A head-shaking fan

Abstract

The utility model discloses a kind of head shaking fans, it includes pedestal, fan head and head shaking driving device. Fan head is rotatably arranged in pedestal, fan head is provided with fan blade, main motor and main battery, fan head is also provided with main power take-off interface, and main power take-off interface is used to connect main electric wire. Head shaking driving device is arranged in pedestal. Fan head is provided with main electric wire detection structure, head shaking driving device is provided with head shaking control circuit board, head shaking control circuit board is provided with controller and is used to control head shaking driving device, controller is configured as: when main electric wire detection structure detects that main power take-off interface is connected with main electric wire, control head shaking driving device drives fan head to rotate in first rotation angle range;When main electric wire detection structure detects that main power take-off interface is not connected with main electric wire, control head shaking driving device drives fan head to rotate in second rotation angle range;First rotation angle range is less than second rotation angle range. The above-mentioned head shaking fan can effectively guarantee the air supply effect under different conditions.

Description

Technical Field

[0001] This utility model relates to electrical appliances, and in particular to an oscillating fan. Background Technology

[0002] Existing fans typically have an oscillation function to deliver air over a wide area. However, for some fans that require a charging cable, the oscillation angle is locked within a small range because the oscillation interferes with the cable, thus affecting the air delivery effect. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an oscillating fan that can oscillate within a relatively small angle range when the main power cord is connected, and oscillate within a relatively large angle range after the main power cord is disconnected, thereby effectively ensuring the airflow effect under different conditions.

[0004] An oscillating fan according to an embodiment of the present invention includes: a base; a fan head rotatably disposed on the base, the fan head being provided with fan blades, a main motor, and a main battery, the main motor driving the fan blades to rotate, the main battery supplying power to the main motor, the fan head also being provided with a main power input interface for connecting a main power cable for charging the main battery; and an oscillation drive device disposed on the base, the oscillation drive device driving the fan head to rotate to change the direction of airflow; wherein, the fan head is provided with a main power cable detection structure, the oscillation drive device is provided with an oscillation control circuit board, and the main power cable detection structure is used to detect... The system detects whether the main power input interface is connected to the main power cable. The main power cable detection structure is electrically connected to the oscillation control circuit board. The oscillation control circuit board is equipped with a controller for controlling the oscillation drive device. The controller is configured to: when the main power cable detection structure detects that the main power input interface is connected to the main power cable, control the oscillation drive device to drive the fan head to rotate within a first rotation angle range; when the main power cable detection structure detects that the main power input interface is not connected to the main power cable, control the oscillation drive device to drive the fan head to rotate within a second rotation angle range; the first rotation angle range is smaller than the second rotation angle range.

[0005] An oscillating fan according to an embodiment of the present invention has at least the following beneficial effects: The fan detects whether a main power line is connected by a main power line detection structure, and controls the oscillating drive device via an oscillating control circuit board to drive the fan head to rotate. When the main power line is inserted into the main power input interface, the oscillating control circuit board controls the oscillating drive device to drive the fan head to oscillate within a relatively small first rotation angle range, thereby avoiding excessive oscillation angles that could interfere with the main power line. When the main power line is not connected to the main power input interface, the oscillating control circuit board controls the oscillating drive device to oscillate within a relatively large second rotation angle range, thereby ensuring a wider airflow range. Through the main power line detection structure and the oscillating control circuit board, the fan can determine the oscillation range based on whether the main power line is connected, thus effectively ensuring the airflow effect under different conditions.

[0006] According to some embodiments of the present invention, the first rotation angle range is 180 degrees, and the second rotation angle range is 360 degrees.

[0007] According to some embodiments of this utility model, the fan head is provided with a main motor control circuit board, the main motor control circuit board is provided with a charging circuit and a motor control circuit, the main motor and the main battery are electrically connected to the main motor control circuit board, and the main wire detection structure is a charging current detector provided on the main motor control circuit board, the charging current detector is used to detect whether there is charging current in the charging circuit.

[0008] According to some embodiments of the present invention, the main power line detection structure is a position sensor, the position sensor is provided with a detection end, and the detection end is located at a position that can cooperate with the end of the main power line connected to the main power input interface.

[0009] According to some embodiments of the present invention, the main power input interface is located on the end face of the fan head away from the air outlet side of the fan blades.

