JP2014053148A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deformation of tabs.SOLUTION: In a hood part 10, entry restriction parts 30 are arranged at positions that oppose the area between pairs of tabs 20 sequentially adjacent in width direction, are arranged zigzag so that these pitches are shifted in width direction at both side in height direction respectively, and protrude. A plurality of chute spaces 300 are continuously formed inside three entry restriction parts 30 adjacently arranged across tabs 20. When a spherical surface object 201 is pushed and dropped so that the spherical surface of the spherical surface object 201 inserted into the hood part 10 comes contact with front edges of three entry restriction parts 30, and apexes 202 on a center axis of the spherical surface object 201 enter into the chute space 300, tabs 20 are arranged at positions different from the apexes 202 in plan view in any of a plurality of chute spaces 300.

Description

  The present invention relates to a connector.

  Patent Document 1 discloses a connector having a cylindrical hood portion that can be fitted to a mating connector. A hood part consists of a back wall and the surrounding wall which protrudes ahead from the front surface. A plurality of tabs arranged in parallel in the width direction are mounted on the back wall. Each tab is disposed so as to protrude forward in the hood portion.

  Also, a plurality of ribs are formed in the hood portion so as to protrude, and a plurality of rib receiving grooves for receiving the ribs are formed in the housing of the mating connector. When the ribs are fitted into the rib receiving grooves, the fitting operation of both housings proceeds smoothly. Interference with the wall surface of the mating connector restricts the fitting operation of both housings.

JP 2011-40327 A

  Since each rib described above is intended to prevent erroneous fitting of the connector, the arrangement of each rib is not particularly regular, and the number of each rib is small, and the positional relationship between each rib and each tab is also related. There was no particular consideration. For this reason, if a foreign object is accidentally inserted into the hood part from the front, the foreign object may slip through the ribs and interfere with the tab, which may deform the tab. In particular, when a spherical body with a hemispherical tip, such as a fingertip, is inserted, the apex portion of the spherical body advances deeper into the inner side of the hood, so the tip of the rib interferes with the apex portion of the spherical body. There was a circumstance that it was easy.

  The present invention has been completed based on the above circumstances, and an object thereof is to prevent the tab from being deformed.

  The connector of the present invention is mounted with a hood part having a peripheral wall protruding forward from the front surface of the back wall and three or more side by side in the width direction with respect to the back wall, and is protruded forward inside the peripheral wall. In the hood portion, the front end is positioned in front of the front end of the tab, and at least three in the width direction are arranged on both sides in the height direction across the tab. And an entry restricting portion arranged in a staggered manner with a pitch shifted in the width direction on each of both sides in the height direction, and in the hood portion, three adjacently arranged with the tab in between A drop space is formed inside the entry restricting portion, and a plurality of the drop spaces are continuously arranged in the width direction. A spherical body is inserted into the hood portion from the front, and the spherical surface of the spherical body is in front. When the spherical body is dropped such that the apex on the central axis of the spherical body advances into the drop space by contacting the front ends of the three entry restriction portions, a plurality of drop spaces In any case, the tabs are characterized in that they are arranged at positions different from the apexes in plan view.

  According to the present invention, when a spherical body is inserted into the hood portion from the front, the spherical surface of the spherical body comes into contact with the front ends of the three adjacent entry restricting portions, and the apex on the central axis of the spherical body falls in the drop space. At this time, since the tab is arranged at a position different from the vertex in plan view, the tab does not interfere with the vertex, and the tab is deformed by a foreign object such as a spherical body. Can be prevented. In particular, since the plurality of entry restricting portions are arranged in a staggered manner at different positions in the width direction from the tabs, with the pitch being shifted in the width direction on both sides of the height direction, In addition to decreasing the diameter of the circle in contact with the entry restricting portion, the tab is disposed at a position away from the apex of the spherical body. As a result, it is possible to more effectively avoid the tab from interfering with the foreign matter.

It is a front view of the connector which concerns on Example 1 of this invention. It is the sectional view on the AA line of FIG. It is sectional drawing of a mating connector. It is sectional drawing of both the connectors in a regular fitting state. It is a front view of the connector of the reference example 1. It is a front view of the connector of the reference example 2.

