JP4532234B2 - connector - Google Patents

Description

The present invention provides a connector such that release electrically contact each other as the plug and receptacle etc., to a connector contact each other utilizing the contactor bets which is adapted to securely connect the magnetic force.

In a connector or the like including a plug and a receptacle, it is essential that a large number of contacts are securely connected. In particular, recently, a small and precise connector is configured such that a plurality of contacts are arranged in a width of 1 mm.
In such a connector, one of the contacts of the plug and the receptacle is fixedly formed by a printed wiring or the like, and the other contact is formed in a thin plate shape having a spring property so as to contact and separate from each other. A contact formed in the shape of a thin plate with springiness must be curved so that the contact can move, and requires an extra gap, and twisting or contact pressure is insufficient if contact and separation are repeated. As a result, there was a problem that the connection could not be surely made, the neighbors were short-circuited, and the demand for miniaturization could not be met.

There is a magnet connector 10 having a structure in which fixed contacts are sandwiched and contacted with each other using a contact having no spring property (Patent Document 1).
The magnet connector 10 includes a first connector 11 and a second connector 21 as shown in FIG. As shown in FIG. 6 (a), the first connector 11 has a conductor 14 bent on both sides in two stages connected to a printed circuit board 15 at both ends, and an insulator on both sides slightly inside the connection. The magnet 13 is accommodated in a space 16 formed by the concave portion 17 of the insulator 12 and the protruding portion 18 of the conductor 14. Therefore, the magnet 13 can freely move in the space 16.

As shown in FIG. 6B, the second connector 21 has a conductor 24 bent on both sides connected to the printed circuit board 25 at both ends, and is fixed to the insulator 22 on both sides slightly inside this connection. A magnet 23 is accommodated between the insulators 22 and inside the conductor 24, and a recess into which the first connector 11 is fitted is formed on the outside of the insulator 22. Therefore, the magnet 23 is freely movable inside.
In such a configuration, as shown in FIG. 6 (b), when the first connector 11 is fitted to the second connector 21, the conductors 14 and 24 are attracted by the attractive force of the magnets 13 and 23. Contact.
JP2003-303646A

Since the magnetic connector 10 shown in FIG. 6 has no movable part in the contact, there is no problem of deformation or twisting of the contact itself, but it has the following problems.
(1) In the first connector 11, the magnet 13 is loosely fitted in the space 16 between the conductor 14 and the insulator 12, and in the second connector 21, the magnet is interposed between the conductor 24 and the printed board 25. Since 23 is loosely fitted, it becomes higher in the height direction and there is a limit to downsizing.
(2) The first connector 11 requires a manufacturing process in which the conductor 14 is fixed to the insulator 12, the conductor 24 is fixed to the insulator 22, and the magnet 13 is fitted in the space 16. In addition, the second connector 21 requires a similar manufacturing process, which increases the number of manufacturing processes and makes the manufacturing complicated.
(3) In the magnet connector 10 in which a large number of conductors 14 and conductors 24 are arranged in the width direction, if the back magnet 13 and the magnet 23 come into contact with the conductors 14 and 24, a short circuit accident may occur. Insulating treatment must be performed at the contact portion between the body 14 and the magnet 13 and at the contact portion between the conductor 24 and the magnet 23, which increases the number of work steps and increases the cost.

An object of the present invention is to provide, without chromatic moving parts, yet more reliably connect simple contact with each other in structure, and to provide a connector utilizing the contactor bets which enables miniaturization is there.

