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US 10,518,761 B2Granted
Electric park brake with electromagnetic brake
AssigneeAkebono Brake Industry Co., Ltd.
InventorCarla Thomas
Life of this patent
Estimating the term…
Abstract
A brake assembly comprising: (a) a caliper including: (i) one or more pistons, (b) one or more rotary to linear actuators that provides an axial force to move the one or more pistons, (c) a motor gear unit in communication with the one or more rotary to linear actuators, the motor gear unit including: (i) a motor, and (ii) an electromagnetic brake that prevents movement of the motor gear unit, the pistons, or both when the motor is turned off so that the brake apply is maintained.
Claims20
A brake assembly comprising:
- a. a caliper including:
- i. one or more pistons,
- b. one or more rotary to linear actuators that provides an axial force to move the one or more pistons,
- c. a motor gear unit in communication with the one or more rotary to linear actuators, the motor gear unit including:
- i. a motor, and
- ii. an electromagnetic brake that prevents movement of the motor gear unit, the one or more pistons, or both when the motor is turned off so that a brake apply is maintained;
- and
- wherein the electromagnetic brake includes a core having a plurality of legs and each of the plurality of legs are plastically deformable during an assembly process.
5 more elements
A brake assembly comprising:
- a. a caliper including:
- i. one or more pistons,
- b. one or more rotary to linear actuators that provides an axial force to move the one or more pistons,
- c. a motor gear unit in communication with the one or more rotary to linear actuators, the motor gear unit including:
- i. a motor, and
- ii. an electromagnetic brake that prevents movement of the motor gear unit, the one or more pistons, or both when the motor is turned off so that a brake apply is maintained, the electromagnetic brake including:
- 1. a core having a wall thickness and one or more flanges, wherein the one or more flanges have a radial width that is about four times to about ten times the wall thickness.
4 more elements
A method comprising:
- a. creating an electromagnetic brake for a motor by:
- i. forming a core that includes a plurality of legs;
- ii. placing one or more electrical coils into the core;
- iii. placing a moving plate proximate to an electromagnet;
- and
- iv. placing a rotor adjacent to the moving plate;
- b. deforming each of the plurality of legs during an assembly process.
4 more elements
Dependencies are inferred from the claim text.