• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A seal (30) for mounting on a rear portion of a housing 20 and having seal ports (32) configured to allow passage through cables (26) connected to rear ends of terminal fittings (24) in a liquid-tight manner. The seal (30) has a body (31) forming rear regions (32R) of the seal ports (32) and having an outer peripheral lip (37) formed on an outer periphery. An area between inner peripheries of the seal ports (32) and the outer peripheral lip (37) defines a solid elastic portion (39). Follower portions (40) extend forwardly of the outer peripheral lip (37) from a front surface of the body (31). The follower portions (40) constitute front regions (32F) of the seal ports (32) and can be resiliently deformed in directions intersecting a direction of penetration of the seal ports (32).
    公开号:FR3053167A1
    申请号:FR1755190
    申请日:2017-06-09
    公开日:2017-12-29
    发明作者:Yoshihiro Uchiyama；Ryotaro Ishikawa
    申请人:Sumitomo Wiring Systems Ltd；
    IPC主号:
    专利说明:

    The invention relates to a sealing element and a waterproof connector.
    Japanese Unexamined Patent Publication No. 2015-035404 discloses a connector with a housing, terminal fittings inserted into the housing from the rear and a gasket mounted on a rear end portion of the housing. The seal has seal ports penetrating in a longitudinal direction. A cable attached to a rear end portion of the terminal fitting is inserted through each seal port in a liquid-tight manner.
    On the previous connector, a movement of the outer periphery of the seal is substantially prevented over the entire length. Thus, when a portion of the cable at the back of the seal is pulled in a radial direction, the seal can not follow the deformation of the cable and a degree of adhesion between the inner periphery of the seal orifice and the periphery. external cable can be reduced.
    The present invention has been realized on the basis of the previous situation and aims to improve the reliability of a sealing function.
    In summary, a first aspect of the invention relates to a seal for mounting on a rear end portion of a housing in which terminal fittings are to be inserted from the rear. The seal has seal ports configured to allow passage through cables connected to rear end portions of the terminal fittings in a liquid-tight manner. The seal has a body that forms rear end side regions of the seal ports and the body has a seal portion formed on an outer periphery. An area between inner peripheries of the seal ports and the seal portion is a solid elastic portion. The seal also has follower portions projecting forwardly of the seal portion from a front surface of the body. The follower portion forms zones prior to seal ports and may be resiliently deformed in a direction intersecting a direction of penetration of the seal ports into a condition mounted on the housing.
    A second aspect of the invention relates to a watertight connector with a housing in which the connectors of a plurality of terminal connectors are to be inserted from the rear. A seal is mounted on a rear portion of the housing. Seal ports are formed on the seal and are configured to allow passage through cables connected to rear end portions of the terminal fittings in a liquid-tight manner. The seal has a body that forms rear areas of the seal ports and a seal portion is formed on an outer periphery. An area between inner peripheries of the seal ports and the seal portion defines a solid elastic portion. A follower portion extends forwardly of the seal portion from a front surface of the body portion. The follower portion forms forward ends of the seal ports and is resiliently deformable in a direction intersecting a direction of penetration of the seal ports into a condition mounted on the housing.
    The follower portion elastically deforms and follows the inclination of the cable if a portion of the cable at the back of the seal is pulled in a radial direction. Thus, the inner periphery of the front region of the seal orifice defined by the follower portion remains in close contact with the outer periphery of the cable in a liquid-tight manner. Further, a portion between the seal portion and the inner peripheries of the back regions of the seal ports define the solid elastic portion in an area of the body portion in which the seal portion is formed. Thus, the seal portion has a desired sealing function.
    The follower portion may be a single seal port and a plurality of follower portions may extend individually from the body. According to this configuration, even if each cable is pulled individually, the seal opening may follow such cable movement.
    A peripheral wall may extend forwardly from an outer peripheral edge of the front surface of the body and may include an auxiliary seal formed on an outer periphery. According to this configuration, the sealing function of the outer periphery of the gasket is improved by arranging the auxiliary gasket in addition to the gasket portion.
    A groove may be formed between the follower portion and the peripheral wall and may be configured to avoid interference with the peripheral wall when the follower portion is elastically deformed. According to this configuration, tracking properties of the follower portion are improved.
    A connection can be provided to connect the inner periphery of the peripheral wall and the outer periphery of the follower portion. According to this configuration, incorrect deformation of the peripheral wall to an outer periphery may be limited.
    A brief description of the drawings will now be given below.
    Figure 1 is a sectional side view of a first embodiment.
    Fig. 2 is a sectional side view showing a state in which a cable is pulled up.
    Figure 3 is a front view of a seal.
    Figure 4 is a section along the line X-X of Figure 3.
    Figure 5 is a plan view of the seal.
    Figure 6 is a sectional side view of a second embodiment.
    Fig. 7 is a sectional side view showing a state in which a cable is pulled,
    Figure 8 is a side view in section of the seal.
