WO2016042855A1 - Harness attachment structure and battery pack - Google Patents

Harness attachment structure and battery pack Download PDF

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Publication number
WO2016042855A1
WO2016042855A1 PCT/JP2015/066476 JP2015066476W WO2016042855A1 WO 2016042855 A1 WO2016042855 A1 WO 2016042855A1 JP 2015066476 W JP2015066476 W JP 2015066476W WO 2016042855 A1 WO2016042855 A1 WO 2016042855A1
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WO
WIPO (PCT)
Prior art keywords
harness
terminal
bus bar
terminal block
mounting structure
Prior art date
Application number
PCT/JP2015/066476
Other languages
French (fr)
Japanese (ja)
Inventor
英史 大石
文彦 石黒
加藤　崇行
Original Assignee
株式会社豊田自動織機
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Application filed by 株式会社豊田自動織機 filed Critical 株式会社豊田自動織機
Publication of WO2016042855A1 publication Critical patent/WO2016042855A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a harness mounting structure and a battery pack.
  • Patent Document 1 Conventionally, as a battery pack, for example, there is one described in Patent Document 1.
  • a battery pack of Patent Document 1 a plurality of battery modules are accommodated in a housing. Each battery module is configured by arranging a plurality of battery cells.
  • the harness may be electrically connected by attaching the harness to the terminal block.
  • the harness for example, as a conventional mounting structure, a plurality of terminal blocks with bolts protruding from the top surface, and a bus bar arranged across the plurality of terminal blocks and fastened with nuts to the bolts of each terminal block, There is.
  • the harness and the bus bar are electrically connected by attaching the terminal portion of the harness so as to be sandwiched between the bus bar and the nut.
  • the fastening with the nut is loosened, the terminal portion of the harness and the bus bar are separated, and the electrical connection of the harness may be poor.
  • An aspect of the present invention has been made in view of the above circumstances, and an object thereof is to provide a harness mounting structure and a battery pack that can suppress the occurrence of connection failure of a harness.
  • a harness mounting structure includes a plurality of terminal blocks, a bus bar disposed across the plurality of terminal blocks, and a plurality of terminal blocks that are fastened to each other and sandwich the bus bar between the terminal blocks.
  • a clearance elimination unit that eliminates a gap between the terminal block and the bus bar at the non-clamping portion that is generated by the terminal portion of the harness that is clamped by the clamping portion.
  • this mounting structure Even if the fastening by the fastening member is loosened at the clamping part, the fixing of the bus bar at the non-clamping part is maintained, so the terminal part of the harness is between the terminal block and the bus bar due to the rigidity of the bus bar. Can be maintained. Therefore, even if the fastening by the fastening member is loosened at the clamping part, it is possible to suppress the occurrence of poor connection of the harness.
  • this mounting structure has a clearance elimination part that eliminates a clearance between the terminal block and the bus bar at the non-clamping part that is generated by the terminal part of the harness that is clamped by the clamping part. By this clearance elimination part, the mounting posture of the bus bar with respect to a plurality of terminal blocks can be stabilized, and good contact between the bus bar and the terminal part of the harness can be realized.
  • the clearance elimination part may be comprised by arrange
  • the gap elimination part may be configured by increasing the height of the terminal block in the non-clamping part by an amount corresponding to the thickness of the terminal part of the harness relative to the height of the terminal block in the clamping part.
  • the clearance elimination portion can be formed with a simple configuration that increases the height of the terminal block, and an increase in the number of components can be avoided, so that the cost can be reduced.
  • the gap clearance portion may be configured by increasing the thickness of the bus bar in the non-clamping portion by an amount corresponding to the thickness of the harness terminal portion.
  • the clearance elimination portion can be formed with a simple configuration that increases the thickness of the bus bar, and an increase in the number of components can be avoided, so that the cost can be reduced.
  • the clearance elimination part may be constituted by providing a step corresponding to the thickness of the terminal part of the harness on the bus bar between the clamping part and the non-clamping part. According to this mounting structure, the clearance elimination part can be formed with a simple configuration in which a step is provided on the bus bar, and an increase in the number of parts can be avoided, so that the cost can be reduced.
  • the battery pack according to one aspect of the present invention includes a battery module in which a plurality of battery cells are arranged and the harness mounting structure described above housed in a housing.
  • this battery pack has a clearance elimination unit that eliminates the clearance between the terminal block and the bus bar at the non-clamping portion that is generated by the terminal portion of the harness that is clamped by the clamping portion.
  • FIG. 1 is a perspective view showing the battery pack according to the first embodiment.
  • the battery pack 10 according to the present embodiment includes a housing 11 and a plurality of battery modules M1 to M4 accommodated in the housing 11.
  • the housing 11 is formed in, for example, a rectangular box shape, and includes a main body 16, a top plate 17, and a lid member 18.
  • the main body 16 includes a rectangular plate-like bottom plate 12 and rectangular plate-like side walls 13 to 15 erected on three sides of the bottom plate 12. An opening surrounded by the side walls 13 to 15 in the main body 16 is closed by a top plate 17. An opening surrounded by the bottom plate 12, the top plate 17, and the side walls 13 to 15 in the main body 16 is closed by a lid member 18.
  • casing 11 is sealed so that the gas in the said housing
  • the side wall 15 may be provided with a pressure release valve (not shown) that breaks when the internal pressure of the housing 11 rises and releases the pressure inside the housing 11.
  • the battery modules M1 to M4 are fixed to the side wall 14.
  • the battery modules M1 to M4 are arranged in two stages in the vertical direction and arranged side by side in the horizontal direction.
  • the battery cell 22 is a nonaqueous electrolyte secondary battery such as a lithium ion secondary battery.
  • Each battery cell 22 has a positive electrode terminal and a negative electrode terminal.
  • the plurality of battery cells 22 are arranged so that terminals having different polarities are adjacent to each other.
  • the plurality of battery cells 22 are electrically connected in series by a bus bar 28.
  • End plates 30 are provided at both ends in the arrangement direction of the battery cells 22.
  • a bracket 31 is attached to the end plate 30. The bracket 31 is fixed to the side wall 14, whereby the battery modules M1 to M4 are fixed to the side wall 14.
  • a harness mounting structure 40 is provided in the casing 11 between the battery modules M1 to M4 and the top plate 17.
  • the harness 60 is electrically connected to the terminal block 41 by attaching the harness 60 to the terminal block 41.
  • the harness 60 is, for example, a power supply line for supplying electric power to the electronic component 70.
  • the electronic component 70 is, for example, an ECU (Electronic Control Unit) that performs detection and control of the state of charge of the battery modules M1 to M4.
  • FIG. 2 is a cross-sectional view showing the harness mounting structure according to the first embodiment.
  • the harness attachment structure 40 includes a bracket 50, a plurality of terminal blocks 41 fixed to the bracket 50, a bus bar 45 disposed across the plurality of terminal blocks 41, and a plurality of terminal blocks 41. And a plurality of fastening members 49 that are fastened to each of the terminal blocks 41 and sandwich the bus bar 45 with the terminal blocks 41.
  • the fastening member 49 is, for example, a nut.
  • the bracket 50 is formed, for example, by bending a copper plate. As shown in FIG. 1, the bracket 50 includes a first portion 50a and a second portion 50b extending from the upper end of the first portion 50a so as to be bent substantially perpendicularly to the first portion 50a. Thus, it has a substantially inverted L shape.
  • the bracket 50 is fixed to the side wall 14 by being fixed by bolts 51 in a state where the first portion 50 a is along the side wall 14.
