JP2012003984A - Connector and connector set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector of which the conductive section is unlikely to be touched by a worker, and which can suppress influence exerted on a worker, etc. outside by an arc occurring during insertion/extraction work in an active state.SOLUTION: A positive electrode side pin plug 1 is provided with a pin side insulating protective member 15 on the tip end surface of a pin contact 14 which is a conductor. In a positive electrode side socket 2, too, a socket side insulating protective member 25 is provided on the tip end surface of a cylindrical socket contact which is a conductor. Because of this configuration, even when a worker, etc. try to directly touch the pin contact 14 from the tip end side of the positive electrode side pin plug 1, the worker is made to touch the pin side insulating protective member 15 first, and thereby prevented from touching the pin contact 14. The same is true of the positive electrode side socket 2. Further, since both of the contacts are provided with the insulating protective members on the tip end surfaces, even if an arc occurs during insertion/extraction of a connector in an active state, the risk of the arc jumping out of the connector can be reduced.

Description

  The present invention relates to a connector used for electrical connection and a connector set including a plurality of connectors.

  Conventionally, there are various types of connectors, and appropriate connectors are selected and used in accordance with the use environment, equipment used, electrical ratings, and the like. For example, in an indoor / outdoor power transmission / distribution system, a high-voltage connector is used to turn on / off a high-voltage power supply system.

  Since such a high-voltage connector has a high working voltage, an operator who inserts and removes the connector has a conductor portion (pin contact, pin), electrical connection between the plug and socket constituting the connector. It is desirable to have a structure that makes it difficult to touch the socket contact.

  As a connector configured to make it difficult for an operator or the like to touch the conductor portion, for example, a connector in which a shutter for preventing the female terminal from being exposed is proposed on the female connector (that is, the socket side) is proposed. (For example, refer to Patent Document 1).

  The shutter has a terminal insertion opening for inserting the male terminal by exposing the female terminal, and is configured to be rotatable. When the male connector is not inserted, the female connector can be rotated. The female terminal is closed by the shutter and is not exposed to the outside. That is, the shutter is configured to stop at a rotational position where the female terminal is not exposed by the biasing force of the spring.

  Then, when the positioning shaft provided on the male connector is inserted into the shaft hole of the shutter of the female connector to insert the male connector, the shutter of the female connector is moved by the interaction between the positioning shaft and the shaft hole. It rotates against the urging force, and the female terminal is exposed to the outside from the terminal insertion port of the shutter. Thereby, the male side terminal of the male side connector is inserted into the female side terminal via the terminal insertion port of the shutter.

JP-A-8-153551

  However, in the technique described in Patent Document 1, the conductor portion of the female connector is prevented from being exposed when not in use, but the conductor portion of the male connector is inserted into the end face (female connector). Therefore, there is still a possibility that an operator or the like may directly touch at least the male connector.

  In particular, in the case of a high voltage connector, in some cases, the insertion / extraction operation may be performed in a live line state, in which case both the insertion (fitting) of the connector and the removal (detachment) of the connector are performed. An arc may occur. In particular, when the connector is detached, there is a possibility that the arc may jump out of the connector, and it is also desired to prevent such arc from jumping out.

  However, in the technique described in Patent Document 1, when the male connector is not used, the conductor portion of the female connector is closed by the shutter. And when the male terminal is separated from the female terminal when the male connector is detached, the female terminal is in a state facing the outside from the terminal insertion port of the shutter, so when used as a high voltage connector, There is a possibility that an arc is generated in a state that is visible to the operator, and eventually jumps out of the connector.

  As a specific example in which the connector insertion / removal operation is performed in a live line state, for example, communication equipment can be cited. In recent years, in communication facilities such as data centers and communication stations, construction of a DC power supply system for supplying DC power to various information communication devices such as routers and servers has been promoted. The movement toward higher efficiency is progressing with the high-voltage DC power supply system that supplies power.

  In such a communication facility, for example, in each part such as a rectifier that converts an AC high voltage input from the outside into a DC high voltage, a distribution device that distributes DC power from the rectifier to a load (various information communication devices), A connector is used to turn on and off the DC power supply path.

  In such a communication facility, for example, it is necessary to perform various operations such as increasing or decreasing the number of rectifier units constituting the rectifier according to increase or decrease of load capacity without stopping the operation of various information communication devices. In such a case, it is necessary to insert and remove the connector in a live line state.

  Therefore, in order to enable the operator to securely and safely insert / remove the connector, especially when connecting / disconnecting the connector in the live line state, particularly for a high voltage connector, or a connector that conducts / cuts off the DC power supply. Even if an arc is generated in this case, it is desired to prevent the arc from adversely affecting the work of the operator.

  The present invention has been made in view of the above problems, and it is difficult for an operator to touch each conductor portion, and it is possible to suppress the influence of an arc generated during insertion / extraction work in a live line state on an external operator or the like. An object is to provide a simple connector.

  The invention according to claim 1, which has been made to solve the above-mentioned problems, includes a connector plug having a pin contact made of a conductor and a cylindrical plug outer tube portion that accommodates the pin contact, and a pin made of a conductor. A cylindrical socket contact configured to be electrically connected to the pin contact when the contact is inserted, and a cylindrical member that accommodates the socket contact, the inner peripheral surface of the socket contact and the outer peripheral surface of the socket contact A connector socket having a socket outer cylinder portion configured such that an outer cylinder insertion portion into which the plug outer cylinder portion is inserted is present, and the plug outer cylinder is inserted into the connector socket by inserting the connector plug into the connector socket. By inserting the pin contact into the socket contact while inserting the portion into the outer tube insertion portion, each contact is electrically connected. A connector configured to conduct.

  The pin contact is provided with a plug-side insulating portion which is an insulating member having a predetermined thickness in an axial direction parallel to the axial center of each contact in a direction in which the connector is inserted / removed at least at the tip surface thereof. It has been. The socket contact is an insulating member having a predetermined thickness in the axial direction at least at the tip end surface thereof, and a cylindrical socket side insulating portion formed so as to follow the substantially annular shape of the tip end surface. Is provided.

  In the connector configured as described above, when the connector plug is viewed from the axial front end side (that is, the side inserted into the connector socket), the front end surface of the pin contact is covered with the plug-side insulating portion. ing. Therefore, even if an operator or the like tries to touch the pin contact directly from the front end side in the axial center direction, the operator touches the plug-side insulating portion before that, thereby preventing contact with the pin contact.

  The same applies to the connector socket, and since the socket side insulation is provided on the tip of the socket contact, the operator directly touches the socket contact from the axial tip (that is, the side where the connector plug is inserted). Even if it tries, it will touch a socket side insulation part before that, and the contact to a socket contact is suppressed by it.

  Further, since both of the contacts are provided with insulating members on their tip surfaces, even if an arc is generated when the connector is inserted and removed in a live line state, the possibility of the arc jumping out of the connector can be reduced.

  Therefore, according to the connector of the first aspect, it is difficult for an operator or the like to directly touch each conductor portion, that is, the pin contact and the socket contact, and an arc generated at the time of insertion / removal operation in a live line state is an external worker or the like. It becomes possible to suppress the influence which it has on.

  Next, the invention according to claim 2 is the connector according to claim 1, wherein the connector plug is formed such that the plug-side insulating portion does not protrude outside from the opening surface of the plug outer cylinder portion. The connector socket is formed so that the socket-side insulating portion does not protrude outward from the opening surface of the socket outer cylinder portion.

