JP5457115B2 - Battery assembly attachment - Google Patents

Description

  The present invention relates to a battery assembly mounting body that constitutes a power supply device used in a hybrid vehicle or an electric vehicle.

  For example, an electric vehicle that travels using an electric motor, a hybrid vehicle that travels using both an engine and an electric motor, and the like are equipped with the power supply device as a drive source of the electric motor. This power supply device includes, for example, a battery assembly configured by alternately stacking a plurality of batteries each provided with an electrode having a positive electrode at one end and an electrode having a negative electrode at the other end, and the battery assembly. A battery assembly attachment body (see Patent Document 1). 12 is a plan view showing a conventional battery assembly mounting body, and FIG. 13 is a perspective view of the battery assembly mounting body shown in FIG.

  The battery assembly mounting body 202 shown in FIGS. 12 and 13 electrically connects a plurality of batteries in series by electrically connecting the positive electrode and the negative electrode of the adjacent batteries of the battery assembly. A plurality of bus bars 206, a plurality of terminals 204 that are superimposed on each bus bar 206 and electrically connected to the electrodes to detect the voltage of the battery, a plurality of electric wires 205 that are electrically connected to the terminals 204, and these are accommodated And a plate 207 made of synthetic resin. The battery has a configuration in which a cylindrical positive electrode, ie, an electrode protrudes from one end of a box-shaped casing, and a cylindrical negative electrode, ie, an electrode, protrudes from the other end of the casing.

  The bus bar 206 is formed in a plate shape with a metal plate, and is provided with a pair of bus bar holes through which an electrode forming a positive electrode and an electrode forming a negative electrode of adjacent batteries are respectively passed. The bus bar 206 electrically connects the adjacent batteries to each other through a pair of bus bar holes through a positive electrode and a negative electrode of the adjacent batteries.

  The terminal 204 is obtained by subjecting a metal plate to press working or the like, and is overlapped on the bus bar 206 and electrically connected to the electrode, and an electric wire connecting portion electrically connected to the electric wire 205. 242 in an integrated manner. The electrode connecting portion 240 is formed in a plate shape and is provided with a terminal hole through which the electrode is passed. The electric wire connection part 242 has a pair of crimping pieces that crimp the core wire of the electric wire 205 and electrically connect to the core wire. The plurality of electric wires 205 are connected to a voltage detection circuit (not shown).

  The plate 207 includes a plurality of terminal accommodating portions 208 that accommodate the terminals 204 and the bus bars 206 that are stacked on each other, a plurality of hinges 282 that connect the adjacent terminal accommodating portions 208 to each other, and the plurality of batteries. An electric wire accommodating portion 209 that accommodates a plurality of electric wires 205 that are formed in a bowl shape extending along the overlapping direction and are electrically connected to each terminal 204 and that routes the plural electric wires 205 to one end side of the battery assembly. A plurality of wire lead-out portions that communicate with the inside of the terminal housing portion 208 and the inside of the wire housing portion 209 and lead each wire 205 electrically connected to each terminal 204 from the terminal housing portion 208 to the wire housing portion 209, respectively. 210 and a cover 211 that covers the opening of the electric wire housing portion 209.

  The bottom wall of the terminal accommodating portion 208 is provided with a pair of plate holes (not shown) through which the electrodes of a pair of adjacent batteries can be passed.

  The cover 211 is connected to the electric wire housing part 209 via a hinge 212 and rotates around the hinge 212 to cover the opening of the electric wire housing part 209. In addition, the cover 211 is provided with a lock claw portion 211 a that engages with a lock receiving portion 209 a provided on the outer surface of the electric wire housing portion 209 and fixes the cover 211 to the electric wire housing portion 209.

  The battery assembly mounting body 202 having the above-described configuration is assembled as follows. First, the bus bar 206, the terminal 204, the plate 207, etc. are manufactured separately. In addition, the electric wire 205 is connected to the electric wire connecting portion 242 of the terminal 204 in advance. Next, each bus bar 206 is accommodated in each terminal accommodating part 208 so that the plate hole and bus bar hole which are not shown in figure overlap. Next, the electrode connection portion 240 of each terminal 204 is overlapped on each bus bar 206 so that one of the pair of bus bar holes and the terminal hole overlap with each other, and each terminal 204 is connected to each terminal accommodating portion 208 and each wire lead-out portion 210. Accommodate. Next, after each electric wire 205 electrically connected to each electric wire connection portion 242 is accommodated in the electric wire accommodation portion 209 and all the electric wires 205 are accommodated in the electric wire accommodation portion 209, the opening of the electric wire accommodation portion 209 is covered with the cover 211. Cover with. In this way, the battery assembly mounting body 202 is assembled.

