Card edge connector

Abstract

The utility model provides a card edge connector. The card edge connector comprises a base; a lever spring; an ear clip; a touch pressing member; a linkage member; wherein the clamping groove is internally provided with a spacer block in sliding connection with the touch pressing piece, a gap is formed between the second end of the base and the spacer block to form a touch pressing area, the touch pressing piece is provided with a stress block extending into the touch pressing area, and the face, facing the touch pressing area, of the spacer block is provided with a receding opening; the stress block is used for abutting against the portion, inserted into the touch pressing area, of the board card, and the receding opening is used for enabling the portion, inserted into the touch pressing area, of the board card to move in the direction close to the partition block. Under the condition that the board card is reversely pulled out of the clamping groove, the first inserting and pulling part of the board card can move in the direction close to the partition block and enter the receding opening, the effect of weakening extrusion of the first inserting and pulling part on the side face of the partition block is achieved, damage or deformation caused to the partition block is reduced, it is guaranteed that the touch pressing piece can smoothly slide, and therefore the smoothness of the unlocking action is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of connectors, and in particular to a card edge connector. Background Art

[0002] Many computer motherboards are currently equipped with a card edge connector, which allows for the insertion of cards such as graphics cards and memory modules to expand the computer's functionality. A card edge connector typically comprises a base, an ear clip, a contact-and-pressure linkage, and a lever spring. The base is provided with a slot for inserting the card. The middle portion of the lever spring is rotatably connected to the base via a shaft. The ear clip is connected to the first arm of the lever spring and is rotatably connected to the base. The ear clip can be switched between open and closed states by rotation. The contact-and-pressure linkage is connected to the second arm of the lever spring and slides within the slot.

[0003] When the card is inserted into the slot, it presses down on the contact-pressure linkage structure and the second arm of the lever spring, causing the lever spring to deform and store energy, allowing the ear buckle to rotate to the closed position. To remove the card from the slot, the user applies force to the end of the card away from the ear buckle. This releases the contact-pressure linkage structure, and the lever spring releases energy to recover its deformation. The first arm of the lever spring moves and pushes the ear buckle to automatically rotate to the open position, unlocking the card.

[0004] However, in actual application scenarios, users may apply force to the end of the board close to the ear buckle to pull it out. At this time, the board is likely to cause damage and deformation to the position of the base close to the touch-pressure linkage structure, affecting the normal movement of the touch-pressure linkage structure, resulting in an unsmooth unlocking action or even jamming. Utility Model Content

[0005] In view of the above, it is necessary to provide a card edge connector that can reduce damage or deformation to the sliding fit structure and ensure the smoothness of the unlocking action.

[0006] An embodiment of the present application provides a card edge connector, comprising: a base having a card slot for inserting a board; a lever spring, rotatably connected to the base; an ear buckle, rotatably connected to the first end of the base and connected to the first arm of the lever spring; a touch-pressure member, slidably connected to the base; a linkage member, connected to the touch-pressure member and the second arm of the lever spring; wherein, a spacer block for sliding connection of the touch-pressure member is provided in the card slot, a gap is provided between the second end of the base and the spacer block to form a touch-pressure area, the touch-pressure member is provided with a force-bearing block extending into the touch-pressure area, and a clearance opening is provided on a side of the spacer block facing the touch-pressure area; the force-bearing block is used for pressing the part of the board inserted into the touch-pressure area, and the clearance opening is used for moving the part of the board inserted into the touch-pressure area toward the direction close to the spacer block.

[0007] In some embodiments, the width of the clearance opening is greater than or equal to the thickness of the board.

[0008] In some embodiments, the spacer block is provided with a sliding groove extending along the insertion and extraction direction of the board card, and the sliding groove is communicated with the accommodation opening; the pressure piece is partially accommodated and slidably connected to the sliding groove.

[0009] In some embodiments, the bottom of the card slot is provided with a positioning opening communicated with the sliding groove, and the force receiving block is at least partially accommodated in the positioning opening.

