JP2002184371A - Bus bar positioning jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bus bar positioning jig disusing the installation of bus bar inside a lid, and enabled to join the bus bar with an electrode without requiring much labor. SOLUTION: The bus bar positioning jig 40 comprises rings 41 of which, the outer diameter D is approximately the same with the diameter of a cell 20, the inner diameter d is approximately the same with the diameter of a positive electrode 25, and the height H is approximately the same with the height of the positive electrode 25 protruding from a lid 23, a hitching protrusion 43 to be used when rotating the ring 41 around the positive electrode, an open part 44 formed by cutting off a part of the ring 41 extending over the width bigger than the width of the first and the second bus bars 30, 35, a positive electrodes 25, a cap 50 covering the rings 41 fitted to the positive electrode 25 and negative electrodes 26, and bus bar dropping holes 53, 54, opened on the cap 50 in order to drop the first and the second bus bars 30, 35, shaped almost same with the shape of the first and the second bus bars 30, 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus bar positioning jig used for connecting a plurality of batteries with a bus bar.

[0002]

2. Description of the Related Art For example, some electric appliances have a built-in battery pack as a drive source. In this battery pack, a plurality of batteries are connected in series or in parallel by connecting a plurality of batteries with a conductor called a bus bar. Connected.

A technique for connecting a battery with a bus bar has been proposed in Japanese Patent Application Laid-Open No. Hei 6-223803, entitled "Battery Pack". According to the battery pack of this publication, by assembling the bus bar integrally with the lid of the storage case, there is no need for an operator to press the bus bar when welding the bus bar to the electrode, and the assembly time of the battery pack can be compared. Target can be shortened. The main part of this publication is shown in the following figure, and its contents will be explained. However, the signs have been re-assigned.

FIG. 15 is a plan view of a conventional battery pack. When assembling the battery pack 100, the storage case 1
A plurality of batteries 102 are stored in the case 01, and then a lid 103 is attached to the storage case 101. (... shows a plurality of bus bars) are integrally attached to the lid 103. By attaching the lid 103 to the storage case 101, the bus bars 104 ... The electrodes (positive electrode 105, negative electrode 106,
・ ・) In this state, each bus bar 1
04 are welded to the positive electrode 105 and the negative electrode 106.

By assembling the bus bars 104 to the lid 103, the bus bars 104
.. Or the negative electrode 106... Therefore, it is possible to prevent the bus bars 104.
05... And the negative electrodes 106.

[0006]

However, in the battery pack 100 disclosed in the publication, the bus bars 104 are prevented from being shifted and the bus bars 104 are held at predetermined positions. It is necessary to provide the bus bars 104..., And the shape of the lid 103 becomes complicated. in addition,
Since the lid 103 having a complicated shape is used as a constituent member of the battery pack 100, it is difficult to suppress the cost of the battery pack 100. For this reason, there has been a demand for a battery pack which does not require a bus bar inside the lid and can be joined to the electrode without any trouble.

Accordingly, an object of the present invention is to provide a bus bar positioning jig which does not require the provision of a bus bar inside the lid and can join the bus bar to the electrode without any trouble.

[0008]

In order to achieve the above object, a first aspect of the present invention is to provide a plurality of batteries each having a positive electrode and a negative electrode at both ends and a positive electrode protruding from one end. A busbar positioning jig for positioning the busbar at the joint position of the positive and negative electrodes by arranging the positive and negative electrodes flush with each other so that the electrodes are oriented in the opposite direction, and mounting the busbar at one end of the battery Thus, one end is raised to the same height as the positive electrode, and a raising member which can be removed from one end while avoiding the bus bar joined to the positive and negative electrodes, and a bus bar drop-in port which can drop the bus bar, are provided. -A positioning member for positioning the busbar drop-in port at a predetermined position when the busbar is dropped on the negative electrode, and pressing the busbar dropped into the busbar drop-in port of this positioning member. Ri constituting the positioning jig busbar and a busbar pressing member for holding the bus bar 落込 port.

