TWM377717U - Electrical connector - Google Patents

Description

M377717 V. New Description: [New Technology Field] This creation is about an electrical connector, especially an electrical connector that makes the inner metal casing difficult to detach and the outer side walls of the outer metal casing are not easily deformed. . [Prior Art] The Republic of China Patent Application No. 8 8 2 1 9 9 2 4 discloses a conventional electrical connector. In order to enhance the stability of the inner shielding case, the two sides of the elastic piece are respectively extended outwardly. At the side wall of the metal casing, and the end of the elastic piece is bent to be hooked into the fitting hole of the metal casing. However, although the above-mentioned electrical connector uses the elastic piece to be hooked on the metal casing to increase the stability of the inner shielding case, since the elastic piece is folded over the outer side of the metal casing, the elastic piece is also due to the plug electrical connector ( The figure is not loosely inserted and loosened, so that the inner shielding case can still be loosened in the direction in which the plug electrical connector is pulled out. Moreover, when the inner shielding shell is assembled, the elastic piece must be bent to be hooked to the metal casing, so that the assembly process is complicated and the process is not easy to control the pipe and the edge, and the creator feels the above problem. Improvement is to study and cooperate with the application of academic theory, and propose a creative design that is reasonable and effective in changing the problem. Mouth [New content] The main purpose of this creation is to provide an electrical connection that can be (4) the metal casing does not detach and the outer side walls of the outer metal casing are not easily deformed. In order to achieve the above object, the present invention provides an electrical connector, the M377717 includes: an outer metal housing having opposite front and rear ends, the outer metal housing having an opening formed at the front end; an insulating housing, The housing is housed in the outer metal housing, and the insulating housing has at least one direction toward the opening

An extended partition; a plurality of conductive terminals disposed on the insulating housing; and at least one inner metal housing correspondingly disposed on the partition, the inner metal housing including a front wall disposed on a front side of the partition And two transverse walls extending from the upper and lower sides of the front wall and provided on the upper and lower sides of the partition, and the opposite sides of one of the transverse walls are respectively bent and extended toward the other transverse wall The two outer bent portions have two opposite side walls and two hook pieces respectively connected to the two side walls and corresponding to the two bent portions of the metal inner body of the shai, the reference piece includes one a front sill portion extending from the side wall toward the opening direction, and a side wall portion connected to the front wall portion and extending from the side portion of the inner metal casing The wall portion supports the front side of the bent portion of the inner metal casing and the side wall portion of the hook piece abuts against the inner side of the bent portion of the inner metal casing.

The creation has the following beneficial effects: the creation of the electrical connector can utilize the outer portion of the hook of the outer door to block the bent portion of the inner metal casing, so that the inner metal casing is not easily outer metal casing. Disengaged, at the same time, the inner metal shell == the side wall portion of the hook piece, so that the outer metal is easily deformed. In: Step to understand the characteristics and technical content of this creation, please refer to the reference and description, not the schema only ^ [Embodiment] # used to limit the creation of this creation. Please refer to the first to fourth figures, which are designed for the STANDARD TYPE MJ77717, which includes: an outer metal casing i. 〇, an insulating housing (including two tongue and groove modules 20, 30, and support frame 40), and - inner metal housing 5 〇. The outer metal casing 1 is made of a metal material and has a front end 1 〇 1 and a rear end 1 〇 2, and the outer metal casing is formed at the front end to form an opening 103 ^ ^ an insulating housing The three-piece design in the present embodiment is such that the first and second tongue modules 2 〇, 3 〇 ' and the support frame 40 between the two tongue modules 2 〇, 30 are mutually Alternatively, the insulative housing may be a one-piece design (not shown), wherein the first and second tongue modules 20, 30 each include a body 21, 31, and a plurality of conductive terminals 22, 32. The main body 21, 31 has a base 21 1 , 311 , and a tongue plate 2 1 2 , 3 1 2 extending from the base 2 1 1 , 3 1 1 toward the opening 1 〇 3 . The majority of the conductive terminals 2 2 of the group 20 are made of a metal material having electrical conductivity and elasticity, and include a row of first conductive terminals 2 2 1 and a row of second conductive terminals 2 2 2 . The conductive terminals 2 2 1 and 2 2 2 respectively include a contact 2 2 1 2, 2 2 2 2 which is bent and extended in the direction of the opening 1 〇 3, and a welded portion 2 2 1 4 , 2 2 2 4 extending downward. ° first, second The conductive terminals 221, 222 are assembled to the tongue plate 21 of the main body 21, the contact portion 2 2 1 2 of the first conductive terminal 2 2 1 protrudes from one side surface of the tongue plate 2 1 2, and the welded portion 2 2 1 4 The base portion 211 is extended downward, and the contact portion 2 2 2 2 of the second conductive terminal 222 is also exposed on the same side surface of the tongue plate 2 12 , and the solder portion 2 2 2 4 extends downward from the base 2 1 1. M377717, whereby the contact portion 2 2 1 2 of the first conductive terminal 2 2 1 and the contact portion 2 2 2 2 of the second conductive terminal 2 2 2 are alternately arranged, and the second conductive terminal 2 2 2 The contact portion 2 2 2 2 is in front of the contact portion 2 2 1 2 of the first conductive terminal 2 2 1 , and the solder portion 2 2 1 4 , 2 2 2 of the first and second conductive terminals 2 2 1 , 2 2 2 4 is arranged in front and back.