[0010] In some embodiments, the force receiving block is provided with a contraction portion on the side away from the card slot opening, and the width of the contraction portion gradually decreases in the direction away from the card slot opening.

[0011] In some embodiments, the base is provided with a limiting groove parallel to the sliding groove, the limiting groove is communicated with the card slot, and the limiting groove penetrates through the side surface of the base; the connecting member is arranged in the limiting groove and connected to the second arm of the lever spring.

[0012] In some embodiments, the part of the pressure piece exposed to the sliding groove is provided with a mounting hole, and the mounting hole is arranged at a position corresponding to the limiting groove; the connecting member is inserted into the mounting hole and arranged in the limiting groove.

[0013] In some embodiments, the limiting groove penetrates through opposite sides of the base, the middle part of the connecting member is arranged in the mounting hole, and the two ends of the connecting member are arranged in the adjacent limiting grooves.

[0014] In some embodiments, the middle part of the limiting groove is provided with a widened portion, and the groove walls on both sides of the widened portion are recessed inward.

[0015] In some embodiments, the side of the base away from the card slot opening is provided with a cutout, the cutout is arranged at a position corresponding to the accommodation opening, and the cutout is communicated with the accommodation opening.

[0016] Through the card edge connector provided by the embodiments of the present application, in the case that the board card is extracted reversely from the card slot, the first insertion and extraction part of the board card will move in the direction close to the spacer block and enter the accommodation opening, which weakens the extrusion of the first insertion and extraction part on the side surface of the spacer block, reduces the damage or deformation of the spacer block, ensures that the pressure piece can slide smoothly, and thus ensures the smoothness of the unlocking action. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 4 is a state change diagram of the card edge connector in the related art, in which the ear buckle of the card edge connector changes from the open state to the closed state.

[0018] Figure 2 FIG. 5 is a state diagram when the board card is normally extracted from the base.

[0019] Figure 3 FIG. 6 is a state diagram when the board card is reversely extracted from the base

[0020] Figure 4 Structure diagram of the card edge connector and the board provided in the present application.

[0021] Figure 5 Structure diagram of the card edge connector provided in the present application when the ear buckle is in the open state.

[0022] Figure 6 Structure diagram of the card edge connector provided in the present application when the ear buckle is in the closed state.

[0023] Figure 7 Cross-sectional view of the card edge connector provided in the present application. Figure 6

[0024] Figure 8 Figure 7

[0025] Figure 9 Structure diagram of the top surface of the second end of the base provided in the present application.

[0026] Figure 10 Structure diagram of the bottom surface of the second end of the base provided in the present application.

[0027] Figure 11 Structure diagram of the second end of the base provided in the present application.

[0028] Figure 12 Cross-sectional view of the second end of the base provided in the present application. Figure 11

[0029] Figure 13 Structure diagram of the touch pressure piece and the linkage provided in the present application.

[0030] Explanation of main element symbols

[0031] Card edge connector 100

[0032] Base 10

[0033] First end 11

[0034] Second end 12

[0035] Card slot 13

[0036] Touch pressure area 131

[0037] Ridge 14

[0038] Rotating shaft 15

[0039] Partition block 16

[0040] Sliding groove 161

[0041] ​​​​Letting position 162

[0042] Positioning opening 17

[0043] Cutting opening 18

[0044] Limiting groove 19

[0045] Broadening part 191

[0046] Lever spring 20

[0047] First arm 22

[0048] Second arm 23

[0049] Linking hole 231

[0050] Elastic arm 24

[0051] Ear buckle 30

[0052] Touch pressure piece 40

[0053] Force block 41

[0054] Contraction part 411

[0055] Mounting hole 43

[0056] Linking piece 50

[0057] Board card 200

[0058] First plug-in part 201

[0059] Second plug-in part 202

[0060] Third plug-in part 203

[0061] First notch 204

[0062] Second notch 205

[0063] Fixed card opening 206

[0064] Card edge connector in related art 300

[0065] Base 301

[0066] Ear buckle 302

[0067] Touch pressure linking structure 303

[0068] Lever spring 304

[0069] Partition block 305

[0070] The following specific embodiments will further illustrate the present application in conjunction with the above figures. DETAILED DESCRIPTION

[0071] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0072] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "arrangement", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification of the present application is only for the purpose of describing specific embodiments and is not intended to limit the present application. The specification, claims and above description of the drawings of the present application and the terms "include" and "have" and any variations thereof, are intended to cover non-exclusive inclusion.

