CN114451650A

CN114451650A - Wireless hair drier

Info

Publication number: CN114451650A
Application number: CN202011252233.2A
Authority: CN
Inventors: 雷云; 刘楚伟; 张育斌
Original assignee: Shenzhen Carku Technology Co Ltd
Current assignee: Shenzhen Carku Technology Co Ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2022-05-10

Abstract

The invention provides a wireless hair drier which comprises a wind barrel, a handle connected with the wind barrel, a rechargeable battery assembly, a fan assembly and a main control board, wherein the wind barrel is provided with an air outlet channel, the handle is provided with an air inlet channel communicated with the air outlet channel, the rechargeable battery assembly comprises at least one rechargeable battery arranged in the air outlet channel of the wind barrel, the fan assembly comprises a motor arranged in the handle and a fan blade connected with the motor, the main control board is electrically connected with 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 air flow enters the air inlet channel and is discharged out of the wind barrel through the air outlet channel. The wireless hair drier is used without connecting a power line to a mains supply socket, so that the condition that the power line is wound around an arm or other objects does not exist; in addition, because be equipped with rechargeable battery in the wireless hair-dryer, consequently, the user can use in the scene that does not have the commercial power socket such as open air, and the usage scenario is extensive.

Description

Wireless hair drier

Technical Field

The invention relates to the field of hair dryers, in particular to a wireless hair dryer.

Background

When the traditional wired hair dryer on the market is used in daily life, a power line is easy to wind arms or other objects, and the use is inconvenient; in addition, when the wired hair dryer is used, the wired hair dryer is required to be plugged into a commercial power socket through a plug, so that the use scene of the wired hair dryer is limited, namely most of the wired hair dryer can only be used indoors, and the wired hair dryer cannot be used when power is cut off.

Disclosure of Invention

The invention aims to provide a wireless hair drier which is convenient to use.

In order to solve the technical problem, the invention provides a wireless hair drier which comprises a wind barrel, a handle connected with the wind barrel, a rechargeable battery assembly, a fan assembly and a main control board, wherein the wind barrel is provided with an air outlet channel, the handle is provided with an air inlet channel communicated with the air outlet channel, the rechargeable battery assembly comprises at least one rechargeable battery arranged in the air outlet channel of the wind barrel, the fan assembly comprises a motor arranged in the handle and fan blades connected with the motor, the main control board is electrically connected with 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 blades to rotate so that air flow enters the air inlet channel and is discharged out of the wind barrel through the air outlet channel.

The rechargeable battery of the wireless hair drier can supply power to the motor and the main control board, and when the rechargeable battery is used, the main control board controls the motor to drive the fan blades to rotate to form airflow which enters the hair drier from the air inlet channel and is discharged out of the air cylinder through the air outlet channel so as to be used by a user. Therefore, the wireless hair drier does not need to be connected to a mains supply socket by using a power line, and the condition that the power line is wound around an arm or other objects does not exist; in addition, as the rechargeable battery is arranged in the wireless hair dryer, a user can use the wireless hair dryer in the outdoor scene without a mains supply socket, and the use scene is wide; and also can use when the commercial power has a power failure, and wireless hair-dryer does not receive the influence of commercial power promptly, and convenient to use has improved user experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Figure 1 is a schematic perspective view of a radio hair dryer according to one embodiment of the present invention;

fig. 2 is an exploded perspective view of the electric hair dryer and charging socket of the wireless hair dryer of fig. 1;

FIG. 3 is a perspective view of the hair dryer of the cordless hair dryer of FIG. 1;

fig. 4 is a partially exploded perspective view of the handle of the hair dryer of fig. 3;

FIG. 5 is a schematic perspective view of the hair dryer of FIG. 4 from another perspective;

fig. 6 is an exploded schematic view of a further perspective structure of the handle of the hair dryer of fig. 4;

figure 7 is a schematic perspective view of another perspective of the cordless hair dryer of figure 6;

fig. 8 is a further exploded perspective view of the hair dryer of fig. 4;

fig. 9 is an exploded perspective view of the hair dryer of fig. 8 from another perspective;

fig. 10 is a schematic view of the main housing of the hair dryer of fig. 9, partially in section and in perspective;

FIG. 11 is a perspective view of the main housing of FIG. 10 from another perspective;

fig. 12 is an enlarged view of the toggle key of the hair dryer of fig. 9;

fig. 13 is an enlarged view of the blower assembly of the hair dryer of fig. 9;

fig. 14 is an enlarged view of the filter screen of the hair dryer of fig. 4;

fig. 15 is an exploded perspective view of the rechargeable battery assembly and the heat generating module shown in fig. 8;

fig. 16 is a schematic perspective view of the rechargeable battery assembly and the heat generating module shown in fig. 15 from another perspective;

fig. 17 is an exploded perspective view of the rechargeable battery pack of fig. 15;

fig. 18 is a perspective view of the rechargeable battery pack of fig. 17 from another perspective;

FIG. 19 is an exploded perspective view of the heat generating module of FIG. 15;

FIG. 20 is a perspective view of the heating module shown in FIG. 19;

fig. 21 is a perspective cross-sectional view of the hair dryer of fig. 3;

fig. 22 is an exploded perspective view of the charging receptacle of fig. 2;

fig. 23 is a schematic cross-sectional structure view of the charging socket in fig. 2;

figure 24 is a block circuit diagram of a radio hair dryer of the present invention;

fig. 25 is a schematic view of the air flow movement of the hair dryer of fig. 1 in use.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "thickness" and the like indicate orientations or positional relationships based on those shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not imply or indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1 to 9, the present invention provides a wireless hair dryer, which comprises a hair dryer 100 and a charging socket 400 for charging the hair dryer 100. The hair dryer 100 comprises a wind barrel 20, a handle 30 connected to the wind barrel 20, a rechargeable battery assembly 50, a fan assembly 60, a heating module 80 and a main control board 90, wherein the main control board 90 is electrically connected to the rechargeable battery assembly 50, the fan assembly 60 and the heating module 80. The air duct 20 is provided with an air outlet channel 201, and the handle 30 is provided with an air inlet channel 301 communicated with the air outlet channel 201. The rechargeable battery assembly 50 includes at least one rechargeable battery 51 disposed in the air duct 20, a charging connector 52 disposed at the end of the handle 30, and an electric wire 53 connected between the rechargeable battery 51 and the charging connector 52. Preferably, the rechargeable battery assembly 50 includes a plurality of rechargeable batteries 51, and the rechargeable batteries 51 are disposed in the air outlet channel 201 of the air duct 20. The blower assembly 60 includes a motor 64 disposed within the handle 30 and a fan blade 66 connected to the motor 64. The main control board 90 is electrically connected to the rechargeable battery 51 and the motor 64, and the rechargeable 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 66 to rotate, so that the airflow enters the air inlet channel 301 and is discharged out of the air duct 20 through the air outlet channel 201. The heating module 80 is disposed in the air outlet channel 201 to provide hot air flow for users. In this embodiment, the rechargeable battery 51 is a lithium battery.

