JP2017147103A - Non-waterproof connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a foreign matter from intruding from a terminal insertion port into a cavity, and short-circuiting the adjoining terminal fittings.SOLUTION: In a non-waterproof connector 10 including a connector housing 20 provided with multiple cavities 25 capable of inserting terminal fittings 40 from terminal insertion ports 25A, and a cover member 50 attached to the connector housing 20 so as to cover the multiple terminal insertion ports 25A, the connector housing 20 is provided with projection walls 33 projecting from bulkheads 31 partitioning respective cavities 25 toward the cover member 50 side. The cover member 50 is provided with rib walls 65 projecting toward the projection wall 33 side, the tip of the projection wall 33 and the tip of the rib wall 65 are overlapping in the overlapping surfaces 33A, 65A, and the arrangement direction of the cavities 25 crosses the overlapping surfaces 33A, 65A.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a non-waterproof connector.

  A non-waterproof connector without a waterproof rubber plug or the like may be used in oil such as lubricating oil in which foreign matter such as iron powder is floating. As an example of such a connector, there is a connector described in JP2013-109893A (Patent Document 1 below). In this connector, the retainer locks the terminal fitting accommodated in the cavity from the rear opening of the connector housing. In such a connector, since the retainer mounting portion for mounting the retainer provided in the connector housing communicates between the cavities, foreign matters such as iron powder enter from the gap between the connector housing and the retainer and are adjacent to each other. There is a risk of a short circuit between the terminal fittings housed in the cavity. Therefore, in this connector, in order to prevent a short circuit between the terminal fittings, a protruding wall that protrudes from the retainer mounting portion so as to increase the distance of the path from one terminal fitting to the other terminal fitting to the partition wall that partitions each cavity Is provided.

JP 2013-109893 A

  In the connector described in Japanese Patent Laid-Open No. 2013-109893 (Patent Document 1), measures against foreign matter intrusion between the retainer mounting portion of the connector housing and the retainer are taken, but the rear opening of the cavity (terminal insertion port) Measures against intrusion of foreign matter from the side are not taken. Therefore, there is a possibility that adjacent terminal fittings may be short-circuited by foreign matter that has entered from the terminal insertion port.

  The non-waterproof connector disclosed in the present specification is attached to the connector housing so as to cover the plurality of terminal insertion ports, and a connector housing provided with a plurality of cavities into which terminal fittings can be inserted from the terminal insertion ports. A non-waterproof connector provided with a cover member, wherein the connector housing is provided with a protruding wall that protrudes toward the cover member side from a partition wall that divides the cavities, A rib wall projecting toward the projecting wall side is provided, and a tip end portion of the projecting wall and a tip end portion of the rib wall overlap each other on an overlapping surface, and the arrangement direction of the cavities and the overlapping surface Intersect.

  According to such a configuration, the cover member is attached to the terminal insertion port side, so that entry of foreign matter from the terminal insertion port into the cavity can be suppressed. In addition, since the tip of the protruding wall and the tip of the rib wall overlap with each other on the overlapping surface, and this overlapping surface intersects the direction in which the cavities are arranged, it is assumed that foreign matter has entered between the cover member and the connector housing. However, the foreign matter cannot enter so as to straddle between adjacent cavities. Therefore, it is possible to prevent a short circuit due to contamination of foreign matter that has entered the cavity from the terminal insertion port.

An embodiment of the non-waterproof connector disclosed in this specification may have the following configuration.
On the cavity side of the projecting wall, a projecting base that is wider than the tip is provided, and on the opposite side of the rib wall from the projecting wall, a rib base that is wider than the tip is provided. The tip of the rib wall may be abutted against the protruding base, while the tip of the protruding wall may be abutted against the rib base.

  In such a configuration, the rib wall and the projecting wall are configured to abut against each other while overlapping on the overlapping surface. Therefore, the distance of the path | route which goes along the wall surface and protrusion wall of a cavity from one terminal metal fitting among adjacent terminal metal fittings to the other terminal metal fitting increases. Therefore, it is possible to further prevent a short circuit between adjacent terminal fittings due to foreign matter mixed into the cavity.

  Further, the cover member has an opening on at least one side in a direction orthogonal to a direction in which the electric wire connected to the terminal fitting is drawn, and the lid is orthogonal to the mounting direction of the cover member in the opening. The lid portion is provided with a protruding rib portion protruding in the mounting direction of the lid portion, and a tip end portion of the protruding rib portion and the rib wall of the cover member are provided. It is good also as a structure which overlaps with the front-end | tip part of the said protrusion wall, and comprises the said overlap surface, while a front-end | tip part overlaps with the mounting direction of the said cover part.

