Tower fan control device and air supply equipment

Abstract

The utility model discloses a tower fan control device and air supply equipment. The tower fan control device comprises a detection module, a control module and an air supply module, and the control module is connected with the detection module and the air supply module; the detection module is used for generating a detection signal according to the position of the tower fan and sending the detection signal to the control module; the control module is used for determining the angle of the tower fan under the condition that the detection signal is a preset signal, generating a control signal according to the angle of the tower fan and sending the control signal to the air supply module; the air supply module is used for controlling the tower fan to rotate according to the control signal. Therefore, through mutual cooperation of the detection module and the control module, the angle of the tower fan is determined, and rotation of the tower fan is controlled according to the angle of the tower fan, so that the situation that the tower fan still continues to move when rotating to the boundary is avoided, and shaking of the tower fan body is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of tower fan control, and more specifically, to a tower fan control device and air supply equipment. Background Art

[0002] With the development of Internet of Things technology, tower fans have emerged. The swing head of the tower fan is controlled by a stepper motor, that is, the left and right rotation of the swing head are controlled by the stepper motor. When the tower fan is abnormally powered off, the control center of the tower fan cannot know the angle of the tower fan.

[0003] In the related art, in order to prevent the tower fan from rotating at an angle exceeding the maximum preset angle, a limiting structure is added to both ends of the tower fan. When the current angle of the tower fan cannot be determined, the tower fan rotates normally in any direction. When the tower fan rotation angle has not exceeded the maximum rotation angle of the tower fan and the tower fan has reached the boundary, the tower fan continues to rotate in the same direction by blocking the limiting structure until the tower fan rotation angle reaches the maximum rotation angle, thereby determining the angle of the tower fan. However, the tower fan body is prone to shaking when the tower fan angle is determined by blocking the limiting structure. Utility Model Content

[0004] In view of the above problems, the present application proposes a tower fan control device and an air supply device, which can reduce the shaking of the tower fan body.

[0005] In the first aspect, the present application provides a tower fan control device, which includes: a detection module, a control module and an air supply module, wherein: the control module is connected to the detection module and the air supply module respectively; the detection module is used to generate a detection signal according to the position of the tower fan, and send the detection signal to the control module; the control module is used to determine the angle of the tower fan when the detection signal is a preset signal, so as to generate a control signal according to the angle of the tower fan, and send the control signal to the air supply module; the air supply module is used to control the rotation of the tower fan according to the control signal.

[0006] In a second aspect, the present application further provides an air supply device, which includes: a tower fan and the above-mentioned tower fan control device, wherein: the tower fan is used to rotate according to the control of the tower fan control device.

[0007] The technical solution provided by the present application, the tower fan control device includes: a detection module, a control module and an air supply module, wherein: the control module is connected to the detection module and the air supply module respectively; the detection module is used to generate a detection signal according to the position of the tower fan, and send the detection signal to the control module; the control module is used to determine the angle of the tower fan when the detection signal is a preset signal, so as to generate a control signal according to the angle of the tower fan and send the control signal to the air supply module; the air supply module is used to control the rotation of the tower fan according to the control signal. Thus, the angle of the tower fan is determined by the mutual cooperation between the detection module and the control module, and then the rotation of the tower fan is controlled according to the angle of the tower fan, so as to avoid the situation where the tower fan continues to move when it rotates to the boundary, so as to effectively reduce the shaking of the tower fan body. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments and drawings obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0009] Figure 1 It is a structural schematic diagram of a tower fan control device provided in an embodiment of the present application.

[0010] Figure 2 It is a circuit structure diagram of a detection module provided in an embodiment of the present application.

[0011] Figure 3 It is a circuit structure diagram of a control module provided in an embodiment of the present application.

[0012] Figure 4 It is a structural schematic diagram of another tower fan control device provided in an embodiment of the present application.

[0013] Figure 5 It is a circuit structure diagram of an air supply control circuit provided in an embodiment of the present application.

[0014] Figure 6 It is a structural schematic diagram of another tower fan control device provided in an embodiment of the present application.

[0015] Figure 7 It is a structural schematic diagram of another tower fan control device provided in an embodiment of the present application.

[0016] Figure 8 It is a circuit structure diagram of an input module provided in an embodiment of the present application.

[0017] Fig. 9It is a structural schematic diagram of another tower fan control device provided in an embodiment of the present application.

[0018] Fig.10 It is a circuit structure diagram of a conversion module provided in an embodiment of the present application.

[0019] Fig.11 It is a structural schematic diagram of an air supply device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0021] In the following description, reference is made to "some embodiments", which describes a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict. In the following description, reference is made to the term "multiple" to mean at least two.

[0022] In the following description, the terms "first\second" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0024] With the development of Internet of Things technology, tower fans have emerged. The swing head of the tower fan is controlled by a stepper motor, that is, the left and right rotation of the swing head are controlled by the stepper motor. When the tower fan is abnormally powered off, the control center of the tower fan cannot know the angle of the tower fan.

