Portable fan

Abstract

A portable fan (10), comprising a housing assembly (100), a fan (200), a power supply module (300) and a retractable cable module (400), wherein the retractable cable module (400) is arranged on the housing assembly (100) and comprises a cable body (410) and a connector (420) connected to one end of the cable body (410), and the width of the connector (420) is not greater than the width of a cable outlet (100a). The cable body of the fan can be retracted into the cable outlet and then accommodated within the housing assembly, or can extend out of the housing assembly to connect the connector to an external electronic device and supply power to the external electronic device by means of the power supply module.

Description

Portable fan Technical Field

[0001] This invention relates to the field of fan technology, and in particular to a portable fan. Background Technology

[0002] Portable fans, such as neck fans, waist fans, and handheld fans, are generally easy to carry and can cool users in hot weather. Due to their relatively good portability and cooling performance, and with the continuous improvement in battery life thanks to advancements in battery technology, these portable fans are increasingly accepted by users in outdoor and travel settings. However, when using these portable fans, users generally need to use a power bank to charge their mobile phones or other electronic devices, which causes inconvenience for consumers. Summary of the Invention

[0003] This invention provides a portable fan that improves user convenience.

[0004] A portable fan, comprising:

[0005] The housing assembly has a cable outlet;

[0006] A fan is disposed on the housing assembly, and the housing assembly has an air outlet for the fan to discharge air.

[0007] A power module, disposed in the housing assembly and used to power the fan; and

[0008] A telescopic cable module is disposed in the housing assembly and includes a cable body and a connector connected to one end of the cable body. The width of the connector is not greater than the width of the outlet. The cable body can retract into the outlet to be housed in the housing assembly, or extend out of the housing assembly to connect the connector to an external electronic device, and supply power to the external electronic device through the power module.

[0009] A portable fan, comprising:

[0010] A housing assembly includes a first housing and a second housing connected to the first housing, wherein the first housing and the second housing together form a cable outlet.

[0011] A fan is disposed on the housing assembly, and the housing assembly has an air outlet for the fan to discharge air.

[0012] A power module, disposed in the housing assembly and used to power the fan; and

[0013] A telescopic cable module is disposed in the housing assembly and includes a cable body and a connector connected to one end of the cable body. The width of the connector is greater than the width of the outlet. The cable body can retract into the outlet to be housed in the housing assembly, or extend out of the housing assembly to connect the connector to an external electronic device, and supply power to the external electronic device through the power module. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a schematic diagram of a portable fan according to the first embodiment;

[0016] Figure 2 is an exploded view of the portable fan shown in Figure 1;

[0017] Figure 3 is an exploded view of the telescopic cable module of a portable fan according to an embodiment;

[0018] Figure 4 is an enlarged schematic diagram of point A of the telescopic line module shown in Figure 3;

[0019] Figure 5 is a schematic diagram of another portable fan according to the first embodiment;

[0020] Figure 6 is an exploded view of the portable fan shown in Figure 5;

[0021] Figure 7 is a schematic diagram of another portable fan according to the first embodiment;

[0022] Figure 8 is an exploded view of the portable fan shown in Figure 7;

[0023] Figure 9 is a schematic diagram of one embodiment of the portable fan of the first embodiment;

[0024] Figure 10 is a schematic diagram of a mating state between the pop-out component and the connector in the first embodiment;

[0025] Figure 11 is a schematic diagram of another mating state between the pop-out component and the connector shown in Figure 10;

[0026] Figure 12 is an enlarged schematic diagram of point B of the portable fan shown in Figure 6;

[0027] Figure 13 is a schematic diagram of another embodiment of the portable fan of the first embodiment;

[0028] Figure 14 is a schematic diagram of the portable fan of the second embodiment;

[0029] Figure 15 is an exploded view of the portable fan shown in Figure 14. Detailed Implementation

[0030] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0033] Referring to Figures 1, 2, and 3, and in conjunction with Figure 4, a portable fan 10 is disclosed in the first embodiment of this application, including a housing assembly 100, a fan 200, a power module 300, and a telescopic cable module 400. The housing assembly 100 provides support for the entire structure and has a cable outlet 100a and an air outlet 100b. The fan 200 is disposed on the housing assembly 100 and exhausts air from the air outlet 100b. In some embodiments, the fan 200 is an axial flow fan. In other embodiments, the fan 200 can be a centrifugal fan. In other embodiments, the fan 200 can also employ an air compressor, such as a turbocharger, to achieve a bladeless design for the portable fan 10, resulting in a bladeless fan 200 and a simpler appearance.

[0034] In some embodiments, as shown in Figures 1 and 2, the portable fan 10 is a handheld fan. The housing assembly 100 includes an air outlet 110 and a grip portion 120 connected to the air outlet 110. The air outlet 110 has an air outlet 100b. The fan 200 is disposed in the air outlet 110, and the power module 300 and the retractable cord module 400 are disposed in the grip portion 120. One of the air outlet 110 and the grip portion 120 has a cord outlet 100a. Of course, in other embodiments, the fan 200 may be disposed in the grip portion 120, and the power module 300 and the retractable cord module 400 may also be disposed in the air outlet 110. The user can hold the grip portion 120 of the portable fan 10 and direct the air outlet 100b toward parts of the body, such as the face or neck, to cool down the user.

[0035] In other embodiments, referring to Figures 5 and 6, the portable fan 10 may include a wearing part 500 connected to the housing assembly 100 for wearing on a user's body. In some embodiments, the wearing part 500 is a curved metal piece having a free end that can be driven to open and close relative to the housing assembly 100, and can be worn on a belt or backpack strap, etc., via the wearing part 500. Portable fans 10 in such embodiments are typically waist-mounted fans, clip-on fans, etc.

[0036] Referring to Figures 7 and 8, in other embodiments, the shell assembly 100 may also form a space for wearing on a user's body, for example, the shell assembly 100 may form an open ring shape, allowing the user to wear this portable fan 10 around their neck. The portable fan 10 shown in Figure 7 may also be referred to as a neck fan 200.

[0037] This application uses a handheld fan as an example for illustration. For other types of portable fans 10, adaptive modifications can be made, and they should not be excluded from the protection scope of this application.

