CN216406936U

CN216406936U - Automobile exhaust treatment device

Info

Publication number: CN216406936U
Application number: CN202122494380.7U
Authority: CN
Inventors: 卞海阳; 陈金业; 李�权; 蒲生发
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-04-29
Anticipated expiration: 2031-10-15

Abstract

The utility model belongs to the technical field of automobile parts, and particularly relates to an automobile exhaust treatment device which comprises a cylinder body, wherein GPF (general purpose filter) is contained in the cylinder body, a gas inlet end and a gas outlet end of the cylinder body are respectively provided with a measuring port, one end of a detection assembly, which is provided with a detection element, is fixedly connected with the measuring port, and the other end of the detection assembly is electrically connected with a signal processing device through a plug-in element. The detection end of the detection assembly is fixedly connected with the cylinder body of the device, so that the detection assembly can be prevented from deviating under the external action of the connection position of the detection assembly and the cylinder body to influence the air tightness of the cylinder body or damage a detection element in a use state; when dismantling tail gas processing apparatus, only need extract the plug element who is used for the propagating electrical signal, remove being connected of barrel both ends and exhaust duct, not only make tail gas processing apparatus installation more convenient with the dismantlement, make the stability and the reliability that the detecting element that is located the detection end is connected with the barrel promote by a wide margin moreover.

Description

Automobile exhaust treatment device

Technical Field

The utility model belongs to the technical field of automobile parts, and particularly relates to an automobile exhaust treatment device.

Background

To meet the requirements of emission regulations, GPF (Gasoline Particulate Filter) is currently commonly used to reduce Particulate matter in automobile exhaust. The GPF is internally provided with a plurality of parallel axial honeycomb channels, two ends of the adjacent honeycomb channels are alternately blocked, and the airflow entering the trap can only flow out from wall surface gaps, so that carbon particles in the airflow can be adsorbed on the inner wall surfaces of the channels. When the amount of trapped carbon particles is large, the problems of exhaust back pressure being in the way and fuel economy being reduced occur, and GPF needs to be regenerated, and the trapped particles are burned off to recover the filtering performance.

People can not dismantle tail gas processing apparatus in order to know wherein the volume of entrapment carbon granule when the driving, adopt the pressure difference method to judge the volume of carbon granule in GPF usually at present, gather the pressure differential of GPF front and back passageway promptly to granule accumulation degree in the particle catcher is judged according to the pressure differential. The GPF is frequently disassembled and replaced in the test development process, the differential pressure sensor assembled on the GPF through threads is frequently damaged or poorly contacted, and the seal at the connecting part is easily failed after the GPF is disassembled and replaced for a plurality of times, so that the test failure is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automobile exhaust treatment device which is convenient to detach and replace and can improve the reliability of a detection assembly.

In order to realize the purpose, the utility model adopts the technical scheme that: the utility model provides an automobile exhaust processing apparatus, includes that inside holds GPF's barrel, the inlet end of barrel and the end of giving vent to anger are equipped with respectively and measure the mouth, and the one end that the detection subassembly was equipped with detecting element is connected with measuring mouth fixed connection, and the other end passes through plug-in element and is connected with signal processing device electricity.

Compared with the prior art, the utility model has the following technical effects: the detection end of the detection assembly is fixedly connected with the cylinder body of the device, and the detection assembly can be prevented from deviating under the external action of the joint of the detection assembly and the cylinder body to influence the air tightness of the cylinder body or damage a detection element in a use state; when dismantling tail gas processing apparatus, only need extract the plug element who is used for the propagating electrical signal, remove being connected of barrel both ends and exhaust duct, not only make tail gas processing apparatus installation more convenient with the dismantlement, make the stability and the reliability that the detecting element that is located the detection end is connected with the barrel promote by a wide margin moreover.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged partial schematic view of the present invention;

FIG. 3 is a schematic view of the connection of the probe end of the probe assembly to the barrel.

In the figure: 10. the measuring device comprises a cylinder body, a leading-in section 10a, a leading-out section 10b, a measuring table 11, a measuring port 111, a connecting base 112, an inner concave part 12, an outer convex part 13, a detecting component 20, a detecting element 21, a core body 211, a plug-in element 22 and a shell 23.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

The utility model provides an automobile exhaust processing apparatus, includes that inside holds GPF's barrel 10, the inlet end of barrel 10 is equipped with respectively with the end of giving vent to anger and measures mouth 111, and the one end that detection subassembly 20 was equipped with detecting element 21 is connected with measuring mouth 111 fixed connection, and the other end passes through plug element 22 and is connected with signal processing device electricity. The detection component 20 and the cylinder 10 are connected into a whole, so that the detection component 20 and the cylinder 10 do not need to be separated when the tail gas treatment device is installed and disassembled, and the detection element 21 or the sealing component of the detection component 20 can be effectively prevented from being damaged in the assembling and disassembling process. In this embodiment, the detection element 21 collects the pressure signal in the cylinder 10 and converts the pressure signal into an electrical signal, and the electrical signal is transmitted to the signal processing device via the plug element 22, the plug element 22 can be connected to the signal processing device by using common electrical connectors such as a wiring terminal and a quick connector, the cable and the conventional electrical connector have good plugging resistance, and the repeated assembly and disassembly does not affect the transmission of the electrical signal.

