Electronic contactor including separable upper bodies

Patent metadata

Field	Value
Publication number	US-9312087-B2
Application number	US-201214237972-A
Country	US
Kind code	B2
Filing date	Dec 21, 2012
Priority date	Sep 26, 2012
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

Disclosed is an electronic contactor including: a lower body; a magnetic force generator disposed within the lower body and magnetized by electric power transferred from outside to perform suctioning operation; a crossbar coupled to an upper portion of the magnetic force generator and provided with a movable contact to be lifted or lowered; a pair of separable upper bodies each being provided at one side thereof with a stationary contact and an auxiliary stationary contact and respectively coupled to upper opposite ends of the lower body such that the movable contact and auxiliary movable contacts are placed therein, facing ends of the upper bodies being coupled to each other inside the upper bodies so as to face each other; and a cover coupling upper ends of the upper bodies such that an upper end of the crossbar and the movable contact are exposed.

First claim

The invention claimed is:

1. An electronic contactor, comprising:
a lower body;
a magnetic force generator disposed within the lower body, and configured to
be magnetized by electric power transferred from outside the magnetic force generator, and
perform attracting operation by using magnetic force generated by the magnetized magnetic force generator;

a crossbar coupled to an upper portion of the magnetic force generator, and comprising with at least one movable contact configured to be lifted or lowered and at least one auxiliary movable contact configured to be lifted or lowered,
wherein, in a direction toward the lower body, the at least one movable contact is disposed lower than the at least one auxiliary movable contact;

a pair of separable upper bodies each comprising:
a stationary contact; and
an auxiliary stationary contact,
wherein the upper bodies are respectively coupled to upper opposite ends of the lower body,
wherein at least one movable contact and the at least one auxiliary movable contact are placed in a combined upper bodies, and
wherein facing ends of the upper bodies are coupled to each other inside the upper bodies, and the facing ends face each other; and

a cover coupling upper ends of the upper bodies,
wherein an upper end of the crossbar and the at least one movable contact are exposed to an outside of the cover,
wherein the upper bodies comprise coupling sections at the facing ends thereof, the coupling sections being coupled to each other to cross each other, and
wherein a contact face between the coupling sections coupled to cross each other comprises a latch boss and a latch recess coupled to each other in a male-female coupling manner.

2. The electronic contactor according to claim 1 , wherein the magnetic force generator, comprises:
a bobbin coil disposed within the lower body, and configured to generate the magnetic force;
a stationary core coupled to a lower end of the bobbin coil, and configured to be magnetized by the magnetic force transferred from the bobbin coil;
a movable core disposed at an upper end of the bobbin coil, and configured to be attracted downwards as the stationary core is magnetized; and
a first resilient member coupled between the bobbin coil and the movable core, and configured to bias the movable core toward the crossbar.

3. The electronic contactor according to claim 1 , wherein each of the upper bodies, at one side thereof, comprises:
a plurality of first through-holes through which one end of the stationary contact is exposed to the outside of the upper bodies; and
a plurality of second through-holes above the first through-holes,
wherein one end of the at least one auxiliary stationary contact is exposed to the outside of the upper bodies through the second through-holes.

4. The electronic contactor according to claim 1 , wherein the crossbar comprises:
a plurality of mover installation holes formed at opposite sides of the crossbar, wherein the plurality of mover installation holes receives the at least one movable contact and the at least one auxiliary movable contact therein while allowing the at least one movable contact and the at least one auxiliary movable contact to be lifted or lowered; and
a plurality of second resilient members disposed within the mover installation holes, and configured to apply vertical compressive force to the movable contacts.

5. The electronic contactor according to claim 1 , wherein each of the upper bodies, at one side thereof, comprises an insulating housing for phase-to-phase insulation of the stationary contact.

6. The electronic contactor according to claim 2 , wherein each of the upper bodies, at one side thereof, comprises:
a plurality of first through-holes through which one end of the stationary contact is exposed to the outside of the upper bodies; and
a plurality of second through-holes above the first through-holes,
wherein one end of the at least one movable contact is exposed to the outside of the upper bodies through the second through-holes.

7. The electronic contactor according to claim 6 , wherein the crossbar comprises:
a plurality of mover installation holes formed at opposite sides of the crossbar, wherein the plurality of mover installation holes receives the at least one movable contact and the at least one auxiliary movable contact therein while allowing the at least one movable contact and the at least one auxiliary movable contact to be lifted or lowered; and
a plurality of second resilient members disposed within the mover installation holes, and configured to apply vertical compressive force to the movable contacts.

8. The electronic contactor according to claim 7 , wherein
the upper bodies comprise coupling sections at the facing ends thereof, the coupling sections being coupled to each other to cross each other, and
a contact face between the coupling sections coupled to cross each other comprises a latch boss and a latch recess coupled to each other in a male-female coupling manner.

9. The electronic contactor according to claim 8 , wherein each of the upper bodies, at one side thereof, comprises an insulating housing for phase-to-phase insulation of the stationary contact.

Assignees

• Hyun Dai Heavy Ind Co Ltd

Inventors

• Yeon Young-Myoung
• Kwon Ki-Jeong
• Jin Young-Ho
• Oh Jae-Hyuk

Classifications

• H01H50/04

  Mounting complete relay or separate parts of relay on a base or inside a case · CPC title

• H01H50/047

  Details concerning mounting a relays · CPC title

• H01H50/042

  Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support · CPC title

• H01H50/02 Primary

  Bases; Casings; Covers (frames for mounting two or more relays or for mounting a relay and another electric component H02B1/01, H04Q1/08, H05K) · CPC title

• H01H51/06

  Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity · CPC title