JP3006571U - Substrate connection mechanism for surface mount type electrical connector - Google Patents

Abstract

(57) [Abstract] [Purpose] To securely support the connector on the printed circuit board to increase the strength and improve the connection reliability of the connector. [Structure] Mounting portions 21 and 22 to the printed circuit board 4 extending from the side surface of the housing body 2 are provided, and the mounting portions 21 and 22 are stepped portions on a part of the side surface of the housing body 2. The printed circuit board 4 has a mounting portion 4 that supports the mounting portions 21 and 22 that are positioned with the step portions 23 and 24 of the mounting portions 21 and 22.
2 and 43 are provided, and the mounting portions 42 and 43 have substantially the same width as the width of the mounting portions 21 and 22 of the housing main body 2, and are arranged from the edge 41 of the printed circuit board 4 to the housing main body 2. Is formed so as to extend longer than the position of the center of gravity of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a board connecting mechanism of a connector, and more particularly to a board connecting mechanism of a surface mount type electric connector mounted on the surface of a printed board.

[0002]

[Prior art]

 2. Description of the Related Art In recent years, with the miniaturization and diversification of electronic devices, mounting of various electric components on a printed circuit board is required to have high density and automatic mounting. In order to meet the demand, a board connection mechanism for a surface mount type electric connector has been proposed in which the electric connector is mounted on a conductive surface provided on an edge of a printed circuit board. This type of board connection mechanism uses, for example, a jig to solder the connection part of the contact of the electrical connector to the conductive surface provided on the edge of the printed circuit board by a reflow process that is automatic mounting. is there. The jig is provided with a printed circuit board holding recess for positioning and holding the printed circuit board, and the electrical connector is so placed that the contact part of the contact is located on the conductive surface in communication with the printed circuit board holding recess. Is provided to hold the electric connector. According to such a board connection mechanism of the surface mount type electric connector, the printed circuit board is arranged in the print board holding recess provided in the jig, the electric connector is arranged in the connector holding recess, and the contact is connected. Parts are soldered to the conductive surface by reflow treatment.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional connector mounting device, the connector and the printed board are fixed to each other only by soldering the conductive surface of the printed circuit board and the connection portion of the connector. After mounting on the printed circuit board, the connector is supported only by the soldered part, so the mounting strength is low and the soldered part is easily peeled off during transportation, resulting in solder failure or short circuit and the connector connection reliability is high. There was a problem such as a decline.

Furthermore, since the printed circuit board and the connector are set on the jig, and then reflow processing is performed for soldering, not only the number of steps is increased, but also the jig is required, resulting in high cost. In addition, there is a problem that the jig is deformed and becomes defective, and the number of steps for cleaning the jig increases.

The present invention has been made in view of the above circumstances, and the connector can be reliably supported on the printed circuit board, and the solder portion of the lead portion may peel off during soldering or the like to cause poor solder or short circuit. It is an object of the present invention to provide a connector mounting device that improves the connector connection reliability.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a surface mount type electrical connector in which a contact portion of a contact disposed on a housing body is in contact with a conductive surface provided on an edge of a printed circuit board for electrical connection. In the board connection mechanism, the side surface of the housing main body is provided with a mounting portion for extending to the printed circuit board, and the mounting portion is formed with a step portion on a part of the side surface of the housing main body. The printed circuit board is provided with a mounting portion that supports the mounting portion that is aligned with the step portion of the mounting portion, and the mounting portion has substantially the same width as the width of the mounting portion of the housing body. It is characterized in that it is formed so as to extend from the edge of the printed board longer than the center of gravity of the housing body.

[0007]

[Action]

 The board connection mechanism of the surface mount type electrical connector of the present invention is such that the mounting part, which extends from the side surface of the housing body to the printed circuit board, is mounted on the mounting part provided on the printed circuit board, and is mounted on the conductive surface of the printed circuit board. When the connector connection parts are aligned and positioned and the reflow process is performed, the solder is surely soldered to the conductive surface, which increases the strength even after mounting and improves the connection reliability of the connector.

