Packaging structure

Abstract

The utility model relates to a packaging structure, which comprises a packaging assembly, a welding bridge and a mounting bracket, the packaging assembly comprises a shell, an inner cylinder and a partition plate, the inner cylinder is fixedly arranged in the shell, the inner ring of the partition plate is connected with the outer wall of the inner cylinder, the outer ring of the partition plate is connected with the inner wall of the shell, and the welding bridge is connected with the mounting bracket. A packaging strip-shaped groove right opposite to the partition plate is formed in the shell, the welding bridge frame is installed at the packaging strip-shaped groove of the shell and welded to the partition plate and the shell, and the installation support is configured to be connected with the welding bridge frame and the whole vehicle. The installation support can be directly welded to the shell through the welding bridge and connected with a whole vehicle, parts such as postprocessor bridges and straps are reduced, and the installation support has the advantages of reducing weight and cost, being easy to assemble and high in reliability, meanwhile, at the welding position, the welding bridge is welded to the shell and can also be welded to the partition plate through the packaging strip-shaped groove, and the installation support is convenient to install. And the local strength of the joint of the shell and the mounting bracket is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engine post-processors, in particular to a packaging structure. Background Art

[0002] An engine after-treatment device is a device used to treat and purify engine exhaust emissions. It is located between the engine and the exhaust pipe. Its primary purpose is to convert harmful emissions into substances that are more environmentally and health-friendly through a series of chemical reactions.

[0003] For example, the utility model patent with application number CN201921715904.7 proposes a natural gas engine after-processor, a natural gas engine after-processor, wherein a silencer chamber, a first mixing chamber and a second mixing chamber are provided inside the shell along the length direction, a sound-absorbing plate is provided in the silencer chamber, a first air inlet (A) is provided in the shell corresponding to the first mixing chamber, and a second air inlet is provided between the first mixing chamber and the second mixing chamber; the carrier package is configured to allow the exhaust gas and ammonia to react respectively in the carrier package, the carrier package is arranged in the first mixing chamber, and the two ends of the carrier package () are connected to the silencer chamber and the second mixing chamber; one end of the tail pipe is connected to the silencer chamber, and the other end passes through the first mixing chamber and extends from the second mixing chamber; wherein: the exhaust gas passes through the first mixing chamber, the second air inlet, the second mixing chamber, the carrier package, the silencer chamber and the tail pipe in sequence from the first air inlet to form an exhaust gas flow route.

[0004] However, most of the current post-processors are designed and manufactured separately from the vehicle installation structure, that is, the packaging cylinder is completed first, and then the installation bracket and hoop and other structures are assembled. There are defects such as a large number of parts, heavy weight, increased cost, complex assembly, high assembly difficulty and difficulty in ensuring reliability. Utility Model Content

[0005] In view of this, it is necessary to provide a packaging structure to solve the problems that most post-processors are designed and manufactured separately from the vehicle installation structure, resulting in a large number of parts, heavy weight, increased cost, complex assembly, high assembly difficulty and difficulty in ensuring reliability.

[0006] The utility model provides a packaging structure, including a packaging component, a welding bridge and a mounting bracket, the packaging component includes an outer shell, an inner cylinder and a partition, the inner cylinder is fixedly arranged in the outer shell, the inner ring of the partition is connected to the outer wall of the inner cylinder, the outer ring of the partition is connected to the inner wall of the outer shell, a packaging strip groove facing the partition is formed on the outer shell, the welding bridge is installed at the packaging strip groove of the outer shell, and is welded to the partition and the outer shell, and the mounting bracket is configured to connect the welding bridge and the entire vehicle.

[0007] Furthermore, the welding bridge includes a connecting piece and a connecting block, the connecting piece is attached to the outer wall of the shell and covers the packaging strip groove, the outer circle of the connecting piece and the shell are filled with welding material, the part of the connecting piece facing the packaging strip groove is filled with welding material, the connecting piece is connected to the connecting block, and the connecting block is connected to the mounting bracket.

