High speed connector

Abstract

The utility model relates to the field of electric connector discloses a high speed connector, including plastic shell and terminal assembly, the plastic shell is corresponded to terminal assembly in and is set up the insertion cavity that terminal assembly is inserted along one insertion direction in it, and the insertion cavity has the counter insertion cavity that the complementary connector is inserted in it, and terminal assembly has the fastening part for inserting in the insertion cavity and the elastic resistance part that connects fastening part and stretches into the counter insertion cavity, and the fastening part has a plurality of interval distribution's resistance structure along the insertion direction, and the insertion cavity has the fastening cavity for surrounding on the abutment structure and makes the abutting structure abuts in it. The utility model makes terminal assembly through the fastening cooperation between a plurality of resistance structure and fastening cavity, increases the limiting point between terminal assembly and plastic shell, thereby disperses the load, increases the contact area and effectively resists the external force effect, reduces the possibility that terminal assembly loosens or displaces, improves the terminal performance and stability.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to a high-speed connector. Background Technology

[0002] High-speed connectors, as core components of servers and storage devices, achieve high-speed data transmission through precise design. These connectors employ multiple terminal designs, primarily based on signal isolation and interference immunity requirements. For example, PCIe's TX+ / TX- differential pairs need independent isolation to avoid crosstalk, while additional terminals are required to support dual-port redundancy when the SAS protocol is compatible with SATA. Staggered terminal layouts further optimize performance: physical isolation reduces electromagnetic coupling and ensures PCIe signal integrity. Application scenarios cover server storage and full-combo backplanes, despite the higher cost. Industry trends show that PCIe, with its higher bandwidth, is becoming the preferred choice for high-speed storage, but SAS still maintains its advantage in high-capacity storage.

[0003] As crucial components of high-speed connectors, the plastic housing and terminals typically consist of cavities within the housing. Terminals are inserted into these cavities, allowing for data transmission through the interlocking and elastic engagement of the terminal's retaining end with the complementary connector. While the terminals are ultimately fixed to the circuit board via soldering, ensuring proper interlocking of the retaining end with the complementary connector is challenging. Simply inserting the terminal into the cavity can easily lead to it being pulled out a certain distance when the complementary connector is removed. Prolonged pulling on the terminal can cause deformation due to tension, resulting in displacement of the retaining end and affecting subsequent use with the complementary connector. Therefore, the terminal insertion is unstable. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a high-speed connector to solve the problem of terminal instability.

[0005] To solve the above-mentioned technical problems, the present invention provides a high-speed connector comprising a plastic housing and a terminal assembly. The plastic housing has a cavity corresponding to the terminal assembly for insertion along an insertion direction. The cavity has a mating cavity for a complementary connector to be inserted into it. The terminal assembly has a fastening portion for insertion into the cavity and an elastic abutting portion connecting the fastening portion and extending into the mating cavity. The fastening portion has multiple spaced abutting structures along the insertion direction. The cavity has a fastening cavity surrounding the abutting structures and for pressing the abutting structures against it.

[0006] Furthermore, at least two of the aforementioned abutment structures are distributed at positions away from each other along the insertion direction of the fastening cavity.

[0007] Furthermore, at least one of the abutment structures includes a first widened portion that protrudes backward from both sides of the terminal assembly; the first widened portion has a long contact edge for abutting against the fastening cavity.

[0008] Furthermore, at least one of the abutment structures includes barbs that protrude backward from both sides of the terminal assembly and are inclined toward the side away from the resilient abutment portion; the barbs have two contact points for abutting the fastening cavity.

[0009] Furthermore, at least one of the abutment structures includes a second widened portion that protrudes backward from both sides of the terminal assembly; the second widened portion has a short contact edge that is shorter than the long contact edge for abutting the fastening cavity.

[0010] Furthermore, the second widened portion is located between the first widened portion and the barb portion.

