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US 6,294,887 B1Granted
Motor brake device for a robot
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsShigeru Shimogama, Yasumichi Muto
Life of this patent
Estimating the term…
Abstract
A brake release circuit of an electromagnetic brake for locking a motor and an indication circuit for indicating a brake release are coupled together. Both the circuits may be turned on and off by a single switch contact. A motorbrake release device secures space saving and high safety, and is economical.
Claims6
A motor brake device comprising:
- a power source;
- at least one brake coil of an electromagnetic brake;
- and
- a motor brake power supply section which is connected between the power source and the electromagnetic brake coil, which includes:
- a rectifying element connected between a first end of the power source and a first end of the coil;
- a switch connected between a second end of the power source and the second end of the coil;
- a motor brake power supply section with an indicator power supply section which includes:
- at least a voltage dividing element which divides the rectified voltage of the motor brake power supply;
- and
- at least a constant voltage element which generates the constant voltage from the divided voltage of the voltage dividing element, and
- a indicator section which indicates the driving states of the motor based on the output of the motor brake power supply section.
8 more elements
a motor brake device comprising:
- a power source;
- at least a coil of an electromagnetic brake;
- a motor brake power supply section which is connected between the power source and the coil of electromagnetic brake, which includes:
- a first rectifying element connected between a first end of the power source and a first end of the coil of the electromagnetic brake;
- and
- a switch connected between a second end of the power source and a second end of the motor brake power supply section;
- an indicator power supply section connected between the coil of the electromagnetic brake and the motor brake power supply section and connected in parallel with the coil, which includes:
- a first resistor, wherein the first end of a first resistor is connected a first end to the motor brake power supply section;
- a second rectifying element, wherein a first end of the second rectifying element is connected to a second end of the first resistor;
- a second resistor connected between a second end of the second rectifying element and the second end of the motor brake power supply section;
- and
- a capacitor connected in parallel with the second resistor;
- and
- an indicator section, which is connected in parallel with the capacitor of the indicator power supply section.
11 more elements
Dependencies are inferred from the claim text.