JP2002334752A - Connector for connecting substrate and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems of the shield of a connector, to reduce man-hours of assembling, to enhance moldability and productivity, and to reduce a production cost. SOLUTION: This connector is equipped with a receptacle connector and a plug connector. The plug connector is equipped with a housing into which the receptacle connector is inserted and a plurality of pin terminals arranged in the housing. The receptacle connector is equipped with a plurality of contacts having contact pieces with the pin terminals and housings holding the contacts. A plurality of longitudinal shield plates each of which is formed between the pin terminals are installed in the plug connector. A plurality of lateral shield plates are installed in the receptacle connectors in a crossing state to the longitudinal shield plates. Slits for advancing the longitudinal shield plates are installed in the housing of the receptacle connector and the lateral shield plates.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board connecting connector for electrically connecting boards, and a method of manufacturing the same.

[0002]

2. Description of the Related Art A board connecting connector for connecting circuit boards to each other in order to increase the mounting density of electronic circuits or to arrange a plurality of circuit boards in a three-dimensional manner as electronic equipment becomes smaller and thinner. Is often used.

[0003] This board connection connector generally comprises a receptacle connector and a plug connector. In this type of connector, the receptacle connector is on one board side,
A plug connector is mounted on each of the other substrates.
There are roughly two forms of connection between boards using this type of connector. One is a mode in which both connectors are sandwiched between a pair of substrates in a state where the substrates are overlapped and connected. The other is a form in which the surface of one substrate and the surface of the other substrate intersect at a substantially right angle when both connectors are connected.

As the former connector for connecting a board, for example, Japanese Patent Application Laid-Open Nos. Hei 5-275147 and Hei 11-329
No. 636. The latter connector for connecting a board is described in, for example, JP-A-8-288019 and JP-A-10-172652.

[0005]

In the meantime, in the case of the connector for board connection, the number of terminals becomes a multi-pin connector ranging from several tens to several hundreds in recent years, a high-speed transmission connector, and the like. Therefore, there were problems to be solved in the following points.

First, there is the problem of electromagnetic shielding of signal terminals. Although some of the conventional connectors for board connection have been considered with respect to this electromagnetic shield, they are not sufficient. For example, there is a plug connector provided with a plurality of rows of signal terminals (signal pins) in the width direction of the housing and a plurality of stages in the thickness direction of the housing. In this connector, shield plates extending in the thickness direction (longitudinal direction) of the housing are simply arranged at intervals in the width direction of the housing. Therefore, there is a problem that crosstalk occurs between signal terminals having no shield plate therebetween.

Second, there is a problem of manufacturability and manufacturing cost of the receptacle connector. For example, in a receptacle connector provided with a large number of contacts arranged in a grid pattern of 25 pins in the width direction and 5 pins in the thickness direction of the receptacle housing, a method of press-fitting the large number of contacts into the mounting holes of the housing. Has been implemented. At that time, the contacts and the shield plate are alternately press-fitted. However, since the shield plate is inserted vertically, only five rows of the contacts can be press-fitted at a time. As a result, the press-fitting process of the contact and the press-fitting process of the shield
And 50 times in total, which is disadvantageous in that the manufacturability is poor and the manufacturing cost is high. Of course, also in this case, the above-mentioned problem of the shield has not been solved yet.

Japanese Unexamined Patent Publication No. Hei 7-114952 describes an electrical connector in a multi-pole electrical connector that can shield not only signal terminals of each row between adjacent rows but also between adjacent signal terminals in the same row. However, this technology is suitable for a relatively simple connector with a small number of poles, but as the number of poles increases, the number of parts including the shield plate increases dramatically, and the number of assembly steps increases and the complexity increases. There is a problem that the manufacturing cost is increased. Furthermore, as the number of poles increases, the housing becomes more complicated and finer, which causes problems in moldability and moldability.

An object of the present invention is to solve the problem of the shield of the connector, to prevent the occurrence of crosstalk and the like, and to reduce the number of assembling steps and to improve the formability and the manufacturability by unitization. It is an object of the present invention to provide a technology capable of reducing a manufacturing cost.