In this embodiment, as shown in fig. 2 and 3 specifically, the cylinder 10 includes a planar measuring table 11, a ring-shaped connection base 112 is disposed at an outer opening edge of a measuring opening 111 on the measuring table 11, and the detecting assembly 20 includes a housing 23 welded to the connection base 112. The barrel 10 and the detection assembly 20 are fixedly connected with the housing 23 through the connection base 112. The shell 23 is in a tubular column shape with one end having a large pipe diameter and the other end having a small pipe diameter, the detecting element 21 is installed at the large pipe diameter section of the shell 23, and the data transmission cable is led out from the small tubular column section. For convenience of description, the end adjacent to the barrel 10 is defined as the front end and the end away from the barrel 10 is defined as the rear end. The core 211 located at the front end of the detecting element 21 extends forward into the cavity of the cylinder 10, so that the core 211 can reliably collect the pressure information in the cylinder 10.

As shown in fig. 1, the connection bases 112 provided at the mouth edges of the measurement ports 111 are located on the same side in the circumferential direction of the cylinder 10, which indicates that the two measurement ports 111 are arranged adjacent to each other in the circumferential direction of the cylinder 10. The base body of the connection base 112 is arranged in a splayed shape, and the openings of the two measurement ports 111 are arranged oppositely, so that the housings 23 of the two detection assemblies 20 extend from the connection base 112 in an oblique direction to directions away from each other to meet the arrangement requirement.

In this embodiment, the two ends of the cylinder 10 are integrally a frustum-shaped gas introduction section 10a and a gas introduction section 10b, the gas introduction section 10a and the gas introduction section 10b are respectively provided with the measuring table 11, the wall body of the gas introduction section 10a and the gas introduction section 10b connected with the table edge of the measuring table 11 comprises an inner concave part 12 and an outer convex part 13, the inner concave part 12 is connected with the table edge of the measuring table 11 adjacent to the middle section of the cylinder 10, the outer convex part 13 forms an avoidance cavity to accommodate the core 211 and is connected with the table edge of the measuring table 11 far away from the middle section of the cylinder 10, so that the circumferential direction of the core 211 can be fully contacted with gas, and the detection accuracy is ensured.

Claims

1. An automobile exhaust treatment device, its characterized in that: the GPF detection device comprises a barrel (10) containing GPF, wherein a measuring port (111) is formed in the air inlet end and the air outlet end of the barrel (10) respectively, one end of a detection component (20) provided with a detection element (21) is fixedly connected with the measuring port (111), and the other end of the detection component is electrically connected with a signal processing device through a plug-in element (22).

2. The automobile exhaust gas treatment device according to claim 1, characterized in that: the cylinder (10) comprises a planar measuring table (11), a ring-shaped connecting base (112) is arranged at the outer opening edge of a measuring opening (111) in the measuring table (11), and the detection assembly (20) comprises a shell (23) welded with the connecting base (112).

3. The automobile exhaust gas treatment device according to claim 2, characterized in that: the shell (23) is in a pipe column shape with one large pipe diameter end and the other small pipe diameter end, the detection element (21) is installed on the large pipe diameter section of the shell (23), and the core body (211) located at the front end of the detection element (21) extends forwards into the containing cavity of the cylinder body (10).

4. The automobile exhaust gas treatment device according to claim 3, characterized in that: the two measuring ports (111) are arranged adjacently in the circumferential direction of the cylinder (10), and the orifices of the two measuring ports (111) are arranged oppositely.

5. The automobile exhaust gas treatment device according to claim 3, characterized in that: the both ends of barrel (10) are gaseous introduction section (10a) and the gaseous section of drawing (10b) that is the frustum form for whole, gaseous introduction section (10a) and gaseous section of drawing (10b) are equipped with measuring station (11) respectively, gaseous introduction section (10a), gaseous section of drawing (10b) and measuring station (11) bench edge wall body that meets include interior concave part (12) and outer convex part (13), interior concave part (12) dodge casing (23) and meet with the bench edge that measuring station (11) is close to barrel (10) middle section, outer convex part (13) form dodge the cavity and hold core (211) and meet with the bench edge that measuring station (11) kept away from barrel (10) middle section.