Abstract: A walk-behind self-propelled working machine includes a main body, an operation switch, and a handle device. The main body includes a moving assembly and a drive motor. The operation switch is connected to the drive motor. The handle device is connected to the main body and includes an operation member, a connecting rod, and a sensing device. The operation member includes a gripping portion for a user to hold. The connecting rod is connected to the main body. The sensing device is configured to sense a thrust that is applied to the handle device to drive the walk-behind self-propelled working machine and further includes a pressure sensor and a pressing member. When the gripping portion receives the thrust, the pressing member applies a force along a preset straight line to the pressure sensor to drive the pressure sensor to deform.

Abstract: A battery pack includes: multiple cell units; a housing forming an accommodating cavity for accommodating at least the multiple cell units, where the accommodating cavity is an enclosed space; and a thermal insulator disposed on the outer sides of the multiple cell units, where the interior of the thermal insulator is filled with a working medium for dissipating heat from the multiple cell units. When at least one of the multiple cell units reaches a preset temperature, the working medium changes a phase from a liquid state to a gaseous state to dissipate the heat from the multiple cell units.

Abstract: A rear-moving, self-propelled working machine includes a main machine and a handle device. The main machine includes a moving assembly and a motor for driving the moving assembly. The handle device is connected to the main machine and includes an operation member, a connecting rod assembly, a housing, a sensing device, and a trigger assembly. The operation member includes a grip for a user to hold. The connecting rod assembly includes a first connecting rod connected to the main machine. The sensing device is used for sensing a thrust applied to the handle device to drive the rear-moving, self-propelled working machine. The trigger assembly is capable of applying a force to the sensing device when the grip receives the thrust. The trigger assembly is connected to the connecting rod assembly, and the sensing device is connected to the operation member.

Abstract: A walk-behind self-propelled working machine includes a main body, an operation switch, and a handle device. The main body includes a moving assembly and a drive motor. The operation switch is connected to the drive motor. The handle device is connected to the main body and includes an operation member, a connecting rod, and a sensing device. The operation member includes a gripping portion for a user to hold. The connecting rod is connected to the main body. The sensing device is configured to sense a thrust that is applied to the handle device to drive the walk-behind self-propelled working machine and further includes a pressure sensor and a pressing member. When the gripping portion receives the thrust, the pressing member applies a force along a preset straight line to the pressure sensor to drive the pressure sensor to deform.

Abstract: A walk-behind self-propelled working machine includes a main body, an operation switch, and a handle device. The main body includes a moving assembly and a drive motor. The operation switch is connected to the drive motor. The handle device is connected to the main body and includes an operation member, a connecting rod, and a sensing device. The operation member includes a gripping portion for a user to hold. The connecting rod is connected to the main body. The sensing device is configured to sense a thrust that is applied to the handle device to drive the walk-behind self-propelled working machine and further includes a pressure sensor and a pressing member. When the gripping portion receives the thrust, the pressing member applies a force along a preset straight line to the pressure sensor to drive the pressure sensor to deform.

Abstract: A walk-behind self-propelled machine includes: a body, wheels, a handle connected to the body, a motor, a driver coupled to the motor and driven by the motor, and a follower coupled to the wheels and enabled to drive the wheels to rotate, and a clutch. The clutch allows the driver to transmit power to the follower when the clutch is in a first position, the clutch cuts off a power transmission path between the motor and the wheels when the clutch is in a second position, the clutch is rotatably mounted to the driver, the clutch is in contact with the follower when the clutch rotates to the first position, and the clutch is disengaged from the follower when the clutch rotates to the second position.