The rechargeable battery 51 of the wireless hair dryer can supply power to the motor 64 and the main control board 90, when the wireless hair dryer is used, the main control board 90 controls the motor 64 to drive the fan blade 66 to rotate to form airflow which enters the hair dryer 100 from the air inlet channel 301 and is discharged out of the air duct 20 through the air outlet channel 201 for a user to use. Therefore, the electric hair drier 100 of the present invention does not need to use a power cord to connect to a commercial power socket, and does not have the condition that the power cord is wound around arms or other objects; in addition, because rechargeable battery 51 is arranged in electric hair dryer 100, users can use electric hair dryer 100 outdoors and other scenes without commercial power sockets, and the use scenes are wide; and can also use when the commercial power has a power failure, that is, hairdryer 100 is not influenced by the commercial power, and is convenient to use and improves user experience.

As shown in fig. 8-11, the air duct 20 includes a hollow main casing 21, a front casing 22 disposed at the front end of the main casing 21, and a rear cover 24 disposed at the rear end of the main casing 21, and the air outlet passage 201 penetrates the main casing 21 along the axial direction of the main casing 21. In this embodiment, the main housing 21 is generally a cylinder structure, and the air guide 210 is disposed in the middle of the front end of the main housing 21, specifically, the air guide 210 is a hemisphere shape recessed toward the air outlet channel 201 along the axial direction of the main housing 21. An air outlet 211 communicated with the air outlet channel 201 is arranged at the front end of the main casing 21 around the air guide 210. A snap ring 212 is disposed around the air outlet 211 of the main housing 21 and protrudes toward the front end of the main housing 21 along the axial direction, and the front housing 22 is sleeved on the snap ring 212. In the present invention, the front end finger hair dryer 100 faces the end of the user when in normal use, and the rear end finger hair dryer 100 faces away from the end of the user when in normal use.

The front end of the main housing 21 is provided with a plurality of connecting posts 213 protruding towards the front end around the snap ring 212, each connecting post 213 is provided with a locking hole along the axial direction thereof, and the connecting posts 213 are used for connecting the front housing 22 to the main housing 21. A plurality of support posts 214 are disposed in the front end of the main housing 21 and around the snap ring 212 toward the air outlet channel 201, and each support post 214 is provided with a connecting hole 2140 along the axial direction of the main housing 21. The support posts 214 are used to connect the rechargeable battery pack 50 to the main housing 21. In this embodiment, the front end of the main housing 21 is provided with a plurality of air outlets 211, and the plurality of air outlets 211 are uniformly arranged at intervals for at least one circle along the circumferential direction of the snap ring 212. A plurality of positioning strips 216 are arranged on the inner circumferential surface of the air outlet channel 201 close to the rear end, and the positioning strips 216 are used for positioning the rechargeable battery assembly 50; specifically, the plurality of positioning bars 216 are arranged in a circle along the circumferential direction of the main housing 21.

As shown in fig. 8 and 9, the front shell 22 has a vent 220 corresponding to the air outlet 211, and a first suction attachment 221 is disposed on a side of the front shell 22 away from the main housing 21. In this embodiment, the first suction member 221 has a ring-shaped structure, and the first suction member 221 is disposed around the ventilation hole 220. Hair dryer 100 also includes a nozzle 70 removably mounted to front housing 22. Specifically, the tuyere 70 includes a tuyere housing 71 and a second suction member 73, and the second suction member 73 is provided on a side surface of the tuyere housing 71 facing the front case 22. The tuyere housing 71 is provided with an air outlet hole 75 along the axial direction thereof, and the second adsorption member 73 is provided around the air outlet hole 75. When the air nozzle 70 is mounted to the air duct 20, the first suction member 221 and the second suction member 73 are mutually sucked to position the air nozzle 70 on the air duct 20, and the air outlet through hole 75 communicates with the air vent 220. In this embodiment, the first attraction piece 221 and the second attraction piece 73 are both magnets, and the first attraction piece 221 and the second attraction piece 73 are attracted and positioned by the conductive poles of the magnets.

In other embodiments, the first attraction member 221 is an iron ring, and the second attraction member 73 is a magnet; alternatively, the first suction member 221 is a magnet, and the second suction member 73 is an iron ring.

In other embodiments, the first attraction member 221 is an electromagnet electrically connected to the rechargeable battery 51, and the second attraction member 73 is a magnet or an iron block. Specifically, in one embodiment, the first suction unit 221 is electrically connected to the rechargeable battery at all times, so that the first suction unit 221 is kept magnetic, and the second suction unit 73 is conveniently attracted to the first suction unit 221; in another embodiment, the electric hair dryer 100 is further provided with a switch for controlling whether the first suction accessory 221 is electrically connected with the rechargeable battery 51, and when the air nozzle 70 needs to be used, the switch is turned on to enable the first suction accessory 221 to have magnetism, so that the first suction accessory 221 is conveniently connected with the second suction accessory 73 in a suction manner; when the air nozzle 70 needs to be removed, the switch is turned off to disconnect the electrical connection between the first suction fitting 221 and the rechargeable battery 51, and the magnetism of the first suction fitting 221 is lost, so that the air nozzle 70 is conveniently removed.

The rear cover 24 can be attached to the rear end of the main housing 21 to position the rechargeable battery pack 50 into the main housing 21. Specifically, the rear cover 24 includes a cover plate 241 and a flange 243 protruding from an edge of the cover plate 241, and a plurality of countersunk holes 244 are formed in a side surface of the cover plate 241 facing away from the flange 243. The outer peripheral surface of the flange 243 is provided with positioning grooves 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 opposite to the flange 243.

The electric wire 53 is disposed in the peripheral wall of the handle 20, specifically, the peripheral wall of the handle 30 is provided with a wire slot 303, and the electric wire 53 is accommodated in the wire slot 303 to prevent the electric wire 53 from occupying the space of the air intake channel 301 of the handle 30. Therefore, the electric wire 53 does not block the airflow generated by the fan assembly 60, so that the air inlet channel 301 is kept smooth, the air pressure of the hair dryer 100 is stronger and more concentrated, the working efficiency is higher, and the user experience is improved.

