JPS63283401A - Inverter for vehicle - Google Patents

Abstract

PURPOSE:To shorten wirings between equipments by disposing the equipments of phases at the same position and disposing them near a flon cooling unit. CONSTITUTION:A box frame 2 is partitioned by partition plates 3 to phase U, V and W in the traveling direction of a vehicle. A vent chamber and a sealed chamber are partitioned by a partition plate 4 in the lateral direction of the vehicle. A flon cooling units 6 are mounted at the centers at the same positions of the phases from the side face side of the vehicle, a current limiting reactor 11 is mounted at the top, and a snubber resistor 8 and a reset resistor 7 are mounted at both sides. A gate driver 9, an ACCT 12, and a DCT 21 are mounted at the same positions from the inspection holes A, B, C of the center on the back face in the phases. Further, a filter capacitor 10 is mounted uniformly in parallel to the traveling direction of the vehicle in the phases at opposite side of the holes.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an inverter device for a vehicle, and particularly to an arrangement of storage equipment suitable for reducing induced disturbances.

[Conventional technology]

Recent inverter devices are equipped with main circuit devices, such as fluorocarbon cooling units and filter capacitors that house the main circuit semiconductor elements, and gate controls that control them, in order to reduce wiring between sacrificed devices in order to prevent inductive failures. As shown in Fig. 6, control circuit equipment such as devices and relay panels are housed in an integral tube 2 that spans both sides of the vehicle 1 in the width direction, and an inspection hole is provided in the center of the vehicle 1. It's becoming more common.

For example, the inverter device described in Research Material RAT-86-4 of the Institute of Electrical Engineers of Japan also has such an integral cylinder. Fig. 7 is a wiring diagram of such a conventional device, Fig. 8 is a plan view, and Fig. 9 is a wiring diagram of such a conventional device.
The figure shows its front view, and FIG. 10 shows its side view.

Now, in FIGS. 7 and 8, one side is divided into U-phase, ■-phase, and W-phase, and a fluorocarbon cooling unit 6 is placed in the ventilation chamber of each phase, and a reset resistor 7 is placed above it. A snubber resistor 8 is placed on the side, and a gate drive device 9 and a filter capacitor 0' are placed in the sealed chamber on the back side so that inspection can be performed from the center.
are placed.

In addition, a current limiting reactor 11°ACC is installed in the center ceiling.
T12. A main circuit terminal block 13 is arranged.

Furthermore, a brake calculation device 1 is installed in the sealed chamber on the other side.
4. Gate control device 15. Relay panel 16° control circuit opener 18. The filter capacitor 0° test switch 20 is arranged, and the power supply device 17° DCPT21. Overvoltage suppressor 19
are placed.

[Problem that the invention seeks to solve]

In the above conventional device, the snubber resistor 8. Reset resistor 7
．． Goo 1-Drive device 9. Each device of the filter capacitor 10' is equipped with a Freon cooling unit 6 for each phase.
The current limiting reactor 1 is placed at the same position near the
1. ACCT12. Each device of DCPT21゜filter capacitor 0 is located far from the Freon cooling unit 6, and the distance is different for each phase, so the wiring between devices becomes long, which tends to cause electrical imbalance between phases, and the main There have been problems such as the possibility that the sudden current change caused by the ON-OFF state of the circuit semiconductor element may cause an inductive disturbance, which may have an adverse effect on the signaling equipment on the ground.

An object of the present invention is to eliminate electrical imbalance among the U-phase, ■-phase, and W-phase, minimize wiring between devices, and reduce inductive disturbances.

[Means for solving problems]

The above object is achieved by making the U, V, and W phase devices the same and arranging them as close to the fluorocarbon cooling unit 1- as possible, thereby shortening the wiring between the devices.

[Effect]

By arranging the equipment in each phase the same, electrical imbalance between the phases can be eliminated, and by shortening the wiring from the fluorocarbon cooling unit to each equipment, induction disturbances can be reduced.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

1 is a wiring diagram of an inverter device of the present invention, FIG. 2 is an electric circuit, FIG. 3 is a plan view, FIG. 4 is a front view thereof, and FIG. 3 is a side view thereof.

A box frame 2 is partitioned into U-phase, ■-phase, and W-phase by a partition plate 3 in the traveling direction of the vehicle.

Further, the vehicle is partitioned into a ventilation chamber and a sealed chamber by a partition plate 4 in the width direction of the vehicle.

Furthermore, inspection holes A and B are provided at the bottom of the center of the box frame 2.

C is provided and covered with an inspection cover 5.

In the ventilation chamber, a fluorocarbon cooling unit 6 is installed in the center at the same position for each phase from the side of the vehicle, and a current limiting reactor 11 is installed above it. A snubber resistor 8 and a reset resistor 7 are attached to both sides thereof.

In addition, on the back of this, there is a gate drive device [i! 9. ACCT12, DCP
T21 is attached, and on the opposite side of this inspection hole, filter capacitors 10 are attached equally to each phase parallel to the running direction of the vehicle.

