WO2017104526A1

WO2017104526A1 - Accessory socket

Info

Publication number: WO2017104526A1
Application number: PCT/JP2016/086505
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: JP2017112034A

Abstract

An accessory socket (1) is provided with: a case (2) that has water-release openings (25) for discharging a liquid in the lateral surface (21) thereof, and serves as one terminal for supplying power to a plug (8) inserted therein; a contact terminal (3) that serves as another terminal for supplying power to the plug (8); and an insulator (4) that is provided with a cylinder portion (41) having an opening (412) in the top surface (410) thereof into which the contact terminal (3) is inserted, a flange portion (40) that is provided to the bottom portion (411) of the cylinder portion (41), and a slit (42) and a slit (43) for discharging a liquid that connect to the opening (412) and the flange portion (40) and are formed extending from the top surface (410) to the bottom portion (411).

Description

Accessory socket

The present invention relates to an accessory socket.

It consists of a resin outer case and a metal inner case, with a case with a drain hole on the side, and a terminal / fuse assembly that is attached to the back end of the case and incorporates terminals, fuses and contacts A known power socket is known (see, for example, Patent Document 1).

The terminal / fuse assembly has a resin cover plate having a cylindrical shape and a contact disk disposed in the cover plate. The cover plate has a hole in the upper wall through which the contact disk is exposed. When the plug of the electronic device is inserted into the case, one electrode provided on the side surface comes into contact with the inner case, and the other electrode provided at the tip contacts the contact disk exposed in the hole. Electric power can be supplied to the electronic device.

JP2013-122853A

However, when a liquid enters the case, the power socket disclosed in Patent Document 1 can discharge the liquid that has entered the hole of the cover plate, although it is discharged from the drain hole provided on the side of the case. The contact disk may be submerged.

The objective of this invention is providing the accessory socket which suppresses that a liquid pool is formed on a contact terminal.

An accessory socket according to an embodiment of the present invention has at least a part formed of a conducting member and has an opening for discharging liquid on a side surface, and the conducting member serves as one terminal for supplying power to the inserted plug. A contact terminal which is formed of a case and a conductive member and serves as the other terminal for supplying power to the plug; a cylindrical portion having an upper surface with a hole into which the contact terminal is inserted; a flange portion provided at a lower portion of the cylindrical portion; And an insulator having at least one slit that extends from the upper surface to the lower portion and discharges the liquid.

According to one embodiment of the present invention, it is possible to provide an accessory socket that suppresses formation of a liquid pool on a contact terminal.

FIG. 1A is a perspective view illustrating an accessory socket according to an embodiment. FIG. 1B is an explanatory diagram illustrating an example of an arrangement of accessory sockets. FIG. 2A is a top view illustrating the accessory socket according to the embodiment. 2B is a cross-sectional view taken along the line II (b) -II (b) in FIG. 2A and viewed from the direction of the arrows. 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. Drawing 4A is an explanatory view showing an example of a slit formed in an insulator of an accessory socket of an embodiment. Drawing 4B is an explanatory view showing other examples of a slit formed in an insulator of an accessory socket of an embodiment. Drawing 4C is an explanatory view showing other examples of a slit formed in an insulator of an accessory socket of an embodiment.

(Summary of Embodiment)
The accessory socket according to the embodiment has a case in which at least a part is formed of a conductive member, has an opening for discharging liquid on a side surface, and the conductive member serves as one terminal for supplying power to the inserted plug; A contact terminal which is formed of a conductive member and serves as the other terminal for supplying power to the plug, a cylindrical portion having a hole into which the contact terminal is inserted on the upper surface, a flange portion provided at the lower portion of the cylindrical portion, and a hole and a flange And an insulator having at least one slit formed from the upper surface to the lower portion and discharging the liquid.

In this accessory socket, since the liquid that has entered the cylinder portion is removed from the slit and discharged from the opening, it is possible to suppress the formation of a liquid reservoir on the contact terminal.

