Multi-air-port fan

Abstract

The multi-air-opening fan comprises a main body part and a head part rotationally arranged on the main body part, the upper end of the main body part is open, a first air opening and a second air opening are formed in the two ends of the head part respectively, a third air opening is formed in the main body part, and the area of the third air opening is larger than that of the second air opening. The fan is in a first state, in the first state, the first air opening is an air inlet, the third air opening is an air outlet, when the head part rotates to the vertically downward state, the fan is in a third state, in the third state, the third air opening is an air inlet, the second air opening is an air outlet, and when the head part rotates to any angle between the vertically upward direction and the vertically downward direction, the fan is in a second state; and in the second state, the first air opening is the air inlet, the second air opening is the air outlet, and the fan can be in the first state, the second state or the third state by rotating the head, so that the fan can be suitable for various scenes, and the practicability of the fan is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a multi-air outlet fan. Background Art

[0002] An electric fan, also simply called a fan or a blower fan, is a household appliance that uses an electric motor to drive the fan blades to rotate to accelerate the flow of air. It is mainly used for cooling and air circulation, and is widely used in places such as homes, classrooms, offices, stores, hospitals, and hotels. The common household electric fan essentially belongs to an axial flow fan, that is, the direction of the air flow is parallel to the rotation axis of the fan blades. The existing fans generally have one air inlet and one air outlet, and the directions of the air inlet and the air outlet are relatively fixed. Such a setting will greatly limit the use scenarios of the fan. Content of the Utility Model

[0003] In order to solve the deficiencies in the prior art, a multi-air outlet fan is provided, which can change the positions of the air inlet and the air outlet and enrich the use scenarios of the fan.

[0004] The utility model is implemented by adopting the following technical solutions:

[0005] A multi-air outlet fan includes a main body part and a head rotatably arranged on the main body part. The upper end of the main body part is open. First air outlets and second air outlets are respectively arranged at both ends of the head. A third air outlet is arranged on the main body part, and the area of the third air outlet is larger than that of the second air outlet.

[0006] When the head rotates to the vertically upward state, the fan is in the first state. In the first state, the first air outlet is the air inlet, and the third air outlet is the air outlet.

[0007] When the head rotates to the vertically downward state, the fan is in the third state. In the third state, the third air outlet is the air inlet, and the second air outlet is the air outlet.

[0008] When the head rotates to any angle between the vertically upward and the vertically downward states, the fan is in the second state. In the second state, the first air outlet is the air inlet, and the second air outlet is the air outlet.

[0009] Further, installation arms are arranged at both ends on the upper side of the main body part. Column holes are formed in the inner walls of the installation arms. Connecting columns are arranged at positions corresponding to the column holes on the side wall of the head. The connecting columns are in interference rotational fit with the column holes.

[0010] Further, a limiting arm is arranged on the side wall of the connecting column, and a limiting groove for installing the limiting arm is arranged on the inner wall of the installation arm.

[0011] Further, the main body portion includes a left housing, a right housing, and a grille plate. The left housing, the right housing, and the grille plate enclose a fan cavity. The grille plate is provided with guide grilles, and a third air outlet is formed between adjacent guide grilles.

[0012] Further, a wind guide plate is provided in the fan cavity. The wind guide plate divides the fan cavity into a wind guide cavity corresponding to the third air outlet and an installation cavity. The wind guide cavity communicates with the upper open end of the main body portion.

[0013] Further, a wind guide surface is provided on the wind guide plate, and a partition plate is provided in the middle of the wind guide plate.

[0014] Further, a storage battery and a control main board are installed in the installation cavity. The main body portion is provided with a start button and a charging interface. The start button, the charging interface, and the storage battery are all electrically connected to the control main board.

[0015] Further, an air inlet frame and a fan blade are sequentially provided in the head along the direction from the first air outlet to the second air outlet. An electric motor is provided on the air inlet frame. The output end of the electric motor is fixedly connected to the fan blade. The electric motor is electrically connected to the control main board.

[0016] Further, a pressurizing member is provided at a position of the head close to the second air outlet.

[0017] Further, the pressurizing member is a pressurizing surface, and the pressurizing surface converges towards the central position of the second air outlet along the direction from the first air outlet to the second air outlet.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. By rotating the head, the fan can be in the first state, the second state, or the third state, so as to be applicable to various scenarios and increase the practicability of the fan.

[0020] 2. In the first state, air enters from the first air outlet located on the upper side and is blown out from the third air outlet on the side wall of the main body portion, so as to achieve large-area air outlet. In the third state, air enters from the third air outlet on the side wall of the main body portion and is blown out from the first air outlet located on the upper side, so as to achieve vertical upward air blowing. In the second state, air is blown out from the second air outlet, and adjusting the angle of the head can adjust the air outlet angle. Through the three use states, the use scenarios of the fan can be enriched, which is convenient for use in different scenarios.

