Motor brake module having reduced vibration in braking motion

Patent metadata

Field	Value
Publication number	US-11353071-B2
Application number	US-201816017784-A
Country	US
Kind code	B2
Filing date	Jun 25, 2018
Priority date	Mar 29, 2018
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

A motor brake module for braking a motor is provided. The motor includes a shell, a shaft portion and a driving portion. The motor brake module includes a brake assembly, a block assembly and an armature assembly. The brake assembly includes a shaft hole, plural teeth and plural openings. The shaft portion passes through the shaft hole, and the shaft portion drives the brake assembly to rotate when the shaft portion is rotated. The armature assembly is connected with the block assembly for driving the block assembly to move between the armature assembly and the brake assembly. When the block assembly is moved toward the brake assembly, a portion of the block assembly is contacted with one of the plural teeth and the other portion of the block assembly passes through one of the plural openings.

First claim

What is claimed is:

1. A motor brake module for braking a motor, the motor comprising a shell, a shaft portion and a driving portion, the shaft portion disposed on the driving portion, the shaft portion driven by the driving portion and rotated accordingly, the motor brake module comprising:
a brake assembly disposed between the shell and the driving portion, and comprising a shaft hole, plural teeth, plural openings and a brake plate, wherein the shaft portion passes through the shaft hole, so that the shaft portion drives the brake assembly to rotate when the shaft portion is rotated, wherein the brake plate comprises a main body and the plural teeth, wherein the plural teeth are protruded from an outer periphery of the main body and surrounded with the outer periphery of the main body, and the main body comprises the shaft hole and the plural openings, wherein the plural openings are surrounded around the shaft hole;
a block assembly comprising a first block component and a second block component, wherein the first block component is corresponding to the outer periphery of the main body, and a position of the second block component is corresponding to positions of the plural openings disposed on the main body; and
an armature assembly disposed on the shell and comprising a first armature base and a second armature base, wherein the first armature base is connected with the first block component for driving the first block component to move between the first armature base and the brake plate, wherein when the first block component is moved toward the brake plate, the first block component is contacted with one of the plural teeth, wherein the second armature base is connected with the second block component and adjacent to the first armature base for driving the second block component to move between the second armature base and the brake plate, wherein when the second block component is moved toward the brake plate, the second block component passes through one of the plural openings, so that the motor is braked.

2. The motor brake module according to claim 1 , wherein the first block component is in parallel with the second block component, and the first block component and the second block component are in parallel with the shaft portion respectively.

3. The motor brake module according to claim 1 , wherein each of the plural teeth comprises a first side and a second side, the first side is corresponding to the second side, wherein an expending direction of the first side and an expending direction of the second side comprise corresponding openings of the plural openings disposed on the main body respectively, and each of the plural teeth is adjacent to two corresponding openings of the plural openings.

4. The motor brake module according to claim 3 , wherein a number of the plural openings is equal to two times of a number of the plural teeth.

5. The motor brake module according to claim 3 , wherein an aperture size of each of the plural openings is equal to a size of the second block component.

6. The motor brake module according to claim 3 , wherein when the first block component is contacted with the first side of one of the plural teeth, the second block component passes through an opening of the plural openings in the expending direction of the first side of a tooth of the plural teeth contacted with the first block component, wherein when first block component is contacted with the second side of one of the plural teeth, the second block component passes through an opening of the plural openings in the expending direction of the second side of the tooth of the plural teeth contacted with the first block component, wherein a center of the first block component, a center of the second block component and a hole center of the shaft hole are disposed in a line.

7. The motor brake module according to claim 1 , wherein each of the plural teeth is corresponding to a single opening of the plural openings, and each of the plural teeth comprises a first side and a second side, wherein the first side is corresponding to the second side.

8. The motor brake module according to claim 7 , wherein an aperture size of each of the plural teeth is bigger than a size of the second block component.

9. The motor brake module according to claim 7 , wherein when the first block component is contacted with the first side or the second side of one of the plural teeth, the second block component passes through the single opening of the plural openings adjacent to a tooth of the plural teeth contacted with the first block component, and the second block component is contacted with an inner wall surface of the single opening of the plural openings, wherein a position of the inner wall surface of the single opening of the plural openings contacted with the second block component is corresponding to a position of the tooth of the plural teeth contacted with the first block component.

10. The motor brake module according to claim 7 , wherein a number of the plural openings is equal to a number of the plural teeth.

Assignees

• Delta Electronics Inc

Inventors

• Shao Chi-Huan
• Chang Chi-Shun
• Hsu Chih-Ming

Classifications

• F16D63/006 Primary

  Positive locking brakes · CPC title

• H02K7/102

  with friction brakes · CPC title

• H02K7/1021

  Magnetically influenced friction brakes · CPC title