JP2019192409A - Cell device and bus bar - Google Patents

Abstract

To reduce the volume of relay sound.SOLUTION: A cell device 10 includes a relay 18 and an auxiliary bus bar 12. The relay 18 is fixed to the outer surface of a housing 13 through a vibration isolating material 21. The auxiliary bus bar 12 has a first terminal portion 27 and a second terminal portion 28. The first terminal portion 27 is connected to a contact terminal 23 of the relay 18. The second terminal portion 28 is electrically coupled to the first terminal portion 27. The second terminal portion 28 is connected to a terminal other than the contact terminal 23 at a height position different from the height position of the first terminal portion 27.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a battery device and a bus bar.

  For example, a battery device for a vehicle includes a cell and an auxiliary machine such as a relay. A bus bar is used for electrical connection between cells (see Patent Document 1), electrical connection between cells and auxiliary machines, and electrical connection between auxiliary machines.

JP 2013-012464 A

  In battery devices, it is required to reduce the relay sound generated when switching between energization and cutoff. Since the relay is mechanically connected to other components via the bus bar, the bus bar may transmit a relay sound.

  The objective of this invention made | formed in view of this situation is providing the battery apparatus and bus bar which reduce the magnitude | size of a relay sound.

In order to solve the above problems, a vehicle battery device according to a first aspect of the present invention provides:
A relay fixed to the outer surface of the housing via a vibration isolator,
A flat plate-like first terminal portion connected to the contact terminal of the relay, and a height that is electrically coupled to the first terminal portion and different from the height position of the contact terminal with respect to the surface of the housing And an auxiliary bus bar having a second terminal portion connected to a terminal other than the contact terminal at a position.

In order to solve the above problem, a bus bar according to the second aspect of the present invention is
A first flat plate portion parallel to at least the first direction; a second flat plate portion that intersects the first flat plate portion at a side of the first flat plate portion on the first direction side; and A third flat plate portion that includes at least a portion that is not directly connected to the flat plate portion and extends in a direction opposite to the first direction from any side of the second flat plate portion;
From the first flat plate portion side, in a portion other than the joining portion of the first flat plate portion and the second flat plate portion, a flat plate-like first terminal portion that is electrically coupled to the connecting portion;
From the third flat plate portion side, on a portion side other than the joint portion of the third flat plate portion and the second flat plate portion, a flat plate-like second terminal portion that is electrically coupled to the connecting portion; Is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the battery apparatus and bus bar which reduce the magnitude | size of a relay sound can be provided.

It is a perspective view which shows the external appearance of the battery apparatus which concerns on the 1st Embodiment of this invention. It is a functional block diagram which shows schematic structure of the battery apparatus of FIG. It is a top view of the battery apparatus of FIG. It is a perspective view which shows the external appearance of the 1st bus bar of FIG. It is a perspective view which shows the external appearance of the 3rd bus bar of FIG. It is a perspective view which shows the external appearance of the 1st bus bar which concerns on 2nd Embodiment. It is a perspective view which shows the external appearance of the 3rd bus bar which concerns on 2nd Embodiment. It is a perspective view which shows the external appearance of the modification of the 1st bus bar of FIG. It is a perspective view which shows the external appearance of the modification of the 3rd bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 3rd bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 3rd bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 1st bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 1st bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 1st bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 1st bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 3rd bus bar of FIG. It is a perspective view which shows the external appearance of the 2nd bus bar of FIG. It is a perspective view which shows the external appearance of the modification of the 2nd bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 2nd bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 2nd bus bar of FIG. It is a perspective view which shows the external appearance of another modification of the 2nd bus bar of FIG.

  Hereinafter, embodiments of a battery device to which the present invention is applied will be described with reference to the drawings.

  As shown in FIG. 1, the battery device 10 according to the first embodiment of the present invention includes a relay unit 11 and an auxiliary bus bar 12. Battery device 10 further includes a housing 13, a fusible link 14, and an output terminal bus bar 15.

  The relay unit 11 includes at least one relay. Specifically, the relay unit 11 includes a first relay 16 and a second relay 17. In the following description, the first relay 16 and the second relay 17 are described as the relay 18 unless otherwise distinguished. Note that the relay unit 11 may include three or more relays.

  As shown in FIG. 2, the relay 18 is connected to the assembled battery 19 in series. Specifically, the assembled battery 19, the first relay 16, and the second relay 17 are connected in series in this order. In addition, the 1st relay 16, the assembled battery 19, and the 2nd relay 17 may be connected in series in this order.

  The relay 18 switches between a cutoff state and an energized state based on the control of the controller 20. The battery device 10 stops the output of electric power by switching at least one of the first relay 16 and the second relay 17 to the cut-off state. The battery device 10 outputs power by switching the first relay 16 and the second relay 17 to the energized state.

