NECK FAN WITH UNIVERSALLY ADJUSTABLE ANGLE

Abstract

Disclosed is a neck fan with universally adjustable angle, which includes a neck housing and a side housing connected to both ends through a universal joint. An air outlet assembly can be built-in or externally disposed, adapt to needs for airflow angle of different users, and deliver even and gentle airflow or direct and powerful airflow, so as to improve wearing comfort and usage flexibility.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

The application claims priority to Chinese patent application No. 2025200728652 , filed on January 13, 2025, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The invention relates to the technical field of fans, in particular, to a neck fan with a universally adjustable angle.

BACKGROUND

As neck fans continue to develop, users now come in all shapes and sizes, including height, body type, and gender, and their requirements for the airflow position and volume of the neck fan vary. Current neck fans have relatively fixed airflow angles with very limited adjustment, or only offer a single airflow angle that can be selected for horizontal or vertical rotation. This fails to meet the airflow angle and comfort requirements of different user groups and different blowing positions.

SUMMARY

An objective of the invention is to enhance the tactile experience, so as to provide a neck fan with a universally adjustable angle.

In view of the above problems, the invention provides a neck fan with universally adjustable angle, which includes a neck housing and a side housing connected to both ends of the neck housing, wherein an end of the side housing is provided with a universal joint, and the universal joint and the neck housing form a universal connection; the side housing is provided with an air outlet assembly.

Further, the neck housing is further provided with the air outlet assembly.

Further, the air outlet assembly includes a sealed air cavity, the sealed air cavity is provided inside with a fan motor, and the sealed air cavity is further provided with an air outlet.

Further, the sealed air cavity is provided inside with an elongated section disposed corresponding to the air outlet, and a width of the elongated section is gradually decreased from the fan motor to a distal end.

Further, a plurality of guide ribs are disposed inside the elongated section, and the guide ribs extend from an interior of the elongated section toward the air outlet.

Further, the universal joint is integrally formed on the side housing.

Further, the neck housing includes a fixed base and a face housing, an end of the face housing is provided with a spherical receiving chamber, and the spherical receiving chamber is provided with a first curved groove disposed corresponding to the universal joint; the fixed base is provided with a second curved groove that cooperates with the first curved groove, and the universal joint is enclosed between the first curved groove and the second curved groove.

Further, a limit stop bar is disposed outside the universal joint, and the first curved groove is provided with an opening groove disposed corresponding to the limit stop bar.

Optionally, the air outlet assembly may be a fan mounted on the side housing.

Further, the neck housing is provided inside with a second fixed base and a third fixed base, the second fixed base is integrally formed inside the neck housing, and the second fixed base and the third fixed base are detachably connected with each other; the universal joint is clamped between the second fixed base and the third fixed base, the universal joint is provided with a positioning member, and the positioning element is provided with a plurality of positioning holes; the neck housing is provided correspondingly with a telescopic pin and a spring for driving the pin to telescope, and the pin may be inserted into the positioning hole to fix a rotation angle of the universal joint.

Compared with the prior art, the invention has the following beneficial effects:

Compared to traditional one-piece U-shaped neck fans, the invention divides the main body into the neck housing and two side housings, which are connected by the universal joint. This design allows the angle to be adjusted according to the user needs, providing a more personalized user experience and improving the flexibility of fan use.

In Embodiment One, the air outlet assembly is disposed in the sealed air cavity inside the neck housing and/or the side housing. By optimizing the airflow design, such as the elongated sections and the guide ribs, the airflow may be guided to be delivered more evenly and gently in a more reasonable distribution, achieving comprehensive and surrounding airflow to areas such as the neck and face, providing a comfortable feel and making it suitable for long-term daily wear.

In Embodiment Two, the air outlet assembly uses the fan that is directly mounted on the side housing. The direct-blowing structure reduces airflow loss and delivers airflow more directly, concentratedly, and powerfully to desired positions for users, which results in significant rapid cooling, and is more suitable for use in high-temperature environments or scenarios with high airflow requirements. Furthermore, an automatic locking mechanism with the pin and the positioning holes has been added, which may automatically lock after the user adjusts to the required angle, improving the convenience and stability of use.

