A welding-free high-frequency connector and connector assembly

Abstract

The present invention relates to a solder-free high-frequency connector, comprising: a main body, which comprises: an insulating body, an outer shell covered on the insulating body; a terminal assembly, which is buried in the insulating body along a first direction, and comprises: a plurality of plug-in terminals, fixed terminals and contact terminals connected in sequence along the first direction, the contact terminals are connected to the ends of the fixed terminals along a third direction perpendicular to the first direction, the contact terminals are arranged side by side along a second direction, and the first side of the contact terminals are used for floating crimping and conducting with a circuit board; an elastic assembly, which comprises: a first insulator covered at least part of the second side of the contact terminals, and an elastic shielding shell buried in the insulating body. Through the above arrangement, the present invention reduces the length of the connection between the contact terminal and the insulating body, and cooperates with the first insulator to further improve the impedance performance of the terminal at low and high frequencies.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a welding-free high-frequency connector and a connector assembly. Background Art

[0002] The current industry generally requires connectors to have high-frequency signal transmission capabilities. As the requirements for high-frequency performance of electrical connectors continue to increase, high-frequency problems of electrical connectors are becoming more and more prominent, and the design requirements for various indicators related to the high-frequency performance of electrical connectors are also becoming higher and higher, such as the size of characteristic impedance, impedance consistency, signal transmission delay, interference noise, resonance, signal loss, external interference attacks, and large current transmission.

[0003] The debugging of various indicators is mutually restrained and affected. In order to achieve the required characteristic impedance of the terminal, it is necessary to adjust the cross-sectional size of the terminal, the distance between the terminal and the shielding shell, etc., and the cross-sectional size of the terminal also affects the interference attack emitted by the terminal and the large current transmission performance of the terminal. With the increasingly high requirements for the high-frequency performance of electrical connectors, the range of options for various indicators is getting smaller and smaller, and the manufacturing cost is getting higher and higher, resulting in greater difficulty in obtaining electrical connectors with the required high-frequency performance. When the corresponding connector is applied in the finished product, it needs to be fixedly connected to the PCBA after the SMT welding process. Different finished product height spaces require connectors with specific center heights to match, so there will be a lot of height forms in the same series of connectors on the market to match the different installation height requirements of the finished product, resulting in a variety of connectors in the same series, a large amount of repeated investment in production and manufacturing, a waste of production resources, and is not conducive to standardization; the synchronous connector originally requires a fixed process of the SMT welding process, which brings a lot of process equipment investment and corresponding resource waste in the SMT process (such as solder paste, nitrogen, and high-temperature thermal effects) to the whole machine manufacturing process. Summary of the invention

[0004] To this end, the technical problems to be solved by the present invention are: 1. Overcoming the problem that the high-frequency performance of the connector in the prior art is difficult to balance and it is not easy to meet multiple test standards at low cost, thereby providing a solder-free high-frequency connector. 2. Overcoming the problem that the connector of the same SMT process in the prior art cannot meet the different installation height requirements of the whole machine. 3. Overcoming the problem that the connector of the prior art must go through the SMT welding process to be fixedly connected to the PCBA.

[0005] In order to solve the above technical problems, the present invention provides a welding-free high-frequency connector, comprising:

[0006] The main body mechanism comprises: an insulating body, an outer shell covering the insulating body;

[0007] A terminal assembly, which is buried in the insulating body along a first direction, and comprises: a plurality of groups of plug-in terminals, fixed terminals and contact terminals connected in sequence along the first direction, wherein the contact terminals are connected to the ends of the fixed terminals along a third direction perpendicular to the first direction, and the contact terminals are arranged side by side along a second direction, and the first side of the contact terminals is used for floating crimping and conducting with the circuit board;

[0008] The elastic component comprises: a first insulator covering at least a portion of the second side of the contact end, an elastic shielding shell buried in the insulating body, and a plurality of elastic terminals connected to the elastic shielding shell and having ends capable of elastically abutting against the first insulator.