  As shown in FIG. 1, the relay 18 is fixed to the outer surface of the housing 13 via a vibration isolating material 21. The vibration isolator 21 is made of an elastic material such as polyurethane. In order to fix the vibration isolator 21, for example, a substantially rectangular frame 22 is formed on the outer surface of the housing 13. A part of the frame 22 is formed with a notch through which a signal line connected to the coil terminal of the relay 18 or the auxiliary bus bar 12 is inserted. The antivibration material 21 has a rectangular parallelepiped shape as a whole and is fitted into the frame 22. The housing 13 fixes the relay 18 through the vibration isolating material 21 by fitting the relay 18 into the recess formed in the vibration isolating material 21.

  Specifically, the housing 13 has a substantially rectangular parallelepiped shape as a whole. The surface having the largest area on the outer surface of the housing 13 is defined as the bottom surface, and the surface opposite to the bottom surface is defined as the upper surface us. Specifically, the first relay 16 and the second relay 17 are provided on the upper surface us of the housing 13. Note that at least one of the first relay 16 and the second relay 17 may be provided on an outer surface other than the upper surface us of the housing 13.

  As shown in FIG. 3, the first relay 16 and the second relay 17 are arranged so as to be aligned along the long side direction of the upper surface us of the housing 13, for example. For example, the first relay 16 is arranged such that the direction connecting the two contact terminals 23 is perpendicular to the long side direction. For example, the second relay 17 is arranged such that the direction connecting the two contact terminals 23 is parallel to the long side direction. The first relay 16 may be arranged such that the direction connecting the two contact terminals 23 intersects the short side direction. The second relay 17 may be arranged so that the direction connecting the two contact terminals 23 intersects the short side direction.

  As shown in FIG. 1, the auxiliary bus bar 12 is connected to one contact terminal 23 of the relay 18. Specifically, the auxiliary bus bar 12 includes a first bus bar 24, a second bus bar 25, and a third bus bar 26. The first bus bar 24 electrically connects the assembled battery 19 and the first relay 16. The second bus bar 25 electrically connects the first relay 16 and the second relay 17. The third bus bar 26 electrically connects the second relay 17 and the fusible link 14.

  The auxiliary bus bar 12 is made of, for example, a material having large rigidity and conductivity such as copper or aluminum. As described below, the auxiliary machine bus bar 12 is configured by a plurality of flat plate-like portions, and the plate thickness is, for example, 1 mm to 3 mm, which can attenuate vibrations.

  The auxiliary bus bar 12 has a first terminal portion 27 and a second terminal portion 28. The first terminal portion 27 and the second terminal portion 28 are electrically coupled to each other, for example, by coupling with the connecting portion 29. The first terminal portion 27 has a flat plate shape and is connected to the contact terminal 23 of the relay 18. The second terminal portion 28 has a flat plate shape and is connected to a terminal other than the contact terminal 23 of the relay 18 at a height position different from that of the first terminal portion 27. The height position is based on the outer surface of the housing 13. Therefore, the connection position of the second terminal portion 28 with the terminal in the direction perpendicular to the plate surface of the first terminal portion 27 is different from the connection position of the first terminal portion 27 with the contact terminal 23.

  For example, the housing 13 makes the height position from the outer surface of one set of terminals connected to the auxiliary bus bar 12 different. Specifically, the housing 13 has the first relay 16 and the second relay 17 so that the height positions from the outer surfaces of the contact terminals 23 of the first relay 16 and the second relay 17 are different. Hold. Specifically, the housing 13 has the first relay so that the height positions from the outer surface of the contact terminal 23 of the first relay 16 and the first output terminal 30 of the assembled battery 19 are different. 16 is held. Specifically, the housing 13 has the second relay 17 and the fusible link 14 so that the height positions from the outer surfaces of the contact terminals 23 of the second relay 17 and the terminals of the fusible link 14 are different. Hold.

  Specifically, the first terminal portion 27 and the second terminal portion 28 are parallel to each other. In addition, the 1st terminal part 27 and the 2nd terminal part 28 do not exist on the same plane from the relationship of the connection position of the 1st terminal part 27 and the 2nd terminal part 28. FIG. Note that the first terminal portion 27 and the second terminal portion 28 may be non-parallel to each other.

  The first terminal portion 27 and the second terminal portion 28 of the first bus bar 24 are connected to one contact terminal 23 of the first relay 16 and the first output terminal 30 of the assembled battery 19, respectively. . The first terminal portion 27 and the second terminal portion 28 of the second bus bar 25 are connected to the other contact terminal 23 of the first relay 16 and the one contact terminal 23 of the second relay 17, respectively. Yes. The first terminal portion 27 and the second terminal portion 28 of the third bus bar 26 are connected to the other contact terminal 23 of the second relay 17 and one terminal of the fusible link 14, respectively. The assembled battery 19 is housed in the housing 13 together with the controller 20. The first output terminal 30 of the assembled battery 19 is exposed from a hole formed in a part of the housing 13.

