Sensing assembly, driving apparatus and working method thereof

Abstract

The present invention relates to a sensing assembly, a driving apparatus and a working method thereof. The sensing assembly comprises a buffer member, a magnetic member, a Hall element, and a controller. The buffer member is disposed on a rack or a moving member of the driving apparatus, and the buffer member abuts between the rack and the moving member when the moving member moves to a preset position. On one hand, the buffer member has a buffering effect on the moving member of the driving apparatus, so that the driving apparatus is prevented from being damaged when the moving member moves and directly makes contact with the rack; and on the other hand, the buffer member can reduce the running speed of the moving member, and when the speed of the moving member decreases, the controller correspondingly judges and controls a transmission member of the driving apparatus to stop rotating according to a signal sent by the Hall element so as to achieve the function of remote passive signalsensing. In addition, sensing elements and signal lines do not need to be arranged around the motion stroke of the specific moving member, so that structural constraints caused by limit space or environments are overcome, the anti-interference capability is improved, and the driving apparatus is protected.

Description

technical field [0001] The invention relates to the technical field of sensing, in particular to a sensing component, a driving device and a working method thereof. Background technique [0002] The current driving devices with stroke control, including but not limited to coffee devices, brewing devices, soybean milk devices, fruit juice machines, etc., the control of their mechanical actions and motion strokes is generally inseparable from the control of sensors, especially for the motion stroke of moving components. Position control is particularly important. Traditional control sensing elements are generally active signal feedback sensing, for example, by touching the opening and closing signal of the contact of the travel electronic switch at a specific position to detect whether the mechanism action has reached the predetermined position. However, the active signal feedback sensor has the following disadvantages: if there is vibration during the movement of the moving m...

AI Technical Summary

Problems solved by technology

However, the active signal feedback sensor has the following disadvantages: if there is vibration during the movement of the moving member, or the vibration of the drive device itself with stroke control, or vibration from the outside, etc., it will cause the contact effect at the contact point to be damaged. The signal is distorted or cannot be captured, so that the stroke of the driving device with stroke control cannot be controlled and fails, and even poses a huge safety hazard; in addition, the power signal line of the active signal feedback sensor is close to the moving component. In some specific environments or Under the condition of space, it cannot be implemented. For example, the travel signal switch itself is set on the moving component. Not only will the signal be distorted due to its own vibration, but also the wiring process is complicated. The signal line always moves synchronously with the moving component. In this way, it is easy to cause The signal line breaks and fails

For another example, in some environments with water and in a state of motion, the sealing of the signal line will become a challenge, and it is easy to fail

For another example, in some environments with limited structural space, due to the compactness of the structural space, there is no place to install active signal feedback sensors

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