JP2004158323A - Inter-substrate connecting connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To create a thin inter-substrate connecting connector whose thickness is around 1 mm. <P>SOLUTION: This connector is composed of a plug 5, in which terminals composed of prescribed numbers of conductive metals are installed in rows lengthwise so that they are parallel to each other in a sheet of a synthetic resin-made thin substrate 2 and in which a fitting groove to be fitted in appropriate positions when the plug is moved lengthwise in parallel with a terminal 3 is provided, and composed of a receptacle 9, in which cantilever terminals 12, composed of the same numbers of elastic metal plates as those on the plug side on the sheet of the synthetic resin-made thin substrate, are installed in rows so as to overhang lengthwise and toward the plug side, and in which a locking piece with a hook overhanging lengthwise at appropriate positions on this substrate is provided. On the fitting side of the rear face of the substrate of the plug, the terminals installed in rows are in bored state so as to be exposed toward the outer face on the bottom part of the groove among many furrow state protrusions. As for the cantilever type terminals, they are installed in rows so that the same numbers of terminals overhang one another out of a frame body on the front and back sides of the substrates non-continuously. Furthermore, fitting grooves are provided, which are fitted when the plug moves in parallel with the terminals to the bored part of the plug side structure. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an ultra-thin plug and a receptacle-to-substrate connector for an electronic device and an electric device, wherein the distance between substrates is about 1 mm.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a board-to-board connector of an electronic device has an L-shaped or U-shaped terminal provided with a hook at a tip from a plug side, extending perpendicularly to a fitting direction, and fitting with a hooked terminal of a corresponding receptacle. And a connection portion. In this configuration, when each terminal is fitted, it has a spring property so as to get over the hook protrusion on the other side, and is elastically deformed and fitted and connected in a cantilever manner. In recent years, in a thin board-to-board connector, for example, as in the connectors described in JP-A-5-275147 and JP-A-11-329636, the terminal portions are in pressure contact with contacts to maintain electrical connection. At the same time, the connection between the substrates is firmly fitted between the substrates by ridges and engaging holes or slots extending vertically inward from each other by the substrate itself or other elements.
[0003]
[Prior art documents]
[Reference 1] JP-A-5-275147 [Reference 2] JP-A-11-329636
[Problems to be solved by the invention]
However, in the case of a structure such as the above-described board-to-board connection connector, when trying to form an ultra-thin plug and receptacle of about 1 mm between the boards, the terminals become very short, and even when trying to hook-fit each other, the length becomes too long. However, it was not possible to provide sufficient resilience due to the short length, and there was an inconvenience that it could not withstand re-use due to plastic deformation. In addition, if the hook of the cantilever terminal is reduced according to the length between the substrates, the connection maintenance after fitting is insufficient, and the joint portion becomes poorly contacted due to dirt, bent, or broken. , Causing electrical connection troubles. As described above, when a certain design limit is exceeded, the mechanical and electrical functions of the connector are immediately impaired.
[0005]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned drawbacks and to provide an inter-board connector having stable mechanical and electrical functions despite being ultra-thin. For this purpose, the inter-board connector of the present invention has a structure in which terminals made of a required number of conductive metals are arranged in a vertical direction on a single thin synthetic resin substrate so as to be parallel to each other, and the terminals are arranged at appropriate positions on the substrate. A plug provided with a fitting groove to be fitted when moving in the vertical direction parallel to a plug, and a cantilevered terminal made of the same number of elastic metal plates as the plug side on a single thin synthetic resin board in the vertical direction. And a receptacle provided with a locking piece with a hook protruding in the vertical direction at an appropriate position on the board, and the plug and the receptacle are fitted when the plug and the receptacle are fitted. Are connected to each other, and when the plug is further slid in the vertical direction, the receptacle-side engaging piece is fitted and locked in the plug-side fitting groove.