[0025] In the related art, in order to prevent the tower fan from rotating at an angle exceeding the maximum preset angle, a limiting structure is added to both ends of the tower fan. When the current angle of the tower fan cannot be determined, the tower fan rotates normally in any direction. When the tower fan rotation angle has not exceeded the maximum rotation angle of the tower fan and the tower fan has reached the boundary, the tower fan continues to rotate in the same direction by blocking the limiting structure until the tower fan rotation angle reaches the maximum rotation angle, thereby determining the angle of the tower fan. However, the tower fan body is prone to shaking when the tower fan angle is determined by blocking the limiting structure.

[0026] In order to improve the above-mentioned problems, the present application provides a tower fan control device and an air supply device, the tower fan control device comprising: a detection module, a control module and an air supply module, wherein: the control module is respectively connected to the detection module and the air supply module; the detection module is used to generate a detection signal according to the position of the tower fan, and send the detection signal to the control module; the control module is used to determine the angle of the tower fan when the detection signal is a preset signal, so as to generate a control signal according to the angle of the tower fan, and send the control signal to the air supply module; the air supply module is used to control the rotation of the tower fan according to the control signal.

[0027] Therefore, the detection module cooperates with the control modules to determine the angle of the tower fan, and then controls the rotation of the tower fan according to the angle of the tower fan, thereby avoiding the situation where the tower fan continues to move when it rotates to the boundary, thereby effectively reducing the shaking of the tower fan body.

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0029] See also Figure 1 , Figure 1 Schematic diagram of the structure of a tower fan control device provided in an embodiment of the present application. Figure 1 As shown, Figure 1 The tower fan control device 100 includes a detection module 110, a control module 120 and an air supply module 130.

[0030] Among them, the control module 120 is connected to the detection module 110 and the air supply module 130 respectively; the detection module 110 is used to generate a detection signal according to the position of the tower fan, and send the detection signal to the control module 120; the control module 120 is used to determine the angle of the tower fan when the detection signal is a preset signal, so as to generate a control signal according to the angle of the tower fan and send the control signal to the air supply module 130; the air supply module 130 is used to control the rotation of the tower fan according to the control signal.

[0031] When the control module 120 determines that the detection signal is a preset signal based on the detection signal, it indicates that the tower fan has rotated to a boundary (for example, a right boundary or a left boundary). When it is determined that the tower fan has rotated to a boundary, the control module 120 generates a control signal so that the air supply module 130 drives the tower fan to rotate in the opposite direction by a preset angle under the action of the control signal, indicating that the tower fan has reached another boundary. After the tower fan rotates in the opposite direction by a preset angle, the tower fan is controlled to rotate in the opposite direction by a preset angle again so that the tower fan returns to the original boundary, and so on.

[0032] The detection module 110, the control module 120 and the air supply module 130 cooperate with each other to avoid the tower fan continuing to rotate in the same direction when it has rotated to any boundary, thereby causing the tower fan body to shake.

[0033] Further, in some embodiments, see Figure 2 , Figure 2 is a circuit structure diagram of a detection module provided in an embodiment of the present application. Figure 2 As shown, the detection module 110 includes a photoelectric coupler U1, a first resistor R1 and a second resistor R2. The first end of the photoelectric coupler U1 is connected to the power supply through the first resistor R1, the second end and the third end of the photoelectric coupler U1 are respectively connected to the ground, the fourth end of the photoelectric coupler U1 is connected to the power supply through the second resistor R2, and the fourth end of the photoelectric coupler U1 is also connected to the control module 110.

[0034] In some embodiments, the power supply may be an external DC voltage of 5 V. In other embodiments, the power supply may be an external DC voltage of 3.3 V or 3 V.

[0035] The working principle of the photocoupler U1 is mainly based on the obstruction or reflection of the light beam by the detected object. The photocoupler U1 contains a transmitter and a receiver. The transmitter is responsible for emitting a light beam (usually infrared light), while the receiver is responsible for receiving the reflected light beam. The receiver in the photocoupler U1 will receive changes in light of varying degrees or presence or absence, and convert these changes into electrical signals, namely detection signals.

[0036] In the implementation of the present application, the photoelectric coupler U1 is set at the boundary of the tower fan (for example, the right boundary or the left boundary). A shading sheet is set on the swivel flange of the tower fan. When the tower fan swings, it will drive the shading sheet to rotate. When the shading sheet rotates to the position where the photoelectric coupler U1 is set, the shading sheet will block the signal transmitted from the internal transmitter of the photoelectric coupler U1 to the receiver, thereby disconnecting the field effect tube of the photoelectric coupler U1 to output a detection signal at the fourth end of the photoelectric coupler U1. At this time, the detection signal is a high level.

[0037] When the tower fan is far away from the position where the photocoupler U1 is set, the signal transmitted by the internal transmitter of the photocoupler U1 to the receiver can be received by the internal receiver of the photocoupler U1 because there is no shading sheet to block it, so that the field effect tube of the photocoupler U1 is turned on to output a detection signal at the fourth end of the photocoupler U1. At this time, the detection signal is at a low level.

[0038] In some embodiments, the control module 120 compares the electrical signal generated by the photocoupler U1 with a preset threshold value. When the electrical signal is less than the preset threshold value, the photoelectric switch of the photocoupler U1 is triggered, that is, the field effect tube of the photocoupler U1 is disconnected, and a detection signal is output at the fourth terminal of the photocoupler U1, and the detection signal is at a high level at this time.

