JPH11195466A - Connector for printed wiring board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for printed wiring board capable of significantly lessening a mounting area to the printed wiring board as surely conducting surface mounting so as to realize the miniaturizing of an apparatus by containing the lead portion of a connection terminals in a housing in a plane view. SOLUTION: This connector for printed wiring board is provided with a plate-like housing having an open window portion 2, and a connection terminal 3 fixed to the housing 1. The contact portion 3b formed on the connection terminal 3 is made so as to be elastically deformable in the housing thickness direction in the vicinity of the housing top face of the window portion 2, and the lead portion 3c of the connection terminal is provided inside the window portion in a plan view.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a connector for a printed wiring board used for realizing a connection between printed wiring boards or a connection between a printed wiring board and a SIM card or the like.

[0002]

2. Description of the Related Art Conventionally, as such a connector, for example, as shown in FIG. 6, a plate-shaped housing 51 having a storage hole 52 opened, and connection terminals 53 arranged in the storage hole 52, respectively. A device provided with the device is known (for example, see Japanese Patent Application Laid-Open No. 8-321353). The connection terminal 53 has an intermediate portion 53a fixed to the housing portion at the outer edge of the storage hole, an inner end of the connection terminal 53 curved in a substantially rectangular shape in the storage hole to form a contact portion 53b, and an outer end formed by the outer end. The lead portion 53c is formed to extend outside the housing 51. This connector is surface-mounted on the printed wiring board 54 at the lead portion 53c, and the contact portion 53b is elastically deformed in the housing thickness direction (vertical direction in FIG. 6 (b)), so that the mating printed wiring board or It comes into pressure contact with the contact portion of the SIM card or the like 55, and thereby mechanical connection and electrical connection between the printed wiring boards (hereinafter, referred to as a board-to-board) or between the printed wiring board and the SIM card (hereinafter, referred to as a board-to-card). To achieve a proper connection. The SIM card and the like here include a SIM card, a PC card, and an IC card.

[0003]

Devices that use such connectors to perform board-to-board or board-to-card connections are required to be further miniaturized, and in particular to mobile phones and digital recording cameras. Due to the nature of portable devices exemplified by VTRs and the like, miniaturization is strongly demanded.

[0004] An object of the present invention is to fit a lead portion of a connection terminal into a housing in a plan view,
An object of the present invention is to provide a connector for a printed wiring board which can reduce the mounting area on a printed wiring board significantly while reliably performing surface mounting, thereby realizing miniaturization of a device.

[0005]

In order to achieve the above object, a connector for a printed wiring board according to the present invention is provided with a plate-like housing having an open window, and disposed in correspondence with the window and fixed to the housing. The contact portion formed on the connection terminal is configured to be elastically deformable in the thickness direction of the housing near the upper surface of the housing of the window portion, and the lead portion of the connection terminal has a flat surface. It is characterized by being provided in the above-mentioned window part visually.

This connector is mounted on the surface of the printed wiring board at the lead portion, and the contact portion is elastically deformed in the thickness direction of the housing, so that the printed wiring board or SI on the other side is connected.
It presses against a contact portion of an M card or the like, thereby making a mechanical connection and an electrical connection in a board-to-board or board-to-card manner. In this case, since the lead portion of the connection terminal is provided in the window portion in plan view, the area occupied by the printed wiring board is reduced, and the mounting area is significantly reduced, contributing to downsizing of the device. . In addition, since the lead portion is exposed in the window portion in plan view, the lead portion is easily heated, for example, when performing reflow soldering, and the surface mounting is reliably performed.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a connector for a printed wiring board according to a first embodiment. This connector is
It connects a printed wiring board P built in the mobile phone to a GSM standard SIM card C which is inserted into the mobile phone and stores personal data, for example, and can be said to be a connector for board-to-card connection.

In these figures, reference numeral 1 denotes a plate-like housing formed of an insulating material such as a heat-resistant resin.
This housing 1 has a total of six windows 2 in two rows and three columns.
Is open. In each of the window portions 2, connection terminals 3 made of, for example, a copper alloy and subjected to gold plating or the like as necessary are arranged. The connection terminal 3 is of a so-called bellows type, and is fixed to the housing 1 by embedding an outer end 3a in a housing portion 1a at an outer edge of the window, and has an inner end substantially upward in the window 2. U
The contact portion 3b is formed by bending into a letter shape and then further bending substantially in the shape of a letter near the upper surface of the housing. With this configuration, the contact portion 3b is elastically deformed in the housing thickness direction (vertical direction in FIG. 1) near the upper surface of the housing of the window portion 2 by elastic deformation of the cantilever portion from the housing portion 1a and the U-shaped curved portion. It can be transformed.

Each of the connection terminals 3 is provided with a lead portion 3c. As shown in FIG. 2, the lead portion 3c is provided in the window portion 2 in plan view. More specifically, the lead portion 3c is
It branches off from the fixed end 3a of the connection terminal 3 so as to be shifted laterally with respect to the contact portion 3b in plan view, and as shown in FIG.
By branching and going downward, when the connector is placed on the printed wiring board, it is substantially flush with the bottom surface of the housing 1 and approaches or contacts the printed wiring board P. The lead portion 3c is a so-called gull wing type, but the shape of the lead portion of the present invention is not limited to this, and may be a so-called butt lead type, J-bend type, or the like. As shown in FIG. 2, among the connection terminals 3 having two rows and three columns, the contact portions 3b and 3b in each column are arranged so as to face each other on the same line, and the lead portion 3c is provided in the right row. Is located on the front side of the contact portion 3b, and in the left row, the lead portion 3c is located on the rear side of the contact portion 3b. This arrangement is preferable because the pressing force from the SIM card C received by the six contact portions 3b and the reaction force from the printed wiring board P received by the lead portions 3c are balanced. Whether or not to arrange is optional. Reference numerals 4 and 4 denote protrusions provided on the bottom surface of the housing 1 as necessary, and are positioned by fitting into positioning holes of the printed wiring board P.

