Method for manufacturing a conductor plate, conductor plate assembly

Abstract

This method for producing a conductor plate includes: a pressing step for forming a prescribed closed region through press molding and then cutting out a prescribed region being folded in the closed region from the surroundings so as to leave only a connected part, which is part of the region being folded; and a folding step for folding the region being folded at the connected part to thereby laminate the region being folded with a region being laminated, which is another region in the closed region, and expanding part of the region being folded to outside of the closed region.

Description

Technical Field

[0001] The present invention relates to a method for manufacturing a conductor plate, お and a conductor plate assembly.

Background Art

[0002] Conductor plates that serve as flow paths for electric energy are used in various shapes depending on the application. Patent Document 1 discloses a non-reversible circuit element including a case, an electrical component, and a magnetic component. The case houses the electrical component and the magnetic component to form a yoke. The magnetic component includes a magnetic rotor, and the magnetic rotor includes a plurality of central conductors and a soft magnetic substrate. The plurality of central conductors are composed of conductor plates and include a ground portion, an intermediate portion, and a terminal portion. The ground portion is composed of a single conductor plate common to the plurality of central conductors. The intermediate portion is derived from the ground portion and includes a plurality of upright portions and a plurality of parallel portions. The plurality of upright portions are arranged upright with respect to the ground portion. The plurality of parallel portions are continuous with the plurality of upright portions and are arranged parallel to the ground portion, intersecting each other at a predetermined angle and insulated from each other. The plurality of upright portions include two upright portions whose inner surfaces face each other and are arranged in parallel. The soft magnetic substrate is a substantially rectangular flat plate including two parallel side surfaces. The thickness dimension of the flat plate is set to be the same as or smaller than the height dimension inside the plurality of upright portions. The dimension between the two parallel side surfaces is set to be the same as or smaller than the dimension between the inner surfaces of the upright portions arranged in parallel and facing each other. The soft magnetic substrate is inserted into the central conductor. The plurality of upright portions and the plurality of parallel portions are bent using a bending jig, and the bending jig is a reference piece that mimics the shape of the soft magnetic substrate. A non-reversible circuit element is disclosed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the invention described in Patent Document 1, there is room for improvement in the manufacturing method of the conductor plate.

Means for Solving the Problems

[0005] A method for manufacturing a conductor plate according to a first aspect of the present invention includes a pressing step of forming a predetermined closed region by press molding and cutting off the surrounding of the predetermined bent region in the closed region leaving only a connecting portion that is a part of the bent region, and a bending step of bending the bent region at the connecting portion to laminate the bent region with a laminated region that is another region in the closed region and developing a part of the bent region outside the closed region. A fixing step of fixing the bent region and the laminated region; including. The first 2 A conductor plate assembly according to an aspect of the present invention is a conductor plate assembly including a flat first conductor plate, a flat second conductor plate arranged to be laminated with the first conductor plate, and an insulating member arranged between the first conductor plate and the second conductor plate, wherein each of the first conductor plate and the second conductor plate includes a flat predetermined closed region and an external terminal protruding from the closed region, the closed region has a terminal forming hole that is a hole, an internal terminal connected to the external terminal is formed at a connecting portion that is an end of the terminal forming hole, the volumes of the external terminal and the internal terminal are substantially the same as the terminal forming hole, the internal terminal in the first conductor plate is formed on the side opposite to the second conductor plate, and the internal terminal in the second conductor plate is formed on the side opposite to the first conductor plate.

Advantages of the Invention

[0006] According to the present invention, the yield of the conductor plate can be improved.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Embodiments for Carrying Out the Invention

[0008] —First Embodiment— Hereinafter, with reference to FIGS. 1 to 5, the manufacturing method of the conductor plate and the first embodiment of the conductor plate will be described.

[0009] FIG. 1 is a perspective view of the conductor plate 1 in the first form. In this embodiment, XYZ axes perpendicular to each other are defined to clarify the correlation between the drawings. Also, the rotation in the clockwise direction toward the positive direction of each axis is defined as the plus direction, in other words, the positive rotation. The conductor plate 1 has a substantially flat plate shape extending in the XY plane. The conductor plate 1 has a plurality of through holes 2, a plurality of terminal forming holes 3, a plurality of composite holes 23, and a plurality of terminals 4. Both the through hole 2 and the terminal forming hole 3 are holes penetrating the conductor plate 1.

