JP3647979B2 - Multi-pole connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a configuration of a high-density multipolar connector that connects circuit boards that are orthogonal to each other, and more particularly, to a multipolar connector that improves transmission characteristics by suppressing crosstalk between adjacent terminals.
[0002]
In the recent electronic equipment field, in order to realize customer demands such as downsizing and cost reduction as a device, multiple terminals such as four rows or more are arranged at high density in a multipolar connector that connects orthogonal circuit boards. However, as the pitch between adjacent terminals becomes smaller, the signal transmission characteristics as a connector are likely to deteriorate due to crosstalk between adjacent terminals, and this is strongly desired. It is rare.
[0003]
[Prior art]
FIG. 19 exemplifying the case where there are four terminal rows is a schematic diagram for explaining a conventional multipolar connector together with a circuit board, (19-1) shows a plug connector, and (19-2) is a jack. It is a figure which shows a connector.
[0004]
The conventional multipolar connector 1 is composed of a plug connector 11 indicated by (19-1) and a jack connector 13 indicated by (19-2).
The plug connector 11 includes a plurality of plug terminals 111 each having one end connected to a jack terminal (described later) of the jack connector 13 and a second end formed in a pin-like external connection terminal 111b. Each plug terminal 111 is composed of a plug insulator 112 that is implanted in a square lattice with a predetermined pitch p at an insulator fixing portion located between the plug contact 111a and the external connection terminal 111b.
[0005]
On the plug contact side of the plug insulator 112, a peripheral wall 112a surrounding the plug contact arrangement region is provided at a height exceeding the tip of the plug contact.
[0006]
Accordingly, the plug connector 11 shown in the figure can be easily realized by resin-molding the plug insulator 112 having the shape described above by, for example, a normal insert molding technique in a state where the plug terminals 111 are arranged and aligned in a square lattice with a predetermined pitch p. can do.
[0007]
Further, in a circuit board (hereinafter simply referred to as a board) 12 on which the plug connector 11 is mounted, a through hole 12a having a diameter into which the external connection terminal 111b of the plug terminal 111 can be inserted corresponds to each external connection terminal 111b. Each circuit is formed in a state connected to a circuit pattern (not shown) in a square lattice shape with a predetermined pitch p.
[0008]
Therefore, after each external connection terminal 111b of the plug connector 11 is inserted into the through hole 12a, the plug connector 11 can be mounted on the substrate 12 by soldering them using a normal reflow technique or the like.
[0009]
On the other hand, the jack connector 13 includes a plurality of jack terminals 131 having one end bent at a right angle by a jack contact 131a that can be connected to the plug contact 111a and the other end formed on a pin-shaped external connection terminal 131b. The jack terminal 131 is composed of a jack insulator 132 that is implanted so that the jack contact side is located at each position corresponding to the plug contact 111a.
[0010]
In this case, the jack insulator 132 is formed so that the connection-side peripheral surface 132a of the plug connector 11 can be inserted into the plug connector 11 using the inner wall surface of the peripheral wall 112a of the plug connector 11 as a guide. In addition, the terminal protruding surface 132b of the external connection terminal 131b is formed as a stepped surface that is concave with respect to the surface of the connecting side peripheral surface 132a on the side of the terminal protruding surface, and the step forming surface 132c at that time is the jack connector 13. Is in contact with the end side 14a of the substrate 14 on which is mounted.
[0011]
Therefore, for example, a normal insert mold is used so that each external connection terminal 131b is exposed from the terminal protruding surface 132b in a state where the jack terminals 131 are arranged and aligned so that each jack contact 131a corresponds to the plug contact 111a. The jack connector 13 shown in the figure can be easily obtained by resin-molding the jack insulator 132 having the above shape by a technique.
[0012]
  The board 14 on which the jack connector 13 is mounted has a through hole 14 having a diameter into which the external connection terminal 131b of the jack terminal 131 can be inserted.bAre connected to a circuit pattern (not shown) at each position corresponding to each external connection terminal 131b, and each through-hole 14 is formed.bWhen the external connection terminal 131b is inserted, the above-mentioned end side 14a of the substrate 14 substantially coincides with the above-described step forming surface 132c of the insulator 132.
[0013]
  Therefore, each external connection terminal 131b of the jack connector 13 is connected to the through hole 14.bThen, the jack connector 13 can be easily mounted in a state where the jack connector 13 is positioned on the end side of the board 14 by soldering them together by a normal reflow technique or the like.
[0014]
Accordingly, the plug connector 11 mounted on the substrate 12 and the jack connector 13 mounted on the substrate 14 are fitted as shown by an arrow A to connect them, so that the substrate 12 and the substrate 14 are connected to each other. 1 can be connected.
[0015]
[Problems to be solved by the invention]
Such a multipolar connector 1 has an advantage that many signals between substrates orthogonal to each other can be interrupted at the same time.
[0016]
However, as the number of signals to be exchanged increases and the density of terminal arrangements as connectors increases, the pitch between adjacent terminals is reduced and crosstalk between adjacent terminals is likely to occur. There has been a problem that transmission characteristics are likely to deteriorate, and there has been a problem that it may not be possible to meet the customer's demand for downsizing.
