A fan control system

Abstract

The utility model discloses a fan control system. The fan includes a fan blade, a front cover and a side cover. The front cover is arranged on the front side of the fan blade, and the side cover is arranged on the side of the fan blade. The control system includes a first control circuit, a second control circuit, a first magnetic communication circuit and a second magnetic communication circuit. The first control circuit and the first magnetic communication circuit are arranged on the side cover, the second control circuit and the second magnetic communication circuit are arranged on the front cover, the first magnetic communication circuit and the second magnetic communication circuit are oppositely arranged and magnetically connected when the front cover and the side cover are assembled. When the first control circuit receives the communication signal of the second control circuit, it controls the fan to work. When no communication signal is received, the fan stops working. When the front cover and the side cover are separated, the first magnetic communication circuit and the second magnetic communication circuit are disconnected, the first control circuit controls the fan to stop working, the risk of the fan continuing to work due to accidental touch is reduced, and the safety of the fan is improved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent control technology, and in particular to a fan control system. Background Technology

[0002] With the development of smart home technology, fans have been upgraded from traditional mechanical operation to intelligent and multifunctional operation, and their application scenarios cover multiple fields such as home, office, and commerce.

[0003] Some existing fan products employ a detachable enclosure structure to meet users' cleaning or maintenance needs. For example, separating the front and side covers allows for internal cleaning or structural adjustments, improving product usability and ease of maintenance. However, existing control systems typically rely on conventional switches (such as buttons) to control fan start and stop. When users remove the front or side covers for dust cleaning or component replacement, if a remote control button or physical switch is accidentally pressed, the fan motor may still start and continue to rotate, leaving the exposed fan blades unprotected.

[0004] The safety of disassembling the front or side covers of the aforementioned fan products is relatively low. Utility Model Content

[0005] This invention provides a fan control system to improve the safety of the fan when removing the front or side cover.

[0006] According to one aspect of the present invention, a fan control system is provided for controlling a fan; the fan includes fan blades, a front cover and a side cover, the front cover being disposed on the front side of the fan blades and the side cover being disposed on the side of the fan blades; the control system includes a first control circuit, a second control circuit, a first magnetic attraction communication circuit and a second magnetic attraction communication circuit.

[0007] The first control circuit and the first magnetic communication circuit are disposed on the side cover, and the second control circuit and the second magnetic communication circuit are disposed on the front cover. The first control circuit and the first magnetic communication circuit are communicatively connected. The first magnetic communication circuit and the second magnetic communication circuit are disposed opposite to each other and are magnetically connected when the front cover and the side cover are assembled.

[0008] The second magnetic communication circuit is connected to the second control circuit. The first control circuit controls the fan to work normally when it receives a communication signal provided by the second control circuit, and controls the fan to stop working when it does not receive a communication signal.

[0009] Optionally, the side cover includes an outer cover and an inner wall, with the inner wall disposed between the fan blade and the outer cover; a first magnetic communication circuit is disposed on the outer cover, and a first control circuit is disposed on the inner wall, located on the side of the inner wall away from the fan blade.

[0010] Optionally, the fan also includes a rear cover, a front cover that snaps into an outer cover, and an outer cover that snaps into a rear cover.

[0011] Optionally, the first magnetic communication circuit includes a first power supply terminal, a first ground terminal, a first input interface, and a first output interface, and the second magnetic communication circuit includes a second power supply terminal, a second ground terminal, a second output interface, and a second input interface. The first power supply terminal and the second power supply terminal are positioned relative to each other, the first ground terminal and the second ground terminal are positioned relative to each other, the first input interface and the second output interface are positioned relative to each other, and the first output interface and the second input interface are positioned relative to each other.

[0012] Optionally, the first control circuit includes a first control unit and a main motor control circuit. The first control unit is communicatively connected to a first magnetic communication circuit, and the main motor control circuit is connected to a first output terminal of the first control unit. The first control unit is used to generate a first control signal when it receives a communication signal, and the main motor control circuit is used to control the main motor of the fan to work according to the first control signal. The first control unit is also used to generate a second control signal when it does not receive a communication signal, and the main motor control circuit is used to control the main motor of the fan to stop working according to the second control signal.

[0013] Optionally, the first control circuit may further include an up-and-down oscillation circuit;

[0014] The up-and-down oscillation circuit is connected to the second output terminal of the first control unit. The first control unit generates a third control signal when it receives a communication signal. The up-and-down oscillation circuit controls the up-and-down oscillation motor to work according to the third control signal of the first control unit. The first control unit also generates a fourth control signal when it does not receive a communication signal. The up-and-down oscillation circuit also controls the up-and-down oscillation motor to stop working according to the fourth control signal of the first control unit.

[0015] Optionally, the first control circuit also includes a left and right swaying circuit;

[0016] The left and right swaying circuit is connected to the third output terminal of the first control unit. The first control unit generates a fifth control signal when it receives a communication signal. The left and right swaying circuit controls the left and right swaying motors to work according to the fifth control signal of the first control unit. The first control unit generates a sixth control signal when it does not receive a communication signal. The left and right swaying circuit also controls the left and right swaying motors to stop working according to the sixth control signal of the first control unit.

