JP2005251420A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double-sided connector capable of having stable connection without disarranging the arrangement of contacts even if force to upset a contact pitch is applied longitudinally, laterally, and obliquely on the side where the contacts are arranged. <P>SOLUTION: This connector has a structure in which a plurality of the contacts 1 penetrating between both sides of a plate-like elastic insulating material 2 and having an upper contact surface 4a and a lower contact surface 4b are arranged in the insulating material, and a frame body 3 passing between the contacts and being connected each other is embedded in the inside of the elastic insulating material 2. By this structure, when an electronic component and a substrate have warps and rugged parts on their contact surfaces, and they are operated for engagement, even if force to upset the contact pitch is applied by longitudinally, laterally, and obliquely on the side where the contacts are arranged, by their pressing pressure, the arrangement of the contacts 1 is not disarranged and incorrect connection and non-contact are not caused. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention belongs to the technical field of a connector having a double-sided contact that is sandwiched between an electronic component and a board or between a board and a board and electrically connects each electrode.

  In recent personal computers, mobile phones, and many home electronic devices, large-scale integrated circuits (LSIs) and small electronic components with many electrodes are used to reduce size, weight, functionality, and digitization. It is necessary to mount the circuit board on the substrate at a high density, and it is necessary to electrically connect the substrates having a large number of circuits on which electronic components are mounted at a high density. In order to make an electrical connection between the electronic component and the substrate and between the substrate and the substrate, a connector having contacts on both sides and sandwiched between them is used, and the density of the electrodes of the electronic component and the substrate is increased. Along with this, this connector is required to have contacts that are minute and arranged in high density.

A conventional connector having contacts on both sides, which has been used in the past, embeds a thin wire conductor in an elastic insulating member such as an elastomer, and connects the projecting connection electrode to the end of the thin wire conductor. This is a structure in which a flexible substrate printed with a through hole is bonded to both surfaces of an elastomer, and the end of a thin wire conductor is inserted into the through hole and fixed by soldering or the like (for example, see Patent Document 1).
JP2003-217707 (FIG. 1)

  The above-mentioned conventional connector has a structure in which a thin wire conductor is embedded in an elastic insulating member such as an elastomer, and the connector is sandwiched between the electronic component and the board or the board for electrical connection. It is necessary to apply pressure.

  In a connector to be connected by applying pressure in this way, if there is a slight warpage or unevenness of the electronic component or the board, if the pressure is applied for connection, the warp or unevenness does not apply the pressure evenly to the entire surface of the connector. Since an equal force is applied, the elastic insulator is deformed in the vertical, horizontal, or oblique directions of the contact arrangement surface during the fitting operation, and the arrangement pitch of the contacts embedded in the elastic insulator is changed by the deformation of the elastic insulator. It will be disturbed.

  FIG. 6 is a plan view of a conventional connector in which 5 × 5 contacts are arranged in a matrix. FIG. 6A shows a state in which the elastic insulator 2 maintains a square shape without being pressed. ), (C), and (d) are states in which a force is applied in the direction of the arrow and the elastic insulator 2 is deformed to disturb the arrangement of the contacts. If the electronic component or the substrate has warping or unevenness, the warpage or uneven part causes deformation such as a combination of (b), (c) and (d) and disturbs the contact arrangement.

  Recent large-scale integrated circuits (LSIs) and electrodes on substrates on which they are mounted have hundreds of electrodes, and the pitch (interval) of the electrodes is as fine as 0.5 mm or less. In the future, with the further development of LSI, the number of electrodes will increase further, the pitch of electrodes will become finer, and the connectors will be required to have minute and dense contacts arranged. come.

  In such connectors that require finer and higher-density electrodes and pitches, even if the contact arrangement is slightly disrupted, the electrodes and pitch are extremely small, so there are serious problems such as misconnection and non-contact. Will occur.

  The problem to be solved by the present invention is that in the above-described conventional connector, when there is slight warping or unevenness of the electronic component or the board, when the clamping pressure is applied during the fitting operation, the elastic insulator of the connector is deformed. Thus, it is an object of the present invention to provide a connector that can solve the problem that the arrangement of contacts is disturbed and causes serious problems such as erroneous connection and non-contact, and can perform reliable and stable connection.

