Low-noise hair drier

Abstract

The utility model relates to a low-noise hair drier which comprises a shell, an inner barrel and a motor support connected with the inner barrel are arranged in the shell, a fluid channel is formed in the inner barrel and the motor support, an air inlet is formed in the side, corresponding to the motor support, of the fluid channel, and an air outlet is formed in the side, corresponding to the inner barrel, of the fluid channel. Fluid is sucked into the fluid channel from the air inlet through the motor and blown out from the air outlet, the air inlet net is arranged at the air inlet, the air outlet net is arranged at the air outlet, the rectification assembly is arranged between the air inlet and the motor, and disordered fluid entering through the air inlet is smoothed under the action of the rectification assembly and then enters the fluid channel. The disordered fluid entering the air inlet is arranged smoothly through the rectification assembly and then enters the fluid channel, so that the effects of noise reduction and high-frequency sound elimination of the blower are achieved, reasonable parameters are set according to the distance and the shape of the rectification net, the effects of noise reduction and high-frequency sound elimination are better, the user experience is improved, and the blower is more environmentally friendly.

Description

TECHNICAL FIELD

[0001] The utility model relates to hair dryer field especially relates to a low noise hair dryer. BACKGROUND

[0002] Hair dryer is mainly used for drying and shaping hair, but also can be used for local drying, heating and physiotherapy in laboratory, physiotherapy room and industrial production, graphic design and other aspects. The inside of the hair dryer is usually provided with a motor fan, which directly drives the rotor to rotate the fan blade by the motor. When the fan blade rotates, air is sucked from the air inlet, and the centrifugal airflow formed thereby is blown out from the front nozzle of the air duct. In the current market, high-speed electric hair dryers are becoming more and more popular, but the high-frequency sound and noise generated by the high-speed motor used inside the product make the consumer's auditory experience poor.

[0003] Chinese patent publication No. CN220327011U discloses a noise reduction hair dryer, which comprises a handle, an air inlet and sound absorbing cotton. The air inlet is arranged on the handle, and the inner wall of the handle encloses a fluid passage with the air inlet as the fluid inlet. An installation groove with a hollow bottom is formed in the inner wall of the handle, and the bottom of the installation groove is in contact with the fluid passage. The sound absorbing cotton is installed in the installation groove, and the shape of the installation groove is adapted to the shape of the sound absorbing cotton. In the above arrangement, the sound absorbing cotton can be fully in contact with the fluid inside the noise reduction hair dryer through the installation groove and the hollow bottom of the installation groove, which ensures the noise reduction effect and makes the installation of the sound absorbing cotton more convenient. This patent reduces noise by using sound absorbing cotton, but the noise reduction effect is poor. SUMMARY

[0004] The technical problem to be solved by the utility model is that high-speed electric hair dryers are becoming more and more popular, but the high-frequency sound and noise generated by the high-speed motor used inside the product make the consumer's auditory experience poor. In view of the above defects of the prior art, a low noise hair dryer is provided.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of:

[0006] A low noise hair dryer is constructed, which comprises a shell, the two sides of the shell are provided with openings, an inner cylinder and a motor support connected with the inner cylinder are arranged in the shell, a fluid passage is formed inside the inner cylinder and the motor support, an air inlet is formed on one side of the fluid passage corresponding to the motor support, and an air outlet is formed on one side of the fluid passage corresponding to the inner cylinder, a motor is arranged in the motor support, the fluid is sucked into the fluid passage from the air inlet by the motor, and is blown out from the air outlet, an air inlet net is arranged at the air inlet, an air outlet net is arranged at the air outlet, and a flow regulation assembly is arranged between the air inlet and the motor. The turbulent fluid entering through the air inlet enters the fluid passage smoothly under the action of the flow regulation assembly.

[0007] Preferably, the rectifying assembly comprises at least one set of rectifying nets, the motor support is provided with a rectifying assembly slot corresponding to the rectifying assembly, the rectifying assembly is arranged at the rectifying assembly slot, and gaps are left between the rectifying assembly, the motor and the air inlet.

[0008] Preferably, the rectifying assembly comprises multiple sets of rectifying nets, and the multiple sets of rectifying nets are connected through a rectifying support, and the rectifying nets and the rectifying support are connected through limiting structures.

[0009] Preferably, the limiting structure comprises multiple sets of notches arranged on the rectifying nets, and fixing blocks corresponding to the notches are arranged on the rectifying support, the fixing holes are arranged at the notches to limit the rectifying nets on the rectifying support, and two sets of limiting blocks are arranged on the outer side of the rectifying support, and limiting holes corresponding to the limiting blocks are arranged in the rectifying assembly slot.

