• 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 waterproof connector (100) includes a first housing (10) formed with a recess (11), and a sealing unit (50) to be sandwiched between the first housing (10) and a second housing (70). ) mounted in the recess (11), thereby to maintain a watertightness between the first and second housings, the sealing unit (50) comprising a locking ring (51) for engaging the unit sealing (50) on the recess (11) in a predetermined position, a retaining element (52) for preventing a terminal (30) which has been inserted into the first housing (10) from being withdrawn from the first housing ( 10), and a water seal (53) sandwiched between an outer surface of the locking ring (51) and an inner surface of the recess (11).
    公开号:FR3024597A1
    申请号:FR1557355
    申请日:2015-07-31
    公开日:2016-02-05
    发明作者:Takayoshi Endo；Seiji Sasaki
    申请人:Dai Ichi Seiko Co Ltd；
    IPC主号:
    专利说明:

    [0001] The invention relates to a waterproof connector configured to prevent water from entering an area in which terminals are housed.
    [0002] The waterproof connector 200 shown in Figures 13 to 19 is not described in any publication, and is not used in public. Therefore, the waterproof connector 200 is not the prior art for the present invention. However, it is useful for a better understanding of the present invention to describe the watertight connector 200. The waterproof connector 200 is thus explained below with reference to Figs. 13 to 19 only for the purpose. a better understanding of the present invention. The description of the waterproof connector 200 does not mean that the applicant recognizes the waterproof connector 200 as prior art. As shown in Fig. 13, the waterproof connector 200 comprises a female housing 201 made of an electrically insulating material and formed with a recess 209 which is open towards the front of the housing 201, a retainer before 202 mounted in the recess 209, a front seal 203 mounted in the recess 209, and a plurality of terminals 205 inserted into terminal storage spaces 204 which are open at the rear of the housing 201. When a male housing 207 comprising a sealed circuit board 206 is inserted into the recess 209 of the housing 201, an extension 206a of the sealed circuit board 206 is inserted into a gap 208 formed in the housing 201 and which is open on the recess 209, and thus, an electrically conductive portion formed on a surface of the extension 206a makes partial contact with one of the terminals 205 which is exposed on the space 208. Sealed circuit board 206 and terminal 205 are thus electrically connected to each other. As illustrated in FIGS. 14 to 19, the waterproof connector 200 is adapted to include an engagement piece 210 extending from a corner of the front retainer 202, and a recess 211 which is open on the front of the recess 209 to position the front retainer 202 in a predetermined position in the recess 209 of the housing 201. When the front retainer 202 is mounted in the recess 209, the workpiece engagement 210 of the front retainer 202 is inserted into the recess 211, and the front retainer 202 is thereby positioned in a predetermined position in the recess 209 in two steps mentioned later. More specifically, when the front retainer 202 is inserted into the recess 209 of the housing 201 in a process of assembling the watertight connector 200, the front retainer 202 is first subjected to a condition pre-assembled as shown in FIG. 17, and secondly to a complete assembly condition as illustrated in FIG. 19. In order to perform the two steps mentioned above, as illustrated in FIG. a first projection 213 and a second projection 214 are formed in the recess 211. The engagement piece 210 is formed at a front end thereof with a protrusion 212 which can be engaged with the first and second projections 213 and 214. The first and second projections 213 and 214 are spaced from each other in a Z direction (see Fig. 15 in which the first and second projections 213 and 124 project beyond below) in which the engagement piece 210 is inserted into the recess 211. The first projection 213 is located downstream with respect to the second projection 214 in the Z direction. As illustrated in FIGS. 18, the first and second projections 213 and 214 are not aligned in the Z direction, but are aligned in a direction perpendicular to the Z direction. In the pre-assembled condition illustrated in FIG. 17, the projection 212 of the workpiece engagement 210 is engaged with the first projection 213. In the complete assembly condition illustrated in FIG. 19, the projection 212 is engaged with the second projection 214. The waterproof connector 200 is accompanied by a structural limitation such as that the female connector 201 can not be designed to include a through hole through which the inside and the outside realize a fluid communication with each other, because zone in which an electrically conductive portion (not shown) of the extension 206a makes contact with the terminal 205 must be kept watertight. Therefore, the recess 211 formed in the socket housing 201 must have a bottom, as shown in FIG. 15. That is, a through hole can not be formed in place of the recess 211, and the recess 211 must be blind in a Z direction in which the front retainer 202 is inserted into the recess 211. Therefore, in a die (not shown) used to mold the female housing 201 with resin, portions for molding the first and second projections 213 and 214 are undercut portions. As a solution to this problem, attempts have been made to