JP2011181199A - Mating structure and electrical connector using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mating structure, capable of being early mated with another connector with a screw-system mating structure already mounted on an equipment or the like, in mating two connectors. <P>SOLUTION: In the mating structure of a plug connector 20 and a counterpart connector, only by linearly inserting the plug connector 20 and then, inserting a coupling ring 26, a tip of a protruded piece 30 of the plug connector gets engaged with a screw part 60 of the counterpart connector to have the plug connector 20 mated with the counterpart connector. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a connector used in electrical equipment and electronic equipment such as robots, machine tools, and device control panels, and in particular, a fitting structure capable of speed fitting when mating with a mating connector that has already been attached. It is an electrical connector.

Usually, an electrical connector is configured such that a power source and an electrical signal can be connected between devices such as a main body (facility / machine) and a control (control device) by fitting two connectors together. That is, the two connectors are connected to a board, a cable, or the like. The electrical connector has a fitting structure which is a fitting means for fitting two connectors.
As the fitting means, a one-touch lock system as shown in FIG. 2 of Patent Document 1 (Japanese Utility Model Laid-Open No. 04-115777) already proposed by the present applicant or a diagram of Patent Document 2 (Japanese Patent Laid-Open No. 2005-285333). 1 and a one-touch lock method and a screw method as shown in FIG. 1 of Patent Document 3 (Japanese Patent Application No. 2009-105777). Moreover, the thing which can be fitted just by inserting one like patent document 4 (Japanese Patent Application No. 2009-130684) which the present applicant has already proposed can be mentioned.

