JP2003109559A - Battery storage pack, connector having battery protection element used therein, and method for manufacturing battery storage pack - Google Patents

Abstract

(57) [Abstract] (with correction) [PROBLEMS] To improve workability in assembling a battery storage pack. SOLUTION: A battery 3 having a pair of electrode leads 6 and 7 connected to a positive electrode or a negative electrode, respectively, and a substrate 18 having a pair of battery connecting portions 20 are housed in a case body 2 and one electrode is provided. An attached portion 9 that connects the lead to one of the battery connection portions of the substrate and has a battery protection element and is attached to the battery; a lead connection portion 10 protruding from the attached portion and connected to the other electrode lead; The board connecting portion 1 protruding in the same direction as the lead connecting portion in a state of being separated from the attached portion and the lead connecting portion and connected to the other battery connecting portion of the board.
1 was provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery storage pack, a connector having a battery protection element used therein, and a method for manufacturing the battery storage pack. Specifically, a battery storage pack in which a battery and a substrate for the battery are stored in a case body,
The present invention relates to a technical field of a connector having a battery protection element used in the battery storage pack and a method for manufacturing the battery storage pack.

[0002]

2. Description of the Related Art There is a battery storage pack in which a battery, for example, a lithium ion secondary battery is stored in a case body, and such a battery storage pack is used as a battery for charging an information processing device such as a personal computer. Used.

FIG. 20 shows an example of the internal structure of a conventional battery storage pack.

The battery storage pack has a battery a and a substrate b housed in a case body (not shown), and the battery a is formed by sealing a battery body c with a cover d made of a polymer material.

One end portion of the battery a in the longitudinal direction is formed as a mount portion e formed thinner than other portions,
The first connected from the mount portion e to the positive electrode of the battery body c
Electrode lead f and second electrode lead g connected to the negative electrode
And are projected in the same direction while being separated from each other in the width direction of the battery a.

At both ends in the longitudinal direction of the substrate b, a positive electrode connecting portion and a negative electrode connecting portion (not shown) are provided separately.

The battery storage pack is manufactured by assembling the respective parts as follows.

First, one end of a positive electrode tab h made of a plate-shaped metal material is joined to the positive electrode connection part of the substrate b, and a negative electrode tab i made of a plate metal material is connected to the negative electrode connection part.
Join one end of.

Next, the other end of the positive electrode tab h is joined to one connecting portion k of the PTC element j used as a battery protection element. The PTC element j has two connection parts k and l which are projected in mutually opposite directions.

Next, one end of a relay tab m made of a plate-shaped metal material is joined to the first electrode lead f protruding from the battery a.

Subsequently, the connecting portion 1 of the PTC element j is joined to the other end of the relay tab m, and the other end of the negative electrode tab i is joined to the second electrode lead g protruding from the battery a. P
The TC element j is mounted on the mount portion e of the battery a.

After joining the respective parts as described above,
An insulating seal (not shown) is attached to a predetermined portion, and the battery a and the substrate c are housed in the case body to complete the manufacture of the battery housing pack.

[0013]

However, in the above-mentioned conventional battery storage pack, the positive electrode tab h, the negative electrode tab i, the PTC element j, the relay tab m, and other parts are provided one by one in a predetermined order. Since the parts are joined and assembled, there is a problem that the number of man-hours is large and the working time is long.

Particularly, when an attempt is made to manufacture a battery storage pack of a type in which a plurality of batteries are connected to each other and stored in a case body, each component is sequentially joined to a predetermined portion one by one as described above. If you try to assemble it, productivity will be extremely poor.

Therefore, the battery storage pack of the present invention, the connecting body having the battery protection element used therein, and the method of manufacturing the battery storage pack overcome the above-mentioned problems and improve workability in the assembly work of the battery storage pack. The challenge is to

[0016]

In order to solve the above-mentioned problems, a battery storage pack of the present invention has an attached portion which has a battery protection element and is attached to a battery, and an electrode of the other electrode which is projected from the attached portion. A lead connecting portion connected to the lead,
Provided is a connecting body constituted by a board connecting portion which is projected in the same direction as the lead connecting portion and is connected to the other battery connecting portion of the substrate while being separated from the attached portion, and the other electrode lead. Is connected to the other battery connecting portion of the substrate via a connecting body.

In order to solve the above-mentioned problems, a connection body having a battery protection element of the present invention has an attached portion to be attached to a battery having a battery protection element and an electrode lead of the other electrode protruding from the attached portion. A lead connecting portion to be connected, and a board connecting portion that is projected from the attached portion in the same direction as the lead connecting portion and is connected to the other battery connecting portion of the board while being separated from the attached portion. is there.