[0074] Reference herein to "embodiments" means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0075] Figure 1 A state change diagram of the card edge connector in the related art, in which the latches of the card edge connector change from an open state to a closed state. Figure 2 A state diagram when the board card is normally pulled out of the base. Figure 3 A state diagram when the board card is reversely pulled out of the base.

[0076] As Figures 1 to 3As shown, the card edge connector 300 in the related art generally comprises a base 301, an ear buckle 302, a touch pressure linkage structure 303 and a lever spring sheet 304, wherein the base 301 is provided with a card slot for inserting the board card 200, and a partition block 305 is arranged in the card slot. The middle part of the lever spring sheet 304 is rotationally connected to the base 301 through a rotating shaft, the ear buckle 302 is connected to the first arm of the lever spring sheet 304, and the ear buckle 302 is rotationally connected to the base 301. The ear buckle 302 has an opening state and a closing state which are switched by rotation. The touch pressure linkage structure 303 is connected to the second arm of the lever spring sheet 304, and the touch pressure linkage structure 303 is slidingly arranged on the partition block 305 in the base 301.

[0077] The board card 200 is provided with a first plug-in part 201 corresponding to the touch pressure linkage structure 303.

[0078] In the case of inserting the board card 200 into the base 301, the first plug-in part 201 of the board card 200 presses down the touch pressure linkage structure 303, the touch pressure linkage structure 303 drives the second arm of the lever spring sheet 304 to press down, the partition block 305 enters the gap, the lever spring sheet 304 deforms to store energy, and the ear buckle 302 can be rotated to the closing state. The board card 200 establishes electrical connection with the card edge connector through the conductive contact of the second plug-in part 202.

[0079] In the case of normally pulling out the board card 200 from the base 301, the user needs to first apply force to the end of the board card 200 close to the first plug-in part 201, so that the first plug-in part 201 of the board card 200 is slightly pulled out first, that is, the end of the board card 200 close to the first plug-in part 201 is first pulled out obliquely from the base 301, in this process, the first plug-in part 201 of the board card 200 releases the touch pressure linkage structure 303, at the same time, the lever spring sheet 304 releases energy to restore deformation, the first arm of the lever spring sheet 304 moves and pushes the ear buckle 302 to automatically rotate to the opening state, realizing automatic unlocking; then, the board card 200 is pulled out from the base 301 as a whole, at this time, the board card 200 can be smoothly unlocked and pulled out.

[0080] However, in actual scenarios of removing the card 200, the user may directly apply force to the end of the card 200 away from the first plug-in portion 201, causing the card 200 to be pulled out in the opposite direction from the base 301. When the card 200 is pulled out in the opposite direction from the base 301, the end of the card 200 away from the first plug-in portion 201 is first pulled out of the base 301 at an angle. At this time, the first plug-in portion 201 of the card 200 moves toward the spacer 305 and abuts against the spacer 305. Since the spacer 305 is located at the end of the board 200, and the overall rotation and tilting of the board 200 will form a lever, even if the user does not apply much force to the end of the board 200 away from the first plug-in portion 201, the pressure exerted by the first plug-in portion 201 of the board 200 on the spacer 305 is equivalent to being amplified by the lever, causing the spacer 305 to be severely squeezed, resulting in damage and deformation of the spacer 305, affecting the normal movement of the touch-pressure linkage structure 303 in the subsequent unlocking action, causing the unlocking action to be not smooth or even stuck.

[0081] To this end, an embodiment of the present application provides a card edge connector, which has the technical effect of smooth unlocking action and is not prone to getting stuck.

