JPS62110280A - Connector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an improvement in a connector that makes it possible to easily connect a cord by using the attraction force of a permanent magnet. This invention relates to a connector that does not cause any damage to magnetic recording cards, tapes, etc.

(Prior Art) Various devices have been used in which a plug holder and a plug are attracted to each other, which is a connection for electrically connecting a plug to a socket of an electric appliance or an outlet on a wall or the like.

(Problem to be solved by the invention) However, the above connector incorporates a permanent magnet into one of the pair of plugs or plug holders, and exposes its attracting surface on the front end surface, and exposes the attraction surface on the other front end surface. The plug and plug receiver are brought into contact and connected by suction with the suction plate. For this reason, the attraction surface of the permanent magnet has sufficient magnetic force for attraction, so a considerable amount of magnetic field lines protrude from the chain, and when the connector is not connected, the attraction surface of the permanent magnet is exposed. magnetic tape, magnetic card, etc. that comes close to or comes into contact with the suction surface? +! The magnetic recording of magnetic recording products such as 1kikinbu is destroyed and becomes unusable, and the negative effects are significant, such as electronic equipment being damaged and paralyzed, or its various signals being disturbed and causing malfunctions. Furthermore, there have been many problems with home televisions, such as children playing with plugs that have permanent magnets and bringing them close to the cathode ray tube surface, damaging the image receiving surface.

(Means for Solving the Problems) The present invention was proposed to eliminate the above problems, and the connector consists of a plug A and a plug receiver B,
The plug A and the plug receiver B have a terminal rod 14.14 and terminal pieces 4, 4 which are elastically biased in the direction of the terminal rod 14.14.
A suction device C and a suction target device are provided on the plug A and the plug holder B so that they are attracted to each other and the terminal rod 14.14 and the terminal piece 4.4 come into contact with each other. The connector C includes a permanent magnet 8 having a hole 8a extending from the magnetic pole face a toward the magnetic pole face, and a ferromagnetic member 9 attached to the magnetic pole face of the permanent magnet 8. The permanent magnet 8 is integrally fitted into a non-magnetic case 10 which has a short cylindrical shape and has a hole 10a on the bottom surface 10b which communicates with the hole 8a, with the magnetic pole surface a of the permanent magnet 8 inside. The attracting tool is the bottom surface of the case 10 of the magnetic pole surface a of the permanent magnet 8.
The bottom face lOb of the non-magnetic case 10 in the adsorption tool C is made of a ferromagnetic member 12 that is brought into contact with the ferromagnetic member 9 and is attracted to the ferromagnetic member 9 through the hole 8a of the permanent magnet 8.
The peripheral edge of the raised four edges 10C, and the six edges 10C
The bottom tab surrounded by the ferromagnetic member 12 is a recessed part for attracting the ferromagnetic member 12, and the adsorbing tool C has a mounting hole opened in the front surface of the plug A or the plug holder B, leaving the six edges 10C. 7 is fitted inside.

(Function) When the connector configured in this way is brought into contact with the front end surfaces 1a and lla of the plug A and the plug holder B, an adsorption AC is generated.
The ferromagnetic members 9 and 12 of the attracting device are attracted and connected to each other through the hole 8a of the permanent magnet 8, and the terminal piece 4.4 and the terminal rod 14.14 are connected. When the permanent magnet 8 is not connected, its magnetic pole face is only covered by the case IO, but due to the six edges lOC of the case lO, objects that are close to the magnetic pole face are covered by the case 10 on the magnetic pole face side.
Since contact with the bottom surface 10b of the plug is prevented and a magnetic gap is formed between the magnetic pole faces, the lines of magnetic force are significantly prevented from protruding outward from the front end surface 1a or lla of the plug A or plug holder B. For example, when the magnetic flux number of the permanent magnet 8 is 1000 Gauss, the magnetic flux number at the front end face 1a or lla can be reduced to 450 Gauss by appropriately setting the size of the magnetic gap X.

Further, a ferromagnetic member 12 is brought into contact with the magnetic pole face of the permanent magnet 8.
are attracted to the ferromagnetic member 9 attached to the magnetic pole surface a through the hole 8a of the permanent magnet, and the lines of magnetic force of each magnetic pole are collected by the ferromagnetic member 9 and 12, and the magnetic flux is transmitted to the part inside the hole 8a. Since the magnet is guided to form a magnetic closed circuit, leakage lines of magnetic force are effectively eliminated and the adsorption efficiency is improved. Also terminal piece 4.4
is elastically biased, so the terminal piece 4.4 and the terminal rod 14
．． The contact with 14 is reliable and will not loosen due to vibration etc.

