Hair dryer

Abstract

The hair dryer comprises an air duct, a handle, a control panel and a power connection structure, the handle is rotationally connected to the first end of the air duct, and the control panel is arranged in the air duct and / or the handle; the power connection structure is arranged between the handle and the air duct and comprises a wiring ring and a cable, and the cable is connected with the control panel, is wired along the outer wall of the wiring ring and then is electrically connected with a functional element of the blower; the routing length of the cable along the outer wall of the routing ring is greater than or equal to the maximum rotation displacement of the routing ring synchronously rotating along with the handle or the air duct; the cable is arranged along the rotating track of the air duct or the handle by means of the wiring ring, and the wiring length of the cable along the outer wall of the wiring ring is long enough, so that sufficient wiring allowance can be provided for the rotating motion between the handle and the air duct; it is ensured that the cable arranged between the handle and the air duct cannot be broken due to large-amplitude rotation between the handle and the air duct.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a hair dryer. BACKGROUND

[0002] The hair dryer is mainly used for drying and shaping hair, and can also be used for local drying, heating and physiotherapy in laboratories, physiotherapy rooms, industrial production and graphic design. In order to facilitate the carrying of the hair dryer, foldable hair dryers have appeared on the market, that is, the handle and the air duct of the hair dryer are arranged in a rotary connection form. However, due to the large rotation range between the air duct and the handle of the hair dryer, the conventional wiring mode cannot support such a large rotation range between the air duct and the handle, which leads to the fact that the cable arranged between the handle and the air duct is prone to breakage. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a hair dryer which can avoid the breakage of the cable arranged between the handle and the air duct due to the large rotation range between the handle and the air duct.

[0004] A hair dryer comprises:

[0005] an air duct;

[0006] a handle rotatably connected to a first end of the air duct to unfold or fold the hair dryer, a second end of the air duct being provided with an air outlet, the first end of the air duct and / or the handle being provided with an air inlet on an end connected to the air duct, the air inlet and the air outlet being in communication to form an air duct;

[0007] a control panel arranged in the air duct and / or the handle; and

[0008] an electricity connection structure arranged between the handle and the air duct, the electricity connection structure comprising a wire ring and a cable, the cable being connected to the control panel and running along the outer wall of the wire ring and then being electrically connected to the functional elements of the hair dryer, the running length of the cable along the outer wall of the wire ring being greater than or equal to the maximum rotation displacement amount of the wire ring following the synchronous rotation of the handle or the air duct; wherein the functional elements of the hair dryer are arranged in the air duct and / or the handle.

[0009] In one of the embodiments, the control board includes two, the two control boards are a first control board and a second control board respectively, the wire routing ring includes two, the two wire routing rings are a first wire routing ring and a second wire routing ring respectively, the first wire routing ring and the second wire routing ring are oppositely arranged, the cable includes two, the two cables are a first cable and a second cable respectively, the first cable is connected to the first control board and routed along the outer wall of the first wire routing ring and then electrically connected to the low-voltage functional element of the hair dryer, the routing length of the first cable along the outer wall of the first wire routing ring is greater than or equal to the maximum rotational displacement amount of the first wire routing ring following the synchronous rotation of the handle or the air cylinder, the second cable is connected to the second control board and routed along the outer wall of the second wire routing ring and then electrically connected to the high-voltage functional element of the hair dryer, the routing length of the second cable along the outer wall of the second wire routing ring is greater than or equal to the maximum rotational displacement amount of the second wire routing ring following the synchronous rotation of the handle or the air cylinder.

[0010] In one of the embodiments, the power connection structure further includes a wire hole, the handle and / or the air cylinder is provided with the wire hole, the cable is connected to the control board and led out through the wire hole and routed along the outer wall of the wire routing ring and then electrically connected to the functional element of the hair dryer.

[0011] In one of the embodiments, the control board is arranged in the air cylinder, the air cylinder is provided with the wire hole, a wire routing channel is further arranged between the outer wall of the wire routing ring and the inner wall of the handle, the cable is connected to the control board and led out through the wire hole and routed along the outer wall of the wire routing ring and then enters the handle through the wire routing channel and is electrically connected to the functional element arranged in the handle.