  Further, the battery assembly mounting body 202 assembled in the above-described procedure is overlapped on the battery assembly, passed through the plate hole and the bus bar hole, the plate hole, the bus bar hole, and the terminal hole. A nut is screwed to each electrode and attached to the battery assembly.

JP 2006-269104 A

  However, since the current battery assembly has increased the number of batteries with increasing voltage, the conventional battery assembly mounting body 202 described above is attached to the current battery assembly. There were the following problems. That is, as the number of batteries in the battery assembly increases, the number of wires 205 in the battery assembly mounting body 202 increases accordingly, so that the opening of the wire housing portion 209 in which a plurality of wires 205 are housed is covered. When covered with 211, there is a problem that the electric wire 205 is likely to bite.

  Then, this invention pays attention to the above problems, and it aims at providing the battery assembly attachment body which can prevent that the biting of an electric wire generate | occur | produces at the time of an assembly.

  In order to achieve the above object, the invention described in claim 1 is a battery assembly attached to a battery assembly formed by stacking a plurality of batteries so that electrodes of the plurality of batteries are arranged in a straight line. It is an attachment body, and (b) houses a plurality of terminals electrically connected to the electrodes, (b) a plurality of electric wires respectively electrically connected to the terminals, and (c) houses the plurality of terminals. A terminal accommodating portion and a plurality of electric wires formed in a bowl shape extending in the overlapping direction of the plurality of batteries and electrically connected to the respective terminals, and the plurality of electric wires are connected to one end of the battery assembly. An electric wire accommodating portion arranged on the side, the inside of the terminal accommodating portion and the inside of the electric wire accommodating portion, and the electric wires electrically connected to the terminals from the terminal accommodating portion to the electric wire accommodating portion, respectively. A plurality of wire lead-out portions that lead to (D) formed separately from the plate, and attached to the wire housing part by sliding in the opening of the wire housing part from the other end side to the one end side of the battery assembly. And a cover for covering the opening.

  The invention described in claim 2 further includes a plurality of bus bars for electrically connecting the plurality of batteries in series by electrically connecting the electrodes of the batteries adjacent to each other in the invention described in claim 1. And each said bus bar is each overlapped with each said terminal, and is accommodated in the said terminal accommodating part, It is characterized by the above-mentioned.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the battery assembly extends from an edge of the cover to an end portion of the cover located on one end side of the battery assembly. A notch formed in a concave shape on the other end side of the battery assembly and having a width that gradually decreases from one end side to the other end side of the battery assembly, and the cover is provided with the wire When sliding inside the opening of the housing portion, the plurality of electric wires come into contact with the inner surface of the notch, and the plurality of electric wires are brought close to the central portion in the width direction of the wire housing portion. It is.

  According to a fourth aspect of the present invention, in the first aspect of the first to third aspects, the electric wire housing portion may be provided upright from a bottom wall and both end portions in the width direction of the bottom wall. A pair of side walls provided and the opening located between the pair of side walls are formed in the shape of a bowl, and the wire receiving portion is formed from the center in the width direction of the bottom wall to the opening. And an inner wall extending in a plate shape along the longitudinal direction of the bottom wall, and extending from ends of the pair of side walls away from the bottom wall to face the bottom wall, and A plurality of pressing portions for pressing the cover positioned above and attaching the cover between the inner wall and the inner wall are provided.

  The invention described in claim 5 is the invention described in claim 4, wherein a plurality of the inner walls are provided at intervals along the longitudinal direction of the bottom wall, and the bottom walls of the respective inner walls are provided. A taper portion that is gradually inclined away from the bottom wall as it goes from the other end side to the one end side of the battery assembly is provided at the end portion away from the battery assembly.

  The invention described in claim 6 is the invention described in claim 4 or claim 5, wherein a plurality of the pressing portions are provided at intervals along the longitudinal direction of the bottom wall, A pair of ribs erected on the bottom wall side from both ends in the width direction of the cover are provided at the end located on one end side of the battery assembly, and the length of the bottom wall of the pair of ribs The length along the direction is larger than the interval between the pressing parts adjacent to each other.