The contacts according to the present invention are pairs of contacts that are electrically connected to and separated from each other. These contacts are each made of a magnetic material, and at least one of them is magnetized so as to be attracted to each other. These contacts may be composed of only a magnetic material, a magnetic material coated with a conductor, or a conductive material coated with a magnetic material.
The present invention also provides a first connector having a first connector contact made of a plurality of magnetic bodies electrically connected to a plurality of electrode patterns of the first printed circuit board, and a second printed circuit board. a plurality of the electrode pattern and a second connector provided with the second connector contacts comprising a plurality of magnetic material for electrically connecting a connector approaching and moving away from each other, said first connector contact The first connector housing is movable up and down within the first connector housing, and both ends thereof are provided so as to slightly protrude from the first connector housing. The second connector contact has both ends mounted on the second connector. The first and second printed circuit boards are provided so as to protrude slightly from the housing for the first and second connector contacts, one for each of the first and second connector contacts. The magnetic material is disposed of, between the first and second magnetic member and the first and second printed circuit board electrode pattern interposed the first and second insulating layers, respectively, said first and the a second connector contacts and first and second magnetic bodies, as well as adsorbed each other across the said first and second electrode patterns first and second insulating layer, the second 1 and a second connector for co Ntakuto each other is constructed by allowed magnetizing one contact at least one opposed to adsorb each other.

The present invention provides a first connector comprising a first connector contact made of a plurality of magnetic bodies electrically connected to a plurality of electrode patterns of a first printed circuit board according to claim 1; a second connector provided with the second connector contacts comprising a plurality of magnetic body to be electrically connected to a plurality of electrode patterns of the second printed circuit board the connector approaching and moving away from each other, the first The first connector contact is movable up and down in the first connector housing, and both ends thereof are provided so as to protrude slightly from the first connector housing, and the second connector contact is provided at both ends. Is provided so as to protrude slightly from the second connector housing, and one is provided on each of the first and second printed circuit boards for each of the plurality of first and second connector contacts. The first and second magnetic bodies are disposed, and the first and second insulating layers are respectively disposed between the first and second magnetic bodies and the electrode patterns of the first and second printed circuit boards. interposed, and said first and second magnetic bodies and said first and second connector contacts, each other across the first and second electrode pattern and the first and second insulating layer as well as adsorption, the the first and second connectors for co Ntakuto each other was allowed magnetizing one contact at least one opposed to adsorb one another, electrical and contacts the printed circuit board electrode patterns and the connector Thus, the connection is made by magnetic force, and a process such as soldering is not necessary, and the electrical connection of the first and second connectors is reliably performed by the magnetic force. Further, the first and second magnetic bodies do not correspond to one first and second connector contacts, but are common to a plurality of first and second connector contacts arranged in parallel. In this case, by interposing an insulating layer between the first and second magnetic bodies and the electrode patterns of the first and second printed circuit boards, the wirings of the plurality of electrode patterns are short-circuited with each other by the magnetic body. There is no fear of doing.

The magnetic contact according to the present invention is a pair of contacts that are electrically connected to and separated from each other. Each of these contacts is made of a magnetic material, and at least one of them is magnetized so as to be attracted to each other. is there. These contacts may be composed of only a magnetic material, a magnetic material coated with a conductor, or a conductive material coated with a magnetic material.
Further, in the contact provided with the magnetic contacts that are electrically connected to and separated from each other, these contacts are embedded in each of the insulating base members and in each of these insulating base members, and at least one of the contacts is attached to each other. It consists of a magnetic material magnetized on one side and a conductive material formed on the surface of each of the insulating base members.
The magnetic body is, for example, an insulating base member in which a granular nickel particle body is coated with a gold plating layer and magnetized to form a plurality of lumps, and these lumps are brought into contact with or separated from a conductive material. Buried inside.

Embodiment 1 of the present invention will be described below with reference to the drawings.
In FIG. 1A, 30 is a first connector such as a plug, and 31 is a second connector such as a receptacle.
The first connector 30 includes a first connector housing 32 that is vertically elongated and a plurality of first connector magnetic contacts 34 provided at predetermined intervals in the length direction of the housing 32. The first connector housing 32 includes a flange portion 32a and an insertion portion 32b, and the first connector magnetic contact 34 extends from the lower end surface of the insertion portion 32b to the upper end portion, and Upper and lower end portions are provided to protrude slightly outward.