Here, since the positive electrode protrudes from the end of the battery and has a small diameter, if the negative electrode is juxtaposed to the positive electrode, the bus bar spanning the positive and negative electrodes does not fit well. Therefore, the height of the raising member was set to be substantially the same as the protrusion size of the positive electrode. Therefore, the positive electrode side was raised by fitting the raising member to the positive electrode, and the positive electrode side was apparently made the same shape as the negative electrode. For this reason, the bus bar can be supported by the raising member.

[0010] In addition, the positioning member is provided with a bus bar drop-in port. Therefore, the bus bar can be positioned at a predetermined position by dropping the bus bar into the bus bar drop opening. Further, a bus bar pressing member for pressing the bus bar is provided. Therefore, the bus bar can be reliably held at the predetermined position.

In claim 2, the raising member is a ring, and the ring has an outer diameter substantially equal to the diameter of the battery, an inner diameter substantially equal to the positive electrode, and a height substantially equal to a protruding dimension of the positive electrode from one end. It is characterized in that a ring main body is formed, and the ring main body is provided with a clue projection used for turning around the positive electrode, and a cutout opening is formed in the ring main body with a width larger than the width of the bus bar.

The raising member is a ring, and a notch opening is formed in the ring. Therefore, after welding the bus bar to the electrode, the raising member can be easily removed from the battery by turning the raising member around the positive electrode so that the notch opening is aligned with the bus bar. For this reason, the raising member can be used repeatedly. Further, the ring of the raising member is provided with a clue projection. Therefore, by grasping the clue projection, the raising member can be easily turned around the positive electrode.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of a battery pack according to the present invention. In the battery pack 10, the casing 11 is formed in a substantially rectangular cylindrical shape, and the lower end 12
The lower end 14 of the casing 11 is closed by the lower lid 14 by attaching the lower lid 14 to the lower claws 14a, and the electrodes of the plurality of batteries 20 are reversed in the casing 11. And the positive electrode 25 and the negative electrode 26 of the adjacent batteries 20 are connected to the first busbar (busbar) 3.
0, 30 and the positive electrode 25 of the other batteries 20, 20
And a second bus bar (bus bar) 35,
35, and the first and second busbars 30, 30, 3
Lead wires 34, 34, 38, 38 are respectively connected to the upper and lower casings 5, 35, 35, and the upper lid 15 is placed on the upper end 13 of the casing 11 as shown by arrows, so that the locking claws 15a of the upper lid 15 are formed.
Are locked in the locking grooves 13a... Of the upper end portion 13 of the casing, and the upper end portion 13 of the casing 11 is closed by the upper lid 15.

The battery 20 is provided with a positive electrode 25 and a negative electrode 26 at both ends of a cylindrical body 21, respectively, and the positive electrode 25 is projected from one end 23. The battery 20 will be described in more detail. The outer wall of the cylindrical body 21 is composed of a bottomed cylinder 22 and a lid (one end) 23 for closing the opening of the bottomed cylinder 22, and at least the bottom surface of the bottomed cylinder 22 is a negative electrode 26. A projection having a smaller diameter than the bottomed cylinder 22 is projected from the lid 23, and this projection is used as the positive electrode 25.

The first bus bar 30 bifurcates both ends 31, 32 of the substantially rectangular plate, and has downward projections 31a for connecting to the positive electrode 25 and the negative electrode 26, respectively.
, 32a (see FIG. 5 (b)), a projection 33 is provided at the center, and a lead wire 34 is connected to the projection 33. The second bus bar 35 branches one end 36 into two branches, and forms a downward projection (not shown) on each branch piece for connection to the positive electrode 25 or the negative electrode 26.
7 is bent substantially at a right angle, and a lead wire 38 is connected to the other end 37.

Hereinafter, the positive electrode 2 of the battery pack 10 shown in FIG.
The busbar positioning jig used when joining (welding) the first and second busbars 30 and 35 to the negative electrode 5 and the negative electrode 26 will be described in detail.

FIG. 2 is an exploded perspective view of the bus bar positioning jig (first embodiment) according to the present invention. The bus bar positioning jig 40 has a plurality of batteries 20 arranged in such a manner that the electrodes are opposite to each other.
, The first bus bars 30, 30 are passed between the adjacent positive electrode 25 and negative electrode 26, and the second bus bar 35, 30 is passed to the other positive electrode 25 and negative electrode 26.
35, and the first and second busbars 30, 30, 35,
35 is connected to a positive electrode 25 by a welder 65 (shown in FIG. 5).
And a jig used for welding to the negative electrodes 26.

