JP2016154094A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a degree of freedom of a fitting direction while suppressing components from increasing in number and kind.SOLUTION: A connector comprises: a first connector 2 having a plurality of cylindrical terminals 10 which are arranged concentrically and an insulating first housing 20 in which the plurality of cylindrical terminals 10 are stored at intervals at a cylindrical fitting part 21; and a second connector 3 having terminals 30 in the same shape which are in electric contacts with the cylindrical terminals 10 and corresponding to the plurality of cylindrical terminals 10 one to one, an insulating second housing 50 in which the plurality of terminals 30 are stored, and at least one lock member 60 locking the terminals 30 to the second housing 50. The second housing 50 has an insertion path 51 for each of the plurality of terminals 30 into which the terminal 30 is inserted, a retaining part 52 for each of the plurality of terminals 30, as an end of the insertion path 51 on the side of the first connector 2, holding the terminal 30, and a fitting groove 53 into which the lock member 60 locking a locked part 32 of the terminal 30 is inserted and fitted and which communicates with the insertion path 51 of the terminal 30.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connector.

  2. Description of the Related Art Conventionally, a connector with a high degree of freedom in the fitting direction between first and second connectors that are fitted and electrically connected to each other is known. For example, Patent Document 1 below discloses this type of connector. The first connector of Patent Document 1 includes three terminals having cylindrical contact portions having substantially the same diameter and different shapes, and a housing that accommodates these terminals. In the first connector, since the three contact portions are arranged in the axial direction, cylindrical insulators having different shapes are formed between the adjacent contact portions so that the adjacent contact portions do not conduct with each other. Is interposed. Moreover, the 2nd connector of patent document 1 is provided with three terminals from which the length which each contacts the internal peripheral surface of three contact parts of a 1st connector, and the housing which accommodates these terminals.

Japanese Patent No. 4693019

  As described above, the conventional connector requires various parts such as a terminal having a different shape or an insulator. For this reason, in this kind of connector which raises the freedom degree of a fitting direction, there exists room for improvement in terms of productivity or cost.

  Accordingly, an object of the present invention is to provide a connector that can suppress an increase in the number of parts while ensuring a degree of freedom in the fitting direction.

  In order to achieve the above object, the present invention comprises a plurality of cylindrical terminals formed in a cylindrical shape and arranged concentrically, and an insulating member, and a fitting portion with a fitting partner is formed in a cylindrical shape and A first connector having a first housing in which a plurality of cylindrical terminals are accommodated in the fitting portion with a gap in the radial direction and / or axial direction of the cylindrical terminals, and the cylindrical terminals Each of the plurality of cylindrical terminals having a contact portion that is in electrical contact with the electric wire and an electric wire connection portion that is electrically connected to the electric wire, and an insulating member. And a cylindrical or / and cylindrical second housing fitted along the axial direction inside the cylindrical fitting portion of the first housing, and the terminal engaged with the second housing. At least one locking to stop A second connector having a material, wherein the second housing includes a plurality of insertion paths for each of the terminals in which the terminals are inserted on the first connector side along the axial direction, and the insertion path A first connector side end, a plurality of holding portions for holding the terminals, and the locking members for locking the locked portions of the terminals are inserted and fitted, A fitting groove communicating with the insertion path of the terminal.

