JP6262895B2 - Connector device - Google Patents

Description

  The present invention relates to a connector device, and more particularly to a connector device including a connector fixed to a device and connected to a mating connector.

  Conventionally, an electrical connector device is composed of two connectors, a plug and a receptacle, and by connecting these connectors together, electrical connection is made between cables or between equipment such as electrical equipment and a control device. . As an electrical connector device, a screw type (for example, refer to Patent Document 1) in which cables are electrically connected to each other on the same axis via screws, or a bayonet type for connecting both by inserting and twisting (for example, Patent Document) 2) is known.

  For example, when the electrical connector device is used for connection between tunnel lights arranged on the wall surface of the tunnel, the electrical connector device is a work in a relatively dark place at the time of connection work or maintenance. For this reason, use of the bayonet type connector device shown in Patent Document 2 is desired rather than the screw type shown in Patent Document 1 so that the connectors can be easily connected and disconnected by hand.

JP 2001-52821 A JP 2010-165624 A

  By the way, in the tunnel, condensation is likely to occur due to intrusion of rain and wind, changes in temperature, etc., and as described above, it is necessary to use a connector having a waterproof structure as a connector used for connecting a lighting fixture in the tunnel. .

  However, the connector device of Patent Document 2 is configured by providing an insulator including a contact in a metal shell including a fitting portion in which a bayonet groove is formed, and there is no description regarding waterproofing.

  Therefore, as an electrical connector device used in the tunnel, in addition to being easy to connect, such as the bayonet type in the electrical connector device of Patent Document 2, in addition to being subjected to waterproof treatment on the connection portion, It is desired to manufacture with a smaller number of parts.

  An object of the present invention is to provide a connector device having a waterproof function and capable of improving assemblability with a simple configuration.

  One aspect of the connector device of the present invention has a convex fitting portion, and has a first connector attached to the planar portion, and a concave fitting portion into which the convex fitting portion is inserted and fitted. And a second connector, wherein the first connector has a cylindrical shape that opens at one end, and is inserted into a cylindrical portion that accommodates a plurality of contacts, and an attachment hole in the planar portion. From the back side of the planar portion, a male screw portion into which a mounting nut having an outer diameter larger than the diameter of the mounting hole is screwed, and the cylindrical portion and the male screw portion are continuously disposed. An intermediate portion, and a core made of an insulating material formed integrally with the intermediate portion, and the intermediate portion includes a core flange projecting radially from the outer periphery on the base end side of the cylindrical portion; The displacement of the mounting nut that is disposed in the mounting hole and screwed into the male screw portion is regulated. A restriction ring portion projecting from the tip of the male screw portion to the outer periphery, and a groove portion extending in the circumferential direction adjacent to the restriction ring portion is provided between the core flange and the restriction ring portion. The groove portion has a mounting flange portion made of an elastic material having a waterproof property that is elastically deformed by screwing of the mounting nut to the male screw portion inserted into the mounting hole and comes into contact with the planar portion. Provided, the cylindrical portion adopts a configuration constituting the convex fitting portion.

  ADVANTAGE OF THE INVENTION According to this invention, it has a waterproof function and can aim at the improvement of assembly property with a simple structure.

1 is an external view of a connector device according to an embodiment of the present invention. The side view of the plug of the connector device of one embodiment concerning the present invention The top view of the plug of the connector device of one embodiment concerning the present invention The front view of the plug of the connector device of one embodiment concerning the present invention The rear view of the plug of the connector device of one embodiment concerning the present invention 2 is a cross-sectional view taken along line AA in FIG. The figure which uses for description of the core in the plug of the connector apparatus of one Embodiment which concerns on this invention The figure which uses for description of the attachment nut of the connector apparatus of one Embodiment which concerns on this invention Sectional drawing which shows the use condition of the plug of the connector apparatus of one Embodiment which concerns on this invention

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  A configuration of a connector according to an embodiment of the present invention will be described.

  FIG. 1 is a perspective view of a connector device having a connector according to an embodiment of the present invention.

  A connector device 10 shown in FIG. 1 includes a plug connector (hereinafter referred to as “plug”) 110 and a mounting nut 120 as a first connector 100, and a receptacle connector (hereinafter referred to as “second connector” fitted to the plug 110). 200) called “receptacle”.

