• 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:
    An electrical connector (100) includes a first housing (120) including a first wall (122), second and third walls (124A, 124B) that both extend in parallel from the first wall (122), and a fourth wall (123) connecting the second and third walls to each other, the first to fourth walls defining an interior space (121) in the first housing (120), and a second housing to be mounted in the space interior, the first housing comprising a first projection (122b) protruding into the interior space, and a first recess (124a) formed at the second and third walls, the second housing comprising a second recess through which the first projection is guided, a wall intended to abut with the first projection when the second housing is inserted in an upside-down position in the interior space, and a second projection to be my in the first recess.
    公开号:FR3017253A1
    申请号:FR1550911
    申请日:2015-02-05
    公开日:2015-08-07
    发明作者:Sakai Yagi；Takuya Takeda
    申请人:Dai Ichi Seiko Co Ltd；
    IPC主号:
    专利说明:

    [0001] The invention relates to an electrical connector comprising a first housing defining an interior space, and a second housing to be mounted in the interior space.
    [0002] An electrical connection is known comprising a pair of a first housing defining an interior space and a second housing to be mounted in the interior space of the first housing, in which case the first housing is formed with a projection protruding into space The second housing is formed with a recess in which the projection is mounted, to prevent the second housing from being mounted in the interior space in a twisted or upside down posture.
    [0003] An example of the electrical connector mentioned above is suggested in Japanese Utility Model Application Publication No. S58 (1983) -51586. Fig. 14 is a perspective view of a female connector 1001 as part of the suggested electrical connector, and Fig. 15 is a perspective view of a male connector 1101 as part of the suggested electrical connector. As shown in Fig. 14, the female connector 1001 is formed with a pair of grooves 1002 at the inner sidewall surfaces of an opening. As illustrated in Fig. 15, the male connector 1101 is formed with a pair of protrusions 1102 protruding outwardly from outer surfaces of the sidewalls. The projections 1102 are inserted into the grooves 1002 when the male connector 1101 is mounted in the female connector 1001.
    [0004] Another example of the above-mentioned electrical connector is suggested in Japanese Patent Application Publication No. 2004-103449. Fig. 16 is a front view of a male housing 1100 of the suggested electrical connector, and Fig. 17 is a front view of a female housing 1110 of the suggested electrical connector. The male housing 1100 includes a cover 1101 in which the housing 1110 is mounted. The cover 1101 is formed at an inner surface with first protrusions 1102 protruding into the cover 1101, and second projections 1103 extending from the first protrusions 1102. The first and second protrusions 1102 and 1103 are shaped The female housing 1110 is formed with first portions 1111 and second portions 1112 extending from the first portions 1111. The first and second portions 1111 and 1112 define L-shaped grooves 1113 in which the first and second portions 1111 and 1112 define L-shaped grooves 1113 in which the first and second portions 1111 and 1112 define L-shaped grooves 1113. protrusions 1102 and 1103 are inserted to thereby prevent the hood 1101 from being externally deformed. Fig. 18 is a perspective view of a conventional male electrical connector 2100 having an outer housing 2101 defining an interior space 2102, and Fig. 19 is a perspective view of a conventional female electrical connector 2200 having an inner housing 2201 in front of It is assumed that the inner case 2201 is mounted in an improper position, especially upside down in the interior space 2102 of the outer case 2101. The outer case 2101 is mounted in the interior space 2102 of the outer case 2101. formed with a pair of protrusions 2103 protruding into the interior space 2102 from an inner surface of the interior space 2102. The inner housing 2201 is formed with a pair of grooves 2202 in which the protrusions 2103 can be mounted only when the inner housing 2201 is mounted in a proper position in the interior space 2102 of the outer housing 2101. By co Accordingly, if the inner case 2201 is inserted upside down into the inner space 2102 of the outer case 2101, the projections 2103 abut with a thin-walled bottom 2203 of the inner case 2201. If the projections 2103 of the outer case 2101 abutting against the thin-walled bottom 2203 of the inner housing 2201, the thin-walled bottom 2203 may be damaged.
    [0005] Because of the above-mentioned problem in the conventional electrical connector, it is an object of the present invention to provide an electrical connector capable of preventing a thin-walled portion of an inner housing from being damaged, even if the inner case is inserted upside down into an interior space of an outer casing, thereby providing high reliability for connecting the inner and outer casings with each other.