In order to solve the above-mentioned problems, the method of manufacturing a battery storage pack according to the present invention has an attached portion having a battery protection element, a lead connecting portion protruding from the attached portion, and a lead connecting portion from the attached portion. The above-mentioned attached portion of the connecting body consisting of the board connecting portion protruding in the same direction as the lead connecting portion in the state of being separated from the attached portion is attached to the battery, and the lead connecting portion is connected to one electrode lead Fold back together and attach the lead connecting portion and one electrode lead to the surface opposite to the surface to which the attached portion of the battery is attached, connect the substrate connecting portion of the connection body to one battery connecting portion of the substrate and the other The electrode lead of is connected to the other battery connecting portion of the substrate.

Another method of manufacturing the battery storage pack of the present invention is as follows.
In order to solve the above-mentioned problems, a mounted portion having a battery protection element, a lead connecting portion protruding from the mounted portion, and a lead connecting portion separated from the mounted portion in the same direction as the lead connecting portion Each of the attached parts of the plurality of connecting bodies consisting of the protruding board connecting part is attached to each battery, and each lead connecting part is connected to one electrode lead, and each board connecting part of the connecting body is connected to one of the board. While connecting to each battery connecting part, each other electrode lead is connected to each other battery connecting part of the substrate, and the other electrode lead and each substrate connecting part of the connection body are bent in the same direction. The other electrode lead and the substrate connecting portion are respectively connected to the battery connecting portions of the substrate.

Therefore, in the battery storage pack of the present invention, the connected body having the battery protection element used therein, and the method of manufacturing the battery storage pack, the number of work steps for assembling the battery storage pack is reduced.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the battery storage pack of the present invention,
An embodiment of a method for manufacturing a connection body having a battery protection element and a battery storage pack used for this will be described with reference to the accompanying drawings.

The battery storage pack 1 is stored and connected in the main body of the personal computer as a battery for charging an information processing device such as a personal computer. The battery storage pack 1 includes a battery 3 such as a lithium ion secondary battery in a case body 2 having a flat and substantially rectangular shape.
3 and the like and the required parts are housed (see FIGS. 1 and 2).

The case body 2 is composed of an upper half 4 and a lower half 5 connected to each other. The half portion 2a on one side is thicker than the half portion 2b on the other side, and the side surface of the half portion 2a is formed. A connection opening 2c is formed (see FIGS. 1 and 2). Inside the half part 2a of the case body 2, a total of four batteries 3, 3, ... Arranged in two rows of upper and lower rows are stored, and inside the half part 2b, there are two rows of left and right lines. The two batteries 3 and 3 arranged in are accommodated, and the respective batteries 3, 3, ... Are electrically connected.

The battery 3 has a battery body 3a hermetically sealed by a cover 3b made of a polymer material (see FIGS. 3 to 5). One end portion in the longitudinal direction of the battery 3 is formed as a mount portion 3c formed thinner than the other portions. The mount portion 3c is formed on the one surface 3d side of the battery 3.

A first electrode lead 6 connected to the positive electrode of the battery main body 3a and a second electrode lead 7 connected to the negative electrode are separated from one end of the mount 3c of the battery 3 in the width direction of the battery 3. In this state, they are projected in the same direction (see FIG. 3). The first electrode lead 6 is made of an aluminum material, and the second electrode lead 7 is made of a nickel material. The battery 3 has a first
The electrode lead 6 is stored in the case body 2 with the electrode lead 6 folded back by approximately 180 ° (see FIGS. 4 and 5).

The connector 8 is attached to the mount portion 3c of the battery 3 (see FIGS. 4 and 5).

The connecting body 8 is composed of an attached portion 9, a lead connecting portion 10, and a substrate connecting portion 11, each of which is made of a plate-shaped metal material (see FIGS. 6 and 7).

The attached portion 9 has a substantially rectangular shape, and a temperature fuse 12 used as a battery protection element is attached to the central portion in the longitudinal direction.

The lead connecting portion 10 is substantially L-shaped and comprises a connecting portion 10a and a protruding portion 10b protruding in a direction orthogonal to the connecting portion 10a. The lead connecting portion 10 is attached in a state in which the coupling portion 10a is superposed on one end portion of the surface of the mounted portion 9 on the side where the thermal fuse 12 is not arranged.

The substrate connecting portion 11 has a substantially inverted L shape and is made of a nickel material. The connecting portion 11a and the connecting portion 11 are formed.
and a projecting portion 11b projecting in a direction orthogonal to a. The board connecting portion 11 is attached in a state in which the joining portion 11a is superposed on the other end portion of the surface of the attached portion 9 where the thermal fuse 12 is not arranged.

The connecting body 8 is a projecting portion 10 of the lead connecting portion 10.
b and the protruding portion 11b of the board connecting portion 11 are located in a state of being separated from each other in the longitudinal direction of the attached portion 9 (see FIG. 6).