    A detailed description will then be given below.
    A first embodiment of the invention is described with reference to FIGS. 1 to 5. It may be noted that, in the following description, a left side in FIGS. 1, 2, 4 and 5 is defined as a front face. with regard to a longitudinal direction. With respect to a vertical direction, the upper and lower sides of Figures 1 to 4 are defined as the upper and lower sides. A waterproof connector A of the first embodiment comprises a structure 10 made of a synthetic resin, a housing 20 made of a synthetic resin, a plurality of terminal fittings 24, a seal 30 made of rubber and a rear support 45 made of a synthetic resin.
    The structure 10 has a receiving section 11 opening towards the rear. An area of the inner circumferential surface of the structure 10 near the trailing end serves as a uniformly continuous sealing surface 12 over the entire circumference. The entire housing 20, the entire sealing member 30 and a leading end portion of the rear retainer 45 are received in the receiving section 11 from the rear. The sealing member 30 received in the receiving section 11 is arranged substantially at the same position as the sealing surface 12 in the longitudinal direction.
    The housing 20 is in the form of a flat block elongated in a lateral direction. Terminal receiving compartments 21 penetrate through the housing 20 in the longitudinal direction. The terminal receiving compartments 21 are arranged separately on the upper and lower stages. The terminal receiving compartments 21 on the upper stage and those on the lower stages are respectively arranged at regular intervals. The terminal connectors 24 are inserted into each terminal receiving compartment 21 from the rear. The inserted terminal connection 24 is retained by a locking action of a locking blade 22 formed in the terminal receiving compartment 21. In addition, a receiving cavity 23 is formed on a rear end portion of the housing 20 and communicates with the rear ends of all of the terminal receiving compartments 21.
    The seal 30 is elongated in the lateral direction and has a shape before elliptical. The seal 30 is a single component having a body portion 31, follower portions 40 corresponding to the terminal receiving compartments 21, and a peripheral wall 4L The seal 30 has seal orifices 32 penetrating through the seal 30 in the direction longitudinal to positions corresponding to the terminal receiving compartments 21. The seal openings 32 are spaces for allowing passage through cables 26 connected to the crimping portions 25 at rear end portions of the terminal connectors 24. respective in a liquid-tight manner. The seal opening 32 has in cross section a circular shape perpendicular to its axis.
    A first inner peripheral lip 33 is formed on a leading end portion of the inner periphery of the seal port 32 and extends in a circumferential direction continuously over the entire circumference. A second inner peripheral lip 34 is formed at a position of the inner periphery of the seal port 32 behind and adjacent the first inner peripheral lip 33 and extends circumferentially continuously over the entire circumference. . A third inner peripheral lip 35 is formed at a position of the inner periphery of the seal port 32 behind and adjacent the second inner peripheral lip 34 and extends circumferentially continuously over the entire circumference. .
    Minimum internal diameters of the first inner peripheral lip 33, the second inner peripheral lip 34 and the third inner peripheral lip 35 are equal. In addition, a conical guide surface 36 is formed on a rear end portion of the inner periphery of the seal port 32 and has an inner diameter increasing progressively rearwardly. A minimum inner diameter of the guide surface 36 is greater than that of the first to third inner peripheral lips 33, 34 and 35.
    The body 31 constitutes a substantially rear half of the seal 30 in the longitudinal direction. The body 31 has a front elliptical shape elongate in the lateral direction. An outer peripheral lip 37 (seal portion) is formed at a forward position on the outer periphery of the body 31 and extends in the circumferential direction continuously over the entire circumference. A rear auxiliary outer peripheral lip 38R is formed at a rear position on the outer periphery of the body 31 and in the circumferential direction continuously over the entire circumference. Only two lips, i.e., the outer peripheral lip 37 and the outer rear peripheral peripheral lip 38R, are formed on the outer periphery of the body 31. Projection dimensions of the outer peripheral lip 37 and the lip auxiliary external rear peripheral 38R from the outer peripheral surface of the body 31 are equal to the others.
    The body 31 constitutes rear zones 32R of the seal orifices 32. The third inner peripheral lip 35 and the guide surface 36 are formed on the rear zone 32R of the seal ori fi cation 32. The first and second inner peripheral lips 33, 34 are arranged in front of the body 31. The outer peripheral lip 37 and the third inner peripheral lip 35 are arranged substantially at the same position in the longitudinal direction. Specifically, a front portion of the outer peripheral lip 37 and a rear portion of the third inner peripheral lip 35 are arranged on the same area in the longitudinal direction. In addition, the auxiliary rear outer peripheral lip 38R and the guide surface 36 are arranged substantially at the same position in the longitudinal direction.
