Electric fan

Abstract

An electric fan comprises a fan body, and a controller and a main control board which are electrically connected with each other are arranged on the fan body. A key assembly electrically connected with the main control board is arranged on the controller; the key assembly comprises a switching key for regulating and controlling the real-time rotating speed, the real-time power and the real-time gear through long-press circulating switching, a lifting key for executing a numerical value lifting instruction and a lowering key for executing a numerical value lowering instruction; and the switching key, the lifting key and the lowering key are electrically connected with the main control board respectively. The switching key is an independent function key; or, the switching key is combined with other keys, and the switching key is triggered by long pressing. According to the electric fan, the real-time rotating speed, the real-time power, the real-time gears and the like can be circularly switched, so that the operation of the controller is more convenient, the display screen on the controller can display various parameters such as the real-time power, the real-time rotating speed, the real-time gears, the real-time temperature and numerical values, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric fans, in particular to an electric fan. Background Art

[0002] Chinese patent document CN110043495B, published on January 30, 2024, discloses an industrial or commercial DC variable-frequency fan comprising a fan head housing, a DC variable-frequency motor, an oscillating synchronous motor, a controller, and a drive board, each of which is disposed within the inner cavity of the fan head housing. The inner cavity of the fan head housing is provided with a first bracket for assembling the oscillating synchronous motor and a second bracket for assembling the drive board. The first bracket and / or the second bracket are fixedly connected to the DC variable-frequency motor, the first bracket and the second bracket are interconnected, and the first bracket and / or the second bracket are fixedly connected to the fan head housing via a first fastening unit, with the first fastening unit at least partially exposed from the fan head housing. The controller is fixed to the fan head housing. The DC variable-frequency motor, the oscillating synchronous motor, and the controller are each electrically connected to the drive board. The controller of this industrial or commercial DC variable-frequency fan is inconvenient to operate. For example, the speed information and power information on the display can only be switched by pressing and holding the oscillating synchronous button for 2 seconds. In addition, the controller display can only display speed and power, making it generally not practical.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of the utility model is to provide an electric fan with simple structure, convenient operation, powerful functions, good user experience and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] An electric fan designed for this purpose includes a fan body, on which is provided a controller and a main control board electrically connected to each other; the controller is provided with a button assembly electrically connected to the main control board; the button assembly includes a switch button for long-pressing and cyclically switching and adjusting the real-time speed, real-time power and real-time gear, an increase button for executing a numerical increase instruction and a decrease button for executing a numerical decrease instruction; the switch button, the increase button and the decrease button are respectively electrically connected to the main control board.

[0006] The switch button is an independent function button; or, the switch button is combined with other buttons, and long pressing the switch button triggers the switch button.

[0007] The controller is provided with a display screen electrically connected to the main control board, and the display screen is provided with one or more display areas including a power display area for displaying real-time power, a speed display area for displaying real-time speed, a gear display area for displaying real-time gear, and a numerical display area for displaying control values.

[0008] The button assembly also includes a switch button for executing power on and off commands, a smart wind button for controlling whether to enter the smart wind mode, and a shaking head button for controlling whether to shake the head; the switch button, smart wind button and shaking head button are electrically connected to the main control board respectively.

[0009] The controller is provided with a receiver for receiving external wireless signals, and the receiver is wirelessly connected to the remote control terminal to realize wireless remote control.

[0010] The fan body is equipped with a main control module, a fan motor for driving the fan blades to rotate, and a temperature sensor for sensing the external ambient temperature. The temperature sensor and the fan motor are electrically connected to the main control module respectively; the temperature sensor feeds back the sensed ambient temperature to the main control module, and the main control module adjusts the speed of the fan motor according to the sensed ambient temperature.

[0011] The fan body is provided with a power supply module, which is electrically connected to the main control module and a power supply terminal for supplying electric energy.

[0012] A first motor control module for controlling the fan motor is provided on the main control board. The main control module is electrically connected to the power module, the first motor control module and the button assembly respectively. The first motor control module is electrically connected to the fan motor and the power module respectively.

[0013] The fan body is provided with an oscillating motor for controlling the blowing direction, and the main control board is provided with a second motor control module, which is electrically connected to the power module and the oscillating motor respectively.

[0014] The main control board is provided with a first detection module for monitoring the operating status of the fan motor and a second detection module for monitoring the operating status of the oscillating motor. The first detection module and the second detection module are electrically connected to the main control module respectively.

[0015] The controller is provided with a display screen electrically connected to the main control board. The main control board is provided with a display module for processing display data. The display module is electrically connected to the display screen.

