WO2017104527A1

WO2017104527A1 - Accessory socket

Info

Publication number: WO2017104527A1
Application number: PCT/JP2016/086506
Authority: WO
Inventors: 多嘉之小嶋; 加古　健一
Original assignee: 株式会社東海理化電機製作所
Priority date: 2015-12-18
Filing date: 2016-12-08
Publication date: 2017-06-22
Also published as: JP2017112035A

Abstract

An accessory socket (1) is provided with: a case (2) that has a cylinder shape with a bottom surface (24) and is provided with an insertion opening (22) into which a plug (8) for supplying power to electronic equipment is inserted; and a connector unit (5) that is provided with a terminal (55) in the interior thereof, and that is provided with a rib (52) formed on the top surface thereof so as to protrude higher than the bottom surface (24) when inserted into a center opening (26) in the bottom surface (24). The rib (52) defines a pathway (7b) through the bottom surface (24) and center opening (26) of the case (2) and over the top surface (51) of the connector unit (5) such that liquid which has entered into the case (2) is discharged to the exterior of the case (2).

Description

Accessory socket

The present invention relates to an accessory socket.

There is known a power socket configured by fitting a terminal / fuse assembly into a cylindrical metal inner case (see, for example, Patent Document 1).

In this terminal / fuse assembly, a terminal, a fuse, and a contact disk that are penetrated through a bottom wall are arranged in a housing formed of a resin cover plate and a fuse box. The fuse includes a fusible body on a tongue piece extending inwardly from the ring portion at the periphery of the elastic conductive plate. The tip of the plug inserted into the inner case pushes down the contact disk, so that the tongue comes into contact with the terminal and conducts from the contact disk to the terminal.

JP2013-122853A

However, in the power socket disclosed in Patent Document 1, when liquid enters the case, the liquid enters the terminal / fuse assembly from the gap between the inner case and the cover plate through the gap between the cover plate and the fuse box, The terminal may be immersed in liquid.

The objective of this invention is providing the accessory socket which suppresses that the liquid which entered in the case penetrate | invades into the inside of the connector part which has a terminal.

An accessory socket according to an embodiment of the present invention has a cylindrical shape having a bottom surface, a case having an insertion hole into which a plug for supplying power to an electronic device is inserted, a terminal inside, and an insertion into an opening in the bottom surface. And a connector portion that protrudes higher than the bottom surface, defines a path passing through the bottom surface, the opening, and the top surface of itself, and has a rib on the top surface that discharges the liquid that has entered the case to the outside.

According to one embodiment of the present invention, it is possible to provide an accessory socket that suppresses the liquid that has entered the case from entering the inside of the connector portion having the terminal.

FIG. 1A is a perspective view showing an accessory socket according to an embodiment. FIG. 1B is an explanatory diagram illustrating an example of an arrangement of accessory sockets. Drawing 2 is a sectional view showing the important section of the accessory socket concerning an embodiment. FIG. 3A is a top view illustrating the insulator of the accessory socket according to the embodiment. Drawing 3B is a front view showing the insulator of the accessory socket of an embodiment. FIG. 3C is a bottom view showing the insulator of the accessory socket according to the embodiment. Drawing 3D is a side view showing an insulator of an accessory socket of an embodiment.

(Summary of Embodiment)
The accessory socket according to the embodiment has a cylindrical shape having a bottom surface, a case having an insertion hole into which a plug for supplying power to an electronic device is inserted, a terminal inside, and a bottom surface that is inserted into an opening in the bottom surface. A connector portion that protrudes higher, defines a path passing through the bottom surface, the opening, and the top surface of the case, and has a rib on the top surface that discharges the liquid that has entered the case to the outside.

In this accessory socket, the liquid that enters the case is discharged to the outside through a route that passes through the bottom surface, the opening, and the top surface of the connector part, so that the liquid that enters the case enters the inside of the connector part having a terminal. Can be suppressed.

[Embodiment]
(Outline of accessory socket 1)
FIG. 1A is a perspective view showing an accessory socket according to the embodiment, and FIG. 1B is an explanatory view showing an example of the arrangement of the accessory socket. Drawing 2 is a sectional view showing the important section of the accessory socket concerning an embodiment. FIG. 3A is a top view showing an insulator of the accessory socket according to the embodiment, and FIGS. 3B to 3D are a front view, a bottom view, and a side view of the insulator. In each figure according to the embodiments described below, the ratio between figures may be different from the actual ratio.

