Battery case sealing and shielding structure suitable for spraying profile on vertical plane

Abstract

The battery shell sealing and shielding structure comprises an upper shield, a lower shield, a skid and an inflation mechanism, upper buckle plates are arranged on the two sides of the upper shield, and upper sealing grooves are formed in the upper buckle plates; a lower buckle plate is arranged at one end of the lower shield, and a lower sealing groove corresponding to the upper sealing groove in position is formed in the lower buckle plate; an inner ring sealing assembly is installed on the outer edge of the lower shield, and an inner ring inflation rubber strip is arranged in the inner ring rubber strip installation groove. Outer ring sealing assemblies are further arranged on the two sides of the lower shield, and outer ring inflation rubber strips are arranged in outer ring rubber strip installation grooves. An inflation connector assembly is arranged on the skid, and an inflation female head matched with the inflation male head is arranged at the upper end of the ventilation guide pipe. After spraying is completed, the outer ring inflation rubber strip and the inner ring inflation rubber strip are deflated, a gap is reserved for disassembly of the battery shell, the sealing and shielding effects of the battery shell are guaranteed, meanwhile, the disassembly difficulty of the battery shell is lowered, and the situation that a coating and the battery shell are damaged in the battery shell disassembly process is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of battery shell spraying shielding equipment, and particularly relates to a battery shell sealing shielding structure suitable for spraying profile on a vertical plane. BACKGROUND

[0002] Under the background of rapid development of new energy automobile industry, the safety, reliability and service life of power battery as a core energy storage component directly determine the performance of the whole vehicle. The power battery shell as a key protection carrier of the battery needs to have excellent corrosion resistance, insulation and structural strength performance. In order to meet the above performance requirements, the industry generally adopts the process of spraying treatment on the contact surface between the battery shell and the upper cover, so as to improve the comprehensive performance of the battery shell by forming a uniform spraying coating.

[0003] In this spraying process, the surface of the battery shell which does not need to be sprayed (such as non-contact surface, assembly reference surface, etc.) needs to be strictly sealed and shielded, and only the contact surface to be sprayed is exposed, so as to ensure that the spraying coating is deposited only in the target area, and to avoid the problem of coating pollution of non-target surface, which leads to the decrease of assembly precision and abnormal insulation performance.

[0004] At present, for the sealing and shielding of the spraying surface of the battery shell, the industry generally adopts the traditional technical scheme of strong extrusion of sealing strips. This scheme tightly extrudes the elastic sealing strips (such as rubber strips, silica gel strips) on the upper surface or side wall of the battery shell, forms a sealing surface by interference fit between the sealing strip and the surface of the shell, and blocks the coating in the shielding area during the spraying process. However, this traditional technical scheme has significant defects, as follows: Firstly, the problem of difficult disassembly: in order to ensure the sealing reliability, the sealing strip needs to form a large extrusion force with the side wall of the battery shell, which results in strong friction and adsorption force between the sealing strip and the surface of the shell. After the spraying process is completed, the operator needs to exert a large external force to peel off the battery shell from the shielding structure, which not only increases the process time and labor cost, but also easily causes deformation and damage of the sealing strip or the battery shell due to uneven external force.

[0005] Secondly, the problem of coating damage: during the disassembly process, the large extrusion force and friction force between the sealing strip and the spraying surface of the battery shell (which has formed a spraying coating) will directly scratch and wear the solidified (or semi-solidified) powder coating. Lightly, it will cause uneven coating thickness and scratches on the surface, affecting the corrosion resistance and insulation performance of the coating; heavily, it will cause partial peeling of the coating, exposing the battery shell substrate, which needs to be re-sprayed, greatly increasing the production failure rate and cost.

[0006] Third, the shell scratch risk: if the sealing strip in the extrusion process due to size deviation, installation misplacement and other problems with the battery shell non-spraying area (such as substrate surface) contact, the external force during disassembly will cause the sealing strip and the substrate surface relative sliding, easy to produce scratch on the battery shell substrate. Such scratches not only affect the appearance quality of the battery shell, but also may weaken the structural strength of the shell, there is a security risk of shell cracking due to stress concentration. SUMMARY

[0007] The purpose of the present application is to overcome the deficiencies in the prior art, provide a battery shell sealing shielding structure suitable for spraying profile on the vertical plane, can adapt to the spraying profile of the battery shell on the vertical plane, and consider the shielding reliability and disassembly convenience, and can avoid coating damage and shell scratch.

