JP4289606B2 - connector - Google Patents

Description

  The present invention relates to a connector having a shield structure.

  Conventionally, an electrical connector assembly including a plug connector and a receptacle connector is known (see Patent Document 1 below).

  The plug connector includes an insulating housing, a plurality of terminals attached to the insulating housing, and a metal shield that covers the outer wall of the fitting portion of the insulating housing.

  On the inner wall of the fitting portion of the insulating housing, recessed grooves are formed at a predetermined pitch along the longitudinal direction of the insulating housing.

  There is a contact part at one end of the terminal and a solder tail part at the other end. The contact part of the terminal faces the recessed groove.

  The shield has a side wall and an end wall, and an extension lead is formed by extending a part of one end edge of the side wall. The extension lead extends beyond the tip of the fitting portion of the insulating housing into the fitting portion, fits into the recessed groove, and engages with the terminal of the receptacle connector.

  The receptacle connector includes an elongated insulating housing formed so as to be matable with the insulating housing of the plug connector, a terminal attached to the insulating housing, and a metal shield disposed outside the insulating housing. .

  In the fitting portion of the insulating housing, recessed grooves are formed at a predetermined pitch along the longitudinal direction of the insulating housing.

  There is a contact part at one end of the terminal and a solder tail part at the other end. The contact portion of this terminal faces the recessed groove and can be engaged with the contact portion of the terminal of the plug connector.

Similar to the shield of the plug connector, the shield has side walls and end walls. A fitting groove is formed between the side wall and the end wall and the insulating housing. In addition, an engagement piece is formed on the side wall and the end wall by a U-shaped groove, and the engagement piece elastically engages the side wall and the end wall of the shield of the plug connector so that both shields are electrically connected. Connected.
Japanese Patent Laid-Open No. 9-237655 (see paragraphs 0011 to 0015 and FIG. 1)

  As described above, in the conventional connector, in order to obtain a sufficient shielding effect, both the plug connector and the receptacle connector are provided with shields.

  For this reason, there are problems that the number of parts of the connector is large, it takes time to assemble, and the manufacturing cost increases.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a connector that can obtain a sufficient shielding effect with either one of the shield structures on the plug side and the receptacle side.

In order to solve the above-described problem, a connector according to the first aspect of the present invention is an insulator having a side wall that forms a receiving space for receiving an insertion portion of a mating connector, and is held by the insulator and is connected to a signal contact of the mating connector. In the connector comprising the contact signal contact and the shield member held by the insulator, the shield member is connected to a shield plate portion provided to cover the outer surface of the side wall, and one end of the shield plate portion. A first extension that contacts the shield contact of the mating connector, and a second extension that is connected to the other end of the shield plate portion and corresponds to the first extension, said second extension portion or the shield plate portion, forming a loop that surrounds a longitudinal section of the side wall So that the are electrically connected while being bonded, the insulator the shield member is disposed in a mold during molding of the insulator is characterized in that it is molded.

Since the first extension portion as described above and a second extension or shield plate portion is joined, the path flowing a high frequency current generated in the sheet Rudo member to ground is two forms.

  According to a second aspect of the present invention, in the connector according to the first aspect, the pair of signal contacts are disposed so as to be sandwiched between the first extension portions.

  Since the pair of signal contacts are arranged so as to be sandwiched between the first extension portions as described above, the high-frequency current generated in the pair of signal contacts is passed to the ground through the first extension portions.

According to the connector of the invention of claim 1 as described above, since the path for flowing a high-frequency current generated in the sheet Rudo member to the ground are formed two For example, the conventional shielding effect shielded-member Than can be strengthened. As a result, the number of parts can be reduced and the manufacturing cost can be reduced.