[0010]

The present invention employs the following means in order to solve the above-mentioned problems. A board connection connector for electrically connecting boards, comprising a receptacle connector mounted on one board and a plug connector mounted on the other board. The plug connector includes a housing having an opening into which the receptacle connector is inserted, and a plurality of pin terminals arranged in a grid with respect to the housing. The receptacle connector includes a plurality of contacts each having a contact piece that makes electrical contact with each pin terminal, and a housing that holds each of the contacts. In the plug connector, a plurality of vertical shield plates arranged in parallel with each other are provided between each pin terminal.

In the receptacle connector, a plurality of horizontal shield plates arranged in parallel with each other are provided so as to cross the vertical shield plate in a cross shape. The housing and the horizontal shield plate of the receptacle connector are provided with slits for allowing the vertical shield plate of the plug connector to enter. The housing of the receptacle connector is composed of a plurality of housing units stacked in a plurality of stages in the thickness direction of the housing and connected to each other, and the horizontal shield plate is provided integrally with each housing unit.

According to the present invention, since a plurality of horizontal shield plates arranged in parallel with each other are provided in the receptacle connector so as to intersect the vertical shield plate on the plug side in a cross shape, a signal terminal between signal terminals is provided. It is possible to adopt a form in which a shield plate is present in all. This can solve the problem of the shield of the connector and prevent crosstalk and the like from occurring.

In particular, according to the present invention, the receptacle housing and the contacts are unitized, and the horizontal shield plate is integrated with the housing unit.
The number of assembling steps can be reduced, and the moldability and manufacturability can be improved, so that the manufacturing cost can be reduced as a whole.

Further, the number of housing units can be reduced by arranging a plurality of housing units in a plurality of stages in the thickness direction of the housing and connecting them together.

In the present invention, when each of the pin terminals and the contact piece of each of the contacts are electrically connected to each other, the periphery of each connection portion is surrounded by the vertical shield plate and the horizontal shield plate. It is desirable that they are set as follows. By surrounding the periphery of the connection portion between the pin terminal and the contact piece with the vertical shield plate and the horizontal shield plate, it is possible to more reliably prevent the crosstalk.

The horizontal shield plate according to the present invention can be integrally formed with each housing unit by insert molding. In this case, since the horizontal shield plate can be integrated when the housing unit is formed, both the manufacturability and the assemblability can be improved.

In each of the housing units, it is preferable that mounting holes of the contact unit are arranged at intervals in a width direction of the housing unit, and the slit is provided between the mounting holes. . By providing the slits between the mounting holes in this manner, it becomes possible for the vertical shield plates on the plug connector side to enter between the mounting holes.

It is preferable that a male-type engaging portion and a female-type engaging portion which engage with each other and couple the housing units are provided on the coupling surfaces of the housing units. The reason is that the housing unit can be easily and detachably connected without bonding the housing units by the male engagement portion and the female engagement portion.

Each of the housing units has a plurality of contact units connected to the rear end thereof. Each contact unit includes a contact group press-fitted into each mounting hole and a lead conductor for connecting each contact to the substrate. It is also desirable that a certain tail group is provided, respectively, and a part excluding the contact group and the tail group is resin-molded. With this configuration, the contact unit can be connected to the housing unit only by mounting the contact group in each mounting hole. This makes it possible to simultaneously press-fit and connect a plurality of contact groups corresponding to one horizontal row.

On the other hand, according to the manufacturing method of the present invention, there are provided a plurality of housing units which can be overlapped with each other in a plurality of stages, a shield plate provided on each housing unit, and a contact connected to a rear end of each housing unit A method of manufacturing a receptacle connector using the unit,
It includes the following first to third steps. A first step of previously integrating the horizontal shield plate and the housing unit. A second step in which housing units having shield plates are stacked in a plurality of stages, and the housing units adjacent to each other at the top and bottom are joined. A third step of press-fitting and connecting the contact unit to each housing unit from the rear end side.

