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US 12,567,545 B2Granted
Motor assembly and circuit breaker comprising same
AssigneeLs Electric Co., Ltd.
InventorHongik Yang
Life of this patent
Estimating the term…
Abstract
Disclosed are a motor assembly and a circuit breaker comprising same. According to an embodiment of the present invention, the motor assembly includes a cover member and a bush member formed of an insulating material. The bush member and the cover member physically and electrically space apart a motor and a gear member from each other. Here, the gear member is formed of a steel material and therefore maintains durability. Accordingly, the motor assembly can have improved insulation performance while maintaining operation reliability and rigidity.
Claims15
A motor assembly comprising:
- a motor electrically connected to an external control power source;
- a shaft connected to the motor to be rotated together with the motor;
- a bush member through which the shaft is coupled;
- and
- a gear member through which the bush member is coupled, and with which an external gear assembly is engaged,
- wherein the bush member is formed of an insulating material and is located between the shaft and the gear member in a radial direction, wherein the bush member comprises:
- a base formed in a plate shape having a predetermined thickness and supporting the gear member, wherein a diameter of a cross-section of the base is larger than an outer diameter of a cross-section of the gear member;
- and
- a boss part continuously formed with the base, extending in one direction, and coupled through an inside of the gear member.
6 more elements
A circuit breaker comprising:
- a circuit breaker body disposed to form an electrical connection between an external power source and a load;
- a mechanism accommodated inside the circuit breaker body and allowing or blocking the electrical connection;
- and
- a motor assembly engaged with a gear assembly of the mechanism and operated by an external control power source, wherein the motor assembly comprises:
- a motor electrically connected to the external power source;
- a shaft coupled to the motor to be rotated together with the motor, and extending in one direction;
- a gear member through which the shaft is coupled to be rotated together;
- a bush member through which the shaft is coupled and which is coupled through the gear member, so as to be located between the shaft and the gear member and rotated together with the shaft;
- and
- a cover member located to face the motor with the gear member and the bush member interposed therebetween, and rotated together with the shaft that is coupled therethrough,
- wherein the bush member and the cover member are formed of an insulating material.
8 more elements
A motor assembly comprising:
- a motor electrically connected to an external control power source;
- a shaft connected to the motor to be rotated together with the motor;
- a bush member through which the shaft is coupled;
- and
- a gear member through which the bush member is coupled, and with which an external gear assembly is engaged,
- a fastening member coupled to an end portion of the shaft in one direction in which the shaft extends;
- and
- a cover member through which the shaft is coupled, and which is located between the fastening member and the gear member to cover the gear member, wherein the cover member is formed of an insulating material,
- wherein the shaft comprises:
- a shaft part extending in the one direction, coupled through the bush member, and partially inserted into the cover member;
- and
- a head part continuous with the shaft part, and inserted through the cover member such that one end portion thereof is coupled to the fastening member;
- and
- wherein the bush member is formed of an insulating material and is located between the shaft and the gear member in a radial direction.
11 more elements
Dependencies are inferred from the claim text.