JP2002246077A - Connector for high-speed transmission and connection method for lead wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high-precision connector miniaturized by arranging contacts with high density, and having a small transmission path difference, and provide a connecting method or a lead wire having high reliability regarding connection. SOLUTION: This connector is so structured as to arrange the contacts 2 in a shell 4 into a double structure, having upper and lower tires and to have holders 6 and 7 comprising upper and lower tiers for holding the contacts 2. One-side connection piece of the contacts 2, adjacent to each other, is set at a position displaced downward in the height direction of a housing 3 with respect to a contact piece 25, and the other-side connection piece of the contacts 2, adjacent to each other, is set at a position displaced upward, in the height direction of the housing 3 with respect to the contact piece 25. The contacts 2, having the same shape, are used and formed into a parallel structure. The contacts 2 are welded to the lead wires 1, by putting electrodes X and Y from both the bark of a connection end part 24 and the lead wire 1 part positioned at an electrode insertion hole 9a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a lead wire, an electric wire,
The present invention relates to a high-speed transmission connector used for electrical connection with a printed circuit board and the like and a method for connecting the connector.

[0002]

2. Description of the Related Art In recent years, with the rapid progress of electronics technology, awareness of technological innovation in the field of electronic devices has been increasing. In electronic devices, in particular, connectors that electrically connect electronic circuits such as printed circuit boards, lead wires, electric wires, and cables, which are scattered inside the device, are attracting attention as important targets that are subject to the technical innovation.

[0003] As a technique related to a connector, there are a connection technique of a connector in which connectors are fitted to each other in order to electrically connect lead wires to each other, and a connector connection technique of connecting the lead wire to the connector.

[0004] In the connector technology, there are many uses inside the device, so that its size and density have to be increased, the speed of connection of communication and transmission cables and the like has to be increased, and the accuracy of electrical connection has to be high. , High reliability is an issue.

Regarding such connectors, various types of connectors have been proposed in view of their applications. As a connection technique of the connector, for example, Japanese Patent Application Laid-Open No. 08-33
Japanese Patent Laid-Open Publication No. 0004 describes a connector connection structure in which a lead wire and a flat cable are integrally formed with a holder and fitted and connected to a connector base.

[0006] Japanese Patent Application Laid-Open No. 06-60946 discloses a board connector that can be surface-mounted on a circuit board such as a printed circuit board. The connector with the density is described. This type has a structure in which connectors are fitted coaxially.

[0007] In addition, the connection technology of the connector includes:
There are connection methods such as pressure welding which is non-heating connection, soldering which is heating connection, and welding. Among them, there are several techniques for welding depending on the heating method. For example, Patent 2940
No. 897 discloses beam welding, and JP-A-07-70345.
In this publication, ultrasonic welding is described, and in JP-A-09-330778, electrode welding is described.

[0008]

However, in the case of the above-described conventional connector connection technology, the following problems have occurred.

If the pitch (arrangement interval) is narrowed (fine pitch) in a state where the lead wires and the contacts are arranged in parallel in order to reduce the size of the connector, the members in the connector must be made even smaller. Instead, it requires high precision and advanced technology, and the processing operation is complicated.

In the connector connection structure disclosed in JP-A-08-330004, both a lead wire and a flat cable are mounted on a holder, and are constituted by a lead holder, a flat cable holder, and a connector base.
This configuration is not compatible with downsizing and downsizing.

In view of the above, there has been a conventional connector connection technique in which the contacts in the connector are arranged in the upper and lower tiers to achieve a fine pitch and a miniaturization. In the case of a double structure, when the upper and lower contacts are gathered and connected at one place, the electrical conduction path lengths of the upper and lower contacts differ. For this reason, the electric conduction path length of the current path differs depending on the upper and lower contacts, and a transmission path difference (SKEW) occurs. As a result, the reliability of the connector decreases.

In a surface mount connector disclosed in Japanese Patent Application Laid-Open No. H06-60946, which is an example of a structure aimed at miniaturization, the arrangement of contacts in the connector has a double structure, and the upper and lower contacts are bent. And assembled and bonded to a substrate (shown in FIGS. 17 to 19). Therefore, the shape of the contact is complicated because the contact is bent and formed a plurality of times. Further, as shown by the current conducting paths β and γ in FIGS. 18 and 19, the current conducting path length of the contact becomes long due to the bending a plurality of times. Further, since contacts having different shapes are required in the upper and lower stages, the number of parts increases accordingly.