    [0006] According to one aspect of the present invention, there is provided an electrical connector comprising a first housing comprising a first wall, second and third walls which both extend in parallel from the first wall, and a fourth wall connecting the second and third walls. walls to one another, the first to fourth walls defining an interior space in the first housing, and a second housing to be mounted in the interior space, the first housing comprising a first projection protruding into the interior space from an inner surface of the first wall, and a first recess formed at the second and third walls, the second housing comprising a second recess through which the first projection is guided, a wall for abutting with the first projection when the second housing is inserted in an upside down posture into the interior space, and a second projection to be mounted in the first recess.
    [0007] Even if the first projection of the first housing abuts with the wall of the second housing when the second housing is inserted upside down into the interior of the first housing, the second projection of the second housing abuts with the first housing to thereby reducing a compressive force exerted by the first projection on the wall. For example, the wall is defined as an outer wall thinned by an interior space having a first opening through which a template is inserted into the space. Even if the wall consists of a wall thinned by a structure of the electrical connector, the wall can be prevented from being damaged. Alternatively, the wall may be defined as a wall formed between a first opening formed at the front of the second housing and a second opening formed at the front of the second housing above the first opening. It is preferable that the first recess is formed at each of the second and third walls in face-to-face relationship. By forming the first recess at each of the second and third walls, even if the second projection to be mounted in the first recess is of a short length, a total length of the second protrusions contributes to the improvement of a resistance of the second recesses. second projections. It is preferred that the first recess 5 is formed in a location other than a center of the second and third walls in a direction in the direction of the height of the second and third walls. For example, the first recess may be formed at one end of the second and third walls in the direction of height. If the second housing is forced to be inserted into the first housing in an upside-down posture, the second projection to be mounted in the first recess attempts to spread a side wall of the first housing outward to enter in the interior space of the first housing. However, since the first recess is formed at the end of the second and third walls in the height direction, the second projection abuts with the side wall of the first housing, and therefore, the side wall has difficulties to move outward. It is preferred that the first recess be formed at one end opposite an end of the second and third walls located closer to the first projection. If the second housing is forced to be inserted into the first housing in an upside down posture, the second projection to be mounted in the first recess abuts with the first housing adjacent the first projection. Thus, the second projection reduces a compressive force exerted by the first projection on the wall, abutting with the side wall of the first housing in the vicinity of the first projection.
    [0008] It is preferable that the first recess is formed at the inner surfaces of the second and third walls each having a flat outer surface.
    [0009] The second and third walls do not have a portion raised on an outer surface thereof. Therefore, the first housing may be designed to have a reduced width compared to a housing having sidewalls having portions raised on an outer surface thereof as a function of the first recess. It is preferable that the second projection is formed at the wall relative to the fourth wall.
    [0010] If the second housing is forced to be inserted into the first housing in an upside down posture, the second projection abuts with the side wall of the first housing. Thus, the second projection reduces a compressive force exerted by the first projection on the wall, abutting with a first housing. The advantages obtained by the sidewall of the present invention mentioned above will be described below. In the electrical connector according to the present invention, the second projection of the second housing abuts with the first housing to thereby reduce a compressive force exerted by the first projection on the wall. Therefore, even if the second housing is forced to be inserted into the first housing in an upside down posture, it is possible to prevent the wall of the second housing from being damaged, ensuring high reliability in the connection of the housing. first and second housings with each other.
    [0011] Figure 1 is a perspective view of the front and top of a male electrical connector having a portion of the electrical connector according to a preferred embodiment of the present invention.
    [0012] Figure 2 is a perspective view of the front and bottom of the male electrical connector shown in Figure 1. Figure 3 is a front view of the male electrical connector shown in Figure 1.