In this embodiment, the handle 30 includes a handle 31 connected to the air duct 21, a handle cover 33 detachably fastened to the handle 31, and a sleeve 35 sleeved on the handle 31 and the handle cover 33, wherein the handle 31 and the handle cover 33 are fastened to form a cylinder. The blower unit 60 is held between the handle body 31 and the handle cover 33, and the electric wire 53 is provided 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 groove 303, the wire groove 303 extends from one end to the other end along the length direction of the handle body 31, the electric wire 53 is accommodated in the wire groove 303, and the sleeve 35 is sleeved outside the handle body 31 to position the electric wire 53.

In other embodiments, the outer peripheral surface of the handle cover 33 may also be provided with a slot, the slot extends from one end of the handle cover 33 to the opposite end, the electric wire 53 is accommodated in the slot, and the sleeve 35 is sleeved outside the handle cover 33 to position the electric wire 53.

In other embodiments, the inner circumferential surface of the handle body 31 and/or the handle cover 33 is provided with a wire groove along the extending direction of the air inlet channel 301, and the electric wire 53 is clamped in the wire groove.

In other embodiments, a wire groove is provided in the peripheral wall of the handle body 31 and/or the handle cover body 33 in the extending direction of the air intake passage 301, and the electric wire 53 is inserted into the wire groove.

In this embodiment, the radial cross section of the handle body 31 is a semicircular ring, one end of the inner peripheral surface of the handle body 31, which is away from the main housing 21, is provided with a positioning groove 312, the positioning groove 312 extends along the circumferential direction of the handle body 31 and penetrates through two side surfaces of the handle body 31, and the positioning groove 312 is used for positioning the fan assembly 60. The handle body 31 has two side walls provided with connection holes 314, respectively. The tail frame 311 is disposed at the end of the handle 31, and the tail frame 311 is disposed with an air inlet 315 communicated with the air inlet channel 301, that is, the air inlet 315 is disposed at an end of the handle 31 far away from the housing 21. The side of the tail frame 311 facing the cover 33 is provided with a fastening hole 3110.

As shown in fig. 7 and 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 operating status of the rechargeable battery 51, the motor 64 and/or the heating module 80 according to the received signal sent by the switch module 316. Specifically, a first control switch 3161 and a second control switch 3163 are disposed on an inner circumferential surface of the handle body 31 near the housing 21, 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 for controlling the air volume of the fan assembly 60, that is, the first control switch 3161 is used for controlling the power of the motor 64 to adjust the rotation speed of the fan blade 66, so as to adjust the air volume; the second control switch 3163 is used to control whether the heating module 80 is turned on to generate heat, that is, 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 adjust the temperature of the air flow. The first control switch 3161 and the second control switch 3163 are driven by the toggle key 318 to operate the first control switch 3161 and the second control switch 3163, respectively.

As shown in fig. 6 to 9, the outer peripheral surface of the handle 31 is provided with guide slots 319 corresponding to the first control switch 3161 and the second control switch 3163, and the two toggle keys 318 are inserted into the corresponding guide slots 319 and connected to the first control switch 3161 and the second control switch 3163.

As shown in fig. 8-9 and 12, each toggle key 318 includes a toggle piece 3180, two spaced sliding guide hooks 3182 disposed on one side surface of the toggle piece 3180, and a antislip strip 3184 disposed on the other side surface opposite to the toggle piece 3180. The two sliding guide hooks 3182 are respectively inserted into the two corresponding sliding guide slots 319 of the handle body 31, so that the toggle key 318 is slidably connected to the handle body 31 along the sliding guide slots 319, and the two toggle keys 318 are respectively connected to the first control switch 3161 and the second control switch 3163. The anti-slip strip 3184 facilitates user manipulation of the toggle key 318.

As shown in fig. 6 to 9, the structure of the handle cover 33 is similar to that of the handle body 31, specifically, the radial cross section of the handle cover 33 is a semicircular ring shape, one end of the inner peripheral surface of the handle cover 33 away from the main housing 21 is provided with a positioning groove 332, the positioning groove 332 extends along the circumferential direction of the handle cover 33 and penetrates through two side surfaces of the handle cover 33, and the handle cover 33 is used for positioning the blower assembly 60. Through holes 334 are respectively formed on both side walls of the handle cover 33. The tail frame 331 is disposed at the end of the handle cover 33, and the tail frame 331 is disposed with an air inlet 335 communicated with the air inlet channel 301, that is, the air inlet 335 is disposed at an end of the handle cover 33 away from the housing 21. The side of the tail frame 331 facing the handle body 31 is provided with a clamping block 3310. Two abutting plates 336 are arranged on the inner peripheral surface of the handle cover body 33 near the housing 21, the two abutting plates 336 are used for abutting against the first control switch 3161 and the second control switch 3163, and each abutting plate 336 is parallel to the extending direction of the air inlet channel 301 so as to reduce the obstruction of the abutting plates 336 to the air flow. In an embodiment, the abutting sheet 336 can be omitted, or the abutting sheet 336 can be replaced by an abutting needle, so that the obstruction to the air flow can be further reduced.

The peripheral 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 peripheral surface of the sleeve 35 is provided with a connecting ring 351 at one end away from the main housing 21, and the connecting ring 351 is provided with a locking groove 352 along the circumferential direction.

The handle 30 further comprises a tail cover 36, the tail cover 36 is detachably connected to the tail end of the handle body 31 and/or the handle cover body 33, and the tail cover 36 is provided with an air inlet hole 360; when the tail cap 36 is coupled to the handle body 31 and/or the handle cover 33, the intake holes 360 communicate with the

intake ports

315, 335. Specifically, the tail cover 36 is a cylindrical structure, and the peripheral wall of the tail cover 36 is provided with a plurality of strip-shaped air inlet holes 360, and the air inlet holes 360 are arranged along the circumferential direction of the handle 30. Preferably, the air intake holes 360 are uniformly spaced along the circumference of the handle 30. The end surface of the tail cap 36 facing the handle body 31 is provided with a clamping strip 362, and the clamping strip 362 extends along the circumferential direction of the tail cap 36. The end of the end cap 36 facing away from the clamping strip 362 is provided with a mounting hole 364, and the mounting hole 364 is used for fixing the charging connector 52.

Preferably, a detachable filter screen 37 is provided between the tail cap 36 and the handle body 31 and/or the handle cover body 33. In this embodiment, the strainer 37 is a cylindrical structure, and the strainer 37 is detachably disposed on the tail cover 36, the tail frame 311 of the handle body 31, and the tail frame 311 of the handle cover body 33. As shown in fig. 14, the end of the filter screen 37 is provided with a slot, which is clipped on the tail cover 36, so that the filter screen 37 is positioned in the tail cover 36.

