TWI718500B - Battery connection module - Google Patents

Abstract

A battery connection module includes a plurality of bus pieces, two jumper type bus pieces, a flexible circuit board, an electrode unit, and a power connection bar. Each jumper type bus has a first bus section suitable for electrically connecting a first battery pack, a second bus section suitable for electrically connecting a second battery pack, and a bridge connected between the two segment. The flexible circuit board includes an extension arm and a temperature sensor arranged on the extension arm, and the bus piece is formed with a recess corresponding to the temperature sensor. The electrode unit includes an electrode sheet lapped on the bus, an electrode sheet holder for holding the electrode sheet, and a power connection seat arranged on the electrode sheet. The power connection bar has a power connection head which is connected with the power connection seat through a buckle connection structure, an alignment structure, and a fastener and a casing pipe.

Description

Battery connection module

The present invention relates to a battery connection module, in particular to a battery connection module for modular connection of battery packs.

US Patent No. US8,879,262 (corresponding to Chinese Invention Patent Application No. CN201080048799.1) only discloses the structure of the folding confluence part of the confluence member.

The Chinese Utility Model Patent Authorization Announcement No. CN206806468U discloses that a temperature sensor is installed on a bus bar and fixed in a cavity of a bus bar. However, the temperature sensor and the circuit board need to be connected through additional wiring or wiring. Therefore, the structure and manufacturing are more complicated, and the wire-bonding connection structure is easily damaged.

The Chinese Utility Model Patent Authorization Announcement No. CN206742321U (corresponding to the Chinese Patent Publication No. CN107046114A) discloses that the bus bar is fixed on the splint at the end of the battery module through an adapter base. Because the connection between the busbar and the splint at the end of the battery module is through an adapter base, the three need to have a structure for clamping and assembly with each other, so the structure is more complicated and unstable.

U.S. Patent Publication No. US2018/0287270A1 (corresponding to Chinese Invention Patent Publication No. CN108695602A) discloses that a first conductor and a second conductor are electrically connected through a connector. The fastening structure of the connector is similar to this case, but in order to improve the connector Fast and aligned docking requires further innovation. Furthermore, the first conductor and the second conductor are not connected to the battery bus.

Therefore, one objective of the present invention is to provide a battery connection module that can improve at least one of the disadvantages of the prior art.

Therefore, in some embodiments, the battery connection module of the present invention is suitable for connecting a first battery pack and a second battery pack side by side with each other, and the battery connection module includes a carrier plate, a plurality of buss, and Two jumper junctions. The busbars are assembled on the carrier plate, a part of the busbars is suitable for electrically connecting the first battery pack, and the other part is suitable for electrically connecting the second battery pack. The two jumper type bus pieces are assembled on the carrier plate, and each jumper type bus piece has a first bus section suitable for electrically connecting the first battery pack, and a first bus section suitable for electrically connecting the second battery pack. Two confluence sections, and a bridge section connected to the first confluence section and the second confluence section.

In some embodiments, the first bus section, the second bus section, and the bridge section of each jumper bus are formed in an integral structure.

In some embodiments, each bridge section is folded into a multi-layer structure with a reduced width.

In some embodiments, the carrier plate is provided with an accommodating portion for accommodating the bridging sections of the jumper buss that are stacked on top of each other.

In some embodiments, it further includes a holding member for a bridge section, the holding member for a bridge section has a holding end that holds one of the bridge sections of the bridging type bus on the carrier plate, and is suitable for fixing at one end A fixed end of the board.

In some embodiments, the accommodating portion is provided with a holding column penetrating the bridge section and the holding member for the bridge section.

In some embodiments, the surface of the bridge section on which the two jumper busbars overlap is covered with an insulating layer.

In some embodiments, the surface of the holding end of the holding member for the bridge section is covered with an insulating layer.

In some embodiments, the accommodating portion has a first step portion and a second step portion located at different heights, so as to respectively support and accommodate the two jumper buss partially staggered and overlapped with each other. segment.

Therefore, in some embodiments, the battery connection module of the present invention includes a carrier plate, a plurality of bus elements, and a flexible circuit board. The busbars are assembled on the carrier plate. The flexible circuit board includes a body provided on the carrier plate, an extension arm extending from the body toward the bus, and a temperature sensor provided on the extension arm and electrically connected to the circuit trace of the flexible circuit board, The confluence member is formed with a recess corresponding to the temperature sensor.

In some embodiments, the flexible circuit board further includes an attachment piece attached to the extension arm and the bus piece so that the extension arm is fixed on the bus piece.

In some embodiments, the attachment piece is attached to the surface of the extension arm facing the temperature sensor.

In some embodiments, the concave portion of the confluence member is filled with a thermally conductive filler covering the temperature sensor.

In some embodiments, the confluence member has an extension tab extending in the direction of the corresponding extension arm, and the recess is formed on the extension tab.

Therefore, in some embodiments, the battery connection module of the present invention includes a carrier plate, a plurality of bus members, and an electrode unit. The supporting tray is formed with a receiving groove. The busbars are assembled on the carrier plate. The electrode unit is overlapped with one of the bus members, and the electrode unit includes an electrode sheet, a power connection seat, and a holder for the electrode sheet. The electrode sheet is arranged in the receiving groove of the carrier plate and overlapped on the corresponding On the bus, the power connection seat is arranged on the electrode sheet, and the electrode sheet holder has a holding end portion for holding the electrode sheet on the carrier plate, and a fixed end portion suitable for being fixed on an end plate.

In some embodiments, the holding end of the holder for the electrode sheet is overlapped on the upper surface of the electrode sheet.

In some embodiments, the holding end of the electrode sheet holder and the surface of the overlapping part of the electrode sheet are respectively provided with insulating layers.

In some embodiments, an insertion frame is provided at the receiving groove, and the holding end of the electrode sheet holder is correspondingly inserted into the insertion frame.

