High-frequency signal terminal and connector

Abstract

The utility model relates to a high-frequency signal terminal, which comprises a body, a welding part and an inserting part, the welding part and the inserting part are fixedly connected to the two ends of the body respectively. A plurality of digging holes are formed in one end, close to the welding part, of the body. According to the high-frequency signal terminal provided by the utility model, the digging hole is arranged at one end of the body close to the welding part, so that the sectional area of the welding end of the high-frequency signal terminal is reduced, the capacitance is reduced, the characteristic impedance at the welding end is increased, the consistency with the characteristic impedance of a whole circuit is improved, and high-frequency signal transmission is facilitated. The high-frequency signal terminal provided by the utility model has the advantage of good signal transmission effect. The utility model also relates to a connector comprising the high-frequency signal terminal.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of connector, especially a kind of high-frequency signal terminal and connector. BACKGROUND

[0002] The existing high-frequency connector includes an insulating body, a plurality of high-frequency signal terminals and a plurality of grounding shielding plates. The plurality of high-frequency signal terminals are inserted into the insulating body in rows, one end is used for welding with a circuit board, and the other end is used for connecting with the conductor of other connectors. The grounding shielding plate is inserted into the insulating body and located between each row of high-frequency signal terminals to prevent signal crosstalk. After the welding end of the high-frequency signal terminal is welded with the solder pad on the circuit board, the high-frequency signal transmission interference is often large, which leads to signal distortion. SUMMARY

[0003] Therefore, the utility model discloses a high-frequency signal terminal, which has the advantages of good signal transmission effect.

[0004] A high-frequency signal terminal includes a body, a welding portion and an insertion portion. The welding portion and the insertion portion are respectively fixedly connected to two ends of the body. A plurality of holes are formed in one end of the body close to the welding portion. The high-frequency signal terminal has the advantages of reducing the cross-sectional area of the welding end of the high-frequency signal terminal, reducing the capacitance, increasing the characteristic impedance at this position, improving the consistency of the characteristic impedance with the entire circuit, and being conducive to the transmission of high-frequency signals.

[0005] Further, one end of the welding portion is fixedly connected to one end of the body away from the insertion portion. The side surface of the free end of the welding portion away from the insertion portion is arranged in a straight face. The side surface of the welding portion close to the insertion portion is arranged in an inclined face. After the welding portion is welded with the solder pad of the circuit board by stacking the solder paste, the volume of the welding portion is still small, the characteristic impedance is slightly affected, and the high-frequency signal transmission is stable.

[0006] Further, an arc-shaped notch is arranged at the connection between the side surface of the welding portion away from the insertion portion and the body. The cross-sectional area of the welding end of the high-frequency signal terminal is reduced, the capacitance is reduced, the characteristic impedance is increased, and the high-frequency signal transmission is facilitated.

[0007] Further, a stop portion is vertically fixedly connected to one end of the body away from the insertion portion.

[0008] The utility model provides a connector, including insulation main part, a plurality of above high frequency signal terminal and ground shield plate, a plurality of high frequency signal terminal is distributed and inserts in the insulation main part, the body and the insert department are located in the insulation main part, the welding portion exposes outside the insulation main part, the ground shield plate inserts in the insulation main part, and is located between double rows high frequency signal terminal, the connector of the utility model reduces the cross section area of high frequency signal terminal welding end, makes the capacitance small, characteristic impedance becomes big, improves the characteristic impedance consistency with whole circuit, is favorable to transmission high frequency signal.

[0009] Further, the insulation main body includes a first main body and a second main body; both ends of the high frequency signal terminal and the ground shield plate are respectively inserted into the first main body and the second main body; the body is located in the first main body, the insertion part is located in the second main body, and the welding part is exposed at one end of the first main body away from the second main body. By inserting the high frequency signal terminal and the ground shield plate into the first main body and the second main body, compared with using only one main body, the difficulty of injection molding and the cost are reduced, and the deformation resistance of the connector is also improved.

[0010] Further, the first main body is provided with a plurality of first terminal grooves arranged in parallel, a plurality of the first terminal grooves are arranged in double rows, and each row of the first terminal grooves is arranged at intervals; the body is inserted into the first terminal groove; the second main body is provided with a plurality of second terminal grooves arranged in parallel, the second terminal grooves correspond to the first terminal grooves, and the insertion part is inserted into the second terminal groove.

