公开(公告)号：US11933309B2

公开(公告)日：2024-03-19

申请号：US17871504

申请日：2022-07-22

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Fan Lin ,  Chung-Hung Tang ,  Cheng-Chieh Liu ,  Chun-Lung Chiu

IPC: F04D19/00 ,  F04D25/06 ,  F04D27/00 ,  F04B49/02 ,  F04B49/06 ,  F04B49/20 ,  F04D17/16 ,  F04D29/66

CPC classification number: F04D19/002 ,  F04D25/06 ,  F04D27/004 ,  F04B49/02 ,  F04B49/06 ,  F04B49/065 ,  F04B49/20 ,  F04D17/16 ,  F04D29/661 ,  F05D2260/85

Abstract: A method for controlling a fan in a fan start-up stage including a first time period and a second time period comprises the following steps of: during the first time period, continuously providing a first driving signal to drive the fan; and during the second time period, continuously providing a second driving signal to drive the fan; wherein, the signal value of the first driving signal gradually decreases until being equal to the signal value of the second driving signal. Wherein the signal value of the first driving signal non-linearly decreases, the signal value of the second driving signal is an unchanged value. Wherein, the first time period and the second time period are adjusted for a different fan but the sum of the first time period and the second time period is always the same. A fan is also disclosed.

公开(公告)号：US09903381B2

公开(公告)日：2018-02-27

申请号：US14991709

申请日：2016-01-08

Applicant: DELTA ELECTRONICS, INC.

Inventor： Cheng-Chieh Liu ,  Chin-Ping Su ,  Te-Sheng Su ,  Wen-Chih Wang

IPC: H02P6/30 ,  F04D27/00 ,  F04D19/00 ,  F04D25/08

CPC classification number: F04D27/004 ,  F04D19/005 ,  F04D25/08 ,  H02P6/30

Abstract: A control system includes a motor, an interface circuit, a motor controller and a detection control circuit. The interface circuit receives and converts a pulse width modulation signal. The fan dissipates heat when the motor is operated in a forward rotation mode and eliminates dust when the motor is operated in a reverse rotation mode. The detection control circuit reads a duty cycle of the converted pulse width modulation signal in real time. When the motor is operated in the forward rotation mode, the detection control circuit drives the motor controller to control the rotation speed of the fan according to the duty cycle. If the duty cycle is lower than or equal to a first threshold value, the detection control circuit drives the motor controller to switch operation mode of the motor from the forward rotation mode to the reverse rotation mode.

公开(公告)号：US20160238014A1

公开(公告)日：2016-08-18

申请号：US14991709

申请日：2016-01-08

Applicant: DELTA ELECTRONICS, INC.

Inventor： Cheng-Chieh Liu ,  Chin-Ping Su ,  Te-Sheng Su ,  Wen-Chih Wang

IPC: F04D27/00 ,  F04D25/06 ,  F04D19/00

CPC classification number: F04D27/004 ,  F04D19/005 ,  F04D25/08 ,  H02P6/30

Abstract: A control system includes a motor, an interface circuit, a motor controller and a detection control circuit. The interface circuit receives and converts a pulse width modulation signal. The fan dissipates heat when the motor is operated in a forward rotation mode and eliminates dust when the motor is operated in a reverse rotation mode. The detection control circuit reads a duty cycle of the converted pulse width modulation signal in real time. When the motor is operated in the forward rotation mode, the detection control circuit drives the motor controller to control the rotation speed of the fan according to the duty cycle. If the duty cycle is lower than or equal to a first threshold value, the detection control circuit drives the motor controller to switch operation mode of the motor from the forward rotation mode to the reverse rotation mode.

Abstract translation: 控制系统包括电动机，接口电路，电动机控制器和检测控制电路。 接口电路接收并转换脉宽调制信号。 当电机以正向旋转模式运行时，风扇散热，并且当电机以反向旋转模式运行时，风扇消除灰尘。 检测控制电路实时读取转换后的脉宽调制信号的占空比。 当电机以正转模式运转时，检测控制电路驱动电动机控制器根据占空比来控制风扇的转速。 如果占空比低于或等于第一阈值，则检测控制电路驱动电动机控制器将电动机的运行模式从正转模式切换到反转模式。

公开(公告)号：US09973118B2

公开(公告)日：2018-05-15

申请号：US14831461

申请日：2015-08-20

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yu-Liang Lin ,  Chung-Hung Tang ,  Cheng-Chieh Liu ,  Chien-Sheng Lin ,  Chun-Lung Chiu

IPC: H02P1/00 ,  H02P6/00 ,  H02P6/182 ,  H02P6/20 ,  G01D5/14

CPC classification number: H02P6/26 ,  G01D5/145 ,  H02P6/182 ,  H02P6/20

Abstract: A motor drive circuit including a back electromotive force detecting module and a processing module is disclosed herein. The back electromotive force detecting module is electrically connected to a single phase DC motor and is configured to detect a back electromotive force of the single phase DC motor and to output a detecting signal correspondingly. The processing module is electrically connected to the back electromotive force detecting module and the single phase DC motor. The processing module is configured to determine the rotation direction of the single phase DC motor according to the detecting signal and a hall signal outputted by a hall element located in the single phase DC motor, and is configured to control the single phase DC motor.