  • the bracket 50 is fixed to the side wall 14 so that the second portion 50 b protrudes inward from the side wall 14 and extends in parallel with the bottom plate 12 and the top plate 17.
  • On the second portion 50b a plurality of terminal blocks 41 are arranged at predetermined intervals.
  • the terminal block 41 is formed of resin, for example, and has a cylindrical shape. On the top surface 42 of the terminal block 41, a bolt 43 to which the fastening member 49 is fastened is projected. The terminal block 41 is fixed to the second portion 50 b at the base end, and is fixed to the side wall 14 via the bracket 50. Although only two terminal blocks 41 are shown in FIGS. 1 and 2, other terminal blocks 41 (not shown) may be further arranged so as to be continuous with these terminal blocks 41.
  • the bus bar 45 is formed of, for example, copper and has a rectangular plate shape. As shown in FIG. 2, a plurality of holes 48 are formed in the bus bar 45 at predetermined intervals. The bus bar 45 is disposed across the plurality of terminal blocks 41 in a state where the positions of the holes 48 and the bolts 43 of the terminal blocks 41 are aligned and the bolts 43 are passed through the holes 48. The bus bar 45 is fastened to each terminal block 41 by fastening a fastening member 49 to the bolt 43 protruding from the hole 48.
  • the harness mounting structure 40 includes a pinching portion 80 in which the terminal portion 61 of the harness 60 is pinched between the terminal block 41 and the bus bar 45, and a non-pinching portion in which the terminal portion 61 is not pinched between the terminal block 41 and the bus bar 45. 85.
  • the terminal portion 61 is, for example, a round terminal having a hole 63 and is crimped to the tip of the harness 60.
  • the terminal part 61 is clamped between the terminal block 41 and the bus bar 45.
  • the terminal portion 61 is disposed between the terminal block 41 and the bus bar 45 with the bolt 43 passing through the hole 63, and is sandwiched between the terminal block 41 and the bus bar 45 by the fastening member 49. Thereby, the terminal part 61 and the bus bar 45 are electrically connected.
  • the terminal portion 61 is disposed between the terminal block 41 and the bus bar 45 in the clamping portion 80, and thus corresponds to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45.
  • a gap is generated. If the bus bar 45 is attached to the terminal block 41 with such a gap present, the mounting posture of the bus bar 45 with respect to the top surface 42 of the terminal block 41 becomes unstable in the clamping part 80 and the non-clamping part 85, and the fastening of the bus bar 45 It is possible that defects will occur. Therefore, in the harness mounting structure 40, the spacer 90 is used as the gap eliminating portion 95 for eliminating the gap.
  • the spacer 90 is made of, for example, resin.
  • the spacer 90 is formed in, for example, an annular shape having a hole 91 and has a thickness corresponding to the thickness of the terminal portion 61.
  • the spacer 90 is disposed between the terminal block 41 and the bus bar 45 with the bolt 43 passing through the hole 91, and is sandwiched between the terminal block 41 and the bus bar 45 by the fastening member 49.
  • the spacer 90 eliminates the gap corresponding to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45, and the bus bar 45 extends along the top surface 42 of the terminal block 41 in the sandwiching portion 80 and the non-pinch portion 85.
  • the mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized.
  • the harness mounting structure 40 described above even if the fastening by the fastening member 49 is loosened at the clamping part 80, the fixing of the bus bar 45 at the non-clamping part 85 is maintained.
  • the terminal portion 61 of the harness 60 can be maintained between the bus bar 45 and the bus bar 45. Therefore, even if the fastening by the fastening member 49 is loosened at the sandwiching portion 80, it is possible to suppress the occurrence of poor connection of the harness 60.
  • the harness mounting structure 40 includes a clearance elimination unit 95 that eliminates the clearance between the terminal block 41 and the bus bar 45 in the non-clamping portion 85 caused by the terminal portion 61 of the harness 60 that is clamped by the clamping portion 80. ing. Due to the clearance eliminating portion 95, the bus bar 45 extends along the top surface 42 of the terminal block 41 at the sandwiching portion 80 and the non-pinch portion 85, so that the mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized. Thereby, it is possible to satisfactorily fasten the bus bar 45 to the terminal block 41, and it is possible to realize a good contact between the bus bar 45 and the terminal portion 61 of the harness 60.
  • the clearance elimination part 95 can be formed by the simple structure which provides the spacer 90 between the terminal block 41 and the bus-bar 45, and it becomes possible to reduce cost.
  • FIG. 3 is a cross-sectional view showing a harness mounting structure according to the second embodiment.
  • the harness mounting structure 40A of the second embodiment is different from the harness mounting structure 40 of the first embodiment described above in the configuration of the clearance elimination unit 95.
  • the clearance eliminating portion 95 increases the height of the terminal block 41 in the non-clamping portion 85 by an amount corresponding to the thickness of the terminal portion 61 with respect to the height of the terminal block 41 in the clamping portion 80. Is made up of. Specifically, an extension 44 having a thickness corresponding to the thickness of the terminal portion 61 is extended from the top surface 42 of the terminal block 41 in the non-clamping portion 85 as the clearance elimination portion 95. The extension portion 44 eliminates a gap corresponding to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45, and the bus bar 45 extends along the top surface 42 of the terminal block 41 in the sandwiching portion 80 and the non-pinching portion 85. Therefore, the mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized.
  • the bus bar 45 extends along the top surface 42 of the terminal block 41 in the clamping unit 80 and the non-clamping unit 85 by the clearance eliminating unit 95. Can be stabilized. Thereby, it is possible to satisfactorily fasten the bus bar 45 to the terminal block 41, and it is possible to realize a good contact between the bus bar 45 and the terminal portion 61 of the harness 60.
  • the clearance eliminating portion 95 can be formed with a simple configuration that increases the height of the terminal block 41, and an increase in the number of components can be avoided, so that the cost can be reduced.
  • FIG. 4 is a cross-sectional view showing a harness mounting structure according to the third embodiment.
  • the harness mounting structure 40B of the third embodiment is different from the harness mounting structure 40 of the first embodiment described above in the configuration of the clearance elimination unit 95.
  • the gap eliminating portion 95 is configured by increasing the thickness of the bus bar 45 in the non-clamping portion 85 by an amount corresponding to the thickness of the terminal portion 61. Specifically, as the gap eliminating portion 95, a thick portion 46 that is thicker than the other portions by an amount corresponding to the thickness of the terminal portion 61 is formed in a range corresponding to the non-clamping portion 85 in the bus bar 45. ing. The thick portion 46 eliminates a gap corresponding to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45, and the bus bar 45 is formed on the top surface 42 of the terminal block 41 at the sandwiching portion 80 and the non-nip portion 85. Therefore, the mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized.
  • the bus bar 45 is along the top surface 42 of the terminal block 41 in the clamping unit 80 and the non-clamping unit 85 by the gap eliminating unit 95. Can be stabilized. Thereby, it is possible to satisfactorily fasten the bus bar 45 to the terminal block 41, and it is possible to realize a good contact between the bus bar 45 and the terminal portion 61 of the harness 60.
  • the clearance eliminating portion 95 can be formed with a simple configuration in which the thickness of the bus bar 45 is increased, and an increase in the number of components can be avoided, so that the cost can be reduced.
  • the range in which the thick portion 46 is formed and the shape of the thick portion 46 are not limited to the illustrated example, and can be changed as appropriate.
  • FIG. 5 is a cross-sectional view showing a harness mounting structure according to the fourth embodiment.
  • the harness attachment structure 40C of the fourth embodiment is different from the harness attachment structure 40 of the first embodiment described above in the configuration of the clearance elimination unit 95.
