JP2016046180A - Inlet for charging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inlet for charging for which water infiltrating between the inner peripheral surface of a mounting hole and the outer peripheral surface of a hood portion is drained to the outside of the inlet for charging.SOLUTION: An inlet 10 for charging has an inlet main body 20 which has a terminal housing part (housing cylinder 21A) for mounting a terminal 40 therein, and is provided with a hood part (terminal hood part 21B) so that the hood part surrounds the terminal housing part, and a plate 30 which has a mounting hole 35 in which the hood part is fitted, and is assembled with the inlet main body 20 so that the inner peripheral surface of the mounting hole 35 and the outer peripheral surface of the hood part are fitted to each other over the whole periphery. The inlet main body 20 has a drain pipe 24 for draining water infiltrating into the terminal housing part to the outside, and an inset hole 27 intercommunicating with the inside of the drain pipe 24. The plate 30 has an inset piece 38 which is inset in the inset hole 27 while being continuous with the inner peripheral surface of the mounting hole 35.SELECTED DRAWING: Figure 2

Description

  The technique disclosed by this specification is related with the inlet for charge.

  2. Description of the Related Art Conventionally, as a charging connector that charges a battery by coupling a power feeding side connector to a power receiving side connector, for example, one described in Japanese Patent Application Laid-Open No. 2012-181984 (Patent Document 1 below) is known. In this charging connector, the power receiving side connector and the lighting unit are arranged side by side, and each is bolted to the body.

Japanese Unexamined Patent Publication No. 2012-181984

  In the above charging connector, the power receiving side connector and the lighting unit are provided separately, so that the installation space on the body side becomes large. In addition, since it is necessary to separately fasten the power receiving connector and the lighting unit to the body, the work for fastening to the body increases, and the number of fastening parts also increases. Therefore, if the lighting unit is not attached to the body but is attached to the power receiving side connector in advance, the installation space on the body side is reduced and the fastening work to the body is reduced.

  However, when the lighting unit is provided with a mounting hole for mounting the power receiving side connector, and the power receiving side connector is fitted into this mounting hole, the inner peripheral surface of the mounting hole and the outer peripheral surface of the power receiving side connector face each other. There is a possibility that water may enter the gap. If this gap is very narrow, it is expected that it will be difficult to drain once water has entered.

  The charging inlet disclosed in the present specification has a terminal accommodating portion in which a terminal is accommodated, and the inlet main body provided with a hood portion so as to surround the terminal accommodating portion and the hood portion are fitted to each other. And a plate that is assembled to the inlet main body so that the inner peripheral surface of the mounting hole and the outer peripheral surface of the hood portion extend along the entire circumference, and the inlet main body includes the terminal housing A drain pipe that drains water that has entered the inside of the section to the outside, and an insertion hole that communicates with the inside of the drain pipe, and the plate is connected to the inner peripheral surface of the mounting hole while the insertion It was set as the structure which has the insertion piece inserted in a hole.

  According to such a configuration, even when water enters between the inner peripheral surface of the mounting hole and the outer peripheral surface of the hood portion, the intruded water is sent to the inside of the drain pipe through the insertion piece, Water can be drained from the inside of the drain pipe to the outside of the charging inlet.

The charging inlet disclosed in the present specification may have the following configuration.
The surface of the insertion piece that faces the mounting hole and the inner peripheral surface of the mounting hole may be configured to be flush with each other.
According to such a structure, it becomes easy to flow water from the inner peripheral surface of an attachment hole to an insertion piece.

A rear frame provided on the inlet body and disposed around the hood portion; and a front frame disposed on the plate and disposed around the mounting hole; and A packing may be sandwiched between the front side frames, and the insertion piece may be disposed inside the packing.
According to such a configuration, the packing can prevent water from entering the mounting hole. In addition, the water that has entered between the inner peripheral surface of the mounting hole and the outer peripheral surface of the hood part is sent to the inside of the drain pipe through the insertion piece. It is possible to avoid the deterioration of the waterproof function.

  According to the charging inlet disclosed in the present specification, water that has entered between the inner peripheral surface of the mounting hole and the outer peripheral surface of the hood portion can be drained to the outside of the charging inlet.