[0038] Referring again to Figure 2, the power module 300 is located in the housing assembly 100 and is used to power the fan 200. The power module 300 of the portable fan 10 generally includes a rechargeable battery, such as a lithium battery. With advancements in battery technology, battery capacity is continuously increasing, thus steadily improving the battery life of the portable fan 10. Furthermore, the portable fan 10 may include a circuit board 600 located within the housing assembly 100. The fan 200, power module 300, and retractable cable module 400 are electrically connected to the circuit board 600. The circuit board 600 may integrate the control circuitry and power management unit of the fan 200. The housing assembly 100 may also have buttons, a rotating wheel, or other structures. These structures correspond to the triggering structures on the circuit board 600 and are used to control the start and stop of the fan 200 or adjust its speed. The buttons are not limited to physical buttons; they can also be virtual buttons, such as those displayed on a touchscreen.

[0039] Referring to Figure 3, the retractable cable module 400 is disposed in the housing assembly 100 and includes a cable body 410 and a connector 420 connected to one end of the cable body 410. The cable body 410 is electrically connected to the circuit board 600, and the width of the connector 420 is no greater than the width of the cable outlet 100a. The cable body 410 can retract into the cable outlet 100a to be housed within the housing assembly 100, or extend out of the housing assembly 100 to connect the connector 420 to an external electronic device, and supply power to the external electronic device through the power module 300. In some embodiments, the cable body 410 can be wound up and housed within the housing assembly 100 to achieve a concealed cable body 410 effect, allowing the portable fan 10 to maintain a relatively simple appearance and avoiding inconvenience caused by the cable body 410 to the user during daily use. When a user needs to power external electronic devices such as mobile phones, the cable 410 of the retractable cable module 400 can be pulled out from the housing assembly 100 and connected to the external electronic device via the connector 420. The power module 300 of the portable fan 10 then powers these external electronic devices, such as charging a mobile phone. The connector 420 is not limited to a Type-C interface, or a Micro-USB interface, or a Lightning interface, or a magnetic charging interface, etc., and will not be elaborated further here.

[0040] In this embodiment, the width of the connector 420 is not greater than the width of the outlet 100a. This can be understood as the cross-sectional area of ​​the connector 420 not being greater than the cross-sectional area of ​​the outlet 100a. This allows the connector 420 to extend from the outlet 100a within the housing assembly 100 during assembly. After the telescopic cable module 400 is assembled into the housing assembly 100, the connector 420 extends outside the housing assembly 100, ensuring smooth assembly between the telescopic cable module 400 and the housing assembly 100. It is understood that the width of the outlet 100a can be equal to or slightly greater than the width of the connector 420, or the cross-sectional area of ​​the outlet 100a can be equal to or slightly greater than the cross-sectional area of ​​the connector 420. This prevents the opening of an excessively large outlet 100a in the housing assembly 100 from causing significant damage to the overall appearance of the housing assembly 100.

[0041] Referring to Figure 3, the telescopic cable module 400 may include a housing 430 disposed within the housing assembly 100 (e.g., the grip portion 120). The housing 430 is fixed in position relative to the power module 300, and the cable 410 is telescopically disposed within the housing 430. The housing 430 may be fixedly connected to the circuit board 600 or to the housing assembly 100, thereby achieving relative fixation between the housing 430 and the circuit board 600. The telescopic cable module 400, including the housing 430, can be manufactured as an independent module and assembled into the housing assembly 100, thereby improving assembly efficiency and ensuring the reliability of the telescopic cable module 400.

[0042] The telescopic cable module 400 may include a circuit board 440, a torsion spring 450, and a turntable 460 disposed within a housing 430. The circuit board 440 is fixedly positioned relative to the housing 430, for example, it is fixedly connected to the housing 430 or the housing assembly 100. The circuit board 440 is electrically connected to the circuit board 600, for example, through wire bonding. The torsion spring 450 may be helical, with one end fixedly positioned relative to the housing 430 and the other end fixedly positioned relative to the turntable 460. The turntable 460 is rotatably connected to the housing 430; for example, one of the turntable 460 and the housing 430 has a rotating shaft, and the other has a shaft hole that mates with the rotating shaft. A wire 410 is wound around the outer periphery of a torsion spring 450. One of the circuit board 440 and the turntable 460 has a contact pin (not shown), and the other has a ring conductor (not shown). The contact pin makes contact with the ring conductor, thus establishing electrical connection between the wire 410 and the contact pin or ring conductor on the turntable 460. For example, the circuit board 440 may have a contact pin, the turntable 460 may have a ring conductor, and the wire 410 may be electrically connected to the ring conductor; or the circuit board 440 may have a ring conductor, the turntable 460 may have a contact pin, and the wire 410 may be electrically connected to the contact pin, thus establishing electrical connection between the wire 410 and the circuit board 440. Alternatively, the wire 410 can also be directly electrically connected to the circuit board 440 via wire bonding or other methods.

[0043] The cable 410 can be held in place by the turntable 460. When the user pulls the cable 410, the turntable 460 rotates relative to the housing 430 in one direction, such as clockwise, gradually extending beyond the housing 430. During this process, the contact pin remains in contact with the annular conductor, ensuring the electrical connection between the cable 410 and the circuit board 600. During this process, the torsion spring 450 accumulates elastic potential energy, causing the turntable 460 to tend to rotate counterclockwise. When the user no longer needs to power external electronic devices via the portable fan 10, the torsion spring 450 releases its elastic potential energy, causing the cable 410 extending beyond the housing 430 to gradually retract back into the housing 430.

[0044] Referring to Figure 4, in some embodiments, the telescopic cable module 400 includes a locking block 470 rotatably connected to the housing 430. The turntable 460 has a locking position 461 and an unlocking position 463. During the process of the cable 410 being pulled out of the housing 430, when the cable 410 drives the turntable 460 to rotate to the locking position 461 corresponding to the locking block 470, the locking block 470 restricts the rotation of the turntable 460. When the cable 410 continues to be pulled out of the housing 430 and drives the turntable 460 to rotate, the locking block 470 rotates relative to the housing 430 and moves to the unlocking position 463, so that the cable 410 can gradually be wound into the housing 430. Figure 4 shows that the turntable 460 is provided with corresponding limiting grooves 460a and guide grooves 460b. The groove wall of the limiting groove 460a can serve as the locking position 461, and the connection between the groove wall of the guide groove 460b and the groove wall of the limiting groove 460a is the unlocking position 463.