  • the clearance elimination part 95 is configured by providing a step corresponding to the thickness of the terminal part 61 on the bus bar 45 between the clamping part 80 and the non-clamping part 85.
  • a bent portion 47 is formed as a clearance elimination portion 95 between the sandwiching portion 80 and the non- sandwiching portion 85 in the bus bar 45.
  • a level difference corresponding to the thickness of the terminal portion 61 is provided on the bus bar 45 between the sandwiching portion 80 and the non-sandwich portion 85.
  • the bent portion 47 (step) eliminates a gap corresponding to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45, and the top surface of the terminal block 41 at the pinching portion 80 and the non-pinching portion 85. Therefore, the mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized.
  • the bus bar 45 is along the top surface 42 of the terminal block 41 in the clamping unit 80 and the non-clamping unit 85 by the clearance eliminating unit 95. Can be stabilized. Thereby, it is possible to satisfactorily fasten the bus bar 45 to the terminal block 41, and it is possible to realize a good contact between the bus bar 45 and the terminal portion 61 of the harness 60.
  • the clearance eliminating portion 95 can be formed with a simple configuration in which a step is provided on the bus bar 45, and an increase in the number of components can be avoided, so that the cost can be reduced.
  • the shape of the bending part 47 is not limited to the illustrated example, It can change suitably.
  • the harness 60 is the power line of the electronic component 70 .
  • the present invention is not limited to this, and the harness 60 is a harness for transmitting the power of the battery modules M1 to M4, for example. May be.
  • the harness mounting structure 40 may be used outside the battery pack 10 or may be used for mounting a general harness.
  • each of the clamping part 80 and the non-clamping part 85 has at least one.
  • the number of the clamping parts 80 and the non-clamping parts 85 is not limited.

Abstract

A harness attachment structure 40 provided with a plurality of terminal blocks 41, a bus bar 45 arranged to span the plurality of terminal blocks 41, and a plurality of fastening members 49 fastened to each of the plurality of terminal blocks 41 for clamping the bus bar 45 to the terminal blocks 41. The harness attachment structure 40 has a clamping section 80 where a terminal section 61 of a harness 60 is clamped between the terminal block 41 and the bus bar 45, a non-clamping section 85 where the terminal section 61 of the harness 60 is not clamped between the terminal block 41 and the bus bar 45, and a gap eliminating part 95 for eliminating the gap created between the terminal block 41 and the bus bar 45 at the non-clamping section 85 by the terminal section 61 of the harness 60 being clamped by the clamping section 80.

Description

ハーネス取付構造及び電池パックHarness mounting structure and battery pack
　本発明は、ハーネス取付構造及び電池パックに関する。 The present invention relates to a harness mounting structure and a battery pack.
　従来、電池パックとして、例えば特許文献１に記載されたものがある。特許文献１の電池パックでは、複数の電池モジュールが筐体内に収容されている。各電池モジュールは、複数の電池セルが配列されて構成されている。 Conventionally, as a battery pack, for example, there is one described in Patent Document 1. In the battery pack of Patent Document 1, a plurality of battery modules are accommodated in a housing. Each battery module is configured by arranging a plurality of battery cells.
特開２０１１－５４３５３号公報JP 2011-54353 A
　上記のような電池パックにおいては、ハーネスを端子台に取り付けることによって当該ハーネスの電気的な接続を図る場合がある。例えば、従来の取付構造として、頂面にボルトが突設された複数の端子台と、これら複数の端子台に跨って配置され、各端子台のボルトにナットで締結されたバスバーと、備えるものがある。この取付構造では、ハーネスの端子部をバスバーとナットとの間に挟持されるように取り付けることで、ハーネスとバスバーとを電気的に接続させる。しかしながら、このような取付構造では、ナットによる締結が緩んだ場合、ハーネスの端子部とバスバーとが離れてしまい、ハーネスの電気的な接続が不良となるおそれがあった。 In the battery pack as described above, the harness may be electrically connected by attaching the harness to the terminal block. For example, as a conventional mounting structure, a plurality of terminal blocks with bolts protruding from the top surface, and a bus bar arranged across the plurality of terminal blocks and fastened with nuts to the bolts of each terminal block, There is. In this attachment structure, the harness and the bus bar are electrically connected by attaching the terminal portion of the harness so as to be sandwiched between the bus bar and the nut. However, in such a mounting structure, when the fastening with the nut is loosened, the terminal portion of the harness and the bus bar are separated, and the electrical connection of the harness may be poor.
　本発明の一側面は、上記事情に鑑みてなされたものであり、ハーネスの接続不良の発生を抑制できるハーネス取付構造及び電池パックを提供することを目的とする。 An aspect of the present invention has been made in view of the above circumstances, and an object thereof is to provide a harness mounting structure and a battery pack that can suppress the occurrence of connection failure of a harness.
　本発明の一側面に係るハーネス取付構造は、複数の端子台と、複数の端子台に跨って配置されるバスバーと、複数の端子台の各々に締結され、端子台との間でバスバーを挟持する複数の締結部材と、を備え、端子台とバスバーとの間にハーネスの端子部が挟持された挟持部と、端子台とバスバーとの間にハーネスの端子部が挟持されない非挟持部と、挟持部で挟持されたハーネスの端子部によって生じる非挟持部での端子台とバスバーとの間の隙間を解消する隙間解消部と、を有する。 A harness mounting structure according to an aspect of the present invention includes a plurality of terminal blocks, a bus bar disposed across the plurality of terminal blocks, and a plurality of terminal blocks that are fastened to each other and sandwich the bus bar between the terminal blocks. A plurality of fastening members, a clamping part in which the terminal part of the harness is clamped between the terminal block and the bus bar, and a non-clamping part in which the terminal part of the harness is not clamped between the terminal block and the bus bar, A clearance elimination unit that eliminates a gap between the terminal block and the bus bar at the non-clamping portion that is generated by the terminal portion of the harness that is clamped by the clamping portion.
　この取付構造によれば、挟持部で締結部材による締結が緩んだとしても、非挟持部でのバスバーの固定が維持されるので、バスバーの剛性によって端子台とバスバーとの間にハーネスの端子部が挟持された状態を維持できる。したがって、挟持部で締結部材による締結が緩んだとしても、ハーネスの接続不良の発生を抑制することが可能となる。一方、この取付構造では、挟持部で挟持されたハーネスの端子部によって生じる非挟持部での端子台とバスバーとの間の隙間を解消する隙間解消部を有している。この隙間解消部により、複数の端子台に対するバスバーの取付姿勢を安定させることができ、バスバーとハーネスの端子部との良好な接触を実現することが可能となる。 According to this mounting structure, even if the fastening by the fastening member is loosened at the clamping part, the fixing of the bus bar at the non-clamping part is maintained, so the terminal part of the harness is between the terminal block and the bus bar due to the rigidity of the bus bar. Can be maintained. Therefore, even if the fastening by the fastening member is loosened at the clamping part, it is possible to suppress the occurrence of poor connection of the harness. On the other hand, this mounting structure has a clearance elimination part that eliminates a clearance between the terminal block and the bus bar at the non-clamping part that is generated by the terminal part of the harness that is clamped by the clamping part. By this clearance elimination part, the mounting posture of the bus bar with respect to a plurality of terminal blocks can be stabilized, and good contact between the bus bar and the terminal part of the harness can be realized.