  Although the insulating member is provided on the front end surface of each contact, it is assumed that the insulating member protrudes to the outside from the opening surface of each outer cylindrical portion, and the end surface of each contact extends to each outer cylindrical portion. If it protrudes to the outside from the opening surface, the operator or the like may directly touch at least the protruding portion, and the significance and effect of providing an insulating member is reduced.

  Therefore, like the connector according to claim 2, the insulating member (each insulating portion) is positioned so as not to protrude from the opening surface of each outer cylinder portion, in other words, inside the opening surface of each outer cylinder portion. If it provides in this way, it can prevent reliably that an operator etc. touch each contact directly.

  Next, the invention according to claim 3 is the connector according to claim 1 or 2, wherein the internal space of the socket contact into which the pin contact is inserted is made of an insulator and the internal space. A movable insulating member configured to be movable in the axial direction is provided. The movable insulating member is disposed at a predetermined reference position such that the tip end in the axial direction protrudes at least from the tip end of the socket contact, and is elastically supported by the elastic member. It is configured to be elastically movable from the reference position to the rear end side in the axial direction.

  According to the connector according to claim 3 configured as described above, the operator or the like is not easily touched directly by the socket-side insulating portion by the movable insulating member. It is also possible to prevent a finger or the like from being inserted into the inner space of the socket contact and directly touching the socket contact from the inner space side. Therefore, it is possible to provide a connector that is more difficult for an operator or the like to directly contact the socket contact.

  In the configuration in which the movable insulating member is arranged on the socket contact in this way, when the pin contact is inserted into the socket contact, the tip of the pin contact comes into contact with the tip of the movable insulating member. As the pin contact is inserted, the movable insulating member moves to the rear end side by the insertion force of the pin contact.

  The movement of the movable insulating member toward the rear end side resists the urging force (force to return to the reference position) of the elastic member, and the repulsive force by the elastic member increases as the movement toward the rear end side. Become. Therefore, the repulsive force of the elastic member can be used as a detaching force when the pin contact is detached from the socket contact. For example, when the pin contact is inserted into the socket contact, the insertion state can be held by some means, and when the pin contact is released, the insertion state is released to a certain extent due to the repulsive force of the elastic member (for example, each contact (To the extent that the conductive state is released) can be forcibly removed.

  Next, the invention according to claim 4 is the connector according to any one of claims 1 to 3, wherein the connector plug is inserted into the connector socket and each contact is conductive. The connector plug is removed from the connector socket by a predetermined initial detaching operation, and the pin contact tip is inserted at a predetermined intermediate insertion length in the axial direction from the opening surface of the socket outer cylindrical portion. An initial detachment mechanism for stopping the detachment by the initial detachment operation when the detachment proceeds to the insertion position, and a connector by performing a predetermined continuous detachment operation from the state of detachment to the intermediate insertion position by the initial detachment mechanism. And a continuous detachment mechanism for completely detaching the plug from the connector socket.

  Among these mechanisms, the continuous detachment mechanism inserts the connector plug by a predetermined initial insertion operation including at least a part of an operation reverse to the continuous detachment operation when the connector plug is inserted into the connector socket. It also functions as an initial insertion mechanism for stopping the insertion when the insertion proceeds to the intermediate insertion position.

  The initial detachment mechanism is configured to continue the insertion from the intermediate insertion position by performing a predetermined continuous insertion operation including at least a part of an operation reverse to the initial detachment operation when the connector plug is inserted into the connector socket. It also functions as a continuous insertion mechanism.

  At the time of insertion, each contact is not yet conducted at the stage where it has been inserted to the intermediate insertion position by the initial insertion operation, and each contact is conducted in the process of insertion by the continuous insertion operation. In the process of detachment to the intermediate insertion position by the operation, the conduction of each contact is released.

  In the connector according to the fourth aspect configured as described above, at the time of detachment, first, the initial detachment operation is performed to the intermediate insertion position, but the initial detachment operation alone cannot be completely detached. In order to further disengage from the intermediate insertion position and complete the disengagement, it is necessary to perform a continuous disengagement operation. Then, the conduction of each contact is released in the process of separation by the initial separation operation.

  For this reason, when the contact is removed to the intermediate insertion position, the continuity of each contact has already been released. At that stage, the connector has not been completely removed, and the tip end of the plug outer cylinder is still outside the socket. It is in the state inserted in the cylinder part. Therefore, even if the contact is disconnected in a live line state and the contact is released and an arc is generated at that time, it occurs in a closed space inside the connector. The adverse effects of are suppressed.

  In addition, the insertion is first performed up to the intermediate insertion position by the initial insertion operation, but each contact is not conducted only by the initial insertion operation. In order to further advance the insertion from the intermediate insertion position and make each contact conductive, it is necessary to perform a continuous insertion operation.

  Therefore, conduction of each contact during insertion is performed in a state in which at least the distal end side of the plug outer cylinder portion is inserted into the socket outer cylinder portion. As a result, even if insertion is performed in a live line state and each contact becomes conductive and an arc is generated at that time, it occurs in a closed space inside the connector. Adverse effects are deterred.

  Therefore, according to the connector of the fourth aspect, the continuity and the continuity release of each contact during the connector insertion / removal operation are not directly visible to an external operator or the like at a position where the insertion is further advanced than the intermediate insertion position. Since it is performed in a state (in a sealed connector internal space), it is possible to more reliably suppress the adverse effects on the operator and the like due to the occurrence of arcs.

  Next, the invention according to claim 5 is the connector according to claim 4, wherein the connector plug is one of the members constituting each of the above-described mechanisms, and is arranged in the radial direction in the plug outer cylinder portion. A protruding portion is provided so as to protrude and has a predetermined length in the axial direction.

On the other hand, the connector socket includes a first guide groove, a second guide groove, and a space in which the protrusion can be rotated.
Of these, the first guide groove is one of the members constituting at least the initial insertion mechanism and the continuous detachment mechanism, and is provided so as to extend in the axial direction from the opening end of the socket outer cylinder portion. Defines the relative position of the connector plug in the outer peripheral direction (circumferential direction centered on the shaft center) relative to the connector socket during operation and continuous detachment operation. The connector plug is moved in the axial direction while being guided in the axial direction.

  The second guide groove is one of members constituting at least the continuous insertion mechanism and the initial detachment mechanism, and is provided so as to extend in the axial direction in the socket outer cylinder portion. The relative position in the outer circumferential direction of the connector plug with respect to the connector socket at the time of the detachment operation is defined as a position different from that at the time of the initial insertion operation and the continuous detachment operation, and the protrusion is provided at the time of the continuous insertion operation and the initial detachment operation. The connector plug is moved in the axial direction while being guided in the axial direction.

  Further, the protrusion rotationally movable space constitutes each of the above-described mechanisms, and the connector plug formed between the first guide groove and the second guide groove in the axial direction in the socket outer cylinder portion is in the intermediate insertion position. A space in which the protrusion is present when the connector plug is positioned at the intermediate insertion position, the connector plug being rotatable about its axis, and the rotation causes the protrusion to be at least a first guide groove. It can be freely moved from a position corresponding to the second guide groove to a position corresponding to the second guide groove.

