Air outlet structure of electric hair drier

Abstract

The utility model relates to the field of blowers, and discloses an air outlet structure of an electric hair drier, which comprises a shell, the rear end of the shell is fixedly connected with an installation sleeve, a first stand column is arranged on the front surface of the shell close to the top end, and upper air ports are respectively arranged on the left side and the right side of the front surface of the shell close to the first stand column. Third stand columns are arranged on the front surface, close to the left side and the right side, of the shell, middle air openings are formed in the positions, close to the upper surfaces of the third stand columns, of the front surface of the shell, second stand columns are arranged in the positions, close to the middles of the middle air openings and the upper air openings, of the front surface of the shell, and lower air openings are formed in the positions, close to the lower end, of the front surface of the shell. According to the utility model, the traditional equipartition design is changed into the upper tuyere, the middle tuyere and the lower tuyere, the larger the diameter of the air flow channel is, the smaller the air speed is, and the air pressure is in direct proportion to the square of the air flow speed, so that the air force of the air outlet can be changed by changing the aperture.

Description

Technical Field

[0001] This utility model relates to the field of hair dryers, and in particular to a structure for the air outlet of a hair dryer. Background Technology

[0002] Hair dryers are a common electrical appliance, also known as hair dryers. In daily life, they are mainly used for local drying and heating. There are also high-speed hair dryers with greater power and stronger airflow. Compared with traditional hair dryers, they have significant improvements in drying speed, hair care effect, and user experience.

[0003] When a high-speed hair dryer is in use, the airflow inside the device is subject to uneven speeds due to a 90° bend in the internal air duct and obstruction from the heating element and other structures. As the air accelerates at the outlet, this pressure imbalance worsens, causing cross-collisions and vortices at the outlet. This results in a buzzing, vibrating noise during use, negatively impacting the user experience. Therefore, a new hair dryer outlet structure is proposed to address these issues. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a hair dryer outlet structure, which aims to improve the problem in the prior art that "due to the unbalanced air pressure at each blowing point when a high-speed hair dryer blows air, a buzzing and vibrating sound will occur when the high-speed hair dryer is in use."

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hair dryer air outlet structure, including a housing, a mounting sleeve fixedly connected to the rear end of the housing, a first column provided near the top of the front surface of the housing, upper air outlets provided on the left and right sides of the front surface of the housing near the first column, third columns provided on the left and right sides of the front surface of the housing, a middle air outlet provided on the upper surface of the front surface of the housing near the third column, a second column provided on the front surface of the housing near the middle air outlet and the upper air outlet, and a lower air outlet provided on the front surface of the housing near the lower end. Multiple sets of lower air outlets are arranged in a semi-circular rotating array around the center line of the housing, with a third column between each pair of adjacent sets of lower air outlets. An mounting assembly is provided on the outer wall of the mounting sleeve.

[0006] As a further description of the above technical solution:

[0007] The front surface of the housing is provided with a mounting groove, and a lever is provided on the front surface of the housing above the mounting groove.

[0008] As a further description of the above technical solution:

[0009] The installation assembly includes a positioning post, the front end of which is fixedly connected to the rear end of the housing. The rear end of the housing is provided with four sets of fixing plates.

[0010] As a further description of the above technical solution:

[0011] The four sets of fixing plates are arranged in a cross shape.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the mounting sleeve is provided with a guide groove.

[0014] As a further description of the above technical solution:

[0015] The rear surface of the housing is provided with a clamping plate, and the outer wall of the housing is provided with a notch.

[0016] As a further description of the above technical solution:

[0017] The rear surface of the first column is V-shaped.

[0018] As a further description of the above technical solution:

[0019] The second column is tilted outwards as a whole.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by changing the traditional evenly distributed design, an upper air outlet, a middle air outlet, and a lower air outlet are set. Since the larger the diameter of the airflow channel, the lower the wind speed and the wind pressure is proportional to the square of the airflow speed, the size of the aperture can be changed to change the wind force of the air outlet. In this way, the wind force at each air outlet position of the whole device can be changed, so that the local wind pressure outside the air outlet is similar, thus reducing low-frequency wind noise and improving the user experience.

