CN213905486U - Battery module based on battery is set up to electrode opposite terminal - Google Patents

Abstract

The utility model discloses a battery module based on electrode opposite end sets up battery, including arranging a plurality of batteries that set up in the module frame. The battery is a square strip body, and the polar columns of the positive and negative poles are respectively positioned on the end faces of the front and rear ends of the battery in the strip direction and are arranged into a battery row in an end face alignment mode. The number of the batteries is even, and the positive and negative electrodes of the batteries are arranged in a staggered manner. The module frame includes the side end plate of two blocks of being on a parallel with the battery and sets up a plurality of U-shaped laths at battery row top and bottom, and the side end plate is connected to the U-shaped lath. The front end face and the rear end face of the battery row are respectively provided with a connecting component through a wiring harness isolation plate. Wherein the connecting component at the front end is connected with an outgoing electrode. The flexible circuit board in the two connecting components is connected to a connector arranged outside the side end plate through the side connecting plate. Compare in traditional structure, the utility model discloses can bring bigger energy density to temperature control system in the battery box can the direct action in the battery, thereby improves temperature control efficiency.

Description

Battery module based on battery is set up to electrode opposite terminal

Technical Field

The utility model relates to a battery module.

Background

In the prior art, the battery pack is generally implemented in two ways. The first method is to form a battery module by a plurality of batteries and then form a battery by a plurality of battery modules. The second method is to pack the batteries directly to form a battery pack. Regardless of the type of package assembly, the positive and negative poles of the battery are typically located on the top surface of the battery. When the battery pack is used, the battery and the battery are connected by corresponding accessories, such as a connecting bar and a collecting circuit for collecting the temperature and the voltage of the battery. In the case where the positive and negative electrodes of the battery are located on the top surface of the battery, the connection fittings above the battery will occupy a large space. The space occupied by this part of the connection fitting is not very space efficient. The battery pack is determined by the whole area of a battery box of the battery pack, and the batteries are arranged in the battery box in a code row mode no matter the mode that the batteries form a battery module or the mode that the batteries are directly packed into the battery pack, and at the moment, a connecting row or a collecting line needs to be spread over the whole area of the battery box body. More specifically, the distance between the battery post and the battery post is too long, and the length of the connection row or the collection line to be connected is too long.

In addition, in the conventional battery module structure, the bottom plate of the battery module bottom for supporting the bottom of the battery needs to cover the bottom surface of the entire battery module. Under this kind of structure, separate one deck battery module bottom plate between liquid cold plate in the battery box and hot plate and the battery, reduced the temperature control efficiency of battery box liquid cold plate and hot plate from this.

Disclosure of Invention

The utility model discloses the problem that will solve:

1. the energy density of the battery pack is improved;

2. the battery in the battery module is improved, the laminating degree between the battery pack liquid cooling plate and the heating plate is improved, and the temperature control efficiency is improved.

In order to solve the above problem, the utility model discloses a scheme as follows:

a battery module based on batteries arranged at opposite ends of electrodes comprises a module frame and a plurality of batteries arranged in the module frame, wherein the batteries are square strip bodies, and polar columns of a positive electrode and a negative electrode are respectively positioned on the end faces of the front end and the rear end of the battery in the strip direction; the batteries are arranged in the module frame in a mode that the front end face and the rear end face in the long strip direction are aligned to form a battery row; in the battery row, the positive electrode and the negative electrode of the battery are arranged in a staggered manner; the end faces of the front end and the rear end of the battery row are respectively provided with a connecting assembly through a wire harness isolation plate; the wiring harness isolation plate on the end face of the front end of the battery row is a first wiring harness isolation plate and is provided with a first connecting assembly; the wire harness isolation plate on the end face of the rear end of the battery row is a second wire harness isolation plate and is provided with a second connecting assembly; the first connecting assembly and the second connecting assembly respectively comprise a connecting row for serially connecting the batteries; the first connecting assembly further comprises an output pole lug and a first collecting line; the second connecting assembly further comprises a second collecting line; the output pole lug is connected with the pole of the battery through a pole lug row; the first acquisition circuit comprises a first flexible circuit board, a first side connecting plate and a first connector; the first flexible circuit board is arranged on the first wire harness isolation plate; the first connector is connected with the first flexible circuit board through the first side connecting plate; the second acquisition circuit comprises a second flexible circuit board, a second side connecting plate and a second connector; the second flexible circuit board is arranged on the second wire harness isolation plate; the second connector is connected with the second flexible circuit board through the second side connecting plate; the two output pole lugs are respectively positioned on two sides of the front end of the battery module; the first connector and the second connector are respectively positioned on two sides of the rear end of the battery module.

