TWI741324B - Fan having orientation sensing - Google Patents

Abstract

The present invention is a fan having orientation sensing, comprising a casing, a motor disposed within the casing, a orientation sensing unit, and a control unit, the orientation sensing unit detecting a first orientation of the casing and outputting a first sensing signal, the control unit having a controller electrically coupled to the orientation sensing unit and the motor, the controller receiving the first sensing signal according thereto to control the motor to perform a first operation mode. Through this design, an operation mode of the fan can be adjusted according to the orientation of the fan in the present invention.

Description

Multi-operation mode fan

The present invention relates to a multi-operation mode fan, and particularly to a multi-operation mode fan that can adjust the operation mode of the fan according to the direction of use.

Common electronic devices, such as servers, personal desktop computers, all-in-one computers (AIO), notebook computers, or monitors, have built-in cooling fans. The airflow generated by the cooling fans allows the electronic devices to operate. The generated heat escapes to the outside world. However, a single cooling fan in the prior art has only a single operation function in use, such as a function that the cooling fan can rotate up and down or the function that the cooling fan can rotate forward and backward. Therefore, when the user needs the cooling fan to have the function of speed up and down rotation and the function of forward and reverse rotation, it is necessary to purchase two cooling fan installations with different functions to use together, which leads to poor convenience in use and use Increased costs. In addition, some electronic devices (such as laptops, computers, tablets, smart mobile devices or smart watches) are thinner, which makes the space in the electronic device quite limited, making it impossible to install two devices at the same time. Cooling fans with different functions, so that users have to choose one function to use (such as the lifting function or the forward function or the reverse function) and give up the other function (such as the forward function or the reverse function or the lifting function) .

Although the industry has developed a cooling fan with two functions in order to solve the above-mentioned function of the cooling fan, another problem has been extended, that is, every time the user wants to switch the function of the current cooling fan, such as the lifting operation, to another cooling fan, such as For the forward rotation function, it is necessary to go through a lot of complicated locking steps, and a certain professional user is also able to switch the function of the cooling fan, such as professional users every time After an external computer spends a long time re-inputting a new command (such as a forward rotation function command) to the connected cooling fan, the input command must be tested to verify that the cooling fan can be switched to the forward rotation function. To switch back to the lift operation function, another related command must be input again. Moreover, most general users do not know how to input commands to the cooling fan to change the function of the cooling fan, which leads to poor user convenience and inability to switch the fan in real time. The function and function switching time is too long.

An object of the present invention is to provide a multi-operation mode fan that can adjust the operation mode effect of the fan according to the direction of use.

Another object of the present invention is to provide a fan that can switch the operation mode of the fan in real time, so as to effectively save the operation time of the operation mode switching and the multi-operation mode fan with good operation convenience.

To achieve the above objective, the present invention provides a fan with multiple operation modes, including a housing, a motor, a direction sensing unit, and a control unit. The motor is arranged in the housing, and the direction sensing unit is used for sensing. The housing is positioned on one of the mounting surfaces in the electronic device to correspondingly output a first sensing signal. The control unit has a controller that is electrically connected to the direction sensing unit and the motor, and the control The device controls the motor to execute a first operation mode according to receiving the first sensing signal; through the design of the multi-operation mode fan of the present invention, the effect of adjusting the operation mode of the fan according to the direction of use can be achieved, and the operation of the fan is also effectively saved Mode switching operation time and convenient operation with good effect.

1: fan

11: shell

111: The first mounting surface

112: second mounting surface

113: Third mounting surface

114: Fourth mounting surface

116: Axle seat

1161: Axle Barrel

13: accommodation space

15: Direction sensing unit

16: control unit

161: Controller

17: Motor

171: Rotor

1711: Axis

1712: Fan Wheel

1713: blade

1714: magnetic parts

173: Stator

18: circuit board

2: carrier

21: contact surface

Figure 1 is an exploded perspective view of an embodiment of the present invention.

Figure 2 is a three-dimensional assembly diagram of an embodiment of the present invention.

Figure 2A is a schematic cross-sectional view of an assembly of an embodiment of the present invention.

Figure 3 is a block diagram of an embodiment of the present invention.

Figure 4 is a schematic diagram of the fan of the present invention being turned over from one mounting surface to the other mounting surface.

The above-mentioned objects and structural and functional characteristics of the present invention will be described based on the preferred embodiments of the accompanying drawings.

