WO2021140963A1 - Bus bar and electrical connection box - Google Patents

Bus bar and electrical connection box Download PDF

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Publication number
WO2021140963A1
WO2021140963A1 PCT/JP2020/048770 JP2020048770W WO2021140963A1 WO 2021140963 A1 WO2021140963 A1 WO 2021140963A1 JP 2020048770 W JP2020048770 W JP 2020048770W WO 2021140963 A1 WO2021140963 A1 WO 2021140963A1
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WO
WIPO (PCT)
Prior art keywords
piece
bus bar
pieces
engaging
junction box
Prior art date
Application number
PCT/JP2020/048770
Other languages
French (fr)
Japanese (ja)
Inventor
秀紀 後藤
Original Assignee
住友電装株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友電装株式会社 filed Critical 住友電装株式会社
Publication of WO2021140963A1 publication Critical patent/WO2021140963A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/02—Single bars, rods, wires, or strips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/06—Arrangements of circuit components or wiring on supporting structure on insulating boards, e.g. wiring harnesses

Definitions

  • the present disclosure relates to a bus bar and an electrical junction box using the bus bar.
  • This application claims priority based on Japanese Application No. 2020-002965 filed on January 10, 2020, and incorporates all the contents described in the Japanese application.
  • a substrate using a conductive member also called a bus bar
  • a bus bar that constitutes a circuit for conducting a relatively large current
  • a bus bar is plated in order to improve the reliability of connection and the like.
  • Patent Document 1 the corners between the main surface and the side surface are rounded, recesses are formed on the side surfaces, and the bus bar is covered with an insulating coating to prevent burrs and the like from being formed on the surface of the bus bar. As a result, a bus bar with enhanced durability of the insulating film is disclosed.
  • the bus bar according to the embodiment of the present disclosure is a bus bar for a vehicle, and includes a plurality of first pieces of the same shape made of a conductive plate material, and the plurality of first pieces are superimposed.
  • the electrical junction box includes the above-mentioned bus bar and a connection portion connected to the bus bar and connected to an external terminal.
  • FIG. It is a top view of the electric junction box which concerns on Embodiment 1.
  • FIG. It is a side view of the electric connection box which concerns on Embodiment 1.
  • FIG. It is a bottom view which shows the state which removed the lower case in the electric connection box which concerns on Embodiment 1.
  • FIG. It is a perspective view which shows an example of the bus bar attached to the electric connection box which concerns on Embodiment 1.
  • FIG. It is explanatory drawing explaining the attachment to the pedestal of the bus bar of the electric junction box which concerns on Embodiment 1.
  • FIG. It is explanatory drawing explaining the manufacturing method of the bus bar of the electric junction box which concerns on Embodiment 1.
  • FIG. It is explanatory drawing explaining the manufacturing method of the bus bar of the electric junction box which concerns on Embodiment 1.
  • FIG. It is explanatory drawing explaining the manufacturing method of the bus bar of the electric junction box which concerns on Embodiment 1.
  • FIG. It is explanatory drawing explaining the manufacturing method of the bus bar of the
  • FIG. 9 is a vertical cross-sectional view taken along line XX of FIG. 9 in a state where the bus bar is attached to the pedestal. It is a perspective view which shows the bus bar of the electric junction box which concerns on Embodiment 3.
  • FIG. 11 is a partial cross-sectional view taken along the line XII-XII of FIG. It is a perspective view which shows the bus bar of the electric connection box which concerns on Embodiment 4.
  • FIG. It is a perspective view which shows the 3rd piece of the bus bar of the electric junction box which concerns on Embodiment 4.
  • FIG. It is a perspective view which shows the bus bar of the electric junction box which concerns on Embodiment 5.
  • a bus bar to which a high voltage of 300 V or more is applied is manufactured from a thick conductive plate material in view of reduction of electric resistance, risk of heat generation, and the like.
  • the press processing of the progressive mold cannot be used because of the thick plate, and the single mold and transfer press processing of the standard length material are used, and it is suitable for the thin plate.
  • the pre-plating material cannot be used and the post-plating will be used. Therefore, there is a problem that the processing cost is high and the yield is low.
  • the bus bar according to the embodiment of the present disclosure is a bus bar for a vehicle, and includes a plurality of first pieces of the same shape made of a conductive plate material, and the plurality of first pieces are superimposed.
  • one bus bar is formed by superimposing a plurality of first pieces.
  • the thin plate can be pressed, and it is easier to manufacture a complicated shape than the thick plate. Therefore, when the bus bar has a complicated shape including a bent portion, productivity and workability can be improved by superimposing a plurality of first pieces to manufacture such a bus bar.
  • the bus bar according to the embodiment of the present disclosure is provided on a superimposing portion having the same shape as the first piece and superposed on the plurality of first pieces, and on the edge of the superimposing portion, and is a fixed object. It is provided with a second piece having a positioning portion for positioning with respect to.
  • the positioning portion of the second piece positions the fixing target. Therefore, the workability in the fixing work to the fixing target is improved.
  • each first piece has a position matching portion used for positioning with the other first piece.
  • each first piece since each first piece has the position matching portion, the positions of the first pieces are aligned by the position matching portion. Therefore, the convenience in handling the bus bar is enhanced.
  • the bus bar according to the embodiment of the present disclosure includes a third piece having the same shape as the first piece and having a superposed portion superimposed on the plurality of first pieces, and the third piece is It is provided on the edge of the overlapping portion and has an integrated engaging portion that integrates the third piece and the plurality of first pieces.
  • the third piece since the third piece has the integrated engaging portion, the third piece and the first piece are integrated by the integrated engaging portion. Therefore, the convenience in handling the bus bar is enhanced.
  • the plurality of first pieces have engaging recesses that engage with the integrated engaging portion of the third piece.
  • the third piece has the integrated engaging portion, and the plurality of first pieces each have the engaging recess.
  • the third piece and the first piece are integrated by engaging the integrally engaging portion and the engaging recess. Therefore, the convenience in handling the bus bar is enhanced.
  • the bus bar according to the embodiment of the present disclosure includes at least a cooling medium for cooling the heat generated by the first piece and a holding portion for holding the cooling medium.
  • the electrical connection box according to the embodiment of the present disclosure includes any one of the above-mentioned bus bars and a connection portion connected to the bus bar and connected to an external terminal.
  • the external terminal when an external terminal is connected to the connection portion, the external terminal is electrically connected to other parts of the electrical connection box via the bus bar.
  • FIG. 1 is a plan view of the electric connection box 100 according to the first embodiment
  • FIG. 2 is a side view of the electric connection box 100 according to the first embodiment.
  • the electric junction box 100 is attached to the outside of the EV (Electric Vehicle) battery pack, for example.
  • the electrical junction box 100 includes, for example, a housing 50 in which electrical components such as relays are mounted.
  • the housing 50 is made of, for example, resin, and includes a lower case 52 and an upper case 51 that covers the lower case 52.
  • the housing 50 is attached to the battery pack so that the bottom plate 521 of the lower case 52 faces the EV battery pack.
  • the upper case 51 is provided with bottomed tubular leg portions 511 at four positions, and through holes 512 are formed at the bottom of each leg portion 511.
  • the housing 50 (electrical junction box 100) can be attached to the battery pack by inserting a screw through the through hole 512 of the leg portion 511 and screwing it into the screw hole of the EV battery pack.
  • the bottom plate 521 of the lower case 52 faces the outer surface of the battery pack.
  • the electric junction box 100 side is the upper side and the battery pack side is the lower side in the opposite direction between the electric junction box 100 and the battery pack.
  • FIG. 3 is a bottom view showing a state in which the lower case 52 is removed in the electrical connection box 100 according to the first embodiment.
  • the upper case 51 has the shape of a housing whose one side is open, and a bus bar 40, a circuit element, and the like are attached to the inside of the upper case 51. Further, the upper case 51 has a ceiling plate 30 facing the bottom plate 521 of the lower case 52.
  • a plurality of mounting portions 11 for mounting electrical components such as relays are provided on the outer surface of the ceiling plate 30. Further, the ceiling plate 30 is provided with a plurality of connecting portions 20 for connecting to external fuses, connectors and the like.
  • the leg portions 511 are projected in the directions orthogonal to the ceiling plate 30 at the corners or the vicinity of the corners of the ceiling plate 30 and at positions where they do not interfere with the mounting portion 11 and the connecting portion 20.
  • Ribs are formed at a plurality of locations on the inner surface of the ceiling plate 30, and a plurality of pedestals 513 for mounting the bus bar 40, circuit elements, and the like are formed.
  • the bus bar 40, circuit elements and the like are attached to the corresponding pedestals 513.
  • FIG. 4 is a perspective view showing an example of a bus bar 40 attached to the electrical connection box 100 according to the first embodiment. Although not shown, at least one end of the bus bar 40 is electrically connected to the connection portion 20, and a relatively high voltage (for example, 300 V or more) is applied to the bus bar 40.
  • the bus bar 40 is composed of a plurality of first pieces 41.
  • Each first piece 41 is made of a thin plate material of a conductive metal (for example, copper).
  • each first piece has a thickness of 0.8 mm, and four first pieces 41 constitute one bus bar 40.
  • the four first pieces 41 are superimposed in the thickness direction, and the edges of each first piece 41 are aligned in the overlapping direction. That is, the four first pieces 41 have the same outer shape in a plan view. Therefore, the thickness of the bus bar 40 is 3.2 mm, which is the thickness of the four first pieces 41.
  • Each first piece is formed by bending a strip-shaped thin plate material at a plurality of places, and has an inverted U-shaped central portion 41A (bent portion) and a flat collar 41B extending from both ends of the central portion 41A. It consists of.
  • the central portion 41A and the flat collar 41B are integrally formed.
  • Each flat collar 41B is formed with a fixing hole 42 for fixing the first piece 41 (bus bar 40) to the pedestal 513 (fixing target) of the upper case 51.
  • the fixing hole 42 is a through hole that penetrates the first piece 41 in the thickness direction.
  • FIG. 5 is an explanatory diagram illustrating attachment of the electric junction box 100 according to the first embodiment to the pedestal 513 of the bus bar 40.
  • bolts 200 are inserted into the fixing holes 42 of the four first pieces 41 and screwed into the screw holes 300 of the pedestal 513, whereby the four first pieces 41 (busbars) are screwed into the screw holes 300. 40) is fixed to the pedestal 513.
  • the bus bar 40 of the present embodiment is composed of four first pieces 41 and has a thickness of 3.2 mm, it has substantially the same cross-sectional area as a single bus bar made of a plate material having a thickness of 3 mm. Therefore, it can be applied to a high voltage as well as a single bus bar.
  • the bus bar 40 of this embodiment is not limited to the above description.
  • the bus bar 40 may consist of a first piece 41 having more than four or less than four, and may have a shape having a bent portion. Further, for example, after superimposing the four first pieces 41, they may be integrated by welding or the like if necessary. Further, conductive grease may be applied between the first pieces 41 to increase the electrical conductivity.
  • FIG. 6A is an explanatory diagram illustrating a method of manufacturing the bus bar 40 of the electrical connection box 100 according to the first embodiment.
  • FIG. 6B is an explanatory diagram illustrating a method of manufacturing the bus bar 40 of the electrical connection box 100 according to the first embodiment.
  • the manufacturer manufactures the bus bar 40 (first piece 41) using a roll of a pre-plated thin copper material.
  • the manufacturer can batch-process the thin copper material by offsetting the bending position by the thickness of the plate material with a progressive mold.
  • a plurality of first pieces 41 are simultaneously generated by punching and bridge-cutting a thin copper material with such a progressive remittance mold and bending the copper material (see FIG. 6A).
  • FIG. 6B By cutting into each first piece 41, each first piece 41 is obtained (see FIG. 6B).
  • the bus bar 40 according to the first embodiment can be obtained.
  • the bus bar 40 in the bus bar 40 according to the present embodiment, a plurality of first pieces 41 made of thin plates having a thickness capable of press working of a progressive remittance mold are superposed so as to have a desired thickness (cross-sectional area). It becomes. Therefore, in the production of each first piece 41, progressive remittance mold processing using a pre-plated thin copper material is possible, the processing cost can be reduced, and the yield is high. Therefore, it is possible to reduce the manufacturing cost of the bus bar 40 (and the electric junction box 100 using the bus bar 40) according to the first embodiment.
  • FIG. 7 is a perspective view showing the bus bar 40A of the electrical connection box 100 according to the second embodiment.
  • the bus bar 40A has a positioning unit 433 for positioning the bus bar 40A with respect to the pedestal 513 (fixed object).
  • the bus bar 40A has, for example, three first piece 41 and a second piece 43 having a shape similar to that of the first piece 41.
  • the three first pieces 41 and the one second piece 43 are overlapped so as to be aligned in the respective thickness directions.
