CN210489668U

CN210489668U - Battery cell combination and battery assembly adopting same

Info

Publication number: CN210489668U
Application number: CN201921562751.7U
Authority: CN
Inventors: 阮胜德; 李广磊
Original assignee: Anhui Ultra-Stable Power Energy Saving Technology Co Ltd
Current assignee: Anhui Ultra-Stable Power Energy Saving Technology Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-05-08
Anticipated expiration: 2029-09-19

Abstract

The utility model relates to an electricity core combination and adopt battery pack of this electricity core combination, this electricity core combination include chipset, insulation board and circuit board, the chipset is formed by the combination of a plurality of single battery chip, and every battery chip has up end and the lower terminal surface relative with the up end, this up end is located to the insulation board lid, the circuit board is arranged in on this insulation board, be equipped with positive pole, negative pole utmost point ear on the up end, utmost point ear passes insulation board and circuit board fixed connection. The electric core component not only omits a lug fixing plate and an auxiliary connecting piece between the lug and the lug fixing plate in the prior art, but also omits the wire connection between the lug fixing plate and a circuit board, and has the advantages of simple connection process, low cost, high connection strength and the like.

Description

Battery cell combination and battery assembly adopting same

Technical Field

The utility model relates to a battery, concretely relates to electric core subassembly and lithium cell subassembly for electric motor car.

Background

Because the lithium battery has the advantages of high specific energy, long service life and the like, more and more electric vehicle manufacturers use the lithium battery as a power source of the electric vehicle. Utmost point ear is the carrier of battery and external energy transfer, and in order to fix utmost point ear better, often adopt utmost point ear connecting plate fixed utmost point ear among the prior art, then pass through the electric wire with the utmost point ear connecting plate and be connected with the circuit board, the battery that adopts this kind of structure has the structure complicacy, the battery is inside to have many electric wires, can arouse when rocking that the electric wire splits and easy short circuit has shortcomings such as potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides an electricity core combination, utmost point ear and circuit board lug weld together in this electricity core combination, adopt the mode of hard joint between the two, consequently firm in connection can not take place because of the circumstances such as the electric wire fracture that lead to rocks, short circuit.

The utility model discloses a solve the technical scheme that its technical problem adopted and be:

the utility model provides an electricity core combination, includes chipset, insulation board and circuit board, the chipset is formed by a plurality of single battery chip combinations, and every battery chip has the up end and the lower terminal surface relative with the up end, this up end is located to the insulation board lid, the circuit board is arranged in on this insulation board, be equipped with positive pole, negative pole utmost point ear on the up end, utmost point ear passes insulation board and circuit board fixed connection.

Preferably, the tab comprises a first connecting portion and a second connecting portion, the second connecting portion is fixedly connected to the upper end surface, the second connecting portion is bent upwards to form the first connecting portion, and the first connecting portion and the second connecting portion form an L-shaped structure.

Preferably, the insulating plate is provided with a plurality of first jacks, the circuit board is provided with second jacks corresponding to the first jacks, the first connecting portion sequentially penetrates through the first jacks and the second jacks, and the first connecting portion and the second jacks are welded and fixed through a soldering process.

Preferably, the shell of the battery chip is made of hard materials, and the tabs are copper sheets.

The utility model also provides an adopt battery pack of electric core combination, including the battery case and arrange inside electric core combination and the backup pad of this battery case in, on this backup pad was arranged in to the lower terminal surface of battery chip, the lid of this box body was located including box body and sealed lid to the battery case.

Preferably, the support plate is provided with a plurality of slots, and the lower end face of the battery chip is vertically inserted into the slots.

Preferably, the insulating plate is provided with a plurality of fixing posts, and when the battery cell assembly is placed in the battery box, the fixing posts are tightly pressed against the cover body.

Preferably, the lower edge of the cover body is provided with a circle of grooves, the upper edge of the box body is provided with a circle of bulges, and the bulges are just inserted into the grooves in an assembly mode.

