Neck fan

Abstract

The utility model discloses a neck-hanging fan, which relates to the technical field of household electrical appliances, and comprises a shaft assembly and an air outlet unit; the shaft assembly comprises a shaft member and an elastic sheet, and shaft bodies are respectively formed on both sides of the shaft member, and the elastic sheet is passed through / straddled at the shaft assembly; the shaft body of the shaft member is embedded in the shaft seat of the air outlet unit, so that the air outlet unit can swing relative to the shaft member; the end of the elastic sheet abuts against at least a part of the inner cover shell and / or the outer cover shell of the air outlet unit, so that the air outlet unit can be reset after swinging relative to the shaft member. The utility model mainly solves the problem of how to provide a connection structure for the left and right air outlet units of the neck-hanging fan that is comfortable to wear and not easy to be damaged; the utility model not only eliminates the discomfort caused by the neck-hanging fan when worn, but also improves the fit between the neck-hanging fan and the neck, and the connection structure has high mechanical strength and is not easy to be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a neck-hanging fan. Background Art

[0002] Neck hanging fans are a type of portable fan that can be worn on the neck and blow air to the neck, face and head. Neck hanging fans are very popular because they do not need to be held by hand.

[0003] The neck hanging fan in the prior art usually includes a left air outlet unit and a right air outlet unit, and the left air outlet unit and the right air outlet unit are connected to each other through a mechanical structure to form a complete neck hanging fan.

[0004] In some cases, the left air outlet unit and the right air outlet unit of the neck-hanging fan with the above structure are rigidly connected via a rotating shaft. In this case, when the neck-hanging fan is in the worn state, the rotating shaft is located at the back of the neck, causing a certain discomfort to the back of the neck.

[0005] In other cases, the left air outlet unit and the right air outlet unit of the neck hanging fan of the above structure are flexibly connected by a silicone rubber tube. In this case, due to the high flexibility of the silicone rubber tube, the left air outlet unit and / or the right air outlet unit can easily fall off from the silicone rubber tube.

[0006] In summary, how to provide a connection structure for the left air outlet unit and the right air outlet unit of the neck hanging fan that is comfortable to wear and not prone to damage has become one of the problems that need to be solved urgently. Utility Model Content

[0007] The utility model aims to provide a neck-hanging fan, which can provide a connection structure for an air outlet unit that is comfortable to wear and not prone to damage.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a neck hanging fan, which includes a rotating shaft assembly and two air outlet units symmetrically arranged with each other; each of the air outlet units includes an inner covering shell, an air outlet functional assembly and an outer covering shell; an air inlet grille and a plurality of air outlets are provided at the inner covering shell, the inner covering shell and the outer covering shell are combined and fixed to each other, and the air outlet functional assembly is accommodated and fixed between the inner covering shell and the outer covering shell; the air outlet functional assembly is used to drive air flow to inlet air from the air inlet grille of the inner covering shell and blow it out from the air outlet of the inner covering shell; the rotating shaft assembly includes a rotating shaft A component and a plurality of elastic sheets, a shaft body is formed on both sides of the shaft component, the elastic sheet is passed through / straddled on the shaft component, so that both ends of the elastic sheet are exposed from both sides of the shaft component; in each of the air outlet units, a shaft seat is formed at the end of the inner cover shell and the outer cover shell; the shaft body of the shaft component is embedded in the shaft seat of the air outlet unit, so that the air outlet unit can swing relative to the shaft component; the end of the elastic sheet is abutted against at least a part of the inner cover shell and / or the outer cover shell of the air outlet unit, so that the air outlet unit can be reset after swinging relative to the shaft component.

[0009] In the above technical solution, in each of the air outlet units, a first half-rotating shaft seat is formed at the end of the inner covering shell, and a second half-rotating shaft seat is formed at the end of the outer covering shell. After the inner covering shell and the outer covering shell are combined with each other, the first half-rotating shaft seat is also combined with the second half-rotating shaft seat to form the rotating shaft seat.