  According to the invention described in claim 1, (b) a plurality of terminals electrically connected to the respective electrodes, (b) a plurality of electric wires respectively electrically connected to the respective terminals, and (c) the above A terminal accommodating portion that accommodates a plurality of terminals, and a plurality of electric wires that are formed in a bowl shape extending along an overlapping direction of the plurality of batteries and are electrically connected to the terminals, Each of the electric wires that are connected to one end of the battery assembly, communicated with the inside of the terminal accommodating portion and the inside of the electric wire accommodating portion, and electrically connected to the terminals are accommodated in the terminal, respectively. A plate provided with a plurality of wire lead-out portions leading from the portion to the wire housing portion; and (d) formed separately from the plate, and the other end side of the battery assembly is formed in the opening of the wire housing portion. Is slid in the direction toward the one end from Since attached to the feeder housing part has a cover for covering the opening, it is possible to provide a battery assembly mounted body can be prevented from biting the wire occurs during assembly. In addition, lock mechanisms such as a lock receiving portion and a lock claw portion provided in the conventional electric wire housing portion and cover are not necessary, and the battery assembly mounting body can be reduced in size and space can be saved.

  According to the invention described in claim 2, the battery further includes a plurality of bus bars that electrically connect the plurality of batteries in series by electrically connecting the electrodes of the batteries adjacent to each other, and each of the bus bars includes: Since each of the terminals overlaps and is accommodated in the terminal accommodating portion, it is possible to reduce the size and the space of the power supply device including the battery assembly attachment body and the battery assembly.

  According to the invention described in claim 3, the end of the cover located on one end side of the battery assembly is recessed from the edge of the cover to the other end of the battery assembly and the A notch formed so that the width gradually decreases from one end side to the other end side of the battery assembly is provided, and when the cover is slid in the opening of the wire accommodating portion, Since the plurality of wires come into contact with the inner surface of the notch and the plurality of wires are brought close to the central portion in the width direction of the wire receiving portion, the cover is attached at the same time as the wire protrudes outside the wire receiving portion. The battery assembly mounting body can be easily assembled by preventing the occurrence of biting of the electric wires during assembly, and thus can be easily assembled. Door can be.

  According to the invention described in claim 4, the electric wire housing portion is positioned between the pair of side walls, the bottom wall, the pair of side walls erected from both ends in the width direction of the bottom wall, and the pair of side walls. And is formed in the shape of a bowl by the opening, and is erected from the central portion in the width direction of the bottom wall toward the opening, and along the longitudinal direction of the bottom wall. An inner wall extending in a plate shape and an end portion of the pair of side walls away from the bottom wall so as to face the bottom wall and hold the cover positioned on the inner wall between the inner wall and the inner wall A plurality of pressing portions for attaching the cover, and the inner wall and the pressing portion hold the cover and prevent deformation, and at the same time, a plurality of electric wires are distributed on both sides of the inner wall to twist the electric wires. Prevent it from happening Door can be.

  According to the invention described in claim 5, a plurality of the inner walls are provided at intervals along the longitudinal direction of the bottom wall, and at each end of the inner walls away from the bottom wall, Since the tapered portion that is gradually inclined away from the bottom wall as it goes from the other end side to the one end side of the battery assembly is provided, it is possible to prevent the electric wire from being caught between the inner wall and the cover. .

  According to the invention described in claim 6, a plurality of the pressing portions are provided at intervals along the longitudinal direction of the bottom wall, and the end portion of the cover located on one end side of the battery assembly is provided. A pair of ribs erected on the bottom wall side from both ends in the width direction of the cover, and the lengths of the pair of ribs along the longitudinal direction of the bottom wall are adjacent to each other. Since it is formed to be larger than the interval between the holding portions, the strength of the end portion of the cover is improved, and deformation of the cover can be prevented when the cover is attached to the electric wire housing portion. Assembling property can be improved. Moreover, when attaching a cover to an electric wire accommodating part, the said cover can be prevented from floating from the opening part of an electric wire accommodating part, Therefore, the assembly | attachment property of a cover can be improved.

