Noise reduction device of blower

Abstract

The utility model relates to the technical field of blower accessories, in particular to a blower noise reduction device, which is characterized in that an air inlet end of an air duct is provided with a flow guide frame fixedly mounted with a handle, the flow guide frame is provided with a plurality of air inlets, an air baffle is arranged between adjacent air inlets, and one end, far away from the handle, of each air inlet is provided with a flow guide surface; according to the blower, the diversion frame is arranged at the air inlet end of the air duct, the multiple air inlets are formed in the diversion frame, and the air baffles are arranged between the adjacent air inlets, so that when the blower is started, the diversion frame can effectively separate airflow entering the air duct, and therefore turbulent airflow is reduced; and the flow dividing barrel is arranged at the end, close to the flow guide frame, in the air channel, the flow dividing barrel can rectify the air flow again, so that the air flow enters the air channel in order, noise caused by collision of the air flow is further avoided, and the noise reduction effect is further achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryer accessories, in particular to a hair dryer noise reduction device. Background Art

[0002] A hair dryer, also known as an electric hair dryer, is a necessary daily necessity in people's lives. It can quickly dry hair and style hair. Existing hair dryers are generally composed of a handle for holding and a hair barrel connected to the handle. An air duct is formed by a front-to-back penetration in the handle. When the hair dryer is in use, the motor rotates at a high speed in the air duct, thereby causing the wind blown out of the hair dryer hair barrel to enter from the tail end of the handle, that is, the air inlet of the air duct. However, when the motor rotates at a high speed, the air pressure at the outer circle is the largest and the air pressure at the center is the lowest. Therefore, when the airflow enters from the air inlet, the high-pressure airflow and the low-pressure airflow enter the air duct at the same time and mix, and the airflow will collide in the air duct, thereby generating obvious noise, resulting in excessive noise when using the hair dryer, affecting the user experience.

[0003] The technical problem to be solved by the present application is to design a hair dryer noise reduction device which can effectively reduce the noise of the hair dryer when it is in use. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a hair dryer noise reduction device which can effectively reduce the noise of the hair dryer when it is in use.

[0005] The technical solution adopted by the utility model is: a hair dryer noise reduction device, including a handle, a front-to-back through-hole in the handle to form an air duct, an air inlet end of the air duct is provided with a guide frame fixedly mounted on the handle, the guide frame is provided with a plurality of air inlets, a wind shield is provided between adjacent air inlets, the air inlet is provided with a guide surface at the end away from the handle, and the air duct is provided with a splitter tube at the end close to the guide frame.

[0006] In some embodiments, the end face of the wind shield is inclined from the end close to the guide surface to the end close to the handle, the bottom end area of ​​the wind shield is larger than the top end area of ​​the wind shield, and the bottom end of the wind shield is close to the guide surface.

[0007] In some embodiments, guide ports are formed between adjacent wind shields, the guide ports are conical, each guide port corresponds to an air inlet, and the guide ports are connected to the air duct.

[0008] In some embodiments, the guide surface is a fan-shaped arc surface, the inner arc length of the guide surface is smaller than the outer arc length, and the inner arc of the guide surface is arranged at one end close to the handle.

[0009] In some embodiments, the flow diversion cylinder includes a flow diversion net disposed near one end of the flow guide frame, and the flow diversion net includes a plurality of flow diversion holes.

[0010] In some embodiments, a limiting groove is provided on the diverter tube, and a limiting plate connected to the wind shield is provided on the guide frame, and the limiting groove cooperates with the limiting plate.

[0011] In some embodiments, a locking slot is provided in the limiting groove, and the windshield plate is locked in the locking slot.

[0012] In some embodiments, a motor is disposed in the air duct, and the motor is disposed at one end of the flow diversion cylinder away from the flow diversion network.

[0013] The utility model has the following technical effects: by providing a guide frame at the air inlet end of the air duct, and providing a plurality of air inlets on the guide frame, and providing a wind shield between adjacent air inlets, when the hair dryer is started, the guide frame can effectively separate the airflow entering the air duct, thereby reducing the generation of airflow turbulence, and further avoiding the mutual collision of airflows to achieve the effect of reducing noise generation, and a diverter cylinder is provided at one end of the air duct close to the guide frame, and the diverter cylinder can rectify the airflow again, so that the airflow enters the air duct in an orderly manner, thereby further avoiding the collision of airflows to generate noise, and thus achieving the effect of noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the airflow guide structure of the hair dryer noise reduction device of the utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of the noise reduction device for a hair dryer of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the noise reduction device for a hair dryer of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the diverter tube structure of the hair dryer noise reduction device.

[0018] The numbers and names in the figure correspond to each other as follows: 1. handle; 2. air duct; 3. guide frame; 30. air inlet; 31. wind shield; 32. guide surface; 4. diverter tube; 33. guide port; 40. diverter net; 41. diverter hole; 42. limit slot; 34. limit plate; 43. slot; 5. motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a hair dryer noise reduction device, comprising a handle 1, a wind duct 2 is formed by the front and rear through-through in the handle 1, a motor 5 is arranged in the wind duct 2, a guide frame 3 fixedly mounted with the handle 1 is arranged at the air inlet end of the wind duct 2, a plurality of air inlets 30 are arranged on the guide frame 3, a wind shield 31 is arranged between adjacent air inlets 30, the air inlet 30 is provided with a guide surface 32 at the end away from the handle 1, and the side end surface of the wind shield 31 is inclined from the end close to the guide surface 32 to the end close to the handle 1, and the bottom end area of ​​the wind shield 31 is larger than the top end area of ​​the wind shield 31, and the wind shield 31 is provided with a plurality of air inlets 30, and the wind shield 31 is provided with a plurality of air inlets 30, and the wind shield 31 is provided with a plurality of air inlets 30, and a plurality of air inlets 30 are ... One end of the bottom is arranged close to the guide surface 32, so that a wind shield 31 is provided between adjacent air inlets 30, and the side end surface of the wind shield 31 is inclined relative to the horizontal plane. When the hair dryer is started, the motor 5 starts to rotate to suck the air flow into the air duct 2. When the air flow enters the air duct 2 from the air inlets 30, since the wind shield 31 is provided between the adjacent air inlets 30, the air flow sucked in by the adjacent air inlets 30 will not be turbulent and cause collision due to the isolation of the wind shield 31, thereby avoiding the generation of wind noise, thereby greatly reducing the noise when the hair dryer is in use.