[0008] In order to achieve the above purpose, the technical scheme adopted by the present application is: A battery shell sealing shielding structure suitable for spraying profile on the vertical plane, comprising: The upper shielding is a lower open cover structure, and a plurality of longitudinal and transverse interlaced skeletons are arranged in the upper shielding. The upper shielding is provided with an upper buckle plate on both sides, and the upper buckle plate is provided with an upper sealing groove. The lower shielding is arranged at the opening of the battery shell. One end of the lower shielding is provided with a lower buckle plate, and the lower buckle plate is provided with a lower sealing groove corresponding to the position of the upper sealing groove. The inside of the upper sealing groove and the lower sealing groove is provided with a sealing strip. The outer edge of the lower shielding is provided with an inner ring sealing assembly. The inner ring sealing assembly is a U-shaped structure, and is shaped according to the profile of the inner ring of the to-be-sprayed area of the battery shell. The outer side of the inner ring sealing assembly is provided with an inner ring rubber strip mounting groove, and the inner ring rubber strip mounting groove is provided with an inner ring inflatable rubber strip. Before inflation, there is a gap between the inner ring inflatable rubber strip and the inner cavity of the battery shell. After inflation, the inner ring inflatable rubber strip abuts against the inner cavity side wall of the battery shell. The lower shielding is provided with an outer ring sealing assembly on both sides. The outer ring sealing assembly comprises at least two support arms. One end of the support arm is connected with the lower shielding, and the other end of the support arm is connected with a side beam. The side beam is provided with a connecting plate. The side of the connecting plate close to the battery shell is provided with a mounting seat. The side of the mounting seat is provided with an outer ring rubber strip mounting groove. The outer ring rubber strip mounting groove is provided with an outer ring inflatable rubber strip. Before inflation, there is a gap between the outer ring inflatable rubber strip and the outer wall of the battery shell. After inflation, the outer ring inflatable rubber strip abuts against the outer wall of the battery shell. The skid is provided with a bracket and a supporting plate. The skid is provided with an inflation connector assembly. The inflation connector assembly comprises a mounting frame fixedly installed on the skid. The mounting frame is provided with at least one inflation male head. The inflation male head is communicated with the outer ring inflatable rubber strip and the inner ring inflatable rubber strip through a gas pipe. The inflation mechanism comprises a base, a hanger provided on the base, a telescopic drive mechanism provided on the hanger, an end plate connected to a telescopic end of the telescopic drive mechanism, at least one air duct connected to the end plate, an inflation female connector provided at an upper end of the air duct and matched with an inflation male connector, and an air pipe connected to an air source at a lower end of the air duct.

[0009] Further, the battery shell hole sealing mechanism is further provided, which is used for sealing the holes on the battery shell, and the number and position of the battery shell hole sealing mechanism are determined according to the number and position of the holes on the battery shell. The battery shell hole sealing mechanism comprises a mounting bracket mounted on the framework, guide rails provided on both sides of the mounting bracket, a sliding seat provided at a lower part of the mounting bracket, sliding blocks provided on both sides of the sliding seat and slidably connected with the guide rails, a fixed plate provided at one end of the mounting bracket, a guide shaft provided on the fixed plate and in clearance fit with the fixed plate, a sliding seat provided at one end of the guide shaft, a spring provided outside the guide shaft, one end of the spring connected with the fixed plate and the other end of the spring connected with the sliding seat, a sealing strip mounting plate provided at a lower part of the sliding seat, and a sealing strip provided at a lower part of the sealing strip mounting plate and used for sealing the holes on the battery shell.

[0010] Further, the skid is provided with positioning frames on both sides, the positioning frames are provided with positioning seats used for lifting the edges of the battery shell, the positioning frames are further provided with positioning pins corresponding to the positions of the holes on the battery shell, the upper cover is provided with positioning pin sleeves matched with the positioning pins, the positioning pin sleeves are mounted on the framework through the fixing seats, and the positioning pins are inserted into the positioning pin sleeves after the upper cover is placed on the battery shell.

[0011] Further, the supporting plate is provided with a plurality of positioning shafts, and the lower cover is provided with a plurality of positioning holes used for quickly positioning and mounting the lower cover on the skid.