[0045] The sidewall of the guide groove 460b can guide and limit the movement of the end of the locking block 470, so that during the pulling process of the cable 410, the end of the locking block 470 continues to move along the guide groove 460b. When the user stops pulling the cable 410 out, the torsion spring 450 drives the turntable 460 to rotate in the opposite direction (e.g., clockwise), and the end of the locking block 470 is guided by the sidewall of the guide groove 460b into the limiting groove 460a, thereby stopping the cable 410. When the user continues to pull the cable 410 out, the turntable 460 continues to rotate in the original direction (e.g., counterclockwise), and the end of the locking block 470 exits the limiting groove 460a and enters the guide groove 460b, allowing the cable 410 to continue to be pulled out. It is understood that the above functions can be achieved by designing the depth and width of the guide groove 460b and the limiting groove 460a, which will not be elaborated further in this application.

[0046] When the user pulls the cable 410 out of the cover 430 and drives the turntable 460 to rotate, the end of the locking block 470 moves along the guide groove 460b to the locking position 461. At this time, if the user stops pulling the cable 410, under the action of the torsion spring 450, the end of the locking block 470 abuts against the groove wall of the limiting groove 460a, and the turntable 460 stops rotating, thus achieving the locking effect of the cable 410. When the user continues to pull the cable 410 out of the cover 430 and drives the turntable 460 to rotate, the locking block 470 rotates relative to the cover 430 and retracts to the guide groove 460b. It can switch to the guide groove 460b and continue to move along the guide groove 460b, that is, reach the unlocking position 463. The turntable 460 can continue to rotate and make the cable 410 continuously extend out of the cover 430, or the cable 410 can gradually be wound back into the cover 430. The combination of the above-mentioned locking block 470 and turntable 460 enables the yarn body 410 to stop automatically and rewind automatically, improving ease of use. Moreover, the turntable 460 can be set with more than two stopping positions 461 and unlocking positions 463, with the stopping positions 461 and unlocking positions 463 corresponding one-to-one.

[0047] Of course, in other embodiments, other structures can be used to replace the locking effect of the locking block 470 on the cable 410. For example, the portable fan 10 may include a limiting member (not shown) that is movably fitted to the housing assembly 100. The limiting member has a first state and a second state. In the first state, the cable 410 can be pulled out or retracted into the housing assembly 100. In the second state, the limiting member abuts against the cable 410 and restricts the movement of the cable 410 relative to the housing assembly 100.

[0048] For example, the limiting member slides with the shell assembly 100, and the sliding of the limiting member with the shell assembly 100 has appropriate damping to prevent the limiting member from easily retracting. When the user needs to stop the cable 410 while pulling it out, the limiting member is pushed relative to the shell assembly 100 to the position that abuts the cable 410, i.e., the second state, which can stop the cable 410 in the shell assembly 100; when the user needs to retract the cable 410 into the shell assembly 100, the limiting member is pushed in the opposite direction to the first state. After the limiting member no longer abuts the cable 410, the cable 410 can be rewound into the cover 430 under the action of the torsion spring 450 and the turntable 460.

[0049] For example, the limiting member rotates with the housing assembly 100. The limiting member may have an eccentric wheel structure and appropriate rotational damping to prevent the limiting member from easily retracting. When the user needs to stop the cable 410 while pulling it out, the limiting member is rotated so that the eccentric wheel of the limiting member presses against the cable 410, thus reaching the second state and stopping the cable 410 in the housing assembly 100. When the user needs to retract the cable 410 into the housing assembly 100, the limiting member is rotated in the opposite direction to the first state. After the eccentric wheel of the limiting member no longer presses against the cable 410, the cable 410 can be retracted into the cover 430 under the action of the torsion spring 450 and the turntable 460.

[0050] Both of the above-described limiting components can stop the yarn 410, and when combined with the torsion spring 450, they can achieve automatic winding, improving ease of use. In other embodiments, the limiting components can also adopt other structural forms to achieve the stopping effect on the yarn 410.

[0051] It is understandable that the housing 430 of the telescopic cable module 400 is not necessary and can be omitted to simplify the structure of the portable fan 10 and improve its compactness. For example, the telescopic cable module 400 includes a torsion spring 450 and a turntable 460 rotatably connected to the housing assembly 100 or the circuit board 600. One free end of the torsion spring 450 is connected to the turntable 460, and the other free end of the torsion spring 450 is fixed relative to the position of the circuit board 600. The cable 410 is wound around the outer periphery of the torsion spring 450 and is directly electrically connected to the circuit board 600, for example, by soldering or by combining lead wires, or the cable 410 is electrically connected to the circuit board 600 through a contact pin and a ring conductor. The cable 410 can be held in place by the turntable 460. When the user pulls the cable 410, it causes the turntable 460 to rotate relative to the housing assembly 100 in one direction, such as clockwise, gradually extending beyond the housing assembly 100. During this process, the torsion spring 450 accumulates elastic potential energy, causing the turntable 460 to tend to rotate counterclockwise. When the user no longer needs to power external electronic devices through the portable fan 10, the torsion spring 450 releases its elastic potential energy, causing the cable 410 extending beyond the housing assembly 100 to gradually retract into the housing assembly 100.

[0052] In this embodiment, the telescopic cable module 400 may also include a locking block 470, and the turntable 460 has a locking position 461 and an unlocking position 463. During the process of the cable 410 being pulled out of the shell assembly 100, when the cable 410 drives the turntable 460 to rotate to the locking position 461 corresponding to the locking block 470, the locking block 470 restricts the rotation of the turntable 460. As the cable 410 continues to be pulled out of the shell assembly 100 and drives the turntable 460 to rotate, the locking block 470 moves relative to the turntable 460 to the unlocking position 463, so that the cable 410 gradually winds back into the shell assembly 100. The locking principle and structure of the locking block 470 for the cable 410, as well as the unlocking principle and structure, can be referred to the foregoing content and will not be repeated here. The cooperation between the locking block 470 and the turntable 460 can achieve the locking of the cable 410, and combined with the torsion spring 450, an automatic winding effect can be achieved, improving the convenience of use.

