JP4941744B2 - Waterproof connector - Google Patents

Description

  The present invention relates to a waterproof connector provided with a seal member.

Conventionally, as a waterproof connector provided with a sealing member that seals between a mating connector and the like, for example, the one described in Patent Document 1 is known. This waterproof connector is composed of two parts, an inner housing and an outer housing, which are assembled so as to be relatively slidable in the front-rear direction (fitting direction with the mating connector). A waterproof packing is provided at the front end of the inner housing. (Seal member) is fitted. When the waterproof connector comes into a proper fitting state with the mating connector, the waterproof packing is sandwiched between the inner housing and the hood portion of the mating connector to seal between them.
JP 2006-24456 A

By the way, in said connector, in order to prevent rattling between connectors by vibration etc., a pair of metal coil springs are provided. The pair of coil springs includes the inner housing and the outer end in a state where the front end portion and the rear end portion are accommodated in the spring accommodating hole formed in the rear portion of the inner housing and the spring accommodating hole formed in the rear wall of the outer housing, respectively. Mounted between the housing.
When the waterproof connector reaches a proper mating state with the mating connector, the pair of coil springs are elastically contracted between the inner housing and the outer housing, and the inner housing is biased to the mating side by the elastic force. It is kept in the state that was done. As a result, rattling between connectors is suppressed, and wear between terminals is prevented.
However, according to such a configuration, in addition to the waterproof packing for sealing between the connectors, a coil spring for suppressing rattling between the connectors is necessary, and there is a problem that the number of parts is large.

  The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a waterproof connector capable of reducing the number of components while preventing rattling between connectors.

The waterproof connector according to the present invention includes an inner housing that can be fitted in a hood portion of a mating connector and that can be connected to a mating terminal disposed in the hood portion, and the mating connector with respect to the inner housing. An outer housing that is slidably assembled in the fitting direction with the side connector, and an outer peripheral surface of the inner housing is provided with a flange portion that protrudes outward from the outer peripheral surface. A through-hole that penetrates in the mating direction with the mating connector is formed in the portion, and the outer housing has the flange portion on the rear side in the mating direction with the mating connector rather than the flange portion. Opposing walls are provided so as to face each other, and a rubber member is mounted on the inner housing, and the inner housing is provided with the rubber member. A substantially cylindrical seal portion that can be fitted to the front side in the fitting direction with respect to the mating connector with respect to the flange portion of the outer peripheral surface of the groove, and the through hole provided integrally with the seal portion. A leg portion having a shape that can be penetrated rearward in the fitting direction with the mating connector, and is integrally provided with the leg portion, and is engaged with the peripheral edge portion of the through-hole from the rear in the fitting direction with the mating connector. A stopper is provided between the flange and the opposing wall in a possible shape, and the outer side of the stopper is between the flange and the opposing wall. A space is provided that allows the ratchet portion to spread outward, and the ratchet portion is characterized in that it is pressed by the flange portion and the opposing wall and spreads into the space .

  According to such a configuration, when the waterproof connector is properly fitted with the mating connector, the seal portion of the rubber member is in close contact with the outer peripheral surface of the hood portion and the inner housing, and the space between the seal portion is sealed. Further, the ratchet stopper is pressed between the flange portion and the opposing wall and elastically contracts, and the inner housing is pressed forward in the fitting direction with the mating connector by the elastic force, so that the back and forth direction rattles. The sticking is prevented. In this way, since one rubber member has a seal portion that seals between the connectors and a stopper portion that prevents rattling between the connectors, the component is compared with the case where these are separate components. The number of points can be reduced.

The flange portion may be provided over the entire circumference of the inner housing, and a plurality of the through holes may be formed at a plurality of positions surrounding the entire circumference of the inner housing. Accordingly, rattling is performed at a position surrounding the entire circumference of the inner housing.

  A rear inclined surface is formed at the rear edge in the fitting direction with the mating connector among the ratchet stoppers, so that the protruding dimension from the leg portion decreases toward the rear in the fitting direction. It is good also as what is done. According to such a configuration, when the rubber member is mounted, the ratchet portion can be inserted relatively smoothly without being caught by the front edge portion of the through hole due to the inclination of the rear inclined surface.