[Embodiment]
(Outline of accessory socket 1)
FIG. 1A is a perspective view illustrating an accessory socket according to the embodiment, and FIG. 1B is an explanatory diagram illustrating an example of an arrangement of the accessory socket. 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 and 1B, the accessory socket 1 is at least partially formed of a conductive member, and has an opening (drain opening 25) for discharging liquid on the side surface 21. A case 2 serving as one terminal for supplying power to the inserted plug 8, a contact terminal 3 serving as the other terminal for supplying power to the plug 8, and a hole into which the contact terminal 3 is inserted. A cylindrical portion 41 having 412 on the upper surface 410, a flange portion 40 provided in a lower portion 411 of the cylindrical portion 41, and a hole 412 and the flange portion 40, and is formed from the upper surface 410 to the lower portion 411 to discharge liquid And an insulator 4 having one slit. The slits of this embodiment are the slit 42 and the slit 43 as an example.

(Configuration of Case 2)
2A is a top view illustrating the accessory socket according to the embodiment, and FIG. 2B is a cross-sectional view taken along the line II (b) -II (b) in FIG. 2A and viewed from the arrow direction.

As shown in FIGS. 1A and 2A, the case 2 is formed in a cylindrical shape having a bottom by 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 is attached to the other end of the case 2 as shown in FIG. 2B. The connector housing 5 is attached by inserting a support portion 44 into a center hole 26 formed at 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 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. 2A and 2B, for example, the contact terminal 3 includes a columnar portion 30 having a columnar shape, and a disc portion 33 provided on the tip end portion 31 side and protruding in the radial direction of the columnar portion 30. ing.

The contact terminal 3 is inserted from the end 32 into the hole 412 of the insulator 4. As shown in FIG. 2B, 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.

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. 2B. 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.

The end portion 32 of the contact terminal 3 is electrically connected to a terminal disposed in the connector housing 5 by caulking or the like.

(Configuration of insulator 4)
3A is a top view showing the insulator of the accessory socket according to the embodiment, FIG. 3B is a front view showing the insulator, FIG. 3C is a bottom view showing the insulator, and FIG. 3D is a side view showing the insulator. FIG. 4A to 4C are explanatory views showing examples of slits formed in the insulator of the accessory socket according to the embodiment. 4A to 4C, only the cylinder portion 41 is shown.

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 has a slope portion 400 with the surface 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. The liquid that has entered the case 2 flows from the slope portion 400 toward the drain opening 25 and is discharged out of the case 2.

2B, 3C and 3D, a pair of protrusions 402 protruding in the normal direction of the lower surface 401 and a circular groove 403 surrounding the insertion hole 413 are formed on the lower surface 401 of the flange portion 40. .

The protrusion 402 is inserted into the opening 27 formed on the bottom surface 24 of the case 2. Further, as shown in FIG. 2B, the protruding portion 52 of the connector housing 5 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 415 of the hole 412 is a curve. As shown in FIG. 4A, the slits 42 and the slits 43 of the present embodiment are not linearly directed toward the center 415. Therefore, a line 420 passing through the center of the slit 42 and the center 415 of the hole 412 and a line 430 passing through the center of the slit 43 and the center 415 of the hole 412 are curved along the way.

Here, as shown in FIG. 2A, when a conductive member 7 having a linear shape at a certain angle, such as a coin, enters the case 2, the case 2 and the contact terminal 3 may be contacted depending on the shape of the slit. , I'm short-circuited.

In the present embodiment, since the slit 42 and the slit 43 are not formed linearly toward the center 415, the angle between the line 420 and the line 430 at the center 415 is 180 ° because the slit 42 and the slit 43 face each other. It has a shape that no coins can enter. Even if the conductive member 7 is a member that is small enough to fit into the slit 42 and the slit 43, it does not face the center 415 and therefore does not contact the case 2 and the contact terminal 3 at the same time.

The slits 45a to 45c shown in FIG. 4B are a modification example in which the line passing through the center of the slit and the center 415 of the insertion hole 413 is a straight line. The slits 45a to 45c are linearly formed toward the center 415 as shown in FIG. 4B. The slits 45a to 45c are formed in the cylindrical portion 41 so that the angle formed by the

lines

450a, 450b, and 450c is other than 180 °. As an example, the angle formed in this modification is 120 °.

As described above, when the plurality of slits are formed at an angle other than 180 °, the conductive member 7 does not fit into the plurality of slits at the same time. However, in the case of the small conductive member 7, since it may be fitted in a slit and may contact the case 2 and the contact terminal 3 simultaneously, it is more desirable that it is a curve. The number of slits is arbitrary when the angle formed by the line is other than 180 °.

