Middle frame for double-space energy storage device

Abstract

The utility model relates to the technical field of energy storage devices, in particular to a double-space middle frame for an energy storage device, which comprises a first frame body and a second frame body, the first frame body and the second frame body are both of hollow structures, one side of the second frame body is provided with an opening, and two ends of one side of the first frame body are respectively provided with a positioning plate. The outer walls of the two sides of the opening of the second frame abut against the two positioning plates correspondingly and then are fixed through welding. According to the utility model, through the arrangement of the positioning plate, the first frame body and the second frame body can be quickly positioned and then welded after being respectively formed, so that the manufacturing efficiency is favorably improved, and the positioning accuracy between the first frame body and the second frame body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage devices, in particular to a middle frame for a double-space energy storage device. Background Art

[0002] Currently, commonly used energy storage devices are typically batteries, an essential component of electrical devices such as electric vehicles and trams. To locate and protect these energy storage devices, a common approach is to install an energy storage housing within the electrical device.

[0003] Existing energy storage housings are mostly composed of a middle frame and a top cover. The middle frame is mounted to the electrical device, and the electrical device and the top cover close the two openings of the middle frame. However, existing middle frames have the following shortcomings: Due to defects in existing processes, it is difficult to produce a high-strength dual-space middle frame, or very complex processes are required to achieve it. Summary of the Invention

[0004] In view of the problems of the prior art, the utility model provides a middle frame for a double-space energy storage device, which can be quickly manufactured and ensures high strength and precise positioning.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The utility model provides a middle frame for a dual-space energy storage device, comprising a first frame body and a second frame body, both of which are hollow structures. One side of the second frame body has an opening, and positioning plates are respectively provided at both ends of one side of the first frame body. The outer walls on both sides of the opening of the second frame body respectively contact the two positioning plates and are fixed by welding.

[0007] Furthermore, the outer side wall of the second frame body is provided with a limiting portion, and the limiting portion is used to interfere with the positioning plate.

[0008] Furthermore, a supporting portion is provided between the positioning plate and the first frame body. The supporting portion and the first frame body are vertically arranged to each other, and the supporting portion is used to abut against the second frame body.

[0009] Furthermore, an end of the supporting portion that abuts against the second frame body and an end of the second frame body that abuts against the supporting portion are respectively provided with inclined surfaces.

[0010] Furthermore, a recessed portion is provided at a corner of the first frame, wherein a positioning plate is provided in the recessed portion; and a screw hole is provided in the recessed portion.

[0011] Furthermore, the outer side wall of the first frame body and the outer side wall of the second frame body are respectively provided with a plurality of protrusions, and the protrusions are provided with screw holes.

[0012] Furthermore, the inner side wall of the first frame body and the inner side wall of the second frame body are respectively provided with reinforcing ribs, and the reinforcing ribs are provided with screw holes.

[0013] Furthermore, the first frame and the second frame are integrally formed by stamping / CNC respectively.

[0014] Furthermore, the two positioning plates are provided with positioning grooves on the opposite sides thereof, and the second frame body is provided with positioning protrusions for inserting into the positioning grooves. The outer surface of the positioning protrusions is an arc surface, and the shape of the positioning grooves is adapted to the shape of the positioning protrusions.

[0015] Beneficial effects of the present invention: Through the provision of the positioning plate, the present invention enables the first frame and the second frame to be quickly positioned and welded after being formed, which is beneficial to improving production efficiency and ensuring accurate positioning between the first frame and the second frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model.

[0017] Figure 2 for Figure 1 Enlarged view of point A.

[0018] Figure 3 This is a schematic diagram of the first frame of the present invention.

[0019] Figure 4 This is a schematic diagram of the second frame of the present invention.

[0020] Figure numerals: 1—first frame, 2—second frame, 3—positioning plate, 4—limiting portion, 5—supporting portion, 6—inclined surface, 7—recessed portion, 8—screw hole, 9—convex extension, 10—positioning protrusion, 11—reinforcement rib. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0022] like Figures 1 to 4 As shown, the utility model provides a middle frame for a dual-space energy storage device, including a first frame body 1 and a second frame body 2, both of which are hollow structures. One side of the second frame body 2 has an opening, and positioning plates 3 are respectively provided at both ends of one side of the first frame body 1. The outer walls on both sides of the opening of the second frame body 2 respectively contact the two positioning plates 3 and are fixed by welding.

[0023] That is, when making the present invention, the first frame body 1 and the second frame body 2 are first formed by stamping / CNC respectively, and then the opening of the second frame body 2 is aligned with the side of the first frame body 1 provided with the positioning plate 3, and the outer walls on both sides of the opening of the second frame body 2 are respectively in contact with the two positioning plates 3, so as to achieve rapid assembly and positioning of the first frame body 1 and the second frame body 2; then, it is only necessary to weld the positioning plates 3 and the second frame body 2, so that the first frame body 1 and the second frame body 2 can be fixed and not separated, thereby achieving the effect of quickly making a middle frame for a dual-space energy storage device.

[0024] When preparing the double-space middle frame, it is difficult to form it in one go due to factors such as positioning and avoiding side wall deformation. Therefore, the present invention forms the two spaces separately and then positions, assembles and welds them. This clever structural change achieves a fast production effect, and positioning is achieved through the positioning plate 3 to ensure accurate and stable welding.