[0011] Further, two first hollow areas arranged in parallel are provided on one end face of the first main body away from the second main body, and one first hollow area is connected to one row of the first terminal grooves; a plurality of second hollow areas arranged at intervals are provided on one end face of the first main body close to the second main body, a plurality of the second hollow areas are arranged in double rows, and one second hollow area is connected to a plurality of the first terminal grooves. The first hollow area and the second hollow area increase the air volume filling of the welding end of the high frequency signal terminal, reduce the dielectric constant, increase the inductance during signal transmission, and increase the matching of the characteristic impedance of this place and the characteristic impedance of the whole circuit.

[0012] Further, the ground shield plate includes a shielding part and two positioning parts; one end of the shielding part is inserted into the first main body, and the other end of the shielding part is inserted into the second main body; the two positioning parts are respectively fixed to two sides of one end of the shielding part away from the second main body and abut against the first main body.

[0013] Further, the first body is provided with a first shielding slot for inserting one end of the shielding part, the second body is provided with a second shielding slot for inserting the other end of the shielding part, and the first shielding slot and the second shielding slot are both connected with the shielding part through concave-convex structures.

[0014] For better understanding and implementation, the following will be described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the connector of the present application;

[0016] Figure 2 It is a front and rear perspective view of the first body of the present application;

[0017] Figure 3 It is a structural schematic view of the second body of the present application;

[0018] Figure 4 It is a structural schematic view of the high-frequency signal terminal and the grounding shielding plate of the present application.

[0019] In the drawings:

[0020] 1 - first body; 11 - first terminal slot; 111 - first stop recess; 12 - first shielding slot; 121 - abutting boss; 13 - first hollowed-out area; 14 - second hollowed-out area;

[0021] 2 - second body; 21 - second terminal slot; 22 - second shielding slot;

[0022] 3 - high-frequency signal terminal; 31 - body; 311 - hole; 312 - arc-shaped notch; 32 - inserting part; 33 - welding part; 34 - stop part;

[0023] 4 - grounding shielding plate; 41 - shielding part; 42 - positioning part;

[0024] 5 - circuit board. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0026] In the description of the utility model, it needs to explain, the term "vertical direction", "upper", "lower", "horizontal" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a specific orientation, structure and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it also needs to explain that, unless otherwise specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0028] Please refer to Figure 1 The utility model provides a kind of connector, including first body 1, second body 2, several high-frequency signal terminals 3 and ground shield plate 4. One end of high-frequency signal terminal 3 is inserted in first body 1, for welding with circuit board 5, the other end of high-frequency signal terminal 3 is inserted in second body 2, for connecting with other connector conductor. One end of ground shield plate 4 is inserted in first body 1, the other end of ground shield plate 4 is inserted in second body 2, for shielding the signal of different high-frequency signal terminals 3, prevent its signal crosstalk.

[0029] In the embodiment, high-frequency signal terminal 3 is arranged in two rows, and ground shield plate 4 is located between the two rows of high-frequency signal terminals 3 to prevent signal crosstalk between the two rows of high-frequency signal terminals 3.

[0030] Please refer to Figure 2 First body 1 is provided with a plurality of first terminal grooves 11 arranged in parallel, and the plurality of first terminal grooves 11 are arranged in two rows. Each row of first terminal grooves 11 is arranged at intervals for inserting high-frequency signal terminals 3. Preferably, the two rows of first terminal grooves 11 are symmetrically arranged.

[0031] The first terminal groove 11 penetrates the front and rear end faces of the first body 1. Further, a first stop groove 111 is provided at the rear end of the first terminal groove 11 for inserting and stopping the high-frequency signal terminal 3.

[0032] The first main body 1 is provided with a first shielding groove 12 penetrating the front and rear end faces of the first main body 1 and located between the double rows of first terminal grooves 11, for inserting a grounding shielding plate 4. Further, the upper and lower end faces of the first shielding groove 12 are provided with a plurality of abutting bosses 121, when the grounding shielding plate 4 is inserted into the first shielding groove 12, the abutting bosses 121 abut the outer surface of the grounding shielding plate 4, so that the grounding shielding plate 4 is stably inserted into the first shielding groove 12 and is not easy to bend. Further, the rear end of the first shielding groove 12 is provided with a clamping table for clamping the grounding shielding plate 4.

