TWM403790U - Electrical connector - Google Patents

Abstract

The invention is about a connector. The connector comprises a shell, a base, a PCB on the base and a capacitance. The base has a bottom wall facing the PCB. The bottom wall has a first side and a second side opposite to the first side. The capacitance has a main body and two ter-minals connecting with the main body. The PCB has a first face facing the first side and a second face opposite to the first side. The two ter-minals clamp the second side and the second face.

Description

V. New description: [New technical field] [0001] The present invention relates to an electrical connector, and in particular to a positioning structure of the electrical connector plug-in capacitor. [Prior Art] [0002] Taiwan Patent No. 149, 391, issued on July 1, 2007, discloses an electrical connector, which is provided with an insulative body and a two-piece type mounted on the rear side of the insulative body. a pedestal, a sub-board mounted on the bottom of the pedestal, a plug-in capacitor disposed on a side of the sub-board, a plurality of magnetic core packages housed in the pedestal, and a metal case, the plug-in capacitor being provided with a capacitor body and a connection In the first and second terminal pins of the capacitor body, the capacitor body is located between the base and the insulative housing, and the top wall of the insulative housing is provided with a groove. The housing is provided with a grounding elastic arm corresponding to the position of the groove, the first terminal leg portion is received in the groove and abuts against the grounding elastic arm to be grounded, and the first terminal leg is received in the groove and the part is bent and sleeved On the positioning post, the base and the sub-circuit board are provided with through holes, and the second terminal legs pass through the through holes in the base and are soldered to the through holes on the sub-circuit board. [0003] For the background art, the first terminal sleeve is disposed on the positioning post to better position the plug capacitor, but the electrical connector that uses other methods to position the plug capacitor is still required by the industry. [New Content] [0004] The technical problem to be solved by this creation is to provide an electrical connector with a well-positioned plug-in capacitor. Form No. A0101 Page 3 of 30 M403790 [0005] To solve the above technical problems, The author adopts the following technical solution: an electrical connector, which is provided with a metal casing, a base, a sub-circuit board disposed on the base, and a plug-in capacitor, and the base is provided with a bottom wall opposite to the sub-board, the bottom wall a first side and a second side opposite to the first side, the plug-in capacitor is provided with a capacitor body, first and second terminal pins connected to the capacitor body, and the sub-circuit board is provided with a bottom facing wall a first surface of one side and a second surface opposite to the first surface, the first terminal leg is electrically connected to the metal housing to be grounded, and the first terminal leg and the second terminal leg are clamped to the bottom wall The second side and the second side of the sub-board.

