CN214366338U

CN214366338U - Nitrogen oxygen sensor ECU mounting bracket and SCR system

Info

Publication number: CN214366338U
Application number: CN202022783826.3U
Authority: CN
Inventors: 李恩志; 卞增涛; 李俊普; 李昭阳
Original assignee: Weichai Power Co Ltd; Weichai Power Emission Solutions Technology Co Ltd
Current assignee: Weichai Power Co Ltd; Weichai Power Emission Solutions Technology Co Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-10-08
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a nitrogen oxygen sensor ECU mounting bracket, including fender bracket and fixed bolster, still including the transition support, be provided with connecting portion on the fender bracket, first type nitrogen oxygen sensor ECU can connect on the fender bracket through connecting portion, and second type nitrogen oxygen sensor ECU can install on the transition support, and the transition support can connect on the fender bracket through connecting portion. The utility model discloses in, can directly pass through connecting portion with first type nitrogen oxygen sensor ECU and connect on the fender bracket, need not the transition support this moment. For the second type nitrogen oxygen sensor ECU, the second type nitrogen oxygen sensor ECU can be firstly installed and fixed on the transition support, and then the transition support is connected to the protection frame. The utility model provides a nitrogen oxygen sensor ECU mounting bracket has the compatibility, accords with the modularization principle, does benefit to the diffusion development of product. The utility model also discloses a SCR system.

Description

Nitrogen oxygen sensor ECU mounting bracket and SCR system

Technical Field

The utility model relates to a SCR technical field, more specifically say, relate to a nitrogen oxygen sensor ECU mounting bracket and SCR system.

Background

Scr (selective Catalytic reduction) is a selective Catalytic reduction technology, which is a technology for eliminating nitrogen oxides (NOx) in diesel engine exhaust. In this technique, ammonia (NH3) produced by hydrolysis of urea is used to convert nitrogen oxides (NOx) in exhaust gas to nitrogen (N2) over a catalyst. The nitrogen-oxygen sensor comprises a nitrogen-oxygen sensor ECU and a nitrogen-oxygen sensor probe. The nitrogen-oxygen sensor probe is installed on the post-processing tail pipe, and the nitrogen-oxygen sensor ECU is installed on the nitrogen-oxygen sensor ECU installation frame.

In the prior art, the structure of the nitrogen oxygen sensor ECU mounting frame is as shown in fig. 1, and mainly includes: the protective frame 100, the heat insulation cotton 300 and the fixing bracket 400. First bolt holes 200 are formed in two opposite corners of the protective frame 100, and the first bolt holes 200 are used for connecting the nitrogen oxygen sensor ECU. The heat insulation cotton 300 is located between the protection frame 100 and the fixing frame 400 and used for blocking heat at the fixing frame 400 from being transferred to the protection frame 100.

Since the first type of nox sensor ECU is provided with the second bolt hole that matches the first bolt hole 200 of the protector 100, and the second type of nox sensor ECU is not provided with the corresponding second bolt hole, the protector in fig. 1 is only suitable for the first type of nox sensor ECU, but not for the second type of nox sensor ECU. Therefore, the nitrogen oxygen sensor ECU mounting frame in the attached drawing 1 has no compatibility, is not in accordance with the modularization principle, and is not beneficial to the diffusion development of products.

SUMMERY OF THE UTILITY MODEL

The utility model aims at improving the compatibility of nitrogen oxygen sensor ECU mounting bracket, making it accord with the modularization principle to do benefit to the diffusion development of product. In order to realize the purpose, the following technical scheme is provided:

the utility model provides a nitrogen oxygen sensor ECU mounting bracket, includes fender bracket and fixed bolster, still includes the transition support, be provided with connecting portion on the fender bracket, first type nitrogen oxygen sensor ECU can pass through connecting portion connect on the fender bracket, second type nitrogen oxygen sensor ECU can install on the transition support, just the transition support can pass through connecting portion connect on the fender bracket.

Preferably, the connecting portion are first bolt holes, and the transition support and the first type of nitrogen oxygen sensor ECU are both provided with second bolt holes matched with the first bolt holes for use.

Preferably, the first bolt holes are located at the bottom of the fender bracket and are arranged diagonally.

Preferably, the transition support comprises a plate-shaped transition support body, and a clip for clamping the second type of nitrogen-oxygen sensor ECU is arranged on the transition support body.

Preferably, the number of the clips is four, and the four clips are arranged according to the profile of the second type of the nitrogen oxygen sensor ECU.

Preferably, the transition support body is further provided with a positioning part for positioning the second type nitrogen oxygen sensor ECU.