[0012] In one of the embodiments, the first end of the air cylinder is provided with a first connecting head, one end of the handle is provided with a second connecting head rotationally connected with the first connecting head, the second connecting head is sleeved on the outside of the first connecting head, the second connecting head and / or the first end of the air cylinder is provided with the air inlet, the control board is arranged in the first connecting head and / or the second connecting head, and the power connection structure is arranged between the first connecting head and the second connecting head.

[0013] In one of the embodiments, the air duct comprises a first air duct half shell and a second air duct half shell connected oppositely, the handle comprises a first handle half shell and a second handle half shell connected oppositely, the first connector is composed of two first half connectors connected with the first air duct half shell and the second air duct half shell respectively, the second connector is composed of two second half connectors connected with the first handle half shell and the second handle half shell respectively, the two first half connectors are spliced together, a gap is arranged between the two second half connectors, and the two first half connectors are rotatably embedded between the two second half connectors.

[0014] In one of the embodiments, the hair dryer further comprises a heating assembly and a blowing assembly, both of which are arranged in the air duct, and the heating assembly is arranged closer to the air outlet than the blowing assembly.

[0015] In one of the embodiments, when the opening angle between the handle and the air duct reaches a preset value, the unfolded hair dryer can be supported on an operation platform without the aid of external force.

[0016] In one of the embodiments, at least one of the following technical solutions is further included:

[0017] The handle and the air duct are connected in a damping manner;

[0018] The opening angle between the handle and the air duct is 0-210°.

[0019] In one of the embodiments, the connecting end of the handle and the air duct is further provided with a through hole, and the through hole is arranged close to the air inlet.

[0020] The hair dryer provided by the application can be opened by rotating the handle and the air duct with both hands, and then operated like a traditional hair dryer. After use, the hair dryer can be folded by rotating the handle and the air duct with both hands, which saves space and is convenient for travel. The reliability in use and the foldable feature when not in use reflect the compact structure of the hair dryer. In addition, the cable is routed along the rotation track of the air duct or the handle with the help of the routing ring, and the routing length of the cable along the outer wall of the routing ring is long enough (specifically greater than or equal to the maximum rotation displacement amount of the routing ring following the synchronous rotation of the handle or the air duct), so that sufficient routing allowance can be provided for the rotation movement between the handle and the air duct, ensuring that the cable routed between the handle and the air duct will not be broken due to the large rotation between the handle and the air duct. In addition, the routing ring is used to route the cable to connect the control panel and the functional elements of the hair dryer, so that the routing is more organized, the cable will not be accumulated compared with the traditional way, the circuit is more beautiful, and the circuit is also convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a sectional view of the hair dryer in an embodiment;

[0023] Figure 2 is a structural schematic view of the hair dryer in an embodiment;

[0024] Figure 3 is a partial sectional view of the hair dryer in an embodiment;

[0025] Figure 4 is a partial structural schematic view of the hair dryer in an embodiment;

[0026] Figure 5 is an exploded view of the air duct of the hair dryer in an embodiment;

[0027] Figure 6 is an exploded view of the handle of the hair dryer in an embodiment. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0030] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three schemes, for example, A and / or B includes A technical solution, B technical solution, and A and B simultaneously meet the technical solution; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0031] As shown in Figures 1 to 3 The present application provides a hair dryer, which comprises a wind tube 100, a handle 200, a control panel 600 and an electricity connection structure 700. The handle 200 is rotatably connected to the first end of the wind tube 100 to unfold or fold the hair dryer. The second end of the wind tube 100 is provided with an air outlet 110. The first end of the wind tube 100 and / or the end of the handle 200 connected to the wind tube 100 is provided with an air inlet 120. The air inlet 120 and the air outlet 110 are in communication to form an air duct 130. The control panel 600 is arranged in the wind tube 100 and / or the handle 200. The control panel 600 can be a PCB. The electricity connection structure 700 is arranged between the handle 200 and the wind tube 100. The electricity connection structure 700 comprises a wire ring 720 and a cable. The cable is connected to the control panel 600 and is wired along the outer wall of the wire ring 720 and then is electrically connected to the functional elements of the hair dryer. The wiring length of the cable along the outer wall of the wire ring 720 is greater than or equal to the maximum rotation displacement amount of the wire ring 720 following the synchronous rotation of the handle 200 or the wind tube 100. The functional elements of the hair dryer are arranged in the wind tube 100 and / or the handle 200.

