Portable wireless electric fan

Abstract

The utility model relates to the technical field of electric fans, in particular to a portable wireless electric fan which comprises an upper shell, a lower shell is arranged at the bottom of the upper shell, a battery pack is fixedly connected in the lower shell, a lampshade shell is arranged at the top of the upper shell, and a fan blade center seat is arranged on the surface of the lampshade shell. The surface of the fan blade center base is movably connected with detachable fan blades. Power is supplied through the battery pack, a user can use the fan outdoors, the designed larger fan blades can generate larger air volume, meanwhile, the detachable fan blades enable the containing size to be very small, and the USB output and the wireless charging coil on the battery pack can support wired and wireless charging of digital products. Various vehicle-mounted electric appliances using the cigarette lighter interface can be supplied with power through DC output, so that the vehicle-mounted electric appliances can be separated from an automobile to be used, the use convenience of a user is greatly improved, and the application scene is expanded.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric fans, and in particular relates to a portable wireless fan. Background Art

[0002] Electric fan is also called fan or blower. It is a household appliance that uses an electric motor to drive the blades to rotate to accelerate the circulation of air. It is mainly used for cooling and circulating air. It is widely used in homes, classrooms, offices, outdoors, shops, hospitals, hotels and other places.

[0003] The existing electric fans are not convenient for outdoor use and adjustment, and are not convenient for storage and carrying, and have great limitations. Therefore, we propose a portable wireless fan. Utility Model Content

[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide a portable wireless fan to solve the problems mentioned in the above background technology that the existing electric fans are inconvenient for outdoor use and adjustment, inconvenient for storage and carrying, and have great limitations.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable wireless fan, comprising an upper shell, the bottom of the upper shell is fixedly connected to a bottom cover, the bottom cover is provided with a bottom cover rotating buckle, the bottom of the upper shell is provided with an input contact, the surface of the upper shell is provided with a nut interface, the surface of the upper shell is provided with an input interface, the bottom of the upper shell is provided with a lower shell, the top of the lower shell is provided with an output contact, the top of the lower shell is fixedly connected to a shell top cover, the surface of the shell top cover is provided with a top cover rotating buckle, the interior of the lower shell is fixedly connected to a battery pack, the surface of the battery pack is fixedly connected to a battery circuit board, the surface of the battery circuit board is fixedly connected to a wireless charging coil, and the battery circuit The surface of the board is provided with a DC output, the surface of the battery circuit board is provided with a type-C input, the surface of the battery circuit board is provided with a USB output, the surface of the battery circuit board is fixedly connected with a power indicator light, the surface of the battery circuit board is fixedly connected with a power switch, the top of the upper shell is provided with a lampshade shell, the surface of the lampshade shell is provided with a fan switch, the surface of the lampshade shell is provided with an LED light switch, the surface of the lampshade shell is provided with a lampshade shaft, the inside of the lampshade shell is fixedly connected with a fan circuit board, the surface of the lampshade shell is movably connected with a lampshade back cover, the inside of the lampshade back cover is fixedly connected with an LED lamp panel, the inside of the lampshade back cover is fixedly connected with a counterweight, and the surface of the lampshade back cover is provided with a A lampshade back cover shaft is arranged, a motor mounting seat is fixedly connected to the inside of the lampshade shell, a bearing mounting hole is provided on the surface of the motor mounting seat, a support rod mounting interface 2 is provided on the surface of the lampshade shell, a shaft pressure cover 1 is fixedly connected to the surface of one end of the lampshade back cover shaft and the lampshade shaft, a shaft pressure cover 2 is fixedly connected to the surface of the other end of the lampshade back cover shaft and the lampshade shaft, a tightening nut is provided on the surface of the shaft pressure cover 2, a fan blade center seat is provided on the surface of the lampshade shell, a center seat limiting groove is provided on the inner wall of the fan blade center seat, a center seat buckle is provided on the inner wall of the fan blade center seat, a magnetic ring clamp is provided on the inner wall of the fan blade center seat, and a center seat fan blade clamp is provided on the outer surface of the fan blade center seat The surface of the fan blade center seat is movably connected with a detachable fan blade, the surface of the detachable fan blade is provided with a fan blade mounting interface, the surface of the fan blade mounting interface is provided with a mounting interface lock buckle, the surface of the lampshade shell is plugged with a protective cover support rod, the bottom of the protective cover support rod is provided with a support rod mounting interface 1, the top of the protective cover support rod is provided with a mounting shaft groove 2, the top of the protective cover support rod is provided with a mounting shaft groove 1, the mounting shaft groove 2 is movably connected with a rotating shaft 2, the surface of the rotating shaft 2 is fixedly connected with a protective blade 2, the surface of the protective blade 2 is provided with a buckle groove 2, the buckle groove 1 is plugged in the buckle groove 2, the surface of the buckle groove 1 is provided with a barb, and the surface of the buckle groove 1 is fixedly connected with a protective blade 1,The surface of the protective blade 1 is fixedly connected with a rotating shaft 1, the inner wall of the motor mounting seat is fixedly connected with an oil-containing bearing, the surface of the motor mounting seat is fixedly connected with a motor, the inside of the oil-containing bearing is plugged with a fan blade rotating shaft, the surface of the fan blade rotating shaft is provided with a rotating shaft slot, and the inside of the fan blade center seat is plugged with a magnetic ring.

