Protective device for load board edge connectors

Abstract

This application discloses a protection device for a load board edge connector, relating to the field of chip testing technology. The protection device includes a base, a cover, and a self-locking assembly. The base is fixedly mounted on the load board, the cover is slidably mounted on the base, and the self-locking assembly abuts against a first side of the cover, so that the cover covers the edge connector at the edge of the load board. When the self-locking assembly is released from abutting the first side of the cover, the cover can slide relative to the base to expose the edge connector. This protection device for the load board edge connector, through the slidable cover and self-locking assembly, can achieve both protection and exposure of the edge connector. It allows for switching between test preparation and routine protection without disassembly, effectively improving chip testing efficiency and preventing the loss of components of the protection device during testing.

Description

Technical Field

[0001] This application relates to the field of chip testing technology, and more specifically, to a protection device for a load board edge connector. Background Technology

[0002] Chip testing equipment includes a chassis, a digital measurement board, a load board, and a chip under test (DUT) socket. During testing, multiple DUT chips are typically mounted on the load board via the DUT socket. The load board is then electrically connected to the digital measurement board located inside the chassis via edge connectors (commonly known as gold fingers). This allows the test stimulus signals generated by the digital measurement board to be transmitted to the DUT chips, and the response signals of the DUT chips to be fed back to the digital measurement board, thereby enabling the testing of the DUT chips.

[0003] Because the edge connector is located at the edge of the load board, it is easily bumped and knocked against the equipment chassis and other components during handling and assembly, causing wear and deformation of the edge connector. This affects the reliability of the electrical connection between the load board and the digital measurement board. Therefore, a dedicated protective device is needed to protect the edge connector. In related technologies, the protective device is a detachable protective cover mounted on the load board. Before testing, the protective cover needs to be manually removed; otherwise, it will interfere with the equipment chassis, seriously affecting the testing efficiency of the chip under test. Moreover, after testing, the protective cover needs to be manually reinstalled. During testing, the protective cover and the screws used to fix it are prone to being lost. Summary of the Invention

[0004] The purpose of this application is to provide a protective device for the edge connector of a load board. Through a sliding cover and a self-locking component, the edge connector can be protected and exposed. The switch between test preparation and daily protection can be completed without disassembly, which can effectively improve the chip testing efficiency and prevent the components of the protective device from being lost during testing.

[0005] The embodiments of this application are implemented as follows:

[0006] A first aspect of this application provides a protection device for a load board edge connector, including a base, a cover, and a self-locking assembly. The base is fixedly mounted on a load board, the cover is slidably mounted on the base, and the self-locking assembly abuts against a first side of the cover, so that the cover covers the edge connector at the edge of the load board. When the self-locking assembly is driven to release its abutment from the first side of the cover, the cover can slide relative to the base to expose the edge connector. This protection device for the load board edge connector, through the slidable cover and the self-locking assembly, can achieve both protection and exposure of the edge connector. It allows for switching between test preparation and routine protection without disassembly, effectively improving chip testing efficiency and preventing the loss of components of the protection device during testing.

[0007] In one possible implementation, the self-locking assembly includes a locking member for rotatably disposed on a support plate at the bottom of the load plate. A first end of the locking member is used to abut against the support plate, and a second end of the locking member is used to abut against a first side of the cover. When the locking member is driven to rotate relative to the support plate in a first direction, the second end of the locking member can release its abutment against the first side of the cover.

[0008] In one possible implementation, the self-locking assembly further includes a transmission component and a connecting shaft. The transmission component is rotatably mounted on the support plate. A first end of the transmission component is used to abut against a guide rail inside the chassis. A second end of the transmission component is movably connected to the first end of the locking component via the connecting shaft. When the transmission component is driven to rotate relative to the support plate in a second direction, it can drive the locking component to rotate relative to the support plate in a first direction via the connecting shaft. The first direction and the second direction are opposite.

[0009] In one possible implementation, a first rotating shaft is provided on the support plate, and an oblong hole is provided on the locking member. The first rotating shaft passes through the oblong hole so that the locking member is rotatably mounted on the support plate. A second rotating shaft is provided on the support plate, and an assembly hole is provided on the transmission member. The second rotating shaft passes through the assembly hole so that the transmission member is rotatably mounted on the support plate. The rotation axes of the first rotating shaft, the connecting shaft, and the second rotating shaft are arranged parallel and spaced apart.