[0017]
[Means for Solving the Problems]
  The above-mentioned problem is a multipolar connector mounted on both sides of the circuit board so as to straddle the edge of the circuit board, and the terminals in the even-numbered or more rows corresponding to the mating connector are arranged on the contact side. , Arranged in a uniform pitch staggered lattice symmetrical to the center line in the width direction of the insulator in which each terminal is implanted, and connected to the signal potentialFor signalContact onlyFirstLine andThe contact at the outermost end of the row is a signal contact, the contacts excluding the signal contact at the outermost end are connected by a tongue piece, and at least two ground contacts are provided from the tongue piece to the ground potential. SecondThis is solved by a multi-pole connector in which rows are arranged alternately.
[0018]
Further, in the multipolar connector, the external connection terminal side of the other end connected to each contact is between the adjacent external connection terminals at a pitch that does not exceed the value obtained by dividing the pitch by half of the number of columns. This is solved by a multi-pole connector formed in two rows at intervals corresponding to the thickness of the circuit board.
[0019]
In general, crosstalk between adjacent signal terminals can be suppressed by interposing a terminal or a shielding plate connected to the ground potential between the signal terminals. In this case, the crosstalk becomes larger as the terminal and the shielding plate become larger. The suppression effect can be increased.
[0020]
In addition, when terminals arranged in a square lattice with an equal pitch are arranged in an equal pitch staggered lattice (hereinafter, simply referred to as a staggered lattice in the text), the terminals are arranged in a state where all the pitches between adjacent terminals are secured. The density can be increased.
[0021]
Therefore, in the present invention, after arranging the conventional terminals arranged in a square lattice in the above-mentioned staggered lattice, every other terminal aligned in the column direction is connected to the ground potential without changing the position of each terminal. A connector is constructed by providing a shielding plate.
[0022]
This is because the terminal density is increased as compared with the conventional connector, and at the same time, a shielding plate that has a large area and is connected to the ground potential is arranged between the signal terminals aligned in the column direction. It means that talk can be effectively suppressed.
[0023]
Therefore, it is possible to realize a required connector that can satisfy both customer demands by improving both terminal density and signal transmission characteristics.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a diagram illustrating the configuration principle of the connector of the present invention in a terminal arrangement state, FIG. 2 is a diagram schematically illustrating the configuration of the connector according to the present invention, and FIG. 3 is the configuration of the plug connector according to the present invention. FIG. 4 is a diagram illustrating a completed state of the plug connector of FIG. 3, FIG. 5 is a diagram illustrating an insulator of the jack connector according to the present invention, and FIG. 6 is a first jack of the jack connector according to the present invention. FIG. 7 is a diagram for explaining the second jack terminal, FIG. 8 is a diagram for explaining the third jack terminal, FIG. 9 is a diagram for explaining the fourth jack terminal, and FIG. 11 is a diagram for explaining the sixth jack terminal, FIG. 12 is a diagram for explaining the seventh jack terminal, and FIG. 13 is a diagram showing the first and second jacks on the insulator of FIG. FIG. 14 shows a state in which the terminal is fixed, and FIG. Fig. 15 is a diagram in which the fifth jack terminal is added and secured to Fig. 14, and Fig. 16 is a diagram in which the sixth and seventh jack terminals are added and secured to Fig. 15. FIG. 17 is a cross-sectional view showing a connection state with the plug terminal at the terminal position of FIG. 14, and FIG. 18 is a cross-sectional view showing a connection state with the plug terminal at the terminal position of FIG.
[0025]
In the figure, since the case where the connector described in FIG. 19 is used as an example is taken as an example, the same target members and parts as those in FIG. 19 are denoted by the same reference symbols, and redundant descriptions are omitted.
[0026]
FIG. 1 illustrates a terminal arrangement state when a jack connector is taken as an example, and (1-1) shows a case of a conventional connector, and (1-2) shows a terminal arrangement state of the present invention. In principle, (1-3) is a diagram showing the terminal arrangement of the connector of the present invention.
[0027]
That is, in (1-1) of the figure, the jack connector 131 described in FIG. 19 has a plurality of jack terminals 131 arranged in a square lattice with a pitch p as described in FIG. Has been.
[0028]
A region indicated by a broken line indicates a peripheral wall 112 a provided in the plug connector 11 corresponding to the jack connector 13.
Therefore, there is a drawback that crosstalk between adjacent terminals is likely to occur as the pitch p between terminals decreases.
[0029]
Therefore, in the present invention, each jack terminal 231 corresponding to the jack terminal 131 has an equal pitch staggered lattice in which all adjacent terminal pitches p are secured as shown in (1-2). In this case, the projected pitch p ′ between terminals in the terminal row direction, that is, the insulator width direction is
p '= 3^1/2・ P / 2
Since “p> p ′” is established, it is possible to realize a high-density terminal arrangement in the column direction.
[0030]
However, in this case, the arrangement region of each jack terminal 231 is biased with respect to the center line A in the width direction of the insulator.