  • the bus bar 40A is fixed to the pedestal 513, the second piece 43 comes into contact with the pedestal 513. That is, the three first pieces 41 are fixed to the pedestal 513 via the second piece 43.
  • Both the first piece 41 and the second piece 43 have a thickness of, for example, 0.8 mm.
  • the first piece 41 has the same shape as that of the first embodiment, and detailed description thereof will be omitted.
  • FIG. 8 is a perspective view showing a second piece 43 of the bus bar 40A according to the second embodiment.
  • the second piece 43 has a superimposing portion 431 having the same shape as the first piece 41 and superimposing on the three first pieces 41, and a positioning portion 433 provided on both end sides of the superimposing portion 431. ..
  • the superimposing portion 431 has a flat collar 434 corresponding to the flat collar 41B of the first piece 41, and the flat collar 434 for fixing the second piece 43 (bus bar 40A) to the pedestal 513 of the upper case 51.
  • the fixing holes 432 of the above are formed respectively.
  • the fixing holes 42 of the first piece 41 and the fixing holes 432 of the second piece 43 are provided so that the positions of the fixing holes 42 of the first piece 41 and the fixing holes 432 of the second piece 43 are aligned in the overlapping direction when the first piece 41 and the second piece 43 are overlapped.
  • a positioning portion 433 extends from the edge of one end of the overlapping portion 431.
  • the positioning portion 433 has a bent plate shape.
  • the positioning portion 433 has a base portion 433A projecting in the direction along the surface of the flat collar 434 at one end of the overlapping portion 431 in which the fixing hole 432 is formed, and a engaging portion bent toward the pedestal 513 at the protruding end of the base portion 433A. It has a joint portion 433B. That is, the positioning portion 433 is provided in the vicinity of the fixing hole 432.
  • FIG. 9 is an explanatory view illustrating attachment of the electric junction box 100 to the pedestal 513 according to the second embodiment
  • FIG. 10 is an X of FIG. 9 in a state where the bus bar 40A is attached to the pedestal 513.
  • -It is a vertical sectional view by X-ray.
  • the pedestal 513 of the upper case 51 is provided with a recess 514 in advance.
  • the recess 514 has a rectangular opening, and of the two inner wall surfaces in the width direction, a step 513A is formed on the inner wall surface that comes into contact with the pull-out prevention portion 400 described later, and the dimension between the two inner wall surfaces is enlarged. There is.
  • the bus bar 40A When attaching the bus bar 40A, the bus bar 40A is temporarily fixed (positioned) by inserting and engaging the positioning portion 433 of the bus bar 40A in the recess 514 of the pedestal 513 of the upper case 51. After that, the bolt 200 is inserted into the fixing hole 42 of the first piece 41 and the fixing hole 432 of the second piece 43 and screwed into the screw hole 300 of the pedestal 513. At this time, since the bus bar 40A is temporarily fixed by the positioning portion 433, the fixing holes 42 and the fixing holes 432 do not shift in position, and the fixing work of the bus bar 40A becomes easy.
  • the engaging portion 433B is provided with a pull-out prevention portion 400 formed by cutting the central portion into a rectangular shape.
  • the pull-out prevention portion 400 is designed so that the base portion 433A side protrudes outward. Therefore, when the engaging portion 433B is inserted into the recess 514 of the pedestal 513, the disconnection prevention portion 400 comes into contact with the inner wall surface of the recess 514, and at this time, the base portion 433A side of the engagement portion 400 engages with the step 513A. Therefore, the engaging portion 433B is prevented from coming out of the recess 514.
  • the engaging portion 433B (second piece 43) can be prevented from coming out of the recess 514, and the bus bar 40A is temporarily fixed. Therefore, a square nut can be adopted as a nut (screw hole 300) for the bolt 200. Workability is improved when the electric junction box 100 is incorporated.
  • the positioning portion 433 is provided in the vicinity of the fixing hole 42 and the fixing hole 432, the effect of preventing the fixing hole 42 and the fixing hole 432 from being displaced during the fixing work of the bus bar 40A can be further enhanced. Can be done.
  • the electric connection box 100 according to the second embodiment is made of a thin copper material having a thickness in which the first piece 41 and the second piece 43 can be press-processed by a progressive remittance mold, as in the first embodiment. Therefore, when manufacturing each of the first piece 41 and the second piece 43, it is possible to perform progressive remittance mold processing using a pre-plated thin copper material.
  • the bending process of the positioning portion 433 and the formation of fine portions such as the pull-out prevention portion 400 can be performed collectively and easily by progressive remittance mold processing without increasing a separate process. Therefore, the processing cost can be reduced, the yield can be increased, and the manufacturing cost of the bus bar 40A (and the electric junction box 100) according to the second embodiment can be reduced.
  • the positioning unit 433 is provided on both ends of the superimposing unit 431 has been described, but the present invention is not limited to this, and the positioning unit 433 may be provided on any one end side of the superimposing unit 431.
  • FIG. 11 is a perspective view showing the bus bar 40B of the electrical connection box 100 according to the third embodiment
  • FIG. 12 is a partial cross-sectional view taken along the line XII-XII of FIG.
  • the bus bar 40B is composed of a plurality of (for example, four) first pieces 41 as in the first embodiment, and the four first pieces 41 are in the thickness direction thereof. It is superimposed so as to be consistent. For convenience of explanation, in FIGS. 11 and 12, some first pieces 41 are displayed at intervals.
  • each first piece 41 has substantially the same shape as that of the first embodiment, and each first piece 41 has a flat collar 413 corresponding to the flat collar 41B of the first embodiment. , A fixing hole 42 is formed in the flat collar 413. Further, in the third embodiment, each first piece 41 has a position matching portion 411 used for positioning with the other first piece 41.
  • Position matching portions 411 are provided on rectangular flat collars 413 at both ends of each first piece 41.
  • the position matching portion 411 is not limited to this, and may be formed only on one of the flat collars 413, or may be provided on a portion other than the flat collar 413.
  • the position matching portion 411 is formed, for example, by embossing with a progressive remittance mold.
  • the position matching portion 411 is a concave portion (or convex portion) formed in the flat collar 413.
  • a convex portion related to the position matching portion 411 is formed on one surface of the flat collar 413 of each first piece 41, and a concave portion related to the position matching portion 411 is formed on the other surface on the opposite side to the one surface. .. Therefore, the concave portion of the position matching portion 411 of the first piece 41 engages with the convex portion of the position matching portion 411 of the other first piece 41, and the convex portion of the position matching portion 411 of the first piece 41. Engages with the recess of the position matching portion 411 of the other first piece 41. Therefore, the misalignment of the first pieces 41 can be prevented, and the positions of all the first pieces 41 can be aligned in the overlapping direction.
  • the first pieces 41 are aligned with each other by the position matching portion 411. Therefore, the handleability of the bus bar 40B is improved, and the workability is improved when the electric junction box 100 is incorporated.
  • FIG. 13 is a perspective view showing the bus bar 40C of the electrical connection box 100 according to the fourth embodiment.
  • the bus bar 40C has a plurality of (for example, three) first pieces 41 and a third piece 44, which will be described later and has a shape similar to that of the first piece 41.
  • the three first pieces 41 and the one third piece 44 are overlapped so as to be aligned in each thickness direction.
  • the bus bar 40C is fixed to the pedestal 513, the third piece 44 comes into contact with the pedestal 513. That is, the three first pieces 41 are fixed to the pedestal 513 via the third piece 44.
  • FIG. 14 is a perspective view showing a third piece 44 of the bus bar 40C of the electrical connection box 100 according to the fourth embodiment. Further, in FIG. 14, for convenience of explanation, a plurality of first pieces 41 are partially shown by virtual lines. Note that FIG. 14 shows a state in which the plurality of first piece 41 and the third piece 44 are not integrated, which will be described later.
  • Both the first piece 41 and the third piece 44 have a thickness of, for example, 0.8 mm.
  • the first piece 41 has substantially the same shape as that of the first embodiment.
  • the third piece 44 has the same shape as the first piece 41 and is superposed on the three first pieces 41.
  • the integrated engaging portion 443 integrates the third piece 44 and the plurality of first pieces 41.
  • the superimposing portion 441 has substantially the same shape as the first piece 41, and has flat collars 444 corresponding to the flat collars 413 of the first piece 41 of the third embodiment at both ends.
  • Each flat collar 444 is formed with a fixing hole 442 for fixing the third piece 44 (bus bar 40C) to the pedestal 513 of the upper case 51.
  • the fixing holes 42 of the first piece 41 and the fixing holes 442 of the third piece 44 are provided so that the positions of the fixing holes 42 of the first piece 41 and the fixing holes 442 of the third piece 44 are aligned in the overlapping direction when the first piece 41 and the third piece 44 are superposed.
  • integrated engaging portions 443 are provided on the edges of both ends of the overlapping portion 441.
  • the integrated engaging portion 443 has a bent rectangular plate shape.
  • the integrated engaging portion 443 extends from the edge of the rectangular flat collar 444 of the overlapping portion 441 in which the fixing hole 442 is formed. Further, the end portion of the integrated engaging portion 443 is bent in the thickness direction of the flat collar 444, and the integrated engaging portion 443 has an L-shape in cross section as a whole. That is, the integrated engaging portion 443 has an engaging portion 443A extending in the direction along the surface of the flat collar 444, and a pressing portion 443B bent in the thickness direction of the flat collar 444 at the tip of the engaging portion 443A.
  • Each first piece 41 has substantially the same shape as that of the first embodiment, but differs in the shape of both ends.
  • engaging recesses 412 having a width corresponding to the integrated engaging portion 443 (engaging portion 443A) of the third piece 44 are provided at both ends of each first piece 41. It is formed.
  • the rectangular flat collar 413A in which the fixing hole 42 is formed has an engaging recess 412 at a position aligned with the integrated engaging portion 443 of the third piece 44 in the overlapping direction.
  • the engaging recess 412 is formed by cutting out the edge of the flat collar 413A in a rectangular shape.
  • the dimension of the engaging recess 412 is substantially the same as the width dimension of the engaging portion 443A of the integrated engaging portion 443.
  • 443A engages with the engaging recess 412 of each first piece 41.
  • the dimensions of the engaging portion 443A of the integrated engaging portion 443 in the overlapping direction are substantially the same as the sum of the thicknesses of the three first pieces 41.
  • the integration of the three first pieces 41 and the one third piece 44 will be described.
  • the three first pieces 41 and the one third piece 44 are superimposed so as to be aligned. That is, the three first pieces 41 are superposed on the third piece 44.
  • the integrated engaging portion 443 is in a state in which the engaging portion 443A extends in the direction along the surface of the flat collar 444.
  • the integrated engaging portion 443 (engaging portion 443A) is bent toward the first piece 41 (engaging recess 412) (in the direction of the arrow in FIG. 14), and the engaging portion 443A and each first piece 41 are engaged. Engage with recess 412.
  • the pressing portion 443B of the integrated engaging portion 443 abuts on the outer surface of the flat collar 413A of the first piece 41 farthest from the third piece 44, and the flat collar 413A is brought into contact with the flat collar of the third piece 44. Press to the 444 side.
  • the three first pieces 41 are sandwiched by the flat collar 444 of the third piece 44 and the pressing portion 443B of the integrated engaging portion 443. Further, since the engaging portion 443A of the integrated engaging portion 443 engages with the engaging recess 412 of each first piece 41, the first piece 41 is prevented from being displaced in the direction intersecting the overlapping direction. Therefore, the three first pieces 41 and the one third piece 44 are integrated.
  • the three first piece 41 and the one third piece 44 are integrated as a whole. Therefore, the handleability of the bus bar 40C is improved, and the workability is improved when the electric junction box 100 is incorporated.
  • the bus bar 40C is made of a thin copper material having a thickness in which the first piece 41 and the third piece 44 can be press-processed by a progressive remittance mold. Therefore, when manufacturing each of the first piece 41 and the third piece 44, it is possible to perform progressive remittance mold processing using a pre-plated thin copper material. In particular, even in the formation of a fine portion such as the integrated engaging portion 443, the progressive mold processing can be performed collectively and easily without increasing the number of separate steps. Therefore, the processing cost can be reduced, the yield can be increased, and the manufacturing cost of the bus bar 40C (and the electric junction box 100) according to the fourth embodiment can be reduced. Since the third piece 44 is made of a thin copper material, it is possible to easily bend the integrated engaging portion 443 during the above-mentioned integration operation.
  • FIG. 15 is a perspective view showing the bus bar 40D of the electrical connection box 100 according to the fifth embodiment.
  • the bus bar 40D has a plurality of (for example, three) first piece 41 and a fourth piece 45 described later.
  • the three first pieces 41 and the one fourth piece 45 are overlapped so as to be aligned in the respective thickness directions.
  • the fourth piece 45 is arranged at the position farthest from the pedestal 513.
  • the electrical junction box 100 includes a cooling medium 500 for cooling the heat generated from the bus bar 40D, and the cooling medium 500 is held by the holding portion 456 of the fourth piece 45.
