KR20200083192A - A battery connection module - Google Patents

Abstract

A battery connection module includes a plurality of busbars, two straddle type busbars, a flexible circuit board, an electrode unit, and a power connection strip. Each of the straddle type busbars has a first busbar section for electrically connecting a first battery group, a second busbar section for electrically connecting a second battery group, and a bridge connection section for the connection between the first busbar section and the second busbar section. The flexible circuit board includes an extension arm and a temperature sensor arranged on the extension arm. The busbar is formed with a recess for correspondingly accommodating the temperature sensor. The electrode unit includes an electrode plate for a lap joint to the busbar, an electrode plate holder for holding the electrode plate, and a power connection sheet installed in the electrode plate. The power connection strip has a power connection head which matches the power connection sheet with a 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 battery group in a modular manner.

US 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.

China Utility Model Safety Publication No. CN206806468U discloses 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.

China Utility Model Safety Publication No. CN206742321U (corresponding Chinese Invention Patent Publication No. CN107046114A) disclosed that the bus bar is fixed to the slate of the battery module end through the adapter base sheet. Since the busbar and the narrow plate at the end of the battery module are connected through a separate adapter base sheet, the three parts must have a structure to be fitted and assembled with each other, so the structure is relatively complicated 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 portion of the connector is similar to the present invention, but between the connectors Further innovation is required to improve the mating so that the position is responsive quickly, and 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 that can improve at least one of the disadvantages of the prior art.

Accordingly, 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 in some embodiments, wherein the battery connection module includes a loading tray, a plurality of busbars, and two switches. Includes a tradle type busbar. The busbar is assembled to the loading tray, 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 to the loading tray, and each straddle-type busbar electrically connects the first battery bar section and the second battery group for electrically connecting the first battery group. It has a second bus bar section for connecting, and a bridge connection section connected to the first bus bar section and the second bus bar section.

In some embodiments, the first busbar section, the second busbar section and the bridge connection section of each straddle-type busbar are formed in an integral structure.

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

In some embodiments, a storage unit for receiving a bridge connection section of the straddle type bus bar that is vertically overlapped and installed on the loading tray is installed.

In some embodiments, further comprising a holding member for the bridge connecting section, wherein the holding member for the bridge connecting section holds the bridge connecting section of one of the straddle-type bus bars in the loading tray, and the end. It has a fixed end for fixing to the plate.

In some embodiments, a retaining column is installed through the bridge connecting section and the holding member for the bridge connecting section.

In some embodiments, an insulating layer is coated on the surface of the bridge connecting section in which the two straddle-type busbars overlap each other.

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

In some embodiments, the storage unit is provided with a first step portion and a second step portion, which are located at different heights, and supports and accommodates the bridge connecting sections in which the two straddle-type bus bars are partially overlapped with each other. do.

Thus, the battery connection module of the present invention, in some embodiments, includes a loading tray, multiple bus bars, and a flexible circuit board. The bus bars are assembled to the loading tray, and the flexible circuit board is 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 installed on the extension arm It includes a temperature sensor that is electrically connected to the trace line, a recess is formed in which the temperature sensor is accommodated in the bus bar.

In some embodiments, the flexible circuit board further includes an attachment plate attached to the extension arm and the busbar to secure the extension arm to the busbar.

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

In some embodiments, a thermally conductive filler covering the temperature sensor is filled in the recess of the busbar.

In some embodiments, the bus bar has an extended protruding plate extending in a corresponding extending arm direction, and the recess is formed in the extending protruding plate.

Thus, the battery connection module of the present invention, in some embodiments, includes a loading tray, multiple bus bars, and electrode units. Receiving grooves are formed in the loading tray, the bus bars are assembled to the loading tray, the electrode unit is wrap-joined to one of the bus bars, and the electrode unit is for electrode plates, power connection sheets, and electrode plates. It includes a retaining member, the electrode plate is installed in the receiving groove of the stacking tray and wrap-joined to a corresponding bus bar, the power connection sheet is installed on the electrode plate, the retaining member for the electrode plate is the electrode plate It has a holding end to be held in 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 superimposed on the upper surface of the electrode plate.

In some embodiments, an insulating layer is provided on a surface of a portion where the holding end of the holding member for the electrode plate and the electrode plate are 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 to correspond to the insertion frame.

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

In some embodiments, a fastening hook for fastening the electrode plate to the receiving groove is installed.

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 the end of the electrode plate is correspondingly received is formed below the holding block, and an insertion groove in which the holding end of the holding member for the electrode plate is correspondingly received is formed in the holding block.

