TWI788079B - Series-parallel device of pouch battery - Google Patents

Abstract

The present invention is a series-parallel device for pouch batteries, which is mainly used for quickly installing a large number of pouch batteries. It includes a casing, a pouch battery module and a positive and negative connection configuration module. a top and a bottom, the top is transparent and communicated with the inside of the casing, and forms a containing space, the pouch battery module is placed into the containing space of the casing through the top of the casing, The positive and negative pole connection configuration module is matched with the arrangement and combination of the positive and negative poles of the pouch battery module, and is arranged on the top of the casing; through the positive and negative pole connection configuration module and the pouch battery module, the series-parallel connection Configuration, in order to achieve the purpose of reducing production costs, facilitating maintenance and improving the efficiency of assembly and disassembly.

Description

Series-parallel device of pouch battery

The invention relates to a series-parallel device, in particular to a series-parallel device of a pouch battery.

With the problem of global warming, countries pay more attention to environmental protection and green energy, and gradually focus on the development of technology to replace petrochemical energy with electric energy. For example, electric vehicles gradually replace gasoline vehicles. In this way, large-capacity power storage technology With the rapid development, many companies must pay more attention to the cost and product convenience in order to catch up with the market demand. Therefore, how to improve product convenience and reduce cost has become one of the main issues.

At present, laser welding or ultrasonic welding is generally used in the market when pouch batteries are connected in series and parallel. Both of these methods need to make molds and use robotic arms for welding, which are more suitable for large or small modules. If the series-parallel connection of pouch batteries is applied to the series-parallel connection of large-scale pouch battery modules, larger molds and carriers will be required. As a result, the cost will increase accordingly, and the practicability will be relatively low.

Furthermore, in order to optimize the cost and efficiency problems caused by laser welding or ultrasonic welding, the existing technology usually uses tin soldering instead, but in addition to the risk of false soldering or desoldering, the tin soldering method is not conducive to subsequent Troubleshooting, assembly and disassembly are quite time-consuming, and the soldering method is also easy to melt the insulation layer of the wire due to high temperature during the soldering process, resulting in a short circuit between the batteries.

Therefore, the prior art really needs to further provide the necessity of a better improvement scheme.

In view of the deficiencies in the prior art above, the main purpose of the present invention is to provide a series-parallel device for pouch batteries, which is mainly used for quickly installing a large number of pouch batteries. , to reduce costs and facilitate maintenance and improve assembly and disassembly efficiency.

The main technical means adopted to achieve the above purpose is to make the aforementioned pouch battery series-parallel device include: a housing with a top and a bottom, the top is hollow and communicated with the inside of the housing, and Form an accommodating space; a pouch battery module is set in the accommodating space of the casing, and the pouch battery module includes a plurality of pouch batteries; a positive and negative connection configuration module is set in the The top of the housing is matched with the arrangement and combination of the positive and negative electrodes of the pouch batteries of the pouch battery module.

Through the above structure, the pouch battery module is placed into the casing through the top of the casing, and the positive and negative connection configuration modules are matched with the pouch battery module to perform a series-parallel configuration of the pouch batteries; The series-parallel configuration between the connecting piece and the pouch battery can achieve the purpose of reducing production cost, facilitating maintenance and improving the efficiency of assembly and disassembly.

10: Shell

11: top

12: Bottom

13:Accommodating space

14: Hole opening

20: Soft pack battery module

21: Battery box

22: Soft pack battery

23: Upholstered

30: Positive and negative connection configuration module

31: Insulation board

311: Hollow structure

312: support surface

32: connecting piece

32A: the first connecting piece

321A: pole lug groove

322A: Connecting sheet opening

32B: The second connecting piece

321B: pole lug groove

322B: Connecting piece opening

32C: The third connecting piece

321C: Ear groove

322C: Connecting sheet opening

41:Fixer

Figure 1 is a schematic view of the appearance of a preferred embodiment of the present invention.

Fig. 2 is another schematic view of the appearance of the preferred embodiment of the present invention.

Fig. 3 is a schematic diagram of a connecting piece of a preferred embodiment of the present invention.