[0006] The first terminal leg and the second end hand are disposed on the second side of the bottom wall and the second side of the sub-board, and are moved from the position to the plug-in capacitor. The present invention will be further described in conjunction with the drawings and embodiments. [Embodiment] [0008] Please refer to the electrical connector 100 created by the first to fifth 丨 丨 丨 , , , , , , , 45 45 45 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; (not shown) is inserted into an external device (not shown), and the electrical connector 100 includes an insulative housing 11 and a base 12 mounted on the base of the insulative housing 11 and a terminal die disposed on the base 12 The group 13 , the plug-in capacitor 14 and the adapter terminal 15 , the light-emitting member 16 mounted on the insulative housing 11 , and the metal housing 17 covering the insulative housing 11 . As shown in the fourth to eleventh drawings, the insulative housing 11 is provided with a front wall 110, a rear wall 111 mountable to an external device, and a top wall extending rearward from the front wall 110. 112 and two side walls 113, and a comb portion 114 located between the front wall form number A0101, page 4/total 30 page 110, and the rear wall 111. The insulative housing 11 is further provided with a docking space 116 for the mating connector. The front wall 110, the top wall 112, and the two side walls 113 are adjacent to one side of the docking space 116, and are collectively arranged. Dock space 116. The front wall 11 is provided with a mating socket 1100 for insertion of a docking connector. One of the side walls 113 of the two side walls 113 is provided with a recessing space 1134 recessed from the outer side of the side wall 113, a partitioning plate 1135 located inside the retaining space 1134, and a receiving space 1131 communicating with the rear of the letting space 1134. A partition 1133 on the front side of the space 1131, a partition 1132 that is located inside the accommodating space 1131 and connected to the partition 133, and a hook 1130 that is fastened to the susceptor 12. The partition plate 1135 laterally separates the letting space 1134 from the docking space 116. The receiving space 1131 and the docking space 116 partially overlap in the mating connector insertion direction, and the partitioning portion 133 separates the receiving space 1131 from the docking space 116 in the mating connector insertion direction. The partitioning portion 1133 is in a plate shape perpendicular to the insertion direction of the mating connector, and the comb portion 114 and the partitioning portion 1133 are respectively provided with a front side surface (not labeled) facing the mating socket 11 and vertically mating the connector insertion direction. The front side surface of the comb portion 114 is coplanar with the front side surface of the partition portion 1133. The side wall 113 is perpendicular to the rear wall 111. The rear wall 111 is extended with a mounting leg 1110 mountable to an external device. The top wall 112 extends along the mating connector insertion direction, and the top wall 112 is provided with a mounting hole 112 收容 for receiving and holding the illuminating member 丨6 and a spacing portion 1128 located in the mounting hole 1120. The mounting hole π2 〇 penetrates the top wall On opposite sides of the 112, the spacer 1128 separates two end holes 1129 which are part of the mounting holes 112, and the spacers 1128 extend along the mating connector insertion direction to The end of the hole 1120 is mounted. The spacer portion n28 is provided with a v-shaped guide portion 115, a form number A0101, a fifth page, a total of 30 pages, a M403790, and the women's hole 1120 is provided with a first hole wall 21 and a second hole wall 1122 which are oppositely disposed. . The first hole wall 1121 is sequentially provided with a front portion 1123 along the insertion direction of the mating connector, a first portion 1124 connected to the front portion 1123 and extending obliquely toward the second hole wall 1122, and a second portion extending from the first portion 11 24 . A portion 1125, a third portion 1126 extending obliquely from the second portion n 25 toward the second hole wall 11 22, and a fourth portion 1127 extending from the third portion π 26 . The obliquely extending first portion 1124 and the third portion η26 can both guide the light emitting member 16 to be mounted to the mounting hole 1120. [0010] Referring to FIG. 2 to FIG. 6 , the terminal module 丨 3 is disposed on: the base 12 and parallel to the opposite connection _:|^本御轮电路板13 〇, the plurality of butt-connecting terminals 131 soldered to the front of the sub-board 13 are provided in the sub-electrode element! 32, and a plurality of sub-boards 130 are provided on the opposite side of the sub-board 130. The transfer terminal 15 is soldered to the sub-board 130 and can be mounted to an external device. The sub-board 13 is provided with a third surface 13 〇 5 opposite to the first surface 13 〇 4, and a 43 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 ··,+·*·' <> Λ "·· -» . . . / / a sub-board 13 〇 arranged in a row of the second side, the sub-board 130 is also provided with The mounting port 1 30 0, the opening 1301 on the left and right sides of the sub-board 130, the soldering piece 1303 on the second surface 135 of the sub-board 130, and the first surface 1304 and the second surface 1305 The second port 1302 is provided on the first surface 1304 of the front and rear rows of conductive sheets 1 306, 1307, a row of butt terminal holes 1308, which are located on the front side of the front row of conductive sheets 1306 and soldered to the mating terminals 131. The transfer terminal solder joint 1 309 is disposed on the rear side of the rear row of conductive sheets 1 307 and soldered to the transfer terminal 15. The front row of conductive sheets 1 306 is located on the front side of the magnetic element, 覃 0101, page 6 / page 30, and the rear row of conductive sheets 1 307 is located on the rear side of the magnetic element 132. The magnetic element 132 is soldered to the front and rear rows of conductive sheets 13〇6, 1307. In this embodiment, the magnetic component 132 is a magnetic core package having an enameled wire, and the enameled wire of the magnetic core package is soldered to the front and rear conductive sheets 1 306 and 1 307 to realize the magnetic core package and the front and rear conductive sheets 13 〇 6 , 1307 welding. Of course, the magnetic element 132 may be in other forms, such as a magnetic module provided with terminal pins. The terminal pins of the magnetic module are soldered to the front and rear rows of conductive sheets 1306, 1307. The second port 1302 and the adapter terminal soldering port 1 309 are located on the rear side of the rear row of conductive strips 1307, and the second port 1302 is located on the lateral side of the adapter terminal soldering port 1309, thereby enabling the second port 1302 The opening of the two-port 1302 does not affect the soldering of the magnetic element 132 and the rear row of conductive sheets 1307 while not affecting the setting of the adapter terminal soldering port 1309. The second port 1 302 is laterally aligned with the adapter terminal 1 309. [0011] Referring to the third to sixth figures, the susceptor 12 is disposed in the metal casing 17. The pedestal 12 includes a front end wall 12 对应 corresponding to the front wall 110, and is disposed corresponding to the rear wall 111. The rear end wall 121, the left and right end walls 123 corresponding to the two side walls 113, and the bottom wall 124 opposite to the sub-board 130. An accommodating space 125 for receiving the magnetic component 132 is disposed between the sub-circuit board 130 and the bottom wall 124. The accommodating space 125 is formed by the front end wall 120' rear end wall 121, the left and right end walls 123, and the bottom. The wall 124 is enclosed. The bottom wall 124 is provided with a first side (not labeled) and a second side (not labeled) opposite the first side. The first side 1304 of the sub-board 130 faces the first side of the bottom wall 124. On the side, the pedestal 12 is further provided with a first opening 126 extending in a direction perpendicular to the sub-board 130 to the second side of the bottom wall 124. The second opening 1302 corresponds to the position of the first opening 126. . Bottom wall 124 No. Form No. A0101 Page 7 of 30 M403790 The two sides are provided with a recessed area 1241 communicating with the first port 126. The front end wall 120 extends upwardly to form a plurality of mounting posts 12〇〇, the mounting posts 12〇〇 are located on the left and right sides of the base 12, and the mounting posts 12〇〇 are inserted into the mounting openings 1300 to hold the sub-circuit board 130 On the base 12. The rear end wall 121 can be mounted on the external device. The foregoing adapter terminal 15 is fixed on the rear end wall 121. The outer side of the rear end wall 121 is provided with two rows of downwardly extending holding slots 12, one of which is a holding slot. The depth of 1 21 0 is smaller than the other row, and the adapter terminal 15 is held by the two rows of holding slots 1210. A plurality of card slots 1230 are formed on the outer side of the left and right end walls 23, and the card slots 1230 are located on the left and right sides of the base 12. The card is enough for π god: wear and smother the '13〇1 buckled in the card slot 1230. The bottom wall 124 corresponds to the port 1240' so that the height of the core package is relatively high; the yield space for the core package avoids magnetization of the accommodation space 125. • m'J V* · [0012] Please refer to the fifth to ninth diagrams. The finished y is equipped with the illuminator 1 ?·'<<· »rt| 16 0 and connected to the illuminating The body 16 0 guides .3⁄43⁄4 conductive feet 1 61 extension