On the other hand, the following problems have occurred in the above-described conventional connector connection technology.

In the non-heating connection method using the pressure contact, the contact has a shape in which the lead wire is sandwiched from both ends, so that extra space is required and the pitch between the poles inside the connector is increased. Therefore, it is not suitable for downsizing the connector.

[0015] Heating connection is generally performed by soldering. However, in the soldering method, it is necessary to peel off a large number of thin ends of the lead wire without damaging the conductor. However, it requires a great deal of work (shown in FIG. 20).

In Japanese Patent Application Laid-Open No. 07-70345, ultrasonic welding is used as a connection method. In ultrasonic welding, vibration is given by ultrasonic waves, and welding is performed by heat generated by the vibration, so that it takes time to complete welding.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. It is an object of the present invention to reduce the size of a contact by arranging it at a high density and to achieve a high precision with a small transmission path difference. To provide a simple connector.

Another object of the present invention is to provide a method for connecting lead wires with high reliability in connection with a connector.

[0019]

In order to achieve the above object, the present invention relates to a high-speed transmission connector in which a plurality of contacts arranged in a housing are set to have the same electrical conduction path length. Each contact is arranged side by side so as to have an interval in the width direction of the housing, and each contact is in contact with a fixing piece for the housing, a lead connecting piece connected to a lead wire of the connector, and a contact of a mating connector. Contact pieces that are electrically connected to each other, and among the contacts, the lead connection piece of one of the adjacent contacts is set at a position displaced downward in the height direction of the housing with respect to the contact piece, and is adjacent to the contact piece. The lead connecting piece of the other contact is set at a position displaced upward in the height direction of the housing with respect to the contact piece, and Of over de connection piece, a displacement amount with respect to the contact pieces are both set equal. (Corresponding to claim 1)

According to this configuration, the contact has a simple shape which only needs to be displaced once between the contact piece and the lead connection piece, and therefore, the electrical conduction path length of the contact is short. This leads to downsizing of the connector.

It is preferable that the contact pieces of each of the contacts are located at an intermediate portion in the height direction of the housing and are arranged in a line at intervals in the width direction of the housing. (Corresponding to claim 2)

According to this structure, the contact pieces in the shells of the connector and the mating connector have a simple parallel shape in a horizontal row, so that a more accurate connector connection is possible.

The housing includes a holder for holding each of the contacts. The holder includes an upper holder and a lower holder which are vertically overlapped with each other in the height direction of the housing. It is desirable that the contact is fixed to the upper holder and the other contact is fixed to the lower holder. (Corresponding to claim 3)

According to this configuration, since the contacts of the same shape are used for both the upper and lower holders, the electric conduction path lengths of the upper and lower contacts are equal, and the current paths are equal. Therefore, the accuracy and reliability of the connector do not decrease due to the transmission path difference (SKEW) caused by the difference in the length of the electric conduction path, and the connector of the present invention can be made highly accurate and highly reliable.

It is desirable that all the contacts have the same shape, and that the contacts fixed to the upper holder are arranged upside down with respect to the contacts fixed to the lower holder. (Corresponding to claim 4)

By using the contacts having the same shape in the upper and lower stages, only one type of contact may be formed in the manufacturing process, so that the number of parts can be reduced, and the manufacturability of the contacts can be improved and the cost can be reduced. .

[0027] A method for connecting a lead wire according to the present invention is a method for connecting a lead connecting piece of a contact to a lead wire, wherein a tip of a connection end provided on the lead connecting piece is coated on the lead wire. Abutting, and applying a welding current by applying one of the welding electrodes to the lead connection piece and applying the other of the welding electrodes to the coating of the lead wire. (Corresponding to claim 5)

Further, it is effective that the lead wire is held by a lead holder arranged in the housing, and the lead holder is provided with an insertion opening for the other welding electrode. (Corresponding to claim 6)

According to this method, since the contact and the lead wire can be directly welded, there is no need for a step of peeling off the covering portion of the lead wire to expose the conductor. Accordingly, the contact and the lead wire can be melted and connected in a short time in a stable manner.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention thereto unless otherwise specified. Absent.