    The body 31 is a full elastic portion 39 in its entirety. Thus, there is no hollow portion such as grooves and cavities between the inner peripheral surfaces of the rear end side areas 32R of the seal orifices 32 and the outer peripheral surface of the body 31. In addition, there is no hollow portion such as grooves and cavities between the inner peripheral surfaces. There is no hollow portion such as grooves and cavities between the inner peripheral surfaces of the rear end lateral areas 32R of the vertically adjacent joint orifiers 32. Similarly, there is no such non-hollow part as grooves. and recesses between the inner peripheral surfaces of the rear zones 32R of the laterally adjacent seal openings 32.
    The follower portions 40 are separately arranged on the upper and lower stages to individually match respective terminal receiving members 21. Each follower portion 40 extends forward (toward the terminal connector 24) from the front surface of the body 31. The forward end (projecting end) of each follower portion 40 is located forwardly of the leading end of the outer peripheral lip 37. Each follower portion 40 constitutes a front zone 32F of the first seal opening 32 respectively. The first and second inner peripheral lips 33, 34 are formed on the front zone 32F of the seal orifice 32.
    Each follower portion 40 can be moved individually and resiliently relative to the body 31. Each follower portion 40 is movable to tilt in directions intersecting the axial (longitudinal) directions of the seal port 32 and the cable 26 in the seal port 32. The follower portions 40 adjacent to each other in the vertical or lateral direction are spaced so as not to come into contact or interfering with one another when deformed elastic. The first and second inner peripheral lips 33, 34 move unitarily with the follower portion 40 when the follower portion 40 is deformed.
    The peripheral wall 41 is arranged over the entire circumference along an outer peripheral edge portion of the front surface of the body 31 and extends forwardly from the body 31. The front end of the wall device 41 is located behind the front ends of the follower portions 40. The peripheral wall 41 is formed to collectively wrap all the follower portions 40. Ribs 47 are formed between the follower portions 40 and the peripheral wall 41 and are configured such that the follower portions 40 do not contact or interfere with the peripheral wall 41 when elastically deformed in the vertical or lateral direction.
    As shown in Fig. 3, the left and right ends of the peripheral wall 41 define wide portions 42 having a larger dimension between the outer and inner peripheries compared to that of the substantially straight upper and lower wall portions. Left and right positioning ports 43 are formed on the left and right wide portions 42 and penetrate from the front surface of the peripheral wall 41 to the rear surface of the body 31. The positioning holes 43 allow the rear support to be positioned 45 of the vertical and laterally relative to the housing 20. The positioning holes 43 are arranged on both the left and right end portions of the body 31, i.e. arranged at the opposite left and right sides. In addition, inner peripheral surfaces of the wide portions 42 and four follower portions 40 located on both ends in the lateral direction are coupled by connecting portions 44.
    An outer auxiliary peripheral lip 38F is formed on the outer periphery of the peripheral wall 41 and extends circumferentially and continuously over the entire circumference. Since the peripheral wall 41 is located on the front of the body 31, the front auxiliary outer peripheral lip 38F is located on the front of the outer peripheral lip 37. In addition, the outer peripheral surface of the peripheral wall 41 and that of the body 31 are continuous and flush with each other, and a projection dimension of the outer peripheral peripheral lip 38F with respect to the inner peripheral surface of the peripheral wall 41 and that of the outer peripheral lip 37 and the auxiliary outer peripheral peripheral lip 38R with respect to the outer peripheral surface of the body 31 are equal.
    The seal 30 is mounted in the housing 20, the front end surface of the peripheral wall portion 41 being kept in contact with the rear surface of the housing 20. In a mounted state, all the follower portions 40 are received in the cavity 23 of the housing 20. In addition, the inner peripheral surface of the peripheral wall 41 is substantially continuous and flush with that of the receiving cavity 23. Thus, the follower portions 40 and the inner peripheral surface of the receiving cavity 23 are spaced so that the follower portions 40 do not contact or interfere with the inner peripheral surface of the receiving cavity 23 when elastically deformed in the vertical direction or the lateral direction.
    The rear support 45 has a substantially elliptical shape elongated in the lateral direction similarly to the seal 30. The rear support 45 has through orifices 46 respectively corresponding to the seal orifices 32. In addition, positioning protrusions (not shown) are formed on the left and right end portions of the rear support 45. The rear support 45 is mounted with respect to the seal 30 so as to be kept in close contact with the rear surface of the body 31 so that the positioning protrusions pass through. through the locating holes 43. The protruding front ends of the locating projections are locked to the locking portions (not shown) of the housing 20. By this locking action, the rear support 45 is fixed to the housing 20 and the seal 30 is mounted on the rear end portion of the housing 20 while being interposed between the surface a rear of the housing 20 and the front surface of the rear support 45.
    After the housing 20, gasket 30 and rear support 45 have been assembled as previously described, the terminal fittings 24 are passed through the through hole 46 from the rear of the rear support 45 and inserted into the terminal receiving compartments 21 through the seal ports 32. In conjunction with this, a front end portion of each cable 26 connected to a rear end portion of the respective terminal connector 24 is inserted into the port 46 and the seal port 32. In the inserted state, the three inner peripheral lips 33, 34 and 35 on the inner periphery of the seal port 32 are held in close contact with the outer periphery of the cable 26. a liquid-tight manner while being elastically deformed. In this way, the water intrusion is prevented on a path leading to the terminal receiving compartment 21 through the seal port 32.