  The receptacle 200 is provided with a concave fitting portion (concave fitting portion) 210 into which the convex fitting portion 102 of the plug 110 is inserted and fitted. An insertion protrusion 212 having an outer peripheral surface spaced from the inner peripheral wall of the fitting portion 210 is provided in the fitting portion 210 of the receptacle 200, and the receptacle-side contact 220 is disposed on the insertion protrusion 212. Yes. The fitting portion 102 of the plug 110 is inserted and fitted into the fitting portion 210, thereby being electrically connected to the plug-side contact 108 of the plug 110.

  The receptacle 200 has a lock ring 300 attached to the outer periphery of the fitted portion 210. The lock ring 300 is movable in the opening direction of the fitted portion 210, and when the plug 110 and the receptacle 200 are fitted together, the axial direction (connection direction) of the connector device 10 is located at a position covering the fitting portion. The slide is moved along. The lock ring 300 rotates around the fitting portion to lock the plug 110 and the receptacle 200 in a connected state.

  The plug 110 is inserted into the convex fitting portion 102 to be inserted into the receptacle 200, the flange-like main body portion 104 in which the lock ring 300 is externally covered by a part (the continuous portion 144 shown in FIG. 6), and the wall portion. And a male screw portion 106 (see FIG. 2). Plug 110 is fixed to a planar portion (wall portion 400 shown in FIG. 9). A mounting nut 120 is attached to the plug 110 of FIG. In FIG. 1, the mounting nut 120 is screwed into the male screw portion 106 (see FIG. 2) of the plug 110.

  2-8 is a figure explaining the plug which is the connector of one Embodiment which concerns on this invention. 2 is a side view of the plug, FIG. 3 is a plan view of the plug, FIG. 4 is a front view of the plug, FIG. 5 is a rear view of the plug, and FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2.

  The fitting portion 102 shown in FIGS. 1 to 6 has a cylindrical shape having a recess 102 a that receives the insertion protrusion 212 in the fitting portion 210 of the receptacle 200.

  A plug-side contact 108 is accommodated in the recess 102a. The plug-side contact 108 is connected to the receptacle-side contact 220 disposed in the insertion protrusion 212 in the fitted portion 210 when the fitting portion 102 is inserted into the fitted portion 210 of the receptacle 200. The As shown in the drawing, the plug-side contact 108 is a male pin here, and is fitted to a thin female receptacle-side contact 220.

  As shown in FIG. 6, the plug-side contact (hereinafter referred to as “contact”) 108 is compression-connected to the end of the cable 150 in the plug 110. The fitting portion 102 is provided with a main body portion 104 and a male screw portion 106 continuously along the longitudinal direction of the contact 108 and the cable 150.

  The plug 110 includes a core (plug housing) 130 and an elastic covering portion 140 provided on the outer periphery of the core 130 and having waterproof properties such as an olefin-based thermoplastic elastomer.

  7A and 7B are diagrams for explaining the core in the plug of the connector device according to the embodiment of the present invention. FIG. 7A is a side view of the core, and FIG. 7B is a cross-sectional view taken along line BB in FIG. It is.

  The core 130 is a molded article made of an insulating material such as nylon, and includes a cylindrical portion 132 that opens on one end side, an intermediate portion 133 that is continuous with the bottom surface portion 132a of the cylindrical portion 132, and an intermediate portion 133. A continuous male screw portion 106 is integrally provided.

  As shown in FIG. 6, the plug-side contact 108 and the cable 150 are arranged inside the core 130 along the axial direction of the core 130. The core 130 holds the plug-side contact 108 and the cable 150. Specifically, the connection portion between the plug-side contact 108 and the cable 150 is held in a state of being penetrated by the bottom surface portion 132 a and the intermediate portion 133 of the cylindrical portion 132. The other end portion of the cable 150 is led out from the male screw portion 106 to the outside.

  A fitting covering portion 142 is provided on the outer periphery of the cylindrical portion 132 so as to be inclined so that the outer surface is lowered toward the opening at the tip. The tubular portion 132 constitutes the fitting portion 102 of the plug 110 together with the fitting covering portion 142.

  The cylindrical portion 132 has a recess 102 a, and a plurality of plug-side contacts 108 are arranged in the circumferential direction on the bottom of the cylindrical portion 132. Within the cylindrical portion 132, the plug-side contact 108 protrudes toward the opening side.