    [0013] Figure 4 is a perspective view of the front and top of a female electrical connector having a portion of the electrical connector according to a preferred embodiment of the present invention. FIG. 5 is a perspective view of the front and bottom of the female electrical connector illustrated in FIG. 4. FIG. 6 is a front view of the female electrical connector illustrated in FIG. 4. FIG. sectional view of the female electrical connector shown in FIGS. 4 to 6. FIG. 8 is a perspective view of a connector terminal to be inserted into the female electrical connector shown in FIG. 4. FIG. Fig. 10 is a plan view illustrating that an inner housing of the female electrical connector shown in Fig. 4 is inserted into a normal posture in an outer casing of the electrical connector. Figure 11 is a sectional view along a line AA shown in Figure 10. Figure 12 is a plan view illustrating the fact that the inner housing of the The female electrical connector illustrated in FIG. 4 is inserted in an upside down posture into an outer casing of the male electrical connector shown in FIG. 1. FIG. 13 is a sectional view along a line BB shown in FIG. Figure 14 is a perspective view of a female connector of a conventional electrical connector. Figure 15 is a perspective view of a male connector to be mounted in the female connector shown in Figure 14. Figure 16 is a front view of a male housing of a conventional electrical connector. Figure 17 is a front view of a female housing in which the male housing illustrated in Figure 16 is mounted. Figure 18 is a perspective view of an outer casing of a conventional electrical connector. Fig. 19 is a perspective view of an inner housing to be mounted in the outer housing shown in Fig. 18. The electrical connector according to a preferred embodiment of the present invention is explained below with reference to drawings. In the description, the term "before" refers to a side on which electrical connectors are connected to each other, and the term "back" refers to its opposite side. The term "bottom" or "bottom" refers to a side on which the electrical connector is mounted on a printed circuit, and the term "top" or "top" refers to its opposite side. A male electrical connector 100 illustrated in FIGS. 1 to 3 is mounted on a printed circuit (not shown), and is electrically connected to a female electrical connector 200 illustrated in FIGS. 4 to 6. The male electrical connector 100 comprises a plurality of male connector terminals 110, an outer housing 120, and a fixing unit (not shown) through which the outer housing 110 is fixed to a printed circuit by welding, for example. As shown in Figure 3, the male connector terminals 110 are disposed in an interior space defined in the outer housing 120 horizontally in two rows and vertically in three columns (six male connector terminals 110 in total). The male connector terminals 110 disposed in the upper and lower rows are deflected at the centers thereof relative to one another. Each of the male connector terminals 110 comprises a pin-shaped pin 111, a terminal body (not shown), and an outer lead 113 to be mechanically and electrically connected to a metal stud mounted on a printed circuit. The pin 111 is inserted into a female connector terminal housed in the female electrical connector 200, and comes into electrical contact therewith. The terminal body is inserted into through holes formed through the outer housing 120. The outer lead wire 113 protrudes out of the outer housing 120 through the rear of the outer housing 120. As shown in FIG. outer lead wire 113 comprises at a distal end a connecting portion 113a through which the outer lead wire 113 is connected by means of a solder to a metal stud formed as a signal terminal on a printed circuit board.
    [0014] The outer housing 120 includes an upper wall 122, a lower wall 123, side walls 124A and 124B extending parallel to each other between the top wall 122 and the bottom wall 123, and a rear wall 125. The walls 122, 123, 124A, 124B and 125 define an interior space 121 in which the female electrical connector 200 is inserted parallel to a plane defined by a printed circuit. The interior space 121 defines an opening 121a at the front of the outer housing 120. The outer housing 120 contacts, via the bottom wall 123, with a printed circuit, and is mounted thereon. The top wall 122 includes at an inner surface and at a center of the opening 121a a guide 122a in which a locking arm of the female electrical connector 200 is inserted. The locking arm of the female electrical connector 200 is explained later. As illustrated in Figure 2, the guide 122a includes an inclined surface 122c having a smaller thickness in a location closer to the opening 121a of the interior space 121, and a recess 122d with which the locking arm is engaged. The top wall 122 includes at an inner surface a pair of first projections 122b protruding into the interior space 121. As shown in FIGS. 1 and 2, the first projections 122b are located to enclose the guide 122a. between them. The first projections 122b are linearly formed to extend from the opening 121a to the rear wall 125 in a direction in which the female electrical connector 200 is inserted into the interior space 121.
    [0015] The first protrusions 122b prevent a type of female electrical connector other than the female electrical connector 200 from being inserted into the interior space 121, preventing the female electrical connector 200 from being inserted into an inclined posture into the interior space 121, and prevent the female electrical connector 200 from being inserted into an upside-down posture into the interior space 121 The bottom wall 123 includes, at an inner surface and at opposite ends in a direction in the direction width, a pair of linear recesses 123a extending in a direction in which the female electrical connector 200 is inserted into the interior space 121.