[0011] Furthermore, the plastic shell has a mating surface on one side along the insertion direction, and a mating cavity is formed inside the plastic shell that extends through the mating surface along the insertion direction. The mating cavity has a first cavity surface and a second cavity surface distributed opposite to each other on both sides along its width. A third cavity surface is recessed on the second cavity surface to form a third cavity surface distributed opposite to the first cavity surface. The mating cavity includes a first insertion cavity formed on the plastic shell and extending through the first cavity surface, a second insertion cavity formed on the plastic shell and extending through the second cavity surface, a third insertion cavity formed on the plastic shell and extending through the third cavity surface, and a third insertion cavity formed on the plastic shell. The terminal assembly includes a first terminal inserted into the first socket, a second terminal inserted into the second socket, a third terminal inserted into the third socket, and a fourth terminal inserted into the fourth socket. The first terminal, the second terminal, the third terminal, and the fourth terminal each have an elastic abutment end extending into the socket to form the elastic abutment portion. The elastic abutment ends of the first terminal and the second, third, and fourth terminals are spaced apart.

[0012] Furthermore, both the first terminal and the third terminal include a first fastening section distributed along the insertion direction and a first welding end bent from the end of the first fastening section. The corresponding elastic abutment end is connected to the first fastening section, and at least two abutment structures are formed on the first fastening section. The plastic housing has welding surfaces distributed along the insertion direction away from the mating surface. Both the first insertion cavity and the third insertion cavity include a first cavity segment penetrating the welding surface along the insertion direction and a second cavity segment penetrating the mating surface along the insertion direction from the first cavity segment and communicating with the mating cavity inward along the width direction so that the elastic abutment end can pass through. The fastening cavity includes a first fastening cavity segment that is widened from the cavity wall of the first cavity segment so that the first fastening section can be tightly fitted therein.

[0013] Furthermore, both the second and fourth terminals include a second fastening section distributed along the insertion direction, a bent section bent from the second fastening section, a third fastening section continuing to be distributed along the insertion direction after bending from the bent section, and a second welding end bent from the second fastening section. The corresponding elastic abutment end is connected to the third fastening section. The first, second, and third fastening sections are collectively configured as the fastening portion, and at least one abutment structure is formed on the second and third fastening sections. Both the second and fourth insertion cavities include a third cavity section penetrating the welding surface along the insertion direction and a fourth cavity section penetrating the mating surface along the insertion direction from the third cavity section and communicating inwardly with the mating cavity in the width direction for the elastic abutment end to pass through. The fastening cavity includes a second fastening cavity section opened by widening the cavity wall of the third cavity section for the second fastening section to be tightly fitted therein, and a third fastening cavity section opened by widening the cavity wall of the fourth cavity section for the third fastening section to be tightly fitted therein.

[0014] Furthermore, the first fastening section is provided with a first widening portion, a second widening portion and a barb portion in sequence, the second fastening section is provided with a barb portion and a second widening portion in sequence, and the third fastening section is provided with a first widening portion.