  • the cooling medium 500 is filled with, for example, water, oil, or the like.
  • the present invention is not limited to this, and the cooling medium 500 may have a structure in which a flow path for water, oil, or the like is formed inside the cooling medium 500, or such a flow path may be connected to the outside. ..
  • FIG. 16 is a perspective view showing a fourth piece 45 of the bus bar 40D of the electrical connection box 100 according to the fifth embodiment. Further, FIG. 16 shows a state in which the cooling medium 500 is removed for convenience of explanation, and shows a state in which the engagement mechanism described later is released.
  • Both the first piece 41 and the fourth piece 45 have a thickness of, for example, 0.8 mm.
  • the first piece 41 has the same shape as that of the first embodiment, and detailed description thereof will be omitted.
  • the fourth piece 45 has the same shape as the first piece 41 and is provided with a superimposing portion 451 that is superposed on the three first pieces 41 and a cooling medium provided at the edge of the central portion of the superimposing portion 451. It has 500 holding parts 456.
  • the superimposing portion 451 has the same shape as the first piece 41, and fixing holes 452 for fixing the fourth piece 45 (bus bar 40D) to the pedestal 513 of the upper case 51 are formed at both ends.
  • the fixing holes 42 of the first piece 41 and the fixing holes 452 of the fourth piece 45 are provided so that the positions of the fixing holes 42 of the first piece 41 and the fixing holes 452 of the fourth piece 45 are aligned in the overlapping direction when the first piece 41 and the fourth piece 45 are overlapped with each other.
  • the overlapping portion 451 has a rectangular flat portion 453 at the center, and a holding portion 456 extends to a pair of edges of the flat portion 453.
  • the holding portion 456 includes a first constituent portion 454 provided on one edge of the flat portion 453 and a second constituent portion 455 provided on the other edge.
  • the first component 454 has a substantially rectangular plate shape that is bent so as to form an L shape in a cross-sectional view in the overlapping direction.
  • the first component 454 extends from one edge of the flat portion 453 in a direction intersecting the flat portion 453 and away from the first piece 41, and bends in the middle so as to be parallel to the flat portion 453. (See FIG. 15).
  • the first component 454 has an engagement notch 454A formed at the center of the edge on the distal end side.
  • the engagement notch 454A is an inverted trapezoid.
  • the engaging notch 454A engages with the engaging convex portion 455A of the second component 455, which will be described later.
  • the second component 455 has a substantially rectangular plate shape that is bent so as to form an L shape in a cross-sectional view in the overlapping direction.
  • the second component 455 extends from the other edge of the flat portion 453 in a direction intersecting the flat portion 453 and away from the first piece 41, and bends in the middle so as to be parallel to the flat portion 453. (See FIG. 15).
  • the second constituent portion 455 has an engaging convex portion 455A extending at the center of the edge on the distal end side, which corresponds to the engaging notch 454A of the first constituent portion 454.
  • the engaging convex portion 455A is an inverted trapezoid that imitates the engaging notch 454A, and projects in a direction along the surface of the second constituent portion 455.
  • the width dimension of the engaging convex portion 455A becomes larger as it is closer to the protruding tip.
  • the engaging notch 454A and the engaging convex portion 455A serve as the engaging mechanism of the holding portion 456. That is, the cooling medium 500 can be held by engaging the engaging notch 454A of the first component 454 and the engaging convex portion 455A of the second component 455.
  • the first constituent portion 454 and the second constituent portion 455 are bent in the direction in which they approach each other (the direction indicated by the arrow in FIG. 16). Be done. Then, the engaging notch 454A and the engaging convex portion 455A engage with each other. As a result, the cooling medium 500 is held by the fourth piece 45. In other words, the cooling medium 500 is sandwiched between the flat portion 453, the first constituent portion 454, and the second constituent portion 455.
  • the heat generated from the bus bar 40D is conducted to the cooling medium 500 and is rapidly cooled by the cooling medium 500.
  • the cooling medium 500 is sandwiched in a state of being surrounded by the flat portion 453, the first component 454, and the second component 455, the contact area with the cooling medium 500 is wide, and heat conduction to the cooling medium 500 is wide. Is fast.
  • the electrical connection box 100 according to the fifth embodiment is made of a thin copper material having a thickness in which the first piece 41 and the fourth piece 45 can be pressed by a progressive remittance mold. Therefore, when manufacturing each of the first piece 41 and the fourth piece 45, it is possible to perform progressive remittance mold processing using a pre-plated thin copper material. In particular, even in the formation of a complicated shape portion such as the holding portion 456, the progressive mold processing can be performed collectively and easily without increasing the number of separate steps. Therefore, the processing cost can be reduced, the yield can be increased, and the manufacturing cost of the bus bar 40D (and the electric junction box 100) according to the fifth embodiment can be reduced. Since the fourth piece 45 is made of a thin copper material, the first component 454 and the second component 455 can be easily bent when holding the cooling medium 500 described above.
  • the bus bar 40 according to the first to fifth embodiments may be used as a battery device for a vehicle without being limited to the above description.

Abstract

A bus bar (40) for a vehicle includes a plurality of first pieces (41) having the same shape and each comprising a conducting plate material, the plurality of first pieces (41) constituting one bus bar (40) by being superimposed such that the outside shapes thereof are aligned in plan view.

Description

バスバー及び電気接続箱Busbar and electrical junction box
　本開示は、バスバー及び該バスバーを用いた電気接続箱に関する。
　本出願は、２０２０年１月１０日出願の日本出願第２０２０－００２９６５号に基づく優先権を主張し、前記日本出願に記載された全ての記載内容を援用するものである。 The present disclosure relates to a bus bar and an electrical junction box using the bus bar.
This application claims priority based on Japanese Application No. 2020-002965 filed on January 10, 2020, and incorporates all the contents described in the Japanese application.
　従来、比較的大きな電流を導通させるための回路を構成する導電部材（バスバーとも称される）が用いられた基板が一般的に知られている。また、このような、バスバーには、接続の信頼性向上等のために、メッキ処理が行われる。 Conventionally, a substrate using a conductive member (also called a bus bar) that constitutes a circuit for conducting a relatively large current is generally known. Further, such a bus bar is plated in order to improve the reliability of connection and the like.
　特許文献１には、主面及び側面の間の角部分を丸くし、かつ、側面に凹部を形成したうえ、斯かるバスバーに絶縁被覆を行うことによって、バスバー表面にバリ等ができることを抑制することで、絶縁膜の耐久性を高めたバスバーが開示されている。 In Patent Document 1, the corners between the main surface and the side surface are rounded, recesses are formed on the side surfaces, and the bus bar is covered with an insulating coating to prevent burrs and the like from being formed on the surface of the bus bar. As a result, a bus bar with enhanced durability of the insulating film is disclosed.
特開２０１８－２００８４８JP-A-2018-200848
　本開示の実施形態に係るバスバーは、車両用のバスバーであって、導電性板材からなる、同一形状の第１片を複数含み、前記複数の第１片は重畳されている。 The bus bar according to the embodiment of the present disclosure is a bus bar for a vehicle, and includes a plurality of first pieces of the same shape made of a conductive plate material, and the plurality of first pieces are superimposed.
　本開示の実施形態に係る電気接続箱は、上述のバスバーと、前記バスバーに接続され、外部端子との接続を行う接続部とを備える。 The electrical junction box according to the embodiment of the present disclosure includes the above-mentioned bus bar and a connection portion connected to the bus bar and connected to an external terminal.
実施形態１に係る電気接続箱の平面図である。It is a top view of the electric junction box which concerns on Embodiment 1. FIG. 実施形態１に係る電気接続箱の側面図である。It is a side view of the electric connection box which concerns on Embodiment 1. FIG. 実施形態１に係る電気接続箱においてロウアーケースを取り外した状態を示す底面図である。It is a bottom view which shows the state which removed the lower case in the electric connection box which concerns on Embodiment 1. FIG. 実施形態１に係る電気接続箱に取り付けられるバスバーの一例を示す斜視図である。It is a perspective view which shows an example of the bus bar attached to the electric connection box which concerns on Embodiment 1. FIG. 実施形態１に係る電気接続箱のバスバーの台座への取り付けを説明する説明図である。It is explanatory drawing explaining the attachment to the pedestal of the bus bar of the electric junction box which concerns on Embodiment 1. FIG. 実施形態１に係る電気接続箱のバスバーの製造方法を説明する説明図である。It is explanatory drawing explaining the manufacturing method of the bus bar of the electric junction box which concerns on Embodiment 1. FIG. 実施形態１に係る電気接続箱のバスバーの製造方法を説明する説明図である。It is explanatory drawing explaining the manufacturing method of the bus bar of the electric junction box which concerns on Embodiment 1. FIG. 実施形態２に係る電気接続箱のバスバーを示す斜視図である。It is a perspective view which shows the bus bar of the electric connection box which concerns on Embodiment 2. FIG. 実施形態２に係るバスバーの第２片を示す斜視図である。It is a perspective view which shows the 2nd piece of the bus bar which concerns on Embodiment 2. FIG. 実施形態２に係る電気接続箱のバスバーの台座への取り付けを説明する説明図である。It is explanatory drawing explaining the attachment to the pedestal of the bus bar of the electric junction box which concerns on Embodiment 2. FIG. バスバーが台座に取り付けられた状態における、図９のＸ－Ｘ線による縦断面図である。9 is a vertical cross-sectional view taken along line XX of FIG. 9 in a state where the bus bar is attached to the pedestal. 実施形態３に係る電気接続箱のバスバーを示す斜視図である。It is a perspective view which shows the bus bar of the electric junction box which concerns on Embodiment 3. 図１１のＸII－ＸII線による部分断面図である。FIG. 11 is a partial cross-sectional view taken along the line XII-XII of FIG. 実施形態４に係る電気接続箱のバスバーを示す斜視図である。It is a perspective view which shows the bus bar of the electric connection box which concerns on Embodiment 4. FIG. 実施形態４に係る電気接続箱のバスバーの第３片を示す斜視図である。It is a perspective view which shows the 3rd piece of the bus bar of the electric junction box which concerns on Embodiment 4. FIG. 実施形態５に係る電気接続箱のバスバーを示す斜視図である。It is a perspective view which shows the bus bar of the electric junction box which concerns on Embodiment 5. 実施形態５に係る電気接続箱のバスバーの第４片を示す斜視図である。It is a perspective view which shows the 4th piece of the bus bar of the electric junction box which concerns on Embodiment 5.
［本開示が解決しようとする課題］
　一方、例えば、３００Ｖ以上の高い電圧が印加されるバスバーは、電気抵抗の低減、発熱の危険性等から、厚い導電性板材から製造されている。しかし、厚い板材を用いてバスバーを製造する場合、厚板故に順送金型のプレス加工が使用できず、定尺材での単型、トランスファープレス加工を用いることになり、かつ、薄板に適した先メッキ材が使えず後メッキを使うことになる。従って、加工費が高くなり、かつ歩留まりも低くなるという問題がある。 [Issues to be solved by this disclosure]
On the other hand, for example, a bus bar to which a high voltage of 300 V or more is applied is manufactured from a thick conductive plate material in view of reduction of electric resistance, risk of heat generation, and the like. However, when manufacturing a bus bar using a thick plate material, the press processing of the progressive mold cannot be used because of the thick plate, and the single mold and transfer press processing of the standard length material are used, and it is suitable for the thin plate. The pre-plating material cannot be used and the post-plating will be used. Therefore, there is a problem that the processing cost is high and the yield is low.
　しかしながら、特許文献１に係るバスバーは、このような問題に対して考慮されておらず、解決できない。 However, the bus bar according to Patent Document 1 is not considered for such a problem and cannot be solved.
　そこで、より低コストで、且つ容易に製造できるバスバー及び電気接続箱を提供することを目的とする。 Therefore, it is an object of the present invention to provide a bus bar and an electric junction box that can be easily manufactured at a lower cost.
［本開示の効果］
　本開示によれば、より低コストで、且つ容易に製造できるバスバー及び電気接続箱を提供できる。 [Effect of the present disclosure]
According to the present disclosure, it is possible to provide a bus bar and an electric junction box that can be easily manufactured at a lower cost.
［本発明の実施形態の説明］
　最初に本開示の実施態様を列挙して説明する。また、以下に記載する実施形態の少なくとも一部を任意に組み合わせてもよい。 [Explanation of Embodiments of the Present Invention]
First, embodiments of the present disclosure will be listed and described. In addition, at least a part of the embodiments described below may be arbitrarily combined.
（１）本開示の実施形態に係るバスバーは、車両用のバスバーであって、導電性板材からなる、同一形状の第１片を複数含み、前記複数の第１片は重畳されている。 (1) The bus bar according to the embodiment of the present disclosure is a bus bar for a vehicle, and includes a plurality of first pieces of the same shape made of a conductive plate material, and the plurality of first pieces are superimposed.