Further, the module frame comprises two side end plates and a plurality of U-shaped battens; the two side end plates are respectively vertically arranged at two sides of the battery row; the U-shaped battens are divided into bottom U-shaped battens and top U-shaped battens; the bottom U-shaped strip plate is arranged below the battery row, and two ends of the bottom U-shaped strip plate are respectively connected with the two side end plates; the top U-shaped strip plate is arranged above the battery row, and two ends of the top U-shaped strip plate are respectively connected with the two side end plates; the first side connecting plate and the second side connecting plate are respectively tightly attached to the outer side surfaces of the two side end plates; the first connector and the second connector are respectively arranged on the two side end plates and are positioned on the outer side surface of the rear end of each side end plate.

Further, the side end plate is hollowed in the vertical direction and comprises a main bearing plate and a plurality of bosses arranged at the top of the main bearing plate; the height of the main bearing plate is lower than that of the battery; the top of the boss is flush with the top surface of the battery; a first sinking platform used for connecting the top U-shaped strip plate is arranged on the outer side of the boss; and a second sinking platform used for connecting the bottom U-shaped strip plate is arranged on the outer side below the main bearing plate.

Furthermore, the U-shaped strip plate is made of a strip-shaped metal plate body and comprises a main strip plate positioned in the middle and end buckle plates respectively positioned at two ends, wherein the main strip plate is formed by bending the two ends of the strip-shaped metal plate body; the end buckle plate of bottom U-shaped slat is connected respectively the heavy platform of second, the end buckle plate of top U-shaped slat is connected respectively first heavy platform makes the main slat of bottom U-shaped slat is in each battery is spanned to the below of battery row and provides the bottom sprag for each battery, the main slat of top U-shaped slat is in each battery is spanned and is held each battery to the top of battery row.

Furthermore, the main ribbon board of each bottom U-shaped ribbon board covers 20% -80% of the area of the bottom of the battery row below the battery row.

Furthermore, a third sinking platform used for arranging the first connector or the second connector is arranged on the outer side of the rear end of the main bearing plate.

Further, a fourth sinking platform used for arranging a first side connecting plate is arranged between the first sinking platform and the second sinking platform; the first side connecting plate is arranged on the fourth sinking platform through a fastening nail.

Furthermore, a lug inserting hole is formed in the front end of the side end plate in the vertical direction, and an output electrode support piece is arranged through the lug inserting hole; the output pole lug is connected with the output pole support piece.

Further, the wire harness isolation plate comprises a main isolation plate, a plurality of vertical isolation plates arranged on the main isolation plate and a plurality of connecting holes arranged on the main isolation plate; the vertical partition plates comprise edge vertical partition plates and hole edge vertical partition plates; the hole edge vertical partition plate is arranged at the edge of the connecting hole; the edge vertical partition plate is arranged at the edge of the main partition plate; the connecting holes are arranged in rows; circuit board grooves which are formed by the separation of the edge vertical partition boards and the hole edge vertical partition boards are arranged along the two sides of the arrangement direction of the connecting holes; a communicating groove for communicating the circuit board grooves on the two sides is arranged between the adjacent connecting holes; the circuit board slot is used for arranging the first flexible circuit board or the second flexible circuit board; the connecting row is arranged in the connecting hole and is connected with the pole columns on the end faces of the front end and the rear end of the battery row.

Furthermore, the connecting hole is square, and two opposite corners are respectively provided with a front clamping part and a rear clamping part; the run-on card is between preceding screens portion and back screens portion.

The technical effects of the utility model are as follows:

1. compare in the battery module of traditional structure, the utility model discloses a under the battery module, coupling assembling is located the battery module tip, has shortened the distance between utmost point post and the utmost point post from this to coupling assembling's space utilization has been promoted, thereby the space utilization who promotes the battery package on the whole improves battery package energy density.

