Handheld fan

Abstract

The utility model relates to a kind of handheld fan, handheld fan includes air outlet subassembly and mounting seat, air outlet subassembly includes shell and the fan of being set to shell, shell has air inlet opening and air outlet opening, fan is used to guide air from air inlet opening into shell and by air outlet opening flow, mounting seat includes installation shell and power module, power module is set to installation shell, and power supply fan power supply.The one of shell and installation shell is equipped with receiving groove, the other is equipped with boss, shell and installation shell are rotationally connected by boss to switch between swing head state and buckling state.The shell and installation shell of the above-mentioned handheld fan are rotationally connected by boss to realize the swing function of air outlet subassembly.Handheld fan is in buckling state, boss can be received in receiving groove, so that the surface of the fuselage of handheld fan has no obvious boss rotation axis structure, and then the appearance integrity of handheld fan is maintained.

Description

Technical Field

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

[0002] Handheld fans, due to their small size, portability, and mobility, have become commonly used small cooling devices in daily life, both at home and during outings. As consumer demand continues to rise, handheld fans not only need to fulfill basic airflow and cooling functions, but their overall appearance has also become a crucial factor influencing consumer purchasing decisions. However, in existing handheld fans, the components that enable the fan head to oscillate generally protrude from the surface of the device, compromising the overall aesthetic appeal. Utility Model Content

[0003] This utility model provides a handheld fan to solve the above-mentioned problems.

[0004] A handheld fan, comprising: An air outlet assembly includes a housing and a fan disposed on the housing. The housing has an air inlet and an air outlet. The fan is used to guide air into the housing from the air inlet and out from the air outlet. The mounting base includes a mounting shell and a power module. The power module is disposed in the mounting shell and supplies power to the fan. One of the housing and the mounting shell is provided with a storage groove, and the other is provided with a protrusion. The housing and the mounting shell are rotatably connected by the protrusion to switch between a swinging state and a snap-fit ​​state. In the snap-fit ​​state, the angle between the mounting shell and the housing is smaller than the angle between the mounting shell and the housing in the swinging state, and the protrusion is stored in the storage groove in the snap-fit ​​state.

[0005] In one embodiment, when in the engaged state, the housing and the mounting housing cover the protrusion and the receiving groove in the axial direction of the mounting housing.

[0006] In one embodiment, the boss protrudes from the housing, the mounting housing includes a bottom shell and a fixing member connected to the bottom shell near one end of the housing, the fixing member having the storage groove, and the power module being disposed within the bottom shell; the boss matches the shape of the storage groove and is rotatably connected to the fixing member.

[0007] In one embodiment, on the side of the fastener facing the air outlet assembly, the fastener has a recessed area that matches the shape of the housing, and in the fastened state, the recessed area accommodates part of the housing; the receiving groove is formed at the bottom of the recessed area.

[0008] In one embodiment, the end of the fastener near the air inlet has a clearance area, and in the tilting state, the portion of the housing near the air inlet is housed within the clearance area.

[0009] In one embodiment, one of the housing and the mounting housing is provided with a locking block, and the other is provided with a first locking groove, wherein the locking block is engaged with the first locking groove when in the snap-fit ​​state.

[0010] In one embodiment, the locking block is elastically connected to the mounting shell, and in the swinging state, the locking block protrudes from the groove wall of the receiving slot; during the switching between the swinging state and the fastening state of the housing and the mounting shell, the protrusion presses against the locking block to make the locking block extend and retract relative to the mounting shell.

[0011] In one embodiment, the card block is integrally formed on the mounting shell and the card block is made of hard plastic. When the head is tilted, the card block protrudes from the wall of the storage groove.

[0012] In one embodiment, the locking block is connected to the mounting shell and protrudes from the wall of the storage groove when in the swinging state; during the switching between the swinging state and the locking state of the housing and the mounting shell, the protrusion presses the locking block to deform the locking block.

