JP7077353B2 - Connector device - Google Patents

Description

The present invention relates to a connector device.

The connector device located between the power supply and the luminaire is used inside the tunnel. Regarding this connector device, it is also conceivable to supply electric power from a power source to a lighting device in a state where the first core wire of one connector and the second core wire of the other connector are not in contact with each other. For example, the connector device includes a first connector having a first coil and a second connector having a second coil, and the first coil and the second coil are in non-contact state in the axial direction. Some supply power from a power source to an electronic device. (See, for example, Patent Document 1).

Jikkenhei 6-444301 Gazette

In a conventional connector device, in order to supply electric power from a power source to an electronic device in a non-contact state between the first coil and the second coil, the first coil and the second coil are connected in an orthogonal direction orthogonal to the axial direction. It needs to be positioned accurately. Therefore, in the connector device, one of the first connector and the second connector is provided with a fitting convex portion, and the other connector is provided with a fitting concave portion to be fitted to the fitting convex portion, whereby the first connector is provided in the orthogonal direction. It is possible to accurately position the second coil with respect to one coil. However, when the conventional connector device is applied to a lighting device installed inside a tunnel, the connection work for fitting the fitting convex portion into the fitting recess is performed inside the tunnel. Then, during the connection work, it is necessary to expose the fitting recess. When the fitting recess is exposed, the fitting recess is exposed to the outside air inside the tunnel, and foreign matter may enter the inside of the fitting recess. Therefore, there is a demand for a connector device capable of discharging foreign matter inside the fitting recess and accurately positioning the first coil and the second coil in the orthogonal direction.

The present invention has been made in view of the above circumstances, and the first coil and the second coil are suitable for supplying power in a non-contact state while being able to discharge foreign matter inside the recess to the outside of the housing. It is an object of the present invention to provide a connector device capable of appropriately positioning a coil.

In order to solve the above problems, the connector device according to the present invention has a first coil formed by winding around an axis and a first space portion in which the first core wire of the first coil is closed. The first connector having the first housing to be accommodated in, the second coil formed by winding around the axis, and the second core wire of the second coil are accommodated in the closed second space portion. A second connector having a second housing, a fitting recess recessed from the axial end of any one of the first housing and the second housing, and a fitting recess that can be fitted into the fitting recess. The fitting convex portion that protrudes along the axial direction from the axial end portion of the first housing and the other housing of the second housing, and the fitting convex portion that protrudes into the fitting concave portion. In a state where the portions are fitted, the first housing and the second housing are restricted from moving relative to the axial direction, and the second housing is detachably locked to the first housing. The recess-side housing provided with the locking mechanism for electrically connecting the first coil and the second coil is provided with the fitting recess is provided in a portion different from the space portion. The first connector has a discharge path that communicates from the fitting recess to the outside of the recess-side housing, the first connector is connected to a branch cable that branches from the branch of the trunk cable connected to the power supply, and the second connector is The first connector and the second connector are connected to a lighting device inside a tunnel, and in the connected state, the first core wire of the first coil and the second core wire of the second coil are in a non-contact state. It is characterized in that an induced current flows through the second core wire and power is supplied to the lighting device by electromagnetic induction corresponding to a change in a magnetic field generated by the current flowing from the power source to the first core wire. do.

Further, in the connector device, in a cross-sectional view including the axis of the first coil and the axis of the second coil, the discharge path is from the inlet communicating with the fitting recess to the outside of the recess side housing. It is preferable that the width increases toward the communicating exit.

Further, in the connector device, the convex portion side housing having the fitting convex portion has a first magnetic body, and a part of the first magnetic body is formed in a columnar shape to form the convex portion side housing. The fitting convex portion is formed by projecting from one end in the axial direction, and one of the first coil and the second coil is formed on the peripheral surface of a part of the first magnetic material. A coil is provided, and the concave-side housing has a second magnetic material, and a part of the second magnetic material is formed in a cylindrical shape and is recessed from the other end portion of the concave-side housing in the axial direction. It is preferable that the fitting recess is formed by the above method, and the first coil and the other coil of the second coil are provided on the outer peripheral surface of a part of the second magnetic material.

Further, in the connector device, the discharge path is formed by at least two facing surfaces facing each other in the axial direction, and of the two facing surfaces, the side of the two facing surfaces on the insertion direction side of the fitting protrusion with respect to the fitting recess. It is preferable that the facing surface is an inclined surface, and the inclined surface is inclined with respect to the outside in the radial direction toward the insertion direction.

Further, in the connector device, it is preferable that the concave portion side housing is arranged on the lower side in the vertical direction of the convex portion side housing having the fitting convex portion in the connected state.

Since the connector device according to the present embodiment has the above configuration, foreign matter inside the recess can be discharged to the outside of the housing on the recess side, and the first coil and the second coil suitable for power supply in a non-contact state can be discharged. The coil can be properly positioned.

