JP6270042B2 - connector - Google Patents

Description

  The technology disclosed by this specification is related with a connector.

  Conventionally, as a vehicle-side connector provided with a terminal accommodating portion provided with a cavity for accommodating a vehicle-side terminal fitting, for example, a device described in Japanese Patent Application Laid-Open No. 2012-221612 (Patent Document 1 below) is known. The vehicle-side terminal fitting includes a terminal connecting portion having a round pin shape and a wire connecting portion connected to the electric wire. At the rear end portion of the terminal connection portion, a flange portion for retaining is provided. On the other hand, the cavity includes a front cavity that accommodates the terminal connection portion and a rear cavity that accommodates the wire connection portion, and a partition wall is provided between the front cavity and the rear cavity in the terminal accommodation portion. It has been. The partition wall is provided with an insertion hole for communicating the front cavity and the rear cavity. When the vehicle side terminal fitting is inserted forward from the rear cavity, the terminal connection portion enters the front cavity through the insertion hole of the partition wall, and the flange portion contacts the rear surface of the partition wall. Is stopped before.

JP 2012-221612 A

  Incidentally, a clearance is set between the outer peripheral surface of the terminal connecting portion and the inner peripheral surface of the insertion hole in consideration of the workability of assembling the vehicle side terminal fitting with respect to the terminal accommodating portion. However, if the clearance is set, the inclination of the terminal connection portion is allowed. Therefore, when the charging connector is fitted to the vehicle side connector while the terminal connection portion is inclined, the charging side terminal fitting provided on the charging connector is provided. And the vehicle-side terminal metal fitting increase in frictional resistance, making it difficult to obtain a good fit feeling.

  The connector disclosed by this specification is a connector provided with a terminal accommodating part in which a terminal is accommodated inside, a terminal having a first connection part extending in the axial direction, and provided in the terminal accommodating part, A configuration including a partition wall in which an insertion hole for inserting the first connection portion is formed, and a cylindrical inclination suppressing portion extending in the axial direction from the partition wall along the outer peripheral surface of the first connection portion; did.

  According to such a configuration, when the clearance is set between the outer peripheral surface of the first connection portion and the inner peripheral surface of the insertion hole, and the first connection portion is inclined by this clearance, the partition wall and the inclination suppression portion The first connecting portion is supported at the two locations, and the inclination of the terminal can be suppressed as compared with the case where the terminal is supported only by the partition wall. In other words, when the above clearance is constant, the inclination of the terminal can be made gentler as the distance between the two abutting parts in contact with the terminal becomes longer. The distance between the two contact portions in contact with the first connection portion is increased by the length of the portion, and the inclination of the terminal becomes gentle.

The connector disclosed by this specification is good also as the following structures.
The terminal accommodating portion includes a first cavity in which the first connection portion is arranged to protrude forward from the partition wall, and a second cavity disposed in the rear of the partition wall, It is good also as a structure distribute | arranged to the 2nd cavity.
According to such a configuration, the inclination of the terminal can be suppressed without changing the shape of the first cavity.

It is good also as a structure provided with the connection wall which connects the outer peripheral surface of the said inclination suppression part, and the inner peripheral surface of the said 2nd cavity.
According to such a structure, since the inclination suppression part can be reinforced by the connection wall, it can suppress that an inclination suppression part bends with respect to a partition.

A plurality of the connecting walls may be provided at equiangular intervals with the tilt suppressing portion as the center.
According to such a configuration, the inclination suppressing portion can be reinforced from a plurality of directions by the plurality of connecting walls.

The terminal includes the first connection portion, a second connection portion disposed behind the first connection portion, and a flange portion provided between the first connection portion and the second connection portion. It is good also as a structure provided.
According to such a configuration, the inclination of the terminal can be suppressed by bringing the flange portion into contact with the connecting wall. In other words, depending on the dimensional variation of the first connecting portion and the tilt suppressing portion, a situation where the tilt of the terminal may increase may occur. Such a situation can be avoided in advance.

  According to the connector disclosed by this specification, the inclination of a terminal can be suppressed.

Front view of connector Rear view of connector 2 is an enlarged view of the main part of FIG. AA line sectional view in FIG. BB sectional view in FIG. Sectional drawing which showed the state in which the male terminal inclined and the 1st connection part was supported by two places of a partition and an inclination suppression part Sectional drawing which showed the state in which the male terminal inclined and the 1st connection part was supported by two places, a partition and a connection wall

<Embodiment>
The embodiment will be described with reference to the drawings of FIGS. The connector 10 of the present embodiment is a charging inlet for charging a battery mounted on an electric vehicle or a hybrid vehicle, and is attached and fixed to a vehicle body. The connector 10 can be fitted with a charging connector connected to a charging stand. In the following description, the fitting surface side with the charging connector (the front side in FIG. 1) is the front side.

