A charging device sheet metal case

Abstract

A charging equipment sheet metal case, including first sheet metal frame plate, second sheet metal frame plate and intermediate sheet metal layer plate, the first sheet metal frame plate and the second sheet metal frame plate butt joint form the hollow case main body, the intermediate sheet metal layer plate is installed on the case main body to form the charging equipment sheet metal case, at least one side of the first sheet metal frame plate is butt joint with at least one side of the second sheet metal frame plate, at least one side of the first sheet metal frame plate is formed with butt joint gap and / or butt joint flange, the position of at least one side of the second sheet metal frame plate is provided with butt joint flange and / or butt joint gap opposite the butt joint gap, and the butt joint flange is overlapped on the butt joint gap, the utility model discloses through butt joint flange overlapped on butt joint gap, can form the gasket between the first sheet metal frame plate and the second sheet metal frame plate, to enhance the tear resistance of the first and the second sheet metal frame plate joint, prevent its tear.

Description

Technical Field

[0001] This utility model relates to the field of charging equipment, and more specifically, to a sheet metal chassis for charging equipment. Background Technology

[0002] As the power of charging equipment increases, its weight also increases. To ensure safety, charging equipment is generally housed in a chassis. For heavier charging equipment, the strength requirements for the chassis are often quite stringent. Therefore, sheet metal is commonly used to construct the chassis in current technology. However, sheet metal chassis are prone to tearing at the joints of the individual panels, causing damage to the chassis. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a sheet metal chassis for charging equipment that is not easily torn, in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a sheet metal chassis for charging equipment is constructed, including a first sheet metal frame plate, a second sheet metal frame plate, and an intermediate sheet metal layer plate; the first sheet metal frame plate and the second sheet metal frame plate are joined together to form a hollow chassis body, and the intermediate sheet metal layer plate is installed on the chassis body to form the sheet metal chassis for charging equipment; at least one side of the first sheet metal frame plate is joined with at least one side of the second sheet metal frame plate. A butt notch is formed on at least one side of the first sheet metal frame plate, and a butt flange is provided on at least one side of the second sheet metal frame plate opposite to the butt notch, the butt flange overlapping the butt notch; and / or A butt flange is formed on at least one side of the first sheet metal frame plate, and a butt notch is provided on at least one side of the second sheet metal frame plate opposite to the butt flange, and the butt flange overlaps the butt notch.

[0005] In the sheet metal chassis of the charging equipment described in this utility model, the first sheet metal frame plate and the second sheet metal frame plate are both U-shaped sheet metal frame plates, and the first sheet metal frame plate and the second sheet metal frame plate are joined together to form a hollow rectangular chassis body.

[0006] In the sheet metal chassis of the charging equipment described in this utility model, the first vertical side of the first sheet metal frame plate is connected to the first vertical side of the second sheet metal frame plate; the second vertical side of the first sheet metal frame plate is connected to the second vertical side of the second sheet metal frame plate; the first horizontal side of the first sheet metal frame plate is connected to the first horizontal side of the second sheet metal frame plate; and the second horizontal side of the first sheet metal frame plate is connected to the second horizontal side of the second sheet metal frame plate. A first butt notch is formed on the first vertical side of the first sheet metal frame plate, and a first butt fold is formed on the first vertical side of the second sheet metal frame plate; a second butt notch is formed on the second vertical side of the first sheet metal frame plate, and a second butt fold is formed on the second vertical side of the second sheet metal frame plate; a third butt notch is formed on the first horizontal side of the first sheet metal frame plate, and a third butt fold is formed on the first horizontal side of the second sheet metal frame plate; a fourth butt notch is formed on the second horizontal side of the first sheet metal frame plate, and a fourth butt fold is formed on the second horizontal side of the second sheet metal frame plate; the first butt fold overlaps the first butt notch; the second butt fold overlaps the second butt notch; the third butt fold overlaps the third butt notch; and the fourth butt fold overlaps the fourth butt notch.

