JP3157478U - Electrical connector - Google Patents

Abstract

An electrical connector in which a connection terminal portion forms an excellent electrical connection to a metal pin of a fixed seat is provided. A connection terminal portion 2 that matches a universal serial bus connector 3.0 and whose terminal portions 21 and 22 have base portions 211 and 221 is accommodated in an insulating base 1. Connection end portions 213 and 223 installed on the connection portion 111 of the insulating base 1 are provided on one side of the base portions 211 and 221 of the terminal portions 21 and 22, and the accommodation passage 112 protrudes on the other side to insulate the cable 4 The piercing-type contact portions 212 and 222 for connecting the pin 41 to the piercing metal pin 42 are provided. According to such a configuration, the manufacturing time and cost are reduced, and the elasticity of the contact portions 212 and 222 can cause irregularity when the ends are raised, thereby avoiding poor connection between the contact portion and the metal pin. It is possible to reduce the defect rate and improve the reliability of manufacturing the connector. [Selection] Figure 2

Description

  The present invention relates to an electrical connector, and more particularly to an electrical connector in which a contact portion pierces an insulating layer of a cable so that a connection terminal portion and a metal pin of a fixed seat form an excellent electrical connection.

  In today's days when science and technology are making dramatic progress, electronic devices are more widely applied in daily life and used for processing various tasks. Further, as a transmission method between various electronic devices, by connecting a connector having a transmission cable, each electronic device can transmit information and data to each other. Therefore, the transmission speed is very important in the transmission process of each electronic device.

  Currently, there are serial connector types that conform to the standards of Universal Serial Bus (USB) connectors 1.1 and 2.0, and the transmission speeds are 1.5 Mbit / s and 480 Mbit. / S. However, since the amount and capacity of data that needs to be transmitted by the electronic device is increasing, the transmission speed of the conventional connector is insufficient. Therefore, new research and development have been conducted on connectors capable of high-speed transmission.

  For example, the universal serial bus connector 3.0 has a transmission speed of 5 Gbit / s and is backward compatible with the conventional universal serial bus connector 1.1 or 2.0. Therefore, the current universal serial bus connector 3.0 takes a form in which another connection terminal is newly mounted while holding the conventional connection terminal as it is.

  Thus, the universal serial bus connector 3.0 has two sets of different connection terminals, the external connector is connected by the connection end on one side of the connection terminal portion, and the contact on the other side. The board and the predetermined cable are soldered by the part. When the predetermined cable is electrically connected, the insulating layer is removed to expose the metal pin, which is used for surface mounting technology (SMT), and is soldered to the contact portion and the metal pin. The applicable technology uses adhesives and adhesive parts, and the soldering point of the contact part and the metal pin is securely positioned, soldered to a high-temperature device such as a reflow furnace, and after cooling the soldering point, the next step Go.

  However, the manufacture of the terminal structure of the electrical connector has the following drawbacks.

  The conventional soldering process eliminates the insulating layer and exposes the metal pins, and the technology uses adhesives and adhesive parts to ensure that the contact points and the metal pins are soldered at the correct position, reflow oven After soldering the isothermal device and cooling the soldering point, the next step is performed. Increase manufacturing time and costs.

  In addition, with the miniaturization of electronic component standards, the conventional connection terminals are held as they are, and another connection terminal is newly mounted and the connection terminal portions are closely arranged. However, in the process of soldering the terminal and the cable, there is a problem that the adhesive melted by the heat flows and the contact portions are electrically connected to each other and short-circuited. In addition, there is elasticity of the terminal structure, and when the end of the contact portion is raised, a non-uniform order is formed, and a reliable coplanar surface is not formed. The contact part is poorly connected to the metal pin, which affects the transmission efficiency of the connector. Depending on the circumstances, the reliability and good rate of the connector are greatly reduced.

  The predetermined cable of the present invention has a fixed seat, and the guide blades of the contact portions of the first terminal portion and the second terminal portion pierce the insulating layer of the predetermined cable, that is, the contact portion and the metal pin of the cable are electrically connected. Connected. In this way, the insulating layer is rejected to expose the metal pin, and the manufacturing time and cost are reduced without using soldering between the contact portion and the metal pin. In addition, the manufacturing process is advanced, and the elasticity of the contact portion prevents the contact end and the metal pin from becoming poorly connected and the contact portion and the metal pin are poorly connected. Reduce the defect rate and improve the reliability of connector manufacturing.