[0010] As one possible implementation, the self-locking assembly further includes a first elastic element, the two ends of which are respectively connected to the first end of the transmission member and the support plate. When the transmission member rotates relative to the support plate in the second direction, the first elastic element stores energy. When the first end of the transmission member is released from its contact with the guide rail, the first elastic element releases energy to reset the transmission member to rotate in the first direction.

[0011] In one possible implementation, the transmission component is provided with a limiting shaft, the support plate is provided with a limiting groove, and the limiting shaft passes through the limiting groove to limit the rotation of the transmission component relative to the support plate.

[0012] As one possible implementation, a second elastic element is also included. The second side of the cover is used to abut against a stop block inside the chassis. The two ends of the second elastic element are respectively connected to the first side of the cover and the base. When the cover is driven to slide relative to the base, the second elastic element stores energy. When the second side of the cover is released from abutment against the stop block, the second elastic element releases energy to allow the cover to slide back to its original position.

[0013] As one possible implementation, a guide block is also included. A sliding groove is provided on the base, and the guide block is slidably disposed in the sliding groove. The two ends of the second elastic member are respectively fixedly connected to the first side of the guide block and the sliding groove, and the second side of the guide block is fixedly connected to the first side of the cover, so that the guide block and the sliding groove cooperate to guide the sliding of the cover relative to the base.

[0014] In one possible implementation, a guide rod is provided in the sliding groove, and a guide hole is provided on the guide block. The guide rod passes through the guide hole so that the guide block slides relative to the sliding groove along the guide rod.

[0015] In one possible implementation, the cover includes two cover plates and a connecting plate connecting the two cover plates. The two cover plates are respectively located on the upper and lower sides of the edge connector. The self-locking component is used to abut against one of the cover plates. A clearance groove is provided on the first side of the cover plate abutting against the self-locking component so that the self-locking component can extend into the clearance groove after the abutment with the first side of the cover plate is released.

[0016] The beneficial effects of the embodiments of this application include:

[0017] The protective device for the edge connector of the load board includes a base, a cover, and a self-locking assembly. The base is fixedly mounted on the load board, the cover is slidably mounted on the base, and the self-locking assembly abuts against a first side of the cover, so that the cover covers the edge connector at the edge of the load board. When the self-locking assembly is released from abutting the first side of the cover, the cover can slide relative to the base to expose the edge connector. The protective device provided in this application, through the cover that can slide relative to the base and the self-locking assembly, can achieve protection and exposure of the edge connector. It can switch between test preparation and daily protection without disassembly, effectively improving chip testing efficiency. Furthermore, the cover is always slidably mounted on the base and will not separate during the sliding process relative to the base. The self-locking assembly can also be integrated into the base or the support plate at the bottom of the load board. All components, the load board, and the support plate form a whole that does not need to be disassembled. Therefore, it can also prevent the loss of components of the protective device during testing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 One of the structural schematic diagrams of the load board and protection device provided in the embodiments of this application;

[0020] Figure 2 for Figure 1 A magnified view of a part from a first-person perspective;

[0021] Figure 3 for Figure 1 A magnified view of a portion from a second perspective;

[0022] Figure 4 for Figure 1 A magnified view of a portion from a third-person perspective;

[0023] Figure 5 One of the structural schematic diagrams of the support plate and protective device provided in the embodiments of this application;

[0024] Figure 6 A second schematic diagram of the structure of the support plate and protective device provided in the embodiments of this application;

[0025] Figure 7 The third schematic diagram of the structure of the support plate and protective device provided in the embodiments of this application;

[0026] Figure 8Fourth schematic diagram of the structure of the support plate and protective device provided in the embodiments of this application;

[0027] Figure 9 Fifth schematic diagram of the structure of the support plate and protective device provided in the embodiments of this application;

[0028] Figure 10 This is one of the structural schematic diagrams of the base and cover provided in the embodiments of this application;

[0029] Figure 11 This is the second schematic diagram of the base and cover provided in the embodiments of this application.