2. The bottom plate for supporting the batteries at the bottom of the battery module is not covered integrally, so that when the batteries are placed in the battery box to form the battery pack, the liquid cooling plate and the heating plate in the battery box can be directly attached to the batteries in the battery module without a module bottom plate at the middle.

3. The low-voltage wiring harness interface and the high-voltage wiring harness are respectively arranged at two ends of the battery module, so that mutual interference can be reduced.

4. Compare in the battery module of traditional structure, the utility model discloses a battery module simple structure has reduced a lot of spare parts, and it is more convenient to install.

5. The top and bottom of the module are of an incomplete covering structure, thereby reducing the weight of the top and bottom plates of the module.

Drawings

Fig. 1 is an exploded view of the overall structure of the battery module according to the embodiment of the present invention.

Fig. 2 is a schematic perspective view of the overall structure of the battery module according to the embodiment of the present invention.

Fig. 3 is a top view of the overall structure of the battery module according to the embodiment of the present invention.

Fig. 4 is an exploded view of the battery module according to the present invention after the front and rear connecting members are hidden.

Fig. 5 is an exploded view of the first connection assembly.

Fig. 6 is an exploded view of the second connection assembly.

Fig. 7 is a structural view of the first harness isolation plate.

Fig. 8 is a schematic view of the structure of the connection row.

Fig. 9 is a schematic structural view of a side end plate.

FIG. 10 is a schematic view of a U-shaped slat structure.

Wherein the content of the first and second substances,

100 is a module frame, 101 is a bottom U-shaped lath, 102 is a top U-shaped lath;

11 is a side end plate, 111 is a main bearing plate, 112 is a boss, 113 is a first sinking platform, 114 is a second sinking platform, 115 is a third sinking platform, 116 is a fourth sinking platform, 118 is a tab inserting hole, and 119 is a module mounting hole;

12 is a U-shaped strip plate, 121 is a main strip plate, 122 is an end buckle plate, and 123 is a heat conduction insulating layer;

13 is an end cap plate, 131 is a first end cap plate, 132 is a second end cap plate, and 19 is an insulating plate;

200 is a battery row, 2 is a battery, 201 is a front end, 202 is a rear end, 21 is a pole, 22 is an explosion-proof valve, and 29 is a buffer heat-insulating pad;

301 is a first connection assembly, 302 is a second connection assembly;

401 is a first harness isolation plate, 402 is a second harness isolation plate, 4 is a harness isolation plate, 41 is a main isolation plate, 42 is a vertical isolation plate, 421 is an edge vertical isolation plate, 422 is a hole edge vertical isolation plate, 43 is a connection hole, 431 is a front clamping part, 432 is a rear clamping part, 44 is a circuit board groove, 441 is a communication groove, 442 is a positioning column, 443 is a groove edge opening, 45 is a tab connection groove, 451 is a column hole;

51 is a connecting row, 511 is a connecting plate, 512 is a buffer bridge, 513 is a pole connecting part, 514 is a collecting sheet connecting groove, 515 is a front clamping groove, 52 is an output pole lug, 53 is a first collecting line, 531 is a first flexible circuit board, 532 is a first side connecting plate, 533 is a first connector, 534 is a first collecting sheet, 538 is a button hole, 54 is a second collecting line, 541 is a second flexible circuit board, 542 is a second side connecting plate, 543 is a second connector, and 544 is a second collecting sheet; 55 is a tab row; 59 is a pintle;

reference numeral 6 denotes an output pole support, 61 denotes a base, 62 denotes an insert nut, and 63 denotes an output pole cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, 2, 3, and 4, a battery module, in which batteries are disposed at opposite ends of electrodes, includes a module frame 100 and a plurality of batteries 2 disposed in the module frame 100. The battery 2 is a rectangular strip body, and has a length of 365 to 600mm, a height of 50 to 150mm, and a thickness of 12 to 80 mm. The battery 2 is a battery with opposite electrodes, that is, the positive and negative electrode posts 21 are respectively located on the front and rear end faces of the battery 2 in the longitudinal direction. The batteries 2 are arranged in the module frame 100 such that the front and rear end faces in the longitudinal direction are aligned, thereby forming a battery row 200. The number of the cells 2 in the cell row 200 is even. The positive and negative electrodes of the batteries 2 are arranged in a staggered manner, that is, if the front end of one of the batteries 2 is a positive electrode and the rear end is a negative electrode, the rear end of the battery 2 adjacent to the battery is a negative electrode and the front end is a positive electrode. The front and rear end faces of the battery row 200 are respectively provided with a connecting assembly through a wiring harness isolation plate 4. After the batteries 2 in the battery row 200 are connected in series into a whole through the connecting rows in the front and rear end connecting assemblies, the output electrodes of the battery module are connected through the batteries 2 on the outermost sides of the two sides. Tandem refers to the connection of the positive pole of one cell 2 to the negative pole of another cell 2.

