124results about How to "Prevent bad connection" patented technology

Refrigerator including a body forming an outer appearance of the refrigerator, a terminal detachably mounted on the body for controlling the refrigerator, a power supply device at one side of the body, for receiving power from an outside of the refrigerator, converting to a predetermined charge power, and supplying to the terminal, and an electric connection part connected between the power supply device and the terminal.

An optical fiber connecting tool is provided in which an optical fiber connecting tool 5 is used which has a ferule 7, a connecting structure 10 which has two clamping sections 18, 19 which are disposed in a ferule 7. A pre-installed optical fiber 6 and a newly installed optical fiber 17 are clamped in a butt-connected condition by a clamping section 18. The newly installed optical fiber 17 is clamped by the other clamping section 19. An optical fiber connecting tool 1 is provided which has an open / close member 2 which is detachably disposed on the clamping section 18 and another open / close member 3 which is detachably disposed on the another clamping section 19 such that the both of the open / close members 2, 3 can be operated independently. Also, a method for connecting optical fibers according to the present invention prevents an increase in a loss due to a bent optical fiber and a damage in the optical fiber by extracting the open / close member 2 from the clamping section 18 before extracting the open / close member 3 from the another clamping section and dispose a deformation which is generated on the tip section of the optical fiber when the optical fiber connecting part is attached on the tip section of the optical fiber according to steps for performing an extracting operation for the open / close member e from the another clamping section. Here, for the optical fiber connecting part, for example, various members can be adapted such as a member which does not have the above explained ferule, and a member which realize a connection and a clamping operation for the optical fibers by a structure of only the above explained connecting structure.

An electrical connector includes a plug connector and a receptacle connector detachably fitted with each other. The plug connector comprises a plurality of coaxial cables, a flexible printed circuit board and a ground bar. Each of the coaxial cable has a center conductor, an insulator covering the center conductor, a braid as an external conductor covering the insulator, and a sheath covering the braid. The flexible printed circuit board has lands each connected to the center conductor of the coaxial cable and land portions to which the ground bar is connected. The grand bar has a main portion adapted to contact the braids of the coaxial cables, and fixed portions each positioned contiguously with the main portion and connected to the land portion. The electrical connector achieves the low height geometry of the plug connector and hence that of the receptacle connector and precludes any failed connection between the ground bar and the coaxial cables.

A connector capable of effectively preventing a connection failure due to incomplete insertion of an object which is connected to the connector. When the front end of a flexible circuit (1), which is inserted in the connector body (10), makes contact with a lock member (50) and when a pressing member (30) is then pivoted in one direction with the lock member (50) deformed to the outside in the width direction of the connector body (10), a protrusion (32) of the pressing member (30) makes contact with the lock member (50) to restrict the rotation of the pressing member (30), and when the pressing member (30) is pivoted in said direction with the lock member (50) returned to the inside in the width direction of the connector body (10), the pressing member (30) is permitted to rotate. The configuration prevents the pressing member (30) from pivoting to a closed position with the flexible circuit (1) incompletely inserted, and this effectively prevents a connection failure due to the incomplete insertion of the flexible circuit (1).

Provided is a multilayer printed wiring board having a terminal portion of high quality. This multilayer printed wiring board 1 has a flexible portion 2 having flexibility, the flexible portion 2 that can be bent when used, a rigid portion 3 formed continuously with the flexible portion, the rigid portion 3 having greater rigidity than the flexible portion 2, and a terminal portion 4 formed continuously with the flexible portion 2 at an end portion of the flexible portion. The rigid portion 3 includes a rigid layer 6 having insulation properties. The terminal portion 4 includes an insulating layer 8 formed of the same material as that for the rigid layer 6, the insulating layer 8 having a conductive layer 9 formed on the surface thereof, the conductive layer 9 having a predetermined terminal pattern and serving as a connecting terminal.

The purpose of the present invention is to provide a module which is capable of improving the connection reliability between a wiring board and an electronic component that is mounted on the wiring board. A module (1) is provided with: a wiring board (2); an electronic component (3) that is mounted on one main surface of the wiring board (2); an underfill resin layer (4) that is formed on all over the surface of the one main surface of the wiring board (2) so as to fill up the gap between the one main surface of the wiring board (2) and the electronic component (3); and a mold resin layer (5) that is formed so as to cover the underfill resin layer (4) and the electronic component (3). The underfill resin layer (4) is formed of a resin which contains a filler having a particle diameter that is smaller than the distance between the one main surface of the wiring board (2) and the electronic component (3).

Conductive ball part (1) is produced by applying a coating layer composed of Cu layer (3) and layer of Sn-5.5Ag alloy of noneutectic composition (2) onto approximately spherical core (4) constituted of a nonmetallic material. The conductive ball part (1) is arranged through a flux on a land of electronic part, and reflow thereof is carried out at heating temperature whose peak temperature reaches 250 to 260 DEG C. The Sn-5.5Ag alloy of noneutectic composition is conditioned into a state in which solid phase portions and liquid crystal portions coexist to thereby attain relative reduction of fluidity with the result that an SnCu layer formed on the surface of the Cu layer (3) is fixed on the land without exposure. An electrode can be formed without exposure of the SnCu layer of relatively poor solder wettability. Joint zone of excellent electrical conduction and mechanical strength can be formed between the electronic part and a circuit board.

A connecting device of a flexible printed circuit board has a reinforced backlight FPC board, is free from bad contact resulting from insufficient insertion of a terminal portion of a flexible printed circuit board into a connector, and ensures good connection without leaving contaminants, scratches, or the like on contacts of the terminal portion. The connecting device of a flexible printed circuit board has a terminal portion having a contact formed as a printed conductor in a tip end portion of a film-form flexible printed circuit board, and a connector having an insertion slot into which the terminal portion is inserted and a contact fitted inside the insertion slot and connected to the contact of the terminal portion. Moreover, a reinforcing plate is bonded on the face of the terminal portion opposite to the face thereof on which the contact is formed, and an ear-like piece that makes contact with the opening rim of the insertion slot in the connector is formed in a position a predetermined distance inward from the tip end of the terminal portion in the length direction of the flexible printed circuit board.

The present invention relates to a connection terminal core for a cable connector and a method for connecting the connection terminal core for the cable connector and a cable with each other. The connection terminal core for a cable connector according to the present invention includes: a connection terminal portion; a terminal core body; and a lead member. When heat is applied from the outside to the terminal core body in a state in which a cable side connection line is inserted into a cable side connection line insertion hole, the heat conducted through the terminal core body melts the lead member introduced into the cable side connection line insertion hole, and the terminal core body and the cable side connection line can be coupled with each other as the lead member is melted and then hardens again. According to the above, a faulty connection can be prevented, and a neat external appearance can be obtained after connection.