According to the summary of Japanese Utility Model Laid-Open No. 04-115777 of Patent Document 1, it is intended to provide a connector that can easily constitute a ground circuit without using a lead wire for ground circuit connection, A cylindrical shell 2 having an insertion hole 3, an insulating front insulator 4 disposed in the shell 2, and an approximately cylindrical insulator leaf 5 having elasticity formed to face the insertion hole 3. And an insulating rear insulator 6 disposed in the shell 2 so as to face the front insulator 4, and a contact 7 inserted into the insertion hole 3 and the insulator leaf 5 and locked to the insulator leaf 5. , The ground lug 50 is provided in at least one of the insertion hole 3 and the insulator leaf 5, and the ground lug 50 is a spring piece. 1 and a strip piece 52 extending from the spring piece 51, and the spring piece 51 is in electrical contact with the contact 7, and the strip piece 52 has tip portions of the front insulator 4 and the rear insulator 6. A connector is disclosed that protrudes outward from the outer peripheral surface and is in electrical contact with the shell 2. Incidentally, as claimed in claim 1 of the utility model registration claim, a cylindrical shell having conductivity, an insulating front insulator having an insertion hole and disposed in the shell, and facing the insertion hole. An insulating rear insulator disposed in the shell so as to face the front insulator, and the insulator inserted into the insertion hole and the insulator leaf. In the connector including the contact locked to the leaf, at least one of the insertion hole and the insulator leaf is provided with a ground lug, and the ground lug includes a spring piece and a strip-like piece extending from the spring piece. The spring piece is in electrical contact with the contact, and the belt-like piece has a tip portion thereof. Serial connector, wherein there is disclosed that the front insulator and protrudes outward from the outer peripheral surface of the rear insulator is for electrical contact with the shell. The fitting method is the one-touch lock method shown in FIG. According to the summary of Japanese Patent Application Laid-Open No. 2005-285333 of Patent Document 2, it is an object of the present invention to provide a single waterproof connector having a rear release structure that can be easily assembled even when the pitch is narrowed and does not increase the cost. A retainer ring 70 for fixing the shell 60, the intermediate insert 30, the front insert 20, the rear insert 40, and the three inserts 20, 30, 40 to the receptacle shell 60 in the order of the front 20, the intermediate 30, and the rear 40. In the single waterproof crimp connector 10 having the crimp pin contact 50 to be mounted, at least one engagement means is provided on the intermediate insert 30 side or the front insert 20 side of the front insert 20 or the intermediate insert 30, Alone waterproof crimp connector which can be achieved by providing the latching means at a position corresponding to the insert 30 or the front insert 20 on the engagement means of the front insert 20 or the intermediate insert 30 is disclosed. By the way, as claim 1 of the claims, a receptacle shell, an intermediate insert made of an insulating material having an insertion hole for a plurality of crimp pin contacts and attached to the receptacle shell, and the same number of crimp pins as the intermediate inserts A front insert made of an insulating elastic body that has a contact insertion hole and is held on the front side of the intermediate insert, and has the same number of crimp pin contact insertion holes as the intermediate insert, and the insertion hole has contact retention. A rear insert made of an insulating material provided on the rear surface of the intermediate insert, a retainer ring for fixing the intermediate insert, the front insert and the rear insert to the receptacle shell, and the intermediate insert, the front insert and the rear insert A single waterproof crimp connector having a crimp pin contact attached to an insert having a rear release structure composed of a seat, wherein at least one or more of the front insert or the intermediate insert on the intermediate insert side or the front insert side 3. A single waterproof crimp connector comprising: an engaging means; and a locking means provided on the intermediate insert or the front insert at a position corresponding to the engaging means of the front insert or the intermediate insert. As the engagement means, at least one engagement protrusion protruding toward the intermediate insert side or the front insert side of the front insert or the intermediate insert is provided, and the intermediate insert is used as the locking means. 2. The single waterproof crimp according to claim 1, wherein a locking portion that engages with the engaging protrusion is provided at a position corresponding to the engaging protrusion of the front insert or the intermediate insert on the insert or the front insert. A connector, as claimed in claim 3, wherein at least one engaging protrusion projecting toward the intermediate insert side of the front insert is provided as the engaging means, and the intermediate insert has the above-mentioned engagement of the front insert as the engaging means. A locking hole for engaging with the engaging protrusion is provided at a position corresponding to the engaging protrusion, and a relief portion of the engaging protrusion is provided at a position corresponding to the engaging protrusion of the front insert in the rear insert. The single waterproof crimp connector according to claim 1, wherein the engagement protrusion is connected to the front plug. The single waterproof crimp connector according to claim 2 or 3, characterized in that it is provided at the center of the support and at five locations at intervals of 90 degrees, and as claimed in claim 5, in the insertion hole of the front insert into which the crimp pin contact is inserted 5. The single waterproof crimp connector according to claim 4, wherein at least one ring-shaped convex part is provided on the crimp pin contact part, and the front insert is made of an elastic body. 6. The single waterproof crimp connector according to claim 5, wherein the extension protrusion is provided at an end of the engagement protrusion, and the extension protrusion is pulled to pull the engagement protrusion of the front insert. A single waterproof crimp connector characterized in that the extended portion is cut after the intermediate insert is engaged with the intermediate insert. According to the assembling method of the present invention, a notch is provided between the front end of the engaging protrusion and the extending portion, and the engaging protrusion of the front insert is engaged with the intermediate insert, and then the pulling is further performed. The assembly method of the single waterproof crimp connector according to claim 7, wherein the extended portion is cut. In addition, as a fitting system, it is a screw system as shown in FIG. According to the summary of Japanese Patent Application No. 2009-105777 of Patent Document 3, it is possible to provide a connector 10 having a structure in which a fitting method can be selected by a customer according to the customer's specifications, and whether the fitting has been completed can be confirmed. A connector 10 that is detachably fitted to a mating connector, and has a plurality of contacts 12 having a contact portion 121 that contacts the mating connector and a connection portion 123 that connects to a cable or a board. At least one or more insulators 14 and 16 to be held, and a shell 18 that covers the insulators 14 and 16 and has means for engaging with the mating connector, the mating connector is inserted by the shell 18 and the insulators 14 and 16. In the connector 10 forming the fitting port 20, the shell 18 is provided with two types of engaging means as engaging means, one forming a screw portion 185, and the other Connector 10 and forming a plurality of grooves 182 Kirikakare obliquely at a predetermined position of the screw portion 185 is disclosed. By the way, as claim 1 of the claims, a connector that is detachably fitted to a mating connector, and a plurality of contacts having a contact portion that contacts the mating connector and a connection portion that connects to a cable or a board, And at least one insulator in which the contacts are arranged and held; and a shell that covers the insulator and has an engagement means with the mating connector; and the mating connector is inserted by the shell and the insulator. In the connector forming the joint, the shell is provided with two types of engaging means as the engaging means, one forming a screw part, and the other being cut obliquely at a predetermined position of the screw part. A connector characterized in that a plurality of grooves are formed, and according to claim 2, if the engaging means of the mating connector is a screw, it is screwed to the threaded portion of the shell to engage the mating connector. 4. The connector according to claim 1, wherein the step is a convex portion, and the groove is engaged with the groove portion of the shell by one-touch lock. The alignment is performed by providing a groove and engaging the protrusion of the mating connector and the groove of the shell to a position where the tip of the protruding groove can be seen when engaged. According to a fourth aspect of the present invention, there is provided a substantially trapezoidal groove that protrudes substantially perpendicularly to the fitting port at the tip of the groove portion, and the groove when the screw of the mating connector and the screw portion of the shell are screwed together. 3. A connector or the like according to claim 1 or 2, wherein positioning is performed by engaging the tip of the connector and the mating connector to a position where they coincide. The fitting method is a combination of the one-touch lock method and the screw method as shown in FIG. That is, the customer can select the fitting method as appropriate. According to the summary of Japanese Patent Application No. 2009-130684 of Patent Document 4, when two connectors are fitted, a fitting that can be quickly fitted to one connector having a screw-type fitting structure already attached to a device or the like. In order to provide a joint structure, the fitting structure is a fitting structure between the plug connector 20 and the mating connector, and the holding member 28 is attached to the coupling ring 26 of the plug connector 20 so that the holding member 28 is in a predetermined position. At least two or more elastic pieces 30 whose tips are inclined in the center direction and whose positions are shifted in the fitting direction are provided, and a screw portion 60 is formed at a position corresponding to the elastic piece 30 in the mating connector. Is simply inserted into the mating connector so that the tip 32 of the elastic piece 30 engages with the valley 62 of the threaded portion 60, so that the plug connector 20 and the mating connector are engaged. DOO fitting structure is disclosed which is characterized in that the fitting. By the way, as claim 1 of the claims, in a fitting structure between a plug connector and a mating (receptacle or jack) connector, a holding member is attached to the coupling ring of the plug connector, and a predetermined position of the holding member is set. At least two or more elastic pieces whose tip is inclined in the center direction and shifted in the fitting direction are provided, and the mating connector (receptacle or jack) connector is formed with a screw portion at a position corresponding to the elastic piece. The plug connector and the mating member (receptacle or jack) can be obtained by simply inserting the plug connector linearly into the mating connector (receptacle or jack) connector and engaging the tip of the elastic piece with the valley of the threaded portion. ) A fitting structure characterized by fitting with a connector; In a fitting structure between a connector and a mating (receptacle or jack) connector, a holding member is attached to the coupling ring of the plug connector, the tip of the holding member is inclined in the center direction, and the fitting direction is At least two or more elastic pieces shifted in position are provided, and the counterpart (receptacle or jack) connector is provided with at least two or more locking portions shifted in the fitting direction at positions corresponding to the elastic pieces, By simply inserting the plug connector linearly into the mating (receptacle or jack) connector, the plug piece and the mating (receptacle or jack) connector are fitted by engaging the elastic piece with the locking portion. The fitting structure according to claim 3, wherein the holding member is cut diagonally. The coupling ring is provided with a protrusion at a position corresponding to the locking groove, and the elastic piece is engaged with the locking portion or the screw portion. The fitting structure according to claim 1 or 2, wherein at least two or more of the above-described fitting structures are prevented by rotating the shaft at a side wall portion of the coupling ring. 4. The fitting structure according to claim 1, wherein the elastic piece is provided so as to be symmetrical with respect to the center point, and as the fifth aspect, the plug connector and the mating (receptacle or jack) connector are attached and detached. An electrical connector that fits freely, and includes a plurality of pin contacts having a first contact portion that contacts a socket contact and a first connection portion that connects to a board or a cable. A mating member (receptacle or receptacle) having at least one or more insulators on which the contacts are arranged and held, and an engagement member having the threaded portion as an engaging means with the mating connector on the outer periphery. Jack) connector, a plurality of socket contacts having a second contact portion that contacts a pin contact, a second connection portion that connects to a board or a cable, and at least one or more insulators on which the socket contacts are arranged and held An electrical connector comprising: a plug connector that covers the insulator and has a fitting portion that enters the mating connector (receptacle or jack) connector and a coupling ring that has an engaging means with the engaging member. Attach the holding member to the coupling ring of the plug connector, and place the holding member in the specified position. Is provided with at least two elastic pieces inclined in the center direction and shifted in the fitting direction, and the tip of the elastic piece is simply inserted into the mating connector (receptacle or jack) connector in a straight line. An electrical connector, wherein the plug connector and the mating (receptacle or jack) connector are engaged with each other by engaging with a trough of the threaded portion. The coupling ring is provided in a state where a protrusion is provided in the coupling ring, a protrusion is provided at a position corresponding to the locking groove, and a tip of the elastic piece is engaged with a valley portion of the screw portion. The floating of the tip of the elastic piece is prevented by the side wall portion of the coupling ring by rotating the elastic member. The gas connector and the like have been disclosed.