form the first and second protrusions 213 and 214 by forced extraction of a matrix. However, the first and second projections 213 and 214 have been leveled due to the friction generated between a die and themselves when the female housing 201 has been separated from a die, with the result that the projection 212 formed at the the engagement piece 210 of the front retainer 202 can not have sufficient margin with which the protrusion 212 is engaged with the first and second projections 213 and 214, and it was therefore difficult to retained before 202 in the pre-assembled condition mentioned above. On the other hand, the waterproof connector 200 is accompanied by a problem in that the watertight connector 200 is assembled with poor performance, because a plurality of parts such as the retainer before 202 and the front seal 203 must be attached to the female housing 201. Japanese Patent No. 4986807 has suggested a connector comprising a hood and a sealing unit. However, since the hood and the sealing unit are separate parts from each other, the connector is accompanied by a problem of poor performance with which the connector is assembled. Japanese Patent Application Publication No. 2004-185918 has suggested a waterproof connector in which a terminal which has been inserted into a housing is engaged only with a hook in the housing. The secondary engagement between the terminal and the housing is not prepared. The terminal can thus not be fully maintained in a predetermined position, resulting in poor reliability of the connection between the terminal and the housing. Furthermore, the waterproof connector does not have a detection function because a terminal is fully inserted into a housing, resulting in poor reliability of insertion of a terminal into a housing. Because of the above mentioned problems in conventional connectors, it is an object of the present invention to provide a watertight connector capable of fully securing a front retainer relative to a housing, which is easily. manufactured by a resin molding process, which reduces a number of parts to thereby improve a yield with which the waterproof connector is assembled, and which provides superior watertightness performance. In one aspect of the present invention, there is provided a watertight connector comprising a first housing formed with a recess, and a sealing unit to be sandwiched between the first housing and a second housing mounted in the recess, in order to thus maintaining the watertightness between the first and second housings, the sealing unit comprising a locking ring for causing the sealing unit to engage the recess in a predetermined position, a retaining element for preventing a terminal which has been inserted in the first housing from being withdrawn from the first housing, and a water seal sandwiched between an outer surface of the locking ring and an interior surface of the recess, while the locking ring, the retainer, and the water seal are integrated with each other. In the waterproof connector according to the present invention, since the sealing unit can be engaged in the recess of the first housing in the predetermined position by means of the locking ring, the sealing unit has no need to understand essential components for the waterproof connector, such as the engagement piece and the recess. The waterproof connector can thus be easily manufactured by a resin molding process. As mentioned above, the waterproof connector is accompanied by a structural limitation in that the female connector can not be designed to include a through hole through which the inside and outside realize a fluid communication with each other, because an area in which an electrically conductive portion (not shown) of the extension comes into contact with the terminal must necessarily be kept sealed. The waterproof connector according to the present invention may be designed to include a through hole as mentioned above without the limitation mentioned above. The sealing unit according to the present invention can be engaged in the recess of the first housing in the predetermined position by means of the locking ring, and the sealing unit therefore does not have to include essential components for the waterproof connector. with the water, such as the engagement piece having the projection, and the recess in which the first and second projections are formed. Thus, the sealing unit can be easily manufactured by a resin molding process. Moreover, by designing the locking ring, the retaining element, and the water seal to be integrated with each other, the number of pieces to manufacture the unit of Sealing can be reduced, which ensures an improvement in a yield with which the sealing unit is assembled. In addition, the water seal sandwiched between the outer surface of the locking ring and the inner surface of the recess provides sufficient sealing performance with water. It is preferred that the waterproof connector further comprises at least one protrusion protruding from the locking collar, and a plurality of recesses which are open on an interior surface of the recess, the protrusion being mountable in the recesses. It is preferable that the locking ring includes a first side edge, and a second side edge spaced from the first side edge and facing the first side edge, the sealing unit further comprising a first projection and a second projection, the first projection being formed on the first side edge, and extending outwardly from an outer surface of the locking ring in a direction perpendicular to