    [0016] Each of the side walls 124A and 124B is formed with a first recess 124a in a face-to-face relationship, as shown in Fig. 1. The first recesses 124a extend linearly in a direction in which the female electrical connector 200 is inserted into the interior space 121. The first recesses 124a are formed at one end of the side walls 124A and 124B in a height direction of the outer housing 120. For example, if the first recesses 124a were formed at a center 124A and 124B sidewalls in a height direction of the outer housing 120, the inner housing 220 could be inserted into the inner space 121 of the outer housing 120 even if the inner housing 220 is upside down or inverted. Therefore, it is necessary that the first recesses 124a are formed at an upper or lower end of the side walls 124A and 124B. In the embodiment, the first recesses 124a are formed at a lower end of the side walls 124A and 124B of the outer housing 120. In other words, the first recesses 124a are formed at one end of the walls 124A and 124B which are opposite an end closer to the first projections 122b. The first recesses 124a are formed at the inner surfaces of the sidewalls 124A and 124B. Exterior surfaces of the sidewalls 124A and 114B are formed as flat surfaces.
    [0017] Side wall 124B comprises at a center of an inner surface a second projection 124b, as illustrated in FIGS. 1 and 2. The second projection 124b extends linearly in a direction in which the female electrical connector 200 is inserted into the interior space 121. The side walls 124A and 124B comprise on an outer surface a slot unit 124c in which a slot unit is inserted such that the male electrical connector 100 is mounted on a printed circuit board by the intermediate of the fixing unit. As illustrated in FIGS. 1 and 2, the rear wall 125 comprises, on an outer surface and at the opposite ends in a direction in the width direction of the outer housing 120, vertical walls 126 between which are the connection portions 113a of the male connector terminals 110. The vertical walls 126 protect the connection portions 113a. The female electrical connector 200 is explained below with reference to the drawings. The female electrical connector 200 illustrated in FIGS. 4 to 7 comprises a plurality of female connector terminals 210, an inner case 220, and a locking arm 230.
    [0018] As illustrated in Figures 7 to 9, each of the female connector terminals 210 includes an electrically conductive sheath portion 211 to be inserted into the inner housing 220, an elastic contact piece 212 housed in the sheath portion 211 in a such that the contact piece 212 is electrically connected to the sleeve portion 211, and a beam unit 213 in continuity with a rear end of the sleeve portion 211 to compress a cable (not shown) so as to thus securing the cable to the female connector terminal 210. The sleeve portion 211, the elastic contact piece 212 and the beam unit 213 may be formed integrally with one another by folding a electrically conductive sheet. Alternatively, the elastic contact piece 212 and the sheath portion 211 may be fabricated as separate parts from each other. The sleeve portion 211 comprises a bottom 211a, a pair of side walls 211b, and a ceiling 211d. The sleeve portion 211 may be formed by punching a sheet into a desired shape, and folding the punched sheet into a quadratic prism. One of the side walls 211b of the sleeve portion 211 is formed with a stabilizer 211e to prevent the inner housing 220 from being inserted into the interior space 121 of the outer housing 120 in an upside down posture, and to stabilize in addition to the female connector terminal 210 in a posture once the female connector terminal 210 is inserted into the inner housing 220. Each of the side walls 211b of the sleeve portion 211 is formed with a cutout 211f in which a leg portion 212b of the resilient contact piece 212 is mounted, as illustrated in FIG. 8. The resilient contact piece 212 consists of a curved flat spring positioned on the bottom 211a in a direction along the length of the spring. the sleeve portion 211. The resilient contact piece 212 comprises a curved flat spring 212a, a pair of leg portions 212b extending from side edges of the flat spring 212a. at a center of the flat spring 212a in a direction along the length of the flat spring 212a, in a direction perpendicular to the longitudinal direction of the flat spring 212a, and a raised portion 212c at the a center of the flat spring 212a in the direction of the length of the flat spring 212a. The raised portion 212c comes into contact with the male connector terminal 110. The elastic contact piece 212 is supported, at a front edge 212d and at a rear edge 212e, on the bottom 211a of the housing portion. The lug portions 212b located at a center in a lengthwise direction of the sheath portion 211 are mounted in the blanks 211f formed at the side walls 211b to thereby prevent resilient contact piece 211 to move to the ceiling 211d. Thus, even if the leading edge 212d and the trailing edge 212e are free edges, the resilient contact piece 211 may act as a curved flat spring. The raised portion 212c is formed to have a curved surface by pressing a lower surface of the flat spring 212a. As illustrated in Figures 4 to 7, the inner housing 220 has a plurality of terminal spaces 220a each of which is in the form of a rectangular parallelepiped and in each of which the female connector terminal 210 is inserted. An arrangement of the terminal spaces 220a is identical to that of the male connector terminals 110 housed in the male electrical connector 100 (see FIG. 3). More specifically, the terminal spaces 220a are arranged horizontally in two rows and vertically in three columns. The inner housing 220 includes at the front 221 a plurality of first openings 221a, a plurality of second openings 221b, and a plurality of third openings 221c. The male connector terminals 110 are inserted into the inner housing 220 through the first openings 221a to electrically connect to the female connector terminals 210 housed in the terminal spaces 220a. A template for pulling the female connector terminal 210 out of the inner case 220 is inserted into the inner case 220 through the second opening 221b. The third opening 221c leads to a space 220b mentioned later (see Figure 7).
