connector

Abstract

To suppress the rattling between connectors by a vibration-proof portion when the connector and the mating connector are mated, and prevent a rubber stopper from turning backwards by a turning-up suppressing portion when the connector and the mating connector are mated.SOLUTION: A connector 10 according to the present disclosure that can be mated to a mating connector 50 that has a mating hood portion, includes a housing 20 having a tower portion 23 that can be fitted into a mating hood portion, and a rubber plug 30 that is fitted onto the outside of the tower portion 23, and the rubber stopper 30 includes an annular water stop portion 32 disposed between the outer circumferential surface 23E of the tower portion 23 and the inner circumferential surface of the mating hood portion when the tower portion 23 is fitted into the mating hood portion, a cylindrical vibration-proofing portion 33 extending forward from the water stop portion 32 along the outer circumferential surface 23E of the tower portion 23, and a turning-up suppressing portion 34 is installed on the front end portion 33A of the vibration-proofing portion 33 and catches on the front end portion 23C of the tower portion 23 to prevent the rubber plug 30 from turning backwards.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] A known connector that uses a rubber ring to improve the connector's vibration resistance is described in Japanese Patent Laid-Open Publication No. 2020-115445 (Patent Document 1 below). This connector includes a terminal, a housing having a tower portion that protrudes forward and is provided with a cavity that accommodates the terminal, a liquid-tight ring fitted onto the tower portion, a vibration-resistant ring fitted onto the tower portion at a position forward of the liquid-tight ring, and a retainer attached to the front end of the tower portion and holding the vibration-resistant ring. With this connector, the liquid-tight ring improves the connector's liquid-tightness, and the vibration-resistant ring improves the connector's vibration resistance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-115445 Summary of the Invention [Problem to be solved by the invention]

[0004] The above connector requires a liquid-tight ring, a vibration-resistant ring, and a retainer to hold the vibration-resistant ring, resulting in an increase in the number of parts. One possible solution to this problem is to form an integrated rubber ring by integrating the liquid-tight ring and the vibration-resistant ring. This would require only one rubber ring, and the integrated rubber ring could be held in place by the lugs that hold the liquid-tight ring, eliminating the need for a retainer. However, there is a concern that, when mating the above connector with a mating connector, the front end of the integrated rubber ring may be turned up due to frictional forces generated between the mating connector and the integrated rubber ring. [Means for solving the problem]

[0005] The connector of the present disclosure is a connector that can be fitted into a mating connector having a mating hood portion, and comprises a housing having a tower portion that can be fitted into the mating hood portion, and a rubber stopper that is fitted onto the tower portion, wherein the rubber stopper has an annular water-stopping portion that is arranged between the outer surface of the tower portion and the inner surface of the mating hood portion when the tower portion is fitted into the mating hood portion, a tubular vibration-resistant portion that extends forward from the water-stopping portion along the outer surface of the tower portion, and a curl-up prevention portion that is mounted on the front end portion of the vibration-resistant portion and catches on the front end portion of the tower portion to prevent the rubber stopper from curling backward. [Effects of the Invention]

[0006] According to the present disclosure, the vibration-resistant portion can suppress rattle between the connectors when the connector and the mating connector are mated, and the curl-up suppression portion can suppress the rubber stopper from curling backward when the connector and the mating connector are mated. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view showing a state in which a connector and a mating connector are mated. [Figure 2] FIG. 2 is an exploded perspective view showing the connector and the mating connector. [Figure 3] FIG. 3 is a plan view showing a state in which the connector and the mating connector are mated. [Figure 4] FIG. 4 is a side view showing the state in which the connector and the mating connector are mated. [Figure 5] FIG. 5 is a front view of the housing. [Figure 6] FIG. 6 is a front view of the connector. [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 cross-sectional view taken along line CC in FIG. [Figure 10] FIG. 10 is a perspective view of the rubber stopper according to the first embodiment, as viewed obliquely from the front. [Figure 11] FIG. 11 is a perspective view of the rubber stopper according to the first embodiment, as viewed obliquely from behind. [Figure 12] FIG. 12 is a perspective view of the rubber plug according to the second embodiment, as viewed obliquely from the front. DETAILED DESCRIPTION OF THE INVENTION