  The second connector 31 includes a vertically elongated second connector housing 33 and a plurality of second connector magnetic contacts 35 provided at predetermined intervals in the length direction of the housing 33. The second connector housing 33 is formed with a recess 33b into which the insertion portion 32b is fitted, and an outer peripheral portion of the recess 33b serves as a side edge 33a. The second connector magnetic contact 35 extends from the upper end surface of the bottom portion 33c to the lower end portion, and the upper and lower end portions are provided so as to protrude slightly outward, and contact the first connector magnetic contact 34. Release.

  In FIG. 1B in which the portion A where the first connector magnetic contact 34 and the second connector magnetic contact 35 are in contact with each other is enlarged, the first connector magnetic contact 34 has a central member. The insulating base member 36 is made of plastic, and a magnetic body 40 is embedded in the lower end portion of the insulating base member 36 when the insulating base member 36 is molded. Is covered with a conductive material 38.

  As shown in FIG. 2A, the magnetic body 40 is formed by coating the outer periphery of a granular nickel particle body 42 made of a magnetic body with a non-magnetic gold plating layer 43 by plating or the like, and magnetizing it. The plurality of nickel particle bodies 42 are formed into a spherical lump as shown in FIG. The magnetic body 40 is embedded at a position as close to the contacting / separating portion as possible when the insulating base member 36 is molded. A conductive material 38 is formed on the outer periphery of the insulating base member 36 in which the magnetic body 40 is embedded by using a copper foil paste, or by press-fitting or integrally molding a copper alloy. The conductive material 38 may be continuous from the contact / separation portion with the other contact at the lower end portion to the connection portion with the lead terminal or the like at the upper end portion, and may be the entire surface or only one side.

  Similarly to the first connector magnetic contact 34, the second connector magnetic contact 35 has a magnetic body 41 embedded in an insulating base member 37 and a conductive material 39 formed on the surface. However, at least one of the magnetic body 40 and the magnetic body 41 is magnetized in the direction of attracting each other.

In the configuration as described above, when the insertion portion 32b of the first connector 30 is fitted so as to be guided by the tapered portion of the inner wall upper portion of the concave portion 33b of the second connector 31, the first connector magnetic contact 34 is provided. The magnetic body 40 and the magnetic body 41 of the second connector magnetic contact 35 are attracted to each other, so that the conductive material 38 of the first connector magnetic contact 34 and the conductive material of the second connector magnetic contact 35 are attracted. 39 is firmly attached and electrically connected. At this time, a gap is formed between the upper surface of the bottom of the concave portion 33b and the lower surface of the insertion portion 32b in order to improve contact adhesion.
By preventing the magnetic body 40 and the magnetic body 41 from having a magnetic force more than necessary, the first connector 30 and the second connector 31 can be easily detached.

The contact / separation direction of the first connector 30 and the second connector 31 in FIG. 1 is the same direction as the magnetic lines of force of the magnetic body 40 and the magnetic body 41, but FIG. 3 shows the first connector 30 and the second connector. The case where the contact / separation direction of 31 is a direction orthogonal or intersecting with the magnetic force lines of the magnetic body 40 and the magnetic body 41 is shown.
Specifically, FIG. 3A shows an example in which the first connector 30 is an IC card or the like, and the first connector 30 is inserted into and removed from the second connector 31 that is a card connector. . The first connector 30 has a first connector magnetic contact 34 formed on a side surface that is inserted and removed while sliding, and the second connector 31 has a first connector magnetic contact. A second connector magnetic contact 35 is formed on the inner surface parallel to the body contact 34.

  In such a magnetic contact, as shown in FIG. 3 (b), the first connector magnetic contact 34 has a magnetic body 40 embedded in an insulating base member 36 and a conductive surface on the outer surface. The material 38 is formed and formed integrally with the side surface of the first connector housing 32 constituting the first connector 30. The first connector housing 32 and the insulating base member 36 of the first connector magnetic contact 34 may be integrated. A plurality of magnetic bodies 40 may be embedded.

Similarly to the first connector magnetic contact 34, the second connector 31 also has a magnetic body 41 embedded in the insulating base member 37 and a conductive material 39 formed on the surface. However, the magnetic body 40 and the magnetic body 41 are magnetized in a direction in which at least one of them is attracted to each other.
The configuration is the same when the first connector magnetic contact 34 and the second connector magnetic contact 35 are provided at a plurality of locations.

