A flat heating low-noise hair dryer

Abstract

The present invention discloses a flat heating low-noise hair dryer, comprising a fuselage assembly, wherein the fuselage assembly comprises an air inlet, an air outlet head, and a handle extending from the air inlet to the air outlet head; an air outlet motor is arranged in the fuselage assembly, the air outlet motor is located near the joint position of the handle and the air outlet head, and the air outlet motor is far away from the air inlet; a non-metallic material flat heating device is arranged in the air outlet head, and the non-metallic material flat heating device comprises a heating element assembly and an air duct structure assembly; the flat heating low-noise hair dryer is a complete machine structure. The air outlet motor can be arranged near the joint position of the handle and the air outlet head, thereby effectively reducing the air outlet loss of the hair dryer, and the air outlet motor is far away from the air inlet, which can effectively reduce the wind noise of the motor; and the non-metallic material flat heating device is used to directly convert electrical energy into thermal energy by conducting electricity; the heat conversion efficiency is high, the heat loss is small, and energy is saved.

Description

Technical Field

[0001] The invention relates to a hair dryer, in particular to a flat-surface heating low-noise hair dryer. Background Art

[0002] As a drying device, a hair dryer generates heat mainly through an electric heating element and is mainly used for drying and shaping hair.

[0003] With the development of the times, people have more and more requirements for hair dryers. The current traditional hair dryers have large air loss and high motor noise when blowing out air; and the heating elements of the hair dryers commonly seen on the market are mainly wound with iron-chromium wire or nickel-chromium wire, which have low heating efficiency, are easy to oxidize and deform, and have a short lifespan.

[0004] Therefore, it is necessary to design a new flat heating low-noise hair dryer. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a flat heating low-noise hair dryer, which can arrange the air outlet motor near the joint between the handle and the air outlet head, thereby effectively reducing the air outlet loss of the hair dryer. At the same time, the air outlet motor is far away from the air inlet, which can effectively reduce the wind noise of the motor; and a non-metallic material flat heating device is used to directly convert electrical energy into thermal energy by conductive means; the heat conversion efficiency is high, the heat loss is small, and energy is saved.

[0006] In order to solve the above technical problems, the present invention provides a flat heating low-noise hair dryer, including a body assembly, wherein the body assembly includes an air inlet, an air outlet head and a handle extending from the air inlet to the air outlet head; an air outlet motor is arranged in the body assembly, the air outlet motor is located at the proximal end of the joint position between the handle and the air outlet head, and the air outlet motor is far away from the air inlet; a heating element assembly and an air duct structure assembly are arranged in the air outlet head; the flat heating low-noise hair dryer is a complete structure.

[0007] Preferably, the heating element assembly is composed of a non-metallic conductive heating material, a high-temperature adhesive and a high-temperature resistant insulating material mixed and formulated according to resistance values; the non-metallic conductive heating material contains graphene and PI carbon fiber, and the heating temperature of the non-metallic conductive heating material is greater than 200°C.

[0008] Preferably, the air duct structure component is made of metal or ceramic material; and a compression air duct structure is arranged in the air duct structure component.

[0009] Preferably, the shapes of the compression air duct structure include arc form, convex form, L form, S form, lotus funnel form, rotating sinusoidal wave form, diamond form, wedge form, V-shaped compression type, multi-layer type, multi-layer funnel type, multi-layer flower type, multi-layer staggered honeycomb type, multi-layer wave type, spiral blade type, multi-layer bowl type, spiral blade solid type and spiral surface petal type.

[0010] Preferably, two mutually insulated conductive silver electrodes are provided on the air duct structure component; and the heating element component is connected to the conductive silver electrodes of the air duct structure component.

[0011] Preferably, the heating element assembly is provided with an insulating protective layer, a heating layer and an insulating fixing layer in sequence; the thickness of the heating layer is set to 0.001 to 1 mm; the heating temperature of the heating layer can be adjusted in the range of room temperature to 600°C; after the heating element assembly is powered on, electrical energy is directly converted into thermal energy, and the conversion efficiency is greater than 60%.

[0012] Preferably, the heating element assembly can emit far infrared rays which are beneficial to the human body, and the wavelength of the far infrared rays is 4 to 15 um.

[0013] Preferably, the fixing methods of the heating element assembly and the air duct structure assembly include coating, spraying, printing and interlayer; at least one side of the heating element assembly is provided with a non-metallic conductive heating material coating; the difference between the wind resistance of the heating wire method and the wind resistance of the air duct structure assembly is at least 20%, and the air is in full contact with the air duct assembly and the heating element assembly.

