阅读说明：本技术 双层电池模组以及电池包 (Double-layer battery module and battery pack ) 是由 陈斌 邱福生 于 2019-10-10 设计创作，主要内容包括：本发明提供了双层电池模组以及电池包,双层电池模组包括：层叠电池组,层叠电池组包括沿第一方向上下层叠的电池模组,电池模组沿第二方向的两端分别设有向外引出的接线铜排；以及一对连接端板,连接端板包括一端板本体和至少一组高压接线固定组件,端板本体的第一侧沿第二方向夹持层叠电池组的两侧,每个连接端板对应不同电池模组的区域分别设有两个供电池模组的接线铜排穿过的第一通孔和一个供电池模组的低压引线穿过的第二通孔,接线铜排通过第一通孔自端板本体的第二侧露出后与连接铜排电连接,层叠电池组同一侧的不同电池模组的接线铜排之间通过连接铜排电连接。本发明具有集成度高、安装方便,强度高,体积小的优点。(The invention provides a double-layer battery module and a battery pack, wherein the double-layer battery module comprises: the stacked battery pack comprises battery modules stacked up and down along a first direction, and two ends of each battery module along a second direction are respectively provided with a wiring copper bar led out outwards; and a pair of connection end plate, it includes an end plate body and at least a set of high-voltage wiring fixed subassembly to connect the end plate, the both sides of the range upon range of group battery of second direction centre gripping are followed to the first side of end plate body, every region of connecting the end plate and corresponding different battery module is equipped with the second through-hole that two first through-holes that supply the wiring copper bar of battery module to pass and the low voltage lead wire of a confession battery module to pass respectively, the wiring copper bar exposes the back and is connected with connecting the copper bar electricity from the second side of end plate body through first through-hole, range upon range of group battery is connected through connecting the copper bar electricity between. The invention has the advantages of high integration level, convenient installation, high strength and small volume.)

1. A double-layer battery module, comprising:

the stacked battery pack comprises battery modules (1) stacked up and down along a first direction, two ends of each battery module (1) along a second direction are respectively provided with a wiring copper bar led out outwards, and the first direction is perpendicular to the second direction; and

a pair of connection end plate (2), it includes an end plate body (20) and at least a set of high-voltage connection fixed subassembly to connect end plate (2), the centre gripping is followed to the first side of end plate body (20) second direction the both sides of range upon range of group battery, every it is different to connect end plate (2) correspondence the region of battery module (1) is equipped with two confessions respectively first through-hole (21) and one confession that the wiring copper bar of battery module (1) passed second through-hole (22) that the low pressure lead wire of battery module (1) passed, the wiring copper bar passes through first through-hole (21) certainly the second side of end plate body (20) exposes the back and is connected the copper bar electricity and is connected, range upon range of group battery is different with one side through connecting the copper bar electricity and connecting between the wiring copper bar of battery module (1.

2. The double-layered battery module according to claim 1, wherein the high-voltage wiring fixing member comprises:

the copper bar fixing piece (25) is connected to the second side of the end plate body (20); and

a copper bar fixed bolster (26), peg graft in the first side of copper bar mounting (25) copper bar fixed bolster (26), the second side of copper bar mounting (25) supports the wiring copper bar, it is one to connect the first end spiro union of copper bar the wiring copper bar that battery module (1) was drawn forth, second end spiro union is another the wiring copper bar that battery module (1) was drawn forth with copper bar mounting (25).

3. The double-layer battery module according to claim 2, wherein the copper bar fixing member (25) is provided with a first positioning hole (251), a second positioning hole (252) and a third positioning hole (253) which all extend in the first direction;

copper bar fixed bolster (26) has included an insulation protective housing (261), insulation protective housing (261) follow the first side of first direction be equipped with one with the spiro union fixed orifices (262) of wiring copper bar face contact, follow the second side of first direction is equipped with location tenon (263), first location shell fragment (264) and second location shell fragment (265), location tenon (263) are pegged graft first locating hole (251), first location shell fragment (264) with second locating hole (252) block, third locating hole (253) with third locating hole (253) block.

4. The double-layered battery module according to claim 3, wherein the second through holes (22) are provided in the central axis of the connection end plate (2) along the first direction, and the first through holes (21) are symmetrically distributed on both sides of the central axis along the first direction.

