Connector

Abstract

To provide a technique capable of preventing deterioration in sealing performance of a rubber plug by allowing a margin for deformation.SOLUTION: At a rear surface of a housing 10, a housing recess 10B for accommodating a collective rubber plug 12 is formed. The housing recess 10B has a back surface 10E facing a front surface of the collective rubber plug 12 and an inner peripheral surface 10G facing an outer peripheral surface 12G of the collective rubber plug 12. A holder 11 has a pressing surface 11E facing a rear surface of the collective rubber plug 12. The rear surface of the collective rubber plug 12 has a rear surface outer peripheral portion 12F collectively surrounding seal holes 12A. The collective rubber plug 12 has a rear lip 12C protruding rearward from the rear surface outer peripheral portion 12F. The rear lip 12C is brought into close contact with the pressing surface 11E of the holder 11 in a compressed state with a larger compression amount (lapping amount) than that at portions other than the rear lip 12C on the rear surface of the collective rubber plug 12. The outer peripheral surface 12G of the collective rubber plug 12 is disposed apart from the inner peripheral surface 10G of the housing recess 10B.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present disclosure relates to connectors. [Background technology]

[0002] Patent Document 1 discloses a technique for assembling a one-piece rubber plug into an accommodating space formed in a housing from a direction intersecting the insertion direction of the terminal fittings, while Patent Document 2 discloses a technique for assembling a mat seal into the housing from the rear. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-190549 [Patent Document 2] Japanese Patent Application Publication No. 2019-145355 Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration of Patent Document 1, each outer peripheral surface of the one-piece rubber stopper is in contact with the surface that faces each outer peripheral surface that forms the accommodation space. However, in this configuration, when the terminal fittings are inserted into the one-piece rubber stopper, the surfaces mean that there is no room for the one-piece rubber stopper to deform outward, and in the worst case scenario, the one-piece rubber stopper may be damaged by the terminal fittings, resulting in a decrease in sealing performance.

[0005] Therefore, an object of the present disclosure is to provide a technique that can prevent a decrease in the sealing ability of a rubber stopper by providing room for deformation. [Means for solving the problem]

[0006] The connector of the first disclosure comprises: a housing having a plurality of cavities; a plurality of terminal fittings accommodated in each of the cavities; a one-piece rubber plug having a plurality of seal holes formed therethrough in the front-rear direction and communicating with each of the cavities from the rear; a holder for holding the one-piece rubber plug between the holder and the housing; Equipped with In each of the seal holes, an electric wire connected to the terminal fitting is disposed in a liquid-tight manner, The housing has a rear surface formed with an opening to form a recess for accommodating the one-piece rubber plug. The accommodating recess has a rear surface facing the front surface of the one-piece rubber stopper and an inner peripheral surface facing the outer peripheral surface of the one-piece rubber stopper, the holder has a pressing surface facing the rear surface of the one-piece rubber stopper, the rear surface of the one-piece rubber plug has a rear surface outer periphery that collectively surrounds the rear end openings of the seal holes, The one-piece rubber plug has a rear lip that protrudes rearward from the outer periphery of the rear surface, the rear lip is configured to be compressed and in close contact with the pressing surface of the holder by a larger compression amount than the portion of the rear surface of the one-piece rubber plug other than the rear lip, The outer circumferential surface of the one-piece rubber plug is spaced apart from the inner circumferential surface of the receiving recess.