[0014] Preferably, the flat-heating low-noise hair dryer comprises a heating element fixing assembly, wherein the heating element fixing assembly is arranged between the heating element assembly and the air duct structure assembly; the heating element fixing assembly comprises a fixing piece and a fixing bracket.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention arranges the air outlet motor near the joint between the handle and the air outlet head, so that the structure effectively reduces the air outlet loss of the motor; the air outlet motor is far away from the air inlet, which can effectively reduce the wind noise of the motor.

[0017] 2. The present invention arranges a non-metallic material flat heating device in the air outlet head, so that the air is fully in contact with the non-metallic material heating surface, the wind speed is faster, and the heat is increased more; the heat conversion efficiency is high, the heat loss is small, and energy is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the technical description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a flat-surface heating low-noise hair dryer.

[0020] Figure 2 It is a structural schematic diagram of a non-metallic conductive heating material;

[0021] Figure 3 to Figure 21 It is a structural schematic diagram of the heating element assembly;

[0022] Fig. 22 It is a schematic diagram of the assembly of the heating fixing component;

[0023] Fig.23 It is a schematic diagram of the structure of the heating fixing component;

[0024] Fig.24 This is a schematic diagram of a flattened non-metallic conductive heating material with a diameter of 1 mm;

[0025] Fig.25 Schematic diagram of the air mixing heating process of the flat heating device.

[0026] Among them, 201 is an air outlet head, 202 is an air outlet motor, and 203 is a handle;

[0027] 101-insulating protective layer, 102-heating layer, 103-insulating fixing layer, 104-air duct structural component fixing layer, 105-non-metallic conductive heating material;

[0028] 106-L-shaped protrusion, 107-S-shaped protrusion, 108-straight-inserted bevel-shaped protrusion, 109-fancy funnel-shaped, 110-rotating sinusoidal waveform, 111-diamond-shaped, 112-wedge-shaped, 113-V-shaped compression, 114-multi-layer, 115-multi-layer funnel-shaped, 116-multi-layer fancy, 117-multi-layer staggered honeycomb, 118-multi-layer wave, 119-spiral blade, 120-multi-layer bowl; 121-spiral blade solid, 122-spiral petal-shaped.

[0029] Heater fixing assembly, 2-heater group, 3-raised portion, 21-heater assembly, 23-air duct structure assembly 23, 30-second bending portion, 31-fixed bracket, 32-first bending portion, 33-temperature control switch, 34-fixing part, 35-fuse, 36-cavity, 37-second supporting plate, 38-first supporting plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0031] Figure 1 to Figure 25 As shown, the present invention discloses a flat-surface heating low-noise hair dryer.

[0032] Reference Figure 1 :

[0033] The above-mentioned flat heating low-noise hair dryer is a complete machine structure.

[0034] The flat heating low-noise hair dryer comprises a body assembly, which comprises an air inlet, an air outlet head, and a handle extending from the air inlet to the air outlet head.

[0035] An air outlet motor is arranged in the fuselage assembly. The air outlet motor is located near the joint position between the handle part and the air outlet head, and is far away from the air inlet part.

[0036] A non-metallic flat heating device is arranged in the air outlet head.

[0037] Preferably, the air outlet motor is arranged near the joint between the handle and the air outlet head, so as to effectively reduce the air outlet loss of the hair dryer. At the same time, the air outlet motor is far away from the air inlet, which can effectively reduce the wind noise of the motor. A non-metallic planar heating device is used to directly convert electrical energy into thermal energy by conductive means. The heat conversion efficiency is high, the heat loss is small, and energy is saved.

[0038] Further preferably, the heating element assembly 21 and the air duct structure assembly 23. The heating element assembly 21 is fixed on the air duct structure assembly 23.

[0039] The heating element assembly is composed of a non-metallic conductive heating material, a high temperature adhesive and a high temperature resistant insulating material, which are mixed and formulated into a required resistance value.

[0040] The above-mentioned non-metallic conductive heating material includes carbon materials such as graphene and PI carbon fiber, and its heating temperature can exceed 200°C.

[0041] The air duct structure component has two mutually insulated conductive silver electrodes, and the heating element component is connected to the conductive silver electrodes of the air duct structure component.

