JP3354370B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector mainly used for signal transmission for preventing crosstalk.

[0002]

2. Description of the Related Art In recent years, in the field of telecommunications, the amount of information to be transmitted has been dramatically increased, so that high-speed signal transmission is required. Since high-speed transmission requires the use of high-frequency signals, the amount of crosstalk between signal lines due to electrostatic coupling increases. That is, it is necessary to reduce the amount of crosstalk in order to prevent signal quality deterioration, and to perform high-speed signal transmission, it is necessary to prevent crosstalk not only in signal lines but also in connectors. Is done.

A connector generally used for communication has a configuration in which two connectors (a plug and a jack) are connected to each other, and a contact portion connected to the other and a terminal portion connected to an external electric wire (signal line). A connecting portion for internally connecting the contact portion and the terminal portion is formed by a conductor, and these conductors include portions arranged in parallel in one plane. In such a parallel portion, crosstalk current flows because the capacitance components between conductors transmitting other signals become unbalanced. Further, since the assignment and the positional relationship of signal types are fixedly determined by the standard, there is a problem that the degree of freedom in design is low and it is difficult to reduce crosstalk in the contact section.

Therefore, in this type of connector, it has been proposed to arrange a connecting portion so that crosstalk between terminal portions of the plug and the jack is reduced in a state where the plug and the jack are connected to each other. It is considered. In this case, the size of the connector on the plug side is smaller than that of the connector on the jack side, and it is difficult to change the arrangement of the connection portion. Is generally devised.
In addition, as described above, the arrangement of the contact portion is restricted,
Since the degree of freedom of arrangement of the terminals is low,
Attempts have been made to reduce crosstalk by employing an arrangement of conductors forming the connection.

For example, the electric connector shown in FIG. 9 described in Japanese Patent Application Laid-Open No. 6-84562 is an 8-pole modular jack type connector, in which a contact portion 1 which contacts a modular plug type connector and an external electric wire are connected. It has a configuration in which a part of the connection part 3 provided between the terminal part 2 to be connected and the terminal part 2 is three-dimensionally crossed. More specifically, when the contact portion 1 is numbered from 1 when viewed from the front (left side in the figure),
The connecting portions 3 connected to the contact portions 1 of each pair cross each other three-dimensionally. This configuration,
Its main purpose is to prevent cross-talk between pairs.

[0006]

By the way, if many kinds of signal lines are to be connected by one connector, it is desirable to arrange the connecting portions so as to prevent crosstalk between all the signal lines. In the connector having the configuration, since the connection parts are arranged on the same plane, the degree of freedom in designing the connection part is low, and the arrangement of the connection parts is designed to prevent crosstalk between all signal lines. It has become difficult.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector which can be easily designed to prevent crosstalk.

[0008]

According to a first aspect of the present invention, a plurality of contact portions electrically connected to a contact portion of a mating connector and a plurality of contact portions connected to an external electric wire are provided. A plurality of terminal portions, a plurality of connection portions for electrically connecting the respective contact portions and the respective terminal portions corresponding to each other, and a base made of an insulating material for holding the contact portions, the terminal portions, and the connection portions. And the connecting portions are arranged on the base in at least two layers over the entire length so as to be in a positional relationship of preventing short-circuiting without short-circuiting each other, and connecting with each other.
In a positional relationship where the connecting parts do not cross over the entire length
Mounted on the base .

By arranging the connecting portions in two or more layers over the entire length as described above, the degree of freedom in arranging the connecting portions is increased, and the connecting portions to be brought close or apart can be easily arranged. As a result, it is easy to design the arrangement of the connecting portions so as to prevent crosstalk. Further, in the conventional configuration, the connection portion is arranged in one plane, so that when the cross-talk countermeasures are taken at the connection portion, the connector becomes wider as a whole. If adopted, the connecting portions can be three-dimensionally arranged to prevent crosstalk, so that the width of the connector can be made smaller than in the conventional configuration. That is, miniaturization is possible while suppressing crosstalk. Furthermore, each other
Positions where the connecting parts of other layers do not cross over the entire length
By being attached to the base by the staff, the layers overlap
Connections are arranged on the base for each layer without considering the order.
It is only necessary to arrange them after they have been formed, which facilitates manufacture.