  The contact terminal 23 of the relay 18, the terminal of the fusible link 14, and the first output terminal 30 of the assembled battery 19 have a planar shape. The first terminal portion 27 is in surface contact with the contact terminal 23 of the relay 18. The first bus bar 24, the second bus bar 25, and the second terminal portion 28 of the third bus bar 26 are respectively a first output terminal 30 of the assembled battery 19, a contact terminal 23 of the second relay 17, and Surface contact is made with the terminals of the fusible link 14.

  For joining the first terminal portion 27 and the contact terminal 23 of the relay 18, for example, a hole is formed in the first terminal portion 27 and the contact terminal 23. A female screw is formed at the position of the hole where the contact terminal 23 of the relay 18 is disposed on the upper surface us of the housing 13.

  The second terminal portion 28 is joined to any one of the first output terminal 30 of the assembled battery 19, the contact terminal 23 of the first relay 16, and the terminal of the fusible link 14. For example, holes are formed in the first output terminal 30 of the assembled battery 19, the contact terminal 23 of the first relay 16, and the terminal of the fusible link 14. A female screw is formed at the position of the hole where the first output terminal 30, the contact terminal 23 of the first relay 16, and the fusible link 14 are arranged on the upper surface us of the housing 13.

  In the first bus bar 24, the respective holes of the first terminal portion 27 and the second terminal portion 28 overlap one of the contact terminals 23 of the first relay 16 and the hole of the first output terminal 30 of the assembled battery 19. It is so placed. In this state, by fastening the male screw to the female screw of the housing 13 from the same direction, the first terminal portion 27 and the second terminal portion 28 are respectively connected to the one contact terminal 23 and the first relay 16. The battery pack is joined to the first output terminal 30 of the assembled battery 19. In the configuration in which the first terminal portion 27 and the second terminal portion 28 are non-parallel, the male screw from another direction is connected to the female screw of the housing 13 at the position of the first terminal portion 27 and the second terminal portion 28. As a result, the first terminal portion 27 and the second terminal portion 28 are joined to one contact terminal 23 of the first relay 16 and the first output terminal 30 of the assembled battery 19, respectively.

  In the second bus bar 25, the holes of the first terminal portion 27 and the second terminal portion 28 are respectively holes of the other contact terminal 23 of the first relay 16 and the one contact terminal 23 of the second relay 17. It is placed so as to overlap. In this state, by fastening the male screw to the female screw of the housing 13, the first terminal portion 27 and the second terminal portion 28 are respectively connected to the other contact terminal 23 and the second contact terminal 23 of the first relay 16. It is joined to one contact terminal 23 of the relay 17. In the configuration in which the first terminal portion 27 and the second terminal portion 28 are non-parallel, the male screw from another direction is connected to the female screw of the housing 13 at the position of the first terminal portion 27 and the second terminal portion 28. The first terminal portion 27 and the second terminal portion 28 are joined to the other contact terminal 23 of the first relay 16 and the one contact terminal 23 of the second relay 17, respectively.

  In the third bus bar 26, the holes of the first terminal portion 27 and the second terminal portion 28 overlap the holes of the other contact terminal 23 of the second relay 17 and one terminal of the fusible link 14. It is mounted on. In this state, the first terminal portion 27 and the second terminal portion 28 are respectively connected to the other contact terminal 23 of the second relay 17 and the fusible link by fastening the male screw to the female screw of the housing 13. 14 is joined to one terminal. In the configuration in which the first terminal portion 27 and the second terminal portion 28 are non-parallel, the male screw from another direction is connected to the female screw of the housing 13 at the position of the first terminal portion 27 and the second terminal portion 28. The first terminal portion 27 and the second terminal portion 28 are joined to the other contact terminal 23 of the second relay 17 and one terminal of the fusible link 14, respectively.

  The other terminal of the fusible link 14 is electrically connected to the first output terminal 31 of the battery device 10 by the output terminal bus bar 15. The fusible link 14 is melted by a temperature rise accompanying Joule heat when a large current is applied. The second output terminal 32 of the assembled battery 19 is electrically connected to the second output terminal 33 of the battery device 10 by the output terminal bus bar 15.

  As in the first bus bar 24 and the third bus bar 26 shown in FIGS. 4 and 5, at least a part of the connecting portion 29 of the auxiliary bus bar 12 includes a first flat plate portion 34 and a second flat plate portion 35. And a third flat plate portion 36. The 1st flat plate part 34, the 2nd flat plate part 35, and the 3rd flat plate part 36 are flat form.

  A direction parallel to the plate surfaces of the first flat plate portion 34 and the third flat plate portion 36 is defined as the first direction. Therefore, the plate surface of the first flat plate portion 34 is at least parallel to the first direction. A direction perpendicular to the first direction on the plate surface of the first flat plate portion 34 is defined as the second direction. For example, the first flat plate portion 34 is a substantially rectangular shape having sides parallel to the first direction and the second direction.