  In addition, a partition projection 136 is provided on the bottom surface portion 132a of the cylindrical portion 132 (the central portion of the intermediate portion 133). The partition projection 136 partitions the plurality of plug-side contacts 108 arranged in the circumferential direction on the bottom surface within the cylindrical portion 132. The partition protrusion 136 is formed at the distal end of the insertion protrusion 212 of the receptacle 200 when the insertion protrusion 212 of the receptacle 200 is inserted into the cylindrical portion 132 (the recess 102a shown in FIGS. 1 and 6) of the plug 110. The formed front end groove portion (partition groove portion) 213 (see FIG. 1) is fitted. With this configuration, when the receptacle-side contact 220 and the contacts 108 are connected to each other, the distance (insulating distance) between the contacts 108 (poles) at the connection portion is increased as compared with the case without the partition protrusion 136. Can be made. If the height of the partition projection 136 is 3 mm or more and 100 mm or less, a more preferable insulation distance can be secured.

  As shown in FIG. 7, the intermediate portion 133 is provided integrally between the cylindrical portion 132 and the male screw portion 106. The intermediate portion 133 is continuous with the bottom surface portion 132 a of the cylindrical portion 132. The intermediate portion 133 includes a core flange 1331 projecting radially from the outer periphery on the proximal end side of the cylindrical portion 132, and a regulation ring portion 1332 projecting outward from the tip of the male screw portion 106. The restriction ring 1332 is provided so as to protrude outward in the radial direction from the outer periphery of the end portion on the male screw portion 106 side in the intermediate portion 133 around the axis of the plug 110 (male screw portion 106). The outer diameter of the restriction ring 1332 is smaller than the diameter of the mounting hole 410 (see FIG. 9) in which the male screw portion 106 is inserted in the planar portion (for example, the wall portion 400 shown in FIG. 9) to which the plug 110 is attached. Therefore, the restriction ring 1332 is disposed in the attachment hole 410 (see FIG. 9) together with the male screw portion 106 when the plug 110 is attached to the wall portion 400.

  A groove portion 1334 extending in the circumferential direction is provided between the core flange 1331 and the regulating ring portion 1332. The groove 1334 is adjacent to the restriction ring 1332. A mounting flange portion 145 described later is fitted into the groove portion 1334.

  As shown in FIG. 6, the outer periphery of the intermediate portion 133 is covered with a main body covering portion 143 of the elastic covering portion 140. The intermediate portion 133 is covered with the main body covering portion 143 to constitute the main body portion 104.

  The main body covering portion 143 has a cylindrical shape, and the main body covering portion 143 includes a continuous portion 144 and an attachment flange portion 145. The continuous portion 144 is continuous with the attachment flange portion 145 and the base end portion of the fitting covering portion 142 and covers the core flange 1331. Further, the mounting flange portion 145 is arranged in the groove portion 1334 so as to be continuous with the continuous portion 144 and to protrude further in the radial direction from the regulating ring portion 1332 in the main body portion 104. The main body covering portion 143 constitutes an elastic covering portion 140 together with the fitting covering portion 142. Here, the main body covering portion 143 is formed integrally with the outer periphery of the core 130 together with the fitting covering portion 142. The mounting flange 145 of the main body covering portion 143 is provided between the groove portion 1334 between the core flange 1331 and the regulating ring 1332 which are opposed to the core 130 in the axial direction. That is, the elastic covering portion 140 constituted by the main body covering portion 143 and the fitting covering portion 142 is provided in a shape that is restricted from moving in the axial direction with respect to the core 130 and that does not come off the core 130.

  Further, in the main body covering portion 143, the tip side surface (surface on the cylindrical portion 132 side) 146 (see FIGS. 1 and 6) of the outer edge portion of the mounting flange portion 145 is the plug 110 and the receptacle 200 (see FIG. 1). The amount of displacement of the lock ring 300 (see FIG. 1) on the portion fitted to the is regulated.

