CN113212564B

CN113212564B - A full aluminum alloy vehicle mortise and tenon type side panel structure

Info

Publication number: CN113212564B
Application number: CN202110542093.0A
Authority: CN
Inventors: 宗志坚; 覃星云; 梁佳宁; 刘华荣; 贤锦章; 龙飞永
Original assignee: Nanning Huashu Lightweight Electric Vehicle Design Institute Co ltd; Huazhong University of Science and Technology
Current assignee: Nanning Huashu Lightweight Electric Vehicle Design Institute Co ltd; Huazhong University of Science and Technology
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2024-11-12
Anticipated expiration: 2041-05-18
Also published as: CN113212564A

Abstract

An all-aluminum alloy vehicle mortise and tenon side enclosure structure, the side enclosure includes a side enclosure side beam, a lower bottom beam and a wheel eyebrow frame to form an outer contour, a plurality of cross beams and a plurality of columns are arranged inside the outer contour, glass is installed in the upper area of the waistline cross beam, an aluminum alloy panel is installed in the area between the waistline cross beam and the floor bottom beam, and a connection structure with the vehicle frame is designed in the area between the floor bottom beam and the lower bottom beam. The present invention realizes various mortise and tenon connections between profiles through a unique profile cross-section design, and further assembles and connects with the panel to form an all-aluminum alloy vehicle side enclosure structure module, which has the advantages of light weight, good rigidity, easy manufacturing, low cost, etc. At the same time, the assembly rigidity of the side enclosure is improved by assembling and connecting with the vehicle frame module through the surface area between the floor bottom beam and the lower bottom beam.

Description

All-aluminum alloy vehicle mortise and tenon type side wall structure

Technical Field

The invention relates to the technical field of manufacturing of new energy automobiles, in particular to an all-aluminum alloy vehicle mortise and tenon type side wall structure.

Background

The side wall of the automobile is an important structure which is arranged on the frame and forms the riding space in the passenger car, and has various requirements of strength, rigidity, sound insulation, heat insulation, vibration prevention, corrosion prevention, sealing and the like. The emphasis of the side wall design is on two aspects: 1) The function, performance and manufacturability of the side wall structure itself; 2) The mechanical and assembly of the connection of the side wall to the associated structure (in particular the frame, roof). The side wall of the traditional passenger car uses a profile steel welding skeleton, the outer side of the steel skeleton is covered with a skin, the mechanical property of the module is good, the skeleton welding and skin expansion welding process is also mature, and the main defects are large weight, poor corrosion resistance and high surface treatment requirements. The aluminum alloy side wall structure has been applied, the technology is derived from abroad, two materials of an aluminum alloy profile framework and an aluminum alloy skin are adopted, the frameworks are connected by adopting special connecting angle codes and HUCK bolts, welding is adopted between the frameworks and the skin, and the connection between the side wall module and the frame is assembled by a series of protruding support structures distributed on the edge of the floor and is fixed by bolts. The aluminum alloy side wall structure has the advantages of low light weight effect and high cost, and the assembly interface of the side wall and the frame is a linear area of the edges of the two sides of the floor, so that the connection rigidity is insufficient.

The following inquired vehicle aluminum alloy side wall publications are innovated and iterated aiming at the two major design problems:

1. Logistics vehicle whole-vehicle structure with full-bearing, modularized and full-light-weight structure and vehicle; application number: CN201810986448.3; applicants: intelligent control industry technology institute of force company; university of science and technology, abstract: a logistics vehicle whole vehicle structure with full bearing, modularization and full light weight structure and a vehicle belong to the technical field of vehicles. The structure comprises an aluminum alloy underframe structure, a side wall structure, a vertical separation surface structure, a front cabin instrument desk structure, a ceiling structure and connecting ribs. The aluminum alloy chassis structure includes a cross beam. The side wall structure comprises an outer frame upper side beam and an outer frame A column. The side wall structure is connected with the cross beam by mortise and tenon joints. The ceiling structure is in threaded connection or mortise-tenon connection with the upper edge beam of the outer frame. The vertical separation surface structure is respectively connected with the side wall structure, the underframe structure and the ceiling structure by mortise and tenon joints. The front cabin instrument desk structure is connected with the outer frame A column in a mortise and tenon mode. The front cabin instrument desk structure is in threaded connection or welding with the underframe structure. The connecting rib sheet is welded with the aluminum alloy underframe structure, the side wall structure, the vertical separation surface structure, the front cabin instrument desk structure and the ceiling structure mortise. The automobile comprises the structure. The structure has good mechanical property and light weight. The automobile is convenient for modularized manufacture and assembly.

2. An automotive body switching structure; application number: CN201210129441.2; ; applicants: the university of Dongguan Zhongshan institute, dongguan Sanxinv electric automobile technology Co., ltd., abstract: the automobile body switching structure comprises a connecting section bar, a grabbing section bar and an upright post grabbing head; the connecting profile comprises a bending part and grabbing edge parts positioned at two ends of the bending part, wherein the grabbing edge parts comprise two side walls and a bottom wall connecting the two side walls, the two side walls are provided with inwards extending grabbing hooks, and the bottom wall is provided with T-shaped hooks; the invention is used for connecting two non-coplanar vehicle body walls, such as a vehicle roof and a side wall, or a front wall and a side wall which are adjacent to the vehicle body, the assembly of the connecting section bar, the grabbing section bar and the upright post grabbing head is very convenient and rapid, the installation can be completed only by sliding the multiple T-shaped clamping structure into the notch, and the section bar has light weight and high strength of the multiple clamping structure; the plug-in part of the upright post grabbing head can be directly inserted into the cavity of the section bar perpendicular to the grabbing edge section bar, so that the connection between the vehicle body wall and the vehicle body switching structure of the invention is convenient and rapid.

3. A modularly connected lightweight frame body; application number: CN201410021954.0; applicants: university of Dongguan Zhongshan institute; dongguan three new electric automobile technology limited company; summary: the light frame body comprises a frame bottom module, a frame body module and a roof frame module, wherein the frame bottom module, the frame body module and the roof frame module are respectively formed by mutually joggling a plurality of longitudinal beams and cross beams, the frame bottom module is provided with a plurality of plug-in sleeves, two sides of the roof frame module are connected with a transfer beam structure, one end of the longitudinal beam of the frame body module is plugged with the plug-in sleeve of the frame bottom module, and the other end of the longitudinal beam of the frame body module is connected with the transfer beam structure; the longitudinal beam, the cross beam and the transfer beam are all profile beams, and through the arrangement of the connecting structure, the frame is in modularized design, convenient to manufacture and install, capable of guaranteeing installation accuracy, low in production cost, attractive in appearance, and capable of achieving safety standards while achieving light weight.

4. A connection structure of front and rear faces and a vehicle body frame of a light-weight middle bus; application number: CN201610610642.2; applicants: the university of Dongguan Zhongshan institute, dongguan Sanxinv electric automobile technology Co., ltd., abstract: a front and rear face and body frame connecting structure of a light-weight middle bus comprises an automobile front face covering part and an automobile rear face covering part which are fixedly arranged at the front end and the rear end of a body connecting end face framework respectively through connecting flashes; the front and rear face and vehicle body frame connecting structure has the following advantages: 1. the connecting flash connected to the front and rear ends of the automobile body connecting end face framework provides a good connecting structure for the front and rear faces of the automobile, is convenient for the assembly connection of the front and rear faces of the automobile and the automobile body frame, has simple process and high strength of the connecting structure; 2. the connecting flash can be used as a reinforcing rib structure of the front end face and the rear end face of the automobile body connecting end face framework, so that the structural strength of the front end face and the rear end face of the automobile body connecting end face framework is greatly enhanced; 3. the waterproof sealing performance of the front face, the rear face and the connecting end face framework of the vehicle body is better; 4. the front and rear face covering piece surfaces are in smooth butt joint with the roof modeling surface and the side surface.