  Here, the connector is preferably configured as follows. The first connector has first to third cylindrical terminals as the cylindrical terminals, and the second connector has first to third terminals as the terminals, and the first and second terminals. A first locking member as the locking member for locking each of the locked portions, and a second locking member as the locking member for locking the locked portion of the third terminal. And having. The first housing is disposed concentrically with the first cylindrical terminal, and a column portion that holds the first cylindrical terminal in a state where the outer peripheral surface of the first cylindrical terminal is exposed; A first cylindrical portion as the fitting portion that holds the second cylindrical terminal in a state where the cylindrical portions are arranged concentrically and the inner peripheral surface of the second cylindrical terminal is exposed, and the first cylindrical portion As the fitting portion that is arranged concentrically with the third cylindrical terminal on the second connector side, and holds the third cylindrical terminal in a state where the inner peripheral surface of the third cylindrical terminal is exposed. A second cylindrical portion. The second housing is disposed concentrically with the first to third insertion paths as the insertion paths for each of the first to third terminals, and the columnar portion and the first cylindrical portion of the first housing. A cylindrical portion inserted into an annular portion between the column portion and the first cylindrical portion, and a concentric arrangement with the second cylindrical portion of the first housing, and inward of the second cylindrical portion. A cylindrical portion to be inserted. The cylindrical portion of the second housing holds the first terminal in a state where the contact portion of the first terminal with the outer peripheral surface of the first cylindrical terminal is exposed radially inward. As the holding part for holding the second terminal in a state where the contact part between the first holding part as the second terminal and the inner peripheral surface of the second cylindrical terminal in the second terminal is exposed to the outside in the radial direction. A second holding part. The cylindrical portion of the second housing is inserted and fitted with a first fitting groove as the fitting groove into which the first locking member is inserted and fitted, and the second locking member. The third terminal in a state where the contact portion between the second fitting groove as the fitting groove and the inner peripheral surface of the third cylindrical terminal in the third terminal is exposed to the outside in the radial direction. And a third holding part as the holding part to hold. The first locking member is embedded in the first fitting groove.

  The connector according to the present invention includes a first connector in which a plurality of cylindrical terminals are arranged to be shifted from each other in a first housing made of an insulating member. For this reason, this 1st connector does not need to arrange | position an insulator separately between the several cylindrical terminal. On the other hand, this connector has at least one locking member for locking the plurality of terminals to the second housing. However, in the connector according to the present invention, the plurality of terminals of the second connector are shared parts formed in the same shape. Therefore, this connector can suppress an increase in the number of parts while ensuring the degree of freedom in the fitting direction between the first connector and the second connector.

FIG. 1 is a perspective view illustrating a connector according to an embodiment. 2 is a cross-sectional view of the connector taken along line X1-X1 in FIG. FIG. 3 is a perspective view showing the terminal of the embodiment. Drawing 4 is a perspective view which looked at a terminal of an embodiment from another angle. FIG. 5 is a perspective view illustrating a second housing according to the embodiment. FIG. 6 is a rear view of the second housing as seen in the direction of arrow A in FIG. Drawing 7 is a perspective view which looked at the 2nd housing of an embodiment from another angle. 8 is a cross-sectional view of the second housing taken along line X2-X2 of FIG. FIG. 9 is a development view of the second connector of the embodiment. FIG. 10 is a perspective view of a second housing incorporating a terminal. FIG. 11 is a perspective view of the second housing in which the terminal is incorporated as seen from a different angle. FIG. 12 is a perspective view showing the cover member of the embodiment. FIG. 13 is a perspective view showing the second connector of the embodiment. FIG. 14 is a perspective view of the second connector of the embodiment as seen from another angle. 15 is a cross-sectional view of the second connector taken along line X3-X3 in FIG. 16 is a cross-sectional view of the second connector taken along line X4-X4 of FIG.

  Hereinafter, embodiments of a connector according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment.

[Embodiment]
One embodiment of a connector according to the present invention will be described with reference to FIGS.

  Reference numeral 1 in FIGS. 1 and 2 represents the connector of the present embodiment. The connector 1 includes a first connector 2 and a second connector 3 that are fitted and electrically connected to each other. The connector 1 is configured so that the fitting direction between the first connector 2 and the second connector 3 is not restricted, and the first connector 2 and the second connector 3 are located at any position 360 degrees. Can be fitted together.

  The first connector 2 has a plurality of cylindrical terminals 10 formed in a cylindrical shape and arranged concentrically. The cylindrical terminal 10 is made of a conductive metal material or the like. Furthermore, the first connector 2 has a first housing 20 made of an insulating material such as synthetic resin. The 1st housing 20 forms the fitting part 21 with the 2nd connector 3 which is a fitting other party cylindrically. The fitting direction of the first connector 2 and the second connector 3 is a direction along the axial direction of the central axis of the fitting portion 21. The fitting portion 21 accommodates a plurality of cylindrical terminals 10. The plurality of cylindrical terminals 10 are accommodated at intervals in a cylindrical inner portion of the fitting portion 21. For example, each cylindrical terminal 10 is accommodated while being shifted in the radial direction and / or the axial direction of the cylindrical terminal 10.