«u · ,. N ,1·-· · Extend the women's hole 1120 to be mounted on the outer & also in the present embodiment, • '' · ;' Λ The light-emitting member 16 is provided with at least two The conductive legs 161, however, are not particularly required for the number of the conductive legs 161. If necessary, the number of the conductive legs 161 of the light-emitting member 丨6 may be other values. The illuminator 16 is disposed on the front side of the electrical connector 100 for indicating the operating state of the electrical connector 1 。. The spacers 112 8 are located in the mounting hole π 2 0 , and the spacers 112 8 are separated by two end holes 1129 for accommodating the two conductive legs 161 . When the light emitting member 16 is inserted into the mounting hole 1120 , the The spacer 1128 can stop the illuminant 160 to control the insertion depth of the illuminating member 16, and ensure the accuracy of the mounting position of the illuminating device form 煸 Α 0101 8th / 30th. The V-shaped guide portion 150 is located between the two conductive legs 161, and the tip end of the V-shaped guide portion 115 0 faces the illuminator 16 〇 to guide the conductive leg 161 into the mounting hole 1120. The conductive leg 161 is provided with a first abutting portion 1610 that abuts against the first hole wall 1121 , a second abutting portion 1612 that abuts against the second hole wall 1122 , and connects the first abutting portion 1610 and the second abutting portion The connecting portion 1611 of the connecting portion 1612 and the third abutting portion 1613 abutting the first hole wall 1121. The first abutting portion 1610 is connected between the second abutting portion 1611 and the illuminating body 160, and the second abutting portion 1611 is connected between the first abutting portion 1610 and the third abutting portion 161 3 . The first abutting portion 1610 abuts against the second portion 1125, and the third abutting portion 1613 abuts the fourth portion 1127. The second abutting portion 1611 is parallel to the second hole wall 1122, and the third abutting portion 1613 is parallel to the fourth portion 1127. The two parallel structures are designed to increase the abutment between the two abutting portions. The area of the first abutting portion 1610 is disposed in the illuminant 160, and the connecting portion 1611 is opposite to the second end of the first abutting portion 1610. The hole wall H22 is bent and extended. The second abutting portion 161 2 continues to extend from the connecting portion 1611. The third abutting portion 1613 is slightly upturned to abut against the second hole wall U21. [0013] Referring to FIG. 4 to FIG. 6 and FIG. 11 , the plug-in capacitor 14 is provided with a flat capacitor body 14 and first and second terminal pins connected to the capacitor body 14 . 141, 142. The capacitor body 140 is housed in the receiving space 1131 of the side wall 113. The partition plate 1132 is located inside the accommodating space 1131 to separate the capacitor body 丨4〇 from the inside of the insulating body η to improve the electrical isolation performance between the capacitor body 140 and the device inside the insulating body π, and is convenient to form a relatively independent one. Containing space 11 31. Form No. 1010101 Page 9 of 30 M403790 The sub-board 130 is located between the bottom wall 124 and the capacitor body 140, and the capacitor 14 is placed across the electronic module 133. The first terminal leg 141 and the second terminal leg 142 are disposed on the second side of the bottom wall 124 and the second surface 1305 of the sub-board 130 to function as a positioning function of the plug-in capacitor 14. The portion of the second terminal leg 142 soldered to the second surface 1305 of the sub-board 130 is received in the yield space 1134. Thus, the arrangement of other components disposed on the second surface 1 305 of the sub-board 130 can be avoided. welding. The first terminal leg 141 is electrically connected to the metal housing 17 to be grounded. In the embodiment, the first terminal leg 141 is partially received in the second port 1302, and the first terminal leg 141 includes a connecting portion 1412 and a first port 126 1241f folded and f妾The portion 1412 of the connecting portion 1412 and the connecting portion 1410 and the bent positioning portion 1410 of the self-positioning portion of the recessed portion 1241 and the capacitor body 1412 form a bend at the second port 1302. The positioning portion 1410 is perpendicular to the sub-board 130, and the bent portion 1411 is flat on the sub-board 130.