[0033] Further, the first main body 1 is provided with two first hollow areas 13 and a plurality of second hollow areas 14. The two first hollow areas 13 are arranged in parallel and located at the rear end face of the first main body 1, and one first hollow area 13 is connected to one row of first terminal grooves 11. The plurality of second hollow areas 14 are arranged in intervals on the front end face of the first main body 1 and are distributed in double rows, and one second hollow area 14 is connected to a plurality of first terminal grooves 11. In this application, the first hollow area 13 and the second hollow area 14 increase the air volume filling of the welding end of the high-frequency signal terminal 3, reduce the dielectric constant, increase the inductance during signal transmission, and increase the characteristic impedance of this place to match the characteristic impedance of the entire circuit.

[0034] Please refer to Figure 3 The second main body 2 is provided with a plurality of second terminal grooves 21 arranged in parallel, and the second terminal grooves 21 correspond one by one to the first terminal grooves 11, for inserting the high-frequency signal terminal 3. Further, the second terminal groove 21 is provided with a second stop groove for inserting and stopping the high-frequency signal terminal 3.

[0035] The second main body 2 is provided with a second shielding groove 22 located between the double rows of second terminal grooves 21 and corresponding to the first shielding groove 12, for inserting the grounding shielding plate 4. Further, the second shielding groove 22 is provided with a plurality of clamping grooves for clamping the grounding shielding plate 4.

[0036] Further, the outer sides of the first main body 1 and the second main body 2 are each provided with a plurality of hollow channels for reducing the weight of the first main body 1 and the second main body 2 and reducing the possibility of product deformation.

[0037] Compared with other connectors having only one insulating main body, the present application is provided with the first main body 1 and the second main body 2, and the two ends of the high-frequency signal terminal 3 are respectively inserted into the first main body 1 and the second main body 2, which reduces the difficulty and cost of injection molding processing and also improves the anti-deformation ability of the connector.

[0038] Please refer to Figure 4The high-frequency signal terminal 3 comprises a body 31, an inserting part 32, a soldering part 33 and a stop part 34. The inserting part 32 is fixedly connected to one end of the body 31, and the longitudinal section width of the inserting part 32 is smaller than that of the body 31. The soldering part 33 is vertically fixedly connected to the end of the body 31 away from the inserting part 32, and is used for soldering with the circuit board 5. The stop part 34 is vertically fixedly connected to the end of the body 31 away from the inserting part 32. As preferred, the soldering part 33 and the stop part 34 are respectively located on both sides of the body 31, which is convenient for manufacturing.

[0039] During assembly, the high-frequency signal terminal 3 is inserted from the rear of the first body 1, the body 31 is inserted into the first terminal groove 11, and the stop part 34 is clamped into the first stop recess 111; the inserting part 32 is inserted into the second terminal groove 21, and the end of the body 31 close to the inserting part 32 abuts against the second stop recess; the soldering part 33 is exposed on the rear end surface of the first body 1 and is arranged in a direction away from the first shielding groove 12.

[0040] Further, a plurality of holes 311 are arranged on the end of the body 31 close to the soldering part 33. As preferred, the holes 311 are waist-shaped holes, and the length of the waist-shaped holes is arranged along the length direction of the body 31. In the present application, the arrangement of the holes 311 reduces the cross-sectional area of the high-frequency signal terminal 3 close to the soldering end, reduces the capacitance, increases the characteristic impedance at this position, improves the consistency with the characteristic impedance of the whole circuit, and is beneficial to the transmission of high-frequency signals. As preferred, the number of the holes 311 on each body 31 is two.

[0041] Further, the side of the soldering part 33 away from the inserting part 32 is arranged as a straight surface, and the side of the soldering part 33 close to the inserting part 32 and away from the end of the stop part 34 is arranged as an inclined surface, so that the volume of the soldering part 33 is still small after the soldering part 33 is soldered with the solder paste on the pad of the circuit board 5, the influence on the characteristic impedance is small, and it is beneficial to the stable transmission of high-frequency signals.