In recent years, depending on customers, there is a demand to quickly and reliably fit two connectors together. In the screw-type fitting structure as in Patent Document 2, it takes time to screw and cannot be fitted quickly.
In the case of the one-touch lock type fitting structure of Patent Document 1 and the fitting structure in which the one-touch lock type is fitted in Patent Document 3, it is possible to quickly fit two connectors together. However, when one connector is already attached to a housing or the like and the fitting structure of the attached connector is a screw type, the other is the one-touch lock type fitting structure of Patent Document 1 or Patent Document 3 can not be fitted with the fitting structure fitted with the one-touch lock method, but can be fitted only when fitting with the screw-type fitting structure in Patent Document 3. It cannot be mated quickly. In order to make it possible to quickly fit the two connectors in order to make the two-touch lock system, it is necessary to either replace the attached connector or perform new processing, which is very time-consuming. become.
In the structure of Patent Document 4, when the coupling ring is rotated with a stronger force after speed fitting, there is a problem that the elastic piece engaged with the mating screw portion gets over the screw and loosens.

  The present invention has been made in view of such a conventional problem, and has a screw-type fitting structure in which a cable is pulled out from a device and attached to the tip when two connectors are fitted. It is intended to provide a fitting structure that can be quickly fitted to one connector having a screw type fitting structure already attached to a device or the like, and an electrical connector using the fitting structure. .

  The fitting structure for this purpose is a fitting structure between a plug connector and a mating (receptacle or jack) connector as in the fitting structure according to claim 1, wherein at least two or more outsides are provided in the insert of the plug connector. A substantially L-shaped projecting piece projecting in the direction is disposed integrally or separately, and the projecting piece has elasticity, and a free end of the projecting piece is provided with a projecting section projecting in the central axis direction, The mating connector (receptacle or jack) connector is formed with a screw portion or a locking portion that engages with the convex portion at a position corresponding to the protruding piece, and a coupling ring is provided on the outer periphery of the protruding piece of the insert. The coupling ring is provided with a locking groove at a position corresponding to the free end side of the protruding piece of the insert, and the plug connector is connected to the counterpart (receptor). Or the jack) by simply inserting it into the connector and moving the coupling ring forward, the coupling ring presses the tip of the protruding piece in the central axis direction, so that the convex portion of the protruding portion is the male screw. The plug connector and the mating connector (receptacle or jack) connector can be fitted by rotating the coupling ring and the coupling ring.

The fitting structure according to claim 2, wherein the insert is provided with the same number of protrusions as the protruding pieces in a direction opposite to the protruding pieces from a position where the protruding pieces are disposed, and the coupling ring is fitted with 2. The fitting structure according to claim 1, further comprising a locking recess that engages with the protrusion when rotation of the time is finished.
In the fitting structure according to claim 3, the coupling ring is provided with a protrusion at a position adjacent to the locking recess, and a click feeling is given when the protrusion engages with the locking recess. It is in the fitting structure of Claim 1 or 2 characterized by these.
Furthermore, the fitting structure according to claim 4 is the fitting structure according to claim 1, 2, or 3, wherein a shape of the convex portion is a mountain shape along the screw portion.

  The electrical connector according to the present invention is an electrical connector in which a plug connector and a mating (receptacle or jack) connector are detachably fitted to each other, and the first contact portion and the substrate that come into contact with the socket contact A plurality of pin contacts each having a first connecting portion to be connected to a cable, at least one insulator on which the pin contacts are arranged and held, and the insulator is mounted and a connector is connected to the outer periphery. A plurality of connector (receptacle or jack) connectors having a threaded portion or a coupling ring having a locking portion as a coupling means, a second contact portion that comes into contact with a pin contact, and a second connection portion that connects to a board or a cable Socket contacts and at least one insert in which the socket contacts are arranged and held; An electrical connector comprising: a plug connector that covers an insert and has a fitting portion that fits into the mating (receptacle or jack) connector and has a coupling ring that has an engagement means with the coupling ring. At least two or more substantially L-shaped projecting pieces projecting in the outward direction are arranged integrally or separately on the insert, and the projecting pieces have elasticity and the free end side of the projecting piece has a central axial direction. The coupling ring is provided with a locking groove at a position corresponding to the free end side of the protruding piece of the insert, and the plug connector is linearly connected to the mating (receptacle or jack) connector. Simply insert it into the coupling ring and advance the coupling ring. By pressing the tip of the projecting piece in the central axis direction, the projecting portion of the projecting portion engages with the male screw, and the coupling ring is rotated to rotate the plug connector and the mating (receptacle or jack) connector. Can be achieved by an electrical connector characterized by fitting.