  According to the connector according to claim 5 configured as described above, at the time of disconnection, the protrusion of the connector plug is guided while being guided by the second guide groove of the connector socket (initial disconnection operation). The second guide groove and the first guide groove are formed so that their positions are shifted in the axial direction, so that the protrusion is disengaged when the protrusion reaches the protrusion rotationally movable space (ie, the intermediate insertion position). Is forcibly stopped once. And in order to make it detach | leave continuously, it is necessary to continue detachment | leave, after rotating a connector plug and aligning a projection part to the position corresponding to a 1st guide groove (continuous detachment | leave operation).

  At the time of insertion, the projection of the connector plug is guided while being guided by the first guide groove of the connector socket (initial insertion operation), but the projection has reached the space where the projection can rotate (ie, intermediate insertion). The insertion is forcibly stopped once at the position). In order to continue the insertion, it is necessary to rotate the connector plug so that the protrusion is aligned with the position corresponding to the second guide groove, and then the insertion is continued (continuous insertion operation).

  In other words, the connector according to claim 5 is a more embodied version of the connector according to claim 4, and thus more reliably suppresses adverse effects on the workers and the like due to arc generation. The effects of the described invention can be obtained more reliably.

  Next, the invention according to claim 6 is the connector according to claim 4, wherein the connector plug is a cylindrical member that constitutes each of the above-described mechanisms and is provided rotatably about the axis. And the plug side screwing member in which the screw part screwed together with the screw receiving part formed in the outer peripheral surface of a connector socket was formed in the inner peripheral surface.

Moreover, the connector socket comprises each said mechanism, and is provided with the said screw | thread receiving part formed in the outer peripheral surface.
When the plug-side screw member and the screw receiving portion are inserted, the distal end side of the screw portion comes into contact with the distal end side of the screw receiving portion in the process of inserting the connector plug to the intermediate insertion position by the initial insertion operation. Therefore, the insertion is stopped when the insertion proceeds to the intermediate insertion position, and the insertion is continued by rotating the plug-side screwing member from the intermediate insertion position and screwing the screw portion into the screw receiving portion as a continuous insertion operation. At the time of detachment, the plug-side screw member is removed as an initial detachment operation in the direction opposite to that during the continuous insertion operation, and is removed to the intermediate insertion position. At the intermediate insertion position, the screw portion and the screw receiving portion The screwing is configured to be released.

  In the connector according to the sixth aspect configured as described above, further insertion from the intermediate insertion position at the time of insertion and removal to the intermediate insertion position at the time of removal are performed by screwing. For this reason, during insertion, each contact becomes conductive in the process of being inserted while the screw is being screwed in, and at the time of detachment, the detachment is advanced while the screw is being screwed (released). In the process, the conduction of each contact is released.

  In other words, the connector according to claim 6 is also a more embodied version of the connector according to claim 4, and thus more reliably suppresses adverse effects on the operator and the like due to arc generation. The effect of the invention described in (1) can be obtained more reliably.

  Next, the invention according to claim 7 is the connector according to claim 6, wherein the connector plug is provided so as to protrude in the radial direction at the plug outer tube portion, and has a predetermined length in the axial direction. A protrusion having a thickness is provided. In addition, the connector socket is provided so as to extend in the axial direction from the opening end of the socket outer cylinder portion, and defines the relative position of the connector plug in the outer peripheral direction with respect to the connector socket during each insertion operation and each removal operation. In addition, a guide groove is provided for moving the connector plug in the axial direction while guiding the protrusion in the axial direction at the time of each insertion operation and at the time of each detachment operation.

  According to the connector of the seventh aspect configured as described above, since the relative position of the connector plug in the outer peripheral direction with respect to the connector socket is defined, the connector insertion / removal operation can be performed stably.

  Next, the invention according to claim 8 is a connector set including a plurality of connectors used for each power supply line of each polarity in order to conduct / cut off a plurality of power supply lines having different polarities. All the connectors are the connectors according to claim 5 or claim 7. The protrusions (protrusions of the connector plugs) and the guide grooves (guide grooves of the connector sockets) of each connector are provided for each polarity so that insertion of connector plugs and connector sockets having different polarities is prevented. Each is formed in a different pattern.

  Examples of the plurality of different polarities include positive and negative electrodes for direct current, and three-phase alternating current phases for alternating current, for example. When a connector is used with each of such a plurality of polarities, there is a risk that a connector plug of a certain polarity will be inserted into a connector socket of a different polarity at the time of inserting the connector. The power supply source (power supply device etc.) and the supply destination (load device etc.) may be adversely affected.

  Accordingly, the protrusions of the connector plug and the corresponding guide grooves on the connector socket side (hereinafter also referred to as “protrusions / guide groove pairs”) are formed in different patterns for each polarity. The pattern here refers to, for example, the position and number of protrusion / guide groove pairs formed in the outer circumferential direction of the connector (circumferential direction centered on the axis), and the cross section of the protrusion / guide groove pair (cross section in the insertion direction). The shape of these is mentioned. That is, it can be said that the pattern is formed in a different pattern if the projection / guide groove pair of each polarity is formed so that the connector plug is not inserted into the connector socket unless they have the same polarity.

  Therefore, according to the eighth aspect of the invention, it is possible to prevent erroneous insertion / fitting between connector plugs and connector sockets having different polarities, and to securely connect connector plugs and connector sockets having the same polarity. Can be fitted.

It is a perspective view showing the connector (positive electrode side connector) of 1st Embodiment, (a) represents a positive electrode side pin plug, (b) represents the positive electrode side socket. It is a perspective view showing the connector (negative electrode side connector) of 1st Embodiment, (a) represents a negative electrode side pin plug, (b) represents the negative electrode side socket. It is each part sectional drawing (cross section parallel to an axial center) of the positive electrode side connector of 1st Embodiment. It is each part sectional drawing (cross section perpendicular | vertical to an axial center) of the positive electrode side connector of 1st Embodiment. It is sectional drawing of the negative electrode side socket of 1st Embodiment, (a) is a cross section parallel to an axial center, (b)-(e) is each part cross section perpendicular | vertical to an axial center. It is explanatory drawing for demonstrating the process of insertion / separation of the pin plug with respect to the socket in the connector of 1st Embodiment. It is explanatory drawing for demonstrating the process of insertion / separation of the pin plug with respect to the socket in the connector of 1st Embodiment. It is sectional drawing showing the connector (positive electrode side connector) of 2nd Embodiment, (a) is each sectional drawing (cross section parallel to an axial center) of a positive electrode side plug and a positive electrode side socket, (b) and (c) are FIG. 6 is a cross-sectional view of each part of the positive-side socket (a cross section perpendicular to the axis). It is explanatory drawing for demonstrating the process of the insertion / separation of the pin plug with respect to the socket in the connector of 2nd Embodiment.

Preferred embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
First, the external appearance of the connector of this embodiment will be described with reference to FIGS. 1 and 2. The connector according to the present embodiment is used, for example, in a communication facility such as a data center or a communication station to conduct / cut off DC power supply to various information communication devices such as routers and servers. Since the DC power supply path is conducted / cut off, the positive side connector for conducting / cutting off the positive side path and the negative side connector for conducting / cut off the negative side path are in a set. Used.