[0009] In one embodiment of the present invention, the insulating body is provided with a receiving space along the second direction, the first insulator and the contact end are received in the receiving space, the terminal assembly includes an upper row of terminals and a lower row of terminals, the upper row of terminals and the lower row of terminals respectively include a plurality of first terminals and second terminals, the first terminals and the second terminals are arranged opposite to each other up and down on the second side, and are staggered and arranged side by side on the first side, the number of the upper row of terminals and the lower row of terminals are twelve each and the arrangement directions are opposite, the upper row terminals at the twelfth, eleventh and tenth positions are a group with the lower row terminals at the first to fourth positions, the lower row terminals at the first position serve as grounding terminals for the upper row terminals at the twelfth, eleventh and tenth positions, and as grounding terminals for the lower row terminals at the second to fourth positions, the upper row terminal at the ninth position and the lower row terminal at the fourth position are positive terminals and are adjacent.

[0010] In one embodiment of the present invention, the first terminal and the second terminal are arranged opposite to each other at the plug-in end and at least part of the fixed end, and at least part of the fixed ends and the contact ends of the first terminal and the second terminal are arranged side by side along the second direction.

[0011] In one embodiment of the present invention, an intermediate piece is provided in the middle of the upper and lower relatively arranged sections of the first terminal and the second terminal, and the intermediate piece is a conductive shielding piece. The insulating body is provided with plug-in parts on both sides along the second direction, and the plug-in parts and the circuit board to be connected are adapted in shape for horizontal limitation. The outer shell is provided with a limiting seat and abuts against the circuit board to be connected for vertical limitation and locking.

[0012] In one embodiment of the present invention, the first terminal and the second terminal are bent with a first bending portion on the second side of the middle piece, and the first terminal and the second terminal transition from being arranged opposite to each other up and down to being arranged side by side on the second side of the middle piece through the first bending portion.

[0013] In one embodiment of the present invention, the insulating body includes an insulating base and an insulating tongue plate, the plug-in end is embedded in the insulating tongue plate, and the upper and lower sides of the plug-in end are exposed from the insulating tongue plate for connection with the male connector, the fixed end is respectively embedded in the insulating base and the insulating tongue plate, the upper and lower sides of the tongue plate are partially covered with a first shielding shell, and the first shielding shell is connected to the intermediate shielding sheet.

[0014] In one embodiment of the present invention, the intermediate piece has convex bumps extending toward the first terminal and the second terminal respectively, the ground terminal of the first terminal and the second terminal abuts against the convex bumps, the intermediate piece and the first terminal and the second terminal all have gaps, and the insulating body fills the gaps.

[0015] In one embodiment of the present invention, the first bending portion has a transition portion extending along the first direction, the end of the transition portion is connected to the second elastic portion, a second bending portion is connected between the transition portion and the second elastic portion, the contact end is connected to the end of the second elastic portion, the elastic shielding shell is bent to have a third bending portion parallel to the transition portion and the second bending portion, and a Mylar sheet is arranged between the second elastic portion and the outer shell.

[0016] In one embodiment of the present invention, the elastic terminal includes: a fourth bending portion connected to the third bending portion, an extension arm connected to the fourth bending portion, and a fifth bending portion connected to the extension arm, and the fifth bending portion can abut against the first insulator.

[0017] The present invention also provides a connector assembly, which is connected using the above-mentioned welding-free high-frequency connector.

[0018] The above technical solution of the present invention has the following advantages compared with the prior art:

[0019] The soldering-free high-frequency connector described in the present invention is connected to the circuit board by floating crimping at the contact end, without the need for soldering, thus simplifying the assembly process and improving production efficiency. At the same time, in the connector application scenario, different devices with different circuit board heights or different connector interface heights can all be suitable for the connector without changing the interface position of the device or adjusting the height of the circuit board, thereby increasing the applicability of the connector and providing insulation protection. One end of a plurality of elastic terminals is connected to the elastic shielding shell, and the other end can be elastically abutted against the first insulator, thereby providing elastic support and assistance to the suspended first insulator and the contact end. By setting the suspended contact end, the length of the connection between the contact end and the insulating body is reduced, and the impedance performance of the terminal at low and high frequencies is further improved in cooperation with the first insulator, while reducing resource waste and improving the level of production environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