The connecting body 8 is covered with the insulating tape 13 which is folded in two, except for the projecting portions 10b and 11b, and the portion covered with the insulating tape 13 is connected to the battery 3 via the adhesive tape 14. Mounted on the mount portion 3c of the (see FIGS. 3 and 4). The connecting body 8 is attached to the mount portion 3c so that the protruding portion 10b of the lead connecting portion 10 is overlapped with the first electrode lead 6 protruding from the battery 3, and the protruding portion 11b of the substrate connecting portion 11 is the first. It is located between the electrode lead 6 and the second electrode lead 7.

A reinforcing tab 15 is attached to the first electrode lead 6 (see FIGS. 3 and 5). The first electrode lead 6 to which the reinforcing tab 15 is attached is provided together with the protruding portion 10b of the lead connecting portion 10 that is overlapped with the first electrode lead 6
Fold back (see Figure 4). An insulating sheet 16 is provided on the end of the other surface 3e of the battery 3 opposite to the other surface 3e on the side where the first electrode lead 6 and the second electrode lead 7 are projected.
Is attached, and the folded back first electrode lead 6 and the protruding portion 10b are positioned on the insulating sheet 16, and the insulating sheet 17 is attached to the other surface 3e of the battery 3 from above ( (See FIG. 5). By folding back the first electrode lead 6 and the protruding portion 10b in this manner, the second electrode lead 7 and the substrate connecting portion 1 both formed of a nickel material.
1 and the protruding portion 11b are in a state of protruding from the battery 3 (see FIGS. 4 and 5).

The batteries 3, 3, ... Are electrically connected to each other via the first relay board 18 or the second relay board 19.

The first relay substrate 18 has four connecting portions 20, 20, ... Formed in 2 rows and 2 columns in the longitudinal direction and the width direction of the battery 3 and spaced apart from each other. (See Figure 8). The connecting portion 20 is composed of a first battery connecting portion 20a and a second battery connecting portion 20b that are formed apart from each other in the width direction of the battery 3, and the first battery connecting portion 20a and the second battery connecting portion 20b. Both are formed of a nickel material. The first relay board 18 has first battery connecting portions 20a, 20a, ... And second battery connecting portions 20b, 2b.
0b, ..., or the first battery connecting portion 20a,
Next to 20a, or the second battery connecting portion 20b, 20b
The welding holes 18a, 18a, ...

The first battery connecting portion 2 of the first relay board 18
0a, 20a, ... are batteries 3, 3, ...
· Board connecting portion 1 of the connecting bodies 8, 8, ...
The protruding portions 11b, 11b, ... Of 1, 11, ... Are joined by welding. The second battery connecting portions 20b, 20b, ... Of the first relay board 18 have second electrode leads 7, 2 protruding from the batteries 3, 3 ,.
7, ... Are joined by welding.

The first battery connecting portion 2 of the first relay board 18
0a, 20a, ... And the second battery connecting portions 20b, 20
b, ... and the board connecting portions 11, 11, ...
In the state where the protruding portions 11b, 11b, ... Are joined to the second electrode leads 7, 7, ..., Two batteries are provided on the opposite side with the first relay board 18 interposed therebetween. 3, 3,
... is located. An insulating sheet 21 is attached to the first relay board 18 so as to cover the connecting portions 20, 20, ... (See FIG. 2).

The second relay board 19 is formed with two connecting portions 22, 22 spaced apart in the width direction of the battery 3 (see FIG. 9). The connecting portion 22 is composed of a first battery connecting portion 22a and a second battery connecting portion 22b which are formed apart from each other in the width direction of the battery 3, and the first battery connecting portion 22a and the second battery connecting portion 22b. Both are formed of a nickel material. On the second relay board 19, the first battery connecting parts 22a, 22a and the second battery connecting parts 22b, 2b are provided.
2b, or directly adjacent to the first battery connecting portions 22a, 22a, welding holes 19a, 19a, ... Are formed.

The first battery connecting portion 2 of the second relay board 19
2a and 22a, the connecting portions 8 of the connecting bodies 8 and 8 protruding from the batteries 3 and 3, and the protruding portion 11b of the substrate connecting portion 11 and 11,
11b is joined by welding. Second relay board 19
Second electrode leads 7 and 7 projecting from the batteries 3 and 3 are joined to the second battery connecting portions 22b and 22b by welding, respectively.

The first battery connecting portion 2 of the second relay board 19
2a, 22a and the second battery connection portion 22b, 22b,
The board connecting portions 11 and 11 have protrusions 11b and 11b, respectively.
And the second electrode leads 7 and 7 are joined to each other, the insulating sheet 23 folded in two is attached to the second relay substrate 19 so as to cover the connection portions 22 and 22 (FIG. 2).

The second electrode lead 7 and the substrate connecting portion 1 for the first relay substrate 18 and the second relay substrate 19 described above.
When the first electrode lead 6 and the projecting portion 10b are folded back to the other surface 3e side of the battery 3 as described above, the first electrode lead 6 and the projecting portion 1 are welded at the time of joining by welding.
0b is not projected from the battery 3, and the first electrode lead 6 and the protruding portion 10b do not hinder the welding work, so that workability in the welding work can be improved.