  Specifically, the first connector 2 of the present embodiment includes first to third cylindrical terminals 10A, 10B, and 10C as the cylindrical terminals 10. In the first cylindrical terminal 10 </ b> A, the outer peripheral surface is an electrical contact portion with the second connector 3. In the second and third cylindrical terminals 10 </ b> B and 10 </ b> C, the inner peripheral surface is an electrical contact portion with the second connector 3. For example, the first to third cylindrical terminals 10A, 10B, and 10C are each formed to have an equivalent thickness. On the other hand, the diameter is increased in the order of the outer peripheral surface of the first cylindrical terminal 10A, the inner peripheral surface of the second cylindrical terminal 10B, and the inner peripheral surface of the third cylindrical terminal 10C. The first and second cylindrical terminals 10 </ b> A and 10 </ b> B are arranged at substantially the same position in the axial direction in the fitting portion 21. The third cylindrical terminal 10C is arranged in the fitting portion 21 so as to be shifted in the axial direction so as to be closer to the second connector 3 than the first and second cylindrical terminals 10A and 10B.

  In addition, the first housing 20 of the present embodiment includes a first cylindrical portion 22 and a second cylindrical portion 23 that form a fitting portion 21, and a concentric column portion 24 inside the fitting portion 21. The first cylindrical terminal 10 </ b> A is held by the column portion 24. The column portion 24 is a columnar portion arranged concentrically with the first cylindrical terminal 10A, and the first cylindrical terminal is exposed in a state where the outer peripheral surface of the first cylindrical terminal 10A is exposed from its outer peripheral surface. Hold 10A. The second cylindrical terminal 10 </ b> B is held by the first cylindrical portion 22. The first cylindrical portion 22 is a cylindrical portion disposed concentrically with the second cylindrical terminal 10B, and the first cylindrical portion 22 is exposed in a state where the inner peripheral surface of the second cylindrical terminal 10B is exposed from its inner peripheral surface. Two cylindrical terminals 10B are held. A cylindrical portion 24 is concentrically disposed inside the first cylindrical portion 22. The third cylindrical terminal 10 </ b> C is held by the second cylindrical portion 23. The second cylindrical portion 23 is disposed concentrically with the third cylindrical terminal 10C on the second connector 3 side of the first cylindrical portion 22, and exposes the inner peripheral surface of the third cylindrical terminal 10C from its own inner peripheral surface. In this state, the third cylindrical terminal 10C is held. The first cylindrical portion 22 and the second cylindrical portion 23 each have an outer peripheral surface having the same diameter.

  Further, the first housing 20 is provided with an electrical connection member (not shown) such as a bus bar, a relay terminal, and an electric wire that are individually electrically connected to the first to third cylindrical terminals 10A, 10B, and 10C. Yes. The electrical connection member is made of, for example, a conductive metal material that is electrically connected to an electrical device (not shown) provided with the first connector 2, and can supply power to the electrical device. It is responsible for transmission and reception of signals with electrical equipment.

  The first housing 20 is formed, for example, by insert molding including the first to third cylindrical terminals 10A, 10B, 10C and an electrical connection member.

  Next, the second connector 3 will be described.

  The second connector 3 is prepared for each of the plurality of cylindrical terminals 10 and has the same number of terminals 30 that are individually electrically connected to the respective cylindrical terminals 10. The terminal 30 has a terminal body 31 that is electrically connected to the cylindrical terminal 10 and the electric wire 40 (FIGS. 3 and 4). The terminal body 31 includes a contact portion 31 a that is in electrical contact with the cylindrical terminal 10, and a wire connection portion 31 b that is electrically connected to the electric wire 40. Further, the terminal 30 includes a locked portion 32 and a guided portion 33 that protrude from the terminal body 31. The locked portion 32 is a portion that restricts movement of the terminal 30 relative to the second housing 50 described later by being locked by a locking member 60 described later. The guided portion 33 is a part that guides the terminal 30 when the terminal 30 is inserted into the second housing 50, and a part that restricts the movement of the terminal 30 relative to the second housing 50.

  This exemplary terminal 30 is formed by press-working a conductive plate-like metal material or the like. The terminal 30 is erected from both ends in a rectangular plate-shaped base portion 31c and a width direction of the base portion 31c (a direction orthogonal to the insertion direction of the terminal 30 into the second housing 50 on the plane of the base portion 31c). And a side portion 31d.