[0030] Icons: 100-Protective device; 10-Base; 11-Sliding groove; 111-Guide rod; 20-Cover body; 21-Cover plate; 211-Folded edge; 212-Allowing groove; 22-Connecting plate; 30-Self-locking assembly; 31-Locking element; 311-Oval hole; 32-Transmission element; 321-Assembly hole; 322-Limiting shaft; 33-Connecting shaft; 34-First elastic element; 40-Second elastic element; 50-Guide block; 200-Load plate; 210-Edge connector; 300-Support plate; 310-Limiting groove; 320-First rotating shaft; 330-Second rotating shaft; a-First direction; b-Second direction. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments. Similar reference numerals and letters in the following drawings indicate similar items. Once an item is defined in one drawing, it does not need to be further defined in other drawings.

[0032] The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and should not be construed as limiting this application. The terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to connections within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Please refer to the reference. Figures 1 to 11 This application provides a protection device 100 for the edge connector 210 of a load board 200, including a base 10, a cover 20, and a self-locking component 30. The base 10 is fixedly mounted on the load board 200, and the cover 20 is slidably mounted on the base 10. The self-locking component 30 abuts against a first side of the cover 20, so that the cover 20 covers the edge connector 210 at the edge of the load board 200. When the self-locking component 30 is driven to release its abutment from the first side of the cover 20, the cover 20 can slide relative to the base 10 to expose the edge connector 210. This protection device 100 for the edge connector 210 of the load board 200, through the slidable cover 20 and the self-locking component 30, can achieve both protection and exposure of the edge connector 210. It allows for switching between test preparation and daily protection without disassembly, effectively improving chip testing efficiency and preventing the loss of components of the protection device 100 during testing.

[0035] It should be noted that, as Figures 1 to 4 As shown, the protective device 100 includes a base 10, a cover 20, and a self-locking assembly 30. The base 10 can be made of insulating material and is fixed to the edge of the load plate 200 by screws or clips, maintaining a certain distance from the edge connector 210 located at the edge of the load plate 200 to avoid interference between the base 10 and the insertion / removal of the edge connector 210 and the digital measurement board inside the chassis. The base 10 may be provided with a sliding groove 11 extending along the extension direction of the edge connector 210 to provide sliding guidance for the cover 20. The cover 20 may have a U-shaped structure. The material can be insulating and translucent, so that the user can observe the edge connector 210 from the outside of the cover 20. The cover 20 can be provided with a guide block 50 that matches the sliding groove 11 of the base 10. Through the cooperation of the sliding groove 11 and the guide block 50, the cover 20 can slide linearly relative to the base 10, thereby allowing the cover 20 to completely cover the edge connector 210 for protection, or the cover 20 to completely expose the edge connector 210, so that the edge connector 210 can be plugged in and out with the digital measurement board in the chassis, thereby completing the test preparation.

[0036] The self-locking component 30 can be disposed on the edge of the support plate 300 at the bottom of the load plate 200 near the first side of the cover 20. When the cover 20 needs to completely cover the edge connector 210 for protection, the self-locking component 30 can hold against the first side of the cover 20 to form a mechanical lock on the cover 20. At this time, the cover 20 cannot slide relative to the base 10, and the edge connector 210 is completely wrapped by the cover 20, isolating it from dust, moisture, and impacts. When the cover 20 needs to completely expose the edge connector 210 for testing, the self-locking component 30 can... Under the driving action, the cover 20 is released from its first side. At this time, the cover 20 can slide relative to the base 10 and slide along the sliding groove 11 away from the edge connector 210 until the edge connector 210 is fully exposed. After sliding into place, the cover 20 can be held against the stop block in the chassis by the second side of the cover 20 so that the edge connector 210 is fully exposed. After the test is completed, the cover 20 only needs to slide in the opposite direction to cover the edge connector 210 again. At this time, the self-locking component 30 is held against the first side of the cover 20 again, restoring the protection of the edge connector 210.

[0037] Traditional protection solutions mostly use independent protective covers, which are fixed to the load board 200 with screws or clips. During test preparation, the protective cover needs to be completely removed, and after the test, it needs to be reinstalled on the load board 200. In high-frequency testing scenarios, this takes a lot of time and seriously affects testing efficiency. In addition, the disassembled parts need to be stored separately, which can easily lead to the loss of the protective device components. However, the protection device 100 provided in this application, through the cover 20 that can slide relative to the base 10 and the self-locking component 30, can achieve protection and exposure of the edge connector 210. The switch between test preparation and daily protection can be completed without disassembly, which effectively improves chip testing efficiency. Moreover, the cover 20 is always slidably set on the base 10 and will not separate during the sliding process relative to the base 10. The self-locking component 30 can also be integrated into the base 10 or the support plate 300 at the bottom of the load board 200. All components, the load board 200 and the support plate 300 form a whole that does not need to be disassembled. Therefore, it can also prevent the loss of the components of the protection device 100 during testing.