Preferably, the positioning portion comprises two convex columns arranged side by side and a convex block, and the convex columns and the convex block are respectively matched with a first concave portion and a second concave portion on the second type nitrogen-oxygen sensor ECU.

Preferably, the transition support still includes the ear, the ear is two, two the ear is established respectively on the diagonal angle of transition support body, be provided with on the ear the second bolt hole.

Preferably, the protection frame comprises a top plate, a side plate and a bottom plate, and the first bolt hole is formed in the bottom plate.

Preferably, the corners of the protection frame are rounded corners.

Preferably, the bottom plate is a steel plate, and the thickness of the bottom plate is 1-1.4 mm.

Preferably, the top plate and the side plate are both provided with through holes, and the through holes can dissipate heat.

Preferably, heat insulation cotton is further arranged between the protection frame and the fixing support.

Preferably, the fixed support comprises a support plate for supporting the protection frame and support legs for supporting the support plate, and the bottoms of the support legs are connected to the SCR box body.

The utility model also provides a SCR system, including nitrogen oxygen sensor ECU mounting bracket, nitrogen oxygen sensor ECU mounting bracket is above-mentioned arbitrary nitrogen oxygen sensor ECU mounting bracket.

According to the above technical scheme, the utility model discloses in, can directly pass through connecting portion with first type nitrogen oxygen sensor ECU and connect on the fender bracket, need not the transition support this moment. For the second type of nitrogen oxygen sensor ECU, namely the type of sensor which cannot be directly connected to the protection frame through the connecting part, the second type of nitrogen oxygen sensor ECU can be firstly installed and fixed on the transition support, and then the transition support is connected to the protection frame. The utility model provides a nitrogen oxygen sensor ECU mounting bracket not only is applicable to the installation of first type nitrogen oxygen sensor ECU, but also is applicable to the installation of second type nitrogen oxygen sensor ECU, consequently the utility model provides a nitrogen oxygen sensor ECU mounting bracket has the compatibility, accords with the modularization principle, does benefit to the diffusion development of product.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive efforts.

FIG. 1 is an exploded view of a nitrogen oxygen sensor ECU mounting bracket according to one embodiment of the prior art;

fig. 2 is an exploded view of an ECU mount according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a protection frame according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a transition support according to an embodiment of the present invention.

Wherein 100 is a protective frame, 200 is a first bolt, 300 is heat insulation cotton, and 400 is a fixed support;

1 is the fender bracket, 2 is the transition support, 3 is thermal-insulated cotton, 4 is the fixed bolster, 5 is the roof, 6 is the curb plate, 7 is the bottom plate, 8 is first bolt hole, 9 is the transition support body, 10 is the checkpost, 11 is the ear, 12 is the projection, 13 is the lug, 14 is the second bolt hole.

Detailed Description

The utility model discloses a nitrogen oxygen sensor ECU mounting bracket, this nitrogen oxygen sensor ECU mounting bracket have compatibly, accord with the modularization principle, do benefit to the diffusion development of product. The utility model also discloses a SCR system.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 2, the nitrogen oxygen sensor ECU mounting bracket of the present invention includes a protection bracket 1 and a fixing bracket 4. The fixed bracket 4 is used for supporting the protection frame 1. The protective frame 1 covers the nitrogen oxygen sensor and is used for protecting the nitrogen oxygen sensor ECU. The protective frame 1 is provided with a connecting part. The first type of nitrogen-oxygen sensor ECU can be connected to the protection frame 1 through the connection portion.

The utility model provides a nitrogen oxygen sensor ECU mounting bracket still includes transition support 2. The second type of nitrogen-oxygen sensor ECU, i.e., the type of nitrogen-oxygen sensor ECU that cannot be connected to the protection bracket 1 through the connection portion, may be indirectly connected to the protection bracket 1 through the transition bracket 2. The specific connection mode is as follows: firstly, the second type nitrogen-oxygen sensor ECU is fixedly installed on the transition support 2, and then the transition support 2 is connected to the protection frame 1 through the connecting part.

The utility model discloses in, can directly pass through connecting portion with first type nitrogen oxygen sensor ECU and connect on fender bracket 1, need not transition support 2 this moment. For the second type of nitrogen-oxygen sensor ECU, that is, the first type of sensor ECU which cannot be directly connected to the protection frame 1 through the connection portion, the second type of nitrogen-oxygen sensor ECU may be first installed and fixed on the transition support 2, and then the transition support 2 is connected to the protection frame 1. The utility model provides a nitrogen oxygen sensor ECU mounting bracket not only is applicable to the installation of first type nitrogen oxygen sensor ECU, but also is applicable to the installation of second type nitrogen oxygen sensor ECU, consequently the utility model provides a nitrogen oxygen sensor ECU mounting bracket has the compatibility, accords with the modularization principle, does benefit to the diffusion development of product.