Redua! [0014] For the present embodiment, due to the sub-circuit, the plate side 1304 is provided with more solder joints and components. The second terminal leg 142 is surface-welded to the second surface 1305 of the sub-circuit board 130. The soldering of the second terminal leg 142 to the sub-board 130 does not affect the solder joints and the arrangement of the components provided on the first surface 1 304 of the sub-board 13A. The first port 126 is disposed on the rear wall 124 and located on a lateral side of the adapter terminal 15 . The second port 1302 corresponds to the position of the first port 126. The position is close to the rear corner of the sub-board 130, so that the opening of the second port 13 〇2 does not affect the arrangement of the pads and components on the sub-board 130. In the present embodiment, the first port 126 of the form number A0101 is set to be a through groove provided at one end of the rear wall 124, so that it is advantageous to ensure that there is a gap between the adapter terminal 15 and the positioning portion 1410. Sufficient separation distance 'Of course, the first port 126 can also be provided as a through hole. The second port 1302 is laterally aligned with the row of adapter terminal pads 1309. The second port 1 302 is disposed as a through slot disposed at the side of the side of the sub-board 13 . Therefore, it is advantageous to ensure a sufficient separation distance between the second port 1302 and the adapter terminal 1309. Of course, the second port 13 The first terminal pin 141 is first inserted into the second port 1 302 and the first port 126', and then bent to form a bent portion HI1, and then welded to the second terminal 141. The terminal pin 142 ' however, the second port 1302 and the first port 126 are both provided with a through groove. The first terminal leg 141 can be laterally mounted, for example, the first terminal leg 141 can be bent into a predetermined shape and then re-side. The mounting is performed on the second port 1302, the first port 126, and the recessed area 1241. Referring to the first to sixth figures, the metal casing 17 is provided with a casing side wall i 70 disposed corresponding to the two side walls 113 and a casing bottom wall 171 corresponding to the bottom wall ία. The shell sidewall 170 is shielded from the outside of the receiving space 1131 to isolate the plug-in capacitor 14 from the outside of the shell sidewall 170. The bottom wall 171 of the casing is provided with a grounding elastic arm 1710 that abuts against the bent portion 1411. [0016] In summary, the creation has indeed met the requirements of the new patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those who are familiar with the skill of the present invention are equivalent to the equivalent modifications or changes made by the spirit of the present creation. It should be within the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0017] The first figure is a perspective view of the present electrical connector. Form No. A0101 Page 1 of 30 M403790 [0018] The second figure is a perspective view of another angle of the present electrical connector. [0019] The third figure is a perspective view of the present electrical connector after the metal housing is removed. [0020] The fourth figure is a perspective view of another angle of the present electrical connector after the metal housing is removed. [0021] The fifth figure is an exploded view of the present electrical connector. [0022] The sixth figure is an exploded view of another angle of the present electrical connector. [0023] The seventh figure is a front view of the insulative body of the present electrical connector. [0024] The eighth figure is a perspective view of the insulative housing of the present electrical connector. [0027] [0027]