  In such a configuration, it is possible to further suppress the entry of foreign matter into the cavity by attaching the lid to the opening provided in the cover member. In addition, since the protruding wall, the rib wall, and the protruding rib portion are three-dimensionally combined and overlapped, even if a foreign object enters between the protruding rib portion and the protruding wall or rib wall, Intrusion of foreign matter can be prevented. Therefore, it is possible to prevent a short circuit due to foreign matter entering from the terminal insertion port in the adjacent terminal fitting.

  According to the non-waterproof connector disclosed in the present specification, it is possible to prevent a short circuit between adjacent terminal fittings when a foreign object enters the cavity from the terminal insertion port.

The front view of the non-waterproof connector in Embodiment 1 Side view of non-waterproof connector Sectional drawing in the III-III position in FIG. Sectional drawing in the IV-IV position in FIG. Sectional drawing in the VV position in FIG. Sectional drawing in the VI-VI position in FIG. Front view of cover member Exploded sectional view of the non-waterproof connector at the position of FIG. FIG. 5 is an exploded sectional view of the non-waterproof connector at the position shown in FIG. Front view of non-waterproof connector in embodiment 2 Side view of non-waterproof connector Sectional drawing in the XII-XII position in FIG. Sectional drawing in the XIII-XIII position in FIG. Sectional drawing in the XIV-XIV position in FIG. Front view of cover member Sectional view of the connector housing at the position of FIG. Exploded front view of non-waterproof connector Exploded side view of non-waterproof connector FIG. 12 is an exploded cross-sectional view of the non-waterproof connector at the position shown in FIG. Exploded sectional view of the non-waterproof connector at the position of FIG. Exploded perspective view showing outline of overlapping structure with protruding wall The perspective view which shows the outline in the state with which the rib wall and the protrusion rib part overlapped The perspective view which shows the outline in the state in which the protrusion wall, the rib wall, and the protrusion rib part overlapped

<Embodiment 1>
Embodiments will be described with reference to FIGS. 1 to 9.
The non-waterproof connector 10 of this embodiment is used in oil such as lubricating oil in which foreign matter such as iron powder is suspended, and as shown in FIGS. 1 and 2, a connector housing 20 and a cover member 50. This non-waterproof connector 10 is a female connector and can be fitted to a male connector which is a mating connector. In the following description, regarding the front-rear direction, the left side of FIG. 2 (the fitting direction of the non-waterproof connector 10) is the front side, and the right side of FIG. Further, with respect to the vertical direction, with reference to FIGS. 1 and 2, the upper side of FIG. 1 is the upper side and the lower side of FIG. 1 is the lower side.

  The connector housing 20 is made of a synthetic resin, and as shown in FIGS. 1 and 2, the connector housing 20 has a substantially rectangular parallelepiped shape as a whole. A lock arm 21 that is cantilevered from the front end of the connector housing 20 to the rear is formed on the upper surface of the connector housing 20. The lock arm 21 is provided at a substantially central position in the width direction (left-right direction) of the connector housing 20, extends to the rear end position of the connector housing 20, and the rear end side can be bent in the vertical direction. A pair of lock arm protection walls 21 </ b> A for protecting the lock arm 21 is provided so as to protrude upward from both side surfaces of the rear end portion of the connector housing 20.

  Further, a flange portion 23 is provided on the lower edge of the rear end of the connector housing 20 as shown in FIGS. The flange portion 23 is provided such that the lower surface of the rear end portion of the connector housing 20 becomes thicker downward. The flange portion 23 has a rear end position in front of the rear end edge of the connector housing 20 and is positioned in front by a dimension in the front-rear direction of a rib wall 65 of the cover member 50 described later.

  In the connector housing 20, as shown in FIGS. 1 and 3, a plurality of cavities 25 are provided side by side in the height direction (vertical direction) and in the width direction (horizontal direction). Each cavity 25 penetrates in the front-rear direction, and the terminal fitting 40 can be inserted into the cavity 25 from the rear terminal insertion port 25A, and the mating terminal fitting can be inserted from the front. In addition, a lance 27 is provided on the lower surface of each cavity 25 to primarily lock the terminal fitting 40 inserted in the normal position. The lance 27 is cantilevered from the substantially central position in the front-rear direction of each cavity 25 toward the front, and can be elastically deformed in the vertical direction.

