JP2005209595A - Connector with locking function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector with a locking function capable of preventing disconnection due to carelessness, securing the shut-off state of power when it is pulled out, and having no adverse effects on electric/electronic equipment. <P>SOLUTION: The connector with a locking function of the present invention uses a pin jack 1 and a pin plug 2 for connection. The connector comprises: a recess 14 for a vane formed at an opening of a jack-side insertion hole 12 of the pin jack 1; a groove 15 for sliding linked to the recess 14 and formed at an inner surface of the jack-side insertion hole 12; and a jack-side external terminal 16 projecting to the groove 15 and having a base end projecting from a pin jack body 11. The connector further comprises a vane 25 provided to project near a tip of a plug-side external terminal 24 of the pin plug 2 so as to be inserted to the recess 14. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connector having a lock function and an on / off function. More specifically, the present invention includes a coaxial pin plug and a pin jack, and the circuit is turned on or off by inserting and rotating the pin plug into the pin jack. The present invention relates to a connector that is turned off and has a lock function for preventing dropout.

  In recent years, with the remarkable spread of electrical and electronic devices such as personal computers, audio devices, and mobile phones, peripheral devices attached to them have increased and require a large number of wires. A large number of cords are required to electrically connect the cables.

  However, inadvertently pulling the pin plug from the pin jack due to inadvertent pulling of the pin plug from the pin jack is frequent, and if the pin plug is pulled out of the pin jack with the power turned on, sparks or electrical / electronic equipment and peripheral devices The polarity has changed, overcurrent has flowed through the IC and printed wiring, and noise has come to be a factor that has an adverse effect.

  For this purpose, this type of connector with a locking function is also available on the market, but the locking function that is widely used forms a recess and a protrusion at the connection site between the pin plug and the pin jack, and attaches them together. There is no connector that combines a lock function between the pin plug and the pin jack and a switch mechanism that releases the electrical connection by releasing the lock function.

For example, as a pin jack and pin plug that does not generate noise even when a pin plug is inserted and removed while the power of the device is turned on, the pin jack is concentrically around the central signal pin socket with a jack insulating material. When a pin plug having a coil spring that biases the jack sleeve toward the inserted plug plug is inserted, the plug sleeve first comes into contact with the jack sleeve and the ground wire is first connected. And then the pin is inserted into the pin socket and the signal line is short-circuited (see Patent Document 1), the mechanical action from the outside, and the traction force accidentally applied to the cable. Disconnection between the cable and the connection fixed contact As an electrical connecting device that can be connected, there are a fitting portion to an insulated electric cable and a leg bent inward, and the cross section of the engagement path becomes smaller inward toward the release bottom, and the bottom is predetermined. A tubular connection portion that limits the range of the passage cross section of, and the connection adapter, the connection portion of the adapter is engaged, and provided with a protrusion marking having a cross section larger than the passage cross section of the engagement path defined by the legs, It consists of a connecting fixed contact that makes it possible to engage these legs behind the protrusion marking, and the connecting fixed contact is a protrusion marking by a shoulder-shaped part arranged around the circumference to restrain the leg. The external terminal provided with an opening for inserting the mating contact probe (see Patent Document 2) and the external terminal that is rotatably slidably arranged in the external terminal, and the center contact of the mating contact probe is in contact To do A movable contact member provided with a signal switching electrode pattern electrically connected to the pole pattern and the center electrode pattern, and a fixed contact member arranged in a fixed state in the external terminal and provided with a signal switching electrode pattern; The signal switching electrode pattern formed on the bottom surface of the movable contact member dissociates from the contact / separation electrode pattern when the movable contact member rotates and slides together with the mating contact probe, and the signal path is switched. (See Patent Document 3) and the like.
JP-A-8-241768 (first page) JP 2002-110277 A (first page) JP 2002-208460 A (first page)

  However, for example, a pin jack is composed of a grounding jack sleeve concentrically provided around a central signal pin socket via a jack insulating material, and biases the jack sleeve toward the inserted pin plug side. When a pin plug having a coil spring is inserted, the plug sleeve first contacts the jack sleeve and the ground wire is first shorted, and then the pin is inserted into the pin socket and the signal wire is shorted. Even when a pin plug is inserted or removed while the power is on, noise is not generated, but it does not have a lock function.