According to the method for manufacturing a receptacle connector of the present invention, a plurality of housing units that can be stacked and connected to each other in a plurality of stages, a horizontal shield plate provided on each housing unit, and a rear end side connected to each housing unit These are assembled using a contact unit to be used. By integrating the horizontal shield plate and the housing unit in advance, the entire structure can be made simple and assembly can be facilitated.

In a substantial assembling operation, the housing units having the shield plates are stacked in a plurality of stages,
By adopting a method of connecting the housing units that are vertically adjacent to each other, it is possible to press-fit all the contacts in a horizontal row at the same time. Therefore, the press-fitting process of the contacts corresponds to the number of lamination stages. If the number of stacking steps is, for example, five, only five contact press-fitting steps are required. Thereby, the manufacturability can be improved by reducing the contact press-in step, and the manufacturing cost can be reduced.

In the first step, each horizontal shield plate is desirably integrally formed with each housing unit by insert molding. When this method is adopted, the horizontal shield plate can be integrated at the time of molding the housing unit, so that both the manufacturability and the assemblability can be improved.

It is desirable that a male-type engaging portion and a female-type engaging portion that engage with each other and couple the housing units are provided on the joining surfaces of the housing units. Thereby, the assembling work when sequentially stacking the housing units can be made extremely convenient.

At this time, it is desirable that the upper housing unit is slid laterally on the upper surface of the lower housing unit so that the male engagement portion and the female engagement portion are engaged with each other. Thereby, the assembling work can be further improved.

Further, the manufacturing method of the present invention is a manufacturing method of a plug connector. According to this method, a plurality of pin terminals arranged in a lattice and these pin terminals are bent by 90 degrees for connecting to a substrate. A taillet, a connection line connecting the plurality of pin terminals and the tail, and a plurality of vertical shield plates arranged in parallel with each other are overlapped and simultaneously insert-molded to form a chiclet, which is one chiclet. It is configured as a unit type. This eliminates the need to alternately press-fit the plurality of pin terminals and the vertical shield plate into the housing of the plug connector, thereby enabling a significant reduction in man-hours.

Further, according to the method for manufacturing a plug connector of the present invention, specifically, the chiclet is formed by processing a conductive metal plate and connecting to a plurality of pin terminals and a substrate.
The bent first tail, the first carrier forming the connection lines connecting the plurality of pin terminals and the tail, and the second carrier also formed by processing a conductive metal to form a vertical shield plate are laminated, and then the resin is formed. It is formed by molding and punching.

According to this, the conductive metal plate of the first carrier including the plurality of pin terminals and the second shield formed with the vertical shield plate are formed.
The first carrier and the second carrier can be firmly fixed by laminating the conductive metal plate of the carrier and resin-molding only the necessary portions, and the manufacturing process can be further reduced significantly. Performance and manufacturing costs can be reduced.

[0029]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a receptacle connector according to an embodiment of the present invention, and FIG. 2 is a perspective view of a plug connector. FIG. 3 is a perspective view showing a process of assembling the receptacle connector. FIG. 4A is a perspective view showing the rear side of the housing unit in a state where the housing unit is assembled in two stages. FIG. 4B is a perspective view of the contact unit.

In this embodiment, an example in which the present invention is applied to a board connection connector arranged between boards that form a so-called L-shaped connection in which the board surfaces intersect at right angles and electrically connects the boards to each other is provided. Is shown. This connector for board connection
It includes a receptacle connector 10 mounted on the surface of one substrate (not shown) and a plug connector 20 mounted on the surface of the other substrate (not shown).

As shown in FIG. 2, the plug connector 20 includes a housing 22 having an opening 21 into which the receptacle connector 10 is inserted, and a plurality of pin terminals 23 arranged in a lattice with respect to the housing 22. . The housing 22 has a U-shape when viewed from the side, and has an upper plate 24.
, A bottom plate 25, and a back plate 26. Housing 2
2 has a smaller width W than the height H and the length L. Therefore, in the illustrated example, the pin terminals 23 are arranged in five stages in the height direction of the housing 22 and three rows in the width direction, that is, a total of fifteen pin terminals 23 are arranged. All the pin terminals 23 are formed as square pins.