  Among these, the positive electrode side connector is composed of a positive electrode side pin plug 1 shown in FIG. 1A and a positive electrode side socket 2 shown in FIG. Continuity is achieved. Moreover, the negative electrode side connector is composed of a negative electrode side pin plug 3 shown in FIG. 2A and a negative electrode side socket 4 shown in FIG. 2B. Continuity is achieved.

  As shown in FIG. 1A, the positive side pin plug 1 constituting the positive side connector includes a pin contact 14 made of a conductor, a cylindrical pin case 12 that accommodates and holds the pin contact 14, and the pin case. 12 includes a plug body 11 for holding the pin case 12 and the pin contact 14 on the rear end side thereof, and a cylindrical screw body 16 provided so as to be rotatable over the outer peripheral surface of the plug body 11. ing.

  The pin contact 14 is electrically connected to the socket contact 24 (not shown in FIG. 1; see FIG. 3 etc.) of the positive side socket 2 to be fitted, and the rear end side thereof is the positive plug cable 5. The conductor portions are connected by, for example, crimping.

  Further, the tip end surface of the pin contact 14 is made of an insulating material, and has a predetermined thickness in the axial direction (direction in which the connector is inserted and removed and parallel to the axial center of each contact). A protective material 15 is provided.

  Thereby, when the positive electrode side pin plug 1 is viewed from the front end side in the axial center direction, the front end surface of the pin contact 14 is covered with the pin side insulating protective material 15. For this reason, even if an operator or the like tries to touch the pin contact 14 directly from the front end side in the axial center direction, the operator will touch the pin-side insulating protective material 15 before that, and contact with the pin contact 14 is suppressed.

  Further, two insertion keys 13a and 13b are provided on the outer peripheral surface of the pin case 12 so as to protrude in the radial direction. The insertion keys 13a and 13b are arranged so as to have a positional relationship that is 180 degrees apart from each other in the outer circumferential direction of the pin case 12, that is, a positional relationship that faces each other about the axis.

  The screw body 16 is a cylindrical member that is rotatably provided around an axis, and is screwed onto a screw receiving portion 22 formed on the outer peripheral surface of the positive side socket 2 on the inner peripheral surface thereof. A threaded portion 17 is formed. In the present embodiment, as will be described later, the screw portion 17 and the screw receiving portion 22 are configured to be screwed together at the final insertion stage after the insertion into the positive side socket 2 and the contacts 14 and 24 are conducted. ing. That is, in this embodiment, the screw part 17 and the screw receiving part 22 are provided in order to hold and fix the state in which the connector is completely fitted.

  FIG. 3A is a cross-sectional view (cross-section PP in the V view of FIG. 1A) for explaining the internal configuration of the positive-side pin plug 1. As shown in FIG. 3A, the front end surface of the pin contact 14 is located on the rear end side from the front end surface of the pin case 12 so as not to protrude outside from the front end surface (opening surface) of the pin case 12. Yes. A pin-side insulating protective material 15 is provided on the tip surface of the pin contact 14, and the tip-side surface of the pin-side insulating protective material 15 is located on the same plane as the opening surface of the pin case 12. Yes.

Each of the insertion keys 13a and 13b is provided at a position away from the front end surface of the pin case 12 by a predetermined distance from the rear end side.
When the positive-side pin plug 1 configured as described above is inserted (fitted) into the corresponding positive-side socket 2, the insertion keys 13 a and 13 b are inserted into the insertion grooves 23 a and 23 b of the positive-side socket 2. Will be inserted while being guided. At that time, the socket contact 24 of the positive side socket 2 is inserted into the socket insertion opening 18 which is a space between the outer peripheral surface of the pin contact 14 and the inner peripheral surface of the pin case 12.

  Next, as shown in FIG. 1B, the positive side socket 2 constituting the positive side connector has a configuration in which a socket contact 24 (see FIG. 3 and the like) is accommodated and held inside a cylindrical socket case 21. It has become. A screw receiving portion 22 is formed on the outer peripheral surface of the front end side of the socket case 21, and the screw portion 17 of the positive-side pin plug 1 is screwed into the screw receiving portion 22. The conductor portion of the positive socket cable 6 is connected to the rear end side of the socket contact 24 by, for example, crimping.

  A cylindrical socket-side insulating protective material made of an insulator on the front end surface of the socket contact 24 has a predetermined thickness in the axial direction and is formed along the annular shape of the front end surface. 25 is provided.

  Thereby, when the positive electrode side socket 2 is viewed from the front end side in the axial center direction, the front end surface of the socket contact 24 is covered with the socket side insulating protective material 25. Therefore, even if an operator or the like tries to touch the socket contact 24 directly from the front end side in the axial direction, the socket side insulating protection material 25 is touched before that, and contact with the socket contact 24 is thereby suppressed.

In addition, in the internal space of the socket contact 24, an axially movable insulating material 26 that is elastically movable in the axial direction is provided, which will be described in detail later.
In addition, a positional relationship extending from the opening end (tip) of the socket case 21 by a predetermined length in the axial direction on the inner peripheral surface of the socket case 21 and spaced apart from each other by 180 degrees in the inner peripheral direction, that is, the axial center Two first insertion grooves 23a and 23b are formed so as to be in a positional relationship opposite to each other.

  Further, although not shown in detail in FIG. 1B, positions extending 180 degrees away from each other in the inner circumferential direction so as to extend in the axial direction also on the rear end side of the inner circumferential surface of the socket case 21. Two second insertion grooves 23c and 23d are formed so as to be in a relationship.

  However, as shown in the W view of FIG. 1B and FIGS. 3 and 4, two first insertion grooves 23a and 23b formed on the opening end side (front end side) and the rear end side are formed. The two second insertion grooves 23c and 23d are in a positional relationship such that they do not overlap in the axial direction. Specifically, the positions are shifted by 90 degrees in the outer circumferential direction.

These insertion grooves 23a to 23d define the relative position in the outer peripheral direction of the positive electrode side pin plug 1 with respect to the positive electrode side socket 2 when the positive electrode side pin plug 1 is inserted.
3B and 3C are cross-sectional views for explaining the internal configuration of the positive electrode side socket 2. That is, FIG. 3B is a cross section QQ in the W view of FIG. 1B, and FIG. 3C is a cross section RR in the W view of FIG. Further, cross-sectional views of each part in the cross-sectional view of FIG. 3B, that is, cross-sectional views of four surfaces (four locations) perpendicular to the axial direction of the positive electrode side socket 2 are shown in FIGS.

  As shown in FIGS. 3B and 3C, the two first insertion grooves 23 a and 23 b are formed to extend a predetermined length from the open end to the rear end side of the socket case 21. And the free space 28 is formed in the rear-end side of each 1st insertion port 23a, 23b.

  The free space 28 is a space in which the insertion keys 13a, 13b of the positive side pin plug 1 can freely rotate about the axis. That is, when each insertion key 13a, 13b is located in this free space 28, the positive side pin plug 1 can be freely rotated, and by this rotation, each insertion key 13a, 13b is moved to each first insertion groove. It can be freely moved to a position corresponding to 23a, 23b or a position corresponding to each of the second insertion grooves 23c, 23d. Two second insertion grooves 23 c and 23 d are formed on the rear end side of the free space 28.

  Therefore, when the positive-side pin plug 1 is inserted into the positive-side socket 2, the insertion keys 13a and 13b of the positive-side pin plug 1 are forcibly stopped once they reach the free space 28. This is because the insertion keys 13a and 13b come into contact with the rear end surface inside the free space 28, that is, as shown in FIG. 4B, the rear end key contact surfaces 28a and 28b.

