Grounding terminal, connector and electronic equipment

Abstract

The embodiment of the invention relates to the technical field of connectors, and particularly discloses a grounding terminal, a connector and electronic equipment, the grounding terminal comprises a first contact part, a first elastic arm part, a first holding part and a second contact part, one end part of the first contact part is used for being connected to a butt joint piece, the first elastic arm part is connected to one end of the first contact part, and the second elastic arm part is used for being connected to the butt joint piece. The first elastic arm part is provided with a first contact part and a second contact part, the first holding part is connected to one end, far away from the first contact part, of the first elastic arm part, the first holding part is used for being fixed on an insulation body and is used for being connected to a conductive piece, the second contact part is connected to the other end of the first contact part, and the second contact part is used for being connected to the conductive piece. Through the mode, the end part of the other end of the first contact part is used for being connected to the conductive piece through the second contact part, and stubs on the first contact part are eliminated to form an effective signal return path, so that crosstalk and resonance are reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of connectors, and in particular to a grounding terminal, a connector and an electronic device. Background Art

[0002] A connector is a device that bridges two electronic devices, making the two electronic devices electrically connected and conducting, and realizing the transmission of signals, data and power between the two electronic devices. A connector usually includes an insulating body, multiple grounding terminals, multiple signal terminal pairs and conductive parts, wherein the multiple grounding terminals, multiple signal terminal pairs and conductive parts are all arranged on the insulating body, and the contact terminals are connected to the conductive parts.

[0003] However, in the process of implementing the embodiments of the present invention, the inventors discovered that: currently, the grounding terminal includes a contact portion, an elastic arm portion and a retaining portion, and the contact portion, the elastic arm portion and the retaining portion are connected in sequence, the retaining portion is connected to the conductive member, and the portion of the contact portion facing one end of the elastic arm portion is used to connect to the docking member, so that a stump (a useless signal transmission path) is formed between the portion used to connect to one end of the docking member and the end of the contact portion away from the other end of the elastic arm portion, causing the return signal to be radiated and reflected back at the end of the stump away from the elastic arm portion, thereby causing crosstalk and resonance in the signals on adjacent high-speed transmission paths. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a grounding terminal, which can solve the problem that a residual stump is formed between the part connected to one end of the docking piece and the end of the other end of the contact part away from the elastic arm part, which causes the return signal to be radiated or reflected back at the end of the residual stump away from the elastic arm part, thereby causing crosstalk and resonance of signals on adjacent high-speed transmission paths.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a grounding terminal, including a first contact portion, a first elastic arm portion, a first retaining portion and a second contact portion, wherein a portion of one end of the first contact portion is used to connect to a docking member, the first elastic arm portion is connected to one end of the first contact portion, the first retaining portion is connected to an end of the first elastic arm portion away from the first contact portion, the first retaining portion is used to be fixed to an insulating body and to be connected to a conductive member, the second contact portion is connected to the end portion of the other end of the first contact portion, and the second contact portion is used to be connected to a conductive member.

[0006] Optionally, the second contact portion is arranged to be inclined toward the first holding portion.

[0007] Optionally, the first elastic arm portion is provided with a through slot.

[0008] Optionally, the ground terminal includes at least one third contact portion, the third contact portion is connected to the first elastic arm portion, and the third contact portion is used to be connected to a conductive member.

[0009] Optionally, the first retaining portion and the first elastic arm portion enclose a receiving groove, and the receiving groove is used to accommodate the conductive member portion.

[0010] In order to solve the above technical problems, another technical solution adopted by the present invention is: providing a connector, comprising an insulating body, a plurality of signal terminal pairs, a conductive member and a plurality of the above grounding terminals, the insulating body being provided with a slot for the mating member to be inserted, the signal terminal pair comprising two signal terminals, the signal terminal, the grounding terminal and the conductive member being all provided on the insulating body, the signal terminal partially extending into the slot, the first contact portion of the grounding terminal partially extending into the slot, the signal terminal pair and the grounding terminal being arranged along a first direction, forming an arrangement in which one grounding terminal, one signal terminal pair and one grounding terminal are a group;

[0011] Each of the signal terminal pairs has a first center distance and a second center distance, and the first center distance is greater than the second center distance, so that the parts of each of the signal terminal pairs at the second center distance are close to each other.

