Memory module connector

Abstract

The utility model provides a memory module connector, which is used for butting a memory module and comprises a circuit board, an insulating board and a plurality of terminals. The circuit board is provided with a butt joint face, and a circuit is arranged on the butt joint face. The insulating plate is provided with a first surface and a second surface which are oppositely arranged, the insulating plate is attached to the butt joint face, the first surface is attached to the butt joint face, the insulating plate is provided with a plurality of through grooves, and the through grooves are connected between the first surface and the second surface respectively. The terminals are respectively arranged in the plurality of through grooves in a penetrating manner, each terminal is a flat plate body and defines a thickness direction, each terminal is provided with an arc-shaped elastic arm, the arc-shaped elastic arm extends along a plane vertical to the thickness direction of the terminal, and the plurality of terminals are arranged in parallel and are arranged along the thickness direction of each terminal; the plurality of terminals are respectively exposed at two ends of each through groove, one end of each terminal abuts against the circuit, and the other end of each terminal is exposed on the second surface in a protruding mode.

Description

Technical Field

[0001] The present application relates to a memory module connection, and more particularly to a memory module connector, and more particularly to a memory module connector with a structurally improved terminal. Background Art

[0002] CAMM2, short for Compression Attached Memory Module Gen 2, was first proposed by Dell in 2022 and later promoted by the JEDEC Association. CAMM2 utilizes compression terminals to enhance connector reliability, shorten signal transmission distances within the connector, and accelerate signal transmission. It also supports memory capacities up to 128GB, and its structural configuration facilitates heat dissipation within the memory module.

[0003] Conventionally used compression terminals are manufactured by bending straight metal sheets formed by stamping (forming type). However, because the stamping process requires a consistent sheet thickness, the thickness of the base of the spring arm is limited to the thickness of the stamping material. Widening the base to provide greater structural strength increases the overall width of the terminal, reducing the distance between adjacent terminals. This in turn increases mutual interference between signals transmitted between adjacent terminals, reducing signal integrity.

[0004] In other words, the electrical characteristics and structural strength of the conventional compression terminals are limited by the manufacturing process and are difficult to improve.

[0005] In view of this, the present inventor has conducted intensive research on the above-mentioned prior art and applied theoretical knowledge to try his best to solve the above-mentioned problems, which has become the goal of the present inventor's improvement. Utility Model Content

[0006] The present application provides a memory module connector, and more particularly, a memory module connector with structurally improved terminals.

[0007] The present application provides a memory module connector for docking memory modules. The memory module connector includes a circuit board, an insulating plate, and multiple terminals. The circuit board has a docking surface on which a circuit is disposed. The insulating plate has a first surface and a second surface disposed opposite each other. The insulating plate is attached to the docking surface, with the first surface attached to the docking surface. The insulating plate has multiple through-slots, each connected between the first and second surfaces. Terminals are respectively disposed within the through-slots. Each terminal is a flat plate having a defined thickness direction. Each terminal has an arc-shaped elastic arm extending along a plane perpendicular to the thickness direction of the terminal. The multiple thickness directions of the multiple terminals are arranged parallel to each other and the multiple terminals are arranged in a matrix. The multiple terminals are exposed at both ends of each through-slot. Each terminal has a first end and a second end. The first end of each terminal abuts the circuit, and the second end protrudes from the second surface. When the memory modules are docked, the memory module abuts the second end of each terminal. Each arc-shaped elastic arm is compressed and clamped between the circuit board and the memory module, causing the first and second ends of each terminal to contact each other.

[0008] In one embodiment of the present application, each terminal has a pair of trigger handles, which are respectively arranged at the two ends of the arc-shaped elastic arm, and each trigger handle has an outer end and an inner end. The two inner ends of the two trigger handles are arranged facing each other, wherein the outer end of the trigger handle abuts the circuit, and the outer end of the other trigger handle protrudes from the second surface.

[0009] In one embodiment of the present application, in each terminal, when the arc-shaped elastic arm is compressed and clamped between the circuit board and the memory module, the two inner ends of the two trigger handles contact each other.

