Large angle cooling floor fan

Abstract

A large angle cooling floor fan, including the base plate and the column connected to both sides of the base plate, fan device is installed in the column, the base plate includes movable seat and fixed seat, the column is connected to both sides of the movable seat, the movable seat is hollowly formed installation cavity, a cover plate covers installation at the port of the installation cavity, the movable seat and the fixed seat are provided with rotating device, the rotating device drives the movable seat to rotate relative to the fixed seat, thereby realizing the rotation of the fan device. The utility model discloses beneficial effects are: fan device is installed on the movable seat that can rotate through the column, and the movable seat is driven to rotate through the rotating device, realizes the large angle cooling of floor fan, expands the coverage of cooling and heat dissipation, satisfies the use demand of different scenes, improves the use experience and product practicability of user.

Description

Technical Field

[0001] This utility model relates to the technical field of floor fans, specifically a floor fan with a wide-angle cooling function. Background Technology

[0002] Floor fans, as common household appliances, primarily generate airflow through rotating blades to achieve cooling, and are widely used in homes, offices, and other places. Traditional floor fans can only oscillate left and right within a limited range, covering only a small area. In larger spaces such as living rooms and conference rooms, or when multiple people need to cool off simultaneously, the limited oscillation angle makes it difficult to distribute cool air evenly to all corners. Users then have to frequently adjust the fan position or purchase multiple fans to meet their needs, which not only increases operating costs but also occupies valuable indoor space and is inconvenient to operate. The oscillation mechanism of floor fans on the market is usually integrated inside or on top of the fan head, driven by a linkage and motor to perform localized oscillation. This results in a tight connection between the fan head and the oscillation mechanism, which, after prolonged use, is prone to wear, jamming, and even abnormal noise, reducing transmission efficiency and lifespan, failing to provide long-term stability and reliability, and affecting the user experience.

[0003] Secondly, the main function of the existing floor fan chassis is to provide stable support, and its internal space is often not effectively utilized, resulting in relatively simple functions and an inability to integrate more practical functions. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a large-angle cooling floor fan that is simple in structure, low in manufacturing cost, has a large-angle cooling oscillation fan device, increases the cooling coverage, is highly efficient in oscillation, has a stable and reliable oscillation process, effectively reduces noise and wear, and improves user experience and product safety.

[0005] The purpose of this utility model is achieved in the following way: a large-angle cooling floor fan includes a base and columns connected to both sides of the base. A fan device is installed in the columns. The base includes a movable seat and a fixed seat. The columns are connected to both sides of the movable seat. The movable seat is hollow to form an installation cavity, and a cover plate is installed at the port of the installation cavity. A rotating device is provided between the movable seat and the fixed seat. The rotating device drives the movable seat to rotate relative to the fixed seat, thereby realizing the rotation of the fan device. The rotating device includes a drive seat installed above the fixed seat. The end face of the drive seat is recessed to form an installation groove, and a rack is embedded in the installation groove. The rotating device also includes a drive gear, which is rotatably installed on the movable seat and meshes with the rack. The rotating device also includes a drive motor fixedly installed in the installation cavity. The drive motor drives the drive gear to rotate through a drive shaft, synchronously driving the movable seat to rotate relative to the fixed seat.

[0006] The mounting groove is a fan-shaped groove.

[0007] The drive seat has a central protrusion forming a rotating shaft. Correspondingly, the movable seat has a through-hole in its central part. The rotating hole is fitted onto the outside of the rotating shaft, and the movable seat rotates along the rotating shaft.

[0008] Several baffles are provided on the lower part of the movable seat, and the baffles and the lower end face of the movable seat together form a limiting groove; corresponding to the distribution of the limiting groove, a limiting plate is provided on the outer periphery of the drive seat, and the limiting plate is accommodated in the limiting groove to restrict the axial movement of the movable seat.

[0009] At least three baffles are evenly distributed around the circumference of the rotating hole.