  In addition, there are fitting parts to the insulated electric cable and legs bent inward, the cross section of the engagement path becomes smaller inward and reaches the open bottom, and the bottom limits the range of the predetermined passage cross section A tubular connection portion, a connection adapter, and a connection portion of the adapter that are engaged with each other and provided with protrusion markings having a cross section larger than the passage cross section of the engagement path defined by the legs, and these legs are provided behind the protrusion markings. In the case where the connection fixed contact is provided with a protrusion mark by a shoulder-like portion arranged along the circumference in order to restrain the leg, the connection fixed contact enables the engagement. The mechanical action and the traction force that is accidentally applied to the cable are less likely to cause partial disconnection, and can be connected between the cable and the connection fixed contact. I'm doing Releasing electrical connection were those in need of the operation of the power switch.

  Furthermore, an external terminal provided with an opening into which the mating contact probe is inserted, and a center electrode pattern and a center electrode pattern which are arranged in the external terminal so as to be slidable and slidable, and which the center contact of the mating contact probe contacts. A mating contact probe comprising a movable contact member provided with an electrically connected signal switching electrode pattern and a fixed contact member disposed in a fixed state in the external terminal and provided with a signal switching electrode pattern. When the movable contact member rotates and slides and the signal switching electrode pattern formed on the bottom surface of the movable contact member dissociates from the contact / separation electrode pattern and the signal path is switched, the signal path is switched. The lock function was not provided.

  In view of the above-mentioned problems, the connector with a lock function according to the present invention is a result of diligent research. As a result, the pin jack is a pin jack body, a jack side insertion hole formed in the pin jack body, and a jack erected in the jack side insertion hole. In addition to the side center terminal, the blade recess formed in the opening of the jack side insertion hole, the sliding groove formed in communication with the blade recess, the jack side external terminal protruding into the sliding groove, The pin jack body is provided with a second jack side external terminal which is internally provided with a recess formed so as to protrude to the inner periphery of the jack side insertion hole, and the pin plug has an insulating mold and a plug side insertion hole formed in the insulating mold. In addition, a plug-side center terminal provided so as to pass through the bottom of the plug-side insertion hole and project to the inner peripheral surface, a plug-side external terminal attached to the outer periphery of the insulating mold, and a plug A second plug-side external terminal that is exposed to the outside with a slight width and has a base end side that penetrates the insulating mold, and a blade that protrudes from the plug-side external terminal. is there.

  The connector with a lock function of the present invention is not electrically connected when the pin plug is inserted into the pin jack, and is locked by turning the pin plug and is electrically connected to the on state. When unplugging from the jack, the lock is released by turning the pin plug from the on-state and the on-state is switched to the off-state. Is an innovative and highly practical invention that does not adversely affect electronic and electrical equipment.

  The present invention relates to a connector having a lock function and an on / off function. More specifically, the present invention includes a coaxial pin plug and a pin jack, and the circuit is turned on or off by inserting and rotating the pin plug into the pin jack. The connector with a lock function according to claim 1 is a connector with a lock function connected by a pin jack 1 and a pin plug 2. The pin jack 1 has a pin jack main body 11 formed of an insulating member, a jack side insertion hole 12 through which the pin plug 2 formed in the pin jack main body 11 is inserted, and a bottom portion of the jack side insertion hole 12. A jack-side center terminal 13 erected at the center and at least an opening formed in the jack-side insertion hole 12; Two blade recesses 14, a sliding groove 15 that is in communication with the blade recess 14 and carved in the inner periphery of the jack-side insertion hole 12, and a distal end that protrudes deeply into the sliding groove 15 and a base end that is a pin jack The pin plug 2 has an insulating mold 21 formed of a substantially cylindrical insulating member and a jack side central terminal 13 formed at the center of the insulating mold 21. A plug-side insertion hole 22, a plug-side center terminal 23 provided so as to penetrate the bottom of the plug-side insertion hole 22 and project to the inner peripheral surface, and a base end attached to the outer periphery of the insulating mold 21. A plug-side external terminal 24 projecting toward the base end side of the mold 21, and at least one blade 2 projecting from the distal end side of the plug-side external terminal 24 so as to be inserted into the blade recess 14. It is those with a door.

