WO2023168864A1

WO2023168864A1 - Hot air duct structure and dryer using same

Info

Publication number: WO2023168864A1
Application number: PCT/CN2022/102701
Authority: WO
Inventors: 朱永阳
Original assignee: 东莞市百仕诚物联网科技有限公司; 东莞市磁天下电子科技有限公司
Priority date: 2022-03-05
Filing date: 2022-06-30
Publication date: 2023-09-14
Also published as: CN114672961A

Abstract

A hot air duct structure and a dryer using same. The hot air duct structure comprises an air duct shell (1), a fan (2), and an electric heating net (4), wherein the air duct shell (1) comprises an accommodating portion (11) and an air output portion (13) which are vertically arranged and communicate with each other, an air inlet (12) is provided at one side of the accommodating portion (11), and the air output portion (13) is provided with an air outlet (14); and the fan (2) and the electric heating net (4) are both accommodated in the accommodating portion (11) of the air duct shell (1), air enters the fan (2) from the air inlet (12) of the accommodating portion (11), and output air of the fan (2) passes through the electric heating net (4) and then is introduced into the air output portion (13) of the air duct shell (1).

Description

Hot air duct structure and dryer using it

Technical field

The invention relates to the technical field of daily electrical appliances, specifically a hot air duct structure and a dryer using the same.

Background technique

The dryer can quickly dry clothes, towels and other fabrics, and has a certain disinfection and sterilization function. It is a practical household appliance. With the improvement of living standards, more and more homes and commercial places are equipped with it. Dryer.

Dryers in the prior art usually have the following two structures:

1. There is a storage bucket, and an electric heating mechanism is installed inside or around the storage bucket. The electric heating mechanism heats the fabric in the storage bucket through heat conduction to dry the fabric;

2. There is a storage bucket, and an air induction channel is provided at the opening or bottom of the storage barrel. Hot air is introduced into the storage barrel through the air induction channel to dry the fabric.

Both dryers with the above two structures lack reasonable air duct structures, and the drying efficiency and quality of fabrics need to be improved.

Contents of the invention

One of the objects of the present invention is to provide a hot air duct structure that can discharge air to all sides, thereby improving the drying efficiency and quality of fabrics in a dryer using the hot air duct structure.

Another aspect of the present invention is to provide a dryer whose hot air duct structure can discharge air to all sides to improve the drying efficiency and quality of fabrics.

In order to achieve the above object, the present invention provides the following technical solution: a hot air duct structure, including an air duct shell, a fan and an electric heating network; the air duct shell includes an accommodating part and an air outlet part that are erected and connected with each other, so One side of the accommodating part is an air inlet, and an air outlet is arranged on the air outlet part; the fan and the electric heating network are both accommodated in the accommodating part of the air duct shell, and the fan flows from the Air enters at the air inlet of the accommodation part, and the air outlet from the fan passes through the electric heating network and is introduced into the air outlet part of the air duct shell.

In the above technical solution, the hot air duct structure also includes a tubular air guide bracket; the air guide bracket is accommodated in the accommodation portion of the air duct shell, and the electric heating network is fixed on the air guide bracket , one end of the air guide bracket is connected to the air outlet part of the air duct shell, and the other end of the air guide bracket is connected to the air outlet end of the fan.

In the above technical solution, one end cover of the air guide bracket connected to the air outlet part of the air duct shell is provided with a bracket cover, the bracket cover covers the electric heating network, and a mesh is provided on the bracket cover.

In the above technical solution, the fan is one of a cross-flow fan, a vortex fan, a blower and a circulation fan.

In the above technical solution, the air outlet on the air outlet part is in one or more strip shapes, hole shapes, and sheet shapes.

In the above technical solution, an extension cover plate is provided on the top of the air outlet portion of the air duct shell, and the outer peripheral edge of the extension cover plate protrudes from the outer wall of the air outlet portion of the air duct shell.

A dryer, which includes the above-mentioned hot air duct structure, and also includes a storage barrel and an upper cover; the air duct shell is arranged in the storage bucket, and the fan can pass through the air duct shell The air inlet takes in air from outside the accommodation barrel, and the air outlet of the air duct shell faces the internal space of the accommodation barrel; the upper cover is closed on the accommodation barrel, and the accommodation barrel There is a gap between the upper cover and the upper cover to discharge the air in the container.

