CN212113870U - Battery module output pole anti loosening structure, battery output pole protection piece and battery module - Google Patents
Battery module output pole anti loosening structure, battery output pole protection piece and battery module Download PDFInfo
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- CN212113870U CN212113870U CN202021235917.7U CN202021235917U CN212113870U CN 212113870 U CN212113870 U CN 212113870U CN 202021235917 U CN202021235917 U CN 202021235917U CN 212113870 U CN212113870 U CN 212113870U
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- battery module
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- output pole
- battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model relates to a battery technology field discloses a battery module output pole anti loosening structure, battery output pole protection piece and battery module, battery module output pole anti loosening structure includes the lid, be provided with the restriction portion on the lid, restriction portion sets up to be limited in can accepting the output pole of battery module and the interconnect's each other's of outside electric connector connecting portion accept the face, the lid can install in accept the face. The battery module output electrode anti-loosening structure can limit the mutually connected connecting parts of the output electrode of the battery module and the external electric connecting piece to the bearing surfaces capable of bearing the connecting parts.
Description
Technical Field
The utility model relates to a battery technology field specifically relates to a battery module output pole anti loosening structure, battery output pole protection piece and battery module.
Background
With the rapid increase of the number of automobiles in China, the traditional fuel oil vehicle becomes one of the main sources of environmental pollution in China, and the electric automobile becomes an important development industry of new energy automobiles due to the characteristics of energy conservation and environmental protection. The battery pack is used as a core component of the electric automobile, and the safety and the reliability of the battery pack directly determine the safety performance of the electric automobile.
The battery module is an important component unit of the battery pack, provides power for the whole electric automobile and is an important guarantee for the good running of the electric automobile. At present, the output pole of battery module passes through bolted connection with external electrical connection piece, and in the assembling process of battery package, the phenomenon of anti-pine easily appears in the bolt, and like this, will connect between output pole and the external electrical connection piece and become flexible, very easily appear striking sparks from this, and phenomenon such as local heating is big greatly has increased the potential safety hazard of battery package.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the problem that it is not hard up to easily appear connecting between battery module's the output pole and the outside electric connection piece that prior art exists, providing a battery module output pole anti loosening structure, this battery module output pole anti loosening structure can be specified in the output pole of battery module and the mutual connection's each other's of outside electric connection piece connecting portion and accept connecting portion accept the face.
In order to achieve the above object, an aspect of the present invention provides a battery module output pole anti-loosening structure, which includes a cover body, wherein a limiting portion is disposed on the cover body, the limiting portion is configured to limit the output pole of the battery module and the mutually connected connecting portions of the external electric connecting piece to the receiving surface capable of receiving the connecting portions, wherein: the cover body can be attached to the receiving surface.
Above-mentioned technical scheme, through setting up the lid and set up the restriction part on the lid to can be restricted in the output pole of battery module and the interconnect's each other connecting portion of external electrical connector and can accept the face of accepting of connecting portion, like this, make the firm top surface that accepts the face like the base that is fixed in of the interconnect's each other connecting portion of the two, difficult appearance is connected not hard up phenomenon, especially when connecting between other battery module in the battery package, the output pole of the battery module of accomplishing of having connected and corresponding external electrical connector connecting portion each other are difficult for receiving the influence of the battery module in other installations, connecting portion still connect comparatively firmly each other, the phenomenon such as big has been reduced to strike sparks and local heating, the safety in utilization of battery package has been improved from this.
Preferably, the limiting portion includes a limiting groove disposed on a wall of the cover body facing the receiving surface, the limiting groove extends along an extending direction of the external electrical connector, two ends of the limiting groove are open to allow the external electrical connector and the output electrode to pass through, respectively, and the limiting groove can accommodate the connecting portion to limit the connecting portion.
Preferably, a surface of the stopper groove facing the connecting portion is formed as a stopper surface capable of being brought into close contact with the connecting portion.
Preferably, the cover is an insulator.
Preferably, the cover body is provided with a mounting hole for a second fixing piece for fixing the cover body on the bearing surface to pass through; and/or
The cover body is provided with a through hole for the first fixing piece for fixing the connecting part on the bearing surface to pass through.
Preferably, when the mounting holes and the via holes are provided, the cover body extends along a horizontal direction perpendicular to an extending direction of the external electrical connector, the cover body is provided with a plurality of mounting holes distributed along the extending direction of the cover body, some of the mounting holes are provided on one side of the via holes, and the rest of the mounting holes are provided on the other side of the via holes.
Preferably, the mounting hole has the same structure as the via hole, the mounting hole includes a first through hole capable of accommodating the second fixing member and a second through hole communicated with the first through hole and located at a first end of the first through hole, which is far away from the bearing surface, and a radial dimension of the second through hole is greater than a radial dimension of the first through hole.
