CN206180865U - Pull contravariant copped wave power module - Google Patents

Abstract

The utility mode relates to a pull contravariant copped wave power module has solved current pull contravariant copped wave power module because the design is unreasonable and has had that the converter is with high costs, the operation degree of difficulty reaches the loaded down with trivial details problem of overhauling step greatly. Liquid cooling ware tow sides all are connected with the frame, are provided with the screw rod on the frame, and the positive and negative of liquid cooling ware all is fixed with IGBT and IGBT drive plate, is the composite bus A top provided with DC+ binding post, DC binding post, copped wave binding post and W looks binding post, is the composite bus B top provided with DC+ binding post, DC binding post, U looks binding post and V looks binding post. The utility model discloses having reduced the whole overall dimension of module, having saved module installation space in the converter, promoted economic benefits greatly, integrated contravariant, copped wave, drive control, fault detection function have higher integrated characteristic moreover.

Description

One kind traction inversion chopped power module

Technical field

This utility model is related to floor car trailer system technical field, specially a kind of traction inversion chopped power module.

Technical background

Low floor vehicle because its environmental protection, it is convenient and swift the characteristics of be widely applied in Europe, with China city The propulsion of city's process, it to invest little, instant effect advantage, is increasingly paid close attention to by domestic city again, and progresses into Fast-developing period, but China develops weakness relatively in low floor vehicle technical applications, and many key technologies are still immature, special It is not that Full Vehicle System controls this core technology, the further investigation of the design that needs.

In current art scheme, traction power module input voltage is DC750V, and main circuit topology is changed using straight-alternation, Module installs Support Capacitor additional for DC filtering, and slow play resistance discharges Support Capacitor.Inversion+chop section adopts water-cooled Substrate is radiated, and IGBT constitutes three-phase inverter bridge circuit, is that alternating voltage supplies separate unit Permanent Magnet and Electric by DC loop inversion Machine.

Though existing module can meet design requirement, suffer from the drawback that：

1st, module I GBT adopts on a heat sink the single symmetric configuration of positive and negative, increased fansink designs length, causes Current transformer installing space is taken, increases current transformer design cost.

2nd, module installs Support Capacitor and outlet side current sensor additional, increases module own wt, and module is being tieed up Support Capacitor need in the lump be dismounted during shield maintenance, increased task difficulty.

3rd, driving plate is installed on IGBT tops, when module output phase failure, need to be to just carrying out after driving plate dismounting IGBT detections, easily cause the damage of driving plate during dismounting, and increased the operating procedure of module maintenance.

The content of the invention

This utility model in order to solve it is existing traction inversion chopped power module due to design it is unreasonable exist current transformer into The problem that this height, task difficulty are big and maintenance step is loaded down with trivial details, there is provided one kind traction inversion chopped power module.

This utility model is achieved through the following technical solutions：One kind traction inversion chopped power module, including water-cooled Radiator, composite bus bar A, composite bus bar B, water-filled radiator tow sides are respectively connected with framework, are provided with framework and unsteady flow The screw rod that device is fixed, the positive and negative of water-filled radiator is respectively and fixedly provided with four pieces of IGBT that are perpendicular and being arranged symmetrically, water-cooling The positive and negative of device is respectively and fixedly provided with a pair symmetrically arranged IGBT driving plates, and composite bus bar A is parallel with composite bus bar B to be fixed on water-cooled IGBT upper ends of radiator positive and negative and in corresponding framework, composite bus bar A tops are provided with DC+ binding posts, DC- and connect Line terminals, copped wave binding post and W connect line terminals, and composite bus bar B tops are provided with DC+ binding posts, DC- binding posts, U The line terminals that connect and V connect line terminals.

The structure design is installed based on water-filled radiator double-sided symmetrical, the positive pole of two composite bus bars and positive pole, negative pole with Negative pole superposition provides DC source for module, wherein, water-filled radiator one side is copped wave phase and W phases, another side be U phases and V phases, all phase terminals and positive and negative terminal are all located at module top, and power connector also is located at module top, facilitates external connection, IGBT drive control plates receive TCU signals by power connector, respectively four phase place bridges of control and its homonymy；

Framework top is provided with power connector and handle.

The quantity of screw rod is three, and triangular shape is fixed.

Framework is by made by OCr18Ni9 frosted corrosion resistant plates.

There is following beneficial effect in this utility model：Module monnolithic case size is reduced, module in current transformer is saved Installing space, greatly improves economic benefit, and integrated inverse, copped wave, drive control, fault detection capability are, tool Have higher Integrated Trait, at the same have the advantages that compact conformation, it is easy to maintenance, be easy to safeguard.

Description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the schematic front view of Fig. 1；

Fig. 3 is the schematic side view of Fig. 2；

Fig. 4 is the schematic top plan view of Fig. 2；

Fig. 5 is the principle schematic of Fig. 1；

Fig. 6 is the structural representation of Fig. 1 middle frames；

Fig. 7 is the structural representation of water-filled radiator in Fig. 2.