In an embodiment of the invention, the connection portion on the fender bracket 1 is defined as a first bolt hole 8. Correspondingly, the transition bracket 2 and the first type nox sensor ECU are provided with second bolt holes 14 for cooperating with the first bolt holes 8. Bolts extend through the first bolt holes 8 and the second bolt holes 14 to lock the transition bracket 2 or the first type nox sensor ECU to the protective bracket 1.

And in order to ensure the fastness and the stability of installation, the utility model discloses a specific embodiment is specially set up first bolt hole 8 on fender bracket 1 into two, and two first bolt holes 8 become diagonal angle setting in the bottom of fender bracket 1. Correspondingly, the transition bracket 2 and the first type nox sensor ECU are each provided with two second bolt holes 14 arranged diagonally.

Referring to fig. 4, the transition support 2 will be described in detail as follows: the transition support 2 comprises a transition support body 9 and outwardly projecting ears 11. The transition support body 9 is plate-shaped, a clip 10 is arranged on the plate-shaped transition support body 9, and the clip 10 is used for clamping the second type nitrogen oxygen sensor ECU. Specifically, the clips 10 are provided in four. In addition, four clips 10 are arranged in a square shape according to the outline of the second type oxynitride sensor ECU. When installing second type nitrogen oxygen sensor ECU, overcome the elasticity of checkpost 10, make checkpost 10 turn up to make second type nitrogen oxygen sensor ECU enter into the space that four checkposts 10 enclose, later checkpost 10 is inwards shrunk, thereby with the chucking of second type nitrogen oxygen sensor ECU.

It should be noted that the number of the clips 10 may be set according to the specific shape and size of the second type nox sensor ECU. The number of the clips 10 is not particularly limited, and the clips are within the scope of the present invention as long as the clips can clamp the second type of nox sensor ECU.

It should be further noted that the present invention adopts a clamping manner to fix the second type oxynitride sensor ECU on the transition bracket 2. In addition to this, it can also be fixed to the transition support 2 by means of lashing or the like. The fixing manner of the second type nox sensor ECU to the transition bracket 2 is not specifically limited, and the second type nox sensor ECU and the transition bracket 2 can be connected with each other, which falls within the protection scope of the present disclosure.

Additionally, the utility model discloses still set up location portion on transition support body 9. The positioning part specifically comprises two convex columns 12 and a convex block 13. The convex column 12 is matched with a first concave part on the second type nitrogen-oxygen sensor ECU, and the convex block 13 is matched with a second concave part on the second type nitrogen-oxygen sensor ECU. The arrangement of the convex column 12 and the convex block 13 not only facilitates the accurate installation of the second type nitrogen-oxygen sensor ECU, but also further improves the stability of the second type nitrogen-oxygen sensor ECU.

The positioning portion of the transition bracket body 9 is not particularly limited, and may be provided according to a specific nox sensor ECU. Any positioning part provided for positioning purposes, regardless of the specific form thereof, falls within the scope of protection of the present document.

The ears 11 extend outwardly relative to the transition support body 9. The number of the ears 11 is two, and the two ears 11 are respectively arranged on the opposite corners of the transition support body 9. The ear 11 is provided with a second bolt hole 14.

Referring to fig. 3, the structure of the protection frame 1 will be described in detail as follows: the protective frame 1 includes a top plate 5, side plates 6, and a bottom plate 7. The first bolt hole 8 is provided in the bottom plate 7. The top plate 5, the side plates 6 and the bottom plate 7 enclose a housing structure, and the first type nitrogen-oxygen sensor ECU or the second type nitrogen-oxygen sensor ECU is housed inside the housing structure. The wiring harness led out from the first type nitrogen oxygen sensor ECU or the second type nitrogen oxygen sensor ECU can be fastened on the side plate 6 or the bottom plate 7 of the protection frame 1, so that the wiring harness can be prevented from being pulled, and the wiring harness can be prevented from being attached to an SCR box body and being baked at high temperature.

The utility model limits the material of the bottom plate 7 into a steel plate, and the thickness of the bottom plate 7 is between 1-1.4 mm. Thus, the bottom plate 7 can provide a heat insulating effect.

In an embodiment of the present invention, the protection frame 1 is made by bending. The specific method comprises the following steps: the side plate 6 is bent from the side of the top plate 5, and the bottom plate 7 is bent from the side of the side plate 6. Because there are two side plates 6, the first bottom plate and the second bottom plate can be respectively bent from the side portions of the two side plates 6. The first and second base plates constitute the base plate 7 of the protective frame 1.