In some embodiments, the electrode sheet is formed with an opening through which the corresponding insertion frame passes.

In some embodiments, the receiving groove is provided with a hook for buckling the electrode sheet.

In some embodiments, the receiving groove is provided with a holding block, the end of the electrode sheet extends below the corresponding holding block, and the holding end of the holding member for the electrode sheet is assembled to the holding block.

In some embodiments, a limiting groove corresponding to the end of the electrode sheet is formed under the holding block, and a slot corresponding to the holding end of the electrode sheet is formed in the holding block.

In some embodiments, the side edge of the holding end of the electrode sheet holder is formed with an interference protrusion that interferes with the slot.

Therefore, in some embodiments, the battery connection module of the present invention includes a carrier plate, a plurality of bus members, an electrode unit, and a power connection bar. The busbars are assembled on the carrier plate. The electrode unit is overlapped with one of the bus elements, and the electrode unit includes an electrode sheet and a power connection seat. The electrode sheet is arranged on the carrier plate and overlaps the corresponding bus element, and the electrode sheet and the The bussing member is made of different metal materials. The power connection seat is provided on the electrode sheet. The power connection seat has a first conductive ring provided on the electrode sheet, and a first conductive ring provided on the electrode sheet and passing through the first conductive ring. The sleeve, and an outer shell arranged on the electrode sheet and located at the periphery of the first conductive ring, the outer shell is formed with a first alignment structure and a first buckling structure. The power connecting strip includes a conductive strip, and a power connector arranged at the end of the conductive strip and used for mating with the power connector. The power connector includes a conductive strip that overlaps the end of the conductive strip and is formed with a through hole. The conductive block, a second conductive ring provided in the conductive block corresponding to the perforation, an upper shell and a lower shell assembled with each other to jointly accommodate the second conductive ring, and the perforation penetrating through the conductive block and the second conductive ring Two conductive rings are movably confined to a fastener between the conductive block and the upper shell. The lower shell is integrally formed with a plug-in part located at the periphery of the second conductive ring, corresponding to the first alignment structure The second alignment structure of the, and the second buckling structure corresponding to the first buckling structure, wherein after the power connector is mated with the power connector, the plug portion is inserted into the housing, The fastener is assembled to the sleeve, and the first conductive ring and the second conductive ring are in contact with each other to electrically connect the electrode sheet and the conductive strip.

In some embodiments, the second alignment structure of the power connector includes a plurality of alignment blocks, the second buckling structure includes a plurality of buckling pieces, the alignment blocks and the buckling pieces in sequence Alternately arranged on the periphery of the plug-in part, the first alignment structure of the power connector includes a plurality of alignment holes for correspondingly accommodating the alignment blocks, and the first buckling structure includes A plurality of buckling blocks buckled corresponding to the buckling pieces.

In some embodiments, the fastener has an insulating head confined between the conductive block and the upper shell, an insulating tail opposite to the insulating head, and an insulating head between the insulating head and the insulating tail. The upper shell has an opening for exposing the insulating head, the sleeve has an internal threaded hole for mating and locking with the external thread of the fastener, the power connection seat is also There is an insulating protection ring set at the upper end of the sleeve.

In some embodiments, the electrode sheet is formed with a setting hole, the first conductive ring of the power connector is correspondingly penetrated through the setting hole, and the sleeve is correspondingly penetrated in the first conductive ring.

In some embodiments, the first conductive ring of the power connector and the electrode sheet are integrally constructed, and the sleeve is correspondingly penetrated in the first conductive ring.

In some embodiments, the conductive strip has a conductive portion made of multiple layers of copper material, and the conductive block of the power connector is a solid copper material.

In some embodiments, the busbars are aluminum materials, and the electrode sheets are solid copper materials.

The battery connection module of the present invention directly bridges the two battery packs through the integrally constructed jumper type bus, omitting the solder joints or wiring connections constructed between the two battery packs in series in the prior art. point. The bridge section is folded into a multi-layer structure with a reduced width in the width direction to reduce the width to facilitate installation and at the same time can load large current. In addition, the temperature sensor electrically connected to the circuit trace of the flexible circuit board is directly fixed on the extension arm of the flexible circuit board and is directly correspondingly placed in the recess of the bus, so that assembly is simple and easy and temperature sensing is more direct. . In addition, the electrode sheet holder provides greater force strength (torsion or force in other directions) to the electrode sheet to avoid displacement or vibration of the electrode sheet. Furthermore, the buckle structure, alignment structure, fasteners and bushings provided between the power connector and the power connection seat enable the power connector and the power connection seat to be quickly and aligned. Furthermore, the electrode sheet is overlapped on the busbar made of dissimilar metal material, thereby improving the welding performance of each part, increasing the conductivity and reducing the heat accumulation.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

1 to 3, a battery connection module 100 according to a first embodiment of the present invention is suitable for being electrically connected to a battery pack 20, the battery pack 20 has a plurality of batteries 201 (in this first embodiment In the example, there are 12) and the battery pack 20 and the protective frame 302 provided at the two ends are housed in a battery housing 30 having end plates 301 at both ends. The battery connection module 100 includes a carrier plate 1, a plurality of busbars 2, a flexible circuit board 3, two electrode units 4, two power connection bars 5, and an upper cover 6.

The carrier plate 1 extends along a length direction D1 and is suitable for being installed on the battery pack 20, and is made of insulating material. The busbars 2 are divided into two rows along a width direction D2 perpendicular to the length direction D1 and assembled on the carrier plate 1, and are suitable for electrically connecting the batteries 201 of the battery pack 20. In the first embodiment, each bus member 2 has a plurality of electrode connecting portions 21 suitable for connecting with the electrodes of the battery 201, and is connected between adjacent electrode connecting portions 21 and extending along the longitudinal direction D1 and A vertical direction D3 of the width direction D2 arches a plurality of arched buffer portions 22 in a direction away from the carrier plate 1, and the arched buffer portions 22 extend along the width direction D2. The carrier plate 1 includes The multiple lower limit bars 11 below the arched buffer 22 of the busbar 2 and the multiple upper limit blocks 12 and the multiple upper limit hooks 13 above the busbar 2 are provided by the lower limit bars 11 and upper limit blocks. 12 and the upper limit hook 13 jointly limit the confluence piece 2.