a longitudinal direction of the sealing unit, the second projection being formed on the second side edge, and extending outwardly from an outer surface of the locking ring in a direction perpendicular to a longitudinal direction of the sealing unit, the first housing being formed with at least two first recesses or first through holes in which the first protrusion is mounted, and at least two second recesses or second open holes haunts in which the second projection is mounted, the first recesses or first through-holes being spaced from each other in a direction in which the second housing is inserted into the recess, the second recesses or second through-holes being spaced apart; one in the other in a direction in which the second housing is inserted into the recess, a pitch between the first recesses or the first through holes being equal to one pitch between the second recesses or the second through holes. It is preferable that the first protrusion and the second protrusion are located in a diagonal of the locking ring. It is preferable that the locking ring further comprises a third protrusion on the first side edge and spaced apart. of the first projection, the third projection extending outwardly from an outer surface of the locking ring in a direction perpendicular to a longitudinal direction of the sealing unit, and a fourth projection standing on the second edge lateral and spaced apart from the second projection, the fourth projection extending outwardly from an outer surface of the locking ring in a direction perpendicular to a longitudinal direction of the sealing unit. It is preferable that the first and third projections are located on the first side edge symmetrically around the center of the locking ring and that the second and fourth projections are located on the second side edge symmetrically about the center of the ring. blocking, one of a distance between the first and third projections and a distance between the second and fourth projections being larger than the other. It is preferred that the first and second projections be closer to the front of the lock ring than the water seal.
    [0003] It is preferable that the retaining member comprises at least one extension that can be inserted into a hole extending from the recess so that a posture of a hook engaged with the terminal that has been inserted into the first housing is kept uniform.
    [0004] It is preferred that each of the lock ring and the retainer is a separate portion, and that the lock ring and the retainer can be connected to each other.
    [0005] It is preferable that the locking ring comprises at least one extension extending horizontally from a leading edge thereof, the extension being formed with a vertical through-hole, the retaining element comprising a projection to be mounted in the vertical opening hole when the locking ring and the retaining element are connected to each other. The advantages obtained by the present invention mentioned above will be described below. The sealing unit may be engaged in the recess of the first housing in a predetermined position by means of the locking ring without including essential components for the waterproof connector, such as the engagement piece and the housing. recess. Thus, the waterproof connector can be easily manufactured by a resin molding process. On the other hand, the number of parts for the manufacture of the sealing unit or the water-tight connector can be reduced, which improves the efficiency with which the sealing unit or the connector waterproof is assembled. In addition, the water seal sandwiched between the outer surface of the locking ring and the inner surface of the recess provides sufficient water sealing performance. Figure 1 is an exploded perspective view of a watertight connector according to a first embodiment of the present invention.
    [0006] Fig. 2 is a perspective view of a sealing unit as a part of the waterproof connector shown in Fig. 1. Fig. 3 is a front view of the sealing unit shown in Figs. Figure 2. Figure 4 is a plan view of the sealing unit and a female housing as seen in a direction indicated with an arrow A shown in Figure 1.
    [0007] FIG. 5 is a sectional view of the sealing unit and the female housing, in which the sealing unit is inserted into the female housing in a pre-assembled condition in a method of assembling the waterproof connector to water according to the first embodiment of the present invention. FIG. 6 is a sectional view of the sealing unit, of the female housing, and of a terminal, in which the terminal is inserted into the female housing in a first engagement condition in a method of assembling the connector. waterproof according to the first embodiment of the present invention. FIG. 7 is a sectional view of the sealing unit, the female housing, and the terminal, in which the sealing unit is mounted in the female housing in a complete assembly condition in a process assembly of the waterproof connector according to the first embodiment of the present invention. FIG. 8 is a sectional view of the sealing unit, the female housing, the terminal, and a male housing, in which the male housing is mounted in the watertight connector according to the first form. embodiment of the present invention. Fig. 9 is a sectional view of the terminal and the watertight connector according to the first embodiment of the present invention, wherein the terminal is inserted into the waterproof connector in a defective condition in a method of assembling the waterproof connector.
