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dc-dc converter ventilation cooling device

A DC-DC, ventilation and heat dissipation technology, applied in the direction of output power conversion device, cooling/ventilation/heating transformation, electrical components, etc., can solve the problem of difficult heat dissipation of electronic fans, high overall energy consumption of the vehicle, and unfavorable ride comfort and other issues to achieve the effect of improving cooling effect, increasing service life and reducing energy consumption

Active Publication Date: 2020-11-24
DONGFENG LIUZHOU MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a DC-DC converter ventilation and heat dissipation device, which can solve the problem that the electronic fan in the DC-DC converter ventilation and heat dissipation device continues to run at high speed. And there is a lot of noise, which is unfavorable to the ride comfort and the overall energy consumption of the vehicle is high, so as to protect the DC-DC converter system and the user's maintenance safety

Method used

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0029] figure 1 and figure 2 What is shown is a schematic diagram of an existing cooling device for a DC-DC converter and its installation position in the nacelle. This structure has many problems as described in the background art, which will not be repeated here.

[0030] Figure 3 to Figure 6 The shown DC-DC converter ventilation and heat dissipation device includes a DC-DC converter body 6 installed on the DC-DC converter fixing bracket 3, an electronic fan 4 installed on the DC-DC converter body 6, and is provided with Diameter 6mm, hole pitch 28mm, heat dissipation cover plate 1 with multiple ventilation holes distributed in any adjacent diagonal four holes in a square shape is covered on the top surface of the DC-DC converter body 6, connected to the DC-DC by three bolts On the fixed bracket 3 of the converter, in order to improve the heat dissipation e...

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Abstract

The invention discloses a DC-DC converter ventilation and heat dissipation device, which relates to the field of automobile manufacturing. The DC-DC converter ventilation and heat dissipation device comprises a DC-DC converter body mounted on a DC-DC converter fixing support and an electron fan mounted on the DC-DC converter body, wherein the top surface of the DC-DC converter body is coated witha heat dissipation cover plate; an air outlet end of a guide duct is arranged right above the electron fan; the air outlet end of the guide duct is sleeved with a streamlined guide duct with an air flow buffer structure; and the air inlet of the streamlined guide duct is provided with a filtering device with functions of dust removal and water removal. The problems that the existing DC-DC converter ventilation and heat dissipation device is likely to be burnt down as self heat dissipation is hard to be carried out in the case of continuous and high-speed operation of the electron fan, the service life is reduced, large noise is unfavorable to the riding comfort, the overall energy consumption of the whole vehicle is relatively high, and bare electric shock and cabin maintenance damage risks occur can be solved.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a ventilation and heat dissipation device for a DC-DC converter used in a vehicle. Background technique [0002] The DC-DC converter is a device in the 48V system of the car, which can convert the high voltage output by the IBSG motor into a low voltage to charge the 12V battery, so as to provide electric energy for the car electrical appliances. The operating temperature of the DC-DC converter is generally -40°C to 80°C. At present, DC-DC converters are generally installed in the car cabin, because the cabin is relatively closed and not conducive to ventilation. When the car is working normally, the ambient temperature of the cabin is generally higher than 100°C, which exceeds the ambient operating temperature of the DC-DC converter, resulting in DC- The working efficiency of the DC converter is reduced and the life span is reduced. In order to solve the heat ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K7/20H02M1/00
Inventor 袁恒韦跃亮张学明徐光恒汪宇航
Owner DONGFENG LIUZHOU MOTOR
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