Please refer to the third and fourth figures. The conductive terminal 3 2 of the second tongue module 3 同样 also includes a row of first conductive terminals 3 2 丄 and a row of second conductive terminals 3 2 2 '--, second The structure of the conductive terminals 3 2 丄, 3 2 2 is substantially the same as the first and second conductive ends of the first tongue module 2 〇 2 2 1 , 2 2 2 , and the containing-contact portions 3212, 3222 should be soldered. Department 3 2 1 4, 3 2 2 4. The first two conductive terminals 32 1 and 322 of the second tongue and groove module 3 are assembled in substantially the same manner as the first and second conductive terminals 221 and 222 of the first tongue and keyboard module 20,

- . . . The contact portion 3 2 of the main body 3 1 and the contact portion 3 2 2 of the second conductive terminal 3 2 2 are also disposed, and the second conductive terminal is also disposed. 3 2 2 contact portion 3 2 2 2 position == Electrical terminal 3 2 1 contact portion 3 2 χ 2 front. And the first

The welded portions 3 2 1 4 and 3 2 2 4 of the terminals 3 2 1 and 3 2 2 are arranged in the sense and in the last two rows. 4疋壬月IJ子2 In the present embodiment, the number of the 2nd, 3 2 1 of the 'two tongue plate modules 2 〇, 3 各 is four, and the number of the second conductive p 3 2 2 is Five, in order to comply with the Universal Serial Bus (USB) 3.0 transmission specification, but not limited. Please refer to the third and fourth figures. The support frame 4 includes a base 4, a partition extending from the base 4 1 to the opening 1 〇 3 and extending in parallel with the two tongues 2 1 2, 3 1 2 4, two side walls 433 extending from the two sides of the base 4, and a accommodating space 47 defined by the two side walls 433. The outer surface of each of the side walls 433 is convexly provided with a fitting block 4 3 i, and the inner surface is respectively provided with a card slot 433. The metal housing 50 includes a wall 5 1 on the front side of the partition plate 4 2 of the support frame 4 , which is respectively bent and extended from the upper and lower sides of the front wall 5 1 and is disposed on the lower side of the plate 4 2 and the lower side. The two transverse walls 5 2 and the two grounding strips 5 3 respectively connected to the opposite sides of one of the transverse walls 5 2 ^ The rear ends of the two transverse walls 5 2 extend backwards and extend out the fixing feet 5 2 i, 5 2 2 ' and the upper and lower sides of the base 4 1 of the support frame 4 are respectively provided with fixing holes 4 1 2, 4 1 3 at positions corresponding to the fixed legs 5 2 丄 and 5 2 2 . Each of the grounding strips 5 3 has a fold-shaped portion 5 3 1 ' from which the transverse wall 5 2 is bent at a substantially right angle to the direction of the other transverse wall 5 2 - laterally along the curved portion 5 3 i ^ 5 2 The elastic portion 5 3 2 extending from the side, and the contact portion 5 3 3 are formed by the end portion f of the elastic portion 5 3 2 . In addition, the inner metal casing 5 can be further bent at the front end face of the front wall 5 to extend out of the other grounding piece 504, thereby contacting the other external components (not shown) to achieve the grounding effect. The specific structure of the outer metal casing 1 包含 includes a top wall 1 1 , a bottom wall 12 , and two side walls 3 connected to both sides of the top wall 1 丄 and the bottom wall 丄 2 . The opening 1 0 3 is composed of a top wall 1 1 , a bottom wall i 2 , and a front end of the two side walls 3 . The bottom wall 12 is joined by an adjacent two-plate 丄2丄 to form M377717, and the bottom wall 12 extends rearward from the joint 1 2 of the two-plate body 1 2 1 by a tab 14 . The two side walls 13 are oppositely disposed, and each side wall 丄3 is provided with a plurality of welding legs i 3 i extending from the bottom thereof and a fitting groove 133 extending to the rear end 102. In addition, the outer metal casing 1 further has two hooking pieces 5' respectively connected to the two side walls 13 and corresponding to the two bent portions 5 3 1 of the inner metal casing 5 ,, and the two hook pieces are in the position of 5 The partition 4 of the frame 40 is in front of each of the hook pieces 1 . . . 5 includes a front wall portion 1 5 1 which is bent from the front end of the side wall 1 3 toward the opening 1 〇 3, and a front wall portion 1 5 1 and extending to the side wall portion 1 5 2 of the inner side surface of the bent portion 5 3 1 of the inner metal casing 50. < Please continue to refer to the third and fourth figures and refer to the fifth figure. When the wall is assembled, the adjacent two tongue modules 3 〇 and 2 组装 are assembled on the support frame 40 and below respectively. The side is configured to form the insulative housing, and the base portion 41 of the support frame 4 is sandwiched between the bases 2 1 1 and 3 1 1 of the adjacent two tongue and groove modules 2 〇, 3 ' A partition plate 4 2 is interposed between the tongue plates 3 1 2 and 2 1 2 of the tongue plate module 3 〇 and 2 。. The fixing legs 5 2 1 and 5 2 2 are all inserted into the fixing holes 4丄2., 4 ..1 3, and the front wall 5 1 is disposed on the support frame 40. The front side of the plate 4 2 and the two horizontal walls 5 2 are respectively disposed on the lower side and the lower side of the partition plate 4 2 so that the inner metal casing 5 〇 is correspondingly disposed on the partition plate 42 of the support frame 40 . The outer metal casing 1 is sleeved outside the insulating casing (including the two tongue modules 20, 30, and the support frame 40) (that is, the insulating casing is housed in the outer metal casing) 1 〇)). The outer metal casing 1 is preferably spliced to the