[0025] In this embodiment, the outer wall of the second frame body 2 is provided with a stopper 4, which is configured to interfere with the positioning plate 3. That is, when the stopper 4 exactly interferes with the positioning plate 3, the second frame body 2 is properly installed, thereby enabling automated assembly of the first frame body 1 and the second frame body 2, and avoiding safety hazards caused by over-assembly.

[0026] In this embodiment, a supporting portion 5 is provided between the positioning plate 3 and the first frame 1. The supporting portion 5 and the first frame 1 are arranged perpendicular to each other, and the supporting portion 5 is used to abut the second frame 2. That is, the supporting portion 5 is used to abut the second frame 2, so that there is sufficient space between the supporting portion 5 and the second frame 2 for welding.

[0027] Specifically, one end of the support portion 5 that abuts the second frame 2 and one end of the second frame 2 that abuts the support portion 5 are each provided with an inclined surface 6. These inclined surfaces 6 serve as welding locations, where the solder is fed to the inclined surfaces 6 for adhesion, ensuring reliable adhesion of the solder. In actual production, both inclined surfaces 6 are located on the same side to maximize solder adhesion.

[0028] In this embodiment, a recessed portion 7 is provided at a corner of the first frame 1 , wherein a positioning plate 3 is provided in the recessed portion 7 ; a screw hole 8 is provided in the recessed portion 7 .

[0029] In this embodiment, the outer side walls of the first frame body 1 and the outer side walls of the second frame body 2 are respectively provided with a plurality of protrusions 9, and the protrusions 9 are provided with screw holes 8; the inner side walls of the first frame body 1 and the inner side walls of the second frame body 2 are respectively provided with reinforcing ribs 11, and the reinforcing ribs 11 are provided with screw holes 8.

[0030] The provision of the protrusion 9 and the reinforcing ribs 11 is beneficial for improving the strength of the first frame 1 and the second frame 2, and is used for positioning components installed inside the first frame 1 / second frame 2 (such as energy storage devices) and outside the first frame 1 / second frame 2 (such as other components).

[0031] In this embodiment, the two positioning plates 3 are provided with positioning grooves on the sides facing each other, and the second frame body 2 is correspondingly provided with positioning protrusions 10 for inserting into the positioning grooves. The outer surface of the positioning protrusion 10 is an arc surface, and the shape of the positioning grooves is adapted to the shape of the positioning protrusion 10. By providing the positioning grooves and the positioning protrusions 10, secondary positioning between the first frame body 1 and the second frame body 2 is achieved. After the positioning protrusions 10 are inserted into the positioning grooves for positioning, it can be ensured that the first frame body 1 and the second frame body 2 will not be relatively displaced during subsequent welding. Specifically, a positioning plate 3 is preferably provided with two or more positioning grooves, and the positioning protrusions 10 correspond one-to-one to the positioning grooves.

[0032] Of course, in actual production, the two sides of the opening of the second frame body 2 can be slightly opened outward, that is, when the first frame body 1 and the second frame body 2 are assembled, the positioning plate 3 forces the two sides of the opening of the second frame body 2 to be clamped inward, so that the stress of the second frame body 2 itself always has a tendency to expand outward, which is conducive to maintaining the positioning and assembly effect of the positioning plate 3 and the second frame body 2.

[0033] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A middle frame for a dual-space energy storage device, characterized by: It includes a first frame body and a second frame body, both of which are hollow structures. One side of the second frame body has an opening. Positioning plates are respectively provided at both ends of one side of the first frame body. The outer walls on both sides of the opening of the second frame body respectively contact the two positioning plates and are fixed by welding.

2. The middle frame for a dual-space energy storage device according to claim 1, characterized in that: The outer side wall of the second frame body is provided with a limiting portion, and the limiting portion is used to interfere with the positioning plate.

3. The middle frame for a dual-space energy storage device according to claim 1, characterized in that: A supporting portion is provided between the positioning plate and the first frame body. The supporting portion and the first frame body are vertically arranged to each other, and the supporting portion is used to abut against the second frame body.

4. The middle frame for a dual-space energy storage device according to claim 3, characterized in that: An end of the supporting portion abutting against the second frame body and an end of the second frame body abutting against the supporting portion are respectively provided with inclined surfaces.

5. The middle frame for a dual-space energy storage device according to claim 1, characterized in that: A recessed portion is provided at a corner of the first frame, wherein a positioning plate is provided in the recessed portion; and a screw hole is provided in the recessed portion.

6. The middle frame for a dual-space energy storage device according to claim 1, characterized in that: The outer side wall of the first frame body and the outer side wall of the second frame body are respectively provided with a plurality of protrusions, and the protrusions are provided with screw holes.

7. The middle frame for a dual-space energy storage device according to claim 1, characterized in that: The inner side wall of the first frame body and the inner side wall of the second frame body are respectively provided with reinforcing ribs, and the reinforcing ribs are provided with screw holes.

8. The middle frame for a dual-space energy storage device according to claim 1, characterized in that: The first frame and the second frame are integrally formed by stamping or CNC.

9. The middle frame for a dual-space energy storage device according to claim 1, characterized in that: The two positioning plates are provided with positioning grooves on one side facing each other. The second frame is provided with positioning protrusions for inserting into the positioning grooves. The outer surface of the positioning protrusion is an arc surface. The shape of the positioning groove is adapted to the shape of the positioning protrusion.

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