Referring to fig. 7-9 and 13, the fan assembly 60 further includes an air inlet cylinder 62, a motor 64 and a fan blade 66 connected to the motor 64, wherein the motor 64 and the fan blade 66 are disposed in the air inlet cylinder 62. When the air inlet barrel 62 is clamped by the handle body 31 and the handle cover body 33, the rotating axis of the fan blade 66 is coaxial with the center line of the air inlet channel 301. The outer peripheral surface of the air inlet barrel 62 is provided with a plurality of positioning bumps 67, and the positioning bumps 67 are abutted against the inner peripheral surface of the handle body 31 and the inner peripheral surface of the handle cover body 33, so that the fan assembly 60 is firmly positioned in the handle 30.

As shown in fig. 8-9 and 15-18, the rechargeable battery assembly 50 further includes a cell support 55 for mounting a plurality of rechargeable batteries 51, the plurality of rechargeable batteries 51 are positioned in the cell support 55 in parallel and spaced, and the plurality of rechargeable batteries 51 are connected in series. Preferably, a plurality of rechargeable batteries 51 are arranged along the circumferential direction of the cell support 55; further, a plurality of rechargeable batteries 51 are arranged at regular intervals along the circumferential direction of the cell support 55. In this embodiment, the battery cell support 55 includes a connection plate 550 and a plurality of support columns 551 arranged at intervals on the connection plate 550, the support columns 551 correspond to the support columns 214 of the main housing 21 one by one, and a fixing hole 5510 is formed at an end of each support column 551 along an axial direction thereof. A positioning ring 553 is arranged between two adjacent supporting columns 551, and the plurality of rechargeable batteries 51 are respectively positioned in the corresponding positioning rings 553. Specifically, the connecting plate 550 is a circular plate, and the plurality of support pillars 551 are arranged at intervals along the circumferential direction of the connecting plate 550, in this embodiment, the number of the support pillars 551 is 4, that is, 4 support pillars 551 are arranged at intervals along the circumferential direction of the connecting plate 550; the number of the rechargeable batteries 51 is 6; the positioning rings 553 between two adjacent support posts 551 are substantially gourd-shaped, and each positioning ring 553 can position two parallel rechargeable batteries 51, i.e., two rechargeable batteries 51 are positioned between two adjacent support posts 551.

And a positioning part 555 is arranged on the battery cell support 55, and the positioning part 555 is used for connecting the main control board 90. Specifically, the positioning member 555 is a positioning column extending from the connecting plate 550 along an axial direction parallel to the supporting column 551, and a positioning groove 5551 is formed on an outer circumferential surface of the positioning column along the axial direction. 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 for fixing the main control plate 90 to the cell support 55 together. The middle part of the end, far away from the connecting plate 550, of the battery cell support 55 is provided with a connecting piece 556, the periphery of the connecting piece 556 is provided with staggered clamping grooves 5562, and the heating module 80 is fixed on the battery cell support 55 through the connecting piece 556 and the clamping grooves 5562. The side of the connecting plate 550 away from the supporting column 551 is provided with a plurality of fixing posts 557, and each fixing post 557 is provided with a fixing hole 5571 along the axial direction. An opening 558 is formed in the inner cavity of the connecting plate 550 corresponding to the positioning ring 553, and a clamping column 559 is arranged around the opening 558 on the side of the connecting plate 550 away from the supporting column 551.

In other embodiments, one rechargeable battery 51 or more than two rechargeable batteries 51 may be positioned between each two adjacent support posts 551, which may be freely selected according to the needs.

The rechargeable battery assembly 50 further includes a plurality of first connecting pieces 54 connected to one ends of the plurality of rechargeable batteries 51 and a plurality of second connecting pieces 56 connected to the opposite ends of the plurality of rechargeable batteries 51. In this embodiment, each of the first connecting pieces 54 and each of the second connecting pieces 56 are nickel pieces. The plurality of first connection pieces 54 and the plurality of second connection pieces 56 connect the plurality of rechargeable batteries 51 in series. Each first connecting piece 54 is provided with a fastening hole 542. The rechargeable battery assembly 50 further includes a gasket 57 and a protection module 58, wherein the gasket 57 has a through hole 571 at the middle thereof and a fastening hole 573 at the periphery thereof. In this embodiment, the protection module 58 is a sheet structure, and the protection module 58 has a through hole 581 located in the middle thereof, clamping holes 583 located around the through hole, and two positioning holes 585 located on one side. One end of the main control board 90 is provided with a clipping sheet 92, and one side of the main control board 90 adjacent to the clipping sheet 92 is provided with a plugging sheet 94. In this embodiment, two spaced-apart latch tabs 92 are provided at one end of the main control board 90. The main control board 90 is connected to the rechargeable battery assembly 50, the fan assembly 60 and the heating module 80 through wires.

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 rechargeable battery 51 and the main control board 90, and the battery protection module 90 is used for protecting the rechargeable battery 51. In this embodiment, the battery protection module 96 is a circuit board electrically connected to the main control board 90, and the battery protection module 96 is used for effectively protecting the rechargeable battery 51 in the hair dryer 20, i.e., preventing overcharge protection, overdischarge protection, overcurrent protection, short circuit protection, and the like of the rechargeable battery 51.

In other embodiments, the battery protection module 96 may also be disposed at other positions of the hair dryer 20, such as in the battery cell support 55, and the battery protection module 96 is connected to the main control board 90 through a wire.

In other embodiments, the battery protection module 96 may also be disposed within the charging receptacle 400.

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

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

As shown in fig. 15-16 and 19-20, the heat generating module 80 is located at one end of the rechargeable battery assembly 50, specifically, the heat generating module 80 includes a heat generating module support 81 connected to the rechargeable battery assembly 50 and a heat generating module 83 wound on the heat generating module support 81, and the heat generating 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 rechargeable 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 an end of the cell support 55 away from the connection plate 550. In this embodiment, the heating module bracket 81 includes two supporting plates 812 and a positioning block 815 that are connected in a staggered manner, wherein a plurality of bayonets 814 are respectively disposed on two opposite sides of each supporting plate 812, and the plurality of bayonets 814 are arranged along the side edges of the supporting plates 812. The side of the positioning block 815 facing the heating module support 81 is provided with staggered clamping grooves 817, and two opposite ends of the positioning block 815 are respectively provided with a connecting hole 818.