The electrical connector according to claim 6, wherein the insert is provided with the same number of protrusions as the protruding pieces in a direction opposite to the protruding pieces from a position where the protruding pieces are disposed, and the coupling ring is fitted when fitted. 6. The electrical connector according to claim 5, further comprising a locking recess that engages with the protrusion when the rotation of the connector is finished.
The electrical connector according to claim 7, wherein the coupling ring is provided with a convex at a position adjacent to the locking recess, and a click feeling is given when the protrusion engages with the locking recess. The electrical connector according to claim 5 or 6, wherein the electrical connector is characterized in that:
Furthermore, the electrical connector according to claim 8 is the electrical connector according to claim 5, 6, or 7, wherein the shape of the convex portion is a mountain shape along the screw portion.

As is clear from the above description, according to the fitting structure and the electrical connector of the present invention, the following excellent effects can be obtained.
(1) In the fitting structure between the plug connector and the mating (receptacle or jack) connector as in the fitting structure according to the first aspect, at least two or more outwardly projecting protrusions are inserted into the plug connector insert. An L-shaped projecting piece is disposed integrally or separately, and the projecting piece is provided with elasticity, and a projecting portion projecting in the central axis direction is provided on the free end side of the projecting piece. ) The connector is formed with a threaded portion or a locking portion that engages with the convex portion at a position corresponding to the protruding piece, and a coupling ring is disposed on the outer periphery of the protruding piece of the insert. The ring ring is provided with a locking groove at a position corresponding to the free end side of the protruding piece of the insert, and the plug connector is connected to the mating member (receptacle or jack). H) Inserting the connector linearly into the connector and moving the coupling ring forward, the coupling ring presses the tip of the protruding piece in the direction of the central axis, so that the convex portion of the protruding portion becomes the male screw. The plug connector and the mating connector (receptacle or jack) connector are engaged by engaging and rotating the coupling ring. Even if a mating connector (receptacle or jack) connector is attached to the device, etc., the plug connector is simply inserted into the mating connector (receptacle or jack) connector, and a coupling ring is simply inserted. The connector and the mating (receptacle or jack) connector can be quickly mated and The holding force (about 100 N) is obtained, never even when the insertion or 500 times the protruding piece is damaged.
(2) In the fitting structure according to the second aspect, the insert is provided with the same number of protrusions as the protruding pieces in a direction opposite to the protruding pieces from the position where the protruding pieces are disposed, and the coupling ring The engagement structure according to claim 1, further comprising a locking recess that engages with the protrusion when the rotation at the time of fitting is completed. (Or a jack) connector, even if the connector is attached to a device or the like, the plug connector and the plug connector and the plug are simply inserted into the mating (receptacle or jack) connector and a coupling ring is inserted. The mating connector (receptacle or jack) connector can be quickly fitted, and a stable holding force (about 100N) can be obtained. Will not be damaged.
(3) In the fitting structure according to claim 3, the coupling ring is provided with a protrusion at a position adjacent to the locking recess, and a click feeling is given when the protrusion engages with the locking recess. Since the fitting structure according to claim 1 or 2 is used, even if the mating connector (receptacle or jack) connector is already attached to a device or the like with a simple structure, the plug connector is The plug connector and the mating (receptacle or jack) connector can be fitted quickly by simply inserting the mating connector (receptacle or jack) into a connector and then inserting a coupling ring. The projecting piece is not damaged even if it is inserted and removed 500 times or more.
(4) Since the fitting structure according to claim 4 is the fitting structure according to claim 1, 2, or 3, wherein the shape of the convex portion is a mountain shape along the screw portion. Even if the mating connector (receptacle or jack) connector is already attached to a device or the like with a simple structure, the plug connector is linearly inserted into the mating connector (receptacle or jack) connector, and a coupling ring is further connected. By simply inserting, the plug connector and the mating (receptacle or jack) connector can be quickly fitted, a stable holding force (about 100 N) is obtained, and the protruding piece is damaged even after being inserted and removed 500 times or more. There is nothing.