second splicing block 43 1 of the branch frame 40. The partition plate 4 of the support frame 40 separates the opening 丄〇3 of the outer metal casing 1 出 from the 177717 two-plug space 10 4 (please refer to the sixth figure), and the tongues of the two tongue groups 2〇, 30 The plates 212, 312 extend into the two rooms 104, respectively. At this time, the contact portions 5 3 3 of the two grounding pieces 53 of the inner metal casing 5 are respectively abutted against the inner side of the second (four) i 3 of the outer metal casing 以 to achieve the grounding effect. The front wall Μ 51 of each of the hooks i 5 of the outer metal casing i is stopped at the front side of the bent portion 5 3 i of the inner metal casing 5 ,, and the side wall portion 1 5 2 of the hook piece 15 is resisted. Connect the (4) metal M5 Q corresponding to the inside of the bent part 5 3 1 (please refer to the sixth and seventh figures); thereby, the creative electrical connector can be Xiang hook > { 1 5 front wall! 5 1 The bending portion 5 3 1 ' of the inner metal casing 50 is placed so that the inner metal casing 5 Q is not easily detached from the outer metal casing 10, and the side wall portion 1 5 2 of the hook #1 5 abuts The f-folded portion 5 3 1 ' of the metal casing 50 makes it difficult for the outer wall members 3 of the outer metal casing 丄Q to be deformed outwardly. In addition, the front end of the partition plate 4 of the support frame 40 can further extend forwardly from the opposite two protrusions 4 2 1 (please refer to the sixth and seventh figures), and the two protrusions 4 2 1 respectively extend into the outer metal shell. The two side walls i 3 of the crucible are between the side wall portions 1 5 2 of the two hook pieces 15 . Each of the bumps 4 2 1 is adjacent to the bent portion 53 1 corresponding to the inner metal shell 50, and the bumps 4 2 1 are spaced apart from the side wall portions 15 2 of the hook sheets 15 by a distance. Therefore, even under the influence of a strong external force, the bending of the side wall portion 152 of the hook piece 15 by the bent portion 531 of the inner metal casing 50 alone cannot prevent the side of the outer metal casing i 〇 The outer wall of the niche 3 can still be prevented from being blocked by the side wall portion 152 of the outer metal shell 1 by the protrusion 4 2 1 disposed adjacent to the bent portion 513. Zhang, thus forming a dual mechanism to prevent external sheets. πContinue to refer to the third and fourth figures. The present electrical connector further includes a fixed block 60, a rear cover 7〇, and a rear metal housing 8〇. Wherein, the positioning block 60 is made of an insulating material which forms a plurality of positioning holes 6 1 , 6 2 , 6 3 , 6 4 of the upper surface and the lower surface from front to back. Two sides of the positioning block 60 are respectively provided with a card slot 65 for the card slot 4 3 2 card • buckle. The positioning block 6 is further provided with a socket 6 8 extending in the front-rear direction and interposed by the insert 14 for the outer metal casing 1 . The rear cover 70 includes a base body 71, and a lower surface of the -72' base 71 connected to both sides of the base body 7 is recessed to form a plurality of positioning recesses 71 1 extending through the front and rear end faces of the base body 71. Each of the side walls 7.2 has a recessed recess formed by a recess extending to the rear end surface thereof. The side wall 1 3 f of the outer metal casing work is folded out - a cleat 丄 3 3 corresponding to the buckle groove 2 . The rear metal body 8 includes a rear wall 8 and two straight walls 8 2 which are bent forward from the sides of the rear wall 8. The outer surfaces of the straight walls 8 2 are bent out of the fastening piece 8 3 ' Each of the side beams 3 of the outer metal casing process is provided with a snap hole 134 for the snap Φ piece 8 3 corresponding to the buckle. • When assembling, the positioning block 60 can be snapped to the card slot 4 3 2 of the support frame 40 by the card body β 5, so that the positioning block 6 is assembled and fixed in the accommodating space from the lower side of the support frame 4 〇 4 7 is located behind the first tongue module 2 〇. At this time, the welded portions 2214, 2224, 3214, and 3224 of the respective conductive terminals 221, 2 2 2, 321, and 32 2 are respectively disposed to the positioning holes 6 1 , 6 2 , 6 3 , and 6 4 located in the positioning block 6 . The inserter 4 of the outer metal casing 1 插 is inserted into the insertion hole 6 8 of the positioning block 6 , so that the joint work 2 2 of the outer metal casing 1 不易 is not easily opened, and 11 strengthens the positioning block 6 0 drops. The cover 7 is assembled from the rear tongue and the ground to the rear of the second tongue module 3, and the first conductive terminal 32 is placed in the positioning groove 1 1 of the rear cover 70 to prevent the second conductive The terminal 3 2 2 is deformed or deformed < generated a short circuit. In addition, the buckle 3 3 of the outer metal casing work is correspondingly fastened to the buckle 72 i of the rear cover 7Q to prevent the outer metal casing 0 from coming forward. The rear metal body 80 is assembled to the outer metal casing 1 from the rear to the front, and the mouth P and the straight wall 8 2 are placed against the outer surface of the rear end of the two side walls 13, and the buckles 8 3 are correspondingly buckled. The snap hole 1 3 4 of the outer metal casing 1 共同 together provides a better electromagnetic interference prevention (EMI) effect. Please refer to the eighth embodiment to the second embodiment of the present invention. The same 7C member is still denoted by the same reference numeral as the