FIG. 1 is a circuit diagram including a connector device according to the present embodiment. FIG. 2 is a perspective view of a connector device when the first connector and the second connector are in an electrically connected state. FIG. 3 is an exploded perspective view of the connector device. FIG. 4 is a vertical sectional view of the connector device in a connected state. FIG. 5 is a side view showing one end of the second connector. FIG. 6 is a vertical cross-sectional view in a state where the first connector and the second connector are separated from each other in the axial direction. FIG. 7 is an exploded perspective view of one end of the second connector.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

FIG. 1 is a circuit diagram including a connector device 100 according to the present embodiment. FIG. 2 is a perspective view of the connector device 100 when the first connector 1 and the second connector 2 are in an electrically connected state. FIG. 3 is an exploded perspective view of the connector device 100. FIG. 4 is a vertical sectional view of the connector device 100 in a connected state. FIG. 5 is an enlarged side view of a part of the second connector 2. FIG. 6 is an enlarged cross-sectional view of a part of the connector device 100 in a state in which the first connector 1 and the second connector 2 are separated from each other in the axial direction X. FIG. 7 is an exploded perspective view of a part of the second connector 2. The axis direction X in each figure is a direction along the axis XL of the first connector 1 and the axis XL of the second connector 2. Further, the circumferential direction R in each figure is a direction around the axis of the axial direction X. Further, the orthogonal direction Y in each figure is a direction orthogonal to the axial direction X. Further, in FIG. 6, X1 is an insertion direction in which the fitting convex portion 15a is inserted into the fitting concave portion 25a, and X2 is a direction opposite to the insertion direction X1.

[Embodiment]
The connector device 100 according to the present embodiment shown in FIGS. 1, 2, 3 and 4 is used inside a tunnel and is arranged in the middle of a connection line for electrically connecting a power source P and a lighting device L. It is a thing. The power source P is, for example, an AC power source. The lighting device L is an electric lamp or the like installed inside the tunnel and illuminating the inside of the tunnel with light. A trunk cable M is provided on the power supply P. The trunk cable M is provided with a plurality of branch portions BP, and each branch portion BP is provided with a branch cable B electrically connected to the trunk cable M. A connector device 100 is provided at the terminal of the branch cable B. The connector device 100 includes a first connector 1, a second connector 2, a cover 3, and a locking mechanism 4.

The first connector 1 has a first circuit portion 11, a first coil 12, a first housing 13, and a first magnetic body 15, and is branched from a branch portion BP of a trunk cable M connected to a power supply P. Connected to cable B.

The first circuit unit 11 is electrically connected to the branch cable B, and has an insulating rectangular flat plate first substrate 11a and various first electronic components such as an electric resistance and a capacitor mounted on the first substrate 11a. It has 11b and is rectified so that the current from the power source P becomes a current having a desired waveform.

The first coil 12 is formed by winding a conductive first core wire 12a around an axis. More specifically, in the first coil 12 of the present embodiment, the first core wire 12a is spirally wound around the axis around the peripheral surface of the fitting convex portion 15a formed in the columnar shape of the first magnetic body 15. It is formed by being turned. Further, although not shown, the first coil 12 has an insulating covering portion that covers the peripheral surface of the first core wire 12a. The first coil 12 is electrically connected to the first circuit unit 11 via the first electric wire 1w. In other words, the first electric wire 1w electrically connects one end of the first coil 12 and the connection portion of the first circuit portion 11.

The first housing 13 has a first housing main body 13a, a first support portion 13c, a first proximity side lid portion 13e, and a first separation side lid portion 13f. The first housing main body 13a has first insertion openings 13b located at both ends in the axial direction X, and is formed in a cylindrical shape having a first space portion 13s inside by an insulating synthetic resin. The first insertion opening 13b has a first proximity opening 13b1 that is close to the second coil 22 in the axial direction X, and a first separation opening 13b2 that is separated from the second coil 22 in the axial direction X. The first proximity opening 13b1 of the first housing 13 is provided with a first proximity opening protrusion 13b11 that projects inward in the radial direction (see FIG. 5). The first coil 12 and the first circuit section 11 described above are arranged in the first space section 13s.

The first support portion 13c is arranged in the first space portion 13s and supports the first circuit portion 11. The first support portion 13c is formed on a circular flat plate by an insulating synthetic resin, and is in contact with the first flange portion 15b of the first magnetic body 15, which will be described later, in a state of facing the first flange portion 15b in the axial direction X. Further, the first space portion 13s is filled with an insulating first filler 13d that covers the entire first coil 12, the entire first circuit portion 11, and the entire first support portion 13c. Further, the first support portion 13c is formed with a first support portion through hole 13c1 that penetrates the first electric wire 1w that electrically connects the first coil 12 and the first circuit portion 11.

The first proximity side lid portion 13e closes the first proximity opening portion 13b1. The first proximity side lid portion 13e is formed of an insulating synthetic resin and has a first proximity cylindrical portion 13e1 and a first proximity disk-shaped portion 13e2. The first proximity cylindrical portion 13e1 is formed in a cylindrical shape extending in the axial direction X. Further, a first proximity projecting portion 13e11 projecting outward in the radial direction is provided at an end portion of the first proximity cylindrical portion 13e1 on the second housing body 23a side in the axial direction X. In the first housing, the operator inserts the first proximity side lid portion 13e from the first separation opening 13b2 into the first space portion 13s, and then inserts the first proximity side lid portion 13e with respect to the first housing body 13a. Is moved closer to the second coil 22 in the axial direction X. Then, the operator attaches the first proximity side lid portion 13e to the first housing main body 13a by bringing the first proximity opening protrusion 13b11 into contact with the first proximity protrusion 13e11. The first proximity disk-shaped portion 13e2 is arranged at the end of the first proximity cylindrical portion 13e1 close to the second coil 22 in the axial direction X, and is formed in a disk shape. Further, in the first proximity disk-shaped portion 13e2, a first disk-shaped portion through hole 13e3 that penetrates the first proximity disk-shaped portion 13e2 is formed in the axial direction X. The cylindrical fitting convex portion 15a of the first magnetic body 15 is inserted into the first disk-shaped portion through hole 13e3.