In the above technical solution, the accommodation barrel includes an inner shell, an outer shell and a mounting shell; the air duct shell is integrally formed with the inner shell, and the air inlet of the air duct shell is located on the inner shell. Outside the bottom, the accommodating part of the air duct shell is pulled up from the inside of the bottom of the air duct shell, and the air outlet is formed on the top of the accommodating part, and the air outlet is Still located in the internal space of the inner shell; the bottom of the outer shell is provided with an air inlet grille, the outer shell is sleeved on the inner shell, and the bottom of the outer shell is in contact with the inner shell There is a gap between the bottoms of the bodies; the installation shell is fixed on the inner shell, and the installation shell is provided with an operation panel for controlling the operation of the fan and the electric heating network. The upper cover is pivoted on The mounting shell.

In the above technical solution, the inner side of the upper cover is detachably covered with an aromatherapy cover, and the solid aromatherapy is accommodated in the aromatherapy cover.

In the above technical solution, a hook is provided in the storage bucket.

Compared with the prior art, the beneficial effects of the present invention are:

1. With this kind of hot air duct structure, after the fan and the electric heating network are started, the flowing air enters the air outlet of the air duct shell after being heated by the electric heating network, and is blown out from the air outlet at the air outlet to all sides; this kind of hot air The design of the air duct structure is more reasonable and efficient. When used in a semi-closed casing, the air can be discharged from the center of the casing to the surroundings. Compared with the one-way hot air mechanism, it can blow the air more evenly and efficiently. Move the contents of the case.

2. This type of dryer has a more reasonable and efficient design of the hot air duct structure, which can discharge air from the center of the storage barrel to the surroundings; compared with the one-way hot air mechanism that discharges air only from the inside of the storage barrel or An electric heating mechanism is installed around the perimeter. This dryer can dry clothes, towels and other fabrics more evenly and efficiently.

Description of the drawings

Figure 1 is a perspective view of Embodiment 1 of the present invention.

Figure 2 is an exploded view of Embodiment 1 of the present invention.

Figure 3 is a cross-sectional view of Embodiment 1 of the present invention.

Figure 4 is a perspective view of Embodiment 2 of the present invention.

Figure 5 is an exploded view of Embodiment 2 of the present invention.

Figure 6 is a cross-sectional view of Embodiment 2 of the present invention.

The reference numbers are: 1. Air duct shell; 11. Accommodation part; 12. Air inlet; 13. Air outlet part; 14. Air outlet; 15. Extended cover; 2. Fan; 21. Installation bracket; 3. Air guide bracket; 31, bracket cover; 32, air guide channel; 4, electric heating network; 5, storage bucket; 51, inner shell; 511, opening; 52, outer shell; 521, air inlet grille; 53 , installation shell; 531, operation panel; 6, upper cover; 61, aroma diffuser cover; 62, solid aroma diffuser; 7, hook; 8, power supply mechanism.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Example 1:

Please refer to Figures 1 to 3. This embodiment provides a hot air duct structure, which includes an air duct shell 1, a fan 2 and an electric heating network 4.

Among them, the air duct shell 1 is an integrally formed engineering plastic shell, the fan 2 is a DC fan, and the electric heating network 4 is a resistive electric heating network. A dense grid is formed on the electric heating network 4. When the flowing air passes through the electric heating network 4 will be heated.

The air duct shell 1 includes an accommodating part 11 and an air outlet part 13 that are erected and communicate with each other. The accommodating part 11 is located at the lower part, and the air outlet part 13 is located at the upper part. One side of the accommodating part 11 is the air inlet 12. In fact, , the bottom of the accommodating part 11 is an opening, which is the air inlet 12, and the air outlet 13 is provided with air outlets 14. The air outlets 14 are arranged in an array on the air outlet 13, and are used to supply air to the air outlet 13. 13 is surrounded by wind.