  As shown in FIG. 3, the terminal metal fitting 40 is a female terminal metal fitting elongated in the front-rear direction formed by bending a conductive metal plate. The terminal fitting 40 includes a rectangular tubular connecting portion 41 and a barrel portion 43 connected to the electric wire 45. The barrel portion 43 includes a wire barrel portion 43A for caulking the core wire exposed at the end of the electric wire 45, and an insulation barrel portion 43B for caulking the insulation coating of the electric wire 45.

  As shown in FIGS. 3 and 5, the connector housing 20 is provided with a retainer mounting portion 29 for mounting a retainer 37 described later. The retainer mounting portion 29 is provided behind the lance 27 at a position where the wire barrel portion 43A of the terminal fitting 40 is disposed, and communicates with the cavities 25 arranged in the width direction. Further, the retainer mounting portion 29 is opened on the lower surface and both sides of the connector housing 20.

  In the connector housing 20, as shown in FIGS. 5 and 6, the cavities 25 adjacent in the width direction are partitioned by a plurality of partition walls 31 (an example of a “protruding base”). 40 are insulated from each other. A protruding wall 33 that protrudes rearward from the rear end surface 31A of the partition wall 31 is provided. Between each protrusion wall 33, it is in the state opened to the downward direction and back.

  The protruding wall 33 has a width that is approximately half the width of the rear end surface 31A of the partition wall 31. The upper end position of the protruding wall 33 is substantially the same as that of the partition wall 31, and the lower end position protrudes below the dimension of the partition wall 31 and is substantially the same as the lower end position of the flange portion 23. Further, the protruding wall 33 protrudes rearward to substantially the same position as the rear end position of the lock arm 21. Further, a side surface on the rib wall 65 side described later of the protruding wall 33 is an overlapping surface 33 </ b> A that overlaps the rib wall 65. The rear end surface of the protruding wall 33 is an abutting surface 33B that abuts against a rib base 67 described later. Further, the side surface opposite to the rib wall 65 to be described later of the protruding wall 33 is flush with the partition wall 31, and the front end portion thereof is a tapered surface 33 </ b> C that becomes narrower toward the front end side (rear side). It has become.

  As shown in FIGS. 5 and 6, a locking projection 35 for locking the cover member 50 is provided on the side surface of the rear end portion of the connector housing 20. The locking projections 35 are formed by projecting in a claw shape outward from both side surfaces of the connector housing 20. Further, the locking protrusion 35 is provided at a height position substantially the same as the height position of each cavity 25, and is provided at a position where the protruding wall 33 protrudes at the rear end portion of the connector housing 20.

  The retainer 37 is made of synthetic resin, and as shown in FIGS. 3 and 5, is inserted upward from the opening of the retainer mounting portion 29 to secondary-lock the terminal fitting 40. The retainer 37 can be fitted into the retainer mounting portion 29 almost tightly.

  The cover member 50 is made of a synthetic resin, and as shown in FIGS. 4 and 7, the rear wall portion 51 located behind the terminal insertion port 25 </ b> A and the front wall portion 51 protrudes forward from both ends of the rear wall portion 51. And a pair of side wall portions 53. The cover member 50 has a substantially U-shape in plan view as a whole by the rear wall portion 51 and the pair of side wall portions 53, and is open in the vertical direction. The upper half of the cover member 50 is provided with an electric wire insertion portion 55 from which the electric wire 45 can be drawn upward. The lower half of the cover member 50 has a rib wall 65 protruding toward the front side and A rib base 67 is provided.

  As shown in FIGS. 3 and 4, the electric wire insertion portion 55 is configured such that the upper portion of the rear wall portion 51, the side wall portion 53 on the rear end side upper portion, and the front wall portion 57 parallel to the rear wall portion 51 are integrated. Is provided. The front wall portion 57 is provided at a substantially central position in the front-rear direction of the cover member 50 so as to connect the pair of side wall portions 53. And the electric wire penetration part 55 is opened up and down in the state enclosed by each wall part 51,53,57, and the joint part of each wall part 51,53,57 is made into R shape, The inner surface has a substantially long hole shape in plan view. Further, the wire insertion portion 55 protrudes upward from the other side wall portion 53, and the upper end position of the wire insertion portion 55 is substantially the same position as the upper end position of the lock arm 21 of the connector housing 20.