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

Accordingly, the battery connection module of the present invention, in some embodiments, includes a loading tray, multiple busbars, electrode units, and power connection strips. The bus bars are assembled to the loading tray, and the electrode unit is lap-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. A first conductive ring that is wrap-joined to a corresponding bus bar, and the electrode plate and the bus bar are made of different metals, the power connection sheet is installed on the electrode plate, and the power connection sheet is installed on an electrode plate. It is installed on an electrode plate and has a casing tube (套管) passing through the first conductive ring, and a housing installed on the electrode plate and located on an outer circumference of the first conductive ring, the first alignment ( Iii) A structure and a first fastening structure are formed. The power connection strip includes a conductive strip, and a power connection head installed at the end of the conductive strip and coupled to the power connection sheet, wherein the power connection head is wrap-joined at the end of the conductive strip and a conductive block is formed through hole , 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 received together in the second conductive ring, and through the through hole and the second conductive ring of the conductive block It is installed and includes a fastening member that is movably positioned between the conductive block and the upper housing, and is inserted into the lower housing to be positioned around the outer periphery of the second conductive ring, corresponding to the first alignment structure. A second alignment structure to be matched and a second fastening structure to be matched with the first fastening structure are formed, wherein, after the power connection head and the power connection sheet are combined, the insertion connection part is inserted into the housing And, 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 embodiments, 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 into the connection part. It is alternately installed on the outer periphery of the, the first alignment structure of the power connection sheet each includes a plurality of alignment holes correspondingly receiving the alignment block, the first fastening structure is a plurality of fastening each corresponding to the fastening plate It includes a fastening block.

In some embodiments, the fastening member is positioned between the conductive block and the upper housing, an insulating head portion, an insulating tail portion opposite to the insulating head portion, and between the insulating head portion and the insulating tail portion The outer housing has an outer threaded portion, the upper housing has an opening exposing the insulating head portion, and the casing tube has an inner threaded hole that is mated and locked with the outer threaded portion of the fastening member, and the power connection sheet. Is further provided with an insulating protective ring covering the upper opening of the casing tube.

In some embodiments, an installation hole is formed in the electrode plate, a first conductive ring of the power connection sheet is installed through the installation hole, and the casing tube is installed through the first conductive ring.

In some embodiments, the first conductive ring and the electrode plate of the power connection sheet are formed in an integral structure, and the casing tube is installed throughly corresponding to the first conductive ring.

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

In some embodiments, the bus bars 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 an integral structure of a straddle-type busbar, thereby omitting a welding point or a tangential contact point configured to connect the two battery groups in series in the prior art. . The bridge connecting 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, which is advantageous for assembling and at the same time, it can handle a large current. In addition, through a method of directly fixing the temperature sensor electrically connected to the circuit trace line of the flexible circuit board to the extension arm of the flexible circuit board and directly installing it in the concave portion of the bus bar, assembly is simple and easy, as well as temperature. Detection is more direct. In addition, the holding member for the electrode plate provides greater force strength (torsional force or other direction of force) to the electrode plate, thereby preventing 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 engaged to match their positions. In addition, by wrapping the electrode plate on a bus bar made of a different metal, welding performance of each component is improved, conductivity is increased, and heat accumulation may be reduced.

Other features and technical effects of the present invention will be apparent 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 the 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 an exploded perspective view of FIG. 2.
4 is a local three-dimensional exploded view for explaining the temperature sensor of the flexible circuit board and the concave portion of the bus bar of the first embodiment.
Fig. 5 is a local three-dimensional view for explaining the receiving groove and the electrode unit of the loading tray of the first embodiment.
6 is an aerial view of the first embodiment, and the upper cover of the first embodiment is omitted in the figure.
7 is a cross-sectional view of FIG. 6 taken along line VII-VII.
8 is a three-dimensional view illustrating a power connection sheet of the power connection head and the electrode unit of the power connection strip of the first embodiment.
9 is an exploded perspective view of FIG. 8.
10 is an aerial view for explaining that 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 of FIG. 10 taken along line XI-XI.
Fig. 12 is a local three-dimensional exploded view illustrating a protective pad and a fixing member of the power connection strip of 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.
Fig. 15 is a three-dimensional local view illustrating that the bridge connection portion of the straddle type bus bar of the second embodiment is installed in the storage portion of the loading tray.
FIG. 16 is a local three-dimensional exploded view of FIG. 15.
17 is a three-dimensional view for explaining the straddle type bus bar 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 for explaining the electrode unit of the second embodiment.
20 is a more detailed local stereoscopic exploded view based on FIG. 19.
21 is a three-dimensional exploded view for explaining the power connection strip of the second embodiment.
22 is a three-dimensional exploded view illustrating an electrode unit in a modified embodiment.
23 is a bird's-eye view illustrating an electrode unit in the above-described modified embodiment.
24 is a cross-sectional view taken along line XXIV-XXIV in FIG. 23.
25 is a three-dimensional view for explaining the electrode plate of the electrode unit of the modified embodiment.
26 is a three-dimensional view for explaining the first and second embodiments as described above and a type of power supply device configured by mounting the battery group on the lower seat.
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 components 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 housed in a battery housing 30 with a protective frame 302 installed at two ends, and the battery housing 30 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, is installed in the battery group 20, and is made of an insulating material. The bus bars 2 are divided into two rows in the width direction D2 perpendicular to the length direction D1 and assembled to the loading tray 1, and electrically connect the batteries 201 of the battery group 20 It is to do. In the first embodiment, the plurality of electrode connections 21 connected to the electrodes of the battery 201 for each bus bar 2, and adjacent electrode connections 21 are connected between the longitudinal direction D1 and A plurality of arched buffer portions 22 are bent in a direction away from the loading tray 1 along the vertical direction D3 perpendicular to the width direction D2, and the arcuate buffer portions 22 are the width A plurality of lower position limit strips 11 extending along the direction D2, the loading tray 1 being supported under the arcuate buffer 22 of the busbar 2, and above the busbar 2 It includes a plurality of upper position limiting blocks 12 and a plurality of upper position limiting fastening hooks 13, lower position limiting strips 11, upper position limiting blocks 12 and upper position limiting fastening hooks 13 Via to limit the position of the bus bar (2) jointly.