When assembling the heating module 80 to the electric core support 55, the heating module 83 is wound on the heating module support 81, that is, the heating module 83 is clamped in the bayonet 814 of the support plate 812. The end of the heating module support 81 away from the heating module 83 is connected to the electric core support 55, and specifically, the support plate 812 is clamped in the clamping slot 5562 of the electric core support 55. The positioning block 815 is connected to the connecting member 556 of the battery cell support 55, specifically, one end of the supporting plate 812, which is away from the battery cell support 55, is clamped in the clamping groove 817 of the positioning block 815, and the two locking members are respectively inserted into the connecting holes 818 of the positioning block 815 and then locked to the connecting member 556 of the battery cell support 55, so that the heating module support 81 is fixedly connected to the battery cell support 55.

Referring to fig. 3 to 15 and 21, when the hair dryer 100 is assembled, the combination of the rechargeable battery assembly 50 and the heating module 80 is placed in the air outlet channel 201 of the main housing 21, so that the plurality of support posts 551 and the plurality of support posts 214 are in one-to-one butt joint, and the plurality of fasteners, such as screws, are respectively inserted into the connecting holes 2140 of the support posts 214 and are locked in the corresponding fixing holes 5510, so that the rechargeable battery assembly 50 and the heating module 80 are fixed to the main housing 21. At this time, the heating module 80 is close to the air outlet 211 of the main housing 21, the rechargeable battery assembly 50 and the main control board 90 are located at one end of the air outlet channel 201 far away from the air outlet 211, one ends of the rechargeable battery assembly 50 and the main control board 90 close to the heating module 80 are opposite to the air inlet channel 301, an axial direction of each rechargeable battery 51 intersects with an extending direction of the air inlet channel 301, preferably, the axial direction of each rechargeable battery 51 is perpendicular to the extending direction of the air inlet channel 301, and the main control board 90 is parallel to the extending direction of the air inlet channel 301. Therefore, a part of the airflow flowing into the air outlet channel 201 from the air inlet channel 301 passes through the gap between the rechargeable batteries 51 and the outer surface of the main control board 90, passes through the heating module 80, 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 channel 301 and then is discharged from the air outlet 211. The sealing ring 247 is sleeved in the positioning groove 246 of the rear cover 24, and the rear cover 24 covers the rear end of the main housing 21 until the flange 243 of the rear cover 24 abuts against the positioning bar 216, and the plurality of locking members are inserted into the countersunk holes 244 of the rear cover 24 and locked in the fixing holes 5571 of the fixing posts 557 corresponding to the cell holders 55, so that the rechargeable battery assembly 50 and the heating module 8 are firmly fixed in the upper housing 21. The front housing 22 is mounted to the front end of the main housing 21, specifically, the front housing 22 is sleeved on the snap ring 212 of the main housing 21, and a plurality of fasteners, such as screws, pass through the front housing 22 and are locked in the locking holes of the corresponding connecting posts 213, so as to fixedly connect the front housing 22 to the main housing 21.

The blower assembly 60 is mounted to the handle 30, specifically, a portion of the air inlet tube 62 of the blower assembly 60 is received in the positioning slot 312 of the handle body 31, the handle cover 33 is fastened to the handle body 31, and another portion of the air inlet tube 62 is received in the positioning slot 332 of the handle cover 33, the fastening blocks 3310 of the tail frame 331 are fastened to the fastening holes 3110 of the tail frame 311, and the fastening members, such as screws, are inserted into the through holes 334 of the handle cover 33 and fastened to the corresponding connecting holes 314 of the handle body 31, so that the blower assembly 60 is clamped between the handle body 31 and the handle cover 33. At this time, the axis of rotation of the fan blade 66 of the fan assembly 60 is collinear with the axis of the handle 30, that is, the axis of rotation of the air intake channel 301 is collinear with the axis of rotation 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 electric wire 53 is accommodated in the wire groove 303 of the handle body 31, the sleeve 35 is sleeved outside the handle body 31 and the handle cover body 33 until the guide groove 350 of the sleeve 35 is opposite to the guide chute 319 of the handle body 31, and the guide slide hooks 3182 of the two toggle keys 318 are respectively inserted into the corresponding guide chutes 319 and connected to the first control switch 3161 and the second control switch 3163. Charging connector 52 is fitted into fitting hole 364 of tail cap 36, and filter screen 37 is attached to the inner peripheral surface of tail cap 36. The tail cap 36 is connected to the tail end of the sleeve 35, specifically, the tail cap 36 is sleeved on the tail frames 311 and 331, and the clamping strip 362 of the tail cap 36 is detachably clamped in the clamping groove 352 of the sleeve 35. At this time, the air inlet 315 is exposed out of the sleeve 35, and the air inlet 360 of the tail cover 36, the through hole of the filter screen 37 and the air inlet 315 are communicated with each other.

Optionally, the heating module 80 further includes a temperature probe electrically connected to the main control board 90, where 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 this embodiment, the main control board 90 sets the preset temperature value to be 80 degrees, and when the temperature value detected by the main control board 90 is higher than 80 degrees, the main control board 90 controls the rechargeable battery 51 to stop supplying power to the heating module 83, and also controls the rechargeable battery 51 to stop supplying power to the motor 64, so that the heating module 83 stops heating and the electric rotor 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 firstly controls the rechargeable battery 51 to stop supplying power to the heating module 83 to stop heating the heating module 83, and then controls the rechargeable battery 51 to stop supplying power to the motor 64 to stop the operation of the electric motor 64.

Optionally, the hair dryer 100 further comprises a display module 105 (as shown in fig. 24) electrically connected to the main control board 90, wherein the display module 105 is used for displaying the electric quantity and the charging state of the rechargeable battery 51, so as to facilitate the observation of the charging condition of the hair dryer 100 in time. Display module 105 may be an LED lamp, a nixie tube, or a display screen, etc. provided on the housing of hair dryer 100.

As shown in fig. 2 and 22-23, the charging socket 400 includes a plug portion 401 and a charging terminal 433 disposed on the plug portion 401, the charging connector 52 is electrically connected to the main control board 90, when the handle 30 is inserted into the plug 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.

Specifically, the charging socket 400 includes a hollow base body 410 and a charging assembly 430 disposed in an inner cavity of the base body 410, and a top portion of the base body 410 is recessed to form the inserting portion 401. The charging assembly 430 includes a circuit board 431, and a charging terminal 433 is electrically connected to the circuit board 431, and preferably, the charging terminal 433 is disposed on the circuit board 431. Charging terminal 433 extends through mating part 401 to the interior cavity of mating part 401. The circuit board 431 is provided with a transformer that can convert ac power to dc power for charging the blower 100.

