Fan capable of controlling rotation angle

Abstract

The utility model provides a fan capable of controlling the rotation angle, the fan comprises a fan body, a base, a lower shell and an upper shell, the lower shell is fixedly connected with the base, the top of the lower shell is connected with a rotating mechanism, the top of the upper shell is connected with the rotating mechanism, the fan body is fixedly arranged in the upper shell, and the lower shell is fixedly connected with the base. The rotating mechanism is used for driving the upper shell to rotate, and the controller is respectively connected with the infrared sensors and the rotating mechanism. The infrared sensor senses the range where a person is located and transmits a signal to the controller, the controller controls the rotating mechanism to work and drives the upper shell and the fan body to rotate within the range where the person is located, and therefore air is blown to the person within the rotating range, large-range air blowing can be achieved without multiple fans, and the fan is convenient to use. And only people in a small range can be blown, so that the energy waste is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of fans. More specifically, it relates to a fan with a controllable rotation angle. Background Art

[0002] Fans are commonly used electrical appliances in summer. In the hot summer, fans can provide people with a cool working and living environment. The swing range of traditional fans is fixed, and the fan swing is controlled by a connecting rod. When a person's position is outside the swing range of the fan, they cannot be blown, and the number of fans needs to be increased. When the area where a person is located is small, the swing range of the fan cannot be adjusted accordingly and still swings according to the original swing angle, taking a long time to complete a swing cycle, affecting people's cooling effect and causing waste of energy. Summary of the Invention

[0003] To achieve the above object, the technical solution adopted in this application is: to provide a fan with a controllable rotation angle, including: a fan body, a base, a lower housing, and an upper housing. The lower housing is fixedly connected to the base. A rotating mechanism is connected to the top of the lower housing. The top of the upper housing is connected to the rotating mechanism. The fan body is fixedly arranged inside the upper housing. The rotating mechanism is used to drive the upper housing to rotate. It also includes a controller and one or more infrared sensors. The controller is respectively connected to the infrared sensors and the rotating mechanism.

[0004] Optionally, the rotating mechanism includes a motor and a speed reducer. The output end of the motor is connected to the input end of the speed reducer. The output end of the speed reducer is coaxially and fixedly connected to the upper housing.

[0005] Optionally, the rotating mechanism further includes a battery compartment and a power supply and a main control circuit board located in the battery compartment. The main control circuit board is respectively connected to the power supply and the motor. The motor and the speed reducer are located in the battery compartment. A first rotating shaft circuit board and a second rotating shaft circuit board are sequentially arranged above the battery compartment. The first rotating shaft circuit board is electrically connected to the main control circuit board. A plurality of contacts are arranged on the first rotating shaft circuit board. The second rotating shaft circuit board is provided with an annular conductive strip. The annular conductive strip is slidably connected to the contacts. The second rotating shaft circuit board is fixedly connected to the upper housing. The fan body is electrically connected to the second rotating shaft circuit board.

[0006] Optionally, the controller is arranged on the main control circuit board. The infrared sensor is connected to the main control circuit board.

[0007] Optionally, a lamp cover and a lighting circuit board arranged in the lamp cover are provided at the top of the upper housing. The lighting circuit board is connected to the second rotating shaft circuit board.

[0008] Optionally, a speaker is disposed inside the lower housing, and the speaker is connected to the power supply.

[0009] Optionally, a heating component is disposed inside the upper housing. The heating component includes an upper heater housing, a lower heater housing, and a heating plate. The upper heater housing and the lower heater housing form a channel for inserting a mosquito repellent sheet or an aromatherapy sheet. The heating plate is used to heat the mosquito repellent sheet or the aromatherapy sheet, and the heating plate is connected to the second rotating shaft circuit board.

[0010] Optionally, a hook is disposed at the bottom of the base, and the hook is hinged to the base.

[0011] Optionally, the fan body includes two fan blades, and the two fan blades are arranged in parallel along the height direction of the fan.

[0012] The beneficial effect of the fan with controllable rotation angle provided by this application is that: compared with the prior art, this application uses an infrared sensor to sense the range where a person is located, and transmits the signal to the controller. The controller controls the rotation mechanism to work, driving the upper housing and the fan body to rotate within the range where the person is located, so as to blow air on the person within the rotation range. It is not necessary to use multiple fans to achieve large-range air blowing, and it is also possible to blow air only on a person within a smaller range, reducing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 FIG. is a schematic diagram of the overall structure of the fan with controllable rotation angle provided by the embodiment of this application;

[0015] Figure 2 FIG. is a schematic diagram of the internal structure of the fan with controllable rotation angle provided by the embodiment of this application;

[0016] Figure 3 FIG. is a three-dimensional structure diagram of the rotation mechanism;

[0017] Figure 4 FIG. is a cross-sectional view of the rotation mechanism;

