Wireless hair dryer

Abstract

The application provides a wireless hair dryer, which comprises a wind tube, a handle connected to the wind tube, a charging battery assembly, a fan assembly and a main control board, the wind tube is provided with an air outlet channel, the handle is provided with an air inlet channel communicated with the air outlet channel, the charging battery assembly comprises at least one charging battery arranged in the air outlet channel of the wind tube, the fan assembly comprises a motor arranged in the handle and a fan blade connected to the motor, the main control board is electrically connected to the charging battery and the motor, the charging battery supplies power to the motor and the main control board, the main control board controls the motor to drive the fan blade to rotate, so that the airflow enters the air inlet channel and is discharged from the wind tube through the air outlet channel. The wireless hair dryer does not need to be connected to a mains socket by using a power cord, and the power cord cannot be wound around arms or other objects; in addition, since the wireless hair dryer is provided with the charging battery, the user can use it in a scene without a mains socket, such as outdoors, and the use scene is wide.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hair dryers, in particular to a wireless hair dryer. BACKGROUND

[0002] The conventional wired hair dryer on the market is prone to winding around arms or other objects during daily use, which is inconvenient to use. In addition, the wired hair dryer must be plugged into a power socket when in use, which limits the use of the wired hair dryer to indoor use only, and the wired hair dryer cannot be used when the power is off. SUMMARY

[0003] The present application aims to provide a wireless hair dryer that is convenient to use.

[0004] To solve the above technical problems, the present application provides a wireless hair dryer, which comprises a barrel, a handle connected to the barrel, a rechargeable battery assembly, a fan assembly, and a main control board. The barrel is provided with an air outlet channel, the handle is provided with an air inlet channel that communicates with the air outlet channel, the rechargeable battery assembly comprises at least one rechargeable battery arranged in the air outlet channel of the barrel, the fan assembly comprises a motor arranged in the handle and a fan blade connected to the motor, and the main control board is electrically connected to the rechargeable battery and the motor. The rechargeable battery supplies power to the motor and the main control board, and the main control board controls the motor to drive the fan blade to rotate, so that the airflow enters the air inlet channel and is discharged from the barrel through the air outlet channel.

[0005] The rechargeable battery of the wireless hair dryer can supply power to the motor and the main control board. During use, the main control board controls the motor to drive the fan blade to rotate to form an airflow that enters the hair dryer from the air inlet channel and is discharged from the barrel through the air outlet channel for the user to use. Therefore, the wireless hair dryer does not need to be connected to a power socket using a power cord, and there is no situation of the power cord winding around arms or other objects. In addition, since the wireless hair dryer is provided with a rechargeable battery, the user can use it in outdoor or other scenarios without a power socket, and the use scenario is wide. Moreover, the wireless hair dryer can be used when the power is off, that is, the wireless hair dryer is not affected by the power, which is convenient to use and improves the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0006] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0007] Figure 1 is a perspective structural schematic diagram of a wireless hair dryer provided by one of the embodiments of the present application.

[0008] Figure 2 is Figure 1 a perspective view of the electric hair dryer of the wireless hair dryer of

[0009] Figure 3 is Figure 1 a perspective view of the electric hair dryer of the wireless hair dryer of

[0010] Figure 4 is Figure 3 a perspective view of the handle of the electric hair dryer of

[0011] Figure 5 is Figure 4 a perspective view of the electric hair dryer of

[0012] Figure 6 is Figure 4 a perspective view of the handle of the electric hair dryer of

[0013] Figure 7 is Figure 6 a perspective view of the electric hair dryer of

[0014] Figure 8 is Figure 4 a perspective view of the electric hair dryer of

[0015] Figure 9 is Figure 8 a perspective view of the electric hair dryer of

[0016] Figure 10 is Figure 9 a perspective view of the electric hair dryer of

[0017] Figure 11 is Figure 10 a perspective view of the electric hair dryer of

[0018] Figure 12 is Figure 9 a perspective view of the electric hair dryer of

[0019] Figure 13 is Figure 9 a perspective view of the electric hair dryer of

[0020] Figure 14 is Figure 4 a perspective view of the electric hair dryer of

[0021] Figure 15 is Figure 8An exploded view of the three-dimensional structure of the rechargeable battery assembly and the heating module;

[0022] Figure 16 yes Figure 15 A three-dimensional structural diagram of the rechargeable battery assembly and the heat dissipation module from another perspective;

[0023] Figure 17 yes Figure 15 An exploded view of the three-dimensional structure of the rechargeable battery assembly in the diagram;

[0024] Figure 18 yes Figure 17 A three-dimensional structural diagram of the rechargeable battery assembly from another perspective;

[0025] Figure 19 yes Figure 15 A three-dimensional exploded view of the heating module in the middle;

[0026] Figure 20 yes Figure 19 A three-dimensional structural diagram of the heating module from another perspective;

[0027] Figure 21 yes Figure 3 A three-dimensional cross-sectional view of a hair dryer;

[0028] Figure 22 yes Figure 2 An exploded view of the three-dimensional structure of the charging socket in the diagram;

[0029] Figure 23 yes Figure 2 A cross-sectional view of the charging socket in the diagram;

[0030] Figure 24 This is a circuit block diagram of the wireless hair dryer of the present invention;

[0031] Figure 25 yes Figure 1 A diagram illustrating the airflow movement during the use of a hair dryer. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of the embodiments of the present application, it should be understood that the terms "thickness", and the like, indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not imply or indicate that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] Referring to Figures 1 to 9 The present application provides a wireless hair dryer, which comprises an electric hair dryer 100 and a charging socket 400 for charging the electric hair dryer 100. The electric hair dryer 100 comprises a barrel 20, a handle 30 connected to the barrel 20, a charging battery assembly 50, a fan assembly 60, a heating module 80, and a main control board 90 electrically connected to the charging battery assembly 50, the fan assembly 60, and the heating module 80. The barrel 20 is provided with an air outlet passage 201, and the handle 30 is provided with an air inlet passage 301 communicating with the air outlet passage 201. The charging battery assembly 50 comprises at least one charging battery 51 arranged in the barrel 20, a charging connector 52 arranged at the end of the handle 30, and an electric wire 53 connected between the charging battery 51 and the charging connector 52. Preferably, the charging battery assembly 50 comprises a plurality of charging batteries 51 arranged in the air outlet passage 201 of the barrel 20. The fan assembly 60 comprises a motor 64 arranged in the handle 30 and a fan blade 66 connected to the motor 64. The main control board 90 is electrically connected to the charging battery 51 and the motor 64, and the charging battery 51 supplies power to the motor 64 and the main control board 90. The main control board 90 controls the motor 64 to drive the fan blade 66 to rotate, so that the air flow enters the air inlet passage 301 and is discharged from the barrel 20 through the air outlet passage 201. The heating module 80 is arranged in the air outlet passage 201 to provide hot air flow for the user. In this embodiment, the charging battery 51 is a lithium battery.