　本実施形態にあっては、複数の第１片を重畳することによって一つのバスバーを構成する。薄板はプレス加工が可能である等、厚板よりも複雑な形状物の製造が容易である。従って、前記バスバーが屈曲部を含む等複雑な形状である場合、複数の第１片を重畳して斯かるバスバーを製造することで生産性及び作業性を高めることができる。 In the present embodiment, one bus bar is formed by superimposing a plurality of first pieces. The thin plate can be pressed, and it is easier to manufacture a complicated shape than the thick plate. Therefore, when the bus bar has a complicated shape including a bent portion, productivity and workability can be improved by superimposing a plurality of first pieces to manufacture such a bus bar.
（２）本開示の実施形態に係るバスバーは、前記第１片と同じ形状を有して前記複数の第１片と重畳される重畳部、及び、該重畳部の縁に設けられ、固定対象に対する位置決めを行う位置決め部を有する第２片を備える。 (2) The bus bar according to the embodiment of the present disclosure is provided on a superimposing portion having the same shape as the first piece and superposed on the plurality of first pieces, and on the edge of the superimposing portion, and is a fixed object. It is provided with a second piece having a positioning portion for positioning with respect to.
　本実施形態にあっては、前記バスバーが固定対象に固定される際、前記第２片の前記位置決め部が固定対象に対して位置決めを行う。従って、固定対象への固定作業における作業性が高まる。 In the present embodiment, when the bus bar is fixed to the fixing target, the positioning portion of the second piece positions the fixing target. Therefore, the workability in the fixing work to the fixing target is improved.
（３）本開示の実施形態に係るバスバーは、各第１片は、他の第１片との位置合わせに用いられる位置整合部を有する。 (3) In the bus bar according to the embodiment of the present disclosure, each first piece has a position matching portion used for positioning with the other first piece.
　本実施形態にあっては、各第１片が前記位置整合部を有するので、第１片同士が前記位置整合部によって位置が揃えられる。従って、前記バスバーの取り扱いにおける利便性が高まる。 In the present embodiment, since each first piece has the position matching portion, the positions of the first pieces are aligned by the position matching portion. Therefore, the convenience in handling the bus bar is enhanced.
（４）本開示の実施形態に係るバスバーは、前記第１片と同じ形状を有して前記複数の第１片と重畳される重畳部を有する第３片を備え、前記第３片は、該重畳部の縁に設けられ、前記第３片及び前記複数の第１片を一体化させる一体化係合部を有する。 (4) The bus bar according to the embodiment of the present disclosure includes a third piece having the same shape as the first piece and having a superposed portion superimposed on the plurality of first pieces, and the third piece is It is provided on the edge of the overlapping portion and has an integrated engaging portion that integrates the third piece and the plurality of first pieces.
　本実施形態にあっては、前記第３片が前記一体化係合部を有するので、前記第３片及び前記第１片が前記一体化係合部によって一体化される。従って、前記バスバーの取り扱いにおける利便性が高まる。 In the present embodiment, since the third piece has the integrated engaging portion, the third piece and the first piece are integrated by the integrated engaging portion. Therefore, the convenience in handling the bus bar is enhanced.
（５）本開示の実施形態に係るバスバーは、前記複数の第１片は、前記第３片の前記一体化係合部と係合する係合凹部を有する。 (5) In the bus bar according to the embodiment of the present disclosure, the plurality of first pieces have engaging recesses that engage with the integrated engaging portion of the third piece.
　本実施形態にあっては、前記第３片が前記一体化係合部を有し、前記複数の第１片が前記係合凹部を夫々有する。前記一体係合部と前記係合凹部とが係合することによって前記第３片及び前記第１片が一体化される。従って、前記バスバーの取り扱いにおける利便性が高まる。 In the present embodiment, the third piece has the integrated engaging portion, and the plurality of first pieces each have the engaging recess. The third piece and the first piece are integrated by engaging the integrally engaging portion and the engaging recess. Therefore, the convenience in handling the bus bar is enhanced.
（６）本開示の実施形態に係るバスバーは、少なくとも第１片で発する熱を冷却させる冷却媒体と、前記冷却媒体を保持する保持部とを備える。 (6) The bus bar according to the embodiment of the present disclosure includes at least a cooling medium for cooling the heat generated by the first piece and a holding portion for holding the cooling medium.
　本実施形態にあっては、例えば前記第１片にて熱が発生した場合、前記保持部を介して前記冷却媒体に伝導され、冷却される。従って、前記バスバーにて生じ得る発熱による弊害を未然に防止出来る。 In the present embodiment, for example, when heat is generated in the first piece, it is conducted to the cooling medium through the holding portion and cooled. Therefore, it is possible to prevent adverse effects due to heat generation that may occur in the bus bar.
（７）本開示の実施形態に係る電気接続箱は、上述したいずれか一つのバスバーと、前記バスバーに接続され、外部端子との接続を行う接続部とを備える。 (7) The electrical connection box according to the embodiment of the present disclosure includes any one of the above-mentioned bus bars and a connection portion connected to the bus bar and connected to an external terminal.
　本実施形態にあっては、例えば外部端子が前記接続部に接続された場合、斯かる外部端子は前記バスバーを介して前記電気接続箱の他の部品と電気的に接続される。 In the present embodiment, for example, when an external terminal is connected to the connection portion, the external terminal is electrically connected to other parts of the electrical connection box via the bus bar.
[本発明の実施形態の詳細]
　本開示の実施形態に係るバスバー及び電気接続箱を、以下に図面を参照しつつ説明する。なお、本発明はこれらの例示に限定されるものではなく、請求の範囲によって示され、請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。 [Details of Embodiments of the present invention]
The bus bar and the electrical junction box according to the embodiment of the present disclosure will be described below with reference to the drawings. It should be noted that the present invention is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.
（実施形態１）
　以下においては、本開示の実施形態に係るバスバーが装着された車両用の電気接続箱を例として本実施形態を説明する。 (Embodiment 1)
In the following, the present embodiment will be described by taking as an example an electric junction box for a vehicle equipped with a bus bar according to the embodiment of the present disclosure.
　図１は、実施形態１に係る電気接続箱１００の平面図であり、図２は、実施形態１に係る電気接続箱１００の側面図である。 FIG. 1 is a plan view of the electric connection box 100 according to the first embodiment, and FIG. 2 is a side view of the electric connection box 100 according to the first embodiment.
　電気接続箱１００は、例えば、ＥＶ（Electric Vehicle）の電池パックの外側に取り付けられる。電気接続箱１００は、例えば、リレー等の電気部品が装着される筐体５０を備える。 The electric junction box 100 is attached to the outside of the EV (Electric Vehicle) battery pack, for example. The electrical junction box 100 includes, for example, a housing 50 in which electrical components such as relays are mounted.
　筐体５０は、例えば樹脂からなり、ロウアーケース５２と、ロウアーケース５２を覆うアッパーケース５１とからなる。筐体５０は、ロウアーケース５２の底板５２１がＥＶの電池パックに面するよう、電池パックに取り付けられる。 The housing 50 is made of, for example, resin, and includes a lower case 52 and an upper case 51 that covers the lower case 52. The housing 50 is attached to the battery pack so that the bottom plate 521 of the lower case 52 faces the EV battery pack.
　より詳しくは、アッパーケース５１には、有底筒状の脚部５１１が四ヶ所に設けられており、各脚部５１１の底には貫通孔５１２が形成されている。例えば、脚部５１１の貫通孔５１２にネジを挿通させてＥＶの電池パックのネジ孔に螺合させることによって、筐体５０（電気接続箱１００）を電池パックに取り付けることができる。この際、ロウアーケース５２の底板５２１が電池パックの外側面と対向する。
　以下、説明の便宜上、電気接続箱１００と電池パックとの対向方向において、電気接続箱１００側を上側とし、電池パック側を下側とする。 More specifically, the upper case 51 is provided with bottomed tubular leg portions 511 at four positions, and through holes 512 are formed at the bottom of each leg portion 511. For example, the housing 50 (electrical junction box 100) can be attached to the battery pack by inserting a screw through the through hole 512 of the leg portion 511 and screwing it into the screw hole of the EV battery pack. At this time, the bottom plate 521 of the lower case 52 faces the outer surface of the battery pack.
Hereinafter, for convenience of explanation, the electric junction box 100 side is the upper side and the battery pack side is the lower side in the opposite direction between the electric junction box 100 and the battery pack.
　図３は、実施形態１に係る電気接続箱１００においてロウアーケース５２を取り外した状態を示す底面図である。
　アッパーケース５１は一面が開放された筐体の形状をなしており、アッパーケース５１の内側には、バスバー４０、回路素子等が取り付けられている。
　また、アッパーケース５１は、ロウアーケース５２の底板５２１と対向する天井板３０を有している。 FIG. 3 is a bottom view showing a state in which the lower case 52 is removed in the electrical connection box 100 according to the first embodiment.
The upper case 51 has the shape of a housing whose one side is open, and a bus bar 40, a circuit element, and the like are attached to the inside of the upper case 51.
Further, the upper case 51 has a ceiling plate 30 facing the bottom plate 521 of the lower case 52.
　天井板３０の外側面には、リレー等の電気部品を装着するための装着部１１が複数設けられている。また、天井板３０には、外部のヒューズ、コネクタ等と接続を行う接続部２０が複数設けられている。なお、天井板３０の隅又は隅の付近であって、装着部１１及び接続部２０と干渉しない位置には、脚部５１１が天井板３０と直交する方向にそれぞれ突設されている。 A plurality of mounting portions 11 for mounting electrical components such as relays are provided on the outer surface of the ceiling plate 30. Further, the ceiling plate 30 is provided with a plurality of connecting portions 20 for connecting to external fuses, connectors and the like. The leg portions 511 are projected in the directions orthogonal to the ceiling plate 30 at the corners or the vicinity of the corners of the ceiling plate 30 and at positions where they do not interfere with the mounting portion 11 and the connecting portion 20.
　天井板３０の内側面には、複数箇所にリブ（図示せず）が形成されており、バスバー４０、回路素子等を取り付けるための台座５１３が複数形成されている。バスバー４０、回路素子等は対応する台座５１３に取り付けられている。 Ribs (not shown) are formed at a plurality of locations on the inner surface of the ceiling plate 30, and a plurality of pedestals 513 for mounting the bus bar 40, circuit elements, and the like are formed. The bus bar 40, circuit elements and the like are attached to the corresponding pedestals 513.
　図４は、実施形態１に係る電気接続箱１００に取り付けられるバスバー４０の一例を示す斜視図である。図示を省略するが、バスバー４０の少なくとも一端は、接続部２０に電気的に接続されており、バスバー４０には比較的に高い電圧（例えば、３００Ｖ以上）が印加される。
　実施形態１に係る電気接続箱１００において、バスバー４０は、複数の第１片４１からなる。 FIG. 4 is a perspective view showing an example of a bus bar 40 attached to the electrical connection box 100 according to the first embodiment. Although not shown, at least one end of the bus bar 40 is electrically connected to the connection portion 20, and a relatively high voltage (for example, 300 V or more) is applied to the bus bar 40.
In the electrical connection box 100 according to the first embodiment, the bus bar 40 is composed of a plurality of first pieces 41.
　各第１片４１は、導電性金属（例えば、銅）の薄板材からなる。例えば、本実施形態においては、各第１片は厚みが０．８ｍｍであり、４枚の第１片４１が一つのバスバー４０を構成する。４枚の第１片４１はその厚み方向にて重畳しており、各第１片４１は重畳方向にてその縁が揃っている。即ち、４枚の第１片４１は平面視の外形を揃えている。従って、バスバー４０の厚みは４枚の第１片４１の厚みであって、３．２ｍｍである。 Each first piece 41 is made of a thin plate material of a conductive metal (for example, copper). For example, in the present embodiment, each first piece has a thickness of 0.8 mm, and four first pieces 41 constitute one bus bar 40. The four first pieces 41 are superimposed in the thickness direction, and the edges of each first piece 41 are aligned in the overlapping direction. That is, the four first pieces 41 have the same outer shape in a plan view. Therefore, the thickness of the bus bar 40 is 3.2 mm, which is the thickness of the four first pieces 41.
　各第１片は、短冊状の薄板材を複数箇所にて屈曲させてなり、倒立のＵ字形状をなす中心部４１Ａ（屈曲部）と、中心部４１Ａの両端から延設された扁平鍔４１Ｂとからなる。中心部４１Ａ及び扁平鍔４１Ｂは一体形成されている。各扁平鍔４１Ｂには、第１片４１（バスバー４０）をアッパーケース５１の台座５１３（固定対象）に固定するための固定孔４２が夫々形成されている。固定孔４２は第１片４１を厚み方向に貫通する貫通孔である。 Each first piece is formed by bending a strip-shaped thin plate material at a plurality of places, and has an inverted U-shaped central portion 41A (bent portion) and a flat collar 41B extending from both ends of the central portion 41A. It consists of. The central portion 41A and the flat collar 41B are integrally formed. Each flat collar 41B is formed with a fixing hole 42 for fixing the first piece 41 (bus bar 40) to the pedestal 513 (fixing target) of the upper case 51. The fixing hole 42 is a through hole that penetrates the first piece 41 in the thickness direction.
