JPH0531123U - Board-in connector with terminal - Google Patents

Abstract

(57) [Summary] [Purpose] To eliminate the need for a crimping process with a terminal in a connector for connecting an electric wire to a board, and to allow the electric wire to be pre-attached or post-attached. A terminal 13 including a board locking portion 15 and a wire conductor holding portion 16 is mounted in a connector housing 12 of a connector body 11, and the board locking portion 15 is projected on the back side of the connector body 11. .. This board locking portion 15 is used for the board 8
By inserting the tip portion of the terminal 13 protruding from the through hole 9 into the solder bath 18 by the capillary phenomenon of the solder 19, the solder 19 rises up the inner wall surface of the terminal 13 and the wire conductor 2 The wire conductor sandwiching portion 16 is soldered.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a board-in connector with a terminal that can be connected to a printed wiring board (hereinafter referred to as a board) without crimping a terminal to an electric wire conductor in advance.

[0002]

[Prior Art]

 Various connectors are used when connecting electric wires to a substrate on which various wiring patterns are formed. Before using this type of connector, as shown in FIG. 4, first, the coating of the end portion of the electric wire 1 is stripped to expose the electric wire conductor 2, and the exposed portion of the electric wire conductor 2 is connected to the terminal 3. It is crimped. The terminal 3 has a crimping portion 4 and a soldering portion 5 at its tip. The soldering portion 5 is inserted into, for example, a connector housing 7 of a connector 6 as shown in FIG. It is made to project to the back side of 6. In the above state, the terminal 3 and the board 8 are soldered by being inserted into the through hole 9 of the board 8 and immersed in a solder bath (not shown). There are various types of the terminals 3 described in, for example, Japanese Utility Model Publication No. 3-23663, and in this example, the state in which the substrate 8 is locked to the through hole 9 is ensured. Is devised so that.

[0003]

[Problems to be solved by the device]

 By the way, in the connector 6 as described above, in soldering the electric wire 1 to the substrate 8, first, the first step of crimping the terminal 3 to the electric wire conductor 2 of the electric wire 1 and the portion of the terminal 3 are connected to the connector 6. It requires a total of two steps, that is, a second step of inserting into the connector housing 7 and inserting the soldering portion 5 of the terminal 3 protruding from the housing 7 into the through hole 9 of the substrate 8 and soldering, thus reducing the manufacturing cost. It was soaring. Also, the electric wire 1 must be crimped to the terminal 3 in the first step, and it is impossible to retrofit the electric wire 1 after the connector 6 is mounted on the substrate 8. There was an inconvenience above. The present invention has been made in order to solve the above problems, does not require a crimping process of terminals, reduces the manufacturing cost by making the assembly process one process, and enables pre-attachment and post-attachment of electric wires. The purpose of the present invention is to provide a board-in connector with terminals that is easy to handle.

[0004]

[Means for Solving the Problems]

 The board-in connector with a terminal of the present invention comprises a pair of leaf springs, and an electric wire conductor holding portion for receiving an electric wire conductor provided at a rear end portion of the leaf spring and a board locking portion provided at a tip end portion of the leaf spring. The present invention is characterized by including a terminal having the terminal and a connector main body for fixing the board locking portion of the terminal by projecting from one end surface of the connector housing.

[0005]

[Action]

 In the board-in connector with a terminal of the present invention, the terminal having the board locking portion and the wire conductor holding portion is mounted in the connector housing of the main body, and the board locking portion is projected on the back side of the main body. By inserting this board locking part into the through hole of the board and immersing the tip of the terminal protruding from this through the solder bath, the solder capillarity causes the solder to rise up the inner wall surface of the terminal, and the wire conductor The wire conductor holding portion is soldered.

