Flat electromagnetic relay
First Claim
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1. A flat electromagnetic relay comprising;
- a frame which includes a pair of circuit leads and a pair of energizing leads,the pair of circuit leads having respective ones of a pair of stationary contacts which are next to each other,an armature assembly which is pivotally mounted on the frame for movement between first and second operative positions,the armature assembly including a movable contact bar which bridges the pair of contacts in the first operative position and which is spaced from the pair of contacts in the second operative position,a coil assembly mounted on the frame and electrically connected to the pair of energizing leads,an electromagnetic frame comprising a core leg which is inside a coil of the coil assembly and a wing which is adjacent one end of the armature assembly,the coil assembly when energized positioning the armature assembly in one of the first and second operative positions, andspring means biasing the armature assembly in another of the first and second operative positions.
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Abstract
A flat electromagnetic relay comprises a lead frame having six stamped insert molded circuit leads, an armature frame pivotally supporting a balanced beam armature which carries two contact bars, a coil assembly and an electromagnetic frame having two diagonally arranged pole wings which are inside the armature frame adjacent opposite side ends of the armature. The armature is torsionally biased into a first operative position where the contact bar at one end shunts two circuit leads. When the coil is energized, the armature is pivoted to a second operative position where the contact bar at the other end shunts two other circuit leads.
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Citations
24 Claims
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1. A flat electromagnetic relay comprising;
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a frame which includes a pair of circuit leads and a pair of energizing leads, the pair of circuit leads having respective ones of a pair of stationary contacts which are next to each other, an armature assembly which is pivotally mounted on the frame for movement between first and second operative positions, the armature assembly including a movable contact bar which bridges the pair of contacts in the first operative position and which is spaced from the pair of contacts in the second operative position, a coil assembly mounted on the frame and electrically connected to the pair of energizing leads, an electromagnetic frame comprising a core leg which is inside a coil of the coil assembly and a wing which is adjacent one end of the armature assembly, the coil assembly when energized positioning the armature assembly in one of the first and second operative positions, and spring means biasing the armature assembly in another of the first and second operative positions. - View Dependent Claims (2)
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3. A flat electromagnetic relay comprising;
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a frame which includes a pair of circuit leads and a pair of energizing leads, the pair of circuit leads having respective ones of a pair of stationary contacts which are next to each other, an armature assembly which includes a support having side extensions which are secured to the frame and which include torsion webs which bias the armature assembly to a first operative position and which allow the armature assembly to pivot on the frame between the first operative position and a second operative position, a coil assembly mounted on the frame and electrically connected to the pair of energizing leads, an electromagnetic frame comprising a core leg which is inside a coil of the coil assembly and a wing which is disposed adjacent an end of the armature assembly, the coil assembly when energized positioning the armature assembly in the second operative position against the bias of the torsion webs, and the armature assembly further including a movable contact bar mounted on the support which bridges the pair of stationary contacts in one of the first and second operative positions and which is spaced from the pair of stationary contacts in another of the first and second operative positions. - View Dependent Claims (4, 5)
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6. A flat electromagnetic relay comprising;
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a frame which includes first and second pairs of circuit leads and a pair of energizing leads, the first pair of circuit leads having respective ones of a first pair of stationary contacts which are next to each other, the second pair of circuit leads having respective ones of a second pair of stationary contacts which are next to each other, an armature assembly which includes a support having side extensions which are secured to the frame and which include torsion webs which bias the armature assembly to a first operative position and which allow the armature assembly to pivot on the frame between the first operative position and a second operative position, a coil assembly mounted on the frame and electrically connected to the pair of energizing leads, an electromagnetic frame comprising a core leg which is inside a coil of the coil assembly and diagonally arranged wings which are disposed adjacent opposite side ends of the armature assembly, the coil assembly when energized positioning the armature assembly in the second operative position against the bias of the torsion webs, and the armature assembly further including first and second movable contact bars mounted on respective leaf spring extensions at the opposite ends of the support, the first movable contact bar bridging the first pair of contacts in the first operative position of the armature assembly and being spaced from the first pair of contacts in the second operative position, the second movable contact bar bridging the second pair of contacts in the second operative position and being spaced from the second pair of contacts in the first operative position. - View Dependent Claims (7, 8)
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9. A flat electromagnetic relay comprising;
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a rigid thermoplastic lead frame which includes a pair of stamped circuit leads and a pair of stamped energizing leads which are insert molded in the lead frame, the pair of circuit leads having respective ones of a pair of stationary contacts which are next to each other, an armature frame mounted on the lead frame so that the pair of stationary contacts are in the armature frame, an armature assembly which includes a flat support having side extensions which are secured to the armature frame and which include torsion webs which bias the armature assembly to a first operative position and which allow the armature assembly to pivot on the armature frame between the first operative position and a second operative position, a coil assembly mounted on the frame and electrically connected to the pair of energizing leads, an electromagnetic frame comprising a core leg which is inside a coil of the coil assembly and a wing which is inside the armature frame and disposed adjacent an end of the armature assembly, the coil assembly when energized positioning the armature assembly in the second operative position against the bias of the torsion webs, and the armature assembly further including a movable contact bar mounted on the flat support which bridges the pair of stationary contacts in one of the first and second operative positions and which is spaced from the pair of contacts in another of the first and second operative position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A flat electromagnetic relay comprising:
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a frame which includes first and second pairs of circuit leads and a pair of energizing leads, the first pair of circuit leads having respective ones of a first pair of stationary contacts which are next to each other, the second pair of circuit leads having respective ones of a second pair of stationary contacts which are next to each other, an armature assembly which is pivotally mounted on the frame for movement between first and second operative positions, the armature assembly further including first and second movable contact bars, the first contact bar bridging the first pair of contacts in the first operative position of the armature assembly and being spaced from the first pair of contacts in the second operative position, the second movable contact bar bridging the second pair of contacts in the second operative position and being spaced from the second pair of contacts in the first operative position, a coil assembly mounted on the frame and electrically connected to the pair of energizing leads, an electromagnetic frame comprising a core leg which is inside a coil of the coil assembly and diagonally arranged wings which are disposed adjacent opposite side ends of the armature assembly, the coil assembly when energized positioning the armature assembly in one of the first and second operative positions, and spring means biasing the armature assembly in another of the first and second operative positions. - View Dependent Claims (20, 21, 22)
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23. A flat electromagnetic relay comprising:
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a frame which includes first and second pairs of stamped circuit leads and a pair of stamped energizing leads, the first pair of stamped circuit leads having respective ones of a first pair of stationary contacts which are next to each other, the second pair of stamped circuit leads having respective ones of a second pair of stationary contacts which are next to each other, an armature assembly which is pivotally mounted on the frame for movement between first and second operative positions, the armature assembly further including first and second movable contact bars, the first contact bar bridging the first pair of contacts in the first operative position of the armature assembly and being spaced from the first pair of contacts in the second operative position, the second movably contact bar bridging the second pair of contacts in the second operative position and being spaced from the second pair of contacts in the first operative position, a coil assembly mounted on the frame and electrically connected to the pair of stamped energizing leads, an electromagnetic frame comprising a core leg which is inside a coil of the coil assembly and diagonally arranged wings which are disposed adjacent opposite side ends of the armature assembly, the coil assembly when energized positioning the armature assembly in one of the first and second operative positions, and spring means biasing the armature assembly in another of the first and second operative positions. - View Dependent Claims (24)
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Specification