Hair drier

Abstract

The utility model relates to the technical field of hair driers, and particularly discloses a hair dryer, which is characterized in that a front air inlet area and a side air inlet area are respectively arranged on a rear cover at an air inlet end, so that when the hair dryer is used, air flow can respectively enter an air duct from the front air inlet area and the side air inlet area; according to the air blower, the inner shell assembly and the outer shell assembly are arranged, so that the situation that airflow flows from the same area at the same time, consequently, the airflow collides at the moment of entering, and wind noise is generated is avoided, and then noise generated when the air blower is used is reduced; in this way, after air flow enters from the air inlet end, the pressurizing barrel can gather and pressurize the air flow, so that the air speed of the air flow blown out when the hair drier is used can be greatly increased, and the use experience feeling is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, and particularly relates to a hair dryer. Background Art

[0002] A hair dryer is a household appliance mainly used for drying and shaping hair. Some are also used for local drying, heating and physiotherapy in laboratories, physiotherapy rooms, industrial production, art and other aspects. The hair dryer is driven by an electric motor to drive the rotor to drive the fan blades to rotate, blowing hot and cold air to achieve the purpose of drying and shaping.

[0003] The experience of using a hair dryer generally comes from various factors such as the blowing speed and the generated noise. However, current hair dryers often neglect these two factors during production, thus affecting the use experience.

[0004] The technical problem to be solved by this application is to design a hair dryer that can increase the blowing speed and reduce the noise. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a hair dryer that can increase the blowing speed and reduce the noise.

[0006] The technical solution adopted by the utility model is: a hair dryer, including a handle and a barrel. The barrel includes an air inlet end and an air outlet end. The barrel includes an outer housing assembly and an inner housing assembly. The outer housing assembly includes a rear cover at the air inlet end. The rear cover is respectively provided with a positive air inlet area and a side air inlet area for avoiding air flow collision to reduce wind noise. The inner housing assembly includes a booster cylinder, and the booster cylinder is in a horn shape for pressurizing the air flow to increase the blowing speed.

[0007] In some embodiments, the positive air inlet area includes a number of first strip-shaped air inlets provided at the bottom of the rear cover, and the side air inlet area includes a number of second strip-shaped air inlets provided on the side of the rear cover.

[0008] In some embodiments, a first filter screen for dust prevention is provided inside the rear cover. A number of first connecting columns are provided at the bottom of the rear cover. A number of first connecting holes corresponding to the first connecting columns are provided on the first filter screen, and the first connecting columns and the first connecting holes are in a limiting fit.

[0009] In some embodiments, a second filter screen for dust prevention is further provided at the end of the booster cylinder close to the rear cover. A number of second connecting columns are provided on the booster cylinder. A number of second connecting holes corresponding to the second connecting columns are provided on the second filter screen, and the second connecting columns and the second connecting holes are in a limiting fit.

[0010] In some embodiments, a limiting column is provided at the inner bottom of the rear cover, and a limiting slot corresponding to the limiting column is provided on the booster cylinder. The limiting column and the limiting slot are in a clamping fit.

[0011] In some embodiments, the booster cylinder includes a wind-gathering end and a wind-sending end. The wind-sending end is in the shape of a flared opening, and the diameter of the wind-gathering end is smaller than the caliber of the wind-sending end.

[0012] In some embodiments, a brushless motor is provided inside the booster cylinder, and a heating component for controlling hot and cold air is further provided at the wind-sending end of the booster cylinder. The heating component includes a number of mica sheets distributed in a fan shape.

[0013] In some embodiments, the inner housing assembly further includes mica paper located at the wind-sending end of the booster cylinder. The mica paper is cylindrical, and the heating component is located inside the mica paper.

[0014] In some embodiments, the inner housing assembly further includes an inner liner for heat insulation located at the wind-sending end of the booster cylinder. The mica paper is arranged inside the inner liner. The outer housing assembly includes a front wind ring at one end of the inner liner, and the outer housing assembly further includes a barrel body located between the front wind ring and the rear cover. A handle is connected to the barrel body, and a circuit control board is provided inside the handle.