[0010] According to some embodiments of the present invention, the oscillating drive device includes an oscillating motor, a driving gear, and a driven gear. The oscillating motor is electrically connected to the oscillating control circuit board. The fan head is fixed with a rotating main shaft, which is pivotally connected to the base. The driven gear is fixed to the rotating main shaft. The oscillating motor is disposed on the base, and the driven gear is fixed to the motor shaft of the oscillating motor. The driven gear meshes with the driving gear.

[0011] According to some embodiments of the present invention, the oscillation control circuit board is provided with a secondary power supply interface, which is used to connect a secondary power supply wire to the oscillation drive device.

[0012] According to some embodiments of the present invention, the fan head includes a fan head body and a connecting frame. The main motor, the main battery, the main power input interface, the fan blades, and the main power cable detection structure are disposed on the fan head body. The fan head body is pivotally connected to the connecting frame and can adjust its angle relative to the connecting frame. The connecting frame is pivotally connected to the base. The oscillation drive device is used to drive the connecting frame to rotate.

[0013] According to some embodiments of the present invention, the pivot axis between the connecting frame and the base is arranged vertically, and the pivot axis between the fan head body and the connecting frame is inclined relative to the vertical direction.

[0014] According to some embodiments of this utility model, the connecting frame is a U-shaped frame, and the fan head body can be rotated 180 degrees from the unclosed side of the U-shaped frame.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is an exploded view of an embodiment of the present invention; Figure 3 for Figure 2 Enlarged diagram of point A.

[0017] Figure label: Base 100; Fan head 200, fan blades 210, main motor 220, main battery 230, main power input interface 240, main motor control circuit board 250, fan head body 201, connecting frame 202; Oscillating drive device 300, oscillation control circuit board 310, oscillation motor 320, drive gear 330, driven gear 340, auxiliary power input interface 311. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figures 1 to 3 An oscillating fan includes a base 100, a fan head 200, and an oscillation drive device 300. The fan head 200 is rotatably mounted on the base 100 and includes fan blades 210, a main motor 220, and a main battery 230. The main motor 220 drives the fan blades 210 to rotate, and the main battery 230 supplies power to the main motor 220. The fan head 200 also includes a main power input interface 240 for connecting a main power cable (not shown) to charge the main battery 230. The oscillation drive device 300 is mounted on the base 100 and drives the fan head 200 to rotate, thereby changing the direction of the airflow. The fan head 200 is equipped with a main power cable detection structure, and the oscillation drive device 300 is equipped with an oscillation control circuit board 310. The main power cable detection structure is used to detect whether the main power input interface 240 is connected to a main power cable. The main power cable detection structure is electrically connected to the oscillation control circuit board 310. The oscillation control circuit board 310 is equipped with a controller for controlling the oscillation drive device 300. The controller is configured to: when the main power cable detection structure detects that the main power input interface 240 is connected to a main power cable, control the oscillation drive device 300 to drive the fan head 200 to rotate within a first rotation angle range; when the main power cable detection structure detects that the main power input interface 240 is not connected to a main power cable, control the oscillation drive device 300 to drive the fan head 200 to rotate within a second rotation angle range; the first rotation angle range is smaller than the second rotation angle range.

[0023] The aforementioned fan uses a main power cable detection structure to detect whether a main power cable is connected. The oscillation control circuit board 310 controls the oscillation drive device 300 to drive the fan head 200 to rotate. When the main power cable is inserted into the main power input interface 240, the oscillation control circuit board 310 controls the oscillation drive device 300 to drive the fan head 200 to oscillate within a relatively small first rotation angle range, thus preventing the fan head 200 from oscillating at an excessively large angle and interfering with the main power cable. When the main power cable is not connected to the main power input interface 240, the oscillation control circuit board 310 controls the oscillation drive device 300 to oscillate within a relatively large second rotation angle range, thus ensuring a wider airflow range. Through the main power cable detection structure and the oscillation control circuit board 310, the fan can determine the oscillation range based on whether the main power cable is connected, effectively ensuring the airflow effect under different conditions.

[0024] In this embodiment, the first rotation angle range is 180 degrees, and the second rotation angle range is 360 degrees. Setting the first rotation angle range to 180 degrees allows for a wider airflow to the user when a main power cord is connected; while when no main power cord is connected, the absence of interference from the charging cable allows the fan head 200 to provide 360-degree airflow without dead zones. It is conceivable that in other embodiments, the first and second rotation angle ranges are not limited to the above-described embodiments, and those skilled in the art can configure them reasonably according to actual circumstances.