  As shown in FIGS. 2 and 4, the side wall 53 includes a thin portion 53 </ b> A that overlaps the outer surface of the connector housing 20, and a thick portion that is thick enough to add up the thickness of the thin portion 53 </ b> A and the side surface of the connector housing 20. 53B. The side wall portion 53 protrudes forward to a position that covers the flange portion 23 of the connector housing 20. The thin wall portion 53 </ b> A of the side wall portion 53 is provided with a locking hole 59 that fits with the locking protrusion 35 provided at the rear end position of the connector housing 20. The locking hole 59 is substantially rectangular and penetrates in the thickness direction. The inner dimension in the vertical direction of the locking hole 59 is substantially the same as the outer dimension in the vertical direction of the locking protrusion 35, and the inner dimension in the front-rear direction of the locking hole 59 is the front and rear of the locking protrusion 35. It is slightly larger than the outer dimension in the direction.

  As shown in FIGS. 2 and 7, the guide wall 61 protrudes forward from the thick portion 53 </ b> B of the side wall portion 53. The guide wall 61 projects forward from the tip position of the entire side wall 53. The guide wall 61 can be inserted into a notch 39 provided on the side surface of the rear end of the connector housing 20. When the guide wall 61 is inserted into the notch 39, the guide wall 61 is flush with the side of the connector housing 20. It has become. The guide wall 61 has a tapered tip and is easily inserted into the notch 39. Further, as shown in FIGS. 6 and 7, the front wall portion 57 is provided with a sandwiching wall 63 that sandwiches the lock arm protection wall 21 </ b> A with the side wall portion 53. The sandwiching wall 63 projects forward from the front wall portion 57 to a position substantially the same as the front end position of the side wall portion 53.

  Further, as shown in FIGS. 5 and 7, a rib base 67 protrudes from the lower side of the wire insertion portion 55 of the rear wall portion 51. The rib bases 67 are provided at equal intervals at the same position as the partition wall 31 of the connector housing 20. The rib base 67 has substantially the same width as the rear end portion of the partition wall 31. A rib wall 65 protrudes forward from the front end surface 67 </ b> A of the rib base 67. The rib wall 65 has approximately half the width of the rib base 67, and the lower end position of the rib wall 65 is substantially the same as the lower end position of the rear wall part 51 and the side wall part 53. The rib wall 65 is substantially the same as the vertical dimension and position of the protruding wall 33. The side surface of the rib wall 65 opposite to the protruding wall 33 is flush with the rib base 67. Further, the side surface of the rib wall 65 on the protruding wall 33 side is an overlapping surface 65 </ b> A that overlaps the protruding wall 33. The front end surface of the rib wall 65 is an abutting surface 65 </ b> B that abuts against the partition wall 31.

Next, an example of the assembly procedure of the non-waterproof connector 10 will be described.
First, the terminal fitting 40 and the electric wire 45 are passed through the electric wire insertion portion 55 of the cover member 50 first. The terminal fitting 40 to which the electric wire 45 is connected is inserted from above the electric wire insertion portion 55, and the terminal fitting 40 is pulled out from the lower side of the cover member 50. At this time, since the lower side of the cover member 50 and the lower front of the wire insertion portion 55 are open, the terminal fitting 40 can be easily pulled out. In the present embodiment, since the rear wall 51 is provided in the rear in the direction in which the electric wire 45 is drawn out from the connector housing 20, the electric wire 45 is bent in the cover member 50 and drawn upward. At this time, since the electric wire 45 is positioned by the electric wire insertion portion 55, there is no possibility that the electric wire 45 interferes with the lock arm 21 and the like.

  Next, the terminal fitting 40 connected to the electric wire 45 passed through the cover member 50 is inserted into each cavity 25 from the terminal insertion port 25A. At this time, since the direction in which each cavity 25 extends (front-rear direction) and the direction in which the wire insertion portion 55 opens (vertical direction) are orthogonal to each other, the electric wire 45 is approximately 90 degrees at the lower end position of the wire insertion portion 55. The terminal fitting 40 is inserted into the cavity 25 by bending. Further, since one surface of the protruding wall 33 is provided with the tapered surface 33C, the terminal fitting 40 can be easily inserted into the terminal insertion port 25A. Then, in a state where the terminal fitting 40 is inserted into the cavity 25 and is primarily locked by the lance 27 at the normal position, the retainer 37 is pushed upward in the retainer mounting portion 29 and the terminal fitting 40 is secondarily locked. To do.

