Hall effect sensor assembly
First Claim
Patent Images
1. A Hall effect sensor assembly comprising:
- a Hall effect sensor;
an overmolded housing which is overmolded onto the Hall effect sensor; and
a magnet movably connected to the Hall effect sensor by a movable connection with the overmolded housing, wherein the movable connection restrains movement of the magnet to a path along and aligned with a Hall effect central sensing axis, and wherein the magnet is substantially prevented from tilting relative to the sensing axis, wherein the Hall effect sensor and the overmolded housing are adapted to be connected as a single subassembly to a flexible printed circuit at a substantially same time.
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Abstract
A Hall effect sensor assembly including a Hall effect sensor; an overmolded housing which is overmolded onto the Hall effect sensor; and a magnet movably connected to the Hall effect sensor by a movable connection with the overmolded housing. The movable connection restrains movement of the magnet to a path along and aligned with a Hall effect central sensing axis. The magnet is substantially prevented from tilting relative to the sensing axis.
53 Citations
25 Claims
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1. A Hall effect sensor assembly comprising:
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a Hall effect sensor;
an overmolded housing which is overmolded onto the Hall effect sensor; and
a magnet movably connected to the Hall effect sensor by a movable connection with the overmolded housing, wherein the movable connection restrains movement of the magnet to a path along and aligned with a Hall effect central sensing axis, and wherein the magnet is substantially prevented from tilting relative to the sensing axis, wherein the Hall effect sensor and the overmolded housing are adapted to be connected as a single subassembly to a flexible printed circuit at a substantially same time. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10)
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6. A Hall effect sensor assembly comprising:
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a Hall effect sensor;
an overmolded housing which is overmolded onto the Hall effect sensor; and
a magnet movably connected to the Hall effect sensor by a movable connection with the overmolded housing, wherein the movable connection restrains movement of the magnet to a path along and aligned with a Hall effect central sensing axis, and wherein the magnet is substantially prevented from tilting relative to the sensing axis, wherein the overmolded housing comprises a general tube section located above the Hall effect sensor, and wherein the general tube section of the overmolded housing comprises two opposing curved columns defining a magnet movement path therebetween, and wherein the opposing columns each comprise an alignment slot therein.
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11. A Hall effect sensor assembly comprising:
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a Hall effect sensor;
an overmolded housing which is overmolded onto the Hall effect sensor; and
a magnet movably connected to the Hall effect sensor by a movable connection with the overmolded housing, wherein the movable connection restrains movement of the magnet to a path along and aligned with a Hall effect central sensing axis, and wherein the magnet is substantially prevented from tilting relative to the sensing axis, wherein the overmolded housing comprises a general tube section located above the Hall effect sensor, and wherein the overmolded housing forms a first housing member, and the Hall effect sensor assembly further comprising a second housing member, wherein the magnet is fixedly connected to the second housing member, and wherein the second housing member is movably located in the general tube section of the overmolded housing. - View Dependent Claims (12, 13, 14)
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15. A Hall effect sensor assembly comprising:
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a Hall effect sensor;
an overmolded housing which is overmolded onto the Hall effect sensor; and
a magnet movably connected to the Hall effect sensor by a movable connection with the overmolded housing, wherein the movable connection restrains movement of the magnet to a path along and aligned with a Hall effect central sensing axis, and wherein the magnet is substantially prevented from tilting relative to the sensing axis, wherein the overmolded housing comprises a general tube section located above the Hall effect sensor, and wherein the Hall effect sensor comprises leads with distal ends having the overmolded housing thereon to fixedly connect the distal ends to the overmolded housing, wherein exposed middle sections of the leads do not have the overmolded housing thereon, wherein the exposed middle sections are adapted to be connected to connection terminals, and wherein the overmolded housing retains the exposed middle sections in a fixed orientation relative to each other and relative to the overmolded housing.
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16. A Hall effect sensor assembly comprising:
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a housing comprising a first housing member and a second housing member, wherein the second housing member is slideably connected to the first housing member along an axis;
a Hall effect sensor connected to the first member, wherein the first housing member comprises an overmolded housing member which is overmolded on the Hall effect sensor;
a permanent magnet connected to the second housing member; and
a spring connected between the first and second housing members to bias the permanent magnet and second housing member in a direction away from the Hall effect sensor, wherein the Hall effect sensor comprises electrical leads with distal ends having the overmolded housing member thereon to fixedly connect the distal ends to the overmolded housing member, wherein exposed middle sections of the leads do not have the overmolded housing member thereon, wherein the exposed middle sections are adapted to be connected to connection terminals, and wherein the overmolded housing member retains the exposed middle sections in a fixed orientation relative to each other and relative to the overmolded housing member. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method of assembling a Hall effect sensor assembly with a flexible printed circuit comprising steps of:
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overmolding a first housing member onto a Hall effect sensor; and
movably connecting a permanent magnet to the first housing member by a movable connection, wherein the movable connection comprises a spring biasing the permanent magnet away from the Hall effect sensor, wherein the movable connection limits movement of the permanent magnet to a fixed orientation relative to the Hall effect sensor along a Hall effect central sensing axis, and wherein the permanent magnet is substantially prevented from tilting relative to the Hall effect central sensing axis, connecting the first housing member and the Hall effect sensor at a substantially same time as a single subassembly unit to the flexible printed circuit. - View Dependent Claims (23)
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24. A method of assembling a Hall effect sensor assembly comprising steps of:
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overmolding a first housing member onto a Hall effect sensor; and
movably connecting a permanent magnet to the first housing member by a movable connection, wherein the movable connection comprises a spring biasing the permanent magnet away from the Hall effect sensor, wherein the movable connection limits movement of the permanent magnet to a fixed orientation relative to the Hall effect sensor along a Hall effect central sensing axis, and wherein the permanent magnet is substantially prevented from tilting relative to the Hall effect central sensing axis, wherein the step of overmolding the first housing member onto the Hall effect sensor comprises overmolding the first housing member onto distal ends of electrical leads of the Hall effect sensor and not overmolding the first housing member onto middle sections of the electrical leads. - View Dependent Claims (25)
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Specification