Low-noise air inlet structure of high-speed electric hair drier

Abstract

The utility model relates to the technical field of household appliances, in particular to a low-noise air inlet structure of a high-speed electric hair drier. According to the technical scheme, the low-noise air inlet structure of the high-speed electric hair drier comprises a supporting frame, a metal filter screen and a fixed shell, the supporting frame is fixedly arranged at the bottom end of a handle of a high-speed electric hair drier body, and the metal filter screen is fixedly arranged on the outer side of the supporting frame in a sleeving mode. The fixed shell sleeves the outer side of the metal filter screen and is connected with the handle shell; and a reinforcing ring is arranged on the metal filter screen. The high-speed electric hair drier has the advantages that the transverse reinforcing rings are arranged on the metal filter screen, the stability of the metal filter screen can be effectively improved, the supporting face of the supporting frame and the metal filter screen can be reduced, the air inlet efficiency can be improved, meanwhile, noise generated by shaking of the metal filter screen can be effectively reduced, and the use performance of the high-speed electric hair drier can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a low-noise air inlet structure for a high-speed hair dryer. Background Art

[0002] A high-speed hair dryer is a new type of hair dryer. Compared with a hair dryer with a traditional structure, its main feature lies in its air inlet and outlet structure. The air inlet of the high-speed hair dryer is arranged at the bottom of the handle. A high-speed blower is also arranged inside the handle to blow air into the cylinder at the upper end of the handle, and finally it is blown out from the air outlet through the air duct inside the cylinder. At the air inlet at the bottom of the handle, a metal filter screen needs to be set to prevent foreign objects from being inhaled and damaging the hair dryer. Since the metal filter screen is relatively thin and has a low hardness, a support frame is needed to support and fix it. In order to improve the support for the metal filter screen, vertical and horizontal support rods need to be arranged on the support frame at the same time. Since the external air enters from the air inlet at the bottom of the handle and flows upward, the horizontal support rod will block the air flow. On the one hand, it affects the air inlet efficiency, and on the other hand, noise will occur due to the direct blockage of the air flow; while removing the horizontal support rod will affect the support performance of the metal filter screen, and the metal filter screen is also prone to vibration and generate noise under the blowing of the air. And removing the horizontal support rod and increasing the support surface of the vertical support rod for the metal filter screen will reduce the air inlet, affecting the air inlet efficiency. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a low-noise air inlet structure for a high-speed hair dryer, specifically to provide an air inlet structure for a high-speed hair dryer that can balance the air inlet efficiency and low noise.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A low-noise air inlet structure for a high-speed hair dryer, including a support frame, a metal filter screen and a fixed shell. The support frame is fixedly arranged at the bottom end of the handle of the high-speed hair dryer main body. The metal filter screen is sleeved and fixed on the outside of the support frame. The fixed shell is sleeved on the outside of the metal filter screen and connected to the handle shell; a reinforcing ring is arranged on the metal filter screen.

[0005] Specifically, the support frame includes a vertical support rod and a connection base fixedly connected to the bottom end of the vertical support rod.

[0006] Specifically, a wind guide plate inclined upward toward the inside is arranged on the connection base.

[0007] Specifically, the overall structure of the support frame is smaller at the lower end and larger at the upper end. Correspondingly, the metal filter screen is in the shape of a frustum cylinder with a smaller diameter at the lower end and a larger diameter at the upper end.

[0008] The beneficial effects of the present utility model are as follows: By arranging a transverse reinforcing ring on the metal filter screen, the stability of the metal filter screen can be effectively improved, which can not only reduce the supporting surface between the support frame and the metal filter screen, improve the air intake efficiency, but also effectively reduce the noise generated by the vibration of the metal filter screen, and improve the performance of the high-speed hair dryer. Description of the Drawings

[0009] Appendix Figure 1 It is a split structure diagram of the low-noise air intake structure of the high-speed hair dryer in the embodiment;

[0010] Appendix Figure 2 It is a schematic structural diagram of the metal filter screen sleeved on the support frame in the embodiment. Detailed Embodiment

[0011] Embodiment 1, referring to Figure 1 , the present utility model adopts the following technical solution: A low-noise air intake structure of a high-speed hair dryer, including a support frame 1, a metal filter screen 2 and a fixed housing 3. The support frame 1 is fixedly arranged at the bottom end of the handle of the high-speed hair dryer main body. The metal filter screen 2 is sleeved and fixed on the outside of the support frame 1. The fixed housing 3 is sleeved on the outside of the metal filter screen 2 and connected to the handle housing. A reinforcing ring 21 is arranged on the metal filter screen 2.