[0012] Further, the outer ring sealing strip mounting groove and the inner ring sealing strip mounting groove adopt T-shaped grooves or dovetail grooves, and the outer ring inflation sealing strip and the inner ring inflation sealing strip adopt hollow T-shaped structures or dovetail structures.

[0013] Further, at least one groove is provided in the middle of the outer ring inflation sealing strip and the inner ring inflation sealing strip, a plurality of protrusions are formed when the number of the grooves is two or more, and a plurality of levels of sealing are formed.

[0014] Further, one end of the supporting arm is connected with the lower cover through an angle piece, the other end of the supporting arm is connected with the side beam through an angle piece, the angle pieces at both ends of the supporting arm are arranged perpendicularly to each other, and the angle pieces are provided with first adjusting grooves used for adjusting the mounting positions of the outer ring sealing assembly.

[0015] Further, the connecting plate upper portion is provided with a plurality of second adjusting grooves for adjusting the position of the outer ring sealing assembly; the inner ring sealing assembly is spliced by multiple segments, and the inner ring sealing assembly is provided with a plurality of third adjusting grooves for adjusting the position of the inner ring sealing assembly.

[0016] Further, the side beam is provided with a T-shaped groove, and the connecting plate lower portion is provided with a plurality of T-shaped blocks arranged in the T-shaped groove, and the connecting plate is connected with the T-shaped blocks through bolts.

[0017] Further, the telescopic driving mechanism is a gas cylinder, an oil cylinder or an electric cylinder.

[0018] The present application has the following advantages: (1) The inner ring inflatable rubber strip and the outer ring inflatable rubber strip are used to seal and shield the side wall of the battery shell, and after the spraying is completed, the outer ring inflatable rubber strip and the inner ring inflatable rubber strip are deflated, and the deflated outer ring inflatable rubber strip and the inner ring inflatable rubber strip shrink to leave a gap for the disassembly of the battery shell, which ensures the sealing and shielding effect of the battery shell, reduces the disassembly difficulty of the battery shell, and avoids damaging the coating and the battery shell during the disassembly process.

[0019] (2) The battery shell hole sealing mechanism is arranged to seal and shield the holes on the battery shell, which further ensures the sealing and shielding effect of the battery shell.

[0020] (3) The positioning pin on the skid cooperates with the positioning pin sleeve on the upper shielding to realize the quick and accurate positioning of the battery shell and the upper shielding, and the positioning shaft on the supporting plate cooperates with the positioning hole on the lower shielding to realize the quick positioning and installation of the lower shielding and the skid.

[0021] (4) The outer ring rubber strip mounting groove and the inner ring rubber strip mounting groove adopt a T-shaped groove or a dovetail groove, and the outer ring inflatable rubber strip and the inner ring inflatable rubber strip adopt a hollow T-shaped structure or a dovetail structure, which ensures the stability of the installation of the outer ring inflatable rubber strip and the inner ring inflatable rubber strip.

[0022] (5) The recess is arranged in the middle of the outer ring inflatable rubber strip and the inner ring inflatable rubber strip, and after the outer ring inflatable rubber strip and the inner ring inflatable rubber strip are inflated, the recess is extruded outward to form a larger convex, which ensures the sealing effect of the outer ring inflatable rubber strip and the inner ring inflatable rubber strip; when the recess is provided with two or more, multiple recesses form multiple convexes, forming multi-stage sealing, which further ensures the sealing effect of the outer ring inflatable rubber strip and the inner ring inflatable rubber strip.

[0023] (6) The first adjusting groove is arranged on the corner piece at both ends of the supporting arm, which facilitates the adjustment of the installation position of the outer ring sealing assembly to ensure the sealing effect of the outer ring inflatable rubber strip.

[0024] (7) The second adjusting groove is arranged on the upper part of the connecting plate, which is convenient for adjusting the position of the outer ring sealing assembly; the third adjusting groove is arranged on the inner ring sealing assembly, which is convenient for adjusting the position of the inner ring sealing assembly, and the third adjusting groove and the second adjusting groove jointly adapt to the battery shell of different thicknesses.

[0025] (8) The T-shaped groove is arranged on the side beam, and the T-shaped block which is in sliding cooperation with the T-shaped groove is arranged on the lower part of the connecting plate, so as to conveniently adjust the position of the mounting seat and the sealing position of the battery shell, and the sealing and shielding effect of the battery shell is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a use state diagram of the battery shell sealing and shielding structure of the application which adapts to the spraying profile on the vertical plane.