[0015] The high-speed connector of this utility model has at least the following beneficial effects: by setting a retaining structure on the fastening part of the terminal assembly and setting a matching fastening cavity in the insertion cavity, the terminal assembly is inserted into the insertion cavity in the fastening part to realize the insertion between the terminal assembly and the plastic shell. At the same time, through the fastening cooperation between multiple retaining structures and fastening cavities, the limiting points between the terminal assembly and the plastic shell are increased, thereby dispersing the load, increasing the contact area and effectively resisting the action of external forces, reducing the possibility of loosening or displacement of the terminal assembly, and improving the performance and stability of the terminal. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the high-speed connector of this utility model; Figure 2 This is a structural schematic diagram of the high-speed connector of this utility model (from another angle); Figure 3 This is a side sectional view of the high-speed connector of this utility model with the first terminal as the cutting line; Figure 4 This is a side sectional view of the high-speed connector of this utility model with the second terminal as the cutting line; Figure 5 This is a side sectional view of the high-speed connector of this utility model with the third terminal as the cutting line; Figure 6 This is a side sectional view of the high-speed connector of this utility model with the fourth terminal as the cutting line; Figure 7 This is a partial front sectional view of the high-speed connector of this utility model, with the first terminal as the cutting line; Figure 8 This is a partial front sectional view of the high-speed connector of this utility model, with the second terminal (second fastening section) as the cutting line; Figure 9 This is a partial front sectional view of the high-speed connector of this utility model, with the second terminal (third fastening section) as the cutting line; Figure 10 This is a partial front sectional view of the high-speed connector of this utility model, with the third terminal as the cutting line; Figure 11 This is an exploded view of the high-speed connector of this utility model; Figure 12 This is a schematic diagram of the structure of the first terminal of this utility model; Figure 13 This is a schematic diagram of the structure of the second terminal of this utility model; Figure 14 This is a schematic diagram of the structure of the third terminal of this utility model; Figure 15 This is a schematic diagram of the structure of the fourth terminal of this utility model. Figure 16 This is a schematic diagram of the structure of the plastic shell of this utility model; Figure 17 This is a structural schematic diagram of the plastic shell of this utility model (from another angle); Figure 18 This is a partial half-sectional view of the plastic shell of this utility model; Figure 19 This is a partial schematic diagram of the plastic shell and fixing piece of this utility model after they are separated. The meanings of the labels in the attached diagram are as follows: Terminal assembly 1, first terminal 1a, second terminal 1b, third terminal 1c, fourth terminal 1d, first fastening section 11, elastic support end 12, arched section 121, first welding end 13, second fastening section 14, bending section 15, third fastening section 16, second welding end 17, first widening section 181, long contact edge 182, barb portion 183, contact point 184, second widening section 185, short contact edge 186, plastic housing 2, mating surface 211, welding Surface 212, cavity 22, cavity 22a, first cavity 22b, second cavity 22c, third cavity 22d, fourth cavity 22e, first cavity surface 221, second cavity surface 222, third cavity surface 223, first cavity segment 224, second cavity segment 225, third cavity segment 226, fourth cavity segment 227, first fastening cavity segment 231, second fastening cavity segment 232, third fastening cavity segment 233, recessed cavity 24, positioning post 25, welding pull tab 26. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Please see Figures 1 to 11 The high-speed connector of this utility model includes a terminal assembly 1 and a plastic housing 2.

[0019] Please see Figures 1 to 15 Terminal assembly 1 includes a first terminal 1a, a second terminal 1b, a third terminal 1c, and a fourth terminal 1d. The first terminal 1a can be a SAS 40-pin signal ground terminal for high-speed data transmission. The second terminal 1b can be a SATA 15-pin power terminal for voltage output. The third terminal 1c can be a SAS 6-pin signal terminal for high-speed data communication and protocol interaction. The fourth terminal 1d can be a SATA 7-pin ground and signal terminal for grounding and data transmission / reception. Multiple terminals can be configured, such as forty terminals for the first terminal 1a, fifteen for the second terminal 1b, six for the third terminal 1c, and seven for the fourth terminal 1d.

[0020] The first terminal 1a, the second terminal 1b, the third terminal 1c, and the fourth terminal 1d each have an elastic abutment end 12 for elastically abutting against the complementary connector after being inserted into the plastic housing 2. In this embodiment, the first terminal 1a and the third terminal 1c have the same structure and each includes a first fastening section 11 distributed along the insertion direction, an elastic abutment end 12 extending from one end of the first fastening section 11, and a first welding end 13 bent from the other end of the first fastening section 11. The first fastening section 11 is straight, and the elastic abutment end 12 is integrally connected to the end of the first fastening section 11 and then arches out to one side along the thickness direction from near the midpoint of the elastic abutment end 12 to form an arched section 121. The arched section 121 is used to abut against the complementary connector, so that the elastic abutment ends 12 on both sides of the arched section 121 are inclined to provide elastic support for the arched section 121. The first welding end 13 extends along the thickness direction of the first fastening section 11 after being bent from the terminal of the first fastening section 11. After the first terminal 1a and the third terminal 1c are installed on the plastic housing 2, the first welding ends 13 are distributed along the width direction. Among them, the first terminal 1a is the most numerous, so the width of the elastic abutment end 12 of the first terminal 1a is smaller than the elastic abutment end 12 of the third terminal 1c, thus better avoiding other terminals.

