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公开(公告)号：US20220407319A1
公开(公告)日：2022-12-22
申请号：US17767303
申请日：2019-09-16
Applicant: TECHTRONIC CORDLESS GP
Inventor： Hei Man Lee , Hai Lian , Dianwu Xu
Abstract: In a battery charging system (100), a charger (110) and a smart battery (160) enhance safety in recharging a cell (180) in the smart battery (160) by a power supply (130) of the charger (110). The smart battery (160) is communicable with the charger (110). If a communication failure occurs, the charger (110) disconnects the power supply (130) from the smart battery (160). The smart battery (160) and the charger (110) share the same symmetric encryption key for encrypting and decrypting message data, allowing one party to determine if the other part is an authentic one. When the smart battery (160) finds that the charger (110) is not authentic, or vice versa, the power supply (130) and the cell (180) are disconnected. When the smart battery (160) finds that a no-charging condition occurs due to abnormality in the cell (180), the smart battery (160) requests the charger (110) to stop charging, and also disconnects the cell (180) from the charger (110) even if the charger (110) fails to stop charging the smart battery (160).
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公开(公告)号：US20240069561A1
公开(公告)日：2024-02-29
申请号：US18450247
申请日：2023-08-15
Applicant: TECHTRONIC CORDLESS GP
Inventor： Hei Man Lee , Hok Sum Sam Lai , Man Ho Choi , Ho Lam Ng , Shing Hin Li , Chi Chau Lee , Tat Hei Lai
CPC classification number: G05D1/0238 , G05D1/0022 , G05D1/0274 , G05D2201/0201
Abstract: A robotic garden tool includes at least one sensor configured to generate signals associated with an object within an operating area. A first electronic processor of the robotic garden tool receives, from the at least one sensor, an obstacle signal associated with an obstacle located within the operating area. The first electronic processor determines a first location of the robotic garden tool at a time corresponding to when the first electronic processor received the obstacle signal. The first electronic processor determines a second location of the obstacle based on the obstacle signal and the first location of the garden tool. The first electronic processor generates mapping information of the operating area that includes a virtual boundary based on the second location of the obstacle. The first electronic processor controls the robotic garden tool in the operating area to remain outside of the virtual boundary based on the mapping information.
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公开(公告)号：US20230263092A1
公开(公告)日：2023-08-24
申请号：US18172920
申请日：2023-02-22
Applicant: TECHTRONIC CORDLESS GP
Inventor： Hei Man Lee , Ho Lam Ng
CPC classification number: A01D34/008 , A01D34/82 , A01D2101/00
Abstract: A robotic garden tool including a body, a plurality of wheels, and a wheel mount extending between and coupled to a corresponding one of the plurality of wheels and the body, where the wheel mount is adjustable between a loaded position and an unloaded position, and where the wheel mount includes a sensor configured to output a signal indicating whether the wheel mount is in the loaded position or the unloaded position. The robotic garden tool also includes a controller in operable communication with the sensor of the wheel mount, and where the controller is configured to adjust the operation of the robotic garden tool based at least in part on the signal output by the sensor of the wheel mount.
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公开(公告)号：US20210050766A1
公开(公告)日：2021-02-18
申请号：US16964450
申请日：2018-02-14
Applicant: TECHTRONIC CORDLESS GP
Inventor： Hei Man Lee , Nan Wang
Abstract: An outer rotor motor having a stator and a rotor. The rotor includes a bonded magnet arranged around the stator, with an air-gap arranged between the bonded magnet and the stator.
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公开(公告)号：US20240168488A1
公开(公告)日：2024-05-23
申请号：US18489607
申请日：2023-10-18
Applicant: TECHTRONIC CORDLESS GP
Inventor： Hei Man Lee , Hok Sum Sam Lai , Man Ho Choi , Tat Hei Lai
CPC classification number: G05D1/0278 , A01D34/008 , A01D2101/00
Abstract: A base station device includes a network interface including a global navigation satellite system (GNSS) receiver and an electronic processor. The electronic processor may be coupled to the network interface. The electronic processor may be configured to receive, via the GNSS receiver, a first location signal from each of a first plurality of satellites while the base station device is located at a first location. The electronic processor may also be configured to determine a first signal strength of the base station device at the first location. The first location may be a first potential location of the base station device from which the base station device is configured to provide location calibration information based on communication with the first plurality of satellites to a robotic garden tool. An indication of the first signal strength may be output via an output device for consumption by a user.