The busbar positioning jig 40 is mounted on one end (lid) 23 of the battery 20 to raise the height to the same height as the positive electrode 25 and to join the first busbars 30, 30 joined to the positive electrode 25 and the negative electrode 26. A ring (raising member) 41 that can be removed from the lid 23 while avoiding it, and the ring 4
1. A cap (positioning member) 50 that can be placed on the positive electrode 25 and the negative electrode 26 and that positions the first and second bus bars 30, 30, 35, 35 at predetermined positions of the ring 41, the positive electrode 25, and the negative electrode 26. The first and second busbar entrances (busbar entrances) 53 of the cap 50,
A busbar pressing member 6 for holding the first and second busbars 30, 30, 35, 35 dropped into 53, 54, 54 in the first and second busbar dropouts 53, 53, 54, 54.
It consists of 0.

The ring 41 has an outer diameter D substantially equal to the diameter of the lid 23 and an inner diameter d substantially equal to that of the positive electrode 25 and has a positive electrode 25 from the lid 23.
, A substantially C-shaped ring main body 42 formed at a height H1 substantially the same as the protrusion dimension of the positive electrode 25, a clue projection 43 used to turn the ring main body 42 around the positive electrode 25, and first and second bus bars 30, 35. And a notch opening 44 in which a notch is formed in the ring main body 42 with a width W2 larger than the width W1.

The cap 50 is a member that covers the positive electrode 25 of the battery 20, the ring 41 fitted to the positive electrode 25, and the negative electrode 26 adjacent to the positive electrode 25 in a lump. The cap 50 forms the plate 51 into a rectangular shape slightly larger than the outer frame of the upper end portion 13 of the casing 11.
1 is a member formed so as to cover the upper end portion 13 of the casing 11 by including front, rear, left and right bent pieces 52a, 52b, 52c, 52d on the front, rear, left and right sides, respectively.

The cap 50 is connected to the first bus bar inlet 5
3 and 53 and a second busbar drop-in port 54.
The first bus bar drop-in port 53 is an opening that is opened in substantially the same shape as the first bus bar 30 to drop the first bus bar 30. The second bus bar drop-in port 54 is an opening which is opened in substantially the same shape as the second bus bar 35 in order to drop the second bus bar 35.

The first and second bus bars 30, 30, 35,
35 to the first and second bus bar entrances 53 and 5, respectively.
3, 54, 54, the first and second busbars 30, 30, 35, 35 are connected to the ring 41, the positive electrode 2
5 and the negative electrode 26 can be positioned at predetermined positions.

The cap 50 has lead wires 34, 34
, A second opening 56 for dropping the lead wires 38, 38, and an insertion port 57 for inserting the clue projection 43... Of the rings 41.
・ Provide

The busbar pressing member 60 presses the first busbars 30, 30 dropped to pass over the positive electrode 25 and the negative electrode 26 through the first busbar inlets 53, 53 against the positive electrode 25 and the negative electrode 26, and the second busbar outlets. The second bus bar 35 dropped to the positive electrode 25 or the negative electrode 26 through 54, 54,
The first bus bar 30 and the second bus bar 35 are pressed by pressing the first and second bus bars 35 against the positive electrode 25 and the negative electrode 26, respectively.

The bus bar pressing member 60 includes first and second bus bar pressing members.
The bus bar 30, 30, 35, 35 is provided with an extension portion 61 which can be placed on the bus bar 30, and a projection portion 62 projects upward from the extension portion 61. The protruding portion 62 is connected to the first bus bar 30.
When the bus bar pressing member 60 is placed on the second bus bar 35 or the second bus bar 35, the height H 2 is protruded from the upper surface of the cap 50.
Is a member in which is set.

Next, the operation of the bus bar positioning jig will be described with reference to FIGS. FIGS. 3A and 3B are explanatory diagrams of a first operation of the bus bar positioning jig (first embodiment) according to the present invention. In (a), the casing 1
1 are stored in the battery 1. Here the left battery 20
Has the positive electrode 25 facing upward, and the central battery 20 has the negative electrode 2
6, the battery 20 on the right has the positive electrode 25 arranged upward.