[0082] Figure 4 This is a structural diagram of the card edge connector and board provided in this application. Figure 5 This is a schematic structural diagram of the card edge connector provided in this application when the ear buckle is in the open state. Figure 6 This is a schematic diagram of the structure of the card edge connector provided in this application when the ear buckle is in the closed state. Figure 7 for Figure 6 Cross-sectional view of the card edge connector in Figure 1. Figure 8 for Figure 7 A partial enlarged view of the .

[0083] like Figures 4 to 8 As shown, the card edge connector 100 can be applied to computer equipment. Specifically, the card edge connector 100 can be installed on the motherboard of the computer equipment, and the board 200 can be inserted into the card edge connector 100 to electrically connect the board 200 to the motherboard, thereby expanding the functions of the computer equipment.

[0084] In this embodiment, the card edge connector 100 may be a PCI-e connector, and the board 200 may be a graphics card. The board 200 is provided with a first plug portion 201, a second plug portion 202, and a third plug portion 203. The first plug portion 201 and the second plug portion 202 are separated by a first notch 204, and the second plug portion 202 and the third plug portion 203 are separated by a second notch 205. The second plug portion 202 is provided with a conductive contact, and the edge of the third plug portion 203 is provided with a fixing bracket 206.

[0085] like Figure 1 、Figure 3 and Figure 4 As shown in the drawings, the card edge connector 100 comprises a base 10, a lever spring 20, an ear buckle 30, a touch pressure piece 40 and a linkage 50. The base 10 is in the shape of a long strip as a whole, and the two ends of the base 10 in the length direction are respectively formed as a first end 11 and a second end 12. The length direction of the base 10 takes the X-axis direction in the drawings as an example.

[0086] The base 10 is provided with a card slot 13, and the card slot 13 is formed with a notch through the top surface of the base 10, and the card slot 13 is used for inserting the board card 200. Specifically, the card slot 13 can be used for inserting the first plug-in part 201, the second plug-in part 202 and the third plug-in part 203 of the board card 200. The plug-in direction of the board card 200 takes the Z-axis direction in the drawings as an example. The side surface of the base 10 is protruded to form a protruding edge 14, and the protruding edge 14 extends along the length direction of the base 10.

[0087] The lever spring 20 is rotationally connected to the base 10. Specifically, the middle part of the lever spring 20 is provided with a rotation hole, the side surface of the base 10 is protruded to form a rotation shaft 15, and the lever spring 20 is rotationally connected to the rotation shaft 15 through the rotation hole. The lever spring 20 has a first arm 22 and a second arm 23, wherein the first arm 22 is arranged corresponding to the first end 11 of the base 10, the second arm 23 is arranged corresponding to the second end 12 of the base 10, and the second arm 23 is provided with a linkage hole 231. The lever spring 20 also has a resilient arm 24, one end of the resilient arm 24 is connected to the second arm 23 of the lever spring 20, and the other end of the resilient arm 24 has a spacing with the second arm 23 of the lever spring 20 and abuts against the protruding edge 14. Specifically, the number of the lever spring 20 is 2, and the two lever springs 20 are arranged on the two sides of the base 10 respectively.

[0088] The ear buckle 30 is rotationally connected to the first end 11 of the base 10, and the ear buckle 30 has an opening state and a closing state which are switched by rotation. The ear buckle 30 is connected to the first arm 22 of the lever spring 20. When the first arm 22 of the lever spring 20 moves, the first arm 22 can drive the ear buckle 30 to rotate.

[0089] In the example of the present application, the working mode of the ear buckle 30 is that when the ear buckle 30 is flipped away from the base 10, at this time the ear buckle 30 is in the opening state, allowing the third plug-in part 203 to be inserted into one end of the card slot 13.

