Heat dissipation casing assembly for motor and manufacturing method

A manufacturing method and casing technology, which are applied in the directions of electric components, electrical components, and motor generators, etc., can solve the problems of difficulty in meeting the requirements of explosion-proof electric motors, inability to meet the strength requirements of electric motors, and unsatisfactory economic benefits, so as to speed up the production response. The effect of speed, reduction of inventory types, and shortening of production cycle

Active Publication Date: 2020-09-11
JIANGMEN OCEAN POWER DIGITAL MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] like Figure 7 Shown is the extruded extrusion casing 8, which has the following disadvantages: the material of the extrusion casing is generally aluminum alloy, and the commonly used grade is 6063-T5, and the yield strength of the material is only 145Mpa, and the strength is low. Unable to meet the strength requirements of large-volume, high-torque motors
Moreover, the aluminum casing is subject to more restrictions in the field of explosion-proof motors, and it is difficult to meet the requirements of explosion-proof motors.
In addition, the extruded casing requires a special extruder for processing, and the large-sized extrusion die requires an extruder with a large tonnage pressure. There are few extruders with a large tonnage pressure in China, and the production cycle is relatively long and expensive.
[0004] like Figure 8 , Figure 9 Shown is the casting casing 9 formed by casting, which has the following disadvantages: the material of the casting casing is generally cast iron, and one mold of the casting casing can only produce casings of one structural size. A variety of molds are required for the shell, resulting in a large number of molds and high costs
Moreover, the casing casting cycle is long and the inventory pressure is high
[0005] It can be seen that when the casing of integral casting or extrusion molding is faced with the demand of multiple models and multiple power stages, it is necessary to manufacture multiple sets of molds with different specifications. For small-batch motor products, such economic benefits are not ideal. The mold cost is also relatively high

Method used

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  • Heat dissipation casing assembly for motor and manufacturing method
  • Heat dissipation casing assembly for motor and manufacturing method
  • Heat dissipation casing assembly for motor and manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0060] This embodiment provides a method for manufacturing a heat dissipation casing assembly for a motor. The heat dissipation module adopts a liquid cooling heat dissipation module 610 (such as Figure 2-Figure 3 shown).

[0061] such as 1 and figure 2 As shown, the housing 1 used for the motor in this embodiment is a housing with a cavity for housing the internal components of the motor, which is cut from a hollow elongated steel pipe section. In the actual production process, according to actual needs, a section of pipe body can be cut from a long steel pipe to be used as the housing 1 of the motor. Through such an operation, the problem of making multiple molds when producing motors of different lengths can be avoided, thereby reducing the production cost of making molds.

[0062] And as figure 2 As shown, the radiator 600 of this embodiment is ring-shaped and arranged on the outer surface of the housing 1. The radiator 600 is formed by splicing two or more arc-shape...

Embodiment 2

[0092] This embodiment provides a method for manufacturing a heat dissipation casing assembly for a motor. The difference from Embodiment 1 is that the radiator of this embodiment is an air-cooled radiator.

[0093] Such as Figure 6 As shown, the heat sink 600 of this embodiment is formed by splicing a plurality of air-cooled heat dissipation modules 620 with fins in pairs, and when spliced, adjacent heat dissipation modules are connected by an elastic connection structure. When multiple motor housings 1 with different diameters need to be matched, the diameter of the annular body surrounded by the radiator can be adjusted by increasing or decreasing the number of heat dissipation modules 620 in the radiator.

[0094] Such as Figure 6 As shown, the air-cooled heat dissipation module 620 includes an arc-shaped arc-shaped plate 621 extruded from aluminum, radially outwardly protruding cooling fins 622 arranged on the outer wall of the arc-shaped plate 621, and arranged on the...

Embodiment 3

[0102] This embodiment provides a heat dissipation casing assembly for a motor, such as figure 2 , Figure 6 As shown, the cooling case assembly of the present embodiment includes:

[0103] It has a housing 1 for housing the cavity of the internal components of the motor;

[0104] A plurality of arc-shaped heat dissipation modules arranged on the outer periphery of the casing, the plurality of heat dissipation modules can be assembled to form a radiator that surrounds the exterior of the casing and can dissipate heat from the casing;

[0105] An elastic connection structure for connecting two adjacent heat dissipation modules among the plurality of arc-shaped heat dissipation modules, so that the heat sink can automatically adapt to the thermal expansion and contraction of the motor housing.

[0106] Wherein, the housing 1 can be formed by cutting the strip-shaped steel pipes described in the above embodiments, or can be made by other methods, such as casting.

[0107] Whe...

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Abstract

The invention discloses a manufacturing method of a heat dissipation casing assembly for a motor, and the method comprises the steps: forming a shell, in which a cavity for placing an internal component of the motor is formed, through cutting a long-strip-shaped steel pipe; arranging more than two arc-shaped heat dissipation modules on the periphery of the formed shell, so that a heat dissipationdevice which surrounds the outer part of the shell and can dissipate heat of the shell is formed through the heat dissipation modules; in the process that the arc-shaped heat dissipation modules are arranged on the periphery of the shell, every two adjacent heat dissipation modules being connected together through an elastic connection method, so that the formed heat dissipation device can automatically adapt to heat expansion and cold contraction of the motor shell. According to the method, the shell of the motor is formed by cutting the steel pipe according to the specification requirement of the motor, molds of various different specifications do not need to be manufactured, the radiator outside the shell is formed by splicing the multiple cooling fins, the cooling fins are easy to machine, and the spliced radiator can adapt to heat expansion and cold contraction of the motor. In addition, the invention also provides a heat dissipation casing assembly for the motor.

Description

technical field [0001] The invention relates to the technical field of electric motors, in particular to a cooling case assembly for electric motors and a manufacturing method. Background technique [0002] The motor includes an organic casing, a stator and a rotor arranged in the cavity of the casing, end covers arranged at both ends of the casing and a radiator arranged outside the casing. The inside of the casing is a hollow structure, which is generally processed by one-piece casting or extrusion molding. [0003] Such as Figure 7 Shown is the extruded extrusion casing 8, which has the following disadvantages: the material of the extrusion casing is generally aluminum alloy, and the commonly used grade is 6063-T5, and the yield strength of the material is only 145Mpa, and the strength is low. It cannot meet the strength requirements of the motor with large volume and high torque. Moreover, the aluminum casing is subject to more restrictions in the field of explosion-p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/14H02K5/04H02K5/20H02K5/18H02K9/22
CPCH02K15/14H02K5/04H02K5/20H02K5/18
Inventor 石华山
Owner JIANGMEN OCEAN POWER DIGITAL MOTOR
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