  The second flat plate portion 35 intersects the first flat plate portion 34 at any side of the first flat plate portion 34 on the first direction side. Specifically, the second flat plate portion 35 is orthogonal to the first flat plate portion 34. Accordingly, the second flat plate portion 35 extends from the side of the first flat plate portion 34 on the first direction side in the third direction perpendicular to the first direction and the second direction. The second flat plate portion 35 is, for example, a substantially rectangular shape having sides parallel to the second direction and the third direction. Specifically, the crossing position of the second flat plate portion 35 in the first flat plate portion 34 is in the vicinity of the end on the opposite side in the second direction of the side on the first direction side of the first flat plate portion 34. It is a part. Note that the second flat plate portion 35 may be inclined with respect to the first flat plate portion 34. The intersecting position of the second flat plate portion 35 in the first flat plate portion 34 may be the entire side of the first flat plate portion 34 on the first direction side.

  The third flat plate portion 36 is not directly connected to the first flat plate portion 34. The third flat plate portion 36 has at least a portion extending from one side of the second flat plate portion 35 in the direction opposite to the first direction. The third flat plate portion 36 extends in a direction opposite to the first direction from a side different from the first flat plate portion 34 in the rectangular second flat plate portion 35. Specifically, the third flat plate portion 36 is parallel to the first flat plate portion 34. The third flat plate portion 36 may be, for example, a substantially rectangular shape having sides parallel to the first direction and the second direction. Or the 3rd flat plate part 36 may be L-shaped which connected the rectangular part which has a long side in a 1st direction, and the rectangular part which has a long side in a 2nd direction.

  The first terminal portion 27 is electrically coupled to the connecting portion 29 from the first flat plate portion 34 side. The first terminal portion 27 is coupled to the connecting portion 29 at a portion other than the joint portion between the first flat plate portion 34 and the second flat plate portion 35. Specifically, the first terminal portion 27 is directly connected to the first flat plate portion 34 at the end on the second direction side of the first flat plate portion 34 existing on the same plane.

  The second terminal portion 28 is electrically coupled to the connecting portion 29 from the third flat plate portion 36 side. The second terminal portion 28 is coupled to the connecting portion 29 at a portion other than the joint portion between the third flat plate portion 36 and the second flat plate portion 35. Specifically, the second terminal portion 28 is directly connected to the third flat plate portion 36 on the side opposite to the first direction of the third flat plate portion 36 existing on the same plane. As shown in FIG. 4, in the first bus bar 24, the second terminal portion 28 is more specifically in the second direction at the end opposite to the first direction of the third flat plate portion 36. Directly connected to the third flat plate portion 36 at the end bent in the opposite direction. As shown in FIG. 5, in the third bus bar 26, more specifically, the second terminal portion 28 is the third terminal at the end on the opposite side of the first direction of the third flat plate portion 36. Directly connected to the flat plate portion 36.

  The battery device 10 according to the first embodiment as described above includes the relay 18 fixed to the outer surface of the housing 13 via the vibration isolator 21 and the first connected to the contact terminal 23 of the relay 18. The auxiliary bus bar 12 includes a second terminal portion 28 connected to a terminal other than the contact terminal 23 at a height position different from the terminal portion 27 and the first terminal portion 27. Since the relay 18 is fixed to the housing 13 via the vibration isolator 21, the battery device 10 can attenuate the vibration generated in the relay 18 when switching between the cut-off state and the energized state. Moreover, since the 1st terminal part 27 and the 2nd terminal part 28 are connected in the height position from which the battery apparatus 10 differs, the 1st terminal part 27 and the 2nd terminal part 28 are on the same plane. Compared with the structure to connect, the space | interval of the 1st terminal part 27 and the 2nd terminal part 28 along the conduction path | route of the bus bar 12 for auxiliary machines can be lengthened. Therefore, the battery device 10 can be further damped while the vibration generated by the relay 18 is transmitted to the other terminals by the auxiliary bus bar 12 which is longer than the conventional bus bar. Thus, since the battery device 10 attenuates the vibration generated by the relay 18, the magnitude of the relay sound accompanying the vibration can be reduced.

  In the battery device 10 according to the first embodiment, the auxiliary bus bar 12 includes a connecting portion 29, a flat plate-like first terminal portion 27, and a second terminal portion 28. The connecting portion 29 has a first flat plate portion 34, a second flat plate portion 35, and a third flat plate portion 36. The second flat plate portion 35 intersects the first flat plate portion 34 on the first direction side of the first flat plate portion 34. The third flat plate portion 36 includes at least a portion that is not directly connected to the first flat plate portion 34 and extends in a direction opposite to the first direction from any side of the second flat plate portion 35. With such a configuration, in the battery device 10, the first flat plate portion 34 and the third flat plate portion 36 can overlap in the first direction when viewed from the direction perpendicular to the plate surface of the first flat plate portion 34. . Therefore, in the battery device 10, the distance between the first terminal portion 27 and the second terminal portion 28 along the conduction path of the auxiliary bus bar 12 can be further increased by the overlapping length. Therefore, since the battery device 10 can attenuate the vibration at a further elongated portion, the magnitude of the relay sound accompanying the vibration can be further reduced.