[0010] Preferably, the rectifying net is made of SUS304 metal material, the thickness of the rectifying net is 0.2-0.5mm, the distance between the rectifying net and the motor is 3-8mm, when the rectifying net is arranged in multiple sets, the distance between the multiple sets of rectifying nets is 2.5-4mm, the rectifying net is provided with mesh holes, the radius of the mesh hole is 1-1.5mm, and the distance between adjacent mesh holes is 0.2-0.5mm.

[0011] Preferably, the thickness of the rectifying net is 0.2mm, the distance between the multiple sets of rectifying nets is 3mm, the distance between the rectifying net and the motor is 5mm, the mesh hole is a hexagonal mesh hole, and the distance between the hexagonal mesh holes is 0.25mm.

[0012] Preferably, the motor support is provided with an air inlet net support on one side, the air inlet net is detachably connected with the air inlet net support, the air outlet net is detachably connected with the inner cylinder, and a heating assembly is further arranged in the inner cylinder, so that the fluid in the fluid channel is heated by the heating assembly and then discharged through the air outlet.

[0013] Preferably, the air inlet net is provided with air inlet net holes on the side surface and / or the top surface, the motor support is provided with a connecting part on the other side, and the outer wall of the connecting part is in contact with the inner wall of the inner cylinder to connect the motor support and the inner cylinder.

[0014] Preferably, the inner cylinder is provided with a bayonet on one side, the connecting part is provided with a buckle corresponding to the bayonet, the inner cylinder and the motor support are connected through the buckle and the bayonet, the inner cylinder is provided with a limiting port on the side facing the motor support, the motor support is provided with a limiting block corresponding to the limiting port, the air outlet net is provided with a bayonet on both sides, and the outer wall of the inner cylinder is provided with a buckle corresponding to the bayonet.

[0015] Preferably, a mica cylinder is arranged between the inner cylinder and the heating assembly, an inner blocking ring is arranged on the inner wall of the inner cylinder towards the air outlet, the inner blocking ring generates a blocking force for the mica cylinder, and a decorative piece is arranged in the middle of the air outlet net.

[0016] The hair dryer has the advantages that: the fluid entering the air inlet is arranged smoothly in the fluid channel through the rectifying assembly, so that the hair dryer can realize the function of noise reduction and high-frequency sound elimination, the reasonable parameters are set according to the distance and shape of the rectifying net, the effect of noise reduction and high-frequency sound elimination is better, the user experience is improved, and the hair dryer is more green and environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the premise of not deviating from the concept of the present application:

[0018] Figure 1 It is a perspective structural schematic view of the hair dryer of the preferred embodiment of the present application;

[0019] Figure 2 It is an exploded structural schematic view of the hair dryer of the preferred embodiment of the present application;

[0020] Figure 3 It is a front view of one side of the air outlet net of the hair dryer of the preferred embodiment of the present application;

[0021] Figure 4 It is a sectional structural schematic view of the hair dryer of the preferred embodiment of the present application in A-A direction; Figure 3

[0022] Figure 5 It is an axial side structural schematic view of the inner cylinder of the preferred embodiment of the present application;

[0023] Figure 6 It is an axial side structural schematic view of the air outlet net of the preferred embodiment of the present application;

[0024] Figure 7 It is an axial side structural schematic view of the upper support of the motor of the preferred embodiment of the present application;

[0025] Figure 8 It is an exploded structural schematic view of the rectifying assembly of the preferred embodiment of the present application. DETAILED DESCRIPTION ​

[0026] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the following will combine the technical scheme in the utility model embodiment to make clear and complete description, obviously, the described embodiment is part of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] The utility model preferred embodiment's one low noise hair dryer, as Figures 1-4 Shown, including the shell (not shown in the drawing), the motor support 40 and the inner tube 10 in the shell, the inner tube 10 and the motor support 40 end connection, the inside forms fluid passage 80, the motor support one end is connected with the air inlet net 50, and the air inlet hole 800 is formed on the air inlet net, and the inner tube one end is connected with the air outlet net 20, and the air outlet hole 801 is formed on the air outlet net, and the motor support is further provided with the motor 30, air is inhaled into the fluid passage 80 from the air inlet hole by the motor, then is blown out by the air outlet hole 801 and is operated, and the motor and the air inlet net are provided with the rectifier assembly 60, and the air inhaled through the air inlet hole enters the fluid passage after reducing the sound of fluid by the rectifier assembly and is blown out through the air outlet hole.