  Further, a base end side surface 147 of the mounting flange portion 145 is a base end side surface 147 of the main body portion 104, and is orthogonal to the protruding direction of the male screw portion 106 here. The base end side surface 147 of the mounting flange portion 145 comes into contact with the wall surface when the plug 110 is mounted on the wall surface. Hereinafter, the base end side surface 147 of the mounting flange portion 145 is referred to as a “contact surface 147”. As shown in FIG. 2, the abutment surface 147 is an annular surface (see FIG. 2) that is in full contact with a front end surface (hereinafter referred to as “front end surface”) 122 of the mounting nut 120 that is screwed into the male screw portion 106. 8A).

  FIGS. 8A and 8B are views for explaining a mounting nut of the connector device according to the embodiment of the present invention. FIG. 8A is a front view and FIG. 8B is a cross-sectional view taken along the line CC in FIG.

  As shown in FIG. 2, the mounting nut 120 has a female screw portion 126 that is screwed into the male screw portion 106 of the plug 110 at the center portion. Further, the mounting nut 120 has a front end surface 122 (see FIGS. 2 and 8) that is in close contact with the contact surface 147. The outer diameter of the front end surface 122 is larger than the diameter of the mounting hole 410 (see FIG. 9) into which the male screw portion 106 is inserted. Further, a stepped portion 124 into which the regulating ring portion 1332 is inserted is formed extending in the circumferential direction on the inner diameter side of the distal end surface 122 of the inner peripheral surface where the female screw portion is formed in the mounting nut 120.

  When the mounting nut 120 is screwed into the male threaded portion 106, the stepped portion 124, together with the regulating ring portion 1332, causes the mounting nut 120 to be screwed into the tip side more than necessary, that is, the amount of displacement of the mounting nut 120 is reduced. regulate. In other words, the restriction ring 1332 restricts the displacement of the mounting nut 120 that is screwed into the male screw portion 106.

  In the mounting nut 120, the depth of the stepped portion 124 from the distal end surface 122 is such that the distal end surface 122 can abut on the abutment surface 147 of the plug 110 and press the abutment surface 147 when screwed into the male screw portion 106. To a certain depth.

  Further, when the mounting nut 120 is screwed onto the male screw portion 106, the stepped portion 124 is fitted to the restriction ring portion 1332, so that the attachment nut 120 is guided on the outer periphery of the restriction ring portion 1332 and the male screw portion. The base of 106 can be screwed.

  Next, a method for using the plug will be described.

  FIG. 9 is a cross-sectional view showing a usage state of the plug 110 of the connector device according to the present invention.

  The male screw portion 106 of the plug 110 is inserted into a mounting hole (opening portion) 410 formed in the wall portion 400 from the surface (one surface) 411 side of the wall portion 400. At this time, in the plug 110, the restriction ring portion 1332 is disposed in the mounting hole 410, and the contact surface 147 faces the wall surface portion of the peripheral edge of the mounting hole 410 on the surface 411. Then, the female screw portion 126 of the mounting nut 120 is screwed into the male screw portion 106 from the back surface (other surface) 412 side of the wall portion 400.

  Next, the front end surface 122 of the mounting nut 120 is displaced to the back surface 412 side by tightening the mounting nut 120 to the male screw portion 106. Along with this, the contact surface 147 of the main body 104 in the plug 110 contacts or presses the surface 411.

  Further, when the mounting nut 120 is tightened, that is, when the mounting nut 120 is screwed into the male screw portion 106, the wall portion 400 is sandwiched from both sides by the mounting nut 120 and the contact surface 147 of the main body portion 104. At that time, since the contact surface 147 includes the elastic covering portion 140, the contact surface 147 is elastically deformed and comes into close contact with the surface 411 of the wall portion 400. As a result, the plug 110 is firmly attached to the wall portion 400 in a state where the cable 150 led out from the male screw portion 106 is introduced into the wall portion 400 via the male screw portion 106 inserted into the attachment hole 410. It is done.

  According to the present embodiment configured as described above, the plug 110 can be manufactured simply by forming the core 130 so as to cover the elastic covering portion 140, and the fitting portion 102, the main body portion 104, and the male screw portion. Compared to a conventional configuration in which 106 is formed and combined separately, it can be easily assembled.

  Moreover, the convex fitting part 102 inserted in the concave fitting part 210 in the receptacle 200 is configured by being covered with the fitting covering part 142 of the elastic covering part 140. For this reason, the fitting part 102 and the to-be-fitted part 210 will be fitted in an airtight state via the fitting covering part 142. Therefore, the fitting process between the plug 110 and the receptacle 200 can be waterproofed. In addition, since the plug 110 is fixed in close contact with the wall portion 400, the waterproofness and dustproofness of the entire plug 110 can be improved.