This is to ensure a large space for the inspection hole and at the same time to make the wiring length to the fluorocarbon cooling unit 6 equal to each phase and to be the shortest. The main circuit equipment group described above, including the wiring between them, is constructed in exactly the same way for the U-phase, ■-phase, and W-phase.

By arranging them in this way, it is possible to eliminate electrical imbalance between the phases and also to standardize the hardware components.

Furthermore, by shortening the wiring length, it is possible to reduce induction disturbances to terrestrial signaling equipment.

Also, in the sealed chamber on the other side, a brake calculation device 14. Gate control device 15. Relay panel 16, power supply device 17. Control circuit opener 18. Overvoltage suppressor 19. Test switches 20, etc. are arranged.

In this way, control circuit equipment that requires inspection and switches that require operation are placed on the side of the vehicle body to facilitate maintenance.

In addition, the arrangement in this case is the test switches 20. Overvoltage suppressor 19. Control circuit opener 1
8. Power supply device 17. Relay panel 16° Gate control device 15
．． Arrange in the order of brake calculation bag @14.

By arranging the devices in this manner, there is little difference in noise level between adjacent devices, so malfunctions due to noise in each device can be prevented.

In addition, a wiring duct 22 for the control circuit that spans each device is provided at the top of this sealed room, and by protruding from the top of the box frame 2, it can be isolated from the main circuit, so the control circuit wiring 23 Noise from the main circuit can be prevented.

Furthermore, since the storage space for equipment is increased, it is also effective in lowering the floor of the vehicle.

The embodiments of the present invention have the following effects.

(1) By arranging the main circuit equipment group in exactly the same way for U-phase, ■-phase, and W-phase, it is possible to eliminate electrical imbalance between phases and reduce induction disturbances to ground signal equipment. .

(2) By arranging control circuit devices and the like in order from devices with a high noise level to devices with a low noise level, it is possible to prevent malfunctions of each device due to noise.

(3) Install a wiring duct for the control circuit at the top of the sealed room,
By protruding from the top of the box frame, the control circuit wiring can be isolated from the main circuit, so there is no malfunction due to noise, and a more reliable device can be provided.

〔Effect of the invention〕

According to the present invention, the U-phase, ■-phase, and W-phase equipment can be arranged in exactly the same way, and the wiring between the equipment can be made as short as possible. It is possible to reduce the induced disturbance to the

[Brief explanation of the drawing]

FIG. 1 is a wiring diagram of an embodiment of the inverter device of the present invention, FIG. 2 is an electric circuit diagram of FIG. 1, FIG. 3 is a plan view showing the structure of FIG. 1, and FIG. The front view of the figure, Figure 5 is the 3rd
6 is a sectional view of a vehicle equipped with this inverter device, FIG. 7 is a wiring diagram of a conventional inverter device,
8 is a plan view showing the structure of FIG. 7, FIG. 9 is a front view of FIG. 8, and FIG. 10 is a side view of FIG. 8. 1st Figure 6... Freon, TGP unit 7... Reset vL zo 1 / l... Kuma Shitori act) 21- DC, PT 72- ACCT 21... DCFT 13- Above ≧Shijima) 8th part 9th illusion

Claims (1)

[Scope of Claims] 1. A main circuit equipment group including a fluorocarbon cooling unit that houses a semiconductor element for the main circuit, a gate drive device that drives the fluorocarbon cooling unit, a snubber resistor, a current limiting reactor, an ACCT, and a filter capacitor. , a control circuit equipment group including a gate control device, a relay panel, a power supply device, and switches that control these are housed in an integrated box frame that spans both sides in the width direction of the vehicle. In an inverter device having an inspection hole and an inspection space in the center of the box frame, the control circuit equipment group is arranged on one side of the box frame in the width direction of the vehicle, and the control circuit equipment group is arranged on one side of the box frame in the width direction of the vehicle, and the control circuit equipment group is arranged on one side of the box frame in the width direction of the vehicle. An inverter device for a vehicle, characterized in that a central portion is equally divided into U-phase, V-phase, and W-phase in the traveling direction of the vehicle, and the main circuit equipment group is equally arranged in each phase. 2. In claim 1, the main circuit equipment group includes at least the fluorocarbon cooling unit disposed on the side surface of the vehicle, the snubber resistor,
The current limiting reactor, the gate drive device disposed on the back surface of the current limiting reactor so as to be detachable from the inspection hole, and the ACC.
An inverter device for a vehicle, characterized in that the filter capacitor is arranged for each phase substantially parallel to the traveling direction of the vehicle at a position opposite to the filter capacitor T with the inspection hole in between. 3. In claim 1, the control circuit equipment group is arranged in the order of the switches, the power supply device, the relay panel, and the gate control device,
Further, a vehicle characterized in that a wiring duct is provided above each of the devices to extend over each device, house control circuit wiring, and protrude from the top of the box frame to isolate it from the main circuit. inverter device.