WO2021227338A1 - 尾气后处理封装的隔热支架 - Google Patents

尾气后处理封装的隔热支架 Download PDF

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Publication number
WO2021227338A1
WO2021227338A1 PCT/CN2020/118239 CN2020118239W WO2021227338A1 WO 2021227338 A1 WO2021227338 A1 WO 2021227338A1 CN 2020118239 W CN2020118239 W CN 2020118239W WO 2021227338 A1 WO2021227338 A1 WO 2021227338A1
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Prior art keywords
bracket
heat
exhaust gas
mounting hole
treatment package
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PCT/CN2020/118239
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English (en)
French (fr)
Inventor
李硕
殷雷
刘豫辉
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天纳克（苏州）排放系统有限公司
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Publication of WO2021227338A1 publication Critical patent/WO2021227338A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation

Definitions

  • the invention relates to a heat-insulating support packaged for exhaust gas post-treatment, and belongs to the technical field of engine exhaust gas post-treatment.
  • the exhaust gas aftertreatment package used to match diesel engines usually includes several carriers coated with catalyst coatings, such as diesel oxidation catalysts, diesel particulate traps, and selective catalytic reduction agents, etc. .
  • the inlet and outlet ends of the carrier are generally provided with various sensors for measuring the concentration and/or back pressure of related substances in the exhaust gas. These sensors need to be connected to the controller through the wiring harness connected to them.
  • the shell temperature of the exhaust gas post-treatment package is also relatively high. How to insulate the wiring harness and/or other electronic components near the shell of the exhaust gas post-treatment package? To reduce the adverse effects of high temperature on it is a technical problem that needs to be solved by those skilled in the art.
  • the purpose of the present invention is to provide a heat-insulating bracket for exhaust gas post-treatment packaging, which has a better heat-insulating effect.
  • an exhaust gas post-treatment package heat insulation bracket which includes a fixing part to be welded to the shell of the exhaust gas post-treatment package, and a connection connected to the fixing part Part and a bracket part for installing a wire harness connector
  • the fixing part includes a welding part to be welded to the housing and a support part extending integrally with the welding part, and the support part makes the bracket part It is separated from the housing at a certain distance
  • the connecting portion includes a first extension portion located on one side of the bracket portion and a second extension portion located on the other side of the bracket portion.
  • the welding portion is provided with a circular arc surface welded to the housing, and the connecting portion is detachably connected to the fixing portion.
  • the fixing part includes a mounting plate at the top end of the supporting part, the mounting plate is perpendicular to the supporting part, and the mounting plate is provided with a plurality of first mounting holes;
  • the first extension part and/or the second extension part are provided with a second mounting hole aligned with the first mounting hole;
  • the fixing element matched with the second mounting hole.
  • the fixing element includes a bolt passing through the first mounting hole and the second mounting hole, and a nut matched with the bolt.
  • the mounting board is coated with an anti-radiation material to reduce the amount of heat radiation from a high-temperature object to a low-temperature object.
  • the heat-insulating bracket of the exhaust gas after-treatment package further includes a heat-insulating plate or a heat-insulating plate installed between the mounting plate and the first extension part and the second extension part. cotton.
  • the first extension portion is flush with the second extension portion
  • the bracket portion is perpendicular to the first extension portion and the second extension portion
  • the bracket portion is aligned with the
  • the first extension portion is integrally provided
  • the bracket portion is provided with a mounting hole for mounting the wire harness connector and a heat insulation groove located at the lower part of the mounting hole, and the width of the heat insulation groove is greater than the width of the mounting hole.
  • the bracket part and the supporting part are integrally arranged, and the supporting part is provided with a plurality of first mounting holes;
  • the connecting part includes a first mounting connected to the first extension part.
  • Part and a second mounting part connected to the second extension part, the first mounting part and the second mounting part are both provided with a second perforation aligned with the first mounting hole;
  • the heat-insulating support for processing the package includes a fixing element matched with the first mounting hole and the second mounting hole.
  • the first extension portion and the second extension portion are arc-shaped and the opening direction is away from the housing.
