New energy micro-face rapid battery replacement framework

By adopting a C-shaped structure and multi-point support design in the battery swapping frame, the stress concentration problem caused by the small contact area between the crossbeams and longitudinal beams is solved, achieving uniform load distribution and improving the stability of the frame, thus ensuring the safety and reliability of the battery swapping process.

CN224408940UActive Publication Date: 2026-06-26HE FEI FENG HUA QI CHE LING BU JIAN YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HE FEI FENG HUA QI CHE LING BU JIAN YOU XIAN GONG SI
Filing Date
2025-06-13
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The small contact area between the crossbeams and longitudinal beams in the existing battery swapping frame leads to stress concentration during the swapping process, causing local deformation or fracture of the frame and affecting structural stability and load-bearing capacity.

Method used

The design incorporates C-shaped longitudinal and transverse beams, with the ends of the transverse beams welded into the C-shaped grooves of the longitudinal beams. Mounting boxes and reinforcing ribs are installed on the transverse beams to form a multi-point support structure, increasing the contact area and connection strength. The transverse beams are then fixedly connected to the electric vehicle frame via mounting components, enabling multi-point quick-release connections.

Benefits of technology

Effectively distributes the load during the battery swapping process, avoids local stress concentration, improves the overall load-bearing capacity and structural stability of the frame, and ensures the safety and reliability of the battery swapping process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a fast battery swapping frame for new energy microvans, comprising: a frame body, wherein the frame body is formed by two sets of longitudinal beams and two sets of transverse beams connected together; the longitudinal beams adopt a C-shaped structure; the ends of the transverse beams are located in the C-shaped grooves of the longitudinal beams; a notch is provided at the top of the transverse beams near one end; and support plates are provided inside the transverse beams on both sides of the notch; this utility model forms a stable overlapping structure by welding the ends of the transverse beams to the C-shaped grooves of the longitudinal beams, which increases the contact area of ​​the connection parts, allowing the load generated during battery swapping to be more effectively distributed along the longitudinal beams to the entire frame body, avoiding local stress concentration, and significantly improving the overall load-bearing capacity and structural stability of the frame body.
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Description

Technical Field

[0001] This utility model relates to the field of battery swapping frame technology, and in particular to a fast battery swapping frame for new energy microvans. Background Technology

[0002] In recent years, with the continuous development of new energy technologies, the number of new energy vehicles on the road has been increasing nationwide. In addition to passenger cars, new energy commercial vehicles are also growing rapidly. However, range and charging issues have always been a problem. With the rapid development of e-commerce, express delivery and other industries, new energy microvans have become an important tool for urban logistics and distribution, and their market demand continues to grow. However, the battery capacity of microvans is often larger than that of new energy passenger cars, and the charging time is longer. Therefore, the problem of long charging time and short range is often solved by replacing the battery pack.

[0003] In existing battery swapping frames, the contact area between the crossbeams and longitudinal beams is small. During the battery swapping process, stress concentration will form at the connection nodes, causing local deformation or even breakage of the frame, thus damaging the frame. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] The fast battery swapping frame for new energy microvans includes:

[0006] The frame is formed by two sets of longitudinal beams and two sets of transverse beams connected to each other. The longitudinal beams adopt a C-shaped structure. The ends of the transverse beams are located in the C-shaped grooves of the longitudinal beams. A notch is opened at the top of the transverse beams and near one end. Support plates are provided inside the transverse beams and on both sides of the notch.

[0007] The mounting component is disposed on the inner wall of the beam and located below the notch;

[0008] A connecting unit is disposed on the crossbeam for fixed connection with the frame of the electric vehicle.

[0009] As an improvement to the above technical solution, the connecting unit includes mounting box one, mounting box two and mounting box three that are sequentially embedded inside the beam. The top surfaces of mounting box one, mounting box two and mounting box three are higher than the top surface of the beam, and the bottoms of mounting box one, mounting box two and mounting box three extend into the C-shaped groove of the beam.

[0010] As an improvement to the above technical solution, an installation rod is welded between the two sets of crossbeams, and a plug support is welded between the installation rod and one of the sets of longitudinal beams.

