US 12,719,003 B2 · Relay and battery system including the same

Abstract

A relay includes a switching device including a moving contact bar electrically connecting two contact terminals when a current flows through a coil, a magnetic device including two magnets facing each other based on a virtual reference line connecting the two contact terminals and surrounding the switching device, a rotation and supporting member positioned between a coupling interior circumference, which is some area of the interior circumference of the magnetic device, and some external circumferential surface of the switching device, the positions corresponding to the combined interior circumference in order for the magnetic device to be supported and rotated with respect to the switching device, and a current sensor that detects the direction of the current flowing between the two contact terminals. The two magnets may be rotated depending on the direction of the current.

Claims13

Dependent claims

A relay comprising:

a switching device including a moving contact bar electrically connecting two contact terminals when a current flows through a coil;
a magnetic device surrounding the switching device and including two magnets facing each other and aligned with one another along a virtual reference line connecting the two contact terminals;
a support positioned between an interior portion of an interior circumference of the magnetic device, and an exterior portion of an external circumferential surface of the switching device, and configured to support the magnetic device, wherein the magnetic device is rotatable while being supported by the support;
and
a current sensor configured to detect a direction of a corresponding current flowing between the two contact terminals,
wherein the two magnets are controlled by a controller to rotate depending on the detected direction of the corresponding current.

3 more elements

A battery system comprising:

a battery pack including a plurality of battery cells;
and
a relay including a first contact terminal connected to a first end of the battery pack and a second contact terminal connected to an output terminal,
wherein the relay includes:
a switching device including a moving contact bar electrically connecting the first and second contact terminals when a current flows through a coil;
a magnetic device surrounding the switching device and including two magnets facing each other and aligned with one another along a virtual reference line connecting the first and second contact terminals;
a support positioned between an interior portion of an interior circumference of the magnetic device, and an exterior portion of an external circumferential surface of the switching device, and configured to support the magnetic device, wherein the magnetic device is rotatable while being supported by the support;
and
a controller configured to control a rotation of the two magnets according to a direction of a relay current flowing between the first and second contact terminals.

6 more elements

Dependencies are inferred from the claim text.

Relay and battery system including the same

Life of this patent

Relay and battery system including the same

Life of this patent

Abstract

Claims13