4 and 5, the flexible circuit board 3 includes a main body 31 disposed on the carrier plate 1 and located between the two rows of bus elements 2, and a plurality of extension arms 32 extending from the main body 31 toward the bus elements 2, and And a plurality of temperature sensors 33 (such as NTC thermistor (Negative Temperature Coefficient thermistor, negative temperature coefficient thermistor)) arranged on the extension arm 32 and electrically connected to the circuit traces of the flexible circuit board 3. The confluence The member 2 also has an extension tab 23 extending in the direction of the corresponding extension arm 32, and the top surface of the extension tab 23 of the confluence member 2 is formed with a recess 231 corresponding to the temperature sensor 33. In a modified embodiment, the confluence member 2 may not have the extending tabs 23 but directly form the concave portion 231, and in another modified embodiment, the concave portion 231 may also be in the form of a blind hole. In the first embodiment, The flexible circuit board 3 also includes a plurality of attachment pieces 34. The attachment pieces 34 may be made of nickel, for example. The attachment pieces 34 are attached to the back of the extension arm 32 by means of welding, etc. The surface of the temperature sensor 33 and the confluence member 2 so that the extension arm 32 is fixed on the confluence member 2. Further, the concave portion 231 of the confluence member 2 may be filled with covering the temperature sensor 33’s thermally conductive filler (not shown), the thermally conductive filler can be, for example, a thermally conductive glue, etc. The thermally conductive filler can help to transfer the heat energy on the busbar 2 to the temperature sensor 33, but not For limitation, the temperature sensor 33 electrically connected to the circuit trace of the flexible circuit board 3 is directly fixed on the extension arm 32 of the flexible circuit board 3 and directly correspondingly placed in the recess 231 of the busbar 2, so as to make the assembly simple and easy. In addition, the temperature sensing is more direct, and by attaching the attachment piece 34 to the extension arm 32 and the bus element 2, the fixation between the extension arm 32 and the bus element 2 can be strengthened.

In the first embodiment, the body 31 of the flexible circuit board 3 is further formed with a plurality of positioning holes 311, a plurality of bending buffer portions 312 recessed downward along the vertical direction D3 and extending along the width direction D2, and An upper folding portion 313 bent upward along the up-down direction D3, the carrier plate 1 further has a plurality of positioning posts 14 penetrating the positioning holes 311, and a plurality of containers accommodating the bending buffer portions 312 A recessed portion 15 and a mounting seat 16 adjacent to the upper folded portion 313 are provided. The positioning posts 14 can be heat-melted at the ends to form enlarged heads to fix the flexible circuit board 3. The battery connection module 100 further includes an electrical connector 7 electrically connected to the upper folding portion 313 and a back plate 8. The mounting seat 16 is formed with two hooks 161 opposite to each other along the length direction D1. The electrical connector 7 is buckled on the mounting seat 16 and has corresponding buckling hooks 161 of the mounting seat 16 Two buckling grooves 70, a plurality of pins 71 located on the rear side and passing through the upper folding portion 313 to be electrically connected to the circuit traces of the flexible circuit board 3, and the backplane 8 is fixed to the pins 71 And the upper folding part 313 is clamped together with the electric connector 7 to strengthen the holding force between the electric connector 7 and the upper folding part 313. In addition, the flexible circuit board 3 further has a plurality of voltage collecting pieces 35 electrically connected to the main body 31 and respectively contacting the bus elements 2 to collect voltage information of the bus elements 2. The temperature sensor 33 and the voltage collecting piece 35 of the flexible circuit board 3 can collect the state information (such as temperature, voltage, etc.) of the battery pack 20, and by the electrical connector 7 electrically connected to the flexible circuit board 3 The status information can be transmitted to a battery management device (not shown) connected to the electrical connector 7. The electrical connector 7 further has a protective cover 72 to protect the electrical connector 7 when the electrical connector 7 is not docked with the device.

Referring to Figures 3 and 5 to 7, the carrier plate 1 is also formed with two receiving slots 17 located at both ends of the length direction D1. Each receiving slot 17 is provided with a holding block 171, and a limit is formed below the holding block 171 Bit slot 172. The two electrode units 4 are overlapped with two of the buss 2, and each electrode unit 4 includes an electrode sheet 41, a power connection base 42, and a holder 43 for the electrode sheet. The electrode sheet 41 is arranged in the corresponding receiving groove 17 of the carrier plate 1 and overlapped on an overlapping portion 24 formed by the corresponding bus member 2, and the end of the electrode sheet 41 is formed with an insertion convex portion with a protruding sheet structure 410. The insertion convex portion 410 extends into the limiting groove 172 under the corresponding holding block 171 to be received in the limiting groove 172. The power connection base 42 is provided on the electrode sheet 41, and the electrode sheet holder 43 has a holding end 431 assembled to the corresponding holding block 171 to indirectly hold the corresponding electrode sheet 41 on the carrier plate 1, and For example, it is fixed to a fixed end 432 of the adjacent end plate 301 by welding. Each holding block 171 is formed with a slot 171a for accommodating the holding end 431 of the corresponding electrode sheet holding member 43. The two side edges of the holding end 431 of each electrode sheet holder 43 are formed with a plurality of interference protrusions that interfere with the slot 171a to enhance the holding force between the electrode sheet holder 43 and the slot 171a. The electrode sheet holder 43 provides greater force strength (torsion or force in other directions) to the electrode sheet 41 to avoid displacement or vibration of the electrode sheet 41.

