Kabushiki Kaisha Tokai Rika Denki Seisakusho

Other

Harehide Sasaki

Yoshiaki Kato

Hiroshi Kobayashi

Shinji Takahashi

Katsumasa Matsuoka

Masato Minakata

Reiki Okamoto

Keiichi Ito

Kazuyuki Shiraki

Masanori Wakui

Atsushi Nishida

Yukio Isomura

Takashi Kikuta

Kozo Nishimura

Wataru Kanou

Fumikatsu Mori

Seiichi Watanabe

Kazuharu Yoshimatsu

Toshiki Nunotani

Toshiaki Nunotani

An electric actuator, which includes an exposed actuator terminal, for eliminating the need for insert molding and facilitating the manufacturing of a housing while preventing liquid from entering the housing. The actuator includes a motor. The housing is attached to the motor and includes an opening. A control circuit board accommodated in the housing controls the motor. An actuator terminal is arranged on the control circuit board and connected to an external terminal of an external connector through the opening. A terminal support arranged on the control circuit board supports the actuator terminal. A hollow fitting is attached to the terminal support and fitted into the opening so as to extend into the housing. A seal, arranged between the terminal support and the fitting, seals the housing.

Electric actuator

An electrical connection terminal for a connection hole includes: a base-side end portion () having a predetermined width; a retaining portion () having an increasing width wider than the predetermined width of the base-side end portion (), the retaining portion () being formed integrally with the base-side end portion (); and an insertion taper portion () having a taper width narrower than the increasing width of the retaining portion () to reach a leading end portion, the insertion taper portion () being formed integrally with the retaining portion (); in which the insertion taper portion () is composed of a plurality of taper portions taper angles of which change so as to increase along an insertion direction.

Electrical connection terminal for connection hole and engagement structure of electronic component including the same

This connector-mounting configuration comprises: a latching claw that is provided at a connector and latches to a substrate, whereby the substrate is equipped with the connector; a protruding portion that is provided so as to protrude from the latching claw and latches to the substrate, whereby the latching claw latches to the substrate; and a flexing portion that is formed from a first plate member that is a plate-like component and that is disposed at a position closer to the base end side of the latching claw than the protruding portion thereof. The flexing portion is disposed so that the plate thickness direction of the first plate member coincides with the protruding direction of the protruding portion.

Connector-mounting configuration

This connector comprises: a connector main body mounted on a substrate; a latching piece that is attached to the connector main body and which temporarily joins the connector main body to the substrate by temporarily latching to an edge portion of an attachment hole formed in the substrate; and a rib having a width wider than the latching piece and which is attached to the connector main body. The rib is inserted into the attachment hole, and when external force in a direction of moving away from the substrate acts on one end side of the connector main body, whose end portions in the width direction interfere with the interior peripheral portion of the attachment hole, so as to generate resistance force that resists the external force.

Connector

This connector configuration comprises: a fixing member that is a component of a connector and is fixed to a substrate in order to mount the connector onto the substrate; a case that is a component of the connector and has an installation groove formed thereon, into which the fixing member is installed; and a regulating portion provided at either one of the fixing member and the case along the direction of installation of the fixing member to the case. A regulating groove is provided along the direction of installation on the other one of the fixing member and the case, and when the fixing member is installed onto the case, the regulating portion is guided along the regulating groove and tilting of the fixing member relative to the direction of installation is controlled.

Connector configuration

The fixing member of the present invention can be mounted to a fixed member that is fixed to a printed circuit board and that is used for fixing the fixed member to the printed circuit board, the fixing member including: a mounting member main body fixed to the fixed member; male connector portions having at tip ends thereof lug portions that are engaged with an opening edge of an insertion opening in the printed circuit board when inserted into the inserting opening; and contact portions that contact with a soldering land formed at the printed circuit board and are joined to the soldering land by soldering when the lug portions are engaged with the opening edge, the contact portions being formed at the mounting portion main body and the male connector portions extend arm-shaped from the mounting portion main body or from the contact portions.

Fixing member and fixing structure

An upper tier terminal is provided with a fitting portion and a board attachment portion. When the upper tier terminal is being fabricated, a first wire member which is a component of the fitting portion and a second wire member which is a component of the board attachment portion, whole peripheral surfaces of which have been subjected to a plating treatment beforehand, are employed. End portions of the first wire member and the second wire member are mutually superposed, and the first wire member and the second wire member are joined. Thus, the fitting portion is formed and the board attachment portion is formed. Hence, a surface of the upper tier terminal is structured by a plating layer at the peripheral surface of the first wire member and a plating layer at the peripheral surface of the second wire member. Consequently, a post-plating treatment can be rendered unnecessary.

Connector terminal fabrication process and connector terminal

A fixing member of the present invention can be mounted to a fixed member that is fixed to a printed circuit board, and is used for fixing the fixed member to the printed circuit board, the fixing member including: a male connector portion inserted into an insertion opening formed in the printed circuit board; a plurality of arm portions provided at the male connector portion; lug portions provided at each tip end side of the arm portions and engaged with an opening edge of the insertion opening; and a lug-guiding portion extending out from a tip end portion of at least one lug portion to guide the lug portion to the insertion opening when the lug-guiding portion comes in contact with the opening edge and is further pressed.