The module frame 100 comprises two side end plates 11 and a number of U-shaped slats 12. The side end plate 11 is a main bearing plate, preferably made of aluminum profiles hollowed out in the vertical direction. The two side end plates 11 are respectively arranged vertically and oppositely, are positioned at two sides of the battery row 200, are parallel to the long strip direction of each battery 2, and clamp the battery row at two sides of the battery row 200. The U-shaped slat 12 is divided into a bottom U-shaped slat 101 and a top U-shaped slat 102. Wherein the bottom U-shaped strip 101 is arranged below the battery row 200, and two ends of the bottom U-shaped strip are respectively connected with the bottoms of the two side end plates 11. The top U-shaped strip 102 is arranged above the battery row, and two ends of the top U-shaped strip are respectively connected with the tops of the two side end plates 11. The bottom U-shaped laths 101 and the top U-shaped laths 102 are the same in number and are arranged opposite to each other. Thus, a containing cavity for containing the battery 2 is enclosed between the two side end plates 11 and between the bottom U-shaped lath 101 and the top U-shaped lath 102. The batteries 2 are arranged in the accommodating cavity.

Specifically, referring to fig. 9, the side end plate 11 includes a main support plate 111 and a plurality of bosses 112 disposed on top of the main support plate 111. The main support plate 111 is flush with the battery 2 at the bottom and has a height lower than that of the battery 2. The top of the boss 112 is flush with the top surface of the cell 2. The outer side of the boss 112 is provided with a first sinking platform 113 for connecting the top U-shaped slat 102. The outer side below the main bearing plate 111 is provided with a second sinking platform 114 for connecting the bottom U-shaped strip plate 101. Referring to fig. 10, the U-shaped strip 12 is made of an elongated metal plate body, and includes a main strip 121 located in the middle and end buckles 122 located at both ends, respectively, which are formed by bending the elongated metal plate body at both ends. The end clips 122 of the bottom U-shaped slats 101 abut against the second countertops 114, respectively, and are welded to the end side plates 11 at the second countertops 114, such that the main slats 121 of the bottom U-shaped slats 101 span the individual cells 2 below the battery row 200 and provide bottom support for the individual cells 2. A gap is left between adjacent bottom U-shaped slats 101. The end straps 122 of the top U-shaped straps 102 abut against the first sunken lands 113, respectively, and are welded to the end side plates 11 at the first sunken lands 113, such that the main straps 121 of the top U-shaped straps 102 cross over the respective cells 2 above the battery row 200 and crimp the respective cells 2 above the cells 2. A gap is left between adjacent top U-shaped slats 102.

The harness isolation plate 4 on the front end face of the battery row 200 is a first harness isolation plate 401. The first harness isolation plate 401 is closely attached to the front end surface of the battery row 200. The connection assembly provided at the front end of the battery row 200 through the first harness isolation plate 401 is a first connection assembly 301. The first connection assembly 301 comprises a connection bank 51, an output pole lug 52 and a first acquisition line 53. The harness isolation plate 4 on the rear end face of the battery row 200 is a second harness isolation plate 402. The second harness isolation plate 402 is closely attached to the rear end surface of the battery row 200. The connection assembly provided at the rear end of the battery row 200 by the second harness isolation plate 402 is the second connection assembly 302. The second connection assembly 301 comprises a number of connection banks 51 and a second collection line 54. The connection bank 51 is used to connect the batteries 2 in series. Since the positive and negative electrodes of the batteries 2 are arranged alternately in the battery row 200, the connecting row 51 is only required to connect two adjacent batteries 2 in series. Referring to fig. 5, the output electrode tab 52 is connected to the pole of the battery 2 at the outermost side of the battery row 200 through the tab row 55. Thus, the battery row 200 is integrally connected by the series connection of the front and rear cells 2, and then the output electrode of the battery module is output through the output electrode tab 52. Two output electrode tabs 52 are respectively located at both sides of the front end of the battery module.

