KR102239597B1 - A battery connection module - Google Patents

Abstract

The battery connection module includes a plurality of busbars, two straddle busbars, a flexible circuit board, an electrode unit, and a power connection strip. Each straddle-type busbar has a first busbar section for electrically connecting the first battery group, a second busbar section for electrically connecting the second battery group, and a bridge connection between the two. It has a section. The flexible circuit board includes an extension arm and a temperature sensor installed on the extension arm, and a recess in which the temperature sensor is correspondingly accommodated is formed in the bus bar. The electrode unit includes an electrode plate lab-joined to a bus bar, an electrode plate holding member for holding the electrode plate, and a power connection sheet installed on the electrode plate. The power connection strip includes a power connection head that engages the power connection sheet with the casing tube through a fastening structure, an alignment structure, and a fastening member.

Description

Battery connection module {A BATTERY CONNECTION MODULE}

The present invention relates to a battery connection module, and more particularly, to a battery connection module for connecting a group of batteries in a modular manner.

U.S. Patent No. US8,879,262 (corresponding Chinese Invention Patent Application No. CN201080048799.1) discloses only the structure of the foldable busbar portion of the busbar.

Chinese Utility New Safety Notice No. CN206806468U disclosed that a temperature sensor is mounted on the bus bar and fixed in the recess of the bus bar. However, the temperature sensor and the circuit board must be connected through separate wire bonding or wiring, so the structure and manufacturing are relatively complicated, and the connection structure of the wire bonding is relatively easy to be damaged.

Chinese Utility New Safety Notice No. CN206742321U (corresponding Chinese Invention Patent Publication No. CN107046114A) discloses that the busbar is fixed to the side plate at the end of the battery module through the adapter base sheet. Since the busbar and the diaphragm at the end of the battery module are connected through a separate adapter base sheet, the three parts must have a structure that is interleaved and assembled, and thus the structure is relatively complex and unstable.

US Patent Publication No. US2018/0287270A1 (corresponding Chinese Invention Patent Publication No. CN108695602A) discloses that the first conductor and the second conductor are electrically connected through a connector, and the fastening structure part of the connector is similar to the present invention, but between the connectors. Further innovation is needed to improve the mating so that the positions are quickly matched, and also, the first conductor and the second conductor are not connected to the battery busbar.

Accordingly, an object of the present invention is to provide a battery connection module capable of improving at least one disadvantage of the prior art.

Accordingly, in some embodiments, the battery connection module of the present invention is for connecting a first battery group and a second battery group arranged in parallel with each other, and the battery connection module includes a loading tray, a plurality of bus bars, and two switches. Includes a tradle-type busbar. The busbar is assembled to the loading tray, and a portion of the busbar is for electrically connecting the first battery group, and another portion is for electrically connecting the second battery group. The two straddle-type busbars are assembled on the loading tray, and each straddle-type busbar electrically connects a first busbar section for electrically connecting the first battery group and the second battery group. And a second bus bar section for connecting to each other, and a bridge connection section connected to the first bus bar section and the second bus bar section.

In some implementations, the first busbar section, the second busbar section, and the bridge connection section of each straddle busbar are formed in an integrated structure.

In some embodiments, each bridge connection section is folded into a multi-layered structure in a reduced width.

In some implementations, a storage unit for accommodating a bridge connection section of the straddle-type busbar that is vertically overlapped on the loading tray is installed.

In some implementations, it further comprises a holding member for a bridge connection section, wherein the holding member for the bridge connection section is a holding end for holding the bridge connection section of one of the straddle-type busbars in the loading tray, and an end It has a fixed end for fixing to the plate.

In some implementations, a retaining column through which the retaining member for the bridge connection section and the bridge connection section is installed is installed in the receiving part.

In some implementations, an insulating layer is covered and installed on the surface of the bridge connection section in which the two straddle busbars are overlapped with each other.

In some embodiments, an insulating layer is coated on the surface of the holding end of the holding member for the bridge connection section.

In some implementations, a first step portion and a second step portion positioned at different heights are provided in the receiving portion, respectively supporting and receiving a bridge connection section in which the two straddle busbars are partially overlapped with each other. do.

Thus, the battery connection module of the present invention, in some embodiments, includes a loading tray, a plurality of busbars, and a flexible circuit board. The bus bars are assembled on the loading tray, and the flexible circuit board includes a main body installed on the loading tray, an extension arm extending from the main body toward the bus bar, and a circuit of the flexible circuit board. A temperature sensor electrically connected to a trace line is included, and a concave portion for accommodating the temperature sensor is formed in the bus bar.

In some embodiments, the flexible circuit board further includes an attachment plate attached to the extension arm and the bus bar to fix the extension arm to the bus bar.

In some embodiments, the attachment plate is attached to a surface that faces the temperature sensor of the extension arm.

In some implementations, the concave portion of the busbar is filled with a thermally conductive filler covering the temperature sensor.

In some embodiments, the bus bar includes an extended protruding plate extending in a direction of a corresponding extended arm, and the concave portion is formed in the extended protruding plate.

Thus, the battery connection module of the present invention, in some embodiments, includes a loading tray, a plurality of busbars, and an electrode unit. A receiving groove is formed in the loading tray, the bus bars are assembled to the loading tray, and the electrode unit is lab-joined to one of the bus bars, and the electrode unit is an electrode plate, a power connection sheet, and an electrode plate. And a holding member, wherein the electrode plate is installed in the receiving groove of the loading tray and lap-joined to a corresponding bus bar, the power connection sheet is installed on the electrode plate, and the holding member for the electrode plate supports the electrode plate. It has a holding end to be held on the loading tray, and a fixed end to be fixed to the end plate.