[0035] The charging battery 51 of the wireless hair dryer provided by the present application can supply power to the motor 64 and the main control board 90. In use, the main control board 90 controls the motor 64 to drive the fan blade 66 to rotate to form an air flow, which enters the electric hair dryer 100 from the air inlet passage 301 and is discharged from the barrel 20 through the air outlet passage 201 for the user to use. Therefore, the electric hair dryer 100 of the present application does not need to be connected to a power socket by using a power cord, and there is no problem of the power cord winding around the arm or other objects. In addition, since the electric hair dryer 100 is provided with the charging battery 51, the user can use the electric hair dryer 100 in a scene without a power socket, such as outdoors, and the use scene is wide. Moreover, the electric hair dryer 100 can be used when the power supply is cut off, that is, the electric hair dryer 100 is not affected by the power supply, which is convenient to use and improves the user experience.

[0036] As Figure 8 - Figure 11As shown, the air duct 20 includes a hollow main shell 21, a front shell 22 located at the front end of the main shell 21, and a rear cover 24 located at the rear end of the main shell 21. An air outlet channel 201 extends through the main shell 21 along its axial direction. In this embodiment, the main shell 21 is generally cylindrical. A guide element 210 is provided at the center of the front end of the main shell 21. Specifically, the guide element 210 is a hemispherical shape recessed towards the air outlet channel 201 along the axial direction of the main shell 21. An air outlet 211 communicating with the air outlet channel 201 is provided around the guide element 210 at the front end of the main shell 21. A retaining ring 212 protrudes from the front end of the main shell 21 along its axial direction around the air outlet 211, and the front shell 22 is fitted onto the retaining ring 212. In this invention, the front end refers to the end of the hair dryer 100 that faces the user during normal use, and the rear end refers to the end of the hair dryer 100 that faces away from the user during normal use.

[0037] The front end of the main housing 21 has several connecting posts 213 protruding forward around the retaining ring 212. Each connecting post 213 has a locking hole along its axial direction and is used to connect the front housing 22 to the main housing 21. The front end of the main housing 21 has several support posts 214 protruding forward into the air outlet channel 201 around the retaining ring 212. Each support post 214 has a connecting hole 2140 along the axial direction of the main housing 21. The support posts 214 are used to connect the rechargeable battery assembly 50 to the main housing 21. In this embodiment, the front end of the main housing 21 has multiple air outlet holes 211, which are evenly spaced at least once around the retaining ring 212. The inner circumferential surface of the air outlet channel 201 near the rear end has several positioning strips 216, which are used to position the rechargeable battery assembly 50; specifically, the positioning strips 216 are arranged once around the circumference of the main housing 21.

[0038] like Figure 8 and Figure 9 As shown, the front shell 22 has a ventilation hole 220 corresponding to the air outlet 211, and a first suction member 221 is provided on the side of the front shell 22 away from the main shell 21. In this embodiment, the first suction member 221 has a ring structure and surrounds the ventilation hole 220. The hair dryer 100 also includes a nozzle 70 detachably installed on the front shell 22. Specifically, the nozzle 70 includes a nozzle housing 71 and a second suction member 73, which is located on the side of the nozzle housing 71 facing the front shell 22. The nozzle housing 71 has an air outlet hole 75 along its axial direction, and the second suction member 73 surrounds the air outlet hole 75. When the nozzle 70 is installed in the air duct 20, the first suction member 221 and the second suction member 73 attract each other, positioning the nozzle 70 in the air duct 20, and the air outlet hole 75 connects to the ventilation hole 220. In this embodiment, both the first adsorption element 221 and the second adsorption element 73 are magnets, and the first adsorption element 221 and the second adsorption element 73 are positioned by being attracted to each other by the conductors of the magnets.

[0039] In other embodiments, the first suction member 221 is a ring of iron and the second suction member 73 is a magnet; or, the first suction member 221 is a magnet and the second suction member 73 is a ring of iron.

[0040] In other embodiments, the first suction member 221 is an electromagnet electrically connected to the rechargeable battery 51, and the second suction member 73 is a magnet or a piece of iron. Specifically, in one embodiment, the first suction member 221 is always electrically connected to the rechargeable battery 51, so that the first suction member 221 remains magnetic, facilitating the attachment of the second suction member 73 to the first suction member 221; in another embodiment, the hair dryer 100 is further provided with a switch for controlling whether the first suction member 221 is electrically connected to the rechargeable battery 51, when the nozzle 70 is needed to be used, the switch is turned on to make the first suction member 221 magnetic, facilitating the attachment of the first suction member 221 to the second suction member 73; when the nozzle 70 is needed to be removed, the switch is turned off to disconnect the electrical connection between the first suction member 221 and the rechargeable battery 51, so that the magnetic property of the first suction member 221 disappears, facilitating the removal of the nozzle 70.

[0041] The rear cover 24 is connectable to the rear end of the main housing 21 to position the rechargeable battery assembly 50 within the main housing 21. Specifically, the rear cover 24 includes a cover plate 241 and a flange 243 protruding from the edge of the cover plate 241, and the side of the cover plate 241 away from the flange 243 is provided with a plurality of countersunk holes 244. The outer peripheral surface of the flange 243 is provided with a positioning groove 246 along the circumferential direction thereof. The rear cover 24 further includes a sealing ring 247 received in the positioning groove 246 and a decorative sheet 248 attached to the cover plate 241 away from the flange 243.

[0042] The electric wire 53 is arranged within the peripheral wall of the handle 30. Specifically, the peripheral wall of the handle 30 is provided with a wire slot 303, and the electric wire 53 is received in the wire slot 303 to avoid occupying the space of the air inlet passage 301 of the handle 30. Therefore, the electric wire 53 does not block the airflow generated by the blower assembly 60, so that the air inlet passage 301 remains unobstructed, thereby making the air pressure of the hair dryer 100 stronger and more concentrated, improving the working efficiency and user experience.

[0043] In the present embodiment, the handle 30 includes a handle body 31 connected to the air duct 21, a handle cover 33 detachably buckled to the handle body 31, and a sleeve 35 sleeved on the handle body 31 and the handle cover 33, and the handle body 31 and the handle cover 33 form a cylindrical body after buckling. The blower assembly 60 is clamped between the handle body 31 and the handle cover 33, and the electric wire 53 is arranged between the sleeve 35 and the handle body 31 and / or the handle cover 33. Specifically, the outer peripheral surface of the handle body 31 is provided with a wire slot 303 extending along the length direction of the handle body 31 from one end to the other end, and the electric wire 53 is received in the wire slot 303, and the sleeve 35 is sleeved on the handle body 31 to position the electric wire 53.

[0044] In other embodiments, the outer circumferential surface of the handle cover 33 can also be provided with a wire slot extending from one end to the opposite end of the handle cover 33, and the wire 53 is accommodated in the wire slot, and the sleeve 35 is sleeved on the handle cover 33 to position the wire 53.

[0045] In other embodiments, the inner circumferential surface of the handle cover 33 is provided with a wire slot extending along the extension direction of the air inlet channel 301, and the wire 53 is clamped in the wire slot.

[0046] In other embodiments, the inner circumferential surface of the handle cover 33 is provided with a wire slot extending along the extension direction of the air inlet channel 301, and the wire 53 is clamped in the wire slot.