[0017] Optionally, the fan control system also includes a first circuit board, on which the first control circuit is integrated.

[0018] Optionally, the second control circuit includes a second control unit and a display circuit. The second control unit is communicatively connected to the second magnetic communication circuit. The second control unit is used to generate communication signals according to user instructions, and to generate temperature display signals and wind speed level display signals according to the temperature signal and wind speed level signal sent by the first control unit, respectively.

[0019] The display circuit is connected to the output of the second control unit and is used to display the temperature display signal and the wind speed level display signal.

[0020] Optionally, the fan control system also includes a second circuit board, on which the second control circuit is integrated.

[0021] The technical solution of this utility model embodiment involves placing a first control circuit and a first magnetic communication circuit on the side cover, and a second control circuit and a second magnetic communication circuit on the front cover. The first control circuit and the first magnetic communication circuit are communicatively connected, and the first and second magnetic communication circuits are arranged opposite to each other. They are magnetically connected when the front cover and side cover are assembled, and the second magnetic communication circuit is communicatively connected to the second control circuit. In this technical solution, when the fan front cover and fan side cover are assembled, the first magnetic communication circuit and the second magnetic communication circuit are connected, and the first control circuit can receive communication signals sent by the second control circuit to control the fan to work. When the fan front cover and fan side cover are separated, the first magnetic communication circuit and the second magnetic communication circuit are disconnected, and the first control circuit cannot receive communication signals from the second control circuit, thus controlling the fan to stop working. This reduces the risk of the fan continuing to work due to accidental contact when the fan front cover is removed, and improves the safety of the fan.

[0022] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of a fan control system provided in an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of another fan control system provided in an embodiment of the present invention;

[0026] Figure 3 A partial structural schematic diagram of a fan control system provided for an embodiment of this utility model;

[0027] Figure 4 A schematic diagram of another fan control system provided in this embodiment of the present utility model;

[0028] Figure 5 Schematic diagrams of the first and second magnetic communication circuits provided in the embodiments of this utility model;

[0029] Figure 6 A schematic diagram of the structure of the first control circuit provided in an embodiment of this utility model;

[0030] Figure 7 A schematic diagram of another first control circuit provided in an embodiment of this utility model;

[0031] Figure 8 A schematic diagram of another first control circuit provided in an embodiment of this utility model;

[0032] Figure 9 A schematic diagram of another first control circuit provided in an embodiment of this utility model;

[0033] Figure 10 A schematic diagram of another first control circuit provided in an embodiment of this utility model;

[0034] Figure 11 A schematic diagram of the power supply circuit provided in an embodiment of this utility model;

[0035] Figure 12 This is a schematic diagram of the structure of the second control circuit provided in an embodiment of the present invention;

[0036] Figure 13 A schematic diagram of another second control circuit provided in an embodiment of this utility model;

[0037] Figure 14 This is a schematic diagram of another fan control system provided in an embodiment of the present utility model. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0040] Figure 1 This is a schematic diagram of a fan control system provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of another fan control system provided in an embodiment of the present invention. Figure 3 This is a partial structural diagram of a fan control system provided in an embodiment of the present utility model. Figure 4 This is a schematic diagram of another fan control system provided in an embodiment of the present invention. This embodiment is applicable to situations where the user controls the fan to start or stop via operation. For example, when the user removes the fan front cover, the control system controls the fan to stop operating to ensure safety.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the fan includes fan blades, a front cover 110, and a side cover. The front cover 110 is disposed on the front side of the fan blades, and the side cover is disposed on the side of the fan blades. The control system includes a first control circuit 130, a second control circuit 140, a first magnetic attraction communication circuit 150, and a second magnetic attraction communication circuit 160.

[0042] The first control circuit 130 and the first magnetic communication circuit 150 are disposed on the side cover, and the second control circuit 140 and the second magnetic communication circuit 160 are disposed on the front cover 110. The first control circuit 130 is communicatively connected to the first magnetic communication circuit 150. The first magnetic communication circuit 150 and the second magnetic communication circuit 160 are disposed opposite to each other and are magnetically connected when the front cover 110 and the side cover are assembled.

[0043] The second magnetic communication circuit 160 is communicatively connected to the second control circuit 140. The first control circuit 130 is used to control the fan to work normally when it receives a communication signal provided by the second control circuit 140, and to control the fan to stop working when it does not receive a communication signal.

[0044] In this embodiment, the first control circuit 130 refers to a circuit capable of receiving signals and sending commands. The first control circuit 130 is mounted on the side cover, for example, it can be mounted on the outer side of the fan side cover. The fan side cover is recessed towards the inside of the fan blades at the mounting location of the first control circuit 130. The first magnetic communication circuit 150 refers to a circuit that can be connected to other circuits and communicate signals via magnetic attraction. The first magnetic communication circuit 150 is mounted on the side cover, for example, it can be mounted on the edge of the side cover.

[0045] The second control circuit 140 is a circuit that can receive signals and send commands. The second control circuit 140 is installed on the fan front cover 110, for example, at the center of the inner side of the fan front cover 110. The second magnetic communication circuit 160 is a circuit that can be connected to other circuits and communicate signals via magnetic attraction. The second magnetic communication circuit 160 is installed on the fan front cover 110, for example, at the inner edge of the fan front cover 110.