In some embodiments, the holding end of the holding member for the electrode plate is installed to overlap the upper surface of the electrode plate.

In some implementations, insulating layers are respectively installed on the surface of the holding end of the holding member for the electrode plate and the portion where the electrode plate is overlapped with each other.

In some embodiments, an insertion frame is installed in the receiving groove portion, and a holding end of the holding member for the electrode plate is inserted and installed corresponding to the insertion frame.

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

In some implementations, a fastening hook for fastening the electrode plate is installed in the receiving groove.

In some embodiments, a retaining block is installed in the receiving groove, an end of the electrode plate is inserted under a corresponding retaining block, and a retaining end of the retaining member for the electrode plate is assembled to the retaining block.

In some embodiments, a position limiting groove in which an end of the electrode plate is correspondingly accommodated is formed under the retaining block, and an insertion groove in which the retaining end of the retaining member for the electrode plate is correspondingly accommodated is formed in the retaining block.

In some embodiments, an interference protruding block is formed at a side edge of the holding end of the holding member for the electrode plate to interfere with the insertion groove.

Thus, the battery connection module of the present invention, in some embodiments, includes a loading tray, a plurality of busbars, an electrode unit, and a power connection strip. The bus bars are assembled on the loading tray, the electrode unit is wrap-joined to one of the bus bars, and the electrode unit includes an electrode plate and a power connection sheet, and the electrode plate is installed on the loading tray. Wrap-jointed to a corresponding bus bar, and the electrode plate and the bus bar are made of different metal materials, the power connection sheet is installed on the electrode plate, the power connection sheet is a first conductive ring installed on the electrode plate, the A casing tube installed on the electrode plate and penetrating the first conductive ring, and a housing installed on the electrode plate and positioned around the outer circumference of the first conductive ring, and a first alignment (對位) structure, and a first fastening structure is formed. The power connection strip includes a conductive strip, and a power connection head installed at an end of the conductive strip to be coupled to the power connection sheet, and the power connection head is wrap-joined at the end of the conductive strip and a through hole is formed. , A second conductive ring installed in the conductive block corresponding to the through hole, an upper housing and a lower housing assembled with each other and accommodated together in the second conductive ring, and penetrating through the through hole of the conductive block and the second conductive ring Includes a fastening member that is installed and is movably limited in position between the conductive block and the upper housing, and an insertion coupling part positioned on the outer circumference of the second conductive ring in the lower housing, corresponding to the first alignment structure A second alignment structure to be matched, and a second fastening structure correspondingly matched with the first fastening structure are formed, among which, after the power connection head and the power connection sheet are coupled, the insertion coupling part is inserted into the housing. The fastening member is assembled to the casing tube, and the first conductive ring and the second conductive ring are in contact with each other, thereby electrically connecting the electrode plate and the conductive strip.

In some implementations, the second alignment structure of the power connection head includes a plurality of alignment blocks, the second fastening structure includes a plurality of fastening plates, and the alignment block and the fastening plates are sequentially inserted and coupled. It is alternately installed around the outer periphery of the unit, the first alignment structure of the power connection sheet includes a plurality of alignment holes for respectively receiving the alignment block, the first fastening structure is a plurality of each correspondingly fastened to the fastening plate Includes a fastening block of.

In some embodiments, the fastening member is positioned between the insulating head portion and the insulating tail portion, the insulating head portion is limited in position between the conductive block and the upper housing, the insulating tail portion opposite to the insulating head portion, and the insulating head portion and the insulating tail portion. An external threaded portion to be formed, the upper housing has an opening exposing the insulating head portion, the casing tube has an internal threaded hole matched and locked to an external threaded portion of the fastening member, and the power connection sheet Further includes an insulating protective ring covered with the upper opening of the casing tube.

In some implementations, an installation hole is formed in the electrode plate, so that the first conductive ring of the power connection sheet is penetrated to correspond to the installation hole, and the casing tube is penetrated to correspond to the first conductive ring.

In some embodiments, the first conductive ring and the electrode plate of the power connection sheet are formed in an integrated structure, and the casing tube is provided through the first conductive ring to correspond to the first conductive ring.

In some embodiments, the conductive strip includes a conductive portion made of a multi-layered copper material, and the conductive block of the power connection head is made of a solid copper material.

In some implementations, the busbars are made of aluminum, and the electrode plate is made of solid copper.

The battery connection module of the present invention directly connects two battery groups through a straddle-type busbar of an integral structure, thereby omitting a welding point or a contact point configured to connect the two battery groups in series in the prior art. . The bridge connection section is folded in a form in which the width is reduced in the width direction to form a multi-layered structure, so that the width is reduced and thus it is advantageous to assemble and at the same time can bear a large current. In addition, the temperature sensor, which is electrically connected to the circuit trace line of the flexible circuit board, is directly fixed to the extension arm of the flexible circuit board and directly installed in the recessed part of the bus bar, so assembling is simple and easy, as well as the temperature. The detection is more direct. In addition, the holding member for the electrode plate provides a greater force strength (torsional force or other direction force) to the electrode plate, thereby preventing positional movement or vibration of the electrode plate. In addition, through a fastening structure, an alignment structure, and a fastening member and a casing tube installed between the power connection head and the power connection sheet, the power connection head and the power connection sheet can be quickly matched to each other so that their positions correspond to each other. In addition, by wrap-joining the electrode plate to a bus bar made of a different metal material, the welding performance of each component is improved, the conductivity is increased, and the accumulation of heat may be reduced.