[0006] Preferably, the fan blade mounting interface can be inserted into the center seat limiting groove through the center seat fan blade slot, and the mounting interface lock is fastened with the center seat buckle.

[0007] Preferably, a connecting rod is provided inside the fan blade center seat, one end of the fan blade rotating shaft is fixedly connected to the connecting rod, the other end of the fan blade rotating shaft is inserted into the oil-containing bearing, and a retaining spring is provided at the rotating shaft slot to prevent the fan blade rotating shaft from detaching from the bearing, and the motor, the magnetic ring and the fan blade rotating shaft constitute a brushless motor.

[0008] Preferably, the input contacts, the fan switch, the LED light switch, the LED light panel and the fan circuit board are all electrically connected, the output contacts, the battery pack, the battery circuit board, the wireless charging coil, the DC output, the type-C input, the USB output, the power indicator light and the power switch are all electrically connected, and the output end of the fan circuit board is electrically connected to the input end of the motor.

[0009] Preferably, the lampshade back cover shaft and the lampshade shaft are arranged in the semicircular inner diameters on both sides of the top of the lampshade shell, and the shaft pressure cover one and the shaft pressure cover two are covered on the lampshade back cover shaft and the lampshade shaft surface. When the lampshade shell rotates, it can drive the fan blade center seat and detachable fan blades and other components thereon to rotate.

[0010] Preferably, the support rod mounting interface 2 is provided with four groups on the surface circumference of the 3, the protective cover support rod is provided with four groups, the protective cover support rod is inserted into the support rod mounting interface 2 opened on the surface of the lampshade shell through the support rod mounting interface 1 provided at the bottom thereof, the protective blade 1 and the protective blade 2 are both provided with four groups, the rotating shaft 1 can be inserted into the mounting shaft groove 1 and can rotate, the rotating shaft 2 can be inserted into the mounting shaft groove 2 and can rotate, the buckle groove 1 can be fixed in the buckle groove 2 by means of a barb, and the four groups of protective blades 2 and the four groups of protective blades 1 are interconnected to form a circular structure.

[0011] Preferably, when the battery pack is low on power, the fan can be powered directly through the input interface.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This portable wireless fan is powered by a battery pack, so that users can use the fan in places where it is inconvenient to get electricity outdoors. Compared with a household 220-volt electric fan, it is not restricted by electricity. Compared with some wireless handheld fans with a very small storage volume, since we have designed larger fan blades, it can generate a larger air volume. At the same time, the detachable fan blade design can obtain a very small storage volume.