  Furthermore, the connector with a lock function according to claim 2 is a connector with a lock function connected by a pin jack 1 and a pin plug 2, the pin jack 1 being a pin jack main body 11 formed of an insulating member, A jack-side insertion hole 12 through which the pin plug 2 formed in the pin jack main body 11 is inserted, a jack-side center terminal 13 penetrating through the bottom of the jack-side insertion hole 12, and the jack-side insertion hole 12 at least one blade recess 14 formed in the opening, a sliding groove 15 in communication with the blade recess 14 and engraved on the inner periphery of the jack-side insertion hole 12, and at the back of the sliding groove 15 A jack-side external terminal 16 having a distal end projecting and a proximal end projecting from the pin jack body 11, and a pin jack body projecting to the inner periphery of the jack-side insertion hole 12 1 is provided with a second jack-side external terminal 18 formed with a recess 17 in the interior, and the pin plug 2 is formed in a substantially cylindrical insulating mold 21 formed of an insulating member, and at the center of the insulating mold 21. A plug-side insertion hole 22 through which the jack-side center terminal 13 is inserted; a plug-side center terminal 23 provided so as to pass through the bottom of the plug-side insertion hole 22 and protrude toward the inner peripheral surface; The plug-side external terminal 24 whose base end is protruded toward the base end side of the insulating mold 21 and is slightly exposed to the plug-side external terminal 24 and is exposed to the outside of the front end side of the insulating mold 21. In addition, the base end side protrudes so as to be inserted into the blade concave portion 14 at the distal end side of the plug-side external terminal 24 and the second plug-side external terminal 26 penetrating the insulating mold 21 in the vertical direction. It was those having at least one vane 25.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description will be given with reference to the drawings of an embodiment of a connector with a lock function of the present invention. FIG. 1 is a front view showing a cross section for explaining an outline of a pin jack of an embodiment of a connector with a lock function of the present invention. 2 is a cross-sectional side view for explaining an outline of the pin jack of the embodiment of the connector with a locking function of the present invention, and FIG. 3 is a pin plug of the embodiment 1 of the connector with a locking function of the present invention. FIG. 4 is a side view in cross section for explaining the outline of the pin plug of Example 1 of the connector with a locking function of the present invention, and FIG. FIG. 6 is a cross-sectional front view for explaining the outline of the pin plug of the second embodiment of the connector with a locking function of the invention, and FIG. 6 explains the outline of the pin plug of the second embodiment of the connector with a locking function of the present invention. It is a side view of the order of the cross-section.

  That is, the connector with a locking function of the present invention is locked by inserting the pin plug 2 of the first embodiment shown in FIGS. 3 and 4 through the pin jack 1 shown in FIGS. In this case, the connector is a two-pole connector, or the pin plug 2 of the second embodiment shown in FIGS. 5 and 6 is connected to the pin jack 1 shown in FIGS. It is locked and electrically connected by inserting and turning, and in this case, it becomes a three-pole connector.

  The pin jack body 11 of the pin jack 1 is formed of an insulating member such as a synthetic resin as shown in FIGS. 1 and 2, and is formed from a plurality of parts in consideration of manufacturing and assembly. These are integrated by means such as welding or the like, and are attached by exposing an opening of a jack side insertion hole 12 to be described later on the surface of an electronic electric device or a peripheral device (not shown).