8-11, the power connection base 42 is provided on the electrode sheet 41, the power connection base 42 has a first conductive ring 421 provided on the electrode sheet 41, is provided on the electrode sheet 41 and passes through the first conductive ring A sleeve tube 422 of a conductive ring 421 and a shell 423 disposed on the electrode sheet 41 and located on the periphery of the first conductive ring 421. In the first embodiment, the first conductive ring 421 and the electrode sheet 41 are integrally constructed, but it can also be a two-piece combination, which is not limited to this. The sleeve 422 passes through the electrode sheet 41 and is correspondingly penetrated in the first conductive ring 421. The shell 423 is formed with a first alignment structure 424 and a first buckling structure 425. The power connection strip 5 includes a conductive strip 51 and two power connectors 52 arranged at two ends of the conductive strip 51 and used for mating with the power connection base 42. Each power connector 52 includes a conductive block 521 overlapped with the end of the conductive strip 51 and formed with a through hole 521a, and a second conductive ring 522 provided on the conductive block 521 corresponding to the through hole 521a. An upper shell 523 and a lower shell 524 where the second conductive ring 522 and the conductive block 521 are placed, and the through holes 521a and the second conductive ring 522 penetrated through the conductive block 521 are movably confined to the conductive block 521 A fastener 525 between the upper shell 523, the second conductive ring 522 and the conductive block 521 are also integrally constructed in the first embodiment, but they can also be a two-piece combination. Limit this. The upper shell 523 and the lower shell 524 can be made of insulating materials, and in the first embodiment, the upper shell 523 is formed with a plurality of buckling holes 523b at the side, and the lower shell 524 is formed with corresponding buckling holes The buckling blocks 524a of the buckling holes 523b are used to buckle the upper shell 523 and the lower shell 524 to each other for assembly. The lower shell 524 is integrally formed with a plug-in portion 526 located on the periphery of the second conductive ring 522, a second alignment structure 527 corresponding to the first alignment structure 424, and a second alignment structure 527 corresponding to the first buckling structure 425. In the second buckling structure 528, after the power connector 52 is mated with the power connector 42, the plug portion 526 is inserted into the housing 423, and the fastener 525 is assembled to the sleeve 422, In order to make the first conductive ring 421 and the second conductive ring 522 contact each other, the electrode sheet 41 of the electrode unit 4 is electrically connected to the conductive bar 51 of the power connection bar 5. The electrode sheet 41 and the busbar 2 are made of different metal materials. In the first embodiment, the electrode material of the battery 201 of the battery pack 20 is aluminum, and the busbar 2 is an aluminum plate so that the busbar 2 can be easily welded to the electrode of the battery 201 of the battery pack 20, but For example, the busbar 2 may also be a structure of multilayer aluminum. The electrode sheets 41 that overlap the bus member 2 are solid copper materials to increase the electrical conductivity of the electrode sheets 41. In addition, the electrode sheets 41 made of copper have better thermal conductivity. Further reduce heat accumulation. The conductive strip 51 has a conductive portion 511 for the conductive block 521 to overlap, and an insulating outer layer 512 covering the conductive portion 511. The conductive portion 511 is made of multiple layers of copper. The conductive portion 511 of the elbow makes the conductive strip 51 easier to bend, and the conductive block 521 of the power connector 52 is made of solid copper material to increase conductivity and reduce heat accumulation, thereby improving the welding performance of each component and increasing conductivity And reduce heat accumulation. However, in other modified embodiments, the busbar 2, the electrode sheet 41, the conductive portion 511 of the conductive strip 51, and the conductive block 521 of the power connector 52 may also be made of other metal materials, and the first embodiment should not be used as limit.

The second alignment structure 527 of the power connector 52 includes four alignment blocks 527a, and the second buckling structure 528 includes four buckling pieces 528a each having a buckling recess 528b. The positioning blocks 527a and the buckling pieces 528a are alternately arranged on the periphery of the insertion portion 526 in sequence. The first alignment structure 424 of the power connection base 42 includes a plurality of alignment holes 424a for correspondingly accommodating the alignment blocks 527a, and the first buckling structure 425 includes a plurality of aligning holes 424a respectively used to connect the buckling pieces The buckling recess 528b of 528a corresponds to the plurality of buckling blocks 425a to be buckled. The fastener 525 has an insulating head 525a limited between the conductive block 521 and the upper shell 523, an insulating tail 525b opposite to the insulating head 525a, and an insulating head 525a and an insulating tail 525b. In the first embodiment, the insulating head 525a and the insulating tail 525b are formed on the fastener 525 by injection overmolding of insulating material. The upper shell 523 has an opening 523a for exposing the insulating head 525a, and the sleeve 422 has an inner threaded hole 422a for mating and locking with the outer threaded portion 525c of the fastener 525. An outer ring surface 422b with a tapered lower width, a lower flange 422c with a larger width at the bottom, and a plurality of clamping teeth 422d adjacent to the lower flange 422c. With the outer ring surface 422b, the sleeve 422 can be easily pushed into the first conductive ring 421 from below, and can be tightly fitted with the inner wall surface of the first conductive ring 421, and the lower flange 422c can abut against Under the first conductive ring 421, the clamping teeth 422d can interferingly clamp under the inner wall surface of the first conductive ring 421 to increase the holding force between the sleeve 422 and the first conductive ring 421 . The power connector 42 also has an insulating protection ring 426 set at the upper end of the sleeve 422 and made of insulating material. The insulating head 525a, the insulating tail 525b, and the insulating protection ring 426 can prevent use A person is electrocuted in the process of docking the power connector 52 with the power connector 42. And through the buckle structure and alignment structure provided between the power connector 52 and the power connector 42 and the fastener 525 and the sleeve 422, the power connector 52 and the power connector 42 can be quickly and aligned. Docking. In addition, the electrode unit 4 further includes a protective cover 44 for covering the power connection base 42. The protective cover 44 has a cover 441 for covering the power connection base 42 and the cover 441 A second buckling structure 442 extending and substantially the same as the second buckling structure 528 of the power connector 52. The second buckling structure 442 of the protective cover 44 can be buckled to the first buckling structure 425 The protective cover 44 is covered on the power connection base 42, so that the protective cover 44 can cover and protect the power connection base 42 when the power connection base 42 is not docked with the power connector 52. In addition, referring to FIGS. 1 and 12 in conjunction, in the first embodiment, each power connection bar 5 further has a plurality of protection pads 53 formed on the insulating outer layer 512, and the protection pads 53 are provided to strengthen the A plurality of fixing members 54 fixed by the conductive strip 51, each fixing member 54 has a belt portion 541 sleeved on the protective pads 53, and a fixing portion for inserting or clamping in the frame of a housing 542. The conductive strips 51 of the power connection strip 5 can be fixed in place by the fixing members 54 to prevent the conductive strips 51 of the power connection strip 5 from hooking to other objects and being pulled.

