auxiliary plug-in device

Abstract

The application discloses an auxiliary plug-in device and belongs to the technical field of electronic assembly. The auxiliary plug-in device comprises a base device with a guide structure, the guide structure is used for guiding the insertion direction of a plug-in and limiting the width of the plug-in; a limiting device is installed on the base device, the limiting device is used for limiting the length of the plug-in arranged on the base device; and a pressure connection device is used for being arranged above the plug-in and applying downward pressure on the plug-in under the action of external force to insert the plug-in into a plug-in element. The auxiliary plug-in device can quickly and uniformly insert the plug-in pin of the plug-in into the plug-in element, improves the plug-in efficiency of the plug-in, and the plug-in pin of the plug-in does not have the phenomenon of bending needle, reduces the maintenance difficulty, and reduces the skill requirement and labor intensity of the operator.

Description

Technical Field

[0001] This invention relates to the field of electronic assembly technology, and more particularly to an auxiliary plug-in device. Background Technology

[0002] Servers, also known as servo servers, are devices that provide computing and storage services. With the development of technology, data processing volumes are increasing dramatically, and memory requirements are also growing. Therefore, a large number of modules, such as memory slots, need to be placed on the motherboard for memory expansion. Server motherboards typically have more than 10 memory slots. Currently, the next-generation Double Speed ​​(DDR4) memory modules still primarily use through-hole connectors. The production process involves operators manually inserting the memory slots into the copper-plated holes on the printed circuit board (PCB) before wave soldering. Because the memory slot pins are relatively thin and numerous (288 pins), misalignment or improper installation easily leads to bent pins. These slots are usually clustered together, making bent pins difficult to visually inspect and potentially revealing themselves at the wave soldering end, increasing repair difficulty. Furthermore, existing technologies using through-hole connectors also suffer from the same problem. Therefore, improving the accuracy of first-pass insertion for such devices is essential. Summary of the Invention

[0003] The main objective of this invention is to overcome the shortcomings of the existing operating methods and to propose an auxiliary insertion device that can quickly and evenly insert the pins of the plug into the component being plugged in, thereby improving the insertion efficiency of the plug and preventing the pins from bending.

[0004] To achieve the above objectives, the present invention provides an auxiliary insertion device, comprising: a base device having a guide structure for guiding the insertion direction of the insertion plug and limiting the width of the insertion plug; a limiting device mounted on the base device for limiting the length of the insertion plug placed on the base device; and a crimping device for being placed above the insertion plug and applying downward pressure to the insertion plug under external force to insert the insertion plug into the inserted element.

[0005] The base device includes a base, and the guide structure includes multiple partitions arranged in parallel on the base. A guide groove is formed between adjacent partitions for placing the plug and guiding the insertion direction of the plug and limiting the width of the plug.

[0006] The limiting device includes a slide rod mounted on the base and movable along the length extension direction of the guide groove.

[0007] The slide bar is provided with a baffle that extends into the guide groove.

[0008] Furthermore, the limiting device also includes a pushing structure rotatably mounted on the base for pushing the slide bar to move along the extension direction of the guide groove.

[0009] Preferably, the pushing structure is a cam structure mounted on the base and located on the side of the slide rod away from the guide groove.

[0010] Furthermore, the limiting device also includes a pair of slide guide pins that fix the two ends of the slide rod to the two ends of the base respectively.

[0011] Furthermore, the limiting device also includes a spring mounted on the slide guide pin for automatically resetting the slide.

[0012] Furthermore, the base device also includes a positioning structure disposed on the base for positioning the base on the plugged element.

[0013] The positioning structure includes a boss, groove, or through hole disposed on the lower surface of the base. The auxiliary insertion device proposed in this invention has the following advantages:

[0014] 1. The auxiliary insertion device of the present invention guides the insertion of the plug-in in the direction and position of the inserted component, making the plug-in pin less prone to bending, greatly reducing the probability of bending the pin during manual insertion, and reducing the cost of material scrap.

