A high-speed connector for preventing crosstalk

Abstract

The present invention provides a crosstalk-proof high-speed connector, including a socket, a slot provided on the socket, a plurality of first terminal slots and a second terminal slot provided at both ends of the slot, a first terminal fixed in the first terminal slot, the first terminal including a first welding portion, a first transmission portion, a first bending portion, and a first contact portion, the first bending portion is bent toward the second terminal, the first transmission portion is provided with a first positioning slot, a first notch slot is provided on the end face away from the second terminal, a first positioning block matching the first positioning slot is provided on the inner side of the first terminal slot, a first hot melt plate is connected to the front end of the first terminal slot, and a first protrusion matching the first notch slot is connected to the inner side of the first hot melt plate. The high-speed connector of the present invention has a simple structure, a high signal transmission speed, excellent terminal retention force, and can avoid low impedance and crosstalk problems.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, and in particular to a crosstalk-proof high-speed connector. Background Art

[0002] DDR, double data rate synchronous dynamic random access memory, strictly speaking, DDR should be called DDR SDRAM, but people usually call it DDR memory. DDR connector is a connector that connects memory stick and circuit board. For such storage products, the contact performance between memory stick and DDR connector, as well as the welding performance between DDR connector and circuit board have a great impact on the quality of the equipment. The DDR connector of the prior art has an unstable structure and poor SI performance.

[0003] In order to solve the above problems, a connector has emerged, such as the "A DDR Connector" disclosed in the application number 201910953544.2, which adopts a new terminal contact design, which has better SI performance, flatness and manufacturability, and the inner sides of both terminals are connected with locking plates, which reduces the risk of loosening of the terminals and ensures the structural stability of the terminals. This structure requires adding two locking plates on the inner side of the terminals to improve the holding force of the terminals, but the locking plate structure will cause low impedance and crosstalk problems in the terminals, affecting the high-speed operation of the connector. Summary of the invention

[0004] In view of the above problems, the present invention provides a crosstalk-proof high-speed connector with a simple structure, high signal transmission speed, excellent terminal retention force, and the ability to avoid low impedance and crosstalk problems.

[0005] To achieve the above object, the present invention solves the problem through the following technical solutions:

[0006] A crosstalk-proof high-speed connector comprises a socket, wherein the socket is provided with a slot, and the two ends of the slot are respectively provided with a plurality of first terminal slots and second terminal slots, the first terminal slot and the second terminal slot are staggered, a first terminal is fixed in the first terminal slot, the first terminal comprises a first welding portion, a first transmission portion connected to the upper end of the first welding portion, a first bending portion connected to the upper end of the first transmission portion, and a first contact portion connected to the end of the first bending portion, the first bending portion is bent toward the second terminal, a first positioning slot is provided on the end surface of the first transmission portion toward the second terminal, a first notch slot is provided on the end surface away from the second terminal, a first positioning block matching the first positioning slot is provided on the inner side of the first terminal slot, and a first terminal slot front end is connected to the A first hot melt plate is provided, a first protrusion matching the first notch groove is connected to the inner side of the first hot melt plate, a second terminal is fixed in the second terminal groove, the second terminal includes a second welding portion, a second transmission portion connected to the upper end of the second welding portion, a second bending portion connected to the upper end of the second transmission portion, and a second contact portion connected to the end of the second bending portion, the second bending portion is bent toward the second terminal, a second positioning groove is provided on the end face of the second transmission portion toward the first terminal, and a second notch groove is provided on the end face away from the first terminal, a second positioning block matching the second positioning groove is provided on the inner side of the second terminal groove, a second hot melt plate is connected to the front end of the second terminal groove, and a second protrusion matching the second notch groove is connected to the inner side of the second hot melt plate.

[0007] Specifically, first protrusions are provided on both side surfaces of the first transmission portion.

[0008] Specifically, second protrusions are provided on both side surfaces of the second transmission portion.

[0009] Specifically, both ends of the socket are connected to brackets, a support plate is fixed to the bottom of the bracket, and a support foot is connected to the bottom of the support plate.

[0010] Specifically, a mounting hole is provided at the bottom of the supporting foot.

