JP3714889B2 - System connector for mobile communication equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a system connector structure that is compact in the structure from the input side to the output side of a connector in a power supply section of a system connector used in a mobile communication device, and is effective for improving connection reliability. About.
[0002]
[Prior art]
A mobile communication device such as a cellular phone generally has a built-in battery, and is directly connected by a charging terminal of the battery, an external connection terminal for connecting a cable during data communication, or a connector such as an AC adapter. An external connection terminal or the like is provided, and a system connector in which these functions are combined is widely used.
Conventionally, in this type of system connector, as shown in FIG. 6, a flat connector 101 for supplying power by connecting the connector to a resin housing 100 and a pad 102 for charging using a stand-type charging device. Are arranged in parallel, and soldering is performed on the printed circuit board by the terminals 103a of the respective contacts 103 by SMT (Surface Mount Technology).
Therefore, there is a technical problem that the contact is likely to warp or float due to heating during soldering, and there is a large variation in connection.There are cracks in the solder part due to load or drop impact when inserting or removing external connection terminals. Problems that are likely to occur are also pointed out.
Recently, the use of lead is becoming a problem due to environmental problems.
Furthermore, since the contact of the flat connector and the terminal of the pad are respectively connected to the printed circuit board, not only a large space is required in the lateral direction, but also common connection for circuit control in external terminal connection When it is necessary, it is necessary to cope with the arrangement setting on the printed circuit board.
In this way, the number of parts is large, and in order to meet the demand for downsizing of mobile communication devices, it has become difficult to press the contacts, and the assembly to the housing has been difficult.
[0003]
[Problems to be solved by the invention]
As shown above, the power supply unit of the system connector used in the mobile communication device has a pad unit connected to the stand-type charging device and a DC connection jack unit connected via an adapter. Therefore, a function for stably and reliably outputting the power input from the printed circuit board to the printed circuit board is required.
Accordingly, an object of the present invention is to provide a system connector power supply structure for mobile communication equipment with high connection reliability that satisfies these three functions with a simple and compact structure without using soldering.
[0005]
[Means for Solving the Problems]
The present invention provides a system connector in which an external connection portion formed in a housing is accommodated so as to be positioned on an end face of a mobile communication device, and a press-contact connection using an elastic force by a spring as a connection method to a printed circuit board. In order to ensure the spring force of the pressure connection means, the terminal thickness and width of the terminal are increased compared to the conventional method, and as a connection method for pads, DC connection jack plug pins, etc., one terminal slits (notches), the other terminal by employing a clamping connection method of injecting the thickness direction, which was aimed simplification of the terminal connection structure, the improvement of the compactness and the connection reliability, external the rear end of one of the first pad contact of the power supply pads provided in the connecting portion, and the plug pins connecting terminals rear end of the external connecting portions DC connection jack provided in The DC connection jack portion and the first sleeve spring are respectively clamped and connected to the rear end of the other second pad connection terminal via both ends of the second sleeve spring, and the plug pin connection terminal and the first Each sleeve spring was provided with a pressure spring portion to the printed circuit board.
[0006]
According to a second aspect of the present invention, the first sleeve spring and the second sleeve spring are each provided with a contact portion in the DC connection jack portion so that they can be connected in common to the DC plug.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a view of a system connector 1 according to the present invention as viewed from the external connection side, FIG. 2 (a) shows a view seen from the back of a housing 11, and FIG. 2 (b) shows a JJ cross section. FIG. 2 (c) shows a sectional view taken along the line KK, and FIG. 2 (d) shows a sectional view taken along the line AA.
On the external connection side of the housing 11, a DC connection jack portion 2 for inputting power via an adapter or the like, a first pad 3a for inputting power via a stand-type charging device, a second pad 3b, and other signals for inputting signals to the housing 11 A jack section 4 and the like are provided.
On the side surface of the housing, there are provided a plug pin connection terminal pressure contact spring portion 51 and a first sleeve spring pressure contact spring portion 71 as a printed circuit board connection portion that outputs power to the printed circuit board side.
[0008]
The connection structure in the housing will be described below with reference to FIG. 2 and FIGS. 3 to 5 which are exploded perspective views.
As shown in FIG. 3, the first pad connection terminal 3a and the second pad connection terminal 3b are provided from the external connection side of the housing 11 to the first pad connection terminal accommodation hole 13a and the second pad connection terminal accommodation hole 13b provided in the housing. Insert each one.