[0053] Of course, in this embodiment, the portable fan 10 may also include a limiting member that is movably fitted to the housing assembly 100. The limiting member has a first state and a second state. In the first state, the cord 410 can be pulled out or retracted into the housing assembly 100. In the second state, the limiting member abuts against the cord 410 and restricts the movement of the cord 410 relative to the housing assembly 100. The principle and structure of the limiting member in stopping the cord 410, as well as the principle and structure of unlocking the cord, can be referred to the foregoing content and will not be repeated here. The structure of the limiting member can achieve the stopping of the cord 410, and combined with the torsion spring 450, it can achieve an automatic winding effect, improving the convenience of use. In other embodiments, the limiting member can also adopt other structural forms to achieve the stopping effect of the cord 410.

[0054] Referring to Figure 9, in some embodiments, the connector 420 has a first position and a second position relative to the housing assembly 100. In the first position, the cable 410 is housed within the housing assembly 100, and the connector 420 is at least partially housed within the outlet 100a. In the second position, the cable 410 and the connector 420 extend beyond the housing assembly 100 for docking with external electronic devices. In other words, in the first position, the connector 420 can partially protrude beyond the outlet 100a to prevent it from extending too far beyond the housing assembly 100 and causing inconvenience, while also allowing the user to easily pinch the connector 420 with their fingers and pull the connector 420 and the cable 410 out of the housing assembly 100. Of course, in the first position, the connector 420 can also be completely housed within the outlet 100a.

[0055] Referring to Figures 10 and 11, in this embodiment, the portable fan 10 may include a pop-out component 700 disposed in the housing assembly 100. The pop-out component 700 is triggered to cause the connector 420 in a first position to pop out of the housing assembly 100 from the outlet 100a. Specifically, the pop-out component 700 may include an elastic element 710 disposed within the housing assembly 100 and a slider 720 connected to the elastic element 710. During the process of the connector 420 switching from a second position to a first position, the connector 420 drives the slider 720 to move within the housing assembly 100 and lock in the first position, while the elastic element 710 accumulates elastic potential energy, as shown in Figure 11. The slider 720 is triggered to unlock from the housing assembly 100, and the elastic element 710 drives the slider 720 to pop out of the housing assembly 100, as shown in Figure 10.

[0056] Specifically, referring to Figures 10 and 11, in some embodiments, the pop-out assembly 700 includes a mounting base 730 connected to the housing assembly 100, a pull rod 740 rotatably connected to the mounting base 730 at one end, a slider 720 slidably engaged with the mounting base 730, an elastic member 710 at one end connected to the mounting base 730 and the other end connected to the slider 720, and the other end of the pull rod 740 slidably engaged with the slider 720. During the process of the connector 420 being pressed into the outlet 100a and moving towards a first position, the connector 420 drives the slider 720 to move relative to the mounting base 730, so that the pull rod 740 engages with the slider 720 at the first position. When the pull rod 740 engages with the slider 720, pushing the connector 420 inward along the outlet 100a unlocks the pull rod 740 from the slider 720, allowing the elastic member 710 to push the connector 420 out of the outlet 100a via the slider 720.

[0057] Specifically, the slider 720 may have a groove 721, which includes an entry groove 721a, an engagement groove 721b, and an exit groove 721c. The engagement groove 721b communicates with both the entry groove 721a and the exit groove 721c, and the exit groove 721c communicates with the entry groove 721a. The bottom wall of the entry groove 721a has multiple steps to increase the depth of the entry groove 721a from its entrance towards the engagement groove 721b. The depth of the exit groove 721c is less than the depth of the engagement groove 721b, and the bottom wall of the exit groove 721c smoothly transitions to the bottom wall of the engagement groove 721b. The depth of the exit groove 721c is less than the depth of the entrance to the entry groove 721a, thereby preventing the free end of the pull rod 740 from being mistakenly pushed into the exit groove 721c at the entrance of the entry groove 721a. Pushing the connector 420 inward along the outlet 100a, the free end of the pull rod 740 slides into the inlet of the inlet groove 721a and slides along the extension direction of the inlet groove 721a to slide into the engagement groove 721b. The pull rod 740 engages with the slider 720 in the engagement groove 721b, so that the slider 720 is locked to the mounting base 730, and the connector 420 reaches the first position. When the pull rod 740 engages with the slider 720, pushing the connector 420 inward along the outlet 100a, the pull rod 740 slides into the exit groove 721c and slides along the extension direction of the exit groove 721c towards the inlet of the inlet groove 721a. The elastic element 710 pushes the connector 420 out of the outlet 100a through the slider 720.

[0058] In this pop-out component 700, during the process of the cable 410 being housed in the housing component 100, the user pushes the connector 420 into the cable outlet 100a. The stepped structure formed by the height difference between the connector 420 and the cable 410 can push the slider 720 to move, thereby causing the free end of the pull rod 740 to move in the slide groove 721 and engage with the engagement groove 721b. When the free end of the pull rod 740 is engaged with the engagement groove 721b, the connector 420 reaches the first position, and the slider 720 is locked inside the housing component 100. The user can easily put the portable fan 10 into a bag or pocket, preventing the connector 420 from hanging directly outside the housing component 100 and thus affecting the convenience of use. With this structural design, when the connector 420 is in the first position, the housing component 100 can also protect the connector 420, preventing it from being scratched or damaged due to accidental collisions.

[0059] When the user needs to use the connector 420 to power an external electronic device, pushing the connector 420 into the outlet 100a causes the stepped structure formed by the height difference between the connector 420 and the cable 410 to push the slider 720 further into the housing assembly 100. This causes the free end of the pull rod 740 to move in the slide groove 721, disengaging from the engagement groove 721b and moving to the exit groove 721c. Under the restoring force of the elastic element 710, the slider 720 is driven to reset, thus pushing the connector 420 out of the outlet 100a, achieving the function of the connector 420 popping out of the housing assembly 100. When the slider 720 resets to its initial position, the connector 420 can be considered to have moved to the second position. At this time, the user can easily pinch the connector 420, pull the cable 410 out of the housing assembly 100, and then connect the connector 420 to the external electronic device to power it.