Also, the first electrode lead 6 and the protruding portion 10b
And are folded back to the other surface 3e side of the battery 3,
Therefore, the storage space of the battery 3 in the case body 2 can be reduced, and the battery storage pack 1 can be downsized.

Further, the board connecting portion 11 of the connecting body 8 is set to the first
Since the first battery connecting portion 20a of the relay board 18 and the first battery connecting portion 22a of the second relay board 19 are made of the same nickel material, the welding work can be easily performed and the board connecting portion 11 And the first battery connection part 20
It is possible to obtain a sufficient bonding force between a and 22a.

Of the batteries 3, 3, ... Connected via the first relay board 18, the second relay board is provided above the batteries 3, 3 housed in the half 2a of the case body 2. The batteries 3 and 3 connected via 19 are arranged, and in this state, all the batteries 3 and 3 are stored in the case body 2 (see FIG. 1).
reference).

4 connected through the first relay board 18
In the state where the three batteries 3, 3, ... Are housed in the case body 2, the second battery 3, 3 ,.
, And the connection bodies 8, 8, ...
Of the board connecting portions 11, 11, ...
.. are bent in a predetermined direction (see FIG. 10). That is, the second electrode leads 7, 7, ... And the protruding portions 11b, 11b, ... Of the substrate connecting portions 11, 11 ,.
.. In each of the batteries, a portion near one end and a portion near the other end in the longitudinal direction are folded back by approximately 180.degree.
The end portion on the side where the mount portions 3c, 3c, ... Are provided and the one end portion of the first relay substrate 18 are arranged so as to be vertically positioned.

Therefore, the batteries 3, 3, ... In the case body 2
The storage space for the first relay board 18 can be effectively used, and the battery storage pack 1 can be downsized.

In the vicinity of the connection opening 2c of the case body 2,
The main circuit board 24 and the sub circuit board 25 are arranged in a separated state (see FIG. 2). The first relay board 18 and the second relay board 19 are electrically connected to the main circuit board 24, and all the batteries 3, 3, ... Are connected in series by the main circuit board 24, for example. Connected.

A connector tab 26 is arranged between the main circuit board 24 and the sub circuit board 25, and a connector 27 is connected to the connector tab 26 via the sub board 25. The connector 27 is arranged in the connection opening 2c of the case body 2, and is connected to the connector provided in the main body of the personal computer in a state of being housed in the main body.

As described above, in the battery storage pack 1, the connection body 8 has the temperature fuse 12 used as a battery protection element, and the attached portion 9 to be attached to the mount portion 3c and the first attached portion 9. The lead connecting portion 10 connected to the electrode lead 6 and the second battery connecting portion 20b of the first relay board 18 or the second battery connecting portion 2 of the second relay board 19.
2b and the board connecting portion 11 connected to the board 2b.

Therefore, the lead connecting portion 10 of the connecting body 8 attached to the battery 3 is connected to the first electrode lead 6, and the board connecting portion 11 and the second electrode lead 7 are connected to the first relay board 18, respectively. The first battery connecting portion 20a and the second battery connecting portion 20b, or the first battery connecting portion 22a and the second battery connecting portion 22b of the second relay substrate 19 may be connected,
It is possible to reduce the number of working steps in the assembling work of the battery storage pack 1 and to shorten the working time.

In particular, when an attempt is made to manufacture the above-mentioned battery storage pack 1 in which a plurality of batteries 3, 3, ... Are connected to each other and stored in the case body 2, productivity is improved by workability. Is extremely high.

The manufacturing method (assembly method) of the battery storage pack 1 will be described below (see FIGS. 11 to 18).

First, the adhesive tape 14 glued on both sides is attached to the mount portion 3c of the battery 3 (see FIG. 11).

Next, the insulating sheet 16 is attached to the end of the other surface 3e of the battery 3 on the side where the first electrode lead 6 and the second electrode lead 7 are projected (see FIG. 12).

Next, the portion of the connector 8 covered with the insulating tape 13 is attached to the mount portion 3c of the battery 3 by the adhesive tape 14 already attached to the mount portion 3c (see FIG. 13). The connecting body 8 is attached to the mount portion 3c so that the protruding portion 10b of the lead connecting portion 10 is overlapped with the first electrode lead 6 protruding from the battery 3, and the protruding portion 11b of the substrate connecting portion 11 is the first. It is located between the electrode lead 6 and the second electrode lead 7. At this time, the reinforcing tab 15 is attached to the first electrode lead 6.

Next, the first electrode lead 6 having the reinforcing tab 15 attached thereto is overlapped with the lead connecting portion 10
14 is folded back to the other surface 3e side of the battery 3 together with the protruding portion 10b, and the insulating sheet 17 is attached to the back surface side of the battery 3 so as to cover the folded back first electrode lead 6 and the protruding portion 10b (FIG. 14). reference). Thus, the first electrode lead 6
The second electrode lead 7 and the protruding portion 11b of the substrate connecting portion 11 both of which are made of a nickel material are projected from the battery 3 by folding back the protruding portion 10b and the protruding portion 10b.