  Further, the plurality of contacts 108 in the plug 110 are disposed so as to be adjacent to the bottom surface portion 132a of the cylindrical portion 132 in the circumferential direction, and a partition projection 136 that partitions the contacts 108 is provided on the bottom surface portion 132a. Yes. As a result, when the insertion protrusion 212 of the fitted portion 210 is inserted into the recess 102 a of the fitting portion 102 and the contacts 108 and 220 are connected to each other, the partition protrusion 136 is inserted into the partition groove 213 of the insertion protrusion 212. Is inserted. Therefore, it is possible to ensure a long insulation distance between the poles (cables) in the connector device as compared with the case where the partition protrusion 136 and the partition groove 213 are not provided.

  The embodiment of the present invention has been described above. The above description is an illustration of a preferred embodiment of the present invention, and the scope of the present invention is not limited to this. That is, the description of the configuration of the apparatus and the shape of each part is an example, and it is obvious that various modifications and additions to these examples are possible within the scope of the present invention.

  The connector device according to the present invention is useful as a device that can be applied to a connection portion when connecting a cable and a device.

DESCRIPTION OF SYMBOLS 10 Connector apparatus 100 1st connector 110 Plug 102 Fitting part 102a Concave part 104 Main body part 106 Male screw part 108 Plug side contact 110 Plug 120 Mounting nut 122 Front end surface 124 Step part 126 Female screw part 130 Core 132 Cylindrical part 132a Bottom part (Bottom)
133 Intermediate part 136 Partition projection part 140 Elastic covering part 142 Fitting covering part 143 Main body covering part 144 Continuous part 145 Mounting flange part 147 Abutment surface 150 Cable 200 Receptacle (second connector)
210 Fitting part 212 Insertion protrusion 213 Tip groove part (partition groove part)
220 Receptacle contact 300 Lock ring 400 Wall (planar)
410 Mounting hole 411 Front surface 412 Back surface 1331 Core flange 1332 Restriction ring portion 1334 Groove portion

Claims (4)

A first connector having a convex fitting portion and attached to the planar portion;
A second connector having a concave fitting portion into which the convex fitting portion is inserted and fitted;
A connector device comprising:
The first connector is
A cylindrical portion that opens at one end side, and a cylindrical portion that houses a plurality of contacts
A male screw part that is inserted into the attachment hole of the planar part and from which the attachment nut having an outer diameter larger than the diameter of the attachment hole is screwed from the back side of the planar part,
An intermediate portion disposed continuously between the tubular portion and the male screw portion;
Having a core made of an insulating material formed by integrally molding
The intermediate part is
A core flange projecting radially from the outer periphery on the base end side of the cylindrical portion;
A regulating ring portion that is disposed in the mounting hole and regulates displacement of a mounting nut that is screwed into the male screw portion;
With
Between the core flange and the restriction ring part, a groove part extending in the circumferential direction is provided adjacent to the restriction ring part,
The groove portion is provided with a mounting flange portion made of a waterproof elastic material that is elastically deformed by screwing of the mounting nut onto the male screw portion inserted into the mounting hole and comes into contact with the planar portion. ,
The cylindrical part constitutes the convex fitting part,
Connector device. The outer periphery of the concave fitting portion of the second connector is movable in the axial direction, and the convex fitting portion of the first connector and the concave fitting portion of the second connector are fitted together. A lock ring is provided that locks the first connector and the second connector in a connected state by rotating around the part;
In the connected state, the lock ring is in contact with the front end surface of the mounting flange portion.
The connector device according to claim 1. The plurality of contacts are arranged so as to be adjacent to the bottom surface of the cylindrical portion in the circumferential direction,
A partition projection for partitioning the contacts is provided on the bottom surface of the cylindrical portion of the first connector,
In the concave fitting portion of the second connector, an insertion protrusion to be inserted into the cylindrical portion is provided,
A partition groove portion into which the partition projection is inserted is provided at the distal end surface of the insertion projection.
The connector device according to claim 1 or 2. The height of the partition projection is 3 mm or more and 100 mm or less,
The connector device according to claim 3.

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