[0022] 2. In this utility model, the overall device can be improved by changing the shape and orientation of the first, second and third columns. After being put into production, the improvement can be achieved without making too many changes to the original production model of the original product, thus reducing the overall production cost. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a side view of the three-dimensional structure of the overall device in this utility model;

[0025] Figure 3 This is a rear view of the overall device in this utility model;

[0026] Figure 4 This is a three-dimensional cross-sectional view of the overall device in this utility model.

[0027] Legend:

[0028] 1. Shell; 2. Upper air vent; 3. First column; 4. Middle air vent; 5. Second column; 6. Third column; 7. Lower air vent; 8. Dial plate; 9. Mounting sleeve; 10. Guide groove; 11. Mounting groove; 12. Positioning column; 13. Clamping plate; 14. Fixing plate; 15. Notch groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 - Figure 3This utility model provides an embodiment of a hair dryer air outlet structure, including a housing 1 for guiding airflow. A mounting sleeve 9 for fixing the entire device is fixedly connected to the rear end of the housing 1. Because air passes through a right-angle air duct and is obstructed by the structure when passing inside the hair dryer, there is a difference in airflow velocity between the upper and lower layers. For ease of description, the upper layer with slower airflow is named "weak wind," and the lower layer with faster airflow is named "strong wind." The area through which the weak wind passes is named the "weak wind zone," and the area through which the strong wind passes is named the "strong wind zone." A first column 3 for obstructing airflow is provided near the top of the front surface of the housing 1. Upper air inlets 2 for allowing weak wind to pass are respectively provided on the left and right sides of the front surface of the housing 1 near the first column 3. Third columns 6 for separating the weak wind zone and the strong wind zone are respectively provided on the left and right sides of the front surface of the housing 1. A central air vent 4 is located on the upper surface of the front surface of the housing 1 near the third column 6. A second column 5 is located on the front surface of the housing 1 near the middle of the central air vent 4 and the upper air vent 2 to control the size of the upper air vent 2 and the central air vent 4. A lower air vent 7 is located on the front surface of the housing 1 near the lower end to exhaust strong air. Multiple sets of lower air vents 7 are arranged in a semi-circular rotating array with the center line of the housing 1 as the rotation axis. The rotating array arrangement can facilitate the uniform exhaust of strong air. A third column 6 is provided between each pair of adjacent sets of lower air vents 7. The outer wall of the mounting sleeve 9 is provided with mounting components. The first column 3 is 3.32mm thick, the second column 5 is 2.6mm thick, and the third column 6 is 1.69mm thick. Due to the different thicknesses of the three sets of columns, the size of the upper air vent 2, the central air vent 4, and the lower air vent 7 will also be limited. Specifically, the area of ​​the lower air vent 7 is larger than that of the central air vent 4, which is larger than that of the upper air vent 2.

[0031] Reference Figure 2 - Figure 4 The front surface of the housing 1 is provided with a mounting groove 11 for mounting the nozzle. Above the mounting groove 11 on the front surface of the housing 1, a baffle 8 is provided to block the nozzle. The mounting assembly includes a positioning post 12 for mounting bolts. The front end of the positioning post 12 is fixedly connected to the rear end of the housing 1. Four sets of fixing plates 14 are provided at the rear end of the housing 1. The fixing plates 14 are used to position the positioning post 12. The four sets of fixing plates 14 are arranged in a cross shape. When installing the housing 1, the mounting sleeve 9 is first inserted into the fan. Then, the position of the mounting sleeve 9 is positioned using the fixing plates 14. Finally, the positioning post 12 is fixed using the mounting bolts.