[0012] Optionally, the signal terminal includes a fourth contact portion, a second elastic arm portion, a connecting portion and a second retaining portion, the fourth contact portion, the second elastic arm portion, the connecting portion and the second retaining portion are connected in sequence, and a portion of the fourth contact portion extends into the slot;

[0013] The distance between the center lines of the fourth contact portions of each pair of signal terminals forms the first center distance;

[0014] The center lines of the second elastic arm portion, the connecting portion and the second retaining portion are collinear, and the distance between the center lines of the second elastic arm portion of each signal terminal pair forms the second center distance, so that the second elastic arm portion, the connecting portion and the second retaining portion of each signal terminal pair are close to each other.

[0015] Optionally, the signal terminal includes a first welding portion, the first welding portion is connected to the second holding portion, and a center line of the first welding portion is colinear with a center line of the fourth contact portion.

[0016] Optionally, the center line of the first contact portion of the grounding terminal and the center line of the adjacent fourth contact portion form a third center distance, the center line between the first contact portions of two adjacent grounding terminals forms a fourth center distance, and the third center distance, the fourth center distance and the first center distance are all equal.

[0017] Optionally, the ground terminal includes a second welding portion, and a center line of the second welding portion is colinear with a center line of the first contact portion of the ground terminal.

[0018] Optionally, the insulating body is provided with a first receiving groove, the first receiving groove is connected to the slot, and the two second elastic arm portions of the signal terminal pair are received in the first receiving groove.

[0019] In order to solve the above technical problem, another technical solution adopted by the present invention is: to provide an electronic device, comprising the above connector.

[0020] In an embodiment of the present invention, the grounding terminal includes a first contact portion, a first elastic arm portion, a first retaining portion, and a second contact portion, wherein a portion of one end of the first contact portion is used to connect to a docking member, the first elastic arm portion is connected to one end of the first contact portion, the first retaining portion is connected to one end of the first elastic arm portion away from the first contact portion, the first retaining portion is used to be fixed to an insulating body and used to connect to a conductive member, the second contact portion is connected to the end of the other end of the first contact portion, and the second contact portion is used to connect to the conductive member. The end of the other end of the first contact portion is used to connect to the conductive member through the second contact portion, and the stub on the first contact portion is eliminated to form an effective signal return path, so that the signal is guided to the conductive member by the second contact portion at the end of the other end of the first contact portion, thereby preventing the signal from radiating outward at the end of the stub away from the first contact portion to interfere with adjacent signals, thereby reducing crosstalk, and preventing the signal from being reflected back at the end of the stub away from the first contact portion, thereby reducing resonance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0022] Figure 1 is a schematic structural diagram of a connector according to an embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of an exploded structure of a connector according to an embodiment of the present invention;

[0024] Figure 3 is a schematic bottom view of the structure of a connector according to an embodiment of the present invention;

[0025] Figure 4 is a schematic structural cross-sectional diagram of a connector according to an embodiment of the present invention;

[0026] Figure 5is a schematic structural diagram of an insulating body of a connector according to an embodiment of the present invention;

[0027] Figure 6 is a schematic cross-sectional view of the structure of the insulating body of the connector according to an embodiment of the present invention;

[0028] Figure 7 is a schematic structural diagram of a signal terminal and a ground terminal of a connector according to an embodiment of the present invention;

[0029] Figure 8 is a schematic front view of the structure of the signal terminal and the ground terminal of the connector according to an embodiment of the present invention;

[0030] Fig. 9 It is a schematic structural diagram of a conductive member of a connector according to an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 100. Connector;

[0033] 1. Insulating body; 11. Slot; 12. First receiving slot; 13. Second receiving slot; 14. Third receiving slot; 15. Fixing slot; 16. Fourth receiving slot; 17. Fifth receiving slot; 18. Sixth receiving slot;

[0034] 2. signal terminal; 21. fourth contact portion; 22. second elastic arm portion; 23. connecting portion; 24. second retaining portion; 25. first welding portion;

[0035] 3. ground terminal; 31. first contact portion; 32. first elastic arm portion; 321. through slot; 33. first retaining portion; 34. second contact portion; 35. third contact portion; 36. second welding portion; 37. receiving slot;

[0036] 4. Conductive member; 41. Opening. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0039] This application provides a connector 100, see Figure 1-Figure 4 The connector 100 includes an insulating body 1, a plurality of signal terminal pairs, a plurality of grounding terminals 3 and a conductive member 4. The signal terminal pairs, the grounding terminals 3 and the conductive member 4 are all arranged on the insulating body 1. The signal terminal pair includes two signal terminals 2, and the signal terminal pair and the grounding terminal 3 are arranged along the first direction X, forming an arrangement of one grounding terminal 3, one signal terminal pair and one grounding terminal 3 as a group, and the grounding terminal 3 is connected to the conductive member 4. Among them, the insulating body 1 is used for the docking member to be plugged in, and the signal terminal pair and the grounding terminal 3 are both used to connect to the docking member and the circuit board, so that the docking member is electrically connected to the circuit board.

