Actuator control device, and method of manufacturing circuit device in actuator control device
View Patent ↗An actuator control device includes a circuit device that is resin-molded by a plurality of metal molds including at least one movable metal mold to include a first bus bar and a second bus bar. The first bus bar and the second bus bar each include a flat plate-like portion that includes two main flat-face portions having large surface areas, and two sub flat-face portions that are adjacent to the main flat-face portions and have smaller surface areas than the surface areas of the main flat-face portions. One of the main flat-face portions of the first bus bar faces one of the main flat-face portions of the second bus bar. The facing direction differs from the mold release direction of the movable metal mold.
1. An actuator control device, comprising:
a circuit device that is resin-molded by a plurality of metal molds including at least one movable metal mold to include a first bus bar and a second bus bar,
the first bus bar and the second bus bar each including a flat plate-like portion that includes two main flat-face portions with large surface areas, and two sub flat-face portions that are adjacent to the main flat-face portions and have smaller surface areas than the main flat-face portions,
one of the main flat-face portions of the first bus bar and one of the main flat-face portions of the second bus bar being arranged to face each other in a direction that is
substantially perpendicular to a mold release direction of the movable metal mold, and
the first bus bar and the second bus bar including, in a portion in which the main flat-face portions face each other, electric connection terminals connected to one side of the sub flat-face portions adjacent to the main flat-face portions, the electric connection terminals being engaged with a predetermined metal mold at the time of resin molding, and protruding portions provided at the opposite side of the electric connection terminals in the sub flat-face portions adjacent to the main flat-face portions, the protruding portions being engaged with a mold which is different from the predetermined mold at the time of resin molding.
2. The device according to claim 1 , wherein
the first bus bar further includes a first connecting portion that is provided at a portion at which the main flat-face portions face each other, and is connected to a positive-side terminal of a capacitor, the first bus bar being connected to a positive side of a DC power supply, and
the second bus bar further includes a second connecting portion that is provided at a portion at which the main flat-face portions face each other, and is connected to a negative-side terminal of the capacitor, the second bus bar being connected to a negative side of the DC power supply.
3. The device according to claim 1 , wherein
the circuit device is resin-molded by the metal molds including a fixed metal mold and the movable metal mold while the first bus bar and the second bus bar are sealed with resin, and
the protruding portions are engaged with an engaging groove of the movable metal mold.
4. The device according to claim 1 , wherein
the circuit device is resin-molded by the metal molds including a fixed metal mold and the movable metal mold while the first bus bar and the second bus bar are sealed with resin, with a resin plate being interposed between facing portions of the main flat-face portions.
5. The device according to claim 1 , wherein
at least one of the first bus bar and the second bus bar further includes an extension portion that is formed to extend from at least one of two end portions at a length-wise end of the flat plate-like portion and to be bent.
6. The device according to claim 1 , wherein
the facing direction is parallel to an upper face or a lower face of the circuit device, or is horizontal.
7. A method of manufacturing a circuit device in an actuator control device, comprising the steps of:
forming a first bus bar and a second bus bar each including a flat plate-like portion that includes two main flat-face portions with large surface areas, and two sub flat-face portions that are adjacent to the main flat-face portions and have smaller surface areas than the main flat-face portions,
supporting the first bus bar and the second bus bar with a plurality of metal molds by supporting electric connection terminals connected to one side of the sub flat-face portions adjacent to the main flat-face portions and protruding portions provided at the opposite side of the electric connection terminals in the sub flat-face portions adjacent to the main flat-face portions, in a portion in which the main flat-face portions face each other, with one of the main flat-face portions of the first bus bar and one of the main flat-face portions of the second bus bar being arranged to face each other in a direction that is substantially perpendicular to a mold release direction of at least one movable metal mold of the metal molds; and
resin-molding the circuit device with the use of the metal molds so that the circuit device includes the first bus bar and the second bus bar.