Referring back to FIGS. 1 to 3, the carrier plate 1 is also formed with a plurality of alignment protrusions 18 and a plurality of buckling protrusions 19 located on both sides of the width direction D2. In the first embodiment, , Each side is provided with two alignment bumps 18, the alignment bumps 18 are in an inverted L shape to respectively align to the edge of the battery pack 20, and the alignment bumps 18 on both sides are at The width direction D2 is staggered two by one. The upper cover 6 is arranged above the carrier plate 1, and the upper cover 6 is formed with a plurality of alignment grooves 61 for the alignment projections 18 to penetrate correspondingly, and a plurality of alignment grooves 61 for the buckling projections 19 to be buckled correspondingly. The buckle hole 62, the two connection socket openings 63 respectively corresponding to the power connection sockets 42, and the connector opening 64 corresponding to the electrical connector 7. The matching of the alignment protrusions 18 and the alignment grooves 61 that are staggered in the width direction D2 can prevent the user from covering the upper cover 6 on the carrier plate 1 in the wrong direction.

Referring to FIGS. 13 to 16, the difference between a battery connection module 100' of a second embodiment of the present invention and the battery connection module 100 of the first embodiment is that the second embodiment has two battery packs , Respectively, are a first battery pack 202 and a second battery pack 203 side by side with each other, and the number of batteries 201 of the first battery pack 202 and the second battery pack 203 is 18 each. The busbars 2 are roughly divided into four rows along the width direction D2, and two of the rows are suitable for electrically connecting the first battery pack 202, and the other two rows are suitable for electrically connecting the second battery pack 203, and the flexible circuit board 3 The number is two and corresponds to two rows of bus members 2 electrically connected to the first battery pack 202 and the other two rows of bus members 2 electrically connected to the second battery pack 203 respectively. The battery connection module 100' also includes two bridging type bus pieces 9 assembled on the carrier plate 1', and two holding pieces 10 for bridging sections. The two jumper type bus pieces 9 are assembled on the carrier plate 1', and each jumper type bus piece 9 has a first bus section 91 suitable for electrically connecting the first battery pack 202, and suitable for electrically connecting the first battery pack 202. A second bus section 92 of the second battery pack 203 and a bridge section 93 connected to the first bus section 91 and the second bus section 92. The bridge section 93 is folded into a multi-layer structure with a reduced width to reduce the width. It is installed and can load a large current at the same time. The bridge section 93 has a three-layer structure in the second embodiment, but it can also be a multi-layer structure with other layers, and is not limited to this. In addition, the first bus section 91, the second bus section 92, and the bridge section 93 are formed in an integral structure in the second embodiment, and the integrally structured bridging bus piece 9 directly bridges the two batteries. Battery pack (the first battery pack 202 and the second battery pack 203), omitting the solder joints or wiring used to connect the two battery packs (the first battery pack 202 and the second battery pack 203) in series in the prior art Of contacts. The carrier plate 1'is provided with an accommodating portion 110 located at one end of the longitudinal direction D1, and the accommodating portion 110 has a first step portion 1101 and a second step portion 1102 located at different heights to support respectively The bridging sections 93 which are partially staggered and stacked one above the other are accommodated. The holding pieces 10 for bridging sections are respectively pressed against the edges of the bridging sections 93, and each holding piece 10 for bridging sections has a structure for holding the corresponding bridging bus piece 9 by directly pressing against the bridging section 93. The bridging section 93 is at a holding end 101 of the carrier plate 1 ′, and a fixed end 102 suitable for being fixed to one of the adjacent end plates 301 by, for example, welding. The accommodating portion 110 is also provided with three holding posts 1103 passing through the bridging sections 93 and the holding ends 101 of the bridging section holders 10, and the bridging sections of the bridging busbars 9 are assembled. After 93 and the holding parts 10 for the bridge sections, the ends of the holding posts 1103 can be heat-melted to form an enlarged head (not shown), so as to hold the bridge sections of the bridge-type bus 9 93 and the bridge section with the holder 10. In addition, referring to FIGS. 17 to 18 in conjunction, in the second embodiment, the surface of the bridge section 93 on which the two jumper busbars 9 are superimposed is covered with an insulating layer 94, and the bridge section uses a holder The surface of the holding end 101 of 10 is covered with an insulating layer 103. The insulating layer 94 and the insulating layer 103 as shown by the darkened and deepened parts in the figure, for example, can be made of plastic or resin, and can be formed by spraying, coating, or overmolding.