[0040] In some embodiments, the signal terminal pairs and the ground terminals 3 are arranged in two rows along a second direction Y, and the second direction Y is perpendicular to the first direction X.

[0041] In some embodiments, the signal terminal 2 is a differential signal terminal.

[0042] In some embodiments, the docking component is an electronic component such as a graphics card, a sound card, a network adapter, etc.

[0043] For the above insulating body 1, please refer to Figure 5 and Figure 6The insulating body 1 is provided with a slot 11, a first receiving slot 12, a second receiving slot 13, a third receiving slot 14, a fixing slot 15, a fourth receiving slot 16, a fifth receiving slot 17 and a sixth receiving slot 18. The slot 11 passes through one end of the insulating body 1, and the slot 11 extends along the first direction X. The slot 11 is used for plugging the docking member. The first receiving slot 12 passes through the other end of the insulating body 1, and the first receiving slot 12 and the second receiving slot 13 are both connected to the slot 11. The third receiving slot 14 is connected to the first receiving slot 12. The fixing slot 15 passes through the other end of the insulating body 1, and the fixing slot 15 is connected to the third receiving slot 14. Among them, the first receiving slot 12, the second receiving slot 13, the third receiving slot 14 and the fixing slot 15 all receive the signal terminal 2. The fourth receiving slot 16 passes through the other end of the insulating body 1, and the fourth receiving slot 16 is connected to the slot 11. The fifth receiving slot 17 passes through the other end of the insulating body 1, and the fifth receiving slot 17 is connected to the fourth receiving slot 16. The sixth receiving groove 18 passes through the other end of the insulating body 1 and is connected to the fifth receiving groove 17. The fourth receiving groove 16 and the sixth receiving groove 18 receive the ground terminal 3, and the fifth receiving groove 17 receives the conductive member 4.

[0044] For the above signal terminal 2, refer to Figure 7 and Figure 8 The signal terminal 2 includes a fourth contact portion 21, a second elastic arm portion 22, a connecting portion 23, a second retaining portion 24 and a first welding portion 25. The fourth contact portion 21, the second elastic arm portion 22, the connecting portion 23, the second retaining portion 24 and the first welding portion 25 are connected in sequence. The center line of the fourth contact portion 21 and the center line of the first welding portion 25 are collinear. The center lines of the second elastic arm portion 22, the center lines of the connecting portion 23 and the center lines of the second retaining portion 24 are all collinear. The center lines of the fourth contact portions 21 of each signal terminal pair form a first center distance La. The distance between the center lines of the second elastic arm portions 22 of each signal terminal pair forms a second center distance Lb. The first center distance La is greater than the second center distance Lb, so that the second elastic arm portions 22, the connecting portion 23 and the second retaining portion 24 between the signal terminal pairs are close to each other, thereby increasing the coupling inside the signal terminal pair. The fourth contact portion 21 is received in the second receiving groove 13, and a portion of the fourth contact portion 21 extends into the slot 11. The fourth contact portion 21 is used to connect to the docking member. The second elastic arm portion 22 is received in the first receiving groove 12. The connecting portion 23 is received in the third receiving groove 14, and one end of the connecting portion 23 connected to the second elastic arm portion 22 extends into the first receiving groove 12, and one end of the connecting portion 23 connected to one end of the second retaining portion 24 extends into the fixing groove 15. The second retaining portion 24 is clamped in the fixing groove 15 to fix the signal terminal 2, and one end of the second retaining portion 24 connected to the first welding portion 25 extends out of the fixing groove 15. The first welding portion 25 is located outside the insulating body 1, and the first welding portion 25 is used to connect to the circuit board.