The housing 410 includes an upper housing 412 and a lower housing 414, and the upper housing 412 and the lower housing 414 can be connected by buckling. The upper housing 412 includes a top plate 4120 and a sidewall 4122 surrounding the top plate 4120, and the insertion part 401 is formed by recessing from the middle of the top plate 4120 to the inner cavity of the upper housing 412. In this embodiment, the upper housing 412 is a circular truncated cone cavity, that is, the top plate 4120 is a circular plate, the side wall 4122 is arranged in a circle around the outer periphery of the top plate 4120, the top plate 4120 and the side wall 4122 enclose an accommodating space 4123, the charging assembly 430 is accommodated in the accommodating space 4123, and the plug portion 401 extends from the top plate 4120 to the accommodating space 4123. Preferably, the radial dimension of the accommodating space 4123 gradually increases from the top plate 4120 to the side away from the top plate 4120, that is, the area of the top plate 4120 is smaller than the area enclosed by the side walls 4122 away from the side of the top plate 4120, so that the placement of the seat 410 is more stable.

As shown in fig. 23, the socket part 401 includes a socket tube 4101 connected to the upper case 412 of the charging socket 40 and a connection plate 4102 provided at the bottom of the socket tube 4101, the socket tube 4101 and the connection plate 4102 enclose a socket space 4103, and the handle 30 can be accommodated in the socket space 4103. The connection plate 4102 is provided with a flow guiding hole, which is communicated to the outside of the charging socket 40, and the flow guiding hole is used for discharging the liquid, such as water, which is mistakenly inserted into the insertion tube 4101, to the outside of the charging socket 40, so as to play a role of dredging, thereby avoiding other abnormal situations, such as short circuit and damage of the wireless hair dryer 100, caused by the contact of the liquid with the charging terminal 433 and/or the charging connector 52.

In this embodiment, the plugging cylinder 4101 is a circular cylinder, and the plugging cylinder 4101 extends from the middle of the top plate 4120 toward the inside of the accommodating space 4123 along the axial direction of the seat 410. The insertion space 4103 of the insertion tube 4101 is a circular hole, and the inner diameter of the insertion space 4103 is slightly larger than the diameter of the end of the handle 30 to facilitate the insertion or removal of the end of the handle 30.

In other embodiments, the insertion space 4103 of the insertion tube 4101 may be a rectangular hole, an elliptical hole, a polygonal hole, etc., and the end of the handle 30 is correspondingly configured as a rectangular column, an elliptical column, or a polygonal column, so that the end of the handle 30 can be inserted into or taken out of the insertion space 4103 conveniently, and the charging connector 52 on the handle 30 is kept in contact with the charging terminal 433 of the charging socket 40.

A protruding piece 4105 is protruded from the middle of the connection plate 4102 toward the insertion space 4103, and the charging terminal 433 extends into the insertion space 4103 after passing through the protruding piece 4101. Specifically, the connection plate 4102 protrudes toward the middle of the surface of the insertion space 4103 toward the insertion space 4103 to form a tab 4105, and the surface of the tab 4105 facing toward the insertion space 4103 is closer to the top plate 4120 than the surface of the connection plate 4102 facing toward the insertion space 4103. The tab 4105 is provided with a plurality of positioning holes, and the plurality of charging terminals 433 are respectively disposed in the plurality of positioning holes, that is, the charging terminals 433 are disposed on the tab 4105.

The connecting plate 4102 forms a guiding groove 4106 around the protruding plate 4105, and the guiding hole is opened at a position where the connecting plate 4102 faces the guiding groove 4106. In this embodiment, the flow guide holes are communicated to the outside of the base 410 through the flow guide tube. Specifically, the liquid in the guiding groove 4106 is discharged to the outside of the seat 410 through the guiding holes and the guiding pipe.

A plurality of positioning columns 4124 and a plurality of connecting columns 4125 are arranged inside the upper shell 412, and the positioning columns 4124 and the connecting columns 4125 are used for positioning the circuit board 431 to the inner cavity of the base body 410. The lower housing 414 includes a substrate 4142 that can be fastened to the bottom of the upper housing 412, and a plurality of hooks are disposed around the surface of the substrate 4142 facing the upper housing 412, and are used to be fastened to the bottom wall of the sidewall 4122, so that the upper housing 412 and the lower housing 414 are fixedly connected. The surface of the substrate 4142 facing the upper housing 412 is provided with a plurality of supporting posts 4143, and the plurality of supporting posts 4143 correspond to the plurality of positioning posts 4124 of the upper housing 412 one by one. The top end surface of each supporting post 4143 is provided with a positioning hole along the axial direction thereof, and when the upper housing 412 is fastened to the lower housing 414, the positioning posts 4124 are respectively inserted into the positioning holes of the supporting posts 4143.

As shown in fig. 2 and 22 to 23, the charging connector 52 includes a positive electrode tab 521 and a negative electrode tab 523, the charging terminal 433 includes a positive electrode terminal and a negative electrode terminal, and the positive electrode tab 521 and the negative electrode tab 523 are connected to the positive electrode terminal and the negative electrode terminal, respectively, when the charging socket 400 charges the rechargeable battery 51.

The charging socket 400 further includes an inductive switch 435, when the charging connector 52 on the handle 30 is connected to the charging terminal 433, the inductive switch 435 is triggered to send a signal to the main control board 90, and the main control board 90 receives the signal and controls the charging terminal 433 to output current. The inductive switch 435 may be a tact switch, an infrared switch, or the like. When the inductive switch 435 is not activated, the charging receptacle 400 is in a power-off state. The circuit board 431 is electrically connected to an external power source through a power line 437, specifically, one end of the power line 437 is provided with a plug 4371, the other end of the power line 437 is provided with a connecting portion 4373, and the connecting portion 4373 is connected to the circuit board 431.

Preferably, the inductive switch 435 is disposed on the circuit board 431, and a plurality of charging terminals 433 are disposed on the circuit board 431 around the inductive switch 435, wherein each charging terminal 433 has elasticity, so that the charging terminal 433 can be in firmer contact with the charging connector 52.

Preferably, the circuit board 431 may further be provided with a battery protection circuit module, which is used for effectively protecting the rechargeable battery 51 in the hair dryer 100, i.e. preventing overcharge protection, overdischarge protection, overcurrent protection, short circuit protection and the like of the rechargeable battery 51, so as to ensure the safety and stability of the charging socket 40 during operation.

