JP6286141B2 - Bus bar module and power supply - Google Patents

Description

  The present invention relates to a power supply device used for a hybrid vehicle or an electric vehicle, and a bus bar module constituting the power supply device.

  For example, various vehicles such as an electric vehicle that travels using an electric motor and a hybrid vehicle that travels using both an engine and an electric motor are equipped with a power supply device as a power source of the electric motor. In such a power supply device, a plurality of batteries each having a positive electrode (hereinafter referred to as a positive electrode) at one end and a negative electrode (hereinafter referred to as a negative electrode) at the other end are alternately adjacent to each other. In this battery assembly, a bus bar module as shown in Patent Document 1 is provided so as to be superimposed on the surface on which the electrode is provided.

  The bus bar module includes a plurality of bus bars that connect the batteries of the battery assembly to each other, a plurality of wires that are connected to the batteries via the plurality of bus bars, and a wire routing for routing the plurality of wires. And a structure. When routing an electric wire, the wiring route of the electric wire is regulated by the electric wire arrangement provided in the electric wire arrangement structure.

JP 2013-4501 A

  In recent years, there is a demand for a bus bar module and a power supply device that can further reduce manufacturing costs.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a bus bar module and a power supply device capable of reducing manufacturing costs.

In order to achieve the above-described object, the bus bar module and the power supply device according to the present invention are characterized by the following points.
(1) A plurality of batteries electrically connected to a plurality of first conductors that electrically connect positive electrodes and negative electrodes between adjacent batteries of the batteries so that the batteries are connected in series. First wire of
A wire housing portion having a bowl-shaped wire wiring groove portion that houses the plurality of first electric wires, and a lid portion that covers the wire wiring groove portion so as to close a groove opening of the wire wiring groove portion; A wire arrangement in which a plurality of locking holes arranged along the longitudinal direction of the wire accommodation portion are formed in the wire accommodation portion;
The battery assembly composed of the plurality of batteries is electrically connected to a second conductor that is electrically connected to either one of the total positive electrode and the total negative electrode, and is routed along the longitudinal direction of the wire housing portion. A second electric wire;
It has a latching part which can be engaged with the latching hole, and is assembled to the wire arrangement body by engaging the latching part with the latching hole in a state where the second electric wire is accommodated. , A cable clamp separate from the wire arrangement,
Equipped with a,
The locking holes are a pair of locking holes provided at corresponding positions of the bottom wall of the electric wire routing groove and the lid, and the pair of locking holes are in the longitudinal direction of the electric wire housing portion. Are formed side by side along the
The cable clamp is formed in a substantially U shape and has a locking portion at both ends, and the locking portion engages with each of the pair of locking holes, thereby being assembled to the wire routing body. ,
The cable clamp is formed by two hinged members, and the locking portion is formed at the tip of each of the two members.
about.
( 2 ) In a power supply device comprising: a battery assembly composed of a plurality of batteries; and a bus bar module that is attached to the battery assembly so as to be electrically connected to each other.
The bus bar module described in (1) above is provided as the bus bar module.

In the bus bar module configured as described in (1) above, the second electric wire is accommodated in the cable clamp, the engaging portion of the cable clamp is engaged with the engaging hole of the electric wire accommodating portion, and assembled to the electric wire routing body. A 2nd electric wire can be supported and wired along the electric wire accommodating part which accommodated 1 electric wire. Further, since the cable clamp can be engaged with a plurality of locking holes arranged along the longitudinal direction of the electric wire housing portion and assembled at an arbitrary position in the longitudinal direction of the electric wire housing portion, the second electric wire can be routed freely. The degree can be increased.
By the way, when the diameter of a 2nd electric wire is changed, it is necessary to change a cable clamp to the magnitude | size according to the diameter of a 2nd electric wire. In this case, in the conventional bus bar module in which the cable clamp is integrally formed with the electric wire arrangement body, it is necessary to form the cable clamp using a different mold in order to change the shape of the cable clamp. Moreover, when changing the support position and the number of support locations of a 2nd electric wire, it is necessary to change the shaping | molding position and number of shaping | molding of the cable clamp in the longitudinal direction of an electric wire accommodating part. Also in this case, in the conventional bus bar module in which the cable clamp is provided integrally with the electric wire arrangement body, it is necessary to mold using different molds.
As described above, in the conventional structure in which the cable clamp is provided integrally with the electric wire arrangement body, it is necessary to form a dedicated electric wire arrangement body having a different shape in accordance with a change in the shape, arrangement, or number of the cable clamps. Therefore, it is necessary to produce dies that respectively mold the whole of the electric wire arrangements having different shapes, and the production cost increases due to the production cost of the dies.
Moreover, in the conventional structure which provided the cable clamp integrally with respect to the electric wire arrangement body, when forming an electric wire arrangement body using a metal mold | die, a cover part is formed in the molding location of the cable clamp in a longitudinal direction. I can't. For this reason, an exposed portion that is not blocked by the lid portion is formed at the cable clamp molding portion in the longitudinal direction in the wire routing groove portion. As a result, the first electric wire protrudes from the groove opening at the exposed portion of the electric wire routing groove, and the protruding portion of the first electric wire is not protected and may be damaged and short-circuited.
On the other hand, in the bus bar module configured as described above (1), since the electric cable routing body and the cable clamp are configured separately, only the shape of the cable clamp can be obtained when the diameter of the second electric wire is changed. It can respond by changing. That is, since it is not necessary to change the shape of the electric cable arrangement, it is possible to reduce the cost for making a new mold.
Moreover, in the bus bar module having the configuration (1), since the plurality of locking holes are formed side by side along the longitudinal direction of the electric wire housing portion, the support position of the second electric wire, the change in the number of support points, and the like can be performed. Accordingly, when it is desired to change the attachment position and the number of attachments of the cable clamp, the attachment position and the number of attachments can be changed without changing the shape of the wire arrangement. In addition, since the cable routing body and the cable clamp are configured separately, it is possible to employ a structure in which the entire cable routing groove is covered with a lid, and the first wire protrudes from the cable routing groove and is damaged. , Can prevent problems such as short circuit.
For this reason, according to the bus bar module having the configuration (1), it is possible to provide a bus bar module that can further reduce the manufacturing cost and can reliably protect the wired wires.
In the bus bar module having the above configuration ( 1 ), the locking holes are a pair of locking holes provided at corresponding positions on the bottom wall and the lid of the wire routing groove, and the pair of locking holes The holes are formed side by side along the longitudinal direction of the electric wire housing portion. Further, the cable clamp is formed in a substantially U shape, has a locking portion at both ends, and the locking portion engages with each of the pair of locking holes, whereby the cable clamp is assembled to the wire routing body. As a result, the cable clamp can be easily assembled to the cable routing body by engaging the locking portion of the cable clamp with the locking hole of the bottom wall of the wire routing groove and the lid, and the second wire can be routed. can do. For this reason, according to the bus bar module having the above-described configuration ( 1 ), it is possible to provide a bus bar module in which the wiring operation is facilitated while further reducing the manufacturing cost.
Further, in the bus bar module having the above configuration ( 1 ), the cable clamp is formed by two hinged members, and a locking portion is formed at the tip of each of the two members. Thereby, in the state which has arrange | positioned the 2nd electric wire between two members, the said 2 member is rotated by a hinge coupling | bond part, and the latching part of each of two members is the bottom wall and cover part of an electric wire routing groove part The second electric wire can be routed by assembling the cable clamp to the electric wire arrangement body very easily. For this reason, according to the bus bar module having the above-described configuration ( 1 ), it is possible to provide a bus bar module in which the wiring operation is further facilitated while the manufacturing cost is further reduced.
According to the power supply device having the above configuration ( 2 ), it is possible to further reduce the manufacturing cost for the same reason as described above, and to provide a power supply device that can reliably protect the wired wires. it can.