　隙間解消部は、ハーネスの端子部の厚さに相当する厚さのスペーサを非挟持部における端子台とバスバーとの間に配置することによって構成されていてもよい。この取付構造によれば、端子台とバスバーとの間にスペーサを設ける簡易な構成で隙間解消部を形成でき、コストを低減することが可能となる。 The clearance elimination part may be comprised by arrange | positioning the spacer of thickness equivalent to the thickness of the terminal part of a harness between the terminal block in a non-clamping part, and a bus bar. According to this mounting structure, the clearance elimination part can be formed with a simple configuration in which a spacer is provided between the terminal block and the bus bar, and the cost can be reduced.
　隙間解消部は、挟持部における端子台の高さに対して非挟持部における端子台の高さをハーネスの端子部の厚さに相当する分だけ高くすることによって構成されていてもよい。この取付構造によれば、端子台の高さを高くする簡易な構成で隙間解消部を形成できると共に、部品点数の増加を回避できることから、コストを低減することが可能となる。 The gap elimination part may be configured by increasing the height of the terminal block in the non-clamping part by an amount corresponding to the thickness of the terminal part of the harness relative to the height of the terminal block in the clamping part. According to this mounting structure, the clearance elimination portion can be formed with a simple configuration that increases the height of the terminal block, and an increase in the number of components can be avoided, so that the cost can be reduced.
　隙間解消部は、非挟持部におけるバスバーの厚さをハーネスの端子部の厚さに相当する分だけ厚くすることによって構成されていてもよい。この取付構造によれば、バスバーの厚さを厚くする簡易な構成で隙間解消部を形成できると共に、部品点数の増加を回避できることから、コストを低減することが可能となる。 The gap clearance portion may be configured by increasing the thickness of the bus bar in the non-clamping portion by an amount corresponding to the thickness of the harness terminal portion. According to this mounting structure, the clearance elimination portion can be formed with a simple configuration that increases the thickness of the bus bar, and an increase in the number of components can be avoided, so that the cost can be reduced.
　隙間解消部は、挟持部と非挟持部との間でバスバーにハーネスの端子部の厚さに相当する分の段差を設けることによって構成されていてもよい。この取付構造によれば、バスバーに段差を設ける簡易な構成で隙間解消部を形成できると共に、部品点数の増加を回避できることから、コストを低減することが可能となる。 The clearance elimination part may be constituted by providing a step corresponding to the thickness of the terminal part of the harness on the bus bar between the clamping part and the non-clamping part. According to this mounting structure, the clearance elimination part can be formed with a simple configuration in which a step is provided on the bus bar, and an increase in the number of parts can be avoided, so that the cost can be reduced.
　本発明の一側面に係る電池パックは、複数の電池セルを配列してなる電池モジュールと、上記のハーネス取付構造と、を筐体内に収容してなる。 The battery pack according to one aspect of the present invention includes a battery module in which a plurality of battery cells are arranged and the harness mounting structure described above housed in a housing.
　この電池パックでは、挟持部で締結部材による締結が緩んだとしても、非挟持部でのバスバーの固定が維持されるので、バスバーの剛性によって端子台とバスバーとの間にハーネスの端子部が挟持された状態を維持できる。したがって、挟持部で締結部材による締結が緩んだとしても、ハーネスの接続不良の発生を抑制することが可能となる。一方、この電池パックでは、挟持部で挟持されたハーネスの端子部によって生じる非挟持部での端子台とバスバーとの間の隙間を解消する隙間解消部を有している。この隙間解消部により、複数の端子台に対するバスバーの取付姿勢を安定させることができ、バスバーとハーネスの端子部との良好な接触を実現することが可能となる。 In this battery pack, even if the fastening by the fastening member is loosened at the clamping part, the fixing of the bus bar at the non-clamping part is maintained, so that the terminal part of the harness is clamped between the terminal block and the bus bar by the rigidity of the bus bar. Can be maintained. Therefore, even if the fastening by the fastening member is loosened at the clamping part, it is possible to suppress the occurrence of poor connection of the harness. On the other hand, this battery pack has a clearance elimination unit that eliminates the clearance between the terminal block and the bus bar at the non-clamping portion that is generated by the terminal portion of the harness that is clamped by the clamping portion. By this clearance elimination part, the mounting posture of the bus bar with respect to a plurality of terminal blocks can be stabilized, and good contact between the bus bar and the terminal part of the harness can be realized.
　本発明の一側面によれば、ハーネスの接続不良の発生を抑制できるハーネス取付構造及び電池パックを提供できる。 According to one aspect of the present invention, it is possible to provide a harness mounting structure and a battery pack that can suppress the occurrence of poor connection of the harness.
第１の実施形態に係る電池パックを示す斜視図である。It is a perspective view which shows the battery pack which concerns on 1st Embodiment. 第１の実施形態に係るハーネス取付構造を示す断面図である。It is sectional drawing which shows the harness attachment structure which concerns on 1st Embodiment. 第２の実施形態に係るハーネス取付構造を示す断面図である。It is sectional drawing which shows the harness attachment structure which concerns on 2nd Embodiment. 第３の実施形態に係るハーネス取付構造を示す断面図である。It is sectional drawing which shows the harness attachment structure which concerns on 3rd Embodiment. 第４の実施形態に係るハーネス取付構造を示す断面図である。It is sectional drawing which shows the harness attachment structure which concerns on 4th Embodiment.
［第１の実施形態］
　以下、添付図面を参照して、本発明の好適な実施形態について詳細に説明する。なお、図面の説明において同一又は相当要素には同一符号を付し、重複する説明は省略する。 [First Embodiment]
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted.
　図１は、第１の実施形態に係る電池パックを示す斜視図である。図１に示すように、本実施形態に係る電池パック１０は、筐体１１と、筐体１１に収容された複数の電池モジュールＭ１～Ｍ４と、を有している。 FIG. 1 is a perspective view showing the battery pack according to the first embodiment. As shown in FIG. 1, the battery pack 10 according to the present embodiment includes a housing 11 and a plurality of battery modules M1 to M4 accommodated in the housing 11.
　筐体１１は、例えば矩形箱状に形成されており、本体１６と、天板１７と、蓋部材１８と、を有している。本体１６は、矩形板状の底板１２と、底板１２の三辺に立設された矩形板状の側壁１３～１５と、を有している。本体１６における側壁１３～１５に囲まれる開口は、天板１７で閉塞されている。本体１６における底板１２、天板１７及び側壁１３～１５に囲まれる開口は、蓋部材１８で閉塞されている。このように、筐体１１は、当該筐体１１内の気体が外部に漏れないように密閉されている。なお、側壁１５には、筐体１１の内圧が上昇したときに破断し、筐体１１内の圧力を開放する圧力開放弁（図示せず）が設けられてもよい。 The housing 11 is formed in, for example, a rectangular box shape, and includes a main body 16, a top plate 17, and a lid member 18. The main body 16 includes a rectangular plate-like bottom plate 12 and rectangular plate-like side walls 13 to 15 erected on three sides of the bottom plate 12. An opening surrounded by the side walls 13 to 15 in the main body 16 is closed by a top plate 17. An opening surrounded by the bottom plate 12, the top plate 17, and the side walls 13 to 15 in the main body 16 is closed by a lid member 18. Thus, the housing | casing 11 is sealed so that the gas in the said housing | casing 11 may not leak outside. The side wall 15 may be provided with a pressure release valve (not shown) that breaks when the internal pressure of the housing 11 rises and releases the pressure inside the housing 11.
　電池モジュールＭ１～Ｍ４は、側壁１４に固定されている。電池モジュールＭ１～Ｍ４は、上下方向に二段に配置されると共に、左右方向に並んで配置されている。 The battery modules M1 to M4 are fixed to the side wall 14. The battery modules M1 to M4 are arranged in two stages in the vertical direction and arranged side by side in the horizontal direction.
