CN218602599U - Connecting piece for battery box and battery pack - Google Patents
Connecting piece for battery box and battery pack Download PDFInfo
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- CN218602599U CN218602599U CN202222491424.5U CN202222491424U CN218602599U CN 218602599 U CN218602599 U CN 218602599U CN 202222491424 U CN202222491424 U CN 202222491424U CN 218602599 U CN218602599 U CN 218602599U
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- box
- frame
- connecting portion
- battery
- box frame
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a connecting piece and battery package for battery box, this connecting piece includes first connecting portion and second connecting portion, first connecting portion are connected in the box frame of battery box, the second connecting portion are connected in the box roof beam of battery box, the junction that first connection links to each other with the second connecting portion is close to the strengthening rib in the box frame, when the battery box receives the impact, the junction of connecting piece will be transmitted to the power that the box roof beam received, because the junction is close to the strengthening rib department in the box frame, the strengthening rib makes the box frame can bear bigger effort, thereby can effectively reduce the risk that the box frame that is located the junction is damaged by the extrusion. The battery pack with the connecting piece has the advantages that the box body frame and the box body beam are fixedly connected through the connecting piece, so that the battery box body not only has reliable connection strength, but also can effectively reduce the risk that the box body frame is extruded and damaged when the battery pack vibrates, and the battery pack has stable structural strength.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a connecting piece and battery package for battery box.
Background
In the existing battery pack manufacturing process, the battery box body mainly has two modes to connect and fix the box body frame and the box body beam, wherein one mode is welding fixation, and the other mode is fixedly connecting the box body beam and the box body frame through a connecting piece.
The battery pack is located in an electric device, and a battery box of the battery pack is often vibrated due to the operation of the electric device. If the existing welding fixing mode is adopted: in the vibration process, the welding part for connecting the box body frame and the box body beam has the risk of vibration failure, so that the connection failure of the box body frame and the box body beam is caused; if adopt current connecting piece fixed mode: in the vibration process, the contact position of the connecting piece and the box body frame causes the risk that the box body frame is extruded and damaged due to stress concentration, and the box body frame and the box body beam are connected and fail. Therefore, how to improve the reliability of the connection between the box frame and the box beam becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problem of above-mentioned prior art, one of the purposes of the utility model is to provide a connecting piece for battery box, its reliability problem of being connected that can solve box frame and box roof beam.
In order to overcome the technical problem of above-mentioned prior art, the utility model aims at two provides a battery package, its box frame is reliable with being connected of box roof beam to make the battery package wholly have reliable structural stability.
The utility model discloses a technical scheme who adopts for one of reaching the purpose is:
the utility model provides a connecting piece for battery box, it is used for connecting box frame and box roof beam, the connecting piece includes first connecting portion and second connecting portion, the box frame fixed connection of first connecting portion and battery box, the box roof beam fixed connection of second connecting portion and battery box, first connecting portion be equipped with the junction that the link of second connecting portion is connected, the junction is close to the strengthening rib of box frame.
The utility model discloses a technical scheme that two adopt of purpose is:
still provide a battery package, including foretell battery is connecting piece for the box, still include box frame and box roof beam, the box frame with the box roof beam passes through connecting piece is in order to realize fixed connection for the battery box.
To sum up, the utility model discloses following technological effect has:
the utility model provides a connecting piece for battery box, including first connecting portion and second connecting portion, first connecting portion and box frame are connected, second connecting portion and box roof beam are connected, through the junction that links to each other with the second connecting portion setting at first connecting portion, and make this junction be close to the horizontal strengthening rib department of box frame, when the battery box receives the impact, the junction of connecting piece will be transmitted to the power that the box roof beam received, because the junction is close to the strengthening rib department in the box frame, the strengthening rib makes the box frame can bear bigger effort, thereby can effectively reduce the risk that the box frame that is located the junction is damaged by the extrusion, so that have more reliable stable joint strength between box frame and the box roof beam.
The battery pack has the connecting piece for the battery box, and the box frame and the box beam are fixedly connected through the connecting piece, so that the battery box not only has reliable connection strength, but also can effectively reduce the risk that the box frame is extruded and damaged when the battery pack vibrates, and the battery pack has stable structural strength.
Drawings
Fig. 1 is a schematic perspective view of a hidden transverse box frame of a battery pack according to some embodiments.
Fig. 2 is a partially exploded view of a structure of the box girder and the box frame according to some embodiments.
FIG. 3 is a partial cross-sectional view of some embodiments of a structure for coupling a box girder to a box jamb.
