JP3734217B2 - Connector and board used for connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to a connector mounted on a printed wiring board, and particularly to a connector provided with a contact connected to a conductive portion mounted on a board such as a printed wiring board.
[0002]
[Prior art]
As shown in FIGS. 18 to 22, the conventional connector 11 has an insulator 13 and a plurality of conductive contacts 15 arranged in two rows at predetermined intervals in a direction orthogonal to the longitudinal direction of the insulator 13. is doing.
[0003]
The insulator 13 has a plate-shaped base portion 13a and a pair of holding wall portions 13b that are erected from the base portion 13a. The base portion 13a has an installation surface 13d mounted on a substrate such as a printed wiring board. The pair of holding wall portions 13b are erected on one surface from one surface of the base portion 13a opposite to the installation surface 13d.
[0004]
The contact 15 is opposed to the outer surface of the pair of holding wall portions 13d and is held by the insulator 13, and the contact portion 15b is connected to one end of the holding portion 15a and extends from the upper surface of the holding wall portion to the inner surface. And a terminal portion 15c connected to the other end of the holding portion 15a and extending from the outer surface of the holding wall portion 13b to substantially the same surface as the installation surface 13d of the base portion 13a.
[0005]
Between the pair of holding wall portions 13b is a fitting portion 13e that fits with a mating connector (not shown). A mating fitting portion having a plurality of conductive mating contacts connected to the contacts 15 on a one-to-one basis is fitted into the mating connector.
[0006]
As shown in FIG. 23, the connector 11 is manufactured by continuous pressing using a thin strip-shaped conductive plate 215 as a base material at a pitch interval equal to the pitch of the contacts 15 arranged in the longitudinal direction of the conductive plate 215. The contact 15 is assembled to the insulator 13 in a state where the terminal portion 15 c to be soldered is connected to the carrier 235.
[0007]
The connector 11 is mounted on the substrate 31 shown in FIG. At this time, the terminal portion 15 c is connected to a plurality of conductive pads (conductive portions) 33 provided on one surface of the substrate 31 by one-to-one soldering. The pads 33 have the same area so as to correspond to the terminal portions 15c.
[0008]
[Problems to be solved by the invention]
However, when the mating fitting portion of the mating connector is inserted into the fitting portion 13e, the terminal portion 15c to which the contact 15 is soldered receives the insertion / extraction force at the time of fitting. Depending on the number, the soldered portion where the terminal portion 15c and the pad 33 are soldered and connected may be damaged.
[0009]
Further, an FPC (Flexible Printed Circuit) may be adopted as the substrate 31. In this case, there is a possibility that particularly soldered portions at both ends of the connector 11 may be damaged due to the flexibility of the FPC.
[0010]
As a means for solving such a problem, there is a method in which another component is provided on the contact 15 at both ends of the connector 11 and this component is reinforced by soldering to the substrate 31, but this increases the number of components. There is a problem of end.
[0011]
Therefore, an object of the present invention is to provide a connector capable of reducing the number of parts and improving the soldering strength.
[0012]
[Means for Solving the Problems]
According to the present invention, an insulator mounted on a substrate and a plurality of conductive contacts held by the insulator, the contact being connected to a conductive mating contact provided in a mating connector, and the insulator And a contact portion connected to the conductive portion of the substrate , and further, the contact of the terminal portion from a state where the contact made of the conductive plate is connected to a carrier made of the conductive plate. In the connector made by cutting the end portion from the carrier , each of the terminal portions has the same shape, and at least one set of the terminal portions connected between at least two adjacent terminal portions. a, a pair of said terminal portion, with each other by a connecting portion which is a part of the carrier that left when cutting from the carrier Connector is obtained, wherein the being.
[0013]
In addition, according to the present invention, the connector is mounted and the set of terminal portions including the connecting portion and the plurality of conductive portions connected to the terminal portions excluding the set of the terminal portions in a one-to-one manner by soldering are provided. And corresponding to the terminal portions excluding the set of terminal portions so that the conductive portion facing the set of terminal portions including the connecting portion corresponds to the area of the set of terminal portions including the connecting portion. A substrate having an area larger than the area of the conductive portion is obtained.
[0014]
[Action]
According to the connector of the present invention, in the carrier cutting step, the area of the terminal portion on both end sides of the insulator is increased, or the connecting portion that connects the two terminal portions is formed in the pressing step, and on the both end sides in the longitudinal direction. The two terminal portions are fixed to the conductive pads of the printed wiring board by soldering.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a connector according to the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment of a connector according to the present invention.
[0016]
The same reference numerals are given to the same portions as those of the connector 11 described in FIGS. 18 to 23, and the following embodiments will be described.