Next, the first battery connecting portion 20a and the second battery connecting portion 20b of the first relay substrate 18 are welded to the projecting portion 11b of the substrate connecting portion 11 and the second electrode lead 7, respectively. Are joined together (see FIG. 15).

The first relay board 18 has a welding hole 18a.
Is formed, and so-called indirect welding can be used as a method of welding the protrusion 11b and the second electrode lead 7 by using this (see FIG. 16).

Indirect welding can be performed by, for example, the protrusion 1
In the case of welding 1b and the first battery connecting portion 20a, the protruding portion 11b is superposed on the first battery connecting portion 20a, and the positive electrode rod 28 is arranged above the protruding portion 11b. The negative electrode rod 29 is arranged above the welding hole 18a, and the welding jig 30 is arranged below the first relay board 18. An arc is emitted from the positive electrode rod 28, and the protrusion 11b, the first battery connecting portion 20a, and the welding jig 3 are used.
The arc is incident on the negative electrode rod 29 through the 0 and the welding hole 18a, and the protruding portion 11b and the first battery connecting portion 2 are connected.
0a is joined.

If indirect welding is performed in this way,
By appropriately moving the plus side electrode rod 28 and the minus side electrode rod 29 with respect to the first relay substrate 18,
The protruding portions 11b, 11b, ... And the first battery connecting portion 20
welding with a, 20a, ... and the second electrode lead 7,
7, and the second battery connecting portions 20b, 20b ,.
The welding can be continuously performed, and the work efficiency in welding work can be significantly improved.

Next, after all the above-described welding work for the first relay board 18 with respect to the four batteries 3, 3, ... Is completed, the connecting portions 20, 20, of the first relay board 18,
The insulating sheet 21 is attached so as to cover the ... (See FIG. 17).

Next, the second electrode leads 7, 7, ... And the protruding portions 11b, 11 of the substrate connecting portions 11, 11 ,.
The portions of b, ... Near one end and the portion near the other end in the respective longitudinal directions are folded back by approximately 180 °, and the batteries 3, 3, ...
Are arranged so that the portions on the side where the mount portions 3c, 3c, ... Are provided and one end portion of the first relay board 18 are vertically positioned (see FIG. 18).

Next, the batteries 3 and 3 are connected to each other via the second relay board 19 in the same manner as in the above case in which the batteries 3 to 3 are connected to each other via the first relay board 18.

Finally, the required components such as the main circuit board 24 and the sub circuit board 25 are arranged at predetermined positions of the case body 2, and the batteries 3 and 3 are connected through the first relay board 18. ... and the batteries 3 and 3 connected via the second relay board 19 are housed in the case body 2 to complete the manufacturing (assembly) of the battery housing pack 1.

In the above, the lead connecting portion 10 of the connecting body 8 is connected to the first electrode lead 6 connected to the positive electrode of the battery main body 3a, and the second electrode lead 7 is connected to the first relay substrate 18 of the first relay substrate 18. 2 shows the case where it is connected to the second battery connecting portion 20b or the second battery connecting portion 22b of the second relay substrate 19, but conversely, the lead connecting portion 10 of the connecting body 8 is connected to the negative electrode of the battery main body 3a. The second battery connecting portion 20b of the first relay substrate 18 or the second battery connecting portion 22 of the second relay substrate 19 is connected to the second electrode lead 7 and the projecting portion 11b of the substrate connecting portion 11 is connected to the second battery connecting portion 20b of the first relay substrate 18.
b while connecting the first electrode lead 6 to the first battery connecting portion 20a of the first relay board 18 or the second relay board 1
You may connect to the 9th 1st battery connection part 22a.

However, in this case, the first electrode lead 6 made of an aluminum material is welded to the first battery connecting portion 20a or the second battery connecting portion 20a of the first relay substrate 18.
Will be connected to the first battery connecting portion 22a of the relay board 19.

Further, although the case where the connecting body 8 composed of the three members of the attached portion 9, the lead connecting portion 10 and the substrate connecting portion 11 is used has been described above, instead of the connecting body 8, You may use the connection body 8A which integrally formed the to-be-attached part 9A, the lead connection part 10A, and the board | substrate connection part 11A as shown in FIG. Connection body 8 in which each part is integrally formed
By using A, it is possible to reduce the number of parts, and it is possible to further improve the workability without having to perform the work of assembling the three members.

The specific shapes and structures of the respective portions shown in the above-mentioned embodiments are merely examples of the embodiment when the present invention is carried out, and the technical aspects of the present invention can be achieved by these. The range should not be construed as limiting.