[0025] In this embodiment, the fan head 200 is equipped with a main motor control circuit board 250, which includes a charging circuit and a motor control circuit. The main motor 220 and the main battery 230 are electrically connected to the main motor control circuit board 250. The main power supply detection structure is a charging current detector mounted on the main motor control circuit board 250, which detects whether there is charging current in the charging circuit. When the main power input interface 240 is connected to the main power supply, a charging current is generated. The presence of the charging current can be detected by the charging current detector, thereby indirectly determining whether a main power supply is connected. In this embodiment, the main power input interface 240 can be mounted on the main motor control circuit board 250.

[0026] In this embodiment, the charging circuit and the motor control circuit can be implemented using existing conventional circuits, which will not be described in detail here.

[0027] In one embodiment, the charging current detector can be an optocoupler connected to the charging circuit. When a charging current passes through the optocoupler, the optocoupler can output a changing electrical signal, which is then used to notify the controller of the head-shaking control circuit board 310 to control the head-shaking angle range. Of course, in other embodiments, the charging current detector can also be other structures, such as a gate circuit directly connected to the charging circuit. The gate circuit can be composed of transistors and necessary auxiliary components. When there is a charging current, the high-level signal output from the gate circuit is used as a control signal to notify the controller of the head-shaking control circuit board 310. It is understood that there are many implementations of a detection structure for determining whether a circuit has current in it, and those skilled in the art can configure it according to the actual situation.

[0028] In some embodiments, the main power line detection structure is a position sensor, which has a detection end positioned to engage with the end of the main power line connected to the main power input interface 240. This structure directly detects the position of the main power line using a position sensor, making it simple, straightforward, and easy to implement.

[0029] In one embodiment, the position sensor can be, for example, an optical fiber connector positioned around the periphery of the main power input interface 240. When the main power cable is connected to the main power input interface 240, the end of the main power cable blocks the optical fiber connector, causing a change in the optical fiber connector's electrical signal. This change in electrical signal is then used to notify the controller of the head-up control circuit board 310. Alternatively, the position sensor can also be a limit switch, positioned at a location that would be touched when the main power cable is connected to the main power input interface 240, thus also enabling the detection of whether a main power cable is connected.

[0030] In this embodiment, the controller on the oscillation control circuit board 310 can be a microcontroller, other industrial control controllers, or control circuits. After receiving the electrical signal from the main power line detection structure, the controller on the oscillation control circuit board 310 makes a judgment and then controls the oscillation drive device 300 to move in different ways by outputting different control signals. For structures driven by a motor, the controller can output motor drive waveforms of different durations to control the motor's action time, thereby controlling the rotation angle range of the driven fan head 200.

[0031] In this embodiment, the main power input interface 240 is located on the end face of the fan head 200 along the air outlet side away from the fan blades 210. With the above structure, when the main power input interface 240 is connected to the main power cable, the rotation and oscillation of the fan head 200 can be minimized.

[0032] In this embodiment, the oscillation drive device 300 includes an oscillation motor 320, a drive gear 330, and a driven gear 340. The oscillation motor 320 is electrically connected to the oscillation control circuit board 310. The fan head 200 is fixed with a rotating main shaft, which is pivotally connected to the base 100. The driven gear 340 is fixed to the rotating main shaft. The oscillation motor 320 is mounted on the base 100, and the driven gear 340 is fixed to the motor shaft of the oscillation motor 320. The driven gear 340 meshes with the drive gear 330. The oscillation drive device 300 adopts the above-described structure and uses a gear linkage method, which is simple in structure and stable in linkage. It is conceivable that the oscillation drive device 300 is not limited to the above-described structure. For example, the oscillation drive device 300 may use a motor and a crank-rocker mechanism, with the output shaft of the motor linked to the fan head 200 through the crank-rocker mechanism.

[0033] In one embodiment, the oscillation control circuit board 310 is provided with a secondary power input interface 311, which is used to connect a secondary power cable (not shown in the figure) to supply power to the oscillation drive device 300. In another embodiment, a secondary battery can also be provided to supply power to the oscillation drive device 300, and the secondary power input interface 311 and the secondary battery are electrically connected for charging, so that the oscillation drive device 300 can also work offline.

[0034] In this embodiment, the fan head 200 includes a fan head body 201 and a connecting frame 202. A main motor 220, a main battery 230, a main power input interface 240, fan blades 210, and a main power cable detection structure are disposed on the fan head body 201. The fan head body 201 is pivotally connected to the connecting frame 202 and can adjust its angle relative to the connecting frame 202. The connecting frame 202 is pivotally connected to the base 100. A oscillation drive device 300 is used to drive the connecting frame 202 to rotate. With the above structure, the fan head body 201 can rotate relative to the connecting frame 202 to adjust its position, facilitating adjustment and use.