[0027] Figure 2 is a battery shell and lower shielding assembly bottom view.

[0028] Figure 3 is an upper shielding internal schematic diagram.

[0029] Figure 4 is a positioning pin sleeve structure schematic diagram.

[0030] Figure 5 is a battery shell hole sealing mechanism schematic diagram.

[0031] Figure 6 is an upper buckle plate partial schematic diagram.

[0032] Figure 7 is a lower shielding structure schematic diagram.

[0033] Figure 8 is an outer ring sealing assembly partial exploded view.

[0034] Figure 9 is an inner ring sealing assembly schematic diagram.

[0035] Figure 10 is an outer ring inflatable rubber strip sectional view.

[0036] Figure 11 is a skid structure schematic diagram.

[0037] Figure 12 is an inflation connector assembly schematic diagram.

[0038] Figure 13 is an inflation mechanism schematic diagram.

[0039] IN THE DRAWINGS: 1, upper shielding; 11, skeleton; 12, positioning pin sleeve; 13, fixing seat; 14, battery shell hole sealing mechanism; 141, mounting bracket; 142, guide rail; 143, sliding block; 144, sliding seat; 145, fixed plate; 146, guide shaft; 147, spring; 148, sealing strip mounting plate; 15, upper buckle plate; 151, upper sealing groove; 2, lower shielding; 21, lower buckle plate; 211, lower sealing groove; 22, outer ring sealing assembly; 221, support arm; 222, side beam; 223, corner piece; 224, first adjusting groove; 225, connecting plate; 226, T-shaped block; 227, second adjusting groove; 228, mounting seat; 229, outer ring rubber strip mounting groove; 23, inner ring sealing assembly; 231, inner ring rubber strip mounting groove; 232, third adjusting groove; 24, outer ring inflatable rubber strip; 241, groove; 25, positioning hole; 3, skid; 31, positioning frame; 32, positioning pin; 33, bracket; 34, supporting plate; 35, positioning shaft; 36, inflatable joint assembly; 361, mounting bracket; 362, male inflatable joint; 37, positioning seat; 4, inflation mechanism; 41, base; 42, hanger; 43, telescopic drive mechanism; 44, end plate; 45, air guide pipe; 46, female inflatable joint; 5, battery shell; 51, spraying area. DETAILED DESCRIPTION

[0040] The accompanying drawings are incorporated into the present application to provide further understanding of the present application, which serve as a part of the present application and explain the principles of the present application. Figures 1-13 The technical solutions in the embodiments of the present application are described clearly and completely, obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0041] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0042] As shown in Figure 1 , Figure 2 , a battery shell sealing shielding structure suitable for spraying profile in the vertical plane, comprising upper shielding 1, lower shielding 2, skid 3 and inflation mechanism 4, as Figure 3As shown, the upper shield 1 is a cover structure with an opening at the bottom, used to accommodate and shield the receiving cavity of the battery case 5. The upper shield 1 has several longitudinally and transversely arranged frames 11 inside, and upper buckles 15 are provided on both sides of the upper shield 1, as shown... Figure 6 As shown, the upper buckle plate 15 is provided with an upper sealing groove 151.

[0043] like Figure 2 As shown, the lower shield 2 is located at the opening of the battery casing 5, as... Figure 7 As shown, one end of the lower shield 2 is provided with a lower buckle plate 21, and the lower buckle plate 21 is provided with a lower sealing groove 211 corresponding to the position of the upper sealing groove 151. Both the upper sealing groove 151 and the lower sealing groove 211 are provided with sealing strips. The sealing strip in the upper sealing groove 151 is tightly attached to the upper surface of the sprayed area to shield the upper surface of the battery casing 5 sprayed area, and the sealing strip in the lower sealing groove 211 is tightly attached to the lower surface of the sprayed area to shield the lower surface of the battery casing 5 sprayed area. An inner ring sealing assembly 23 is installed on the outer edge of the lower shield 2, such as... Figure 9 As shown, the inner ring sealing assembly 23 has a U-shaped structure and conforms to the outline of the inner ring of the area to be sprayed in the battery case 5. The outer side of the inner ring sealing assembly 23 is provided with an inner ring rubber strip mounting groove 231. An inner ring inflatable rubber strip is provided in the inner ring rubber strip mounting groove 231. Before inflation, there is a gap between the inner ring inflatable rubber strip and the inner cavity of the battery case 5. After inflation, the inner ring inflatable rubber strip abuts against the side wall of the inner cavity of the battery case 5. The sealing strip in the lower sealing groove 211 and the inner ring inflatable rubber strip jointly seal the outer edge of the inner cavity of the battery case 5.

