Portable multi-angle oscillating fan

Abstract

The utility model belongs to the technical field of portable fans, and particularly relates to a portable multi-angle oscillating fan which comprises a base (1) and a driving assembly (6) arranged in the base. The first fan (3) is arranged on the base, is connected with the driving assembly and can rotate relative to the base; the second fan (4) is arranged on the first fan; the first fan and the second fan are connected through a rotating assembly (2); the first fan can rotate relative to the second fan; by the adoption of the structure, the first fan and the second fan are rotationally connected through the rotating assembly, that is, the second fan rotates relative to the first fan in a manual mode, and by the adoption of the structure, the wind direction of the first fan is different from that of the second fan, that is, the fans can supply wind to more than two users at different positions at the same time; therefore, compared with the prior art, the fan can meet the requirements of more than two users at the same time, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of portable fan technology, specifically a portable multi-angle oscillating fan. Background Technology

[0002] Currently, portable desktop fans are becoming increasingly popular. These small fans include a base with one or two fan bodies on it. Each fan body includes a housing and a fan assembly for blowing air within the housing. To achieve the oscillation function, a motor is installed inside the base to drive the fan body to rotate relative to the base (oscillation), and the motor is connected to the fan body. When using two or more fan bodies, they are stacked together, meaning two or more fan bodies are arranged vertically. In this case, the bottom fan body is directly connected to the motor. Adjacent fan bodies are fixedly connected, meaning they cannot rotate relative to each other. Similarly, the fan body connected to the bottom fan body cannot rotate relative to it. In other words, when two or more fan bodies are connected together, they all rotate relative to the base along with the bottom fan body, but no two fan bodies can rotate relative to each other. With this structure, the airflow from the two or more fan bodies is completely consistent, making it difficult to meet the needs of two or more users. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide.

[0004] The technical solution is as follows: A portable multi-angle oscillating fan includes a base, a drive component disposed within the base; a first fan disposed on the base and connected to the drive component and rotatable relative to the base; a second fan disposed on the first fan; the first fan and the second fan are connected by a rotating component; the first fan can rotate relative to the second fan.

[0005] Preferably, the rotating assembly includes a first rotating assembly disposed within the upper surface of the first fan, a second rotating component disposed within the lower end of the second fan, and a rotating shaft whose lower end is connected to the first rotating assembly and whose upper end is inserted into the second rotating component; when the second fan is rotated, it can rotate relative to the first fan.

[0006] Preferably, the first fan includes a first rear housing, a first front cover, and a first fan assembly disposed within the first rear housing; the second fan includes a second rear housing, a second front cover, and a second fan assembly disposed within the second rear housing; the angle of rotation of the second fan relative to the first fan is between 0 and 350 degrees.

[0007] Preferably, the first rotating assembly is fixed in the top plate of the first rear housing, the second rotating component is fixed in the bottom plate of the second rear housing, and the rotating shaft is perpendicular to the top plate and the bottom plate respectively, and the second rotating component can rotate relative to the rotating shaft.

[0008] Preferably, the first rotating assembly includes a first upper fixing member and a first lower fixing member connected thereto; the first upper fixing member includes a circular upper body with a central through hole and two cylindrical bodies vertically disposed on the bottom surface of the upper body, and the first lower fixing member includes a circular lower body with a central hole; the upper surface of the lower body is provided with two lower through holes; the lower end of the cylindrical body is closed and the upper end is open, and its upper end opening communicates with the upper through hole disposed in the circular upper body.

[0009] Preferably, the first rotating assembly further includes two sets of elastic components; each set of elastic components includes a top post with a rounded head at one end and an internal axial blind hole and a spring; the lower ends of the two cylinders are respectively inserted into two lower through holes; each cylinder is provided with a set of elastic components, and the upper end of the top post of the elastic component protrudes from the upper surface of the circular upper body after passing through the upper through hole, the lower end of the top post contacts the upper end of the spring, and the lower end of the spring abuts against the bottom surface of the cylinder; in the initial state, the spring is compressed, and the rounded head of the top post abuts against the bottom surface of the base plate.

[0010] Preferably, the lower section of the second rotating component is inserted into the central through hole of the upper body; the rotating shaft is an axially hollow bolt, the upper end of which passes through the lower body and the second rotating component in sequence and is located in the second rear housing and passes through a nut located at the upper end of the rotating shaft; the bottom surface of the base plate is provided with a number of recesses evenly distributed on the same circumference, the shape of which is adapted to the round head on the top column.