[0008]

【Example】

 An embodiment of a connector mounting device of the present invention will be described below with reference to the drawings. 1 is a perspective view showing the connector before being mounted on a printed circuit board, FIG. 2 is a front view after mounting, and FIG. 3 is a side view thereof. Reference numeral 1 denotes a connector, and this connector 1 has mounting portions 21 and 22 formed on the side surface of a housing body 2 so as to extend therefrom. The mounting portions 21 and 22 are formed with step portions 23 and 24 on a part of the side surface of the housing body 2, and since this connector 1 is a high density multi-pole surface mount type, a large number of parts are provided inside the housing body 2. The contactor 3 is arranged and the connecting portion 31 is led out to the outside.

On the other hand, the printed circuit board 4 on which the connector 1 is mounted is provided with a conductive surface 5 at its edge 41. The printed circuit board 4 has the mounting portions 42 and 43 formed integrally on both sides of the edge 41. The mounting portions 42 and 43 formed on both sides are formed at the same time when the printed circuit board 4 is molded, and have substantially the same width as the mounting portions 21 and 22 of the housing body 2. It has a width and is the minimum size necessary. By mounting the mounting portions 42 and 43 in the longitudinal direction of the printed circuit board 4 to be longer than the center of gravity of the housing body 2 of the connector 1, the mounting portions 21 and 22 can be stably mounted on the mounting portions 42 and 43. And be supported.

When mounting the connector 1 configured as described above on the printed circuit board 4, first, the housing body 2 of the connector 1 is mounted on the mounting portions 42 and 43 formed on both sides of the edge 41 of the printed circuit board 4. When the mounting portions 21 and 22 formed by the step portions 23 and 24 are placed, the mounting portions 21 and 22 on both sides of the connector 1 are securely supported and placed on the mounting portions 42 and 43 of the printed circuit board 4. It At this time, when the connection portion 31 of the connector 1 is aligned and positioned on the conductive surface 5 formed on the surface of the printed circuit board 4 and the reflow process is performed, the connection portion 31 is surely soldered on the conductive surface 5 and soldered. The housing body 2 is reliably supported by the mounting portions 42 and 43 even after attachment.

[0011]

[Effect of device]

 As described above, the board connection mechanism of the surface mount type electrical connector of the present invention is provided with the mounting portion to the printed board extending from the side surface of the housing body, and the mounting portion is the housing. The stepped portion is formed on a part of the side surface of the main body, and the printed circuit board is provided with a mounting portion that supports the mounting portion that is aligned with the stepped portion of the mounting portion. The width of the mounting part of the main body is substantially the same as that of the mounting part of the main body, and it is formed to extend from the edge of the printed circuit board longer than the center of gravity of the housing main body. Since it is reliably positioned on the printed circuit board and is reliably supported, the strength is increased even after the connector is mounted, the connection reliability of the connector is improved, and the connection part is used at the time of edge transportation. of The peeled parts do not peel off to cause solder failure or short circuit, and the connection reliability of the connector can be greatly improved, which is particularly effective for multi-pole high-density surface mount connectors, which in turn reduces the size of the printed circuit board. Enables high-density mounting. However, unlike the conventional method, no jig is used, so the number of assembly steps and cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a connector mounting device according to the present invention before mounting.

FIG. 2 is a front view showing a state after mounting.

FIG. 3 is a side view showing a state after mounting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 connector 2 housing body 21 mounting portion 22 mounting portion 23 step portion 24 step portion 3 contactor 31 connection portion 4 printed board 41 edge 42 mounting portion 43 mounting portion 5 conductive surface

Claims (1)

[Scope of utility model registration request] 1. A board connection mechanism of a surface mount type electrical connector, wherein a connection part of a contact arranged on a housing body is in contact with a conductive surface provided on an end edge of a printed circuit board for electrical connection. An attachment portion for extending to the printed circuit board is provided on a side surface of the main body, and the attachment portion is formed with a step on a part of the side surface of the housing body. A mounting portion for supporting the mounting portion that is positioned with the step portion of the housing portion is provided, and the mounting portion has substantially the same width as the width of the mounting portion of the housing body, and the edge of the printed circuit board is provided. Is formed so as to extend from the center of the housing to a position longer than the center of gravity of the housing body.