[0012] In this embodiment, the support frame 1 is fixed to the bottom of the handle of the high-speed hair dryer for fixing the metal filter screen 2 and for installing and fixing the housing 3. Among them, the metal filter screen 2 is made of a metal sheet rolled into a cylindrical shape, and filter holes are distributed on the metal sheet to allow air to pass through. At the same time, a reinforcing ring 21 is provided on the metal filter screen 2. The reinforcing ring 21 is preferably horizontally arranged at the middle position of the metal filter screen 2. Since the metal filter screen 2 is relatively thin, when air passes through the metal filter screen 2, the metal filter screen 2 is prone to vibration in the vertical direction, thus generating relatively large noise. By arranging the reinforcing ring 21 in the middle, the stability of the metal filter screen 2 can be effectively improved, and the noise generated when air passes through can be effectively reduced. Therefore, the supporting surface between the support frame 1 and the metal filter screen 2 in this embodiment can be reduced, thereby improving the air intake efficiency. Specifically, the reinforcing ring 21 of the metal filter screen 2 can be integrally formed with the metal filter screen 2. When processing the filter holes on the metal sheet of the metal filter screen 2, the middle position of the metal sheet can be avoided so that a reinforcing ring 21 is formed at this position. On the one hand, the reinforcing ring 21 on the metal filter screen 2 can improve the stability of the cylindrical metal filter screen 2, and no additional noise will be generated when air passes through because it is integrally connected with the metal filter screen 2. Specifically, when using a conventional metal filter screen 2, in order to effectively support the metal filter screen 2 and prevent it from vibrating in the vertical direction when air passes through, the conventional support frame 1 needs to adopt a combination of a horizontal support rod and a vertical support rod. According to the description of the background technology, such a structure will not only affect the air intake efficiency, but also the horizontal support rod on the support frame 1 is prone to generate noise due to blocking the air flow. In this embodiment, since the metal filter screen 2 already has a horizontal reinforcing ring 21, the support frame 1 does not require a horizontal support rod. The support frame 1 includes a vertical support rod 11 and a connection base 12 fixedly connected to the bottom end of the vertical support rod 11, thereby avoiding the additional noise generated by setting a horizontal support rod.

[0013] In a further preferred embodiment, a wind guide plate 13 inclined upward toward the inside is provided on the connection base 12; by providing the wind guide plate 13 inclined upward toward the inside on the connection base 12 of the support frame 1, the air entering from the bottom of the handle can be guided, thereby improving the air intake efficiency.

[0014] Preferably, the overall structure of the support frame 1 is smaller at the lower end and larger at the upper end. Correspondingly, the metal filter screen 2 is in the shape of a frustum cylinder with a smaller diameter at the lower end and a larger diameter at the upper end. Since the air flows upward from the bottom of the handle, by setting the overall structure of the support frame 1 to be larger at the upper end and smaller at the lower end, the air duct at the air intake can be further optimized, and the air flow efficiency can be improved.

[0015] Of course, the above is only the preferred embodiment of the present invention, and it does not limit the scope of use of the present invention. Therefore, all equivalent changes made on the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-noise air inlet structure for a high-speed hair dryer, characterized in that: It includes a support frame, a metal filter and a fixed shell. The support frame is fixedly arranged at the bottom end of the handle of the high-speed hair dryer body, the metal filter is fixedly sleeved on the outside of the support frame, and the fixed shell is sleeved on the outside of the metal filter and connected to the handle shell; a horizontal reinforcement ring is arranged in the middle position of the metal filter, and the reinforcement ring of the metal filter is integrally formed and connected with the metal filter.

2. The low-noise air inlet structure of a high-speed hair dryer according to claim 1, characterized in that: The support frame includes a vertical support rod and a connection base fixedly connected to the bottom end of the vertical support rod.

3. The low-noise air inlet structure of a high-speed hair dryer according to claim 2, characterized in that: The connecting base is provided with an air guide plate inclined upwardly and inwardly.

4. The low-noise air inlet structure of a high-speed hair dryer according to claim 1, characterized in that: The support frame as a whole has a structure that is small at the lower end and large at the upper end. Correspondingly, the metal filter is in the shape of a truncated cone with a diameter at the lower end being smaller than that at the upper end.

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