Fig. 4 is a schematic diagram of the application of a preferred embodiment of the present invention.

Regarding the preferred embodiment of the series-parallel device of the pouch battery of the present invention, please refer to Figs. The casing 10 has a top 11 and a bottom 12. The top 11 of the casing 10 is hollow and communicates with the inside of the casing 10 to form an accommodating space 13. In this preferred embodiment, the The pouch battery module 20 is composed of a plurality of battery boxes 21, a plurality of pouch batteries 22, and a plurality of cushions 23. The positive and negative connection configuration module 30 is arranged on the top 11 of the housing 10, and is connected with the The arrangement and combination of the positive and negative electrodes of the pouch batteries 22 of the pouch battery module 20 match each other.

Through the above structure, the pouch battery module 20 is placed into the accommodating space 13 through the top 11 of the casing 10, and the positive and negative connection configuration module 30 is matched with the pouch battery module 20, so as to connect these The pouch batteries 22 are arranged in series and parallel; through the series and parallel arrangement between the connecting pieces 32 and the pouch batteries 22, the purpose of reducing production cost, facilitating maintenance and improving the efficiency of assembly and disassembly is achieved.

In this preferred embodiment, the positive and negative connection configuration module 30 is composed of an insulating plate 31 and a plurality of connecting pieces 32. The insulating plate 31 is further provided with a plurality of hollow structures 311, and the hollow structures 311 are arranged on the insulating plate 31. The inner wall of the structure 311 is further provided with a supporting surface 312, and the supporting surface 312 is used to support the connecting pieces 32, and then, the positive and negative poles of the pouch batteries 22 are connected to the insulating plate of the configuration module 30 through the positive and negative poles 31 and the arrangement and combination of these connecting pieces 32 match each other, so that the positive and negative electrodes of each pouch battery 22 can be connected in series and parallel through the insulating plate 31 and these connecting pieces 32, specifically, these connecting pieces 32 Different arrangements and combinations can be made according to the user's requirements for the series and parallel configuration of the pouch batteries 22 , and the structure of the insulating plate 31 is further designed for matching according to the arrangement and combination of the connecting pieces 32 .

The edge of the top 11 of the housing 10 and the insulating plate 31 are further provided with a corresponding number of openings 14, and through the openings 14 through more than one fixing piece 41, the insulating plate 31 is locked in place. on the housing 10. In this preferred embodiment, these fixing parts 41 can be made of many screws and many These openings 14 can be formed by a large number of screw holes, through which the screws are passed through the screw holes to form a threaded fixation, and then locked through the nuts to prevent loosening.

For example, the assembly structure of the pouch battery module 20 is to put five pouch batteries 22 into the battery box 21, and place the padded pads 23 between the pouch batteries 22 as required as a 1 A battery pack, and then 20 battery packs are configured in series and parallel according to the user's needs to form the soft pack battery module 20. In this preferred embodiment, the soft pads 23 can be a silicone pad, which is used to The assembling structure of the pouch battery module of the present embodiment for dissipating heat and buffering vibrations of the pouch batteries 22 is merely an example, not a limitation.

Further, as shown in Figures 1 and 3, the connecting pieces 32 in the positive and negative connection configuration module 30 can have different structures according to different series and parallel applications, and the connecting pieces 32 further include a plurality of first The connection piece 32A, the plurality of second connection pieces 32B and the plurality of third connection pieces 32C.

In this preferred embodiment, the first connecting piece 32A is L-shaped, and has a plurality of lug grooves 321A and a plurality of connecting piece openings 322A, the lug grooves 321A are parallel to each other, and The lug grooves 321A and the connecting piece openings 322A are arranged alternately. The second connecting piece 32B is sheet-shaped and has a plurality of lug grooves 321B and a plurality of connecting piece openings 322B. 321B are parallel to each other, and the lug grooves 321B and the connecting piece openings 322B are arranged alternately, the third connecting piece 32C is sheet-shaped, and has a plurality of lug grooves 321C and a plurality of connecting piece openings. Holes 322C, the ear slots 321C are arranged in plural rows, wherein the ear slots 321C arranged in the same row are parallel to each other, and the ear slots 321C arranged in different rows may not be connected, and the The ear slots 321C and the openings 322C of the connecting pieces are alternately arranged. The aforementioned ear slots 321A, 321B, and 321C are convenient for installation, and each mainly provides tabs of a single polarity for piercing, that is, one ear slot provides tabs of one polarity. Connect between to provide complex polarity settings.

