Emc terminal ground structure for bldc motor
AssigneeHyoseong Electric, Co., Ltd.
InventorJingeun Jung
Life of this patent
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Abstract
An electromagnetic compatibility (EMC) terminal ground for a brushless direct current (BLDC) motor is disclosed. The EMC terminal ground includes a metal ground configured to be applied to the BLDC motor, the BLDC motor including: a stator block configured to include a base portion and a ball bearing reception portion; a rotor configured to be coupled to the stator block; a stator core located inside the rotor; a shaft configured to pass through the rotor and the stator core; a heat sink installed at the lower end of the stator block; and a PCB cover configured to cover the lower end portion of the heat sink; and a pair of ball bearings disposed at intervals; wherein the metal ground grounds the stator core, the rotor, and the heat sink.
Claims3
An electromagnetic compatibility (EMC) terminal ground for a brushless direct current (BLDC) motor, the EMC terminal ground comprising a metal ground (800) configured to be applied to the BLDC motor, the BLDC motor comprising:
- a stator block (100) configured to include a base portion (110) and a ball bearing reception portion (120);
- a rotor (200) configured to be coupled to the stator block (100) and to be rotated;
- a stator core (300) located inside the rotor (200);
- a shaft (400) configured to pass through centers of the rotor (200) and the stator core (300) and to transfer rotation power;
- a heat sink (500) installed at a lower end of the stator block (100), and configured to dissipate heat;
- and
- a PCB cover (600) configured to cover and protect the lower end portion of the heat sink 500;
- and
- a pair of ball bearings (700) disposed at intervals on upper and lower sides between the ball bearing reception portion (120) and the shaft (400);
- wherein the metal ground (800) grounds:
- the stator core (300);
- the rotor (200);
- and
- the heat sink (500).
Dependencies are inferred from the claim text.