Other features and technical effects of the present invention will be evident in the process of referring to the implementation method of the accompanying drawings. among them:
1 is a three-dimensional view of a first embodiment of a battery connection module of the present invention.
FIG. 2 is a three-dimensional exploded view of FIG. 1, in which the power connection strip is omitted.
3 is a three-dimensional exploded view of FIG. 2.
4 is a partial three-dimensional exploded view illustrating a concave portion of a bus bar and a temperature sensor of a flexible circuit board according to the first embodiment.
Fig. 5 is a partial three-dimensional view illustrating the receiving groove and electrode unit of the stacking tray according to the first embodiment.
6 is a bird's eye view of the first embodiment, in which the upper cover of the first embodiment is omitted.
7 is a cross-sectional view taken along line VII-VII in FIG. 6.
8 is a three-dimensional view illustrating the power connection head of the power connection strip and the power connection sheet of the electrode unit according to the first embodiment.
9 is a three-dimensional exploded view of FIG. 8.
10 is a bird's-eye view illustrating how the power connection head of the power connection strip of the first embodiment is correspondingly connected to the power connection sheet of the electrode unit.
11 is a cross-sectional view taken along line XI-XI in FIG. 10.
12 is a partial three-dimensional exploded view illustrating the protection pad and the fixing member of the power connection strip according to the first embodiment.
13 is a three-dimensional view of a second embodiment of the battery connection module of the present invention.
14 is a three-dimensional exploded view of FIG. 13.
15 is a local three-dimensional view illustrating that the bridge connection portion of the straddle-type bus bar of the second embodiment is installed in the receiving portion of the stacking tray.
16 is a partial three-dimensional exploded view of FIG. 15.
17 is a three-dimensional view illustrating the straddle-type busbar of the second embodiment.
18 is a three-dimensional view of FIG. 17 viewed from a different perspective.
19 is a local three-dimensional exploded view illustrating the electrode unit of the second embodiment.
20 is a more detailed local three-dimensional exploded view based on FIG. 19.
21 is a three-dimensional exploded view illustrating the power connection strip of the second embodiment.
22 is a three-dimensional exploded view illustrating an electrode unit in a modified example.
23 is a bird's-eye view illustrating an electrode unit in the modified embodiment.
24 is a cross-sectional view taken along line XXIV-XXIV in FIG. 23.
25 is a three-dimensional view illustrating an electrode plate of the electrode unit according to the modified embodiment.
26 is a three-dimensional view for explaining a kind of power supply device configured by mounting the first and second embodiments as described above and the battery group thereof on a lower sheet.
FIG. 27 is a three-dimensional exploded view of FIG. 26.

Before describing the present invention in detail, it should be noted that in the following description, similar configurations are denoted by the same reference numerals.

1 to 3, the battery connection module 100 according to the first embodiment of the present invention is for electrically connecting the battery group 20, and the battery group 20 includes a plurality of batteries 201. ) (12 in the first embodiment), and the battery group 20 is accommodated in a battery storage housing 30 together with a protection frame 302 installed at two ends, and the battery storage housing 30 It has end plates 301 located at both ends. The battery connection module 100 includes a loading tray (1), a plurality of bus bars (2), a flexible circuit board (3), two electrode units (4), two power connection strips (5), and an upper cover ( 6).

The loading tray 1 extends along the longitudinal direction D1 and is installed on the battery group 20, and is made of an insulating material. The bus bars (2) are divided into two rows in a width direction (D2) perpendicular to the length direction (D1) and assembled on the loading tray (1), and the batteries 201 of the battery group 20 are electrically connected to each other. It is to do. In the first embodiment, each bus bar 2 is connected between a plurality of electrode connection portions 21 connected to an electrode of the battery 201, and adjacent electrode connection portions 21 in the longitudinal direction D1 and A plurality of arcuate buffer portions 22 bent in a direction away from the loading tray 1 along the vertical direction D3 perpendicular to the width direction D2, and the arched buffer portions 22 have the width Extending along the direction D2, the loading tray 1 is a plurality of lower position limiting strips 11 supported under the arcuate buffer part 22 of the bus bar 2, and the bus bar 2 Including a plurality of upper position limiting blocks 12 and a plurality of upper position limiting fastening hooks 13, the lower position limiting strip 11, the upper limiting block 12, and the upper limiting positional fastening hooks 13 The position of the busbar 2 is jointly limited through.