In this preferred embodiment, the ear slots 321A, 321B, and 321C are used for the positive and negative ears of the pouch batteries 22, and it should be noted that the positive and negative ears of the same battery pack cannot be connected at the same time during application. On the same connecting piece 32, otherwise there will be a risk of short circuit, the positive and negative tabs of the pouch batteries 22 can be further provided with tab openings, so that the positive and negative tabs of the pouch batteries 22 can pass through the The fixing member 41 is locked on the connecting pieces 32 through the openings 321 of the connecting pieces.

The specific application of the preferred embodiment of the present invention is illustrated as an example. As shown in FIG. Fold the protruding parts of the positive and negative tabs to the positions of the openings 322A, 322B, and 322C of the connecting pieces, and then lock them through the fixing parts 41. Before locking, you can apply glue on the fixing parts so that it is not easy to be damaged. Vibration causes loosening. Through the mutual configuration of the connecting pieces 32 and the soft-pack batteries 22, the positive and negative tabs of the soft-pack batteries 22 are in a series relationship as a whole. Regarding the above-mentioned connecting pieces 32 and the The mutual configuration of the pouch batteries 22 makes the positive and negative tabs of the pouch batteries 22 in a series relationship, which is only an example and not a limitation.

10: Shell

11: top

12: Bottom

13:Accommodating space

14: Hole opening

20: Soft pack battery module

21: Battery box

22: Soft pack battery

23: Upholstered

30: Positive and negative connection configuration module

31: Insulation board

311: Hollow structure

312: support surface

32: connecting piece

41:Fixer

Claims (7)

A series-parallel device for soft-pack batteries, which includes: a casing with a top and a bottom, the top is hollow and communicated with the inside of the casing, and forms an accommodating space; a soft-pack battery The module is arranged in the accommodation space of the casing, and the pouch battery module includes a plurality of pouch batteries; and a positive and negative connection configuration module is arranged on the top of the casing, and is connected with the The arrangement and combination of the positive and negative poles of the pouch batteries of the pouch battery module are matched with each other, wherein the positive and negative pole connection configuration module is composed of an insulating plate and a plurality of connecting pieces, and the insulating plate is further provided with a plurality of The hollow structure, the inner wall of the hollow structure is further provided with a supporting surface to support the connecting pieces. The series-parallel device for pouch batteries according to claim 1, wherein the pouch battery module further includes a plurality of battery boxes and a plurality of cushions, and the cushions are arranged between the pouch batteries. The series-parallel device of pouch battery as described in claim 1, wherein, the edge of the top of the casing and the insulating plate are further provided with a corresponding number of openings, and through more than one fixing piece through the The insulating plate is locked on the casing by opening holes. The series-parallel device of pouch battery according to claim 1, wherein the connection pieces further include a plurality of first connection pieces, the first connection pieces are L-shaped, and have a plurality of tab slots and a plurality of There are openings in the connecting piece, the lug grooves are parallel to each other, and are arranged alternately with the openings in the connecting piece. The series-parallel device of pouch battery according to claim 4, wherein the connecting pieces further include a plurality of second connecting pieces, the second connecting pieces are in the shape of a sheet, and have a plurality of lug grooves for and most of the openings of the connecting pieces, the lug grooves are parallel to each other, and are arranged alternately with the openings of the connecting pieces. The series-parallel device of pouch battery according to claim 5, wherein the connection pieces further include a plurality of third connection pieces, the third connection pieces are sheet-shaped, and have a plurality of tab slots and a plurality of connections The tab openings are arranged in a plurality of rows, and the tab slots are parallel to each other, and are arranged alternately with the connecting tab openings. The series-parallel device for pouch batteries as described in claim 3, wherein the fixing parts are composed of a plurality of screws and nuts, and the openings are composed of a plurality of screw holes.

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