　図５は、実施形態１に係る電気接続箱１００のバスバー４０の台座５１３への取り付けを説明する説明図である。図５に示すように、４枚の第１片４１の固定孔４２の夫々にボルト２００が挿通され、台座５１３のネジ穴３００に螺合されることによって、４枚の第１片４１（バスバー４０）が台座５１３に固定される。 FIG. 5 is an explanatory diagram illustrating attachment of the electric junction box 100 according to the first embodiment to the pedestal 513 of the bus bar 40. As shown in FIG. 5, bolts 200 are inserted into the fixing holes 42 of the four first pieces 41 and screwed into the screw holes 300 of the pedestal 513, whereby the four first pieces 41 (busbars) are screwed into the screw holes 300. 40) is fixed to the pedestal 513.
　上述の如く、本実施形態のバスバー４０は、４枚の第１片４１からなり、厚みが３．２ｍｍであるので、厚み３ｍｍの板材からなる単体のバスバーと略同じ断面積を有する。従って、単体のバスバーと同様、高電圧にも適用することができる。 As described above, since the bus bar 40 of the present embodiment is composed of four first pieces 41 and has a thickness of 3.2 mm, it has substantially the same cross-sectional area as a single bus bar made of a plate material having a thickness of 3 mm. Therefore, it can be applied to a high voltage as well as a single bus bar.
　本実施形態のバスバー４０は以上の記載に限定されるものではない。バスバー４０は、４枚より多い、又は４枚より少ない第１片４１からなってもよく、屈曲した部分を有する形状であれば良い。また、例えば、４枚の第１片４１を重畳させた後、必要に応じて溶接等で一体化しても良い。また、第１片４１同士の間に導電性グリスを塗布して通電性を高めても良い。 The bus bar 40 of this embodiment is not limited to the above description. The bus bar 40 may consist of a first piece 41 having more than four or less than four, and may have a shape having a bent portion. Further, for example, after superimposing the four first pieces 41, they may be integrated by welding or the like if necessary. Further, conductive grease may be applied between the first pieces 41 to increase the electrical conductivity.
　図６Aは、実施形態１に係る電気接続箱１００のバスバー４０の製造方法を説明する説明図である。図６Bは、実施形態１に係る電気接続箱１００のバスバー４０の製造方法を説明する説明図である。
　製造者は、先メッキ処理済みの薄板の銅材のロールを用いてバスバー４０（第１片４１）を製造する。製造者は、薄板の銅材を順送金型で曲げ位置を板材の厚み分だけオフセットして一括加工することができる。斯かる順送金型にて薄板の銅材に対して打ち抜き及びブリッジカットを行い、屈曲させることによって、複数の第１片４１を同時に生成する（図６Ａ参照）。その後、各第１片４１に切断することによって、各第１片４１が得られる（図６Ｂ参照）。このようにして製造された４枚の第１片４１が揃えるように重畳させることによって、実施形態１に係るバスバー４０が得られる。 FIG. 6A is an explanatory diagram illustrating a method of manufacturing the bus bar 40 of the electrical connection box 100 according to the first embodiment. FIG. 6B is an explanatory diagram illustrating a method of manufacturing the bus bar 40 of the electrical connection box 100 according to the first embodiment.
The manufacturer manufactures the bus bar 40 (first piece 41) using a roll of a pre-plated thin copper material. The manufacturer can batch-process the thin copper material by offsetting the bending position by the thickness of the plate material with a progressive mold. A plurality of first pieces 41 are simultaneously generated by punching and bridge-cutting a thin copper material with such a progressive remittance mold and bending the copper material (see FIG. 6A). Then, by cutting into each first piece 41, each first piece 41 is obtained (see FIG. 6B). By superimposing the four first pieces 41 manufactured in this manner so as to be aligned with each other, the bus bar 40 according to the first embodiment can be obtained.
　従来において厚み３ｍｍのバスバーを製造するためには、厚み３ｍｍ程度の厚板の銅材を用いていた。この場合、厚板故に順送金型のプレス加工が使用できず、定尺材での単型、トランスファープレス加工を用いることになり、加工費が高くなるうえに、歩留まりも低い。 Conventionally, in order to manufacture a bus bar with a thickness of 3 mm, a thick copper material having a thickness of about 3 mm has been used. In this case, since the plate is a thick plate, the press working of the progressive mold cannot be used, and the monotypic taxon and the transfer press working with the standard length material are used, which increases the processing cost and the yield is low.
　これに対して、本実施形態に係るバスバー４０においては、順送金型のプレス加工が可能な厚みの薄板からなる第１片４１を、目的とする厚み（断面積）になるよう、複数重畳してなる。従って、各第１片４１の製造において、先メッキ処理済みの薄板の銅材を用いた順送金型加工が可能であり、加工費が低減できるうえ、歩留まりが高い。よって、実施形態１に係るバスバー４０（及びこれを用いて電気接続箱１００）の製造コスト削減を図ることができる。 On the other hand, in the bus bar 40 according to the present embodiment, a plurality of first pieces 41 made of thin plates having a thickness capable of press working of a progressive remittance mold are superposed so as to have a desired thickness (cross-sectional area). It becomes. Therefore, in the production of each first piece 41, progressive remittance mold processing using a pre-plated thin copper material is possible, the processing cost can be reduced, and the yield is high. Therefore, it is possible to reduce the manufacturing cost of the bus bar 40 (and the electric junction box 100 using the bus bar 40) according to the first embodiment.
（実施形態２）
　図７は、実施形態２に係る電気接続箱１００のバスバー４０Ａを示す斜視図である。実施形態２に係る電気接続箱１００においては、バスバー４０Ａが台座５１３（固定対象）に対するバスバー４０Ａの位置決めを行うための位置決め部４３３を有している。 (Embodiment 2)
FIG. 7 is a perspective view showing the bus bar 40A of the electrical connection box 100 according to the second embodiment. In the electrical connection box 100 according to the second embodiment, the bus bar 40A has a positioning unit 433 for positioning the bus bar 40A with respect to the pedestal 513 (fixed object).
　本実施形態に係るバスバー４０Ａは、例えば３枚の第１片４１と、第１片４１と類似形状の第２片４３とを有する。３枚の第１片４１と１枚の第２片４３とは夫々の厚み方向にて整合するように重畳している。バスバー４０Ａが台座５１３に固定される際、第２片４３は台座５１３と当接する。即ち、３枚の第１片４１は第２片４３を介して台座５１３に固定される。 The bus bar 40A according to the present embodiment has, for example, three first piece 41 and a second piece 43 having a shape similar to that of the first piece 41. The three first pieces 41 and the one second piece 43 are overlapped so as to be aligned in the respective thickness directions. When the bus bar 40A is fixed to the pedestal 513, the second piece 43 comes into contact with the pedestal 513. That is, the three first pieces 41 are fixed to the pedestal 513 via the second piece 43.
　第１片４１及び第２片４３は何れも厚みが例えば０．８ｍｍである。第１片４１は、実施形態１と同じ形状であり、詳しい説明を省略する。
　図８は、実施形態２に係るバスバー４０Ａの第２片４３を示す斜視図である。
　第２片４３は、第１片４１と同じ形状を有して３枚の第１片４１と重畳される重畳部４３１、及び、該重畳部４３１の両端側に設けられた位置決め部４３３を有する。 Both the first piece 41 and the second piece 43 have a thickness of, for example, 0.8 mm. The first piece 41 has the same shape as that of the first embodiment, and detailed description thereof will be omitted.
FIG. 8 is a perspective view showing a second piece 43 of the bus bar 40A according to the second embodiment.
The second piece 43 has a superimposing portion 431 having the same shape as the first piece 41 and superimposing on the three first pieces 41, and a positioning portion 433 provided on both end sides of the superimposing portion 431. ..
　重畳部４３１は、第１片４１の扁平鍔４１Ｂに相当する扁平鍔４３４を有しており、扁平鍔４３４には、第２片４３（バスバー４０Ａ）をアッパーケース５１の台座５１３に固定するための固定孔４３２が夫々形成されている。第１片４１の固定孔４２及び第２片４３の固定孔４３２は、第１片４１及び第２片４３が重畳する際、斯かる重畳方向においてその位置が整合するように設けられている。 The superimposing portion 431 has a flat collar 434 corresponding to the flat collar 41B of the first piece 41, and the flat collar 434 for fixing the second piece 43 (bus bar 40A) to the pedestal 513 of the upper case 51. The fixing holes 432 of the above are formed respectively. The fixing holes 42 of the first piece 41 and the fixing holes 432 of the second piece 43 are provided so that the positions of the fixing holes 42 of the first piece 41 and the fixing holes 432 of the second piece 43 are aligned in the overlapping direction when the first piece 41 and the second piece 43 are overlapped.
　また、重畳部４３１の一端の縁には位置決め部４３３が延設されている。位置決め部４３３は、屈曲した板状をなしている。位置決め部４３３は、固定孔４３２が形成された重畳部４３１の一端部の扁平鍔４３４の面に沿う方向に突設された基部４３３Ａと、基部４３３Ａの突出端にて台座５１３側に屈曲した係合部４３３Ｂとを有する。即ち、位置決め部４３３は、固定孔４３２の近傍に設けられている。 Further, a positioning portion 433 extends from the edge of one end of the overlapping portion 431. The positioning portion 433 has a bent plate shape. The positioning portion 433 has a base portion 433A projecting in the direction along the surface of the flat collar 434 at one end of the overlapping portion 431 in which the fixing hole 432 is formed, and a engaging portion bent toward the pedestal 513 at the protruding end of the base portion 433A. It has a joint portion 433B. That is, the positioning portion 433 is provided in the vicinity of the fixing hole 432.
　このように、実施形態２に係る電気接続箱１００は、バスバー４０Ａが位置決め部４３３を有するので、電気接続箱１００の組み込みにおいて作業性が高まる。
　図９は、実施形態２に係る電気接続箱１００のバスバー４０Ａの台座５１３への取り付けを説明する説明図であり、図１０は、バスバー４０Ａが台座５１３に取り付けられた状態における、図９のＸ－Ｘ線による縦断面図である。 As described above, in the electric connection box 100 according to the second embodiment, since the bus bar 40A has the positioning portion 433, the workability is improved in incorporating the electric connection box 100.
FIG. 9 is an explanatory view illustrating attachment of the electric junction box 100 to the pedestal 513 according to the second embodiment, and FIG. 10 is an X of FIG. 9 in a state where the bus bar 40A is attached to the pedestal 513. -It is a vertical sectional view by X-ray.
　アッパーケース５１の台座５１３には予め凹部５１４が設けられている。凹部５１４は、長方形の開口を有し、幅方向の両内壁面のうち、後述の抜け防止部４００と当接する内壁面に段差５１３Ａが形成され、前記両内壁面の間の寸法が拡大されている。 The pedestal 513 of the upper case 51 is provided with a recess 514 in advance. The recess 514 has a rectangular opening, and of the two inner wall surfaces in the width direction, a step 513A is formed on the inner wall surface that comes into contact with the pull-out prevention portion 400 described later, and the dimension between the two inner wall surfaces is enlarged. There is.
　バスバー４０Ａを取り付ける際、アッパーケース５１の台座５１３の凹部５１４に、バスバー４０Ａの位置決め部４３３が挿入されて係合することによって、バスバー４０Ａが仮止め（位置決め）される。その後、ボルト２００を第１片４１の固定孔４２及び第２片４３の固定孔４３２に挿通させて台座５１３のネジ穴３００に螺合させる。この際、バスバー４０Ａが位置決め部４３３によって仮止めされているので、固定孔４２及び固定孔４３２の位置ずれが生じず、バスバー４０Ａの固定作業が容易になる。 When attaching the bus bar 40A, the bus bar 40A is temporarily fixed (positioned) by inserting and engaging the positioning portion 433 of the bus bar 40A in the recess 514 of the pedestal 513 of the upper case 51. After that, the bolt 200 is inserted into the fixing hole 42 of the first piece 41 and the fixing hole 432 of the second piece 43 and screwed into the screw hole 300 of the pedestal 513. At this time, since the bus bar 40A is temporarily fixed by the positioning portion 433, the fixing holes 42 and the fixing holes 432 do not shift in position, and the fixing work of the bus bar 40A becomes easy.