  A first configuration of the present invention is a connector in which a plurality of contacts penetrating between both surfaces and having contact surfaces on both sides are arranged in a plate-like insulator having elasticity, and a plurality of frames are provided in the insulator. It is a connector characterized by having a frame body in which the material passes through and is connected between the contacts.

  A second configuration of the present invention is a connector according to the first configuration, wherein the frame body is formed integrally with an elastic insulator.

  A third configuration of the present invention is a connector according to the first configuration or the second configuration, wherein the arrangement of the frame member of the frame body is a lattice shape.

  A fourth configuration of the present invention is a connector according to the first configuration or the second configuration, wherein the frame member of the frame passes in a diagonal direction in addition to the lattice shape. .

  The connector of the present invention has a structure in which a frame made of a frame material connected between the contacts in the elastic insulator is inserted, and this frame serves as a reinforcement, and warps and irregularities. Even if a certain electronic component or board is sandwiched, the entire elastic insulator will not be deformed and the contact arrangement will not be disturbed, and there will be no serious problems such as incorrect connection or non-contact between the electrode and contact. There is an effect of making a stable connection.

  The connector of the present invention has a grid structure so that the contact of the electronic component or board and the contact of the connector can be accurately brought into contact without being disturbed by pressing even if the contact surface of the electronic component or board has warpage or unevenness. An elastic frame is embedded in the elastic insulator so that the elastic insulator is elastic in the thickness direction and is not easily deformed in the vertical, horizontal and oblique directions.

  When a hard material that does not easily deform is used as the material for the elastic insulator, it is less likely to be deformed by pressing, but if there are warping or unevenness on the contact surface of the electronic component or substrate, an electrode that cannot contact the contact will come out. End up. In addition, when a soft material that is easily deformed is used as the material of the elastic insulator, the contact arrangement is disturbed as in the conventional connector described above, and the contact between the electrode and the contact is not properly performed.

  Therefore, the elastic insulator is made of a material that is elastic in the thickness direction in order to make it difficult to be deformed in the vertical, horizontal, and diagonal directions while having elasticity in the thickness direction of the elastic insulator. However, it is best to use a hard material that is hard to be deformed for the frame, to close the intervals between the lattices, and to add oblique lattices.

FIG. 1 is an external perspective view showing an embodiment of the connector of the present invention.
As shown in FIG. 1, the connector of the present invention has a structure in which a plurality of contacts are arranged in a matrix in a flat elastic insulator 2 and a frame 3 is embedded inside the elastic insulator 2. The contact 1 has an upper contact surface 4 a on the upper surface of the elastic insulator 2 and a lower contact surface 4 b on the lower surface of the elastic insulator 2, and these contact surfaces are in contact with an electronic component or an electrode of a substrate.

  FIG. 2 is a cross-sectional view showing details of the contacts and the frame in the embodiment of the connector of the present invention. 2 is a view of the elastic insulator 2 taken along the plane A in FIG. 1 and viewed in the direction of arrow B. The substrate 5a having the electrode 6a on the upper surface and the substrate 5b having the electrode 6b on the lower surface. Shows a state of contact.

  FIG. 2A shows that the contact 1 is inserted into a contact hole 11 opened in the elastic insulator 2, and the frame 3 having a square bar-like cross section of the frame member is formed inside the elastic insulator 2. The embedded state is shown. As shown by the arrows in (a), by pressing the substrates 5a and 5b, the electrode 6a of the substrate 5a is applied to the upper contact surface 4a of the contact 1, and the electrode 6b of the substrate 5b is applied to the lower contact surface 4b of the contact 1. In contact with each other, the electrode 6a and the electrode 6b are electrically connected.

  Since both the contact 1 and the elastic insulator 2 have elasticity, even if the pressure is changed by applying vibration or the like to the substrate, the contact 1 and the elastic insulator 2 are deformed corresponding to the change in the pressure. The contact surface of the contact 1 and the electrode of the substrate are kept in contact, and an electrically stable connection is made.