The cover groove portion 19 for rotatably supporting the cover 3 in the circumferential direction R is formed in the first proximity side lid portion 13e as described above. More specifically, a cover 3 groove extending in the circumferential direction R is formed on the outer peripheral surface of the first proximity cylindrical portion 13e1 of the first proximity side lid portion 13e.

The cover groove portion 19 is formed, for example, on the outer peripheral surface of the first housing 13, and is recessed inward in the radial direction from the outer peripheral surface of the first housing 13, the width of the circumferential direction R is constant, and the circumferential direction R Continue to. As shown in FIG. 5, the cover groove portion 19 includes a pair of first groove portion-constituting walls 19a and a second groove-constituting wall 19b facing each other in the axial direction X, and a first groove-constituting wall 19a and a second groove portion in the axial direction X. It is formed by a groove bottom constituent wall 19c connecting the constituent wall 19b. The first groove portion forming wall 19a is arranged on the side close to the second housing main body 23a in the axial direction X. The second groove portion forming wall 19b is arranged on the side close to the first housing main body 13a in the axial direction X.

The first separation side lid portion 13f closes the first separation opening portion 13b2. The first separation side lid portion 13f is formed in a disk shape by an insulating synthetic resin. In the first separation side lid portion 13f, a first separation side through hole 13f1 that penetrates the first separation side lid portion 13f is formed in the axial direction X. A branch cable B is inserted through the first separation side through hole 13f1.

The first housing 13 of the present embodiment includes a first housing body 13a, a first proximity side lid portion 13e that closes the first proximity opening portion 13b1, and a first separation side lid portion that closes the first separation opening portion 13b2. It has 13f, and the first coil 12 is housed in the first space portion 13s inside the first housing main body 13a. That is, the first housing 13 accommodates the first core wire 12a of the first coil 12 in a closed state. In other words, the first coil 12 is prevented from being exposed to the outside of the first housing 13 by the first housing 13.

The first magnetic body 15 is located inside the fitting convex portion 15a formed in a columnar shape and the first proximity side lid portion 13e, and protrudes outward in the radial direction from the peripheral surface of the fitting convex portion 15a. It has one flange portion 15b. That is, a part of the first magnetic body 15 is formed in a columnar shape and protrudes from one end of the first housing 13 which is the convex side housing in the axial direction X to form the fitting convex portion 15a. Further, the first coil 12 is provided on the peripheral surface of a part of the first magnetic body 15 (more specifically, the fitting convex portion 15a). The tip of the fitting convex portion 15a protrudes from the end surface of the first proximity disk-shaped portion 13e2 of the first proximity side lid portion 13e toward the second housing body 23a in the axial direction X in the connected state. The first magnetic material 15 is formed of a magnetic material such as ferrite, and suppresses a decrease in the efficiency of the induced current flowing through the second core wire 22a, which will be described later, with respect to the current flowing through the first core wire 12a.

The second connector 2 has a second circuit unit 21, a second coil 22, a second housing 23, and a second magnetic body 25, and is connected to the lighting device L inside the tunnel via the connection cable C.
The second circuit unit 21 is electrically connected to the connection cable C, and has an insulating rectangular flat plate second substrate 21a and various second electronic components such as an electric resistance and a capacitor mounted on the second substrate 21a. It has 21b and is rectified so that the induced current flowing through the second coil 22 becomes a current having a desired waveform.

The second circuit unit 21 is electrically connected to the connection cable C, and has an insulating rectangular flat plate second substrate 21a and various second electronic components such as an electric resistance and a capacitor mounted on the second substrate 21a. It has 21b and is rectified so that the induced current becomes a current having a desired waveform.

The second coil 22 is formed by winding a conductive second core wire 22a around an axis. More specifically, the second coil 22 is formed by spirally winding the second core wire 22a around the axis around the outer peripheral surface of the fitting recess 25a formed in the shape of a cylinder of the second magnetic body 25. It is what is formed. Further, although not shown, the second coil 22 has an insulating covering portion that covers the peripheral surface of the second core wire 22a. The second coil 22 is electrically connected to the second circuit unit 21 via the second electric wire 2w. In other words, the second electric wire 2w electrically connects one end of the second coil 22 and the connection portion of the second circuit portion 21.

The second housing 23 has a second housing main body 23a, a second support portion 23c, a second proximity side lid portion 23e, and a second separation side lid portion 23f. The second housing main body 23a has second insertion openings 23b located at both ends in the axial direction X, and is formed in a cylindrical shape having a second space portion 23s inside by an insulating synthetic resin. The second insertion opening 23b has a second proximity opening 23b1 that is close to the first coil 12 in the axial direction X, and a second separation opening 23b2 that is separated from the first coil 12 in the axial direction X. The second proximity opening 23b1 is provided with a second proximity opening protrusion 23b11 that projects inward in the radial direction (see FIG. 5). The second coil 22 and the second circuit section 21 described above are arranged in the second space section 23s. Further, the second housing main body 23a is formed with a discharge passage opening 23ak that constitutes an outlet OUT of each discharge passage D, which will be described later (see FIGS. 3 and 7). The discharge passage opening 23ak is a first discharge passage opening 23ak1 provided in the first discharge passage D1, a second discharge passage opening 23ak2 provided in the second discharge passage D2, and a second discharge passage opening 23ak provided in the third discharge passage D3. 3 The discharge passage opening 23ak3 and the fourth discharge passage opening 23ak4 provided in the fourth discharge passage D4 are included.

