Integrated guard plate type postprocessor

Abstract

The utility model provides an integrated guard plate type postprocessor which is characterized in that an upper guard plate is fixedly mounted on a postprocessor body, the upper guard plate shields the front surface, the back surface and the upper surface area of the postprocessor body, and a side guard plate is fixedly mounted on the side surface of the postprocessor body and shields the side surface of the postprocessor body; a sensor wire harness, an integrated wire harness connector and a sensor of the postprocessor are fixedly installed on the outer side of the upper protection plate. The utility model solves the problem that the wire harness on the postprocessor is easy to melt.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle engine tail gas emission purification and energy saving and consumption reduction, and particularly relates to an integrated guard plate type post-processor. Background Art

[0002] At present, most diesel vehicles with National VI after-processors are equipped with DPF particulate filters. During driving regeneration or parking regeneration, the exhaust temperature can reach over 600°C, and the temperature of the after-processor body also rises sharply. The risk of melting the sensor wiring harness and connectors on the after-processor is getting higher and higher. Summary of the Invention

[0003] The utility model provides an integrated guard plate type post-processor, which aims to solve the problem that the wiring harness on the post-processor is easily melted.

[0004] The technical solution adopted by this utility model is:

[0005] An integrated guard plate type post-processor, characterized by:

[0006] An upper guard plate is fixedly installed on the post-processor body, and the upper guard plate covers the front, back and upper areas of the post-processor body. Side guard plates are fixedly installed on the sides of the post-processor body, and the side guard plates cover the sides of the post-processor body. The sensor harness, integrated harness connector and sensor of the post-processor are all fixedly installed on the outside of the upper guard plate.

[0007] There is an air heat dissipation layer between the sensor module and the integrated wiring harness and the upper guard plate.

[0008] One end of the side guard plate is fixed to the post-processor body, and the other end is connected to the upper guard plate.

[0009] The upper guard plate is provided with several installation avoidance slots.

[0010] The upper guard plate is provided with a urea pipe coolant pipe fixing bracket, and three holes at different heights are opened above the urea pipe coolant pipe fixing bracket. Beneficial effects

[0011] 1. The post-processor integrated shield effectively isolates the post-processor housing from high-temperature heat sources and protects surrounding flammable materials from damage. OEMs no longer need to add separate heat shields.

[0012] 2. The upper guard plate reserves enough space for mounting holes to facilitate sensor disassembly and installation, and facilitate later market maintenance;

[0013] 3. The upper guard plate and the side guard plate are connected together by bolts to increase rigidity and contribute to product reliability;

[0014] 4. The upper guard plate is integrated with the urea pipe, coolant pipe, and post-processor harness connector fixing bracket to improve the convenience of vehicle installation;

[0015] 5. All wiring harnesses, sensors, and connectors related to the post-processor are located outside the protective plate to reduce the risk of burning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the post-processor body;

[0018] Figure 3 Schematic diagram of the upper guard plate;

[0019] Figure 4 Schematic diagram of the side guard plate;

[0020] Figure 5 Schematic diagram of fixing the guard plate.

[0021] In the picture:

[0022] 1.1-Post-processor body, 1.2-Temperature sensor module, 1.3-NOx sensor module, 1.4-Integrated wiring harness connector bracket, 1.5-Urea pipe coolant pipe fixing bracket, 1.6-Side guard plate, 1.7-Upper guard plate;

[0023] 2.1-DOC assembly, 2.2-DPF assembly, 2.3-side guard plate bracket, 2.4-upper guard plate fixing studs, 2.5-mixer SCR assembly, 2.6-connection bracket;

[0024] 3.1 - Rear NOx sensor column bolt, 3.2 - Mounting hole, 3.3 - Front NOx sensor column bolt, 3.4 - Temperature sensor column bolt, 3.5 - Rivet nut for securing wiring harness, 3.6 - Mounting avoidance groove, 3.7 - Mounting avoidance groove, 3.8 - Mounting avoidance groove, 3.10 - Mounting avoidance groove, 3.11 - Mounting avoidance groove, 3.9 - Integrated wiring harness fixing stud;

[0025] 4.1 - Rivet nuts for fixing the integrated wiring harness bracket, 4.2 - Rivet nuts for fixing the urea pipe coolant pipe bracket, 4.3 - Rivet nuts for fixing the upper guard plate and side guard plate, 4.4 - Folded edge reinforcement plate, 4.5 - Side guard plate mounting holes;

[0026] 5.1-First bolt, 5.2-Second bolt, 5.3-Third bolt group, 5.4-Fourth bolt, 5.5-Fifth bolt group, 5.6-Stainless steel pipe clamp with rubber sheath. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] In order to more clearly illustrate the technical solution of the present invention, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without inventive work. In order to facilitate understanding of the present invention, the following will be described in more detail with reference to the drawings and specific embodiments.