    [0019] A lower wall 222a of the inner housing 220 consists of a thin wall thinned by the third opening 221c. On the other hand, a partition wall 221d (see FIG. 5) formed between the second opening 221b and the third opening 221c also consists of a thin wall. Each of the side walls 223 of the inner housing 220 includes on an outer surface and at a bottom a third projection 223a to be mounted in the first recess 124a. The third projection 223a extends linearly in a direction in which the female electrical connector 200 is inserted into the interior space 121. Since the third projections 223a are at a bottom of the side walls 223, the third projections 223a are level with the bottom wall 222a composed of a thin wall. One of the side walls 223 of the inner housing 220 includes, on an outer surface and at a center in a height direction, a third recess 223b in which the second projection 124b is mounted. The third recess 223b extends linearly in a direction in which the female electrical connector 200 is inserted into the interior space 121.
    [0020] A pair of second recesses 224a is formed on an outer surface of a ceiling 224 of the inner housing 220 to allow the first projections 122b of the outer housing 120 to fit within it. The locking arm 230 is located between the second recesses 224a. The bottom wall 222a composed of a thin wall is explained below, with reference to Fig. 7. After being inserted into the terminal space 220a, the female connector terminal 210 is engaged with a snap portion 225. The hook portion 225 includes a hook portion 225a having a distal end shaped sharply toward the female connector terminal 210 to engage the female connector terminal 210, and a thin elastic wall portion 225b. extending between the hook portion 225a and the front 221 of the inner housing 200. The female connector terminal 210 is engaged with the hook portion 225a to thereby prevent the female connector terminal 210 from being removed from the housing. terminal space 220a. In order to pull the female connector terminal 210 out of the inner space 220a, a template (not shown) is inserted into the second aperture 221b to move the engaging portion 225 in a direction away from the female connector 210. The elastic thin wall portion 225b is thereby urged by the template, and therefore, the elastic thin wall portion 225b and the hook portion 225a are deformed toward the space 220b, thereby releasing the connector terminal engagement female 210 with the hook portion 225a. The female connector terminal 210 is then pulled through the rear of the inner housing 220. The female connector terminal 210 is thus removed from the inner housing 220. As mentioned above, the space 220b is formed to allow at the latching portion 225 to move therein thereby to release the female connector terminal 210 from the latching portion 225 when the female connector terminal 210 is removed from the inner case 210. Since the space 220b is formed in the inner case 220, the bottom wall 222a is inevitably thin. Assuming that the inner housing 220 is designed not to include the bottom wall 222a and that the space 220b is therefore exposed to the outside, there is no wall with which the template abuts, so that that the engaging portion 225 may move excessively if the template is moved too far.
    [0021] In contrast, the inner housing 220 in the embodiment is adapted to include the bottom wall 222a to separate the space 220b from the outside environment, so that the template is prevented from moving beyond the bottom wall. 222a. Thus, the inner housing 220 requires including the bottom wall 222a. For this reason, the inner housing 220 is designed to include the bottom wall 222a to separate the space 220b from the outside environment.
