JP2009199942A - Magnet type electric outlet adapter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnet type electric outlet adapter capable of preventing a middle cover from dropping out accompanied by a pulling-out action of a second adapter half-body. <P>SOLUTION: The magnet type electric outlet adapter comprises a first adapter half-body A composed of a body 1 with inserting holes 13a, 14a wherein a terminal 11 projecting a pair of plug blades 10 capable of being inserted into and pulling out of an electric outlet and electrically connected with the plug blade 10 and a pair of terminal pins 20 are inserted, and a second adapter half-body B composed of a body 2 for storing the pair of terminal pins 20 electrically connected with the terminal 11 via the inserting holes 13a, 14a and a blade-receiving section. The body 1 has a middle cover 13 preparing inserting holes 13a and maintaining a magnet 16, an opening 1e for making the one surface face of the middle cover 13 face the outside is arranged on a bottom face 1b of the body 1, and a locking section 1d for locking the middle cover 13 in the inserting direction of the terminal pin 20 is arranged on an inner peripheral edge of the opening 1e. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a magnetic outlet adapter that is interposed between an outlet and a plug that can be connected to the outlet, and enables the outlet and the plug to be magnetically connected.

  Conventionally, a magnet is used to prevent disconnection of the cord when an external force is applied to the cord of the plug or to prevent the electric device to which the cord is connected from falling over a general outlet. Magnetic outlets are used that allow the plug to be removed from the outlet with a weak pulling force, but such magnetic outlets have a special shape, unlike ordinary outlets. Construction was necessary. Therefore, in order to obtain the same function as a magnetic outlet without performing electrical work, a magnetic outlet adapter is provided that is interposed between the outlet and the plug so that they can be magnetically attached. It is disclosed in Document 1.

  This conventional example is composed of a first adapter half connected to an outlet provided on a wall surface, and a second adapter half connected to a plug connected to an external load. The first adapter half includes a pair of plug blades that can be connected to an outlet port of an outlet provided on a wall surface on one side, an insertion hole that is provided on the other side and into which a pair of terminal pins are inserted, and The second adapter half has a pair of terminal pins on one surface side and the other surface side on the other surface side. The second adapter half has a terminal portion that electrically connects the terminal pin inserted through the insertion hole and the plug blade. A plug body having a blade receiving portion to which a plug blade of a plug can be connected and electrically connected to a terminal pin, and the first adapter half and the second adapter half are connected to the first adapter half. Installed on the provided magnet and second adapter half Bound to the magnetic attraction force acting between the obtained magnetically attached pieces.

Further, the first adapter half body is formed so that one surface provided with the plug blade and the other surface provided with the insertion hole are orthogonal to each other, and the first adapter half is provided on the wall surface. When connected to a provided outlet, the other side faces the ground. Thus, the magnet type outlet adapter becomes compact as a whole, and the amount of protrusion from the wall surface can be suppressed.
Japanese Patent Laying-Open No. 2005-243312

  By the way, in the above-described conventional example, an insertion hole through which the terminal pin is inserted is provided on one side in the body of the first adapter half, and an inner cover for holding the magnet is accommodated. On the other surface side of the body container, an opening is provided so that the one surface of the inner cover faces the outside. For this reason, when pulling out the second adapter half connected to the first adapter half, a load is applied to the inner cover by the magnetic force acting between the magnet and the magnetic piece, and the second adapter half is pulled. As the body is pulled out, the middle cover may drop off from the first adapter half body through the opening.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a magnet type outlet adapter that can prevent the middle cover from dropping off with the operation of pulling out the second adapter half. To do.