According to a second aspect of the present invention, in the first aspect, the contact portion, the terminal portion, and the connection portion are formed by stamping a metal plate. According to this configuration, since the contact portion, the terminal portion, and the connection portion are formed by punching a metal plate , a step of electrically connecting the contact portion, the terminal portion, and the connection portion is unnecessary, and the manufacturing is easy. And higher reliability.

According to a third aspect of the present invention, in the first aspect, the contact portion, the terminal portion, and the connection portion are formed by punching a metal plate for each layer. According to this configuration, the contact portion, the terminal portion, and the connection portion are formed by punching the metal plate , so that the contact portion, the terminal portion, and the connection portion are electrically connected. No process is required, manufacturing is easy, and reliability is high. In addition, by forming the conductor pattern on the layers, the conductors of the same layer can be manufactured collectively in units of layers, and the conductors can be arranged on the base in units of layers, which further facilitates the manufacture.

[0012]

[0013] In the present invention of claim 4, wherein claims 1
Item 3 is the invention according to Item 3 , wherein the external electric wire is a pair wire, and the terminal portions are arranged so as to be adjacent to each pair connected to one pair of pair wires. According to this configuration,
Since the terminal portions are adjacent to each other for each paired wire, the position of the terminal portion to which the paired wire is to be connected can be easily understood, and the connection work can be facilitated. In addition, since the terminal portion is adjacent to each pair of the pair wires, it is not necessary to separate the wires forming the pair wires at the end portions, and the connector can be connected to the connector without changing the characteristic pin impedance of the master wire. Will be possible. In other words, hardly occurs deterioration of transmission characteristics due to variations in the characteristic impedance of the wire pairs, rather small fluctuations in transmission and crosstalk due to construction conditions, it is possible to obtain a cheap Jona transmission characteristics.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, a part of the connecting portion has a wraparound portion passing through a side opposite to the contact portion with respect to a terminal portion connected to the other connecting portion. And According to this configuration, since the wraparound portion is formed for some of the connection portions, it is easy to arrange the terminal portions so as to correspond to the pair of pair wires. In other words, it can be easily formed by punching a metal plate as in the invention of claim 2, moreover, according
It is easy to arrange the connecting portions so that they do not cross three-dimensionally as in the invention of Item 1 .

In the invention of claim 6 , claim 4 or claim
In the invention of Item 5 , the pair wire is a pair of a color line having a single color of insulating coating and a white background line including white, and the terminal portion is connected to the contact portion such that the color line and the white background line alternately. Is established. According to this configuration, in addition to the terminal portions being arranged for each pair of the paired wires, each line constituting the paired wire is identified by a color, and furthermore, in the connection state, the color lines and the white background lines are alternately arranged. By doing so, the incorrect connection can be recognized at a glance, and as a result, the possibility of the incorrect connection can be reduced.

According to the seventh aspect of the present invention, the first to the fifth aspects of the present invention are provided.
Item 6 is the invention according to Item 6 , wherein the connection portion of each layer is formed in one plane. According to this configuration, since the connecting portion of each layer is formed in one plane, it is not necessary to form a bent portion in the connecting portion of each layer,
As a result, the number of bent portions is small and the manufacture is easy.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, a modular jack type connector is shown as an embodiment, but the embodiment shown here does not prevent the technical idea of the present invention from being applied to other types of connectors. As shown in FIG. 4, the connector is an eight-pole type modular jack, and a terminal base 10b is made of an insulating material in which a terminal base 10b is continuously and integrally extended behind a lower part of a connection base 10a having a plug insertion port 11 opened on the front surface. The base 10 is provided. One end of a lever 12 is pivotally connected to the connection base 10a, and the lever 12 opens and closes between a position where it covers the upper surface of the terminal base 10b and a position where the upper surface of the terminal base 10b is opened. The holding member 1 is placed on the terminal base 10b.
The holding member 13 is connected to the lever 12 so that the holding member 13 can move up and down in conjunction with opening and closing of the lever 12. A mechanism for converting the rotation of the lever 12 into a vertical movement of the holding member 13 has been previously filed, and is not the gist of the present invention, so that the description is omitted here.