The second support portion 23c is a discharge path component that constitutes the discharge path D located inside itself, and has a first component 23c1 and a second component 23c2. The second support portion 23c is arranged inside the second space portion 23s. Therefore, the discharge path D is formed in a portion different from the second space portion 23s inside the second housing 23. The first component 23c1 is formed in a circular flat plate shape by an insulating synthetic resin and supports the second circuit portion 21. The second component 23c2 is formed on a circular flat plate by an insulating synthetic resin, and is in contact with the second flange portion 25b of the second magnetic body 25, which will be described later, in the axial direction X in a state of facing the second flange portion 25b. The first component 23c1 has a first central opening 23c1o located at the center in the radial direction and a first end notch 23c1p located at the end in the radial direction. The first central opening 23c1o communicates with the second central opening 23c2o. The first end notch 23c1p functions as a through hole through which the second electric wire 2w is inserted. The second component 23c2 has a second central opening 23c2o located at the center in the radial direction and a second end notch 23c2p located at the end in the radial direction. The second central opening 23c2o constitutes the inlet IN of the discharge path D. The second end notch 23c2p functions as a through hole through which the second electric wire 2w is inserted. The inlet INs are the first inlet IN1 provided in the first discharge passage D1, the second inlet IN2 provided in the second discharge passage D2, the third inlet IN3 provided in the third discharge passage D3, and the first. 4 Includes a fourth inlet IN4 provided in the discharge path D4. In the second support portion 23c of the present embodiment, the thickness of the first component 23c1 in the axial direction X is thicker than the thickness of the second component 23c2 in the axial direction X. Further, the first component 23c1 has four engaging holes 23c1g, and the second component 23c2 has an engaging claw (not shown) that engages with the engaging hole 23c1g.

As shown in FIGS. 6 and 7, the second housing 23 has an inlet IN communicating with the fitting recess 25a of the second magnetic body 26, which will be described later, and an outlet communicating with the outside of the second housing 23, which is the recess side housing. It has a discharge path D with an OUT. The width of the discharge path D of the present embodiment expands from the inlet IN to the outlet OUT. Further, the second housing 23 has a plurality of discharge paths D. The second housing 23 of the present embodiment has four discharge paths D. More specifically, the second housing 23 has a first discharge passage 23R1, a second discharge passage 23R2, a third discharge passage 23R3, and a fourth discharge passage 23R4. As shown in FIG. 7, these first discharge passages 23R1, second discharge passages 23R2, third discharge passages 23R3, and fourth discharge passages 23R4 are arranged at equal intervals in the circumferential direction R.

The discharge path D is formed between two facing surfaces 23f2 and 23f3 facing each other at least in the axial direction X. That is, the discharge path D is composed of two facing surfaces 23f2 and 23f3 facing each other at least in the axial direction X. Of the two facing surfaces 23f2 and 23f3, the facing surface 23f3 on the insertion direction X1 side of the fitting convex portion 15a with respect to the fitting recess 25a is an inclined surface, while the facing surface 23f2 on the opposite direction X2 side is in the axial direction X. Orthogonal planes. The facing surface 23f3, which is an inclined surface, is inclined with respect to the outside in the radial direction toward the insertion direction X1. The facing surface 23f3 is formed on the first component 23c1, and the facing surface 23f2 is formed on the second component 23c2.

The second space portion 23s is filled with an insulating second filler 23d that covers the entire second coil 22, the entire second circuit portion 21, and the entire second support portion 23c. Further, the second support portion 23c is formed with a second support portion through hole 23c11 that penetrates the second electric wire 2w that electrically connects the second coil 22 and the second circuit portion 21.

The second proximity side lid portion 23e closes the second proximity opening portion 23b1. The second proximity side lid portion 23e is formed of an insulating synthetic resin and has a second proximity cylindrical portion 23e1 and a second proximity disk-shaped portion 23e2. The second proximity cylindrical portion 23e1 is formed in a cylindrical shape extending in the axial direction X. Further, a second proximity projecting portion 23e11 projecting inward in the radial direction is provided at an end portion of the second proximity cylindrical portion 23e1 on the side of the first housing body 13a in the axial direction X. In the second housing, the operator inserts the second proximity side lid portion 23e from the second separation opening 23b2 into the second space portion 23s, and then inserts the second proximity side lid portion 23e with respect to the second housing body 23a. Is moved closer to the first coil 12 in the axial direction X. Then, the operator attaches the second proximity side lid portion 23e to the second housing main body 23a by bringing the second proximity opening protrusion 23b11 into contact with the second proximity protrusion 23e11. The second proximity disk-shaped portion 23e2 is arranged at the end of the second proximity cylindrical portion 23e1 close to the first coil 12 in the axial direction X, and is formed in a disk shape. Further, in the second proximity disk-shaped portion 23e2, a second disk-shaped portion through hole 23e3 that penetrates the second proximity disk-shaped portion 23e2 is formed in the axial direction X. The fitting convex portion 15a of the first magnetic body 15 is inserted into the second disk-shaped portion through hole 23e3.

The second separation side lid portion 23f closes the second separation opening 23b2. The second separation side lid portion 23f is formed in a disk shape by an insulating synthetic resin. In the second separation side lid portion 23f, a second separation side through hole 23f1 that penetrates the second separation side lid portion 23f is formed in the axial direction X. The connection cable C is inserted through the second separation side through hole 23f1.