It is a perspective view which shows the power supply device comprised by the battery assembly attachment body which concerns on one embodiment of this invention, and the battery assembly to which this battery assembly attachment body is attached. FIG. 2 is a plan view showing the battery assembly mounting body shown in FIG. 1. It is a perspective view which shows the cover which comprises the battery assembly attachment body shown by FIG. It is a perspective view which shows the back side of the cover shown by FIG. It is explanatory drawing explaining the structure of the plate which comprises the battery assembly attachment body shown by FIG. It is sectional drawing along the AA line in FIG. It is explanatory drawing explaining the structure of the plate which comprises the battery assembly attachment body shown by FIG. It is sectional drawing along the BB line in FIG. It is a perspective view which shows a mode that the cover of the battery assembly attachment body shown by FIG. 1 is attached to an electric wire accommodating part. It is explanatory drawing explaining a mode that the cover shown by FIG. 9 brings an electric wire close to the center part of an electric wire accommodating part. It is explanatory drawing explaining a mode that the cover shown by FIG. 9 brings an electric wire near the center part of an electric wire accommodating part, and is a figure which shows the state by which the cover shown by FIG. 10 was further slid. It is a top view which shows the conventional battery assembly attachment body. FIG. 13 is a perspective view of the battery assembly mounting body shown in FIG. 12.

  A battery assembly mounting body according to an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the battery assembly attachment body 2 is attached to a battery assembly 3 to constitute a power supply device 1. The power supply device 1 is mounted on an electric vehicle that travels using an electric motor, a hybrid vehicle that travels using both an engine and an electric motor, and supplies power to the electric motor.

  As shown in FIG. 1, the battery assembly 3 includes a plurality of batteries 30 and a fixing member 33 that fixes the plurality of batteries 30 so as to overlap each other. Each battery 30 includes a rectangular battery main body 31 and a pair of electrodes 32 protruding from one end and the other end of the upper surface of the battery main body 31. Each of the pair of electrodes 32 is formed in a cylindrical shape from a conductive metal, and a screw groove is provided on the outer peripheral surface thereof. One of the pair of electrodes 32 is a positive electrode and the other is a negative electrode. Further, the plurality of batteries 30 are stacked such that the electrodes 32 are arranged in two lines on a straight line. The plurality of electrodes 32 arranged on a straight line are adjacent to each other with different poles. That is, the positive electrodes and the negative electrodes are alternately arranged in the plurality of electrodes 32 arranged on a straight line.

  1 indicates the overlapping direction of the plurality of batteries 30 and the longitudinal direction of the battery assembly 3, and the arrow X indicates the width direction of the battery assembly 3, and the arrow Y Indicates the height direction of the battery assembly 3. 1 indicates the “one end” of the battery assembly 3 in the longitudinal direction, and 3b indicates the “other end” of the battery assembly 3 in the longitudinal direction.

  Moreover, the code | symbol 13 shown in FIG. 1 has shown the power supply line. These power lines 13 are electrically connected to the electrode 32 of the battery 30 positioned at one end 3 a of the battery assembly 3 and the electrode 32 of the battery 30 positioned at the other end 3 b of the battery assembly 3, respectively.

  The battery assembly mounting body 2 is attached to the battery assembly 3 to connect the plurality of batteries 30 described above in series and detect the voltage of each battery 30. As shown in FIGS. 1 and 2, the battery assembly mounting body 2 electrically connects a plurality of batteries 30 in series by electrically connecting electrodes 32 of adjacent batteries 30, that is, a positive electrode and a negative electrode. A plurality of bus bars 6; a plurality of terminals 4 that are superimposed on each bus bar 6 and electrically connected to each electrode 32 to detect the voltage of each battery 30; and a plurality of electric wires 5 that are electrically connected to each terminal 4; It has a synthetic resin plate 7 accommodating these and a synthetic resin cover 11 formed separately from the plate 7.

  The bus bar 6 is obtained by pressing a metal plate or the like. As shown in FIG. 2, the electrodes 32 of a pair of adjacent batteries 30 are passed through the plate-like metal plate. In this configuration, a pair of bus bar holes 60 are provided. In this bus bar 6, a positive electrode 32 provided in one of a pair of adjacent batteries 30 is passed through one of a pair of bus bar holes 60, and the pair of adjacent bus bars 60 is inserted in the other of the pair of bus bar holes 60. A negative electrode 32 provided on the other side of the battery 30 is passed through to electrically connect the electrodes 32, that is, the pair of adjacent batteries 30. The bus bar 6 is fixed to the battery 30 by the nut 12 being screwed into the electrode 32 passed through the bus bar hole 60.