[0007] In the sheet metal chassis of the charging equipment described in this utility model, the mating notch is recessed by a first distance in the direction away from the second sheet metal frame plate; the mating fold is an L-shaped fold, the L-shaped fold includes a vertical side extending perpendicular to the second sheet metal frame plate and a horizontal side extending parallel to the second sheet metal frame plate, the horizontal side extends from the vertical side toward the first sheet metal frame plate by a second distance, the second distance being greater than the first distance, so that the horizontal side overlaps the mating notch.

[0008] In the sheet metal chassis of the charging equipment described in this utility model, the first sheet metal frame plate includes a first U-shaped vertical side plate and a first horizontal side plate, a second horizontal side plate and a third horizontal side plate arranged around the three vertical sides of the first U-shaped vertical side plate. The second sheet metal frame includes a second U-shaped vertical side plate and a U-shaped horizontal side plate arranged around the second U-shaped vertical side plate; The first vertical side of the first U-shaped vertical side plate is connected to the first vertical side of the second U-shaped vertical side plate; the second vertical side of the first U-shaped vertical side plate is connected to the second vertical side of the second U-shaped vertical side plate. The first side of the first horizontal side plate is connected to the first side of the U-shaped horizontal side plate, and the first side of the third horizontal side plate is connected to the second side of the U-shaped horizontal side plate.

[0009] In the sheet metal chassis of the charging equipment described in this utility model, a first arc-shaped notch is formed between the second side of the first horizontal side plate and the first side of the second horizontal side plate; a first arc-shaped corner plate is provided at the first arc-shaped notch to overlap the second side of the first horizontal side plate and the first side of the second horizontal side plate.

[0010] In the sheet metal chassis of the charging equipment described in this utility model, the second side of the first horizontal side plate is recessed by a third distance to form a fifth mating notch; The first arc-shaped corner plate includes a first arc-shaped base plate, and a first L-shaped flange and a second L-shaped flange located at both ends of the first arc-shaped base plate; The first L-shaped fold includes a first vertical edge extending perpendicularly to the first arc-shaped substrate from the portion of the first side of the first arc-shaped substrate facing the fifth mating notch, and a first horizontal edge extending a fourth distance toward the first horizontal side plate, the fourth distance being greater than the third distance, so that the first horizontal edge overlaps the fifth mating notch. The second L-shaped fold includes a second vertical edge extending perpendicularly to the first arcuate substrate from the second side edge of the first arcuate substrate, and a second horizontal edge extending toward the second horizontal side plate, wherein the second vertical edge abuts against the first side edge of the second horizontal side plate.

[0011] In the sheet metal chassis of the charging equipment described in this utility model, a second arc-shaped notch is formed between the second side of the third horizontal side plate and the second side of the second horizontal side plate; a second arc-shaped corner plate is provided at the second arc-shaped notch to overlap the second side of the third horizontal side plate and the second side of the second horizontal side plate.

[0012] In the sheet metal chassis of the charging equipment described in this utility model, the second side of the third horizontal side plate is recessed by a fifth distance to form a sixth mating notch; The second arc-shaped corner plate includes a second arc-shaped base plate, and a third L-shaped folded edge and a fourth L-shaped folded edge located at both ends of the second arc-shaped base plate; The third L-shaped fold includes a third vertical edge extending perpendicularly to the second arc-shaped substrate from the portion of the first side of the second arc-shaped substrate facing the sixth mating notch, and a third horizontal edge extending a sixth distance toward the third horizontal side plate, the sixth distance being greater than the fifth distance, so that the third horizontal edge overlaps the sixth mating notch. The fourth L-shaped fold includes a fourth vertical edge extending perpendicularly to the second arcuate substrate from the second side edge of the second arcuate substrate, and a fourth horizontal edge extending toward the second horizontal side plate, wherein the fourth vertical edge abuts against the second side edge of the second horizontal side plate.