[0047] In this embodiment, the radial cross section of the handle body 31 is a semicircular ring, and the inner circumferential surface of the handle body 31 away from one end of the main shell 21 is provided with a positioning groove 312 extending along the circumferential direction of the handle body 31 and penetrating through the two side surfaces of the handle body 31, and the positioning groove 312 is used to position the fan assembly 60. The two side walls of the handle body 31 are respectively provided with a connecting hole 314. The end of the handle body 31 is provided with a tail frame 311, and the tail frame 311 is provided with an air inlet 315 communicating with the air inlet channel 301, i.e. the air inlet 315 is located at the end of the handle body 31 away from the shell 21. The side surface of the tail frame 311 facing the cover 33 is provided with a clamping hole 3110.

[0048] As shown in Figure 7 and Figure 9 The hair dryer 100 further includes a switch module 316 electrically connected to the main control board 90, and the main control board 90 controls the working state of the charging battery 51, the motor 64 and / or the heating module 80 according to the signals received from the switch module 316. Specifically, the inner circumferential surface of the handle body 31 near the shell 21 is provided with a first control switch 3161 and a second control switch 3163, and the first control switch 3161 and the second control switch 3163 are connected to the main control board 90 through wires. The first control switch 3161 is used to control the air volume of the fan assembly 60, i.e. the first control switch 3161 is used to control the power of the motor 64 to adjust the rotating speed of the fan blade 66, thereby realizing the adjustment of the air volume; the second control switch 3163 is used to control whether the heating module 80 is turned on to heat, i.e. the second control switch 3163 is used to control whether the heating module 80 is turned on and adjust the power of the heating module 80, so as to realize the adjustment of the temperature of the airflow. The first control switch 3161 and the second control switch 3163 are respectively driven by the dial key 318 to realize the operation of the first control switch 3161 and the second control switch 3163.

[0049] As shown in Figures 6 to 9As shown, the outer circumferential surface of the handle body 31 is provided with two mutually spaced guide sliding grooves 319 corresponding to the first control switch 3161 and the second control switch 3163, respectively, and two toggle keys 318 are respectively inserted into the corresponding guide sliding grooves 319 to be connected to the first control switch 3161 and the second control switch 3163.

[0050] As shown in Figure 8 - Figure 9 and Figure 12 each toggle key 318 includes a toggle piece 3180, two spaced guide sliding hooks 3182 provided on one side surface of the toggle piece 3180, and an anti-skid strip 3184 provided on the opposite side surface of the toggle piece 3180. The two guide sliding hooks 3182 are respectively inserted into the corresponding two guide sliding grooves 319 of the handle body 31, so that the toggle key 318 is slidingly connected to the handle body 31 along the guide sliding groove 319, and the two toggle keys 318 are respectively connected to the first control switch 3161 and the second control switch 3163. The anti-skid strip 3184 facilitates the user to operate the toggle key 318.

[0051] As shown in Figures 6 to 9 the structure of the handle cover body 33 is similar to that of the handle body 31. Specifically, the radial cross section of the handle cover body 33 is a semicircular ring, and the inner circumferential surface of the handle cover body 33 away from the main shell 21 is provided with a positioning groove 332 extending through the two side surfaces of the handle cover body 33 along the circumferential direction of the handle cover body 33, and the handle cover body 33 is used for positioning the fan assembly 60. The two side walls of the handle cover body 33 are respectively provided with through holes 334. The end of the handle cover body 33 is provided with a tail frame 331, and the tail frame 331 is provided with an air inlet 335 communicating with the air inlet channel 301, i.e. the air inlet 335 is located at the end of the handle cover body 33 away from the shell 21. The side surface of the tail frame 331 facing the handle body 31 is provided with a clamping block 3310. The inner circumferential surface of the handle cover body 33 close to the shell 21 is provided with two abutting pieces 336, and the two abutting pieces 336 are used for abutting the first control switch 3161 and the second control switch 3163. Each abutting piece 336 is parallel to the extension direction of the air inlet channel 301, so as to reduce the obstruction of the abutting piece 336 to the airflow. In its embodiment, the abutting piece 336 can also be omitted, or an abutting pin is used instead of the abutting piece 336, so as to further reduce the obstruction to the airflow.

[0052] The circumferential wall of the sleeve 35 is provided with a guide groove 350 communicating with the inner cavity of the sleeve 35 corresponding to the toggle key 318, and the toggle key 318 can slide in the guide groove 350. The inner circumferential surface of the sleeve 35 away from the main shell 21 is provided with a connecting ring 351, and the connecting ring 351 is provided with a clamping groove 352 along the circumferential direction thereof.

[0053] The handle 30 further comprises a tail cover 36 detachably connected to the end of the handle body 31 and / or the handle cover body 33, the tail cover 36 being provided with air inlet holes 360; when the tail cover 36 is connected to the handle body 31 and / or the handle cover body 33, the air inlet holes 360 are in communication with the air inlets 315, 335. Specifically, the tail cover 36 is of a cylindrical structure, and the peripheral wall of the tail cover 36 is provided with a plurality of strip-shaped air inlet holes 360 arranged along the circumferential direction of the handle 30. Preferably, the air inlet holes 360 are uniformly spaced along the circumferential direction of the handle 30. The end surface of the tail cover 36 facing the handle body 31 is provided with a clamping strip 362 extending along the circumferential direction of the tail cover 36. The end of the tail cover 36 away from the clamping strip 362 is provided with a mounting hole 364 for fixing the charging connector 52.

[0054] Preferably, a detachable filter screen 37 is arranged between the tail cover 36 and the handle body 31 and / or the handle cover body 33. In the present embodiment, the filter screen 37 is of a cylindrical structure, and the filter screen 37 is detachably arranged between the tail cover 36 and the tail frame 311 of the handle body 31 and the tail frame 311 of the handle cover body 33. As shown in Figure 14 , the end of the filter screen 37 is provided with a clamping groove clamped to the tail cover 36 so as to position the filter screen 37 in the tail cover 36.

[0055] Please refer to Figure 7 - Figure 9 and Figure 13 , the fan assembly 60 further comprises an air inlet cylinder 62, a motor 64 and a fan blade 66 connected to the motor 64, the motor 64 and the fan blade 66 being arranged in the air inlet cylinder 62. When the air inlet cylinder 62 is clamped by the handle body 31 and the handle cover body 33, the rotational axis of the fan blade 66 is coaxial with the center line of the air inlet passage 301. The outer peripheral surface of the air inlet cylinder 62 is provided with a plurality of positioning protrusions 67 abutting against the inner peripheral surface of the handle body 31 and the inner peripheral surface of the handle cover body 33 so as to firmly position the fan assembly 60 in the handle 30.

[0056] As shown in Figure 8 - Figure 9 and Figure 15 - Figure 18As shown, the charging battery assembly 50 further comprises a cell holder 55 for mounting a plurality of charging batteries 51, the plurality of charging batteries 51 are positioned in parallel and spaced apart on the cell holder 55, and the plurality of charging batteries 51 are connected in series. Preferably, the plurality of charging batteries 51 are arranged along the circumference of the cell holder 55; further, the plurality of charging batteries 51 are evenly spaced apart along the circumference of the cell holder 55. In the embodiment, the cell holder 55 comprises a connecting plate 550 and a plurality of spaced apart support columns 551 provided on the connecting plate 550, the plurality of support columns 551 correspond to the plurality of support columns 214 of the main housing 21 one by one, and an end portion of each support column 551 is provided with a fixing hole 5510 along the axial direction thereof. A positioning ring 553 is provided between two adjacent support columns 551, and the plurality of charging batteries 51 are positioned in the corresponding positioning rings 553 respectively. Specifically, the connecting plate 550 is a circular plate, and the plurality of support columns 551 are arranged in spaced apart along the circumference of the connecting plate 550, and in the embodiment, the number of support columns 551 is 4, i.e. 4 support columns 551 are arranged in spaced apart along the circumference of the connecting plate 550; the number of charging batteries 51 is 6; and the positioning ring 553 between two adjacent support columns 551 is approximately in the shape of a gourd, and each positioning ring 553 can position two charging batteries 51 which are spaced apart and parallel, i.e. two charging batteries 51 are positioned between two adjacent support columns 551.