  In order to further advance the insertion from this state, it is necessary to rotate the positive-side pin plug 1 by 90 degrees and align the insertion keys 13a and 13b with the second insertion grooves 23c and 23d, as will be described later.

  Conversely, when the positive-side pin plug 1 is removed from the fully fitted state, the insertion keys 13a and 13b that move to the distal end side along the second insertion grooves 23c and 23d are free space. When it reaches 28, it is forcibly stopped once, so that the detachment of the positive side pin plug 1 is also stopped. This is because the insertion keys 13a and 13b come into contact with the front-side surface inside the free space 28, that is, the front-side key contact surfaces 28c and 28c as shown in FIG.

  In order to proceed further from this state, it is necessary to rotate the positive-side pin plug 1 by 90 degrees and align the insertion keys 13a and 13b with the first insertion grooves 23a and 23b, as will be described later.

  The axially movable insulating material 26 made of an insulator is disposed so as to be movable in the axial direction in the internal space of the socket contact 24 in which the pin contact 14 is inserted. That is, the rear end side is elastically supported by the spring 27, and this elastic support enables elastic movement from the reference position, which is the position shown in FIG. 3B, to the rear end side in the axial direction. In addition, at the reference position, the axially movable insulating material 26 has a tip in the axial direction protruding beyond the tip of the socket contact 24.

  When the positive-side pin plug 1 is inserted (fitted) into the positive-side socket 2 configured as described above, the pin case 12 is first inserted into the plug insertion port 29. As the insertion further proceeds, the pin contact 14 is inserted into the pin insertion port 30. At this time, the pin case 12 is inserted into a space between the outer peripheral surface of the socket contact 24 and the inner peripheral surface of the socket case 21 (corresponding to the outer tube insertion portion of the present invention).

Next, the negative side pin plug 3 and the negative side socket 4 constituting the negative side connector will be briefly described with reference to FIGS.
The negative side pin plug 3 has the same configuration as the positive side pin plug 1 shown in FIG. 1A except that the arrangement of the insertion key is different. That is, as shown in FIG. 2A, the negative side pin plug 3 includes a plug body 31, a pin case 32, a pin contact 34, a pin side insulation protective material 35, and a screw body 36 in which a screw portion 37 is formed. The negative electrode plug cable 7 is connected to the rear end side of the pin contact 34.

  Two insertion keys 33a and 33b are provided on the outer peripheral surface of the pin case 32 so as to protrude in the radial direction. The insertion keys 33a and 33b are arranged so as to have a positional relationship of 90 degrees apart from each other in the outer peripheral direction of the pin case 12.

  The negative side socket 4 also has the same configuration as the positive side socket 2 shown in FIG. 1B except that the arrangement of the insertion grooves is different. That is, as shown in FIGS. 2B and 5, the negative side socket 4 includes a socket case 41 having a screw receiving portion 42 formed on the front end side outer peripheral surface, and a socket contact 44 (shown in FIG. 2B). 5), a socket side insulating protective material 45, and an axially movable insulating material 46. As shown in FIG. 5A, the axially movable insulating material 46 is elastically supported by a spring 47 on the rear end side.

  5A is a cross-section SS in the Y view of FIG. 2B, and FIGS. 5B to 5E are cross-sectional views of respective parts in the cross-sectional view of FIG. 4 is a cross-sectional view of each surface (four locations) perpendicular to the axial direction of the negative-side socket 4. FIG.

  The negative socket 4 also has two first insertion grooves 43a and 43b on the opening end side, and two second insertion grooves 43c and 43d on the rear end side. The two first insertion grooves 43a and 43b on the opening end side and the two second insertion grooves 43c and 43d on the rear end side are positioned so as to be separated from each other by 90 degrees in the inner circumferential direction of the socket case 41. Is formed.

  However, as shown in Y view of FIG. 2B and FIG. 5, two first insertion grooves 43a and 43b formed on the opening end side (front end side) and two formed on the rear end side. The second insertion grooves 43c and 43d are in a positional relationship such that they do not overlap in the axial direction. Specifically, the positions are shifted by 180 degrees in the outer circumferential direction.

And as shown to Fig.5 (a), the free space 48 is formed between each 1st insertion groove 43a, 43b and each 2nd insertion groove 43c, 43d.
Therefore, when the negative side pin plug 3 is inserted into the negative side socket 4, the insertion keys 33 a and 33 b of the negative side pin plug 3 are forcibly stopped once when reaching the free space 48. This is because the insertion keys 33a and 33b come into contact with the rear end side inside the free space 48, that is, as shown in FIG. 5C, the rear end side key contact surfaces 48a and 48b. In order to further advance the insertion from this state, the negative side pin plug 3 may be rotated 180 degrees so that the insertion keys 33a and 33b are aligned with the second insertion grooves 43c and 43d.

  On the contrary, when the negative side pin plug 3 is removed from the completely fitted state, the insertion keys 33a and 33b moving to the tip side along the second insertion grooves 43c and 43d are free space. When it reaches 48, it is once forcibly stopped, whereby the removal of the negative side pin plug 3 is also stopped. This is because the insertion keys 33a and 33b come into contact with the front-side surface inside the free space 48, that is, the front-side key contact surfaces 48c and 48c as shown in FIG. To further disengage from this state, the negative side pin plug 3 may be rotated 180 degrees so that the insertion keys 33a and 33b are aligned with the first insertion grooves 43a and 43b.

  The process (procedure) for inserting and removing the pin plug from the socket in each connector of the present embodiment configured as described above will be described with reference to FIGS. The procedures for inserting / removing the positive connector and the negative connector are basically the same except that the rotation angle in the free space is different. Therefore, in FIGS. 6 and 7, the positive electrode side connector will be described as an example. Therefore, in the following description, unless otherwise specified, the positive side pin plug 1 is simply referred to as “pin plug 1” and the negative side socket is simply referred to as “socket 2”.

FIG. 6A shows a first state in which the pin plug 1 is not inserted into the socket 2.
In FIG. 6A, L1 is inserted into the socket 2 when it is inserted into the socket 2 in the pin plug 1 and the respective insertion keys 13a and 13b are located in the free space 28 in the socket 2. This is the distance of the part (intermediate insertion length). L2 is the distance (socket contact reachable length) from the open end of the socket 2 to the front end surface of the socket contact 24 inside the socket 2.

  FIG. 6B shows a second state in which the pin plug 1 is inserted into the socket 2 by a predetermined length from the first state. In this second state, the pin case 12 of the pin plug 1 is inserted into the socket 2, and the insertion keys 13 a and 13 b of the pin plug 1 are inserted into the first insertion grooves 23 a and 23 b of the socket 2. However, the contacts 14 and 24 are not yet conducted.

  When the insertion is further advanced from the second state while the insertion keys 13a and 13b are guided to the first insertion grooves 23a and 23b, the insertion keys 13a and 13b eventually reach the free space 28, The insertion is forcibly stopped. This state is the third state shown in FIG. The position at this time corresponds to the intermediate insertion position of the present invention, and the insertion operation so far corresponds to the initial insertion operation of the present invention.