Referring to FIG. 4 and FIG. 5 in combination, the flexible circuit board 3 is installed on the stacking tray 1 and is located between the main body 31 and the main body 31 located between two rows of bus bars 2. 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 circuit trace lines of the flexible circuit board 3 (For example, includes an NTC thermistor (Negative Temperature Coefficient thermistor, negative temperature coefficient thermistor).) The bus bar 2 further includes an extended protrusion 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 accommodated is formed on an upper surface of an end portion of the extended protrusion 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 the protruding plate 23, and in another modified embodiment, the concave portion 231 may be in the form of a blind hole. In the first embodiment, the flexible circuit board (3) further includes a plurality of attachment plates 34, the attachment plates 34 may be made of, for example, nickel, and the attachment plates 34 may be extended by, for example, 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 in the concave portion 231, and the thermally conductive filler may be, for example, a thermally conductive adhesive, etc., through the thermally conductive filler. It may help to transfer the thermal energy of the bus bar 2 to the temperature sensor 33. However, the present invention is not limited to this. The temperature sensor 33 electrically connected to the circuit trace line of the flexible circuit board 3 is provided. Fixed directly to the extension arm (32) of the flexible circuit board (3) and the recess of the bus bar (2) By directly corresponding installation in the part 231, the assembly is simple and easy, and the 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, it is possible to strengthen the fixing between the extension arm 32 and the bus bar (2).

In the first embodiment, a plurality of positioning holes 311 and the depression in the vertical direction D3 in the main body 31 of the flexible circuit board 3 along the width direction D2 A plurality of extending buffer portions 312 and an upward bending portion 313 which is bent 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 recesses 15 in which the refractive buffer 312 is accommodated, and a mounting sheet 16 adjacent to the upward bending part 313 are further provided. The positioning column 14 can be fixed to the flexible circuit board 3 through the head portion of the distal end enlarged by hot melting. The battery connection module 100 further includes an electrical connector 7 installed electrically connected to the upwardly refracting 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 A circuit trace of the flexible circuit board 3 is installed through the two fastening grooves 70 that are fastened to the fastening hooks 161 of the seat 16 and through the upwardly refracting portions 313 while being located on the rear side. It has a plurality of pins (71) that are electrically connected to the line. The back plate 8 is fixed to the pin 71 and fitted between the electrical connector 7 and the upwardly refracting part 313, thereby providing a connection between the electrical connector 7 and the upwardly refracting part 313. Strengthens the holding power of. In addition, the flexible circuit board 3 is electrically connected to the main body 31 and is in contact with each of the bus bars 2, thereby collecting a plurality of voltage collection plates 35 for collecting voltage information of the bus bars 2 ). Status information (eg, temperature, voltage, etc.) of the battery group 20 may be collected through the temperature sensor 33 and the voltage collection 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) corresponding to the electrical connector 7 through the electrical connector 7 electrically connected to the substrate 3. The electrical connector 7 further includes a protective cover 72 for protecting the electrical connector 7 when the electrical connector 7 is not mated with the device.

