CN204646377U

CN204646377U - The mounting structure of a kind of lambda sensor base and catalyst converter

Info

Publication number: CN204646377U
Application number: CN201520193675.2U
Authority: CN
Inventors: 郑姗姗; 毛爽
Original assignee: KATCON (SHANGHAI) EXHAUST CONTROL SYSTEM CO Ltd
Current assignee: KATCON (SHANGHAI) EXHAUST CONTROL SYSTEM CO Ltd
Priority date: 2015-04-01
Filing date: 2015-04-01
Publication date: 2015-09-16
Anticipated expiration: 2025-04-01

Abstract

The utility model discloses the mounting structure of a kind of lambda sensor base and catalyst converter, comprise lambda sensor base and catalyst converter, catalyst converter comprises the metal shell that inside is filled with catalyzer, it is characterized in that, the base of described lambda sensor is located on catalyst converter shell, lambda sensor is located on lambda sensor base, and metal shell is provided with hole, and this hole makes the catalyzer in catalyst converter shell be communicated with lambda sensor base.The utility model provides a kind of cost and has superiority and the catalyst structure improving lambda sensor Effect on Detecting.The utility model has the advantages that: improve service behaviour, reduce the design difficulty of catalyst converter correlated parts, the Design and manufacture cost of the catalyst converter of reduction.

Description

The mounting structure of a kind of lambda sensor base and catalyst converter

Technical field

The utility model relates to the mounting structure of a kind of lambda sensor base and catalyst converter.

Background technique

Lambda sensor 1 is arranged on manifold 2 as shown in Figure 1, or lambda sensor 1 is arranged on the pipe 4 in the middle of manifold 2 and catalyst converter 3, or lambda sensor 1 is arranged on the end cone 3-1 of catalyst converter 3, the lambda sensor base layout of existing automobile catalytic device is generally at manifold, catalyst converter end is bored on upper or outlet pipe, there is certain defect in this structure, due to the raising of exhaust emission standard, the limitation of the spatial position of catalyst design, the raising of the detection degree requirement of lambda sensor simultaneously, the layout of lambda sensor in vent systems and position limitation, the design of the end cone installing lambda sensor base is made to become increasingly complex and increase, add mould difficulty and manufacture cost.In order to improve the detectivity of lambda sensor and reduce the difficulty manufactured and designed, and change lambda sensor base be arranged on catalyst converter, as shown in Figure 2, lambda sensor 1 is arranged on the shell 3-2 in the middle of catalyst converter 3, service behaviour can be improved like this, reduce the design difficulty of correlated parts, improve performance with this and reduce costs.

Summary of the invention

To be solved in the utility model is that the mounting structure of existing lambda sensor base and catalyst converter is bored and the shape of pipe and position influence because of receiving end, the position passing sensor place is not often the position that air-flow reaches best uniform stream, then have impact on Effect on Detecting.

In order to solve the problem, the utility model provides the mounting structure of a kind of lambda sensor base and catalyst converter, comprise lambda sensor base and catalyst converter, catalyst converter comprises the metal shell that inside is filled with catalyzer, it is characterized in that, the base of described lambda sensor is located on catalyst converter shell, and lambda sensor is located on lambda sensor base, metal shell is provided with hole, and this hole makes the catalyzer in catalyst converter shell be communicated with lambda sensor base.

The utility model provides a kind of cost and has superiority and the catalyst structure improving lambda sensor Effect on Detecting.

The utility model has the advantages that: improve service behaviour, reduce the design difficulty of catalyst converter correlated parts, the Design and manufacture cost of the catalyst converter of reduction.

In order to improve the detectivity of lambda sensor, and change lambda sensor base be arranged on catalyst converter, such lambda sensor layout is in catalyzer position placed in the middle, can not can not reach best uniform stream position because of the impact of traditional design receiving end cone-shaped, avoid and bore and the design difficulty of pipe because the not good situation of the layout of end cone and pipe part reason and output and such layout have liberated end.Layout can reach best Effect on Detecting on body.

In addition, need layout in the position of uniform stream degree the best once not need to take into account lambda sensor, that holds the design of cone and pipe to become is simple, saves end cone and tube designs time and has been reduced to design difficulty, to this reduce cost.Change the layout of lambda sensor base simultaneously, end cone without slot milling oxygen supply sensing base, like this end cone length can shorten, i.e. accessory size shortening, reduces the difficulty that draws high to this reduce cost, reduces costs with this.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the mounting structure of existing lambda sensor in vent systems;

Fig. 2 is the schematic diagram of the mounting structure of a kind of lambda sensor base and catalyst converter;

The schematic diagram of the mounting structure of the lambda sensor base that Fig. 3 provides for the utility model and catalyst converter shell;

Fig. 4 is the plan view of Fig. 3;

Angle schematic diagram when Fig. 5 is sectional view and the lambda sensor installation in A-A face in Fig. 4

Fig. 6 is the sectional view of lambda sensor base mounting structure;

Embodiment

For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.

Embodiment

As in Figure 3-5, a kind of lambda sensor 1 base 5 provided for the utility model and the mounting structure of catalyst converter 3, comprise lambda sensor 1 base 5 and catalyst converter 3, catalyst converter 3 comprises the metal shell 3-2 that inside is filled with catalyzer 4, metal shell 3-2 holes, is drilled into catalyzer 4 part; After completing boring, the waste residue produced in clean boring procedure.

Then, lambda sensor 1 base 5 is welded on the hole of metal shell 3-2, with welding wire 6, metallized metal shell 3-2 and lambda sensor 1 base 5 is welded together.

Finally, be arranged on by lambda sensor 1 on lambda sensor 1 base 5, during installation, the setting angle between lambda sensor 1 with metal shell 3-2 requires it is vertical 90 ° as far as possible, and the angle between lambda sensor 1 and horizontal line is at least 10 °.

Claims

1. the mounting structure of a lambda sensor base and catalyst converter, comprise lambda sensor (1) base (5) and catalyst converter (3), catalyst converter comprises the metal shell (3-2) that inside is filled with catalyzer (4), it is characterized in that, the base (5) of described lambda sensor (1) is located on catalyst converter shell (3-2), lambda sensor (1) is located on lambda sensor (1) base (5), metal shell (3-2) is provided with hole, this hole makes the catalyzer (5) in catalyst converter shell (3-2) be communicated with lambda sensor base (2).