[0060] Referring to Figure 12, in some embodiments, the slider 720 has an integrally formed body 723 and a stop 725. An elastic member 710 is connected to the body 723. The ejector assembly 700 includes a mounting box 750 fixed relative to the housing assembly 100, and a latch 760 movably disposed in the mounting box 750. During the switching of the connector 420 from the second position to the first position, the connector 420 drives the slider 720 to move within the housing assembly 100 and causes the stop 725 to pass over the latch 760. At the first position, the latch 760 locks with the stop 725, thereby positioning the connector 420 in the first position. The latch 760 can be driven to open so that the elastic member 710 drives the stop 725 to disengage from the latch 760, and drives the slider 720 to eject the connector 420 from the housing assembly 100. The mounting box 750 may have a spring or other structure inside, or the pawl 760 may work with a torsion spring 450 or other structure to keep the pawl 760 in a closed state, so that the stop 725 of the slider 720 is reliably held in the pawl 760 in the first position. By using an exposed button, pull cord or other structure to drive the pawl 760 to open, the elastic element 710 can push the slider 720 to return to its original position, and then the slider 720 can push the connector 420 to eject the shell assembly 100.

[0061] Referring to Figure 13, in some embodiments, when the connector 420 is not in use, the connector 420 may be entirely located outside the housing assembly 100. The portable fan 10 may include a decorative ring 800, which passes through the cable outlet 100a and is confined within the housing assembly 100. The decorative ring 800 has a through hole for the cable 410 to pass through, and the width of the through hole is smaller than the width of the connector 420. In other words, the cross-sectional area of ​​the through hole is smaller than the cross-sectional area of ​​the connector 420. The through hole allows the cable 410 to extend and retract freely, but restricts the connector 420 from being retracted into the housing assembly 100, and appropriately seals the cable outlet 100a to prevent dust or droplets from easily entering the excessively large cable outlet 100a, thereby achieving a certain degree of waterproof and dustproof effect, and preventing the excessively large cable outlet 100a from damaging the overall appearance of the housing assembly 100, that is, improving the overall appearance of the housing assembly 100.

[0062] In this embodiment, the decorative ring 800 can be in the form of an open ring. The material of the open ring decorative ring 800 is not limited to hardware (such as stainless steel), silicone or rubber, etc. It can be conveniently fitted around the outer periphery of the wire body 410. During the assembly of the telescopic wire module 400 and the shell assembly 100, the connector 420 passes through the outlet 100a from inside the shell assembly 100 to the outside of the shell assembly 100. The decorative ring 800 fitted on the wire body 410 can be moved to the outlet 100a position and riveted, glued or snapped to the shell assembly 100 at the outlet 100a, thereby ensuring the connection stability between the decorative ring 800 and the shell assembly 100. Of course, in other embodiments, the decorative ring 800 can be a circumferentially closed ring structure, and its material can be elastic silicone or rubber, etc. By stretching the decorative ring 800 to deform it, it can also be easily inserted into the connector 420 and fitted onto the wire body 410, thereby limiting the decorative ring 800 and the shell assembly 100 at the outlet 100a.

[0063] Further, referring to FIG13, in some embodiments, the housing assembly 100 has a recess 100c communicating with a cable outlet 100a, the cable outlet 100a being formed at the bottom of the recess 100c, and the cable 410 being bendable to confine the connector 420 within the recess 100c. For example, the portable fan 10 may include a magnetic member 900 connected to the housing assembly 100 and disposed corresponding to the bottom of the recess 100c, and the connector 420 having a mating member 421 for magnetically engaging with the magnetic member 900 to attach the connector 420 to the bottom of the recess 100c. Furthermore, one surface of the connector 420 in the thickness direction may be fitted to the bottom of the recess 100c; this surface may have a relatively large area, and the depth of the recess 100c need not be too large, to avoid excessively affecting the overall appearance of the housing assembly 100.

[0064] One of the magnetic attractor 900 and the mating part 421 is a magnet, and the other is a magnet or a ferromagnetic metal such as iron, cobalt, nickel, or their alloys. The magnetic attraction between the magnetic attractor 900 and the mating part 421 reliably confines the bent connector 420 of the wire 410 within the recess 100c, preventing the connector 420 from protruding outside the housing assembly 100 and thus avoiding any adverse effects on normal use. It is understandable that it is easier to implement a ferromagnetic metal component for the connector 420 and a magnet for the housing assembly 100; for example, a ferromagnetic metal component could be used to cover the outer periphery of the connector 420.

[0065] Of course, there are other ways to confine the connector 420 within the sink 100c than the one described above. For example, the wall of the sink 100c can have a retaining part to directly engage and confine the connector 420 within the sink 100c. In other words, in this embodiment, the side wall of the sink 100c or both sides of the connector 420 can be provided with a compressible retaining structure. During the process of pressing the connector 420 into the sink 100c, the retaining structure deforms, allowing the connector 420 to be engaged within the sink 100c. This method also ensures that the connector 420 is reliably confined within the sink 100c, and that the connector 420 can be easily removed from the sink 100c when needed, allowing the wire 410 to be pulled out from the housing assembly 100.

[0066] When a user carries the portable fan 10 and needs to charge it, the cable 410 of the retractable cable module 400 can be pulled out from the housing assembly 100 of the portable fan 10, and the connector 420 can be connected to an external electronic device such as a mobile phone. The power module 300 of the portable fan 10 then powers and charges the external electronic device, eliminating the need to carry a separate power bank and charging cable, thus improving convenience. When the external electronic device does not have a rechargeable battery, the user can also use the power module 300 of the portable fan 10 to power it. When the user no longer needs to power the external electronic device through the portable fan 10, the cable 410 of the retractable cable module 400 can be stored inside the housing assembly 100, allowing the portable fan 10 to maintain a relatively simple appearance, making it easy for the user to carry and improving convenience. Since the width of the connector 420 is no greater than the width of the outlet 100a, the connector 420 can pass through the shell assembly 100 during the assembly of the telescopic cable module 400 and the shell assembly 100, thereby ensuring the smooth assembly of the telescopic cable module 400 and the shell assembly 100. Example

[0067] Referring to Figures 14 and 15, a second embodiment of this application provides a portable fan 1000, including a housing assembly 1100, a fan 1200, a power module 1300, and a retractable cord module 1400. The housing assembly 1100 includes a first housing 1110 and a second housing 1120 connected to the first housing 1110, the first housing 1110 and the second housing 1120 enclosing each other to form a cable outlet 1100a. The fan 1200 is disposed on the housing assembly 1100, and the housing assembly 1100 has an air outlet 1100b for discharging air from the fan 1200. The power module 1300 is disposed on the housing assembly 1100 and is used to supply power to the fan 1200. The retractable cord module 1400 is disposed on the housing assembly 1100 and includes a cord body 1410 and a connector 1420 connected to one end of the cord body 1410, the width of the connector 1420 being greater than the width of the cable outlet 1100a. The cable 1410 can be retracted into the cable outlet 1100a to be housed within the housing assembly 1100, or extend out of the housing assembly 1100 to connect the connector 1420 to an external electronic device and supply power to the external electronic device via the power module 1300.

