Portable fan

Abstract

The utility model provides a portable fan which comprises a shell, an air inlet, an air outlet and an air duct connected with the air inlet and the air outlet, and the air duct extends in the length direction of the shell; the motor is arranged in the shell, the motor is a three-phase high-speed motor, and the motor comprises a stator assembly, a rotor assembly and a fan; the power supply part is electrically connected with the motor; wherein the shell at least comprises two parts, and the two parts rotate relative to each other so as to be switched between a straight line state and a broken line state. The portable fan can be switched between the linear state and the broken line state, the portable fan can be conveniently stored in the linear state, the portable fan can be conveniently used for blowing in the broken line state, and the portable fan is convenient to carry and use and small in occupied space.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to a portable fan with a changeable shape. Background Art

[0002] In hot weather, portable fans are hair-drying devices that people can carry with them in their daily lives, when they go out for fun, travel, or on business trips.

[0003] However, the existing portable fans are usually provided with an air outlet and a hand-held part, and the air outlet and the hand-held part are usually T-shaped, occupying a large space and being inconvenient to be stored in a backpack. Therefore, there is an urgent need for a portable fan with a small size and flexible deformation. Summary of the invention

[0004] In view of this, the present application provides a portable fan that can be transformed between a straight state and a folded state. In the straight state, the portable fan is convenient for storage, and in the folded state, the portable fan is convenient for use for blowing air. It is easy to carry and use and occupies less space.

[0005] The present application provides a portable fan, comprising: a shell, comprising an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet, wherein the air duct extends along the length direction of the shell; a motor, disposed in the shell, the motor is a three-phase high-speed motor, and the motor comprises a stator assembly, a rotor assembly and a fan; a power supply, electrically connected to the motor; wherein the shell comprises at least two parts, and the two parts rotate relative to each other to transform between a straight line state and a broken line state.

[0006] Furthermore, the shell includes a first part, a second part and a third part, the first part and the second part can be rotated to form an angle, and the second part and the third part can be rotated to form an angle.

[0007] Furthermore, the shell includes a first part and a second part, a connecting piece is provided between the first part and the second part, and the first part and the second part can be rotated to form an angle.

[0008] Furthermore, the connecting member includes a first surface and a second surface arranged opposite to each other, and a first connecting portion and a second connecting portion matching each other, the first surface is arranged at one end of the first portion, the first connecting portion is arranged at the first surface, the second surface is arranged at one end of the second portion, and the second connecting portion is arranged at the second surface.

[0009] Furthermore, the first surface and the second surface are both inclined planes, and the inclination angles of the first surface and the second surface are the same, one of the first connecting part and the second connecting part is a convex ring, and the other is a slot, the first connecting part and the second connecting part rotate, and at the same time, the first surface and the second surface rotate, so that the first part and the second part are transformed between a straight line state and a broken line state; there is a connected part between the first part and the second part.

[0010] Furthermore, a partition is provided in the second part, and the partition divides the internal space of the second part into the air duct and a partition chamber. The power supply and the circuit board are accommodated in the partition chamber. The motor is arranged in the air duct, and the circuit board is electrically connected to the power supply and the motor respectively. The air inlet is arranged at the free end of the second part, and the air outlet is arranged at the free end of the first part.

[0011] Furthermore, the power supply is arranged at the free end of the second part, the motor is arranged at the second part, and the motor is arranged above the power supply, the second part is provided with the air inlet on the side wall between the power supply and the motor, and the air outlet is arranged at the free end of the first part.

[0012] Furthermore, the motor is arranged on the first part, the air inlet is arranged on the side wall of the second part close to the second surface, and the air outlet is arranged at the free end of the first part; when the first part and the second part are in a fold line state, the air inlet is opposite to the fan.

[0013] Furthermore, both the first surface and the second surface are arc surfaces, one of the first connecting part and the second connecting part is a slider, and the other is a slide groove, the first connecting part slides between the second connecting part, and the first surface slides relative to the second surface, so that the first part and the second part are transformed between a straight line state and a broken line state.