[0008] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. (1) The connector of the present disclosure is a connector that can be fitted into a mating connector having a mating hood portion, and includes a housing having a tower portion that can be fitted into the mating hood portion, and a rubber stopper that is fitted onto the tower portion. The rubber stopper has an annular water-stopping portion that is arranged between the outer peripheral surface of the tower portion and the inner peripheral surface of the mating hood portion when the tower portion is fitted into the mating hood portion, a tubular vibration-resistant portion that extends forward from the water-stopping portion along the outer peripheral surface of the tower portion, and a curl-up prevention portion that is provided at the front end portion of the vibration-resistant portion and catches on the front end portion of the tower portion to prevent the rubber stopper from curling backward.

[0009] According to the above connector, the annular water-stopping portion of the rubber stopper can seal the gap between the mating hood portion and the tower portion. If the mating hood portion and the tower portion were in contact only through the water-stopping portion, the front end portion of the tower portion would be prone to vibrating around the water-stopping portion. Therefore, the above connector is provided with a tubular vibration-resistant portion that extends forward from the water-stopping portion along the outer circumferential surface of the tower portion, thereby suppressing vibration of the front end portion of the tower portion. If such a vibration-resistant portion is provided, there is a risk that the rubber stopper will curl backward when the tower portion is fitted into the mating hood portion. However, the above connector is provided with a curl-up suppression portion at the front end portion of the vibration-resistant portion, which catches on the front end portion of the tower portion, thereby preventing the rubber stopper from curling backward.

[0010] (2) The tower section has at least one pair of cavities that open in the front-to-rear direction and a partition wall that separates the pair of adjacent cavities, and it is preferable that the curl-up suppression section is installed on the front end portion of the vibration-resistant section and can contact the partition wall from the front. Generally, a partition wall is provided between a pair of adjacent cavities to insulate the terminals from each other since the cavities accommodate terminals. By utilizing such a partition wall, the curl-up suppression part can contact the partition wall from the front, thereby preventing the rubber stopper from curling backward.

[0011] (3) It is preferable that the partition wall has a partition wall opening that opens forward, and the curling suppression portion enters the partition wall opening from the front. In order to prevent sink marks and the like during molding of the partition wall, a partition wall opening for lightening may be provided in the partition wall. By utilizing such a partition wall opening, the curling-up suppression part can enter the partition wall opening from the front, thereby further suppressing the rubber stopper from curling up backward.

[0012] (4) It is preferable that the front end portion of the tower section has a notch formed by cutting out the space between the inner wall of the partition opening and the outer peripheral surface of the tower section, and that the curling suppression section enters the partition opening and the notch from the front. By inserting the curling suppression portion into the partition opening and into the notch, the curling suppression portion is firmly caught on the front end portion of the tower portion.

[0013] (5) A plurality of protrusions are provided on the outer peripheral surface of the vibration-resistant portion, extending in the front-to-rear direction, and the plurality of protrusions are provided at intervals from one another in the circumferential direction of the vibration-resistant portion. When the tower portion is fitted into the mating hood portion, the multiple protrusions come into contact with the inner surface of the mating hood portion, resulting in a smaller contact area than when the tower portion is in contact with the inner surface of the mating hood portion over the entire circumference, reducing the frictional force generated between the mating hood portion and the vibration-resistant portion and reducing the force required for fitting.

[0014] [Details of the embodiments of the present disclosure] Specific examples of the connector of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0015] <Embodiment 1> A first embodiment of the present disclosure will be described with reference to Figures 1 to 11. In the following description, the direction indicated by arrow Z is the up-down direction, the direction indicated by arrow X is the front-rear direction, and the direction indicated by arrow Y is the left-right direction, and the mating surface side of connector 10 and mating connector 50 is the front side. Note that, for multiple identical components, only some of the components may be assigned reference numerals, and the reference numerals of the other components may be omitted.

[0016] As shown in Fig. 2, the connector 10 of this embodiment includes a housing 20 and a rubber plug 30. The connector 10 is capable of mating with a mating connector 50. The connector 10 and the mating connector 50 form a connector unit 100.