Next, rings 41, 41 are set around the left and right positive electrodes 25, 25 as shown by arrows. Next, the cap 50 is covered as shown by the arrow. At this time, the cue projections 43, 43 of the rings 41, 41 are inserted into the insertion ports 57, 57 of the cap 50.

In (b), the first bus bar 30 is
Drop it into the bus bar drop 53 as shown by the arrow. next,
The second bus bar 35 is dropped into the second bus bar entrance 54 as shown by the arrow. By inserting the clue projection 43 of the ring 41 into the insertion opening 57 of the cap 50, the notch opening 44 of the ring 41 is separated from the first bus bar 30 and the second buzz bar 35 as shown in FIG. Position.

Here, the height H1 (shown in FIG. 2) of the ring 41 is set to be substantially the same as the protrusion size of the positive electrode 25. Therefore, by placing the ring 41 on the positive electrode 25 side, the ring 41 can be arranged flush with the positive electrode 25. Therefore, the negative electrode 26 adjacent to the positive electrode 25 and the positive electrode 2
5 can be raised by the ring 41 so as to be flush with the positive and negative electrodes 25 and 26.

Therefore, the positive electrode 25 was apparently made to have the same shape as the negative electrode 26. Therefore, the first bus bar 30 is connected to the ring 41
Since the first bus bar 30 can be supported on the positive and negative electrodes 25 and 26, the first bus bar 30 can be properly and reliably mounted. The second bus bar 35 is also supported by the ring 41, so that it can be reliably mounted on the positive electrode 25.

Further, the first and second bus bar entrances 53,
By dropping the first and second busbars 30 and 35 into the respective 54, the first and second busbars 30 and 35 can be positioned at predetermined positions.

FIGS. 4A and 4B are views for explaining a second operation of the bus bar positioning jig (first embodiment) according to the present invention. In (a), the first and second bus bars 30, 3
The bus bar pressing members 60, 60 are placed as shown by the arrows from above.

In (b), the left and right bus bar pressing members 60 protrude from the cap 50. By applying a pressing force to the left bus bar pressing member 60 as shown by a white arrow, both ends 31, 32 of the first bus bar 30 are connected to the positive electrode 25.
Or the negative electrode 26. Further, by applying a pressing force to the right bus bar pressing member 60 as shown by a white arrow,
One end 36 of the second bus bar 35 is pressed against the positive electrode 25.
As a result, the first and second busbars 30 and 35 can be easily and reliably set at the predetermined positions without any trouble, even if they are not fixed to the lid as in the prior art.

Next, the left welder 65 for welding is brought into contact with one end 31 of the first bus bar 30 as shown by an arrow, and the central welder 65 for welding is brought into contact with the first bus bar 30 as shown by an arrow.
Abuts on the other end 32. At the same time, the right welder 65 for welding contacts the one end 36 of the second bus bar 35 as shown by an arrow.

FIGS. 5A and 5B are explanatory views of a third operation of the bus bar positioning jig (first embodiment) according to the present invention, and FIG. 5B is an enlarged view of a portion b of FIG. Indicates the status.
In (a), while the left and center welders 65 and 65 are in contact with the first bus bar 30 and the left and center welders 65 and 65 are energized, both ends 31 and 32 of the first bus bar 30 are connected. Positive electrode 25 and negative electrode 2
6 is welded. In addition, one end 36 of the second bus bar 35 is welded to the positive electrode 25 by energizing the left welder 65 while the right welder 65 is in contact with the second bus bar 35.

In FIG. 3B, downward projections 31a... 32a are provided on both ends 31, 32 of the first bus bar 30.
・ Provide For this reason, both ends 31, of the first bus bar 30,
32 can be reliably connected to the positive electrode 25 and the negative electrode 26. In addition, the projections 31a,.
By connecting 2a... To the positive electrode 25 or the negative electrode 26, the first bus bar 30 contacts the positive electrode 25 or the negative electrode 26 locally. For this reason, the left and center welders 65, 6
When the power is supplied to 5, the first bus bar 30 can be reliably welded to the positive electrode 25 and the negative electrode 26. After the welding of the first and second busbars 30 and 35 is completed, the respective welders 6
Raise 5,65 as indicated by the arrow.