Referring to FIG. 4 and FIG. 5 combined, the flexible circuit board 3 is installed on the loading tray 1 and is located between the two rows of bus bars 2, from the main body 31 A plurality of extension arms 32 extending toward the bus bar 2, and a plurality of temperature sensors 33 installed on the extension arms 32 and electrically connected to the circuit trace lines of the flexible circuit board 3 (For example, it includes an NTC thermistor (Negative Temperature Coefficient thermistor, negative temperature coefficient thermistor). The bus bar 2 further includes an extension protruding plate 23 extending in the direction of the corresponding extension arm 32, In addition, a concave portion 231 in which the temperature sensor 33 is correspondingly accommodated is formed on the upper surface of the distal end portion of the extended protruding plate 23 of the bus bar 2. In one modified embodiment, the bus bar 2 is extended. The concave portion 231 may be directly formed without having the protruding plate 23, or in another modified embodiment, the concave portion 231 may be a blind hole type. In the first embodiment, the flexible circuit board. (3) further includes a plurality of attachment plates 34, and the attachment plates 34 may be made of nickel, for example, and the attachment plates 34 are extended through a method such as welding. The temperature sensor 33 of the arm 32 is attached to the back surface and the bus bar 2 to fix the extension arm 32 to the bus bar 2. In addition, the bus bar 2 ) May be filled with a thermally conductive filler (not shown) covering the temperature sensor 33, and the thermally conductive filler may be, for example, a thermally conductive adhesive, or the like, through a thermally conductive filler. The thermal energy of the bus bar 2 may be helped to be transferred to the temperature sensor 33, but is not limited thereto. The temperature sensor 33 electrically connected to the circuit trace line of the flexible circuit board 3 is provided. Directly fixed to the extension arm (32) of the flexible circuit board (3) and concave the bus bar (2). By directly corresponding installation in the part 231, assembly is simple and easy, temperature detection is more direct, and the method of attaching the attachment plate 34 to the extension arm 32 and the bus bar 2 Through this, it is possible to reinforce the fixing between the extension arm 32 and the bus bar 2.

In the first embodiment, a plurality of positioning holes 311 in the main body 31 of the flexible circuit board 3, while being recessed down along the vertical direction D3, along the width direction D2 A plurality of refraction buffer portions 312 extending, and an upward refraction portion 313 that is refracted upward along the vertical direction D3 are further formed, and the loading tray 1 penetrates the positioning hole 311 A plurality of positioning pillars 14 to be installed, a plurality of receiving concave portions 15 in which the refractive buffer unit 312 is accommodated, and a mounting sheet 16 adjacent to the upwardly bent portion 313 are further provided. The positioning pillar 14 may be fixed to the flexible circuit board 3 through a head portion of an enlarged end by hot melting. The battery connection module 100 further includes an electrical connector 7 electrically connected to the upwardly bent portion 313 and a back plate 8. Two fastening hooks 161 facing each other along the longitudinal direction D1 are formed on the mounting sheet 16, so that the electrical connector 7 is fastened and supported by the mounting sheet 16, and the mounting Two fastening grooves 70 that are fastened in correspondence with the fastening hooks 161 of the sheet 16, and the circuit traces of the flexible circuit board 3 are provided through the upwardly bent part 313 while positioned at the rear side. It includes a plurality of pins 71 electrically connected to the wire. The back plate 8 is fixed to the pin 71 so that the upwardly bent portion 313 is fitted together with the electrical connector 7, so that between the electrical connector 7 and the upwardly bent portion 313 Strengthens the holding power of the. In addition, the flexible circuit board 3 is electrically connected to the main body 31 and contacts each of the bus bars 2 to thereby collect voltage information of the bus bars 2. ) Is further provided. The state information (for example, temperature, voltage, etc.) of the battery group 20 can be collected through the temperature sensor 33 and the voltage collecting plate 35 of the flexible circuit board 3, and the flexible circuit The status information may be transmitted to a battery management device (not shown) correspondingly coupled to the electrical connector 7 through the electrical connector 7 electrically connected to the substrate 3. The electrical connector 7 further has a protective cover 72 for protecting the electrical connector 7 when the electrical connector 7 is not correspondingly engaged with the device.

3, 5 to 7, two receiving grooves 17 located at both ends of the longitudinal direction D1 are further formed in the stacking tray 1, and each receiving groove 17 is A retaining block 171 is installed, and a position limiting groove 172 is formed under the retaining block 171. The two electrode units 4 are lab-joined to two of the bus bars 2, and each electrode unit 4 includes an electrode plate 41, a power connection sheet 42, and a holding member for an electrode plate. It includes (43). The electrode plate 41 is installed in the corresponding receiving groove 17 of the loading tray 1 and is lap-joined to the wrap joint part 24 formed by the corresponding bus bar 2, and the electrode plate ( 41) is formed with an insertion protrusion 410 of a protruding plate structure, and the insertion protrusion 410 is inserted into the position limiting groove 172 below the corresponding retaining block 171, so that the position limiting groove 172 Is accommodated in The power connection sheet 42 is installed on the electrode plate 41, and the electrode plate holding member 43 is mounted on a corresponding holding block 171 to load the corresponding electrode plate 41 into a loading tray (1). ), and a fixed end 432 fixed to an adjacent end plate 301, for example, by welding. Insertion grooves 171a in which the holding ends 431 of the electrode plate holding members 43 corresponding to each of the holding blocks 171 are accommodated are formed, and the holding ends of the holding members 43 for each electrode plate ( 431) A plurality of interference protruding blocks interfering with the insertion groove (171a) are formed at both edges to enhance the fixing support between the holding member 43 for the electrode plate and the insertion groove 171a, and the holding member for the electrode plate 43 provides a greater force strength (torsion force or other direction force) to the electrode plate 41, thereby preventing displacement or vibration of the electrode plate 41.