[0032] The hair dryer provided in the application can be opened by rotating the handle 200 and the air duct 100 with both hands, and then operated like a traditional hair dryer. After use, the handle 200 and the air duct 100 can be rotated and combined with both hands to realize folding to save space, facilitate travel and carrying, etc. The reliability in use and the folding feature when not in use reflect the compact advantage of the hair dryer structure. In addition, since the cable is routed along the rotation track of the handle 200 or the air duct 100 by means of the routing ring 720, and the routing length of the cable along the outer wall of the routing ring 720 is long enough (specifically greater than or equal to the maximum rotation displacement amount of the routing ring 720 following the synchronous rotation of the handle 200 or the air duct 100), sufficient routing allowance can be provided for the rotation movement between the handle 200 and the air duct 100, ensuring that the cable routed between the handle 200 and the air duct 100 will not be broken due to the large rotation between the handle 200 and the air duct 100. In addition, the control panel 600 and the functional elements of the hair dryer are connected by routing through the routing ring 720, which makes the routing more organized, does not allow the cable to accumulate compared with the traditional way, makes the circuit more beautiful, and is also convenient for maintaining the circuit.

[0033] As shown in Figure 3 Optionally, the control panel 600 includes two, the two control panels 600 are respectively a first control panel and a second control panel, the routing ring 720 includes two, the two routing rings 720 are respectively a first routing ring and a second routing ring, the first routing ring and the second routing ring are oppositely arranged, the cable includes two, the two cables are respectively a first cable and a second cable, the first cable is connected to the first control panel and routed along the outer wall of the first routing ring and then electrically connected to the low-voltage functional elements of the hair dryer, the routing length of the first cable along the outer wall of the first routing ring is greater than or equal to the maximum rotation displacement amount of the first routing ring following the synchronous rotation of the handle 200 or the air duct 100, the second cable is connected to the second control panel and routed along the outer wall of the second routing ring and then electrically connected to the high-voltage functional elements of the hair dryer, the routing length of the second cable along the outer wall of the second routing ring is greater than or equal to the maximum rotation displacement amount of the second routing ring following the synchronous rotation of the handle 200 or the air duct 100.

[0034] Specifically, the low-voltage functional elements of the hair dryer can include a sensor device, which can include a displacement sensor and / or an infrared sensor. The displacement sensor is used to obtain the distance characteristic quantity of the hair dryer and the target object. The infrared sensor is used to obtain the temperature characteristic quantity of the target object. The target object refers to the object of hair drying, which is hair in general, and can also be related objects for local drying, heating and physiotherapy in laboratory and industrial production, graphic design, etc.

[0035] The high-voltage functional element of the hair dryer can include a heating assembly 300 for heating the flowing gas flowing through the air duct 130 and / or a blowing assembly 400 for sucking the flowing gas into the air duct 130 through the air inlet 120 and then flowing out of the air outlet 110 after being heated or not by the heating assembly 300. By configuring the first control board and the second control board, and the first wire ring and the second wire ring corresponding to the first control board and the second control board, the synchronous power connection use requirements of the different voltage functional elements of the hair dryer can be met.

[0036] As shown in Figure 3 Further, the power connection structure 700 further includes wire holes 730, the handle 200 and / or the air cylinder 100 are provided with the wire holes 730, the cable connected to the control board 600 is led out through the wire holes 730 and then is wired along the outer wall of the wire ring 720 and then is electrically connected to the functional element of the hair dryer. Further, the wire holes 730 include two, the two wire holes 730 are respectively a first wire hole and a second wire hole, the first cable connected to the first control board is led out through the first wire hole and then is wired along the outer wall of the first wire ring and then is electrically connected to the functional element of the hair dryer, and the second cable connected to the second control board is led out through the second wire hole and then is wired along the outer wall of the second wire ring and then is electrically connected to another functional element of the hair dryer.

[0037] Further, the control board 600 is arranged in the air cylinder 100, the air cylinder 100 is provided with the wire holes 730, and a wire channel is further arranged between the outer wall of the wire ring 720 and the inner wall of the handle 200, the cable connected to the control board 600 is led out through the wire holes 730 and then is wired along the outer wall of the wire ring 720 and then enters the handle 200 along the wire channel and is electrically connected to the functional element arranged in the handle 200.