[0044] like Figure 7 , Figure 8 As shown, the lower shield 2 is also provided with outer ring sealing components 22 on both sides. The outer ring sealing components 22 include at least two support arms 221. One end of the support arm 221 is connected to the lower shield 2, and the other end of the support arm 221 is connected to a side beam 222. The side beam 222 is provided with a connecting plate 225. The side of the connecting plate 225 near the battery shell is provided with a mounting seat 228. The side of the mounting seat 228 is provided with an outer ring rubber strip mounting groove 229. An outer ring inflatable rubber strip 24 is provided in the outer ring rubber strip mounting groove 229. Before inflation, there is a gap between the outer ring inflatable rubber strip 24 and the outer wall of the battery shell. After inflation, the outer ring inflatable rubber strip 24 abuts against the outer wall of the battery shell. The sealing strip in the upper sealing groove 151 and the outer ring inflatable rubber strip 24 jointly seal the outer edge of the sprayed area 51 of the battery shell 5.

[0045] Skid 3 is used to transport battery casings and shielding structures, such as Figure 11 As shown, the skid 3 is equipped with a bracket 33, and the bracket 33 is equipped with a support plate 34 for supporting the lower shield 2 and the battery casing; the skid 3 is equipped with an inflation connector assembly 36, such as... Figure 12As shown, the inflation joint assembly 36 includes a mounting frame 361 fixedly mounted on the skid 3, and at least one male inflation joint 362 is arranged on the mounting frame 361, and the male inflation joint 362 is communicated with the outer ring inflation rubber strip 24 and the inner ring inflation rubber strip through an air pipe (not shown in the figure).

[0046] The inflation mechanism 4 is used for inflating and deflating the outer ring inflation rubber strip 24 and the inner ring inflation rubber strip, such as Figure 13 As shown, it includes a base 41, and a hanger 42 is arranged on the base 41, and a telescopic drive mechanism 43 is arranged on the hanger 42, and an end plate 44 is connected to the telescopic end of the telescopic drive mechanism 43, and at least one air guide pipe 45 is connected to the end plate 44, and a female inflation joint 46 matched with the male inflation joint 362 is arranged at the upper end of the air guide pipe 45, and the lower end of the air guide pipe 45 is connected with an air source through an air pipe (not shown in the figure).

[0047] In use, first, the lower shielding 2 is placed on the skid 3 by using hoisting equipment, and then the battery shell is invertedly buckled on the lower shielding 2 with the opening downward, and the sealing profile is formed by extruding the sealing strip in the lower sealing groove 211 by using the gravity of the battery shell itself; then, the hoisting equipment hoists the upper shielding 1 to the upper part of the battery shell and slowly lowers it to the surface of the battery shell, and the gravity of the upper shielding 1 itself makes the upper sealing ring press the sealing area of the battery shell.

[0048] Then, the skid 3 carrying the lower shielding 2, the battery shell and the upper shielding 1 moves to the working position of the inflation mechanism 4, after positioning, the telescopic drive mechanism 43 drives the air guide rod to rise, so that the male inflation joint 362 is butt-jointed with the female inflation joint 46, the air source sends air, and the outer ring inflation rubber strip 24 and the inner ring inflation rubber strip are inflated through the air pipe, so that the outer ring inflation rubber strip 24 and the inner ring inflation rubber strip tightly adhere to the side wall of the battery shell, cooperate with the sealing strip in the lower sealing groove 211 and the sealing strip in the upper sealing groove 151, and complete the sealing shielding of the non-powder spraying area on the vertical surface.