  As shown in FIG. 1, the connector 10 includes a substantially cylindrical connector fitting portion 20 into which a charging connector can be fitted, a mounting plate 50 that holds a plurality of metal collars 51 that are attached and fixed to a vehicle body, and the like. It is configured with. The plurality of metal collars 51 are arranged around the connector fitting portion 20 and at the corners of the mounting plate 50, respectively. The mounting plate 50 has a rectangular shape that is long in the vertical direction, and the connector fitting portion 20 is disposed at the center of the mounting plate 50.

  The connector fitting part 20 has a cylindrical hood part 21. A plurality of terminal accommodating portions are arranged inside the hood portion 21. These terminal accommodating portions include a pair of left and right terminal accommodating portions 22 disposed on the upper side, a pair of left and right terminal accommodating portions 23 disposed on the middle side, and one terminal accommodating portion 24 disposed on the lower side. Consists of. Each terminal accommodating part 22-24 has front side cylinder part 22A-24A which makes cylindrical shape. Each front side cylinder part 22A-24A has comprised the form which protrudes ahead from the front of the attachment board 50. As shown in FIG. Moreover, each front side cylinder part 22A-24A comprises the form opened ahead, is connected with the internal peripheral surface of the food | hood part 21, and a pair of adjacent front side cylinder parts 22A-24A are also mutually connected.

  As shown in FIG. 2, each terminal accommodating part 22-24 has rear side cylinder part 22B-24B which makes a cylindrical shape. The rear cylinder portions 22B to 24B are configured to open rearward, and are configured to protrude rearward from the back surface of the mounting plate 50. As shown in FIG. 4, the front cylinder part 24A and the rear cylinder part 24B are arranged coaxially and are connected to each other via a partition wall 30 provided between the front cylinder part 24A and the rear cylinder part 24B.

  As shown in FIG. 5, the internal space of the front cylinder portion 24A is a front cavity 24F, and the internal space of the rear cylinder portion 24B is a rear cavity 24R. As shown in FIG. 1, the front cavity 24F has a circular hole shape in front view, and the rear cavity 24R has a circular hole shape in rear view as shown in FIG. As shown in FIG. 5, the opening diameter of the front cavity 24F is slightly smaller than the opening diameter of the rear cavity 24R.

  The partition wall 30 has a circular hole 31 formed in a front view. The insertion hole 31 is configured to penetrate the partition wall 30 in the front-rear direction, and is arranged coaxially with the front cavity 24F. The opening diameter of the insertion hole 31 is about one third of the opening diameter of the front cavity 24F. The front cavity 24F and the insertion hole 31 communicate with each other. A drain hole 32 is formed at the lower end of the partition wall 30 to allow the front cavity 24F and the rear cavity 24R to communicate with each other.

  On the back surface of the partition wall 30, there is provided an inclination suppressing portion 40 that is cylindrical and protrudes backward. This inclination suppressing portion 40 is disposed in the rear cavity 24R, is formed slightly longer than the plate thickness of the partition wall 30 in the front-rear direction, and has an extended insertion hole 41 having a circular hole shape in rear view. The extended insertion hole 41 is arranged coaxially with the inclination suppressing portion 40.

  The extended insertion hole 41 is formed to have the same diameter as the insertion hole 31 of the partition wall 30 and is arranged coaxially with the insertion hole 31. Therefore, the front cavity 24F and the rear cavity 24R communicate with each other through the insertion hole 31 and the expansion insertion hole 41. The outer peripheral surface of the inclination suppression part 40 is distribute | arranged to radial inside rather than the inner peripheral surface of the rear side cylinder part 24B. For this reason, the clearance gap 25 is formed between the outer peripheral surface of the inclination suppression part 40, and the inner peripheral surface of the rear side cylinder part 24B. As shown in FIG. 3, a plurality of connecting walls 26 are disposed in the gap 25. That is, since the inclination suppressing part 40 has a cantilever shape protruding rearward from the back surface of the partition wall 30, if there is no connecting wall 26, the inclination suppressing part 40 may fall toward the gap 25. In that respect, since the inclination suppression part 40 can be equally reinforced from a plurality of directions by arranging the plurality of connecting walls 26 in the gap 25, the inclination suppression part 40 can be prevented from being bent so as to fall down.

  The plurality of connecting walls 26 are arranged at equiangular intervals with the inclination suppressing portion 40 as the center. The connecting wall 26 connects the outer peripheral surface of the inclination suppressing portion 40, the back surface of the partition wall 30, and the inner peripheral surface of the rear cylinder portion 24B. As shown in FIG. 4, the rear surface 26 </ b> R of the connecting wall 26 is arranged so as to be flush with the rear surface 40 </ b> R of the inclination suppressing unit 40 in the front-rear direction. A tapered guide surface 42 is provided around the rear opening edge of the extended insertion hole 41 of the inclination suppressing portion 40.