[0021] The guide surface 32 is a fan-shaped arc surface, and the inner arc length of the guide surface 32 is smaller than the outer arc length. The inner arc of the guide surface 32 is arranged at one end close to the handle 1, and a guide port 33 is formed between adjacent wind shields 31. Since the side end surface of the wind shield 31 is inclined to the horizontal plane, the guide port 33 is set in a conical shape, and each guide port 33 corresponds to an air inlet 30, and the guide port 33 is connected to the air duct 2. In this way, when the motor 5 starts to suck the airflow into the air duct 2, the guide surface 32 can guide the airflow and guide the airflow into the air duct 2, so that the airflow passes through the guide surface 32 to enter the air duct 2, and the conical guide port 33 can facilitate the aggregation and guidance of the airflow into the air duct 2, thereby increasing the wind force.

[0022] A diverter tube 4 is also provided at one end of the air duct 2 near the guide frame 3, and the diverter tube 4 also includes a diverter net 40 provided at one end near the guide frame 3. The motor 5 is provided at one end of the diverter tube 4 away from the diverter net 40, so that the airflow can be completely sucked into the air duct 2 only when the motor 5 is started. The diverter net 40 includes a plurality of diverter holes 41. By further providing a diverter tube 4 in the air duct 2 and providing a plurality of diverter holes 41 on the diverter tube 4, when the airflow enters the air duct 2, the diverter tube 4 can effectively rectify the airflow through the diverter holes 41 on the diverter tube 4, thereby further avoiding turbulence and collision of the airflow entering the air duct 2, thereby further reducing the generation of noise.

[0023] A limiting groove 42 is provided on the diverter tube 4, and the guide frame 3 is provided with a limiting plate 34 connected to the wind shield 31. The limiting groove 42 is limitedly matched with the limiting plate 34 so that the diverter tube 4 can be installed in the air duct 2 in a limited manner, and a clamping groove 43 is provided in the limiting groove 42. The installation stability of the diverter tube 4 in the air duct 2 can be further guaranteed by making the wind shield 31 and the clamping groove 43 clamp together.

[0024] The working principle or beneficial effect of the utility model is as follows: by providing a guide frame 3 at the air inlet end of the air duct 2, and providing a plurality of air inlets 30 on the guide frame 3, and providing a wind shield 31 between adjacent air inlets 30, when the hair dryer is started, the guide frame 3 can effectively separate the airflow entering the air duct 2, thereby reducing the generation of airflow turbulence, and further avoiding the mutual collision of airflows to achieve the effect of reducing noise generation, and a diverter tube 4 is provided at one end of the air duct 2 close to the guide frame 3, and the diverter tube 4 can rectify the airflow again, so that the airflow enters the air duct 2 in an orderly manner, thereby further avoiding the collision of airflows to generate noise, and thus achieving the effect of noise reduction.

[0025] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hair dryer noise reduction device, characterized in that: It includes a handle, in which an air duct is formed by a front-to-back connection. The air inlet end of the air duct is provided with a guide frame fixedly mounted to the handle. The guide frame is provided with a plurality of air inlets, and a wind shield is provided between adjacent air inlets. The air inlet is provided with a guide surface at the end away from the handle, and the air duct is provided with a diverter tube at the end close to the guide frame.

2. The hair dryer noise reduction device according to claim 1, characterized in that: The end face of the wind shield is inclined from the end close to the guide surface to the end close to the handle, the bottom end area of ​​the wind shield is larger than the top end area of ​​the wind shield, and the bottom end of the wind shield is close to the guide surface.

3. The hair dryer noise reduction device according to claim 1, characterized in that: An air guide port is formed between adjacent wind shields, the air guide port is conical, each of the air guide ports corresponds to an air inlet, and the air guide port is connected to the air duct.

4. The hair dryer noise reduction device according to claim 1, characterized in that: The guide surface is a fan-shaped arc surface, the inner arc length of the guide surface is smaller than the outer arc length, and the inner arc of the guide surface is arranged at one end close to the handle.

5. The hair dryer noise reduction device according to claim 1, characterized in that: The flow-dividing cylinder comprises a flow-dividing net arranged near one end of the flow-guiding frame, and the flow-dividing net comprises a plurality of flow-dividing holes.

6. The hair dryer noise reduction device according to claim 1, characterized in that: The diverter tube is provided with a limiting groove, the guide frame is provided with a limiting plate connected to the wind shield plate, and the limiting groove is in limiting cooperation with the limiting plate.

7. The hair dryer noise reduction device according to claim 6, characterized in that: A clamping slot is arranged in the limiting slot, and the wind shield plate is arranged in a clamping position with the clamping slot.

8. The hair dryer noise reduction device according to claim 1, characterized in that: A motor is arranged in the air duct, and the motor is arranged at one end of the flow diversion cylinder away from the flow diversion network.

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