  In order to achieve the above object, a pair of plug blades that can be inserted into and removed from an existing outlet are provided on one side and a terminal portion that is electrically connected to the plug blade, and a pair of terminals. A first adapter half comprising a container having an insertion hole through which the pin is inserted; a pair of terminal pins electrically connectable to the terminal portion through the insertion hole; and an electrical connection to the terminal pin; The first adapter half and the second adapter half are composed of a second adapter half composed of a container housing a blade receiving portion for receiving a plug plug blade provided in the plug that can be inserted into and removed from the outlet. The second adapter half can be attached to and detached from the first adapter half by a magnetic force acting between a magnet provided on one of the magnets and a magnetized piece made of a magnetic material provided on the other. Combined magnetic outlet adapter The first adapter half is provided with an inner cover in which the insertion hole penetrates one surface and holds either a magnet or a magnetized piece. An opening is provided so that the one surface of the middle cover faces the outside, and a locking portion for locking the middle cover in the insertion direction of the terminal pin is provided on the inner peripheral edge of the opening.

  According to a second aspect of the present invention, in the first aspect of the present invention, the terminal portion comprises a contact spring that is elastically contacted with the terminal pin and is flexible in the insertion direction of the terminal pin. A stopper for limiting the amount of deflection of the contact spring is provided.

  According to the first aspect of the present invention, since the load applied to the inner cover is received by the locking portion when the second adapter half connected to the first adapter half is pulled out, the second adapter half is pulled out. It is possible to prevent the inner cover from falling off during operation.

  According to the invention of claim 2, even if the contact spring is pressed by the terminal pin with an excessive force, the contact spring can be prevented from being deformed because the amount of bending of the contact spring is limited by the stopper. . Therefore, it is possible to prevent the contact resistance from increasing due to a decrease in the contact pressure accompanying the deformation of the contact spring, thereby generating heat.

  Hereinafter, embodiments of a magnetic outlet adapter according to the present invention will be described with reference to the drawings. In this embodiment, as shown in FIGS. 1A to 1C, a pair of plug blades 10 that can be inserted into and removed from an outlet (not shown) of an existing outlet (not shown) on one surface of a wall project. A first adapter half A comprising a container body 1 having a terminal portion 11 that is provided and electrically connected to the plug blade 10 and insertion holes 13a and 14a through which a pair of terminal pins 20 are inserted; A pair of terminal pins 20 that can be electrically connected to the terminal portion 11 through the holes 13a and 14a, and a plug (not shown) that is electrically connected to the terminal pins 20 and that can be inserted into and removed from the outlet. A magnet provided on the first adapter half A, comprising a second adapter half B comprising a container body 2 for receiving a blade receiving portion (not shown) for receiving a plug plug blade (not shown). 16 and the magnetic body provided in the second adapter half B The second adapter half B by magnetic attraction force acting between the magnetic attraction piece 21 made is removably coupled to the first adapter half A.

  As shown in FIG. 2 (a), the container 1 of the first adapter half A has a front surface 1a that is one surface connected to an outlet and a bottom surface that is one surface to which the second adapter half B is connected. It has a portion 1b and is formed of a curved body that is curved from the front surface portion 1a to the bottom surface portion 1b, and an insertion hole (not shown) through which the plug blade 10 is inserted penetrates the front surface portion 1a. . On both sides of the container body 1 (the front side and the back side in FIG. 2A) are respectively provided with recessed gripping portions 1c, and the gripping portions 1c are gripped by fingers. This makes it easier to hold the body 1. As shown in FIG. 1 (b), an opening 1e is provided on the bottom surface portion 1b of the container body 1 so that one surface through which an insertion hole 13a of a middle cover 13 described later is penetrated is exposed to the outside.

  As shown in FIG. 1 (a), the inner body 12 of the box body in which a pair of plug blades 10 project is inserted into the insertion hole through the insertion hole. It is stored in the form. The middle body 12 has a plug blade 10 disposed at one end thereof and a terminal portion 11 disposed at the other end, and one surface of the other end facing the terminal pin 20 is the insertion direction of the terminal pin 20. It is designed to be parallel to an orthogonal plane. As shown in FIGS. 3A and 3B, the terminal portion 11 is composed of a contact spring 11a that elastically contacts the terminal pin 20 and is flexible in the insertion direction of the terminal pin 20. The stopper blade 10 and the terminal pin 20 are electrically connected by elastically contacting the contact spring 11a.