[0046] Specifically, the fan control system consists of a fan and a control system. A first control circuit 130 and a first magnetic communication circuit 150 are mounted on the side cover of the fan. The first control circuit 130 can wirelessly transmit data to the first magnetic communication circuit 150, and the first magnetic communication circuit 150 can also wirelessly transmit data to the first control circuit 130. A second control circuit 140 and a second magnetic communication circuit 160 are mounted on the front cover 110 of the fan. The second control circuit 140 can wirelessly transmit data to the second magnetic communication circuit 160, and the second magnetic communication circuit 160 can also wirelessly transmit data to the second control circuit 140. The first magnetic communication circuit 150 and the second magnetic communication circuit 160 are respectively disposed opposite to each other on the side cover and the front cover 110. When the fan front cover 110 and the side cover are assembled, the first magnetic communication circuit 150 and the second magnetic communication circuit 160 are connected by magnetic attraction to form a magnetic communication circuit 10. After the magnetic communication circuit 10 is formed, the first magnetic communication circuit 150 and the second magnetic communication circuit 160 can communicate with each other via input / output (IO). The second control circuit 140 can send communication signals. After the front cover 110 and the side cover are assembled, the communication signal can be transmitted through the second magnetic communication circuit 160 to the first magnetic communication circuit 150, and then from the first magnetic communication circuit 150 to the first control circuit 130. After receiving the communication signal, the first control circuit 130 can control the fan to start working. When the current cover 110 is separated from the side cover, the first magnetic communication circuit 150 and the second magnetic communication circuit 160 cannot communicate with each other. The first control circuit 130 cannot receive the communication signal sent by the second control circuit 140, and the control fan does not work at this time.

[0047] According to the technical solution of this utility model embodiment, by setting the first control circuit and the first magnetic communication circuit on the side cover, and setting the second control circuit and the second magnetic communication circuit on the front cover, the first control circuit and the first magnetic communication circuit are communicatively connected. The first magnetic communication circuit and the second magnetic communication circuit are arranged opposite to each other and magnetically connected when the front cover and the side cover are assembled. The second magnetic communication circuit is communicatively connected to the second control circuit. In this utility model's technical solution, when the fan front cover and the fan side cover are assembled, the first magnetic communication circuit and the second magnetic communication circuit are connected, and the first control circuit can receive the communication signal sent by the second control circuit to control the fan to work. When the fan front cover and the fan side cover are separated, the first magnetic communication circuit and the second magnetic communication circuit are disconnected, and the first control circuit cannot receive the communication signal from the second control circuit, thus controlling the fan not to work. This reduces the risk of the fan continuing to work due to accidental contact when the fan front cover is removed, and improves the fan's safety.

[0048] Optionally, the side cover includes an outer cover 121 and an inner wall 120, with the inner wall 120 disposed between the fan blade and the outer cover 121; a first magnetic communication circuit 150 is disposed on the outer cover 121, and a first control circuit 130 is disposed on the inner wall 120 and located on the side of the inner wall 120 away from the fan blade.

[0049] Specifically, the side cover includes an inner wall 120 and an outer cover 121. The inner wall 120 is located between the fan blades and the outer cover 121 and is used to support the hardware structure of the first control circuit 130. The outer cover 121 is a cylindrical structure that surrounds the inner wall and is used to protect the internal structure of the fan and improve the aesthetics of the product.

[0050] Optionally, the fan also includes a rear cover, with the front cover 110 fastened to the outer cover 121, and the outer cover 121 fastened to the rear cover.

[0051] The fastening refers to assembling objects together using matching clips and slots. For example, the front cover 110 of the fan has clips and the side cover has slots. By aligning the clips and slots, the clips are pressed into the slots to complete the installation. Usually, positioning holes and positioning posts can be used as auxiliary structures to fix the front cover and side cover, thereby improving safety.

[0052] Specifically, the upper and lower sides of the cylindrical structure of the outer cover 121 have buckles, the edge of the front cover 110 has a groove, the edge of the rear cover has a groove, and the outer cover 121 is fastened to the front cover 110 and the rear cover respectively.

[0053] Figure 5 A schematic diagram of the structure of the first magnetic communication circuit and the second magnetic communication circuit provided in the embodiments of this utility model is shown below. Figure 5As shown, optionally, the first magnetic communication circuit 150 includes a first power supply terminal a1, a first ground terminal a2, a first input interface a3, and a first output interface a4, and the second magnetic communication circuit 160 includes a second power supply terminal b1, a second ground terminal b2, a second output interface b3, and a second input interface b4. The positions of the first power supply terminal a1 and the second power supply terminal b1 are arranged opposite to each other, the positions of the first ground terminal a2 and the second ground terminal b2 are arranged opposite to each other, the positions of the first input interface a3 and the second output interface b3 are arranged opposite to each other, and the positions of the first output interface a4 and the second input interface b4 are arranged opposite to each other.