[0068] In the second embodiment, the fan 1200 can be an axial fan, a centrifugal fan, or a turbocharger, which will not be described in detail here. The portable fan 1000 of the second embodiment can be a handheld fan, as shown in FIG14. The housing assembly 1100 includes an air outlet 1101 and a grip portion 1102 connected to the air outlet 1101. The first housing 1110 and the second housing 1120 are configured as part or all of the grip portion 1102. One of the air outlet 1101 and the grip portion 1102 has a cable outlet 1100a. The air outlet 1101 has an air outlet 1100b, the fan 1200 is disposed in the air outlet 1101, and the power module 1300 and the retractable cable module 1400 are disposed in the grip portion 1102. Of course, the fan 1200 can be disposed in the grip portion 1102, and the power module 1300 and the retractable cable module 1400 can also be disposed in the air outlet 1101. Users can hold the handle 1102 of the portable fan 1000 and point the air outlet 1100b toward parts of the body, such as the face or neck, to blow air and cool them down.

[0069] The portable fan 1000 of the second embodiment may also include a wearing part 500 connected to the shell assembly 1100 as in the first embodiment, the wearing part 500 being worn on the user's body. That is, the portable fan 1000 of the second embodiment may also be a waist-mounted fan or a clip-on fan, etc. Of course, the shell assembly 1100 of the portable fan 1000 of the second embodiment may also form a space for wearing on the user's body, for example, the shell assembly 1100 may form an open ring shape, allowing the user to wear this portable fan 1000 around their neck, that is, the portable fan 1000 of the second embodiment may also be a neck-mounted fan, which will not be elaborated here.

[0070] The second embodiment is also illustrated using a handheld fan as an example. For other types of portable fans 1000, adaptive modifications can be made, and they should not be excluded from the protection scope of this application.

[0071] The power module 1300 is located in the housing assembly 1100 and is used to power the fan 1200. The power module 1300 of the portable fan 1000 generally includes a rechargeable battery, such as a lithium battery. With advancements in battery technology, battery capacity is continuously increasing, thus steadily improving the battery life of the portable fan 1000. Furthermore, the portable fan 1000 may include a circuit board 1600 located within the housing assembly 1100. The fan 1200, power module 1300, and cable 1410 are electrically connected to the circuit board 1600. The circuit board 1600 may integrate the control circuitry and power management unit of the fan 1200. The housing assembly 1100 may also have buttons, a rotating wheel, or other structures. These structures correspond to the trigger structures on the circuit board 1600 and are used to control the start / stop of the fan 1200 or adjust its speed. The buttons are not limited to physical buttons; they can also be virtual buttons, such as those displayed on a touchscreen.

[0072] In some embodiments, the cable 1410 can be wound and stored within the housing assembly 1100 to achieve a concealed effect, allowing the portable fan 1000 to maintain a relatively simple appearance and avoiding inconvenience caused by the cable 1410 during daily use. When the user needs to power external electronic devices such as mobile phones, the cable 1410 of the retractable cable module 1400 can be pulled out from the housing assembly 1100 and connected to the external electronic device via the connector 1420. The power module 1300 of the portable fan 1000 then powers these external electronic devices, such as charging a mobile phone. The connector 1420 is not limited to a Type-C interface, or a Micro-USB interface, or a Lightning interface, or a magnetic charging interface, etc., and will not be described in detail here.

[0073] The structure and working principle of the telescopic line module 1400 of the second embodiment of this application can be referred to the first embodiment. When the telescopic line module 1400 of the first embodiment is applied to the second embodiment, only adaptive deformation is required, which will not be described in detail here.

[0074] The difference from the first embodiment is that the housing assembly 1100 of the portable fan 1000 in the second embodiment may include a first housing 1110 and a second housing 1120 that are assembled separately, or in other words, the first housing 1110 and the second housing 1120 have a parting surface, and the two are assembled and enclosed to form a cable outlet 1100a. The width of the cable outlet 1100a can be smaller than the width of the connector 1420. For example, the cross-sectional area of ​​the cable outlet 1100a is smaller than the cross-sectional area of ​​the connector 1420. The cross-sectional area of ​​the cable outlet 1100a can be equivalent to the cross-sectional area of ​​the cable 1410 to allow the cable 1410 to extend and retract into the housing assembly 1100. In other words, in this embodiment, the width of the outlet 1100a is not required to be greater than or equal to the width of the connector 1420. The outlet 1100a can be set relatively small to reduce the damage to the overall appearance of the housing assembly 1100, while reducing the probability of dust and droplets entering the housing assembly 1100 from the outlet 1100a. In this embodiment, the first housing 1110 and the second housing 1120 can be assembled by mating, for example, by snapping, locking, or bonding, to form the outlet 1100a. During the assembly of the telescopic cable module 1400 and the housing assembly 1100, the cable 1410 is simply passed through the outlet 1100a, and the first housing 1110 and the second housing 1120 are mated together, thereby ensuring the smooth assembly of the telescopic cable module 1400 and the housing assembly 1100 and improving assembly efficiency.

[0075] Referring to Figure 15, in some embodiments, the first housing 1110 has a first notch 1111, and the second housing 1120 has a second notch 1121. The first notch 1111 and the second notch 1121 are joined to form a cable outlet 1100a. In this embodiment, the first notch 1111 and the second notch 1121 can be arranged in a mirror-symmetric manner about the parting surface to achieve a more harmonious appearance in the housing assembly 1100. In other embodiments, the length of the first notch 1111, or the distance between its end and the parting surface, can be greater than the length of the second notch 1121. The second notch 1121 may even be omitted, meaning that the second housing 1120 can form the cable outlet 1100a simply by joining the straight edge of the second housing 1110 with the first notch 1111 at the parting surface, thus facilitating the smooth assembly of the telescopic cable module 1400 in the housing assembly 1100.