[0010] In the above technical solution, in each of the air outlet units, a first spring-type matching rib is formed on the inner side of the inner covering shell, and a second spring-type matching rib is formed on the inner side of the outer covering shell; after the inner covering shell and the outer covering shell are combined with each other, the end of the elastic sheet is against the first spring-type matching rib of the inner covering shell on one side and against the second spring-type matching rib of the outer covering shell on the other side.

[0011] In the above technical solution, the shaft assembly also includes a retaining member; a through hole is formed at the shaft member and runs through the shaft member transversely, the elastic sheet passes through the through hole of the shaft member transversely, and both ends of the elastic sheet are exposed from both sides of the shaft assembly; the retaining member is embedded in the through hole of the shaft member to fix the elastic sheet at the shaft member.

[0012] In the above technical scheme, the air outlet function component includes an air duct inner shell and a vortex fan; a fan installation area and a guide air duct area are formed at the air duct inner shell, and the fan installation area and the guide air duct area are interconnected; the vortex fan is arranged in the fan installation area of ​​the air duct inner shell; the air duct inner shell is accommodated and fixed between the inner covering shell and the outer covering shell, so that the inner covering shell encloses the opening of the air duct inner shell, at this time, the air inlet grille of the inner covering shell is located at the axial position of the vortex fan, and the air outlet of the inner covering shell is arranged sequentially along the extension direction of the guide air duct area of ​​the air duct inner shell.

[0013] In the above technical solution, a plurality of guide ribs are arranged in sequence on the inner wall of the guide air duct area along its own extension direction.

[0014] In the above technical solution, at least one of the air outlet units accommodates a battery and a circuit board; the circuit board is electrically connected to the battery, and the circuit board is also electrically connected to the vortex blower of the air outlet functional component.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: in the neck-hanging fan of the utility model, the shaft body of the shaft component is embedded in the shaft seat of the air outlet unit, so that the air outlet unit can swing relative to the shaft component, and the end of the elastic sheet is abutted against the inner cover shell and / or the outer cover shell of the air outlet unit, so that the air outlet unit can be reset after swinging relative to the shaft component. In this way, the discomfort caused by the neck-hanging fan when worn is eliminated, and the fit between the neck-hanging fan and the neck is improved (after wearing, the elastic sheet resets the two air outlet units, thereby making the two air outlet units fit the neck more closely), and the connecting structure has high mechanical strength and is not easy to be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the utility model.

[0017] Figure 2 This is an exploded view of the present invention.

[0018] Figure 3 for Figure 2 A is a partial enlarged view of the figure.

[0019] Figure 4 for Figure 2 A partial enlarged view of B.

[0020] Figure 5 This is a structural view of the rotating shaft assembly in the present utility model.

[0021] Figure 6 This is a structural view of the air outlet function component in the utility model.

[0022] The accompanying drawings are marked as follows: 1. inner covering shell; 11. air inlet grille; 12. air outlet; 13. first half-shaft seat; 14. first spring piece matching rib; 2. air outlet functional component; 21. air duct inner shell; 211. fan placement area; 212. guide air duct area; 213. guide rib; 22. vortex fan; 3. outer covering shell; 31. second half-shaft seat; 32. second spring piece matching rib; 4. shaft assembly; 41. shaft member; 411. shaft body; 412. perforation; 42. elastic sheet; 43. retaining member; 5. battery; 6. circuit board; 10. air outlet unit. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 6 The present embodiment provides a neck hanging fan, which includes a rotating shaft assembly 4 and two air outlet units 10 symmetrically arranged with respect to each other.

[0025] See also Figure 1 , Figure 2 and Figure 6 Each air outlet unit 10 includes an inner covering shell 1, an air outlet functional component 2 and an outer covering shell 3, wherein the inner covering shell 1 and the outer covering shell 3 are both half shells made of engineering plastics.

[0026] An air inlet grille 11 and a plurality of air outlets 12 are provided at the inner covering shell 1, wherein the air inlet grille 11 is composed of a plurality of point-shaped holes, and the air outlet 12 is composed of a plurality of strip-shaped through holes; the inner covering shell 1 and the outer covering shell 3 are combined and fixed to each other, and the air outlet functional component 2 is accommodated and fixed between the inner covering shell 1 and the outer covering shell 3. In this embodiment, the three are fixed to each other by screws and / or snaps; the air outlet functional component 2 is used to drive the airflow to inlet from the air inlet grille 11 of the inner covering shell 1 and blow out from the air outlet 12 of the inner covering shell 1.