[0014] 2. The USB output and wireless charging coil module on the power module of this portable wireless fan can support wired and wireless charging of digital products. In addition, the DC output is increased. Through the adapter cable, various vehicle-mounted electrical appliances using the cigarette lighter interface can be powered, so that the vehicle-mounted electrical appliances can be used outside the car, which greatly increases the convenience of users in use and expands the application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic back view of the structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the explosion structure of the fan blade center seat and the detachable fan blade of the utility model;

[0018] Figure 4 It is a partial exploded schematic diagram of the structure of the central seat of the fan blade of the utility model;

[0019] Figure 5 It is a partial structural schematic diagram of the lampshade shell and the lampshade back cover of the utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the rear cover of the lampshade of the utility model;

[0021] Figure 7 It is a partial structural schematic diagram of the upper shell and the lower shell of the utility model;

[0022] Figure 8 It is a partial structural schematic diagram of the protective blade 1 and the protective blade 2 of the utility model;

[0023] Fig. 9 It is a partial structural schematic diagram of the support rod of the protective cover of the utility model;

[0024] Fig.10 It is a schematic diagram of the internal structure of the lower shell of the utility model.

[0025] In the figure: 1. Upper shell; 2. Lower shell; 3. Lampshade shell; 4. Lampshade back cover; 5. Fan blade center seat; 6. Removable fan blade; 7. Protective cover support rod; 8. Bottom cover; 9. Bottom cover rotation buckle; 10. Input contact; 11. Fan switch; 12. LED light switch; 13. Shaft pressure cover 1; 14. Shaft pressure cover 2; 15. Tighten the nut; 17. Nut interface; 18. Input interface; 19. Motor mounting seat; 22. Output contact; 24. Battery pack; 25. Battery circuit board; 26. Wireless charging coil; 27. DC output; 211. Type-C input; 212. USB output; 213. Battery indicator light; 214. Power switch; 30. Lampshade back cover shaft; 31. Lampshade Rotating shaft; 35. Fan circuit board; 36. LED light panel; 37. Counterweight; 38. Bearing mounting hole; 39. Oil-containing bearing; 40. Motor; 41. Magnetic ring; 42. Fan blade rotating shaft; 43. Rotating shaft slot; 50. Housing top cover; 51. Top cover rotation buckle; 52. Center seat limit slot; 53. Center seat buckle; 54. Magnetic ring position; 55. Center seat fan blade slot; 57. Fan blade installation interface; 58. Installation interface lock; 59. Protective blade one; 60. Protective blade two; 61. Support rod installation interface one; 62. Installation shaft slot one; 63. Installation shaft slot two; 64. Rotating shaft two; 65. Plug slot two; 66. Rotating shaft one; 67. Plug slot one; 68. Barb; 69. Support rod installation interface two. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-10 , an embodiment provided by the utility model:

[0028] A portable wireless fan comprises an upper shell 1, characterized in that: a bottom cover 8 is fixedly connected to the bottom of the upper shell 1, a bottom cover rotation buckle 9 is provided on the bottom cover 8, an input contact 10 is provided at the bottom of the upper shell 1, a nut interface 17 is provided on the surface of the upper shell 1, an input interface 18 is provided on the surface of the upper shell 1, a lower shell 2 is provided at the bottom of the upper shell 1, an output contact 22 is provided on the top of the lower shell 2, a shell top cover 50 is fixedly connected to the top of the lower shell 2, a top cover rotation buckle 51 is provided on the surface of the shell top cover 50, a battery pack 24 is fixedly connected to the interior of the lower shell 2, a battery circuit board 25 is fixedly connected to the surface of the battery pack 24, a wireless charging coil 26 is fixedly connected to the surface of the battery circuit board 25, and the battery circuit board 25 is fixedly connected to the surface of the wireless charging coil 26. The surface of the battery circuit board 25 is provided with a DC output 27, the surface of the battery circuit board 25 is provided with a type-C input 211, the surface of the battery circuit board 25 is provided with a USB output 212, the surface of the battery circuit board 25 is fixedly connected with a power indicator light 213, the surface of the battery circuit board 25 is fixedly connected with a power switch 214, the top of the upper shell 1 is provided with a lampshade shell 3, the surface of the lampshade shell 3 is provided with a fan switch 11, the surface of the lampshade shell 3 is provided with an LED light switch 12, the surface of the lampshade shell 3 is provided with a lampshade shaft 31, the inside of the lampshade shell 3 is fixedly connected with a fan circuit board 35, the surface of the lampshade shell 3 is movably connected with a lampshade back cover 4, the inside of the lampshade back cover 4 is fixedly connected with an LED light panel 36, and the inside of the lampshade back cover 4 is fixedly connected. A counterweight block 37 is fixedly connected, a lampshade rear cover rotating shaft 30 is arranged on the surface of the lampshade rear cover 4, a motor mounting seat 19 is fixedly connected to the inside of the lampshade shell 3, a bearing mounting hole 38 is provided on the surface of the motor mounting seat 19, a support rod mounting interface 69 is provided on the surface of the lampshade shell 3, a rotating shaft pressure cover 13 is fixedly connected to one end surface of the lampshade rear cover rotating shaft 30 and the lampshade rotating shaft 31, a rotating shaft pressure cover 2 14 is fixedly connected to the other end surface of the lampshade rear cover rotating shaft 30 and the lampshade rotating shaft 31, a tightening nut 15 is arranged on the surface of the rotating shaft pressure cover 2 14, a fan blade center seat 5 is arranged on the surface of the lampshade shell 3, a center seat limiting groove 52 is provided on the inner wall of the fan blade center seat 5, a center seat buckle 53 is provided on the inner wall of the fan blade center seat 5, and a fan blade center seat 5 is provided with a plurality of screw terminals. 5 is provided with a magnetic ring clamping position 54, the outer surface of the fan blade center seat 5 is provided with a center seat blade clamping groove 55, the surface of the fan blade center seat 5 is movably connected with a detachable fan blade 6, the surface of the detachable fan blade 6 is provided with a fan blade mounting interface 57, the surface of the fan blade mounting interface 57 is provided with a mounting interface lock buckle 58, the surface of the lampshade housing 3 is plugged with a protective cover support rod 7, the bottom of the protective cover support rod 7 is provided with a support rod mounting interface 1 61, the top of the protective cover support rod 7 is provided with a mounting shaft groove 2 63, the top of the protective cover support rod 7 is provided with a mounting shaft groove 1 62, the mounting shaft groove 2 63 is movably connected with a rotating shaft 2 64, the surface of the rotating shaft 2 64 is fixedly connected with a protective blade 2 60, and the surface of the protective blade 2 60 is provided with a buckle groove 2 65,A buckle slot 1 67 is inserted into the buckle slot 2 65, a barb 68 is provided on the surface of the buckle slot 1 67, a protective blade 1 59 is fixedly connected to the surface of the buckle slot 1 67, a rotating shaft 1 66 is fixedly connected to the surface of the protective blade 1 59, an oil-containing bearing 39 is fixedly connected to the inner wall of the motor mounting seat 19, a motor 40 is fixedly connected to the surface of the motor mounting seat 19, a fan blade rotating shaft 42 is inserted inside the oil-containing bearing 39, a rotating shaft slot 43 is provided on the surface of the fan blade rotating shaft 42, a magnetic ring 41 is inserted inside the fan blade center seat 5, and the power is supplied by the battery pack 24, so that the user can use the fan in a place where it is inconvenient to get electricity outdoors. Compared with the 220-volt household electric fan, it is not limited by electricity. Compared with some wireless handheld fans with small storage volume, we designed a larger fan blade, so it can generate a larger air volume. At the same time, the detachable fan blade 6 design can obtain a very small storage volume. The USB output 212 and wireless charging coil 26 modules on the power module can support wired and wireless charging of digital products. In addition, the DC output 27 is added. Through the adapter cable, various car appliances using the cigarette lighter interface can be powered, so that the car appliances can be used without the car, which greatly increases the convenience of users in use and expands the application scenarios.

[0029] Furthermore, the fan blade installation interface 57 can be inserted into the center seat limiting groove 52 through the center seat fan blade slot 55, and the installation interface lock 58 is fastened with the center seat buckle 53 to connect the fan blade center seat 5 and the detachable fan blade 6 as a whole.