  According to the connector of the second aspect of the present invention, since the high-frequency current generated in the pair of signal contacts is caused to flow to the ground through the first extension portion, crosstalk between the adjacent pair of signal contacts can be more reliably prevented. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a receptacle connector according to a first embodiment of the present invention, FIG. 2 shows the receptacle connector shown in FIG. 1, FIG. 1 (a) is a front view, FIG. 1 (b) is a plan view, and FIG. (C) is a side view, FIG. 3 is a sectional view taken along line III-III in FIG. 2, FIG. 4 is a sectional view taken along line IV-IV in FIG. 2, and FIG. 5 shows signal contacts of the connector shown in FIG. (A) is a front view, (b) is a plan view, (c) is a bottom view, (d) is a side view, and FIG. 6 is a high-frequency shield member of the receptacle connector shown in FIG. (A) is a front view, (b) is a plan view, (c) is a bottom view, and (d) is a cross-sectional view taken along line DD of FIG. (A). It is.

  As shown in FIG. 1, the receptacle connector 11 includes one insulator 13, a plurality of signal contacts 15, and two high-frequency shield members 17.

  As shown in FIGS. 2 to 4, the insulator 13 is formed of an insulating material and has a casing shape with an open top surface, and includes a bottom plate 131 and side walls 132, 132, 133, and 133. The side walls 132, 132, 133, and 133 form a receiving space 134 that receives an insertion portion 232 of the plug connector 21 described later.

On both sides of the bottom plate 13 1 a plurality of retaining grooves 131a and the hole 131b are formed. The holding groove 131a communicates with the hole 131b. The holding grooves 131a and the holes 131b are adjacent to each other in a pair, and the pair of holding grooves 131a and the holes 131b are arranged at equal intervals.

  A plurality of holding grooves 132 a are formed on the inner surface of the side wall 132. The holding groove 132a communicates with the hole 131b.

  As shown in FIGS. 3 and 5, the signal contact 15 is formed by punching and bending a metal plate and then plating. The signal contact 15 includes a contact part 151, a holding part 152, and a terminal part 153. The contact portion 151 is passed through the hole 131b and is held in the holding groove 132a. The holding part 152 continues to the contact part 151 and is held in the holding groove 131a. The terminal portion 153 has a crank shape, continues to the holding portion 152, and protrudes from the bottom plate 131. The terminal portion 153 is soldered to a conductor pattern (signal line) of a first printed board (not shown).

  As shown in FIGS. 4 and 6, the two high-frequency shield members 17 and 17 have the same shape. The high-frequency shield member 17 is formed by punching and bending a metal plate, and then plating. The two high-frequency shield members 17, 17 are arranged in the mold when the insulator 13 is molded, and are fixed to a predetermined portion of the insulator 13 together with the molding of the insulator 13.

  The high-frequency shield member 17 includes a shield plate portion 171, a first extension portion 172, and a second extension portion 173.

  The shield plate portion 171 covers the outer surfaces of the side walls 132 and 133.

  The first extension portion 172 is connected to one end of the shield plate portion 171. The first extension 172 includes a connecting portion 172a, a shield contact portion 172b, a buried portion 172c, and a terminal portion 172d. The connecting portion 172a connects the shield plate portion 171 and the shield contact portion 172b, and is wound around the distal end portion of the side wall 132. The shield contact portion 172b is disposed on the inner surface of the side wall 132 and contacts a shield contact 25 ′ described later. The embedded portion 172c is connected to the shield contact portion 172b and embedded in the bottom plate 131. The terminal portion 172d has a crank shape, continues to the embedded portion 172c, and protrudes from the insulator 13. The terminal portion 172d is soldered to the conductor pattern (ground line) of the first printed board.

  The second extension part 173 continues to the other end of the shield plate part 171. The second extension portion 173 extends in parallel with the terminal portion 172d and contacts the terminal portion 172d. Further, the second extension portion 173 is electrically connected to the terminal portion 172d by plating.

  7 is a perspective view of a plug connector which is a mating connector of the receptacle connector shown in FIG. 1, FIG. 8 is an insulator of the plug connector shown in FIG. 7, FIG. 7 (a) is a front view, and FIG. FIG. 9 is a side view, FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 8, FIG. 10 shows the signal contact of the plug connector shown in FIG. 7, and FIG. FIG. 4B is a plan view, and FIG. 4C is a side view.

  Next, a plug connector which is a mating connector of the receptacle connector of the first embodiment will be described.