[0045] In some embodiments, the thickness of the first contact portion 31, the thickness of the second elastic arm portion 22, the thickness of the connecting portion 23, the thickness of the second retaining portion 24 and the thickness of the first welding portion 25 are the thickness of the plate, so that the signal terminal 2 is a bent signal terminal. Compared with the blanking signal terminal, the bent signal terminal can save materials during production and processing, thereby reducing production and processing costs.

[0046] It should be noted that the width of the fourth contact portion 21 is smaller than that of the second elastic arm portion 22, and the gap between the two second elastic arm portions 22 of the signal terminal pair is relatively small. Therefore, the two second elastic arm portions 22 of the signal terminal pair are both accommodated in the first receiving groove 12, avoiding the situation where the insulating body 1 is provided with a small width barrier strip which is easy to break.

[0047] In some embodiments, the signal terminal pairs arranged in two rows along the second direction Y are staggered. In other words, the signal terminal pairs in one row are opposite to the two ground terminals 3 in the other row.

[0048] For ground terminal 3 above, see Figure 7 and Figure 8The ground terminal 3 includes a first contact portion 31, a first elastic arm portion 32, a first retaining portion 33, a second contact portion 34, at least one third contact portion 35 and a second welding portion 36. The center line of the first contact portion 31 is collinear with the center line of the second welding portion 36. The center line of the first contact portion 31 and the center line of the adjacent fourth contact portion 21 form a third center distance Lc. The center line between two adjacent first contact portions 31 forms a fourth center distance Ld. The third center distance Lc, the fourth center distance Ld and the first center distance La are all equal, so as to increase the distance between the second elastic arm portion 22, the connecting portion 23 and the second retaining portion 24 of the adjacent signal terminal pair, thereby increasing the distance between the signal transmission paths of the adjacent signal terminal pair and reducing the crosstalk between the adjacent signal terminal pairs. The first contact portion 31 is received in the fourth receiving groove 16, a portion of the first contact portion 31 extends into the slot 11, and a portion of one end of the first contact portion 31 is used to connect to the docking member. The first elastic arm portion 32 is received in the fourth receiving groove 16, the first elastic arm portion 32 is connected to one end of the first contact portion 31, and one end of the first elastic arm portion 32 away from the first contact portion 31 extends out of the fourth receiving groove 16. The first retaining portion 33 is clamped in the sixth receiving groove 18, one end of the first retaining portion 33 extends out of the sixth receiving groove 18, one end of the first retaining portion 33 is connected to one end of the first elastic arm portion 32 away from the first contact portion 31, and the first retaining portion 33 and the first elastic arm portion 32 enclose a receiving groove 37, and the receiving groove 37 receives at least part of the conductive member 4. The second contact portion 34 is received in the fourth receiving groove 16, the second contact portion 34 is connected to the end of the other end of the first contact portion 31, and the second contact portion 34 is inclined toward the first retaining portion 33. The third contact portion 35 is received in the fourth receiving groove 16, and the third contact portion 35 is connected to the first elastic arm portion 32. The second soldering portion 36 is located outside the insulating body 1 . The second soldering portion 36 is connected to one end of the first fixing portion 33 . The second soldering portion 36 is used to be connected to a circuit board.

[0049] The first elastic arm portion 32 is provided with a through slot 321 , and the through slot 321 is used to reduce the elastic deformation force of the first elastic arm portion 32 , thereby reducing the force of the plugging of the docking piece.

[0050] In some embodiments, the center line of the first contact portion 31 , the center line of the first elastic arm portion 32 , the center line of the first retaining portion 33 , and the center line of the first welding portion 25 are all collinear.

[0051] In some embodiments, the first center distance La, the third center distance Lc, and the fourth center distance Ld are all 1 mm, and the second center distance Lb is 0.8 mm.

[0052] For the above conductive member 4, see Fig. 9The conductive member 4 is received in the fifth receiving groove 17, and the conductive member 4 is connected to the first holding portion 33, the second contact portion 34 and the third contact portion 35. The conductive member 4 optimizes the signal return path of the ground terminal 3, and effectively reduces crosstalk and resonance. Specifically, the conductive member 4 is connected to the second contact portion 34, and the stub on the first contact portion 31 is eliminated to form an effective signal return path, so that the signal is guided to the conductive member 4 by the second contact portion 34 at the end of the other end of the first contact portion 31, so as to avoid the signal radiating outward at the end of the stub away from the first contact portion 31 to interfere with the adjacent signal, thereby reducing crosstalk, and avoiding the signal from being reflected back at the end of the stub away from the first contact portion 31, thereby reducing resonance. The conductive member 4 is provided with an opening 41, and the opening 41 is close to the second holding portion 24 to improve the characteristic impedance of the second holding portion 24. The second contact portion 34 is arranged obliquely toward the first holding portion 33, which is conducive to reducing the size of the conductive member 4, thereby reducing the material of the conductive member 4.