  In the battery device 10 according to the first embodiment, the first flat plate portion 34 and the third flat plate portion 36 are parallel to each other. With such a configuration, in the battery device 10, the first flat plate portion 34, the second flat plate portion 35, and the third flat plate portion 36 can form a substantially bowl-shaped connection portion 29. Therefore, since the battery device 10 can attenuate the vibration at the hook-shaped bent portion of the connecting portion 29, the magnitude of the relay sound accompanying the vibration can be further reduced.

  Next, a battery device according to a second embodiment of the present invention will be described. In the second embodiment, the shapes of the first bus bar and the third bus bar are different from those of the first embodiment. The second embodiment will be described below with a focus on differences from the first embodiment. In addition, the same code | symbol is attached | subjected to the site | part which has the same structure as 1st Embodiment.

  As shown in FIGS. 6 and 7, the connecting portion 290 of the first bus bar 240 and the third bus bar 260 according to the second embodiment is the same as that of the first embodiment. The flat plate portion 35 and the third flat plate portion 360 are provided. The 1st flat plate part 34, the 2nd flat plate part 35, and the 3rd flat plate part 360 are flat form similarly to 1st Embodiment.

  The plate surface of the first flat plate portion 34 is at least parallel to the first direction, as in the first embodiment. The first flat plate portion 34 is a substantially rectangular shape having sides parallel to the first direction and the second direction, for example, as in the first embodiment.

  Similarly to the first embodiment, the second flat plate portion 35 intersects the first flat plate portion 34 at any side of the first flat plate portion 34 on the first direction side. Specifically, the second flat plate portion 35 is orthogonal to the first flat plate portion 34 as in the first embodiment. Accordingly, the second flat plate portion 35 extends from the first flat plate portion 34 in the third direction, as in the first embodiment, and has, for example, a substantially parallel side in the second direction and the third direction. It is a rectangle.

  As shown in FIG. 6, in the first bus bar 240, the intersecting position of the second flat plate portion 35 in the first flat plate portion 34 is specifically the same as in the first embodiment. 34 is a part of the side on the reverse side in the second direction of the side on the first direction side of 34. As shown in FIG. 7, the crossing position of the second flat plate portion 35 in the first flat plate portion 34 in the third bus bar 260 is specifically different from the first embodiment in the first flat plate portion. 34 is substantially the entire side on the first direction side.

  As shown in FIGS. 6 and 7, the third flat plate portion 360 is not directly connected to the first flat plate portion 34 as in the first embodiment, and from any side of the second flat plate portion 35. At least a portion extending in a direction opposite to the first direction is provided. As in the first embodiment, the third flat plate portion 360 extends in a direction opposite to the first direction from a side different from the first flat plate portion 34 in the rectangular second flat plate portion 35. . Specifically, the third flat plate portion 360 is orthogonal to the second flat plate portion 35 on the side of the second flat plate portion 35 on the second direction side.

  Unlike the first embodiment, the third flat plate portion 360 is not parallel to the first flat plate portion 34. Specifically, unlike the first embodiment, the third flat plate portion 360 is a substantially rectangular shape that is perpendicular to the first flat plate portion 34 and has sides parallel to the first direction and the third direction. is there.

  As in the first embodiment, the first terminal portion 27 is electrically coupled to the connecting portion 290 from the first flat plate portion 34 side. As in the first embodiment, the first terminal portion 27 is coupled to the connecting portion 290 at a portion other than the joint portion between the first flat plate portion 34 and the second flat plate portion 35.

  As shown in FIG. 6, the first terminal portion 27 in the first bus bar 240 is specifically different from the first embodiment, and the first flat plate portion 34 via the fourth flat plate portion 370. To join. The fourth flat plate portion 370 extends in the same direction as the second flat plate portion 35 from the side of the first flat plate portion 34 on the second direction side, specifically, in the third direction and in the second direction. It is vertical. Unlike the first embodiment, the first terminal portion 27 is not in the same plane as the first flat plate portion 34 and is parallel.

  As shown in FIG. 7, specifically, the first terminal portion 27 in the third bus bar 260 is directly connected to the first flat plate portion 34 as in the first embodiment. Unlike the first embodiment, the first terminal portion 27 is opposite to the second flat plate portion 35 from the side on the second direction side of the first flat plate portion 34, specifically, the third terminal portion 27. Extending in the opposite direction of the direction and perpendicular to the second direction.

  As shown in FIGS. 6 and 7, the second terminal portion 28 is electrically coupled to the connecting portion 290 from the third flat plate portion 360 side, as in the first embodiment. Unlike the first embodiment, the electrical coupling of the second terminal portion 28 to the connecting portion 290 is indirect. As shown in FIG. 6, in the first bus bar 240, the second terminal portion 28 is specifically connected indirectly via the sixth flat plate portion 380 and the fifth flat plate portion 390. 290. As shown in FIG. 7, specifically, in the third bus bar 260, the second terminal portion 28 is indirectly coupled to the connecting portion 290 via the seventh flat plate portion 400. As shown in FIGS. 6 and 7, the second terminal portion 28 is connected to the connecting portion 290 at a portion other than the joint portion of the second flat plate portion 35 and the third flat plate portion 360, as in the first embodiment. Join indirectly.