Preferred embodiments of the present invention are shown below.
The plurality of entry restricting portions arranged on both sides in the height direction each have an alignment region arranged spaced apart at substantially the same pitch in the width direction, and the plurality of entry restricting portions located between the plurality of entry restricting portions The tabs have alignment regions that are spaced apart at substantially the same pitch in the width direction. As a result, the opening width of each drop space is almost the same in the alignment region, so that a drop space with a wide opening width does not occur partially, and the apex of the spherical body advances deeply into the drop space with a wide opening width. Thus, the tab can be prevented from interfering with the spherical body.

  The plurality of entry restriction portions are arranged with a half-pitch phase shifted in the width direction on each of both sides in the height direction. Thereby, the regularity of the arrangement | sequence of each approach control part in an alignment area is ensured.

  Each of the plurality of entry restriction portions has a width dimension that is the same as or larger than each of the plurality of tabs located between the plurality of entry restriction portions arranged on both sides in the height direction. ing. If it carries out like this, since a tab will be protected by the approach control part and it will become difficult to interfere with a foreign material, it can prevent more reliably that a tab deform | transforms.

  A front end of the entry restricting portion has a reverse tapered shape protruding forward toward the dropping space side. If it carries out like this, it can avoid more reliably that the foreign material inserted in the food | hood part is guide | induced to the outer side of a drop space, and interferes with a tab.

<Example 1>
Embodiment 1 of the present invention will be described with reference to FIGS. In the following description, in the front-rear direction, the mutual fitting surface side of the connector and the mating connector is the front.
The connector of this embodiment includes a hood portion 10 made of synthetic resin. As shown in FIGS. 1 and 2, the hood portion 10 includes a back wall 11 arranged along the height direction and the width direction, and a peripheral wall that protrudes forward from the front surface of the back wall 11 and extends in the width direction. 12. A mating connector can be fitted into the hood portion 10 from the front. A pair of cam followers 13 are formed to protrude at both ends in the width direction of the outer surface of the peripheral wall 12. The cam follower 13 has a cylindrical shape and can be engaged with a cam groove 81 formed in a lever 80 of a mating connector described later.

  As shown in FIG. 1, a plurality of conductive metal tabs 20 and plate-like tabs 21 are attached to the back wall 11. The tab 20 and the plate-like tab 21 are configured to protrude forward from the front surface of the back wall 11, and a plurality of tabs 20 and plate-like tabs 21 are arranged in parallel in the width direction on the front surface of the back wall 11. The plate-like tabs 21 have a flat plate shape along the width direction, and are arranged in a pair in the width direction at a substantially central portion in the height direction on the right side in the figure in the hood portion 10.

  The tab 20 has a rectangular pin shape that is elongated in the front-rear direction, and is arranged in two rows in the upper and lower stages in the hood portion 10 and a large number (three or more) in the width direction. Specifically, each tab 20 is arranged at a vertically symmetrical position with a height position slightly above the center of the hood portion 10 in the height direction, and is spaced apart at the same pitch in the height direction and the width direction. Has been. An area where the tabs 20 are aligned is referred to as an alignment area.

  As shown in FIG. 1, a plurality of entry restricting portions 30 arranged in parallel with the tabs 20 are formed in the hood portion 10. Each entry restricting portion 30 is configured to protrude forward from the front surface of the back wall 11 and is integrally connected to the inner surface of the peripheral wall 12 along the front-rear direction. And each entry control part 30 is arrange | positioned in parallel in the width direction on the both sides of the height which pinched | interposed each tab 20, respectively (three or more) in parallel. The front end of each entry restricting portion 30 is located in front of the front end of each tab 20 and is disposed at substantially the same front and rear position.

  Specifically, the entry restriction portions 30 have substantially the same shape, and the inner ends thereof are arranged at substantially the same height position on both sides in the height direction. Further, each entry restricting portion 30 is configured to have substantially the same width over substantially the entire height in the height direction, and the width dimension thereof is sufficiently larger than the width dimension of the tab 20.