For example, as shown in FIG. 1B, the accessory socket 1 is mounted on the vehicle 9 and is electrically connected to the battery of the vehicle 9. The accessory socket 1 is configured to supply electric power based on a battery to the electronic device when the plug 8 of the electronic device is inserted.

Specifically, as shown in FIGS. 1A, 1B and 2, the accessory socket 1 has a cylindrical shape having a bottom surface 24 and a case 2 having an insertion hole 22 into which a plug 8 for supplying power to an electronic device is inserted. And has a terminal (terminal 55) inside, is inserted into the opening (center hole 26) of the bottom surface 24, protrudes higher than the bottom surface 24, and defines a path 7b passing through the bottom surface 24, the center hole 26 and its own top surface 51. The connector portion 5 has a rib 52 on the upper surface 51 for discharging the liquid that has entered the case 2 to the outside of the case 2.

The accessory socket 1 is formed of a conductive member, and is electrically connected to the plug 8 and electrically connected to the terminal 55 of the connector portion 5, and the hole 412 into which the contact terminal 3 is inserted is provided on the upper surface. And the insulator 4 having a groove portion (circular groove 403) into which the rib 52 is inserted into the bottom surface 401 of the flange portion 40. I have.

(Configuration of Case 2)
As shown in FIGS. 1A and 2, the case 2 is formed in a cylindrical shape from a conductive metal material. An insertion hole 22 is formed at one end of the case 2. The plug 8 is inserted into the insertion hole 22.

A connector housing 5 a of the connector portion 5 is attached to the other end portion of the case 2. The rib 52 of the connector housing 5a is inserted into a central hole 26 formed in the center of the bottom surface 24 of the case 2.

The side surface 21 of the case 2 is provided with, for example, a plurality of openings 23, and the attachment destination claws are fitted into the floor console 90.

A plurality of drain openings 25 are formed on the side surface 21 on the bottom surface 24 side of the case 2. In the drain opening 25, the flange portion 40 of the insulator 4 is exposed. Accordingly, the liquid that has entered the case 2 is discharged from the drain opening 25 via the path 7 a that travels through the flange portion 40.

The case 2 is entirely formed of a conductor material, but is not limited thereto, and it is sufficient that at least a region where an electrode protruding on the side surface of the plug 8 contacts is formed of a conductor material.

(Configuration of contact terminal 3)
The contact terminal 3 is formed of a conductive metal material. For example, as shown in FIG. 2, the contact terminal 3 includes a columnar portion 30 having a columnar shape, and a disk portion 33 that is provided on the distal end portion 31 side and protrudes in the radial direction of the columnar portion 30. .

The contact terminal 3 is inserted into the hole 412 of the insulator 4. As shown in FIG. 2, the hole 412 is connected to an insertion hole 413 having a small radius. When the end portion 32 of the contact terminal 3 is inserted into the insertion hole 413, the disk portion 33 comes into contact with the lower surface 414 serving as a boundary between the hole 412 and the insertion hole 413. And the end part 32 is crimped, for example, and the case 2, the insulator 4, and the connector part 5 are united. By this caulking, the contact terminal 3 and the terminal 55 of the connector part 5 are electrically connected.

The upper surface 310 of the contact terminal 3 is located at a position lower than the upper surface 410 of the tubular portion 41 of the insulator 4 as shown in FIG. Therefore, the upper surface 310 is unlikely to come into contact with a conductive member placed on the upper surface 410 of the insulator 4.

(Configuration of insulator 4)
For example, the insulator 4 is made of a flame retardant resin such as polyamide or polyvinyl chloride. As shown in FIGS. 3A to 3D, the insulator 4 includes a flange portion 40 having a disk shape, a cylindrical portion 41 protruding from the center of the flange portion 40, and the flange portion 40 and the cylindrical portion 41 in contact with the cylindrical portion. And a pair of support portions 44 facing each other through 41.

The flange portion 40 is formed with a slope portion 400 whose surface is inclined outward. As described above, the slope portion 400 is disposed in the case 2 such that the surface is exposed to the drain opening 25 of the case 2. Part of the liquid that has entered the case 2 is discharged out of the case 2 through a path 7 a that flows from the inclined surface portion 400 toward the drain opening 25.