[0013] In one embodiment, the air outlet assembly has a reference direction. When in the snap-fit ​​state, the reference direction, the axial direction of the fan, and the axial direction of the mounting housing are perpendicular to each other. The rotation axes of the housing and the mounting housing are parallel to the reference direction. The pivot portion of the housing and the mounting housing is disposed opposite to the locking block. In the reference direction, the two sides of the protrusion have corresponding second slots. The opposite side walls of the receiving groove are provided with elastic arms. When in the snap-fit ​​state, the two second slots engage with the two elastic arms.

[0014] In one embodiment, the power module includes a battery, a circuit board, and a telescopic cable module. The fan and the battery are electrically connected to the circuit board, respectively. The telescopic cable module includes a cable that can extend and retract relative to the mounting housing. The cable is electrically connected to the circuit board and can be wound and stored inside the mounting housing. The cable can also be pulled out of the mounting housing to connect to an external electronic device and supply power to the external electronic device.

[0015] The handheld fan described above includes an air outlet assembly and a mounting base. The air outlet assembly includes a housing and a fan mounted on the housing. The housing has an air inlet and an air outlet. The fan guides air into the housing through the air inlet and out through the air outlet. The mounting base includes a mounting shell and a power module. The power module is mounted on the mounting shell and supplies power to the fan. One of the housing and the mounting shell has a storage groove, and the other has a protrusion. The housing and the mounting shell are rotatably connected via the protrusion to switch between an oscillating state and a locked state. In the locked state, the angle between the mounting shells is smaller than the angle between the mounting shells in the oscillating state, and the protrusion is retracted into the storage groove. The housing and the mounting shell of the handheld fan are rotatably connected via the protrusion to realize the oscillation function of the air outlet assembly. When the handheld fan is in the locked state, the protrusion can be retracted into the storage groove, so that there is no obvious protruding shaft structure on the surface of the handheld fan, thus maintaining the overall appearance of the handheld fan. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a handheld fan according to one embodiment; Figure 2 for Figure 1 A schematic diagram showing another perspective of the handheld fan; Figure 3 for Figure 1 The right view of the handheld fan shown; Figure 4 for Figure 1 A schematic diagram showing the air outlet assembly and mounting base of the handheld fan after separation; Figure 5 for Figure 1 An exploded view of the handheld fan shown. Figure 6 for Figure 1 A cross-sectional view of the handheld fan shown; Figure 7 for Figure 5 A schematic diagram of the fastener removal block in the first embodiment of the handheld fan shown; Figure 8 for Figure 5 A schematic diagram of the fixing component of the second embodiment of the handheld fan shown; Figure 9 for Figure 5A schematic diagram of the fixing member in the third embodiment of the handheld fan shown.

[0018] Figure label: 10. Handheld fan; 11. Air outlet assembly; 11a. Plug; 11a1. Second slot; 111. Housing; 1111. Air duct; 1112. Connector; 111a. First slot; 111a. Air inlet; 111b. Air outlet; 112. Fan; 1121. Drive unit; 1122. Fan blade; 12. Mounting base; 12a. Storage slot; 12a1. Elastic arm; 121. Mounting shell; 121a. Locking block; 121a1. Elastic element; 121a2. Locking element; 121a3. Fixed end; 121a4. Free end; 121a5. Protrusion; 121 b. Rotary shaft groove; 1211. Bottom shell; 12111. First shell component; 12112. Second shell component; 12113. First end cap; 12114. Second end cap; 12115. Shell cover; 12116. Mounting cavity; 1211a. Positioning protrusion; 1212. Fixing component; 1212a. Recessed area; 1212b. Clearance area; 12121. First end; 12122. Second end; 12123. Receiving groove; 12124. Limiting opening; 122. Power module; 1221. Battery; 1222. Circuit board; 1223. Telescopic cable module; 12231. Cable. Detailed Implementation

[0019] The following detailed description of preferred embodiments represents the preferred mode for implementing this invention. This description is not intended to be limiting; it is provided to illustrate the general principles of the invention.