  When the substrate is warped or uneven and a large pressure is applied locally, the frame 3 is embedded inside the elastic insulator 2, so that the deformation of the elastic insulator 2 remains only at this portion. It is suppressed that other parts as shown in FIG. 6 and the entire elastic insulator 2 are deformed.

  FIG. 2 (b) shows a case in which the cross section is a long square and the plate-like frame 3 is embedded in the elastic insulator 2, and when the frame 3 is large in this way, It is possible to realize a connector in which contacts are arranged at high density using an elastic insulator made of a material that is easily elastically deformed because deformation of the elastic insulator 2 due to a simple pressing has little influence on other parts.

FIG. 3 is an external perspective view showing details of the frame body in the embodiment of the connector of the present invention. As shown in FIG. 3, the frame 3 is formed by a lattice frame material 7 and an oblique frame material 8.
A contact hole is opened in the elastic insulator at a position corresponding to the center of one lattice formed by the four lattice frame members 7. For this reason, the diagonal frame member 8 is arranged and incorporated so as not to interfere with these contact holes as shown in FIG.

  FIG. 4 is a plan view showing a state where the connector does not deform even when an external force as indicated by an arrow is applied in the embodiment of the connector of the present invention. The frame 3 shown in FIG. 3 is embedded in the elastic insulator 2 as indicated by a broken line, and since there is such a frame 3, deformation in the directions of arrows C, D, and E is suppressed. It has a structure.

FIG. 5 is a diagram for explaining a manufacturing method of an embodiment of the connector of the present invention.
First, as shown in FIG. 5A, the frame 3 shown in FIG. 3 is assembled into a mold 9 having a plurality of convex portions 12. The convex portion 12 is for forming the contact hole 11. Subsequently, as shown in (b), a gel (elastic insulating material) 10 which is a material of an elastic insulator is poured into a mold 9 in which the frame 3 is incorporated. When the pouring of the gel (elastic insulating material) 10 is finished, the gel (elastic insulating material) 10 is cured as shown in (c). Thus, the frame 3 and the elastic insulator are integrally molded (molded in).

  When the gel (elastic insulator) 10 is cured, the elastic insulator 2 is removed from the mold 9. FIG. 5D shows the elastic insulator 2 removed from the mold 9, in which a plurality of contact holes 11 are opened, and the frame body 3 is embedded therein.

  Finally, as shown in (e), the contact 1 is inserted into the contact hole 11 of the elastic insulator 2 to complete the connector.

  The manufacturing method shown in FIG. 5 is shown for easy understanding of the contents of the present invention and the structure of the connector, and the connector of the present invention is not limited to this manufacturing method.

It is an external appearance perspective view of the Example of the connector of this invention. It is sectional drawing which shows the detail of the contact and frame material in the Example of the connector of this invention. It is an external appearance perspective view which shows the detail of the frame in the Example of the connector of this invention. It is a top view which shows a mode that it does not deform | transform even if the external force shown by the arrow is added with respect to the Example connector of this invention. It is a figure explaining the manufacturing method of the Example of the connector of this invention. It is a top view which shows the mode of a deformation | transformation when external force is added to the conventional connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Contact 2 Elastic insulator 3 Frame 4a Upper contact surface 4b Lower contact surface 5a, 5b Substrate 6a, 6b Electrode 7 Lattice frame material 8 Diagonal frame material 9 Mold 10 Gel (elastic insulation material)
11 Contact hole 12 Projection

Claims (4)

  In a connector in which a plurality of contacts penetrating between both surfaces and having contact surfaces on both sides are arranged in a plate-shaped insulator having elasticity, a plurality of frame members pass between the contacts in the insulator. A connector having a frame body connected to each other.   The connector according to claim 1, wherein the frame is integrally formed with the elastic insulator.   3. The connector according to claim 1, wherein the frame material is arranged in a lattice shape. The connector according to claim 1 or 2, wherein the frame material of the frame passes in an oblique direction in addition to the lattice shape.

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