[0013] In the sheet metal chassis of the charging equipment described in this utility model, a plurality of first protrusions are provided on the first side of the intermediate sheet metal layer, and a plurality of second protrusions are provided on the second side of the intermediate sheet metal layer. Multiple first limiting holes are provided at the positions of the first sheet metal frame plate opposite to the multiple first protrusions; Multiple second limiting holes are provided at the positions of the second sheet metal frame plate opposite to the multiple second protrusions; Each first protrusion is inserted into one of the first limiting holes in a corresponding manner; Each second protrusion is inserted into a corresponding second limiting hole.

[0014] This utility model discloses a sheet metal chassis for a charging device, comprising a first sheet metal frame plate, a second sheet metal frame plate, and an intermediate sheet metal shelf. The first sheet metal frame plate and the second sheet metal frame plate are joined together to form a hollow chassis body. The intermediate sheet metal shelf is installed on the chassis body to form the sheet metal chassis for the charging device. At least one side of the first sheet metal frame plate is joined with at least one side of the second sheet metal frame plate. A notch is formed on the at least one side of the first sheet metal frame plate. A flange is provided on the at least one side of the second sheet metal frame plate opposite to the notch. The flange overlaps the notch. By having the flange overlap the notch, a pad is formed between the first sheet metal frame plate and the second sheet metal frame plate, thereby enhancing the tear resistance at the joint between the first sheet metal frame plate and the second sheet metal frame plate and preventing tearing. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of a preferred embodiment of the sheet metal chassis for the charging equipment of this utility model; Figure 2 This is a structural schematic diagram from another angle of a preferred embodiment of the sheet metal chassis for the charging equipment of this utility model; Figure 3 This is an exploded view of another preferred embodiment of the sheet metal chassis of the charging equipment of this utility model; Figure 4 This is a schematic diagram of a preferred embodiment of the first arc-shaped corner plate of the sheet metal chassis of the charging equipment of this utility model; Figure 5 This is a schematic diagram of a preferred embodiment of the second arc-shaped corner plate of the sheet metal chassis of the charging equipment of this utility model; Figure 6 This is an enlarged view of the L-shaped folded edge of the sheet metal casing of the charging equipment of this utility model. Detailed Implementation

[0016] 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.

[0017] Figure 1 This is a schematic diagram of a preferred embodiment of the sheet metal chassis for the charging equipment of this utility model; Figure 2 This is a structural schematic diagram from another angle of a preferred embodiment of the sheet metal chassis of the charging equipment of this utility model. (See diagram below.) Figures 1-2 As shown, the sheet metal chassis of the charging equipment of the present invention includes a first sheet metal frame plate 100, a second sheet metal frame plate 200, and an intermediate sheet metal shelf 300; the first sheet metal frame plate 100 and the second sheet metal frame plate 200 are joined to form a hollow chassis body, and the intermediate sheet metal shelf 300 is mounted on the chassis body to form the sheet metal chassis of the charging equipment. At least one side 110 of the first sheet metal frame plate 100 is joined to at least one side 210 of the second sheet metal frame plate 200.

[0018] In this invention, sheet metal work is a comprehensive cold processing technology for thin metal sheets (usually less than 6mm), including shearing, punching / cutting / compound cutting, bending, riveting, splicing, and forming; its significant feature is that the thickness of the same part is consistent. In the prior art, the first sheet metal frame plate 100 and the second sheet metal frame plate 200 are directly butted together, so their butt joints (i.e., each butt joint side) are usually prone to tearing, causing damage to the chassis. In this invention, a butt joint notch 111 is formed on at least one side 110 of the first sheet metal frame plate 100, and a butt joint flange 211 is provided on at least one side 210 of the second sheet metal frame plate 200 opposite to the butt joint notch 111, and the butt joint flange 211 overlaps the butt joint notch 111.

