CN216165782U

CN216165782U - Pressurizing air delivery device of hair drier

Info

Publication number: CN216165782U
Application number: CN202122700333.3U
Authority: CN
Inventors: 江衍沃; 阮子恒
Original assignee: Sun Luen Electrical Manufacturing Co Ltd
Current assignee: Sun Luen Electrical Manufacturing Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-05
Anticipated expiration: 2031-11-05

Abstract

A pressurizing air delivery device of a blower is arranged at an air outlet of the blower and comprises a nozzle and an air collecting cover, wherein the nozzle is of a structure that one end of the nozzle is reduced and narrowed in diameter, and the other end of the nozzle is directly abutted to the aperture of the air outlet of the blower; the rear end of the air collecting cover is provided with an external airflow inlet channel which is formed by an annular gap between the air collecting cover shell and the nozzle/blower shell. The blower supercharging and air delivery device can improve the air effect without increasing a motor on the structure of a traditional blower, can improve the air quantity by more than 25 percent by combining the air collecting cover with the nozzle which has the function of collecting extra fluid and carrying the extra fluid behind the air collecting cover for conveying, and can reduce the temperature of the fluid after introducing the unheated fluid into the air collecting cover and mixing the unheated fluid with the gas sprayed out by the nozzle, thereby avoiding the damage of scalp hair caused by overhigh temperature of the blown fluid and protecting the scalp and the hair.

Description

Pressurizing air delivery device of hair drier

[ technical field ] A method for producing a semiconductor device

The utility model relates to a daily electric appliance product, in particular to the technical field of hair dryers adopting heating air sources, and relates to a device which is adaptive to the hair dryers and used for increasing air output and air pressure.

[ background of the utility model ]

With the continuous improvement of the hair care requirements of people, various hairdressing tools appear in succession, in order to enable the hair to be dried in a short time after the hair is washed out, or in order to enable the hair to be convenient to shape more smoothly without frizziness, an electric hair dryer is usually selected to dry the hair, and the hair dryer used by daily people has different style functions according to the hair style, the hair quality, the requirements and the like of each person.

The most common form of the electric hair dryer is a cylindrical blowing structure, wherein the tail end of the electric hair dryer is provided with an air inlet, the front end of the electric hair dryer is provided with a blowing port, and a handle structure convenient to hold by hand is downwards extended from the tail end of the electric hair dryer. A heating component is arranged between the air inlet and the air outlet, and air passing through the air blowing cylinder is heated and blown out, so that the heating and air drying speed is accelerated, and the hair drying time is shortened.

Wind gets into by the terminal income wind gap of electric hair drier casing when traditional hair-dryer uses, blow out by the mouth of blowing of casing front end after motor, fan blade and heating element heating, if need strengthen the output, can only use more powerful motor, its design size of the power of motor is big more, weight and cost all can increase, the hair-dryer itself is exactly the small-size domestic appliance of a hand-held type, weight and cost all need accurate control just can bring the product of best use experience and better consumption feedback, so should not design into too big size and weight with the hair-dryer.

In order to solve the above-mentioned defect, there have also been developed a hair dryer in which air enters the casing of the hair dryer through the tail of the handle, passes through the motor and the turning baffle, the direction of the air is changed to a direction perpendicular to the handle, and is heated by the heating element and then discharged from the air outlet at the front end of the casing, the blower body is hollow, the tail end of the blower body can be driven by the air blown by the motor to enter the blower body, thereby bringing extra fluid and enhancing output, but the assembly is complicated, and the air inlet is arranged below the handle, so that the palm of a user can block the air inlet when holding the hair dryer by hand to influence functional devices of the hair dryer, and the fluid flows through the heating component after being sucked and then turns at a right angle of 90 degrees, the path is roundabout, the air flow is easy to lose, at the same time, the size of the handle is affected by the size of the motor, the size of the handle is large, and the weight and the production cost of the hair dryer are increased.