  In addition, a front inclined surface having an inclination that the protrusion dimension from the leg portion becomes smaller toward the front in the fitting direction is formed on the edge portion on the front side in the fitting direction with the mating connector in the ratchet portion. It is good also as what is done. According to such a configuration, when the rubber member is removed, the ratchet portion can be pulled out relatively smoothly without being caught by the rear edge portion of the through hole due to the inclination of the front inclined surface.

  Furthermore, an inductive surface is formed on the peripheral edge of the through hole on the front side in the fitting direction with the mating connector so as to increase the opening width dimension of the through hole toward the front in the fitting direction. It may be a thing. Thereby, since the ratchet stopper is guided by the inclination of the guide surface and inserted into the through-hole, the rubber member can be easily attached.

The flange portion is formed with an annular groove into which an annular rib formed at the opening end of the hood portion is inserted, and the annular groove is provided with a protrusion that is pressed inward and outward by the annular rib. It may be a thing.
Further, the outer housing may be provided with a lock mechanism that engages with the mating connector in a fitting direction with the mating connector.

  ADVANTAGE OF THE INVENTION According to this invention, the waterproof connector which can aim at reduction of a number of parts can be provided, preventing rattling between connectors.

Embodiments of the present invention will be described below with reference to FIGS.
The waterproof connector in the present embodiment is a female connector (hereinafter referred to as a female connector 10), and can be fitted to a male connector 50 (corresponding to the mating connector of the present invention).
Hereinafter, in each component member, the fitting surface side of both connectors 10 and 50 will be referred to as the front, and the upper side in FIG. 1 will be referred to as the upper side and the lower side as the lower side.

  The male connector 50 includes two male terminals 51 (corresponding to the mating terminal of the present invention) that are long in the front-rear direction, and a male housing 52 that holds the male terminals 51. The male housing 52 is made of synthetic resin, and includes a terminal holding portion 53 that holds the male terminal 51 in a posture that penetrates in the front-rear direction, and a cylindrical hood portion 54 that protrudes forward from the periphery of the terminal holding portion 53. It is configured.

  The hood portion 54 has a slightly horizontally long shape that surrounds a portion of the male terminal 51 that protrudes forward from the terminal holding portion 53 and opens forward. An annular rib 55 that protrudes forward in a ring shape is provided at the open end (front end) of the hood portion 54. Further, a lock projection 56 projects from the upper surface of the hood portion 54.

  A plurality of protrusions 57 are provided on the back side (the rear side in the fitting direction) of the inner peripheral surface of the hood portion 54. Each protrusion 57 is provided at a total of six locations, one pair on the upper and lower surfaces and one pair on both side surfaces of the inner peripheral surface of the hood portion 54.

  The female connector 10 includes a female terminal 11 (corresponding to the terminal of the present invention) that can be connected to the male terminal 51. The female terminal 11 as a whole has a shape that is long in the front-rear direction, and is provided with a substantially box-shaped connecting portion 11A that can be connected to the male terminal 51 on the front side and a barrel portion 11B on the rear side. A rubber plug 12 for electric wire is crimped to the barrel portion 11B together with the end of the electric wire W. The rubber plug 12 for electric wires is in close contact with the inner peripheral surface of the terminal accommodating chamber 14 to be described later, and waterproofs the terminal accommodating chamber 14.

  The female connector 10 includes an inner housing 13 that can accommodate the female terminals 11 and can be fitted into the hood portion 54 of the male connector 50. The inner housing 13 is made of synthetic resin and has a substantially block shape that is long in the front-rear direction.

  In the inner housing 13, two terminal accommodating chambers 14 into which the female terminals 11 can be inserted from behind are formed side by side. A lance 16 that protrudes in a cantilevered manner toward the front is provided on the lower wall of each terminal accommodating chamber 14. The rear end portion of the inner housing 13 is a terminal insertion portion 15 that communicates with each terminal accommodating chamber 14 and has cylindrical portions arranged side by side.

  A plurality of ratchet ribs 22 project from the outer peripheral surface at the front portion of the inner housing 13. The ratchet retaining ribs 22 are integrally formed on the outer peripheral surface of the inner housing 13, and are provided at a total of six positions corresponding to the protrusions 57 of the male housing 52.

  A retainer mounting portion 17 is provided at a position slightly rearward of the center portion of the inner housing 13 in the front-rear direction. The retainer mounting portion 17 communicates with each terminal accommodating chamber 14 and opens on the lower surface side of the inner housing 13.