　係合部４３３Ｂには、その中央部を矩形に切り起こして形成された抜け防止部４００が設けられている。抜け防止部４００は、基部４３３Ａ側が外側に突出するようにしている。従って、係合部４３３Ｂが台座５１３の凹部５１４に挿入された場合、抜け防止部４００が凹部５１４の内壁面に弾接し、この際、抜け防止部４００の基部４３３Ａ側が段差５１３Ａと係合する。よって、係合部４３３Ｂが凹部５１４から抜け出ることが防止される。 The engaging portion 433B is provided with a pull-out prevention portion 400 formed by cutting the central portion into a rectangular shape. The pull-out prevention portion 400 is designed so that the base portion 433A side protrudes outward. Therefore, when the engaging portion 433B is inserted into the recess 514 of the pedestal 513, the disconnection prevention portion 400 comes into contact with the inner wall surface of the recess 514, and at this time, the base portion 433A side of the engagement portion 400 engages with the step 513A. Therefore, the engaging portion 433B is prevented from coming out of the recess 514.
　このように、係合部４３３Ｂ（第２片４３）が凹部５１４から抜け出ることが防止でき、かつバスバー４０Ａが仮止めされるので、ボルト２００に対するナット（ネジ穴３００）として四角ナットを採用でき、電気接続箱１００の組み込みにおいて作業性が高まる。 In this way, the engaging portion 433B (second piece 43) can be prevented from coming out of the recess 514, and the bus bar 40A is temporarily fixed. Therefore, a square nut can be adopted as a nut (screw hole 300) for the bolt 200. Workability is improved when the electric junction box 100 is incorporated.
　即ち、バスバーが台座から離脱しないようにするため、いわゆるピアスナットを用いてバスバーを台座に固定する必要があったが、手間が大きい作業である。これに対して、電気接続箱１００においては、係合部４３３Ｂと凹部５１４との係合によってバスバー４０Ａが台座５１３から外れることが防止できるので、ピアスナットを使用する必要がなく、図１０に示すように、作業が簡単な四角ナットを用いることができる。 That is, in order to prevent the bus bar from coming off the pedestal, it was necessary to fix the bus bar to the pedestal using so-called pierce nuts, but this is a laborious task. On the other hand, in the electric junction box 100, since the bus bar 40A can be prevented from being disengaged from the pedestal 513 by the engagement between the engaging portion 433B and the recess 514, it is not necessary to use a pierce nut, which is shown in FIG. As such, a square nut that is easy to work with can be used.
　また、位置決め部４３３が、固定孔４２及び固定孔４３２の近傍に設けられているので、バスバー４０Ａの固定作業の際に、固定孔４２及び固定孔４３２の位置ずれを防止する効果を一層高めることができる。 Further, since the positioning portion 433 is provided in the vicinity of the fixing hole 42 and the fixing hole 432, the effect of preventing the fixing hole 42 and the fixing hole 432 from being displaced during the fixing work of the bus bar 40A can be further enhanced. Can be done.
　更に、実施形態２に係る電気接続箱１００は、実施形態１と同様、第１片４１及び第２片４３が順送金型のプレス加工が可能な厚みの薄板の銅材からなる。従って、各第１片４１及び第２片４３の製造の際、先メッキ処理済みの薄板の銅材を用いた順送金型加工が可能である。特に、位置決め部４３３の曲げ処理、抜け防止部４００のような細かい部分の形成においても、別途工程を増やすことなく、順送金型加工にて一括、且つ簡単にできる。従って、加工費が低減できるうえ、歩留まりが高くなり、実施形態２に係るバスバー４０Ａ（及び電気接続箱１００）の製造コスト削減を図ることができる。 Further, the electric connection box 100 according to the second embodiment is made of a thin copper material having a thickness in which the first piece 41 and the second piece 43 can be press-processed by a progressive remittance mold, as in the first embodiment. Therefore, when manufacturing each of the first piece 41 and the second piece 43, it is possible to perform progressive remittance mold processing using a pre-plated thin copper material. In particular, the bending process of the positioning portion 433 and the formation of fine portions such as the pull-out prevention portion 400 can be performed collectively and easily by progressive remittance mold processing without increasing a separate process. Therefore, the processing cost can be reduced, the yield can be increased, and the manufacturing cost of the bus bar 40A (and the electric junction box 100) according to the second embodiment can be reduced.
　以上においては、位置決め部４３３が重畳部４３１の両端側に設けられた場合について説明したが、これに限定されるものではなく、重畳部４３１の何れか一端側に設けても良い。 In the above, the case where the positioning unit 433 is provided on both ends of the superimposing unit 431 has been described, but the present invention is not limited to this, and the positioning unit 433 may be provided on any one end side of the superimposing unit 431.
　実施形態１と同様の部分については、同一の符号を付して詳細な説明を省略する。 The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
（実施形態３）
　図１１は、実施形態３に係る電気接続箱１００のバスバー４０Ｂを示す斜視図であり、図１２は、図１１のＸII－ＸII線による部分断面図である。実施形態３に係る電気接続箱１００においては、バスバー４０Ｂは、実施形態１と同様、複数（例えば、４枚）の第１片４１からなり、４枚の第１片４１はその厚み方向にて整合するように重畳している。
　なお、説明の便宜上、図１１及び図１２においては、一部の第１片４１同士間に間隔を開けて表示している。 (Embodiment 3)
FIG. 11 is a perspective view showing the bus bar 40B of the electrical connection box 100 according to the third embodiment, and FIG. 12 is a partial cross-sectional view taken along the line XII-XII of FIG. In the electrical junction box 100 according to the third embodiment, the bus bar 40B is composed of a plurality of (for example, four) first pieces 41 as in the first embodiment, and the four first pieces 41 are in the thickness direction thereof. It is superimposed so as to be consistent.
For convenience of explanation, in FIGS. 11 and 12, some first pieces 41 are displayed at intervals.
　実施形態３のバスバー４０Ｂは、各第１片４１が実施形態１と略同じ形状を有しており、各第１片４１は、実施形態１の扁平鍔４１Ｂに相当する扁平鍔４１３を有し、扁平鍔４１３には固定孔４２が形成されている。更に、実施形態３においては、各第１片４１が他の第１片４１との位置合わせに用いられる位置整合部４１１を有している。 In the bus bar 40B of the third embodiment, each first piece 41 has substantially the same shape as that of the first embodiment, and each first piece 41 has a flat collar 413 corresponding to the flat collar 41B of the first embodiment. , A fixing hole 42 is formed in the flat collar 413. Further, in the third embodiment, each first piece 41 has a position matching portion 411 used for positioning with the other first piece 41.
　各第１片４１の両端部の矩形の扁平鍔４１３に、位置整合部４１１が設けられている。これに限定されるものではなく、位置整合部４１１が何れか一方の扁平鍔４１３にのみ形成されても良く、扁平鍔４１３以外の部分に設けられても良い。位置整合部４１１は、例えば順送金型でのエンボス加工によって形成される。例えば、位置整合部４１１は扁平鍔４１３に形成された凹部（又は凸部）である。 Position matching portions 411 are provided on rectangular flat collars 413 at both ends of each first piece 41. The position matching portion 411 is not limited to this, and may be formed only on one of the flat collars 413, or may be provided on a portion other than the flat collar 413. The position matching portion 411 is formed, for example, by embossing with a progressive remittance mold. For example, the position matching portion 411 is a concave portion (or convex portion) formed in the flat collar 413.
　これによって、各第１片４１の扁平鍔４１３の一面には、位置整合部４１１に係る凸部が形成され、前記一面と反対側の他面には位置整合部４１１に係る凹部が形成される。従って、一の第１片４１の位置整合部４１１の凹部は、他の第１片４１の位置整合部４１１の凸部に係合し、一の第１片４１の位置整合部４１１の凸部は、他の第１片４１の位置整合部４１１の凹部に係合する。よって、第１片４１同士の位置ずれが防止でき、重畳方向において全ての第１片４１の位置を合わせることができる。 As a result, a convex portion related to the position matching portion 411 is formed on one surface of the flat collar 413 of each first piece 41, and a concave portion related to the position matching portion 411 is formed on the other surface on the opposite side to the one surface. .. Therefore, the concave portion of the position matching portion 411 of the first piece 41 engages with the convex portion of the position matching portion 411 of the other first piece 41, and the convex portion of the position matching portion 411 of the first piece 41. Engages with the recess of the position matching portion 411 of the other first piece 41. Therefore, the misalignment of the first pieces 41 can be prevented, and the positions of all the first pieces 41 can be aligned in the overlapping direction.
　以上のように、実施形態３に係る電気接続箱１００のバスバー４０Ｂにおいては、第１片４１同士が位置整合部４１１によって位置が合わされている。従って、バスバー４０Ｂの取扱性が向上し、電気接続箱１００の組み込みにおいて作業性が高まる。 As described above, in the bus bar 40B of the electrical connection box 100 according to the third embodiment, the first pieces 41 are aligned with each other by the position matching portion 411. Therefore, the handleability of the bus bar 40B is improved, and the workability is improved when the electric junction box 100 is incorporated.
　実施形態１又は２と同様の部分については、同一の符号を付して詳細な説明を省略する。 The same parts as those in the first or second embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
（実施形態４）
　図１３は、実施形態４に係る電気接続箱１００のバスバー４０Ｃを示す斜視図である。実施形態４に係る電気接続箱１００において、バスバー４０Ｃは複数（例えば、３枚）の第１片４１と、第１片４１と類似形状を有する後述の第３片４４とを有する。３枚の第１片４１と１枚の第３片４４とは夫々の厚み方向にて整合するように重畳している。バスバー４０Ｃが台座５１３に固定される際、第３片４４は台座５１３と当接する。即ち、３枚の第１片４１は第３片４４を介して台座５１３に固定される。 (Embodiment 4)
FIG. 13 is a perspective view showing the bus bar 40C of the electrical connection box 100 according to the fourth embodiment. In the electrical connection box 100 according to the fourth embodiment, the bus bar 40C has a plurality of (for example, three) first pieces 41 and a third piece 44, which will be described later and has a shape similar to that of the first piece 41. The three first pieces 41 and the one third piece 44 are overlapped so as to be aligned in each thickness direction. When the bus bar 40C is fixed to the pedestal 513, the third piece 44 comes into contact with the pedestal 513. That is, the three first pieces 41 are fixed to the pedestal 513 via the third piece 44.
　図１４は、実施形態４に係る電気接続箱１００のバスバー４０Ｃの第３片４４を示す斜視図である。また、図１４では、説明の便宜上、複数の第１片４１を仮想線にて部分的に示している。なお、図１４は、複数の第１片４１及び第３片４４が、後述する一体化はされていない状態を示している。 FIG. 14 is a perspective view showing a third piece 44 of the bus bar 40C of the electrical connection box 100 according to the fourth embodiment. Further, in FIG. 14, for convenience of explanation, a plurality of first pieces 41 are partially shown by virtual lines. Note that FIG. 14 shows a state in which the plurality of first piece 41 and the third piece 44 are not integrated, which will be described later.
　第１片４１及び第３片４４は何れも厚みが例えば０．８ｍｍである。第１片４１は実施形態１と略同様の形状を有している。
　第３片４４は、第１片４１と同じ形状を有して３枚の第１片４１と重畳される重畳部４４１、及び、該重畳部４４１の少なくとも一端側の縁に設けられた一体化係合部４４３を有する。一体化係合部４４３は、第３片４４及び複数の第１片４１を一体化させる。 Both the first piece 41 and the third piece 44 have a thickness of, for example, 0.8 mm. The first piece 41 has substantially the same shape as that of the first embodiment.
The third piece 44 has the same shape as the first piece 41 and is superposed on the three first pieces 41. The superimposing portion 441 and the integration provided on the edge on at least one end side of the superimposing portion 441. It has an engaging portion 443. The integrated engaging portion 443 integrates the third piece 44 and the plurality of first pieces 41.
　重畳部４４１は第１片４１と略同じ形状であり、両端部には、実施形態３の第１片４１の扁平鍔４１３に相当する扁平鍔４４４を有する。各扁平鍔４４４には第３片４４（バスバー４０Ｃ）をアッパーケース５１の台座５１３に固定するための固定孔４４２が形成されている。第１片４１の固定孔４２及び第３片４４の固定孔４４２は、第１片４１及び第３片４４が重畳する際、斯かる重畳方向においてその位置が整合するように設けられている。 The superimposing portion 441 has substantially the same shape as the first piece 41, and has flat collars 444 corresponding to the flat collars 413 of the first piece 41 of the third embodiment at both ends. Each flat collar 444 is formed with a fixing hole 442 for fixing the third piece 44 (bus bar 40C) to the pedestal 513 of the upper case 51. The fixing holes 42 of the first piece 41 and the fixing holes 442 of the third piece 44 are provided so that the positions of the fixing holes 42 of the first piece 41 and the fixing holes 442 of the third piece 44 are aligned in the overlapping direction when the first piece 41 and the third piece 44 are superposed.