  As shown in FIG. 7, the plug connector 21 includes one insulator 23, a plurality of signal contacts 25, and a plurality of shield contacts 25 ′.

  As shown in FIGS. 8 and 9, the insulator 23 is made of an insulating material and has a bottom plate 231 and an insertion portion 232.

  A plurality of press-fitting grooves 231 a are formed in the bottom plate 231. The plurality of press-fitting grooves 231a are arranged at a predetermined pitch so as to correspond to the signal contact 15 and the shield contact portion 172b.

  The insertion part 232 is formed on the upper surface of the bottom plate 231. The insertion portion 232 is formed with a plurality of receiving grooves 232a corresponding to the plurality of press-fitting grooves 231a. The accommodation groove 232a communicates with the press-fitting groove 231a.

  As shown in FIG. 10, the signal contact 25 is formed by punching and bending a metal plate, and then plating. The signal contact 25 includes a contact portion 251, a press-fit portion 252, and a terminal portion 253. The contact portion 251 is accommodated in the accommodation groove 232a so as to be movable in the depth direction a (see FIG. 9) of the insulator 23. The press-fit portion 252 is connected to the contact portion 251 and is press-fit into the press-fit groove 231a. The terminal portion 253 has a crank shape, continues to the press-fit portion 252, and protrudes from the bottom plate 231. The terminal portion 253 is soldered to a conductor pattern (signal line) of a second printed board (not shown).

  The shield contact 25 'and the signal contact 25 have the same material, shape and size. The signal contact 25 or the shield contact 25 ′ is distinguished depending on the position where it is arranged on the insulator 23. The shield contact 25 ′ also has a contact portion 251 ′, a press-fit portion 252 ′, and a terminal portion 253 ′. The terminal portion 253 ′ is soldered to the conductor pattern (ground line) of the second printed board.

  11 shows a state before the receptacle connector shown in FIG. 1 and the plug connector shown in FIG. 7 are fitted together. FIG. 12 is a cross-sectional view of the same portion as FIG. 3, and FIG. 12 shows the receptacle connector and the plug connector shown in FIG. FIG. 13 is a cross-sectional view of the same part as in FIG. 4, and FIG. 13 is a cross-sectional view of the same part as in FIG. 11, showing the state after the receptacle connector and the plug connector shown in FIG. 14 shows a state after the receptacle connector and the plug connector shown in FIG. 12 are fitted, and is a cross-sectional view of the same portion as FIG.

  Next, connection work between the receptacle connector 11 and the plug connector 21 will be described.

  First, as shown in FIGS. 11 and 12, the receptacle connector 11 is disposed above the plug connector 21.

  Next, the receptacle connector 11 is lowered and fitted into the plug connector 21 as shown in FIGS. As a result, the contact portion 251 elastically contacts the contact portion 151, and the signal contact 15 and the signal contact 25 are conducted. Further, the contact portion 251 ′ elastically contacts the shield contact portion 172b, and the high frequency shield member 17 and the shield contact 25 ′ are electrically connected. As a result, the first printed circuit board and the second printed circuit board are electrically connected by the receptacle connector 11 and the plug connector 21. At this time, the high frequency current generated in the receptacle connector 11 and the plug connector 21 and noise outside the connector are passed through the ground line through the high frequency shield member 17. For example, the path through which the high-frequency current generated in the high-frequency shield member 17 flows to the ground line is the path from the shield plate part 171 through the first extension part 172 and the terminal part 172d from the shield plate part 171 through the second extension part 173. And a route that passes through. A high-frequency current or the like is efficiently passed through the ground line through the shortest path.

  As described above, according to the receptacle connector 11 of this embodiment, a sufficient shielding effect can be obtained with only the high-frequency shield member 17 of the receptacle connector 11. As a result, the number of parts of the plug connector 21 can be reduced, and the manufacturing cost can be reduced.

  In addition, since the shield contact portions 172b are disposed on both sides of the pair of single contacts 15 and the shield contacts 25 'are disposed on both sides of the pair of signal contacts 25, crosstalk can be more reliably prevented. .