FIGS. 6A and 6B are diagrams for explaining a fourth operation of the bus bar positioning jig (first embodiment) according to the present invention. In (a), the bus bar pressing members 60, 60 are lifted as shown by arrows, and then the cap 50 is lifted as shown by arrows. In (b), the first and second bus bars 30, 35 are fixed by welding both ends 31, 32 of the first bus bar 30 to the positive electrode 25 and the negative electrode 26, and welding the second bus bar 35 to the positive electrode 25. Is shown.

FIGS. 7A and 7B are diagrams for explaining a fifth operation of the bus bar positioning jig (first embodiment) according to the present invention. In (a), the left ring 41 is rotated approximately 90 ° in the clockwise direction as indicated by the arrow by grasping the clue projection 43 of the left ring 41. The center ring 41 is rotated approximately 90 ° in the clockwise direction as indicated by the arrow by grasping the clue projection 43 of the center ring 41. Further, the right ring 4
1 is rotated approximately 90 ° clockwise as indicated by the arrow.

As described above, the ring 41 has
3 so that by grasping the clue projection 43,
The ring 41 can be easily turned around the positive electrode 25. Therefore, the notch opening 44 of the ring 41 can be easily fitted to the first and second bus bars 30 and 35 without any trouble.

In (b), the notch opening 44 of the left ring 41 is arranged below the first bus bar 30, and the notch opening 44 of the center ring 41 is arranged below the first bus bar 30, The notch opening 44 of the right ring 41 is arranged below the second bus bar 35.

In this state, the ring 41 is removed from the positive electrode 25 by grasping the clue projection 43 of the left ring 41 and lifting the left ring 41 as shown by the arrow.
The ring 41 is detached from the positive electrode 25 by grasping the clue projection 43 of the center ring 41 and lifting the center ring 41 as shown by the arrow. Further, the ring 41 on the right side is lifted as indicated by an arrow by grasping the clue projection 43 of the ring 41 on the right side, and thereby the ring 41 is
Remove from 5. For this reason, since the ring 41 can be used repeatedly, the battery pack 10 (shown in FIG. 1)
Cost can be reduced.

By thus removing the ring 41 from the battery 20, the joining operation of the first and second bus bars 30, 35 is completed.

By inserting the cue projection 43 of the ring 41 into the insertion port 57 of the cap 50, the configuration shown in FIG.
As shown in (a), the notch opening 44 of the ring 41 can be arranged at a position away from the first bus bar 30 or the second buzz bar 35. For this reason, the first bus bar 30 and the second
The buzz bar 35 can be reliably placed at a predetermined position.

Next, a second embodiment and a third embodiment will be described with reference to FIGS. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
FIG. 8 is a perspective view of a main part of a bus bar positioning jig (second embodiment) according to the present invention. Busbar positioning jig 7
Numeral 0 is provided with a ring (raising member) 71 instead of the ring 41 of the first embodiment, and the other configuration is the same as that of the first embodiment.

The ring 71 has an outer diameter D substantially equal to the diameter of the lid 23 and an inner diameter d substantially equal to that of the positive electrode 25.
, A substantially C-shaped ring main body 72 formed at a height H1 substantially the same as the protrusion dimension of the positive electrode 25, a clue projection 73 used to turn the ring main body 72 around the positive electrode 25, and first and second bus bars 30, 35. And a notch opening 77 in which a notch is formed in the ring main body 72 with a width W2 larger than the width W1. The ring main body 72 is the same component as the ring main body 41 of the first embodiment.

The clue projection 73 allows the projection main body 74 to penetrate the opening 74 a in the radial direction of the ring main body 72.
The stopper piece 76 is rotatably attached to the position a through a pin 75. The protrusion main body 74 is a member whose height is set so that it can be inserted into the insertion port 57 of the cap 50 and the stopper piece 76 projects upward from the cap 50 when inserted into the insertion port 57.