[0038] As one possible implementation method, such as Figures 3 to 9 As shown, the self-locking assembly 30 includes a locking member 31, which is rotatably mounted on a support plate 300 at the bottom of the load plate 200. The first end of the locking member 31 is used to abut against the support plate 300, and the second end of the locking member 31 is used to abut against the first side of the cover 20. When the locking member 31 is driven to rotate relative to the support plate 300 in a first direction a, the second end of the locking member 31 can release its abutment against the first side of the cover 20.

[0039] It should be noted that the self-locking assembly 30 includes a locking member 31, which can be a rod-shaped or plate-shaped rigid member. The locking member 31 can be provided with a shaft hole and is rotatably connected to the support plate 300 at the bottom of the load plate 200 via a pin. For example, the rotation axis of the locking member 31 extends vertically, and the sliding direction of the cover 20 extends horizontally, so that the rotation axis of the locking member 31 and the sliding direction of the cover 20 are perpendicular to each other, thereby forming a lever structure with the pin as the rotation center through the locking member 31. The two ends of the locking member 31 can be flat structures or can be rounded to form arc surfaces, so that when the two ends of the locking member 31 abut against the first side of the support plate 300 and the cover 20 respectively, scratches can be avoided on the surfaces of the support plate 300 and the cover 20.

[0040] When there is no external driving force, the first end of the locking member 31 abuts against the first abutting surface of the support plate 300, and the second end of the locking member 31 abuts against the first side of the cover 20. At this time, the cover 20 is stopped by the locking member 31 and cannot slide relative to the base 10 towards the exposed edge connector 210, thereby achieving mechanical locking of the cover 20. When a driving force is applied to the first end of the locking member 31, the first end of the locking member 31 rotates relative to the support plate 300 in the first direction a about its rotation center. At the same time, the second end of the locking member 31 also rotates relative to the support plate 300 in the first direction a about its rotation center, so as to abut against the first side of the cover 20. Complete separation releases the locking member 31 from the cover 20, allowing the cover 20 to slide relative to the base 10 towards the exposed edge connector 210, thus exposing the edge connector 210 and facilitating its insertion into the digital measurement board. After the driving force is released, the locking member 31 can rotate in the opposite direction relative to the support plate 300. The first end of the locking member 31 abuts against the first abutting surface of the support plate 300 again, and the second end of the locking member 31 abuts against the first side of the cover 20 again, thereby achieving mechanical locking of the cover 20 again, so that the cover 20 can once again protect the edge connector 210.

[0041] As one possible implementation method, such as Figures 3 to 9 As shown, the self-locking assembly 30 also includes a transmission component 32 and a connecting shaft 33. The transmission component 32 is rotatably mounted on the support plate 300. The first end of the transmission component 32 is used to abut against the guide rail inside the chassis. The second end of the transmission component 32 is movably connected to the first end of the locking component 31 through the connecting shaft 33. When the transmission component 32 is driven to rotate relative to the support plate 300 in the second direction b, it can drive the locking component 31 to rotate relative to the support plate 300 in the first direction a through the connecting shaft 33. The first direction a and the second direction b are opposite.

[0042] It should be noted that the self-locking assembly 30 also includes a transmission component 32 and a connecting shaft 33. The transmission component 32 can be a rod-shaped or plate-shaped rigid member. The transmission component 32 can be provided with a shaft hole and is rotatably connected to the support plate 300 at the bottom of the load plate 200 via a pin. For example, the rotation axis of the transmission component 32 extends vertically so that the rotation axis of the transmission component 32 is parallel to the rotation axis of the locking component 31, thereby forming a second lever structure parallel to the locking component 31 through the transmission component 32. The two ends of the transmission component 32 can be planar structures or can be rounded to form an arc surface structure. One end is used to abut against the guide rail inside the chassis. When the load plate 200 is inserted into the chassis along the guide rail, the guide rail can apply a thrust in the insertion direction to the first end of the transmission member 32. The second end of the transmission member 32 is movably connected to the first end of the locking member 31 through the connecting shaft 33, so that the transmission member 32 and the locking member 31 can rotate relative to each other. When the transmission member 32 rotates in the second direction b (such as clockwise), the second end of the transmission member 32 drives the first end of the locking member 31 through the connecting shaft 33, forcing the locking member 31 to rotate in the first direction a (such as counterclockwise). The two rotate in opposite directions to achieve the reverse transmission of the unlocking action.