    [0022] In addition, the partition wall 221d separating the third opening 221c leading to the space 220b and the second opening 221b through which the template is inserted into the inner housing 220 consists of a thin wall. As shown in Fig. 5, the bottom wall 222a comprises at an outer surface a recess and slots 222b leading to the space 220b. The space 220b is positioned downward in a direction in the direction of the height. Therefore, a wall through which the gap 220b is formed in a mold used to make the inner housing 220 with resin is inevitably thin, and therefore can not have sufficient strength. Thus, ribs are formed at the wall to reinforce the wall. The ribs define the slots 222b in the inner housing 220. The wall defines the third opening 221c. The bottom wall 222a comprises at opposite ends in a width direction a pair of linear projections 222c to be mounted in the linear recesses 123a (see Fig. 1) of the outer housing 120. As shown In FIGS. 4 to 7, the locking arm 230 comprises a front end 231 connected to the inner housing 220, an arm body 232 supported at one end by the front end 231, a release member 233 used to release the connector male electrical 100 of the inner housing 220 of the female connector 200, and a rear end 234 connected to the inner housing 220 and located below the release member 233. When the release member 233 is pushed down to thus being lowered, the front end 231 is elastically deformed. The arm body 232 is formed with an engagement hook 235 to be engaged with the male electrical connector 100 to thereby lock the female electrical connector 200 to the outer housing 120. The release member 233 extends obliquely to the top toward the rear end 234 from the arm body 232 between the engagement hook 235 and the rear end 234. When the release member 233 is pushed down to thereby be lowered, the body of the arm 232 is elastically deformed with the front end 231 and the rear end 234 both acting as fulcrums, and the release member 223 then abuts with the rear end 234. The body arm 232 is then elastically deformed with the front end 231 and an abutment point which act both as fulcrums. A stop point here is a point at which the release member 233 abuts with the rear end 234. The male electrical connector 100 is thus released from the inner housing 220 of the female connector 200. The outer housing 120 of the connector male electrical 100 and the inner housing 220 of the female electrical connector 200 are mounted one inside the other as follows. First, a case in which the female electrical connector 200 is mounted in a normal posture in the interior space 121 of the male electrical connector 100 is explained below with reference to FIGS. 10 and 11. As illustrated in FIG. Figures 10 and 11, when the female electrical connector 200 is mounted in a normal posture in the inner space 121 of the male electrical connector 100, the locking arm 230 is inserted into the guide 122a formed at the top wall 122 of the outer housing 120. The first projections 122b formed at the top wall 122 of the outer housing 120 are mounted in the second recesses 224a formed at the ceiling 224 of the inner housing 220. In addition, the third projections 223a formed at the walls 223 of the inner housing 220 are mounted in the first recesses 124a formed at the side walls 124A and 124B d The second projection 124b formed at the side wall 124B of the outer housing 120 is mounted in the third recess 223b formed at the side wall 223 of the inner housing 220.
    [0023] The linear protrusions 222c formed at the bottom wall 222a of the inner housing 220 are mounted in the recesses 123a formed at the bottom wall 123 of the outer housing 120. As mentioned above, the protrusions of the inner housing 220 are mounted in the recesses of the outer casing 120, and the projections of the outer casing 120 are mounted in the recesses of the inner casing 220 when the female electrical connector 200 is mounted in the inner space 121 of the male electrical connector 100. A case in which a user attempts to insert the female electrical connector 200 into the inner space 121 of the male electrical connector 100 with one of the male electrical connector 100 and the female electrical connector 200 which is in an upside-down posture is explained above. below with reference to FIGS. 12 and 13. More specifically, the upper wall 122 and the lower wall 123 of the outer housing 120 are in an upside down posture, or the side walls 124A and 124B of the outer housing 120 are in a replacement position of the right and left relative to each other. Alternatively, the ceiling 224 and the bottom wall 222a of the inner housing 220 are in an upside down posture, or the sidewalls 223 of the inner housing 220 are in a replacement position for the right and left one. compared to each other. As illustrated in Figures 12 and 13, in the case where one of the male electrical connector 100 and the female electrical connector 200 is upside down or inverted, the second projection 124b formed at the sidewall 124B of the outer housing 120 abuts with the front 221 of the inner housing 220. The front end 231 of the locking arm 230 abuts with the lower wall 123 of the outer housing 120. Even if the second projection 124b of the outer housing 120 comes from in abutment with the front 221 of the inner housing 220, or the locking arm 230 of the inner housing 220 abuts with the lower wall 123 of the outer housing 120, the front 221 of the inner housing 220 and the lower wall 123 of the outer casing 120 have a sufficient thickness and are therefore not damaged. The inner housing 220 can not be inserted into the interior space 122a of the outer