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US 12,106,923 B2Granted
Arc box and electromagnetic contactor comprising same
AssigneeLs Electric Co., Ltd.
InventorsKyeonghun Jang, Minseok Kim, Deokyong Yun
Life of this patent
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Abstract
An arc box and an electromagnetic contactor comprising same are disclosed. The arc box according to an embodiment of the present disclosure comprises a coupling protrusion. The coupling protrusion is inserted into and coupled to a grid coupling hole of an arc chamber. Therefore, the arc chamber can be stably coupled to the arc box. In one embodiment, the coupling can be performed through snap fastening. Therefore, the arc chamber and the arc box can be easily coupled. A rib part is formed on the arc box. The rib part is positioned to be adjacent to the coupled arc chamber so as to prevent pitching of the arc chamber. Therefore, the arc chamber coupled to the arc box can stably maintain a stopping state.
Claims12
An arc box comprising:
- a space accommodating an arc chamber;
- a plurality of side walls surrounding the space and continuously formed with one another;
- and
- a partitioning member disposed inside the space to partition the space into plural regions,
- wherein the plurality of side walls comprise:
- a first side wall and a second side wall extending in a first direction and disposed to face each other;
- and
- a third side wall and a fourth side wall that are continuous with the first side wall and the second side wall, respectively, extend in a second direction different than the first direction, and are disposed to face each other,
- wherein the partitioning member is located between the third side wall and the fourth side wall and extends between the first side wall and the second side wall, and
- wherein a coupling member to which the arc chamber is coupled protrudes toward the space from at least one of one side surface of the third side wall, one side surface of the fourth side wall, and one side surface of the partitioning member facing the space,
- wherein the coupling member comprises:
- a first surface extending at a first predetermined angle with respect to the at least one of the one side surface of the third side wall, the one side surface of the fourth side wall, and one side surface of the partitioning member from which the coupling member protrudes;
- and
- a second surface extending from an end portion of the first surface toward the at least one of the one side surface of the third side wall, the one side surface of the fourth side wall, and the one side surface of the partitioning member, and
- wherein the second surface extends at a second predetermined angle with respect to the first surface, and the second predetermined angle is an acute angle.
12 more elements
An arc box comprising:
- a space accommodating an arc chamber;
- a plurality of side walls surrounding the space and continuously formed with one another;
- and
- a partitioning member disposed inside the space to partition the space into plural regions,
- wherein the plurality of side walls comprise:
- a first side wall and a second side wall extending in a first direction and disposed to face each other;
- and
- a third side wall and a fourth side wall that are continuous with the first side wall and the second side wall, respectively, extend in a second direction different than the first direction, and are disposed to face each other,
- wherein the partitioning member is located between the third side wall and the fourth side wall and extends between the first side wall and the second side wall, and
- wherein a coupling member to which the arc chamber is coupled protrudes toward the space from at least one of one side surface of the third side wall, one side surface of the fourth side wall, and one side surface of the partitioning member facing the space, and
- wherein the coupling member comprises:
- a first surface extending at a predetermined angle with respect to the at least one of the one side surface of the third side wall, the one side surface of the fourth side wall, and the one side surface of the partitioning member from which the coupling member protrudes;
- and
- a second surface extending from an end portion of the first surface to be downwardly inclined toward the at least one of the one side surface of the third side wall, the one side surface of the fourth side wall, and the one side surface of the partitioning member.
11 more elements
An electromagnetic contactor comprising:
- a fixed contact fixed to a support frame;
- a movable contact located adjacent to the fixed contact to be brought into contact with or separated from the fixed contact;
- an arc box having a space for accommodating the fixed contact and the movable contact therein;
- and
- an arc chamber accommodated in the space of the arc box and located adjacent to the fixed contact and the movable contact,
- wherein the arc box comprises:
- a plurality of side walls partially surrounding the space and disposed to face each other;
- and
- coupling members protruding from the plurality of side walls, respectively, toward the space, and
- wherein the arc chamber comprises:
- a plurality of grids stacked with being spaced apart from each other by a predetermined distance;
- support plates coupled to both end portions of the grids;
- and
- coupling holes formed through the support plates such that the coupling members are inserted, and
- wherein the plurality of side walls comprise:
- a first side wall and a second side wall extending in a first direction and disposed to face each other;
- and
- a third side wall and a fourth side wall that are continuous with the first side wall and the second side wall, respectively, extend in a second direction different than the first direction, and are disposed to face each other, and
- wherein each of the coupling members comprises:
- a first surface extending toward the third side wall or the fourth side wall;
- and
- a second face continuous with the first surface and extending toward the third side wall or the fourth side wall.
19 more elements
An electromagnetic contactor comprising:
- a fixed contact fixed to a support frame;
- a movable contact located adjacent to the fixed contact to be brought into contact with or separated from the fixed contact;
- an arc box having a space for accommodating the fixed contact and the movable contact therein;
- and
- an arc chamber accommodated in the space of the arc box and located adjacent to the fixed contact and the movable contact,
- wherein the arc box comprises:
- a plurality of side walls partially surrounding the space and disposed to face each other;
- and
- coupling protrusions protruding from the plurality of side walls, respectively, toward the space, and
- wherein the arc chamber comprises:
- a plurality of grids stacked with being spaced apart from each other by a predetermined distance;
- support plates coupled to both end portions of the grids;
- and
- coupling holes formed through the support plates such that coupling members are inserted, and
- wherein the plurality of side walls comprise:
- a first side wall and a second side wall extending in a first direction and disposed to face each other;
- and
- a third side wall and a fourth side wall that are continuous with the first side wall and the second side wall, respectively, extend in a second direction different than the first direction, and are disposed to face each other, and
- wherein the third side wall and the fourth side wall are provided with rib portions, wherein the rib portions are located adjacent to the arc chamber and protrude inward toward the space.
16 more elements
Dependencies are inferred from the claim text.