  The retainer 18 mounted on the retainer mounting portion 17 is a so-called side-type retainer 18, which is formed of a synthetic resin material. 11 is engaged with the connecting portion 11A from the rear to prevent the female terminal 11 from being pulled out. An accommodation recess 19 is formed in a portion from the lower end edge to both side edges of the rear end portion of the retainer 18 so as to surround the position of the outer circumference of the inner housing 13 and open to the rear. .

  The rear portion of the retainer mounting portion 17 in the outer peripheral surface of the inner housing 13 is a fitting portion 21 to which a seal portion 41 of a rubber member 40 described later is fitted. The cross-sectional shape (cross-sectional shape perpendicular to the front-rear direction) of the fitting portion 21 is a slightly oblong, substantially rectangular shape, the outer peripheral surface is a flat surface without irregularities, and the four corners are arc-shaped. ing.

  At the rear position of the inner housing 13 (specifically, the position on the front side of the terminal insertion portion 15 and the rear side of the fitting portion 21), the inner housing 13 is provided outside (both connectors 10, 50) from the outer peripheral surface to the entire circumference. The flange part 23 which protrudes in a direction orthogonal to the fitting direction is provided.

  An annular groove 24 into which the annular rib 55 can be inserted is formed on the front surface of the flange portion 23. The annular groove 24 has a slightly horizontally long ring shape surrounding the entire circumference of the inner housing 13 (see FIG. 3). A plurality of protrusions 25 that are pressed by the annular rib 55 are provided on the outer surface 24 </ b> A of the peripheral surface constituting the annular groove 24. The protrusions 25 are disposed at positions that are opposed to each other at two positions on the upper, lower, left, and right sides of the annular groove 24 in total, in other words, at positions that surround the entire circumference of the inner housing 13.

  The rear surface of the flange portion 23 is a flat surface (hereinafter referred to as a first pressing surface 23 </ b> A) that has no irregularities and is substantially perpendicular to the outer peripheral surface of the inner housing 13.

  A through hole 26 is formed on the base side of the flange portion 23 that is continuous with the inner housing 13. The through holes 26 are formed at four positions on the upper side, the lower side, the left side, and the right side of the inner housing 13 in the flange portion 23, that is, positions that surround the entire circumference of the inner housing 13 (see FIG. 3). The through hole 26 arranged on the upper side and the lower side of the inner housing 13 is located in the center in the width direction of the inner housing 13, and the through hole 26 arranged on the left side and the right side is in the height direction of the inner housing 13. Located in the center of

Each through-hole 26 has a substantially rectangular cross-sectional shape that is long in the circumferential direction of the inner housing 13, and penetrates the flange portion 23 in the front-rear direction. The inner surface (inner housing 13 side) of the peripheral surfaces of each through hole 26 is flush with the outer peripheral surface of the inner housing 13.
A guide surface 27 is formed at the opening edge of the front side of each through hole 26. The guide surfaces 27 are formed at both ends of each through hole 26 in the longitudinal direction, and are inclined to gradually increase the width dimension in the longitudinal direction of the through hole 26 (opening width dimension of the through hole 26) toward the front. .

  The female connector 10 includes an outer housing 31 that covers the inner housing 13. The outer housing 31 is separated from the inner housing 13 and is assembled to be slidable in the front-rear direction relative to the inner housing 13.

  The outer housing 31 is made of synthetic resin, has an outer shape that is slightly larger than the flange portion 23, and is opposed to the rear side of the flange portion 23. It is comprised by the outer cylinder part 33 which makes the shape and protrudes ahead. Between the outer cylinder part 33 and the inner housing 13, the space | interval which can fit the hood part 54 of the male connector 50 is provided.

  The opposing wall 32 is formed with a loose insertion hole 34 through which the terminal insertion portion 15 of the inner housing 13 can be loosely inserted in the front-rear direction. The front surface of the facing wall 32 is a flat surface (hereinafter referred to as a second pressing surface 32A) that faces the first pressing surface 23A of the flange portion 23 in substantially parallel to the first pressing surface 23A.

  The outer housing 31 is provided with a lock arm 35 (corresponding to the lock mechanism of the present invention) that engages with the lock protrusion 56 of the male connector 50 and locks both the connectors 10 and 50 in a proper fitting state. Yes.