3 and 5 to 7, two receiving grooves 17 located at both ends of the longitudinal direction D1 are further formed on the loading tray 1, and each receiving groove 17 is further formed. A retaining block 171 is installed, and a position limiting groove 172 is formed below the retaining block 171. The two electrode units 4 are wrap-joined to two of the bus bars 2, and each electrode unit 4 is also provided with an electrode plate 41, a power connection sheet 42, and a holding member for the electrode plate (43). The electrode plate 41 is installed in the corresponding receiving groove 17 of the loading tray 1 and is also wrapped in the wrap joint portion 24 formed by the corresponding bus bar 2, and further, the electrode plate ( The insertion protrusion 410 of the protrusion plate structure is formed at the end of the 41, the insertion protrusion 410 is inserted into the position limiting groove 172 below the corresponding holding block 171, the position limiting groove 172 Is accommodated in. The power connection sheet 42 is installed on the electrode plate 41, and the holding member 43 for the electrode plate is mounted on the corresponding holding block 171 to load the corresponding electrode plate 41 onto the loading tray (1). ), and a fixed end 432 that is fixed to the adjacent end plate 301 in a welding manner, for example, and a holding end 431 that is held indirectly. Insertion grooves 171a in which the retaining ends 431 of the retaining member 43 for electrode plates corresponding to the respective retaining blocks 171 are received are formed, and the retaining ends of the retaining members 43 for each electrode plate ( 431) A plurality of interference protrusion blocks are formed on both edges to interfere with the insertion groove 171a, thereby strengthening the fixing support between the electrode plate holding member 43 and the insertion groove 171a, and holding the electrode plate holding member (43) provides greater force strength (torsional force or other direction of 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. , Casing tube 422 installed on the electrode plate 41 and penetrating the first conductive ring 421, and installed on the electrode plate 41 and positioned on the outer periphery of the first conductive ring 421 The housing 423 is provided. In the first embodiment, the first conductive ring 421 and the electrode plate 41 are formed in an integral structure, but may be a combination of other two-piece types, but are not limited thereto. The casing tube 422 penetrates the electrode plate 41 and is installed 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 to match the power connection sheet 42. Each power connection head 52 is a conductive block 521 in which a through hole 521a is formed while being wrapped at the end of the conductive strip 51, and the conductive block 521 corresponding to the through hole 521a The second conductive ring 522 installed on the upper housing 523 and the lower housing 524 that are assembled with each other to receive the second conductive ring 522 and the conductive block 521 together, and the conductive block ( 521 includes a fastening member 525 that is installed through the through hole 521a and the second conductive ring 522 so that the position is movably restricted 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 integral 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. In addition, in the first embodiment, the upper housing 523 is formed with a plurality of fastening holes 523b at side portions, and A plurality of fastening blocks 524a corresponding to the fastening holes 523b are formed in the lower housing 524, through which the upper housing 523 and the lower housing 524 are fastened to each other and assembled with each other. An insertion coupling portion 526 positioned on the outer circumference of the second conductive ring 522 in the lower housing 524, a second alignment structure 527 corresponding to the first alignment structure 424, and the The second fastening structure 528 corresponding to the first fastening structure 425 is integrally formed. Among them, after the power connection head 52 is combined with the power connection sheet 42, the insertion coupling portion 526 is inserted into the housing 423, and the fastening member 525 is the casing tube Assembled and connected to 422, the first conductive ring 421 and the second conductive ring 522 are brought into 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 the battery group 20 of the battery group 20. Although it can be easily welded to the electrode portion of the battery 201, for example, the bus bar 2 may also have a multilayer aluminum structure. The electrode plate 41, which is wrap-joined to the bus bar 2, is a solid copper material and increases the conductivity of the electrode plate 41. In addition, the electrode plate 41 made of copper has desirable heat conduction performance, thereby further reducing heat accumulation. The conductive strip 51 includes a conductive portion 511 for allowing the conductive block 521 to be lap-joined, and an insulating outer layer 512 covering the outside of the conductive portion 511, and the conductive portion 511 ) Is made of multi-layer copper, and the conductive strip 51 can be more easily refracted through the conductive part 511 made of multi-layer copper, and the conductive block 521 of the power connection head 52 is deceived. As a cold copper material, it increases conductivity and lowers heat accumulation. Through this, the welding performance of each member is improved, conductivity is increased, and heat accumulation may be reduced. However, in other modified embodiments, 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 other metal materials. And should not be limited to the first embodiment.