[0076] The portable fan 1000 described above allows users to extend the cable 1410 of the retractable cable module 1400 from the housing assembly 1100 when they need to charge it. The connector 1420 is then connected to an external electronic device such as a mobile phone. The power module 1300 of the portable fan 1000 provides power and charging to the external device, eliminating the need to carry a separate power bank and charging cable, thus improving convenience. Even when the external electronic device does not have a rechargeable battery, the user can still power it using the power module 1300 of the portable fan 1000. When the user no longer needs to power the external electronic device through the portable fan 1000, the cable 1410 of the retractable cable module 1400 can be stored inside the housing assembly 1100, maintaining a clean and simple appearance for easy carrying and enhanced usability. Since the width of the connector 1420 is greater than the width of the outlet 1100a, the first housing 1110 and the second housing 1120 surround and form the outlet 1100a. During the assembly of the telescopic cable module 1400 and the housing assembly 1100, the cable 1410 passes through the outlet 1100a between the first housing 1110 and the second housing 1120. Then, the first housing 1110 and the second housing 1120 are assembled and fixed, which ensures the smooth assembly of the telescopic cable module 1400 and the housing assembly 1100.

[0077] Of course, in the second embodiment of this application, the portable fan 1000 may also include a decorative ring 800 similar to that in the first embodiment. The decorative ring 800 passes through the cable outlet 1100a and is fixedly connected to the first housing 1110 and the second housing 1120. The decorative ring 800 can be made of metal, such as stainless steel, or non-metallic material, such as rubber or silicone. The cable 1410 passes through the decorative ring 800. Even when the width of the cable outlet 1100a is smaller than that of the connector 1420, the decorative ring 800 can still play a good decorative role, preventing the cable outlet 1100a from being too wide and damaging the overall appearance of the housing assembly 1100, and providing better waterproof and dustproof effects. Furthermore, the combination of materials can reduce scratches or wear caused by direct friction between the cable 1410 and the first housing 1110 or the second housing 1120. For example, the decorative ring 800 contains a self-lubricating material or has a smooth surface to reduce wear on the cable 1410.

[0078] Of course, in the second embodiment, the first housing 1110 and the second housing 1120 can also be enclosed to form a recess 1100c communicating with the cable outlet. The cable outlet 1100a is located at the bottom of the recess 1100c, and the cable 1410 can be bent so that the connector 1420 is confined in the recess 1100c. For example, the portable fan 1000 may include a magnetic member 1500, which is connected to the housing assembly 1100 and is disposed corresponding to the bottom of the recess 1100c. The connector 1420 has a mating member 1421, which is used to magnetically engage with the magnetic member 1500 to attract the connector 1420 to the bottom of the recess 1100c. Furthermore, one of the surfaces of the connector 1420 in the thickness direction can be attached to the bottom of the recess 1100c. This surface has a relatively large area, and the depth of the recess 1100c does not need to be too large, so as to avoid having too much impact on the overall appearance of the housing assembly 1100.

[0079] One of the magnetic attractor 1500 and the mating part 1421 is a magnet, and the other is a magnet or a ferromagnetic metal such as iron, cobalt, nickel, or their alloys. The magnetic attraction between the magnetic attractor 1500 and the mating part 1421 reliably confines the bent connector 1420 of the wire 1410 within the recess 1100c, preventing the connector 1420 from dangling outside the housing assembly 1100 and adversely affecting normal use. It is understandable that it is easier to implement a ferromagnetic metal component for the connector 1420 and a magnet for the housing assembly 1100; for example, a ferromagnetic metal component can be used to cover the outer periphery of the connector 1420.

[0080] Of course, there are other ways to confine the connector 1420 within the sink 1100c than the one described above. For example, the wall of the sink 1100c can have a retaining part to directly engage and confine the connector 1420 within the sink 1100c. In other words, in this embodiment, the side wall of the sink 1100c or the two sides of the connector 1420 can be provided with a compressible retaining structure. During the process of pressing the connector 1420 into the sink 1100c, the retaining structure deforms, causing the connector 1420 to engage within the sink 1100c. This method also ensures that the connector 1420 is reliably confined within the sink 1100c, and that the connector 1420 can be easily removed from the sink 1100c when needed, and the wire 1410 can be pulled out from the housing assembly 1100. The structure and function of the sink 1100c can be referred to in the first embodiment, and will not be repeated here.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A portable fan, characterized in that, include: The housing assembly has a cable outlet; A fan is disposed on the housing assembly, and the housing assembly has an air outlet for the fan to discharge air. A power module is disposed in the housing assembly and is used to supply power to the fan; as well as A telescopic cable module is disposed in the housing assembly and includes a cable body and a connector connected to one end of the cable body. The width of the connector is not greater than the width of the outlet. The cable body can retract into the outlet to be housed in the housing assembly, or extend out of the housing assembly to connect the connector to an external electronic device, and supply power to the external electronic device through the power module.

2. The portable fan of claim 1, wherein, The connector has a first position and a second position relative to the housing assembly. In the first position, the cable is housed within the housing assembly, and the connector is at least partially housed within the outlet. In the second position, the cable and the connector extend out of the housing assembly for docking with the external electronic device.

3. The portable fan of claim 2, wherein, The portable fan includes a pop-out component disposed on the housing assembly, the pop-out component being triggered to cause the connector in a first position to pop out of the housing assembly from the outlet.

4. The portable fan of claim 3, wherein, The pop-out component includes an elastic element disposed within the shell assembly and a slider connected to the elastic element. During the process of the connector switching from the second position to the first position, the connector drives the slider to move within the shell assembly and lock it in the first position, and the elastic element accumulates elastic potential energy. The slider is used to be triggered to unlock from the shell assembly, and the elastic element drives the slider to cause the connector to pop out of the shell assembly.

5. The portable fan of claim 4, wherein, The pop-out component includes a mounting base connected to the shell component, and a pull rod rotatably connected to the mounting base at one end. The slider is slidably engaged with the mounting base. One end of the elastic element is connected to the mounting base, and the other end of the elastic element is connected to the slider. The other end of the pull rod is slidably engaged with the slider. During the process of the connector being pressed into the outlet and moving to the first position, the connector drives the slider to move relative to the mounting base so that the pull rod engages with the slider at the first position; when the pull rod engages with the slider, the connector is pushed inward along the outlet, the pull rod can unlock from the slider, and the elastic element pushes the connector out of the outlet through the slider.

