WO2019239899A1 - Composant d'insertion de barre omnibus - Google Patents

Composant d'insertion de barre omnibus Download PDF

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Publication number
WO2019239899A1
WO2019239899A1 PCT/JP2019/021369 JP2019021369W WO2019239899A1 WO 2019239899 A1 WO2019239899 A1 WO 2019239899A1 JP 2019021369 W JP2019021369 W JP 2019021369W WO 2019239899 A1 WO2019239899 A1 WO 2019239899A1
Authority
WO
WIPO (PCT)
Prior art keywords
bus bar
main body
embedded
recesses
embedded portion
Prior art date
Application number
PCT/JP2019/021369
Other languages
English (en)
Japanese (ja)
Inventor
青山　直樹
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 WO2019239899A1 publication Critical patent/WO2019239899A1/fr

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Classifications

    • 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
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24—Assembling by moulding on contact members
    • 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 insert part in which a bus bar used as a wiring member for an automobile is integrally formed with a synthetic resin main body by insert molding.
  • a bus bar formed by stamping a metal flat plate has been widely used as a wiring member for automobiles, and has been integrated with a synthetic resin main body by insert molding for the purpose of improving handleability. It is offered as a bus bar insert part.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2017-117643 (Patent Document 1) describes a terminal block in which six bus bars and a current sensor core (magnetic core) are integrated with a synthetic resin main body by insert molding. Yes. By connecting the connecting portion of the bus bar protruding from the main body to other members such as a motor and an inverter, it is used for measuring the current flowing through the motor in a hybrid vehicle or an electric vehicle.
  • an object of the present invention is to provide a bus bar insert part having a novel structure that can be miniaturized by improving the heat dissipation of the bus bar.
  • the bus bar insert component of the present disclosure has a synthetic resin main body, an embedded portion embedded in the main body, and a connection portion protruding outside the main body, and the embedded portion is embedded in the main body
  • the bus bar insert part is provided with a bus bar formed integrally with the main body, and a large number of recesses are formed on the surface of the embedded part.
  • the heat dissipation of the bus bar can be improved, and the bus bar insert component can be reduced in size and size.
  • FIG. 1 is a front view showing a bus bar insert component according to the first embodiment.
  • FIG. 2 is a plan view of FIG. 3 is a cross-sectional view taken along the line III-III in FIG.
  • FIG. 4 is a plan view showing a bus bar insert part according to the second embodiment.
  • 5 is a cross-sectional view taken along the line VV in FIG.
  • FIG. 6 is a plan view showing a bus bar insert part according to the third embodiment.
  • FIG. 7 is a plan view showing a bus bar insert part according to the fourth embodiment.
  • the bus bar insert part of the present disclosure is (1) It has a synthetic resin main body, an embedded portion embedded in the main body, and a connecting portion protruding to the outside of the main body, and is integrated with the main body in a state where the embedded portion is embedded in the main body.
  • the bus bar insert component includes a molded bus bar and a plurality of recesses formed on the surface of the embedded portion.
  • the bus bar insert part of the present disclosure a large number of recesses are formed on the surface of the embedded portion of the bus bar embedded in the main body.
  • the contact area between the embedded portion of the bus bar embedded in the main body and the synthetic resin main body can be increased, and the heat generated in the embedded portion of the bus bar can be efficiently radiated to the outside through the main body. can do. Therefore, the heat dissipation of the entire bus bar can be improved, and the thickness of the bus bar can be reduced accordingly, so that the bus bar insert part can be reduced in size and size.
  • the synthetic resin enters the numerous recesses of the embedded portion of the bus bar, the engagement between the bus bar and the main body is strengthened, so that the bus bar is firmly positioned and fixed with respect to the resin main body.
  • the surface of the bus bar includes the upper surface and the lower surface when the bus bar has a flat plate shape.
  • a recessed part can be formed using arbitrary well-known techniques, such as a dimple process, a groove process, shot blasting, and sandblasting, for example.
  • a large number of recesses are formed by dimple processing. Therefore, it is possible to form a large number of recesses on the surface of the bus bar while ensuring sufficient strength of the bus bar.
  • the diameter dimension of the recess formed by dimple processing is preferably 2 mm or more and 6 mm or less. Further, the maximum depth dimension of the recess is preferably 0.1 mm or more and 0.5 mm or less.
  • the many concave portions are formed in a portion that is not bent in the embedded portion of the bus bar.
  • a large number of recesses are formed in the unbent part of the buried part of the bus bar. That is, forming a recess in the bent portion of the bus bar greatly affects the strength of the bus bar. Therefore, the recess is formed in an unbent portion excluding the bent portion. Accordingly, a large number of recesses can be formed on the surface of the embedded portion of the bus bar while further ensuring the strength of the bus bar, and the heat dissipation of the bus bar can be stably improved.
  • FIGS. 1 to 3 show a bus bar insert component 10 as Embodiment 1 of the present disclosure.
  • the bus bar insert component 10 includes a main body 12 made of synthetic resin and three bus bars 14.
  • the three bus bars 14 are spaced apart from each other at a predetermined interval in the longitudinal direction and the plate thickness direction, and the bus bar 14 is integrally formed with the main body 12 by insert molding in a state where the embedded portion 16 is embedded in the main body 12.
  • the main body 12 is indicated by virtual lines in FIGS.
  • “upper” means the upper part in FIGS. 1 and 3
  • “lower” means the lower part in FIGS. 1 and 3
  • “longitudinal direction” means those in FIGS.
  • the left-right direction and the width direction are the vertical direction in FIG. 2, and the plate thickness direction is the vertical direction in FIGS.
  • Each of the three bus bars 14 is formed, for example, by stamping and bending a metal flat plate having a surface plated with tin or the like such as a copper plate, and is specifically bent into a crank shape when viewed from the front. Is formed. A portion of each bus bar 14 bent in a crank shape is embedded in the main body 12 to form an embedded portion 16, and protrudes from the main body 12 of each bus bar 14 to the outside (in the left-right direction in FIGS. 1 to 3).
  • part is comprised.