  A rubber member 40 is attached to the inner housing 13. The rubber member 40 has a shape that is long in the front-rear direction, and a substantially front half portion of the rubber member 40 is a horizontally long substantially cylindrical seal portion 41 that can be fitted onto the fitting portion 21 of the inner housing 13. The front-rear direction dimension of the seal part 41 is substantially equal to the front-rear direction dimension of the fitting part 21 (from the front surface of the flange part 23 to the rear side position of the retainer mounting part 17). The seal portion 41 has a shape in which the center portion in the front-rear direction bulges outward in the radial direction, and the front end portion and the rear end portion are thinned. The front end portion (thinned portion) of the seal portion 41 is housed in the housing recess 19 of the retainer 18 mounted at the final locking position, and the rubber member 40 is reliably prevented from coming out forward. Is done. A lip portion 42 for improving the waterproof effect is formed at a substantially central position in the front-rear direction on the inner peripheral surface of the seal portion 41. When the rubber member 40 is mounted on the inner housing 13, the seal portion 41 bulges outward while the front and rear end portions and the lip portion 42 of the inner peripheral surface are in close contact with the outer peripheral surface of the fitting portion 21. The portion protrudes forward of the annular groove 24.

  A substantially second half portion of the rubber member 40 is a leg portion 43 that is provided integrally with the seal portion 41 and extends rearward. The leg portion 43 has a shape capable of penetrating the through-hole 26 rearward, and one leg at each of the peripheral portions of the seal portion 41 corresponding to the through-hole 26 (upper and lower left and right positions of the seal portion 41), for a total of four. Legs are provided (see FIG. 4).

  Each leg portion 43 has a cross-sectional shape that is horizontally long in the circumferential direction of the seal portion 41 (a cross-sectional shape in a direction substantially perpendicular to the front-rear direction) and is equal to or slightly larger than the cross-sectional shape of the through hole 26. When each leg 43 is viewed inward and outward, it has a substantially rectangular shape that is long in the front-rear direction (see FIGS. 5 and 6). Each leg portion 43 has a plate shape, and the thickness dimension in the inner and outer directions is approximately equal to the thickness dimension of the front and rear end portions of the seal portion 41 which are made thinner. The inner surface of each leg portion 43 is flush with the inner peripheral surface of the seal portion 41.

  A ratchet stop 44 is provided in a substantially rear half portion of each leg 43 in the front-rear direction. The ratchet stopper 44 is provided integrally with the leg 43 and protrudes outward (in the direction intersecting with the fitting direction). Each ratchet 44 is formed over the entire width of each leg 43, and when the ratchet 44 is viewed from the inside and outside, it has a substantially rectangular shape that is slightly longer in the width direction. The ratchet stopper 44 has a shape that projects from the outer surface of the leg 43 by a dimension approximately equal to the thickness dimension of the leg 43 in the inner and outer directions, that is, substantially the latter half of the ratchet stopper 44 and the leg 43. The thickness dimension in the inner / outer direction combined with the portion is approximately twice the opening dimension (height dimension) in the inner / outer direction of the through hole 26. When the substantially second half portion of the leg portion 43 (the portion where the ratchet 44 is formed) penetrates the through hole 26 rearward, the ratchet 44 engages with the peripheral edge of the through hole 26 from the rear. It becomes a state. In addition, the position of the protruding end surface of the ratchet stopper 44 is arranged slightly inside the position of the outermost surface of the bulging portion of the seal portion 41.

  The front edge portion of each ratchet 44 is formed with an inclined front side inclined surface 45 whose projection size decreases toward the front, and the rear edge portion is inclined such that the projection size decreases toward the rear. A rear inclined surface 46 is formed. Both front and rear inclined surfaces 45 and 46 are formed over the entire width of each ratchet stop 44. All the leg portions 43 and the ratchet portions 44 arranged on the top, bottom, left, and right of the seal portion 41 have substantially the same shape.

