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US 12,756,265 B2Granted
Motor device, method of manufacturing motor device, terminal connection mechanism, terminal connection method, and electric brake device
AssigneeHitachi Astemo, Ltd.
InventorsTatsuro Kobune, Hikaru Morita, Takatoshi Hattori
Life of this patent
Estimating the term…
Abstract
Cover-side terminals of a motor cover are electrically press-fitted over and fixed to motor terminals of a motor case at a first position which is separate from a base portion by a first length in an extending direction of the motor terminals. A fixing portion of the motor cover is press-fitted over and fixed to a protruding portion at a second position which is separate from the base portion by a second length which is different from the first length in the extending direction of the motor terminals.
Claims5
A motor device, comprising:
- a motor case;
- and
- a motor cover,
- wherein the motor case includes:
- a motor;
- a motor terminal connected to the motor;
- and
- a case main body in which the motor is housed, the case main body including a base portion from which the motor terminal extends and a protruding portion protruding from the base portion, and
- wherein the motor cover includes:
- a cover-side terminal as an electrical connection portion that is electrically press-fitted over and fixed to the motor terminal at a first position which is separate from the base portion by a first length in an extending direction of the motor terminal;
- and
- a fixing portion that constitutes a mechanical connection portion press-fitted over and fixed to the protruding portion at a second position which is separate from the base portion by a second length which is different from the first length in the extending direction of the motor terminal,
- wherein the first length and the second length are configured such that a timing of starting press-fitting for an electrical connection between the motor terminal and the cover-side terminal is earlier than a timing of starting press-fitting for a mechanical connection of the protruding portion to the fixing portion.
10 more elements
A method of manufacturing a motor device, the method comprising:
- a first step of preparing a motor case, the motor case including:
- a motor;
- a terminal connected to the motor;
- a case main body in which the motor is housed, the case main body including a base portion from which the terminal extends and a protruding portion protruding from the base portion;
- a second step of preparing a motor cover, the motor cover including:
- an electrical connection portion to be electrically fixed to the terminal;
- and
- a fixing portion that constitutes a mechanical connection portion to be press-fitted over and fixed to the protruding portion;
- and
- a third step of fixing the motor case and the motor cover to each other so that a first press-fit timing which is a start time of press-fitting the terminal into the electrical connection portion in an extending direction of the terminal and a second press-fit timing which is a start time of press-fitting the protruding portion into the fixing portion in the extending direction of the terminal are different from each other,
- wherein, in the third step, the first press-fit timing is earlier than the second press-fit timing.
8 more elements
Dependencies are inferred from the claim text.