[0038] Further, the air cylinder 100 is provided with the first wire ring and the second wire ring on the opposite sides thereof, and the air cylinder 100 is further provided with the first wire hole and the second wire hole on the opposite sides thereof, a first wire channel is arranged between the first wire ring and the inner wall of the handle 200, and a second wire channel is arranged between the second wire ring and the opposite inner wall of the handle 200, the first cable connected to the first control board is led out through the first wire hole and then is wired along the outer wall of the first wire ring and then enters the handle 200 along the first wire channel and is electrically connected to the functional element arranged in the handle 200, and the second cable connected to the second control board is led out through the second wire hole and then is wired along the outer wall of the second wire ring and then enters the handle 200 along the second wire channel and is electrically connected to another functional element arranged in the handle 200. Specifically, the first cable is used to electrically connect the low-voltage functional element in the handle 200, and the second cable is used to electrically connect the high-voltage functional element in the handle 200.

[0039] As shown in Figure 4As shown, further, the first end of the air duct 100 is provided with a first connector 160, one end of the handle 200 is provided with a second connector 170 rotatably connected with the first connector 160, the second connector 170 is sleeved outside the first connector 160, the second connector 170 and / or the first end of the air duct 100 is provided with an air inlet 120, the control board 600 is arranged in the first connector 160 and / or the second connector 170, and the wire loop 720 is arranged between the first connector 160 and the second connector 170.

[0040] As shown, in an embodiment, the control board 600 is arranged in the first connector 160, the wire loop 720 is arranged at one side of the first connector 160, the first connector 160 is provided with a wire hole 730, the cable connected with the control board 600 is led out through the wire hole 730 and is wired along the outer wall of the wire loop 720, and then enters the inside of the handle 200 along the wire channel and is electrically connected with the functional element arranged in the handle 200. In an alternative embodiment, the functional element arranged in the handle 200 can include a third control board 250, and the third control board 250 can be a PCB board. Figure 3

[0041] Further, the opposite sides of the first connector 160 are respectively provided with a first wire hole and a second wire hole, the opposite sides of the first connector 160 are respectively provided with a first wire loop and a second wire loop, a first wire channel is arranged between the first wire loop and the inner wall of the handle 200, a second wire channel is arranged between the second wire loop and the opposite inner wall of the handle 200, the cable includes two, and the two cables are respectively a first cable and a second cable, the first cable connected with the first control board is led out through the first wire hole and is wired along the outer wall of the first wire loop, and then enters the inside of the handle 200 along the first wire channel and is electrically connected with the functional element arranged in the handle 200, and the second cable connected with the second control board is led out through the second wire hole and is wired along the outer wall of the second wire loop, and then enters the inside of the handle 200 along the second wire channel and is electrically connected with another functional element arranged in the handle 200.

[0042] In an embodiment, when the opening angle between the handle 200 and the air duct 100 reaches a preset value, the unfolded hair dryer can be supported on an operation platform (such as a desktop) without the aid of external force, so that the hair dryer can be completely separated from both hands during use, and the user can free both hands to better perform other operations.

[0043] ​In an optional embodiment, the handle 200 and the air duct 100 are connected in a damping rotation mode. Since the handle 200 and the air duct 100 are connected in a damping rotation mode, when the user rotates the handle 200 relative to the air duct 100 to any angle, the handle 200 and the air duct 100 can be maintained at the angle under the action of the damping force generated by the damping rotation, thereby realizing the arbitrary adjustment of the opening angle between the handle 200 and the air duct 100.

[0044] In an optional embodiment, the opening angle between the handle 200 and the air duct 100 (i.e., the rotation angle of the handle 200 relative to the air duct 100) is 0-210°. It should be noted that when the handle 200 and the air duct 100 are completely folded, the handle 200 and the air duct 100 are parallel to each other, and in this state, the opening angle between the handle 200 and the air duct 100 is 0°.

[0045] As shown in FIG. 1, Figure 5 Further, the handle 200 and the air duct 100 are provided with a positioning ring 140, which is used to limit the rotation of the handle 200 relative to the air duct 100, so as to prevent the abnormal folding or excessive rotation of the hair dryer due to the excessive external force used by the user.