[0010] In one embodiment of the present application, each terminal has a first hook, which protrudes from one side of the terminal along the thickness direction of the terminal and is engaged with the inner wall of the corresponding through slot.

[0011] In one embodiment of the present application, in each terminal, a first hook is formed on the terminal by stamping, a first opening is formed on the terminal corresponding to the root of the first hook, and the root of the first hook is connected to the inner edge of the first opening.

[0012] In one embodiment of the present application, in each terminal, the terminal has a stop portion, which protrudes from one side of the terminal along the thickness direction of the terminal, and a plurality of stop grooves are provided on the first surface of the insulating plate corresponding to the plurality of through grooves, each stop groove is connected to the corresponding through groove, and each stop portion is respectively provided in the corresponding stop groove.

[0013] In one embodiment of the present application, in each terminal, the stop portion extends from one edge of the terminal, and the stop portion is bent to be parallel to the thickness direction of the terminal.

[0014] In one embodiment of the present application, each terminal has a second hook, the second hook protrudes from a side surface of the stop portion, and the second hook is engaged with an inner wall of the corresponding stop groove.

[0015] In one embodiment of the present application, in each terminal, the second hook is formed on the terminal by stamping, a second opening is formed on the terminal corresponding to the root of the second hook, and the root of the second hook is connected to the inner edge of the second opening.

[0016] In one embodiment of the present application, the distance between two adjacent terminals is greater than 10 times the thickness of the terminals.

[0017] The memory module connector of the present application has a larger spacing between two adjacent terminals relative to the thickness of the terminals, thereby reducing mutual interference between signals transmitted in the two adjacent terminals and improving signal integrity.

[0018] According to the requirement that the arc-shaped spring arm bears the compression force, the terminal can be widened to provide higher structural strength without increasing the overall width of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic exploded perspective view of a memory module connector and a memory module according to an embodiment of the present application.

[0020] Figure 2 This is a schematic exploded perspective view of a memory module connector according to an embodiment of the present application.

[0021] Figure 3 This is a three-dimensional schematic diagram of the terminals of a memory module connector according to an embodiment of the present application.

[0022] Figure 4 This is another perspective schematic diagram of the terminals of a memory module connector according to an embodiment of the present application.

[0023] Figure 5 This is an enlarged view of the terminals of a memory module connector according to one embodiment of the present application.

[0024] Figure 6 Another enlarged view of the terminals of the memory module connector according to one embodiment of the present application.

[0025] Figure 7 for Figure 6 The cross-sectional view shown is at 7-7.

[0026] Figure 8 for Figure 6 The cross-sectional view shown is at 8-8.

[0027] Figure 9 for Figure 6 The cross-sectional view shown is at 9-9.

[0028] Figure 10 for Figure 6 A cross-sectional view at 10-10 is shown.

[0029] Figure 11 This is a cross-sectional view of the terminals of a memory module connector according to one embodiment of the present application when docked with a memory module.

[0030] Description of reference numerals:

[0031] 10: memory module connector;

[0032] 20: memory module;

[0033] 30: base;

[0034] 100: circuit board;

[0035] 101: docking surface;

[0036] 102: locking hole;

[0037] 110: circuit;

[0038] 200: insulation board;

[0039] 201: first surface;

[0040] 202: second surface;

[0041] 203: wear groove;

[0042] 204: stop groove;

[0043] 210: sleeve;

[0044] 211: locking screw;

[0045] 300: terminal;

[0046] 300a: first end portion;

[0047] 300b: second end portion;

[0048] 301: thickness direction;

[0049] 302: thickness;

[0050] 303: spacing;

[0051] 310: arc-shaped elastic arm;

[0052] 311: fixed portion;

[0053] 312: arm;

[0054] 3121: end;

[0055] 3122: Root end;

[0056] 320a, 320b: trigger handle;

[0057] 321a, 321b: outer end;

[0058] 322a, 322b: inner end;

[0059] 331: First hook;

[0060] 332: first port;

[0061] 340: stopper;

[0062] 341: Second hook;

[0063] 342: The second port. DETAILED DESCRIPTION

[0064] In the description of this application, it should be understood that the terms "front side", "rear side", "left side", "right side", "front end", "rear end", "end", "longitudinal", "lateral", "vertical", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a restriction on this application.