The second housing 23 of the present embodiment includes a second housing main body 23a, a second proximity side lid portion 23e that closes the second proximity opening portion 23b1, and a second separation side lid portion that closes the second separation opening portion 23b2. It has 23f, and the second coil 22 is housed in the second space portion 23s inside the second housing main body 23a. That is, the second housing 23 accommodates the second core wire 22a of the second coil 22 in a closed state. In other words, the second coil 22 is prevented from being exposed to the outside of the second housing 23 by the second housing 23.

The second magnetic body 25 is located inside the fitting recess 25a formed in a cylindrical shape and the second proximity side lid portion 23e, and has a second flange protruding outward in the radial direction from the outer peripheral surface of the fitting recess 25a. It has a portion 25b. That is, a part of the second magnetic body 25 is formed in a cylindrical shape and is recessed from the other end portion of the second housing 23, which is the recess side housing, in the axial direction X to form the fitting recess 25a. Further, a second coil 22 is provided on the outer peripheral surface of a part of the second magnetic body 25 (more specifically, the fitting recess 25a). The fitting recess 25a is recessed from the end surface of the second proximity disk-shaped portion 23e2 of the second proximity side lid portion 23e toward the second housing body 23a in the axial direction X. The second magnetic material 25 is formed of a magnetic material such as ferrite, and suppresses a decrease in the efficiency of the induced current flowing through the second core wire 22a with respect to the current flowing through the first core wire 12a.

The cover 3 is formed of an insulating synthetic resin into a cylindrical shape as shown in FIG.
The cover 3 of the present embodiment has the first housing 13 as the convex side housing, and is rotatably supported in the circumferential direction R with respect to the first housing 13. More specifically, as shown in FIG. 5, the cover groove portion 19 described above is formed on the outer peripheral surface of the first proximity side lid portion 13e in the first housing 13, and the inner peripheral surface of the cover 3 is formed. A cover protrusion 32 that fits into the cover groove 19 is formed (see FIG. 4), and by fitting the cover protrusion 32 to the cover groove 19, the cover 3 is attached to the first housing 13 that is the convex side housing. It is rotatably supported with respect to the circumferential direction R.

The cover protrusion 32 is formed, for example, at the end of the cover 3 on the side close to the first housing body 13a in the axial direction X, and protrudes inward in the radial direction from the inner peripheral surface of the cover 3 in the circumferential direction R. The width is constant and continuous in the circumferential direction R. The cover projecting portion 32 includes a pair of first projecting side component wall 32a and a second projecting side component wall 32b facing each other in the axial direction X, and a first projecting side component wall 32a and a second projecting side in the axial direction X. It is formed by a protruding top constituent wall 32c that connects the portion constituent wall 32b. The first projecting side component wall 32a is arranged on the side of the cover 3 close to the second housing main body 23a in the axial direction X. The second projecting side component wall 32b is arranged on the side of the cover 3 close to the first housing main body 13a in the axial direction X.

As shown in FIG. 3, the locking mechanism 4 has a convex portion 41 and a concave portion 42 into which the convex portion 41 can be inserted. A plurality of convex portions 41 are provided in the circumferential direction R of the inner peripheral surface of the cover 3. Each convex portion 41 projects inward in the radial direction. For example, four convex portions 41 of the present embodiment are arranged on the inner peripheral surface of the cover 3 at equal intervals in the circumferential direction R. That is, the cover 3 of the present embodiment is provided with a plurality of convex portions 41 in the circumferential direction R. The plurality of convex portions 41 have the same shape and the same size. Further, the plurality of convex portions 41 are arranged side by side in the circumferential direction R with respect to the inner peripheral surface of the cover 3.

A plurality of recesses 42 are provided in the circumferential direction R of the outer peripheral surface of the second housing 23. Each recess 42 is recessed inward in the radial direction. For example, four recesses 42 of the present embodiment are arranged at equal intervals on the outer peripheral surface of the second housing 23 in the circumferential direction R. That is, the second housing 23 of the present embodiment is provided with a plurality of recesses 42 in the circumferential direction R. The plurality of recesses 42 have the same shape and the same size. Further, the plurality of recesses 42 are arranged side by side in the circumferential direction R with respect to the outer peripheral surface of the second housing 23.

As shown in FIG. 6, the locking mechanism 4 further includes a guide portion 43 that guides the convex portion 41 to the concave portion 42. The guide portion 43 has a first portion 43a and a second portion 43b, and is formed on the outer peripheral surface of the second housing 23 (more specifically, on the outer peripheral surface of the second proximity cylindrical portion 23e1). It is formed). Such a locking mechanism 4 restricts the first housing 13 and the second housing 23 from moving relative to the axial direction X, and the second housing 23 is detachably locked to the first housing 13. By doing so, the first coil 12 and the second coil 22 are electrically connected.

The first portion 43a has a first starting point 43a1 and a first ending point 43a2, and is formed extending from the first starting point 43a1 to the first ending point 43a2 in the axial direction X. The first starting point 43a1 is located at the end of the second proximity cylindrical portion 23e1 on the side of the first housing main body 13a in the axial direction X. The first starting point 43a1 is arranged at a position close to the end portion of the second proximity cylindrical portion 23e1 on the side of the second housing main body 23a in the axial direction X.