[0011] Preferably, the base includes an upper base shell and a lower base shell connected to each other; the drive assembly includes a motor fixing member fixed on the lower base shell, a stepper motor mounted on the motor fixing member, a bearing fixing member mounted on the upper base shell, and a bearing connected to the bearing fixing member and located in the upper plate of the upper base shell; the bottom surface of the first rear shell is provided with a connecting column perpendicularly connected to it and inserted into the bearing, and the output shaft of the stepper motor passes perpendicularly through the bearing fixing member and is fixedly connected to the connecting column.

[0012] Preferably, the first fan assembly and the second fan assembly have the same structure; the first fan assembly includes a right bracket disposed within the first rear housing, a left bracket connected to the right bracket, a fan motor disposed within the space formed by the connection between the right bracket and the left bracket, a magnetic ring sleeved on the fan motor, and cylindrical fan blades connected at both ends to the right bracket and the left bracket respectively and sleeved on the magnetic ring; the right bracket has a transverse mounting cylinder, and a first bearing is disposed inside the front end of the mounting cylinder; the cylindrical fan blades have a transverse insertion post integrally formed therewith, and the insertion post is inserted into the first bearing; the fan motor is sleeved on the mounting cylinder and connected to the cylindrical fan blades; a retaining ring is sleeved on the insertion post to realize the axial fixed connection between the first bearing and the insertion post.

[0013] Preferably, the base also includes a motherboard electrically connected to the stepper motor, a lithium battery, a charging connector, and a button electrically connected to the motherboard; a decorative piece is provided on one end face of the upper shell of the base, and the surface of the button is exposed through a perforation in the decorative piece.

[0014] Technical Effects: The fan of this utility model has a first fan and a second fan mounted on a base, with the first and second fans arranged vertically and connected to each other. The first fan is connected to a drive assembly, which drives the first and second fans to rotate relative to the base, achieving an oscillation function. Simultaneously, the first and second fans are rotatably connected via a rotating assembly, meaning the second fan can be manually rotated relative to the first fan. With this structure, the airflow direction of the first fan differs from that of the second fan, meaning the fan can simultaneously deliver airflow to two or more users in different locations. Therefore, compared to existing technologies, the fan of this utility model can simultaneously meet the needs of two or more users and is convenient to use. Attached Figure Description

[0015] Figure 1 This is a front view of an embodiment of the present utility model;

[0016] Figure 2 This is a perspective view of an embodiment of the present utility model.

[0017] Figure 3 This is a rear-view perspective view of an embodiment of the present utility model;

[0018] Figure 4 This is an exploded view of an embodiment of the present utility model;

[0019] Figure 5 This is an exploded view of the base and drive assembly according to an embodiment of the present utility model;

[0020] Figure 6 This is an exploded view of the first fan according to an embodiment of the present utility model;

[0021] Figure 7 This is an exploded view of the second fan according to an embodiment of the present invention;

[0022] Figure 8 This is an exploded view of the rotating component according to an embodiment of the present invention;

[0023] Figure 9 This is a rear view of an embodiment of the present utility model;

[0024] Figure 10 for Figure 9 AA view;

[0025] Figure 11 for Figure 10 A magnified view of a portion of the image;

[0026] Figure 12 This is a bottom view of the second fan according to an embodiment of the present invention.

[0027] Reference numerals: Base-1, Upper base shell-101, Lower base shell-102, Rotating assembly-2, First rotating assembly-201, Upper body-201a, Center through hole-2011a, Upper through hole-2012a, Cylinder-201b, Lower body-201c, Lower through hole-2011c, Top column-201d, Spring-201e, Second rotating component-202, Rotating shaft-203, First fan-3, Connecting column-3a, First rear shell-301, Top plate-301a, First front cover-302, First fan assembly-303, Right bracket-303a, Mounting cylinder- 3031a, Left bracket - 303b, Fan motor - 303c, Magnetic ring - 303d, Cylindrical fan blade - 303e, Plug-in post - 3031e, First bearing - 303f, Snap ring - 303g, Second fan - 4, Second rear housing - 401, Base plate - 401a, Recess - 401b, Second front cover - 402, Second fan assembly - 403, Nut - 5, Drive assembly - 6, Motor fixing piece - 601, Stepper motor - 602, Bearing fixing piece - 603, Bearing - 604, Main board - 7, Lithium battery - 8, Charging connector - 9, Button - 10, Decorative piece - 11. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like Figures 1-4As shown, this embodiment of the utility model provides a portable multi-angle oscillating fan that can be used on a desktop and has an oscillation function. It includes a base 1, a drive assembly 6 disposed within the base, a first fan 3 disposed on the base and connected to the drive assembly, and rotatable relative to the base, and a second fan 4 disposed on the first fan. The first fan and the second fan are connected via a rotating assembly 2; the first fan can rotate relative to the second fan. That is, in this embodiment, the first fan and the second fan 4 are connected to form a whole, which can rotate relative to the base 1 under the drive of the drive assembly 6, thus achieving the oscillation function. Simultaneously, the first fan can also rotate relative to the second fan 4, causing the airflow angles of the two to be inconsistent, thereby meeting the needs of multiple users.

