JP2022122417A - Method for assembling electrical device, electrical device, and assembly jig - Google Patents

Abstract

To improve the assemblability of an electric device by suppressing inclination of a main terminal with respect to a substrate in a case of the electric device during an assembling process of the electric device.SOLUTION: In a process of screwing a main terminal 4 to substrates 3A and 3B accommodated in a case 2 of an electric device 1, an assembly jig 5 is interposed between the substrate 3A and a pedestal portion 41 of the main terminals 4 at an outer edge portion 21 of the case 2, and a terminal body portion 42 of the main terminal 4 inserted through an insertion hole 302 of the substrate 3B is erected. The assembly jig 5 includes a support body portion 51 and an auxiliary support portion 52. The support body portion 51 protrudes from the outer edge portion 21 of the case 2 to the surface of the substrate 3A inside the case 2 in the screwing process, and supports the pedestal portion 41 of the main terminal 4. The auxiliary support portion 52 contacts the outer peripheral portion 22 of the case 2 to support the support body portion 51 along the surface of the substrate 3A.SELECTED DRAWING: Figure 1

Description

The present invention relates to technology for assembling electrical equipment.

As an electric device, for example, there is a control device for an electric vehicle disclosed in Patent Document 1. A pair of main terminals of the electrical equipment are connected to a battery external to the power supply controller, and input power is supplied from the battery to the board of the power supply controller. The board includes, for example, two boards, a drive board and a control board, and outputs a control power supply voltage and a control signal. The main terminals are screwed to the drive board and the control board. By tightening the screws, the drive board and the control board are energized from the battery.

Japanese Patent Application Laid-Open No. 2003-111202

The main terminals of the electric device are fixed to the drive board and the control board by screwing to the drive board and the control board which are arranged in parallel in the case of the electric device. Here, for example, in the process of inserting the main terminals into the insertion holes of the control board in the process of assembling the electrical equipment, the main terminals are not fixed to the drive board because they are not screwed. At this time, the positional relationship between the legs of the main terminals and the center of gravity is shifted, resulting in poor balance. For example, as shown in FIG. 4, the main terminals 4 of the first board 3A of the two boards placed in the case 2 in the process of assembling the electric device 1 cannot stand upright on their own, so they tend to tilt. Become. Due to this inclination of the main terminals 4, it becomes difficult to pass the main terminals 4 through the insertion holes 302 of the board 3B in FIG.

SUMMARY OF THE INVENTION In view of the circumstances described above, it is an object of the present invention to improve the ease of assembly of an electrical device by suppressing the inclination of the main terminal with respect to the substrate in the case of the electrical device during the assembly process of the electrical device.

Accordingly, in one aspect of the present invention, in the process of screwing the main terminals to two substrates housed in a case of an electric device, one of the two substrates and the main terminal are connected to each other at the outer edge of the case. An assembly jig is interposed between the base portion of the terminal and the terminal body portion of the main terminal to stand upright, while the terminal body portion is inserted through the insertion hole of the other substrate of the two substrates. It is a method of assembling the equipment.

One aspect of the present invention includes two substrates, a case in which the two substrates are accommodated, and a main terminal screw-fastened to the two substrates in the case, wherein the main terminal is the A pedestal portion fixed to one of the two substrates and a terminal main body portion erected on the pedestal portion are provided, and the terminal main body portion is attached to the outer edge portion of the case during the fastening process. The electrical equipment is erected by an assembly jig interposed between the one substrate and the pedestal, and is inserted into the insertion hole of the other substrate of the two substrates.

According to one aspect of the present invention, in the process of screwing the main terminals to two substrates housed in a case of an electric device, one of the two substrates and the main terminals are connected at the outer edge of the case. It is an assembly jig for erecting the terminal main body portion of the main terminal which is interposed between the base portion and the main terminal and which is inserted into the insertion hole of the other substrate of the two substrates.

According to one aspect of the present invention, in the assembly jig, in the process, a supporting main body portion projecting from the outer edge portion of the case to the surface of the one substrate to support the pedestal portion; and an auxiliary support portion that abuts and supports the support body portion along the surface.

According to one aspect of the present invention, in the assembly jig, the auxiliary support includes a knob operated in the process.