[0039] When the electrical signal is greater than or equal to the preset threshold, the photoelectric switch of the photoelectric coupler U1 will be triggered, that is, the field effect tube of the photoelectric coupler U1 is turned on, and a detection signal is output at the fourth end of the photoelectric coupler U1. At this time, the detection signal is at a low level.

[0040] Thus, the level output by the detection module 110 can be used to determine whether the tower fan has moved to the boundary. When the detection module 110 outputs a high level, it can be determined that the tower fan has moved to the boundary, and the tower fan can be controlled to move in the opposite direction by a corresponding angle (for example, the maximum angle limit) to move to another boundary, and so on. This avoids the situation where the tower fan continues to rotate at the same angle when it moves to the boundary, causing the tower fan body to shake.

[0041] In some embodiments, when the tower fan is switched from an abnormal power-off state to a power-on state, the control module 120 controls the tower fan to move in the direction where the photoelectric coupler U1 is provided, so as to re-determine the angle of the tower fan. Before the control module 120 controls the tower fan to move in the direction where the photoelectric coupler U1 is provided, the control module 120 first determines whether the tower fan is currently at the position where the photoelectric coupler U1 is provided (i.e., the tower fan is currently at the boundary).

[0042] The control module 120 determines this through the detection signal output by the detection module 110. When the detection signal is at a low level, it can be determined that the tower fan is not currently at the boundary, and the control module 120 generates corresponding working parameters and sends them to the air supply module 130 to control the air supply module 130 to move to the position where the photoelectric coupler U1 is set.

[0043] When the detection signal is at a high level, it can be determined that the tower fan is currently at the boundary. However, due to the influence of static electricity, thunder, and dust on the transmitter / receiver, the control module 120 may be abnormal. That is, although the detection signal is at a high level, the tower fan is actually not at the boundary. In order to avoid the influence of abnormal conditions such as static electricity, thunder, and dust on the transmitter / receiver, the control module 120 can first control the air supply module 130 to move a preset angle (for example, 20 degrees) in the direction of another boundary. After the air supply module 130 moves a preset angle in the direction of another boundary, the level of the detection signal is detected again. If the detection signal is at a low level at this time, it means that it is not disturbed by abnormal conditions at this time. If the detection signal is at a high level at this time, it means that it is disturbed by abnormal conditions at this time.

[0044] In some embodiments, if it is determined that there is interference due to an abnormal situation, the control module 120 no longer generates a control signal according to the detection signal to control the air supply module 130. In some embodiments, when the detection module 110 and the control module 120 cooperate with each other and determine that there is interference due to an abnormal situation, the tower fan and the limiting structure cooperate to avoid the tower fan moving to the boundary, and the tower fan still continues to rotate at the same angle, so that the tower fan body shakes.

[0045] Through the detection signal output by the detection module 110, it can be determined whether the tower fan has moved to the boundary and whether the tower fan has been disturbed by abnormal conditions, so as to avoid the situation where the tower fan continues to rotate at the same angle when the tower fan moves to the boundary, causing the tower fan body to shake.

[0046] Furthermore, in some embodiments, the detection module 110 further includes a filter capacitor C1, one end of the filter capacitor C1 is connected to the fourth end of the photocoupler U1, and the other end of the filter capacitor C1 is connected to the ground. The filter capacitor C1 is used to filter the electrical signal converted by the internal receiver of the photocoupler U1 according to the received signal, so as to improve the stability and sensitivity of the electrical signal, and indirectly improve the stability and sensitivity of the detection signal.

[0047] During the rotation of the tower fan, the shading plate of the rotating flange is driven to generate a detection signal (i.e., a high level or a low level) through the coordination between the shading plate and the photoelectric coupler U1, and the detection signal is sent to the control module 120. The control module 120 can determine the angle of the tower fan (determine whether the tower fan has reached the position set by the photoelectric coupler U1) according to the received detection signal and the preset signal, and thus generate a control signal according to the determined angle of the tower fan to control the rotation of the tower fan, thereby preventing the tower fan from continuing to rotate at the same angle when it moves to the boundary, causing the tower fan body to shake.

[0048] Further, in some embodiments, see Figure 3 , Figure 3 is a circuit structure diagram of a control module provided in an embodiment of the present application. Figure 3 As shown, the control module 120 includes a micro-control unit U2, a first micro-control capacitor C2 and a second micro-control capacitor C3; the first end of the micro-control unit U2 is used for grounding, the second end, the third end, the fourth end and the fifth end of the micro-control unit U2 are respectively connected to the air supply module 130, the sixth end of the micro-control unit U2 is connected to the detection module 110, the seventh end of the micro-control unit U2 is respectively connected to one end of the first micro-control capacitor C2 and one end of the second micro-control capacitor C3, one end of the first micro-control capacitor C2 is connected to the power supply, and the other end of the first micro-control capacitor C2 and the other end of the second micro-control capacitor C3 are respectively used for grounding.

