CN-122025339-A - Optimized electromagnet

CN122025339ACN 122025339 ACN122025339 ACN 122025339ACN-122025339-A

Abstract

An optimized electromagnet comprises a magnetic core tube and a coil, wherein the coil is formed by winding a wire on a framework, the wire is a high-resistance enameled wire, a single-chip microcomputer control circuit is further packaged in the electromagnet, the single-chip microcomputer control circuit comprises a 51 single-chip microcomputer and a full-bridge rectifying circuit, the single-chip microcomputer is controlled by a control program in the single-chip microcomputer to output a low level within a certain period of time after being electrified, two ends of the coil of the electromagnet under the low level output are close to power supply voltage, the electromagnet is attracted within the period of time, PWM oscillation waves are output after the period of time is exceeded, the MOS tube Q2 is continuously conducted and disconnected, and power consumption generated by current passing through the coil of the electromagnet when the PWM oscillation waves are output is smaller than or equal to power consumption generated when the electromagnet of the specification adopts the copper enameled wire. The invention adopts the addition of the singlechip control circuit in the existing electromagnet, reduces the power consumption of the coil through program control, and has convenient parameter writing.

Inventors

MENG FANPENG
HUANG MENG
LI ZHENZHOU
LIU XIONGWEI
ZHANG LEI

Assignees

安阳凯地磁力科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260311

Claims (5)

1. The optimized electromagnet comprises a magnetic core tube and a coil, wherein the coil is formed by winding a winding wire on a framework, and the electromagnet is characterized in that the winding wire is a high-resistance enameled wire, the high-resistance enameled wire is an aluminum enameled wire or a copper-clad aluminum enameled wire, and the conversion relation between the high-resistance enameled wire and the wire diameter and the number of turns of the copper enameled wire is as follows for the electromagnet with the same specification and size: Conversion relation of wire diameters: ; The conversion relation of the turns is that N 1 = N/T; Wherein r 1 is the diameter of the high-resistance enameled wire, r is the diameter of the copper enameled wire adopted by the electromagnet of the specification, T is the ratio of the resistivity of the high-resistance enameled wire to the resistivity of the copper enameled wire, N 1 is the number of turns of the high-resistance enameled wire, and N is the number of turns of the copper enameled wire adopted by the electromagnet of the specification; A singlechip control circuit is also encapsulated in the electromagnet; The single chip microcomputer control circuit comprises a 51 single chip microcomputer and a full-bridge rectifying circuit, wherein an A end of a resistor R1 is connected with an anode and a B end of the resistor R1 is directly connected with a VCC pin of the single chip microcomputer, a voltage stabilizing diode D6 is connected with a B end of a resistor RI, the other end of the resistor R1 is connected with a cathode of the resistor RI, a GND end of the single chip microcomputer is connected with a cathode of the resistor R2, the B end of the resistor R3 is connected with a 3 pin of the single chip microcomputer, the A end of the resistor R3 is connected with the B end of the resistor R2, the B end of the resistor R3 is grounded, the 7 pin and the 8 pin of the single chip microcomputer are output pins, the output pins of the 7 and the 8 pin are identical, the output pins of the single chip microcomputer is connected with a base electrode of a triode Q3 through a current limiting resistor, the output pin of the single chip microcomputer 7 is connected with a base electrode of the triode Q3 through a current limiting resistor R4, the output pin of the single chip microcomputer is connected with the base of the triode Q3 through a current limiting resistor R4, the MOS is connected with the base of the triode Q3 through a current limiting resistor R5, the MOS is connected with the MOS 2 through the base of the triode Q3, the MOS 2 is connected with the MOS 2 through the drain electrode of the MOS 2, the MOS 2 is connected with the MOS 2, the MOS 2; The control program in the singlechip is used for controlling the singlechip to output low level within a certain period of time after the singlechip is electrified, the two ends of a coil of an electromagnet under the low level output are close to power supply voltage, the electromagnet is attracted within the period of time, PWM oscillating waves are output after the period of time is exceeded, the MOS tube Q2 is continuously conducted and disconnected, and the power consumption generated by the current passing through the coil of the electromagnet when the PWM oscillating waves are output is smaller than or equal to the power consumption generated when the electromagnet of the specification adopts copper enameled wires.
2. An optimized electromagnet as set forth in claim 1, wherein said electromagnet is a 24V DC electromagnet.
3. The optimized electromagnet of claim 2, wherein the single chip microcomputer 3 pin has an ADC function.
4. An optimized electromagnet according to claim 3, wherein the ratio of the resistor R2 to the resistor R3 is 9:1, the electromagnet is a wide-voltage electromagnet, and the input voltage is 18V to 32V.
5. The optimized electromagnet of claim 1, wherein all resistors used in the SCM control circuit have resistance values not greater than 10KΩ.

