CN114843545B - Fuel cell box structure and manufacturing method - Google Patents
Fuel cell box structure and manufacturing method Download PDFInfo
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- CN114843545B CN114843545B CN202210466341.2A CN202210466341A CN114843545B CN 114843545 B CN114843545 B CN 114843545B CN 202210466341 A CN202210466341 A CN 202210466341A CN 114843545 B CN114843545 B CN 114843545B
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- 239000000446 fuel Substances 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 48
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 33
- 238000003466 welding Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 13
- 238000012545 processing Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 description 9
- 238000012827 research and development Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a fuel cell box structure and a manufacturing method thereof, wherein the fuel cell box structure utilizes a plurality of L-shaped aluminum materials to build a frame main body, the frame main body comprises two quadrilateral frames and 4 upright posts which are distributed vertically at intervals, each quadrilateral frame consists of 2 transverse beams and 2 longitudinal beams, the outline of each quadrilateral frame is rectangular or square, the 4 upright posts are connected at the corner positions between the two quadrilateral frames, a positioning cavity with a step spigot is processed on the L-shaped aluminum materials on each side surface of the frame main body, each positioning cavity is inlaid with a thin sealing plate, the thin sealing plates are abutted against the step spigot, the edges of the thin sealing plates are welded with the frame main body, and the assembly and the building are realized by each single part, so that the problem that redundant materials are generated after the fuel cell box is welded and formed is avoided, the redundant materials are not required to be removed by adopting machining, the waste materials are avoided, the production and processing technology of the fuel cell box is simplified, the workload is reduced, and the cost is saved.
Description
Technical field:
The invention relates to a fuel cell box structure and a manufacturing method thereof.
The background technology is as follows:
The fuel cell box body is an important structural member of the fuel cell, and the box body, the bottom plate and the upper cover are connected together through bolts to form a fuel cell box with reliable strength and good sealing, so that the fuel cell box body plays a role in protecting key parts of the fuel cell in the box body.
The traditional fuel cell box body is mostly cast by steel or aluminum materials, the manufacturing cost of a die is high, the cost of the die is shared to a single part, so that the cost of the whole fuel cell is high, the flexibility of part adjustment after the die is opened is low, and only a single product can be used. The method is also characterized in that the whole steel or aluminum ingot is manufactured by a large amount of machining, the machining amount of the method is large, the utilization rate of raw materials is low, waste is caused to a great extent, and high cost is generated due to the large machining amount.
The box body structure is extruded by adopting the extrusion die, other plates and the box body structure are welded into a whole by utilizing the friction stir welding process, but the friction stir welding process requires that the welding seam of two weldments needs at least about 10mm thick plates to be welded, and the extrusion die only can extrude plates with the same section thickness, so that after the friction stir welding molding, the whole box body also needs to be mechanically processed to remove redundant materials, and although the secondary method reduces the cost of the die to a certain extent, after the friction stir welding molding, the mechanical processing is needed to remove a lot of materials, so that the material is wasted, the workload of the mechanical processing is increased, and the cost is increased, and the concrete reference publication number is: CN 212517273U, patent name: the utility model patent of a kind of fuel cell system and fuel cell box structure, this scheme adopts the friction stir welding process to weld two extrusion parts and three flat plate parts in an organic whole, then need to get rid of the superfluous material on the box through the way of machining, in order to realize the lightweight of self structure, but this scheme extrusion is because of the too thick, need carry on the secondary machining of panel thickness, get rid of the unnecessary material in order to lighten the weight, so also waste the material to a certain extent, has increased the work load of machining.
The invention comprises the following steps:
the invention aims to provide a fuel cell box structure and a manufacturing method thereof, which do not need secondary machining of a fuel cell box, and have the advantages of less workload and low cost.
The aim of the invention is achieved by the following technical scheme.
The invention aims to provide a fuel cell box body structure, which utilizes a plurality of L-shaped aluminum materials to build a frame main body, wherein the frame main body comprises two quadrilateral frames and 4 upright posts which are distributed up and down at intervals, each quadrilateral frame consists of 2 transverse beams and 2 longitudinal beams, the outline of each quadrilateral frame is rectangular or square, the upright posts, the transverse beams and the 2 longitudinal beams are all made of the L-shaped aluminum materials, the 4 upright posts are connected at the corner positions between the two quadrilateral frames, positioning cavities with step rabbets are processed on the L-shaped aluminum materials on each side face of the frame main body, each positioning cavity is inlaid with a thin sealing plate, the thin sealing plate is abutted against the step rabbets, and the edges of the thin sealing plates are welded with the frame main body.