[0043] Specifically, when the load plate 200 is inserted along the guide rail inside the chassis, the inner wall of the guide rail contacts the first end of the transmission component 32, so as to apply a thrust to the transmission component 32 through the guide rail, driving the transmission component 32 to rotate around its rotation center in the second direction b (such as clockwise). At this time, the second end of the transmission component 32 drives the first end of the locking component 31 through the connecting shaft 33, forcing the locking component 31 to rotate in the first direction a (such as counterclockwise). As the locking component 31 rotates, the second end of the locking component 31 releases its abutment from the first side of the cover 20. During the insertion process, the second side of the cover 20 slides along the base 10 under the thrust of the inner wall of the chassis, so as to fully expose the edge connector 210; when the load plate 200 When the device is pulled out from inside the chassis, the thrust of the guide rail on the first end of the transmission component 32 disappears. Under the action of the reset force, the transmission component 32 rotates and resets in the opposite direction to the second direction b (such as counterclockwise). Furthermore, the first end of the locking component 31 is driven to rotate and reset in the opposite direction to the first direction a (such as clockwise) through the connecting shaft 33. The second end of the locking component 31 also rotates and resets in the opposite direction to the first direction a (such as clockwise). At the same time, the cover 20 slides in the opposite direction under the action of the reset force. When the load plate 200 is completely pulled out, the cover 20 returns to the protective position that completely covers the edge connector 210, and the second end of the locking component 31 abuts and locks against the first side of the cover 20 again.

[0044] As one possible implementation method, such as Figures 3 to 9As shown, a first rotating shaft 320 is provided on the support plate 300, and a waist-shaped hole 311 is provided on the locking member 31. The first rotating shaft 320 passes through the waist-shaped hole 311 so that the locking member 31 is rotatably mounted on the support plate 300. A second rotating shaft 330 is provided on the support plate 300, and an assembly hole 321 is provided on the transmission member 32. The second rotating shaft 330 passes through the assembly hole 321 so that the transmission member 32 is rotatably mounted on the support plate 300. The rotation axes of the first rotating shaft 320, the connecting shaft 33, and the second rotating shaft 330 are arranged parallel and spaced apart.

[0045] It should be noted that the support plate 300 is provided with a first rotating shaft 320, and the locking member 31 is provided with an oblong hole 311. The oblong hole 311 extends along the length direction of the locking member 31 (i.e., the direction of the line connecting the two ends of the locking member 31). The first rotating shaft 320 passes through the oblong hole 311 so that the locking member 31 is rotatably mounted on the support plate 300, forming a "rotation + sliding" compound fit. This fit allows the locking member 31 to rotate around the first rotating shaft 320 while translating along the length direction of the oblong hole 311. The compound motion of translation and rotation can compensate for the positional deviation between the transmission member 32 and the locking member 31 during the linkage process, so as to avoid the locking member 31 from jamming and being unable to rotate normally.

[0046] A second rotating shaft 330 is provided on the support plate 300, and an assembly hole 321 (i.e., a circular through hole) is provided on the transmission component 32. The second rotating shaft 330 passes through the assembly hole 321 so that the transmission component 32 is rotatably mounted on the support plate 300 to form a rotational fit. This fit can ensure that the rotation center of the transmission component 32 is fixed, avoiding unstable force transmission caused by the offset of the rotation center during transmission, and providing a precise rotation fulcrum for reverse linkage. The rotation axes of the first rotating shaft 320, the connecting shaft 33, and the second rotating shaft 330 are arranged parallel and spaced apart, and are all perpendicular to the sliding direction of the cover 20, ensuring that the rotation plane of the transmission component 32 and the locking component 31 are completely parallel to avoid motion interference.