Optionally, the handle 30 is provided with a plurality of air inlet holes 360 on the peripheral wall thereof, and when the cordless dryer 100 is in operation, external air enters the air duct 20 through the air inlet holes 360 and is discharged from the air outlet holes of the cordless dryer 100. The upper shell 412 of the seat body 41 is provided with a plurality of ventilation holes 416, and the lower shell 414 is provided with a plurality of ventilation grooves 417. Specifically, a plurality of ventilation holes 416 are formed on the insertion tube 4101 of the upper housing 412, and each ventilation hole 416 communicates the insertion space 4103 with the accommodating space 4123. The ventilation grooves 417 are formed in the base plate 4142 of the lower housing 414, and the ventilation grooves 417 communicate the accommodating space 4123 with the outside of the housing 41. Therefore, the plurality of air holes 416 are communicated with the plurality of air permeable grooves 417, that is, external air enters the accommodating space 4123 through the air permeable grooves 417 and then enters the inserting space 4103 through the air holes 416. After the handle 30 is inserted into the insertion part 410, the plurality of ventilation slots 417 and the ventilation holes 416 are communicated with the plurality of air inlet holes 360; that is, if the wireless hair dryer 100 is started during the charging process of the wireless hair dryer 100, the external air flow enters the accommodating space 4123 through the ventilation slot 417 of the lower housing 414, then enters the air inlet hole 360 of the handle 30 through the ventilation hole 416, enters the air duct 20 through the air inlet hole 360, and is discharged from the air outlet hole of the wireless hair dryer 100, so as to prevent the wireless hair dryer 100 from being damaged due to no air intake. Specifically, the plugging cylinder 4101 is provided with a plurality of air vents 416 corresponding to the air inlet holes 360 of the handle 30, a plurality of air vents 417 are provided around the base plate 4142, and when the air duct 20 plugged into the plugging portion 410 is started, external air enters the air inlet holes 360 of the handle 30 through the air vents 417 of the base plate 4142 and the air vents 416 of the plugging cylinder 4101.

As shown in fig. 24, the main control board 90 is electrically connected to the rechargeable battery 51, the display module 105, the heating module 83, the motor 64 and the charging connector 52; the rechargeable 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 terminal 433 of the charging socket 400 is electrically connected to the main control board through the charging connector 52. The battery protection module 96 is electrically connected to the rechargeable battery 51 and the main control board 90, and the battery protection module 96 performs overcharge and overdischarge protection on the rechargeable battery 51; meanwhile, the rechargeable battery 51 is also electrically connected with the main control board 90, and the main control board 90 detects the voltage of the rechargeable battery 51 so as to protect the rechargeable battery 51; thus, the wireless hair dryer has a double protection for the rechargeable battery 51.

As shown in fig. 25, when the cordless dryer is used, the air nozzle 70 is mounted to the air duct 20, that is, the second suction member 73 of the air nozzle 70 is sucked and positioned to the first suction member 221 of the air duct 20, and the air through hole 75 communicates with the air vent 220 of the front case 22. The toggle key 318 is operated to trigger the first control switch 3161, the first control switch 3161 sends a signal to the main control board 90, the main control board 90 receives the signal and controls the motor 64 to work to drive the fan blades 66 to rotate, so that the airflow passes through the filter screen 37 from the air inlet hole 360 of the tail cover 36, enters the air inlet channel 301, and is discharged through the air outlet channel 201, the air outlet 211, the air vent 220 and the air outlet through hole 75. When the air volume of the wireless hair dryer needs to be adjusted, the first control switch 3161 is connected to different gears only by sliding the toggle key 318, and the power of the motor 64 is controlled through the main control board 90 to adjust the rotation speed of the fan blade 66, so that the adjustment of the air speed is realized. When hot air is needed, the toggle key 318 is operated to trigger the second control switch 3163, the second control switch 3163 sends a signal to the main control board 90, the main control board 90 receives the signal and controls the heating module 83 to generate heat, and when the air flow passes through the heating module 83, heat exchange is carried out between the air flow and the heating module 83, so that the wireless hair drier blows out hot air. In addition, the heating power of the heating module 83 can also be adjusted by operating the second control switch 3163, so as to meet the user's requirements for hot air flows with different temperatures.

In the using process of the wireless hair drier, because a part of the cold air flowing into the air outlet channel 201 from the air inlet channel 301 passes through the rechargeable battery 51 and the main control board 90, the heat generated when the rechargeable battery 51 and the main control board 90 work is dissipated in time by the cold air flowing into the air outlet channel 201 from the air inlet channel 301, so that the wireless hair drier works more stably, the rechargeable battery 51 and the main control board 90 can be prevented from being damaged due to overhigh temperature, and the service life of the wireless hair drier is prolonged.

The toggle key 318 is operated to trigger the switch module 316, the switch module 316 sends a signal to the main control board 90, and the main control board 90 controls what kind of working mode and what kind of wind speed the wireless hair dryer enters according to the received signal of the switch module 316. The working modes comprise a shutdown mode, a cold air mode and a hot air mode, and the wind speeds comprise a low speed, a medium speed and a high speed. The shutdown mode means that the rechargeable battery 51 in the electric hair dryer 100 stops supplying power to the main control panel 90, the motor 64, the heating module 83 and the display module, so that all components in the electric hair dryer 100 are in a shutdown state. The cool air mode is that the motor 64 of the hair dryer 100 operates to drive the fan blade 66 to rotate to form an air flow, and the heating module 83 does not generate heat, that is, the air flow blown by the hair dryer 100 is natural air. The hot air mode refers to that the motor 64 of the electric hair dryer 100 works to drive the fan blades 66 to rotate to form an air flow, meanwhile, the main control board 90 controls the rechargeable battery 51 to supply power to the heating module 83, the heating module 83 also works to generate heat, and the air flow passes through the heating module 83 and is subjected to heat exchange to form a hot air flow, namely, the air flow blown out by the electric hair dryer 100 is hot air. The low speed, the medium speed and the high speed refer to that the main control board 90 controls the motor 64 to drive the blades 66 to rotate at different speeds with different powers, so that three different airflow speed grades of the low speed, the medium speed and the high speed are formed, the high speed is the largest, the medium speed is the second highest, and the low speed is the smallest.

When the hair dryer 100 is in the charging state, no matter what operation mode the hair dryer 100 is currently in, the main control board 90 controls the rechargeable 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 stops rotating.

When electric hair dryer 100 is being charged, handle 30 of electric hair dryer 100 can be taken out from charging socket 400 at any time, and when electric hair dryer 100 is taken out from charging socket 400, electric hair dryer 100 is out of charging state, and the working mode before charging is recovered.

When the hair dryer 100 is in use, the rechargeable batteries 51 are over-discharged, that is, when the main control board 90 detects that the voltage value of any rechargeable battery 51 is lower than the first preset voltage threshold value during the operation of the motor 64, the main control board 90 controls the heating module 80 to stop heating and the motor 64 to stop rotating. Specifically, when the first preset voltage threshold set by the main control board 90 is 2.7V, and the voltage value of any one of the rechargeable batteries 51 in the rechargeable battery assembly 50 detected by the main control board 90 is lower than 2.7V, the main control board 90 controls the rechargeable 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 display module 105 indicates the overdischarge state.