    After all the terminal fittings 24 have been inserted into the housing 20, the housing 20, the seal member 30 and the back support 45 are received in the receiving section 11 of the structure 10. In a properly received state, the outer peripheral lip 37, the front auxiliary outer peripheral lip 38F and the outer rear peripheral peripheral lip 38R are held in close contact with the sealing surface 12 of the structure 10 while being elastically deformed. In this way, the water intrusion is prevented on a path leading to a front portion of the housing 20 through a clearance between the inner peripheral surface of the structure 10 and the outer peripheral surface of the gasket 30.
    Next, the functions of the first embodiment will be described. The vertical and lateral dimensions of a front portion of the terminal fitting 24 are larger than those of the crimping portion 25 on the rear end portion of the terminal fitting 24. Thus, on the rear end portion of the compartment terminal receiving means 21, a clearance is present between the crimping portion 25 of the terminal connector 24 and the inner surface of the terminal receiving compartment 21.
    The cable 26 extending rearward from the crimping portion 25 is withdrawn rearwardly towards the outer face of the rear support 45 through the seal 30 and the rear support 45, and this extracted portion may be subjected to a tensile stress in a direction (vertical direction or lateral direction) intersecting the axis (longitudinal direction) of the seal orifice 32. For example, if the extracted portion of the cable 26 is pulled, as shown on Figure 2, the cable 26 in an area passing through the seal 30 is inclined forwardly. At this time, the position of the crimping portion 25 is slightly lowered.
    The follower portion 40 then follows the posture tilt of the cable 26 and is elastically deformed obliquely so that a front end faces downwardly. At this time, since the first and second inner peripheral lips 33, 34 formed on the inner periphery of the follower portion 40 slope unitarily with the follower portion 40, these inner peripheral lips 33, 34 are held in close contact with the outer periphery of the cable 26 over the entire circumference with a constant pressure force. Thus, the inner periphery of the seal port 32 and the outer periphery of the cable 26 are reliably held in a liquid-tight state.
    In addition, the outer peripheral lip 37 of the body 31 is resiliently held in close contact with the sealing surface 12 of the structure 10 and the third inner peripheral lips 35 of the body 31 are resiliently held in close contact with the outer peripheries of the cables 26. Since the solid elastic portion 39 is present between the outer peripheral lip 37 and the third inner peripheral lip 35 in a radial direction of the cable 26, the elastic portion 39 (body 31) is itself not deformed substantially even if the follower portion 40 is elastically deformed.
    Thus, the outer peripheral lip 37 and the sealing surface 12 are resiliently reliably held in a liquid-tight state and the third inner peripheral lips 35 and the cables 26 are also reliably held in a liquid-tight state.
    The connector A of this first embodiment comprises the housing 20 in which the terminal connectors 24 must be inserted through the rear and the seal 30 mounted on the rear end portion of the housing 20, and the seal 30 has the orifices. joint members 32 configured to allow passage through cables 26 connected to the rear end portions of the terminal connectors 24 in a liquid-tight manner. The seal 30 comprises the body 31 and the follower portions 40. The body 31 constitutes the rear end lateral areas 32R of the seal openings 32 and the outer peripheral lip 37 is formed on the outer periphery of the body 31. A zone between the internal peripheries of the seal openings 32 and the outer peripheral lip 37 constitutes the solid elastic portion 39. In addition, the follower portions 40 extend forwardly of the outer peripheral lip 37 from the front surface of the body 31 and constitute the front regions 32F of the seal orifices 32. In the state mounted on the housing 20, the follower portions 40 may be elastically deformed in directions intersecting a direction of penetration of the seal orifices 32.
    If the portion of the cable 26 extending rearward from the seal 30 is pulled in the radial direction (vertical or lateral), the follower portion 40 is elastically deformed according to the posture angle of the cable 26. Thus, the inner periphery of the front region 32F of the seal port 32 defining the follower portion 40 is held in close contact with the outer periphery of the cable 26 in a liquid-tight manner. Further, since the solid elastic portion 39 is between the outer peripheral lip 37 and the rear end lateral areas 32R of the seal openings 32 in an area of the body 31 in which the outer peripheral lip 37 is formed, the outer peripheral lip 37 has a desired sealing function.
    Further, a follower portion 40 constitutes a single seal port 32 and the plurality of follower portions 40 extend individually from the body portion 31. In this configuration, even though each cable 26 is drawn individually, each follower portion 40 is individually elastically deformed in response to this movement of the cable 26. Thus, the seal opening 32 can flexibly follow the movement and inclination of the cable posture 26.