[0020] It should be understood that, for ease of understanding of this utility model, the terms "installation," "connection," "coupling," and "installation" in the following description refer to the connection relationships shown in the drawings. For example, "connection" can refer to a permanent connection or a detachable connection. Furthermore, "connection" can also refer to a direct connection or an indirect connection, or a connection via other auxiliary components. Therefore, the above terms should not be construed as limiting the actual connections of the various elements of this utility model.

[0021] It should be understood that the terms "length," "width," "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "upper," "lower," "external," and "internal" refer to the orientation or positioning relationship in the accompanying drawings to facilitate understanding of the present invention, and do not limit the actual position or orientation of the present invention. Therefore, the above terms should not be construed as limiting the actual position of the components of the present invention.

[0022] It should be understood that the terms "first," "second," "an," "a," and "one" in the following description refer to "at least one" or "one or more" in the embodiments. In particular, the term "a" may refer to "one" in one embodiment and "more than one" in another embodiment. Therefore, the above terms should not be construed as limiting the actual number of elements of the present invention.

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] refer to Figure 1 This utility model discloses a handheld fan 10, which is a portable, miniaturized cooling device that can quickly provide localized airflow and cooling for individuals.

[0025] refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 The handheld fan 10 may include an air outlet assembly 11 and a mounting base 12. The air outlet assembly 11 includes a housing 111 and a fan 112 disposed on the housing 111. The housing 111 has an air inlet opening 111a and an air outlet opening 111b. The fan 112 is used to guide air into the housing 111 from the air inlet opening 111a and out through the air outlet opening 111b. The mounting base 12 includes a mounting shell 121 and a power module 122. The power module 122 is disposed on the mounting shell 121 and supplies power to the fan 112. One of the housing 111 and the mounting housing 121 is provided with a receiving groove 12a, and the other is provided with a boss 11a. The housing 111 and the mounting housing 121 are rotatably connected by the boss 11a to switch between an oscillating state and a snap-fit ​​state. In the snap-fit ​​state, the angle between the mounting housing 121 and the housing 111 is smaller than the angle between the mounting housing 121 and the housing 111 in the oscillating state, and the boss 11a is housed in the receiving groove 12a in the snap-fit ​​state. In some embodiments, in the snap-fit ​​state, the housing 111 and the mounting housing 121 cover the boss 11a and the receiving groove 12a in the axial direction of the mounting housing 121, thus better concealing their rotating structures. The housing 111 and the mounting housing 12 of the handheld fan 10 are rotatably connected by the boss 11a to realize the oscillation function of the air outlet assembly 11. When the handheld fan 10 is in the locked state, the protrusion 11a can be stored in the storage slot 12a, so that there is no obvious protruding shaft structure on the surface of the handheld fan 10, thus maintaining the overall appearance of the handheld fan 10.

[0026] refer to Figure 5 and Figure 6 In some embodiments, the fan 112 includes a drive element 1121 and a fan blade 1122 linked to the drive element 1121. The drive element 1121 is connected to the housing 111, and the drive end of the drive element 1121 is connected to the fan blade 1122. In some embodiments, the drive element 1121 can be a combination of a rotor and a stator to reduce the volume of the air outlet assembly 11.

[0027] refer to Figure 1 , Figure 4 and Figure 5 In some embodiments, the power module 122 includes a battery 1221, a circuit board 1222, and a retractable cable module 1223. The fan 112, battery 1221, and retractable cable module 1223 are electrically connected to the circuit board 1222. The circuit board 1222 may integrate the control circuitry of the air outlet assembly 11 and may also include functional components such as a trigger switch (not shown) for turning the handheld fan 10 on and off. The retractable cable module 1223 may include a cable 12231 that is retractable relative to the mounting housing 121. The cable 12231 is electrically connected to the circuit board 1222 and can be wound and stored inside the mounting housing 121. The cable 12231 can also be pulled out of the mounting housing 121 to connect to external electronic devices such as mobile phones, tablets, or other devices that require power and to power these external electronic devices. Of course, in some embodiments, the battery 1221 can also be charged by connecting an external electronic device, such as a power bank, via the cable 12231.