  As shown in FIG. 6, the male terminal 60 is accommodated inside the terminal accommodating portion 24. The male terminal 60 includes a first connection portion 61 that extends in the axial direction and has a round bar shape, a second connection portion 62 that is disposed behind the first connection portion 61 and has a cylindrical shape, and a first connection portion 61. And an annular flange portion 63 provided around the second connection portion 62. The first connection portion 61 has a smaller diameter than the second connection portion 62. Further, the diameter of the flange portion 63 is slightly smaller than the opening diameter of the rear cavity 24R. Note that a cap 64 made of an insulating material is held at the distal end portion of the first connection portion 61 by press-fitting.

  The 1st connection part 61 is connected with the female terminal provided in the connector for charge. On the other hand, the 2nd connection part 62 is crimped | bonded to the core wire exposed to the terminal of the covered electric wire. The male terminal 60 is inserted into the rear cavity 24R of the terminal accommodating portion 24 from the rear. The first connection portion 61 enters the extended insertion hole 41 while being guided from the rear cavity 24R to the guide surface 42, and then enters the front cavity 24F through the insertion hole 31. Thus, the first connection portion 61 inserted into the front cavity 24F is arranged to protrude forward from the front surface of the partition wall 30.

  By the way, the insertion hole 31 of the partition wall 30 and the extended insertion hole 41 of the inclination suppressing part 40 are configured to have the same diameter and continue in the front-rear direction, and the inclination suppressing part 40 extends from the partition wall 30 to the first connection part 61. Although extending in the axial direction of the first connection portion 61 along the outer peripheral surface, the hole diameter of each of the insertion holes 31 and 41 is slightly larger than the diameter of the first connection portion 61. The reason for setting such a dimensional relationship is to ensure that the first connecting portion 61 is inserted into each of the insertion holes 31 and 41, and to keep the workability of assembling the male terminal 60 well. Therefore, a clearance is set between the outer peripheral surface of the first connecting portion 61 and the inner peripheral surface of each insertion hole 31, 41, and the male terminal 60 may tilt due to this clearance.

  As a first aspect in which the male terminal 60 is inclined, for example, as shown in FIG. 6, a lower portion 31 </ b> A (hereinafter referred to as “first contact portion”) at the opening edge of the front end of the insertion hole 31 and a rear end of the expansion insertion hole 41. In some cases, the first connecting portion 61 is supported by being in contact with the upper portion of the opening edge and the front end upper edge portion (hereinafter referred to as “second contact portion”) 41 </ b> A of the guide surface 42. The first mode is more likely to occur as the clearance between the outer peripheral surface of the first connecting portion 61 and the inner peripheral surfaces of the insertion holes 31 and 41 is smaller.

  Further, as a second mode in which the male terminal 60 is inclined, for example, as shown in FIG. 7, the first connecting portion 61 abuts on the first abutting portion 31A, and the flange portion 63 abuts the back surface 26R of the connecting wall 26. The male terminal 60 may be supported in contact therewith. In addition, the contact part with the flange part 63 in the back surface 26R of the connection wall 26 is called 3rd contact part 26A. The second mode is more likely to occur as the clearance between the outer peripheral surface of the first connecting portion 61 and the inner peripheral surfaces of the insertion holes 31 and 41 is larger.

  Cases in which the second aspect occurs include a case where the diameter of the first connecting portion 61 is finished to be small, a case where the opening diameters of the insertion holes 31 and 41 are finished to be large, and the like. In such a case, since the 3rd contact part 2A exhibits the function of inclination suppression instead of the 2nd contact part 41A, the inclination of the male terminal 60 can be suppressed by the 2nd aspect. In other words, it can be said that the second mode plays a role of complementing the first mode.

  As a result of the inclination angle of the male terminal 60 being minimized, the frictional resistance generated when the male terminal 60 is connected to the female terminal of the charging connector can be lowered, and the charging connector is fitted to the connector 10. The fitting feeling at the time of combining can be kept good.

  As described above, in the present embodiment, the clearance is set between the outer peripheral surface of the first connecting portion 61 and the inner peripheral surface of the insertion hole (the insertion hole 31 and the expansion insertion hole 41). When the connecting portion 61 is inclined, the first connecting portion 61 is supported at two locations of the partition wall 30 and the inclination suppressing portion 40, and the inclination of the male terminal 60 can be suppressed as compared with the case where the male terminal 60 is supported only by the partition wall 30. . That is, when the above clearance is constant, the inclination of the male terminal 60 can be made gentler as the distance between the two contact parts in contact with the male terminal 60 becomes longer. As a result, the distance between the two contact portions (the first contact portion 26A and the second contact portion 41A) in contact with the first connection portion 61 is increased by the length of the inclination suppressing portion 40, and the male terminal 60 is increased. The slope of becomes gentle.