Fig. 4 is a schematic perspective view of a connector for a battery case according to some embodiments.
Wherein the reference numerals have the following meanings:
1-box body frame, 11-first longitudinal box body frame, 111-first hollow cavity and 12-second longitudinal box body frame;
2-box beam, 21-first transverse box beam, 211-second hollow cavity;
3-reinforcing ribs;
4-connecting piece, 41-first connecting part, 42-second connecting part, 43-connecting part;
5-reinforcing the partition board;
6-inclined plane;
7-chamfering;
81-the first locking member, 82-the second locking member.
Detailed Description
The technical solution in this embodiment will be clearly and completely described below with reference to the drawings in this embodiment. The present embodiment described herein is for illustrative purposes only and is not intended to limit the scope of the present invention, and it should be understood that various modifications and changes may be made to the present embodiment without departing from the scope of the present invention.
In the description of the present invention, unless explicitly specified or limited otherwise, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Further, in the description of the present invention, it should be understood that the directional terms described in the embodiments are described in terms shown in the drawings, and should not be construed as limiting the embodiments. It will also be understood that, in the context of a connection of one element or feature to another element(s), it can be connected not only directly to the other element(s), but also indirectly to the other element(s) through intervening elements.
The exemplary embodiment of the utility model provides a connecting piece 4 for battery box at first, please refer to fig. 1 to 4, this connecting piece 4 is used for connecting box frame 1 and box roof beam 2, this connecting piece 4 includes first connecting portion 41 and second connecting portion 42, 1 fixed connection of box frame of first connecting portion 41 and battery box, 2 fixed connection of box roof beam of second connecting portion 42 and battery box, first connecting portion 41 is equipped with the junction 43 that is connected with the link of second connecting portion 42, be close to the strengthening rib 3 of box frame 1 through the projection of junction 43 in the side of box frame 1. Can receive when assaulting at the battery box, the junction 43 of connecting piece 4 will be transmitted to the power that box roof beam 2 received, because junction 43 is close to 3 departments of strengthening rib of box frame 1, strengthening rib 3 makes box frame 1 can bear bigger effort to can effectively reduce the risk that the box frame 1 that is located junction 43 is damaged by the extrusion, so that have more reliable and stable joint strength between box frame 1 and the box roof beam 2.
It should be noted that the projection of the reinforcing ribs 3 on the side of the box frame divides the box frame into several regions bounded by the reinforcing ribs 3, the interior of each region is symmetrically divided into a radiation region containing the reinforcing ribs and a non-radiation region without the reinforcing ribs, and "close to" means that the projection of the joint 43 on the side of the box frame 1 falls within the radiation region containing the reinforcing ribs. Further, in some embodiments of the present invention, "close to" means that the projection of the reinforcing rib 3 on the side of the box frame 1 at least partially overlaps with the projection of the reinforcing rib 3 on the side of the box frame 1.
The box frame 1 is a frame used for installing other parts in the battery box, and is provided with a plurality of through holes, so that the installation of other parts can be facilitated while the weight is reduced. In order to meet the requirements of the use environment inside the battery and light weight, the material of the box frame 1 needs to have certain rigidity and certain deformability, and for example, the material is made of metal such as aluminum and steel which is easy to process. The case frame 1 may be an integrated structure or a separately assembled structure, and the separately assembled structure may be generally selected in engineering to facilitate installation, for example, in this embodiment, please refer to fig. 1, the battery case may include a first vertical case frame 11 and a second vertical case frame 12.
Generally, the box body frame 1 may be provided with a box body beam 2 to form a containing cavity for containing the battery pack, the box body beam 2 includes a box body cross beam arranged parallel to the first longitudinal box body frame 11, and a box body cross beam arranged perpendicular to the first longitudinal box body frame 11, for example, in this embodiment, referring to fig. 1, the battery box body may include a first transverse box body beam 21.
In this embodiment, in order to reduce the overall weight of the battery pack, the first hollow cavity 111 may be disposed in the box frame 1, and the second hollow cavity 211 may be disposed in the box beam 2, so that the weight of the box beam 2 and the box frame 1 may be effectively reduced, and the box beam 2 and the connecting member 4 may be connected to further enhance the overall rigidity of the battery box. Generally, the box girder 2 and the box frame 1 are formed by punching or bending a metal such as aluminum or steel.