[0021] The second terminal 1b and the fourth terminal 1d have the same structure, each including a second fastening section 14 distributed along the insertion direction, a bent section 15 bent from one end of the second fastening section 14, a third fastening section 16 continuing along the insertion direction after the bent section 15, an elastic support end 12 extending from the end of the third fastening section 16 away from the bent section 15, and a second welding end 17 bent from the end of the second fastening section 14 away from the bent section 15. The lengths of the second fastening section 14 and the third fastening section 16 are both distributed along the insertion direction and are staggered relative to each other in the thickness direction of the terminal. The second fastening section 14 and the third fastening section 16 can increase the contact area with the plastic housing 2 in the insertion direction, improving stability. At the same time, the bent section 15 can further enhance the elastic support for the elastic support end 12. The elastic abutment ends 12 of the second terminal 1b and the fourth terminal 1d are provided in the same manner as the elastic abutment ends 12 of the first terminal 1a and the third terminal 1c. Therefore, the elastic abutment ends 12 of the second terminal 1b and the fourth terminal 1d also arch out along the thickness direction near the middle position to form an arched section 121. The arching direction of the arched section 121 of the second terminal 1b and the fourth terminal 1d is on the same side as the distribution direction of the second fastening section 14 along the thickness direction relative to the third fastening section 16. The second welding end 17 extends along the thickness direction of the second fastening section 14 after being bent from the end of the second fastening section 14. In this embodiment, the first fastening section 11, the second fastening section 14, and the third fastening section 16 are collectively defined as fastening portions of the terminal assembly 1 to increase the insertion stability and firmness between the terminal assembly 1 and the plastic housing 2. The elastic abutment ends 12 of the first terminal 1a, the second terminal 1b, the third terminal 1c, and the fourth terminal 1d are collectively defined as elastic abutment portions of the terminal assembly 1 to enable mating between the terminal assembly 1 and the complementary connector. When each elastic abutment end 12 is inserted into the plastic housing 2, in order to avoid mutual interference between the terminals, the elastic abutment ends 12 of the first terminal 1a and the second, third, and fourth terminals 1b and 1d are spaced apart.

[0022] To enhance the insertion stability between the fastening part and the plastic housing 2 and prevent the terminal assembly 1 from easily loosening, multiple spaced-apart abutment structures are provided on the fastening part along the insertion direction. By setting abutment structures at different positions to increase the abutment with the plastic housing 2, forces are applied from multiple positions to effectively prevent the terminal assembly 1 from shifting or shaking, achieving multi-point support. At least two abutment structures are provided on the first terminal 1a, the second terminal 1b, the third terminal 1c, and the fourth terminal 1d, and at least two abutment structures are distributed at both ends of the fastening part, thereby providing positioning and limiting at the far ends of the fastening part.

[0023] In one embodiment, at least one abutment structure on each terminal (i.e., the first terminal 1a, the second terminal 1b, the third terminal 1c, and the fourth terminal 1d) includes a first widened portion 181 that protrudes and widens from both sides of the width of the respective terminal. The first widened portion 181 widens the abutment structure position of the respective terminal and adapts to the inner wall of the plastic housing 2. A long contact edge 182 for abutting or contacting the plastic housing 2 is formed on the side of the first widened portion 181 facing outward along the width of the terminal. The long contact edge 182 can contact the plastic housing 2, increasing the connection stability between each terminal and the plastic housing 2.

[0024] In another embodiment, at least one abutment structure on each terminal includes a barb portion 183 that protrudes backward from the two sides of the width of the respective terminal and is inclined toward the side away from the elastic abutment portion. The first barb portion 183 widens the abutment structure position of each terminal and adapts to the inner wall of the plastic housing 2. Each abutment structure has two barb portions 183 protruding on each side of the corresponding terminal. The two barb portions 183 are recessed so that each barb portion 183 has two contact points 184 for pressing against the plastic housing 2, and one of the contact points 184 is inclined toward the first welding end 13 or the second welding end 17.

[0025] In another embodiment, at least one abutment structure on each terminal includes a second widened portion 185 that protrudes and widens from both sides of the width of each terminal, consistent with the arrangement of the first widened portion 181. The second widened portion 185 also widens the corresponding terminal, except that, relative to the first widened portion 181, the second widened portion 185 has a short contact edge 186 formed along the outward side of the width of the terminal for abutting or contacting the plastic housing 2. The short contact edge 186 is shorter than the long contact edge 182. In one embodiment, the second widened portion 185 is located between the first widened portion 181 and the barb portion 183.