first embodiment, and the difference between the second embodiment and the first embodiment. The electrical connector is a two-layer stacked sub-plate type (REVERSETYpE). In the drawings, for convenience of description, the outer casing 12 of the outer metal casing is facing upward (meaning and actual use). The direction is reversed ;) Display. The outer metal casing 1 〇 also has a front end 丄〇丄, a rear end working 2, an opening 10 3 , a plugging space 1 〇 4, a top wall 11 , a side wall 13 , and a welding leg 13 1 . , the fitting groove 132, the clasp 3 3 ', and the snap hole 1 3 4'. The insulating housing is composed of two adjacent tongue and groove modules 3 〇', 2〇', a support frame 4 介于 between a tongue module 30, 20, and a rear cover 70', and A positioning block (not shown) is formed. The two tongue and groove modules 2, 30, 30 each include a main body 21, 3, and a conductive terminal 22, 32. The main bodies 21' and 3'' have a base 211, 311, and tongue plates 12'', 312, respectively. The two tongue plate modules 2 ◦, 30, except for the types of the conductive terminals 221, 222, 321, 322 and the order of the assembly are slightly different, the rest are substantially the same, and therefore will not be described again. The support frame 40 also has a base portion 4, a partition plate 4 2 extending from the base portion 4 1 toward the opening 101, and a side wall 43 extending from the base portion 41 to the rear. The base portion 41 is sandwiched between the bases 2 1 1 and 3 1 1 of the adjacent two tongue and groove modules 20, 3, 3, and the adjacent two tongue and groove modules 3, 2 〇, the tongue 312, 2, 2:, between the separator 4 2,. The back cover γ 〇 includes a base body 711, a side wall 7 2', and a buckle groove 7 2 1,. In addition, the inner metal casing 50 has a front wall 151, a lateral wall 5.2, a grounding piece 531, a bent portion 531, an elastic portion 533, and a contact portion 533. . The front wall 513 is flattened by canceling the grounding piece 54 as in the first embodiment. The contact portions 53 3 of the two grounding pieces 53 of the inner metal casing 5 are respectively abutted on the inner side of the two side walls 13 of the outer metal casing 1 (please refer to FIG. 14) to achieve grounding. efficacy. The front wall portion 151' of each of the hook pieces 15 of the outer metal casing 10 is blocked from the bent portion 531 of the inner metal casing 50', the front side, and the side wall portion 15 of the hook piece 15, Abuts the inner metal casing 5〇, corresponding to the inside of the bent portion 5 3 1 ' (please refer to the thirteenth to fifteenth drawings). The rear metal casing 80' has a rear wall 8 Γ, a straight wall 82, and a snap piece (not shown), and can be similarly assembled to the rear end portions of the outer metal casings 1 Q and M377717. In addition, the front end of the partition 4 2 ' of the support frame 40 extends from the two projections 4 2 1 ' respectively into the side walls of the two side walls 2 3 of the outer metal casing 1 , ', and the two hook pieces 15 5 Department 1 5 2, between. Each of the bumps 4 2 1 is adjacent to the bent portion 531 of the inner metal shell 50', and the bump 1 is separated from the side wall portion 15 2 of the hook piece 15 Distance (please refer to Figure 12). Therefore, the original electrical connector of the present invention can block the bent portion of the inner metal casing by using the front wall portion of the hook piece of the outer metal casing, so that the inner metal casing is not easily detached from the outer metal casing, and the inner metal shell is The bent portion of the body abuts against the wall portion of the hook piece, so that the side wall of the outer metal case is not easily deformed by the outer sheet. In the implementation of the equivalent variation, the above configuration can also take into account the electrical connectors of the multi-layer stack to achieve the above objects and effects of the present invention. However, the above description is only a preferred and feasible embodiment of the present invention, and thus does not limit the scope of the creation, so that the creation of the manual and the changes in the content structure are all included in the scope of the creation. BRIEF DESCRIPTION OF THE DRAWINGS A three-dimensional combination diagram of a first embodiment of the present invention is shown. ^ 二图 is a further perspective three-dimensional combination of the first embodiment of the present invention. ^ The second picture is the first part of the creation - the implementation of the stereo decomposition map. = is another perspective exploded view of the first embodiment of the present invention. The sixth figure of the first embodiment of the present invention is a front view of the present invention, which is a front view of the yoke, wherein the partial hook on the right side is omitted for convenience of explanation. M377717 The seventh picture is an enlarged view of part A of the sixth picture. The eighth figure is an exploded perspective view of the second embodiment of the present creation. The ninth drawing is a perspective assembled view of the second embodiment of the present creation. The tenth figure is an enlarged view of the portion A of the ninth figure. The tenth-figure is a front view of the second embodiment of the present creation, in which the partial hook on the right side is omitted for convenience of explanation. '° The twelfth figure is the tenth - the enlarged view of the part of Figure A. The thirteenth drawing is another front view of the second embodiment of the present creation. Figure 14 is a cross-sectional view of the 14th to the 14th. The fifteenth figure is a cross-sectional view of the fifteenth figure from 1 5 to 15 5 .

