Electric connector

Abstract

The utility model provides an electric connector, which comprises a lengthwise insulating body, a plurality of conductive terminals fixed on the insulating body and a metal shell covered outside the insulating body, and is characterized in that the insulating body is provided with a plugging space which is opened upwards; contact arms of the conductive terminals protrude upwards in the plugging space so as to be in contact with a butt joint element, and the conductive terminals comprise a first terminal used for transmitting signals, a second terminal used for transmitting power and a third terminal located between the first terminal and the second terminal so as to detect signals. The first terminal is arranged on one side of the third terminal in the lengthwise direction, and the second terminal is arranged on the other side of the third terminal in the lengthwise direction. The electric connector can improve the integrity of high-speed signal transmission, can realize power supply transmission at the same time, does not need an external power supply to provide power, and can avoid the problems of power supply noise and electromagnetic interference at the same time.

Description

Technical Field

[0001] The utility model relates to an electric connector. Background Art

[0002] Traditional high-speed transmission equipment uses separate designs for power supplies and high-frequency connectors. This approach is susceptible to power supply noise, ground loops, and electromagnetic interference (EMI), which can lead to a decrease in signal integrity. This problem is particularly pronounced in high-frequency applications, where noise and interference from the external power supply and connecting cables can directly impact the stability and reliability of data transmission.

[0003] In view of this, it is necessary to improve the existing electrical connector to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to provide an electrical connector that can improve the integrity of signal transmission and avoid power supply noise and electromagnetic interference.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides an electrical connector, which includes a longitudinally elongated insulating body, a plurality of conductive terminals fixed to the insulating body, and a metal shell covering the outside of the insulating body, the insulating body having an upwardly open insertion space, the contact arms of the conductive terminals protruding upward in the insertion space to contact the docking element, the conductive terminals including a first terminal for transmitting signals, a second terminal for transmitting power, and a third terminal located between the first and second terminals for detecting signals, the first terminal being arranged on one side of the third terminal in the longitudinal direction, and the second terminal being arranged on the other side of the third terminal in the longitudinal direction.

[0006] As a further improvement of the present invention, the first terminal includes a plurality of differential terminal pairs and a grounding terminal separating two adjacent differential terminal pairs. The electrical connector also has an insulating member assembled and fixed in the insulating body. The first terminal is embedded and fixed in the insulating member, and the fixing portion of the differential terminal pair is partially exposed outward from the groove on the insulating member.

[0007] As a further improvement of the present invention, each of the first terminals has a fixing portion extending downward from the contact arm to be fixed in the insulating member and a first welding portion bent and extended from the fixing portion to be connected to the external circuit board. Each of the fixing portions is provided with a narrowing portion whose width is narrowed in the longitudinal direction, and the height of the narrowing portion of the grounding terminal extending upward is greater than the height of the narrowing portion of the differential terminal pair.

[0008] As a further improvement of the present invention, a portion of the narrowed portion of the ground terminal is exposed on the upper side of the insulating member, and the narrowed portion of the differential terminal pair is buried in the insulating member, with one side surface in the width direction exposed in the groove.

[0009] As a further improvement of the present invention, the plug-in space includes first, second and third plug-in spaces arranged along the longitudinal direction of the insulating body, the first and second plug-in spaces accommodate the first terminal, and the third plug-in space accommodates the second terminal and the third terminal.

[0010] As a further improvement of the present invention, the insulating body is provided with a positioning protrusion protruding from its outer wall surface, a positioning groove is formed between the positioning protrusion and the outer wall surface, and the positioning protrusion has a pair of recessed notches concavely arranged on its upper side.

[0011] As a further improvement of the present invention, the third plug-in space includes a first receiving space for receiving the second terminal and a second receiving space for receiving the third terminal. The size of the second receiving space in the width direction is smaller than the size of the first receiving space in the width direction, and the locking protrusion is arranged on the outer wall surface corresponding to the second receiving space.

[0012] As a further improvement of the present invention, the metal shell is provided with a retaining piece that cooperates with the retaining groove, the retaining protrusion and the outer wall surface are connected to each other by a connecting portion, the retaining groove is divided into two parts from the middle portion by the connecting portion, a pair of retaining pieces are placed on both sides of the connecting portion, and each retaining piece has a barb that interferes with the connecting portion.