[0042] Further, an arc-shaped notch 312 is arranged at the connection between the side of the soldering part 33 away from the inserting part 32 and the body 31, so that the cross-sectional area of the soldering end of the high-frequency signal terminal 3 is reduced, the capacitance is reduced, the characteristic impedance is increased, and it is beneficial to the transmission of high-frequency signals.

[0043] Further, the body 31 and the inserting part 32 are both provided with clamping points, and when the body 31 is inserted into the first terminal groove 11 and the inserting part 32 is inserted into the second terminal groove 21, the clamping points are abutted against the inner wall surface of the corresponding first terminal groove 11 or second terminal groove 21, so that the high-frequency signal terminal 3 is stably inserted into the first body 1 and the second body 2.

[0044] The grounding shielding plate 4 comprises a shielding part 41 and two positioning parts 42. In the embodiment, the shielding part 41 is plate-shaped, and a plurality of retreat-stop bosses are arranged on the shielding part 41, which are used for cooperating with clamping posts or clamping grooves. The two positioning parts 42 are respectively fixedly connected to two sides of one end of the shielding part 41. During assembly, the grounding shielding plate 4 is sequentially inserted into the first shielding groove 12 and the second shielding groove 22 from the rear of the first main body 1 until the retreat-stop bosses are clamped with the clamping posts or the clamping grooves, and the positioning parts 42 abut against the rear end face of the first main body 1.

[0045] The above-mentioned embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that, for the ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and the present application also intends to include these modifications and improvements.

Claims

1. A high frequency signal terminal, characterized by: The utility model relates to a high frequency signal terminal, including body, welding portion and inserting portion, welding portion and inserting portion are fixedly connected to the both ends of body respectively, and the one end of body near welding portion is equipped with a plurality of hollow holes.

2. The high-frequency signal terminal according to claim 1, characterized in that: The one end of welding portion is fixedly connected to the one end of body far from inserting portion, and the side face of free end of welding portion far from inserting portion is provided as a straight face, and the side face of welding portion near inserting portion is an inclined plane.

3. The high-frequency signal terminal according to claim 2, characterized in that: The side face of welding portion far from inserting portion is provided with an arc-shaped notch at the connection with body.

4. The high-frequency signal terminal according to claim 3, characterized in that: It also includes a stop part, which is vertically fixed to the one end of body far from inserting portion.

5. A connector characterized by: The utility model relates to a high frequency signal terminal, including body, welding portion and inserting portion, welding portion and inserting portion are fixedly connected to the both ends of body respectively, and the one end of body near welding portion is equipped with a plurality of hollow holes.

6. The connector of claim 5, wherein: The utility model relates to a high frequency signal terminal, including body, welding portion and inserting portion, welding portion and inserting portion are fixedly connected to the both ends of body respectively, and the one end of body near welding portion is equipped with a plurality of hollow holes.

7. The connector of claim 6, wherein: The utility model relates to a high frequency signal terminal, including body, welding portion and inserting portion, welding portion and inserting portion are fixedly connected to the both ends of body respectively, and the one end of body near welding portion is equipped with a plurality of hollow holes.

8. The connector of claim 7, wherein: The utility model relates to a high frequency signal terminal, including body, welding portion and inserting portion, welding portion and inserting portion are fixedly connected to the both ends of body respectively, and the one end of body near welding portion is equipped with a plurality of hollow holes.

9. The connector of claim 8, wherein: The utility model relates to a high frequency signal terminal, including body, welding portion and inserting portion, welding portion and inserting portion are fixedly connected to the both ends of body respectively, and the one end of body near welding portion is equipped with a plurality of hollow holes.

10. The connector of claim 9, wherein: The utility model relates to a high frequency signal terminal, including body, welding portion and inserting portion, welding portion and inserting portion are fixedly connected to the both ends of body respectively, and the one end of body near welding portion is equipped with a plurality of hollow holes. The utility model relates to a high frequency signal terminal, including body, welding portion and inserting portion, welding portion and inserting portion are fixedly connected to the both ends of body respectively, and the one end of body near welding portion is equipped with a plurality of hollow holes. The utility model relates to a high frequency signal terminal, including body, welding portion and inserting portion, welding portion and inserting portion are fixedly connected to the both ends of body respectively, and the one end of body near welding portion is equipped with a plurality of hollow holes.

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