[0007] The connector of the second disclosure is a housing having a plurality of cavities; a plurality of terminal fittings accommodated in each of the cavities; a one-piece rubber plug having a plurality of seal holes formed therethrough in the front-rear direction and communicating with each of the cavities from the rear; a holder for holding the one-piece rubber plug between the holder and the housing, In each of the seal holes, an electric wire connected to the terminal fitting is disposed in a liquid-tight manner, The housing has a rear surface formed with an opening to form a recess for accommodating the one-piece rubber plug. The accommodating recess has a rear surface facing the front surface of the one-piece rubber stopper and an inner peripheral surface facing the outer peripheral surface of the one-piece rubber stopper, the holder has a pressing surface facing the rear surface of the one-piece rubber stopper, The front surface of the one-piece rubber plug has a front outer periphery that collectively surrounds the front end openings of the seal holes, The one-piece rubber plug has a front lip that protrudes forward from the front outer periphery, the front lip is configured to be in close contact with the inner surface of the receiving recess in a state where it is compressed by a larger amount than the portion of the front surface of the one-piece rubber plug other than the front lip, The outer circumferential surface of the one-piece rubber plug is spaced apart from the inner circumferential surface of the receiving recess. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to prevent the sealing performance of the rubber stopper from being reduced by providing room for deformation. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing a connector according to a first embodiment. [Figure 2] FIG. 2 is an exploded perspective view showing the connector. [Figure 3] FIG. 3 is a perspective view showing the housing. [Figure 4] FIG. 4 is a cross-sectional side view of the housing. [Figure 5] FIG. 5 is a perspective view showing the holder. [Figure 6] FIG. 6 is a perspective view showing a one-piece rubber plug. [Figure 7] FIG. 7 is a cross-sectional view taken along line AA in FIG. [Figure 8] FIG. 8 is a cross-sectional view taken along the line BB in FIG. [Figure 9] FIG. 9 is a side cross-sectional view showing the connector. DETAILED DESCRIPTION OF THE INVENTION

[0010] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. (1) a housing having a plurality of cavities; a plurality of terminal fittings accommodated in each of the cavities; a one-piece rubber plug having a plurality of seal holes formed therethrough in the front-rear direction and communicating with each of the cavities from the rear; a holder for holding the one-piece rubber plug between the holder and the housing; Equipped with In each of the seal holes, an electric wire connected to the terminal fitting is disposed in a liquid-tight manner, The housing has a rear surface formed with an opening to form a recess for accommodating the one-piece rubber plug. The accommodating recess has a rear surface facing the front surface of the one-piece rubber stopper and an inner peripheral surface facing the outer peripheral surface of the one-piece rubber stopper, the holder has a pressing surface facing the rear surface of the one-piece rubber stopper, the rear surface of the one-piece rubber plug has a rear surface outer periphery that collectively surrounds the rear end openings of the seal holes, The one-piece rubber plug has a rear lip that protrudes rearward from the outer periphery of the rear surface, the rear lip is configured to be compressed and in close contact with the pressing surface of the holder by a larger compression amount than the portion of the rear surface of the one-piece rubber plug other than the rear lip, a connector, wherein an outer peripheral surface of the one-piece rubber plug is spaced apart from the inner peripheral surface of the accommodating recess;

[0011] In the connector (1), the one-piece rubber stopper is accommodated in the accommodation recess with its outer circumferential surface separated from the inner circumferential surface, which allows the one-piece rubber stopper to escape outward and deform, making it easier for the one-piece rubber stopper to elastically deform when the terminal fittings are inserted into the seal holes, making it less likely for the one-piece rubber stopper to be damaged by the terminal fittings and preventing a decrease in sealing performance.

[0012] (2) a housing having a plurality of cavities; a plurality of terminal fittings accommodated in each of the cavities; a one-piece rubber plug having a plurality of seal holes formed therethrough in the front-rear direction and communicating with each of the cavities from the rear; a holder for holding the one-piece rubber plug between the holder and the housing; Equipped with In each of the seal holes, an electric wire connected to the terminal fitting is disposed in a liquid-tight manner, The housing has a rear surface formed with an opening to form a recess for accommodating the one-piece rubber plug. The accommodating recess has a rear surface facing the front surface of the one-piece rubber stopper and an inner peripheral surface facing the outer peripheral surface of the one-piece rubber stopper, the holder has a pressing surface facing the rear surface of the one-piece rubber stopper, The front surface of the one-piece rubber plug has a front outer periphery that collectively surrounds the front end openings of the seal holes, The one-piece rubber plug has a front lip that protrudes forward from the front outer periphery, the front lip is configured to be in close contact with the inner surface of the receiving recess in a state where it is compressed by a larger amount than the portion of the front surface of the one-piece rubber plug other than the front lip, a connector, wherein an outer peripheral surface of the one-piece rubber plug is spaced apart from the inner peripheral surface of the accommodating recess;

[0013] In the connector (2), the one-piece rubber stopper is accommodated in the accommodation recess with its outer circumferential surface separated from the inner circumferential surface, which allows the one-piece rubber stopper to escape outward and deform, making it easier for the one-piece rubber stopper to elastically deform when the terminal fittings are inserted into the seal holes, making it less likely for the one-piece rubber stopper to be damaged by the terminal fittings and preventing a decrease in sealing performance.