(Embodiment) FIG. 1 shows a typical embodiment of the present invention, where A is a plug and B is a plug receiver.

- Plug A is on the power side, and plug body 1
and the cords 3, 3 introduced therein via the bushing 2, and the terminal piece 4 made of spring steel incorporated into the plug body l.
．． 4 and a suction tool C. The plug body 1 is made of an insulator, and terminal pieces 4.4 are provided at the front end of the plug body 1, each connected to two wooden cords 3.3 introduced into the interior through a bushing 2 provided at the rear end. Contact members 6, 6, which are telescopically fitted into the recess 5.5 and fixed to the front end of the terminal piece 4.4, are elastically biased toward the openings 5a, 5a of the recess 5.5. There is. Further, the suction tool C includes a ring plate-shaped permanent magnet 8 having a hole 8a extending from one magnetic pole surface a to the other magnetic pole surface, and a disk-shaped permanent magnet 8 attached to one of the magnetic pole surfaces a. and a ferromagnetic member 9 having a protrusion 9a projecting into the hole 8a at its center, having a short cylindrical shape,
Furthermore, the case 10 is housed in a non-magnetic case 10 which has a hole 10a on the bottom surface 10b that communicates with the hole 8a, and the hole 10a on the bottom surface 10b of the case 10 communicates with the hole 8a of the permanent magnet 8, so that the bending wind is transmitted to the ferromagnetic member 9. The permanent magnet 8 and the ferromagnetic member 9 are held together by being folded upward or the like. Therefore, the case l
The permanent magnet 8 and the ferromagnetic member 9 held by the plug body L are fitted into the mounting hole 7 formed on the front surface of the plug body l with the magnetic pole surface a attached with the ferromagnetic member 9 inside. B
is on the load side, and a cover made of a ferromagnetic member 12 that is attracted to the magnetic pole face of the permanent magnet 8 through the bottom surface of the case 10 is provided at the center of the front surface of the thick plate-shaped plug holder body 11 made of an insulator. A suction device is attached, and a protrusion 12a is fixed to the suction surface 12°, the protrusion 12a adhering to the protrusion 9a within the hole 8a of the permanent magnet 8 at its tip surface. In addition, a terminal rod 14.14 is inserted into a hole 13.13 passing through the plug receiving body 11 in the front-rear direction, and its front end 14° is connected to the main body 1.
It is fitted so as to protrude from the front end surface 11a of 1, and is connected to the load side cord 15.15 at the rear end.

Further, the peripheral edge of the bottom surface 10b of the case 10 in the suction tool C is a raised curved edge 10G, and the bottom surface 10b surrounded by the six edges 10C is a recessed surface of the suction gate of the ferromagnetic member 12. The suction tool C is fitted into the mounting hole 7 of the plug A, leaving the six edges 10C.

When the plug A and the plug holder B are brought into contact with each other at their respective front end surfaces 1a and lla, the protrusions 9a and 12a of the ferromagnetic members 9 and 12 are attracted to each other through the hole 8a of the permanent magnet 8. , the ferromagnetic member 12 is attracted to the magnetic pole surface through the case 10 with an attraction surface of 12°, and the plug A and the plug receiver B are connected integrally.

FIG. 2 shows another embodiment, in which a terminal rod 14.14 is attached to the plug A on the load side, and a terminal piece 4.14 is attached to the plug holder B on the power source side.
4, and the suction device C and the suction target device are the same as those in the previous example.

The protruding portion 12a is extended by the length of the protruding portion 9a so that it is directly attracted to the plate portion of the ferromagnetic member 9 when adsorbed, and there is a gap between the magnetic pole face of the permanent magnet 8 and the case 10. A magnetic shield plate 16 made of a ferromagnetic material is interposed, and the plug A
The number of magnetic fluxes at the front end surface 1a of the magnetic head is reduced.

FIG. 3 shows an embodiment in which the plug A on the power supply side in FIG. 1 is provided with a suction device, and the plug receiver B on the load side is provided with a suction device C.

Further, the ferromagnetic members 9 and 12 are arranged in a reverse relationship to that of the previous embodiment, so that the protruding portion 9a of the ferromagnetic member 9 is directly attracted to the plate portion of the ferromagnetic member 2.

Incidentally, the relative positions of the permanent magnets and the contacts on the front end face do not necessarily need to be on the same line as in the embodiment, but may be arranged in a triangular shape to reduce the diameter of the connector.

