JPH0548392U - Electric vehicle control device - Google Patents

Abstract

(57) [Summary] [Purpose] Improving productivity and maintainability, which deteriorate with miniaturization of electric vehicle control devices. [Structure] By installing a hinge mechanism on one side of a component installation base that is connected in parallel to the base via a stay on electrical equipment installed on the board, component installation It has become possible to open and close the base unit for use. [Effect] The electric vehicle control device can be downsized without deteriorating the ease of assembly of parts and the maintainability such as inspection and repair.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric vehicle such as a battery forklift truck, and more particularly to downsizing an electric vehicle control device and improving its productivity and maintainability.

[0002]

[Prior Art]

 In a conventional electric vehicle control device, wiring is performed by relaying cable connection terminals installed on the same base from electrical components such as thyristors. Further, the print substrate was arranged vertically to the base. Alternatively, as described in Japanese Utility Model Publication No. 59-15496, there were some in which the base and the printed circuit board were arranged in parallel, and the electrical components were installed in the space.

[0003]

[Problems to be solved by the device]

 The above conventional technique has a problem that the electric vehicle control device becomes large. Therefore, the electric vehicle control device has been miniaturized by eliminating the cable connection terminal, arranging the printed circuit board and the base in parallel, and installing electrical components such as semiconductor parts in the space. Since various parts were installed between the printed circuit board, etc. and the base, assembly of those parts, especially by eliminating the cable connection terminal, productivity such as when directly connecting cables to each part, or , Maintainability such as inspection and repair has deteriorated.

An object of the present invention is to improve productivity and maintainability, which deteriorate with miniaturization of an electric vehicle control device.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a hinge mechanism is provided on a component installation base for installing a printed board etc. arranged on various parts such as semiconductor parts, and each installed printed board etc. The parts installation base can be opened and closed for each part.

[0006]

[Action]

 For the sake of downsizing, the cable connection terminal has been abolished so that the cable can be directly attached to semiconductor parts such as transistors and diodes. During maintenance, you can easily open and close the component installation base by removing the set screw on the opposite side of the hinge mechanism without removing the component installation base on which the printed circuit board, etc. are installed. It is possible to do each work promptly.

[0007]

【Example】

 Hereinafter, an electric vehicle control device according to the present invention will be described in detail with reference to an illustrated embodiment.

FIG. 1 shows an embodiment of the present invention. In the figure, reference numeral 1 is a printed circuit board base, and 2 printed circuit boards are installed via a spacer 3 made of plastic. The printed circuit board base is connected to the four stays by the screw of 5 through the hinge portion of the printed circuit board base. 6 is a stay for the set screw, and the set screw 7 is used to fix the 1 printed circuit board base together with the 8 printed circuit board cover. The stays 4 and 6 are attached to a base 9 and various semiconductor parts are installed on the base 9.

In FIG. 2, 10 is a module in which a power transistor and a diode are integrated, and 11 is a current detector. When connecting a cable to each terminal of the module of 10 or the current detector of 11 or at the time of maintenance thereafter, simply remove the 7 setscrew as shown in FIG. The base can be opened and closed together with the two printed circuit boards and the eight printed circuit board covers. FIG. 3 is an exploded view of the hinge portion. The screw 5 is fixed by screwing it into the printed circuit board base 1 through the washer 12 and is further connected to the plastic bush 13. The inner diameter of the plastic bush of 13 is slightly larger than the outer diameter of the screw of 5, that is, the screw of 5 is not directly screwed into the plastic bush of 13, so that the base of the printed circuit board of 1 is smooth. It is possible to open and close the section.

[0010]

[Effect of the device]

 According to the present invention, it is possible to reduce the size of the electric vehicle control device without deteriorating the ease of assembly when connecting cables to various semiconductor parts and the maintainability of inspection, repair, parts replacement, and the like.

[Brief description of drawings]

FIG. 1 is an external view (when closed) showing an embodiment of an electric vehicle controller according to the present invention.

FIG. 2 is an external view (when opened) showing an embodiment of an electric vehicle controller according to the present invention.

FIG. 3 is an exploded view of a hinge portion in an embodiment of the electric vehicle controller according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Printed circuit board base, 2 ... Printed circuit board, 3 ... Spacer, 4 ... Stay (hinji part), 5 ... Screw (hinji part), 6 ... Stay (set screw part), 7 ... Set screw, 8 …
Printed circuit board cover, 9 ... Base, 10 ... Power transistor and diode, 11 ... Current detector, 12 ... Washer, 13 ... Bush.

Continuation of the front page (72) Kiyoshi Nemoto, Inventor, Takashi, Takata, Ibaraki 2520, Takaba Automotive Equipment Division (72) Inventor Minoru Kaminaga, Ibaraki, Katsuta, Takara, Takaba 2520, Hitachi, Ltd. Equipment Division (72) Inventor Nobuyoshi Takahashi 2477 Kashima Yatsu, Katsuta City, Ibaraki Pref. Takaba 3 Inside Hitachi Automotive Engineering Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. An electric vehicle control device having a main electric motor for driving an electric car and a chopper device for controlling the main electric motor, which has a hinge mechanism capable of opening and closing a set screw on one side. An electric vehicle control device having an installation base. 2. The hinge mechanism according to claim 1, wherein a hole is formed in an end portion of a U-shaped stay connected to the base, and a bush made of plastic (for example, nylon) is inserted thereinto, Electricity characterized by a mechanism that enables opening and closing by locking the hinge part, which is formed by bending one end of the installation base on one side, to the stay with the plastic bush through the plastic bush. Vehicle control device.