  In the terminal main body 31, the contact part 31a is arrange | positioned in the space enclosed by the base 31c and the side part 31d. In the process of forming the terminal 30, a rectangular piece extends on the same plane from the tip of the base 31c (the end on the first connector 2 side). The contact portion 31a is formed by folding back one end portion of the base portion 31c from the distal end of the base portion 31c toward the electric wire connecting portion 31b and folding the end portion of this piece portion toward the distal end side of the base portion 31c in the same direction. The contact portion 31a has elasticity due to such a shape, and generates a reaction force in a direction away from the base portion 31c when pushed toward the base portion 31c. The contact part 31a can maintain an electrical contact state with the cylindrical terminal 10 by the reaction force.

  The electric wire connection portion 31 b is a portion that is electrically connected to the core wire of the electric wire 40. The connection is made by, for example, crimping. The wire connection portion 31b is formed by crimping the two pieces before crimping to the core wire of the wire 40.

  In the present embodiment, at least one locked portion 32 is erected from a plane opposite to the contact portion 31a in the base portion 31c. In this example, two locked portions 32 are provided. In the molding process of the terminal 30, two rectangular pieces having one side as a fixed end are formed opposite to the base 31c. The fixed ends are provided on both ends in the width direction of the base 31c. The two locked portions 32 are formed by bending the respective one portions from the fixed end. The two locked portions 32 are disposed between the contact portion 31a and the wire connecting portion 31b.

  The guided portion 33 is protruded from the terminal body 31 in a direction intersecting with the radial direction and the axial direction, and a plurality of guided portions 33 are provided. The guided portion 33 of the present embodiment is a rectangular piece projecting from both ends in the width direction of the base portion 31c in the width direction.

  The plurality of terminals 30 provided on the second connector 3 are each formed into the same shape. Specifically, the second connector 3 of the present embodiment has first to third terminals 30A, 30B, and 30C as the terminals 30 thereof. 30 A of 1st terminals electrically contact with the outer peripheral surface of 10 A of 1st cylindrical terminals in the contact part 31a after the 1st connector 2 and the 2nd connector 3 are fitted. The first terminal 30A is electrically connected to the core wire of the electric wire 40A at the electric wire connecting portion 31b. The second terminal 30B is in electrical contact with the inner peripheral surface of the second cylindrical terminal 10B at the contact portion 31a after the first connector 2 and the second connector 3 are fitted. This 2nd terminal 30B is electrically connected with the core wire of the electric wire 40B in the electric wire connection part 31b. The third terminal 30C is in electrical contact with the inner peripheral surface of the third cylindrical terminal 10C at the contact portion 31a after the first connector 2 and the second connector 3 are fitted. The third terminal 30C is electrically connected to the core wire of the electric wire 40C at the electric wire connecting portion 31b.

  Further, the second connector 3 has a second housing 50 made of an insulating material such as synthetic resin. The second housing 50 has a columnar shape and / or a cylindrical fitting portion (a cylindrical portion 54 and a columnar portion to be described later) that are fitted inward of the fitting portion 21 of the first housing 20 along the axial direction described above. 55). The second housing 50 is formed in a columnar shape and / or a cylindrical shape including a fitting portion. In the second housing 50, a plurality of terminals 30 (first to third terminals 30A, 30B, 30C) are accommodated.

  In the second housing 50, an insertion path 51 is formed for each of the plurality of terminals 30 into which the terminals 30 are inserted on the first connector 2 side along the axial direction described above (FIGS. 5 to 8). The insertion path 51 is formed on the outer peripheral surface or inside of the second housing 50. An end of each insertion path 51 opposite to the first connector 2 side is used as an insertion port for the terminal 30. On the other hand, the end of each insertion path 51 on the first connector 2 side is used as a holding portion (cavity) 52 that holds the inserted terminal 30.

  The second housing 50 has a guide groove 51 a for inserting the terminal 30 along the insertion path 51. The guide groove 51 a is a groove communicating with the insertion path 51 and is provided for each insertion path 51. The guide groove 51 a guides the guided portion 33 along the insertion direction into the insertion path 51 while covering the two flat surfaces of the rectangular piece that is the guided portion 33 of the terminal 30 with two groove sidewalls. Is. For this reason, the guide groove 51 a extends in the axial direction (the insertion direction of the terminal 30) in accordance with the shape of the guided portion 33 at both ends of the insertion path 51. The terminal 30 is guided along the insertion path of the insertion path 51 by the guided portion 33 and the guide groove 51a. Further, between the guided portion 33 and the guide groove 51a, the two planes of the guided portion 33 (rectangular piece) are locked by the two groove side walls of the guide groove 51a. Therefore, the guided portion 33 and the guide groove 51a can also prevent the terminal 30 from dropping from the insertion path 51 in the locking direction.