[0030] Specifically, such as Figure 5 As shown, the base 1 includes an upper base shell 101 and a lower base shell 102 connected to each other; the drive assembly 6 includes a motor fixing member 601 fixed on the lower base shell, a stepper motor 602 mounted on the motor fixing member, a bearing fixing member 603 mounted on the upper base shell, and a bearing 604 connected to the bearing fixing member and located in the upper plate of the upper base shell 101; the base 1 also includes a main board 7 electrically connected to the stepper motor 602, a lithium battery 8, a charging connector 9, and a button 10 electrically connected to the main board; a decorative piece 11 is provided on one end face of the upper base shell 101, and the surface of the button is exposed through a perforation in the decorative piece.

[0031] like Figure 4 , Figure 8 As shown, the rotating assembly 2 includes a first rotating assembly 201 disposed in the upper surface of the first fan, a second rotating component 202 disposed in the lower end of the second fan, and a rotating shaft 203 whose lower end is connected to the first rotating assembly and whose upper end is inserted into the second rotating component; when the second fan is turned, it can be rotated relative to the first fan, that is, in this embodiment, the second fan 4 is driven to rotate relative to the first fan 3 by manual means.

[0032] like Figure 6 As shown, the first fan 3 includes a first rear housing 301, a first front cover 302, and a first fan assembly 303 disposed within the first rear housing; the second fan 4 includes a second rear housing 401, a second front cover 402, and a second fan assembly 403 disposed within the second rear housing; in use, the second fan rotates at an angle between 0 and 350 degrees relative to the first fan.

[0033] Specifically, during assembly, the first rotating component 201 is fixed within the top plate 301a of the first rear housing 301, and the second rotating component 202 is fixed within the bottom plate 401a of the second rear housing 401. The rotating shaft 203 is perpendicular to both the top and bottom plates, and the second rotating component 202 can rotate relative to the rotating shaft. With this structure, when the second rear housing 401 is manually rotated, it can be rotated relative to the rotating shaft 203, thereby causing the second fan 4 to rotate relative to the first fan 3 by a certain angle.

[0034] like Figure 8 , Figure 11 As shown, the first rotating assembly 201 includes a first upper fixing member and a first lower fixing member connected thereto; the first upper fixing member includes a circular upper body 201a with a central through hole 2011a and two cylindrical bodies 201b vertically disposed on the bottom surface of the upper body; the first lower fixing member includes a circular lower body 201c with a central hole; the upper surface of the lower body is provided with two lower through holes 2011c; the lower end of the cylindrical body 201b is closed, the upper end is open, and its upper opening communicates with the upper through hole 2012a disposed in the circular upper body 201a.

[0035] like Figure 8 , Figure 11 As shown, the first rotating assembly 201 further includes two sets of elastic components; each set of elastic components includes a top post 201d with a rounded head at one end and an internal axial blind hole and a spring 201e; during assembly, the lower ends of the two cylinders 201b are respectively inserted into the two lower through holes 2011c; each cylinder is provided with a set of elastic components, and the upper end of the top post of the elastic component protrudes from the upper surface of the circular upper body after passing through the upper through hole 2012a, the lower end of the top post contacts the upper end of the spring, and the lower end of the spring abuts against the bottom surface of the cylinder; in the initial state, the spring is compressed, and the rounded head of the top post abuts against the bottom surface of the base plate 401a.

