Noise reduction structure of air outlet of electric hair drier

Abstract

The utility model discloses an electric hair drier air outlet noise reduction structure which comprises an electric hair drier shell, an air inlet duct and an air outlet duct communicated with the air inlet duct are arranged in the electric hair drier shell, a fan for supplying air towards the air outlet duct is arranged in the air inlet duct, the air outlet duct is annular, an annular reflecting piece is arranged in the air outlet duct, and the reflecting piece is arranged on the air inlet duct. The longitudinal section is parallel to the left-right direction of the air outlet duct, and the right side of the longitudinal section is arc-shaped; the reflecting part is arranged in the air outlet duct, the side, close to the fan, of the reflecting part is arc-shaped, noise generated by the fan is reflected under the action of the arc-shaped surface after impacting the reflecting part, and then part of the noise is reflected and is not ejected out of the electric hair drier, so that part of the noise of the fan is effectively prevented from overflowing outwards, and the service life of the electric hair drier is prolonged. And the noise of the electric hair drier is reduced.

Description

Technical Field

[0001] The utility model relates to the field of hair dryers, in particular to a noise reduction structure for the air outlet of a hair dryer. Background Art

[0002] In the existing hair dryer, the motor, the heating wire and the air outlet are arranged in a straight line in sequence. This arrangement will make the noise of the hair dryer relatively large. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a noise reduction structure for the air outlet of a hair dryer.

[0004] The noise reduction structure for the air outlet of a hair dryer according to the first aspect embodiment of the utility model includes a hair dryer housing. An air inlet duct and an air outlet duct communicating with the air inlet duct are provided in the hair dryer housing. A blower for blowing air towards the air outlet duct is arranged in the air inlet duct. The air outlet duct is annular. An annular reflecting member is arranged in the air outlet duct. The reflecting member has a longitudinal section. The longitudinal section is parallel to the left-right direction of the air outlet duct. The right side of the longitudinal section is arc-shaped.

[0005] The noise reduction structure for the air outlet of a hair dryer according to the embodiment of the utility model has at least the following technical effects: A reflecting member is arranged in the air outlet duct, and the side of the reflecting member close to the blower is arc-shaped. After the noise generated by the blower impacts the reflecting member, the noise is reflected under the action of the arc-shaped surface. Thus, part of the noise is not emitted outside the hair dryer due to reflection, effectively blocking part of the blower noise from overflowing outward and reducing the noise of the hair dryer.

[0006] According to some embodiments of the utility model, the height H1 of the longitudinal section gradually increases first and then gradually decreases in the air outlet direction of the air outlet duct.

[0007] According to some embodiments of the utility model, the longitudinal section is in a water droplet shape.

[0008] According to some embodiments of the utility model, the hair dryer housing has an annular inner wall and an annular outer wall. The outer wall is located inside the inner wall. The outer wall and the inner wall enclose to form the air outlet duct. The distance between the inner wall and the outer wall is defined as the cavity height H2. The air outlet duct includes a first duct section and a second duct section located on the right side of the first duct section. The reflecting member is located in the second duct section. The cavity height H2 at the second duct section gradually decreases along the air outlet direction of the air outlet duct.

[0009] According to some embodiments of the utility model, the cavity height H2 at the first duct section gradually increases along the air outlet direction of the air outlet duct.

[0010] According to some embodiments of the present utility model, the reflecting member is located at an intermediate position between the inner wall and the outer wall, and the maximum height H1 of the longitudinal section is greater than or equal to the cavity height H2 at the left end of the second air duct section.

[0011] According to some embodiments of the present utility model, the air inlet duct is further provided with a heating element, and the heating element is located between the air outlet duct and the blower.

[0012] According to some embodiments of the present utility model, the hair dryer housing includes an outer shell and a heating support member provided inside the outer shell. The air outlet duct is provided on the heating support member, the heating element is mounted on the heating support member, and the reflecting member is mounted on the heating support member through a bracket.

[0013] According to some embodiments of the present utility model, an installation groove for snap-connecting with a nozzle accessory is provided at one end of the heating support member away from the heating element.

[0014] According to some embodiments of the present utility model, both the inner wall and the outer wall are arc surfaces.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a cross-sectional view of the noise reduction structure at the air outlet of the hair dryer according to an embodiment of the present utility model;

[0018] Figure 2 is Figure 1 an enlarged view of part A in

[0019] Figure 3 is a schematic structural view of the left end of the heating support member;

[0020] Figure 4 is a schematic structural view of the connection between the reflecting member and the bracket;

[0021] Figure 5 is a schematic structural view of the reflecting member mounted on the heating support member.