  Next, the jack side insertion hole 12 is for inserting a pin plug 2 to be described later, and is formed substantially at the center of the pin jack main body 11, and a jack side center terminal 13 to be described later is erected at the center. It is what.

  Next, the jack-side center terminal 13 is formed of a conductive metal and passes through the bottom of the jack-side insertion hole 12 so as to stand at the center. The connecting terminal piece 13a is connected to a lead wire (not shown) provided in the above, and connected by means such as soldering.

  Further, the blade recess 14 is formed in the opening of the jack side insertion hole 12, and in the embodiment, two are formed, but one or two or more may be used. The jack side insertion hole 12 is engraved in a substantially rectangular shape from the surface of the opening to the base end side, and the lower part communicates with a sliding groove 15 described later. The blade | wing 25 which protruded in this is inserted.

  Further, the sliding groove 15 is formed in the circumferential direction of the inner periphery of the jack-side insertion hole 12 so as to communicate with the blade recess 14, and a later-described blade 25 inserted through the blade recess 14 is circumferentially arranged. It slides in the direction.

  Next, the jack-side external terminal 16 is formed of a conductive metal and has a distal end projecting into the sliding groove portion 15, and the base end side is provided in an electronic electric device or the like by penetrating the wall surface of the pin jack body 11. Further, a connecting terminal piece 16a connected to a lead wire (not shown) by means such as soldering is extended.

  As shown in FIGS. 3 and 4, the insulating mold 21 of the pin plug 2 according to the first embodiment has a substantially cylindrical shape having a bottom formed of an insulating member such as a synthetic resin. The plug-side external terminal 24 is attached, and the base end side is inserted through a cap 27 described later.

  Next, the plug-side insertion hole 22 is formed at the center of the insulating mold 21 and allows the jack-side center terminal 13 to be inserted therein.

  Further, the plug-side center terminal 23 is made of a conductive metal, the tip side is a contact portion with the jack-side center terminal 13 opposed to a substantially U shape, and the base end side is a lead wire (not shown) at the tip of the cord. ) And a connecting terminal piece 23a that is connected by means such as soldering, and the connecting terminal piece 23a passes through the bottom of the plug-side insertion hole 22, and the contact portion is a plug-side insertion hole. 22 is formed so as to protrude inward from the inner peripheral surface of the plug-side insertion hole 22 by the elasticity of the material characteristics of the plug-side center terminal 23. is there.

  Further, the plug-side external terminal 24 is made of a conductive metal and is formed in a substantially tubular shape, and is attached to the outer periphery of the central side of the insulating mold 21. A lead wire (not shown) at the distal end of the cord is provided on the proximal end side. And a connecting terminal piece 24a that is connected to the base end side along the outer periphery of the insulating mold 21 and is screwed into a screw formed on the inner side of the distal end of the cap 27 to be described later. In the case where the cap 27 is not provided, the screw portion is not necessary.

  Next, in the embodiment, two blades 25 are provided in a projecting manner, but one or more blades 25 may be provided, and a substantially rectangular shape projecting in the horizontal direction of the distal end side of the plug-side external terminal 24. It is plate-shaped and is inserted into a blade recess 14 formed so as to match the opening of the jack side insertion hole 12.

  Next, in the illustrated embodiment, a cylindrical cap 27 is provided, and the proximal end side of the insulating mold 21 is inserted into the distal end side of the cylindrical cap 27, and the proximal end side of the cylindrical cap 27 is disposed around the periphery. A cord (not shown) from a device or the like is inserted through the tip, and a screw portion that is screwed with a screw portion screwed on the base end side of the plug-side external terminal 24 is screwed on the tip side. However, the cap 27 is optional.