[0049] The micro control unit U2 may be a micro control unit (MCU). The first end of the micro control unit U2 is the GND pin (pin 1) of the micro control unit; the second end, the third end, the fourth end and the fifth end of the micro control unit U2 are respectively the micro control unit TK12 / AN12 / RB3 pin (pin 7), the TK11 / AN11 / RB4 pin (pin 8), the RA6 / TK6 / AN6 pin (pin 9) and the RA5 / TK5 / AN5 pin (pin 10); the sixth end of the micro control unit U2 is the micro control unit VDD pin (pin 16).

[0050] The power supply (5V) and the GND pin form a power supply path to supply power to the micro-control unit U2, and the first micro-control capacitor C2 and the second micro-control capacitor C3 will filter the power supply (5V) to ensure that the micro-control unit U2 can work normally. The micro-control unit U2 determines the angle of the tower fan according to the detection signal to generate a control signal, and then sends the control signal to the air supply module 130 to control the rotation of the tower fan through the air supply module 130, thereby avoiding the tower fan moving to the boundary, and the tower fan still continues to rotate at the same angle, so that the tower fan body shakes.

[0051] Specifically, in some embodiments, please refer to Figure 4 , Figure 4 Schematic diagram of another tower fan control device provided in an embodiment of the present application. Figure 4As shown, the air supply module 130 includes an air supply control circuit 131 and a stepper motor 132, and the air supply control circuit 131 is connected to the control module 120 and the stepper motor 132 respectively; the control module 120 is used to determine the working parameters of the air supply module 130 after detecting the switch from the abnormal power-off state to the power-on state, and send the working parameters to the air supply control circuit 131; the air supply control circuit 131 is used to generate an execution signal according to the working parameters, and send the execution signal to the stepper motor 132; the stepper motor 132 is used to drive the tower fan to rotate according to the execution signal.

[0052] After the control module 120 detects that the tower fan switches from an abnormal power-off state to a power-on state, the control module 120 determines the working parameters of the air supply module 130 to control the tower fan to rotate to the position set by the micro-control unit U2. The control module 120 sends the determined working parameters to the air supply control circuit 131, and the air supply control circuit 131 generates an execution signal according to the working parameters to control the stepper motor 132 to work in the corresponding rotation direction and / or rotation angle in the working parameters through the execution signal, so that the tower fan rotates to the position set by the micro-control unit U2, and then determines that the angle of the tower fan is at the boundary.

[0053] Furthermore, in some embodiments, see Figure 5 , Figure 5 is a circuit structure diagram of an air supply control circuit provided in an embodiment of the present application. Figure 5 As shown, the air supply control circuit 131 includes a signal processing chip U3, and the first input terminal, the second input terminal, the third input terminal and the fourth input terminal of the signal processing chip U3 are respectively connected to the control module 120 to receive working parameters; the fifth input terminal of the signal processing chip U3 is used to connect to an external power supply; the first output terminal, the second output terminal, the third output terminal and the fourth output terminal of the signal processing chip U3 are respectively connected to the stepper motor 132 to send an execution signal to the stepper motor 132.

[0054] The signal processing chip U3 may be a chip of the AIP2003L-SOP-16P IN model. The first input terminal, the second input terminal, the third input terminal and the fourth input terminal of the signal processing chip U3 are respectively pin 1 (1B), pin 2 (2B), pin 3 (3B) and pin 4 (4B) of the chip of the AIP2003L-SOP-16P IN model. The first input terminal, the second input terminal, the third input terminal and the fourth input terminal of the signal processing chip U3 are respectively connected to the microcontroller unit TK12 / AN12 / RB3 pin (pin 7), TK11 / AN11 / RB4 pin (pin 8), RA6 / TK6 / AN6 pin (pin 9) and RA5 / TK5 / AN5 pin (pin 10) to receive the working parameters sent by the microcontroller unit U2.

[0055] The first output terminal, the second output terminal, the third output terminal and the fourth output terminal of the signal processing chip U3 are respectively pin 13 (4C), pin 14 (3C), pin 15 (2C) and pin 16 (1C) of the chip model A IP2003L-SOP-16P IN.

[0056] The working principle of the stepper motor 132 is mainly based on the control of the electric pulse signal, which converts the electric pulse signal into a mechanical angular displacement or a linear displacement. The interior of the stepper motor 132 is mainly composed of a stator and a rotor, wherein the stator has a plurality of coils, and the rotor is usually a permanent magnet. When current flows through the stator coils, these coils generate a magnetic field, which interacts with the permanent magnet of the rotor, thereby driving the rotor to rotate, thereby realizing the forward rotation, reverse rotation and speed of the stepper motor 132.

[0057] That is, each time an electric pulse signal (the control signal is composed of the corresponding electric pulse signal) is input to the stepper motor 132, the stepper motor 132 rotates a step angle to achieve forward or backward movement. By controlling the frequency and number of pulse signals, the speed and rotation angle of the stepper motor 132 can be accurately controlled, and changing the order in which the windings of the stepper motor 132 are energized can make the stepper motor 132 rotate forward or reverse.

[0058] In addition, it can be seen from the above description that the detection module 110, the control module 120 and the air supply control circuit 131 all need to be connected to the power supply to obtain the working voltage to ensure that the detection module 110, the control module 120 and the air supply control circuit 131 can work normally. In order to avoid the power supply being directly connected to the detection module 110, the control module 120 and the air supply control circuit 131, the noise and other signals in the power supply will interfere with the work of the detection module 110, the control module 120 and the air supply control circuit 131.