[0036] like Figure 8 , Figure 11As shown, during assembly, the lower section of the second rotating component 202 is inserted into the central through hole of the upper body 201a; in this embodiment, the rotating shaft 203 is an axially hollow bolt, the upper end of which passes through the lower body 201c and the second rotating component 202 in sequence and is located in the second rear housing 401 and passes through the nut 5 located at the upper end of the rotating shaft; the bottom surface of the base plate is provided with a number of recesses 401b evenly distributed on the same circumference, that is, the center point of all the recesses is located on the same circle; the shape of the recesses is adapted to the round head on the top column. With this structure, since the spring 201e is compressed in the initial state, the spring's restoring force presses the top post 201d and causes its round head to press against the bottom surface of the base plate 401a. At this time, the round head may engage with one of the recesses 401b or contact a part of the bottom surface of the base plate 401a other than the recess. Under these circumstances, when the second fan 4 is rotated, a certain damping resistance will inevitably be generated between the round head and the bottom surface of the base plate 401a. That is, an appropriate force needs to be applied to rotate the second fan to prevent the second fan from rotating relative to the first fan when no external force is applied. At the same time, during the rotation, the round head produces a clicking sound when engaging with the recess, so that the user can feel a good grip.

[0037] like Figure 6 As shown, in order to achieve a rotatable connection with the base 1, the bottom surface of the first rear housing 301 is provided with a connecting post 3a that is perpendicularly connected to it and inserted into the bearing 604. The output shaft of the stepper motor 602 passes vertically through the bearing fixing member 603 and is fixedly connected to the connecting post.

[0038] like Figures 6-11 As shown, specifically, the first fan assembly 303 includes a right bracket 303a disposed within the first rear housing 301, a left bracket 303b connected to the right bracket, a fan motor 303c disposed within the space formed by the connection of the right and left brackets, a magnetic ring 303d sleeved around the fan motor, and cylindrical fan blades 303e sleeved around the magnetic ring and connected at both ends to the right and left brackets respectively. The right bracket 303a has a transverse mounting cylinder 3031a, and a first bearing 303f is disposed inside the front end of the mounting cylinder. The cylindrical fan blades 303e have a transverse insertion post 3031e integrally formed therewith, and the insertion post is inserted into the first bearing. The fan motor 303c is sleeved on the mounting cylinder and connected to the cylindrical fan blades. A retaining ring 303g is sleeved on the insertion post 3031e to achieve an axial fixed connection between the first bearing and the insertion post. With this structure, after the fan motor 303c starts, it can drive the cylindrical fan blades 303e to work.

[0039] In this embodiment, the first fan assembly 303 and the second fan assembly 403 use the same components and have the same connection method, but are installed in opposite directions. Based on the detailed description of the first fan assembly 303 and the related drawings, it is sufficient for those skilled in the art to fully understand and implement it; therefore, in order to save space, the structure of the second fan assembly 403 will not be described in detail here.

[0040] In summary, the first fan 3 and the second fan 4 are arranged vertically and connected to each other. The first fan 3 is connected to the drive assembly 6, which drives the first fan 3 and the second fan 4 to rotate relative to the base 1, thus achieving the oscillation function. At the same time, the first fan 3 and the second fan 4 are rotatably connected through the rotating assembly 2, meaning that the second fan 4 can be manually rotated relative to the first fan 3. With this structure, the airflow direction of the first fan 3 is different from that of the second fan 4, meaning that the fan can simultaneously deliver airflow to two or more users in different positions. Therefore, compared with the prior art, the fan of this utility model can simultaneously meet the needs of two or more users and is convenient to use.

[0041] In the above description, it should be noted that the terms "installation", "connection", "connection" and other related terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; "set at" should be understood as "installed at" or "set at", including installation methods such as fixed installation and movable installation.

[0042] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Any equivalent structures made based on the description and drawings of this utility model, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A portable multi-angle oscillating fan, comprising a base (1), a drive assembly (6) disposed within the base; a first fan (3) disposed on the base and connected to the drive assembly and rotatable relative to the base; and a second fan (4) disposed on the first fan; characterized in that, The first fan and the second fan are connected by a rotating assembly (2); the first fan can rotate relative to the second fan.

2. The portable multi-angle oscillating fan of claim 1, wherein, The rotating assembly (2) comprises a first rotating assembly (201) arranged on the upper surface of the first fan, a second rotating member (202) arranged inside the lower end of the second fan, a rotating shaft (203) connected with the first rotating assembly at the lower end and inserted into the second rotating member at the upper end; the second fan can rotate relative to the first fan when being pushed.

3. A portable multi-angle oscillating fan as defined in claim 2, wherein, The first fan (3) comprises a first rear shell (301), a first front cover (302), and a first fan assembly (303) arranged in the first rear shell; the second fan (4) comprises a second rear shell (401), a second front cover (402), and a second fan assembly (403) arranged in the second rear shell; the angle of rotation of the second fan relative to the first fan is between 0-350 degrees.