[0065] As used herein and not otherwise defined, the terms "substantially" and "approximately" are used to describe and describe small variations. When applied to an event or circumstance, the terms may include the exact moment at which the event or circumstance occurred, as well as the approximate point at which the event or circumstance occurred. For example, when applied to a numerical value, the terms may include a variation range of less than or equal to ±10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0066] The detailed description and technical contents of this application will be described below with reference to the accompanying drawings. However, the accompanying drawings are for illustrative purposes only and are not intended to limit this application.

[0067] Figure 1 This is a perspective exploded schematic diagram of a memory module connector 10 and a memory module 20 according to an embodiment of the present application; Figure 2 FIG1 is a perspective exploded diagram of a memory module connector 10 according to an embodiment of the present application. Figure 1 and Figure 2 One embodiment of the present application provides a memory module connector 10 for docking a memory module 20. In this embodiment, the memory module connector 10 includes a circuit board 100, an insulating plate 200, and a plurality of terminals 300.

[0068] See Figure 1 The circuit board 100 has a mating surface 101 on which a circuit 110 is arranged. The circuit board 100 also has at least one fastening hole 102. In this embodiment, the circuit board 100 has three fastening holes 102, but this application does not limit the number. Specifically, each fastening hole 102 passes through the circuit board 100.

[0069] The insulating plate 200 has a first surface 201 and a second surface 202 that are oppositely disposed. The insulating plate 200 is attached to the mating surface 101, with the first surface 201 adhering to the mating surface 101. The insulating plate 200 has a plurality of through-slots 203, each connected between the first surface 201 and the second surface 202. The insulating plate 200 is provided with at least one sleeve 210 corresponding to the fastening holes 102 on the circuit board 100. In this embodiment, the insulating plate 200 has three sleeves 210 corresponding to the three fastening holes 102 on the circuit board 100, but this is not a limitation. Specifically, each sleeve 210 extends through the insulating plate 200.

[0070] The circuit board 100 and the insulating plate 200 are stacked and attached to the base 30. Specifically, each sleeve 210 of the insulating plate 200 is penetrated by a locking screw 211. Each locking screw 211 passes through a corresponding locking hole 102 on the circuit board 100 and is locked to the base 30, thereby securing the memory module connector 10 of the present application to the base 30. The base 30 is a structural member that houses the memory module connector 10 and can be any component of an electronic device. When the memory module 20 is docked with the memory module connector 10, each locking screw 211 further passes through the memory module 20 to secure it to the memory module connector 10.

[0071] Figure 3 A perspective schematic diagram of a terminal 300 of a memory module connector 10 according to an embodiment of the present application; Figure 4 FIG. 1 is another perspective diagram of the terminal 300 of the memory module connector 10 according to an embodiment of the present application.

[0072] See Figure 3 and Figure 4In this embodiment, each terminal 300 is formed by stamping (blank or forming). Therefore, each terminal 300 is a flat plate having a thickness direction 301 and a first end 300a and a second end 300b. Each terminal 300 has an arcuate elastic arm 310 extending along a plane perpendicular to the thickness direction 301 of the terminal 300 to the first end 300a and the second end 300b.

[0073] Figure 5 An enlarged view of a terminal 300 of a memory module connector 10 according to an embodiment of the present application; Figure 6 This is another enlarged view of the terminal 300 of the memory module connector 10 according to one embodiment of the present application. Figure 5 and Figure 6 The multiple terminals 300 are respectively inserted into each through slot 203 , the multiple terminals 300 are arranged parallel to each other and along the thickness direction 301 of each terminal 300 , and the multiple terminals 300 are respectively exposed at both ends of each through slot 203 .