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Patent Agency Ranking
公开(公告)号：US20240065144A1
公开(公告)日：2024-02-29
申请号：US18450243
申请日：2023-08-15
Applicant: TECHTRONIC CORDLESS GP
Inventor： Hei Man Lee , Hok Sum Sam Lai , Man Ho Choi , Ho Lam Ng , Shing Hin Li
IPC: A01D34/00
CPC classification number: A01D34/008 , A01D2101/00
Abstract: A method of creating a virtual boundary for a robotic garden tool includes receiving location coordinates of a location in which the robotic garden tool is intended to be operated. The method also includes retrieving, from a first server and based on the location coordinates, a preexisting visual media file of the location in which the robotic garden tool is intended to be operated. The preexisting visual media file includes metadata that includes coordinate information of the location shown in the preexisting visual media file. The method includes generating virtual boundary coordinates of the virtual boundary based at least partially on the preexisting visual media file and the coordinate information. The method includes controlling, with a first electronic processor of the robotic garden tool, the robotic garden tool to be confined by the virtual boundary to remain in an operating area during operation of the robotic garden tool.
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公开(公告)号：US20240061433A1
公开(公告)日：2024-02-22
申请号：US18308078
申请日：2023-04-27
Applicant: TECHTRONIC CORDLESS GP
Inventor： Denis Gaston Fauteux , Hei Man Lee , Hok Sum Sam Lai , Man Ho Choi , Ho Lam Ng , Shing Hin Li
CPC classification number: G05D1/0214 , A01D34/008 , G05D1/0278 , G05D1/028 , G05D1/0246 , G05D1/0257 , A01D2101/00
Abstract: A communication system may include a robotic garden tool with an electronic processor that may be configured to determine (i) a plurality of relative distances between the robotic garden tool and an object as the object moves in the operating area, and (ii) one or more locations of the robotic garden tool as the object moves in the operating area. The electronic processor may be further configured to determine a respective location of the one or more locations of the robotic garden tool at a respective time at which data was captured that allowed for the determination of each relative distance of the plurality of relative distances. A virtual boundary may be generated using each relative distance in combination with the respective location of the robotic garden tool at the respective time at which the data was captured that allowed for the determination of each relative distance.
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公开(公告)号：US20220252076A1
公开(公告)日：2022-08-11
申请号：US17592224
申请日：2022-02-03
Applicant: TECHTRONIC CORDLESS GP
Inventor： Hei Man Lee
Abstract: A blower, comprising: a blower body, having accommodated therein a fan and a drive unit, a rotation shaft of the fan defining a longitudinal axis, and the blower body defining an air inlet; a blow pipe, attached to the blower body and extending along the longitudinal axis, the blow pipe defining an air outlet; and a control unit, for controlling operation of the drive unit. The blower defines an airflow path extending from the air inlet to the air outlet, the control unit being at least partially located in the airflow path, such that when the blower is operating, at least a portion of an airflow entering the air inlet cools the control unit and is then discharged through the air outlet.
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公开(公告)号：US11873824B2
公开(公告)日：2024-01-16
申请号：US17592224
申请日：2022-02-03
Applicant: TECHTRONIC CORDLESS GP
Inventor： Hei Man Lee
CPC classification number: F04D25/06 , F04D29/403 , F04D29/582 , F04D29/5813 , A01G20/47
Abstract: A blower, comprising: a blower body, having accommodated therein a fan and a drive unit, a rotation shaft of the fan defining a longitudinal axis, and the blower body defining an air inlet; a blow pipe, attached to the blower body and extending along the longitudinal axis, the blow pipe defining an air outlet; and a control unit, for controlling operation of the drive unit. The blower defines an airflow path extending from the air inlet to the air outlet, the control unit being at least partially located in the airflow path, such that when the blower is operating, at least a portion of an airflow entering the air inlet cools the control unit and is then discharged through the air outlet.
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公开(公告)号：US20220386526A1
公开(公告)日：2022-12-08
申请号：US17770121
申请日：2019-10-31
Applicant: TECHTRONIC CORDLESS GP
Inventor： Hei Man Lee , Li Feng Wang
Abstract: A motor module (100) for an electrically driven garden tool comprises: a brushless DC motor (102) having a motor drive shaft (104); and a gearbox having an output shaft (108), the gearbox configured to receive the motor drive shaft (104) from the brushless DC motor (102) and drive a rotary element of the electrically driven garden tool with the output shaft (108), wherein the gearbox having a gear reduction ratio of at least 2:1. An electrically driven garden tool comprises: a housing (602) comprising a receptacle for receiving a motor module (100); and a rotary element drivable with an electric motor, the rotary element comprises a receiving element having a keyed interface corresponding to the keyed surface (122) or structure on the output shaft (108) of the motor module (100). A grass compactor (900) comprises: mounting structure to attach the grass compactor (900) to a lawn mower (1000); an inlet (1104) for receiving cut grass from an underside of the lawn mower (1000); a channel (1206) for transporting cut grass from the inlet (1104) to a feed hopper (1400); and a compaction conveyor (1404) configured to receive cut grass from the feed hopper (1400), and to compact and convey cut grass along a length thereof and discharge compacted cut grass from the outlet (1210).
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