[0021] 3. Through the interference rotation fit between the connecting column and the column hole, the head can be rotated very conveniently, and the position of the head can be fixed after stopping rotation.

[0022] 4. The cooperation between the limiting arm and the limiting groove can be used to prevent the head from rotating excessively.

[0023] 5. The pressure member can be used to increase the air flow velocity at the air outlet, thereby increasing the wind speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of the overall structure of the utility model;

[0026] Figure 2 Schematic diagram of the sectional structure;

[0027] Figure 3 Schematic diagram of the head structure;

[0028] Figure 4 Schematic diagram of the head sectional structure;

[0029] Figure 5 Schematic diagram of the main body structure;

[0030] Figure 6 Schematic diagram of the air deflector structure;

[0031] Figure 7 Schematic diagram of the exploded structure of the main body;

[0032] Figure 8 Schematic diagram of the grille structure;

[0033] Figure 9 Schematic diagram of the state where the head rotates 90 degrees. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the direction or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] As Figures 1-9 shown, a multi-air outlet fan described in the present utility model includes a main body part 2 and a head 1 rotatably arranged on the main body part 2. The upper end of the main body part 2 is provided with an open mouth. First air outlets 3 and second air outlets 4 are respectively arranged at both ends of the head 1. A third air outlet 5 is arranged on the main body part 2. The area of the third air outlet 5 is larger than that of the second air outlet 4. When the head 1 rotates to the vertically upward state, the fan is in the first state. In the first state, the first air outlet 3 is the air inlet, and the third air outlet 5 is the air outlet. In the first state, air enters from the first air outlet 3 located on the upper side and is blown out from the third air outlet 5 located on the side wall of the main body part 1. Since the area of the third air outlet 5 is larger than that of the second air outlet 4, large-area air outlet can be realized. When the head 1 rotates to the vertically downward state, the fan is in the third state. In the third state, the third air outlet 5 is the air inlet, and the second air outlet 4 is the air outlet. In the third state, air enters from the third air outlet 5 on the side wall of the main body part 1 and is blown out from the first air outlet 3 located on the upper side, so that vertically upward blowing can be realized. When the head 1 rotates to any angle between the vertically upward and vertically downward states, the fan is in the second state. In the second state, the first air outlet 3 is the air inlet, and the second air outlet 4 is the air outlet. In the second state, air is blown out from the second air outlet 4. Adjusting the angle of the head 2 can adjust the air outlet angle. When the head 2 rotates 90 degrees, the head 2 is perpendicular to the main body part 1. At this time, horizontal blowing can be realized. By rotating the head 2, the fan can be in the first state, the second state or the third state, so that it can be applied to various scenarios and the practicability of the fan is increased.

[0037] Specifically, mounting arms 6 are arranged at both ends on the upper side of the main body part 2. Column holes 13b are formed in the inner walls of the mounting arms 6. Connecting columns 13a are arranged at positions on the side wall of the head 1 corresponding to the column holes 13b. The connecting columns 13a are in interference rotation fit with the column holes 13b. Through the interference rotation fit between the connecting columns 13a and the column holes 13b, the head 1 can be rotated very conveniently, and the position of the head 1 can be fixed after stopping rotation.

[0038] Specifically, a limiting arm 14a is provided on the side wall of the connecting column 13a, and a limiting groove 14b for installing the limiting arm 14a is provided on the inner wall of the mounting arm 6. The cooperation between the limiting arm 14a and the limiting groove 14b can be used to prevent the excessive rotation of the head 1. By restricting the excessive rotation of the head 1, the problem that the wire connecting the head and the main body is knotted due to rotation can be avoided.

[0039] Specifically, the main body 2 includes a left housing 21, a right housing 22 and a grille plate 10. The left housing 21, the right housing 22 and the grille plate 10 enclose a fan cavity. A guiding grille 101 is provided on the grille plate 10, and a third air outlet 5 is formed between adjacent guiding grilles 101. A guiding plate 9 is provided in the fan cavity. The guiding plate 9 divides the fan cavity into a guiding cavity corresponding to the third air outlet 5 and a mounting cavity. The guiding cavity can be used to guide the air flowing through the main body. The guiding cavity communicates with the upper open end of the main body 2.

[0040] Specifically, a guiding surface 91 is provided on the guiding plate 9, and a partition plate 92 is provided in the middle of the guiding plate 9. The guiding surface 91 and the partition plate 92 can be used to guide the air flowing through the guiding cavity, thereby reducing the wind noise and making the fan quieter in use.

