Terminal base and electrical connection structure of devices

Abstract

In an electrical connection structure of a device, a first device and a second device are electrically connected to each other through a terminal base. A terminal base includes a plurality of terminals configured to electrically connect a first device and a second device to each other, each of the plurality of terminals being electrically conductive and a housing configured to hold the plurality of terminals, the housing being made of an electrically insulating resin in which each of the plurality of terminals includes a first connection portion exposed to an outside of the housing so as to beconnected to the first device, a second connection portion exposed to the outside of the housing so as to be connected to the second device, and an insert portion insert-molded in the housing and inwhich he insert portion has a solid cylindrical shape or a hollow cylindrical shape.

Description

technical field [0001] The present invention relates to a terminal base configured to electrically connect devices to each other. The present invention also relates to an electrical connection structure using the terminal base. Background technique [0002] Figure 12A , 12B and 12C show the prior art terminal base and the prior art equipment electrical connection structure. Such as Figure 12A , 12B and 12C, an electric vehicle or a hybrid vehicle includes an inverter 1 and a motor 2 in addition to a high-voltage battery. In order to electrically connect the inverter 1 and the motor 2, terminal bases 3 and 4 are used (for example, see JP2015-62343A, JP2017-143024A). The terminal base 3 includes: an electrically insulating case 5 attached across the casings of the inverter 1 and the motor 2; and conductive terminals 6 inserted into the case 5 so as to be housed in the case 5 in a locking manner. . Meanwhile, the terminal base 4 includes a housing 7 and terminals 8 like t...

AI Technical Summary

Problems solved by technology

Therefore, it is more difficult to manage the depth, width, etc. of the etching process by laser on the side surface 9 compared to the smooth front surface 13 and the smooth rear surface 14 of each terminal 8.

That is, in order to make the insertion portion of the side surface 9 easy to be held by something when using surface treatment, for example, it is difficult to manage the depth, width, etc. of the side surface 9 when performing laser etching processing.

In addition, when the generated burr 12 is large, resin cracking occurs in the case 7 due to the edge of the burr 12

If resin breakage occurs, oil in motor 2 may flow into inverter 1

This leads to a reduction in the reliability of the insert molding of the terminal 8

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