[0059] To avoid the above situation, in some embodiments, please refer to Figure 6 , Figure 6 Schematic diagram of the structure of another tower fan control device provided in the embodiment of the present application. Figure 6 As shown, the tower fan control device 100 further includes an input module 140 and a conversion module 150 . The input module 140 is connected to the air supply module 130 and the conversion module 150 , respectively. The conversion module 150 is connected to the control module 120 .

[0060] Among them, the input module 140 is used to provide the first direct current to the air supply module 130 and the conversion module 150; the conversion module 150 is used to convert the first direct current into the second direct current to provide the second direct current to the control module 120, and the voltage of the first direct current is greater than the voltage of the second direct current.

[0061] The input module 140 is used to receive a power supply (for example, a 24V DC voltage), and the input module 140 performs corresponding processing on the power supply to generate a first DC power according to the power supply, and provide the first DC power to the air supply module 130 to ensure that the air supply module 130 can work normally. At the same time, the input module 140 also provides the first DC power to the conversion module 150, so that the conversion module 150 can convert the first DC power into a second DC power, and provide it to the control module 120 to ensure that the control module 120 can work normally.

[0062] Further, in some embodiments, see Figure 7 , Figure 7 Schematic diagram of the structure of another tower fan control device provided in the embodiment of the present application. Figure 7 As shown, the input module 140 includes a first input unit 141, a second input unit 142, a third input unit 143 and a fourth input unit 144. The second input unit 142 is respectively connected to the first input unit 141 and the third input unit 143, and the fourth input unit 144 is respectively connected to the third input unit 143, the air supply module 130 and the conversion module 150.

[0063] Among them, the first input unit 141 is used to filter out high-frequency noise signals in the power supply to obtain a third direct current; the second input unit 142 is used to filter out abnormal high-voltage signals in the third direct current to obtain a fourth direct current; the third input unit 143 is used to filter out electromagnetic wave signals in the fourth direct current to obtain a fifth direct current; and the fourth input unit 144 is used to smooth the fifth direct current to obtain the first direct current.

[0064] Furthermore, in some embodiments, see Figure 8 , Figure 8 is a circuit structure diagram of an input module provided in an embodiment of the present application. Figure 8 As shown, the first input unit 141 includes a first input capacitor C4, a second input capacitor C5, a first magnetic bead RL1 and a second magnetic bead RL2, the two ends of the first input capacitor C4 are respectively connected to one end of the first magnetic bead RL1 and one end of the second magnetic bead RL2, the two ends of the second input capacitor C5 are respectively connected to the other end of the first magnetic bead RL1 and the other end of the second magnetic bead RL2, and the two ends of the second input capacitor C5 are respectively connected to the second input unit 142.

[0065] The high-frequency noise in the power supply is removed by the first input capacitor C4, the second input capacitor C5, the first magnetic bead RL1 and the second magnetic bead RL2, so that the output third direct current is more stable.

[0066] In some embodiments, please refer to Figure 8The second input unit 142 includes an input diode D1 and a fuse R1. The two ends of the input diode D1 are respectively connected to the two ends of the second input capacitor C5. The cathode of the input diode D1 is also connected to one end of the fuse R1. The other end of the fuse R1 is connected to the third input unit 143. The anode of the input diode D1 is used for grounding.

[0067] The input diode D1 can absorb the abnormal high voltage in the third direct current (for example, the abnormal high voltage caused by thunder) to protect other components. The fuse R1 can limit the current in the loop to not exceed a preset value (for example, the preset value is 2A) to prevent the components from burning out due to large current infusion. The third direct current is converted into a safer fourth direct current through the input diode D1 and the fuse R1.

[0068] In some embodiments, please refer to Figure 8 The third input unit 143 includes a third input capacitor C6, a common-mode inductor L1 and a fourth input capacitor C7. One end of the third input capacitor C6 is respectively connected to the other end of the fuse R1 and the first end of the common-mode inductor L1, the other end of the third input capacitor C6 is respectively connected to the positive electrode of the input diode D1 and the second end of the common-mode inductor L1, the two ends of the fourth input capacitor C7 are respectively connected to the third end and the fourth end of the common-mode inductor L1, and the two ends of the fourth input capacitor C7 are respectively connected to the fourth input unit 144.

[0069] The third input capacitor C6, the common mode inductor L1 and the fourth input capacitor C7 cooperate with each other to suppress the electromagnetic waves in the fourth direct current, thereby generating the fifth direct current, so as to prevent the electromagnetic waves in the fourth direct current from radiating outward.

[0070] In some embodiments, please refer to Figure 8 The fourth input unit 144 includes a fifth input capacitor EC1 and a sixth input capacitor C8, the two ends of the fifth input capacitor EC1 are respectively connected to the two ends of the sixth input capacitor C8, and the positive electrode of the fifth input capacitor EC1 is also respectively connected to the conversion module 150 and the air supply module 130.