As shown in FIGS. 3C and 3D, a pair of protrusions 402 protruding in the normal direction of the bottom surface 401 and a circular groove 403 surrounding the insertion hole 413 are formed on the bottom surface 401 of the flange portion 40.

The protrusion 402 is inserted into an opening formed on the bottom surface 24 of the case 2. Further, as shown in FIG. 2, the rib 52 of the connector housing 5a is inserted into the circular groove 403.

The cylindrical portion 41 has, for example, a cylindrical shape, but is not limited to this, and the radial cross section may be rectangular.

A slit 42 and a slit 43 are formed in the tube portion 41. The slit 42 and the slit 43 are formed so that the liquid that has entered the hole 412 into which the contact terminal 3 is inserted flows toward the inclined surface portion 400 of the flange portion 40.

The

slits

42 and 43 are formed in the cylindrical portion 41 so that a line passing through the center of the slit and the center of the hole 412 is a curve. Therefore, the accessory socket 1 can suppress contact between the contact terminal 3 and the case 2 at the same time even if a conductive member such as a coin enters the case 2 unintentionally, thereby suppressing occurrence of a short circuit. . As a modification, the slit may be a straight line passing through the center of the slit and the center of the hole 412 as long as the conductive member does not contact the case 2 and the contact terminal 3 at the same time, and the number is not limited.

As shown in FIG. 2, the insulator 4 has a protrusion 415 whose side surface is the side surface of the circular groove 403. The rib 52 has a cylindrical shape and has a central opening 53 at the center, and the protrusion 415 of the insulator 4 is inserted into the central opening 53.

The liquid that has passed through the gap between the case 2 and the insulator 4 is blocked by the rib 52 in the circular groove 403 and cannot enter the connector portion 5, and the upper surface 51 of the connector housing 5 a from the central hole 26 of the case 2. Is discharged to the outside through a route 7b that travels along the path.

Here, as shown in FIG. 2, the circular groove 403 forms a space 520 between the ribs 52 so that liquid cannot rise between the ribs 52 and the circular grooves 403 due to capillary action. When the space between the circular groove 403 and the rib 52 is small, there is a possibility that the liquid that has reached the rib 52 exceeds the rib 52 and the terminal 55 is submerged by capillary action. However, as shown in FIG. 2, the circular groove 403 of the present embodiment has a sufficiently large space 520 on the side surface and the upper side of the rib 52, so that the capillary phenomenon that causes the liquid that has entered the space 520 to exceed the rib 52. Does not occur.

Further, the space 520 can be discharged while accumulating a large amount of liquid as compared with the case where the space 520 is not formed. Further, since the space between the central hole 26 of the case 2 and the rib 52 is wide, the liquid accumulated in the space 520 is easily discharged from the gap between the lower surface 28 of the case 2 and the upper surface 51 of the connector housing 5a.

The paths through which the liquid that has entered the case 2 is discharged are mainly the

paths

7a and 7b. The path 7 a is a path that passes through the slope portion 400 and is discharged from the drain opening 25, and a path that passes from the hole 412 of the cylinder portion 41 through the slits (slit 42 and slit 43), the slope portion 400, and the drain opening 25. The path 7 b is a path that is discharged via the gap between the case 2 and the insulator 4, the central hole 26, and the upper surface 51 of the connector portion 5.

Specifically, the path 7b includes a gap between the side surface of the case 2 and the flange portion 40, a gap between the bottom surface 24 of the case 2 and the bottom surface 401 of the flange portion 40, a gap between the center hole 26 and the rib 52, and the lower surface 28 of the case 2. This is a path that is discharged out of the connector portion 5 through a gap in the upper surface 51 of the connector housing 5a. As described above, even when a large amount of liquid enters the case 2, the liquid is discharged from the gap between the central hole 26 and the rib 52 while collecting in the space 520 surrounded by the circular groove 403 and the case 2.

(Configuration of connector unit 5)
The connector part 5 has, for example, a connector housing 5a formed of resin and a connector body 5b. The connector housing 5a is formed in a cylindrical shape, for example. 2, the connector housing 5a has a connection opening 50 on the lower side and a rib 52 on the upper side.