[0010] Both the terminal forming hole 3 and the terminal 4 have a rectangular shape and have a longitudinal direction in the X-axis direction. The number of terminal forming holes 3 and terminals 4 is the same, and each terminal forming hole 3 and terminal 4 are adjacent to each other in the X-axis direction. The terminal forming hole 3 exists in a pair with the terminal 4, whereas the through hole 2 has no particular limitation on its positional relationship with other configurations.

[0011] The composite hole 23 is a hole where the through hole 2 and the terminal forming hole 3 are connected. The composite hole 23 is formed only because the through hole 2 and the terminal forming hole 3 are arranged at relatively close positions due to design considerations, and it does not have a special configuration and function exceeding those of the through hole 2 and the terminal forming hole 3. Therefore, the composite hole 23 will not be particularly described below.

[0012] Each terminal 4 has a fixing portion 41 near the minus-side end of the X-axis. However, in FIG. 1, for drawing convenience, a plurality of fixing portions 41 are grouped together and surrounded by a circular broken line and labeled. Details of the fixing portion 41 will be described later.

[0013] FIG. 2 is a diagram showing an outline of a manufacturing method of the conductor plate 1. The viewing point in FIG. 2 is the same as that in FIG. 1. First, a plate material 91, which is a plate-shaped material that is a conductor, becomes a pressed plate material 92 through a pressing process. Then, it becomes an intermediate state 93 through the first bending process, and through the second bending process, the conductor plate 1 shown in FIG. 1 is completed. Hereinafter, the first bending process and the second bending process are collectively referred to as the "bending process". Hereinafter, the outer peripheral portion of the pressed plate material 92, particularly the outer edge of the pressed plate material 92 projected onto the XY plane, is called the outer peripheral edge 92G, and the inside of the outer peripheral edge 92G is also called the closed region.

[0014] In the pressing process, the outer peripheral edge 92G, the through hole 2, and the portions that will become the terminals 4 and the fixing portions 41 in later processes are formed. Strictly speaking, in the pressing process, by punching around the portions that will become the terminals 4 and the fixing portions 41, the terminals 4 and the fixing portions 41 can be bent in the subsequent bending process. The space generated in the plate material 91 by bending the terminal 4 is the terminal forming hole 3. That is, the terminal forming hole 3 and the terminal 4 have substantially the same shape. In the present embodiment, the terminal forming hole 3 and the terminal 4 both have a rectangular shape, and two of its four sides are parallel to the X-axis and the other two sides are parallel to the Y-axis.

[0015] In the first bending step, each terminal 4 is rotated 90 degrees plus around the Y-axis along the XZ plane, making the press plate material 92 into an intermediate state 93. In the second bending step, each terminal 4 is further rotated 90 degrees plus around the Y-axis along the XZ plane. That is, when the first bending step and the second bending step are combined, each terminal 4 is rotated 180 degrees plus around the Y-axis along the XZ plane.

[0016] Figure 3 is a diagram showing the details of the press plate material 92. The upper part of Figure 3 is a perspective view from the same viewpoint as Figure 2, and the lower part of Figure 3 is a plan view showing the XY plane. However, in the XY plane view, the shape of the press plate material 92 is simplified for drawing convenience.

[0017] In the press plate material 92, a bent region 243 that will later become the terminal 4 and a protrusion forming region 253 that will later constitute a part of the fixing portion 41 are formed. The bent region 243 and the protrusion forming region 253 are rectangular regions. In the XY plane view shown in the lower part of Figure 3, the dot hatching indicates the region to be punched out in the pressing process, the right diagonal hatching indicates the bent region 243, and the left diagonal hatching indicates the protrusion forming region 253. For drawing convenience, it is not described in the upper part of Figure 3 but only in the lower part of Figure 3. The side on the plus side of the X direction of the bent region 243 is called the connecting portion 244, and the end on the plus side of the Y direction of the protrusion forming region 253 is called the protrusion connecting portion 254. In the bent region 243, a fitting hole 241, which is a hole penetrating near the connecting portion 244, is formed.

[0018] That is, the bent region 243 is separated from the surroundings leaving only the connecting portion 244 in the pressing process. Also, the protrusion forming region 253 is separated from the surroundings leaving only the protrusion connecting portion 254 in the pressing process. Also, hereinafter, in the press plate material 92, the region having the width of the bent region 243 and on the plus side of the X-axis from the connecting portion 244 is called the laminated region 246. Strictly speaking, the region of the protrusion forming region 253 is not included in the laminated region 246.

