, the movement of the first magnetic suction component 41 towards the second magnetic suction component 42 is equivalent to the movement of the jaw component 52 towards the claw component 51. The opening directions of the jaw component 52 and the engagement notch 513 are opposite; therefore, the opening direction of the engagement notch 513 is opposite to the direction of movement during the alignment process of the first magnetic suction component 41 towards the second magnetic suction component 42.

[0065] The second method involves the second magnetic component 42 moving towards the first magnetic component 41. At this time, the claw component 51 and the second magnetic component 42 are simultaneously mounted on the fan housing 1 or the battery compartment 3. The first magnetic component 41 and the latch component 52 are mounted together. Therefore, when the second magnetic component 42 moves towards the first magnetic component 41, the claw component 51 moves towards the latch component 52. The claw component 51 and the latching notch 513 are integrated; therefore, the opening direction of the latching notch 513 is the same as the direction of movement of the second magnetic component 42 towards the first magnetic component 41 during the alignment process.

[0066] In some embodiments, the portable fan further includes a first connection terminal 13 and a second connection terminal 31, the first connection terminal 13 being disposed on the fan housing 1 and the second connection terminal 31 being disposed on the battery compartment 3, the first connection terminal 13 and the second connection terminal 31 being electrically connected and / or signal connected.

[0067] In some implementations, the first connection terminal 13 and the second connection terminal 31 are used only for signal connection, while the power connection is made through the peripheral's wires.

[0068] In some implementations, the first connection terminal 13 and the second connection terminal 31 are used solely for power transmission.

[0069] In some embodiments, the first connection terminal 13 and the second connection terminal 31 are used to achieve electrical connection and signal connection.

[0070] The electrical connection between the first connection terminal 13 and the second connection terminal 31 ensures that the battery compartment 3 can stably power the fan assembly 2, guaranteeing the normal operation of the fan. In addition to power transmission, the connection terminals can also be used to transmit control signals, such as fan on / off and speed control commands, enabling users to operate the fan smoothly and improving the product's functional integrity and ease of use.

[0071] In some embodiments, when the claw assembly 51 is aligned with the bayonet assembly 52, the first connecting terminal 13 and the second connecting terminal 31 are misaligned and the first connecting terminal 13 and the second connecting terminal 31 are disconnected from each other.

[0072] When the claw assembly 51 is aligned with the bayonet assembly 52, the first connecting terminal 13 and the second connecting terminal 31 are misaligned and disconnected from each other. This design ensures that the circuit will not be connected before the fan housing 1 and the battery compartment 3 are fully assembled, effectively preventing accidental power-on due to misoperation and improving product safety.

[0073] When the claw assembly 51 aligns with the bayonet assembly 52, the positions of the fan housing 1 and the battery compartment 3 are not yet finalized. If the connecting terminals are conductive at this time, the contact area and pressure of the connecting terminals will continuously change with slight changes in position during assembly, leading to unstable current and voltage. This could not only damage the electronic components of the fan and battery compartment 3, but also cause serious safety hazards such as short circuits and arcing. This solution avoids the above problems by misaligning the connecting terminals and disconnecting the electrical connection when the claw assembly 51 aligns with the bayonet assembly 52. ​​Only when the claw assembly 51 is fully engaged with the bayonet assembly 52, and the positions of the fan housing 1 and the battery compartment 3 are stably fixed, can the connecting terminals achieve precise alignment and stable conductivity. This ensures the safety of the assembly process and improves the quality and reliability of the connection.

[0074] like Figure 6 As shown, in some embodiments, the bayonet assembly 52 includes a first bayonet 521 and a second bayonet 522, and a first connecting terminal 13 is disposed between the first bayonet 521 and the second bayonet 522.

[0075] In some embodiments, the claw assembly 51 includes a first claw 514 and a second claw 515, and a second connecting terminal 31 is disposed between the first claw 514 and the second claw 515.

[0076] The first connecting terminal 13 is positioned between the first latch 521 and the second latch 522, and the second connecting terminal 31 is positioned between the first claw 514 and the second claw 515, so that the electrical connecting terminal is located between the two latching structures. When the claw assembly 51 engages with the latch assembly 52, the connecting terminal is securely clamped between the two latching structures, effectively preventing the connecting terminal from loosening due to vibration or external force, thereby significantly improving the stability of the electrical connection. At the same time, the linear distribution between the two points can effectively resist the effect of rotational torque, further improving the stability of the electrical connection. The tight fit of the latching structure reduces the change in contact resistance between the connecting terminals, ensuring the stability and reliability of current transmission, avoiding voltage drop or current fluctuation caused by poor contact, and improving the operating efficiency and performance of the fan.