  The terminal 4 is obtained by subjecting a metal plate to press working or the like, and has an electrode connecting portion 40 and a wire connecting portion 42 as shown in FIG. The electrode connecting portion 40 is formed in a plate shape and is provided with one terminal hole 41 through which the electrode 32 is passed. The electrode connecting portion 40 is overlaid on the bus bar 6 with the electrode 32 passed through one of the pair of bus bar holes 60 of the bus bar 6 passing through the terminal hole 41, and is electrically connected to the bus bar 6 and the electrode 32. Is done. The terminal 4 is fixed to the battery 30 and the bus bar 6 by the nut 12 being screwed into the electrode 32 passed through the one bus bar hole 60 and the terminal hole 41. The electric wire connecting portion 42 has a pair of crimping pieces 43 that crimp the core wire of the electric wire 5 and electrically connect to the core wire.

  The electric wire 5 is a well-known covered electric wire in which a conductive core wire is covered with an insulating coating, and is a round electric wire having a round cross section. Each electric wire 5 is electrically connected at one end to the electric wire connecting portion 42, and is connected to one end side of the plate 7, that is, the battery assembly 3 by an electric wire outlet portion 10 described later of the plate 7 and an electric wire accommodating portion 9 described later. Is connected to a voltage detection circuit (not shown).

  As shown in FIG. 1, the plate 7 is formed in a substantially rectangular shape that is substantially equal to the upper surface of the battery assembly 3, and overlaps the upper surface of the battery assembly 3. As shown in FIGS. 1 and 2, the plate 7 includes a plurality of terminal accommodating portions 8 that accommodate the terminals 4 and bus bars 6 that are stacked on each other, and a plurality of terminal accommodating portions 8 that are adjacent to each other. The plurality of electric wires 5 are accommodated by accommodating a plurality of electric wires 5 which are formed in a hook shape extending along the overlapping direction of the plurality of batteries 30, that is, the arrow Z, and are electrically connected to each terminal 4. The wire 7 is routed to one end of the plate 7, that is, the one end 3 a of the battery assembly 3, and communicates with the inside of each terminal housing 8 and the inside of the wire housing 9. Each of the connected electric wires 5 has a plurality of electric wire lead-out portions 10 that guide the electric wires 5 from the respective terminal accommodating portions 8 to the electric wire accommodating portion 9.

  As shown in FIG. 2, the terminal accommodating portion 8 can fit the bus bar 6 by a bottom wall 80 for positioning the bus bar 6 on the surface and a peripheral wall 81 erected from the outer edge of the bottom wall 80. The bus bar 6 and the electrode connection part 40 of the terminal 4 stacked on the bus bar 6 are accommodated. The bottom wall 80 is provided with a pair of plate holes (not shown) through which the electrodes 32 of a pair of adjacent batteries 30 can pass. Such a plurality of terminal accommodating portions 8 are arranged along the overlapping direction of the plurality of batteries 30, that is, the arrow Z. In addition, as shown in FIG. 1, two rows in which the plurality of terminal accommodating portions 8 are arranged are provided at intervals from each other along the width direction of the plate 7, that is, the arrow X.

  As shown in FIGS. 2, 5 to 9, the wire housing portion 9 includes a bottom wall 90 extending in a rectangular plate shape in the overlapping direction of the batteries 30, that is, an arrow Z, and a bottom wall 90. Are formed in a bowl shape by a pair of side walls 91 erected from both ends in the width direction and an opening 92 positioned between the pair of side walls 91. Further, the electric wire housing portion 9 is erected from the center in the width direction of the bottom wall 90 toward the opening 92, that is, along the arrow Y, and in a plate shape along the longitudinal direction of the bottom wall 90. The plurality of extended inner walls 93 and the ends of the pair of side walls 91 that are separated from the bottom wall 90 in a plate shape in the direction of the arrow X are opposed to the bottom wall 90 and hold the cover 11 positioned on the inner wall 93. A plurality of pressing portions 94 for attaching the cover 11 to the inner wall 93 are provided. Further, as shown in FIG. 1, two electric wire accommodating portions 9 are provided at intervals from each other along the width direction of the plate 7, that is, along the arrow X.

  The plurality of inner walls 93 are provided at intervals along the longitudinal direction of the bottom wall 90. Further, at the end of each inner wall 93 away from the bottom wall 90, as shown in FIG. 6, the battery assembly 3 gradually moves away from the bottom wall 90 from the other end 3b side toward the one end 3a side. An inclined taper portion 93a is provided.

