Air outlet structure of electric hair drier

Abstract

The invention relates to the field of blowers, and discloses an electric hair drier air outlet structure which comprises a shell, a mounting sleeve is fixedly connected to the rear end of the shell, a first stand column is arranged at the position, close to the top end, of the front surface of the shell, and upper air openings are formed in the left side and the right side, close to the first stand column, of the front surface of the shell correspondingly; 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 invention, by changing the traditional equipartition design into the arrangement of 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] The present invention relates to the field of hair dryers, and particularly to an air outlet structure of a hair dryer. Background Art

[0002] A hair dryer, also known as a blower, is a common electrical appliance mainly used for local drying, heating, etc. in daily life. There are also high-speed hair dryers in the prior art, which have a greater power and stronger wind force. Compared with traditional hair dryers, they have significant improvements in terms of hair drying speed, hair care effect, user experience, etc.

[0003] When a high-speed hair dryer is in use, when the air inside it flows, due to a 90° bend in the internal air duct of the device and the air being blocked by structures such as heating wires when passing through, the air speed in the air duct is not the same. When the air is accelerated through the air outlet, the imbalance of air pressure at each air outlet point at the air outlet will be aggravated. In this way, the air will cross and collide at the air outlet, forming eddy currents. This causes a buzzing vibration sound to occur when the overall device is in use, affecting the user experience. Therefore, an air outlet structure of a hair dryer is proposed to solve the above problems. Summary of the Invention

[0004] In order to make up for the above deficiencies, the present invention provides an air outlet structure of a hair dryer, aiming to improve the problem in the prior art that "due to the imbalance of air pressure at each blowing point when a high-speed hair dryer blows air, a buzzing vibration sound will occur when the high-speed hair dryer is in use".

[0005] In order to achieve the above object, the present invention adopts the following technical solution: An air outlet structure of a hair dryer includes a housing. An installation sleeve is fixedly connected to the rear end of the housing. A first upright post is provided at a position near the top of the front surface of the housing. Upper air outlets are respectively provided on the left and right sides of the front surface of the housing near the first upright post. Third upright posts are respectively provided on the left and right sides of the front surface of the housing. A middle air outlet is provided at a position on the upper surface of the front surface of the housing near the third upright post. A second upright post is provided at a position between the middle air outlet and the upper air outlet on the front surface of the housing. A lower air outlet is provided at a position near the lower end of the front surface of the housing. Multiple groups of lower air outlets are arranged in a semicircular rotational array with the center line of the housing as the rotation axis. A third upright post is provided between adjacent two groups of lower air outlets. An installation component is provided on the outer wall of the installation sleeve.

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

[0007] An installation groove is provided on the front surface of the housing, and a dial is provided above the installation groove on the front surface of the housing.

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

[0009] The installation component includes positioning columns, the front ends of the positioning columns are fixedly connected to the rear end of the housing, and the rear end of the housing is provided with fixing plates, and the number of the fixing plates is four groups.

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

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

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

[0013] The outer wall of the installation sleeve is provided with a guiding 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 groove.

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

[0017] The rear surface of the first column is arranged in a V shape.

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

[0019] The second column is integrally inclined outward.

[0020] The present invention has the following beneficial effects:

[0021] 1. In the present invention, by changing the traditional uniform distribution design to set an upper air outlet, a middle air outlet and a lower air outlet, since the larger the diameter of the air flow channel, the smaller the air velocity and the air pressure is proportional to the square of the air flow velocity, changing the aperture size can change the air volume at the air outlet, so that the air volume at each air outlet position of the whole device can be changed, the local air pressure outside the air outlet can be made similar, and thus the low-frequency wind sound can be weakened and the user experience can be improved.

[0022] 2. In the present invention, the improvement of the whole device can be realized by changing the shapes and setting directions of the first column, the second column and the third column. After putting into production, the original production model of the original product does not need to be changed too much to realize the improvement, so that the overall production cost can be reduced. Description of the Drawings

[0023] Figure 1 It is a three-dimensional structure schematic diagram of the whole device in the present invention;

[0024] Figure 2 It is a side view schematic diagram of the three-dimensional structure of the whole device in the present invention;

[0025] Figure 3 It is a rear view schematic diagram of the whole device in the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the three-dimensional structure of the overall device in the present invention.

[0027] Legend:

[0028] 1. Housing; 2. Upper air inlet; 3. First upright column; 4. Middle air inlet; 5. Second upright column; 6. Third upright column; 7. Lower air inlet; 8. Deflector; 9. Mounting sleeve; 10. Guide groove; 11. Mounting groove; 12. Positioning post; 13. Clamping plate; 14. Fixed plate; 15. Notch groove. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Referring to Figure 1 - Figure 3 , an embodiment provided by the present invention: an air outlet structure of a hair dryer, including a housing 1 for guiding the flow of air. The rear end of the housing 1 is fixedly connected with a mounting sleeve 9 for fixing the overall device. Since the air will pass through a right-angle air duct when passing through the hair dryer and will be blocked by the structure, there will be a difference in the flow rates of the upper air and the lower air. For the convenience of description, in this case, the air with a slower flow rate in the upper layer is named weak wind, and the air with a faster flow rate in the lower layer is named strong wind. The area through which the weak wind passes is named the weak wind area, and the area through which the strong wind passes is named the strong wind area. A first upright column 3 for blocking the air flow is provided at a position near the top of the front surface of the housing 1. Upper air inlets 2 for allowing the weak wind to pass through are respectively provided on the left and right sides of the front surface of the housing 1 near the first upright column 3. Third upright columns 6 for separating the weak wind area and the strong wind area are respectively provided on the left and right sides of the front surface of the housing 1. A middle air inlet 4 is provided at a position near the upper surface of the front surface of the housing 1 near the third upright column 6. A second upright column 5 for controlling the sizes of the upper air inlet 2 and the middle air inlet 4 is provided at a position between the middle air inlet 4 and the upper air inlet 2 on the front surface of the housing 1. A lower air inlet 7 for discharging the strong wind is provided at a position near the lower end of the front surface of the housing 1. There are multiple groups of lower air inlets 7, and the multiple groups of lower air inlets 7 are arranged in a semicircular rotational array with the center line of the housing 1 as the rotation axis. The rotational array arrangement can facilitate the uniform discharge of the strong wind. Third upright columns 6 are provided between adjacent two groups of lower air inlets 7. Mounting components are provided on the outer wall of the mounting sleeve 9. The first upright column 3 has a thickness of 3.32 mm, the second upright column 5 has a thickness of 2.6 mm, and the third upright column 6 has a thickness of 1.69 mm. Since the thicknesses of the three upright columns are different, the sizes of the upper air inlet 2, the middle air inlet 4, and the lower air inlet 7 are also limited. The specific area sizes are that the lower air inlet 7 is larger than the middle air inlet 4, and the middle air inlet 4 is larger than the upper air inlet 2.