In the above configuration, when the conductive material 38 of the first connector 30 is fitted to the conductive material 39 of the second connector 31 while sliding, the magnetic body 40 of the first connector magnetic contact 34 and the first conductive material 38 are connected. The magnetic body 41 of the second connector magnetic contact 35 attracts each other, and the conductive material 38 of the first connector magnetic contact 34 and the conductive material 39 of the second connector magnetic contact 35 securely adhere to each other. Electrically connected.
Since the insertion / extraction direction of the first connector 30 is a direction perpendicular to or intersecting with the magnetic lines of force of the magnetic body 40 and the magnetic body 41, the first connector 30 and the second connector 31 are provided even if a relatively strong magnetic force is applied. Can be easily separated.

In the first and second embodiments, the description has been given of the case where the granular nickel particle body 42 made of a magnetic material is magnetized and the plurality of nickel particle bodies 42 are formed into a spherical lump, but the present invention is not limited to this. .
In FIG. 4, ferrite magnet powder 46 is mixed when the insulating base member 36 that is the substrate of the first connector magnetic contact 34 is in a liquid or soft state. The ferrite magnet powder 46 has a flat hexagonal crystal shape and is a single magnetic domain magnetized in the axial direction. Each of the ferrite magnet powders 45 is in the desired direction as it is kneaded with the conductive material 38. Therefore, as shown in FIG. 4 (a), when the roller 44 is rolled from both sides, it is aligned in approximately one direction and has anisotropy in a direction perpendicular to the rolling. The material cured in this state is used as the insulating base member of the first connector magnetic contact 34, and the conductive material 38 is formed on the side surface and magnetized.
Similarly, with respect to the second connector magnetic contact 35, the ferrite magnet powder 46 is kneaded and rolled to harden the insulating base member 37 to form a conductive material 39, and the first connector magnetic contact is formed. 34 is magnetized in the direction of adsorption.

  In the configuration as described above, when the conductive material 38 of the first connector 30 is slid or brought into and out of contact with the conductive material 39 of the second connector 31, the ferrite magnet powder 45 of the first connector magnetic contact 34 and The ferrite magnet powder 46 of the second connector magnetic contact 35 attracts each other, and the conductive material 38 of the first connector magnetic contact 34 and the conductive material 39 of the second connector magnetic contact 35 are surely secured. Close contact and electrical connection.

  In the first, second, and third embodiments, the first connector magnetic contact 34 and the second connector magnetic contact 35 may be magnets magnetized in the direction in which they are attracted to each other. Further, only one of the first connector magnetic contact 34 and the second connector magnetic contact 35 may be a magnet, and the other may be a magnetic body that is not magnetized.

In the first, second, and third embodiments, each of the first connector magnetic contact 34 and the second connector magnetic contact 35 is one insulating base member, and the insulating base member is provided inside the insulating base member. A magnetic material was embedded and a conductive material was formed on the outer surface.
However, each of the first connector magnetic contact 34 and the second connector magnetic contact 35 is a common insulating base member for a plurality of conductive materials, and a common magnetic member is provided inside the insulating base member. The body can be embedded and individual conductive materials can be formed on the outer surface at predetermined intervals.

  In the above-described embodiment, an example in which the magnetic body 40 is embedded in the insulating portion 36 has been described. However, in FIG. 5, the first connector magnetic contact 34 and the second connector magnetic contact 35 are made of a magnetic body. Is shown. By forming these connector magnetic contacts 34 and 35 with a magnetic material, they can be connected to the electrode patterns 49 and 50 of the printed circuit boards 28 and 29 by magnetic force without using solder.

