WO2022016914A1 - Inner barrel apparatus for reducing internal space - Google Patents

Abstract

An inner barrel apparatus for reducing internal space, comprising a barrel body (10). A motor assembly (20) is arranged in the barrel body (10). An air inlet assembly (30) is provided at the rear end of the motor assembly (20). An air duct (40) is provided at the front end of the motor assembly (20). The motor assembly (20) comprises a motor bracket (21) connected to the barrel body (10) and a motor (22) connected to the motor bracket (21). A PCB (50) is connected on the motor bracket (21), an opening (211) is provided on the motor bracket (21) at a position near to the air duct (40), and a power element (51) on the PCB (50) protrudes out from the opening (211). The PCB (50) is located outside the air duct (40), and the power element (51) on the PCB (50) protrudes out of the opening (211) and is located on the side of the inside of the air duct (40), such that the present invention easily facilitates heat dissipation and saves internal space, realizing the effect of shortening the overall length of the inner barrel, while also decreasing air resistance and increasing air volume.

Description

An inner cylinder device for reducing internal space

This application is based on the Chinese patent application with the application number of 202021435593.1 and the filing date of July 20, 2020, and claims its priority. The entire content of this application is hereby incorporated into this application as a whole.

technical field

The present application relates to the technical field of blower air discharge, and more particularly, to an inner cylinder device for reducing the internal space.

Background technique

Hair dryers are small household appliances that are used very frequently in people's daily life. Hair dryers are mainly used for drying and shaping hair. However, the existing hair dryers place heating electronic components in the air duct, resulting in the disadvantages of lengthening the volume and increasing wind resistance.

Application content

The purpose of the present application is to overcome the defects of the prior art and provide an inner cylinder device with a reduced internal space.

To achieve the above purpose, the application adopts the following technical solutions:

An inner cylinder device for reducing internal space, comprising a cylinder body, a motor assembly is arranged inside the cylinder body, an air inlet assembly is arranged at the rear end of the motor assembly, and an air duct is arranged at the front end of the motor assembly, so The motor assembly includes a motor bracket connected with the barrel body, and a motor connected with the motor bracket; a PCB board is connected on the motor bracket, and an opening is provided at the position of the motor bracket close to the air duct , the power components on the PCB board protrude from the opening.

Its further technical scheme is: the PCB board includes an upper PCB board and a lower PCB board; the upper PCB board is arranged on the upper end of the motor bracket, and the lower PCB board is arranged at the lower end of the motor bracket.

Its further technical scheme is: both the upper PCB board and the lower PCB board are connected with the motor bracket through screws.

Its further technical scheme is as follows: the front end of the air duct is provided with an air outlet structure; the air outlet structure comprises a casing connected with the cylinder body, an air outlet assembly arranged at the front end of the casing, and the air outlet The assembly includes a plurality of evenly distributed air outlet parts, and intervals are provided between adjacent air outlet parts, and V-shaped air outlet openings are arranged on the air outlet parts.

Its further technical scheme is: the air outlet is V-shaped.

Its further technical solution is: the number of the air outlet parts is 4-8.

Its further technical solution is: the angle between the left end and the right end of the air outlet is 45°, and the interval is 15°.

Its further technical scheme is: the air outlet assembly and the casing are integrally formed.

Its further technical scheme is: the casing and the barrel are connected by threads.

A further technical solution is: the air inlet component is further provided with an air inlet channel.

Compared with the prior art, the beneficial effects of the present application are: through the cylinder body, a motor assembly is arranged inside the cylinder body, an air inlet assembly is arranged at the rear end of the motor assembly, an air duct is arranged at the front end of the motor assembly, and the motor assembly includes a The motor bracket connected to the body, and the motor connected to the motor bracket, the upper part of the motor bracket is connected with a PCB board, the motor bracket is provided with an opening near the air duct, and the power components on the PCB board protrude from the opening; It is located outside the air duct, and the power components on the PCB board protrude from the opening and are located on the inner side of the air duct, which is convenient for heat dissipation and saves the internal space. , to better meet the needs.

The present application will be further described below with reference to the accompanying drawings and specific embodiments.

Description of drawings

FIG. 1 is a structural diagram 1 of the inner cylinder device for reducing the internal space of the application;

FIG. 2 is a structural diagram 2 of the inner cylinder device for reducing the internal space of the application;

Fig. 3 is the structural diagram 3 of the inner cylinder device for reducing the inner space of the application;

4 is a perspective view of an air outlet structure;

FIG. 5 is a schematic front view of FIG. 4 .

detailed description

In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 It should not be construed as a limitation on this application.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

In this application, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it may be a connection or a detachable connection, It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

As shown in the specific embodiments shown in FIG. 1 to FIG. 5 , the present application discloses an inner cylinder device for reducing internal space, including a cylinder body 10 , a motor assembly 20 is arranged inside the cylinder body 10 , and the motor assembly 20 The rear end of the motor assembly 20 is provided with an air inlet assembly 30, and the front end of the motor assembly 20 is provided with an air duct 40. The motor assembly 20 includes a motor bracket 21 connected with the barrel 10, and a motor bracket 21 connected with the motor bracket 21. Motor 22; a PCB board 50 is connected to the motor bracket 21, an opening 211 is provided at the position of the motor bracket 21 close to the air duct 40, and the power element 51 on the PCB board 50 protrudes from the Opening 211.

Wherein, in this embodiment, the motor 22 is electrically connected to the PCB board 50 .