[0011] The beneficial effects of the present invention are:

[0012] First, the DDR connector of the present invention is different from the conventional vertical connector in that the slot is designed to be inserted horizontally, so that the memory card can be placed horizontally after being inserted, thereby reducing the overall height;

[0013] Second, the structure is stable. The terminals are fixed by hot melt plates, and the terminals have excellent holding force in the terminal slots. The structure does not use a locking plate, which can avoid low impedance and crosstalk problems and increase signal transmission speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structure of a high-speed connector for preventing crosstalk according to the present invention Figure 1 .

[0015] Figure 2 for Figure 1 Magnified view of part C.

[0016] Figure 3 A three-dimensional structure of a high-speed connector for preventing crosstalk according to the present invention Figure 2 .

[0017] Figure 4 The figure is a front view of a crosstalk-proof high-speed connector of the present invention.

[0018] Figure 5 for Figure 4 Cross-section view of the AA surface in the middle.

[0019] Figure 6 for Figure 4 Cross-section view of the middle BB surface.

[0020] Figure 7 It is a schematic structural diagram of the first terminal in the present invention.

[0021] Figure 8 It is a schematic structural diagram of the second terminal in the present invention.

[0022] The figures are marked as: socket 1, slot 11, first terminal slot 12, second terminal slot 13, first positioning block 14, second positioning block 15, first terminal 2, first welding part 21, first transmission part 22, first positioning groove 221, first notch groove 222, first float 223, first bending part 23, first contact part 24, first hot melt plate 3, first protrusion 31, second terminal 4, second welding part 41, second transmission part 42, second positioning groove 421, second notch groove 422, second float 423, second bending part 43, second contact part 44, second hot melt plate 5, second protrusion 51, bracket 6, support plate 7, support foot 71, mounting hole 711. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with examples and drawings, but the embodiments of the present invention are not limited thereto.

[0024] like Figure 1-8 As shown:

[0025] A crosstalk-proof high-speed connector comprises a socket 1, a slot 11 is provided on the socket 1, a plurality of first terminal slots 12 and second terminal slots 13 are respectively provided at both ends of the slot 11, the first terminal slot 12 and the second terminal slot 13 are staggered, a first terminal 2 is fixed in the first terminal slot 12, the first terminal 2 comprises a first welding portion 21, a first transmission portion 22 connected to the upper end of the first welding portion 21, a first bending portion 23 connected to the upper end of the first transmission portion 22, and a first contact portion 24 connected to the end of the first bending portion 23, the first bending portion 23 is bent toward the second terminal 4, a first positioning groove 221 is provided on the end surface of the first transmission portion 22 toward the second terminal 4, a first notch groove 222 is provided on the end surface away from the second terminal 4, and the first end A first positioning block 14 matching the first positioning groove 221 is provided on the inner side of the sub-groove 12. When the first terminal 2 is installed, the first positioning block 14 is embedded in the first positioning groove 221 to prevent the first terminal 2 from being displaced when the first hot melt plate 3 is subsequently formed. The front end of the first terminal groove 12 is connected to the first hot melt plate 3, and the inner side of the first hot melt plate 3 is connected to a first protrusion 31 matching the first notch groove 222. After the first hot melt plate 3 is hot-melted, a first protrusion 31 embedded in the first notch groove 222 is formed at the front end thereof. With the positioning effect of the first positioning block 14, the longitudinal holding force of the first terminal 2 in the first terminal groove 12 can be improved, and there is no need to use a locking plate or latch to fix the first terminal 2 and the socket 1, which can avoid low impedance and crosstalk problems when transmitting signals.

[0026] A second terminal 4 is fixed in the second terminal groove 13, and the second terminal 4 includes a second welding portion 41, a second transmission portion 42 connected to the upper end of the second welding portion 41, a second bending portion 43 connected to the upper end of the second transmission portion 42, and a second contact portion 44 connected to the end of the second bending portion 43. The second bending portion 43 is bent toward the second terminal 4. The end surface of the second transmission portion 42 toward the first terminal 2 is provided with a second positioning groove 421, and the end surface away from the first terminal 2 is provided with a second notch groove 422. A second positioning block 15 matching the second positioning groove 421 is provided inside the second terminal groove 13. When the second terminal 4 is installed, The second positioning block 15 is embedded in the second positioning groove 421 to prevent the second terminal 4 from being displaced when the second hot melt plate 5 is subsequently formed. The front end of the second terminal groove 13 is connected to the second hot melt plate 5, and the inner side of the second hot melt plate 5 is connected to a second protrusion 51 matching the second notch groove 422. After the second hot melt plate 5 is hot-melted, a second protrusion 51 embedded in the second notch groove 422 is formed at the front end thereof. With the positioning function of the second positioning block 15, the longitudinal holding force of the second terminal 4 in the second terminal groove 13 can be improved, and there is no need to use a locking plate or latch to fix the second terminal 4 and the socket 1, which can avoid low impedance and crosstalk problems when transmitting signals.

