WO2021140963A1 - Barre omnibus et boîtier de connexion électrique - Google Patents

Barre omnibus et boîtier de connexion électrique Download PDF

Info

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
Authority
WO
WIPO (PCT)
Prior art keywords
piece
bus bar
pieces
engaging
junction box
Prior art date
Application number
PCT/JP2020/048770
Other languages
English (en)
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/fr

Links

Images

Classifications

    • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Or Junction Boxes (AREA)
  • Non-Insulated Conductors (AREA)

Abstract

Barre omnibus (40) pour un véhicule, qui comprend une pluralité de premières pièces (41) ayant la même forme et comprenant chacune un matériau de plaque conductrice, la pluralité de premières pièces (41) constituant une barre omnibus (40) en étant superposées de telle sorte que leurs formes extérieures sont alignées dans une vue en plan.
PCT/JP2020/048770 2020-01-10 2020-12-25 Barre omnibus et boîtier de connexion électrique WO2021140963A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020002965A JP2021111524A (ja) 2020-01-10 2020-01-10 バスバー及び電気接続箱
JP2020-002965 2020-01-10

Publications (1)

Publication Number Publication Date
WO2021140963A1 true WO2021140963A1 (fr) 2021-07-15

Family

ID=76787493

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/048770 WO2021140963A1 (fr) 2020-01-10 2020-12-25 Barre omnibus et boîtier de connexion électrique

Country Status (2)

Country Link
JP (1) JP2021111524A (fr)
WO (1) WO2021140963A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7288631B1 (ja) 2022-10-21 2023-06-08 株式会社田中製作所 曲げ加工装置及び曲げ加工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012018904A (ja) * 2010-07-06 2012-01-26 Samsung Electro-Mechanics Co Ltd エネルギー貯蔵モジュール
JP2016134275A (ja) * 2015-01-19 2016-07-25 株式会社オートネットワーク技術研究所 バスバー
JP2017112066A (ja) * 2015-12-18 2017-06-22 矢崎総業株式会社 バスバーモジュール及び電池パック
JP2018181780A (ja) * 2017-04-21 2018-11-15 矢崎総業株式会社 積層バスバおよび電池モジュール
JP2019009090A (ja) * 2017-06-28 2019-01-17 矢崎総業株式会社 吸熱体付き導体及び電池パック

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012018904A (ja) * 2010-07-06 2012-01-26 Samsung Electro-Mechanics Co Ltd エネルギー貯蔵モジュール
JP2016134275A (ja) * 2015-01-19 2016-07-25 株式会社オートネットワーク技術研究所 バスバー
JP2017112066A (ja) * 2015-12-18 2017-06-22 矢崎総業株式会社 バスバーモジュール及び電池パック
JP2018181780A (ja) * 2017-04-21 2018-11-15 矢崎総業株式会社 積層バスバおよび電池モジュール
JP2019009090A (ja) * 2017-06-28 2019-01-17 矢崎総業株式会社 吸熱体付き導体及び電池パック

Also Published As

Publication number Publication date
JP2021111524A (ja) 2021-08-02

Similar Documents

Publication Publication Date Title
US10842015B2 (en) Conductive member, circuit assembly, and method for manufacturing conductive member
WO2021140963A1 (fr) Barre omnibus et boîtier de connexion électrique
JP6124953B2 (ja) 二厚ダブルエンド雄型ブレード端子及びその製造方法
JP5638775B2 (ja) バスバー構造、バスバーと電源端子との接続固定構造、及び電気接続箱
JP5282897B2 (ja) ヒューズ
JP4723907B2 (ja) 電気接続箱
JP2006325352A (ja) 電気接続箱
JP6959041B2 (ja) 電気接続箱及びその据付構造
JP6125334B2 (ja) 電気接続箱
US20210287843A1 (en) Coil assembly, circuit assembly, and electrical junction box
JP2003346939A (ja) ソケット装置及び該ソケット装置のリード線接続方法
JP2011172394A (ja) バスバー付きプリント基板
JP2009171762A (ja) バスバ
JP5568974B2 (ja) 回路構成体
JP7314478B2 (ja) 電気配線板を備えた装置
JP2011125205A (ja) ヒューズ端子金具およびこれを含んだヒューズ回路構成ユニット
JP3562431B2 (ja) 大型バスバーの製造方法
JP2007215374A (ja) 自動車用ジャンクションボックス
JP6025060B2 (ja) 高圧用電気接続箱
JP2012134086A (ja) 電気接続箱
JP5835672B2 (ja) バスバーを備えた電気接続箱
JP2011181468A (ja) バスバー付基板用端子
JP2019004067A (ja) 回路ユニット
JP2011254647A (ja) 電気接続箱
JP2009136041A (ja) 回路保護材および回路保護材の接続構造

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20911523

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20911523

Country of ref document: EP

Kind code of ref document: A1