  The cable of the present invention is fixed to the fixed seat, and the guide blade of the contact portion pierces the insulating layer of the cable vertically and is connected to the metal pin. The cable has a fixed seat fixed in the radial direction, a guide blade that pierces the insulating layer of the cable in the axial direction, and a positioning groove fixed in the axial direction. The cable is fixed in the axial direction by a fixed seat, and the guide blade pierces the insulating layer of the cable in the radial direction. The contact portion can be reliably electrically connected.

  In the present invention, since the contact portion pierces the insulating layer of the cable, the connection terminal portion and the metal pin of the fixing seat form an excellent electrical connection, and there is an effect that the connection method is reliably provided.

The figure which shows the terminal structure of the electrical connector of this invention. The perspective view which shows the terminal structure of the electrical connector of this invention. The upper view which shows the terminal structure of the electrical connector of this invention. The upper view which shows the terminal structure of the electrical connector of this invention. The upper view which shows the terminal structure of the electrical connector of this invention. The perspective view which shows the terminal structure of the electrical connector of this invention. The perspective view which shows the terminal structure of the electrical connector of this invention.

  As shown in FIGS. 1 and 2, the electrical connector of this embodiment includes an insulating base 1, a connection terminal portion 2 formed in the insulating base 1, a protective case 3, and a cable 4. Has the following configuration.

  The insulating base 1 includes a base 11 and a fixed seat 12. The base 11 has a connection portion 111 on the surface of one side, a housing passage 112 is formed through the connection portion 111 from the other side, and the base 11 is on the other side away from the connection portion 111. Engagement holes 113 are provided on both the left and right sides. Further, on both sides of the fixed seat 12, a lock portion 121 that can be fitted and connected to the engagement hole 113 is provided, and an accommodation space 120 is provided between the lock portions 121. Among them, a boss 122 having a space is provided.

  The connection terminal portion 2 is fixed inside the insulating base 1 and includes a first terminal portion 21 and a second terminal portion 22, and each base portion 211 of the first terminal portion 21 and the second terminal portion 22. The piercing-type contact portions 212 and 222 are extended on one side of 221, and the connection end portions 213 and 223 are extended on the other side. Further, the contact portions 212 and 222 are provided with V-shaped guide blades 2121 and 2221 on the outer side, and the width of the contact portions 212 and 222 toward the base portions 211 and 221 is smaller by the guide blades 2121 and 2221. Respective positioning grooves 2122 and 2122 are provided. The connection end portions 213 and 223 have different widths, are spaced apart, and are alternately inserted and arranged.

  The first terminal portion 21 is a connector conforming to the standard of the universal serial bus connector 1.1 or 2.0, and may include four or five terminals, and the second terminal portion 22 may include five terminals. I have.

  The protective case 3 is coated on the outside of the insulating base 1 having the connection terminal portion 2, and a connection port 31 that can be plugged into an external connector is formed on one side.

  In the cable 4, the connection terminal portions 2 are electrically connected, and the respective arrangements are presented. An insulating layer 41 is provided outside the cable 4. A metal pin 42 is covered inside the insulating layer 41. The metal pin 42 is a conductive material, such as nickel, copper and an alloy.

  As shown in FIGS. 1, 2, 3, 4, and 5, the base portions 211 and 221 of the first terminal portion 21 and the second terminal portion 22 accommodate the base 11 of the insulating base 1. A passage 112 is formed, and contact portions 212 and 222 are extended outwardly on one side of the respective base portions 211 and 221, and connection end portions 213 and 223 are extended on the other side. After that, the protective case 3 is covered with the outside of the insulating base 1 having the connection terminal portion 2, and a connection port 31 that can be plugged into an external connector is formed on one side.

  Furthermore, each cable 4 is arranged on the fixed seat 12 and positioned in the accommodation space 120 when it is arranged. Further, the lock portion 121 of the fixed seat 12 is connected to the engagement hole 113 of the base seat 11.

  The cable 4 is positioned in the vertical direction and the radial direction by the respective bosses 122 inside the accommodation space 120, and the contact portions 212 and 222 of the first terminal portion 21 and the second terminal portion 22. The V-shaped guide blades 2121 and 2221 cut the insulating layer 41 laterally. In addition, the positioning grooves 2122 and 2122 formed inside the guide blades 2121 and 2221 have a diameter smaller than that of the metal pin 42 of the predetermined cable 4, that is, the metal pins 42 are connected to the positioning grooves 2122 and 2122. ing.