In the following drawings, the same reference numerals are given to members described in the drawings used in the above description of the related art and members similar to the members described in the drawings described above.

A connector according to an embodiment of the present invention will be described with reference to FIGS.

FIGS. 1 to 5 show the entirety of a connector according to an embodiment of the present invention. 1 and 3 are a perspective view and a sectional view, respectively, of the entire connector according to the embodiment of the present invention.

C is the connector of this embodiment, 1 is the connector C
2 is a contact connected to the lead wire 1, 3 is a connector housing, 4 is a shielding metal shell for protecting a fitting portion of the connector C with the mating connector 30, and 5 is An accommodating portion for the lead wire 1 to be wired, 6 is an upper holder for accommodating the contacts 2 arranged in the upper portion of the connector C, 7 is a lower holder for accommodating the contacts 2 arranged in the lower portion of the connector C, and 8 is connected. Reference numeral 9 denotes a lead holder for holding the lead wire 1, and reference numeral 9 a denotes an electrode Y insertion port for applying the electrode Y to the lead wire 1.

As shown in FIG. 1, a substantially rectangular cylindrical shell 4 electrically connected to a mating connector 30 is provided at one end of a substantially rectangular cylindrical housing 3 of the connector C, and a connector is provided at the other end. A substantially cylindrical lead accommodating portion 5 in which a lead wire 1 connected to C is wired is provided. Further, a holder for arranging the contacts 2 connected to the lead wires 1 is provided inside the shell 4.

The holder has a double structure consisting of upper and lower stages, and is composed of an upper holder 6 and a lower holder 7. The upper holder 6 and the lower holder 7 hold the contacts 2 in an aligned arrangement.

FIG. 6 is a perspective view showing a state where the contact 2 is mounted on the holder. In this embodiment, the lower holder 7 will be described as an example. First, a fitting concave portion 11 into which a mating connector 30 to be connected is inserted, and a lead holder disposing portion 12 for disposing the lead holder 9 in the holder are formed in the lower-stage holder 7 having a substantially rectangular parallelepiped shape, leaving the central portion 10 of the holder. At both ends in the short direction of the fitting concave portion 11, a concave portion 13 and a convex portion 18 which are mutually fitted with the opposing connector 30 are formed.

Further, a groove-like insertion opening 14 to be inserted when the contact 2 is arranged is provided in the lead holder arrangement portion 12.
Is provided. The insertion opening 14 is formed by a groove extending in the short direction of the lead holder arrangement portion 12. Insertion port 1
4, an insertion hole 15 penetrating from the insertion port 14 to the surface on the mating side of the mating connector 30 is also provided. The insertion hole 15 is an insertion hole for the third fixing piece 22 of the contact 2 when the contact 2 is arranged and fixedly held in the lower holder 7, and the hook 27 of the third fixing piece 22 bites into the inner wall surface thereof. Care is taken to prevent the contact 2 from coming off.

The center 10 has a first contact 2
A contact insertion groove 16 into which the fixing piece 20 is inserted to hold the contact 2, and a second insertion groove 17 into which the second fixing piece 21 of the contact 2 arranged in the upper holder 6 is inserted are the same as the insertion opening 14. Formed in the direction. Further, the second fixing piece 21 is fixed to the inner wall surface of the second insertion groove 17.
Of the contact 2 is prevented.

The upper holder 6 has the same structure as the lower holder 7 except for a convex portion 18 fitted into the concave portion 13.
The upper holder 6 and the lower holder 7 are positioned and fitted so as to face each other, and the holder has a double structure.

Next, FIG. 3 is a sectional view showing a state where the contacts 2 are arranged in the connector C. The lead wire 1 is inserted into and held by the lead holder 9 in the holders 6 and 7. The lead wire 1 and the contact 2 are connected in the holder.