8 to 11, the power connection sheet 42 is installed on the electrode plate 41, and the power connection sheet 42 is a first conductive ring 421 installed on the electrode plate 41 , The casing tube 422 installed on the electrode plate 41 and passing through the first conductive ring 421, and the casing tube 422 installed on the electrode plate 41 and positioned around the outer circumference of the first conductive ring 421 It is provided with a housing (423). In the first embodiment, the first conductive ring 421 and the electrode plate 41 are formed in an integrated structure, but may be a combination of other two-piece types, but are not limited thereto. The casing tube 422 passes through the electrode plate 41 and is provided through the first conductive ring 421. A first alignment structure 424 and a first fastening structure 425 are formed in the housing 423. The power connection strip 5 includes a conductive strip 51 and two power connection heads 52 installed at two ends of the conductive strip 51 and matched with the power connection sheet 42. Each power connection head 52 includes a conductive block 521 in which a through hole 521a is formed while wrap-joining an end of the conductive strip 51 and the conductive block 521 corresponding to the through hole 521a. A second conductive ring 522 installed in, an upper housing 523 and a lower housing 524 that are assembled together to accommodate the second conductive ring 522 and the conductive block 521, and the conductive block ( A through hole 521a of 521 and a fastening member 525 installed through the second conductive ring 522 so as to be movable between the conductive block 521 and the upper housing 523. In addition, the second conductive ring 522 and the conductive block 521 are formed in an integrated structure in the first embodiment, but may be a combination of other two-piece types, but are not limited thereto. The upper housing 523 and the lower housing 524 may be made of an insulating material, and in the first embodiment, the upper housing 523 has a plurality of fastening holes 523b formed at side portions, and the A plurality of fastening blocks 524a are formed in the lower housing 524 to correspond to the fastening holes 523b, through which the upper housing 523 and the lower housing 524 are fastened to each other and assembled with each other. In the lower housing 524, an insertion coupling part 526 positioned around the outer circumference of the second conductive ring 522, a second alignment structure 527 correspondingly matched with the first alignment structure 424, and the A second fastening structure 528 correspondingly matched with the first fastening structure 425 is integrally formed. Among them, after the power connection head 52 is coupled with the power connection sheet 42, the insertion coupling portion 526 is inserted into the housing 423, and the tightening member 525 is the casing tube It is assembled and connected to 422 so that the first conductive ring 421 and the second conductive ring 522 are in contact with each other, so that the electrode plate 41 of the electrode unit 4 is connected to the power connection strip 5. It is electrically connected to the conductive strip 51. The electrode plate 41 and the bus bar 2 are made of different metal materials. In the first embodiment, the material of the electrode portion of the battery 201 of the battery group 20 is aluminum, the bus bar 2 is an aluminum plate, and the bus bar 2 is Although it can be easily welded to the electrode portion of the battery 201, for example, the bus bar 2 may have a multi-layered aluminum structure. The electrode plate 41 that is wrap-joined to the bus bar 2 is made of a solid copper material and increases the conductivity of the electrode plate 41. In addition, the electrode plate 41 made of copper may have desirable heat conduction performance, thereby further reducing the accumulation of heat. The conductive strip 51 includes a conductive portion 511 for allowing the conductive block 521 to be lab-joined, and an insulating outer layer 512 covering an outside of the conductive portion 511, and the conductive portion 511 ) Is made of multi-layered copper, and the conductive strip 51 can be more easily bent through the conductive part 511 made of multi-layered copper, and the conductive block 521 of the power connection head 52 is hollow. As a cold copper material, it increases conductivity and reduces heat accumulation. Through this, welding performance of each member may be improved, conductivity may be increased, and heat accumulation may be reduced. However, in other modified implementation methods, the bus bar 2, the electrode plate 41, the conductive portion 511 of the conductive strip 51, and the conductive block 521 of the power connection head 52 may be made of other metal materials. And, it should not be limited to this first embodiment.

The second alignment structure 527 of the power connection head 52 includes four alignment blocks 527a, and the second fastening structure 528 includes four fastening plates each having fastening recesses 528b. (528a). The alignment blocks 527a and the fastening plates 528a are alternately installed around the outer periphery of the insertion coupling part 526 in order. The first alignment structure 424 of the power connection sheet 42 includes a plurality of alignment holes 424a for correspondingly accommodating the alignment blocks 527a, respectively, and the first fastening structure 425 includes the It includes a plurality of fastening blocks 425a for fastening corresponding to the fastening recesses 528b of the fastening plates 528a. The fastening member 525 includes an insulating head part 525a having a limited position between the conductive block 521 and the upper housing 523, an insulating tail part 525b opposite to the insulating head part 525a, And an external threaded portion 525c positioned between the insulation head portion 525a and the insulation tail portion 525b. In the first embodiment, the insulation head portion 525a and the insulation tail portion ( 525b is formed on the fastening member 525 by injection-coating molding of an insulating material. The upper housing 523 has an opening 523a exposing the insulating head part 525a, and the casing tube 422 is engaged with the external threaded part 525c of the fastening member 525 to be locked. An internal threaded hole 422a, an outer ring surface 422b having a narrow upper and wide taper at an outer side, a lower flange 422c having a relatively wide width while being located at the bottom, and the lower flange 422c It has a plurality of latches (422d) adjacent to. Not only is it easy to push the casing tube 422 into the first conductive ring 421 from below through the outer ring surface 422b, but also is forcibly fitted with the inner wall surface of the first conductive ring 421 (Tight fit) may be generated, and the lower flange 422c may be supported under the first conductive ring 421, and the latches 422d may be formed on the inner wall surface of the first conductive ring 421. Since it can be fitted to be interfering downward, the fixing force between the casing tube 422 and the first conductive ring 421 is increased. The power connection sheet 42 is covered in the upper opening of the casing tube 422 and further includes an insulating protective ring 426 that is an insulating material, the insulating head part 525a, the insulating tail part 525b, and Through the insulating protection ring 426, it is possible to prevent an electric shock while the user engages the power connection head 52 with the power connection sheet 42. Through the fastening structure, alignment structure, and fastening member 525 and the casing tube 422 installed between the power connection head 52 and the power connection sheet 42, the power connection head 52 and the power connection sheet 42 ) Can be fastened and matched to ensure alignment. In addition, the power unit 4 further includes a protective cover 44 that is covered and installed on the power connection sheet 42, and the protective cover 44 is a cover body for covering the power connection sheet 42 441, and a second fastening structure 442 formed extending from the cover body 441 and having substantially the same structure as the second fastening structure 528 of the power connection head 52, and the protective cover ( By fastening the second fastening structure 442 of 44) to the first fastening structure 425, the protective cover 44 can be covered and installed on the power connection sheet 42, through which the power connection sheet When 42 is not engaged with the power connection head 52, a protective cover 44 may be covered to protect it. In addition, referring to FIGS. 1 and 12 in combination, in the first embodiment, each power connection strip 5 includes a plurality of protective pads 53 formed on the insulating outer layer 512, and the protective pads. Further provided with a plurality of fixing members 54 installed on 53 to enhance the fixing of the conductive strip 51, each fixing member 54 is a tie portion (tie) installed on the protective pad (53). ) 541, and a fixing part 542 to be inserted or installed in the frame of the housing body, and the conductive strip 51 of the power connection strip 5 is appropriately provided through the fixing members 54. By fixing in position, it is possible to prevent the conductive strip 51 of the power connection strip 5 from being caught and pulled by other objects.