  That is, the connector with a lock function of the present invention is to insert the pin plug 2 into the jack side insertion hole 12 of the pin jack 1 mounted on the electronic or electric device or peripheral device, and when inserted, the insulating mold 21 of the pin plug 2 is inserted. The jack-side center terminal 13 is inserted into the plug-side insertion hole 22 and comes into contact with the respective contacts, and the blades 25 projecting from the plug-side external terminal 24 mounted on the outer periphery of the insulating mold 21 are open to the jack-side insertion hole 12. The blade 25 is inserted into the recessed portion 14 for the blade formed in the portion. When the blade 25 is rotated in the inserted state, the blade 25 slides on the sliding groove portion 15 to be in a locked state, and the blade 25 serves as a contact to form the sliding groove portion 15. It contacts with the contact of the jack side external terminal 16 protruded in the back, and will be in an energized state.

  In this case, even if the cord extended to the pin plug 2 is inadvertently pulled, the blade 25 protruding from the plug-side external terminal 24 is located in the sliding groove portion 15 so that it does not come out and has a locking function and is energized. Is maintained.

  When the pin plug 2 is removed from the pin jack 1, the pin plug 2 is rotated and the blade 25 is pulled out to the front according to the position of the blade recess 14. The blades 25 projecting from the external terminal 16 and the plug-side external terminal 24 are separated from each other, and the electrical connection is cut off. In this state, the blade 25 can be removed or inserted, and pulled out carelessly. Is also in an off state.

  Next, the three-pole connector of the second embodiment is one in which poles are further added to the above-described two-pole connector of the first embodiment, but the basic configuration is the same and is omitted.

  That is, the pin jack 1 is provided with the pin jack main body 11, the jack side insertion hole 12, the jack side center terminal 13, the blade recess 14, the sliding groove 15 and the jack side external terminal 16 in the same manner as in the first embodiment. In addition, a recess 17 is formed in the pin jack main body 11 so that the second jack-side external terminal 18 protrudes to the inner periphery of the jack-side insertion hole 12, and the recess 17 is made of a conductive metal and is substantially U The connecting terminal piece 16a connected to the lead wire (not shown) extends through the pin jack main body 11 and is internally bent.

  Further, the pin plug 2 is provided with the insulating mold 21, the plug side insertion hole 22, the plug side center terminal 23, the plug side external terminal 24, and the blade 25 in the same manner as in the first embodiment. As shown in the drawing, the second plug-side external terminal 26 is slightly wider than the plug-side external terminal 24 attached to the central side of the insulating mold 21 and is exposed to the outside of the distal end side. The side is provided with a connecting terminal piece 26a extending through the insulating mold 21 in the vertical direction and connected to a lead wire (not shown) of the cord.

  In this case, it becomes a three-pole connector. When the blade 25 of the pin plug 2 is inserted into the blade recess 14 of the pin jack 1 so as to be inserted, the respective contacts of the jack-side center terminal 13 and the plug-side center terminal 23 are connected. The contact between the second jack-side external terminal 18 and the second plug-side external terminal 26 is in contact, but the blades 25 projecting from the plug-side external terminal 24 and the sliding groove 15 The contact of the jack-side external terminal 16 that protrudes to the left is separated and is in an off state.

  By rotating the pin plug 2, the blade 25 is brought into an ON state by contacting the contact of the jack-side external terminal 16 that slides in the sliding recess 15 and protrudes to the back of the sliding recess 15. .

  Next, when the pin plug 2 is pulled out from the pin jack 1, the pin plug 2 is rotated and the blade 25 is pulled out to the front in accordance with the position of the blade recess 14. The blades 25 projecting from the side external terminal 16 and the plug side external terminal 24 are separated from each other and the electrical connection is cut. In this state, the blade 25 can be removed or inserted, and pulled out carelessly. However, it is in an off state.

  Even if the pin jack 1 is formed for two poles and connected using the pin plug 2 for two poles, the pin jack 1 for two poles can be inserted by forming for the three poles and not connecting one pole. Can be used as a two-pole connector.