The second portion 43b has a second starting point 43b1 and a second ending point 43b2, and is formed extending from the second starting point 43b1 to the second ending point 43b2 in the circumferential direction R. The second starting point 43b1 is located adjacent to the first end point 43a2 in the second proximity cylindrical portion 23e1 and is located at one end of the circumferential direction R in the second portion 43b. The second end point 43b2 is located at a portion of the second proximity cylindrical portion 23e1 deviating from the first end point 43a2, and is located at the other end portion of the second end point 43b in the circumferential direction R.

The recess 42 is adjacent to the first housing body 13a side in the axial direction X with respect to the second end point 43b2 in the second portion 43b in the axial direction X, and is arranged on the outer peripheral surface of the second proximity cylindrical portion 23e1. Will be done.

Further, the connector device 100 further includes an urging member located between the first housing 13 of the first connector 1 and the cover 3. The urging member is, for example, a wave washer, which is formed to be deformable in the axial direction X by metal. In the state where the urging member is assembled between the first housing 13 and the cover 3, a force is applied so as to narrow the width in the axial direction X and the urging member is deformed. Therefore, the urging member is assembled. In this state, it has an elastic restoring force so that the width becomes wider, and the first housing 13 and the cover 3 are urged so as to be separated from each other in the axial direction X.

In the connector device 100 configured as described above, as described below, a worker assembles the second connector 2 to the first connector 1, and the locking mechanism 4 causes the first coil 12 and the second coil 22 to be together. Is electrically connected.

First, as shown in FIG. 4, the operator fits the cover protrusion 32 into the cover groove 19 in a state where the urging member is assembled to the inner peripheral surface of the cover 3, thereby fitting the cover protrusion 32 into the first housing 13. Assemble the cover 3. Next, the operator sets the first connector 1 so that the first proximity disk-shaped portion 13e2 of the first housing 13 and the second proximity disk-shaped portion 23e2 of the first housing 13 face each other in the axial direction X. The second connector 2 is arranged.

Next, for example, the operator moves the first housing 13 in a direction close to the second housing 23 in the axial direction X, and fits the fitting convex portion 15a into the fitting concave portion 25a.
At this time, it is preferable that the first housing 13 is arranged on the upper side in the vertical direction and the second housing 23 is arranged on the lower side in the vertical direction. Further, at the time of fitting, the foreign matter inside the fitting recess 25a comes into contact with the fitting convex portion 15a, is pushed out from the fitting recess 25a, and enters the inlet IN of the discharge path D. Then, the foreign matter is discharged to the outside of the second housing 23 from the facing surface 23f3, which is an inclined surface, and the outlet OUT of the discharge path D by gravity.

Next, the worker moves the cover 3 with respect to the second housing 23 in the circumferential direction R, so that the convex portion 41 and the concave portion 42 face each other in the axial direction X.

Next, for example, the worker moves the first connector 1 and the cover 3 in a direction close to the second connector 2 in a state where the second connector 2 is fixed by a jig, so that the guide portion 43 can be changed. The convex portion 41 is inserted into the portion 43a.

Next, the worker further moves the first connector 1 and the cover 3 in the axial direction X in a direction close to the second housing main body 23a against the urging force of the urging member, thereby causing the guide portion 43. The convex portion 41 is moved from the first starting point 43a1 of the first portion 43a of the above to the first ending point 43a2.

Finally, the worker moves the convex portion 41 from the second starting point 43b1 of the second portion 43b of the guide portion 43 to the second ending point 43b2 by rotating the first connector 1 and the cover 3 in the circumferential direction R.

Then, due to the elastic restoring force of the urging member, the first connector 1 and the cover 3 move in the direction away from the second housing main body 23a in the axial direction X, the convex portion 41 is inserted into the concave portion 42, and the first Assemble the connector 1 and the cover 3 to the second connector 2.

Then, in the connector device 100, when the first connector 1 and the cover 3 are assembled to the second connector 2, the first coil 12 and the second coil 22 face each other in the axial direction X, and the first coil 12 and the second coil 2 are opposed to each other. The coil 22 is electrically connected. Therefore, when an AC voltage is applied to the first core wire 12a of the first coil 12 via the trunk cable M and the branch cable B by the power supply P, an AC current flows from the power supply P to the first core wire 12a, and the AC current flows from the power supply P to the first core wire 12a. A change in the magnetic field occurs when a current flows through the first core wire 12a. Further, the first coil 12 and the second coil 22 face each other in a non-contact state in the axial direction X, and the second core wire 22a is induced by electromagnetic induction according to the change in the magnetic field generated by the flow of an alternating current through the first core wire 12a. An induced current flows through the lighting device L to supply electric power to the lighting device L.

Further, the worker can remove the first connector 1 and the cover 3 with respect to the second connector 2 by performing the operation opposite to the above operation. More specifically, the worker first causes the convex portion 41 to exit from the concave portion 42 by bringing the first connector 1 and the cover 3 close to the second connector 2 in the axial direction X. After that, the worker fixes the second connector 2, rotates the first connector 1 and the cover 3 in the circumferential direction R, and moves the convex portion 41 from the second end point 43b2 of the second portion 43b to the second starting point 43b1. Let me. After that, the worker fixes the second connector 2, separates the first connector 1 and the cover 3 in the axial direction X, and removes the first connector 1 and the cover 3 from the second connector 2. By removing the first connector 1 and the cover 3 from the second connector 2 in this way, the electrical connection between the power supply P and the lighting device L is released, and for example, the lighting device L is inspected. ..