公开(公告)号：US11473584B2

公开(公告)日：2022-10-18

申请号：US16524814

申请日：2019-07-29

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Fan Lin ,  Chung-Hung Tang ,  Cheng-Chieh Liu ,  Chun-Lung Chiu

IPC: F04D19/00 ,  F04D27/00 ,  F04D25/06 ,  F04D17/16 ,  F04D29/66 ,  F04B49/02 ,  F04B49/20 ,  F04B49/06

Abstract: A method for controlling a fan in a fan start-up stage including a first time period and a second time period comprises the following steps of: during the first time period, continuously providing a first driving signal to drive the fan; and during the second time period, continuously providing a second driving signal to drive the fan; wherein, during the first time period the signal value (driving energy) of the first driving signal gradually decreases until being equal to the signal value of the second driving signal, and the signal value of the first driving signal is initially greater than the signal value of the second driving signal. A fan is also disclosed.

公开(公告)号：US09316230B2

公开(公告)日：2016-04-19

申请号：US14555276

申请日：2014-11-26

Applicant: DELTA ELECTRONICS, INC.

Inventor： Sheng-Wei Yeh ,  Chiu-Kung Chen ,  Cheng-Chieh Liu ,  Shao-Chang Tu

IPC: F04D25/06 ,  F04D29/32 ,  F04D29/54 ,  F04D19/00 ,  H05K3/10 ,  H05K3/18 ,  H05K3/34 ,  F04D17/16 ,  F04D29/28

CPC classification number: H05K3/182 ,  F04D17/16 ,  F04D19/002 ,  F04D25/0693 ,  F04D29/281 ,  F04D29/325 ,  F04D29/541 ,  F04D29/626 ,  H05K3/105 ,  H05K3/341 ,  H05K2201/0215 ,  H05K2201/0999 ,  Y10T29/49147

Abstract: A manufacturing method of the thin fan includes the steps of: providing a plastic material containing a plurality of metal particles; processing the plastic material to form a housing; removing a part surface of the housing and forming a layout area and an extended circuit on the housing, wherein one terminal of the extended circuit connects to the layout area; disposing a first signal connecting structure on the housing, wherein the first signal connecting structure connects to the other terminal of the extended circuit; and disposing a metal layer on the layout area and the extended circuit.

Abstract translation: 薄风扇的制造方法包括以下步骤：提供包含多个金属颗粒的塑料材料; 处理塑料材料以形成外壳; 去除所述壳体的部分表面并且在所述壳体上形成布局区域和扩展电路，其中所述扩展电路的一个端子连接到所述布局区域; 在壳体上设置第一信号连接结构，其中第一信号连接结构连接到扩展电路的另一端; 并在布局区域和扩展电路上设置金属层。

公开(公告)号：US10064286B2

公开(公告)日：2018-08-28

申请号：US15060968

申请日：2016-03-04

Applicant: DELTA ELECTRONICS, INC.

Inventor： Sheng-Wei Yeh ,  Chiu-Kung Chen ,  Cheng-Chieh Liu ,  Shao-Chang Tu

IPC: H02K15/00 ,  B23P19/00 ,  H05K13/04 ,  H05K3/18 ,  H05K3/10 ,  H05K3/34 ,  F04D19/00 ,  F04D25/06 ,  F04D29/32 ,  F04D29/54 ,  F04D17/16 ,  F04D29/28 ,  F04D29/62 ,  B21D53/78

CPC classification number: F04D25/0693 ,  F04D17/16 ,  F04D19/002 ,  F04D29/281 ,  F04D29/325 ,  F04D29/541 ,  F04D29/626 ,  H05K3/105 ,  H05K3/182 ,  H05K3/341 ,  H05K2201/0215 ,  H05K2201/0999 ,  Y10T29/49147

Abstract: A manufacturing method of a structure of a thin fan includes providing a plastic material containing a plurality of metal particles and forming a housing from the plastic material. A part surface of the housing is removed, and a layout area and an extended circuit are formed on the housing. One terminal of the extended circuit connects to the layout area. A first signal connecting structure is disposed on the housing. The first signal connecting structure connects to the other terminal of the extended circuit. A metal layer is disposed on the layout area and the extended circuit.

公开(公告)号：US08922148B2

公开(公告)日：2014-12-30

申请号：US13708702

申请日：2012-12-07

Applicant: Delta Electronics, Inc.

Inventor： Yu-Liang Lin ,  Kun-Fu Chuang ,  Cheng-Chieh Liu

IPC: H02K29/08 ,  H02P6/16 ,  H02P6/00 ,  H02P6/10

CPC classification number: H02P6/16 ,  H02P6/10 ,  H02P6/26

Abstract: A motor includes a rotor, a sensor unit, an offset unit, a rectification unit and a modulating unit. The sensor unit outputs a first signal in accordance with a magnetic field variation of the rotor. The offset unit is coupled to the sensor unit, and outputs a second signal in accordance with the first signal. The rectification unit is coupled to the offset unit, and outputs a third signal in accordance with the second signal. The modulating unit is coupled to the rectification unit, and outputs a control signal in accordance with a result by comparing the third signal with a periodic signal. The modulating unit controls a reverse rotation of the rotor smoothly in accordance with the control signal. A control method of the motor is also disclosed.

Abstract translation: 马达包括转子，传感器单元，偏移单元，整流单元和调制单元。 传感器单元根据转子的磁场变化输出第一信号。 偏移单元耦合到传感器单元，并且根据第一信号输出第二信号。 整流单元耦合到偏移单元，并根据第二信号输出第三信号。 调制单元耦合到整流单元，并且通过将第三信号与周期信号进行比较，根据结果输出控制信号。 调节单元根据控制信号平滑地控制转子的反向旋转。 还公开了电动机的控制方法。