Returning to Figs. 1 to 3, a plurality of alignment protrusion blocks 18 and a plurality of fastening protrusion blocks 19 located at both edges of the width direction D2 are further formed on the loading tray 1 do. In this first embodiment, two alignment protrusion blocks 18 are installed on each side, and the alignment protrusion blocks 18 are aligned with the edges of the battery group 20 in an inverted L-shape, and both edges The alignment blocks 18 located at are intersected with each other by two in the width direction D2. The upper cover 6 is installed above the loading tray 1, and a plurality of alignment grooves 61 for passing through the alignment protrusion block 18 correspondingly to the upper cover 6, and the fastening A plurality of fastening holes 62 for correspondingly fastening the protruding block 19, two connection sheet openings 63 corresponding to the power connection sheet 42, respectively, and corresponding to the electrical connector 7 A connector opening 64 is formed. Through the matching of the alignment protrusion blocks 18 and the alignment grooves 61 intersecting each other in the width direction D2, the user installs the upper cover 6 on the loading tray 1 in the wrong direction. Can be prevented.

13 to 16, the difference between the battery connection module 100 ′ of the second embodiment proposed by the present invention and the battery connection module 100 of the first embodiment is, It includes two battery groups, which are a first battery group 202 and a second battery group 203 arranged in parallel, and the battery 201 of the first battery group 202 and the second battery group 203 The quantity is said to be 18 each. The bus bars 2 are generally divided into 4 rows along the width direction D2, of which two rows are for electrically connecting the first battery group 202, and the other two rows are the second battery group. It is to electrically connect (203). The number of flexible circuit boards (3) is two, of which two rows of bus bars (2) are electrically connected to the first battery group (202) and those electrically connected to the second battery group (203). It corresponds to the other two rows of bus bars (2). The battery connection module 100 ′ further includes two straddle-type bus bars 9 assembled to the loading tray 1 ′, and a holding member 10 for two bridge connection sections. The two straddle-type busbars 9 are assembled to the loading tray 1', and each straddle-type busbar 9 electrically connects the first battery group 202 to each other. A first busbar section 91, a second busbar section 92 for electrically connecting the second battery group 203, and the first busbar section 91 and the second busbar section ( A bridge connection section 93 connected to 92) is provided. The bridge connection section 93 is folded in a reduced width to form a multilayer structure, so that the width is reduced to facilitate assembly and at the same time, can handle a large current, and the bridge connection section 93 is the second implementation. In the example, it may have a three-layer structure, but may be a multi-layered structure having other layers, but is not limited thereto. In addition, the first busbar section 91, the second busbar section 92, and the bridge connection section 93 are formed in an integrated structure in the second embodiment, and the straddle bus having an integral structure By directly connecting the two battery groups (the first battery group 202 and the second battery group 203) through the bar 9, the two battery groups (the first battery group 202 and the first battery group 202) are connected directly. 2 A welding point or a tangential contact formed to connect the battery groups 203 in series may be omitted. An accommodation part 110 located at one end of the longitudinal direction D1 is installed in the loading tray 1 ′, and the accommodation part 110 includes a first step part 1101 and a second step part located at different heights. A step portion 1102 is provided to support and accommodate a bridge connection section 93 in which the two straddle busbars 9 are partially alternately overlapped vertically. Each of the holding members 10 for the bridge connection section pressurizes the edge of the bridge connection section 93, and each of the holding members 10 for the bridge connection section directly presses the bridge connection section 93. The holding end 101 for holding the bridge connection section 93 of the corresponding straddle type busbar 9 to the loading tray 1', and one of the end plates adjacent by welding, for example ( It has a fixed end portion 102 for fixing to 301. The receiving portion 110 is further provided with three retaining pillars 1103 that are installed through the bridge connection section 93 and the retaining end 101 of the retaining member 10 for the bridge connection section, After the bridge connection section 93 of the lifted busbar 9 and the holding member 10 for the bridge connection section are assembled, the ends of the holding pillars 1103 are enlarged through a hot-melting method. Si) can be formed, through which the bridge connection section 93 of the straddle-type busbar 9 and the holding member 10 for the bridge connection section can be fixed. In addition, referring to FIGS. 17 and 18 in combination, in the second embodiment, the insulating layer 94 on the surface of the bridge connection section 93 in which the two straddle-type busbars 9 are overlapped with each other. ) Is covered, and an insulating layer 103 is covered and installed on the surface of the holding end 101 of the holding member 10 for the bridge connection section. In the drawings, the insulating layer 94 and the insulating layer 103 at the portions marked in black color may be made of plastic or resin, and may be formed through spray plating, coating, or coating molding.