[0019] In another preferred embodiment of the present invention, a butt flange is formed on at least one side 110 of the first sheet metal frame plate 100, and a butt notch is provided on at least one side 210 of the second sheet metal frame plate 200 opposite to the butt flange, and the butt flange overlaps on the butt notch.

[0020] In another preferred embodiment of the present invention, a notch 111 is formed on at least one side 110 of the first sheet metal frame plate 100, and a notch 211 is provided on at least one side 210 of the second sheet metal frame plate 200 opposite to the notch 111. The notch 211 overlaps the notch 111.

[0021] This utility model discloses a sheet metal chassis for a charging device, comprising a first sheet metal frame plate, a second sheet metal frame plate, and an intermediate sheet metal shelf. The first sheet metal frame plate and the second sheet metal frame plate are joined together to form a hollow chassis body. The intermediate sheet metal shelf is installed on the chassis body to form the sheet metal chassis for the charging device. At least one side of the first sheet metal frame plate is joined with at least one side of the second sheet metal frame plate. A notch is formed on the at least one side of the first sheet metal frame plate. A flange is provided on the at least one side of the second sheet metal frame plate opposite to the notch. The flange overlaps the notch. By having the flange overlap the notch, a pad is formed between the first sheet metal frame plate and the second sheet metal frame plate, thereby enhancing the tear resistance at the joint between the first sheet metal frame plate and the second sheet metal frame plate and preventing tearing.

[0022] Figure 3 This is an exploded view of another preferred embodiment of the sheet metal chassis of the charging equipment of this utility model. Figure 4 This is a schematic diagram of a preferred embodiment of the first arc-shaped corner plate of the sheet metal chassis of the charging equipment of this utility model. Figure 5 This is a schematic diagram of a preferred embodiment of the second arc-shaped corner plate of the sheet metal chassis of the charging equipment of this utility model. Figure 6 This is an enlarged view of the L-shaped folded edge of the sheet metal casing of the charging equipment of this utility model.

[0023] like Figure 3 As shown, the sheet metal chassis of the charging equipment of the present invention includes a first sheet metal frame plate 100, a second sheet metal frame plate 200, and an intermediate sheet metal shelf 300; the first sheet metal frame plate 100 and the second sheet metal frame plate 200 are joined to form a hollow chassis body, and the intermediate sheet metal shelf 300 is installed on the chassis body to form the sheet metal chassis of the charging equipment. The first sheet metal frame plate 100 and the second sheet metal frame plate 200 are both U-shaped sheet metal frame plates, and the first sheet metal frame plate 100 and the second sheet metal frame plate 200 are joined to form a hollow rectangular chassis body.

[0024] like Figure 3 As shown, the first vertical side 110 of the first sheet metal frame 100 is connected to the first vertical side 210 of the second sheet metal frame 200; the second vertical side 120 of the first sheet metal frame 100 is connected to the second vertical side 220 of the second sheet metal frame 200; the first horizontal side 130 of the first sheet metal frame 100 is connected to the first horizontal side 230 of the second sheet metal frame 200; and the second horizontal side 140 of the first sheet metal frame 100 is connected to the second horizontal side 240 of the second sheet metal frame 200.