As shown in FIGS. 2 and 3, the DC plug contact portion 72 of the first sleeve spring is disposed on the side of the DC connection jack portion hole, and is inserted into the press contact spring portion receiving groove 171 provided on the printed circuit board side of the housing. The first sleeve spring 7 is inserted into the first sleeve spring accommodating chamber 17 from the rear side of the housing so that the one sleeve spring pressure contact spring portion 71 is arranged.
Next, similarly, the second sleeve spring 6 is inserted into the second sleeve spring accommodating chamber 16 from the rear side of the housing. At this time, as shown in FIG. 4, a clamping connection provided at one end of the second sleeve spring 6 is used. The portion (1) 61 is press-fitted into the second pad connection terminal cut portion 31b provided at the rear end of the second pad connection terminal 3b, and the pinching connection portion (2) 62 provided at the other end of the second sleeve spring. Is configured to be press-fitted and connected to a first sleeve spring notch 73 provided at the rear end of the first sleeve spring 7.
As shown in FIG. 4, when the pad connection terminal cut portion or the first sleeve cut portion has a double structure in which the terminal is bent, the connection reliability is further improved.
A DC plug contact portion 63 provided on the second sleeve spring is disposed on the side of the DC connection jack portion hole, and the first and second sleeve springs are connected in common by the first sleeve spring DC plug contact portion 72. It is possible.
[0009]
Next, as shown in FIGS. 3 and 5, the plug pin 52 of the plug pin connection terminal 5 faces the DC connection jack portion, and the pressure contact spring portion 51 to the printed circuit board is disposed in the pressure contact spring receiving groove 151 on the side of the housing. The plug pin connection terminal 5 is inserted from the back surface of the housing so that the plug pin connection terminal clamping connection portion 53 is press-fitted into the first pad connection terminal cutout portion 31a provided at the rear end of the first pad connection terminal 3a.
[0010]
As shown in FIGS. 2 and 3, the signal jack portion 4 is provided with signal connection terminals 41 to 45, which are each provided with a pressure contact spring portion, and can be connected to a printed circuit board.
[0011]
【The invention's effect】
According to the present invention, the second pad connection terminal 3b is connected to the first sleeve spring 1 via the second sleeve spring 6, and the first pad connection terminal 3a is connected to the plug pin. When power is supplied from either of the stands, it is possible to supply power from the pressure spring to the printed circuit board side, and the structure is simple and compact.
Further, the adoption of the pressure spring system not only eliminates the need for soldering to the printed circuit board, but also increases the reliability of connection to the printed circuit board.
Further, the notch portion provided at the rear end portion of the pad connection terminal and the first sleeve spring is press-fitted and sandwiched by the pinching connection portion provided at the other second sleeve spring and the plug pin connection terminal to be connected, The connection method between terminals is simple and compact, and it has high impact resistance and high connection reliability.
In addition, the simplified structure makes it possible to reduce the space to be incorporated into the end face of mobile communication devices, facilitate the pressing of terminals (contacts), and improve the ease of assembling each connection component to the system connector housing. To do.
[Brief description of the drawings]
FIG. 1 is a view of a system connector according to the present invention as viewed from an external connection side.
FIG. 2 shows a view from the rear side of the housing and a cross-sectional view of the main part.
FIG. 3 shows an exploded view of each terminal housing.
FIG. 4 shows a terminal connection method.
FIG. 5 shows a connected state of terminals.
FIG. 6 shows an example of a conventional system connector.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 System connector 11 Housing 16 2nd sleeve spring accommodating chamber 17 1st sleeve spring accommodating chamber 151 Plug pin connection terminal press-contact spring part accommodation groove 171 1st sleeve spring press-contact spring part accommodation groove 2 DC connection jack part 3a 1st pad (pad connection Terminal) 3b 2nd pad (pad connection terminal)
31a 1st pad connection terminal notch part 31b 2nd pad connection terminal notch part 4 Signal connection jack part 41, 42, 43, 44, 45 Signal connection terminal 5 Plug pin connection terminal 51 Plug pin press contact spring part 52 Plug pin 53 Plug pin connection terminal clamping pressure Connection part 6 Second sleeve spring 61 Second sleeve spring clamping connection part (1)
62 Second sleeve spring clamping connection (2)
63 Second sleeve spring DC plug contact portion 7 First sleeve spring 71 First sleeve spring pressure contact spring portion 72 First sleeve spring DC plug contact portion 73 First sleeve spring notch portion

Claims (2)

In the system connector accommodated so that the external connection portion formed in the housing is located on one end surface of the mobile communication device, the rear end of one first pad connection terminal of the power supply pad provided in the external connection portion Is connected to the rear end of the plug pin connection terminal of the DC connection jack portion provided in the external connection portion, and the rear end of the other second pad connection terminal is connected to the DC via the both ends of the second sleeve spring. A system connector for mobile communication equipment, characterized in that a jack portion and a first sleeve spring are respectively clamped and connected, and the plug pin connection terminal and the first sleeve spring are each provided with a pressure contact spring portion to a printed circuit board. . First sleeve spring and the second sleeve spring, system connector for mobile communications equipment according to claim 1, wherein it is in the common connectable to the DC plug.

Images