[0090] When the ear buckle 30 is flipped towards the base 10, the ear buckle 30 shields one end of the card slot 13, at this time the ear buckle 30 is in the closing state, the third plug-in part 203 is inserted into one end of the card slot 13, and the stopper built in the ear buckle 30 enters the fixed clamping hole 206 of the third plug-in part 203. In this way, the ear buckle 30 limits the third plug-in part 203 in the card slot 13, preventing the board card 200 from being pulled out of the base 10.

[0091] The pressing piece 40 is arranged in the card slot 13 and is slidingly connected to the base 10. The sliding direction of the pressing piece 40 is parallel to the insertion direction of the board card 200. Specifically, the card slot 13 is provided with a partition block 16 for sliding connection of the pressing piece 40. The partition block 16 is integrally formed with the base 10. The second end 12 of the base 10 and the partition block 16 have a spacing to form a pressing area 131. The pressing piece 40 is provided with a force receiving block 41 extending into the pressing area 131. The force receiving block 41 is used for abutting the part of the board card 200 inserted into the pressing area 131. The partition block 16 is provided with a clearance 162 on the side facing the pressing area 131. The clearance 162 is used for moving the part of the board card 200 inserted into the pressing area 131 in the direction close to the partition block 16.

[0092] The connecting piece 50 is connected to the pressing piece 40 and the second arm 23 of the lever spring piece 20. When the pressing piece 40 moves, the connecting piece 50 moves synchronously with the pressing piece 40, and the connecting piece 50 drives the second arm 23 of the lever spring piece 20 to move. Specifically, the end of the connecting piece 50 is arranged in the connecting hole 231 of the second arm 23. When the connecting piece 50 moves, the connecting piece 50 abuts the inner side of the connecting hole 231 to drive the second arm 23 to move.

[0093] In the examples of the present application, the cooperation mode between the pressing piece 40, the connecting piece 50, the lever spring piece 20 and the ear buckle 30 is as follows:

[0094] When the pressing piece 40 is pressed downward, the pressing piece 40 moves in the first direction and drives the second arm 23 of the lever spring piece 20 to move in the first direction through the connecting piece 50, so that the lever spring piece 20 rotates forward, the second arm 23 is pressed downward, and the first arm 22 is lifted upward. At this time, the elastic arm 24 and the second arm 23 are bent and deformed. The first direction takes the negative direction of the Z-axis in the drawing as an example.

[0095] After the pressing piece 40 stops being pressed downward, the elastic arm 24 and the second arm 23 restore the deformation, the elastic arm 24 abuts the convex edge 14, so that the second arm 23 is lifted upward, the first arm 22 is pressed downward, the lever spring piece 20 is reversely rotated, at this time, the first arm 22 drives the ear buckle 30 to rotate from the closed state to the open state, and the second arm 23 drives the pressing piece 40 to move in the second direction through the connecting piece 50. The second direction takes the positive direction of the Z-axis in the drawing as an example.

[0096] It can be understood that in the case that the board card 200 is inserted into the card slot 13, the first insertion part 201 of the board card 200 enters the pressing area 131 to press the pressing piece 40 downward, the pressing piece 40 drives the second arm 23 of the lever spring piece 20 to press downward, the partition block 16 enters the first notch 204, the lever spring piece 20 is deformed to store energy, and the ear buckle 30 can be rotated to the closed state.

[0097] In the case that the board card 200 is normally pulled out from the board card 200, the user can first apply force to the end of the board card 200 close to the first plug-in part 201, so that the first plug-in part 201 of the board card 200 is first slightly pulled out, that is, the end of the board card 200 close to the first plug-in part 201 is first tilted and pulled out from the pressing area 131. In this process, the first plug-in part 201 of the board card 200 releases the pressing piece 40, and at the same time, the lever spring piece 20 releases the energy recovery deformation, the first arm 22 of the lever spring piece 20 moves and pushes the ear buckle 30 to automatically rotate to the open state, realizing automatic unlocking. Then, the board card 200 is pulled out from the card slot 13 as a whole, at this time, the board card 200 can be smoothly unlocked and pulled out.