According to the present invention described above, since the inclination of the main terminals with respect to the substrate in the case of the electrical equipment is suppressed during the process of assembling the electrical equipment, it is possible to improve the assembling efficiency of the electrical equipment.

1(a) is a side view of a case in which a board of an electrical device according to an embodiment of the present invention is arranged and an assembly jig therefor, and (b) a plan view of the case and the assembly jig. Explanatory drawing of the assembly process of the said electric equipment. Explanatory drawing of the said assembly process. FIG. 4 is a plan view of a case in which terminals are arranged on a substrate without using an assembly jig in the process of assembling the electric device; The electric circuit diagram which showed the application example of the said electric equipment.

Embodiments of the present invention will be described below with reference to the drawings.

An electric device 1 according to an embodiment of the present invention shown in FIGS. 1 to 3 is applied as a control section 70 of a power supply controller 7 of a synchronous motor 10 of Patent Document 1 shown in FIG. 5, for example.

As shown in FIG. 3, the electric device 1 includes substrates 3A and 3B which are two substrates housed in a case 2, a pair of main terminals 4 fastened to the substrates 3A and 3B within the case 2, have

The board 3A functions as a drive board that outputs ON/OFF drive signals for the switching elements of the inverter circuit 72 using, for example, a battery 71 external to the power supply controller 7 as an input power supply. On the other hand, the board 3B functions as a control board that uses the battery 71 as an input power supply to generate and output a control power supply voltage for the current detector 73, the position detector 74, and the like.

As shown in FIGS. 1 to 3, the main terminals 4 are inserted through the board 3B in the case 2 and stand on the board 3A as a pair to be electrically connected to the boards 3A and 3B. Of the pair of main terminals 4, one main terminal 4 can be electrically connected to the negative (-) side of the battery 71, and the other main terminal 4 is connected to the positive (-) side of the battery 71 via a contact 75 and a fuse 76. It is possible to conduct with the +) side.

The main terminal 4 is made of a conductive material and integrally includes a pedestal portion 41 , a terminal body portion 42 and a fixing portion 43 . The pedestal portion 41 is fixed to one substrate 3A out of the substrates 3A and 3B. The terminal body portion 42 has a cylindrical shape and is erected on the pedestal portion 41 . The fixing portion 43 is fastened to the substrate 3A by screwing to fix the pedestal portion 41 to the substrate 3A.

The assembly jig 5 is interposed between the substrate 3A and the pedestal portion 41 of the main terminal 4 at the outer edge portion 21 of the case 2 in the fastening process, and the main terminal is inserted through the insertion hole 302 of the substrate 3B. 4 is erected. As shown in FIG. 1, the assembly jig 5 is integrally provided with a plate-like support body portion 51, an auxiliary support portion 52 and a knob portion 53. As shown in FIG. The support body portion 51 protrudes from the outer edge portion 21 of the case 2 to the surface of the substrate 3A inside the case 2 in the fastening process, and supports the base portion 41 of the main terminal 4 . The auxiliary support portion 52 contacts the outer peripheral portion 22 of the case 2 to support the support body portion 51 along the surface of the substrate 3A. The grip portion 53 is gripped and operated by the operator during the fastening process.

A process of assembling the electric device 1 will be described with reference to FIGS.

First, the substrate 3A is placed inside the case 2 and screwed. Next, when the auxiliary support portion 52 of the assembly jig 5 abuts against the outer peripheral portion 22 of the case 2 due to the operation of the knob portion 53 of the assembly jig 5 by the operator, the substrate 3A near the fixed portion of the main terminal 4 is , the support body portion 51 of the assembly jig 5 is arranged along the surface of the substrate 3A.

Next, the pedestal portion 41 of the main terminal 4 is placed on the support main body portion 51 of the assembly jig 5 so that the fastening hole 301 of the substrate 3A and the fastening hole 401 of the main terminal 4 meet. At this time, as shown in FIG. 1, the terminal body portion 42 of the main terminal 4 is supported by the support body portion 51 so as to stand upright on the substrate 3A.