[0013] As a further improvement of the present invention, each of the second terminals has a flat-plate-shaped holding portion, a connecting arm extending upward from the holding portion, the contact arm formed by bending downward from the top of the connecting arm, and a welding foot formed by tearing and bending from the lower part of the holding portion. The second terminals are arranged opposite to each other in the width direction, and the distance between the holding portions of the two oppositely arranged second terminals is greater than the distance between the welding feet of the two oppositely arranged second terminals.

[0014] As a further improvement of the present invention, the retaining portion has a pair of limiting portions located on its lower side and disposed on both sides of the welding foot in the longitudinal direction. The insulating body is provided with a limiting groove for accommodating the limiting portion and a heat dissipation groove connected to the limiting groove. Each of the heat dissipation grooves is located between a pair of the limiting grooves.

[0015] Beneficial effects of the present invention: The electrical connector of the present invention is provided with a first terminal for transmitting signals, a second terminal for transmitting power, and a third terminal located between the first and second terminals for detecting signals. The first terminal is arranged on one side of the third terminal in the longitudinal direction, and the second terminal is arranged on the other side of the third terminal in the longitudinal direction, thereby integrating a power solution inside the electrical connector, providing a more stable voltage supply and an optimized grounding design, and improving power supply stability and system integration. In this way, the electrical connector can improve the integrity of high-speed signal transmission, realize power transmission without the need for an external power supply to provide power, simplify system design and wiring, and avoid power supply noise and electromagnetic interference problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional assembly diagram of the electrical connector of the utility model.

[0017] Figure 2 yes Figure 1 An exploded perspective view of the electrical connector shown.

[0018] Figures 3 and 4 yes Figure 1 A partial enlarged view of the electrical connector shown.

[0019] Figure 5 yes Figure 1 A partially exploded view of the electrical connector shown.

[0020] Figure 6 yes Figure 1 A perspective exploded view of the first terminal and the insulating member of the electrical connector.

[0021] Figure 7 yes Figure 1 A perspective view of the second terminal of the electrical connector.

[0022] Figure 8 yes Figure 1 A partial enlarged view of the insulating body of the electrical connector shown.

[0023] Figure 9 yes Figure 6 A partial enlarged view of the first terminal is shown.

[0024] Figure 10 yes Figure 6 A partially enlarged view of the three-dimensional assembly diagram of a row of first terminals and an insulating member of the electrical connector is shown.

[0025] Figure 11 yes Figure 1 A cross-sectional view of a first terminal and a corresponding insulating member of the electrical connector is shown. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. However, the embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on the embodiments are all within the scope of protection of the present invention.

[0027] Please refer to Figures 1 to 11 The figure shows a preferred embodiment of the electrical connector 100 of the present invention. In this embodiment, the electrical connector 100 includes an elongated insulating body 1, a plurality of conductive terminals 2 fixed to the insulating body 1, and a metal shell 3 covering the outside of the insulating body 1. The insulating body 1 has an upwardly open insertion space 101, and the contact arms 201 of the conductive terminals 2 protrude upward from the insertion space 101 to contact the docking element (not shown).

[0028] For ease of explanation, when introducing the electrical connector 100 below, the mating end of the electrical connector 100 will be regarded as the top end and the other end arranged oppositely will be regarded as the bottom end. That is, the up and down direction is the mating direction of the electrical connector 100. At the same time, a direction perpendicular to the up and down direction is defined as the longitudinal direction, and the other direction perpendicular to the up and down direction is defined as the width direction.

[0029] Please refer to Figures 1 to 2 As shown, the conductive terminal 2 includes a first terminal 21 for transmitting signals, a second terminal 22 for transmitting power, and a third terminal 23 located between the first and second terminals 21 and 22 for detecting signals. The first terminal 21 is arranged on one side of the third terminal 23 in the longitudinal direction, and the second terminal 22 is arranged on the other side of the third terminal 23 in the longitudinal direction. In this way, the electrical connector 100 can improve the integrity of high-speed signal transmission, realize power transmission without the need for an external power supply to provide power, and avoid power noise and electromagnetic interference problems.

[0030] Please refer to Figure 6 and Figures 9 to 11 As shown, the first terminal 21 includes a plurality of differential terminal pairs 211 and a ground terminal 213 separating two adjacent differential terminal pairs 211. Each differential terminal pair 211 is composed of two differential signal terminals. In the first terminal 21, the differential terminal pairs 211 and the ground terminals 213 are arranged alternately.