Referring to fig. 5 and 6, the first collecting line 53 includes a first flexible circuit board 531, a first side connection board 532, and a first connector 533. The first flexible circuit board 531 is disposed on the first harness spacer 401. The first connector 533 is connected to the first flexible circuit board 531 through the first side connection plate 532. The first side connection plate 532 and the first flexible circuit board 531 are connected to form an L-shaped structure. The second collecting line 54 includes a second flexible circuit board 541, a second side connection board 542, and a second connector 543. The second flexible circuit board 541 is disposed on the second harness isolation plate 402. The second connector 543 is connected to the second flexible circuit board 541 through the second side connection plate 542. The second flexible circuit board 541 and the second side connection plate 542 are connected to form an L-shaped structure. The first and second flexible circuit boards 531 and 541 are connected to the connection bank 51 through the first and second pickup sheets 534 and 544, respectively. Wherein, a temperature sensor for detecting the temperature of the battery 2 is further connected to part of the first collecting sheet 534 and the second collecting sheet 544. The temperature sensor is not shown in the figures, but does not impede understanding by those skilled in the art.

Referring to fig. 7, the wire harness isolation plate 4 includes a main partition plate 41, a plurality of vertical partition plates 42 provided on the main partition plate 41, and a plurality of connection holes 43 provided on the main partition plate 41. The vertical partition plate 42 is positioned on the front surface of the wire harness partition plate 4; the rear surface of the harness isolation plate 4 is in close contact with the front and rear end surfaces of the battery row 200. The vertical partition 42 includes an edge vertical partition 421 and a hole-side vertical partition 422. The edge standing partition 421 is provided at the edge of the main partition 41. The hole-side vertical partition 422 is provided at the edge of the connection hole 43. The connection holes 43 are used to provide a connection row 51 arranged in a row corresponding to the poles 21 on the front and rear end faces of the battery row 200. Each of the connection holes 43 corresponds to two poles 21 on the end surfaces of two adjacent batteries 2, and the connection row 51 provided in the connection hole 43 connects the two corresponding poles. Circuit board slots 44 separated by an edge vertical partition 421 and a hole edge vertical partition 422 are provided along both sides of the arrangement direction of the connection holes 43. A communication groove 441 for communicating the circuit board grooves 44 on both sides is provided between the adjacent connection holes 43. The circuit board slot 44 is used for disposing the first flexible circuit board 531 or the second flexible circuit board 541, and is provided with a plurality of positioning posts 442 for being clamped with the first flexible circuit board 531 or the second flexible circuit board 541. The circuit board slot 44 is provided with a slot edge opening 443 at the end edge. The first and second flexible circuit boards 531 and 541 in the circuit board slot 44 connect the first and second side connection plates 532 and 542 through the slot edge opening 443.

The connection row 51 is disposed in the connection hole 43 and connected to the poles 21 on the front and rear end faces of the battery row 200. The connecting hole 43 is square and is provided with a connecting and clamping mechanism. The connection row position clamping mechanism comprises a front clamping part 431 and a rear clamping part 432 which are respectively arranged at two opposite angles. That is, the two front latching portions 431 are diagonally disposed, the two rear latching portions 432 are diagonally disposed, and the two front latching portions and the two rear latching portions are respectively located on different diagonal angles. The connection row 51 is caught between the front catching portions 431 and the rear catching portions 432, specifically, the two front catching portions 431 are caught in front of the connection row 51, and the two rear catching portions 432 are caught in rear of the connection row 51.

The connection bank 51, see fig. 8, comprises two connection plates 511 connected by a buffer bridge 512. The buffer bridge 512 is an omega-shaped bend. The connection board 511 is provided with a pole connection part 513, a collection sheet connection groove 514 and a front clamping groove 515. The pole connecting portion 513, the collecting piece connecting groove 514 and the front clamping groove 515 are formed by punching the connecting plate 511. The post connecting portion 513 is a portion for connecting with the post 21 of the battery 2 by welding, and the collecting tab connecting groove 514 is used for receiving and connecting the first collecting tab 534 or the second collecting tab 544. The front locking groove 515 is used to receive the front locking portion 431.