Next, as shown in FIG. 2, the terminal body portion 42 is inserted through the insertion hole 302 of the substrate 3B, and further, the fastening hole 401 of the main terminal 4 of FIG. 1B and the fastening hole 303 of the substrate 3B of FIG. The substrate 3B is placed in the case 2 so that the .

Then, as shown in FIG. 3, when the screws 6 are screwed into the fastening holes 303 of the substrate 3B, the fastening holes 401 of the main terminals 4, and the fastening holes 301 of the substrate 3A, the main terminals 4 are attached to the substrate 3A. and the substrate 3B. After that, when the support body portion 51 of the assembly jig 5 is pulled out from between the substrates 3A and 3B by operating the knob portion 53 of the assembly jig 5, the substrates 3A, 3B and the main terminals 4 are inserted into the case 2. Preparations are completed.

According to the process of assembling the electric device 1 described above, in the process of screwing the main terminal 4 to the substrates 3A and 3B in the case 2 of the electric device 1, the terminal body portion 42 of the main terminal 4 is assembled and fixed on the substrate 3A. It is supported upright by the support body portion 51 of the tool 5 . Therefore, inclination of the terminal body portion 42 of the main terminal 4 on the substrate 3A is suppressed during the assembling process, so that the assembling efficiency of the electric device 1 is improved.

In particular, by abutting the auxiliary support portion 52 of the assembly jig 5 on the outer peripheral portion 22 of the case 2, the support main body portion 51 of the assembly jig 5 is positioned near the fixed portion of the main terminal 4 on the substrate 3A. placed along the surface. By arranging the pedestal portion 41 of the main terminal 4 on the support body portion 51, the terminal body portion 42 of the main terminal 4 can stand upright with respect to the substrate 3A. Therefore, tilting of the terminal body 42 is reliably avoided in the fastening process, and the main terminal 4 stands on its own more stably on the substrate 3A.

Further, since the auxiliary support portion 52 of the assembly jig 5 is provided with the knob portion 53 , the assembly jig 5 can be easily attached to and removed from the case 2 , thereby further improving the assemblability of the electric device 1 .

It should be noted that the present invention is not limited to the power supply controller of this embodiment, and can be effectively applied to general electrical equipment that uses main terminals and two substrates.

DESCRIPTION OF SYMBOLS 1... Electric equipment 2... Case, 21... Outer edge part, 22... Outer peripheral part 3A, 3B... Board, 301, 303... Fastening hole, 302... Insertion hole 4... Main terminal, 41... Base part, 42... Terminal body part, DESCRIPTION OF SYMBOLS 43... Fixing part 401... Fastening hole 5... Assembly jig 51... Support body part 52... Auxiliary support part 53... Knob part 7... Power supply controller 70... Control part 71... Battery 72... Inverter circuit 73 Current detector 74 Position detector 75 Contact 76 Fuse 10 Synchronous motor

Claims (5)

Assembly between one of the two substrates and the base of the main terminal at the outer edge of the case in the process of screwing the main terminals to the two substrates accommodated in the case of the electrical equipment. A method for assembling an electric device, comprising the steps of: erecting the terminal main body portion of the main terminal by interposing a jig; and inserting the terminal main body portion into an insertion hole of the other of the two substrates. . two substrates and
a case in which these two substrates are accommodated;
a main terminal screw-fastened to the two substrates in the case;
has
The main terminals are
a pedestal fixed to one of the two substrates;
a terminal main body portion erected on the pedestal;
with
In the fastening process, the terminal main body is erected by an assembly jig interposed between the one substrate and the pedestal at the outer edge of the case, while the other of the two substrates is erected. 1. An electrical device characterized by being inserted through an insertion hole of a substrate of a. In the process of screw-fastening the main terminals to the two boards accommodated in the case of the electrical equipment, the outer edge of the case is interposed between one of the two boards and the pedestal of the main terminal. and erecting the terminal body portion of the main terminal to be inserted into the insertion hole of the other of the two substrates. a supporting body portion that protrudes from the outer edge of the case to the surface of the one substrate and supports the pedestal portion in the process;
an auxiliary support portion that abuts against the outer peripheral portion of the case and supports the support body portion along the surface;
The assembly jig according to claim 3, characterized by comprising: 5. The assembly jig according to claim 4, wherein said auxiliary support has a knob operated in said process.

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