[0010] A support structure is provided between the movable seat and the drive seat. The support structure includes a plurality of balls protruding below the movable seat and a slide rail recessed on the upper end face of the drive seat. The balls are housed in the slide rail and can roll along the slide rail.

[0011] The slide rail is a ring-shaped groove.

[0012] The drive motor is a shaded-pole geared motor.

[0013] The side wall of the movable seat is provided with a storage slot for accommodating the remote control.

[0014] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0015] 2. The fan unit is mounted on a rotatable base via a column. The rotating device drives the rotatable base to rotate, enabling the floor fan to provide cooling at a wide angle, expanding the cooling and heat dissipation coverage, meeting the needs of different scenarios, and improving the user experience and product practicality.

[0016] 3. The oscillation of the floor fan is achieved by using a gear and rack meshing transmission method, which is highly efficient, provides stable power output and precise rotation control, and meets the user's needs for different oscillation speeds.

[0017] 4. By assembling the rotating shaft of the drive seat with the rotating hole of the movable seat, the center positioning of the movable seat during rotation is ensured, effectively preventing deviation and shaking, and improving the stability and accuracy of the pedestal fan's oscillation.

[0018] 5. By incorporating ball bearings for support, sliding friction is converted into rolling friction, significantly reducing the frictional resistance of the rotating base. This makes the pedestal fan swing more smoothly and easily, effectively reducing potential noise and wear, and extending the lifespan of the pedestal fan.

[0019] 6. The cooperation between the limiting groove and the limiting plate effectively restricts the axial movement of the movable seat, improving the stability and safety of the rotating device. Attached Figure Description

[0020] Figure 1 This is a rendering of the final assembly of this utility model.

[0021] Figure 2 This is a schematic diagram of the chassis structure in this utility model.

[0022] Figure 3 This is an exploded view of the chassis structure in this utility model.

[0023] Figure 4 This is a schematic diagram of the bottom structure of the chassis in this utility model.

[0024] Figure 5 This is an exploded view of the chassis structure in this utility model.

[0025] Figure 6 This is an exploded view of the chassis structure in this utility model. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings. A large-angle cooling floor fan includes a base 3 and columns 1 connected to both sides of the base 3. A fan device 2 is installed in the columns 1. The base 3 includes a movable seat 31 and a fixed seat 32. The columns 1 are connected to both sides of the movable seat 31. The movable seat 31 is hollow to form an installation cavity 311, and a cover plate 33 is installed at the port of the installation cavity 311. A rotating device is provided between the movable seat 31 and the fixed seat 32. The rotating device drives the movable seat 31 to rotate relative to the fixed seat 32, thereby realizing the rotation of the fan device 2. The device includes a drive seat 41 mounted above the fixed seat 32, the end face of the drive seat 41 being recessed to form a mounting groove 411, and a rack 42 being fitted into the mounting groove 411; the rotating device also includes a drive gear 43, which is rotatably mounted on the movable seat 31 and meshes with the rack 42 to rotate; the rotating device also includes a drive motor 44 fixedly mounted in the mounting cavity 311, the drive motor 44 driving the drive gear 43 to rotate through a drive shaft, synchronously driving the movable seat 31 to rotate relative to the fixed seat 32.

[0027] In the structure of the floor fan, the fan unit is connected to the chassis via a column. The chassis includes a separate movable base and a fixed base, with the column mounted on both sides of the movable base. A rotating mechanism is located between the movable and fixed bases, driving the movable base to rotate relative to the fixed base, thus rotating the fan unit and achieving a wide-angle cooling effect. It should be noted that the rotating mechanism includes a drive seat mounted above the fixed base, with a recessed mounting groove on its end face. A rack is fitted into this groove and fixedly connected to the drive seat, with the rack connected to the chassis via the drive seat as its fixed end. The rotating mechanism also includes a drive gear rotatably mounted on the movable base, which meshes with the rack.