[0008] Furthermore, a connecting strip groove is provided on the connecting piece and is arranged opposite to the packaging strip groove. The welding material is filled in the packaging strip groove and the connecting strip groove to connect the connecting piece and the partition.

[0009] Furthermore, the connecting piece is an arc-shaped piece, and the connecting piece fits with the arc-shaped surface of the side wall of the shell.

[0010] Furthermore, the number of the welding bridges, the partitions, and the packaging strip grooves are multiple and correspond one to one, and the mounting bracket is connected to the housing via the multiple welding bridges.

[0011] Furthermore, there are two mounting brackets, which are respectively arranged on both sides of the shell; there are two partitions, and each mounting bracket is connected to two partitions via two welding bridges.

[0012] Furthermore, the mounting bracket has a first connecting portion and a second connecting portion, the first connecting portion is configured to be connected to the welding bridge, and the second connecting portion is configured to be connected to the entire vehicle.

[0013] Furthermore, the packaging assembly also includes two sealing plates, and the two ends of the inner cylinder are fixedly connected to the two sealing plates respectively. The outer shell is cylindrical, and the inner edges of the two ends of the outer shell are respectively connected to the two sealing plates.

[0014] Furthermore, there are two partitions, and a first mixing chamber, a second mixing chamber and a silencer chamber are formed in sequence between one of the sealing plates, one of the partitions, another partition and another sealing plate. An air inlet hole connected to the first mixing chamber is provided on the outer wall of the outer shell, and air holes are provided on both of the partitions. A guide hole is provided on the side wall of the inner tube facing the silencer chamber, and an exhaust hole connected to the inner tube is provided on the sealing plate close to the first mixing chamber, so that the exhaust gas can flow through the first mixing chamber, the second mixing chamber, the silencer chamber and the inner tube in sequence through the air inlet hole and be discharged from the exhaust hole.

[0015] Furthermore, it also includes an air intake pipe, which is built into the first mixing chamber and fixedly connected to the inner cylinder. One end of the air intake pipe extends to the outside of the outer shell to form the air intake hole, and a plurality of air distribution holes are opened on the outer wall of the air intake pipe.

[0016] Compared with the existing technology, the mounting bracket can be directly welded to the outer shell and connected to the entire vehicle through the welding bridge, reducing parts such as the post-processor bridge and hoop, and has the advantages of weight reduction and cost reduction, easy assembly and high reliability. At the same time, in the welding part, the welding bridge is not only welded to the outer shell, but also can be welded to the partition through the encapsulation strip groove, effectively ensuring the local strength of the connection between the outer shell and the mounting bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of the packaging structure provided by an embodiment of the present utility model;

[0018] Figure 2 A schematic structural diagram of a housing in a packaging structure provided by an embodiment of the present utility model;

[0019] Figure 3 An exploded schematic diagram of the entire packaging structure provided by an embodiment of the present utility model;

[0020] Figure 4 A schematic structural diagram of a welding bridge in a packaging structure provided by an embodiment of the present utility model;

[0021] Figure 5 This is a structural schematic diagram of the mounting bracket in the packaging structure provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0023] The packaging structure is applied to the after-processor of an automobile engine, and is mainly used to guide and treat exhaust gas, so as to convert it into a substance that is more friendly to the environment and human health. At present, the packaging structure mainly encapsulates the after-processor and guides the exhaust gas to flow through the after-processor. The packaging structure is installed on the whole vehicle through parts such as a bridge and a hoop. In actual operation, the packaging structure encapsulates the after-processor, and then connects the packaging structure to the automobile through a connector. During operation, the above-mentioned connector not only needs to be connected to the packaging structure, but also needs to be connected to the automobile. However, this application directly uses the connector as part of the packaging structure, that is, after the packaging structure is installed, it can be directly connected to the automobile to optimize the assembly process. A detailed explanation and description is given below.

