High-frequency vertical PCB welding type SMA connector

Abstract

The utility model discloses a high-frequency vertical PCB welding type SMA connector, and particularly relates to the technical field of electronic equipment, the high-frequency vertical PCB welding type SMA connector comprises a PCB and an SMA connection main body, the top of the PCB is fixedly provided with the SMA connection main body, and the SMA connection main body comprises a wiring abdicating groove, a connection enhancing pin and a PCB matching ring. The four edges of the bottom of the wiring abdicating groove are provided with connection enhancing pins, and the centers of the four groups of connection enhancing pins are fixedly provided with PCB matching rings. The wiring abdicating groove 1 can be used for surface PCB wiring short circuit, meanwhile, continuous impedance change is prevented from being as small as possible, the pins of the MSA connecting main body are inserted into corresponding welding holes of the PCB to be welded, the adhesive force and the anti-torque performance of the MSA connector are enhanced, the risk that the PCB of the surface mounting connector is peeled off on the same layer is avoided, and the service life of the surface mounting connector is prolonged. The PCB matching ring 3 and the optimized PCB are provided with the welding holes, and the impedance of the welding point of the center pin is adjusted, so that the purposes of matching the impedance and optimizing the high-frequency index are achieved. Through the method, the SMA vertical welding connector can reach 26.5 GHz.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, and more specifically, to a high-frequency vertical PCB soldering type SMA connector. Background Art

[0002] In 5G and radio frequency instruments and meters, low-cost and high-reliability microwave interconnection becomes very important. Vertical PCB soldering brings about the simplification of the structure and convenience for module connection boxes, and lower costs. However, for traditional vertical soldering SMA connectors, the frequency cannot exceed 10 GHz. This results in limited applications. The present invention aims to design an SMA vertical connector in the microwave frequency band (0 - 26.5 GHz). To expand the application range of SMA coaxial connectors;

[0003] After retrieval, the existing application number: CN201811173063.1, discloses an SMA connector, including a flange, a dielectric material, a center conductor, a connector head, and pins; the dielectric material is fixed on the flange; the center conductor passes through and is fixed to the dielectric material; the inside of the connector head is hollow, and the connector head is fixed on the upper surface of the flange and located outside the dielectric material; the flange is provided with pin fixing grooves on both sides of the connector head; the number of pins is multiple, and they are detachably installed on the lower surface of the flange through the pin fixing grooves. The SMA connector of the present invention can be applied to different working conditions by adding pins and moving the positions of the pins. The inventor found the following problems in the prior art during the implementation of the present utility model:

[0004] When connecting the SMA connection main body, it often suffers from problems of parasitic parameters because its high-frequency signals are very sensitive to the parasitic inductance and capacitance inside the connector. Once the frequency is too high, the parasitic parameters inside the connector will directly affect the signal transmission characteristics, resulting in signal attenuation and phase noise;

[0005] Therefore, a high-frequency vertical PCB soldering type SMA connector is proposed to solve the above problems. Content of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the present utility model provides a high-frequency vertical PCB soldering type SMA connector to solve the problems raised in the above background art.

[0007] To achieve the above object, the present utility model provides the following technical solution: A high-frequency vertical PCB-welded SMA connector, comprising a PCB board and an SMA connection body. The top of the PCB board is fixedly provided with the SMA connection body, and the SMA connection body includes a wire routing relief groove, connection enhancement pins, and a PCB matching ring. The bottom of the wire routing relief groove is provided with connection enhancement pins on all four sides, and a PCB matching ring is fixedly provided at the center of the four groups of connection enhancement pins.

[0008] Preferably, the SMA connection body further includes a brass gold-plated body, a mounting connection shaft, and a center pin welding point. The bottom of the brass gold-plated body is fixedly provided with the mounting connection shaft, and a center pin welding point is fixedly provided on the side of the PCB matching ring away from the mounting connection shaft.

[0009] Preferably, the PCB board further includes welding holes, a wire source docking head, and fixing grooves. Welding holes are provided above the inner wall of the PCB board, a wire source docking head is provided on the side of the SMA connection body, and fixing grooves are longitudinally penetrated through the upper end surface of the PCB board. There are four groups of fixing grooves, and the four groups of fixing grooves are located at the four corners of the PCB board.

[0010] Preferably, the pin structure of the connection enhancement pin is square, and the PCB board and the SMA connection body are fixedly connected through the connection enhancement pin and the welding hole.

[0011] The technical effects and advantages of the present utility model:

[0012] 1. Compared with the prior art, in this high-frequency vertical PCB-welded SMA connector, by welding the connection body on the PCB board, the wire routing relief groove 1 can prevent PCB wire routing short circuits, and at the same time minimize the continuous change of impedance as much as possible. The pins of the MSA connection body are inserted into the corresponding welding holes on the PCB for welding, enhancing the adhesion and anti-torque performance of the MSA connection body, and avoiding the risk of delamination and peeling off between the surface-mounted MSA connection body and the PCB board on the same layer.