15 M377717 [Description of main component symbols] 1 0, 1 0 ' Outer metal housing 1 0 1、1 Ο 前端 Front end 1 0 2, 1 0 2' Rear end 1 0 3, 1 0 3 ' Opening 1 0 4, 1 0 4' Docking space 1 1、1 顶 Top wall 1 2, 1 2' Bottom wall 12 1 Plate 1 2 2 Joint 1 3, 1 3' Side wall 1 3 1、1 3 Γ Soldering foot 1 3 2. 1 3 2' fitting groove 1 3 3, 1 3 3 ' clasp 134, 134' snap hole 14 insert 1 5 , 1 5' hook 1 5 1 , 1 5 Γ front wall 1 5 2, 1 5 2' Side wall part 2 0, 2 0' First tongue module 2 1-21'. Main body base tongue 2 1 1 , 2 1 1, 2 12^212' M377717 22 Conductive terminal 221 First conductive Terminal '2212 Contact portion 2214 Weld portion 222 Second conductive terminal 2222 Contact portion 2224 Weld portion 3 0, 3 0' Second tongue module

3 1 , 3 1 > Main body 3 1 1 , 3 1 1 , base 3 1 2, 3 1 2 > tongue plate 3 2 conductive terminal 3 2 1 first conductive terminal 3 2 1 2 contact portion 3 2 1 4 Welding portion 3 2 2 Second conductive terminal 3 2 2 2 Contact portion 3 2 2 4 Weld portion 4 0, Support frame 4 1 , 4 1 > Base portion 4 1 2 Fixing hole 4 1 3 Fixing hole 4 2, 4 2 9 Partition 17 M377717 4 2 1 Bump 4 3, 4 3' Side wall 431 Fitting block 4 3 2 Card slot 4 7 accommodating space 5 0, 5 0' Inner metal housing 5 1 , 5 Γ Front wall 5 2 ' 5 2' Transverse wall 521 Fixing foot 522 Fixing foot 5 3, 5 3' Grounding piece bending part Elastic part contact part 5 3 1,5 3 1, 5 3 2, 5 3 2, 5 3 3, 5 3 3 , 5 4 Grounding lug 6 0 Positioning block 6 1 Positioning hole 6 2 Positioning hole 6 3 Positioning hole 6 4 Positioning hole 6 5 Card body 6 8 Jack 7 0, 7 0, Back cover 18 M377717 7 1、71' Base 711 Positioning groove 7 2, 7 2 ' Side wall 7 2 1 , 7 2 1' Buckle 8 0, 8 0' Rear metal housing 8 1 , 8 1 ' Rear wall 8 2, 8 2' Straight wall 8 3 card Clasp 19