[0011] As an improvement to the above technical solution, multiple sets of reinforcing ribs are provided at intervals in the C-shaped groove of the longitudinal beam along its extension direction.

[0012] As an improvement to the above technical solution, the installation assembly includes a connecting plate fixed to the inner wall of the crossbeam by bolts, a connecting block integrally formed on the top of the connecting plate, and an installation tube integrally formed in the connecting block. The two sides of the connecting plate are bent toward the connecting block to have limiting portions, and the limiting portions are provided with arc-shaped grooves that partially surround the installation tube.

[0013] The beneficial effects of this utility model are:

[0014] The ends of the crossbeams are welded into the C-shaped grooves of the longitudinal beams to form a stable lap joint structure, which increases the contact area of ​​the connection parts. This allows the load generated during the power swapping process to be more effectively distributed along the longitudinal beams to the entire frame, avoiding local stress concentration and significantly improving the overall load-bearing capacity and structural stability of the frame. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0017] Reference numerals: 10, longitudinal beam; 101, reinforcing rib; 11, transverse beam; 111, notch; 112, mounting box one; 113, mounting box two; 114, mounting box three; 115, support plate; 20, connecting plate; 21, connecting block; 22, bolt; 23, mounting tube; 24, limiting part; 30, plug support seat; 31, mounting rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] The fast battery swapping frame for new energy microvans includes:

[0020] The frame is formed by two sets of longitudinal beams 10 and two sets of transverse beams 11 connected to each other. The longitudinal beams 10 adopt a C-shaped structure. The ends of the transverse beams 11 are located in the C-shaped grooves of the longitudinal beams 10. A notch 111 is opened at the top of the transverse beams 11 and near one end. Support plates 115 are provided inside the transverse beams 11 and on both sides of the notch 111.

[0021] The mounting component is disposed on the inner wall of the crossbeam 11 and located below the notch 111;

[0022] A connecting unit is disposed on the crossbeam 11 for fixed connection with the frame of the electric vehicle.

[0023] Specifically, the end of the crossbeam 11 is welded into the C-groove of the longitudinal beam 10 to achieve a stable overlap, increasing the contact area and more effectively distributing the load generated during the power swapping process. The tight fit between the C-groove and the end of the crossbeam allows the force to be distributed along the longitudinal beam structure to the entire frame, avoiding local stress concentration and enhancing the overall load-bearing capacity of the frame. Support plates 115 are provided on both sides of the notch 111 to enhance the local load-bearing capacity and provide installation fulcrums. They also reinforce the structure at the notch 111 of the crossbeam 11, as the presence of the notch 111 would weaken the strength of the crossbeam 11. The support plate 115 can share the stress at the notch 111. By increasing the stress-bearing area of ​​the crossbeam 11 at this part, the overall bending and deformation resistance of the crossbeam 11 is improved, ensuring the stability of the crossbeam 11 during the battery swapping operation, thereby maintaining the strength of the frame structure. The mounting components are used to connect with the locking mechanism. The connection unit adopts a multi-point quick-release connection structure to ensure sufficient connection strength between the battery swapping frame and the vehicle frame. The multi-point connection method not only improves the connection reliability between the battery swapping frame and the vehicle frame, but also enhances the overall stability of the battery swapping system under dynamic working conditions.

[0024] In one embodiment, the connecting unit includes mounting boxes 112, 113, and 114, which extend along the crossbeam 11 and are sequentially embedded therein. The top surfaces of mounting boxes 112, 113, and 114 are higher than the top surface of the crossbeam 11, and the bottom surfaces of mounting boxes 112, 113, and 114 extend into the C-shaped groove of the crossbeam 11. This structure breaks away from the traditional single-point or planar connection mode. Mounting boxes 112, 113, and 114 are in close contact with the electric vehicle frame, increasing... The increased contact area between the connecting unit and the frame allows the force transmitted by the frame to be more evenly distributed on the crossbeams, forming a multi-point support system. When the battery is removed or installed, the external force acts on the vehicle, and this force is transmitted through the frame to the mounting boxes 112, 113, and 114 of the connecting unit. Due to the extended layout of the mounting boxes 112, 113, and 114, the external force is decomposed into components in multiple directions. The mounting boxes 112, 113, and 114 work together to bear and transmit the load.