For example, a connector main body 5b is attached to the connection opening 50. Specifically, an opening 56 is formed in the side surface of the connector housing 5a, and the connector housing 5a and the connector body 5b are integrated by fitting the claw portion 58 of the connector body 5b. For example, a harness connector of the vehicle 9 is connected to the connector body 5b.

The rib 52 has, for example, a cylindrical shape that protrudes around the insertion opening 54 into which the terminal 55 is inserted. The rib 52 is inserted into the central hole 26 of the case 2 and is inserted into the circular groove 403 of the insulator 4. The central opening 53 of the rib 52 is connected to the insertion opening 54. The cylindrical portion 30 and the terminal 55 of the contact terminal 3 are inserted into the insertion opening 54.

The terminal 55 is formed using a conductive metal material. The terminal 55 has, for example, a disk-shaped disk part 550, and a cylindrical part 551 formed so as to protrude from the center is inserted into the insertion opening 54 of the connector housing 5a. The contact terminal 3 is inserted into the opening 552 of the cylindrical portion 551. The connector portion 5 may be attached to the case 2 via a member such as a washer between the connector portion 5 and the case 2.

(Effect of embodiment)
The accessory socket 1 according to the present embodiment can suppress the liquid that has entered the case 2 from entering the connector portion 5 having the terminal 55. Specifically, in the accessory socket 1, the rib 52 prevents water from entering the terminal 55, so that the liquid that has entered the case 2 passes through the bottom surface 24, the central hole 26, and the top surface 51 of the connector portion 5. Is discharged outside. Therefore, the accessory socket 1 can suppress the liquid that has entered the case 2 from entering the connector portion 5.

In the accessory socket 1, the space 520 is formed between the circular groove 403 and the rib 52 so that the capillary phenomenon does not occur and the space 520 is formed. Can be stored. Further, since the accumulated liquid is large between the central hole 26 and the rib 52, it is more easily discharged as compared with the case where the liquid is closer.

As mentioned above, although some embodiment and modification of this invention were demonstrated, these embodiment and modification are only examples, and do not limit the invention which concerns on a claim. These novel embodiments and modifications can be implemented in various other forms, and various omissions, replacements, changes, and the like can be made without departing from the spirit of the present invention.
In addition, not all the combinations of features described in these embodiments and modifications are essential to the means for solving the problems of the invention. Furthermore, these embodiments and modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Accessory socket 2 Case 3 Contact terminal 4 Insulator 5

Connector part

7a, 7b Path | route 8 Plug 22 Insertion hole 24 Bottom face 26 Central hole 40 Flange part 41 Cylindrical part 51 Upper surface 52 Rib 53 Central opening 55 Terminal 415 Protrusion part 520 Space

Claims

A cylindrical shape having a bottom surface, a case having an insertion hole into which a plug for supplying power to an electronic device is inserted;
Having a terminal inside, and having a connector portion having a rib formed on the upper surface so as to be inserted into the opening of the bottom surface and protrude higher than the bottom surface;
The rib is an accessory socket that defines a path that passes through the bottom surface, the opening, and the top surface of the connector portion of the case so that the liquid that has entered the case is discharged out of the case.
A contact terminal formed of a conductive member, electrically connected to the plug and electrically connected to the terminal of the connector portion;
A cylinder portion having a hole into which the contact terminal is inserted on an upper surface, a flange portion provided at a lower portion of the cylinder portion, and an insulator having a groove into which the rib is inserted on the bottom surface of the flange portion. The accessory socket according to claim 1.
The accessory socket according to claim 2, wherein the groove forms a space between the rib and the rib that prevents the liquid from rising between the rib and the groove based on capillary action.
The insulator has a protrusion whose side surface is the side surface of the groove,
The accessory socket according to claim 2 or 3, wherein the rib has a cylindrical shape and has a central opening at the center, and the protrusion of the insulator is inserted into the central opening.
The accessory socket according to any one of claims 1 to 4, wherein the rib has a height that prevents the liquid passing through a gap between the case and the insulator from entering the connector portion.
The case further has a drain opening for discharging the liquid on a side surface,
The accessory socket according to claim 5, wherein a height of the rib is higher than a lower end of the drain opening.
The accessory socket according to claim 3, wherein the space is formed outside and above the rib.