[0018] Figure 5 FIG. is a schematic diagram of the structure of the heating component in the fan with controllable rotation angle provided by the embodiment of this application;

[0019] Figure 6The bottom view of the fan with controllable rotation angle provided by the embodiment of the present application. Wherein, each reference numeral in the figure:

[0020] 1, base; 2, lower housing; 3, upper housing; 4, fan body; 5, rotating mechanism; 51, motor; 52, speed reducer; 53, battery compartment; 54, output shaft of the speed reducer; 55, first rotating shaft circuit board; 56, second rotating shaft circuit board; 57, main control circuit board; 58, terminal block; 6, heating component; 61, lower housing of the heater; 62, upper housing of the heater; 63, heating plate; 64, mosquito repellent sheet; 7, speaker; 8, lampshade; 9, hook. Detailed implementation manners

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0025] Please refer to Figure 1 and Figure 2 together, and now the fan with controllable rotation angle provided by the embodiment of the present application will be described.

[0026] A fan with a controllable rotation angle includes a fan body 4, a base 1, a lower housing 2 and an upper housing 3. The lower housing 2 is fixedly connected to the base 1. A rotating mechanism 5 is connected to the top of the lower housing 2. The top of the upper housing 3 is connected to the rotating mechanism 5. The fan body 4 is fixedly arranged inside the upper housing 3. The rotating mechanism 5 is used to drive the upper housing 3 to rotate. It also includes a controller and one or more infrared sensors. The controller is respectively connected to the infrared sensors and the rotating mechanism 5.

[0027] In this application, the infrared sensor senses the range where people are located and transmits the signal to the controller. The controller controls the rotating mechanism 5 to work, driving the upper housing 3 and the fan body 4 to rotate within the range where people are located, so as to blow air on the people within the rotation range. It can achieve large-range air blowing without multiple fans, or only blow air on people in a smaller range, reducing energy waste.

[0028] In some embodiments of this application, refer to Figure 4 , the rotating mechanism 5 includes a motor 51 and a speed reducer 52. The output end of the motor 51 is connected to the input end of the speed reducer 52. The output end of the speed reducer 52 is fixedly connected to the upper housing 3 coaxially.

[0029] The motor 51 can drive the input end of the speed reducer 52 to rotate, thereby driving a plurality of gears in the speed reducer 52 to rotate in sequence, driving the output shaft 54 of the speed reducer to rotate. The output shaft 54 of the speed reducer is fixedly connected to the upper housing 3, thereby driving the upper housing 3 and the fan body 4 located inside the upper housing 3 to rotate, realizing the rotation of the fan. After deceleration by the speed reducer 52, the rotation of the fan is more stable.

[0030] Refer to Figures 3 and Figure 4 , in some embodiments of this application, the rotating mechanism 5 further includes a battery compartment 53 and a power supply and a main control circuit board 57 located in the battery compartment 53. The main control circuit board 57 is respectively connected to the power supply and the motor 51. The motor 51 and the speed reducer 52 are located in the battery compartment 53. A first rotating shaft circuit board 55 and a second rotating shaft circuit board 56 are sequentially arranged above the battery compartment 53. The first rotating shaft circuit board 55 is electrically connected to the main control circuit board 57. A plurality of contacts are arranged on the first rotating shaft circuit board 55. The second rotating shaft circuit board 56 is provided with a ring-shaped conductive strip. The ring-shaped conductive strip is slidably connected to the contacts. The second rotating shaft circuit board 56 is fixedly connected to the upper housing 3. The fan body 4 is electrically connected to the second rotating shaft circuit board 56.

[0031] The battery compartment 53 can provide installation positions for the power supply, the main control circuit board 57, the motor 51, the speed reducer 52, etc. The power supply supplies power to the main control circuit board 57 and the first rotating shaft circuit board 55. The first rotating shaft circuit board 55 supplies power to the second rotating shaft circuit board 56 through the contacts and the ring-shaped conductive strip. The second rotating shaft circuit board 56 can rotate with the upper housing 3 and supply power to the fan body 4 at the same time, avoiding the problem of wire entanglement.

[0032] In some embodiments of the present application, the controller is disposed on the main control circuit board 57, and the infrared sensor is connected to the main control circuit board 57. The infrared sensor can be disposed around the lower housing 2 or at other positions, which is not limited in the present application. The position of the human body can be identified by the infrared sensor, and a signal is sent to the controller. The controller can rotate the hole motor 51 according to the position of the human body, thereby driving the fan body 4 to rotate and controlling the rotation within the range where people are located.

[0033] In some embodiments of the present application, the number of infrared sensors can be 1, 2, 3, 4, etc., which can be set according to specific requirements and is not limited in the present application.

