JPH0417813B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electric vehicle control device, and particularly to an electric vehicle control device installed on the roof of an electric vehicle.

[Conventional technology]

FIGS. 4 and 5 show a conventional electric car and electric car control device. In the figure, the electric car 1 is powered from an overhead wire 2 and runs on rails 3. A device 6 is installed.
Reference numerals 8 and 9 denote devices made of electrical components, which are housed in the control device 6 and sealed with a cover 7. The devices 8 and 9 can be removed as shown by the chain lines by opening the inspection covers 7 on both sides.

As shown in FIG. 5, the shape of the roof of the electric car 1 has oblique curved surfaces at both ends, and this is due to the construction limits of the electric car 1. Additionally, the height of the storage area on the roof is limited by the overhead wires. For this reason, conventionally, when installing a control device on the roof, the size of the devices 8, 9 built into the control device, handling, securing the frontage of the devices 8, 9 for inspection, and inspection from both sides have been considered. It was necessary to ensure the maximum height of the devices 8 and 9, and the devices 8 and 9 were limited in size to fit within the storage space shown in FIG. 5.

Due to the above circumstances, the shape of the equipment has become elongated, and the storage of the equipment can only be extended in the longitudinal direction. For this reason, there is a lot of deck space in the storage space on the roof, and the amount of storage equipment is small relative to the area, making electric cars extremely wasteful.

For the reasons mentioned above, the majority of electric cars in Japan and abroad store equipment by hanging it under the floor of the electric car. However, because dust, dirt, iron powder, etc. are scattered under the floor of electric cars, many of the devices are built-in to insulate and prevent deterioration.
It was necessary to seal the box, and as a result, it was necessary to make the box larger and install a cooler to cool the heat generated inside. Furthermore, since the heating element was exposed outside the box, it was necessary to double the insulation and increase the size of the equipment to ensure insulation distance.

On the other hand, since there is less dust on the roof, there is no need for the above treatment, and the structure of exposing the heating element outside the box is relatively simple, which has the advantage of allowing equipment to be made smaller and requiring less storage space. If it can be used effectively, it is considered to be a very suitable place to store equipment.

In FIG. 5, the control device 6 has an external dimension that is approximately half of the space of the equipment storage section 4 on the roof, and is designed so that it does not interfere with the ceiling 5.
is installed in the center of. Built-in devices 8 and 9 are
It is composed of semiconductors and windings, and needs to be inspected periodically, and it is a necessary condition that the devices 8 and 9 can be easily removed during regular inspections. In addition, the devices 8 and 9 may have a two-layer structure at the front and back, making it difficult to inspect the devices located at the rear.
Although this is not preferable, it may be unavoidable in order to downsize the control device 6. However, in that case, 1
Compared to the layered structure, in order to make it easier to remove the rear equipment, it is necessary to configure the equipment to be smaller than the external dimensions of the front equipment, which not only limits the number of components but also reduces the space factor of the control device 6. becomes worse;
Overall, this leads to larger size.

[Problem that the invention seeks to solve]

In conventional electric vehicle control devices such as those described above, the inspection surfaces are only on both sides, which limits the devices that can be built into the device.Also, the limited inspection surfaces make inspection difficult and the size of the device There was a problem that the space on the roof was not used effectively.

This invention was made to solve the above-mentioned problems, and it is possible to maximize the effective use of the space where the device is installed, increase the number of storage devices, and downsize the device. The purpose is to obtain an electric vehicle control device that can be easily inspected.

[Means for solving problems]

An electric vehicle control device according to the present invention includes a box having a plurality of inspection ports on the side surface and a plurality of openings on the top surface provided with a cover, and a plurality of devices that close each opening and are attached to the opening. .

[Function] In this invention, when the equipment attached to the opening is moved upward and taken out of the box, the opening functions as an inspection port, and the box has inspection ports substantially on the side and top surfaces of the box. becomes.