[0054] The first power supply terminal a1 supplies power to the first magnetic communication circuit 150 at a voltage of 5V. The first ground terminal a2 is the grounding port of the first magnetic communication circuit 150, used to establish a stable potential reference point and ensure the stable operation of the first magnetic communication circuit. The first input interface a3 is the data receiving port of the first magnetic communication circuit 150, and the first output interface a4 is the data transmitting port of the first magnetic communication circuit 150. The second power supply terminal b1 supplies power to the second magnetic communication circuit 160 at a voltage of 5V. The second ground terminal b2 is the grounding port of the second magnetic communication circuit 160, used to establish a stable potential reference point and ensure the stable operation of the second magnetic communication circuit. The second output interface b3 is the data transmitting port of the second magnetic communication circuit 160, and the second input interface b4 is the data receiving port of the second magnetic communication circuit 150.

[0055] Specifically, the first power supply terminal a1 and the second power supply terminal b1 are in relative positions, the first ground terminal a2 and the second ground terminal b2 are in relative positions, the first input interface a3 and the second output interface b3 are in relative positions, the first output interface a4 and the second input interface b4 are in relative positions, and when the first magnetic communication circuit 150 and the second magnetic communication circuit 160 are connected, the second input interface b4 receives the communication signal sent by the second control circuit and sends it to the first input interface a3 through the second output interface b3, and the first output interface a4 sends the communication signal to the first control circuit.

[0056] Figure 6 A schematic diagram of the structure of the first control circuit provided in the embodiment of this utility model is shown below. Figure 6As shown, optionally, the first control circuit 130 includes a first control unit 131 and a main motor control circuit 132. The first control unit 131 is communicatively connected to the first magnetic communication circuit, and the main motor control circuit 132 is connected to the first output terminal P2.7 of the first control unit 131. The first control unit 131 generates a first control signal when it receives a communication signal, and the main motor control circuit 132 controls the main motor of the fan to work according to the first control signal. The first control unit 131 is also used to generate a second control signal when it does not receive a communication signal, and the main motor control circuit 132 controls the main motor of the fan to stop working according to the second control signal.

[0057] The first control unit 131 is an electronic device that controls the fan to operate or not operate based on communication signals; for example, it can be a microcontroller unit. The first control unit 131 can receive communication signals sent by the second control circuit through a first magnetic communication circuit, and generate a first control signal and a second control signal based on the communication signals to control the operating state of the fan.

[0058] The main motor control circuit 132 is a circuit that controls the working state of the main motor of the fan according to the first control signal and the second control signal. The main motor control circuit 132 includes a first terminal CN5, which is connected to the main motor of the fan. The first control unit 131 can control the start or stop of the main motor through the main motor control circuit 132.

[0059] Specifically, the first input interface of the first magnetic communication circuit is connected to port P1.2 of the first control unit 131, and the first output interface is connected to port P1.3 of the first control unit 131. The first control unit 131 can receive data or signals from the first magnetic communication circuit through port P1.3 and can send data or signals to the first magnetic communication circuit through port P1.2. The main motor control circuit 132 is connected to the first output terminal of the first control unit 131, specifically to port P2.7 of the first control unit 131. The first control unit 131 can send a first control signal and a second control signal to the main motor control circuit 132 through port P2.7. When the first control unit 131 receives a communication signal, it sends a first control signal to the main motor control circuit 132 to start the main motor of the fan. When the first control unit 131 does not receive a communication signal, it sends a second control signal to the main motor control circuit 132 to stop the main motor of the fan.

[0060] Figure 7 A schematic diagram of another first control circuit provided in an embodiment of this utility model is shown below. Figure 7 As shown, optionally, the first control circuit 130 also includes an up-and-down oscillation circuit 133;

[0061] The up-and-down oscillation circuit 133 is connected to the second output terminal of the first control unit 131. The first control unit 131 generates a third control signal when it receives a communication signal. The up-and-down oscillation circuit 133 controls the up-and-down oscillation motor to work according to the third control signal of the first control unit 131. The first control unit 131 also generates a fourth control signal when it does not receive a communication signal. The up-and-down oscillation circuit 133 also controls the up-and-down oscillation motor to stop working according to the fourth control signal of the first control unit 131.

[0062] The up-and-down oscillation circuit 133 is a circuit that controls whether the fan performs up-and-down oscillation. The up-and-down oscillation circuit 133 includes a first drive chip U1 and a second terminal CN1. The second terminal CN1 is connected to the up-and-down oscillation motor of the fan. The first drive chip U1 is used to receive the third control signal and the fourth control signal from the first control unit 131 to drive the up-and-down oscillation motor to start or stop.