The motor bracket 21 is provided with an opening 211 at a position close to the air duct 40, and the power element 51 on the PCB board 50 protrudes from the opening 211, so that the PCB board 50 is placed outside the air duct 40, and the power on the PCB board 50 is The element 51 protrudes from the opening 211 and is located at the inner side of the air duct 40, which facilitates heat dissipation and saves the internal space, and plays the role of shortening the overall length of the inner cylinder 10. At the same time, it can also reduce the wind resistance and increase the air volume. It has strong practicability and can better meet the need.

Specifically, as shown in FIGS. 1 to 2 , the PCB board 50 includes an upper PCB board 52 and a lower PCB board 53 ; the upper PCB board 52 is arranged on the upper end of the motor bracket 21 , and the lower PCB board 53 It is arranged at the lower end of the motor bracket 21, which can better utilize the space, make the structure more compact, and dissipate heat from the upper and lower sides, and the heat dissipation speed is faster.

Among them, as shown in FIG. 1 to FIG. 3 , the upper PCB board 52 and the lower PCB board 53 are both connected with the motor bracket 21 by screws, the connection is firm, and it is easy to disassemble and assemble, does not take up space, and also avoids the need for The problems of increased wind resistance and lengthened size of the entire inner cylinder 10 caused by placing the entire PCB board 50 in the air duct 40 .

Specifically, as shown in FIG. 1 to FIG. 2 , the front end of the air duct 40 is provided with an air outlet structure 60 ; the air outlet structure 60 includes a casing 61 connected with the cylinder body 10 , and is provided in the casing The air outlet assembly 62 at the front end of the body 61, the air outlet assembly 62 includes a plurality of evenly distributed air outlet parts 621, the adjacent air outlet parts 621 are provided with intervals 622, and the air outlet parts 621 are provided with There are V-shaped air outlet openings 623, so that when the air quickly flows through the air outlet openings 623, a siphon effect is generated between the air and several evenly distributed air outlet portions 621, which reduces noise and increases the air outlet volume.

Further, the air outlet opening 623 is V-shaped, which can make the air flow through the air outlet opening 623 faster and with less resistance, thereby reducing noise and increasing the air outlet volume.

Wherein, in this embodiment, the air outlet 621 is V-shaped, which can make the air flow faster and the resistance smaller when passing through the air outlet opening 623 .

The number of the air outlet parts 621 is 4-8, which can be set according to actual needs to meet different application scenarios. In other embodiments, the number of air outlet parts 621 can also be 10, 12 one and so on.

Specifically, as shown in FIGS. 4 to 5 , the included angle between the left end and the right end of the air outlet 621 is 45°, and the included angle between the left end and the right end of the spacer 622 is 15°, and the distribution is uniform. And it is convenient for production, and at the same time, it is more conducive to the rapid flow of air.

Among them, in this embodiment, the air outlet assembly 62 and the housing 61 are integrally formed into a structure, which can be mass-produced only by opening the mold, which reduces the cost and price of a single air outlet structure 60 and is more conducive to popularization. At the same time, compared with the spliced structure, the integrally formed structure avoids the shortcomings of poor connection strength and complex process modeling of the connecting part of the spliced structure, and prolongs the service life.

Wherein, the casing 61 is connected with the cylinder body 10 by means of threads, and the connection is firm and easy to assemble and disassemble.

Specifically, as shown in FIG. 1 to FIG. 2 , the air inlet assembly 30 is further provided with an air inlet channel 31 , so that air can quickly enter the cylinder body 10 .

Wherein, in this embodiment, the outer periphery of the cylinder body 10 is further provided with a casing 70 to protect the cylinder body 10 .

The above only uses examples to further illustrate the technical content of the application, so that the reader can understand it more easily, but it does not mean that the embodiments of the application are limited to this. protection of. The scope of protection of this application is subject to the claims.

Claims (10)

1. An inner cylinder device for reducing internal space is characterized in that it comprises a cylinder body, a motor assembly is arranged inside the cylinder body, an air inlet assembly is arranged at the rear end of the motor assembly, and a front end of the motor assembly is arranged with An air duct, the motor assembly includes a motor bracket connected with the barrel body, and a motor connected with the motor bracket; a PCB board is connected on the motor bracket, and the motor bracket is close to the air duct. An opening is provided at the position, and the power components on the PCB board protrude from the opening.
2. The inner cylinder device for reducing internal space according to claim 1, wherein the PCB board comprises an upper PCB board and a lower PCB board; the upper PCB board is arranged on the upper end of the motor support, so The lower PCB board is arranged on the lower end of the motor bracket.
3. The inner cylinder device for reducing internal space according to claim 2, wherein the upper PCB board and the lower PCB board are both connected to the motor bracket by screws.
4. The inner cylinder device for reducing internal space according to claim 3, wherein an air outlet structure is provided at the front end of the air duct; the air outlet structure comprises a casing connected with the cylinder body, The air outlet assembly located at the front end of the casing, the air outlet assembly includes a number of evenly distributed air outlet parts, and there are intervals between the adjacent air outlet parts, and the air outlet parts are provided with V Shaped air openings.
5. The inner cylinder device for reducing internal space according to claim 4, wherein the air outlet is V-shaped.
6. The inner cylinder device for reducing internal space according to claim 5, wherein the number of the air outlet parts is 4-8.
7. The inner cylinder device for reducing internal space according to claim 6, wherein the angle between the left end and the right end of the air outlet is 45°, and the interval is 15°.
8. The inner cylinder device for reducing internal space according to claim 7, wherein the air outlet assembly and the housing are integrally formed.
9. The inner cylinder device for reducing internal space according to claim 8, wherein the casing and the cylinder body are connected by threads.
10. The inner cylinder device for reducing internal space according to claim 9, wherein an air inlet channel is further provided on the air inlet assembly.