Preferably, the end of the upright is provided with a first cut-out and a first extension; the end part of the transverse beam is provided with a second notch and a second extension part; the end part of the longitudinal beam is provided with a third notch and a third extension part, and the upright post, the transverse beam and the longitudinal beam on any angle position of the frame main body are connected by welding after being spliced.
Preferably, the first cutout, the second cutout, and the third cutout are all rectangular.
Preferably, the thin sealing plate is flush with the surface of the frame body.
Preferably, an annular seal ring groove for placing the seal ring is machined on the top end face of the frame body.
Preferably, a plurality of first mounting holes are machined in the top end face of the frame body, and the first mounting holes are located on the outer side of the annular sealing ring groove.
Preferably, several mounting interfaces are welded to the thin sealing plate.
Preferably, a plurality of second mounting holes are machined in the bottom end surface of the frame body.
Preferably, the transverse beam comprises a first transverse connection plate and a second transverse connection plate, the longitudinal beam comprises a first longitudinal connection plate and a second longitudinal connection plate, and the upright comprises a first side plate and a second side plate;
the first notch is arranged at two ends of the first side plate, so that the first extension part is formed at two ends of the second side plate, the second notch is arranged at two ends of the first transverse connection plate, so that the second extension part is formed at two ends of the second transverse connection plate, and the third notch is arranged at two ends of the second longitudinal connection plate, so that the third extension part is formed at two ends of the first longitudinal connection plate;
The third extension part is in butt joint with the second incision, form the holding chamber between the terminal surface of second extension part and second longitudinal connection board, first extension part is in butt joint with the holding chamber, the second extension part is in butt joint with first incision and support on the terminal surface of first curb plate to realize the concatenation on the arbitrary angular position of stand, transverse beam and longitudinal beam.
Another object of the present invention is to provide a method for manufacturing a fuel cell case structure, using the above-mentioned fuel cell case structure, comprising the steps of:
Step one: cutting out 4 upright posts, 4 transverse beams and 4 longitudinal beams according to the required length by utilizing the L-shaped aluminum material;
Step two: respectively machining first cuts at two ends of a first side plate of each upright post, respectively forming first extending parts at two ends of a second side plate of each upright post, respectively machining second cuts at two ends of a first transverse connecting plate of each transverse beam, respectively forming second extending parts at two ends of a second transverse connecting plate of each transverse beam, respectively machining third cuts at two ends of a second longitudinal connecting plate of each longitudinal beam, respectively forming third extending parts at two ends of a first longitudinal connecting plate of each longitudinal beam;
Step three: the third extension part is butted with the second notch, a containing cavity is formed between the second extension part and the end face of the second longitudinal connecting plate, the first extension part is butted with the containing cavity, the second extension part is butted with the first notch and supported on the end face of the first side plate so as to realize the splicing of any angle position of the upright post, the transverse beam and the longitudinal beam, then the corresponding upright post, the transverse beam and the longitudinal beam are positioned and clamped by a clamp, and then the frame main body is built by adopting a stirring friction welding process to carry out welding fixation along the splicing seams on the angle positions of the upright post, the transverse beam and the longitudinal beam;
step four: positioning cavities with step rabbets are processed on the side surfaces of the frame main body, a thin sealing plate is embedded in each positioning cavity and is abutted against the step rabbets, so that the thin sealing plate is flush with the surface of the frame main body, and then the edges of the thin sealing plate and the frame main body are welded and fixed by adopting a stirring friction welding process to form the fuel cell box body.
Preferably, the manufacturing method further comprises the steps of:
Step five: an annular sealing ring groove for placing a sealing rubber ring and a plurality of first mounting holes are processed on the top end surface of the frame main body, and the first mounting holes are positioned on the outer side of the annular sealing ring groove;
Step six: a plurality of second mounting holes are processed on the bottom end surface of the frame main body;
step seven: and welding a plurality of mounting interfaces on the thin sealing plate.