The connector is surface-mounted on a printed wiring board P built in a mobile phone at a lead portion 3c,
The contact portion 3b elastically deforms in the thickness direction of the housing and presses against the contact portion of the SIM card C inserted into the mobile phone, thereby performing mechanical connection and electrical connection in a board-to-board or board-to-card manner. Here, SIM card C
For example, when the SIM card C is inserted into a slot formed in the housing of the mobile phone, the SIM card C is opposed to the printed wiring board P in a substantially parallel relationship. The vicinity of the contact portion of the printed wiring board P is exposed by flipping up the lid of the mobile phone housing, and the SIM card C is applied to the exposed portion, and the SIM card C is substantially parallel to the printed wiring board P by closing the lid. Examples include a type that is arranged to face each other in a relation. In that case, the former type uses SI
The M card C hits the contact portion 3b of the connector and slides while pushing it into the window portion 2. When the M card C reaches the insertion completed position, the contact portion of the SIM card C presses against the contact portion 3b of the connector. In the latter type, the contact portion of the SIM card C is pressed against the contact portion 3b of the connector by the closing force of the lid while the contact portion of the SIM card C is in contact with the contact portion 3b of the connector.

Accordingly, in the first embodiment, since the lead portion 3c of the connection terminal 3 is provided in the window portion 2 in plan view, the area occupied by the printed wiring board P is reduced, and the mounting area is reduced. Is greatly reduced, and the size of the mobile phone can be reduced. Further, since the lead portion 3c is exposed in the window portion 2 in a plan view, the lead portion 3c is easily heated, for example, when performing reflow soldering, and the surface mounting is reliably performed. In particular, when the lead portion 3c branches off from the fixed end 3a of the connection terminal 3 so as to be shifted laterally with respect to the contact portion 3b in plan view as in this embodiment, heat from above is directly transmitted to the vicinity of the lead portion 3c. In addition, since it is easy to hit efficiently, the heating of the lead portion 3c is further promoted, and the surface mounting is more reliably performed.

FIG. 5 shows a second embodiment, which differs from the first embodiment only in the shape near the contact portion of the connection terminal. That is, in this embodiment, the outer end 3 of the connection terminal 3
a is fixed to the housing 1 by being fixed to the housing portion 1a at the outer edge of the window, and the inner end is bent substantially in the shape of a letter near the upper surface of the housing in the window 2 to form the contact portion 3b. ing. With this configuration, the contact portion 3b is formed by elastic deformation of the cantilever portion from the housing portion 1a.
The window 2 can be elastically deformed in the housing thickness direction (the vertical direction in FIG. 5) near the upper surface of the housing. Other configurations, operations, and effects are completely the same as those of the first embodiment, and thus the same reference numerals are given and the description of the first embodiment is quoted as it is.

In the above embodiment, a total of six windows and connection terminals are provided in two rows and three columns, but this does not limit the number and arrangement of the windows and connection terminals of the present invention. Further, the configuration near the contact portion of the connection terminal is not limited to the type exemplified in each of the above embodiments, and the contact portion is configured to be elastically deformable in the housing thickness direction near the housing upper surface of the window portion. If it is, the present invention can be applied. Further, in the above embodiment, the outer end 3a of the connection terminal 3 is exemplified by a connector in which the outer end 3a is embedded in the housing portion 1a at the outer edge of the window portion. The present invention is also applicable to a connector in which the upper surface of 3a is joined to the lower surface of the housing portion 1a. Further, in the above-described embodiment, the board-to-card connection is exemplified by the printed wiring board P and the SIM card C in the mobile phone. However, the present invention is widely used for the board-to-board or board-to-card connection in various devices. Can be
Cards in that case include not only SIM cards but also PC cards, IC cards, and the like. In addition, the connection partner includes a battery pack in addition to the printed wiring board and the SIM card. In short, any medium that requires mechanical and electrical connection to the printed wiring board at the contact portion is required. included.

[0014]

As described above, in the printed wiring board connector of the present invention, the lead portion of the connection terminal is provided in the housing window portion in plan view, so that the connection of the board to the board or the board to the card is provided. In this case, since the mounting area on the printed wiring board can be significantly reduced while reliably mounting the connector on the printed wiring board, the size of the device can be reduced. This is extremely effective in promoting the miniaturization of portable devices exemplified by a body VTR.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line AA of the first embodiment shown in FIG.

FIG. 2 is a plan view of the first embodiment.

FIG. 3 is a front view of the first embodiment.

FIG. 4 is a left side view of the first embodiment.

FIG. 5 is a diagram corresponding to FIG. 1 of a second embodiment.

6A and 6B show a conventional example, in which FIG. 6A is a plan view, and FIG.

[Explanation of symbols]

 P Printed wiring board C SIM card (SIM card, etc.) 1 Housing 2 Window 3 Connection terminal 3a Fixed end (outer end) 3b Contact 3c Lead

Claims (1)

[Claims] An electronic apparatus includes: a plate-shaped housing having an open window; and a connection terminal arranged corresponding to the window and fixed to the housing.
Printed wiring characterized in that it is configured to be elastically deformable in the thickness direction of the housing near the upper surface of the housing in the window portion, and that the lead portion of the connection terminal is provided in the window portion in plan view. Board connector.