[0028] The rotating device also includes a drive motor fixedly installed in the mounting cavity inside the movable seat. The drive motor's drive seat is shaft-connected to the aforementioned drive gear. When the user needs to oscillate the fan unit, the drive motor starts, driving the drive gear to rotate via its own drive shaft. Since the rack is fixed to the chassis via the drive seat, the rotation of the drive gear, through meshing with the rack, generates a force that causes the movable seat to rotate along the fixed seat. When the movable seat rotates, the column and the fan unit mounted on it also rotate synchronously, thus achieving a large-angle cooling oscillation of the fan unit. Unlike the traditional method of directly rotating the fan unit, the rotating device is integrated into the chassis, rotating the entire column along with the fan unit, rather than just oscillating the fan head, achieving large-angle cooling and heat dissipation over a larger area. Secondly, compared to traditional linkage transmission, the meshing transmission of gears and racks has higher transmission efficiency and smaller transmission backlash, providing stable power output and precise rotation control, ensuring the synchronicity and accuracy of the movable seat's rotation.

[0029] A cover plate is installed at the mounting cavity port of the movable base, concealing the rotating mechanism within the chassis's internal structure. This avoids the cluttered appearance of traditional exposed oscillating mechanisms and enhances the overall aesthetics of the product. Furthermore, the cover plate effectively protects internal components from dust, facilitating cleaning and maintenance by the user and extending the lifespan of the floor fan.

[0030] The mounting slot 411 is a fan-shaped groove. Since the mounting slot is fan-shaped, the rack embedded within it is naturally also fan-shaped. The drive gear meshes with this fan-shaped rack, causing the movable seat to reciprocate within a preset fan-shaped area. Therefore, the curvature of the fan-shaped groove determines the swing range of the fan device. Users can set the curvature of the fan-shaped groove according to actual needs to obtain a set swing range, such as 120°, 180°, or even close to 360° for ultra-large angle cooling. This breaks through the traditional limited small-angle swing, allowing the floor fan to cover a wider cooling area, greatly improving the practicality and comfort of the floor fan, and meeting the usage needs in different scenarios.

[0031] The drive seat 41 has a centrally protruding rotating shaft 412. Correspondingly, the movable seat 31 has a through-hole 312 in its central part. The rotating hole 312 is fitted onto the outside of the rotating shaft 412, and the movable seat 31 rotates along the rotating shaft 412. The centrally protruding rotating shaft of the drive seat serves as the center of rotation, and the through-hole in the movable seat is precisely fitted onto the outside of this rotating shaft. When the drive motor drives the drive gear to rotate, the movable seat rotates smoothly along the central rotating shaft, ensuring that the movable seat will not deviate radially or wobble during rotation, thus maintaining the stability of the structure. The cooperation between the rotating shaft and the rotating hole provides a stable central support for the rotation of the movable seat, effectively preventing radial runout and wobble during rotation, ensuring the smoothness of the fan's oscillation, making the rotation path of the movable seat more precise, and reducing the wear of transmission components. Secondly, the rotating shaft and rotating hole can also serve as an assembly datum, providing a clear installation datum for the assembly of the movable seat and the drive seat, facilitating production and maintenance.

[0032] Several baffles 5 are protruding below the movable seat 31, and the baffles 5 together with the lower end face of the movable seat 31 form a limiting groove 51. Corresponding to the limiting groove 51, a limiting plate 52 extends outward from the outer periphery of the drive seat 41, and the limiting plate 52 is accommodated in the limiting groove 51 to restrict the axial movement of the movable seat 31. The baffles below the movable seat and the lower end face of the movable seat together form a limiting groove, and the limiting plate extends outward from the outer periphery of the drive seat corresponding to the position of the limiting groove. When the movable seat is fitted onto the rotating shaft through the rotating hole, the limiting plate is accommodated in the aforementioned limiting groove, effectively restricting the vertical movement of the movable seat and preventing the movable seat from detaching from the rotating shaft upward or downward due to gravity or inertia during operation, transportation, or external impact. This ensures the axial stability of the entire rotating assembly and enhances the structural stability and safety of the fan during operation and use. Secondly, the improved stability reduces axial impact and wear between components, helping to extend the service life of the rotating shaft, rotating hole, and other transmission components.