  ADVANTAGE OF THE INVENTION According to this invention, the bus bar module and power supply device which can further reduce manufacturing cost can be provided.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a perspective view showing a power supply device according to the present embodiment. FIG. 2 is a plan view of a bus bar module provided in the power supply device shown in FIG. FIG. 3 is an enlarged plan view of a part of the bus bar module. FIG. 4 is a perspective view of a part of the wire routing structure that constitutes the wire routing structure of the bus bar module according to the first embodiment. FIG. 5 is a cross-sectional view of the wire routing body and the cable clamp. FIG. 6 is a perspective view of a part of the cable routing body and the cable clamp. FIG. 7 is a cross-sectional view of the electric wire arrangement body and the cable clamp during the assembly of the cable clamp to the electric wire arrangement body. 8A and 8B are diagrams showing a bus bar module shown as a comparative example. FIG. 8A is a plan view of the entire bus bar module, and FIG. 8B is a part of the bus bar module in a state where a power cable is routed. It is a top view. FIG. 9 is a diagram showing an electric wire arrangement structure of a bus bar module shown as a comparative example, and FIG. 9A is a cross-sectional view of the electric wire arrangement body and the cable clamp in the middle of supporting the power cable, FIG. FIG. 3 is a cross-sectional view of a cable arrangement and a cable clamp that supports a power cable. FIG. 10 is a schematic plan view of a part of a bus bar module shown as a comparative example. FIG. 11 is a cross-sectional view of an electric wire arrangement body and a cable clamp constituting the bus bar module according to the second embodiment. FIG. 12 is a perspective view of a part of the cable routing body and the cable clamp that constitute the cable routing structure of the bus bar module according to the second embodiment, and FIG. FIG. 12B is a diagram illustrating a state before the clamp is assembled, and FIG. 12B is a diagram illustrating a state in which the cable clamp is engaged with the electric wire arrangement body. FIG. 13 is a cross-sectional view of the electric cable arrangement and the cable clamp in the middle of supporting the power cable in the bus bar module according to the second embodiment. FIG. 14 is a cross-sectional view of the cable routing body and the cable clamp that constitute the cable routing structure of the bus bar module according to the third embodiment. FIG. 15 is a cross-sectional view of the electric wire arrangement structure of the bus bar module according to the third embodiment in which the cable clamp is engaged with the electric wire arrangement body. FIG. 16 is a cross-sectional view of the electric cable routing body and the cable clamp in the middle of supporting the power cable in the bus bar module according to the third embodiment.

  Hereinafter, a bus bar module and a power supply device according to the present embodiment will be described with reference to the drawings. FIG. 1 is a perspective view showing a power supply device according to the present embodiment. FIG. 2 is a plan view of a bus bar module provided in the power supply device shown in FIG. FIG. 3 is an enlarged plan view of a part of the bus bar module. FIG. 4 is a perspective view of a part of the wire routing structure that constitutes the wire routing structure of the bus bar module according to the first embodiment. FIG. 5 is a cross-sectional view of the electric cable arrangement and the cable clamp according to the first embodiment. FIG. 6 is a perspective view of a part of the cable routing body and the cable clamp. FIG. 7 is a cross-sectional view of the electric wire arrangement body and the cable clamp during the assembly of the cable clamp to the electric wire arrangement body. For convenience of explanation, in each drawing, an arrow X, an arrow Y, and an arrow Z are used to indicate the arrangement direction of each member. These arrow X, arrow Y, and arrow Z are orthogonal to each other.

(First embodiment)
First, the first embodiment will be described. A power supply device 10 shown in FIG. 1 includes a battery assembly 2 and a bus bar module 1 attached to the battery assembly 2 so as to overlap therewith. The power supply device 10 is mounted and used in 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.

  The battery assembly 2 is composed of a plurality of batteries 20 arranged in a line along one direction (the arrow X direction in FIG. 1) and fixed to each other. Each battery 20 includes a rectangular parallelepiped battery main body 21 and a pair of electrodes 22 and 23 provided to project from one end and the other end of one surface of the battery main body 21. One electrode 22 of the pair of electrodes 22 and 23 is the positive electrode 22, and the other electrode 23 is the negative electrode 23. The pair of electrodes 22 and 23 are each formed in a cylindrical shape from a conductive metal. Each battery 20 has a surface on which the pair of electrodes 22 and 23 of the battery body 21 are provided in the same direction (upward in FIG. 1), and the battery bodies 21 of adjacent batteries 20 are in contact with each other. The positive electrode 22 of the battery 20 and the negative electrode 23 of another battery 20 adjacent to the one battery 20 are alternately adjacent to each other (that is, along the arrow X direction, the positive electrode 22, the negative electrode 23, the positive electrode 22, and the negative electrode 23). , ..., in order).