[0027] In order to further enhance the longitudinal holding force of the first terminal 2 in the first terminal groove 12, first protrusions 223 are provided on both side surfaces of the first transmission portion 22. After the first terminal 2 is inserted into the first terminal groove 12, the first protrusions 223 on both sides thereof abut against the inner wall of the first terminal groove 12 to ensure its longitudinal holding force.

[0028] In order to further enhance the longitudinal holding force of the second terminal 4 in the second terminal groove 13, second protrusions 423 are provided on both side surfaces of the second transmission portion 42. After the second terminal 4 is inserted into the second terminal groove 13, the second protrusions 423 on both sides thereof abut against the inner wall of the second terminal groove 13 to ensure its longitudinal holding force.

[0029] Both ends of the socket 1 are connected to brackets 6, a support plate 7 is fixed at the bottom of the bracket 6, a support foot 71 is connected to the bottom of the support plate 7, and a mounting hole 711 is provided at the bottom of the support foot 71. By utilizing the supporting function of the support foot 71 and designing the slot 11 to be plugged in horizontally, the memory card can be placed horizontally after being inserted, thereby reducing the overall height.

[0030] The above embodiment only expresses one implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A crosstalk-proof high-speed connector, comprising a socket (1), wherein the socket (1) is provided with a slot (11), and the two ends of the slot (11) are respectively provided with a plurality of first terminal slots (12) and second terminal slots (13), wherein the first terminal slots (12) and the second terminal slots (13) are staggered, and characterized in that: A first terminal (2) is fixed in the first terminal groove (12), the first terminal (2) comprising a first welding portion (21), a first transmission portion (22) connected to the upper end of the first welding portion (21), a first bending portion (23) connected to the upper end of the first transmission portion (22), and a first contact portion (24) connected to the end of the first bending portion (23), the first bending portion (23) is bent towards the second terminal (4), a first positioning groove (221) is provided on the end surface of the first transmission portion (22) towards the second terminal (4), and a first notch groove (222) is provided on the end surface away from the second terminal (4), a first positioning block (14) matching the first positioning groove (221) is provided on the inner side of the first terminal groove (12), a first hot melt plate (3) is connected to the front end of the first terminal groove (12), and a first protrusion (31) matching the first notch groove (222) is connected on the inner side of the first hot melt plate (3), A second terminal (4) is fixed in the second terminal groove (13), the second terminal (4) comprising a second welding portion (41), a second transmission portion (42) connected to the upper end of the second welding portion (41), a second bending portion (43) connected to the upper end of the second transmission portion (42), and a second contact portion (44) connected to the end of the second bending portion (43), the second bending portion (43) is bent towards the second terminal (4), a second positioning groove (421) is provided on the end surface of the second transmission portion (42) close to the first terminal (2), and a second notch groove (422) is provided on the end surface away from the first terminal (2), a second positioning block (15) matching the second positioning groove (421) is provided on the inner side of the second terminal groove (13), a second hot melt plate (5) is connected to the front end of the second terminal groove (13), and a second protrusion (51) matching the second notch groove (422) is connected on the inner side of the second hot melt plate (5).

2. The crosstalk-proof high-speed connector according to claim 1, characterized in that: Both side surfaces of the first transmission part (22) are provided with first floats (223).

3. The crosstalk-proof high-speed connector according to claim 1, characterized in that: Second floats (423) are provided on both side surfaces of the second transmission portion (42).

4. The crosstalk-proof high-speed connector according to claim 1, characterized in that: Both ends of the socket (1) are connected to brackets (6), a support plate (7) is fixed to the bottom of the bracket (6), and a support foot (71) is connected to the bottom of the support plate (7).

5. The crosstalk-proof high-speed connector according to claim 4, characterized in that: A mounting hole (711) is provided at the bottom of the supporting foot (71).

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