　また、重畳部４４１の両端の縁には一体化係合部４４３が設けられている。一体化係合部４４３は屈曲した矩形板状をなしている。一体化係合部４４３は、固定孔４４２が形成された、重畳部４４１の矩形の扁平鍔４４４の縁から延設されている。また、一体化係合部４４３は、その端部が扁平鍔４４４の厚み方向に屈曲しており、全体として断面視Ｌ字状をなしている。即ち、一体化係合部４４３は、扁平鍔４４４の面に沿う方向に延びる係合部４４３Ａと、係合部４４３Ａの先端にて扁平鍔４４４の厚み方向に屈曲した押圧部４４３Ｂとを有する。 Further, integrated engaging portions 443 are provided on the edges of both ends of the overlapping portion 441. The integrated engaging portion 443 has a bent rectangular plate shape. The integrated engaging portion 443 extends from the edge of the rectangular flat collar 444 of the overlapping portion 441 in which the fixing hole 442 is formed. Further, the end portion of the integrated engaging portion 443 is bent in the thickness direction of the flat collar 444, and the integrated engaging portion 443 has an L-shape in cross section as a whole. That is, the integrated engaging portion 443 has an engaging portion 443A extending in the direction along the surface of the flat collar 444, and a pressing portion 443B bent in the thickness direction of the flat collar 444 at the tip of the engaging portion 443A.
　各第１片４１は、実施形態１と略同様の形状を有するが、両端部の形状において相違する。実施形態４に係る電気接続箱１００においては、各第１片４１の両端部に、第３片４４の一体化係合部４４３（係合部４４３Ａ）に対応する幅を有する係合凹部４１２が形成されている。 Each first piece 41 has substantially the same shape as that of the first embodiment, but differs in the shape of both ends. In the electrical connection box 100 according to the fourth embodiment, engaging recesses 412 having a width corresponding to the integrated engaging portion 443 (engaging portion 443A) of the third piece 44 are provided at both ends of each first piece 41. It is formed.
　各第１片４１においては、固定孔４２が形成された、矩形の扁平鍔４１３Ａには、第３片４４の一体化係合部４４３と前記重畳方向において整合する位置に、係合凹部４１２が夫々設けられている。係合凹部４１２は、扁平鍔４１３Ａの縁部を矩形状に切り欠いて形成されている。扁平鍔４１３Ａの辺に沿う方向において、係合凹部４１２の寸法は、一体化係合部４４３の係合部４４３Ａの幅寸法と略同じであり、以下に説明する一体化の際、係合部４４３Ａが各第１片４１の係合凹部４１２と係合を行う。
　また、一体化の際、前記重畳方向における、一体化係合部４４３の係合部４４３Ａの寸法は、３枚の第１片４１の厚みの和と略同じである。 In each first piece 41, the rectangular flat collar 413A in which the fixing hole 42 is formed has an engaging recess 412 at a position aligned with the integrated engaging portion 443 of the third piece 44 in the overlapping direction. Each is provided. The engaging recess 412 is formed by cutting out the edge of the flat collar 413A in a rectangular shape. In the direction along the side of the flat collar 413A, the dimension of the engaging recess 412 is substantially the same as the width dimension of the engaging portion 443A of the integrated engaging portion 443. 443A engages with the engaging recess 412 of each first piece 41.
Further, at the time of integration, the dimensions of the engaging portion 443A of the integrated engaging portion 443 in the overlapping direction are substantially the same as the sum of the thicknesses of the three first pieces 41.
　以下、３枚の第１片４１と、一枚の第３片４４との一体化について説明する。
　図１４に示すように、３枚の第１片４１及び一枚の第３片４４が整合するように重畳される。即ち、第３片４４の上に、３枚の第１片４１が重畳される。この際、図１４に示すように、一体化係合部４４３は、係合部４４３Ａが扁平鍔４４４の面に沿う方向に延びている状態である。 Hereinafter, the integration of the three first pieces 41 and the one third piece 44 will be described.
As shown in FIG. 14, the three first pieces 41 and the one third piece 44 are superimposed so as to be aligned. That is, the three first pieces 41 are superposed on the third piece 44. At this time, as shown in FIG. 14, the integrated engaging portion 443 is in a state in which the engaging portion 443A extends in the direction along the surface of the flat collar 444.
　次いで、一体化係合部４４３（係合部４４３Ａ）が第１片４１（係合凹部４１２）側に折り曲げられ（図１４の矢印方向）、係合部４４３Ａと各第１片４１の係合凹部４１２とが係合する。この際、一体化係合部４４３の押圧部４４３Ｂは、第３片４４から最も遠い第１片４１の扁平鍔４１３Ａの外側面に当接し、斯かる扁平鍔４１３Ａを第３片４４の扁平鍔４４４側に押圧する。 Next, the integrated engaging portion 443 (engaging portion 443A) is bent toward the first piece 41 (engaging recess 412) (in the direction of the arrow in FIG. 14), and the engaging portion 443A and each first piece 41 are engaged. Engage with recess 412. At this time, the pressing portion 443B of the integrated engaging portion 443 abuts on the outer surface of the flat collar 413A of the first piece 41 farthest from the third piece 44, and the flat collar 413A is brought into contact with the flat collar of the third piece 44. Press to the 444 side.
　これによって、３枚の第１片４１は、第３片４４の扁平鍔４４４及び一体化係合部４４３の押圧部４４３Ｂによって挟持される。更に、各第１片４１の係合凹部４１２に一体化係合部４４３の係合部４４３Ａが係合するので、前記重畳方向と交差する方向への第１片４１のズレが防止される。従って、３枚の第１片４１と、一枚の第３片４４とが一体化される。 As a result, the three first pieces 41 are sandwiched by the flat collar 444 of the third piece 44 and the pressing portion 443B of the integrated engaging portion 443. Further, since the engaging portion 443A of the integrated engaging portion 443 engages with the engaging recess 412 of each first piece 41, the first piece 41 is prevented from being displaced in the direction intersecting the overlapping direction. Therefore, the three first pieces 41 and the one third piece 44 are integrated.
　このように、実施形態４に係る電気接続箱１００のバスバー４０Ｃにおいては、３枚の第１片４１及び１枚の第３片４４が全体として一体化されている。従って、バスバー４０Ｃの取扱性が向上し、電気接続箱１００の組み込みにおいて作業性が高まる。 As described above, in the bus bar 40C of the electric junction box 100 according to the fourth embodiment, the three first piece 41 and the one third piece 44 are integrated as a whole. Therefore, the handleability of the bus bar 40C is improved, and the workability is improved when the electric junction box 100 is incorporated.
　更に、バスバー４０Ｃは、第１片４１及び第３片４４が順送金型のプレス加工が可能な厚みの薄板の銅材からなる。従って、各第１片４１及び第３片４４の製造の際、先メッキ処理済みの薄板の銅材を用いた順送金型加工が可能である。特に、一体化係合部４４３のような細かい部分の形成においても、別途工程を増やすことなく、順送金型加工にて一括、かつ簡単にできる。従って、加工費が低減できるうえ、歩留まりが高くなり、実施形態４に係るバスバー４０Ｃ（及び電気接続箱１００）の製造コスト削減を図ることができる。
　なお、第３片４４が薄板の銅材からなるので、上述した一体化作業の際、一体化係合部４４３の折り曲げ処理も容易にできる。 Further, the bus bar 40C is made of a thin copper material having a thickness in which the first piece 41 and the third piece 44 can be press-processed by a progressive remittance mold. Therefore, when manufacturing each of the first piece 41 and the third piece 44, it is possible to perform progressive remittance mold processing using a pre-plated thin copper material. In particular, even in the formation of a fine portion such as the integrated engaging portion 443, the progressive mold processing can be performed collectively and easily without increasing the number of separate steps. Therefore, the processing cost can be reduced, the yield can be increased, and the manufacturing cost of the bus bar 40C (and the electric junction box 100) according to the fourth embodiment can be reduced.
Since the third piece 44 is made of a thin copper material, it is possible to easily bend the integrated engaging portion 443 during the above-mentioned integration operation.
　実施形態１～３と同様の部分については、同一の符号を付して詳細な説明を省略する。 The same parts as those in the first to third embodiments are designated by the same reference numerals, and detailed description thereof will be omitted.
（実施形態５）
　図１５は、実施形態５に係る電気接続箱１００のバスバー４０Ｄを示す斜視図である。実施形態５に係る電気接続箱１００においては、バスバー４０Ｄが複数（例えば、３枚）の第１片４１と、後述の第４片４５とを有する。３枚の第１片４１と１枚の第４片４５とは夫々の厚み方向にて整合するように重畳している。バスバー４０Ｄが台座５１３に固定される際、第４片４５は台座５１３から最も遠い位置に配置される。 (Embodiment 5)
FIG. 15 is a perspective view showing the bus bar 40D of the electrical connection box 100 according to the fifth embodiment. In the electrical connection box 100 according to the fifth embodiment, the bus bar 40D has a plurality of (for example, three) first piece 41 and a fourth piece 45 described later. The three first pieces 41 and the one fourth piece 45 are overlapped so as to be aligned in the respective thickness directions. When the bus bar 40D is fixed to the pedestal 513, the fourth piece 45 is arranged at the position farthest from the pedestal 513.
　実施形態５に係る電気接続箱１００はバスバー４０Ｄから発生する熱を冷却させる冷却媒体５００を備えており、冷却媒体５００は第４片４５の保持部４５６によって保持されている。　冷却媒体５００は例えば、水、オイルなどによって充填されている。これに限定されるものではなく、冷却媒体５００の内部に水、オイル等の流路が形成されている構成であっても良く、斯かる流路が外部につながっている構成であっても良い。 The electrical junction box 100 according to the fifth embodiment includes a cooling medium 500 for cooling the heat generated from the bus bar 40D, and the cooling medium 500 is held by the holding portion 456 of the fourth piece 45. The cooling medium 500 is filled with, for example, water, oil, or the like. The present invention is not limited to this, and the cooling medium 500 may have a structure in which a flow path for water, oil, or the like is formed inside the cooling medium 500, or such a flow path may be connected to the outside. ..
　図１６は、実施形態５に係る電気接続箱１００のバスバー４０Ｄの第４片４５を示す斜視図である。また、図１６では、説明の便宜上、冷却媒体５００を外した状態を示しており、後述する係合機構が解除されている状態を示している。 FIG. 16 is a perspective view showing a fourth piece 45 of the bus bar 40D of the electrical connection box 100 according to the fifth embodiment. Further, FIG. 16 shows a state in which the cooling medium 500 is removed for convenience of explanation, and shows a state in which the engagement mechanism described later is released.
　第１片４１及び第４片４５は何れも厚みが例えば０．８ｍｍである。第１片４１は実施形態１と同様の形状を有しており、詳しい説明を省略する。
　第４片４５は、第１片４１と同じ形状を有して３枚の第１片４１と重畳される重畳部４５１、及び、該重畳部４５１の中央部の縁に設けられた、冷却媒体５００の保持部４５６を有する。 Both the first piece 41 and the fourth piece 45 have a thickness of, for example, 0.8 mm. The first piece 41 has the same shape as that of the first embodiment, and detailed description thereof will be omitted.
The fourth piece 45 has the same shape as the first piece 41 and is provided with a superimposing portion 451 that is superposed on the three first pieces 41 and a cooling medium provided at the edge of the central portion of the superimposing portion 451. It has 500 holding parts 456.
　重畳部４５１は第１片４１と同じ形状であり、両端部に第４片４５（バスバー４０Ｄ）をアッパーケース５１の台座５１３に固定するための固定孔４５２が夫々形成されている。第１片４１の固定孔４２及び第４片４５の固定孔４５２は、第１片４１及び第４片４５が重畳する際、斯かる重畳方向においてその位置が整合するように設けられている。 The superimposing portion 451 has the same shape as the first piece 41, and fixing holes 452 for fixing the fourth piece 45 (bus bar 40D) to the pedestal 513 of the upper case 51 are formed at both ends. The fixing holes 42 of the first piece 41 and the fixing holes 452 of the fourth piece 45 are provided so that the positions of the fixing holes 42 of the first piece 41 and the fixing holes 452 of the fourth piece 45 are aligned in the overlapping direction when the first piece 41 and the fourth piece 45 are overlapped with each other.
　また、重畳部４５１は中心部に矩形の平坦部４５３を有しており、平坦部４５３の一対の辺縁に保持部４５６が延設されている。保持部４５６は、平坦部４５３の一方の辺縁に設けられた第１構成部４５４と、他方の辺縁に設けられた第２構成部４５５とからなる。 Further, the overlapping portion 451 has a rectangular flat portion 453 at the center, and a holding portion 456 extends to a pair of edges of the flat portion 453. The holding portion 456 includes a first constituent portion 454 provided on one edge of the flat portion 453 and a second constituent portion 455 provided on the other edge.