  The bus bar module 1 connects the plurality of batteries 20 described above in series. As shown in FIGS. 2 and 3, the bus bar module 1 includes a bus bar (first conductor) 3, a voltage detection terminal 4, an electric wire (first electric wire) 5, an electric wire routing structure 6, and a connection terminal ( A second conductor) 7 and a power cable (second electric wire) 74.

  The bus bar 3 is attached to the positive electrode 22 and the negative electrode 23 of the batteries 20 adjacent to each other in the battery assembly 2 to connect the batteries 20 in series. The bus bar 3 is obtained by, for example, pressing a conductive metal plate, and a pair of the positive electrode 22 and the negative electrode 23 of the battery 20 adjacent to each other is passed through a substantially rectangular plate-like metal plate. Holes 3a are provided. The pair of holes 3 a are arranged along the longitudinal direction of the bus bar 3 at the same interval as the positive electrode 22 and the negative electrode 23 of the battery 20 adjacent to each other. The bus bar 3 is attached to the battery 20 by screwing a nut (not shown) to the positive electrode 22 and the negative electrode 23 that are passed through the hole 3a, and is electrically connected to the positive electrode 22 and the negative electrode 23. Connected to.

  The voltage detection terminal 4 is disposed so as to overlap the corresponding bus bar 3 and is connected to the positive electrode 22 and the negative electrode 23 of the battery 20 adjacent to each other via the bus bar 3. The voltage detection terminal 4 is obtained by, for example, pressing a conductive metal plate, and includes a bus bar connection portion 41 and a wire attachment portion 42.

  The bus bar connection portion 41 is a portion that is overlapped with the bus bar 3 and is electrically connected to the bus bar 3, and is formed in a substantially square plate shape, and has a single hole 41a at the center thereof. Yes. The hole 41 a is overlapped with one of the pair of holes 3 a of the bus bar 3, and the positive electrode 22 or the negative electrode 23 of the battery 20 is passed therethrough. The bus bar connection portion 41 is attached to the battery 20 with the nut while being superimposed on the bus bar 3.

  The electric wire attachment portion 42 is a substantially rectangular plate-like piece portion extending in parallel from one side of the bus bar connection portion 41. A pair of electric wire caulking pieces 43 for fixing a portion of the electric wire 5 covered with the insulating coating of the one end 5 </ b> A is provided at the distal end portion of the electric wire attachment portion 42. A pair of crimping pieces 44 for crimping the core wire exposed at the one end 5 </ b> A of the electric wire 5 to be electrically connected to the core wire is provided at the central portion of the wire mounting portion 42.

  One end 5 </ b> A of the electric wire 5 is attached to the voltage detection terminal 4 by a pair of electric wire caulking pieces 43 and a pair of crimping pieces 44 of the electric wire attachment portion 42. That is, the electric wire 5 is electrically connected to the voltage detection terminal 4, and is connected to the positive electrode 22 and the negative electrode 23 of each battery 20 via the bus bar 3.

  The voltage detection terminal 4 is connected to a voltage detection circuit provided in an ECU (Electronic Control Unit) (not shown) via an electric wire 5 connected to the voltage detection terminal 4. And this ECU detects the residual amount of each battery 20, a charging / discharging state, etc. based on the potential difference (voltage) with a pair of electrodes 22 and 23 in each battery 20 detected by the voltage detection circuit.

  The electric wire 5 is a well-known covered electric wire having a conductive core wire and an insulating coating covering the core wire. The electric wire 5 has an insulating coating peeled off at one end 5A thereof to expose the core wire. One end 5A of the electric wire 5 is electrically connected to the voltage detection terminal 4, and the other end 5B of the electric wire 5 is connected to a voltage detection circuit provided in an ECU (not shown).

  As shown in FIGS. 1 and 5 to 7, the wire routing structure 6 includes a wire routing body 8 and a plurality of cable clamps 9 that are separate from the wire routing body 8. . The cable clamps 9 are arranged side by side with an interval in the longitudinal direction (X direction) of the electric wire housing part 50.

  The electric wire routing body 8 includes an electric wire housing part 50, a bus bar housing part 60, a connecting groove part 68, and a connection terminal housing part 71, which are integrally formed with each other using, for example, a synthetic resin. The electric wire housing portion 50 includes an electric wire routing groove portion 64 and a lid portion 67.

  The bus bar accommodating portion 60 is configured by a substantially rectangular plate-like bottom wall 61 having substantially the same shape as the bus bar 3 and a peripheral wall portion 62 erected vertically from the periphery of the bottom wall 61. Is formed. The bottom wall 61 is provided with a pair of holes (not shown) that overlap with the pair of holes 3 a of the bus bar 3. The bus bar 3 and the voltage detection terminal 4 are sequentially stacked on the inner surface of the bottom wall 61 (that is, the surface surrounded by the peripheral wall portion 62). That is, one bus bar 3 and one voltage detection terminal 4 are accommodated inside the bus bar accommodating portion 60. The positive electrode 22 or the negative electrode 23 of each battery 20 is sequentially passed through the pair of holes in the bottom wall 61 and the hole 3 a of the bus bar 3, and either the positive electrode 22 or the negative electrode 23 is a hole of the voltage detection terminal 4. 4a is passed. The plurality of bus bar accommodating portions 60 are arranged in a line so that their longitudinal directions are along the arrangement direction (arrow X direction) of the plurality of batteries 20, and are connected to each other by a connecting member 63.

  The connection member 63 is a hinge having a semi-cylindrical shape with a C-shaped cross section and formed to be elastically deformable, and a pair of both edge portions thereof are respectively connected to opposing peripheral wall portions 62 in the bus bar accommodating portions 60 adjacent to each other. It is installed. The connecting member 63 is elastically deformed so that the distance between the adjacent bus bar accommodating portions 60 is made closer to or away from each other, thereby absorbing the shape error of each battery 20, the electric cable routing body 8, and the like. Assembling property of 10 can be improved.