Next, the fitting of the rubber member 40 to the inner housing 13 will be described.
The rubber member 40 is fitted from the front to the inner housing 13 where the retainer 18 is not attached. First, the rubber member 40 is oriented so that the seal portion 41 is on the front side and the back stopper portion 44 is on the rear side, so that the four leg portions 43 are along the outer peripheral surface of the inner housing 13. The inner end of the inner housing 13 is mounted on the front end of the inner housing 13 such that the front end of the inner housing 13 is disposed inside the leg 43. When the rubber member 40 is moved rearward, the inner peripheral surface of each leg portion 43 and the inner peripheral surface of the seal portion 41 move rearward along the outer peripheral surface of the inner housing 13, and The rear inclined surface 46 contacts the front edge of the through hole 26. Further, both end portions in the width direction of each ratchet stop portion 44 are in contact with the guide surface 27 of the through-hole 26.

  When the rubber member 40 is pushed backward from this state, the rear inclined surface 46 of the ratchet stopper 44 is gradually pushed inward by contact with the front end edge of the through-hole 26, and the ratchet stopper 44 is accompanied accordingly. The rear end of the squeezes inward. Further, both end portions in the width direction of the ratchet stop portion 44 are gradually pushed inward in the width direction by the guide surface 27, and accordingly, the dimension in the width direction of the ratchet stop portion 44 is gradually reduced. The ratchet stop 44 is elastically contracted to a size that can be accommodated in the through hole 26, and when the ratchet stopper 44 penetrates the through hole 26 rearward, it is restored and is engaged with the peripheral edge of the through hole 26 from the rear. To do.

  In this way, when the ratchet 44 is passed through the through hole 26 of the flange 23, the ratchet 44 is moved in front of the through hole 26 by the inclination of the rear inclined surface 46 and the guide surface 27 of the through hole 26. The rubber member 40 can be easily attached because it is elastically contracted little by little without being caught on the edge and smoothly inserted.

  Further, when removing the rubber member 40 from the inner housing 13, the front inclined surface 45 of the stopper 44 that pulls the rubber member 40 forward is gradually pushed inward by contact with the rear edge of the through-hole 26. Accordingly, the front end portion of the ratchet stop portion 44 is gradually crushed inward, and the ratchet stop portion 44 is smoothly pulled out without being caught by the rear edge of the through hole 26. Accordingly, since the front-side inclined surface 45 is provided in the ratchet stop portion 44, the work of removing the rubber member 40 can be easily performed.

Next, the fitting of both the connectors 10 and 50 will be described.
When the connectors 10 and 50 are brought close to each other, the front end portion of the inner housing 13 is inserted into the hood portion 54, and the hood portion 54 is inserted between the inner housing 13 and the outer cylinder portion 33 of the outer housing 31. It will be done. The ratchet rib 22 of the inner housing 13 comes into contact with the protruding end of the protruding portion 57 of the hood portion 54 and is pressed, and the male terminal 51 enters the connecting portion 11A of the female terminal 11. To go.

  When the connectors 10 and 50 are further pressed in the approaching direction, the tip of the hood portion 54 reaches the outer position of the seal portion 41 of the rubber member 40, and the inner portion of the bulge portion of the seal portion 41 is crushed inward while being crushed inward. Proceed with The annular rib 55 of the hood portion 54 is inserted into the annular groove 24 of the flange portion 23 while being pushed outward by the elastic restoring force of the seal portion 41, and is accommodated in the annular groove 24 in a state where the projection portion 25 is pressed. .

  Further, when both connectors 10 and 50 are pressed in the approaching direction, the tip of the hood portion 54 presses the flange portion 23 backward, and the ratchet portion 44 disposed between the flange portion 23 and the opposing wall 32 includes: The first pressing surface 23A and the second pressing surface 32A are pressed and elastically contracted.

  When the outer housing 31 advances relatively with respect to the inner housing 13 and both the connectors 10 and 50 reach the proper fitting state, the distal end portion of the lock arm 35 gets over the lock projection 56 and elastically returns. Then, the lock arm 35 and the lock projection 56 are engaged in the front-rear direction, and both the connectors 10 and 50 are locked in a proper fitting state (see FIG. 1). Further, the seal portion 41 of the rubber member 40 is in close contact with the inner peripheral surface of the hood portion 54 and the outer peripheral surface of the inner housing 13 and is sealed between these. Furthermore, the substantially latter half of the ratchet 44 and the leg 43 is pressed against the flange 23 and the opposing wall 32 and elastically contracts, and the elastic force causes the inner housing 13 (specifically, the first pressing surface of the flange 23). 23A) is pressed forward (terminal holding portion 53 side), and rattling in the front-rear direction is prevented. Further, the outer housing 31 (specifically, the second pressing surface 32A of the opposing wall 32) is pressed rearward (in the direction of engagement with the lock projection 56 of the lock arm 35) by the elastic force of the ratchet stop 44. This prevents back and forth rattling in the lock portion.