〔Example〕

FIG. 1 and FIG. 2 show an embodiment of this invention,
In FIG. 1, an equipment storage section 4 is formed on the roof of an electric vehicle 1, and a box 10a for the control device 10 is disposed within the equipment storage section 4. Inspection ports 11 are provided on both sides of the box 10a.
A cover 11a is attached to the cover 1 so as to be openable and closable. Further, openings 15, 16,
17 are provided, and devices 12, 13, 14 are installed in these openings, respectively. Further, other devices 18 and 19 are housed inside the box 10a.

The devices 12, 13, 14 are respectively located at openings 12a, 13a, 14 located above the top surface of the box 10a.
a, a sealed part 12b located inside the box 10a,
It consists of 13b and 14b. Release section 12
a, 13a, 14a are parts that actively require heat dissipation to the atmosphere, and sealed parts 12b, 13b, 14
b is a part such as an electronic circuit that requires low voltage and dustproofing.

To explain the above configuration in more detail with reference to FIG. 2, the device 14 installed in the opening 17 on the top surface of the box 10a has a support frame 14c fixed between the open part 14a and the sealed part 14b. Support frame 1
4c is placed around the opening 17 via a gasket 20 to close the opening 17. Inside the box 10a, the devices are connected by connectors 21 and wiring 22. The same applies to the other devices 12 and 13.

With the above configuration, when inspecting the equipment, as shown in FIG. Equipment 1
Take out 8a. The device 14 is lifted upward as shown by arrow B and taken out as shown by the chain line. At this time, if the equipment 14 is heavy, it may be moved upward using a crane or the like. The device 18b stored below the device 14 is taken up from the opening 17 in the direction of arrow C after the device 14 is taken out. In addition,
The connector 21 can be handled through the inspection port 11 and the opening 17. Needless to say, the same applies to the other devices 12 and 13.

The devices constituting the control device 10 as described above can be handled from all sides of the device storage section 4 except for the bottom surface. By providing inspection parts from multiple angles in this way, it becomes possible to increase the number of devices that can be inspected. Therefore, many devices and parts can be stored in the device storage section 4 with minimal space. In addition, the opening 1 on the top surface of the box 10a
5, 16, 17 are devices 12, 13, 14 respectively
Since the space is covered by the installation, equipment storage efficiency is further improved.

For equipment that requires cooling means for cooling fins, such as semiconductors, as shown in another embodiment in FIG. What is necessary is to form an open part 25 having an airtight structure and a sealed part 26, and place the device part 27 that needs to be sealed in the sealed part 26 and the part 27a that needs to be cooled in the opened part 25.

In the above embodiment, the box 10a is configured to cover the entire space of the equipment storage section on the roof, but the box 10a may be divided in the center to make the box unit smaller, and the same effect will be obtained.

〔Effect of the invention〕

As is clear from the above description, this invention
A box has multiple inspection holes with covers on the sides and multiple openings on the top surface, the release part is located above the top surface of the box, the sealing part is located inside the box, and each opening is closed. Equipped with multiple devices that can be plugged and removably installed, increasing the amount of storage for devices and parts, making handling and inspection easier, and increasing the efficiency of using the roof storage area of electric vehicles. be able to. Furthermore, these features allow the device to be made smaller, lighter, and less expensive.

[Brief explanation of drawings]

FIG. 1 is a front sectional view of one embodiment of the present invention, and FIG.
The figure is a partially enlarged front sectional view of Figure 1, Figure 3 is a front sectional view of another embodiment, Figure 4 is a side view of a conventional electric car, and Figure 5 is taken along the line V-V in Figure 4. FIG. 1...Electric car, 4...Equipment storage section, 10...Control device, 10a...Box, 11...Inspection port, 11a
... Cover, 12, 13, 14 ... Equipment, 15,
16, 17...opening. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] 1. An equipment storage area formed on the roof of an electric vehicle; a plurality of inspection ports provided in the equipment storage area with covers attached to the sides; and a plurality of openings formed on the top surface. an electric vehicle control device, comprising: a box with a release portion above the top surface of the box; and a plurality of devices removably mounted with an opening portion located above the top surface of the box and a sealing portion positioned within the box to cover each of the openings. Device.