[0025] exist Figure 3In the preferred embodiment shown, the first sheet metal frame 100 includes a first U-shaped vertical side plate 101 and a first horizontal side plate 102, a second horizontal side plate 103, and a third horizontal side plate 104 arranged around the three vertical sides of the first U-shaped vertical side plate 101; the second sheet metal frame 200 includes a second U-shaped vertical side plate 201 and a U-shaped horizontal side plate 202 arranged around the second U-shaped vertical side plate 201; the first vertical side 110 of the first U-shaped vertical side plate 101 is connected to the first vertical side 210 of the second U-shaped vertical side plate 201; the second vertical side 120 of the first U-shaped vertical side plate 101 is connected to the second vertical side 220 of the second U-shaped vertical side plate 201; the first side 130 of the first horizontal side plate 102 is connected to the first side of the U-shaped horizontal side plate 202, and the first side 140 of the third horizontal side plate 104 is connected to the second side 220 of the U-shaped horizontal side plate 202. That is, the first vertical side 110 and the second vertical side 120 of the first sheet metal frame plate 100 are respectively the first vertical side 110 and the second vertical side 120 of the first U-shaped vertical side plate 101, and the first horizontal side 130 and the second horizontal side 140 of the first sheet metal frame plate 100 are respectively the first side 130 of the first horizontal side plate 102 and the first side 140 of the third horizontal side plate 104. Similarly, the first vertical side 210 and the second vertical side 220 of the second sheet metal frame plate 200 are respectively the first vertical side 210 and the second vertical side plate 220 of the second U-shaped vertical side plate 201. The first horizontal side 230 and the second horizontal side 240 of the second sheet metal frame plate 200 are respectively the first side 230 and the second side 240 of the U-shaped horizontal side plate 202.

[0026] like Figure 3As shown, a first butt notch 111 is formed on the first vertical side 110 of the first sheet metal frame plate 100, and a first butt flange 211 is formed on the first vertical side 210 of the second sheet metal frame plate 200; a second butt notch 121 is formed on the second vertical side 120 of the first sheet metal frame plate 100, and a second butt flange 211 is formed on the second vertical side 220 of the second sheet metal frame plate 200; a third butt notch 131 is formed on the first horizontal side 130 of the first sheet metal frame plate 100, and a third butt notch 131 is formed on the first horizontal side 130 of the second sheet metal frame plate 200. A third butt flange 231 is formed on the flat side 230; a fourth butt notch 141 is formed on the second horizontal side 140 of the first sheet metal frame 100, and a fourth butt flange is formed on the second horizontal side 240 of the second sheet metal frame 200; the first butt flange 211 overlaps with the first butt notch 111; the second butt flange overlaps with the second butt notch 121; the third butt flange 231 overlaps with the third butt notch 131; and the fourth butt flange overlaps with the fourth butt notch 141.

[0027] like Figure 3 As shown, the mating notches 111, 121, 131, and 141 are respectively recessed a first distance in the direction away from the second sheet metal frame plate 200. Figure 6 As shown, the butt joint edges 211 and 231 are both L-shaped edges. The L-shaped edge includes a vertical edge 2111 extending perpendicularly to the second sheet metal frame 200 and a horizontal edge 2112 extending parallel to the second sheet metal frame 200. The horizontal edge 2112 extends a second distance from the vertical edge 2111 toward the first sheet metal frame 100, and the second distance is greater than the first distance, so that the horizontal edge 2111 overlaps the butt joint notch.

[0028] Further as Figure 3 As shown, a first arc-shaped notch is formed between the second side 1021 of the first horizontal side plate 102 and the first side 1031 of the second horizontal side plate 103; a first arc-shaped corner plate 400 is provided at the first arc-shaped notch to overlap the second side 1021 of the first horizontal side plate 102 and the first side 1031 of the second horizontal side plate 103. The second side 1021 of the first horizontal side plate 102 is recessed by a third distance to form a fifth mating notch.

[0029] like Figures 3-4As shown, the first arc-shaped corner plate 400 includes a first arc-shaped base plate 410, and a first L-shaped flange 420 and a second L-shaped flange 430 located at both ends of the first arc-shaped base plate 410. The first L-shaped flange 420 includes a first vertical edge 421 extending perpendicularly to the first arc-shaped base plate 410 from the portion of the first side of the first arc-shaped base plate 410 directly opposite the fifth mating notch, and a first horizontal edge 422 extending a fourth distance toward the first horizontal side plate 102, the fourth distance being greater than the third distance, so that the first horizontal edge 422 overlaps the fifth mating notch; the area of ​​the first side of the first arc-shaped base plate 410 other than the portion of the first side directly opposite the fifth mating notch abuts against the area of ​​the second side 1021 of the first horizontal side plate 102 other than the fifth mating notch. The second L-shaped folded edge 430 includes a second vertical edge 431 extending perpendicularly to the first arcuate substrate 410 from the second side edge of the first arcuate substrate 410, and a second horizontal edge 432 extending toward the second horizontal side plate 103. The second vertical edge 431 abuts against the first side edge 1031 of the second horizontal side plate 103.

