Design scheme applied to shutdown braking of series excited machine by using bilateral stator exciting winding

A technology of stator windings and field windings, which is applied in the field of design schemes for series-excited motors using bilateral stator field windings to stop and brake. It can solve problems such as cumbersome wiring harnesses, and achieve cost savings, shortened braking time, and high cost performance.

Pending Publication Date: 2022-04-12
艾博金电气制造(深圳)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the traditional braking scheme, the motor needs to be connected with fiv

Method used

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  • Design scheme applied to shutdown braking of series excited machine by using bilateral stator exciting winding
  • Design scheme applied to shutdown braking of series excited machine by using bilateral stator exciting winding
  • Design scheme applied to shutdown braking of series excited machine by using bilateral stator exciting winding

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Embodiment Construction

[0019] Below, in conjunction with accompanying drawing and specific embodiment, the present invention is further described:

[0020] In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "another side", "front", "rear", "middle part", "inner", " The orientation or positional relationship indicated by "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have specific orientation, construction and operation in a specific orientation, and therefore should not be construed as limiting the invention; the terms "first", "second" and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative Importance; In addition, unless otherwise clearly stipulated and lim...

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Abstract

The invention provides a design scheme applied to a series excited machine for shutdown braking by using a bilateral stator exciting winding, which comprises wire harnesses W1, W2, W3 and W4, a stator winding A, a stator winding B and a motor armature winding M. The stator winding A and the stator winding B are connected in series, the two ends of the stator winding A and the stator winding B are respectively connected with the W1 and the W3, the two ends of the positive electrode and the negative electrode of the motor armature winding M are respectively connected with the W2 and the W4, and when the motor is electrified to operate, the W1 and the W2 are electrified, and the W3 and the W4 are conducted; when the motor runs and the machine encounters an emergency cover opening condition, the stator winding A, the stator winding B and the armature winding M are connected in series to form a closed loop through switch conversion, power failure of W1/W2, conduction of W1 and W4 and conduction of W2 and W3, the closed loop generates reverse induced current under excitation of a residual magnetic field of the armature winding of the series excitation motor, reverse torque is formed, and the stator winding A, the stator winding B and the armature winding M are connected in series. And the motor quickly stops running and braking, so that the braking function is realized. The braking time is greatly shortened, the braking effect is better, the motor only needs to be connected with four outgoing lines, and more cost is saved.

Description

technical field [0001] The invention relates to the technical field of electric motors, in particular to a design scheme for stopping and braking applied to series-excited electric motors using bilateral stator excitation windings. Background technique [0002] Now with the improvement of people's quality of life, food processing is more dependent on machine processing, so the safety requirements of food processors are getting higher and higher. When special circumstances are encountered during the work of food processors, such as operators mistakenly put the lid on the cup When it is opened, the mixing tool driven by the motor is required to stop running immediately to avoid personal injury. According to the national standard, the knife head must stop rotating within 1.5 seconds after the machine is opened. The popular explanation is the braking function. At present, most of the food processors using series excitation motors on the market use the single-side stator excitati...

Claims

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Application Information

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IPC IPC(8): H02P3/20
Inventor 陈诚
Owner 艾博金电气制造(深圳)有限公司
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