A flat type oxygen sensor for motorcycle

Abstract

The invention relates to a planar oxygen sensor for a motorcycle. The planar oxygen sensor comprises a protective sleeve, a protective tube, a base, a chip, a terminal chuck base, a plurality of electrode terminals, an insulating bushing, a sealing element, a sealing plug and a lead, wherein the protective tube and the protective sleeve are respectively connected to two ends of the stainless steel base, inner cavities of the protective tube, the protective sleeve and the stainless steel base are communicated to form a columnar cavity which is opened at one end, and the cavity corresponding to one end of the protective tube is an air inlet cavity; the opened end of the cavity is plugged by the sealing plug; the terminal chuck base, the insulating bushing and the sealing element are arranged in the cavity in parallel; the plurality of electrode terminals are placed in the cavity; the insulating bushing and the sealing element are threaded by the chip; electrodes at one end of the chip are connected with the corresponding electrode terminals, and the other end of the chip is arranged in the air inlet cavity; and one end of the lead is connected with the electrode terminals after passing through the sealing plug. The planar oxygen sensor has the advantages of simple structure, convenience for manufacturing, high finished product rate, low manufacturing cost and long service life.

Description

technical field [0001] The invention relates to a plate-type oxygen sensor, and particularly designs a plate-type oxygen sensor for motorcycles. Background technique [0002] Motor vehicle emission regulations are becoming increasingly stringent, so the closed-loop control EFI system will become the mainstream. Oxygen sensor is an essential component of modern closed-loop feedback EFI motorcycles. From the research results of ECU monitoring engine mixture air-fuel ratio always converges to the theoretical air-fuel ratio, it can be known that the performance of oxygen sensor has a great impact on engine exhaust. emissions play an important role. [0003] At present, most motorcycle oxygen sensors on the market are produced by German Bosch models and American Delphi models. German Bosch models, these motorcycle oxygen sensors have the following shortcomings: [0004] 1) The structure is complex, the assembly is difficult, and it is difficult to realize automatic assembly; 2)...

AI Technical Summary

Problems solved by technology

[0004] 1) The structure is complex, the assembly is difficult, and it is difficult to realize automatic assembly; 2) The manufacturing process is difficult and the yield is low. For example, the chip assembly process involves stainless steel base flanging, which is easy to damage the chip and cause waste products; 3) There are many processes, such as , After the electrode terminal is assembled into the terminal holder, a process of fixing the fixed pin of the electrode terminal with a tool is required; 4) The manufacturing equipment requires high precision, difficult maintenance, and large investment

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