[0013] 2. Compared with the prior art, in this high-frequency vertical PCB-welded SMA connector, by the PCB matching ring 3 and the welding holes provided on the optimized PCB and adjusting the impedance of the center pin welding point, the purpose of matching impedance and optimizing high-frequency indicators is achieved. By this method, the SMA vertical welded connector can reach 26.5 GHz. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the SMA connection body of the present utility model.

[0016] Figure 3 This is the front view structural schematic diagram of the connection enhanced pin of the present utility model.

[0017] Figure 4 This is the left view structural schematic diagram of the brass gold-plated body of the present utility model.

[0018] The reference numerals are: 1, routing relief groove; 2, connection enhanced pin; 3, PCB matching ring; 4, brass gold-plated body; 5, mounting connection shaft; 6, center pin welding point; 7, PCB board; 701, welding hole; 8, SMA connection body; 9, wire source docking head; 10, fixing groove. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1

[0021] As shown in the attached Figures 1 to 4 A high-frequency vertical PCB welding type SMA connector, including a PCB board 7 and an SMA connection body 8. The top of the PCB board 7 is fixedly provided with the SMA connection body 8, and the SMA connection body 8 includes a routing relief groove 1, a connection enhanced pin 2 and a PCB matching ring 3. The bottom four sides of the routing relief groove 1 are all provided with connection enhanced pins 2, and a PCB matching ring 3 is fixedly provided at the center of the four groups of connection enhanced pins 2.

[0022] Wherein: when connecting the PCB board 7 and the SMA connection body 8, at this time, the connection enhanced pin 2 provided by the SMA connection body 8 can be connected to the welding hole 701 of the PCB board 7, so as to enhance the adhesion and anti-torque performance of the SMA connection body 8. And the connection enhanced pins 2 are installed along the four corners of the connection end of the SMA connection body 8, so that the distances between the four groups of connection enhanced pins 2 are the same, and the positions between the PCB matching ring 3 provided at the center of the routing relief groove 1 and the connection enhanced pins 2 are equidistant.

[0023] Embodiment 2

[0024] Based on Embodiment 1, the solution in Embodiment 1 will be further refined and introduced in combination with the following specific working modes, as Figures 1 to 4 shown, and the details are described below:

[0025] As a preferred embodiment, the SMA connection body 8 further includes a brass gold-plated body 4, a mounting connection shaft 5, and a center pin welding point 6. The bottom of the brass gold-plated body 4 is fixedly provided with the mounting connection shaft 5, and a center pin welding point 6 is fixedly provided on the side of the PCB matching ring 3 away from the mounting connection shaft 5. The brass gold-plated body 4 in the SMA connection body 8 is at the head position of the SMA connection body 8. The bottom of the brass gold-plated body 4 is connected to the top of the mounting connection shaft 5, thereby connecting the brass gold-plated body 4 and the mounting connection shaft 5. And the connection block provided on the mounting connection shaft 5 is connected to the butt enhancement pin 2, thereby completing the fixation of the butt enhancement pin 2. And the center pin welding point 6 is provided at the center of the connection block, and the PCB matching ring 3 is attached to the center of the center pin welding point 6. At this time, when the centers of the PCB board 7 and the SMA connection body 8 are in contact, when the SMA connection body 8 is connected to the welding hole 701 of the PCB board 7 through the butt enhancement pin 2, when the PCB board 701 and the SMA connection body 8 are in contact, there is a welding space reserved between the center pin welding point 6 in the SMA connection body 8 and the PCB board 7 through the PCB matching ring 3.

[0026] As a preferred embodiment, the PCB board 7 further includes a welding hole 701, a wire source docking head 9, and a fixing groove 10. The welding hole 701 is provided above the inner wall of the PCB board 7, the wire source docking head 9 is provided on the side of the SMA connection body 8, and the fixing groove 10 is longitudinally penetrated through the upper end surface of the PCB board 7. And there are four groups of fixing grooves 10, and the four groups of fixing grooves 10 are located at the four corners of the PCB board 7. The welding hole 701 dedicated to the connection of the SMA connection body 8 on the PCB board is at the side edge position of the PCB board 7, and the position of the wire source docking head 9 is also set at the side of the welding hole 701 connected to the SMA connection body 8, thereby confirming the position of the wire source docking head 9. Then the fixing grooves 10 provided at the four corners of the PCB board 7 are used for installing and connecting the body structure of the PCB board 7 subsequently.