[0046] As shown in FIG. 1, Figure 3 In an embodiment, the air duct 130 is arranged in the air duct 100, and the first end of the air duct 100 and the end of the air duct 100 connected with the handle 200 are both provided with an air inlet 120. In this way, the air inlet amount of the air duct 130 can be effectively increased, the air inlet efficiency is improved, the air outlet amount of the hair dryer is increased, and the flowing gas can be provided for the components arranged in the air duct 130, so as to avoid the heat accumulation in the air duct 130.

[0047] As shown in FIG. 1, Figure 4 In an embodiment, the connecting end of the handle 200 and the air duct 100 is further provided with a through hole 150, and the through hole 150 is arranged adjacent to the air inlet 120. By arranging the through hole 150 on the connecting end of the handle 200 and the air duct 100 and arranging the through hole 150 adjacent to the air inlet 120, the through hole 150 can not only achieve the noise reduction effect during the air inlet, but also can be hung on the external supporting column after use, so as not to occupy the space of the operation platform and to be convenient to use. Optionally, the first connecting head 160 and the second connecting head 170 are both provided with the through hole 150.

[0048] In an embodiment, the second connecting head 170 and the first end of the air duct 100 are both provided with the air inlet 120, the air inlet 120 on the first end of the air duct 100 is arranged in a hidden mode, and the air inlet 120 on the second connecting head 170 is arranged around the through hole 150.

[0049] As shown in FIG. 1, Figures 4 to 6As shown, further, the air duct 100 comprises a first air duct half-shell 101 and a second air duct half-shell 102 connected oppositely, the handle 200 comprises a first handle half-shell 201 and a second handle half-shell 202 connected oppositely, the first connecting head 160 is composed of two first half-connecting heads 161 connected with the first air duct half-shell 101 and the second air duct half-shell 102 respectively, the second connecting head 170 is composed of two second half-connecting heads 171 connected with the first handle half-shell 201 and the second handle half-shell 202 respectively, the two first half-connecting heads 161 are spliced together, a gap is arranged between the two second half-connecting heads 171, and the two first half-connecting heads 161 are rotatably embedded between the two second half-connecting heads 171. Specifically, the air duct 130 is arranged in the first air duct half-shell 101 and the second air duct half-shell 102, the wire channel is arranged between the wire ring 720 and the inner walls of the first handle half-shell 201 and the second handle half-shell 202, the two first half-connecting heads 161 are integrally formed with the first air duct half-shell 101 and the second air duct half-shell 102 respectively, and the two second half-connecting heads 171 are integrally formed with the first handle half-shell 201 and the second handle half-shell 202 respectively. The first air duct half-shell 101 and the second air duct half-shell 102 are both provided with the air inlet 120 at the end away from the air outlet 110, and the two second half-connecting heads 171 are both provided with the air inlet 120.

[0050] As shown in Figure 5 and Figure 6 shown, optionally, the air duct 100 further comprises an air duct shell 103, the air duct shell 103 is sleeved on the outside of the first air duct half-shell 101 and the second air duct half-shell 102, and the handle 200 further comprises a handle shell 203, the handle shell 203 is sleeved on the outside of the first air duct half-shell 101 and the second air duct half-shell 102.

[0051] As shown in Figure 2 shown, further, the hair dryer further comprises a heating assembly 300 and a blowing assembly 400, the heating assembly 300 and the blowing assembly 400 are both arranged in the air duct 130, and the heating assembly 300 is arranged closer to the air outlet 110 than the blowing assembly 400, the heating assembly 300 is used for heating the flowing gas flowing through the air duct 130, and the blowing assembly 400 is used for sucking the flowing gas into the air duct 130 through the air inlet 120, and then the flowing gas flows out of the air outlet 110 after being heated or not heated by the heating assembly 300.

[0052] As shown in Figure 5As shown, the heating assembly 300 comprises a heating frame 310 and first and second mica plates 320 and 330 arranged on both sides of the heating frame 310, the heating frame 310 can be a ceramic-coated heating body, and the first and second mica plates 320 and 330 are arranged along the axial direction of the heating frame 310. The heating assembly 300 comprises a heat insulation sleeve 340, which is sleeved on the outside of the heating frame 310, the first mica plate 320 and the second mica plate 330. The blowing assembly 400 comprises a fan 410, which can be an axial fan, and specifically, the axial fan can adopt a small-size ultra-high-speed brushless motor. Further, the blowing assembly 400 further comprises a shockproof sleeve 420, such as a silica gel sleeve, which is sleeved on the outside of the fan 410 to reduce the vibration of the fan 410 during operation.