housing 120. The first projections 122b formed at the upper wall level 122 of the outer housing 120 partially abut with the bottom wall 222a of the inner housing 220. Moreover, the first projections 122b interfere with the partition wall 221d separating the third opening 221c and the second opening 221b from each other. A portion of the bottom wall 222a with which the first projections 122b abut, and the partition wall 221d with which the first projections 122b abut both consist of a thin wall. Since the lower wall 222a and the partition wall 221d are thinner than the other parts with which the first projections 122b abut, the bottom wall 222a and the partition wall 221d can be damaged and / or cracked if the inner housing 220 is forced to be inserted into the inner space 122a of the outer housing 120 with the first projection 122b abutting with the bottom wall 222a and the partition wall 221d. The side walls 223 of the inner housing 220 in the embodiment are formed with the third projections 223a to be mounted in the first 15 recesses 124a of the outer housing 120. The third projections 223a abut with the housing side walls 124A and 124B. 120, which weakens a compressive force exerted by the first projections 122b on the bottom wall 222a and the partition wall 221d. In particular, since the first recesses 124a in which the third projections 223a are mounted are formed at the end of the side walls 124A and 124B opposite the end of the side walls 124A and 124B closer to the first projections 122b, if the inner housing 220 is upside down, the third projections 223a abut with the opening 121a at the end of the side walls 124A and 124B closer to the first projections 122b. Therefore, a compressive force exerted by the first projections 122b on the bottom wall 222a and the partition wall 221d can be reduced by the third projections 223a abutting with the side walls 124A and 124B adjacent the first projections 122b. In addition, since the third projections 223a of the inner housing 220 are formed in a position in correspondence with the thin walls 222a and 221d, even if the inner housing 220 is mounted in an upside down posture in the interior space 121 of the housing 120 outside, the third projections 223a abut with the side walls 124A and 124B of the outer housing 120, which ensures that a compressive force exerted by the first projections 122b on the thin walls 222a and 221d can be reduced by the third protrusions 223a abutting with the side walls 124A and 124B of the outer housing 120.
    [0024] Therefore, if a user attempts to insert the inner housing 220 in an upside down posture into the interior space 121 of the outer housing 120, it is possible to prevent the thin walls 222a and 221d from being damaged even if the bottom wall 222a consists of a thin wall due to the space 220b, or if the partition wall 221d which separates the second and third openings 221b and 221c from each other is composed of a thin wall . Thus, the electrical connector according to the embodiment provides high reliability to the electrical and mechanical connection between the male electrical connector 100 and the female electrical connector 200. The first recesses 124a are formed at the side walls 124A and 124B in face relation face-to-face and at the same height as the bottom wall 123, and the third projections 223a extend from the side walls 223 of the inner housing 220. Thus, even if a length of protrusion of the third projections 223a from the side walls 223 is short a total protrusion length of the third projections 223a ensures that the third projections 223a securely abut with the side walls 124A and 124B of the outer housing 120. This further ensures that the thin walls 222a and 221d are protected, and the third protrusions 223a may have improved strength. For example, in the case where the third projections 223a are formed at the sidewalls 223 in a center in a direction in the height direction of the sidewalls 223, if the inner case 120 is forced to be inserted into the space inside 121 of the outer casing 120 in an upside down posture, the third projections 223a may move outwardly or deform the side walls 124A and 124B of the outer casing 120 to enter the interior space 121 of the casing 110, in which case the first projections 122b compress and thus damage the thin walls 222a and 221d. However, since the third projections 223a are formed at one end of the sidewalls 223 in a direction in the height direction of the sidewalls 223, the third projections 223a abut with the sidewalls 124A and 124B of the outer housing. 120 in the vicinity of a connection at which the side walls 124A and 124B are connected to the upper wall 122, and therefore the side walls 124A and 124B are hardly deformed or spread outwardly. Thus, it is possible to prevent the inner housing 220 from being mounted in an upside down posture in the interior space 121 of the outer housing 120. The side walls 124A and 124B have an outer planar surface. Therefore, the outer casing 120 may be narrower in width than an outer casing in which side walls are raised on an outer surface in accordance with the first recesses 124a. In the embodiment, the bottom wall 222a consists of a thin wall due to the space 220b. The other wall may consist of a thin wall. INDUSTRIAL APPLICATION The electrical connector according to the present invention is suitable for an electrical connector, as a connector for connecting cables to each other in order to allow electrical signals to pass through, in order to be widely used in different fields such as the automotive industry, the electrical / electronic equipment industry and various machine industries.