[0026] In one embodiment, at least two abutment structures are provided on the first fastening section 11. Specifically, the first fastening section 11 is provided with a first widening portion 181, a second widening portion 185, and a barb portion 183 in sequence, with the first widening portion 181 and the barb portion 183 located at both ends of the first fastening section 11, respectively. At least one abutment structure is formed on the second fastening section 14 and the third fastening section 16. The second fastening section 14 is provided with a barb portion 183 and a second widening portion 185 in sequence, and the third fastening section 16 is provided with a first widening portion 181, wherein the second widening portion 185 is located close to the bending section 15. The first widening portion 181 on the third fastening section 16 may be T-shaped with its long contact edge 182 close to the side of the bending section 15, and the narrow side of the first widening portion 181 close to the elastic abutment end 12. It should be noted that, in order to improve rigidity, each of the first fastening section 11 and / or the second fastening section 14 and / or the third fastening section 16 may also be widened to be narrower than the bearing width.

[0027] Please see Figures 1 to 11 and Figures 16 to 19 The plastic housing 2 is injection molded from plastic and has an overall rectangular or other geometric structure. Therefore, the plastic housing 2 has length, width, and height. For ease of understanding, the direction of the length of the plastic housing 2 is defined as the length direction, the direction of the width of the plastic housing 2 as the width direction, and the direction of the height of the plastic housing 2 as the insertion direction. The mating between the plastic housing 2 and the complementary connector is achieved along the insertion direction. The two opposite sides of the plastic housing 2 along the insertion direction are respectively configured as mating surfaces 211 and soldering surfaces 212. The mating surfaces 211 face the complementary connector for mating with it, and the soldering surfaces 212 are used to connect to the circuit board or other electrical equipment to achieve electrical connection. To ensure the mating conduction between the terminal assembly 1 and the complementary connector, a cavity 22 is provided inside the plastic housing 2 corresponding to the terminal assembly 1 for insertion along the insertion direction. The cavity 22 includes a mating cavity 22a for the complementary connector to be mated therein, a first mating cavity 22b formed on the plastic housing 2, a second mating cavity 22c formed on the plastic housing 2, a third mating cavity 22d formed on the plastic housing 2, and a fourth mating cavity 22e formed on the plastic housing 2.

[0028] To facilitate mating with complementary connectors, a mating cavity 22a is formed within the plastic housing 2, extending through the mating surface 211 along the mating direction. The mating cavity 22a is rectangular in shape, with its length, width, and height corresponding one-to-one with the length, width, and height of the plastic housing 2. Two cavity surfaces of the mating cavity 22a, positioned opposite each other along the width direction, are defined as a first cavity surface 221 and a second cavity surface 222. A rectangular cavity is recessed along the width direction on the second cavity surface 222, creating a third cavity surface 223 in the mating cavity 22a, positioned opposite to the first cavity surface 221 along the width direction. The first mating cavity 22b extends through the first cavity surface 221 along the width direction, the second mating cavity 22c and the fourth mating cavity 22e extend through the second cavity surface 222 along the width direction, and the third mating cavity 22d extends through the third cavity surface 223 along the width direction. The third insertion cavity 22d is located between the second insertion cavity 22c and the fourth insertion cavity 22e. The first terminal 1a is inserted into the first insertion cavity 22b, and the arched section 121 of the elastic abutment end 12 passes through the first cavity surface 221 in the width direction and extends inward into the insertion cavity 22a. The second terminal 1b is inserted into the second insertion cavity 22c, and the arched section 121 of the elastic abutment end 12 passes through the second cavity surface 222 in the width direction and extends inward into the insertion cavity 22a. The third terminal 1c is inserted into the third insertion cavity 22d, and the arched section 121 of the elastic abutment end 12 passes through the third cavity surface 223 in the width direction and extends inward into the insertion cavity 22a. The fourth terminal 1d is inserted into the fourth insertion cavity 22e, and the arched section 121 of the elastic abutment end 12 passes through the second cavity surface 222 in the width direction and extends inward into the insertion cavity 22a.