[0017] [Mating Connector] The mating connector 50 includes a mating housing 60 and mating terminals 51. The mating housing 60 is made of insulating synthetic resin, and as shown in Fig. 7, includes a plate-shaped main body 61, a front tubular portion 62 extending forward from the periphery of the main body 61, and a rear tubular portion 63 extending rearward from the periphery of the main body 61. The front tubular portion 62 has a cylindrical hood shape and is open to the front, and the rear wall of the front tubular portion 62 is formed by the main body 61. The rear tubular portion 63 has a cylindrical hood shape and is open to the rear, and the rear wall of the rear tubular portion 63 is formed by the main body 61.

[0018] As shown in Fig. 2, the front-side tube portion 62, the main body portion 61, and the rear-side tube portion 63 are provided in this order, connected together. The outer peripheral surface 62A of the front-side tube portion 62, the outer peripheral surface 61A of the main body portion 61, and the outer peripheral surface 63A of the rear-side tube portion 63 are continuous and flush with each other. A lock receiving portion 64 is provided on the outer peripheral surface 62A of the front-side tube portion 62. A pair of protective walls 65 are provided on both the left and right sides of the lock receiving portion 64 on the outer peripheral surface 62A of the front-side tube portion 62. A pair of flanges 66 are provided at the rear end of the rear-side tube portion 63, protruding in the left-right direction.

[0019] The mating terminal 51 is made of metal and is a tab-shaped male terminal as shown in FIG. 2. The mating terminal 51 is formed into a predetermined shape by known methods such as press working, cutting, and casting. The metal constituting the mating terminal 51 can be selected appropriately from copper, copper alloy, aluminum, aluminum alloy, stainless steel, and other metals as needed. A plating layer may be formed on the surface of the mating terminal 51. The metal constituting the plating layer can be selected appropriately from tin, nickel, silver, and other metals as needed.

[0020] 7, the mating terminals 51 are held in the main body 61 of the mating housing 60 in a manner that penetrates the main body 61 in the front-rear direction. The portions of the mating terminals 51 that correspond to the front tubular portion 62 protrude from the main body 61 to near the center of the front tubular portion 62 in the front-rear direction. The portions of the mating terminals 51 that correspond to the rear tubular portion 63 protrude from the main body 61 rearward beyond the opening edge of the rear tubular portion 63.

[0021] [connector] Connector 10 includes housing 20, terminals 11, and rubber plugs 30. Housing 20 is made of insulating synthetic resin, and as shown in Fig. 7, includes plate-shaped connecting portion 21, hood portion 22 extending forward from the periphery of connecting portion 21, tower portion 23 extending forward from connecting portion 21 inside hood portion 22, wire accommodating portion 24 extending rearward from connecting portion 21, and locking arm 25 provided on the upper surface of connecting portion 21.

[0022] Terminal 11 is a female terminal made of metal and shaped like a rectangular tube. Terminal 11 is formed into a predetermined shape by known methods such as pressing, cutting, and casting. The metal constituting terminal 11 can be selected from copper, copper alloy, aluminum, aluminum alloy, stainless steel, and other metals as needed. A plating layer may be formed on the surface of terminal 11. The metal constituting the plating layer can be selected from tin, nickel, silver, and other metals as needed.

[0023] 2, the hood portion 22 has a cylindrical hood shape and is open to the front. The back wall of the hood portion 22 is formed by the connecting portion 21. The portion of the hood portion 22 that corresponds to the lock arm 25 bulges upward, and the front end portion of the lock arm 25 is housed in this bulging portion.

[0024] 5, the tower section 23 has a generally rectangular shape that is elongated in the left-right direction when viewed from the front. The tower section 23 has at least one pair (three in this disclosure) of cavities 23A that open in the front-rear direction, and a partition wall 23B that separates adjacent pairs of cavities 23A.

[0025] The partition wall 23B has a partition wall opening 23D that opens forward at the front end portion 23C of the tower section 23. As shown in Fig. 5, the partition wall opening 23D is formed in approximately the same height range as the cavity 23A. The front end portion 23C of the tower section 23 has a pair of upper and lower cutout portions 23F formed by cutting out between the inner wall of the partition wall opening 23D and the outer peripheral surface 23E of the tower section 23. The cutout portions 23F are formed corresponding to the vicinity of the front end of the tower section 23. The partition wall opening 23D is formed to correspond to approximately the entire length of the tower section 23 in the front-to-rear direction.