Note that the harness isolation plate 4 illustrated in fig. 7 is a first harness isolation plate 401. In the first harness isolation plate 401, tab connection grooves 45 are further provided at both ends along the arrangement direction of the connection holes 43, respectively. A pole hole 451 is provided in the pole tab connecting groove 45. The tab connecting groove 45 is used to provide a tab row 55. The tab row 55 is disposed in the tab connection groove 45 to connect the post 21 passing through the post hole. In the tab connecting groove 45, the output electrode tab 52 is connected to the tab row 55 by welding. Compared with the first wire harness isolation plate 401, the second wire harness isolation plate 402 does not need a tab connecting groove, and the specific structure of the second wire harness isolation plate is substantially the same as that of the first wire harness isolation plate 401, and is not described again.

The first plug-in device 533 and the second plug-in device 543 are respectively located at two sides of the rear end of the battery module. Specifically, a third sinking platform 115 for arranging the first connector 533 or the second connector 543 is disposed outside the rear end of the main bearing plate 111, and a fourth sinking platform 116 for arranging the first side connecting plate 532 is disposed between the first sinking platform 113 and the second sinking platform 114. The first and second connectors 533 and 543 are respectively disposed on the third sinking stage 115 through the first and second side connection plates 532 and 542 to which they are respectively connected. The first flexible circuit board 531 connected to the front end of the first side connecting plate 532 is connected to the third sinking platform 115 outside the main bearing plate 111 through the fourth sinking platform 116 outside the main bearing plate 111, so as to connect the first connector 533 disposed at the rear end side of the battery module.

In this embodiment, the first side connection plate 532 and the second side connection plate 542 are implemented by attaching a flexible circuit board to an insulating plate. The flexible circuit boards on the first side connection plate 532 and the second side connection plate 542 are integrated flexible circuit boards with the first flexible circuit board 531 and the second flexible circuit board 541, respectively. The first side connecting plate 532 and the second side connecting plate 542 respectively cling to the outer side surfaces of the two side end plates 11 and are fixed with the main bearing plate 111 through fastening, as shown in fig. 2 by the fastening 59 and fig. 5 by the fastening hole 538, and the fastening 59 passes through the fastening hole 538 to fix the first side connecting plate 532 on the fourth sunken table 116 on the outer side surface of the main bearing plate 111. The second side connecting plate 542 is also fastened by fasteners. Those skilled in the art will appreciate that the first and second side connecting plates 532, 542 may be fastened to the side end plates 11 by rivets, bolts, or other means.

Further, a tab insertion hole 118 is provided in the vertical direction at the front end of the side end plate 11, and the output electrode support member 6 is provided through the tab insertion hole 118. Referring to fig. 9, the output pole support 6 includes a base 61, an insert nut 62, and an output pole cover 63. The base plate 61 includes a bottom insertion portion and a tab receiving cavity provided in the insertion portion. The base 61 is inserted into the tab insertion hole 118 through the insertion portion. Insert nuts 62 are provided in the tab receiving cavities for bolting to the output pole tab 52. That is, one end of the output pole tab 52 is disposed in the output pole support 6 disposed on the side end plate 11, and the other end is bent to connect the pole 21 through the tab row 55. The output pole cover 63 is arranged above the pole lug accommodating cavity in a buckling mode. The top surface of the output pole cover 63 is flush with the top surface of the battery 2.

Furthermore, the side end plate 11 is used as a main bearing plate, and module mounting holes 119 are further arranged in the vertical direction of the two ends. The module mounting hole 119 is used to mount and fix the battery module in the battery case.

Further, in this embodiment, in order to make the battery module set up in the battery box, battery 2 can directly laminate the liquid cooling board and the hot plate in the battery box to realize better heat exchange effect, the mainboard body 121 of each bottom U-shaped slat 101 covers battery row 200 bottom area no more than 80% in the below of battery row 200, preferably 20% ~50%, that is, the mainboard 121 of each bottom U-shaped slat 101 covers module frame bottom area no more than 80%, preferably 20% ~ 50%.