Description

Optimized electromagnet Technical Field The invention relates to an electromagnet, in particular to an electromagnet with optimized cost, performance and the like, and belongs to the technical field of modern equipment control elements. Background In the control of the extensive automation equipment of electro-magnet, along with the continuous development in market, market demand electro-magnet price is lower and lower, but the performance can not reduce but is higher and higher, satisfies electro-magnet cost reduction requirement through carrying out optimal design on traditional electro-magnet and is more and more difficult to realize, consequently need subvert the design to traditional electro-magnet and satisfy market demand. The electromagnet mainly comprises a magnetic core pipe and an electromagnetic coil, the magnetic core pipe is mainly formed by machining a magnetic conduction material and a magnetism isolating material, and the cost is relatively fixed and the optimization space is relatively small. The electromagnetic coil is composed of an enamelled copper wire and a magnetic yoke, the cost is mainly material cost, wherein the proportion of the cost of the whole electromagnet is larger and larger along with the continuous rising of the copper price of the enamelled copper wire, and the main scheme for reducing the cost of the copper material in the market at present is to replace copper by aluminum, namely, aluminum wires or copper-clad aluminum wires are used for replacing copper wires. If aluminum is directly used instead of copper and other changes are not made, the resistivity of the coil is higher than that of copper, the resistance of the coil is increased, the magnetic potential is reduced, the thrust of the electromagnet is difficult to meet the requirement, more turns of winding are needed if the original electromagnet thrust requirement is met, the volume of the electromagnetic coil is increased, and the appearance size of the electromagnet is enlarged. However, the conventional electromagnet has been widely applied in the market for more than 50 years, the appearance shape has been accepted by the market, the installation space of the electromagnet is designed according to the existing appearance size when a lot of devices are designed, and all the ways of increasing the appearance size of the electromagnet to ensure the original performance of the electromagnet cannot be executed at all from the market, so that on the basis of the existing appearance size of the electromagnet, the cost can be reduced, the performance of the electromagnet can be ensured, and the electromagnet is one of the important contents of the research and development innovation of the electromagnet technology. Disclosure of Invention The present invention provides an optimized electromagnet that addresses the above-identified problems with existing electromagnets. The technical scheme is that the optimized electromagnet comprises a magnetic core tube and a coil, wherein the coil is formed by winding a wire on a framework, the wire is a high-resistance enameled wire, the high-resistance enameled wire is an aluminum enameled wire or a copper-clad aluminum enameled wire, and the conversion relation between the high-resistance enameled wire and the wire diameter and the number of turns of the copper enameled wire is as follows for the electromagnet with the same specification and size: Conversion relation of wire diameters: ; The conversion relation of the turns is that N 1 = N/T; Wherein r 1 is the diameter of the high-resistance enameled wire, r is the diameter of the copper enameled wire adopted by the electromagnet of the specification, T is the ratio of the resistivity of the high-resistance enameled wire to the resistivity of the copper enameled wire, N 1 is the number of turns of the high-resistance enameled wire, and N is the number of turns of the copper enameled wire adopted by the electromagnet of the specification; A singlechip control circuit is also encapsulated in the electromagnet; The single chip microcomputer control circuit comprises a 51 single chip microcomputer and a full-bridge rectifying circuit, wherein an A end of a resistor R1 is connected with an anode and a B end of the resistor R1 is directly connected with a VCC pin of the single chip microcomputer, a voltage stabilizing diode D6 is connected with a B end of a resistor RI, the other end of the resistor R1 is connected with a cathode of the resistor RI, a GND end of the single chip microcomputer is connected with a cathode of the resistor R2, the B end of the resistor R3 is connected with a 3 pin of the single chip microcomputer, the A end of the resistor R3 is connected with the B end of the resistor R2, the B end of the resistor R3 is grounded, the 7 pin and the 8 pin of the single chip microcomputer are output pins, the output pins of the 7 and the 8 pin are identical, the output pins of the single chip microcomputer is connected wi