[0029] The number of first insertion cavities 22b and first terminals 1a are one-to-one and are distributed at equal intervals along the longitudinal direction on the side of the plastic housing 2 that is closer to the first cavity surface 221 relative to the insertion cavity 22a, so as to connect the insertion cavity 22a through an opening in the first cavity surface 221. The number of second insertion cavities 22c and second terminals 1b are in one-to-one correspondence, the number of third insertion cavities 22d and third terminals 1c are in one-to-one correspondence, and the number of fourth insertion cavities 22e and fourth terminals 1d are in one-to-one correspondence. The second insertion cavities 22c, third insertion cavities 22d and fourth insertion cavities 22e are distributed at equal intervals along the longitudinal direction. The second insertion cavities 22c and fourth insertion cavities 22e are distributed on the side of the plastic housing 2 that is closer to the second cavity surface 222 relative to the insertion cavity 22a, so as to communicate with the insertion cavity 22a through an opening on the second cavity surface 222. The third insertion cavity 22d is distributed on the side of the plastic housing 2 that is closer to the third cavity surface 223 relative to the insertion cavity 22a, so as to communicate with the insertion cavity 22a through an opening on the third cavity surface 223.

[0030] Corresponding to the shapes of the first terminal 1a and the third terminal 1c, the first insertion cavity 22b and the third insertion cavity 22d each include a first cavity segment 224 that penetrates the welding surface 212 along the insertion direction and a second cavity segment 225 that penetrates the mating surface 211 from the first cavity segment 224 along the insertion direction. The second cavity segment 225 communicates inwardly with the mating cavity 22a in the width direction so that the elastic abutment end 12 can pass through into the mating cavity 22a. To accommodate the abutment structure of the first terminal 1a and the third terminal 1c, recesses are made on both sides of the first cavity section 224 of the first insertion cavity 22b and the third insertion cavity 22d along the width direction to widen the first cavity section 224 and form a first fastening cavity section 231. The first fastening cavity section 231 extends through the welding surface 212 along the insertion direction so that the first fastening section 11 corresponding to the first terminal 1a or the third terminal 1c can be inserted into the first fastening cavity section 231 and pressed against the inner wall of the first fastening cavity section 231 by the short contact edge 186, the long contact edge 182 and the contact point 184 of the abutment structure, thereby achieving a tight fit between the first fastening cavity section 231 and the first fastening section 11.

[0031] Corresponding to the shapes of the second terminal 1b and the fourth terminal 1d, both the second insertion cavity 22c and the fourth insertion cavity 22e include a third cavity segment 226 extending through the welding surface 212 in the insertion direction and a fourth cavity segment 227 extending from the third cavity segment 226 through the mating surface 211 in the insertion direction. The fourth cavity segment 227 communicates inwardly with the mating cavity 22a in the width direction so that the elastic abutment end 12 can pass through into the mating cavity 22a. In order to adapt to the abutment structure of the second terminal 1b and the fourth terminal 1d, the third cavity segment 226 and the fourth cavity segment 227 of the second insertion cavity 22c and the fourth insertion cavity 22e are recessed on both sides of the cavity wall in the width direction to widen the third cavity segment 226 or the fourth cavity segment 227 so that they respectively form the second fastening cavity segment 232 and the third fastening cavity segment 233. The second fastening cavity section 232 is located near the side wall of the first insertion cavity 22b along the width direction, and the third fastening cavity section 233 is located near the side wall of the first insertion cavity 22b along the width direction, and one side of the third fastening cavity section 233 extends into the third cavity section 226. Both the second fastening cavity section 232 and the third fastening cavity section 233 extend through the welding surface 212 along the insertion direction, so that the second fastening section 14 corresponding to the second terminal 1b or the fourth terminal 1d can be inserted into the second fastening cavity section 232 and pressed against the inner wall of the second fastening cavity section 232 by the short contact edge 186 and the contact point 184 of the abutment structure, thereby achieving a tight fit between the second fastening cavity section 232 and the second fastening section 14; so that the third fastening section 16 of the second terminal 1b or the fourth terminal 1d can be inserted into the third fastening cavity section 233 and pressed against the inner wall of the third fastening cavity section 233 by the long contact edge 182 of the abutment structure, thereby achieving a tight fit between the third fastening cavity section 233 and the third fastening section 16. The first fastening cavity section 231, the second fastening cavity section 232 and the third fastening cavity section 233 are configured together as the fastening cavity of the insertion cavity 22, and the abutment structure on each terminal is distributed at the two ends of the fastening cavity that are far apart along the insertion direction.