  The electric wire routing groove 64 has a substantially rectangular cross-section composed of a long rectangular plate-shaped bottom wall 65 and a pair of side walls 66A and 66B that stand vertically from both edges facing the width direction of the bottom wall 65. It is formed in a U-shaped groove shape (saddle shape), and accommodates a plurality of electric wires 5 inside thereof. The electric wire routing groove portions 64 are formed such that their longitudinal directions are along the arrow X direction, and along a direction (arrow Y direction) orthogonal to the row of the plurality of bus bar accommodating portions 60 and the arrow X direction. They are arranged in parallel at intervals. A locking hole 65A is formed side by side in the arrow X direction on the bottom wall 65 of the wire routing groove portion 64.

  The connecting groove portion 68 is formed in a bowl shape, and is provided along the arrow Y direction so as to communicate the bus bar housing portion 60 and the wire routing groove portion 64. The connecting groove 68 is erected from a bottom wall 69 that connects the bottom wall 61 of the opposing bus bar accommodating portion 60 and the bottom wall 65 of the electric wire routing groove 64, and a pair of opposing edges of the bottom wall 69. And it is comprised by the pair of connection wall part 70 which connects the surrounding wall part 62 of the bus bar accommodating part 60 and the side wall 66B of the electric wire routing groove part 64 which mutually face. In the connection groove portion 68, the wire attachment portion 42 of the voltage detection terminal 4 and one end 5A of the wire 5 are disposed.

  As shown in FIG. 2, the connection terminal accommodating portion 71 is composed of a rectangular plate-like bottom wall 72 and a peripheral wall portion 73 erected vertically from the periphery of the bottom wall 72, and is formed in a substantially rectangular shape. Has been. Inside the connection terminal accommodating portion 71, there are connection terminals (LA terminal: round shape) connected to the electrodes (positive electrode 22 or negative electrode 23) of the battery 20 located at both ends of the battery 20 connected in series, which are total electrodes. (Plate terminal) 7 is accommodated. From the connection terminal accommodating portion 71, the power cable 74 connected to the connection terminal 7 is drawn out.

  The power cable 74 is a thick electric wire connected to all the electrodes, and is a well-known covered electric wire having a conductive core wire and an insulating coating covering the core wire. The power cable 74 has an insulating coating peeled off at one end 74A to expose the core wire. One end 74 </ b> A of the power cable 74 is electrically connected to the connection terminal 7. The other end 74B of the power cable 74 is an output end, and power is sent from the other end 74B to an electric motor or the like.

  As shown in FIGS. 2 to 4, the lid portion 67 is formed in a rectangular plate shape, and is put on the wire routing groove portion 64 so as to close the groove opening 64 </ b> A of the wire routing groove portion 64. The lid portion 67 has a part of one edge portion of both edge portions (long side portions) continuously connected to one side wall 66A of the wire routing groove portion 64 via a hinge 67A. Locking holes 67B are formed in the lid portion 67 side by side in the arrow X direction. In FIG. 1, the locking hole 67B is not shown.

  The locking holes 65A and 67B formed in the bottom wall 65 and the lid portion 67 of the wire routing groove portion 64 are formed at positions corresponding to each other, and the pair of locking holes 65A and 67B are formed. It is formed side by side along the longitudinal direction of the electric wire housing part 50. These locking holes 65A and 67B are formed in a rectangular shape having the same size.

  As shown in FIG. 4, the lid 67 is formed with a locking claw 98 that protrudes forward in the rotational direction when covering the wire routing groove 64 at the edge opposite to the hinge 67 </ b> A. . The locking claw 98 is formed with a claw portion 98A that protrudes outward, which is opposite to the hinge 67A. A locking plate portion 99 is formed on the outer surface of the other side wall 66 </ b> B constituting the wire routing groove portion 64 at a position corresponding to the locking claw 98. The locking plate 99 is provided with a hole 99A in which the claw 98A of the locking claw 98 can be locked. A gap is formed between the side wall 66B and the locking plate 99, and the locking claw 98 of the lid 67 can be inserted into this gap. As a result, when the lid portion 67 is put on the wire routing groove portion 64, the locking claw 98 enters the gap between the side wall 66 </ b> B and the locking plate portion 99, and the claw portion 98 </ b> A of the locking claw 98 is in the locking plate portion 99. The edge of the hole 99A is locked. Thereby, the cover part 67 is maintained in the state which block | closed the groove opening 64A of the electric wire wiring groove part 64. FIG.

  As shown in FIG. 5, the cable clamp 9 is made of a component separate from the wire routing body 8, and is assembled to the wire routing body 8 in a state where the power cable 74 is accommodated. Thereby, the power cable 74 is supported in the state wired along the longitudinal direction of the electric wire accommodating part 50. As shown in FIG. At this time, as shown in FIGS. 5 and 6, the power cable 74 is routed side by side with the wire housing portion 50 in a direction (arrow Y direction) perpendicular to the longitudinal direction of the wire housing portion 50.

  The cable clamp 9 is molded from a resin, and includes a bottom portion 80 and a pair of fixing plate portions 81 and 82 that project substantially in parallel from both ends of the bottom portion 80 in the same direction. Accordingly, the cable clamp 9 is formed in a substantially U shape in a side view, and a portion surrounded by the bottom portion 80 and the fixing plate portions 81 and 82 is a cable housing portion that is a housing space for the power cable 74. 83. The fixing plate portions 81 and 82 of the cable clamp 9 have locking portions 84 and 85 at both ends. These locking portions 84 and 85 protrude in directions close to each other, and claw portions 84A and 85A that protrude toward the bottom portion 80 are formed at the ends thereof. The locking portions 84 and 85 of the cable clamp 9 are inserted into the locking holes 65A and 67B, respectively, so that the claw portions 84A and 85A of the locking portions 84 and 85 are the edges of the locking holes 65A and 67B. Is engaged. Thereby, the cable clamp 9 is assembled to the electric cable routing body 8 in a state where the power cable 74 is accommodated in the cable accommodation portion 83.