[0028] Specifically, as Figure 2 And Figure 4 Shown, the motor support 40 includes the motor upper support 400 and the motor lower support 401, and the motor upper support and the motor lower support connection place can be provided with sealing structure to avoid fluid loss from the connection place. The motor support one side is provided with the air inlet net support 402, and the air inlet net is detachably installed on the air inlet net support, such as buckle connection, screw locking connection and the like. It needs to be explained that, the air inlet net 50 side and top are provided with air inlet hole, so as to increase the air inlet area, improve the air inlet amount, and the air inlet effect is better. The motor is arranged on the side close to the air inlet, and the rectifier assembly 60 is arranged between the motor and the air inlet, and the gap 406 is left between the rectifier assembly and the motor.

[0029] Further, as Figure 4 And Figure 8As shown, the motor support is internally provided with a rectifier assembly slot 403, and the rectifier assembly is arranged in the slot. The rectifier assembly 60 is provided with two sets of rectifier nets, and the outer rectifier net 600 and the inner rectifier net 602 are connected through a rectifier support 601. It should be noted that the rectifier support can also not be provided, and the support is used to mount the outer rectifier net and the inner rectifier net in the rectifier assembly slot. The turbulent fluid entering the air inlet is rectified by the rectifier net and then flows smoothly in the smooth fluid passage 80, so as to achieve the effect of noise reduction and elimination of high-frequency sound. In the present application, the rectifier net is provided in two sets, and can also be provided in multiple sets according to needs, and the noise reduction effect is better when two rectifier nets are provided. The distance between the outer rectifier net 600 and the inner rectifier net 601 is set to 2.5-4mm, and preferably 3mm, and the distance between the outer rectifier net 600 and the air inlet is 3-8mm, and preferably 5mm. The outer rectifier net and the inner rectifier net are both made of SUS304 material, and the thickness is 0.2-0.5mm, and preferably 0.2mm. The aperture of the inner rectifier net can be provided in a hexagonal hole shape, the side length of the hexagonal hole is set to 1-1.5mm, and the distance between the hexagonal holes is 0.2-0.5mm, and preferably 0.25mm. According to the above numerical value and shape, the noise reduction and high-pitch elimination effect is better.

[0030] Further, as shown in Figure 8 , the inner rectifier net 601 and the outer rectifier net 602 are both externally provided with multiple sets of notches 603, and the rectifier support 602 is provided with a fixing block 604 corresponding to the notches. The fixing block is inserted into the notch to connect the rectifier net and the rectifier support, so as to avoid rotation of the rectifier net. Meanwhile, the opposite side of the rectifier support is provided with an outward protruding rectifier assembly limiting block 605, and a limiting groove can be correspondingly arranged in the rectifier assembly slot to limit the rectifier assembly in the motor support, so as to avoid rotation of the rectifier assembly.

[0031] Further, as shown in Figure 2 , Figure 5 and Figure 7 , the side of the motor upper support 400 is provided with a support buckle 408, and the side of the motor lower support is correspondingly provided with a buckle to realize buckle connection of the motor support. Since the control panel needs to be connected with the motor, a buffer silica gel 70 is arranged at part of the connection to seal the connection between the control panel and the motor. The motor support 400 is provided with a connecting part 407 on the side facing the inner cylinder, and the radius of the connecting part is smaller than the radius of the inner cylinder. When the motor support is connected with the inner cylinder, the connecting part is inserted into the inner cylinder. The outer wall of the connecting part is provided with a support protrusion 404, and the inner cylinder is provided with an inner cylinder buckle 101 corresponding to the support protrusion. The inner cylinder and the motor support are buckled and connected. Meanwhile, the side of the inner cylinder connected with the motor support is provided with an inner cylinder limiting port 102, and the motor support is provided with a support limiting block 405 corresponding to the inner cylinder limiting port. The inner cylinder and the motor support are pre-connected and limited through the limiting block and the limiting port.

[0032] Further, as shown in Figures 1-2 and Figures 5-6As shown, the inner cylinder 10 is provided with a plurality of inner cylinder buckles 100 away from the motor support side, and the air outlet net 20 is provided with vertical ears 202 on both sides, which are in contact with the inner cylinder side wall, and the vertical ears are provided with air outlet net clamping holes 200, which can detachably connect the air outlet net and the inner cylinder, and also facilitate the disassembly of the air outlet net. The inner cylinder is provided with an inner ring 105 near the air outlet net side wall, a mica cylinder 103, and a heating frame 104 arranged in the mica cylinder. The fluid is heated after passing through the heating frame and then blown out through the air outlet. The inner ring can only be inserted and extracted along the side of the inner cylinder close to the motor support, and in order to improve the appearance, the air outlet net is provided with a decorative part 201, and the air outlet net is provided with a decorative groove 203 in the middle, the decorative part is installed on the decorative groove, and the decorative groove is cross-shaped to avoid the rotation of the decorative part and improve the appearance of the hair dryer.