    [0008] Fig. 10 is a perspective view of the sealing unit as part of the waterproof connector according to a second embodiment of the present invention. Fig. 11 is a perspective view of the sealing unit as viewed in a direction indicated with an arrow B shown in Fig. 10. Fig. 12 is an exploded perspective view of the illustrated sealing unit. Figs. 13 and 13 are a sectional view of a watertight connector described as an example for a better understanding of the present invention. Fig. 14 is a front view of a female housing as part of the watertight connector 20 shown in Fig. 13. Fig. 15 is a perspective sectional view of a portion indicated with an arrow C Figure 16 is a front view of a front seal and a seal retainer both mounted in a pre-assembled condition in the female housing shown in Figure 14. Fig. 17 is a sectional view taken along the line DD shown in Fig. 16. Fig. 18 is a front view of a front seal and a seal retainer which are both mounted in a Complete assembly condition in the female housing shown in Figure 14.
    [0009] Fig. 19 is a sectional view taken along the line EE shown in Fig. 18. (First Embodiment) A waterproof connector 100 according to a first embodiment of the present invention is explained below with reference to Figures 1 to 12. As shown in Figures 1-5, the watertight connector 100 includes a female housing 10, and a sealing unit 50. As best illustrated in Figure 5, the female housing 10 is formed with a recess 11 which is open on the front of the female housing 10, and having a bottom, and further with a plurality of terminal storage spaces 12 extending from the rear to the front of the female housing 10, in which the terminals 30 are inserted. As mentioned later, the sealing unit 50 is clamped between the recess 11 and a later-mentioned male housing 70 inserted into the recess 11. Above, the term "front" means an upstream of a direction indicated with an arrow F which is parallel to a direction in which the terminals 30 are inserted into the terminal storage spaces 12, and the expression "backward" means an upstream of a direction indicated with an arrow R, that is, a direction in which the sealing unit 50 is inserted into the female housing 10. The sealing unit 50 comprises a locking ring 51 for bringing the sealing unit 50 to engage the recess 11 in a predetermined position, a front retainer 52 to prevent the terminals 30 which have been inserted into the terminal storage spaces 12 from being removed from the terminal storage spaces 12, and a seal from ' watertight seal 53 sandwiched between an outer surface of the locking ring 51 and an inner surface of the recess 11.
    [0010] The locking ring 51, the front retainer 52, and the water seal 53 are integrated with each other to thereby define the sealing unit 50. The locking ring 51 comprises at an inner surface a second water seal 54 to be sandwiched between an inner surface of the locking ring 51 and an outer surface of the male housing 70 inserted into the recess 11. As this is mentioned in detail later, the waterproof connector 100 comprises an engagement system by which the locking ring 51 can engage the sealing unit 50 on the female housing 10 in a plurality of spaced apart positions. on the other in the R direction, i.e. a direction in which the sealing unit 50 is inserted into the recess 11. As shown in FIGS. 2 and 3, the locking ring 51 has a rectangular cross section 50a with coi ns rounded. The locking ring 51 has a first side edge 51A, and a second side edge 51B spaced from the first side edge 51A and oriented parallel to the first side edge 51A. The aforementioned engagement system allowing the sealing unit 50 to be engaged in the recess 11 in a plurality of determined positions comprises a first projection 55 standing on the first side edge 51A of the locking ring. 51 and extending outward, a second projection 56 on the second side edge 51B of the locking ring 51 and extending outwards, two first recesses 15a and 15b (see Figures 1 and 4 ) formed on an inner surface of an upper wall of the female housing 10, wherein the first projection 55 can be mounted, and two second recesses 16a and 16b (see Figure 1) formed on an inner surface of a lower wall of the female housing 10, wherein the second projection 56 can be mounted. The first recesses 15a and 15b are spaced from each other in the direction R, i.e., a direction in which the sealing unit 50 is inserted into the recess 11. In a similar manner at the first recesses 15a and 15b, the second recesses 16a and 16b are spaced from each other in the direction R. A pitch between the first recesses 15a and 15b is equal to one pitch between the second recesses 16 and 16b. As illustrated in Figures 2 and 3, the first projection 55 and the second projection 56 are located in a diagonal of the locking ring 51. As shown in Figures 2 and 3, the locking ring 51 includes in addition to a third protrusion 57 standing on the first side edge 51A and spaced apart from the first projection 55, and a fourth projection 58 on the second