The present invention provides a fan with multiple operation modes. Please refer to Figure 1 for a three-dimensional exploded schematic view of an embodiment of the present invention; Figure 2 is a three-dimensional assembly schematic view of an embodiment of the present invention; Figure 2A is one of the present invention. Fig. 3 is a schematic block diagram of an embodiment of the present invention; Fig. 4 is a schematic diagram of the implementation of the fan of the present invention inverted from one mounting surface to the other mounting surface. As shown in the figure, the fan 1 is represented as an axial fan in this embodiment, but it is not limited to this. In specific implementation, it can also be other fans (such as centrifugal fans, blower fans, or series fans). 1 includes a housing 11, a motor 17, a direction sensing unit 15 and a control unit 16. The housing 11 in this embodiment is roughly like a rectangular frame, and the housing 11 has a first mounting surface 111 , A second mounting surface 112, a third mounting surface 113 facing the first mounting surface 111, a fourth mounting surface 114 facing the second mounting surface 112, an accommodating space 13 and a shaft seat 116, The first, second, third, and fourth mounting surfaces 111, 112, 113, 114 are arranged along the outer peripheral side wall surface of the housing 11, and each of the different mounting surfaces (ie, the first, second, third, and fourth mounting surfaces 111, 112 , 113, 114) define the function (or operation mode) of each different output of the fan 1, so as to achieve the function of the directional fan 1, and also achieve the effect of preventing the fan 1 from being assembled. The shaft seat 116 is provided in the accommodating space 13, and the shaft seat 116 is located at the bottom of the housing 11 and is combined with the wall of the corresponding housing 11, and the shaft seat 116 is used for connecting to a shaft center 1711 of the motor 17 A circuit board 18 (a flexible printed circuit board 18 or a rigid printed circuit board 18) with a plurality of electronic components is connected to the shaft base 116, and the circuit board 18 is electrically connected to the motor 17. In addition, when the present invention is actually implemented, the mounting surface of the housing 11 is not limited to the above-mentioned four mounting surfaces. The number of is matched with the defined number of functions (or operation modes) output by the fan 1 and at the same time matched with the outer shape of the casing 11 of the fan 1.

Any one of the first, second, third, and fourth mounting surfaces 111, 112, 113, 114 is used for a contact surface 21 (such as electronic The wall surface of the device, server or communication equipment) is placed in contact with each other. The motor 17 is provided in the housing space 13 of the housing 11. The motor 17 is provided with a rotor 171 and a stator 173. The rotor 171 has a fan wheel 1712 composed of a plurality of blades 1713, a magnetic member 1714, and the aforementioned shaft One end of the shaft 1711 is fixed to the fan wheel 1712, the other end of the shaft 1711 is pivotally connected in the shaft tube 1161, and the stator 173 is sleeved on a shaft tube 1161 of the shaft base 116, And it induces stress magnetism with the magnetic member 1714 in the corresponding fan wheel 1712.

The direction sensing unit 15 is represented in this embodiment as an angular velocity sensor for sensing the turning angle of the housing 11 to output a sensing signal. For example, the direction sensing unit 15 senses a portion of the housing 11 The first turning angle is used to output a first sensing signal; the direction sensing unit 15 is used to sense a second turning angle of the housing 11 to output a second sensing signal; the direction sensing unit 15 is used to A third turning angle of the housing 11 is sensed to output a third sensing signal; the direction sensing unit 15 is used for sensing a fourth turning angle of the housing 11 to output a fourth sensing signal. The aforementioned first turning angle is the preset turning angle from any one of the second, third, and fourth mounting surfaces 112, 113, 114 to the first mounting surface 111; the second turning angle is the first, third, and fourth mounting surface. Any one of the mounting surfaces 111, 113, 114 turns to the preset turning angle of the second mounting surface 112; the third turning angle is that any one of the first, second, and fourth mounting surfaces 111, 112, 114 turns to this The preset turning angle of the third mounting surface 113; the fourth turning angle is the preset turning angle of any one of the first, second, and third mounting surfaces 111, 112, 113 to the fourth mounting surface 114.

In one embodiment, the direction sensing unit 15 is an acceleration sensor, a gyroscope, a gravity acceleration sensor (G-sensor), or any combination of the foregoing.

The control unit 16 has a controller 161. The controller 161 is represented as a microprocessor (MCU) in this embodiment. The controller 161 is electrically connected to the direction sensing unit 15 and the motor 17. In this embodiment, The controller 161 and the direction sensing unit 15 are arranged on the circuit board 18 and are electrically connected. The controller 161 determines the motor 17 according to the sensing signal output by the direction sensor corresponding to the flip angle of the housing 11 Switch to which operation mode (or function) to execute. In one embodiment, the controller 161 may be a processor (CPU), a single chip (SOC), or a digital signal processor (DSP). In another embodiment, the direction sensing unit 15 is disposed on the shaft base 116 of the housing 11 to be electrically connected to the controller 161 on the circuit board 18 through a signal line. In addition, when the present invention is actually implemented, besides the controller 161, there are other related circuits (such as PWM circuit, Hall element circuit, switching circuit, voltage stabilizing circuit, signal output circuit) included in the control unit 16 on the circuit board 18; (Not shown in the figure) is electrically connected to the controller 161.