  • the first extension portion and/or the second extension portion are coated with a radiation-proof material to reduce the amount of heat radiation of the high-temperature object to the low-temperature object.
  • the present invention provides a support portion to space the bracket portion and the housing at a certain distance, thereby improving the heat insulation effect.
  • the heat dissipation area of the heat insulation bracket can be increased, the temperature of the heat insulation bracket can be reduced, and the heat radiation of the housing can be blocked, and the temperature of the wire harness connector and the wire harness surface can be reduced.
  • Fig. 1 is a three-dimensional schematic diagram of the thermal insulation bracket of the exhaust gas post-treatment package of the present invention in an embodiment.
  • Fig. 2 is a perspective schematic view of Fig. 1 from another angle.
  • Fig. 3 is a front view of Fig. 2.
  • Fig. 4 is a left side view of Fig. 2.
  • Fig. 5 is a partially exploded perspective view of Fig. 1.
  • Fig. 6 is a three-dimensional schematic diagram of the thermal insulation bracket of the exhaust gas post-treatment package of the present invention in another embodiment.
  • Fig. 7 is a left side view of Fig. 6.
  • Fig. 8 is a rear view of Fig. 6.
  • Fig. 9 is a partially exploded perspective view of Fig. 1.
  • Fig. 10 is a partially exploded perspective view of Fig. 9 from another angle.
  • the present invention discloses an exhaust gas post-treatment package heat insulation support 100, which includes a fixing part 1 for welding on the housing (not shown) of the exhaust gas post-treatment package
  • the connecting part 2 connected to the fixing part 1 and the bracket part 3 for installing the wire harness connector.
  • the fixing portion 1 includes a welding portion 11 for welding to the housing and a supporting portion 12 extending integrally with the welding portion 11, and the supporting portion 12 separates the bracket portion 3 from the housing A certain distance g.
  • the connecting portion 2 includes a first extension portion 21 located on one side of the bracket portion 3 and a second extension portion 22 located on the other side of the bracket portion 3.
  • the casing of the exhaust gas post-treatment package is substantially cylindrical.
  • the welding portion 11 is provided with a circular arc surface 111 welded to the casing, and the circular arc surface 111 is ensured to match the outer surface of the casing to facilitate welding.
  • the connecting portion 2 is detachably connected to the fixing portion 1.
  • the connecting portion 2 and the fixing portion 1 can also be welded and fixed together.
  • the fixing portion 1 includes a mounting plate 13 located at the top end of the supporting portion 12, and the mounting plate 13 is perpendicular to the supporting portion 12.
  • the mounting plate 13 is provided with a number of first mounting holes 131.
  • the supporting portion 12 extends generally in a vertical direction, and the mounting plate 13 extends generally in a horizontal direction.
  • the mounting plate 13 and the top end of the supporting portion 12 are welded together.
  • the two ends of the mounting plate 13 are respectively located on both sides of the supporting portion 12.
  • the mounting plate 13 can play a role of heat insulation to a certain extent.
  • the mounting board 13 is coated with an anti-radiation material to reduce the amount of heat radiation from the high-temperature object to the low-temperature object.
  • the first extension portion 21 and/or the second extension portion 22 is provided with a second mounting hole 23 aligned with the first mounting hole 131.
  • the heat-insulating bracket 100 of the exhaust gas post-treatment package includes a fixing element 4 that is matched with the first mounting hole 131 and the second mounting hole 23.
  • the fixing element 4 includes a bolt 41 passing through the first mounting hole 131 and the second mounting hole 23 and a nut 42 matching with the bolt 41.
  • the bolt 41 presses against the upper surface of the first extension part 21 and the second extension part 22, and the nut 42 presses against the bottom surface of the mounting plate 13.
  • the first extension portion 21 and the second extension portion 22 are both horizontally arranged and flush with each other.
  • the bracket part 3 is perpendicular to the first extension part 21 and the second extension part 22.
  • the first extension portion 21 is integrally provided with the bracket portion 3 and is substantially L-shaped.