5. An aluminum alloy side wall structure and an automobile; application number: CN201810986348.0; applicants: intelligent control industry technology institute of force company; summary: an aluminum alloy side wall structure and an automobile belong to the field of automobile light weight. The structure comprises an outer frame upper edge beam, an outer frame A column, an outer frame C column, an outer frame lower middle edge beam, an outer frame lower front edge beam, an outer frame lower rear edge beam, an upper cross beam, a lower cross beam, a middle cross beam, a door oblique beam, a plurality of upright posts and an inner joint. The plurality of upright posts are connected with the upper cross beam, the lower cross beam, the middle cross beam, the door oblique beam, the outer frame upper edge beam, the outer frame lower middle edge beam, the outer frame lower front edge beam and the outer frame lower rear edge beam in a mortise-tenon manner. The upper cross beam is connected with the end intersection points of the outer frame A column and the outer frame C column by the mortise and tenon joints of the inner plug. One end of the lower cross beam is connected with the door oblique beam by adopting an inner joint mortise and tenon joint, and the other end of the lower cross beam is connected with the outer frame C column by adopting the inner joint mortise and tenon joint. The front side beam and the outer frame A column, the outer frame A column and the outer frame upper side beam, the outer frame upper side beam and the outer frame C column, and the outer frame C column and the outer frame lower rear side beam are connected by an inner joint. The automobile comprises the structure. The structure and the automobile have good light weight effect.

Documents 1 and 2 (CN 201210129441.2 and CN 201410021954.0) propose a structure for connecting a side wall with a roof module by means of an arc-shaped connecting beam and a group of grabbing heads, wherein the connection is very firm, but the arc-shaped connecting beam is large in size and heavy, the shape of the arc of the corner is not easy to change, and the flexibility of modeling is limited; meanwhile, the inner cavity at the lower end of the side wall upright post is sleeved with the raised short column on the edge of the floor of the frame and locked by the bolt, so that the connection between the side wall and the frame is realized, the structure is simple, but the assembly interface between the two modules is a linear area, and the connection rigidity is not enough; the key invention of document 3 (CN 201610610642.2) is that the first section bar and the last section bar of the side wall and roof module are provided with section bar floating edges which are specially used for overlapping the front face and the back face, thereby realizing the convenient overlapping assembly of the front face and the back face; documents 4 and 5 (CN 201810986448.3 and CN 201810986348.0) are aimed at the structure of the all-aluminum alloy logistics vehicle, and the outer contour edge of the side wall is connected by adopting a plurality of opposite joints to realize the turning modeling of the local contour, so that the difficulty of sharp turning and bending of the section bar is avoided, but the structure is complex, meanwhile, the side wall module is connected with the vehicle frame through a mortise and tenon joint structure, the connection of the vehicle frame and the side wall in a planar area is realized, the connection rigidity of the side wall is increased, but the requirements on the assembly process are higher due to the difficult alignment of mortise and tenon joint holes between the side wall and the vehicle frame.

In summary, the existing aluminum alloy side wall structure needs to continuously improve the internal performance of the module and the assembly performance between the modules, and especially for a new vehicle frame with a battery tunnel cabin structure, the corresponding side wall structure and the connecting mode need to be innovated continuously.