　電池モジュールＭ１～Ｍ４では、複数（この例では、７つ）の電池セル２２が電池ホルダ２４によって保持されている。電池セル２２は、例えばリチウムイオン二次電池等の非水電解質二次電池である。各電池セル２２は、正極端子及び負極端子を有している。複数の電池セル２２は、極性の異なる端子が隣り合うように配列されている。複数の電池セル２２は、バスバー２８によって電気的に直列に接続されている。電池セル２２の並び方向における両端には、エンドプレート３０が設けられている。エンドプレート３０には、ブラケット３１が取り付けられている。ブラケット３１は、側壁１４に固定されており、これにより電池モジュールＭ１～Ｍ４が側壁１４に固定されている。 In the battery modules M1 to M4, a plurality (seven in this example) of battery cells 22 are held by the battery holder 24. The battery cell 22 is a nonaqueous electrolyte secondary battery such as a lithium ion secondary battery. Each battery cell 22 has a positive electrode terminal and a negative electrode terminal. The plurality of battery cells 22 are arranged so that terminals having different polarities are adjacent to each other. The plurality of battery cells 22 are electrically connected in series by a bus bar 28. End plates 30 are provided at both ends in the arrangement direction of the battery cells 22. A bracket 31 is attached to the end plate 30. The bracket 31 is fixed to the side wall 14, whereby the battery modules M1 to M4 are fixed to the side wall 14.
　図１に示すように、筐体１１内には、電池モジュールＭ１～Ｍ４と天板１７との間にハーネス取付構造４０が設けられている。ハーネス取付構造４０では、ハーネス６０を端子台４１に取り付けることによってハーネス６０の電気的な接続を図る。ハーネス６０は、例えば、電子部品７０に電力を供給するための電源線である。電子部品７０は、例えば、電池モジュールＭ１～Ｍ４の充電状態の検出や制御等を行うＥＣＵ（Electronic Control Unit）である。 As shown in FIG. 1, a harness mounting structure 40 is provided in the casing 11 between the battery modules M1 to M4 and the top plate 17. In the harness attachment structure 40, the harness 60 is electrically connected to the terminal block 41 by attaching the harness 60 to the terminal block 41. The harness 60 is, for example, a power supply line for supplying electric power to the electronic component 70. The electronic component 70 is, for example, an ECU (Electronic Control Unit) that performs detection and control of the state of charge of the battery modules M1 to M4.
　図２は、第１の実施形態に係るハーネス取付構造を示す断面図である。図１及び図２に示すように、ハーネス取付構造４０は、ブラケット５０と、ブラケット５０に固定された複数の端子台４１と、複数の端子台４１に跨って配置されるバスバー４５と、複数の端子台４１の各々に締結され、端子台４１との間でバスバー４５を挟持する複数の締結部材４９と、を備えている。締結部材４９は、例えばナットである。 FIG. 2 is a cross-sectional view showing the harness mounting structure according to the first embodiment. As shown in FIGS. 1 and 2, the harness attachment structure 40 includes a bracket 50, a plurality of terminal blocks 41 fixed to the bracket 50, a bus bar 45 disposed across the plurality of terminal blocks 41, and a plurality of terminal blocks 41. And a plurality of fastening members 49 that are fastened to each of the terminal blocks 41 and sandwich the bus bar 45 with the terminal blocks 41. The fastening member 49 is, for example, a nut.
　ブラケット５０は、例えば銅板を折り曲げることで形成されている。ブラケット５０は、図１に示すように、第１の部分５０ａと、第１の部分５０ａの上端から第１の部分５０ａに対して略垂直に屈曲して延びる第２の部分５０ｂと、を有して略逆Ｌ字状を呈している。ブラケット５０は、第１の部分５０ａが側壁１４に沿った状態でボルト５１によって固定されることにより、側壁１４に固定されている。また、ブラケット５０は、第２の部分５０ｂが側壁１４から内方に突出して底板１２及び天板１７と平行に延在するように、側壁１４に固定されている。第２の部分５０ｂ上には、複数の端子台４１が所定の間隔を空けて配置されている。 The bracket 50 is formed, for example, by bending a copper plate. As shown in FIG. 1, the bracket 50 includes a first portion 50a and a second portion 50b extending from the upper end of the first portion 50a so as to be bent substantially perpendicularly to the first portion 50a. Thus, it has a substantially inverted L shape. The bracket 50 is fixed to the side wall 14 by being fixed by bolts 51 in a state where the first portion 50 a is along the side wall 14. The bracket 50 is fixed to the side wall 14 so that the second portion 50 b protrudes inward from the side wall 14 and extends in parallel with the bottom plate 12 and the top plate 17. On the second portion 50b, a plurality of terminal blocks 41 are arranged at predetermined intervals.
　端子台４１は、例えば樹脂により形成されて円柱状を呈している。端子台４１の頂面４２には、締結部材４９が締結されるボルト４３が突設されている。端子台４１は、基端において第２の部分５０ｂに固定されており、ブラケット５０を介して側壁１４に固定されている。なお、図１及び図２では、２つの端子台４１のみが示されているが、これらの端子台４１に連なるように、図示しない他の端子台４１が更に配列されていてもよい。 The terminal block 41 is formed of resin, for example, and has a cylindrical shape. On the top surface 42 of the terminal block 41, a bolt 43 to which the fastening member 49 is fastened is projected. The terminal block 41 is fixed to the second portion 50 b at the base end, and is fixed to the side wall 14 via the bracket 50. Although only two terminal blocks 41 are shown in FIGS. 1 and 2, other terminal blocks 41 (not shown) may be further arranged so as to be continuous with these terminal blocks 41.
　バスバー４５は、例えば銅により形成されて矩形板状を呈している。バスバー４５には、図２に示すように、複数の孔４８が所定の間隔を空けて形成されている。バスバー４５は、孔４８と各端子台４１のボルト４３との位置を合わせ、孔４８にボルト４３を通した状態で、複数の端子台４１に跨って配置されている。そして、バスバー４５は、孔４８から突出するボルト４３に締結部材４９を締結することにより、各端子台４１に対して締結されている。 The bus bar 45 is formed of, for example, copper and has a rectangular plate shape. As shown in FIG. 2, a plurality of holes 48 are formed in the bus bar 45 at predetermined intervals. The bus bar 45 is disposed across the plurality of terminal blocks 41 in a state where the positions of the holes 48 and the bolts 43 of the terminal blocks 41 are aligned and the bolts 43 are passed through the holes 48. The bus bar 45 is fastened to each terminal block 41 by fastening a fastening member 49 to the bolt 43 protruding from the hole 48.
　ハーネス取付構造４０は、端子台４１とバスバー４５との間にハーネス６０の端子部６１が挟持された挟持部８０と、端子台４１とバスバー４５との間に端子部６１が挟持されない非挟持部８５と、を有している。端子部６１は、例えば、孔６３を有する丸端子であり、ハーネス６０の先端に圧着されている。 The harness mounting structure 40 includes a pinching portion 80 in which the terminal portion 61 of the harness 60 is pinched between the terminal block 41 and the bus bar 45, and a non-pinching portion in which the terminal portion 61 is not pinched between the terminal block 41 and the bus bar 45. 85. The terminal portion 61 is, for example, a round terminal having a hole 63 and is crimped to the tip of the harness 60.
　挟持部８０においては、端子台４１とバスバー４５との間に端子部６１が挟持されている。端子部６１は、ボルト４３が孔６３を通過した状態で端子台４１とバスバー４５との間に配置されており、締結部材４９によって端子台４１とバスバー４５との間で挟持されている。これにより、端子部６１とバスバー４５とが電気的に接続されている。 In the clamping part 80, the terminal part 61 is clamped between the terminal block 41 and the bus bar 45. The terminal portion 61 is disposed between the terminal block 41 and the bus bar 45 with the bolt 43 passing through the hole 63, and is sandwiched between the terminal block 41 and the bus bar 45 by the fastening member 49. Thereby, the terminal part 61 and the bus bar 45 are electrically connected.