FIG. 9 is an explanatory view of a first operation of the bus bar positioning jig (second embodiment) according to the present invention. Ring 7
The first cue projection 73 is inserted into the insertion port 57 of the cap 50 as shown by the arrow. At this time, the notch opening 77 of the ring 71 can be arranged at a position away from the first bus bar 30 and the second buzz bar 35, that is, at a position away from the first bus bar drop-in port 53. Therefore, the ring body 72
Can be arranged at the position of the first bus bar drop-in port 53, so that the first bus bar 30 and the second buzz bar 35 can be reliably placed at the predetermined positions.

FIGS. 10 (a) and 10 (b) are explanatory diagrams of a second operation of the bus bar positioning jig (second embodiment) according to the present invention. In (a), the stopper piece 76 is rotated by 90 ° around the pin 75 and arranged sideways. Therefore,
The clue projection 73 can be prevented from falling out of the insertion port 57. Thereby, the ring 71 (shown in FIG. 9)
Can be attached to the cap 50.

In (b), the other rings 71, 7
1 is similarly attached to the cap 50. Here, ring 7
Are inserted into the insertion openings 57 of the cap 50 so that the notched openings 77 of the rings 71 are inserted into the first bus bar drop-in openings 53. , 5
3 and the second bus bar can be arranged at a position away from the drop-in port 54. For this reason, the ring main bodies 72 can be arranged at the positions of the first and second bus bar inlets 53, 53, 54, so that the first bus bar 30 and the second buzz bar 35 (shown in FIG. 2) can be connected. It can be reliably placed at a predetermined position.

FIGS. 11 (a) and 11 (b) are explanatory views of a third operation of the bus bar positioning jig (second embodiment) according to the present invention. In (a), the battery 20
・ ・Here, the left battery 20 has the positive electrode 25 arranged upward, the center battery 20 has the negative electrode 26 arranged upward, and the right battery 20 has the positive electrode 25 arranged upward.
Next, the cap 50 to which the rings 71 are attached is put on the casing 11 as shown by the arrow a. At this time, the ring 71
.. And the cap 51 are S.

In (b), by placing the cap 50 on the casing 11, the distance S between the rings 71, 71 and the cap is reduced. As a result, the ring 7
The cue projections 73, 73 of the ring 71 protrude greatly from the cap, and the stopper pieces 76, 76 of the ring 71 can be rotated so as to be vertical about the pins 75, 75.

In this state, similarly to the first embodiment, the first and second bus bars 30 and 35 are set, and the first and second bus bars 30 and 35 are set.
Bus bars 30, 35 are pressed by the bus bar pressing members 60, 60. Next, the first and second bus bars 30 and 35 are welded to the positive electrode 25 and the negative electrode 26 with the welders 65.

FIG. 12 is an explanatory view of a fourth operation of the bus bar positioning jig (second embodiment) according to the present invention. First,
After the welding of the second bus bars 30, 35 is completed, the respective welders 65, 65 are raised to the standby position. Next, after lifting and removing the bus bar pressing members 60, 60, the cap 50 is lifted and removed. Next, the rings 71... Are removed from the positive electrodes 25. Thereby, the first and second bus bars 30,
The joining operation of 35 is completed.

The bus bar positioning jig 7 of the second embodiment
0, the same effects as in the first embodiment can be obtained. In addition, the rings 71... Can be set to the respective positive electrodes 25. For this reason, the rings 71 can be set simply by putting the cap 50 on the batteries 20..., So that the work of setting the rings 71.

FIG. 13 is a perspective view of a main part of a bus bar positioning jig (third embodiment) according to the present invention. The bus bar positioning jig 80 is the ring 41 of the first embodiment.
. Are provided in place of the above, and the other configuration is the same as that of the first embodiment.

The raising plate 85 has a thickness H3 equal to that of the positive electrode 2.
5 is a substantially rectangular plate set at substantially the same height as the protrusion height of No. 5 and includes a positive electrode recess 86 that can be fitted into the positive electrode 25 of the battery 20, and a negative electrode plate that can be fitted into the negative electrode 26 of the battery 20. A recess 87 is provided. The recess 86 for the positive electrode has an inlet formed with a width substantially equal to the outer diameter of the projection of the positive electrode 25, and has a bottom formed on the positive electrode 25.
Are formed in a curved shape with substantially the same diameter as the outer diameter of the projection. The concave portion 87 for the negative electrode has an inlet formed with a width substantially equal to the outer diameter of the negative electrode 26, that is, the outer diameter of the cylindrical body 21, and a bottom formed with a curved shape substantially equal to the outer diameter of the cylindrical body 21.