[0077] It should be noted that any of the embodiments in this example can be implemented independently or in combination with one or more other embodiments. When implementing in combination, the combination method should not be limited to the combination methods listed in this example.

[0078] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A portable fan with optimized structure, characterized in that, include: A fan housing, wherein an air inlet and an air outlet are provided on the fan housing; A fan assembly disposed within the fan housing; A battery compartment, which is detachably connected to the fan housing; A magnetic connection part is provided on the fan housing and the battery compartment respectively, so that the fan housing and the battery compartment are magnetically connected; The snap-fit ​​connection is provided on the fan housing and the battery compartment respectively, so that the fan housing and the battery compartment are snapped together. The snap-fit ​​connection is provided with a release space for easy disassembly. The magnetic connection is used to restrict the movement of the snap-fit ​​connection towards the release space within a preset force range.

2. The portable fan with optimized structure according to claim 1, characterized in that, The buckle connection includes a bayonet assembly and a claw assembly, wherein the bayonet assembly is formed on the fan housing and the claw assembly is disposed on the battery compartment; The magnetic connection part includes: a first magnetic component and a second magnetic component, wherein the first magnetic component is disposed inside the fan housing and the second magnetic component is disposed inside the battery compartment; When the claw assembly is aligned with the bayonet assembly, the first magnetic suction assembly and the second magnetic suction assembly are misaligned so that the claw assembly and the bayonet assembly engage during the magnetic alignment process.

3. The portable fan with optimized structure according to claim 1, characterized in that, The buckle connection includes a bayonet assembly and a claw assembly, wherein the bayonet assembly is formed on the battery compartment and the claw assembly is disposed on the fan housing; The magnetic connection part includes: a first magnetic component and a second magnetic component, wherein the first magnetic component is disposed inside the fan housing and the second magnetic component is disposed inside the battery compartment; When the claw assembly is aligned with the bayonet assembly, the first magnetic suction assembly and the second magnetic suction assembly are misaligned so that the claw assembly and the bayonet assembly engage during the magnetic alignment process.

4. The portable fan with optimized structure according to claim 2 or 3, characterized in that, The claw assembly includes a plug-in end and a connecting end. The connecting end is connected to the fan housing or battery compartment. The shape of the plug-in end is adapted to the shape of the jaw assembly. A snap-fit ​​notch is provided between the plug-in end and the connecting end. The radial cross-sectional area of ​​the snap-fit ​​notch is smaller than the maximum radial cross-sectional area of ​​the plug-in end.

5. The portable fan with optimized structure according to claim 4, characterized in that, When the first magnetic suction component and the second magnetic suction component are aligned with each other, the snap-fit ​​notch engages with the bayonet component, and the insertion end abuts against the inner surface of the bayonet component.

6. The portable fan with optimized structure according to claim 4, characterized in that, The opening direction of the snap-fit ​​notch is opposite to the movement direction of the first magnetic component during the alignment process with the second magnetic component; or... The opening direction of the snap-fit ​​notch is the same as the movement direction of the second magnetic component during the alignment process with the first magnetic component.

7. The portable fan with optimized structure according to claim 4, characterized in that, The portable fan further includes: a first connection terminal and a second connection terminal, the first connection terminal being disposed on the fan housing, and the second connection terminal being disposed on the battery compartment, the first connection terminal and the second connection terminal being electrically connected and / or signal connected.

8. The portable fan with optimized structure according to claim 7, characterized in that, When the claw assembly is aligned with the bayonet assembly, the first connecting terminal and the second connecting terminal are misaligned and the first connecting terminal and the second connecting terminal are disconnected from each other.

9. The structurally optimized portable fan according to claim 7, characterized in that, The bayonet assembly includes a first bayonet and a second bayonet, with the first connecting terminal disposed between the first bayonet and the second bayonet.

10. The structurally optimized portable fan according to claim 7, characterized in that, The jaw assembly includes a first jaw and a second jaw, with the second connecting terminal disposed between the first jaw and the second jaw.

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