[0057] The cell holder 55 is provided with a positioning member 555 for connecting the main control board 90. Specifically, the positioning member 555 is a positioning column extending from the connecting plate 550 along the axial direction parallel to the support columns 551, and an outer peripheral surface of the positioning column is provided with a positioning groove 5551 along the axial direction thereof. The connecting plate 550 is provided with a positioning hole 5501 adjacent to the positioning member 555, and the positioning member 555 and the positioning hole 5501 are used to jointly fix the main control board 90 to the cell holder 55. A middle portion of an end of the cell holder 55 away from the connecting plate 550 is provided with a connecting member 556, and the connecting member 556 is provided with staggered clamping grooves 5562 around the periphery thereof, and the heat generating module 80 is fixed to the cell holder 55 through the connecting member 556 and the clamping grooves 5562. The side of the connecting plate 550 away from the support columns 551 is provided with a plurality of fixing columns 557, and each fixing column 557 is provided with a fixing hole 5571 along the axial direction thereof. The connecting plate 550 is provided with an opening 558 in the inner cavity corresponding to the positioning ring 553, and the side of the connecting plate 550 away from the support columns 551 is provided with a clamping column 559 around the opening 558.

[0058] In other embodiments, one charging battery 51 or more than two charging batteries 51 can also be positioned between each two adjacent support columns 551, i.e. the number can be freely selected as required.

[0059] The charging battery assembly 50 further comprises a plurality of first connecting pieces 54 connected to one end of the plurality of charging batteries 51 and a plurality of second connecting pieces 56 connected to the opposite end of the plurality of charging batteries 51. In the embodiment, each of the first connecting pieces 54 and each of the second connecting pieces 56 is a nickel piece. The plurality of first connecting pieces 54 and the plurality of second connecting pieces 56 connect the plurality of charging batteries 51 in series. Each of the first connecting pieces 54 is provided with a clamping hole 542. The charging battery assembly 50 further comprises a gasket 57 and a protection module 58. The gasket 57 is provided with a through hole 571 in the middle and clamping holes 573 around the periphery. In the embodiment, the protection module 58 is in a sheet structure and is provided with a through hole 581 in the middle, clamping holes 583 around the periphery and two positioning holes 585 on one side. One end of the main control board 90 is provided with a clamping piece 92 and one side of the main control board 90 adjacent to the clamping piece 92 is provided with a plug-in piece 94. In the embodiment, one end of the main control board 90 is provided with two clamping pieces 92 spaced apart. The main control board 90 is connected to the charging battery assembly 50, the fan assembly 60 and the heating module 80 through wires.

[0060] The hair dryer 100 further comprises a battery protection module 96 connected to the main control board 90. The battery protection module 96 is electrically connected to the charging battery 51 and the main control board 90 and is used for protecting the charging battery 51. In the embodiment, the battery protection module 96 is a circuit board electrically connected to the main control board 90. The battery protection module 96 is used for effectively protecting the charging battery 51 in the hair dryer 20, i.e. preventing overcharging, over-discharging, over-current and short-circuit protection of the charging battery 51.

[0061] In other embodiments, the battery protection module 96 can also be arranged at other positions of the hair dryer 20, such as in the battery holder 55. The battery protection module 96 is connected to the main control board 90 through wires.

[0062] In other embodiments, the battery protection module 96 can also be arranged in the charging socket 400.

[0063] In other embodiments, the main control board 90 is provided with a battery protection circuit module, i.e. the battery protection circuit is directly arranged in the main control board 90.

[0064] When the charging battery assembly 50 is assembled, the charging batteries 51 are inserted into the openings 558 of the cell holder 55 respectively, so that each charging battery 51 is inserted into the inner cavity of the corresponding positioning ring 553; the first connecting pieces 54 are clamped on the clamping columns 559 of the connecting plate 550 respectively, that is, each clamping column 559 is clamped in the corresponding clamping hole 542 of the first connecting piece 54; the gasket 57 is attached to the side of the protection module 58 facing the cell holder 55, and then the protection module 58 is positioned on the connecting plate 550, that is, each clamping column 559 passes through the corresponding clamping hole 573 and clamping hole 583, so that the protection module 58 is fixed on the connecting plate 550. The second connecting pieces 56 are connected to the end portions of the charging batteries 51 away from the connecting plate 550. At this time, the charging batteries 51 are fixed on the cell holder 55, and the charging batteries 51 are connected in series. The main control board 90 is installed on the cell holder 55, specifically, the two clamping pieces 92 of the main control board 90 are inserted into the two positioning holes 5501 of the connecting plate 550 and the two positioning holes 585 of the protection module 58 respectively, and the insertion piece 94 of the main control board 90 is clamped in the positioning groove 5551 of the positioning piece 555, so that the main control board 90 is fixed on the cell holder 55. At this time, the main control board 90 is parallel to the axis of the charging battery 51.

[0065] As shown in Figure 15 Figure 16 and Figure 19 Figure 20 As shown in the drawings, the heating module 83 is located at one end of the charging battery assembly 50, specifically, the heating module 83 includes the heating module support 81 connected to the charging battery assembly 50 and the heating module 83 wound on the heating module support 81, and the heating module 83 is electrically connected to the main control board 90. In this embodiment, the heating module 83 is a heating wire electrically connected to the main control board 90. When the wireless hair dryer is in the hot air mode, the main control board 90 controls the charging battery assembly 50 to supply power to the heating module 83, so that the heating module 83 generates heat. Specifically, the heating module support 81 is fixed to the end of the cell holder 55 away from the connecting plate 550. In this embodiment, the heating module support 81 includes two support plates 812 connected in staggered manner and a positioning block 815, each support plate 812 is provided with a plurality of clamping holes 814 on opposite sides thereof, and the clamping holes 814 are arranged along the side edges of the support plate 812. The side of the positioning block 815 facing the heating module support 81 is provided with staggered clamping grooves 817, and the opposite ends of the positioning block 815 are respectively provided with connecting holes 818.

[0066] ​​When the heating module 80 is assembled to the battery holder 55, the heating module 83 is wound on the heating module holder 81, i.e. the heating module 83 is clamped in the clamping hole 814 of the support plate 812. The end of the heating module holder 81 away from the heating module 83 is connected to the battery holder 55, specifically, the support plate 812 is clamped in the clamping groove 5562 of the battery holder 55. The positioning block 815 is connected to the connecting piece 556 of the battery holder 55, specifically, the end of the support plate 812 away from the battery holder 55 is clamped in the clamping groove 817 of the positioning block 815, and two locking members are inserted into the connecting holes 818 of the positioning block 815 and then locked to the connecting piece 556 of the battery holder 55, so that the heating module holder 81 is fixedly connected to the battery holder 55.