  Here, the terminal 30 inserted up to the holding portion 52 can also be pulled out from the insertion path 51. For this reason, the second connector 3 is provided with at least one locking member 60 for locking the terminal 30 to the second housing 50 and preventing the terminal 30 from coming off from the insertion path 51 in the drawing direction. . The locking member 60 prevents the terminal 30 from coming off from the insertion path 51 by locking the locked portion 32 of the terminal 30. The locking member 60 is attached to the fitting groove 53 formed in the second housing 50. The fitting groove 53 is a groove having an opening on the outer peripheral surface side of the second housing 50, and the locking member 60 is inserted and fitted through the opening. The fitting groove 53 communicates with the insertion path 51. Part of the locking member 60 (latching portions 61a, 61b, and 62a described later) is inserted through the fitting groove 53 closer to the insertion port than the locked portion 32 of the terminal 30 in the insertion path 51. . The insertion position of a part of the locking member 60 is set to a position where a poor electrical contact between the terminal 30 and the cylindrical terminal 10 does not occur due to a positional shift in the holding portion 52 of the terminal 30. Thereby, in this 2nd connector 3, even if the force to the extraction direction is added to the terminal 30, since the to-be-latched part 32 contact | abuts a part of locking member 60, the terminal 30 to the extraction direction Can be prevented from coming off (that is,) from the insertion path 51.

  Specifically, first to third insertion paths 51A, 51B, and 51C for the first to third terminals 30A, 30B, and 30C are formed in the second housing 50 as insertion paths 51, respectively. In the first to third insertion paths 51A, 51B, 51C, the first to third holding portions 52A, 52B are provided as the holding portions 52 for the first to third terminals 30A, 30B, 30C, respectively. , 52C are provided. The first holding portion 52A holds the first terminal 30A in a state where the contact portion 31a of the first terminal 30A is exposed radially inward. The second holding portion 52B holds the second terminal 30B in a state where the contact portion 31a of the second terminal 30B is exposed to the outside in the radial direction. The third holding portion 52C holds the third terminal 30C with the contact portion 31a of the third terminal 30C exposed to the outside in the radial direction.

  Here, the second housing 50 includes a cylindrical portion 54 and a columnar portion 55 in order from the first connector 2 side. The cylindrical portion 54 is disposed concentrically with the cylindrical portion 24 and the first cylindrical portion 22 of the first housing 20, and is inserted into an annular portion formed between the cylindrical portion 24 and the first cylindrical portion 22. The column portion 55 is disposed concentrically with the second cylindrical portion 23 of the first housing 20 and is inserted inward of the second cylindrical portion 23. The first insertion path 51 </ b> A and the second insertion path 51 </ b> B are formed across the cylindrical portion 54 and the columnar portion 55. The first holding part 52A and the second holding part 52B are formed in the cylindrical part 54. On the other hand, the third insertion path 51 </ b> C is formed in the cylindrical portion 55. For this reason, the third holding portion 52 </ b> C is formed in the cylindrical portion 55.

  The 2nd connector 3 has the 1st locking member 61 and the 2nd locking member 62 as a locking member 60 (Drawing 9).