　非挟持部８５においては、挟持部８０にて端子台４１とバスバー４５との間に端子部６１を配置していることにより、端子台４１とバスバー４５との間に端子部６１の厚みに相当する隙間が生じることとなる。このような隙間が存在したまま端子台４１にバスバー４５を取り付けると、挟持部８０と非挟持部８５とにおいて端子台４１の頂面４２に対するバスバー４５の取付姿勢が不安定となり、バスバー４５の締結不良が生じることが考えられる。そこで、ハーネス取付構造４０では、当該隙間を解消するための隙間解消部９５としてスペーサ９０が用いられている。 In the non-clamping portion 85, the terminal portion 61 is disposed between the terminal block 41 and the bus bar 45 in the clamping portion 80, and thus corresponds to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45. A gap is generated. If the bus bar 45 is attached to the terminal block 41 with such a gap present, the mounting posture of the bus bar 45 with respect to the top surface 42 of the terminal block 41 becomes unstable in the clamping part 80 and the non-clamping part 85, and the fastening of the bus bar 45 It is possible that defects will occur. Therefore, in the harness mounting structure 40, the spacer 90 is used as the gap eliminating portion 95 for eliminating the gap.
　スペーサ９０は、例えば樹脂により形成されている。スペーサ９０は、例えば、孔９１を有する円環状に形成され、端子部６１の厚さに相当する厚さに形成されている。スペーサ９０は、ボルト４３が孔９１を通過した状態で端子台４１とバスバー４５との間に配置されており、締結部材４９によって端子台４１とバスバー４５との間で挟持されている。スペーサ９０により、端子台４１とバスバー４５との間の端子部６１の厚みに相当する隙間が解消され、バスバー４５が挟持部８０と非挟持部８５とにおいて端子台４１の頂面４２に沿うので、端子台４１に対するバスバー４５の取付姿勢を安定化できる。 The spacer 90 is made of, for example, resin. The spacer 90 is formed in, for example, an annular shape having a hole 91 and has a thickness corresponding to the thickness of the terminal portion 61. The spacer 90 is disposed between the terminal block 41 and the bus bar 45 with the bolt 43 passing through the hole 91, and is sandwiched between the terminal block 41 and the bus bar 45 by the fastening member 49. The spacer 90 eliminates the gap corresponding to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45, and the bus bar 45 extends along the top surface 42 of the terminal block 41 in the sandwiching portion 80 and the non-pinch portion 85. The mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized.
　以上説明したハーネス取付構造４０によれば、挟持部８０で締結部材４９による締結が緩んだとしても、非挟持部８５でのバスバー４５の固定が維持されるので、バスバー４５の剛性によって端子台４１とバスバー４５との間にハーネス６０の端子部６１が挟持された状態を維持できる。したがって、挟持部８０で締結部材４９による締結が緩んだとしても、ハーネス６０の接続不良の発生を抑制することが可能となる。 According to the harness mounting structure 40 described above, even if the fastening by the fastening member 49 is loosened at the clamping part 80, the fixing of the bus bar 45 at the non-clamping part 85 is maintained. The terminal portion 61 of the harness 60 can be maintained between the bus bar 45 and the bus bar 45. Therefore, even if the fastening by the fastening member 49 is loosened at the sandwiching portion 80, it is possible to suppress the occurrence of poor connection of the harness 60.
　また、ハーネス取付構造４０では、挟持部８０で挟持されたハーネス６０の端子部６１によって生じる非挟持部８５での端子台４１とバスバー４５との間の隙間を解消する隙間解消部９５を有している。この隙間解消部９５により、バスバー４５が挟持部８０と非挟持部８５とにおいて端子台４１の頂面４２に沿うので、端子台４１に対するバスバー４５の取付姿勢を安定化できる。これにより、バスバー４５の端子台４１に対する締結を良好に行うことができ、バスバー４５とハーネス６０の端子部６１との良好な接触を実現することが可能となる。 In addition, the harness mounting structure 40 includes a clearance elimination unit 95 that eliminates the clearance between the terminal block 41 and the bus bar 45 in the non-clamping portion 85 caused by the terminal portion 61 of the harness 60 that is clamped by the clamping portion 80. ing. Due to the clearance eliminating portion 95, the bus bar 45 extends along the top surface 42 of the terminal block 41 at the sandwiching portion 80 and the non-pinch portion 85, so that the mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized. Thereby, it is possible to satisfactorily fasten the bus bar 45 to the terminal block 41, and it is possible to realize a good contact between the bus bar 45 and the terminal portion 61 of the harness 60.
　また、ハーネス取付構造４０によれば、端子台４１とバスバー４５との間にスペーサ９０を設ける簡易な構成で隙間解消部９５を形成でき、コストを低減することが可能となる。 Moreover, according to the harness mounting structure 40, the clearance elimination part 95 can be formed by the simple structure which provides the spacer 90 between the terminal block 41 and the bus-bar 45, and it becomes possible to reduce cost.
［第２の実施形態］
　図３を参照しつつ、第２の実施形態に係るハーネス取付構造を説明する。図３は、第２の実施形態に係るハーネス取付構造を示す断面図である。第２の実施形態のハーネス取付構造４０Ａは、隙間解消部９５の構成において上述した第１の実施形態のハーネス取付構造４０と相違する。 [Second Embodiment]
The harness mounting structure according to the second embodiment will be described with reference to FIG. FIG. 3 is a cross-sectional view showing a harness mounting structure according to the second embodiment. The harness mounting structure 40A of the second embodiment is different from the harness mounting structure 40 of the first embodiment described above in the configuration of the clearance elimination unit 95.
　ハーネス取付構造４０Ａでは、隙間解消部９５は、挟持部８０における端子台４１の高さに対して非挟持部８５における端子台４１の高さを端子部６１の厚さに相当する分だけ高くすることによって構成されている。具体的には、隙間解消部９５として、非挟持部８５における端子台４１の頂面４２から、端子部６１の厚さに相当する厚みの延長部４４が延設されている。延長部４４により、端子台４１とバスバー４５との間の端子部６１の厚みに相当する隙間が解消され、バスバー４５が挟持部８０と非挟持部８５とにおいて端子台４１の頂面４２に沿うので、端子台４１に対するバスバー４５の取付姿勢を安定化できる。 In the harness mounting structure 40 </ b> A, the clearance eliminating portion 95 increases the height of the terminal block 41 in the non-clamping portion 85 by an amount corresponding to the thickness of the terminal portion 61 with respect to the height of the terminal block 41 in the clamping portion 80. Is made up of. Specifically, an extension 44 having a thickness corresponding to the thickness of the terminal portion 61 is extended from the top surface 42 of the terminal block 41 in the non-clamping portion 85 as the clearance elimination portion 95. The extension portion 44 eliminates a gap corresponding to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45, and the bus bar 45 extends along the top surface 42 of the terminal block 41 in the sandwiching portion 80 and the non-pinching portion 85. Therefore, the mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized.