[0027] See also Figure 2 , Figure 3 , Figure 4 and Figure 5The shaft assembly 4 includes a shaft component 41 and a plurality of elastic sheets 42, wherein the shaft component 41 is an integrally formed engineering plastic component, and the elastic sheet 42 is a sheet metal component or a rubber-plastic component with a certain elasticity; a shaft body 411 is formed on both sides of the shaft component 41, and in fact, the shaft body 411 is integrally formed on the surface of the shaft component 41; the elastic sheet 42 is passed through / straddled at the shaft assembly 4, so that both ends of the elastic sheet 42 are exposed from both sides of the shaft assembly 4.

[0028] In some possible embodiments, the elastic sheet 42 is a single component; in other possible embodiments, the elastic sheet 42 is composed of two or more stacked sheets; in yet other possible embodiments, the elastic sheet 42 is composed of two or more stacked sheets.

[0029] In each air outlet unit 10, a shaft seat is formed at the end of the inner covering shell 1 and the outer covering shell 3; the shaft body 411 of the shaft member 41 is embedded in the shaft seat of the air outlet unit 10, so that the air outlet unit 10 can swing relative to the shaft member 41; the end of the elastic sheet 42 is abutted against at least a portion of the inner covering shell 1 and / or the outer covering shell 3 of the air outlet unit 10, so that the air outlet unit 10 can be reset after swinging relative to the shaft member 41.

[0030] See also Figure 2 , Figure 3 and Figure 4 Specifically, in each air outlet unit 10, a first half-axle seat 13 is formed at the end of the inner covering shell 1, and the first half-axle seat 13 is integrally formed on the inner side of the inner covering shell 1 and is in the shape of a semicircular groove; a second half-axle seat 31 is formed at the end of the outer covering shell 3, and the second half-axle seat 31 is integrally formed on the inner side of the outer covering shell 3 and is in the shape of a semicircular groove; after the inner covering shell 1 and the outer covering shell 3 are combined with each other, the first half-axle seat 13 is also combined with the second half-axle seat 31 to form an axle seat. At this time, the axle seat is in the shape of a complete circular groove, which is suitable for cooperating with the axle body 411 of the axle member 41.

[0031] See also Figure 2 , Figure 3 and Figure 4Specifically, in each air outlet unit 10, a first spring sheet matching rib 14 is formed on the inner side of the inner cover shell 1, and the first spring sheet matching rib 14 is integrally formed on the inner side of the inner cover shell 1 and is plate-shaped; a second spring sheet matching rib 32 is formed on the inner side of the outer cover shell 3, and the second spring sheet matching rib 32 is integrally formed on the inner side of the outer cover shell 3 and is plate-shaped; after the inner cover shell 1 and the outer cover shell 3 are combined with each other, the end of the elastic sheet 42 is against the first spring sheet matching rib 14 of the inner cover shell 1 on one side, and against the second spring sheet matching rib 32 of the outer cover shell 3 on the other side. In this way, the end of the elastic sheet 42 is against at least a portion of the inner cover shell 1 and the outer cover shell 3 of the air outlet unit 10.

[0032] See also Figure 2 and Figure 5 The shaft assembly 4 also includes a retaining member 43, which is a square rubber-plastic material member with certain elasticity and friction; a through hole 412 is formed at the shaft member 41 that runs through it horizontally, and the elastic sheet 42 passes through the through hole 412 of the shaft member 41 horizontally, and both ends of the elastic sheet 42 are exposed from both sides of the shaft assembly 4; the retaining member 43 is embedded in the through hole 412 of the shaft member 41, and is used to fix the elastic sheet 42 at the shaft member 41; in this embodiment, the retaining member 43 has a groove on its surface, and the elastic sheet 42 has a convex position, and the convex position of the elastic sheet 42 is embedded in the groove of the retaining member 43, so that the elastic sheet 42, the retaining member 43 and the shaft member 41 are tightly combined (wherein the retaining member 43 and the through hole 412 of the shaft member 41 are interference fit).