[ summary of the utility model ]

The utility model provides a supercharging air delivery device of a hair drier, aiming at the problems, extra wind power can be guided into the air flow of a nozzle through a furling spray head and a peripheral wind collecting cover, the wind power is increased to lift the wind pressure on the premise of not changing the power of a motor, and better use experience and a better blowing effect are brought. And does not cause additional product weight and cost increases.

A pressurizing air delivery device of a blower is arranged at an air outlet of the blower and comprises a nozzle and an air collecting cover, wherein the nozzle is of a structure that one end of the nozzle is reduced and narrowed in diameter, and the other end of the nozzle is directly abutted to the aperture of the air outlet of the blower; the rear end of the air collecting cover is provided with an external airflow inlet channel which is formed by an annular gap between the air collecting cover shell and the nozzle/blower shell.

The wind-collecting cover is connected to the nozzle or the blower housing through a connecting part, and the connecting part is designed to be in a form with minimum wind resistance under the condition of meeting the strength requirement.

The air collecting hood is connected with the nozzle or the blower shell through connecting points, and the number of the connecting points is at least two.

One end of the nozzle is butted with an air outlet of the blower, the size of the nozzle is matched with the aperture of the air outlet of the blower, and the other end of the nozzle is the aperture of the narrowed air outlet.

More preferably, the nozzle is of a lobe, ring and zigzag nozzle configuration.

The front end of the air collecting cover arranged outside the nozzle is longer than the length extended from the front end of the nozzle.

Further, the distance between the front end of the wind collecting cover and the front end of the nozzle is larger than 2 mm.

The pressurizing air delivery device serves as an adapter and is matched with an air blowing opening of a blower through a movable dismounting structure.

The movable dismounting structure is a buckle device, a magnetic suction type device or an interference fit clamping device.

The pressurizing air delivery device and the blower are integrally formed.

The blower supercharging and air delivery device can improve the air effect without increasing a motor on the structure of a traditional blower, can improve the air quantity by more than 25 percent by combining the air collecting cover for collecting extra fluid and the nozzle, and carries the extra fluid behind the air collecting cover for conveying, and can reduce the temperature of the fluid after introducing the unheated fluid into the air collecting cover and mixing the unheated fluid with the gas sprayed by the nozzle, thereby avoiding the damage of scalp hair caused by overhigh temperature and overheating of the blown fluid and protecting the scalp and the hair.

[ description of the drawings ]

FIG. 1 is a schematic view of a blower with a pressurized air delivery device and a blower adapter according to the present invention;

FIG. 2-1 is a schematic view of a lobed nozzle in a pressurized air delivery apparatus according to the present invention;

FIG. 2-2 is a schematic view of a ring nozzle in a pressurized air delivery apparatus according to the present invention;

FIGS. 2-3 are schematic views of a zigzag nozzle in a pressurized air delivery apparatus according to the present invention;

FIG. 3 is a schematic view illustrating the flow direction of the gas mixture in the pressurized air delivery device according to the present invention;

FIG. 4 is a schematic view illustrating the flow direction of the gas mixture in the pressurized air delivery device according to the present invention;

FIG. 5 is a schematic diagram of a lobed nozzle as referred to in the background of the utility model;

wherein: 100. a blower; 101. an air outlet;

10. a supercharging air delivery device;

11. a nozzle; 11a, lobe-type nozzles; 11b, a ring-shaped nozzle; 11c, a zigzag nozzle; 111. a flow guiding cone; 112. connecting columns;

12. an air collecting cover.

[ detailed description ] embodiments

The utility model will be described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The present invention relates to a nozzle and air collecting hood design, and the referenced technical background relates to a structure of a gas turbine engine, in the existing bypass gas turbine engine, a fluid entering through a fan is divided into two parts, wherein one part of the main air passes through a compressor, a combustion chamber and a turbine and is called an inner air inlet channel, the other part of the fluid passes through an outer air inlet channel of an outer bypass channel, and the fluid does not pass through the compressor, the combustion chamber and the turbine and is only converged at an outlet to form a mixed fluid and then is ejected. In the recent bypass gas turbine engine, a lobe nozzle (Lobed Mixer) is widely used, and referring to fig. 5, the lobe nozzle helps to promote mixing between internal and external inlet channel fluids, and when the lobe nozzle is used in the bypass gas turbine engine, the noise of the ejected air flow is reduced, and the thrust is increased. Examples are specifically illustrated in the following patent publications: US5755092, US59246320 and US 5884472.