[0032] Reference Figure 2 - Figure 4The outer wall of the mounting sleeve 9 is provided with a guide groove 10 to guide the orientation of the mounting sleeve 9. The rear surface of the housing 1 is provided with a clamping plate 13 to fix the housing 1. By providing the clamping plate 13, the housing 1 can be prevented from rotating during use. The outer wall of the housing 1 is provided with a notch 15. The fan mounting position is provided with a boss that can be inserted into the notch 15. The rear surface of the first column 3 is V-shaped. The V-shaped design can compress the size of the upper air outlet 2 and guide the air to flow to both sides of the first column 3. The second column 5 is tilted outward as a whole. The tilting of the second column 5 can compress the size of the rear end of the upper air outlet 2 and the size of the front opening of the middle air outlet 4.

[0033] Working principle: When the hair dryer is working, the internal air flows in the air duct. Due to the 90° bend in the air duct and the obstruction caused by the heating wire, the airflow velocity varies, forming a weak airflow zone with a slower upper velocity and a strong airflow zone with a faster lower velocity. The weak airflow flows upward, blocked and guided by the first column 3, and flows to the upper airflow openings 2 on both sides of the first column. The rear surface of the first column 3 is V-shaped, which not only compresses the size of the upper airflow opening 2, but also promotes the airflow to the sides. The second column 5 is tilted outward, further compressing the size of the rear end of the upper airflow opening 2. This forces the weak airflow to accelerate, which can achieve the effect of increasing air pressure. The strong airflow flows downward and is discharged through multiple sets of lower airflow openings 7 distributed in a semi-circular rotating array. The large number of lower airflow openings 7 and their specific array arrangement are conducive to the even discharge of strong airflow. The third column 6 is located between two adjacent sets of lower airflow openings 7, which at the same time separates the weak airflow zone and the strong airflow zone, ensuring that the airflow is relatively independent and reducing mutual interference.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended 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 described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air outlet structure of an electric hair dryer, comprising a shell (1), a mounting sleeve (9) is fixedly connected to the rear end of the shell (1), characterized in that: The front surface of the shell (1) is provided with a first column (3) near the top end position, the front surface of the shell (1) is provided with an upper air inlet (2) near the left and right sides of the first column (3) respectively, the front surface of the shell (1) is provided with a third column (6) near the left and right sides respectively, the front surface of the shell (1) is provided with a middle air inlet (4) near the upper surface position of the third column (6), the front surface of the shell (1) is provided with a second column (5) near the middle position between the middle air inlet (4) and the upper air inlet (2), the front surface of the shell (1) is provided with a lower air inlet (7) near the lower end position, the lower air inlet (7) is provided with multiple groups, multiple groups of the lower air inlet (7) are arranged in a semicircular rotating array with the center line of the shell (1) as the rotating axis, and a third column (6) is arranged between adjacent two groups of the lower air inlet (7), and the outer wall of the mounting sleeve (9) is provided with a mounting assembly.

2. The air outlet structure of an electric hair dryer according to claim 1, wherein: The front surface of the shell (1) is provided with a mounting groove (11), and the front surface of the shell (1) is provided with a push plate (8) above the mounting groove (11).

3. The air outlet structure of an electric hair dryer according to claim 1, wherein: The mounting assembly comprises a positioning column (12), the front end of the positioning column (12) is fixedly connected to the rear end of the shell (1), the rear end of the shell (1) is provided with a fixed plate (14) and the number is four groups.

4. The air outlet structure of an electric hair dryer according to claim 3, wherein: Four groups of the fixed plate (14) are arranged in a cross shape.

5. The air outlet structure of an electric hair dryer according to claim 3, wherein: The outer wall of the mounting sleeve (9) is provided with a guide groove (10).

6. The air outlet structure of an electric hair dryer according to claim 5, wherein: The rear surface of the shell (1) is provided with a clamping plate (13), and the outer wall of the shell (1) is provided with a notch groove (15).

7. The air outlet structure of an electric hair dryer according to claim 1, wherein: The rear surface of the first column (3) is arranged in a V shape.

8. The air outlet structure of an electric hair dryer according to claim 1, wherein: The second column (5) is inclined outward as a whole.

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