The housing 22 is entirely formed of an insulating resin, and all the pin terminals 23 pass through the rear plate 26 of the housing 22 in the thickness direction. Thereby, each pin terminal 23 is electrically insulated from each other. Guide slopes 24 for facilitating insertion of the receptacle connector 10 are provided on the top plate 24 and the bottom plate 25 of the housing 22.
a and 25a are formed.

In the housing 22, a plurality of vertical shield plates 27 constituting a plug-side shield are provided at equal intervals in the width direction of the housing 22. Each vertical shield plate 27
Are formed in a rectangular plate shape, and are arranged between the pin terminals 23 adjacent to each other in the width direction of the housing 22. Each vertical shield plate 27 is arranged vertically. Thus, the pin terminals 23 are in a form of being divided by the vertical shield plate 27 for every five pins in the vertical column (sandwiched by the vertical shield plates from both sides). Each pin terminal 23 has the same length and is formed longer than the length of the vertical shield plate 27.
The chiclet 20 press-fitted into the housing 20
0 will be described later.

Next, the receptacle connector 10 will be described. The receptacle connector 10 includes a plurality of contacts 12 having a pair of contact pieces 11 (see FIG. 4B) that electrically contact the respective pin terminals 23 of the plug connector 20, and a housing 13 that holds the respective contacts 12. (See FIG. 1). The receptacle connector 10 is provided with a plurality of horizontal shield plates 14 that are arranged in parallel with each other and that constitute a receptacle-side shield in a manner to cross the vertical shield plate 27 in a cross shape. The housing 15 and the horizontal shield plate 14 of the receptacle connector 10 are provided with slits 15 for allowing the vertical shield plate 27 to enter.

Next, these details will be described.
The housing 13 of the receptacle connector 10 has a plurality of (five-stage) housing units 131 to 1 stacked in a plurality of stages in the thickness direction of the housing 13 and connected to each other.
35. The horizontal shield plates 14 are provided integrally with the housing units 131 to 135, respectively. At the bottom of the housing 13, a bottom housing unit 130 having a horizontal shield plate 140 is provided.

Various methods can be considered as a method of integrally providing the horizontal shield plate with the housing unit. From the viewpoint of manufacturability, each horizontal shield plate 14 is integrated with each of the housing units 130 to 135 by insert molding. ing.

Since these horizontal shield plates 14 are placed horizontally, their plane area is larger than that of the vertical shield plates 27.
The plane area of each horizontal shield plate 14 is formed equally. However, each horizontal shield plate 14 is formed to have a length protruding from the rear end of each of the housing units 131 to 135.

As shown in FIG. 3, a male engaging portion 17 and a female engaging portion 18 which engage with each other to connect the housing units are provided on the connecting surfaces of the housing units. The male engaging portion 17 is provided on the front surface side of the housing units 131 to 135, and the female engaging portion 18 is provided on the lower surface side. These engagement portions engage in a so-called "hook" method, and can be easily coupled by being inserted from the side as shown in FIG.
Reference numeral 16 denotes a guide projection when the housing units are connected to each other. It should be noted that other hook structures can be adopted as the structure for this engagement.

In each of the housing units 131 to 135, mounting holes 19 for the contacts 12 are arranged at intervals in the width direction of the housing units. A slit 19 a is provided between each mounting hole 19.

The receptacle connector 10 has a plurality (five) of contact units 30 connected to the rear ends of the housing units 131 to 135, respectively. Each contact unit 30 includes a contact group 11 that is press-fitted into each mounting hole 19 and a tail group 11a that is a lead conductor that connects each contact to the board.

The contact unit 30 has a holding portion 30a in which portions other than the contact group 11 and the tail group 11a are resin-molded. The holding portions 30a of the resin mold electrically insulate the contacts 12 while holding the contacts 12 integrally in a horizontal line. The holding portion 30a is inserted tightly between the upper and lower horizontal shield plates 14,14. Thereby, each contact unit 30
Are connected to the corresponding housing unit while being stably held.