  Furthermore, as shown in FIG. 1, the entry restricting portions 30 are spaced apart at the same pitch in the width direction and are shifted from the tabs 20 in the width direction. Specifically, each upper entry restricting portion 30 is disposed at a position facing a pair of upper tabs 20 that are sequentially adjacent in the width direction, and more specifically, between upper tabs 20 that are adjacent in the width direction. Are arranged at substantially the same position in the width direction center and width direction. However, the upper entry restricting portion 30 is not provided at a position facing the pair of upper tabs 20 at the right end of the figure.

  On the other hand, each lower entry restricting portion 30 is shifted from the upper tab 20 by one, and is disposed at a position facing a pair of adjacent tabs 20 in the width direction. Are arranged at substantially the same position in the width direction center and the width direction between the adjacent lower tabs 20. However, the lower entry restricting portion 30 is also provided on the left side of the lower tab 20 at the left end of the figure, and is one more than the upper entry restricting portion 30. As a result, each entry restriction unit 30 is arranged with a pitch shifted in the width direction on both sides in the height direction, and in detail, it is arranged with a half-pitch phase shifted. In addition, the area | region where each entry control part 30 is arranged and arrange | positioned is called an alignment area.

  Further, a second entry restricting portion 31 that is arranged in parallel with each entry restricting portion 30 is formed on the right end side in the hood portion 10. The second entry restricting portion 31 is configured to protrude forward from the front surface of the back wall 11 and is integrally connected to the inner surface of the peripheral wall 12 along the front-rear direction, like each entry restricting portion 30. As shown in FIG. 1, the second entry restricting portion 31 has a narrow base end portion 32 connected to the inner surface of the peripheral wall 12 and the height direction center side of the hood portion 10 (a drop space 300 side to be described later). And a wide end portion 33 facing the rim, as a whole, has a substantially T-shaped cross section, and is arranged in pairs on both sides in the height direction across the plate-like tab 21 on the right side of the figure.

  As shown in FIG. 2, the front ends of the respective entry restricting portions 30 and the second entry restricting portions 31 go to the inside (the center in the height direction of the hood portion 10 and the drop space 300 side described later). Accordingly, the reverse tapered portion 34 gradually protrudes forward. Further, the inner ends of each of the entry restricting portions 30 and the second entry restricting portions 31 are in a form in which the tip is sharpened by a reverse tapered portion 34. In the case of the present embodiment, the inclination angle of the reverse taper portion 34 is set to be substantially the same in each of the entry restriction portions 30 and the second entry restriction portions 31.

  Furthermore, as shown in FIG. 1, on the right side in the hood part 10, a third entry restriction part 35 is formed between each entry restriction part 30 and each second entry restriction part 31. The third entry restricting portion 35 is disposed so as to protrude forward from the front surface of the back wall 11 and surround the plate-like tab 21 on the left side of the drawing, and is not connected to the inner surface of the peripheral wall 12. Specifically, the third entry restricting portion 35 includes a thick vertical wall 36 having a large plate thickness that separates the plate-like tab 21 and the tab 20 and a thick vertical wall 36 that separates the pair of plate-like tabs 21. The thin vertical wall 37 having a smaller plate thickness, and the thick vertical wall 36 and the horizontal wall 38 connected to both upper ends of the thin vertical wall 37 are provided.

As shown in FIG. 3, the mating connector includes a housing 50, a retainer 60, a front mask 70, and a lever 80.
The housing 50 includes a block-shaped housing main body 51 and a cylindrical fitting cylinder portion 52 surrounding the housing main body 51. As shown in FIG. 4, the peripheral wall 12 of the hood part 10 is inserted between the housing main body 51 and the fitting cylinder part 52 from the front. A seal ring 55 is fitted on the outer surface of the housing main body 51. When the seal ring 55 is fitted, the seal ring 55 is elastically compressed between the peripheral wall 12 and the housing main body 51, and a seal between the two connectors can be taken. It has become.