[0033] At least three baffles 5 are evenly distributed around the circumference of the rotating hole 312. The presence of at least three baffles around the circumference of the rotating hole provides multi-point support and limitation for the limiting plate, ensuring the uniform distribution of axial limiting force, preventing possible tilting or displacement of the movable seat in the axial direction, making the axial limitation more robust and reliable, and improving the overall rigidity of the connection between the movable seat and the drive seat.

[0034] A support structure 6 is provided between the movable seat 31 and the drive seat 41. The support structure 6 includes several balls 61 protruding below the movable seat 31 and a slide rail 62 recessed on the upper end face of the drive seat 41. The balls 61 are housed in the slide rail 62 and can roll along it. The support structure, which includes several balls protruding below the movable seat, accommodates these balls. A slide rail that engages with the balls is provided on the upper end face of the drive seat. When the movable seat starts to rotate, the balls are housed in the slide rail and roll along it, converting sliding friction into rolling friction. This significantly reduces the resistance during the rotation of the movable seat, making the pedestal fan's oscillation smoother and easier. Furthermore, the reduction in frictional resistance also reduces the noise of the pedestal fan's oscillation and the energy loss of the drive motor, helping to extend the overall lifespan of the pedestal fan and improve the user experience.

[0035] The slide rail 62 is an annular groove. The slide rail is designed with an annular groove, allowing the balls to roll within this groove. This ensures that the balls provide uniform support and guidance when the movable seat rotates at large angles, maintaining low friction and high stability regardless of the angle the movable seat rotates to, thus ensuring the smoothness and continuity of the movable seat's rotation.

[0036] The drive motor 44 is a shaded-pole geared motor.

[0037] The movable base 31 has a storage slot 71 on its side wall for accommodating the remote control 7. This storage slot allows the user to store the remote control when not in use, providing a dedicated storage space and preventing potential loss due to careless placement. This enhances user convenience and experience, helps maintain a clean and tidy environment, and adds value and functionality to the floor fan.

[0038] In summary: When the floor fan needs to oscillate at a large angle for cooling, the drive motor starts. This drive motor drives the drive gear to rotate via its own drive shaft. Since the drive gear is rotatably mounted on the movable base, and the drive motor is fixedly connected to the movable base, the rotation of the drive gear provides a certain rotational force to the movable base. A drive base is mounted above the fixed base, and its upper surface is recessed to form a fan-shaped mounting groove. A rack is embedded in this groove and meshes with the aforementioned drive gear. Since the rack is fixed to the fixed base via the drive base, it serves as the fixed end. When the drive gear rotates, it moves along the arc of the fan-shaped rack, thereby generating a certain pushing force on the movable base, causing it to rotate around the center of the fixed base. Simultaneously, this rotates the column equipped with the fan, achieving a much wider cooling angle coverage than traditional fans.

[0039] To ensure the stability and accuracy of rotation, the drive seat has a central protrusion forming a rotating shaft, while the movable seat has a through-hole in the center. This rotating hole fits onto the outside of the rotating shaft, allowing the movable seat to rotate smoothly along the rotating shaft.

[0040] To further reduce rotational friction and improve stability, a support structure is provided between the movable seat and the drive seat. This support structure includes several balls protruding from the bottom of the movable seat and an annular groove recessed on the upper end face of the drive seat as a slide rail. The balls are housed in the annular slide rail and can roll along the slide rail, converting the sliding friction of the movable seat during rotation into rolling friction, which greatly reduces resistance, noise and wear.