  • the connecting portion 2 further includes an abutting portion 221 that is integrally bent with the second extension portion 22 and is substantially perpendicular to the second extension portion 22, wherein the abutment portion 221 is used for welding and fixing to the bracket The lower part of section 3.
  • the bracket part 3 is provided with an installation hole 31 for installing a wire harness connector.
  • the bracket portion 3 is further provided with a heat-insulating groove 32 located at the lower part of the mounting hole 31, the width of the heat-insulating groove 32 is greater than the width of the mounting hole 31, so as to minimize the heat transfer area.
  • the thermal insulation bracket 100 for the exhaust gas post-treatment package further includes a thermal insulation board or thermal insulation wool 5 installed between the mounting plate 13 and the first extension 21 and the second extension 22 .
  • the thermal insulation board or thermal insulation cotton 5 is provided with a plurality of openings 51.
  • the support portion 3 and the support portion 12 are integrally provided.
  • the supporting portion 12 is provided with a plurality of first mounting holes 131.
  • the connecting portion 2 includes a first mounting portion 24 connected to the first extension portion 21 and a second mounting portion 25 connected to the second extension portion 22.
  • the first mounting portion 24 and the second mounting portion 25 are located on both sides of the supporting portion 12. Both the first mounting portion 24 and the second mounting portion 25 are provided with a second through hole 23 aligned with the first mounting hole 131.
  • the heat-insulating bracket 100 for the exhaust gas post-treatment package further includes a fixing element 4 that cooperates with the first mounting hole 131 and the second mounting hole 23.
  • the fixing element 4 includes a bolt 41 passing through the first mounting hole 131 and the second mounting hole 23 and a nut 42 matching with the bolt 41.