A connection recess 14 is formed in the connection base 10a, and an opening surface of the connection recess 14 serves as a plug insertion port 11. A modular plug-type connector is inserted into the connection recess 14 through the plug insertion opening 11, and a plurality of plugs (here, 8) are elastically connected to contact portions provided on the modular plug-type connector. The book contacts 1 are arranged in the connection recesses 14 so as to be parallel to each other. Each contact part 1 is a linear spring, and is arranged so as to protrude rearward and upward from the front end of the connection recess 14. A plurality of terminal portions 2 electrically connected to the respective contact portions 1 are provided on the terminal base 10b. Each terminal portion 2 includes a plate-like terminal piece 2a (see FIG. 2), and each terminal piece 2a is formed with a press-contact slit 2b whose upper end is open. This terminal strip 2a
As is well known, an insulation-coated wire is press-fitted into a press-fitting slit 2b from the upper end to cut off the insulating coating at both side edges of the press-fitting slit 2b and sandwich a core wire between both side edges of the press-fitting slit 2b. It is.

On the other hand, the holding member 13 is formed to be hollow, and as shown in FIG. 5, an electric wire L ₁ connected to the terminal piece 2a.
The ~L ₈ has a partition wall 13a so as to be able to hold the separated individually. An opening window 13b is formed at a position corresponding to the terminal piece 2a in the holding member 13, and a projection (not shown) projecting from the lower surface of the lever 12 when the lever 12 is closed is connected to the electric wire through the opening window 13b. L ₁
By pressing the ~L _8, thereby making it possible to push the electric wire L ₁ ~L ₈ in pressure contact slit 2b.

By the way, the wiring assignment of the contact part 1 is defined in ANSI / EIA / TIA-568 (Commercial Building Communication Wiring Standard), and as shown in FIG. When the parts 1 are arranged to protrude from the top to the bottom, terminal numbers are assigned in the order of from left to right. At this time, the color codes of the electric wires electrically connected to the respective contact parts 1 are defined as follows. Is done. That is, white-orange, orange, white-
Green, blue, white-blue, green, white-brown, and brown (white-X (X: orange, green, blue, brown) indicates that two colors, white and X, are colored over the entire length. Represents that).
The electric wires L _{1 to} L ₈ connected to the terminal portion 2 are twisted pair wires, and the contact portions 1,.
Are defined as a pair. In other words, the paired wire of the twisted pair wire is obtained by twisting a color wire having a single color of the insulation coating and a white background wire having the two colors of the insulation coating of white and other colors. The colors that are not the same as the colors of the paired color lines are adopted. For example, the white background line is white and green 2
When it is a color, a green line is paired with a green line. In addition to the provision of the color code of the electric wire, the near-end crosstalk between the paired wires is also specified.

In this case, the pair is arranged between the pairs, so that if the connecting portion 3 is formed on one plane, it is formed by the capacitance component between the connecting portions 3. The bridge circuit becomes unbalanced. That is, a crosstalk current easily flows between the pair and the crosstalk current increases particularly when the frequency of the signal increases. Also, as for the other pairs, the higher the frequency, the more the amount of crosstalk increases.

According to the present invention, as shown in FIGS. 1 and 2, the connection portions 3 for electrically connecting the contact portion 1 and the terminal portion 2 are arranged in three layers, and the shape of the connection portion 3 Has a shape different from the conventional one, thereby reducing the amount of crosstalk and facilitating the connection work. Here it is clear from the figure
The contact part 1 is connected to one end of the connection part 3 as if
The terminal 2 is continuous with the other end of the connection 3. Contact part 1
The terminal portion 2 and the connection portion 3 are continuously and integrally formed in a lead frame shape by punching an elastic metal plate (alloy) having a thickness of about 0.4 mm, and the connection portion 3 is arranged in the same layer. Contact part 1, terminal part 2, connecting part 3
Is formed by punching a single metal plate. That is, by punching out three metal plates 4 having the shapes shown in FIGS. 6 to 8, three layers of conductor portions can be formed. If this metal plate 4 is supplied as a hoop material as in the case of forming a lead frame for an integrated circuit, it can be continuously punched.

