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Heat radiation cover plate

A technology of heat dissipation cover plate and heating element, which is applied in cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve problems such as improvement of heat dissipation cover plate, and achieve the effect of increasing heat dissipation, effectively absorbing and prolonging flow time.

Inactive Publication Date: 2014-12-24
CHENGDU YUYA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the shape of the motor body has been improved, the heat dissipation cover has not been improved, and the heat dissipation capacity of the heat dissipation cover still has room for further improvement.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see figure 1 , figure 2 , image 3 , Figure 4 As shown, a heat dissipation cover plate includes: a body 2, a first installation part 4, a bending area 41 arranged on the first installation part, a second installation part 5, a bending area 51 arranged on the second installation part, the body The airflow disturber set on the inner wall of 2 is a drop-shaped protrusion 1, and the density of the water-drop-shaped protrusion 1 is 18 pieces / dm 2 , the outer surface of the main body 2 forms a corresponding water drop-shaped concave surface, and the water drop-shaped protrusions are alternately arranged in rows. The drop-shaped protrusion 1 provided on the inner wall of the body 2 can promote the cooling air flow between the heat dissipation cover body 2 and the motor 3 to form a vortex area, and improve the heat dissipation efficiency of the motor 3 . The drop-shaped protrusions arranged on the inner wall of the main body 2 are arranged alternately between rows, which ...

Embodiment 2

[0038] The difference between this embodiment and the first embodiment is that the density of the drop-shaped protrusions provided on the cooling plate body is 9 pieces / dm 2 Correspondingly, in the comparison test of the heat dissipation effect of the heat dissipation cover on the motor, the setting of the No. 1 motor remains unchanged, and the density of the drop-shaped protrusions of the No. 2 motor is 9 / dm 2 , the experimental results are as follows:

[0039]

[0040] It can be seen from this that the rows of drop-shaped protrusions set on the inner wall of the heat dissipation cover body are arranged alternately, with a density of 9 pcs / dm 2 At this time, the machine temperature of the motor can be reduced to 78 ° C ~ 84 ° C, to achieve the purpose of improving the heat dissipation power of the motor, but compared with Example 1, the density of water drop-shaped protrusions is 9 / dm 2 when its density is 18 / dm 2 The cooling capacity is lower.

Embodiment 3

[0042] The difference between this embodiment and the first embodiment is that the density of the drop-shaped protrusions provided on the cooling plate body is 27 pieces / dm 2 Correspondingly, in the comparison test of the heat dissipation effect of the heat dissipation cover on the motor, the setting of the No. 1 motor remains unchanged, and the density of the drop-shaped protrusions of the No. 2 motor is 27 / dm 2 , the experimental results are as follows:

[0043]

[0044] It can be seen from this that the rows of drop-shaped protrusions set on the inner wall of the heat dissipation cover body are alternately arranged, and the density is 27 pieces / dm 2 At this time, the temperature of the motor can be reduced to 76 ° C ~ 83 ° C, to achieve the purpose of improving the heat dissipation power of the motor, but compared with Example 1, the density of water drop-shaped protrusions is 27 / dm 2 when its density is 18 / dm 2 The cooling capacity is lower.

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Abstract

The invention provides a heat radiation cover plate. The heat radiation cover plate comprises a heat radiation cover plate body (2), a first mounting portion (4), a bending area (41), a second mounting portion (5), a bending area (51) and water drop shaped projections (1). The first mounting portion (4) is provided with the bending area (41), the second mounting portion (5) is provided with the bending area (51), and the water drop shaped projections (1) serving as airflow turbulence articles are arranged on the inner wall of the heat radiation cover plate body (2). The water drop shaped projections (1) are in staggered arrangement in rows to prompt cooling airflow between the heat radiation cover plate and a heating element to form vortexes, and accordingly flowing time of the cooling airflow in a heat radiation gap between the heat radiation cover plate and the heating element is prolonged, and heat radiation efficiency of the heating element is improved.

Description

technical field [0001] The invention relates to a heat dissipation cover, in particular to a heat dissipation cover specially used for heat dissipation of a motor. Background technique [0002] Electric motor is a commonly used rotary electric machine that converts electrical energy into mechanical energy, and is widely used in various aspects of modern social life. During the use of the motor, due to the existence of various losses, its temperature continues to rise. If the heat dissipation capacity of the motor is poor, it will affect the normal operation and service life of the motor, and even threaten the life safety of the operator in severe cases. Therefore, it is very important to cool the motor. [0003] At present, there are three main cooling methods for electric motors: self-cooling, self-fan cooling and forced cooling. The self-cooling type does not have any auxiliary devices, and completely relies on the spontaneous flow of outside air to cool the motor. The h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/14
Inventor 李连凯向红先
Owner CHENGDU YUYA TECH
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