Usually, a reinforcing rib 3 may be disposed in the first hollow cavity 111 of the box frame 1 to divide the first hollow cavity 111 in the box frame 1 into multiple hollow cavities, and the reinforcing rib 3 is parallel to the bottom wall of the box frame 1 and penetrates through the first hollow cavity 111 disposed in the box frame 1, for example, in this embodiment, referring to fig. 1 to 3, the box frame 1 may include three reinforcing ribs 3. Through setting up strengthening rib 3, be favorable to better strengthening the whole rigidity of box frame 1, make battery box 1 non-deformable of box frame when receiving external force.
Referring to fig. 1, in the present embodiment, a case frame 1 is a first longitudinal case frame 11, a case beam 2 is a first transverse case beam 21, and a reinforcing rib 3 is a reinforcing rib 3 in the middle of a first hollow cavity 111, which are taken as examples to describe the connecting member 4 for a battery case provided in the present embodiment. In some embodiments, the connecting member 4 in this embodiment may also be implemented to the connection and fixation of the box girder 2 and the box girder 2, or the connection and fixation of the box frame 1 and the box frame 1.
Referring to fig. 3, in the present embodiment, the second connecting portion 42 of the connecting member 4 extends into the second hollow cavity 211 of the first longitudinal box beam 21, and is fastened to the extending end of the first longitudinal box beam 21 and the second connecting portion 42 through the first fastening member 81. Specifically, in the present embodiment, the first locking member 81 is a fastening bolt.
Referring to fig. 3, a connection portion 43 where the first connection portion 41 is connected to the connection end of the second connection portion 42 is located in the middle of the first connection portion 41, and the first connection portion 41 is connected to the box frame 1 by a second locking member 82 in a locking manner, which may be a rivet connection or a bolt connection. Second retaining member 82 is located the both sides of junction 43, adopts the mode that junction 43 is located the middle part of first connecting portion 41, can evenly set up the locking connection of locking hole cooperation second retaining member 82 along junction 43 periphery at first connecting portion 41 to make first connecting portion 41 can be more stable be fixed in box frame 1. Specifically, in the present embodiment, the first locking member 81 is a fastening bolt.
In the connecting member 4 of the present embodiment, the first connecting portion 41 and the second connecting portion 42 are integrally formed. The connecting member 4 is generally formed by bending, on one hand, the processing difficulty of the connecting member 4 can be reduced, on the other hand, the reliability of the rigidity of the connecting member 4 is improved by the integral forming process, and the shape of the first connecting portion 41 can be various shapes and various sizes, such as rectangle, square or cylinder. Specifically, the shape of the first connection portion 41 may be determined according to the specific shape and size of the second connection portion 42.
Referring to fig. 3, at least one end of the second connecting portion 42, which is inserted into the second hollow cavity 211 of the box girder 2, is provided with a reinforcing partition plate 5 parallel to the bottom wall of the box girder 2, the hollow cavity at the end is divided into two hollow cavities, and the reinforcing partition plate 5 is arranged to function like the reinforcing rib 3, so that the overall rigidity of the box girder 2 is enhanced, and the box girder 2 is not easily deformed when the battery box is subjected to an external force. Referring to fig. 2 to 3, the connecting member 4 has two second connecting portions 42, the two second connecting portions 42 are respectively inserted into the two-layer hollow cavities of the box body beam 2, and the reinforcing partition 5 in the box body beam 2 is clamped between the two second connecting portions 42. Preferably, in the present embodiment, the reinforcing partition 5 is parallel to the bottom wall of the box girder 2 and penetrates through the second hollow cavity 211 of the box girder 2, so as to better reinforce the overall rigidity of the box girder 2.
Further, on the basis that the connecting member 4 is provided with two second connecting portions 42, please refer to fig. 2 and 3, the connecting ends of the two second connecting portions 42 are both provided with inclined surfaces 6 inclined toward the direction of the reinforcing ribs 3 in the box frame 1 to form bent portions, so that the two connecting portions 43 of the two second connecting portions 42 and the first connecting portion 41 are both close to the reinforcing ribs 3 in the box frame 1, and therefore, the acting forces from the two connecting portions 43 act on the areas where the reinforcing ribs 3 are arranged on the box frame 1, so that the risk that the box frame 1 at the connecting portions 43 is damaged by being squeezed can be effectively reduced.
Still further, referring to fig. 2 and 3, in the present embodiment, an end of each second connecting portion 42 facing the side of the reinforced partition 5 is provided with a chamfer 7, so that burrs generated by machining of the second connecting portion 42 can be effectively removed, and the second connecting portion 42 can be conveniently inserted into the double-layer hollow cavity of the box girder 2. Of course, in actual production, the end portions of the upper and lower two side surfaces of the second connecting portion 42 may be provided with the chamfer 7, which is not specifically limited by the present invention.