Front view of charging inlet AA line sectional view in FIG. Rear view of the holding plate Front view of inlet body

<Embodiment>
Embodiments will be described with reference to FIGS. 1 to 4. The charging inlet 10 in the present embodiment includes an inlet body 20 shown in FIG. 4 and a holding plate (hereinafter referred to as “plate”) 30 shown in FIG. The inlet main body 20 has a connector fitting portion 21 into which a charging gun provided on the power supply side (not shown) can be fitted. The charging inlet 10 is fixed to the vehicle body. In the following description, the side of the connector fitting portion 21 that is fitted with the charging gun is referred to as the front side.

  The connector fitting portion 21 includes a plurality of housing cylinders 21A in which a plurality of terminals 40 are housed, and a cylindrical terminal hood portion 21B provided so as to collectively surround the housing cylinders 21A. Configured. On the upper surface of the terminal hood portion 21B, there is provided a lock hood portion 21C having a substantially gate shape and protruding upward. In the following, the terminal hood portion 21B and the lock hood portion 21C are collectively referred to as hood portions 21B and 21C.

  As shown in FIG. 2, the plurality of terminals 40 are integrally attached to the inner member 50 and fixed to the inner member 50 by the retainer 60. In this way, by assembling the inner member 50 in which the plurality of terminals 40 are assembled to the inlet body 20 from the rear, the round pin portion 41 of the terminal 40 is accommodated in the accommodating cylinder 21A from the rear. Further, since the O-ring 43 is sandwiched between the main body portion 42 of the terminal 40 and the inner member 50, water does not enter the body side from between these. Furthermore, since the seal ring 51 is sandwiched between the inner member 50 and the inlet body 20, water does not enter the body side from between these. Therefore, water does not enter the body side from the front (design surface side) of the charging inlet 10.

  A metal lock receiving portion 21D is provided inside the lock hood portion 21C, and a charging claw (not shown) of the charging gun is engaged with the lock receiving portion 21D so that the charging gun is fitted to the connector fitting portion 21. Each terminal of the charging gun is held connected to each terminal 40 of the connector fitting portion 21.

  Moreover, the inlet main body 20 is provided with the back side frame 22 distribute | arranged around the food | hood parts 21B and 21C, as shown in FIG. This rear frame 22 has a form that protrudes to the outer peripheral side with the connector fitting portion 21 as the center, a pair of left and right flange portions 22A that protrude obliquely downward from the terminal hood portion 21B, and both left and right sides from the lock hood portion 21C. And a pair of left and right flange portions 22B.

  A positioning recess 23 is provided at the lower end of the terminal hood portion 21B so as to protrude downward. A positioning projection (not shown) provided at the lower end portion of the charging gun is fitted into the positioning recess 23 so that the charging gun can be positioned in a correct fitting posture.

  As shown in FIG. 2, a cylindrical drain tube 24 is provided at the rear end portion of the positioning recess 23. The drain pipe 24 communicates with the inside of the connector fitting portion 21, and water that has entered the housing cylinder 21 </ b> A from the front (design surface side) of the charging inlet 10 is provided at the lower rear end of the housing cylinder 21 </ b> A. The drainage hole 21 </ b> E is sent to a common drainage space 25 provided at the rear of each storage cylinder 21 </ b> A, and sent to the inside of a drain pipe 24 provided below the drainage space 25. Then, the water in the drain pipe 24 is sent below and drained to the outside of the charging inlet 10.

  As shown in FIG. 4, an insertion hole 27 is provided at the lower end of the positioning recess 23. This insertion hole 27 has a cross-sectional shallow dish shape that penetrates in the front-rear direction and rises slightly on the left and right sides. The insertion hole 27 communicates with the inside of the drain tube 24 as shown in FIG.

  As shown in FIG. 3, the plate 30 includes a display unit 31 having a mounting hole 35 into which the hood units 21 </ b> B and 21 </ b> C are fitted, and a mounting plate 32 projecting to the outer peripheral side of the display unit 31. Yes. In the following, the surface of the hood portions 21B and 21C that faces the inner peripheral surface of the mounting hole 35 is defined as the outer peripheral surface of the hood portions 21B and 21C, and the outer peripheral surface of the hood portions 21B and 21C and the inner peripheral surface of the mounting hole 35. A slight gap is set in consideration of the mounting tolerance, and water can enter the gap from the front (design surface side).

