JPH0616418Y2 - connector - Google Patents

Description

Detailed Description of the Invention A. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receptacle, that is, a female connector, and more particularly, to a female connector having a flux penetration preventing means for preventing the flux from entering a contact portion during a soldering process.

B. Conventional technology Conventionally, when soldering a female connector to a circuit board,
The solder flux penetrates into the contact portion of the female connector or scatters through the opening provided in the insulating housing for inserting the pin terminal for mating connection with the female connector, that is, the male terminal. The following four methods are known to prevent this. The first method is to mask a temporary assembly of a female connector and a circuit board in an opening of a circuit board provided for inserting a male terminal before placing the assembly in an automatic soldering process such as a solder dipping process.・ A method of attaching a tape, then directing it to the solder dipping process, and peeling off this tape after the soldering is completed. In the second method, when manufacturing an insulating housing of a connector, a film-like flux intrusion prevention film is integrally molded so as to close an opening through which a male connector is inserted, and the connector and the circuit board are soldered. After the completion, it is a method in which this film is torn off by a male terminal inserted into the female connector. As shown in FIG. 4, the third method is a method of providing a single-opening door 43 in the opening 42 through which the male terminal 45 is inserted when the insulating housing 41 of the connector is manufactured. The fourth method is a method of preventing solder flux from entering and scattering by careful manual work.

C. Problems to be Solved by the Invention The above-mentioned first conventional method is the intrusion of the solder flux,
Although it can completely solve the problem of scattering, it requires additional manual work such as attaching and removing masking tape, which increases cost and is inefficient. The second method covers the weaknesses of the first method, but when molding the housing, it is difficult to uniformly control the thin film to a predetermined thickness. There is a problem that the insertion force of the male connector becomes considerably large when it is inserted. Although the third method covers the weaknesses of the above-mentioned method, as shown in FIG. 4, when the male terminal is inserted, the flux and dust attached to the one-sided door 43 are not attached to the connecting surface of the male terminal 45. To the contact surface of the female connector 46 as a result. The fourth method is not efficient and, of course, runs counter to automation.

Therefore, the object of the present invention is to solve the problems of scattering and intrusion of solder flux, and moreover, it is suitable for automation of soldering,
It is to provide a female connector in which insertion of a male terminal is easy.

D. Means for Solving Problems The present invention relates to a female connector having a flux penetration preventing means for preventing the flux from entering a contact portion during a soldering process, when a male terminal passes through the flux penetration preventing means. A surface of the male terminal that is different from the surface of the male terminal that contacts the flux intrusion prevention means,
The contact surface of the female connector is arranged so as to form an electrical connection with the contact surface of the female connector, that is, with respect to the surface of the male terminal at which the male terminal does not come into contact with the flux intrusion preventing means. The connector is characterized in that the contact surface of the female connector is arranged so as to contact the female connector.

E. Embodiment Referring to FIG. 1A showing an embodiment of the present invention, a female connector 10 integrally pressed from a sheet metal material is
A pair of soldering legs 1 extending downward from the base 11.
2, 12 'and a pair of upwardly extending sidewalls 13, 13'. As can be seen from the cross-sectional view of the connector 10 shown in FIG. 1B, an opening 16 for receiving a male terminal is provided in the substantially center of the base 11. Side wall 13, 13 '
The elongated strips 14 and 14 'extending from the sides of the sheet are bent inward and contact portions 15 and 1 provided at the tips thereof.
The 5'are opposed to each other to form a pair of contact surfaces of the female connector. Reference numeral 29 indicates a square male terminal inserted into the connector for making an electrical connection with the connector 10.

FIG. 2 is a plan view in which the connector 20 in which a plurality of female connectors 10 are incorporated in an insulator housing 21 is partially cut away, and a male terminal 29 is inserted to make a pair of female connectors 10. It shows a mode in which an electrical connection is made with the contact surface. FIG. 3 is a connector 1 of the connector 20 shown in FIG.
0 for soldering with a conductive pattern (not shown) of the circuit board 39 to fix the connector 20 to the circuit board.
Insert the soldering legs 12, 12 'into 2, 33,
It is a figure showing the state where it was bent, and this state shows the state before being directed to the soldering step.
Further, FIG. 3 shows a square male terminal 29 connected to the connector 20 after soldering on the circuit board, and the plurality of male terminals 29 are provided on the circuit board. It is inserted into each corresponding opening 38 and is electrically connected to the connector 20.