Disclosure of Invention

According to the all-aluminum alloy vehicle mortise and tenon type side wall structure, the reasonable design on the section of each aluminum alloy section bar of the side wall is utilized, and mortise and tenon connection is carried out in the manners of mutually penetrating tenons, T-shaped tenons, I-shaped tenons and the like, so that the all-aluminum alloy vehicle mortise and tenon type side wall structure has the advantages of being good in rigidity, easy to produce and low in cost. Meanwhile, the plane area between the upper bottom edge and the lower bottom edge of the side wall structure and the side surface area of the frame are more conveniently connected, so that the assembly performance and the mechanical property between the modules are improved.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

The utility model provides an all aluminum alloy vehicle tenon fourth of twelve earthly branches formula side wall structure, the side wall includes side wall boundary beam, lower flounder and wheel arch frame formation outline, and the inside a plurality of stringing crossbeams that set up of outline to and a plurality of vertical stand, be glass installation region between side wall boundary beam and the stringing crossbeam, regional installation aluminum alloy profile panel between floor flounder and the stringing crossbeam.

The continuous closed loop formed by the side wall side beams, the bottom beams and the wheel arch frame is added with the longitudinal and transverse brackets formed by the waist line cross beams and the upright posts in the middle of the closed loop, and a rigid side wall structure is formed by mortise and tenon connection, and the rod pieces are stressed in an interpenetration way, so that the rigid side wall structure has good rigidity and integrity.

The waist line crossbeam below still sets up parallel transverse connection's entablature, and entablature adopts the mortise and tenon joint of interlude with the stand, and entablature both ends and side wall boundary beam adopt T mortise and tenon joint.

The arrangement of the reinforcing cross beam further enhances the rigidity of the lower part of the side wall structure and gives a foundation for installing and fixing the profile panel.

The profile panel is a transverse strip-shaped thin-wall aluminum profile plate, transverse I-shaped ribs are arranged on the back surface of the profile panel, and splicing notches and convex edges are arranged at the upper end and the lower end of the profile panel. The I-shaped ribs are used for reinforcing the rigidity of the plate body and are tightly pressed on the upright posts; the splicing notch and the convex edge can splice the profile panels up and down end to form a wide profile panel.

The side wall boundary beam is composed of three sections, the front section is bent to form a front A column of the vehicle body, the middle section is a straight line section, and the rear section is bent to form a rear C column of the vehicle body. The three-section side wall boundary beam section is characterized in that the connecting parts of the two ends of the straight line section are provided with the lock pins for connection and fixation to form an I-shaped mortise and tenon structure. The core-inserting section bar fixes the two-end side wall boundary beam section bars in an adhesive mode.

The floor bottom beam and the lower bottom beam are both provided with L-shaped assembly structures, and the edge folding beam on the frame is fixedly connected with the vertical edge of the L-shaped structure in a lap joint mode and is fixed through bolts and rivets.

The section of the side wall boundary beam section is in a fan-like shape, connecting edges are arranged on the fan-like side surfaces to form a right-angle L-shaped mounting surface, and the outer frame longitudinal beam of the top cover boundary beam is fixedly arranged on the right-angle L-shaped mounting surface and is fixedly sealed by bolts and glue. ; the fan-shaped bottom surface is connected with the upright post through tenon. The section bar with the fan-shaped section realizes the corner transition of the side wall of the vehicle and the roof, has small section area and width, can realize production by using a small-tonnage extruder, does not need the procedure of bending and forming the section bar in addition, saves a large amount of production cost and greatly improves the working efficiency; the side wall boundary beam section is also provided with a groove which is fixedly spliced with the window glass and the interior trim panel of the carriage, so that the subsequent assembly is greatly facilitated.

The end plug is arranged at the connection part of the lower end part of the column A of the side wall boundary beam and the wheel arch frame, the section of the wheel arch frame section is a double-cavity section, and the section is fixedly connected with the end plug through bolts. The end plugs can be conveniently fixed by tapping screws, so that the side wall side beams and the wheel arch frame are fixedly connected.

The upright posts are connected with the side wall side beams and the lower bottom beam in a T-shaped mortise and tenon mode; the upright posts are connected with the cross beams, the floor bottom beams and the reinforcing cross beams through tenons.

