公开(公告)号：US20140360261A1

公开(公告)日：2014-12-11

申请号：US14470034

申请日：2014-08-27

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Takeshi MORINO ,  Chihiro KOBAYASHI ,  Yuki OKAMOTO ,  Tsutomu KONO

IPC: G01F1/684 ,  G01F5/00

CPC classification number: G01F1/6842 ,  G01F1/69 ,  G01F5/00

Abstract: A thermal type air flow meter that is capable of suppressing deformation of a base member at the time of molding is disclosed, to thereby secure dimension accuracy and reduce an influence of a dimension change on measuring accuracy. The meter includes a housing member placed in an intake passage of an internal combustion engine, and a base member fixed to the housing member and includes a secondary air passage into which part of air passing through the intake passage flows. The base member is a plate-like resin molded component formed of a synthetic resin material and includes a reinforcing structure integrally formed between a board fixing part to which a circuit board is fixed; and a secondary passage constituting part formed at a leading end part of the board fixing part, the reinforcing structure enhancing strength of the base member.

Abstract translation: 公开了一种能够抑制成型时基体的变形的热式空气流量计，从而确保尺寸精度并减小尺寸变化对测量精度的影响。 仪表包括放置在内燃机的进气通道中的壳体构件和固定到壳体构件的基座构件，并且包括二次空气通道，通过进气通道的空气的一部分流动。 基座部件是由合成树脂材料形成的板状树脂模制部件，并且包括一体地形成在固定电路板的板固定部件之间的加强结构; 以及形成在所述板固定部的前端部的副通路构成部，所述加强结构提高所述基体的强度。

公开(公告)号：US20170328752A1

公开(公告)日：2017-11-16

申请号：US15667126

申请日：2017-08-02

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Takeshi MORINO ,  Chihiro KOBAYASHI ,  Yuki OKAMOTO ,  Tsutomu KONO

IPC: G01F1/684 ,  G01F5/00 ,  G01F1/69

CPC classification number: G01F1/6842 ,  G01F1/69 ,  G01F5/00

Abstract: A thermal type air flow meter that is capable of suppressing deformation of a base member at the time of molding is disclosed, to thereby secure dimension accuracy and reduce an influence of a dimension change on measuring accuracy. The meter includes a housing member placed in an intake passage of an internal combustion engine, and a base member fixed to the housing member and includes a secondary air passage into which part of air passing through the intake passage flows. The base member is a plate-like resin molded component formed of a synthetic resin material and includes a reinforcing structure integrally formed between a board fixing part to which a circuit board is fixed; and a secondary passage constituting part formed at a leading end part of the board fixing part, the reinforcing structure enhancing strength of the base member.