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1. 发明公开

US20240191892A1 AIR PURIFIER 审中-公开
公开(公告)号：US20240191892A1
公开(公告)日：2024-06-13
申请号：US18164698
申请日：2023-02-06
申请人： DEFOND ELECTECH CO., LTD
发明人： TAK CHUEN OR , CHENG CHEN NIEH , CHIU KEUNG LOONG , KIN YU WONG , CHUN KAN LIN , LAP YI LAW
IPC分类号： F24F8/15 , F24F8/22
CPC分类号： F24F8/15 , F24F8/22
摘要： The present application provides an air purifier comprising a main body, wherein the main body comprises: a housing, wherein an interior of the housing is hollow, an air inlet is formed at one end of the housing, an air outlet is formed at the other end of the housing, and positions of the air inlet and the air outlet are interchangeable; a fan mounted in the housing and used for sucking outside air from one end of the housing or for sucking outside air from the other end of the housing; a photocatalyst member mounted in the housing; and ultraviolet light-emitting members mounted in the housing, so that ultraviolet light emitted by the ultraviolet light-emitting members can effectively irradiate the photocatalyst member.

2. 发明授权

US11919137B2 Control assembly for use in operation of an electric device 有权
公开(公告)号：US11919137B2
公开(公告)日：2024-03-05
申请号：US18119054
申请日：2023-03-08
申请人： DEFOND ELECTECH CO., LTD , DEFOND COMPONENTS LIMITED
发明人： Wai Man Wong , Chiu Keung Loong
IPC分类号： H02P6/30 , B25F5/00 , H02P6/08
CPC分类号： B25F5/001 , H02P6/08 , H02P6/30
摘要： A control assembly for use in controlling a speed of operation of an electric device, the control assembly including: a control assembly housing; a magnetic sensor; a magnetic element; an actuator that is configured for movement relative to the control assembly housing wherein responsive to said movement of the actuator relative to the control assembly housing, the magnetic sensor and magnetic element move relative to each other between at least one of a first position and a second position such that the magnetic sensor senses a first magnetic field reading when in the first position and senses a second magnetic field reading when in the second position; and, a control module operably connected to the magnetic sensor and configured for controlling the electric device to operate in at least one of a first speed and a second speed by reference to an output of the magnetic sensor indicative of the sensed first magnetic field reading and the second magnetic field reading respectively.

3. 发明授权

US11623335B2 Control assembly for use in operation of an electric device 有权
公开(公告)号：US11623335B2
公开(公告)日：2023-04-11
申请号：US16180922
申请日：2018-11-05
申请人： DEFOND ELECTECH CO., LTD , DEFOND COMPONENTS LIMITED
发明人： Wai Man Wong , Chiu Keung Loong
IPC分类号： H02P6/30 , H02P6/08 , H02P6/22 , B25F5/00
摘要： A control assembly for use in controlling a speed of operation of an electric device, the control assembly including: a control assembly housing; a magnetic sensor; a magnetic element; an actuator that is configured for movement relative to the control assembly housing wherein responsive to said movement of the actuator relative to the control assembly housing, the magnetic sensor and magnetic element move relative to each other between at least one of a first position and a second position such that the magnetic sensor senses a first magnetic field reading when in the first position and senses a second magnetic field reading when in the second position; and, a control module operably connected to the magnetic sensor and configured for controlling the electric device to operate in at least one of a first speed and a second speed by reference to an output of the magnetic sensor indicative of the sensed first magnetic field reading and the second magnetic field reading respectively.

4. 发明授权

US11489523B2 Touch control human machine interface 有权
公开(公告)号：US11489523B2
公开(公告)日：2022-11-01
申请号：US16682561
申请日：2019-11-13
申请人： DEFOND ELECTECH CO., LTD , DEFOND COMPONENTS LIMITED
发明人： Cheng Chen Nieh , Kai Kei Poon , Yiu Cho Yuen
IPC分类号： H03K17/96 , G06F3/02 , G06F3/044 , G06F3/0481
摘要： A touch control human-machine interface for use in controlling operation of a machine, said interface including: an interface housing; a cover plate disposed on an outer-surface of the housing, said cover plate having a first electrically-conductive portion configured for touch interaction by a user's finger; a circuit assembly disposed within the housing, said circuit assembly including a circuit board having a second electrically-conductive portion and a light illumination module operably-connected thereto; a spacer element disposed between and separating the first conductive portion from the second conductive portion such that the first conductive portion, the second conductive portion and the spacer element are configured to form a capacitor device that is operably-connected with the circuit assembly; said first electrically-conductive portion being configured for deformation by the user's finger so as to cause a change in capacitance across the capacitor device, and whereby responsive to said change in capacitance, the circuit assembly is configured for generating a control signal for controlling operation of the machine, and, for controlling the light illumination module to propagate a light emission from the circuit assembly through the housing and cover plate so as to be visible externally of the housing.