More specifically, in FIG. 5A, the first connector magnetic contact 34 made of a magnetic material is passed through the first connector housing 32 of the first connector 30. The upper and lower end portions of the first connector magnetic contact 34 slightly protrude from the upper and lower ends of the first connector housing 32. Further, the first connector magnetic contact 34 has upper and lower ends that can be moved up and down with protrusions 53 loosely fitted in the gaps 54 in the first connector housing 32 in order to ensure electrical connection. Is provided.
A magnetic body 47 is provided at a position of the printed circuit board 28 facing the upper end of the first connector magnetic contact 34, and an electrode pattern 49 is formed on the magnetic body 47. Then, by using at least one of the first connector magnetic contact 34 and the magnetic body 47 as a magnet, they are attracted to each other, and the electrode pattern 49 and the upper end of the first connector magnetic contact 34 are soldered together. Without electrical and mechanical connection. Note that the electrode pattern 49 is formed on the magnetic body 47 when the magnetic body 47 does not correspond to one magnetic contact 34 but is common to a plurality of magnetic contacts 34 arranged side by side. Thus, when there is a possibility that the wiring of the electrode pattern 49 is short-circuited by the magnetic body 47, as shown in FIG. (B-1), an insulating layer 51 is interposed between the magnetic body 47 and the electrode pattern 49, As shown in FIG. 2B-2, an insulating layer 51 that leaves a part of the printed circuit board 28 is interposed between the magnetic body 47 and the electrode pattern 49.

  The connection between the lower end portion of the first connector magnetic contact 34 in the first connector 30 and the upper end portion of the second connector magnetic contact 35 in the second connector 31 is as shown in FIG. The first connector magnetic contact 34 and the second connector magnetic contact 35 are each made of a magnetic material, and at least one of them is a magnet so that they are electrically and mechanically connected.

  The magnetic body 48 is provided at the position of the printed circuit board 29 facing the lower end of the second connector magnetic contact 35, and the electrode pattern 50 is formed on the magnetic body 48. By using at least one of the connector magnetic contact 35 and the magnetic body 48 as magnets, the electrode pattern 50 and the lower end of the second connector magnetic contact 35 are electrically connected without soldering. Mechanically connected. The electrode pattern 50 is formed on the magnetic body 48 when the magnetic body 48 does not correspond to one magnetic contact 35 but is common to a plurality of magnetic contacts 35 arranged side by side. When there is a possibility that the wiring of the electrode pattern 50 may be short-circuited by the magnetic body 48, as shown in FIG. (D-1), an insulating layer 52 is interposed between the magnetic body 48 and the electrode pattern 50, As shown in FIG. 2D-2, an insulating layer 52 that leaves a part of the printed circuit board 29 is interposed between the magnetic body 48 and the electrode pattern 50.

  5 (a), (b-1), (b-2), (c), (d-1) and (d-2), the first connector magnetic contact 34 and the second connector The magnetic contact 35 is composed only of a magnetic material, but is not limited to this, and at least one of them is formed by plating a conductive material 38 on the outside of the magnetic material 40 as shown in (e-1). It may be coated, or as shown in (e-2), the magnetic material 40 may be coated on the outside of the conductive material 38 by plating or the like.

  In FIG. 5 (a), one magnetic body 47 is made to correspond to one first connector magnetic contact 34, and similarly, one magnetic magnetic contact 35 to one second connector magnetic contact 35. Although the body 48 may be made to correspond, the plurality of first connector magnetic contacts 34 are made to correspond to one elongated magnetic body 47, and similarly, the plurality of second connector magnetic contacts 47 One elongated magnetic body 48 may be associated with 35. In this case, as described above, the prevention process is performed when there is a possibility of a short circuit.

1B and 3B, each of the contacts 34 and 35 includes an insulating base member, a magnetic body embedded in each of these insulating base members, and the surface of the insulating base member. However, the present invention is not limited to this, and at least one of the contacts 34 and 35 is embedded in the insulating base member and in each of these insulating base members. The magnetic contact and the conductive material formed on the surface of the insulating base member, and the other contact has a magnetic part exposed, or only the magnetic material, or the magnetic material is covered with the conductive material. For example, the contact may be combined with the contact shown in FIGS.
Also in the embodiment in FIG. 4B, each of the contacts 34 and 35 is similarly insulated base member obtained by kneading ferrite magnet powder inside the insulating material, rolling and aligning the magnetization direction, and curing. And a conductive material formed on the surface of the insulating base member, or at least one of them may have such a configuration, and the other may have another configuration.