[0033] See also Figure 2 and Figure 6 The air outlet function component 2 includes an air duct inner shell 21 and a vortex fan 22, wherein the air duct inner shell 21 is a semi-shell made of engineering plastic material, and the vortex fan 22 is a fan driven by a small DC motor; a fan placement area 211 and a guide air duct area 212 are formed at the air duct inner shell 21, and the fan placement area 211 and the guide air duct area 212 are interconnected, wherein the fan placement area 211 and the guide air duct area 212 are chambers surrounded by the air duct inner shell 21, the fan placement area 211 is roughly circular, and the guide air duct area 212 is roughly strip shape; the vortex fan 22 is arranged in the fan installation area 211 of the air duct inner shell 21. In this embodiment, the vortex fan 22 is fixed by screws or buckles; the air duct inner shell 21 is accommodated and fixed between the inner cover shell 1 and the outer cover shell 3, so that the inner cover shell 1 encloses the opening of the air duct inner shell 21. In this embodiment, the three are fixed to each other by screws and / or buckles; at this time, the air inlet grille 11 of the inner cover shell 1 is located at the axial position of the vortex fan 22, and the air outlet 12 of the inner cover shell 1 is arranged in sequence along the extension direction of the guide air duct area 212 of the air duct inner shell 21.

[0034] Furthermore, the inner wall of the guide air duct area 212 is sequentially provided with a number of guide ribs 213 along its own extension direction. In the present embodiment, the guide ribs 213 are integrally formed with the inner wall constituting the guide air duct area 212. The guide ribs 213 divide the inner cavity space of the guide air duct area 212 into an inclined air outlet sub-area inclined toward at least one air outlet 12, and a horizontal airflow notch sub-area pointing to the farther end of the guide air duct area 212.

[0035] The vortex fan 22 can drive the air flow into the guide duct area 212. When the air flow passes through the guide ribs 213 of the guide duct area 212, part of the air flow is guided to the inclined air outlet sub-area and blown out from the air outlet 12, and the other part of the air flow is guided to the horizontal air flow notch sub-area and flows to the farther end of the guide duct area 212, so that the air flow rate of each air outlet 12 of the neck hanging fan is averaged, thereby improving the user experience.

[0036] See also Figure 2 Specifically, at least one air outlet unit 10 contains a battery 5 and a circuit board 6, wherein the circuit board 6 is a printed circuit board, and the circuit board 6 is equipped with a main control for driving the operation of the vortex fan 22, and the battery 5 is a rechargeable lithium battery in a cylindrical shape; in this embodiment, one of the air outlet units 10 contains a battery 5 and a circuit board 6, and the other air outlet unit 10 only contains a battery 5; the circuit board 6 is electrically connected to the battery 5 (through a wire), and the circuit board 6 is also electrically connected to the vortex fan 22 of the air outlet functional component 2 (also through a wire), in this way, the operation of the vortex fan 22 can be driven and controlled; it can be understood that a switch is mounted on the circuit board 6, and a button is embedded in the outer cover shell 3 of the air outlet unit 10, the button is aligned with the switch on the circuit board 6, and pressing the button can trigger the switch on the circuit board 6 to realize the functions of turning on / off the neck fan and adjusting the wind speed.

[0037] Before wearing the neck-hanging fan of this embodiment, the two air outlet units 10 are first opened to allow a larger distance between the two air outlet units 10 so that the two air outlet units 10 can be put on the neck; after wearing, the elastic sheet 42 resets the two air outlet units 10 so that the two air outlet units 10 fit the neck better.