5. The double-layer battery module according to claim 4, wherein an insulating baffle (266) is arranged on one side of the copper bar fixing piece (25) away from the central axis, and the insulating baffle (266) shields one side of the wiring copper bar.

6. The double-layer battery module according to claim 3, wherein the first positioning hole (251), the second positioning hole (252) and the third positioning hole (253) are arranged in this order from a side facing the central axis to a side facing away from the central axis in the third direction, and the third direction is arranged perpendicular to a plane formed by the first direction and the second direction.

7. The double-layer battery module according to claim 1, further comprising an insulating frame member (27), wherein the insulating frame member (27) is sleeved with the periphery of the first through hole (21) to isolate the wiring copper bar from the first through hole (21).

8. The double-layer battery module as claimed in claim 1, wherein the connecting copper bars connect electrodes of the same polarity of different battery modules (1), and the two battery modules (1) are connected in parallel.

9. The double-layer battery module as claimed in claim 1, wherein the connecting copper bars connect electrodes of different polarities of different battery modules (1), and the two battery modules (1) are connected in series.

10. A battery pack, wherein the battery includes at least one double-layered battery module according to any one of claims 1 to 9.

Technical Field

The invention relates to the field of electric connectors in vehicles, in particular to a double-layer battery module and a battery pack.

Background

The current power battery module generally has an end plate at each of two ends, the end plate is formed by extruding an aluminum profile through machining, a round or long round hole extruded from the profile is a mounting hole of the power battery module, and the battery module is fixed in a box body through a long bolt and the module mounting hole in mechanical connection. If adopt double-deck battery module to arrange in the box, need design and install upper module fixed bolster, then the reuse stay bolt is fixed with upper battery module, and structural design is complicated, and intensity is not high, installs more loaded down with trivial details, inefficiency.

In view of the above, the present invention provides a double-layer battery module.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a double-layer battery module and a battery pack, which overcome the difficulties in the prior art and have the advantages of high integration level, convenience in installation, high strength and small volume.

An embodiment of the present invention provides a double-layered battery module, including:

the stacked battery pack comprises battery modules stacked up and down along a first direction, two ends of each battery module along a second direction are respectively provided with a wiring copper bar led out outwards, and the first direction is perpendicular to the second direction; and

a pair of connection end plate, it includes an end plate body and at least a set of high-voltage connection fixed subassembly to connect the end plate, the centre gripping is followed to the second direction to first side of end plate body the both sides of range upon range of group battery, every it corresponds the difference to connect the end plate the region of battery module is equipped with two confessions respectively first through-hole and the confession that the wiring copper bar of battery module passed the second through-hole that the low pressure lead wire of battery module passed, the wiring copper bar passes through first through-hole certainly the second side of end plate body exposes the back and is connected the copper bar electricity and be connected, range upon range of group battery is with the difference of one side through connecting the copper bar electricity between the wiring.

Preferably, the high voltage wiring fixing assembly includes:

the copper bar fixing piece is connected to the second side of the end plate body; and

a copper bar fixed bolster, peg graft in the first side of copper bar mounting the copper bar fixed bolster, the second side support of copper bar mounting the wiring copper bar, the first end spiro union of connecting the copper bar is one the wiring copper bar that the battery module was drawn forth, and second end spiro union is another the wiring copper bar that the battery module was drawn forth with the copper bar mounting.

Preferably, the copper bar fixing piece is provided with a first positioning hole, a second positioning hole and a third positioning hole which extend along the first direction;

the copper bar fixing support comprises an insulating protective shell, wherein a bolt connection fixing hole in contact with the wiring copper bar surface is formed in the first side of the insulating protective shell in the first direction, a positioning tenon, a first positioning elastic sheet and a second positioning elastic sheet are arranged on the second side of the first direction, the positioning tenon is inserted into the first positioning hole, the first positioning elastic sheet is clamped with the second positioning hole, and the third positioning hole is clamped with the third positioning hole.

Preferably, the second through holes are formed in the central axis of the connecting end plate along the first direction, and the first through holes are symmetrically distributed on two sides of the central axis along the first direction.

Preferably, one side of the copper bar fixing piece, which deviates from the central axis, is provided with an insulating baffle, and the insulating baffle shields one side of the wiring copper bar.