Therefore, in the jack connector 23 according to the present invention, as shown in (1-3), half of the terminals in the row direction column are arranged so that the terminals 231 located in a staggered pattern are symmetrically arranged on the center line A. (2 in the case of the figure) 1 pitch in the width direction of the insulator, that is, “p” apart, and the pitch L between the two terminals sandwiching the center line A₁Is set to “2p”, and the jack connector 23 is configured as a shielding area B connecting the two terminals located on the center line side to the ground potential.
[0031]
In this case, however, the pitch L between the terminals at both ends in the insulator width direction₂Becomes “4p”, and there is a demerit of expanding by one pitch, ie, “p”, from the conventional inter-terminal pitch “L = 3p”. The expansion in the width direction is, for example, the plug connector corresponding to the jack connector 23 The width of the jack connector without changing the overall width of the connector by taking measures such as reducing the peripheral wall thickness of the connector from 212a 'shown by (1-2) to 212a shown by (1-3), etc. It can be easily realized by expanding the range.
[0032]
In the jack connector 23, all signal terminals except the ground potential terminal connected to the shielded area B described above are opposed to the shielded area B at a distance equal to the inter-terminal pitch p. As the talk is suppressed, the signal transmission characteristics as the connector can be improved.
[0033]
Hereinafter, the configuration of the connector of the present invention will be described in detail with reference to the drawings.
The multipolar connector 2 according to the present invention in FIG. 2 includes a plug connector 21 indicated by (2-1) and the above-described jack connector 23 indicated by (2-2).
[0034]
The plug connector 21 has a plug terminal 211 having the same configuration as the plug terminal 111 described in FIG. 19, and the plug terminals 211 are arranged in a staggered pattern described in (1-3) of FIG. The plug connector 212 shown in the figure can be easily obtained by implanting the plug terminal 211 in the plug insulator 212.
[0035]
In the substrate 22 on which the plug connector 21 is mounted, the through holes 12a described in FIG. 19 are illustrated in a staggered pattern at respective positions corresponding to the external connection terminals 111b of the plug connector 21, that is, at a predetermined pitch p. It is formed in a state connected to a circuit that is not.
[0036]
Accordingly, the plug connector 21 can be mounted on the substrate 22 by soldering the plug connector 21 in the state where the plug connector 21 is mounted on the substrate 22 as in FIG.
[0037]
On the other hand, the jack connector 23 has a plurality of jack terminals 231 formed in a tongue-like external connection terminal region D to be described later at the other end after one end is offset and bent by a jack contact 131a (not shown) described in FIG. Each jack terminal 231 is composed of a jack insulator 232 in which the jack contact side is implanted in a staggered pattern corresponding to each of the plug contacts 111a.
[0038]
When the jack terminal 231 is implanted in the jack insulator 232 so that the jack contacts 131a have the staggered pattern described in (1-3) of FIG. 1, the external connection terminal region D has two rows. Since the jack terminal 231 is formed so as to be aligned with each other, the required jack connector 23 can be configured as shown in the figure by implanting the jack terminal 231 in the jack insulator 232.
[0039]
In the region corresponding to B in FIG. 1 in the jack connector 23, a tongue piece 231 for shielding crosstalk is provided._-Fivea fifth jack terminal 231 to be described later and connected to the ground potential._-FiveIs arranged.
[0040]
On the other hand, on the board 24 having a thickness T on which the jack connector 23 is mounted, the connection electrodes parallel to each other at positions corresponding to both sides in the vicinity of the end 24a with a pitch of p '/ 2 described in FIG. Patterning is performed in a state where 24a is connected to a circuit (not shown).
[0041]
Accordingly, the jack connector 23 can be mounted on the board 24 by soldering the board 24 to the external connection terminal region D arranged in two rows of the jack connector 23 in a state where the board 24 is inserted as shown by the arrow E. it can.
[0042]
In FIG. 3, the plug connector 21 includes the plug terminal 211 and the plug insulator 212 as described above.
The plug terminal 211 is formed such that one end is a plug contact 111a similar to the plug terminal 111 of FIG. 19 and the other end side of the insulator fixing portion 211a is a straight external connection terminal 211b.
[0043]
The region of the external connection terminal 211b is formed in a substantially U shape as shown in a sectional view (a) obtained by cutting the region with arrows a to a ′ so as to resist bending stress.
[0044]
On the other hand, the plug insulator 212 has the same shape as that of the plug insulator 112 of FIG. 19, and the terminal planting area 212a on the bottom surface has the respective positions, i.e., pitches described in (1-3) of FIG. A through hole 212b in which the plug terminal 211 can be fixed by press-fitting of the insulator fixing portion 211a is formed in a p "staggered pattern.
[0045]
Therefore, the plug terminal 211 starting from the plug contact 111a is inserted into the through hole 212b as indicated by an arrow F from the back surface (lower surface in the figure) of the plug insulator 212, and the through hole of the insulator fixing portion 211a is inserted. The plug connector 21 in which the plug terminals 211 are fixed in a staggered pattern with a pitch “p” can be configured as shown in FIG. 4 by being fixed to the plug insulator 212 by press-fitting into 212b.