[0035] In this embodiment, the pivot axis between the connecting frame 202 and the base 100 is vertically aligned, while the pivot axis between the fan head body 201 and the connecting frame 202 is inclined relative to the vertical direction. By employing this structure and staggering the axes, the adjustment range of the blowing air can be enriched.

[0036] In this embodiment, the connecting frame 202 is a U-shaped frame, and the fan head body 201 can be rotated 180 degrees from the unclosed side of the U-shaped frame, thereby facilitating the adjustment of forward and reverse airflow.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An oscillating fan, characterized in that, include: Base (100); A fan head (200) is rotatably mounted on the base (100). The fan head (200) is provided with fan blades (210), a main motor (220), and a main battery (230). The main motor (220) is used to drive the fan blades (210) to rotate, and the main battery (230) is used to supply power to the main motor (220). The fan head (200) is also provided with a main power input interface (240), which is used to connect to the main power cable that charges the main battery (230). A oscillating drive device (300) is disposed on the base (100). The oscillating drive device (300) is used to drive the fan head (200) to rotate to change the direction of airflow. The fan head (200) is provided with a main power line detection structure, and the oscillation drive device (300) is provided with an oscillation control circuit board (310). The main power line detection structure is used to detect whether the main power input interface (240) is plugged in with the main power line. The main power line detection structure is electrically connected to the oscillation control circuit board (310). The oscillation control circuit board (310) is provided with a controller and is used to control the oscillation drive device (300). The controller is configured to: when the main power line detection structure detects that the main power input interface (240) is connected with the main power line, control the oscillation drive device (300) to drive the fan head (200) to rotate within a first rotation angle range. When the main power supply detection structure detects that the main power interface (240) is not connected to the main power supply, it controls the oscillating drive device (300) to drive the fan head (200) to rotate within a second rotation angle range; the first rotation angle range is smaller than the second rotation angle range.

2. The oscillating fan according to claim 1, characterized in that: The first rotation angle range is 180 degrees, and the second rotation angle range is 360 degrees.

3. The oscillating fan according to claim 1, characterized in that: The fan head (200) is provided with a main motor control circuit board (250), which is provided with a charging circuit and a motor control circuit. The main motor (220) and the main battery (230) are electrically connected to the main motor control circuit board (250). The main wire detection structure is a charging current detector set on the main motor control circuit board (250), which is used to detect whether there is charging current in the charging circuit.

4. The oscillating fan according to claim 1, characterized in that: The main power line detection structure is a position sensor, which is provided with a detection end. The detection end is located at a position that can cooperate with the end of the main power line connected to the main power input interface (240).

5. The oscillating fan according to claim 1, characterized in that: The main power input interface (240) is located on the end face of the fan head (200) on the air outlet side away from the fan blades (210).

6. The oscillating fan according to claim 1, characterized in that: The oscillating drive device (300) includes an oscillating motor (320), a drive gear (330), and a driven gear (340). The oscillating motor (320) is electrically connected to the oscillating control circuit board (310). The fan head (200) is fixed with a rotating main shaft, which is pivotally connected to the base (100). The driven gear (340) is fixed to the rotating main shaft. The oscillating motor (320) is disposed on the base (100). The driven gear (340) is fixed to the motor shaft of the oscillating motor (320). The driven gear (340) and the drive gear (330) mesh.

7. The oscillating fan according to claim 1, characterized in that: The oscillation control circuit board (310) is provided with a secondary power supply interface (311), which is used to connect a secondary power cable to supply power to the oscillation drive device (300).

8. The oscillating fan according to claim 1, characterized in that: The fan head (200) includes a fan head body (201) and a connecting frame (202). The main motor (220), the main battery (230), the main power input interface (240), the fan blades (210), and the main power cable detection structure are disposed on the fan head body (201). The fan head body (201) is pivotally connected to the connecting frame (202) and can adjust its angle relative to the connecting frame (202). The connecting frame (202) is pivotally connected to the base (100). The oscillation drive device (300) is used to drive the connecting frame (202) to rotate.

9. The oscillating fan according to claim 8, characterized in that: The pivot axis between the connecting frame (202) and the base (100) is arranged vertically, and the pivot axis between the fan head body (201) and the connecting frame (202) is inclined relative to the vertical direction.

10. The oscillating fan according to claim 9, characterized in that: The connecting frame (202) is a U-shaped frame, and the fan head body (201) can be rotated 180 degrees from the unclosed side of the U-shaped frame.

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