(5) The electrical connector according to claim 5 is an electrical connector in which a plug connector and a mating (receptacle or jack) connector are detachably fitted, and a first contact portion that comes into contact with a socket contact, a board, a cable, A plurality of pin contacts having a first connecting portion to be connected; at least one insulator on which the pin contacts are arranged and held; and an engagement means for mounting the insulator and mating connector on the outer periphery A plurality of socket contacts having a mating (receptacle or jack) connector having a threaded portion or a coupling ring having a locking portion, a second contact portion that contacts a pin contact, and a second connection portion that connects to a board or cable At least one insert in which the socket contacts are arranged and held; and the insert An electrical connector comprising: a plug connector that includes a coupling ring that has a fitting portion that covers the mating connector (receptacle or jack) and has an engagement means with the coupling ring. Further, at least two or more substantially L-shaped projecting pieces projecting in the outer direction are arranged integrally or separately, and the projecting pieces have elasticity, and at the free end side of the projecting pieces in the direction of the central axis. Protruding protrusions are provided, the coupling ring is provided with a locking groove at a position corresponding to the free end side of the protruding piece of the insert, and the plug connector is linearly connected to the mating (receptacle or jack) connector. Just insert and advance the coupling ring, the coupling ring protrudes The projection of the protrusion is engaged with the male screw by pressing the tip of the connector in the direction of the central axis, and the plug connector and the mating (receptacle or jack) connector are fitted by rotating the coupling ring. Since the electrical connector is characterized by a combination, the plug connector is connected to the counterpart (receptacle or jack) with a simple structure, even if the counterpart (receptacle or jack) connector is already attached to a device or the like. The plug connector and the mating connector (receptacle or jack) connector can be quickly fitted just by inserting the connector linearly into the connector, and a stable holding force (about 100 N) can be obtained. Even if it is inserted and removed 500 times or more, the protruding piece is not damaged.
(6) In the electrical connector according to claim 6, the insert is provided with the same number of protrusions as the protruding pieces in a direction opposite to the protruding pieces from the position where the protruding pieces are disposed. 6. The electrical connector according to claim 5, wherein a locking recess is provided to engage with the protrusion when the rotation at the time of fitting is completed, so that the mating member (receptacle or jack) is already provided with a simple structure. ) Even if the connector is attached to a device or the like, the plug connector and the mating member (the receptacle or jack) can be inserted linearly into the mating (receptacle or jack) connector, and a coupling ring can be inserted. (Receptacles or jacks) Connector can be quickly fitted, stable holding force (about 100N) is obtained, and even after 500 or more insertions / removals The protruding piece will not be damaged.
(7) The electrical connector according to claim 7, wherein the coupling ring is provided with a protrusion at a position adjacent to the locking recess, and a click feeling is provided when the protrusion engages with the locking recess. The electrical connector according to claim 5 or 6, wherein the plug connector is connected to the mating connector (receptacle or jack) even if the mating connector (receptacle or jack) is already attached to a device or the like. The plug connector and the mating connector (receptacle or jack) connector can be quickly mated by simply inserting it into the receptacle or jack connector and then inserting a coupling ring. Thus, the protruding piece is not damaged even if it is inserted and removed 500 times or more.
(8) Since the electrical connector according to claim 8 is the electrical connector according to claim 5, 6, or 7, the shape of the convex portion is a mountain-shaped shape along the screw portion. Even if the mating connector (receptacle or jack) connector is already attached to a device or the like, the plug connector is linearly inserted into the mating connector (receptacle or jack) connector, and a coupling ring is further inserted. The plug connector and the mating connector (receptacle or jack) connector can be quickly fitted, a stable holding force (about 100 N) can be obtained, and the protruding piece can be damaged even after being inserted and removed 500 times or more. Absent.

(A) It is a perspective view of the plug connector seen from the fitting direction. (B) It is the perspective view of the jack connector seen from the fitting direction. (A) It is sectional drawing of a plug connector. (B) It is sectional drawing of a jack connector. (A) It is sectional drawing of the state which inserted the plug connector in the jack connector. (B) It is sectional drawing of the state which pushed in the coupling ring further from the state of (A). (C) It is sectional drawing of the state which rotated the coupling ring 60 degree | times from the state of (B). (A) It is the perspective view seen from the fitting direction of the insert of a plug connector. (B) It is the perspective view seen from the reverse direction of fitting of the insert of a plug connector. (C) It is sectional drawing which carried out the cross section in the insertion hole part of a plug connector. (A) It is the perspective view seen from the fitting direction of the insulator of a jack connector. (B) It is the perspective view seen from the reverse direction of fitting of the insulator of a jack connector. (C) It is sectional drawing cut in the insertion hole part of the jack connector. (A) It is a perspective view of a socket contact. (B) It is a perspective view of a pin contact. (A) It is the perspective view which looked at the coupling ring of the plug connector from the fitting direction. (B) It is the perspective view which looked at the coupling ring of the plug connector from the reverse direction of fitting. (C) It is sectional drawing which carried out the cross section of the coupling ring of the plug connector. (A) It is the perspective view which looked at the coupling ring of the jack connector from the fitting direction. (B) It is the perspective view which looked at the coupling ring of the jack connector from the fitting direction. (C) It is sectional drawing which carried out the cross section of the coupling ring of the jack connector.

The feature of the present invention is that, in the fitting structure between the plug connector 20 and the mating (receptacle or jack 50) connector, as in the fitting structure according to claim 1, at least two or more inserts 24 in the plug connector 20 are provided. A substantially L-shaped projecting piece 30 projecting in the outer direction of the projecting piece 30 is arranged integrally or separately, and the projecting piece 30 has elasticity, and a free end of the projecting piece 30 projects in the central axis direction. The connector (receptacle or jack 50) connector is provided with a screw portion 60 or a locking portion that engages with the convex portion 32 at a position corresponding to the protruding piece 30, and the insert The coupling ring 26 is arranged on the outer periphery of the 24 protruding pieces 30, and the coupling ring 26 is disposed on the free end side of the protruding piece 30 of the insert 24. A locking groove 34 is provided at a corresponding position, the plug connector 20 is inserted straight into the mating (receptacle or jack 50) connector, and the coupling ring 26 is moved forward by simply moving the coupling ring 26 forward. By pressing the tip of the protruding piece 30 in the central axis direction, the convex portion 32 of the protruding portion 30 is engaged with the male screw 60, and the coupling ring 26 is rotated to rotate the plug connector 20 and the counterpart ( A receptacle or jack 50) is a fitting structure characterized by fitting with a connector.
That is, the projecting piece can be obtained simply by inserting the plug connector 20 linearly into the mating connector (receptacle or jack 50) connector already attached to a device or the like, and further inserting the coupling ring 26. The plug connector 20 and the mating connector (receptacle or jack 50) connector can be fitted together by engaging the tip of 30 with the trough or locking portion of the screw portion 60.

Based on FIGS. 1-7, one Example of the electrical connector of this invention is described. 1A is a perspective view of the plug connector viewed from the fitting direction, and FIG. 1B is a perspective view of the jack connector viewed from the fitting direction. 2A is a cross-sectional view of the plug connector, and FIG. 2B is a cross-sectional view of the jack connector. 3A is a cross-sectional view of a state where a plug connector is inserted into a jack connector, FIG. 3B is a cross-sectional view of a state where a coupling ring is further pushed in from the state of FIG. 3A, and FIG. It is sectional drawing of the state which rotated the coupling ring 60 degree | times from the state of B). 4A is a perspective view as seen from the fitting direction of the plug connector insert, FIG. 4B is a perspective view seen from the opposite direction of the fitting of the plug connector insert, and FIG. 4C is the insertion of the plug connector. FIG. 6 is a cross-sectional view taken along a hole portion. FIG. 5A is a perspective view as seen from the fitting direction of the insulator of the jack connector, FIG. 5B is a perspective view seen from the opposite direction of the fitting of the insulator of the jack connector, and FIG. FIG. 6A is a perspective view of the socket contact, and FIG. 6B is a perspective view of the pin contact. 7A is a perspective view of the coupling ring of the plug connector as seen from the fitting direction, FIG. 7B is a perspective view of the coupling ring of the plug connector as seen from the opposite direction of fitting, and FIG. It is sectional drawing which carried out the cross section of the coupling ring of the plug connector. 8A is a perspective view of the coupling ring of the jack connector as seen from the fitting direction, FIG. 8B is a perspective view of the coupling ring of the jack connector as seen from the fitting direction, and FIG. 8C is the jack connector. It is sectional drawing which cut | disconnected the coupling ring of.
The electrical connector of the present invention includes a mating (receptacle or jack) connector and a plug connector 20. In this embodiment, the jack connector 50 will be described as the mating connector.