side edge 51B spaced from the second projection 56. The first and third projections 55 and 57 which both rest on the first lateral edge 51A are symmetrically located around the center line 50c in a width direction W of the locking ring 51, and the second and fourth projections 56 and 58 which both stand on the second lateral edge 51B are symmetrically located around the center line 50c in the width direction W of the locking ring 51. A distance between the two first and third projections 55 and 57 is greater than a distance between the second and fourth projections 56 and 58. As shown in FIG. 1, the female housing 10 comprises, on an inner surface of an upper wall in the recess 11, a third recess 17 in which the third protrusion 57 is mounted, and further, on an inner surface of a lower wall in the recess, a fourth recess 18 in which the fourth projection 58 is mounted. As illustrated in FIG. 4, the third recess 17 has a length 17L equal to a gap 15L between outer edges of the first recesses 15a and 15b in the direction R. Although not illustrated, the fourth recess 18 has a length equal to a space between outer edges of the second recesses 16a and 16b in the direction R. The first to fourth protrusions 55 to 58 are located closer to the front of the locking ring 51 than the gasket. Thus, even if the first recesses 15a and 15b, the second recesses 16a and 16b, the third recess 17, and the fourth recess 18 in which the first and fourth protrusions 55 to 58 are mounted, respectively, were replaced by through holes, it is possible to maintain a watertightness between the sealing unit 50 and the female housing 10. In addition, since the p The first recesses 15a and 15b, the second recesses 16a and 16b, the third recess 17, and the fourth recess 18 are disposed outside an area in which the airtight connector is located. water 100 is electrically connected to a second electrical connector, and therefore must be kept watertight, it is possible to form a through hole, for example, through which the inside and outside of the Watertight connector 100 are in a fluid communication condition. As illustrated in FIGS. 5 and 6, a hook 19 is formed in each of the terminal storage spaces 12 of the female housing 10. The hook 19 is engaged on a hook engaging portion 31 of the terminal 30 which has has been inserted into the terminal storage space 12. The hook 19 is adapted to be able to move forwardly and elastically withdraw from the terminal storage space 12. The female housing 10 is formed with a plurality of holes 20 each extending from the recess 11 to the rear of the female housing 10, and each located adjacent to each of the terminal storage spaces 12. In order to maintain the hook 19 in a constant posture, the front retainer 52 is formed at the rear with a plurality of extensions 59 insertable into each of the holes 20. A method of assembling the waterproof connector 100 is explained below, with reference to Figures 5 to 9.
    [0011] First, as shown in Fig. 5, when the sealing unit 50 is inserted into the recess 11 of the housing 10, the extensions 59 of the front retainer 52 are inserted into the holes 20 and the first projection 55 of the locking ring 51 is mounted in the first recess 15a. Thus, the sealing unit 50 is engaged with the female housing 10 in a pre-assembled condition. Although not shown, second protrusion 56, third protrusion 57 and fourth protrusion 58 are mounted in second recess 16a, third recess 17 and fourth recess 18, respectively, when first protrusion 55 is mounted in the first recess 15a. Thus, the sealing unit 50 is engaged in the recess 11 in a first predetermined position closer to the front of the female housing 10 than a second predetermined position mentioned later. Then, as shown in Fig. 6, the terminals 30 are inserted into the terminal storage spaces 12. The hook 19 is first lifted by the hook engaging portion 31 which protrudes from a portion of sheath 32 of terminal 30, and then returned to its original position. The hook engaging portion 31 is thus in front of the hook 19, that is to say that the hook engagement portion 31 and the hook 19 are engaged with each other in a first condition. 'commitment. Then, as shown in Fig. 7, the sealing unit 50 is inserted further into the recess 11. Each of the extensions 59 of the front retainer 52 is inserted into each of the holes 20 of the housing 10, and the first projection 55 of the locking ring 51 is mounted in the first recess 15b of the female housing 10. The sealing unit 50 is thus engaged with the housing 10 in a complete assembly condition. In this situation, although not illustrated, the second projection 56 of the locking ring 51 is mounted in the second recess 16b of the female housing 10. The third and fourth projections 57 and 58 slide in and along the third and fourth recesses 17 and 18, respectively, in the direction R. Thus, the sealing unit 50 is engaged in the recess 11 in the second predetermined position closer to a rear of the housing 10 than the first predetermined position