[0046]
In the plug connector 21, the plug terminals 211 are aligned in the left-right direction with respect to the center line A in the width direction of the plug insulator 212 as shown in (4-2) in a cross-sectional view.
[0047]
The jack connector 23 according to the present invention will be described below with reference to FIGS. 5 to 18. First, the jack insulator 232 will be described with reference to FIG. 5 for easy understanding.
That is, in FIG. 5, (5-1) is a partial cross-sectional view of the appearance, and (5-2) is a cross-sectional view when the insulator is cut along arrows b to b ′. .
[0048]
In the figure, the jack insulator 232 has a plate shape whose plan view size is substantially equal to the plan view size of the plug insulator 212 described in FIG. The guide portion 232a fitted to the inner wall surface of the peripheral wall of the plug insulator 212 has an outer shape formed by a step 232b protruding from the guide portion.
[0049]
The insulator 232 has jack terminals connected to the plug terminals 211 at positions corresponding to the plug terminals 211 when the insulator 232 is fitted to the plug connector 21 described with reference to FIG. A jack terminal hole 232d for fixing is formed with an opening hole 232f having a guide hole 232e for guiding and penetrating the plug terminal 211.
[0050]
In this case, the jack terminal holes 232d are such that the four jack terminal holes 232d have a pitch L between the two terminals in the insulator width direction of three pitches, that is, “3p” as shown in FIG. Rows G arranged at equal pitches in the row direction₁And the pitch L between the terminals at both ends as shown in cross section in FIG.₂Is arranged in the row direction so that becomes 4 pitches, that is, “4p”.₂And are formed alternately.
[0051]
And row G₁Then, each terminal hole 232d is independent._-1~ 232d_-FourAre formed in parallel as row G₂Then, the jack terminal hole 232d widened by removing the partition between the terminal holes located inside._-FiveAnd the terminal hole 232d_-1~ 232d_-FourTerminal hole 232d equal to_-6232d_-7And formed.
[0052]
Accordingly, the jack insulator 232 has the jack terminal hole 232d._-1~ 232d_-FourAnd 232d_-Five~ 232d_-7Are formed in every other row in the column direction at the pitch p 'described above.
[0053]
On the other hand, in FIG. 6 to FIG._-1And 232d_-2And the first terminal 231 in a state before the insulator is fixed._-1And the second terminal 231_-28 and 9 show the jack terminal hole 232d._-3And 232d_-FourAnd the third terminal 231 in a state before the insulator is fixed._-3And the fourth terminal 231_-FourFIG. 10 shows the jack terminal hole 232d._-FiveA terminal corresponding to the fifth terminal 231_-Five11 and 12 show the jack terminal hole 232d._-6And 232d_-7And the sixth terminal 231 in a state before the insulator is fixed._-6And the seventh terminal 231_-7Respectively.
[0054]
That is, the first terminal 231 in FIG._-1Is one end of the jack contact 231 connected to the plug contact of the plug terminal 211 described in FIG._-1The insulator fixing portion 231 with respect to the insulator 232 at a_-1The external connection terminal 231 in which the tip after b is reduced to one side in the width direction of the fixing portion_-1c.
[0055]
In this case, the external connection terminal 231_-1c is the fixing portion 231._-1The jack contact 231 is bent in the thickness direction as shown in the figure at the root portion following b._-1a side 231 on one side of a_-1a predetermined distance from a 't₁Is formed to ensure.
[0056]
Note that the bending amount a of the offset bending described above is formed to be approximately ¼ of the pitch p ′ described in FIG.₁Is the terminal 231_-1The jack terminal hole 232d_-1The side 231 from the center line A in the insulator width direction when fixed to the side_-1The distance to a ′ is α₁When “α”₁+ T₁"Is set so as to substantially correspond to 1/2 of the thickness T of the circuit board 24 described in FIG.
[0057]
Therefore, t₁Is
 t₁≒ (T / 2) -α₁
Can be shown.
[0058]
In FIG. 7, the second terminal 231 is used._-2Is the first terminal 231 in terms of external appearance._-1Only the direction of the offset bending is equal to the first terminal 231._-1Is the opposite.
[0059]
This means that the first terminal 231 is the same._-1And the second terminal 231_-2And the jack terminal holes 232d of the insulator 232 so that the jack contacts are located on the same plane._-1232d_-2When fixed to each external connection terminal 231_-1c and 231_-2It is shown that c is shifted by p ′ / 2 in the terminal column direction and a gap substantially corresponding to the thickness T of the circuit board 24 is obtained in the terminal row direction.
[0060]
Further, in FIG._-3Is one end of the first terminal 231._-1Equal to jack contact 231_-3The insulator fixing part 231 is a._-1Insulator fixing portion 231 equal to b_-3The external connection terminal 231 whose width is reduced after b_-3c.
[0061]
In this case, the external connection terminal 231_-3c is the fixing portion 231._-3The first terminal 231 at the root portion following b_-1And in the opposite direction (in other words, the second terminal 231)._-2The jack contact 231 is bent in the same direction as_-3a side 231 on one side of a_-3a predetermined distance from a 't₂Is formed to ensure.