[0014] Furthermore, the motor is arranged in the first part, and the motor includes a cylinder, and the cylinder includes an outer ring part, an inner ring part, and a plurality of connecting blades connecting the outer ring part and the inner ring part, the first surface is provided with the air inlet, and the free end of the first part is provided with the air outlet; a base plate is provided in the inner ring part, and a hollow shaft cylinder protrudes and extends from the base plate toward the air inlet, the stator assembly and the rotor assembly are nested and fixed to the shaft cylinder in the direction of the air outlet, and the fan is provided on the side of the stator assembly and the rotor assembly close to the air inlet.

[0015] Compared with the prior art, the portable fan of the present application has the following beneficial effects: the portable fan can be transformed between a straight state and a folded state. In the straight state, the portable fan is convenient for storage, and in the folded state, the portable fan is convenient for use for blowing air. It is easy to carry and use, and occupies less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a straight line state provided by an embodiment of the present application;

[0017] Figure 2 It is a three-dimensional diagram of the folding line state provided by the embodiment of the present application;

[0018] Figure 3 It is a partial exploded view provided by an embodiment of the present application;

[0019] Figure 4 is a cross-sectional view of a motor provided in an embodiment of the present application;

[0020] Figure 5 is a side view of a folded line state provided by another embodiment of the present application;

[0021] Figure 6 is a three-dimensional diagram of a straight line state provided by another embodiment of the present application;

[0022] Figure 7 is a three-dimensional diagram of a folded line state provided by another embodiment of the present application;

[0023] Figure 8 is an exploded view provided by another embodiment of the present application;

[0024] Fig. 9 is a schematic diagram of a first part provided by another embodiment of the present application;

[0025] Fig.10 It is a three-dimensional diagram of a fold provided by another embodiment of the present application;

[0026] Fig.11 It is a three-dimensional image folded twice provided by another embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to facilitate a better understanding of the purpose, structure, features, and functions of the present application, the present application is further described in conjunction with the accompanying drawings and specific implementation methods.

[0028] It should be noted that when an element is considered to be “connected to” another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0029] In this application, descriptions such as “first”, “second”, etc. are only used for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0030] In the description of the present application, the terms "front", "back", "left", "right", "up", "down", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0031] In one embodiment, the portable fan comprises a housing 1, wherein the housing 1 comprises at least two parts, and the two parts rotate relative to each other to switch between a straight state and a folded state. The portable fan can switch between a straight state and a folded state. The straight state is convenient for storing the portable fan, and the folded state is convenient for blowing air. The portable fan is easy to carry and use, and occupies less space.

[0032] In one embodiment, Figures 1 to 3 , which is a schematic diagram of the portable fan of the present application. The housing 1 comprises an air inlet 11, an air outlet 12, and an air duct 13 connecting the air inlet 11 and the air outlet 12, wherein the air duct 13 extends along the length direction of the housing 1.

[0033] In one embodiment, Figures 1 to 3 As shown, the housing 1 includes a first part 1a and a second part 1b, and a connecting member 14 is provided between the first part 1a and the second part 1b, and the first part 1a and the second part 1b can be rotated to form an angle. The connecting member 14 includes a first surface 141 and a second surface 143 that are arranged opposite to each other, and a first connecting portion 142 and a second connecting portion 144 that match each other. The first surface 141 is provided at one end of the first part 1a, and the first connecting portion 142 is provided at the first surface 141; the second surface 143 is provided at one end of the second part 1b, and the second connecting portion 144 is provided at the second surface 143. There is a connected part between the first part 1a and the second part 1b.

[0034] In one embodiment, Figures 1 to 3As shown, the first surface 141 and the second surface 143 are both inclined planes, and the first surface 141 and the second surface 143 have the same inclination angle. When the inclination angle of the first surface 141 and the second surface 143 is 45°, the first part 1a and the second part 1b form a 90° angle in the folded line state. Of course, the inclination angles of the first surface 141 and the second surface 143 can be other angles. The first connecting portion 142 is a convex ring, and the second connecting portion 144 is a groove. The first connecting portion 142 and the second connecting portion 144 rotate, and the first surface 141 and the second surface 143 rotate at the same time, so that the first part 1a and the second part 1b are transformed between the straight line state and the folded line state. In other embodiments, the first connecting portion 142 can also be a groove, and the second connecting portion 144 can be a convex ring; or the first connecting portion 142 and the second connecting portion 144 can also be a spherical connection method or other connection methods. It should be noted that the portable fan can be used normally in both the straight line state and the folded line state.