[0015] In some embodiments, a swivel joint is further provided at the air outlet end of the hair dryer, and a clamping groove for connecting functional accessories is provided inside the swivel joint.

[0016] The utility model has the following technical effects: By respectively providing a positive air inlet area and a side air inlet area on the rear cover at the air inlet end, when the hair dryer is in use, air flow can enter the hair dryer from the positive air inlet area and the side air inlet area respectively, so as to avoid the air flow colliding instantaneously when entering from the same area and generating wind noise, thereby reducing the noise generated when the hair dryer is in use. And a booster cylinder is further provided in the inner housing assembly, wherein the shape of the booster cylinder is arranged in a flared opening, so that the booster cylinder can converge and boost the air flow after the air flow enters from the air inlet end, thereby greatly increasing the air flow speed of the air flow blown out when the hair dryer is in use, and thus enhancing the use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the hair dryer in Embodiment 1 of the utility model;

[0018] Figure 2 is a schematic internal structural diagram of the hair dryer in Embodiment 1 of the utility model;

[0019] Figure 3 is a schematic disassembled structural diagram of the hair dryer in Embodiment 1 of the utility model;

[0020] Figure 4 is a schematic structural diagram of the rear cover of the hair dryer in Embodiment 1 of the utility model;

[0021] Figure 5 is a schematic structural diagram between the booster cylinder and the rear cover of the hair dryer in Embodiment 1 of the utility model;

[0022] Figure 6 Schematic diagram of the pressure increasing cylinder structure of the hair dryer in Embodiment 1 of the present utility model;

[0023] Figure 7 Schematic diagram of the structure of the hair dryer in Embodiment 2 of the present utility model.

[0024] The reference numerals in the figure correspond to the names as follows: 1, handle; 2, air duct; 3, air inlet end; 4, air outlet end; 5, outer shell assembly; 6, inner shell assembly; 50, rear cover; 51, front air inlet area; 52, side air inlet area; 60, pressure increasing cylinder; 510, first strip-shaped air inlet; 520, second strip-shaped air inlet; 53, first filter screen; 54, first connecting column; 530, first connecting hole; 55, second filter screen; 601, second connecting column; 550, second connecting hole; 56, limiting column; 602, limiting card slot; 61, air gathering end; 62, air supply end; 63, brushless motor; 64, mica sheet; 65, mica paper; 66, inner liner; 57, front air ring; 58, barrel body; 7, adapter; 70, clamping slot. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0026] Embodiment 1, please refer to Figure 1-6 , the present utility model provides a technical solution: a hair dryer, including a handle 1 and an air duct 2. The air duct 2 includes an air inlet end 3 and an air outlet end 4. The air duct 2 includes an outer shell assembly 5 and an inner shell assembly 6. The outer shell assembly 5 includes a barrel body 58 and a rear cover 50 located at the air inlet end 3. A front air inlet area 51 and a side air inlet area 52 for preventing air flow from colliding and thus reducing wind noise are respectively provided on the rear cover 50. In this way, when the hair dryer is started, the air flow can enter the air duct 2 from the front air inlet area 51 and the side air inlet area 52 respectively, so as to prevent the air flow from entering from the same air inlet area simultaneously and colliding to generate wind noise, thereby reducing the noise generated when the hair dryer is in use and improving the use comfort. The inner shell assembly 6 further includes a pressure increasing cylinder 60 connected to the rear cover 50. The pressure increasing cylinder 60 is arranged in a flared shape. In this way, when the air flow entering from the air inlet end 3 flows through the pressure increasing cylinder 60, the pressure increasing cylinder 60 can converge the air flow to play a role in increasing pressure, so that the speed of the air flow when flowing out of the pressure increasing cylinder 60 can be increased, thereby improving the wind speed when the hair dryer is in use.