  Thus, when soldering is not used, the contact portions 212 and 222 of the connection terminal portion 2 can be electrically connected to the cable 4. The cable 4 is fixed in the radial direction between the bosses 122 and fixed in the axial direction inside the V-shaped guide blades 2121 and 2221. That is, the cable 4 is electrically connected to the contact portions 212 and 222. can do.

  Next, as shown in FIGS. 6 and 7, in another embodiment, the insulating base 1 includes a base seat 11, a fixed seat 12, and an upper seat 13. The accommodation passage 112 of the base 11 corresponds to the connection portion 111 and is provided with a positioning portion 114 on the other side. In addition, the base 11 has respective fixing holes 115.

  The insulating base 1 has a receiving passage 131 formed on the base 11. In addition, a connection portion 132 is provided on one side of the accommodation passage 131 and a positioning portion 133 is provided on the other side. In addition, the upper seat 13 corresponds to the fixing hole 115 and has the respective fixing column portions 134.

  Further, the fixed seat 12 of the insulating base 1 has an L-shaped structure, and a guide hole 123 through which the cable 4 can be drilled laterally is provided on one side of the fixed seat 12. The guide hole 123 corresponds to the positioning portion 114 and the positioning portion 133, and is directed to one side, and each slot 124 is formed.

  The connection terminal portion 2 is fixed inside the insulating base 1. The base portion 211 of the first terminal portion 21 is provided with the accommodating passage 112 of the base 11 of the insulating base 1. The accommodation passage 112 protrudes on one side of the base 11, the positioning portion 114 is fixed, the contact portion 212 extends, and the connection end portion 213 is provided on the other side connection portion 111. . The base portion 221 of the second terminal portion 22 is provided with an accommodation passage 131 of the upper seat 13. In addition, the accommodation passage 112 protrudes on one side of the base 11, the contact portion 222 fixed to the positioning portion 133 is extended, and the connection end portion 223 is provided on the connection portion 132 on the other side. Yes. Further, the base 11 having the first terminal portion 21 and the upper seat 13 having the second terminal portion 22 are connected by a fixing hole 115 and a fixing column portion 134. In addition, positioning portions 114 and 133 are inserted into the fixed seat 12 of the guide hole 123 provided with the cable 4.

  Further, the slots 124 are inserted into the contact portions 212 and 222 of the first terminal portion 21 and the second terminal portion 22 by the respective guide blades 2121 and 2221, and thus the insulating layer 41 of the cable 4. Is bitten vertically. The contact portions 212 and 222 are connected to the metal pin 42. The guide blades 2121 and 2221 fix the cable 4 in the radial direction. Further, each guide blade 2121, 2221 has a U shape.

  The main feature of the present embodiment is that the connection terminal portion 2 includes a first terminal portion 21 and a second terminal portion 22. The connection end portions 213 and 223 have different widths, are spaced apart, and are alternately inserted and arranged. The contact portions 212 and 222 are pierced and can pierce the insulating layer 41 of the cable 4. The contact portions 212 and 222 and the metal pin 42 are electrically connected. As described above, the contact type 212 and 222 applied to the male connector and the female connector, and the contact portions 212 and 222 of the connection terminal portion 2 can be changed in accordance with the designer's demand. The cable 4 is fixed to the fixing seat 12, or any other modifications and changes that have the same effect as the present invention made without departing from the spirit of the present invention. Belongs to.

  As described above, the electrical connector of this embodiment has the following advantages when used.

  The first terminal portion 21 and the second terminal portion 22 of the present invention are pierced with the insulating layer 41 by the guide blades 2121 and 2221 of the contact portions 212 and 222, that is, the contact portions 212 and 222 are connected to the cable 4. The metal pin 42 is electrically connected. The manufacturing process can be simplified, and the manufacturing time and cost can be reduced. In addition, when the manufacturing process is advanced, the contact portions 212 and 222 are deformed irregularly when the ends are raised, and the contact portions 212 and 222 can avoid poor connection with the metal pin 42. Reduce the defect rate and improve the reliability of connector manufacturing.