[0053] In some embodiments, since the signal terminals 2 are arranged in two rows along the second direction Y, correspondingly, the number of the conductive members 4 is two, and one conductive member 4 is connected to one row of ground terminals 3 .

[0054] The present invention further provides an embodiment of an electronic device, including the above-mentioned connector 100. The structure and function of the connector 100 can be found in the above-mentioned embodiment, which will not be described in detail here.

[0055] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not used as additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the present invention; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the protection scope of the claims attached to the present invention.

Claims

1. A grounding terminal, characterized in that: include: A first contact portion, wherein a portion of one end of the first contact portion is used to connect to a docking member; A first elastic arm portion connected to one end of the first contact portion; A first retaining portion connected to an end of the first elastic arm portion away from the first contact portion, the first retaining portion being used to be fixed to the insulating body and connected to the conductive member; The second contact portion is connected to the other end of the first contact portion, and the second contact portion is used to be connected to a conductive member.

2. The ground terminal according to claim 1, characterized in that: The second contact portion is arranged obliquely toward the first holding portion.

3. The ground terminal according to claim 1, characterized in that: The first elastic arm portion is provided with a through slot.

4. The ground terminal according to claim 1, characterized in that: The ground terminal includes at least one third contact portion, the third contact portion is connected to the first elastic arm portion, and the third contact portion is used to be connected to a conductive member.

5. The grounding terminal according to any one of claims 1 to 4, characterized in that: The first retaining portion and the first elastic arm portion enclose a receiving groove, and the receiving groove is used to accommodate the conductive member portion.

6. A connector, characterized in that: The device comprises an insulating body, a plurality of signal terminal pairs, a conductive member, and a plurality of grounding terminals as claimed in any one of claims 1 to 5, wherein the insulating body is provided with a slot for inserting a mating member, the signal terminal pair comprises two signal terminals, the signal terminal, the grounding terminal and the conductive member are all provided on the insulating body, the signal terminal partially extends into the slot, the first contact portion of the grounding terminal partially extends into the slot, the signal terminal pair and the grounding terminal are arranged along a first direction, forming an arrangement in which one grounding terminal, one signal terminal pair and one grounding terminal are a group; Each of the signal terminal pairs has a first center distance and a second center distance, and the first center distance is greater than the second center distance, so that the parts of each of the signal terminal pairs at the second center distance are close to each other.

7. The connector according to claim 6, characterized in that: The signal terminal comprises a fourth contact portion, a second elastic arm portion, a connecting portion and a second retaining portion, wherein the fourth contact portion, the second elastic arm portion, the connecting portion and the second retaining portion are connected in sequence, and a portion of the fourth contact portion extends into the slot; The distance between the center lines of the fourth contact portions of each pair of signal terminals forms the first center distance; The center lines of the second elastic arm portion, the connecting portion and the second retaining portion are collinear, and the distance between the center lines of the second elastic arm portion of each signal terminal pair forms the second center distance, so that the second elastic arm portion, the connecting portion and the second retaining portion of each signal terminal pair are close to each other.

8. The connector according to claim 7, characterized in that: The signal terminal includes a first welding portion, the first welding portion is connected to the second holding portion, and a center line of the first welding portion is colinear with a center line of the fourth contact portion.

9. The connector according to claim 8, characterized in that: The center line of the first contact portion of the grounding terminal and the center line of the adjacent fourth contact portion form a third center distance, the center lines between the first contact portions of two adjacent grounding terminals form a fourth center distance, and the third center distance, the fourth center distance and the first center distance are all equal.

10. The connector according to claim 9, characterized in that: The ground terminal includes a second welding portion, a center line of the second welding portion is colinear with a center line of the first contact portion of the ground terminal.

11. The connector according to claim 7, characterized in that: The insulating body is provided with a first receiving groove, the first receiving groove is connected to the slot, and the two second elastic arms of the signal terminal pair are received in the first receiving groove.

12. An electronic device, characterized in that: Comprising a connector as described in any one of claims 6-11.

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