[0006]
The board-to-board connector of the present invention is arranged such that the row terminals are hollowed out at the bottom of the many ridge-shaped protrusion grooves on the fitting side of the plug so as to be exposed to the outer surface. Fitting grooves are provided in place to fit when moving in the vertical direction parallel to the terminals. The cantilevered terminals on the receptacle side are arranged in a row so that the same number of terminals project from the frame bodies on both sides of the substrate so as to face each other, and both are discontinuous.
[0007]
In the inter-board connector according to the present invention, since the terminals and the engaging members are substantially accommodated in the inner hollow portion or the inner hollow portion of the substrate, reliable electric connection and reliable fitting and connection between the plug and the receptacle are achieved. An ultra-thin inter-substrate connector having a thickness of about 1 mm can be obtained even when both substrates are superposed, which enables repeated use.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1 and 2 show sketches of the front and back surfaces of the inter-board connector according to the present invention in which the plug and the receptacle are fitted together, and FIGS. 3 and 4 show sketches of the front and back surfaces of the plug. FIG. 5 shows each terminal on the plug side exposed and exposed between a number of grooves between the ridge-shaped protrusions provided on the fitting side of the plug. FIGS. 6 and 7 show sketches of the front and back surfaces of the receptacle, and FIG. 8 shows the state of the tip of the cantilevered terminal on the receptacle side in the YY section of FIG. For comparison with the present invention, conventional thick plugs are shown in FIGS.
[0009]
In the inter-board connector 1 of the present invention, a required number of terminals 3 made of a conductive metal are vertically arranged on a single synthetic resin thin substrate 2 so as to be parallel to each other, and terminals are provided at appropriate positions on the substrate. When moving in the vertical direction in parallel (moving direction arrow 4), the same number of plugs 5 as the plugs provided on the plug 5 provided with the fitting groove to be fitted with the locking piece to be described later, A receptacle in which cantilevered terminals 7 made of an elastic metal plate are arranged in a row so as to extend in the vertical direction and protrude toward the plug side, and provided with locking pieces 8 with hooks that protrude in the vertical direction at appropriate positions on the substrate 6. 9 is provided.
[0010]
As shown in FIGS. 4 and 5, on the fitting side of the plug 5 of the connector 1, the row terminals 3 are provided at the bottom of the groove 11 between the many ridge-shaped protrusions 10 so as to be exposed to the outer surface. It is in a hollow state.
[0011]
The cantilevered terminals 12 of the receptacle 9 are arranged in a row in a discontinuous state so that the same number of terminals protrude from the frame on the front and rear sides of the substrate, facing each other. In addition, a fitting groove 13 for fitting when moving in parallel with the terminal is provided in a hollow portion of the substrate on the plug 5 side, and a locking piece 8 with a hook projecting in the same direction (longitudinal direction) in a proper position on the receptacle 9 side substrate. Provide.
[0012]
As shown in FIGS. 6 to 8, the plug 5 and the receptacle 9 are overlapped, and the cantilevered terminals 12 on the receptacle side are extended from the frame on both sides of the substrate 6 so that the same number of terminals face each other. Each terminal 12 on the receptacle side is introduced between the fitting side of the board on the plug side, that is, between the grooves between the many ridge-shaped protrusions 10 provided on the board on the plug side, and the plug side exposed on the bottom portion is provided. Are elastically connected to the surface of each terminal 3. After that, the plug-side substrate is moved in parallel with the terminal row with respect to the receptacle-side substrate, and even when the plug-side fitting groove is fitted and latched on the receptacle-side hook, the bending attached to the tip of the receptacle-side terminal is also performed. Since the terminal end 14 has the receptacle-side engaging piece fitted and engaged in the plug-side engaging groove, the curved terminal end 14 provided at the tip of the receptacle-side terminal has the terminal 3 at the plug-side groove bottom. Connected to the surface to achieve a stable electrical connection. In this case, the cantilevered terminal of the receptacle 9 acts to push up the plug 5. On the other hand, when the locking piece 8 on the receptacle side is engaged with the fitting groove 13 on the plug side, only the vertical movement of the plug is performed. However, it is also configured to prevent the plug from being separated from the receptacle.