    权利要求:
    Claims (9)
    [0001]
    REVENDICATIONS1. Electrical connector (100, 200) characterized in that it comprises: a first housing (120) comprising a first wall (122), second and third walls (124A, 124B) which both extend in parallel from the first wall (122), and a fourth wall (123) connecting the second and third walls (124A, 124B) to each other, the first to fourth walls (122, 124A, 124B, 123) defining an interior space (121) in the first housing (120); and a second housing (220) to be mounted in the interior space (121), the first housing (120) comprising: a first projection (122b) projecting into the interior space (121) from an interior surface of the first wall (122); and a first recess (124a) formed at the second and third walls (124A, 124B), the second housing (220) comprising: a second recess (224a) through which the first projection (122b) is guided; a wall (222a, 221d) for abutment with the first projection (122b) when the second housing (220) is inserted in an upside down posture into the interior space (121); and a second projection (223a) to be mounted in the first recess (124a).
    [0002]
    Electrical connector (100, 200) according to claim 1, characterized in that the wall (222a, 221d) has an outer wall (222a) thinned by an interior space (220b) having a first opening (221c) through which a template is inserted into the space (220b).
    [0003]
    3. Electrical connector (100, 200) according to claim 1 or 2, characterized in that the wall (222a, 221d) has a wall (221d) formed between a first opening (221c) formed at the front (221d). ) of the second housing (220) and a second opening (221b) formed at the front (221) of the second housing (220) above the first opening (221c).
    [0004]
    4. Electrical connector (100, 200) according to any one of claims 1 to 3, characterized in that the first recess (124a) is formed at each of the second and third walls (124A, 124B) in relation to face.
    [0005]
    5. Electrical connector (100, 200) according to any one of claims 1 to 4, characterized in that the first recess (124a) is formed in a location other than a center of the second and third walls (124A, 124B) in a direction in the direction of the height of the second and third walls (124A, 124B).
    [0006]
    6. Electrical connector (100, 200) according to any one of claims 1 to 5, characterized in that the first recess (124a) is formed at one end of the second and third walls (124A, 124B) in the direction in the direction of the height.
    [0007]
    7. Electrical connector (100, 200) according to any one of claims 1 to 6, characterized in that the first recess (124a) is formed at one end opposite an end of the second and third walls (124A, 124B) located closer to the first projection (122b).
    [0008]
    8. Electrical connector (100, 200) according to any one of claims 1 to 7, characterized in that the first recess (124a) is formed at the inner surfaces of the second and third walls (124A, 124B) each having a flat outer surface.
    [0009]
    9. Electrical connector (100, 200) according to any one of claims 1 to 8, characterized in that the second projection (223a) is formed at the same level as the wall (222a, 221d) relative to the fourth wall ( 123).
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    法律状态:
    2015-12-29| PLFP| Fee payment|Year of fee payment: 2 |
    2016-12-29| PLFP| Fee payment|Year of fee payment: 3 |
    2017-12-22| PLSC| Search report ready|Effective date: 20171222 |
    2017-12-27| PLFP| Fee payment|Year of fee payment: 4 |
    2019-01-09| PLFP| Fee payment|Year of fee payment: 5 |
    2019-12-19| PLFP| Fee payment|Year of fee payment: 6 |
    2021-02-24| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014021522|2014-02-06|
    JP2014021522A|JP5708837B1|2014-02-06|2014-02-06|Connector terminal|
    JP2014045428|2014-03-07|
    JP2014045428A|JP5737446B1|2014-03-07|2014-03-07|Electrical connector mating structure|
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