DC/DC converter

A converter and radiator technology, applied in instruments, converting DC power input to DC power output, adjusting electrical variables, etc., can solve the problems of unsatisfactory heat dissipation effect, poor anti-interference ability of control box, large size, etc., to achieve ventilation Good heat dissipation effect, increase anti-interference ability, high weight ratio power effect

Inactive Publication Date: 2003-06-18
CHANGSHA CRRC INTELLIGENT CONTROL & NEW ENERGY TECH CO LTD
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  • Abstract
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Problems solved by technology

[0003] The traditional DC/DC converter structure generally adopts steel chassis or cabinets, which are large in size and heavy in weight. The components are layered and arranged in separate boxes, occupying a large space, the layout of components is scattered, the wiring is long, and the anti-interference ability is poor. , the radiator is mostly made of extruded aluminum profile, the processing cost is high, and the heat dissipation effect is not ideal
Most of the heat dissipation air ducts are built-in air ducts. The air ducts are located in the surface of the components. Affected by the unevenness and size of the components, the heat dissipation effect is poor. In addition, the surface

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Embodiment Construction

[0017] Accompanying drawing has provided a kind of specific embodiment of the present invention, now in conjunction with accompanying drawing, the present invention is further described: can find out from accompanying drawing, the present invention comprises radiator assembly 6, connection bus bar assembly 2, current sensor 4, switch Element 12, electromagnetic conversion element assembly 9, fan assembly 11, bus bar assembly 14, capacitor assembly 15, absorption assembly 16 and control box 8 are characterized in that all components of the DC / DC converter are sealed in a cover In the airtight cavity 18 with shielding function formed by the board assembly 1, all components are completely sealed on the surface, and adopt an integrated design, and the overall flat installation is adopted. The overall installation adopts a central installation method, and all components are installed in the One side of the radiator plate 19, and the control box 8 and the electromagnetic conversion e...

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Abstract

A DC/DC converter features that its all devices are installed to one side of radiator plate in seal mode. The control box and electromagnetic conversion assembly are individually shielded by a secondary shielding structure. The shielding box of electromagnetic conversion assembly is filled by thermal conductive filler. Its advantages are light weight, small size, high anti-interference power, and high heat dissipating effect.

Description

1. Technical field [0001] The invention belongs to a DC / DC converter, in particular to a DC / DC converter used in electric vehicles 2. Technical background [0002] The DC / DC converter converts a fixed DC voltage into a variable DC voltage, or raises and lowers a DC voltage to another stable DC voltage. DC chopping can not only regulate and stabilize the voltage, but also effectively suppress the harmonic current on the grid side. It can be widely used in stepless speed change of trolleybuses, subway trains, and battery-powered motor vehicles, as well as the power supply step-down and voltage stabilization control of emerging electric vehicles, so that the above-mentioned controls can achieve stable acceleration and fast response performance. And at the same time receive the effect of saving electric energy. [0003] The traditional DC / DC converter structure generally adopts steel chassis or cabinets, which are large in size and heavy in weight. The components are layered a...

Claims

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Application Information

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IPC IPC(8): H02M1/00H02M3/00H05K7/20H05K9/00
Inventor 李晓光伍理勋郭淑英刘连根
Owner CHANGSHA CRRC INTELLIGENT CONTROL & NEW ENERGY TECH CO LTD
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