The fan 2 and the electric heating network 4 are both accommodated in the accommodating part 11 of the air duct shell 1. The fan 2 takes in air from the air inlet 12 of the accommodating part 11. The outlet air of the fan 2 passes through the electric heating network 4 and is introduced into the air duct shell. The air outlet part 13 of 1; specifically, the fan 2 is supported in the accommodating part 11 through two mounting brackets fixed at the bottom of the accommodating part 11 of the air duct shell 1, and the air inlet end of the fan 2 faces the accommodating part The air inlet 12 of 11 is for air intake.

Specifically, the hot air duct structure also includes a tubular air guide bracket 3. The air guide bracket 3 is made of engineering plastics. The interior of the air guide bracket 3 is the air guide channel 32; the air guide bracket 3 is accommodated in the air. In the accommodating part 11 of the duct shell 1, the electric heating network 4 is fixed in the air guide bracket 3. Specifically, the electric heating network 4 is fixed in the air guide channel 32 inside the air guide bracket 3 through screws or buckles. The air guide bracket 3 is fixed in the accommodating part 11 of the air duct shell 1 through screws or buckles. One end of the air guide bracket 3 is connected with the air outlet 13 of the air duct shell 1, and the other end of the air guide bracket 3 is connected with the outlet of the fan 2. The wind end is connected.

Furthermore, one end cover of the air guide bracket 3 that communicates with the air outlet 13 of the air duct shell 1 is provided with a bracket cover 31. The bracket cover 31 is fixed on the air guide bracket 3 through screws or buckles. The bracket cover 31 covers the electric heater. The mesh 4 and the bracket cover 31 are provided with mesh holes to allow the outlet air to pass through; the bracket cover 31 is provided to prevent foreign matter from falling into the electric heating mesh 4.

Specifically, the fan 2 is one of a cross-flow fan, a vortex fan, a blower and a circulation fan. In this embodiment, the fan 2 is a cross-flow fan. Correspondingly, the air duct shell 1 and the air guide bracket 3 are in the same shape as the fan. 2 matching flat shapes.

Specifically, the air outlets 14 on the air outlet 13 are in the shape of one or more strips, holes, and sheets. In this embodiment, the air outlets 14 are in the shape of strips and are arranged vertically on the air outlet 13 .

Furthermore, an extension cover 15 is provided on the top of the air outlet 13 of the air duct shell 1. The extension cover 15 is a plate made of engineering plastic material and is fixed to the air outlet of the air duct shell 1 through screws or buckles. The outer peripheral edge of the extended cover plate 15 protrudes from the outer wall of the air outlet portion 13 of the air duct shell 1 .

In this hot air duct structure, after the fan 2 and the electric heating network 4 are started, the fan 2 draws air from the air inlet 12 of the air duct shell 1 and introduces it into the air guide bracket 3, and the flowing air is heated by the electric heating network 4 Then it enters the air outlet 13 of the air duct shell 1, and is blown out from the air outlet 14 at the air outlet 13 to all directions; the design of this hot air duct structure is more reasonable and efficient, and when used in a semi-enclosed shell , can blow the air from the center of the casing to the surroundings. Compared with the hot air mechanism that blows air in one direction, it can blow the items in the casing more evenly and efficiently.

Example 2:

Please refer to Figures 4 to 6. This embodiment provides a dryer for drying fabrics such as clothes and towels.

This dryer includes the hot air duct structure in Embodiment 1. The dryer also includes a storage barrel 5 and an upper cover 6; the air duct shell 1 is arranged in the storage barrel 5, and the fan 2 can pass the air. The air inlet 12 of the duct shell 1 takes in air from outside the accommodation bucket 5, and the air outlet 14 of the air duct shell 1 faces the internal space of the accommodation bucket 5; the upper cover 6 is closed on the accommodation bucket 5, and the accommodation bucket 5 and the upper There is a gap between the covers 6 to discharge the air in the container 5 .