[0038] In the neck-hanging fan of the present embodiment, the shaft body 411 of the shaft component 41 is embedded in the shaft seat of the air outlet unit 10, so that the air outlet unit 10 can swing relative to the shaft component 41, and the end of the elastic sheet 42 abuts against the inner cover shell 1 and / or the outer cover shell 3 of the air outlet unit 10, so that the air outlet unit 10 can be reset after swinging relative to the shaft component 41. In this way, the discomfort caused by the neck-hanging fan when worn is eliminated, and the fit between the neck-hanging fan and the neck is improved (after wearing, the elastic sheet 42 resets the two air outlet units 10, so that the two air outlet units 10 fit the neck more closely), and the connecting structure has high mechanical strength and is not easily damaged.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A neck hanging fan, characterized in that: It includes a rotating shaft assembly and two air outlet units that are symmetrically arranged with respect to each other; Each of the air outlet units comprises an inner covering shell, an air outlet functional component and an outer covering shell; The inner cover shell is provided with an air inlet grille and a plurality of air outlets, the inner cover shell and the outer cover shell are combined and fixed to each other, and the air outlet function component is accommodated and fixed between the inner cover shell and the outer cover shell; The air outlet function component is used to drive the air flow to enter from the air inlet grille of the inner cover shell and blow out from the air outlet of the inner cover shell; The rotating shaft assembly includes a rotating shaft component and a plurality of elastic sheets, the rotating shaft component is provided with a rotating shaft body on both sides, the elastic sheets are passed through / straddled at the rotating shaft assembly, so that the two ends of the elastic sheets are exposed from both sides of the rotating shaft assembly; In each of the air outlet units, a shaft seat is formed at the end of the inner covering shell and the outer covering shell; the shaft body of the shaft component is embedded in the shaft seat of the air outlet unit, so that the air outlet unit can swing relative to the shaft component; the end of the elastic sheet is abutted against at least a portion of the inner covering shell and / or the outer covering shell of the air outlet unit, so that the air outlet unit can be reset after swinging relative to the shaft component.

2. The neck hanging fan according to claim 1, characterized in that: In each of the air outlet units, a first half-rotating shaft seat is formed at the end of the inner covering shell, and a second half-rotating shaft seat is formed at the end of the outer covering shell. After the inner covering shell and the outer covering shell are combined with each other, the first half-rotating shaft seat is also combined with the second half-rotating shaft seat to form the rotating shaft seat.

3. The neck hanging fan according to claim 1 or 2, characterized in that: In each of the air outlet units, a first spring-type matching rib is formed on the inner side of the inner cover shell, and a second spring-type matching rib is formed on the inner side of the outer cover shell; After the inner cover shell and the outer cover shell are combined with each other, the end of the elastic sheet abuts against the first elastic sheet matching rib of the inner cover shell on one side and against the second elastic sheet matching rib of the outer cover shell on the other side.

4. The neck hanging fan according to claim 1 or 2, characterized in that: The rotating shaft assembly also includes a retaining member; The shaft component is formed with a through hole that runs through it transversely, the elastic sheet passes through the through hole of the shaft component transversely, and both ends of the elastic sheet are exposed from both sides of the shaft component; The retaining member is embedded in the through hole of the rotating shaft component and is used to fix the elastic sheet at the rotating shaft component.

5. The neck hanging fan according to claim 1, characterized in that: The air outlet function component includes an air duct inner shell and a vortex fan; The inner shell of the air duct is formed with a fan placement area and a guide air duct area, and the fan placement area and the guide air duct area are connected to each other; The vortex fan is arranged in the fan placement area of ​​the air duct inner shell; The air duct inner shell is accommodated and fixed between the inner covering shell and the outer covering shell, so that the inner covering shell encloses the opening of the air duct inner shell. At this time, the air inlet grille of the inner covering shell is located at the axial position of the vortex fan, and the air outlet of the inner covering shell is arranged in sequence along the extension direction of the guide air duct area of ​​the air duct inner shell.

6. The neck hanging fan according to claim 5, characterized in that: The inner wall of the guide air duct area is provided with a plurality of guide ribs in sequence along its own extension direction.

7. The neck hanging fan according to claim 5 or 6, characterized in that: At least one of the air outlet units contains a battery and a circuit board; The circuit board is electrically connected to the battery, and the circuit board is also electrically connected to the vortex blower of the air outlet function component.

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