Preferably, the lower edge of the cover body is provided with a plurality of blind holes, embedded copper studs are arranged in the blind holes, the upper edge of the box body is provided with a plurality of through holes, and during assembly, screws penetrate through the through holes and are locked in the copper studs.

Preferably, the cover body is provided with a handle, and the cover body is also provided with an AC standard socket hole.

The utility model has the advantages that:

1) the battery cell combination comprises a chip set, an insulating plate and a circuit board, wherein a lug in the chip set is of an L-shaped structure, and a first connecting part of the lug is directly connected with the circuit board and is fixed by welding, so that a lug fixing plate and an auxiliary connecting piece between the lug and the lug fixing plate in the prior art are omitted, and meanwhile, the wire connection between the lug fixing plate and the circuit board is also omitted, so that the battery cell combination has the advantages of simple connecting process, low cost, high connecting strength and the like;

2) the utility model adopts the insulating board and the supporting board to fix the chip group, wherein the insulating board is used for isolating the chip group and the circuit board and plays an insulating role, the insulating board is provided with a plurality of fixing columns, and the fixing columns are inserted in the cover body during installation to prevent the internal parts such as the chip group and the like from shaking in the battery box; a certain distance is kept between the chipset and the periphery of the box body, so that the heat of the chipset is conveniently dissipated in time; the utility model has the advantages of simple integral structure, easy dismounting, anti-seismic performance is high, has wide market and application prospect.

Drawings

Fig. 1 is a schematic structural view of a cell assembly and a support plate according to the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of the chip set of the present invention;

FIG. 4 is a schematic structural view of the insulating plate of the present invention;

fig. 5 is a schematic structural diagram of a battery module according to the present invention;

fig. 6 is an exploded view of a battery module according to the present invention;

FIG. 7 is a schematic structural view of the box body of the present invention;

fig. 8 is a flow chart illustrating the assembly of the battery pack according to the present invention;

in the figure: 10-chip group, 11-upper end face, 12-lower end face, 13-pole ear, 14-first connecting part, 15-second connecting part, 20-insulating plate, 21-first jack, 22-fixed column, 30-circuit board, 31-second jack, 40-supporting plate, 41-slot, 50-box body, 51-bulge, 52-through hole, 53-arc body, 60-cover body, 61-handle and 62-socket hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Example (b): as shown in fig. 1 to 4, a battery cell assembly includes a chip set 10, an insulating plate 20 and a circuit board 30, where the chip set 10 is formed by combining a plurality of single battery chips, each battery chip has an upper end surface 11 and a lower end surface 12 opposite to the upper end surface, the insulating plate 20 covers the upper end surface 11, the circuit board 30 is disposed on the insulating plate 20, the upper end surface 11 is provided with a positive electrode tab 13 and a negative electrode tab 13, the tabs 13 penetrate through the insulating plate 20 and are fixedly connected to the circuit board 30, a housing of each battery chip is made of a hard material, and the tabs 13 are copper sheets. The utility model discloses utmost point ear 13 among the well battery chip is direct to be connected with circuit board 30, has not only left out the utmost point ear connecting plate among the traditional handicraft, need not use the connection of electric lines moreover, has consequently reduced the cost of electric core combination, has simplified the mounting process, adopts the rigid coupling to improve joint strength between chipset and the circuit board, can not arouse the cracked condition of junction to take place owing to rock, does not use any electric wire moreover, also does not have the security problem that brings because of the electric wire fracture, the short circuit that ageing etc. arouse.

As shown in fig. 3, the tab 13 includes a first connection portion 14 and a second connection portion 15, the second connection portion 15 is fixedly connected to the upper end surface 11, the second connection portion 15 is bent upward to form the first connection portion 14, and the first connection portion and the second connection portion form an L-shaped structure.