BRIEF DESCRIPTION OF DRAWINGS

FIGS. 1, 2, and 3 are a three-dimensional view, a cross-sectional view, and an exploded view according to Embodiment One;

FIG. 4 is a view of the cooperation between a universal joint and a spherical receiving chamber according to Embodiment One;

FIG. 5 is a view of the assembly of an air outlet assembly according to Embodiment One;

FIG. 6 is a view of an interior of a sealed air cavity according to Embodiment One, and also shows a view of the state with guide ribs;

FIG. 7 is a three-dimensional view of the sealed air cavity with the guide ribs according to Embodiment One;

FIGS. 8 and 9 are a three-dimensional view and an exploded view of the air outlet assembly disposed in a neck housing according to Embodiment One;

FIGS. 10, 11, and 12 are a three-dimensional view, a cross-sectional view, and an exploded view according to Embodiment Two;

FIG. 13 is a view of results related to a universal joint according to Embodiment Two;

FIG. 14 is a view of the universal joint according to Embodiment Two;

FIG. 15 is a view of the assembly of pins according to Embodiment Two;

in figures: neck housing-1; fixed base-101; face housing-102; side housing-2; universal joint-3; limit stop bar-301; air outlet assembly-4; sealed air cavity-5; fan motor-501; air outlet-502; elongated section-503; guide rib-504; spherical receiving chamber-6; first curved groove-601; opening groove-602; fan-7; second fixed base-8; third fixed base-9; positioning member-10; positioning hole-1001; pin-11; spring-12.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Further description of the present invention will be made below in combination with drawings.

Embodiment One

As shown in FIGS. 1 to 9, the invention provides a neck fan with a universally adjustable angle. Compared with the traditional one-piece U-shaped neck fan, the neck fan is divided into three parts, which, specifically, include a neck housing 1 that may be hung on the neck, and a side housing 2 that may extend to both sides of the neck. The three housings together form a U-shaped shape. The middle of the neck housing 1 is made of soft rubber, which makes it easy for users to wear and may expand a U-shaped opening so as to be easily hung around the neck. The side housing 2 is connected to the neck housing 1 by means of a universal joint 3 disposed at an end, and an air outlet assembly 4 is disposed inside the neck housing 1. This design allows the angle to be adjusted according to the user needs, providing a more personalized user experience and improving the flexibility of fan use.

Optionally, the air outlet assembly 4 may further be mounted inside the neck housing 1, as shown in FIGS. 8 and 9, so that a back of the neck may enjoy airflow and improve the user experience.

More specifically, the air outlet assembly 4 includes a sealed air chamber 5 independent of the side housing, which may effectively maintain the airtightness of an air duct to reduce loss in air volume and increase the blowing volume and the requirements for body comfort; a fan motor 501 is mounted inside the sealed air cavity 5, which may provide strong power support and generate greater air pressure, and a side of the sealed air cavity 5 is provided with a large-flow air outlet 502, which may distribute the airflow to a larger area, accelerate the cooling speed and allow users to experience a more comfortable cooling effect.

As a preferred embodiment, the sealed air cavity 5 is provided inside with an elongated section 503 disposed corresponding to the air outlet 502, and a width of the elongated section 503 is gradually decreased from the fan motor 501 to a distal end, as shown in FIG. 6. This design is because the air speed is greater closer to the fan motor 501 and relatively smaller further away; by gradually reducing the width of the elongated section 503, the airflow speed may be gradually increased after passing through the elongated section 503, thus achieving a greater air speed at a greater distance. In this way, a more balanced distribution of airflow across different positions is ensured while maintaining a stable overall air speed, thus improving the uniformity of the air blowing.

As a preferred embodiment, a plurality of guide ribs 504 are disposed inside the elongated section 503, and the guide ribs 504 extend from an interior of the elongated section 503 toward the air outlet 502, as shown in FIGS. 6 and 7. The guide rib 504 may guide the airflow in a specific direction, further enhancing the directional nature of the air blowing and making the fan perform better.

In the embodiment, the universal joint 3 is integrally formed on the side housing 2, which may improve the overall strength and rigidity, and also simplify the assembly process. Of course, in addition to this method, a separate universal joint 3 may further be provided, which is fixed after being assembled with front and rear covers of the side housing 2, similar to a spherical receiving chamber 6 described below.

In the embodiment, the neck housing 1 includes a fixed base 101 and a face housing 102, an end of the face housing 102 is provided with a spherical receiving chamber 6, and the spherical receiving chamber 6 is provided with a first curved groove 601 disposed corresponding to the universal joint 3; the fixed base 101 is provided with a second curved groove that cooperates with the first curved groove 601, and the universal joint 3 is enclosed between the first curved groove 601 and the second curved groove. In this design, the universal joint 3 is also configured as a ball joint, which achieves universal rotation through the first curved groove 601 and the second curved groove. Of course, the design is not limited to a ball joint, and may be any shape within the first curved groove 601 and the second curved groove, as long as universal rotation may be achieved. Preferably, a spherical shape is preferred because better stability and balance may be provided.

In the embodiment, a limit stop bar 301 is disposed outside the universal joint 3, and the first curved groove 601 is provided with an opening groove 602 disposed corresponding to the limit stop bar 301. In this design, the limit stop bar 301 is disposed outside the universal joint 3, so that the universal joint 3 may rotate flexibly, while also limiting a rotation range of the universal joint 3 to a certain extent, thereby preventing from rotating unnecessarily under unrestricted conditions. The first curved groove 601 is provided with the opening groove 602 corresponding to the limit stop bar 301, which may effectively cooperate the universal joint 3 with the limit stop bar 301; when the universal joint 3 is rotated to a certain position, the opening groove 602 will contact a curved surface, so that the universal joint 3 may no longer be rotated, thereby limiting a rotation angle of the universal joint 3. This design not only effectively controls the rotation range of the universal joint 3, but also avoids unnecessary impacts during the movement, thus improving the convenience and stability of the product.