[0028] In some embodiments, the cable 12231 is wound and housed within the mounting housing 121 using a structure such as a torsion spring and a turntable. The turntable is used to wind the cable 12231 and achieve relative rotation with the mounting housing 121, while the torsion spring is used to retract the cable 12231 after it extends out of the mounting housing 121. An auxiliary circuit board may be provided inside the mounting housing 121. The auxiliary circuit board is provided with a conductive ring, and the turntable is provided with conductive contacts. The conductive contacts are electrically connected to the cable 12231, and the auxiliary circuit board is electrically connected to the circuit board 1222. The conductive contact between the conductive contacts and the conductive ring ensures that the cable 12231 is electrically connected to the circuit board 1222 during extension and retraction, thereby enabling the cable 12231 to be connected to external electronic devices to supply power to the external electronic devices or to charge the battery 1221 through the external electronic devices. For example, when the external electronic device is a mobile terminal such as a mobile phone or tablet, the cable 12231 can be connected to the charging port of the mobile terminal, and the battery 1221 can charge the mobile terminal. Users do not need to carry a separate power bank to charge such mobile terminals while using this handheld fan 10, thus improving convenience. For example, when the external device is a small fan or display screen without its own power supply, the cable 12231 can be connected to such electronic devices, and the battery 1221 of the handheld fan 10 can also power the electronic devices. For example, when the external electronic device is a power bank or power adapter, the cable 12231 can be connected to such electronic devices to charge the battery 1221 inside the handheld fan 10, thus avoiding the hassle of an additional charging cable. Charging the battery 1221 of the handheld fan 10 via an external electronic device falls under the field of reverse charging technology, and there are already relatively mature technical solutions, which will not be elaborated upon in this application.

[0029] refer to Figure 4 , Figure 5 and Figure 6 In some embodiments, the housing 111 may have a boss 11a protruding from the housing 111. The mounting housing 121 includes a bottom housing 1211 and a fixing member 1212 connected to the bottom housing 1211 near one end of the housing 111. The fixing member 1212 has a receiving groove 12a, and the power module 122 is disposed within the bottom housing 1211. The boss 11a matches the shape of the receiving groove 12a and is rotatably connected to the fixing member 1212. Specifically, as shown... Figure 5As shown, the bottom shell 1211 may include a first shell 12111, a second shell 12112, a first end cap 12113, a second end cap 12114, and a cover 12115. The first shell 12111 and the second shell 12112 are detachably connected and enclosed to form a mounting cavity 12116, and the power module 122 may be disposed in the mounting cavity 12116. The housing 12115 is fitted onto the outer surface of the connected first housing 12111 and second housing 12112. The first end cap 12113 connects to and covers one end of the connected first housing 12111 and second housing 12112 and abuts against the housing 12115. The second end cap 12114 connects to and covers the other end of the connected first housing 12111 and second housing 12112 and abuts against the housing 12115, so as to hide the first housing 12111, the second housing 12112 and the power module 122 inside, making the appearance of the handheld fan 10 simpler and improving its aesthetics. The fixing member 1212 is connected to the first end cap 12113 and the fixing member 1212 is located on the side of the first end cap 12113 away from the first housing 12111. In other embodiments, the housing 111 may have a storage groove 12a, and the mounting housing 121 may be provided with a protrusion 11a, as long as the swing function of the air outlet assembly 11 can be realized and the protrusion 11a can be accommodated in the storage groove 12a, which will not be elaborated here.

