Noise reduction structure of blower and blower

Abstract

The utility model provides a noise reduction structure of an air blower, which comprises a handle, a heating wire mica sheet and an air duct with a built-in fan, and the heating wire mica sheet is arranged in the air duct. An inclined transition face located on the air outlet side of the fan is arranged between the edge of the end, located in the air duct, of the heating wire mica sheet and the inner wall of the handle. According to the utility model, the inclined transition surface forms a complete barrier-free smooth air duct, and the air duct is not blocked by a barrier, so that high-speed airflow blown by the fan cannot generate turbulence and resonance, wind generated by the fan cannot generate the turbulence phenomenon due to the blocking of the heating wire mica sheet, the resonance phenomenon caused by the turbulence phenomenon can be avoided, and the service life of the fan is prolonged. And the noise generated by turbulent flow is improved.

Description

Technical Field

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

[0002] Many high-speed hair dryers on the market do not consider that the mica sheet of the heating wire is higher than the air outlet, which blocks the wind generated by the high-speed fan. When the wind generated by the fan is blocked by the outer ring of the mica sheet of the heating wire, the wind will naturally be blocked by obstacles and turbulence will occur. The wind direction will change to the opposite direction of the wind generated by the fan, and they will collide with each other to produce resonance, which will increase the noise. For this reason, although some have a U-shaped pit on the outer mica sheet of the heating wire to reduce turbulence, it is not enough to truly avoid turbulence, so there is still a lot of noise. Utility Model Content

[0003] The utility model provides a hair dryer noise reduction structure and a hair dryer to solve at least one of the above technical problems.

[0004] To solve the above-mentioned problem, as one aspect of the utility model, a hair dryer noise reduction structure is provided, comprising: a handle, a heating wire mica sheet and a wind tube with a built-in fan, the heating wire mica sheet being arranged in the wind tube, and an inclined transition surface located on the air outlet side of the fan being arranged between the edge of the heating wire mica sheet at one end of the wind tube and the inner wall of the handle.

[0005] Preferably, the inclined transition surface includes a first inclined transition surface and a second inclined transition surface, and there is a smooth transition between the first inclined transition surface and the second inclined transition surface. An inclined portion having the first inclined transition surface is protrudingly formed on the inner wall of the handle, and a connecting piece having the second inclined transition surface is also provided in the handle, and the connecting piece is provided between the inclined portion and the heating wire mica sheet.

[0006] The utility model also provides a hair dryer, comprising the hair dryer noise reduction structure.

[0007] When the utility model is working, the high-speed steam flow generated by the fan blows toward the heating wire and passes through the inclined transition surface. The inclined transition surface serves as an air flow channel structure. The inclined transition surface forms a complete, barrier-free, smooth air channel. There are no obstacles blocking the air channel. Therefore, the high-speed air flow blown out by the fan will not generate turbulence and resonance. The wind generated by the fan will not generate turbulence due to the obstruction of the mica sheet of the heating wire, and thus will not generate resonance due to the turbulence phenomenon, thereby improving the noise generated by the turbulence. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A three-dimensional diagram of a hair dryer in the utility model is schematically shown;

[0009] Figure 2 A cross-sectional view of a hair dryer in the utility model is schematically shown;

[0010] Figure 3 The exploded view of the noise reduction structure of the hair dryer is schematically shown.

[0011] The reference numerals in the figure are: 1. handle; 2. heating wire mica sheet; 3. air cylinder; 4. first inclined transition surface; 5. second inclined transition surface; 6. inclined portion; 7. connecting piece; 8. fan. DETAILED DESCRIPTION

[0012] The following is a detailed description of the embodiments of the present invention, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0013] As one aspect of the utility model, a hair dryer noise reduction structure is provided, comprising: a handle 1, a heating wire mica sheet 2 and a wind tube 3 with a built-in fan 8, the heating wire mica sheet 2 being arranged in the wind tube 3, and an inclined transition surface located on the air outlet side of the fan 8 is provided between the edge of one end of the heating wire mica sheet 2 located in the wind tube 3 and the inner wall of the handle 1.

[0014] Preferably, the inclined transition surface includes a first inclined transition surface 4 and a second inclined transition surface 5, and the first inclined transition surface 4 and the second inclined transition surface 5 have a smooth transition, and an inclined portion 6 having the first inclined transition surface 4 is protrudingly formed on the inner wall of the handle 1, and a connecting member 7 having the second inclined transition surface 5 is also provided in the handle 1, and the connecting member 7 is provided between the inclined portion 6 and the heating wire mica sheet 2. In this embodiment, in order to solve the problem of wind turbulence caused by the heating wire mica sheet 2, the fan 8 is placed at the highest position of the outer circle of the heating wire mica sheet 2, and is connected with a connecting member 7 with a slope (the second inclined transition surface 5), and at the same time, the position of the air duct blown out by the fan keeps the surface as smooth as possible.

[0015] The utility model also provides a hair dryer, comprising the hair dryer noise reduction structure.

[0016] In the above technical scheme, the noise problem can only be completely solved by solving the turbulence phenomenon caused by wind. When the utility model is working, the high-speed steam flow generated by the fan 8 blows toward the heating wire and passes through the inclined transition surface. The inclined transition surface serves as an air flow channel structure. The inclined transition surface forms a complete, barrier-free and smooth air channel. There are no obstacles blocking the air channel. Therefore, the high-speed airflow blown out by the fan will not generate turbulence and resonance. The wind generated by the fan 8 will not generate turbulence due to the obstruction of the heating wire mica sheet 2, and will not generate resonance due to the turbulence phenomenon, so that the noise generated by the turbulence is improved.

[0017] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hair dryer noise reduction structure, characterized in that: include: A handle (1), a heating wire mica sheet (2) and a wind tube (3) with a built-in fan (8), wherein the heating wire mica sheet (2) is arranged in the wind tube (3), and an inclined transition surface located on the air outlet side of the fan (8) is arranged between the edge of one end of the heating wire mica sheet (2) located in the wind tube (3) and the inner wall of the handle (1); The inclined transition surface comprises a first inclined transition surface (4) and a second inclined transition surface (5), and the first inclined transition surface (4) and the second inclined transition surface (5) have a smooth transition. An inclined portion (6) having the first inclined transition surface (4) is protrudingly formed on the inner wall of the handle (1). A connecting piece (7) having the second inclined transition surface (5) is also provided in the handle (1), and the connecting piece (7) is provided between the inclined portion (6) and the heating wire mica sheet (2).

2. A hair dryer, characterized in that: It includes the hair dryer noise reduction structure as claimed in claim 1.

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