  In this third state, the pin contact 14 of the pin plug 1 is inserted for the intermediate insertion length L1. However, since the socket contact reach length L2 in the socket 2 is set to be longer than the intermediate insertion length L1, the tip of the pin contact 14 has not yet reached the tip of the socket contact 24, and both are still non-conductive. It is.

  When the pin plug 1 is rotated 90 degrees from this third state to further insert, the fourth state shown in FIG. 6D is obtained, and the insertion keys 13a and 13b are connected to the second insertion grooves 23c, It is moved to a position corresponding to 23d.

  The socket 2 shown in FIG. 6 represents the cross section QQ in the W view of FIG.1 (b). Therefore, when the fourth state is represented by a cross section RR in the W view of FIG. 1B, it is as shown in FIG. That is, FIG. 6 (d) and FIG. 7 (a) are the same fourth state only in the cross-sectional direction.

  When the insertion is further advanced from the fourth state, the insertion keys 13a and 13b of the pin plug 1 are inserted while being guided by the second insertion grooves 23c and 23d of the socket 2, and eventually the pin contact 14 and the socket contact 24 are inserted. Contact and conduct.

The fifth state shown in FIG. 7B is a state in which the pin contact 14 and the socket contact 24 are brought into contact / conduction.
When the insertion is further advanced, the tip of the screw portion 17 of the pin plug 1 and the tip of the screw receiving portion 22 of the socket 2 come into contact with each other as in the sixth state shown in FIG. Therefore, when the insertion is advanced while the screw portion 17 and the screw receiving portion 22 are screwed together, the insertion is completed as in the seventh state shown in FIG.

  The insertion operation from the third state to the seventh state corresponds to the continuous insertion operation of the present invention. Further, in the process in which the insertion is performed in this manner, the axially movable insulating material 26 in the socket 2 moves to the rear end side while being pushed by the pin contact 14. For this reason, in the seventh state, the pin contact 14 receives a strong biasing force in the direction of detachment, but the insertion state is maintained without being detached by the screwing of the screw portion 17 and the screw receiving portion 22. The

On the other hand, when the pin plug 1 is detached from the seventh state, the pin plug 1 may be detached in the reverse order of the above-described insertion procedure.
That is, when the screwing of the screw portion 17 and the screw receiving portion 22 is released from the seventh state, the sixth state is obtained and the screwing is completely released. At this time, if there is no axially movable insulating material 26, it is necessary for the operator himself / herself to continue to pull out the pin plug 1 from the sixth state, but in this embodiment, the pin contact 14 is moved by the axially movable insulating material 26. Since the pin contact 14 receives the urging force, the pin contact 14 is immediately released to the fourth state by the urging force in the sixth state, and the conduction of the contacts 14 and 24 is also released in the process of the detachment. The The detachment operation so far corresponds to the initial detachment operation of the present invention.

  Then, by rotating the pin plug 1 by 90 degrees from the fourth state, each insertion key 13a, 13b is moved to a position corresponding to each first insertion groove, and a third state is obtained. Thereafter, the pin plug 1 can be completely detached from the socket 2 by pulling out the pin plug 1. The detachment operation until the detachment from the fourth state completely corresponds to the continuous detachment operation of the present invention.

  According to the connector of the present embodiment described above, the insulating protective materials 15 and 25 are provided on the tip surfaces of the contacts 14 and 24, respectively, so that it is difficult for an operator or the like to touch the contacts 14 and 24 directly. In addition, it is possible to suppress the influence of an arc generated during insertion / extraction work in a live line state on an external worker or the like.

  Therefore, an operator or the like can perform the connector insertion / removal operation reliably and safely. This is particularly effective when used as a connector for high voltage or a connector for conducting / interrupting a direct current power supply path where arcing is likely to occur.

  Further, since the pin-side insulation protection material 15 is provided so as not to protrude from the opening surface of the pin case 12 and the socket-side insulation protection material 25 is also provided so as not to protrude from the opening surface of the socket case 21, Or the like can be reliably prevented from directly touching each contact 14, 24.

  Further, in the socket 2, an axial center movable insulating material 26 is provided in the internal space of the socket contact 24. Therefore, it is possible to more reliably prevent an operator or the like from coming into direct contact with the socket contact 24.

  Moreover, in the connector of this embodiment, insertion / extraction is performed according to the procedure described with reference to FIGS. 6 and 7, and the conduction and release of the contacts 14 and 24 at the time of connector insertion / removal operation are performed by each insertion key. 13a and 13b are performed at a position where the insertion is further advanced than the intermediate insertion position located in the free space 28 in a state where it is not directly visible to an external worker or the like (in a sealed connector internal space). In particular, at the time of detachment, the detachment is forcibly stopped when each of the insertion keys 13a and 13b reaches the free space 28 even if the detachment is attempted at once. In addition, at that time, the conduction of the contacts 14 and 24 has already been released. Therefore, even if an arc occurs, it can be reliably prevented from jumping to the outside, and an adverse effect on the operator or the like due to the arc can be more reliably suppressed.

  Further, in the positive connector (FIG. 1) and the negative connector (FIG. 2), each insertion key of the pin plug and each corresponding insertion groove on the socket side are formed in different patterns. Therefore, it is possible to prevent erroneous insertion / fitting between pin plugs and sockets having different polarities, and it is possible to reliably fit pin plugs and sockets having the same polarity.

  Here, the correspondence between the components of the present embodiment and the components of the present invention will be clarified. In this embodiment, the pin case 12 corresponds to the plug outer cylinder part of the present invention, the socket case 21 corresponds to the socket outer cylinder part of the present invention, and the pin-side insulation protection material 15 corresponds to the plug side insulating part of the present invention. The socket side insulation protective material 25 corresponds to the socket side insulation portion of the present invention, the insertion keys 13a and 13b correspond to the projection portions of the present invention, and the axial center movable insulation material 26 corresponds to the movable insulation member of the present invention. The first insertion grooves 23a and 23b correspond to the first guide grooves of the present invention, the second insertion grooves 23c and 23d correspond to the second guide grooves of the present invention, and the positive plug cable 5 The positive socket cable 6, the negative plug cable 7, and the negative socket cable 8 all correspond to the power supply line of the present invention.

  The insertion keys 13a and 13b correspond to the detachment mechanisms of the present invention, the second insertion grooves 23c and 23d correspond to the initial detachment mechanism and the continuous insertion mechanism of the present invention, and the first insertion grooves 23a and 23b. Corresponds to the continuous removal mechanism and the initial insertion mechanism of the present invention, and the free space 28 corresponds to each separation mechanism of the present invention.

[Second Embodiment]
Next, the connector according to the second embodiment will be described with reference to FIGS. 8 and 9 focusing on the configuration different from that of the first embodiment.

  8A is a cross-sectional view of the pin plug 60 and the socket 70, and FIG. 8B is an M view of the pin plug 60 and an N view of the socket 70. The cross-sectional view of FIG. 8A is the cross-section JJ in the M view of FIG. 8B for the pin plug 60, and the cross-section of the socket 70 in the N view of FIG. 8B. KK. FIG. 8C shows two cross-sectional views (cross-section TT and cross-section UU) in the direction perpendicular to the axial center of the socket 70 in FIG.