[0026] 7, the wire accommodating portion 24 accommodates the wire 12 connected to the terminal 11 and the rubber stopper 13 fitted over the wire 12. The wire 12 is of a well-known type, in which an insulating coating surrounds a core wire made of a conductive single-core wire or a thin metal wire. The rubber stopper 13 is sandwiched between the insulating coating of the wire 12 and the inner surface of the wire accommodating portion 24, thereby sealing off the cavity 23A of the tower portion 23.

[0027] A lance 23G is formed on the bottom wall of the cavity 23A. The lance 23G has a cantilevered shape that extends forward. When the terminal 11 is inserted into the cavity 23A from the rear, the lance 23G bends downward, and when the terminal 11 is inserted into the correct position, the lance 23G returns to its original shape and locks onto the terminal 11. This holds the terminal 11 in the tower portion 23 in the cavity 23A.

[0028] Lock arm 25 includes base end 25A rising upward from connecting portion 21, arm portion 25B that can swing around base end 25A, lock engaging portion 25C formed at the front end of arm portion 25B, and release operating portion 25D formed at the rear end of arm portion 25B. Arm portion 25B is connected to base end 25A at a position near its center.

[0029] When connector 10 and mating connector 50 are mated, lock engaging portion 25C rides up onto lock receiving portion 64, causing arm portion 25B to elastically swing, and when lock engaging portion 25C rides over lock receiving portion 64, arm portion 25B elastically returns to its original position, and lock engaging portion 25C engages with lock receiving portion 64. This maintains connector 10 and mating connector 50 in a mated state.

[0030] When release operation portion 25D is pressed downward, the front end portion of arm portion 25B swings upward, releasing the engagement between lock engagement portion 25C and lock receiving portion 64. In this released state, connector 10 and mating connector 50 can be separated by pulling them apart from each other.

[0031] [Rubber stopper] The rubber stopper 30 is an elastic member made of synthetic rubber, natural rubber, or the like, and is formed in a rectangular ring shape with rounded corners, as shown in Figures 10 and 11. The rubber stopper 30 includes a tubular water stopper portion 32, a tubular vibration-resistant portion 33 extending forward from the water stopper portion 32, a plurality of curl-up suppression portions 34 installed across the front end portion of the vibration-resistant portion 33, and a pair of retaining portions 35 formed by protruding from both left and right sides at the rear end of the water stopper portion 32. The water stopper portion 32 and vibration-resistant portion 33 of the rubber stopper 30 are fitted onto the tower portion 23.

[0032] The water stop portion 32 has a lip 31 formed without a break in the circumferential direction of the water stop portion 32. A plurality of lips 31 (two in this disclosure) are arranged side by side in the front-rear direction. As shown in FIG. 7 , the lip 31 has a portion that protrudes radially outward from the outer circumferential surface of the water stop portion 32 and a portion that protrudes radially inward from the inner circumferential surface of the water stop portion 32. When the tower portion 23 is fitted into the front-side tubular portion 62 of the mating housing 60, the water stop portion 32 is sandwiched between the inner circumferential surface 62B of the front-side tubular portion 62 and the outer circumferential surface 23E of the tower portion 23, causing the lip 31 to collapse. In other words, the lip 31 is in close contact with both the inner circumferential surface 62B of the front-side tubular portion 62 and the outer circumferential surface 23E of the tower portion 23, thereby sealing off water between the front-side tubular portion 62 and the tower portion 23.

[0033] The vibration-resistant portion 33 is formed in a cylindrical shape extending forward from the waterproof portion 32 along the outer peripheral surface 23E of the tower portion 23. When the front end portion 23C of the tower portion 23 attempts to vibrate around the lip 31, the vibration is suppressed by the vibration-resistant portion 33. This makes it possible to suppress wear of the contact points between the terminal 11 and the mating terminal 51 due to vibration.