[0016] The electric fan of the present invention can switch the real-time speed, real-time power and real-time gear by long pressing any button on the controller, and the switching is cyclic, which makes the operation of the controller more convenient. The display screen on the controller can display multiple parameters such as real-time power, real-time speed, real-time gear, real-time temperature and numerical values, and is highly practical. In addition, the sensed ambient temperature is fed back to the main control board through the temperature sensor, and the main control board adjusts the speed of the fan motor according to the sensed ambient temperature, thereby realizing the control of the air volume and improving the comfort of using the electric fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a controller for a commercial electric fan in one embodiment of the present invention.

[0018] Figure 2 Schematic diagram of a controller for an industrial electric fan in one embodiment of the present invention.

[0019] Figure 3 This is a circuit diagram of an electric fan in one embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the overall structure of the main control board in one embodiment of the present utility model. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figures 1-4 The electric fan can be a commercial electric fan or an industrial electric fan, which includes a fan body, on which a controller 1 and a main control board 9 electrically connected to each other are provided; the controller 1 is provided with a button assembly electrically connected to the main control board 9; the button assembly includes a switch button for long pressing and cyclically switching the real-time speed, real-time power and real-time gear, an increase button 15 for executing a value increase instruction and a decrease button 16 for executing a value decrease instruction; in the power-on state, long pressing the switch button (time 1s-2s, preferably 1.5s) can cycle through the control of the real-time speed, real-time power and real-time gear in turn, and the display screen 3 The corresponding switching displays real-time speed, real-time power and real-time gear; the increase button 15 and the decrease button 16 of this embodiment also have the function of canceling the smart wind mode; when the power is turned on, the wind speed increases by 50 revolutions each time the increase button 15 is pressed, and the maximum gear is 1400 revolutions. If you hold it down, the wind speed will increase continuously, and the buzzer will sound every time it increases by 50 revolutions; when the power is turned on, the wind speed decreases by 50 revolutions each time the decrease button 16 is pressed, and the minimum gear is 200 revolutions. If you hold it down, the wind speed will decrease continuously, and the buzzer will sound every time it decreases by 50 revolutions; when the fan is in smart wind mode, press the increase button 15 or the decrease button 16 to cancel the smart wind mode.

[0023] In this embodiment, the switch button is an independent function button 2, that is, a separate function button 2 is provided on the controller 1. When the function button 2 is long-pressed for a set time, the real-time speed, real-time power, and real-time gear are cyclically switched. In addition, the switch button can also be combined with other buttons, and long-pressing the switch button triggers the switch button; for example, when the switch button is combined with the oscillating button 14 (such as the power button 12, the smart wind button 13, the oscillating button 14, the raising button 15, or the lowering button 16), the user can long-press the oscillating button 14 for a set time when the power is on to cyclically switch the real-time speed, real-time power, and real-time gear.

[0024] The controller 1 is provided with a display screen 3 electrically connected to the main control board 9, and the display screen 3 is provided with a power display area for displaying real-time power, a speed display area for displaying real-time speed, a gear display area for displaying real-time gear and a numerical display area for displaying the control value; the power display area, speed display area, gear display area and numerical display area in this embodiment are integrated into one display area; in addition, more than one of the above-mentioned display areas can be set, and more than one display area can be arbitrarily combined.

[0025] The button assembly also includes a switch button 12 for executing the power on / off command, a smart wind button 13 for controlling whether to enter the smart wind mode, and a shaking head button 14 for controlling whether to shake the head; the switch button 12, the smart wind button 13 and the shaking head button 14 are electrically connected to the main control board 9 respectively. When the power is turned off, press the switch button 12 to turn it on; when the power is turned on, press the switch button 12 to turn it off; press the smart wind button 13 to enter the smart wind mode, and press the smart wind button 13 again to exit the smart wind mode. When entering the smart wind mode, when the ambient temperature is less than or equal to 20 degrees, the fan motor 10 rotates at 200 rpm, and the fan motor 10 rotates at 100 rpm for every 1 degree increase; when the ambient temperature is greater than or equal to 32 degrees, the fan motor 10 rotates at 1400 rpm, and the fan motor 10 rotates at 100 rpm for every 1 degree decrease; when entering the smart wind mode, the gear display area 6 displays the corresponding wind speed gear according to different temperatures; when the power is turned on, press the shaking button 14 when the swing is turned off to turn on the swing, and press the shaking button 14 when the swing is turned on to turn off the swing. As long as the angle and number of the replaced blades are below the set standard without exceeding the load standard of the fan motor 10, the electric fan can maintain a constant speed.

[0026] The controller 1 is provided with a receiver 17 for receiving external wireless signals. The receiver 17 is wirelessly connected to a remote control terminal 18 to realize wireless remote control. The remote control terminal 18 in this embodiment is a matching remote control or a smart phone loaded with corresponding APP software.