19-20, the receiving grooves 17' are formed at the other end of the carrier plate 1'in the length direction D1 opposite to the position where the receiving portion 110 is formed, and are arranged along the width direction D2. Each receiving groove 17' is provided with two insertion frames 173, and each electrode piece 41' is formed with an opening 411 for the corresponding insertion frame 173 to pass through, and the holding ends of the holding parts 43' of the electrode pieces 431 is correspondingly inserted into the insertion frame 173 and directly overlaps the upper surface of the corresponding electrode sheet 41'. An insulating layer 412 and an insulating layer 433 are respectively provided on the surface of the portion where the holding end 431 of the electrode sheet holder 43' and the electrode sheet 41' overlap each other. The insulating layer 412 and the insulating layer 433 shown in the darkened and deepened parts in the figure, for example, can be made of plastic or resin, and can be formed by spraying, coating, or overmolding. In addition, the insulating layer 412 The insulating layer 433 may also be an insulating sleeve assembled in a sleeve manner, and it is not limited to this. In the second embodiment, each receiving groove 17' is further provided with a hook 174 for buckling the corresponding electrode sheet 41' to strengthen the holding force of the electrode sheet 41'.

Referring to FIG. 21, in addition, the power connection bar 5'in the second embodiment is different from the power connection bar 5 of the first embodiment in that the insulating head 525a and the insulating tail 525b of the power connection bar 5' It is installed on the fastener 525 in an assembled manner, but it can also be constructed by overmolding as in the first embodiment. The conductive portion 511 is a solid copper material, and the cross section of the conductive portion 511 covered by the insulating outer layer 512 is circular.

Referring to FIGS. 22 to 25, it should be noted that in a modified embodiment, the electrode sheet 41' and the first conductive ring 421 are assembled. In this modified embodiment, each electrode sheet 41' A setting hole 413 is formed, and the first conductive ring 421 of the corresponding power connection seat 42 is correspondingly penetrated through the setting hole 413. Thereby, the electrode sheet 41' can be assembled with the first conductive ring 421 into two forms with the front side or the back side facing upwards respectively (as shown in FIG. 25) to meet the requirements of different space configurations.

Referring to FIGS. 26-27, a plurality of the above-mentioned first and second embodiments and their batteries are assembled in a housing to form a power supply device 200. The figure only shows that the housing of the power supply device may include In the base 200a, the battery packs of the first and second embodiments described above are connected in series through the battery connection modules 100, 100' and their power connection bars 5, 5', so that the power supply device 200 can provide large current that meets the requirements . It should be noted that the arrangement of the battery connection modules 100, 100' and the battery pack and the arrangement of the power connection bars 5, 5'are only examples, and they can be adjusted according to requirements. In addition, referring to FIG. 1, the above-mentioned end plates 301 are the two ends of the battery housing 30. In a modified implementation, the end plates 301 may be separately provided at the two ends of the battery pack, and may not be part of the battery housing 30. In another variation, the end plate 301 may be a partition of the lower seat 200a, for example, the lower seat 200a may be provided with multiple partitions to configure a space for placing the battery pack, and the partition at the end of the battery pack can function It is the end plate described in this case.

In summary, the battery connection module 100 of the present invention directly bridges the two battery packs (the first battery pack 202 and the second battery pack 203) through the integrally structured jumper type bus 9, omitting the prior art A solder joint or a connection point constructed between two battery packs (the first battery pack 202 and the second battery pack 203) in series. The bridge section 93 is folded into a multi-layer structure with a reduced width in the width direction D2, so as to reduce the width to facilitate installation and at the same time can load a large current. In addition, the temperature sensor 33 electrically connected to the circuit trace of the flexible circuit board 3 is directly fixed on the extension arm 32 of the flexible circuit board 3 and is directly correspondingly placed in the recess 231 of the busbar 2, so as to make the assembly simple and easy. Temperature sensing is more direct. In addition, the electrode sheet holders 43, 43' provide the electrode sheets 41, 41' with greater strength (torque or force in other directions) to avoid displacement or vibration of the electrode sheets 41, 41'. Furthermore, the buckling structure and alignment structure provided between the power connector 52 and the power connector 42 as well as the fastener 525 and the bushing 422 enable the power connector 52 and the power connector 42 to quickly and align. Bit docking. Furthermore, the electrode sheets 41, 41' are overlapped on the busbar 2 made of dissimilar metal materials, thereby improving the welding performance of the components, increasing the conductivity, and reducing heat accumulation.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

100: Battery connection module 100’: Battery connection module 1: Carrier plate 1’: Carrier plate 11: Lower limit bar 12: Upper limit block 13: Upper limit hook 14: Positioning column 15: accommodating recess 16: Mounting seat 161: Snap hook 17: Containment slot 17’: Containment slot 171: Keep the block 171a: Slot 172: Limit Slot 173: Insert box 174: Snap Hook 18: Alignment bump 19: buckle bump 110: accommodating part 1101: The first stage 1102: The second stage 1103: keep the column 2: Confluence piece 21: Electrode connection part 22: Arched buffer 23: Extension tab 231: Concave 24: Lap joint 3: Flexible circuit board 31: body 311: positioning hole 312: Bending buffer 313: Upper Folding Part 32: Extension arm 33: temperature sensor 34: attachment piece 35: voltage acquisition chip 4: Electrode unit 41: Electrode sheet 41’: Electrode sheet 410: Insert convex part 411: hole 412: Insulation layer 413: Setting hole 42: Power connector 421: first conductive ring 422: casing 422a: Internal threaded hole 422b: Outer ring surface 422c: lower flange 422d: card tooth 423: Shell 424: The first alignment structure 424a: Alignment hole 425: The first buckle structure 425a: buckle block 426: Insulation protection ring 43: holder for electrode sheet 43’: Holder for electrode sheet 431: keep the end 432: fixed end 433: Insulation layer 44: cover 441: Lid 442: Second buckle structure 5: Power connection strip 5’: Power connection strip 51: Conductive strip 511: Conductive part 512: Insulation outer layer 52: Power connector 521: Conductive Block 521a: Perforation 522: second conductive ring 523: upper shell 523a: opening 523b: Fastening hole 524: lower shell 524a: Fastening block 525: Fastener 525a: insulated head 525b: insulated tail 525c: External thread 526: Socket 527: Second Alignment Structure 527a: Counterpoint block 528: Second buckle structure 528a: Buckle piece 528b: buckle recess 53: Protective pad 54: fixed parts 541: Girdle 542: fixed part 6: Upper cover 61: Alignment slot 62: buckle hole 63: Connection seat opening 64: Connector opening 7: Electrical connector 70: buckle groove 71: pin 72: Protective cover 8: Backplane 9: Jumper type junction 91: The first confluence section 92: The second confluence section 93: Bridging section 94: Insulation layer 10: Holder for bridging section 101: Keep the ends 102: fixed end 103: Insulation layer 20: battery pack 201: Battery 202: The first battery pack 203: The second battery pack 30: battery housing 301: End plate 302: guard frame 200: power supply device 200a: lower seat D1: length direction D2: width direction D3: Up and down direction