Embodiment Two

As shown in FIGS. 10 to 15, the embodiment is mainly different from Embodiment One in the position where the air outlet assembly 4 is disposed and the locking structure of the universal joint 3.

In the embodiment, the air outlet assembly 4 is disposed outside the side housing 2, and the air outlet assembly 4 includes a fan 7 directly mounted on the side housing 2. The airflow generated by the fan 7 is blown out directly, forming a direct-blowing air outlet structure. This design eliminates the need for complex air ducts, resulting in more direct and stronger airflow and making it suitable for user scenarios with requirements in high air speed.

In the embodiment, an automatically locking mechanism is used in the fixing structure of the universal joint 3. Specifically, the neck housing 1 is provided with an integrally-formed second fixed base 8 and a detachably-connected third fixed base 9. The universal joint 3 is clamped between the second fixed base 8 and the third fixed base 9.

To achieve automatic fixing after angle adjustment, the universal joint 3 is provided with a positioning member 10, and the positioning member 10 is provided with a plurality of positioning holes 1001. The neck housing 1 is provided correspondingly with a telescopic pin 11 and a spring 12 for driving the pin 11 to telescope. When the user adjusts the side housing 2 to the desired angle, the pin 11 may automatically extend and retract into the corresponding positioning hole 1001 to achieve automatic locking for the angle.

The technical principles of the invention have been described above with reference to specific embodiments. These descriptions are for the purpose of explaining the principles of the invention and should not be construed in any way as limiting the scope of protection of the invention. Based on the explanation herein, those skilled in the art can readily conceive of other specific embodiments of the invention without any inventive effort, and these embodiments will all fall within the protection scope of the claims of the invention.

Claims

1. A neck fan with universally adjustable angle, comprising a neck housing (1) and a side housing (2) connected to both ends of the neck housing (1), wherein an end of the side housing (2) is provided with a universal joint (3), and the universal joint (3) and the neck housing (1) form a universal connection; the side housing (2) is provided with an air outlet assembly (4).

2. The neck fan with universally adjustable angle according to claim 1, wherein the neck housing (1) is further provided with the air outlet assembly (4).

3. The neck fan with universally adjustable angle according to claim 2, wherein the air outlet assembly (4) comprises a sealed air cavity (5), the sealed air cavity (5) is provided inside with a fan motor (501), and the sealed air cavity (5) is further provided with an air outlet (502).

4. The neck fan with universally adjustable angle according to claim 3, wherein the sealed air cavity (5) is provided inside with an elongated section (503) disposed corresponding to the air outlet (502), and a width of the elongated section (503) is gradually decreased from the fan motor (501) to a distal end.

5. The neck fan with universally adjustable angle according to claim 4, wherein a plurality of guide ribs (504) are disposed inside the elongated section (503), and the guide ribs (504) extend from an interior of the elongated section (503) toward the air outlet (502).

6. The neck fan with universally adjustable angle according to claim 1, wherein the universal joint (3) is integrally formed on the side housing (2).

7. The neck fan with universally adjustable angle according to claim 6, wherein the neck housing (1) comprises a fixed base (101) and a face housing (102), an end of the face housing (102) is provided with a spherical receiving chamber (6), and the spherical receiving chamber (6) is provided with a first curved groove (601) disposed corresponding to the universal joint (3); the fixed base (101) is provided with a second curved groove that cooperates with the first curved groove (601), and the universal joint (3) is enclosed between the first curved groove (601) and the second curved groove.

8. The neck fan with universally adjustable angle according to claim 7, wherein a limit stop bar (301) is disposed outside the universal joint (3), and the first curved groove (601) is provided with an opening groove (602) disposed corresponding to the limit stop bar (301).

9. The neck fan with universally adjustable angle according to claim 1, wherein the air outlet assembly (4) comprises a fan (7) mounted on the side housing (2).

10. The neck fan with universally adjustable angle according to claim 9, wherein the neck housing (1) is provided inside with a second fixed base (8) and a third fixed base (9), the second fixed base (8) is integrally formed inside the neck housing (1), and the second fixed base (8) and the third fixed base (9) are detachably connected with each other; the universal joint (3) is clamped between the second fixed base (8) and the third fixed base (9), the universal joint (3) is provided with a positioning member (10), and the positioning element (10) is provided with a plurality of positioning holes (1001); the neck housing (1) is provided correspondingly with a telescopic pin (11) and a spring (12) for driving the pin (11) to telescope, and the pin (11) may be inserted into the positioning hole (1001) to fix a rotation angle of the universal joint.