[0022] Reference numerals: hair dryer housing 100, air inlet duct 110, air outlet duct 120, inner wall 121, outer wall 122, first air duct section 123, second air duct section 124, heating support member 130, installation groove 131, blower 200, reflecting member 300, bracket 320, longitudinal section 310, heating element 400. Detailed implementation manners

[0023] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the up, down, left, right, etc. indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0026] In the description of the present utility model, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0027] Refer to Figure 1 、 2 As shown, the noise reduction structure of the air outlet of the hair dryer according to the embodiment of the present utility model includes a hair dryer housing 100. There is an air inlet duct 110 and an air outlet duct 120 communicated with the air inlet duct 110 in the hair dryer housing 100. A blower 200 for sending air towards the air outlet duct 120 is arranged in the air inlet duct 110. As Figure 3 、 4 shown, the air outlet duct 120 is annular, and an annular reflector 300 is arranged in the air outlet duct 120. As Figure 2 shown, the reflector 300 has a longitudinal section 310, the longitudinal section 310 is parallel to the left - right direction of the air outlet duct 120, and the right side of the longitudinal section 310 is arc - shaped.

[0028] As Figure 1 、 2 shown, a reflector 300 is arranged in the air outlet duct 120, and the side of the reflector 300 close to the blower 200 is arc - shaped. AsFigure 1 As shown in the noise path in

[0029] During operation, as Figure 1 、 2 shown, when the fan 200 starts, air enters the air inlet duct 110 and then is discharged from the air outlet duct 120. Among them, when passing through the air outlet duct 120, the air impacts the reflector 300, and the reflector 300 divides the air outlet duct 120 into two upper and lower ducts. After the air passes through the two ducts and then combines into one, the reflector 300 will not affect the air velocity and air pressure in the duct; and the noise generated by the fan 200 during operation impacts the reflector 300 and is reflected in different directions, so that part of the noise cannot be discharged outside the hair dryer housing 100, effectively blocking part of the noise of the fan 200 from overflowing outward.

[0030] Specifically, the air outlet duct 120 and the fan 200 are arranged in sequence along a straight line.

[0031] In some embodiments of the present invention, as Figure 2 shown, the height H1 of the longitudinal section 310 first gradually increases and then gradually decreases in the air outlet direction of the air outlet duct 120 (the air outlet duct 120 discharges air to the left), making the noise reflection effect better and better guiding the flow of air. Specifically, the height H1 of the longitudinal section 310 gradually increases from the right end to the middle of the longitudinal section 310, and then gradually decreases from the middle to the left end of the longitudinal section 310.

[0032] In a further embodiment of the present invention, as Figure 2 shown, the longitudinal section 310 is in the shape of a water droplet, making the noise reflection effect of the reflector 300 better.

[0033] In a further embodiment of the present invention, as Figure 2 shown, the hair dryer housing 100 has an annular inner wall 121 and an annular outer wall 122. The outer wall 122 is located inside the inner wall 121, and the outer wall 122 and the inner wall 121 enclose the air outlet duct 120. The distance between the inner wall 121 and the outer wall 122 is defined as the cavity height H2. The air outlet duct 120 includes a first duct section 123 and a second duct section 124 located on the right side of the first duct section 123. The reflector 300 is located in the second duct section 124. The cavity height H2 at the second duct section 124 gradually decreases along the air outlet direction of the air outlet duct 120, so that the second duct section 124 is in the shape of a horn, making the reflector 300 better reflect noise and ensuring that the reflector 300 will not affect the air velocity and air pressure in the duct.

[0034] In a further embodiment of the present utility model, as Figure 2 shown, the cavity height H2 at the first air duct section 123 gradually increases along the air outlet direction of the air outlet duct 120, ensuring that the reflector 300 does not affect the air velocity and air pressure of the air duct.