[0034] As shown in Figures 10 and 11, the retaining portion 35 has a pair of protrusions 35A. The protrusions 35A are generally conical in shape. As shown in Figure 5, the connecting portion 21 of the housing 20 is formed with a retaining hole 21A into which the protrusions 35A are attached. The maximum outer diameter of the protrusions 35A is larger than the diameter of the retaining hole 21A. When the protrusions 35A are attached to the retaining hole 21A, the protrusions 35A engage with the edge of the retaining hole 21A from behind, thereby holding the rubber stopper 30 in the housing 20.

[0035] As shown in FIG. 10 , the curling suppression portion 34 is formed in a flat plate shape connecting the upper and lower surfaces of the inner circumferential surface of the front end portion 33A of the vibration-resistant portion 33. The curling suppression portion 34 is elongated in the vertical direction and a pair of curling suppression portions 34 are provided side by side in the left-right direction. The dimension of the curling suppression portion 34 in the front-to-rear direction is longer than the dimension in the left-to-right direction, and the dimension is the same in the vertical direction. As shown in FIGS. 6 and 9 , the curling suppression portion 34 is configured to enter from the front into the partition wall opening 23D and a pair of notches 23F located on both the upper and lower sides thereof and be housed therein. When the connector 10 and the mating connector 50 are mated, if the inner circumferential surface 62B of the front cylindrical portion 62 of the mating housing 60 comes into contact with the front end portion 33A of the vibration-resistant portion 33, causing the rubber stopper 30 to curl up, the curling suppression portion 34 is hooked onto the inner surfaces (rear surfaces) of the pair of notches 23F, thereby preventing the rubber stopper 30 from curling up.

[0036] [Effects of the First Embodiment] The connector 10 of the present disclosure is a connector 10 that can be fitted into a mating connector 50 having a front side tubular portion 62, and includes a housing 20 having a tower portion 23 that can be fitted into the front side tubular portion 62, and a rubber stopper 30 that is fitted onto the tower portion 23, wherein the rubber stopper 30 has an annular water-stopping portion 32 that is arranged between the outer peripheral surface 23E of the tower portion 23 and the inner peripheral surface 62B of the front side tubular portion 62 when the tower portion 23 is fitted into the front side tubular portion 62, a tubular vibration-resistant portion 33 that extends forward from the water-stopping portion 32 along the outer peripheral surface 23E of the tower portion 23, and a curl-up prevention portion 34 that is provided at the front end portion 33A of the vibration-resistant portion 33 and catches on the front end portion 23C of the tower portion 23 to prevent the rubber stopper 30 from curling backward.

[0037] According to the connector 10, the annular water-stopping portion 32 of the rubber stopper 30 can seal water between the front tubular portion 62 and the tower portion 23. If the front tubular portion 62 and the tower portion 23 were in contact only at the lip 31, the front end portion 23C of the tower portion 23 would be prone to vibration around the lip 31. Therefore, the connector 10 includes a cylindrical vibration-resistant portion 33 extending forward from the water-stopping portion 32 along the outer peripheral surface 23E of the tower portion 23, thereby suppressing vibration of the front end portion 23C of the tower portion 23. If such a vibration-resistant portion 33 were provided, there is a risk that the rubber stopper 30 would be turned backward when the tower portion 23 is fitted into the front tubular portion 62. However, in the connector 10, the turn-up suppression portion 34 is provided at the front end portion 33A of the vibration-resistant portion 33. This turn-up suppression portion 34 catches on the front end portion 23C of the tower portion 23, thereby preventing the rubber stopper 30 from being turned backward.

[0038] The tower section 23 has at least one pair of cavities 23A that open in the front-to-rear direction and a partition wall 23B that separates adjacent pairs of cavities 23A, and it is preferable that the curling prevention section 34 is installed on the front end portion 33A of the vibration-resistant section 33 and is capable of contacting the partition wall 23B from the front.

[0039] Generally, the cavities 23A accommodate terminals 11, and therefore, a partition wall 23B is provided between a pair of adjacent cavities 23A to insulate the terminals 11 from each other. By utilizing such partition wall 23B, the curling-up suppression portion 34 comes into contact with the partition wall 23B from the front, thereby preventing the rubber plug 30 from curling up backward.