[0019] FIG. 4 is a diagram showing details of the intermediate state 93 and the conductor plate 1. The intermediate state 93 is obtained by subjecting the press plate material 92 shown in FIG. 3 to a first bending process. In the first bending process, the bent region 243 is rotated 90 degrees plus around the Y-axis with the connection portion 244 as the rotation center. Also, in the first bending process, the protrusion forming region 253 is rotated 90 degrees minus around the X-axis with the protrusion connection portion 254 as the rotation center. The conductor plate 1 is obtained by subjecting the thus obtained intermediate state 93 to a second bending process. Hereinafter, the bent protrusion forming region 253 is also referred to as the protrusion 252.

[0020] In the second bending process, first, the bent region 243 is further rotated 90 degrees plus around the Y-axis with the connection portion 244 as the rotation center. As a result, the protrusion 252 is inserted into the fitting hole 241 of the bent region 243, and the bent region 243 is laminated on the laminated region 246. Also, as the bent region 243 moves, a region where there is no member is generated in the intermediate state 93, which becomes the terminal forming hole 3 in the conductor plate 1. After that, by further rotating the protrusion 252 90 degrees minus around the X-axis, the positions of the fitting hole 241 and the protrusion 252 are fixed, and the fixing portion 41 is formed. However, in the second bending process, the protrusion 252 may be rotated 90 degrees to the plus side.

[0021] Note that, in this embodiment, although it is included in the bending process, the process of rotating the protrusion forming region 253 in the first bending process and the second bending can also be called a "fixing process" because it is a process of forming the fixing portion 41. Also, for convenience, the terminal 4 can be considered to be divided into two, and it can also be said that the in-region terminal 4I existing inside the outer peripheral edge 92G and the out-region terminal 4E existing outside the outer peripheral edge 92G of the terminal 4 are connected. Also, considering the connection portion 244 as a starting point, it can also be said that the in-region terminal 4I connected to the out-region terminal 4E is formed at the connection portion 244 which is the end of the terminal forming hole 3.

[0022] FIG. 5 is a diagram showing the advantages of the manufacturing method of the conductor plate 1 described above. Specifically, the upper part of FIG. 5 shows the size of the plate material 91 when using the manufacturing method in the present embodiment, and the lower part of FIG. 4 shows the size of the comparative example plate material 91Z when using the manufacturing method of the comparative example conductor plate 1Z which is a comparative example. However, the outer dimensions of the comparative example conductor plate 1Z are the same as those of the conductor plate 1.

[0023] In the manufacturing method according to the present embodiment, the terminal 4 is formed by folding back the portion of the terminal forming hole 3 existing on the inner peripheral side of the outer peripheral edge 92G by the connection side. Therefore, the plate material 91 used for manufacturing the conductor plate 1 only needs to have the size of the outer peripheral edge 92G. The length by which the terminal 4 protrudes from the outer peripheral edge 92G is called the length L.

[0024] The comparative example conductor plate 1Z is manufactured from the comparative example plate material 91Z by a single pressing process. In this case, the comparative example plate material 91Z has dimensions that are even larger than the outer peripheral edge 92G by the length L. Therefore, in the manufacturing method according to the present embodiment, the area of the plate material 91 required to manufacture the conductor plate 1 of the same shape can be small, so the yield can be improved.

[0025] According to the first embodiment described above, the following operational effects can be obtained. (1) The manufacturing method of the conductor plate 1 includes a pressing process and a bending process. In the pressing process, the plate material 91 is used as a processing target, and a predetermined closed region having the outer peripheral edge 92G is formed by press molding, and in the closed region, a predetermined bent region 243 is separated from the periphery leaving only the connection portion 244 which is a part of the bent region. In the bending process, the bent region 243 is bent at the connection portion 244, so that the bent region 243 is laminated with the laminated region 246 which is another region in the closed region, and a part of the bent region is developed outside the closed region. Therefore, the conductor plate 1 can be manufactured using a plate material 91 with a small area, so the yield of the conductor plate 1 can be improved.

[0026] (2) The manufacturing method of the conductor plate 1 includes a first bending step and a fixing step which is a step of rotating the protrusion forming region 253 in the second bending. However, this fixing step can also be said to be a step of fixing the bent region 243 and the laminated region 246. Therefore, the bending of the bent region 243 can be fixed to maintain the shape of the conductor plate 1.