  In order to assemble the cable clamp 9 to the wire routing body 8 and support the power cable 74 on the wire routing body 8, as shown in FIG. 6, the power cable 74 is housed in the cable housing portion 83 of the cable clamp 9. Thus, the cable clamp 9 is brought close to the electric wire housing part 50. Next, the cable clamp 9 is elastically deformed so that the locking portions 84 and 85 are separated from each other.

  In this state, as shown in FIG. 7, the cable clamp 9 is brought close to the electric wire housing portion 50, and the electric wire housing portion 50 is disposed between the locking portions 84 and 85. Then, the locking portions 84 and 85 of the cable clamp 9 are inserted into the locking holes 65A and 67B.

  In this way, the claw portions 84A and 85A of the locking portions 84 and 85 inserted into the locking holes 65A and 67B engage with the edges of the locking holes 65A and 67B. Thereby, the cable clamp 9 is assembled in the electric wire housing part 50 of the electric wire routing body 8, and the power cable 74 is supported in a state of being routed along the electric wire housing part 50.

  Thus, in the electric wire routing structure 6 of the bus bar module 1 according to the embodiment, the power cable 74 is accommodated in the cable clamp 9, and the locking portions 84 and 85 of the cable clamp 9 are locked to the electric wire storage portion 50. By engaging with the holes 65 </ b> A and 67 </ b> B and assembling to the electric wire routing body 8, the power cable 74 can be supported and routed along the electric wire accommodating portion 50 that accommodates the electric wires 5. In addition, the cable clamp 9 can be easily assembled to any position in the longitudinal direction of the wire housing portion 50 by engaging with any one of the plurality of locking holes 65A and 67B arranged along the longitudinal direction of the wire housing portion 50. Since it can do, the freedom degree of the wiring of the power cable 74 can be raised.

  Below, the effect | action and effect of the bus bar module 1 and the power supply device 10 which concern on embodiment are demonstrated.

  First, with reference to FIGS. 8-10, the electric wire wiring structure 6A of the bus bar module 1A shown as a comparative example is demonstrated. 8A and 8B are diagrams showing a bus bar module shown as a comparative example. FIG. 8A is a plan view of the entire bus bar module, and FIG. 8B is a part of the bus bar module in a state where a power cable is routed. It is a top view. FIG. 9 is a diagram showing an electric wire arrangement structure of a bus bar module shown as a comparative example, and FIG. 9A is a cross-sectional view of the electric wire arrangement body and the cable clamp in the middle of supporting the power cable, FIG. FIG. 3 is a cross-sectional view of a cable arrangement and a cable clamp that supports a power cable. FIG. 10 is a schematic plan view of a part of a bus bar module shown as a comparative example.

  The bus bar module 1A of the bus bar module 1A according to the comparative example shown in FIG. 8 to FIG. 10 is the bus bar module according to the above embodiment except that the cable clamp 9A is integrally provided on the electric wire cable 8A. 1 has the same configuration as that of FIG. 1, the same members are denoted by the same reference numerals, and description thereof is omitted.

  8A and 8B, the cable routing body 8A constituting the cable routing structure 6A of the bus bar module 1A according to the comparative example shown in FIGS. It is provided at intervals in the direction (X direction). These cable clamps 9A are provided in the electric wire housing portion 50 by being integrally formed with the electric wire routing body 8A.

  As shown in FIG. 9A, the cable clamp 9 </ b> A includes a bottom plate portion 95 extending laterally from the electric wire housing portion 50 and a lid body 96 that is hinged to the end portion of the bottom plate portion 95. ing. The front end of the lid 96 can be locked to the bottom plate portion 95. And in order to hold | maintain the power cable 74 with this cable clamp 9A, in the state which has arrange | positioned the power cable 74 on the baseplate part 95, the cover body 96 is the direction which covers the upper direction of the baseplate part 95 (FIG. 9A). The tip of the lid 96 is locked to the bottom plate portion 95 by turning in the middle arrow A direction. In this way, as shown in FIG. 9B, the power cable 74 is accommodated and held between the bottom plate portion 95 and the lid body 96, so that the power cable 74 is arranged along the electric wire accommodation portion 50. Supported in the searched state.

  By the way, when the diameter of the power cable 74 is changed, it is necessary to change the size of the cable clamp 9A. In this case, the electric wire arrangement structure 6A of the bus bar module 1A according to the comparative example having a structure in which the cable clamp 9A is provided integrally with the electric wire arrangement body 8A has to be molded using different molds. .

  Moreover, when changing the support position and the number of support locations of the power cable 74, it is necessary to change the molding position and the number of moldings of the cable clamp 9A in the longitudinal direction of the electric wire housing portion 50. Also in this case, the wire routing structure 6A of the bus bar module 1A according to the comparative example having a structure in which the cable clamp 9A is provided integrally with the wire routing body 8A must be molded using different molds. Disappear.

  As described above, in the bus bar module 1A according to the comparative example having the structure in which the cable clamp 9A is integrally provided with respect to the electric cable routing body 8A, the dedicated shape having a different shape according to the change in the shape or arrangement or number of the cable clamp 9A. Therefore, it is necessary to produce a mold for molding the entire wire arrangement 8A having different shapes, and the production cost increases due to the production cost of the mold. End up.

  Moreover, in the electric wire arrangement structure 6A of the bus bar module 1A according to the comparative example having a structure in which the cable clamp 9A is provided integrally with the electric wire arrangement body 8A, the electric wire arrangement body 8A is formed using a mold. At this time, the lid portion 67 cannot be formed at the molding location of the cable clamp 9A in the longitudinal direction. For this reason, the electric wire routing groove portion 64 is formed with an exposed portion that is not blocked by the lid portion 67 at the forming portion of the cable clamp 9A in the longitudinal direction. Then, as shown in FIG. 10, the electric wire 5 protrudes from the groove opening 64A at the exposed portion in the electric wire routing groove portion 64, and the protruding portion of the electric wire 5 may be damaged without being protected and may be short-circuited.

  In contrast to the comparative example as described above, in the electric wire arrangement structure 6 of the bus bar module 1 according to the first embodiment, the electric wire arrangement body 8 and the cable clamp 9 are configured separately. Can be dealt with by changing only the shape of the cable clamp 9. That is, since it is not necessary to change the shape of the electric wire routing body 8, the cost for making a new mold can be reduced.