(Effect) The force to hit the thick part) The seat ψ7 on the top of the plug and the plug holder, and the suction device on the other side, the suction The connected permanent magnet 8 of the suction tool has a hole 8a extending from one magnetic pole surface a to the other magnetic pole surface, and a ferromagnetic member 9 is attached to the magnetic pole surface a, and a ferromagnetic member 9 is attached to the magnetic pole surface a. The permanent magnet 8 is fitted into the hole made in the front surface of the receiver with the magnetic pole surface a having the ferromagnetic member 9 facing inward, and the ferromagnetic member 12 is brought into contact with the magnetic pole surface of the permanent magnet 8. Since it is attracted to the ferromagnetic member 9 through the hole 8a, the lines of magnetic force of each magnetic pole are attached to the ferromagnetic member 9.
, 12 and guides the magnetic flux to the protrusion in the hole 8a to form a magnetic closed circuit, so leakage magnetic lines of force are effectively eliminated and the adsorption effect is good. is considered to be the raised white edge 10c, and the 6
The bottom surface lOb surrounded by the edge lOC is a recessed part for attracting the ferromagnetic member 12, and the suction tool is inserted into the mounting hole opened in the front surface of the plug or plug receiver, leaving the six edges 10C. Since it is fitted, objects that are close to the magnetic pole face in the unconnected state are prevented from coming into close contact with the magnetic pole face (via the case 10) by the six edges 10c, and are prevented from coming into close contact with the magnetic pole face of the permanent magnet. A magnetic gap is formed therebetween, and by appropriately setting the six edges 10c, for example, in the case of a permanent magnet having a magnetic flux number of 1000 Gauss, the number of leakage magnetic flux near the front end face of the plug etc. can be set to about 450 Gauss, Furthermore, if a magnetic shield plate is inserted, 15
Since it can be set to about 0 Gauss, the magnetic recording will not be destroyed even if one of the connectors that has a permanent magnet comes close to a magnetic recording card such as a cash card or a magnetic tape. It does not cause noise or malfunction even when placed close to the

Further, the terminal piece is resiliently biased toward the terminal rod, and together with the above-mentioned effective suction, it makes sure contact with the terminal rod and will not loosen due to vibration or the like and cause poor contact.

On the other hand, if a force is applied to the connection part in a direction perpendicular to the connection direction, the plug will act like a lever and easily come off the attraction, preventing the terminal from bending, and the connector Destruction of

[Brief explanation of drawings]

FIG. 1 is a sectional view of a typical embodiment of the connector according to the present invention, and FIGS. 2 and ff13 are sectional views of other embodiments. A...Plug, B...Plug holder, C...Adsorption tool,
D: Device to be attracted, l: Plug body, 4: Terminal piece. 4C...6 edge, 6...contact member, 7...hole, 8...
... Permanent magnet, 8a... Hole, 9... Ferromagnetic member, 9
a...Protrusion, 10...Case, 11...Plug holder body, 12...Ferromagnetic plate, 12a...Protrusion, 1
4...Terminal rod, a, b...Magnetic pole surface. Figure 2 Figure 3

Claims (1)

[Claims] Consisting of a plug and a plug receiver, the plug and the plug receiver are provided with a terminal rod and a terminal piece elastically biased toward the terminal rod, and the plug and the plug receiver are provided with a terminal rod and a terminal piece elastically biased toward the terminal rod. A connector is provided with an adsorbing tool and an adsorbed tool so that the terminal rod and the terminal piece come into contact with each other by adsorption, and the adsorbing tool has a hole extending from the magnetic pole surface a toward the magnetic pole surface b. The permanent magnet 8 having the hole 8a and the ferromagnetic member 9 attached to the magnetic pole face b of the permanent magnet 8 have a short cylindrical shape.
The permanent magnet 8 is integrally fitted into a non-magnetic case 10 having a hole 10a on the bottom surface 10b that communicates with the permanent magnet 8 with the magnetic pole face a inside. The non-magnetic case 10 in the attracting tool is made of a ferromagnetic member 12 that is brought into contact with the bottom surface 10b of the case 10 on the magnetic pole surface a and is attracted to the ferromagnetic member 9 through the hole 8a of the permanent magnet 8. The peripheral edge of the bottom surface 10b is a raised convex edge 10C, and the bottom surface 10b surrounded by the convex edge 10C is a concave surface for attracting the ferromagnetic member 12. A connector characterized in that the connector is fitted into a mounting hole formed on the front surface of the plug or plug receiver, leaving an edge 10C.