[0021] Figure 1 It is a schematic diagram of the structure of the connector of the present invention and the circuit board to be connected;

[0022] Figure 2 is an exploded view of the connector of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the insulating body of the present invention;

[0024] Figure 4 is a three-dimensional diagram of the elastic shielding shell of the present invention;

[0025] Figure 5 is a three-dimensional diagram of the terminal assembly of the present invention;

[0026] Figure 6 is a cross-sectional view of the terminal assembly and the elastic assembly of the present invention;

[0027] Figure 7 is a top view of the terminal assembly of the present invention;

[0028] Figure 8 is a schematic diagram of the arrangement of the first terminal and the second terminal of the present invention;

[0029] Fig. 9 is a flow chart of the assembly process of the connector of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the circuit board of the present invention.

[0031] Explanation of the reference numerals in the specification: 1. insulating body; 2. circuit board; 3. outer iron shell; 4. limit seat; 5. plug-in portion; 6. terminal assembly; 7. first insulator; 8. Mylar sheet; 9. first shielding shell; 10. pressure plate; 11. intermediate sheet; 12. elastic shielding shell; 13. inner iron shell; 14. tongue plate; 15. elastic terminal; 17. insulating base; 18. chamfer; 19. convex bump; 20. first terminal; 21. second terminal; 22. first bending portion; 23. second elastic portion; 24. contact end; 25. transition portion; 26. third bending portion; 27. fifth bending portion; 28. fourth bending portion; 29. ​​extension arm; 31. copper foil; 32. fillet. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Example

[0033] Reference Figure 1-Figure 10 As shown, a welding-free high-frequency connector of the present invention comprises:

[0034] The main body, comprising: an insulating body 1, an outer shell covering the insulating body 1;

[0035] The terminal assembly 6 is buried in the insulating body 1 along the first direction, and comprises: a plurality of plug-in terminals, fixed terminals and contact terminals connected in sequence along the first direction (connector plug-in direction), the contact terminals are connected to the ends of the fixed terminals along a third direction (connector height direction) perpendicular to the first direction, the contact terminals are arranged side by side along the second direction (connector width direction), and the first side of the contact terminals is used for floating crimping and conducting with the circuit board 2;

[0036] The elastic component includes: a first insulator 7 covering at least a portion of the second side of the contact end, an elastic shielding shell 12 buried in the insulating body 1, and a plurality of elastic terminals 15 connected to the elastic shielding shell 12 and having ends capable of elastically abutting against the first insulator 7.

[0037] The present invention discloses a soldering-free high-frequency connector, wherein the terminal assembly 6 is buried in the insulating body 1 and arranged along a first direction, the plug-in end is used to connect to the male connector corresponding to the Type-C port, the fixed end is fixed in the insulating body 1, the contact end is connected to an end of the fixed end away from the plug-in end, and the contact ends are arranged side by side along a second direction perpendicular to the first direction, and the first side thereof (i.e., the side close to the circuit board 2) is used for floating crimping and conducting with the circuit board 2. Since the contact end is conducted with the circuit board 2 by floating crimping, no soldering is required, which simplifies the assembly process and improves production efficiency. At the same time, in the application scenario of the connector, different devices with different circuit board 2 heights or different connector interface heights can all be applied to the connector without changing The interface position of the device or the height of the circuit board 2 is adjusted, which increases the applicability of the connector. The first insulator 7 covers at least part of the second side of the contact end (i.e., the side facing away from the circuit board 2) to provide insulation protection. In addition, since the contact end is suspended, the length of the connection between the contact end and the insulating body 1 is reduced, and the first insulator 7 cooperates with the terminal to further improve the impedance performance at low and high frequencies. Since the elastic shielding shell 12 is buried in the insulating body 1, it can be made of metal material to further shield electromagnetic interference. One end of a plurality of elastic terminals 15 is connected to the elastic shielding shell 12, and the other end can be elastically abutted against the first insulator 7, thereby providing elastic support and assistance to the suspended first insulator 7 and the contact end.

