CN2176587Y

CN2176587Y - Electromagnet of brake

Info

Publication number: CN2176587Y
Application number: CN 93235075
Authority: CN
Inventors: 邹建林; 邹金成; 赵克应
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-22
Filing date: 1993-11-22
Publication date: 1994-09-07
Anticipated expiration: 2003-11-22

Abstract

The utility model relates to an electromagnet for a brake, which is composed of an electromagnet and an electronic control protection circuit. The electromagnet is composed of a fixed iron, a moving iron and an iron core coil. The iron core coil is installed on the fixed iron, sliding sleeves are installed on the fixed iron and the moving iron, and the electronic control protection circuit comprises a rectifier circuit for an electromagnetic coil and a relay circuit. The utility model has the advantages that the electric energy utilization ratio of the utility model is 90% higher than the electric energy utilization ratio of the existing similar products, the power factor of the utility model can reach 0.95, the continuous work of the utility model can be realized without burning out the coil, and the electricity communication rate of the utility model is 100%. The utility model has the advantages of light weight, convenient installation, convenient maintenance, small vibration, no AC noises, high motion frequency and security.

Description

Electromagnet of brake

The utility model relates to a kind of brake electromagnet, belongs to the control appliance class of motor.

The electromagnet that existing motor is used is used the silicon steel sheet core coil mostly, and power consumption is many and noise is big, No. 90222870.6 " the brake electronics energy-saving coils " that on August 28th, 1991 was announced, though be to become to exchange to be DC operation, its iron core is still very heavy.

The purpose of this utility model provides a kind of power consumption, weight of reducing greatly, the brake electromagnet of no AC noise.

The purpose of this utility model realizes that by following manner this brake comprises electromagnet and Electronic Control protective circuit thereof with electromagnet, and the Electronic Control protective circuit comprises electromagnet coil rectification circuit and relay circuit.

Advantage of the present utility model is: 1, utilization rate of electrical height; improve more than 90% than existing like product; 2, power factor (PF) height improves 0.7 than existing like product, reaches more than 0.95; 3, from heavy and light; compare with the MZD1-300 of deadweight 40kg, it has only the same grade of 10kg(), alleviate greatly from weight; save material; installation and maintenance are convenient, and 4, vibration is little, do not have the noise of interchange; 5, continuous operation does not burn out coil; current on time is 100%, the operating frequency height, and coil does not generate heat; 6, controller is protected automatically, and is safe and reliable.

Embodiment of the present utility model is provided by accompanying drawing, and accompanying drawing 1 is the structural representation of electromagnet, and Fig. 2 is an Electronic Control protective circuit schematic diagram, below in conjunction with description of drawings the utility model.Referring to accompanying drawing; the utility model comprises electromagnet and Electronic Control protective circuit; electromagnet comprises decides iron 1; moving iron 2; two coils 3 and iron-core coil 4; two coils are contained in to be decided on iron or the moving iron; decide on iron and the moving iron sliding sleeve 5 to be housed; buffer unit 6 with two coil adapteds also is housed on the moving iron; deciding has unmagnetized material layer 7 between iron and two coils; this unmagnetized layer is not thicker than 1.2mm and gets final product; the Electronic Control protective circuit comprises the electromagnet coil rectification circuit; and relay circuit; whole device is contained on the universal brake; the brake top stem casing is in sliding sleeve, and its course of work is as follows, when motor start-up; the Electronic Control protective circuit is also switched on; output is than High Level DC Voltage behind rectification circuit, and two iron-core coils obtain equal voltage and current simultaneously, produces strong magnetic field; make the iron adhesive and promote the brake push rod; open band-type brake, motor can turn round, and moving iron adhesive promptly forms closed magnetic circuit with iron-core coil; magnetic resistance reduces; magnetic field intensity is strengthened greatly, and electromagnet only need keep corresponding magnetic force and can work reliably, for saves energy; time relay action, connection electric capacity reduces coil voltage and maintains in the voltage range of energy reliably working.When motor cut off the power supply, the Electronic Control protective circuit was cut off the power supply simultaneously, and magnetic field disappears, and moving iron resets under the spring action of buffer etc., unclamps push rod, and band-type brake is promptly held motor reel tightly and braked.

Claims

1, a kind of brake electromagnet, comprise electromagnet and Electronic Control protective circuit, it is characterized in that described electromagnet comprises decides iron (1), moving iron (2), coil (3) and iron-core coil (4), coil is contained in to be decided on the iron, decide sliding sleeve (5) is housed on iron and the moving iron, deciding has unmagnetized material layer (7) between iron and coil; Described Electronic Control protective circuit comprises electromagnet coil rectification circuit and relay circuit.

2, brake electromagnet according to claim 1 is characterized in that being equipped with on the described moving iron buffer unit (6) with the coil adapted.