  In the cable 4 of the present invention, the contact portions 212 and 222 are electrically connected, the boss 122 of the fixed seat 12 is fixed in the radial direction, and the positioning grooves 2122 and 2122 inside the V-shaped guide blades 2121 and 2221 are formed. It is fixed in the axial direction. Further, the fixed seat 12 has an L-shaped structure and is provided with a guide hole 123 through which the cable 4 can be drilled in the horizontal direction. The cable 4 is fixed in the axial direction. In addition, the fixed seat 12 is fixed in the radial direction with the insulating layer 41 vertically pierced in the vertical direction of the guide blades 2121 and 2221 of the contact portions 212 and 222. The radially and axially fixed configuration allows the cable 4 and the contact portions 212 and 222 to be electrically connected reliably.

  The fixed seat 12 of the insulating base 1 of the present invention is provided with a guide hole 123 on one side of the fixed seat 12 through which the cable 4 can be drilled laterally. Thereby, the cable 4 is reliably fixed to the guide hole 123. In the guide blades 2121 and 2221 of the contact portions 212 and 222, the insulating layer 41 is vertically stabbed and the metal pin 42 is connected.

  The above description is merely an example of the present invention, and does not limit the scope of the present invention, and can achieve simple modifications and the same effects that can be made based on the description and drawings of the present invention. Any structural changes are within the scope of the claimed invention.

  DESCRIPTION OF SYMBOLS 1: Insulation base, 11: Base, 111: Connection part, 112: Accommodating passage, 113: Engagement hole, 114: Positioning part, 115: Fixed hole, 12: Fixed seat, 120: Accommodating space, 121: Lock part , 122: boss, 123: guide hole, 124: slot, 13: upper seat, 131: receiving passage, 132: connection portion, 133: positioning portion, 134: fixed column portion, 2: connection terminal portion, 21: first Terminal part 211: Base part 212: Contact part 2121: Guide blade 2122: Positioning groove 213: Connection end part 22: Second terminal part 221: Base part 222: Contact part 2221: Guide blade 2222: Positioning groove, 223: Connection end, 3: Protective case, 31: Connection port, 4: Cable, 41: Insulating layer, 42: Metal pin

Claims (5)

An insulating base having a connecting portion on one side and a receiving passage penetrating on the other side;
The insulating base is fixed to the receiving passage, conforms to the standard of the universal serial bus connector 3.0, each terminal portion has a base, and the insulating base is provided on one side of the base of the terminal portion. A connecting terminal portion extending from a connecting end portion extending from the connecting portion, protruding from the accommodation passage on the other side and piercing the insulating layer of the cable and connecting to the metal pin;
A protective case that covers the outside of the insulating base having the connection terminal portion, has a connection port that can be plugged into an external connector on one side, and has a hollow shape. Electrical connector. The insulating base includes a base seat and a fixed seat,
The base has a connection portion on the surface of one side, and a receiving passage through which each base portion of each terminal portion of the connection terminal portion is inserted is formed to penetrate from the connection portion toward the other side. ,
A connection end portion installed in the connection portion of the insulating base extends on one side of the base portion of the connection terminal portion, and a contact portion of a type protruding from the accommodation passage extends on the other side,
The electrical connector according to claim 1, wherein the fixed seat has a space-like boss in the accommodation space.   The contact portion is provided with a V-shaped guide blade on the outer side, and a positioning groove having a width smaller than that of the guide blade is provided on each base side of the contact portion to fix the axial direction of the cable. The electrical connector according to claim 2, wherein The insulating base includes a base, a fixed seat, and an upper seat,
The base is provided with a connecting portion on one side, and on the other side is formed a receiving passage in which the bases of the first terminal portion and the second terminal portion are formed,
On one side of the base portion of the first terminal portion and the second terminal portion, a connection end portion drilled in the connection portion of the insulating base extends,
A contact portion extends on the other side of the base portion of the first terminal portion and the second terminal portion, and this contact portion is provided on the other side of the connection portion of the accommodation passage of the base seat. The electrical connector according to claim 1, wherein the electrical connector is fixed to the positioning portion. The fixed seat has an L-shaped structure, and a guide hole for fixing the cable in the axial direction is provided on one side of the fixed seat,
5. The guide hole according to claim 4, wherein a slot corresponding to the positioning portion of the base seat and the positioning portion of the upper seat is formed in the guide hole, and the U-shaped guide blade fixes the cable in the radial direction. Electrical connector as described.

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