[0030] like Figure 3 As shown, a second arc-shaped notch is formed between the second side 1041 of the third horizontal side plate 104 and the second side 1032 of the second horizontal side plate 103; a second arc-shaped corner plate 500 is provided at the second arc-shaped notch to overlap the second side 1041 of the third horizontal side plate 104 and the second side 1032 of the second horizontal side plate 103. The second side 1041 of the third horizontal side plate 104 is recessed by a fifth distance to form a sixth mating notch.

[0031] like Figure 3 and 5As shown, the second arc-shaped corner plate 500 includes a second arc-shaped base plate 510, and a third L-shaped folded edge 520 and a fourth L-shaped folded edge 530 located at both ends of the second arc-shaped base plate 510, respectively; the third L-shaped folded edge 520 includes a third vertical edge 521 extending perpendicularly to the second arc-shaped base plate 510 from the portion of the first side of the second arc-shaped base plate 510 facing the sixth mating notch, and a third horizontal edge 522 extending a sixth distance toward the third horizontal side plate 104, the sixth distance being greater than the fifth distance, so that the third horizontal edge 522 overlaps the sixth mating notch; the area other than the portion of the first side of the second arc-shaped base plate 510 facing the sixth mating notch abuts against the portion of the second side 1041 of the third horizontal side plate 104 other than the sixth mating notch. The fourth L-shaped folded edge 530 includes a fourth vertical edge 531 extending perpendicularly to the second arcuate substrate 510 from the second side edge of the second arcuate substrate 510, and a fourth horizontal edge 532 extending toward the second horizontal side plate 103, wherein the fourth vertical edge 531 abuts against the second side edge 1032 of the second horizontal side plate 103.

[0032] Further as Figure 3 As shown, the first side of the intermediate sheet metal layer 300 is provided with a plurality of first protrusions 310, and the second side of the intermediate sheet metal layer 300 is provided with a plurality of second protrusions 320; the first sheet metal frame 100 is provided with a plurality of first limiting holes 330 at the position opposite to the plurality of first protrusions 310; the second sheet metal frame 200 is provided with a plurality of second limiting holes 340 at the position opposite to the plurality of second protrusions 320; each first protrusion 310 is inserted into a first limiting hole 330 in a one-to-one correspondence; each second protrusion 320 is inserted into a second limiting hole 340 in a one-to-one correspondence.

[0033] In a further preferred embodiment of the present invention, as described above, a butt flange may be formed on at least one side 110 of the first sheet metal frame 100, and a butt notch may be provided on at least one side 210 of the second sheet metal frame 200 opposite to the butt flange, with the butt flange overlapping the butt notch.

[0034] In a further preferred embodiment of the present invention, as described above, a notch 111 and a flange are formed on at least one side 110 of the first sheet metal frame 100, and a flange 211 and a notch are provided on at least one side 210 of the second sheet metal frame 200 opposite to the notch 111 and the flange, with the corresponding flange 211 overlapping the corresponding notch 111.