　このようなハーネス取付構造４０Ａによっても、隙間解消部９５により、バスバー４５が挟持部８０と非挟持部８５とにおいて端子台４１の頂面４２に沿うので、端子台４１に対するバスバー４５の取付姿勢を安定化できる。これにより、バスバー４５の端子台４１に対する締結を良好に行うことができ、バスバー４５とハーネス６０の端子部６１との良好な接触を実現することが可能となる。また、端子台４１の高さを高くする簡易な構成で隙間解消部９５を形成できると共に、部品点数の増加を回避できることから、コストを低減することが可能となる。 Even with such a harness mounting structure 40A, the bus bar 45 extends along the top surface 42 of the terminal block 41 in the clamping unit 80 and the non-clamping unit 85 by the clearance eliminating unit 95. Can be stabilized. Thereby, it is possible to satisfactorily fasten the bus bar 45 to the terminal block 41, and it is possible to realize a good contact between the bus bar 45 and the terminal portion 61 of the harness 60. In addition, the clearance eliminating portion 95 can be formed with a simple configuration that increases the height of the terminal block 41, and an increase in the number of components can be avoided, so that the cost can be reduced.
［第３の実施形態］
　図４を参照しつつ、第３の実施形態に係るハーネス取付構造を説明する。図４は、第３の実施形態に係るハーネス取付構造を示す断面図である。第３の実施形態のハーネス取付構造４０Ｂは、隙間解消部９５の構成において上述した第１の実施形態のハーネス取付構造４０と相違する。 [Third Embodiment]
A harness mounting structure according to a third embodiment will be described with reference to FIG. FIG. 4 is a cross-sectional view showing a harness mounting structure according to the third embodiment. The harness mounting structure 40B of the third embodiment is different from the harness mounting structure 40 of the first embodiment described above in the configuration of the clearance elimination unit 95.
　ハーネス取付構造４０Ｂでは、隙間解消部９５は、非挟持部８５におけるバスバー４５の厚さを端子部６１の厚さに相当する分だけ厚くすることによって構成されている。具体的には、隙間解消部９５として、バスバー４５における非挟持部８５に対応する範囲に、端子部６１の厚さに相当する分だけ他の部分よりも厚くされた厚肉部４６が形成されている。厚肉部４６により、端子台４１とバスバー４５との間の端子部６１の厚みに相当する隙間が解消され、バスバー４５が挟持部８０と非挟持部８５とにおいて端子台４１の頂面４２に沿うので、端子台４１に対するバスバー４５の取付姿勢を安定化できる。 In the harness mounting structure 40 </ b> B, the gap eliminating portion 95 is configured by increasing the thickness of the bus bar 45 in the non-clamping portion 85 by an amount corresponding to the thickness of the terminal portion 61. Specifically, as the gap eliminating portion 95, a thick portion 46 that is thicker than the other portions by an amount corresponding to the thickness of the terminal portion 61 is formed in a range corresponding to the non-clamping portion 85 in the bus bar 45. ing. The thick portion 46 eliminates a gap corresponding to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45, and the bus bar 45 is formed on the top surface 42 of the terminal block 41 at the sandwiching portion 80 and the non-nip portion 85. Therefore, the mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized.
　このようなハーネス取付構造４０Ｂによっても、隙間解消部９５により、バスバー４５が挟持部８０と非挟持部８５とにおいて端子台４１の頂面４２に沿うので、端子台４１に対するバスバー４５の取付姿勢を安定化できる。これにより、バスバー４５の端子台４１に対する締結を良好に行うことができ、バスバー４５とハーネス６０の端子部６１との良好な接触を実現することが可能となる。また、バスバー４５の厚さを厚くする簡易な構成で隙間解消部９５を形成できると共に、部品点数の増加を回避できることから、コストを低減することが可能となる。なお、厚肉部４６を形成する範囲及び厚肉部４６の形状は、図示した例に限定されるものではなく、適宜変更可能である。 Even with such a harness mounting structure 40B, the bus bar 45 is along the top surface 42 of the terminal block 41 in the clamping unit 80 and the non-clamping unit 85 by the gap eliminating unit 95. Can be stabilized. Thereby, it is possible to satisfactorily fasten the bus bar 45 to the terminal block 41, and it is possible to realize a good contact between the bus bar 45 and the terminal portion 61 of the harness 60. In addition, the clearance eliminating portion 95 can be formed with a simple configuration in which the thickness of the bus bar 45 is increased, and an increase in the number of components can be avoided, so that the cost can be reduced. The range in which the thick portion 46 is formed and the shape of the thick portion 46 are not limited to the illustrated example, and can be changed as appropriate.
［第４の実施形態］
　図５を参照しつつ、第４の実施形態に係るハーネス取付構造を説明する。図５は、第４の実施形態に係るハーネス取付構造を示す断面図である。第４の実施形態のハーネス取付構造４０Ｃは、隙間解消部９５の構成において上述した第１の実施形態のハーネス取付構造４０と相違する。 [Fourth Embodiment]
A harness mounting structure according to a fourth embodiment will be described with reference to FIG. FIG. 5 is a cross-sectional view showing a harness mounting structure according to the fourth embodiment. The harness attachment structure 40C of the fourth embodiment is different from the harness attachment structure 40 of the first embodiment described above in the configuration of the clearance elimination unit 95.
　ハーネス取付構造４０Ｃでは、隙間解消部９５は、挟持部８０と非挟持部８５との間でバスバー４５に端子部６１の厚さに相当する分の段差を設けることによって構成されている。具体的には、隙間解消部９５として、バスバー４５における挟持部８０と非挟持部８５との間に曲げ部４７が形成されている。これにより、挟持部８０と非挟持部８５との間でバスバー４５に端子部６１の厚さに相当する分の段差が設けられている。曲げ部４７（段差）により、端子台４１とバスバー４５との間の端子部６１の厚みに相当する隙間が解消され、バスバー４５が挟持部８０と非挟持部８５とにおいて端子台４１の頂面４２に沿うので、端子台４１に対するバスバー４５の取付姿勢を安定化できる。 In the harness mounting structure 40C, the clearance elimination part 95 is configured by providing a step corresponding to the thickness of the terminal part 61 on the bus bar 45 between the clamping part 80 and the non-clamping part 85. Specifically, a bent portion 47 is formed as a clearance elimination portion 95 between the sandwiching portion 80 and the non- sandwiching portion 85 in the bus bar 45. Thereby, a level difference corresponding to the thickness of the terminal portion 61 is provided on the bus bar 45 between the sandwiching portion 80 and the non-sandwich portion 85. The bent portion 47 (step) eliminates a gap corresponding to the thickness of the terminal portion 61 between the terminal block 41 and the bus bar 45, and the top surface of the terminal block 41 at the pinching portion 80 and the non-pinching portion 85. Therefore, the mounting posture of the bus bar 45 with respect to the terminal block 41 can be stabilized.
　このようなハーネス取付構造４０Ｃによっても、隙間解消部９５により、バスバー４５が挟持部８０と非挟持部８５とにおいて端子台４１の頂面４２に沿うので、端子台４１に対するバスバー４５の取付姿勢を安定化できる。これにより、バスバー４５の端子台４１に対する締結を良好に行うことができ、バスバー４５とハーネス６０の端子部６１との良好な接触を実現することが可能となる。また、バスバー４５に段差を設ける簡易な構成で隙間解消部９５を形成できると共に、部品点数の増加を回避できることから、コストを低減することが可能となる。なお、曲げ部４７の形状は、図示した例に限定されるものではなく、適宜変更可能である。 Even with such a harness mounting structure 40C, the bus bar 45 is along the top surface 42 of the terminal block 41 in the clamping unit 80 and the non-clamping unit 85 by the clearance eliminating unit 95. Can be stabilized. Thereby, it is possible to satisfactorily fasten the bus bar 45 to the terminal block 41, and it is possible to realize a good contact between the bus bar 45 and the terminal portion 61 of the harness 60. In addition, the clearance eliminating portion 95 can be formed with a simple configuration in which a step is provided on the bus bar 45, and an increase in the number of components can be avoided, so that the cost can be reduced. In addition, the shape of the bending part 47 is not limited to the illustrated example, It can change suitably.