  • each bus bar 14 there are a large number of upper surfaces 20 and lower surfaces 22 constituting the surface of the embedded portion 16 of each bus bar 14 (in this embodiment, 39 each for the upper surface 20 and the lower surface 22).
  • a concave portion 24 that is recessed in a circular mortar shape in plan view is formed.
  • Each of the recesses 24 is formed in a portion 26 that is not bent in the embedded portion 16 of the bus bar 14, and is aligned and arranged with a certain interval with respect to the extending direction and the width direction of the bus bar 14.
  • the formation of the recess 24 in the bent portion 28 of the bus bar 14 is considered to greatly affect the strength of the bus bar 14. Therefore, the recess 24 is formed in the unbent portion 26 excluding the bent portion 28.
  • the recess 24 is formed by dimple processing.
  • the dimple processing hardly causes the bus bar 14 to be thinned or damaged. Therefore, it is possible to form a large number of recesses 24 on the upper surface 20 and the lower surface 22 of the bus bar 14 while ensuring sufficient strength of the bus bar 14.
  • the diameter dimension d of the recess 24 formed by dimple processing is preferably 2 mm or more and 6 mm or less. If it is less than 2 mm, a sufficient increase in the contact area between the main body 12 and the bus bar 14 may be limited, and if it exceeds 6 mm, it may be difficult to ensure the strength of the bus bar 14. In the present embodiment, the diameter dimension d of the recess 24 is about 4 mm.
  • the maximum depth dimension h of the recess 24 is preferably 0.1 mm or more and 0.5 mm or less. If it is less than 0.1 mm, the sufficient increase in the contact area between the main body 12 and the bus bar 14 may be limited, and if it exceeds 0.5 mm, it may be difficult to ensure the strength of the bus bar 14. In the present embodiment, the maximum depth dimension h of the recess 24 is about 0.3 mm.
  • the main body 12 has a substantially crank-shaped block shape when viewed from the front.
  • PI polyimide resin
  • PTFE polytetrafluoroethylene
  • ABS resin ABS resin
  • the bus bar insert component 10 has a large number of recesses 24 formed on the upper surface 20 and the lower surface 22 constituting the surface of the embedded portion 16 of the bus bar 14 embedded in the main body 12. Thereby, the contact area between the embedded portion 16 of the bus bar 14 and the main body 12 can be increased, and the heat generated in the embedded portion 16 of the bus bar 14 can be efficiently radiated to the outside through the main body 12. Therefore, the heat dissipation of the entire bus bar 14 can be improved, and the thickness of the bus bar 14 can be reduced accordingly. Therefore, the bus bar insert part 10 can be reduced in size and size.
  • the bus bar insert component 10 is connected to a portion where a large current flows at a high voltage at which the amount of heat generated by the bus bar 14 increases, such as a motor and an inverter in a hybrid vehicle or an electric vehicle. It is also possible to use it for the parts to be connected. Furthermore, since the synthetic resin constituting the main body 12 enters the numerous recesses 24 in the embedded portion 16 of the bus bar 14, the engagement between the bus bar 14 and the main body 12 is strengthened, and the bus bar 14 is firmly attached to the main body 12. Positioning is fixed.
  • the bus bar insert part 30 will be described in detail with reference to FIGS.
  • symbol same as the said Embodiment 1 is attached
  • the concave portion 32 is constituted by a concave groove extending in a substantially U shape or a substantially V shape over the entire length in the width direction on the upper surface 20 and the lower surface 22 constituting the surface of the embedded portion 16 of the bus bar 14. This is different from the first embodiment.
  • all of the recesses 32 are formed in the unbent portion 26 in the embedded portion 16 of the bus bar 14 to ensure the strength of the bus bar 14 and have a constant interval with respect to the extending direction of the bus bar 14. They are aligned and spaced apart. Further, as shown in FIG. 5, by forming the recesses 32 on the upper surface 20 and the lower surface 22 so as to be shifted with respect to the extending direction of the bus bar 14, a portion having a small plate thickness is formed on the bus bar 14. The risk of affecting the strength is advantageously eliminated or reduced. In addition, the recess 32 can be easily formed by pressing.
  • the contact area between the embedded portion 16 of the bus bar 14 and the main body 12 can be increased as in the first embodiment. Therefore, the heat dissipation of the entire bus bar 14 can be improved, the thickness of the bus bar 14 can be reduced correspondingly, and the bus bar insert component 30 can be reduced in size and size. Further, since the synthetic resin constituting the main body 12 enters the numerous recesses 32 in the embedded portion 16 of the bus bar 14, the engagement between the bus bar 14 and the main body 12 is strengthened, and the bus bar 14 is firmly attached to the main body 12. Positioning is fixed.
  • the bus bar 14 is formed by press punching and bending a metal flat plate.
  • the bus bar 14 may be formed by cutting and bending a wire rod as in the bus bar insert part 34 as the third embodiment shown in FIG. 6 and the bus bar insert part 36 as the fourth embodiment shown in FIG.
  • the wire is a wire made of a copper alloy or the like and extending with a certain substantially square or circular cross-sectional shape.
  • the upper surface 20 and the lower surface 22 are formed by shifting the recess 24 with respect to the extending direction of the bus bar 14.
  • the recess 24 may be formed so as to be shifted with respect to the width direction of the bus bar 14.
  • the recesses 24 and 32 are not formed in the connection portion 18 of the bus bar 14, but may be formed. Thereby, the surface area of the connection part 18 of the bus-bar 14 can be increased. Therefore, the heat generated in the bus bar 14 can be radiated advantageously from the surface of the connecting portion 18 to the outside.
  • the recesses 24 and 32 are not limited to those described in the first to fourth embodiments, and may have any shape such as a polygonal shape, a star shape, a spiral shape, or a cross shape in plan view.
  • the recesses 24 and 32 are formed by dimple processing or press processing. However, depending on required heat dissipation characteristics, the recesses 24 and 32 may be formed by using blast processing such as shot blasting or sand blasting. Also good. Also in this case, the surface area of the connecting portion 18 of the bus bar 14 can be increased, and the heat generated in the bus bar 14 can be advantageously radiated from the surface of the connecting portion 18 to the outside. Any known technique can be used for the recess as long as it increases the surface area of the bus bar 14.
  • Bus bar insert parts 12: Main body, 14: Bus bar, 16: Buried portion, 18: Connection portion, 20: Upper surface (front surface), 22: Lower surface (front surface), 24, 32: Recessed portion, 26: Unbent part