[0014] (3) A positioning boss is formed to protrude from at least one of the innermost surface of the accommodating recess and the pressing surface of the holder, The connector according to (1) or (2), wherein the one-piece rubber plug has a front and rear surface, and a positioning recess into which the positioning boss fits, formed on the surface facing the positioning boss.

[0015] (3) The connector can determine the position of the one-piece rubber stopper in the accommodating recess by fitting the positioning boss into the positioning recess, so that the outer surface of the one-piece rubber stopper and the inner surface of the accommodating recess can be maintained apart.

[0016] [Details of the embodiments of the present disclosure] <Embodiment 1> A first embodiment of a connector 1 according to the present disclosure will be described with reference to Figures 1 to 9. In the figures, the "front side" and "rear side" are represented by "F" and "B," respectively. Note that the directional references are defined for convenience and do not necessarily coincide with the directions when the connector 1 is mounted on a vehicle or the like.

[0017] Configure Connector 1 and 2, the connector 1 is a so-called lever-type connector and includes a housing 10, a plurality of terminal fittings 70 (see FIG. 9), a holder 11, a lug 12, a seal ring 13, a retainer 14, a front member 15, a slider 16, a lever 17, and a cover 18.

[0018] [Housing configuration] The housing 10 is configured as an inner housing. The housing 10 is made of synthetic resin and has insulating properties. As shown in Figures 3 and 4, the housing 10 has a terminal accommodating portion 10A, an accommodating recess 10B, and a pair of locking portions 10C.

[0019] The terminal accommodating portion 10A has a plurality of cavities 10D. Each cavity 10D extends in the front-rear direction and is exposed on both the front and rear sides of the housing 10 (see FIG. 4). The cavities 10D are formed at intervals in the width and height directions of the terminal accommodating portion 10A (see FIG. 3).

[0020] The accommodating recess 10B is formed on the rear surface of the housing 10 and opens rearward. The accommodating recess 10B protrudes rearward in a cylindrical shape from the outer periphery of the terminal accommodating portion 10A. The internal space of the accommodating recess 10B communicates with the rear ends of the cavities 10D and is open to the rear of the housing 10. A one-piece rubber plug 12 is accommodated in the accommodating recess 10B from the rear. The rear-facing surface of the terminal accommodating portion 10A facing the accommodating recess 10B is the back surface 10E. The inside of the accommodating recess 10B is formed as an inner peripheral surface 10G. A plurality of positioning bosses 10F protrude rearward from the back surface 10E at positions that do not overlap with the cavities 10D.

[0021] The pair of locking portions 10C are provided on both sides of the accommodating recess 10B in the width direction (see FIG. 3). Each locking portion 10C protrudes outward in the width direction from the rear end of the accommodating recess 10B (see FIG. 3).

[0022] [Terminal metal fitting configuration] The multiple terminal fittings 70 are conductive and formed by bending a metal plate or the like. As shown in FIG. 9, the terminal fittings 70 are female. The terminal fittings 70 have a tubular (more specifically, rectangular tubular) main body 70A and an electric wire connecting portion 70B. A mating terminal fitting (not shown) is electrically connected to the main body 70A. A conductor of an electric wire W is electrically connected to the electric wire connecting portion 70B by crimping or the like. Each terminal fitting 70 is inserted into each cavity 10D from the rear and accommodated in each cavity 10D.

[0023] [Holder configuration] The holder 11 is configured as an outer housing. The holder 11 is made of synthetic resin and has insulating properties. As shown in Fig. 5, the holder 11 has a rear wall portion 11A, a hood portion 11B, and a pair of locking portions 11C.

[0024] The rear wall 11A is wall-shaped and has a thickness in the front-to-rear direction. A plurality of through holes 11D are formed in the rear wall 11A, penetrating the rear wall 11A in the front-to-rear direction. The through holes 11D are aligned at intervals in the width and height directions. A terminal fitting 70 and an electric wire W are inserted into each through hole 11D (see FIG. 9).