[0041] Preferably, a storage battery 11 and a control main board 12 are installed in the mounting cavity. The main body 2 is provided with a start button 121 and a charging interface 122. The start button 121, the charging interface 122 and the storage battery 11 are all electrically connected to the control main board 12. Installing the storage battery 11 and the control main board 1 in the mounting cavity surrounded by the guiding plate 9 and the main body 1 can fix the storage battery 11 and the control main board 1 and also achieve the effects of dust and water protection.

[0042] Preferably, an air inlet frame 7 and a fan blade 8 are sequentially provided in the head 1 along the direction from the first air outlet 3 to the second air outlet 4. A motor 81 is provided on the air inlet frame 7. The output end of the motor 81 is fixedly connected to the fan blade 8. The motor 81 is electrically connected to the control main board 12. The connecting wire between the motor 81 and the control main board 12 passes through a wire hole provided on the connecting ear. The cooperation between the limiting arm 14a and the limiting groove 14b can be used to prevent the excessive rotation of the head 1. By restricting the excessive rotation of the head 1, the problem that the wire connecting the head and the main body is knotted due to rotation can be avoided.

[0043] Preferably, a pressurizing member is provided at a position of the head 1 close to the second air outlet 4.

[0044] Specifically, the pressurizing member is a pressurizing surface 15. The pressurizing surface 15 converges towards the center position of the second air outlet 4 along the direction from the first air outlet 3 to the second air outlet 4. The pressurizing surface 15 can be used to increase the air flow velocity at the air outlet, thereby increasing the wind speed.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-air outlet fan, characterized in that : comprising a main body (2) and a head (1) rotatably arranged on the main body (2), the upper end of the main body (2) being open, the two ends of the head (1) being respectively provided with a first air outlet (3) and a second air outlet (4), the main body (2) being provided with a third air outlet (5), the area of ​​the third air outlet (5) being larger than the area of ​​the second air outlet (4); When the head (1) rotates to a vertically upward state, the fan is in a first state. In the first state, the first air outlet (3) is an air inlet, and the third air outlet (5) is an air outlet; When the head (1) rotates to a vertically downward state, the fan is in a third state. In the third state, the third air outlet (5) is an air inlet, and the second air outlet (4) is an air outlet; When the head (1) rotates to any angle between vertically upward and vertically downward, the fan is in a second state. In the second state, the first air outlet (3) is an air inlet and the second air outlet (4) is an air outlet.

2. The multi-air outlet fan according to claim 1, characterized in that: The two ends of the upper side of the main body (2) are provided with mounting arms (6), the inner wall of the mounting arms (6) is provided with a column hole (13b), and the side wall of the head (1) is provided with a connecting column (13a) at a position corresponding to the column hole (13b), and the connecting column (13a) and the column hole (13b) are in interference rotational fit.

3. The multi-air outlet fan according to claim 2, characterized in that: The side wall of the connecting column (13a) is provided with a limiting arm (14a), and the inner wall of the mounting arm (6) is provided with a limiting groove (14b) for mounting the limiting arm (14a).

4. The multi-air outlet fan according to claim 1, characterized in that: The main body (2) comprises a left shell (21), a right shell (22) and a grille plate (10); the left shell (21), the right shell (22) and the grille plate (10) together form a fan cavity; an air guide grille (101) is provided on the grille plate (10); and a third air outlet (5) is formed between adjacent air guide grilles (101).

5. The multi-air outlet fan according to claim 4, characterized in that: An air guide plate (9) is provided in the fan cavity, and the air guide plate (9) divides the fan cavity into an air guide cavity corresponding to the third air outlet (5) and an installation cavity, and the air guide cavity is connected to the upper end opening of the main body (2).

6. The multi-air outlet fan according to claim 5, characterized in that: The wind guide plate (9) is provided with a wind guide surface (91), and a separation plate (92) is provided in the middle of the wind guide plate (9).

7. The multi-air outlet fan according to claim 5, characterized in that: A storage battery (11) and a control mainboard (12) are installed in the installation cavity, and the main body (2) is provided with a start button (121) and a charging interface (122); the start button (121), the charging interface (122) and the storage battery (11) are all electrically connected to the control mainboard (12).

8. The multi-air outlet fan according to claim 1, characterized in that: An air inlet frame (7) and a fan blade (8) are sequentially arranged in the head (1) along the direction from the first air outlet (3) to the second air outlet (4); a motor (81) is arranged on the air inlet frame (7); an output end of the motor (81) is fixedly connected to the fan blade (8); and the motor (81) is electrically connected to a control main board (12).

9. The multi-air outlet fan according to claim 1, characterized in that: A pressure piece is provided at a position of the head (1) close to the second air outlet (4).

10. The multi-air outlet fan according to claim 9, characterized in that: The pressure member is a pressure surface (15), and the pressure surface (15) converges toward the center position of the second air outlet (4) along the direction from the first air outlet (3) to the second air outlet (4).

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