  As shown in FIG. 6, the fifth flat plate portion 390 in the first bus bar 240 is directly connected to the third flat plate portion 360. The fifth flat plate portion 390 extends in the reverse direction of the second direction from the side opposite to the third direction in the vicinity of the end on the reverse side of the first direction in the third flat plate portion 360. . The fifth flat plate portion 390 is perpendicular to the third direction, and is, for example, a substantially rectangular shape having sides parallel to the first direction and the second direction.

  The sixth flat plate portion 380 extends in the third direction from the side opposite to the second direction of the fifth flat plate portion 390. The sixth flat plate portion 380 is perpendicular to the second direction. The sixth flat plate portion 380 is, for example, a substantially rectangular shape having sides parallel to the first direction and the third direction. The sixth flat plate portion 380 is directly connected to the second terminal portion 28 on the side in the third direction. The second terminal portion 28 extends from the side on the third direction side of the sixth flat plate portion 380 in the direction opposite to the second direction, and is perpendicular to the third direction.

  As shown in FIG. 7, the seventh flat plate portion 400 in the third bus bar 260 extends from the side opposite to the first direction of the third flat plate portion 360 in the reverse direction of the second direction. . The seventh flat plate portion 400 is perpendicular to the first direction, and is, for example, a substantially rectangular shape having sides parallel to the second direction and the third direction. The seventh flat plate portion 400 is directly connected to the second terminal portion 28 on the side opposite to the second direction. The second terminal portion 28 extends from the side opposite to the second direction of the seventh flat plate portion 400 in the reverse direction of the first direction and is perpendicular to the second direction.

  As in the first embodiment, the battery device 10 according to the second embodiment as described above includes a relay 18 fixed to the outer surface of the housing 13 via a vibration isolator 21 and a contact point of the relay 18. The auxiliary bus bar 12 having a first terminal portion 27 connected to the terminal 23 and a second terminal portion 28 connected to a terminal other than the contact terminal 23 at a height position different from that of the first terminal portion 27. including. Therefore, since the battery device 10 according to the second embodiment also attenuates the vibration generated by the relay 18 as in the first embodiment, the magnitude of the relay sound accompanying the vibration can be reduced. Further, in the battery device 10 according to the second embodiment, the auxiliary bus bar 12 includes the first flat plate portion 34 and the sides on the first direction side of the first flat plate portion 34 as in the first embodiment. The second flat plate portion 35 intersecting the first flat plate portion 34 and the first flat plate portion 34 are not directly connected to each other and extend in a direction opposite to the first direction from either side of the second flat plate portion 35. It has the connection part 290 which has the 3rd flat plate part 360 containing at least a part, and the 1st terminal part 27 and the 2nd terminal part 28 of flat form. Therefore, similarly to the first embodiment, the battery device 10 according to the second embodiment can further reduce the magnitude of the relay sound accompanying the vibration.

  In the battery device 10 according to the second embodiment, the third flat plate portion 360 is not parallel to the first flat plate portion 34. With such a configuration, the battery device 10 according to the second embodiment is configured in the out-of-plane direction of any one of the first flat plate portion 34 to the third flat plate portion 360 that are opposed to each other in three dimensions. By elastic deformation, vibrations of various modes transmitted from the first terminal portion 27 can be further damped. As a result, in the battery device 10 according to the second embodiment, the magnitude of the relay sound that accompanies the vibration can be further reduced.

  It will be apparent to those skilled in the art that the present invention can be realized in other predetermined forms other than the above-described embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the foregoing description is illustrative and not restrictive. The scope of the invention is defined by the appended claims rather than by the foregoing description. Some of all changes that fall within the equivalent scope shall be included therein.

  For example, in the first embodiment, in the first bus bar 24 and the third bus bar 26, the third flat plate portion 36 continues in the first direction, but the present invention is not limited to such a configuration. For example, as shown in FIGS. 8 to 10, the third flat plate portion 361 may be divided in the first direction and connected by a corrugated portion 411 protruding in the opposite direction of the third direction. . According to such a configuration, the vibration generated by the relay 18 can be attenuated also in the waveform section 411, so that the magnitude of the relay sound accompanying the vibration can be further reduced.

  In the first embodiment, in the third bus bar 26, the first flat plate portion 34 is continuous in the second direction, but is not limited to such a configuration. For example, as shown in FIGS. 10 and 11, the first flat plate portion 342 may be divided in the second direction and connected by a corrugated portion 422 that protrudes in a direction opposite to the third direction. . According to such a configuration, the vibration generated by the relay 18 can be attenuated also in the waveform section 422, so that the magnitude of the relay sound accompanying the vibration can be further reduced.