mentioned above. -above. In the complete assembly condition shown in Fig. 7, each of the extensions 59 is disposed at an upper end in face-to-face relationship with the move each move storage hook 19, preventing the hook 19 from moving away. from the terminal 30, that is to say from upwards. Thus, it is possible to prevent terminals 30 from being removed from the terminal space 12. Next, as shown in FIG. 8, the male housing 70 comprising a sealed circuit board 71 is inserted into the recess 11. Thus, an extension portion 71a of the sealed circuit board 71 is inserted into a space 21 which is open on the recess 11, and an electrically conductive portion (not shown) formed on a surface of the portion of the extension 71a therefore comes into contact with a portion of terminal 30 exposed in space 21. Sealed circuit board 71 and terminals 30 are thus electrically connected to each other. As shown in FIG. 9, if any one of the terminals 30 is inserted only halfway into the terminal storage space 12, i.e., if any of the terminals 30 arrive not in a design position in the terminal storage space 12, the hook 19 continues to be on a sheath portion 32 of the terminal 30, and the hook 19 therefore continues to partially overtake in the hole 20. If sealing unit 50 is inserted into the recess 11 in such a condition, the sealing unit 50 can not be moved forward as the extension 59 abuts at an upper end with the projecting portion of the hook 19. It is therefore possible to detect that the terminal 30 is not properly inserted into the terminal storage space 12. That is, in the airtight connector water 100 according to the first embodiment, the extension 59 of the rete member naked before 52 can be inserted into the hole 20 when the terminal 30 is inserted into the terminal storage space 12 in a position other than the predetermined position, and, instead, the extension 59 can be inserted into the hole When the terminal 30 is inserted into the terminal storage space 12 in the predetermined position. It is therefore possible to detect whether the terminal 30 is properly inserted into the terminal storage space 12 or whether the terminal 30 is half-inserted into the terminal storage space 12. In a manner similar to the relation between the extension 59 and the terminal 30, only when the terminal 30 is properly inserted into the terminal storage space 12, the first and second projections 55 and 56 can be mounted in the first and second recesses 15b and 16b, respectively . The combination of the first and second protrusions 55 and 56 and the first and second recesses 15b and 16b can therefore make it possible to detect whether the terminal 30 is correctly inserted in the terminal storage space 12. In the waterproof connector 100 according to the first embodiment, the sealing unit 50 can be engaged in the recess 11 of the female housing 10 in a predetermined position by means of the locking ring 51. Therefore, the sealing unit 50 (FIG. and therefore the watertight connector 100) need not necessarily include indispensable components for the waterproof connector 200 shown in Figs. 13 to 19, such as the engagement piece 210 having the protrusion 212, and the recess 211 in which the first and second projections 213 and 214 are formed. Thus, the sealing unit 50, and therefore, the watertight connector 100 can be easily manufactured by a resin molding process. On the other hand, since the locking ring 51, the front retainer 52, and the water seal 53 are integrated with each other as a single piece in the waterproof connector. with the water 100 according to the first embodiment, the number of parts for the manufacture of the sealing unit 50 can be reduced, which ensures an improvement of a yield with which the sealing unit 50 is Assembly. In addition, the water seal 53 sandwiched between the outer surface of the locking ring 51 and the inner surface of the recess 11 provides sufficient watertightness performance for the waterproof connector. (Second Embodiment) A waterproof connector according to a second embodiment of the present invention is explained below, with reference to Figs. 10 to 12. As explained in detail below, the waterproof connector according to the second embodiment is adapted to include a sealing unit 60 in place of the aforementioned sealing unit 50 as compared to the watertight connector 100 according to the first embodiment. Therefore, parts or elements which correspond to the waterproof connector 100 according to the first embodiment have been provided with the same references, and function in the same way as the corresponding parts or elements in the first embodiment. unless explicitly explained below.
    [0012] Figures 10 and 11 illustrate the sealing unit 60 as part of the waterproof connector according to the second embodiment. As illustrated in FIG. 12, the sealing unit 60 includes a locking ring 61 and a front retainer 62. Each of the locking ring 61 and the front retainer 62 is a separate part. , and they can be connected to each other to define the sealing unit 60.