[0030] Furthermore, a connecting rod is provided inside the fan blade center seat 5, one end of the fan blade rotating shaft 42 is fixedly connected to the connecting rod, and the other end of the fan blade rotating shaft 42 is inserted into the oil-containing bearing 39. A retaining spring is provided at the rotating shaft slot 43, and the retaining spring prevents the fan blade rotating shaft 42 from detaching from the bearing. The motor 40, the magnetic ring 41 and the fan blade rotating shaft 42 constitute a brushless motor, the magnetic ring 41 is the rotor, and the motor 40 is the stator. A magnetic field rotating around its geometric axis is formed around the stator. This magnetic field drives the permanent magnet on the rotor to rotate, and then drives the fan blade rotating shaft 42 to rotate, thereby driving the fan.

[0031] Furthermore, the input contacts 10, the fan switch 11, the LED light switch 12, the LED light panel 36 and the fan circuit board 35 are all electrically connected, the output contacts 22, the battery pack 24, the battery circuit board 25, the wireless charging coil 26, the DC output 27, the type-C input 211, the USB output 212, the power indicator light 213 and the power switch 214 are all electrically connected, the output end of the fan circuit board 35 is electrically connected to the input end of the motor 40, and after the bottom cover rotating buckle 9 and the top cover rotating buckle 51 are rotated and combined, the circuits between the output contacts 22 and the input contacts 10 are interconnected.

[0032] Furthermore, the lampshade back cover shaft 30 and the lampshade shaft 31 are arranged in the semicircular inner diameters on both sides of the top of the lampshade shell 3, and the shaft pressure cover 1 13 and the shaft pressure cover 2 14 cover the surface of the lampshade back cover shaft 30 and the lampshade shaft 31. When the lampshade shell 3 rotates, it can drive the fan blade center seat 5 and the detachable fan blade 6 and other components thereon to rotate. After the lampshade shell 3 is rotated to the required direction, the direction of the lampshade shell 3 can be fixed by tightening the nut 15 on the surface.

[0033] Furthermore, four groups of support rod mounting interfaces 69 are arranged on the surface circumference of 3, four groups of protective cover support rods 7 are arranged, and the protective cover support rods 7 are inserted into the support rod mounting interface 69 opened on the surface of the lampshade housing 3 through the support rod mounting interface 61 arranged at the bottom thereof. The protective blades 1 59 and the protective blades 2 60 shown are both arranged in four groups, the rotating shaft 1 66 can be inserted into the mounting shaft groove 1 62 and can rotate, the rotating shaft 2 64 can be inserted into the mounting shaft groove 2 63 and can rotate, the buckle groove 1 67 can be inserted and fixed in the buckle groove 2 65 through the barb 68, and the four groups of protective blades 2 60 and the four groups of protective blades 1 59 are interconnected to form a circular structure, so as to protect the detachable fan blades 6.

[0034] Furthermore, when the battery pack 24 is low on power, the fan can be powered directly through the input interface 18, the USB output 212 can power digital products, the wireless charging coil 26 can charge devices that support wireless charging, and the DC output 27 can power some 12V products through the adapter cable. The type-C input 211 is used to charge the battery pack 24 inside the power supply.