[0015] 2. The auxiliary plug-in device of the present invention enables the plug-in to be quickly aligned and inserted into the plugged-in component, thereby improving the plug-in efficiency. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the auxiliary plug-in device according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the memory socket installation according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of a memory socket used in an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of a printed circuit board according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the base device and the limiting device assembled according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the limiting device according to an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the crimping device according to an embodiment of the present invention. Detailed Implementation

[0023] like Figure 1 , Figure 2 The figures shown are a schematic diagram of the auxiliary plug-in device provided in an embodiment of the present invention (the crimping device is not shown) and a schematic diagram of the structure after the plug-in is plugged into the inserted element. Figure 1 , Figure 2 As can be seen, the auxiliary insertion device of this invention includes: a base device with a guide structure, the guide structure being used to guide the insertion direction of the insertion and limit the width of the insertion; a limiting device, mounted on the base device, the limiting device being used to limit the length of the insertion placed on the base device; and a crimping device, used to be placed above the insertion and to apply downward pressure to the insertion under external force to insert the insertion into the inserted element. The shape and size of the lower surface of the crimping device are adapted to the shape and size of the upper surface of the insertion.

[0024] In this embodiment of the invention, the plug-in is an electronic component that can be inserted into (or removed from) a socket, rack, or cabinet, such as a memory socket 18 (e.g. Figure 3 As shown), the component plugged into the memory socket 18 is the printed circuit board 17 (i.e., PCB, as shown). Figure 2 , Figure 4 (As shown).

[0025] The following description, using only the example of a plug-in employing a memory socket 18 and inserting the memory socket 18 onto a printed circuit board 17, details the specific structure of the auxiliary plug-in device provided in this embodiment of the invention. It should be noted that the device of this invention can also be used for auxiliary installation of plug-ins with other similar memory sockets.

[0026] like Figure 3 The diagram shown is a structural schematic of the memory socket 18 used in this embodiment. Figure 3 It can be seen that the memory socket 18 includes: a U-shaped memory module socket body 1, latches 2 on both sides of the memory module socket body 1, and several pins 3 at the bottom of the memory module socket body 1. The printed circuit board 17 that is plugged into the memory socket 18 is as follows: Figure 4 As shown, the circuit has copper-plated holes with the same number and arrangement as the number of pins 3, so that when the memory socket 18 is plugged into the printed circuit board, the pins 3 are inserted into the copper-plated holes to achieve electrical connection. The structure of the memory socket 18 and the printed circuit board is basically the same as that of the prior art, and its structure will not be described in detail here.

[0027] In order to enable the memory socket 18 to be quickly inserted into the printed circuit board 17 and reduce the bending of the memory socket pins due to misalignment of the pins with the copper-plated holes or improper installation during the insertion process, this embodiment of the invention uses a base device and a limiting device to guide and limit the insertion and removal of the memory socket 18, and uses a crimping device to apply a downward force to the memory socket 18 so that all the pins of the memory socket 18 are evenly pressed into the copper-plated holes of the printed circuit board 17.

[0028] Specifically, the base device used to guide the insertion and removal of the memory socket 18 can be as follows: Figure 5 The structure shown includes a base, a guide structure, and a handle 6. The base is frame-shaped, including a pair of parallel first sidewalls 20 and a pair of second sidewalls 21 perpendicular to the first sidewalls. The guide structure includes multiple parallel partitions 22 disposed in the middle of the frame-shaped base. The extension direction of the partitions is consistent with that of the second sidewalls. Multiple guide grooves 5 are formed between adjacent partitions and between the farthest pair of partitions and the second sidewalls of the base to guide the insertion direction of the memory socket 18. When set up, the multiple partitions are of the same length so that the length of the guide grooves is the same, and the width of the guide grooves is approximately equal to the width of the memory socket body 1 of the memory socket 18, so that the guide grooves also limit the width of the memory socket 18. When the memory socket 18 is placed in the guide groove 5, the pins of the memory socket 18 extend downward and protrude from the lower surface of the base.

[0029] To prevent incorrect installation of the memory socket 18, a direction marking unit 7 can be provided on the partition. The direction marking unit 7 can be colored on the partition, or it can be provided with grooves, protrusions or patterns on the partition.

[0030] In addition, a pair of handles 6 are provided on both sides of the base to take the base out and put it in. In the design, the pair of handles can be placed on both sides of the base in the same direction as the length extension of the partition, that is, the pair of handles are respectively placed on the outside of the pair of first frames.