Preferably, a protective bushing for protecting the inner wall of the first through hole is arranged in the first through hole; or
A protective bushing for protecting the inner wall of the first through hole is arranged in the first through hole, and the protective bushing is provided with a protruding portion extending beyond the first end of the first through hole.
The utility model discloses the second aspect provides a battery output pole protection piece, battery output pole protection piece is including installing the base in the end plate of battery module, deviating from of base the face of end plate becomes and accepts the output pole of battery module and the face of accepting of the mutual interconnect's of outside electric connector connecting portion each other of battery module, battery output pole protection piece includes the utility model provides a battery module output pole anti loosening structure, wherein: the cover is mounted to the base. Through setting up in battery output pole protection piece the utility model provides a battery module output pole anti loosening structure can be so that the output pole of battery module and external electrical connector's interconnect's each other connecting portion are difficult not hard up, have improved the security of battery module.
The utility model discloses the third aspect provides a battery module, battery module's end plate department is provided with the utility model provides a battery output pole protection piece. Through setting up in battery module's end plate department the utility model provides a battery output pole protection piece can be so that battery module's output pole and external electrical connector's interconnect's each other connecting portion are difficult not hard up, have improved battery module's safety in utilization.
Drawings
Fig. 1 is a schematic perspective view illustrating a battery module to which a battery output electrode protector according to a preferred embodiment of the present invention is applied;
fig. 2 is a schematic structural view of an application state of a battery output electrode protection member according to a preferred embodiment of the present invention, in which a battery module output electrode anti-loosening structure according to a preferred embodiment of the present invention is provided;
FIG. 3 is a schematic illustration of an exploded view of the application state structure shown in FIG. 2;
fig. 4 is a schematic perspective view of a locking structure of an output electrode of a battery module according to a preferred embodiment of the present invention.
Description of the reference numerals
10-an output electrode anti-loosening structure of the battery module; 12-a cover body; 14 a-a via; 14 b-mounting holes; 16-a limiting groove; 160-a limiting surface; 18-a protective sleeve; 20-a battery module; 22-an end plate; 24-an output pole; 26-external electrical connections; 40-battery output pole protector; 42-a base; 420-perforation.
Detailed Description
In the present invention, the use of directional terms such as "upper, lower, left and right" in the absence of a contrary explanation generally means that the directions shown in the drawings and the practical application are understood, and "inner and outer" mean inner and outer of the outline of the component.
It should be noted that end plates 22 are provided at both ends of the battery module 20, the battery module 20 has output poles 24 capable of being connected to bus bars, the output poles 24 are electrically connected to other battery modules or external elements in the battery pack through external electrical connection members 26, the output poles 24 are electrically connected to the external electrical connection members 26 through fixing members such as bolts, and it is understood that the external electrical connection members 26 are conductors. Wherein the portion of the output pole 24 and the external electrical connector 26 connected to each other may be referred to as a connection portion. Be provided with a plurality of electric cores that set up side by side in the battery module 20, the array orientation of a plurality of electric cores is the length direction of battery module 20, and the horizontal direction of the length direction of perpendicular to battery module 20 is then the width direction of battery module 20.
The utility model provides a battery module output pole anti loosening structure, battery module output pole anti loosening structure 10 includes lid 12, be provided with the restriction portion on lid 12, the restriction portion sets up to can limit the output pole 24 of battery module 20 and the connecting portion of external electric connection piece 26 interconnect each other to the face of accepting the connecting portion, wherein, it should be noted that, battery output pole protection piece 40 can include can install in the base 42 of the end plate 22 of battery module 20, the face that deviates from end plate 22 of base 42 forms the face of accepting the connecting portion of the output pole 24 of battery module 20 and external electric connection piece 26 interconnect each other, therefore, from the position that shows in figure 1, the connecting portion can support in the top surface of base 42, can set up on lid 12 for the first mounting that will the connecting portion be fixed in the face of accepting like the via hole 14a that first bolt passed, thereby, the connecting portion, which connects the two to each other, is fixed to the receiving surface, and it is understood that a hole may be opened in the receiving surface for the first fixing member to be inserted. Through setting up lid 12 and setting up the restriction part on lid 12 to can be restricted in the receiving face that can accept the connecting portion with each other of output pole 24 and external electrical connector 26 of battery module 20, like this, make the connecting portion that both interconnect firm be fixed in receiving the face like the top surface of base 42, be difficult for appearing connecting the phenomenon of becoming flexible, especially when connecting between other battery module in the battery package, the connecting portion between each other of output pole 24 and corresponding external electrical connector 26 of battery module 20 that has been connected is difficult for receiving the influence of the battery module in other installations, it is comparatively firm that the connecting portion still connects each other, the phenomenon such as the big has been reduced to strike sparks and local heating, has improved the safety in utilization of battery package from this. Wherein the cover 12 may be an insulating member, for example, the cover 12 may be a plastic member, and preferably, the cover 12 may be made of a hard plastic.