[0067] Please refer to Figures 3 to 15 and Figure 21 When the hair dryer 100 is assembled, the combination of the battery assembly 50 and the heating module 80 is placed in the air outlet passage 201 of the main shell 21, so that the plurality of support columns 551 and the plurality of support columns 214 are one-to-one matched, and a plurality of locking members such as rivets are inserted into the connecting holes 2140 of the support columns 214 and locked to the corresponding fixing holes 5510, so that the battery assembly 50 and the heating module 80 are fixed to the main shell 21. At this time, the heating module 80 is close to the air outlet 211 of the main shell 21, the battery assembly 50 and the main control board 90 are located at the end of the air outlet passage 201 away from the air outlet 211, and the battery assembly 50 and the main control board 90 close to the heating module 80 are opposite to the air inlet passage 301, the axial direction of each battery 51 intersects with the extension direction of the air inlet passage 301, preferably, the axial direction of the battery 51 is perpendicular to the extension direction of the air inlet passage 301, and the main control board 90 is parallel to the extension direction of the air inlet passage 301. Therefore, part of the airflow flowing from the air inlet passage 301 to the air outlet passage 201 passes through the heating module 80 after passing through the gaps between the batteries 51 and the outer surface of the main control board 90, and is discharged from the air outlet 211; the other part of the airflow directly passes through the heating module 80 from the air inlet passage 301 and is discharged from the air outlet 211. The sealing ring 247 is sleeved on the positioning groove 246 of the rear cover 24, and the rear cover 24 covers the rear end of the main shell 21 until the flange 243 of the rear cover 24 abuts against the positioning strip 216, and a plurality of locking members are inserted into the countersunk holes 244 of the rear cover 24 and locked to the fixing holes 5571 of the corresponding fixing columns 557 of the battery holder 55, so that the battery assembly 50 and the heating module 8 are firmly fixed in the main shell 21. The front shell 22 is installed at the front end of the main shell 21, specifically, the front shell 22 is sleeved on the clamping ring 212 of the main shell 21, and a plurality of locking members such as rivets are inserted into the locking holes of the corresponding connecting columns 213 to fix the front shell 22 to the main shell 21.

[0068] The fan assembly 60 is installed to the handle 30, in particular, a part of the air inlet cylinder 62 of the fan assembly 60 is accommodated in the positioning groove 312 of the handle body 31, then the handle cover 33 is buckled on the handle body 31, another part of the air inlet cylinder 62 is accommodated in the positioning groove 332 of the handle cover 33, the clamping blocks 3310 of the tail frame 331 are clamped in the clamping holes 3110 of the tail frame 311 respectively, and the plurality of locking members such as screws are inserted into the plurality of through holes 334 of the handle cover 33 and locked in the corresponding connecting holes 314 of the handle body 31, so that the fan assembly 60 is clamped between the handle body 31 and the handle cover 33. At this time, the rotation axis of the fan blade 66 of the fan assembly 60 is collinear with the axis of the handle 30, that is, the center line of the air inlet channel 301 is collinear with the rotation axis of the fan blade 66, and the abutting pieces 336 of the handle cover 33 abut against the first control switch 3161 and the second control switch 3163 respectively. The wire 53 is accommodated in the wire groove 303 of the handle body 31, the sleeve 35 is sleeved on the handle body 31 and the handle cover 33, until the guide groove 350 of the sleeve 35 is opposite to the guide sliding groove 319 of the handle body 31, and the guide sliding hooks 3182 of the two toggle keys 318 are inserted into the corresponding guide sliding grooves 319 and connected to the first control switch 3161 and the second control switch 3163 respectively. The charging connector 52 is installed into the mounting hole 364 of the tail cover 36, and the filter screen 37 is attached to the inner circumferential surface of the tail cover 36. Then the tail cover 36 is connected to the tail end of the sleeve 35, in particular, the tail cover 36 is sleeved on the tail frames 311, 331, and the clamping strip 362 of the tail cover 36 is detachably clamped in the clamping groove 352 of the sleeve 35. At this time, the sleeve 35 is exposed outside the air inlet 315, the air inlet hole 360 of the tail cover 36, the through hole of the filter screen 37 and the air inlet 315 are in communication with each other.

[0069] Optionally, the heating module 80 further comprises a temperature probe electrically connected to the main control board 90, the temperature probe is adjacent to the heating module 83 for measuring the temperature of the hot air flow of the hair dryer 100, that is, the temperature probe is used for measuring the temperature of the hot air flow near the heating module 83. When the main control board 90 detects that the temperature value of the hot air flow is higher than the preset temperature value through the temperature probe, the main control board 90 controls the heating module 83 to stop heating and / or the motor 64 to stop rotating. In the embodiment, the main control board 90 sets the preset temperature value as 80 degrees, when the temperature value detected by the main control board 90 is higher than 80 degrees, the main control board 90 controls the charging battery 51 to stop supplying power to the heating module 83, and at the same time controls the charging battery 51 to stop supplying power to the motor 64, so that the heating module 83 stops heating and the motor 64 stops working; or when the temperature value detected by the main control board 90 is higher than 80 degrees, the main control board 90 first controls the charging battery 51 to stop supplying power to the heating module 83 so that the heating module 83 stops heating, and then controls the charging battery 51 to stop supplying power to the motor 64 so that the motor 64 stops working.

[0070] Optionally, the hair dryer 100 further comprises a display module 105 (as shown in Figure 24 The display module 105 is used to display the power and charging status of the rechargeable battery 51, so as to facilitate the timely observation of the charging condition of the hair dryer 100. The display module 105 can be an LED lamp, a digital tube, or a display screen provided on the housing of the hair dryer 100.

[0071] As shown in Figure 2 and Figure 22 Figure 23 The charging socket 400 comprises a plug-in portion 401 and a charging terminal 433 provided on the plug-in portion 401. The charging connector 52 is electrically connected to the main control board 90. When the handle 30 is inserted into the plug-in portion 401, the charging connector 52 is electrically connected to the charging terminal 433, and the main control board 90 controls the charging socket 400 to charge the rechargeable battery 51.

[0072] Specifically, the charging socket 400 comprises a seat body 410 with an inner cavity and a charging assembly 430 provided in the inner cavity of the seat body 410. The top of the seat body 410 is recessed to form the plug-in portion 401. The charging assembly 430 comprises a circuit board 431, and the charging terminal 433 is electrically connected to the circuit board 431. Preferably, the charging terminal 433 is provided on the circuit board 431. The charging terminal 433 extends through the plug-in portion 401 to the inner cavity of the plug-in portion 401. The circuit board 431 is provided with a transformer which can convert alternating current into direct current for charging the hair dryer 100.

