JP5489243B2 - Safety power supply device for battery pack - Google Patents

Description

The present invention relates to an assembled battery, and more particularly to an assembled battery configured by electrically connecting a plurality of single-piece secondary batteries.

FIG. 1 shows an assembled battery of US Pat. No. 7,670,718 of Patent Document 1 proposed by the applicant of the present application. Such an assembled battery is configured by assembling a plurality of single-piece secondary batteries 10 and fuses 11 having the same number as the number of these single-piece secondary batteries 10 into an I-shaped frame 12. .

One side of each single-piece secondary battery 10 is welded to a single fuse 11, and each single-piece secondary battery 10 is connected in series via a plurality of conductive strips 13, or connected in parallel to supply power. Output.

If any single piece secondary battery 10 fails and the current value exceeds the allowable value, the fuse 11 directly connected to the single piece secondary battery 10 becomes an open circuit, and the unit One piece secondary battery 10 is separated from other single piece secondary batteries 10. Thereby, it can avoid that the whole assembled battery becomes a failure by the failure of one single piece secondary battery 10.

However, this has the following problems.
(1) When a plurality of assembled batteries are stacked and electrically connected to each other, the conductive strips exposed to the outside from the two side surfaces of the frame may be in contact with each other and short-circuited. Collective batteries cannot be stacked directly.

(2) Since each single-piece secondary battery is provided so as to be shielded by the fuse, if the single-piece secondary battery leaks or explodes and the fuse does not rupture, the single piece that has failed visually The appearance of the secondary battery cannot be confirmed. Unless the single piece secondary battery and the fuse are disassembled, it is extremely inconvenient because an abnormality of the failed single piece secondary battery cannot be confirmed.

U.S. Pat. No. 7,670,718

The main object of the present invention is to facilitate the assembly and repair of members, and to increase the safety when the assembled battery is placed side by side or stacked and electrically connected for use. Is to provide.

According to the power safety supply device for an assembled battery of the present invention, the two surfaces corresponding to each other are respectively formed into an accommodation space and an assembly surface, and the accommodation space has a rectangular configuration having four side frames. The back surface of the bottom is the assembly surface, the frames on both sides of the accommodation space are two longitudinal frames, and the two frames other than the two longitudinal frames are two width frames, A plurality of through holes are provided in a portion adjacent to the two longitudinal frames at the bottom of the storage space, and the through holes are adjacent to each other with a frame passing through the storage space and the assembly surface. A plurality of single-piece secondary batteries adjacent to the two longitudinal frames, and the set of the frames. A positive electrode conductive strip that is assembled to the cut surface and whose end is molded to the positive electrode output end; a negative electrode conductive strip that is assembled to the assembly surface of the frame and whose end is molded to the negative output end; and Assembled to the assembly surface of the frame, each having two connection ends, one of the connection ends being connected to the positive electrode conductive strip or the negative electrode conductive strip, and the remainder of the connection end is inserted through the through hole A plurality of fuses connected to a positive electrode or a negative electrode of the single-piece secondary battery in the housing space and assembled to the assembly surface of the frame, each having two connection ends; Is connected to the positive electrode conductive strip or the negative electrode conductive strip, and the remainder of the connection end is inserted through the through hole and connected to the positive electrode or the negative electrode of the single-piece secondary battery in the housing space. Including a plurality of connecting tools, To.

According to the power safety supply device for an assembled battery of the present invention, one connection end of the fuse is fastened to a positive electrode conductive strip or a negative electrode conductive strip via a screw, and one connection end of the connecting tool is connected via a screw. And fastened to the positive electrode conductive strip or the negative electrode conductive strip.

According to the power safety supply device for an assembled battery of the present invention, one connection end of the fuse is located in the accommodation space through the through hole and is connected to the positive electrode or the negative electrode of the single-piece secondary battery. A connecting end of the connecting tool is inserted in the through hole and positioned in the accommodating space, and is connected to a terminal connected to a positive electrode or a negative electrode of the single-piece secondary battery. Folded and molded.

According to the power safety supply device for an assembled battery of the present invention, when two assembled batteries are electrically connected and used, the respective width direction frames of the two assembled batteries are installed so as to be adjacent to each other, The two assembled batteries are characterized in that they are electrically connected to each other by adopting a single positive electrode conductive strip and a single negative conductive strip.

According to the power safety supply device for an assembled battery of the present invention, the assembly work and repair of the members are facilitated, and the safety is increased when the assembled battery is placed side by side or stacked and electrically connected. There is an effect.