The casing 81 is lowered from the upper surface of the positive electrode 25 or the upper surface of the negative electrode 26 of the battery 20 by the dimension H3 to the upper end 82.
Are different from the casing 11 of the first embodiment only in that they are formed, and the other configuration is the same as that of the casing 11. As shown in FIG. 1, the upper end 13 of the casing 11 of the first embodiment was formed at a position substantially flush with the upper surface of the positive electrode 25 and the upper surface of the negative electrode 26 of the battery 20.

By setting the raising plates 85 at the upper end 82 as shown in the figure, the upper surfaces of the raising plates 85 are brought into contact with the upper surfaces of the positive electrodes 25 and the negative electrodes 26. Can be flush. Thereby, similarly to the first embodiment, after the cap 50 is covered, the first bus bars 30, 30 can be reliably mounted on the positive electrode 25 and the negative electrode 26, and the second bus bars 88, 88 can be connected to the positive electrode 25, the negative electrode 26. Can be securely mounted. Less than,
In the same procedure as that of the first embodiment, the first bus bar 3
0, 30 are welded to the positive electrode 25 and the negative electrode 26, and the second busbars 88, 88 are welded to the positive electrode 25 and the negative electrode 26.

FIG. 14 is a view for explaining the operation of the bus bar positioning jig (third embodiment) according to the present invention. After welding the first busbars 30, 30 to the positive electrode 25 and the negative electrode 26 and welding the second busbars 88, 88 to the positive electrode 25, the negative electrode 26,
By the same procedure as that of the first embodiment, as shown in FIGS. 5B and 6, the welders 65...
Remove 0, 60 and cap 50.

Next, the left front raising plate 85 is extracted as indicated by a white arrow A, the left rear raising plate 85 is extracted as a white arrow B, and the right raising plate 85 is extracted as a white arrow C. Soup Thereby, the joining operation of the first and second bus bars 30, 30, 88, 88 is completed.

The bus bar positioning jig 8 of the third embodiment
According to 0, the same effect as in the first embodiment can be obtained, and in addition, since the raising plate 85 can be removed from the batteries 20 by simply moving the raising plate 85 in the lateral direction,
The work of removing the raising plate 85 can be performed more easily.

In the above embodiment, the example in which the ring 41 is provided with the clue projection 43 has been described, but the cue protrusion 43 may not be provided in the ring 41. Further, in the above-described embodiment, an example in which the lead wire 34 is connected to the first bus bar 30 and the lead wire 38 is connected to the second bus bar 35 and the electrodes are welded to the electrodes has been described.
It is, of course, possible to weld the electrodes 0, 35 with no lead wires to the electrodes.

[0063]

According to the present invention, the following effects are exhibited by the above configuration. In claim 1, the height of the raising member is set to be substantially the same as the height of the projection of the positive electrode. Therefore, the positive electrode side was raised by fitting the raising member to the positive electrode, and the positive electrode side was apparently made the same shape as the negative electrode. As a result, the bus bar can be supported by the raising member, and the bus bar can be stably mounted on the positive and negative electrodes.

In addition, the positioning member is provided with a bus bar drop-in port. Therefore, the bus bar can be positioned at a predetermined position by dropping the bus bar into the bus bar drop opening. Further, a bus bar pressing member for pressing the bus bar is provided. Therefore, the bus bar can be reliably held at the predetermined position. As a result, even if the bus bar is not fixed to the lid, the bus bar can be easily and reliably set at the predetermined position without any trouble.

According to a second aspect of the present invention, the raising member is a ring, and a notch opening is formed in the ring. Therefore, after welding the bus bar to the electrode, the raising member can be easily removed from the battery by turning the raising member around the positive electrode so that the notch opening is aligned with the bus bar. For this reason, since the raising member can be used repeatedly, the cost of the battery pack can be reduced.