  • the bolt 41 is pressed against one side of the first mounting portion 24, and the nut 42 is pressed against the other side of the second mounting portion 25.
  • the positions of the bolt 41 and the nut 42 can also be interchanged.
  • the first extension portion 21 and the second extension portion 22 are arc-shaped, and the opening direction is away from the casing of the exhaust gas after-treatment package.
  • the first extension portion 21 and/or the second extension portion 22 is coated with an anti-radiation material to reduce the amount of heat radiation of the high-temperature object to the low-temperature object.
  • the bracket part 3 is provided with an installation hole 31 for installing a wire harness connector.
  • the bracket portion 3 is further provided with a heat-insulating groove 32 located at the lower part of the mounting hole 31, the width of the heat-insulating groove 32 is greater than the width of the mounting hole 31, so as to minimize the heat transfer area.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

一种尾气后处理封装的隔热支架（100），其包括用以焊接于尾气后处理封装的壳体上的固定部（1）、连接在固定部（1）上的连接部（2）以及用以安装线束接头的支架部（3），其中固定部（1）包括用以焊接到壳体上的焊接部（11）以及与焊接部（11）一体延伸的支撑部（12），支撑部（12）使支架部（3）与壳体间隔一定的距离；连接部（2）包括位于支架部（3）的一侧的第一延伸部（21）以及位于支架部（3）的另一侧的第二延伸部（22）。

Description

尾气后处理封装的隔热支架
本申请要求了申请日为2020年05月12日、申请号为202010395719.5、发明名称为“尾气后处理封装的隔热支架”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种尾气后处理封装的隔热支架，属于发动机尾气后处理技术领域。
背景技术
随着排放法规的不断升级，用以与柴油发动机相配套的尾气后处理封装通常包括涂覆有催化剂涂层的若干载体，例如柴油氧化催化器、柴油颗粒捕集器以及选择性催化还原剂等。其中载体的进气端和出气端一般会设置用以测量尾气中相关物质的浓度和/或背压的各种传感器。这些传感器需要通过与之相连的线束与控制器进行连接。然而，由于尾气后处理封装中的尾气温度较高，导致尾气后处理封装的壳体温度也比较高，如何对尾气后处理封装的壳体附近的线束和/或其它电子元器件进行隔热，以降低高温对其产生不利影响，是所属技术领域的技术人员需要解决的技术问题。
发明内容
本发明的目的在于提供一种尾气后处理封装的隔热支架，其具有较好的隔热效果。
为实现上述目的，本发明采用如下技术方案：一种尾气后处理封装的隔热支架，其包括用以焊接于尾气后处理封装的壳体上的固定部、连接在所述固定部上的连接部以及用以安装线束接头的支架部，其中所述固定部包括用以焊接到所述壳体上的焊接部以及与所述焊接部一体延伸的支撑部，所述支撑部使所 述支架部与所述壳体间隔一定的距离；所述连接部包括位于所述支架部的一侧的第一延伸部以及位于所述支架部的另一侧的第二延伸部。
作为本发明进一步改进的技术方案，所述焊接部设有焊接于所述壳体的圆弧面，所述连接部可拆卸地连接在所述固定部上。
作为本发明进一步改进的技术方案，所述固定部包括位于所述支撑部的顶端的安装板，所述安装板垂直于所述支撑部，所述安装板设有若干第一安装孔；所述第一延伸部和/或所述第二延伸部设有与所述第一安装孔对齐的第二安装孔；所述尾气后处理封装的隔热支架包括与所述第一安装孔与所述第二安装孔相配合的固定元件。