[0069]

As is apparent from the above description, the battery pack of the present invention comprises a battery having a pair of electrode leads connected to the positive electrode or the negative electrode and a substrate having a pair of battery connecting portions. Is a battery storage pack in which one of the electrode leads is connected to one of the battery connecting portions of the substrate, and the attached portion has a battery protection element and is attached to the battery, and the attached portion. And a lead connecting portion that is connected to the other electrode lead of the substrate and is protruded in the same direction as the lead connecting portion while being separated from the mounted portion and connected to the other battery connecting portion of the substrate. A connecting body constituted by a board connecting portion,
It is characterized in that the other electrode lead is connected to the other battery connecting portion of the substrate through a connecting body.

Therefore, it is sufficient to connect the lead connecting portion of the connecting body attached to the battery to the other electrode lead, and connect the board connecting portion and the one electrode lead to each battery connecting portion of the board. It is possible to reduce the number of man-hours in the assembling work and to shorten the working time.

Particularly, when an attempt is made to manufacture a battery storage pack in which a plurality of batteries are connected to each other and stored in the case body, the productivity is extremely high due to the improved workability.

In the invention described in claim 2, the lead connecting portion connected to the other electrode lead is folded back together with the other electrode lead, and the surface opposite to the surface to which the attached portion of the battery is attached. Since the other electrode lead and the lead connecting portion are attached to, the lead connecting portion and the other electrode lead do not hinder the bonding work of the substrate connecting portion and each battery connecting portion of the one electrode lead, The workability in the joining work can be improved.

Further, the space for accommodating the battery in the case body can be reduced, and the battery storage pack can be miniaturized.

In the invention described in claim 3, since the board connecting portion of the connecting body is formed of the same material as the other battery connecting portion of the board, the welding work between the board connecting portion and the battery connecting portion of the board is performed. Can be easily performed, and a sufficient bonding force between the substrate connecting portion and the battery connecting portion can be obtained.

In the invention described in claim 4, since the attached portion of the connecting body, the lead connecting portion and the board connecting portion are integrally formed, the number of parts can be reduced and a plurality of members can be formed. The workability can be further improved without the need to perform the work of assembling the connector to form the connected body.

According to the invention described in claim 5, a plurality of pairs of battery connecting portions are formed on the substrate to connect a plurality of batteries through the substrate, and one electrode lead and the substrate connecting portion of the connection body are connected. Since and are connected to each battery connection part of the board while bent in the same direction, it is possible to effectively use the storage space for the battery and the board in the case body, and to reduce the size of the battery storage pack. Can be planned.

In the connection body having the battery protection element of the present invention, the battery in which the pair of electrode leads connected to the positive electrode or the negative electrode is projected and the substrate having the pair of battery connection portions are housed in the case body, and Is a connection body having a battery protection element for use in a battery storage pack in which the electrode lead of is connected to one battery connection portion of the substrate, and the attachment part to be attached to the battery having the battery protection element and the attachment target And a lead connecting portion that is connected to the other electrode lead of the substrate and is protruded in the same direction as the lead connecting portion while being separated from the mounted portion and connected to the other battery connecting portion of the substrate. And a board connecting portion.

Therefore, it is sufficient to connect the lead connecting portion of the connecting body attached to the battery to the other electrode lead, and connect the substrate connecting portion and one electrode lead to each battery connecting portion of the substrate. It is possible to reduce the number of work steps in assembling the battery storage pack to be used, and to shorten the working time.

Particularly, when an attempt is made to manufacture a battery storage pack in which a plurality of batteries are connected to each other and stored in the case body, productivity is extremely high due to improvement in workability.

In the invention described in claim 7, the lead connecting portion connected to the other electrode lead is folded back together with the other electrode lead, and the surface opposite to the surface to which the attached portion of the battery is attached. Since the other electrode lead and the lead connecting portion are attached to, the lead connecting portion and the other electrode lead do not hinder the bonding work of the substrate connecting portion and each battery connecting portion of the one electrode lead, The workability in the joining work can be improved.

Further, the storage space of the battery in the case body can be reduced, and the battery storage pack using the connection body can be downsized.

In the invention described in claim 8, since the board connecting portion is formed of the same material as the other battery connecting portion of the board, the welding work between the board connecting portion and the battery connecting portion of the board is easy. It is possible to obtain a sufficient bonding force between the substrate connecting portion and the battery connecting portion.

According to the invention described in claim 9, since the attached portion, the lead connecting portion and the board connecting portion are integrally formed, the number of parts can be reduced and a plurality of members can be assembled. The workability can be further improved without the need to perform the work of forming the connection body.

According to the invention described in claim 10, a plurality of batteries are connected through a substrate having a plurality of pairs of battery connecting portions formed thereon, and the substrate connecting portion is bent in the same direction as one of the electrode leads. Since it is connected to the other battery connection portion of the board in this state, the storage space for the battery and the board in the case body can be effectively used, and the battery storage pack using the connection body can be miniaturized. be able to.