[0049] After the shielding is completed, the skid 3 carrying the shielded battery shell moves to the spraying station to vertically spray the spraying area 51 of the battery shell 5. After spraying is completed, the skid 3 carrying the workpiece moves to the working position of the inflation mechanism 4 again, the male inflation joint 362 is butt-jointed with the female inflation joint 46, and the outer ring inflation rubber strip 24 and the inner ring inflation rubber strip are deflated, and the deflated outer ring inflation rubber strip 24 and the inner ring inflation rubber strip are retracted into the outer ring rubber strip mounting groove 229 and the inner ring rubber strip mounting groove 231, leaving a gap for disassembly of the battery shell, not only reducing the difficulty of disassembly of the battery shell, but also avoiding damage to the coating and the battery shell during disassembly of the battery shell.

[0050] As shown in the figure, Figure 3 , Figure 5As shown, it also includes a battery casing hole sealing mechanism 14 for sealing holes in the battery casing. The number and position of the battery casing hole sealing mechanisms 14 are determined according to the number and position of holes in the battery casing. The battery casing hole sealing mechanism 14 includes a mounting bracket 141, which is mounted on the frame 11. The mounting bracket 141 has guide rails 142 on both sides and a slide block 144 at the bottom. The slide block 144 has sliders 143 on both sides that are slidably connected to the guide rails 142. A fixing plate 145 is provided at one end of the frame 141. A guide shaft 146 is provided on the fixing plate 145, and the guide shaft 146 is clearance-fitted with the fixing plate 145. A slide 144 is provided at one end of the guide shaft 146. A spring 147 is sleeved on the outside of the guide shaft 146. One end of the spring 147 is connected to the fixing plate 145, and the other end of the spring 147 is connected to the slide 144. A sealing strip mounting plate 148 is provided at the lower part of the slide 144, and a sealing strip for sealing the holes in the battery case is provided at the lower part of the sealing strip mounting plate 148.

[0051] When there are holes in the battery case 5, the battery case hole sealing mechanism 14 is installed at the corresponding position of the battery case hole. When the upper shield 1 is placed on the battery case, the sealing strip on the sealing strip mounting plate 148 contacts the battery case. As the upper shield 1 descends further, the guide shaft 146 extends and retracts on the fixed plate 145. Guided by the slider 143, the spring 147 is compressed. The elastic force of the spring 147 makes the sealing strip mounting plate 148 fit tightly against the periphery of the battery case hole, thereby achieving the sealing and shielding of the battery case hole and further ensuring the sealing and shielding effect of the battery case.

[0052] like Figure 11 As shown, the skid 3 is provided with positioning frames 31 on both sides, and positioning seats 37 are provided on the positioning frames 31 for supporting the edge of the battery case. The positioning frames 31 are also provided with positioning pins 32, which correspond to the positions of the holes on the battery case. The lower part of the upper shield 1 is provided with a positioning pin sleeve 12 that cooperates with the positioning pin 32. The positioning pin sleeve 12 is installed on the frame 11 through a fixing seat 13. After the upper shield 1 is placed on the battery case, the positioning pin 32 is inserted into the positioning pin sleeve 12, which facilitates the quick alignment of the battery case and the upper shield 1.

[0053] like Figure 11 As shown, the pallet 34 is provided with a plurality of positioning shafts 35, such as Figure 2 As shown, the lower shield 2 is provided with several positioning holes 25 at its lower part, which are used for quick positioning and installation of the lower shield 2 on the skid 3, and to avoid the lower shield 2 shifting on the skid 3 due to vibration generated during the transportation of the skid 3.

[0054] The outer ring rubber strip mounting groove 229 and the inner ring rubber strip mounting groove 231 adopt T-slots or dovetail grooves, such as Figure 8As shown in the drawings, in the present embodiment, the outer ring rubber strip mounting groove 229 and the inner ring rubber strip mounting groove 231 are both T-shaped grooves, as shown in the drawings Figure 10 As shown in the drawings, the outer ring inflatable rubber strip 24 and the inner ring inflatable rubber strip are hollow T-shaped structures or dovetail-shaped structures, which avoid the outer ring inflatable rubber strip 24 and the inner ring inflatable rubber strip from falling out of the outer ring rubber strip mounting groove 229 and the inner ring rubber strip mounting groove 231.