  The cover member 50 is attached to the connector housing 20 from the rear in a state where the terminal fitting 40 is locked at the regular position in the connector housing 20. By inserting the guide wall 61 of the cover member 50 into the notch 39, the vertical position of the cover member 50 is positioned. Then, the cover member 50 is further pushed forward, and the cover member 50 is fixed to the connector housing 20 in a state where the locking projection 35 is locked in the locking hole 59. At this time, the lock arm protection wall 21 </ b> A of the connector housing 20 is sandwiched between the side wall portion 53 of the cover member 50 and the sandwiching wall 63.

  When the cover member 50 and the connector housing 20 come close to a predetermined position, the abutting surface 33B of the protruding wall 33 of the connector housing 20 abuts against the front end surface 67A of the rib base 67. At the same time, the abutment surface 65B of the rib wall 65 of the cover member 50 abuts on the rear end surface 31A of the partition wall 31, and the forward movement of the cover member 50 is stopped. Thus, when the cover member 50 is attached to the connector housing 20, the terminal insertion opening 25 </ b> A that is the rear opening of the cavity 25 is covered by the cover member 50. In particular, the rear, which is the opening direction of the terminal insertion opening 25A, is integrally covered with the rear wall 51, so that the entry of foreign matter into the cavity can be suppressed.

  Further, when the cover member 50 is attached to the connector housing 20, the protruding wall 33 and the rib wall 65 come into contact with each other such that the overlapping surfaces 33A and 65A overlap each other. The overlapping surfaces 33A and 65A are surfaces extending in the front-rear and up-down directions, and the overlapping surfaces 33A and 65A intersect the alignment direction (width direction) of the cavities 25. Therefore, even if a foreign object enters between the cover member 50 and the connector housing 20, the foreign object cannot enter between the adjacent cavities 25.

  The protruding wall 33 of the connector housing 20 and the rib wall 65 of the cover member 50 are overlapped with each other by overlapping surfaces 33A and 65A, the abutting surface 33B abuts the front end surface 67A of the rib base 67, and the abutting surface 65B is a partition wall. 31 abuts against the rear end surface 31A. Therefore, the distance of the path | route which passes along the wall surface (wall surface of the cavity 25) and the protrusion wall 33 from one terminal metal fitting 40 among the adjacent terminal metal fittings 40 and the other terminal metal fitting 40 increases, and an adjacent terminal A short circuit between the metal fittings 40 can be prevented.

  As described above, in the present embodiment, the cover member 50 is attached to the terminal insertion port 25A side, so that the entry of foreign matter from the terminal insertion port 25A into the cavity 25 can be suppressed. In addition, since the protruding wall 33 and the rib wall 65 overlap at the overlapping surfaces 33A and 65A, and the overlapping surfaces 33A and 65A intersect the direction in which the cavities 25 are arranged, temporarily between the cover member 50 and the connector housing 20 Even if a foreign object enters, the foreign object cannot enter between the adjacent cavities 25. Further, the protruding wall 33 and the rib wall 65 are configured to abut against each other while overlapping on the overlapping surfaces 33A and 65A. Therefore, the distance of the path | route from the one terminal metal fitting 40 among the adjacent terminal metal fittings 40 to the wall surface of the partition 31 and the protrusion wall 33 and to the other terminal metal fitting 40 increases. Therefore, it is possible to prevent a short circuit due to contamination of foreign matter that has entered the cavity 25 from the terminal insertion opening 25A.

<Embodiment 2>
Next, Embodiment 2 will be described with reference to FIGS.
The non-waterproof connector 110 according to the second embodiment is different from the first embodiment in that a lid 170 is provided below the cover member 150. In addition, about the member and site | part which have the same function as Embodiment 1, description is abbreviate | omitted or simplified by attaching | subjecting the same code | symbol. The vertical direction is the same as that in the first embodiment.

  Since the connector housing 120 is the same as that of the first embodiment except for the shape of the protruding wall 133, the description other than the protruding wall 133 is omitted. As illustrated in FIGS. 19 and 20, the protruding wall 133 protrudes rearward from the rear end surface 31 </ b> A of the partition wall 31. The protruding wall 133 has a width that is approximately half the width of the rear end surface 31A of the partition wall 31. The upper end position of the protruding wall 133 is substantially the same as that of the partition wall 31, and the lower end position of the protruding wall 133 protrudes below the dimension of the partition wall 31 and is higher than the lower end position of the flange portion 23. Further, the protruding wall 133 protrudes rearward to substantially the same position as the rear end position of the lock arm 21. Further, the protruding wall 133 includes an overlapping surface 133A, an abutting surface 133B, and a tapered surface 133C.