Preferably, the first positioning hole, the second positioning hole and the third positioning hole are sequentially arranged from one side facing the central axis to one side away from the central axis along the third direction, and the third direction is perpendicular to a plane formed by the first direction and the second direction.

Preferably, the connector further comprises an insulating frame piece, wherein the insulating frame piece is sleeved on the periphery of the first through hole to isolate the wiring copper bar from the first through hole.

Preferably, the second side of the connecting end plate is further provided with a screw seat extending along the first direction.

Preferably, the connecting copper bar is connected with electrodes with the same polarity of the battery modules, and the two battery modules are connected in parallel.

Preferably, the connecting copper bar is connected with electrodes with different polarities of the battery modules, and the two battery modules are connected in series.

An embodiment of the invention provides a battery pack, wherein the battery comprises at least one double-layer battery module.

The double-layer battery module and the battery pack provided by the invention have the advantages of high integration level, convenience in installation, high strength and small size.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.

Fig. 1 is a schematic view of a double-layered battery module according to the present invention.

Fig. 2 is a schematic view of a battery module in a double-layered battery module according to the present invention.

Fig. 3 is a schematic view of a connection end plate in the double-layered battery module according to the present invention.

Fig. 4 is a schematic view of the connection between the connection end plate and the copper bar fixing bracket in the double-layer battery module of the present invention.

Fig. 5 is a schematic view of a copper bar fixing member in the double-layer battery module of the present invention.

Fig. 6 is a schematic view illustrating the connection between the copper bar fixing bracket and the copper bar fixing member in the double-layered battery module according to the present invention.

Fig. 7 is a schematic view illustrating series connection of battery modules in a double-layered battery module according to the present invention. And

fig. 8 is a schematic view illustrating parallel connection of battery modules in a double-layered battery module according to the present invention.

Reference numerals

1 Battery module

11 screw hole

12 high voltage output terminal

13 first wiring copper bar

14 second wiring copper bar

15 right-angle connecting copper bar

16 straight line connection copper bar

2 connecting end plate

20 end plate body

21 first through hole

22 second through hole

25 copper bar fixing piece

251 first positioning hole

252 second positioning hole

253 third positioning hole

26 copper bar fixing support

261 insulation protection shell

262 screw-joint fixing hole

263 positioning tenon

264 first positioning spring sheet

265 second positioning spring plate

266 insulating barrier

27 insulating frame

28 screw connection seat

29 module carrying hook

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.

Fig. 1 is a schematic view of a double-layered battery module according to the present invention. Fig. 2 is a schematic view of a battery module in a double-layered battery module according to the present invention. Fig. 3 is a schematic view of a connection end plate in the double-layered battery module according to the present invention. Fig. 4 is a schematic view of the connection between the connection end plate and the copper bar fixing bracket in the double-layer battery module of the present invention. Fig. 5 is a schematic view of a copper bar fixing member in the double-layer battery module of the present invention. Fig. 6 is a schematic view illustrating the connection between the copper bar fixing bracket and the copper bar fixing member in the double-layered battery module according to the present invention. As shown in fig. 1 to 6, the double-layered battery module according to the present invention includes: a stack of battery cells and a pair of connection end plates 2, and the battery module 1 in this embodiment is screwed to the connection end plates 2 on both sides through screw holes 11 along the second direction (X direction), respectively. Two sides of the battery module 1 are respectively provided with a high-voltage output wiring terminal 12 of a first wiring copper bar 13 (a copper bar connected with the negative electrode) or a second wiring copper bar 14 (a copper bar connected with the positive electrode) which are connected. The stacked battery pack comprises a battery module 1 stacked up and down along a first direction (Y direction), the two ends of the battery module 1 along a second direction (X direction) are respectively provided with a wiring copper bar led out outwards, and the first direction (Y direction) is perpendicular to the second direction (X direction). Connect end plate 2 and include an end plate body 20 and at least a set of high-voltage connection fixed subassembly, the both sides of the range upon range of group battery of second direction (X direction) centre gripping are followed to the first side of end plate body 20, every region of connecting end plate 2 and corresponding different battery module 1 is equipped with two first through-holes 21 that supply the wiring copper bar of battery module 1 to pass and a second through-hole 22 that supplies the low voltage lead wire of battery module 1 to pass respectively, the wiring copper bar exposes the back and is connected the copper bar electricity from the second side of end plate body 20 through first through-hole 21, the range upon range of group battery is connected through connecting the copper bar electricity between the wiring copper bar of different battery modules 1 with. In this embodiment, the first through-hole 21 is a high-voltage harness lead-out hole for high-voltage output of the battery module,

the second through hole 22 is a low-voltage wiring harness lead-out hole for low-voltage output of the battery module, and the insulating frame 27 is sleeved with the periphery of the first through hole 21 to isolate the wiring copper bar from the first through hole 21. The second side of the connection end plate 2 is further provided with a screw seat 28 extending in a first direction (Y direction).