  In the first embodiment, the terminal part 172d and the second extension part 173 are electrically connected by plating, but the terminal part 172d and the second extension part 173 may be soldered, or the terminal part The high frequency shield member 17 may be molded into the insulator 13 in a state where the 172d and the second extension portion 173 are in contact with each other, and the contact state between the terminal portion 172d and the second extension portion 173 may be maintained.

  FIG. 15 shows a state before the receptacle connector according to the second embodiment and the plug connector which is the mating connector are fitted to each other, and is a cross-sectional view of the same portion as FIG. 12, and FIG. 16 is the receptacle connector shown in FIG. FIG. 16 is a cross-sectional view of the same portion as FIG. 15, showing a state after the plug connector and the plug connector are fitted together.

  Since the second embodiment has substantially the same configuration as that of the first embodiment, the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the description thereof will be omitted. Only the components having different configurations will be described.

  In the receptacle connector 11 of the first embodiment, the second extension portion 173 of the high-frequency shield member 17 is bent toward the outside of the insulator 13 and connected to the terminal portion 172d. However, in the receptacle connector 311 of the second embodiment, As shown in FIG. 15, the second extension 373 of the high-frequency shield member 317 is bent toward the inner side of the insulator 13 and connected to the embedded portion 172c. Accordingly, as shown in FIG. 16, the path through which the high-frequency current flows through the ground line is the path from the shield plate part 171 to the first extension part 172, the shield plate part 171 to the second extension part 373, and the embedded part 172c. There are two routes through the terminal portion 172d via

  The receptacle connector 311 has the same effects as the receptacle connector 11.

  Further, since the second extension portion 373 is bent toward the inside of the insulator 13, a connection allowance is provided in the terminal portion 172d in order to connect the second extension portion 173 to the terminal portion 172d as in the first embodiment. This is unnecessary, and the mounting area can be made smaller than that in the first embodiment.

  Since the plug connector 21 shown in FIGS. 15 to 20 is the same as that shown in FIG.

  FIG. 17 shows a state before the receptacle connector according to the third embodiment and the plug connector which is the mating connector thereof are fitted, a cross-sectional view of the same portion as FIG. 12, and FIG. 18 shows the receptacle connector shown in FIG. FIG. 18 is a cross-sectional view of the same portion as FIG. 17, showing a state after the plug connector and the plug connector are fitted together.

  Since the third embodiment has substantially the same configuration as that of the first embodiment, the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the description thereof will be omitted. Only the components having different configurations will be described.

  In the receptacle connector 11 of the first embodiment, the first extension 172 of the high-frequency shield member 17 has a terminal portion 172d. However, in the receptacle connector 411 of the third embodiment, as shown in FIG. A second extension portion 473 of 417 forms a terminal portion. The distal end portion of the first extension portion 472 constitutes a connection portion 472e and is connected to the second extension portion (terminal portion) 473. Therefore, as shown in FIG. 18, the path through which the high-frequency current or the like flows is the path from the shield plate part 171 through the second extension part 473 via the first extension part 472 and the second path from the shield plate part 171 to the second line. There are two paths through the extension 473.

  The receptacle connector 411 has the same effects as the receptacle connectors 11 and 311.

  FIG. 19 shows a state before the receptacle connector according to the fourth embodiment and the plug connector which is the mating connector are fitted to each other. FIG. 19 is a cross-sectional view of the same portion as FIG. FIG. 20 is a cross-sectional view of the same portion as FIG.

  Since the fourth embodiment has substantially the same configuration as that of the third embodiment, portions having the same configuration are denoted by the same reference numerals as those of the third embodiment, description thereof is omitted, and only portions having different configurations are described.

  In the receptacle connector 411 of the third embodiment, the connection part 472e of the first extension part 472 of the high-frequency shield member 417 is connected to the second extension part 473. However, in the receptacle connector 511 of the fourth embodiment, the high-frequency shield member 517. The connection portion 572 e of the first extension portion 572 is connected to the other end of the shield plate portion 171. Therefore, a path for passing a high-frequency current or the like through the ground line passes from the shield plate portion 171 to the second extension portion 473 via the first extension portion 472 and the other end of the shield plate portion 171 as shown in FIG. There are two routes: a route and a route passing from the shield plate portion 171 to the second extension portion 473.