4. A portable multi-angle oscillating fan as defined in claim 3, wherein, The first rotating assembly (201) is fixed in the top plate (301a) of the first rear shell (301), the second rotating member (202) is fixed in the bottom plate (401a) of the second rear shell (401), and the rotating shaft (203) is perpendicular to the top plate and the bottom plate, respectively, and the second rotating member (202) can rotate relative to the rotating shaft.

5. A portable multi-angle oscillating fan as defined in claim 4, wherein, The first rotating assembly (201) comprises a first upper fixing member and a first lower fixing member connected thereto; the first upper fixing member comprises a circular upper body (201a) provided with a central through hole (2011a) and two vertical cylinder bodies (201b) arranged on the bottom surface of the upper body, and the first lower fixing member comprises a circular lower body (201c) provided with a central hole; the upper surface of the lower body is provided with two lower through holes (2011c); the lower end of the cylinder body (201b) is closed, the upper end is open, and the upper end opening is communicated with the upper through hole (2012a) arranged in the circular upper body (201a).

6. A portable multi-angle oscillating fan as defined in claim 5, wherein, The first rotating assembly (201) further comprises two groups of elastic assemblies; each group of elastic assemblies comprises a top column (201d) provided with a circular head at one end and an axial blind hole inside and a spring (201e); the lower ends of the two cylinder bodies (201b) are respectively inserted into the two lower through holes (2011c); each cylinder body is provided with a group of elastic assemblies, and the upper end of the top column of the elastic assembly protrudes from the upper surface of the circular upper body (201a) after passing through the upper through hole (2012a), the lower end of the top column is in contact with the upper end of the spring, and the lower end of the spring is in contact with the bottom surface of the cylinder body; in the initial state, the spring is compressed, and the circular head of the top column is in contact with the bottom surface of the bottom plate (401a).

7. A portable multi-angle oscillating fan as defined in claim 6, wherein, The lower section of the second rotating member (202) is inserted into the central through hole of the upper body (201a); the rotating shaft (203) is an axial hollow bolt, the upper end of which passes through the lower body (201c) and the second rotating member (202) in sequence and is located in the second rear shell (401) and connected with the second rear shell by a nut (5) arranged on the upper end of the rotating shaft; the bottom surface of the bottom plate is provided with a plurality of recesses (401b) uniformly distributed on the same circumference, and the recesses are adapted to the shape of the circular head on the top column.

8. The portable multi-angle oscillating fan of claim 3, wherein, The base (1) comprises a base upper shell (101) and a base lower shell (102) connected with each other; the driving assembly (6) comprises a motor fixing member (601) fixed on the base lower shell, a stepping motor (602) arranged on the motor fixing member, a bearing fixing member (603) arranged on the base upper shell, and a bearing (604) connected with the bearing fixing member and located in an upper plate of the base upper shell (101); the bottom surface of the first rear shell body (301) is provided with a connecting column (3a) vertically connected with the first rear shell body (301) and inserted into the bearing; and the output shaft of the stepping motor is fixedly connected with the connecting column after penetrating through the bearing fixing member (603) vertically.

9. The portable multi-angle oscillating fan of claim 3, wherein, The first fan assembly (303) comprises a right support (303a) arranged in the first rear shell body (301), a left support (303b) connected with the right support, a fan motor (303c) arranged in a space formed by the right support and the left support, a magnetic ring (303d) sleeved outside the fan motor, and a cylindrical fan blade (303e) having two ends connected with the right support and the left support and sleeved outside the magnetic ring; the right support (303a) is provided with a transverse mounting cylinder (3031a) inside; the first bearing (303f) is arranged inside the front end of the mounting cylinder; the cylindrical fan blade (303e) is provided with a transverse plug-in column (3031e) integrally formed thereon; the plug-in column is inserted into the first bearing; the fan motor (303c) is sleeved on the mounting cylinder and connected with the cylindrical fan blade; and a snap ring is sleeved on the plug-in column (3031e) to achieve axial fixed connection of the first bearing and the plug-in column.

10. The portable multi-angle oscillating fan of claim 8, wherein, The base (1) is further provided with a main board (7) electrically connected with the stepping motor (602), a lithium battery (8), a charging connector (9) and a button (10) electrically connected with the main board; one end surface of the base upper shell (101) is provided with a decorative sheet (11); and the surface of the button is exposed from a through hole in the decorative sheet.

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