[0062]
Note that the bending amount a in the offset bending is the first terminal 231._-1In the same manner as in FIG. 1, the pitch p ′ described in (1-2) of FIG.₂Is the terminal 231._-3The jack terminal hole 232d_-3The side 231 from the center line A in the insulator width direction when fixed to the side_-3The distance to a ′ is α₂When “α”₂+ T₂"Is approximately the thickness T of the circuit board 24 described in FIG.
It is set to correspond to 1/2.
[0063]
Therefore, t₂Is
 t₂≒ (T / 2) -α₂
Can be shown.
[0064]
In FIG. 9, the fourth terminal 231 is used._-FourIs the third terminal 231 in terms of external appearance._-3Is equal to the offset bending direction only in the third terminal 231._-3(In other words, the first terminal 231 is_-1In the same direction).
[0065]
This means that the third terminal 231 described above._-3And the fourth terminal 231_-FourThe jack terminal holes 232d of the insulator 232 so that the jack contacts are located on the same plane._-3232d_-FourBy fixing to each external connection terminal 231_-3c and 231_-FourIt is shown that c is shifted by p ′ / 2 in the terminal row direction and a gap substantially corresponding to the thickness T of the circuit board 24 is obtained in the terminal row direction.
[0066]
On the other hand, the jack terminal hole 232d described in (5-2) of FIG._-FiveThe fifth terminal 231 fixed to the_-FiveAs shown in FIG. 10, one end is the first terminal 231._-1Equal to jack contact 231_-FiveTerminal area 231 formed in a_-Fiveb described in (1-3) of FIG.₁That is, it is arranged with a pitch of “2p” and the slits 231 are provided between the terminal areas._-Fivetongue 231 through c_-Fiveand each terminal area 231_-FiveConnecting piece 231 connecting b_-FiveTwo external connection terminals 231 are provided on the base end side of the tongue of e._-Fiveg is formed so as to protrude to the center line target position.
[0067]
The connecting piece 231_-FiveThe bulge 231 for fixing to the insulator 232 is provided on both sides in the width direction of e._-Fivef is formed, and the tongue piece 231 is formed._-FiveThe guides 231 having substantially the same shape as the guide holes 232e in the jack insulator 232 described in FIG._-Fiveh protrudes.
[0068]
In this case, the external connection terminals 231_-Fiveg is the connecting piece 231._-FiveThe first terminal 231 as shown in the root portion following e_-1The predetermined distance t with the offset bent in the same direction as t_ThreeHowever, the offset bend amount a is formed to be approximately 1/4 of the pitch p ′ described in FIG._ThreeIs set to correspond to the thickness T of the substrate 24 described in FIG.
[0069]
The fifth terminal 231_-FiveThe jack terminal hole 232d of the insulator 232_-FiveWhen the tongue 231 is fixed to_-Fivetip side 231 of d_-Fived ′ substantially coincides with the guide portion side end surface 232 c of the insulator 232.
[0070]
Therefore, the fifth terminal 231_-FiveThe jack terminal hole 232d of the insulator 232_-FiveThe two jack contacts 231 are fixed to_-FiveBetween the a, the tongue piece 231 as in the region B described in FIG._-FiveIt will be shielded by d.
[0071]
Furthermore, in FIG._-6Is one end of the first terminal 231._-1Equal to jack contact 231_-6a is the first terminal 231._-1Insulator fixing part 231_-1Insulator fixing portion 231 equal to b_-6External connection terminal 231 in which the tip after b is reduced in width to one side in the fixing portion width direction_-6c.
[0072]
In this case, the external connection terminal 231_-6c is the fixing portion 231._-6The third terminal 231 at the root portion following b_-3The jack contact 231 is bent in the same direction as the above._-6a side 231 on one side of a_-6a predetermined distance from a 't_FourHowever, the bending amount a in the offset bending is the first terminal 231._-1In the same manner as in FIG. 1, the pitch p ′ described in (1-2) of FIG._FourIs the terminal 231_-6The jack terminal hole 232d_-6The side 231 from the center line A in the insulator width direction when fixed to the side_-6The distance to a ′ is α_FourWhen “α”_Four+ T_Four"Is set to correspond to approximately ½ of the thickness T of the circuit board 24 described in FIG.
[0073]
Therefore, t_FourIs
 t_Four≒ (T / 2) -α_Four
Can be shown.
[0074]
In FIG. 12, the seventh terminal 231 is used._-7Is the sixth terminal 231 in terms of its outer shape._-6Only the offset bending direction is equal to the sixth terminal 231._-6(In other words, the first terminal 231 is_-1In the same direction).
[0075]
This means that the sixth terminal 231 described above._-6And the seventh terminal 231_-7And the jack terminal hole 232d of the insulator 232 so that the jack contacts are located on the same plane._-6232d_-7By fixing to each external connection terminal 231 located on the same surface_-6c, 231_-7This means that the distance between c is made to substantially correspond to the thickness T of the substrate 24 described in FIG.