  Further, since the plurality of locking holes 65A and 67B are formed side by side along the longitudinal direction of the electric wire housing portion 50, the attachment of the cable clamp 9 along with the change in the support position and the number of support locations of the power cable 74, etc. When it is desired to change the position and the number of attachments, the attachment position and the number of attachments can be changed without changing the shape of the electric cable arrangement 8. Moreover, since the electric wire routing body 8 and the cable clamp 9 are configured separately, a structure in which the entire electric wire routing groove portion 64 is covered with the lid portion 67 can be adopted, and the electric wire 5 can be removed from the electric wire routing groove portion 64. It is possible to prevent problems such as overhang, damage, and short circuit.

  For this reason, according to the bus bar module 1 </ b> A according to the first embodiment, it is possible to provide a bus bar module that can further reduce the manufacturing cost and can reliably protect the wired wires. Moreover, according to the power supply device 10 which concerns on this embodiment, for the same reason as mentioned above, the manufacturing cost can be further reduced, and the power supply device capable of reliably protecting the routed wires is provided. Can be provided.

  Moreover, in the electric wire routing structure 6 of the bus bar module 1 according to the first embodiment, the locking holes 65A and 67B are provided at positions corresponding to the bottom wall 65 and the lid portion 67 of the electric wire routing groove 64. A pair of locking holes and a pair of locking holes 65 </ b> A and 67 </ b> B are formed side by side along the longitudinal direction of the electric wire housing portion 50. Further, the cable clamp 9 is formed in a substantially U shape and has locking portions 84 and 85 at both ends, and the locking portions 84 and 85 are engaged with the pair of locking holes 65A and 67B, respectively. The electric wire arrangement body 8 is assembled. As a result, by engaging the locking portions 84 and 85 of the cable clamp 9 with the bottom wall 65 of the wire routing groove portion 64 and the locking holes 65A and 67B of the lid portion 67, the cable clamp 9 can be easily connected to the electric wire. The power cable 74 can be routed by being assembled to the routing body 8. For this reason, according to the bus bar module 1 which concerns on the said embodiment, the simplification of the wiring work of an electric wire can also be aimed at.

(Second Embodiment)
Next, a second embodiment will be described. In addition, the same structure part as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.
FIG. 11 is a cross-sectional view of an electric wire arrangement body and a cable clamp constituting the bus bar module according to the second embodiment. FIG. 12 is a perspective view of a part of the cable routing body and the cable clamp that constitute the cable routing structure of the bus bar module according to the second embodiment, and FIG. FIG. 12B is a diagram illustrating a state before the clamp is assembled, and FIG. 12B is a diagram illustrating a state in which the cable clamp is engaged with the electric wire arrangement body. FIG. 13 is a cross-sectional view of the electric cable arrangement and the cable clamp in the middle of supporting the power cable in the bus bar module according to the second embodiment.

As shown in FIG. 11, in the electric wire arrangement structure 6 </ b> B of the bus bar module 1 </ b> B according to the second embodiment, a cable clamp 9 </ b> B separate from the electric wire arrangement body 8 is provided for the electric wire arrangement body 8. Assembled.
As shown in FIG. 12, the cable clamp 9 </ b> B is provided with a hinge portion 86 at the bottom 80. In the hinge portion 86, the fixed plate portions 81 and 82 are hinged. That is, the cable clamp 9B is formed by two members including the fixed plate portions 81 and 82 that are hinge-coupled, and the fixed plate portions 81 and 82 can be rotated relative to each other at the hinge portion 86.

  In the cable clamp 9B, the locking portions 84 and 85 of the respective fixing plate portions 81 and 82 are inserted into the locking holes 65A and 67B, respectively, whereby the claw portions 84A and 85A of the locking portions 84 and 85 are obtained. Are engaged with the edges of the locking holes 65A and 67B. Thereby, the cable clamp 9 </ b> A is assembled to the electric cable routing body 8 in a state where the power cable 74 is accommodated in the cable accommodation portion 83.

  In order to assemble the cable clamp 9B to the wire routing body 8 and to support the power cable 74 on the wire routing body 8, as shown in FIG. 12, the locking portion 84 of one fixed plate portion 81 is locked to the locking hole 65A. To be engaged.

  Next, as shown in FIG. 13, the power cable 74 is arranged on one fixed plate portion 81, and the other fixed plate portion 82 is placed on one fixed plate portion 81 in the direction of arrow B in FIG. 13. Turn to. And the latching | locking part 85 of this other fixed board part 82 is inserted in the latching hole 67B, and is engaged.

  If it does in this way, claw part 85A of locking part 85 inserted in locking hole 67B will engage with the edge of locking hole 67B. Thereby, the cable clamp 9 </ b> B is assembled to the electric wire housing portion 50 of the electric wire routing body 8, and the power cable 74 is supported in a state of being routed along the electric wire housing portion 50.

  In the electric wire routing structure 6B of the bus bar module 1B, after the power cable 74 is accommodated in the cable accommodating portion 83 of the cable clamp 9B, the engaging portions 84 and 85 of the fixing plate portions 81 and 82 are engaged with the engaging holes 65A, The cable clamp 9 </ b> B may be assembled to the electric wire housing portion 50 of the electric wire routing body 8 by being inserted into the 67 </ b> B and engaged.

  Thus, according to the electric wire routing structure 6B of the bus bar module 1B according to the second embodiment, the cable clamp 9B is formed by two members including the fixed plate portions 81 and 82 that are hinged, Locking portions 84 and 85 are formed at the tips of the fixing plate portions 81 and 82, respectively. Thus, the fixed plate portions 81 and 82 are rotated by the hinge portion 86 in a state where the power cable 74 is disposed between the fixed plate portions 81 and 82, and the locking portions 84 and 85 of the fixed plate portions 81 and 82 are moved. The power cable 74 is routed very easily by assembling the cable clamp 9B to the wire routing body 8 by engaging with the bottom wall 65 of the wire routing groove 64 and the locking holes 65A and 67B of the lid 67. Can do. For this reason, according to the bus bar module 1B which concerns on 2nd Embodiment, in addition to the effect of the bus bar module 1 which concerns on 1st Embodiment, the further simplification of the wiring work of an electric wire can be aimed at.