[0031] In this embodiment, the electrical connector 100 further includes an insulating member 4 assembled and fixed within the insulating body 1. The first terminal 21 is embedded and fixed in the insulating member 4. The fixing portion 2102 of the differential terminal pair 211 is partially exposed outward from the groove 41 on the insulating member 4. In this way, the impedance during high-speed signal transmission is adjusted to reduce signal loss and delay.

[0032] Specifically, the insulating member 4 is provided with a plurality of grooves 41 recessed on its surface extending in the longitudinal direction. The grooves 41 are recessed along the width direction of the electrical connector 100. Each of the grooves 41 is arranged corresponding to a differential terminal pair 211 so as to partially contact the fixed portions 2102 of the two differential terminals in the differential terminal pair 211 with the outside air, thereby adjusting the impedance and reducing the loss during signal transmission.

[0033] Each of the first terminals 21 has a fixing portion 2102 extending downward from the contact arm 201 to be fixed in the insulating member 4, and a first welding portion 2103 bent and extended from the fixing portion 2102 to be connected to an external circuit board (not shown). Each of the fixing portions 2102 is provided with a narrowing portion 2104 whose width is narrowed in the longitudinal direction. The height of the narrowing portion 2104 of the grounding terminal 213 extending upward is greater than the height of the narrowing portion 2104 of the differential terminal pair 211, so as to further adjust the impedance, reduce delay and loss, and improve the reliability of high-speed signal transmission.

[0034] A portion of the narrowed portion 2104 of the ground terminal 213 is exposed on the upper side of the insulating member 4 . The narrowed portion 2104 of the differential terminal pair 211 is embedded in the insulating member 4 , with one side surface in the width direction exposed in the groove 41 .

[0035] The insertion space 101 includes first, second and third insertion spaces 1011 , 1012 and 1013 arranged along the longitudinal direction of the insulating body 1 . The first and second insertion spaces 1011 and 1012 each accommodate the first terminal 21 , and the third insertion space 1013 accommodates the second terminal 22 and the third terminal 23 .

[0036] The third plug-in space 1013 includes a first receiving space 1014 for receiving the second terminal 22 and a second receiving space 1015 for receiving the third terminal 23. The size of the second receiving space 1015 in the width direction is smaller than the size of the first receiving space 1014 in the width direction. The locking protrusion 12 is arranged on the outer wall surface corresponding to the second receiving space 1015.

[0037] The insulating body 1 is provided with a locking protrusion 12 protruding from its outer wall surface 11, and a locking groove 13 is formed between the locking protrusion 12 and the outer wall surface 11. The locking protrusion 12 has a pair of recessed notches 121 recessed on its upper side. In this way, by providing the recessed notches 121, it is convenient to exit the injection mold when injection molding the insulating body 1.

[0038] The metal shell 3 is provided with a retaining piece 31 that cooperates with the retaining groove 13. The retaining protrusion 12 and the outer wall surface 11 are connected to each other by a connecting portion 14. The retaining groove 13 is divided into two parts by the connecting portion 14. A pair of retaining pieces 31 are placed on both sides of the connecting portion 14. Each retaining piece 31 has a barb 312 that interferes with the connecting portion 14.

[0039] Please refer to Figure 4 、 Figure 7 and Figure 8 As shown, each second terminal 22 has a flat-plate-shaped holding portion 221, a connecting arm 223 extending upward from the holding portion 221, the contact arm 201 formed by bending downward from the top of the connecting arm 223, and a welding foot 224 formed by tearing and bending from the lower part of the holding portion 221. The second terminals 22 are arranged opposite to each other in the width direction, and the distance between the holding portions 221 of the two oppositely arranged second terminals 22 is greater than the distance between the welding feet 224 of the two oppositely arranged second terminals 22. In this way, the holding force of the second terminal 22 in the insulating body 1 is increased to ensure its bonding strength.

[0040] The retaining portion 221 has a pair of limiting portions 2212 located on its lower side and disposed on both sides of the solder foot 224 in the longitudinal direction. The insulating body 1 is provided with a limiting groove 102 for accommodating the limiting portion 2212 and a heat dissipation groove 103 connected to the limiting groove 102. Each of the heat dissipation grooves 103 is located between a pair of the limiting grooves 102.