[0027] Among them, the positive air inlet area 51 includes a number of first strip-shaped air inlets 510 provided at the bottom of the rear cover 50, and the side air inlet area 52 includes a number of second strip-shaped air inlets 520 provided on the side of the rear cover 50. By arranging the air inlets of both the positive air inlet area 51 and the side air inlet area 52 in a strip shape, compared with the circular arrangement, the air flow is less likely to be scattered when entering through the strip-shaped air inlets, and the strip-shaped air inlets are also arranged in a layered manner, so that the air flow also enters in a layered distribution when passing through the air inlets, thereby avoiding the collision between air flows and generating wind noise.

[0028] A first filter screen 53 for dust prevention is also provided inside the rear cover 50. A number of first connecting columns 54 are provided at the bottom of the rear cover 50. A number of first connecting holes 530 corresponding to the first connecting columns 54 are provided on the first filter screen 53. The first connecting columns 54 and the first connecting holes 530 are in limit fit to make the first filter screen 53 installed inside the rear cover 50. A second filter screen 55 is also provided at the end of the pressurizing cylinder 60 close to the rear cover 50. A number of second connecting columns 601 are provided on the pressurizing cylinder 60. A number of second connecting holes 550 corresponding to the second connecting columns 601 are provided on the second filter screen 55. The second connecting columns 601 and the second connecting holes 550 are in limit fit to make the second filter screen 55 installed on the pressurizing cylinder 60. A limiting column 56 is also provided inside the bottom of the rear cover 50. A limiting slot 602 corresponding to the limiting column 56 is provided on the pressurizing cylinder 60. The limiting column 56 and the limiting slot 602 are in clamping fit to connect the rear cover 50 and the pressurizing cylinder 60. And by providing the first filter screen 53 and the second filter screen 55, it can be avoided that some hairs or other sundries are sucked in when the hair dryer is in use, resulting in a burnt smell.

[0029] The pressurizing cylinder 60 includes a wind gathering end 61 and a wind sending end 62. Among them, the wind sending end 62 is in the shape of a flared mouth, the wind gathering end 61 is a straight cylindrical shape, and the diameter of the wind gathering end 61 is smaller than the diameter of the wind sending end 62. Therefore, after the air flow is sucked in from the rear cover 50, it first flows through the wind gathering end 61 of the pressurizing cylinder 60 for gathering and pressurizing, thereby increasing the wind speed.

[0030] A brushless motor 63 is provided inside the pressure cylinder 60. Using a brushless motor 63 can further increase the wind speed. Moreover, a heating component for controlling hot and cold air is also provided at the air supply end 62 of the pressure cylinder 60. The heating component includes several mica sheets 64 distributed in a fan shape. By arranging the mica sheets 64 in a fan-shaped surrounding distribution, the heating area can be increased and the heating effect can be improved. The inner housing assembly 6 further includes a mica paper 65 located at the air supply end 62 of the pressure cylinder 60. The mica paper 65 is cylindrical. The heating component is located inside the mica paper 65. By providing the mica paper 65, heat insulation and anti-scalding can be achieved when the hair dryer is in use. And the inner housing assembly 6 further includes an inner liner 66 for heat insulation located at the air supply end 62 of the pressure cylinder 60. The mica paper 65 is arranged inside the inner liner 66. By providing the inner liner 66, further heat insulation can also be achieved, thus preventing the barrel 58 from getting hot during use. And the inner liner 66 is connected to the air supply end 62, which can also ensure smooth air supply and converge the blown air flow, thereby further increasing the wind speed. The outer housing assembly 5 further includes a front air ring 57 located at one end of the inner liner 66. The barrel 58 is connected between the front air ring 57 and the rear cover 50. The front air ring 57 can fix the inner liner 66. The handle 1 is connected to the barrel 58. A circuit control board is provided inside the handle 1. The circuit control board is electrically connected to the brushless motor 63 and the mica sheets 64, and is used to control the startup and hot and cold air states of the hair dryer.

[0031] Embodiment 2. Please refer to Figure 7 , the present utility model provides another technical solution: a hair dryer. The hair dryer is provided with any one of the hair dryer structures in the above-mentioned Embodiment 1. A swivel joint 7 is further provided at the air outlet end 4 of the air duct 2 of the hair dryer. A plurality of clamping grooves 70 for connecting functional accessories are provided on the inner wall of the swivel joint 7. By providing the swivel joint 7, various functional accessories can be further installed on the swivel joint 7 by using the clamping grooves 70, such as installing a curling iron, a hot air comb, etc., so that it can be used as a hair dryer and also play other hair styling functions, thereby improving the use versatility.

