CN216085222U

CN216085222U - Inter-module connecting device and battery pack

Info

Publication number: CN216085222U
Application number: CN202122578212.6U
Authority: CN
Inventors: 段有明; 高升; 张巧然; 葛有为
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-03-18
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses an inter-module connecting device and a battery pack, wherein the inter-module connecting device comprises: first plug-in components, second plug-in components and connection copper bar, the one end of connecting the copper bar with first plug-in components are connected, the other end of connecting the copper bar with second plug-in components are connected, wherein, it has the insulating layer to connect the parcel of copper bar outside, first plug-in components are suitable for and are connected with the leading-out terminal cooperation of a module, second plug-in components are suitable for and are connected with the leading-out terminal cooperation of another adjacent module. According to the inter-module connecting device provided by the embodiment of the utility model, two adjacent modules are connected through the first plug-in unit, the second plug-in unit and the connecting copper bar wrapping the insulating layer, so that the whole insulating protection is realized, no exposed copper part exists when the modules are installed, and the modules do not need to be additionally arranged on a protective cover, so that the modules can meet the IPXXB protection during and after installation.

Description

Inter-module connecting device and battery pack

Technical Field

The utility model relates to the technical field of battery modules, in particular to an inter-module connecting device and a battery pack.

Background

Among the correlation technique, the copper bar of battery package exposes the copper bar in electric connection position, and in the battery package installation, it is the casualties that the operating personnel electrocutes easily to use the exposed copper bar of electric connection point, therefore does not satisfy IPXXB protection in the installation, and the installation back needs satisfy IPXXB protection through protective cover insulation protection, exists the space of improving.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention is directed to an inter-module connection device that can satisfy IPXXB protection when and after a battery pack module is mounted.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

an inter-module connecting device comprising: first plug-in components, second plug-in components and connection copper bar, the one end of connecting the copper bar with first plug-in components are connected, the other end of connecting the copper bar with second plug-in components are connected, wherein, it has the insulating layer to connect the parcel of copper bar outside, first plug-in components are suitable for and are connected with the leading-out terminal cooperation of a module, second plug-in components are suitable for and are connected with the leading-out terminal cooperation of another adjacent module.

According to the inter-module connecting device of the embodiment of the utility model, the first plug-in unit comprises: a seat body defining a first mounting groove; the conductive piece is partially arranged in the first mounting groove and connected with the wire outlet end of the module, and partially extends out of the first mounting groove and is connected with the connecting copper bar; the cover body is covered on the seat body; the base body, the conductive piece and the cover body are respectively provided with a through hole suitable for the fastener to penetrate through, and the fastener penetrates through the through hole and is fixedly connected with the wire outlet end of the module.

Optionally, the conductive member includes: the mounting section is arranged in the first mounting groove, and the lower end of the mounting section is suitable for being electrically connected with a wire outlet end of the module; and one end of the connecting section is connected with the upper end of the mounting section, and the other end of the connecting section is connected with the connecting copper bar.

Optionally, the cover body is provided with a second mounting groove, and the fastener is provided with a limit boss extending along the circumferential direction of the fastener, wherein the limit boss is suitable for being abutted against the groove bottom of the second mounting groove.

Optionally, the lid with one in the pedestal has the draw-in groove, the lid with another in the pedestal has the card protruding, the card protruding with the draw-in groove joint cooperation.

Optionally, the fastener is a fastening bolt, the wire outlet end of the module comprises a wire outlet copper bar and a nut, and the fastening bolt penetrates through the wire outlet copper bar and is fastened and connected with the nut.

Optionally, the second insert is of the same construction as the first insert.

According to the inter-module connecting device provided by the embodiment of the utility model, at least one part of the connecting copper bar is protruded to form a bending section.

According to the inter-module connecting device provided by the embodiment of the utility model, the connecting copper bars are soft copper bars; and/or the cross-sectional dimension of at least one part of the connecting copper bar close to the first plug-in unit is gradually reduced along the direction close to the first plug-in unit; and/or the cross-sectional dimension of at least one part of the connecting copper bar close to the second insert is gradually reduced along the direction close to the second insert.