The metal plate 4 punched and formed in the shape described above is mounted on the base 10 so that three layers are sequentially overlapped. The contact portion 1 is bent after the base 10 is formed. As described above, since the bending work is hardly required, the working becomes easy. Here, the conductor pattern formed on each metal plate 4 is formed in a shape such that when it is attached to the base 10 and the contact portion 1 and the terminal portion 2 are bent, they do not cross each other three-dimensionally. Therefore, each metal plate 4
Does not limit the stacking order except for setting the stacking order in consideration of the crosstalk characteristics. In addition, since the connecting portions 3 are arranged to be shifted in the thickness direction of the base 10, the degree of freedom in designing the distance between conductors and the dimensions is increased, and the capacitance component between each pair of connecting portions 3 is reduced. It becomes possible to make them substantially balanced, and it becomes possible to reduce the amount of crosstalk.
Also, since the left and right sides of the contact portion 1 and the connection portion 3 are reversed for each pair of the contact portions, the contact portions of the modular plug type connector which is the mating connector that contacts the contact portion 1 in each of these pairs. The relationship between the left and right arrangement of the connector and the left and right arrangement of the connector connection part 3 can be reversed. As a result, when the mating connector is connected to the connector, an unbalanced current having a phase opposite to that of the unbalanced current generated at the mating connector is generated at the connector, and the unbalanced currents of the two cancel each other out, so that the amount of crosstalk is reduced. It is further reduced.

By the way, in the above-mentioned pair, the connecting portions 3 are adjacent to each other, so that the terminal portions 2 can also be adjacent to each other, but in the pair, there is a pair of connecting portions 3 between the connecting portions 3. Wrap around part 3a
The terminal portions 2 are arranged adjacent to each other. In other words, the wraparound portion 3a is formed so as to pass through the opposite side of the contact portion 1 with respect to the other pair of terminal portions 2 so that the pair of terminal portions 2 can be adjacent to each other. It is like that. The terminal 2 is
The color lines and the white background lines of the connected pair lines are arranged in this order such that they are alternately arranged. With such an arrangement, the paired color line and the white background line are connected to the adjacent terminal unit 2, and the color line and the white background line are alternately arranged. It can be easily recognized, and as a result, erroneous connection can be reduced. This leads to an improvement in the reliability of the construction. In addition, since the left and right in FIG. 1 are interchangeable, the wraparound portion 3a may be provided in the connection portion 3.

[0025]

According to the first aspect of the present invention, the connecting portions electrically connecting the contact portions and the terminal portions are short-circuited over the entire length so as not to short-circuit each other and to prevent crosstalk. <br/> At least two layers are arranged on the base and
The connections are based on a positional relationship where the connections do not cross over the entire length.
Since it is mounted on a table, the degree of freedom in arranging the connecting parts is increased, and the connecting parts to be approached or separated can be easily arranged, and as a result, the arrangement of the connecting parts to prevent crosstalk There is an advantage that design becomes easy. In addition, since the connection portion is three-dimensionally arranged to prevent crosstalk, the width of the connector can be made relatively small,
There is an advantage that miniaturization is possible while suppressing crosstalk. Furthermore, the connection portions of the other layers mutually extend over the entire length.
Since it is attached to the base in a positional relationship that does not cross over,
Connection part for each layer without considering the overlapping order of layers
It is only necessary to arrange the components on the base and then align them.
There is an advantage that it becomes.

According to the second aspect of the present invention, since the contact portion, the terminal portion, and the connection portion are formed by stamping a metal plate, a step of electrically connecting the contact portion, the terminal portion, and the connection portion is unnecessary. There is an advantage that manufacturing is easy and reliability is high. According to the third aspect of the present invention, since the contact portion, the terminal portion, and the connection portion are formed by punching a metal plate for each layer, a step of electrically connecting the contact portion, the terminal portion, and the connection portion is unnecessary. There is an advantage that manufacturing is easy and reliability is high.Moreover, by forming conductor patterns on layers, conductors of the same layer can be manufactured collectively in layers and conductors can be formed in layers. There is an effect that it can be arranged on the base and manufacturing becomes easier.