The second alignment structure 527 of the power connection head 52 includes four alignment blocks 527a, and the second fastening structure 528 has four fastening plates each having a fastening recess 528b. 528a. The alignment blocks 527a and the fastening plates 528a are alternately installed on the outer circumference of the insertion coupling portion 526 in this order. The first alignment structure 424 of the power connection sheet 42 includes a plurality of alignment holes 424a for receiving the alignment blocks 527a, respectively, and the first fastening structures 425 are respectively 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 is an insulating head portion 525a having a limited position between the conductive block 521 and the upper housing 523, an insulating tail portion 525b opposite to the insulating head portion 525a, And an external thread portion 525c positioned between the insulating head portion 525a and the insulating tail portion 525b. In the first embodiment, the insulating head portion 525a and the insulating 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 portion 525a, and the casing tube 422 is mated with an external threaded portion 525c of the fastening member 525 to lock it. The inner threaded hole 422a, the outer ring surface 422b having a narrow taper at the top and a wide taper at the outside, a lower flange 422c at the bottom and a relatively wide width, 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 from the bottom into the first conductive ring 421 through the outer ring surface 422b, but also fits with the inner wall surface of the first conductive ring 421 (tight fit), the lower flange 422c may be supported under the first conductive ring 421, and the latches 422d may have inner wall surfaces of the first conductive ring 421 Since it can be interposed so as to be interfering downward, the fixing action force between the casing tube 422 and the first conductive ring 421 is increased. The power connection sheet 42 is covered with an upper opening of the casing tube 422 and further includes an insulating protective ring 426 made of an insulating material, and the insulating head portion 525a and the insulating tail portion 525b. The insulation protection ring 426 may prevent a user from electric shock in the process of engaging the power connection head 52 with the power connection sheet 42. The power connection head 52 and the power connection sheet 42 through a fastening structure, an alignment structure, and a fastening member 525 and a casing tube 422 installed between the power connection head 52 and the power connection sheet 42. ) Can be fitted so that the position is aligned quickly. In addition, the power unit 4 further includes a protective cover 44 that is coated 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 is formed extending from the cover body 441 and having a second fastening structure 442 having a structure substantially the same as the second fastening structure 528 of the power connection head 52, the protective cover ( By fastening the second fastening structure 442 of 44) to the first fastening structure 425, the protective cover 44 may be coated and installed on the power connection sheet 42, through which the power connection sheet 42 may be protected by a protective cover 44 when not in engagement with the power connection head 52. In addition, referring to FIG. 1 and FIG. 12 in combination, in the first embodiment, each power connection strip 5 is provided with a plurality of protection pads 53 formed on the outer insulating layer 512, and the protection pads It is further provided with a plurality of fixing members 54 to be installed on (53) to strengthen the fixing of the conductive strip (51), each fixing member 54 is a tie (tie) installed on the protective pad (53) ) (541), and provided with a fixing portion 542 to be installed or fitted into the frame of the housing body, the conductive strip 51 of the power connection strip 5 through the fixing member 54 suitable By fixing it in position, it is possible to prevent the conductive strip 51 of the power connection strip 5 from being caught by other objects.

Referring back 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 in the loading tray 1. do. In this first embodiment, two alignment protruding blocks 18 are installed on each side, and the alignment protruding blocks 18 are arranged in an inverted L-shape, respectively, at the edges of the battery group 20, and also at both sides. The alignment blocks 18 located at are intersected with each other in the width direction D2. The upper cover 6 is installed above the loading tray 1, and the plurality of alignment grooves 61 for the alignment protrusion block 18 to pass through the upper cover 6, and the fastening A plurality of fastening holes 62 for fastening of the protruding block 19 correspondingly, two connection sheet openings 63 corresponding to the power connection sheet 42, respectively, and corresponding to the electrical connector 7 The connector opening 64 is formed. Through registration of the alignment protrusion block 18 and the alignment groove 61 that cross each other in the width direction D2, the user installs the upper cover 6 in the wrong direction in the loading tray 1. 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 different from that of the second embodiment. It has two battery groups, the first battery group 202 and the second battery group 203 arranged in parallel, and the first battery group 202 and the second battery group 203 of the battery 201 The quantity is said to be 18 each. The busbars 2 are generally divided into four rows along the width direction D2, two of which are for electrically connecting the first battery group 202, and the other two rows of the second battery group. It is intended to electrically connect 203. The number of flexible circuit boards 3 is two, each of which is electrically connected to the first battery group 202, two of which are electrically connected to the bus bar 2 of the second row and the second battery group 203. 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 two retaining members 10 for bridge connection sections. The two straddle-type busbars 9 are assembled to the loading tray 1', and each straddle-type busbar 9 is for electrically connecting the first battery group 202. 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 ( 92) is provided with a bridge connection section 93 that is connected to. The bridge connecting section 93 is folded in a form in which the width is reduced to form a multi-layer structure, so that the width is reduced and assembly is advantageous, and a large current can be handled, and the bridge connecting section 93 is the second embodiment. In the example, it may be a three-layer structure, or a multi-layer structure of other layers, but is not limited thereto. In addition, the first bus bar section 91, the second bus bar section 92 and the bridge connection section 93 are formed in an integral structure in the second embodiment, and a straddle type bus having an integral structure By connecting two battery groups (first battery group 202 and second battery group 203) directly through the bar 9, two battery groups (first battery group 202 and second battery group) are formed in the prior art. It is possible to omit the welding point or the contact for tangential formed to connect the two battery groups 203 in series. The storage tray 1 ′ is provided with a receiving portion 110 positioned at one end in the longitudinal direction D1, and the receiving portion 110 has a first step portion 1101 and a second step portion located at different heights. The stepped portion 1102 is provided, and supports and accommodates the bridge connecting section 93 in which the two straddle-type bus bars 9 are partially overlapped vertically. The holding member 10 for the bridge connecting section presses the edge portion of the bridge connecting section 93, respectively, and the holding member 10 for each bridge connecting section presses the bridge connecting section 93 directly. A holding end 101 for holding the bridge connecting section 93 of the corresponding straddle-type busbar 9 in the loading tray 1', and one end plate adjacent thereto, for example in a welding manner ( 301) is provided with a fixed end (102) for fixing. Three holding pillars 1103 which are installed through the bridge connecting section 93 and the holding end 101 of the holding member 10 for the bridge connecting section are further installed in the receiving part 110, and the After the bridge connecting section 93 of the field bus bar 9 and the holding member 10 for the bridge connecting section are assembled, the ends of the holding columns 1103 are enlarged head parts (not shown) through a hot-melting method. Hour), through which the bridge connection section 93 of the straddle type bus bar 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 is formed on the surface of the bridge connecting section 93 in which the two straddle-type bus bars 9 are overlapped with each other. ) Is coated, and the insulating layer 103 is coated on the surface of the holding end 101 of the holding member 10 for the bridge connection section. In the drawing, the insulating layer 94 and the insulating layer 103 of a region marked in black may be made of, for example, plastic or resin, and may also be formed through a method such as spray plating, coating or coating molding.