According to the inter-module connecting device provided by the embodiment of the utility model, two adjacent modules are connected through the first plug-in unit, the second plug-in unit and the connecting copper bar wrapping the insulating layer, so that the whole insulating protection is realized, no exposed copper part exists when the modules are installed, and the modules do not need to be additionally arranged on a protective cover, so that the modules can meet the IPXXB protection during and after installation.

Another object of the present invention is to provide a battery pack including the inter-module connecting device according to an embodiment of the present invention.

Compared with the prior art, the battery pack has the same advantages as the inter-module connecting device, and the description is omitted.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic diagram of an inter-module connecting device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a portion of an inter-module connecting device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a first insert according to an embodiment of the utility model;

FIG. 4 is an exploded view of a first insert according to an embodiment of the utility model;

fig. 5 is a schematic structural view of a battery pack according to an embodiment of the present invention.

Description of reference numerals:

the inter-module connecting device 100, the battery pack 200,

the battery module comprises a first plug-in component 10, a seat body 11, a first mounting groove 111, a clamping protrusion 112, a conductive component 12, a mounting section 121, a connecting section 122, a cover body 13, a second mounting groove 131, a clamping groove 132, a fastening piece 14, a limiting boss 141, a second plug-in component 20, a connecting copper bar 30, a bending section 31, an insulating layer 40, a battery module 50 and a wire outlet 51.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail with reference to fig. 1 to 5 in conjunction with examples.

The inter-module connection device 100 according to an embodiment of the present invention includes: the connecting copper bar comprises a first plug-in unit 10, a second plug-in unit 20 and a connecting copper bar 30, wherein one end of the connecting copper bar 30 is connected with the first plug-in unit 10, the other end of the connecting copper bar 30 is connected with the second plug-in unit 20, an insulating layer 40 wraps the outer side of the connecting copper bar 30, the first plug-in unit 10 is suitable for being connected with a wire outlet 51 of one module in a matched mode, and the second plug-in unit 20 is suitable for being connected with a wire outlet 51 of another adjacent module in a matched mode.

It can be understood that the insulating layer 40 may be a heat shrinkable tube or PVC, the connecting copper bar 30 is protected by the insulating layer 40, the two inserts are plastic protection elements, and when the connecting copper bar is installed, the two inserts are matched with the outlet end 51 of the module at the corresponding position, so that the wiring installation of the outlet end can be completed, no exposed copper part exists, and the whole device can realize the insulating protection.

According to the inter-module connecting device 100 provided by the embodiment of the utility model, two adjacent battery modules 50 are connected through the first plug-in unit 10, the second plug-in unit 20 and the connecting copper bar 30 wrapping the insulating layer 40, so that integral insulation protection is realized, no exposed copper part is left during module installation, no additional protective cover is needed, the battery modules can meet IPXXB protection during and after installation, and accidental risks such as electric shock and the like during operation of installation and maintenance personnel are avoided.

As shown in fig. 3 and 4, the first card 10 includes: the base body 11, the conductive piece 12, the cover body 13 and the fastening piece 14, the base body 11 defines a first mounting groove 111, a part of the conductive piece 12 is disposed in the first mounting groove 111 to realize the mounting of the conductive piece 12, the part of the conductive piece 12 disposed in the first mounting groove 111 can be connected with the outlet 51 of the module, for example, the connection can be realized by abutting, a part of the conductive piece 12 is disposed outside the first mounting groove 111, and the part disposed outside the first mounting groove 111 can be connected with the connecting copper bar 30, the cover body 13 is covered on the base body 11 to realize the fixing of the conductive piece 12 and avoid the exposure of the conductive piece 12, wherein, the base body 11, the conductive piece 12 and the cover body 13 are respectively provided with through holes, the fastening piece 14 can respectively penetrate through the through holes on the base body 11, the conductive piece 12 and the cover body 13, and the fastening piece 14 is fixedly connected with the outlet 51 of the module, so that the base body 11 abuts against the outlet 51, the first plug-in 10 is fixedly installed, and the outgoing copper bar of the outgoing terminal 51 is electrically connected with the conductive piece 12.