[0033] It should be understood that the present application is described by some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope of the present application.

Claims

1. A low-noise hair dryer comprising a housing having openings on both sides thereof, an inner cylinder and a motor bracket connected to the inner cylinder disposed within the housing, a fluid channel formed within the inner cylinder and the motor bracket, the fluid channel forming an air inlet on one side corresponding to the motor bracket and an air outlet on the other side corresponding to the inner cylinder, a motor disposed within the motor bracket, the motor sucking fluid from the air inlet into the fluid channel and blowing it out through the air outlet, characterized in that: An air inlet net is provided at the air inlet, an air outlet net is provided at the air outlet, and a rectifying component is provided between the air inlet and the motor. The turbulent fluid entering through the air inlet is smoothed by the rectifying component and then enters the fluid channel.

2. The hair dryer according to claim 1, wherein: The rectifier assembly includes at least one set of rectifier nets. A rectifier assembly slot is provided in the motor bracket corresponding to the rectifier assembly. The rectifier assembly is placed in the rectifier assembly slot, and gaps are left between the rectifier assembly and the motor and the air inlet.

3. The hair dryer according to claim 2, characterized in that: The rectifier assembly includes multiple groups of rectifier nets, and the multiple groups of rectifier nets are connected through rectifier brackets. The rectifier nets and the rectifier brackets are connected through a limiting structure.

4. The hair dryer according to claim 3, characterized in that: The limiting structure includes multiple groups of notches arranged on the rectifier net, and fixed blocks arranged on the rectifier bracket corresponding to the notches. The fixed blocks are placed at the notches to limit the rectifier net on the rectifier bracket. Two groups of limiting blocks are arranged opposite to each other on the outside of the rectifier bracket, and limiting holes are arranged in the rectifier component slot corresponding to the limiting blocks.

5. The hair dryer according to claim 3, characterized in that: The rectifier mesh is made of SUS304 metal material, the thickness of the rectifier mesh is 0.2-0.5mm, the distance between the rectifier mesh and the motor is 3-8mm, when the rectifier mesh is set into multiple groups, the distance between the multiple groups of rectifier mesh is 2.5-4mm, the rectifier mesh is provided with mesh holes, the mesh radius is 1-1.5mm, and the distance between adjacent mesh holes is 0.2-0.5mm.

6. The hair dryer according to claim 5, characterized in that: The thickness of the rectifier mesh is 0.2 mm, the distance between the multiple groups of rectifier meshes is 3 mm, the distance between the rectifier mesh and the motor is 5 mm, the mesh is a hexagonal mesh, and the distance between the hexagonal meshes is 0.25 mm.

7. The hair dryer according to any one of claims 1 to 6, characterized in that: An air inlet net bracket is provided on one side of the motor bracket. The air inlet net is detachably connected to the air inlet net bracket, and the air outlet net is detachably connected to the inner cylinder. A heating component is also provided in the inner cylinder. The fluid in the fluid channel is heated by the heating component and then discharged through the air outlet.

8. The hair dryer according to claim 7, characterized in that: The side and / or top surface of the air inlet net are provided with air inlet mesh holes, and the other side of the motor bracket is provided with a connecting portion, and the outer wall of the connecting portion contacts the inner wall of the inner cylinder to connect the motor bracket and the inner cylinder.

9. The hair dryer according to claim 8, characterized in that: The inner cylinder is provided with a bayonet, and the side wall of the connecting part is provided with a buckle corresponding to the bayonet. The inner cylinder is connected to the motor bracket through the buckle and the bayonet. A limiting opening is provided on the side of the inner cylinder facing the motor bracket, and a limiting block is provided on the motor bracket corresponding to the limiting opening. Bayonet is provided on both sides of the air outlet network, and a buckle is provided on the outer wall of the inner cylinder corresponding to the bayonet.

10. The hair dryer according to claim 7, characterized in that: A mica cylinder is provided between the inner cylinder and the heating assembly. An inner retaining ring is provided on the inner wall of the inner cylinder facing the air outlet. The inner retaining ring generates a stopping force for the mica cylinder. A decorative piece is provided in the middle of the air outlet net.

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