Referring to fig. 3, in this embodiment, the reinforcing partition 5 in the box girder 2 is opposite to the reinforcing rib 3 in the box frame 1, and by arranging the reinforcing partition and the reinforcing rib oppositely, the overall rigidity of the box girder 2 and the box frame 1 can be further enhanced on the premise of not increasing the wall thickness of the box girder 2 and the box frame 1, so that the box body is not easy to deform when the battery box body is subjected to an external force.
The exemplary embodiment of the present invention further provides a battery pack, please refer to fig. 1, the battery pack includes the above-mentioned connecting member 4 for the battery box, and further includes a box frame 1 and a box beam 2, the box frame 1 and the box beam 2 pass through the connecting member 4 for the battery box to realize the fixed connection.
Based on above-mentioned technical scheme, box frame 1 and box roof beam 2 carry out fixed connection through this connecting piece 4 for the battery box not only has reliable joint strength, can also effectively reduce box frame 1 and take place by the risk of extrusion damage when follow-up battery package vibrates, so that the battery package has stable structural strength.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that modifications and embellishments may be made by those skilled in the art without departing from the principles of the present invention and are considered within the scope of the invention.
Claims (11)
1. The utility model provides a connecting piece (4) for battery box, its is used for connecting box frame (1) and box roof beam (2), its characterized in that, connecting piece (4) are including first connecting portion (41) and second connecting portion (42), box frame (1) fixed connection of first connecting portion (41) and battery box, second connecting portion (42) and box roof beam (2) fixed connection of battery box, first connecting portion (41) be equipped with junction (43) that the link of second connecting portion is connected, the projection of junction (43) on box frame (1) side is close to strengthening rib (3) of box frame (1).
2. The connecting element (4) according to claim 1, wherein the box frame (1) is provided with a first hollow cavity (111), the reinforcing rib (3) is provided in the first hollow cavity (111), and the reinforcing rib (3) divides the first hollow cavity (111) into at least two hollow cavities.
3. The connecting element (4) according to claim 1, wherein the second connecting portion (42) extends into a second hollow cavity (211) of the box girder (2), the end of the second connecting portion (42) extending into being fixedly connected to the box girder (2).
4. A connecting element (4) according to claim 3, wherein the second connecting portion (42) is securely connected to the box beam (2) by means of a first locking element (81).
5. The connecting element (4) according to any one of claims 1 to 4, wherein the second connecting portion (42) is of one-piece construction with the first connecting portion (41).
6. A connecting element (4) according to any of claims 1 to 4, characterized in that said junction (43) is located in the middle of said first connection (41), said first connection (41) being lockingly connected to said box border (1) by means of a second locking element (82), said second locking element (82) being located on either side of said junction (43).
7. The connecting element (4) according to any one of claims 1 to 4, characterised in that the second connecting portions (42) are provided in two, both second connecting portions (42) being inserted into a second hollow cavity (211) in the box girder (2), and a reinforcing partition (5) in the box girder (2) being clamped between the two second connecting portions (42).
8. The connecting element (4) according to claim 7, wherein the connecting ends of the two second connecting portions (42) are each provided with a bevel (6) inclined in the direction of the reinforcing bars (3) in the box frame (1) so that the connection (43) is close to the reinforcing bars (3) in the box frame (1).
9. The connecting element (4) according to claim 7, characterized in that the end of each second connecting portion (42) facing the side of the reinforcing baffle (5) is provided with a chamfer (7).
10. The connecting element (4) according to claim 7, wherein the reinforcing baffle (5) in the box girder (2) is opposite to the reinforcing rib (3) in the box frame (1), the two second connecting portions (42) correspond to the two connecting portions (43), and the two connecting portions (43) are respectively positioned at the upper and lower parts of the reinforcing baffle (5).
11. A battery pack, comprising the connecting member (4) for a battery box according to any one of claims 1 to 10, and further comprising a box frame (1) and a box beam (2), wherein the box frame (1) and the box beam (2) are fixedly connected by the connecting member (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222491424.5U CN218602599U (en) | 2022-09-20 | 2022-09-20 | Connecting piece for battery box and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222491424.5U CN218602599U (en) | 2022-09-20 | 2022-09-20 | Connecting piece for battery box and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218602599U true CN218602599U (en) | 2023-03-10 |
Family
ID=85400568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222491424.5U Active CN218602599U (en) | 2022-09-20 | 2022-09-20 | Connecting piece for battery box and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218602599U (en) |
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2022
- 2022-09-20 CN CN202222491424.5U patent/CN218602599U/en active Active
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