Based on the structure, the product is improved into a pressurizing air delivery device suitable for a blower, and the main fluid delivered from a fan is sprayed out from a narrowing nozzle for acceleration, and then the speed of the main fluid is increased and partial pressure is reduced after the main fluid is sprayed out from the nozzle based on Bernoulli's Law fluid, so that a low-pressure area is formed in front of the nozzle and the air collecting cover, the air pressure of the air collecting cover and the front area of the nozzle is lower than that of the rear area of the air collecting cover, and therefore the fluid in the rear area of the air collecting cover is entrained to flow into the low-pressure area in front of the air collecting cover from the rear end of higher pressure through an air inlet channel.

The inner wall of the wind collecting cover and the extra fluid flowing into the wind collecting cover form a wall attaching effect, and the extra fluid carrying with the environment enters the wind collecting cover, is mixed with the main fluid and is sprayed forwards. Based on the principle and design thought, the structural components are particularly refined and the structure of the specific embodiment suitable for the hair dryer is designed.

Example 1: referring to fig. 1, a pressurized air delivery device 10 with a specific product form adapted to a hair dryer is shown, which is disposed at an air outlet 101 of a hair dryer 100, and the device can be adapted to be mounted on the hair dryer through a structure convenient for disassembly and assembly, or can be made into an integral product with the hair dryer in an integral manner. According to the positioning of the product and the actual use scene. In the embodiment, the pressurizing air delivery device is movably matched to the blower through a structure convenient to disassemble.

The pressurized air delivery device 10 comprises a nozzle 11 and an air collecting cover 12, wherein the nozzle 11 has a structure that one end reduces the diameter of a narrowing aperture and the other end is directly connected with the aperture of an air outlet 101 of the air blower 100.

The core element of the nozzle structure design is to shrink the air path of the fluid and then to spray the air, so the aperture from the air outlet to the outlet of the nozzle 11 is gradually reduced and narrowed, so that the fluid can be further sprayed out at high speed, and the nozzle design can refer to fig. 2-1, 2-2, and 2-3, which show the structures of the flap nozzle 11a, the ring nozzle 11b, and the zigzag nozzle 11c by way of example and demonstration.

As shown in fig. 2-1, 2-2 and 2-3, a guide cone 111 is provided in the ring type nozzle 11b and the zigzag type nozzle 11c, the guide cone 111 is in the shape of an inverted cone when viewed in a cross section, and the guide cone 111 has a connection post 112 connected to an inner wall of the nozzle or an edge of the nozzle. As a structure for further compressing the outlet space and improving the turbulence effect.

Different nozzles 11 are combined into the air collecting hood 12, and under the same air collecting hood 12, the matched ring type or sawtooth type nozzles have the effect of mixing the main fluid and the additional fluid, but the mixing efficiency is poorer than that of the lobe type nozzle 11a, and the measured air volume (L/S) value of the lobe type nozzle 11a is higher than that of the other two types, which means that the main fluid and the additional fluid are mixed more efficiently by using the lobe type nozzle, and more additional fluid can be entrained into the air collecting hood 12.

Referring to fig. 3, which illustrates the wind collecting effect of the wind collecting cover, the wind collecting cover 12 is disposed around the nozzle 11, the rear end of the wind collecting cover 12 has an external air inlet channel 13, and the external air inlet channel 13 is formed by an annular gap between the outer shell of the wind collecting cover 12 and the outer shell of the nozzle/blower. The extra fluid needs to be collected through the air inlet channel 13, the air inlet channel 13 is an air inlet for the extra fluid, in order to achieve air inlet with maximum efficiency, the fewer the connection points of the air collecting cover 12 are, the better the wind resistance at the connection part is, and the two connection points are generally designed to be connected and fixed with the shell or the nozzle.