It is understood that the base 11 and the cover 13 may be made of plastic or other insulating material, and the exposed portion of the fastening member 14 is covered by an insulating layer for the convenience of operation of the user.

As shown in fig. 4, in some examples, conductive member 12 includes: the mounting section 121 is disposed in the first mounting groove 111, and a lower end of the mounting section 121 is adapted to be electrically connected to the outlet terminal 51 of the module, it can be understood that the first mounting groove 111 is a through groove, the mounting section 121 can be embedded in the first mounting groove 111 of the seat body 11, a bottom of the mounting section 121 can be abutted to the outlet terminal 51 to realize electrical connection, and the rest of the mounting section 121 can be covered and insulated by the seat body 11 and the cover body 13.

One end of the connecting section 122 is connected with the upper end of the mounting section 121, and the other end of the connecting section 122 is connected with the connecting copper bar 30, wherein the connecting section 122 and the connecting copper bar 30 can be matched in a lap joint mode, the connecting section 122 can be welded with the connecting copper bar 30, and after welding, the connecting section is wrapped by the insulating layer 40 to realize insulation, and the insulating layer 40 can be a heat shrink tube or PVC (polyvinyl chloride) and the like. The welding position of the connecting copper bar 30 and the connecting section 122 adopts a special-shaped structure so as to be completely matched with the connecting section 122, thereby facilitating welding, facilitating the wrapping of the insulating layer 40 and smoothing the insulating layer 40.

In some examples, both ends of the connecting copper bar 30 are welded to the conductive pieces 12 of the inserts, the connecting copper bar 30 is connected to the conductive pieces 12 through the connecting sections 122, so that the overall shape is in a state of large thickness at both ends and small thickness at the middle part, the connecting copper bar 30 has different cross-sectional dimensions in the extending direction thereof in order to ensure sufficient current carrying at each position, the cross-sectional dimension of the end part of the connecting copper bar 30 is smaller than that of the middle part, and as shown in fig. 2, the cross-sectional dimension of at least a part of the connecting copper bar 30 near the first insert 10 is gradually reduced in a direction near the first insert 10 (in a direction from right to left as shown in fig. 2), and correspondingly, the cross-sectional dimension of at least a part of the connecting copper bar 30 near the second insert 20 is gradually reduced in a direction near the second insert 20 (in a direction from left to right as shown in fig. 2).

As shown in fig. 4, in some examples, the cover 13 has a second mounting groove 131, the fastening member 14 has a limiting boss 141 extending along the circumferential direction of the cover, and when the fastening member 14 is mounted, the limiting boss 141 can abut against the groove bottom of the second mounting groove 131, so that the fastening member 14 is fixedly mounted, and the stability of the whole structure is improved.

As shown in fig. 3 and 4, in some examples, one of the cover 13 and the base 11 has a locking groove 132, and the other of the cover 13 and the base 11 has a locking protrusion 112, and the locking protrusion 112 is in locking fit with the locking groove 132, so as to achieve the assembly of the cover 13 and the base 11, and facilitate the fixing and assembling and disassembling of the internal conductive component 12.

In some examples, the fastening member 14 is a fastening bolt, the outlet end 51 of the module includes an outlet copper bar and a nut, a through hole corresponding to the position is formed in the outlet copper bar, and the fastening bolt can penetrate through the through hole in the outlet copper bar and is fastened and connected with the nut, so that the first plug-in 10 is connected with the outlet end 51 of the module.

As shown in fig. 1 and 2, according to some embodiments of the present invention, the second insert 20 has the same structure as the first insert 10, so that the manufacturing and assembling are facilitated, and the overall structure is stable.