[0047] As one possible implementation method, such as Figures 3 to 9 As shown, the self-locking assembly 30 also includes a first elastic element 34. The two ends of the first elastic element 34 are respectively connected to the first end of the transmission member 32 and the support plate 300. When the transmission member 32 rotates relative to the support plate 300 in the second direction b, the first elastic element 34 stores energy. When the first end of the transmission member 32 is released from the guide rail, the first elastic element 34 releases energy to reset the transmission member 32 in the first direction a.

[0048] It should be noted that the self-locking assembly 30 also includes a first elastic element 34 (such as a tension spring or torsion spring). The two ends of the first elastic element 34 are connected to the first end of the transmission member 32 and the support plate 300, respectively. In its natural state, the first elastic element 34 can be in a pre-tightened state, so that the first end of the transmission member 32 is in an outwardly protruding initial position to ensure that the load plate 200 can quickly contact the guide rail when inserted. When the load plate 200 is inserted along the guide rail, the inner sidewall of the guide rail contacts the first end of the transmission member 32 and applies a thrust to the transmission member 32 through the guide rail, driving the transmission member 32 to rotate around the second rotation axis 330 in the second direction b (such as clockwise). At this time, the first elastic element 34 is compressed and stores energy. When the load plate 200 is pulled out of the chassis, the thrust of the guide rail on the first end of the transmission member 32 disappears, and the first elastic member 34 can release elastic potential energy so that the transmission member 32 rotates and resets in the opposite direction to the second direction b (such as counterclockwise). Furthermore, the locking member 31 is driven to rotate and reset in the opposite direction to the first direction a (such as clockwise) through the connecting shaft 33 until the first end of the transmission member 32 returns to the initial position of protruding outward. The second end of the locking member 31 then abuts and locks against the first side of the cover 20 again. The entire reset process occurs synchronously with the pull-out action of the load plate 200 so that the cover 20 can protect the edge connector 210 after the load plate 200 is pulled out.

[0049] As one possible implementation method, such as Figures 3 to 9 As shown, a limiting shaft 322 is provided on the transmission component 32, and a limiting groove 310 is provided on the support plate 300. The limiting shaft 322 passes through the limiting groove 310 to limit the rotation of the transmission component 32 relative to the support plate 300.

[0050] It should be noted that a limiting shaft 322 is provided on the transmission component 32. The limiting shaft 322 can be formed together with the transmission component 32, or it can be fixedly set on the transmission component 32. A limiting groove 310 is provided on the support plate 300. The limiting groove 310 can be an arc-shaped groove, and the curvature is consistent with the rotation angle of the transmission component 32. The limiting shaft 322 passes through the limiting groove 310 to limit the rotation of the transmission component 32 relative to the support plate 300. When the load plate 200 is inserted along the guide rail, the limiting shaft 322 moves along the limiting groove 310 with the transmission component 32. When the transmission component 32 rotates to its maximum unlocking angle (i.e., the locking component 31 is fully unlocked and the cover 20 can slide smoothly), the limiting shaft 322 abuts against the first end of the limiting groove 310, forming a hard limit and preventing the transmission component 32 from continuing to rotate. When the load plate 200 is pulled out of the chassis, the limiting shaft 322 slides along the limiting groove 310 towards its second end with the transmission component 32. When the transmission component 32 returns to its initial outward protruding position, the limiting shaft 322 abuts against the second end of the limiting groove 310, forming a hard limit and preventing the transmission component 32 from over-resetting. The arc-shaped trajectory of the limiting groove 310 matches the rotation trajectory of the transmission component 32, ensuring that the limiting shaft 322 always slides smoothly along the limiting groove 310 throughout the entire rotation process, without affecting normal transmission, and can limit the movement at the extreme position.

[0051] As one possible implementation method, such as Figure 10 and Figure 11 As shown, the protection device 100 of the edge connector 210 of the load plate 200 also includes a second elastic member 40. The second side of the cover 20 is used to abut against the stop block inside the chassis. The two ends of the second elastic member 40 are respectively connected to the first side of the cover 20 and the base 10. When the cover 20 is driven to slide relative to the base 10, the second elastic member 40 stores energy. When the second side of the cover 20 is released from abutment against the stop block, the second elastic member 40 releases energy to make the cover 20 slide back to its original position.