[0029] like Figure 1 As shown:

[0030] This utility model features a China VI standard aftertreatment unit with an integrated protective plate, including an aftertreatment unit body 1.1, side shields 1.6, an upper shield 1.7, an integrated wiring harness connector mounting bracket 1.4, and a urea coolant pipe mounting bracket 1.5. The urea coolant pipe mounting bracket 1.5, located near the urea nozzle, has three holes at different heights for securing the urea coolant pipe. By mounting all wiring harnesses, connectors, and sensors on the outside of the upper shield, the risk of burnout is effectively reduced.

[0031] like Figure 2 As shown:

[0032] The aftertreatment unit consists of the DOC assembly 2.1, DPF assembly 2.2, and mixer SCR assembly 2.5 connected by V-clamps. The upper and lower cylinders are fixed together by a connecting bracket 2.6, which improves the overall rigidity of the aftertreatment unit and can also be used to connect and secure it to the vehicle. Two side guard brackets 2.3 are welded to the side end caps to secure the side guards 1.6; four sets of upper guard fixing studs 2.4 are welded to the cylinder to secure the upper guard 1.7.

[0033] like Figure 3 As shown:

[0034] Install the rear NOx sensor stud bolts 3.1, front NOx sensor stud bolts 3.3, and temperature sensor stud bolts 3.4 on the upper guard plate 1.7. The sensor module can be secured to the upper outer side of the upper guard plate 1.7 using nuts in conjunction with these NOx sensor stud bolts 3.1, 3.3, and 3.4. Install six integrated wiring harness mounting studs 3.9 to secure the integrated wiring harness. Reserve rivet nuts 3.5 for securing the sensor wiring harness. To facilitate the installation of temperature sensor probes and other components, create mounting clearances 3.6, 3.7, 3.8, 3.10, and 3.11 on the upper guard plate to facilitate later sensor assembly and disassembly. The upper guard plate 1.7 is bolted to the postprocessor body via four sets of mounting holes 3.2. Once installed, it completely shields the front, back, and top of the postprocessor, reducing heat radiation in three directions.

[0035] like Figure 4 As shown:

[0036] The side guard plate 1.6 is bolted to the aftertreatment unit via four mounting holes 4.5. The integrated wiring harness bracket securing rivet nut 4.1 secures the integrated wiring harness connector bracket 1.4. The urea coolant pipe bracket securing rivet nut 4.2 secures the urea coolant pipe bracket 1.5. The integrated wiring harness bracket securing rivet nut 4.1, the urea coolant pipe bracket securing rivet nut 4.2, and the upper and side guard plate securing rivet nuts 4.3 secure the side guard plate 1.6 and upper guard plate 1.7 together, increasing the guard plate's rigidity. Additionally, the straight edges of the side guard plate 1.6 are enhanced with hems 4.4, and the front face is stamped with reinforcing ribs for increased strength. Once installed, it shields the sides of the aftertreatment unit, reducing heat radiation from the sides.

[0037] like Figure 5 As shown:

[0038] The upper guard plate 1.7 and side guard plate 1.6 are connected by the first bolt 5.1, the second bolt 5.2, and the fourth bolt 5.4. The upper guard plate 1.7, the side guard plate 1.6, and the urea pipe and coolant pipe fixing bracket 1.5 are connected by the third bolt group 5.3. The upper guard plate 1.7, the side guard plate 1.6, and the integrated wiring harness connector fixing bracket 1.4 are connected by the fifth bolt group 5.5. The sensor wiring harness and the integrated wiring harness pass through the stainless steel pipe clamp 5.6 with an inner rubber sheath and are fixed to the guard plate with bolts.

[0039] This utility model addresses the issue of post-processor sensors, wiring harnesses, and connectors melting due to excessive DPF regeneration temperatures. This compact post-processor features integrated upper and side guards, offering high versatility and adaptability to various vehicle layouts. All post-processor wiring harnesses, sensors, and connectors are located outside the guards, effectively reducing the risk of melting. Ample mounting holes are provided on the guards for easy assembly and disassembly. Pre-installed mounting brackets for the urea coolant line and post-processor wiring harness connectors significantly enhance installation convenience. This utility model is particularly suitable for vehicles with the post-processor positioned within the vehicle cabin.

Claims

1. An integrated guard plate post-processor, characterized in that: An upper guard plate is fixedly installed on the post-processor body, and the upper guard plate covers the front, back and upper areas of the post-processor body. Side guard plates are fixedly installed on the sides of the post-processor body, and the side guard plates cover the sides of the post-processor body. The sensor harness, integrated harness connector and sensor of the post-processor are all fixedly installed on the outside of the upper guard plate.

2. The integrated guard plate post-processor according to claim 1, characterized in that: There is an air heat dissipation layer between the sensor module and the integrated wiring harness and the upper guard plate.

3. The integrated guard plate post-processor according to claim 1, characterized in that: One end of the side guard plate is fixed to the post-processor body, and the other end is connected to the upper guard plate.

4. The integrated guard plate post-processor according to claim 1, characterized in that: The upper guard plate is provided with several installation avoidance slots.

5. The integrated guard plate post-processor according to claim 1, characterized in that: The upper guard plate is provided with a urea pipe coolant pipe fixing bracket, and three holes at different heights are opened above the urea pipe coolant pipe fixing bracket.

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