[0035] The sheet metal casing for the charging equipment according to this utility model includes adding a folded edge at each joint of the first sheet metal frame plate 100 and the second sheet metal frame plate 200 to seal the weak points that are prone to tearing. This effectively prevents the possibility of the two plates splitting due to external impact. Furthermore, when the first sheet metal frame plate 100 and the second sheet metal frame plate 200 are further welded using welding technology, the original flat weld structure can be transformed into a lap weld with a backing, which can more effectively prevent the possibility of the two plates splitting due to external impact. Furthermore, protrusions are provided on the side of the intermediate sheet metal layer 300, and limiting holes are provided at the corresponding positions of the first sheet metal frame 100 and the second sheet metal frame 200. By interlocking the protrusions and the limiting holes, a riveting structure is formed, which can enhance the impact strength of the intermediate sheet metal layer 300 from the top and bottom, while also ensuring the height dimension. Therefore, only a 2.0mm thick aluminum plate is needed to ensure the strength of the charging equipment sheet metal chassis, reduce weight, and improve heat dissipation.

[0036] Although this utility model has been described through specific embodiments, those skilled in the art should understand that various modifications and equivalent substitutions can be made to this utility model without departing from its scope. Furthermore, various modifications can be made to this utility model for specific situations or materials without departing from its scope. Therefore, this utility model is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of this utility model.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sheet metal chassis for a charging device, characterized in that, It includes a first sheet metal frame plate, a second sheet metal frame plate, and an intermediate sheet metal layer plate; the first sheet metal frame plate and the second sheet metal frame plate are joined together to form a hollow chassis body, and the intermediate sheet metal layer plate is installed on the chassis body to form the sheet metal chassis of the charging equipment; at least one side of the first sheet metal frame plate is joined with at least one side of the second sheet metal frame plate. A butt notch is formed on at least one side of the first sheet metal frame plate, and a butt flange is provided on at least one side of the second sheet metal frame plate opposite to the butt notch, the butt flange overlapping the butt notch; and / or A butt flange is formed on at least one side of the first sheet metal frame plate, and a butt notch is provided on at least one side of the second sheet metal frame plate opposite to the butt flange, and the butt flange overlaps the butt notch.

2. The sheet metal chassis of the charging equipment according to claim 1, characterized in that, The first sheet metal frame and the second sheet metal frame are both U-shaped sheet metal frame panels, and the first sheet metal frame and the second sheet metal frame are joined together to form a hollow rectangular chassis body.

3. The sheet metal chassis of the charging equipment according to claim 2, characterized in that, The first vertical side of the first sheet metal frame plate is connected to the first vertical side of the second sheet metal frame plate; the second vertical side of the first sheet metal frame plate is connected to the second vertical side of the second sheet metal frame plate; the first horizontal side of the first sheet metal frame plate is connected to the first horizontal side of the second sheet metal frame plate; the second horizontal side of the first sheet metal frame plate is connected to the second horizontal side of the second sheet metal frame plate. A first butt notch is formed on the first vertical side of the first sheet metal frame plate, and a first butt fold is formed on the first vertical side of the second sheet metal frame plate; a second butt notch is formed on the second vertical side of the first sheet metal frame plate, and a second butt fold is formed on the second vertical side of the second sheet metal frame plate; a third butt notch is formed on the first horizontal side of the first sheet metal frame plate, and a third butt fold is formed on the first horizontal side of the second sheet metal frame plate; a fourth butt notch is formed on the second horizontal side of the first sheet metal frame plate, and a fourth butt fold is formed on the second horizontal side of the second sheet metal frame plate; the first butt fold overlaps the first butt notch; the second butt fold overlaps the second butt notch; the third butt fold overlaps the third butt notch; and the fourth butt fold overlaps the fourth butt notch.

4. The sheet metal chassis of the charging equipment according to any one of claims 1 to 3, characterized in that, The notch is recessed a first distance away from the second sheet metal frame; the notch is an L-shaped notch, which includes a vertical edge extending perpendicular to the second sheet metal frame and a horizontal edge extending parallel to the second sheet metal frame. The horizontal edge extends a second distance from the vertical edge toward the first sheet metal frame, and the second distance is greater than the first distance, so that the horizontal edge overlaps the notch.

