CN217589256U

CN217589256U - Battery pack box structure and battery pack

Info

Publication number: CN217589256U
Application number: CN202221733573.1U
Authority: CN
Inventors: 宋亮亮; 闵忠国; 孙永刚; 吴清平; 陈洪亮
Original assignee: Neusoft Reach Automotive Technology Shenyang Co Ltd
Current assignee: Neusoft Reach Automotive Technology Shenyang Co Ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-10-14
Anticipated expiration: 2032-07-05

Abstract

The utility model provides a battery package box structure and battery package relates to new energy automobile technical field, the utility model provides a battery package box structure includes drain pan, embedded subassembly, end beam and coupling assembling, the embedded subassembly cartridge in the drain pan and with form between the drain pan and be used for injecing the embedded subassembly for the interpolation structure of drain pan position, the end beam is located the outside of drain pan, coupling assembling with end beam and embedded subassembly locking and with embedded subassembly and drain pan locking. The utility model provides a battery package box structure assembly simple process, processing cycle is short, need not to carry out processing technology such as welding, has reduced the quality problems that heat altered shape causes, welding jig's development cost, has better performance.

Description

Battery pack box structure and battery pack

Technical Field

The utility model belongs to the technical field of the new energy automobile technique and specifically relates to a battery package box structure and battery package are related to.

Background

The battery PACK box in the PACK battery system plays a role in the sealing performance and the mechanical performance of the system, but the manufacturing and processing processes of the box in the market at present are complex, the conventional processes of welding, riveting, gluing, CNC (computer Numerical Control), rotary tapping, riveting and the like are required to be used simultaneously, multiple processing devices are required to be arranged by adopting excessive processing processes, and the assembly operation needs to be carried out on each processing station in sequence, so that the processing period is long, the cost is high, and the possibility of quality defects generated by the more processes is high, and the service performance of the box structure is influenced.

Therefore, how to provide a battery pack case structure capable of solving at least one of the above problems is one of the technical problems to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery package box structure, assembly simple process, processing cycle is short, has better performance. In addition, a battery pack comprising the battery pack box body structure is provided.

In order to achieve the above object, the utility model provides a following technical scheme:

in a first aspect, the utility model provides a battery package box structure, including drain pan, embedded subassembly, end beam and coupling assembling, the embedded subassembly cartridge in the drain pan and with form between the drain pan and be used for injecing the embedded subassembly for the interpolation structure of drain pan position, the end beam is located the outside of drain pan, coupling assembling will the end beam with embedded subassembly locking and will the embedded subassembly with the drain pan locking.

Further, the bottom shell comprises a bottom frame and side frames positioned on two sides of the bottom frame, the embedded component is inserted into the end portions of the bottom frame and the side frames and forms the opposite insertion structure with the bottom frame and/or the side frames, and the bottom frame and the side frames have an integrated structure.

Further, embedded subassembly includes embedded piece and sealed pad, the embedded piece cartridge in the drain pan and with form between the drain pan the interpolation structure, sealed pad clamp is located the embedded piece with between the end beam.

Further, one of the insert and the end beam has a groove for receiving the gasket.

Furthermore, one of the embedded block and the bottom shell is provided with a rib plate, the other one of the embedded block and the bottom shell is provided with a limiting groove which is inserted into the rib plate, and the rib plate and the limiting groove form the opposite insertion structure.

Furthermore, the limiting groove is formed in the end face, deviating from the end beam, of the embedded block, and the limiting groove penetrates through the top face and the bottom face of the embedded block.

Furthermore, the bottom shell is internally provided with the rib plate, and the rib plate is perpendicular to the end face of the bottom shell.

Furthermore, a distance is reserved between the end face of the rib plate and the end face of the bottom shell on the same side, and the distance is equal to the distance between the bottom face of the limiting groove and the end face of the embedded block facing the end beam.

Further, coupling assembling includes first bolt and second bolt, first bolt with the end beam with embedded subassembly locking, the second bolt with embedded subassembly with drain pan locking.

In a second aspect, the present invention further provides a battery pack, which comprises the above-mentioned solution.

The utility model provides a battery package box structure and battery package can produce following beneficial effect:

during assembly, at first through the cartridge that realizes embedded subassembly and drain pan to the plug-in structure, embedded subassembly obtains preliminary spacing, uses coupling assembling afterwards to lock the end beam from the outside of drain pan with embedded subassembly and drain pan locking can.