[0024] like Figure 1-3As shown, the utility model provides a packaging structure, including a packaging component 100, a welding bridge 200 and a mounting bracket 300. The packaging component 100 includes an outer shell 110, an inner cylinder 120 and a partition 130. The inner cylinder 120 is fixedly arranged in the outer shell 110, the inner circle of the partition 130 is connected to the outer wall of the inner cylinder 120, and the outer circle of the partition 130 is connected to the inner wall of the outer shell 110. A packaging strip groove 111 facing the partition 130 is formed on the outer shell 110. The welding bridge 200 is installed at the packaging strip groove 111 of the outer shell 110 and is welded to the partition 130 and the outer shell 110. The mounting bracket 300 is configured to connect the welding bridge 200 and the entire vehicle.

[0025] During implementation, the mounting bracket 300 can be directly welded to the outer shell 110 through the welding bridge 200 and connected to the entire vehicle, reducing parts such as the post-processor bridge and hoop, and has the advantages of weight reduction and cost reduction, easy assembly and high reliability. At the same time, at the welding position, the welding bridge 200 is not only welded to the outer shell 110, but can also be welded to the partition 130 through the encapsulation strip groove 111, effectively ensuring the local strength of the connection between the outer shell 110 and the mounting bracket 300.

[0026] The packaging assembly 100 in this embodiment includes an outer shell 110, an inner cylinder 120 and a partition 130. The inner cylinder 120 is fixedly arranged in the outer shell 110, the inner circle of the partition 130 is connected to the outer wall of the inner cylinder 120, and the outer circle of the partition 130 is connected to the inner wall of the outer shell 110. A packaging strip groove 111 is formed on the outer shell 110, facing the partition 130.

[0027] The housing 110 serves as an external protective structure of the packaging component 100 , and its shape may be box-shaped or cylindrical, which is not limited in the embodiment of the present invention.

[0028] The inner cylinder 120 is mounted within the outer shell 110 and contains an aftertreatment system for treating the vehicle's engine exhaust. It is understood that the aftertreatment system may include an SCR (Selective Catalytic Reduction) system, a DOC (Redox Catalyst) system, or a DPF (Particulate Filter) system.

[0029] Partition 130 is positioned between outer shell 110 and inner barrel 120 to separate the cavity between them, thereby creating a channel for guiding exhaust gas flowing into the post-processor in inner barrel 120. It should be noted that the thickness of partition 130 should be greater than the width of the strip sealing groove to avoid a gap between partition 130 and the strip sealing groove that could affect the sealing of the packaging structure.

[0030] In one embodiment, the partition 130 is a square plate structure, and the four corners of the partition 130 are rounded to adapt to the curved surface of the shell 110, that is, corresponding to the strip sealing groove, a circular hole is opened inside the partition 130 for the inner tube 120 to pass through.

[0031] In one embodiment, the packaging assembly 100 further includes two sealing plates 140 , and both ends of the inner cylinder 120 are fixedly connected to the two sealing plates 140 . The outer shell 110 is cylindrical, and the inner edges of both ends of the outer shell 110 are respectively connected to the two sealing plates 140 .

[0032] It is understandable that the sealing plate 140 is a square plate structure, and the four corners of the sealing plate 140 are rounded to match the curved surface of the housing 110 to ensure good sealing performance of the packaging structure.

[0033] In one embodiment, there are two partitions 130, and a first mixing chamber, a second mixing chamber and a silencer chamber are formed in sequence between one sealing plate 140, one partition 130, another partition 130 and another sealing plate 140. An air inlet 151 connected to the first mixing chamber is provided on the outer wall of the outer shell 110, and air holes 131 are provided on both partitions 130. A guide hole is provided on the side wall of the inner tube 120 facing the silencer chamber, and an exhaust hole 131 connected to the inner tube 120 is provided on the sealing plate 140 close to the first mixing chamber, so that the exhaust gas can flow through the first mixing chamber, the second mixing chamber, the silencer chamber and the inner tube 120 in sequence through the air inlet 151 and be discharged from the exhaust hole 131.