[0076]
The sixth and seventh terminals 231 are also provided._-6, 231_-7And the fifth terminal 231 described above._-FiveThe jack terminal holes 232d of the insulator 232 so that the jack contacts are located on the same plane._-6232d_-7And 232d_-FiveWhen fixed to each external connection terminal 231_-6c, 231_-7c and 231_-FiveIt is shown that c is shifted by p ′ / 2 in the terminal row direction.
[0077]
Therefore, first, the first terminal 231 is used._-1The jack contact 231_-1Jack terminal hole 232d of jack insulator 232 described with reference to FIG._-1Inserted into the terminal 231_-1Insulator fixing part 231_-1b, the jack contact 231 is fixed by press-fitting into the hole._-2Second terminal 231 starting from a_-2The jack terminal holes 232d of the jack insulator 23._-2The first terminal 231 is inserted into and fixed in the same manner as described above._-1And the second terminal 231_-2Can be fixed to the jack insulator 232 as shown in FIG.
[0078]
In this case, the first terminal 231_-1And the second terminal 231_-2Jack contacts 231_-1a, 231_-2a is each jack terminal hole 232d_-1232d_-2  At the same time as each external connection terminal 231_-1c, 231_-2c is from the hole a
 It is shifted by p '/ 4 in the same direction (right direction in the figure).
[0079]
Further, each external connection terminal 231_-1c, 231_-2distance between c₁Is equivalent to “2 (α₁+ T₁) ", Which substantially corresponds to the thickness T of the circuit board 24 described above.
[0080]
Jack contact 231_-3Third terminal 231 starting from a_-3The jack terminal holes 232d of the jack insulator 232_-3The jack contact 231_-Foura fourth terminal 231 starting from a_-FourThe jack terminal holes 232d of the jack insulator 23._-3The third terminal 231 is inserted into and fixed to the third terminal 231._-3And the fourth terminal 231_-FourCan be fixed to the jack insulator 232 as shown in FIG.
[0081]
In this case, the third terminal 231_-3And the fourth terminal 231_-FourJack contacts 231_-3a, 231_-Foura is each jack terminal hole 232d_-3232d_-FourAt the same time as each external connection terminal 231_-3c, 231_-Fourc is located in the opposite direction to the first and second terminals (leftward in the figure) by a, that is, p '/ 4.
[0082]
Accordingly, the external connection terminals 231_-3c, 231_-Fourc and each external connection terminal 231 described in FIG._-2c, 23_{1 -2}c is located apart in the column direction by p ′ / 2, and at the same time, the distance w between the external connection terminals₂Is “2 (α₂+ T₂) ", So w in FIG.₁As a result, it is possible to substantially correspond to the thickness T of the substrate 24.
[0083]
Furthermore, the tongue 231_-FiveThe fifth terminal 231 starting from the h side_-FiveThe jack terminal hole 232d of the jack insulator 232_-FiveInserted into the terminal 231_-FiveNo bulge 231_-FiveThe state shown in FIG. 15 can be obtained by fixing the insulator 232 by press-fitting e ′ into the hole.
[0084]
In this case, the fifth terminal 231_-FiveJack contacts 231_-Fivea is each jack terminal hole 232d_-FiveAt the same time as the external connection terminal 231_-Fiveg can be shifted from the hole in the right direction in the drawing, that is, in the same direction as the first and second terminals by a, that is, p ′ / 4.
[0085]
Therefore, the third terminal 231 described above is used._-3And the fourth terminal 231_-FourExternal connection terminals 231_-3c, 231_-Fourc is the jack terminal hole 232d._-3232d_-FourThe fifth terminal 231 is located on the left side by a distance of p ′ / 4._-FiveExternal connection terminals 231_-Fiveg and the third terminal 231_-3And the fourth terminal 231_-FourThe external connection terminals are located at a distance of p '/ 2.
[0086]
Subsequently, Jack Contact 231_-6a sixth terminal 231 starting from a_-6The jack terminal holes 232d of the jack insulator 232_-6The jack contact 231_-7Seventh terminal 231 starting from a_-7Each jack terminal hole 232d of the jack insulator 232_-7The sixth terminal 231 is inserted into and fixed to the sixth terminal 231._-6And the seventh terminal 231_-7Are fixed to the jack insulator 232, so that the arrangement shown in FIG. 16 can be obtained.
[0087]
The sixth terminal 231_-6And the seventh terminal 231_-7Jack contacts 231_-6a, 231_-7a is jack terminal hole 232d_-6232d_-7In the state located at each of the external connection terminals 231_-6c, 231_-7c is the left direction in the figure from the hole, that is, the fifth terminal 231._-FiveExternal connection terminal 231_-Fivea or p '/ 4 in the opposite direction to g
It is located just off.
[0088]
Accordingly, the external connection terminals 231_-6c, 231_-7c and the fifth terminal 231 described in FIG._-FiveExternal connection terminal 231_-Fivec is located apart in the column direction by p ′ / 2, and at the same time, the distance w between the external connection terminals_FourAs described in FIGS. 11 and 12, “2 (α_Four+ T_Four) ", So w in FIG.₁As a result, the thickness of the substrate 24 described with reference to FIG.