The lid 12 can be attached to the receiving surface, and the stopper portion can restrict the connection portion to the receiving surface when the lid 12 is attached to the receiving surface, that is, the top surface of the base 42. Wherein the cover 12 may be mounted to the base 42 by fasteners, such as bolts.
As shown in fig. 2, 3 and 4, the limiting portion may include a limiting groove 16 disposed on a wall of the cover 12 facing the receiving surface, the limiting groove 16 may extend along an extending direction of the external electrical connector 26, both ends of the limiting groove 16 are open to pass the external electrical connector 26 and the output electrode 24, respectively, it is understood that one end of the limiting groove 16 may pass the external electrical connector 26, the other end of the limiting groove 16 may pass the output electrode 24, and the limiting groove 16 may receive the connecting portion to limit the connecting portion. By providing the stopper groove 16 in the lid body 12, the connection portion can be restricted to the receiving surface, and the entire structure is simple.
The surface of the limiting groove 16 facing the connecting portion is formed as a limiting surface 160 capable of being in close contact with the connecting portion, and the limiting surface 160 is in close contact with the connecting portion, so that the connecting portion can be pressed against the receiving surface, the connecting portion is more firmly limited to the receiving surface, and the loosening phenomenon of the connecting portion is further reduced.
As shown in fig. 2 and 3, the cover 12 may be provided with a mounting hole 14b through which a second fixing member, such as a second bolt, for fixing the cover 12 to the receiving surface passes. Accordingly, a through hole 420 may be formed in the receiving surface, such as the top surface of the base 42, for the second fastener to extend into. In addition, it should be noted that a second fastener may extend into endplate 22, thereby securely connecting base 42 to base 42.
The cover 12 may extend in a horizontal direction perpendicular to the extending direction of the external electrical connectors 26, and it is understood that the cover 12 may extend in the width direction of the battery module 20, and in order to allow the cover 12 to be more stably connected to the base 42 or the end plate 22, a plurality of mounting holes 14b may be provided on the cover 12, which are distributed in the extending direction of the cover 12, when the mounting holes 14b and the through holes 14a are provided, a part of the mounting holes 14b among the plurality of mounting holes 14b may be provided on one side of the through holes 14a, and the remaining mounting holes 14b among the plurality of mounting holes 14b may be provided on the other side of the through holes 14 a. When two mounting holes 14b are provided, the two mounting holes 14b may be respectively provided at both sides of the via hole 14 a.
The mounting hole 14b and the via hole 14a may have the same structure. As shown in fig. 2, the mounting hole 14b may include a first through hole capable of receiving the second fixing member and a second through hole communicating with the first through hole and located at a first end of the first through hole, which is far away from the bearing surface, i.e., a top end of the first through hole, wherein a radial dimension of the second through hole is larger than a radial dimension of the first through hole, thereby facilitating driving of the corresponding fixing member into the mounting hole 14b or the through hole 14a, and further, the second through hole may be capable of receiving a bolt cap therein, wherein the bolt cap may be made of an insulating material, i.e., the bolt cap may be an insulating member.
In addition, a protective bushing 18 for protecting the inner wall of the first through hole can be arranged in the first through hole, so that the damage to the inner wall of the first through hole when the fixing piece is installed can be reduced, and the service life of the battery module output electrode anti-loosening structure 10 is prolonged.
Preferably, the protective bush 18 may have a protrusion extending beyond the first end of the first through hole, and by providing the protrusion, damage to the cover 12 when the fixing member is installed may be reduced, thereby further improving the service life of the battery module output electrode anti-loose structure 10.
The utility model also provides a battery output pole protection piece, combine to show in fig. 2 and fig. 3, battery output pole protection piece 40 can be including installing in the base 42 of the end plate 22 of battery module 20, and the face shape that deviates from the end plate 22 of base 42 becomes the face of accepting of the connecting portion of interconnect each other of the output pole 24 that can accept battery module 20 and external electrical connector 26, and battery output pole protection piece 40 can include the utility model provides a battery module output pole anti loosening structure 10, lid 12 mountable in base 42. The mounting manners of the base 42 and the cover 12 in the battery module output electrode anti-loosening structure 10 have been mentioned in the foregoing, and are not described herein again. Through setting up in battery output pole protection piece 40 the utility model provides a battery module output pole anti loosening structure 10 can be so that the output pole 24 of battery module 20 and external electrical connector 26 the interconnect's each other connecting portion are difficult not hard up, have improved battery module 20's security.