[0025] The hood portion 11B is formed in a cylindrical shape and protrudes forward from the outer periphery of the rear wall portion 11A. The front-facing surface of the rear wall portion 11A facing the hood portion 11B is a pressing surface 11E. A plurality of positioning bosses 11F are provided on the pressing surface 11E and protrude forward.

[0026] A pair of locking portions 11C are provided on both widthwise sides of the hood portion 11B. Each locking portion 11C has a slit shape that is long in the height direction. Each locking portion 11C locks with a corresponding lock receiving portion 10C of the housing 10. When each locking portion 11C locks with each lock receiving portion 10C, the housing 10 is in a fully locked state with respect to the holder 11.

[0027] [Configuration of one-piece rubber stoppers] The one-piece rubber stopper 12 is made of, for example, silicone rubber. The one-piece rubber stopper 12 has a rectangular plate shape with an outer diameter that is thick in the front-to-rear direction. As shown in FIGS. 6 to 8, the one-piece rubber stopper 12 has multiple seal holes 12A, a front outer peripheral portion 12E, a rear outer peripheral portion 12F, a front lip 12B, a rear lip 12C, and multiple positioning recesses 12D. The multiple seal holes 12A are aligned in the horizontal and vertical directions and formed to penetrate in the front-to-rear direction. A lip 12H is provided in the center of each seal hole 12A in the front-to-rear direction so as to reduce its diameter (see FIG. 7). The lips 12H of seal holes 12A adjacent to each other in the width direction or height direction are shifted in the front-to-rear direction (see FIG. 7).

[0028] The front outer peripheral portion 12E is a portion that collectively surrounds the front end openings of each seal hole 12A on the front surface of the one-piece rubber stopper 12. The rear outer peripheral portion 12F is a portion that collectively surrounds the rear end openings of each seal hole 12A on the rear surface of the one-piece rubber stopper 12. The width and height dimensions of the front outer peripheral portion 12E are smaller than the width and height dimensions of the rear outer peripheral portion 12F.

[0029] The front lip 12B is formed on the front surface of the one-piece rubber plug 12 in a ring shape surrounding the multiple seal holes 12A and protruding forward. In other words, the front lip 12B protrudes forward from the front outer periphery 12E. The rear lip 12C is formed on the rear surface of the one-piece rubber plug 12 in a ring shape surrounding the multiple seal holes 12A and protruding rearward. In other words, the rear lip 12C protrudes rearward from the rear outer periphery 12F. The front lip 12B and the rear lip 12C have semi-cylindrical cross sections. Multiple positioning recesses 12D are recessed on the front and rear surfaces of the one-piece rubber plug 12 at positions that do not overlap with the seal holes 12A. These positioning recesses 12D are blind holes. A positioning boss 10F of the housing 10 is fitted into each positioning recess 12D formed on the front surface. A positioning boss 11F of the holder 11 is fitted into each positioning recess 12D formed on the rear surface.

[0030] [Connector assembly] Next, an example of the procedure for assembling the connector 1 will be described mainly with reference to Figure 9. First, the seal ring 13 is attached to the outer peripheral surface of the housing 10. Then, the retainer 14 is provisionally locked to the housing 10, and the front member 15 is attached. Also, the slider 16 and the lever 17 are attached to the holder 11.

[0031] The one-piece rubber stopper 12 is accommodated in the accommodation recess 10B of the housing 10 from the rear. The one-piece rubber stopper 12 is positioned by fitting the positioning bosses 10F of the accommodation recess 10B into the positioning recesses 12D on the front surface. In this way, the outer peripheral surface 12G of the one-piece rubber stopper 12 is maintained spaced apart from the inner peripheral surface 10G of the accommodation recess 10B over the entire circumferential direction. At this time, each seal hole 12A of the one-piece rubber stopper 12 communicates with each cavity 10D from the rear.

