CN212136538U - Battery pack and electric automobile - Google Patents
Battery pack and electric automobile Download PDFInfo
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- CN212136538U CN212136538U CN202021119087.1U CN202021119087U CN212136538U CN 212136538 U CN212136538 U CN 212136538U CN 202021119087 U CN202021119087 U CN 202021119087U CN 212136538 U CN212136538 U CN 212136538U
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- sleeve
- beam body
- battery pack
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- roof beam
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Abstract
The utility model provides a battery package and electric automobile relates to the technical field of battery package. The battery pack comprises a lower box body and a sleeve, a hollow beam body is arranged on the lower box body, the sleeve penetrates through the upper wall and the lower wall of the beam body, a cavity rib extending along the length direction of the beam body is arranged inside the beam body, the battery pack comprises a connecting structure, and the sleeve is connected with the cavity rib through the connecting structure. When sleeve and roof beam body installation, utilize connection structure earlier to be connected sleeve and the internal chamber muscle of roof beam to fix sleeve and roof beam body, the two is static relatively, when welding sleeve and roof beam body again, sleeve and roof beam body are drawn back each other, can effectually prevent sleeve and roof beam body to take place deformation, ensure that telescopic position degree is more accurate, reprocess, scrap phenomenon obviously reduces.
Description
Technical Field
The utility model belongs to the technical field of the technique of battery package and specifically relates to a battery package and electric automobile are related to.
Background
The battery pack is a main carrier of the electric automobile, and mainly plays a role in providing a mounting structure for each system element inside the battery pack and protecting each component.
The battery pack is mostly fixed on a vehicle bottom plate in a hanging mode, and hanging points of the battery pack are arranged on the periphery of a lower box body of the battery pack and on a middle beam body and are fixedly connected with the bottom plate through the hanging points. The beam body of the existing battery pack is provided with a through hole, a sleeve is embedded into the through hole and used for enabling a connecting bolt to penetrate through, and the connecting bolt is used for connecting the battery pack with a vehicle bottom plate to form a hanging point so that the battery pack is hung on the vehicle bottom plate.
In current battery package, the sleeve adopts the welded mode to be connected with the roof beam body, and telescopic lateral wall welds with the upper wall of the roof beam body and the lower wall of the roof beam body, and the welding back roof beam body can take place to warp with the sleeve, and when battery package follow-up assembly, this deformation can enlarge gradually, causes secondary deformation, and the installation accuracy of battery package can't guarantee, and follow-up existence is reprocessed, the scrapped phenomenon even.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery package and electric automobile to alleviate current battery package man-hour, the welding back roof beam body can take place to warp with the sleeve, when the follow-up assembly of battery package, should warp and can enlarge gradually, causes secondary deformation, and the installation accuracy of battery package can't be guaranteed, and follow-up existence is reprocessed, scrapped phenomenon even.
In a first aspect, an embodiment of the present invention provides a battery pack, the battery pack includes: the battery pack comprises a lower box body and a sleeve, wherein a hollow beam body is arranged on the lower box body, the sleeve penetrates through the upper wall and the lower wall of the beam body, a cavity rib extending along the length direction of the beam body is arranged inside the beam body, the battery pack comprises a connecting structure, and the sleeve is connected with the cavity rib through the connecting structure.
Furthermore, the connecting structures are multiple and are uniformly distributed on the peripheral side of the sleeve.
Furthermore, the number of the connecting structures is two, the two connecting structures are arranged at intervals along the length direction of the beam body, and the two connecting structures are symmetrical relative to the sleeve.
Further, the connecting structure comprises a thread structure arranged on the cavity rib, and the thread structure is provided with an internal thread hole;
the connecting structure comprises a locking bolt and a wing plate which is arranged on the outer wall of the sleeve and extends outwards along the radial direction of the sleeve, a through hole penetrating through the upper surface and the lower surface of the wing plate is formed in the wing plate, and the locking bolt is used for penetrating through the through hole and is in threaded connection with the threaded structure.
Further, the thread structure is a nut connected with the cavity rib.
Further, the nut is a rivet nut.