The connector device 100 according to this embodiment has the following configuration. The connector device 100 can be fitted into the fitting recess 25a recessed from the end of either the first housing 13 or the second housing 23 in the axial direction X, and the fitting recess 25a. The housing 13 and the fitting convex portion 15a projecting from the end portion of the other housing of the second housing 23 along the axial direction X are provided. The recess-side housing provided with the fitting recess 25a has a discharge path D communicating from the fitting recess 25a to the outside of the recess-side housing in a portion different from the second space portion 23s. For these reasons, the connector device 100 according to the present embodiment pushes the foreign matter inside the fitting recess 25a into the discharge path D by the fitting convex portion 15a, and discharges the foreign matter to the outside of the recess side housing through the discharge path D. Can be done. As a result, the connector device 100 according to the present embodiment can properly fit the fitting convex portion 15a to the fitting concave portion 25a. Therefore, the connector device 100 according to the present embodiment can appropriately position the second coil 22 with respect to the first coil 12 in the orthogonal direction Y orthogonal to the axial direction X. As a result, the connector device 100 according to the present embodiment can appropriately supply electric power from the power supply P to the lighting device L via the connector device 100. By the above operation, the connector device 100 according to the present embodiment can discharge the foreign matter inside the fitting recess 25a to the outside of the second housing 23 which is the housing on the recess side, and supplies electric power in a non-contact state. The first coil 12 and the second coil 22 suitable for the above can be appropriately positioned.

The connector device 100 according to this embodiment has the following configuration. In a cross-sectional view including the axis XL of the first coil 12 and the axis XL of the second coil 22, the discharge path D is from the inlet IN communicating with the fitting recess 25a to the outlet OUT communicating with the outside of the recess side housing. The width expands toward. As a result, in the connector device 100 according to the present embodiment, since the discharge path D has a wider width on the outlet OUT side than the inlet IN side, foreign matter pushed out from the inside of the fitting recess 25a to the inlet IN of the discharge path D. Can be prevented from coming into contact with each of the two facing surfaces 23f2 and 23f3 in the discharge path D. By the above action, the connector device 100 according to the present embodiment can prevent foreign matter from being clogged in the middle of the discharge path D.

The connector device 100 according to this embodiment has the following configuration. A part of the first magnetic body 15 constitutes a fitting convex portion 15a, and a part of the second magnetic body 25 constitutes a fitting concave portion 25a. A coil of either the first coil 12 or the second coil 22 is provided on a part of the peripheral surface of the first magnetic body 15, and a second coil is provided on a part of the peripheral surface of the second magnetic body 25. One coil 12 and the other coil of the second coil 22 are provided. Therefore, in the connector device 100 according to the present embodiment, if the fitting convex portion 15a is fitted into the fitting concave portion 25a, a part of the first magnetic body 15 and a part of the second magnetic body 25 are integrated. At the same time, an integrated magnetic material can be arranged inside the first coil 12 and the second coil 22. By the above action, the connector device 100 according to the present embodiment can increase the current flowing through the second core wire 22a by electromagnetic induction, and can improve the power efficiency supplied from the power supply P to the lighting device L.

The connector device 100 according to this embodiment has the following configuration. Of the two facing surfaces 23f2 and 23f3, the facing surface 23f3 on the insertion direction X1 side of the fitting convex portion 15a with respect to the fitting concave portion 25a is an inclined surface. The facing surface 23f3, which is an inclined surface, is inclined with respect to the outside in the radial direction toward the insertion direction X1. Therefore, in the connector device 100 according to the present embodiment, when the fitting convex portion 15a is fitted into the fitting concave portion 25a, the force applied to the foreign matter by coming into contact with the fitting convex portion 15a toward the insertion direction X1 side. A part of is converted into an outward force in the radial direction when the foreign matter comes into contact with the inclined surface. Temporarily, when the connector device 100 in which the orthogonal surface orthogonal to the axial direction X is arranged on the insertion direction X1 side of the two facing surfaces 23f2 and 23f3, the fitting convex portion 15a is fitted into the fitting concave portion 25a. Most of the force applied to the foreign matter on the insertion direction X1 side by contacting the fitting convex portion 15a is used for the foreign matter to come into contact with the orthogonal plane, and the foreign matter may become an outward force in the radial direction. do not have. By the above action, the connector device 100 according to the present embodiment facilitates discharging foreign matter to the outside of the concave housing.

The connector device 100 according to this embodiment has the following configuration. The concave side housing is arranged on the lower side in the vertical direction of the convex side housing in the connected state. Therefore, in the connector device 100 according to the present embodiment, foreign matter such as water and dust is guided to the outside in the radial direction along the inclined surface by gravity. By the above action, the connector device 100 according to the present embodiment facilitates discharging foreign matter to the outside of the concave housing.

In the connector device 100 according to the above-described embodiment, the first housing 13 is the convex side housing and the second housing 23 is the concave side housing. However, in the connector device 100 according to the present embodiment, the first housing 13 may be the concave side housing and the second housing 23 may be the convex side housing.

Further, in the connector device 100 of the above-described embodiment, the cover 3 covers the tip portion of the first housing 13 and covers the tip portion of the second housing 23. However, the present invention is not limited to this, and the cover 3 may extend toward the insertion direction X1 so that the cover 3 covers the outlet OUT of the discharge path D in the connected state.

Further, in the connector device 100 according to the above-described embodiment, the first coil 12 is provided on a part of the peripheral surface of the first magnetic body 15, while the second coil 22 is provided on a part of the peripheral surface of the second magnetic body 25. I explained what to provide. However, the present invention is not limited to this, and the second coil 22 may be provided in a part of the first magnetic body 15, while the first coil 12 may be provided in a part of the second magnetic body 25.