  Further, the middle body 12 is integrally formed with a stopper 12a that abuts against one end of the contact spring 13 that contacts the terminal pin 20 and limits the amount of bending in the insertion direction of the one terminal pin 20. . Thus, even if the contact spring 11a is pressed by the terminal pin 20 with an excessive force, it is possible to prevent the contact spring 11a from being deformed because the amount of bending of the contact spring 11a is limited by the stopper 12a. it can. For this reason, it is possible to prevent the contact resistance from increasing due to a decrease in the contact pressure accompanying the deformation of the contact spring 11a.

  As shown in FIG. 3 (b), an insertion hole 13 a through which the terminal pin 20 is inserted is provided on one side on the bottom surface portion 1 b side inside the container body 1, and an intermediate cover 13 that holds the magnet 16. A door body 15 that is rotatable between a position for closing the insertion hole 13a and a position for opening the insertion hole 13a, and an inner frame 14 that is provided with an insertion hole 14a that communicates with the insertion hole 13a and that holds the door body 15. Is stored.

  The middle cover 13 is formed in a long flat plate shape, and a pair of substantially circular insertion holes 13a are provided in a substantially central portion in the longitudinal direction. Further, as shown in FIG. 4, a flat magnet 16 and a pair of flat yokes 17 holding the magnet 16 are held at both ends in the longitudinal direction. As shown in FIG. 1 (b), one end of each yoke 17 is exposed to the outside through two pairs of substantially rectangular through holes 13b penetrating at both ends in the longitudinal direction across the pair of insertion holes 13a. It is open to the public. Thus, the first adapter half A and the second adapter half B are coupled by the magnetic force acting between the yoke 16 and the magnetic piece 21. In addition, a convex positioning convex portion 13 c that protrudes in a direction opposite to the insertion direction of the terminal pin 20 is provided at a substantially central portion in the longitudinal direction of the middle cover 13.

  In the present embodiment, the magnet 16 and the yoke 17 are disposed at both ends in the longitudinal direction of the middle cover 13, but for example, as shown in FIGS. A configuration may be adopted in which substantially elliptical magnets 16 are held at both ends in the longitudinal direction, and a part of the magnets 16 is exposed to the outside via the substantially circular through holes 13b.

  As shown in FIG. 4, the middle frame 14 is formed in a long flat plate shape, and a pair of substantially oval insertion holes 14 a communicating with the insertion holes 13 a of the inner cover 13 are provided through the longitudinal direction. . The middle frame 14 holds the door body 15 with the middle cover 13. Further, the middle frame 14 is provided with a spring member 14b that urges the door body 15 so that the door body 15 closes the insertion hole 13a when the terminal pin 20 is not inserted into the insertion hole 13a ( (Refer FIG.3 (b)). The door body 15 is pressed and rotated by the distal end portion of the terminal pin 20 inserted into the insertion hole 13a to open the insertion hole 13a. In addition, since the above door bodies 15 are well-known, detailed description shall be abbreviate | omitted here.

  As shown in FIGS. 2A and 2B, the second adapter half B includes a pair of terminal pins 20, a pair of magnetized pieces 21, and a pair of blade receiving portions. It is prepared for the body 2. A pair of terminal pins 20 are juxtaposed along the short direction at a substantially central portion of the upper surface (the upper surface in FIG. 2A) of the container body 2, and at both ends of the upper surface in the longitudinal direction. The magnetized pieces 21 are disposed respectively. A substantially arcuate shape in which a plug plug blade of a plug provided in a load (not shown) of an electric device or the like can be inserted and removed at a substantially central portion of the lower surface (the lower surface in FIG. 2A) of the container body 2. A pair of plug blade insertion holes 2a are provided. In addition, a concave positioning recess 2b that is recessed in the normal direction of the upper surface is provided along the longitudinal direction of the upper surface at a position between the terminal pins 20 on the upper surface of the vessel body 2. The first adapter half A and the second adapter half B can be positioned by fitting the positioning protrusions 19b of one adapter half A.