    [0013] Locking ring 61 has a rectangular cross section with rounded corners, and includes four extensions 63 extending horizontally from a rear peripheral edge 61a. The extensions 63 are located symmetrically with respect to each other with respect to a longitudinal center line of the locking ring 61. Each of the extensions 63 is in the form of a flat plate, and is formed with a vertical opening hole 64. The front retainer 62 includes an engagement portion 65 having a rectangular cross-section with rounded corners so as to be in intimate contact with the rear peripheral edge 61a of the locking ring 61, a a plurality of extensions 59 extending from the engagement portion 65 rearward, and four engagement projections 66 formed at proximal ends of the extensions 59. The engagement projections 66 are located in the alignment. extensions 63 of the locking ring 61 when the locking ring 61 is connected to the front retainer 62 in a manner mentioned later. Each of the engagement projections 66 is formed with an inclined surface 66a having an angle of inclination such that a portion thereof which is near a distal end of the extension 59 is further away from the extension. In other words, the inclined surface 66a is inclined toward a distal end of the extension 59. The locking ring 61 and the front retainer 62 are connected to each other as follows.
    [0014] As shown in Fig. 12, the engagement portion 65 of the front retainer 62 is caused to face the rear peripheral edge 61a of the lock ring 61, and then the front retainer 61 is moved in a direction indicated with an arrow S to thereby exert a force on the engagement portion 65 so that the engaging portion 65 comes into contact with the rear peripheral edge 61a. Thus, the extensions 63 slide along and along the inclined surfaces 66a of the engagement projections 66, and are simultaneously elastically deformed. The engagement protrusions 66 are then mounted in the through holes 64. Next, the extensions 63 which have been elastically deformed elastically return to their original shapes, i.e. forms on which it there are no forces acting. Thus, the engagement projections 66 are held mounted in the through holes 64. Performing the steps mentioned above, as shown in FIGS. 10 and 11, the lock ring 61 and the front retainer 62 are thus connected to each other so as to define the sealing unit 60. The sealing unit 60 thus assembled is incorporated in the female housing 10 so as to thereby define the waterproof connector according to the second embodiment. As mentioned above, the sealing unit 60 can be manufactured with improved efficiency with respect to the sealing unit 50 in the first embodiment, since a method comprising the locking ring 61 and the front retainer 62 each in the form of a separate part, and connecting the latter with each other so as to define the sealing unit 60 allows to easily manufacture the sealing unit 60 compared to the sealing unit 50 in which the locking ring 51 and the front retainer 52 are integrated with each other.
    [0015] The sealing unit 60 provides the same advantages as those provided by the sealing unit 50. Although the present invention has been described in connection with certain preferred embodiments, it should be understood that the material encompassed by this invention is not limited to these specific embodiments. On the contrary, the subject matter of the invention is intended to include all variants, modifications and the like which may be included in the spirit and scope of the invention.
    [0016] For example, the first recesses 15a and 15b, the second recesses 16a and 16b, the third recess 17, and the fourth recess 18 may be replaced by through holes, since the first to fourth protrusions 55, 56, 57 and 58 can be mounted not only in recesses, but also in through holes. The number of first to fourth protrusions 55, 56, 57 and 58 is not limited to one (1). The first to fourth projections 55, 56, 57 and 58 may be two or more, in which case the first to fourth recesses 15a to 18 are the same number. INDUSTRIAL APPLICATION The sealing unit and the waterproof connector both according to the present invention can be widely used in various industrial fields such as the electronic / electrical device industry and the automotive industry.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Watertight connector (100) characterized in that it comprises a first housing (10) formed with a recess (11), and a sealing unit (50) to be clamped between the first housing (10) and a second housing (70) mounted in the recess (11) to thereby maintain watertightness between the first and second housings (10,70), the sealing unit (50) comprising: a ring locking device (51) for causing the sealing unit (50) to engage the recess (11) in a predetermined position; a retainer (52) for preventing a terminal (30) which has been inserted into the first housing (10) from being removed from the first housing (10); and a water seal (53) sandwiched between an outer surface of the lock ring (51) and an inner surface of the recess (11), the lock ring (51), the retainer ( 52), and the water seal (53) being integrated with each other.
    [0002]
    2. watertight connector (100) according to claim 1, characterized in that it further comprises at least one projection (55, 56) protruding from the locking ring (51), and a plurality of recesses (15a, 15b, 16a, 16b) which are open on an inner surface of the recess (11), the projection (55, 56) being mountable in the recesses (15a, 16b, 16a, 16b).
