Snow thrower and power tool
AssigneeNanjing Chervon Industry Co., Ltd.
InventorsChunsen Qian, Jifeng Feng, Peng Wang, Toshinari Yamaoka
Life of this patent
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Abstract
A power tool includes a handle assembly, a power supply, and a temperature control module; where the handle assembly includes a left grip and a right grip, where a first end of the left grip is coupled to a body of the power tool, a second end of the left grip is coupled to a first end of the right grip, and a second end of the right grip is coupled to the body of the power tool; the temperature control module is coupled to the handle assembly and the power supply separately; and the power supply is configured to power the temperature control module so that the temperature control module is configured to heat the handle assembly.
Claims19
A snow thrower, comprising a handle system, the handle system comprising a handle assembly and a temperature control module;
- wherein the handle assembly comprises a grip and a temperature switch, the temperature control module is configured to heat the grip, the temperature switch is disposed on a heating path from the temperature control module to the grip, the temperature switch is in an off state when a temperature of the grip is higher than a first threshold, and the temperature switch is in an on state when the temperature of the grip is lower than a second threshold;
- wherein the handle system comprises a signal collection module capable of sending a working signal to the temperature control module and a temperature detection module configured to collect the temperature of the grip and send the temperature of the grip to the signal collection module;
- and
- wherein the signal collection module is configured to determine, based on a stored preset correspondence, a pulse-width modulation (PWM) signal corresponding to the temperature of the grip and send the PWM signal to the temperature control module, the preset correspondence comprises at least one correspondence between the temperature and the PWM signal, and the temperature control module is further configured to heat the grip based on the PWM signal.
A power tool, comprising a handle assembly, a power supply, and a temperature control module;
- wherein the handle assembly comprises a left grip and a right grip, a first end of the left grip is coupled to a body of the power tool, a second end of the left grip is coupled to the right grip, a second end of the right grip is coupled to the body of the power tool, the temperature control module is coupled to the handle assembly and the power supply separately, and the power supply is configured to power the temperature control module so that the temperature control module is configured to heat the handle assembly;
- and
- wherein the handle assembly comprises a signal collection module capable of sending a working signal to the temperature control module and a temperature detection module configured to collect the temperature of at least one of the left grip or the right grip and send the collected temperature to the signal collection module, the temperature detection module includes a negative temperature coefficient (NTC) temperature detection module.
Dependencies are inferred from the claim text.