The connector of this embodiment is comprised by the pin plug 60 and the socket 70 similarly to 1st Embodiment.
In the pin plug 60, a pin contact 64 is accommodated in a pin case 62 supported by a plug body 61, and a pin-side insulating protective material 65 is provided on the tip surface of the pin contact 64. The plug body 61 is provided with a cylindrical screw body 66 (corresponding to the plug-side screw member of the present invention) provided to be rotatable over the outer circumferential surface. The screw body 66 is a cylindrical member that is rotatably provided around an axis, and is a screw that is screwed onto a screw receiving portion 72 formed on the outer peripheral surface of the socket 70 on the inner peripheral surface thereof. A portion 67 is formed.

Further, two insertion keys 63a and 63b are provided on the outer peripheral surface of the pin case 62 with a positional relationship of 180 degrees apart from each other in the circumferential direction.
On the other hand, in the socket 70, a socket contact 74 is accommodated in a socket case 71, and a socket-side insulating protective material 75 is provided on the front end surface of the socket contact 74. Further, a screw receiving portion 72 is formed on the outer peripheral surface of the front end side of the socket case 71, and the screw portion 67 of the pin plug 60 is screwed into the screw receiving portion 72.

  Further, the inner peripheral surface of the socket case 71 extends in the axial direction from the opening end (tip) of the socket case 71 and is positioned 180 degrees away from each other in the inner peripheral direction, that is, the axial center. Two insertion grooves 73a and 73b are formed so as to be in a positional relationship facing each other.

  However, the insertion grooves 73a and 73b of the present embodiment are not provided so as to have different circumferential positions with respect to the intermediate insertion position as in the first embodiment. 73b is provided to guide insertion / removal from the initial stage of insertion to the completion of insertion (and from the initial stage of removal to the completion of separation). Therefore, in this embodiment, the free space as in the first embodiment is not formed.

The process (procedure) of insertion and removal operations of the connector of the present embodiment configured as described above will be described with reference to FIG.
FIG. 9A shows a first state in which the pin plug 60 is not inserted into the socket 70.

  In FIG. 9A, L3 is inserted into the socket 70 in the pin plug 60 and the tip of the screw portion 67 contacts the tip of the screw receiving portion 72 of the socket 70 (state of FIG. 9B). , The distance (intermediate insertion length) of the portion inserted in the socket 70. L4 is a distance (socket contact reachable length) from the open end of the socket 70 to the front end surface of the socket contact 74 in the inside thereof.

  FIG. 9B shows a second state in which the pin plug 60 is inserted from the first state, and the tip end of the screw portion 67 of the pin plug 60 comes into contact with the tip end of the screw receiving portion 72 of the socket 70. From the first state to the second state, an operator or the like simply inserts the pin plug 60 into the socket 70, and as in the second state, the screw portion 67 and the screw receiving portion 72 are in contact with each other. At the point of contact, the insertion is forcibly stopped. The position at this time corresponds to the intermediate insertion position of the present invention, and the insertion operation so far corresponds to the initial insertion operation of the present invention.

  In this second state, the pin contact 64 of the pin plug 60 is inserted by the intermediate insertion length L3. However, since the socket contact reach length L4 in the socket 70 is set to be longer than the intermediate insertion length L3, the tip of the pin contact 64 has not yet reached the tip of the socket contact 74, and both are still non-conductive. It is.

  From this second state, when the screw body 66 is turned and screw tightening (screwing) is advanced for further insertion, the insertion continues and eventually the pin contact 64 and the socket contact 74 come into contact / conduction. . The third state shown in FIG. 9C is a state in which the pin contact 64 and the socket contact 74 are in contact with each other.

  Then, by further proceeding with the insertion, the insertion is finally completed as in the fourth state shown in FIG. Note that the insertion operation from the second state to the fourth state corresponds to the continuous insertion operation of the present invention.

On the other hand, when the pin plug 60 is detached from the fourth state, the pin plug 60 may be detached by a procedure in the reverse order to the above-described insertion procedure.
That is, from the fourth state, when the screw body 66 is turned in the opposite direction to the insertion direction and the screw portion 67 and the screw receiving portion 72 are unscrewed, the third state is reached and the second state is reached. Thus, the screwing is completely released. In the process of loosening and removing the screw main body 66 in this way, the connection / conduction state of each contact 64, 74 is released. The detachment operation until the second state is reached, that is, the detachment operation until the screwing of the screw portion 67 is completely released corresponds to the initial detachment operation of the present invention.

  When in the second state, the screwing is released. Therefore, thereafter, the operation of loosening the screw body 66 is stopped, and the pin plug 60 can be completely detached from the socket 70 by simply pulling out the pin plug 60 from the socket 70. The detachment operation until the detachment from the second state completely corresponds to the continuous detachment operation of the present invention.

  According to the connector of the present embodiment described above, further insertion from the intermediate insertion position at the time of insertion and removal to the intermediate insertion position at the time of removal are performed by screwing of the screw portion 67 and the screw receiving portion 72. . For this reason, at the time of insertion, the contacts 64 and 74 become conductive in a process in which the insertion is advanced by screwing of the screw portion 67 and the screw receiving portion 72. At the time of detachment, the continuity of the contacts 64 and 74 is released in the process of detachment while releasing the screwing.

  As a result, even when an arc is generated when the contacts 64 and 74 are conducted and when the conduction is released, the arc is generated (in a sealed connector internal space) where it cannot be directly seen by an external worker or the like. Will do.

  Therefore, as in the first embodiment, even if an arc occurs, it can be reliably prevented from popping out to the outside, and the adverse effects on the operator and the like due to the arc can be more reliably suppressed.

  Also in this embodiment, when used as a plurality of connectors having different polarities as in the first embodiment, the insertion keys 63a and 63b and the corresponding insertion grooves 73a and 73b are provided with polarities. You may make it form with a different pattern for every.

[Modification]
Although the embodiments of the present invention have been described above, the embodiments of the present invention are not limited to the above-described embodiments, and can take various forms as long as they belong to the technical scope of the present invention. Needless to say.

  For example, the formation pattern of the position, shape, number, etc. of the insertion keys 13a, 13b of the positive side pin plug 1 and the insertion keys 33a, 33b of the negative side pin plug shown in the first embodiment is merely an example. The formation pattern such as how many insertion keys are used and in what shape can be determined as appropriate.

Also in the second embodiment, the socket 70 may be provided with the axially movable insulating material 26 (see FIG. 3 and the like) supported by the spring 27 as in the socket of the first embodiment.
In the present embodiment, the connector used in the power supply path for supplying DC power has been described as an example, but this is also an example only, regardless of whether it is DC or AC, Regardless of the type, the present invention can be applied to any connector for conducting / cutting off a current path.

  In the present embodiment, a single-core connector has been described as an example, but the present invention can also be applied to a multi-core connector.