[0030] refer to Figure 5 and Figure 6 In some embodiments, on the side of the fastener 1212 facing the air outlet assembly 11, the fastener 1212 has a recessed area 1212a that matches the shape of the housing 111. In the fastened state, the recessed area 1212a accommodates a portion of the housing 111. A receiving groove 12a is formed at the bottom of the recessed area 1212a. In some embodiments, the end of the fastener 1212 near the air inlet opening 111a has a clearance area 1212b. In the tilting state, the portion of the housing 111 near the air inlet opening 111a is partially accommodated in the clearance area 1212b. Specifically, as... Figure 5As shown, the housing 111 of the air outlet assembly 11 is generally cylindrical, and includes an air duct 1111 and a connector 1112. The air duct 1111 is fixedly connected to the boss 11a via the connector 1112. The fastener 1212 includes a first end 12121 and a second end 12122 disposed opposite to each other, a recessed area 1212a extending from the first end 12121 to the second end 12122, and the second end 12122 having a clearance area 1212b. In the engaged state, the end of the housing 111 of the air outlet assembly 11 near the air outlet opening 111b is accommodated in the recessed area 1212a and can abut against the first end 12121. In the oscillating state, the housing 111 of the air outlet assembly 11 can rotate relative to the fixing member 1212, causing the end of the housing 111 near the air outlet opening 111b to disengage from the first end 12121 and swing away from the first end 12121 until the end of the housing 111 near the air inlet opening 111a abuts against the second end 12122, thereby limiting the rotation range of the air outlet assembly 11. The rotational connection between the boss 11a and the fixing member 1212 can have suitable damping, that is, a damping shaft structure can be adopted, so that after the boss 11a rotates relative to the fixing member 1212, it can be positioned immediately, thereby facilitating the user to adjust the angle of the air outlet assembly 11 relative to the mounting base 12.

[0031] refer to Figure 5 , Figure 6 and Figure 7 In some embodiments, one of the housing 111 and the mounting housing 121 is provided with a locking block 121a, and the other is provided with a first locking groove 111a. In the fastened state, the locking block 121a engages with the first locking groove 111a. For example, the fixing member 1212 of the mounting housing 121 is provided with a locking block 121a, and the protrusion 11a of the housing 111 has a first locking groove 111a. The fixing member 1212 engages with the first locking groove 111a of the protrusion 11a via the locking block 121a, thus limiting the air outlet assembly 11 to the mounting base 12 and preventing user movement from easily switching the air outlet assembly 11 from the fastened state to the oscillating state. In other embodiments, the fixing member 1212 of the mounting housing 121 has a first locking groove 111a, and the protrusion 11a of the housing 111 is provided with a locking block 121a that matches the first locking groove 111a, which can also achieve the same function.

[0032] Specifically, such as Figure 7As shown, taking the mounting shell 1212 with a locking block 121a and the protrusion 11a of the shell 111 having a first locking groove 111a as an example, the mounting shell 1212 has a receiving groove 12123 and a limiting opening 12124 communicating with the receiving groove 12123 and the storage groove 12a. The locking block 121a is disposed in the receiving groove 12123 and protrudes from the limiting opening 12124 into the storage groove 12a, for engaging with the first locking groove 111a of the protrusion 11a. The width of the limiting opening 12124 can be less than the maximum width of the locking block 121a to prevent the locking block 121a from coming out of the limiting opening 12124. In this embodiment, the locking block 121a can be made of rigid plastic and is movably disposed in the receiving groove 12123. For example, the plastic hardness is greater than Shore 70HD. During the process of the air outlet assembly 11 switching from the oscillating state to the snap-fit ​​state, the rigid plastic locking block 121a is squeezed by the protrusion 11a and enters the first locking groove 111a, thereby realizing the engagement of the locking block 121a and the protrusion 11a.

[0033] Furthermore, the first end cap 12113 may be provided with a positioning protrusion 1211a on the side facing the fixing member 1212, which cooperates with the receiving groove 12123. When the fixing member 1212 is installed on the first end cap 12113, the positioning protrusion 1211a abuts against the side of the locking block 121a facing the first end cap 12113, so as to hold the locking block 121a in the receiving groove 12123, further preventing the locking block 121a from disengaging from the receiving groove 12123.