[0031] Refer to Figure 2 - Figure 4 , a mounting groove 11 for mounting a nozzle is provided on the front surface of the housing 1. A flap 8 for blocking the nozzle is provided above the mounting groove 11 on the front surface of the housing 1. The mounting assembly includes a positioning post 12 for mounting a bolt. The front end of the positioning post 12 is fixedly connected to the rear end of the housing 1. Four fixing plates 14 are provided at the rear end of the housing 1. The fixing plates 14 can be used to position the positioning post 12. The four fixing plates 14 are arranged in a cross shape. When installing the housing 1, first, the mounting sleeve 9 needs to be inserted into the blower. Then, with the help of the fixing plates 14, the position of the mounting sleeve 9 can be positioned. Finally, the positioning post 12 can be fixed by installing bolts.

[0032] Refer to Figure 2 - Figure 4 , a guiding groove 10 for guiding the orientation of the mounting sleeve 9 is provided on the outer wall of the mounting sleeve 9. A clamping plate 13 for fixing the housing 1 is provided on the rear surface of the housing 1. By providing the clamping plate 13, the housing 1 can be prevented from rotating during use. A notch groove 15 is provided on the outer wall of the housing 1. A boss is provided at the blower installation position and can be inserted into the notch groove 15. The rear surface of the first upright 3 is arranged in a V shape. The V-shaped design can compress the size of the upper air inlet 2 and at the same time guide the air to flow to both sides of the first upright 3. The second upright 5 is integrally inclined outward. The inclined setting of the second upright 5 can compress the size of the rear end of the upper air inlet 2 and at the same time compress the size of the front opening of the middle air inlet 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 being blocked by the heating wire, etc., the air flow velocity shows a difference, forming a weak air flow area with a slower flow velocity in the upper layer and a strong air flow area with a faster flow velocity in the lower layer. The weak air flows upward, is blocked and guided by the first upright 3, and flows to the upper air inlets 2 on both sides of the first upright. The rear surface of the first upright 3 is in a V shape, which not only compresses the size of the upper air inlet 2 but also promotes the air to flow to both sides. The second upright 5 is inclined outward, further compressing the size of the rear end of the upper air inlet 2. In this way, the weak air can be forced to accelerate, and the effect of improving the air pressure can be achieved. The strong air flows downward and is discharged through a plurality of lower air inlets 7 arranged in a semicircular rotating array. The number of the lower air inlets 7 is large and arranged in a specific array, which is beneficial to the uniform discharge of the strong air. The third upright 6 is located between two adjacent lower air inlets 7, and at the same time separates the weak air area and the strong air area, ensuring that the air flows are relatively independent and reducing mutual interference.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hair dryer air outlet structure, comprising a housing (1), a mounting sleeve (9) being fixedly connected to the rear end of the housing (1), characterized in that: A first column (3) is arranged near the top position of the front surface of the shell (1); upper air outlets (2) are arranged on the left and right sides of the front surface of the shell (1) near the first column (3); third columns (6) are arranged near the left and right sides of the front surface of the shell (1); a middle air outlet (4) is arranged near the upper surface of the third column (6) on the front surface of the shell (1); a second column (5) is arranged near the middle position between the middle air outlet (4) and the upper air outlet (2) on the front surface of the shell (1); lower air outlets (7) are arranged near the lower end position of the front surface of the shell (1); a plurality of groups of lower air outlets (7) are arranged in a semicircular rotating array with the center line of the shell (1) as the rotation axis; a third column (6) is arranged between two adjacent groups of lower air outlets (7); and an installation component is arranged on the outer wall of the installation sleeve (9).

2. The hair dryer air outlet structure according to claim 1, characterized in that: 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 shift plate (8) above the mounting groove (11).

3. The hair dryer air outlet structure according to claim 1, characterized in that: The mounting assembly comprises a positioning column (12), the front end of the positioning column (12) being fixedly connected to the rear end of the housing (1), and the rear end of the housing (1) is provided with four sets of fixing plates (14).

4. The hair dryer air outlet structure according to claim 3, characterized in that: The four groups of fixing plates (14) are arranged in a cross shape.

5. The hair dryer air outlet structure according to claim 3, characterized in that: The outer wall of the installation sleeve (9) is provided with a guide groove (10).

6. The hair dryer air outlet structure according to claim 5, characterized in that: 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 hair dryer air outlet structure according to claim 1, characterized in that: The rear surface of the first column (3) is arranged in a V shape.

8. The hair dryer air outlet structure according to claim 1, characterized in that: The second upright column (5) is arranged to be tilted outward as a whole.

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