[0017]
Referring to FIGS. 1 to 5, the connector 11 includes a long box-shaped insulator 13 and a plurality of arrays arranged so as to face each other in two rows at a predetermined interval in a direction orthogonal to the longitudinal direction of the insulator 13. And a conductive contact 15.
[0018]
The insulator 13 includes a long plate-shaped base portion 13a and a pair of holding wall portions 13b that are erected in the longitudinal direction of the base portion 13a and on the base portion 13a. The base portion 13a has an installation surface 13d mounted on a board such as a printed wiring board (not shown). The pair of holding wall portions 13b are erected on one surface from one surface of the base portion 13a opposite to the installation surface 13d.
[0019]
The contacts 15 are opposed to the outer surfaces of the pair of holding wall portions 13b along the holding wall portions 13b and are held by the insulator 13, and are connected to one end of the holding portion 15a to be connected to the holding wall portion 13b. A contact portion 15b extending from the upper surface of the holding wall portion 13b and extending to the inner surface of the holding wall portion 13b, and a surface that is connected to the other end of the holding portion 15a and is substantially the same as the installation surface 13d of the base portion 13a from below the holding wall portion 13b Terminal portions 15c and 15d extending to the bottom.
[0020]
Between the pair of holding wall portions 13b, there is a fitting portion 13e that fits with a mating connector (not shown). The connector 11 is fitted with a mating fitting portion (not shown) having a plurality of conductive mating contacts connected to the plurality of contacts 15 on a one-to-one basis.
[0021]
Each of the terminal portions 15c and 15d of the contact 11 has the same shape, and at least a pair of adjacent terminal portions 15d are connected by a connecting portion 15m . The connecting portion 15m uses a part of a carrier described later. Since the set of terminal portions 15d includes a connecting portion 15m extending from the end of the terminal portion 15d, the individual areas of the set of terminal portions 15d are the terminal portions 15c excluding the set of terminal portions 15d. It is substantially larger than the individual area. That is, in the contact 15 shown in FIG. 1 and FIG. 4, a pair of terminal portions 15d each composed of two adjacent terminal portions 15d arranged on both ends in the longitudinal direction of the insulator 13 are connected by a connecting portion 15m. Yes.
[0022]
In the connector 11 in this embodiment, the connecting portion 15m is connected to the two terminal portions 15d at both ends in the arrangement direction of the terminal portions 15c and 15d arranged in the insulator 13. The terminal portion 15d is not limited to two, and two or more terminal portions 15d may be connected by a connecting portion 15m.
[0023]
By the way, as shown in FIGS. 6 and 7, the contact 10 has a thin strip-shaped conductive plate 21 as a base material, and has the same pitch interval as the arrangement interval of the contacts 15 in the longitudinal direction of the conductive plate 21. terminal portion 15c by continuously pressing the ends of 15d is manufactured in a state that led to the carrier 23 is a conductive plate 21.
[0024]
The contact 15 is assembled to the insulator 13 in a state where the terminal portions 15 c and 15 d to be soldered are connected to the carrier 23. At the time of cutting for separating the contact 15 from the carrier 23, the terminal portion 15d is so formed that the area of the terminal portion 15d is substantially larger than the terminal portion 15c where the contacts 15 on both ends in the longitudinal direction are located at the intermediate portion. The cutting position is changed.
[0025]
In this case, by the connecting portion 15m, leaving part of carrier 23 that is connected to an end portion of the terminal portion 15d, the total in the embodiment of the two terminal portions 15d (performed in both ends four terminal portions 15d The cutting position of the terminal portion 15d is changed so that the area is larger than the terminal portion 15c of the contact 15 in the middle portion . In short, as shown in FIG. 7 , it cut | disconnects so that the two terminal parts 15d of both ends may be connected.
[0026]
As shown in FIG. 5, the connector 11 is shown in FIG. 7 in a state where the connector 11 is press-fitted into the holding wall portion 13 b of the insulator 13 so that the holding wall portion 13 b is sandwiched between the holding portion 15 a and the contact portion 15 b of the contact 15. The broken lines A and B are cut to obtain the configuration of the connector 11 shown in FIG. In this case, a total of eight terminal portions 15d of the two terminal portions 15d on both end sides of the connector 11 formed of the two rows of contacts 15 are connected to each other by the connecting portions 15m.
[0027]
A plurality of through holes 25 are formed on one side of the conductive plate 21 in the width direction of the carrier 23 as shown in FIG. As shown in FIG. 7, the through hole 25 is located outside the connecting portion 15 m of the terminal portion 15 d on both end sides . When cut, a portion 15n plated on the surface of the connecting portion 15m is configured. The press in this case may be a normal continuous press in which the same shape is arranged in the pitch direction as shown in FIG.
