CN215225305U - Blower fan cover - Google Patents

Abstract

The utility model discloses a blower fan cover. The blower fan housing includes a diffuser tab, diffuser teeth, an inner tubular wall and an outer tubular wall to form an inner fluid path and an outer fluid path. The inner fluid path is positioned within the inner tube wall and the outer tube wall extends around the inner tube wall, and wherein the outer fluid path is positioned between the inner tube wall and the outer tube wall. The inner fluid path and the outer fluid path are in communication. The outer pipe wall is provided with an opening and communicated with an outer fluid path; the inner fluid path is communicated with the air dispersing sheet and the air dispersing teeth and is used for sucking air; the wind cover closing-in of the outer pipe wall is longer than the wind cover closing-in of the inner pipe wall.

Description

Blower fan cover

Technical Field

The present invention relates to the field of hand-held household appliances, in particular to a blower housing for hair care and hair dryers and heat-setting brushes for example.

Background

Based on the characteristic that the hair dryer can be rapidly shaped and dried, the hair dryer has a large audience group. The fan unit in the blower can suck air flow from an air inlet of the blower and send the sucked air flow out from an air outlet opposite to the air inlet, so that the drying purpose is achieved. Additionally, hot air blowers (such as heat styling brushes) are used to style hair in either a wet or dry condition. The air outlet of the blower can be connected with a fan cover, the air speed of the air flow can be improved through the fan cover, the air flow can be concentrated, and the purpose of modeling is achieved.

The most important performance for a hair dryer is comfort and safety, and it is generally difficult to compromise both with current hair dryers. Particularly, for the travelling comfort, the most direct problem is the time of hair drying, for the great women of hair volume, often dry the hair and need the time of ten minutes to still need swing, the removal hair-dryer that must not stop blow-dry in-process, waste time and energy, lead to the arm hard, influence and use experience. There are no two ways to dry hair quickly, either to raise the temperature or to increase the air volume. The first approach, commonly used by conventional hair dryers, is to increase the temperature to shorten the time required to dry the hair. The second approach to increase the air volume can only be achieved by increasing the rotational speed of the motor to drive a stronger wind speed.

However, both of these approaches can cause the problem of over-burning of the blower outlet due to the long-term use of the blower, which affects the safety of the blower.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a hair-dryer fan housing, provides the extrinsic cycle when can providing high hot jet air current and mends wind radiating efficiency with higher speed to cause the too high problem of fan housing temperature, thereby promote the security that the hair-dryer used.

In order to solve the technical problem, the utility model discloses a technical scheme provide a hair-dryer fan housing, hair-dryer fan housing includes the air dispersion piece, the wind tooth that looses, interior pipe wall and outer pipe wall to fluid route and outer fluid route in forming. The inner fluid path is positioned within the inner tube wall and the outer tube wall extends around the inner tube wall, and wherein the outer fluid path is positioned between the inner tube wall and the outer tube wall. The inner fluid path and the outer fluid path are in communication. The outer pipe wall is provided with an opening and communicated with an outer fluid path; the inner fluid path is communicated with the air dispersing sheet and the air dispersing teeth and is used for sucking air; the wind cover closing-in of the outer pipe wall is longer than the wind cover closing-in of the inner pipe wall.

In one case, a fan unit driven by a digital high-speed motor draws in air fluid to provide a high-pressure jet of hot air, which over time may cause overheating of the hair dryer, creating a safety hazard. Therefore, the negative pressure existing on the inner fluid path inside the inner pipe wall of the blower fan housing sucks air through the outer fluid path communicated with the inner fluid path to realize air flow balance, thereby cooling the blower fan housing. The utility model discloses a double-deck tubular wall structure of hair-dryer fan housing has formed interior fluid route and outer fluid route. The communication of the inner fluid path and the outer fluid path increases the way of supplementing or discharging air fluid, on one hand, the external circulation air supplementing can be improved, so that the heat dissipation efficiency is accelerated, and on the other hand, the speed of discharging hot air is increased. The fluid in the outer fluid path avoids potential safety hazards caused by overheating the outer tube wall. The air dispersing sheet can generate negative pressure to adsorb hair, so that the scattering of the hair caused by air blowing can be avoided, and the damage to the hair and the scattering of curled hair caused by over-strong hot air during hair blowing can also be avoided.