[0032] The working principle of the present utility model: By respectively providing a positive air inlet area 51 and a side air inlet area 52 on the rear cover 50 at the air inlet end 3, when the hair dryer is in use, the air flow can enter the air duct 2 from the positive air inlet area 51 and the side air inlet area 52 respectively, thereby preventing the air flow from flowing in from the same area at the same time and causing the air flow to collide instantaneously when entering, resulting in wind noise, and further reducing the noise generated when the hair dryer is in use. And a pressure cylinder 60 is further provided in the inner housing assembly 6. The shape of the pressure cylinder 60 is arranged in a flared shape. In this way, after the air flow enters from the air inlet end 3, the pressure cylinder 60 can converge and pressurize the air flow, so that the wind speed of the air flow blown out when the hair dryer is in use can be greatly increased, thereby enhancing the use experience.

[0033] Finally, it should be noted that the above are only preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hair dryer, comprising a handle and a barrel, the barrel including an air inlet end and an air outlet end, the barrel including an outer housing assembly and an inner housing assembly, characterized in that, The outer housing assembly includes a rear cover at the air inlet end. The rear cover is respectively provided with a positive air inlet area and a side air inlet area for avoiding air flow collision to reduce wind noise. The inner housing assembly includes a pressurizing cylinder which is trumpet-shaped for pressurizing the air flow to increase the wind speed.

2. The hair dryer according to claim 1, characterized in that, The positive air inlet area includes a plurality of first strip-shaped air inlets provided at the bottom of the rear cover, and the side air inlet area includes a plurality of second strip-shaped air inlets provided on the side of the rear cover.

3. The hair dryer according to claim 1, characterized in that, A first filter screen for dust prevention is provided inside the rear cover. A plurality of first connecting columns are provided at the bottom of the rear cover. A plurality of first connecting holes corresponding to the first connecting columns are provided on the first filter screen, and the first connecting columns and the first connecting holes are in limiting cooperation.

4. The hair dryer according to claim 1, wherein, A second filter screen for dust prevention is further provided at the end of the pressurizing cylinder close to the rear cover. A plurality of second connecting columns are provided on the pressurizing cylinder. A plurality of second connecting holes corresponding to the second connecting columns are provided on the second filter screen, and the second connecting columns and the second connecting holes are in limiting cooperation.

5. The hair dryer according to claim 1, characterized in that, Limit columns are provided at the inner bottom of the rear cover. Limit card slots corresponding to the limit columns are provided on the pressurizing cylinder, and the limit columns and the limit card slots are in clamping cooperation.

6. The hair dryer according to claim 1, wherein, The pressurizing cylinder includes a wind gathering end and a wind sending end. The wind sending end is in the shape of a flared opening, and the diameter of the wind gathering end is smaller than the caliber of the wind sending end.

7. The hair dryer according to claim 6, characterized in that A brushless motor is provided inside the pressurizing cylinder. A heating assembly for controlling hot and cold air is further provided at the wind sending end of the pressurizing cylinder. The heating assembly includes a plurality of mica sheets distributed in a fan shape.

8. The hair dryer according to claim 7, wherein, The inner housing assembly further includes mica paper located at the wind sending end of the pressurizing cylinder. The mica paper is cylindrical, and the heating assembly is located inside the mica paper.

9. The hair dryer according to claim 8, characterized in that, The inner housing assembly further includes an inner liner for heat insulation located at the wind sending end of the pressurizing cylinder. The mica paper is provided inside the inner liner. The outer housing assembly includes a front wind ring at one end of the inner liner. The outer housing assembly further includes a barrel body between the front wind ring and the rear cover. The handle is connected to the barrel body, and a circuit control board is provided inside the handle.

10. The hair dryer according to claim 1, characterized in that, A connector is further provided at the air outlet end of the hair dryer. A clamping groove for connecting functional accessories is provided inside the connector.

Images