The ninth figure is along the IX-IX in the first figure. The tenth figure in the seventh figure is along the XI^ in the seventh figure. The section along the XI-XI line in the first figure is [0028] [Explanation of main component symbols] Electrical connector 100 [0029] Insulating body 11 [0030] Front wall 11 0 [0031] Docking socket 1100 [0032] Rear wall 111 [0033] Mounting foot 111 0 [0034] Top wall 11 2 [0035] Mounting hole 1120 Form No. A0101 Page 12 of 30 M403790

First hole wall 1121 [0037] second hole wall 1122 [0038] front portion 1123 [0039] first portion 1124 [0040] second portion 1125 [0041] third portion 1126 [0042] fourth portion 1127 [ 0043] Spacer 1128 [0044] Terminal hole 1129 [0045] Two side walls 113 [0046] Hook 1130 [0047] Containing space 1131 [0048] Partition 1132 [0049] Part 1133 [0050] Letting space 1134 [ 0051] Partition 113 5 [0052] Comb 114 [0053] V-shaped guide 1150 [0054] Docking space 116 Form No. A0101 Page 13 of 30 M403790 [0055] Base 12 [0056] Front end Wall 120 [0057] mounting post 1200 [0058] rear end wall 121 [0059] retaining groove 1210 [0060] left and right end walls 123 [0061] card slot 1230 [0062] bottom wall 124 [0063] port 1240 [0064] Recessed area 1241 [0065] accommodating space 125 [0066] first port 126 [0067] terminal module 13 [0068] sub-board 130 [0069] mounting port 1300 [0070] slot 1301 [0071] second pass Port 1302 [0072] soldering piece 1303 [0073] first side 1304

Form No. A0101 Page 14 of 30 M403790 [0074] [0075] [0079] [0079] [0080]

[0084] [0084] [0084] [0086]

[0088] [0092] [0092] Second side 1 305 Front row of conductive sheets 1306 Rear row of conductive sheets 1307 Butt terminal holes 1308 Adapter terminal Welds 1309 Butt terminals 131 Magnetic elements 132 Electronics Module 133 Plug-in Capacitor 14 Capacitor Body 140 First Terminal Leg 141 Positioning Portion 1410 Bending Portion 1411 Connecting Portion 1412 Second Terminal Leg 142 Adapter Terminal 15 Light Emitting Element 16 Luminous Body 160 Conducting Foot 161 Form No. A0101 Page 15 of 30 Page M403790 [0093] First abutting portion 1610 [0094] Connecting portion 1611 [0095] Metal abutting portion 1612 [0096] Shell side wall 170 [0098] Shell bottom wall 171 [0099] Grounding Slug arm 1710 Form number A0101

Page 16 of 30

Claims (1)