Fixing member and mounting structure

A waterproof connector has a housing formed with holding portions capable of holding terminal fittings, and formed at one end with a fitting hole into which electric wires connected to the held terminal fittings are inserted; a waterproof plug having first electric wire insertion holes corresponding to the holding portions and fitted into the fitting hole; and a holder having a body portion preventing the waterproof plug from detaching from the housing and provided on the opposite side of the waterproof plug to the terminal fittings. The body portion of the holder is formed with second electric wire insertion holes into which the electric wires inserted into the first electric wire insertion holes are inserted. Further, the body portion is formed integrally with fitting protrusions that fit into the unused first electric wire insertion holes, thereby preventing drops of water from entering the housing through the unused first electric wire insertion holes.

Waterproof connector

In a terminal manufacturing method of the present invention, first a thin plate-like body including a thin plate-like terminal portion and a thin plate-like leg portion is formed with a die. The thin plate-like terminal portion has a shape corresponding to a terminal portionof an upper-level terminaland a terminal portionof a lower-level terminal. The thin plate-like leg portion has the shape corresponding to a leg portionof the upper-level terminaland a leg portionof the lower-level terminal. Then, the upper-level terminalis formed by bending the thin plate-like leg portion toward one side of a plate-thickness direction. Also, the lower-level terminalis formed by bending the thin plate-like leg portion toward the other side of the plate-thickness direction. Thus, by simply changing the bending direction of the thin plate-like leg portion, either the upper-level terminalor the lower-level terminalcan be formed. According to the terminal manufacturing method of the invention, when the terminal includes a first terminal mounted in an upper-level mounting hole of a connector housing and a second terminal mounted in a lower-level mounting hole, these two terminals can share a blank material of the same type in common at the manufacturing stage thereof.

Method of manufacturing terminal

A female terminal, into which a male terminal is inserted and connected, is formed in a shape of a substantially square tube. Respective one portions, in an axial direction and between corner portions, of a ceiling wall, a floor wall, and a pair of left and right side walls, which are four wall portions, are plate spring portions which contact the male terminal while elastically deforming independently of one another. Because the wall portions themselves structure the plate spring portions, there is no need to provide a plate spring within a tube wall, and the female terminal can be made compact. Further, contact pressure is ensured because the respective plate spring portions contact the male terminal from different directions.

Female terminal

A connector in which a housing and a retainer are coupled with sufficient strength when the connector is reduced in scale. In this connector, provisional anchoring pieces and main anchoring pieces are provided at two end portions of an inner peripheral wall of an insertion hole formed in the housing, with lengths along a direction that intersects a direction of insertion of the retainer into the insertion hole. At outer sides of two end portions of the retainer, anchorage pawls, which are formed to be engageable with the main anchoring pieces and the provisional anchoring pieces, are provided with lengths along the intersecting direction. With this structure, when the retainer is inserted into the insertion hole of the housing, the anchorage pawls engage, at two end portions of the connector, with the provisional anchoring pieces and with the main anchoring pieces.

In order to prevent a fixing terminal from being dislocated from regular-mounting-position on a connector main body when force is applied from outside before placed on a substrate, a surface-mounted connector including a connector main body to be placed on a substrate, a fixing terminal that is temporarily fixed to a side wall of the connector main body by being press-fitted, along the side wall, from a side opposite to that in which the connector main body is placed on the substrate, and that, in the temporarily fixed state, is soldered to the substrate, thereby allowing the connector main body to be mounted on the substrate, and shielding walls provided integrally with the connector main body alongside the fixing terminal in the temporarily fixed state so as to correspond to the fixing terminal, and preventing the fixing terminal in the temporarily fixed state from being interfered from outside, is provided.

Surface-mounted connector

A connector enables a size reduction while maintaining a function of reliably preventing terminal members from falling out of terminal holes. In this connector, a plate spring piece is provided in a terminal hole of a connector housing, with a length thereof set to an axial direction of the terminal hole, and an engaging pawl protrudes from the plate spring piece. When a female terminal is inserted into the terminal hole, the engaging pawl engages with the female terminal and bends the plate spring piece downward, enabling the insertion. When the female terminal is inserted to a predetermined depth in the terminal hole, the plate spring piece returns and the engaging pawl moves into an engaging hole of the female terminal. The plate spring piece has a structure of which one length direction end portion and one side portion, along the length direction, are fixed to the connector housing.

A connector has terminals, each having a tip end portion. A wiring board has through holes. A land is provided on the wiring board about each through hole. When the connector is mounted on the wiring board, each terminal is connected to one of the lands with a part of the tip end portion being located in the corresponding through hole. The ratio of the cross-sectional area of each tip end portion to the cross-sectional area of each through hole is at least 0.11 and no more than 0.89. This improves the reliability of the joint portions between the terminals and the wiring board.

Growing community of inventors

Aichi-ken, Japan

Harehide Sasaki