[0042] Reference Figure 2 :

[0043] The above-mentioned heating element assembly is provided with an insulating protective layer 101, a heating layer 102 and an insulating fixing layer 103 in sequence. The thickness of the heating layer 102 is set to 0.001-1 mm, and the heating temperature of the heating layer 102 can be adjusted in the range of room temperature to 600°C. The thickness of the corresponding heating layer is adjusted according to different heating resistance values. The above-mentioned heating layer 102 is made of a non-metallic conductive heating material, and the heating layer 102 is attached to the insulating fixing layer 103. After the heating element assembly is powered on, the non-metallic conductive heating material 105 can be used to directly convert electrical energy into thermal energy, and the conversion efficiency can reach more than 60%.

[0044] Preferably, the heating element assembly 21 simultaneously radiates 4 to 15 micron far infrared rays which are beneficial to the human body and have the effects of improving immune function, hair care, beauty, improving blood circulation and other health care and therapeutic effects.

[0045] Reference Fig.24 :

[0046] Preferably, the above-mentioned non-metallic conductive heating material 105 has a higher heating efficiency than the traditional PTC heating wire and MCH ceramic heating body.

[0047] Assume that the heating wire has a diameter of 1 mm and a length of L. Only the surface is the effective heating surface, so the effective heating area is 3.14L.

[0048] If the non-metallic conductive heating material 105 with a diameter of 1 mm is flattened into several layers of heating layers 102 with a thickness of 10 um, and roughly calculated as 50 layers, the heating area = 3.14L + 3.14*(1-0.01) + 3.14*(1-0.02) + 3.14*(1-0.03) + ..., as can be seen from the above estimation, the 1 mm non-metallic conductive heating material 105 heating layer 102 (and double-sided heating) has an effective heating area much larger than the 1 mm diameter heating wire, and its heating efficiency is higher.

[0049] At least one side of the heating element assembly 21 is provided with a non-metallic conductive heating material coating. The heating element assembly 21 and the air duct structure assembly 23 can be bonded and fixed by coating, spraying, printing and other processes, and can also be fixed by interlayer. The air duct structure assembly has a wind resistance of more than 20% less than the electric heating wire method, and the air and the air duct are in full contact, the temperature rise is fast, the heat loss is small, the heat conversion efficiency is high, and energy is saved. It can be used for hair dryers, electric heaters, dryers, air conditioners, heaters, water heaters and other products, and can also be used in other low-voltage heating occasions.

[0050] The air duct structure component is made of metal or ceramic material, and a compression air duct structure is arranged inside the air duct structure component.

[0051] Reference Figure 3 to Figure 21 :

[0052] The shapes of the above-mentioned compression air duct structure include but are not limited to arc form, convex form, L form, S form, lotus funnel form 109, rotating sinusoidal wave form 110, diamond form 111, wedge form 112, V-shaped compression form 113, multi-layer form 114, multi-layer funnel form 115, multi-layer fancy form 116, multi-layer staggered honeycomb form 117, multi-layer wave form 118, spiral blade form 119, multi-layer bowl form 120, spiral blade solid form 121, and spiral surface petal form 122.

[0053] Preferably, other similar shapes are also within the scope of protection of this patent.

[0054] The above-mentioned compressed air duct structure can change the direction of air outlet, causing the air to rotate and compress in the air duct, close to the non-metallic conductive heating material, forming mixed heating, effectively taking away the heat generated by the non-metallic conductive heating material, significantly increasing the air outlet temperature, achieving the effect of hot air drying hair, making the wind speed faster and the heating element more practical.

[0055] The multi-layer type 114 may have two or more layers.

[0056] A protrusion 3 for guiding air and improving heating efficiency is protruded from the outer wall of the compression air duct structure. The protrusion 3 is composed of a plurality of protrusions arranged in an array along the circumference of the outer wall of the compression air duct structure. The outer surface of each protrusion is coated with a non-metallic conductive heating coating.

[0057] The protrusions 3 include but are not limited to long strip protrusions, arc-shaped protrusions, S-shaped protrusions 107, L-shaped protrusions 106 and straight-inserted inclined-surface protrusions 108. The protrusions 3 cooperate with the air duct structural component 23 to form an air guide duct.

[0058] Preferably, the raised portion 3 can increase the contact area between the air outlet and the non-metallic conductive heating material 105, thereby improving the heating efficiency and reducing noise.

[0059] Reference Figure 22-23 :

[0060] The heating element fixing component 1 is disposed between the heating element component 21 and the air duct structure component 23 , and can fix the heating element component 21 and the air duct structure component 23 .