Specifically, the accommodation barrel 5 includes an inner shell 51, an outer shell 52, and a mounting shell 53; the inner shell 51 and the outer shell 52 are both square engineering plastic half shells, and the mounting shell 53 is larger in volume than the inner shell. A complete shell with a small body 51, the upper cover 6 is made of engineering plastic material, and the inside of the upper cover 6 is a cavity; the air duct shell 1 and the inner shell 51 are integrally formed, that is, the air duct shell 1 serves as the inner shell A part of the body 51 is injection molded together with the inner shell 51; the air inlet 12 of the air duct shell 1 is located outside the bottom of the inner shell 51, and the accommodating part 11 of the air duct shell 1 is from the inside of the bottom of the air duct shell 1 Start to pull up, and form the air outlet 13 on the top of the accommodating part 11, and the air outlet 13 is still located in the internal space of the inner housing 51. At the same time, the extension cover 15 is also located in the internal space of the inner housing 51; An air inlet grille 521 is provided at the bottom of the outer casing 52. The outer casing 52 is set on the inner casing 51. The outer casing 52 and the inner casing 51 are fixed to each other through screws, and the bottom of the outer casing 52 is connected to the inner casing 51. There is a gap between the bottoms. When the fan 2 takes in air, the air enters from the air inlet grille 521 of the outer shell 52. After passing through the gap between the bottom of the outer shell 52 and the bottom of the inner shell 51, it enters the air duct shell 1. The air inlet 12; the mounting shell 53 is fixed on the inner shell 51. In this embodiment, the mounting shell 53 is fixed on the inside of the inner shell 51 through a metal bracket; the mounting shell 53 is provided with a device for controlling the fan 2 and The operation panel 531 for the operation of the electric heating network 4 is a touch panel and can control the operation of the fan 2 and the electric heating network 4 through the operation panel 531; the upper cover 6 is pivotally connected to the installation shell 53. In this embodiment, The pivot shaft is fixed on the installation shell 53, and the upper cover 6 is pivoted on the installation shell 53 through the pivot shaft.

It should be noted that the inside of the operation panel 531 is a printed circuit board with a touch module and a screen display module; the inner shell 51 and the outer shell 52 of the accommodation barrel 5 also form a gap on the side, and a power supply is provided in the gap. Mechanism 8, the power supply mechanism 8 is mounted on a printed circuit board, which includes an AC input interface, a control chip, a switching device and a DC output interface; the operation panel 531 is connected to the control chip signal of the power supply mechanism, and the control chip can control the operation of the switching device. , to convert the alternating current input into the alternating current input interface into direct current, and supply power to the fan 2 and the electric heating network 4 through the DC output interface. The control chip of the power supply mechanism controls the power supply to the fan 2 and the electric heating network 4 according to the signal from the operation panel 531, thereby Control the operation of fan 2 and electric heating network 4.

More specifically, the opening of the inner housing 51 is folded outward to form an outwardly inclined opening 511. When the upper cover 6 rotates around its pivot axis to a horizontal position, the outer wall of one side of the upper cover 6 close to the mounting shell 53 is pressed against The mounting shell 53 is installed to support the upper cover 6 so that a certain gap remains between the upper cover 6 and the opening 511 of the inner housing 51 .

Further, the inside of the upper cover 6 is detachably covered with an aromatherapy cover 61 , and a number of meshes are provided on the aromatherapy cover 61 . In this embodiment, the aromatherapy cover 61 is fastened to the inside of the upper cover 6 through buckles; The solid aromatherapy 62 is accommodated in the cover 61. In this embodiment, the solid aromatherapy 62 is in the shape of a cube, and when heated, it sublimates into a gaseous state and emits fragrance.

Further, a hook 7 is provided in the storage bucket 5; the hook 7 is a metal hook, and a plug hole is provided on the inner wall of the inner shell 51 of the storage bucket 5. One end of the hook 7 is inserted into the plug hole, and the other end of the hook 7 is inserted into the plug hole. Suspended in the inner shell 51; in this embodiment, four hooks 7 are provided in the accommodation barrel 5.