[0027] The fan body is provided with a main control module 20, a fan motor 10 for driving the fan blades to rotate, and a temperature sensor 11 for sensing the external ambient temperature. The temperature sensor 11 and the fan motor 10 are electrically connected to the main control module 20 respectively. The temperature sensor 11 feeds back the sensed ambient temperature to the main control module 20, and the main control module 20 adjusts the speed of the fan motor 10 according to the sensed ambient temperature; in the intelligent wind mode, the main control board 9 can adjust the speed of the fan motor 10 accordingly according to the changes in the external temperature, so as to blow air with appropriate temperature to the user.

[0028] The fan body is provided with a power supply module 22 , which is electrically connected to the main control module 20 and a power supply terminal for supplying high voltage alternating current (220V).

[0029] The main control board 9 is provided with a first motor control module 21 for controlling the fan motor 10. The main control module 20 is electrically connected to the power module 22, the first motor control module 21, and the key assembly. The first motor control module 21 is electrically connected to the fan motor 10 and the power module 22. The main control module 20 is a microcontroller, and the first motor control module 21 is used to control the operating state of the fan motor 10.

[0030] The fan body is equipped with an oscillating motor 23 for controlling the blowing direction. The main control board 9 is equipped with a second motor control module 24. The second motor control module 24 is electrically connected to the power module 22 and the oscillating motor 23. The oscillating motor 23 is electrically connected to an external 220V AC power supply. When the oscillating motor 23 is in operation, it causes the fan head to oscillate. The second motor control module 24 is used to control the operating state of the oscillating motor 23.

[0031] The main control board 9 is provided with a display module 25 for processing display data, and the display module 25 is electrically connected to the display screen 3 .

[0032] A first detection module 19 and a second detection module 26 are provided on the main control board 9. The first detection module 19 and the second detection module 26 are electrically connected to the main control module 20 respectively. The first detection module 19 is used to monitor the operating status of the fan motor 10, and the second detection module 26 is used to monitor the operating status of the shaking motor 23.

[0033] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric fan comprising a fan body, wherein the fan body is provided with a controller (1) and a main control board (9) electrically connected to each other; characterized in that: The controller (1) is provided with a button assembly electrically connected to the main control board (9); the button assembly includes a switch button for long-pressing and cyclically switching and regulating the real-time speed, real-time power and real-time gear position, an increase button (15) for executing a numerical value increase instruction, and a decrease button (16) for executing a numerical value decrease instruction; the switch button, the increase button (15) and the decrease button (16) are respectively electrically connected to the main control board (9).

2. The electric fan according to claim 1, wherein: The switch button is an independent function button (2); or, the switch button is combined with other buttons, and a long press triggers the switch button.

3. The electric fan according to claim 1, wherein: The controller (1) is provided with a display screen (3) electrically connected to the main control board (9), and the display screen (3) is provided with one or more display areas selected from the group consisting of a power display area for displaying real-time power, a speed display area for displaying real-time speed, a gear display area for displaying real-time gear, and a numerical display area for displaying a control value.

4. The electric fan according to claim 1, wherein: The button assembly further includes a switch button (12) for executing a power on / off command, a smart wind button (13) for controlling whether to enter the smart wind mode, and a shaking head button (14) for controlling whether to shake the head; the switch button (12), the smart wind button (13), and the shaking head button (14) are electrically connected to the main control board (9) respectively.

5. The electric fan according to claim 1, wherein: The controller (1) is provided with a receiver (17) for receiving external wireless signals, and the receiver (17) is wirelessly connected to the remote control terminal (18) to realize wireless remote control.

6. The electric fan according to claim 1, wherein: A main control module (20), a fan motor (10) for driving the fan blades to rotate, and a temperature sensor (11) for sensing the external ambient temperature are provided on the fan body. The temperature sensor (11) and the fan motor (10) are electrically connected to the main control module (20), respectively. The temperature sensor (11) feeds back the sensed ambient temperature to the main control module (20), and the main control module (20) adjusts the rotation speed of the fan motor (10) according to the sensed ambient temperature.

7. The electric fan according to claim 5, characterized in that: A power supply module (22) is provided on the fan body, and the power supply module (22) is electrically connected to the main control module (20) and a power supply terminal for supplying electric energy.

8. The electric fan according to claim 6, characterized in that: A first motor control module (21) for controlling the fan motor (10) is provided on the main control board (9); the main control module (20) is electrically connected to the power module (22), the first motor control module (21) and the key assembly; and the first motor control module (21) is electrically connected to the fan motor (10) and the power module (22).

9. The electric fan according to claim 5, characterized in that: The fan body is provided with an oscillating motor (23) for controlling the blowing direction, and the main control board (9) is provided with a second motor control module (24). The second motor control module (24) is electrically connected to the power module (22) and the oscillating motor (23), respectively.

10. The electric fan according to claim 8, characterized in that: The main control board (9) is provided with a first detection module (19) for monitoring the operating status of the fan motor (10) and a second detection module (26) for monitoring the operating status of the oscillating motor (23). The first detection module (19) and the second detection module (26) are respectively electrically connected to the main control module (20).

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