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

Referring to FIG. 21, the difference between the power connection strip 5'in the second embodiment and the power connection strip 5 in the first embodiment is that the insulating head portion of the power connection strip 5'is 525a) and the insulating tail portion 525b are installed on the fastening member 525 in an assembly method, which may be configured by a coating molding method as in the first embodiment. The conductive portion 511 is a solid copper material, and the cross section of the portion covered by the insulating outer layer 512 of the conductive portion 511 is circular.

22 to 25, as a point to be explained, in a modified embodiment, the electrode plate 41' and the first conductive ring 421 are assembled, and in a modified embodiment, each An installation hole 413 is formed in the electrode plate 41 ′, and the first conductive ring 421 of the corresponding power connection sheet 42 is penetrated through the installation hole 413. Through this, the electrode plate 41 ′ may be assembled in two forms with the first conductive ring 421 in such a way that the front or opposite side faces upward (see FIG. 25 ), so as to meet the needs of different spatial arrangements. Can.

26 and 27, a plurality of the first and second embodiments as described above and a battery group thereof is a type of power supply device 200 that is configured by being mounted in one housing body. Only the lower seat 200a that can be included in the housing body of the device is shown, and the first embodiment and the first through the battery connection module 100, 100' and its power connection strips 5, 5' By connecting the battery groups of the second embodiment in series, the power supply device 200 can provide a large current that meets the needs. As a point of explanation, the arrangement of the battery connection modules 100, 100' and the battery group and the installation of the power connection strips 5, 5'are merely examples, and they can all be adjusted as needed. have. In addition, referring to FIG. 1 in combination, the end plate 301 is both ends of the battery housing 30, and in one modified embodiment, the end plate 301 can be installed alone at both ends of the battery group, , It may not be part of the battery housing 30. In another variation, the end plate 301 may be, for example, a plate of the lower sheet 200a, for example, a plurality of plates may be installed on the lower sheet 200a to constitute a space in which the battery group is installed. And a plate located at the end of the battery group can serve as the 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 an integral structure of the straddle-type busbar 9. By connecting, in the prior art, a welding point or a contact point configured for connecting in series between two battery groups (first battery group 202 and second battery group 203) is omitted. The bridge connecting section 93 is folded in a form in which the width is reduced in the width direction D2 to form a multi-layered structure, thereby reducing the width and advantageous for assembling while simultaneously supporting 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 busbar 2 Through the direct installation in the system, the assembly is simple and easy, and the temperature detection is more direct. In addition, the electrode plate 41 is provided by the retaining members 43 and 43' for the electrode plate to provide more strength (torsional force or other direction of force) to the electrode plates 41 and 41'. , Prevent the movement or vibration of the position of '41'. In addition, through the fastening structure, the alignment structure, and the 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 quickly engaged to match the position. In addition, by lapping the electrode plates 41 and 41' to the bus bars 2, which are different metal materials, welding performance of each component is improved, conductivity is increased, and heat accumulation can be reduced.