[0013]
【The invention's effect】
Since the present invention is configured as described above, the plug and the receptacle are fitted to each other, and the cantilevered terminals on the receptacle side are made to protrude from the frame of the board in a cantilevered manner. The terminal on the side is introduced between the grooves between the ridge-shaped protrusions provided on the mating side of the board on the plug side, that is, on the mating side on the plug side, and on the surface of each terminal on the plug side exposed at the bottom. It is connected with elasticity. Thereafter, the plug-side board is moved in the vertical direction, that is, parallel to the terminal row with respect to the receptacle-side board, and the hook-side locking piece on the receptacle side is fitted and locked in the plug-side fitting groove. Is securely connected.
In particular, the curved end provided at the tip of the receptacle-side terminal is connected to the terminal surface at the bottom of the groove between the ridge-shaped protrusions on the plug side, and in this case, the cantilevered terminal of the receptacle acts to push up the plug, On the other hand, when the engaging piece on the receptacle side is engaged with the fitting groove on the plug side, not only the vertical movement of the plug but also the separation between the plug and the receptacle is prevented, so that the plug and the receptacle can be separated. The connection will be secure and stable.
Since the fitting and locking are relatively simple, the plug and the receptacle are easily detached from each other when pressed in a reverse direction with a strong force, and can withstand repeated use.
[Brief description of the drawings]
FIG. 1 is a plan view of a surface of a connector of the present invention in a state where a plug and a receptacle are fitted.
FIG. 2 is a perspective view of the back surface of the connector of the present invention in a state where the plug and the receptacle are fitted.
FIG. 3 shows a sketch of the surface of the plug of the connector shown in FIG. 1;
FIG. 4 shows a sketch of the back surface of the plug of the connector shown in FIG.
5 is a partially enlarged cross-sectional view taken along line XX of FIG.
FIG. 6 shows a sketch of the surface of the receptacle of the connector shown in FIG. 2;
FIG. 7 shows a sketch of the back of the receptacle of the connector shown in FIG. 2;
8 is a partially enlarged cross-sectional view taken along line YY of FIG. 7;
FIG. 9 is a sectional view showing a plug of a conventional thick connector.
FIG. 10 is a sectional view showing a receptacle of a conventional thick connector.
FIG. 11 is a cross-sectional view showing the thick connector in a state where both are fitted.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Connector 2 Thin board 3 Terminal 4 Moving direction 5 Plug 6 Thin board 7 Terminal 8 Locking piece 9 Receptacle 10 Ridge projection 11 Groove 12 Cantilever type terminal 13 Fitting groove 14 Curved end

Claims (4)

Fits when a required number of conductive metal terminals are vertically arranged in parallel on a single thin synthetic resin substrate and moves in the vertical direction parallel to the terminals at appropriate locations on the substrate. Along with a grooved plug and cantilevered terminals made of the same number of elastic metal plates as the plug side on a single thin synthetic resin substrate, arranged in a row so as to extend in the vertical direction and to the plug side, A receptacle provided with a hook with a hook that protrudes in the vertical direction in a proper position on the substrate, and when the plug and the receptacle are fitted together, the respective terminals of both are connected, and when the plug is further slid in the vertical direction, A board-to-board connector in which a locking piece on the receptacle side is fitted and locked in a fitting groove on the plug side. 2. The plugging side according to claim 1, wherein the plug-in side is hollowed at the bottom of a number of grooves between the ridge-shaped protrusions provided by the row terminals so as to be exposed to an outer surface. A board-to-board connector as described. The cantilever type terminal of the receptacle is characterized in that the same number of terminals protrude from the frame bodies on both sides of the substrate so as to face each other, and both are arranged in a discontinuous state. 3. The board-to-board connector according to 2. 2. A plug-in board hollowed portion having a fitting groove for fitting when moving in parallel with the terminal, and a hooked engaging piece extending in the same direction (longitudinal direction) at an appropriate position on the receptacle-side board. 4. The inter-board connection connector according to any one of Items 1 to 3.

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