In a preferred embodiment, the inner tubular wall is slidably connected to an outlet vent of the blower.

In a preferred embodiment, the air dispersing teeth are hollow cylinders or cones, the top of each air dispersing tooth is sealed, and the side face of each air dispersing tooth is provided with an air dispersing groove.

In a preferred embodiment, the air-dispersing sheet is a metal grid provided with a plurality of openings.

In a preferred embodiment, the size of the openings in the peripheral region is larger than the size of the openings in the central region; or the density of the openings in the peripheral region is greater than the density of the openings in the central region.

In a preferred embodiment, the hood of the inner tube wall closes to the outer tube wall.

In a preferred embodiment, the wind dispersing teeth are distributed in an inner circle and an outer circle, and the wind dispersing grooves are oppositely arranged.

In a preferred embodiment, a filter sheet is disposed between the inner tube wall and the diffuser sheet.

Drawings

The invention and its advantages will be better understood by studying the following non-limiting examples, and by studying the detailed description of specific embodiments shown in the appended drawings, in which:

fig. 1 is a perspective view of a blower housing of a blower according to embodiment 1 of the present invention.

Fig. 2 is a sectional structure view of a blower fan cover according to embodiment 1 of the present invention.

Fig. 3 is a side view of a blower housing according to embodiment 1 of the present invention.

Fig. 4 is an exploded view of a blower housing of a blower according to embodiment 2 of the present invention.

Detailed Description

Referring to the drawings, wherein like reference numbers refer to like elements throughout, the principles of the present invention are illustrated as being implemented in a suitable environment. The following description is based on illustrated embodiments of the invention and should not be taken as limiting the invention with regard to other embodiments not described in detail herein.

The word "embodiment" is used herein to mean serving as an example, instance, or illustration. In addition, the articles "a" and "an" as used in this specification and the appended claims may generally be construed to mean "one or more" unless specified otherwise or clear from context to be directed to a singular form.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Further, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise direct contact of the first and second features through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Example 1

First, a blower housing according to embodiment 1 of the present invention will be described with reference to fig. 1 to 3. One technical solution adopted by the present invention is to provide a blower fan housing, as shown in fig. 1, the blower fan housing includes a wind-dispersing sheet 101, wind-dispersing teeth 102, an inner pipe wall 201 and an outer pipe wall 202 to form an inner fluid path 301 and an outer fluid path 302, as shown in fig. 2. The inner fluid path 301 is positioned within the inner tube wall 201 and the outer tube wall 202 extends around the inner tube wall 201, and wherein the outer fluid path 302 is positioned between the inner tube wall 201 and the outer tube wall 202. The outer tubing wall 202 is provided with an aperture 401 and communicates with the outer fluid pathway 302; the inner fluid path 301 is communicated with the air dispersing blades 101 and the air dispersing teeth 102 for sucking air; the outer tube wall fan housing binding off 2021 is longer than the inner tube wall fan housing binding off 2011. The inner fluid path 301 and the outer fluid path 302 communicate at an inner tube wall hood opening 2011. A filter 501 is disposed between the inner pipe wall 201 and the air-dispersing sheet 101.