[0027] (3) The pressing step includes forming a fitting hole 241 which is a hole penetrating the bent region 243. Also, the pressing step similarly includes separating the predetermined protrusion forming region 253 from the surroundings, leaving only the protrusion connecting portion 254 which is a part of the protrusion forming region 253. In the fixing step, the protrusion 252 is formed by bending the protrusion forming region 253 at the protrusion connecting portion 254, and the bent region 243 and the laminated region 246 are fixed by further bending the protrusion 252 passed through the fitting hole 241. Therefore, the bent region 243 can be firmly fixed.

[0028] (4) The bent region 243 is rectangular, and the connecting portion 244 is the short side of the rectangle. Therefore, it is easy to project a wide area of the bent region 243 outside the outer peripheral edge 92G.

[0029] (5) The bent region 243 is a region having a longitudinal direction, and the longitudinal direction of the bent region 243 is substantially the same in the X-axis direction before and after the bending step. Therefore, in the bending step, the bent region 243 may be rotated 180 degrees around the Y-axis, so the processing content is simple and construction mistakes are less likely to occur.

[0030] (6) The conductor plate 1 is flat and has a predetermined closed region surrounded by the outer peripheral edge 92G, and an external terminal 4E protruding from the outer peripheral edge 92G. The closed region has a terminal forming hole 3 which is a hole. An internal terminal 4I connected to the external terminal 4E is formed at a connection portion 244 which is an end of the terminal forming hole 3. The total volume of the external terminal 4E and the internal terminal 4I is substantially the same as that of the terminal forming hole 3. Therefore, since the external terminal 4E and the internal terminal 4I are formed using the members that were present in the terminal forming hole 3, the conductor plate 1 can be created using a small amount of plate material 91. Also, since it is laminated in the laminated region 246, the conduction area is enlarged and the amount of heat generation can be reduced.

[0031] (Modification 1) The terminal 4 does not have a fixing portion 41, that is, a fitting hole 241 and a protrusion 252, at its base, and the manufacturing process of the conductor plate 1 may not include a fixing process. In this case, since the conductor plate 1 does not have the fixing portion 41, the restraint of the terminal 4 is weak, but by appropriately selecting the material of the plate material 91, the demerit of not having the fixing portion 41 can be reduced. According to this Modification 1, the conductor plate 1 can be manufactured with fewer processes.

[0032] (Modification 2) The conductor plate 1 may not have the through hole 2. Also, in the first embodiment, the conductor plate 1 has a plurality of terminal forming holes 3 and terminals 4, but it is sufficient to have at least one terminal forming hole 3 and terminal 4. Further, the conductor plate 1 may not have the composite hole 23.

[0033] (Modification 3) The configuration of the fixing portion 41 is not limited to the configuration in the above-described first embodiment. For example, without using the fitting hole 241, the bent region 243 may be fixed to the laminated region 246 by bending the protrusion 252 and caulking the bent region 243, or the bent region 243 may be fixed to the laminated region 246 by welding. Further, the bent region 243 may be fixed to the laminated region 246 using a separate member such as a screw.

[0034] (Modification 4) After the bending step, a sealing step of sealing a part of the conductor plate 1, particularly the region excluding the terminal 4, with an insulating resin member may be further included. Unintended electrical contact of the conductor plate 1 can be prevented.

[0035] - Second Embodiment - With reference to FIGS. 6 to 7, a method for manufacturing a conductor plate and a second embodiment of the conductor plate will be described. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and the differences will be mainly described. Regarding points not particularly described, they are the same as those in the first embodiment. In this embodiment, mainly, the formation position and the bending direction of the terminal 4 are different from those in the first embodiment.

[0036] FIG. 6 is a perspective view of the conductor plate 1A in the second embodiment. The point that the terminal 4 has a longitudinal direction in the X-axis direction is the same as that in the first embodiment, but the point that the terminal forming hole 3 has a longitudinal direction in the Y-axis direction is different from that in the first embodiment. Also, the shapes of the terminal forming hole 3 and the terminal 4 are slightly different from those in the first embodiment.