[0032] Next, the housing 10, to which the seal ring 13, retainer 14, and front member 15 are attached, is inserted from the front into the hood portion 11B of the holder 11. During the insertion process of the housing 10, each locking receiving portion 10C of the housing 10 is pressed against the inner peripheral surface of the hood portion 11B and bends inward in the width direction, and when the housing 10 passes rearward through the locking portions 11C, it elastically returns to its original shape due to its elastic force. As a result, each locking receiving portion 10C of the housing 10 is locked with each locking portion 11C of the holder 11, and the housing 10 is fully locked to the holder 11. The state in which the locking receiving portions 10C are locked with the locking portions 11C is not shown.

[0033] In the process of the housing 10 and holder 11 reaching the final locked state, the positioning boss 11F of the holder 11 is fitted into the positioning recess 12D (not shown) on the rear surface of the one-piece rubber plug 12. At the same time, the rear lip 12C is pressed from behind by the pressing surface 11E and compressed in the front-to-rear direction, and the front lip 12B is pressed from the front by the inner surface 10E and compressed in the front-to-rear direction.

[0034] The one-piece rubber plug 12 is disposed between the rear end of the terminal accommodating portion 10A of the housing 10 and the front end of the rear wall portion 11A of the holder 11 in the front-to-rear direction. In the fully locked state, the distance between the rear surface 10E of the housing 10 and the pressing surface 11E of the rear wall portion 11A of the holder 11 is the same as the plate thickness of the one-piece rubber plug 12 in the front-to-rear direction excluding the front lip 12B and the rear lip 12C. As a result, the rear lip 12C is compressed and tightly attached to the pressing surface 11E of the holder 11 with a larger amount of compression (overlap) than the portion of the rear surface of the one-piece rubber plug 12 other than the rear lip 12C. In addition, the front lip 12B is compressed and tightly attached to the rear surface 10E of the accommodating recess 10B with a larger amount of compression than the portion of the front surface of the one-piece rubber plug 12 other than the front lip 12B. In the fully locked state, the holder 11 holds the one-piece rubber plug 12 between itself and the housing 10.

[0035] At this time, the rear surface 10E of the accommodating recess 10B faces the front surface of the one-piece rubber stopper 12. The inner peripheral surface 10G of the accommodating recess 10B faces the outer peripheral surface 12G of the one-piece rubber stopper 12. The outer peripheral surface 12G of the one-piece rubber stopper 12 is disposed away from the inner peripheral surface 10G. The pressing surface 11E of the holder 11 faces the rear surface of the one-piece rubber stopper 12. The rear surface 10E of the accommodating recess 10B may be in contact with the front surface of the one-piece rubber stopper 12 or may be away from it. The pressing surface 11E of the holder 11 may be in contact with the rear surface of the one-piece rubber stopper 12 or may be away from it.

[0036] Next, the terminal fitting 70 connected to the electric wire W is inserted from the rear into the through hole 11D of the holder 11 and then into the seal hole 12A located in front of the through hole 11D. Because the outer peripheral surface 12G of the one-piece rubber plug 12 is spaced apart from the inner peripheral surface 10G of the accommodating recess 10B over the entire circumferential direction, the one-piece rubber plug 12 can elastically deform outward even when the terminal fitting 70 and the electric wire W are inserted into the seal hole 12A. This minimizes the frictional force generated between the seal hole 12A and the terminal fitting 70 and electric wire W. The terminal fitting 70 is inserted into the cavity 10D of the terminal accommodating portion 10A. Once the terminal fitting 70 is placed in the cavity 10D, the outer peripheral surface of the electric wire W comes into liquid-tight contact with the inner peripheral surface of the seal hole 12A. Once the terminal fitting 70 is inserted to the correct position, the retainer 14 is pushed into the full-lock position. This prevents the terminal fittings 70 from coming off. At this time, the electric wires W are arranged in a liquid-tight manner in each seal hole 12A. Then, the cover 18 is attached to the holder 11, and the connector 1 is completed.