As shown in fig. 4, a plurality of first insertion holes 21 are formed in the insulating plate 20, second insertion holes 31 corresponding to the first insertion holes are formed in the circuit board 30, the first connecting portion 14 sequentially penetrates through the first insertion holes and the second insertion holes, and the first connecting portion 14 and the second insertion holes 31 are welded and fixed through a soldering process.

Adopt the utmost point ear of L type structure, can carry out 360 installations, consequently, the production technology has been simplified, the first connecting portion 14 of utmost point ear is direct to be connected with the circuit board, it is fixed to rethread welding, the utmost point ear fixed plate among the prior art has not only been left out, and the auxiliary connection spare between utmost point ear and the utmost point ear fixed plate, the connection of electric lines between utmost point ear fixed plate and the circuit board has also been left out simultaneously, it is simple to have a connection technology, with low costs, joint strength is high and anti-vibration performance advantage such as good, the mode of adopting utmost point ear and circuit board lug direct connection is a major technological breakthrough and innovation in this technical field.

As shown in fig. 5 to 7, a battery assembly using the above cell assembly is characterized in that: the battery pack comprises a battery box, a battery core assembly and a support plate 40, wherein the battery core assembly and the support plate 40 are arranged in the battery box, the lower end face 12 of a battery chip is arranged on the support plate 40, and the battery box comprises a box body 50 and a cover body 60, wherein a sealing cover is arranged on the box body. The battery component comprises a chip set 10, an insulating plate 20, a circuit board 30, a support plate 40, a box body 50 and a cover body 60, wherein the insulating plate 20 is used for fixing the upper end face of the chip set and isolating the chip set from the circuit board to play an insulating role, when the battery component is assembled, firstly, the battery chips in the chip set are inserted into slots 41 of the support plate one by one, then, the insulating plate 20 is covered on the chip set, a lug 13 penetrates through a first jack 21 on the insulating plate, then, the circuit board 30 is arranged on the insulating plate 20 and penetrates through a second jack 31 on the circuit board, and finally, the lug is welded on the circuit board through tin soldering, so that an assembled inner part is formed; the inner part is then placed in the box body 50, and the cover body 60 is covered to lock the screw.

The supporting plate 40 is provided with a plurality of slots 41, the lower end surface 12 of the battery chip is vertically inserted into the slots, as shown in fig. 4, the insulating plate 20 is provided with a plurality of fixing posts 22, when the cell assembly is placed in the battery box, the fixing posts 22 are tightly pressed against the cover body 60, so that the cell assembly can be firmly fixed inside the battery box, in this embodiment, four fixing posts are provided, and two fixing posts are provided on two sides of the insulating plate.

The lower limb of lid 60 is equipped with the round recess, the top edge of box body 50 is equipped with the protruding 51 of round, and the assembled, this arch 51 just inserts in the recess, the lower limb of lid 60 is equipped with a plurality of blind hole, be equipped with embedded copper stud in the blind hole, the top edge of box body is equipped with a plurality of through-holes 52, during the assembly, passes the screw behind the through-hole and locks in the copper stud. In the embodiment, the cover body and the box body are in cuboid shapes, blind holes and through holes are respectively formed in the four corner ends and the middle position of each edge of the cover body and the box body, and screws are locked into the blind holes of the cover body from the lower side of the box body, so that a waterproof effect can be achieved; the groove can also be used as a water diversion groove, so that the screw is further prevented from rusting and the like caused by the fact that water enters the screw; during installation, the cover body covers the box body, the bulge 51 on the box body is inserted into the groove of the cover body, the screw penetrates through the lower portion of the upper edge of the box body, and the screw is locked in the through hole and the blind hole, so that the connection strength of the cover body and the box body is further improved.