FIG. 7 is a front view showing the entire contact 2. Reference numeral 20 denotes a first fixed piece on which the contact 2 is held on the holder center portion 10, reference numeral 21 denotes a second fixed piece to be inserted into the other counterpart holder facing the holder on which the contact 2 is arranged, and reference numeral 22 denotes the contact 2 A third fixing piece inserted into the holder when is disposed on the holder, a lead connecting piece 23 having a connection end 24 and connected to the lead wire 1;
24 is a connection end connected to the lead wire 1, 25 is a contact piece when electrically connected to the mating connector 30, and 26 is a retaining piece when the second fixing piece 21 is inserted into the mating holder. The hook 27 is a hook for preventing the third fixing piece 22 from coming off when it is inserted into the holder.

FIG. 7 shows the direction in which the contact 2 is mounted on the upper holder 6. Since the contacts 2 have the same shape for both the upper and lower holders, the lower holder 7
7 is used by inverting the contact 2 shown in FIG. FIG. 8 shows this state.

The contact 2 is electrically connected to the fixing pieces 20, 21, 22 for the holders 6, 7, the lead connecting piece 23 connected to the lead wire 1 of the connector C, and the contact of the mating connector 30. The contact piece 25 is formed as a main part. Of the contacts C, the lead connection piece of one adjacent contact 2 is set at a position displaced downward in the height direction of the housing 3 with respect to the contact piece 25, and the lead connection piece of the other adjacent contact 2 is set to the contact piece. It is set at a position displaced upward in the height direction of the housing 3 with respect to 25. The amount of displacement of the lead connection piece of each contact 2 with respect to the contact piece 25 is set equally.

According to this configuration, the contact 2 has a simple shape which only needs to be displaced once between the contact piece 25 and the lead connection piece 23. Therefore, the length of the electric conduction path α of the contact C is reduced. It can be shorter, which leads to downsizing of the connector.

Next, the details of the contact 2 will be described.
In this embodiment, the shape of the contact 2 mounted on the upper holder 6 will be described as an example. A first fixing piece 20 is provided at one end, and the center of the contact 2 is set, and the vertical direction (downward in FIG. 7)
Fixed piece 21 inserted into lower holder 7 at the other end of
Is provided. A third end inserted into the upper holder 6 at one end in the horizontal axis direction (left direction in FIG. 7) with the first fixing piece 20 as a base point.
The fixing piece 22 is protruded. At the other end (to the right in FIG. 7), a lead connection piece connected to the lead wire 1 is projected. The tip of the lead connection piece 23 has a pointed shape, and the lead wire 1
Is provided with a connection end 24 to be inserted into the connection end. Then, a contact piece 25 to be electrically connected to the mating connector 30 is protruded from an intermediate position between the first fixed piece 20 and the second fixed piece 21 in the same direction as the third fixed piece 22.

The contact 2 is formed by punching a metal plate or the like.

The contact 2 having the above shape is inserted from the insertion opening 14 of the lower holder 7. And the third of contact 2
The fixing piece 22 is inserted into the insertion hole 15. Here, a hook 27 is provided on the third fixing piece 22, and the hook 27 bites into the inner wall surface of the insertion hole 15 and the third fixing piece 22
Is considered so that it can be prevented from falling out. Third fixing piece 2
The contact 2 is prevented from coming off and fixed.
And the contact 2 is positioned in the axial direction and is stabilized.

The first fixing piece 20 of the contact 2 is inserted into the first insertion groove 16 and arranged. As a result, the contact 2 is arranged at a position as shown in FIG. In this state, the contact piece 25 is located on the fitting recess 11, and the connection end 24 is
2 is located in the insertion opening 14. The lead holder 9 holding the lead wire 1 is mounted from the direction facing the connection end 24, and the lead wire 1 and the contact 2 are electrode-welded. The details of the method of connecting the lead wire 1 and the contact 2 will be described later.

At this time, the second fixing piece 21 protrudes toward the opposing upper holder 6 and is inserted into the second insertion groove 17 of the upper holder 6 when the holders 6 and 7 are combined. Here, a hook 26 is provided on the second fixing piece 21, and care is taken so that the hook 26 bites into the inner wall surface of the second insertion groove 17 and the second fixing piece 21 is prevented from coming off. When the second fixing piece 21 is retained and fixed, the contact 2 is positioned in the vertical direction, and the holders 6 and 7 are also positioned in the vertical direction, so that they can be easily combined. The holders 6 and 7 are fitted with the concave portions 13 and the convex portions 18.