[0037] Next, the operation of the first embodiment will be described. The connector 1 includes a housing 10 having multiple cavities 10D, multiple terminal fittings 70 accommodated in each of the cavities 10D, a single-piece rubber stopper 12 having multiple seal holes 12A formed therethrough in the front-to-rear direction and communicating with each of the cavities 10D from the rear, and a holder 11 that holds the single-piece rubber stopper 12 between the housing 10 and the holder 11. Electric wires W connected to the terminal fittings 70 are disposed in each seal hole 12A in a liquid-tight manner. An accommodating recess 10B is formed in the rear surface of the housing 10 and opens to accommodate the single-piece rubber stopper 12. The accommodating recess 10B has a back surface 10E facing the front surface of the single-piece rubber stopper 12 and an inner circumferential surface 10G facing the outer circumferential surface 12G of the single-piece rubber stopper 12. The holder 11 has a pressing surface 11E facing the rear surface of the single-piece rubber stopper 12. The rear surface of the single-piece rubber stopper 12 has a rear surface outer circumferential portion 12F that collectively surrounds the rear end openings of each seal hole 12A. The one-piece rubber stopper 12 has a rear lip 12C that protrudes rearward from a rear surface outer peripheral portion 12F. The rear lip 12C is configured to be in close contact with the pressing surface 11E of the holder 11 while being compressed with a larger amount of compression than the portion of the rear surface of the one-piece rubber stopper 12 other than the rear lip 12C. The outer peripheral surface 12G of the one-piece rubber stopper 12 is positioned away from the inner peripheral surface 10G of the installation recess 10B.

[0038] According to this configuration, the one-piece rubber stopper 12 is accommodated in the accommodation recess 10B with the outer peripheral surface 12G of the one-piece rubber stopper 12 spaced apart from the inner peripheral surface 10G of the accommodation recess 10B. Therefore, the one-piece rubber stopper 12 has room to escape and deform outward, which makes it easier for the one-piece rubber stopper 12 to elastically deform when the terminal fitting 70 is inserted into the seal hole 12A, making it less likely for the one-piece rubber stopper 12 to be damaged by the terminal fitting 70 and preventing a decrease in sealing performance.

[0039] The connector 1 includes a housing 10 having multiple cavities 10D, multiple terminal fittings 70 accommodated in each of the cavities 10D, a single-piece rubber stopper 12 having multiple seal holes 12A formed therethrough in the front-to-rear direction and communicating with each of the cavities 10D from the rear, and a holder 11 that holds the single-piece rubber stopper 12 between the housing 10 and the holder 11. Electric wires W connected to the terminal fittings 70 are disposed in each seal hole 12A in a liquid-tight manner. An accommodating recess 10B is formed in the rear surface of the housing 10 and opens to accommodate the single-piece rubber stopper 12. The accommodating recess 10B has a back surface 10E facing the front surface of the single-piece rubber stopper 12 and an inner peripheral surface 10G facing the outer peripheral surface 12G of the single-piece rubber stopper 12. The holder 11 has a pressing surface 11E facing the rear surface of the single-piece rubber stopper 12. The front surface of the single-piece rubber stopper 12 has a front peripheral portion 12E that collectively surrounds the front end openings of each seal hole 12A. The one-piece rubber stopper 12 has a front lip 12B that protrudes forward from a front outer peripheral portion 12E. The front lip 12B is configured to fit tightly against the inner surface 10E of the accommodating recess 10B in a state where it is compressed to a greater extent than the portion of the front surface of the one-piece rubber stopper 12 other than the front lip 12B. The outer peripheral surface 12G of the one-piece rubber stopper 12 is positioned away from the inner peripheral surface 10G of the accommodating recess 10B.

[0040] According to this configuration, the one-piece rubber stopper 12 is accommodated in the accommodation recess 10B with the outer peripheral surface 12G of the one-piece rubber stopper 12 spaced apart from the inner peripheral surface 10G of the accommodation recess 10B. Therefore, the one-piece rubber stopper 12 has room to escape and deform outward, which makes it easier for the one-piece rubber stopper 12 to elastically deform when the terminal fitting 70 is inserted into the seal hole 12A, making it less likely for the one-piece rubber stopper 12 to be damaged by the terminal fitting 70 and preventing a decrease in sealing performance.

[0041] Positioning bosses 10F, 11F are formed to protrude from the inner surface 10E of the accommodating recess 10B and the pressing surface 11E of the holder 11, and positioning recesses 12D into which the positioning bosses 10F, 11F fit are formed on the front and rear surfaces of the one-piece rubber stopper 12 that face the positioning bosses 10F, 11F. According to this configuration, the one-piece rubber stopper 12 can be positioned in the accommodating recess 10B by fitting the positioning bosses 10F, 11F into the positioning recess 12D, so that the outer peripheral surface 12G of the one-piece rubber stopper 12 and the inner peripheral surface 10G of the accommodating recess 10B can be maintained apart.