It is a perspective view which shows the structure of the conventional assembled battery by patent document 1. FIG. It is a disassembled perspective view of one Example of this invention. It is a perspective view which shows the state in which the one part member of this invention was assembled | attached. It is a schematic diagram which shows the state by which each single piece secondary battery of this invention was assembled | attached to the accommodation space. It is sectional drawing which shows the combined state of one Example of this invention. It is a schematic diagram which shows the state which accumulates and uses the two assembled batteries of this invention. It is a schematic diagram which shows the state which uses the longitudinal direction flame | frame of the two assembled batteries of this invention adjacent and electrically connected. It is a schematic diagram which shows the state which uses the width direction frame of the two assembled batteries of this invention adjacent and electrically connected.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, reference will be made to FIGS. In the power safety supply device for an assembled battery according to an embodiment of the present invention, a plurality of single-piece secondary batteries 30 are assembled on one surface of the frame 20, and a positive electrode conductive strip 40 and a negative electrode conductive member are mounted on the other surface of the frame 20. The strip 50 and a plurality of fuses 60 are assembled. Each single-piece secondary battery 30 is electrically connected to the positive electrode conductive strip 40 and the negative electrode conductive strip 50 through the plurality of connecting tools 70 and the fuses 60. Each single-piece secondary battery 30 is electrically connected to one fuse 60. Thereby, the assembled battery 100 is comprised.

The frame 20 is formed with two surfaces corresponding to each other into a housing space 21 and an assembly surface 22, respectively. The accommodation space 21 has a rectangular configuration having four side frames, and the back surface of the bottom 23 is an assembly surface 22. Frames on both sides of the accommodation space 21 are two longitudinal frames 24, and two frames other than the two longitudinal frames 24 are two width frames 25. A plurality of through holes 26 are provided in a portion of the bottom 23 of the accommodation space 21 adjacent to the two longitudinal frames 24. The through hole 26 passes through the accommodation space 21 and the assembly surface 22.

Each single-piece secondary battery 30 is assembled in the accommodating space 21 so as to be adjacent to each other, and the positive electrode 31 or the negative electrode 32 is disposed so that the same polarity is adjacent to each other, and is adjacent to the two longitudinal frames 24. .

The positive electrode conductive strip 40 is assembled to the assembly surface 22 of the frame 20, and the end thereof is formed into the positive electrode output end 41.

The negative electrode conductive strip 50 is assembled to the assembly surface 22 of the frame 20, and its end is molded into the negative output end 51.

The fuse 60 is assembled to the assembly surface 22 of the frame 20 and has two connecting ends 61 and 62. One of the connection ends 61 and 62 is connected to the positive electrode conductive strip 40 or the negative electrode conductive strip 50, and the remainder of the connection ends 61 and 62 is positioned in the accommodation space 21 through the through hole 26, and is a single-piece secondary battery. 30 terminals 621 connected to the positive electrode 31 or the negative electrode 32 are folded and molded. Thereby, each single piece secondary battery 30 is connected to one fuse 60.

The connecting tool 70 is assembled to the assembly surface 22 of the frame 20 and has two connection ends 71 and 72, respectively. One of the connection ends 71 and 72 is fastened to the positive electrode conductive strip 40 or the negative electrode conductive strip 50 via the screw 73. The remaining connection ends 71 and 72 are inserted into the through hole 26 and positioned in the accommodation space 21, and are bent into a terminal 721 connected to the positive electrode 31 or the negative electrode 32 of the single-piece secondary battery 30 to be molded.

Next, the usage and effects of an embodiment of the present invention will be described with reference to FIGS. After assembling the fuse 60, the connecting tool 70, the positive electrode conductive strip 40, and the negative electrode conductive strip 50 to the frame 20, the single piece secondary battery 30 can be assembled into the accommodation space 21. In particular, in the accommodating space 21, the connecting end 62 of the fuse 60 and the connecting end 72 of the connecting tool 70 are each bent into a terminal 621. When assembling each single-piece secondary battery 30 in the accommodation space 21, all members can be assembled without welding, so that the assembling work and replacement of the single-piece secondary battery 30 can be performed. It becomes easy.

Please refer to FIG. 3 and FIG. Since the fuse 60, the positive conductive strip 40, and the negative conductive strip 50 are assembled to the assembly surface 22 of the frame 20, the visual confirmation of each fuse 60 is convenient, and the assembly work and replacement are facilitated.