Further, the top surface of the battery 2 is also provided with an explosion-proof valve 22. The explosion-proof valve 22 of the top surface of the battery 2 is two. The explosion-proof valve 22 is located in the gap between two adjacent top U-shaped slats 102. Whereby when the internal pressure of the battery 2 is excessively high and the explosion-proof valve 22 bursts, the pressure and heat can be released through the gap between the top U-shaped strips 102.

Further, the front end and the rear end of the battery module are respectively provided with an end cover plate 13. The end cover 13 disposed at the front end of the battery module is a front end cover 131, and the end cover 13 disposed at the rear end is a rear end cover 132. The front and rear end covers 131 and 132 may be connected to the end side plate 11 or the harness spacer 4 by a snap-fit manner.

Further, a cushion 29 is provided between the batteries 2 and the battery 2. And the inner side of the side end plate 11 is provided with an insulating plate 19. The inner side of the main strip 121 of the U-shaped strip 12 is provided with a heat conductive insulating layer 123. The heat-conducting insulating layer 123 is coated on the inner side of the main ribbon board 121 by using a heat-conducting structural adhesive, that is, the battery 2 is adhered to the main ribbon board 121 by the heat-conducting structural adhesive. In this embodiment, the thermal conductivity coefficient of the thermal conductive structural adhesive used for the thermal insulation layer 123 is 0.5-15.0W/K.m, and the bonding strength is 0.5-30.0 MPa.

Further, it is to be noted that, as understood by those skilled in the art, the first side connection plate 532 and the second side connection plate 542 may be directly made of a flexible circuit board.

Claims (10)

1. A battery module based on a battery arranged at the opposite end of an electrode comprises a module frame (100) and a plurality of batteries (2) arranged in the module frame (100), and is characterized in that the batteries (2) are square strip bodies, and polar columns (21) of a positive pole and a negative pole are respectively positioned on the end faces of the front end and the rear end of the battery (2) in the strip direction; the batteries (2) are arranged in the module frame (100) in a manner that the front end faces and the rear end faces in the longitudinal direction are aligned to form a battery row (200); in the battery row (200), the positive electrode and the negative electrode of the battery (2) are arranged in a staggered manner; the front end face and the rear end face of the battery row (200) are respectively provided with a connecting assembly through a wiring harness isolation plate (4); the wiring harness isolation plate (4) on the front end face of the battery bank (200) is a first wiring harness isolation plate (401) and is provided with a first connecting assembly (301); the wiring harness isolation plate (4) on the end face of the rear end of the battery row (200) is a second wiring harness isolation plate (402) and is provided with a second connecting assembly (302); the first connecting assembly (301) and the second connecting assembly (302) each comprise a connecting row (51) for connecting the batteries (2) in series; wherein the first connection assembly (301) further comprises an output pole tab (52) and a first collection line (53); the second connection assembly (302) further comprises a second acquisition line (54); the output pole lug (52) is connected with the pole of the battery (2) through a lug row (55); the first acquisition line (53) comprises a first flexible circuit board (531), a first side connecting board (532) and a first connector (533); the first flexible circuit board (531) is disposed on the first harness isolation plate (401); the first connector (533) is connected to the first flexible circuit board (531) through the first side connection plate (532); the second acquisition circuit (54) comprises a second flexible circuit board (541), a second side connecting board (542) and a second connector (543); the second flexible circuit board (541) is disposed on the second harness isolation plate (402); the second connector (543) is connected to the second flexible circuit board (541) through the second side connection board (542); the two output pole lugs (52) are respectively positioned on two sides of the front end of the battery module; the first connector (533) and the second connector (543) are respectively located on two sides of the rear end of the battery module.

2. The battery module based on the electrode-end-to-end arranged batteries according to claim 1, wherein the module frame (100) comprises two side end plates (11) and a plurality of U-shaped slats (12); the two side end plates (11) are respectively vertically arranged on two sides of the battery row (200); the U-shaped lath (12) is divided into a bottom U-shaped lath (101) and a top U-shaped lath (102); wherein the bottom U-shaped strip plate (101) is arranged below the battery row (200), and two ends of the bottom U-shaped strip plate are respectively connected with the two side end plates (11); the top U-shaped batten (102) is arranged above the battery row, and two ends of the top U-shaped batten are respectively connected with the two side end plates (11); the first side connecting plate (532) and the second side connecting plate (542) are respectively tightly attached to the outer side surfaces of the two side end plates (11); the first connector (533) and the second connector (543) are respectively arranged on the two side end plates (11) and are located on the outer side faces of the rear ends of the side end plates (11).