[0035] In a further embodiment of the present utility model, as Figure 2 shown, the reflector 300 is located at the middle position between the inner wall 121 and the outer wall 122, and the maximum height H1 of the longitudinal section 310 is greater than or equal to the cavity height H2 at the left end 1241 of the second air duct section 124. When the user looks out at the air outlet duct 120 in the right direction, the line of sight is blocked by the reflector 300, so that the user cannot see the fan 200 or the heating element 400 from the air outlet duct 120. With such a setting, the reflector 300 can prevent the user from touching the internal structure of the hair dryer housing 100 with a slender metal object, thereby reducing potential safety hazards, and allowing the wind to blow out while part of the noise is reflected by the reflector 300.

[0036] In some embodiments of the present utility model, as Figure 1 shown, the air inlet duct 110 is further provided with a heating element 400, and the heating element 400 is located between the air outlet duct 120 and the fan 200, enabling the hair dryer housing 100 to have the functions of blowing cold air and hot air.

[0037] In a further embodiment of the present utility model, as Figure 1 、 3 、4、5 shown, the hair dryer housing 100 includes an outer shell and a heating support member 130 provided inside the outer shell. The air outlet duct 120 is arranged on the heating support member 130, the heating element 400 is installed on the heating support member 130, and the reflector 300 is installed on the heating support member 130 through a bracket 320. The reflector 300 and the heating element 400 are jointly installed on the heating support member 130, which is convenient for installation.

[0038] In a further embodiment of the present utility model, as Figure 3 shown, an installation groove 131 for snap - connecting with a nozzle accessory is provided at one end of the heating support member 130 away from the heating element 400. By providing the installation groove 131, the hair dryer housing 100 can be connected to different nozzle accessories, improving the applicability of the hair dryer.

[0039] In a further embodiment of the present utility model, as Figure 2 shown, both the inner wall 121 and the outer wall 122 are arc - shaped, enabling the air outlet duct 120 to have smooth air outlet.

[0040] In the description of this specification, the descriptions referring to terms such as "some embodiments" or "it is conceivable that" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0041] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A hair dryer outlet noise reduction structure, characterized in that: include: A hair dryer shell, wherein the hair dryer shell has an air inlet duct and an air outlet duct connected to the air inlet duct, the air inlet duct is provided with a fan for supplying air toward the air outlet duct, the air outlet duct is annular, and the air outlet duct is provided with an annular reflector, the reflector has a longitudinal cross-section, the longitudinal cross-section is parallel to the left and right directions of the air outlet duct, and the right side of the longitudinal cross-section is arc-shaped.

2. The hair dryer outlet noise reduction structure according to claim 1, characterized in that: The height H1 of the longitudinal section first gradually increases and then gradually decreases in the air outlet direction of the air outlet duct.

3. The hair dryer outlet noise reduction structure according to claim 2, characterized in that: The longitudinal section is in the shape of a water drop.

4. The hair dryer outlet noise reduction structure according to claim 2, characterized in that: The hair dryer shell has an annular inner wall and an annular outer wall, the outer wall is located inside the inner wall, and the outer wall and the inner wall enclose the air outlet duct, and the distance between the inner wall and the outer wall is defined as the cavity height H2. The air outlet duct includes a first air duct section and a second air duct section located on the right side of the first air duct section. The reflector is located in the second air duct section, and the cavity height H2 at the second air duct section gradually decreases along the air outlet direction of the air outlet duct.

5. The hair dryer outlet noise reduction structure according to claim 4, characterized in that: The cavity height H2 at the first air duct section gradually increases along the air outlet direction of the air outlet duct.

6. The hair dryer outlet noise reduction structure according to claim 4 or 5, characterized in that: The reflector is located in the middle between the inner wall and the outer wall, and the maximum height H1 of the longitudinal section is greater than or equal to the cavity height H2 at the left end of the second air duct segment.

7. The hair dryer outlet noise reduction structure according to claim 1, characterized in that: The air inlet duct is further provided with a heating element, and the heating element is located between the air outlet duct and the fan.

8. The hair dryer outlet noise reduction structure according to claim 7, characterized in that: The hair dryer housing includes an outer shell and a heating support arranged in the outer shell, the air outlet duct is arranged on the heating support, the heating element is installed on the heating support, and the reflector is installed on the heating support through a bracket.

9. The hair dryer outlet noise reduction structure according to claim 8, characterized in that: An end of the heating support away from the heating element is provided with a mounting groove which is snap-connected with the nozzle accessory.

10. The hair dryer outlet noise reduction structure according to claim 4, characterized in that: Both the inner wall and the outer wall are curved surfaces.

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