作为本发明进一步改进的技术方案，所述固定元件包括穿过所述第一安装孔与所述第二安装孔的螺栓以及与所述螺栓相配合的螺母。
作为本发明进一步改进的技术方案，所述安装板上涂覆有防辐射材料，用以降低高温物体对低温物体的热辐射量。
作为本发明进一步改进的技术方案，所述尾气后处理封装的隔热支架还包括安装在所述安装板与所述第一延伸部以及所述第二延伸部之间的隔热板或者隔热棉。
作为本发明进一步改进的技术方案，所述第一延伸部与所述第二延伸部平齐，所述支架部垂直于所述第一延伸部和所述第二延伸部，所述支架部与所述第一延伸部一体设置，所述支架部设有用以安装线束接头的安装孔以及位于所述安装孔的下部的隔热槽，所述隔热槽的宽度大于所述安装孔的宽度。
作为本发明进一步改进的技术方案，所述支架部与所述支撑部一体设置，所述支撑部设有若干第一安装孔；所述连接部包括与所述第一延伸部相连的第一安装部以及与所述第二延伸部相连的第二安装部，所述第一安装部与所述第二安装部均设有与所述第一安装孔相对齐的第二穿孔；所述尾气后处理封装的隔热支架包括与所述第一安装孔以及所述第二安装孔相配合的固定元件。
作为本发明进一步改进的技术方案，所述第一延伸部与所述第二延伸部呈圆弧状且开口方向远离所述壳体。
作为本发明进一步改进的技术方案，所述第一延伸部和/或所述第二延伸部上涂覆有防辐射材料，用以降低高温物体对低温物体的热辐射量。
相较于现有技术，本发明通过设置支撑部，使所述支架部与所述壳体间隔一定的距离，从而提高了隔热效果。另外，通过设置第一延伸部和第二延伸部可以增加隔热支架的散热面积，降低隔热支架的温度，同时可以阻挡所述壳体的热辐射，降低线束接头和线束表面的温度。
附图说明
图1是本发明尾气后处理封装的隔热支架在一种实施方式中的立体示意图。
图2是图1另一角度的立体示意图。
图3是图2的主视图。
图4是图2的左视图。
图5是图1的部分立体分解图。
图6是本发明尾气后处理封装的隔热支架在另一种实施方式中的立体示意图。
图7是图6的左视图。
图8是图6的后视图。
图9是图1的部分立体分解图。
图10是图9另一角度的部分立体分解图。
具体实施方式
下面将结合附图详细地对本申请示例性具体实施方式进行说明。如果存在若干具体实施方式，在不冲突的情况下，这些实施方式中的特征可以相互组合。当描述涉及附图时，除非另有说明，不同附图中相同的数字表示相同或相似的要素。
请参图1至图5所示，本发明揭示了一种尾气后处理封装的隔热支架100，其包括用以焊接于尾气后处理封装的壳体(未图示)上的固定部1、连接在所 述固定部1上的连接部2以及用以安装线束接头的支架部3。所述固定部1包括用以焊接到所述壳体上的焊接部11以及与所述焊接部11一体延伸的支撑部12，所述支撑部12使所述支架部3与所述壳体间隔一定的距离g。所述连接部2包括位于所述支架部3的一侧的第一延伸部21以及位于所述支架部3的另一侧的第二延伸部22。
在本发明的一种实施方式中，所述尾气后处理封装的壳体大致呈圆柱状。所述焊接部11设有焊接于所述壳体的圆弧面111，且确保所述圆弧面111与所述壳体的外表面相匹配，以便于焊接。在本发明的一种实施方式中，所述连接部2可拆卸地连接在所述固定部1上。当然，在其它实施方式中，所述连接部2与所述固定部1也可以焊接固定在一起。
请参照图1至图5所示，在本发明的一种实施方式中，所述固定部1包括位于所述支撑部12的顶端的安装板13，所述安装板13垂直于所述支撑部12，所述安装板13设有若干第一安装孔131。所述支撑部12大致沿竖直方向延伸，所述安装板13大致沿水平方向延伸。所述安装板13与所述支撑部12的顶端焊接在一起。所述安装板13的两端分别位于所述支撑部12的两侧。所述安装板13能够起到一定的隔热作用。优选地，所述安装板13上涂覆有防辐射材料，用以降低高温物体对低温物体的热辐射量。
所述第一延伸部21和/或所述第二延伸部22设有与所述第一安装孔131对齐的第二安装孔23。所述尾气后处理封装的隔热支架100包括与所述第一安装孔131与所述第二安装孔23相配合的固定元件4。所述固定元件4包括穿过所述第一安装孔131与所述第二安装孔23的螺栓41以及与所述螺栓41相配合的螺母42。所述螺栓41抵压在第一延伸部21与第二延伸部22的上面，所述螺母42抵压在安装板13的底面。
具体地，在本发明的一种实施方式中，所述第一延伸部21与所述第二延伸部22均水平设置且相互平齐。所述支架部3垂直于所述第一延伸部21和所述第二延伸部22。所述第一延伸部21与支架部3一体设置且大致呈L形。
所述连接部2还包括与所述第二延伸部22一体弯折且大致垂直于所述第二 延伸部22的抵接部221，其中所述抵接部221用以焊接固定于所述支架部3的下半部分。
所述支架部3设有用以安装线束接头的安装孔31。优选地，所述支架部3还设有位于所述安装孔31的下部的隔热槽32，所述隔热槽32的宽度大于所述安装孔31的宽度，以尽量降低热传递的面积。