[0041] Furthermore, to prevent the movable seat from axially shifting or detaching, several baffles are protruding below the movable seat, forming a limiting groove together with the lower end face of the movable seat. Correspondingly, a limiting plate extends out from the outer periphery of the drive seat, and the limiting plate is housed in the limiting groove, thereby effectively restricting the axial movement of the movable seat. To ensure uniform and stable axial limiting, at least three baffles are evenly distributed around the circumference of the rotating hole, providing multi-point support and limiting for the limiting plate.

[0042] To further enrich the functionality of the floor fan, a storage slot for the remote control is provided on the side wall of the movable base, making it convenient for users to access and store the remote control at any time. This enhances the product's convenience and user-friendly design, and therefore it can be widely promoted and used.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A floor fan with a wide angle for cooling, comprising a base (3) and columns (1) connected to both sides of the base (3), wherein a fan device (2) is installed in the columns (1), characterized in that: The chassis (3) includes a movable seat (31) and a fixed seat (32), and the column (1) is connected to both sides of the movable seat (31); the movable seat (31) is hollow to form an installation cavity (311), and a cover plate (33) is installed at the port of the installation cavity (311); A rotating device is provided between the movable seat (31) and the fixed seat (32). The rotating device drives the movable seat (31) to rotate relative to the fixed seat (32), thereby realizing the rotation of the fan device (2). The rotating device includes a drive seat (41) mounted above the fixed seat (32), the end face of the drive seat (41) being recessed to form a mounting groove (411), and a rack (42) being fitted into the mounting groove (411); the rotating device also includes a drive gear (43), the drive gear (43) being rotatably mounted on the movable seat (31) and meshing with the rack (42) to rotate; The rotating device also includes a drive motor (44) fixedly installed in the mounting cavity (311). The drive motor (44) drives the drive gear (43) to rotate through the drive shaft, and synchronously drives the movable seat (31) to rotate relative to the fixed seat (32).

2. The wide-angle cooling floor fan according to claim 1, characterized in that: The mounting groove (411) is a fan-shaped groove.

3. A floor fan with a wide angle for cooling as described in claim 1, characterized in that: The drive seat (41) has a central protrusion forming a rotating shaft (412). Correspondingly, the movable seat (31) has a through-hole (312) in the center. The rotating hole (312) is fitted onto the outside of the rotating shaft (412), and the movable seat (31) rotates along the rotating shaft (412).

4. A floor fan with a wide angle for cooling as described in claim 3, characterized in that: Several baffles (5) are protruding below the movable seat (31). The baffles (5) and the lower end face of the movable seat (31) together form a limiting groove (51). Corresponding to the distribution of the limiting groove (51), a limiting plate (52) extends out from the outer periphery of the drive seat (41). The limiting plate (52) is accommodated in the limiting groove (51) to restrict the axial movement of the movable seat (31).

5. A floor fan with a wide angle for cooling as described in claim 4, characterized in that: At least three baffles (5) are evenly distributed around the circumference of the rotating hole (312).

6. A floor fan with a wide angle for cooling as described in claim 1, characterized in that: A support structure (6) is provided between the movable seat (31) and the drive seat (41). The support structure (6) includes a plurality of balls (61) protruding below the movable seat (31) and a slide rail (62) recessed on the upper end face of the drive seat (41). The balls (61) are housed in the slide rail (62) and can roll along the slide rail (62).

7. A floor fan with a wide angle for cooling as described in claim 6, characterized in that: The slide rail (62) is a ring-shaped groove.

8. A floor fan with a wide angle for cooling as described in claim 1, characterized in that: The drive motor (44) is a shaded-pole geared motor.

9. A floor fan with a wide angle for cooling as described in claim 1, characterized in that: The side wall of the movable seat (31) is provided with a storage slot (71) for accommodating the remote control (7).

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