[0098] In the case that the board card 200 is pulled out from the card slot 13 in the reverse direction, that is, when the user directly applies force to the end of the board card 200 away from the first plug-in part 201 to pull it out, the end of the board card 200 away from the first plug-in part 201 is first tilted and pulled out from the card slot 13. At this time, the first plug-in part 201 of the board card 200 will move in the direction close to the partition block 16 and enter the accommodation opening 162, which weakens the extrusion of the first plug-in part 201 on the side surface of the partition block 16, reduces the damage or deformation caused to the partition block 16, and ensures that the pressing piece 40 can smoothly slide, thereby ensuring the smoothness of the unlocking action.

[0099] It is worth noting that in the case that the board card 200 is pulled out from the card slot 13 in the reverse direction, the ear buckle 30 is difficult to automatically rotate to the open state, and the user can manually rotate the ear buckle 30 for unlocking, and then pull the board card 200 out of the card slot 13.

[0100] Figure 9 The structure diagram of the top surface of the second end of the base provided in the present application.

[0101] As shown in Figure 4 , Figure 7 , Figure 8 and Figure 9 , in some embodiments, the partition block 16 is provided with a sliding groove 161, which is opened on the side of the partition block 16 facing the pressing area 131. The sliding groove 161 is arranged along the plug-in direction of the board card 200, is communicated with the accommodation opening 162, and the accommodation opening 162 is communicated with the opposite sides of the sliding groove 161. The pressing piece 40 is partially accommodated and slidably connected in the sliding groove 161. In this way, the sliding groove 161 has a limiting effect on the sliding of the pressing piece 40, so as to ensure that the pressing piece 40 slides in the specified direction. Moreover, the sliding groove 161 limits the sliding stroke of the pressing piece 40, preventing the pressing piece 40 from moving excessively.

[0102] In some embodiments, the width of the accommodation opening 162 is greater than or equal to the thickness of the board card 200. The width direction of the accommodation opening 162 (i.e., the thickness direction of the board card 200) is taken as an example in the Y-axis direction in the figure. In an example, the width of the accommodation opening 162 is slightly greater than the thickness of the board card 200. In this way, when the board card 200 is pulled out of the card slot 13 in the reverse direction, the first plug-in part 201 of the board card 200 can directly enter the accommodation opening 162 for accommodation, reducing the direct contact between the first plug-in part 201 and the partition block 16, so as to achieve the effect of weakening the extrusion force.

[0103] In an example of the present application, the thickness of the first plug-in part 201 of the board card 200 can be 1.57 mm, and the width of the accommodation opening 162 can be 1.75 mm. In other examples, the type of the board card 200 can be configured according to actual needs, and the thickness thereof can also be changed accordingly, while the width of the accommodation opening 162 can be adjusted adaptively, which is not limited in the present application.

[0104] In some embodiments, the bottom of the card slot 13 is provided with a positioning opening 17 which is communicated with the sliding groove 161. The force receiving block 41 is at least partially accommodated in the positioning opening 17.

[0105] When the force receiving block 41 is pressed by the first plug-in part 201 of the board card 200, the force receiving block 41 completely enters the positioning opening 17, which on the one hand reduces the occupation of the internal space of the pressing area 131 by the force receiving block 41, and on the other hand plays a positioning role on the force receiving block 41 to ensure that the force receiving block 41 can be lifted after the first plug-in part 201 is pulled out.

[0106] When the force receiving block 41 is in a natural state, i.e., the force receiving block 41 is not pressed by the first plug-in part 201 of the board card 200, the lower part of the force receiving block 41 is accommodated in the positioning opening 17, and the upper part of the force receiving block 41 is exposed to the pressing area 131 outside the positioning opening 17. The positioning opening 17 plays a positioning role on the lower part of the force receiving block 41 to ensure that the force receiving block 41 can completely enter the positioning opening 17 when pressed, preventing the force receiving block 41 from deviating in position.