19 and 20, the receiving groove 17' is formed at the other end of the stacking tray 1'opposite to the portion where the receiving portion 110 is formed in the longitudinal direction D1. It is arranged along the width direction D2. Two insertion frames 173 are installed in each receiving groove 17 ′, and an opening 411 through which the corresponding insertion frame 173 passes is formed in each electrode plate 41 ′. The holding end 431 of the holding member 43 ′ for the electrode plate is inserted and installed to correspond to the insertion frame 173 and is directly overlapped on the upper surface of the corresponding electrode plate 41 ′. An insulating layer 412 and an insulating layer 433 are respectively provided on the surface of a portion where the holding end 431 of the holding member 43 ′ for the electrode plate and the electrode plate 41 ′ are overlapped with each other. In the drawing, the insulating layer 412 and the insulating layer 433 in the areas marked in black may be formed of, for example, plastic or resin, and may be formed through spray plating, coating, or coating molding. In addition, the insulating layer 412 and the insulating layer 433 may be an insulating sleeve assembled by a sleeving method, but are not limited thereto. In the second embodiment, a fastening hook 174 for fastening a corresponding electrode plate 41 ′ is further provided in each receiving groove 17 ′ in order to reinforce the fixing force with respect to the electrode plate 41 ′.

Referring to FIG. 21, the power connection strip 5'of the second embodiment is different from the power connection strip 5 of the first embodiment. It is said that 525a and the insulating tail part 525b are installed on the fastening member 525 in an assembling method, which may be formed in a coating molding method as in the first embodiment. The conductive part 511 is made of a solid copper material, and a cross section of a portion of the conductive part 511 covered by the insulating outer layer 512 is circular.

22 to 25, as a point to be described, in a modified embodiment, the electrode plate 41 ′ and the first conductive ring 421 are assembled in a form, and in the modified embodiment, each An installation hole 413 is formed in the electrode plate 41 ′ so that the first conductive ring 421 of the corresponding power connection sheet 42 is penetrated to correspond to the installation hole 413. Through this, the electrode plate 41 ′ can be assembled in two forms with the first conductive ring 421 in a way that the front or the opposite side faces upward, respectively (see FIG. 25) so as to meet the demands of different space arrangements. I can.

Referring to FIGS. 26 and 27, as a kind of power supply device 200 configured by mounting a plurality of the first and second embodiments as described above and a battery group thereof in one housing body, power supply in the drawing Only the lower sheet 200a that can be included in the housing body of the device is shown, and the first embodiment and the first embodiment are shown through the battery connection module 100 and 100 ′ and the power connection strips 5 and 5 ′ thereof. By connecting the battery groups of the second embodiment in series, the power supply device 200 can provide a large current that meets the requirements. As a point to be explained, the arrangement of the battery connection modules 100 and 100' and the battery group and the installation method of the power connection strips 5 and 5'are only examples, and these can all be adjusted according to need. have. In addition, referring to FIG. 1 in combination, the end plate 301 is both ends of the battery storage housing 30, and in a modified embodiment, the end plate 301 may be installed alone at both ends of the battery group. , It may not be a part of the battery storage housing 30. In another variation, the end plate 301 may be, for example, a diaphragm of the lower sheet 200a, and for example, a plurality of diaphragms may be installed on the lower sheet 200a to configure a space in which a battery group is installed. In addition, the diaphragm located at the end of the battery group may serve as an end plate described in this disclosure.

In conclusion, the battery connection module 100 of the present invention directly connects two battery groups (the first battery group 202 and the second battery group 203) through the straddle-type bus bar 9 of an integrated structure. By connecting, a welding point or a contact point configured to connect in series between two battery groups (the first battery group 202 and the second battery group 203) in the prior art is omitted. The bridge connection section 93 is folded in a form in which the width is reduced in the width direction D2 to form a multilayer structure, so that the width is reduced and thus it is advantageous to assemble and can handle a large current. In addition, the temperature sensor 33 electrically connected to the circuit trace line of the flexible circuit board 3 is directly fixed to the extension arm 32 of the flexible circuit board 3, and the recess 231 of the bus bar 2 Through the method of direct corresponding installation in the interior, not only is assembly simple and easy, but also temperature detection is more direct. In addition, the electrode plate holding members 43 and 43' provide the electrode plates 41 and 41' with a greater force strength (torsion force or other direction force), so that the electrode plate 41 , (41') to prevent movement or vibration. In addition, through the fastening structure, alignment structure, and fastening member 525 and the casing tube 422 installed between the power connection head 52 and the power connection sheet 42, the power connection head 52 and the power connection sheet (42) can be mated together so that the position can be quickly matched. In addition, by wrap-joining the electrode plates 41 and 41 ′ to the bus bar 2 made of a different metal material, the welding performance of each component is improved, the conductivity is increased, and the accumulation of heat may be reduced.