[0027] A fourth aspect of the present invention, the external electric wires and wire pairs, because arranged adjacent to each pair connected to the terminal portion to a set of wire pairs, to be connected to pair line terminal There is an advantage that the position of the part is easy to understand and the connection work is easy. In addition, since the terminal portion is adjacent to each pair of pair wires, it is not necessary to separate each wire forming the pair wire at the end portion, and it is possible to connect to the connector without changing the characteristic impedance of the pair wire. Become. In other words, hardly the deterioration of transmission characteristics due to variations in the characteristic impedance of the wire pair occurs, there is the variation of the transmission and crosstalk due to construction conditions is reduced, there is an advantage that it is possible to obtain a cheap Jona transmission characteristics.

According to the fifth aspect of the present invention, since a wraparound portion is provided at a portion of the connection portion which is opposite to the contact portion with respect to the terminal portion which is continuous with the other connection portion, it corresponds to a pair of pair wires. There is an advantage that it is easy to arrange the terminals in such a manner. According to the invention of claim 6 , the terminal portions are arranged so that the color line and the white background line of the pair wire are alternately arranged. Therefore, in the connection state, the color line and the white background line are alternately arranged, and the erroneous connection is made. Can be confirmed at a glance, and there is an advantage that the possibility of erroneous connection can be reduced.

According to the seventh aspect of the present invention, since the connecting portions of the respective layers are formed in one plane, it is not necessary to form bent portions in the connecting portions of the respective layers. There is an advantage that the production is easy and the production is easy.

[Brief description of the drawings]

FIGS. 1A and 1B show an embodiment of the present invention, wherein FIG. 1A is a plan view of a conductor portion, and FIG. 1B is a cross-sectional view corresponding to a cross section taken along line AA of FIG.

FIG. 2 is a perspective view of a conductor part according to the first embodiment;

FIG. 3 is an explanatory diagram showing an arrangement of contact portions in the above.

FIG. 4 is a perspective view of the same.

FIG. 5 is a plan view showing a state where the lever is removed.

FIG. 6 is a plan view showing a punching pattern of a conductor portion used in the above.

FIG. 7 is a plan view showing a punching pattern of a conductor portion used in the above.

FIG. 8 is a plan view showing a punching pattern of a conductor portion used in the above.

FIG. 9 is an exploded perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Contact part 2 Terminal part 3 Connection part 3a Wraparound part 4 Metal plate 10 Base

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masahiko Amano 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor Shinji Morino 1048 Kadoma Kadoma, Kadoma City, Osaka Matsushita Electric Works (72) Inventor Hirohisa Okuno 1048 Kadoma Kadoma, Kadoma-shi, Osaka, Japan (72) Inventor Takao Sase 1048 Kadoma Kadoma, Kadoma-shi, Osaka Matsushita Electric Works, Ltd. (56) Reference: JP-A-7- 302641 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/33 H01R 24/00

Claims (7)

(57) [Claims] 1. A plurality of contact portions electrically contacting a contact portion of a mating connector, a plurality of terminal portions connected to an external electric wire, and respective corresponding contact portions and respective terminal portions, respectively. A plurality of connecting portions for electrical connection, a base made of an insulating material for holding the contact portion, the terminal portion, and the connecting portion are provided, and the connecting portions do not short-circuit with each other and have a positional relationship of preventing crosstalk. At least two layers on the base over the entire length and connecting to other layers
The bases are in a positional relationship where the parts do not cross over the entire length.
A connector characterized by being mounted . 2. The connector according to claim 1, wherein the contact portion, the terminal portion, and the connection portion are formed by stamping a metal plate. 3. The connector according to claim 1, wherein the contact portion, the terminal portion, and the connection portion are formed by punching a metal plate for each layer. 4. The external electric wire is a pair wire, and the terminal portion is one.
Are arranged adjacent to each other in pairs
4. The method according to claim 1, wherein
2. The connector according to claim 1 . 5. Some of the connecting portions are connected to other connecting portions.
Wrap-around part that passes on the opposite side to the contact part with respect to the child part
The connector according to claim 4, comprising: 6. The pair wire is a color wire whose insulation coating is a single color.
And a white line including white, and the terminal part is a color line and white
The connection relationship with the contact part is such that the ground wire and the ground wire are alternately arranged.
5. The method according to claim 4, wherein the setting is made.
5. The connector according to 5 . 7. The connection of each layer is in one plane.
Claim 1 or Claim 2 characterized by being formed.
Connector according to any one of 6.