  Moreover, according to the power supply device 10 provided with said bus bar module 1B, it is possible to further reduce the manufacturing cost for the same reason as described above, and to securely protect the wired wires. A power supply device can be provided.

  Note that the cable clamp 9B constituting the above-described electric wire routing structure 6B has a structure in which the fixing plate portions 81 and 82 are connected and integrated by the hinge portion 86. When assembling and supporting the power cable 74, the divided fixing plate portions 81 and 82 may be connected to each other and coupled.

(Third embodiment)
Next, a third embodiment will be described. In addition, the same structure part as 1st and 2nd embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.
FIG. 14 is a cross-sectional view of the cable routing body and the cable clamp that constitute the cable routing structure of the bus bar module according to the third embodiment. FIG. 15 is a cross-sectional view of the electric wire arrangement structure of the bus bar module according to the third embodiment in which the cable clamp is engaged with the electric wire arrangement body. FIG. 16 is a cross-sectional view of the electric cable routing body and the cable clamp in the middle of supporting the power cable in the bus bar module according to the third embodiment.

  As shown in FIG. 14, in the electric wire arrangement structure 6 </ b> C of the bus bar module 1 </ b> C according to the third embodiment, a cable clamp 9 </ b> C separate from the electric wire arrangement body 8 is provided for the electric wire arrangement body 8. Assembled.

  As shown in FIG. 15, the cable clamp 9 </ b> C includes fixed plate portions 101 and 102. These fixed plate portions 101 and 102 are hinged by a hinge portion 103 on one end side. That is, the cable clamp 9 </ b> C is formed by two members including the fixed plate portions 101 and 102 that are hinge-coupled, and the fixed plate portions 101 and 102 can be rotated relative to each other in the hinge portion 103.

  The fixed plate portions 101 and 102 that are hinged in this way are covered by rotating the other fixed plate portion 102 with respect to one fixed plate portion 101. Then, by covering the one fixed plate portion 101 with the other fixed plate portion 102, a cable housing portion 104 is formed between the fixed plate portions 101, 102, and the power cable 74 is connected to the cable housing portion 104. Is housed.

  One fixing plate portion 101 has a locking portion 105 at the tip which is the end opposite to the hinge coupling side. The locking portion 105 is formed with a claw portion 105A that protrudes to the side opposite to the hinge coupling side. The locking part 105 of one fixing plate part 101 of the cable clamp 9C is inserted into the locking hole 65A, and the claw part 105A of the locking part 105 is engaged with the edge of the locking hole 65A. Thereby, the cable clamp 9 </ b> C is assembled to the electric cable routing body 8 in a state where the power cable 74 is accommodated in the cable accommodation portion 104.

  The other fixing plate portion 102 is formed with a locking claw 107 that protrudes forward in the rotational direction when covering the one fixing plate portion 101 at the end opposite to the hinge coupling side. The locking claw 107 is formed with a claw portion 107A that protrudes toward the hinge coupling side. On one fixed plate portion 101, a locking plate portion 108 is formed. The locking plate portion 108 is formed with a hole portion 108A in which the claw portion 107A of the locking claw 107 can be locked. The locking plate portion 108 is disposed on the hinge coupling side with respect to the locking claw 107 of the other fixed plate portion 102. As a result, when the other fixing plate portion 102 is put on one fixing plate portion 101, the locking claw 107 enters the outside of the locking plate portion 108, and the claw portion 107 A of the locking claw 107 is moved to the locking plate portion 108. The edge of the hole 108A is locked. As a result, the one fixed plate portion 101 is maintained in a state where the other fixed plate portion 102 is covered.

  In order to assemble the cable clamp 9C to the wire routing body 8 and to support the power cable 74 on the wire routing body 8, as shown in FIG. 15, the locking portion 105 of one fixed plate portion 101 is locked to the locking hole 65A. To be engaged. As a result, the cable clamp 9 </ b> C is assembled to the electric wire housing portion 50 of the electric wire routing body 8.

  Next, as shown in FIG. 16, the power cable 74 is arranged on one fixed plate portion 101, and the other fixed plate portion 102 is placed on one fixed plate portion 101 in the direction of arrow C in FIG. 16. Turn to. Then, the claw portion 107A of the locking claw 107 of the other fixed plate portion 102 is locked in the hole portion 108A of the locking plate portion 108 of the one fixed plate portion 101. Thereby, the power cable 74 is accommodated in the cable accommodating portion 104 of the cable clamp 9 </ b> C assembled to the electric wire routing body 8, and the power cable 74 is supported in a state of being routed along the electric wire accommodating portion 50.

  In the electric cable routing structure 6C, after the power cable 74 is accommodated in the cable accommodating portion 104 of the cable clamp 9C, the engaging portion 105 of the fixing plate portion 101 is inserted into the engaging hole 65A and engaged. The cable clamp 9 </ b> C may be assembled to the electric wire housing portion 50 of the electric wire routing body 8.

  As described above, according to the electric wire routing structure 6C of the bus bar module 1C according to the third embodiment, the cable clamp 9C is formed by two members including the fixed plate portions 101 and 102 that are hinge-coupled. A power cable 74 is accommodated between the fixed plate portions 101 and 102, and one of the fixed plate portions 101 has a locking portion 105 at the end opposite to the hinge coupling side. By being engaged with the locking hole 65 </ b> A of the bottom wall 65 of the routing groove portion 64, the wire routing body 8 is assembled. As a result, the power cable 74 is accommodated between the fixed plate portions 101 and 102 and the locking portion 105 of one fixed plate portion 101 is engaged with the locking hole 65A, so that the cable clamp 9C can be easily connected to the electric wire. The power cable 74 can be routed by being assembled to the routing body 8. For this reason, according to the bus bar module 1C according to the third embodiment, in addition to the effects of the bus bar module 1 according to the first embodiment, it is possible to further facilitate the wiring work of the electric wires.

  Moreover, according to the power supply apparatus 10 provided with said bus bar module 1C, the manufacturing cost can be further reduced for the same reason as described above, and the wired wires can be reliably protected. A power supply device can be provided.