[0038] See also Figure 3As shown, the insulating body 1 is provided with a receiving space along the second direction, the first insulator 7 and the contact end 24 are received in the receiving space, the terminal assembly 6 includes an upper row of terminals and a lower row of terminals, the upper row of terminals and the lower row of terminals respectively include a plurality of first terminals 20 and second terminals 21, the first terminals 20 and the second terminals 21 are arranged opposite to each other up and down on the second side, and are arranged staggered and side by side on the first side, further, the insulating body 1 is provided with a receiving space along the second direction (i.e., perpendicular to the arrangement direction of the terminal assembly 6), the first insulator 7 and the contact end are received in the receiving space. Such an arrangement enables the first insulator 7 and the contact end to be more compactly integrated in the insulating body 1, the first insulator 7 is limited by the insulating body 1, and the volume of the connector is also reduced, and on the first side of the terminal assembly 6 (i.e., the side close to the circuit board 2), the first terminal 20 and the second terminal 21 are arranged staggered and side by side. Specifically, viewed along the second direction, the contact ends of adjacent first terminals 20 and second terminals 21 are arranged alternately, that is, the contact end of a first terminal 20 is located between the contact ends of two adjacent second terminals 21, the number of the upper row terminals and the lower row terminals are twelve and the arrangement directions are opposite, the upper row terminals at the twelfth, eleventh and tenth positions are a group with the lower row terminals at the first to fourth positions, the lower row terminal at the first position serves as the grounding terminal of the upper row terminals at the twelfth, eleventh and tenth positions, and as the grounding terminal of the lower row terminals at the second to fourth positions, the upper row terminal at the ninth position and the lower row terminal at the fourth position are positive terminals and are adjacent.

[0039] Specifically, the plurality of first terminals 20 and second terminals 21 are arranged and combined as shown in Table 1 below:

[0040] Table 1:

[0041] See also Figure 8 As shown, A represents multiple first terminals 20 of the upper row of terminals, B represents multiple second terminals 21 of the lower row of terminals, the upper row of terminals and the lower row of terminals are symmetrically arranged as a whole, and the multiple first terminals 20 in the upper row of terminals and the multiple second terminals 21 in the lower row of terminals are in reverse order, so that the Type-C connector can be plugged in both directions. The upper row of terminals and the lower row of terminals are arranged in the manner shown in the above table. The specific arrangement is shown in Figure 8, can reduce the crosstalk between terminals, improve the stability of signal transmission, meet the test standards, in order to comply with the industry association specifications, A9, A10, A11, A12 (B1, B2, B3, B4) four terminals as a group to form a differential pair, where A1, A12, B1, B12 are four grounding PINs, A4, A9, B4, B9 are four power PINs, and at the back end A9, A10, A11, A12, B1, B2, B3, B4 are usually arranged adjacent to each other in sequence. In this embodiment, A12, A11, A10, B1, B2, B3, B4 seven PINs are made into a group, where B1 can be used as A12 , A11, A10 can also be used as the grounding PIN of B2, B3, B4. B1 replaces the grounding function of A9 in A9, A10, A11, A12, so that the positive PINs of the two power supplies A9 and B4 (A4 and B9) are adjacent, which is convenient for overlapping on the circuit board. At the same time, it can be used as a ground PIN in high-speed signal transmission, and the short circuit risk of A9 (positive pole) and B1 (negative pole) in the narrow space of the connector is avoided, meeting the large current transmission requirements of the connector 5A, 7A, 10A.

[0042] Specifically, the high frequency analysis test results of the terminals are shown in Table 2 below:

[0043] Table 2:

[0044] It can be seen from Table 2 that the transmission performance of the upper row of terminals and the lower row of terminals in the terminal assembly 6 can pass various standard tests and can pass the test standards well under both low frequency and high frequency conditions.