As shown in fig. 1 and 2, according to some embodiments of the present invention, the connecting copper bar 30 extends in the left-right direction, at least a portion of the connecting copper bar 30 protrudes outward (i.e., upward as shown in fig. 1) to form a bent section 31, a portion of the connecting copper bar 30 may also protrude forward to form a bent section 31, and the protruding direction of the bent section 31 is not parallel to the extending direction of the connecting copper bar 30, wherein the connecting copper bar 30 is a flexible copper bar, so as to form the bent section 31, as shown in fig. 1, the bent section 31 is substantially arched, and by providing the bent section 31, when the inter-module connecting device 100 is installed on two modules, the bent section 31 can absorb a portion of stress, reduce the stress on the installation point, prevent the stressed bolt from being loosened reversely, and avoid the installation point from heating and fire causing fire.

The battery pack 200 comprises the inter-module connecting device 100 according to the embodiment of the utility model, the output electrodes of two adjacent battery modules 50 are connected by the inter-module connecting device 100, and by adopting the inter-module connecting device 100, no exposed copper part exists when the battery modules 50 are installed, no additional protective cover is needed, so that the battery modules 50 can meet IPXXB protection during and after installation, and accidental risks such as electric shock and the like during operation of installation and maintenance personnel are avoided.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An inter-module connecting device (100), comprising: first plug-in components (10), second plug-in components (20) and connection copper bar (30), the one end of connecting copper bar (30) with first plug-in components (10) are connected, the other end of connecting copper bar (30) with second plug-in components (20) are connected, wherein, it has insulating layer (40) to connect copper bar (30) outside parcel, first plug-in components (10) are suitable for and are connected with the leading-out terminal (51) cooperation of a module, second plug-in components (20) are suitable for and are connected with the leading-out terminal (51) cooperation of another adjacent module.

2. An inter-module connecting device (100) according to claim 1, wherein said first insert (10) comprises:

a seat body (11), wherein the seat body (11) is limited with a first mounting groove (111);

the conductive piece (12), a part of the conductive piece (12) is arranged in the first mounting groove (111) and connected with the wire outlet end (51) of the module, and a part of the conductive piece (12) extends out of the first mounting groove (111) and is connected with the connecting copper bar (30);

the cover body (13), the said cover body (13) is covered on the said base (11);

the base body (11), the conductive piece (12) and the cover body (13) are respectively provided with a through hole suitable for the fastener (14) to penetrate through, and the fastener (14) penetrates through the through hole and is fixedly connected with the outlet end (51) of the module.

3. The inter-module connection device (100) according to claim 2, wherein said conductive member (12) comprises:

the mounting section (121), the mounting section (121) is arranged in the first mounting groove (111), and the lower end of the mounting section (121) is suitable for being electrically connected with the outlet end (51) of the module;

one end of the connecting section (122) is connected with the upper end of the mounting section (121), and the other end of the connecting section (122) is connected with the connecting copper bar (30).

4. The inter-module connecting device (100) according to claim 2, wherein the cover (13) has a second mounting groove (131), and the fastening member (14) has a stopper boss (141) extending circumferentially thereof, the stopper boss (141) being adapted to abut against a groove bottom of the second mounting groove (131).

5. The inter-module connecting device (100) according to claim 2, wherein one of the cover (13) and the base (11) has a locking groove (132), and the other of the cover (13) and the base (11) has a locking protrusion (112), and the locking protrusion (112) is in locking fit with the locking groove (132).

6. The inter-module connecting device (100) according to claim 2, wherein the fastening member (14) is a fastening bolt, the outlet end (51) of the module comprises an outlet copper bar and a nut, and the fastening bolt penetrates through the outlet copper bar and is fastened and connected with the nut.

7. The inter-module connecting device (100) according to any one of claims 1 to 6, wherein the second insert (20) has the same structure as the first insert (10).

8. The inter-module connecting device (100) according to claim 1, wherein at least a portion of the connecting copper bar (30) protrudes to form a bent section (31).

9. The inter-module connecting device (100) according to claim 1, wherein said connecting copper bar (30) is a soft copper bar; and/or the cross-sectional dimension of at least one part of the connecting copper bar (30) close to the first insert is gradually reduced along the direction close to the first insert (10); and/or the cross-sectional dimension of at least one part of the connecting copper bar (30) close to the second insert is gradually reduced along the direction close to the second insert (20).

10. A battery pack (200) comprising an inter-module connecting device (100) according to any one of claims 1-9.