[0034] refer to Figure 8In other embodiments, the locking block 121a is elastically connected to the mounting shell 121, and in the swinging state, the locking block 121a protrudes from the groove wall of the receiving groove 12a. During the switching between the swinging state and the locking state of the shell 111 and the mounting shell 121, the protrusion 11a presses against the locking block 121a to cause the locking block 121a to extend and retract relative to the mounting shell 121. Specifically, the locking block 121a includes an elastic element 121a1 and a locking element 121a2, and the elastic element 121a1 can be a spring or an elastic post. Taking a spring as an example, the elastic element 121a1 and the engaging element 121a2 are disposed in the receiving groove 12123. One end of the elastic element 121a1 abuts against the groove wall of the receiving groove 12123, and the other end is sleeved on one end of the engaging element 121a2. The other end of the engaging element 121a2 protrudes from the fixing element 1212 through the limiting opening 12124 and is used to engage with the first slot 111a of the boss 11a. Furthermore, the first end cap 12113 is provided with a positioning protrusion 1211a on the side facing the fixing member 1212, which cooperates with the receiving groove 12123. When the fixing member 1212 is installed on the first end cap 12113, the positioning protrusion 1211a is used to abut against the engaging member 121a2 of the locking block 121a, so as to limit the elastic member 1212a1 and the engaging member 121a2 within the receiving groove 12123 and prevent the elastic member 1212a1 and the engaging member 121a2 from disengaging from the receiving groove 12123.

[0035] refer to Figure 9 In other embodiments, the locking block 121a is integrally formed into the mounting shell 121 and is a hard plastic part (e.g., plastic with a hardness greater than Shore hardness 70HD). In the swinging state, the locking block 121a protrudes from the groove wall of the receiving slot 12a. Specifically, as... Figure 9As shown, the locking block 121a is integrally formed on the fixing member 1212. The locking block 121a may include a fixed end 121a3, a free end 121a4, and a protrusion 121a5 disposed between the fixed end 121a3 and the free end 121a4. The protrusion 121a5 is located on the side of the locking block 121a facing the boss 11a. The fixed end 121a3, the free end 121a4 and the protrusion 121a5 are integrally formed, and the fixed end 121a3 is fixedly connected to the mounting shell 121, so that the locking block 121a has a cantilever beam structure. When the housing 111 and the mounting base 12 switch between a snap-fit ​​state and a swing-head state, the protrusion 11a presses against the protrusion 121a5 of the locking block 121a. Due to the elastic deformation of the fixed end 121a3 or the elastic deformation of the contact area, the locking block 121a swings relative to the protrusion 11a, allowing the protrusion 121a5 to disengage from or enter the first slot 111a, thereby achieving the switching between the snap-fit ​​state and the swing-head state of the housing 111 and the mounting base 12. In this embodiment, the protrusion 121a5 can be covered with soft rubber, for example, soft rubber with a hardness less than Shore 60HD, to achieve elastic contact between the locking block 121a and the protrusion 11a during the switching between the snap-fit ​​state and the swing-head state, reducing wear at the contact area. Of course, the entire protrusion 121a5 can be replaced with soft rubber.

[0036] In other embodiments, the locking block 121a is connected to the mounting housing 121 and protrudes from the wall of the receiving groove 12a when in the swinging state. During the switching between the swinging state and the fastening state of the housing 111 and the mounting housing 121, the protrusion 11a presses against the locking block 121a to deform the locking block 121a. In this embodiment, the locking block 121a may be made of a soft rubber material and connected to the fastener 1212, for example, the hardness of the soft rubber is less than Shore 60HD. During the switching between the swinging state and the fastening state, the locking block 121a disengages from or enters the receiving groove 12123 of the protrusion 11a.

[0037] refer to Figure 5 and Figure 6 In some embodiments, the air outlet assembly 11 has a reference direction. In the engaged state, the reference direction, the axial direction of the fan 112, and the axial direction of the mounting housing 121 are perpendicular to each other. The rotation axes of the housing 111 and the mounting housing 121 are parallel to the reference direction. The pivot portion of the housing 111 and the mounting housing 121 is positioned opposite to the locking block 121a. The fixing member 1212 and the first end cover 12113 form a pivot groove 121b. The pivot portion of the mounting housing 121 is accommodated and confined within the pivot groove 121b, allowing the housing 111 to rotate relative to the mounting housing 121.