[0045] The first terminal 20 and the second terminal 21 are arranged opposite to each other at the plug-in end and at least part of the fixed end. At least part of the fixed end and the contact end of the first terminal 20 and the second terminal 21 are arranged side by side along the second direction. In one embodiment, the fixed ends of the first terminal 20 and the second terminal 21 are arranged side by side along the second direction as a whole, and the lengths of the two are equal. In some other embodiments, the fixed ends can also be arranged side by side in part along the second direction. When the circuit board 2 needs to be connected through the connector, the plug-in ends of the first terminal 20 and the second terminal 21 are inserted into the corresponding male end to electrically connect the plug-in end to the male end. At the same time, the contact ends of the first terminal 20 and the second terminal 21 are respectively in contact with the corresponding contact points on the circuit board 2 to establish an electrical connection, thereby realizing the electrical connection between the connector and the circuit board 2.

[0046] See also Figure 2 , Figure 6As shown, an intermediate piece 11 is provided in the middle of the upper and lower relatively arranged sections of the first terminal 20 and the second terminal 21, and the intermediate piece 11 is a conductive shielding piece. By providing a conductive shielding piece between the first terminal 20 and the second terminal 21 which are relatively arranged in the upper and lower directions, the crosstalk between the terminals can be effectively suppressed and the signal transmission quality can be improved. The insulating body 1 is provided with plug-in parts 5 on both sides along the second direction. The plug-in parts 5 and the circuit board 2 to be connected are adapted in shape for horizontal limitation. The outer shell is provided with a limiting seat 4 and abuts against the circuit board 2 to be connected for vertical limitation and locking. The conductive shielding piece can be made of conductive materials such as metal sheets or conductive plastic sheets. When the connector is connected to the circuit board 2, the plug-in part 5 is adapted in shape to the circuit board 2, and the connector can be limited in the horizontal direction to prevent the connector from being offset or rotated in the horizontal direction, thereby improving the reliability of the connection. In addition, the connector also includes an outer shell, and the outer shell is provided with a limiting seat 4, and the limiting seat 4 abuts against the circuit board 2 to be connected for vertical limitation and locking. When the connector is connected to the circuit board 2, the limit seat 4 on the outer shell abuts against the circuit board 2, which can limit and lock the connector in the up and down directions, thereby preventing the connector from shaking or falling off in the up and down directions, and further improving the reliability of the connection.

[0047] When the circuit board 2 needs to be connected through the connector, the plug-in ends of the first terminal 20 and the second terminal 21 are first inserted into the corresponding female terminal to electrically connect the plug-in ends to the female terminal. At the same time, the contact ends of the first terminal 20 and the second terminal 21 are respectively in contact with the corresponding contact points on the circuit board 2 to establish an electrical connection. Then, the plug-in portion 5 on the insulating body 1 is adapted to the shape of the circuit board 2 to achieve horizontal positioning. Finally, the outer shell is pressed down to make the positioning seat 4 abut against the circuit board 2 to achieve positioning and locking in the up and down directions, thereby completing a reliable connection between the connector and the circuit board 2.

[0048] Continue to see Figure 6 As shown, the first terminal 20 and the second terminal 21 are bent with a first bending portion 22 on the second side of the middle piece 11. The first terminal 20 and the second terminal 21 transition from being arranged opposite to each other to being arranged side by side on the second side of the middle piece 11 through the first bending portion 22. The first bending portion 22 can be a bending section of the first terminal 20 and the second terminal 21. The bending direction and the bending angle change the extension direction of the first terminal 20 and the second terminal 21 on the second side of the middle piece 11, thereby realizing the transition from being arranged opposite to each other on one side of the middle piece 11, and the size of the connector can be reduced by using the opposite arrangement on one side of the middle piece 11, and the terminal spacing can be increased by using the side by side arrangement on the other side of the middle piece 11 to avoid signal interference. This structure makes full use of the internal space of the connector and takes into account the requirements of miniaturization and high signal quality.