[0074] Ginseng Figure 3 and Figure 4 In each terminal 300, a pair of trigger handles 320a, 320b are formed at the first end 300a and the second end 300b, respectively. The trigger handles 320a, 320b are disposed at opposite ends of an arc-shaped elastic arm 310. Each trigger handle 320a, 320b has an outer end 321a, 321b and an inner end 322a, 322b, respectively. The inner ends 322a, 322b of the two trigger handles 320a, 320b are disposed facing each other. Specifically, the arc-shaped elastic arm 310 has a fixed portion 311, and a pair of arms 312 extend from opposite sides of the fixed portion 311. Each arm 312 has a root end 3122 connected to the fixed portion 311 and a terminal end 3121 opposite the root end 3122. The trigger handles 320a, 320b are disposed at each terminal end 3121.

[0075] See Figures 3 to 6 In each terminal 300, the terminal 300 has a stopper 340, and the stopper 340 protrudes from one side of the terminal 300 along the thickness direction 301 of the terminal 300. Figures 6 to 9 A plurality of stop grooves 204 are provided on the first surface 201 of the insulating plate 200 corresponding to the plurality of through-grooves 203. Each stop groove 204 communicates with one side of a corresponding through-grooves 203, and each stop portion 340 is disposed within a corresponding stop groove 204. The stop portion 340 extends from one edge of the terminal 300 and is bent parallel to the thickness direction 301 of the terminal 300.

[0076] See Figure 3 、 Figure 4 、 Figure 8 and Figure 10 , in each terminal 300, the terminal 300 has at least one hook. The terminal 300 shown in this embodiment is provided with two hooks, namely a first hook 331 and a second hook 341, but the present application does not limit their number. The first hook 331 protrudes from one side of the terminal 300 along the thickness direction 301 of the terminal 300, and the first hook 331 is engaged with the inner wall of the corresponding through groove 203. The first hook 331 is formed on the terminal 300 by stamping, and a first through opening 332 is formed on the terminal 300 corresponding to the first hook 331, and the root of the first hook 331 is connected to the inner edge of the through opening 332. For further information, refer to Figure 3 、 Figure 4 and Figure 8 The second hook 341 protrudes from the side of the stopper 340 and engages with the inner wall of the corresponding stopper groove 204. The second hook 341 is stamped on the terminal 300. A second opening 342 is formed on the terminal 300 corresponding to the second hook 341, and the base of the second hook 341 is connected to the inner edge of the second opening 342.

[0077] Figure 11 This is a cross-sectional view of the terminal 300 of the memory module connector 10 when docking with the memory module 20 according to one embodiment of the present application. Figure 3 、 Figure 4 、 Figure 8 and Figure 11 In each terminal 300, one end abuts the circuit board 110 on the circuit board 100, electrically connecting the circuit board 100. The other end of the terminal 300 protrudes from the second surface 202 to allow docking with the memory module 20. Specifically, the outer end 321a of one trigger handle 320a protrudes from the first surface 201 to abut the circuit board 110, while the outer end 321b of the other trigger handle 320b protrudes from the second surface 202. When the memory module 20 is docked, the memory module 20 adheres to the second surface 202, causing the curved elastic arms 310 to be compressed and clamped between the circuit board 100 and the memory module 20, bringing the two ends of each terminal 300 into contact with each other. When the curved elastic arm 310 is compressed and clamped between the circuit board 100 and the memory module 20, the inner ends 322a, 322b of the two trigger handles 320a, 320b contact each other. Signals can be transmitted through the shortest path formed by the two trigger handles 320a, 320b rather than through the entire curved elastic arm 310. This reduces signal transmission impedance and improves the high-frequency characteristics of the signal.

[0078] See Figure 6The thickness 302 of the terminal 300 is between 0.05 mm and 0.1 mm, and the distance 303 between two adjacent terminals 300 is greater than 10 times the thickness 302 of the terminal 300. In this embodiment, the thickness 302 of the terminal 300 is 0.06 mm, and the distance 303 between two adjacent terminals 300 is 0.87 mm, but the present application is not limited to this. Therefore, the larger distance 303 between two adjacent terminals 300 relative to the thickness 302 of the terminal 300 can reduce mutual interference between signals transmitted between the two adjacent terminals 300, thereby improving signal integrity.