Please refer to FIG. After assembling each single-piece secondary battery 30 in the accommodation space 21, each single-piece secondary battery 30 is neatly arranged and exposed to the outside from one surface of the frame 20, so that visual confirmation is convenient. .

On the other hand, since the positive electrode conductive strip 40 and the negative electrode conductive strip 50 are not provided on the surface exposed to the outside of each single piece secondary battery 30, as shown in FIG. When stacked, the assembly surfaces 22 of the two battery packs 100 can be provided so as to be partitioned. In this manner, the assembled batteries 100 can be stacked, and the risk of short-circuiting the positive electrode conductive strips 40 or the negative electrode conductive strips 50 of different assembled batteries 100 can be avoided.

Please refer to FIG. FIG. 7 is a schematic diagram showing a state in which the longitudinal frames 24 of the two assembled batteries 100 of the present invention are used adjacently and electrically connected.

Please refer to FIG. FIG. 8 is a schematic view showing a state in which the width direction frames 25 of the two assembled batteries 100 of the present invention are adjacently and electrically connected. By using the single positive electrode conductive strip 40 and the single negative conductive strip 50, the two assembled batteries 100 can be electrically connected.

The present invention can be applied to an assembled battery.

10: Single piece secondary battery 11: Fuse 12: I-shaped frame 13: Conductive strip 20: Frame 21: Housing space 22: Assembly surface 23: Bottom 24: Longitudinal frame 25: Width frame 26: Through hole 30 : Single piece secondary battery 31: Positive electrode 32: Negative electrode 40: Positive electrode conductive strip 41: Positive electrode output end 50: Negative electrode conductive strip 51: Negative electrode output end 60: Fuse 61: Connection end 62: Connection end 63: Screw 70: Connection Tool 71: Connection end 72: Connection end 73: Screw 100: Collective battery 621: Terminal 721: Terminal

Claims (4)

Two surfaces corresponding to each other are respectively formed into an accommodation space and an assembly surface, and the accommodation space has a rectangular configuration having four side frames, and the back surface of the bottom is the assembly surface, Frames on both sides of the receiving space are two longitudinal frames, two frames other than the two longitudinal frames are two width frames, and the two longitudinal frames at the bottom of the receiving space are A plurality of through holes are provided in adjacent portions, and the through hole has a frame that penetrates the housing space and the assembly surface;
A plurality of single-piece secondary batteries that are assembled in the receiving space so as to be adjacent to each other, the positive or negative electrodes are arranged so that the same polarity is adjacent to each other, and are adjacent to the two longitudinal frames;
A positive electrode conductive strip that is assembled to the assembly surface of the frame and whose end is molded into a positive output end;
A negative electrode conductive strip assembled to the assembly surface of the frame, the end of which is molded into a negative output end;
Assembled to the assembly surface of the frame, each having two connecting ends, one of the connecting ends is connected to the positive electrode conductive strip or the negative electrode conductive strip, and the remainder of the connecting end is the through hole. A plurality of fuses connected to the positive or negative electrode of the single-piece secondary battery in the accommodating space;
Assembled to the assembly surface of the frame, each having two connection ends, one of the connection ends being connected to the positive electrode conductive strip or the negative electrode conductive strip, and the remainder of the connection end is the through hole A plurality of connecting tools that are inserted and connected to the positive electrode or the negative electrode of the single-piece secondary battery in the accommodation space;
A power safety supply device for an assembled battery, comprising: One connecting end of the fuse is fastened to a positive conductive strip or a negative conductive strip via a screw, and one connecting end of the connecting tool is fastened to a positive conductive strip or a negative conductive strip via a screw. The assembled battery power safety supply device according to claim 1, wherein: One connecting end of the fuse is inserted in the through hole, is located in the accommodating space, is formed by being folded into a terminal connected to the positive electrode or the negative electrode of the single-piece secondary battery, The one connection end is inserted in the through hole, is positioned in the accommodation space, and is formed by being folded into a terminal connected to a positive electrode or a negative electrode of the single-piece secondary battery. The power safety supply device for an assembled battery according to 1. When two battery packs are used in an electrically connected state, the widthwise frames of the two battery packs are installed adjacent to each other, and the two battery packs have a single positive electrode conductive strip and 2. The power safety supply device for an assembled battery according to claim 1, wherein a single negative electrode conductive strip is used to electrically connect each other.