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US 8,264,312 B2Granted
Linear solenoid
AssigneeDenso Corporation
InventorsYasuhiro Hamaoka, Yoshiyuki Murao
Life of this patent
Estimating the term…
Abstract
A linear solenoid includes a shaft to reciprocate in an axis direction, a movable member fixed to the shaft, a front stator, a rear stator, a coil, a front housing, and a rear housing. The front housing is made of metal, and covers the front stator and the coil in the axis direction. The rear housing is made of metal, and is connected to the front housing so as to define a space to accommodate the movable member, the front stator, the rear stator and the coil. The rear housing covers the rear stator and the coil in the axis direction.
Claims15
A linear solenoid comprising:
- a shaft;
- a movable member fixed on a middle of the shaft in an axis direction;
- a front stator having a first hole to support a front end portion of the shaft to reciprocate in the axis direction;
- a rear stator having a second hole to support a rear end portion of the shaft to reciprocate in the axis direction;
- a coil having an approximately cylindrical shape, the coil being located outside of the front stator and the rear stator in a radial direction, the coil generating magnetic force by being supplied with electricity so as to attract the movable member and the shaft toward the front stator;
- a front housing made of metal, the front housing having a hole in which the front end portion of the shaft passes, the front housing covering front side of the front stator and the coil in the axis direction;
- and
- a rear housing made of metal, the rear housing having an outer periphery connected to an outer periphery of the front housing so as to define a space to accommodate the movable member, the front stator, the rear stator and the coil, the rear housing covering rear side of the rear stator and the coil in the axis direction, wherein
- an outer periphery of the front housing has first nails projected outward in the radial direction, and
- the front housing is swaged to an outer periphery of the rear housing by bending the first nails toward the rear housing.
7 more elements
A linear solenoid comprising:
- a shaft;
- a movable member fixed on a middle of the shaft in an axis direction;
- a front stator having a first hole to support a front end portion of the shaft to reciprocate in the axis direction;
- a rear stator having a second hole to support a rear end portion of the shaft to reciprocate in the axis direction;
- a coil having an approximately cylindrical shape, the coil being located outside of the front stator and the rear stator in a radial direction, the coil generating magnetic force by being supplied with electricity so as to attract the movable member and the shaft toward the front stator;
- a front housing made of metal, the front housing having a hole in which the front end portion of the shaft passes, the front housing covering front side of the front stator and the coil in the axis direction;
- and
- a rear housing made of metal, the rear housing having an outer periphery connected to an outer periphery of the front housing so as to define a space to accommodate the movable member, the front stator, the rear stator and the coil, the rear housing covering rear side of the rear stator and the coil in the axis direction, wherein
- an outer periphery of the rear housing has second nails projected outward in the radial direction, and
- the rear housing is swaged to an outer periphery of the front housing by bending the second nails toward the front housing.
7 more elements
Dependencies are inferred from the claim text.