[0073] The seat body 410 comprises an upper shell 412 and a lower shell 414 which can be snap-fit connected. The upper shell 412 comprises a top plate 4120 and a side wall 4122 provided around the top plate 4120. The plug-in portion 401 is recessed from the middle of the top plate 4120 to the inner cavity of the upper shell 412. In this embodiment, the upper shell 412 is generally a circular truncated cone cavity, i.e. the top plate 4120 is a circular plate, and the side wall 4122 is provided around the outer periphery of the top plate 4120. The top plate 4120 and the side wall 4122 form a receiving space 4123, and the charging assembly 430 is accommodated in the receiving space 4123. The plug-in portion 401 extends from the top plate 4120 into the receiving space 4123. Preferably, the radial dimension of the receiving space 4123 gradually increases from the top plate 4120 to the side away from the top plate 4120, i.e. the area of the top plate 4120 is less than the area enclosed by the side of the side wall 4122 away from the top plate 4120, so as to make the seat body 410 more stable.

[0074] As shown in Figure 23 ​As shown, the plug-in part 401 includes a plug-in barrel 4101 connected to the upper shell 412 of the charging socket 40 and a connecting plate 4102 arranged at the bottom of the plug-in barrel 4101, the plug-in barrel 4101 and the connecting plate 4102 enclose a plug-in space 4103 in which the handle 30 can be accommodated. The connecting plate 4102 is provided with a flow guide hole which is communicated to the outside of the charging socket 40, and the flow guide hole is used to drain the liquid such as water mistakenly entering the plug-in barrel 4101 to the outside of the charging socket 40, thereby playing a dredging role to avoid the liquid from contacting the charging terminal 433 and / or the charging connector 52 to cause short circuit and other abnormal conditions such as damage to the wireless hair dryer 100.

[0075] In the embodiment, the plug-in barrel 4101 is a circular barrel which extends into the accommodation space 4123 along the axial direction of the seat body 410 from the middle part of the top plate 4120. The plug-in space 4103 of the plug-in barrel 4101 is a circular hole, and the inner diameter of the plug-in space 4103 is slightly larger than the diameter of the end of the handle 30 to facilitate the end of the handle 30 to be inserted or taken out.

[0076] In other embodiments, the plug-in space 4103 of the plug-in barrel 4101 can also be a rectangular hole, an elliptical hole, a polygonal hole, etc., and the end of the handle 30 is correspondingly provided as a rectangular column, an elliptical column or a polygonal column to facilitate the end of the handle 30 to be inserted or taken out of the plug-in space 4103, so that the charging connector 52 on the handle 30 can keep in contact with the charging terminal 433 of the charging socket 40.

[0077] The middle part of the connecting plate 4102 is provided with a tab 4105 protruding towards the plug-in space 4103, and the charging terminal 433 extends into the plug-in space 4103 after passing through the tab 4101. Specifically, the middle part of the surface of the connecting plate 4102 facing the plug-in space 4103 is protruded to form the tab 4105, and the surface of the tab 4105 facing the plug-in space 4103 is closer to the top plate 4120 than the surface of the connecting plate 4102 facing the plug-in space 4103. The tab 4105 is provided with a plurality of positioning holes, and a plurality of charging terminals 433 are arranged in the plurality of positioning holes, i.e. the charging terminals 433 are arranged on the tab 4105.

[0078] The connecting plate 4102 forms a flow guide groove 4106 around the tab 4105, and the flow guide hole is arranged on the connecting plate 4102 opposite to the flow guide groove 4106. In the embodiment, the flow guide hole is communicated to the outside of the seat body 410 through a flow guide pipe. Specifically, the liquid in the flow guide groove 4106 is drained to the outside of the seat body 410 through the flow guide hole and the flow guide pipe.

[0079] The inner part of the upper shell 412 is provided with a plurality of positioning columns 4124 and a plurality of connecting columns 4125, which are used for positioning the circuit board 431 to the inner cavity of the seat body 410. The lower shell 414 comprises a base plate 4142 which can be buckled to the bottom of the upper shell 412, and the surface of the base plate 4142 facing the upper shell 412 is provided with a plurality of clamping hooks which are used for clamping the bottom wall of the side wall 4122, so as to fixedly connect the upper shell 412 and the lower shell 414. The surface of the base plate 4142 facing the upper shell 412 is provided with a plurality of supporting columns 4143 which correspond to the plurality of positioning columns 4124 of the upper shell 412 in one-to-one manner. The top end surface of each supporting column 4143 is provided with a positioning hole along the axial direction thereof, and when the upper shell 412 is buckled to the lower shell 414, the plurality of positioning columns 4124 are respectively inserted into the positioning holes of the plurality of supporting columns 4143.

[0080] As shown in Figure 2 and Figure 22 - Figure 23 The charging connector 52 comprises a positive electrode sheet 521 and a negative electrode sheet 523, and the charging terminal 433 comprises a positive terminal and a negative terminal, and when the charging socket 400 charges the charging battery 51, the positive electrode sheet 521 and the negative electrode sheet 523 are respectively connected to the positive terminal and the negative terminal.

[0081] The charging socket 400 further comprises an induction switch 435 which is triggered to send a signal to the main control board 90 when the charging connector 52 on the handle 30 is connected to the charging terminal 433, and the main control board 90 receives the signal and controls the charging terminal 433 to have current output. The induction switch 435 can be a touch switch, an infrared switch, etc. When the induction switch 435 is not triggered, the charging socket 400 is in a power-off state. The circuit board 431 is electrically connected to an external power supply through a power supply line 437, specifically, one end of the power supply line 437 is provided with a plug 4371, and the other end of the power supply line 437 is provided with a connecting portion 4373 which is connected to the circuit board 431.

[0082] Preferably, the induction switch 435 is arranged on the circuit board 431, and a plurality of charging terminals 433 are arranged around the induction switch 435 on the circuit board 431, each charging terminal 433 has elasticity and can make the contact between the charging terminal 433 and the charging connector 52 more firm.

[0083] Preferably, the circuit board 431 can further be provided with a battery protection circuit module which is used for effectively protecting the charging battery 51 in the hair dryer 100, i.e. preventing overcharging protection, over-discharging protection, over-current protection, short-circuit protection, etc. of the charging battery 51, so as to ensure the safety and stability of the charging socket 400 during the working process.

[0084] Optionally, the peripheral wall of the handle 30 is provided with a plurality of air inlet holes 360, when the wireless hair dryer 100 is working, the external air enters the air duct 20 from the air inlet holes 360, and is discharged from the air outlet of the wireless hair dryer 100. The upper shell 412 of the seat body 41 is provided with a plurality of air permeable holes 416, and the lower shell 414 is provided with a plurality of air permeable grooves 417. Specifically, the plurality of air permeable holes 416 are formed on the plug-in barrel 4101 of the upper shell 412, and each air permeable hole 416 communicates the plug-in space 4103 and the accommodation space 4123. The plurality of air permeable grooves 417 are formed on the base plate 4142 of the lower shell 414, and the air permeable grooves 417 communicate the accommodation space 4123 and the outside of the seat body 41. Therefore, the plurality of air permeable holes 416 communicate the plurality of air permeable grooves 417, that is, the external air enters the accommodation space 4123 through the air permeable grooves 417, and then enters the plug-in space 4103 through the air permeable holes 416. When the handle 30 is inserted into the plug-in part 410, the plurality of air permeable grooves 417 and the air permeable holes 416 communicate the plurality of air inlet holes 360; that is, when the wireless hair dryer 100 is started during the charging process, the external air flow enters the accommodation space 4123 through the air permeable grooves 417 of the lower shell 414, and then enters the air inlet holes 360 of the handle 30 through the air permeable holes 416, and then enters the air duct 20 from the air inlet holes 360, and is discharged from the air outlet of the wireless hair dryer 100, so as to prevent the wireless hair dryer 100 from being damaged due to lack of air. Specifically, the plug-in barrel 4101 is provided with a plurality of air permeable holes 416 corresponding to the air inlet holes 360 of the handle 30, and the periphery of the base plate 4142 is provided with a plurality of air permeable grooves 417, when the air duct 20 is started after being inserted into the plug-in part 410, the external air enters the air inlet holes 360 of the handle 30 through the air permeable grooves 417 of the base plate 4142 and the air permeable holes 416 on the plug-in barrel 4101.