In this embodiment, the high-voltage wiring fixing component includes: a copper bar fixing piece 25 and a copper bar fixing bracket 26 which are connected. The copper bar fixing member 25 is connected to the second side of the end plate body 20. Copper bar fixed bolster 26 is pegged graft to first side of copper bar mounting 25, and the second side of copper bar mounting 25 supports wiring copper bar, connects the wiring copper bar that battery module 1 of first end spiro union of copper bar was drawn forth, wiring copper bar and copper bar mounting 25 that another battery module 1 of second end spiro union was drawn forth. The copper bar fixing member 25 has a first positioning hole 251, a second positioning hole 252 and a third positioning hole 253 extending along a first direction (Y direction). Copper bar fixed bolster 26 has included an insulation protective housing 261, the first side of insulation protective housing 261 along first direction (Y direction) is equipped with a spiro union fixed orifices 262 with wiring copper bar face contact, the second side along first direction (Y direction) is equipped with location tenon 263, first location shell fragment 264 and second location shell fragment 265, location tenon 263 grafting first locating hole 251, first location shell fragment 264 and second locating hole 252 block, third locating hole 253 and third locating hole 253 block.

In a preferred embodiment, the second through holes 22 are disposed on the central axis of the connection end plate 2 along the first direction (Y direction), and the first through holes 21 are symmetrically distributed on two sides of the central axis along the first direction (Y direction).

In a preferred embodiment, an insulating baffle 266 is disposed on a side of the copper bar fixing member 25 away from the central axis, and the insulating baffle 266 shields a side of the wiring copper bar.

In a preferred embodiment, the first positioning hole 251, the second positioning hole 252, and the third positioning hole 253 are sequentially arranged from a side facing the central axis to a side facing away from the central axis along a third direction (Z direction) which is perpendicular to a plane formed by the first direction (Y direction) and the second direction (X direction).

In a preferred embodiment, the connecting end plate 2 is further provided with a module carrying hook 29, and the module carrying hook 29 and a carrying tool positioning guide hole are used for mounting, carrying and fixing the positioning of a tool during disassembly of the module, so that the module can be conveniently moved. The two sides of the connecting end plate 2 are provided with reinforcing ribs for fixing and reinforcing, and the fixing strength after connection is improved.

The double-layer battery module can form a series connection or parallel connection mode through different connecting copper bars:

fig. 7 is a schematic view illustrating series connection of battery modules in a double-layered battery module according to the present invention. As shown in fig. 7, the connecting copper bar is a right-angle connecting copper bar 15 for connecting the electrodes of different polarities of different battery modules 1, and the two battery modules 1 are connected in series. One end of the right-angle connecting copper bar 15 is connected with the anode of the upper battery module 1, and the other end of the right-angle connecting copper bar is connected with the cathode of the lower battery module 1, so that a series circuit relation is formed between the upper battery module 1 and the lower battery module 1.

Fig. 8 is a schematic view illustrating parallel connection of battery modules in a double-layered battery module according to the present invention. As shown in fig. 8, the connecting copper bar is a straight connecting copper bar 16 connecting the electrodes of the same polarity of different battery modules 1, and the two battery modules 1 are connected in parallel. One end of the straight line connecting copper bar 16 is connected with the cathode of the upper battery module 1, and the other end is connected with the cathode of the lower battery module 1, so that a parallel circuit relation is formed between the upper battery module 1 and the lower battery module 1.

An embodiment of the invention provides a battery pack, where the battery includes at least one double-layer battery module as described above, where the structure and characteristics of the double-layer battery module are as described above, and are not described herein again.

In conclusion, the double-layer battery module and the battery pack provided by the invention have the advantages of high integration level, convenience in installation, high strength and small size.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.