[0089]
This means that the first terminal 231_-1To seventh terminal 231_-7Each external connection terminal 231 until_-1c-231_-7c indicates that the gap substantially corresponding to the thickness T of the substrate 24 described with reference to FIG. 2 is aligned with a pitch between adjacent portions of p ′ / 2.
[0090]
On the other hand, as described with reference to FIG. 2, the substrate 24 has the connection electrodes 24a patterned at a pitch of p '/ 2.
Therefore, the connection electrode 24a of the substrate 24 and the external connection terminal 231 of each terminal._-1c-231_-7The jack connector 23 can be mounted on the board 24 by inserting the board 24 between the external connection terminals so that the values c match each other and soldering them together by, for example, a normal solder connection technique.
[0091]
FIG. 17 shows the jack connector 23 as shown in FIG.₁The plug connector 21 corresponding to the connector 23 is viewed in cross section along the same line.
That is, in FIG. 17, (17-1) shows the state before connection, and (17-2) shows the state after connection.
[0092]
In FIG. 17-1, the jack connector 23 has a first terminal hole 232 d of the insulator 232._-1To fourth terminal hole 232d_-2First terminals 231 respectively fixed to_-1To fourth terminal 231_-FourIs in an exposed state.
[0093]
On the other hand, the plug connector 21 corresponding to the jack connector 23 has the first terminal 231._-1To fourth terminal 231_-FourJack contacts 231_-1a through 231_-FourThe plug terminal 211 is exposed at each position corresponding to a.
[0094]
Therefore, the board 24 described with reference to FIG. 2 is inserted between the external connection terminals of the jack connector 23 to mount the jack connector 23 on the board 24, and the board 22 of each external connection terminal of the plug connector 21. The plug connector 21 is mounted on the substrate 22 by insertion into the through hole 22a.
[0095]
Thereafter, by fitting the jack connector 23 and the plug connector 21 as indicated by an arrow H, the two can be connected as shown in (17-2). A connection between the two can be realized.
[0096]
In this case, the required pitch “p” is secured between all adjacent terminals, and when the jack connector 23 and the plug connector 21 are fitted, the plug contact insertion portion of the jack connector 23 is inserted into the plug contact insertion portion in FIG. Since the described guide hole 232e is formed, reliable insertion and connection of each plug contact 111a can be realized.
[0097]
On the other hand, FIG. 18 shows the jack connector 23 as shown in FIG.₂FIG. 17 is a cross-sectional view taken along a line, and the plug connector 21 is taken along a cross-sectional view along the same line. Like FIG. 17, (18-1) shows before connection and (18-2) shows after connection.
[0098]
In FIG. 18-1, the jack connector 23 has a fifth terminal hole 232 d of the insulator 232._-FiveTo seventh terminal hole 232d_-7Fifth terminals 231 respectively fixed to_-FiveTo seventh terminal 231_-7Is in an exposed state.
[0099]
On the other hand, the plug connector 21 corresponding to the jack connector 23 has the fifth terminal 231._-FiveTwo jack contacts 231_-Fivea and the sixth and seventh terminals 231_-6, 231_-7Jack contacts 231_-6a, 231_-7The plug terminal 211 is exposed at each position corresponding to a.
[0100]
Therefore, by fitting the jack connector 23 and the plug connector 21 in the same manner as in FIG. 17, both can be connected as shown in (18-2).
In this case, when the jack connector 23 and the plug connector 21 are fitted, the fifth terminal 231 of the jack insulator 232 is used._-FiveJack terminal hole 232d_-FiveIs larger in the width direction, the fifth terminal 231_-FiveAlthough a plug hole for a plug terminal to be connected to cannot be formed, the fifth terminal 231_-FiveThe tip of the tongue 231_-Fived 'chamfered guides 231 provided on both sides_-Fiveh and the jack terminal hole 232d_-FiveSince the same effect as that of the guide hole 232e can be obtained by facing the guide hole protrusion formed on the one side wall surface, the plug contact 111a can be reliably inserted and connected as a result.
[0101]
And the 6th and 7th terminal 231 located in both ends_-6, 231_-7Tongue piece 231 connected to ground potential during_-Fived. The fifth terminal 231 is shown in FIGS._-FiveThe fifth terminal 231 is located at a distance away from the terminal by an equal pitch p._-FiveThis means that all other terminals except for are located.
[0102]
In other words, as described in (1-3) of FIG. 1 in plan view of the jack connector 23, all the terminals arranged with the pitch “p” between adjacent terminals secured to the ground potential. Fifth terminal 231_-FiveTherefore, crosstalk between terminals is suppressed.
[0103]
Therefore, it is possible to configure a connector that can achieve both high-density terminal arrangement and crosstalk suppression while ensuring a required pitch between adjacent terminals.
In the above description, the case where there are four terminal rows is taken as an example. For example, when there are six terminal rows, the pitch between the connection electrodes of the substrate 24 described in FIG. A new board with / 3.