[0035] In one embodiment, Figure 3 and Figure 4 As shown, the portable fan also includes a motor and a power supply 7 arranged in the housing 1, and the power supply 7 is electrically connected to the motor. By directly arranging the power supply 7 in the housing 1, the power supply 7 can directly power the portable fan, so that the portable fan can be used normally without connecting to an external power supply. The motor is a three-phase high-speed motor, and the motor includes a stator assembly 4, a rotor assembly 5 and a fan 6. The motor includes a barrel 2, and the barrel 2 includes an outer ring portion 21, an inner ring portion 22, and a plurality of connecting leaves 23 connecting the outer ring portion 21 and the inner ring portion 22. A base plate 24 is provided in the inner ring portion 22, and a hollow shaft cylinder 25 protrudes and extends from the base plate 24 toward the direction of the air inlet 11. The stator assembly 4 and the rotor assembly 5 are nested and fixed to the shaft cylinder 25 in the direction of the disposal port. The rotor assembly 5 further includes a bearing 52, a rotating shaft 51 and a magnetic ring 53. The bearing 52 is sleeved on the outside of the rotating shaft 51, and one end of the rotating shaft 51 is inserted into the shaft barrel 25. The stator assembly 4 is arranged on the outside of the shaft barrel 25, the magnetic ring 53 is arranged on the outside of the stator assembly 4, the fan 6 is arranged on the side of the stator assembly 4 and the rotor assembly 5 close to the air inlet 11, and the other end of the rotating shaft 51 is fixed to the fan 6. That is, the motor is an outer rotor motor, which has the advantages of compact structure, convenient installation, reliable operation, low noise, energy saving and high efficiency.

[0036] In one embodiment, Figure 3 and Figure 4As shown, a partition (not numbered, the same below) is provided in the second part 1b, and the partition divides the internal space of the second part 1b into the air duct 13 and a partition cavity (not numbered, the same below). The partition cavity accommodates the power supply 7 and a circuit board (not numbered, the same below), the motor is arranged in the air duct 13, and the circuit board is electrically connected to the power supply 7 and the motor respectively. The air inlet 11 is arranged at the free end of the second part 1b, and the air outlet 12 is arranged at the free end of the first part 1a. The internal structure of the product is reasonably distributed, and the portable fan is compact as a whole and easy to carry and use.

[0037] In one embodiment, the power supply 7 may be arranged at the free end of the second part 1b, the motor may be arranged at the second part 1b, and the motor may be arranged above the power supply 7, the second part 1b may be provided with the air inlet 11 on the side wall between the power supply 7 and the motor, and the air outlet 12 may be arranged at the free end of the first part 1a. The partition may or may not be arranged between the motor and the power supply 7. The internal structure of the product is reasonably distributed, and the portable fan is compact as a whole and easy to carry and use.

[0038] In one embodiment, the motor is provided in the first part 1a, referring to Figure 5 The air inlet 11 is disposed on the side wall of the second portion 1b close to the second surface 143, and the air outlet 12 is disposed at the free end of the first portion 1a. When the first portion 1a and the second portion 1b are in a folded line state, the air inlet 11 faces the fan 6.

[0039] In one embodiment, Figures 6 to 9 As shown, both the first surface 141 and the second surface 143 are arc surfaces, and one of the first connecting portion 142 and the second connecting portion 144 is a slider, and the other is a slide groove. The first connecting portion 142 and the second connecting portion 144 slide together, and the first surface 141 and the second surface 143 slide together, so that the first part 1a and the second part 1b can be transformed between a straight line state and a folded line state. In this embodiment, the curvature of the first surface 141 and the second surface 143 are consistent, and in other embodiments, the curvature of the first surface 141 and the second surface 143 can also be different. It should be understood that the rotational connection between the first part 1a and the second part 1b can be a snap-on rotation, a sliding rotation, or other connection methods, as long as it can ensure that the housing 1 can be transformed between a straight line state and a folded line state, and the examples are not limited thereto.

[0040] In one embodiment, Figures 6 to 9As shown, the motor is disposed in the first part 1a. The air inlet 11 is disposed on the first surface 141, and the air outlet is disposed at the free end of the first part 1a. In this embodiment, the cylinder 2 is disposed in the first part 1a, and in other embodiments, the cylinder 2 may also be directly the shell of the first part 1a.