Compared with the prior art, the invention has the following effects:
1) The frame main body is directly built by adopting a plurality of L-shaped aluminum materials, the thin sealing plates are welded on the side face of the frame main body, and the assembly building is realized by each single part, so that the problem that redundant materials are generated after the fuel cell box body is welded and molded is avoided, the redundant materials are not required to be removed by adopting machining for the second time, the waste of materials is avoided, the production and processing technology of the fuel cell box body can be simplified, the workload is reduced, and the cost is saved.
2) The L-shaped aluminum material is adopted as the main body beam of the frame main body, the plate of the L-shaped aluminum material is thick and stable and reliable after welding forming, and the use of manufacturing materials is reduced as much as possible on the premise of ensuring that the frame main body has enough strength, so that the manufacturing cost of the fuel cell box body is reduced, and the L-shaped aluminum material has small sectional area and simple structure, so that the structure of the extrusion forming die is simplified and the volume of the extrusion forming die can be properly reduced, thereby reducing the research and development cost of the extrusion forming die and the manufacturing cost of the fuel cell box body.
3) The frame main body is directly built by adopting a plurality of L-shaped aluminum materials, so that the fuel cell box body is not limited by the length, width and height of the fuel cell box body, the L-shaped aluminum materials with required lengths are cut according to requirements, production dies with different sizes are not required to be frequently switched, the cost input of the production dies is reduced, the universality of the production dies is high, the research and development period is shortened, and the production cost is saved.
4) The L-shaped aluminum material on each side face of the frame main body is processed with a positioning cavity with a step spigot, each positioning cavity is inlaid with a thin sealing plate, the thin sealing plates are propped against the step spigot, the joint seams are located on the same plane, and the square frame body is adopted, so that the joint seams are all vertical, the welding processing is convenient, and the thin sealing plates are inlaid in the positioning cavities, so that the fuel cell box body is high in overall structural strength and good in sealing performance after being welded.
5) Other advantages of the present invention are described in detail in the examples section.
Description of the drawings:
fig. 1 is a schematic perspective view (welded state) of a fuel cell case provided for the present invention;
fig. 2 is a schematic top view of a fuel cell case according to the present invention;
FIG. 3 is a schematic cross-sectional view of A-A provided for FIG. 2;
FIG. 4 is an enlarged schematic view of the portion B provided for FIG. 3;
FIG. 5 is an enlarged schematic view of the portion C provided for FIG. 3;
Fig. 6 is a schematic perspective view (unwelded state) of a frame body provided for the present invention;
FIG. 7 is a schematic perspective view of a positioning cavity machined into a frame body (unwelded state) according to the present invention;
Fig. 8 is a schematic perspective view (unwelded state) of a thin seal plate for mounting a frame body according to the present invention;
Fig. 9 is a schematic perspective view (unwelded state) of a fuel cell case provided for the present invention;
Fig. 10 is a schematic view of a three-dimensional structure of a frame body provided by the invention before splicing of a vertical column, a transverse beam and a longitudinal beam at any one of the corners;
FIG. 11 is a schematic perspective view of the splice of the uprights, transverse beams and longitudinal beams at any one of the corners of the frame body provided by the invention;
fig. 12 is a schematic perspective view showing a spliced structure of the vertical column, the transverse beam and the longitudinal beam at any one corner of the frame body provided by the present invention.
The specific embodiment is as follows:
The invention is described in further detail below by means of specific embodiments in connection with the accompanying drawings.
Embodiment one:
As shown in fig. 1 to 12, this embodiment provides a fuel cell box structure, a plurality of L-shaped aluminum materials are used to construct a frame body 10, the frame body 10 includes two quadrilateral frames 20 and 4 columns 1 which are vertically and alternately distributed, each quadrilateral frame 20 is composed of 2 transverse beams 2 and 2 longitudinal beams 3, the outer contour of each quadrilateral frame 20 is rectangular or square, each column 1, each transverse beam 2 and 2 longitudinal beams 3 are made of L-shaped aluminum materials, 4 columns 1 are connected at the corner between the two quadrilateral frames 20, positioning cavities 5 with step rabbets 4 are processed on the L-shaped aluminum materials on each side face of the frame body 10, each positioning cavity 5 is inlaid with a thin sealing plate 6, the thin sealing plate 6 is abutted against the step rabbets 4, the thin sealing plate 6 is flush with the surface of the frame body 10, and the edges of the thin sealing plate 6 are welded with the frame body 10.