When this kind of dryer is in use, the upper cover 6 is opened, and fabrics such as clothes and towels are put into the storage bucket 5, and then the fabrics are hung on the hooks 7, placed on the extended cover 15 of the air duct shell 1, and Place it directly in the inner casing 51. After closing the upper cover 6, use the operation panel 531 to control the operation of the fan 2 and the electric heating network 4; after the fan 2 and the electric heating network 4 are started, the fan 2 enters the air from the air grille of the outer casing 52. The air is drawn into the outer shell 52 at 521, and then drawn into the air inlet 12 of the air duct shell 1 and introduced into the air guide bracket 3. The flowing air enters the air duct shell after being heated by the electric heating network 4. The air outlet 13 of 1 is blown out from the air outlet 14 of the air outlet 13 to all directions and enters the internal space of the inner shell 51, thereby promoting the air circulation in the accommodation barrel 5 and affecting the air circulation in the accommodation barrel 5. Clothes, towels and other fabrics are heated, and the moist hot air will be discharged from the gap between the storage barrel 5 and the upper cover 6, thereby quickly and evenly drying the clothes, towels and other fabrics; in the above process, the solid aromatherapy 62 is heated Sublimating into a gaseous state, it can make clothes, towels and other fabrics absorb aroma; during the drying process, it can also kill microorganisms on clothes, towels and other fabrics to a certain extent.

This type of dryer has a more reasonable and efficient design of the hot air duct structure, which can discharge air from the center of the accommodation barrel 5 to the surroundings; compared with the one-way hot air mechanism that discharges air only from the inside of the accommodation barrel 5 or An electric heating mechanism is installed around the perimeter. This dryer can dry clothes, towels and other fabrics more evenly and efficiently.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims

A hot air duct structure is characterized by including an air duct shell, a fan and an electric heating network;

The air duct shell includes an upright and interconnected accommodation part and an air outlet part. One side of the accommodation part is an air inlet, and the air outlet part is provided with an air outlet;

The fan and the electric heating network are both accommodated in the accommodating part of the air duct shell. The fan takes in air from the air inlet of the accommodating part, and the air outlet of the fan passes through the electric heating network. Finally, introduce the air outlet part of the air duct shell.
The hot air duct structure according to claim 1, further comprising: a tubular air guide bracket;

The air guide bracket is accommodated in the accommodation portion of the air duct shell, the electric heating network is fixed in the air guide bracket, and one end of the air guide bracket is connected to the air outlet of the air duct shell. , the other end of the air guide bracket is connected with the air outlet end of the fan.
The hot air duct structure according to claim 2, characterized in that: an end cover of the air guide bracket connected to the air outlet part of the air duct shell is provided with a bracket cover, and the bracket cover covers the electric heating network, The bracket cover is provided with mesh holes.
The hot air duct structure according to any one of claims 1 to 3, characterized in that the fan is one of a cross-flow fan, a vortex fan, a blower and a circulation fan.
The hot air duct structure according to any one of claims 1 to 3, characterized in that: the air outlet on the air outlet is in one or more strip shapes, hole shapes, and sheet shapes.
The hot air duct structure according to any one of claims 1 to 3, characterized in that: an extension cover plate is provided on the top of the air outlet portion of the air duct shell, and the outer peripheral edge of the extension cover plate protrudes from the The outer wall of the air outlet part of the air duct shell.
A dryer, characterized in that it includes the hot air duct structure described in any one of claims 1-6, and also includes a storage barrel and an upper cover;

The air duct shell is arranged in the accommodating bucket, the fan can inlet air from outside the accommodating bucket through the air inlet of the air duct shell, and the air outlet of the air duct shell faces the accommodating bucket. The interior space of the barrel;

The upper cover is closed on the accommodating bucket, and there is a gap between the accommodating bucket and the upper cover to discharge air in the accommodating bucket.
The dryer according to claim 7, characterized in that: the accommodation barrel includes an inner shell, an outer shell and an installation shell;

The air duct shell is integrally formed with the inner shell, the air inlet of the air duct shell is located outside the bottom of the inner shell, and the accommodation portion of the air duct shell is opened from the bottom of the air duct shell. The inner side begins to pull up, and the air outlet is formed on the top of the accommodation part, and the air outlet is still located in the internal space of the inner shell;

An air inlet grille is provided at the bottom of the outer casing, the outer casing is sleeved on the inner casing, and there is a gap between the bottom of the outer casing and the bottom of the inner casing;

The installation shell is fixed on the inner shell. The installation shell is provided with an operation panel for controlling the operation of the fan and the electric heating network. The upper cover is pivotally connected to the installation shell.
The dryer according to claim 7, characterized in that: the inside of the upper cover is detachably covered with an aromatherapy cover, and a solid aromatherapy is accommodated in the aromatherapy cover.
The dryer according to claim 7, characterized in that: a hook is provided in the storage barrel.