As shown in fig. 5 and 6, a handle 61 is mounted on the cover, an AC standard socket hole 62 is further formed in the cover, a socket is fixed in the socket hole 62 and electrically connected to a circuit board, inward concave arc bodies 53 are formed at four corner ends of the cover and the box, and an inward concave arc body 53 is also formed on the inner side wall of the box, so that the strength of the box can be improved, when the battery is mounted, a battery cell assembly is inserted into a slot of the support plate 40, the assembly is placed into the box 50, the cover 60 is covered, and the fixing posts 22 on the insulating plate are pressed against the inner side of the cover, so that the whole battery cell assembly is fixed in the battery box, and no auxiliary fixing members such as screws are used in the whole fixing process, so that the assembly is simple and fast, gaps exist between the periphery of the battery cell assembly and the box, and heat dissipation is facilitated; in the installation process, the battery core combination is installed and then placed into the battery box, so that the abrasion to the box body in the installation process is reduced.

The utility model discloses an operation process: as shown in fig. 8, firstly, the battery chip in the chipset is inserted into the slot 41 of the supporting plate, then the insulating plate 20 is covered on the chipset, and the tab 13 is made to pass through the first insertion hole 21 on the insulating plate, then the circuit board 30 is placed on the insulating plate 20, and the tab is made to pass through the second insertion hole 31 on the circuit board, and finally the tab is soldered on the circuit board by soldering, thereby forming the installed internal component; the inner part is then placed in the box body 50, and the cover body 60 is covered to lock the screw.

It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An electricity core combination which characterized in that: including chipset (10), insulation board (20) and circuit board (30), chipset (10) are formed by the combination of a plurality of single battery chip, and every battery chip has up end (11) and lower terminal surface (12) relative with the up end, this up end (11) are located in insulation board (20) lid, circuit board (30) are arranged in on this insulation board (20), be equipped with positive pole, negative pole utmost point ear (13) on up end (11), utmost point ear (13) pass insulation board (20) and circuit board (30) fixed connection.

2. The cell combination of claim 1, wherein: the tab (13) comprises a first connecting portion (14) and a second connecting portion (15), the second connecting portion (15) is fixedly connected to the upper end face (11), the second connecting portion (15) is bent upwards to form the first connecting portion (14), and the first connecting portion and the second connecting portion form an L-shaped structure.

3. The cell combination of claim 2, wherein: the insulating board (20) is provided with a plurality of first jacks (21), the circuit board (30) is provided with second jacks (31) corresponding to the first jacks, the first connecting parts (14) sequentially penetrate through the first jacks and the second jacks, and the first connecting parts (14) and the second jacks (31) are welded and fixed through a soldering process.

4. The cell combination of claim 1, wherein: the shell of the battery chip is made of hard materials, and the tabs (13) are copper sheets.

5. A battery assembly employing the cell assembly of any of claims 1-4, wherein: the battery pack comprises a battery box, a battery core assembly and a support plate (40), wherein the battery core assembly and the support plate (40) are arranged in the battery box, the lower end face (12) of a battery chip is arranged on the support plate (40), and the battery box comprises a box body (50) and a cover body (60) which is arranged on the box body in a sealing manner.

6. The battery assembly of claim 5, wherein: the supporting plate (40) is provided with a plurality of slots (41), and the lower end face (12) of the battery chip is vertically inserted into the slots.

7. The battery assembly of claim 5, wherein: the insulating plate (20) is provided with a plurality of fixing columns (22), and when the battery cell assembly is arranged in the battery box, the fixing columns (22) are tightly propped against the inside of the cover body (60).

8. The battery assembly of claim 5, wherein: the lower edge of the cover body (60) is provided with a circle of groove, the upper edge of the box body (50) is provided with a circle of bulge (51), and the bulge (51) is just inserted into the groove in an assembly mode.

9. The battery assembly of claim 8, wherein: the lower edge of the cover body (60) is provided with a plurality of blind holes, embedded copper studs are arranged in the blind holes, the upper edge of the box body is provided with a plurality of through holes (52), and during assembly, screws penetrate through the through holes and are locked in the copper studs.

10. The battery assembly of claim 9, wherein: a handle (61) is arranged on the cover body, and an AC standard socket hole (62) is also arranged on the cover body.