[0055] As shown in the drawings Figure 10 As shown in the drawings, at least one groove 241 is arranged in the middle of the outer ring inflatable rubber strip 24 and the inner ring inflatable rubber strip. After the outer ring inflatable rubber strip 24 and the inner ring inflatable rubber strip are inflated, the groove 241 is extruded outward to form a larger range of protrusions, which ensures the sealing effect of the outer ring inflatable rubber strip 24 and the inner ring inflatable rubber strip. When two or more grooves 241 are arranged, multiple grooves 241 form multiple protrusions, forming a multi-stage seal, which further ensures the sealing effect of the outer ring inflatable rubber strip 24 and the inner ring inflatable rubber strip.

[0056] As shown in the drawings Figure 8 As shown in the drawings, one end of the support arm 221 is connected to the lower shielding 2 through an angle piece 223, and the other end of the support arm 221 is connected to the side beam 222 through an angle piece 223. The angle pieces 223 at both ends of the support arm 221 are arranged perpendicular to each other, and the angle piece 223 is provided with a first adjusting groove 224 for adjusting the installation position of the outer ring sealing assembly 22 to ensure the sealing effect of the outer ring inflatable rubber strip 24.

[0057] As shown in the drawings Figure 8 As shown in the drawings, the upper part of the connecting plate 225 is provided with a plurality of second adjusting grooves 227 for adjusting the position of the outer ring sealing assembly 22. The inner ring sealing assembly 23 is spliced by multiple segments, and the inner ring sealing assembly 23 is provided with a plurality of third adjusting grooves 232. The third adjusting grooves 232 are used to adjust the position of the inner ring sealing assembly 23, and work together with the second adjusting grooves 227 to adapt to the use of battery shell shielding of different thicknesses.

[0058] As shown in the drawings Figure 8 As shown in the drawings, the side beam 222 is provided with a T-shaped groove, and the lower part of the connecting plate 225 is provided with a plurality of T-shaped blocks 226. The T-shaped blocks 226 are arranged in the T-shaped groove, and the connecting plate 225 is connected to the T-shaped blocks 226 through bolts, which facilitates the adjustment of the position of the mounting seat 228 to adjust the sealing position of the battery shell and ensures the sealing shielding effect of the battery shell.

[0059] The telescopic drive mechanism 43 is a gas cylinder, an oil cylinder or an electric cylinder, as shown in the drawings Figure 13 As shown in the drawings, in the present embodiment, the telescopic drive mechanism is a gas cylinder.

[0060] The above merely illustrates and describes the structure of the present application, and those skilled in the art can make various modifications or supplements to the described specific embodiments or adopt similar ways to replace, as long as the modifications or supplements or replacements do not deviate from the scope defined by the structure of the present application, and should belong to the protection scope of the present application.

Claims

1. A battery casing sealing and shielding structure adapted to the sprayed outline on a vertical plane, comprising: The upper shield is a cover structure with an opening at the bottom. The upper shield has several crisscrossed skeletons inside. The upper shield has upper buckle plates on both sides, and upper sealing grooves on the upper buckle plates. A lower shield is provided at the opening of the battery casing. One end of the lower shield is provided with a lower buckle plate, and the lower buckle plate is provided with a lower sealing groove corresponding to the position of the upper sealing groove. Both the upper sealing groove and the lower sealing groove are provided with sealing strips. The lower shield is characterized by having an inner ring sealing assembly installed on its outer edge. The inner ring sealing assembly has a U-shaped structure and conforms to the outline of the inner ring of the area to be sprayed on the battery casing. The outer side of the inner ring sealing assembly is provided with an inner ring rubber strip mounting groove. An inner ring inflatable rubber strip is provided in the inner ring rubber strip mounting groove. Before inflation, there is a gap between the inner ring inflatable rubber strip and the inner cavity of the battery casing. After inflation, the inner ring inflatable rubber strip abuts against the side wall of the inner cavity of the battery casing. The lower shield is also provided with an outer ring sealing assembly on both sides. The outer ring sealing assembly includes at least two support arms. One end of the support arm is connected to the lower shield, and the other end of the support arm is connected to a side beam. A connecting plate is provided on the side beam. A mounting seat is provided on the side of the connecting plate near the battery shell. An outer ring rubber strip mounting groove is provided on the side of the mounting seat. An outer ring inflatable rubber strip is provided in the outer ring rubber strip mounting groove. Before inflation, there is a gap between the outer ring inflatable rubber strip and the outer wall of the battery shell. After inflation, the outer ring inflatable rubber strip abuts against the outer wall of the battery shell. A sled, the sled being provided with a bracket, the bracket being provided with a support plate; the sled being provided with an inflation connector assembly, the inflation connector assembly including a mounting bracket fixedly installed on the sled, the mounting bracket having at least one inflation male head, the inflation male head being connected to an outer ring inflation rubber strip and an inner ring inflation rubber strip via an air tube; An inflation mechanism includes a base, a hanger on the base, a telescopic drive mechanism on the hanger, an end plate connected to the telescopic end of the telescopic drive mechanism, at least one air duct connected to the end plate, an air duct with an air female head adapted to the male inflation head at the upper end, and an air duct connected to an air source via an air pipe at the lower end.