The method of manufacturing a battery storage pack according to the present invention is a battery storage pack in which a battery having a pair of electrode leads connected to a positive electrode or a negative electrode and a substrate having a pair of battery connecting portions are housed in a case body. The manufacturing method of
It comprises an attached portion having a battery protection element, a lead connecting portion protruding from the attached portion, and a substrate connecting portion protruding in the same direction as the lead connecting portion while being separated from the attached portion. The attached part of the connection body is attached to the battery, the lead connecting part is connected to one electrode lead and folded back together with the one electrode lead, and the lead connecting part is provided on the surface opposite to the surface on which the attached part of the battery is attached. And one of the electrode leads are attached, and the substrate connecting portion of the connection body is connected to one battery connecting portion of the substrate and the other electrode lead is connected to the other battery connecting portion of the substrate. .

Therefore, the lead connecting portion and one electrode lead do not hinder the work of joining the substrate connecting portion and the other electrode lead to the respective battery connecting portions, and the workability in the joining work can be improved. .

Further, the storage space of the battery in the case body can be reduced, and the battery storage pack can be downsized.

Another method of manufacturing the battery storage pack of the present invention is as follows.
A method of manufacturing a battery storage pack in which a plurality of batteries, each of which has a pair of electrode leads connected to a positive electrode or a negative electrode, and a substrate having a plurality of paired battery connecting portions, are housed in a case body. A plurality of connections including a mounted portion having a lead connection portion, a lead connecting portion protruding from the mounted portion, and a board connecting portion protruding in the same direction as the lead connecting portion in a state where the lead connecting portion is separated from the mounted portion. Attach each attached part of the body to each battery and connect each lead connection part to each electrode lead of one side, connect each board connection part of the connection body to each battery connection part of the board and each other electrode The leads are connected to the other battery connecting portions of the substrate, and the other electrode leads and the substrate connecting portions of the other are connected in a state where the other electrode leads and the substrate connecting portions of the connection body are bent in the same direction. Each battery connection part of the board Characterized in that so as to connect respectively.

Therefore, the storage space for the battery and the substrate in the case body can be effectively used, and the battery storage pack can be miniaturized.

[Brief description of drawings]

1 is a battery storage pack of the present invention, together with FIG. 2 to FIG.
It shows an embodiment of a method for manufacturing a connection body and a battery storage pack having a battery protection element used for this,
This figure is a perspective view of the battery storage pack.

FIG. 2 is an exploded perspective view of a battery storage pack.

FIG. 3 is an enlarged exploded perspective view showing a battery and each component attached to the battery.

FIG. 4 is an enlarged perspective view showing a battery and each component attached to the battery.

5 is an enlarged perspective view showing the battery and each component attached to the battery as viewed from the side opposite to FIG.

FIG. 6 is an enlarged perspective view showing a connection body and an insulating tape attached to the connection body.

FIG. 7 is an enlarged exploded perspective view of a connection body.

FIG. 8 is an enlarged perspective view showing a relationship between a first relay board and electrode leads.

FIG. 9 is an enlarged perspective view showing a relationship between a second relay board and electrode leads.

FIG. 10 is an enlarged side view showing, in a partial cross section, a state in which the board connecting portion of the connection body and the second electrode lead are bent.

FIG. 11 shows a method for manufacturing a battery storage pack together with FIGS. 12 to 18, and is an enlarged plan view showing a state in which an adhesive tape is attached to a battery mount portion.

FIG. 12 is an enlarged bottom view showing a state in which an insulating sheet is attached to a battery.

FIG. 13 is an enlarged plan view showing a state in which the connector is attached to the battery mount portion.

FIG. 14 is an enlarged bottom view showing a state in which the first electrode lead is folded back together with the lead connecting portion of the connecting body.

FIG. 15 is an enlarged plan view showing a state in which the second electrode lead and the board connecting portion of the connecting body are joined to the battery connecting portions of the first relay board.

FIG. 16 is an enlarged side view showing a state in which indirect welding is performed with a part of the cross section.

FIG. 17 is an enlarged plan view showing a state in which an insulating sheet is attached to the first relay board.

FIG. 18 is an enlarged side view showing a state where the board connecting portion of the connection body and the second electrode lead are bent.

FIG. 19 is an enlarged perspective view showing a connection body in which each unit is integrally formed.