[0040] The partition wall 23B has a partition wall opening 23D that opens forward, and the curling suppression portion 34 preferably enters the partition wall opening 23D from the front.

[0041] In order to prevent sink marks and the like from occurring during molding of the partition wall 23B, a partition wall opening 23D for lightening may be provided in the partition wall 23B. By utilizing such a partition wall opening 23D, the turn-up suppression portion 34 enters the partition wall opening 23D of the partition wall 23B from the front, thereby further suppressing the rubber stopper 30 from turning backward.

[0042] The front end portion 23C of the tower section 23 has a notch 23F formed by cutting out the space between the inner wall of the partition opening 23D and the outer peripheral surface 23E of the tower section 23, and it is preferable that the curling suppression section 34 enters the partition opening 23D and the notch 23F from the front.

[0043] By inserting the curling suppression portion 34 into the partition opening 23D and the notch 23F, the curling suppression portion 34 is firmly caught on the front end portion 23C of the tower portion 23.

[0044] <Embodiment 2> A second embodiment of the present disclosure will be described with reference to Fig. 12. The second embodiment is a modification of the rubber stopper 30 of the first embodiment. In the configuration of the rubber stopper 40 of the second embodiment, the same components as those of the rubber stopper 30 of the first embodiment are denoted by the same reference numerals, and their description may be omitted.

[0045] The rubber stopper 40 is an elastic member made of synthetic rubber, natural rubber, or the like, and is formed in a rectangular ring shape with rounded corners. The rubber stopper 40 includes a tubular water stopper 32, a tubular vibration-resistant portion 43 extending forward from the water stopper 32, a plurality of curl-up suppression portions 34 mounted on a front end portion 43A of the vibration-resistant portion 43, and a pair of retaining portions 35 formed by projecting from both left and right sides at the rear end of the water stopper 32.

[0046] A plurality of protrusions 46 are integrally formed on the outer peripheral surface of the vibration-resistant portion 43, extending in the front-to-rear direction. The plurality of protrusions 46 are provided at intervals from one another in the circumferential direction of the vibration-resistant portion 43. The protrusions 46 are formed linearly from the front end portion 43A to the rear end portion 43B of the vibration-resistant portion 43. The protrusions 46 are formed in the shape of a trapezoidal block when viewed from a direction perpendicular to the front-to-rear direction.

[0047] In detail, the protrusion portion 46 has a front tapered surface 46A that slopes away from the outer peripheral surface 43C of the vibration-resistant portion 43 as it extends rearward from the front end portion 43A of the vibration-resistant portion 43, a flat surface 46B that extends rearward from the rear end of the front tapered surface 46A parallel to the outer peripheral surface 43C of the vibration-resistant portion 43, and a rear tapered surface 46C that slopes toward the outer peripheral surface 43C of the vibration-resistant portion 43 as it extends rearward from the rear end of the flat surface 46B, and reaches the rear end portion 43B of the vibration-resistant portion 43.

[0048] As described above, in this embodiment, multiple protrusions 46 are provided on the outer peripheral surface 43C of the vibration-resistant portion 43, extending in the front-to-rear direction, and the multiple protrusions 46 are provided at intervals from each other in the circumferential direction of the vibration-resistant portion 43.

[0049] When the tower portion 23 is fitted into the front side tubular portion 62, the multiple protrusion portions 46 come into contact with the inner surface 62B of the front side tubular portion 62, resulting in a smaller contact area than when the tower portion 23 is in contact with the inner surface 62B of the front side tubular portion 62 over the entire circumference, reducing the frictional force generated between the front side tubular portion 62 and the vibration-resistant portion 43 and reducing the force required for fitting.

[0050] [Other embodiments] (1) In the above embodiment, the waterproof portion 32 has the lip 31, but the waterproof portion may not have a lip.

[0051] (2) In the above embodiment, the curling suppression portion 34 is bridged across the front end portion 33A of the vibration-resistant portion 33, but the curling suppression portion may be formed to protrude radially inward from the front end portion 33A of the vibration-resistant portion 33. In other words, the curling suppression portion does not have to connect any two points on the front end portion 33A of the vibration-resistant portion 33.