[0085] As shown in Figure 24 The main control board 90 is electrically connected to the charging battery 51, the display module 105, the heating module 83, the motor 64 and the charging connector 52; the charging battery 51 is electrically connected to the main control board 90 through the battery protection module 96, and the switch module 316 is electrically connected to the main control board; the charging terminals 433 of the charging socket 400 are electrically connected to the main control board through the charging connector 52. The battery protection module 96 is electrically connected to the charging battery 51 and the main control board 90, and the battery protection module 96 protects the charging battery 51 from overcharging and overdischarging; at the same time, the charging battery 51 is also electrically connected to the main control board 90, and the main control board 90 detects the voltage of the charging battery 51 to protect the charging battery 51; therefore, the wireless hair dryer has double protection for the charging battery 51.

[0086] As shown in Figure 25As shown, when the wireless hair dryer is used, the air nozzle 70 is installed to the air cylinder 20, i.e. the second suction member 73 of the air nozzle 70 is suction positioned to the first suction member 221 of the air cylinder 20, and the air passage hole 75 is communicated to the air vent hole 220 of the front shell 22. The toggle key 318 is operated to trigger the first control switch 3161, which sends a signal to the main control board 90, which receives the signal and controls the motor 64 to work to drive the fan blade 66 to rotate, so that the air current passes through the filter screen 37 from the air inlet hole 360 of the tail cover 36 into the air inlet passage 301, and then is discharged through the air outlet passage 201, the air outlet 211, the air vent hole 220 and the air outlet hole 75. When it is needed to adjust the air volume of the wireless hair dryer, the toggle key 318 is only needed to be slid to connect the first control switch 3161 to different gears, so as to control the power of the motor 64 through the main control board 90 to adjust the rotating speed of the fan blade 66, thereby realizing the adjustment of the air speed. When hot air is needed, the toggle key 318 is operated to trigger the second control switch 3163, which sends a signal to the main control board 90, which receives the signal and controls the heating module 83 to heat, so that the air current passing through the heating module 83 is heat exchanged with the heating module 83, so that the wireless hair dryer blows out hot air current. In addition, the heating power of the heating module 83 can also be adjusted by operating the second control switch 3163 to meet the needs of users for hot air current of different temperatures.

[0087] In the use of the wireless hair dryer, since a part of the cold air current flowing from the air inlet passage 301 into the air outlet passage 201 passes through the charging battery 51 and the main control board 90, the heat generated by the working of the charging battery 51 and the main control board 90 is dissipated in time by the cold air current flowing from the air inlet passage 301 into the air outlet passage 201, so that the working of the wireless hair dryer is more stable, and the charging battery 51 and the main control board 90 are prevented from being damaged due to high temperature, thereby improving the service life of the wireless hair dryer.

[0088] The switch module 316 sends a signal to the main control board 90, and the main control board 90 controls the wireless hair dryer to enter which working mode and which wind speed according to the signal of the switch module 316. The working mode includes the shutdown mode, the cold wind mode and the hot wind mode, and the wind speed includes the low speed, the medium speed and the high speed. The shutdown mode means that the charging battery 51 stops supplying power to the main control board 90, the motor 64, the heating module 83 and the display module, so that each component in the electric hair dryer 100 is in a stopped working state. The cold wind mode means that the motor 64 of the electric hair dryer 100 works to drive the impeller 66 to rotate to form an airflow, and the heating module 83 does not heat, that is, the airflow blown out of the electric hair dryer 100 is natural wind. The hot wind mode means that the motor 64 of the electric hair dryer 100 works to drive the impeller 66 to rotate to form an airflow, and the main control board 90 controls the charging battery 51 to supply power to the heating module 83, and the heating module 83 also works to heat, and the airflow exchanges heat with the heating module 83 to form a hot airflow, that is, the airflow blown out of the electric hair dryer 100 is hot wind. The low speed, the medium speed and the high speed mean that the main control board 90 controls the motor 64 to drive the impeller 66 to rotate at different speeds to form three different airflow speed levels of low speed, medium speed and high speed, and the blowing amount of the high speed is the largest, the blowing amount of the medium speed is the second, and the blowing amount of the low speed is the smallest.

[0089] When the electric hair dryer 100 is in the charging state, no matter what working mode the electric hair dryer 100 is in, the main control board 90 controls the charging battery 51 to stop supplying power to the heating module 83 and the motor 64, that is, the heating module 83 is powered off and the motor 64 is stopped.

[0090] During the charging process of the electric hair dryer 100, the handle 30 of the electric hair dryer 100 can be taken out from the charging socket 400 at any time, and when the electric hair dryer 100 is taken out from the charging socket 400, the electric hair dryer 100 exits the charging state and restores the working mode before charging.

[0091] During the use of the electric hair dryer 100, the charging battery 51 is over-discharged, that is, when the main control board 90 detects that the voltage value of any charging battery 51 is lower than the first preset voltage threshold, the main control board 90 controls the heating module 80 to stop heating and the motor 64 to stop rotating. Specifically, the first preset voltage threshold set by the main control board 90 is 2.7V, and when the main control board 90 detects that the voltage value of any charging battery 51 in the charging battery assembly 50 is lower than 2.7V, the main control board 90 controls the charging battery to stop supplying power to the heating module 83 and the motor 64, so that the heating module 83 stops heating and the motor 64 stops rotating, and the over-discharge state is indicated through the display module 105.

[0092] The overcharge protection of the hair dryer 100 when charging, that is, during the charging process of the charging socket 400 to the charging battery 51, when the main control board 90 detects that the voltage value of any charging battery 51 is higher than the second preset voltage threshold, the main control board 90 controls the charging socket 400 to stop charging the charging battery 51. Specifically, the second preset voltage threshold set by the main control board 90 is 4.2V, and during the charging process of the charging socket 400 to the charging battery 51, when the main control board 90 detects that the voltage value of any charging battery 51 in the charging battery assembly 50 is higher than 4.2V, the main control board 90 controls the charging socket 400 to stop charging the charging battery 51.

[0093] The differential pressure protection of the charging battery 51, that is, when the charging battery 51 is in a fully charged state, the main control board 90 detects that the voltage value of any charging battery 51 is lower than the third preset voltage threshold, the main control board 90 controls the charging battery 51 to be prohibited from being charged and / or discharged. Specifically, the third preset voltage threshold set by the main control board 90 is 3.73V, and when the charging battery 51 is in a fully charged state, if the main control board 90 detects that the voltage value of any charging battery 51 is lower than 3.73V, it is judged that the voltage difference between the single charging battery 51 is too large, the charging and discharging of the charging battery 51 is prohibited, and the fault is locked. Even if the main control board 90 is powered on again, it will still enter this protection mode.