[0049] The insulating body 1 includes an insulating base 17 and an insulating tongue plate 14, the plug-in end is embedded in the insulating tongue plate 14, and the upper and lower sides of the plug-in end are exposed on the insulating tongue plate 14 for connecting with the male connector, the fixed end is respectively embedded in the insulating base 17 and the insulating tongue plate 14, the upper and lower sides of the tongue plate 14 are partially covered with a first shielding shell 9, and the first shielding shell 9 is connected to the middle shielding sheet, specifically, the insulating tongue plate 14 is a tongue-shaped structure extending from the insulating base 17, and is used to accommodate and fix the plug-in ends of the first terminal 20 and the second terminal 21. The plug-in end is embedded in the insulating tongue plate 14, so that the upper and lower sides of the plug-in end are exposed on the surface of the insulating tongue plate 14, which can facilitate the electrical connection between the plug-in end and the male connector. At the same time, the insulating tongue plate 14 plays a certain supporting, protective and insulating role for the plug-in terminal, preventing short circuit or interference between the plug-in terminals, wherein the fixed end section located in the insulating base 17 mainly plays a role of fixing and supporting, while the fixed end section located in the insulating tongue plate 14 mainly plays a role of transition and lead-out, so that the terminal can transition from the insulating base 17 to the insulating tongue plate 14, and finally lead out and connect to the male connector. In addition, the upper and lower sides of the insulating tongue plate 14 are partially covered with a first shielding shell 9, and the first shielding shell 9 is connected to the middle shielding sheet. The first shielding shell 9 can be a metal shell or a conductive plastic shell, and is preferably stainless steel in this embodiment, which is used to shield the terminals on the insulating tongue plate 14 and reduce the influence of external interference on the signal. The first shielding shell 9 is connected to the middle shielding sheet to form a complete shielding system, which plays an all-round shielding protection role for the terminals. The tongue plate 14 limits and locks the upper and lower rows of terminals respectively through two sets of pressing plates 10.

[0050] See also Figure 5 As shown, the intermediate piece 11 has convex bumps 19 extending toward the first terminal 20 and the second terminal 21 respectively, and the grounding terminal in the first terminal 20 and the second terminal 21 abuts against the convex bumps 19. The intermediate piece 11 and the first terminal 20 and the second terminal 21 all have gaps, and the insulating body 1 fills the gaps. The intermediate piece 11, as a conductive shielding piece, not only plays the role of isolating the first terminal 20 and the second terminal 21, but also can achieve shielding and grounding by abutting against the grounding terminal through the extended convex bumps 19. The convex bumps 19 can be the raised part on the intermediate piece 11, and its shape and size are adapted to the grounding terminal to achieve good contact and grounding effects. There are gaps between the intermediate piece 11, the first terminal 20 and the second terminal 21. These gaps can be specially set to avoid short circuits or interference between the intermediate piece 11 and the terminals, or can be generated for manufacturing processes or assembly needs. The insulating body 1 fills in the gaps to play the role of insulation and fixing. The insulating body 1 can be an insulating material such as plastic, plastic, ceramic, etc. By filling the gaps, the structural stability and insulation reliability of the connector can be improved.

[0051] The first bending portion 22 extends a transition portion 25 along the first direction, the end of the transition portion 25 is connected to the second elastic portion 23, the second bending portion is connected between the transition portion 25 and the second elastic portion 23, the contact end is connected to the end of the second elastic portion 23, the elastic shielding shell 12 is bent to form a third bending portion 26 parallel to the transition portion 25 and the second bending portion, and a Mylar sheet 8 is arranged between the second elastic portion 23 and the outer shell. After the first bending portion 22 realizes the transition from the first terminal 20 and the second terminal 21 being arranged oppositely to being arranged side by side, the transition portion 25 is extended along the first direction. The transition portion 25 serves to extend the length of the terminal and increase the elasticity of the terminal. The end of the transition portion 25 is connected to the second elastic portion 23, which can be an elastic arm or a spring sheet of the terminal, and is used to provide an elastic contact force between the terminal and the circuit board 2 to ensure the reliability of the contact. The second bending portion is another curved part of the terminal, and its function is to adjust the height and position of the terminal so that the second elastic portion 23 can accurately contact the circuit board 2.