  As shown in FIGS. 12 and 15, the cover member 150 includes a rear wall portion 151, a pair of side wall portions 153, and a front wall portion 57. Further, the upper half portion of the cover member 50 is an electric wire insertion portion 55, and a rib wall 165 and a rib base portion 167 protruding toward the front side are provided in the lower half of the cover member 50.

  As shown in FIGS. 15 and 18, the side wall portion 153 protrudes forward to a position covering the flange portion 23 of the connector housing 120. The side wall 153 is provided with a locking hole 59 that fits into the locking protrusion 35, a guide wall 61, and an engaging protrusion 169 that engages with a lid 170 described later. The engagement protrusion 169 protrudes outward from the side wall part 153, and is an inclined surface whose protrusion dimension decreases as the lower surface goes downward.

  As shown in FIGS. 15 and 20, a rib base portion 167 protrudes from the lower side of the wire insertion portion 55 of the rear wall portion 151. The rib base portions 167 are provided at the same positions as the partition walls 31 of the connector housing 20 at equal intervals, and have substantially the same width as the rear end portions of the partition walls 31. As shown in FIGS. 15 and 21, the rib base 67 has a stepped bottom surface. The rib base 67 can be divided into one side 167B and the other side 167C with a substantially center in the width direction as a boundary, and the lower end position of the one side 167B is lower than the other side 167C. A step surface 167 </ b> D is exposed at the lower end of the base 167. Note that the lower end position of the rib base portion 167 is positioned above the lower end position of the side wall portion 153 and the like by the protruding rib portion 181 described later.

  A rib wall 165 protrudes forward from the front end surface 167A of the rib base 167. The rib wall 165 has a width that is approximately half that of the rib base 167 and is equal to one side 167B of the rib base 167. Further, the lower end position of the rib wall 165 is the same as the lower end position of one side 167B of the rib base portion 167, and is located below the lower end position of the protruding wall 133. The side surface of the rib wall 165 on the protruding wall 133 side is an overlapping surface 165A that overlaps the protruding wall 133. The front end surface of the rib wall 165 is an abutting surface 165B that abuts against the partition wall 31.

  As shown in FIGS. 17 and 18, the lid 170 is attached to the cover member 150 so as to cover the lower opening 150 </ b> A (see FIG. 19) of the cover member 150. The lid portion 170 includes a bottom plate portion 171 and a pair of arm portions 173 extending upward from the side end portion of the bottom plate portion 171. The bottom plate portion 171 has a substantially rectangular flat plate shape, and the dimensions in the front-rear direction and the width direction are substantially the same as the outer dimensions of the cover member 150.

  The arm portion 173 protrudes upward from the rear end of the side surface of the bottom plate portion 171, and the inner surface thereof contacts the outer surface of the side wall portion 153 of the cover member 150. The arm portion 173 is provided with an engagement hole 175 that engages with the engagement protrusion 169 at the center position in the front-rear direction. The engagement hole 175 opens so as to extend upward from the lower end position of the arm portion 173, and has an inner dimension in the front-rear direction that is substantially the same as the outer dimension of the engagement protrusion 169. When the upper end hole edge of the engagement hole 175 is caught by the engagement protrusion 169, the engagement hole 175 is engaged with the engagement protrusion 169.

  Further, as shown in FIGS. 17 and 21, the lid portion 170 is provided with a protruding rib portion 181 that protrudes from the bottom plate portion 171 in the mounting direction (upward) of the lid portion 170. The protruding rib portion 181 has a substantially columnar shape (step shape) having a substantially L shape when viewed from the front, and has an uneven shape that can be fitted to the rib base portion 167. The rear end position of the protruding rib portion 181 is the same as the rear end position of the rib base portion 167, and the front end position of the protruding rib portion 181 is the same as the front end position of the rib wall 165. Further, the width dimension of the protruding rib portion 181 is substantially the same as the width dimension of the rib base portion 167.

  The protruding rib portion 181 can be divided into a low step portion 181A and a high step portion 181B with the approximate center in the width direction as a boundary, and the upper end position of the high step portion 181B is higher than the low step portion 181A. The step surface 181C is exposed. The step surface 181C of the protruding rib portion 181 is in the same position as the step surface 167D of the rib base portion 167 in the width direction, and can contact. The height dimension (vertical dimension) of one side 167B of the rib base portion 167 and the lower step portion 181A of the protruding rib portion 181 is higher than the other side 167C of the rib base portion 167 and the protruding rib portion 181. The height is almost the same as the combined height of the portion 181B. The front end surface 181D of the protruding rib portion 181 is flush with the abutting surface 165B of the rib wall 165.