[0107] In some embodiments, the side of the force receiving block 41 away from the slot opening of the card slot 13 is provided with a contraction part 411, and the width of the contraction part 411 gradually decreases away from the slot opening of the card slot 13. In an example, the contraction part 411 is located at the lower part of the force receiving block 41, and the two sides of the contraction part 411 gradually contract away from the slot opening of the card slot 13. When the force receiving block 41 is in a natural state, the contraction part 411 of the force receiving block 41 is accommodated in the positioning opening 17, and when the force receiving block 41 is pressed by the first plug-in part 201 of the board card 200, the contraction part 411 can make the force receiving block 41 more easily enter the positioning opening 17, preventing the force receiving block 41 from being jammed with the positioning opening 17.

[0108] Figure 10 Structure diagram of the bottom surface of the second end of the base provided in the present application.

[0109] As shown in Figure 7 , Figure 9 and Figure 10 , in some embodiments, the base 10 is provided with a cutout 18 on the side facing away from the notch of the clamping groove 13, the cutout 18 is located corresponding to the position of the clearance 162, and the cutout 18 is communicated with the clearance 162. For example, the cutout 18 is located on the bottom surface of the base 10, and the projection of the clearance 162 on the height direction of the base 10 overlaps with the cutout 18. The height direction of the base 10 takes the Z-axis direction in the figure as an example.

[0110] It can be understood that, in the forming process of the base 10, after the base 10 is made by the injection molding process, the sliding groove 161 can be formed on the side of the partition block 16 of the base 10 first, and then the cutout 18 is cut upward along the height direction of the base 10 based on the shape of the cutout 18 to cut a certain space in the base 10 to form the clearance 162. In this way, the forming process can be simplified, and the production efficiency can be improved.

[0111] Figure 11 Structure diagram of the second end of the base provided in the present application. Figure 12 Structure diagram of the second end of the base in Figure 11 . Figure 13 Structure diagram of the touch pressure piece and the linkage provided in the present application.

[0112] As shown in Figure 6 , Figure 11 , Figure 12 and Figure 13 , in some embodiments, the base 10 is provided with a limiting groove 19, the limiting groove 19 is arranged in parallel with the sliding groove 161, the limiting groove 19 is communicated with the clamping groove 13, and the limiting groove 19 penetrates through the side surface of the base 10. The limiting groove 19 is matched with the linkage 50, the linkage 50 is arranged in the limiting groove 19, and is connected to the second arm 23 of the lever spring 20. The limiting groove 19 penetrates through the opposite two side surfaces of the base 10, so as to allow the linkage 50 to be arranged in the adjacent limiting groove 19 at both ends respectively, and to be connected to the two lever springs 20 located on the two sides of the base 10.

[0113] In this way, when the touch pressure piece 40 moves, the linkage 50 slides in the limiting groove 19, preventing the linkage 50 from deviating in position, and ensuring that the linkage 50 can smoothly drive the second arm 23 of the lever spring 20 to move. Moreover, the limiting groove 19 limits the sliding stroke of the linkage 50, preventing the linkage 50 from moving excessively.

[0114] In some embodiments, the middle part of the limiting groove 19 is provided with a widened part 191, and the groove walls on both sides of the widened part 191 are recessed inward, so that the limiting groove 19 has a shape of being narrow at both ends and wide in the middle. It can be understood that, in the forming process of the base 10, the shape of the limiting groove 19 needs to be positioned by the shape of the die core of the mold. By configuring the limiting groove 19 to have a shape of being narrow at both ends and wide in the middle, it is avoided that the shape of the die core is too long and easy to be damaged, and the mold is strengthened, and the production efficiency is improved.

[0115] In some embodiments, the contact pressure piece 40 has an overall L shape, the upper end of the contact pressure piece 40 is connected to the linkage 50, and the lower end of the contact pressure piece 40 protrudes to form a force block 41. Specifically, part of the upper end of the contact pressure piece 40 is accommodated in the sliding groove 161, and the other part is exposed outside the sliding groove 161 and is provided with a mounting hole 43. The mounting hole 43 is arranged corresponding to the limiting groove 19, and the projection of the mounting hole 43 on the width direction of the base 10 overlaps the limiting groove 19. The width direction of the base 10 takes the Y-axis direction in the figure as an example.