[0035] Working principle: After the top cover 50 of the power supply part and the bottom cover 8 of the output part are rotated and combined through the bottom cover rotating buckle 9 and the top cover rotating buckle 51, the output contact 22 and the input contact 10 are electrically connected. After pressing the power switch 214, the battery circuit board 25 is energized, and the power indicator light 213 lights up. At this time, the fan circuit board 35 is energized. Press the fan switch 11 lightly, and the motor 40 on the motor mounting seat 19 electrically connected to the circuit board and installed on the lampshade housing 3 is energized. Through the disclosed brushless motor technology, a bearing mounting hole 38 is provided on the inner side of the motor mounting seat 19, and an oil-containing bearing 39 is installed on the bearing hole. The fan blade center seat 5 is fixed with a magnetic ring 41 through a magnetic ring position 54. A fan blade rotating shaft 42 is also fixed in the center of the fan blade center seat 5. After the fan blade rotating shaft 42 is installed in the center of the oil-containing bearing 39, a retaining spring is added to the shaft slot 43 to prevent the rotating shaft from detaching from the bearing during rotation. The fan blade installation interface 57 is inserted into the center seat limit groove 52 through the center seat fan blade slot 55. After being inserted to the bottom, the installation interface lock 58 will be fastened with the center seat buckle 53, and the fan blade center seat 5 and the detachable fan blade 6 are firmly connected as one. Press the LED light switch 12 lightly, and the LED light panel 36 lights up, and transmits the light source through the lampshade shell 3 to provide night lighting. The fan lampshade shell 3 and the lampshade back cover 4 are respectively provided with a lampshade back cover shaft 30 and a lampshade shaft 31. These two rotating shafts are placed in the semicircular inner diameter on both sides of the top of the upper shell 1, and are covered by the shaft pressure cover 1 13 and the shaft pressure cover 2 14 to prevent the rotating shaft from detaching. In order to facilitate the user to store, when the fan is not in use, the detachable fan blade 6, the protective cover support rod 7, the protective blade 1 59, the protective blade 2 60, etc. can be removed, which can greatly reduce the storage volume of the fan for easy carrying. The nut interface 17 provided on the back of the upper housing 1 can be assembled and used with many tripods on the market, so that the fan can be fixed on the tripod and used as a floor fan.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A portable wireless fan, comprising an upper housing (1), characterized in that: The bottom of the upper shell (1) is fixedly connected to a bottom cover (8), and the bottom cover (8) is provided with a bottom cover rotation buckle (9). The bottom of the upper shell (1) is provided with an input contact (10). The surface of the upper shell (1) is provided with a nut interface (17). The surface of the upper shell (1) is provided with an input interface (18). The bottom of the upper shell (1) is provided with a lower shell (2), and the top of the lower shell (2) is provided with an output contact (22). The top of the lower shell (2) is fixedly connected to a shell top cover (50), and the surface of the shell top cover (50) is provided with a top cover rotation buckle (51). The interior of the lower shell (2) is fixedly connected to a battery pack (24), and the surface of the battery pack (24) is fixedly connected to A battery circuit board (25) is provided, the surface of the battery circuit board (25) is fixedly connected to a wireless charging coil (26), the surface of the battery circuit board (25) is provided with a DC output (27), the surface of the battery circuit board (25) is provided with a type-C input (211), the surface of the battery circuit board (25) is provided with a USB output (212), the surface of the battery circuit board (25) is fixedly connected to a power indicator light (213), the surface of the battery circuit board (25) is fixedly connected to a power switch (214), the top of the upper housing (1) is provided with a lampshade housing (3), the surface of the lampshade housing (3) is provided with a fan switch (11), and the surface of the lampshade housing (3) is provided with an L An ED light switch (12), wherein a lampshade rotating shaft (31) is arranged on the surface of the lampshade shell (3), a fan circuit board (35) is fixedly connected to the interior of the lampshade shell (3), a lampshade rear cover (4) is movably connected to the surface of the lampshade shell (3), an LED light panel (36) is fixedly connected to the interior of the lampshade rear cover (4), a counterweight (37) is fixedly connected to the interior of the lampshade rear cover (4), a lampshade rear cover rotating shaft (30) is arranged on the surface of the lampshade rear cover (4), a motor mounting seat (19) is fixedly connected to the interior of the lampshade shell (3), a bearing mounting hole (38) is provided on the surface of the lampshade shell (3), a support rod mounting interface 2 (69) is provided on the surface of the lampshade shell (3), and The lampshade rear cover rotating shaft (30) and one end surface of the lampshade rotating shaft (31) are fixedly connected with a rotating shaft pressure cover 1 (13); the lampshade rear cover rotating shaft (30) and the other end surface of the lampshade rotating shaft (31) are fixedly connected with a rotating shaft pressure cover 2 (14); the surface of the rotating shaft pressure cover 2 (14) is provided with a tightening nut (15); the surface of the lampshade outer shell (3) is provided with a fan blade center seat (5); the inner wall of the fan blade center seat (5) is provided with a center seat limiting groove (52); the inner wall of the fan blade center seat (5) is provided with a center seat buckle (53); the inner wall of the fan blade center seat (5) is provided with a magnetic ring clamping position (54); the outer surface of the fan blade center seat (5) is provided with a center seat fan blade clamping groove (55);The surface of the fan blade center seat (5) is movably connected with a detachable fan blade (6), the surface of the detachable fan blade (6) is provided with a fan blade mounting interface (57), and the surface of the fan blade mounting interface (57) is provided with a mounting interface lock buckle (58). The surface of the lampshade housing (3) is plugged with a protective cover support rod (7), the bottom of the protective cover support rod (7) is provided with a support rod mounting interface 1 (61), the top of the protective cover support rod (7) is provided with a mounting shaft groove 2 (63), the top of the protective cover support rod (7) is provided with a mounting shaft groove 1 (62), the mounting shaft groove 2 (63) is movably connected with a rotating shaft 2 (64), the surface of the rotating shaft 2 (64) is fixedly connected with a protective blade 2 (60), and the protective blade The surface of the second (60) is provided with a second buckle groove (65), a first buckle groove (67) is inserted into the second buckle groove (65), a barb (68) is provided on the surface of the first buckle groove (67), a protective blade (59) is fixedly connected to the surface of the first buckle groove (67), a rotating shaft (66) is fixedly connected to the surface of the first buckle groove (67), an oil-containing bearing (39) is fixedly connected to the inner wall of the motor mounting seat (19), a motor (40) is fixedly connected to the surface of the motor mounting seat (19), a fan blade rotating shaft (42) is inserted into the inside of the oil-containing bearing (39), a rotating shaft slot (43) is provided on the surface of the fan blade rotating shaft (42), and a magnetic ring (41) is inserted into the inside of the fan blade center seat (5).