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: 1 is a perspective view of a first embodiment of the battery connection module of the present invention; Fig. 2 is a three-dimensional exploded view of Fig. 1, with the power connection strip omitted in the figure; Figure 3 is a perspective exploded view of Figure 2; 4 is a partial three-dimensional exploded view illustrating the recessed portion of the bus and the temperature sensor of the flexible circuit board of the first embodiment; 5 is a partial perspective view illustrating the receiving groove and electrode unit of the carrier plate of the first embodiment; 6 is a top view of the first embodiment, the upper cover of the first embodiment is omitted in the figure; Figure 7 is a cross-sectional view taken along the line VII-VII in Figure 6; Figure 8 is a perspective view illustrating the power connector of the power connection bar and the power connector of the electrode unit of the first embodiment; Figure 9 is a perspective exploded view of Figure 8; 10 is a top view illustrating that the power connector of the power connection bar of the first embodiment is connected to the power connector of the electrode unit; Figure 11 is a cross-sectional view taken along line XI-XI in Figure 10; Figure 12 is a partial three-dimensional exploded view illustrating the protective pad and fixing member of the power connection strip of the first embodiment; 13 is a perspective view of a second embodiment of the battery connection module of the present invention; Figure 14 is a perspective exploded view of Figure 13; FIG. 15 is a partial perspective view illustrating that the bridge portion of the bridge type bus of the second embodiment is provided in the accommodating portion of the carrier plate; Figure 16 is a partial three-dimensional exploded view of Figure 15; Figure 17 is a perspective view illustrating the bridge type bus of the second embodiment; Figure 18 is a perspective view of Figure 17 viewed from another perspective; Figure 19 is a partial perspective exploded view illustrating the electrode unit of the second embodiment; Figure 20 is a partial three-dimensional exploded view further based on Figure 19; Figure 21 is a perspective exploded view illustrating the power connection strip of the second embodiment; Figure 22 is a perspective exploded view illustrating an electrode unit in a modified embodiment; FIG. 23 is a top view illustrating the electrode unit in the modified embodiment; Figure 24 is a cross-sectional view taken along the line XXIV-XXIV in Figure 23; FIG. 25 is a perspective view illustrating the electrode pieces of the electrode unit of the modified embodiment; FIG. 26 is a perspective view illustrating a power supply device constructed by assembling the batteries in the lower base of the first embodiment and the second embodiment as described above; and Fig. 27 is an exploded perspective view of Fig. 26.

100’: Battery connection module

1’: Carrier plate

17’: Containment slot

173: Insert box

174: Snap Hook

110: accommodating part

1101: The first stage

1102: The second stage

1103: keep the column

2: Confluence piece

4: Electrode unit

41’: Electrode sheet

411: hole

412: Insulation layer

42: Power connector

421: first conductive ring

43’: Holder for electrode sheet

431: keep the end

432: fixed end

433: Insulation layer

9: Jumper type junction

91: The first confluence section

92: The second confluence section

93: Bridging section

94: Insulation layer

10: Holder for bridging section

101: Keep the ends

102: fixed end

103: Insulation layer

201: Battery

202: The first battery pack

203: The second battery pack

30: battery housing

301: End plate

302: guard frame

D1: length direction

D2: width direction

D3: Up and down direction

Claims (30)