1A and 1B show a first embodiment of a magnetic contact according to the present invention, in which FIG. 1A is a longitudinal sectional view of a connector, and FIG. 1 shows an embodiment of a magnetic body in FIG. 1, (a) is an enlarged view of a granular nickel particle body, and (b) is a front view showing a lump that adsorbs a plurality of nickel particle bodies. FIG. 3 shows Embodiment 2 of the magnetic contact according to the present invention, in which (a) is a longitudinal sectional view of a card connector, and (b) is an enlarged sectional view of a B portion. FIG. 7 shows Embodiment 3 of the magnetic contact according to the present invention, where (a) is an explanatory view showing a state in which ferrite magnet powder is kneaded and rolled on an insulating base member, and (b) is a first connector magnetism. It is an expanded sectional view of a body contact and the 2nd magnetic contact for connectors. 4 shows a magnetic contact according to a fourth embodiment of the present invention, wherein (a) is a longitudinal sectional view of a connector, (b-1) is an enlarged sectional view of a C portion, and (b-2) is a sectional view of the C portion. An enlarged sectional view of another example, (c) is an enlarged sectional view of part D, (d-1) is an enlarged sectional view of part E, and (d-2) is an enlarged section of another example of part E. FIG. 5E is an enlarged cross-sectional view of the connector magnetic contacts 34 and 35, and FIG. 5E is an enlarged cross-sectional view of another example of the connector magnetic contacts 34 and 35. The conventional magnet connector 10 is shown, (a) is sectional drawing of the 1st connector 11, (b) is sectional drawing of the connection state of the 1st connector 11 and the 2nd connector 21. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Magnet connector, 11 ... 1st connector, 12 ... Insulator, 13 ... Magnet, 14 ... Conductor, 15 ... Printed circuit board, 16 ... Space, 17 ... Recessed part, 18 ... Projection part, 21 ... 2nd connector , 22 ... insulator, 23 ... magnet, 24 ... conductor, 25 ... printed circuit board, 28 ... printed circuit board, 29 ... printed circuit board, 30 ... first connector, 31 ... second connector, 32 ... first connector Housing ... 33 second connector housing, 34 ... first connector magnetic contact, 35 ... second connector magnetic contact, 36 ... insulating base member, 37 ... insulating base member, 38 ... conductive material 39 ... conductive material, 40 ... magnetic material, 41 ... magnetic material, 42 ... nickel particle, 43 ... gold plated layer, 44 ... roller, 45 ... ferrite magnet powder, 46 ... ferrite magnet powder, 47 ... magnetic material, 8 ... magnetic, 49 ... electrode pattern, 50 ... electrode pattern, 51 ... insulating layer, 52: insulating layer, 53 ... projection, 54 ... gap.

Claims (1)

First connector provided with the first connector contact comprising a plurality of magnetic body to be electrically connected to a plurality of electrode patterns of the first printed circuit board, a plurality of electrode patterns of the second printed circuit board to a plurality of second connector and the connector approaching and moving away from each other provided with the second connector contacts made of a magnetic material which is electrically connected to the first connector contacts, the first connector Both end portions are provided so as to be movable up and down in the housing, and slightly protrude from the first connector housing, and the second connector contact has both ends slightly protruded from the second connector housing. The first and second magnetic bodies are arranged on the first and second printed circuit boards for each of the plurality of first and second connector contacts. , Between the first and second magnetic member and the first and second printed circuit board electrode pattern interposed the first and second insulating layers, respectively, said first and second connectors The first contact and the second magnetic body are attracted to each other with the first and second electrode patterns and the first and second insulating layers interposed therebetween, and the first and second connectors are attached to each other. connector, characterized in that the data for co Ntakuto each other which allowed magnetizing one contact at least one opposed to adsorb each other.

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