[0037] The lower right of FIG. 6 is a schematic diagram showing the shape of the terminal forming hole 3. The terminal forming hole 3 in the second embodiment has a quadrangular shape having vertices A, B, C, and D as shown in the lower right of FIG. 5. In this quadrilateral, sides AB and CD are parallel to the Y-axis, and side BC is parallel to the X-axis. However, the connecting side DA is not parallel to either axis and has an angle of 45 degrees with respect to the X-axis and the Y-axis. That is, angle BAD is 45 degrees, and angle ADC is 135 degrees. Therefore, although the longitudinal direction of the terminal forming hole 3 is parallel to the Y-axis, in the bending step, it is bent according to the angle of the connecting side, so that the longitudinal direction of the terminal 4 becomes parallel to the X-axis. In other words, by the bending step, the terminal 4 rotates 90 degrees plus around the Z-axis in the XY plane.

[0038] FIG. 7 is a diagram showing the manufacturing process of the conductor plate 1A in the second embodiment. Also in this embodiment, similar to the first embodiment, the conductor plate 1A is manufactured through a pressing process, a first bending process, and a second bending process. FIG. 7 shows a pressed plate material 92A in a state where the pressing process is completed and an intermediate state 93A in a state where the first bending process is completed. However, two views of the intermediate state 93A are shown with a changed perspective to assist in understanding the state. In this embodiment, the bent region 243 has a longitudinal direction in the Y-axis direction. In the bending process, the bent region 243 is rotated about the connecting portion 244 as the rotation center in the same manner as in the first embodiment. However, in this embodiment, when the rotation is completed, the bent region 243 is rotated obliquely so that the longitudinal direction thereof becomes parallel to the X-axis.

[0039] According to the second embodiment described above, the following operational effects can be obtained. (7) The closed region inside the outer peripheral edge 92G has an extent in the X-axis direction and the Y-axis direction orthogonal to the X-axis. As shown in the upper part of FIG. 7, the bent region 243 formed in the pressing process has a longitudinal direction in the Y-axis direction. As shown in the lower part of FIG. 7, in the bending process, the bent region 243 is bent so as to have a longitudinal direction in the X-axis direction. Therefore, the degree of freedom in the arrangement position of the terminal forming holes 3 is improved, and various designs are possible.

[0040] (Modification of the Second Embodiment) In this embodiment, before and after the bending process, the longitudinal direction of the bent region 243 differs by 90 degrees in the XY plane. However, this angle is not limited to 90 degrees, and any angle can be adopted.

[0041] - Third Embodiment - Referring to FIGS. 8 to 9, a third embodiment of the conductor plate assembly will be described. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and the differences will be mainly described. For points not particularly described, they are the same as those in the first embodiment. In this embodiment, it is mainly different from the first embodiment in that two conductor plates are combined.

[0042] FIG. 8 is a schematic view of the conductor plate assembly A. The conductor plate assembly A includes a flat first conductor plate 1P, a flat second conductor plate 1Q, and an insulating member R disposed between the first conductor plate 1P and the second conductor plate 1Q. In FIG. 8, the insulating member R is described as a sheet-like member, but it is only necessary that the first conductor plate 1P and the second conductor plate 1Q can be insulated, and it may be integrally formed with the first conductor plate 1P or the second conductor plate 1Q. For example, after the bending process including the fixing process is completed, a part of the first conductor plate 1P and the second conductor plate 1Q, for example, all regions except the terminal 4 may be sealed with an insulating resin member. The first conductor plate 1P is the same as the conductor plate 1 in the first embodiment. The difference between the first conductor plate 1P and the second conductor plate 1Q is the bending direction of the bent region 243 in the bending process. In the first conductor plate 1P, the bent region 243 is bent in the positive Z direction, and in the second conductor plate 1Q, the bent region 243 is bent in the negative Z direction.

[0043] FIG. 9 is an enlarged view of the bent region 243 portion of the first conductor plate 1P and the second conductor plate 1Q. Among the four figures shown in FIG. 9, the upper two are the first conductor plate 1P, and the lower two are the second conductor plate 1Q. Also, among the four figures shown in FIG. 9, the left two have the same viewing angle as FIG. 8, and the right two have a significantly different viewing angle from FIG. 8, showing the surfaces on the minus Z-axis side of the first conductor plate 1P and the second conductor plate 1Q. As shown in FIG. 9, the in-region terminal 4I of the first conductor plate 1P is formed on the positive Z-axis side, that is, on the side opposite to the second conductor plate 1Q, and the in-region terminal 4I of the second conductor plate 1Q is formed on the negative Z-axis side, that is, on the side opposite to the first conductor plate 1P. Therefore, the interval between the terminals 4 of the first conductor plate 1P and the second conductor plate 1Q can be ensured, and it is easy to ensure the insulation distance.