  Here, in the present embodiment, as shown in FIG. 1A, the angle formed between the normal direction of the front surface portion 1a and the normal direction of the bottom surface portion 1b of the container body 1 of the first adapter half A is It is formed to have an obtuse angle. That is, since the angle formed by the insertion / extraction direction of the plug blade 10 and the insertion / extraction direction of the terminal pin 20 is an obtuse angle, the amount of protrusion in the horizontal direction can be suppressed, and the insertion / extraction of the plug blade 10 as in the conventional example is possible. The second adapter half B can be easily attached to and detached from the first adapter half A as compared with the case where the angle formed by the direction and the insertion / extraction direction of the terminal pin 20 is a right angle.

  Further, as shown in FIGS. 1A to 1C, a substantially triangular locking portion 1d is integrally formed at the four corners of the inner peripheral edge of the opening 1e on the bottom surface portion 1b of the vessel body 1, respectively. Each locking portion 1d comes into contact with the four corners of the inner cover 13. For this reason, when pulling out the second adapter half B connected to the first adapter half A, the four corners of the inner cover 13 come into contact with the locking portions 1d, so that the magnet 16 and the magnetized piece 21 Thus, the load applied to the intermediate cover 13 by the magnetic adhesion force acting between the two can be received by each locking portion 1d. Thus, it is possible to prevent the middle cover 13 from falling off with the operation of pulling out the second adapter half B.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows embodiment of the magnet type | mold outlet adapter which concerns on this invention, (a) is a side view, (b) is a bottom view, (c) is sectional drawing. It is a figure which shows the 2nd adapter half body same as the above, (a) is the perspective view seen from the upper side, (b) is the perspective view seen from the lower side. It is explanatory drawing inside the container of the 1st adapter half body same as the above, (a) is the perspective view which abbreviate | omitted one part, (b) is sectional drawing. It is the perspective view which abbreviate | omitted partially which shows arrangement | positioning of a magnet and a yoke same as the above. It is a figure which shows the other structure of a magnet same as the above, (a) is a bottom view, (b) is the perspective view which abbreviate | omitted one part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Body 1d Locking part 1e Opening 10 Plug blade 11 Terminal part 13 Middle cover 13a, 14a Insertion hole 16 Magnet 20 Terminal pin 21 Magnetic attachment piece A 1st adapter half body B 2nd adapter half body

Claims (2)

  A pair of plug blades that can be inserted into and removed from an existing outlet on one side, a terminal portion that is electrically connected to the plug blade, and a container body that has an insertion hole through which the pair of terminal pins are inserted. An adapter half, a pair of terminal pins that can be electrically connected to the terminal portion through the insertion hole, and a plug plug blade provided on the plug that is electrically connected to the terminal pin and can be inserted into and removed from the outlet. A second adapter half comprising a container for receiving the blade receiving portion, a magnet provided on one of the first adapter half and the second adapter half, and provided on the other A magnetic outlet adapter in which the second adapter half is detachably coupled to the first adapter half by a magnetic force acting between the magnetic pieces made of the magnetic material, the first adapter Half the body A hole is provided and an inner cover is provided to hold either the magnet or the magnetized piece, and the first adapter half body is provided with an opening that faces the one surface of the inner cover to the outside. A magnet type outlet adapter characterized in that a locking portion for locking a middle cover in the insertion direction of the terminal pin is provided on the inner peripheral edge of the opening.   The terminal portion is formed of a contact spring that elastically contacts with the terminal pin and can be freely bent in the insertion direction of the terminal pin, and the first adapter half body is provided with a stopper for limiting the amount of bending of the contact spring. The magnet type outlet adapter according to claim 1.

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