The provision of the second fixing piece 21 on the contact 2 allows easy positioning when assembling the holder having the double structure. Further, the fixing strength of the upper holder 6 and the lower holder 7 is strengthened by the fitting of the second fixing piece 21 and the second insertion groove 17 and the fitting of the hooks.

The upper and lower contacts 2 shown in FIG.
FIG. 9 is a sectional view showing a state where is connected to the lead wire 1.
It is. The current from the lead wire passes through the contact from the connection end 24 and is connected to the mating connector 30 from the contact piece 25. The current path in the contact 2 is
From the connection end 24 to the contact piece 25, and the current conduction path length of the contact 2 is simple and short as shown by the current conduction path α (solid line with arrow) in FIG.

At this time, the lengths of the electric conduction paths of the upper and lower contacts 2 are uniform since they have the same shape, so that the current paths are also uniform.

As shown in FIGS. 18 and 19, in the conventional example, as a result of bending the contact, as shown by the current conduction paths β and γ (solid lines with arrows) in FIGS. Although it has to be complicated and long, the contact 2 can have a simple and short current conduction path α as compared with the conventional example. As a result, connector C
This is effective for downsizing.

Further, since the contacts 6 having the same shape are used for the holders 6 and 7, the electric conduction path lengths of the upper and lower contacts 2 are equal, and the current paths are equal lengths. For this reason, the accuracy and reliability of the connector do not decrease due to the transmission path difference (SKEW) caused by the difference in the length of the electric conduction path in each current path. Thereby, the connector C can be made highly accurate and highly reliable.

The contacts 2 used for the holders 6 and 7
Since the contacts 2 have the same shape, it is only necessary to mold the contact 2 having a single shape. Therefore, it is not necessary to manufacture separate upper and lower contacts, and the number of parts can be reduced.

The contact pieces 25 of the contacts 2 shown in FIG. 9 are arranged alternately in upper and lower stages and are arranged in parallel in the shell 4. Since the upper and lower contacts 2 have the same shape, the contact pieces 2 do not need to be bent in particular.
5 can have a parallel structure. FIG. 2 shows this state.

By forming the contact pieces 25 in a parallel structure,
When connecting with the mating connector 30, a highly accurate connector connection is possible. Also, the mating connector 30 to be connected can have a simple shape in which the contact pieces 36 are arranged in a horizontal row, so that the manufacturing process of the mating connector 30 can be simplified and the manufacturability can be improved.

In this embodiment, the upper or lower lead wire 1
The pitch between the shells is 1 pitch and the shell 4
The contact pieces 25 having a parallel structure inside the upper and lower contact pieces 25
Are alternately arranged, and the arrangement interval is 0.5 pitch which is １ ／ of the pitch of the lead wire 1.

According to this structure, the contact piece 25 of the connector C
Can be made significantly finer, and the connector C can be downsized. Also, the pitch of the lead wire 1 side is the contact piece 25.
Since the pitch is twice the pitch on the side, processing in the connector manufacturing process such as voltage welding is easy.

FIGS. 13 to 16 show a mating connector 30 connected to the connector C according to the embodiment of the present invention. The mating connector 30 is mounted on a board or the like.

FIG. 14 is a front view of the mating connector 30. In this embodiment, the mating connector 30 to be connected to the connector C has a housing 31, a fitting portion 32 into which the shell 4 of the connector C is inserted, and a board connecting piece 33 connected to an electrode such as a printed board. are doing.

Further, a fitting projection 34 inserted into the shell 4 of the connector C and a fitting member 35 fitted into the shell 4 of the connector C and positioning the connectors are provided inside the fitting portion 32. Have been.

The contact piece 36 of the connector 30 is arranged on the inner surface of the fitting projection 34 and is electrically connected to the contact piece 25 of the connector C. Since the contact pieces 25 have a parallel structure as described above, the contact pieces 36 may have a simple horizontal shape and may be arranged in parallel at the upper end of the inner surface of the fitting projection 34.