According to the fuel cell box provided by the invention, the frame main body 10 is directly built by adopting a plurality of L-shaped aluminum materials, then the thin sealing plate 6 is welded on the side surface of the frame main body 10, and each single part is assembled and built, so that the problem that redundant materials are generated after the fuel cell box is welded and molded is avoided, the redundant materials are not required to be removed by adopting machining for the second time, the waste of the materials is avoided, the production and processing technology of the fuel cell box is simplified, the workload is reduced, and the cost is saved; the L-shaped aluminum material is adopted as the main body beam of the frame main body 10, the plate of the L-shaped aluminum material is thick and stable, and the L-shaped aluminum material is stable and reliable after welding and forming, so that the use of manufacturing materials is reduced as much as possible on the premise of ensuring that the frame main body 10 has enough strength, the manufacturing cost of the fuel cell box body is reduced, and the L-shaped aluminum material has small sectional area and simple structure, so that the structure of the extrusion forming die is simple and the volume can be properly reduced, the research and development cost of the extrusion forming die is reduced, and the manufacturing cost of the fuel cell box body is reduced; in addition, the frame main body 10 is directly built by adopting a plurality of L-shaped aluminum materials, so that the fuel cell box body is not limited by the length, width and height, and only the L-shaped aluminum materials with required lengths are needed to be cut according to the requirements, so that production dies with different sizes do not need to be frequently switched, the cost input of the production dies is reduced, the universality of the production dies is improved, the research and development period is shortened, and the production cost is saved; and in addition, the L-shaped aluminum materials on each side face of the frame main body 10 are processed with positioning cavities 5 with step rabbets 4, each positioning cavity 5 is embedded with a thin sealing plate 6, the thin sealing plates 6 are propped against the step rabbets 4, so that the joint seams are positioned on the same plane, and the square frame body is adopted, so that the joint seams are all vertical, the welding processing is convenient, and the thin sealing plates 6 are embedded in the positioning cavities 5, so that the overall structural strength of the welded fuel cell box body is high, and the sealing performance is good.
As shown in fig. 6 to 12, the end of the upright 1 is provided with a first cutout 11 and a first extension 12; the end of the transverse beam 2 is provided with a second cutout 21 and a second extension 22; the end of the longitudinal beam 3 is provided with a third cut 31 and a third extension 32, and the upright 1, the transverse beam 2 and the longitudinal beam 3 at any angle of the frame body 10 are connected by welding after being spliced; specifically, the transverse beam 2 comprises a first transverse connection plate 23 and a second transverse connection plate 24, the longitudinal beam 3 comprises a first longitudinal connection plate 33 and a second longitudinal connection plate 34, and the upright 1 comprises a first side plate 13 and a second side plate 14; the first cuts 11 are disposed at both ends of the first side plate 13, the first extension 12 is formed at both ends of the second side plate 14, the second cuts 21 are disposed at both ends of the first cross-connecting plate 23, the second extension 22 is formed at both ends of the second cross-connecting plate 24, the third cuts 31 are disposed at both ends of the second longitudinal connecting plate 34, and the third extension 32 is formed at both ends of the first longitudinal connecting plate 33; the third extension portion 32 is abutted against the second notch 21, so that the third extension portion 32 is abutted against the end face of the first transverse connection plate 23 and the side face of the second extension portion 22, a containing cavity 8 is formed between the second extension portion 22 and the end face of the second longitudinal connection plate 34, the first extension portion 12 is abutted against the containing cavity 8, the first extension portion 12 is abutted against the side face of the second extension portion 22, the side face of the third extension portion 32 and the end face of the second longitudinal connection plate 34, the second extension portion 22 is abutted against the first notch 11 and supported on the end face of the first side plate 13, and the second extension portion 22 is abutted against the end face of the first side plate 13 and the side face of the first extension portion 12, so that splicing of any one of the corner positions of the upright post 1, the transverse beam 2 and the longitudinal beam 3 is achieved; utilize tenon fourth of twelve earthly branches structure to realize the concatenation on every angle position of stand 1, horizontal roof beam 2 and vertical roof beam 3, can improve the structural stability at angle position, be convenient for later stage welding process, can effectively improve welding efficiency, shorten production time.