[0052] (3) In the above embodiment, the curling suppression portion 34 is illustrated as entering the partition opening 23D and the pair of cutouts 23F from the front, but if there is no partition opening or cutouts, the curling suppression portion may abut against the front end portion of the tower portion from the front.

[0053] (4) In embodiment 2, the contact area is reduced by providing the protrusion 46. However, the vibration-resistant portion may be formed to be thicker than the vibration-resistant portion 33 in embodiment 1, and the contact area may be reduced by forming a groove in this vibration-resistant portion. [Explanation of symbols]

[0054] 10: Connector 11: Terminal 12: Electric wire 13: Rubber plug 20: Housing 21: Connection portion 21A: Removal prevention hole 22: Hood portion 23: Tower portion 23A: Cavity 23B: Partition wall 23C: Front end portion 23D: Partition wall opening 23E: Outer periphery 23F: Notch portion 23G: Lance 24: Wire accommodating portion 25: Lock arm 25A: Base end portion 25B: Arm portion 25C: Lock engaging portion 25D: Release operation portion 30: Rubber stopper 31: Lip 32: Water stopper 33: Vibration resistant part 33A: Front end part 34: Curling prevention part 35: Retaining part 35A: Protrusion 40: Rubber stopper 43: Vibration-resistant portion 43A: Front end portion 43B: Rear end portion 43C: Outer circumferential surface 46: Protrusion portion 46A: Front tapered surface 46B: Flat surface 46C: Rear tapered surface 50: Mating connector 51: Mating terminal 60: Mating housing 61: Main body 61A: Outer peripheral surface 62: Front cylinder (mating hood) 62A: Outer peripheral surface 62B: Inner peripheral surface 63: Rear cylinder 63A: Outer peripheral surface 64: Lock receiving portion 65: Protective wall 66: Flange 100: Connector unit

Claims

1. A connector that can be fitted to a mating connector having a mating hood portion, a housing having a tower portion that can be fitted into the mating hood portion; a rubber plug fitted to the tower portion, The rubber stopper has an annular water stopping portion disposed between the outer peripheral surface of the tower portion and the inner peripheral surface of the mating hood portion when the tower portion is fitted into the mating hood portion, a cylindrical vibration-resistant portion extending forward from the water stopping portion along the outer peripheral surface of the tower portion, and a curl-up prevention portion provided at the front end portion of the vibration-resistant portion and hooked onto the front end portion of the tower portion to prevent the rubber stopper from curling backward, A connector wherein the tower portion has at least a pair of cavities that open in the front-to-rear direction and a partition wall that separates adjacent pairs of cavities, and the curl-up suppression portion is capable of contacting the partition wall from the front.

2. A connector that can be mated with a mating connector having a mating hood portion, a housing having a tower portion that can be fitted into the mating hood portion; a rubber plug fitted to the tower portion, The rubber stopper has an annular water stopping portion disposed between the outer peripheral surface of the tower portion and the inner peripheral surface of the mating hood portion when the tower portion is fitted into the mating hood portion, a cylindrical vibration-resistant portion extending forward from the water stopping portion along the outer peripheral surface of the tower portion, and a curl-up prevention portion provided at the front end portion of the vibration-resistant portion and hooked onto the front end portion of the tower portion to prevent the rubber stopper from curling backward, A connector in which the tower portion has at least a pair of cavities that open in the front-to-rear direction and a partition wall that separates adjacent pairs of cavities, and the curling-up suppression portion is installed on the front end portion of the vibration-resistant portion and can contact the partition wall from the front.

3. The connector according to claim 2 , wherein the partition has a partition opening that opens forward, and the curling suppression portion enters the partition opening from the front.

4. 4. The connector of claim 3, wherein the front end portion of the tower portion has a notch formed by cutting out between the inner wall of the partition opening and the outer peripheral surface of the tower portion, and the curl-up suppression portion enters the partition opening and the notch from the front.

5. A connector as described in any one of claims 1 to 4, wherein a plurality of protrusions are provided on the outer peripheral surface of the vibration-resistant portion, extending in the front-to-rear direction, and the plurality of protrusions are provided at intervals from each other in the circumferential direction of the vibration-resistant portion.

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