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Storing box heating device for vehicle reducing agent

A technology of heating device and reducing agent, which is applied in the direction of electric heating device, noise reduction device, exhaust device, etc., can solve the problems of high welding scrap rate, less wiring harness of heating body, high manufacturing cost, etc., so as to improve system life, avoid corrosion, reduce The effect of production costs

Pending Publication Date: 2018-06-22
YAPP AUTOMOTIVE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Route 2: Install independent heating elements at multiple positions in the box, usually electric heating, and heating at the same time. This scheme requires pre-drilling holes on the box, and then welding the heating elements inside the box. One heating element, high welding scrap rate, high manufacturing cost, wiring harness is difficult due to the exposed wiring harness of multiple electric heating bodies
In addition, the reductant storage tank for cars is generally close to the fuel tank or fuel pipeline, and the exposed wiring harness will pose a safety hazard if the insulation fails
Route 3: The Chinese patent whose publication number is CN103250464A pastes the flexible heating material on the inner wall of the storage box to realize overall heating. The appearance is simple, but the manufacturing process of the flexible heating body or the storage box installed with the heating element is more complicated, and the production cost is higher. At the same time, the built-in wire harness penetrates the box and needs to be sealed accordingly

Method used

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  • Storing box heating device for vehicle reducing agent
  • Storing box heating device for vehicle reducing agent
  • Storing box heating device for vehicle reducing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: see figure 1, a storage box heating device for vehicle reductant, the heating device is set as a modular heating assembly, the modular heating assembly includes a heat conduction substrate 1, and one or more heating units are arranged on the heat conduction substrate 1 4. The heating device also includes a power supply distributor 3, one end of the power supply distributor 3 is integrated with the power distribution terminal of the heating unit to connect to the wire of the heating unit, one end leads out to the box, and is externally connected to the heating control unit of the SCR controller. This technical solution reduces the workload of opening holes and welding on the box body structurally. The heating unit is embedded in the storage box wall, and the heating unit is embedded in the box shell at the same time. Only one quick joint can realize the heating unit. The overall power supply does not need to be sealed, which effectively reduces the difficul...

Embodiment 2

[0023] Example 2: see figure 1 , figure 2 , as an improvement of the present invention, the modularized heating assembly is embedded in the wall of the storage box 7 . The modular heating unit assembly structure is embedded in the storage box wall, that is, the heating unit assembly is installed and fixed in the box wall during the injection molding process of the box body, and is wrapped by the box body material to realize isolation from the reducing agent, so as to avoid reducing agent Corrosion to heating unit. At the same time, avoid the corrosion of the heating assembly by dust and water vapor outside the box, and improve the life of the system. In the injection molding process of the reductant storage box of the present invention, the so-called modular heating assembly is fixed in the storage box molding cavity by tooling, and embedded in the inner wall of the box during the box body forming process to realize the overall installation and molding, heating the substrat...

Embodiment 3

[0024] Embodiment 3: see figure 1 , as an improvement of the present invention, the modular heating assembly also includes a bracket 6, which is used to fix the power supply wire of the heating unit, and the function of the bracket is to fix the heating unit and the wires of each sensor to prevent Changes in the position of the neutral wire lead to defects in the box molding. The conductive substrate 1 is configured as a metal heat pipe, copper, aluminum or stainless steel or other good heat conductors. The rest of the structures and advantages are exactly the same as in Embodiment 1.

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PUM

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Abstract

The invention relates to a storing box heating device for a vehicle reducing agent. The storing box heating device for the vehicle reducing agent is characterized in that the heating device is arranged into a modularized heating assembly; the modularized heating assembly comprises a heat conduction substrate which is provided with one or more heating units; the heating device further comprises a power supply distributor; a heating unit power distribution terminal is integrated at one end of the power supply distributor and connected with a heating unit wire; and one end of the power supply distributor is led out of a box body, and is externally connected with an SCR controller heating control unit. According to the technical scheme, the overall structural design is ingenious and compact, by means of the technical scheme, the shape and the heating power of heating units can be flexibly changed, so as to adapt to reducing agent storing boxes in different size and shape specifications; bymeans of the scheme, the overall heating capacity of a reducing agent storing box can be effectively improved, so that a reducing agent can be uniformly heated in the storing box, the temperature ofa single heating unit is lowered, the service life of the system is prolonged, the heat transfer efficiency is improved, and the temperature rising speed is increased.

Description

technical field [0001] The invention relates to a heating device, in particular to a storage tank heating device for a vehicle reductant, and belongs to the technical field of structural components of the reductant storage tank. Background technique [0002] For the emission of nitrogen oxide pollutants from diesel engines, various countries have set extremely high limit requirements, which makes engine manufacturers start to use SCR technology to meet the limits of engine nitrogen oxide emissions. Selective Catalytic Reduction, referred to as SCR) This method reduces nitrogen oxides by injecting a reducing agent (usually ammonia, SCR technology is to inject urea solution into the exhaust pipe, and the urea solution is hydrolyzed to generate ammonia) into the exhaust pipe ; The reducing agent must be consumed in the SCR technology. The reducing agent is generally special urea (Adblue), and the reducing agent is stored in a special storage box, which is generally made of HDP...

Claims

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Application Information

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IPC IPC(8): F01N3/20H05B1/02
CPCH05B1/0236F01N3/2013F01N3/2066F01N2610/1406Y02A50/20
Inventor 姜林刘亮张艳波宋庆华魏晓
Owner YAPP AUTOMOTIVE PARTS