As shown in fig. 10, the first notch 11, the second notch 21 and the third notch 31 are rectangular, and have simple construction and convenient processing.
As shown in fig. 1, 3 and 4, an annular sealing ring groove 102 for placing a sealing rubber ring is processed on the top end surface of a frame body 10, a plurality of first mounting holes 101 are processed on the top end surface of the frame body 10, the plurality of first mounting holes 101 are positioned on the outer side of the annular sealing ring groove 102, the annular sealing ring groove 102 and the plurality of first mounting holes 101 are positioned on a connecting plate of an L-shaped aluminum material of a quadrilateral frame 20 above, the first mounting holes 101 are screw holes, the structural space can be fully utilized, the design is reasonable, and the later installation of an upper cover is facilitated.
As shown in fig. 1, a plurality of mounting interfaces 7 are welded on the thin sealing plate 6, so as to facilitate connection between the fuel cell and external equipment.
As shown in fig. 1, 3 and 5, a plurality of second mounting holes 103 are machined on the bottom end surface of the frame body 10, the second mounting holes 103 are positioned on the connecting plate of the L-shaped aluminum material of the lower quadrilateral frame 20, the second mounting holes 103 are screw holes, the structural space can be fully utilized, the design is reasonable, and the later installation of the bottom plate is convenient.
Embodiment two:
The embodiment provides a method for manufacturing a fuel cell box structure, which adopts the fuel cell box structure in the embodiment one, and the method comprises the following steps:
step one: cutting 4 upright posts 1, 4 transverse beams 2 and 4 longitudinal beams 3 according to the required length by utilizing L-shaped aluminum materials (refer to figure 6);
Step two: first cut-outs 11 are respectively formed at both ends of the first side plate 13 of each upright 1, so that first extension portions 12 are respectively formed at both ends of the second side plate 14 of each upright 1, second cut-outs 21 are respectively formed at both ends of the first cross connection plate 23 of each transverse beam 2, second extension portions 22 are respectively formed at both ends of the second cross connection plate 24 of each transverse beam 2, third cut-outs 31 are respectively formed at both ends of the second longitudinal connection plate 34 of each longitudinal beam 3, and third extension portions 32 are respectively formed at both ends of the first longitudinal connection plate 33 of each longitudinal beam 3 (refer to fig. 10);
Step three: the third extension part 32 is abutted to the second notch 21, a containing cavity 8 is formed between the second extension part 22 and the end face of the second longitudinal connecting plate 34, the first extension part 12 is abutted to the containing cavity 8, the second extension part 22 is abutted to the first notch 11 and supported on the end face of the first side plate 13 so as to realize the splicing of any one of the corner positions of the upright post 1, the transverse beam 2 and the longitudinal beam 3 (refer to fig. 10-12), then the corresponding upright post 1, the transverse beam 2 and the longitudinal beam 3 are positioned and clamped by adopting a clamp, and then the frame main body 10 is built by adopting a stirring friction welding process to weld and fix the splicing seams on the corner positions of the upright post 1, the transverse beam 2 and the longitudinal beam 3 (refer to fig. 6);
Step four: positioning cavities 5 with step rabbets 4 are processed on each side surface of the frame main body 10, a thin sealing plate 6 is embedded in each positioning cavity 5, the thin sealing plate 6 is abutted against the step rabbets 4, the thin sealing plate 6 is flush with the surface of the frame main body 10 (refer to fig. 7 and 8), and then the edge of the thin sealing plate 6 is welded and fixed with the frame main body 10 by adopting a stirring friction welding process to form a fuel cell box body (refer to fig. 9);
Step five: an annular seal ring groove 102 for placing a seal rubber ring and a plurality of first mounting holes 101 are processed on the top end surface of the frame body 10, and the first mounting holes are positioned on the outer side of the annular seal ring groove 102 (refer to fig. 1);
Step six: a plurality of second mounting holes 103 (refer to fig. 3 and 5) are machined on the bottom end surface of the frame body 10;
step seven: a plurality of mounting interfaces 7 (see fig. 1) are welded to the thin sealing plate 6.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention are included in the scope of the present invention.