[0038] refer to Figure 5 and Figure 7In some embodiments, in the reference direction, the two sides of the boss 11a have corresponding second slots 11a1, and the opposite side walls of the receiving groove 12a are provided with corresponding elastic arms 12a1. In the snap-fit ​​state, the two second slots 11a1 engage with the two elastic arms 12a1. When the housing 111 and the mounting housing 121 are in the snap-fit ​​state, the second slots 11a1 cooperate with the elastic arms 12a1, so that the boss 11a of the air outlet assembly 11 is more stably confined within the receiving groove 12a.

[0039] 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.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A handheld fan, characterized in that, include: An air outlet assembly includes a housing and a fan disposed on the housing. The housing has an air inlet and an air outlet. The fan is used to guide air into the housing from the air inlet and out from the air outlet. The mounting base includes a mounting shell and a power module. The power module is disposed in the mounting shell and supplies power to the fan. One of the housing and the mounting shell is provided with a storage groove, and the other is provided with a protrusion. The housing and the mounting shell are rotatably connected by the protrusion to switch between a swinging state and a snap-fit ​​state. In the snap-fit ​​state, the angle between the mounting shell and the housing is smaller than the angle between the mounting shell and the housing in the swinging state, and the protrusion is stored in the storage groove in the snap-fit ​​state.

2. The handheld fan according to claim 1, characterized in that, When engaged, the housing and the mounting shell cover the protrusion and the receiving groove along the axial direction of the mounting shell.

3. The handheld fan according to claim 1, characterized in that, The protrusion protrudes from the housing. The mounting housing includes a bottom shell and a fixing member connected to the bottom shell near one end of the housing. The fixing member has the storage groove. The power module is disposed inside the bottom shell. The protrusion matches the shape of the storage groove and is rotatably connected to the fixing member.

4. The handheld fan according to claim 3, characterized in that, On the side of the fastener facing the air outlet assembly, the fastener has a recessed area that matches the shape of the housing. When fastened, the recessed area accommodates part of the housing. The receiving groove is formed at the bottom of the recessed area.

5. The handheld fan according to claim 4, characterized in that, The end of the fixing member near the air inlet has a clearance area, and when the head is tilted, the part of the housing near the air inlet is housed in the clearance area.

6. The handheld fan according to any one of claims 1-5, characterized in that, One of the housing and the mounting housing is provided with a locking block, and the other is provided with a first locking groove. When the housing is engaged, the locking block is engaged with the first locking groove.

7. The handheld fan according to claim 6, characterized in that, The locking block is elastically connected to the mounting shell. In the swinging state, the locking block protrudes from the groove wall of the storage slot. During the switching between the swinging state and the fastening state of the housing and the mounting shell, the protrusion presses against the locking block to make the locking block extend and retract relative to the mounting shell.

8. The handheld fan according to claim 6, characterized in that, The card block is integrally formed on the mounting shell and is made of hard plastic. When the head is tilted, the card block protrudes from the wall of the storage slot.

9. The handheld fan according to claim 6, characterized in that, The locking block is connected to the mounting shell and protrudes from the groove wall of the storage slot when in the swinging state; during the switching between the swinging state and the fastening state of the shell and the mounting shell, the protrusion squeezes the locking block to deform the locking block.

10. The handheld fan according to claim 6, characterized in that, The air outlet assembly has a reference direction. In the snap-fit ​​state, the reference direction, the axial direction of the fan, and the axial direction of the mounting housing are perpendicular to each other. The rotation axes of the housing and the mounting housing are parallel to the reference direction. The rotation axis of the housing and the mounting housing is opposite to the locking block. In the reference direction, the two sides of the protrusion have corresponding second slots. The opposite sides of the storage groove are provided with elastic arms. In the snap-fit ​​state, the two second slots engage with the two elastic arms.

11. The handheld fan according to any one of claims 1-5, characterized in that, The power module includes a battery, a circuit board, and a telescopic cable module. The fan and the battery are electrically connected to the circuit board. The telescopic cable module includes a cable that can extend and retract relative to the mounting housing. The cable is electrically connected to the circuit board and can be wound and stored inside the mounting housing. The cable can also be pulled out of the mounting housing to connect to an external electronic device and supply power to the external electronic device.

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