[0034] In this embodiment, the packaging assembly 100 also includes an air intake pipe 150, which is built into the first mixing chamber and fixedly connected to the inner tube 120. One end of the air intake pipe 150 extends to the outside of the outer shell 110 to form an air intake hole 151, and a plurality of air distribution holes 152 are opened on the outer wall of the air intake pipe 150.

[0035] It can be understood that the air distribution holes 152 can be round holes or square holes. Multiple air distribution holes 152 are evenly arranged along the circumference of the intake pipe 150 and arranged in sequence along the length direction of the intake pipe 150 to evenly transport the exhaust gas to the first mixing chamber.

[0036] The exhaust gas entering the first mixing chamber through the intake pipe 150 is evenly diffused into the entire first mixing chamber through the air distribution holes 152, and flows into the post-processing in the inner tube 120 through the second mixing chamber and the silencer chamber. The exhaust gas is processed by the post-processor and then discharged from the exhaust hole 131.

[0037] It is understandable that the flow direction of the exhaust gas in the packaging component 100 can also be achieved in other ways, and the embodiment of the present invention does not limit this.

[0038] It should be noted that, in addition to being used to separate the air inside the outer shell 110, the above-mentioned partition 130 also has the function of connecting to the welding bridge 200. Specifically, a packaging strip groove 111 is formed on the outer shell 110, facing the partition 130. By introducing the molten welding material into the packaging strip groove 111, the partition 130 and the welding bridge 200 can be connected after the molten welding material solidifies, thereby improving the strength at the connection point.

[0039] The welding bridge 200 in this embodiment is installed at the packaging strip groove 111 of the housing 110 and is welded to the partition 130 and the housing 110 .

[0040] It should be noted that the above-mentioned welding bridge 200, as part of the packaging structure, can be used to connect the entire vehicle. Specifically, the welding bridge 200 is installed at the packaging strip groove 111 of the outer shell 110, and the welding material is filled in the packaging strip groove 111 to achieve sealing of the outer shell 110. At the same time, the welding bridge 200 is not only welded to the outer shell 110, but also connected to the partition 130, thereby improving the connection strength between the packaging component 100 and the entire vehicle.

[0041] like Figure 4 The structural schematic diagram of the welding bridge 200 in the packaging structure shown in FIG. 1 is a block diagram of the welding bridge 200. In one embodiment, the welding bridge 200 includes a connecting piece 210 and a connecting block 220. The connecting piece 210 is attached to the outer wall of the shell 110 and covers the packaging strip groove 111. The outer circle of the connecting piece 210 and the shell 110 are filled with welding material. The part of the connecting piece 210 facing the packaging strip groove 111 is filled with welding material. The connecting piece 210 is connected to the connecting block 220, and the connecting block 220 is connected to the mounting bracket 300.

[0042] The above-mentioned connecting piece 210 serves as the connecting part between the welding bridge 200 and the packaging component 100. It is not only connected to the outer shell 110, but also connected to the partition 130. During the connection process, a connecting strip groove 211 is opened on the connecting piece 210 and is arranged opposite to the packaging strip groove 111. The welding material is filled in the packaging strip groove 111 and the connecting strip groove 211 to connect the connecting piece 210 and the partition 130.

[0043] The connection strip groove 211 is provided to facilitate the operation of the welding gun, and the molten welding material is filled into the packaging strip groove 111 to achieve the connection between the partition 130 and the connection piece 210 .

[0044] In one embodiment, the connecting piece 210 is an arc-shaped piece, and the connecting piece 210 fits in contact with the arc-shaped surface of the side wall of the housing 110 .

[0045] Of course, in other preferred implementations, the connecting piece 210 may also be in the shape of a flat plate, etc., and the embodiment of the present utility model does not limit this.

[0046] In this embodiment, the connecting block 220 is a part connecting the connecting piece 210 and the mounting bracket 300. The connecting block 220 can adopt a triangular structure, an I-shaped structure, etc. The connecting piece 210 and the connecting block 220 can be connected by screws or welding.