    Further, since the peripheral wall 41 extends forwardly from the outer peripheral edge of the front surface of the body 31 and the front auxiliary outer peripheral lip 38F is formed on the outer periphery of the peripheral wall 41, the function sealing the outer periphery of the Joint 30 is improved by arranging the front auxiliary outer peripheral lip 38F in addition to the outer peripheral lip 37. In addition, the ribs 47 are formed between the follower portions 40 and the peripheral wall 41 so as to avoid interference with the peripheral wall 41 when the follower portions 40 are deformed. This allows the follower portions 40 to be elastically deformable at a sufficiently large angle without interfering with the peripheral wall 41 such that the tracking properties of the follower portions 40 are high. Further, since the inner periphery of the peripheral wall 41 and the outer peripheries of the follower portions 40 are bound by the connecting portions 44, it is not possible for the peripheral wall 41 to deform incorrectly to an outer peripheral side. .
    Next, a second specific embodiment of the present invention is described with reference to FIGS. 6 to 8. On a watertight connector B according to this second embodiment, a seal 50 is of a configuration different from that of the first embodiment. embodiment. Since the other components (housing 20, terminal connectors 24, cables 26 and rear support 45) are identical to those of the first preceding embodiment, the same components are designated by the same reference numerals and the structures, functions and effects of these are not described.
    The seal 50 is formed to be generally elongate in a lateral direction and has a front elliptical shape. The sealing member 40 is a single component having a body portion 31 and a plurality (as well as terminal receiving compartments 21) of follower portions 61. The seal 50 is formed with a plurality (as many as compartments of receiving terminal 21) seal ports 52 penetrating through the seal 50 in a longitudinal direction. The orifices of the plurality of seal orifices 52 are spaces for allowing passage through cables 26 connected to the crimping portions 25 at rear end portions of the respective terminal fittings 24 in a sealed manner. to the liquid, and are arranged at positions corresponding to the plurality of terminal receiving compartments 21. The seal opening 52 has a circular cross-sectional shape perpendicular to its axis.
    A first inner peripheral lip 53 in the form of a protruding rib extending in a circumferential and continuous direction over the entire circumference is formed on a leading end portion of the inner periphery of the seal orifice 52. A second inner peripheral lip 54 in the form of a protruding rib extending in the circumferential direction and continuous over the entire circumference is formed at a position of the inner periphery of the seal orifice 52 behind the first internal peripheral lip 53 and close thereto. A third inner peripheral lip 55 in the form of a protruding rib extending in the circumferential direction and continuous over the entire circumference is formed at a position of the inner periphery of the seal orifice 52 behind the second lip internal device 54 and close to it.
    The internal minimum diameters of the first inner peripheral lip 53, the second inner peripheral lip 54 and the third inner peripheral lip 55 are equal. Further, a tapered guide surface 56 having a progressively increasing inner diameter toward a trailing side is formed on a rear end portion of the inner periphery of the seal port 52. An inner minimum diameter of the guide surface 56 is greater than that of the first to third inner peripheral lips 53, 54 and 55.
    The body 51 constitutes substantially 3/4 of an area on a rear end side of the seal 50 in the longitudinal direction. The body 51 has a shape before elliptical in the lateral direction. A first outer peripheral lip 57 (seal portion) in the form of a protruding rib extending circumferentially and continuously over the entire circumference is formed at a forward position of the outer periphery of the circumference. body 51. A second outer peripheral lip 58 (seal portion) in the form of a protruding rib extending in the circumferential direction and continuous over the entire circumference is formed substantially on a central portion in the longitudinal direction. on the outer periphery of the body 51.
    An auxiliary external peripheral lip 59 in the form of a protruding circumferential circumferential and continuous circumferential rib is formed at a position of a rear end portion on the outer periphery of the body 51. Three lips 57, 58 and 59 are formed side by side in the longitudinal direction on the outer periphery of the body 51. Projection dimensions of the first outer peripheral lip 57, the second outer peripheral lip 58 and the outer peripheral peripheral lip 59 relative to the outer peripheral surface of the body 51 are all equal.
    The body 51 constitutes rear end lateral areas 52R (substantially 3/4 of the areas on the rear end sides) of the seal ports 52. The second inner peripheral lip 54, the third inner peripheral lip 55 and the guide 56 are formed on the rear zone 52R of the seal port 52. The first inner peripheral lip 53 is arranged on the front of the body 51. The first outer peripheral lip 57 and the second inner peripheral lip 54 are arranged substantially at the same position in the longitudinal direction. In addition, the second outer peripheral lip 58 and the third inner peripheral lip 55 are arranged substantially at the same position in the longitudinal direction. Specifically, a front end side portion of the second outer peripheral lip 58 and a rear end side portion of the third inner peripheral lip 55 are arranged in the same area in the longitudinal direction. In addition, the auxiliary outer peripheral lip 59 and the guide surface 56 are arranged substantially at the same position in the longitudinal direction.