  The plurality of pressing portions 94 are spaced along the longitudinal direction of the bottom wall 90 at an end portion of the one side wall 91 away from the bottom wall 90 and an end portion of the other side wall 91 away from the bottom wall 90. It is provided with a gap.

  As shown in FIG. 5 and the like, the wire lead-out portion 10 includes a bottom wall 80a of each terminal housing portion 8 and a bottom wall 10a continuous with the bottom wall 90 of the wire housing portion 9, and a width direction of the bottom wall 10a. And a pair of side walls 10b connected to one side wall 91 of each of the terminal accommodating portions 9 and a peripheral wall 81 of each terminal accommodating portion 8. Moreover, the inside of each terminal accommodating part 8, the inside of each electric wire lead-out part 10, and the inside of the electric wire accommodating part 9 are connected. Such a wire lead-out portion 10 accommodates the wire connection portion 42 of each terminal 4 and guides each wire 5 electrically connected to the wire connection portion 42 from the terminal housing portion 8 side to the wire housing portion 9.

  As described above, the battery assembly mounting body 2 of the present invention is configured such that each bus bar 6 is overlapped with each terminal 4 and accommodated in the terminal accommodating portion 8, so that the power supply device 1 can be reduced in size and space-saving. Can be achieved.

  As shown in FIGS. 1 and 3 to 8, the cover 11 includes a cover main body 11a formed in a substantially rectangular plate shape substantially equal to the bottom wall 90 of the electric wire housing portion 9, and a battery assembly of the cover main body 11a. 3, a notch 11 b provided at an end located on the one end 3 a side, a pair of ribs 11 d provided on an end located on the one end 3 a side of the battery assembly 3 of the cover body 11 a, and a cover body 11 a A reinforcing rib 11e provided on the upper surface is integrally provided. The cover 11 is slid in the opening 92 of the wire housing portion 9 in a direction from the other end 3b side of the battery assembly 3 toward the one end 3a side, and the cover main body 11a has a plurality of inner walls 93 and a plurality of pressing portions. 94 and is attached to the electric wire housing portion 9 so as to cover the opening 92.

  The cover main body 11 a protects the plurality of electric wires 5 by positioning the plurality of electric wires 5 between the cover 11 and the bottom wall 90 of the electric wire housing portion 9 while covering the opening 92. To do.

  The notch 11b is formed to be recessed from the edge of the cover body 11a located on the one end 3a side of the battery assembly 3 to the other end 3b side of the battery assembly 3, and from the one end 3a side of the battery assembly 3 to the other end. It is formed in a substantially V shape whose width gradually decreases toward the 3b side. 7 to 9, the cover 11 is slid in the opening 92 of the wire housing portion 9 in the direction from the other end 3b side of the battery assembly 3 toward the one end 3a side. When attaching to the electric wire housing part 9, the plurality of electric wires 5 in the electric wire housing part 9 are brought into contact with the inner surface 11c of the notch 11b, and the plural electric wires 5 are placed in the center in the width direction of the electric wire housing part 9. Bring it to the department.

  The pair of ribs 11d are respectively erected on the bottom wall 90 side of the electric wire housing part 9 from both ends in the width direction of the back surface of the cover body 11a. The pair of ribs 11 d improves the strength of the end portion of the cover 11. Thereby, when attaching the cover 11 to the electric wire accommodating part 9, the deformation | transformation of the said cover 11 can be prevented and the assembly | attachment property to the electric wire accommodating part 9 of the cover 11 can be improved. As shown in FIG. 8, the length h1 along the longitudinal direction of the bottom wall 90 of the pair of ribs 11d is formed larger than the interval h2 between the pressing portions 94 adjacent to each other. Thus, when the cover 11 is attached to the electric wire housing part 9, the cover 11 can be prevented from floating from the opening 92 of the electric wire housing part 9, and the assembling property of the cover 11 to the electric wire housing part 9 can be improved. Can be improved.

  The reinforcing rib 11e is provided at the center in the width direction of the cover main body 11a and extends along the longitudinal direction of the cover main body 11a. The reinforcing rib 11e improves the strength of the cover 11 and prevents the cover 11 from being deformed.

  Then, the assembly procedure of the battery assembly attachment body 2 having the above configuration will be described. First, the bus bar 6, the terminal 4, the plate 7, the cover 11, etc. are manufactured separately. In addition, the electric wire 5 is previously crimped to the electric wire connecting portion 42 of the terminal 4.