The slit 46a and the slit 46b shown in FIG. 4C are other modifications in which a line passing through the center of the slit and the center 415 of the insertion hole 413 is a curve. The slit 46a and the slit 46b are formed to face each other, and the angle formed by the line 460a and the line 460b at the center 415 is 180 °. The conductive member 7 is shaped so as not to enter the slit.

The slit 42 and slit 43 shown in FIG. 4A and the slit 46a and slit 46b shown in FIG. 4C do not pass through the center 415 when a line passing through the center of the slit is extended as shown by dotted lines in FIGS. 4A and 4C. Is formed.

Therefore, the slits are free in number, shape, etc. if the line does not pass through the center 415. In addition, the slit is formed such that when the line is extended, when passing through the center 415, the angle at the center 415 is an angle other than 180 °.

(Configuration of connector housing 5)
The connector housing 5 is formed in a cylindrical shape using a resin, for example. As shown in FIG. 2B, the connector housing 5 has a connection opening 50, an insertion opening 51, and a protrusion 52.

For example, a connector main body is attached to the connection opening 50. For example, a harness connector of the vehicle 9 is connected to the main body. The insertion opening 51 has, for example, a circular shape and is formed at the upper center, and the end 32 of the contact terminal 3 is inserted therein.

The protrusion 52 has, for example, a cylindrical shape that protrudes around the insertion opening 51. The protrusion 52 is inserted into the central hole 26 of the case 2 and is inserted into the circular groove 403 of the insulator 4.

(Effect of embodiment)
The accessory socket 1 according to the present embodiment can suppress the formation of a liquid pool on the contact terminal 3. Specifically, since the accessory socket 1 has the slit 42 and the slit 43 formed in the cylindrical portion 41, the liquid accumulated in the hole 412 flows from the slit 42 and the slit 43 to the slope portion 400 of the insulator 4, and the drain opening 25 is discharged outside. Therefore, the accessory socket 1 can suppress the formation of a liquid pool on the contact terminal 3.

The accessory socket 1 is formed with a slit 42 and a slit 43 so that when the conductive member 7 such as a coin enters the case 2 unintentionally, the conductive member 7 is unlikely to contact the case 2 and the contact terminal 3 at the same time. Therefore, compared with the case where the conductive member is fitted in the slit and contacts the case and the contact terminal at the same time, the occurrence of a short circuit is suppressed and the robustness is improved.

In the accessory socket 1, since the slope portion 400 of the flange portion 40 of the insulator 4 is inclined, the liquid that has entered the case 2 easily flows from the slope portion 400 to the drain opening 25 as compared with the case where the accessory socket 1 is not inclined.

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 25 Drain opening 40 Flange part 41

Cylinder part

42, 43 Slit 400 Slope part 410 Upper surface 411 Lower part 412 Hole 415 Center 420,430,450a-450c, 460a, 460b Line

Claims

A case that is at least partially formed of a conductive member, has an opening for discharging liquid on a side surface, and serves as one terminal for supplying power to the plug in which the conductive member is inserted;
A contact terminal formed of a conductive member and serving as the other terminal for supplying power to the plug;
A cylinder portion having a hole into which the contact terminal is inserted on the upper surface, a flange portion provided at a lower portion of the cylinder portion, and the liquid that is formed from the upper surface to the lower portion and communicates with the hole and the flange portion. And an insulator socket having at least one slit for discharging.
The accessory socket according to claim 1, wherein the slit is formed in the cylindrical portion so that a line passing through a center of the slit and a center of the hole is a curve.
The insulator has a plurality of the slits,
The plurality of slits are formed in the cylindrical portion so that an angle formed by each straight line is other than 180 ° when a line passing through the center of the slit and the center of the hole is a straight line. Accessory socket as described.
The accessory socket according to any one of claims 1 to 3, wherein the flange portion has a slope portion whose surface is inclined downward toward the outer end.
The accessory socket according to any one of claims 1 to 4, wherein the flange portion is disposed on the case such that a surface thereof is exposed to the opening of the case.
The insulator has a plurality of the slits,
The accessory socket according to claim 1, wherein the plurality of slits are formed so that a linear conductive member does not fit into the plurality of slits simultaneously.
The accessory socket according to any one of claims 1 to 4, wherein the opening of the case has a height greater than a side surface of the flange parallel to an inner wall of the case.
The accessory socket according to claim 4, wherein an upper end of the slope portion has the same level as a lower end of the slit formed in the cylindrical portion.