In addition, the utility model provides a bight of fender bracket 1 is fillet portion, so can avoid the pencil to be cut open, wearing and tearing effectively.

In order to facilitate the heat dissipation of first type nitrogen oxygen sensor ECU and second type nitrogen oxygen sensor ECU, the utility model discloses set up the through-hole on roof 5 and curb plate 6 of protection frame 1, this through-hole is used for the heat dissipation. In addition, the arrangement of the through hole is also beneficial to the operation and arrangement of the wire harness.

In order to further avoid the heat transfer of SCR box to fender bracket 1 on to cause the influence to first type nitrogen oxygen sensor ECU and second type nitrogen oxygen sensor ECU, the utility model discloses add thermal-insulated cotton 3, thermal-insulated cotton 3 is located between fender bracket 1 and fixed bolster 4.

The utility model provides a fixed bolster 4 includes backup pad and supporting leg, and the supporting leg is used for the backup pad, and the backup pad is used for supporting fender bracket 1. The bottom of supporting leg is connected on the SCR box. The supporting legs enable a certain distance to be reserved between the supporting plate and the SCR box body, and therefore heat dissipation of the SCR box body is facilitated. The height of the support legs is preferably between 40 and 60 mm.

It should be noted that, in the present invention, the protection frame 1 is locked to the fixing frame 4 by bolts.

The utility model also discloses a SCR system, including nitrogen oxygen sensor ECU mounting bracket, especially, this nitrogen oxygen sensor ECU mounting bracket is above-mentioned arbitrary nitrogen oxygen sensor ECU mounting bracket, and above-mentioned nitrogen oxygen sensor ECU mounting bracket has above-mentioned effect, and the SCR system that has above-mentioned nitrogen oxygen sensor ECU mounting bracket has above-mentioned effect equally, so this paper is no longer repeated.

Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a nitrogen oxygen sensor ECU mounting bracket, includes fender bracket and fixed bolster, its characterized in that still includes the transition support, be provided with connecting portion on the fender bracket, first kind nitrogen oxygen sensor ECU can pass through connecting portion connect on the fender bracket, second kind nitrogen oxygen sensor ECU can install on the transition support, just the transition support can pass through connecting portion connect on the fender bracket.

2. The ECU mounting bracket of claim 1, wherein the connecting portion is a first bolt hole, and the transition bracket and the first type of ECU are provided with a second bolt hole matched with the first bolt hole.

3. The nitrogen oxygen sensor ECU mounting bracket of claim 2, wherein the first bolt hole is located at a bottom of the fender bracket and is diagonally arranged.

4. The mounting bracket for the ECU of claim 2, wherein the transition bracket comprises a plate-shaped transition bracket body, and a clip for clamping the second type of ECU is arranged on the transition bracket body.

5. The NOx sensor ECU mounting bracket of claim 4, wherein the number of said clips is four, and four of said clips are arranged in accordance with a contour of the second type NOx sensor ECU.

6. The nitrogen oxygen sensor ECU mounting bracket of claim 4, wherein the transition bracket body is further provided with a positioning part for positioning the second type of nitrogen oxygen sensor ECU.

7. The mounting bracket for an ECU (electronic control Unit) of claim 6, wherein the positioning part comprises two convex columns arranged side by side and a convex block, and the convex columns and the convex block are respectively matched with a first concave part and a second concave part on the ECU of the second type.

8. The nitrogen oxygen sensor ECU mounting bracket of claim 4, wherein the transition bracket further comprises two ears, the two ears are respectively arranged on opposite corners of the transition bracket body, and the second bolt holes are arranged on the ears.

9. The nitrogen oxygen sensor ECU mounting bracket of claim 2, wherein the protective bracket comprises a top plate, a side plate and a bottom plate, and the first bolt hole is provided on the bottom plate.

10. The nox sensor ECU mount of claim 9, wherein the corners of the cage are rounded.

11. The nitrogen oxygen sensor ECU mounting bracket of claim 9, wherein the base plate is a steel plate and the thickness of the base plate is 1-1.4 mm.

12. The ECU mounting bracket of claim 9, wherein the top plate and the side plate are provided with through holes, and the through holes can dissipate heat.

13. The nitrogen oxygen sensor ECU mounting bracket of claim 1, wherein thermal insulation cotton is further arranged between the protective bracket and the fixed bracket.

14. The nitrogen oxygen sensor ECU mounting bracket of claim 1, wherein the fixing bracket comprises a support plate for supporting the protective bracket, and further comprises support legs for supporting the support plate, and bottoms of the support legs are connected to an SCR box body.

15. An SCR system comprising a nox sensor ECU mount, wherein the nox sensor ECU mount is a nox sensor ECU mount according to any one of claims 1 to 14.