Claims (9)
1. A fuel cell housing structure, characterized in that: the method comprises the steps that a plurality of L-shaped aluminum materials are utilized to build a frame main body (10), the frame main body (10) comprises two quadrilateral frames (20) and 4 upright posts (1) which are vertically distributed at intervals, each quadrilateral frame (20) is composed of 2 transverse beams (2) and2 longitudinal beams (3), the outline of each quadrilateral frame (20) is rectangular or square, each upright post (1), each transverse beam (2) and each 2 longitudinal beam (3) are made of L-shaped aluminum materials, the 4 upright posts (1) are connected to the corner between the two quadrilateral frames (20), positioning cavities (5) with step seam allowance (4) are processed on the L-shaped aluminum materials on each side face of the frame main body (10), each positioning cavity (5) is inlaid with a thin sealing plate (6), the thin sealing plate (6) is abutted to the step seam allowance (4), and the edges of the thin sealing plates (6) are welded with the frame main body (10);
The end part of the upright post (1) is provided with a first notch (11) and a first extension part (12); the end part of the transverse beam (2) is provided with a second notch (21) and a second extension part (22); the end part of the longitudinal beam (3) is provided with a third notch (31) and a third extension part (32);
The transverse beam (2) comprises a first transverse connection plate (23) and a second transverse connection plate (24), the longitudinal beam (3) comprises a first longitudinal connection plate (33) and a second longitudinal connection plate (34), and the upright (1) comprises a first side plate (13) and a second side plate (14); the first notch (11) is arranged at two ends of the first side plate (13), the two ends of the second side plate (14) form the first extension part (12), the second notch (21) is arranged at two ends of the first transverse connection plate (23), the two ends of the second transverse connection plate (24) form the second extension part (22), the third notch (31) is arranged at two ends of the second longitudinal connection plate (34), and the two ends of the first longitudinal connection plate (33) form the third extension part (32);
The third extension part (32) is abutted to the second notch (21), the third extension part (32) is abutted to the end face of the first transverse connection plate (23) and the end face of the second extension part (22) respectively, a containing cavity (8) is formed between the second extension part (22) and the end face of the second longitudinal connection plate (34), the first extension part (12) is abutted to the containing cavity (8), the first extension part (12) is abutted to the side face of the second extension part (22) respectively, the side face of the third extension part (32) and the end face of the second longitudinal connection plate (34), the second extension part (22) is abutted to the first notch (11) and supported on the end face of the first side plate (13) respectively, and the second extension part (22) is abutted to the end face of the first side plate (13) and the side face of the first extension part (12) respectively, so that the connection of the vertical column 1, the transverse beam 2 and the longitudinal beam 3 on any one of the vertical beam (2) and the longitudinal beam (3) on the frame (10) are welded together at any angle after the vertical beam (1) and the longitudinal beam (2) are spliced.
2. A fuel cell case structure according to claim 1, wherein: the first notch (11), the second notch (21) and the third notch (31) are rectangular.
3. A fuel cell case structure according to claim 2, wherein: bao Fengban (6) are flush with the surface of the frame body (10).
4. A fuel cell case structure according to claim 1 or 2 or 3, wherein: an annular seal ring groove (102) for placing a seal ring is processed on the top end surface of the frame body (10).
5. A fuel cell case structure according to claim 4, wherein: a plurality of first mounting holes (101) are machined in the top end surface of the frame body (10), and the first mounting holes (101) are located on the outer side of the annular sealing ring groove (102).
6. A fuel cell case structure according to claim 5, wherein: a plurality of mounting interfaces (7) are welded on the thin sealing plate (6).
7. A fuel cell case structure according to claim 6, wherein: a plurality of second mounting holes (103) are formed in the bottom end face of the frame body (10).