[0053] As shown in the drawings, Figure 5 Further, the hair dryer further comprises an air outlet net 500 arranged at the air outlet 110 of the air duct 100. Further, the heating assembly 300 and the blowing assembly 400 are electrically connected with the control panel 600, and the control panel 600 is used to control the operation of the heating assembly 300 and the blowing assembly 400.

[0054] Further, the control panel 600 is electrically connected with a cold-hot switching button 610, a wind speed button 620 for controlling the wind speed of the hair dryer to increase or decrease, and an indicator light 630, and the cold-hot switching button 610, the wind speed button 620 and the indicator light 630 are installed on the first connecting head 160, and specifically, the cold-hot switching button 610, the wind speed button 620 and the indicator light 630 are installed at the abutting position of the two first half connecting heads 161 of the first connecting head 160.

[0055] As shown in the drawings, Figure 6 As shown, the air inlet 120 of the handle 200 is provided with a first filter screen 210 for preventing hair or other foreign matters from being sucked into the air duct 130. In order to further improve the filtering effect of hair or other foreign matters, a second filter screen 220 is further arranged between the air inlet 120 of the handle 200 and the first filter screen 210 for preventing hair or other foreign matters from being sucked into the air duct 130, and the flowing gas can enter the air duct 130 through the air inlet 120 of the handle 200 after being filtered by the first filter screen 210 and the second filter screen 220 in sequence. Preferably, the part where the air inlet 120 of the handle 200 is located (i.e. the second connecting head 170) is in the shape of a horn with the outside larger than the inside; the first filter screen 210 and the second filter screen 220 are both in the shape of a horn matching the part where the air inlet 120 of the handle 200 is located, so as to better increase the air inlet area.

[0056] As shown in the drawings, Figure 6As shown, further, the hair dryer further comprises a fixing assembly 230, the fixing assembly 230 is used for fixing the second filter screen 220 at the position where the air inlet 120 of the handle 200 is located. Specifically, the fixing assembly 230 can be a magnetic attraction fixing assembly 230, which is arranged between the air inlet 120 of the handle 200 and the first filter screen 210, and comprises a plurality of magnets 231 and a metal ring 232. The plurality of magnets 231 are arranged at intervals at the position where the air inlet 120 of the handle 200 is located. Specifically, the magnets 231 can be fixed at the position where the air inlet 120 of the handle 200 is located by means of adhesion (for example, adhesive bonding). The metal ring 232 can be an iron ring, which is used for magnetic attraction with each magnet 231 to press and fix the second filter screen 220 at the position where the air inlet 120 of the handle 200 is located.

[0057] As shown, Figure 6 further, the hair dryer further comprises a power supply module 240, which can be a battery. The power supply module 240 is arranged in the handle 200 and is electrically connected with each power-consuming structure (for example, the blowing assembly 400 and the heating assembly 300) of the hair dryer. The power supply module 240 is used for supplying power to each power-consuming structure of the hair dryer.

[0058] Further, the hair dryer further comprises a third control board 250, which can be a PCB board. The third control board 250 is arranged in the handle 200 and is electrically connected with the control board 600 in the air duct 100. Specifically, the power supply module is electrically connected with the third control board 250. Further, the third control board 250 is electrically connected with a switch button for controlling the opening and closing of the hair dryer, and the switch button is installed on the handle 200.

[0059] As shown, Figure 5 further, the second end of the air duct 100 is further provided with a ventilation hole 104. Specifically, the ventilation hole 104 is in communication with the air duct 130 in the air duct 100. The ventilation hole 104 comprises a plurality of ventilation holes 104, which are arranged at intervals along the circumference of the second end of the air duct 100. The ventilation hole 104 is used for improving the heat dissipation effect of the air duct 100 and avoiding the air duct 100 from being too hot to hold.

[0060] As shown, Figure 6 further, the end of the handle 100 away from the air duct 100 is provided with an air inlet 120. Specifically, the air inlet 120 is in communication with the air duct 130 in the handle 200. In this way, the air inlet amount of the end of the handle 100 can be effectively increased, and at the same time, the components (for example, the power supply module 240) arranged in the handle 100 can be provided with flowing gas to avoid overheating of the components in the handle 100.