[0027] As a preferred embodiment, the pin structure of the butt enhancement pin 2 is square, and the PCB board 7 and the SMA connection body 8 are fixedly connected through the butt enhancement pin 2 and the welding hole 701. And because the pin structure of the butt enhancement pin 2 is square, because its pin structure itself is a square structure, when the square structure is inserted, when the pin of the butt enhancement pin 2 is inserted into the welding hole 701 of the PCB board 7, due to the pin structure of the butt enhancement pin 2, the SMA connection body 8 restricts the position of the SMA connection body on the PCB board 7 through the butt enhancement pin 2.

[0028] The working process of the present utility model is as follows: When connecting the PCB board 7 and the SMA connection main body 8, the enhanced connection pin 2 provided on the SMA connection main body 8 can be connected to the welding hole 701 of the PCB board 7 at this time, so as to enhance the adhesion and anti-torque performance of the SMA connection main body 8. And the enhanced connection pin 2 is installed at the four corners of the connection end of the SMA connection main body 8, so that the distances between the four groups of enhanced connection pins 2 are the same. And the PCB matching ring 3 provided at the center of the wire routing relief groove 1 is equidistant from the enhanced connection pin 2. Among them, the brass gold-plated main body 4 in the SMA connection main body 8 is at the head position of the SMA connection main body 8. The bottom of the brass gold-plated main body 4 is connected to the top of the mounting connection shaft 5, so as to connect the brass gold-plated main body 4 and the mounting connection shaft 5. And the connection block provided on the mounting connection shaft 5 is connected to the enhanced connection pin 2, so as to complete the fixation of the enhanced connection pin 2. And the center pin welding point 6 is provided at the center of the connection block, and the PCB matching ring 3 fits at the center of the center pin welding point 6. At this time, when the centers of the PCB board 7 and the SMA connection main body 8 are in contact, when the SMA connection main body 8 is connected to the welding hole 701 of the PCB board 7 through the enhanced connection pin 2, when the PCB board 701 and the SMA connection main body 8 are in contact, at this time, there is a welding space reserved between the center pin welding point 6 in the SMA connection main body 8 and the PCB board 7 through the PCB matching ring 3. And the welding hole 701 dedicated to the connection of the SMA connection main body 8 on the PCB board is at the side edge position of the PCB board 7, and the position of the wire source docking head 9 is also set at the side of the welding hole 701 connected by the SMA connection main body 8, so as to confirm the position of the wire source docking head 9. Then the fixing grooves 10 provided at the four corners of the PCB board 7 are used for installing and connecting the main body structure of the PCB board 7 in the follow-up. And because the pin structure of the enhanced connection pin 2 is square, because its pin structure itself is a square structure, when the square structure is inserted, when the pin of the enhanced connection pin 2 is inserted into the welding hole 701 of the PCB board 7, due to the pin structure of the enhanced connection pin 2, the SMA connection main body 8 restricts the position of the SMA connection main body on the PCB board 7 through the enhanced connection pin 2. The above is the working principle of this high-frequency vertical PCB welding type SMA connector.

[0029] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A high-frequency vertical PCB soldering SMA connector, comprising a PCB board (7) and an SMA connecting body (8), characterized in that: An SMA connection body (8) is fixedly arranged on the top of the PCB board (7), and the SMA connection body (8) comprises a wiring clearance groove (1), a connection enhancement pin (2) and a PCB matching ring (3), and connection enhancement pins (2) are arranged on four sides of the bottom of the wiring clearance groove (1), and a PCB matching ring (3) is fixedly arranged at the center of four groups of the connection enhancement pins (2).

2. A high-frequency vertical PCB soldering SMA connector according to claim 1, characterized in that: The SMA connection body (8) further comprises a brass gold-plated body (4), a mounting connection shaft (5) and a center pin welding point (6), and the mounting connection shaft (5) is fixedly arranged at the bottom of the brass gold-plated body (4), and the center pin welding point (6) is fixedly arranged on a side of the PCB matching ring (3) away from the mounting connection shaft (5).

3. A high-frequency vertical PCB soldering SMA connector according to claim 1, characterized in that: The PCB board (7) further comprises a welding hole (701), a line source joint (9) and a fixing groove (10), and the welding hole (701) is arranged above the inner wall of the PCB board (7), and the line source joint (9) is arranged on the side of the SMA connection body (8), and the fixing groove (10) is longitudinally penetrated through the upper end surface of the PCB board (7), and the fixing groove (10) is arranged in four groups, and the four groups of the fixing grooves (10) are located at the four corners of the PCB board (7).

4. A high-frequency vertical PCB soldering SMA connector according to claim 1, characterized in that: The pin structure of the connection enhancement pin (2) is square, and the PCB board (7) and the SMA connection body (8) are fixedly connected via the connection enhancement pin (2) and the welding hole (701).

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