Compared with the prior art, the utility model provides an among the battery package box structure, add between drain pan and the end beam and be equipped with embedded subassembly to only just can realize the assembly of box structure through coupling assembling, assembly process is simple, and processing cycle is short, need not to carry out processing technology such as welding, has reduced the quality problems that thermal deformation causes, welding jig's development cost, has better performance.

The utility model discloses the battery package that the second aspect provided has the utility model discloses the battery package box structure that the first aspect provided, thereby have the utility model discloses all beneficial effect that the battery package box structure that the first aspect provided had.

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 prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an exploded view of a battery pack case structure according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

fig. 3 is an exploded view of a battery pack case structure (one side without an end beam and a connecting assembly) according to an embodiment of the present invention;

fig. 4 is an enlarged schematic view of B of fig. 3.

Icon: 1-a bottom shell; 11-the bottom frame; 12-side frame; 13-rib plate; 2-an inline component; 21-an embedded block; 211-grooves; 212-a limiting groove; 22-a gasket; 3-end beam; 4-a connecting assembly; 41-a first bolt; 42-second bolt.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It should be understood that the description herein is provided for illustration and explanation of the invention and is not intended to limit the invention.

An embodiment of the first aspect of the utility model provides a battery pack box structure, as shown in fig. 1 and fig. 2, including drain pan 1, embedded subassembly 2, end beam 3 and coupling assembling 4, embedded subassembly 2 cartridge in drain pan 1 and with drain pan 1 between form be used for injecing embedded subassembly 2 for the interpolation structure of drain pan 1 position, end beam 3 is located the outside of drain pan 1, coupling assembling 4 with end beam 3 and embedded subassembly 2 locking and with embedded subassembly 2 and drain pan 1 locking.

The above-mentioned insertion structure can be understood as that the embedded component 2 is inserted into the bottom case 1.

During assembly, embedded component 2 and drain pan 1 adopt the connected mode of cartridge, do not need extra auxiliary connection device, and the operation is convenient, after that, end beam 3 passes through coupling assembling 4 and embedded component 2 locking, embedded component 2 passes through coupling assembling 4 and drain pan 1 locking, therefore whole assembling process only need adopt coupling assembling 4 to realize drain pan 1, embedded component 2 and end beam 3's locking can, do not need to use other connection technology such as welding, the assembly process is simple, the processing cycle is short, and because the connection technology who uses is less, can effectively reduce the quality problems that the factor such as heat altered shape that leads to because of the welding causes.

As shown in fig. 1, the left end and the right end of the bottom case 1 are mirror symmetric structures, that is, the left end of the bottom case 1 is equipped with the embedded component 2, the end beam 3 and the connecting component 4, and the right end of the bottom case 1 is also equipped with the embedded component 2, the end beam 3 and the connecting component 4, so that for saving space, the following embodiment will be described in detail by taking the assembling structure of the right end of the bottom case 1 as an example, and the assembling structure of the left end of the bottom case 1 is the same.

In some embodiments, as shown in fig. 1, the bottom case 1 includes a bottom frame 11 and side frames 12 located at two sides of the bottom frame 11, and the bottom frame 11 and the side frames 12 have an integrated structure. The bottom frame 11 and the side frame 12 can be integrated into a whole through the arrangement, the bottom frame 11 and the side frame 12 do not need to be connected during assembly, the number of parts of the box body is reduced, the connecting structure is reduced, the assembly process is simplified, and the processing period is shortened.

Specifically, the bottom case 1 and the side frame 12 may be integrally extruded.

In addition, the cross section of the bottom case 1 may be in a shape of Chinese character 'ao', both sides of the shape of Chinese character 'ao' are side frames 12, and the bottom end of the shape of Chinese character 'ao' is a bottom frame 11.

The embedded component 2 can be inserted into the ends of the bottom frame 11 and the side frames 12 and forms an inserted structure with the bottom frame 11 or the side frames 12. In at least one embodiment, the insert assembly 2 forms an inset structure with the base frame 11 and side frame 12.

In some embodiments, as shown in fig. 2, in order to ensure the sealing performance between the embedded component 2 and the end beam 3, the embedded component 2 includes an embedded block 21 and a sealing gasket 22, the embedded block 21 is inserted into the end portion of the bottom case 1 and forms an opposite insertion structure with the bottom case 1, and the sealing gasket 22 is inserted between the embedded block 21 and the end beam 3, so that the gap between the embedded block 21 and the end beam 3 can be compensated through the deformation of the sealing gasket 22, thereby performing the sealing function.