  The connector with a lock function according to the present invention is suitable for a connector such as a table connector used in an office or the like where an OA device such as a personal computer, a word processor, and a copying machine is frequently used.

  FIG. 1 is a cross-sectional front view for explaining an outline of a pin jack of an embodiment of a connector with a locking function of the present invention.   FIG. 2 is a cross-sectional side view for explaining the outline of the pin jack of the embodiment of the connector with a locking function of the present invention.   FIG. 3 is a cross-sectional front view for explaining the outline of the pin plug according to the first embodiment of the connector with a locking function of the present invention.   FIG. 4 is a cross-sectional side view for explaining the outline of the pin plug according to the first embodiment of the connector with a locking function of the present invention.   FIG. 5 is a cross-sectional front view for explaining the outline of the pin plug according to the second embodiment of the connector with a locking function of the present invention.   FIG. 6 is a cross-sectional side view for explaining the outline of the pin plug of the embodiment 2 of the connector with a locking function of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pin jack 11 Pin jack main body 12 Jack side insertion hole 13 Jack side center terminal 13a Connection terminal piece 14 Blade | wing recessed part 15 Sliding groove part 16 Jack side external terminal 16a Connection terminal piece 17 Recess 18 External of the 2nd jack side Terminal 2 Pin plug 21 Insulation mold 22 Plug side insertion hole 23 Plug side center terminal 23a Connection terminal piece 24 Plug side external terminal 24a Connection terminal piece 25 Blade 26 Second plug side external terminal 26a Connection terminal piece 27 Cap

Claims (2)

  A connector with a lock function connected by a pin jack and a pin plug, wherein the pin jack is a pin jack main body formed of an insulating member, a jack side insertion hole through which the pin plug formed in the pin jack main body is inserted, A jack-side center terminal that passes through the bottom of the jack-side insertion hole and is erected at the center; at least one blade recess formed in the opening of the jack-side insertion hole; A sliding groove formed on the inner periphery of the insertion hole, and a jack-side external terminal having a distal end protruding from the back of the sliding groove and a proximal end protruding from the pin jack body, the pin plug is formed of an insulating member. A substantially cylindrical insulating mold, a plug side insertion hole through which the jack side center terminal formed at the center of the insulation mold is inserted, and a bottom portion of the plug side insertion hole. A plug-side center terminal provided so as to protrude to the inner peripheral surface, a plug-side external terminal mounted on the outer periphery of the insulating mold and having a base end protruding to the base end side of the insulating mold, and the plug-side external A connector with a locking function, comprising: at least one blade projecting so as to be inserted into the blade insertion recess at a tip side of a terminal.   A connector with a lock function connected by a pin jack and a pin plug, wherein the pin jack is a pin jack main body formed of an insulating member, a jack side insertion hole through which the pin plug formed in the pin jack main body is inserted, A jack-side center terminal that passes through the bottom of the jack-side insertion hole and is erected at the center; at least one blade recess formed in the opening of the jack-side insertion hole; A sliding groove formed on the inner periphery of the insertion hole, a jack-side external terminal having a distal end protruding from the back of the sliding groove and a proximal end protruding from the pin jack body, and an inner periphery of the jack-side insertion hole A pin jack main body having a recess formed in the pin jack main body so as to protrude, and the pin plug is a substantially cylindrical insulating molding formed of an insulating member. A plug-side insertion hole through which the jack-side center terminal formed at the center of the insulating mold is inserted; a plug-side center terminal provided so as to penetrate the bottom of the plug-side insertion hole and protrude to the inner peripheral surface; A plug-side external terminal that is mounted on the outer periphery of the insulating mold and has a base end protruding toward the base end side of the insulating mold, and is exposed to the outside of the distal end side of the insulating mold with a slight width from the plug-side external terminal. A second plug-side external terminal whose base end is vertically penetrated through the insulating mold, and at least one projecting so as to be inserted into the blade insertion recess at the distal end side of the plug-side external terminal A connector with a locking function characterized by comprising a blade.

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