[0052] See also Figure 4-Figure 7 As shown, the elastic terminal 15 includes: a fourth bending portion 28 connected to the third bending portion 26, an extension arm 29 connected to the fourth bending portion 28, and a fifth bending portion 27 connected to the extension arm 29, the fifth bending portion 27 can abut against the first insulator 7, the extension arm 29 is connected to the fourth bending portion 28, for the extension portion of the elastic terminal 15, the extension arm 29 extends the length of the elastic terminal 15 and provides an elastic deformation space, the extension arm 29 can be linear or curved, depending on the internal space and elasticity requirements of the connector, the fifth bending portion 27 is connected to the end of the extension arm 29, is the terminal bending portion of the elastic terminal 15, the role of the fifth bending portion 27 is The end of the elastic terminal 15 can abut against the first insulator 7 to provide stable support and positioning. The fifth bend 27 abuts against the first insulator 7 to prevent the elastic terminal 15 from being offset or falling off during use, ensuring the reliability of the elastic contact. The end of the fifth bend 27 is implanted in the first insulator 7. The first insulator 7 and the fifth bend 27 are both provided with chamfers 18 for easy insertion. In order to meet the requirements of crimping stability, an interference space of 0.3-0.5mm is usually reserved between the circuit board and the first insulator. During crimping, the connector is matched with the connector from bottom to top. Therefore, a chamfer is provided on the first insulator so that the electrical first insulator can transition the interference space through the chamfer, so that the first insulator elastically abuts against the circuit board.

[0053] See also Fig.10As shown, the PIN width on the circuit board 2 is 0.75mm, and the PIN spacing is 0.6mm, which is compatible with the number and spacing of the PINs of the connector. The side of the circuit board 2 is covered with copper foil 31 adapted to each terminal of the connector, and the copper foil 31 has rounded corners 32 at both ends of the side of the circuit board for easy plugging of the circuit board. The copper foil 31 extends to the rear of the circuit board 2 at both ends of the side of the circuit board 2 so that it is covered on the side of the circuit board 2, so that the connector and the circuit board 2 can achieve stable floating crimping conduction.

[0054] See also Figure 1 , Figure 2 As shown, the middle piece 11, the elastic shielding shell 12, the first shielding shell 9, the inner iron shell 13 and the outer iron shell 3 are conductive and grounded through the pins and the circuit board 2.

[0055] See also Fig. 9 As shown, this embodiment also provides an assembly method of a welding-free high-frequency connector, comprising the following steps:

[0056] Step S1: Assembling the terminal assembly 6 and the shielding assembly within the outer shell;

[0057] Step S2: assembling the elastic component and the shielding terminal component 6 by embedded injection molding, so that the elastic component can support the terminal component 6, and obtaining the S2 component;

[0058] Step S3: assemble the inner iron shell 13 and the S2 component by secondary injection molding, and assemble the outer iron shell 3 and the inner iron shell 13.

[0059] The connector assembly method also includes that the shielding assembly in step S1 includes an intermediate piece 11 and a first shielding shell 9 .

[0060] The connector assembly method also includes, in step S3, attaching the outer iron shell 3 to the S2 component. For specific assembly steps, please refer to the assembly process flow. Fig. 9 .

[0061] Among them, the terminal assembly 6, the intermediate piece 11, the elastic shielding shell 12, the first shielding shell 9, the inner iron shell 13 and the outer iron shell 3 are all made by stamping, and the assembly process does not include welding. The above-mentioned components are assembled by crimping, and SMT welding is eliminated, which further improves the environmental protection effect and prevents cold soldering and high-temperature desoldering in the equipment.

[0062] This embodiment also provides a connector assembly, including a soldering-free high-frequency connector according to any one of claims 1-9.