The air collection hood 12 is connected to the nozzle 11 or the blower 100 casing through a connection portion designed to minimize wind resistance when strength is satisfied. The hood 12 is connected to the nozzle 11 or the blower 100 casing by at least two connection points. The length of the hood 12 is more than 20 mm to less than 45 mm.

Referring to fig. 4, the front end of the wind-collecting cover 12 disposed outside the nozzle 11 is longer than the length of the front end of the nozzle 11. Further provided that the distance between the front end of the air collection hood 12 and the front end of the nozzle 11 is greater than 2 mm.

Firstly, it is limited that the nozzle 11 does not protrude within the length of the wind-collecting cover 12, and the distance between the front end of the wind-collecting cover 12 and the most front end of the nozzle 11 is more than 2 mm. This structure is to avoid nozzle 11 to bulge outside air-collecting cover 12 or nozzle 11 too to press close to air-collecting cover 12 front end, prevents that the user from touching the scald by mistake, and simultaneously, nozzle 11 is not bulged in air-collecting cover 12, and increase amount of wind output effect is better than nozzle 11 protrusion or parallel and level.

The pressurized air delivery device 10 serves as an adapter that is adapted to the outlet of the hair dryer 100 by a removable structure.

According to the common knowledge in the industry, if the air outlet of the blower is a buckle device, a clamping end and a buckling end which can be clamped are arranged at the butt joint part of the air outlet of the blower and the butted supercharging and air delivery device, and the air outlet of the blower and the butted supercharging and air delivery device are butted and quickly disassembled in a clamping and buckling mode; if the magnetic device is used, accessories such as magnets and the like are arranged at the butt joint part of the magnetic device, the magnetic device can be installed by direct adsorption, and can be detached by slight force; if the interference fit clamping mode is that the clamping can be carried out on the periphery of the machine body or can be clamped and embedded into the inner side of the air blowing port, industrial design can be carried out according to specific requirements. This is attached to the hair dryer by external means.

Or the pressurizing air delivery device and the blower can be integrally formed. Becomes part of the body. The technical scope of the present invention is within the scope of the present invention as long as the structural elements are provided to realize the same functional principle.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A pressurizing air delivery device of a blower is arranged at an air outlet of the blower and comprises a nozzle and an air collecting cover, wherein the nozzle is of a structure that one end of the nozzle is reduced and narrowed in diameter, and the other end of the nozzle is directly abutted to the aperture of the air outlet of the blower; the rear end of the air collecting cover is provided with an external airflow inlet channel which is formed by an annular gap between the air collecting cover shell and the nozzle/blower shell.

2. A pressurized air delivery device for hair dryers as claimed in claim 1, wherein the air collection hood is connected to the nozzle or the blower housing by a connecting portion which is designed to minimize the wind resistance in case of meeting the strength requirements.

3. A pressurized air delivery device for a hair dryer as claimed in claim 2, wherein the hood is connected to the nozzle or the blower housing by at least two connection points.

4. A pressurized air delivery device for blowers according to claim 1, wherein the nozzle is adapted at one end to abut the outlet of the blower and is sized to match the aperture of the outlet of the blower and at the other end to narrow the aperture of the outlet.

5. A pressurized air delivery device for hair dryers as claimed in claim 4 wherein said nozzles are of a lobed, toroidal and zigzag nozzle configuration.

6. A pressurized air delivery device for hair dryers as set forth in claim 5 wherein the front end of the air collection hood disposed outside the nozzle is extended by a length greater than the front end of the nozzle.

7. A pressurised delivery device for a hair dryer as claimed in claim 6, wherein the hood is spaced from the nozzle by a distance of greater than 2 mm.

8. A pressurized air delivery device for hair dryers according to claim 2, wherein said pressurized air delivery device is adapted to the hair dryer discharge opening as an adapter by a removable structure.

9. A pressurized air delivery device according to claim 8, wherein said removable structure is a snap-fit, magnetic-type, or interference-fit retaining device.

10. A pressurized air delivery device for hair dryers as claimed in claim 2 wherein said pressurized air delivery device is integrally formed with said hair dryer.