  As shown in FIG. 1, the display unit 31 has a substantially circular shape, and a charging indicator 36 that displays a charging state or the like is provided between the inner peripheral surface of the mounting hole 35 and the outer peripheral edge of the display unit 31. As shown in FIG. 3, a plurality of screwing portions 37 for screwing an LED unit (not shown) are provided on the rear surface side of the mounting plate 32. The charging indicator 36 is lit by irradiating light forward from the LED unit. When the hood portions 21 </ b> B and 21 </ b> C are fitted into the attachment holes 35, the display portion 31 is disposed around the connector fitting portion 21 as shown in FIG. 1.

  A plurality of fixing nuts 34 are fixed to the rear surface side of the display unit 31 by fixing means such as press fitting. These fixing nuts 34 are arranged at positions closer to the mounting holes 35 than the respective screwing portions 37 in the left-right direction.

  As shown in FIG. 3, the mounting plate 32 has a substantially square shape as a whole. At the four corners of the mounting plate 32, through holes 33 are respectively provided penetrating in the plate thickness direction. As shown in FIG. 1, when the plate 30 is attached to the inlet body 20 from the front, the long collar 26 of the inlet body 20 is arranged to pass through the through-hole 33. Then, by inserting a stud bolt provided in advance in the body through the long collar 26 and tightening the nut, the inlet body 20 and the body are fixed by metal touch.

  Now, in the charging inlet 10 of the present embodiment, water does not enter the body side by the plurality of O-rings 43, seal rings 51, etc., but the inner peripheral surface of the mounting hole 35 and the outer periphery of the hood portions 21B, 21C. Since the surface is arranged along the entire circumference, water may enter between the outer peripheral surfaces of the hood portions 21 </ b> B and 21 </ b> C and the inner peripheral surface of the mounting hole 35. Even if water does not enter the body side, it is not preferable that charging is performed while water remains between the outer peripheral surfaces of the hood portions 21B and 21C and the inner peripheral surface of the mounting hole 35. .

  Therefore, as shown in FIG. 3, an insertion piece 38 that is inserted into the insertion hole 27 of the inlet body 20 while being continuous with the inner peripheral surface of the mounting hole 35 is rearward at the lower end portion of the inner peripheral surface of the mounting hole 35. It is provided in a form that overhangs. This insertion piece 38 has an outer shape that is slightly smaller than the insertion hole 27 and has a concave shape in which both left and right ends rise slightly upward, and a part of the inner peripheral wall of the mounting hole 35 is drained as shown in FIG. It is provided by extending to the tube 24 side. Further, the upper surface of the insertion piece 38 and the inner peripheral surface of the mounting hole 35 are flush with each other and are continuous. When the insertion piece 38 is inserted into the insertion hole 27, the tip of the insertion piece 38 is slightly protruded into the drain tube 24. Thereby, from the front of the charging inlet 10, the water that has entered between the outer peripheral surface of the hood portions 21 </ b> B and 21 </ b> C and the inner peripheral surface of the mounting hole 35 flows downwardly through these, and the insertion piece 38. Then, it passes through the insertion hole 27 along the upper surface and is sent into the drain tube 24. And the water in the drain pipe 24 is discharged | emitted from the lower end opening of the charging inlet 10 outside.

  The plate 30 includes a front frame 39 that projects from the inner peripheral surface of the mounting hole 35 to the outer peripheral side. An annular packing 28 is sandwiched between the rear frame 22 and the front frame 39, and the insertion piece 38 is disposed so as to pass through the inner peripheral side of the packing 28. Therefore, the water that has entered between the rear frame 22 and the front frame 39 is stopped by the packing 28 and enters between the outer peripheral surface of the hood portions 21B and 21C and the inner peripheral surface of the mounting hole 35. There is no. Further, as described above, the water that has entered between the outer peripheral surfaces of the hood portions 21B and 21C and the inner peripheral surface of the mounting hole 35 is drained into the drain pipe 24 through the insertion piece 38. The packing 28 is not deteriorated by the water accumulated between the outer peripheral surfaces of 21B and 21C and the inner peripheral surface of the mounting hole 35.

  The present embodiment is configured as described above, and its operation will be described subsequently. First, when water splashes from the front (design surface side) of the charging inlet 10 to the inside of the hood portions 21B and 21C, the water that has entered the housing cylinder 21A passes through the drain hole 21E and enters the drainage space 25. Then, the water is discharged from the drainage space 25 through the drain pipe 24 to the outside of the charging inlet 10. Further, the water that has entered the outside of the housing cylinder 21 </ b> A is drained from the positioning recess 23 to the outside of the charging inlet 10 through the drain pipe 24.