[0031] Furthermore, in order to ensure that the position of the guide groove on the base corresponds to the area where the copper-plated holes are provided on the printed circuit board 17 when the memory socket 18 is inserted into the printed circuit board 17, so that all the pins of the memory socket 18 can be inserted one by one into the corresponding copper-plated holes on the printed circuit board 17, the base device also includes a positioning structure for positioning the base on the printed circuit board 17. This positioning structure can adopt a positioning pin connection structure, including multiple through holes provided on the base frame. Correspondingly, a groove (not shown in the figure) or a through hole 23 (e.g., through the printed circuit board) corresponding to the position of the through holes on the base is provided on the surface of the printed circuit board 17 for contacting the lower surface of the base. Figure 4As shown), and positioning pins 4 (such as those for inserting into the groove or through hole on the printed circuit board) at the top for passing through the base and at the bottom for insertion into the groove or through hole on the printed circuit board. Figure 1 , Figure 5 (As shown), thereby fixing the base to the printed circuit board via positioning pins.

[0032] Alternatively, the positioning structure of the present invention may also adopt the following structure, including a boss (not shown in the figure) provided on the lower surface of the base frame, and correspondingly, a groove or a through hole (not shown in the figure) for inserting into the boss is provided on the surface of the printed circuit board 17 for contacting the lower surface of the base. Alternatively, the positioning structure may adopt the following structure, including a groove or a through hole (not shown in the figure) provided on the lower surface of the base frame, and correspondingly, a boss (not shown in the figure) for inserting into the groove or through hole is provided on the surface of the printed circuit board 17 for contacting the lower surface of the base. The base can be fixed to the printed circuit board by inserting the boss into the groove or through hole. Furthermore, the positioning structure may also adopt other structures in the prior art.

[0033] In this invention, a limiting device is used to limit the position of the memory socket 18 placed in the guide groove of the base. This limiting device can be, for example, […]. Figure 4 The structure shown includes a slide rod 8 mounted on a base and movable relative to the base along the extension direction of the guide groove 5, wherein the length extension direction of the slide rod 8 is perpendicular to the extension direction of the guide groove 5.

[0034] During the design process, a slide bar 8 can be installed on one side of the base. By moving this slide bar 8, the length of the guide groove can be changed to limit the length of the memory socket 18 placed within the guide groove. Alternatively, a slide bar 8 can be installed on each of the two sides of the base (i.e., the outer ends of the guide groove). Figure 6 As shown, the length of the guide groove is changed by moving a pair of slide rods 8. The structure of the limiting device will be explained below using only a pair of slide rods 8 as an example.

[0035] To mount the slide bar 8 onto the base, correspondingly, grooves or through holes 19 for accommodating the slide bar 8 are provided on both sides of the first frame of the base. The length extension direction of the grooves or through holes is perpendicular to the length extension direction of the guide groove and is connected to the guide groove. In the design, the grooves or through holes 19 are located on the outer side of the corresponding end of the guide groove 5. In addition, to facilitate changing the length of the guide groove by moving the slide bar 8, the width of the grooves or through holes 19 on the first frame should be greater than the width of the slide bar 8. Preferably, the width of the grooves or through holes 19 should be greater than the travel distance of the slide bar 8.

[0036] During assembly, each slide rod 8 is fixed at both ends to the corresponding frame of the base by a pair of slide rod guide pins 10, and the slide rod 8 can automatically return to its original position after moving relative to the base by the spring 12 fitted on the slide rod guide pin 10.