A battery connection module is suitable for connecting a first battery pack and a second battery pack side by side with each other. The battery connection module includes: a carrying plate; a plurality of bus pieces assembled on the carrying plate, and the bus pieces One part is suitable for electrically connecting the first battery pack, and the other part is suitable for electrically connecting the second battery pack; and two jumper type bus pieces assembled on the carrier plate, and each jumper type bus piece has a suitable A first bus section electrically connected to the first battery pack, a second bus section suitable for electrically connecting the second battery pack, and a bridge section connected to the first bus section and the second bus section. The battery connection module according to claim 1, wherein the first bus section, the second bus section, and the bridge section of each jumper bus are formed in an integral structure. The battery connection module according to claim 2, wherein each bridge section is folded into a multi-layer structure with a reduced width. The battery connection module according to claim 3, wherein the carrier plate is provided with a accommodating portion for accommodating the bridging sections of the jumper buss which are stacked on top of each other. The battery connection module according to claim 4, further comprising a holder for a bridge section, the holder for a bridge section having a bridge section holding one of the bridge-type busbars at a holding end of the carrier plate, and It is suitable for fixing on a fixed end of one end plate. The battery connection module according to claim 5, wherein the accommodating portion is provided with a holding column penetrating the bridge section and the holding member for the bridge section. The battery connection module according to claim 6, wherein the surface of the bridge section on which the two jumper busbars are overlapped is covered with an insulating layer. The battery connection module according to claim 7, wherein the surface of the holding end of the bridge segment holder is covered with an insulating layer. The battery connection module according to claim 8, wherein the accommodating portion has a first step portion and a second step portion located at different heights to respectively support and accommodate the two jumper bus parts Staggered overlapping bridge sections. A battery connection module includes: a carrying plate; a plurality of bus members assembled on the supporting plate; and a flexible circuit board, including a body provided on the supporting plate and an extension extending from the body toward the bus An arm, and a temperature sensor disposed on the extension arm and electrically connected to the circuit trace of the flexible circuit board, and the bus piece is formed with a recess corresponding to the temperature sensor. The battery connection module according to claim 10, wherein the flexible circuit board further comprises an attachment piece attached to the extension arm and the busbar to fix the extension arm on the busbar. The battery connection module according to claim 11, wherein the attachment piece is attached to a surface of the extension arm facing the temperature sensor. The battery connection module according to claim 12, wherein the concave portion of the busbar is filled with a thermally conductive filler covering the temperature sensor. The battery connection module according to any one of claims 10 to 13, wherein the busbar has an extension tab extending in the direction of the corresponding extension arm, and the recess is formed on the extension tab. A battery connection module includes: a bearing plate formed with a receiving groove; A plurality of bus members are assembled on the carrier plate; and an electrode unit is overlapped with one of the bus members. The electrode unit includes an electrode sheet, a power connection seat, and a holder for the electrode sheet, and the electrode sheet is arranged on The accommodating groove of the carrier plate is overlapped with the corresponding bus, the power connection seat is arranged on the electrode sheet, the holder for the electrode sheet has a holding end for holding the electrode sheet on the carrier disc, and is suitable for Fixed on a fixed end of one end plate. The battery connection module according to claim 15, wherein the holding end of the electrode sheet holder is stacked on the upper surface of the electrode sheet. The battery connection module according to claim 16, wherein the holding end of the electrode sheet holder and the surface of the portion where the electrode sheet overlaps each other are provided with insulating layers. The battery connection module according to claim 16 or 17, wherein an insertion frame is provided at the receiving slot, and the holding end of the electrode sheet holder is correspondingly inserted in the insertion frame. The battery connection module according to claim 18, wherein the electrode sheet is formed with an opening through which the corresponding insertion frame passes. The battery connection module according to claim 19, wherein the receiving slot is provided with a hook for buckling the electrode sheet. The battery connection module according to claim 15, wherein the receiving groove is provided with a holding block, the end of the electrode sheet extends below the corresponding holding block, and the holding end of the holding member for the electrode sheet is assembled to the holding block . The battery connection module according to claim 21, wherein a limiting groove corresponding to the end of the electrode sheet is formed under the holding block, and the holding block is formed with a holding member corresponding to the holding member for accommodating the electrode sheet A slot at the end. The battery connection module according to claim 22, wherein the side edge of the holding end of the electrode sheet holder is formed with an interference protrusion that interferes with the slot. A battery connection module includes: a carrier plate; a plurality of bus members assembled on the carrier plate; an electrode unit overlapped with one of the bus members, the electrode unit includes an electrode sheet, and a power connection seat, the The electrode sheet is arranged on the carrier plate and overlapped on the corresponding bus piece, and the electrode sheet and the bus piece are made of different metal materials. The power connection seat is arranged on the electrode sheet, and the power connection seat has an electrode A first conductive ring on the sheet, a sleeve tube provided on the electrode sheet and passing through the first conductive ring, and a shell provided on the electrode sheet and located on the periphery of the first conductive ring, the shell forming a first Alignment structure, and a first fastening structure; and a power connection strip, including a conductive strip, and a power connector arranged at the end of the conductive strip and used for mating with the power connector, the power connector It includes a conductive block lapped at the end of the conductive strip and formed with a through hole, a second conductive ring provided on the conductive block corresponding to the through hole, an upper shell and a lower shell assembled with each other to jointly accommodate the second conductive ring Shell, and a fastener which penetrates the through hole of the conductive block and the second conductive ring and is movably confined between the conductive block and the upper shell, and the lower shell is integrally formed on the periphery of the second conductive ring The plug-in portion, the second alignment structure corresponding to the first alignment structure, and the second buckling structure corresponding to the first buckling structure, wherein the power connector is matched with the power connector After connection, the plug-in portion is inserted into the casing, the fastener is assembled to the sleeve, and the first conductive ring and the second conductive ring are in contact with each other to electrically connect the electrode sheet and the conductive strip. The battery connection module according to claim 24, wherein the second alignment structure of the power connector includes a plurality of alignment blocks, the second buckling structure includes a plurality of buckling pieces, and the alignment blocks are connected to The buckle pieces are alternately arranged on the periphery of the plug-in part in sequence, and the power connection seat The first alignment structure includes a plurality of alignment holes for correspondingly accommodating the alignment blocks, and the first buckling structure includes a plurality of buckling blocks corresponding to the buckling pieces. . The battery connection module according to claim 25, wherein the fastener has an insulating head located between the conductive block and the upper case, an insulating tail opposite to the insulating head, and an insulating tail located on the insulating head. An external threaded portion between the head and the insulating tail, the upper shell has an opening for exposing the insulating head, and the sleeve has an internal thread for mating and locking with the external thread of the fastener The power connection seat also has an insulating protection ring set at the upper end opening of the sleeve. The battery connection module according to claim 24, wherein the electrode sheet is formed with a setting hole, the first conductive ring of the power connection seat is correspondingly penetrated through the setting hole, and the sleeve is correspondingly penetrated through the first conductive ring. Inside the ring. The battery connection module according to claim 24, wherein the first conductive ring of the power connection base and the electrode sheet are integrally constructed, and the sleeve is correspondingly penetrated in the first conductive ring. The battery connection module according to claim 24, wherein the conductive strip has a conductive portion composed of multiple layers of copper material, and the conductive block of the power connector is a solid copper material. The battery connection module according to claim 24, wherein the busbars are aluminum materials, and the electrode sheets are solid copper materials.

Images