  The first locking member 61 is a member that locks the locked portions 32 of the first and second terminals 30A and 30B. When the force in the pulling direction is applied to the first terminal 30A, the first locking member 61 A locking portion 61a as a protruding portion that contacts the locked portion 32 of the one terminal 30A and a locked portion 32 of the second terminal 30B when a force in the pulling direction is applied to the second terminal 30B. And a locking portion 61b as a protruding portion. The locking portion 61a is a portion that locks the movement in the direction opposite to the insertion direction of the first terminal 30A into the first insertion path 51A (that is, the pulling direction of the first terminal 30A). The locking portion 61b is a portion that locks the movement of the second terminal 30B in the direction opposite to the insertion direction of the second terminal 30B into the second insertion path 51B (that is, the pulling direction of the second terminal 30B). The cylindrical portion 55 of the second housing 50 has a first fitting groove 53A (FIG. 7) as a fitting groove 53 into which the first locking member 61 is inserted and fitted. 53 A of 1st fitting grooves have the communication part 53a connected to the insertion port side rather than the to-be-latched part 32 of the 1st terminal 30A in the 1st insertion path 51A. The locking portion 61a of the first locking member 61 is inserted closer to the insertion port than the locked portion 32 of the first terminal 30A in the first insertion path 51A via the communication portion 53a. Furthermore, the first fitting groove 53A has a communication portion 53b that communicates with the insertion port side of the second insertion path 51B with respect to the locked portion 32 of the second terminal 30B. The locking portion 61b of the first locking member 61 is inserted closer to the insertion port than the locked portion 32 of the second terminal 30B in the second insertion path 51B via the communication portion 53b.

  The second locking member 62 is a member that locks each locked portion 32 of the third terminal 30C, and the third terminal 30C is engaged when a force in the pulling direction is applied to the third terminal 30C. It has the latching | locking part 62a as a protrusion part contact | abutted to the stop part 32. FIG. The locking part 62a is a part that locks the movement of the third terminal 30C in the direction opposite to the direction in which the third terminal 30C is inserted into the third insertion path 51C (that is, the pulling direction of the third terminal 30C). The cylindrical portion 55 of the second housing 50 has a second fitting groove 53B (FIG. 5) as the fitting groove 53 into which the second locking member 62 is inserted and fitted. The second fitting groove 53B has a communication portion 53c that communicates with the insertion port side with respect to the locked portion 32 of the third terminal 30C in the third insertion path 51C. The locking portion 62a of the second locking member 62 is inserted closer to the insertion port than the locked portion 32 of the third terminal 30C in the third insertion path 51C via the communication portion 53c.

  Of the first locking member 61 and the second locking member 62, at least the first locking member 61 on the first connector 2 side is embedded in the first fitting groove 53 </ b> A and protrudes from the outer peripheral surface of the cylindrical portion 55. Mold so that it does not. If the first locking member 61 protrudes from the outer peripheral surface of the cylindrical portion 55, the protruding portion may be caught during the fitting with the first connector 2 and the fitting workability may be reduced. is there. For this reason, it is desirable that the exposed portion of the first locking member 61 fitted in the first fitting groove 53 </ b> A is formed in an arc shape having a radius of curvature equivalent to the outer peripheral surface of the cylindrical portion 55, for example.

  In the second connector 3, the electric wires 40A, 40B, and 40C are respectively crimped to the first to third terminals 30A, 30B, and 30C, and the first to third terminals 30A, 30B, and 30C are connected to the second housing 50. Are inserted into the first to third insertion paths 51A, 51B and 51C, respectively (FIG. 9). In the second connector 3, the first locking member 61 is fitted into the first fitting groove 53A, and the second locking member 62 is fitted into the second fitting groove 53B (FIGS. 10 and 11). ).

  Here, in this 2nd connector 3, the assembly is accommodated in the cover member 70 shown in FIG. The cover member 70 includes a cylindrical cover main body 71 having both ends opened and the second housing 50 concentrically disposed inward, and a lid portion 72 that closes the opening on the electric wire 40 side and locks the second housing 50. Have.

  In the illustrated cover member 70, an elastic hinge portion 73 is provided between the cover main body 71 and the lid portion 72. The lid part 72 can open and close the opening of the cover main body 71 on the side of the electric wire 40 through the hinge part 73. The cover main body 71, the lid part 72, and the hinge part 73 are integrally formed of an insulating material such as synthetic resin. The cover member 70 may be configured with the cover main body 71 and the lid portion 72 as separate members.

  Further, in the illustrated cover member 70, a lock mechanism 74 that fixes the lid portion 72 that closes the opening to the cover body 71 is provided. The lock mechanism 74 includes a first engagement portion 74 a provided in the cover main body 71 and a second engagement portion 74 b provided in the lid portion 72. For example, the first engaging portion 74 a is formed as a claw portion protruding from the outer peripheral surface of the cover main body 71. On the other hand, the second engagement portion 74b has a hole or a groove that is caught by the first engagement portion 74a (claw portion) when locked. The second engagement portion 74b has strength so that the engagement state with the first engagement portion 74a is released (that is, the first engagement portion 74a can be extracted from the hole or groove). While also providing flexibility.