  The receptacle connector 511 has the same effects as the receptacle connectors 11 and 311.

FIG. 1 is a perspective view of a receptacle connector according to a first embodiment of the present invention. 2 shows the receptacle connector shown in FIG. 1, wherein FIG. 2A is a front view, FIG. 2B is a plan view, and FIG. 2C is a side view. FIG. 3 is a sectional view taken along line III-III in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 shows signal contacts of the connector shown in FIG. 1, wherein FIG. 5A is a front view, FIG. 5B is a plan view, FIG. 10C is a bottom view, and FIG. is there. 6 shows the high-frequency shield member of the receptacle connector shown in FIG. 1, wherein FIG. 6A is a front view, FIG. 6B is a plan view, FIG. 10C is a bottom view, and FIG. It is sectional drawing which follows the DD line | wire of figure (a). 7 is a perspective view of a plug connector which is a mating connector of the receptacle connector shown in FIG. 8 shows the insulator of the plug connector shown in FIG. 7, wherein FIG. 8A is a front view, FIG. 8B is a plan view, and FIG. 8C is a side view. FIG. 9 is a sectional view taken along the line IX-IX in FIG. 10A and 10B show signal contacts of the plug connector shown in FIG. 7, wherein FIG. 10A is a front view, FIG. 10B is a plan view, and FIG. 10C is a side view. 11 shows a state before the receptacle connector shown in FIG. 1 and the plug connector shown in FIG. 7 are fitted together, and is a cross-sectional view of the same portion as FIG. 12 shows a state before the receptacle connector and the plug connector shown in FIG. 11 are fitted together, and is a cross-sectional view of the same portion as FIG. 13 shows a state after the receptacle connector and the plug connector shown in FIG. 11 are fitted, and is a cross-sectional view of the same portion as FIG. 14 shows a state after the receptacle connector and the plug connector shown in FIG. 12 are fitted, and is a cross-sectional view of the same portion as FIG. FIG. 15 shows a state before the receptacle connector according to the second embodiment and the plug connector which is the mating connector are fitted, and is a cross-sectional view of the same portion as FIG. 16 shows a state after the receptacle connector and the plug connector shown in FIG. 15 are fitted, and is a cross-sectional view of the same portion as FIG. FIG. 17 shows a state before the receptacle connector according to the third embodiment and the plug connector which is the mating connector are fitted, and is a cross-sectional view of the same portion as FIG. 18 shows a state after the receptacle connector and the plug connector shown in FIG. 17 are fitted, and is a cross-sectional view of the same portion as FIG. FIG. 19 shows a state before the receptacle connector according to the fourth embodiment and the plug connector which is the mating connector are fitted, and is a cross-sectional view of the same portion as FIG. 20 shows a state after the receptacle connector and the plug connector shown in FIG. 19 are fitted, and is a cross-sectional view of the same portion as FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 13 Insulator 132,133 Side wall 134 Receiving space 15 Signal contact 17 High frequency shield member 171 Shield plate part 172 1st extension part 173 2nd extension part 21 Plug connector 25 Signal contact 25 'Shield contact

Claims (2)

An insulator having a side wall that forms a receiving space for receiving the insertion portion of the mating connector, a signal contact held by the insulator and contacting the signal contact of the mating connector, and a shield member held by the insulator In the provided connector,
The shield member includes a shield plate portion provided so as to cover an outer surface of the side wall, a first extension portion connected to one end of the shield plate portion and contacting a shield contact of the mating connector, and the shield plate portion. A second extension portion connected to the other end and corresponding to the first extension portion;
The first extension part and the second extension part or the shield plate part are joined and electrically connected so as to form a loop surrounding the longitudinal section of the side wall ,
The connector, wherein the shield member is disposed in a mold when the insulator is molded, and the insulator is molded.   The connector according to claim 1, wherein the pair of signal contacts are disposed so as to be sandwiched between the first extensions.

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