Next, an example of a procedure for assembling the non-waterproof connector 110 will be described.
First, the terminal fitting 40 and the electric wire 45 are passed through the electric wire insertion portion 55 of the cover member 150. Then, the terminal fitting 40 is inserted into each cavity 25 from the terminal insertion opening 25 </ b> A and pushed into a normal position, and is locked by the lance 27 and the retainer 37.

  On the other hand, the lid 170 is attached to the cover member 150 from below. The lid 170 and the cover member 150 are brought close to each other while the inner surface of the lid 170 arm 173 is brought into contact with the outer surface of the bottom wall 153 of the cover member 150. When the arm portion 173 comes into contact with the engagement protrusion 169, the arm portion 173 is bent and deformed outward, gets over the engagement protrusion 169, and returns elastically, and the engagement protrusion 169 engages with the engagement hole 175.

  Then, when the cover member 150 and the lid portion 170 are close to a predetermined position, the upper surface of the protruding rib portion 181 hits the lower surface of the rib base portion 167 and the upward movement of the lid portion 170 is stopped. In this way, when the lid 170 is attached to the cover member 150, the lower opening 150 </ b> A of the cover member 150 is covered with the lid 170. For this reason, the opening 150 </ b> A on the side opposite to the wire insertion portion 55 through which the electric wire 45 is inserted is blocked, so that intrusion of foreign matter into the cover member 150 can be suppressed.

  When the lid 170 is attached to the cover member 150, as shown in FIGS. 21 and 22, the protruding rib portion 181 and the rib base portion 167 come into contact so that the step surfaces 181C and 167D overlap each other. The lower end portion of the overlapping surface 165A of the rib wall 165 also overlaps with the step surface 181C of the protruding rib portion 181. Therefore, the exposed portion of the overlapping surface 165A of the rib wall 165 has the same size and shape as the overlapping surface 133A of the protruding wall 133.

  Then, in a state where the terminal fitting 40 is locked at the normal position in the connector housing 120, the cover member 150 to which the lid portion 170 is attached is attached to the connector housing 120 from the rear. By inserting the guide wall 61 of the cover member 150 into the notch 39, the vertical position of the cover member 150 is positioned. Then, the cover member 50 is further pushed forward, and the cover member 50 is fixed to the connector housing 20 in a state where the locking projection 35 is locked in the locking hole 59. At this time, the lock arm protection wall 21 </ b> A of the connector housing 20 is sandwiched between the side wall portion 153 of the cover member 150 and the sandwiching wall 63.

  When the cover member 150 and the connector housing 120 come close to a predetermined position, the abutting surface 133B of the projecting wall 133 of the connector housing 120 abuts against the front end surface 167A of the rib base 167 as shown in FIGS. At the same time, the abutment surface 165B of the rib wall 165 of the cover member 150 abuts against the rear end surface 31A of the partition wall 31, and the forward movement of the cover member 50 is stopped. In this manner, when the cover member 150 is mounted on the connector housing 120, the terminal insertion opening 25 </ b> A that is the rear opening of the cavity 25 is covered by the cover member 150. At this time, since the opening 150A on the lower side of the cover member 150 is covered with the lid portion 170, entry of foreign matter into the cover member 150 and entry of foreign matter into the cavity 25 are suppressed.

  When the cover member 150 is attached to the connector housing 120, the protruding wall 133 and the rib wall 165 come into contact with each other such that the overlapping surfaces 133A and 165A overlap each other. Further, the step surface 181 </ b> C at the front end portion of the protruding rib portion 181 also overlaps the overlapping surface 165 </ b> A of the rib wall 165. That is, the overlapping surface 133A of the protruding wall 133 and the step surface 181C of the protruding rib portion 181 are flush with each other and overlap the overlapping surface 165A of the rib wall 165. On the other hand, the upper end surface of the high step portion 181B of the protruding rib portion 181 overlaps the lower end surface of the protruding wall 133, and the upper end surface of the lower step portion 181A of the protruding rib portion 181 overlaps the lower end surface of the rib wall 165. Since the three-dimensional combination is overlapped in this way, even if foreign matter enters between the protruding rib portion 181 and the protruding wall 133 or the rib wall 165, the foreign matter enters the cavity 25 side. Can be prevented.