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Or Junction Boxes (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

L'invention concerne un composant d'insertion de barre omnibus comprenant : un corps 12 qui est constitué d'une résine synthétique ; et une barre omnibus 14 qui a une section incorporée 16 incorporée dans le corps 12 et une section de connecteur 18 faisant saillie vers l'extérieur à partir du corps 12, et qui est moulée d'un seul tenant avec le corps 12 avec la section incorporée 16 incorporée dans le corps 12, de multiples sections renfoncées 24 étant formées sur des surfaces 20, 22 de la section incorporée 16.
PCT/JP2019/021369 2018-06-12 2019-05-29 Composant d'insertion de barre omnibus WO2019239899A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018111765A JP2019215997A (ja) 2018-06-12 2018-06-12 バスバーインサート部品
JP2018-111765 2018-06-12

Publications (1)

Publication Number Publication Date
WO2019239899A1 true WO2019239899A1 (fr) 2019-12-19

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PCT/JP2019/021369 WO2019239899A1 (fr) 2018-06-12 2019-05-29 Composant d'insertion de barre omnibus

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JP (1) JP2019215997A (fr)
WO (1) WO2019239899A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121514U (fr) * 1986-01-24 1987-08-01
JPH10135582A (ja) * 1996-10-31 1998-05-22 Harness Sogo Gijutsu Kenkyusho:Kk 電子回路ユニット
JPH10290085A (ja) * 1997-04-15 1998-10-27 Nemic Lambda Kk 放熱型バスバー
JP2017069138A (ja) * 2015-10-01 2017-04-06 三菱電機株式会社 コネクタ、送受信モジュールおよび送受信モジュールの製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121514U (fr) * 1986-01-24 1987-08-01
JPH10135582A (ja) * 1996-10-31 1998-05-22 Harness Sogo Gijutsu Kenkyusho:Kk 電子回路ユニット
JPH10290085A (ja) * 1997-04-15 1998-10-27 Nemic Lambda Kk 放熱型バスバー
JP2017069138A (ja) * 2015-10-01 2017-04-06 三菱電機株式会社 コネクタ、送受信モジュールおよび送受信モジュールの製造方法

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