Next, the chiclet 200 will be described. As shown in FIG. 5, the chiclet 200 includes a plurality of pin terminals 23 which are main components of the plug connector 20.
A tail 23a bent at 90 degrees to connect these pin terminals to the substrate, a connection line 23b connecting the plurality of pin terminals 23 and the tail 23a bent at 90 degrees, and one vertical shield plate. 27 as a unit type. And pin terminal 23, tail 23
a, the connection line 23b and the vertical shield plate 27 are simultaneously insert-molded. Therefore, the plug connector 20
Comprises a housing 22 and a plurality (three) of chiclets 20
0.

The rear plate 26 of the housing 22 has an insertion opening 26a for the pin terminal 23 and an insertion opening 2a for the vertical shield plate 27.
6b are provided respectively. Accordingly, the plug connector 20 is configured by press-fitting each chiclet 200 into the housing 22 as shown in FIG.

When the chiclet 200 is manufactured, as shown in FIGS. 6 to 9, the first carrier 210 having the pin terminals 23, the tails 23a, and the connection wires 23b formed by processing a conductive metal plate. The second carrier 220 on which the vertical shield plate 27 is formed by processing a conductive metal plate is overlapped. Then, after forming these necessary parts by resin molding to form a molded part 201, the first carrier 210 and the second carrier 220 are cut off by punching.
The chiclet 200 shown in FIG. 10 is obtained.

When assembling the receptacle connector 10, the following method may be used. In advance, a plurality of housing units 130 to 135 which are members of the housing 13 of the receptacle connector 10, a plurality of horizontal shield plates 14 constituting the receptacle-side shield, and a plurality of contact units 30 are prepared.

Thereafter, as shown in FIGS. 3 and 4, the second-stage housing unit 132 is placed on the upper surface of the first-stage housing unit 131, and is slid to the side. The part 18 is replaced with the male engaging part 17.
And position it. Next, the third stage, the fourth stage,
By performing the same operation as in the fifth step, and finally mounting the bottom housing unit 130, the receptacle housing 13 is formed. Then, by press-fitting each contact unit 30 into each housing unit,
The receptacle connector 10 shown in FIG. 1 is obtained.

Note that these assembling steps can be performed manually, but are desirably performed using an automatic assembling machine.

[0048]

As described above, according to the present invention, the problem of the shield of the connector is solved, the crosstalk and the like are prevented from occurring, and the unitization reduces the number of assembling steps, as well as the moldability and manufacturing. Thus, the manufacturing cost can be reduced as a whole.

[Brief description of the drawings]

FIG. 1 is a perspective view of a receptacle connector according to an embodiment of the present invention.

FIG. 2 is a perspective view of the plug connector according to the embodiment of the present invention.

FIG. 3 is a perspective view showing an assembled state of the receptacle connector according to the embodiment of the present invention.

4A and 4B show an embodiment of the present invention, wherein FIG. 4A is a perspective view of the housing unit as viewed from the rear side, and FIG. 4B is a perspective view of a contact unit.

FIG. 5 is an exploded perspective view of the plug connector according to the embodiment of the present invention.

FIG. 6 is a perspective view showing a production example of a chiclet according to the embodiment of the present invention.

FIG. 7 is a perspective view showing a production example of a chiclet according to the embodiment of the present invention.

FIG. 8 is a perspective view showing a production example of a chiclet according to the embodiment of the present invention.

FIG. 9 is a perspective view showing a production example of a chiclet according to the embodiment of the present invention.

FIG. 10 is a perspective view showing a chiclet according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Receptacle connector 11 Contact piece 11a Tail 12 Contact 13 Housing 131, 132, 133, 134, 135 Housing unit 14 Horizontal shield plate 15 Slit 17 Male type engaging part 18 Female type engaging part 19 Mounting hole 19a Slit 20 Plug connector 21 Opening 22 Housing 23 Pin terminal 24 Top plate 25 Bottom plate 26 Back plate 27 Vertical shield plate (plug side shield) 30 Contact unit 200 Chiclet