  The cover body 71 includes an annular space 75 (FIG. 13) in which the fitting portion 21 of the first housing 20 is inserted between the inner peripheral surface and the outer peripheral surface of the second housing 50, and the electric wires 40 (40 </ b> A, 40B, 40C) and an electric wire insertion portion 76 (FIG. 14) for drawing outward. The electric wire insertion portion 76 is formed by cutting out the end portion of the cover main body 71 on the electric wire 40 side. The notch is formed as an electric wire insertion portion 76 by closing the opening on the electric wire 40 side with the lid portion 72. The electric wire 40 is pulled out from the electric wire insertion portion 76 in the vertical direction with respect to the axial direction described above. In the second connector 3, since such a wire insertion portion 76 is provided in the second housing 50, it is possible to suppress the occurrence of the biting of the wire 40 when the second connector 3 is assembled.

  As described above, in this connector 1, the first housing 20 of the first connector 2 itself has a function of holding a plurality of cylindrical terminals 10 (first to third cylindrical terminals 10A, 10B, 10C). In addition, it has an insulating function between the plurality of cylindrical terminals 10. For this reason, in the 1st connector 2, the two cylindrical insulators between the cylindrical terminals like the past are not required. Therefore, in the first connector 2, the number of parts can be reduced. Furthermore, an insulator as in the prior art may cause a displacement in the circumferential direction of the cylindrical terminal when the cylindrical terminal is assembled to the housing. However, since the plurality of cylindrical terminals 10 are simply cylindrical members, the first connector 2 of the present embodiment can be formed without worrying about the positional deviation in the circumferential direction as in the prior art.

  On the other hand, in the connector 1, two locking members 61 and 62 are required in the second connector 3. In the connector 1, the plurality of cylindrical terminals 10 (first to third cylindrical terminals 10A, 10B, 10C) of the first connector 2 may not be shared, A plurality of terminals 30 (first to third terminals 30A, 30B, 30C) of the two connectors 3 can be shared. For this reason, in the connector 1, the number of terminal types can be reduced as compared with the conventional case, and as a result, the number of components and the types of components can be reduced.

  Here, in the second connector 3, as shown in FIG. 15, the locking portion 61a of the first locking member 61 is closer to the insertion port than the locked portion 32 of the first terminal 30A in the first insertion path 51A. And it arrange | positions in the vicinity of the to-be-latched part 32. For this reason, even if a force in the pulling direction is applied to the first terminal 30A, the locked portion 32 is locked by the locking portion 61a, so that the first terminal 30A is prevented from being pulled out in the pulling direction. Further, as shown in FIG. 15, the locking portion 61b of the first locking member 61 is closer to the insertion port than the locked portion 32 of the second terminal 30B in the second insertion path 51B, and the engaged portion thereof. It is arranged near the stop 32. For this reason, even if the force to the 2nd terminal 30B is added to the extraction direction, since the to-be-latched part 32 is latched by the latching | locking part 61b, the removal to the extraction direction is prevented. Furthermore, as shown in FIG. 16, the locking portion 62a of the second locking member 62 is closer to the insertion port than the locked portion 32 of the third terminal 30C in the third insertion path 51C, and the covered portion. It is arranged near the locking part 32. For this reason, even if the force to the 3rd terminal 30C is added to the extraction direction, since the to-be-latched part 32 is latched by the latching | locking part 62a, the removal to the extraction direction is prevented. That is, in the second connector 3, the first terminal 30 </ b> A and the second terminal 30 </ b> B are prevented from coming off from the second housing 50 by the one locking member 61, and a plurality of terminals 30 (first to third terminals 30 </ b> A) are prevented. , 30B, 30C) from the second housing 50 is prevented by the two locking members 61, 62, thereby suppressing an increase in the number of components and the types of components.

  As described above, the connector 1 according to the present embodiment reduces the number of parts and the kind of parts compared to the conventional one when constructing a configuration in which the fitting direction between the first connector 2 and the second connector 3 is not restricted. Can do. That is, the connector 1 can suppress an increase in the number of parts while ensuring the degree of freedom in the fitting direction between the first connector 2 and the second connector 3. Therefore, this connector 1 can suppress an increase in cost while improving productivity.

