Electronic throttle valve output shaft assembly and manufacturing method

Abstract

The invention discloses an electronic throttle valve output shaft assembly and a manufacturing method, and relates to the field of automobile components. The electronic throttle valve output shaft assembly comprises a sector gear and a metal shaft. A magnet defined by a clamping jaw structure and fixed to the sector gear is arranged on the sector gear. The metal shaft is perpendicular to the planewhere the sector gear is located, and the top end of the metal shaft is embedded to the face, deviating from the magnet, of the sector gear. A first limiting component, a second limiting component and an annular groove are arranged on the metal shaft. The first limiting component is arranged at the top end of the metal shaft and is provided with a cylindrical face cut edge used for limiting relative rotation of the metal shaft and the sector gear. The second limiting component is arranged below the first limiting component of the metal shaft. The annular groove is arranged below the second limiting component of the metal shaft. The center of the magnet coincides with the axis of the metal shaft. The metal shaft, the sector gear, the magnet and the clamping jaw structure are subjected to integral injection molding. The electronic throttle valve output shaft assembly has the following beneficial effects that the structure is simple; one-time injection molding is achieved; the manufacturing process is simple; subsequent mounting procedures are not needed; and connecting between the metal shaft, the sector gear and the magnet is firm.

Description

technical field [0001] The invention relates to automobile parts, in particular to an electronic throttle output shaft assembly and a manufacturing method. Background technique [0002] The throttle is a controllable valve that controls air entering the engine. It is connected to the air filter on the top and the engine block on the bottom. It is called the throat of the car engine. Today's advanced gasoline engines and diesel engine systems all contain a throttle structure, which is mainly used to achieve precise control of the intake air volume of the engine. There are two kinds of throttle valves: traditional pull-wire type and electronic throttle valve. The electronic throttle valve mainly controls the opening angle of the throttle valve according to the energy required by the engine through the throttle valve position sensor, thereby adjusting the size of the intake air. The current throttle products all contain the basic transmission device composed of metal shaft, se...

AI Technical Summary

Problems solved by technology

[0003] In the existing products, the metal shaft and the sector gear are connected together by laser welding. This connection method has high investment costs and high requirements on the welding process, which will greatly reduce production efficiency; in the existing products, the magnet and the sector gear The space is fixed by hot riveting. The magnet needs to be packaged into a plastic structure first, and then hot riveted to the sector gear. There are many procedures and complicated production efficiency. Or paste the magnet glue on the sector gear, but the paste efficiency is low. Moreover, the glue may be degummed, which may easily lead to unstable product performance.

Images