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) // H01R 107: 00 H01R 23/68 303G F-term (Reference) 5E021 FA05 FA11 FA14 FA16 FB02 FB14 FC20 FC32 LA11 LA12 LA15 5E023 AA04 AA13 AA16 BB02 BB22 CC12 CC22 CC23 EE04 EE12 GG02 GG13 GG14 GG15 HH12 HH17 HH28 5E051 BA08 BB03 BB05 5E063 JB01 JB09 JB05 JB09

Claims (13)

[Claims] 1. A connector for board connection for electrically connecting boards to each other, comprising: a receptacle connector mounted on one board; and a plug connector mounted on the other board. Comprises a housing having an opening into which the receptacle connector is inserted, and a plurality of pin terminals arranged in a grid pattern with respect to the housing, wherein the receptacle connector is in electrical contact with each of the pin terminals. A plurality of contacts having contact pieces, and a housing for holding the respective contacts, wherein the plug connector is provided with a plurality of vertical shield plates arranged in parallel with each other between the pin terminals; , A plurality of horizontal shield plates arranged in parallel with each other cross the vertical shield plate in a cross shape The housing of the receptacle connector and the horizontal shield plate are provided with slits for entering the vertical shield plate, respectively, and the housing of the receptacle connector is provided in a plurality of stages in a thickness direction of the housing. A board connection connector comprising a plurality of housing units stacked and connected to each other, wherein the horizontal shield plate is provided integrally with each housing unit. 2. When each of the pin terminals and the contact piece of each of the contacts are electrically connected to each other,
The board connection connector according to claim 1, wherein each connection portion is set so as to be surrounded by the vertical shield plate and the horizontal shield plate. 3. The board connection connector according to claim 1, wherein each of the horizontal shield plates is integrally formed with each of the housing units by insert molding. 4. The housing unit, wherein mounting holes for the contacts are arranged at intervals in a width direction of the housing unit, and the slit is provided between the mounting holes. PCB connection connector. 5. The housing unit, wherein mounting holes of the contact unit are arranged at intervals in a width direction of the housing unit, and the slit is provided between the mounting holes. The board connection connector as described. 6. The board according to claim 1, wherein a male-type engaging portion and a female-type engaging portion that engage with each other and couple the housing units are provided on the coupling surfaces of the housing units. Connector for connection. 7. A plurality of contact units respectively connected to a rear end side of each housing unit, wherein each contact unit connects a contact group press-fitted into each of the mounting holes and each contact to a substrate. The board connection connector according to claim 1, wherein each of the plurality of tail groups is a lead conductor, and a portion excluding the contact group and the tail group is resin-molded. 8. A receptacle using a plurality of housing units that can be stacked and connected to each other in a plurality of stages, a horizontal shield plate provided in each housing unit, and a contact unit connected to a rear end of each housing unit. A method of manufacturing a connector, comprising: a first step of pre-integrating the horizontal shield plate and the housing unit; and housing units adjacent to each other vertically while stacking a plurality of housing units provided with the shield plate. And a third step of press-fitting and connecting a contact unit to each of the housing units from the rear end side thereof. 9. The method for manufacturing a receptacle connector according to claim 8, wherein in the first step, the horizontal shield plate and the housing unit are integrated by insert molding. 10. A male-type engaging portion and a female-type engaging portion which engage with each other and couple the housing units together are provided on the coupling surfaces of the housing units.
A method for manufacturing the receptacle connector described above. 11. The receptacle connector according to claim 10, wherein the male-type engaging portion and the female-type engaging portion engage with each other by sliding the upper housing unit to the side on the upper surface of the lower housing unit. Manufacturing method. 12. In the plug connector, the plurality of pin terminals and a plurality of pins for connecting each pin terminal to a substrate.
A method of manufacturing a plug connector, wherein a tail bent at 0 degrees, a connection line connecting each pin terminal and each tail, and the vertical shield plate are chiclets simultaneously insert-molded as one unit type. 13. The chiclet is formed by processing a conductive metal plate, forming the pin terminal, the 90-degree bent tail, and the first carrier on which the connection wire is formed. 13. The method for manufacturing a plug connector according to claim 12, wherein the second connector is formed by superimposing the second carrier on the second carrier, followed by resin molding and punching.