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

The voltage difference protection of the rechargeable batteries 51, that is, when the rechargeable batteries 51 are in a fully charged state and the main control board 90 detects that the voltage value of any rechargeable battery 51 is lower than a third preset voltage threshold, the main control board 90 controls the rechargeable batteries 51 to be inhibited from being charged and/or discharged. Specifically, the third preset voltage threshold set in the main control board 90 is 3.73V, when the rechargeable batteries 51 are in a fully charged state, if the main control board 90 detects that the voltage value of any rechargeable battery 51 is lower than 3.73V, it is determined that the voltage difference between the rechargeable batteries 51 is too large, charging and discharging of the rechargeable batteries 51 is prohibited, and a failure is locked, even if the main control board 90 is powered up again, the protection mode still enters.

The overuse protection of the rechargeable battery 51, that is, when the main control board 90 detects that the charging number of the rechargeable battery 51 is greater than the preset number threshold, the main control board 90 controls the rechargeable battery 51 to be prohibited from being charged and/or discharged. Specifically, the preset time threshold set by the main control board 90 is 1000 times, when the charging socket 400 charges the rechargeable battery 51, and the main control board 90 detects that the charging time of the rechargeable battery 51 is greater than 1000 times, the main control board 90 controls the rechargeable battery 51 to prohibit charging and/or discharging, determines that the rechargeable battery 51 is used excessively, prohibits charging and discharging of the rechargeable battery 51, and locks a fault, even if the main control board 90 is powered up again, the main control board still enters the protection mode.

When the electric hair drier 100 is in the hot air mode, when the main control board 90 detects that the voltage value of any one of the rechargeable batteries 51 is lower than the fourth preset voltage threshold value, the main control board 90 controls the heating module 80 to stop heating, and the motor 64 continues to work. The hot air mode means that the heating module 83 also operates to generate heat in a state where the motor 64 operates. Specifically, when the fourth preset voltage threshold set by the main control board 90 is 3.1V, and the electric hair dryer 100 is in the hot air mode, and when the main control board 90 detects that the voltage value of any one of the rechargeable batteries 51 is lower than 3.1V, the main control board 90 controls the heating module 83 to stop heating, and the motor 64 continues to work.

The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.

Claims

1. The utility model provides a wireless hair-dryer, its characterized in that, include the dryer, connect in the handle of dryer, rechargeable battery subassembly, fan subassembly to and main control board, the dryer is equipped with the air-out passageway, the handle is equipped with the intercommunication the inlet air duct of air-out passageway, rechargeable battery subassembly including set up in at least one rechargeable battery in the air-out passageway of dryer, the fan subassembly is including locating motor in the handle and connect in the fan blade of motor, main control board electric connection in rechargeable battery reaches the motor, rechargeable battery gives the motor reaches the main control board power supply, main control board control motor drive the fan blade is rotatory, makes the air current get into the inlet air duct warp the air-out passageway discharges the dryer.

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

3. The wireless hair dryer of claim 1, further comprising a charging socket, wherein the charging socket comprises a plug-in portion and a charging terminal arranged on the plug-in portion, the rechargeable battery assembly further comprises a charging connector arranged at the tail end of the handle, the charging connector is electrically connected to the main control board, the handle is inserted into the plug-in portion, the charging connector is electrically connected with the charging terminal, and the main control board controls the charging socket to charge the rechargeable battery.

4. The wireless hair dryer of claim 3, wherein the charging connector comprises a positive electrode tab and a negative electrode tab, the charging terminal comprises a positive electrode terminal and a negative electrode terminal, and the positive electrode tab and the negative electrode tab are electrically connected with the positive electrode terminal and the negative electrode terminal respectively when the charging socket charges the rechargeable battery.

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

6. The cordless hair dryer of claim 1, wherein the rechargeable battery assembly comprises a cell support, a plurality of rechargeable batteries are positioned in parallel spaced relation to the cell support, and a plurality of rechargeable batteries are connected in series.

7. The cordless hair dryer of claim 6, wherein the cell support comprises a connecting plate and a plurality of spaced support columns arranged on the connecting plate, a positioning ring is arranged between every two adjacent support columns, and the rechargeable batteries are respectively positioned in the corresponding positioning rings.

8. The wireless hair dryer of claim 6, wherein a positioning member is disposed on the cell support, and the main control board is fixedly connected to the positioning member, so that the main control board is parallel to the extending direction of the air inlet channel.

9. The cordless hairdryer of claim 6, wherein the rechargeable battery is parallel to a central axis of the air duct.

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

11. The wireless hair dryer of claim 1, further comprising a heating module electrically connected to the main control board, wherein the rechargeable battery is electrically connected to the heating module through the main control board.

12. The wireless hair dryer of claim 11, wherein the heating module comprises a heating module support connected to the rechargeable battery assembly and a heating module wound on the heating module support, the heating module is electrically connected to the main control board, and when the wireless hair dryer is in a hot air mode, the main control board controls the rechargeable battery assembly to supply power to the heating module.

13. The wireless hair dryer of claim 12, wherein the heat generating module further comprises a temperature probe electrically connected to the main control board, the temperature probe is adjacent to the heat generating module for measuring the temperature of the hot air flow near the heat generating module, and when the main control board detects that the temperature value of the hot air flow is higher than a preset temperature value through the temperature probe, the main control board controls the heat generating module to stop generating heat and/or the motor to stop rotating.

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

15. The wireless hair dryer of claim 3, wherein when the main control board detects that the voltage value of any rechargeable battery is higher than a second preset voltage threshold value during the process of charging the rechargeable battery by the charging socket, the main control board controls the charging socket to stop charging the rechargeable battery.

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 third preset voltage threshold value when the rechargeable battery is in a fully charged state, the main control board controls the rechargeable battery to be prohibited from being charged or discharged.

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

18. The wireless hair dryer of claim 11, wherein when the main control board detects that the voltage value of any rechargeable battery is lower than a fourth preset voltage threshold value during the hot air mode of the wireless hair dryer, the main control board controls the heating module to stop heating, and the motor continues to work.

19. The wireless hair dryer of claim 11, further comprising a switch module electrically connected to the main control board, wherein the main control board controls the operating state of the rechargeable battery, the motor and/or the heating module according to a received signal sent by the switch module.

20. The wireless hair dryer of claim 11, further comprising a display module electrically connected to the main control board, wherein the display module is used for displaying the charge amount and the charge state of the rechargeable battery.