[0028]
FIG. 8 shows a board such as a printed wiring board suitable for the connector 11 and the connector 11 mounted on the board. On one surface of the substrate 31, a pad (conductive portion) 32 is formed to be large in accordance with the shape of the terminal portion 15 d on both ends fixed by soldering at both ends, and a pad 33 is formed in accordance with the shapes of the other terminal portions 15 c. And have. The other pads 33 have substantially the same width as the intermediate terminal portion 15c. Therefore, the pad 32 having a large shape serves to improve the fixing strength by soldering the terminal portion 15d and the connecting portion 15m because the area of the pad 32 increases.
[0029]
After the connector 11 is mounted on the substrate 31 shown in FIG. 8, the terminal portions 15c and 15d are connected to a plurality of conductive pads 32 and 33 provided on one surface of the substrate 31 by soldering one to one. The When the terminal portions 15c and 15d and the pads 32 and 33 of the substrate 31 are connected to each other by soldering, the fixing area between the terminal portion 15d and the pads 321 is particularly large, so that the insulator 13 is fixed to the substrate 31. It can also be used as a reinforcing member.
[0030]
9 to 13 show a second embodiment of the connector of the present invention. The same parts as those of the connector 11 in the first embodiment shown in FIGS. 1 to 5 are denoted by the same reference numerals and the description thereof is omitted.
[0031]
In the second embodiment, it is manufactured by continuous pressing at the same pitch as the pitch of the contacts 15 assembled to the insulator 13. The contact 15 is assembled to the insulator 13 with the terminal portion 15c to be soldered connected to the carrier 231 as shown in FIGS. After the assembly, the terminal portion 15c fixed by soldering is separated from the carrier 231 and manufactured.
[0032]
In the press in this example, the connecting portion 15p is configured by a pressing process so that at least two terminal portions 15d on both ends of the insulator 13 are connected by the terminal portions 15d for soldering in accordance with the number of cores of the contact 15. To do. This pressing process is manufactured by, for example, a press manufacturing method using a solenoid.
[0033]
FIG. 13 shows a state in which the contact 15 is press-fitted into the insulator 13, and a configuration of the connector 11 in FIG. 12 is obtained by cutting along the broken line portions A and B shown in FIG. 15. In this case, the connector 11 is composed of two rows of contacts 15, and a total of two terminal portions 15d on both ends are connected to each other at the connecting portion 15p by two terminal portions 15d. It is.
[0034]
Further, as shown in FIG. 15, a through hole 27 is formed outside the connecting portion 15p connecting the two terminal portions 15d at both ends, and when cut, the terminal portion 15d is plated. A portion 15r is formed.
[0035]
That is, at least two terminal portions 15d of the connector 11 are constituted by connecting portions 15p connected to each other, and the two terminal portions 15d at both ends are connected by shearing at the same cutting location as the terminal portion 15c of the intermediate portion.
[0036]
A substrate suitable for the connector 11 is shown in FIG. The shapes of the pads 321 and 33 provided on the substrate 31 are large in accordance with the shapes of the two terminal portions 15d to be soldered and fixed at both ends. As described above, since the pads 321 at both ends are connected to the pair of terminal portions 15d connected by the connecting portions 15p at a large area portion, the area for connection is also increased, so that the fixing strength by soldering is increased. improves. Moreover, since the dimension of the terminal part 15d of both ends may be the same dimension as the terminal part 15c of an intermediate part, the connector 11 does not become large in the up-down direction of FIG.
[0037]
FIG. 17 shows the substrate 31 in which the pads 322 of the substrate 31 are configured to be large so that both ends in the longitudinal direction straddle the two terminal portions 15d. That is, the substrate 31 is a substrate 31 to which the connector 11 having a plurality of contacts 10 is soldered and connected by surface mounting, and the pad 322 of the substrate 31 is enlarged so as to straddle at least two terminal portions 15d at both ends in the longitudinal direction.
[0038]
In the case of this example, the number of cores of the contact 15 is configured by adding four cores to the required number of cores. With this configuration, even in the conventional connector 11 as shown in FIGS. 18 to 22, if the pads 322 at both ends of the substrate are large, the number of contacts 15 at this portion becomes two, so that the soldering strength is high. improves.
[0039]
As described above, in the case of soldering using two of the plurality of contacts 15, since the lines on both ends become the two terminals of the contacts 15, the current capacity of the connector 11 is also doubled. It can be used as a terminal portion 15d for large current such as a power supply.