  As described above, in this embodiment, it is possible to further suppress the entry of foreign matter into the cavity 25 by attaching the lid 170 to the opening 150 </ b> A provided in the cover member 150. Further, since the protruding wall 133, the rib wall 165, and the protruding rib portion 181 are three-dimensionally combined and overlapped, a foreign object has entered between the protruding rib portion 181 and the protruding wall 133 or the rib wall 165. However, foreign matter can be prevented from entering the cavity 25 side. Therefore, it is possible to prevent a short circuit due to foreign matter entering from the terminal insertion port 25A in the adjacent terminal fitting 40.

<Other embodiments>
The technology disclosed in this specification is not limited to the embodiment described with reference to the above description and drawings, and for example, the following embodiments are also included in the technical scope.
(1) In the first and second embodiments, the protruding walls 33 and 133 and the rib walls 65 and 165 overlap with each other over the entire overlapping surfaces 33A, 133A, 65A, and 165A, but the tip portions overlap each other. May be.

  (2) In the first and second embodiments, the abutting surfaces 33B and 133B of the protruding walls 33 and 133 abut against the rib bases 67 and 167, and the abutting surfaces 65B and 165B of the rib walls 65 and 165 abut against the partition wall 31. However, you don't have to hit it. Further, although the rib walls 65 and 165 directly contact the partition wall 31, a protruding base portion protruding rearward from the partition wall may be provided so as to contact the portion.

  (3) In the second embodiment, the upper end surface of the high step portion 181B of the protruding rib portion 181 overlaps the lower end surface of the protruding wall 133, and the upper end surface of the lower step portion 181A of the protruding rib portion 181 is the lower end surface of the rib wall 165. However, the upper end surface of the lower step portion of the protruding rib portion may overlap the lower end surface of the protruding wall, and the upper end surface of the higher step portion may overlap the lower end surface of the rib wall.

  (4) In Embodiment 2 described above, the cover member 150 is attached to the connector housing 120 after the cover 170 is attached to the cover member 150. However, after the cover member 150 is attached to the connector housing 120, the cover 170 is You may attach to the cover member 150. FIG.

DESCRIPTION OF SYMBOLS 10,110 ... Non-waterproof connector 20, 120 ... Connector housing 25 ... Cavity 25A ... Terminal insertion port 31 ... Bulkhead (protrusion base)
31A ... Rear end surface 33, 133 ... Projecting wall 33A ... Overlapping surface 33B ... Abutting surface 33C ... Taper surface 35 ... Locking projection 40 ... Terminal metal fitting 45 ... Electric wire 50, 150 ... Cover member 150A ... Opening 51 ... Rear wall portion 53 ... Side wall portion 55 ... Electric wire insertion portion 57 ... Front wall portion 59 ... Locking holes 65, 165 ... Rib walls 65A, 165A ... Overlapping surfaces 65B, 165B ... Abutting surfaces 67, 167 ... Rib base portions 67A, 167A ... Front end surface 167B ... One side 167C ... Other side 167D ... Step surface 169 ... Engagement projection 170 ... Lid 171 ... Bottom plate part 173 ... Arm part 175 ... Engagement hole 181 ... Projection rib part 181A ... Low step part 181B ... High step 181C ... Step surface 181D ... Front end face

Claims (3)

A connector housing provided with a plurality of cavities into which terminal fittings can be inserted from the terminal insertion port;
A non-waterproof connector comprising a cover member mounted on the connector housing so as to cover the plurality of terminal insertion openings,
The connector housing is provided with a protruding wall that protrudes toward the cover member from a partition partitioning the cavities.
The cover member is provided with a rib wall protruding toward the protruding wall side,
A non-waterproof connector in which a leading end portion of the protruding wall and a leading end portion of the rib wall overlap each other on an overlapping surface, and the arrangement direction of the cavities intersects the overlapping surface. On the cavity side of the projecting wall, a projecting base that is wider than the tip is provided,
On the opposite side of the rib wall from the protruding wall, a rib base that is wider than the tip is provided,
2. The non-waterproof connector according to claim 1, wherein a distal end portion of the rib wall is abutted against the protruding base portion, while a distal end portion of the protruding wall is abutted against the rib base portion. The cover member has an opening on at least one side in a direction orthogonal to a direction in which the electric wire connected to the terminal fitting is pulled out,
At the opening, the lid can be mounted from the direction orthogonal to the mounting direction of the cover member,
The lid portion is provided with a protruding rib portion that protrudes in the mounting direction of the lid portion,
The tip of the protruding rib and the tip of the rib wall of the cover member overlap in the mounting direction of the lid, and overlap with the tip of the protruding wall to form the overlapping surface. Item 3. A non-waterproof connector according to item 2.

Images