2. The battery casing sealing and shielding structure according to claim 1, characterized in that, It also includes a battery casing hole sealing mechanism for sealing holes in the battery casing. The number and position of the battery casing hole sealing mechanism are determined according to the number and position of holes in the battery casing. The battery casing hole sealing mechanism includes a mounting bracket, which is mounted on a frame. The mounting bracket has guide rails on both sides and a slide block at the bottom. The slide block has sliders on both sides that are slidably connected to the guide rails. One end of the mounting bracket has a fixing plate, and the fixing plate has a guide shaft with a clearance fit. One end of the guide shaft has a slide block, and a spring is sleeved on the outside of the guide shaft. One end of the spring is connected to the fixing plate, and the other end of the spring is connected to the slide block. The lower part of the slide block has a sealing strip mounting plate, and the lower part of the sealing strip mounting plate has a sealing strip for sealing the holes in the battery casing.

3. The battery casing sealing and shielding structure according to claim 1, characterized in that, The skid is provided with positioning frames on both sides, and positioning seats are provided on the positioning frames to support the edge of the battery case. The positioning frames are also provided with positioning pins, which correspond to the positions of the holes on the battery case. The lower part of the upper shield is provided with a positioning pin sleeve that cooperates with the positioning pin. The positioning pin sleeve is installed on the frame through a fixing seat. After the upper shield is placed on the battery case, the positioning pin is inserted into the positioning pin sleeve.

4. A battery casing sealing and shielding structure adapted to the spraying contour on a vertical plane according to claim 1, characterized in that, The pallet is provided with several positioning shafts, and the lower shield is provided with several positioning holes for quick positioning and installation of the lower shield on the skid.

5. A battery casing sealing and shielding structure adapted to the spraying contour on a vertical plane according to claim 1, characterized in that, The outer ring rubber strip mounting groove and the inner ring rubber strip mounting groove adopt T-shaped grooves or dovetail grooves, and the outer ring inflatable rubber strip and the inner ring inflatable rubber strip are hollow T-shaped structures or dovetail structures.

6. A battery casing sealing and shielding structure adapted to the spraying contour on a vertical plane according to claim 5, characterized in that, The outer and inner inflatable rubber strips are provided with at least one groove in the middle. When there are two or more grooves, multiple grooves form multiple protrusions, forming a multi-level seal.

7. A battery casing sealing and shielding structure adapted to the spraying contour on a vertical plane according to claim 1, characterized in that, One end of the support arm is connected to the lower shield via a corner piece, and the other end of the support arm is connected to the side beam via a corner piece. The corner pieces at both ends of the support arm are arranged perpendicularly to each other. The corner piece is provided with a first adjustment groove for adjusting the installation position of the outer ring sealing assembly.

8. A battery casing sealing and shielding structure adapted to the spraying contour on a vertical plane according to any one of claims 1-7, characterized in that, The upper part of the connecting plate is provided with several second adjustment grooves for adjusting the position of the outer ring sealing assembly; the inner ring sealing assembly is composed of multiple segments spliced ​​together, and the inner ring sealing assembly is provided with several third adjustment grooves for adjusting the position of the inner ring sealing assembly.

9. A battery casing sealing and shielding structure adapted to the spraying contour on a vertical plane according to claim 8, characterized in that, The side beam is provided with a T-shaped groove, and the lower part of the connecting plate is provided with several T-shaped blocks. The T-shaped blocks are set in the T-shaped groove, and the connecting plate is connected to the T-shaped blocks by bolts.

10. A battery casing sealing and shielding structure adapted to the spraying contour on a vertical plane according to claim 1, characterized in that, The telescopic drive mechanism is a pneumatic cylinder, hydraulic cylinder, or electric cylinder.

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