First, the fitting structure will be described.
First, the plug connector 20 is inserted into the jack connector 50 together with the key 65 and the key groove 41 until it enters the position (abuts). (This state is shown in FIG. 3 (A).) In FIG. 3 (A), the tip of a substantially L-shaped protruding piece 30 arranged integrally or separately on the insert 24 of the plug connector 20 is the cup. It is in a state where it enters a locking groove 34 provided in the ring ring 26.
Next, both the coupling ring 26 of the plug connector 20 and the coupling ring 56 of the jack connector 50 are held, and the coupling ring 26 of the plug connector 20 is further pushed in. (This state is FIG. 3 (B).) In FIG. 3 (B), when the O-ring 28 is crushed at the root part of the integral or separate protruding piece 30 arranged in the insert 24 of the plug connector 20. At the same time, the tip of the protruding piece 30 is elastically deformed in the direction of the central axis at the wall portion 38 of the coupling ring 26 of the plug connector 20, so that the convex portion 32 of the protruding piece 30 becomes the coupling ring 56 of the jack connector 50. It is the state engaged with the screw part 60 or the latching | locking part formed in this. That is, it is in an engaged / locked state.
Finally, the coupling ring 26 of the plug connector 20 is rotated. (This state is FIG. 3C.) FIG. 3C is a state in which the protruding piece 30 of the plug connector 20 is kept pressed by the wall portion 38 of the coupling ring 26.
That is, by simply inserting the plug connector 20 into the jack connector 50 and moving the coupling ring 26 forward, the coupling ring 26 presses the tip of the protruding piece 30 in the central axis direction. The projecting portion 32 of the projecting portion 30 engages with the screw portion 60 of the jack connector 50, and the coupling connector 26 is rotated so that the plug connector 20 and the jack connector 50 are fitted.

  Next, the electrical connector 10 will be described. First, the plug connector 20 will be described. The plug connector 20 includes at least a socket contact 22, an insert 24, a coupling ring 26, and an O-ring 28. Hereinafter, each part of the plug connector 20 will be described.

  First, the socket contact 22 will be described. The socket contact 22 is made of metal and is manufactured by a known press working. Examples of these materials include pure copper, brass, beryllium copper, phosphor bronze and the like in consideration of springiness, conductivity, workability, and the like. be able to. In this embodiment, the socket contacts 22 are arranged and held in the insert 24 by integral molding after connecting cables. The socket contact 22 has a substantially cylindrical shape, and mainly includes a second contact portion 221 that contacts the pin contact 52 of the jack connector 50, a second fixing portion 222 that is arranged and held in the insert 24, a substrate, a cable, and the like. And a second connection portion 223 connected to the. The second connection portion 223 is provided with a hole into which a cable core is inserted, and is connected by crimping. The second contact portion 221 is a cylindrical hole into which the pin contact 52 of the jack connector 50 is inserted.

  Next, the insert 24 will be described. The insert 24 is an electrically insulating plastic and is manufactured by a known technique of injection molding. These materials are appropriately selected in consideration of dimensional stability, workability, cost, etc. Examples include butylene terephthalate (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), polyphenylene sulfide (PPS), and synthetic materials thereof. The insert 24 has a substantially cylindrical shape, and the insert 24 is provided with a key groove 41 for alignment with a jack connector 50 which is a mating connector. The size of the key groove 41 is only required to be aligned, and is appropriately designed in consideration of workability and strength.

  In the case of the present embodiment, the socket contact 22 is held by integral molding, but in the case of holding by press-fitting or the like instead of integral molding, an insertion hole for inserting the socket contact 22 is required. In many cases, the insertion hole has a plurality of step shapes in consideration of looseness of the socket contact 22 and escape of the cable core wire. The insert 24 is provided with a first insertion hole 40 into which the pin contact 52 is inserted. The shape and size of the first insertion hole 40 may be anything as long as the pin contact 52 can be inserted and the pin contact 52 and the socket contact 22 can be stably connected. To design appropriately.

  On the fitting side of the insert 20, a fitting portion 29 that enters the fitting port 58 of the jack connector 50 is formed. The shape and size of the fitting portion 29 may be inserted into the fitting port, and appropriately designed in consideration of processability, dimensional stability, connectivity, fitting property, strength, and the like along the fitting port. To do.

  The insert 24 is provided with a substantially L-shaped projecting piece 30 projecting toward the fitting portion direction side in at least two or more outer directions from substantially the vicinity of the center in the insertion direction. In this embodiment, they are integrally formed, and the protruding piece 30 has elasticity, and when it is elastically deformed by the coupling ring 26 and bent in the central axis direction, the screw portion of the jack connector 50 is formed. 60 or the engaging portion can be engaged. The shape, size, and quantity of the protrusions 30 are appropriately designed in consideration of the role, holding force, elasticity, workability, strength, and the like. In this embodiment, considering the elasticity, it is substantially L-shaped, and three are arranged at intervals of 120 degrees in consideration of balance.