[0025] In one embodiment, an installation rod 31 is welded between the two sets of crossbeams 11, and a plug support 30 is welded between the installation rod 31 and one of the sets of longitudinal beams 10. The installation rod 31 connects the two sets of crossbeams 11 into a whole, so that the horizontal load can be evenly distributed between the crossbeams, avoiding deformation of a single crossbeam 11 due to excessive force. At the same time, the welding connection method ensures that the installation rod 31 and the crossbeam 11 form a rigid connection, further improving the overall rigidity and stability of the frame. The plug support 30 can distribute the external force received to the installation rod 31 and the longitudinal beam 10, avoiding damage to this area due to force concentration.

[0026] In one embodiment, multiple sets of reinforcing ribs 101 are spaced apart in the C-shaped groove of the longitudinal beam 10 along its extension direction. The spaced reinforcing ribs 101 form a "segmented support" structure. When the frame encounters an accidental impact, it absorbs energy through local deformation to prevent the longitudinal beam 10 from breaking as a whole, thereby enhancing the fatigue resistance and safety redundancy of the frame.

[0027] In one embodiment, the mounting assembly includes a connecting plate 20 fixed to the inner wall of a crossbeam 11 by bolts 22, an integrally formed connecting block 21 disposed on the top of the connecting plate 20, and an integrally formed mounting tube 23 disposed within the connecting block 21. The connecting plate 20 has limiting portions 24 bent on both sides towards the connecting block 21. The limiting portions 24 have arc-shaped grooves that semi-enclose the mounting tube 23. The connecting plate 20 serves as the basic support platform for the entire mounting assembly, providing a detachable connection to the crossbeam 11 for easy assembly and subsequent maintenance. It also provides an installation reference surface for the connecting block 21. The connecting block 21 carries the mounting tube 23, enhancing the overall structural rigidity of the mounting assembly. A screw is inserted into the internal thread of the mounting tube 23 to achieve connection with a locking mechanism. The limiting portions 24 effectively constrain the connecting block 21 through their enclosing structure, improving the torsional stiffness and load-bearing capacity of the entire mounting assembly. The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it.

Claims

1. A new energy micro-face quick battery replacement framework, characterized in that, include: The frame is formed by connecting two sets of longitudinal beams (10) and two sets of transverse beams (11). The longitudinal beams (10) adopt a C-shaped structure. The ends of the transverse beams (11) are located in the C-shaped grooves of the longitudinal beams (10). A notch (111) is provided at the top of the transverse beams (11) and near one end. Support plates (115) are provided inside the transverse beams (11) and on both sides of the notch (111). The mounting component is disposed on the inner wall of the crossbeam (11) and located below the notch (111); A connecting unit is provided on the crossbeam (11) for fixed connection with the frame of the electric vehicle.

2. The new energy micro-face quick battery replacement framework according to claim 1, characterized in that: The connecting unit includes mounting box one (112), mounting box two (113) and mounting box three (114) that extend along the crossbeam (11) and are sequentially embedded inside it. The top surfaces of mounting box one (112), mounting box two (113) and mounting box three (114) are higher than the top surface of the crossbeam (11), and the bottom of mounting box one (112), mounting box two (113) and mounting box three (114) extends into the C-shaped groove of the crossbeam (11). 3.The new energy micro-face quick battery swapping framework according to claim 2, characterized in that: An installation rod (31) is welded between the two sets of crossbeams (11), and a plug support (30) is welded between the installation rod (31) and one of the sets of longitudinal beams (10).

4. The new energy micro-face quick battery replacement framework according to claim 1, characterized in that: Multiple sets of reinforcing ribs (101) are provided in the C-shaped groove of the longitudinal beam (10) at intervals along its extension direction.

5. The new energy microvan fast battery swapping frame according to claim 4, characterized in that: The mounting assembly includes a connecting plate (20) fixed to the inner wall of the crossbeam (11) by bolts (22), a connecting block (21) integrally formed on the top of the connecting plate (20), and a mounting tube (23) integrally formed in the connecting block (21). The connecting plate (20) is bent on both sides toward the connecting block (21) with limiting portions (24), and the limiting portions (24) are provided with arc-shaped grooves that partially surround the mounting tube.