    [0003]
    Watertight connector (100) according to claim 1, characterized in that the locking ring (51) comprises a first lateral edge (51A), and a second lateral edge (51B) spaced from the first lateral edge ( 51A) and facing the first side edge (51A), the sealing unit (50) further comprising a first projection (55) and a second projection (56), the first projection (55) being formed on the first side edge (51A), and extending outwardly from an outer surface of the locking ring (51) in a direction perpendicular to a longitudinal direction of the sealing unit (50), the second projection (56) ) being formed on the second lateral edge (518), and extending outwardly from an outer surface of the locking ring (51) in a direction perpendicular to a longitudinal direction of the sealing unit (50) , the first housing (10) being formed with at least two first recesses (15a, 15b) or first through-holes in which the first projection (55) is mounted, and at least two second recesses (16a, 16b) or second through-holes in which the second projection (56) is mounted, the first recesses (15a, 15b) or first 25 through-holes being spaced from each other in a direction in which the second housing (70) is inserted into the recess (11), the second recesses (16a, 16b) or second recesses through holes being spaced apart from each other in a direction in which the second housing (70) is inserted into the recess (11), a pitch between the first recesses (15a, 15b) or the first through holes being equal at a step between the second recesses (16a, 16b) or the second through holes.
    [0004]
    4. waterproof connector (100) according to claim 3, characterized in that the first projection (55) and the second projection (56) are located in a diagonal of the locking ring (51).
    [0005]
    Watertight connector (100) according to claim 3, characterized in that the locking ring (51) further comprises: a third projection (57) on the first lateral edge (51A) and which is spaced from the first protrusion (55), the third protrusion (57) extending outwardly from an outer surface of the locking ring (51) in a direction perpendicular to a longitudinal direction of the sealing unit ( 50); and a fourth protrusion (58) on the second side edge (51B) spaced from the second projection (56), the fourth protrusion (58) extending outwardly from an outer surface of the annular projection (58). locking (51) in a direction perpendicular to a longitudinal direction of the sealing unit (50).
    [0006]
    The watertight connector (100) according to claim 5, characterized in that the first and third projections (55, 57) are located on the first lateral edge (51A) symmetrically about the center of the ring. lock (51), and the second and fourth projections (56, 58) are located on the second side edge (51B) symmetrically around the center of the locking ring (51), one of a distance between the first and third projections (55, 57) and a distance between the second and fourth projections (56, 58) being larger than the other.
    [0007]
    Watertight connector (100) according to claim 3, characterized in that the first and second projections (55, 56) are located closer to the front of the locking ring (51) than the gasket. watertightness (53).
    [0008]
    Watertight connector (100) according to claim 1, characterized in that the retaining element (52) comprises at least one extension (59) which can be inserted into a hole (20) extending from the recess (11) such that a posture of a hook (19) engaged with the terminal (30) which has been inserted into the first housing (10) is kept uniform.
    [0009]
    Watertight connector (100) according to claim 1, characterized in that each of the locking ring (61) and the retaining element (62) is a separate part, and the locking ring ( 61) and the retaining element (62) can be connected to each other.
    [0010]
    Watertight connector (100) according to claim 9, characterized in that the locking ring (61) comprises at least one extension (63) extending horizontally from a front edge thereof, the extension (63) being formed with a vertical through-hole (64), the retaining element (62) including a projection (66) to be mounted in the vertical through-hole (64) when the locking ring (61) and the retainer (62) are connected to each other.
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    同族专利:
    公开号 | 公开日
    JP5835434B1|2015-12-24|
    JP2016033893A|2016-03-10|
    KR101688025B1|2016-12-20|
    US9337568B2|2016-05-10|
    CN105322356A|2016-02-10|
    DE102015214238A1|2016-02-04|
    KR20160016621A|2016-02-15|
    CN105322356B|2017-10-31|
    US20160036157A1|2016-02-04|
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    法律状态:
    2016-06-09| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-12| PLFP| Fee payment|Year of fee payment: 3 |
    2017-12-29| PLSC| Search report ready|Effective date: 20171229 |
    2018-05-07| PLFP| Fee payment|Year of fee payment: 4 |
    2019-06-06| PLFP| Fee payment|Year of fee payment: 5 |
    2020-04-03| RX| Complete rejection|Effective date: 20200224 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014156763A|JP5835434B1|2014-07-31|2014-07-31|Waterproof connector|
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