The above are only examples of the present invention, and thus the scope of the present invention cannot be limited, and simple equivalent changes and formulas performed according to the claims of the present invention and the contents of the patent specification all fall within the scope of the patent of the present invention. .

1: Stacking tray 1': Stacking tray
2: Busbar 3: Flexible circuit board
4: electrode unit 5: power connection strip
5': power connection strip 6: top cover
7: electrical connector 8: backplate
9: Straddle-type bus bar 10: Retaining member for bridge connection section
11: Lower position limit strip 12: Upper position limit block
13: upper position limit hook 14: positioning pillar
15: storage recess 16: mounting sheet
17: receiving groove 17': receiving groove
18: alignment protrusion block 19: fastening protrusion block
20: battery group 21: electrode connection
22: arcuate shock absorber 23: extended protruding plate
24: wrap joint part 30: battery storage housing
31: main body 32: extension arm
33: temperature sensor 34: attachment plate
35: voltage collection plate 41: electrode plate
41': electrode plate 42: power connection sheet
43: holding member for electrode plate 43': holding member for electrode plate
44: protective cover 51: conductive strip
52: power connection head 53: protective pad
54: fixing member 61: alignment groove
62: fastening hole 63: connection sheet opening
64: connector opening 70: fastening groove
71: pin 72: protective cover
91: first bus bar section 92: second bus bar section
93: bridge connection section 94: insulating layer
100: battery connection module 100': battery connection module
101: holding end 102: fixed end
103: insulating layer 110: accommodating portion
161: fastening hook 171: retaining block
171a: insertion groove 172: position limit groove
173: insertion frame 174: fastening hook
200: power supply 200a: lower sheet
201: battery 202: first battery group
203: second battery group 231: recess
301: end plate 302: protection frame
311: positioning hole 312: refraction buffer unit
313: upward bend 410: insertion protrusion
411: opening 412: insulating layer
413: installation hole 421: first conductive ring
422: casing tube 422a: internal threaded hole
422b: outer ring surface 422c: lower flange
422d: latch 423: housing
424: first alignment structure 424a: alignment hole
425: first fastening structure 425a: fastening block
426: insulating protective ring 431: holding end
432: fixed end 433: insulating layer
441: cover body 442: second fastening structure
511: conductive part 512: insulating outer layer
521: conductive block 521a: through hole
522: second conductive ring 523: upper housing
523a: opening 523b: fastening hole
524: lower housing 524a: fastening block
525: tightening member 525a: insulating head portion
525b: insulating tail portion 525c: external threaded portion
526: insertion coupling portion 527: second alignment structure
527a: alignment block 528: second fastening structure
528a: fastening plate 528b: fastening recess
541: tie part 542: fixed part
1101: first stepped portion 1102: second stepped portion
1103: retaining column D1: longitudinal direction
D2: width direction D3: vertical direction

Claims (30)

A battery connection module for connecting a first battery group and a second battery group arranged in parallel with each other, and the battery connection module includes a loading tray, a plurality of bus bars, and two straddle-type bus bars,
The plurality of busbars are assembled to the loading tray, some of which are applied to electrically connect the first battery group, and another part of which is applied to electrically connect the second battery group,
The two straddle busbars are assembled on the loading tray, a first busbar section for electrically connecting the first battery group, and a second busbar for electrically connecting the second battery group A section, and two straddle-type busbars having a bridge connection section connected to the first busbar section and the second busbar section,
Each bridge connection section is folded to reduce the width to form a multi-layered battery connection module. The method of claim 1,
A battery connection module in which the first busbar section, the second busbar section, and the bridge connection section of each straddle-type busbar are formed in an integrated structure. delete A battery connection module for connecting a first battery group and a second battery group arranged in parallel with each other, and the battery connection module includes a loading tray, a plurality of bus bars, and two straddle-type bus bars,
The plurality of busbars are assembled to the loading tray, some of which are applied to electrically connect the first battery group, and another part of which is applied to electrically connect the second battery group,
The two straddle busbars are assembled on the loading tray, a first busbar section for electrically connecting the first battery group, and a second busbar for electrically connecting the second battery group A section, and two straddle-type busbars having a bridge connection section connected to the first busbar section and the second busbar section,
A battery connection module in which a storage unit for accommodating a bridge connection section of the straddle-type busbar that is vertically overlapped on the loading tray is installed. The method of claim 4,
It further comprises a holding member for the bridge connection section, the holding member for the bridge connection section is a holding end for holding the bridge connection section of one of the straddle-type busbars to the loading tray, and for fixing to the end plate Battery connection module having a fixed end. The method of claim 5,
A battery connection module in which a retaining column through which the bridge connection section and the retaining member for the bridge connection section are installed is installed in the receiving part. The method of claim 6,
A battery connection module in which an insulating layer is coated on a surface of a bridge connection section in which the two straddle-type busbars are installed overlapping each other. The method of claim 7,
A battery connection module in which an insulating layer is covered and installed on the surface of the holding end of the holding member for the bridge connection section. The method of claim 8,
The battery connection module is provided with a first step portion and a second step portion positioned at different heights in the receiving portion, and supports and accommodates, respectively, a bridge connection section in which the two straddle busbars are partially alternately overlapped with each other. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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