[0071] The fifth input capacitor EC1 and the sixth input capacitor C8 play the role of storing energy and filtering low-frequency waves and high-frequency waves, so that the sawtooth wave (fifth direct current) is smoothed into a pulsating wave (sixth direct current) through the fifth input capacitor EC1 and the sixth input capacitor C8.

[0072] In the above, the power supply is converted into a safe first direct current through the cooperation between the first input unit 141, the second input unit 142, the third input unit 143 and the fourth input unit 144. This prevents the power supply from directly providing the operating voltage to the conversion module 150 and the air supply module 130, so as to protect the conversion module 150 and the air supply module 130.

[0073] As can be seen from the above description, the first direct current output by the input module 140 is 24V, and the working voltage required by the air supply control circuit 131 is 24V. The air supply control circuit 131 can directly use the first direct current as the working voltage to work. The working voltage required by the detection module 110 and the control module 120 is 5V. If the first direct current is directly used as the working voltage of the detection module 110 and the control module 120, the detection module 110 and the control module 120 will work abnormally.

[0074] To avoid the above situation, in some embodiments, please refer to Fig. 9 , Fig. 9 FIG. 1 is a schematic diagram of the structure of another tower fan control device provided in an embodiment of the present application. Fig. 9 As shown, the conversion module 150 includes a conversion protection circuit 151, a voltage output circuit 152 and a voltage processing circuit 153. The conversion protection circuit 151 is connected to the input module 140 and the voltage output circuit 152 respectively, and the voltage processing circuit 153 is connected to the voltage output circuit 152 and the control module 120 respectively.

[0075] Among them, the conversion protection circuit 151 is used to control the working state of the voltage output circuit according to the voltage of the first direct current and the preset voltage value; the voltage output circuit 152 is used to convert the first direct current into the sixth direct current when the voltage of the first direct current is greater than the preset voltage value; the voltage processing circuit 153 is used to smooth the sixth direct current to obtain the second direct current.

[0076] Through the cooperation among the conversion protection circuit 151, the voltage output circuit 152 and the voltage processing circuit 153, the first direct current is converted into the second direct current required by the detection module 110 and the control module 120, thereby avoiding the detection module 110 and the control module 120 from working abnormally.

[0077] Further, in some embodiments, see Fig.10 , Fig.10 is a circuit structure diagram of a conversion module provided in an embodiment of the present application. Fig.10As shown, the conversion protection unit 151 includes a first conversion resistor R2 and a second conversion resistor R3, one end of the first conversion resistor R2 is respectively connected to the input module 140 and the voltage output circuit 152, the other end of the first conversion resistor R2 is respectively connected to one end of the second conversion resistor R3 and the voltage output circuit 152, and the other end of the second conversion resistor R3 is used for grounding.

[0078] The function of the first conversion resistor R2 and the second conversion resistor R3 is to disconnect the power supply circuit from the conversion module 150 to the control module 120 when the first DC power is unstable (for example, the first DC power is lower than 16V). The connection point between the first conversion resistor R2 and the second conversion resistor R3 outputs a low voltage (for example, 1V) to disconnect the power supply circuit from the conversion module 150 to the control module 120.

[0079] In some embodiments, please refer to Fig.10 The voltage output circuit 152 includes a buck chip U4, a first conversion capacitor C9, a first conversion inductor L2, a third conversion resistor R4, a fourth conversion resistor R5 and a second conversion capacitor C10. The first end of the buck chip U4 is connected to one end of the first conversion capacitor C9, the second end of the buck chip U4 is connected to the other end of the second conversion resistor R3, the third end of the buck chip U4 is respectively connected to the other end of the third conversion resistor R4, one end of the fourth conversion resistor R5 and the other end of the second conversion capacitor C10, the fourth end of the buck chip U4 is connected to the other end of the first conversion resistor R2, the fifth end of the buck chip U4 is connected to one end of the first conversion resistor R2, and the sixth end of the buck chip U4 is connected to one end of the first conversion inductor L2; the other end of the first conversion capacitor C9 is connected to one end of the first conversion inductor L2, the other end of the first conversion inductor L2 is respectively connected to one end of the third conversion resistor R4, one end of the second conversion capacitor C10 and the voltage processing unit 153, and the other end of the fourth conversion resistor R5 is used for grounding.

[0080] The buck chip U4 may be a low dropout regulator (LDO), a buck converter chip (eg, a BUCK buck chip), or a discrete buck regulator, etc. In some embodiments, the buck chip U4 may be a chip of model RY8411.

[0081] The third conversion resistor R4 and the fourth conversion resistor R5 mainly play the role of voltage division, filtering and adjusting the gain of the feedback loop. That is, by dividing the output voltage of the buck chip U4 and feeding it back to the buck chip U4, it can more accurately control the output voltage of the buck chip U4. In addition, the noise and interference in the signal fed back to the buck chip U4 are filtered out to improve the stability of the feedback signal. At the same time, by adjusting the resistance values ​​of the third conversion resistor R4 and the fourth conversion resistor R5, the gain of the feedback loop can be changed, thereby achieving more accurate control of the output voltage of the buck chip U4.

[0082] The first conversion capacitor C9 is used to enable the high-end MOS tube inside the buck chip U4 to obtain sufficient driving voltage when it needs to be turned on. The first conversion inductor L2 is used to stabilize the output voltage of the buck chip U4. The second conversion capacitor C10 is used to smooth the voltage output by the buck chip U4 to ensure circuit stability.