[0063] Specifically, the up-and-down oscillation circuit 133 is connected to the second output terminal of the first control unit 131. Specifically, the first input terminal 1B of the first driver chip U1 can be connected to the P1.0 port of the first control unit 131, the second input terminal 2B of the first driver chip U1 can be connected to the P5.1 port of the first control unit 131, the third input terminal 3B of the first driver chip U1 can be connected to the P5.0 port of the first control unit 131, and the fourth input terminal 4B of the first driver chip U1 can be connected to the P1.1 port of the first control unit 131. The output terminal of the first driver chip U1 is connected to the second terminal CN1, where 24VIN indicates a 24V voltage, GND indicates ground, and +5V indicates a 5V voltage. When the first control unit 131 receives a communication signal, it sends a third control signal to the first driver chip U1, which then drives the up-and-down oscillation motor to start. When the first control unit 131 does not receive a communication signal, it sends a fourth control signal to the first driver chip U1, which then stops the up-and-down oscillation motor. Optionally, the output terminal of the up-and-down oscillation circuit 133 is connected to the P2.6 port of the first control unit 131. The up-and-down oscillation circuit 133 can feed back the status signal AD_Current of the up-and-down oscillation motor to the first control unit 131. For example, when the up-and-down oscillation motor experiences abnormal phenomena such as stalling, the status signal sent by the up-and-down oscillation circuit 133 to the first control unit 131 is the first abnormal signal AD_Current.

[0064] Figure 8 A schematic diagram of another first control circuit provided in an embodiment of this utility model is shown below. Figure 8 As shown, optionally, the first control circuit 130 also includes a left and right head-shaking circuit 134;

[0065] The left and right swaying circuit 134 is connected to the third output terminal of the first control unit 131. The first control unit 131 generates a fifth control signal when it receives a communication signal. The left and right swaying circuit 134 controls the left and right swaying motors to work according to the first control signal of the first control unit 131. The first control unit 131 generates a sixth control signal when it does not receive a communication signal. The left and right swaying circuit 134 also controls the left and right swaying motors to stop working according to the sixth control signal of the first control unit 131.

[0066] The left and right oscillation circuit 134 is a circuit that controls whether the fan performs left and right oscillation actions. The left and right oscillation circuit 134 includes a second drive chip U6 and a third terminal CN2. The third terminal CN2 is connected to the left and right oscillation motor of the fan. The second drive chip U6 is used to receive the fifth control signal and the sixth control signal from the first control unit 131 to drive the left and right oscillation motor to start or stop.

[0067] Specifically, the left and right swaying circuit 134 is connected to the third output terminal of the first control unit 131. Specifically, the first input terminal 8B of the second driver chip U6 can be connected to the P1.7 port of the first control unit 131, the second input terminal 9B of the second driver chip U6 can be connected to the P1.6 port of the first control unit 131, the third input terminal 10B of the second driver chip U6 can be connected to the P1.5 port of the first control unit 131, and the fourth input terminal 11B of the second driver chip U6 can be connected to the P1.4 port of the first control unit 131. The output terminal of the second driver chip U6 is connected to the third terminal CN2, where 24VIN indicates a 24V voltage and +5V indicates a 5V voltage. When the first control unit 131 receives a communication signal, it sends a fifth control signal to the second driver chip U6, which then drives the left and right swaying motors to start. When the first control unit 131 does not receive a communication signal, it sends a sixth control signal to the second driver chip U6, which then stops the left and right swaying motors. Optionally, the output terminal of the left and right oscillation circuit 134 is connected to the P2.5 port of the first control unit 131. The left and right oscillation circuit 134 can feed back the status signal AD_Current1 of the left and right oscillation motor to the first control unit 131. For example, when the left and right oscillation motor experiences abnormal phenomena such as stalling, the status signal sent by the left and right oscillation circuit 134 to the first control unit 131 is the second abnormal signal AD_Current1.

[0068] Figure 9 A schematic diagram of another first control circuit provided in an embodiment of this utility model is shown below. Figure 9As shown, optionally, the first control circuit 130 further includes a button circuit 135. The button circuit 135 is connected to the first input terminal of the first control unit 131. For example, the first output terminal key1 of the button circuit 135 can be connected to the P0.2 port of the first control unit 131, the second output terminal key2 of the button circuit 135 can be connected to the P0.3 port of the first control unit 131, the third output terminal key3 of the button circuit 135 can be connected to the P0.4 port of the first control unit 131, the fourth output terminal key4 of the button circuit 135 can be connected to the P0.1 port of the first control unit 131, the fifth output terminal key5 of the button circuit 135 can be connected to the P0.0 port of the first control unit 131, the sixth output terminal key6 of the button circuit 135 can be connected to the P2.2 port of the first control unit 131, the seventh output terminal key7 of the button circuit 135 can be connected to the P2.3 port of the first control unit 131, and the eighth output terminal key8 of the button circuit 135 can be connected to the P2.1 port of the first control unit 131. GND represents ground.

[0069] The button circuit 135 includes multiple buttons, such as a fan switch button, a fan speed level button, an up / down oscillation button, and a left / right oscillation button. When the user presses the switch button and the first control unit 131 receives a communication signal, the first control unit 131 can control the fan to work. When the user presses the fan speed level button and the first control unit 131 receives a communication signal, the first control unit 131 can control the fan speed level. When the user selects the up / down oscillation button or the left / right oscillation button and the first control unit 131 receives a communication signal, the first control unit 131 controls the fan to oscillate up / down or left / right.

[0070] Figure 10 A schematic diagram of another first control circuit provided in an embodiment of this utility model is shown below. Figure 10 As shown, optionally, the first control circuit 130 further includes a temperature detection circuit 136. The output terminal of the temperature detection circuit 136 is connected to the P2.4 port of the first control unit 131. The temperature detection circuit 136 includes a thermistor, which can detect the ambient temperature and convert it into an electrical signal NTC1, which is then input to the first control unit 131.