[0034] In some embodiments of the present application, referring to Figure 1 , a lamp shade 8 and a lamp panel (not shown in the figure) disposed in the lamp shade 8 are provided on the top of the upper housing 3, and the lamp panel is connected to the second rotating shaft circuit board 56.

[0035] The second rotating shaft circuit board 56 can supply power to the lamp panel. After the lamp panel is powered on, it lights up, and the lamp shade 8 can make the light softer. By providing the lamp panel and the lamp shade 8, the fan provided by the present application can be used for lighting at night.

[0036] In some embodiments of the present application, a touch switch is provided on the top of the lamp shade 8 for controlling the lighting and extinguishing of the lamp panel.

[0037] In some embodiments of the present application, referring to Figure 2 , a speaker 7 is disposed in the lower housing 2, and the speaker 7 is connected to the power supply. Music can be played through the speaker 7 to improve the practicality of the present fan.

[0038] In some embodiments of the present application, referring to Figure 2 and Figure 5 , a heating component 6 is disposed in the upper housing 3. The heating component 6 includes a heater upper shell 62, a heater lower shell 61, and a heating plate 63. The heater upper shell 62 and the heater lower shell 61 form a channel for inserting a mosquito repellent sheet or an aromatherapy sheet, and the heating plate 63 is used for heating the mosquito repellent sheet or the aromatherapy sheet. The heating plate 63 is connected to the second rotating shaft circuit board 56.

[0039] The mosquito repellent sheet 64 or the aromatherapy sheet can be heated through the heating component 6 to realize the mosquito repellent function and the aromatherapy function, and improve the practicality of the present fan.

[0040] In some embodiments of the present application, referring to Figure 6 , a hook 9 is provided at the bottom of the base 1, and the hook 9 is hinged to the base 1.

[0041] By setting the hook 9, the fan can be hung up for easy storage, or the fan can be lifted by the hook 9 when it needs to be carried, which is convenient for carrying.

[0042] In some embodiments of the present application, refer to Figure 1 and Figure 2 , the fan body 4 includes two fan blades, and the two fan blades are arranged side by side along the height direction of the fan. Setting two fan blades can improve the ventilation effect.

[0043] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fan with controllable rotation angle, characterized in that: It includes a fan body, a base, a lower shell and an upper shell, the lower shell is fixedly connected to the base, the top of the lower shell is connected to a rotating mechanism, the top of the upper shell is connected to the rotating mechanism, the fan body is fixedly arranged inside the upper shell, the rotating mechanism is used to drive the upper shell to rotate, and also includes a controller and one or more infrared sensors, the controller is respectively connected to the infrared sensor and the rotating mechanism.

2. The fan with controllable rotation angle as claimed in claim 1, characterized in that: The rotating mechanism comprises a motor and a reducer, the output end of the motor is connected to the input end of the reducer, and the output end of the reducer is coaxially fixedly connected to the upper housing.

3. The fan with controllable rotation angle as claimed in claim 2, characterized in that: The rotating mechanism also includes a battery compartment and a power supply and a main control circuit board located in the battery compartment, the main control circuit board is connected to the power supply and the motor respectively, the motor and the reducer are located in the battery compartment, and a first shaft circuit board and a second shaft circuit board are sequentially arranged above the battery compartment, the first shaft circuit board is electrically connected to the main control circuit board, a plurality of contacts are arranged on the first shaft circuit board, the second shaft circuit board is provided with an annular conductive strip, the annular conductive strip is slidably connected to the contacts, the second shaft circuit board is fixedly connected to the upper shell, and the fan body is electrically connected to the second shaft circuit board.

4. The fan with controllable rotation angle as claimed in claim 3, characterized in that: The controller is arranged on the main control circuit board, and the infrared sensor is connected to the main control circuit board.

5. The fan with controllable rotation angle as claimed in claim 3, characterized in that: A lampshade and a lighting lamp board arranged in the lampshade are arranged on the top of the upper shell, and the lighting lamp board is connected to the second rotating shaft circuit board.

6. The fan with controllable rotation angle as claimed in claim 3, characterized in that: A sound box is arranged in the lower shell body, and the sound box is connected to the power supply.

7. The fan with controllable rotation angle as claimed in claim 3, characterized in that: A heating component is arranged in the upper shell body, and the heating component includes a heater upper shell, a heater lower shell and a heating plate. The heater upper shell and the heater lower shell form a channel for inserting a mosquito repellent sheet or an aromatherapy sheet. The heating plate is used to heat the mosquito repellent sheet or the aromatherapy sheet. The heating plate is connected to the second rotating shaft circuit board.

8. The fan with controllable rotation angle as claimed in claim 1, characterized in that: A hook is arranged at the bottom of the base, and the hook is hinged to the base.

9. The fan with controllable rotation angle as claimed in claim 1, characterized in that: The fan body includes two fan blades, and the two fan blades are arranged in parallel along the height direction of the fan.

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