[0083] The first direct current is converted into a sixth direct current through the step-down chip U4, the first conversion capacitor C9, the first conversion inductor L2, the third conversion resistor R4, the fourth conversion resistor R5 and the second conversion capacitor C10, that is, the 24V voltage is stepped down to 5V.

[0084] Further, in some embodiments, the voltage processing unit 153 includes a third conversion capacitor C11, a fourth conversion capacitor C12 and a conversion diode D1, one end of the third conversion capacitor C11 is connected to one end of the second conversion capacitor C10, the other end of the third conversion capacitor C11 is connected to the other end of the fourth conversion resistor R5, the two ends of the fourth conversion capacitor C12 and the two ends of the conversion diode D1 are respectively connected to the two ends of the third conversion capacitor C11, and the two ends of the conversion diode D1 are also connected to the control module 120.

[0085] The third conversion capacitor C11 and the fourth conversion capacitor C12 are used to store energy, filter low-frequency waves and filter high-frequency waves of the sixth direct current output by the voltage processing unit 153, so as to smooth the sixth direct current presenting a sawtooth wave into a second direct current presenting a pulsating wave. The conversion diode D1 prevents the instantaneous high voltage that can damage the control module 120 at the moment of power-on, and plays a role in filtering surges of the second direct current. The second direct current is then provided to the control module 120 and the air supply module 130 to ensure that the control module 120 and the air supply module 130 can work normally.

[0086] See also Fig.11 , Fig.11 is a structural schematic diagram of an air supply device provided in an embodiment of the present application, such as Fig.11 As shown, the air supply device 200 includes: a tower fan 210 and the tower fan control device 100 mentioned above.

[0087] The tower fan 210 is used to rotate according to the control of the tower fan control device 100 .

[0088] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the tower fan control device can refer to the corresponding process in the aforementioned embodiment, which will not be repeated here.

[0089] The embodiment of the present application provides a tower fan control device and air supply equipment, the tower fan control device includes: a detection module, a control module and an air supply module, wherein: the control module is connected to the detection module and the air supply module respectively; the detection module is used to generate a detection signal according to the position of the tower fan, and send the detection signal to the control module; the control module is used to determine the angle of the tower fan when the detection signal is a preset signal, so as to generate a control signal according to the angle of the tower fan and send the control signal to the air supply module; the air supply module is used to control the rotation of the tower fan according to the control signal. Thus, the angle of the tower fan is determined by the mutual cooperation between the detection module and the control module, and then the rotation of the tower fan is controlled according to the angle of the tower fan, so as to avoid the situation that the tower fan continues to move when it rotates to the boundary, so as to effectively reduce the shaking of the tower fan body.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tower fan control device, characterized in that: include: Detection module, control module and air supply module, wherein: The control module is connected to the detection module and the air supply module respectively; The detection module is used to generate a detection signal according to the position of the tower fan and send the detection signal to the control module; The control module is used for determining the angle of the tower fan when the detection signal is a preset signal, generating a control signal according to the angle of the tower fan, and sending the control signal to the air supply module; The air supply module is used to control the rotation of the tower fan according to the control signal.

2. The tower fan control device according to claim 1, characterized in that: The air supply module includes an air supply control circuit and a stepper motor, and the air supply control circuit is connected to the control module and the stepper motor respectively; The control module is used to determine the working parameters of the air supply module after detecting that the abnormal power-off state is switched to the power-on state, and send the working parameters to the air supply control circuit; The air supply control circuit is used to generate an execution signal according to the working parameter and send the execution signal to the stepping motor; The stepper motor is used to drive the tower fan to rotate according to the execution signal.

3. The tower fan control device according to claim 1, characterized in that: It also includes an input module and a conversion module, wherein: The input module is connected to the air supply module and the conversion module respectively, and the conversion module is connected to the control module; The input module is used to provide a first direct current to the air supply module and the conversion module; The conversion module is used for converting the first direct current into a second direct current to provide the second direct current to the control module, and the voltage of the first direct current is greater than the voltage of the second direct current.

4. The tower fan control device according to claim 1, characterized in that: The detection module includes a photoelectric coupler, a first resistor and a second resistor, the first end of the photoelectric coupler is connected to a power supply through the first resistor, the second end and the third end of the photoelectric coupler are respectively connected to a ground end, the fourth end of the photoelectric coupler is connected to the power supply through the second resistor, and the fourth end of the photoelectric coupler is also connected to the control module.

5. The tower fan control device according to claim 4, characterized in that: The detection module further includes a filter capacitor, one end of which is connected to the fourth end of the photoelectric coupler, and the other end of which is connected to the ground.

6. The tower fan control device according to claim 1, characterized in that: The control module includes a micro-control unit, a first micro-control capacitor and a second micro-control capacitor; The first end of the micro-control unit is used for grounding, the second end, the third end, the fourth end and the fifth end of the micro-control unit are respectively connected to the air supply module, the sixth end of the micro-control unit is connected to the detection module, the seventh end of the micro-control unit is respectively connected to one end of the first micro-control capacitor and one end of the second micro-control capacitor, one end of the first micro-control capacitor is connected to the power supply, and the other end of the first micro-control capacitor and the other end of the second micro-control capacitor are respectively used for grounding.