The upright post is matched with two side faces of the battery bin on the frame through the reinforcing folded plate and is welded and fixed. The reinforcing folded plate reinforces the positioning function of the battery compartment in the front-back direction, and corresponds to the clamping and positioning structure of the bottom beam, so that the position of the battery compartment is firmer. Because the battery of the new energy vehicle occupies a large part of the total weight of the vehicle, the tight fixation of the battery compartment and the side wall frame is important, the vertical and horizontal penetrating structure of the side wall is tightly combined with the battery compartment below through the two bottom beams, and the battery compartment can still keep the stability of the whole frame and the battery compartment even in the extreme states of sudden braking, sudden stopping and the like under the state that the two bottom beams are clamped up and down.

The floor bottom beam and the lower bottom beam are matched with the upper surface and the lower surface of the battery bin on the frame and are welded and fixed.

The upright post is provided with a tenon sleeve at the tenon-and-mortise joint of the waist line cross beam and the bottom beam. The section of the tenon sleeve is of a C-shaped structure, the inner cavity is matched with the outer contour of the upright post, the lower inserting part of the tenon sleeve is of a tip wedge shape, firstly, the upright post to be inserted is inserted into a pre-opening hole of the bottom beam or the cross beam, the pore diameter of the pre-opening hole is slightly larger than the outer contour dimension of the upright post, then the tip part of the tenon sleeve is inserted into an inserted gap, so that the upright post and the inserting hole are plugged tightly and not loosened, finally, the rod piece cannot be loosened, and the frame connection is tight and seamless.

The invention has the advantages that:

1. the side wall structure is suitable for small bus models; the inner frameworks of the side wall structures are connected through the mortise and tenon structures, the joints on the side wall profiles are simplified into I-shaped interpolation joints, the overall rigidity of the side wall modules is high, and the assembly manufacturing process is simple.

2. The connecting area of the side wall module and the frame module realizes a surface interval connecting interface, namely, the side wall module is connected in the surface area between the floor bottom beam and the lower bottom beam, and the assembling rigidity of the side wall is improved. Simultaneously, connect through the bolt between the upper and lower connection boundary beam of floor sill and underbeam and frame through the bolt, avoided the interlude assembly in mortise and tenon fourth of twelve earthly branches hole, further pass through the method and link the limit with the battery tunnel cabin's on the frame module tip and the peripheral structure on the side and carry out welded connection, further improved the connection rigidity.

3. The invention adopts the profile panel to replace the traditional aluminum alloy skin or glass fiber skin, realizes the full aluminum alloying, has smooth and beautiful appearance, is firmly connected with the side wall skeleton (upright post and cross beam), further improves the side wall rigidity, and ensures the sealing by embedding and connecting the profile panels and the upper and lower edges by mortises.

Drawings

FIG. 1 is a front view block diagram of the present invention;

FIG. 2 is a schematic view of the cross-sectional view of the A-A in FIG. 1;

FIG. 3 is an enlarged view of the structure at I in FIG. 2;

FIG. 4 is an enlarged view of the structure at II in FIG. 2;

FIG. 5 is an enlarged block diagram of the portion III in FIG. 2;

FIG. 6 is an enlarged block diagram of the portion IV of FIG. 2;

fig. 7 is an enlarged structural view of v in fig. 2;

FIG. 8 is a schematic view of the section B-B of FIG. 1;

FIG. 9 is a view of the structure of section C-C of FIG. 1;

FIG. 10 is a schematic view of the section D-D of FIG. 1;

FIG. 11 is a schematic view of the section E-E of FIG. 1;

FIG. 12 is an enlarged view of the construction of the portion VI in FIG. 11;

FIG. 13 is a view showing the mounting structure of the tenon joint at the upright post and the cross beam;

FIG. 14 is a block diagram of the installation of the tenon joints at the upright posts and the bottom beams;

1. Side wall side beams; 11. a core insert; 12. an end plug; 2. a column; 21. a tenon sleeve; 22. glass; 23. a profile panel; 24. edge folding beams; 3. waist line beam; 4. a reinforcing beam; 5. a bottom beam; 51. a floor; 52. floor bottom beams; 53. a lower bottom beam; 6. wheel arch frame; 7, preparing a base material; a battery compartment; 71. reinforcing flaps. 8. Roof side rails; 81. and (5) a top cover skin.