  Thus, the rubber member 40 can prevent the seal between the connectors 10 and 50 from rattling. Accordingly, the number of parts can be reduced as compared with the case where a seal member for sealing between the connectors 10 and 50 and a ratchet member for rattling are each provided as separate parts. Can do.

  In addition, when the ratchet stopper 44 is pressed between the inner housing 13 and the outer housing 31, it extends along the first pressing surface 23A and the second pressing surface 32A. As a result, the contact pressure acting on the flange portion 23 and the facing wall 32 is dispersed and reduced as compared with the case where, for example, a metal spring member is used instead, so that it is not necessary to take a countermeasure against creep.

  In addition, as a structure for attaching the rubber member 40 to the inner housing 13, it is only necessary to provide the through hole 26 in the hood portion 54. For example, in order to use a metal spring member, the inner housing and the outer housing are used. The structure of the inner housing 13 and the outer housing 31 can be simplified as compared with the case where the spring accommodating holes and the like for accommodating the front end portion and the rear end portion of the spring member are formed respectively.

  The through hole 26 is formed at a position surrounding the entire circumference of the inner housing 13, and a ratchet 44 is disposed at a position corresponding to the through hole 26. As a result, it is possible to prevent back and forth rattling between the connectors 10 and 50 at a position surrounding the entire circumference of the inner housing 13. Further, since the outer shape of all the ratchet stoppers 44 and the leg parts 43 are substantially equal, that is, the rigidity of the elastically contracting portions of the rattle stoppers 44 and the leg parts 43 is substantially equal, the entire circumference of the inner housing 13 Since substantially the same elastic force acts at the four locations that surround the surface, it is possible to prevent rattling without unevenness.

  The annular rib 55 is pressed against the outer surface of the annular groove 24 by the elastic force of the seal portion 41 and bites into the protrusion 25, and the annular rib 55 and the annular groove 24 are firmly fixed over the entire circumference. Retained.

  Further, at the front end portion of the inner housing 13, all the ratchet ribs 22 are in close contact with the protruding portion 57 of the hood portion 54, and rattling between the inner housing 13 and the hood portion 54 is restricted. . In this way, rattling between the male housing 52 and the inner housing 13 is restricted on both the front and rear sides of the inner housing 13 (front and rear sides of the connecting portion of both terminals 11, 51). , 50 can be prevented from rubbing between the terminals 11 and 51 even when subjected to strong vibration.

  As described above, according to the present embodiment, when the female connector 10 reaches a normal fitting state with the male connector 50, the seal portion 41 of the rubber member 40 is connected to the inner peripheral surface of the hood portion 54 and the outer periphery of the inner housing 13. It will be in close contact with the surface and sealed in between. Further, the ratchet stop 44 is pressed against the flange 23 and the opposing wall 32 and elastically contracts, and the inner housing 13 is pressed forward by the elastic force, thereby preventing the rattling in the front-rear direction. . Thus, the one rubber member 40 includes the seal portion 41 that seals between the connectors 10 and 50 and the stopper portion 44 that prevents rattling between the connectors 10 and 50. The number of parts can be reduced as compared with the case where these are separate parts. Therefore, it is possible to reduce the number of parts while securing the sealing property between the connectors 10 and 50 and preventing rattling between the connectors 10 and 50.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above-described embodiment, the inner surface of the peripheral surfaces of each through hole 26 is flush with the outer peripheral surface of the inner housing 13, and the leg portion 43 extends flush with the inner peripheral surface of the seal portion 41. However, the present invention is not limited to this, as long as the through-hole penetrates the flange portion in the front-rear direction, the position and shape of the inside and outside directions may be whatever, and the leg portion is located behind the through-hole. Any shape may be used as long as it can penetrate through.

(2) In the above embodiment, the through-hole 26 is formed at a position surrounding the entire circumference of the inner housing 13, but is not limited to this, for example, only the upper and lower sides of the inner housing, or only the left and right sides Or the like.
(3) In the above embodiment, the front stopper surface 44 is formed with the front inclined surface 45 and the rear inclined surface 46. However, neither of them may be formed, or only one of them may be formed. .