[0052] It should be noted that the protective device 100 also includes a second elastic element 40 (such as a tension spring or compression spring). The two ends of the second elastic element 40 are respectively connected to the first side of the cover 20 and the base 10. In its natural state, the second elastic element 40 can be in a pre-tightened state, so that the first side of the cover 20 tightly abuts against the second end of the locking member 31. When the load plate 200 is inserted along the guide rail, the second side of the cover 20 (the side away from the locking member 31) contacts the stop block inside the chassis. The stop block applies pressure to the cover 20 along the exposed edge connector 2. The thrust in the direction of 10 forces the cover 20 to slide relative to the base 10. At this time, the second elastic element 40 connecting the cover 20 and the base 10 is compressed and stores energy. When the load plate 200 is pulled out from inside the chassis, the thrust of the stop block on the second side of the cover 20 disappears, and the second elastic element 40 can release elastic potential energy so that the cover 20 slides back in the opposite direction to the exposed edge connector 210 until the cover 20 completely covers the edge connector 210, and the first side of the cover 20 and the second end of the locking member 31 re-engage and lock.

[0053] As one possible implementation method, such as Figure 10 and Figure 11 As shown, the protective device 100 of the edge connector 210 of the load plate 200 also includes a guide block 50. A sliding groove 11 is provided on the base 10. The guide block 50 is slidably disposed in the sliding groove 11. The two ends of the second elastic member 40 are fixedly connected to the first side of the guide block 50 and the sliding groove 11 respectively. The second side of the guide block 50 is fixedly connected to the first side of the cover 20, so that the guide block 50 and the sliding groove 11 cooperate to guide the sliding of the cover 20 relative to the base 10.

[0054] It should be noted that the protective device 100 also includes a guide block 50, which can be a cuboid or a T-shaped rigid structure. A sliding groove 11 is provided on the base 10, which can be a Z-shaped structure. The shape of the sliding groove 11 is adapted to the shape of the guide block 50. The guide block 50 is slidably disposed in the sliding groove 11. The second side of the guide block 50 is fixedly connected to the first side (such as the folded edge 211) of the cover 20. The two ends of the second elastic member 40 are fixedly connected to the first side of the guide block 50 and the sliding groove 11, respectively. In this way, the force of the second elastic member 40 will first act on the guide block 50, and then drive the cover 20 to slide along the sliding groove 11 through the guide block 50, so as to restrict the degree of freedom of the cover 20 relative to the base 10 and ensure that the cover 20 slides smoothly relative to the base 10 in the designed direction.

[0055] As one possible implementation method, such as Figure 10 and Figure 11As shown, a guide rod 111 is provided in the sliding groove 11, and a guide hole is provided on the guide block 50. The guide rod 111 passes through the guide hole so that the guide block 50 slides relative to the sliding groove 11 along the guide rod 111.

[0056] It should be noted that a guide rod 111 is provided in the sliding groove 11. The guide rod 111 extends along the sliding direction of the cover 20. A guide hole is provided on the guide block 50. The axial direction of the guide hole is consistent with the sliding direction of the cover 20. The guide rod 111 passes through the guide hole, forming a double constraint of "clear fit between the guide rod 111 and the guide hole + close fit between the guide block 50 and the sliding groove 11". The two work together to ensure that the guide block 50 retains only the linear motion degree of freedom along the axis of the guide rod 111, thus avoiding the skewing and jamming phenomenon when the cover 20 slides relative to the base 10.

[0057] As one possible implementation method, such as Figures 3 to 9 As shown, the cover 20 includes two cover plates 21 and a connecting plate 22 connecting the two cover plates 21. The two cover plates 21 are located on the upper and lower sides of the edge connector 210, respectively. The self-locking component 30 is used to abut against one of the cover plates 21. The first side of the cover plate 21 that abuts against the self-locking component 30 is provided with a relief groove 212 so that the self-locking component 30 can extend into the relief groove 212 after the abutment between the self-locking component 30 and the first side of the cover plate 21 is released.