[0040]
【The invention's effect】
As described above, according to the connector of the present invention and the board used for the connector, each of the terminal parts is the same so as to be connected to the conductive part of the board and also used as a reinforcing member when fixing the insulator to the board. a shape, has been connected by a connecting portion which is a part of the carrier left between a pair of terminal portions at least adjacent to the time of cutting of the carrier, the individual areas of the pair of terminal portions including a connecting portion one Since it is substantially larger than the individual areas of the terminal portions excluding the pair of terminal portions, it can be firmly soldered to the conductive portion of the substrate, and the fixing strength can be improved without increasing the number of other components.
[0041]
Moreover, if many parts plated on the terminal portion and the connecting portion are configured, the soldering strength is further improved. Therefore, the width dimension of the connector is not increased.
[0042]
Also, if the number of cores of the connector is increased at both ends and the pad of the board is enlarged so as to extend over at least two terminal portions at both ends in the longitudinal direction, the soldering strength is improved.
[0043]
In addition, since there are two contacts, in the case of soldering, the terminal line on both sides is equivalent to two terminals of the contact, so the current capacity of the connector is doubled, and a large current such as power supply It can be used as a terminal part.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of a connector according to the present invention.
FIG. 2 is a front view of the connector shown in FIG.
FIG. 3 is a side view of the connector shown in FIG.
4 is a rear view of the connector shown in FIG. 1. FIG.
5 is an enlarged cross-sectional view of the connector shown in FIG.
6 is a rear view showing a state in which a contact connected to a carrier is press-fitted into the insulator shown in FIG. 1. FIG.
FIG. 7 is a rear view showing an enlarged main part of FIG. 6;
FIG. 8 is a plan view showing a board suitable for the connector shown in FIG. 1;
FIG. 9 is a plan view showing a second embodiment of the connector according to the present invention.
10 is a front view of the connector shown in FIG. 9. FIG.
11 is a side view of the connector shown in FIG. 9. FIG.
12 is a rear view of the connector shown in FIG. 9. FIG.
13 is an enlarged cross-sectional view of the connector shown in FIG.
14 is a rear view showing a state in which a contact connected to a carrier is press-fitted into the insulator shown in FIG. 9. FIG.
FIG. 15 is a rear view showing an enlarged main part of FIG. 14;
16 is a plan view showing a board suitable for the connector shown in FIG. 9; FIG.
17 is a plan view showing a modification of the pad of the substrate shown in FIG. 16. FIG.
FIG. 18 is a plan view showing a conventional connector.
FIG. 19 is a front view of the connector shown in FIG.
20 is a side view of the connector shown in FIG. 18. FIG.
FIG. 21 is a rear view of the connector shown in FIG. 18;
22 is an enlarged cross-sectional view of the connector shown in FIG.
FIG. 23 is a rear view showing the conventional connector shown in FIG. 18 and showing a state in which a contact connected to a carrier is press-fitted into an insulator.
24 is a plan view showing a board mounted on the connector shown in FIG. 18. FIG.
[Explanation of symbols]
11 Connector 13 Insulator 15 Contact 15b Contact 15c, 15d Terminal 15m, 15p Connection 23, 231, 235 Carrier 31 Substrate 32, 321, 322 Pad (conductive part)

Claims (5)

An insulator mounted on the substrate; and a plurality of conductive contacts held by the insulator; wherein the contact is connected to a conductive mating contact provided in the mating connector; and a holding section held by the insulator And a terminal portion connected to the conductive portion of the substrate ,
Furthermore, in the connector, the contact is made by cutting the end of the terminal portion from the carrier from a state where the contact made of the conductive plate is connected to a carrier made of a conductive plate ,
Each of the terminal portions has the same shape, and has at least one set of the terminal portions connected between at least two adjacent terminal portions,
The pair of terminal portions are connected by a connecting portion that is a part of the carrier left when the carrier is cut from the carrier . 2. The connector according to claim 1, wherein the individual areas of the set of the terminal portions are substantially larger than the individual areas of the terminal portions excluding the set of the terminal portions by including the connecting portion. connector, characterized in that is.   3. The connector according to claim 1, wherein the connecting portion connects at least two terminal portions on both end sides in the arrangement direction of the terminal portions arranged on the insulator. 4.   3. The connector according to claim 1 or 2, wherein the connecting portion (15m or 15p) is plated. 5. The board connected to the connector according to claim 1, wherein the connector is mounted and the terminal part including the connecting part and the terminal part excluding the pair of terminal parts and the pair. A plurality of conductive portions connected by solder, and the conductive portions facing the set of terminal portions including the connecting portion correspond to an area of the set of terminal portions including the connecting portion. A board having an area larger than an area of the conductive part corresponding to the terminal part excluding the terminal part of the set.

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