　第１構成部４５４は、前記重畳方向の断面視にてＬ字状をなすように屈曲した略矩形板形状を有している。第１構成部４５４は、平坦部４５３の一方の辺縁から、平坦部４５３と交差する方向であって第１片４１から遠ざかる方向に延び、途中で平坦部４５３と平行になるように屈曲している（図１５参照）。第１構成部４５４は先端側の辺縁の中心部に、係合切り欠き４５４Ａが形成されている。係合切り欠き４５４Ａは倒立の台形である。係合切り欠き４５４Ａは、後述する第２構成部４５５の係合凸部４５５Ａと係合する。 The first component 454 has a substantially rectangular plate shape that is bent so as to form an L shape in a cross-sectional view in the overlapping direction. The first component 454 extends from one edge of the flat portion 453 in a direction intersecting the flat portion 453 and away from the first piece 41, and bends in the middle so as to be parallel to the flat portion 453. (See FIG. 15). The first component 454 has an engagement notch 454A formed at the center of the edge on the distal end side. The engagement notch 454A is an inverted trapezoid. The engaging notch 454A engages with the engaging convex portion 455A of the second component 455, which will be described later.
　第２構成部４５５は、前記重畳方向の断面視にてＬ字状をなすように屈曲した略矩形板形状を有している。第２構成部４５５は、平坦部４５３の他方の辺縁から、平坦部４５３と交差する方向であって第１片４１から遠ざかる方向に延び、途中で平坦部４５３と平行になるように屈曲している（図１５参照）。第２構成部４５５は先端側の辺縁の中心部に、第１構成部４５４の係合切り欠き４５４Ａに対応する係合凸部４５５Ａが延設されている。係合凸部４５５Ａは、係合切り欠き４５４Ａに倣う倒立の台形であり、第２構成部４５５の面に沿う方向に突出している。係合凸部４５５Ａは突出先に近い程幅寸法が大きくなる。 The second component 455 has a substantially rectangular plate shape that is bent so as to form an L shape in a cross-sectional view in the overlapping direction. The second component 455 extends from the other edge of the flat portion 453 in a direction intersecting the flat portion 453 and away from the first piece 41, and bends in the middle so as to be parallel to the flat portion 453. (See FIG. 15). The second constituent portion 455 has an engaging convex portion 455A extending at the center of the edge on the distal end side, which corresponds to the engaging notch 454A of the first constituent portion 454. The engaging convex portion 455A is an inverted trapezoid that imitates the engaging notch 454A, and projects in a direction along the surface of the second constituent portion 455. The width dimension of the engaging convex portion 455A becomes larger as it is closer to the protruding tip.
　係合切り欠き４５４Ａ及び係合凸部４５５Ａが保持部４５６の係合機構の役割をなす。即ち、第１構成部４５４の係合切り欠き４５４Ａと、第２構成部４５５の係合凸部４５５Ａとが係合することによって、冷却媒体５００を保持できる。 The engaging notch 454A and the engaging convex portion 455A serve as the engaging mechanism of the holding portion 456. That is, the cooling medium 500 can be held by engaging the engaging notch 454A of the first component 454 and the engaging convex portion 455A of the second component 455.
　以下、実施形態５に係る電気接続箱１００における冷却媒体５００の保持方法について説明する。
　バスバー４０Ｄが台座５１３に固定される際、第４片４５が台座５１３から最も遠い位置に配置されるよう、３枚の第１片４１及び第４片４５が重畳される（図１５参照）。即ち、３枚の第１片４１の上に、第４片４５が重畳される。 Hereinafter, a method of holding the cooling medium 500 in the electrical junction box 100 according to the fifth embodiment will be described.
When the bus bar 40D is fixed to the pedestal 513, the three first piece 41 and the fourth piece 45 are superposed so that the fourth piece 45 is arranged at the position farthest from the pedestal 513 (see FIG. 15). That is, the fourth piece 45 is superimposed on the three first pieces 41.
　次いで、第４片４５の平坦部４５３の外側面に冷却媒体５００が載置された後、第１構成部４５４及び第２構成部４５５が互いに近付する方向（図１６の矢印方向）に折り曲げられる。そして、係合切り欠き４５４Ａ及び係合凸部４５５Ａが係合する。これによって、冷却媒体５００は第４片４５に保持される。換言すれば、冷却媒体５００は平坦部４５３、第１構成部４５４及び第２構成部４５５に挟持される。 Next, after the cooling medium 500 is placed on the outer surface of the flat portion 453 of the fourth piece 45, the first constituent portion 454 and the second constituent portion 455 are bent in the direction in which they approach each other (the direction indicated by the arrow in FIG. 16). Be done. Then, the engaging notch 454A and the engaging convex portion 455A engage with each other. As a result, the cooling medium 500 is held by the fourth piece 45. In other words, the cooling medium 500 is sandwiched between the flat portion 453, the first constituent portion 454, and the second constituent portion 455.
　従って、バスバー４０Ｄから発生される熱は、冷却媒体５００に伝導され、冷却媒体５００によって迅速に冷却される。とりわけ、冷却媒体５００が平坦部４５３、第１構成部４５４及び第２構成部４５５によって囲まれた状態にて挟持されるので、冷却媒体５００との接触面積が広く、冷却媒体５００への熱伝導が速い。 Therefore, the heat generated from the bus bar 40D is conducted to the cooling medium 500 and is rapidly cooled by the cooling medium 500. In particular, since the cooling medium 500 is sandwiched in a state of being surrounded by the flat portion 453, the first component 454, and the second component 455, the contact area with the cooling medium 500 is wide, and heat conduction to the cooling medium 500 is wide. Is fast.
　更に、実施形態５に係る電気接続箱１００は、第１片４１及び第４片４５が順送金型のプレス加工が可能な厚みの薄板の銅材からなる。従って、各第１片４１及び第４片４５の製造の際、先メッキ処理済みの薄板の銅材を用いた順送金型加工が可能である。特に、保持部４５６のような複雑形状部の形成においても、別途工程を増やすことなく、順送金型加工にて一括、かつ簡単にできる。従って、加工費が低減できるうえ、歩留まりが高くなり、実施形態５に係るバスバー４０Ｄ（及び電気接続箱１００）の製造コスト削減を図ることができる。
　なお、第４片４５が薄板の銅材からなるので、上述した冷却媒体５００の保持する際、第１構成部４５４及び第２構成部４５５の折り曲げも容易にできる。 Further, the electrical connection box 100 according to the fifth embodiment is made of a thin copper material having a thickness in which the first piece 41 and the fourth piece 45 can be pressed by a progressive remittance mold. Therefore, when manufacturing each of the first piece 41 and the fourth piece 45, it is possible to perform progressive remittance mold processing using a pre-plated thin copper material. In particular, even in the formation of a complicated shape portion such as the holding portion 456, the progressive mold processing can be performed collectively and easily without increasing the number of separate steps. Therefore, the processing cost can be reduced, the yield can be increased, and the manufacturing cost of the bus bar 40D (and the electric junction box 100) according to the fifth embodiment can be reduced.
Since the fourth piece 45 is made of a thin copper material, the first component 454 and the second component 455 can be easily bent when holding the cooling medium 500 described above.
　以上の記載に限定されるものではなく、実施形態１～５に係るバスバー４０は、車両用の電池装置に用いても良い。 The bus bar 40 according to the first to fifth embodiments may be used as a battery device for a vehicle without being limited to the above description.
　今回開示された実施形態はすべての点で例示であって、制限的なものではないと考えられるべきである。本発明の範囲は、上記した意味ではなく、請求の範囲によって示され、請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。 The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The scope of the present invention is indicated by the scope of claims, not the above-mentioned meaning, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.
　１１　装着部
　２０　接続部
　３０　天井板
　４０，４０Ａ，４０Ｂ，４０Ｃ，４０Ｄ　バスバー
　４１　第１片　
　４１Ａ　中心部
　４１Ｂ　扁平鍔
　４２　固定孔
　４３　第２片　
　４４　第３片　
　４５　第４片　
　５０　筐体
　１００　電気接続箱
　４１１　位置整合部
　４１２　係合凹部
　４１３，４１３Ａ　　
　４３１，４４１，４５１　重畳部
　４３２　固定孔
　４３３　位置決め部
　４３３Ａ　基部
　４３３Ｂ　係合部
　４３４　扁平鍔
　４４２　固定孔
　４４３　一体化係合部
　４４４　扁平鍔
　４５２　固定孔
　４５４　第１構成部
　４５４Ａ　係合切り欠き
　４５５　第２構成部
　４５５Ａ　係合凸部
　４５６　保持部
　５１１　脚部
　５１３　台座（固定対象）　
　５００　冷却媒体
  11 Mounting part 20 Connection part 30 Ceiling board 40, 40A, 40B, 40C, 40D Bus bar 41 1st piece
41A Central part 41B Flat brim 42 Fixing hole 43 Second piece
44 Third piece
45 4th piece
50 Housing 100 Electrical junction box 411 Position matching part 412 Engagement recess 413,413A
431, 441, 451 Overlapping part 432 Fixing hole 433 Positioning part 433A Base part 433B Engaging part 434 Flat collar 442 Fixing hole 443 Integrated engaging part 444 Flat collar 452 Fixing hole 454 First component part 454A Engagement notch 455 Component 455A Engagement convex part 456 Holding part 511 Leg part 513 Pedestal (fixed target)
500 cooling medium

Claims (7)

  1. 　車両用のバスバーであって、
    　導電性板材からなる、同一形状の第１片を複数含み、
    　前記複数の第１片は重畳されているバスバー。     It ’s a bus bar for vehicles.
    Containing a plurality of first pieces of the same shape made of a conductive plate material,
    The plurality of first pieces are superposed bus bars.
  2. 　前記第１片と同じ形状を有して前記複数の第１片と重畳される重畳部、及び、該重畳部の縁に設けられ、固定対象に対する位置決めを行う位置決め部を有する第２片を備える請求項１に記載のバスバー。 It includes a superimposing portion having the same shape as the first piece and superimposing on the plurality of first pieces, and a second piece provided on the edge of the superimposing portion and having a positioning portion for positioning with respect to a fixed object. The bus bar according to claim 1.
  3. 　各第１片は、他の第１片との位置合わせに用いられる位置整合部を有する請求項１又は２に記載のバスバー。 The bus bar according to claim 1 or 2, wherein each first piece has a position matching portion used for alignment with another first piece.
  4. 　前記第１片と同じ形状を有して前記複数の第１片と重畳される重畳部を有する第３片を備え、
    　前記第３片は、該重畳部の縁に設けられ、前記第３片及び前記複数の第１片を一体化させる一体化係合部を有する請求項１に記載のバスバー。     A third piece having the same shape as the first piece and having an overlapping portion superimposed on the plurality of first pieces is provided.
    The bus bar according to claim 1, wherein the third piece is provided on the edge of the overlapping portion and has an integrated engaging portion for integrating the third piece and the plurality of first pieces.
  5. 　前記複数の第１片は、前記第３片の前記一体化係合部と係合する係合凹部を有する請求項４に記載のバスバー。 The bus bar according to claim 4, wherein the plurality of first pieces have an engaging recess that engages with the integrated engaging portion of the third piece.
  6. 　少なくとも第１片で発する熱を冷却させる冷却媒体と、
    　前記冷却媒体を保持する保持部とを備える請求項１～５の何れか一つに記載のバスバー。     A cooling medium that cools the heat generated by at least the first piece,
    The bus bar according to any one of claims 1 to 5, further comprising a holding portion for holding the cooling medium.
  7. 　請求項１から６のいずれか一つに記載のバスバーと、
    　前記バスバーに接続され、外部端子との接続を行う接続部とを備える電気接続箱。
          The bus bar according to any one of claims 1 to 6 and
    An electrical junction box provided with a connection portion connected to the bus bar and connected to an external terminal.
PCT/JP2020/048770 2020-01-10 2020-12-25 Bus bar and electrical connection box WO2021140963A1 (en)

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JP2016134275A (en) * 2015-01-19 2016-07-25 株式会社オートネットワーク技術研究所 Bus bar
JP2017112066A (en) * 2015-12-18 2017-06-22 矢崎総業株式会社 Bus bar module and battery pack
JP2018181780A (en) * 2017-04-21 2018-11-15 矢崎総業株式会社 Laminated bus bar and battery module
JP2019009090A (en) * 2017-06-28 2019-01-17 矢崎総業株式会社 Conductor with heat absorber and battery pack

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012018904A (en) * 2010-07-06 2012-01-26 Samsung Electro-Mechanics Co Ltd Energy storage module
JP2016134275A (en) * 2015-01-19 2016-07-25 株式会社オートネットワーク技術研究所 Bus bar
JP2017112066A (en) * 2015-12-18 2017-06-22 矢崎総業株式会社 Bus bar module and battery pack
JP2018181780A (en) * 2017-04-21 2018-11-15 矢崎総業株式会社 Laminated bus bar and battery module
JP2019009090A (en) * 2017-06-28 2019-01-17 矢崎総業株式会社 Conductor with heat absorber and battery pack

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