As can be seen from FIGS. 1A and 3, the solder
Connector 2 assembled on a circuit board 39 directed to an automated soldering step such as a dip process
No. 0 is a door type flux intrusion prevention means having a hinge portion that bends in a direction orthogonal to the side walls 13 and 13 'of the female connector in order to prevent invasion of the flux through the opening 38 provided in the circuit board. It is provided. The door-type flux intrusion prevention means of the connector 20 shown in FIGS. 1A and 3 is
Housing 2 as two openable doors 31, 31 '
It is provided so as to be located at a lower portion of 1 and between the openings 38 and 16. As a result, the direction of the bending axis of the hinge portion provided on the door of the flux intrusion preventing means and the plane including the contact surface of the female connector 10 are arranged so as to be orthogonal to each other. Although the intrusion prevention means of the illustrated embodiment is shown as a type of two double-opening doors, it may be a single-sided open door type, an openable / closable type, or a hinge part that is easily broken. The door type may be a door type, and the square male terminal 29 may have a door 31,
It should be noted that the contact surface of the female connector 10 is arranged to be in contact with the surface 27 of the female terminal 10 which is perpendicular to the surface 28 of the male terminal 31 '.

As described above, the female connector of the present invention, when assembled in the state shown in FIG. 3, is directed to the automatic soldering process, such as the solder dipping process, by the doors 31 and 31 '. Is scattered on the contact surface of the female connector or prevents it from entering, and after soldering, the door, that is, the solder flux attached to the flux entry preventing means, other dust, before inserting the male terminal, Since it is not brought to the contact surface of the female connector, it is possible to prevent the electrical connection of the connector from becoming defective.

In the above embodiment, the rectangular male terminal is illustrated and described, but the present invention can be applied to a male terminal having a round shape, a polygonal shape, or any other cross-sectional shape within the scope of the technical idea of the present invention. However, it will be apparent that the contact portions 15, 15 'of the female terminal can be deformed into various other shapes. Further, the contact portion of the female connector 10 of the present invention is located at a position far away from the opening 38 of the circuit board and is in a suspended state. Can be prevented considerably.

F. Effect of the Invention The present invention provides a female type multi-pole connector which is easy to insert and remove without causing a problem of connection failure of the connector due to solder flux in the automatic soldering process.

[Brief description of drawings]

FIG. 1A is a perspective view of an embodiment of the female connector of the present invention,
FIG. B is a cross-sectional view of the connector shown in FIG. 1A taken along the center in the longitudinal direction, and FIG. 2 is a partial cut-away view of a connector incorporating a plurality of female connectors of the present invention in a housing. FIG. 3 is a plan view, FIG. 3 is a side view in which a part of the connector shown in FIG. 2 is cut off, and FIG. 4 illustrates a conventional connector provided with a one-way door for preventing intrusion of solder flux. It is sectional drawing for doing. 10 ... Female connector, 11 ... Connector base, 12, 1
2 '... soldering leg, 13, 13' ... side wall, 1
5, 15 '... Contact part, 16, 38 ... Open hole, 20 ...
Female connector, 21 ... Housing, 29 ... Male terminal,
31, 31 '... Fracks intrusion prevention door, 39 ... Circuit board.

Claims (1)

[Scope of utility model registration request] 1. A male connector in which a female terminal including a contact portion having a contact surface for making electrical contact with a male terminal inserted into an opening of a printed circuit board is incorporated in an insulator housing. In order to prevent the flux from entering the contact part of the female connector in the soldering process,
In a female connector provided with a flux intrusion prevention means having a door closed during a soldering process, the flux intrusion prevention means is provided between the opening and the contact portion of the circuit board, and A hinge part that bends to push open the door by the inserted male terminal, and a direction of a bending axis of the hinge part is orthogonal to a plane including the contact surface of the female connector. A connector arranged in a relationship.