[0047] In one embodiment, the connecting piece 210 and the connecting block 220 are hingedly connected, and the connecting block 220 rotates relative to the connecting piece 210. By rotating the connecting block 220 to different angles, the relative position between the packaging assembly 100 and the mounting bracket 300 can be adjusted. It should be noted that a locking structure should also be provided. The locking structure is mounted on the connecting block 220, and the locking end of the locking structure abuts against the connecting piece 210 to lock the connecting block 220 in its current rotation position.

[0048] It is understandable that the locking structure can be implemented by using a locking screw or other structure. Specifically, the locking screw passes through the connecting block 220 and abuts against the connecting piece 210 to lock the connecting block 220. The embodiment of the present utility model does not limit the form of the locking structure.

[0049] In this embodiment, the mounting bracket 300 is configured to connect the welding bridge 200 and the vehicle. There are multiple welding bridges 200, partitions 130, and packaging strip grooves 111, each with a one-to-one correspondence. The mounting bracket 300 is connected to the housing 110 via multiple welding bridges 200. The number of welding bridges 200 should be determined based on the weight, size, and installation location of the packaging assembly 100.

[0050] In one embodiment, there are two mounting brackets 300 , which are respectively arranged on both sides of the housing 110 , and there are two partitions 130 . Each mounting bracket 300 is connected to two partitions 130 via two welding bridges 200 .

[0051] like Figure 5 The structural schematic diagram of the mounting bracket 300 in the packaging structure shown in FIG. 1 is a block diagram of the mounting bracket 300. In one embodiment, the mounting bracket 300 has a first connecting portion 310 and a second connecting portion 320. The first connecting portion 310 is configured to be connected to the welding bridge 200, and the second connecting portion 320 is configured to be connected to the entire vehicle.

[0052] The mounting bracket 300 in this embodiment is in the shape of an elongated strip and is provided with a plurality of first connecting holes (i.e., the first connecting portion 310). The corresponding connecting block 220 is provided with a plurality of second connecting holes. When the connecting block 220 is connected to the mounting bracket 300, the plurality of first connecting holes correspond to the plurality of second connecting holes. The connection between the connecting block 220 and the mounting bracket 300 can be achieved by passing connecting screws through the first connecting holes and the second connecting holes.

[0053] Positioning pins and other structures may be provided on the first connecting portion 310 and the second connecting portion 320 to facilitate fixed installation during the assembly process.

[0054] Of course, in other preferred embodiments, the mounting bracket 300 may also be connected to the welding bridge 200 by welding or other methods, which is not limited thereto.

[0055] It is understandable that the second connecting portion 320 and the entire vehicle can be connected in the same manner as the first connecting portion 310 and the connecting block 220 , with a method that is stable and easy to assemble and disassemble being preferred.

[0056] The welding bridge 200 and mounting bracket 300 can be used as standard parts and can be reused multiple times, reducing the cost of molds for parts manufacturing and improving part utilization. According to different usage scenarios, the mounting bracket 300 of different sizes and shapes can be used to modularize the entire packaging structure and make it more convenient to use.

[0057] Workflow:

[0058] The post-processor is installed in the inner cylinder 120, and two partitions 130 are sleeved on the inner cylinder 120. The partition 130 is an annular plate, and its inner ring is welded to the outer wall of the inner cylinder 120. The outer shell 110 is sleeved to the outside of the inner cylinder 120, and the outer ring of the partition 130 is welded to the inner wall of the outer shell 110, and the partition 130 is arranged opposite to the packaging strip groove 111. The outer edges of the two ends of the inner cylinder 120 are respectively welded to the two sealing plates 140. At the same time, the outer edge of the sealing plate 140 is welded to the inner edge of the outer shell 110, thereby completing the installation process of the entire packaging assembly 100. Attach the connecting piece 210 to the outer shell 110 so that the connecting strip groove 211 is opposite to the packaging strip groove 111. Use a welding gun to guide the molten welding material to the four sides of the connecting piece 210 to connect the connecting piece 210 to the outer shell 110. At the same time, guide the molten welding material into the connecting strip groove 211 and the packaging strip groove 111 to connect the connecting piece 210 to the partition 130. Then connect the connecting piece 210 and the mounting bracket 300 through the connecting block 220. Finally, install the entire packaging structure on the vehicle through the mounting bracket 300, and the entire installation process is completed.