  A plurality of cavities 53 are formed in the housing body 51 at positions corresponding to the tabs 20 and the plate-like tabs 21. As shown in FIG. 3, a female terminal fitting 90 is inserted into each cavity 53 from the rear, and a rubber plug 95 crimped to the female terminal fitting 90 is inserted in close contact therewith. Each female terminal fitting 90 is connected to a terminal portion of the electric wire 100, and each electric wire 100 is drawn backward from the rear surface of the housing body 51.

  As shown in FIG. 3, a retainer mounting portion 54 that communicates with all the cavities 53 is formed in the lower surface of the housing main body 51. The retainer 60 is inserted into the retainer mounting portion 54 and plays a role of locking each female terminal fitting 90 in a retaining state. A relief recess 56 through which the retainer 60 passes is formed in the lower wall of the fitting cylinder portion 52 so as to open. Moreover, the lever 80 is rotatably supported by the both side walls of the fitting cylinder part 52. As shown in FIG. The lever 80 is formed with a pair of cam grooves 81 (partially shown in FIG. 4). When both connectors are shallowly fitted, both cam followers 13 enter both cam grooves 81, and both cam followers 13 slide along the groove surfaces of both cam grooves 81 as the lever 80 is rotated. As a result, both connectors are fitted with a low operating force.

  The front mask 70 includes a front plate 71 that covers the front surface of the housing body 51 and a peripheral plate 72 that protrudes rearward from the periphery of the front plate 71. As shown in FIG. A plurality of tab insertion holes 73 into which the tabs 20 can be inserted are formed at positions corresponding to the cavities 53. Further, the front mask 70 is formed with a plurality of entry restriction receiving grooves 74 into which the entry restriction part 30 and the second entry restriction part 31 are inserted at the time of fitting. Each entry restriction receiving groove 74 is configured to extend in the front-rear direction from the front plate 71 to the peripheral plate 72. Each entry restriction receiving groove 74 is arranged in parallel in the width direction at a position corresponding to each entry restriction part 30 and each second entry restriction part 31. In addition, a portion into which the lower wall of the retainer 60 is inserted is opened on the lower surface of the peripheral plate 72, and a plurality of entry restriction receiving grooves 74 are continuously formed on the lower wall of the retainer 60 from the peripheral wall 12 side. Has been.

  By the way, in the case of the present embodiment, since each entry restriction receiving groove 74 is formed in the peripheral wall 12, the front mask 70 is expanded in the radial direction so as to ensure the plate thickness of the peripheral wall 12. There is a circumstance that the opening size of the receiving hood portion 10 is also increased. As a result, foreign substances such as fingers are likely to enter the hood portion 10 from the front, and the tabs 20 and the plate-like tabs 21 may be deformed by the foreign substances.

  In view of the above, each of the entry restriction sections 30, each of the second entry restriction sections 31, and each of the third entry restriction sections 35 (hereinafter referred to as each entry restriction section 30) has such a foreign substance as each tab 20 and each plate-like tab 21. The arrangement is determined in consideration of the positional relationship with each tab 20 or the like so as not to contact (hereinafter referred to as each tab 20 or the like).

  Specifically, as shown in FIG. 2, a cylindrical member 200 is prepared as a foreign object, and the position of each entry restricting portion 30 is defined so that the tip of the cylindrical member 200 does not contact each tab 20 or the like. The distal end portion of the cylindrical member 200 is, for example, imitating a fingertip or a jig, and is configured as a spherical body 201 having a hemispherical spherical surface. The vertex 202 is located on the central axis of the spherical surface of the spherical body 201, and when the spherical body 201 is inserted into the hood part 10, the vertex 202 is the back side of the hood part 10 (a drop described later). The space 300) is most deeply advanced.

  As shown in FIG. 1, when a cylindrical member 200 is inserted into the hood portion 10 from the front between the three entry restricting portions 30 arranged adjacent to each other with the upper and lower two tabs 20 interposed therebetween, a spherical surface is obtained. A drop space 300 into which the body 201 is dropped is formed. A similar drop space 300 is also formed on the inner surface of the peripheral wall 12 and the inside defined by the second entry restriction portion 31 and the third entry restriction portion 35, and each drop space 300 is continuous in the width direction in the hood portion 10. Are arranged. For this reason, the spherical body 201 is sequentially dropped into each drop space 300 from one end to the other end in the width direction in the hood portion 10, and is movable in the width direction while moving up and down.