    The body 51 is, in its entirety, a solid elastic portion 59. Thus, there is no hollow portion such as grooves and cavities between the inner peripheral surfaces of the rear end lateral areas 52R of the seal orifices 52 and the inner circumferential surface of the body 51. In addition, there is no hollow portion such as grooves and cavities between the inner peripheral surfaces of the trailing end lateral areas 52R of the vertically adjacent seal apertures 52. Similarly, there is no hollow portion such as grooves and cavities also between the inner peripheral surfaces of the rear end lateral areas 52R of the laterally adjacent seal orifices 52.
    The follower portions 61 are arranged separately on upper and lower stages to individually correspond to the plurality of terminal receiving compartments 21. Each follower portion 61 extends forward (toward the terminal connector 24) from the front surface of the body 51. The front end (projecting end) of the follower portion 61 is located on the front of the front end of the first outer peripheral lip 57. A follower portion 61 constitutes a front zone 52F on a seal port 52 (area of the seal port 52 at the front of the body 51 and substantially 1/4 area at a front end). The first inner peripheral lip portion 53 is formed on the area 52F of the seal port 52. That is, the body 51 has two lips (second inner peripheral lip 54 and third inner peripheral lip 55). while the follower portion 61 has only one lip (first inner peripheral lip 53).
    Each follower portion 61 can be moved individually and relatively resiliently relative to the body 51. A relative displacement of the follower portion 61 is such that an elastic deformation intended to be inclined in directions (vertical direction and lateral direction) intersecting axial directions (longitudinal direction) of the seal port 52 and the cable 26 in the seal port 52. The follower portions 61 adjacent to each other in the vertical or lateral direction are spaced so as not to come into contact with each other. (interfering) with each other when elastically deformed. When the follower portion 61 is elastically deformed, the first inner peripheral lip 53 is moved unitarily with the follower portion 61.
    The seal 50 configured as previously described is mounted in the housing 20, the front end surface of the body 51 being kept in contact with the rear surface of the housing 20. In a mounted state, all follower portions 61 are received in a receiving cavity 23 of the housing 20. The follower portions 61 and the inner peripheral surface of the receiving cavity 23 are spaced such that the follower portions 61 are not in contact (do not interfere) with the peripheral surface internal of the receiving cavity 23 when elastically deformed in the vertical direction or the lateral direction.
    The cable 26 extending rearwardly from the crimping portion 25 of the terminal fitting 24 is pulled backward outwardly of the rear support 45 through the seal 50 and the rear support 45. For example if a portion extracted from the cable 26 is drawn as shown in FIG. 7, the cable 26 in an area passing through the seal 50 is inclined forwardly. At this time, the position of the crimping portion 25 is lowered slightly.
    Then, the follower portion 61 follows the posture inclination of the cable 26 and is elastically deformed obliquely so that a front end faces downwardly. At this time, since the first inner peripheral lip 53 formed on the inner periphery of the follower portion 61 tilts unitarily with the follower portion 61, the first inner peripheral lip 53 is held in close contact with the outer periphery of the cable 26 over the entire circumference with a constant pressure force. Thus, the inner periphery of the seal port 52 and the outer periphery of the cable 26 are reliably held in a liquid-tight state.
    In addition, the first and second outer peripheral lips 57, 58 of the body 51 are held in close contact with a sealing surface of a structure, and the second and third inner peripheral lips 54, 55 of the body 51 are held in a controlled manner. resiliently in close contact with the outer peripheries of the cables 26. A solid elastic portion 60 is present between the first outer peripheral lip 57 and the second inner peripheral lip 54 in a radial direction of the cable 26, as well as between the second outer peripheral lip. 58 and the third inner peripheral lip 55 in the radial direction of the cable 26. Thus, even if the follower portion 61 is elastically deformed, the resilient portion 60 (body 51) itself is not substantially deformed. Thus the first and second outer peripheral lips 57 and 58 and the sealing surface are reliably held in a liquid-tight state and the second and third inner peripheral lips 54 and 55 and the cable 26 are reliably held in a liquid-tight state. The invention is not limited to the embodiments described above. For example, the following embodiments are also within the scope of the invention.
    Although the follower portion constitutes only a seal port and the plurality of follower portions extend individually from the body in the first and second embodiments, a follower portion may constitute the plurality of seal ports. In this case, only one follower portion may extend from the body and form all of the seal or a follower portion may constitute a plurality of seal orifices when a plurality of follower portions extend from from the body.
    Although the entire area of the body from the front end to the rear end serves as a solid elastic portion in the first and second embodiments, an area of the body on the front or rear of the portion As a seal (outer peripheral lip) may not be full by incorporating hollow portions such as grooves.
    Although only one seal portion is provided in the first embodiment, a plurality of longitudinally spaced seal portions may be provided.
    Although two gasket portions are provided in the second embodiment, one, three, or more gasket portions may be provided.
    Although the body has an inner peripheral lip in the first embodiment, the body portion may include a plurality of inner peripheral lip portions.
    Although the body has two inner peripheral lip portions in the second embodiment, the body may have one, three, or more internal peripheral lips.