Specifically, one of the insert 21 and the end beam 3 has a groove 211 for receiving the sealing gasket 22. Above-mentioned setting can be followed the thickness direction of sealed pad 22 on the one hand and reduced the size of battery package box structure, and on the other hand accessible adjustment is sealed the thickness of pad 22 for sealed pad 22 just can all be held in recess 211 under the circumstances of pressurized, avoids sealed pad 22 to expose, thereby makes more pleasing to the eye of battery package box.

In at least one embodiment, as shown in fig. 2, the end face of the inner insert 21 facing the end beam 3 is recessed with a groove 211.

The following description specifically explains the insertion structure of the inner insert 21 and the bottom case 1:

in some embodiments, one of the embedded block 21 and the bottom case 1 has a rib plate 13, and the other has a limiting groove 212 inserted into the rib plate 13, and the rib plate 13 can be inserted into the internal limiting groove 212 to form an insertion structure with the limiting groove 212.

In the following embodiments, the rib plate 13 is disposed on the bottom case 1, and the limiting groove 212 is disposed on the inner insert 21, which can be specifically described with reference to fig. 1 to 4.

In some embodiments, as shown in fig. 2, a limiting groove 212 is formed in an end surface of the embedded block 21 away from the end beam 3, the limiting groove 212 penetrates through a top surface and a bottom surface of the embedded block 21, and the limiting groove 212 can limit a position of the embedded block 21 relative to the bottom case 1 through insertion with the rib plate 13, so that preliminary limiting of the embedded block 21 is achieved.

The outer surface of the embedded block 21 can be matched with the inner surface of the bottom shell 1, so that the embedded block 21 can block the end of the bottom shell 1, and the connection stability and the sealing performance of the embedded block and the bottom shell are ensured.

On the basis that the embedded block 21 is provided with the limiting groove 212, the bottom shell 1 is internally provided with a rib plate 13, and the rib plate 13 is vertical to the end face of the bottom shell 1.

It will be understood that the end face of the bottom shell 1 is the end face of the bottom shell 1 opposite the end beams 3 in fig. 2.

When the assembly, can with embedded block 21 in the opening propulsion drain pan 1 of drain pan 1 tip, gusset 13 in the drain pan 1 stretches into in the spacing groove 212, when the tip of gusset 13 offsets with the bottom of spacing groove 212, embedded block 21 can't reentrant, thereby inject the depth that embedded block 21 stretched into drain pan 1, along the planar direction in perpendicular to gusset 13 place simultaneously, the removal of embedded block 21 can be injectd to gusset 13, thereby play preliminary spacing effect to embedded block 21, be convenient for use coupling assembling 4 to lock embedded block 21 and drain pan 1 afterwards.

The number of the rib plates 13 on the bottom shell 1 may be one, or two, three, four, five, etc., and correspondingly, the limiting groove 212 on the embedded block 21 may be configured as one, or configured as two, three, four, five, etc., multiple. The rib 13 may be perpendicular to the top surface of the bottom case 1 as shown in fig. 4, or may form an angle different from 90 ° with the top surface of the bottom case 1.

In at least one embodiment, the rib plates 13 are perpendicular to the top surface of the bottom case 1, and to ensure the accuracy of the preliminary limit, the rib plates 13 are configured in a plurality, and when the bottom case 1 includes the bottom frame 11 and the side frames 12, the rib plates 13 are provided in both the bottom frame 11 and the side frames 12.

In some embodiments, in order to enable the internal insert 21 to be just accommodated in the end portion of the bottom case 1, as shown in fig. 2, a distance is provided between the end surface of the rib plate 13 and the end surface of the bottom case 1 on the same side, that is, a distance is provided between the end surface of the rib plate 13 facing the end beam 3 and the end surface of the bottom case 1 facing the end beam 3, where the distance is equal to a distance between the bottom surface of the limiting groove 212 and the end surface of the internal insert 21 facing the end beam 3, so that when the rib plate 13 just abuts against the bottom surface of the limiting groove 212, the right end portion of the internal insert 21, which is not penetrated by the limiting groove 212, is just accommodated in the bottom case 1, the structure of the internal insert 21 is not exposed, and the structure of the battery pack case is more beautiful.

The connecting assembly 4 of the above embodiment can be used as a structure capable of locking the end beam 3 with the embedded assembly 2 and locking the embedded assembly 2 with the bottom shell 1. For example: the connecting assembly 4 may comprise a screw, or the connecting assembly 4 may comprise a pin or the like.