  On the free end side of the protruding piece 30, a convex portion 32 protruding in the central axis direction is provided. The convex portion 32 is a portion that engages 9 with the screw portion 60 or the locking portion of the jack connector 50 that is the mating connector. The shape and size of the convex part 32 is adapted to the shape of the mating part. In the present embodiment, since the mating part is the screw part 60, the convex part 32 has a mountain shape. One convex shape has a substantially triangular shape along the screw shape. A plurality (two or more) of these forms a mountain shape.

  The insert 24 is provided with the same number of protrusions 36 as the protruding pieces 30 in the direction opposite to the protruding pieces 30 from the position where the protruding pieces 30 are disposed. The protrusions 36 are for holding and clicking when the coupling ring 26 is rotated. The shape and size of the protrusion 36 is appropriately designed in consideration of such a role, holding force, workability, strength, and the like. In this embodiment, the height is about 0.2 mm.

  Next, the coupling ring 26 will be described. The coupling ring 26 is made of metal, and is manufactured by a known technique. These materials include zinc die cast and aluminum die cast in consideration of dimensional stability, workability, strength, and the like. Can do. The coupling ring 26 has a substantially cylindrical shape, and is provided with a first insertion hole 46 through which the insert 24 is inserted. The coupling ring 26 is rotatably held by the insert 24. The coupling ring 26 is inserted along the projecting piece 30 provided on the insert 24 and rotated 60 degrees so that the coupling ring 26 is rotatably held by being fitted into the locking groove 34 on the side surface.

  The coupling ring 26 is provided with a locking groove 34 at a position corresponding to the free end side of the protruding piece 30 of the insert 24. The locking groove 34 is for escaping the protruding piece 30 of the insert 24 in the state shown in FIG. 3A (the state where the plug connector 20 is inserted into the jack connector 50). The protruding piece 30 of the insert 24 is not elastically deformed only by inserting the plug connector 20 into the jack connector 50. The shape and size of the locking groove 34 is not required to elastically deform the protruding piece 30 just by inserting the plug connector 20 into the jack connector 50, and considers the role of escape, workability, strength, etc. And design accordingly.

  The coupling ring 26 has a wall portion 38 that, when rotated, presses the protruding piece 30 of the insert 24 in the axial center direction and elastically deforms the protruding piece 30. The wall portion 38 only needs to be able to elastically deform the protruding piece 30, and the size and shape thereof are appropriately designed in consideration of the miniaturization, strength, role, and the like of the connector.

  The coupling ring 26 is provided with a locking recess 44 that engages with the protrusion 36 of the insert 24 when the rotation at the time of fitting is completed. Further, the coupling ring 26 is provided with a projection 48 at a position adjacent to the locking recess 44 so as to give a click feeling when the projection 36 of the insert 24 engages with the locking recess 44. ing. The shape and size of the locking recess 44 only needs to be able to engage with the protrusion 36 of the insert 24, and is appropriately designed in consideration of workability, strength, role, and the like along the shape of the protrusion 36. In addition, the shape and size of the projection 48 are appropriately designed in consideration of the role, strength, workability, click feeling, and the like.

  The coupling ring 26 is provided with a stopper 49 on the fitting direction side so that the coupling ring 26 does not come off from the insert 24. The stopper 49 only needs to be provided so that the coupling ring 26 does not come off from the protruding portion 30 of the insert 24. The shape and size of the stopper 49 are along the tip of the protruding piece 30, and the strength, role, workability, etc. are taken into consideration. And design accordingly.

  Finally, the O-ring 28 will be described. The O-ring 28 is made of rubber and is commercially available. The O-ring 28 enhances waterproofness by being crushed when the plug connector 20 and the jack connector 50 are fitted together. The O-ring 28 is held by insertion (elastic force) into the root portion of the fixed end of the protruding piece 30 of the insert 24.

  Below, although the jack connector 50 which is a mating connector is demonstrated 2ndly, the said jack connector 50 has the pin contact 52, the insulator 54, and the coupling ring 56 at least. Below, each each site | part is demonstrated.

  First, the pin contact 52 will be described. This pin contact 52 is made of metal and is manufactured by a known press working or cutting process. These materials include pure copper, brass, beryllium copper, and phosphor bronze in consideration of springiness, conductivity, workability, and the like. Etc. In this embodiment, the pin contacts 52 are arranged and held on the insulator 54 by press-fitting. The pin contact 52 includes a first contact portion 521 that mainly contacts the socket contact 22 of the plug connector 20, a first fixing portion 522 arranged and held on the insulator 54, and a first connection portion 523 that is connected to a cable or the like. It has. The pin contact 52 is provided with a first fixing portion 522 for press-fitting into the second insertion hole 64 of the insulator 54. The first connecting portion 523 is provided with a hole into which a cable core is inserted, and is connected by crimping. The first contact portion 521 has a cylindrical shape that enters the socket contact 22.

  Next, the insulator 54 will be described. The insulator 54 is an electrically insulating plastic and is manufactured by a known technique of injection molding. These materials are appropriately selected in consideration of dimensional stability, workability, cost, etc. Examples thereof include polybutylene terephthalate (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), polyphenylene sulfide (PPS), and synthetic materials thereof. The insulator 54 has a substantially cylindrical shape, and is provided with a plurality of second insertion holes 66 into which the pin contacts 52 are inserted. The size of the second insertion hole 66 is about 0.03 to 0.1 mm smaller than the pin contact 52. The second insertion hole 66 has a plurality of steps in consideration of rattling of the pin contact 52 and escape of the cable core wire.

  The insulator 54 is provided with a key 65 for alignment with the plug connector 20 which is a mating connector. The size of the key 65 only needs to be aligned, and is appropriately designed in consideration of workability and strength.

  Further, the insulator 54 is provided with a fitting port 58 into which the tip of the insert 24 is inserted. The size of the fitting port 58 may be appropriately designed in consideration of workability and connectivity as long as the distal end portion of the insert 24 enters and a stable connection can be obtained. In the present embodiment, it is made larger by about 0.1 to 0.2 mm than the tip portion of the insert 24.