[0032] In this embodiment, a recessed cavity 24 is formed on the welding surface 212 of the plastic housing 2 to provide installation space for each first welding end 13 and second welding end 17. The recessed cavity 24 communicates with the insertion cavity 22 along the insertion direction, and each first welding end 13 and second welding end 17 is located within the recessed cavity 24. Two positioning posts 25 are symmetrically protruded on the welding surface 212 of the plastic housing 2. The two positioning posts 25 are distributed on both sides of the recessed cavity 24 along the longitudinal direction to increase the connection strength between the plastic housing 2 and the circuit board by welding with the circuit board. To further increase the connection strength between the plastic housing 2 and the circuit board, two welding pull tabs 26 are installed on the plastic housing 2. The two welding pull tabs 26 protrude from the welding surface 212 for welding with the circuit board. The welding pull tab 26 is installed by inserting it into the plastic housing 2 along the insertion direction. A T-shaped groove can be opened on the plastic housing 2 and pass through it along the insertion direction. The welding pull tab 26 is also set in a T-shape so that it can be inserted into the T-shaped groove to complete the installation.

[0033] The operation of one embodiment of the high-speed connector of this utility model is as follows: After aligning the first terminal 1a, the second terminal 1b, the third terminal 1c, and the fourth terminal 1d with the soldering surface 212 to the first insertion cavity 22b, the second insertion cavity 22c, the third insertion cavity 22d, and the fourth insertion cavity 22e respectively, the elastic abutment end 12 of the first terminal 1a is moved along the width direction from the first cavity surface 221 toward the second cavity surface 222, and the elastic abutment ends 12 of the second terminal 1b and the fourth terminal 1d are moved along the width direction... The third terminal 1c is inserted sequentially from the side of the second cavity surface 222 facing the first cavity surface 221, with the elastic abutment end 12 of the third terminal 1c inserted from the side of the third cavity surface 223 facing the first cavity surface 221 in the width direction, until the first fastening section 11 is inserted into the first fastening cavity section 231, the second fastening section 14 is inserted into the second fastening cavity section 232, and the third fastening section 16 is inserted into the third fastening cavity section 233. Then, the first soldering end 13 and the second soldering end 17 are soldered to the circuit board or electrical component in sequence to complete the installation. In use, the mating surface 211 side faces the complementary connector, so that the complementary connector and the mating cavity 22a are mated and engaged. Conductivity is achieved by the elastic abutment end 12 abutting against the complementary terminal of the complementary connector.

[0034] Compared with the prior art, the high-speed connector of this invention provides a more reliable and robust fit between the terminal assembly 1 and the plastic housing 2. In particular, the staggered positioning of the second fastening section 14 and the second fastening section 14 further enhances the stability of the terminal assembly 1 during insertion and removal of the complementary connector. By dispersing stress from different directions, the robustness between the terminal assembly 1 and the plastic housing 2 is improved.

Claims

1. A high-speed connector, comprising a plastic housing and a terminal assembly, wherein the plastic housing has a cavity corresponding to the terminal assembly for insertion into the terminal assembly along an insertion direction, the cavity having a mating cavity for mating of a complementary connector; characterized in that: The terminal assembly has a fastening portion for insertion into a cavity and an elastic abutment portion that connects to the fastening portion and extends into the cavity. The fastening portion has a plurality of spaced abutment structures along the insertion direction. The cavity has a fastening chamber for surrounding the abutment structure and for abutting the abutment structure therein.

2. The high-speed connector as described in claim 1, characterized in that: At least two of the aforementioned abutment structures are located at positions away from each other along the insertion direction of the fastening cavity.