[0058] It should be noted that in this embodiment, the cover 20 has a U-shaped structure, that is, the cover 20 includes two cover plates 21 and a connecting plate 22 connecting the two cover plates 21. The two cover plates 21 are located on the upper and lower sides of the edge connector 210 respectively. The connecting plate 22 connects the ends of the two cover plates 21 (and is located on the edge of the load plate 200), forming a U-shaped wrapping space with an opening facing the side of the load plate 200 where the components are located, completely covering the upper and lower surfaces and sides of the edge connector 210. When the cover 20 completely covers the edge connector 210, the second end of the locking member 31 abuts against and locks against the first side of the cover 20; when the transmission member 32 drives the locking member 31 to rotate along the first direction a, the second end of the locking member 31 releases from abutting against the first side of the cover 20 and can extend into the relief groove 212 of the cover plate 21 under the edge connector 210 to avoid interference with the sliding of the cover 20 relative to the base 10 in the exposure direction to expose the edge connector 210; when the transmission member 32 drives the locking member 31 to rotate in the opposite direction to the first direction a, as the cover 20 slides relative to the base 10 in the coverage direction to completely cover the edge connector 210, the second end of the locking member 31 exits from the relief groove 212 and abuts against and locks against the first side of the cover 20 again.

[0059] The above description is merely an optional embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0060] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

Claims

1. A protection device for a load board edge connector, comprising: The self-locking assembly comprises a locking member, the locking member is arranged to rotate on a support plate arranged at the bottom of the load plate, the locking member is provided with a shaft hole, and the locking member is connected to the support plate through a pin shaft, the first end of the locking member is arranged to abut against the support plate, and the second end of the locking member is arranged to abut against the first side of the cover body, when the locking member is driven to rotate in a first direction relative to the support plate, the second end of the locking member can be disengaged from the first side of the cover body.

2. The protection device for a load board edge connector according to claim 1, wherein, The support plate is provided with a first rotating shaft, the locking member is provided with a waist-shaped hole, the first rotating shaft is arranged to pass through the waist-shaped hole, so that the locking member is arranged to rotate on the support plate, the support plate is provided with a second rotating shaft, the transmission member is provided with an assembly hole, the second rotating shaft is arranged to pass through the assembly hole, so that the transmission member is arranged to rotate on the support plate, and the rotating axes of the first rotating shaft, the connecting shaft and the second rotating shaft are arranged in parallel and at intervals.

3. The protection device for a load board edge connector according to claim 2, wherein, The self-locking assembly further comprises a first elastic member, the two ends of the first elastic member are respectively connected to the first end of the transmission member and the support plate, when the transmission member rotates in the second direction relative to the support plate, the first elastic member stores energy, and when the first end of the transmission member is disengaged from the guide rail, the first elastic member releases energy to make the transmission member rotate in the first direction and reset.

4. The protection device for a load board edge connector according to claim 3, wherein The transmission member is provided with a limiting shaft, the support plate is provided with a limiting groove, the limiting shaft is arranged to pass through the limiting groove, so as to limit the rotation of the transmission member relative to the support plate.

5. The protection device for a load board edge connector of claim 1, wherein, Further comprising a second elastic member, the second side of the cover body is arranged to abut against a stop block in the cabinet, the two ends of the second elastic member are respectively connected to the first side of the cover body and the base, when the cover body is driven to slide relative to the base, the second elastic member stores energy, and when the second side of the cover body is disengaged from the stop block, the second elastic member releases energy to make the cover body slide reversely and reset.

6. The protection device for a load board edge connector according to claim 5, wherein, Further comprising a guide block, a sliding groove is arranged on the base, the guide block is slidingly arranged in the sliding groove, two ends of the second elastic member are fixedly connected with a first side of the guide block and the sliding groove respectively, and a second side of the guide block is fixedly connected with a first side of the cover body, so that the guide block and the sliding groove jointly guide the sliding of the cover body relative to the base.

7. The protection device for a load board edge connector according to claim 6, wherein A guide rod is arranged in the sliding groove, a guide hole is arranged on the guide block, and the guide rod is arranged in the guide hole, so that the guide block slides along the guide rod relative to the sliding groove.

8. The protection device for a load board edge connector of claim 1, wherein, The cover body comprises two cover plates and a connecting plate connecting the two cover plates, the two cover plates are respectively located on the upper and lower sides of the edge connector, the self-locking assembly is used for abutting against one of the cover plates, and a first side of the cover plate abutting against the self-locking assembly is provided with a avoiding groove, so that the self-locking assembly can extend into the avoiding groove after the self-locking assembly and the first side of the cover plate are disengaged.

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