Furthermore, the wing plate is located in the middle of the sleeve, the wing plate is welded to the upper wall of the beam body, and the side wall of the sleeve is welded to the lower wall of the beam body.
Furthermore, the wing plate is located at the bottom end of the sleeve, the wing plate is welded to the lower wall of the beam body, and the outer wall of the sleeve is welded to the upper wall of the beam body.
Furthermore, be provided with on the pterygoid lamina towards the convex location boss of roof beam body, be provided with on the upper wall of the roof beam body or the lower wall with the positioning groove that the boss corresponds is fixed a position, the boss with positioning groove can the joint, so that the through-hole with the internal thread hole aligns.
In a second aspect, an embodiment of the present invention provides an electric vehicle, which includes the above-mentioned battery pack.
An embodiment of the utility model provides a battery package includes box and sleeve down, be provided with the hollow roof beam body down on the box, the sleeve runs through the upper wall and the lower wall of the roof beam body, the internal portion of roof beam is provided with the chamber muscle that extends along its length direction, battery package includes connection structure, the sleeve with the chamber muscle passes through connection structure connects. When sleeve and roof beam body installation, utilize connection structure earlier to be connected sleeve and the internal chamber muscle of roof beam to fix sleeve and roof beam body, the two is static relatively, when welding sleeve and roof beam body again, sleeve and roof beam body are drawn back each other, can effectually prevent sleeve and roof beam body to take place deformation, ensure that telescopic position degree is more accurate, reprocess, scrap phenomenon obviously reduces.
The embodiment of the utility model provides an electric automobile, electric automobile includes foretell battery package. Because the embodiment of the utility model provides an electric automobile has quoted foretell battery package, so, the embodiment of the utility model provides an electric automobile also possesses the advantage of battery package.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a lower box of a battery pack according to an embodiment of the present invention;
fig. 2 is a schematic view of a sleeve of a battery pack according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of the battery pack provided by the embodiment of the present invention after the sleeve is connected to the beam.
Icon: 110-an upper wall; 120-lower wall; 130-cavity ribs; 200-a sleeve; 210-wing plate; 211-positioning bosses; 300-locking bolts; 400-pulling rivet nut.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the embodiment of the present invention provides a battery pack, which includes a lower box body and a sleeve 200, a hollow beam body is provided on the lower box body, the sleeve 200 runs through the upper wall 110 and the lower wall 120 of the beam body, a cavity rib 130 extending along the length direction of the beam body is provided inside the beam body, the number of the cavity ribs 130 is multiple from the upper wall 110 to the lower wall 120 of the beam body, and in this embodiment, the number of the cavity ribs 130 is two.
The main difference from the prior art is that: the battery pack includes a connection structure through which the sleeve 200 is connected with the cavity rib 130.
The sleeve 200 is connected with the cavity rib 130 of the beam body through the connecting structure, so that the sleeve 200 is fixedly connected with the middle part of the beam body, and thus the connecting structure plays a role in restraining when the sleeve 200 is welded with the upper wall 110 and the lower wall 120 of the beam body respectively. When sleeve 200 and roof beam body installation, utilize connection structure to be connected sleeve 200 and internal chamber muscle 130 of roof beam earlier to fix sleeve 200 and roof beam body, the two is static relatively, when welding sleeve 200 and roof beam body, sleeve 200 and roof beam body are drawn back each other, can effectually prevent sleeve 200 and roof beam body to take place deformation, ensure that sleeve 200's position degree is more accurate, reprocess, scrap phenomenon obviously reduces.
The connecting structures are a plurality of, and a plurality of connecting structures are evenly distributed on the peripheral side of the sleeve 200.
In order to make the connection between the sleeve 200 and the beam body more firm, the number of the connecting structures may be multiple, the multiple connecting structures are uniformly arranged on the periphery of the sleeve 200, the stress of the multiple connecting structures between the sleeve 200 and the beam body is even, and the problem of fracture caused by uneven stress of a certain connecting structure is not easy to occur.