　以上、本発明の好適な実施形態について説明したが、本発明は、上記実施形態に限られるものではなく、各請求項に記載した要旨を変更しない範囲で変形し、又は他のものに適用してもよい。 The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments. The present invention can be modified without departing from the scope described in the claims or applied to other embodiments. May be.
　例えば、上記実施形態では、ハーネス６０が電子部品７０の電源線である例を説明したが、これに限定されず、ハーネス６０は、例えば電池モジュールＭ１～Ｍ４の電力を伝送するためのハーネスであってもよい。また、ハーネス取付構造４０は、電池パック１０の外部において用いられてもよく、一般的なハーネスの取り付けに用いられてもよい。 For example, in the above-described embodiment, the example in which the harness 60 is the power line of the electronic component 70 has been described. However, the present invention is not limited to this, and the harness 60 is a harness for transmitting the power of the battery modules M1 to M4, for example. May be. Further, the harness mounting structure 40 may be used outside the battery pack 10 or may be used for mounting a general harness.
　また、上記実施形態では、ハーネス取付構造４０が挟持部８０及び非挟持部８５を１つずつ有する例を説明したが、挟持部８０及び非挟持部８５のそれぞれを少なくとも１つ有していればよく、挟持部８０及び非挟持部８５の数は限定されない。 Moreover, although the harness attachment structure 40 demonstrated the example which has the clamping part 80 and the non-clamping part 85 1 each in the said embodiment, if each of the clamping part 80 and the non-clamping part 85 has at least one. The number of the clamping parts 80 and the non-clamping parts 85 is not limited.
１０…電池パック、１１…筐体、２２…電池セル、４０，４０Ａ，４０Ｂ，４０Ｃ…ハーネス取付構造、４１…端子台、４３…ボルト、４４…延長部、４５…バスバー、４６…厚肉部、４７…曲げ部、４９…締結部材、５０…ブラケット、６０…ハーネス、６１…端子部、７０…電子部品、８０…挟持部、８５…非挟持部、９０…スペーサ、９５…隙間解消部、Ｍ１～Ｍ４…電池モジュール。 DESCRIPTION OF SYMBOLS 10 ... Battery pack, 11 ... Case, 22 ... Battery cell, 40, 40A, 40B, 40C ... Harness mounting structure, 41 ... Terminal block, 43 ... Bolt, 44 ... Extension part, 45 ... Bus bar, 46 ... Thick part , 47 ... bending part, 49 ... fastening member, 50 ... bracket, 60 ... harness, 61 ... terminal part, 70 ... electronic component, 80 ... clamping part, 85 ... non-clamping part, 90 ... spacer, 95 ... clearance elimination part, M1 to M4: Battery modules.

Claims (6)

  1. 　複数の端子台と、
    　複数の前記端子台に跨って配置されるバスバーと、
    　複数の前記端子台の各々に締結され、前記端子台との間で前記バスバーを挟持する複数の締結部材と、を備え、
    　前記端子台と前記バスバーとの間にハーネスの端子部が挟持された挟持部と、
    　前記端子台と前記バスバーとの間にハーネスの端子部が挟持されない非挟持部と、
    　前記挟持部で挟持された前記ハーネスの端子部によって生じる前記非挟持部での前記端子台と前記バスバーとの間の隙間を解消する隙間解消部と、を有する、ハーネス取付構造。     Multiple terminal blocks;
    A bus bar disposed across a plurality of the terminal blocks;
    A plurality of fastening members that are fastened to each of the plurality of terminal blocks and sandwich the bus bar with the terminal blocks;
    A clamping part in which a terminal part of a harness is clamped between the terminal block and the bus bar;
    A non-clamping part in which a terminal part of a harness is not clamped between the terminal block and the bus bar;
    A harness mounting structure, comprising: a clearance elimination unit that eliminates a clearance between the terminal block and the bus bar at the non-clamping portion generated by the terminal portion of the harness clamped by the clamping portion.
  2. 　前記隙間解消部は、前記ハーネスの端子部の厚さに相当する厚さのスペーサを前記非挟持部における前記端子台と前記バスバーとの間に配置することによって構成されている、請求項１に記載のハーネス取付構造。 The gap clearance portion is configured by arranging a spacer having a thickness corresponding to the thickness of the terminal portion of the harness between the terminal block and the bus bar in the non-clamping portion. The described harness mounting structure.
  3. 　前記隙間解消部は、前記挟持部における前記端子台の高さに対して前記非挟持部における前記端子台の高さを前記ハーネスの端子部の厚さに相当する分だけ高くすることによって構成されている、請求項１に記載のハーネス取付構造。 The clearance elimination part is configured by increasing the height of the terminal block in the non-clamping part by an amount corresponding to the thickness of the terminal part of the harness relative to the height of the terminal block in the clamping part. The harness mounting structure according to claim 1.
  4. 　前記隙間解消部は、前記非挟持部におけるバスバーの厚さを前記ハーネスの端子部の厚さに相当する分だけ厚くすることによって構成されている、請求項１に記載のハーネス取付構造。 2. The harness mounting structure according to claim 1, wherein the clearance elimination part is configured by increasing the thickness of the bus bar in the non-clamping part by an amount corresponding to the thickness of the terminal part of the harness.
  5. 　前記隙間解消部は、前記挟持部と前記非挟持部との間で前記バスバーに前記ハーネスの端子部の厚さに相当する分の段差を設けることによって構成されている、請求項１に記載のハーネス取付構造。 The said clearance elimination part is comprised by providing the level | step difference equivalent to the thickness of the terminal part of the said harness to the said bus bar between the said clamping part and the said non-clamping part. Harness mounting structure.
  6. 　複数の電池セルを配列してなる電池モジュールと、請求項１～５のいずれか１項に記載のハーネス取付構造と、を筐体内に収容してなる電池パック。 A battery pack comprising a battery module in which a plurality of battery cells are arranged and the harness mounting structure according to any one of claims 1 to 5 housed in a housing.
PCT/JP2015/066476 2014-09-19 2015-06-08 Harness attachment structure and battery pack WO2016042855A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004031049A (en) * 2002-06-25 2004-01-29 Yazaki Corp Battery connection plate
WO2006059434A1 (en) * 2004-11-30 2006-06-08 Nec Corporation Electrical device assembly
JP2008192552A (en) * 2007-02-07 2008-08-21 Toyota Motor Corp Electrode
JP2008270121A (en) * 2007-04-25 2008-11-06 Sanyo Electric Co Ltd Power supply device for vehicle
JP2013235734A (en) * 2012-05-09 2013-11-21 Toyota Industries Corp Battery stack
JP2015082492A (en) * 2013-10-24 2015-04-27 株式会社豊田自動織機 Battery pack

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004031049A (en) * 2002-06-25 2004-01-29 Yazaki Corp Battery connection plate
WO2006059434A1 (en) * 2004-11-30 2006-06-08 Nec Corporation Electrical device assembly
JP2008192552A (en) * 2007-02-07 2008-08-21 Toyota Motor Corp Electrode
JP2008270121A (en) * 2007-04-25 2008-11-06 Sanyo Electric Co Ltd Power supply device for vehicle
JP2013235734A (en) * 2012-05-09 2013-11-21 Toyota Industries Corp Battery stack
JP2015082492A (en) * 2013-10-24 2015-04-27 株式会社豊田自動織機 Battery pack

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