Further, the locking mechanism 4 of the connector device 100 according to the above-described embodiment is provided with a convex portion 41 protruding inward in the radial direction on the inner peripheral surface of the cover 3, and is provided on the outer peripheral surface of the concave side housing in the radial direction. The one provided with the recessed recess 42 has been described. However, the locking mechanism 4 of the connector device 100 according to the present embodiment is not limited to this, and the inner peripheral surface of the cover 3 is provided with a concave portion 42 recessed outward in the radial direction, and the outer peripheral surface of the concave portion side housing is provided with a radial outer surface. A convex portion 41 protruding from the surface may be provided.

Further, in the connector device 100 of the above-described embodiment, the guide portion 43 for guiding the convex portion 41 to the concave portion 42 has a first portion 43a and a second portion 43b. However, the guide portion 43 of the connector device 100 according to the present embodiment may be composed of a first portion 43a extending in the axial direction X. When the guide portion 43 is composed of the first portion 43a, the recess 42 is arranged so as to be adjacent to the first portion 43a in the circumferential direction R.

Further, in the connector device 100 of the above-described embodiment, the first connector 1 is provided with the first magnetic body 15, while the second connector 2 is provided with the second magnetic body 25. However, the connector device 100 of the present embodiment is not limited to this, and the first connector 1 may be provided with the second magnetic body 25, while the second connector 2 may be provided with the first magnetic body 15.

Further, as the connector device 100 of the above-described embodiment, the connector device 100 provided with the first magnetic body 15 and the second magnetic body 25 has been described. However, the present invention is not limited to this, and it is not always necessary to provide the first magnetic body 15 and the second magnetic body 25 in the connector device 100.

Further, in the connector device 100 of the above-described embodiment, the first coil 12 and the second coil 22 face each other in the axial direction X in a state where the first connector 1 and the cover 3 are assembled to the second connector 2. Explained. However, the present invention is not limited to this, and in the connector device 100, the first coil 12 and the second coil 22 may face each other in the radial direction of the axis XL.

1 1st connector 12 1st coil 13 1st housing (convex side housing)
15 1st magnetic body 15a Fitting convex part 2 2nd connector 22 2nd coil 23 2nd housing (concave side housing)
23f2, 23f3 Facing surface 25 Second magnetic body 25a Fitting recess 3 Cover 4 Locking mechanism 41 Convex 42 Recess 100 Connector device B Branch cable BP Branch IN, IN1, IN2, IN3, IN4 Inlet L Lighting device OUT, OUT1 , OUT2, OUT3, OUT4 Outlet P Power supply D, D1, D2, D3, D4 Outlet X Axial direction

Claims (5)

A first coil formed by winding around an axis, and a first connector having a first housing for accommodating the first core wire of the first coil in a closed first space portion, and a first connector.
A second coil formed by winding around the axis, and a second connector having a second housing for accommodating the second core wire of the second coil in the closed second space.
A fitting recess recessed from the axial end of either the first housing or the second housing.
A fitting convex portion that can be fitted into the fitting recess and protrudes along the axial direction from the axial end portion of the first housing and the other housing of the second housing.
In a state where the fitting protrusion is fitted to the fitting recess, the first housing and the second housing are restricted from moving relative to the axial direction, and the second housing is second with respect to the first housing. A locking mechanism that electrically connects the first coil and the second coil by detachably locking the housing.
Equipped with
The recess-side housing provided with the fitting recess has a discharge path communicating from the fitting recess to the outside of the recess-side housing in a portion different from the space portion.
The first connector is connected to a branch cable that branches from the branch of the trunk cable connected to the power supply.
The second connector is connected to the lighting device inside the tunnel.
In the connected state, the first connector and the second connector have the first core wire of the first coil and the second core wire of the second coil facing each other in a non-contact state, and the first one from the power supply. It is characterized in that an induced current flows through the second core wire and power is supplied to the lighting device by electromagnetic induction corresponding to a change in a magnetic field generated by the current flowing through the core wire.
Connector device. In a cross-sectional view including the axis of the first coil and the axis of the second coil, the discharge path has a width from an inlet communicating with the fitting recess toward an outlet communicating with the outside of the recess side housing. Expands,
The connector device according to claim 1. The convex portion side housing having the fitting convex portion has a first magnetic material and has a first magnetic material.
A part of the first magnetic material is formed in a columnar shape and protrudes from one end of the convex side housing in the axial direction to form the fitting convex portion.
A coil of either the first coil or the second coil is provided on the peripheral surface of a part of the first magnetic material.
The concave-side housing has a second magnetic material and has a second magnetic material.
A part of the second magnetic material is formed in a cylindrical shape and is recessed from the other end portion of the recess side housing in the axial direction to form the fitting recess.
A coil of either the first coil or the second coil is provided on the outer peripheral surface of a part of the second magnetic material.
The connector device according to claim 1 or 2. The discharge path is composed of at least two facing surfaces facing each other in the axial direction.
Of the two facing surfaces, the facing surface on the insertion direction side of the fitting convex portion with respect to the fitting concave portion is an inclined surface.
The inclined surface is inclined with respect to the outside in the radial direction toward the insertion direction.
The connector device according to claim 2. The concave-side housing is arranged on the lower side in the vertical direction of the convex-side housing having the fitting convex portion in the connected state.
The connector device according to claim 4.

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