  In the alignment region, as shown in FIG. 1, the spherical body 201 is dropped into the drop space 300 in a state where the spherical surface is supported at each front end of the three entry restriction portions 30. The spherical body 201 has a spherical surface supported by the front ends of the second and third entry restricting portions 31 and 35 and is dropped into another drop space 300. At this time, the apex 202 of the spherical body 201 does not come into contact with each tab 20 or the like in any drop space 300. That is, in this embodiment, when the spherical body 201 is dropped into each drop space 300, the apex 202 of the spherical body 201 and the front end of each tab 20, etc. are arranged at different positions in plan view. Is set to Further, in the present embodiment, when the spherical body 201 is dropped into each drop space 300, each tab 20 or the like is secured so as not to contact any part of the spherical body 201 including the apex 202. Yes.

  Here, FIG. 5 is the same as the present embodiment in that each entry restricting portion 30A is arranged at a position different from each of the upper and lower two tabs 20 in the width direction, but each entry restricting portion 30A has a height. A reference example 1 different from the present embodiment is shown in that it is arranged at the same position in the width direction on both sides in the direction. In the case of the reference example 1, the drop space 300A is defined between the four entry restriction portions 30A arranged adjacent to each other with the tabs 20 interposed therebetween, and the spherical surface of the spherical body 201 is supported by the front ends of the four entry restriction portions 30A. Will be. Then, the diameters of the circles in contact with the respective front ends of the four entry restriction portions 30A are larger than the diameters of the circles in contact with the respective front ends of the three entry restriction portions 30 in the present embodiment. The advance amount of the vertex 202 is also larger than in the case of the present embodiment. For this reason, the reference example 1 shown in FIG. 5 has a situation that it is difficult to set to avoid the interference between the tab 20 and the spherical body 201 as compared with the present embodiment.

  Moreover, FIG. 6 is the same as the present embodiment in that each entry restricting portion 30B is arranged with a pitch shifted in the width direction at each of both sides in the height direction. A reference example 2 different from the present embodiment is shown in that the tabs 20 are arranged at the same position in the width direction with the tabs 20 in the upper and lower two stages. In the case of the reference example 2, as in the present embodiment, the drop space 300 is defined between the three entry restricting portions 30B arranged adjacent to each other with the tabs 20 interposed therebetween, and the spherical surface of the spherical body 201 is the three entry restricting portions 30B. It will be supported by each front end.

  However, in the reference example 2, the tab 20 is positioned on the linear axis S1 in the height direction connecting the apex 202 of the spherical body 201 dropped into the drop space 300 and the upper entry restriction portion 30B in plan view. It is supposed to be. For this reason, the linear distance connecting the vertex 202 and the tab 20 tends to be short. Therefore, in Reference Example 2, there is a situation that it is difficult to set to avoid interference between the tab 20 and the spherical body 201.

  In this regard, in the present embodiment, as shown in FIG. 1, the tab 20 is positioned away from the position on the linear axis S in the height direction connecting the apex 202 and the upper entry restricting portion 30. Will be located sufficiently away from the vertex 202. As a result, compared with the reference examples 1 and 2, the present embodiment can be easily set to avoid interference between the spherical body 201 and the tab 20 and can effectively prevent the tab 20 from being deformed. Yes.

  In addition, according to the present embodiment, each entry restriction portion 30 has an alignment region that is spaced apart at substantially the same pitch in the width direction, and between the entry restriction portions 30 arranged on both sides in the height direction. Since the tabs 20 located at the same position also have the alignment regions that are spaced apart at substantially the same pitch in the width direction, the drop spaces 300 in the alignment region can be aligned with those having substantially the same opening width. it can. Accordingly, the drop space 300 having a wide opening width is not partially generated, and the apex 202 of the spherical body 201 advances deeply into the drop space 300 having a wide opening width, and the tab 20 interferes with the spherical body 201. It can be avoided.