[0061] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the inventive concept of the present application, as described in the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A hair dryer, characterized in that: include: hair dryer; A handle is rotatably connected to the first end of the hair dryer to unfold or fold the hair dryer, the second end of the hair dryer is provided with an air outlet, the first end of the hair dryer and / or the end of the handle connected to the hair dryer is provided with an air inlet, the air inlet is connected to the air outlet to form an air duct; A control panel is provided in the air duct and / or the handle; as well as An electrical connection structure is arranged between the handle and the hair dryer, and the electrical connection structure includes a wiring ring and a cable. The cable is connected to the control panel and is routed along the outer wall of the wiring ring and then electrically connected to the functional components of the hair dryer. The routing length of the cable along the outer wall of the wiring ring is greater than or equal to the maximum rotational displacement of the wiring ring that rotates synchronously with the handle or the hair dryer; wherein the functional components of the hair dryer are arranged in the hair dryer and / or the handle.

2. The hair dryer according to claim 1, characterized in that The control panels include two, which are respectively a first control panel and a second control panel; the wiring rings include two, which are respectively a first wiring ring and a second wiring ring; the first wiring ring and the second wiring ring are arranged opposite to each other; the cables include two, which are respectively a first cable and a second cable; the first cable is connected to the first control panel and is routed along the outer wall of the first wiring ring and then electrically connected to the low-voltage functional element of the hair dryer; the routing length of the first cable along the outer wall of the first wiring ring is greater than or equal to the maximum rotational displacement of the first wiring ring following the synchronous rotation of the handle or the hair dryer; the second cable is connected to the second control panel and is routed along the outer wall of the second wiring ring and then electrically connected to the high-voltage functional element of the hair dryer; the routing length of the second cable along the outer wall of the second wiring ring is greater than or equal to the maximum rotational displacement of the second wiring ring following the synchronous rotation of the handle or the hair dryer 3. The hair dryer according to claim 1, wherein The power connection structure also includes a wire hole, and the handle and / or the hair dryer are provided with the wire hole. The cable connected to the control panel is led out through the wire hole and routed along the outer wall of the wiring ring and then electrically connected to the functional components of the hair dryer.

4. The hair dryer according to claim 3, characterized in that The control panel is arranged in the air duct, and the air duct is provided with the wire hole. A wiring channel is also provided between the wiring ring and the inner wall of the handle. The cable connected to the control panel is led out through the wire hole and routed along the outer wall of the wiring ring, and then enters the interior of the handle along the wiring channel and is electrically connected to the functional elements arranged in the handle.

5. The hair dryer according to claim 1, wherein The first end of the hair dryer is provided with a first connector, one end of the handle is provided with a second connector rotatably connected to the first connector, the second connector is sleeved on the outside of the first connector, the second connector and / or the first end of the hair dryer are provided with the air inlet, the control panel is provided in the first connector and / or the second connector, and the power connection structure is provided between the first connector and the second connector.

6. The hair dryer according to claim 5, characterized in that The hair dryer includes a first hair dryer half shell and a second hair dryer half shell connected to each other, the handle includes a first handle half shell and a second handle half shell connected to each other, the first connecting head is composed of two first half joints, the two first half joints are respectively connected to the first hair dryer half shell and the second hair dryer half shell, the second connecting head is composed of two second half joints, the two second half joints are respectively connected to the first handle half shell and the second handle half shell, the two first half joints are spliced ​​into one body, a gap is provided between the two second half joints, and the two first half joints are rotatably embedded between the two second half joints.

7. The hair dryer according to claim 1, wherein The hair dryer further includes a heating component and a blowing component. Both the heating component and the blowing component are arranged in the air duct, and the heating component is arranged closer to the air outlet than the blowing component.

8. The hair dryer according to claim 1, wherein When the opening angle between the handle and the hair dryer reaches a preset value, the unfolded hair dryer can be supported on the operating platform without the help of external force.

9. The hair dryer according to claim 1, wherein Also includes at least one of the following technical solutions: The handle and the air cylinder are connected in a damping rotation manner; The opening angle between the handle and the air cylinder is 0-210 degrees.

10. The hair dryer according to claim 1, wherein The connecting end of the handle and the air cylinder is further provided with a through hole, and the through hole is arranged adjacent to the air inlet.

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