Detailed Description

Example 1

The side wall comprises a side wall boundary beam 1, a lower bottom beam 53 and a wheel arch frame 6 to form an outer contour, a plurality of waist line cross beams 3 and a plurality of vertical upright posts 2 are arranged in the outer contour, a glass 22 mounting area is arranged between the side wall boundary beam 1 and the waist line cross beams 3, and an aluminum alloy section panel 23 is arranged in the area between a floor bottom beam 52 and the waist line cross beams 3;

A reinforcing beam 4 which is connected in parallel and transversely is arranged below the waist line beam 3, the reinforcing beam 4 is connected with the upright post 2 by a mortise and tenon joint, and two ends of the reinforcing beam 4 are connected with the side wall side beam 1 by a T-shaped mortise and tenon joint;

The profile panel 23 is a transverse strip-shaped thin-wall aluminum profile plate, a transverse I-shaped rib is arranged on the back surface of the profile panel 23, and splicing notches and convex edges are arranged at the upper end and the lower end of the profile panel 23;

The side wall boundary beam 1 is composed of three sections, wherein the front section is bent to form a front A column of the vehicle body, the middle section is a straight line section, and the rear section is bent to form a rear C column of the vehicle body. The three-section side wall boundary beam 1 section is provided with a core insert 11 at the joint of the two ends of the straight line section for connection and fixation to form an I-shaped mortise-tenon structure;

the floor bottom beams 52 and the lower bottom beams 53 are provided with L-shaped assembly structures, and the edge folding beams 24 on the frame are fixedly overlapped with the vertical edges of the L-shaped structures and are fixed by bolts and rivets;

the section of the side wall boundary beam 1 is in a sector-like shape, connecting edges are arranged on the sector-like side surfaces to form a right-angle L-shaped mounting surface, and the outer frame longitudinal beam of the top cover boundary beam 8 is fixedly arranged on the right-angle L-shaped mounting surface and is fixedly sealed by bolts and glue. ; the fan-shaped bottom surface is connected with the upright post 2 through tenons;

the end plug 12 is arranged at the connection part of the lower end part of the column A of the side wall boundary beam 1 and the wheel arch frame 6, the section of the wheel arch frame 6 is a double-cavity section, and the section is fixedly connected with the end plug 12 through bolts.

The upright post 2 is connected with the side wall boundary beam 1 and the lower bottom beam 53 in a T-shaped mortise and tenon mode; the upright posts 2 are connected with the cross beams 3, the floor bottom beams 52 and the reinforcing cross beams 4 in a tenon-passing way;

the upright post 2 is matched with two side surfaces of the battery compartment 7 on the frame through a reinforcing folded plate 71 and is welded and fixed;

the floor bottom beams 52 and the lower bottom beams 53 are matched with the upper surface and the lower surface of the battery compartment 7 on the frame and are welded and fixed.

The upright post 2 is provided with a tenon sleeve 21 at the mortise and tenon joint with the waist line cross beam 3 and the bottom beam 5.

Application examples:

the side wall structure in the embodiment 1 of the invention is made of 6005A-T5 aluminum alloy section bars, the total width is 5800mm, the total height is 2200mm, the total weight of the single-side wall is 62kg, and the manufacturing cost of the single-side wall is 3400 yuan.