[0041] In one embodiment, Fig.10 and Fig.11 As shown, the housing 1 may further include a first portion 1a, a second portion 1b and a third portion 1c, wherein the first portion 1a and the second portion 1b may be rotated to form an angle, and the second portion 1b and the third portion 1c may be rotated to form an angle. The rotational connection between the first portion 1a and the second portion 1b, and between the second portion 1b and the third portion 1c may be a snap rotation, a sliding rotation, or other connection modes, as long as it can ensure that the housing 1 can be transformed between a straight line state and a folded line state, and the examples are not limiting.

[0042] The above detailed description is only an explanation of the preferred embodiment of the present application, and does not limit the patent scope of the present application. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.

Claims

1. A portable fan, characterized in that: include: A shell, comprising an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet, wherein the air duct extends along the length direction of the shell; A motor is disposed in the housing, wherein the motor is a three-phase high-speed motor and comprises a stator assembly, a rotor assembly and a fan; a power supply, electrically connected to the motor; Wherein, the shell comprises at least two parts, and the two parts rotate relative to each other to change between a straight line state and a folded line state.

2. The portable fan according to claim 1, characterized in that: The shell includes a first part, a second part and a third part. The first part and the second part can be rotated to form an angle, and the second part and the third part can be rotated to form an angle.

3. The portable fan according to claim 1, characterized in that: The shell includes a first part and a second part, a connecting piece is provided between the first part and the second part, and the first part and the second part can rotate to form an angle.

4. The portable fan according to claim 3, characterized in that: The connecting member includes a first surface and a second surface arranged opposite to each other, and a first connecting portion and a second connecting portion matching each other, wherein the first surface is arranged at one end of the first portion, the first connecting portion is arranged at the first surface, the second surface is arranged at one end of the second portion, and the second connecting portion is arranged at the second surface.

5. The portable fan according to claim 4, characterized in that: The first surface and the second surface are both inclined planes, and the inclination angles of the first surface and the second surface are the same; one of the first connecting part and the second connecting part is a convex ring, and the other is a slot; the first connecting part and the second connecting part rotate, and at the same time, the first surface and the second surface rotate, so that the first part and the second part are transformed between a straight line state and a broken line state; there is a connected part between the first part and the second part.

6. The portable fan according to claim 5, characterized in that: A partition is provided in the second part, and the partition divides the internal space of the second part into the air duct and a partition cavity. The power supply and the circuit board are accommodated in the partition cavity. The motor is arranged in the air duct, and the circuit board is electrically connected to the power supply and the motor respectively. The air inlet is arranged at the free end of the second part, and the air outlet is arranged at the free end of the first part.

7. The portable fan according to claim 5, characterized in that: The power supply is arranged at the free end of the second part, the motor is arranged at the second part, and the motor is arranged above the power supply, the second part is provided with the air inlet on the side wall between the power supply and the motor, and the air outlet is arranged at the free end of the first part.

8. The portable fan according to claim 5, characterized in that: The motor is arranged on the first part, the air inlet is arranged on the side wall of the second part close to the second surface, and the air outlet is arranged at the free end of the first part; when the first part and the second part are in a folded line state, the air inlet faces the fan.

9. The portable fan according to claim 4, characterized in that: Both the first surface and the second surface are arc surfaces, one of the first connecting part and the second connecting part is a slider, and the other is a slide groove, the first connecting part slides with the second connecting part, and the first surface slides relative to the second surface, so that the first part and the second part are transformed between a straight line state and a broken line state.

10. The portable fan according to claim 8, characterized in that: The motor is arranged in the first part, and the motor includes a cylinder, and the cylinder includes an outer ring part, an inner ring part, and a plurality of connecting blades connecting the outer ring part and the inner ring part. The first surface is provided with the air inlet, and the free end of the first part is provided with the air outlet; a base plate is provided in the inner ring part, and a hollow shaft cylinder protrudes and extends from the base plate toward the air inlet. The stator assembly and the rotor assembly are nested and fixed to the shaft cylinder in the direction of the air outlet, and the fan is provided on the side of the stator assembly and the rotor assembly close to the air inlet.

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