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Lead frame and distributing part using same
| Details |
Inventors: Kabasawa, Akira; Takahashi, Kazunari; Okamura, Akihiro;
Assignee: Honda Giken Kogyo Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Schuberg; Darren
Assistant Examiner: Pham; Leda
Attorney, Agent or Firm: Arent Fox PLLC
An electric motor lead frame for connecting motor coils of the same phase is formed integrally by a linear conductor. The linear conductor includes at least a single conducting wire and has terminal portions formed by bending for connection with winding ends of motor coils. |
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DETAILED DESCRIPTION The invention was made in these situations, and an object thereof is to provide a lead frame which can reduce the loss of material at the time of production and the generation of strain due to thermal expansion and a distributing part using the lead frame.
With a view to attaining the object, according to a first aspect of the invention, there is provided an a lead frame (for example, lead frames 140U, 140V, 140W in an embodiment) for connecting motor coils (for example, motor coils 8 in the embodiment) of the same phase of an electric motor, the lead frame comprising: a linear conductor (for example, a single wire conductor 28b in the embodiment) including at least a single conducting wire, and having terminal portions (for example, terminal portions 121 in the embodiment) formed by bending for connection with winding ends of the motor coils, wherein the lead frame is integrally formed by the linear conductor.
According to this construction, a ring-like lead frame can be formed integrally by bending the linear conductor.
According to a second aspect of the invention, there is provided a lead frame as set forth in the first aspect of the invention, wherein the linear conductor is covered with an insulating material (for example, an insulating material 28a in the embodiment).
Preferably, the terminal portions are exposed from the insulating material.
According to this construction, the linear conductor is exposed only at the terminal portions of the lead frame by removing the coating thereat and the remaining portion of the lead frame can remain covered with the insulating material.
According to a third aspect of the invention, there is provided a lead frame as set forth in the first or second aspect of the invention, wherein the lead frame is formed annularly along a direction in which the motor coils are arranged, and wherein the terminal portions are formed into a U-shape in such a manner as to protrude radially inwardly and are provided to correspond to the motor coils, respectively
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