  On the other hand, the water that has entered between the outer peripheral surfaces of the hood portions 21 </ b> B and 21 </ b> C and the inner peripheral surface of the mounting hole 35 flows downward between these and is sent to the upper surface of the insertion piece 38. Then, the water sent to the upper surface of the insertion piece 38 is sent to the inside of the drain pipe 24 through the insertion hole 27, and drains to the outside of the charging inlet 10 by moving downward inside the drain pipe 24. Is done. Therefore, water does not collect between the outer peripheral surfaces of the hood portions 21B and 21C and the inner peripheral surface of the mounting hole 35, and the packing 28 does not deteriorate.

  As described above, in the present embodiment, even when water enters between the inner peripheral surface of the attachment hole 35 and the outer peripheral surfaces of the hood portions 21B and 21C, the intruded water passes through the insertion piece 38. It can be sent to the inside of the drain pipe 24 and drained from the inside of the drain pipe 24 to the outside of the charging inlet 10.

The surface of the insertion piece 38 that faces the mounting hole 35 and the inner peripheral surface of the mounting hole 35 may be configured to be flush with each other.
According to such a structure, it becomes easy to flow water from the inner peripheral surface of the attachment hole 35 to the insertion piece 38.

A rear frame 22 provided on the inlet body 20 and disposed around the hood portions 21B and 21C; and a front frame 39 provided on the plate 30 and disposed around the mounting hole 35; The packing 28 may be sandwiched between the frame 22 and the front frame 39, and the insertion piece 38 may be disposed inside the packing 28.
According to such a configuration, the packing 28 can prevent water from entering the mounting hole 35. Further, the water that has entered between the inner peripheral surface of the mounting hole 35 and the outer peripheral surfaces of the hood portions 21B and 21C is sent to the inside of the drain pipe 24 through the insertion piece 38, so that the water corrodes. Thus, it is possible to avoid the deterioration of the packing 28 and the waterproof function.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings, and includes, for example, the following various aspects.
(1) Although the insertion piece 38 is provided at the lower end portion of the inner peripheral surface of the mounting hole 35 in the above embodiment, it may be a position continuous with the inner peripheral surface of the mounting hole 35. You may provide an insertion piece in parts other than the lower end part of a surface.

  (2) In the above embodiment, although the upper surface of the insertion piece 38 and the inner peripheral surface of the mounting hole 35 are flush with each other, the upper surface of the insertion piece is connected to the inner periphery of the mounting hole 35 through a step. It is good also as what is located below a surface.

  (3) Although the annular packing 28 is illustrated in the above embodiment, the annular packing may be omitted as long as the drainage path by the packing is connected to the insertion piece and the sealing performance can be maintained.

DESCRIPTION OF SYMBOLS 10 ... Charging inlet 20 ... Inlet main body 21A ... Housing cylinder (terminal accommodating part)
21B ... Terminal hood portion 21C ... Lock hood portion 22 ... Rear side frame 24 ... Drain pipe 27 ... Insertion hole 28 ... Packing 30 ... Holding plate 35 ... Mounting hole 38 ... Insertion piece 39 ... Front side frame 40 ... Terminal

Claims (3)

An inlet body having a terminal housing portion in which the terminal is housed, and a hood portion provided so as to surround the terminal housing portion;
A mounting hole for fitting the hood portion; and a plate that is assembled to the inlet body so that the inner peripheral surface of the mounting hole and the outer peripheral surface of the hood portion extend along the entire circumference.
The inlet main body has a drain pipe that discharges water that has entered the terminal accommodating portion to the outside, and an insertion hole that communicates with the inside of the drain pipe.
The said plate is an inlet for charging which has the insertion piece inserted in the said insertion hole, continuing to the internal peripheral surface of the said attachment hole.   2. The charging inlet according to claim 1, wherein a surface of the insertion piece facing the attachment hole and an inner peripheral surface of the attachment hole are continuous with each other. A rear frame provided on the inlet body and disposed around the hood;
A front frame provided on the plate and disposed around the mounting hole;
The charging inlet according to claim 1 or 2, wherein a packing is sandwiched between the rear frame body and the front frame body, and the insertion piece is disposed inside the packing.

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