[0116] In some embodiments, the linkage 50 has an overall long strip plate shape. The length direction of the linkage 50 is parallel to the width direction of the base 10. The linkage 50 is inserted into the mounting hole 43, and the linkage 50 passes through the limiting groove 19. Specifically, the middle part of the linkage 50 passes through the mounting hole 43, and the two ends of the linkage 50 pass through the adjacent limiting grooves 19, respectively.

[0117] In this way, the limiting grooves 19 on both sides of the base 10 can limit the linkage 50 respectively, improve the smoothness of the movement of the linkage 50, and prevent the linkage 50 from being damaged due to unbalanced force on a single end.

[0118] In some embodiments, the inner side of the mounting hole 43 protrudes to form a plurality of protrusions, and the plurality of protrusions abut against the linkage 50, so as to relatively fix the linkage 50 and the contact pressure piece 40 by friction.

[0119] In this way, the linkage 50 can be fixed with the contact pressure piece 40 by the way of insertion, which facilitates the assembly or disassembly between the linkage 50 and the contact pressure piece 40, and improves the production efficiency.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A card edge connector characterized by comprising: The utility model relates to a card slot structure of a card slot, and relates to the technical field of computer hardware. It comprises: a base with a card slot for inserting a board card; a lever spring piece rotatably connected to the base; an ear buckle rotatably connected to a first end of the base and connected to a first arm of the lever spring piece; a touch pressure piece slidably connected to the base; a connecting piece connected to the touch pressure piece and a second arm of the lever spring piece; wherein the card slot is provided with a partition block for slidably connecting the touch pressure piece, and the second end of the base and the partition block have a spacing to form a touch pressure area, the touch pressure piece is provided with a force receiving block extending into the touch pressure area, and one side of the partition block facing the touch pressure area is provided with a clearance opening; 2. The card edge connector of claim 1, wherein, the force receiving block is used for pressing the part of the board card inserted into the touch pressure area, and the clearance opening is used for moving the part of the board card inserted into the touch pressure area in the direction close to the partition block.

3. The card edge connector of claim 1, wherein, The width of the clearance opening is greater than or equal to the thickness of the board card.

4. The card edge connector of claim 3, wherein, The partition block is provided with a sliding groove extending along the insertion and extraction direction of the board card, and the sliding groove is communicated with the clearance opening; and the touch pressure piece is partially accommodated and slidably connected to the sliding groove.

5. The card edge connector of claim 4, wherein, The bottom of the card slot is provided with a positioning opening communicated with the sliding groove, and the force receiving block is at least partially accommodated in the positioning opening.

6. The card edge connector according to claim 3, wherein: The side of the force receiving block away from the card slot opening is provided with a contraction part, and the width of the contraction part gradually decreases in the direction away from the card slot opening.

7. The card edge connector of claim 6, wherein, The base is provided with a limiting groove parallel to the sliding groove, the limiting groove is communicated with the card slot, and the limiting groove penetrates through the side surface of the base; the connecting piece is arranged in the limiting groove and connected to the second arm of the lever spring piece.

8. The card edge connector of claim 7, wherein, The part of the touch pressure piece exposed to the sliding groove is provided with a mounting hole, and the position of the mounting hole corresponds to the limiting groove; the connecting piece is inserted into the mounting hole and arranged in the limiting groove.

9. The card edge connector of claim 6, wherein, The limiting groove penetrates through the opposite two sides of the base, the middle part of the connecting piece is arranged in the mounting hole, and the two ends of the connecting piece are arranged in the adjacent limiting grooves.

10. The card edge connector of claim 1, wherein, The middle part of the limiting groove is provided with a widened part, and the two side groove walls of the widened part are recessed inward. The side of the base away from the card slot opening is provided with a cutout, the position of the cutout corresponds to the clearance opening, and the cutout is communicated with the clearance opening.

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