[0041] The electrical connector 100 of the present invention is provided with a first terminal 21 for transmitting signals, a second terminal 22 for transmitting power, and a third terminal 23 located between the first and second terminals 21 and 22 for detecting signals. The first terminal 21 is arranged on one side of the third terminal 23 in the longitudinal direction, and the second terminal 22 is arranged on the other side of the third terminal 23 in the longitudinal direction. Thus, a power solution is integrated into the electrical connector 100, providing a more stable voltage supply and an optimized grounding design, thereby improving power supply stability and system integration. In this way, the electrical connector 100 can improve the integrity of high-speed signal transmission, achieve power transmission without the need for an external power supply, simplify system design and wiring, and avoid power supply noise and electromagnetic interference problems.

[0042] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0043] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An electrical connector comprising an elongated insulating body, a plurality of conductive terminals fixed to the insulating body, and a metal housing covering the insulating body, wherein the insulating body has an upwardly open insertion space, and contact arms of the conductive terminals protrude upwardly within the insertion space to contact a mating component, characterized in that: The conductive terminal includes a first terminal for transmitting signals, a second terminal for transmitting power, and a third terminal located between the first and second terminals for detecting signals. The first terminal is arranged on one side of the third terminal in the longitudinal direction, and the second terminal is arranged on the other side of the third terminal in the longitudinal direction.

2. The electrical connector according to claim 1, wherein: The first terminal includes a plurality of differential terminal pairs and a grounding terminal separating two adjacent differential terminal pairs. The electrical connector also has an insulating member assembled and fixed in the insulating body. The first terminal is embedded and fixed in the insulating member, and the fixing portion of the differential terminal pair is partially exposed outward from the groove on the insulating member.

3. The electrical connector according to claim 2, wherein: Each of the first terminals has a fixing portion extending downward from the contact arm to be fixed in the insulating member and a first welding portion bent and extended from the fixing portion to be connected to an external circuit board. Each of the fixing portions is provided with a narrowing portion whose width is narrowed in the longitudinal direction. The height of the narrowing portion of the grounding terminal extending upward is greater than the height of the narrowing portion of the differential terminal pair.

4. The electrical connector according to claim 3, wherein: A portion of the narrowed portion of the ground terminal is exposed on the upper side of the insulating member, and the narrowed portion of the differential terminal pair is buried in the insulating member, with one side surface in the width direction exposed in the groove.

5. The electrical connector according to claim 1, wherein: The plug-in space includes a first plug-in space, a second plug-in space and a third plug-in space arranged along the longitudinal direction of the insulating body. The first and second plug-in spaces accommodate the first terminal, and the third plug-in space accommodates the second terminal and the third terminal.

6. The electrical connector according to claim 5, wherein: The insulating body is provided with a locking protrusion protruding from its outer wall surface, a locking groove is formed between the locking protrusion and the outer wall surface, and the locking protrusion has a pair of recessed notches concavely arranged on its upper side.

7. The electrical connector according to claim 6, wherein: The third plug-in space includes a first receiving space for receiving the second terminal and a second receiving space for receiving the third terminal. The size of the second receiving space in the width direction is smaller than the size of the first receiving space in the width direction. The locking protrusion is arranged on the outer wall surface corresponding to the second receiving space.

8. The electrical connector according to claim 6, wherein: The metal shell is provided with a retaining piece that cooperates with the retaining groove, the retaining protrusion and the outer wall surface are connected to each other by a connecting part, the retaining groove is divided into two parts from the middle part by the connecting part, a pair of retaining pieces are placed on both sides of the connecting part, and each retaining piece has a barb that interferes with the connecting part.

9. The electrical connector according to any one of claims 1 to 8, wherein: Each of the second terminals has a flat-plate-shaped holding portion, a connecting arm extending upward from the holding portion, the contact arm formed by bending downward in the opposite direction from the top of the connecting arm, and a solder foot formed by tearing and bending from the lower part of the holding portion. The second terminals are arranged opposite to each other in the width direction, and the distance between the holding portions of the two oppositely arranged second terminals is greater than the distance between the solder feet of the two oppositely arranged second terminals.

10. The electrical connector according to claim 9, wherein: The retaining portion has a pair of limiting portions located on its lower side and disposed on both sides of the solder foot in the longitudinal direction. The insulating body is provided with a limiting groove for accommodating the limiting portion and a heat dissipation groove connected to the limiting groove. Each of the heat dissipation grooves is located between a pair of the limiting grooves.

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