The above is merely an embodiment of the present invention, and thus the scope of the present invention cannot be limited, and simple equivalent changes and modifications implemented according to the claims and patent specification of the present invention are all within the scope of the present invention. .

1: Stacking tray 1': Stacking tray
2: Bus bar 3: Flexible circuit board
4: Electrode unit 5: Power connection strip
5': power connection strip 6: top cover
7: Electrical connector 8: Back plate
9: Straddle type bus bar 10: Retaining member for bridge connection section
11: Lower positioning strip 12: Upper positioning block
13: Upper position limit hook 14: Positioning column
15: storage recess 16: mounting sheet
17: Receptive home 17': Receptive home
18: Alignment protrusion block 19: Fastening protrusion block
20: battery group 21: electrode connection
22: arched buffer 23: extended protrusion plate
24: wrap joint 30: battery storage housing
31: 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: retaining member for electrode plates 43': retaining member for electrode plates
44: protective cover 51: conductive strip
52: power connection head 53: protection pad
54: fixing member 61: alignment groove
62: fastener 63: connection seat 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: receiving portion
161: fastening hook 171: retaining block
171a: Insertion groove 172: Position restriction groove
173: insertion frame 174: fastening hook
200: power supply 200a: lower seat
201: battery 202: first battery group
203: second battery group 231: recess
301: end plate 302: protective frame
311: positioning hole 312: refractive buffer
313: upward bend 410: insertion protrusion
411: opening 412: insulating layer
413: installation hole 421: first conductive ring
422: casing tube 422a: internal thread
422b: outer ring face 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: retaining end
432: fixed end 433: insulating layer
441: cover body 442: second fastening structure
511: conductive portion 512: insulating outer layer
521: conductive block 521a: through hole
522: second conductive ring 523: upper housing
523a: opening 523b: fastener
524: lower housing 524a: fastening block
525: fastening member 525a: insulating head portion
525b: insulating tail portion 525c: external thread 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 step portion 1102: second step portion
1103: retaining column D1: longitudinal
D2: width direction D3: up and down direction

Claims (30)