[0061] The heating element fixing assembly 1 comprises a fixing member 34 and a fixing bracket 31. The fixing member 34 is sleeved on the air duct structure assembly 23, and a cavity 36 matching the air duct structure assembly 23 is provided on the fixing member 34. The first and second bending portions 32 and 30 are respectively provided at the head and tail ends of the fixing bracket 31, the first bending portion 32 is riveted on the fixing member 34, and the second bending portion 30 is clamped on the side wall end of the heating element assembly 21, so that the connection between the heating element fixing assembly 1 and the heating element group 2 is stable and highly reliable.

[0062] A first support plate 38 and a second support plate 37 are provided at the end of the fixing member 34 in the axial direction. A temperature control switch 33 for controlling the temperature of the heating element is riveted on the first support plate 38. A fuse 35 for protecting against excessive current is riveted on the second support plate 37. The heating element assembly 21 is provided with good safety protection, so that the temperature of the heating element assembly 21 is not too high, and the safety performance is high.

[0063] Reference Fig.25 : It is the air mixing heating process of the flat heating device.

[0064] Preferably, when the positive and negative electrodes are energized, the non-metallic conductive heating material 105 can be energized to generate heat. When cold wind blows through the non-metallic conductive heating material 105, the cold wind can fully contact the heating surface and become hot wind to be blown out. The outer surface of the protrusion 3 is coated with a non-metallic conductive heating coating so that the coating area is increased, more heat is generated, and it can play a role in guiding the wind, making the wind speed faster. The fuse 35 protects against excessive current, and the temperature control switch 33 controls the heating element to provide better safety protection, so that the temperature of the non-metallic flat heating element should not be too high, and the safety performance is better.

[0065] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novelties disclosed herein.

Claims

1. A flat heating low-noise hair dryer, characterized in that: include: A body assembly, the body assembly comprising an air inlet portion, an air outlet head portion, and a handle portion extending from the air inlet portion to the air outlet head portion; An air outlet motor is arranged in the fuselage assembly, and the air outlet motor is located near the joint position between the handle part and the air outlet head, and the air outlet motor is far away from the air inlet part; A non-metallic planar heating device is provided in the air outlet head, and the non-metallic planar heating device includes a heating element component and an air duct structure component; The flat-surface heating low-noise hair dryer is a complete machine structure; The heating element assembly is composed of a non-metallic conductive heating material, a high temperature adhesive and a high temperature resistant insulating material mixed and prepared according to the resistance value; the non-metallic conductive heating material includes graphene and PI carbon fiber, and the heating temperature of the non-metallic conductive heating material is greater than 200°C; The air duct structure component is made of metal or ceramic material; a compression air duct structure is arranged in the air duct structure component; The shape of the compression air duct structure includes one of an arc shape, a convex shape, an L shape, an S shape, a lotus funnel shape, a rotating sine wave shape, a diamond shape, a wedge shape, a V-shaped compression shape, a multi-layer funnel shape, a multi-layer flower shape, a multi-layer staggered honeycomb shape, a multi-layer wave shape, a rotary blade shape, a multi-layer bowl shape, a rotary blade solid shape and a rotary surface petal shape; The air duct structure component is provided with two mutually insulated conductive silver electrodes; the heating element component is connected to the conductive silver electrodes of the air duct structure component; The heating element assembly is provided with an insulating protective layer, a heating layer and an insulating fixing layer in sequence; the thickness of the heating layer is set to 0.001-1 mm; the heating temperature of the heating layer can be adjusted in the range of room temperature to 600° C. After the heating element assembly is powered on, the electrical energy is directly converted into thermal energy, and the conversion efficiency is greater than 60%; The heating element assembly can emit far infrared rays which are beneficial to the human body, and the wavelength of the far infrared rays is 4 to 15 um; The fixing methods of the heating element assembly and the air duct structure assembly include coating, spraying, printing and interlayer; at least one side of the heating element assembly is provided with a non-metallic conductive heating material coating; A protrusion is protruding from the outer wall of the compression air duct structure for guiding air and improving heating efficiency. The protrusion is composed of a plurality of protrusions arranged in a circular array along the outer wall of the compression air duct structure; the outer surface of each protrusion is coated with a non-metallic conductive heating coating.

2. The flat heating low noise hair dryer according to claim 1, characterized in that: It comprises a heating element fixing assembly, which is arranged between the heating element assembly and the air duct structure assembly; the heating element fixing assembly comprises a fixing piece and a fixing bracket.

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