    Although the body has as many inner peripheral lips as seal portions in the first and second embodiments, the number of inner peripheral lips formed on the body may be different from that of the seal portions.
    Although the follower portion has two inner peripheral lip portions in the first embodiment, the follower portion may have one, three, or more internal peripheral lips.
    Although the follower portion has an inner peripheral lip in the second embodiment, the follower portion may include a plurality of inner peripheral lips.
    Although the number of inner peripheral lips formed on the follower portion is greater than that of the inner peripheral lips of the body of the first preceding embodiment, the number of inner peripheral lips formed on the follower portion may be less than or equal to that of the lips. internal peripherals of the body.
    Although the number of inner peripheral lips formed on the follower portion is less than that of the inner peripheral lips of the body in the second previous embodiment, the number of inner peripheral lips formed on the follower portion may be greater than or equal to that of inner peripheral lips of the body.
    Although the inner periphery of the peripheral wall and the outer peripheries of the follower portions are bonded by the connecting portions in the first embodiment, the seal may not have connecting portions configured to bond the inner periphery of the peripheral wall and the outer peripheries of the follower parts.
    Although the follower portions extend further forward than the front end of the peripheral wall in the first embodiment, the leading ends of the follower portions may be in the same position as the front end of the peripheral wall. or behind it in the longitudinal direction.
    Although the outer periphery of the gasket is kept in close contact with the inner periphery of the structure in order to receive the housing in the first and second embodiments, the invention can also be applied when the outer periphery of the gasket is kept in contact. narrow with a peripheral wall formed unitarily with respect to the housing.
    List of numerical references A, B ... Watertight connector 20 ... Housing 24 ... Terminal connection 26 ... Cable 30.50 ... Gasket 31.51 ... Body 32.52 ... Gasket hole 32F, 52F ... Front Seal Port Area 32R, 52R Rear Seal Port Area 37 ... External Peripheral Lip (Seal Part) 38F ... Front Auxiliary External Peripheral Lip (Auxiliary Seal Part) ) 39, 60 ... Elastic part 40,61 ... Follower part 41 ... Perimeter wall 44 ... Connecting part 47 ... Groove 57 ... First external peripheral lip (part serving as joint) 58 ... Second outer peripheral lip (part serving as a seal)
    权利要求:
    Claims (6)
    [1" id="c-fr-0001]
    1. A seal (30, 50) for mounting on a rear end portion of a housing (20) in which terminal connections (24) are to be inserted from the rear, the seal (30, 50) having seal orifices (32, 52) configured to allow passage through cables (26) connected to rear end portions of the terminal fittings (24) in a liquid-tight manner, comprising: a body 31,31) constituting rear regions of the seal orifices (32,52) and having a seal portion (37,57) formed on an outer periphery, the area between inner peripheries of the seal orifices (32,52). ) and the seal portion (37, 57) defining a solid elastic portion (39, 60); and follower portions (40, 61) extending forwardly of the seal portion (37, 57) from a front surface of the body (31, 51), forming areas prior to the seal ports (32, 52) and resiliently deformable in a direction intersecting a direction of penetration of the seal ports (32, 52).
    [2" id="c-fr-0002]
    A seal according to claim 1, wherein each of the follower portions (40, 61) has only one seal port (32, 52) and the follower portions (40, 61) extend individually from the body (31, 51).
    [3" id="c-fr-0003]
    The seal of claim 2, further comprising a peripheral wall (41) extending forwardly from an outer periphery of the front surface of the body (31, 51) and having a joint portion auxiliary (38F) formed on an outer periphery.
    [4" id="c-fr-0004]
    The seal of claim 3, wherein a groove (47) is formed between the follower portion (40, 61) and the peripheral wall (41), the groove (47) being configured to avoid interference with the wall peripheral (41) when the follower portion (40, 61) is elastically deformed.
    [5" id="c-fr-0005]
    The seal of claim 4, further comprising a connecting portion (44) configured to connect an inner periphery of the peripheral wall (41) and the outer periphery of the follower portion (40, 61).
    [6" id="c-fr-0006]
    6. Waterproof connector, comprising; a housing (20) in which connectors of a plurality of terminal connectors (24) are to be inserted from the rear; a seal (30, 50) mounted on a rear end portion of the housing (20); and seal ports (32, 52) formed on the seal (30, 50) and configured to allow the cables (26) connected to the rear end portions of the terminal fittings (24) to pass through a liquid-tight manner, wherein the seal (30, 50) comprises: a body (31, 51) constituting rear regions of the seal openings (32, 52) and having a seal portion (37, 57) formed on an outer periphery, a zone between inner peripheries of the seal orifices (32, 52) and the seal portion (37, 57) defining a solid elastic portion (39, 60); and a follower portion (40, 61) extending forwardly of the seal portion (37, 57) from a front surface of the body (31, 51), forming areas prior to the seal ports (32, 52) and resiliently deformable in a direction intersecting a direction of penetration of the seal ports (32, 52) into a state mounted in the housing (20).