[0071] Optionally, the first control circuit 130 further includes a light strip driving circuit 137. The light strip driving circuit 137 includes a third driving chip U2 and a fourth terminal CN3. The fourth terminal CN3 is connected to the fan's light strip. The first input terminal 5B of the third driving chip U2 is connected to the P0.5 port of the first control unit 131. The second input terminal 6B of the third driving chip U2 is connected to the P0.6 port of the first control unit 131. The third input terminal 7B of the third driving chip U2 is connected to the P0.7 port of the first control unit 131. When the first control unit 131 receives a communication signal, it sends a seventh control signal to the third driving chip U3. The third driving chip U3 controls the light strip's illumination effect according to the seventh control signal. 24VIN indicates an input 24V voltage, and GND indicates grounding.

[0072] Figure 11 A schematic diagram of the power supply circuit provided in the embodiment of this utility model is shown below. Figure 11 As shown, optionally, the first control circuit also includes a power supply circuit 138. An external 24V DC power supply is input through the DC1 interface to provide energy to the first control circuit. The power supply circuit 138 includes a switching power supply chip U3, which gradually reduces the 24V input voltage by switching the internal high-frequency switching transistor on and off, converting the input high-voltage DC power into a stable low-voltage DC power, and providing a 5V operating voltage for each circuit in the first control circuit.

[0073] Optionally, the fan control system also includes a first circuit board, on which the first control circuit is integrated.

[0074] The first control circuit is integrated onto the first circuit board, which improves the reliability of the first control circuit and optimizes the space of the first control circuit. The first circuit board is small in size and easy to install onto the side wall of the fan.

[0075] Figure 12 A schematic diagram of the structure of the second control circuit provided in the embodiment of this utility model is shown below. Figure 12 As shown, optionally, the second control circuit 140 includes a second control unit 141 and a display circuit 142. The second control unit 141 is communicatively connected to the second magnetic communication circuit. The second control unit 141 is used to generate a communication signal according to the user's instructions, and to generate a temperature display signal and a wind speed level display signal according to the temperature signal and wind speed level signal sent by the first control unit, respectively.

[0076] The display circuit 142 is connected to the output terminal of the second control unit 141 and is used to display the temperature display signal and the wind speed level display signal.

[0077] In this context, the user instruction refers to a command signal issued by the user to the second control circuit 141 through an operating device, which carries a specific requirement or operational intention. The operating device can be an application program or a remote control, etc. The display circuit 142 is a circuit that converts electrical signals into visual information that the user can see intuitively. The electrical signal can be a temperature display signal or a wind speed level display signal converted by the second control unit 141 from the temperature signal or wind speed level signal sent by the first control unit.

[0078] Specifically, if the first magnetic communication circuit and the second magnetic communication circuit are connected, the first control unit transmits temperature signals, wind speed level signals, on / off status signals, up / down oscillation mode signals, and left / right oscillation mode signals to the second control unit 141. The second control unit 141 generates temperature display signals, wind speed level display signals, on / off status display signals, up / down oscillation mode display signals, and left / right oscillation mode display signals. The input terminal of the display circuit 142 is connected to the P3.0 port of the second control unit 141. The display circuit 142 includes a display screen, which can display temperature, wind speed level, on / off status, up / down oscillation mode, and left / right oscillation mode based on the temperature display signals, wind speed level, on / off status, up / down oscillation mode, and left / right oscillation mode display signals. The second control unit 141 can also generate display signals based on user operations via remote control or application, displaying wind speed level, on / off status, up / down oscillation mode, and left / right oscillation mode on the display screen.

[0079] Optionally, the second control circuit also includes a Wireless Fidelity (WIFI) power supply module 143 and a WIFI module 144. The input terminal of the WIFI power supply module is connected to the P2.2 port of the second control unit 141. The second control unit 141 provides an enable signal to the WIFI power supply module to control the conduction state of the WIFI power supply module 143. The WIFI power supply module 144 provides power to the WIFI module 144, realizing the switching control of the WIFI module. U100 is a voltage conversion chip. The WIFI module 144 includes a fifth terminal WIFI1, which can be connected to a terminal, for example, it can be connected to an application. The output of the WIFI module 144 is connected to the P0.5 port of the second control unit 141, and the input of the WIFI module 144 is connected to the P0.6 port of the second control unit 141. The WIFI module 144 sends the signal RXD-WIFI to the second control unit 141 through the P0.5 port, and receives the signal TXD-WIFI from the second control unit 141 through the P0.6 port. The WIFI module 144 connects to the application program, allowing the user to operate the fan via the application. CND indicates ground, +3.3V indicates 3.3V voltage, and +5V indicates 5V voltage.

[0080] For example, the user can control the fan's on / off state, fan speed level, and fan oscillation mode (up / down or left / right). User commands are input to the second control unit 141 via the WIFI module 144. The second control unit 141 generates a communication signal. If the first magnetic communication circuit and the second magnetic communication circuit are connected, the communication signal can be transmitted to the first control unit, which then controls the fan to perform the corresponding actions. If the first magnetic communication circuit and the second magnetic communication circuit are not connected, the communication signal cannot be transmitted to the first control unit, and the first control unit controls the fan's main motor to stop working, as well as the up / down and left / right oscillation motors.