An example is given below to illustrate that the motor 17 of the fan 1 performs four operation modes:

The first operation mode is a reverse operation mode. When the first sensing signal output by the direction sensing unit 15 represents that the housing 11 is turned over the first turning angle, the first mounting surface 111 of the housing 11 It is in contact with the contact surface 21 of the carrier 2 opposite, and the controller 161 of the control unit 16 controls the motor 17 to execute the first operation mode according to the received first sensing signal. For example, the controller 161 controls the fan 1 to perform Reverse rotation.

The second operation mode is a voltage-controlled rotational speed operation mode. When the second sensing signal output by the direction sensing unit 15 represents that the housing 11 is turned by a second turning angle, the second mounting surface 112 of the housing 11 It is in contact with the contact surface 21 of the carrier 2 opposite, and the controller 161 controls the motor 17 to execute the second operation mode according to receiving the second sensing signal. For example, the controller 161 controls the operation of the fan 1 in a voltage mode (Or speed).

The third operation mode is a PWM control speed operation mode. When the third sensing signal output by the direction sensing unit 15 represents that the housing 11 is turned by a third turning angle, the third mounting surface 113 of the housing 11 In contact with the contact surface 21 of the carrier 2 opposite, the controller 161 controls the motor 17 to execute the third operation mode according to receiving the third sensing signal. For example, the controller 161 controls the operation of the fan 1 by means of a PWM signal. (Or speed).

The fourth operation mode is a temperature-controlled rotational speed operation mode. When a fourth sensing signal output by the direction sensing unit 15 represents that the housing 11 is turned over a fourth turning angle, the fourth installation of the housing 11 The surface 114 is in contact with the contact surface 21 of the carrier 2 opposite, the controller 161 controls the motor 17 to execute the fourth operation mode according to receiving the fourth sensing signal, for example, the controller 161 receives a temperature sensing The temperature sensing signal transmitted by the fan (not shown in the figure) controls the operation (or rotation speed) of the fan 1.

In the actual implementation of the present invention, the operation modes of the fan 1 are not limited to the above four types. The user can adjust the operation modes of the fan 1 according to the desired output function of the fan 1 and the convenience and flexibility requirements of the product. For example, one operation mode or two or more operation modes (such as rotation, stop rotation, speed increase, speed reduction, forward rotation, reverse rotation, timing start rotation, timing stop rotation or sleep function operation modes), and each operation mode is Correspondingly, the direction sensing unit 15 senses each preset turning angle and each mounting surface of the housing 11. Therefore, the function of flexibly performing different outputs of the fan 1 according to the orientation of different mounting surfaces can be achieved, and the user can perform the directional assembly of the fan 1 according to the required function (or operation mode).

When the fan 1 installed in the electronic device (ie, the carrier 2) is in one of the operating modes, such as the first operating mode and switching to the other operating mode, such as the second operating mode, the user can directly pick up the current operating mode with his hand. A mounting surface 111 is attached to the housing 11 of the fan 1 contacting the contact surface 21 and turned over, so that the second mounting surface 112 of the housing 11 faces the contact surface 21 of the electronic device and is in contact with each other (as shown in Figure 4). ) At the same time, the controller 161 learns that the housing 11 is turned over according to the second sensing signal sent by the direction sensing unit 15 Two flip angles. At this time, the controller 161 will control the motor 17 to switch from the original first operation mode (such as the reverse operation mode) to the second operation mode (such as the voltage control speed operation mode). Switch and so on. In addition, if the controller 161 receives the direction sensing unit 15 to sense the sensing signal corresponding to the turning angle of the housing 11 and the preset turning angle data (for example, the first to fourth turning angles of the housing 11 are preset Data) comparison processing, if the controller 161 determines that the received sensing signal does not match the preset flip angle data, the controller 161 controls the motor 17 not to run, and if the controller 161 determines the received sensing signal When the test signal is the same as one of the flip angle data in the preset flip angle data, the controller 161 controls the motor 17 to execute an operation mode corresponding to the sensing signal, so as to effectively avoid the installation of the fan 1 without errors.