(4) In the above embodiment, the guide surface 27 is formed in the through hole 26, but the guide surface is not necessarily formed.
(5) Although the annular groove 24 is formed in the flange portion 23 in the above embodiment, the annular groove is not necessarily formed.

  (6) In the said embodiment, although the flange part 23 is provided over the perimeter of the inner housing 13, it is not restricted to this, For example, you may provide intermittently in the circumferential direction of the inner housing.

Side sectional view showing a normal fitting state between the female connector and the male connector in the present embodiment Side sectional view of female connector Front view of female connector Front view of rubber member Side view of rubber member Top view of rubber member

Explanation of symbols

10 ... Female connector (waterproof connector)
11 ... Female terminal (terminal)
DESCRIPTION OF SYMBOLS 13 ... Inner housing 23 ... Flange part 24 ... Ring groove 25 ... Projection part 26 ... Through-hole 27 ... Guide surface 31 ... Outer housing 32 ... Opposite wall 35 ... Lock arm (lock mechanism)
DESCRIPTION OF SYMBOLS 40 ... Rubber | gum member 41 ... Seal part 43 ... Leg part 44 ... Back part 45 ... Front side inclined surface 46 ... Rear side inclined surface 50 ... Male connector (mating side connector)
51 ... Male terminal (mating terminal)
54 ... Hood part 55 ... Annular rib

Claims (7)

An inner housing that can be fitted in the hood portion of the mating connector and that can be connected to the mating terminal disposed in the hood portion, and a fitting direction of the mating connector with respect to the inner housing An outer housing assembled to be slidable relative to the
A flange portion that protrudes outward from the outer peripheral surface is provided on the outer peripheral surface of the inner housing, and a through-hole that penetrates in the fitting direction with the mating connector is formed in the flange portion. The outer housing is provided with a facing wall that is arranged to face the flange portion on the rear side in the fitting direction with the mating connector rather than the flange portion,
A rubber member is attached to the inner housing, and the rubber member has a substantially cylindrical shape that can be fitted to the front side in the fitting direction with the mating connector with respect to the flange portion on the outer peripheral surface of the inner housing. A seal portion, a leg portion integrally formed on the seal portion and having a shape capable of penetrating the through-hole to the rear in a fitting direction with the mating connector; and a leg portion integrally provided with the leg portion A stop portion disposed between the flange portion and the opposed wall in a shape that can be engaged from the rear in the fitting direction with the mating connector on the peripheral portion of the through-hole is provided ,
A space is provided on the outer side of the ratchet part to allow the ratchet part to spread outward between the flange part and the opposing wall, and the ratchet part is connected to the flange part. A waterproof connector, wherein the connector is pressed against the facing wall and spreads in the space . 2. The waterproofing according to claim 1, wherein the flange portion is provided over the entire circumference of the inner housing, and a plurality of the through holes are formed at a plurality of positions surrounding the entire circumference of the inner housing. connector. A rear inclined surface is formed at the rear edge in the fitting direction with the mating connector among the ratchet stoppers, so that the protruding dimension from the leg portion decreases toward the rear in the fitting direction. The waterproof connector according to claim 1 or 2, wherein the waterproof connector is provided. A front inclined surface having a slope that reduces the projecting dimension from the leg portion toward the front in the fitting direction is formed at the edge of the ratchet portion on the front side in the fitting direction with the mating connector. The waterproof connector according to any one of claims 1 to 3, wherein the waterproof connector is provided. In the peripheral edge of the through hole in the front side in the fitting direction with the mating connector, an inductive surface is formed to increase the opening width dimension of the through hole toward the front in the fitting direction. The waterproof connector according to any one of claims 1 to 4, wherein the waterproof connector is characterized in that: The flange portion is formed with an annular groove into which an annular rib formed at the opening end of the hood portion is inserted, and the annular groove is provided with a protrusion that is pressed inward and outward by the annular rib. The waterproof connector according to any one of claims 1 to 5, wherein the waterproof connector is provided. 7. The outer housing is provided with a lock mechanism that is engaged with the mating connector in a fitting direction with the mating connector. Waterproof connector as described in.

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