  The insulator 54 is provided with a holding means for holding the coupling ring 56. An all-around convex portion is provided so that the coupling ring 56 does not move forward (in the fitting direction).

Finally, the coupling ring 56 will be described. The coupling ring 56 is made of metal and is manufactured by a known technique, and examples of these materials include zinc die cast and aluminum die cast in consideration of dimensional stability, workability, strength, and the like. it can.
The coupling ring 56 has a substantially cylindrical shape and is provided with a second insertion hole 68 through which the insulator 54 is inserted, and the coupling ring 56 can be rotated by the holding means as described above. Is held in. Further, a screw portion 60 for engaging with the plug connector 20 is provided on the outer periphery of the coupling ring 56 on the fitting direction side. The screw portion 60 can also be used for screw fitting using the same screw as the plug connector 20 which is a mating connector.
Although the screw portion 60 is used here, it may be anything as long as it can be engaged with the protruding piece 30 of the plug connector 20, and may be a locking portion provided at a position corresponding to the protruding piece 30. For example, the locking portion may be an integral or separate recess.

  When the cable is connected and integrally molded on the opposite side to the fitting direction, the shape and size of the plug connector 20 and the jack connector 50 on the opposite side to the fitting direction are easy to be integrally molded, and the holding force In addition, it is designed appropriately in consideration of flexibility, integral moldability, strength and workability.

  In the present embodiment, the jack connector 50 has been described as the mating connector, but it may be a receptacle connector. In that case, instead of the coupling ring 56, a receptacle shell provided with means for engaging with the plug connector 20 is used.

  As an application example of the present invention, it is used for an electrical connector 10 used in electrical equipment and electronic equipment such as a robot, a machine tool, and an apparatus control panel. An electrical connector having a fitting structure capable of speed fitting when mating.

DESCRIPTION OF SYMBOLS 10 Electrical connector 20 Plug connector 22 Socket contact 221 2nd contact part 222 2nd fixing | fixed part 223 2nd connection part 24 Insert 26 Coupling ring 28 O-ring 29 Fitting part 30 Projection piece 32 Convex part 34 Locking groove 36 Protrusion 38 Wall portion 40 First insertion hole 41 Key groove 44 Locking recess 46 First insertion hole 48 Convex 49 Stopper 50 Jack connector 52 Pin contact 521 First contact portion 522 First fixing portion 523 First connection portion 54 Second insert (insulation) object)
56 Coupling ring 58 Mating port 60 Screw part 65 Key 66 Second insertion hole 68 Second insertion hole

Claims (8)

In the fitting structure between the plug connector and the mating (receptacle or jack) connector,
At least two or more substantially L-shaped projecting pieces projecting outwardly are arranged integrally or separately on the insert of the plug connector so that the projecting pieces have elasticity and on the free end side of the projecting pieces. Is provided with a protrusion protruding in the central axis direction,
The mating (receptacle or jack) connector is formed with a threaded portion or a locking portion that engages with the convex portion at a position corresponding to the protruding piece,
A coupling ring is arranged on the outer periphery of the protruding piece of the insert,
The coupling ring is provided with a locking groove at a position corresponding to the free end side of the protruding piece of the insert,
By simply inserting the plug connector into the mating connector (receptacle or jack) connector and moving the coupling ring forward, the coupling ring presses the tip of the protruding piece in the direction of the central axis, thereby the protrusion. A fitting structure characterized in that the projecting portion of the portion engages with the male screw, and the plug connector and the mating (receptacle or jack) connector are fitted by rotating the coupling ring. The insert is provided with the same number of protrusions as the protruding pieces in the direction opposite to the protruding pieces from the position where the protruding pieces are disposed,
The fitting structure according to claim 1, wherein the coupling ring is provided with a locking recess that engages with the protrusion when the rotation at the time of fitting is completed. The fitting according to claim 1, wherein the coupling ring is provided with a protrusion at a position adjacent to the locking recess, and a click feeling is provided when the protrusion engages with the locking recess. Combined structure. The fitting structure according to claim 1, wherein the convex portion has a mountain shape along the screw portion. An electrical connector in which a plug connector and a mating (receptacle or jack) connector are detachably fitted,
A plurality of pin contacts each having a first contact portion that contacts a socket contact and a first connection portion that connects to a board or a cable; at least one insulator on which the pin contacts are arranged and held; and A mating connector (receptacle or jack) connector that is mounted and has a coupling ring having a threaded portion or a locking portion as an engaging means with the mating connector on the outer periphery;
A plurality of socket contacts having a second contact portion that contacts the pin contact and a second connection portion that connects to the board or cable, at least one insert in which the socket contact is arranged and held, and covering the insert An electrical connector comprising: a plug connector having a fitting part that enters the mating (receptacle or jack) connector and a coupling ring having an engagement means with the coupling ring;
At least two or more substantially L-shaped projecting pieces projecting outwardly are arranged integrally or separately on the insert of the plug connector so that the projecting pieces have elasticity and on the free end side of the projecting pieces. Is provided with a protrusion protruding in the central axis direction,
The coupling ring is provided with a locking groove at a position corresponding to the free end side of the protruding piece of the insert,
By simply inserting the plug connector into the mating connector (receptacle or jack) connector and moving the coupling ring forward, the coupling ring presses the tip of the protruding piece in the direction of the central axis, thereby the protrusion. An electrical connector characterized in that a projection of a portion engages with the male screw, and the plug connector and the mating (receptacle or jack) connector are fitted by rotating the coupling ring. The insert is provided with the same number of protrusions as the protruding pieces in the direction opposite to the protruding pieces from the position where the protruding pieces are disposed,
The electrical connector according to claim 5, wherein the coupling ring is provided with a locking recess that engages with the protrusion when the rotation at the time of fitting is completed. 7. The electricity according to claim 5, wherein the coupling ring is provided with a protrusion at a position adjacent to the locking recess, and a click feeling is provided when the protrusion engages with the locking recess. connector. The electrical connector according to claim 5, wherein the convex portion has a mountain shape along the screw portion.

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