  Next, each bus bar 6 is fitted into each terminal accommodating portion 8 of the plate 7 so that a plate hole (not shown) and the bus bar hole 60 overlap each other. That is, it accommodates. Or you may make it insert each bus bar 6 in each terminal accommodating part 8 beforehand.

  Next, the electrode connection part 40 of each terminal 4 is piled up on each bus bar 6 so that one of the pair of bus bar holes 60 and the terminal hole 41 overlap, and each terminal accommodating part 8 and each electric wire outlet part 10 are connected to each terminal. 4 is accommodated. At this time, the electric wire connection part 42 of the terminal 4 is accommodated in the electric wire lead-out part 10, whereby the electric wire 5 electrically connected to the electric wire connection part 42 is accommodated in the electric wire accommodation part 9.

  And after accommodating all the terminals 4 in the terminal accommodating part 8 and the electric wire derivation | leading-out part 10, the cover 11 is attached to the electric wire accommodating part 9, and the opening part 92 of this electric wire accommodating part 9 is covered with the cover 11. FIG. In this case, first, the end portion of the cover 11 on the side where the notch 11b is provided is positioned at the other end portion of the electric wire housing portion 9 located on the other end 3b side of the battery assembly 3, and the battery assembly 3 The cover 11 is slid into the opening 92 of the electric wire housing portion 9 along the direction from the other end 3 b side to the one end 3 a side, and the cover 11 is attached to the electric wire housing portion 9.

  Further, as the cover 11 is slid in the opening 92 of the electric wire housing part 9, the plurality of electric wires 5 in the electric wire housing part 9 are brought into contact with the inner surface 11c of the notch 11b, as shown by a one-dot chain line in FIG. As shown in FIGS. 9 and 11, the plurality of electric wires 5 are brought close to the central portion in the width direction of the electric wire housing portion 9, and the portion of the electric wires 5 protruding outside the electric wire housing portion 9 is the electric wire housing portion 9. Housed inside. Further, when the cover 11 is slid in the opening 92 of the electric wire housing portion 9, the plurality of electric wires 5 are distributed to both sides of the inner wall 93, and the electric wires 5 are prevented from being twisted. Further, since the inner wall 93 is provided with the tapered portion 93a as described above, the electric wire 5 is prevented from being caught between the inner wall 93 and the cover 11. Further, the cover 11 that is slid in the opening 92 of the electric wire housing portion 9 is provided with the pair of ribs 11d described above, and thus is smoothly slid without being lifted from the opening 92 of the electric wire housing portion 9. Thus, the battery assembly mounting body 2 is assembled.

  Further, the battery assembly mounting body 2 assembled in the above-described procedure is overlapped on the upper surface of the battery assembly 3 and each electrode 32 passed through the plate hole and the bus bar hole 60, the plate hole and the bus bar hole 60, The nut 12 is screwed to each electrode 32 passed through the terminal hole 41 and attached to the battery assembly 3.

  As described above, in the present invention, the opening 92 is attached to the wire housing portion 9 by sliding in the opening 92 of the wire housing portion 9 in the direction from the other end 3b side of the battery assembly 3 toward the one end 3a side. Since the cover 11 covering the portion 92 is provided, it is possible to prevent the electric wire 5 from being caught when the battery assembly mounting body 2 is assembled, that is, when the cover 11 is attached to the electric wire housing portion 9. Moreover, in this invention, lock mechanisms (refer FIG.12 and FIG.13), such as the lock | rock receiving part and the lock claw part which were provided in the conventional electric wire accommodating part and the cover, become unnecessary, and the battery assembly attachment body 2 is provided. Miniaturization and space saving can be achieved.

  Further, in the present invention, the end of the cover 11 is cut so that the plurality of wires 5 in the wire housing portion 9 are brought into contact with the inner surface 11 c and the plurality of wires 5 are brought close to the center portion in the width direction of the wire housing portion 9. Since the notch 11b is provided, the portion of the electric wire 5 that protrudes outside the electric wire accommodating portion 9 can be accommodated in the electric wire accommodating portion 9 at the same time when the cover 11 is attached. When the body 2 is assembled, that is, when the cover 11 is attached, it is possible to more reliably prevent the electric wire 5 from being bitten, and the battery assembly attachment body 2 can be easily assembled.