5. The sheet metal chassis of the charging equipment according to claim 3, characterized in that, The first sheet metal frame includes a first U-shaped vertical side plate and a first horizontal side plate, a second horizontal side plate, and a third horizontal side plate arranged around the three vertical sides of the first U-shaped vertical side plate; The second sheet metal frame includes a second U-shaped vertical side plate and a U-shaped horizontal side plate arranged around the second U-shaped vertical side plate; The first vertical side of the first U-shaped vertical side plate is connected to the first vertical side of the second U-shaped vertical side plate; the second vertical side of the first U-shaped vertical side plate is connected to the second vertical side of the second U-shaped vertical side plate. The first side of the first horizontal side plate is connected to the first side of the U-shaped horizontal side plate, and the first side of the third horizontal side plate is connected to the second side of the U-shaped horizontal side plate.

6. The sheet metal chassis of the charging equipment according to claim 5, characterized in that, A first arc-shaped notch is formed between the second side of the first horizontal side plate and the first side of the second horizontal side plate; a first arc-shaped corner plate is provided at the first arc-shaped notch to overlap the second side of the first horizontal side plate and the first side of the second horizontal side plate.

7. The sheet metal chassis of the charging equipment according to claim 6, characterized in that, The second side of the first horizontal side plate is recessed by a third distance to form a fifth mating notch; The first arc-shaped corner plate includes a first arc-shaped base plate, and a first L-shaped flange and a second L-shaped flange located at both ends of the first arc-shaped base plate; The first L-shaped fold includes a first vertical edge extending perpendicularly to the first arc-shaped substrate from the portion of the first side of the first arc-shaped substrate facing the fifth mating notch, and a first horizontal edge extending a fourth distance toward the first horizontal side plate, the fourth distance being greater than the third distance, so that the first horizontal edge overlaps the fifth mating notch. The second L-shaped fold includes a second vertical edge extending perpendicularly to the first arcuate substrate from the second side edge of the first arcuate substrate, and a second horizontal edge extending toward the second horizontal side plate, wherein the second vertical edge abuts against the first side edge of the second horizontal side plate.

8. The sheet metal chassis of the charging equipment according to claim 5, characterized in that, A second arc-shaped notch is formed between the second side of the third horizontal side plate and the second side of the second horizontal side plate; a second arc-shaped corner plate is provided at the second arc-shaped notch to overlap the second side of the third horizontal side plate and the second side of the second horizontal side plate.

9. The sheet metal chassis of the charging equipment according to claim 8, characterized in that, The second side of the third horizontal side plate is recessed by a fifth distance to form a sixth mating notch; The second arc-shaped corner plate includes a second arc-shaped base plate, and a third L-shaped folded edge and a fourth L-shaped folded edge located at both ends of the second arc-shaped base plate; The third L-shaped fold includes a third vertical edge extending perpendicularly to the second arc-shaped substrate from the portion of the first side of the second arc-shaped substrate facing the sixth mating notch, and a third horizontal edge extending a sixth distance toward the third horizontal side plate, the sixth distance being greater than the fifth distance, so that the third horizontal edge overlaps the sixth mating notch. The fourth L-shaped fold includes a fourth vertical edge extending perpendicularly to the second arcuate substrate from the second side edge of the second arcuate substrate, and a fourth horizontal edge extending toward the second horizontal side plate, wherein the fourth vertical edge abuts against the second side edge of the second horizontal side plate.

10. The sheet metal chassis of the charging equipment according to any one of claims 1 to 3, characterized in that, The first side of the intermediate sheet metal layer is provided with a plurality of first protrusions, and the second side of the intermediate sheet metal layer is provided with a plurality of second protrusions. Multiple first limiting holes are provided at the positions of the first sheet metal frame plate opposite to the multiple first protrusions; Multiple second limiting holes are provided at the positions of the second sheet metal frame plate opposite to the multiple second protrusions; Each first protrusion is inserted into one of the first limiting holes in a corresponding manner; Each second protrusion is inserted into a corresponding second limiting hole.

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