2. A portable wireless fan according to claim 1, characterized in that: The fan blade installation interface (57) can be inserted into the center seat limiting groove (52) through the center seat fan blade slot (55), and the installation interface lock buckle (58) is fastened with the center seat buckle (53).

3. A portable wireless fan according to claim 1, characterized in that: A connecting rod is arranged inside the fan blade center seat (5), one end of the fan blade rotating shaft (42) is fixedly connected to the connecting rod, and the other end of the fan blade rotating shaft (42) is inserted into the oil-containing bearing (39). A retaining spring is arranged at the rotating shaft slot (43), and the retaining spring prevents the fan blade rotating shaft (42) from detaching from the bearing. The motor (40), the magnetic ring (41) and the fan blade rotating shaft (42) constitute a brushless motor.

4. A portable wireless fan according to claim 1, characterized in that: The input contact (10), the fan switch (11), the LED light switch (12), the LED light panel (36) and the fan circuit board (35) are all electrically connected; the output contact (22), the battery pack (24), the battery circuit board (25), the wireless charging coil (26), the DC output (27), the type-C input (211), the USB output (212), the power indicator light (213) and the power switch (214) are all electrically connected; and the output end of the fan circuit board (35) is electrically connected to the input end of the motor (40).

5. The portable wireless fan according to claim 1, characterized in that: The lampshade rear cover rotating shaft (30) and the lampshade rotating shaft (31) are arranged in the semicircular inner diameters on both sides of the top of the lampshade shell (3); the rotating shaft pressure cover 1 (13) and the rotating shaft pressure cover 2 (14) cover the surfaces of the lampshade rear cover rotating shaft (30) and the lampshade rotating shaft (31); when the lampshade shell (3) rotates, the fan blade center seat (5) and the detachable fan blade (6) thereon can be driven to rotate.

6. A portable wireless fan according to claim 1, characterized in that: The support rod mounting interface 2 (69) is provided with four groups on the surface circumference of the lamp 3, the protection cover support rod (7) is provided with four groups, the protection cover support rod (7) is inserted into the support rod mounting interface 2 (69) opened on the surface of the lamp cover housing (3) through the support rod mounting interface 1 (61) provided at the bottom thereof, the protection blade 1 (59) and the protection blade 2 (60) are both provided with four groups, the rotating shaft 1 (66) can be inserted into the mounting shaft groove 1 (62) and can rotate, the rotating shaft 2 (64) can be inserted into the mounting shaft groove 2 (63) and can rotate, the buckle groove 1 (67) can be inserted and fixed in the buckle groove 2 (65) through the barb (68), and the four groups of protection blades 2 (60) and the four groups of protection blades 1 (59) are interconnected to form a circular structure.

7. A portable wireless fan according to claim 1, characterized in that: When the battery pack (24) is insufficient in power, the fan can be directly powered via the input interface (18).

Images