[0037] Specifically, such as Figure 3 As shown, a pair of guide pin mounting holes are provided at both ends of each first frame of the base, extending in the same direction as the guide groove and reaching into the second frame (the second frame is perpendicular to the first frame). These guide pin mounting holes are located on both sides of the handle 6 to facilitate the installation and removal of the guide pins. A pair of slide guide pins 10 are installed within these guide pin mounting holes. Both ends of the slide rod 8 have through holes corresponding to the positions of the guide pin mounting holes and whose axes are perpendicular to the extension direction of the slide rod 8. One end of each slide guide pin 10 passes through the through holes of the slide rod 8 and is fixed to the second frame of the base; the other end is rotatably connected to the first frame via a linear bearing 11 fitted outside the guide pin, allowing the slide rod 8 to move along the guide pin 10. A spring 12 is fitted outside the slide guide pin 10 to automatically return the slide rod 8 to its original position after movement relative to the base. This spring 12 can be placed between the slide rod 8 and the second frame, or partially placed within the guide pin mounting holes of the second frame (correspondingly, in this case, the diameter of the guide pin mounting hole in the second frame is larger than the outer diameter of the guide pin and approximately equal to the outer diameter of the spring). The sliding rod 8 can move relative to the base along the sliding rod guide pin 10 by the cooperation between the sliding rod guide pin 10 and the sliding rod 8.

[0038] To ensure precise length-direction positioning of the memory socket 18 within the guide groove when the slide bar 8 moves relative to the base, a baffle 9 extending into the guide groove is provided on the side of the slide bar 8 facing the guide groove. The number of baffles 9 on the slide bar 8 matches the number of guide grooves 5, and there is a gap between adjacent baffles 9. This gap is equal to or slightly greater than the thickness of the partition. When the slide bar 8 moves, the partition is precisely inserted into the gap between the corresponding adjacent baffles. While the baffles 9 limit the movement by contacting the side of the memory socket 18, the interaction between adjacent baffles and the partition also guides the movement of the slide bar 8.

[0039] In order to push the slide bar 8 to move relative to the base along the extension direction of the guide groove to limit the length direction of the memory socket 18, the limiting device of the present invention also includes a pushing structure rotatably connected to the base. The pushing structure can be a cam structure installed on the first frame of the base, and the number of cam structures is the same as the number of slide bars 8.

[0040] like Figure 3 , Figure 4As shown, the cam structure includes a cam 13 rotatably mounted on the first edge of the base via a cam pin 14. This cam is a cam with an Archimedean spiral surface, which is used to contact the outer side of the slide bar 8 to lock the slide bar 8 at the cam apex position. For ease of operation, a handle is provided on the cam 13, and color markings 15 can also be provided on the slide bar to prevent incorrect insertion of different colored memory sockets.

[0041] When the limiting device does not limit the length of the memory socket in the guide groove, the handles on the two cams 13 on both sides of the base are far away from the slide bar (e.g., the extension direction of the handle can be perpendicular to the extension direction of the slide bar). When it is necessary to use the limiting device to limit the length of the memory socket, turn the handle of the cam 13 in the limiting device by hand so that the handle rotates towards the slide bar. The handle drives the two cams on both sides of the base to rotate so that the Archimedean spiral surface of the cam contacts the corresponding slide bar. This causes the pair of slide bars 8 to be pushed by the cam to move towards each other and lock at the apex position of the cam 13 (the cam handle stops when it is pushed to contact the slide bar 8, and the position where the cam contacts the slide bar 8 is the apex of the cam).

[0042] After the memory socket 18 is placed in the guide groove 5 of the base device, it needs to be inserted into the printed circuit board 17 under external force. Therefore, the device of the present invention also includes a crimping device for applying downward pressure to the memory socket 18 under external force to insert the memory socket 18 into the printed circuit board 17. Figure 7 As shown, the crimping device can use a pressure block 16, which is plate-shaped. The width of the pressure block 16 is approximately equal to the width of the guide groove. The shape and size of the lower surface of the pressure block 16 are adapted to the shape and size of the upper surface of the memory socket. That is, the two ends of the pressure block are provided with pressure ears for contacting the upper surfaces of a pair of latches 2 of the memory socket 18 respectively. Between the pair of pressure ears, there is a protrusion with the upper part flush with the upper surface of the pressure ear and the lower part extending out of the pressure ear. The protrusion is used to be inserted into the groove of the U-shaped memory module socket body. After the memory socket 18 is placed in the guide groove and its length is limited by the limiting device, the pressure block 16 is pressed on top of the memory socket 18. By applying a downward force to the pressure block 16 by external force, the pins of the memory socket 18 can be inserted into the copper-plated holes of the printed circuit board.

