Detection device and detection method of motor stalling

A detection device and detection method technology, applied in emergency protection circuit devices, electrical components and other directions, can solve the problems of current detection circuit heating, inaccurate circuit detection, component accuracy changes, etc., to achieve small device calorific value, fast detection speed, The effect of prolonging the working life

Inactive Publication Date: 2014-05-14
BEIQI FOTON MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the locked-rotor current is very large, the current detection circuit heats up very seriously, which affects the service life, and because the consistency of the current detection components in the current detection circuit is not high and the accuracy of the components will change due to temperature, the circuit detection is not accurate enough

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  • Detection device and detection method of motor stalling
  • Detection device and detection method of motor stalling
  • Detection device and detection method of motor stalling

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand...

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Abstract

The present invention discloses a detection device of motor stalling. The detection device of the motor stalling comprises an electromagnetic coupling device connected with a motor, wherein an AC generated when a driving load of the motor works passes through the electromagnetic coupling device; a detection module connected with the electromagnetic coupling device and used for detecting the frequency of the AC passing through the electromagnetic coupling device; a control module connected with the detection module and the motor separately and used for comparing the frequency of the AC detected by the detection module with a preset threshold value frequency, and when the frequency of the AC is less than the preset threshold value frequency, judging whether the motor is stalled, and controlling the motor to stop rotating. The present invention also discloses a detection method of the motor stalling. According to the detection device and the detection method of the motor stalling of the present invention, the service life, safety and reliability of the motor are improved.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a detection device and a detection method for a motor stall. Background technique [0002] The electric window lift function of the car is a very common configuration on the car at present. The electric lift function of the window is realized by pressing or lifting the window control button. The operation is very convenient, and it has replaced the manual mechanical window on many models. Glass lift. The drive motor of the electric window of the car drives the car glass to rise or fall. When the glass rises or falls to the limit position, due to the limitation of the mechanical mechanism, the drive motor cannot continue to rotate, resulting in a very large stall current (generally the window drive motor The locked-rotor current is 2-4 times larger than the normal working current), if the motor control module cannot cut off the power supply of the motor in time, the locked-...

Claims

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Application Information

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IPC IPC(8): H02H7/085
Inventor 蒲金普赵澎叶树珩刘莲芳庞极洲刘丽
Owner BEIQI FOTON MOTOR CO LTD
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