[0006]

【Example】

 Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view showing a board-in connector with terminals of the present invention and a method of using the same. In the figure, a connector housing 12 is formed in the connector body 11 of the board-in connector 10 with terminals, and the terminals 13 are inserted and fixed in the housing 12. The terminal 13 includes a pair of leaf springs 14 formed in an axially symmetrical shape. A board retaining portion 15 is formed at the tip of the terminal 13 by bending the leaf springs 14 inward with each other, and the board retaining portion 15 is tapered toward the tip. .. Further, at the rear end portion of the terminal 13, there is formed an electric wire conductor holding portion 16 having a substantially V shape for receiving the electric wire conductor. A square tube portion 17 is formed at a substantially central portion of the terminal 13 that connects the board locking portion 15 and the electric wire conductor sandwiching portion 16, and the square tube portion 17 is fixed in the connector housing 12. It has become.

Next, a method of soldering the electric wire 1 to the base plate by using the board-in connector 10 with a terminal having the above-described structure will be described. First, the board-in connector 10 with terminals is placed on the board 8, and the board locking portion 15 of the connector 10 which is projected from the connector housing 12 is inserted into the through hole 9 of the board 8. Next, the jacket of the end portion of the electric wire 1 is peeled off to expose the electric wire conductor 2 at the end portion, and the electric wire conductor 2 is inserted into the electric wire conductor holding portion 16 of the terminal 13. Next, when the tip portion of the terminal 13 protruding to the back surface side of the substrate 8 is dipped in the solder bus 18, the solder 19 rises up the inner wall surface of the terminal 13 by the capillary phenomenon as indicated by the arrow Y, and the wire conductor The wire conductor 2 and the terminal 13 are soldered to reach the holding portion 16.

According to the above method, the step of crimping the wire conductor 2 onto the terminal 13 as in the conventional case can be omitted, and the manufacturing cost can be reduced. Further, since the wire conductor 2 and the terminal 13 are directly bonded to each other, the number of connecting points is one, and the mechanical strength is also increased. Further, as shown in FIGS. 2 and 3, two methods can be adopted as a method of connecting the electric wire 1 to the substrate 8, and there is an advantage that it can be selected according to the application. That is, the method shown in FIG. 2 is a method of attaching the board-in connector 10 with a terminal to the end of the electric wire 1, and the method shown in FIG. 3 is that the board-in connector 10 with a terminal is previously attached to the board 8. This is a method in which the electric wire 1 is inserted and fixed to the terminal 13 in the connector 10 after the placement.

[0009]

[Effect of the device]

 As described above, according to the present invention, since the wire conductor can be directly soldered to the terminal housed in the connector housing, the step of crimping the terminal to the wire conductor is unnecessary, and one step can be omitted. Moreover, the manufacturing cost can be reduced. Further, since there is no connection point by crimping and only the connection point by soldering, the mechanical strength is increased, and the defective rate of the connection point is also reduced, so that the yield can be improved. Furthermore, it is possible to select from two methods of wire pre-attachment and post-attachment as required, which facilitates handling and reduces the size of the connector that houses the terminal because the crimping part of the terminal is unnecessary. It has an excellent effect that it is possible.

[Brief description of drawings]

FIG. 1 is a cross-sectional view illustrating a board-in connector with terminals of FIG. 1 and a method of using the board-in connector.

FIG. 2 is an explanatory diagram showing a method of attaching electric wires in advance.

FIG. 3 is an explanatory diagram showing a method of retrofitting an electric wire.

FIG. 4 is a perspective view of a conventional electric wire end portion.

FIG. 5 is a perspective view of a conventional connector housing.

[Explanation of symbols]

 1 Wire 2 Wire Conductor 8 Board 9 Through Hole 10 Board-in Connector with Terminal 11 Connector Body 12 Connector Housing 13 Terminal 14 Leaf Spring 15 Board Locking Part 16 Wire Conductor Clamping Part 17 Square Tube 18 Solder Bus

Claims (1)

[Scope of utility model registration request] 1. A terminal comprising a pair of leaf springs, which has an electric wire conductor holding portion for receiving an electric wire conductor provided at a rear end portion of the leaf spring, and a board locking portion provided at a tip end portion of the leaf spring, and A board-in connector with a terminal, comprising: a connector body for fixing the board locking portion of the terminal by projecting from one end surface of the connector housing.