[0043] The following describes a method for using the above-described device to perform auxiliary plug-in operations, the method comprising:

[0044] The plug is placed on the guide structure of the base device so that the insertion direction of the plug is guided by the guide structure;

[0045] The limiting device installed on the base device is used to limit the position of the plug placed on the base device;

[0046] A crimping device is used to apply downward pressure to the insert mounted on the base assembly in order to insert the insert into the component to be connected.

[0047] Below, in conjunction with Figure 1 , Figure 2 Taking the example of inserting the memory socket 18 into the printed circuit board 17 and using a positioning pin connection structure as the positioning structure, the plug-in method of the present invention will be described in detail.

[0048] First, use locating pins to secure the base to the printed circuit board, aligning a guide groove on the base with the area of ​​a copper-plated hole on the printed circuit board. It should be noted that if multiple memory sockets or similar components need to be inserted simultaneously, multiple guide grooves can be aligned with the corresponding copper-plated holes on the printed circuit board.

[0049] Next, the two cam handles on both sides of the base drive both cams to rotate in the direction that brings the handles closer to the slide rods. Utilizing the Archimedean spiral surface of the cams, this pushes the two slide rods 8 to move towards each other (at this time, both springs are compressed), and locks at the apex of cam 13. At this point, the baffle 9 and the guide groove 5 in the base device form a limiting groove (see...). Figure 5 Guide groove with the area indicated by the dashed box (only one is shown in the figure);

[0050] Then, the memory socket 18 is inserted along the limiting groove. Since the positioning pin 4 of the base device cooperates with the positioning hole on the printed circuit board PCB, the pin 3 of the memory socket 18 can be accurately aligned with the copper plated hole of the PCB.

[0051] Secondly, place the pressure block 16 on the upper surface of the memory socket and apply pressure to evenly press the multiple pins 3 of the memory socket into the multiple copper-plated holes of the PCB in one go.

[0052] Finally, rotate the cam 13 in the opposite direction to the direction of the aforementioned rotating cam handle, so that the two slide rods 8 on both sides of the base move in opposite directions under the restoring force of the spring 12, making the length of the limiting groove longer. When the slide rod moves to the point where the baffle can avoid the buckle 2 on the memory socket, hold the pair of handles 6 on both sides of the base to remove the insertion device of the present invention from the memory socket after insertion.

[0053] The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but this does not limit the scope of the invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and spirit of the present invention should be within the scope of the present invention.

Claims

1. An auxiliary plug-in device, characterized in that, include: A base device with a guide structure, the guide structure being used to guide the insertion direction of the plug and to limit the width of the plug; A limiting device is installed on the base device, and the limiting device is used to limit the length of the plug placed on the base device; A crimping device is used to be positioned above the plug-in and to apply downward pressure to the plug-in under external force to insert the plug-in onto the component to be plugged in. The base device includes a base, and the guide structure includes multiple partitions arranged parallel to each other on the base. A guide groove is formed between adjacent partitions for placing the plug-in and guiding the insertion direction of the plug-in and limiting the width of the plug-in. The multiple partitions have the same length, and the guide grooves corresponding to each partition have the same length. The width of the guide groove is equivalent to the width of the memory module socket body. The limiting device includes a slide rod mounted on the base and movable along the length extension direction of the guide groove.

2. The apparatus according to claim 1, characterized in that, The slide bar is provided with a baffle that extends into the guide groove.

3. The apparatus according to claim 2, characterized in that, The limiting device also includes a pushing structure rotatably mounted on the base for pushing the slide bar to move along the extension direction of the guide groove.

4. The apparatus according to claim 3, characterized in that, The pushing structure is a cam structure mounted on the base and located on the side of the slide rod away from the guide groove.

5. The apparatus according to claim 1, characterized in that, The limiting device also includes a pair of slide guide pins that fix the two ends of the slide rod to the two ends of the base respectively.

6. The apparatus according to claim 5, characterized in that, The limiting device also includes a spring mounted on the guide pin of the slide rod for automatically resetting the slide rod.

7. The apparatus according to claim 1, characterized in that, The base device further includes a positioning structure disposed on the base for positioning the base on the plugged element.

8. The apparatus according to claim 7, characterized in that, The positioning structure includes a boss, groove, or through hole provided on the lower surface of the base.

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