8. A method of manufacturing a fuel cell case structure according to any one of claims 1 to 7, comprising the steps of:
step one: cutting out 4 upright posts (1), 4 transverse beams (2) and 4 longitudinal beams (3) according to the required length by utilizing the L-shaped aluminum material;
Step two: first cut-outs (11) are respectively processed at two ends of a first side plate (13) of each upright post (1), first extension parts (12) are respectively formed at two ends of a second side plate (14) of each upright post (1), second cut-outs (21) are respectively processed at two ends of a first transverse connection plate (23) of each transverse beam (2), second extension parts (22) are respectively formed at two ends of a second transverse connection plate (24) of each transverse beam (2), third cut-outs (31) are respectively processed at two ends of a second longitudinal connection plate (34) of each longitudinal beam (3), and third extension parts (32) are respectively formed at two ends of a first longitudinal connection plate (33) of each longitudinal beam (3);
Step three: the third extension part (32) is abutted to the second notch (21), a containing cavity (8) is formed between the second extension part (22) and the end face of the second longitudinal connecting plate (34), the first extension part (12) is abutted to the containing cavity (8), the second extension part (22) is abutted to the first notch (11) and supported on the end face of the first side plate (13) so as to realize the splicing of any one of the corner positions of the upright post (1), the transverse beam (2) and the longitudinal beam (3), then the corresponding upright post (1), the transverse beam (2) and the longitudinal beam (3) are positioned and clamped by adopting a clamp, and then the splicing seams on the corner positions of the upright post (1), the transverse beam (2) and the longitudinal beam (3) are welded and fixed by adopting a stirring friction welding process so as to build the frame main body (10);
Step four: positioning cavities (5) with step rabbets (4) are processed on each side face of a frame main body (10), a thin sealing plate (6) is embedded in each positioning cavity (5), the thin sealing plate (6) is abutted against the step rabbets (4) to enable Bao Fengban (6) to be flush with the surface of the frame main body (10), and then the edge of Bao Fengban (6) is welded and fixed with the frame main body (10) by adopting a stirring friction welding process to form the fuel cell box body.
9. The method of manufacturing a fuel cell case structure according to claim 8, characterized in that the method further comprises the steps of:
Step five: an annular sealing ring groove (102) for placing a sealing rubber ring and a plurality of first mounting holes (101) are processed on the top end surface of the frame main body (10), and the first mounting holes are positioned on the outer side of the annular sealing ring groove (102);
step six: a plurality of second mounting holes (103) are formed in the bottom end face of the frame main body (10);
step seven: a plurality of mounting interfaces (7) are welded on the thin sealing plate (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210466341.2A CN114843545B (en) | 2022-04-26 | 2022-04-26 | Fuel cell box structure and manufacturing method |
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| CN202210466341.2A CN114843545B (en) | 2022-04-26 | 2022-04-26 | Fuel cell box structure and manufacturing method |
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| CN114843545B true CN114843545B (en) | 2024-06-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019196877A1 (en) * | 2018-04-13 | 2019-10-17 | 爱驰汽车有限公司 | Battery pack and battery case thereof |
| CN210224136U (en) * | 2019-09-30 | 2020-03-31 | 江西优特汽车技术有限公司 | Lightweight aluminium alloy box structure |
| CN111653814A (en) * | 2020-07-07 | 2020-09-11 | 风氢扬科技(杭州)有限公司 | Novel extrusion fuel cell system installation support |
| CN113328186A (en) * | 2021-04-20 | 2021-08-31 | 张世锋 | Battery sealing storage box based on new energy |
-
2022
- 2022-04-26 CN CN202210466341.2A patent/CN114843545B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019196877A1 (en) * | 2018-04-13 | 2019-10-17 | 爱驰汽车有限公司 | Battery pack and battery case thereof |
| CN210224136U (en) * | 2019-09-30 | 2020-03-31 | 江西优特汽车技术有限公司 | Lightweight aluminium alloy box structure |
| CN111653814A (en) * | 2020-07-07 | 2020-09-11 | 风氢扬科技(杭州)有限公司 | Novel extrusion fuel cell system installation support |
| CN113328186A (en) * | 2021-04-20 | 2021-08-31 | 张世锋 | Battery sealing storage box based on new energy |
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| CN114843545A (en) | 2022-08-02 |
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