[0079] See Figure 3 、 Figure 4 、 Figure 7 and Figure 11 The compressive stress concentration point when the terminal 300 is compressed is at the root end 3122 of each arm portion 312. In each terminal 300 of the memory module connector of the present application, the root end 3122 of each arm portion 312 can be widened to provide higher structural strength without increasing the overall width of the terminal 300, based on the requirement that the curved elastic arm 310 withstand the compressive force. This prevents the curved elastic arm 310 from being compressed and breaking.

[0080] The above description is only a preferred embodiment of the present application and is not intended to limit the patent scope of the present application. Other equivalent variations that apply the patent spirit of the present application should all fall within the patent scope of the present application.

Claims

1. A memory module connector, characterized in that: Used for docking a memory module, the memory module connector includes: A circuit board having a mating surface, wherein a circuit is arranged on the mating surface; an insulating plate having a first surface and a second surface arranged opposite to each other, the insulating plate being attached to the mating surface, with the first surface attached to the mating surface, the insulating plate having a plurality of through slots, each of the through slots being connected between the first surface and the second surface; and A plurality of terminals are respectively arranged in the plurality of through-slots, each of the terminals is a flat plate and defines a thickness direction, each of the terminals has an arc-shaped elastic arm, and the arc-shaped elastic arm extends along a plane perpendicular to the thickness direction of the terminal, the plurality of thickness directions of the plurality of terminals are arranged parallel to each other and the plurality of terminals are arranged in a matrix, the plurality of terminals are respectively exposed at both ends of each of the through-slots, each of the terminals has a first end and a second end, the first end of each terminal abuts against the circuit and the second end protrudes from the second surface, when the memory module is docked, the memory module abuts against the second end of each terminal, and each of the arc-shaped elastic arms is compressed and clamped between the circuit board and the memory module so that the first end and the second end of each terminal contact each other.

2. The memory module connector according to claim 1, wherein: In each of the terminals, the terminal has a pair of touch handles, which are respectively arranged at the two ends of the arc-shaped elastic arm, and each of the touch handles has an outer end and an inner end. The two inner ends of the two touch handles are arranged facing each other, and the outer end of one of the touch handles abuts the circuit, and the outer end of the other touch handle protrudes from the second surface.

3. The memory module connector according to claim 2, wherein: In each of the terminals, when the arc-shaped elastic arm is compressed and clamped between the circuit board and the memory module, the two inner ends of the two trigger handles contact each other.

4. The memory module connector according to claim 1, wherein: In each of the terminals, the terminal has a first hook, the first hook protrudes from one side of the terminal along the thickness direction of the terminal, and the first hook is engaged with the inner wall of the corresponding through slot.

5. The memory module connector according to claim 4, wherein: In each of the terminals, the first hook is formed on the terminal by stamping, a first through opening is formed on the terminal corresponding to the first hook, and a root of the first hook is connected to an inner edge of the first through opening.

6. The memory module connector according to claim 1, wherein: In each of the terminals, the terminal has a stop portion, which protrudes from one side of the terminal along the thickness direction of the terminal. A plurality of stop grooves are provided on the first surface of the insulating plate corresponding to the plurality of through grooves. Each of the stop grooves is connected to one side of the corresponding through groove, and each of the stop portions is respectively provided in the corresponding stop groove.

7. The memory module connector according to claim 6, wherein: In each of the terminals, the stop portion extends from one edge of the terminal, and the stop portion is bent to be parallel to the thickness direction of the terminal.

8. The memory module connector according to claim 6, wherein: In each of the terminals, the terminal has a second hook, the second hook protrudes from the side surface of the stopping portion, and the second hook is engaged with the inner wall of the corresponding stopping groove.

9. The memory module connector according to claim 8, wherein: In each of the terminals, the second hook is formed on the terminal by stamping, a second opening is formed on the terminal corresponding to the second hook, and a root of the second hook is connected to an inner edge of the second opening.

10. The memory module connector according to claim 1, wherein: The distance between two adjacent terminals is greater than 10 times the thickness of the terminals.

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