FIG. 20 is an enlarged exploded perspective view showing an example of the internal structure of a conventional battery storage pack.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Battery storage pack, 2 ... Case body, 3 ... Battery, 6 ... 1st electrode lead, 7 ... 2nd electrode lead, 8 ... Connection body,
9 ... Attached part, 10 ... Lead connecting part, 11 ... Board connecting part, 12 ... Thermal fuse (battery protection element), 18 ... First
Relay board (board), 19 ... second relay board (board),
20a ... 1st battery connection part, 20b ... 2nd battery connection part, 22a ... 1st battery connection part, 22b ... 2nd battery connection part, 8A ... Connection body, 9A ... Attached part, 10A ... Lead Connection part, 11A ... Board connection part

Claims (12)

[Claims] 1. A battery in which a pair of electrode leads connected to a positive electrode or a negative electrode is projected and a substrate having a pair of battery connecting portions are housed in a case body, and one electrode lead of one of the substrates is provided. A battery storage pack connected to a battery connecting part, which has a battery protection element and is attached to a battery,
A lead connecting portion protruding from the attached portion and connected to the other electrode lead, and a lead connecting portion protruding from the attached portion in the same direction as the lead connecting portion and being separated from the lead connecting portion to the other battery connecting portion of the substrate. A battery storage pack comprising a connecting body configured by a substrate connecting portion to be connected, wherein the other electrode lead is connected to the other battery connecting portion of the substrate via the connecting body. 2. The lead connecting portion connected to the other electrode lead is folded back together with the other electrode lead, and the other electrode lead and the lead connecting portion are provided on the surface opposite to the surface to which the attached portion of the battery is attached. The battery storage pack according to claim 1, wherein the battery storage pack is attached. 3. The battery storage pack according to claim 1, wherein the board connecting portion of the connecting body is formed of the same material as the other battery connecting portion of the board. 4. The battery storage pack according to claim 1, wherein the attached portion of the connection body, the lead connection portion, and the substrate connection portion are integrally formed. 5. A plurality of pairs of battery connecting portions are formed on the substrate, a plurality of batteries are connected through the substrate, and one electrode lead and the substrate connecting portion of the connection body are bent in the same direction. The battery storage pack according to claim 1, wherein the battery storage pack is connected to each battery connection portion of the substrate. 6. A battery in which a pair of electrode leads connected to a positive electrode or a negative electrode is projected and a substrate having a pair of battery connecting portions are housed in a case body, and one electrode lead is one battery of the substrate. A connected body having a battery protection element used for a battery storage pack connected to a connection section, the attached section having a battery protection element and attached to a battery,
A lead connecting portion protruding from the attached portion and connected to the other electrode lead, and a lead connecting portion protruding from the attached portion in the same direction as the lead connecting portion and being separated from the lead connecting portion to the other battery connecting portion of the substrate. A connection body having a battery protection element, characterized in that the connection body is configured with a substrate connection part to be connected. 7. The lead connecting portion connected to the other electrode lead is folded back together with the other electrode lead, and the other electrode lead and the lead connecting portion are provided on the surface opposite to the surface on which the attached portion of the battery is attached. The connection body having the battery protection element according to claim 6, wherein the connection body is attached. 8. The connection body having a battery protection element according to claim 6, wherein the substrate connection portion is formed of the same material as the other battery connection portion of the substrate. 9. The connection body having a battery protection element according to claim 6, wherein the attached portion, the lead connection portion and the substrate connection portion are integrally formed. 10. A plurality of batteries are connected through a substrate having a plurality of pairs of battery connecting parts formed thereon, and the other battery connecting part of the substrate is bent in the same direction as one of the electrode leads. The connection body having the battery protection element according to claim 6, characterized in that the connection body is connected to. 11. A method of manufacturing a battery storage pack, wherein a battery, in which a pair of electrode leads connected to a positive electrode or a negative electrode is projected, and a substrate having a pair of battery connecting portions are housed in a case body. Connection consisting of an attached portion having a protective element, a lead connecting portion protruding from the attached portion, and a board connecting portion protruding from the attached portion in the same direction as the lead connecting portion while being separated from the lead connecting portion Attach the attached portion of the body to the battery, connect the lead connecting portion to one electrode lead and fold back together with the one electrode lead, and connect the lead connecting portion to the surface opposite to the surface to which the attached portion of the battery is attached. One electrode lead is attached, and the board connecting part of the connection body is connected to one battery connecting part of the board, and the other electrode lead is connected to the other battery connecting part of the board. A method of manufacturing a battery storage pack. 12. A method of manufacturing a battery storage pack in which a plurality of batteries, each of which has a pair of electrode leads connected to a positive electrode or a negative electrode, and a substrate having a plurality of battery connection portions, are housed in a case body. An attached portion having a battery protection element, a lead connecting portion protruding from the attached portion, and a board connecting portion protruding in the same direction as the lead connecting portion while being separated from the attached portion from the attached portion. Attach each attached part of a plurality of connected bodies to each battery and connect each lead connection part to each one electrode lead, and connect each board connection part of the connection body to each battery connection part of one of the boards Together with each other electrode lead is connected to each other battery connection portion of the substrate, each of the other electrode lead and each of the other electrode lead and each substrate connection portion of the connection body are bent in the same direction. Based on the board connection A method for manufacturing a battery storage pack, characterized in that each battery connection part is connected to each battery connection part of the plate.