[0104]
As for the insulator, G of the insulator 232 described in FIG.₁In addition to increasing the four jack terminal holes 232d in the wire to six,₂Jack terminal hole 232d of the three jack terminal holes 232d in the wire_-FiveOnly the insulator width direction length is L₂The new insulator.
[0105]
Further, each jack terminal has an external connection terminal length that can be connected to the above-mentioned new board when the seven types of jack terminals described in FIGS. 6 to 13 are fixed to each jack terminal hole of the new insulator. 9 types of new jack terminals, and the bending amount a of each of the nine types of new jack terminals is bent by “one type not bending offset” and “p ′ / 3” depending on the position of fixing to the new insulator. It is divided into 3 types, “2 types that reverse the direction”.
[0106]
Thereafter, each of the nine types of new jack terminals is fixed to the new insulator by following the same procedure as described with reference to FIGS. 13 to 16, so that the new connector having six rows of terminals is also connected to the new connector. The invention can be applied.
[0107]
【The invention's effect】
As described above, according to the present invention, it is possible to realize a multipolar connector that can realize a high density as a terminal and suppression of crosstalk between adjacent terminals in a betting area while ensuring a required pitch between adjacent terminals.
[0108]
In the description of the present invention, the case where the mating connector is a board plug connector is taken as an example, but the present invention is not limited to this. For example, even when the mating connector is a cable or a jack connector, It is clear that an equivalent effect can be obtained.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining the configuration principle of a connector of the present invention in a terminal arrangement state.
FIG. 2 is a diagram schematically illustrating a configuration of a connector according to the present invention.
FIG. 3 is a diagram illustrating a configuration of a plug connector according to the present invention.
4 is a view showing a completed state of the plug connector of FIG. 3. FIG.
FIG. 5 is a diagram illustrating an insulator of a jack connector according to the present invention.
FIG. 6 is a diagram illustrating a first jack terminal of the jack connector according to the present invention.
FIG. 7 is a diagram illustrating a second jack terminal.
FIG. 8 is a diagram illustrating a third jack terminal.
FIG. 9 is a diagram illustrating a fourth jack terminal.
FIG. 10 is a diagram illustrating a fifth jack terminal.
FIG. 11 is a diagram illustrating a sixth jack terminal.
FIG. 12 is a diagram illustrating a seventh jack terminal.
13 is a view showing a state in which the first and second jack terminals are fixed to the insulator of FIG. 6. FIG.
FIG. 14 is a diagram in which third and fourth jack terminals are added and fixed to FIG.
FIG. 15 is a diagram in which a fifth jack terminal is added to and secured to FIG.
FIG. 16 is a diagram in which sixth and seventh jack terminals are added and fixed to FIG. 15;
17 is a cross-sectional view showing a connection state with the plug terminal at the terminal position in FIG. 14;
18 is a cross-sectional view showing a connection state with the plug terminal at the terminal position of FIG. 16;
FIG. 19 is a schematic view illustrating a conventional multipolar connector together with a circuit board.
[Explanation of symbols]
12a, 212b Through hole
13,23 Jack connector (connector)
21 Plug connector
22, 24 Circuit board
24a Connection electrode
111a Plug contact
112a, 212a, 212a 'peripheral wall
131, 231, 231_-1~ 231_-7    Jack terminal
132,232 jack insulator
211 Plug terminal
211a Insulator fixing part
211b External connection terminal
212 Plug insulator
212a Terminal planting area
231_-1a-231_-7a Jack contact
231_-1a'-231_-7a 'side
231_-1b-231_-Fourb, 231_-6b_,231_-7b Insulator fixing part
231_-1c-231_-Fourc_,231_-6c_,231_-7c External connection terminal
231_-Fiveb Terminal area
231_-Fivec Slit
231_-Fived tongue
231_-Fived 'tip side
231_-Fivee Connecting piece
231_-Fivef Bulge
231_-Fiveg External connection terminal
231_-Fiveh Guide
232a Guide part
232b steps
232c Guide end face
232d, 232d_-1~ 232d_-7        Jack terminal hole
232e Guide hole
232f opening hole

Claims (3)

A multipolar connector mounted on both sides of the circuit board so as to straddle the edge of the circuit board,
4 or more rows of terminals corresponding to the mating connector
Contact side is arranged at equal pitches houndstooth symmetrical with respect to the width direction center line of the insulator implanting the respective terminal, and a first row of only signal contacts connected to the signal potential, the line The outermost contact is a signal contact, the contacts excluding the outermost signal contact are connected by a tongue piece, and a second contact having at least two grounding contacts connected to the ground potential from the tongue piece is provided. A multi-pole connector characterized in that rows are arranged alternately. The multipolar connector according to claim 1,
The external connection terminal side of the other end connected to each contact has an interval corresponding to the thickness of the circuit board at a pitch not exceeding the value obtained by dividing the pitch by half of the number of columns between the adjacent external connection terminals. A multi-pole connector characterized by being formed in two rows kept.   The multi-pole connector according to claim 1, wherein the tongue piece includes chamfered guides on both sides in the width direction of the tip side of the tongue piece.

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