Next, a method of connecting the lead wire 1 will be described. The lead holder 9 is arranged in the lead holder arrangement section 12. FIG. 12 is a perspective view of the lead holder 9. Since the lead holder 9 of FIG. 12 is shown in the direction in which it is arranged on the upper holder 6, when it is mounted on the lower holder 7, it is used upside down.

An electrode insertion port 9 for inserting an electrode Y to be applied to the lead wire in the longitudinal direction is provided on the bottom surface of the lead holder 9.
Form a. In the lead holder 9, the lead wire 1 is inserted and held in the lead holding portion 9b. The connection end 24 of the contact 2 is connected to the lead 1 from the opposite direction to the lead holding portion 9b.
Plugged in. Thus, the lead wire 1 is held and fixed in the lead holder 9. Also, the lead wire 1 in the holder 9
A lead contact preventing wall 9c is provided between the lead wires 1 so that they do not come into contact with each other, and the lead wires 1 are also gripped from the side.

FIG. 9 is a cross-sectional view showing the bonding state of the lead wire 1 and the contact 2. FIGS. 10 and 11 show the characteristics of the process in which the lead wire 1 and the connection end 24 of the contact 2 are joined in an easy-to-understand manner. Figure 1
0 shows a state before electrode welding, and FIG. 11 shows a state after electrode welding.

In FIG. 10, the lead wire 1 has a conductor 1a at the center thereof, and the outer periphery of the conductor 1a
Covered with b. The connection end portion 24 is inserted into the covering portion 1b, but is not joined to the conductor 1a because it is before welding.

The electrode X is inserted into the lead connecting piece 23 located at the back of the end of the connecting end 24, and the lead wire 1 is inserted through the electrode insertion opening 9a.
To the electrodes Y. Here, in order to perform electrode welding, it is desirable to use a member having a high conductivity, such as aluminum, for the connection end 24. In addition, coating part 1
It is desirable to use a member that easily melts, such as polyvinyl chloride, for example. Conversely, it is effective to use a member having high heat resistance that can withstand the heat generated by electrode welding for the lead holder 9. Electrode welding is performed in that state.

FIG. 11 shows a state after electrode welding.
Fused portion 28 is shown in FIG. The connection end 24 and the conductor 1a are fused after being fused by electrode welding. When the connection end 24 and the conductor 1a are welded, the contact 2
And the lead wire 1 can be strongly connected. The strengthening of the connection strength prevents the connection position from being shifted by an external force such as bending. Further, since the connection end portion 24 and the conductor 1a are melted and welded, the contact 2 and the lead wire 1 can obtain a stable contact force.

According to the connection method by electrode welding of the present embodiment, welding work can be performed directly without peeling off the covering portion 1b of the lead wire 1 like soldering. By providing the electrode insertion opening 9a in the electrode, the electrode welding operation can be facilitated and the efficiency can be improved.

That is, according to the present embodiment, it is possible to provide a method for connecting a connector and a lead wire, which has a reduced number of working steps, has a strong and stable contact force, and has a high reliability.

As described above, if the current path of the contact 2 has the same electric conduction path length and is a connector using the above-described connection method with high reliability, a harness for high-speed transmission is used as a measure against the transmission path difference (SKEW). Can also be used.

In the connector C shown in the present embodiment, the connection partner is a mating connector 30 of a board mounting type, but a lead connection connector having the same shape as the connector C may be a connection partner.

[0075]

As described above, the connector of the present invention can be downsized because the contact piece has a double structure and the density is increased. Since the upper and lower contacts of the double structure have the same shape and the parallel structure, a high-precision connector having no transmission line difference can be obtained.

Further, according to the connection method of the present invention, the number of working steps can be reduced by the welding method using the electrodes, and the connection position is not displaced by external force such as bending, and the contact force is stable and reliable. A high connector suitable for high-speed transmission can be provided.

[Brief description of the drawings]

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

FIG. 2 is a front view of the entire connector according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of the entire connector according to the embodiment of the present invention.

FIG. 4 is a plan view of the entire connector according to the embodiment of the present invention.

FIG. 5 is a side view of the entire connector according to the embodiment of the present invention.