3. The high-speed connector as described in claim 1 or 2, characterized in that: At least one of the abutment structures includes a first widened portion that protrudes backward from both sides of the terminal assembly; the first widened portion has a long contact edge for abutting against the fastening cavity.

4. The high-speed connector as described in claim 3, characterized in that: At least one of the abutment structures includes barbs that protrude backward from both sides of the terminal assembly and are inclined toward the side away from the resilient abutment portion; the barbs have two contact points for abutting the fastening cavity.

5. The high-speed connector as described in claim 4, characterized in that: At least one of the abutment structures includes a second widened portion that protrudes backward from both sides of the terminal assembly; the second widened portion has a short contact edge that is shorter than the long contact edge for abutting the fastening cavity.

6. The high-speed connector as described in claim 5, characterized in that: The second widened portion is located between the first widened portion and the barb portion.

7. The high-speed connector as described in claim 5, characterized in that: The plastic shell has a mating surface on one side along the insertion direction. A mating cavity is formed within the plastic shell, extending through the mating surface along the insertion direction. The mating cavity has a first cavity surface and a second cavity surface distributed opposite to each other on both sides along its width. A third cavity surface is recessed on the second cavity surface to form a third cavity surface distributed opposite to the first cavity surface. The mating cavity includes a first insertion cavity formed on the plastic shell and extending through the first cavity surface, a second insertion cavity formed on the plastic shell and extending through the second cavity surface, a third insertion cavity formed on the plastic shell and extending through the third cavity surface, and a third insertion cavity formed on the plastic shell and extending through… The fourth insertion cavity of the second cavity surface, and the third insertion cavity is located between the second insertion cavity and the fourth insertion cavity: the terminal assembly includes a first terminal inserted into the first insertion cavity, a second terminal inserted into the second insertion cavity, a third terminal inserted into the third insertion cavity, and a fourth terminal inserted into the fourth insertion cavity; the first terminal, the second terminal, the third terminal and the fourth terminal each have an elastic abutment end extending into the insertion cavity to jointly form the elastic abutment portion, and the elastic abutment ends of the first terminal and the second, third and fourth terminals are spaced apart.

8. The high-speed connector as described in claim 7, characterized in that: Both the first terminal and the third terminal include a first fastening section distributed along the insertion direction and a first welding end bent from the end of the first fastening section. The corresponding elastic abutment end is connected to the first fastening section, and at least two abutment structures are formed on the first fastening section. The plastic housing has welding surfaces distributed opposite to the mating surface along the insertion direction. Both the first insertion cavity and the third insertion cavity include a first cavity segment penetrating the welding surface along the insertion direction and a second cavity segment penetrating the mating surface along the insertion direction from the first cavity segment and communicating with the mating cavity inward along the width direction so that the elastic abutment end can pass through. The fastening cavity includes a first fastening cavity segment that is widened from the cavity wall of the first cavity segment so that the first fastening section can be tightly fitted therein.

9. The high-speed connector as described in claim 8, characterized in that: Both the second terminal and the fourth terminal include a second fastening section distributed along the insertion direction, a bent section bent from the second fastening section, a third fastening section continuing to be distributed along the insertion direction after bending from the bent section, and a second welding end bent from the second fastening section. The corresponding elastic abutment end is connected to the third fastening section. The first fastening section, the second fastening section, and the third fastening section are jointly configured as the fastening portion. At least one of the abutment structures is formed on the second fastening section and the third fastening section. Both the second insertion cavity and the fourth insertion cavity include a third cavity section penetrating the welding surface along the insertion direction and a fourth cavity section penetrating the mating surface along the insertion direction from the third cavity section and communicating with the mating cavity inward along the width direction so that the elastic abutment end can pass through. The fastening cavity includes a second fastening cavity section opened by widening the cavity wall of the third cavity section so that the second fastening section can be tightly fitted therein, and a third fastening cavity section opened by widening the cavity wall of the fourth cavity section so that the third fastening section can be tightly fitted therein.

10. The high-speed connector as described in claim 9, characterized in that: The first fastening section is provided with a first widening part, a second widening part and a barb part in sequence, the second fastening section is provided with a barb part and a second widening part in sequence, and the third fastening section is provided with a first widening part.

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