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3053167A1|2017-12-29|
    EP1979990B1|2011-12-14|Connector equipped with a plug
    EP2445060A1|2012-04-25|System for interconnection between electronic boards
    FR3022409B1|2019-08-02|ELECTRICAL TERMINAL.
    EP2879921B1|2016-09-21|Device for connecting a wiper arm and a wiper blade together including an overmoulded tube
    LU82815A1|1982-05-10|SLEEVE FOR PROTECTING THE SPLICE OF ELECTRICAL OR TELEPHONE CABLE
    EP3284125B1|2020-06-03|Device for mounting and protecting a battery, and corresponding vehicle
    EP0695900B1|1998-07-01|Sealed passage for telecommunication cables
    BE1022467B1|2016-04-11|CYLINDRICAL LABYRINTH
    EP2890906B1|2016-10-05|Ring for attaching a bolt to a support and assembly obtained
    FR2463633A1|1981-02-27|PIN-SHAPED ASSEMBLY MEMBER
    FR2730785A1|1996-08-23|Protective rubber sleeve for electrical cable or conduit
    FR3055476B1|2019-11-08|DIVIDED CONNECTOR
    FR2604224A1|1988-03-25|CONNECTION DEVICE.
    FR2652872A1|1991-04-12|Connector for a pipe
    EP0744088B1|1999-01-27|Electric plug of the british type
    FR3054009A1|2018-01-19|ACCESSORY FOR A CONNECTING ASSEMBLY WITH ANTI-PERFORATION SYSTEM
    FR2976645A1|2012-12-21|SEAL SLEEVE FOR A CABLE PASS
    EP1800949A1|2007-06-27|Light unit for a vehicle provided with a rod having a positioning portion and a portion for fixing it to the car body
    EP3506443A1|2019-07-03|Variable depth electrical box
    FR2585090A1|1987-01-23|Clip-in bracket for assembly
    FR3025484A1|2016-03-11|SEAL CAP
    EP3336967B1|2019-09-11|Electrical connection element
    FR2748128A1|1997-10-31|Fixing for rigid connection between spectacle lens and frame
    EP3436701A1|2019-02-06|Modular pump housing
    同族专利:
    公开号 | 公开日
    JP2017228408A|2017-12-28|
    US10033131B2|2018-07-24|
    JP6628095B2|2020-01-08|
    US20170373429A1|2017-12-28|
    CN107528166B|2019-10-25|
    CN107528166A|2017-12-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1996037927A1|1995-05-25|1996-11-28|The Whitaker Corporation|Sealed electrical connector|
    JPH10223304A|1997-01-31|1998-08-21|Whitaker Corp:The|Water-proof electric connector assembly|
    JP3540164B2|1998-07-06|2004-07-07|矢崎総業株式会社|Waterproof connector|
    JP3691291B2|1999-06-28|2005-09-07|矢崎総業株式会社|Waterproof connector|
    FR2844644B1|2002-09-12|2006-04-28|Framatome Connectors Int|SEALING SYSTEM FOR MULTI-SPINDLE ELECTRICAL CONNECTOR|
    US6913486B2|2002-11-07|2005-07-05|Sumitomo Wiring Systems, Ltd.|Waterproof electrical connector|
    JP4214898B2|2003-11-27|2009-01-28|住友電装株式会社|Waterproof connector|
    EP1872445B8|2005-04-11|2019-01-16|Aptiv Technologies Limited|Improved grommet-type joint for electrical connector, and electrical connector comprising such a joint|
    CN102326301B|2009-02-20|2014-09-17|矢崎总业株式会社|Waterproof connector|
    CN102754286B|2010-02-04|2015-01-07|矢崎总业株式会社|Connector housing with mat seal|
    JP5637023B2|2011-03-18|2014-12-10|住友電装株式会社|Dummy stopper|
    US9147950B2|2011-05-25|2015-09-29|Precision Concepts Group Llc|Connector assembly and device and methods of assembling same|
    JP2015035404A|2013-08-09|2015-02-19|住友電装株式会社|Connector|
    JP2016051634A|2014-09-01|2016-04-11|住友電装株式会社|connector|JP2018200765A|2017-05-25|2018-12-20|矢崎総業株式会社|connector|
    US10777934B2|2018-07-16|2020-09-15|Te Connectivity Corporation|Electrical connector which accepts different seal configurations|
    JP2021082476A|2019-11-19|2021-05-27|住友電装株式会社|connector|
    法律状态:
    2018-05-11| PLFP| Fee payment|Year of fee payment: 2 |
    2019-03-08| PLSC| Search report ready|Effective date: 20190308 |
    2020-05-12| PLFP| Fee payment|Year of fee payment: 4 |
    2021-05-13| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2016123271A|JP6628095B2|2016-06-22|2016-06-22|Seal member and waterproof connector|
    [返回顶部]