In this embodiment, the number of the connecting structures is two, the two connecting structures are arranged at intervals along the length direction of the beam body, and the two connecting structures are symmetrical relative to the sleeve 200. Because the beam body is strip-shaped, two connecting structures are arranged in the length direction of the beam body, and the space on the beam body can be fully utilized.
The connection structure includes a thread structure provided on the cavity rib 130, the thread structure having an internal thread hole; the connecting structure comprises a locking bolt 300 and a wing plate which is arranged on the outer wall of the sleeve and extends outwards along the radial direction of the sleeve, a through hole penetrating through the upper surface and the lower surface of the wing plate 210 is arranged on the wing plate, and the locking bolt 300 is used for penetrating through the through hole and being in threaded connection with the threaded structure.
During the installation, can insert sleeve 200 on the roof beam body earlier, then with through-hole and internal thread hole alignment, with in locking bolt 300 along through-hole screw in to internal thread hole, screw up the back, can make sleeve 200, roof beam body and locking bolt 300 three relatively fixed.
In one embodiment, the through hole of the wing plate 210 is a threaded hole, and the locking bolt 300 is first screwed into the through hole of the wing plate 210, and then the screwed-out portion is screwed into the threaded structure of the cavity rib 130.
In another embodiment, the inner wall of the through hole of the wing plate 210 has no thread, and the head of the locking bolt 300 is abutted against the wing plate 210 by completely screwing the locking bolt 300 into the internal thread hole in the thread structure, so that the wing plate 210, the beam body and the locking bolt 300 can be relatively fixed.
The threaded structure is a nut connected to the cavity rib 130. The thread structure matched with the locking bolt 300 may be a nut, and the nut and the cavity rib 130 are fixedly connected and may be connected in a welding manner.
Besides the arrangement mode of the thread structure, the following modes can be adopted: in the direction from the upper wall 110 to the lower wall 120 of the beam body, the cavity rib 130 has a certain thickness, and a screw hole can be directly formed on the cavity rib 130.
The nut may be a blind rivet nut 400.
In the embodiment, the nut is a blind rivet nut 400, and can be riveted at one time by using a pneumatic or manual blind rivet gun, so that the nut is convenient and firm; compared with a welded nut, the welding nut overcomes the defects of thin metal plates, easy welding, unsmooth welded nut and the like.
In one implementation of this embodiment, the wing plate 210 is located at the middle position of the sleeve 200, the wing plate 210 is welded to the upper wall 110 of the beam, and the side wall of the sleeve 200 is welded to the lower wall 120 of the beam. The wing plate 210 is located at the middle position of the sleeve 200, and is inserted into the sleeve 200 from top to bottom, the wing plate 210 is flush with the upper wall 110 of the beam body, and the lower end of the sleeve 200 extends to the lower wall 120 of the beam body. The wing plate 210 is fixedly connected with the cavity rib 130 by the locking bolt 300, and then the wing plate 210 is welded with the upper wall 110 of the beam body by the welding tool, and the bottom end side wall of the sleeve 200 is welded with the lower wall 120 of the beam body.
Depending on the shape of the battery pack and the sleeve 200, the wing plate 210 may be disposed on the outer wall of the bottom end of the sleeve 200, the wing plate 210 is welded to the lower wall 120 of the beam, and the outer wall of the sleeve 200 is welded to the upper wall 110 of the beam. The installation method is the same as the above embodiment, and is not described herein again.
On one hand, due to the arrangement of the wing plate 210, when the wing plate 210 and the beam body are welded along the edge of the wing plate 210, the welding area is increased, and the connection firmness of the sleeve 200 and the beam body is increased; on the other hand, the wing plate 210 is connected with the cavity rib 130 through the connecting structure, the upper wall 110, the cavity rib 130 and the lower wall 120 of the beam body are fixedly connected with the sleeve 200, so that the sleeve 200 does not bear a force by the upper wall and the lower wall of the beam body, the stress distribution of the sleeve 200 is improved, the stress of the sleeve is reasonable, a welding seam between the sleeve 200 and the beam body is not easy to crack, and the service life is longer.