The utility model also provides a battery module, battery module 20's end plate 22 department is provided with the utility model provides a battery output pole protection piece 40. Through set up in the end plate 22 department of battery module 20 the utility model provides a battery output pole protection piece 40 can make the output pole 24 of battery module 20 and external electrical connector 26 the interconnect's each other connecting portion be difficult not hard up, has improved battery module 20's safety in utilization.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical feature. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. A battery module output pole looseness prevention structure, characterized in that, the battery module output pole looseness prevention structure (10) includes a cover body (12), be provided with the restriction portion on the cover body (12), the restriction portion sets up to can restrict the output pole (24) of battery module (20) and the mutual interconnect's of external electrical connector (26) connecting portion each other to the face of accepting the connecting portion, wherein: the cover (12) is attachable to the receiving surface.
2. The battery module output electrode anti-loosening structure according to claim 1, wherein the limiting portion comprises a limiting groove (16) provided on a wall of the cover body (12) facing the receiving surface, the limiting groove (16) extends along an extending direction of the external electrical connection member (26), both ends of the limiting groove (16) are open to allow the external electrical connection member (26) and the output electrode (24) to pass through, respectively, and the limiting groove (16) can receive the connecting portion to limit the connecting portion.
3. The battery module output electrode looseness prevention structure according to claim 2, wherein a face of the stopper groove (16) facing the connection part is formed as a stopper face (160) capable of being in close contact with the connection part.
4. The battery module output electrode looseness prevention structure according to claim 1, wherein the cover body (12) is an insulating member.
5. The battery module output electrode looseness prevention structure according to any one of claims 1 to 4, wherein a mounting hole (14b) through which a second fixing member for fixing the cover body (12) to the receiving surface passes is provided on the cover body (12); and/or
The cover body (12) is provided with a through hole (14a) through which a first fixing member for fixing the connecting part to the receiving surface passes.
6. The battery module output pole looseness prevention structure according to claim 5, wherein when the mounting hole (14b) and the through hole (14a) are provided, the cover body (12) extends in a horizontal direction perpendicular to an extending direction of the external electrical connection member (26), a plurality of the mounting holes (14b) are provided on the cover body (12) distributed in the extending direction of the cover body (12), a part of the mounting holes (14b) among the plurality of the mounting holes (14b) is provided on one side of the through hole (14a), and the remaining mounting holes (14b) among the plurality of the mounting holes (14b) are provided on the other side of the through hole (14 a).
7. The battery module output pole looseness prevention structure according to claim 6, wherein the mounting hole (14b) is identical in structure to the through hole (14a), the mounting hole (14b) comprises a first through hole capable of accommodating the second fixing piece and a second through hole communicated with the first through hole and located at a first end, far away from the bearing surface, of the first through hole, and the radial dimension of the second through hole is larger than that of the first through hole.
8. The battery module output electrode looseness prevention structure according to claim 7, wherein a protection bush (18) that protects an inner wall of the first through hole is provided in the first through hole; or
A protective bushing (18) is disposed within the first through hole to protect an inner wall of the first through hole, the protective bushing (18) having a protrusion extending beyond a first end of the first through hole.
9. A battery output pole protector, characterized in that the battery output pole protector (40) comprises a base (42) mountable to an end plate (22) of a battery module (20), a face of the base (42) facing away from the end plate (22) being formed as a receiving face capable of receiving mutually interconnected connections of an output pole (24) of the battery module (20) and an external electrical connector (26), the battery output pole protector (40) comprising a battery module output pole looseness prevention structure (10) according to any one of claims 1 to 8, wherein: the cover (12) is attached to the base (42).
10. A battery module, characterized in that the battery output electrode protector (40) according to claim 9 is provided at an end plate (22) of the battery module (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021235917.7U CN212113870U (en) | 2020-06-29 | 2020-06-29 | Battery module output pole anti loosening structure, battery output pole protection piece and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021235917.7U CN212113870U (en) | 2020-06-29 | 2020-06-29 | Battery module output pole anti loosening structure, battery output pole protection piece and battery module |
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| Publication Number | Publication Date |
|---|---|
| CN212113870U true CN212113870U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021235917.7U Active CN212113870U (en) | 2020-06-29 | 2020-06-29 | Battery module output pole anti loosening structure, battery output pole protection piece and battery module |
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| CN (1) | CN212113870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109409A1 (en) * | 2021-12-13 | 2023-06-22 | 宁德时代新能源科技股份有限公司 | Output electrode base, battery, and electric device |
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2020
- 2020-06-29 CN CN202021235917.7U patent/CN212113870U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109409A1 (en) * | 2021-12-13 | 2023-06-22 | 宁德时代新能源科技股份有限公司 | Output electrode base, battery, and electric device |
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