DESCRIPTION OF SYMBOLS 1 Connector 2 1st connector 3 2nd connector 10 Cylindrical terminal 10A 1st cylindrical terminal 10B 2nd cylindrical terminal 10C 3rd cylindrical terminal 20 1st housing 21 Fitting part 22 1st cylindrical part 23 2nd cylindrical part 24 cylindrical portion 30 terminal 30A first terminal 30B second terminal 30C third terminal 31a contact portion 31b wire connecting portion 31 terminal body 32 locked portion 33 guided portion 40, 40A, 40B, 40C electric wire 50 second housing 51a guide Groove 51 Insertion path 51A First insertion path 51B Second insertion path 51C Third insertion path 52 Holding part 52A First holding part 52B Second holding part 52C Third holding part 53 Fitting groove 53A First fitting groove 53B Second Fitting groove 54 Cylindrical portion 55 Column portion 60 Locking member 61 First locking member 62 Second locking member 61a, 61b, 62a Locking portion 7 0 Cover member 71 Cover body 72 Cover part 75 Space part 76 Wire insertion part

Claims (2)

A plurality of cylindrical terminals formed in a cylindrical shape and concentrically, and an insulating member, and a fitting portion with a mating partner is formed in a cylindrical shape, and a plurality of the cylindrical terminals are formed in the fitting portion. A first connector having a first housing accommodated with a gap in the radial direction and / or axial direction of the cylindrical terminal,
The plurality of cylindrical terminals each having a contact portion that is in electrical contact with the cylindrical terminal and an electric wire connection portion that is electrically connected to the electric wire are formed of the same shape terminal and insulating member. A cylindrical or / and cylindrical second housing that is accommodated along the axial direction inside the cylindrical fitting portion of the first housing, and the terminal. A second connector having at least one locking member for locking to the second housing;
With
The second housing is an insertion path for each of a plurality of the terminals into which the terminal is inserted on the first connector side along the axial direction, and an end of the insertion path on the first connector side, A plurality of holding portions for holding the terminals and the locking members for locking the locked portions of the terminals are inserted and fitted, and the fitting communicates with the insertion path of the terminals. A connector having a groove. The first connector has first to third cylindrical terminals as the cylindrical terminals,
The second connector includes first to third terminals as the terminals, and a first locking member as the locking member for locking the locked portions of the first and second terminals. And a second locking member as the locking member for locking the locked portion of the third terminal,
The first housing is disposed concentrically with the first cylindrical terminal, and a column portion that holds the first cylindrical terminal in a state where the outer peripheral surface of the first cylindrical terminal is exposed; A first cylindrical portion as the fitting portion that holds the second cylindrical terminal in a state where the cylindrical portions are arranged concentrically and the inner peripheral surface of the second cylindrical terminal is exposed, and the first cylindrical portion As the fitting portion that is arranged concentrically with the third cylindrical terminal on the second connector side, and holds the third cylindrical terminal in a state where the inner peripheral surface of the third cylindrical terminal is exposed. A second cylindrical portion of
The second housing is disposed concentrically with the first to third insertion paths as the insertion paths for each of the first to third terminals, and the columnar portion and the first cylindrical portion of the first housing. A cylindrical portion inserted into an annular portion between the column portion and the first cylindrical portion, and a concentric arrangement with the second cylindrical portion of the first housing, and inward of the second cylindrical portion. A cylindrical portion to be inserted,
The cylindrical portion of the second housing holds the first terminal in a state where the contact portion of the first terminal with the outer peripheral surface of the first cylindrical terminal is exposed radially inward. As the holding part for holding the second terminal in a state where the contact part between the first holding part as the second terminal and the inner peripheral surface of the second cylindrical terminal in the second terminal is exposed to the outside in the radial direction. A second holding part,
The cylindrical portion of the second housing is inserted and fitted with a first fitting groove as the fitting groove into which the first locking member is inserted and fitted, and the second locking member. The third terminal in a state where the contact portion between the second fitting groove as the fitting groove and the inner peripheral surface of the third cylindrical terminal in the third terminal is exposed to the outside in the radial direction. A third holding part as the holding part to hold,
The connector according to claim 1, wherein the first locking member is embedded in the first fitting groove.

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