Claims

1. An all-aluminum alloy vehicle mortise and tenon side panel structure, characterized in that: the side panel comprises a side panel side beam (1), a lower bottom beam (53) and a wheel eyebrow frame (6) to form an outer contour, a plurality of waistline cross beams (3) and a plurality of vertical columns (2) are arranged inside the outer contour, a glass (22) installation area is provided between the side panel side beam (1) and the waistline cross beam (3), and an aluminum alloy profile panel (23) is installed in the area between the floor bottom beam (52) and the waistline cross beam (3);

The cross section of the side wall side beam (1) is quasi-sector-shaped, and the side of the sector is arranged with connecting edges to form a right-angled L-shaped mounting surface. The outer frame longitudinal beam of the top cover side beam (8) is mounted and fixed on the right-angled L-shaped mounting surface and fixed and sealed with bolts and glue; the bottom surface of the sector is connected to the column (2) through tenoning;

An end plug (12) is provided at the connection portion between the lower end of the A-pillar of the side frame beam (1) and the fender frame (6); the fender frame (6) has a profile cross-section of a double-cavity profile and is fixedly connected to the end plug (12) by bolts;

The column (2) is provided with a tenon sleeve (21) at the mortise and tenon joint between the column (2) and the waistline cross beam (3) and the bottom beam (5); the cross section of the tenon sleeve (21) is a C-shaped structure, the inner cavity matches the outer contour of the column (2), and the lower insertion portion of the tenon sleeve (21) is a tip wedge-shaped. First, the column (2) to be plugged is inserted into a pre-opened hole of the bottom beam (5) or the cross beam (3), the aperture of the pre-opened hole is slightly larger than the outer contour size of the column (2), and then the tip of the tenon sleeve (21) is inserted into the plug-in gap.

2. According to claim 1, the all-aluminum alloy vehicle mortise and tenon side panel structure is characterized in that: a parallel and transversely connected reinforcing beam (4) is also arranged below the waistline beam (3), the reinforcing beam (4) and the column (2) are connected by interlaced mortise and tenon joints, and the two ends of the reinforcing beam (4) are connected to the side panel edge beam (1) by T-shaped mortise and tenon joints.

3. The all-aluminum alloy vehicle mortise and tenon side panel structure according to claim 1 is characterized in that: the profile panel (23) is a transverse strip-shaped thin-walled aluminum profile plate, a transverse I-shaped rib is arranged on the back of the profile panel (23), and splicing grooves and convex edges are arranged on the upper and lower ends of the profile panel (23).

4. According to claim 1, the all-aluminum alloy vehicle mortise and tenon side panel structure is characterized in that: the side panel edge beam (1) is composed of three sections, the front section is bent to form the A-pillar at the front of the vehicle body, the middle section is a straight section, and the rear section is bent to form the C-pillar at the rear of the vehicle body; the three sections of the side panel edge beam (1) profile are provided with inserts (11) at the connection points at both ends of the straight section for connection and fixation, forming an I-type mortise and tenon structure.

5. The all-aluminum alloy vehicle mortise and tenon side panel structure according to claim 1 is characterized in that: the floor bottom beam (52) and the lower bottom beam (53) both have an L-shaped assembly structure, and the edge beam (24) on the frame is overlapped and fixed to the vertical edge of the L-shaped structure and fixed by bolts and rivets.

6. The all-aluminum alloy vehicle mortise and tenon side panel structure according to claim 1 is characterized in that: the column (2) is connected to the side panel edge beam (1) and the lower bottom beam (53) by T-shaped mortise and tenon joints; the column (2) is connected to the cross beam (3), the floor bottom beam (52) and the reinforcing cross beam (4) by through-tenon joints.

7. The all-aluminum alloy vehicle mortise and tenon side panel structure according to claim 1, characterized in that the upright column (2) is matched with two side surfaces of the battery compartment (7) on the vehicle frame through a reinforcing folding plate (71) and is fixed by welding.

8. The all-aluminum alloy vehicle mortise and tenon side panel structure according to claim 1 is characterized in that the floor bottom beam (52) and the lower bottom beam (53) cooperate with the upper and lower surfaces of the battery compartment (7) on the frame and are welded and fixed.