A battery connection module for connecting a first battery group and a second battery group arranged in parallel with each other, wherein the battery connection module includes a loading tray, a plurality of bus bars, and two straddle type bus bars,
The plurality of bus bars are assembled to the loading tray, a portion of which is applied to electrically connect the first battery group, the other portion of which is applied to electrically connect the second battery group,
The two straddle-type busbars are assembled to the loading tray, respectively, a first busbar section for electrically connecting the first battery group, and a second busbar for electrically connecting the second battery group A battery connection module including two straddle-type busbars having a section and a bridge connection section connected to the first busbar section and the second busbar section. According to 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 integral structure. According to claim 2,
Each bridge connection section is folded so that the width is reduced battery connection module to form a multi-layer structure. According to claim 3,
A battery connection module in which a storage unit for storing a bridge connection section of the straddle-type busbar that is vertically installed on the loading tray is installed. According to claim 4,
Further comprising a holding member for the bridge connecting section, the holding member for the bridge connecting section for holding the bridge connecting section of one of the straddle-type busbars to the holding 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 pillar is installed through the bridge connecting section and the holding member for the bridge connecting section. The method of claim 6,
A battery connection module in which an insulating layer is coated on the surface of a bridge connecting section in which the two straddle-type bus bars are overlapped with each other. The method of claim 7,
A battery connection module in which an insulating layer is coated on the surface of the holding end of the holding member for the bridge connecting section. The method of claim 8,
A battery connection module that is provided with a first step portion and a second step portion positioned at different heights in the storage portion, and supports and accommodates bridge connection sections in which the two straddle-type bus bars are partially overlapped with each other. In the battery connection module,
Loading tray;
A plurality of bus bars assembled to the loading tray; And
A flexible circuit board including a main body installed on the loading tray, an extension arm extending from the main body toward the bus bar, and a temperature sensor installed on the extension arm and electrically connected to a circuit trace line of the flexible circuit board, ,
A battery connection module in which a recess in which the temperature sensor is accommodated is formed in the bus bar. The method of claim 10,
The flexible circuit board is attached to the extension arm and the bus bar, the battery connection module further comprises an attachment plate for fixing the extension arm to the bus bar. The method of claim 11,
The attachment plate is a battery connection module attached to a surface facing the temperature sensor of the extension arm. The method of claim 12,
A battery connection module that is filled with a thermally conductive filling material covering the temperature sensor in a concave portion of the bus bar. The method according to any one of claims 10 to 13,
The bus bar has an extended protruding plate extending in a direction of a corresponding extending arm, and the recess is a battery connection module formed in the extending protruding plate. In the battery connection module,
A loading tray in which a receiving groove is formed;
A plurality of bus bars assembled to the loading tray; And
It includes an electrode unit that is rap-jointed to one of the bus bar, the electrode unit is installed in the receiving groove of the loading tray, the electrode plate to be rap-jointed to the corresponding bus bar, and the power connection sheet installed on the electrode plate, A battery connection module including a holding member for holding an electrode plate and a holding end for holding the electrode plate and a fixed end for fixing to the end plate. The method of claim 15,
A battery connection module, wherein the holding end of the holding member for the electrode plate is superimposed on the upper surface of the electrode plate. The method of claim 16,
A battery connection module in which an insulating layer is installed on a surface of a portion where the holding end of the holding member for the electrode plate and the electrode plate overlap each other. The method of claim 16 or 17,
Insertion frame is installed in the receiving groove portion, the battery connection module is installed in the holding end of the electrode plate holding member corresponding to the insertion frame. The method of claim 18,
A battery connection module having an opening through which an insertion frame corresponding to the electrode plate passes. The method of claim 19,
A battery connection module in which a fastening hook for fastening the electrode plate to the receiving groove is installed. The method of claim 15,
A battery connection module in which a holding block is installed in the receiving groove, an end of the electrode plate is inserted under a corresponding holding block, and a holding end of the holding member for the electrode plate is assembled to the holding block. The method of claim 21,
A battery connection module in which a position limiting groove in which the end of the electrode plate is correspondingly received is formed under the holding block, and an insertion groove in which a holding end of the holding member for the electrode plate is correspondingly received is formed in the holding block. The method of claim 22,
A battery connection module in which an interference protrusion block interfering with the insertion groove is formed at a side edge of the holding end of the holding member for the electrode plate. In the battery connection module,
Loading tray;
A plurality of bus bars assembled to the loading tray;
As an electrode unit that is lap-joined to one of the bus bars, the electrode unit includes an electrode plate and a power connection sheet, and the electrode plate is installed on the loading tray and rap-joined to a corresponding bus bar. The bus bar is made of a different metal material, 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 electrode plate is installed on the first conductive ring An electrode unit having a casing tube passing therethrough and a housing installed on the electrode plate and positioned on an outer circumference of the first conductive ring, wherein a first alignment structure and a first fastening structure are formed on the housing; And
A conductive strip, and a power connection head installed at the end of the conductive strip and coupled to the power connection sheet, wherein the power connection head wraps at the end of the conductive strip and a conductive block having a through hole formed therein, the through hole Correspondingly, a second conductive ring installed on the conductive block, an upper housing and a lower housing assembled with each other and accommodated in the second conductive ring, and through holes of the conductive block and through the second conductive ring to penetrate the conductive block And a fastening member movably positioned between the upper housing and an insertion coupling portion positioned at the outer periphery of the second conductive ring in the lower housing, the second alignment corresponding to the first alignment structure Structure, and a power connection strip on which a second fastening structure corresponding to the first fastening structure is formed,
Among them, after the power connection head and the power connection sheet are combined, the insertion connection portion 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 A battery connection module that electrically connects the electrode plate and the conductive strip by being in contact with each other. The method of claim 24,
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 blocks and the fastening plates are alternately rotated around the outer circumference of the insertion connection in order. The first alignment structure of the power connection sheet includes a plurality of alignment holes each correspondingly receiving the alignment block, and the first fastening structure each includes a plurality of fastening blocks correspondingly fastened to the fastening plate. Battery connection module. The method of claim 25,
The fastening member includes an insulating head portion having a limited position between the conductive block and the upper housing, an insulating tail portion opposite to the insulating head portion, and an external thread portion positioned between the insulating head portion and the insulating tail portion. And, the upper housing has an opening exposing the insulating head portion, the casing tube is provided with an internal threaded hole that is mated with the outer threaded portion of the fastening member and locked, the power connection sheet of the casing tube A battery connection module further comprising an insulating protective ring covered in the upper opening. The method of claim 24,
A battery connection module in which an installation hole is formed in the electrode plate, a first conductive ring of the power connection sheet is penetrated through the installation hole, and the casing tube is penetrated through the first conductive ring. The method of claim 24,
The first conductive ring of the power connection sheet and the electrode plate are formed in an integral structure, and the battery connection module through which the casing tube is installed correspondingly in the first conductive ring. The method of claim 24,
The conductive strip has a conductive portion made of a multi-layered copper material, and the conductive block of the power connection head is a solid copper material. The method of claim 24,
The bus bar is made of aluminum, and the electrode plate is a battery connection module made of solid copper.

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