In some embodiments, as shown in fig. 2, the connecting assembly 4 comprises a first bolt 41 and a second bolt 42, the first bolt 41 locks the end beam 3 with the embedded assembly 2, and the second bolt 42 locks the embedded assembly 2 with the bottom shell 1.

Specifically, the end beam 3 has a first connecting hole, the sealing pad 22 has a second connecting hole, and the bottom case has a third connecting hole. The first bolt 41 can penetrate through the first connecting hole from one end of the end beam 3 departing from the sealing gasket 22, and then penetrate through the second connecting hole in the sealing gasket 22 to be screwed into the inner embedded block 21, so that the end beam 3 and the inner embedded block 21 are locked, and the sealing gasket 22 is in a compressed state; the second bolt 42 can penetrate through the third connecting hole on the top wall of the bottom shell 1 and then be screwed into the embedded block 21, so that the bottom shell 1 and the embedded block 21 are locked.

The connecting component 4 adopts a threaded connection mode, the mechanical strength and the fatigue strength of the connecting component are stronger than those of welding, and the safety and reliability of parts are improved.

Specifically, the first bolts 41 and the second bolts 42 are provided in plural numbers to enhance the connection firmness among the bottom case 1, the embedded component 2, and the end beam 3, and the specific number and the position distribution can be adjusted according to actual conditions.

The embodiment of the second aspect of the utility model provides a battery pack, the utility model discloses the embodiment of the second aspect provides a battery pack includes above-mentioned battery pack box structure.

The utility model discloses the battery package that the second aspect provided has the utility model discloses the battery package box structure that the embodiment of the first aspect provided, thereby has the utility model discloses all beneficial effects that the battery package box structure that the embodiment of the first aspect provided had.

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

1. The utility model provides a battery package box structure, characterized in that, includes drain pan (1), embedded subassembly (2), end roof beam (3) and coupling assembling (4), embedded subassembly (2) cartridge in drain pan (1) and with form between drain pan (1) and be used for injecing embedded subassembly (2) for the structure of inserting of drain pan (1) position, end roof beam (3) are located the outside of drain pan (1), coupling assembling (4) will end roof beam (3) with embedded subassembly (2) locking and with embedded subassembly (2) with drain pan (1) locking.

2. The battery pack case structure according to claim 1, wherein the bottom case (1) comprises a bottom frame (11) and side frames (12) located at two sides of the bottom frame (11), the embedded component (2) is inserted into the ends of the bottom frame (11) and the side frames (12) and forms the insertion structure with the bottom frame (11) and/or the side frames (12), and the bottom frame (11) and the side frames (12) have an integral structure.

3. The battery pack box structure according to claim 1, wherein the embedded component (2) comprises an embedded block (21) and a sealing gasket (22), the embedded block (21) is inserted into the bottom case (1) and forms the opposite insertion structure with the bottom case (1), and the sealing gasket (22) is inserted between the embedded block (21) and the end beam (3).

4. A battery pack case structure according to claim 3, wherein one of the insert block (21) and the end beam (3) has a groove (211) for receiving the sealing gasket (22).

5. The battery pack box structure according to claim 3, wherein one of the embedded block (21) and the bottom case (1) is provided with a rib plate (13), the other is provided with a limiting groove (212) inserted into the rib plate (13), and the rib plate (13) and the limiting groove (212) form the insertion structure.

6. The battery pack box structure according to claim 5, wherein the limiting groove (212) is formed in the end face of the embedded block (21) away from the end beam (3), and the limiting groove (212) penetrates through the top face and the bottom face of the embedded block (21).

7. The battery pack box structure according to claim 6, wherein the rib plate (13) is arranged in the bottom shell (1), and the rib plate (13) is perpendicular to the end surface of the bottom shell (1).

8. The battery pack box structure according to claim 7, wherein a distance is provided between the end surface of the rib plate (13) and the end surface of the bottom case (1) on the same side, and the distance is equal to a distance between the bottom surface of the limiting groove (212) and the end surface of the inner insert (21) facing the end beam (3).

9. Battery pack case structure according to one of claims 1 to 8, characterized in that the connection assembly (4) comprises a first bolt (41) and a second bolt (42), the first bolt (41) locking the end beam (3) with the insert assembly (2) and the second bolt (42) locking the insert assembly (2) with the bottom shell (1).

10. A battery pack comprising the battery pack case structure according to any one of claims 1 to 9.