优选地，所述尾气后处理封装的隔热支架100还包括安装在所述安装板13与所述第一延伸部21以及所述第二延伸部22之间的隔热板或者隔热棉5。所述隔热板或者隔热棉5设有若干开孔51。
请参照图6至图10所示，在本发明的另一种实施方式中，所述支架部3与所述支撑部12一体设置。所述支撑部12设有若干第一安装孔131。所述连接部2包括与所述第一延伸部21相连的第一安装部24以及与所述第二延伸部22相连的第二安装部25。所述第一安装部24与所述第二安装部25位于所述支撑部12的两侧。所述第一安装部24与所述第二安装部25均设有与所述第一安装孔131相对齐的第二穿孔23。
所述尾气后处理封装的隔热支架100还包括与所述第一安装孔131以及所述第二安装孔23相配合的固定元件4。所述固定元件4包括穿过所述第一安装孔131与所述第二安装孔23的螺栓41以及与所述螺栓41相配合的螺母42。所述螺栓41抵压在所述第一安装部24的一侧，所述螺母42抵压在所述第二安装部25的另一侧。当然，在其它实施方式中，所述螺栓41与所述螺母42的位置也可以互换。在本发明图示的实施方式中，所述第一延伸部21与所述第二延伸部22呈圆弧状且开口方向远离所述尾气后处理封装的壳体。优选地，所述第一延伸部21和/或所述第二延伸部22上涂覆有防辐射材料，用以降低高温物体对低温物体的热辐射量。
所述支架部3设有用以安装线束接头的安装孔31。优选地，所述支架部3还设有位于所述安装孔31的下部的隔热槽32，所述隔热槽32的宽度大于所述安装孔31的宽度，以尽量降低热传递的面积。本发明通过设置第一延伸部21和第二延伸部22，可以增加隔热支架100的散热面积，降低隔热支架100的温 度，同时可以阻挡所述壳体的热辐射，降低线束接头和线束表面的温度。
以上实施例仅用于说明本发明而并非限制本发明所描述的技术方案，对本说明书的理解应该以所属技术领域的技术人员为基础，尽管本说明书参照上述的实施例对本发明已进行了详细的说明，但是，本领域的普通技术人员应当理解，所属技术领域的技术人员仍然可以对本发明进行修改或者等同替换，而一切不脱离本发明的精神和范围的技术方案及其改进，均应涵盖在本发明的权利要求范围内。

Claims (10)

  1. 一种尾气后处理封装的隔热支架，其特征在于：包括用以焊接于尾气后处理封装的壳体上的固定部、连接在所述固定部上的连接部以及用以安装线束接头的支架部，其中所述固定部包括用以焊接到所述壳体上的焊接部以及与所述焊接部一体延伸的支撑部，所述支撑部使所述支架部与所述壳体间隔一定的距离；所述连接部包括位于所述支架部的一侧的第一延伸部以及位于所述支架部的另一侧的第二延伸部。
  2. 如权利要求1所述的尾气后处理封装的隔热支架，其特征在于：所述焊接部设有焊接于所述壳体的圆弧面，所述连接部可拆卸地连接在所述固定部上。
  3. 如权利要求1所述的尾气后处理封装的隔热支架，其特征在于：所述固定部包括位于所述支撑部的顶端的安装板，所述安装板垂直于所述支撑部，所述安装板设有若干第一安装孔；所述第一延伸部和/或所述第二延伸部设有与所述第一安装孔对齐的第二安装孔；所述尾气后处理封装的隔热支架包括与所述第一安装孔与所述第二安装孔相配合的固定元件。
  4. 如权利要求3所述的尾气后处理封装的隔热支架，其特征在于：所述固定元件包括穿过所述第一安装孔与所述第二安装孔的螺栓以及与所述螺栓相配合的螺母。
  5. 如权利要求3所述的尾气后处理封装的隔热支架，其特征在于：所述安装板上涂覆有防辐射材料，用以降低高温物体对低温物体的热辐射量。
  6. 如权利要求3所述的尾气后处理封装的隔热支架，其特征在于：所述尾气后处理封装的隔热支架还包括安装在所述安装板与所述第一延伸部以及所述第二延伸部之间的隔热板或者隔热棉。
  7. 如权利要求1所述的尾气后处理封装的隔热支架，其特征在于：所述第一延伸部与所述第二延伸部平齐，所述支架部垂直于所述第一延伸部和所述第 二延伸部，所述支架部与所述第一延伸部一体设置，所述支架部设有用以安装线束接头的安装孔以及位于所述安装孔的下部的隔热槽，所述隔热槽的宽度大于所述安装孔的宽度。
  8. 如权利要求1所述的尾气后处理封装的隔热支架，其特征在于：所述支架部与所述支撑部一体设置，所述支撑部设有若干第一安装孔；所述连接部包括与所述第一延伸部相连的第一安装部以及与所述第二延伸部相连的第二安装部，所述第一安装部与所述第二安装部均设有与所述第一安装孔相对齐的第二穿孔；所述尾气后处理封装的隔热支架包括与所述第一安装孔以及所述第二安装孔相配合的固定元件。
  9. 如权利要求8所述的尾气后处理封装的隔热支架，其特征在于：所述第一延伸部与所述第二延伸部呈圆弧状且开口方向远离所述壳体。
  10. 如权利要求8所述的尾气后处理封装的隔热支架，其特征在于：所述第一延伸部和/或所述第二延伸部上涂覆有防辐射材料，用以降低高温物体对低温物体的热辐射量。
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