In figure：1- water-filled radiators, 2- frameworks, 3- composite bus bar B, 4- composite bus bar A, 5- IGBT driving plates, 6- spiral shells Bar, 7- water-filled radiator water inlets, 8- water-filled radiator outlets, 9 handles, 10- power connectors, 11-IGBT, 12-DC+ connects Line terminals, 13-DC- binding posts, 14- copped wave binding posts, 15-U connects line terminals, and 16-V connects line terminals, and 17-W connects Line terminals.

Specific embodiment

One kind traction inversion chopped power module, including water-filled radiator 1, composite bus bar A4, composite bus bar B3, water-cooled dissipates The tow sides of hot device 1 are respectively connected with framework 2, be provided with framework 2 with current transformer fix screw rod 6, water-filled radiator 1 it is positive and negative Face is respectively and fixedly provided with four pieces of IGBT11 that are perpendicular and being arranged symmetrically, the positive and negative of water-filled radiator 1 be respectively and fixedly provided with a pair it is symmetrical The IGBT driving plates 5 of setting, composite bus bar A4 is parallel with composite bus bar B3 to be fixed on the IGBT11 of the positive and negative of water-filled radiator 1 Hold and in corresponding framework 2, composite bus bar A4 tops are provided with DC+ binding posts 12, DC- binding posts 13, copped wave and connect Line terminals 14 and W connect line terminals 17, and composite bus bar B3 tops are provided with DC+ binding posts 12, DC- binding posts 13, U and connect Line terminals 15 and V connect line terminals 16.

The top of framework 2 is provided with power connector 10 and handle 9；The quantity of screw rod 6 is three, and triangular shape is fixed； Framework 2 is by made by OCr18Ni9 frosted corrosion resistant plates.

In specific implementation process, framework 2 has been selected made by the OCr18Ni9 frosted Thin Stainless Steel steel plates that thickness of slab is 3mm； Framework 2 adopts shape extrusion molding, welding locally to press-fit riveting nut, and it is bolt fastening with water-filled radiator 1 that framework 2 is overall Mode, securing member adopts zinc-plated securing member.

Main circuit component is connected using composite bus bar A4 and composite bus bar B3, effectively reduces stray inductance；IGBT driving plates 5 The reliability of module is improve, strengthens capacity of resisting disturbance, and reduce module thickness space.

Module is radiated using water-filled radiator 1, and whole water-cooling system is protected, and water-filled radiator 1 installs water Cold head is bottom in and top out, i.e. water-filled radiator water inlet 7 and water-filled radiator outlet 8.

Low voltage control wiring is connected using 0.5mm cables with modular power source adapter 10, and power connector 10 is installed on mould Block top, low voltage wiring technique is using ripe Wiring technique method.

Module mounting arrangement is vertical installation, is fastened using 3 M10 screw rods 6 and current transformer bottom.

Module high voltage electric interfaces：VD is 750V, and one motor of AC three-phase output driving works；Module Low-voltage electrical interface：It is connected with the socket of modular power source adapter 10 by current transformer electric current connection plug, for driving plate power supply is provided And control signal.

Composite bus bar design is divided into 3 layers, not only meets the requirement of low sense, also makes module eliminate absorbing circuit, enters One step simplifies apparatus structure, mitigates weight, reduces volume；Water-cooling joint adopts fast insert-pull joint, it is not necessary to any bolt, leads to Connection is completed by crossing docking fastening.

Claims (4)

1. a kind of traction inversion chopped power module, including water-filled radiator（1）, composite bus bar A（4）, composite bus bar B（3）, its It is characterised by：Water-filled radiator（1）Tow sides are respectively connected with framework（2）, framework（2）On be provided with current transformer fix spiral shell Bar（6）, water-filled radiator（1）Positive and negative be respectively and fixedly provided with four pieces of IGBT that are perpendicular and being arranged symmetrically（11）, water-cooling Device（1）Positive and negative be respectively and fixedly provided with a pair symmetrically arranged IGBT driving plates（5）, composite bus bar A（4）With composite bus bar B（3）It is flat Row is fixed on water-filled radiator（1）The IGBT of positive and negative（11）Upper end and positioned at corresponding framework（2）It is interior, composite bus bar A（4）Top End is provided with DC+ binding posts（12）, DC- binding posts（13）, copped wave binding post（14）Connect line terminals with W（17）, it is multiple Close busbar B（3）Top is provided with DC+ binding posts（12）, DC- binding posts（13）, U connects line terminals（15）With V phase connections Terminal（16）.

2. one kind according to claim 1 draws inversion chopped power module, it is characterised in that：Framework（2）Top is arranged There is power connector（10）And handle（9）.

3. one kind according to claim 1 and 2 draws inversion chopped power module, it is characterised in that：Screw rod（6）Quantity For three, triangular shape is fixed.

4. one kind according to claim 1 and 2 draws inversion chopped power module, it is characterised in that：Framework（2）Be by Made by OCr18Ni9 frosted corrosion resistant plates.