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公开(公告)号：US20230223802A1
公开(公告)日：2023-07-13
申请号：US17733483
申请日：2022-04-29
Applicant: Delta Electronics, Inc.
Inventor： Yi-Fan Lin , Li-Jiang Lu , Chin-Chun Lai , Chung-Hung Tang , Chun-Lung Chiu
IPC: H02K1/2746 , H02K11/33 , H02K29/03 , H02K11/215
CPC classification number: H02K1/2746 , H02K11/33 , H02K29/03 , H02K11/215 , H02K2213/03
Abstract: A motor is provided and driven by two phase. The first and second control signals have a phase difference of 90 degrees and are configured to control the first and second driving units, respectively, and the first and second control signals drive the first and second coil sets, respectively. Each of the first and second poles of the permanent magnet occupies a mechanical angle of 360/2n degrees of the permanent magnet, respectively, and n is 1 or 3. The four sets of the coils of the stator are equally located on the stator, each set of the coil occupies a mechanical angle of 360/2m degrees of the stator, any two sets of the coils adjacent to each other are separated by a mechanical angle of 90−(360/2m) degrees, and m is 3 or 2, wherein m corresponds to 2 when n is 1, m corresponds to 3 when n is 3.
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Patent Agency Ranking
2.发明授权公开(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
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.
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3.发明授权公开(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
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.
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公开(公告)号：US09780705B2
公开(公告)日：2017-10-03
申请号：US15004991
申请日：2016-01-24
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yi-Fan Lin , Chien-Sheng Lin , Chung-Hung Tang , Chun-Lung Chiu
Abstract: A single phase brushless DC motor comprises a Hall effect sensor, a coil assembly and a motor control circuit which generating a driving signal to guide a coil current flowing through the coil assembly. The Hall effect sensor senses the magnetic pole of the rotor to accordingly generate a Hall effect signal. The motor control circuit outputs a current polarity reverse signal according to the voltage at one end of the coil assembly. The time when the current polarity reverse signal is generated corresponds to the polarity reverse time of the coil current. The motor control circuit adjusts the phase of the driving signal according to the polarity reverse time of the Hall effect signal and the time when the current polarity reverse signal is generated to synchronize the phase of the back emf of the single phase brushless DC motor with the phase of the coil current.
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公开(公告)号：US20240283309A1
公开(公告)日：2024-08-22
申请号：US18653067
申请日：2024-05-02
Applicant: Delta Electronics, Inc.
Inventor： Yi-Fan Lin , Li-Jiang Lu , Chin-Chun Lai , Chung-Hung Tang , Chun-Lung Chiu
IPC: H02K1/2746 , H02K11/215 , H02K11/33 , H02K29/03
CPC classification number: H02K1/2746 , H02K11/215 , H02K11/33 , H02K29/03 , H02K2213/03
Abstract: A motor is provided and driven by two phase. The first and second control signals have a phase difference of 90 degrees and are configured to control the first and second driving units, respectively, and the first and second control signals drive the first and second coil sets, respectively. Each of the first and second poles of the permanent magnet occupies a mechanical angle of 360/2n degrees of the permanent magnet, respectively, and n is 1 or 3. The four sets of the coils of the stator are equally located on the stator, each set of the coil occupies a mechanical angle of 360/2m degrees of the stator, any two sets of the coils adjacent to each other are separated by a mechanical angle of 90−(360/2m) degrees, and m is 3 or 2, wherein m corresponds to 2 when n is 1, m corresponds to 3 when n is 3.
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公开(公告)号：US12009697B2
公开(公告)日：2024-06-11
申请号：US17733483
申请日：2022-04-29
Applicant: Delta Electronics, Inc.
Inventor： Yi-Fan Lin , Li-Jiang Lu , Chin-Chun Lai , Chung-Hung Tang , Chun-Lung Chiu
IPC: H02K1/2746 , H02K11/215 , H02K11/33 , H02K29/03
CPC classification number: H02K1/2746 , H02K11/215 , H02K11/33 , H02K29/03 , H02K2213/03
Abstract: A motor is provided and driven by two phase. The first and second control signals have a phase difference of 90 degrees and are configured to control the first and second driving units, respectively, and the first and second control signals drive the first and second coil sets, respectively. Each of the first and second poles of the permanent magnet occupies a mechanical angle of 360/2n degrees of the permanent magnet, respectively, and n is 1 or 3. The four sets of the coils of the stator are equally located on the stator, each set of the coil occupies a mechanical angle of 360/2m degrees of the stator, any two sets of the coils adjacent to each other are separated by a mechanical angle of 90−(360/2m) degrees, and m is 3 or 2, wherein m corresponds to 2 when n is 1, m corresponds to 3 when n is 3.
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