  In addition, since each entry restricting portion 30 is arranged with a half pitch phase shifted in the width direction on each of both sides in the height direction, the regularity of the arrangement of each entry restricting portion 30 in the alignment region is also ensured.

  Further, since each of the entry restriction portions 30 has a width dimension larger than that of each tab 20 located between the entry restriction portions 30 arranged on both sides in the height direction, each of the tabs 20 is prevented from entering. It is protected by the part 30 and hardly interferes with foreign matter. As a result, each tab 20 can be more reliably prevented from being deformed.

  Furthermore, since the front end of each entry restricting portion 30 is a reverse tapered portion 34 that protrudes forward toward the drop space 300, foreign matter inserted into the hood portion 10 is outside the drop space 300. It is possible to avoid the interference with the tab 20 more reliably.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following aspects are also included in the technical scope of the present invention.
(1) At least one of the second entry restriction part and the third entry restriction part may be omitted.
(2) Each entry restricting section may be configured with the same width as each tab.
(3) At least one of the entry restricting portions may be disposed away from the inner surface of the peripheral wall. If it carries out like this, it can prevent that a sink mark arises in a surrounding wall at the time of shaping | molding, or a surrounding wall inclines.
(4) In the inner surface of the peripheral wall, a hollow portion extending in the front-rear direction is recessed at a position opposite to each entry restriction portion (a position where each entry restriction portion is back-to-back). May be. Also by this, it is possible to prevent the peripheral wall from sinking or the peripheral wall from being inclined during molding.
(5) In the configuration of (4), the outer surface of the peripheral wall may be formed with a drainage portion that extends in a direction that crosses and communicates with each lightening portion and that opens at both ends in the extending direction. . If the hollow portion is formed in a concave shape on the outer surface of the peripheral wall, there is a situation that water easily collects in the hollow portion. It is possible to prevent the accumulation of water in the water.

DESCRIPTION OF SYMBOLS 10 ... Hood part 11 ... Back wall 12 ... Peripheral wall 20 ... Tab 30 ... Entrance restriction part 34 ... Reverse taper part 201 ... Spherical body 202 ... Vertex 300 ... Dropping space

Claims (5)

A hood with a peripheral wall protruding forward from the front of the back wall;
Three or more tabs that are mounted side by side in the width direction with respect to the back wall, and are arranged to protrude forward inside the peripheral wall;
In the hood portion, the front end is located forward of the front end of the tab, and at least three in the width direction are arranged on both sides in the height direction across the tab, and further, at a position different from the tab in the width direction, With an entry restricting section arranged in a staggered manner with the pitch shifted in the width direction on each of both sides in the height direction,
In the hood part, a drop space is formed inside the three entry restriction parts arranged adjacent to each other with the tab interposed therebetween, and a plurality of the drop spaces are continuously arranged in the width direction,
A spherical body is inserted into the hood portion from the front, the spherical surface of the spherical body abuts against the front ends of the three entry restricting portions, and the vertex on the central axis of the spherical body advances into the drop space. In addition, when the spherical body is dropped, the tab is arranged at a position different from the apex in the plan view in any of the drop spaces. The plurality of entry restricting portions arranged on both sides in the height direction each have an alignment region arranged spaced apart at substantially the same pitch in the width direction,
2. The connector according to claim 1, wherein the plurality of tabs positioned between the plurality of entry restriction portions have alignment regions that are spaced apart from each other at substantially the same pitch in the width direction.   The connector according to claim 2, wherein the plurality of entry restricting portions are arranged with a half pitch phase shifted in the width direction on each of both sides in the height direction.   Each of the plurality of entry restriction portions has a width dimension that is the same as or larger than each of the plurality of tabs located between the plurality of entry restriction portions arranged on both sides in the height direction. The connector according to any one of claims 1 to 3, wherein the connector is provided.   5. The connector according to claim 1, wherein a front end of the entry restricting portion has a reverse tapered shape protruding forward toward the dropping space side.

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