  In the first embodiment and the second embodiment, as in the first bus bar 24 and the third bus bar 26, some auxiliary bus bars 12 have the first flat plate portion 34 and the third bus bar 12. The flat plate portion 36 is configured to overlap in the first direction, but may not be such a configuration. For example, as shown in FIGS. 12 to 16, it is sufficient that the first terminal portion 27 and the second terminal portion 28 have at least a configuration that is shifted in a direction parallel to each other and perpendicular to the plate surface. In such a configuration, the height positions of the first terminal portion 27 and the second terminal portion 28 with respect to the surface of the housing 13 are determined in connection to the contact terminal 23 of the relay 18 and terminals other than the contact terminal 23. Can be different.

  In the first bus bar 243 shown in FIG. 12, the first terminal portion 27 is parallel to the first direction and the second direction and is on the second direction side of the first flat plate portion 34 on the same plane. Directly connected to the first flat plate portion 34. The first flat plate portion 34 extends in the third direction perpendicular to the first direction and the second direction from the side on the first direction side in the vicinity of the end on the opposite side to the second direction. The flat plate portion 35 is directly connected. The second flat plate portion 35 is parallel to the second direction and the third direction. The second flat plate portion 35 is directly connected to the third flat plate portion 363 extending in the first direction from the side on the third direction side. The third flat plate portion 363 is directly connected to the second terminal portion 28 on the same plane at the end bent in the opposite direction of the second direction at the end on the first direction side.

  In the first bus bars 244 and 245 shown in FIGS. 13 and 14, the first terminal portion 27 is parallel to the first direction and the second direction and the first flat plate portion 344 on the same plane. The first flat plate portion 344 is directly connected to the end of the second direction side. The first flat plate portion 344 is bent in the first direction at the end opposite to the second direction. A portion of the first flat plate portion 344 that is bent and extended in the first direction is divided and connected to a corrugated portion 434 that protrudes in a third direction perpendicular to the first direction and the second direction. Yes. The first flat plate portion 344 is a second portion extending in the third direction from the side opposite to the second direction in the vicinity of the end in the first direction of the portion bent and extended in the first direction. Directly connected to the flat plate portion 354. The second flat plate portion 354 is perpendicular to the second direction. The second flat plate portion 354 is directly connected to the second terminal portion 28 extending from the end in the third direction in the opposite direction of the second direction and perpendicular to the third direction.

  In the first bus bar 246 shown in FIG. 15, unlike the first bus bar 245 shown in FIG. 14, a portion of the first flat plate portion 344 that is bent and extended in the first direction and divided. Are connected to a corrugated portion 434 raised in the third direction and a corrugated portion 422 raised in the opposite direction of the third direction.

  Note that in the third bus bar 263 shown in FIG. 16, the first terminal portion 27 extends from the side on the third direction side in the first direction perpendicular to the first terminal portion 27 and in the third direction. Directly connected to the first flat plate portion 34 perpendicular to. The first flat plate portion 34 is directly connected to the second flat plate portion 35 extending in the third direction from the side on the first direction side. The second flat plate portion 35 is directly connected to the second terminal portion 28 on the first direction in the vicinity of the end on the third direction side and the side on the second direction side perpendicular to the third direction.

  In the first embodiment and the second embodiment, the second bus bar 25 is configured such that the first terminal portion 27 and the second terminal portion 28 are displaced in a direction parallel to each other and perpendicular to the plate surface. What is necessary is just to have at least a structure. In such a configuration, the height positions of the first terminal portion 27 and the second terminal portion 28 with respect to the surface of the housing 13 are determined in connection to the contact terminal 23 of the relay 18 and terminals other than the contact terminal 23. Can be different.

  In the second bus bar 25 shown in FIG. 17, the first terminal portion 27 is directly connected to the first flat plate portion 34 on the same plane at the end on the first direction side. The first flat plate portion 34 is directly connected to the second flat plate portion 35 extending in the third direction perpendicular to the first flat plate portion 34 from the side on the first direction side. The second flat plate portion 35 is directly connected to the third flat plate portion 363 extending in the first direction from the side on the third direction side. The third flat plate portion 363 is directly connected to the second terminal portion 28 on the same plane on the side in the second direction side perpendicular to the first direction and the third direction in the vicinity of the end on the first direction side. To do.

  In such a second bus bar 25, the position of the second flat plate portion 35 in the first direction may be changed as shown in FIGS.

  In the second bus bar 25, as shown in FIG. 20, the third flat plate portion 365 is connected by a corrugated portion 411 that is divided in the first direction and protrudes in the direction opposite to the third direction. May be.

  Further, in the second bus bar 25, as shown in FIG. 21, the third flat plate portion 363 may extend in an inclined direction in which the first direction and the second direction are combined. The third flat plate portion 363 may be directly connected to the second terminal portion 28 at the end on the inclined direction side.