FIG. 6 is a perspective view showing a state in which the contact according to the embodiment of the present invention is mounted on a holder.

FIG. 7 is a sectional view showing the entire contact according to the embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a state in which contacts according to the embodiment of the present invention are vertically arranged.

FIG. 9 is a cross-sectional view showing a state where the contact according to the embodiment of the present invention connects the lead wire.

FIG. 10 is a cross-sectional view showing a state before electrode welding in a step of joining a contact and a lead wire shown in FIG. 9;

11 is a cross-sectional view showing a state after electrode welding in a step of joining a contact and a lead wire shown in FIG. 9;

FIG. 12 is a perspective view of a lead holder for holding a lead wire according to the embodiment of the present invention.

FIG. 13 is a partial plan view of a mating connector connected to the connector according to the embodiment of the present invention.

FIG. 14 is a front view of a mating connector connected to the connector according to the embodiment of the present invention.

FIG. 15 is a perspective view of a mating connector connected to the connector according to the embodiment of the present invention.

FIG. 16 is a side view of a mating connector connected to the connector according to the embodiment of the present invention.

FIG. 17 is a sectional view of a contact according to a conventional example.

FIG. 18 is a sectional view of a contact according to a conventional example.

FIG. 19 is a sectional view of a contact according to a conventional example.

FIG. 20 is a cross-sectional view showing a state where a contact according to a conventional example connects a lead wire.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lead wire 2 Contact 3 Housing 4 Shell 5 Lead accommodating part 6 Upper holder 7 Lower holder 9 Lead holder 9a Electrode insertion port 23 Lead connection piece 24 (lead) connection end part 25 Contact piece 28 Fused portion 30 Mating connector C connector X ( Connection end side) electrode Y (lead wire side) electrode α (in this embodiment) current conduction path β (in conventional example) current conduction path γ (in conventional example) current conduction path

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Toshihiro Niitsu 1-4-5 Fukamihigashi, Yamato-shi, Kanagawa F-term in Molex Co., Ltd. 5E012 AA26 AA38 5E051 HA07 LA01 LB03 5E085 BB02 BB14 BB19 DD03 DD07 FF08 FF13 HH11 JJ50

Claims (6)

[Claims] 1. A high-speed transmission connector in which a plurality of contacts arranged in a housing are set to have equal electric conduction path lengths, wherein the contacts are arranged so as to have an interval in a width direction of the housing. Each of the contacts is provided with a fixing piece for the housing, a lead connection piece connected to a lead wire of the connector, and a contact piece that is electrically connected to the contact of the mating connector. The lead connecting piece of one adjacent contact is set at a position displaced downward in the height direction of the housing with respect to the contact piece, and the lead connecting piece of the other adjacent contact is connected to the housing with respect to the contact piece. It is set at a position displaced upward in the height direction, and the amount of displacement of the lead connection piece of each contact with respect to the contact piece is the same. Ku is set, high-speed transmission connector. 2. The contact piece according to claim 1, wherein the contact pieces of each of the contacts are located at an intermediate portion in a height direction of the housing, and are arranged in a line at intervals in a width direction of the housing. High-speed transmission connector. 3. The housing includes a holder for holding each of the contacts, the holder including an upper holder and a lower holder that are vertically overlapped in a height direction of the housing, and the one contact adjacent to the one contact. 3. The high-speed transmission connector according to claim 1, wherein the connector is fixed to an upper holder, and the other contact is fixed to a lower holder. 4. The contact according to claim 3, wherein all the contacts have the same shape, and the contacts fixed to the upper holder are arranged upside down with respect to the contacts fixed to the lower holder. High-speed transmission connector. 5. A method for connecting a lead connecting piece of a contact to a lead wire in the connector for high-speed transmission according to claim 1, wherein a tip of a connecting end provided on the lead connecting piece. Performing a step of abutting against the coating of the lead wire and a step of applying one of the welding electrodes to the lead connection piece and applying the other of the welding electrodes to the coating of the lead wire to supply a welding current. How to connect the line. 6. The lead wire according to claim 5, wherein the lead wire is held by a lead holder disposed in the housing, and the lead holder is provided with an insertion port for the other welding electrode. Connection method.