Therefore, through the design of the multi-operation mode fan 1 of the present invention, the operation mode effect of the fan 1 can be adjusted according to the direction of use, so that the user can flexibly use the desired function of the fan 1 to perform the directional assembly of the fan 1 during use. , In order to effectively achieve the effect of instantly switching the operation mode of the fan 1 and saving the operation time of the operation mode switching of the fan 1, and also effectively achieve the effect of the convenience of use and operation.

1: fan

11: shell

111: The first mounting surface

112: second mounting surface

113: Third mounting surface

114: Fourth mounting surface

116: Axle seat

1161: Axle Barrel

13: accommodation space

15: Direction sensing unit

16: control unit

161: Controller

17: Motor

171: Rotor

1712: Fan Wheel

1713: blade

173: Stator

18: circuit board

Claims (10)

A fan with multiple operation modes is used in an electronic device. The fan includes: a housing with a first mounting surface, a second mounting surface, a third mounting surface, a fourth mounting surface, and a container. A space and a shaft seat are provided, the first, second, third, and fourth mounting surfaces are arranged along the outer peripheral side wall surface of the housing, the shaft seat is arranged in the accommodating space; a motor is arranged in the housing; and a sense of direction A sensing unit for sensing one of the mounting surfaces of the housing positioned in the electronic device to correspondingly output a first sensing signal; and a control unit having a controller which is electrically connected to the direction sensor Measuring unit and the motor, the controller controls the motor to execute a first operation mode according to receiving the first sensing signal, and the first operation mode can be reverse rotation, voltage control speed, PWM control speed, temperature control speed, rotation , Stop rotation, speed increase, speed reduction, forward rotation, reverse rotation, timing start rotation, timing stop rotation or sleep operation mode. For the multi-operation mode fan described in claim 1, wherein the direction sensing unit is used for sensing the housing positioned on the second mounting surface in the electronic device to output a second sensing signal, The controller controls the motor to execute a second operation mode according to receiving the second sensing signal. For the multi-operation mode fan described in item 2 of the scope of patent application, the direction sensing unit is used for sensing the third mounting surface of the housing positioned in the electronic device to output a third sensing signal, The controller controls the motor to execute a third operation mode according to receiving the third sensing signal. For example, the multi-operation mode fan described in item 3 of the scope of patent application, wherein the direction sensing unit is used to sense the fourth mounting surface of the housing positioned in the electronic device to output a fourth sensing signal, The controller controls the motor to execute a fourth operation mode according to receiving the fourth sensing signal. The multi-operation mode fan described in the first item of the scope of the patent application, wherein any one of the first, second, third, and fourth mounting surfaces is used for combined contact with a contact surface corresponding to a carrier of the electronic device When the first sensing signal output by the direction sensing unit represents that the first mounting surface of the housing is positioned on the carrier, the first mounting surface of the housing is in contact with the contact surface of the opposite carrier Set contact, and the controller controls the motor to execute the first operation mode according to receiving the first sensing signal; when a second sensing signal output by the direction sensing unit represents that the second mounting surface of the housing is blocked When positioned on the carrier, the second mounting surface of the housing is in contact with the contact surface of the opposite carrier, and the controller controls the motor to execute a second operation mode according to receiving the second sensing signal. The multi-operation mode fan described in item 5 of the scope of patent application, wherein when a third sensing signal output by the direction sensing unit represents that the third mounting surface of the housing is positioned on the carrier, the housing The third mounting surface of the body is in contact with the contact surface of the opposite carrier, and the controller controls the motor to execute a third operation mode according to receiving the third sensing signal; when the direction sensing unit outputs a first The four sensing signals represent that when the fourth mounting surface of the housing is positioned on the carrier, the fourth mounting surface of the housing is in contact with the contact surface of the opposite carrier, and the controller receives the fourth mounting surface according to The sensing signal controls the motor to execute a fourth operation mode. For the multi-operation mode fan described in item 1 of the scope of the patent application, the controller is a microprocessor, a processor or a digital signal processor. According to the multi-operation mode fan described in item 2 of the scope of patent application, the direction sensing unit is an angular velocity sensor, an acceleration sensor, a gyroscope, a gravity sensor, or any combination of the foregoing. For example, the multi-operation mode fan described in item 1 of the scope of patent application, wherein the motor is arranged in the accommodating space of the housing, and the motor is provided with a rotor and a stator, and the stator is sleeved on the shaft base On a shaft cylinder, the rotor has a fan wheel composed of a plurality of blades and a shaft center, one end of the shaft center is fixed on the fan wheel, and the other end of the shaft center is pivotally connected in the shaft cylinder. For the multi-operation mode fan described in item 1 of the scope of patent application, a circuit board is combined with the shaft base, the controller and the direction sensing unit are arranged on the circuit board and are electrically connected to each other, and the motor It is electrically connected to the circuit board.

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