[0059] Compared with the existing technology: the mounting bracket 300 can be directly welded to the outer shell 110 through the welding bridge 200 and connected to the entire vehicle, reducing parts such as the post-processor bridge and hoop, and has the advantages of weight reduction and cost reduction, easy assembly and high reliability. At the same time, in the welding position, the welding bridge 200 is not only welded to the outer shell 110, but also can be welded to the partition 130 through the encapsulation strip groove 111, effectively ensuring the local strength of the connection between the outer shell 110 and the mounting bracket 300.

[0060] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A packaging structure, characterized in that: include: A packaging assembly comprising an outer shell, an inner cylinder, and a partition, wherein the inner cylinder is fixedly disposed in the outer shell, an inner ring of the partition is connected to an outer wall of the inner cylinder, and an outer ring of the partition is connected to an inner wall of the outer shell, and a packaging strip groove is formed on the outer shell facing the partition; a welding bridge, which is installed at the packaging strip groove of the shell and welded to the partition and the shell; A mounting bracket is configured to connect the welding bridge and the entire vehicle.

2. The packaging structure according to claim 1, wherein: The welding bridge includes a connecting piece and a connecting block. The connecting piece is attached to the outer wall of the shell and covers the packaging strip groove. The outer circle of the connecting piece and the shell are filled with welding material. The part of the connecting piece facing the packaging strip groove is filled with welding material. The connecting piece is connected to the connecting block, and the connecting block is connected to the mounting bracket.

3. The packaging structure according to claim 2, wherein: The connecting piece is provided with a connecting strip groove which is arranged opposite to the packaging strip groove. The welding material is filled in the packaging strip groove and the connecting strip groove to connect the connecting piece and the partition.

4. The packaging structure according to claim 2, wherein: The connecting piece is an arc-shaped piece, and the connecting piece fits with the arc-shaped surface of the side wall of the shell.

5. The packaging structure according to claim 1, wherein: The welding bridges, the partitions, and the packaging strip grooves are all multiple in number and correspond one to one, and the mounting bracket is connected to the housing via the multiple welding bridges.

6. The packaging structure according to claim 1, wherein: There are two mounting brackets, which are respectively arranged on both sides of the shell. There are two partitions, and each mounting bracket is connected to two partitions via two welding bridges.

7. The packaging structure according to claim 1, wherein: The mounting bracket has a first connecting portion and a second connecting portion. The first connecting portion is configured to be connected to the welding bridge, and the second connecting portion is configured to be connected to the entire vehicle.

8. The packaging structure according to claim 1, wherein: The packaging assembly further includes two sealing plates, and both ends of the inner cylinder are fixedly connected to the two sealing plates respectively. The outer shell is cylindrical, and the inner edges of both ends of the outer shell are respectively connected to the two sealing plates.

9. The packaging structure according to claim 8, wherein: There are two partitions, and a first mixing chamber, a second mixing chamber and a silencer chamber are formed in sequence between one of the sealing plates, one of the partitions, the other partition and the other sealing plate. An air inlet connected to the first mixing chamber is provided on the outer wall of the outer shell, and air holes are provided on both of the partitions. A guide hole is provided on the side wall of the inner tube facing the silencer chamber, and an exhaust hole connected to the inner tube is provided on the sealing plate close to the first mixing chamber, so that the exhaust gas can flow through the first mixing chamber, the second mixing chamber, the silencer chamber and the inner tube in sequence through the air inlet and be discharged from the exhaust hole.

10. The packaging structure according to claim 9, wherein: It also includes an air intake pipe, which is built into the first mixing chamber and fixedly connected to the inner cylinder. One end of the air intake pipe extends to the outside of the outer shell to form the air intake hole, and a plurality of air distribution holes are opened on the outer wall of the air intake pipe.

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