6. The portable fan of claim 5, wherein, The slider has a sliding groove, which includes an entry groove, an engagement groove, and an exit groove. The engagement groove communicates with the entry groove and the exit groove, respectively, and the exit groove communicates with the entry groove. The bottom wall of the entry groove has multiple steps to increase the depth of the entry groove from the entrance to the engagement groove. The depth of the exit groove is less than the depth of the engagement groove, and the bottom wall of the exit groove smoothly transitions to the bottom wall of the engagement groove. Pushing the connector inward along the outlet, the free end of the pull rod is... The inlet of the inlet slides into the inlet groove and slides along the extension direction of the inlet groove to slide into the engagement groove. The pull rod engages with the slider in the engagement groove so that the slider is locked to the mounting base, and the connector reaches the first position. When the pull rod engages with the slider, the connector is pushed inward along the outlet. The pull rod slides into the exit groove and slides along the extension direction of the exit groove toward the inlet of the inlet groove. The elastic element pushes the connector out of the outlet through the slider.

7. The portable fan of claim 4, wherein, The slider has an integrally formed body and a stop portion. The elastic element is connected to the body. The pop-out assembly includes a mounting box that is fixed relative to the position of the shell assembly, and a pawl movably disposed in the mounting box. During the process of the connector switching from the second position to the first position, the connector drives the slider to move within the shell assembly and causes the stop portion to pass over the pawl. At the first position, the pawl locks with the stop portion. The pawl can be driven to open so that the elastic element drives the stop portion to disengage from the pawl, and drives the slider to pop the connector out of the shell assembly.

8. The portable fan of claim 1, wherein, The portable fan includes a decorative ring that passes through the cable outlet and is confined within the housing assembly. The decorative ring has a through hole for the cable to pass through, the width of which is smaller than the width of the connector.

9. The portable fan of claim 8, wherein, The decorative ring is in the shape of an open loop.

10. The portable fan according to claim 1, characterized in that, The housing assembly has a recessed groove communicating with the outlet, the outlet being located at the bottom of the recessed groove, and the cable being bendable so that the connector is confined within the recessed groove.

11. The portable fan according to claim 10, characterized in that, The portable fan includes a magnetic suction component connected to the housing assembly and positioned corresponding to the bottom of the sink. The connector has a mating part for magnetically engaging with the magnetic suction component to attach the connector to the bottom of the sink.

12. The portable fan according to claim 10, characterized in that, The wall of the settling tank has a retaining part for locking and limiting the mating joint within the settling tank.

13. The portable fan according to any one of claims 1-12, characterized in that, The portable fan includes a circuit board disposed within the housing assembly, and the telescopic cable module includes a cover disposed within the housing assembly. The fan, the power module, and the cable are electrically connected to the circuit board, the cover and the circuit board are fixed in position relative to each other, and the cable is telescopically disposed within the cover.

14. The portable fan according to claim 13, characterized in that, The portable fan includes a limiting member that is movably fitted to the housing assembly or the cover, the limiting member having an unlock position and a stop position, wherein in the unlock position the cable can be pulled out or retracted into the cover; and in the stop position the limiting member restricts the movement of the cable relative to the housing assembly.

15. The portable fan according to any one of claims 1-12, characterized in that, The housing assembly includes an air outlet and a grip portion connected to the air outlet. The air outlet has the air vent, the fan is disposed in the air outlet, the power module and the telescopic cable module are disposed in the grip portion, and one of the air outlet and the grip portion has the cable outlet.

16. The portable fan according to any one of claims 1-12, characterized in that, The portable fan includes a wearing part connected to the shell assembly for wearing on a user's body.

17. The portable fan according to any one of claims 1-12, characterized in that, The shell assembly forms a space for wearing on the user's body.

18. A portable fan, characterized in that, include: A housing assembly includes a first housing and a second housing connected to the first housing, wherein the first housing and the second housing together form a cable outlet. A fan is disposed on the housing assembly, and the housing assembly has an air outlet for the fan to discharge air. A power module is disposed in the housing assembly and is used to supply power to the fan; as well as A telescopic cable module is disposed in the housing assembly and includes a cable body and a connector connected to one end of the cable body. The width of the connector is greater than the width of the outlet. The cable body can retract into the outlet to be housed in the housing assembly, or extend out of the housing assembly to connect the connector to an external electronic device, and supply power to the external electronic device through the power module.

19. The portable fan according to claim 18, characterized in that, The first housing has a first notch, and the second housing has a second notch. The first notch and the second notch are joined together to form the outlet.

20. The portable fan according to claim 18, characterized in that, The first housing and the second housing together form a sinkhole that communicates with the outlet. The outlet is located at the bottom of the sinkhole. The cable can be bent so that the connector is confined within the sinkhole.

21. The portable fan according to claim 20, characterized in that, The portable fan includes a magnetic suction element connected to at least one of the first housing and the second housing and disposed corresponding to the bottom of the sink. The connector has a mating part for magnetically engaging with the magnetic suction element to attach the connector to the bottom of the sink.

22. The portable fan according to claim 20, characterized in that, The wall of the settling tank has a retaining part for locking and limiting the mating joint within the settling tank.

23. The portable fan according to any one of claims 18-22, characterized in that, The portable fan includes a circuit board disposed within the housing assembly, and the telescopic cable module includes a cover disposed within the housing assembly. The fan, the power module, and the cable are electrically connected to the circuit board, the cover and the circuit board are fixed in position relative to each other, and the cable is telescopically disposed within the cover.

24. The portable fan according to claim 23, characterized in that, The portable fan includes a limiting member that is movably fitted to the housing assembly or the cover, the limiting member having an unlock position and a stop position, wherein in the unlock position the cable can be pulled out or retracted into the cover; and in the stop position the limiting member restricts the movement of the cable relative to the housing assembly.

25. The portable fan according to any one of claims 18-22, characterized in that, The housing assembly includes an air outlet and a grip portion connected to the air outlet. The air outlet has the air vent, the fan is disposed in the air outlet, the power module and the telescopic cable module are disposed in the grip portion, and one of the air outlet and the grip portion has the cable outlet.

26. The portable fan according to any one of claims 18-22, characterized in that, The portable fan includes a wearing part connected to the shell assembly for wearing on a user's body.

27. The portable fan according to any one of claims 18-22, characterized in that, The shell assembly forms a space for wearing on the user's body.

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