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Permanent magnetic DC pump motor

A permanent magnet direct current, pump motor technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of high speed, motor heating, small torque, etc., to reduce the electric load and current density, improve the working system, The effect of reducing the stator flux density

Inactive Publication Date: 2010-07-14
陕西秦航机电有限责任公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to avoid the deficiencies of the prior art, the present invention proposes a permanent magnet DC pump motor, which solves the problems of heat generation, small torque, and high speed of the motor, and achieves long time (S2=8min), high torque 2.1N.m, and low speed 2200r / min hydraulic pump requirements

Method used

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Examples

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Embodiment Construction

[0028] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0029] This example is 3.26 inches Diameter 12V / 24V 500W permanent magnet DC pump motor, see the general structure of the motor figure 1 : Including casing 2, magnetic steel 3, brush holder plate 1 and armature punching plate 4. It is characterized in that the design scheme of the components is as follows:

[0030] Insulation material of the motor: H-class (185°C) insulation is used, and insulation material with high heat resistance level is used to enable the motor to withstand high temperature rise and further improve its working system.

[0031] Chassis such as figure 2 : 4mm thick 10# steel pipe is used, the thickness of the yoke is increased by 53%, the magnetic permeability of the material is increased, the magnetic permeability of the material is increased by 1 / 3, the magnetic density of the stator is reduced, and the heating of the stator is reduced....

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Abstract

The invention relates to a permanent magnetic DC pump motor which comprises an enclosure 2, magnetic steel 3, a brush frame plate and an armature stamping 4, and is characterized in that the armature stamping 4 is in a peariformslot structure, the enclosure 2 adopts No. 10 steel tubes with the thickness of 3.5-4mm, the magnetic steel 3 adopts ferrite Y40 or Y35, the thickness of the magnetic steel is designed to be 9.5-10mm, the brush frame plate 1 adopts a thermosetting material FX-501 phenolic aldehyde glassfiber plastic with the withstanding temperature of 170 to 190 DEG C, and the insulating material of the motor adopts H class insulation with the temperature of 170 to 180 DEG C. The motor of the invention solves the problems of calorification, small moment, high rotate speed of the motor, and reaches the use requirements of a hydraulic pump, such as long time (S2 = 8min), large moment of 2.1N.m and low rotate speed of 2200r / min.

Description

technical field [0001] The invention relates to a permanent magnet DC pump motor, which meets the requirements of a hydraulic pump with a long time (S2=8min), a high torque of 2.1N.m and a low rotational speed of 2200r / min. Background technique [0002] DC pump motors for hydraulic power units are mainly used in hydraulic lifts, forklifts, dump trucks, tailgates and other equipment. 3 inches available on the market The diameter of 12V / 24V 500W permanent magnet DC pump motor has short working time (S2=2min), small torque and high speed of 5000r / min. Can not meet the long-time (S2 = 8min), high torque, low speed (2200r / min) hydraulic pump use requirements. [0003] The existing permanent magnet DC pump motor adopts the following structure: [0004] 1. The insulation and heat resistance grade of the motor adopts Class B (130°C) insulation, and the temperature of the insulating material is low. When the motor runs for a long time, due to the high temperature, the insulating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/26H02K1/02H02K5/04H02K5/14
Inventor 李翠兰崔艳艳南新兴张红梅张小妮程艺萍韩菲
Owner 陕西秦航机电有限责任公司
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