  DESCRIPTION OF SYMBOLS 1 ... Positive electrode side pin plug, 2 ... Positive electrode side socket, 3 ... Negative electrode side pin plug, 4 ... Negative electrode side socket, 5 ... Positive electrode plug cable, 6 ... Positive electrode socket cable, 7 ... Negative electrode plug cable, 8 ... Negative electrode socket cable, 11, 31, 61 ... plug body, 12, 32, 62 ... pin case, 13a, 13b, 33a, 33b, 63a, 63b ... insertion key, 14, 34, 64 ... pin contact, 15, 35, 65 ... pin side insulation protection Material: 16, 36, 66 ... Screw body, 17, 37, 67 ... Screw portion, 18 ... Socket insertion port, 21, 41, 71 ... Socket case, 22, 42, 72 ... Screw receiving portion, 23a, 23b, 43a , 43b ... first insertion groove, 23c, 23d, 43c, 43d ... second insertion groove, 24, 44, 74 ... socket contact, 25, 45, 75 ... socket side Edge protective material, 26, 46 ... axially movable insulating material, 27, 47 ... spring, 28, 48 ... free space, 28a, 28b, 48a, 48b ... rear end side key contact surface, 28c, 28d, 48c, 48d ··· Key contact surface on tip side, 60 ··· Pin plug, 70 ··· Socket, 73a, 73b ··· Insertion groove

Claims (8)

A connector plug having a pin contact made of a conductor, and a cylindrical plug outer cylinder portion that accommodates the pin contact;
A cylindrical socket contact made of a conductor and configured to be electrically connected to the pin contact when the pin contact is inserted, and a cylindrical member that accommodates the socket contact, and an inner peripheral surface thereof A connector socket having a socket outer cylinder portion configured such that an outer cylinder insertion portion into which the plug outer cylinder portion is inserted is present between an outer peripheral surface of the socket contact; and
And inserting the connector plug into the connector socket so that the pin contact is inserted into the socket contact while the plug outer tube portion is inserted into the outer tube insertion portion. A connector configured to conduct electrically,
The pin contact is provided with a plug-side insulating portion that is an insulating member having a predetermined thickness in an axial direction parallel to the axial center of each contact in a direction in which the connector is inserted and withdrawn at least at a front end surface thereof. And
The socket contact is an insulating member having a predetermined thickness in the axial direction at least at the front end surface thereof, and a cylindrical socket side insulating portion formed so as to follow a substantially annular shape of the front end surface. A connector characterized by being provided. The connector according to claim 1,
The connector plug is formed so that the plug-side insulating portion does not protrude to the outside from the opening surface of the plug outer cylinder portion,
The connector socket is formed so that the socket-side insulating portion does not protrude outward from the opening surface of the socket outer tube portion. The connector according to claim 1 or 2, wherein
In the socket contact, an internal space into which the pin contact is inserted is provided with a movable insulating member made of an insulator and configured to be movable in the axial direction in the internal space.
The movable insulating member is disposed at a predetermined reference position such that the tip end in the axial direction protrudes at least from the tip end of the socket contact, and is elastically supported by an elastic member. A connector configured to be elastically movable from the reference position toward the rear end side in the axial direction. It is a connector given in any 1 paragraph of Claims 1-3,
From the state in which the connector plug is inserted into the connector socket and the contacts are conductive, the connector plug is detached from the connector socket by a predetermined initial detachment operation, and the tip of the pin contact is An initial detachment mechanism for stopping the detachment by the initial detachment operation when the detachment proceeds from the opening surface of the socket outer cylinder portion to an intermediate insertion position that is a position inserted by a predetermined intermediate insertion length in the axial direction; ,
A continuous detachment mechanism for completely detaching the connector plug from the connector socket by performing a predetermined continuous detachment operation from a state where the initial detachment mechanism is disengaged to the intermediate insertion position;
With
The continuous detachment mechanism inserts the connector plug by a predetermined initial insertion operation including at least a part of an operation reverse to the continuous detachment operation when the connector plug is inserted into the connector socket. It also functions as an initial insertion mechanism for stopping the insertion when the insertion proceeds to the intermediate insertion position,
The initial detachment mechanism performs insertion from the intermediate insertion position by performing a predetermined continuous insertion operation including at least a part of an operation reverse to the initial detachment operation when the connector plug is inserted into the connector socket. Also functions as a continuous insertion mechanism to continue,
At the time of insertion, each contact is not yet conducted at the stage of insertion to the intermediate insertion position by the initial insertion operation, each contact is conducted in the process of insertion by the continuous insertion operation, and at the time of detachment, The connector is configured such that conduction of each contact is released in the process of detachment to the intermediate insertion position by the initial detachment operation. The connector according to claim 4,
The connector plug is
One of the members constituting each mechanism, provided in the plug outer cylinder portion so as to protrude in the radial direction thereof, provided with a protrusion having a predetermined length in the axial direction,
The connector socket is
One of the members constituting at least the initial insertion mechanism and the continuous detachment mechanism, and provided to extend from the opening end of the socket outer tube portion in the axial direction, during the initial insertion operation and the The connector plug defines the relative position in the outer peripheral direction of the connector plug with respect to the connector socket during the continuous detachment operation, and guides the protrusion in the axial direction during the initial insertion operation and the continuous detachment operation. A first guide groove for moving the shaft in the axial direction;
At least one of the members constituting the continuous insertion mechanism and the initial detachment mechanism, provided to extend in the axial direction in the socket outer cylinder portion, and during the continuous insertion operation and the initial detachment operation In the outer peripheral direction of the connector plug with respect to the connector socket in a position different from the initial insertion operation and the continuous detachment operation, and the protrusion during the continuous insertion operation and the initial detachment operation A second guide groove for moving the connector plug in the axial direction while guiding the portion in the axial direction;
Each of the mechanisms is configured, and the connector plug formed between the first guide groove and the second guide groove in the axial direction in the socket outer tube portion is positioned at the intermediate insertion position. A space where the protrusion is present when the connector plug is rotatable about the axis at the intermediate insertion position, and the rotation causes the protrusion to be at least the first guide groove. A protrusion rotationally movable space configured to be freely movable between a position corresponding to the second guide groove and a position corresponding to the second guide groove;
A connector characterized by comprising: The connector according to claim 4,
The connector plug is a cylindrical member that constitutes each of the mechanisms and is provided to be rotatable about an axis, the screw receiving portion formed on the outer peripheral surface of the connector socket on the inner peripheral surface thereof A plug-side screwing member formed with a screw part to be screwed with,
The connector socket constitutes each of the mechanisms, and includes the screw receiving portion formed on the outer peripheral surface,
The plug-side screwing member and the screw receiving portion are
During insertion, the distal end side of the screw portion abuts on the distal end side of the screw receiving portion in the process in which the connector plug is inserted to the intermediate insertion position by the initial insertion operation. The insertion is continued by rotating the plug side screwing member as the continuous insertion operation from the intermediate insertion position and screwing the screw part into the screw receiving part. At the time of detachment, as the initial detachment operation, the plug side screwing member is separated to the intermediate insertion position by rotating in the opposite direction to that at the time of the continuous insertion operation. A connector characterized by being configured so that screwing with a screw receiving portion is released. The connector according to claim 6,
The connector plug is provided so as to protrude in the radial direction of the plug outer tube portion, and includes a protrusion having a predetermined length in the axial direction,
The connector socket is provided so as to extend from the opening end of the socket outer tube portion in the axial direction, and in the outer peripheral direction of the connector plug with respect to the connector socket at the time of each insertion operation and at the time of each detachment operation. A guide groove is provided for defining the relative position and for moving the connector plug in the axial direction while guiding the protrusion in the axial direction at the time of each insertion operation and at each detachment operation. Features a connector. A connector set comprising a plurality of connectors used for each polarity power supply line in order to conduct / cut off a plurality of power supply lines having different polarities,
The plurality of connectors are all connectors according to claim 5 or claim 7,
The protrusion and the guide groove of each connector are formed in different patterns for each polarity so as to prevent insertion of the connector plug and the connector socket having different polarities. Connector set.