[0081] Figure 13 A schematic diagram of another second control circuit provided in an embodiment of this utility model is shown below. Figure 13 As shown, optionally, the second control circuit 140 further includes a remote control module 145. The remote control module 145 includes a sixth terminal CN101, which can be connected to a gyroscope. The gyroscope is configured inside the remote control. The input terminal of the remote control module 145 is connected to the P2.1 port of the second control unit 141, and the output terminal of the remote control module 145 is connected to the P2.0 port of the second control unit 141. It can receive the signal EN from the second control unit 141 through the P2.1 port and send the signal DOUT to the second control unit 141 through the P2.0 port. The user can control the fan by inputting user commands through the remote control. For example, the user can control the fan's on / off status, fan speed, and oscillation mode (up / down or left / right) via a remote control. User commands are input to the second control unit 141 through the remote control module 145. The second control unit 141 generates a communication signal. If the first and second magnetic communication circuits are connected, the communication signal can be transmitted to the first control unit, which then controls the fan to perform the corresponding actions. If the first and second magnetic communication circuits are not connected, the communication signal cannot be transmitted to the first control unit, and the first control unit will disable the fan's main motor, as well as the up / down and left / right oscillation motors.

[0082] Optionally, the second control circuit 140 further includes a buzzer circuit 146. The input terminal of the buzzer circuit 146 is connected to the P4.0 port of the second control unit 141. The buzzer circuit 146 includes a buzzer BUZ1. When the button of the first control circuit is pressed, or the fan is operated through a remote control or application, the second control unit 141 generates an audible prompt signal BUZ. The audible prompt signal BUZ is input to the buzzer circuit 146, and the buzzer BUZ1 emits a prompt sound.

[0083] Optionally, the fan control system also includes a second circuit board, on which the second control circuit is integrated.

[0084] The second control circuit is integrated onto the second circuit board, which improves the reliability of the second control circuit and optimizes the space of the second control circuit. The second circuit board is small in size and easy to install onto the front cover of the fan.

[0085] Figure 14 A schematic diagram of another fan control system provided in this embodiment of the present invention is shown below. Figure 14 As shown, optionally, the first control circuit 130 includes a first control unit 131 and a main motor control circuit 132. The first control unit 131 is communicatively connected to the first magnetic communication circuit 150, and the main motor control circuit 132 is connected to the first output terminal of the first control unit 131. The first control unit 131 generates a first control signal when it receives a communication signal, and the main motor control circuit 132 controls the main motor of the fan to work according to the first control signal. The first control unit 131 is also used to generate a second control signal when it does not receive a communication signal, and the main motor control circuit 132 controls the main motor of the fan to stop working according to the second control signal.

[0086] Optionally, the first control circuit 130 further includes an up-and-down oscillation circuit 133; the up-and-down oscillation circuit 133 is connected to the second output terminal of the first control unit 131, and the up-and-down oscillation circuit 133 is used to control the up-and-down oscillation motor to work according to the third control signal of the first control unit 131, and the up-and-down oscillation circuit 133 is also used to control the up-and-down oscillation motor to stop working according to the fourth control signal of the first control unit 131.

[0087] Optionally, the first control circuit 130 further includes a left and right oscillation circuit 134; the left and right oscillation circuit 134 is connected to the third output terminal of the first control unit 131, and the left and right oscillation circuit 134 is used to control the left and right oscillation motors to work according to the first control signal of the first control unit 131, and the left and right oscillation circuit 134 is also used to control the left and right oscillation motors to stop working according to the second control signal of the first control unit 131.

[0088] Optionally, the first control circuit 130 further includes a button circuit 135, which is connected to the first control unit 131. The button circuit 135 includes multiple buttons, which can be used to control the fan's on / off state, fan speed level, up / down oscillation mode, and left / right oscillation mode.

[0089] Optionally, the first control circuit 130 further includes a temperature detection circuit 136, which is connected to the first control unit 131. The temperature detection circuit 136 includes a thermistor, which can detect the ambient temperature and convert it into an electrical signal that is input to the first control unit 131.

[0090] Optionally, the first control circuit 130 further includes a light strip driving circuit 137, which is connected to the first control unit 131. When the first control unit 131 receives a communication signal, it sends a seventh control signal to the third driving chip U3. The third driving chip U3 controls the light strip lighting effect of the fan according to the seventh control signal.

[0091] Optionally, the first control circuit also includes a power supply circuit 138, which converts the input high-voltage DC power into stable low-voltage DC power to provide a 5V operating voltage for each circuit in the first control circuit 130.

[0092] Optionally, the second control circuit 140 includes a second control unit 141 and a display circuit 142. The second control unit 141 is communicatively connected to the second magnetic communication circuit 160. The second control unit 141 is used to generate communication signals according to user instructions, and to generate temperature display signals and wind speed level display signals according to the temperature signal and wind speed level signal sent by the first control unit 131, respectively. The display circuit 142 is connected to the output terminal of the second control unit 141 and is used to display the temperature display signal and wind speed level display signal.