7. The tower fan control device according to claim 2, characterized in that: The air supply control circuit comprises a signal processing chip, wherein a first input terminal, a second input terminal, a third input terminal and a fourth input terminal of the signal processing chip are respectively connected to the control module to receive the working parameters; The first output terminal, the second output terminal, the third output terminal and the fourth output terminal of the signal processing chip are respectively connected to the stepping motor to send the execution signal to the stepping motor.

8. The tower fan control device according to claim 3, characterized in that: The input module includes a first input unit, a second input unit, a third input unit and a fourth input unit, wherein: The second input unit is connected to the first input unit and the third input unit respectively, and the fourth input unit is connected to the third input unit, the air supply module and the conversion module respectively; The first input unit is used to filter out high-frequency noise signals in the power supply to obtain a third direct current; The second input unit is used to filter out abnormal high voltage signals in the third direct current to obtain a fourth direct current; The third input unit is used to filter out the electromagnetic wave signal in the fourth direct current to obtain a fifth direct current; The fourth input unit is used for smoothing the fifth direct current to obtain the first direct current.

9. The tower fan control device according to claim 8, characterized in that: The first input unit includes a first input capacitor, a second input capacitor, a first magnetic bead and a second magnetic bead, two ends of the first input capacitor are respectively connected to one end of the first magnetic bead and one end of the second magnetic bead, two ends of the second input capacitor are respectively connected to the other end of the first magnetic bead and the other end of the second magnetic bead, and two ends of the second input capacitor are respectively connected to the second input unit; The second input unit includes an input diode and a fuse, the two ends of the input diode are respectively connected to the two ends of the second input capacitor, the cathode of the input diode is also connected to one end of the fuse, the other end of the fuse is connected to the third input unit, and the anode of the input diode is used for grounding; The third input unit includes a third input capacitor, a common mode inductor and a fourth input capacitor, one end of the third input capacitor is respectively connected to the other end of the fuse and the first end of the common mode inductor, the other end of the third input capacitor is respectively connected to the anode of the input diode and the second end of the common mode inductor, two ends of the fourth input capacitor are respectively connected to the third end and the fourth end of the common mode inductor, and two ends of the fourth input capacitor are respectively connected to the fourth input unit; The fourth input unit includes a fifth input capacitor and a sixth input capacitor, the two ends of the fifth input capacitor are respectively connected to the two ends of the sixth input capacitor, and the positive electrode of the fifth input capacitor is also respectively connected to the conversion module and the air supply module.

10. The tower fan control device according to claim 3, characterized in that: The conversion module includes a conversion protection circuit, a voltage output circuit and a voltage processing circuit, wherein: The conversion protection circuit is connected to the input module and the voltage output circuit respectively, and the voltage processing circuit is connected to the voltage output circuit and the control module respectively; The conversion protection circuit is used to control the working state of the voltage output circuit according to the voltage of the first direct current and a preset voltage value; The voltage output circuit is used for converting the first direct current into a sixth direct current when the voltage of the first direct current is greater than the preset voltage value; The voltage processing circuit is used for smoothing the sixth direct current to obtain the second direct current.

11. The tower fan control device according to claim 10, characterized in that: The conversion protection circuit comprises a first conversion resistor and a second conversion resistor, one end of the first conversion resistor is connected to the input module and the voltage output circuit respectively, the other end of the first conversion resistor is connected to one end of the second conversion resistor and the voltage output circuit respectively, and the other end of the second conversion resistor is used for grounding; The voltage output circuit includes a step-down chip, a first conversion capacitor, a first conversion inductor, a third conversion resistor, a fourth conversion resistor and a second conversion capacitor, wherein a first end of the step-down chip is connected to one end of the first conversion capacitor, a second end of the step-down chip is connected to the other end of the second conversion resistor, a third end of the step-down chip is respectively connected to the other end of the third conversion resistor, one end of the fourth conversion resistor and the other end of the second conversion capacitor, a fourth end of the step-down chip is connected to the other end of the first conversion resistor, a fifth end of the step-down chip is connected to one end of the first conversion resistor, a sixth end of the step-down chip is respectively connected to the other end of the first conversion capacitor and one end of the first conversion inductor, the other end of the first conversion inductor is respectively connected to one end of the third conversion resistor, one end of the second conversion capacitor and the voltage processing circuit, and the other end of the fourth conversion resistor is used for grounding; The voltage processing circuit includes a third conversion capacitor, a fourth conversion capacitor and a conversion diode. One end of the third conversion capacitor is connected to one end of the second conversion capacitor, the other end of the third conversion capacitor is connected to the other end of the fourth conversion resistor, the two ends of the fourth conversion capacitor and the two ends of the conversion diode are respectively connected to the two ends of the third conversion capacitor, and the two ends of the conversion diode are also connected to the control module.

12. An air supply device, characterized in that: It comprises a tower fan and a tower fan control device as claimed in any one of claims 1 to 11, wherein: The tower fan is used to rotate according to the control of the tower fan control device.

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