3. The battery module based on the battery arranged at the opposite end of the electrode as the claim 2, wherein the side end plate (11) is hollowed out in the vertical direction and comprises a main bearing plate (111) and a plurality of bosses (112) arranged at the top of the main bearing plate (111); the height of the main bearing plate (111) is lower than that of the battery (2); the top of the boss (112) is flush with the top surface of the battery (2); a first sinking platform (113) used for connecting the top U-shaped strip plate (102) is arranged on the outer side of the boss (112); and a second sinking platform (114) used for connecting the bottom U-shaped strip plate (101) is arranged on the outer side below the main bearing plate (111).

4. The battery module based on the electrode-opposite-end-disposed batteries according to claim 3, wherein the U-shaped strip (12) is made of an elongated metal plate body, and comprises a main strip (121) located in the middle and end-fastening plates (122) located at both ends, respectively, which are formed by bending the elongated metal plate body at both ends; the second heavy platform (114) is connected respectively to end buckle board (122) of bottom U-shaped slat (101), first heavy platform (113) is connected respectively to end buckle board (122) of top U-shaped slat (102), makes main slat (121) of bottom U-shaped slat (101) be in each battery (2) is crossed and bottom sprag is provided for each battery (2) in the below of battery row (200), main slat (121) of top U-shaped slat (102) are in each battery (2) is crossed and each battery (2) is held down in the top of battery row (200).

5. The battery module based on the batteries arranged at the opposite ends of the electrodes as set forth in claim 4, wherein the main strip (121) of each bottom U-shaped strip (101) covers 20% -80% of the bottom area of the battery row (200) below the battery row (200).

6. The battery module based on the electrode-opposite-end-arranged battery as claimed in claim 3, wherein a third sinking platform (115) for arranging the first connector (533) or the second connector (543) is disposed at the outer side of the rear end of the main supporting plate (111).

7. The battery module based on the electrode opposite-end arranged battery as claimed in claim 3, wherein a fourth sinking platform (116) for arranging a first side connection plate (532) is arranged between the first sinking platform (113) and the second sinking platform (114); the first side connecting plate (532) is arranged on the fourth sinking platform (116) through a fastening nail.

8. The battery module based on the batteries arranged at the opposite ends of the electrodes as claimed in claim 3, wherein the front end of the side end plate (11) is provided with a tab insertion hole (118) in the vertical direction, and an output electrode support member (6) is arranged through the tab insertion hole (118); the output pole tab (52) is connected to the output pole support (6).

9. The battery module based on the electrode opposite-end arranged batteries according to claim 1, wherein the harness isolation plate (4) comprises a main isolation plate (41), a plurality of vertical isolation plates (42) arranged on the main isolation plate (41), and a plurality of connecting holes (43) arranged on the main isolation plate (41); the vertical partition plates (42) comprise edge vertical partition plates (421) and hole edge vertical partition plates (422); the hole edge vertical partition plate (422) is arranged at the edge of the connecting hole (43); the edge vertical partition plate (421) is arranged at the edge of the main partition plate (41); the connecting holes (43) are arranged in rows; circuit board grooves (44) which are formed by isolating the edge vertical partition plates (421) and the hole edge vertical partition plates (422) are arranged on two sides along the arrangement direction of the connecting holes (43); a communicating groove (441) for communicating the circuit board grooves (44) on the two sides is arranged between the adjacent connecting holes (43); the circuit board slot (44) is used for arranging the first flexible circuit board (531) or the second flexible circuit board (541); the connecting bar (51) is arranged in the connecting hole (43) and is connected with the poles (21) on the front end face and the rear end face of the battery bar (200).

10. The battery module based on the electrode opposite-end arranged batteries according to claim 9, wherein the connecting hole (43) is square, and two opposite corners are respectively provided with a front clamping portion (431) and a rear clamping portion (432); the connecting row (51) is clamped between the front clamping part (431) and the rear clamping part (432).

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