The wing plate 210 is provided with a positioning boss 211 protruding towards the beam body, the upper wall 110 or the lower wall 120 of the beam body is provided with a positioning clamping groove corresponding to the positioning boss, and the positioning boss 211 and the positioning clamping groove can be clamped to enable the through hole to be aligned to the internal thread hole.
In this embodiment, adopt from top to bottom mode to peg graft sleeve 200 on the roof beam body, the size phase-match of location boss 211 and draw-in groove, the cross-section of location boss 211 can be the rectangle to can ensure that the through-hole on pterygoid lamina 210 aligns with rivet nut 400 when location boss 211 inserts the draw-in groove, make things convenient for locking bolt 300 to connect pterygoid lamina 210 and chamber muscle 130.
The embodiment of the utility model provides an electric automobile, electric automobile includes foretell battery package. Because the embodiment of the utility model provides an electric automobile has quoted foretell battery package, so, the embodiment of the utility model provides an electric automobile also possesses the advantage of battery package.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A battery pack, the battery pack comprising: the battery pack comprises a lower box body and a sleeve (200), wherein a hollow beam body is arranged on the lower box body, the sleeve (200) penetrates through an upper wall (110) and a lower wall (120) of the beam body, and the battery pack is characterized in that a cavity rib (130) extending along the length direction of the beam body is arranged inside the beam body, the battery pack comprises a connecting structure, and the sleeve (200) is connected with the cavity rib (130) through the connecting structure.
2. The battery pack according to claim 1, wherein the connecting structure is plural, and the plural connecting structures are uniformly distributed on the peripheral side of the sleeve (200).
3. The battery pack according to claim 2, wherein the connecting structures are two, the two connecting structures are spaced apart along the length direction of the beam body, and the two connecting structures are symmetrical with respect to the sleeve (200).
4. The battery pack of claim 1, wherein the connecting structure comprises a threaded structure provided on the cavity rib (130), the threaded structure having an internally threaded bore;
the connecting structure comprises a locking bolt (300) and a wing plate which is arranged on the outer wall of the sleeve and extends outwards along the radial direction of the sleeve, a through hole penetrating through the upper surface and the lower surface of the wing plate (210) is formed in the wing plate, and the locking bolt (300) is used for penetrating through the through hole and being in threaded connection with the threaded structure.
5. The battery pack of claim 4, wherein the threaded structure is a nut coupled to the cavity rib (130).
6. The battery pack of claim 5, wherein the nut is a blind rivet nut (400).
7. The battery pack according to claim 4, wherein the wing (210) is located at a middle position of the sleeve (200), the wing (210) is welded to the upper wall (110) of the beam, and the side wall of the sleeve (200) is welded to the lower wall (120) of the beam.
8. The battery pack of claim 4, wherein the tabs (210) are located at the bottom end of the sleeve (200), the tabs (210) being welded to the lower wall (120) of the beam, and the outer wall of the sleeve (200) being welded to the upper wall (110) of the beam.
9. The battery pack according to claim 4, wherein the wing plate (210) is provided with a positioning boss (211) protruding toward the beam body, the upper wall (110) or the lower wall (120) of the beam body is provided with a positioning slot corresponding to the positioning boss, and the positioning boss (211) and the positioning slot can be clamped to align the through hole with the internal threaded hole.
10. An electric vehicle, characterized in that it comprises a battery pack according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021119087.1U CN212136538U (en) | 2020-06-16 | 2020-06-16 | Battery pack and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021119087.1U CN212136538U (en) | 2020-06-16 | 2020-06-16 | Battery pack and electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN212136538U true CN212136538U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021119087.1U Active CN212136538U (en) | 2020-06-16 | 2020-06-16 | Battery pack and electric automobile |
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| Country | Link |
|---|---|
| CN (1) | CN212136538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114267917A (en) * | 2021-11-26 | 2022-04-01 | 浙江零跑科技股份有限公司 | Vehicle body and battery pack integrated mounting point structure |
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2020
- 2020-06-16 CN CN202021119087.1U patent/CN212136538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114267917A (en) * | 2021-11-26 | 2022-04-01 | 浙江零跑科技股份有限公司 | Vehicle body and battery pack integrated mounting point structure |
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