Intake pressure sensor of motorcycle

Abstract

The invention discloses an intake pressure sensor of a motorcycle, The intake pressure sensor comprises a housing and a cover plate. An object placing cavity with an opened upper end is formed at the housing; and an intake connecting end is arranged at the lower end of the object placing cavity and an inlet hole communicated with the bottom of the object placing cavity is formed in the intake connecting end. The cover plate is arranged at the opening formed in the top of the object placing cavity in a closable and cooperative mode; a baffle plate arranged in a loop mode is formed in the object placing cavity, wherein the baffle plate and the side wall of the object placing cavity are arranged at an equal interval; and a sealed groove is formed between the baffle plate and the side wall of the object placing cavity. The edge of the cover plate extends towards one side to form a protruding edge corresponding to the sealed groove; the protruding edge is inserted into the sealed groove completely; a gap is formed between the end portion of the protruding edge and the bottom of the sealed groove and is filled with an adhesive; and the housing and the cover plate are fixedly connected by the adhesive. According to the invention, the intake pressure sensor has the following advantages: the usage amount of the adhesive can be controlled conveniently; the structure is simple; the assembling efficiency is improved well; the cost is low; the sealing performance of the sensor can be guaranteed; and the measuring precision and reliability are enhanced.

Description

technical field [0001] The invention relates to a motorcycle sensor, in particular to a motorcycle intake pressure sensor. Background technique [0002] Intake Manifold Absolute Pressure Sensor (MAPS for short) is a sensor that indirectly measures the intake air volume of the engine. It is suitable for motorcycles that use electronically controlled gasoline injection systems (EFI for short). On the throttle assembly of the channel, it is used to sense the negative air pressure formed when the engine cylinder is inhaled each time. [0003] Most of the existing MAPS uses the air pressure sensor chip based on semiconductor integration technology as the core air pressure detection component, and the shell and the cover plate are assembled to form a cavity, and the circuit board with the air pressure sensor chip is accommodated in the cavity; the bottom of the shell has An air intake hole is used to introduce the pressure of the intake manifold; one side of the housing has a slo...

AI Technical Summary

Problems solved by technology

[0004] In the existing air intake pressure sensor, glue (adhesive) is used to bond the shell and the cover plate. When workers apply glue, once the glue is uneven or the amount of glue is too small, it is easy to break after long-term use. Cause air leakage, which affects the measurement accuracy and reduces the reliability of the intake pressure sensor

In addition, the pin and the housing are integrally molded by injection molding. The shape of the pin is usually a simple straight line or L-shape. When the plug is plugged and pulled out, the pin is likely to shake or shift, resulting in air leakage; resulting in low measurement accuracy. , low reliability

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