The terminal accommodating portion 24 includes a first cavity (front cavity 24F) in which the first connecting portion 61 is protruded forward from the partition wall 30, and a second cavity (rear cavity 24R) disposed behind the partition wall 30. The inclination suppressing unit 40 may be arranged in the second cavity.
According to such a configuration, the inclination of the male terminal 60 can be suppressed without changing the shape of the first cavity.

It is good also as a structure provided with the connection wall 26 which connects the outer peripheral surface of the inclination suppression part 40, and the inner peripheral surface of a 2nd cavity.
According to such a configuration, since the inclination suppressing part 40 can be reinforced by the connecting wall 26, it is possible to suppress the inclination suppressing part 40 from being bent with respect to the partition wall 30.

A plurality of connecting walls 26 may be provided at equiangular intervals with the inclination suppressing portion 40 as the center.
According to such a configuration, the inclination suppressing portion 40 can be reinforced from a plurality of directions by the plurality of connecting walls 26.

The terminal (male terminal 60) is provided around the first connection portion 61, the second connection portion 62 disposed behind the first connection portion 61, and the first connection portion 61 and the second connection portion 62. It is good also as a structure provided with the open flange part 63. FIG.
According to such a configuration, the inclination of the male terminal 60 can be suppressed by bringing the flange portion 63 into contact with the connecting wall 26. That is, depending on the dimensional variation between the first connecting portion 61 and the inclination suppressing portion 40, a situation where the inclination of the male terminal 60 may increase may occur. Since this is complemented, such a situation can be avoided in advance.

<Other embodiments>
The technology disclosed in this specification is not limited to the embodiments described with reference to the above description and drawings, and includes, for example, the following various contents.
(1) Although the first connecting portion 61 having a round bar shape is illustrated in the above embodiment, the first connecting portion having a square bar shape may be used.

  (2) Although the cylindrical inclination suppression part 40 is illustrated in the said embodiment, it is good also as a rectangular tube-shaped inclination suppression part.

  (3) Although the inclination suppression part 40 which protrudes back from the partition 30 is illustrated in the said embodiment, it is good also as an inclination suppression part which protrudes forward from the partition 30.

  (4) Although a plurality of connection walls 26 are provided in the above embodiment, a continuous connection wall having an annular shape may be provided.

  (5) Although the configuration in which the flange portion 63 is brought into contact with the connecting wall 26 is employed in the above embodiment, the inclination of the male terminal 60 is caused by bringing the flange portion 63 into contact with the inner peripheral surface of the rear cylinder portion 24B. May be suppressed.

  (6) Although the inclination suppression part 40 having the extended insertion hole 41 is illustrated in the above embodiment, the arc-shaped inclination suppression part may be provided only at a position where it abuts on the first connection part 61. The extended insertion hole is not formed.

  (7) Although the charging inlet is exemplified as the connector 10 in the above embodiment, the connector 10 may be applied to a charging connector or a general-purpose connector that is not for charging.

  (8) Although the male terminal is exemplified as the terminal in the above embodiment, a cylindrical female terminal may be applied as the terminal.

DESCRIPTION OF SYMBOLS 10 ... Connector 24 ... Terminal accommodating part 24F ... Front side cavity (1st cavity)
24R ... rear cavity (second cavity)
26 ... Connecting wall 30 ... Bulkhead 31 ... Insertion hole 40 ... Inclination suppression part 41 ... Expansion insertion hole 60 ... Male terminal (terminal)
61 ... 1st connection part 62 ... 2nd connection part 63 ... Flange part

Claims (3)

A connector having a terminal accommodating portion in which a terminal is accommodated,
A first connecting portion extending in the axial direction; a second connecting portion disposed behind the first connecting portion; and a flange portion provided between the first connecting portion and the second connecting portion. A terminal,
A partition wall provided in the terminal accommodating portion and having an insertion hole through which the first connection portion is inserted;
A cylindrical inclination suppressing portion extending in the axial direction along the outer peripheral surface of the first connecting portion from the partition ;
A connecting wall that connects the outer peripheral surface of the tilt suppressing portion and the inner peripheral surface of the cavity disposed behind the partition ;
The connector, wherein the flange portion is formed larger in the radial direction than the inclination suppressing portion so as to be able to contact the rear surface of the connecting wall .   The terminal accommodating portion includes a first cavity in which the first connection portion is arranged to protrude forward from the partition wall, and a second cavity disposed in the rear of the partition wall, The connector according to claim 1, wherein the connector is disposed in the second cavity. 3. The connector according to claim 1 , wherein a plurality of the connection walls are provided at equiangular intervals with the tilt suppression portion as a center.

Images