초록 ▼

A bobbin 7 around which a solenoid 6 is wound is connected to an electronic control unit 1 fixed to a base plate portion 3c through a connection terminal 11 penetrating a connection hole 2 and a guide hole 4 whose one end portion is fixed to a bobbin 7 and is connected to an end portion of a solenoi

A bobbin 7 around which a solenoid 6 is wound is connected to an electronic control unit 1 fixed to a base plate portion 3c through a connection terminal 11 penetrating a connection hole 2 and a guide hole 4 whose one end portion is fixed to a bobbin 7 and is connected to an end portion of a solenoid 6 and other end portion is connected to the connection hole 2, a hook portion 3d is engaged into a hole 10b so that a yoke 8 is supported, an electromagnetic-force generating portion 5 is assembled to a casing 3, gaps 18 and 21 are formed between the yoke 8 and the bobbin 7 so that the yoke 8 is made to be movable with respect to the bobbin 7 in the axial direction of the sleeve 13 and also in a direction perpendicular to the axial direction of the sleeve 13. When the casing 3 and the valve housing 14 are assembled, the sleeve 13 is smoothly inserted into the electromagnetic-force generating portion 5, and the yoke 8 is pressed and urged to the valve housing 14 by a ring spring 12.

대표청구항 ▼

[ What is claimed is:] [1.] A pressure control apparatus comprising:an electronic control unit;an electromagnetic-force generating portion including a solenoid electrically connected to said electronic control unit, a bobbin around which said solenoid is wound and a yoke surrounding at least two end

[ What is claimed is:] [1.] A pressure control apparatus comprising:an electronic control unit;an electromagnetic-force generating portion including a solenoid electrically connected to said electronic control unit, a bobbin around which said solenoid is wound and a yoke surrounding at least two ends of said bobbin and a surface of said bobbin around which said solenoid is wound and forming a magnetic flux passage;a valve housing having a sleeve which is inserted into said yoke and said bobbin, and said sleeve accommodating a movable plunger which is operated when electric power is supplied to said solenoid; anda casing secured to said valve housing and covering said electronic control unit, said electromagnetic-force generating portion and said sleeve;wherein said casing has a base plate portion extending an entire width of said casing and dividing an inner portion of said casing into a chamber in which said electronic control unit is disposed and a chamber in which said electromagnetic-force generating portion is disposed and to which said electronic control unit is secured to an end thereof, said base plate portion comprising a holding portion directly supporting said yoke, said bobbin has a connection terminal to which an end of said wound solenoid is connected and which is mode of conductive metal, said electronic control unit and said electromagnetic-force generating portion are electrically connected to each other by at least said connection terminal, and a transition permission portion is provided between the portion of said yoke and that of said bobbin opposite to each other in an axial direction of said sleeve so that said yoke is movable with respect to said bobbin in the axial direction of said sleeve; and an urging member for urging said yoke toward said valve housing.