[0042] [Another embodiment of the present disclosure] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. (1) Unlike the first embodiment, a configuration may be adopted in which only one of the front lip and the rear lip is provided. (2) Unlike the first embodiment, the positioning boss may be provided only on the housing or only on the holder. (3) Unlike the first embodiment, a male terminal fitting may be used as the terminal fitting. (4) Unlike the first embodiment, the front lip and the rear lip may be formed so as to be pointed in the protruding direction. [Explanation of symbols]

[0043] 1: Connector 10: Housing 10A: Terminal housing 10B: Receiving recess 10C: Locking receiving part 10D: Cavity 10E: Back side 10F: Positioning boss 10G: Inner surface 11: Holder 11A: Rear wall part 11B: Hood section 11C: Locking part 11D: Through hole 11E: Pressing surface 11F: Positioning boss 12: Rubber stopper 12A: Seal hole 12B: Front lip 12C: Rear lip 12D: Positioning recess 12E: Front outer periphery 12F: Rear outer periphery 12G: Outer surface 12H: Lip 13: Seal ring 14: Retainer 15: Front member 16: Slider 17: Lever 18: Cover 70: Terminal fittings 70A: Main body 70B: Wire connection part W: Electric wire

Claims

1. a housing having a plurality of cavities; a plurality of terminal fittings accommodated in each of the cavities; a one-piece rubber plug having a plurality of seal holes formed therethrough in the front-rear direction and communicating with each of the cavities from the rear; a holder for holding the one-piece rubber plug between the holder and the housing; Equipped with In each of the seal holes, an electric wire connected to the terminal fitting is disposed in a liquid-tight manner, The housing has a rear surface formed with an opening to form a recess for accommodating the one-piece rubber plug. The accommodating recess has a rear surface facing the front surface of the one-piece rubber stopper and an inner peripheral surface facing the outer peripheral surface of the one-piece rubber stopper, the holder has a pressing surface facing the rear surface of the one-piece rubber stopper, the rear surface of the one-piece rubber plug has a rear surface outer periphery that collectively surrounds the rear end openings of the seal holes, The one-piece rubber plug has a rear lip that protrudes rearward from the outer periphery of the rear surface, the rear lip is configured to be compressed and in close contact with the pressing surface of the holder by a larger compression amount than the portion of the rear surface of the one-piece rubber plug other than the rear lip, a connector, wherein an outer peripheral surface of the one-piece rubber plug is spaced apart from the inner peripheral surface of the accommodating recess;

2. a housing having a plurality of cavities; a plurality of terminal fittings accommodated in each of the cavities; a one-piece rubber plug having a plurality of seal holes formed therethrough in the front-rear direction and communicating with each of the cavities from the rear; a holder for holding the one-piece rubber plug between the holder and the housing; Equipped with In each of the seal holes, an electric wire connected to the terminal fitting is disposed in a liquid-tight manner, The housing has a rear surface formed with an opening to form a recess for accommodating the one-piece rubber plug. The accommodating recess has a rear surface facing the front surface of the one-piece rubber stopper and an inner peripheral surface facing the outer peripheral surface of the one-piece rubber stopper, the holder has a pressing surface facing the rear surface of the one-piece rubber stopper, The front surface of the one-piece rubber plug has a front outer periphery that collectively surrounds the front end openings of the seal holes, The one-piece rubber plug has a front lip that protrudes forward from the front outer periphery, the front lip is configured to be in close contact with the inner surface of the receiving recess in a state where it is compressed by a larger amount than the portion of the front surface of the one-piece rubber plug other than the front lip, a connector, wherein an outer peripheral surface of the one-piece rubber plug is spaced apart from the inner peripheral surface of the accommodating recess;

3. a positioning boss is formed to protrude from at least one of the innermost surface of the accommodating recess and the pressing surface of the holder; 3. The connector according to claim 1, wherein one of the front and rear surfaces of the one-piece rubber plug is formed with a positioning recess into which the positioning boss fits, on the surface facing the positioning boss.

Images