M403790 VI. Patent Application Range 1. An electrical connector comprising: a metal housing; a base disposed in the metal housing, the base having a bottom wall, the bottom wall being provided with the first side and the first side a second side opposite to the bottom; a sub-circuit board disposed on the base, the sub-circuit board is opposite to the bottom wall, and the sub-board is provided with a first side facing the first side of the bottom wall and a second side opposite to the first side And a plug-in capacitor, the plug-in capacitor is provided with a capacitor body, and first and second terminal pins connected to the capacitor body; wherein the first terminal leg and the second terminal leg are sandwiched on the second side of the bottom wall The second side of the board. 2. The electrical connector of claim 1, wherein the sub-board is located between the bottom wall and the capacitor body, and the base is provided to extend through the sub-board in a direction perpendicular to the sub-board. a first port on the two sides, a second side of the bottom wall is provided with a recessed area communicating with the first port, the second terminal foot surface is soldered to the second side of the sub-board, the first terminal The foot is electrically connected to the metal housing to be grounded, and the first terminal leg includes a positioning portion positioned at the first opening and a bending portion 弯3 that is bent from the positioning portion toward the recessed area and disposed on the recessed area. The electrical connector of claim 2, wherein the sub-circuit board is provided with a second port that penetrates the first surface and the second surface, and the second port corresponds to the position of the first port. The first terminal leg portion is received in the second port. 4. The electrical connector of claim 3, wherein the electrical connection 099219538 Form No. A0101 Page 17 of 30 0992060365-0 M403790 can be installed in the direction in which the mating connector is inserted into the electrical connector An external device, the sub-board is parallel to the direction in which the mating connector is inserted into the electrical connector, and the electrical connector is further provided with an insulative housing, a magnetic component between the sub-board and the bottom wall, and a plurality of interfaces that can be mated with the mating connector The insulative housing is provided with a front wall, a top wall and two side walls extending from the front wall, and the front wall is provided with a mating plug D for inserting the mating connector, and the base includes a front wall corresponding to the front wall a front end wall, a rear end wall, and left and right end walls corresponding to the two side walls, wherein the front end wall, the rear end wall, the left 'right end wall and the bottom wall are enclosed to accommodate the accommodating space of the magnetic component, The rear end wall has a plurality of splicing terminals mountable to the external device, and the pair: the terminal and the transfer terminal are soldered to the sub-electricity---_V is a lateral direction of the y ^ ^ ^ if side. As described in item 4 of the patent application scope, the first port is a through groove provided at one end of the rear wall of the rear wall. The electrical connector of claim 4, wherein the first port is a negative electrode disposed at the end of the sub-board, as described in claim 4 of the patent application. The middle side wall of the two side walls is provided with a secret space outside the side wall of the side wall, a receiving space connecting the rear part of the two space space, and a capacitor main body in the letting space is accommodated in the receiving space, the partition=empty: A portion that is laterally spaced apart from the docking space and that is soldered to the second surface of the sub-board is received in the yield space. 8 The electrical connector of claim 3, wherein the first terminal further comprises a connecting positioning portion and a capacitor main (four) connecting portion positioning portion and the connecting portion forming a fold at the first opening. 099219538 The electrical connection as described in claim 3, and the form number A0101, page 18 of 30, wherein the electrical connection 0992060365-0 M403790 ► 10 is also provided with a plurality of interfaces that can be docked with the docking connector. a docking terminal and a plurality of adapter terminals mountable to the external device, the docking terminal and the adapter terminal being soldered to the sub-board, the electrical connector further comprising a magnetic component between the sub-board and the bottom wall, The first surface of the sub-board is provided with a front row of conductive sheets on the front side of the magnetic element and a rear row of conductive sheets on the back side of the magnetic element, the magnetic element being a core wire package with an enameled wire, the enameled wire of the magnetic core wire package being soldered In the front and rear rows of conductive sheets, the sub-circuit board is provided with a row of adapter terminal soldering joints welded to the adapter terminals, and the adapter terminal soldering port and the second port are located behind the rear row of conductive sheets On the side, the second port is located on a lateral side of the welding terminal of the adapter terminal. The electrical connector of claim 2, wherein the metal casing is provided with a bottom wall corresponding to the bottom wall, and the bottom wall of the casing is provided with a grounding elastic arm abutting the bent portion. 099219538 Form No. A0101 Page 19 of 30 0992060365-0