[0044] According to the above-described third embodiment, the following operational effects can be obtained. (8) The conductor plate assembly A includes a flat first conductor plate 1P, a flat second conductor plate 1Q arranged to be laminated with the first conductor plate 1P, and an insulating member R arranged between the first conductor plate 1P and the second conductor plate 1Q. The in-region terminal 4I on the first conductor plate 1P is formed on the side opposite to the second conductor plate 1Q, and the in-region terminal 4I on the second conductor plate 1Q is formed on the side opposite to the first conductor plate 1P. Therefore, the distance between the terminals 4 of the first conductor plate 1P and the second conductor plate 1Q can be ensured, and it is easy to ensure the insulation distance.

[0045] Each of the above-described embodiments and modifications may be combined. Although various embodiments and modifications have been described above, the present invention is not limited to these contents. Other aspects conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.

Explanation of Reference Numerals

[0046] 1, 1A... Conductor plate 1P... First conductor plate 1Q... Second conductor plate 3... Terminal forming hole 4... Terminal 4E... Out-of-region terminal 4I... In-region terminal 41... Fixing portion 91... Plate material 92, 92A... Press plate material 92G... Outer peripheral edge 93... Intermediate state 93A... Intermediate state 241... Fitting hole 243... Bent region 244... Connection portion 246... Laminated region 252... Protrusion 253... Protrusion forming region 254... Protrusion connection portion A... Conductor plate assembly R... Insulating member

Claims

1. A pressing step of forming a predetermined closed region by pressing, and cutting off the predetermined bent region from the surroundings in the closed region, leaving only a connecting portion that is a part of the bent region; A bending step of bending the bent region at the connecting portion to laminate the bent region with a laminated region that is another region in the closed region, and expanding a part of the bent region to the outside of the closed region; A manufacturing method of a conductor plate, including a fixing step of fixing the bent region and the laminated region.

2. In the manufacturing method of a conductor plate according to Claim 1, In the pressing step, further, fitting holes that are through holes are formed in the bent region, In the pressing step, further, a predetermined protrusion forming region is cut off from the surroundings, leaving only a protrusion connecting portion that is a part of the protrusion forming region, In the fixing step, a protrusion is formed by bending the protrusion forming region at the protrusion connecting portion, and the bent region and the laminated region are fixed by further bending the protrusion passed through the fitting hole. A manufacturing method of a conductor plate.

3. In the manufacturing method of a conductor plate according to Claim 1, After the bending step, further including a sealing step of sealing a part of the conductor plate with an insulating resin member. A manufacturing method of a conductor plate.

4. In the manufacturing method of a conductor plate according to Claim 1, The bent region is rectangular, and the connecting portion is a short side of the rectangle. A manufacturing method of a conductor plate.

5. In the manufacturing method of a conductor plate according to Claim 1, The bent region is a region having a longitudinal direction, Before and after the bending step, the longitudinal direction of the bent region is substantially the same. A manufacturing method of a conductor plate.

6. In the method for manufacturing a conductor plate according to claim 1, the closed region has an extent in the X-axis direction and in the Y-axis direction orthogonal to the X-axis, the bent region formed in the pressing step has a longitudinal direction in the Y-axis direction, In the bending step, the bent region is bent so as to have a longitudinal direction in the X-axis direction. A method for manufacturing a conductor plate.

7. A conductor plate assembly including a flat first conductor plate, a flat second conductor plate arranged to be laminated with the first conductor plate, and an insulating member arranged between the first conductor plate and the second conductor plate, Each of the first conductor plate and the second conductor plate, has a flat predetermined closed region, and an out-of-region terminal protruding from the closed region, the closed region has a terminal forming hole which is a hole, An in-region terminal connected to the out-of-region terminal is formed at a connection portion which is an end portion of the terminal forming hole, The volumes of the out-of-region terminal and the in-region terminal are substantially the same as the terminal forming hole, The in-region terminal in the first conductor plate is formed on the side opposite to the second conductor plate, The in-region terminal in the second conductor plate is formed on the side opposite to the first conductor plate. A conductor plate assembly.

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