[0093] Optionally, the second control circuit 140 further includes a WIFI power supply module 143 and a WIFI module 144. The WIFI power supply module is connected to the second control unit 141, which provides an enable signal to the WIFI power supply module 143 to control its conduction state. The WIFI power supply module 144 provides power to the WIFI module 144, enabling on / off control of the WIFI module. The WIFI module 144 is connected to the second control unit 141, and can send and receive signals from the second control unit 141. Through the WIFI module 144, the user can connect to an application program to operate the fan.

[0094] Optionally, the second control circuit 140 further includes a remote control module 145, which includes a gyroscope that can be connected to the remote control. The gyroscope is configured in the remote control. The remote control module 145 is connected to the second control unit 141. The user can control the fan by inputting user commands through the remote control.

[0095] Optionally, the second control circuit 140 further includes a buzzer circuit 146, which includes a buzzer that emits a prompt sound when a button of the first control circuit is pressed or when the fan is operated via a remote control / application.

[0096] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0097] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fan control system for controlling a fan; characterized in that, The fan includes fan blades, a front cover, and a side cover. The front cover is disposed on the front side of the fan blades, and the side cover is disposed on the side of the fan blades. The control system includes a first control circuit, a second control circuit, a first magnetic attraction communication circuit, and a second magnetic attraction communication circuit. The first control circuit and the first magnetic communication circuit are disposed on the side cover, and the second control circuit and the second magnetic communication circuit are disposed on the front cover. The first control circuit is communicatively connected to the first magnetic communication circuit. The first magnetic communication circuit and the second magnetic communication circuit are disposed opposite to each other and are magnetically connected when the front cover and the side cover are assembled. The second magnetic communication circuit is communicatively connected to the second control circuit. The first control circuit is used to control the fan to work normally when it receives a communication signal provided by the second control circuit, and to control the fan to stop working when it does not receive the communication signal.

2. The fan control system according to claim 1, characterized in that, The side cover includes an outer cover and an inner wall, with the inner wall disposed between the fan blade and the outer cover; the first magnetic communication circuit is disposed on the outer cover, and the first control circuit is disposed on the inner wall and located on the side of the inner wall away from the fan blade.

3. The fan control system according to claim 2, characterized in that, The fan also includes a rear cover, the front cover is fastened to the outer cover, and the outer cover is fastened to the rear cover.

4. The fan control system according to claim 1, characterized in that, The first magnetic communication circuit includes a first power supply terminal, a first ground terminal, a first input interface, and a first output interface. The second magnetic communication circuit includes a second power supply terminal, a second ground terminal, a second output interface, and a second input interface. The first power supply terminal and the second power supply terminal are positioned opposite each other. The first ground terminal and the second ground terminal are positioned opposite each other. The first input interface and the second output interface are positioned opposite each other.

5. The fan control system according to claim 1, characterized in that, The first control circuit includes a first control unit and a main motor control circuit. The first control unit is communicatively connected to the first magnetic communication circuit. The main motor control circuit is connected to the first output terminal of the first control unit. The first control unit generates a first control signal when it receives the communication signal. The main motor control circuit controls the main motor of the fan to work according to the first control signal. The first control unit also generates a second control signal when it does not receive the communication signal. The main motor control circuit controls the main motor of the fan to stop working according to the second control signal.

6. The fan control system according to claim 5, characterized in that, The first control circuit also includes an up-and-down oscillation circuit; The up-and-down oscillation circuit is connected to the second output terminal of the first control unit. The first control unit generates a third control signal when it receives the communication signal. The up-and-down oscillation circuit controls the up-and-down oscillation motor to work according to the third control signal of the first control unit. The first control unit also generates a fourth control signal when it does not receive the communication signal. The up-and-down oscillation circuit also controls the up-and-down oscillation motor to stop working according to the fourth control signal of the first control unit.

7. The fan control system according to claim 5, characterized in that, The first control circuit also includes a left and right head-shaking circuit; The left and right swaying circuit is connected to the third output terminal of the first control unit. The first control unit generates a fifth control signal when it receives the communication signal. The left and right swaying circuit controls the left and right swaying motors to work according to the fifth control signal of the first control unit. The first control unit generates a sixth control signal when it does not receive the communication signal. The left and right swaying circuit also controls the left and right swaying motors to stop working according to the sixth control signal of the first control unit.

8. The fan control system according to claim 1, characterized in that, The fan control system also includes a first circuit board, on which the first control circuit is integrated.

9. The fan control system according to claim 5, characterized in that, The second control circuit includes a second control unit and a display circuit. The second control unit is communicatively connected to the second magnetic communication circuit. The second control unit is used to generate the communication signal according to the user's instructions, and to generate a temperature display signal and a wind speed level display signal according to the temperature signal and wind speed level signal sent by the first control unit, respectively. The display circuit is connected to the output terminal of the second control unit and is used to display the temperature display signal and the wind speed level display signal.

10. The fan control system according to claim 1, characterized in that, The fan control system also includes a second circuit board, on which the second control circuit is integrated.

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