5. 外观设计

USD965536S1 Touch LED component 有权
公开(公告)号：USD965536S1
公开(公告)日：2022-10-04
申请号：US29717954
申请日：2019-12-19
申请人： Defond Electech Co., Ltd. , Defond Components Limited
设计人： Lei Zhang , Guo Zhu Zeng , Jian Hua Gong , Ding Wei Que , Yun Zhang

6. 发明申请

US20210142966A1 LOCK-OFF MECHANISM FOR LOCKING-OFF A TRIGGER ASSEMBLY OF AN ELECTRIC DEVICE 有权
公开(公告)号：US20210142966A1
公开(公告)日：2021-05-13
申请号：US17095462
申请日：2020-11-11
申请人： DEFOND ELECTECH CO., LTD , DEFOND COMPONENTS LIMITED
发明人： Wai Man Wong
IPC分类号： H01H13/14 , H01H13/04 , B25F5/02
摘要： A trigger switch assembly for use with an electrical device, including: a switch housing; a switch circuit disposed within the switch housing; an actuator rod configured for operable-interaction with a contact lever of the switch circuit; a trigger member having an actuator rod engagement recess configured for receiving a first end of the actuator rod therein, and, a finger-engagement portion configured for engagement by a user's finger so as to urge the actuator rod along the movement axis from the OFF position in to its ON position; and a lock-off mechanism.

7. 发明授权

US10978257B2 Lock-off assembly for use in locking-off a trigger of an electrical device 有权
公开(公告)号：US10978257B2
公开(公告)日：2021-04-13
申请号：US16923562
申请日：2020-07-08
申请人： Defond Electech Co., Ltd , Defond Components Limited
发明人： Cheng Chen Nieh , Kin Yu Wong , Lap Yi Law
IPC分类号： H01H9/20 , H01H21/22 , H01H21/36
摘要： A trigger assembly for an electrical device that includes a main body having a housing within which an electrical switch unit is disposed. The trigger assembly may include a trigger member having an engagement portion that is hingedly connected to the main body so that the trigger member is rotatable about a hinge relative to the main body. The trigger assembly may include an actuator member operably-connected to the trigger member that is movable between an OFF position and an ON position. The trigger assembly may include a lock-off mechanism including a lock-off member that is selectively operable to restrict movement of the trigger member towards the main body and to thereby restrict movement of the actuator member from the OFF position into the ON position, and, to not restrict movement of the trigger member toward the main body.

8. 发明授权

US10964499B2 Detection circuit module for use in detecting an operational status of a household appliance door 有权
公开(公告)号：US10964499B2
公开(公告)日：2021-03-30
申请号：US16207397
申请日：2018-12-03
申请人： Defond Electech Co., Ltd. , Defond Components Limited
发明人： Chiu Keung Loong
IPC分类号： H01H47/00 , E05B47/00 , H01H47/22 , D06F39/14 , G01R31/50 , D06F37/42 , D06F33/00
摘要： A detection circuit module for use with a household appliance door to detect when the door is closed and/or locked, the detection circuit module having a first and a second contact configured for electrical connection with the household appliance door so as to be operable with the household appliance door, the detection circuit module including: a door closing switch arranged electrically in series between the first connecting contact and an actuator; a door locking switch arranged electrically in series between the actuator member and the second connecting contact; and a diode arranged in series with the actuator and the second connecting contact and the diode being arranged electrically in parallel with the door locking switch.

9. 发明申请

US20200343059A1 TRIGGER ASSEMBLY WITH A PROTECTIVE COVERING 审中-公开
公开(公告)号：US20200343059A1
公开(公告)日：2020-10-29
申请号：US16536142
申请日：2019-08-08
申请人： Defond Electech Co., Ltd , Defond Components Limited
发明人： Lap Yi Law
IPC分类号： H01H21/08 , H01H21/06
摘要： A covering for a trigger assembly of an electrical device, said covering being configured for at least partially covering a torsion spring of the trigger assembly so as to alleviate ingress of dust, water and other particulates in to contact with the torsion spring.

10. 发明申请

US20200328606A1 Wireless Charging Device with Detachable Base 审中-公开
公开(公告)号：US20200328606A1
公开(公告)日：2020-10-15
申请号：US16820110
申请日：2020-03-16
申请人： Defond Electech Co., Ltd. , Defond Components Limited
发明人： Cheng Chen Nieh , Wai Cheong Wilson Chu , Sen Xian Fang
IPC分类号： H02J7/00 , H02J7/02 , H02J50/12
摘要： A wireless charging device with a detachable base, which comprises a base and a power supply device detachably connected to the base. The base is provided with a wireless charging module, and the power supply device is internally provided with a power supply and is further provided with a first electrical connection part electrically connected to the power supply. The base is provided with a second electrical connection part which is matched with the first electrical connection part and electrically connected to the wireless charging module. When the base is connected to the power supply device, the first electrical connection part is conductive with the second electrical connection part. The wireless charging device with a detachable can be used to wirelessly charge electronic devices needing different charging powers by means of power supply devices of different specifications.

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