[0063] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A welding-free high-frequency connector, characterized in that: include: The main body mechanism comprises: an insulating body, an outer shell covering the insulating body; A terminal assembly, which is buried in the insulating body along a first direction, and comprises: a plurality of groups of plug-in terminals, fixed terminals and contact terminals connected in sequence along the first direction, wherein the contact terminals are connected to the ends of the fixed terminals along a third direction perpendicular to the first direction, and the contact terminals are arranged side by side along a second direction, and the first side of the contact terminals is used for floating crimping and conducting with the circuit board; The elastic component comprises: a first insulator covering at least a portion of the second side of the contact end, an elastic shielding shell buried in the insulating body, and a plurality of elastic terminals connected to the elastic shielding shell and having ends capable of elastically abutting against the first insulator.

2. The solder-free high-frequency connector according to claim 1, characterized in that: The insulating body is provided with a receiving space along the second direction, the first insulator and the contact end are received in the receiving space, the terminal assembly comprises an upper row of terminals and a lower row of terminals, the upper row of terminals and the lower row of terminals respectively comprise a plurality of first terminals and second terminals, the first terminals and the second terminals are arranged opposite to each other up and down on the second side, and are staggered and arranged side by side on the first side, the number of the upper row of terminals and the number of the lower row of terminals are both twelve and the arrangement directions are opposite.

3. The solder-free high-frequency connector according to claim 2, characterized in that: The first terminal and the second terminal are arranged opposite to each other at the plug-in end and at least part of the fixed end, and at least part of the fixed end and the contact end of the first terminal and the second terminal are arranged side by side along the second direction.

4. The solder-free high-frequency connector according to claim 2, characterized in that: The first terminal and the second terminal are provided with an intermediate piece in the middle of the upper and lower relatively arranged sections, and the intermediate piece is a conductive shielding piece. The insulating body is provided with plug-in parts on both sides along the second direction, and the plug-in parts and the circuit board to be connected are adapted in shape for horizontal limitation. The outer shell is provided with a limiting seat and abuts against the circuit board to be connected for vertical limitation and locking.

5. The solder-free high-frequency connector according to claim 3, characterized in that: The first terminal and the second terminal are bent to form a first bending portion on the second side of the middle piece, and the first terminal and the second terminal transition from being arranged opposite to each other up and down to being arranged side by side on the second side of the middle piece through the first bending portion.

6. The solder-free high-frequency connector according to claim 3, characterized in that: The insulating body includes an insulating base and an insulating tongue plate, the plug-in end is embedded in the insulating tongue plate, and the upper and lower sides of the plug-in end are exposed from the insulating tongue plate for connection with the male connector, the fixed end is respectively embedded in the insulating base and the insulating tongue plate, the upper and lower sides of the tongue plate are partially covered with a first shielding shell, and the first shielding shell is connected to the middle shielding sheet.

7. The solder-free high-frequency connector according to claim 4, characterized in that: The intermediate piece has convex bumps extending toward the first terminal and the second terminal respectively, and the ground terminal of the first terminal and the second terminal abuts against the convex bumps. The intermediate piece and the first terminal and the second terminal all have gaps, and the insulating body fills the gaps.

8. The solder-free high-frequency connector according to claim 5, characterized in that: The first bending portion has a transition portion extending along the first direction, the end of the transition portion is connected to the second elastic portion, a second bending portion is connected between the transition portion and the second elastic portion, the contact end is connected to the end of the second elastic portion, the elastic shielding shell is bent to have a third bending portion parallel to the transition portion and the second bending portion, and a Mylar sheet is arranged between the second elastic portion and the outer shell.

9. The solder-free high-frequency connector according to claim 8, characterized in that: The elastic terminal includes: a fourth bent portion connected to the third bent portion, an extension arm connected to the fourth bent portion, and a fifth bent portion connected to the extension arm, and the fifth bent portion can abut against the first insulator.

10. A connector assembly, characterized in that: It comprises a solder-free high-frequency connector as described in any one of claims 1 to 9.

Images