Claims (1)

M377717 t, the scope of application: 1. An electrical connector comprising: an outer metal housing having opposite front and rear ends, the outer metal housing having an opening formed at the front end; an insulative housing accommodating Mounted in the outer metal housing, the insulating housing has at least one partition extending toward the opening; a plurality of conductive terminals disposed on the insulating housing; and at least one inner metal housing correspondingly disposed In the partition, the inner metal casing includes a front wall disposed on a front side of the partition, two transverse walls extending from the upper and lower sides of the front wall, and disposed on the lower side of the partition, and a two-bend portion extending from the opposite sides of the transverse wall to the other transverse wall, the outer metal shell having opposite side walls and respectively connected to the two side walls and the inner side Two hook pieces corresponding to the two bent portions of the metal shell, the hook pieces include a front wall portion bent from the front end of the side wall toward the opening direction, and a front wall portion connected to the front wall portion and extending to the inner metal a side wall portion of the inner side of the bent portion of the casing, The front wall portion of the front side locking piece measures the bent portion of the inner metal case and side wall portion of the hook piece abutting the inside of the bent portion of the metal housing. 2. The electrical connector of claim 1, wherein one of the two opposite sides of the inner metal housing extends a grounding piece, the grounding piece includes the bent portion, and the The bent portion laterally extends along the lateral side of the lateral wall and a contact portion formed by bending the end of the elastic portion, and the contact portion of the inner metal casing abuts against the inner side of the side wall of the outer metal casing. The device of claim 2, wherein the front end of the partition plate is provided with two protrusions respectively extending between the two side walls of the outer metal shell and the side wall portions of the two hook pieces. The bump is adjacent to the bent portion of the inner metal casing, and the bump is spaced apart from the side wall portion of the hook piece by a distance of 0 4, as described in claim 1, 2 or 3 The electrical connector, wherein the insulating housing is provided with at least two tongue plates extending in the direction of the opening, and the partition plate is disposed between the adjacent two tongue plates. 5. The electrical connector of claim 1, wherein the second lateral end of the inner metal housing extends rearwardly from the fixed leg. The insulating housing is fixed in correspondence. The positions of the feet are respectively provided with fixing holes, and the fixing feet are inserted and fixed to the fixing holes. twenty one