DESCRIPTION OF SYMBOLS 10 Battery apparatus 11 Relay part 12 Bus bar for auxiliary machines 13 Housing | casing 14 Fusible link 15 Bus bar for output terminals 16 1st relay 17 2nd relay 18 Relay 19 Battery assembly 20 Controller 21 Anti-vibration material 22 Frame 23 Contact terminal 24 , 240, 243, 244, 245, 246 First bus bar 25 Second bus bar 26, 260, 263 Third bus bar 27 First terminal portion 28 Second terminal portion 29, 290 Connecting portion 30 First of assembled battery Output terminal 31 first output terminal of battery device 32 second output terminal of battery pack 33 second output terminal of battery device 34, 342, 344 first flat plate portion 35, 354 second flat plate portion 36, 360, 361, 363, 365 Third flat plate portion 370 Fourth flat plate portion 380 Sixth flat plate portion 390 Fifth flat plate portion 400 Seventh flat plate portion 4 1 Corrugated part linking the divided third flat plate part 422 Corrugated part linking the divided first flat plate part and projecting in the direction opposite to the third direction 434 Connecting the divided first flat plate part The corrugated portion that rises in the third direction us upper surface

Claims (9)

A relay fixed to the outer surface of the housing via a vibration isolator,
A flat plate-like first terminal portion connected to the contact terminal of the relay, and a height that is electrically coupled to the first terminal portion and different from the height position of the contact terminal with respect to the surface of the housing And an auxiliary bus bar having a second terminal portion connected to a terminal other than the contact terminal at a position.
Battery device. The battery device according to claim 1,
The auxiliary bus bar includes at least a first flat plate portion parallel to the first direction, and a second flat plate that intersects the first flat plate portion at a side of the first flat plate portion on the first direction side. And a third flat plate portion that includes at least a portion that is not directly connected to the first flat plate portion and extends in a direction opposite to the first direction from any side of the second flat plate portion. And further
The first terminal portion is electrically coupled to the connecting portion from the first flat plate portion side in a portion other than the joint portion of the first flat plate portion and the second flat plate portion,
The second terminal portion is electrically coupled to the connecting portion from the third flat plate portion side at a portion side other than the third flat plate portion and the joint portion of the second flat plate portion. . A first flat plate portion parallel to at least the first direction; a second flat plate portion that intersects the first flat plate portion at a side of the first flat plate portion on the first direction side; and A third flat plate portion that includes at least a portion that is not directly connected to the flat plate portion and extends in a direction opposite to the first direction from any side of the second flat plate portion;
From the first flat plate portion side, in a portion other than the joining portion of the first flat plate portion and the second flat plate portion, a flat plate-like first terminal portion that is electrically coupled to the connecting portion;
From the third flat plate portion side, on a portion side other than the joint portion of the third flat plate portion and the second flat plate portion, a flat plate-like second terminal portion that is electrically coupled to the connecting portion; With bus bar. The bus bar according to claim 3,
The third flat plate portion is non-parallel to the first flat plate portion. In the bus bar according to claim 3 or 4,
The first terminal portion and the second terminal portion are parallel to each other. In the bus bar according to claim 3 or 4,
The first terminal portion and the second terminal portion are non-parallel. In the bus bar according to claim 3 or 5,
The first flat plate portion is directly connected to the first terminal portion on the same plane at the end of the plate surface on the second direction side perpendicular to the first direction,
The third flat plate portion is a bus bar that is directly connected to the second terminal portion on the same plane on the opposite side of the first direction. In the bus bar according to any one of claims 3 to 5,
The first flat plate portion extends in the same direction as the second flat plate portion from a side on the second direction perpendicular to the first direction on the plate surface and is perpendicular to the second direction. Coupled to the first terminal portion parallel to the first flat plate portion via the flat plate portion;
The second flat plate portion extends from the first flat plate portion in a third direction perpendicular to the first direction and the second direction,
The third flat plate portion is orthogonal to the second flat plate portion at a side on the second direction side of the second flat plate portion and is perpendicular to the first flat plate portion,
The third flat plate portion extends in the direction opposite to the second direction from the side opposite to the third direction in the vicinity of the end opposite to the first direction in the first direction and extends in the third direction. Directly connected to the vertical fifth flat plate part,
The fifth flat plate portion extends in the third direction from the side opposite to the second direction and passes through the sixth flat plate portion perpendicular to the second direction. A bus bar coupled to the second terminal portion perpendicular to In the bus bar according to any one of claims 3 to 5,
The first flat plate portion extends in a direction opposite to the second flat plate portion from a side on a second direction side perpendicular to the first direction on the plate surface and is perpendicular to the second direction. Directly connected to the first terminal,
The second flat plate portion extends from the first flat plate portion in the first direction and a third direction perpendicular to the second direction. The third flat plate portion is the second flat plate portion. The side of the flat plate portion on the second direction side is perpendicular to the second flat plate portion and perpendicular to the first flat plate portion,
The third flat plate portion extends from the side opposite to the first direction in the reverse direction of the second direction and through the seventh flat plate portion perpendicular to the first direction, A bus bar coupled to the second terminal portion perpendicular to the direction of 2.