Further, the ring of the raising member is provided with a cue projection. Therefore, by grasping the clue projection,
The raising member can be easily turned around the positive electrode. Therefore, the notch opening of the ring can be easily adjusted to the bus bar without any trouble.

[Brief description of the drawings]

FIG. 1 is a perspective view of a battery pack according to the present invention.

FIG. 2 is an exploded perspective view of a bus bar positioning jig according to the present invention (first embodiment).

FIG. 3 is a first operation explanatory view of the bus bar positioning jig (first embodiment) according to the present invention.

FIG. 4 is a second operation explanatory view of the bus bar positioning jig (first embodiment) according to the present invention.

FIG. 5 is a third operation explanatory view of the bus bar positioning jig according to the present invention (first embodiment);

FIG. 6 is a fourth operation explanatory view of the bus bar positioning jig according to the present invention (first embodiment).

FIG. 7 is a fifth operation explanatory view of the bus bar positioning jig according to the present invention (first embodiment);

FIG. 8 is an essential part perspective view of a bus bar positioning jig (second embodiment) according to the present invention.

FIG. 9 is a first operation explanatory view of a bus bar positioning jig (second embodiment) according to the present invention.

FIG. 10 is a bus bar positioning jig according to the present invention (second embodiment).
2nd action explanatory drawing of embodiment)

FIG. 11 shows a bus bar positioning jig according to the present invention (second embodiment).
(Embodiment 3) Third Embodiment

FIG. 12 is a bus bar positioning jig according to the present invention (second embodiment).
4th action explanatory diagram of the embodiment)

FIG. 13 shows a bus bar positioning jig according to the present invention (third embodiment).
Embodiment) (Embodiment) perspective view

FIG. 14 is a bus bar positioning jig according to the present invention (third embodiment);
FIG.

FIG. 15 is a plan view of a conventional battery pack.

[Explanation of symbols]

10: Battery pack, 20: Battery, 23: One end (lid), 2
5 ... Positive electrode, 26 ... Negative electrode, 30 ... Bus bar (first bus bar), 35 ... Bus bar (second bus bar), 40 ... Bus bar positioning jig, 41,71 ... Raising member (ring), 42,72 ... Ring body , 43, 73 ... cue projection, 50 ... positioning member, 53 ... first bus bar drop (bus bar drop), 54, 88 ... second bus bar drop (bus bar drop), 60 ... bus bar pressing member, 85 ...
Raising member (raising plate), D ... Diameter of ring, d
... the inner diameter of the ring, H1 ... the height of the ring.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuhisa Saito 1-10-1, Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd. (72) Inventor Kenichi Ogawa 1-4-1, Chuo, Wako City, Saitama Prefecture Shares Inside the Honda R & D Co., Ltd. (72) Inventor Takuro Koyanagi 1-4-1 Chuo, Wako-shi, Saitama Pref. F-term in Honda R & D Co., Ltd. (reference) 5H022 BB28 CC12 5H040 AA03 AT01 AY04 DD03 DD06 DD07 JJ10

Claims (2)

[Claims] 1. A plurality of batteries each having a positive electrode and a negative electrode at both ends and a positive electrode protruding from one end are prepared, and these batteries are arranged so that the electrodes are opposite to each other so that the positive and negative electrodes are flush with each other. A bus bar positioning jig for positioning and positioning the bus bar at the junction between the positive and negative electrodes, wherein the jig is mounted on one end of the battery to raise one end to the same height as the positive electrode, and to join the positive and negative electrodes A raising member that can be removed from one end while avoiding the bus bar, and a positioning member that has a bus bar drop hole that can drop the bus bar and that positions the bus bar drop hole at a predetermined position when the bus bar drops over the positive and negative electrodes. A bus bar pressing member which presses the bus bar dropped into the bus bar recess of the positioning member to hold the bus bar in the bus bar recess. A jig for positioning subbar. 2. The ring raising member is a ring having an outer diameter substantially equal to the diameter of the battery, an inner diameter substantially equal to the positive electrode, and a height substantially equal to a protruding dimension of the positive electrode from one end. The ring body is provided with a cue projection used for turning around the positive electrode, and a notch opening is formed in the ring body with a width larger than the width of the bus bar. A bus bar positioning jig according to the description.