  In the present invention, since the plurality of inner walls 93 and the plurality of pressing portions 94 for attaching the cover 11 between the plurality of inner walls 93 are provided, the cover 11 is formed by the inner walls 93 and the pressing portions 94. At the same time as holding and preventing deformation, a plurality of electric wires 5 can be distributed on both sides of the inner wall 93 to prevent the electric wires 5 from being twisted. Further, since the inner wall 93 is provided with the tapered portion 93 a, it is possible to prevent the electric wire 5 from being caught between the inner wall 93 and the cover 11.

  In the present invention, since the pair of ribs 11 d is provided at the end of the cover 11, the strength of the end of the cover 11 is improved, and the cover 11 is attached when the cover 11 is attached to the wire housing portion 9. Can be prevented, and the assembling property of the cover 11 can be improved. Furthermore, in the present invention, since the length h1 of the pair of ribs 11d is formed to be larger than the interval h2 between the pressing parts 94 adjacent to each other, the cover 11 is attached when the cover 11 is attached to the wire housing part 9. Can be prevented from floating from the opening 92 of the electric wire housing part 9, and the assembling property of the cover 11 can be improved.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. Various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 2 Battery assembly attachment body 3 Battery assembly 4 Terminal 5 Electric wire 6 Bus bar 7 Plate 8 Terminal accommodating part 9 Electric wire accommodating part 10 Electric wire outlet part 11 Cover 11b Notch 11d Rib 30 Battery 32 Electrode 90 Bottom wall 91 Side wall 92 Opening part 93 Inner wall 93a Taper part 94 Holding part

Claims (6)

A battery assembly mounting body attached to a battery assembly configured by stacking the plurality of batteries so that the electrodes of the plurality of batteries are arranged in a straight line,
(A) a plurality of terminals electrically connected to each of the electrodes;
(B) a plurality of electric wires electrically connected to the respective terminals;
(C) A terminal accommodating portion that accommodates the plurality of terminals and a plurality of electric wires that are formed in a bowl shape extending along the overlapping direction of the plurality of batteries and are electrically connected to the terminals. A plurality of wires connected to one end side of the battery assembly, a wire housing portion, the inside of the terminal housing portion and the inside of the wire housing portion, and the electrical wires electrically connected to the terminals. A plurality of electric wire lead-out portions each leading from the terminal accommodating portion to the electric wire accommodating portion, and a plate,
(D) The opening is formed separately from the plate and attached to the wire receiving portion by sliding in the opening of the wire receiving portion from the other end side to the one end side of the battery assembly. A cover covering the part,
A battery assembly mounting body characterized by comprising: A plurality of bus bars that electrically connect the plurality of batteries in series by electrically connecting the electrodes of the batteries adjacent to each other; and
The battery assembly mounting body according to claim 1, wherein each of the bus bars is accommodated in the terminal accommodating portion so as to overlap with each of the terminals. At the end of the cover located on one end side of the battery assembly, a recess is formed from the edge of the cover to the other end side of the battery assembly and from one end side to the other end side of the battery assembly. A notch formed so that the width gradually decreases according to
When the cover is slid in the opening of the wire housing portion, the plurality of wires come into contact with the inner surface of the notch, and the plurality of wires are brought close to the center in the width direction of the wire housing portion. The battery assembly mounting body according to claim 1 or 2, characterized in that: The electric wire housing part is formed in a bowl shape by a bottom wall, a pair of side walls erected from both ends in the width direction of the bottom wall, and the opening located between the pair of side walls. And
An inner wall extending in the form of a plate along the longitudinal direction of the bottom wall and standing from the center in the width direction of the bottom wall to the opening in the wire housing portion, and the bottom of the pair of side walls A plurality of pressing portions that extend from the end portions away from the wall, face the bottom wall, hold the cover positioned on the inner wall, and attach the cover between the inner walls; The battery assembly mounting body according to any one of claims 1 to 3, wherein the battery assembly mounting body is provided. A plurality of the inner walls are provided at intervals along the longitudinal direction of the bottom wall; and
A taper portion that is gradually inclined away from the bottom wall as it goes from the other end side to the one end side of the battery assembly is provided at an end portion of each inner wall away from the bottom wall. The battery assembly mounting body according to claim 4. A plurality of the pressing portions are provided at intervals along the longitudinal direction of the bottom wall,
A pair of ribs erected on the bottom wall side from both ends in the width direction of the cover are provided on the end portion of the cover located on one end side of the battery assembly, and
6. The battery according to claim 4, wherein a length along the longitudinal direction of the bottom wall of the pair of ribs is formed to be larger than an interval between the pressing portions adjacent to each other. Assembly mounting body.

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