The hood of the inner pipe wall 201 closes to the outer pipe wall 202. The inner fluid path 301 inside the inner tube wall 201 of the blower fan housing draws out an air flow, a Coanda Effect (Coanda Effect) and a negative pressure are generated near the inner tube wall fan housing closing 2011, and air is sucked through the outer fluid path 302 communicated with the inner fluid path 301 to realize air flow balance, so that the blower fan housing is cooled. The inner pipe wall 201 and the outer pipe wall 202 of the blower housing of the present invention form a double-layer pipe wall structure, defining an inner fluid path 301 and an outer fluid path 302. The inner fluid path 301 and the outer fluid path 302 are communicated near the inner tube wall air cover closing-in 2011, so that a way for supplementing air fluid is added, the external circulation air supplement can be improved, the heat dissipation efficiency is accelerated, and the hot air discharging speed is increased. The fluid in the outer fluid path 302 avoids safety hazards due to overheating of the outer tube wall 202.

As shown in fig. 3, the air-dispersing sheet 101 is a metal grid provided with a plurality of openings 601. The size of the opening hole 6011 located in the peripheral region is larger than the size of the opening hole 6012 located in the central region, and the density of the opening hole 6011 located in the peripheral region is larger than the density of the opening hole 6012 located in the central region. Therefore, the wind pressure of the peripheral area on the wind-dispersing sheet 101 is greater than that of the central area, so as to generate negative pressure to adsorb hair, thereby avoiding the scattering of hair due to wind blowing, and avoiding the damage to hair and the scattering of curly hair caused by over-strong hot wind during hair blowing.

The inner tubular wall 201 is slidably connected to the outlet of the blower.

The air dispersing teeth 102 are hollow cylinders, the top of each air dispersing tooth is sealed, and air dispersing grooves are formed in the side faces of the air dispersing teeth.

The wind-dispersing teeth 102 are distributed in an inner circle and an outer circle, and the wind-dispersing grooves are arranged oppositely.

Example 2

Fig. 4 is an exploded view of embodiment 2 of the present invention. Only the differences between embodiment 2 and embodiment 1 will be described below, and the descriptions of the similarities will be omitted.

A filter 701 is disposed between the inner pipe wall 201 and the air-dispersing sheet 101. The filter 701 prevents hair from being sucked into the blower.

While the invention has been described above with reference to certain embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the various embodiments disclosed herein can be used in any combination with one another, and the description of such combinations is not exhaustive for reasons of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (8)

1. The utility model provides a hair-dryer fan housing, its detachably connects at the air outlet of hair-dryer, its characterized in that: the blower fan cover comprises a wind dispersing sheet, wind dispersing teeth, an inner pipe wall and an outer pipe wall so as to form an inner fluid path and an outer fluid path; the inner fluid path is positioned within the inner tube wall and the outer tube wall extends around the inner tube wall, and wherein the outer fluid path is positioned between the inner tube wall and the outer tube wall; the inner fluid path and the outer fluid path are in communication; the outer pipe wall is provided with an opening and communicated with an outer fluid path; the inner fluid path is communicated with the air dispersing sheet and the air dispersing teeth and is used for sucking air; the wind cover closing-in of the outer pipe wall is longer than the wind cover closing-in of the inner pipe wall.

2. The blower housing of claim 1, wherein the inner tubular wall is slidably connected to an outlet port of the blower.

3. The blower housing as claimed in claim 2, wherein the air dispersing teeth are hollow cylinders or cones with sealed top and air dispersing grooves on the sides.

4. The blower housing of claim 3, wherein the air-dispersing sheet is a metal mesh provided with a plurality of openings.

5. The blower housing of claim 4, wherein the openings in the peripheral region are larger in size than the openings in the central region; or the density of the openings in the peripheral region is greater than the density of the openings in the central region.

6. The blower fan housing of claim 1, wherein the housing mouth of the inner tube wall is proximate to the outer tube wall.

7. The blower housing according to claim 1, wherein the air dispersing teeth are arranged in an inner circle and an outer circle, and the air dispersing slots are arranged oppositely.

8. The blower housing of claim 1, wherein a filter sheet is disposed between the inner duct wall and the diffuser sheet.

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