  Note that the cable clamp 9C constituting the above-described electric cable routing structure 6C has a structure in which the fixing plate portions 101 and 102 are connected and integrated by the hinge portion 103. When assembling and supporting the power cable 74, a structure in which the divided fixing plate portions 101 and 102 are connected and coupled to each other may be employed.

Hereinafter, the bus bar modules 1, 1 </ b> B, 1 </ b> C and the power supply device 10 according to the embodiment will be summarized.
(1) The bus bar modules 1, 1B, 1C according to the embodiment include a plurality of electric wires 5 (first electric wires), an electric cable routing body 8, a power cable 74 (second electric wires), and cable clamps 9, 9B, 9C. The plurality of electric wires 5 (first electric wires) are electrically connected between the positive electrode 22 and the negative electrode 23 between adjacent batteries of the plurality of batteries 20 so that the plurality of batteries 20 are connected in series. Are electrically connected to each bus bar 3 (first conductor). The wire routing body 8 includes a hook-shaped wire routing groove portion 64 that accommodates the plurality of wires 5 (first wires), and the wire routing groove portion so as to close the groove opening 64A of the wire routing groove portion 64. The electric wire accommodating part 50 which has the cover part 67 covered on 64 is provided. A plurality of locking holes 65 </ b> A and 67 </ b> B arranged along the longitudinal direction of the wire housing portion 50 are formed in the wire housing portion 50 of the wire routing body 8. The power cable 74 (second electric wire) is electrically connected to the connection terminal 7 (second conductor) that is electrically connected to either the total positive electrode or the total negative electrode of the battery assembly 2 including the plurality of batteries 20. It is wired along the longitudinal direction of the said electric wire accommodating part 50. The cable clamps 9, 9B, 9C are formed separately from the wire routing body 8, and have locking portions 84, 85, 105 that can be engaged with the locking holes 65A, 67B. In a state where the cable 74 (second electric wire) is accommodated, the engaging portions 84, 85, and 105 are engaged with the engaging holes 65A and 67B, whereby the electric wire routing body 8 is assembled.
(2) Further, in the bus bar module 1, 1 </ b> B according to the embodiment, the locking holes 65 </ b> A, 67 </ b> B are provided at a pair of positions provided at corresponding positions of the bottom wall 65 of the electric wire routing groove 64 and the lid 67. The locking holes 65 </ b> A and 67 </ b> B and the pair of locking holes 65 </ b> A and 67 </ b> B are formed side by side along the longitudinal direction of the electric wire housing portion 50. The cable clamps 9 and 9B are formed in a substantially U shape and have locking portions 84 and 85 at both ends, and the locking portions 84 and 85 are the pair of locking holes 65A and 67B. By being engaged with each other, the electric wire arrangement body 8 is assembled.
(3) Further, in the bus bar module 1B according to the embodiment, the cable clamp 9B is formed by the fixed plate portions 81 and 82 which are two hinged members, and the distal ends of the fixed plate portions 81 and 82, respectively. The locking portions 84 and 85 are formed on the top.
(4) Further, in the bus bar module 1C according to the embodiment, the cable clamp 9C is formed by the fixed plate portions 101 and 102 which are two hinged members, and one member of the fixed plate portions 101 and 102 The fixing plate portion 101 is provided with the locking portion 105 at the end opposite to the hinge coupling side, and the locking portion 105 engages with the locking hole 65A. Assembled into.
(5) In addition, the power supply device 10 according to the embodiment is attached to the battery assembly 2 composed of a plurality of batteries 20 and the battery assembly 2 so as to be electrically connected to each other. And the bus bar module 1.

  The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

1 bus bar module 1B bus bar module 1C bus bar module 2 battery assembly 3 bus bar (first conductor)
5 Electric wire (first electric wire)
6 Electric wire arrangement structure 6B Electric wire arrangement structure 6C Electric wire arrangement structure 7 Connection terminal (second conductor)
8 Electric wire arrangement body 9 Cable clamp 9B Cable clamp 9C Cable clamp 10 Power supply device 20 Battery 22 Positive electrode (total positive electrode)
23 Negative electrode (total negative electrode)
DESCRIPTION OF SYMBOLS 50 Electric wire accommodating part 64 Electric wire routing groove part 64A Groove opening 65A Locking hole 67 Cover part 67A Hinge 67B Locking hole 74 Power cable (2nd electric wire)
81 Fixed plate part (member)
82 Fixed plate part (member)
84 Locking portion 85 Locking portion 101 Fixed plate portion (member)
102 Fixed plate part (member)
105 Locking part

Claims (2)

A plurality of first conductors that are respectively electrically connected to a plurality of first conductors that electrically connect positive electrodes and negative electrodes between adjacent batteries of the plurality of batteries so that the plurality of batteries are connected in series. Electric wires,
A wire housing portion having a bowl-shaped wire wiring groove portion that houses the plurality of first electric wires, and a lid portion that covers the wire wiring groove portion so as to close a groove opening of the wire wiring groove portion; A wire arrangement in which a plurality of locking holes arranged along the longitudinal direction of the wire accommodation portion are formed in the wire accommodation portion;
The battery assembly composed of the plurality of batteries is electrically connected to a second conductor that is electrically connected to either one of the total positive electrode and the total negative electrode, and is routed along the longitudinal direction of the wire housing portion. A second electric wire;
It has a latching part which can be engaged with the latching hole, and is assembled to the wire arrangement body by engaging the latching part with the latching hole in a state where the second electric wire is accommodated. , A cable clamp separate from the wire arrangement,
Equipped with a,
The locking holes are a pair of locking holes provided at corresponding positions of the bottom wall of the electric wire routing groove and the lid, and the pair of locking holes are in the longitudinal direction of the electric wire housing portion. Are formed side by side along the
The cable clamp is formed in a substantially U shape and has a locking portion at both ends, and the locking portion engages with each of the pair of locking holes, thereby being assembled to the wire routing body. ,
The cable clamp is formed by two hinged members, and the locking portion is formed at the tip of each of the two members.
A bus bar module. In a power supply device comprising: a battery assembly composed of a plurality of batteries; and a bus bar module that is attached to the battery assembly and electrically connected to each other.
A power supply apparatus comprising the bus bar module according to claim 1 as the bus bar module.

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