[0094] The overuse protection of the charging battery 51, that is, when the main control board 90 detects that the charging frequency of the charging battery 51 is greater than the preset frequency threshold, the main control board 90 controls the charging battery 51 to be prohibited from being charged and / or discharged. Specifically, the preset frequency threshold set by the main control board 90 is 1000 times, and when the charging socket 400 charges the charging battery 51, the main control board 90 detects that the charging frequency of the charging battery 51 is greater than 1000 times, the main control board 90 controls the charging battery 51 to be prohibited from being charged and / or discharged, and judges that the charging battery 51 has been overused. The charging and discharging of the charging battery 51 is prohibited, and the fault is locked. Even if the main control board 90 is powered on again, it will still enter this protection mode.

[0095] When the main control board 90 detects that the voltage value of any charging battery 51 is lower than the fourth preset voltage threshold, the main control board 90 controls the heating module 83 to stop heating, and the motor 64 continues to work in the hot air mode of the hair dryer 100. The hot air mode refers to the state that the heating module 83 also works and heats in the working state of the motor 64. Specifically, the fourth preset voltage threshold set by the main control board 90 is 3.1V, and when the main control board 90 detects that the voltage value of any charging battery 51 is lower than 3.1V in the hot air mode of the hair dryer 100, the main control board 90 controls the heating module 83 to stop heating, and the motor 64 continues to work.

[0096] The above is the implementation of the embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.

Claims

1. A cordless hair dryer, characterized by The application relates to a fan, which comprises a fan barrel, a handle connected to the fan barrel, a charging battery assembly, a fan assembly, a charging socket and a main control board, wherein the fan barrel is provided with an air outlet channel, the handle is provided with an air inlet channel communicated with the air outlet channel, the charging battery assembly comprises a plurality of charging batteries and a battery core support arranged in the air outlet channel of the fan barrel, the battery core support comprises a positioning plate and a plurality of spaced support columns arranged on the positioning plate, the support columns are arranged along the circumference of the positioning plate, a positioning ring is arranged between two adjacent support columns, and the charging batteries are arranged in the corresponding positioning rings; the fan assembly comprises a motor arranged in the handle and a fan blade connected to the motor; the main control board is electrically connected to the charging batteries and the motor, the charging batteries supply power to the motor and the main control board; the charging socket comprises a hollow seat body, the top of the seat body is recessed to form a plug-in part, the plug-in part comprises a plug-in cylinder connected to the upper shell of the charging socket and a connecting plate arranged at the bottom of the plug-in cylinder, and the plug-in cylinder and the connecting plate enclose a plug-in space; the upper shell of the seat body comprises a top plate and a side wall arranged around the top plate, the top plate and the side wall enclose a containing space, a plurality of air holes are arranged on the plug-in cylinder, each air hole is communicated with the plug-in space and the containing space, and the lower shell of the seat body is provided with a plurality of air grooves communicated with the containing space and the outside of the seat body; the circumferential wall of the handle is provided with a plurality of air inlets, the handle is arranged in the plug-in space, the air grooves and the air holes are communicated with the air inlets, and the main control board controls the motor to drive the fan blade to rotate, so that external air flows into the containing space through the air grooves of the lower shell, passes through the air holes, enters the air inlets of the handle, enters the air inlet channel and is discharged from the fan barrel through the air outlet channel.

2. The wireless hair dryer of claim 1, wherein, The application further comprises a battery protection module, the charging batteries are electrically connected to the main control board through the battery protection module, and the battery protection module is used for protecting the charging batteries.

3. The wireless hair dryer of claim 1, wherein, The charging socket further comprises charging terminals arranged in the plug-in part, the charging battery assembly further comprises charging connectors arranged at the end of the handle, the charging connectors are electrically connected to the main control board, the handle is inserted into the plug-in part, the charging connectors are electrically connected to the charging terminals, and the main control board controls the charging socket to charge the charging batteries.

4. The wireless hair dryer of claim 3, wherein, The charging connectors comprise positive and negative electrodes, the charging terminals comprise positive and negative terminals, and the positive and negative electrodes are electrically connected to the positive and negative terminals when the charging socket charges the charging batteries.

5. The wireless hair dryer of claim 3, wherein, The charging socket further comprises an induction switch, the induction switch is triggered to send a signal to the main control board when the charging connectors of the handle are connected to the charging terminals, the main control board receives the signal and controls the charging terminals to have current output.

6. The wireless hair dryer of claim 1, wherein, The charging batteries are arranged in parallel in the battery core support, and the charging batteries are connected in series.

7. The wireless hair dryer of claim 6, wherein, The electric core support is provided with a positioning member, and the main control board is fixedly connected to the positioning member, so that the main control board is parallel to the extension direction of the air inlet channel.

8. The wireless hair dryer of claim 6, wherein, The rechargeable battery is parallel to the central axis of the air duct.

9. The wireless hair dryer of claim 1, wherein, The handle is perpendicular to the air duct, and the air inlet channel is opposite to the rechargeable battery.

10. The wireless hair dryer of claim 1, wherein, The heating module further comprises a temperature probe electrically connected to the main control board, and the temperature probe is adjacent to the heating module and is used for measuring the temperature of the hot air flow near the heating module.

11. The wireless hair dryer of claim 10, wherein, When the temperature probe detects that the temperature value of the hot air flow is higher than a preset temperature value, the main control board controls the heating module to stop heating and / or the motor to stop rotating.

12. The wireless hair dryer of claim 11, wherein, In the working process of the motor, when the main control board detects that the voltage value of any rechargeable battery is lower than a first preset voltage threshold, the main control board controls the heating module to stop heating and the motor to stop rotating.

13. The wireless hair dryer of claim 10, wherein, In the process that the charging socket charges the rechargeable battery, when the main control board detects that the voltage value of any rechargeable battery is higher than a second preset voltage threshold, the main control board controls the charging socket to stop charging the rechargeable battery.

14. The wireless hair dryer of claim 3, wherein, When the rechargeable battery is in a full charge state, when the main control board detects that the voltage value of any rechargeable battery is lower than a third preset voltage threshold, the main control board controls the rechargeable battery to be prohibited from being charged or discharged.

15. The wireless hair dryer of claim 3, wherein, When the main control board detects that the charging frequency of the rechargeable battery is greater than a preset frequency threshold, the main control board controls the rechargeable battery to be prohibited from being charged or discharged.

16. The wireless hair dryer of claim 3, wherein, When the main control board detects that the voltage value of any rechargeable battery is lower than a fourth preset voltage threshold, the main control board controls the heating module to stop heating, and the motor continues to work.

17. The wireless hair dryer of claim 10, wherein, The wireless hair dryer further comprises a switch module electrically connected to the main control board, and the main control board controls the working state of the rechargeable battery, the motor and / or the heating module according to the signal emitted by the switch module.

18. The wireless hair dryer of claim 10, wherein, The wireless hair dryer further comprises a display module electrically connected to the main control board, and the display module is used for displaying the power and charging state of the rechargeable battery.

19. The wireless hair dryer of claim 10, wherein, ​

Images